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version 1.27, 2000/12/05 19:45:36
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version 1.489.2.43, 2021/12/21 16:22:14
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| #!/usr/bin/perl |
#!/usr/bin/perl |
| # The LearningOnline Network |
# The LearningOnline Network |
| # lond "LON Daemon" Server (port "LOND" 5663) |
# lond "LON Daemon" Server (port "LOND" 5663) |
| # 5/26/99,6/4,6/10,6/11,6/14,6/15,6/26,6/28,6/30, |
# |
| # 7/8,7/9,7/10,7/12,7/17,7/19,9/21, |
# $Id$ |
| # 10/7,10/8,10/9,10/11,10/13,10/15,11/4,11/16, |
# |
| # 12/7,12/15,01/06,01/11,01/12,01/14,2/8, |
# Copyright Michigan State University Board of Trustees |
| # 03/07,05/31 Gerd Kortemeyer |
# |
| # 06/26 Scott Harrison |
# This file is part of the LearningOnline Network with CAPA (LON-CAPA). |
| # 06/29,06/30,07/14,07/15,07/17,07/20,07/25,09/18 Gerd Kortemeyer |
# |
| # 12/05 Scott Harrison |
# LON-CAPA is free software; you can redistribute it and/or modify |
| # 12/05 Gerd Kortemeyer |
# it under the terms of the GNU General Public License as published by |
| # |
# the Free Software Foundation; either version 2 of the License, or |
| # based on "Perl Cookbook" ISBN 1-56592-243-3 |
# (at your option) any later version. |
| # preforker - server who forks first |
# |
| # runs as a daemon |
# LON-CAPA is distributed in the hope that it will be useful, |
| # HUPs |
# but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # uses IDEA encryption |
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| |
# GNU General Public License for more details. |
| |
# |
| |
# You should have received a copy of the GNU General Public License |
| |
# along with LON-CAPA; if not, write to the Free Software |
| |
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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# |
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# /home/httpd/html/adm/gpl.txt |
| |
# |
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|
| |
|
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# http://www.lon-capa.org/ |
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# |
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|
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use strict; |
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use lib '/home/httpd/lib/perl/'; |
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use LONCAPA; |
| |
use LONCAPA::Configuration; |
| |
use LONCAPA::Lond; |
| |
|
| use IO::Socket; |
use IO::Socket; |
| use IO::File; |
use IO::File; |
| use Apache::File; |
#use Apache::File; |
| use Symbol; |
|
| use POSIX; |
use POSIX; |
| use Crypt::IDEA; |
use Crypt::IDEA; |
| use LWP::UserAgent(); |
use LWP::UserAgent(); |
| |
use Digest::MD5 qw(md5_hex); |
| use GDBM_File; |
use GDBM_File; |
| use Authen::Krb4; |
use Authen::Krb5; |
| |
use localauth; |
| |
use localenroll; |
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use localstudentphoto; |
| |
use File::Copy; |
| |
use File::Find; |
| |
use LONCAPA::lonlocal; |
| |
use LONCAPA::lonssl; |
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use Fcntl qw(:flock); |
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use Apache::lonnet; |
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use Mail::Send; |
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use Crypt::Eksblowfish::Bcrypt; |
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use Digest::SHA; |
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use Encode; |
| |
|
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my $DEBUG = 0; # Non zero to enable debug log entries. |
| |
|
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my $status=''; |
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my $lastlog=''; |
| |
|
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my $VERSION='$Revision$'; #' stupid emacs |
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my $remoteVERSION; |
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my $currenthostid="default"; |
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my $currentdomainid; |
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|
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my $client; |
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my $clientip; # IP address of client. |
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my $clientname; # LonCAPA name of client. |
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my $clientversion; # LonCAPA version running on client. |
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my $clienthomedom; # LonCAPA domain of homeID for client. |
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# primary library server. |
| |
|
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my $server; |
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|
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my $keymode; |
| |
|
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my $cipher; # Cipher key negotiated with client |
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my $tmpsnum = 0; # Id of tmpputs. |
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|
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# |
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# Connection type is: |
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# client - All client actions are allowed |
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# manager - only management functions allowed. |
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# both - Both management and client actions are allowed |
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# |
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|
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my $ConnectionType; |
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|
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my %managers; # Ip -> manager names |
| |
|
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my %perlvar; # Will have the apache conf defined perl vars. |
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|
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my $dist; |
| |
|
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# |
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# The hash below is used for command dispatching, and is therefore keyed on the request keyword. |
| |
# Each element of the hash contains a reference to an array that contains: |
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# A reference to a sub that executes the request corresponding to the keyword. |
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# A flag that is true if the request must be encoded to be acceptable. |
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# A mask with bits as follows: |
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# CLIENT_OK - Set when the function is allowed by ordinary clients |
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# MANAGER_OK - Set when the function is allowed to manager clients. |
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# |
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my $CLIENT_OK = 1; |
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my $MANAGER_OK = 2; |
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my %Dispatcher; |
| |
|
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|
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# |
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# The array below are password error strings." |
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# |
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my $lastpwderror = 13; # Largest error number from lcpasswd. |
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my @passwderrors = ("ok", |
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"pwchange_failure - lcpasswd must be run as user 'www'", |
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"pwchange_failure - lcpasswd got incorrect number of arguments", |
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"pwchange_failure - lcpasswd did not get the right nubmer of input text lines", |
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"pwchange_failure - lcpasswd too many simultaneous pwd changes in progress", |
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"pwchange_failure - lcpasswd User does not exist.", |
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"pwchange_failure - lcpasswd Incorrect current passwd", |
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"pwchange_failure - lcpasswd Unable to su to root.", |
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"pwchange_failure - lcpasswd Cannot set new passwd.", |
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"pwchange_failure - lcpasswd Username has invalid characters", |
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"pwchange_failure - lcpasswd Invalid characters in password", |
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"pwchange_failure - lcpasswd User already exists", |
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"pwchange_failure - lcpasswd Something went wrong with user addition.", |
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"pwchange_failure - lcpasswd Password mismatch", |
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"pwchange_failure - lcpasswd Error filename is invalid"); |
| |
|
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|
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# This array are the errors from lcinstallfile: |
| |
|
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my @installerrors = ("ok", |
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"Initial user id of client not that of www", |
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"Usage error, not enough command line arguments", |
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"Source filename does not exist", |
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"Destination filename does not exist", |
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"Some file operation failed", |
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"Invalid table filename." |
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); |
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|
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# |
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# Statistics that are maintained and dislayed in the status line. |
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# |
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my $Transactions = 0; # Number of attempted transactions. |
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my $Failures = 0; # Number of transcations failed. |
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|
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# ResetStatistics: |
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# Resets the statistics counters: |
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# |
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sub ResetStatistics { |
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$Transactions = 0; |
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$Failures = 0; |
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} |
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|
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#------------------------------------------------------------------------ |
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# |
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# LocalConnection |
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# Completes the formation of a locally authenticated connection. |
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# This function will ensure that the 'remote' client is really the |
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# local host. If not, the connection is closed, and the function fails. |
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# If so, initcmd is parsed for the name of a file containing the |
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# IDEA session key. The fie is opened, read, deleted and the session |
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# key returned to the caller. |
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# |
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# Parameters: |
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# $Socket - Socket open on client. |
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# $initcmd - The full text of the init command. |
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# |
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# Returns: |
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# IDEA session key on success. |
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# undef on failure. |
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# |
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sub LocalConnection { |
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my ($Socket, $initcmd) = @_; |
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Debug("Attempting local connection: $initcmd client: $clientip"); |
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if($clientip ne "127.0.0.1") { |
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&logthis('<font color="red"> LocalConnection rejecting non local: ' |
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."$clientip ne 127.0.0.1 </font>"); |
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close $Socket; |
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return undef; |
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} else { |
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chomp($initcmd); # Get rid of \n in filename. |
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my ($init, $type, $name) = split(/:/, $initcmd); |
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Debug(" Init command: $init $type $name "); |
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|
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# Require that $init = init, and $type = local: Otherwise |
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# the caller is insane: |
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|
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if(($init ne "init") && ($type ne "local")) { |
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&logthis('<font color = "red"> LocalConnection: caller is insane! ' |
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."init = $init, and type = $type </font>"); |
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close($Socket);; |
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return undef; |
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|
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} |
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# Now get the key filename: |
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|
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my $IDEAKey = lonlocal::ReadKeyFile($name); |
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return $IDEAKey; |
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} |
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} |
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#------------------------------------------------------------------------------ |
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# |
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# SSLConnection |
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# Completes the formation of an ssh authenticated connection. The |
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# socket is promoted to an ssl socket. If this promotion and the associated |
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# certificate exchange are successful, the IDEA key is generated and sent |
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# to the remote peer via the SSL tunnel. The IDEA key is also returned to |
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# the caller after the SSL tunnel is torn down. |
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# |
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# Parameters: |
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# Name Type Purpose |
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# $Socket IO::Socket::INET Plaintext socket. |
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# |
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# Returns: |
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# IDEA key on success. |
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# undef on failure. |
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# |
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sub SSLConnection { |
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my $Socket = shift; |
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|
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Debug("SSLConnection: "); |
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my $KeyFile = lonssl::KeyFile(); |
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if(!$KeyFile) { |
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my $err = lonssl::LastError(); |
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&logthis("<font color=\"red\"> CRITICAL" |
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."Can't get key file $err </font>"); |
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return undef; |
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} |
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my ($CACertificate, |
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$Certificate) = lonssl::CertificateFile(); |
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|
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|
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# If any of the key, certificate or certificate authority |
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# certificate filenames are not defined, this can't work. |
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|
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if((!$Certificate) || (!$CACertificate)) { |
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my $err = lonssl::LastError(); |
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&logthis("<font color=\"red\"> CRITICAL" |
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."Can't get certificates: $err </font>"); |
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|
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return undef; |
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} |
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Debug("Key: $KeyFile CA: $CACertificate Cert: $Certificate"); |
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|
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# Indicate to our peer that we can procede with |
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# a transition to ssl authentication: |
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|
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print $Socket "ok:ssl\n"; |
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|
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Debug("Approving promotion -> ssl"); |
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# And do so: |
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|
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my $SSLSocket = lonssl::PromoteServerSocket($Socket, |
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$CACertificate, |
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$Certificate, |
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$KeyFile); |
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if(! ($SSLSocket) ) { # SSL socket promotion failed. |
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my $err = lonssl::LastError(); |
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&logthis("<font color=\"red\"> CRITICAL " |
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."SSL Socket promotion failed: $err </font>"); |
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return undef; |
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} |
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Debug("SSL Promotion successful"); |
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|
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# |
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# The only thing we'll use the socket for is to send the IDEA key |
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# to the peer: |
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|
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my $Key = lonlocal::CreateCipherKey(); |
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print $SSLSocket "$Key\n"; |
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|
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lonssl::Close($SSLSocket); |
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|
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Debug("Key exchange complete: $Key"); |
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|
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return $Key; |
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} |
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# |
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# InsecureConnection: |
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# If insecure connections are allowd, |
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# exchange a challenge with the client to 'validate' the |
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# client (not really, but that's the protocol): |
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# We produce a challenge string that's sent to the client. |
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# The client must then echo the challenge verbatim to us. |
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# |
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# Parameter: |
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# Socket - Socket open on the client. |
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# Returns: |
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# 1 - success. |
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# 0 - failure (e.g.mismatch or insecure not allowed). |
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# |
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sub InsecureConnection { |
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my $Socket = shift; |
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|
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# Don't even start if insecure connections are not allowed. |
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|
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if(! $perlvar{londAllowInsecure}) { # Insecure connections not allowed. |
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return 0; |
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} |
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|
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# Fabricate a challenge string and send it.. |
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|
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my $challenge = "$$".time; # pid + time. |
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print $Socket "$challenge\n"; |
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&status("Waiting for challenge reply"); |
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|
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my $answer = <$Socket>; |
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$answer =~s/\W//g; |
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if($challenge eq $answer) { |
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return 1; |
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} else { |
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logthis("<font color='blue'>WARNING client did not respond to challenge</font>"); |
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&status("No challenge reqply"); |
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return 0; |
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} |
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|
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|
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} |
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# |
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# Safely execute a command (as long as it's not a shel command and doesn |
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# not require/rely on shell escapes. The function operates by doing a |
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# a pipe based fork and capturing stdout and stderr from the pipe. |
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# |
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# Formal Parameters: |
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# $line - A line of text to be executed as a command. |
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# Returns: |
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# The output from that command. If the output is multiline the caller |
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# must know how to split up the output. |
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# |
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# |
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sub execute_command { |
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my ($line) = @_; |
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my @words = split(/\s/, $line); # Bust the command up into words. |
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my $output = ""; |
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|
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my $pid = open(CHILD, "-|"); |
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|
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if($pid) { # Parent process |
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Debug("In parent process for execute_command"); |
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my @data = <CHILD>; # Read the child's outupt... |
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close CHILD; |
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foreach my $output_line (@data) { |
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Debug("Adding $output_line"); |
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$output .= $output_line; # Presumably has a \n on it. |
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} |
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|
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} else { # Child process |
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close (STDERR); |
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open (STDERR, ">&STDOUT");# Combine stderr, and stdout... |
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exec(@words); # won't return. |
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} |
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return $output; |
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} |
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|
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|
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# GetCertificate: Given a transaction that requires a certificate, |
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# this function will extract the certificate from the transaction |
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# request. Note that at this point, the only concept of a certificate |
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# is the hostname to which we are connected. |
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# |
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# Parameter: |
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# request - The request sent by our client (this parameterization may |
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# need to change when we really use a certificate granting |
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# authority. |
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# |
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sub GetCertificate { |
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my $request = shift; |
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|
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return $clientip; |
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} |
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|
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# |
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# Return true if client is a manager. |
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# |
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sub isManager { |
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return (($ConnectionType eq "manager") || ($ConnectionType eq "both")); |
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} |
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# |
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# Return tru if client can do client functions |
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# |
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sub isClient { |
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return (($ConnectionType eq "client") || ($ConnectionType eq "both")); |
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} |
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|
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|
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# |
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# ReadManagerTable: Reads in the current manager table. For now this is |
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# done on each manager authentication because: |
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# - These authentications are not frequent |
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# - This allows dynamic changes to the manager table |
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# without the need to signal to the lond. |
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# |
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sub ReadManagerTable { |
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|
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&Debug("Reading manager table"); |
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# Clean out the old table first.. |
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|
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foreach my $key (keys %managers) { |
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delete $managers{$key}; |
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} |
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|
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my $tablename = $perlvar{'lonTabDir'}."/managers.tab"; |
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if (!open (MANAGERS, $tablename)) { |
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my $hostname = &Apache::lonnet::hostname($perlvar{'lonHostID'}); |
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if (&Apache::lonnet::is_LC_dns($hostname)) { |
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&logthis('<font color="red">No manager table. Nobody can manage!!</font>'); |
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} |
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return; |
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} |
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while(my $host = <MANAGERS>) { |
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chomp($host); |
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if ($host =~ "^#") { # Comment line. |
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next; |
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} |
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if (!defined &Apache::lonnet::get_host_ip($host)) { # This is a non cluster member |
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# The entry is of the form: |
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# cluname:hostname |
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# cluname - A 'cluster hostname' is needed in order to negotiate |
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# the host key. |
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# hostname- The dns name of the host. |
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# |
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my($cluname, $dnsname) = split(/:/, $host); |
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|
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my $ip = gethostbyname($dnsname); |
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if(defined($ip)) { # bad names don't deserve entry. |
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my $hostip = inet_ntoa($ip); |
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$managers{$hostip} = $cluname; |
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logthis('<font color="green"> registering manager '. |
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"$dnsname as $cluname with $hostip </font>\n"); |
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} |
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} else { |
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logthis('<font color="green"> existing host'." $host</font>\n"); |
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$managers{&Apache::lonnet::get_host_ip($host)} = $host; # Use info from cluster tab if cluster memeber |
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} |
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} |
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} |
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|
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# |
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# ValidManager: Determines if a given certificate represents a valid manager. |
| |
# in this primitive implementation, the 'certificate' is |
| |
# just the connecting loncapa client name. This is checked |
| |
# against a valid client list in the configuration. |
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# |
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# |
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sub ValidManager { |
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my $certificate = shift; |
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|
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return isManager; |
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} |
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# |
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# CopyFile: Called as part of the process of installing a |
| |
# new configuration file. This function copies an existing |
| |
# file to a backup file. |
| |
# Parameters: |
| |
# oldfile - Name of the file to backup. |
| |
# newfile - Name of the backup file. |
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# Return: |
| |
# 0 - Failure (errno has failure reason). |
| |
# 1 - Success. |
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# |
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sub CopyFile { |
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|
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my ($oldfile, $newfile) = @_; |
| |
|
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if (! copy($oldfile,$newfile)) { |
| |
return 0; |
| |
} |
| |
chmod(0660, $newfile); |
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return 1; |
| |
} |
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# |
| |
# Host files are passed out with externally visible host IPs. |
| |
# If, for example, we are behind a fire-wall or NAT host, our |
| |
# internally visible IP may be different than the externally |
| |
# visible IP. Therefore, we always adjust the contents of the |
| |
# host file so that the entry for ME is the IP that we believe |
| |
# we have. At present, this is defined as the entry that |
| |
# DNS has for us. If by some chance we are not able to get a |
| |
# DNS translation for us, then we assume that the host.tab file |
| |
# is correct. |
| |
# BUGBUGBUG - in the future, we really should see if we can |
| |
# easily query the interface(s) instead. |
| |
# Parameter(s): |
| |
# contents - The contents of the host.tab to check. |
| |
# Returns: |
| |
# newcontents - The adjusted contents. |
| |
# |
| |
# |
| |
sub AdjustHostContents { |
| |
my $contents = shift; |
| |
my $adjusted; |
| |
my $me = $perlvar{'lonHostID'}; |
| |
|
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foreach my $line (split(/\n/,$contents)) { |
| |
if(!(($line eq "") || ($line =~ /^ *\#/) || ($line =~ /^ *$/) || |
| |
($line =~ /^\s*\^/))) { |
| |
chomp($line); |
| |
my ($id,$domain,$role,$name,$ip,$maxcon,$idleto,$mincon)=split(/:/,$line); |
| |
if ($id eq $me) { |
| |
my $ip = gethostbyname($name); |
| |
my $ipnew = inet_ntoa($ip); |
| |
$ip = $ipnew; |
| |
# Reconstruct the host line and append to adjusted: |
| |
|
| |
my $newline = "$id:$domain:$role:$name:$ip"; |
| |
if($maxcon ne "") { # Not all hosts have loncnew tuning params |
| |
$newline .= ":$maxcon:$idleto:$mincon"; |
| |
} |
| |
$adjusted .= $newline."\n"; |
| |
|
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} else { # Not me, pass unmodified. |
| |
$adjusted .= $line."\n"; |
| |
} |
| |
} else { # Blank or comment never re-written. |
| |
$adjusted .= $line."\n"; # Pass blanks and comments as is. |
| |
} |
| |
} |
| |
return $adjusted; |
| |
} |
| |
# |
| |
# InstallFile: Called to install an administrative file: |
| |
# - The file is created int a temp directory called <name>.tmp |
| |
# - lcinstall file is called to install the file. |
| |
# since the web app has no direct write access to the table directory |
| |
# |
| |
# Parameters: |
| |
# Name of the file |
| |
# File Contents. |
| |
# Return: |
| |
# nonzero - success. |
| |
# 0 - failure and $! has an errno. |
| |
# Assumptions: |
| |
# File installtion is a relatively infrequent |
| |
# |
| |
sub InstallFile { |
| |
|
| |
my ($Filename, $Contents) = @_; |
| |
# my $TempFile = $Filename.".tmp"; |
| |
my $exedir = $perlvar{'lonDaemons'}; |
| |
my $tmpdir = $exedir.'/tmp/'; |
| |
my $TempFile = $tmpdir."TempTableFile.tmp"; |
| |
|
| |
# Open the file for write: |
| |
|
| |
my $fh = IO::File->new("> $TempFile"); # Write to temp. |
| |
if(!(defined $fh)) { |
| |
&logthis('<font color="red"> Unable to create '.$TempFile."</font>"); |
| |
return 0; |
| |
} |
| |
# write the contents of the file: |
| |
|
| |
print $fh ($Contents); |
| |
$fh->close; # In case we ever have a filesystem w. locking |
| |
|
| |
chmod(0664, $TempFile); # Everyone can write it. |
| |
|
| |
# Use lcinstall file to put the file in the table directory... |
| |
|
| |
&Debug("Opening pipe to $exedir/lcinstallfile $TempFile $Filename"); |
| |
my $pf = IO::File->new("| $exedir/lcinstallfile $TempFile $Filename > $exedir/logs/lcinstallfile.log"); |
| |
close $pf; |
| |
my $err = $?; |
| |
&Debug("Status is $err"); |
| |
if ($err != 0) { |
| |
my $msg = $err; |
| |
if ($err < @installerrors) { |
| |
$msg = $installerrors[$err]; |
| |
} |
| |
&logthis("Install failed for table file $Filename : $msg"); |
| |
return 0; |
| |
} |
| |
|
| |
# Remove the temp file: |
| |
|
| |
unlink($TempFile); |
| |
|
| |
return 1; |
| |
} |
| |
|
| |
|
| |
# |
| |
# ConfigFileFromSelector: converts a configuration file selector |
| |
# into a configuration file pathname. |
| |
# Supports the following file selectors: |
| |
# hosts, domain, dns_hosts, dns_domain |
| |
# |
| |
# |
| |
# Parameters: |
| |
# selector - Configuration file selector. |
| |
# Returns: |
| |
# Full path to the file or undef if the selector is invalid. |
| |
# |
| |
sub ConfigFileFromSelector { |
| |
my $selector = shift; |
| |
my $tablefile; |
| |
|
| |
my $tabledir = $perlvar{'lonTabDir'}.'/'; |
| |
if (($selector eq "hosts") || ($selector eq "domain") || |
| |
($selector eq "dns_hosts") || ($selector eq "dns_domain")) { |
| |
$tablefile = $tabledir.$selector.'.tab'; |
| |
} |
| |
return $tablefile; |
| |
} |
| |
# |
| |
# PushFile: Called to do an administrative push of a file. |
| |
# - Ensure the file being pushed is one we support. |
| |
# - Backup the old file to <filename.saved> |
| |
# - Separate the contents of the new file out from the |
| |
# rest of the request. |
| |
# - Write the new file. |
| |
# Parameter: |
| |
# Request - The entire user request. This consists of a : separated |
| |
# string pushfile:tablename:contents. |
| |
# NOTE: The contents may have :'s in it as well making things a bit |
| |
# more interesting... but not much. |
| |
# Returns: |
| |
# String to send to client ("ok" or "refused" if bad file). |
| |
# |
| |
sub PushFile { |
| |
my $request = shift; |
| |
my ($command, $filename, $contents) = split(":", $request, 3); |
| |
&Debug("PushFile"); |
| |
|
| |
# At this point in time, pushes for only the following tables are |
| |
# supported: |
| |
# hosts.tab ($filename eq host). |
| |
# domain.tab ($filename eq domain). |
| |
# dns_hosts.tab ($filename eq dns_host). |
| |
# dns_domain.tab ($filename eq dns_domain). |
| |
# Construct the destination filename or reject the request. |
| |
# |
| |
# lonManage is supposed to ensure this, however this session could be |
| |
# part of some elaborate spoof that managed somehow to authenticate. |
| |
# |
| |
|
| |
|
| |
my $tablefile = ConfigFileFromSelector($filename); |
| |
if(! (defined $tablefile)) { |
| |
return "refused"; |
| |
} |
| |
|
| |
# If the file being pushed is the host file, we adjust the entry for ourself so that the |
| |
# IP will be our current IP as looked up in dns. Note this is only 99% good as it's possible |
| |
# to conceive of conditions where we don't have a DNS entry locally. This is possible in a |
| |
# network sense but it doesn't make much sense in a LonCAPA sense so we ignore (for now) |
| |
# that possibilty. |
| |
|
| |
if($filename eq "host") { |
| |
$contents = AdjustHostContents($contents); |
| |
} elsif ($filename eq 'dns_host' || $filename eq 'dns_domain') { |
| |
if ($contents eq '') { |
| |
&logthis('<font color="red"> Pushfile: unable to install ' |
| |
.$tablefile." - no data received from push. </font>"); |
| |
return 'error: push had no data'; |
| |
} |
| |
if (&Apache::lonnet::get_host_ip($clientname)) { |
| |
my $clienthost = &Apache::lonnet::hostname($clientname); |
| |
if ($managers{$clientip} eq $clientname) { |
| |
my $clientprotocol = $Apache::lonnet::protocol{$clientname}; |
| |
$clientprotocol = 'http' if ($clientprotocol ne 'https'); |
| |
my $url = '/adm/'.$filename; |
| |
$url =~ s{_}{/}; |
| |
my $ua=new LWP::UserAgent; |
| |
$ua->timeout(60); |
| |
my $request=new HTTP::Request('GET',"$clientprotocol://$clienthost$url"); |
| |
my $response=$ua->request($request); |
| |
if ($response->is_error()) { |
| |
&logthis('<font color="red"> Pushfile: unable to install ' |
| |
.$tablefile." - error attempting to pull data. </font>"); |
| |
return 'error: pull failed'; |
| |
} else { |
| |
my $result = $response->content; |
| |
chomp($result); |
| |
unless ($result eq $contents) { |
| |
&logthis('<font color="red"> Pushfile: unable to install ' |
| |
.$tablefile." - pushed data and pulled data differ. </font>"); |
| |
my $pushleng = length($contents); |
| |
my $pullleng = length($result); |
| |
if ($pushleng != $pullleng) { |
| |
return "error: $pushleng vs $pullleng bytes"; |
| |
} else { |
| |
return "error: mismatch push and pull"; |
| |
} |
| |
} |
| |
} |
| |
} |
| |
} |
| |
} |
| |
|
| |
# Install the new file: |
| |
|
| |
&logthis("Installing new $tablefile contents:\n$contents"); |
| |
if(!InstallFile($tablefile, $contents)) { |
| |
&logthis('<font color="red"> Pushfile: unable to install ' |
| |
.$tablefile." $! </font>"); |
| |
return "error:$!"; |
| |
} else { |
| |
&logthis('<font color="green"> Installed new '.$tablefile |
| |
." - transaction by: $clientname ($clientip)</font>"); |
| |
my $adminmail = $perlvar{'lonAdmEMail'}; |
| |
my $admindom = &Apache::lonnet::host_domain($perlvar{'lonHostID'}); |
| |
if ($admindom ne '') { |
| |
my %domconfig = |
| |
&Apache::lonnet::get_dom('configuration',['contacts'],$admindom); |
| |
if (ref($domconfig{'contacts'}) eq 'HASH') { |
| |
if ($domconfig{'contacts'}{'adminemail'} ne '') { |
| |
$adminmail = $domconfig{'contacts'}{'adminemail'}; |
| |
} |
| |
} |
| |
} |
| |
if ($adminmail =~ /^[^\@]+\@[^\@]+$/) { |
| |
my $msg = new Mail::Send; |
| |
$msg->to($adminmail); |
| |
$msg->subject('LON-CAPA DNS update on '.$perlvar{'lonHostID'}); |
| |
$msg->add('Content-type','text/plain; charset=UTF-8'); |
| |
if (my $fh = $msg->open()) { |
| |
print $fh 'Update to '.$tablefile.' from Cluster Manager '. |
| |
"$clientname ($clientip)\n"; |
| |
$fh->close; |
| |
} |
| |
} |
| |
} |
| |
|
| |
# Indicate success: |
| |
|
| |
return "ok"; |
| |
|
| |
} |
| |
|
| |
# |
| |
# Called to re-init either lonc or lond. |
| |
# |
| |
# Parameters: |
| |
# request - The full request by the client. This is of the form |
| |
# reinit:<process> |
| |
# where <process> is allowed to be either of |
| |
# lonc or lond |
| |
# |
| |
# Returns: |
| |
# The string to be sent back to the client either: |
| |
# ok - Everything worked just fine. |
| |
# error:why - There was a failure and why describes the reason. |
| |
# |
| |
# |
| |
sub ReinitProcess { |
| |
my $request = shift; |
| |
|
| |
|
| |
# separate the request (reinit) from the process identifier and |
| |
# validate it producing the name of the .pid file for the process. |
| |
# |
| |
# |
| |
my ($junk, $process) = split(":", $request); |
| |
my $processpidfile = $perlvar{'lonDaemons'}.'/logs/'; |
| |
if($process eq 'lonc') { |
| |
$processpidfile = $processpidfile."lonc.pid"; |
| |
if (!open(PIDFILE, "< $processpidfile")) { |
| |
return "error:Open failed for $processpidfile"; |
| |
} |
| |
my $loncpid = <PIDFILE>; |
| |
close(PIDFILE); |
| |
logthis('<font color="red"> Reinitializing lonc pid='.$loncpid |
| |
."</font>"); |
| |
kill("USR2", $loncpid); |
| |
} elsif ($process eq 'lond') { |
| |
logthis('<font color="red"> Reinitializing self (lond) </font>'); |
| |
&UpdateHosts; # Lond is us!! |
| |
} else { |
| |
&logthis('<font color="yellow" Invalid reinit request for '.$process |
| |
."</font>"); |
| |
return "error:Invalid process identifier $process"; |
| |
} |
| |
return 'ok'; |
| |
} |
| |
# Validate a line in a configuration file edit script: |
| |
# Validation includes: |
| |
# - Ensuring the command is valid. |
| |
# - Ensuring the command has sufficient parameters |
| |
# Parameters: |
| |
# scriptline - A line to validate (\n has been stripped for what it's worth). |
| |
# |
| |
# Return: |
| |
# 0 - Invalid scriptline. |
| |
# 1 - Valid scriptline |
| |
# NOTE: |
| |
# Only the command syntax is checked, not the executability of the |
| |
# command. |
| |
# |
| |
sub isValidEditCommand { |
| |
my $scriptline = shift; |
| |
|
| |
# Line elements are pipe separated: |
| |
|
| |
my ($command, $key, $newline) = split(/\|/, $scriptline); |
| |
&logthis('<font color="green"> isValideditCommand checking: '. |
| |
"Command = '$command', Key = '$key', Newline = '$newline' </font>\n"); |
| |
|
| |
if ($command eq "delete") { |
| |
# |
| |
# key with no newline. |
| |
# |
| |
if( ($key eq "") || ($newline ne "")) { |
| |
return 0; # Must have key but no newline. |
| |
} else { |
| |
return 1; # Valid syntax. |
| |
} |
| |
} elsif ($command eq "replace") { |
| |
# |
| |
# key and newline: |
| |
# |
| |
if (($key eq "") || ($newline eq "")) { |
| |
return 0; |
| |
} else { |
| |
return 1; |
| |
} |
| |
} elsif ($command eq "append") { |
| |
if (($key ne "") && ($newline eq "")) { |
| |
return 1; |
| |
} else { |
| |
return 0; |
| |
} |
| |
} else { |
| |
return 0; # Invalid command. |
| |
} |
| |
return 0; # Should not get here!!! |
| |
} |
| |
# |
| |
# ApplyEdit - Applies an edit command to a line in a configuration |
| |
# file. It is the caller's responsiblity to validate the |
| |
# edit line. |
| |
# Parameters: |
| |
# $directive - A single edit directive to apply. |
| |
# Edit directives are of the form: |
| |
# append|newline - Appends a new line to the file. |
| |
# replace|key|newline - Replaces the line with key value 'key' |
| |
# delete|key - Deletes the line with key value 'key'. |
| |
# $editor - A config file editor object that contains the |
| |
# file being edited. |
| |
# |
| |
sub ApplyEdit { |
| |
|
| |
my ($directive, $editor) = @_; |
| |
|
| |
# Break the directive down into its command and its parameters |
| |
# (at most two at this point. The meaning of the parameters, if in fact |
| |
# they exist depends on the command). |
| |
|
| |
my ($command, $p1, $p2) = split(/\|/, $directive); |
| |
|
| |
if($command eq "append") { |
| |
$editor->Append($p1); # p1 - key p2 null. |
| |
} elsif ($command eq "replace") { |
| |
$editor->ReplaceLine($p1, $p2); # p1 - key p2 = newline. |
| |
} elsif ($command eq "delete") { |
| |
$editor->DeleteLine($p1); # p1 - key p2 null. |
| |
} else { # Should not get here!!! |
| |
die "Invalid command given to ApplyEdit $command" |
| |
} |
| |
} |
| |
# |
| |
# AdjustOurHost: |
| |
# Adjusts a host file stored in a configuration file editor object |
| |
# for the true IP address of this host. This is necessary for hosts |
| |
# that live behind a firewall. |
| |
# Those hosts have a publicly distributed IP of the firewall, but |
| |
# internally must use their actual IP. We assume that a given |
| |
# host only has a single IP interface for now. |
| |
# Formal Parameters: |
| |
# editor - The configuration file editor to adjust. This |
| |
# editor is assumed to contain a hosts.tab file. |
| |
# Strategy: |
| |
# - Figure out our hostname. |
| |
# - Lookup the entry for this host. |
| |
# - Modify the line to contain our IP |
| |
# - Do a replace for this host. |
| |
sub AdjustOurHost { |
| |
my $editor = shift; |
| |
|
| |
# figure out who I am. |
| |
|
| |
my $myHostName = $perlvar{'lonHostID'}; # LonCAPA hostname. |
| |
|
| |
# Get my host file entry. |
| |
|
| |
my $ConfigLine = $editor->Find($myHostName); |
| |
if(! (defined $ConfigLine)) { |
| |
die "AdjustOurHost - no entry for me in hosts file $myHostName"; |
| |
} |
| |
# figure out my IP: |
| |
# Use the config line to get my hostname. |
| |
# Use gethostbyname to translate that into an IP address. |
| |
# |
| |
my ($id,$domain,$role,$name,$maxcon,$idleto,$mincon) = split(/:/,$ConfigLine); |
| |
# |
| |
# Reassemble the config line from the elements in the list. |
| |
# Note that if the loncnew items were not present before, they will |
| |
# be now even if they would be empty |
| |
# |
| |
my $newConfigLine = $id; |
| |
foreach my $item ($domain, $role, $name, $maxcon, $idleto, $mincon) { |
| |
$newConfigLine .= ":".$item; |
| |
} |
| |
# Replace the line: |
| |
|
| |
$editor->ReplaceLine($id, $newConfigLine); |
| |
|
| |
} |
| |
# |
| |
# ReplaceConfigFile: |
| |
# Replaces a configuration file with the contents of a |
| |
# configuration file editor object. |
| |
# This is done by: |
| |
# - Copying the target file to <filename>.old |
| |
# - Writing the new file to <filename>.tmp |
| |
# - Moving <filename.tmp> -> <filename> |
| |
# This laborious process ensures that the system is never without |
| |
# a configuration file that's at least valid (even if the contents |
| |
# may be dated). |
| |
# Parameters: |
| |
# filename - Name of the file to modify... this is a full path. |
| |
# editor - Editor containing the file. |
| |
# |
| |
sub ReplaceConfigFile { |
| |
|
| |
my ($filename, $editor) = @_; |
| |
|
| |
CopyFile ($filename, $filename.".old"); |
| |
|
| |
my $contents = $editor->Get(); # Get the contents of the file. |
| |
|
| |
InstallFile($filename, $contents); |
| |
} |
| |
# |
| |
# |
| |
# Called to edit a configuration table file |
| |
# Parameters: |
| |
# request - The entire command/request sent by lonc or lonManage |
| |
# Return: |
| |
# The reply to send to the client. |
| |
# |
| |
sub EditFile { |
| |
my $request = shift; |
| |
|
| |
# Split the command into it's pieces: edit:filetype:script |
| |
|
| |
my ($cmd, $filetype, $script) = split(/:/, $request,3); # : in script |
| |
|
| |
# Check the pre-coditions for success: |
| |
|
| |
if($cmd != "edit") { # Something is amiss afoot alack. |
| |
return "error:edit request detected, but request != 'edit'\n"; |
| |
} |
| |
if( ($filetype ne "hosts") && |
| |
($filetype ne "domain")) { |
| |
return "error:edit requested with invalid file specifier: $filetype \n"; |
| |
} |
| |
|
| |
# Split the edit script and check it's validity. |
| |
|
| |
my @scriptlines = split(/\n/, $script); # one line per element. |
| |
my $linecount = scalar(@scriptlines); |
| |
for(my $i = 0; $i < $linecount; $i++) { |
| |
chomp($scriptlines[$i]); |
| |
if(!isValidEditCommand($scriptlines[$i])) { |
| |
return "error:edit with bad script line: '$scriptlines[$i]' \n"; |
| |
} |
| |
} |
| |
|
| |
# Execute the edit operation. |
| |
# - Create a config file editor for the appropriate file and |
| |
# - execute each command in the script: |
| |
# |
| |
my $configfile = ConfigFileFromSelector($filetype); |
| |
if (!(defined $configfile)) { |
| |
return "refused\n"; |
| |
} |
| |
my $editor = ConfigFileEdit->new($configfile); |
| |
|
| |
for (my $i = 0; $i < $linecount; $i++) { |
| |
ApplyEdit($scriptlines[$i], $editor); |
| |
} |
| |
# If the file is the host file, ensure that our host is |
| |
# adjusted to have our ip: |
| |
# |
| |
if($filetype eq "host") { |
| |
AdjustOurHost($editor); |
| |
} |
| |
# Finally replace the current file with our file. |
| |
# |
| |
ReplaceConfigFile($configfile, $editor); |
| |
|
| |
return "ok\n"; |
| |
} |
| |
|
| |
# read_profile |
| |
# |
| |
# Returns a set of specific entries from a user's profile file. |
| |
# this is a utility function that is used by both get_profile_entry and |
| |
# get_profile_entry_encrypted. |
| |
# |
| |
# Parameters: |
| |
# udom - Domain in which the user exists. |
| |
# uname - User's account name (loncapa account) |
| |
# namespace - The profile namespace to open. |
| |
# what - A set of & separated queries. |
| |
# Returns: |
| |
# If all ok: - The string that needs to be shipped back to the user. |
| |
# If failure - A string that starts with error: followed by the failure |
| |
# reason.. note that this probabyl gets shipped back to the |
| |
# user as well. |
| |
# |
| |
sub read_profile { |
| |
my ($udom, $uname, $namespace, $what) = @_; |
| |
|
| |
my $hashref = &tie_user_hash($udom, $uname, $namespace, |
| |
&GDBM_READER()); |
| |
if ($hashref) { |
| |
my @queries=split(/\&/,$what); |
| |
if ($namespace eq 'roles') { |
| |
@queries = map { &unescape($_); } @queries; |
| |
} |
| |
my $qresult=''; |
| |
|
| |
for (my $i=0;$i<=$#queries;$i++) { |
| |
$qresult.="$hashref->{$queries[$i]}&"; # Presumably failure gives empty string. |
| |
} |
| |
$qresult=~s/\&$//; # Remove trailing & from last lookup. |
| |
if (&untie_user_hash($hashref)) { |
| |
return $qresult; |
| |
} else { |
| |
return "error: ".($!+0)." untie (GDBM) Failed"; |
| |
} |
| |
} else { |
| |
if ($!+0 == 2) { |
| |
return "error:No such file or GDBM reported bad block error"; |
| |
} else { |
| |
return "error: ".($!+0)." tie (GDBM) Failed"; |
| |
} |
| |
} |
| |
|
| |
} |
| |
#--------------------- Request Handlers -------------------------------------------- |
| |
# |
| |
# By convention each request handler registers itself prior to the sub |
| |
# declaration: |
| |
# |
| |
|
| |
#++ |
| |
# |
| |
# Handles ping requests. |
| |
# Parameters: |
| |
# $cmd - the actual keyword that invoked us. |
| |
# $tail - the tail of the request that invoked us. |
| |
# $replyfd- File descriptor connected to the client |
| |
# Implicit Inputs: |
| |
# $currenthostid - Global variable that carries the name of the host we are |
| |
# known as. |
| |
# Returns: |
| |
# 1 - Ok to continue processing. |
| |
# 0 - Program should exit. |
| |
# Side effects: |
| |
# Reply information is sent to the client. |
| |
sub ping_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
Debug("$cmd $tail $client .. $currenthostid:"); |
| |
|
| |
Reply( $client,\$currenthostid,"$cmd:$tail"); |
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("ping", \&ping_handler, 0, 1, 1); # Ping unencoded, client or manager. |
| |
|
| |
#++ |
| |
# |
| |
# Handles pong requests. Pong replies with our current host id, and |
| |
# the results of a ping sent to us via our lonc. |
| |
# |
| |
# Parameters: |
| |
# $cmd - the actual keyword that invoked us. |
| |
# $tail - the tail of the request that invoked us. |
| |
# $replyfd- File descriptor connected to the client |
| |
# Implicit Inputs: |
| |
# $currenthostid - Global variable that carries the name of the host we are |
| |
# connected to. |
| |
# Returns: |
| |
# 1 - Ok to continue processing. |
| |
# 0 - Program should exit. |
| |
# Side effects: |
| |
# Reply information is sent to the client. |
| |
sub pong_handler { |
| |
my ($cmd, $tail, $replyfd) = @_; |
| |
|
| |
my $reply=&Apache::lonnet::reply("ping",$clientname); |
| |
&Reply( $replyfd, "$currenthostid:$reply\n", "$cmd:$tail"); |
| |
return 1; |
| |
} |
| |
®ister_handler("pong", \&pong_handler, 0, 1, 1); # Pong unencoded, client or manager |
| |
|
| |
#++ |
| |
# Called to establish an encrypted session key with the remote client. |
| |
# Note that with secure lond, in most cases this function is never |
| |
# invoked. Instead, the secure session key is established either |
| |
# via a local file that's locked down tight and only lives for a short |
| |
# time, or via an ssl tunnel...and is generated from a bunch-o-random |
| |
# bits from /dev/urandom, rather than the predictable pattern used by |
| |
# by this sub. This sub is only used in the old-style insecure |
| |
# key negotiation. |
| |
# Parameters: |
| |
# $cmd - the actual keyword that invoked us. |
| |
# $tail - the tail of the request that invoked us. |
| |
# $replyfd- File descriptor connected to the client |
| |
# Implicit Inputs: |
| |
# $currenthostid - Global variable that carries the name of the host |
| |
# known as. |
| |
# $clientname - Global variable that carries the name of the host we're connected to. |
| |
# Returns: |
| |
# 1 - Ok to continue processing. |
| |
# 0 - Program should exit. |
| |
# Implicit Outputs: |
| |
# Reply information is sent to the client. |
| |
# $cipher is set with a reference to a new IDEA encryption object. |
| |
# |
| |
sub establish_key_handler { |
| |
my ($cmd, $tail, $replyfd) = @_; |
| |
|
| |
my $buildkey=time.$$.int(rand 100000); |
| |
$buildkey=~tr/1-6/A-F/; |
| |
$buildkey=int(rand 100000).$buildkey.int(rand 100000); |
| |
my $key=$currenthostid.$clientname; |
| |
$key=~tr/a-z/A-Z/; |
| |
$key=~tr/G-P/0-9/; |
| |
$key=~tr/Q-Z/0-9/; |
| |
$key=$key.$buildkey.$key.$buildkey.$key.$buildkey; |
| |
$key=substr($key,0,32); |
| |
my $cipherkey=pack("H32",$key); |
| |
$cipher=new IDEA $cipherkey; |
| |
&Reply($replyfd, \$buildkey, "$cmd:$tail"); |
| |
|
| |
return 1; |
| |
|
| |
} |
| |
®ister_handler("ekey", \&establish_key_handler, 0, 1,1); |
| |
|
| |
# Handler for the load command. Returns the current system load average |
| |
# to the requestor. |
| |
# |
| |
# Parameters: |
| |
# $cmd - the actual keyword that invoked us. |
| |
# $tail - the tail of the request that invoked us. |
| |
# $replyfd- File descriptor connected to the client |
| |
# Implicit Inputs: |
| |
# $currenthostid - Global variable that carries the name of the host |
| |
# known as. |
| |
# $clientname - Global variable that carries the name of the host we're connected to. |
| |
# Returns: |
| |
# 1 - Ok to continue processing. |
| |
# 0 - Program should exit. |
| |
# Side effects: |
| |
# Reply information is sent to the client. |
| |
sub load_handler { |
| |
my ($cmd, $tail, $replyfd) = @_; |
| |
|
| |
|
| |
|
| |
# Get the load average from /proc/loadavg and calculate it as a percentage of |
| |
# the allowed load limit as set by the perl global variable lonLoadLim |
| |
|
| |
my $loadavg; |
| |
my $loadfile=IO::File->new('/proc/loadavg'); |
| |
|
| |
$loadavg=<$loadfile>; |
| |
$loadavg =~ s/\s.*//g; # Extract the first field only. |
| |
|
| |
my $loadpercent=100*$loadavg/$perlvar{'lonLoadLim'}; |
| |
|
| |
&Reply( $replyfd, \$loadpercent, "$cmd:$tail"); |
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("load", \&load_handler, 0, 1, 0); |
| |
|
| |
# |
| |
# Process the userload request. This sub returns to the client the current |
| |
# user load average. It can be invoked either by clients or managers. |
| |
# |
| |
# Parameters: |
| |
# $cmd - the actual keyword that invoked us. |
| |
# $tail - the tail of the request that invoked us. |
| |
# $replyfd- File descriptor connected to the client |
| |
# Implicit Inputs: |
| |
# $currenthostid - Global variable that carries the name of the host |
| |
# known as. |
| |
# $clientname - Global variable that carries the name of the host we're connected to. |
| |
# Returns: |
| |
# 1 - Ok to continue processing. |
| |
# 0 - Program should exit |
| |
# Implicit inputs: |
| |
# whatever the userload() function requires. |
| |
# Implicit outputs: |
| |
# the reply is written to the client. |
| |
# |
| |
sub user_load_handler { |
| |
my ($cmd, $tail, $replyfd) = @_; |
| |
|
| |
my $userloadpercent=&Apache::lonnet::userload(); |
| |
&Reply($replyfd, \$userloadpercent, "$cmd:$tail"); |
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("userload", \&user_load_handler, 0, 1, 0); |
| |
|
| |
# Process a request for the authorization type of a user: |
| |
# (userauth). |
| |
# |
| |
# Parameters: |
| |
# $cmd - the actual keyword that invoked us. |
| |
# $tail - the tail of the request that invoked us. |
| |
# $replyfd- File descriptor connected to the client |
| |
# Returns: |
| |
# 1 - Ok to continue processing. |
| |
# 0 - Program should exit |
| |
# Implicit outputs: |
| |
# The user authorization type is written to the client. |
| |
# |
| |
sub user_authorization_type { |
| |
my ($cmd, $tail, $replyfd) = @_; |
| |
|
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
# Pull the domain and username out of the command tail. |
| |
# and call get_auth_type to determine the authentication type. |
| |
|
| |
my ($udom,$uname)=split(/:/,$tail); |
| |
my $result = &get_auth_type($udom, $uname); |
| |
if($result eq "nouser") { |
| |
&Failure( $replyfd, "unknown_user\n", $userinput); |
| |
} else { |
| |
# |
| |
# We only want to pass the second field from get_auth_type |
| |
# for ^krb.. otherwise we'll be handing out the encrypted |
| |
# password for internals e.g. |
| |
# |
| |
my ($type,$otherinfo) = split(/:/,$result); |
| |
if($type =~ /^krb/) { |
| |
$type = $result; |
| |
} else { |
| |
$type .= ':'; |
| |
} |
| |
&Reply( $replyfd, \$type, $userinput); |
| |
} |
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("currentauth", \&user_authorization_type, 1, 1, 0); |
| |
|
| |
# Process a request by a manager to push a hosts or domain table |
| |
# to us. We pick apart the command and pass it on to the subs |
| |
# that already exist to do this. |
| |
# |
| |
# Parameters: |
| |
# $cmd - the actual keyword that invoked us. |
| |
# $tail - the tail of the request that invoked us. |
| |
# $client - File descriptor connected to the client |
| |
# Returns: |
| |
# 1 - Ok to continue processing. |
| |
# 0 - Program should exit |
| |
# Implicit Output: |
| |
# a reply is written to the client. |
| |
sub push_file_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
&Debug("In push file handler"); |
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
# At this time we only know that the IP of our partner is a valid manager |
| |
# the code below is a hook to do further authentication (e.g. to resolve |
| |
# spoofing). |
| |
|
| |
my $cert = &GetCertificate($userinput); |
| |
if(&ValidManager($cert)) { |
| |
&Debug("Valid manager: $client"); |
| |
|
| |
# Now presumably we have the bona fides of both the peer host and the |
| |
# process making the request. |
| |
|
| |
my $reply = &PushFile($userinput); |
| |
&Reply($client, \$reply, $userinput); |
| |
|
| |
} else { |
| |
&logthis("push_file_handler $client is not valid"); |
| |
&Failure( $client, "refused\n", $userinput); |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("pushfile", \&push_file_handler, 1, 0, 1); |
| |
|
| |
# The du_handler routine should be considered obsolete and is retained |
| |
# for communication with legacy servers. Please see the du2_handler. |
| |
# |
| |
# du - list the disk usage of a directory recursively. |
| |
# |
| |
# note: stolen code from the ls file handler |
| |
# under construction by Rick Banghart |
| |
# . |
| |
# Parameters: |
| |
# $cmd - The command that dispatched us (du). |
| |
# $ududir - The directory path to list... I'm not sure what this |
| |
# is relative as things like ls:. return e.g. |
| |
# no_such_dir. |
| |
# $client - Socket open on the client. |
| |
# Returns: |
| |
# 1 - indicating that the daemon should not disconnect. |
| |
# Side Effects: |
| |
# The reply is written to $client. |
| |
# |
| |
sub du_handler { |
| |
my ($cmd, $ududir, $client) = @_; |
| |
($ududir) = split(/:/,$ududir); # Make 'telnet' testing easier. |
| |
my $userinput = "$cmd:$ududir"; |
| |
|
| |
if ($ududir=~/\.\./ || $ududir!~m|^/home/httpd/|) { |
| |
&Failure($client,"refused\n","$cmd:$ududir"); |
| |
return 1; |
| |
} |
| |
# Since $ududir could have some nasties in it, |
| |
# we will require that ududir is a valid |
| |
# directory. Just in case someone tries to |
| |
# slip us a line like .;(cd /home/httpd rm -rf*) |
| |
# etc. |
| |
# |
| |
if (-d $ududir) { |
| |
my $total_size=0; |
| |
my $code=sub { |
| |
if ($_=~/\.\d+\./) { return;} |
| |
if ($_=~/\.meta$/) { return;} |
| |
if (-d $_) { return;} |
| |
$total_size+=(stat($_))[7]; |
| |
}; |
| |
chdir($ududir); |
| |
find($code,$ududir); |
| |
$total_size=int($total_size/1024); |
| |
&Reply($client,\$total_size,"$cmd:$ududir"); |
| |
} else { |
| |
&Failure($client, "bad_directory:$ududir\n","$cmd:$ududir"); |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("du", \&du_handler, 0, 1, 0); |
| |
|
| |
# Please also see the du_handler, which is obsoleted by du2. |
| |
# du2_handler differs from du_handler in that required path to directory |
| |
# provided by &propath() is prepended in the handler instead of on the |
| |
# client side. |
| |
# |
| |
# du2 - list the disk usage of a directory recursively. |
| |
# |
| |
# Parameters: |
| |
# $cmd - The command that dispatched us (du). |
| |
# $tail - The tail of the request that invoked us. |
| |
# $tail is a : separated list of the following: |
| |
# - $ududir - directory path to list (before prepending) |
| |
# - $getpropath = 1 if &propath() should prepend |
| |
# - $uname - username to use for &propath or user dir |
| |
# - $udom - domain to use for &propath or user dir |
| |
# All are escaped. |
| |
# $client - Socket open on the client. |
| |
# Returns: |
| |
# 1 - indicating that the daemon should not disconnect. |
| |
# Side Effects: |
| |
# The reply is written to $client. |
| |
# |
| |
|
| |
sub du2_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
my ($ududir,$getpropath,$uname,$udom) = map { &unescape($_) } (split(/:/, $tail)); |
| |
my $userinput = "$cmd:$tail"; |
| |
if (($ududir=~/\.\./) || (($ududir!~m|^/home/httpd/|) && (!$getpropath))) { |
| |
&Failure($client,"refused\n","$cmd:$tail"); |
| |
return 1; |
| |
} |
| |
if ($getpropath) { |
| |
if (($uname =~ /^$LONCAPA::match_name$/) && ($udom =~ /^$LONCAPA::match_domain$/)) { |
| |
$ududir = &propath($udom,$uname).'/'.$ududir; |
| |
} else { |
| |
&Failure($client,"refused\n","$cmd:$tail"); |
| |
return 1; |
| |
} |
| |
} |
| |
# Since $ududir could have some nasties in it, |
| |
# we will require that ududir is a valid |
| |
# directory. Just in case someone tries to |
| |
# slip us a line like .;(cd /home/httpd rm -rf*) |
| |
# etc. |
| |
# |
| |
if (-d $ududir) { |
| |
my $total_size=0; |
| |
my $code=sub { |
| |
if ($_=~/\.\d+\./) { return;} |
| |
if ($_=~/\.meta$/) { return;} |
| |
if (-d $_) { return;} |
| |
$total_size+=(stat($_))[7]; |
| |
}; |
| |
chdir($ududir); |
| |
find($code,$ududir); |
| |
$total_size=int($total_size/1024); |
| |
&Reply($client,\$total_size,"$cmd:$ududir"); |
| |
} else { |
| |
&Failure($client, "bad_directory:$ududir\n","$cmd:$tail"); |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("du2", \&du2_handler, 0, 1, 0); |
| |
|
| |
# |
| |
# The ls_handler routine should be considered obsolete and is retained |
| |
# for communication with legacy servers. Please see the ls3_handler. |
| |
# |
| |
# ls - list the contents of a directory. For each file in the |
| |
# selected directory the filename followed by the full output of |
| |
# the stat function is returned. The returned info for each |
| |
# file are separated by ':'. The stat fields are separated by &'s. |
| |
# |
| |
# If the requested path contains /../ or is: |
| |
# |
| |
# 1. for a directory, and the path does not begin with one of: |
| |
# (a) /home/httpd/html/res/<domain> |
| |
# (b) /home/httpd/html/userfiles/ |
| |
# (c) /home/httpd/lonUsers/<domain>/<1>/<2>/<3>/<username>/userfiles |
| |
# or is: |
| |
# |
| |
# 2. for a file, and the path (after prepending) does not begin with one of: |
| |
# (a) /home/httpd/lonUsers/<domain>/<1>/<2>/<3>/<username>/ |
| |
# (b) /home/httpd/html/res/<domain>/<username>/ |
| |
# (c) /home/httpd/html/userfiles/<domain>/<username>/ |
| |
# |
| |
# the response will be "refused". |
| |
# |
| |
# Parameters: |
| |
# $cmd - The command that dispatched us (ls). |
| |
# $ulsdir - The directory path to list... I'm not sure what this |
| |
# is relative as things like ls:. return e.g. |
| |
# no_such_dir. |
| |
# $client - Socket open on the client. |
| |
# Returns: |
| |
# 1 - indicating that the daemon should not disconnect. |
| |
# Side Effects: |
| |
# The reply is written to $client. |
| |
# |
| |
sub ls_handler { |
| |
# obsoleted by ls2_handler |
| |
my ($cmd, $ulsdir, $client) = @_; |
| |
|
| |
my $userinput = "$cmd:$ulsdir"; |
| |
|
| |
my $obs; |
| |
my $rights; |
| |
my $ulsout=''; |
| |
my $ulsfn; |
| |
if ($ulsdir =~m{/\.\./}) { |
| |
&Failure($client,"refused\n",$userinput); |
| |
return 1; |
| |
} |
| |
if (-e $ulsdir) { |
| |
if(-d $ulsdir) { |
| |
unless (($ulsdir =~ m{^/home/httpd/html/(res/$LONCAPA::match_domain|userfiles/)}) || |
| |
($ulsdir =~ m{^/home/httpd/lonUsers/$LONCAPA::match_domain(?:/[\w\-.@]){3}/$LONCAPA::match_name/userfiles})) { |
| |
&Failure($client,"refused\n",$userinput); |
| |
return 1; |
| |
} |
| |
if (opendir(LSDIR,$ulsdir)) { |
| |
while ($ulsfn=readdir(LSDIR)) { |
| |
undef($obs); |
| |
undef($rights); |
| |
my @ulsstats=stat($ulsdir.'/'.$ulsfn); |
| |
#We do some obsolete checking here |
| |
if(-e $ulsdir.'/'.$ulsfn.".meta") { |
| |
open(FILE, $ulsdir.'/'.$ulsfn.".meta"); |
| |
my @obsolete=<FILE>; |
| |
foreach my $obsolete (@obsolete) { |
| |
if($obsolete =~ m/(<obsolete>)(on|1)/) { $obs = 1; } |
| |
if($obsolete =~ m|(<copyright>)(default)|) { $rights = 1; } |
| |
} |
| |
} |
| |
$ulsout.=$ulsfn.'&'.join('&',@ulsstats); |
| |
if($obs eq '1') { $ulsout.="&1"; } |
| |
else { $ulsout.="&0"; } |
| |
if($rights eq '1') { $ulsout.="&1:"; } |
| |
else { $ulsout.="&0:"; } |
| |
} |
| |
closedir(LSDIR); |
| |
} |
| |
} else { |
| |
unless (($ulsdir =~ m{^/home/httpd/lonUsers/$LONCAPA::match_domain(?:/[\w\-.@]){3}/$LONCAPA::match_name/}) || |
| |
($ulsdir =~ m{^/home/httpd/html/(?:res|userfiles)/$LONCAPA::match_domain/$LONCAPA::match_name/})) { |
| |
&Failure($client,"refused\n",$userinput); |
| |
return 1; |
| |
} |
| |
my @ulsstats=stat($ulsdir); |
| |
$ulsout.=$ulsfn.'&'.join('&',@ulsstats).':'; |
| |
} |
| |
} else { |
| |
$ulsout='no_such_dir'; |
| |
} |
| |
if ($ulsout eq '') { $ulsout='empty'; } |
| |
&Reply($client, \$ulsout, $userinput); # This supports debug logging. |
| |
|
| |
return 1; |
| |
|
| |
} |
| |
®ister_handler("ls", \&ls_handler, 0, 1, 0); |
| |
|
| |
# The ls2_handler routine should be considered obsolete and is retained |
| |
# for communication with legacy servers. Please see the ls3_handler. |
| |
# Please also see the ls_handler, which was itself obsoleted by ls2. |
| |
# ls2_handler differs from ls_handler in that it escapes its return |
| |
# values before concatenating them together with ':'s. |
| |
# |
| |
# ls2 - list the contents of a directory. For each file in the |
| |
# selected directory the filename followed by the full output of |
| |
# the stat function is returned. The returned info for each |
| |
# file are separated by ':'. The stat fields are separated by &'s. |
| |
# |
| |
# If the requested path contains /../ or is: |
| |
# |
| |
# 1. for a directory, and the path does not begin with one of: |
| |
# (a) /home/httpd/html/res/<domain> |
| |
# (b) /home/httpd/html/userfiles/ |
| |
# (c) /home/httpd/lonUsers/<domain>/<1>/<2>/<3>/<username>/userfiles |
| |
# or is: |
| |
# |
| |
# 2. for a file, and the path (after prepending) does not begin with one of: |
| |
# (a) /home/httpd/lonUsers/<domain>/<1>/<2>/<3>/<username>/ |
| |
# (b) /home/httpd/html/res/<domain>/<username>/ |
| |
# (c) /home/httpd/html/userfiles/<domain>/<username>/ |
| |
# |
| |
# the response will be "refused". |
| |
# |
| |
# Parameters: |
| |
# $cmd - The command that dispatched us (ls). |
| |
# $ulsdir - The directory path to list... I'm not sure what this |
| |
# is relative as things like ls:. return e.g. |
| |
# no_such_dir. |
| |
# $client - Socket open on the client. |
| |
# Returns: |
| |
# 1 - indicating that the daemon should not disconnect. |
| |
# Side Effects: |
| |
# The reply is written to $client. |
| |
# |
| |
sub ls2_handler { |
| |
my ($cmd, $ulsdir, $client) = @_; |
| |
|
| |
my $userinput = "$cmd:$ulsdir"; |
| |
|
| |
my $obs; |
| |
my $rights; |
| |
my $ulsout=''; |
| |
my $ulsfn; |
| |
if ($ulsdir =~m{/\.\./}) { |
| |
&Failure($client,"refused\n",$userinput); |
| |
return 1; |
| |
} |
| |
if (-e $ulsdir) { |
| |
if(-d $ulsdir) { |
| |
unless (($ulsdir =~ m{^/home/httpd/html/(res/$LONCAPA::match_domain|userfiles/)}) || |
| |
($ulsdir =~ m{^/home/httpd/lonUsers/$LONCAPA::match_domain(?:/[\w\-.@]){3}/$LONCAPA::match_name/userfiles})) { |
| |
&Failure($client,"refused\n","$userinput"); |
| |
return 1; |
| |
} |
| |
if (opendir(LSDIR,$ulsdir)) { |
| |
while ($ulsfn=readdir(LSDIR)) { |
| |
undef($obs); |
| |
undef($rights); |
| |
my @ulsstats=stat($ulsdir.'/'.$ulsfn); |
| |
#We do some obsolete checking here |
| |
if(-e $ulsdir.'/'.$ulsfn.".meta") { |
| |
open(FILE, $ulsdir.'/'.$ulsfn.".meta"); |
| |
my @obsolete=<FILE>; |
| |
foreach my $obsolete (@obsolete) { |
| |
if($obsolete =~ m/(<obsolete>)(on|1)/) { $obs = 1; } |
| |
if($obsolete =~ m|(<copyright>)(default)|) { |
| |
$rights = 1; |
| |
} |
| |
} |
| |
} |
| |
my $tmp = $ulsfn.'&'.join('&',@ulsstats); |
| |
if ($obs eq '1') { $tmp.="&1"; } else { $tmp.="&0"; } |
| |
if ($rights eq '1') { $tmp.="&1"; } else { $tmp.="&0"; } |
| |
$ulsout.= &escape($tmp).':'; |
| |
} |
| |
closedir(LSDIR); |
| |
} |
| |
} else { |
| |
unless (($ulsdir =~ m{^/home/httpd/lonUsers/$LONCAPA::match_domain(?:/[\w\-.@]){3}/$LONCAPA::match_name/}) || |
| |
($ulsdir =~ m{^/home/httpd/html/(?:res|userfiles)/$LONCAPA::match_domain/$LONCAPA::match_name/})) { |
| |
&Failure($client,"refused\n",$userinput); |
| |
return 1; |
| |
} |
| |
my @ulsstats=stat($ulsdir); |
| |
$ulsout.=$ulsfn.'&'.join('&',@ulsstats).':'; |
| |
} |
| |
} else { |
| |
$ulsout='no_such_dir'; |
| |
} |
| |
if ($ulsout eq '') { $ulsout='empty'; } |
| |
&Reply($client, \$ulsout, $userinput); # This supports debug logging. |
| |
return 1; |
| |
} |
| |
®ister_handler("ls2", \&ls2_handler, 0, 1, 0); |
| |
# |
| |
# ls3 - list the contents of a directory. For each file in the |
| |
# selected directory the filename followed by the full output of |
| |
# the stat function is returned. The returned info for each |
| |
# file are separated by ':'. The stat fields are separated by &'s. |
| |
# |
| |
# If the requested path (after prepending) contains /../ or is: |
| |
# |
| |
# 1. for a directory, and the path does not begin with one of: |
| |
# (a) /home/httpd/html/res/<domain> |
| |
# (b) /home/httpd/html/userfiles/ |
| |
# (c) /home/httpd/lonUsers/<domain>/<1>/<2>/<3>/<username>/userfiles |
| |
# (d) /home/httpd/html/priv/<domain> and client is the homeserver |
| |
# |
| |
# or is: |
| |
# |
| |
# 2. for a file, and the path (after prepending) does not begin with one of: |
| |
# (a) /home/httpd/lonUsers/<domain>/<1>/<2>/<3>/<username>/ |
| |
# (b) /home/httpd/html/res/<domain>/<username>/ |
| |
# (c) /home/httpd/html/userfiles/<domain>/<username>/ |
| |
# (d) /home/httpd/html/priv/<domain>/<username>/ and client is the homeserver |
| |
# |
| |
# the response will be "refused". |
| |
# |
| |
# Parameters: |
| |
# $cmd - The command that dispatched us (ls). |
| |
# $tail - The tail of the request that invoked us. |
| |
# $tail is a : separated list of the following: |
| |
# - $ulsdir - directory path to list (before prepending) |
| |
# - $getpropath = 1 if &propath() should prepend |
| |
# - $getuserdir = 1 if path to user dir in lonUsers should |
| |
# prepend |
| |
# - $alternate_root - path to prepend |
| |
# - $uname - username to use for &propath or user dir |
| |
# - $udom - domain to use for &propath or user dir |
| |
# All of these except $getpropath and &getuserdir are escaped. |
| |
# no_such_dir. |
| |
# $client - Socket open on the client. |
| |
# Returns: |
| |
# 1 - indicating that the daemon should not disconnect. |
| |
# Side Effects: |
| |
# The reply is written to $client. |
| |
# |
| |
|
| |
sub ls3_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
my ($ulsdir,$getpropath,$getuserdir,$alternate_root,$uname,$udom) = |
| |
split(/:/,$tail); |
| |
if (defined($ulsdir)) { |
| |
$ulsdir = &unescape($ulsdir); |
| |
} |
| |
if (defined($alternate_root)) { |
| |
$alternate_root = &unescape($alternate_root); |
| |
} |
| |
if (defined($uname)) { |
| |
$uname = &unescape($uname); |
| |
} |
| |
if (defined($udom)) { |
| |
$udom = &unescape($udom); |
| |
} |
| |
|
| |
my $dir_root = $perlvar{'lonDocRoot'}; |
| |
if (($getpropath) || ($getuserdir)) { |
| |
if (($uname =~ /^$LONCAPA::match_name$/) && ($udom =~ /^$LONCAPA::match_domain$/)) { |
| |
$dir_root = &propath($udom,$uname); |
| |
$dir_root =~ s/\/$//; |
| |
} else { |
| |
&Failure($client,"refused\n",$userinput); |
| |
return 1; |
| |
} |
| |
} elsif ($alternate_root ne '') { |
| |
$dir_root = $alternate_root; |
| |
} |
| |
if (($dir_root ne '') && ($dir_root ne '/')) { |
| |
if ($ulsdir =~ /^\//) { |
| |
$ulsdir = $dir_root.$ulsdir; |
| |
} else { |
| |
$ulsdir = $dir_root.'/'.$ulsdir; |
| |
} |
| |
} |
| |
if ($ulsdir =~m{/\.\./}) { |
| |
&Failure($client,"refused\n",$userinput); |
| |
return 1; |
| |
} |
| |
my $islocal; |
| |
my @machine_ids = &Apache::lonnet::current_machine_ids(); |
| |
if (grep(/^\Q$clientname\E$/,@machine_ids)) { |
| |
$islocal = 1; |
| |
} |
| |
my $obs; |
| |
my $rights; |
| |
my $ulsout=''; |
| |
my $ulsfn; |
| |
if (-e $ulsdir) { |
| |
if(-d $ulsdir) { |
| |
unless (($getpropath) || ($getuserdir) || |
| |
($ulsdir =~ m{^/home/httpd/html/(res/$LONCAPA::match_domain|userfiles/)}) || |
| |
($ulsdir =~ m{^/home/httpd/lonUsers/$LONCAPA::match_domain(?:/[\w\-.@]){3}/$LONCAPA::match_name/userfiles}) || |
| |
(($ulsdir =~ m{^/home/httpd/html/priv/$LONCAPA::match_domain}) && ($islocal))) { |
| |
&Failure($client,"refused\n",$userinput); |
| |
return 1; |
| |
} |
| |
if (opendir(LSDIR,$ulsdir)) { |
| |
while ($ulsfn=readdir(LSDIR)) { |
| |
undef($obs); |
| |
undef($rights); |
| |
my @ulsstats=stat($ulsdir.'/'.$ulsfn); |
| |
#We do some obsolete checking here |
| |
if(-e $ulsdir.'/'.$ulsfn.".meta") { |
| |
open(FILE, $ulsdir.'/'.$ulsfn.".meta"); |
| |
my @obsolete=<FILE>; |
| |
foreach my $obsolete (@obsolete) { |
| |
if($obsolete =~ m/(<obsolete>)(on|1)/) { $obs = 1; } |
| |
if($obsolete =~ m|(<copyright>)(default)|) { |
| |
$rights = 1; |
| |
} |
| |
} |
| |
} |
| |
my $tmp = $ulsfn.'&'.join('&',@ulsstats); |
| |
if ($obs eq '1') { $tmp.="&1"; } else { $tmp.="&0"; } |
| |
if ($rights eq '1') { $tmp.="&1"; } else { $tmp.="&0"; } |
| |
$ulsout.= &escape($tmp).':'; |
| |
} |
| |
closedir(LSDIR); |
| |
} |
| |
} else { |
| |
unless (($getpropath) || ($getuserdir) || |
| |
($ulsdir =~ m{^/home/httpd/lonUsers/$LONCAPA::match_domain(?:/[\w\-.@]){3}/$LONCAPA::match_name/}) || |
| |
($ulsdir =~ m{^/home/httpd/html/(?:res|userfiles)/$LONCAPA::match_domain/$LONCAPA::match_name/}) || |
| |
(($ulsdir =~ m{^/home/httpd/html/priv/$LONCAPA::match_domain/$LONCAPA::match_name/}) && ($islocal))) { |
| |
&Failure($client,"refused\n",$userinput); |
| |
return 1; |
| |
} |
| |
my @ulsstats=stat($ulsdir); |
| |
$ulsout.=$ulsfn.'&'.join('&',@ulsstats).':'; |
| |
} |
| |
} else { |
| |
$ulsout='no_such_dir'; |
| |
} |
| |
if ($ulsout eq '') { $ulsout='empty'; } |
| |
&Reply($client, \$ulsout, $userinput); # This supports debug logging. |
| |
return 1; |
| |
} |
| |
®ister_handler("ls3", \&ls3_handler, 0, 1, 0); |
| |
|
| |
sub read_lonnet_global { |
| |
my ($cmd,$tail,$client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
my $requested = &Apache::lonnet::thaw_unescape($tail); |
| |
my $result; |
| |
my %packagevars = ( |
| |
spareid => \%Apache::lonnet::spareid, |
| |
perlvar => \%Apache::lonnet::perlvar, |
| |
); |
| |
my %limit_to = ( |
| |
perlvar => { |
| |
lonOtherAuthen => 1, |
| |
lonBalancer => 1, |
| |
lonVersion => 1, |
| |
lonSysEMail => 1, |
| |
lonHostID => 1, |
| |
lonRole => 1, |
| |
lonDefDomain => 1, |
| |
lonLoadLim => 1, |
| |
lonUserLoadLim => 1, |
| |
} |
| |
); |
| |
if (ref($requested) eq 'HASH') { |
| |
foreach my $what (keys(%{$requested})) { |
| |
my $response; |
| |
my $items = {}; |
| |
if (exists($packagevars{$what})) { |
| |
if (ref($limit_to{$what}) eq 'HASH') { |
| |
foreach my $varname (keys(%{$packagevars{$what}})) { |
| |
if ($limit_to{$what}{$varname}) { |
| |
$items->{$varname} = $packagevars{$what}{$varname}; |
| |
} |
| |
} |
| |
} else { |
| |
$items = $packagevars{$what}; |
| |
} |
| |
if ($what eq 'perlvar') { |
| |
if (!exists($packagevars{$what}{'lonBalancer'})) { |
| |
if ($dist =~ /^(centos|rhes|fedora|scientific|oracle|rocky|alma)/) { |
| |
my $othervarref=LONCAPA::Configuration::read_conf('httpd.conf'); |
| |
if (ref($othervarref) eq 'HASH') { |
| |
$items->{'lonBalancer'} = $othervarref->{'lonBalancer'}; |
| |
} |
| |
} |
| |
} |
| |
} |
| |
$response = &Apache::lonnet::freeze_escape($items); |
| |
} |
| |
$result .= &escape($what).'='.$response.'&'; |
| |
} |
| |
} |
| |
$result =~ s/\&$//; |
| |
&Reply($client,\$result,$userinput); |
| |
return 1; |
| |
} |
| |
®ister_handler("readlonnetglobal", \&read_lonnet_global, 0, 1, 0); |
| |
|
| |
sub server_devalidatecache_handler { |
| |
my ($cmd,$tail,$client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
my $items = &unescape($tail); |
| |
my @cached = split(/\&/,$items); |
| |
foreach my $key (@cached) { |
| |
if ($key =~ /:/) { |
| |
my ($name,$id) = map { &unescape($_); } split(/:/,$key); |
| |
&Apache::lonnet::devalidate_cache_new($name,$id); |
| |
} |
| |
} |
| |
my $result = 'ok'; |
| |
&Reply($client,\$result,$userinput); |
| |
return 1; |
| |
} |
| |
®ister_handler("devalidatecache", \&server_devalidatecache_handler, 0, 1, 0); |
| |
|
| |
sub server_timezone_handler { |
| |
my ($cmd,$tail,$client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
my $timezone; |
| |
my $clockfile = '/etc/sysconfig/clock'; # Fedora/CentOS/SuSE |
| |
my $tzfile = '/etc/timezone'; # Debian/Ubuntu |
| |
if (-e $clockfile) { |
| |
if (open(my $fh,"<$clockfile")) { |
| |
while (<$fh>) { |
| |
next if (/^[\#\s]/); |
| |
if (/^(?:TIME)?ZONE\s*=\s*['"]?\s*([\w\/]+)/) { |
| |
$timezone = $1; |
| |
last; |
| |
} |
| |
} |
| |
close($fh); |
| |
} |
| |
} elsif (-e $tzfile) { |
| |
if (open(my $fh,"<$tzfile")) { |
| |
$timezone = <$fh>; |
| |
close($fh); |
| |
chomp($timezone); |
| |
if ($timezone =~ m{^Etc/(\w+)$}) { |
| |
$timezone = $1; |
| |
} |
| |
} |
| |
} |
| |
&Reply($client,\$timezone,$userinput); # This supports debug logging. |
| |
return 1; |
| |
} |
| |
®ister_handler("servertimezone", \&server_timezone_handler, 0, 1, 0); |
| |
|
| |
sub server_loncaparev_handler { |
| |
my ($cmd,$tail,$client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
&Reply($client,\$perlvar{'lonVersion'},$userinput); |
| |
return 1; |
| |
} |
| |
®ister_handler("serverloncaparev", \&server_loncaparev_handler, 0, 1, 0); |
| |
|
| |
sub server_homeID_handler { |
| |
my ($cmd,$tail,$client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
&Reply($client,\$perlvar{'lonHostID'},$userinput); |
| |
return 1; |
| |
} |
| |
®ister_handler("serverhomeID", \&server_homeID_handler, 0, 1, 0); |
| |
|
| |
sub server_distarch_handler { |
| |
my ($cmd,$tail,$client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
my $reply = &distro_and_arch(); |
| |
&Reply($client,\$reply,$userinput); |
| |
return 1; |
| |
} |
| |
®ister_handler("serverdistarch", \&server_distarch_handler, 0, 1, 0); |
| |
|
| |
# Process a reinit request. Reinit requests that either |
| |
# lonc or lond be reinitialized so that an updated |
| |
# host.tab or domain.tab can be processed. |
| |
# |
| |
# Parameters: |
| |
# $cmd - the actual keyword that invoked us. |
| |
# $tail - the tail of the request that invoked us. |
| |
# $client - File descriptor connected to the client |
| |
# Returns: |
| |
# 1 - Ok to continue processing. |
| |
# 0 - Program should exit |
| |
# Implicit output: |
| |
# a reply is sent to the client. |
| |
# |
| |
sub reinit_process_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
my $cert = &GetCertificate($userinput); |
| |
if(&ValidManager($cert)) { |
| |
chomp($userinput); |
| |
my $reply = &ReinitProcess($userinput); |
| |
&Reply( $client, \$reply, $userinput); |
| |
} else { |
| |
&Failure( $client, "refused\n", $userinput); |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("reinit", \&reinit_process_handler, 1, 0, 1); |
| |
|
| |
# Process the editing script for a table edit operation. |
| |
# the editing operation must be encrypted and requested by |
| |
# a manager host. |
| |
# |
| |
# Parameters: |
| |
# $cmd - the actual keyword that invoked us. |
| |
# $tail - the tail of the request that invoked us. |
| |
# $client - File descriptor connected to the client |
| |
# Returns: |
| |
# 1 - Ok to continue processing. |
| |
# 0 - Program should exit |
| |
# Implicit output: |
| |
# a reply is sent to the client. |
| |
# |
| |
sub edit_table_handler { |
| |
my ($command, $tail, $client) = @_; |
| |
|
| |
my $userinput = "$command:$tail"; |
| |
|
| |
my $cert = &GetCertificate($userinput); |
| |
if(&ValidManager($cert)) { |
| |
my($filetype, $script) = split(/:/, $tail); |
| |
if (($filetype eq "hosts") || |
| |
($filetype eq "domain")) { |
| |
if($script ne "") { |
| |
&Reply($client, # BUGBUG - EditFile |
| |
&EditFile($userinput), # could fail. |
| |
$userinput); |
| |
} else { |
| |
&Failure($client,"refused\n",$userinput); |
| |
} |
| |
} else { |
| |
&Failure($client,"refused\n",$userinput); |
| |
} |
| |
} else { |
| |
&Failure($client,"refused\n",$userinput); |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("edit", \&edit_table_handler, 1, 0, 1); |
| |
|
| |
# |
| |
# Authenticate a user against the LonCAPA authentication |
| |
# database. Note that there are several authentication |
| |
# possibilities: |
| |
# - unix - The user can be authenticated against the unix |
| |
# password file. |
| |
# - internal - The user can be authenticated against a purely |
| |
# internal per user password file. |
| |
# - kerberos - The user can be authenticated against either a kerb4 or kerb5 |
| |
# ticket granting authority. |
| |
# - user - The person tailoring LonCAPA can supply a user authentication |
| |
# mechanism that is per system. |
| |
# |
| |
# Parameters: |
| |
# $cmd - The command that got us here. |
| |
# $tail - Tail of the command (remaining parameters). |
| |
# $client - File descriptor connected to client. |
| |
# Returns |
| |
# 0 - Requested to exit, caller should shut down. |
| |
# 1 - Continue processing. |
| |
# Implicit inputs: |
| |
# The authentication systems describe above have their own forms of implicit |
| |
# input into the authentication process that are described above. |
| |
# |
| |
sub authenticate_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
|
| |
# Regenerate the full input line |
| |
|
| |
my $userinput = $cmd.":".$tail; |
| |
|
| |
# udom - User's domain. |
| |
# uname - Username. |
| |
# upass - User's password. |
| |
# checkdefauth - Pass to validate_user() to try authentication |
| |
# with default auth type(s) if no user account. |
| |
# clientcancheckhost - Passed by clients with functionality in lonauth.pm |
| |
# to check if session can be hosted. |
| |
|
| |
my ($udom, $uname, $upass, $checkdefauth, $clientcancheckhost)=split(/:/,$tail); |
| |
&Debug(" Authenticate domain = $udom, user = $uname, password = $upass, checkdefauth = $checkdefauth"); |
| |
chomp($upass); |
| |
$upass=&unescape($upass); |
| |
|
| |
my $pwdcorrect = &validate_user($udom,$uname,$upass,$checkdefauth); |
| |
if($pwdcorrect) { |
| |
my $canhost = 1; |
| |
unless ($clientcancheckhost) { |
| |
my $uprimary_id = &Apache::lonnet::domain($udom,'primary'); |
| |
my $uint_dom = &Apache::lonnet::internet_dom($uprimary_id); |
| |
my @intdoms; |
| |
my $internet_names = &Apache::lonnet::get_internet_names($clientname); |
| |
if (ref($internet_names) eq 'ARRAY') { |
| |
@intdoms = @{$internet_names}; |
| |
} |
| |
unless ($uint_dom ne '' && grep(/^\Q$uint_dom\E$/,@intdoms)) { |
| |
my ($remote,$hosted); |
| |
my $remotesession = &get_usersession_config($udom,'remotesession'); |
| |
if (ref($remotesession) eq 'HASH') { |
| |
$remote = $remotesession->{'remote'}; |
| |
} |
| |
my $hostedsession = &get_usersession_config($clienthomedom,'hostedsession'); |
| |
if (ref($hostedsession) eq 'HASH') { |
| |
$hosted = $hostedsession->{'hosted'}; |
| |
} |
| |
my $loncaparev = $clientversion; |
| |
if ($loncaparev eq '') { |
| |
$loncaparev = $Apache::lonnet::loncaparevs{$clientname}; |
| |
} |
| |
$canhost = &Apache::lonnet::can_host_session($udom,$clientname, |
| |
$loncaparev, |
| |
$remote,$hosted); |
| |
} |
| |
} |
| |
if ($canhost) { |
| |
&Reply( $client, "authorized\n", $userinput); |
| |
} else { |
| |
&Reply( $client, "not_allowed_to_host\n", $userinput); |
| |
} |
| |
# |
| |
# Bad credentials: Failed to authorize |
| |
# |
| |
} else { |
| |
&Failure( $client, "non_authorized\n", $userinput); |
| |
} |
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("auth", \&authenticate_handler, 1, 1, 0); |
| |
|
| |
# |
| |
# Change a user's password. Note that this function is complicated by |
| |
# the fact that a user may be authenticated in more than one way: |
| |
# At present, we are not able to change the password for all types of |
| |
# authentication methods. Only for: |
| |
# unix - unix password or shadow passoword style authentication. |
| |
# local - Locally written authentication mechanism. |
| |
# For now, kerb4 and kerb5 password changes are not supported and result |
| |
# in an error. |
| |
# FUTURE WORK: |
| |
# Support kerberos passwd changes? |
| |
# Parameters: |
| |
# $cmd - The command that got us here. |
| |
# $tail - Tail of the command (remaining parameters). |
| |
# $client - File descriptor connected to client. |
| |
# Returns |
| |
# 0 - Requested to exit, caller should shut down. |
| |
# 1 - Continue processing. |
| |
# Implicit inputs: |
| |
# The authentication systems describe above have their own forms of implicit |
| |
# input into the authentication process that are described above. |
| |
sub change_password_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my $userinput = $cmd.":".$tail; # Reconstruct client's string. |
| |
|
| |
# |
| |
# udom - user's domain. |
| |
# uname - Username. |
| |
# upass - Current password. |
| |
# npass - New password. |
| |
# context - Context in which this was called |
| |
# (preferences or reset_by_email). |
| |
# lonhost - HostID of server where request originated |
| |
|
| |
my ($udom,$uname,$upass,$npass,$context,$lonhost)=split(/:/,$tail); |
| |
|
| |
$upass=&unescape($upass); |
| |
$npass=&unescape($npass); |
| |
&Debug("Trying to change password for $uname"); |
| |
|
| |
# First require that the user can be authenticated with their |
| |
# old password unless context was 'reset_by_email': |
| |
|
| |
my ($validated,$failure); |
| |
if ($context eq 'reset_by_email') { |
| |
if ($lonhost eq '') { |
| |
$failure = 'invalid_client'; |
| |
} else { |
| |
$validated = 1; |
| |
} |
| |
} else { |
| |
$validated = &validate_user($udom, $uname, $upass); |
| |
} |
| |
if($validated) { |
| |
my $realpasswd = &get_auth_type($udom, $uname); # Defined since authd. |
| |
my ($howpwd,$contentpwd)=split(/:/,$realpasswd); |
| |
my $notunique; |
| |
if ($howpwd eq 'internal') { |
| |
&Debug("internal auth"); |
| |
my $ncpass = &hash_passwd($udom,$npass); |
| |
my (undef,$method,@rest) = split(/!/,$contentpwd); |
| |
if ($method eq 'bcrypt') { |
| |
my %passwdconf = &Apache::lonnet::get_passwdconf($udom); |
| |
if (($passwdconf{'numsaved'}) && ($passwdconf{'numsaved'} =~ /^\d+$/)) { |
| |
my @oldpasswds; |
| |
my $userpath = &propath($udom,$uname); |
| |
my $fullpath = $userpath.'/oldpasswds'; |
| |
if (-d $userpath) { |
| |
my @oldfiles; |
| |
if (-e $fullpath) { |
| |
if (opendir(my $dir,$fullpath)) { |
| |
(@oldfiles) = grep(/^\d+$/,readdir($dir)); |
| |
closedir($dir); |
| |
} |
| |
if (@oldfiles) { |
| |
@oldfiles = sort { $b <=> $a } (@oldfiles); |
| |
my $numremoved = 0; |
| |
for (my $i=0; $i<@oldfiles; $i++) { |
| |
if ($i>=$passwdconf{'numsaved'}) { |
| |
if (-f "$fullpath/$oldfiles[$i]") { |
| |
if (unlink("$fullpath/$oldfiles[$i]")) { |
| |
$numremoved ++; |
| |
} |
| |
} |
| |
} elsif (open(my $fh,'<',"$fullpath/$oldfiles[$i]")) { |
| |
while (my $line = <$fh>) { |
| |
push(@oldpasswds,$line); |
| |
} |
| |
close($fh); |
| |
} |
| |
} |
| |
if ($numremoved) { |
| |
&logthis("unlinked $numremoved old password files for $uname:$udom"); |
| |
} |
| |
} |
| |
} |
| |
push(@oldpasswds,$contentpwd); |
| |
foreach my $item (@oldpasswds) { |
| |
my (undef,$method,@rest) = split(/!/,$item); |
| |
if ($method eq 'bcrypt') { |
| |
my $result = &hash_passwd($udom,$npass,@rest); |
| |
if ($result eq $item) { |
| |
$notunique = 1; |
| |
last; |
| |
} |
| |
} |
| |
} |
| |
unless ($notunique) { |
| |
unless (-e $fullpath) { |
| |
if (&mkpath("$fullpath/")) { |
| |
chmod(0700,$fullpath); |
| |
} |
| |
} |
| |
if (-d $fullpath) { |
| |
my $now = time; |
| |
if (open(my $fh,'>',"$fullpath/$now")) { |
| |
print $fh $contentpwd; |
| |
close($fh); |
| |
chmod(0400,"$fullpath/$now"); |
| |
} |
| |
} |
| |
} |
| |
} |
| |
} |
| |
} |
| |
if ($notunique) { |
| |
my $msg="Result of password change for $uname:$udom - password matches one used before"; |
| |
if ($lonhost) { |
| |
$msg .= " - request originated from: $lonhost"; |
| |
} |
| |
&logthis($msg); |
| |
&Reply($client, "prioruse\n", $userinput); |
| |
} elsif (&rewrite_password_file($udom, $uname, "internal:$ncpass")) { |
| |
my $msg="Result of password change for $uname: pwchange_success"; |
| |
if ($lonhost) { |
| |
$msg .= " - request originated from: $lonhost"; |
| |
} |
| |
&logthis($msg); |
| |
&update_passwd_history($uname,$udom,$howpwd,$context); |
| |
&Reply($client, "ok\n", $userinput); |
| |
} else { |
| |
&logthis("Unable to open $uname passwd " |
| |
."to change password"); |
| |
&Failure( $client, "non_authorized\n",$userinput); |
| |
} |
| |
} elsif ($howpwd eq 'unix' && $context ne 'reset_by_email') { |
| |
my $result = &change_unix_password($uname, $npass); |
| |
if ($result eq 'ok') { |
| |
&update_passwd_history($uname,$udom,$howpwd,$context); |
| |
} |
| |
&logthis("Result of password change for $uname: ". |
| |
$result); |
| |
&Reply($client, \$result, $userinput); |
| |
} else { |
| |
# this just means that the current password mode is not |
| |
# one we know how to change (e.g the kerberos auth modes or |
| |
# locally written auth handler). |
| |
# |
| |
&Failure( $client, "auth_mode_error\n", $userinput); |
| |
} |
| |
} else { |
| |
if ($failure eq '') { |
| |
$failure = 'non_authorized'; |
| |
} |
| |
&Failure( $client, "$failure\n", $userinput); |
| |
} |
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("passwd", \&change_password_handler, 1, 1, 0); |
| |
|
| |
sub hash_passwd { |
| |
my ($domain,$plainpass,@rest) = @_; |
| |
my ($salt,$cost); |
| |
if (@rest) { |
| |
$cost = $rest[0]; |
| |
# salt is first 22 characters, base-64 encoded by bcrypt |
| |
my $plainsalt = substr($rest[1],0,22); |
| |
$salt = Crypt::Eksblowfish::Bcrypt::de_base64($plainsalt); |
| |
} else { |
| |
my %domdefaults = &Apache::lonnet::get_domain_defaults($domain); |
| |
my $defaultcost = $domdefaults{'intauth_cost'}; |
| |
if (($defaultcost eq '') || ($defaultcost =~ /D/)) { |
| |
$cost = 10; |
| |
} else { |
| |
$cost = $defaultcost; |
| |
} |
| |
# Generate random 16-octet base64 salt |
| |
$salt = ""; |
| |
$salt .= pack("C", int rand(256)) for 1..16; |
| |
} |
| |
my $hash = &Crypt::Eksblowfish::Bcrypt::bcrypt_hash({ |
| |
key_nul => 1, |
| |
cost => $cost, |
| |
salt => $salt, |
| |
}, Digest::SHA::sha512(Encode::encode('UTF-8',$plainpass))); |
| |
|
| |
my $result = join("!", "", "bcrypt", sprintf("%02d",$cost), |
| |
&Crypt::Eksblowfish::Bcrypt::en_base64($salt). |
| |
&Crypt::Eksblowfish::Bcrypt::en_base64($hash)); |
| |
return $result; |
| |
} |
| |
|
| |
# |
| |
# Create a new user. User in this case means a lon-capa user. |
| |
# The user must either already exist in some authentication realm |
| |
# like kerberos or the /etc/passwd. If not, a user completely local to |
| |
# this loncapa system is created. |
| |
# |
| |
# Parameters: |
| |
# $cmd - The command that got us here. |
| |
# $tail - Tail of the command (remaining parameters). |
| |
# $client - File descriptor connected to client. |
| |
# Returns |
| |
# 0 - Requested to exit, caller should shut down. |
| |
# 1 - Continue processing. |
| |
# Implicit inputs: |
| |
# The authentication systems describe above have their own forms of implicit |
| |
# input into the authentication process that are described above. |
| |
sub add_user_handler { |
| |
|
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
|
| |
my ($udom,$uname,$umode,$npass)=split(/:/,$tail); |
| |
my $userinput = $cmd.":".$tail; # Reconstruct the full request line. |
| |
|
| |
&Debug("cmd =".$cmd." $udom =".$udom." uname=".$uname); |
| |
|
| |
|
| |
if($udom eq $currentdomainid) { # Reject new users for other domains... |
| |
|
| |
my $oldumask=umask(0077); |
| |
chomp($npass); |
| |
$npass=&unescape($npass); |
| |
my $passfilename = &password_path($udom, $uname); |
| |
&Debug("Password file created will be:".$passfilename); |
| |
if (-e $passfilename) { |
| |
&Failure( $client, "already_exists\n", $userinput); |
| |
} else { |
| |
my $fperror=''; |
| |
if (!&mkpath($passfilename)) { |
| |
$fperror="error: ".($!+0)." mkdir failed while attempting " |
| |
."makeuser"; |
| |
} |
| |
unless ($fperror) { |
| |
my $result=&make_passwd_file($uname,$udom,$umode,$npass, |
| |
$passfilename,'makeuser'); |
| |
&Reply($client,\$result, $userinput); #BUGBUG - could be fail |
| |
} else { |
| |
&Failure($client, \$fperror, $userinput); |
| |
} |
| |
} |
| |
umask($oldumask); |
| |
} else { |
| |
&Failure($client, "not_right_domain\n", |
| |
$userinput); # Even if we are multihomed. |
| |
|
| |
} |
| |
return 1; |
| |
|
| |
} |
| |
®ister_handler("makeuser", \&add_user_handler, 1, 1, 0); |
| |
|
| |
# |
| |
# Change the authentication method of a user. Note that this may |
| |
# also implicitly change the user's password if, for example, the user is |
| |
# joining an existing authentication realm. Known authentication realms at |
| |
# this time are: |
| |
# internal - Purely internal password file (only loncapa knows this user) |
| |
# local - Institutionally written authentication module. |
| |
# unix - Unix user (/etc/passwd with or without /etc/shadow). |
| |
# kerb4 - kerberos version 4 |
| |
# kerb5 - kerberos version 5 |
| |
# |
| |
# Parameters: |
| |
# $cmd - The command that got us here. |
| |
# $tail - Tail of the command (remaining parameters). |
| |
# $client - File descriptor connected to client. |
| |
# Returns |
| |
# 0 - Requested to exit, caller should shut down. |
| |
# 1 - Continue processing. |
| |
# Implicit inputs: |
| |
# The authentication systems describe above have their own forms of implicit |
| |
# input into the authentication process that are described above. |
| |
# NOTE: |
| |
# This is also used to change the authentication credential values (e.g. passwd). |
| |
# |
| |
# |
| |
sub change_authentication_handler { |
| |
|
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my $userinput = "$cmd:$tail"; # Reconstruct user input. |
| |
|
| |
my ($udom,$uname,$umode,$npass)=split(/:/,$tail); |
| |
&Debug("cmd = ".$cmd." domain= ".$udom."uname =".$uname." umode= ".$umode); |
| |
if ($udom ne $currentdomainid) { |
| |
&Failure( $client, "not_right_domain\n", $client); |
| |
} else { |
| |
|
| |
chomp($npass); |
| |
|
| |
$npass=&unescape($npass); |
| |
my $oldauth = &get_auth_type($udom, $uname); # Get old auth info. |
| |
my $passfilename = &password_path($udom, $uname); |
| |
if ($passfilename) { # Not allowed to create a new user!! |
| |
# If just changing the unix passwd. need to arrange to run |
| |
# passwd since otherwise make_passwd_file will fail as |
| |
# creation of unix authenticated users is no longer supported |
| |
# except from the command line, when running make_domain_coordinator.pl |
| |
|
| |
if(($oldauth =~/^unix/) && ($umode eq "unix")) { |
| |
my $result = &change_unix_password($uname, $npass); |
| |
&logthis("Result of password change for $uname: ".$result); |
| |
if ($result eq "ok") { |
| |
&update_passwd_history($uname,$udom,$umode,'changeuserauth'); |
| |
&Reply($client, \$result); |
| |
} else { |
| |
&Failure($client, \$result); |
| |
} |
| |
} else { |
| |
my $result=&make_passwd_file($uname,$udom,$umode,$npass, |
| |
$passfilename,'changeuserauth'); |
| |
# |
| |
# If the current auth mode is internal, and the old auth mode was |
| |
# unix, or krb*, and the user is an author for this domain, |
| |
# re-run manage_permissions for that role in order to be able |
| |
# to take ownership of the construction space back to www:www |
| |
# |
| |
|
| |
|
| |
&Reply($client, \$result, $userinput); |
| |
} |
| |
|
| |
|
| |
} else { |
| |
&Failure($client, "non_authorized\n", $userinput); # Fail the user now. |
| |
} |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("changeuserauth", \&change_authentication_handler, 1,1, 0); |
| |
|
| |
sub update_passwd_history { |
| |
my ($uname,$udom,$umode,$context) = @_; |
| |
my $proname=&propath($udom,$uname); |
| |
my $now = time; |
| |
if (open(my $fh,">>$proname/passwd.log")) { |
| |
print $fh "$now:$umode:$context\n"; |
| |
close($fh); |
| |
} |
| |
return; |
| |
} |
| |
|
| |
# |
| |
# Determines if this is the home server for a user. The home server |
| |
# for a user will have his/her lon-capa passwd file. Therefore all we need |
| |
# to do is determine if this file exists. |
| |
# |
| |
# Parameters: |
| |
# $cmd - The command that got us here. |
| |
# $tail - Tail of the command (remaining parameters). |
| |
# $client - File descriptor connected to client. |
| |
# Returns |
| |
# 0 - Requested to exit, caller should shut down. |
| |
# 1 - Continue processing. |
| |
# Implicit inputs: |
| |
# The authentication systems describe above have their own forms of implicit |
| |
# input into the authentication process that are described above. |
| |
# |
| |
sub is_home_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
my ($udom,$uname)=split(/:/,$tail); |
| |
chomp($uname); |
| |
my $passfile = &password_filename($udom, $uname); |
| |
if($passfile) { |
| |
&Reply( $client, "found\n", $userinput); |
| |
} else { |
| |
&Failure($client, "not_found\n", $userinput); |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("home", \&is_home_handler, 0,1,0); |
| |
|
| |
# |
| |
# Process an update request for a resource. |
| |
# A resource has been modified that we hold a subscription to. |
| |
# If the resource is not local, then we must update, or at least invalidate our |
| |
# cached copy of the resource. |
| |
# Parameters: |
| |
# $cmd - The command that got us here. |
| |
# $tail - Tail of the command (remaining parameters). |
| |
# $client - File descriptor connected to client. |
| |
# Returns |
| |
# 0 - Requested to exit, caller should shut down. |
| |
# 1 - Continue processing. |
| |
# Implicit inputs: |
| |
# The authentication systems describe above have their own forms of implicit |
| |
# input into the authentication process that are described above. |
| |
# |
| |
sub update_resource_handler { |
| |
|
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
my $fname= $tail; # This allows interactive testing |
| |
|
| |
|
| |
my $ownership=ishome($fname); |
| |
if ($ownership eq 'not_owner') { |
| |
if (-e $fname) { |
| |
# Delete preview file, if exists |
| |
unlink("$fname.tmp"); |
| |
# Get usage stats |
| |
my ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size, |
| |
$atime,$mtime,$ctime,$blksize,$blocks)=stat($fname); |
| |
my $now=time; |
| |
my $since=$now-$atime; |
| |
# If the file has not been used within lonExpire seconds, |
| |
# unsubscribe from it and delete local copy |
| |
if ($since>$perlvar{'lonExpire'}) { |
| |
my $reply=&Apache::lonnet::reply("unsub:$fname","$clientname"); |
| |
&devalidate_meta_cache($fname); |
| |
unlink("$fname"); |
| |
unlink("$fname.meta"); |
| |
} else { |
| |
# Yes, this is in active use. Get a fresh copy. Since it might be in |
| |
# very active use and huge (like a movie), copy it to "in.transfer" filename first. |
| |
my $transname="$fname.in.transfer"; |
| |
my $remoteurl=&Apache::lonnet::reply("sub:$fname","$clientname"); |
| |
my $response; |
| |
# FIXME: cannot replicate files that take more than two minutes to transfer? |
| |
# alarm(120); |
| |
# FIXME: this should use the LWP mechanism, not internal alarms. |
| |
alarm(1200); |
| |
{ |
| |
my $ua=new LWP::UserAgent; |
| |
my $request=new HTTP::Request('GET',"$remoteurl"); |
| |
$response=$ua->request($request,$transname); |
| |
} |
| |
alarm(0); |
| |
if ($response->is_error()) { |
| |
my $reply=&Apache::lonnet::reply("unsub:$fname","$clientname"); |
| |
&devalidate_meta_cache($fname); |
| |
if (-e $transname) { |
| |
unlink($transname); |
| |
} |
| |
unlink($fname); |
| |
my $message=$response->status_line; |
| |
&logthis("LWP GET: $message for $fname ($remoteurl)"); |
| |
} else { |
| |
if ($remoteurl!~/\.meta$/) { |
| |
# FIXME: isn't there an internal LWP mechanism for this? |
| |
alarm(120); |
| |
{ |
| |
my $ua=new LWP::UserAgent; |
| |
my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta'); |
| |
my $mresponse=$ua->request($mrequest,$fname.'.meta'); |
| |
if ($mresponse->is_error()) { |
| |
unlink($fname.'.meta'); |
| |
} |
| |
} |
| |
alarm(0); |
| |
} |
| |
# we successfully transfered, copy file over to real name |
| |
rename($transname,$fname); |
| |
&devalidate_meta_cache($fname); |
| |
} |
| |
} |
| |
&Reply( $client, "ok\n", $userinput); |
| |
} else { |
| |
&Failure($client, "not_found\n", $userinput); |
| |
} |
| |
} else { |
| |
&Failure($client, "rejected\n", $userinput); |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("update", \&update_resource_handler, 0 ,1, 0); |
| |
|
| |
sub devalidate_meta_cache { |
| |
my ($url) = @_; |
| |
use Cache::Memcached; |
| |
my $memcache = new Cache::Memcached({'servers'=>['127.0.0.1:11211']}); |
| |
$url = &Apache::lonnet::declutter($url); |
| |
$url =~ s-\.meta$--; |
| |
my $id = &escape('meta:'.$url); |
| |
$memcache->delete($id); |
| |
} |
| |
|
| |
# |
| |
# Fetch a user file from a remote server to the user's home directory |
| |
# userfiles subdir. |
| |
# Parameters: |
| |
# $cmd - The command that got us here. |
| |
# $tail - Tail of the command (remaining parameters). |
| |
# $client - File descriptor connected to client. |
| |
# Returns |
| |
# 0 - Requested to exit, caller should shut down. |
| |
# 1 - Continue processing. |
| |
# |
| |
sub fetch_user_file_handler { |
| |
|
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my $userinput = "$cmd:$tail"; |
| |
my $fname = $tail; |
| |
my ($udom,$uname,$ufile) = ($fname =~ m|^([^/]+)/([^/]+)/(.+)$|); |
| |
my $udir=&propath($udom,$uname).'/userfiles'; |
| |
unless (-e $udir) { |
| |
mkdir($udir,0770); |
| |
} |
| |
Debug("fetch user file for $fname"); |
| |
if (-e $udir) { |
| |
$ufile=~s/^[\.\~]+//; |
| |
|
| |
# IF necessary, create the path right down to the file. |
| |
# Note that any regular files in the way of this path are |
| |
# wiped out to deal with some earlier folly of mine. |
| |
|
| |
if (!&mkpath($udir.'/'.$ufile)) { |
| |
&Failure($client, "unable_to_create\n", $userinput); |
| |
} |
| |
|
| |
my $destname=$udir.'/'.$ufile; |
| |
my $transname=$udir.'/'.$ufile.'.in.transit'; |
| |
my $clientprotocol=$Apache::lonnet::protocol{$clientname}; |
| |
$clientprotocol = 'http' if ($clientprotocol ne 'https'); |
| |
my $clienthost = &Apache::lonnet::hostname($clientname); |
| |
my $remoteurl=$clientprotocol.'://'.$clienthost.'/userfiles/'.$fname; |
| |
my $response; |
| |
Debug("Remote URL : $remoteurl Transfername $transname Destname: $destname"); |
| |
alarm(120); |
| |
{ |
| |
my $ua=new LWP::UserAgent; |
| |
my $request=new HTTP::Request('GET',"$remoteurl"); |
| |
$response=$ua->request($request,$transname); |
| |
} |
| |
alarm(0); |
| |
if ($response->is_error()) { |
| |
unlink($transname); |
| |
my $message=$response->status_line; |
| |
&logthis("LWP GET: $message for $fname ($remoteurl)"); |
| |
&Failure($client, "failed\n", $userinput); |
| |
} else { |
| |
Debug("Renaming $transname to $destname"); |
| |
if (!rename($transname,$destname)) { |
| |
&logthis("Unable to move $transname to $destname"); |
| |
unlink($transname); |
| |
&Failure($client, "failed\n", $userinput); |
| |
} else { |
| |
if ($fname =~ /^default.+\.(page|sequence)$/) { |
| |
my ($major,$minor) = split(/\./,$clientversion); |
| |
if (($major < 2) || ($major == 2 && $minor < 11)) { |
| |
my $now = time; |
| |
&Apache::lonnet::do_cache_new('crschange',$udom.'_'.$uname,$now,600); |
| |
my $key = &escape('internal.contentchange'); |
| |
my $what = "$key=$now"; |
| |
my $hashref = &tie_user_hash($udom,$uname,'environment', |
| |
&GDBM_WRCREAT(),"P",$what); |
| |
if ($hashref) { |
| |
$hashref->{$key}=$now; |
| |
if (!&untie_user_hash($hashref)) { |
| |
&logthis("error: ".($!+0)." untie (GDBM) failed ". |
| |
"when updating internal.contentchange"); |
| |
} |
| |
} |
| |
} |
| |
} |
| |
&Reply($client, "ok\n", $userinput); |
| |
} |
| |
} |
| |
} else { |
| |
&Failure($client, "not_home\n", $userinput); |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("fetchuserfile", \&fetch_user_file_handler, 0, 1, 0); |
| |
|
| |
# |
| |
# Remove a file from a user's home directory userfiles subdirectory. |
| |
# Parameters: |
| |
# cmd - the Lond request keyword that got us here. |
| |
# tail - the part of the command past the keyword. |
| |
# client- File descriptor connected with the client. |
| |
# |
| |
# Returns: |
| |
# 1 - Continue processing. |
| |
sub remove_user_file_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my ($fname) = split(/:/, $tail); # Get rid of any tailing :'s lonc may have sent. |
| |
|
| |
my ($udom,$uname,$ufile) = ($fname =~ m|^([^/]+)/([^/]+)/(.+)$|); |
| |
if ($ufile =~m|/\.\./|) { |
| |
# any files paths with /../ in them refuse |
| |
# to deal with |
| |
&Failure($client, "refused\n", "$cmd:$tail"); |
| |
} else { |
| |
my $udir = &propath($udom,$uname); |
| |
if (-e $udir) { |
| |
my $file=$udir.'/userfiles/'.$ufile; |
| |
if (-e $file) { |
| |
# |
| |
# If the file is a regular file unlink is fine... |
| |
# However it's possible the client wants a dir |
| |
# removed, in which case rmdir is more appropriate |
| |
# Note: rmdir will only remove an empty directory. |
| |
# |
| |
if (-f $file){ |
| |
unlink($file); |
| |
# for html files remove the associated .bak file |
| |
# which may have been created by the editor. |
| |
if ($ufile =~ m{^((docs|supplemental)/(?:\d+|default)/\d+(?:|/.+)/)[^/]+\.x?html?$}i) { |
| |
my $path = $1; |
| |
if (-e $file.'.bak') { |
| |
unlink($file.'.bak'); |
| |
} |
| |
} |
| |
} elsif(-d $file) { |
| |
rmdir($file); |
| |
} |
| |
if (-e $file) { |
| |
# File is still there after we deleted it ?!? |
| |
|
| |
&Failure($client, "failed\n", "$cmd:$tail"); |
| |
} else { |
| |
&Reply($client, "ok\n", "$cmd:$tail"); |
| |
} |
| |
} else { |
| |
&Failure($client, "not_found\n", "$cmd:$tail"); |
| |
} |
| |
} else { |
| |
&Failure($client, "not_home\n", "$cmd:$tail"); |
| |
} |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("removeuserfile", \&remove_user_file_handler, 0,1,0); |
| |
|
| |
# |
| |
# make a directory in a user's home directory userfiles subdirectory. |
| |
# Parameters: |
| |
# cmd - the Lond request keyword that got us here. |
| |
# tail - the part of the command past the keyword. |
| |
# client- File descriptor connected with the client. |
| |
# |
| |
# Returns: |
| |
# 1 - Continue processing. |
| |
sub mkdir_user_file_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my ($dir) = split(/:/, $tail); # Get rid of any tailing :'s lonc may have sent. |
| |
$dir=&unescape($dir); |
| |
my ($udom,$uname,$ufile) = ($dir =~ m|^([^/]+)/([^/]+)/(.+)$|); |
| |
if ($ufile =~m|/\.\./|) { |
| |
# any files paths with /../ in them refuse |
| |
# to deal with |
| |
&Failure($client, "refused\n", "$cmd:$tail"); |
| |
} else { |
| |
my $udir = &propath($udom,$uname); |
| |
if (-e $udir) { |
| |
my $newdir=$udir.'/userfiles/'.$ufile.'/'; |
| |
if (!&mkpath($newdir)) { |
| |
&Failure($client, "failed\n", "$cmd:$tail"); |
| |
} |
| |
&Reply($client, "ok\n", "$cmd:$tail"); |
| |
} else { |
| |
&Failure($client, "not_home\n", "$cmd:$tail"); |
| |
} |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("mkdiruserfile", \&mkdir_user_file_handler, 0,1,0); |
| |
|
| |
# |
| |
# rename a file in a user's home directory userfiles subdirectory. |
| |
# Parameters: |
| |
# cmd - the Lond request keyword that got us here. |
| |
# tail - the part of the command past the keyword. |
| |
# client- File descriptor connected with the client. |
| |
# |
| |
# Returns: |
| |
# 1 - Continue processing. |
| |
sub rename_user_file_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my ($udom,$uname,$old,$new) = split(/:/, $tail); |
| |
$old=&unescape($old); |
| |
$new=&unescape($new); |
| |
if ($new =~m|/\.\./| || $old =~m|/\.\./|) { |
| |
# any files paths with /../ in them refuse to deal with |
| |
&Failure($client, "refused\n", "$cmd:$tail"); |
| |
} else { |
| |
my $udir = &propath($udom,$uname); |
| |
if (-e $udir) { |
| |
my $oldfile=$udir.'/userfiles/'.$old; |
| |
my $newfile=$udir.'/userfiles/'.$new; |
| |
if (-e $newfile) { |
| |
&Failure($client, "exists\n", "$cmd:$tail"); |
| |
} elsif (! -e $oldfile) { |
| |
&Failure($client, "not_found\n", "$cmd:$tail"); |
| |
} else { |
| |
if (!rename($oldfile,$newfile)) { |
| |
&Failure($client, "failed\n", "$cmd:$tail"); |
| |
} else { |
| |
&Reply($client, "ok\n", "$cmd:$tail"); |
| |
} |
| |
} |
| |
} else { |
| |
&Failure($client, "not_home\n", "$cmd:$tail"); |
| |
} |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("renameuserfile", \&rename_user_file_handler, 0,1,0); |
| |
|
| |
# |
| |
# Checks if the specified user has an active session on the server |
| |
# return ok if so, not_found if not |
| |
# |
| |
# Parameters: |
| |
# cmd - The request keyword that dispatched to tus. |
| |
# tail - The tail of the request (colon separated parameters). |
| |
# client - Filehandle open on the client. |
| |
# Return: |
| |
# 1. |
| |
sub user_has_session_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my ($udom, $uname) = map { &unescape($_) } (split(/:/, $tail)); |
| |
|
| |
opendir(DIR,$perlvar{'lonIDsDir'}); |
| |
my $filename; |
| |
while ($filename=readdir(DIR)) { |
| |
last if ($filename=~/^\Q$uname\E_\d+_\Q$udom\E_/); |
| |
} |
| |
if ($filename) { |
| |
&Reply($client, "ok\n", "$cmd:$tail"); |
| |
} else { |
| |
&Failure($client, "not_found\n", "$cmd:$tail"); |
| |
} |
| |
return 1; |
| |
|
| |
} |
| |
®ister_handler("userhassession", \&user_has_session_handler, 0,1,0); |
| |
|
| |
# |
| |
# Authenticate access to a user file by checking that the token the user's |
| |
# passed also exists in their session file |
| |
# |
| |
# Parameters: |
| |
# cmd - The request keyword that dispatched to tus. |
| |
# tail - The tail of the request (colon separated parameters). |
| |
# client - Filehandle open on the client. |
| |
# Return: |
| |
# 1. |
| |
sub token_auth_user_file_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my ($fname, $session) = split(/:/, $tail); |
| |
|
| |
chomp($session); |
| |
my $reply="non_auth"; |
| |
my $file = $perlvar{'lonIDsDir'}.'/'.$session.'.id'; |
| |
if (open(ENVIN,"$file")) { |
| |
flock(ENVIN,LOCK_SH); |
| |
tie(my %disk_env,'GDBM_File',"$file",&GDBM_READER(),0640); |
| |
if (exists($disk_env{"userfile.$fname"})) { |
| |
$reply="ok"; |
| |
} else { |
| |
foreach my $envname (keys(%disk_env)) { |
| |
if ($envname=~ m|^userfile\.\Q$fname\E|) { |
| |
$reply="ok"; |
| |
last; |
| |
} |
| |
} |
| |
} |
| |
untie(%disk_env); |
| |
close(ENVIN); |
| |
&Reply($client, \$reply, "$cmd:$tail"); |
| |
} else { |
| |
&Failure($client, "invalid_token\n", "$cmd:$tail"); |
| |
} |
| |
return 1; |
| |
|
| |
} |
| |
®ister_handler("tokenauthuserfile", \&token_auth_user_file_handler, 0,1,0); |
| |
|
| |
# |
| |
# Unsubscribe from a resource. |
| |
# |
| |
# Parameters: |
| |
# $cmd - The command that got us here. |
| |
# $tail - Tail of the command (remaining parameters). |
| |
# $client - File descriptor connected to client. |
| |
# Returns |
| |
# 0 - Requested to exit, caller should shut down. |
| |
# 1 - Continue processing. |
| |
# |
| |
sub unsubscribe_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my $userinput= "$cmd:$tail"; |
| |
|
| |
my ($fname) = split(/:/,$tail); # Split in case there's extrs. |
| |
|
| |
&Debug("Unsubscribing $fname"); |
| |
if (-e $fname) { |
| |
&Debug("Exists"); |
| |
&Reply($client, &unsub($fname,$clientip), $userinput); |
| |
} else { |
| |
&Failure($client, "not_found\n", $userinput); |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("unsub", \&unsubscribe_handler, 0, 1, 0); |
| |
|
| |
# Subscribe to a resource |
| |
# |
| |
# Parameters: |
| |
# $cmd - The command that got us here. |
| |
# $tail - Tail of the command (remaining parameters). |
| |
# $client - File descriptor connected to client. |
| |
# Returns |
| |
# 0 - Requested to exit, caller should shut down. |
| |
# 1 - Continue processing. |
| |
# |
| |
sub subscribe_handler { |
| |
my ($cmd, $tail, $client)= @_; |
| |
|
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
&Reply( $client, &subscribe($userinput,$clientip), $userinput); |
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("sub", \&subscribe_handler, 0, 1, 0); |
| |
|
| |
# |
| |
# Determine the latest version of a resource (it looks for the highest |
| |
# past version and then returns that +1) |
| |
# |
| |
# Parameters: |
| |
# $cmd - The command that got us here. |
| |
# $tail - Tail of the command (remaining parameters). |
| |
# (Should consist of an absolute path to a file) |
| |
# $client - File descriptor connected to client. |
| |
# Returns |
| |
# 0 - Requested to exit, caller should shut down. |
| |
# 1 - Continue processing. |
| |
# |
| |
sub current_version_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my $userinput= "$cmd:$tail"; |
| |
|
| |
my $fname = $tail; |
| |
&Reply( $client, ¤tversion($fname)."\n", $userinput); |
| |
return 1; |
| |
|
| |
} |
| |
®ister_handler("currentversion", \¤t_version_handler, 0, 1, 0); |
| |
|
| |
# Make an entry in a user's activity log. |
| |
# |
| |
# Parameters: |
| |
# $cmd - The command that got us here. |
| |
# $tail - Tail of the command (remaining parameters). |
| |
# $client - File descriptor connected to client. |
| |
# Returns |
| |
# 0 - Requested to exit, caller should shut down. |
| |
# 1 - Continue processing. |
| |
# |
| |
sub activity_log_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
|
| |
my $userinput= "$cmd:$tail"; |
| |
|
| |
my ($udom,$uname,$what)=split(/:/,$tail); |
| |
chomp($what); |
| |
my $proname=&propath($udom,$uname); |
| |
my $now=time; |
| |
my $hfh; |
| |
if ($hfh=IO::File->new(">>$proname/activity.log")) { |
| |
print $hfh "$now:$clientname:$what\n"; |
| |
&Reply( $client, "ok\n", $userinput); |
| |
} else { |
| |
&Failure($client, "error: ".($!+0)." IO::File->new Failed " |
| |
."while attempting log\n", |
| |
$userinput); |
| |
} |
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("log", \&activity_log_handler, 0, 1, 0); |
| |
|
| |
# |
| |
# Put a namespace entry in a user profile hash. |
| |
# My druthers would be for this to be an encrypted interaction too. |
| |
# anything that might be an inadvertent covert channel about either |
| |
# user authentication or user personal information.... |
| |
# |
| |
# Parameters: |
| |
# $cmd - The command that got us here. |
| |
# $tail - Tail of the command (remaining parameters). |
| |
# $client - File descriptor connected to client. |
| |
# Returns |
| |
# 0 - Requested to exit, caller should shut down. |
| |
# 1 - Continue processing. |
| |
# |
| |
sub put_user_profile_entry { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
my ($udom,$uname,$namespace,$what) =split(/:/,$tail,4); |
| |
if ($namespace ne 'roles') { |
| |
chomp($what); |
| |
my $hashref = &tie_user_hash($udom, $uname, $namespace, |
| |
&GDBM_WRCREAT(),"P",$what); |
| |
if($hashref) { |
| |
my @pairs=split(/\&/,$what); |
| |
foreach my $pair (@pairs) { |
| |
my ($key,$value)=split(/=/,$pair); |
| |
$hashref->{$key}=$value; |
| |
} |
| |
if (&untie_user_hash($hashref)) { |
| |
&Reply( $client, "ok\n", $userinput); |
| |
} else { |
| |
&Failure($client, "error: ".($!+0)." untie(GDBM) failed ". |
| |
"while attempting put\n", |
| |
$userinput); |
| |
} |
| |
} else { |
| |
&Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ". |
| |
"while attempting put\n", $userinput); |
| |
} |
| |
} else { |
| |
&Failure( $client, "refused\n", $userinput); |
| |
} |
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("put", \&put_user_profile_entry, 0, 1, 0); |
| |
|
| |
# Put a piece of new data in hash, returns error if entry already exists |
| |
# Parameters: |
| |
# $cmd - The command that got us here. |
| |
# $tail - Tail of the command (remaining parameters). |
| |
# $client - File descriptor connected to client. |
| |
# Returns |
| |
# 0 - Requested to exit, caller should shut down. |
| |
# 1 - Continue processing. |
| |
# |
| |
sub newput_user_profile_entry { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
my ($udom,$uname,$namespace,$what) =split(/:/,$tail,4); |
| |
if ($namespace eq 'roles') { |
| |
&Failure( $client, "refused\n", $userinput); |
| |
return 1; |
| |
} |
| |
|
| |
chomp($what); |
| |
|
| |
my $hashref = &tie_user_hash($udom, $uname, $namespace, |
| |
&GDBM_WRCREAT(),"N",$what); |
| |
if(!$hashref) { |
| |
&Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ". |
| |
"while attempting put\n", $userinput); |
| |
return 1; |
| |
} |
| |
|
| |
my @pairs=split(/\&/,$what); |
| |
foreach my $pair (@pairs) { |
| |
my ($key,$value)=split(/=/,$pair); |
| |
if (exists($hashref->{$key})) { |
| |
if (!&untie_user_hash($hashref)) { |
| |
&logthis("error: ".($!+0)." untie (GDBM) failed ". |
| |
"while attempting newput - early out as key exists"); |
| |
} |
| |
&Failure($client, "key_exists: ".$key."\n",$userinput); |
| |
return 1; |
| |
} |
| |
} |
| |
|
| |
foreach my $pair (@pairs) { |
| |
my ($key,$value)=split(/=/,$pair); |
| |
$hashref->{$key}=$value; |
| |
} |
| |
|
| |
if (&untie_user_hash($hashref)) { |
| |
&Reply( $client, "ok\n", $userinput); |
| |
} else { |
| |
&Failure($client, "error: ".($!+0)." untie(GDBM) failed ". |
| |
"while attempting put\n", |
| |
$userinput); |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("newput", \&newput_user_profile_entry, 0, 1, 0); |
| |
|
| |
# |
| |
# Increment a profile entry in the user history file. |
| |
# The history contains keyword value pairs. In this case, |
| |
# The value itself is a pair of numbers. The first, the current value |
| |
# the second an increment that this function applies to the current |
| |
# value. |
| |
# |
| |
# Parameters: |
| |
# $cmd - The command that got us here. |
| |
# $tail - Tail of the command (remaining parameters). |
| |
# $client - File descriptor connected to client. |
| |
# Returns |
| |
# 0 - Requested to exit, caller should shut down. |
| |
# 1 - Continue processing. |
| |
# |
| |
sub increment_user_value_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
my ($udom,$uname,$namespace,$what) =split(/:/,$tail); |
| |
if ($namespace ne 'roles') { |
| |
chomp($what); |
| |
my $hashref = &tie_user_hash($udom, $uname, |
| |
$namespace, &GDBM_WRCREAT(), |
| |
"P",$what); |
| |
if ($hashref) { |
| |
my @pairs=split(/\&/,$what); |
| |
foreach my $pair (@pairs) { |
| |
my ($key,$value)=split(/=/,$pair); |
| |
$value = &unescape($value); |
| |
# We could check that we have a number... |
| |
if (! defined($value) || $value eq '') { |
| |
$value = 1; |
| |
} |
| |
$hashref->{$key}+=$value; |
| |
if ($namespace eq 'nohist_resourcetracker') { |
| |
if ($hashref->{$key} < 0) { |
| |
$hashref->{$key} = 0; |
| |
} |
| |
} |
| |
} |
| |
if (&untie_user_hash($hashref)) { |
| |
&Reply( $client, "ok\n", $userinput); |
| |
} else { |
| |
&Failure($client, "error: ".($!+0)." untie(GDBM) failed ". |
| |
"while attempting inc\n", $userinput); |
| |
} |
| |
} else { |
| |
&Failure($client, "error: ".($!+0)." tie(GDBM) Failed ". |
| |
"while attempting inc\n", $userinput); |
| |
} |
| |
} else { |
| |
&Failure($client, "refused\n", $userinput); |
| |
} |
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("inc", \&increment_user_value_handler, 0, 1, 0); |
| |
|
| |
# |
| |
# Put a new role for a user. Roles are LonCAPA's packaging of permissions. |
| |
# Each 'role' a user has implies a set of permissions. Adding a new role |
| |
# for a person grants the permissions packaged with that role |
| |
# to that user when the role is selected. |
| |
# |
| |
# Parameters: |
| |
# $cmd - The command string (rolesput). |
| |
# $tail - The remainder of the request line. For rolesput this |
| |
# consists of a colon separated list that contains: |
| |
# The domain and user that is granting the role (logged). |
| |
# The domain and user that is getting the role. |
| |
# The roles being granted as a set of & separated pairs. |
| |
# each pair a key value pair. |
| |
# $client - File descriptor connected to the client. |
| |
# Returns: |
| |
# 0 - If the daemon should exit |
| |
# 1 - To continue processing. |
| |
# |
| |
# |
| |
sub roles_put_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
my ( $exedom, $exeuser, $udom, $uname, $what) = split(/:/,$tail); |
| |
|
| |
|
| |
my $namespace='roles'; |
| |
chomp($what); |
| |
my $hashref = &tie_user_hash($udom, $uname, $namespace, |
| |
&GDBM_WRCREAT(), "P", |
| |
"$exedom:$exeuser:$what"); |
| |
# |
| |
# Log the attempt to set a role. The {}'s here ensure that the file |
| |
# handle is open for the minimal amount of time. Since the flush |
| |
# is done on close this improves the chances the log will be an un- |
| |
# corrupted ordered thing. |
| |
if ($hashref) { |
| |
my $pass_entry = &get_auth_type($udom, $uname); |
| |
my ($auth_type,$pwd) = split(/:/, $pass_entry); |
| |
$auth_type = $auth_type.":"; |
| |
my @pairs=split(/\&/,$what); |
| |
foreach my $pair (@pairs) { |
| |
my ($key,$value)=split(/=/,$pair); |
| |
&manage_permissions($key, $udom, $uname, |
| |
$auth_type); |
| |
$hashref->{$key}=$value; |
| |
} |
| |
if (&untie_user_hash($hashref)) { |
| |
&Reply($client, "ok\n", $userinput); |
| |
} else { |
| |
&Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ". |
| |
"while attempting rolesput\n", $userinput); |
| |
} |
| |
} else { |
| |
&Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ". |
| |
"while attempting rolesput\n", $userinput); |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("rolesput", \&roles_put_handler, 1,1,0); # Encoded client only. |
| |
|
| |
# |
| |
# Deletes (removes) a role for a user. This is equivalent to removing |
| |
# a permissions package associated with the role from the user's profile. |
| |
# |
| |
# Parameters: |
| |
# $cmd - The command (rolesdel) |
| |
# $tail - The remainder of the request line. This consists |
| |
# of: |
| |
# The domain and user requesting the change (logged) |
| |
# The domain and user being changed. |
| |
# The roles being revoked. These are shipped to us |
| |
# as a bunch of & separated role name keywords. |
| |
# $client - The file handle open on the client. |
| |
# Returns: |
| |
# 1 - Continue processing |
| |
# 0 - Exit. |
| |
# |
| |
sub roles_delete_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
my ($exedom,$exeuser,$udom,$uname,$what)=split(/:/,$tail); |
| |
&Debug("cmd = ".$cmd." exedom= ".$exedom."user = ".$exeuser." udom=".$udom. |
| |
"what = ".$what); |
| |
my $namespace='roles'; |
| |
chomp($what); |
| |
my $hashref = &tie_user_hash($udom, $uname, $namespace, |
| |
&GDBM_WRCREAT(), "D", |
| |
"$exedom:$exeuser:$what"); |
| |
|
| |
if ($hashref) { |
| |
my @rolekeys=split(/\&/,$what); |
| |
|
| |
foreach my $key (@rolekeys) { |
| |
delete $hashref->{$key}; |
| |
} |
| |
if (&untie_user_hash($hashref)) { |
| |
&Reply($client, "ok\n", $userinput); |
| |
} else { |
| |
&Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ". |
| |
"while attempting rolesdel\n", $userinput); |
| |
} |
| |
} else { |
| |
&Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ". |
| |
"while attempting rolesdel\n", $userinput); |
| |
} |
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("rolesdel", \&roles_delete_handler, 1,1, 0); # Encoded client only |
| |
|
| |
# Unencrypted get from a user's profile database. See |
| |
# GetProfileEntryEncrypted for a version that does end-to-end encryption. |
| |
# This function retrieves a keyed item from a specific named database in the |
| |
# user's directory. |
| |
# |
| |
# Parameters: |
| |
# $cmd - Command request keyword (get). |
| |
# $tail - Tail of the command. This is a colon separated list |
| |
# consisting of the domain and username that uniquely |
| |
# identifies the profile, |
| |
# The 'namespace' which selects the gdbm file to |
| |
# do the lookup in, |
| |
# & separated list of keys to lookup. Note that |
| |
# the values are returned as an & separated list too. |
| |
# $client - File descriptor open on the client. |
| |
# Returns: |
| |
# 1 - Continue processing. |
| |
# 0 - Exit. |
| |
# |
| |
sub get_profile_entry { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my $userinput= "$cmd:$tail"; |
| |
|
| |
my ($udom,$uname,$namespace,$what) = split(/:/,$tail); |
| |
chomp($what); |
| |
|
| |
|
| |
my $replystring = read_profile($udom, $uname, $namespace, $what); |
| |
my ($first) = split(/:/,$replystring); |
| |
if($first ne "error") { |
| |
&Reply($client, \$replystring, $userinput); |
| |
} else { |
| |
&Failure($client, $replystring." while attempting get\n", $userinput); |
| |
} |
| |
return 1; |
| |
|
| |
|
| |
} |
| |
®ister_handler("get", \&get_profile_entry, 0,1,0); |
| |
|
| |
# |
| |
# Process the encrypted get request. Note that the request is sent |
| |
# in clear, but the reply is encrypted. This is a small covert channel: |
| |
# information about the sensitive keys is given to the snooper. Just not |
| |
# information about the values of the sensitive key. Hmm if I wanted to |
| |
# know these I'd snoop for the egets. Get the profile item names from them |
| |
# and then issue a get for them since there's no enforcement of the |
| |
# requirement of an encrypted get for particular profile items. If I |
| |
# were re-doing this, I'd force the request to be encrypted as well as the |
| |
# reply. I'd also just enforce encrypted transactions for all gets since |
| |
# that would prevent any covert channel snooping. |
| |
# |
| |
# Parameters: |
| |
# $cmd - Command keyword of request (eget). |
| |
# $tail - Tail of the command. See GetProfileEntry |
| |
# for more information about this. |
| |
# $client - File open on the client. |
| |
# Returns: |
| |
# 1 - Continue processing |
| |
# 0 - server should exit. |
| |
sub get_profile_entry_encrypted { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
my ($udom,$uname,$namespace,$what) = split(/:/,$tail); |
| |
chomp($what); |
| |
my $qresult = read_profile($udom, $uname, $namespace, $what); |
| |
my ($first) = split(/:/, $qresult); |
| |
if($first ne "error") { |
| |
|
| |
if ($cipher) { |
| |
my $cmdlength=length($qresult); |
| |
$qresult.=" "; |
| |
my $encqresult=''; |
| |
for(my $encidx=0;$encidx<=$cmdlength;$encidx+=8) { |
| |
$encqresult.= unpack("H16", |
| |
$cipher->encrypt(substr($qresult, |
| |
$encidx, |
| |
8))); |
| |
} |
| |
&Reply( $client, "enc:$cmdlength:$encqresult\n", $userinput); |
| |
} else { |
| |
&Failure( $client, "error:no_key\n", $userinput); |
| |
} |
| |
} else { |
| |
&Failure($client, "$qresult while attempting eget\n", $userinput); |
| |
|
| |
} |
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("eget", \&get_profile_entry_encrypted, 0, 1, 0); |
| |
|
| |
# |
| |
# Deletes a key in a user profile database. |
| |
# |
| |
# Parameters: |
| |
# $cmd - Command keyword (del). |
| |
# $tail - Command tail. IN this case a colon |
| |
# separated list containing: |
| |
# The domain and user that identifies uniquely |
| |
# the identity of the user. |
| |
# The profile namespace (name of the profile |
| |
# database file). |
| |
# & separated list of keywords to delete. |
| |
# $client - File open on client socket. |
| |
# Returns: |
| |
# 1 - Continue processing |
| |
# 0 - Exit server. |
| |
# |
| |
# |
| |
sub delete_profile_entry { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my $userinput = "cmd:$tail"; |
| |
|
| |
my ($udom,$uname,$namespace,$what) = split(/:/,$tail); |
| |
chomp($what); |
| |
my $hashref = &tie_user_hash($udom, $uname, $namespace, |
| |
&GDBM_WRCREAT(), |
| |
"D",$what); |
| |
if ($hashref) { |
| |
my @keys=split(/\&/,$what); |
| |
foreach my $key (@keys) { |
| |
delete($hashref->{$key}); |
| |
} |
| |
if (&untie_user_hash($hashref)) { |
| |
&Reply($client, "ok\n", $userinput); |
| |
} else { |
| |
&Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". |
| |
"while attempting del\n", $userinput); |
| |
} |
| |
} else { |
| |
&Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ". |
| |
"while attempting del\n", $userinput); |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("del", \&delete_profile_entry, 0, 1, 0); |
| |
|
| |
# |
| |
# List the set of keys that are defined in a profile database file. |
| |
# A successful reply from this will contain an & separated list of |
| |
# the keys. |
| |
# Parameters: |
| |
# $cmd - Command request (keys). |
| |
# $tail - Remainder of the request, a colon separated |
| |
# list containing domain/user that identifies the |
| |
# user being queried, and the database namespace |
| |
# (database filename essentially). |
| |
# $client - File open on the client. |
| |
# Returns: |
| |
# 1 - Continue processing. |
| |
# 0 - Exit the server. |
| |
# |
| |
sub get_profile_keys { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
my ($udom,$uname,$namespace)=split(/:/,$tail); |
| |
my $qresult=''; |
| |
my $hashref = &tie_user_hash($udom, $uname, $namespace, |
| |
&GDBM_READER()); |
| |
if ($hashref) { |
| |
foreach my $key (keys %$hashref) { |
| |
$qresult.="$key&"; |
| |
} |
| |
if (&untie_user_hash($hashref)) { |
| |
$qresult=~s/\&$//; |
| |
&Reply($client, \$qresult, $userinput); |
| |
} else { |
| |
&Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". |
| |
"while attempting keys\n", $userinput); |
| |
} |
| |
} else { |
| |
&Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ". |
| |
"while attempting keys\n", $userinput); |
| |
} |
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("keys", \&get_profile_keys, 0, 1, 0); |
| |
|
| |
# |
| |
# Dump the contents of a user profile database. |
| |
# Note that this constitutes a very large covert channel too since |
| |
# the dump will return sensitive information that is not encrypted. |
| |
# The naive security assumption is that the session negotiation ensures |
| |
# our client is trusted and I don't believe that's assured at present. |
| |
# Sure want badly to go to ssl or tls. Of course if my peer isn't really |
| |
# a LonCAPA node they could have negotiated an encryption key too so >sigh<. |
| |
# |
| |
# Parameters: |
| |
# $cmd - The command request keyword (currentdump). |
| |
# $tail - Remainder of the request, consisting of a colon |
| |
# separated list that has the domain/username and |
| |
# the namespace to dump (database file). |
| |
# $client - file open on the remote client. |
| |
# Returns: |
| |
# 1 - Continue processing. |
| |
# 0 - Exit the server. |
| |
# |
| |
sub dump_profile_database { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
my ($udom,$uname,$namespace) = split(/:/,$tail); |
| |
my $hashref = &tie_user_hash($udom, $uname, $namespace, |
| |
&GDBM_READER()); |
| |
if ($hashref) { |
| |
# Structure of %data: |
| |
# $data{$symb}->{$parameter}=$value; |
| |
# $data{$symb}->{'v.'.$parameter}=$version; |
| |
# since $parameter will be unescaped, we do not |
| |
# have to worry about silly parameter names... |
| |
|
| |
my $qresult=''; |
| |
my %data = (); # A hash of anonymous hashes.. |
| |
while (my ($key,$value) = each(%$hashref)) { |
| |
my ($v,$symb,$param) = split(/:/,$key); |
| |
next if ($v eq 'version' || $symb eq 'keys'); |
| |
next if (exists($data{$symb}) && |
| |
exists($data{$symb}->{$param}) && |
| |
$data{$symb}->{'v.'.$param} > $v); |
| |
$data{$symb}->{$param}=$value; |
| |
$data{$symb}->{'v.'.$param}=$v; |
| |
} |
| |
if (&untie_user_hash($hashref)) { |
| |
while (my ($symb,$param_hash) = each(%data)) { |
| |
while(my ($param,$value) = each (%$param_hash)){ |
| |
next if ($param =~ /^v\./); # Ignore versions... |
| |
# |
| |
# Just dump the symb=value pairs separated by & |
| |
# |
| |
$qresult.=$symb.':'.$param.'='.$value.'&'; |
| |
} |
| |
} |
| |
chop($qresult); |
| |
&Reply($client , \$qresult, $userinput); |
| |
} else { |
| |
&Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ". |
| |
"while attempting currentdump\n", $userinput); |
| |
} |
| |
} else { |
| |
&Failure($client, "error: ".($!+0)." tie(GDBM) Failed ". |
| |
"while attempting currentdump\n", $userinput); |
| |
} |
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("currentdump", \&dump_profile_database, 0, 1, 0); |
| |
|
| |
# |
| |
# Dump a profile database with an optional regular expression |
| |
# to match against the keys. In this dump, no effort is made |
| |
# to separate symb from version information. Presumably the |
| |
# databases that are dumped by this command are of a different |
| |
# structure. Need to look at this and improve the documentation of |
| |
# both this and the currentdump handler. |
| |
# Parameters: |
| |
# $cmd - The command keyword. |
| |
# $tail - All of the characters after the $cmd: |
| |
# These are expected to be a colon |
| |
# separated list containing: |
| |
# domain/user - identifying the user. |
| |
# namespace - identifying the database. |
| |
# regexp - optional regular expression |
| |
# that is matched against |
| |
# database keywords to do |
| |
# selective dumps. |
| |
# range - optional range of entries |
| |
# e.g., 10-20 would return the |
| |
# 10th to 19th items, etc. |
| |
# $client - Channel open on the client. |
| |
# Returns: |
| |
# 1 - Continue processing. |
| |
# Side effects: |
| |
# response is written to $client. |
| |
# |
| |
sub dump_with_regexp { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my $res = LONCAPA::Lond::dump_with_regexp($tail, $clientversion); |
| |
|
| |
if ($res =~ /^error:/) { |
| |
&Failure($client, \$res, "$cmd:$tail"); |
| |
} else { |
| |
&Reply($client, \$res, "$cmd:$tail"); |
| |
} |
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("dump", \&dump_with_regexp, 0, 1, 0); |
| |
|
| |
# Store a set of key=value pairs associated with a versioned name. |
| |
# |
| |
# Parameters: |
| |
# $cmd - Request command keyword. |
| |
# $tail - Tail of the request. This is a colon |
| |
# separated list containing: |
| |
# domain/user - User and authentication domain. |
| |
# namespace - Name of the database being modified |
| |
# rid - Resource keyword to modify. |
| |
# what - new value associated with rid. |
| |
# laststore - (optional) version=timestamp |
| |
# for most recent transaction for rid |
| |
# in namespace, when cstore was called |
| |
# |
| |
# $client - Socket open on the client. |
| |
# |
| |
# |
| |
# Returns: |
| |
# 1 (keep on processing). |
| |
# Side-Effects: |
| |
# Writes to the client |
| |
# Successful storage will cause either 'ok', or, if $laststore was included |
| |
# in the tail of the request, and the version number for the last transaction |
| |
# is larger than the version in $laststore, delay:$numtrans , where $numtrans |
| |
# is the number of store evevnts recorded for rid in namespace since |
| |
# lonnet::store() was called by the client. |
| |
# |
| |
sub store_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
chomp($tail); |
| |
my ($udom,$uname,$namespace,$rid,$what,$laststore) =split(/:/,$tail); |
| |
if ($namespace ne 'roles') { |
| |
|
| |
my @pairs=split(/\&/,$what); |
| |
my $hashref = &tie_user_hash($udom, $uname, $namespace, |
| |
&GDBM_WRCREAT(), "S", |
| |
"$rid:$what"); |
| |
if ($hashref) { |
| |
my $now = time; |
| |
my $numtrans; |
| |
if ($laststore) { |
| |
my ($previousversion,$previoustime) = split(/\=/,$laststore); |
| |
my ($lastversion,$lasttime) = (0,0); |
| |
$lastversion = $hashref->{"version:$rid"}; |
| |
if ($lastversion) { |
| |
$lasttime = $hashref->{"$lastversion:$rid:timestamp"}; |
| |
} |
| |
if (($previousversion) && ($previousversion !~ /\D/)) { |
| |
if (($lastversion > $previousversion) && ($lasttime >= $previoustime)) { |
| |
$numtrans = $lastversion - $previousversion; |
| |
} |
| |
} elsif ($lastversion) { |
| |
$numtrans = $lastversion; |
| |
} |
| |
if ($numtrans) { |
| |
$numtrans =~ s/D//g; |
| |
} |
| |
} |
| |
|
| |
$hashref->{"version:$rid"}++; |
| |
my $version=$hashref->{"version:$rid"}; |
| |
my $allkeys=''; |
| |
foreach my $pair (@pairs) { |
| |
my ($key,$value)=split(/=/,$pair); |
| |
$allkeys.=$key.':'; |
| |
$hashref->{"$version:$rid:$key"}=$value; |
| |
} |
| |
$hashref->{"$version:$rid:timestamp"}=$now; |
| |
$allkeys.='timestamp'; |
| |
$hashref->{"$version:keys:$rid"}=$allkeys; |
| |
if (&untie_user_hash($hashref)) { |
| |
my $msg = 'ok'; |
| |
if ($numtrans) { |
| |
$msg = 'delay:'.$numtrans; |
| |
} |
| |
&Reply($client, "$msg\n", $userinput); |
| |
} else { |
| |
&Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". |
| |
"while attempting store\n", $userinput); |
| |
} |
| |
} else { |
| |
&Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ". |
| |
"while attempting store\n", $userinput); |
| |
} |
| |
} else { |
| |
&Failure($client, "refused\n", $userinput); |
| |
} |
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("store", \&store_handler, 0, 1, 0); |
| |
|
| |
# Modify a set of key=value pairs associated with a versioned name. |
| |
# |
| |
# Parameters: |
| |
# $cmd - Request command keyword. |
| |
# $tail - Tail of the request. This is a colon |
| |
# separated list containing: |
| |
# domain/user - User and authentication domain. |
| |
# namespace - Name of the database being modified |
| |
# rid - Resource keyword to modify. |
| |
# v - Version item to modify |
| |
# what - new value associated with rid. |
| |
# |
| |
# $client - Socket open on the client. |
| |
# |
| |
# |
| |
# Returns: |
| |
# 1 (keep on processing). |
| |
# Side-Effects: |
| |
# Writes to the client |
| |
sub putstore_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
my ($udom,$uname,$namespace,$rid,$v,$what) =split(/:/,$tail); |
| |
if ($namespace ne 'roles') { |
| |
|
| |
chomp($what); |
| |
my $hashref = &tie_user_hash($udom, $uname, $namespace, |
| |
&GDBM_WRCREAT(), "M", |
| |
"$rid:$v:$what"); |
| |
if ($hashref) { |
| |
my $now = time; |
| |
my %data = &hash_extract($what); |
| |
my @allkeys; |
| |
while (my($key,$value) = each(%data)) { |
| |
push(@allkeys,$key); |
| |
$hashref->{"$v:$rid:$key"} = $value; |
| |
} |
| |
my $allkeys = join(':',@allkeys); |
| |
$hashref->{"$v:keys:$rid"}=$allkeys; |
| |
|
| |
if (&untie_user_hash($hashref)) { |
| |
&Reply($client, "ok\n", $userinput); |
| |
} else { |
| |
&Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". |
| |
"while attempting store\n", $userinput); |
| |
} |
| |
} else { |
| |
&Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ". |
| |
"while attempting store\n", $userinput); |
| |
} |
| |
} else { |
| |
&Failure($client, "refused\n", $userinput); |
| |
} |
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("putstore", \&putstore_handler, 0, 1, 0); |
| |
|
| |
sub hash_extract { |
| |
my ($str)=@_; |
| |
my %hash; |
| |
foreach my $pair (split(/\&/,$str)) { |
| |
my ($key,$value)=split(/=/,$pair); |
| |
$hash{$key}=$value; |
| |
} |
| |
return (%hash); |
| |
} |
| |
sub hash_to_str { |
| |
my ($hash_ref)=@_; |
| |
my $str; |
| |
foreach my $key (keys(%$hash_ref)) { |
| |
$str.=$key.'='.$hash_ref->{$key}.'&'; |
| |
} |
| |
$str=~s/\&$//; |
| |
return $str; |
| |
} |
| |
|
| |
# |
| |
# Dump out all versions of a resource that has key=value pairs associated |
| |
# with it for each version. These resources are built up via the store |
| |
# command. |
| |
# |
| |
# Parameters: |
| |
# $cmd - Command keyword. |
| |
# $tail - Remainder of the request which consists of: |
| |
# domain/user - User and auth. domain. |
| |
# namespace - name of resource database. |
| |
# rid - Resource id. |
| |
# $client - socket open on the client. |
| |
# |
| |
# Returns: |
| |
# 1 indicating the caller should not yet exit. |
| |
# Side-effects: |
| |
# Writes a reply to the client. |
| |
# The reply is a string of the following shape: |
| |
# version=current&version:keys=k1:k2...&1:k1=v1&1:k2=v2... |
| |
# Where the 1 above represents version 1. |
| |
# this continues for all pairs of keys in all versions. |
| |
# |
| |
# |
| |
# |
| |
# |
| |
sub restore_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my $userinput = "$cmd:$tail"; # Only used for logging purposes. |
| |
my ($udom,$uname,$namespace,$rid) = split(/:/,$tail); |
| |
$namespace=~s/\//\_/g; |
| |
$namespace = &LONCAPA::clean_username($namespace); |
| |
|
| |
chomp($rid); |
| |
my $qresult=''; |
| |
my $hashref = &tie_user_hash($udom, $uname, $namespace, &GDBM_READER()); |
| |
if ($hashref) { |
| |
my $version=$hashref->{"version:$rid"}; |
| |
$qresult.="version=$version&"; |
| |
my $scope; |
| |
for ($scope=1;$scope<=$version;$scope++) { |
| |
my $vkeys=$hashref->{"$scope:keys:$rid"}; |
| |
my @keys=split(/:/,$vkeys); |
| |
my $key; |
| |
$qresult.="$scope:keys=$vkeys&"; |
| |
foreach $key (@keys) { |
| |
$qresult.="$scope:$key=".$hashref->{"$scope:$rid:$key"}."&"; |
| |
} |
| |
} |
| |
if (&untie_user_hash($hashref)) { |
| |
$qresult=~s/\&$//; |
| |
&Reply( $client, \$qresult, $userinput); |
| |
} else { |
| |
&Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". |
| |
"while attempting restore\n", $userinput); |
| |
} |
| |
} else { |
| |
&Failure($client, "error: ".($!+0)." tie(GDBM) Failed ". |
| |
"while attempting restore\n", $userinput); |
| |
} |
| |
|
| |
return 1; |
| |
|
| |
|
| |
} |
| |
®ister_handler("restore", \&restore_handler, 0,1,0); |
| |
|
| |
# |
| |
# Add a chat message to a synchronous discussion board. |
| |
# |
| |
# Parameters: |
| |
# $cmd - Request keyword. |
| |
# $tail - Tail of the command. A colon separated list |
| |
# containing: |
| |
# cdom - Domain on which the chat board lives |
| |
# cnum - Course containing the chat board. |
| |
# newpost - Body of the posting. |
| |
# group - Optional group, if chat board is only |
| |
# accessible in a group within the course |
| |
# $client - Socket open on the client. |
| |
# Returns: |
| |
# 1 - Indicating caller should keep on processing. |
| |
# |
| |
# Side-effects: |
| |
# writes a reply to the client. |
| |
# |
| |
# |
| |
sub send_chat_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
|
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
my ($cdom,$cnum,$newpost,$group)=split(/\:/,$tail); |
| |
&chat_add($cdom,$cnum,$newpost,$group); |
| |
&Reply($client, "ok\n", $userinput); |
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("chatsend", \&send_chat_handler, 0, 1, 0); |
| |
|
| |
# |
| |
# Retrieve the set of chat messages from a discussion board. |
| |
# |
| |
# Parameters: |
| |
# $cmd - Command keyword that initiated the request. |
| |
# $tail - Remainder of the request after the command |
| |
# keyword. In this case a colon separated list of |
| |
# chat domain - Which discussion board. |
| |
# chat id - Discussion thread(?) |
| |
# domain/user - Authentication domain and username |
| |
# of the requesting person. |
| |
# group - Optional course group containing |
| |
# the board. |
| |
# $client - Socket open on the client program. |
| |
# Returns: |
| |
# 1 - continue processing |
| |
# Side effects: |
| |
# Response is written to the client. |
| |
# |
| |
sub retrieve_chat_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
|
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
my ($cdom,$cnum,$udom,$uname,$group)=split(/\:/,$tail); |
| |
my $reply=''; |
| |
foreach (&get_chat($cdom,$cnum,$udom,$uname,$group)) { |
| |
$reply.=&escape($_).':'; |
| |
} |
| |
$reply=~s/\:$//; |
| |
&Reply($client, \$reply, $userinput); |
| |
|
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("chatretr", \&retrieve_chat_handler, 0, 1, 0); |
| |
|
| |
# |
| |
# Initiate a query of an sql database. SQL query repsonses get put in |
| |
# a file for later retrieval. This prevents sql query results from |
| |
# bottlenecking the system. Note that with loncnew, perhaps this is |
| |
# less of an issue since multiple outstanding requests can be concurrently |
| |
# serviced. |
| |
# |
| |
# Parameters: |
| |
# $cmd - COmmand keyword that initiated the request. |
| |
# $tail - Remainder of the command after the keyword. |
| |
# For this function, this consists of a query and |
| |
# 3 arguments that are self-documentingly labelled |
| |
# in the original arg1, arg2, arg3. |
| |
# $client - Socket open on the client. |
| |
# Return: |
| |
# 1 - Indicating processing should continue. |
| |
# Side-effects: |
| |
# a reply is written to $client. |
| |
# |
| |
sub send_query_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
|
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
my ($query,$arg1,$arg2,$arg3)=split(/\:/,$tail); |
| |
$query=~s/\n*$//g; |
| |
if (($query eq 'usersearch') || ($query eq 'instdirsearch')) { |
| |
my $usersearchconf = &get_usersearch_config($currentdomainid,'directorysrch'); |
| |
my $earlyout; |
| |
if (ref($usersearchconf) eq 'HASH') { |
| |
if ($currentdomainid eq $clienthomedom) { |
| |
if ($query eq 'usersearch') { |
| |
if ($usersearchconf->{'lcavailable'} eq '0') { |
| |
$earlyout = 1; |
| |
} |
| |
} else { |
| |
if ($usersearchconf->{'available'} eq '0') { |
| |
$earlyout = 1; |
| |
} |
| |
} |
| |
} else { |
| |
if ($query eq 'usersearch') { |
| |
if ($usersearchconf->{'lclocalonly'}) { |
| |
$earlyout = 1; |
| |
} |
| |
} else { |
| |
if ($usersearchconf->{'localonly'}) { |
| |
$earlyout = 1; |
| |
} |
| |
} |
| |
} |
| |
} |
| |
if ($earlyout) { |
| |
&Reply($client, "query_not_authorized\n"); |
| |
return 1; |
| |
} |
| |
} |
| |
&Reply($client, "". &sql_reply("$clientname\&$query". |
| |
"\&$arg1"."\&$arg2"."\&$arg3")."\n", |
| |
$userinput); |
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("querysend", \&send_query_handler, 0, 1, 0); |
| |
|
| |
# |
| |
# Add a reply to an sql query. SQL queries are done asyncrhonously. |
| |
# The query is submitted via a "querysend" transaction. |
| |
# There it is passed on to the lonsql daemon, queued and issued to |
| |
# mysql. |
| |
# This transaction is invoked when the sql transaction is complete |
| |
# it stores the query results in flie and indicates query completion. |
| |
# presumably local software then fetches this response... I'm guessing |
| |
# the sequence is: lonc does a querysend, we ask lonsql to do it. |
| |
# lonsql on completion of the query interacts with the lond of our |
| |
# client to do a query reply storing two files: |
| |
# - id - The results of the query. |
| |
# - id.end - Indicating the transaction completed. |
| |
# NOTE: id is a unique id assigned to the query and querysend time. |
| |
# Parameters: |
| |
# $cmd - Command keyword that initiated this request. |
| |
# $tail - Remainder of the tail. In this case that's a colon |
| |
# separated list containing the query Id and the |
| |
# results of the query. |
| |
# $client - Socket open on the client. |
| |
# Return: |
| |
# 1 - Indicating that we should continue processing. |
| |
# Side effects: |
| |
# ok written to the client. |
| |
# |
| |
sub reply_query_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
|
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
my ($id,$reply)=split(/:/,$tail); |
| |
my $store; |
| |
my $execdir=$perlvar{'lonDaemons'}; |
| |
if ($store=IO::File->new(">$execdir/tmp/$id")) { |
| |
$reply=~s/\&/\n/g; |
| |
print $store $reply; |
| |
close $store; |
| |
my $store2=IO::File->new(">$execdir/tmp/$id.end"); |
| |
print $store2 "done\n"; |
| |
close $store2; |
| |
&Reply($client, "ok\n", $userinput); |
| |
} else { |
| |
&Failure($client, "error: ".($!+0) |
| |
." IO::File->new Failed ". |
| |
"while attempting queryreply\n", $userinput); |
| |
} |
| |
|
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("queryreply", \&reply_query_handler, 0, 1, 0); |
| |
|
| |
# |
| |
# Process the courseidput request. Not quite sure what this means |
| |
# at the system level sense. It appears a gdbm file in the |
| |
# /home/httpd/lonUsers/$domain/nohist_courseids is tied and |
| |
# a set of entries made in that database. |
| |
# |
| |
# Parameters: |
| |
# $cmd - The command keyword that initiated this request. |
| |
# $tail - Tail of the command. In this case consists of a colon |
| |
# separated list contaning the domain to apply this to and |
| |
# an ampersand separated list of keyword=value pairs. |
| |
# Each value is a colon separated list that includes: |
| |
# description, institutional code and course owner. |
| |
# For backward compatibility with versions included |
| |
# in LON-CAPA 1.1.X (and earlier) and 1.2.X, institutional |
| |
# code and/or course owner are preserved from the existing |
| |
# record when writing a new record in response to 1.1 or |
| |
# 1.2 implementations of lonnet::flushcourselogs(). |
| |
# |
| |
# $client - Socket open on the client. |
| |
# Returns: |
| |
# 1 - indicating that processing should continue |
| |
# |
| |
# Side effects: |
| |
# reply is written to the client. |
| |
# |
| |
sub put_course_id_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
|
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
my ($udom, $what) = split(/:/, $tail,2); |
| |
chomp($what); |
| |
my $now=time; |
| |
my @pairs=split(/\&/,$what); |
| |
|
| |
my $hashref = &tie_domain_hash($udom, "nohist_courseids", &GDBM_WRCREAT()); |
| |
if ($hashref) { |
| |
foreach my $pair (@pairs) { |
| |
my ($key,$courseinfo) = split(/=/,$pair,2); |
| |
$courseinfo =~ s/=/:/g; |
| |
if (defined($hashref->{$key})) { |
| |
my $value = &Apache::lonnet::thaw_unescape($hashref->{$key}); |
| |
if (ref($value) eq 'HASH') { |
| |
my @items = ('description','inst_code','owner','type'); |
| |
my @new_items = split(/:/,$courseinfo,-1); |
| |
my %storehash; |
| |
for (my $i=0; $i<@new_items; $i++) { |
| |
$storehash{$items[$i]} = &unescape($new_items[$i]); |
| |
} |
| |
$hashref->{$key} = |
| |
&Apache::lonnet::freeze_escape(\%storehash); |
| |
my $unesc_key = &unescape($key); |
| |
$hashref->{&escape('lasttime:'.$unesc_key)} = $now; |
| |
next; |
| |
} |
| |
} |
| |
my @current_items = split(/:/,$hashref->{$key},-1); |
| |
shift(@current_items); # remove description |
| |
pop(@current_items); # remove last access |
| |
my $numcurrent = scalar(@current_items); |
| |
if ($numcurrent > 3) { |
| |
$numcurrent = 3; |
| |
} |
| |
my @new_items = split(/:/,$courseinfo,-1); |
| |
my $numnew = scalar(@new_items); |
| |
if ($numcurrent > 0) { |
| |
if ($numnew <= $numcurrent) { # flushcourselogs() from pre 2.2 |
| |
for (my $j=$numcurrent-$numnew; $j>=0; $j--) { |
| |
$courseinfo .= ':'.$current_items[$numcurrent-$j-1]; |
| |
} |
| |
} |
| |
} |
| |
$hashref->{$key}=$courseinfo.':'.$now; |
| |
} |
| |
if (&untie_domain_hash($hashref)) { |
| |
&Reply( $client, "ok\n", $userinput); |
| |
} else { |
| |
&Failure($client, "error: ".($!+0) |
| |
." untie(GDBM) Failed ". |
| |
"while attempting courseidput\n", $userinput); |
| |
} |
| |
} else { |
| |
&Failure($client, "error: ".($!+0) |
| |
." tie(GDBM) Failed ". |
| |
"while attempting courseidput\n", $userinput); |
| |
} |
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("courseidput", \&put_course_id_handler, 0, 1, 0); |
| |
|
| |
sub put_course_id_hash_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
my ($udom,$mode,$what) = split(/:/, $tail,3); |
| |
chomp($what); |
| |
my $now=time; |
| |
my @pairs=split(/\&/,$what); |
| |
my $hashref = &tie_domain_hash($udom, "nohist_courseids", &GDBM_WRCREAT()); |
| |
if ($hashref) { |
| |
foreach my $pair (@pairs) { |
| |
my ($key,$value)=split(/=/,$pair); |
| |
my $unesc_key = &unescape($key); |
| |
if ($mode ne 'timeonly') { |
| |
if (!defined($hashref->{&escape('lasttime:'.$unesc_key)})) { |
| |
my $curritems = &Apache::lonnet::thaw_unescape($key); |
| |
if (ref($curritems) ne 'HASH') { |
| |
my @current_items = split(/:/,$hashref->{$key},-1); |
| |
my $lasttime = pop(@current_items); |
| |
$hashref->{&escape('lasttime:'.$unesc_key)} = $lasttime; |
| |
} else { |
| |
$hashref->{&escape('lasttime:'.$unesc_key)} = ''; |
| |
} |
| |
} |
| |
$hashref->{$key} = $value; |
| |
} |
| |
if ($mode ne 'notime') { |
| |
$hashref->{&escape('lasttime:'.$unesc_key)} = $now; |
| |
} |
| |
} |
| |
if (&untie_domain_hash($hashref)) { |
| |
&Reply($client, "ok\n", $userinput); |
| |
} else { |
| |
&Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". |
| |
"while attempting courseidputhash\n", $userinput); |
| |
} |
| |
} else { |
| |
&Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ". |
| |
"while attempting courseidputhash\n", $userinput); |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("courseidputhash", \&put_course_id_hash_handler, 0, 1, 0); |
| |
|
| |
# Retrieves the value of a course id resource keyword pattern |
| |
# defined since a starting date. Both the starting date and the |
| |
# keyword pattern are optional. If the starting date is not supplied it |
| |
# is treated as the beginning of time. If the pattern is not found, |
| |
# it is treatred as "." matching everything. |
| |
# |
| |
# Parameters: |
| |
# $cmd - Command keyword that resulted in us being dispatched. |
| |
# $tail - The remainder of the command that, in this case, consists |
| |
# of a colon separated list of: |
| |
# domain - The domain in which the course database is |
| |
# defined. |
| |
# since - Optional parameter describing the minimum |
| |
# time of definition(?) of the resources that |
| |
# will match the dump. |
| |
# description - regular expression that is used to filter |
| |
# the dump. Only keywords matching this regexp |
| |
# will be used. |
| |
# institutional code - optional supplied code to filter |
| |
# the dump. Only courses with an institutional code |
| |
# that match the supplied code will be returned. |
| |
# owner - optional supplied username and domain of owner to |
| |
# filter the dump. Only courses for which the course |
| |
# owner matches the supplied username and/or domain |
| |
# will be returned. Pre-2.2.0 legacy entries from |
| |
# nohist_courseiddump will only contain usernames. |
| |
# type - optional parameter for selection |
| |
# regexp_ok - if 1 or -1 allow the supplied institutional code |
| |
# filter to behave as a regular expression: |
| |
# 1 will not exclude the course if the instcode matches the RE |
| |
# -1 will exclude the course if the instcode matches the RE |
| |
# rtn_as_hash - whether to return the information available for |
| |
# each matched item as a frozen hash of all |
| |
# key, value pairs in the item's hash, or as a |
| |
# colon-separated list of (in order) description, |
| |
# institutional code, and course owner. |
| |
# selfenrollonly - filter by courses allowing self-enrollment |
| |
# now or in the future (selfenrollonly = 1). |
| |
# catfilter - filter by course category, assigned to a course |
| |
# using manually defined categories (i.e., not |
| |
# self-cataloging based on on institutional code). |
| |
# showhidden - include course in results even if course |
| |
# was set to be excluded from course catalog (DC only). |
| |
# caller - if set to 'coursecatalog', courses set to be hidden |
| |
# from course catalog will be excluded from results (unless |
| |
# overridden by "showhidden". |
| |
# cloner - escaped username:domain of course cloner (if picking course to |
| |
# clone). |
| |
# cc_clone_list - escaped comma separated list of courses for which |
| |
# course cloner has active CC role (and so can clone |
| |
# automatically). |
| |
# cloneonly - filter by courses for which cloner has rights to clone. |
| |
# createdbefore - include courses for which creation date preceeded this date. |
| |
# createdafter - include courses for which creation date followed this date. |
| |
# creationcontext - include courses created in specified context |
| |
# |
| |
# domcloner - flag to indicate if user can create CCs in course's domain. |
| |
# If so, ability to clone course is automatic. |
| |
# hasuniquecode - filter by courses for which a six character unique code has |
| |
# been set. |
| |
# |
| |
# $client - The socket open on the client. |
| |
# Returns: |
| |
# 1 - Continue processing. |
| |
# Side Effects: |
| |
# a reply is written to $client. |
| |
sub dump_course_id_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
my ($udom,$since,$description,$instcodefilter,$ownerfilter,$coursefilter, |
| |
$typefilter,$regexp_ok,$rtn_as_hash,$selfenrollonly,$catfilter,$showhidden, |
| |
$caller,$cloner,$cc_clone_list,$cloneonly,$createdbefore,$createdafter, |
| |
$creationcontext,$domcloner,$hasuniquecode) =split(/:/,$tail); |
| |
my $now = time; |
| |
my ($cloneruname,$clonerudom,%cc_clone); |
| |
if (defined($description)) { |
| |
$description=&unescape($description); |
| |
} else { |
| |
$description='.'; |
| |
} |
| |
if (defined($instcodefilter)) { |
| |
$instcodefilter=&unescape($instcodefilter); |
| |
} else { |
| |
$instcodefilter='.'; |
| |
} |
| |
my ($ownerunamefilter,$ownerdomfilter); |
| |
if (defined($ownerfilter)) { |
| |
$ownerfilter=&unescape($ownerfilter); |
| |
if ($ownerfilter ne '.' && defined($ownerfilter)) { |
| |
if ($ownerfilter =~ /^([^:]*):([^:]*)$/) { |
| |
$ownerunamefilter = $1; |
| |
$ownerdomfilter = $2; |
| |
} else { |
| |
$ownerunamefilter = $ownerfilter; |
| |
$ownerdomfilter = ''; |
| |
} |
| |
} |
| |
} else { |
| |
$ownerfilter='.'; |
| |
} |
| |
|
| |
if (defined($coursefilter)) { |
| |
$coursefilter=&unescape($coursefilter); |
| |
} else { |
| |
$coursefilter='.'; |
| |
} |
| |
if (defined($typefilter)) { |
| |
$typefilter=&unescape($typefilter); |
| |
} else { |
| |
$typefilter='.'; |
| |
} |
| |
if (defined($regexp_ok)) { |
| |
$regexp_ok=&unescape($regexp_ok); |
| |
} |
| |
if (defined($catfilter)) { |
| |
$catfilter=&unescape($catfilter); |
| |
} |
| |
if (defined($cloner)) { |
| |
$cloner = &unescape($cloner); |
| |
($cloneruname,$clonerudom) = ($cloner =~ /^($LONCAPA::match_username):($LONCAPA::match_domain)$/); |
| |
} |
| |
if (defined($cc_clone_list)) { |
| |
$cc_clone_list = &unescape($cc_clone_list); |
| |
my @cc_cloners = split('&',$cc_clone_list); |
| |
foreach my $cid (@cc_cloners) { |
| |
my ($clonedom,$clonenum) = split(':',$cid); |
| |
next if ($clonedom ne $udom); |
| |
$cc_clone{$clonedom.'_'.$clonenum} = 1; |
| |
} |
| |
} |
| |
if ($createdbefore ne '') { |
| |
$createdbefore = &unescape($createdbefore); |
| |
} else { |
| |
$createdbefore = 0; |
| |
} |
| |
if ($createdafter ne '') { |
| |
$createdafter = &unescape($createdafter); |
| |
} else { |
| |
$createdafter = 0; |
| |
} |
| |
if ($creationcontext ne '') { |
| |
$creationcontext = &unescape($creationcontext); |
| |
} else { |
| |
$creationcontext = '.'; |
| |
} |
| |
unless ($hasuniquecode) { |
| |
$hasuniquecode = '.'; |
| |
} |
| |
my $unpack = 1; |
| |
if ($description eq '.' && $instcodefilter eq '.' && $ownerfilter eq '.' && |
| |
$typefilter eq '.') { |
| |
$unpack = 0; |
| |
} |
| |
if (!defined($since)) { $since=0; } |
| |
my $qresult=''; |
| |
my $hashref = &tie_domain_hash($udom, "nohist_courseids", &GDBM_WRCREAT()); |
| |
if ($hashref) { |
| |
while (my ($key,$value) = each(%$hashref)) { |
| |
my ($unesc_key,$lasttime_key,$lasttime,$is_hash,%val, |
| |
%unesc_val,$selfenroll_end,$selfenroll_types,$created, |
| |
$context); |
| |
$unesc_key = &unescape($key); |
| |
if ($unesc_key =~ /^lasttime:/) { |
| |
next; |
| |
} else { |
| |
$lasttime_key = &escape('lasttime:'.$unesc_key); |
| |
} |
| |
if ($hashref->{$lasttime_key} ne '') { |
| |
$lasttime = $hashref->{$lasttime_key}; |
| |
next if ($lasttime<$since); |
| |
} |
| |
my ($canclone,$valchange); |
| |
my $items = &Apache::lonnet::thaw_unescape($value); |
| |
if (ref($items) eq 'HASH') { |
| |
if ($hashref->{$lasttime_key} eq '') { |
| |
next if ($since > 1); |
| |
} |
| |
$is_hash = 1; |
| |
if ($domcloner) { |
| |
$canclone = 1; |
| |
} elsif (defined($clonerudom)) { |
| |
if ($items->{'cloners'}) { |
| |
my @cloneable = split(',',$items->{'cloners'}); |
| |
if (@cloneable) { |
| |
if (grep(/^\*$/,@cloneable)) { |
| |
$canclone = 1; |
| |
} elsif (grep(/^\*:\Q$clonerudom\E$/,@cloneable)) { |
| |
$canclone = 1; |
| |
} elsif (grep(/^\Q$cloneruname\E:\Q$clonerudom\E$/,@cloneable)) { |
| |
$canclone = 1; |
| |
} |
| |
} |
| |
unless ($canclone) { |
| |
if ($cloneruname ne '' && $clonerudom ne '') { |
| |
if ($cc_clone{$unesc_key}) { |
| |
$canclone = 1; |
| |
$items->{'cloners'} .= ','.$cloneruname.':'. |
| |
$clonerudom; |
| |
$valchange = 1; |
| |
} |
| |
} |
| |
} |
| |
} elsif (defined($cloneruname)) { |
| |
if ($cc_clone{$unesc_key}) { |
| |
$canclone = 1; |
| |
$items->{'cloners'} = $cloneruname.':'.$clonerudom; |
| |
$valchange = 1; |
| |
} |
| |
unless ($canclone) { |
| |
if ($items->{'owner'} =~ /:/) { |
| |
if ($items->{'owner'} eq $cloner) { |
| |
$canclone = 1; |
| |
} |
| |
} elsif ($cloner eq $items->{'owner'}.':'.$udom) { |
| |
$canclone = 1; |
| |
} |
| |
if ($canclone) { |
| |
$items->{'cloners'} = $cloneruname.':'.$clonerudom; |
| |
$valchange = 1; |
| |
} |
| |
} |
| |
} |
| |
} |
| |
if ($unpack || !$rtn_as_hash) { |
| |
$unesc_val{'descr'} = $items->{'description'}; |
| |
$unesc_val{'inst_code'} = $items->{'inst_code'}; |
| |
$unesc_val{'owner'} = $items->{'owner'}; |
| |
$unesc_val{'type'} = $items->{'type'}; |
| |
$unesc_val{'cloners'} = $items->{'cloners'}; |
| |
$unesc_val{'created'} = $items->{'created'}; |
| |
$unesc_val{'context'} = $items->{'context'}; |
| |
} |
| |
$selfenroll_types = $items->{'selfenroll_types'}; |
| |
$selfenroll_end = $items->{'selfenroll_end_date'}; |
| |
$created = $items->{'created'}; |
| |
$context = $items->{'context'}; |
| |
if ($hasuniquecode ne '.') { |
| |
next unless ($items->{'uniquecode'}); |
| |
} |
| |
if ($selfenrollonly) { |
| |
next if (!$selfenroll_types); |
| |
if (($selfenroll_end > 0) && ($selfenroll_end <= $now)) { |
| |
next; |
| |
} |
| |
} |
| |
if ($creationcontext ne '.') { |
| |
next if (($context ne '') && ($context ne $creationcontext)); |
| |
} |
| |
if ($createdbefore > 0) { |
| |
next if (($created eq '') || ($created > $createdbefore)); |
| |
} |
| |
if ($createdafter > 0) { |
| |
next if (($created eq '') || ($created <= $createdafter)); |
| |
} |
| |
if ($catfilter ne '') { |
| |
next if ($items->{'categories'} eq ''); |
| |
my @categories = split('&',$items->{'categories'}); |
| |
next if (@categories == 0); |
| |
my @subcats = split('&',$catfilter); |
| |
my $matchcat = 0; |
| |
foreach my $cat (@categories) { |
| |
if (grep(/^\Q$cat\E$/,@subcats)) { |
| |
$matchcat = 1; |
| |
last; |
| |
} |
| |
} |
| |
next if (!$matchcat); |
| |
} |
| |
if ($caller eq 'coursecatalog') { |
| |
if ($items->{'hidefromcat'} eq 'yes') { |
| |
next if !$showhidden; |
| |
} |
| |
} |
| |
} else { |
| |
next if ($catfilter ne ''); |
| |
next if ($selfenrollonly); |
| |
next if ($createdbefore || $createdafter); |
| |
next if ($creationcontext ne '.'); |
| |
if ((defined($clonerudom)) && (defined($cloneruname))) { |
| |
if ($cc_clone{$unesc_key}) { |
| |
$canclone = 1; |
| |
$val{'cloners'} = &escape($cloneruname.':'.$clonerudom); |
| |
} |
| |
} |
| |
$is_hash = 0; |
| |
my @courseitems = split(/:/,$value); |
| |
$lasttime = pop(@courseitems); |
| |
if ($hashref->{$lasttime_key} eq '') { |
| |
next if ($lasttime<$since); |
| |
} |
| |
($val{'descr'},$val{'inst_code'},$val{'owner'},$val{'type'}) = @courseitems; |
| |
} |
| |
if ($cloneonly) { |
| |
next unless ($canclone); |
| |
} |
| |
my $match = 1; |
| |
if ($description ne '.') { |
| |
if (!$is_hash) { |
| |
$unesc_val{'descr'} = &unescape($val{'descr'}); |
| |
} |
| |
if (eval{$unesc_val{'descr'} !~ /\Q$description\E/i}) { |
| |
$match = 0; |
| |
} |
| |
} |
| |
if ($instcodefilter ne '.') { |
| |
if (!$is_hash) { |
| |
$unesc_val{'inst_code'} = &unescape($val{'inst_code'}); |
| |
} |
| |
if ($regexp_ok == 1) { |
| |
if (eval{$unesc_val{'inst_code'} !~ /$instcodefilter/}) { |
| |
$match = 0; |
| |
} |
| |
} elsif ($regexp_ok == -1) { |
| |
if (eval{$unesc_val{'inst_code'} =~ /$instcodefilter/}) { |
| |
$match = 0; |
| |
} |
| |
} else { |
| |
if (eval{$unesc_val{'inst_code'} !~ /\Q$instcodefilter\E/i}) { |
| |
$match = 0; |
| |
} |
| |
} |
| |
} |
| |
if ($ownerfilter ne '.') { |
| |
if (!$is_hash) { |
| |
$unesc_val{'owner'} = &unescape($val{'owner'}); |
| |
} |
| |
if (($ownerunamefilter ne '') && ($ownerdomfilter ne '')) { |
| |
if ($unesc_val{'owner'} =~ /:/) { |
| |
if (eval{$unesc_val{'owner'} !~ |
| |
/\Q$ownerunamefilter\E:\Q$ownerdomfilter\E$/i}) { |
| |
$match = 0; |
| |
} |
| |
} else { |
| |
if (eval{$unesc_val{'owner'} !~ /\Q$ownerunamefilter\E/i}) { |
| |
$match = 0; |
| |
} |
| |
} |
| |
} elsif ($ownerunamefilter ne '') { |
| |
if ($unesc_val{'owner'} =~ /:/) { |
| |
if (eval{$unesc_val{'owner'} !~ /\Q$ownerunamefilter\E:[^:]+$/i}) { |
| |
$match = 0; |
| |
} |
| |
} else { |
| |
if (eval{$unesc_val{'owner'} !~ /\Q$ownerunamefilter\E/i}) { |
| |
$match = 0; |
| |
} |
| |
} |
| |
} elsif ($ownerdomfilter ne '') { |
| |
if ($unesc_val{'owner'} =~ /:/) { |
| |
if (eval{$unesc_val{'owner'} !~ /^[^:]+:\Q$ownerdomfilter\E/}) { |
| |
$match = 0; |
| |
} |
| |
} else { |
| |
if ($ownerdomfilter ne $udom) { |
| |
$match = 0; |
| |
} |
| |
} |
| |
} |
| |
} |
| |
if ($coursefilter ne '.') { |
| |
if (eval{$unesc_key !~ /^$udom(_)\Q$coursefilter\E$/}) { |
| |
$match = 0; |
| |
} |
| |
} |
| |
if ($typefilter ne '.') { |
| |
if (!$is_hash) { |
| |
$unesc_val{'type'} = &unescape($val{'type'}); |
| |
} |
| |
if ($unesc_val{'type'} eq '') { |
| |
if ($typefilter ne 'Course') { |
| |
$match = 0; |
| |
} |
| |
} else { |
| |
if (eval{$unesc_val{'type'} !~ /^\Q$typefilter\E$/}) { |
| |
$match = 0; |
| |
} |
| |
} |
| |
} |
| |
if ($match == 1) { |
| |
if ($rtn_as_hash) { |
| |
if ($is_hash) { |
| |
if ($valchange) { |
| |
my $newvalue = &Apache::lonnet::freeze_escape($items); |
| |
$qresult.=$key.'='.$newvalue.'&'; |
| |
} else { |
| |
$qresult.=$key.'='.$value.'&'; |
| |
} |
| |
} else { |
| |
my %rtnhash = ( 'description' => &unescape($val{'descr'}), |
| |
'inst_code' => &unescape($val{'inst_code'}), |
| |
'owner' => &unescape($val{'owner'}), |
| |
'type' => &unescape($val{'type'}), |
| |
'cloners' => &unescape($val{'cloners'}), |
| |
); |
| |
my $items = &Apache::lonnet::freeze_escape(\%rtnhash); |
| |
$qresult.=$key.'='.$items.'&'; |
| |
} |
| |
} else { |
| |
if ($is_hash) { |
| |
$qresult .= $key.'='.&escape($unesc_val{'descr'}).':'. |
| |
&escape($unesc_val{'inst_code'}).':'. |
| |
&escape($unesc_val{'owner'}).'&'; |
| |
} else { |
| |
$qresult .= $key.'='.$val{'descr'}.':'.$val{'inst_code'}. |
| |
':'.$val{'owner'}.'&'; |
| |
} |
| |
} |
| |
} |
| |
} |
| |
if (&untie_domain_hash($hashref)) { |
| |
chop($qresult); |
| |
&Reply($client, \$qresult, $userinput); |
| |
} else { |
| |
&Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". |
| |
"while attempting courseiddump\n", $userinput); |
| |
} |
| |
} else { |
| |
&Failure($client, "error: ".($!+0)." tie(GDBM) Failed ". |
| |
"while attempting courseiddump\n", $userinput); |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("courseiddump", \&dump_course_id_handler, 0, 1, 0); |
| |
|
| |
sub course_lastaccess_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
my ($cdom,$cnum) = split(':',$tail); |
| |
my (%lastaccess,$qresult); |
| |
my $hashref = &tie_domain_hash($cdom, "nohist_courseids", &GDBM_WRCREAT()); |
| |
if ($hashref) { |
| |
while (my ($key,$value) = each(%$hashref)) { |
| |
my ($unesc_key,$lasttime); |
| |
$unesc_key = &unescape($key); |
| |
if ($cnum) { |
| |
next unless ($unesc_key =~ /\Q$cdom\E_\Q$cnum\E$/); |
| |
} |
| |
if ($unesc_key =~ /^lasttime:($LONCAPA::match_domain\_$LONCAPA::match_courseid)/) { |
| |
$lastaccess{$1} = $value; |
| |
} else { |
| |
my $items = &Apache::lonnet::thaw_unescape($value); |
| |
if (ref($items) eq 'HASH') { |
| |
unless ($lastaccess{$unesc_key}) { |
| |
$lastaccess{$unesc_key} = ''; |
| |
} |
| |
} else { |
| |
my @courseitems = split(':',$value); |
| |
$lastaccess{$unesc_key} = pop(@courseitems); |
| |
} |
| |
} |
| |
} |
| |
foreach my $cid (sort(keys(%lastaccess))) { |
| |
$qresult.=&escape($cid).'='.$lastaccess{$cid}.'&'; |
| |
} |
| |
if (&untie_domain_hash($hashref)) { |
| |
if ($qresult) { |
| |
chop($qresult); |
| |
} |
| |
&Reply($client, \$qresult, $userinput); |
| |
} else { |
| |
&Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". |
| |
"while attempting lastacourseaccess\n", $userinput); |
| |
} |
| |
} else { |
| |
&Failure($client, "error: ".($!+0)." tie(GDBM) Failed ". |
| |
"while attempting lastcourseaccess\n", $userinput); |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("courselastaccess",\&course_lastaccess_handler, 0, 1, 0); |
| |
|
| |
sub course_sessions_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
my ($cdom,$cnum,$lastactivity) = split(':',$tail); |
| |
my $dbsuffix = '_'.$cdom.'_'.$cnum.'.db'; |
| |
my (%sessions,$qresult); |
| |
my $now=time; |
| |
if (opendir(DIR,$perlvar{'lonIDsDir'})) { |
| |
my $filename; |
| |
while ($filename=readdir(DIR)) { |
| |
next if ($filename=~/^\./); |
| |
next if ($filename=~/^publicuser_/); |
| |
next if ($filename=~/^[a-f0-9]+_(linked|lti_\d+)\.id$/); |
| |
if ($filename =~ /^($LONCAPA::match_username)_\d+_($LONCAPA::match_domain)_/) { |
| |
my ($uname,$udom) = ($1,$2); |
| |
next unless (-e "$perlvar{'lonDaemons'}/tmp/$uname$dbsuffix"); |
| |
my $mtime = (stat("$perlvar{'lonIDsDir'}/$filename"))[9]; |
| |
if ($lastactivity < 0) { |
| |
next if ($mtime-$now > $lastactivity); |
| |
} else { |
| |
next if ($now-$mtime > $lastactivity); |
| |
} |
| |
$sessions{$uname.':'.$udom} = $mtime; |
| |
} |
| |
} |
| |
closedir(DIR); |
| |
} |
| |
foreach my $user (keys(%sessions)) { |
| |
$qresult.=&escape($user).'='.$sessions{$user}.'&'; |
| |
} |
| |
if ($qresult) { |
| |
chop($qresult); |
| |
} |
| |
&Reply($client, \$qresult, $userinput); |
| |
return 1; |
| |
} |
| |
®ister_handler("coursesessions",\&course_sessions_handler, 0, 1, 0); |
| |
|
| |
# |
| |
# Puts an unencrypted entry in a namespace db file at the domain level |
| |
# |
| |
# Parameters: |
| |
# $cmd - The command that got us here. |
| |
# $tail - Tail of the command (remaining parameters). |
| |
# $client - File descriptor connected to client. |
| |
# Returns |
| |
# 0 - Requested to exit, caller should shut down. |
| |
# 1 - Continue processing. |
| |
# Side effects: |
| |
# reply is written to $client. |
| |
# |
| |
sub put_domain_handler { |
| |
my ($cmd,$tail,$client) = @_; |
| |
|
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
my ($udom,$namespace,$what) =split(/:/,$tail,3); |
| |
chomp($what); |
| |
my @pairs=split(/\&/,$what); |
| |
my $hashref = &tie_domain_hash($udom, "$namespace", &GDBM_WRCREAT(), |
| |
"P", $what); |
| |
if ($hashref) { |
| |
foreach my $pair (@pairs) { |
| |
my ($key,$value)=split(/=/,$pair); |
| |
$hashref->{$key}=$value; |
| |
} |
| |
if (&untie_domain_hash($hashref)) { |
| |
&Reply($client, "ok\n", $userinput); |
| |
} else { |
| |
&Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". |
| |
"while attempting putdom\n", $userinput); |
| |
} |
| |
} else { |
| |
&Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ". |
| |
"while attempting putdom\n", $userinput); |
| |
} |
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("putdom", \&put_domain_handler, 0, 1, 0); |
| |
|
| |
# Unencrypted get from the namespace database file at the domain level. |
| |
# This function retrieves a keyed item from a specific named database in the |
| |
# domain directory. |
| |
# |
| |
# Parameters: |
| |
# $cmd - Command request keyword (getdom). |
| |
# $tail - Tail of the command. This is a colon separated list |
| |
# consisting of the domain and the 'namespace' |
| |
# which selects the gdbm file to do the lookup in, |
| |
# & separated list of keys to lookup. Note that |
| |
# the values are returned as an & separated list too. |
| |
# $client - File descriptor open on the client. |
| |
# Returns: |
| |
# 1 - Continue processing. |
| |
# 0 - Exit. |
| |
# Side effects: |
| |
# reply is written to $client. |
| |
# |
| |
|
| |
sub get_domain_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
my ($udom,$namespace,$what)=split(/:/,$tail,3); |
| |
my $res = LONCAPA::Lond::get_dom($userinput); |
| |
if ($res =~ /^error:/) { |
| |
&Failure($client, \$res, $userinput); |
| |
} else { |
| |
&Reply($client, \$res, $userinput); |
| |
} |
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("getdom", \&get_domain_handler, 0, 1, 0); |
| |
|
| |
# |
| |
# Puts an id to a domains id database. |
| |
# |
| |
# Parameters: |
| |
# $cmd - The command that triggered us. |
| |
# $tail - Remainder of the request other than the command. This is a |
| |
# colon separated list containing: |
| |
# $domain - The domain for which we are writing the id. |
| |
# $pairs - The id info to write... this is and & separated list |
| |
# of keyword=value. |
| |
# $client - Socket open on the client. |
| |
# Returns: |
| |
# 1 - Continue processing. |
| |
# Side effects: |
| |
# reply is written to $client. |
| |
# |
| |
sub put_id_handler { |
| |
my ($cmd,$tail,$client) = @_; |
| |
|
| |
|
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
my ($udom,$what)=split(/:/,$tail); |
| |
chomp($what); |
| |
my @pairs=split(/\&/,$what); |
| |
my $hashref = &tie_domain_hash($udom, "ids", &GDBM_WRCREAT(), |
| |
"P", $what); |
| |
if ($hashref) { |
| |
foreach my $pair (@pairs) { |
| |
my ($key,$value)=split(/=/,$pair); |
| |
$hashref->{$key}=$value; |
| |
} |
| |
if (&untie_domain_hash($hashref)) { |
| |
&Reply($client, "ok\n", $userinput); |
| |
} else { |
| |
&Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". |
| |
"while attempting idput\n", $userinput); |
| |
} |
| |
} else { |
| |
&Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ". |
| |
"while attempting idput\n", $userinput); |
| |
} |
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("idput", \&put_id_handler, 0, 1, 0); |
| |
|
| |
# |
| |
# Retrieves a set of id values from the id database. |
| |
# Returns an & separated list of results, one for each requested id to the |
| |
# client. |
| |
# |
| |
# Parameters: |
| |
# $cmd - Command keyword that caused us to be dispatched. |
| |
# $tail - Tail of the command. Consists of a colon separated: |
| |
# domain - the domain whose id table we dump |
| |
# ids Consists of an & separated list of |
| |
# id keywords whose values will be fetched. |
| |
# nonexisting keywords will have an empty value. |
| |
# $client - Socket open on the client. |
| |
# |
| |
# Returns: |
| |
# 1 - indicating processing should continue. |
| |
# Side effects: |
| |
# An & separated list of results is written to $client. |
| |
# |
| |
sub get_id_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
|
| |
my $userinput = "$client:$tail"; |
| |
|
| |
my ($udom,$what)=split(/:/,$tail); |
| |
chomp($what); |
| |
my @queries=split(/\&/,$what); |
| |
my $qresult=''; |
| |
my $hashref = &tie_domain_hash($udom, "ids", &GDBM_READER()); |
| |
if ($hashref) { |
| |
for (my $i=0;$i<=$#queries;$i++) { |
| |
$qresult.="$hashref->{$queries[$i]}&"; |
| |
} |
| |
if (&untie_domain_hash($hashref)) { |
| |
$qresult=~s/\&$//; |
| |
&Reply($client, \$qresult, $userinput); |
| |
} else { |
| |
&Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ". |
| |
"while attempting idget\n",$userinput); |
| |
} |
| |
} else { |
| |
&Failure($client, "error: ".($!+0)." tie(GDBM) Failed ". |
| |
"while attempting idget\n",$userinput); |
| |
} |
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("idget", \&get_id_handler, 0, 1, 0); |
| |
|
| |
# Deletes one or more ids in a domain's id database. |
| |
# |
| |
# Parameters: |
| |
# $cmd - Command keyword (iddel). |
| |
# $tail - Command tail. In this case a colon |
| |
# separated list containing: |
| |
# The domain for which we are deleting the id(s). |
| |
# &-separated list of id(s) to delete. |
| |
# $client - File open on client socket. |
| |
# Returns: |
| |
# 1 - Continue processing |
| |
# 0 - Exit server. |
| |
# |
| |
# |
| |
|
| |
sub del_id_handler { |
| |
my ($cmd,$tail,$client) = @_; |
| |
|
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
my ($udom,$what)=split(/:/,$tail); |
| |
chomp($what); |
| |
my $hashref = &tie_domain_hash($udom, "ids", &GDBM_WRCREAT(), |
| |
"D", $what); |
| |
if ($hashref) { |
| |
my @keys=split(/\&/,$what); |
| |
foreach my $key (@keys) { |
| |
delete($hashref->{$key}); |
| |
} |
| |
if (&untie_user_hash($hashref)) { |
| |
&Reply($client, "ok\n", $userinput); |
| |
} else { |
| |
&Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". |
| |
"while attempting iddel\n", $userinput); |
| |
} |
| |
} else { |
| |
&Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ". |
| |
"while attempting iddel\n", $userinput); |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("iddel", \&del_id_handler, 0, 1, 0); |
| |
|
| |
# |
| |
# Puts broadcast e-mail sent by Domain Coordinator in nohist_dcmail database |
| |
# |
| |
# Parameters |
| |
# $cmd - Command keyword that caused us to be dispatched. |
| |
# $tail - Tail of the command. Consists of a colon separated: |
| |
# domain - the domain whose dcmail we are recording |
| |
# email Consists of key=value pair |
| |
# where key is unique msgid |
| |
# and value is message (in XML) |
| |
# $client - Socket open on the client. |
| |
# |
| |
# Returns: |
| |
# 1 - indicating processing should continue. |
| |
# Side effects |
| |
# reply is written to $client. |
| |
# |
| |
sub put_dcmail_handler { |
| |
my ($cmd,$tail,$client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
|
| |
my ($udom,$what)=split(/:/,$tail); |
| |
chomp($what); |
| |
my $hashref = &tie_domain_hash($udom, "nohist_dcmail", &GDBM_WRCREAT()); |
| |
if ($hashref) { |
| |
my ($key,$value)=split(/=/,$what); |
| |
$hashref->{$key}=$value; |
| |
} |
| |
if (&untie_domain_hash($hashref)) { |
| |
&Reply($client, "ok\n", $userinput); |
| |
} else { |
| |
&Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". |
| |
"while attempting dcmailput\n", $userinput); |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("dcmailput", \&put_dcmail_handler, 0, 1, 0); |
| |
|
| |
# |
| |
# Retrieves broadcast e-mail from nohist_dcmail database |
| |
# Returns to client an & separated list of key=value pairs, |
| |
# where key is msgid and value is message information. |
| |
# |
| |
# Parameters |
| |
# $cmd - Command keyword that caused us to be dispatched. |
| |
# $tail - Tail of the command. Consists of a colon separated: |
| |
# domain - the domain whose dcmail table we dump |
| |
# startfilter - beginning of time window |
| |
# endfilter - end of time window |
| |
# sendersfilter - & separated list of username:domain |
| |
# for senders to search for. |
| |
# $client - Socket open on the client. |
| |
# |
| |
# Returns: |
| |
# 1 - indicating processing should continue. |
| |
# Side effects |
| |
# reply (& separated list of msgid=messageinfo pairs) is |
| |
# written to $client. |
| |
# |
| |
sub dump_dcmail_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my $userinput = "$cmd:$tail"; |
| |
my ($udom,$startfilter,$endfilter,$sendersfilter) = split(/:/,$tail); |
| |
chomp($sendersfilter); |
| |
my @senders = (); |
| |
if (defined($startfilter)) { |
| |
$startfilter=&unescape($startfilter); |
| |
} else { |
| |
$startfilter='.'; |
| |
} |
| |
if (defined($endfilter)) { |
| |
$endfilter=&unescape($endfilter); |
| |
} else { |
| |
$endfilter='.'; |
| |
} |
| |
if (defined($sendersfilter)) { |
| |
$sendersfilter=&unescape($sendersfilter); |
| |
@senders = map { &unescape($_) } split(/\&/,$sendersfilter); |
| |
} |
| |
|
| |
my $qresult=''; |
| |
my $hashref = &tie_domain_hash($udom, "nohist_dcmail", &GDBM_WRCREAT()); |
| |
if ($hashref) { |
| |
while (my ($key,$value) = each(%$hashref)) { |
| |
my $match = 1; |
| |
my ($timestamp,$subj,$uname,$udom) = |
| |
split(/:/,&unescape(&unescape($key)),5); # yes, twice really |
| |
$subj = &unescape($subj); |
| |
unless ($startfilter eq '.' || !defined($startfilter)) { |
| |
if ($timestamp < $startfilter) { |
| |
$match = 0; |
| |
} |
| |
} |
| |
unless ($endfilter eq '.' || !defined($endfilter)) { |
| |
if ($timestamp > $endfilter) { |
| |
$match = 0; |
| |
} |
| |
} |
| |
unless (@senders < 1) { |
| |
unless (grep/^$uname:$udom$/,@senders) { |
| |
$match = 0; |
| |
} |
| |
} |
| |
if ($match == 1) { |
| |
$qresult.=$key.'='.$value.'&'; |
| |
} |
| |
} |
| |
if (&untie_domain_hash($hashref)) { |
| |
chop($qresult); |
| |
&Reply($client, \$qresult, $userinput); |
| |
} else { |
| |
&Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". |
| |
"while attempting dcmaildump\n", $userinput); |
| |
} |
| |
} else { |
| |
&Failure($client, "error: ".($!+0)." tie(GDBM) Failed ". |
| |
"while attempting dcmaildump\n", $userinput); |
| |
} |
| |
return 1; |
| |
} |
| |
|
| |
®ister_handler("dcmaildump", \&dump_dcmail_handler, 0, 1, 0); |
| |
|
| |
# |
| |
# Puts domain roles in nohist_domainroles database |
| |
# |
| |
# Parameters |
| |
# $cmd - Command keyword that caused us to be dispatched. |
| |
# $tail - Tail of the command. Consists of a colon separated: |
| |
# domain - the domain whose roles we are recording |
| |
# role - Consists of key=value pair |
| |
# where key is unique role |
| |
# and value is start/end date information |
| |
# $client - Socket open on the client. |
| |
# |
| |
# Returns: |
| |
# 1 - indicating processing should continue. |
| |
# Side effects |
| |
# reply is written to $client. |
| |
# |
| |
|
| |
sub put_domainroles_handler { |
| |
my ($cmd,$tail,$client) = @_; |
| |
|
| |
my $userinput = "$cmd:$tail"; |
| |
my ($udom,$what)=split(/:/,$tail); |
| |
chomp($what); |
| |
my @pairs=split(/\&/,$what); |
| |
my $hashref = &tie_domain_hash($udom, "nohist_domainroles", &GDBM_WRCREAT()); |
| |
if ($hashref) { |
| |
foreach my $pair (@pairs) { |
| |
my ($key,$value)=split(/=/,$pair); |
| |
$hashref->{$key}=$value; |
| |
} |
| |
if (&untie_domain_hash($hashref)) { |
| |
&Reply($client, "ok\n", $userinput); |
| |
} else { |
| |
&Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". |
| |
"while attempting domroleput\n", $userinput); |
| |
} |
| |
} else { |
| |
&Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ". |
| |
"while attempting domroleput\n", $userinput); |
| |
} |
| |
|
| |
return 1; |
| |
} |
| |
|
| |
®ister_handler("domroleput", \&put_domainroles_handler, 0, 1, 0); |
| |
|
| |
# |
| |
# Retrieves domain roles from nohist_domainroles database |
| |
# Returns to client an & separated list of key=value pairs, |
| |
# where key is role and value is start and end date information. |
| |
# |
| |
# Parameters |
| |
# $cmd - Command keyword that caused us to be dispatched. |
| |
# $tail - Tail of the command. Consists of a colon separated: |
| |
# domain - the domain whose domain roles table we dump |
| |
# $client - Socket open on the client. |
| |
# |
| |
# Returns: |
| |
# 1 - indicating processing should continue. |
| |
# Side effects |
| |
# reply (& separated list of role=start/end info pairs) is |
| |
# written to $client. |
| |
# |
| |
sub dump_domainroles_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my $userinput = "$cmd:$tail"; |
| |
my ($udom,$startfilter,$endfilter,$rolesfilter) = split(/:/,$tail); |
| |
chomp($rolesfilter); |
| |
my @roles = (); |
| |
if (defined($startfilter)) { |
| |
$startfilter=&unescape($startfilter); |
| |
} else { |
| |
$startfilter='.'; |
| |
} |
| |
if (defined($endfilter)) { |
| |
$endfilter=&unescape($endfilter); |
| |
} else { |
| |
$endfilter='.'; |
| |
} |
| |
if (defined($rolesfilter)) { |
| |
$rolesfilter=&unescape($rolesfilter); |
| |
@roles = split(/\&/,$rolesfilter); |
| |
} |
| |
|
| |
my $hashref = &tie_domain_hash($udom, "nohist_domainroles", &GDBM_WRCREAT()); |
| |
if ($hashref) { |
| |
my $qresult = ''; |
| |
while (my ($key,$value) = each(%$hashref)) { |
| |
my $match = 1; |
| |
my ($end,$start) = split(/:/,&unescape($value)); |
| |
my ($trole,$uname,$udom,$runame,$rudom,$rsec) = split(/:/,&unescape($key)); |
| |
unless (@roles < 1) { |
| |
unless (grep/^\Q$trole\E$/,@roles) { |
| |
$match = 0; |
| |
next; |
| |
} |
| |
} |
| |
unless ($startfilter eq '.' || !defined($startfilter)) { |
| |
if ((defined($start)) && ($start >= $startfilter)) { |
| |
$match = 0; |
| |
next; |
| |
} |
| |
} |
| |
unless ($endfilter eq '.' || !defined($endfilter)) { |
| |
if ((defined($end)) && (($end > 0) && ($end <= $endfilter))) { |
| |
$match = 0; |
| |
next; |
| |
} |
| |
} |
| |
if ($match == 1) { |
| |
$qresult.=$key.'='.$value.'&'; |
| |
} |
| |
} |
| |
if (&untie_domain_hash($hashref)) { |
| |
chop($qresult); |
| |
&Reply($client, \$qresult, $userinput); |
| |
} else { |
| |
&Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". |
| |
"while attempting domrolesdump\n", $userinput); |
| |
} |
| |
} else { |
| |
&Failure($client, "error: ".($!+0)." tie(GDBM) Failed ". |
| |
"while attempting domrolesdump\n", $userinput); |
| |
} |
| |
return 1; |
| |
} |
| |
|
| |
®ister_handler("domrolesdump", \&dump_domainroles_handler, 0, 1, 0); |
| |
|
| |
|
| |
# Process the tmpput command I'm not sure what this does.. Seems to |
| |
# create a file in the lonDaemons/tmp directory of the form $id.tmp |
| |
# where Id is the client's ip concatenated with a sequence number. |
| |
# The file will contain some value that is passed in. Is this e.g. |
| |
# a login token? |
| |
# |
| |
# Parameters: |
| |
# $cmd - The command that got us dispatched. |
| |
# $tail - The remainder of the request following $cmd: |
| |
# In this case this will be the contents of the file. |
| |
# $client - Socket connected to the client. |
| |
# Returns: |
| |
# 1 indicating processing can continue. |
| |
# Side effects: |
| |
# A file is created in the local filesystem. |
| |
# A reply is sent to the client. |
| |
sub tmp_put_handler { |
| |
my ($cmd, $what, $client) = @_; |
| |
|
| |
my $userinput = "$cmd:$what"; # Reconstruct for logging. |
| |
|
| |
my ($record,$context) = split(/:/,$what); |
| |
if ($context ne '') { |
| |
chomp($context); |
| |
$context = &unescape($context); |
| |
} |
| |
my ($id,$store); |
| |
$tmpsnum++; |
| |
my $numtries = 0; |
| |
my $execdir=$perlvar{'lonDaemons'}; |
| |
if (($context eq 'resetpw') || ($context eq 'createaccount') || |
| |
($context eq 'sso') || ($context eq 'link') || ($context eq 'retry')) { |
| |
$id = &md5_hex(&md5_hex(time.{}.rand().$$.$tmpsnum)); |
| |
while ((-e "$execdir/tmp/$id.tmp") && ($numtries <10)) { |
| |
undef($id); |
| |
$id = &md5_hex(&md5_hex(time.{}.rand().$$.$tmpsnum)); |
| |
$numtries ++; |
| |
} |
| |
} else { |
| |
$id = $$.'_'.$clientip.'_'.$tmpsnum; |
| |
} |
| |
$id=~s/\W/\_/g; |
| |
$record=~s/\n//g; |
| |
if (($id ne '') && |
| |
($store=IO::File->new(">$execdir/tmp/$id.tmp"))) { |
| |
print $store $record; |
| |
close $store; |
| |
&Reply($client, \$id, $userinput); |
| |
} else { |
| |
&Failure( $client, "error: ".($!+0)."IO::File->new Failed ". |
| |
"while attempting tmpput\n", $userinput); |
| |
} |
| |
return 1; |
| |
|
| |
} |
| |
®ister_handler("tmpput", \&tmp_put_handler, 0, 1, 0); |
| |
|
| |
# Processes the tmpget command. This command returns the contents |
| |
# of a temporary resource file(?) created via tmpput. |
| |
# |
| |
# Paramters: |
| |
# $cmd - Command that got us dispatched. |
| |
# $id - Tail of the command, contain the id of the resource |
| |
# we want to fetch. |
| |
# $client - socket open on the client. |
| |
# Return: |
| |
# 1 - Inidcating processing can continue. |
| |
# Side effects: |
| |
# A reply is sent to the client. |
| |
# |
| |
sub tmp_get_handler { |
| |
my ($cmd, $id, $client) = @_; |
| |
|
| |
my $userinput = "$cmd:$id"; |
| |
|
| |
|
| |
$id=~s/\W/\_/g; |
| |
my $store; |
| |
my $execdir=$perlvar{'lonDaemons'}; |
| |
if ($store=IO::File->new("$execdir/tmp/$id.tmp")) { |
| |
my $reply=<$store>; |
| |
&Reply( $client, \$reply, $userinput); |
| |
close $store; |
| |
} else { |
| |
&Failure( $client, "error: ".($!+0)."IO::File->new Failed ". |
| |
"while attempting tmpget\n", $userinput); |
| |
} |
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("tmpget", \&tmp_get_handler, 0, 1, 0); |
| |
|
| |
# |
| |
# Process the tmpdel command. This command deletes a temp resource |
| |
# created by the tmpput command. |
| |
# |
| |
# Parameters: |
| |
# $cmd - Command that got us here. |
| |
# $id - Id of the temporary resource created. |
| |
# $client - socket open on the client process. |
| |
# |
| |
# Returns: |
| |
# 1 - Indicating processing should continue. |
| |
# Side Effects: |
| |
# A file is deleted |
| |
# A reply is sent to the client. |
| |
sub tmp_del_handler { |
| |
my ($cmd, $id, $client) = @_; |
| |
|
| |
my $userinput= "$cmd:$id"; |
| |
|
| |
chomp($id); |
| |
$id=~s/\W/\_/g; |
| |
my $execdir=$perlvar{'lonDaemons'}; |
| |
if (unlink("$execdir/tmp/$id.tmp")) { |
| |
&Reply($client, "ok\n", $userinput); |
| |
} else { |
| |
&Failure( $client, "error: ".($!+0)."Unlink tmp Failed ". |
| |
"while attempting tmpdel\n", $userinput); |
| |
} |
| |
|
| |
return 1; |
| |
|
| |
} |
| |
®ister_handler("tmpdel", \&tmp_del_handler, 0, 1, 0); |
| |
|
| |
# |
| |
# Process the updatebalcookie command. This command updates a |
| |
# cookie in the lonBalancedir directory on a load balancer node. |
| |
# |
| |
# Parameters: |
| |
# $cmd - Command that got us here. |
| |
# $tail - Tail of the request (escaped cookie: escaped current entry) |
| |
# |
| |
# $client - socket open on the client process. |
| |
# |
| |
# Returns: |
| |
# 1 - Indicating processing should continue. |
| |
# Side Effects: |
| |
# A cookie file is updated from the lonBalancedir directory |
| |
# A reply is sent to the client. |
| |
# |
| |
sub update_balcookie_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my $userinput= "$cmd:$tail"; |
| |
chomp($tail); |
| |
my ($cookie,$lastentry) = map { &unescape($_) } (split(/:/,$tail)); |
| |
|
| |
my $updatedone; |
| |
if ($cookie =~ /^$LONCAPA::match_domain\_$LONCAPA::match_username\_[a-f0-9]{32}$/) { |
| |
my $execdir=$perlvar{'lonBalanceDir'}; |
| |
if (-e "$execdir/$cookie.id") { |
| |
my $doupdate; |
| |
if (open(my $fh,'<',"$execdir/$cookie.id")) { |
| |
while (my $line = <$fh>) { |
| |
chomp($line); |
| |
if ($line eq $lastentry) { |
| |
$doupdate = 1; |
| |
last; |
| |
} |
| |
} |
| |
close($fh); |
| |
} |
| |
if ($doupdate) { |
| |
if (open(my $fh,'>',"$execdir/$cookie.id")) { |
| |
print $fh $clientname; |
| |
close($fh); |
| |
$updatedone = 1; |
| |
} |
| |
} |
| |
} |
| |
} |
| |
if ($updatedone) { |
| |
&Reply($client, "ok\n", $userinput); |
| |
} else { |
| |
&Failure( $client, "error: ".($!+0)."file update failed ". |
| |
"while attempting updatebalcookie\n", $userinput); |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("updatebalcookie", \&update_balcookie_handler, 0, 1, 0); |
| |
|
| |
# |
| |
# Process the delbalcookie command. This command deletes a balancer |
| |
# cookie in the lonBalancedir directory on a load balancer node. |
| |
# |
| |
# Parameters: |
| |
# $cmd - Command that got us here. |
| |
# $cookie - Cookie to be deleted. |
| |
# $client - socket open on the client process. |
| |
# |
| |
# Returns: |
| |
# 1 - Indicating processing should continue. |
| |
# Side Effects: |
| |
# A cookie file is deleted from the lonBalancedir directory |
| |
# A reply is sent to the client. |
| |
sub del_balcookie_handler { |
| |
my ($cmd, $cookie, $client) = @_; |
| |
|
| |
my $userinput= "$cmd:$cookie"; |
| |
|
| |
chomp($cookie); |
| |
$cookie = &unescape($cookie); |
| |
my $deleted = ''; |
| |
if ($cookie =~ /^$LONCAPA::match_domain\_$LONCAPA::match_username\_[a-f0-9]{32}$/) { |
| |
my $execdir=$perlvar{'lonBalanceDir'}; |
| |
if (-e "$execdir/$cookie.id") { |
| |
if (open(my $fh,'<',"$execdir/$cookie.id")) { |
| |
my $dodelete; |
| |
while (my $line = <$fh>) { |
| |
chomp($line); |
| |
if ($line eq $clientname) { |
| |
$dodelete = 1; |
| |
last; |
| |
} |
| |
} |
| |
close($fh); |
| |
if ($dodelete) { |
| |
if (unlink("$execdir/$cookie.id")) { |
| |
$deleted = 1; |
| |
} |
| |
} |
| |
} |
| |
} |
| |
} |
| |
if ($deleted) { |
| |
&Reply($client, "ok\n", $userinput); |
| |
} else { |
| |
&Failure( $client, "error: ".($!+0)."Unlinking cookie file Failed ". |
| |
"while attempting delbalcookie\n", $userinput); |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("delbalcookie", \&del_balcookie_handler, 0, 1, 0); |
| |
|
| |
# |
| |
# Processes the setannounce command. This command |
| |
# creates a file named announce.txt in the top directory of |
| |
# the documentn root and sets its contents. The announce.txt file is |
| |
# printed in its entirety at the LonCAPA login page. Note: |
| |
# once the announcement.txt fileis created it cannot be deleted. |
| |
# However, setting the contents of the file to empty removes the |
| |
# announcement from the login page of loncapa so who cares. |
| |
# |
| |
# Parameters: |
| |
# $cmd - The command that got us dispatched. |
| |
# $announcement - The text of the announcement. |
| |
# $client - Socket open on the client process. |
| |
# Retunrns: |
| |
# 1 - Indicating request processing should continue |
| |
# Side Effects: |
| |
# The file {DocRoot}/announcement.txt is created. |
| |
# A reply is sent to $client. |
| |
# |
| |
sub set_announce_handler { |
| |
my ($cmd, $announcement, $client) = @_; |
| |
|
| |
my $userinput = "$cmd:$announcement"; |
| |
|
| |
chomp($announcement); |
| |
$announcement=&unescape($announcement); |
| |
if (my $store=IO::File->new('>'.$perlvar{'lonDocRoot'}. |
| |
'/announcement.txt')) { |
| |
print $store $announcement; |
| |
close $store; |
| |
&Reply($client, "ok\n", $userinput); |
| |
} else { |
| |
&Failure($client, "error: ".($!+0)."\n", $userinput); |
| |
} |
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("setannounce", \&set_announce_handler, 0, 1, 0); |
| |
|
| |
# |
| |
# Return the version of the daemon. This can be used to determine |
| |
# the compatibility of cross version installations or, alternatively to |
| |
# simply know who's out of date and who isn't. Note that the version |
| |
# is returned concatenated with the tail. |
| |
# Parameters: |
| |
# $cmd - the request that dispatched to us. |
| |
# $tail - Tail of the request (client's version?). |
| |
# $client - Socket open on the client. |
| |
#Returns: |
| |
# 1 - continue processing requests. |
| |
# Side Effects: |
| |
# Replies with version to $client. |
| |
sub get_version_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my $userinput = $cmd.$tail; |
| |
|
| |
&Reply($client, &version($userinput)."\n", $userinput); |
| |
|
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("version", \&get_version_handler, 0, 1, 0); |
| |
|
| |
# Set the current host and domain. This is used to support |
| |
# multihomed systems. Each IP of the system, or even separate daemons |
| |
# on the same IP can be treated as handling a separate lonCAPA virtual |
| |
# machine. This command selects the virtual lonCAPA. The client always |
| |
# knows the right one since it is lonc and it is selecting the domain/system |
| |
# from the hosts.tab file. |
| |
# Parameters: |
| |
# $cmd - Command that dispatched us. |
| |
# $tail - Tail of the command (domain/host requested). |
| |
# $socket - Socket open on the client. |
| |
# |
| |
# Returns: |
| |
# 1 - Indicates the program should continue to process requests. |
| |
# Side-effects: |
| |
# The default domain/system context is modified for this daemon. |
| |
# a reply is sent to the client. |
| |
# |
| |
sub set_virtual_host_handler { |
| |
my ($cmd, $tail, $socket) = @_; |
| |
|
| |
my $userinput ="$cmd:$tail"; |
| |
|
| |
&Reply($client, &sethost($userinput)."\n", $userinput); |
| |
|
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("sethost", \&set_virtual_host_handler, 0, 1, 0); |
| |
|
| |
# Process a request to exit: |
| |
# - "bye" is sent to the client. |
| |
# - The client socket is shutdown and closed. |
| |
# - We indicate to the caller that we should exit. |
| |
# Formal Parameters: |
| |
# $cmd - The command that got us here. |
| |
# $tail - Tail of the command (empty). |
| |
# $client - Socket open on the tail. |
| |
# Returns: |
| |
# 0 - Indicating the program should exit!! |
| |
# |
| |
sub exit_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
&logthis("Client $clientip ($clientname) hanging up: $userinput"); |
| |
&Reply($client, "bye\n", $userinput); |
| |
$client->shutdown(2); # shutdown the socket forcibly. |
| |
$client->close(); |
| |
|
| |
return 0; |
| |
} |
| |
®ister_handler("exit", \&exit_handler, 0,1,1); |
| |
®ister_handler("init", \&exit_handler, 0,1,1); |
| |
®ister_handler("quit", \&exit_handler, 0,1,1); |
| |
|
| |
# Determine if auto-enrollment is enabled. |
| |
# Note that the original had what I believe to be a defect. |
| |
# The original returned 0 if the requestor was not a registerd client. |
| |
# It should return "refused". |
| |
# Formal Parameters: |
| |
# $cmd - The command that invoked us. |
| |
# $tail - The tail of the command (Extra command parameters. |
| |
# $client - The socket open on the client that issued the request. |
| |
# Returns: |
| |
# 1 - Indicating processing should continue. |
| |
# |
| |
sub enrollment_enabled_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
my $userinput = $cmd.":".$tail; # For logging purposes. |
| |
|
| |
|
| |
my ($cdom) = split(/:/, $tail, 2); # Domain we're asking about. |
| |
|
| |
my $outcome = &localenroll::run($cdom); |
| |
&Reply($client, \$outcome, $userinput); |
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("autorun", \&enrollment_enabled_handler, 0, 1, 0); |
| |
|
| |
# |
| |
# Validate an institutional code used for a LON-CAPA course. |
| |
# |
| |
# Formal Parameters: |
| |
# $cmd - The command request that got us dispatched. |
| |
# $tail - The tail of the command. In this case, |
| |
# this is a colon separated set of words that will be split |
| |
# into: |
| |
# $dom - The domain for which the check of |
| |
# institutional course code will occur. |
| |
# |
| |
# $instcode - The institutional code for the course |
| |
# being requested, or validated for rights |
| |
# to request. |
| |
# |
| |
# $owner - The course requestor (who will be the |
| |
# course owner, in the form username:domain |
| |
# |
| |
# $client - Socket open on the client. |
| |
# Returns: |
| |
# 1 - Indicating processing should continue. |
| |
# |
| |
sub validate_instcode_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
my ($dom,$instcode,$owner) = split(/:/, $tail); |
| |
$instcode = &unescape($instcode); |
| |
$owner = &unescape($owner); |
| |
my ($outcome,$description,$credits) = |
| |
&localenroll::validate_instcode($dom,$instcode,$owner); |
| |
my $result = &escape($outcome).'&'.&escape($description).'&'. |
| |
&escape($credits); |
| |
&Reply($client, \$result, $userinput); |
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("autovalidateinstcode", \&validate_instcode_handler, 0, 1, 0); |
| |
|
| |
# |
| |
# Validate co-owner for cross-listed institutional code and |
| |
# institutional course code itself used for a LON-CAPA course. |
| |
# |
| |
# Formal Parameters: |
| |
# $cmd - The command request that got us dispatched. |
| |
# $tail - The tail of the command. In this case, |
| |
# this is a colon separated string containing: |
| |
# $dom - Course's LON-CAPA domain |
| |
# $instcode - Institutional course code for the course |
| |
# $inst_xlist - Institutional course Id for the crosslisting |
| |
# $coowner - Username of co-owner |
| |
# (values for all but $dom have been escaped). |
| |
# |
| |
# $client - Socket open on the client. |
| |
# Returns: |
| |
# 1 - Indicating processing should continue. |
| |
# |
| |
sub validate_instcrosslist_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
my ($dom,$instcode,$inst_xlist,$coowner) = split(/:/,$tail); |
| |
$instcode = &unescape($instcode); |
| |
$inst_xlist = &unescape($inst_xlist); |
| |
$coowner = &unescape($coowner); |
| |
my $outcome = &localenroll::validate_crosslist_access($dom,$instcode, |
| |
$inst_xlist,$coowner); |
| |
&Reply($client, \$outcome, $userinput); |
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("autovalidateinstcrosslist", \&validate_instcrosslist_handler, 0, 1, 0); |
| |
|
| |
# Get the official sections for which auto-enrollment is possible. |
| |
# Since the admin people won't know about 'unofficial sections' |
| |
# we cannot auto-enroll on them. |
| |
# Formal Parameters: |
| |
# $cmd - The command request that got us dispatched here. |
| |
# $tail - The remainder of the request. In our case this |
| |
# will be split into: |
| |
# $coursecode - The course name from the admin point of view. |
| |
# $cdom - The course's domain(?). |
| |
# $client - Socket open on the client. |
| |
# Returns: |
| |
# 1 - Indiciting processing should continue. |
| |
# |
| |
sub get_sections_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
my ($coursecode, $cdom) = split(/:/, $tail); |
| |
my @secs = &localenroll::get_sections($coursecode,$cdom); |
| |
my $seclist = &escape(join(':',@secs)); |
| |
|
| |
&Reply($client, \$seclist, $userinput); |
| |
|
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("autogetsections", \&get_sections_handler, 0, 1, 0); |
| |
|
| |
# Validate the owner of a new course section. |
| |
# |
| |
# Formal Parameters: |
| |
# $cmd - Command that got us dispatched. |
| |
# $tail - the remainder of the command. For us this consists of a |
| |
# colon separated string containing: |
| |
# $inst - Course Id from the institutions point of view. |
| |
# $owner - Proposed owner of the course. |
| |
# $cdom - Domain of the course (from the institutions |
| |
# point of view?).. |
| |
# $client - Socket open on the client. |
| |
# |
| |
# Returns: |
| |
# 1 - Processing should continue. |
| |
# |
| |
sub validate_course_owner_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
my ($inst_course_id, $owner, $cdom, $coowners) = split(/:/, $tail); |
| |
|
| |
$owner = &unescape($owner); |
| |
$coowners = &unescape($coowners); |
| |
my $outcome = &localenroll::new_course($inst_course_id,$owner,$cdom,$coowners); |
| |
&Reply($client, \$outcome, $userinput); |
| |
|
| |
|
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("autonewcourse", \&validate_course_owner_handler, 0, 1, 0); |
| |
|
| |
# |
| |
# Validate a course section in the official schedule of classes |
| |
# from the institutions point of view (part of autoenrollment). |
| |
# |
| |
# Formal Parameters: |
| |
# $cmd - The command request that got us dispatched. |
| |
# $tail - The tail of the command. In this case, |
| |
# this is a colon separated set of words that will be split |
| |
# into: |
| |
# $inst_course_id - The course/section id from the |
| |
# institutions point of view. |
| |
# $cdom - The domain from the institutions |
| |
# point of view. |
| |
# $client - Socket open on the client. |
| |
# Returns: |
| |
# 1 - Indicating processing should continue. |
| |
# |
| |
sub validate_course_section_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
my ($inst_course_id, $cdom) = split(/:/, $tail); |
| |
|
| |
my $outcome=&localenroll::validate_courseID($inst_course_id,$cdom); |
| |
&Reply($client, \$outcome, $userinput); |
| |
|
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("autovalidatecourse", \&validate_course_section_handler, 0, 1, 0); |
| |
|
| |
# |
| |
# Validate course owner's access to enrollment data for specific class section. |
| |
# |
| |
# |
| |
# Formal Parameters: |
| |
# $cmd - The command request that got us dispatched. |
| |
# $tail - The tail of the command. In this case this is a colon separated |
| |
# set of values that will be split into: |
| |
# $inst_class - Institutional code for the specific class section |
| |
# $ownerlist - An escaped comma-separated list of username:domain |
| |
# of the course owner, and co-owner(s). |
| |
# $cdom - The domain of the course from the institution's |
| |
# point of view. |
| |
# $client - The socket open on the client. |
| |
# Returns: |
| |
# 1 - continue processing. |
| |
# |
| |
|
| |
sub validate_class_access_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
my ($inst_class,$ownerlist,$cdom) = split(/:/, $tail); |
| |
my $owners = &unescape($ownerlist); |
| |
my $outcome; |
| |
eval { |
| |
local($SIG{__DIE__})='DEFAULT'; |
| |
$outcome=&localenroll::check_section($inst_class,$owners,$cdom); |
| |
}; |
| |
&Reply($client,\$outcome, $userinput); |
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("autovalidateclass_sec", \&validate_class_access_handler, 0, 1, 0); |
| |
|
| |
# |
| |
# Modify institutional sections (using customized &instsec_reformat() |
| |
# routine in localenroll.pm), to either clutter or declutter, for |
| |
# purposes of ensuring an institutional course section (string) can |
| |
# be unambiguously separated into institutional course and section. |
| |
# |
| |
# Formal Parameters: |
| |
# $cmd - The command request that got us dispatched. |
| |
# $tail - The tail of the command. In this case this is a colon separated |
| |
# set of values that will be split into: |
| |
# $cdom - The LON-CAPA domain of the course. |
| |
# $action - Either: clutter or declutter |
| |
# clutter adds character(s) to eliminate ambiguity |
| |
# declutter removes the added characters (e.g., for |
| |
# display of the institutional course section string. |
| |
# $info - A frozen hash in which keys are: |
| |
# LON-CAPA course number:Institutional course code |
| |
# and values are a reference to an array of the |
| |
# items to modify -- either institutional sections, |
| |
# or institutional course sections (for crosslistings). |
| |
# $client - The socket open on the client. |
| |
# Returns: |
| |
# 1 - continue processing. |
| |
# |
| |
|
| |
sub instsec_reformat_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
my ($cdom,$action,$info) = split(/:/,$tail); |
| |
my $instsecref = &Apache::lonnet::thaw_unescape($info); |
| |
my ($outcome,$result); |
| |
eval { |
| |
local($SIG{__DIE__})='DEFAULT'; |
| |
$outcome=&localenroll::instsec_reformat($cdom,$action,$instsecref); |
| |
if ($outcome eq 'ok') { |
| |
if (ref($instsecref) eq 'HASH') { |
| |
foreach my $key (keys(%{$instsecref})) { |
| |
$result .= &escape($key).'='.&Apache::lonnet::freeze_escape($instsecref->{$key}).'&'; |
| |
} |
| |
$result =~ s/\&$//; |
| |
} |
| |
} |
| |
}; |
| |
if (!$@) { |
| |
if ($outcome eq 'ok') { |
| |
&Reply( $client, \$result, $userinput); |
| |
} else { |
| |
&Reply($client,\$outcome, $userinput); |
| |
} |
| |
} else { |
| |
&Failure($client,"unknown_cmd\n",$userinput); |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("autoinstsecreformat",\&instsec_reformat_handler, 0, 1, 0); |
| |
|
| |
# |
| |
# Validate course owner or co-owners(s) access to enrollment data for all sections |
| |
# and crosslistings for a particular course. |
| |
# |
| |
# |
| |
# Formal Parameters: |
| |
# $cmd - The command request that got us dispatched. |
| |
# $tail - The tail of the command. In this case this is a colon separated |
| |
# set of values that will be split into: |
| |
# $ownerlist - An escaped comma-separated list of username:domain |
| |
# of the course owner, and co-owner(s). |
| |
# $cdom - The domain of the course from the institution's |
| |
# point of view. |
| |
# $classes - Frozen hash of institutional course sections and |
| |
# crosslistings. |
| |
# $client - The socket open on the client. |
| |
# Returns: |
| |
# 1 - continue processing. |
| |
# |
| |
|
| |
sub validate_classes_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
my ($ownerlist,$cdom,$classes) = split(/:/, $tail); |
| |
my $classesref = &Apache::lonnet::thaw_unescape($classes); |
| |
my $owners = &unescape($ownerlist); |
| |
my $result; |
| |
eval { |
| |
local($SIG{__DIE__})='DEFAULT'; |
| |
my %validations; |
| |
my $response = &localenroll::check_instclasses($owners,$cdom,$classesref, |
| |
\%validations); |
| |
if ($response eq 'ok') { |
| |
foreach my $key (keys(%validations)) { |
| |
$result .= &escape($key).'='.&Apache::lonnet::freeze_escape($validations{$key}).'&'; |
| |
} |
| |
$result =~ s/\&$//; |
| |
} else { |
| |
$result = 'error'; |
| |
} |
| |
}; |
| |
if (!$@) { |
| |
&Reply($client, \$result, $userinput); |
| |
} else { |
| |
&Failure($client,"unknown_cmd\n",$userinput); |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("autovalidateinstclasses", \&validate_classes_handler, 0, 1, 0); |
| |
|
| |
# |
| |
# Create a password for a new LON-CAPA user added by auto-enrollment. |
| |
# Only used for case where authentication method for new user is localauth |
| |
# |
| |
# Formal Parameters: |
| |
# $cmd - The command request that got us dispatched. |
| |
# $tail - The tail of the command. In this case this is a colon separated |
| |
# set of words that will be split into: |
| |
# $authparam - An authentication parameter (localauth parameter). |
| |
# $cdom - The domain of the course from the institution's |
| |
# point of view. |
| |
# $client - The socket open on the client. |
| |
# Returns: |
| |
# 1 - continue processing. |
| |
# |
| |
sub create_auto_enroll_password_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
my ($authparam, $cdom) = split(/:/, $userinput); |
| |
|
| |
my ($create_passwd,$authchk); |
| |
($authparam, |
| |
$create_passwd, |
| |
$authchk) = &localenroll::create_password($authparam,$cdom); |
| |
|
| |
&Reply($client, &escape($authparam.':'.$create_passwd.':'.$authchk)."\n", |
| |
$userinput); |
| |
|
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("autocreatepassword", \&create_auto_enroll_password_handler, |
| |
0, 1, 0); |
| |
|
| |
sub auto_export_grades_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
my ($cdom,$cnum,$info,$data) = split(/:/,$tail); |
| |
my $inforef = &Apache::lonnet::thaw_unescape($info); |
| |
my $dataref = &Apache::lonnet::thaw_unescape($data); |
| |
my ($outcome,$result);; |
| |
eval { |
| |
local($SIG{__DIE__})='DEFAULT'; |
| |
my %rtnhash; |
| |
$outcome=&localenroll::export_grades($cdom,$cnum,$inforef,$dataref,\%rtnhash); |
| |
if ($outcome eq 'ok') { |
| |
foreach my $key (keys(%rtnhash)) { |
| |
$result .= &escape($key).'='.&Apache::lonnet::freeze_escape($rtnhash{$key}).'&'; |
| |
} |
| |
$result =~ s/\&$//; |
| |
} |
| |
}; |
| |
if (!$@) { |
| |
if ($outcome eq 'ok') { |
| |
if ($cipher) { |
| |
my $cmdlength=length($result); |
| |
$result.=" "; |
| |
my $encresult=''; |
| |
for (my $encidx=0;$encidx<=$cmdlength;$encidx+=8) { |
| |
$encresult.= unpack("H16", |
| |
$cipher->encrypt(substr($result, |
| |
$encidx, |
| |
8))); |
| |
} |
| |
&Reply( $client, "enc:$cmdlength:$encresult\n", $userinput); |
| |
} else { |
| |
&Failure( $client, "error:no_key\n", $userinput); |
| |
} |
| |
} else { |
| |
&Reply($client, "$outcome\n", $userinput); |
| |
} |
| |
} else { |
| |
&Failure($client,"export_error\n",$userinput); |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("autoexportgrades", \&auto_export_grades_handler, |
| |
1, 1, 0); |
| |
|
| |
|
| |
# Retrieve and remove temporary files created by/during autoenrollment. |
| |
# |
| |
# Formal Parameters: |
| |
# $cmd - The command that got us dispatched. |
| |
# $tail - The tail of the command. In our case this is a colon |
| |
# separated list that will be split into: |
| |
# $filename - The name of the file to retrieve. |
| |
# The filename is given as a path relative to |
| |
# the LonCAPA temp file directory. |
| |
# $client - Socket open on the client. |
| |
# |
| |
# Returns: |
| |
# 1 - Continue processing. |
| |
sub retrieve_auto_file_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
my $userinput = "cmd:$tail"; |
| |
|
| |
my ($filename) = split(/:/, $tail); |
| |
|
| |
my $source = $perlvar{'lonDaemons'}.'/tmp/'.$filename; |
| |
if ($filename =~m{/\.\./}) { |
| |
&Failure($client, "refused\n", $userinput); |
| |
} elsif ($filename !~ /^$LONCAPA::match_domain\_$LONCAPA::match_courseid\_.+_classlist\.xml$/) { |
| |
&Failure($client, "refused\n", $userinput); |
| |
} elsif ( (-e $source) && ($filename ne '') ) { |
| |
my $reply = ''; |
| |
if (open(my $fh,$source)) { |
| |
while (<$fh>) { |
| |
chomp($_); |
| |
$_ =~ s/^\s+//g; |
| |
$_ =~ s/\s+$//g; |
| |
$reply .= $_; |
| |
} |
| |
close($fh); |
| |
&Reply($client, &escape($reply)."\n", $userinput); |
| |
|
| |
# Does this have to be uncommented??!? (RF). |
| |
# |
| |
# unlink($source); |
| |
} else { |
| |
&Failure($client, "error\n", $userinput); |
| |
} |
| |
} else { |
| |
&Failure($client, "error\n", $userinput); |
| |
} |
| |
|
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("autoretrieve", \&retrieve_auto_file_handler, 0,1,0); |
| |
|
| |
sub crsreq_checks_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
my $dom = $tail; |
| |
my $result; |
| |
my @reqtypes = ('official','unofficial','community','textbook'); |
| |
eval { |
| |
local($SIG{__DIE__})='DEFAULT'; |
| |
my %validations; |
| |
my $response = &localenroll::crsreq_checks($dom,\@reqtypes, |
| |
\%validations); |
| |
if ($response eq 'ok') { |
| |
foreach my $key (keys(%validations)) { |
| |
$result .= &escape($key).'='.&Apache::lonnet::freeze_escape($validations{$key}).'&'; |
| |
} |
| |
$result =~ s/\&$//; |
| |
} else { |
| |
$result = 'error'; |
| |
} |
| |
}; |
| |
if (!$@) { |
| |
&Reply($client, \$result, $userinput); |
| |
} else { |
| |
&Failure($client,"unknown_cmd\n",$userinput); |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("autocrsreqchecks", \&crsreq_checks_handler, 0, 1, 0); |
| |
|
| |
sub validate_crsreq_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
my ($dom,$owner,$crstype,$inststatuslist,$instcode,$instseclist,$customdata) = split(/:/, $tail); |
| |
$instcode = &unescape($instcode); |
| |
$owner = &unescape($owner); |
| |
$crstype = &unescape($crstype); |
| |
$inststatuslist = &unescape($inststatuslist); |
| |
$instcode = &unescape($instcode); |
| |
$instseclist = &unescape($instseclist); |
| |
my $custominfo = &Apache::lonnet::thaw_unescape($customdata); |
| |
my $outcome; |
| |
eval { |
| |
local($SIG{__DIE__})='DEFAULT'; |
| |
$outcome = &localenroll::validate_crsreq($dom,$owner,$crstype, |
| |
$inststatuslist,$instcode, |
| |
$instseclist,$custominfo); |
| |
}; |
| |
if (!$@) { |
| |
&Reply($client, \$outcome, $userinput); |
| |
} else { |
| |
&Failure($client,"unknown_cmd\n",$userinput); |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("autocrsreqvalidation", \&validate_crsreq_handler, 0, 1, 0); |
| |
|
| |
sub crsreq_update_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
my ($cdom,$cnum,$crstype,$action,$ownername,$ownerdomain,$fullname,$title,$code, |
| |
$accessstart,$accessend,$infohashref) = |
| |
split(/:/, $tail); |
| |
$crstype = &unescape($crstype); |
| |
$action = &unescape($action); |
| |
$ownername = &unescape($ownername); |
| |
$ownerdomain = &unescape($ownerdomain); |
| |
$fullname = &unescape($fullname); |
| |
$title = &unescape($title); |
| |
$code = &unescape($code); |
| |
$accessstart = &unescape($accessstart); |
| |
$accessend = &unescape($accessend); |
| |
my $incoming = &Apache::lonnet::thaw_unescape($infohashref); |
| |
my ($result,$outcome); |
| |
eval { |
| |
local($SIG{__DIE__})='DEFAULT'; |
| |
my %rtnhash; |
| |
$outcome = &localenroll::crsreq_updates($cdom,$cnum,$crstype,$action, |
| |
$ownername,$ownerdomain,$fullname, |
| |
$title,$code,$accessstart,$accessend, |
| |
$incoming,\%rtnhash); |
| |
if ($outcome eq 'ok') { |
| |
my @posskeys = qw(createdweb createdmsg createdcustomized createdactions queuedweb queuedmsg formitems reviewweb validationjs onload javascript); |
| |
foreach my $key (keys(%rtnhash)) { |
| |
if (grep(/^\Q$key\E/,@posskeys)) { |
| |
$result .= &escape($key).'='.&Apache::lonnet::freeze_escape($rtnhash{$key}).'&'; |
| |
} |
| |
} |
| |
$result =~ s/\&$//; |
| |
} |
| |
}; |
| |
if (!$@) { |
| |
if ($outcome eq 'ok') { |
| |
&Reply($client, \$result, $userinput); |
| |
} else { |
| |
&Reply($client, "format_error\n", $userinput); |
| |
} |
| |
} else { |
| |
&Failure($client,"unknown_cmd\n",$userinput); |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("autocrsrequpdate", \&crsreq_update_handler, 0, 1, 0); |
| |
|
| |
# |
| |
# Read and retrieve institutional code format (for support form). |
| |
# Formal Parameters: |
| |
# $cmd - Command that dispatched us. |
| |
# $tail - Tail of the command. In this case it conatins |
| |
# the course domain and the coursename. |
| |
# $client - Socket open on the client. |
| |
# Returns: |
| |
# 1 - Continue processing. |
| |
# |
| |
sub get_institutional_code_format_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
my $reply; |
| |
my($cdom,$course) = split(/:/,$tail); |
| |
my @pairs = split/\&/,$course; |
| |
my %instcodes = (); |
| |
my %codes = (); |
| |
my @codetitles = (); |
| |
my %cat_titles = (); |
| |
my %cat_order = (); |
| |
foreach (@pairs) { |
| |
my ($key,$value) = split/=/,$_; |
| |
$instcodes{&unescape($key)} = &unescape($value); |
| |
} |
| |
my $formatreply = &localenroll::instcode_format($cdom, |
| |
\%instcodes, |
| |
\%codes, |
| |
\@codetitles, |
| |
\%cat_titles, |
| |
\%cat_order); |
| |
if ($formatreply eq 'ok') { |
| |
my $codes_str = &Apache::lonnet::hash2str(%codes); |
| |
my $codetitles_str = &Apache::lonnet::array2str(@codetitles); |
| |
my $cat_titles_str = &Apache::lonnet::hash2str(%cat_titles); |
| |
my $cat_order_str = &Apache::lonnet::hash2str(%cat_order); |
| |
&Reply($client, |
| |
$codes_str.':'.$codetitles_str.':'.$cat_titles_str.':' |
| |
.$cat_order_str."\n", |
| |
$userinput); |
| |
} else { |
| |
# this else branch added by RF since if not ok, lonc will |
| |
# hang waiting on reply until timeout. |
| |
# |
| |
&Reply($client, "format_error\n", $userinput); |
| |
} |
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("autoinstcodeformat", |
| |
\&get_institutional_code_format_handler,0,1,0); |
| |
|
| |
sub get_institutional_defaults_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
my $dom = $tail; |
| |
my %defaults_hash; |
| |
my @code_order; |
| |
my $outcome; |
| |
eval { |
| |
local($SIG{__DIE__})='DEFAULT'; |
| |
$outcome = &localenroll::instcode_defaults($dom,\%defaults_hash, |
| |
\@code_order); |
| |
}; |
| |
if (!$@) { |
| |
if ($outcome eq 'ok') { |
| |
my $result=''; |
| |
while (my ($key,$value) = each(%defaults_hash)) { |
| |
$result.=&escape($key).'='.&escape($value).'&'; |
| |
} |
| |
$result .= 'code_order='.&escape(join('&',@code_order)); |
| |
&Reply($client,\$result,$userinput); |
| |
} else { |
| |
&Reply($client,"error\n", $userinput); |
| |
} |
| |
} else { |
| |
&Failure($client,"unknown_cmd\n",$userinput); |
| |
} |
| |
} |
| |
®ister_handler("autoinstcodedefaults", |
| |
\&get_institutional_defaults_handler,0,1,0); |
| |
|
| |
sub get_possible_instcodes_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
my $reply; |
| |
my $cdom = $tail; |
| |
my (@codetitles,%cat_titles,%cat_order,@code_order); |
| |
my $formatreply = &localenroll::possible_instcodes($cdom, |
| |
\@codetitles, |
| |
\%cat_titles, |
| |
\%cat_order, |
| |
\@code_order); |
| |
if ($formatreply eq 'ok') { |
| |
my $result = join('&',map {&escape($_);} (@codetitles)).':'; |
| |
$result .= join('&',map {&escape($_);} (@code_order)).':'; |
| |
foreach my $key (keys(%cat_titles)) { |
| |
$result .= &escape($key).'='.&Apache::lonnet::freeze_escape($cat_titles{$key}).'&'; |
| |
} |
| |
$result =~ s/\&$//; |
| |
$result .= ':'; |
| |
foreach my $key (keys(%cat_order)) { |
| |
$result .= &escape($key).'='.&Apache::lonnet::freeze_escape($cat_order{$key}).'&'; |
| |
} |
| |
$result =~ s/\&$//; |
| |
&Reply($client,\$result,$userinput); |
| |
} else { |
| |
&Reply($client, "format_error\n", $userinput); |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("autopossibleinstcodes", |
| |
\&get_possible_instcodes_handler,0,1,0); |
| |
|
| |
sub get_institutional_user_rules { |
| |
my ($cmd, $tail, $client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
my $dom = &unescape($tail); |
| |
my (%rules_hash,@rules_order); |
| |
my $outcome; |
| |
eval { |
| |
local($SIG{__DIE__})='DEFAULT'; |
| |
$outcome = &localenroll::username_rules($dom,\%rules_hash,\@rules_order); |
| |
}; |
| |
if (!$@) { |
| |
if ($outcome eq 'ok') { |
| |
my $result; |
| |
foreach my $key (keys(%rules_hash)) { |
| |
$result .= &escape($key).'='.&Apache::lonnet::freeze_escape($rules_hash{$key}).'&'; |
| |
} |
| |
$result =~ s/\&$//; |
| |
$result .= ':'; |
| |
if (@rules_order > 0) { |
| |
foreach my $item (@rules_order) { |
| |
$result .= &escape($item).'&'; |
| |
} |
| |
} |
| |
$result =~ s/\&$//; |
| |
&Reply($client,\$result,$userinput); |
| |
} else { |
| |
&Reply($client,"error\n", $userinput); |
| |
} |
| |
} else { |
| |
&Failure($client,"unknown_cmd\n",$userinput); |
| |
} |
| |
} |
| |
®ister_handler("instuserrules",\&get_institutional_user_rules,0,1,0); |
| |
|
| |
sub get_institutional_id_rules { |
| |
my ($cmd, $tail, $client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
my $dom = &unescape($tail); |
| |
my (%rules_hash,@rules_order); |
| |
my $outcome; |
| |
eval { |
| |
local($SIG{__DIE__})='DEFAULT'; |
| |
$outcome = &localenroll::id_rules($dom,\%rules_hash,\@rules_order); |
| |
}; |
| |
if (!$@) { |
| |
if ($outcome eq 'ok') { |
| |
my $result; |
| |
foreach my $key (keys(%rules_hash)) { |
| |
$result .= &escape($key).'='.&Apache::lonnet::freeze_escape($rules_hash{$key}).'&'; |
| |
} |
| |
$result =~ s/\&$//; |
| |
$result .= ':'; |
| |
if (@rules_order > 0) { |
| |
foreach my $item (@rules_order) { |
| |
$result .= &escape($item).'&'; |
| |
} |
| |
} |
| |
$result =~ s/\&$//; |
| |
&Reply($client,\$result,$userinput); |
| |
} else { |
| |
&Reply($client,"error\n", $userinput); |
| |
} |
| |
} else { |
| |
&Failure($client,"unknown_cmd\n",$userinput); |
| |
} |
| |
} |
| |
®ister_handler("instidrules",\&get_institutional_id_rules,0,1,0); |
| |
|
| |
sub get_institutional_selfcreate_rules { |
| |
my ($cmd, $tail, $client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
my $dom = &unescape($tail); |
| |
my (%rules_hash,@rules_order); |
| |
my $outcome; |
| |
eval { |
| |
local($SIG{__DIE__})='DEFAULT'; |
| |
$outcome = &localenroll::selfcreate_rules($dom,\%rules_hash,\@rules_order); |
| |
}; |
| |
if (!$@) { |
| |
if ($outcome eq 'ok') { |
| |
my $result; |
| |
foreach my $key (keys(%rules_hash)) { |
| |
$result .= &escape($key).'='.&Apache::lonnet::freeze_escape($rules_hash{$key}).'&'; |
| |
} |
| |
$result =~ s/\&$//; |
| |
$result .= ':'; |
| |
if (@rules_order > 0) { |
| |
foreach my $item (@rules_order) { |
| |
$result .= &escape($item).'&'; |
| |
} |
| |
} |
| |
$result =~ s/\&$//; |
| |
&Reply($client,\$result,$userinput); |
| |
} else { |
| |
&Reply($client,"error\n", $userinput); |
| |
} |
| |
} else { |
| |
&Failure($client,"unknown_cmd\n",$userinput); |
| |
} |
| |
} |
| |
®ister_handler("instemailrules",\&get_institutional_selfcreate_rules,0,1,0); |
| |
|
| |
|
| |
sub institutional_username_check { |
| |
my ($cmd, $tail, $client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
my %rulecheck; |
| |
my $outcome; |
| |
my ($udom,$uname,@rules) = split(/:/,$tail); |
| |
$udom = &unescape($udom); |
| |
$uname = &unescape($uname); |
| |
@rules = map {&unescape($_);} (@rules); |
| |
eval { |
| |
local($SIG{__DIE__})='DEFAULT'; |
| |
$outcome = &localenroll::username_check($udom,$uname,\@rules,\%rulecheck); |
| |
}; |
| |
if (!$@) { |
| |
if ($outcome eq 'ok') { |
| |
my $result=''; |
| |
foreach my $key (keys(%rulecheck)) { |
| |
$result.=&escape($key).'='.&Apache::lonnet::freeze_escape($rulecheck{$key}).'&'; |
| |
} |
| |
&Reply($client,\$result,$userinput); |
| |
} else { |
| |
&Reply($client,"error\n", $userinput); |
| |
} |
| |
} else { |
| |
&Failure($client,"unknown_cmd\n",$userinput); |
| |
} |
| |
} |
| |
®ister_handler("instrulecheck",\&institutional_username_check,0,1,0); |
| |
|
| |
sub institutional_id_check { |
| |
my ($cmd, $tail, $client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
my %rulecheck; |
| |
my $outcome; |
| |
my ($udom,$id,@rules) = split(/:/,$tail); |
| |
$udom = &unescape($udom); |
| |
$id = &unescape($id); |
| |
@rules = map {&unescape($_);} (@rules); |
| |
eval { |
| |
local($SIG{__DIE__})='DEFAULT'; |
| |
$outcome = &localenroll::id_check($udom,$id,\@rules,\%rulecheck); |
| |
}; |
| |
if (!$@) { |
| |
if ($outcome eq 'ok') { |
| |
my $result=''; |
| |
foreach my $key (keys(%rulecheck)) { |
| |
$result.=&escape($key).'='.&Apache::lonnet::freeze_escape($rulecheck{$key}).'&'; |
| |
} |
| |
&Reply($client,\$result,$userinput); |
| |
} else { |
| |
&Reply($client,"error\n", $userinput); |
| |
} |
| |
} else { |
| |
&Failure($client,"unknown_cmd\n",$userinput); |
| |
} |
| |
} |
| |
®ister_handler("instidrulecheck",\&institutional_id_check,0,1,0); |
| |
|
| |
sub institutional_selfcreate_check { |
| |
my ($cmd, $tail, $client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
my %rulecheck; |
| |
my $outcome; |
| |
my ($udom,$email,@rules) = split(/:/,$tail); |
| |
$udom = &unescape($udom); |
| |
$email = &unescape($email); |
| |
@rules = map {&unescape($_);} (@rules); |
| |
eval { |
| |
local($SIG{__DIE__})='DEFAULT'; |
| |
$outcome = &localenroll::selfcreate_check($udom,$email,\@rules,\%rulecheck); |
| |
}; |
| |
if (!$@) { |
| |
if ($outcome eq 'ok') { |
| |
my $result=''; |
| |
foreach my $key (keys(%rulecheck)) { |
| |
$result.=&escape($key).'='.&Apache::lonnet::freeze_escape($rulecheck{$key}).'&'; |
| |
} |
| |
&Reply($client,\$result,$userinput); |
| |
} else { |
| |
&Reply($client,"error\n", $userinput); |
| |
} |
| |
} else { |
| |
&Failure($client,"unknown_cmd\n",$userinput); |
| |
} |
| |
} |
| |
®ister_handler("instselfcreatecheck",\&institutional_selfcreate_check,0,1,0); |
| |
|
| |
# Get domain specific conditions for import of student photographs to a course |
| |
# |
| |
# Retrieves information from photo_permission subroutine in localenroll. |
| |
# Returns outcome (ok) if no processing errors, and whether course owner is |
| |
# required to accept conditions of use (yes/no). |
| |
# |
| |
# |
| |
sub photo_permission_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
my $cdom = $tail; |
| |
my ($perm_reqd,$conditions); |
| |
my $outcome; |
| |
eval { |
| |
local($SIG{__DIE__})='DEFAULT'; |
| |
$outcome = &localenroll::photo_permission($cdom,\$perm_reqd, |
| |
\$conditions); |
| |
}; |
| |
if (!$@) { |
| |
&Reply($client, &escape($outcome.':'.$perm_reqd.':'. $conditions)."\n", |
| |
$userinput); |
| |
} else { |
| |
&Failure($client,"unknown_cmd\n",$userinput); |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("autophotopermission",\&photo_permission_handler,0,1,0); |
| |
|
| |
# |
| |
# Checks if student photo is available for a user in the domain, in the user's |
| |
# directory (in /userfiles/internal/studentphoto.jpg). |
| |
# Uses localstudentphoto:fetch() to ensure there is an up to date copy of |
| |
# the student's photo. |
| |
|
| |
sub photo_check_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
my ($udom,$uname,$pid) = split(/:/,$tail); |
| |
$udom = &unescape($udom); |
| |
$uname = &unescape($uname); |
| |
$pid = &unescape($pid); |
| |
my $path=&propath($udom,$uname).'/userfiles/internal/'; |
| |
if (!-e $path) { |
| |
&mkpath($path); |
| |
} |
| |
my $response; |
| |
my $result = &localstudentphoto::fetch($udom,$uname,$pid,\$response); |
| |
$result .= ':'.$response; |
| |
&Reply($client, &escape($result)."\n",$userinput); |
| |
return 1; |
| |
} |
| |
®ister_handler("autophotocheck",\&photo_check_handler,0,1,0); |
| |
|
| |
# |
| |
# Retrieve information from localenroll about whether to provide a button |
| |
# for users who have enbled import of student photos to initiate an |
| |
# update of photo files for registered students. Also include |
| |
# comment to display alongside button. |
| |
|
| |
sub photo_choice_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
my $userinput = "$cmd:$tail"; |
| |
my $cdom = &unescape($tail); |
| |
my ($update,$comment); |
| |
eval { |
| |
local($SIG{__DIE__})='DEFAULT'; |
| |
($update,$comment) = &localenroll::manager_photo_update($cdom); |
| |
}; |
| |
if (!$@) { |
| |
&Reply($client,&escape($update).':'.&escape($comment)."\n",$userinput); |
| |
} else { |
| |
&Failure($client,"unknown_cmd\n",$userinput); |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("autophotochoice",\&photo_choice_handler,0,1,0); |
| |
|
| |
# |
| |
# Gets a student's photo to exist (in the correct image type) in the user's |
| |
# directory. |
| |
# Formal Parameters: |
| |
# $cmd - The command request that got us dispatched. |
| |
# $tail - A colon separated set of words that will be split into: |
| |
# $domain - student's domain |
| |
# $uname - student username |
| |
# $type - image type desired |
| |
# $client - The socket open on the client. |
| |
# Returns: |
| |
# 1 - continue processing. |
| |
|
| |
sub student_photo_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
my ($domain,$uname,$ext,$type) = split(/:/, $tail); |
| |
|
| |
my $path=&propath($domain,$uname). '/userfiles/internal/'; |
| |
my $filename = 'studentphoto.'.$ext; |
| |
if ($type eq 'thumbnail') { |
| |
$filename = 'studentphoto_tn.'.$ext; |
| |
} |
| |
if (-e $path.$filename) { |
| |
&Reply($client,"ok\n","$cmd:$tail"); |
| |
return 1; |
| |
} |
| |
&mkpath($path); |
| |
my $file; |
| |
if ($type eq 'thumbnail') { |
| |
eval { |
| |
local($SIG{__DIE__})='DEFAULT'; |
| |
$file=&localstudentphoto::fetch_thumbnail($domain,$uname); |
| |
}; |
| |
} else { |
| |
$file=&localstudentphoto::fetch($domain,$uname); |
| |
} |
| |
if (!$file) { |
| |
&Failure($client,"unavailable\n","$cmd:$tail"); |
| |
return 1; |
| |
} |
| |
if (!-e $path.$filename) { &convert_photo($file,$path.$filename); } |
| |
if (-e $path.$filename) { |
| |
&Reply($client,"ok\n","$cmd:$tail"); |
| |
return 1; |
| |
} |
| |
&Failure($client,"unable_to_convert\n","$cmd:$tail"); |
| |
return 1; |
| |
} |
| |
®ister_handler("studentphoto", \&student_photo_handler, 0, 1, 0); |
| |
|
| |
sub inst_usertypes_handler { |
| |
my ($cmd, $domain, $client) = @_; |
| |
my $res; |
| |
my $userinput = $cmd.":".$domain; # For logging purposes. |
| |
my (%typeshash,@order,$result); |
| |
eval { |
| |
local($SIG{__DIE__})='DEFAULT'; |
| |
$result=&localenroll::inst_usertypes($domain,\%typeshash,\@order); |
| |
}; |
| |
if ($result eq 'ok') { |
| |
if (keys(%typeshash) > 0) { |
| |
foreach my $key (keys(%typeshash)) { |
| |
$res.=&escape($key).'='.&escape($typeshash{$key}).'&'; |
| |
} |
| |
} |
| |
$res=~s/\&$//; |
| |
$res .= ':'; |
| |
if (@order > 0) { |
| |
foreach my $item (@order) { |
| |
$res .= &escape($item).'&'; |
| |
} |
| |
} |
| |
$res=~s/\&$//; |
| |
} |
| |
&Reply($client, \$res, $userinput); |
| |
return 1; |
| |
} |
| |
®ister_handler("inst_usertypes", \&inst_usertypes_handler, 0, 1, 0); |
| |
|
| |
# mkpath makes all directories for a file, expects an absolute path with a |
| |
# file or a trailing / if just a dir is passed |
| |
# returns 1 on success 0 on failure |
| |
sub mkpath { |
| |
my ($file)=@_; |
| |
my @parts=split(/\//,$file,-1); |
| |
my $now=$parts[0].'/'.$parts[1].'/'.$parts[2]; |
| |
for (my $i=3;$i<= ($#parts-1);$i++) { |
| |
$now.='/'.$parts[$i]; |
| |
if (!-e $now) { |
| |
if (!mkdir($now,0770)) { return 0; } |
| |
} |
| |
} |
| |
return 1; |
| |
} |
| |
|
| |
#--------------------------------------------------------------- |
| |
# |
| |
# Getting, decoding and dispatching requests: |
| |
# |
| |
# |
| |
# Get a Request: |
| |
# Gets a Request message from the client. The transaction |
| |
# is defined as a 'line' of text. We remove the new line |
| |
# from the text line. |
| |
# |
| |
sub get_request { |
| |
my $input = <$client>; |
| |
chomp($input); |
| |
|
| |
&Debug("get_request: Request = $input\n"); |
| |
|
| |
&status('Processing '.$clientname.':'.$input); |
| |
|
| |
return $input; |
| |
} |
| |
#--------------------------------------------------------------- |
| |
# |
| |
# Process a request. This sub should shrink as each action |
| |
# gets farmed out into a separat sub that is registered |
| |
# with the dispatch hash. |
| |
# |
| |
# Parameters: |
| |
# user_input - The request received from the client (lonc). |
| |
# Returns: |
| |
# true to keep processing, false if caller should exit. |
| |
# |
| |
sub process_request { |
| |
my ($userinput) = @_; # Easier for now to break style than to |
| |
# fix all the userinput -> user_input. |
| |
my $wasenc = 0; # True if request was encrypted. |
| |
# ------------------------------------------------------------ See if encrypted |
| |
# for command |
| |
# sethost:<server> |
| |
# <command>:<args> |
| |
# we just send it to the processor |
| |
# for |
| |
# sethost:<server>:<command>:<args> |
| |
# we do the implict set host and then do the command |
| |
if ($userinput =~ /^sethost:/) { |
| |
(my $cmd,my $newid,$userinput) = split(':',$userinput,3); |
| |
if (defined($userinput)) { |
| |
&sethost("$cmd:$newid"); |
| |
} else { |
| |
$userinput = "$cmd:$newid"; |
| |
} |
| |
} |
| |
|
| |
if ($userinput =~ /^enc/) { |
| |
$userinput = decipher($userinput); |
| |
$wasenc=1; |
| |
if(!$userinput) { # Cipher not defined. |
| |
&Failure($client, "error: Encrypted data without negotated key\n"); |
| |
return 0; |
| |
} |
| |
} |
| |
Debug("process_request: $userinput\n"); |
| |
|
| |
# |
| |
# The 'correct way' to add a command to lond is now to |
| |
# write a sub to execute it and Add it to the command dispatch |
| |
# hash via a call to register_handler.. The comments to that |
| |
# sub should give you enough to go on to show how to do this |
| |
# along with the examples that are building up as this code |
| |
# is getting refactored. Until all branches of the |
| |
# if/elseif monster below have been factored out into |
| |
# separate procesor subs, if the dispatch hash is missing |
| |
# the command keyword, we will fall through to the remainder |
| |
# of the if/else chain below in order to keep this thing in |
| |
# working order throughout the transmogrification. |
| |
|
| |
my ($command, $tail) = split(/:/, $userinput, 2); |
| |
chomp($command); |
| |
chomp($tail); |
| |
$tail =~ s/(\r)//; # This helps people debugging with e.g. telnet. |
| |
$command =~ s/(\r)//; # And this too for parameterless commands. |
| |
if(!$tail) { |
| |
$tail =""; # defined but blank. |
| |
} |
| |
|
| |
&Debug("Command received: $command, encoded = $wasenc"); |
| |
|
| |
if(defined $Dispatcher{$command}) { |
| |
|
| |
my $dispatch_info = $Dispatcher{$command}; |
| |
my $handler = $$dispatch_info[0]; |
| |
my $need_encode = $$dispatch_info[1]; |
| |
my $client_types = $$dispatch_info[2]; |
| |
Debug("Matched dispatch hash: mustencode: $need_encode " |
| |
."ClientType $client_types"); |
| |
|
| |
# Validate the request: |
| |
|
| |
my $ok = 1; |
| |
my $requesterprivs = 0; |
| |
if(&isClient()) { |
| |
$requesterprivs |= $CLIENT_OK; |
| |
} |
| |
if(&isManager()) { |
| |
$requesterprivs |= $MANAGER_OK; |
| |
} |
| |
if($need_encode && (!$wasenc)) { |
| |
Debug("Must encode but wasn't: $need_encode $wasenc"); |
| |
$ok = 0; |
| |
} |
| |
if(($client_types & $requesterprivs) == 0) { |
| |
Debug("Client not privileged to do this operation"); |
| |
$ok = 0; |
| |
} |
| |
|
| |
if($ok) { |
| |
Debug("Dispatching to handler $command $tail"); |
| |
my $keep_going = &$handler($command, $tail, $client); |
| |
return $keep_going; |
| |
} else { |
| |
Debug("Refusing to dispatch because client did not match requirements"); |
| |
Failure($client, "refused\n", $userinput); |
| |
return 1; |
| |
} |
| |
|
| |
} |
| |
|
| |
print $client "unknown_cmd\n"; |
| |
# -------------------------------------------------------------------- complete |
| |
Debug("process_request - returning 1"); |
| |
return 1; |
| |
} |
| |
# |
| |
# Decipher encoded traffic |
| |
# Parameters: |
| |
# input - Encoded data. |
| |
# Returns: |
| |
# Decoded data or undef if encryption key was not yet negotiated. |
| |
# Implicit input: |
| |
# cipher - This global holds the negotiated encryption key. |
| |
# |
| |
sub decipher { |
| |
my ($input) = @_; |
| |
my $output = ''; |
| |
|
| |
|
| |
if($cipher) { |
| |
my($enc, $enclength, $encinput) = split(/:/, $input); |
| |
for(my $encidx = 0; $encidx < length($encinput); $encidx += 16) { |
| |
$output .= |
| |
$cipher->decrypt(pack("H16", substr($encinput, $encidx, 16))); |
| |
} |
| |
return substr($output, 0, $enclength); |
| |
} else { |
| |
return undef; |
| |
} |
| |
} |
| |
|
| |
# |
| |
# Register a command processor. This function is invoked to register a sub |
| |
# to process a request. Once registered, the ProcessRequest sub can automatically |
| |
# dispatch requests to an appropriate sub, and do the top level validity checking |
| |
# as well: |
| |
# - Is the keyword recognized. |
| |
# - Is the proper client type attempting the request. |
| |
# - Is the request encrypted if it has to be. |
| |
# Parameters: |
| |
# $request_name - Name of the request being registered. |
| |
# This is the command request that will match |
| |
# against the hash keywords to lookup the information |
| |
# associated with the dispatch information. |
| |
# $procedure - Reference to a sub to call to process the request. |
| |
# All subs get called as follows: |
| |
# Procedure($cmd, $tail, $replyfd, $key) |
| |
# $cmd - the actual keyword that invoked us. |
| |
# $tail - the tail of the request that invoked us. |
| |
# $replyfd- File descriptor connected to the client |
| |
# $must_encode - True if the request must be encoded to be good. |
| |
# $client_ok - True if it's ok for a client to request this. |
| |
# $manager_ok - True if it's ok for a manager to request this. |
| |
# Side effects: |
| |
# - On success, the Dispatcher hash has an entry added for the key $RequestName |
| |
# - On failure, the program will die as it's a bad internal bug to try to |
| |
# register a duplicate command handler. |
| |
# |
| |
sub register_handler { |
| |
my ($request_name,$procedure,$must_encode, $client_ok,$manager_ok) = @_; |
| |
|
| |
# Don't allow duplication# |
| |
|
| |
if (defined $Dispatcher{$request_name}) { |
| |
die "Attempting to define a duplicate request handler for $request_name\n"; |
| |
} |
| |
# Build the client type mask: |
| |
|
| |
my $client_type_mask = 0; |
| |
if($client_ok) { |
| |
$client_type_mask |= $CLIENT_OK; |
| |
} |
| |
if($manager_ok) { |
| |
$client_type_mask |= $MANAGER_OK; |
| |
} |
| |
|
| |
# Enter the hash: |
| |
|
| |
my @entry = ($procedure, $must_encode, $client_type_mask); |
| |
|
| |
$Dispatcher{$request_name} = \@entry; |
| |
|
| |
} |
| |
|
| |
|
| |
#------------------------------------------------------------------ |
| |
|
| |
|
| |
|
| |
|
| |
# |
| |
# Convert an error return code from lcpasswd to a string value. |
| |
# |
| |
sub lcpasswdstrerror { |
| |
my $ErrorCode = shift; |
| |
if(($ErrorCode < 0) || ($ErrorCode > $lastpwderror)) { |
| |
return "lcpasswd Unrecognized error return value ".$ErrorCode; |
| |
} else { |
| |
return $passwderrors[$ErrorCode]; |
| |
} |
| |
} |
| |
|
| # grabs exception and records it to log before exiting |
# grabs exception and records it to log before exiting |
| sub catchexception { |
sub catchexception { |
| my ($error)=@_; |
my ($error)=@_; |
| $SIG{'QUIT'}='DEFAULT'; |
$SIG{'QUIT'}='DEFAULT'; |
| $SIG{__DIE__}='DEFAULT'; |
$SIG{__DIE__}='DEFAULT'; |
| &logthis("<font color=red>CRITICAL: " |
&status("Catching exception"); |
| ."ABNORMAL EXIT. Child $$ for server $wasserver died through " |
&logthis("<font color='red'>CRITICAL: " |
| |
."ABNORMAL EXIT. Child $$ for server ".$perlvar{'lonHostID'}." died through " |
| ."a crash with this error msg->[$error]</font>"); |
."a crash with this error msg->[$error]</font>"); |
| |
&logthis('Famous last words: '.$status.' - '.$lastlog); |
| if ($client) { print $client "error: $error\n"; } |
if ($client) { print $client "error: $error\n"; } |
| |
$server->close(); |
| die($error); |
die($error); |
| } |
} |
| |
sub timeout { |
| # grabs exception and records it to log before exiting |
&status("Handling Timeout"); |
| # NOTE: we must NOT use the regular (non-overrided) die function in |
&logthis("<font color='red'>CRITICAL: TIME OUT ".$$."</font>"); |
| # the code because a handler CANNOT be attached to it |
&catchexception('Timeout'); |
| # (despite what some of the documentation says about SIG{__DIE__}. |
|
| |
|
| sub catchdie { |
|
| my ($message)=@_; |
|
| $SIG{'QUIT'}='DEFAULT'; |
|
| $SIG{__DIE__}='DEFAULT'; |
|
| &logthis("<font color=red>CRITICAL: " |
|
| ."ABNORMAL EXIT. Child $$ for server $wasserver died through " |
|
| ."\_\_DIE\_\_ with this error msg->[$message]</font>"); |
|
| if ($client) { print $client "error: $message\n"; } |
|
| die($message); |
|
| } |
} |
| |
|
| # -------------------------------- Set signal handlers to record abnormal exits |
# -------------------------------- Set signal handlers to record abnormal exits |
| |
|
| |
|
| $SIG{'QUIT'}=\&catchexception; |
$SIG{'QUIT'}=\&catchexception; |
| $SIG{__DIE__}=\&catchexception; |
$SIG{__DIE__}=\&catchexception; |
| |
|
| # ------------------------------------ Read httpd access.conf and get variables |
# ---------------------------------- Read loncapa_apache.conf and loncapa.conf |
| |
&status("Read loncapa.conf and loncapa_apache.conf"); |
| open (CONFIG,"/etc/httpd/conf/access.conf") |
my $perlvarref=LONCAPA::Configuration::read_conf('loncapa.conf'); |
| || catchdie "Can't read access.conf"; |
%perlvar=%{$perlvarref}; |
| |
undef $perlvarref; |
| while ($configline=<CONFIG>) { |
|
| if ($configline =~ /PerlSetVar/) { |
# ----------------------------- Make sure this process is running from user=www |
| my ($dummy,$varname,$varvalue)=split(/\s+/,$configline); |
my $wwwid=getpwnam('www'); |
| chomp($varvalue); |
if ($wwwid!=$<) { |
| $perlvar{$varname}=$varvalue; |
my $emailto="$perlvar{'lonAdmEMail'},$perlvar{'lonSysEMail'}"; |
| } |
my $subj="LON: $currenthostid User ID mismatch"; |
| |
system("echo 'User ID mismatch. lond must be run as user www.' |". |
| |
" mail -s '$subj' $emailto > /dev/null"); |
| |
exit 1; |
| } |
} |
| close(CONFIG); |
|
| |
|
| # --------------------------------------------- Check if other instance running |
# --------------------------------------------- Check if other instance running |
| |
|
|
Line 82 if (-e $pidfile) {
|
Line 6762 if (-e $pidfile) {
|
| my $lfh=IO::File->new("$pidfile"); |
my $lfh=IO::File->new("$pidfile"); |
| my $pide=<$lfh>; |
my $pide=<$lfh>; |
| chomp($pide); |
chomp($pide); |
| if (kill 0 => $pide) { catchdie "already running"; } |
if (kill 0 => $pide) { die "already running"; } |
| } |
} |
| |
|
| $PREFORK=4; # number of children to maintain, at least four spare |
|
| |
|
| # ------------------------------------------------------------- Read hosts file |
# ------------------------------------------------------------- Read hosts file |
| |
|
| open (CONFIG,"$perlvar{'lonTabDir'}/hosts.tab") |
|
| || catchdie "Can't read host file"; |
|
| |
|
| while ($configline=<CONFIG>) { |
|
| my ($id,$domain,$role,$name,$ip)=split(/:/,$configline); |
|
| chomp($ip); |
|
| $hostid{$ip}=$id; |
|
| if ($id eq $perlvar{'lonHostID'}) { $thisserver=$name; } |
|
| $PREFORK++; |
|
| } |
|
| close(CONFIG); |
|
| |
|
| # establish SERVER socket, bind and listen. |
# establish SERVER socket, bind and listen. |
| $server = IO::Socket::INET->new(LocalPort => $perlvar{'londPort'}, |
$server = IO::Socket::INET->new(LocalPort => $perlvar{'londPort'}, |
| Type => SOCK_STREAM, |
Type => SOCK_STREAM, |
| Proto => 'tcp', |
Proto => 'tcp', |
| Reuse => 1, |
ReuseAddr => 1, |
| Listen => 10 ) |
Listen => 10 ) |
| or catchdie "making socket: $@\n"; |
or die "making socket: $@\n"; |
| |
|
| # --------------------------------------------------------- Do global variables |
# --------------------------------------------------------- Do global variables |
| |
|
| # global variables |
# global variables |
| |
|
| $MAX_CLIENTS_PER_CHILD = 5; # number of clients each child should |
my %children = (); # keys are current child process IDs |
| # process |
|
| %children = (); # keys are current child process IDs |
|
| $children = 0; # current number of children |
|
| |
|
| sub REAPER { # takes care of dead children |
sub REAPER { # takes care of dead children |
| $SIG{CHLD} = \&REAPER; |
$SIG{CHLD} = \&REAPER; |
| my $pid = wait; |
&status("Handling child death"); |
| $children --; |
my $pid; |
| &logthis("Child $pid died"); |
do { |
| delete $children{$pid}; |
$pid = waitpid(-1,&WNOHANG()); |
| |
if (defined($children{$pid})) { |
| |
&logthis("Child $pid died"); |
| |
delete($children{$pid}); |
| |
} elsif ($pid > 0) { |
| |
&logthis("Unknown Child $pid died"); |
| |
} |
| |
} while ( $pid > 0 ); |
| |
foreach my $child (keys(%children)) { |
| |
$pid = waitpid($child,&WNOHANG()); |
| |
if ($pid > 0) { |
| |
&logthis("Child $child - $pid looks like we missed it's death"); |
| |
delete($children{$pid}); |
| |
} |
| |
} |
| |
&status("Finished Handling child death"); |
| } |
} |
| |
|
| sub HUNTSMAN { # signal handler for SIGINT |
sub HUNTSMAN { # signal handler for SIGINT |
| |
&status("Killing children (INT)"); |
| local($SIG{CHLD}) = 'IGNORE'; # we're going to kill our children |
local($SIG{CHLD}) = 'IGNORE'; # we're going to kill our children |
| kill 'INT' => keys %children; |
kill 'INT' => keys %children; |
| |
&logthis("Free socket: ".shutdown($server,2)); # free up socket |
| my $execdir=$perlvar{'lonDaemons'}; |
my $execdir=$perlvar{'lonDaemons'}; |
| unlink("$execdir/logs/lond.pid"); |
unlink("$execdir/logs/lond.pid"); |
| &logthis("<font color=red>CRITICAL: Shutting down</font>"); |
&logthis("<font color='red'>CRITICAL: Shutting down</font>"); |
| |
&status("Done killing children"); |
| exit; # clean up with dignity |
exit; # clean up with dignity |
| } |
} |
| |
|
| sub HUPSMAN { # signal handler for SIGHUP |
sub HUPSMAN { # signal handler for SIGHUP |
| local($SIG{CHLD}) = 'IGNORE'; # we're going to kill our children |
local($SIG{CHLD}) = 'IGNORE'; # we're going to kill our children |
| |
&status("Killing children for restart (HUP)"); |
| kill 'INT' => keys %children; |
kill 'INT' => keys %children; |
| close($server); # free up socket |
&logthis("Free socket: ".shutdown($server,2)); # free up socket |
| &logthis("<font color=red>CRITICAL: Restarting</font>"); |
&logthis("<font color='red'>CRITICAL: Restarting</font>"); |
| my $execdir=$perlvar{'lonDaemons'}; |
my $execdir=$perlvar{'lonDaemons'}; |
| |
unlink("$execdir/logs/lond.pid"); |
| |
&status("Restarting self (HUP)"); |
| exec("$execdir/lond"); # here we go again |
exec("$execdir/lond"); # here we go again |
| } |
} |
| |
|
| |
# |
| |
# Reload the Apache daemon's state. |
| |
# This is done by invoking /home/httpd/perl/apachereload |
| |
# a setuid perl script that can be root for us to do this job. |
| |
# |
| |
sub ReloadApache { |
| |
# --------------------------- Handle case of another apachereload process (locking) |
| |
if (&LONCAPA::try_to_lock('/tmp/lock_apachereload')) { |
| |
my $execdir = $perlvar{'lonDaemons'}; |
| |
my $script = $execdir."/apachereload"; |
| |
system($script); |
| |
unlink('/tmp/lock_apachereload'); # Remove the lock file. |
| |
} |
| |
} |
| |
|
| |
# |
| |
# Called in response to a USR2 signal. |
| |
# - Reread hosts.tab |
| |
# - All children connected to hosts that were removed from hosts.tab |
| |
# are killed via SIGINT |
| |
# - All children connected to previously existing hosts are sent SIGUSR1 |
| |
# - Our internal hosts hash is updated to reflect the new contents of |
| |
# hosts.tab causing connections from hosts added to hosts.tab to |
| |
# now be honored. |
| |
# |
| |
sub UpdateHosts { |
| |
&status("Reload hosts.tab"); |
| |
logthis('<font color="blue"> Updating connections </font>'); |
| |
# |
| |
# The %children hash has the set of IP's we currently have children |
| |
# on. These need to be matched against records in the hosts.tab |
| |
# Any ip's no longer in the table get killed off they correspond to |
| |
# either dropped or changed hosts. Note that the re-read of the table |
| |
# will take care of new and changed hosts as connections come into being. |
| |
|
| |
&Apache::lonnet::reset_hosts_info(); |
| |
|
| |
foreach my $child (keys(%children)) { |
| |
my $childip = $children{$child}; |
| |
if ($childip ne '127.0.0.1' |
| |
&& !defined(&Apache::lonnet::get_hosts_from_ip($childip))) { |
| |
logthis('<font color="blue"> UpdateHosts killing child ' |
| |
." $child for ip $childip </font>"); |
| |
kill('INT', $child); |
| |
} else { |
| |
logthis('<font color="green"> keeping child for ip ' |
| |
." $childip (pid=$child) </font>"); |
| |
} |
| |
} |
| |
ReloadApache; |
| |
&status("Finished reloading hosts.tab"); |
| |
} |
| |
|
| |
|
| |
sub checkchildren { |
| |
&status("Checking on the children (sending signals)"); |
| |
&initnewstatus(); |
| |
&logstatus(); |
| |
&logthis('Going to check on the children'); |
| |
my $docdir=$perlvar{'lonDocRoot'}; |
| |
foreach (sort keys %children) { |
| |
#sleep 1; |
| |
unless (kill 'USR1' => $_) { |
| |
&logthis ('Child '.$_.' is dead'); |
| |
&logstatus($$.' is dead'); |
| |
delete($children{$_}); |
| |
} |
| |
} |
| |
sleep 5; |
| |
$SIG{ALRM} = sub { Debug("timeout"); |
| |
die "timeout"; }; |
| |
$SIG{__DIE__} = 'DEFAULT'; |
| |
&status("Checking on the children (waiting for reports)"); |
| |
foreach (sort keys %children) { |
| |
unless (-e "$docdir/lon-status/londchld/$_.txt") { |
| |
eval { |
| |
alarm(300); |
| |
&logthis('Child '.$_.' did not respond'); |
| |
kill 9 => $_; |
| |
#$emailto="$perlvar{'lonAdmEMail'},$perlvar{'lonSysEMail'}"; |
| |
#$subj="LON: $currenthostid killed lond process $_"; |
| |
#my $result=`echo 'Killed lond process $_.' | mailto $emailto -s '$subj' > /dev/null`; |
| |
#$execdir=$perlvar{'lonDaemons'}; |
| |
#$result=`/bin/cp $execdir/logs/lond.log $execdir/logs/lond.log.$_`; |
| |
delete($children{$_}); |
| |
alarm(0); |
| |
} |
| |
} |
| |
} |
| |
$SIG{ALRM} = 'DEFAULT'; |
| |
$SIG{__DIE__} = \&catchexception; |
| |
&status("Finished checking children"); |
| |
&logthis('Finished Checking children'); |
| |
} |
| |
|
| # --------------------------------------------------------------------- Logging |
# --------------------------------------------------------------------- Logging |
| |
|
| sub logthis { |
sub logthis { |
|
Line 152 sub logthis {
|
Line 6933 sub logthis {
|
| my $fh=IO::File->new(">>$execdir/logs/lond.log"); |
my $fh=IO::File->new(">>$execdir/logs/lond.log"); |
| my $now=time; |
my $now=time; |
| my $local=localtime($now); |
my $local=localtime($now); |
| |
$lastlog=$local.': '.$message; |
| print $fh "$local ($$): $message\n"; |
print $fh "$local ($$): $message\n"; |
| } |
} |
| |
|
| |
# ------------------------- Conditional log if $DEBUG true. |
| |
sub Debug { |
| |
my $message = shift; |
| |
if($DEBUG) { |
| |
&logthis($message); |
| |
} |
| |
} |
| |
|
| # -------------------------------------------------------- Escape Special Chars |
# |
| |
# Sub to do replies to client.. this gives a hook for some |
| sub escape { |
# debug tracing too: |
| my $str=shift; |
# Parameters: |
| $str =~ s/(\W)/"%".unpack('H2',$1)/eg; |
# fd - File open on client. |
| return $str; |
# reply - Text to send to client. |
| |
# request - Original request from client. |
| |
# |
| |
sub Reply { |
| |
my ($fd, $reply, $request) = @_; |
| |
if (ref($reply)) { |
| |
print $fd $$reply; |
| |
print $fd "\n"; |
| |
if ($DEBUG) { Debug("Request was $request Reply was $$reply"); } |
| |
} else { |
| |
print $fd $reply; |
| |
if ($DEBUG) { Debug("Request was $request Reply was $reply"); } |
| |
} |
| |
$Transactions++; |
| } |
} |
| |
|
| # ----------------------------------------------------- Un-Escape Special Chars |
|
| |
|
| sub unescape { |
# |
| my $str=shift; |
# Sub to report a failure. |
| $str =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg; |
# This function: |
| return $str; |
# - Increments the failure statistic counters. |
| |
# - Invokes Reply to send the error message to the client. |
| |
# Parameters: |
| |
# fd - File descriptor open on the client |
| |
# reply - Reply text to emit. |
| |
# request - The original request message (used by Reply |
| |
# to debug if that's enabled. |
| |
# Implicit outputs: |
| |
# $Failures- The number of failures is incremented. |
| |
# Reply (invoked here) sends a message to the |
| |
# client: |
| |
# |
| |
sub Failure { |
| |
my $fd = shift; |
| |
my $reply = shift; |
| |
my $request = shift; |
| |
|
| |
$Failures++; |
| |
Reply($fd, $reply, $request); # That's simple eh? |
| } |
} |
| |
# ------------------------------------------------------------------ Log status |
| |
|
| # ----------------------------------------------------------- Send USR1 to lonc |
sub logstatus { |
| |
&status("Doing logging"); |
| sub reconlonc { |
my $docdir=$perlvar{'lonDocRoot'}; |
| my $peerfile=shift; |
{ |
| &logthis("Trying to reconnect for $peerfile"); |
my $fh=IO::File->new(">$docdir/lon-status/londchld/$$.txt"); |
| my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid"; |
print $fh $status."\n".$lastlog."\n".time."\n$keymode"; |
| if (my $fh=IO::File->new("$loncfile")) { |
$fh->close(); |
| my $loncpid=<$fh>; |
|
| chomp($loncpid); |
|
| if (kill 0 => $loncpid) { |
|
| &logthis("lonc at pid $loncpid responding, sending USR1"); |
|
| kill USR1 => $loncpid; |
|
| sleep 1; |
|
| if (-e "$peerfile") { return; } |
|
| &logthis("$peerfile still not there, give it another try"); |
|
| sleep 5; |
|
| if (-e "$peerfile") { return; } |
|
| &logthis( |
|
| "<font color=blue>WARNING: $peerfile still not there, giving up</font>"); |
|
| } else { |
|
| &logthis( |
|
| "<font color=red>CRITICAL: " |
|
| ."lonc at pid $loncpid not responding, giving up</font>"); |
|
| } |
|
| } else { |
|
| &logthis('<font color=red>CRITICAL: lonc not running, giving up</font>'); |
|
| } |
} |
| |
&status("Finished $$.txt"); |
| |
{ |
| |
open(LOG,">>$docdir/lon-status/londstatus.txt"); |
| |
flock(LOG,LOCK_EX); |
| |
print LOG $$."\t".$clientname."\t".$currenthostid."\t" |
| |
.$status."\t".$lastlog."\t $keymode\n"; |
| |
flock(LOG,LOCK_UN); |
| |
close(LOG); |
| |
} |
| |
&status("Finished logging"); |
| } |
} |
| |
|
| # -------------------------------------------------- Non-critical communication |
sub initnewstatus { |
| |
my $docdir=$perlvar{'lonDocRoot'}; |
| sub subreply { |
my $fh=IO::File->new(">$docdir/lon-status/londstatus.txt"); |
| my ($cmd,$server)=@_; |
my $now=time(); |
| my $peerfile="$perlvar{'lonSockDir'}/$server"; |
my $local=localtime($now); |
| my $sclient=IO::Socket::UNIX->new(Peer =>"$peerfile", |
print $fh "LOND status $local - parent $$\n\n"; |
| Type => SOCK_STREAM, |
opendir(DIR,"$docdir/lon-status/londchld"); |
| Timeout => 10) |
while (my $filename=readdir(DIR)) { |
| or return "con_lost"; |
unlink("$docdir/lon-status/londchld/$filename"); |
| print $sclient "$cmd\n"; |
} |
| my $answer=<$sclient>; |
closedir(DIR); |
| chomp($answer); |
|
| if (!$answer) { $answer="con_lost"; } |
|
| return $answer; |
|
| } |
} |
| |
|
| sub reply { |
# -------------------------------------------------------------- Status setting |
| my ($cmd,$server)=@_; |
|
| my $answer; |
sub status { |
| if ($server ne $perlvar{'lonHostID'}) { |
my $what=shift; |
| $answer=subreply($cmd,$server); |
my $now=time; |
| if ($answer eq 'con_lost') { |
my $local=localtime($now); |
| $answer=subreply("ping",$server); |
$status=$local.': '.$what; |
| if ($answer ne $server) { |
$0='lond: '.$what.' '.$local; |
| &reconlonc("$perlvar{'lonSockDir'}/$server"); |
|
| } |
|
| $answer=subreply($cmd,$server); |
|
| } |
|
| } else { |
|
| $answer='self_reply'; |
|
| } |
|
| return $answer; |
|
| } |
} |
| |
|
| # -------------------------------------------------------------- Talk to lonsql |
# -------------------------------------------------------------- Talk to lonsql |
| |
|
| sub sqlreply { |
sub sql_reply { |
| my ($cmd)=@_; |
my ($cmd)=@_; |
| my $answer=subsqlreply($cmd); |
my $answer=&sub_sql_reply($cmd); |
| if ($answer eq 'con_lost') { $answer=subsqlreply($cmd); } |
if ($answer eq 'con_lost') { $answer=&sub_sql_reply($cmd); } |
| return $answer; |
return $answer; |
| } |
} |
| |
|
| sub subsqlreply { |
sub sub_sql_reply { |
| my ($cmd)=@_; |
my ($cmd)=@_; |
| my $unixsock="mysqlsock"; |
my $unixsock="mysqlsock"; |
| my $peerfile="$perlvar{'lonSockDir'}/$unixsock"; |
my $peerfile="$perlvar{'lonSockDir'}/$unixsock"; |
|
Line 252 sub subsqlreply {
|
Line 7052 sub subsqlreply {
|
| Type => SOCK_STREAM, |
Type => SOCK_STREAM, |
| Timeout => 10) |
Timeout => 10) |
| or return "con_lost"; |
or return "con_lost"; |
| print $sclient "$cmd\n"; |
print $sclient "$cmd:$currentdomainid\n"; |
| my $answer=<$sclient>; |
my $answer=<$sclient>; |
| chomp($answer); |
chomp($answer); |
| if (!$answer) { $answer="con_lost"; } |
if (!$answer) { $answer="con_lost"; } |
| return $answer; |
return $answer; |
| } |
} |
| |
|
| # -------------------------------------------- Return path to profile directory |
|
| |
|
| sub propath { |
|
| my ($udom,$uname)=@_; |
|
| $udom=~s/\W//g; |
|
| $uname=~s/\W//g; |
|
| my $subdir=$uname.'__'; |
|
| $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/; |
|
| my $proname="$perlvar{'lonUsersDir'}/$udom/$subdir/$uname"; |
|
| return $proname; |
|
| } |
|
| |
|
| # --------------------------------------- Is this the home server of an author? |
# --------------------------------------- Is this the home server of an author? |
| |
|
| sub ishome { |
sub ishome { |
|
Line 288 sub ishome {
|
Line 7076 sub ishome {
|
| # ======================================================= Continue main program |
# ======================================================= Continue main program |
| # ---------------------------------------------------- Fork once and dissociate |
# ---------------------------------------------------- Fork once and dissociate |
| |
|
| $fpid=fork; |
my $fpid=fork; |
| exit if $fpid; |
exit if $fpid; |
| catchdie "Couldn't fork: $!" unless defined ($fpid); |
die "Couldn't fork: $!" unless defined ($fpid); |
| |
|
| POSIX::setsid() or catchdie "Can't start new session: $!"; |
POSIX::setsid() or die "Can't start new session: $!"; |
| |
|
| # ------------------------------------------------------- Write our PID on disk |
# ------------------------------------------------------- Write our PID on disk |
| |
|
| $execdir=$perlvar{'lonDaemons'}; |
my $execdir=$perlvar{'lonDaemons'}; |
| open (PIDSAVE,">$execdir/logs/lond.pid"); |
open (PIDSAVE,">$execdir/logs/lond.pid"); |
| print PIDSAVE "$$\n"; |
print PIDSAVE "$$\n"; |
| close(PIDSAVE); |
close(PIDSAVE); |
| &logthis("<font color=red>CRITICAL: ---------- Starting ----------</font>"); |
&logthis("<font color='red'>CRITICAL: ---------- Starting ----------</font>"); |
| |
&status('Starting'); |
| |
|
| |
|
| # ------------------------------------------------------- Now we are on our own |
|
| |
|
| # Fork off our children. |
|
| for (1 .. $PREFORK) { |
|
| make_new_child(); |
|
| } |
|
| |
|
| # ----------------------------------------------------- Install signal handlers |
# ----------------------------------------------------- Install signal handlers |
| |
|
| |
|
| $SIG{CHLD} = \&REAPER; |
$SIG{CHLD} = \&REAPER; |
| $SIG{INT} = $SIG{TERM} = \&HUNTSMAN; |
$SIG{INT} = $SIG{TERM} = \&HUNTSMAN; |
| $SIG{HUP} = \&HUPSMAN; |
$SIG{HUP} = \&HUPSMAN; |
| |
$SIG{USR1} = \&checkchildren; |
| |
$SIG{USR2} = \&UpdateHosts; |
| |
|
| |
# Read the host hashes: |
| |
&Apache::lonnet::load_hosts_tab(); |
| |
my %iphost = &Apache::lonnet::get_iphost(1); |
| |
|
| |
$dist=`$perlvar{'lonDaemons'}/distprobe`; |
| |
|
| |
my $arch = `uname -i`; |
| |
chomp($arch); |
| |
if ($arch eq 'unknown') { |
| |
$arch = `uname -m`; |
| |
chomp($arch); |
| |
} |
| |
|
| |
# -------------------------------------------------------------- |
| |
# Accept connections. When a connection comes in, it is validated |
| |
# and if good, a child process is created to process transactions |
| |
# along the connection. |
| |
|
| # And maintain the population. |
|
| while (1) { |
while (1) { |
| sleep; # wait for a signal (i.e., child's death) |
&status('Starting accept'); |
| for ($i = $children; $i < $PREFORK; $i++) { |
$client = $server->accept() or next; |
| make_new_child(); # top up the child pool |
&status('Accepted '.$client.' off to spawn'); |
| } |
make_new_child($client); |
| |
&status('Finished spawning'); |
| } |
} |
| |
|
| sub make_new_child { |
sub make_new_child { |
| my $pid; |
my $pid; |
| my $cipher; |
# my $cipher; # Now global |
| my $sigset; |
my $sigset; |
| &logthis("Attempting to start child"); |
|
| |
$client = shift; |
| |
&status('Starting new child '.$client); |
| |
&logthis('<font color="green"> Attempting to start child ('.$client. |
| |
")</font>"); |
| # block signal for fork |
# block signal for fork |
| $sigset = POSIX::SigSet->new(SIGINT); |
$sigset = POSIX::SigSet->new(SIGINT); |
| sigprocmask(SIG_BLOCK, $sigset) |
sigprocmask(SIG_BLOCK, $sigset) |
| or catchdie "Can't block SIGINT for fork: $!\n"; |
or die "Can't block SIGINT for fork: $!\n"; |
| |
|
| catchdie "fork: $!" unless defined ($pid = fork); |
die "fork: $!" unless defined ($pid = fork); |
| |
|
| |
$client->sockopt(SO_KEEPALIVE, 1); # Enable monitoring of |
| |
# connection liveness. |
| |
|
| |
# |
| |
# Figure out who we're talking to so we can record the peer in |
| |
# the pid hash. |
| |
# |
| |
my $caller = getpeername($client); |
| |
my ($port,$iaddr); |
| |
if (defined($caller) && length($caller) > 0) { |
| |
($port,$iaddr)=unpack_sockaddr_in($caller); |
| |
} else { |
| |
&logthis("Unable to determine who caller was, getpeername returned nothing"); |
| |
} |
| |
if (defined($iaddr)) { |
| |
$clientip = inet_ntoa($iaddr); |
| |
Debug("Connected with $clientip"); |
| |
} else { |
| |
&logthis("Unable to determine clientip"); |
| |
$clientip='Unavailable'; |
| |
} |
| |
|
| if ($pid) { |
if ($pid) { |
| # Parent records the child's birth and returns. |
# Parent records the child's birth and returns. |
| sigprocmask(SIG_UNBLOCK, $sigset) |
sigprocmask(SIG_UNBLOCK, $sigset) |
| or catchdie "Can't unblock SIGINT for fork: $!\n"; |
or die "Can't unblock SIGINT for fork: $!\n"; |
| $children{$pid} = 1; |
$children{$pid} = $clientip; |
| $children++; |
&status('Started child '.$pid); |
| |
close($client); |
| return; |
return; |
| } else { |
} else { |
| # Child can *not* return from this subroutine. |
# Child can *not* return from this subroutine. |
| $SIG{INT} = 'DEFAULT'; # make SIGINT kill us as it did before |
$SIG{INT} = 'DEFAULT'; # make SIGINT kill us as it did before |
| |
$SIG{CHLD} = 'DEFAULT'; #make this default so that pwauth returns |
| |
#don't get intercepted |
| |
$SIG{USR1}= \&logstatus; |
| |
$SIG{ALRM}= \&timeout; |
| |
# |
| |
# Block sigpipe as it gets thrownon socket disconnect and we want to |
| |
# deal with that as a read faiure instead. |
| |
# |
| |
my $blockset = POSIX::SigSet->new(SIGPIPE); |
| |
sigprocmask(SIG_BLOCK, $blockset); |
| |
|
| |
$lastlog='Forked '; |
| |
$status='Forked'; |
| |
|
| # unblock signals |
# unblock signals |
| sigprocmask(SIG_UNBLOCK, $sigset) |
sigprocmask(SIG_UNBLOCK, $sigset) |
| or catchdie "Can't unblock SIGINT for fork: $!\n"; |
or die "Can't unblock SIGINT for fork: $!\n"; |
| |
|
| $tmpsnum=0; |
# my $tmpsnum=0; # Now global |
| |
#---------------------------------------------------- kerberos 5 initialization |
| # handle connections until we've reached $MAX_CLIENTS_PER_CHILD |
&Authen::Krb5::init_context(); |
| for ($i=0; $i < $MAX_CLIENTS_PER_CHILD; $i++) { |
|
| $client = $server->accept() or last; |
my $no_ets; |
| |
if ($dist =~ /^(?:centos|rhes|scientific|oracle|rocky|alma)(\d+)/) { |
| |
if ($1 >= 7) { |
| |
$no_ets = 1; |
| |
} |
| |
} elsif ($dist =~ /^suse(\d+\.\d+)$/) { |
| |
if (($1 eq '9.3') || ($1 >= 12.2)) { |
| |
$no_ets = 1; |
| |
} |
| |
} elsif ($dist =~ /^sles(\d+)$/) { |
| |
if ($1 > 11) { |
| |
$no_ets = 1; |
| |
} |
| |
} elsif ($dist =~ /^fedora(\d+)$/) { |
| |
if ($1 < 7) { |
| |
$no_ets = 1; |
| |
} |
| |
} |
| |
unless ($no_ets) { |
| |
&Authen::Krb5::init_ets(); |
| |
} |
| |
|
| |
&status('Accepted connection'); |
| # ============================================================================= |
# ============================================================================= |
| # do something with the connection |
# do something with the connection |
| # ----------------------------------------------------------------------------- |
# ----------------------------------------------------------------------------- |
| # see if we know client and check for spoof IP by challenge |
# see if we know client and 'check' for spoof IP by ineffective challenge |
| my $caller=getpeername($client); |
|
| my ($port,$iaddr)=unpack_sockaddr_in($caller); |
my $outsideip=$clientip; |
| my $clientip=inet_ntoa($iaddr); |
if ($clientip eq '127.0.0.1') { |
| my $clientrec=($hostid{$clientip} ne undef); |
$outsideip=&Apache::lonnet::get_host_ip($perlvar{'lonHostID'}); |
| &logthis( |
} |
| "<font color=yellow>INFO: Connect from $clientip ($hostid{$clientip})</font>"); |
&ReadManagerTable(); |
| my $clientok; |
my $clientrec=defined(&Apache::lonnet::get_hosts_from_ip($outsideip)); |
| if ($clientrec) { |
my $ismanager=($managers{$outsideip} ne undef); |
| my $remotereq=<$client>; |
$clientname = "[unknown]"; |
| $remotereq=~s/\W//g; |
if($clientrec) { # Establish client type. |
| if ($remotereq eq 'init') { |
$ConnectionType = "client"; |
| my $challenge="$$".time; |
$clientname = (&Apache::lonnet::get_hosts_from_ip($outsideip))[-1]; |
| print $client "$challenge\n"; |
if($ismanager) { |
| $remotereq=<$client>; |
$ConnectionType = "both"; |
| $remotereq=~s/\W//g; |
} |
| if ($challenge eq $remotereq) { |
} else { |
| $clientok=1; |
$ConnectionType = "manager"; |
| print $client "ok\n"; |
$clientname = $managers{$outsideip}; |
| } else { |
} |
| &logthis( |
my $clientok; |
| "<font color=blue>WARNING: $clientip did not reply challenge</font>"); |
|
| print $client "bye\n"; |
if ($clientrec || $ismanager) { |
| } |
&status("Waiting for init from $clientip $clientname"); |
| } else { |
&logthis('<font color="yellow">INFO: Connection, '. |
| &logthis( |
$clientip. |
| "<font color=blue>WARNING: " |
" ($clientname) connection type = $ConnectionType </font>" ); |
| ."$clientip failed to initialize: >$remotereq< </font>"); |
&status("Connecting $clientip ($clientname))"); |
| print $client "bye\n"; |
my $remotereq=<$client>; |
| } |
chomp($remotereq); |
| |
Debug("Got init: $remotereq"); |
| |
|
| |
if ($remotereq =~ /^init/) { |
| |
&sethost("sethost:$perlvar{'lonHostID'}"); |
| |
# |
| |
# If the remote is attempting a local init... give that a try: |
| |
# |
| |
(my $i, my $inittype, $clientversion) = split(/:/, $remotereq); |
| |
# For LON-CAPA 2.9, the client session will have sent its LON-CAPA |
| |
# version when initiating the connection. For LON-CAPA 2.8 and older, |
| |
# the version is retrieved from the global %loncaparevs in lonnet.pm. |
| |
# $clientversion contains path to keyfile if $inittype eq 'local' |
| |
# it's overridden below in this case |
| |
$clientversion ||= $Apache::lonnet::loncaparevs{$clientname}; |
| |
|
| |
# If the connection type is ssl, but I didn't get my |
| |
# certificate files yet, then I'll drop back to |
| |
# insecure (if allowed). |
| |
|
| |
if($inittype eq "ssl") { |
| |
my ($ca, $cert) = lonssl::CertificateFile; |
| |
my $kfile = lonssl::KeyFile; |
| |
if((!$ca) || |
| |
(!$cert) || |
| |
(!$kfile)) { |
| |
$inittype = ""; # This forces insecure attempt. |
| |
&logthis("<font color=\"blue\"> Certificates not " |
| |
."installed -- trying insecure auth</font>"); |
| |
} else { # SSL certificates are in place so |
| |
} # Leave the inittype alone. |
| |
} |
| |
|
| |
if($inittype eq "local") { |
| |
$clientversion = $perlvar{'lonVersion'}; |
| |
my $key = LocalConnection($client, $remotereq); |
| |
if($key) { |
| |
Debug("Got local key $key"); |
| |
$clientok = 1; |
| |
my $cipherkey = pack("H32", $key); |
| |
$cipher = new IDEA($cipherkey); |
| |
print $client "ok:local\n"; |
| |
&logthis('<font color="green">' |
| |
. "Successful local authentication </font>"); |
| |
$keymode = "local" |
| |
} else { |
| |
Debug("Failed to get local key"); |
| |
$clientok = 0; |
| |
shutdown($client, 3); |
| |
close $client; |
| |
} |
| |
} elsif ($inittype eq "ssl") { |
| |
my $key = SSLConnection($client); |
| |
if ($key) { |
| |
$clientok = 1; |
| |
my $cipherkey = pack("H32", $key); |
| |
$cipher = new IDEA($cipherkey); |
| |
&logthis('<font color="green">' |
| |
."Successfull ssl authentication with $clientname </font>"); |
| |
$keymode = "ssl"; |
| |
|
| |
} else { |
| |
$clientok = 0; |
| |
close $client; |
| |
} |
| |
|
| |
} else { |
| |
my $ok = InsecureConnection($client); |
| |
if($ok) { |
| |
$clientok = 1; |
| |
&logthis('<font color="green">' |
| |
."Successful insecure authentication with $clientname </font>"); |
| |
print $client "ok\n"; |
| |
$keymode = "insecure"; |
| |
} else { |
| |
&logthis('<font color="yellow">' |
| |
."Attempted insecure connection disallowed </font>"); |
| |
close $client; |
| |
$clientok = 0; |
| |
} |
| |
} |
| } else { |
} else { |
| &logthis( |
&logthis( |
| "<font color=blue>WARNING: Unknown client $clientip</font>"); |
"<font color='blue'>WARNING: " |
| print $client "bye\n"; |
."$clientip failed to initialize: >$remotereq< </font>"); |
| } |
&status('No init '.$clientip); |
| if ($clientok) { |
} |
| |
} else { |
| |
&logthis( |
| |
"<font color='blue'>WARNING: Unknown client $clientip</font>"); |
| |
&status('Hung up on '.$clientip); |
| |
} |
| |
|
| |
if ($clientok) { |
| # ---------------- New known client connecting, could mean machine online again |
# ---------------- New known client connecting, could mean machine online again |
| &reconlonc("$perlvar{'lonSockDir'}/$hostid{$clientip}"); |
if (&Apache::lonnet::get_host_ip($currenthostid) ne $clientip |
| &logthis( |
&& $clientip ne '127.0.0.1') { |
| "<font color=green>Established connection: $hostid{$clientip}</font>"); |
&Apache::lonnet::reconlonc($clientname); |
| |
} |
| |
&logthis("<font color='green'>Established connection: $clientname</font>"); |
| |
&status('Will listen to '.$clientname); |
| # ------------------------------------------------------------ Process requests |
# ------------------------------------------------------------ Process requests |
| while (my $userinput=<$client>) { |
my $keep_going = 1; |
| chomp($userinput); |
my $user_input; |
| my $wasenc=0; |
my $clienthost = &Apache::lonnet::hostname($clientname); |
| # ------------------------------------------------------------ See if encrypted |
my $clientserverhomeID = &Apache::lonnet::get_server_homeID($clienthost); |
| if ($userinput =~ /^enc/) { |
$clienthomedom = &Apache::lonnet::host_domain($clientserverhomeID); |
| if ($cipher) { |
while(($user_input = get_request) && $keep_going) { |
| my ($cmd,$cmdlength,$encinput)=split(/:/,$userinput); |
alarm(120); |
| $userinput=''; |
Debug("Main: Got $user_input\n"); |
| for (my $encidx=0;$encidx<length($encinput);$encidx+=16) { |
$keep_going = &process_request($user_input); |
| $userinput.= |
alarm(0); |
| $cipher->decrypt( |
&status('Listening to '.$clientname." ($keymode)"); |
| pack("H16",substr($encinput,$encidx,16)) |
} |
| ); |
|
| } |
# --------------------------------------------- client unknown or fishy, refuse |
| $userinput=substr($userinput,0,$cmdlength); |
} else { |
| $wasenc=1; |
print $client "refused\n"; |
| } |
$client->close(); |
| } |
&logthis("<font color='blue'>WARNING: " |
| # ------------------------------------------------------------- Normal commands |
."Rejected client $clientip, closing connection</font>"); |
| # ------------------------------------------------------------------------ ping |
} |
| if ($userinput =~ /^ping/) { |
} |
| print $client "$perlvar{'lonHostID'}\n"; |
|
| # ------------------------------------------------------------------------ pong |
# ============================================================================= |
| } elsif ($userinput =~ /^pong/) { |
|
| $reply=reply("ping",$hostid{$clientip}); |
&logthis("<font color='red'>CRITICAL: " |
| print $client "$perlvar{'lonHostID'}:$reply\n"; |
."Disconnect from $clientip ($clientname)</font>"); |
| # ------------------------------------------------------------------------ ekey |
|
| } elsif ($userinput =~ /^ekey/) { |
|
| my $buildkey=time.$$.int(rand 100000); |
# this exit is VERY important, otherwise the child will become |
| $buildkey=~tr/1-6/A-F/; |
# a producer of more and more children, forking yourself into |
| $buildkey=int(rand 100000).$buildkey.int(rand 100000); |
# process death. |
| my $key=$perlvar{'lonHostID'}.$hostid{$clientip}; |
exit; |
| $key=~tr/a-z/A-Z/; |
|
| $key=~tr/G-P/0-9/; |
} |
| $key=~tr/Q-Z/0-9/; |
# |
| $key=$key.$buildkey.$key.$buildkey.$key.$buildkey; |
# Determine if a user is an author for the indicated domain. |
| $key=substr($key,0,32); |
# |
| my $cipherkey=pack("H32",$key); |
# Parameters: |
| $cipher=new IDEA $cipherkey; |
# domain - domain to check in . |
| print $client "$buildkey\n"; |
# user - Name of user to check. |
| # ------------------------------------------------------------------------ load |
# |
| } elsif ($userinput =~ /^load/) { |
# Return: |
| my $loadavg; |
# 1 - User is an author for domain. |
| { |
# 0 - User is not an author for domain. |
| my $loadfile=IO::File->new('/proc/loadavg'); |
sub is_author { |
| $loadavg=<$loadfile>; |
my ($domain, $user) = @_; |
| } |
|
| $loadavg =~ s/\s.*//g; |
&Debug("is_author: $user @ $domain"); |
| my $loadpercent=100*$loadavg/$perlvar{'lonLoadLim'}; |
|
| print $client "$loadpercent\n"; |
my $hashref = &tie_user_hash($domain, $user, "roles", |
| # ------------------------------------------------------------------------ auth |
&GDBM_READER()); |
| } elsif ($userinput =~ /^auth/) { |
|
| if ($wasenc==1) { |
# Author role should show up as a key /domain/_au |
| my ($cmd,$udom,$uname,$upass)=split(/:/,$userinput); |
|
| chomp($upass); |
my $value; |
| $upass=unescape($upass); |
if ($hashref) { |
| my $proname=propath($udom,$uname); |
|
| my $passfilename="$proname/passwd"; |
my $key = "/$domain/_au"; |
| if (-e $passfilename) { |
if (defined($hashref)) { |
| my $pf = IO::File->new($passfilename); |
$value = $hashref->{$key}; |
| my $realpasswd=<$pf>; |
if(!untie_user_hash($hashref)) { |
| chomp($realpasswd); |
return 'error: ' . ($!+0)." untie (GDBM) Failed"; |
| my ($howpwd,$contentpwd)=split(/:/,$realpasswd); |
} |
| my $pwdcorrect=0; |
} |
| if ($howpwd eq 'internal') { |
|
| $pwdcorrect= |
if(defined($value)) { |
| (crypt($upass,$contentpwd) eq $contentpwd); |
&Debug("$user @ $domain is an author"); |
| } elsif ($howpwd eq 'unix') { |
} |
| $contentpwd=(getpwnam($uname))[1]; |
} else { |
| $pwdcorrect= |
return 'error: '.($!+0)." tie (GDBM) Failed"; |
| (crypt($upass,$contentpwd) eq $contentpwd); |
} |
| } elsif ($howpwd eq 'krb4') { |
|
| $pwdcorrect=( |
return defined($value); |
| Authen::Krb4::get_pw_in_tkt($uname,"", |
} |
| $contentpwd,'krbtgt',$contentpwd,1, |
# |
| $upass) == 0); |
# Checks to see if the input roleput request was to set |
| } |
# an author role. If so, creates construction space |
| if ($pwdcorrect) { |
# Parameters: |
| print $client "authorized\n"; |
# request - The request sent to the rolesput subchunk. |
| } else { |
# We're looking for /domain/_au |
| print $client "non_authorized\n"; |
# domain - The domain in which the user is having roles doctored. |
| } |
# user - Name of the user for which the role is being put. |
| } else { |
# authtype - The authentication type associated with the user. |
| print $client "unknown_user\n"; |
# |
| } |
sub manage_permissions { |
| } else { |
my ($request, $domain, $user, $authtype) = @_; |
| print $client "refused\n"; |
# See if the request is of the form /$domain/_au |
| } |
if($request =~ /^(\/\Q$domain\E\/_au)$/) { # It's an author rolesput... |
| # ---------------------------------------------------------------------- passwd |
my $path=$perlvar{'lonDocRoot'}."/priv/$domain"; |
| } elsif ($userinput =~ /^passwd/) { |
unless (-e $path) { |
| if ($wasenc==1) { |
mkdir($path); |
| my |
} |
| ($cmd,$udom,$uname,$upass,$npass)=split(/:/,$userinput); |
unless (-e $path.'/'.$user) { |
| chomp($npass); |
mkdir($path.'/'.$user); |
| my $proname=propath($udom,$uname); |
} |
| my $passfilename="$proname/passwd"; |
} |
| if (-e $passfilename) { |
} |
| my $realpasswd; |
|
| { my $pf = IO::File->new($passfilename); |
|
| $realpasswd=<$pf>; } |
# |
| chomp($realpasswd); |
# Return the full path of a user password file, whether it exists or not. |
| my ($howpwd,$contentpwd)=split(/:/,$realpasswd); |
# Parameters: |
| if ($howpwd eq 'internal') { |
# domain - Domain in which the password file lives. |
| if (crypt($upass,$contentpwd) eq $contentpwd) { |
# user - name of the user. |
| my $salt=time; |
# Returns: |
| $salt=substr($salt,6,2); |
# Full passwd path: |
| my $ncpass=crypt($npass,$salt); |
# |
| { my $pf = IO::File->new(">$passfilename"); |
sub password_path { |
| print $pf "internal:$ncpass\n";; } |
my ($domain, $user) = @_; |
| print $client "ok\n"; |
return &propath($domain, $user).'/passwd'; |
| } else { |
} |
| print $client "non_authorized\n"; |
|
| } |
# Password Filename |
| } else { |
# Returns the path to a passwd file given domain and user... only if |
| print $client "auth_mode_error\n"; |
# it exists. |
| } |
# Parameters: |
| } else { |
# domain - Domain in which to search. |
| print $client "unknown_user\n"; |
# user - username. |
| } |
# Returns: |
| } else { |
# - If the password file exists returns its path. |
| print $client "refused\n"; |
# - If the password file does not exist, returns undefined. |
| } |
# |
| # ------------------------------------------------------------------------ home |
sub password_filename { |
| } elsif ($userinput =~ /^home/) { |
my ($domain, $user) = @_; |
| my ($cmd,$udom,$uname)=split(/:/,$userinput); |
|
| chomp($uname); |
Debug ("PasswordFilename called: dom = $domain user = $user"); |
| my $proname=propath($udom,$uname); |
|
| if (-e $proname) { |
my $path = &password_path($domain, $user); |
| print $client "found\n"; |
Debug("PasswordFilename got path: $path"); |
| } else { |
if(-e $path) { |
| print $client "not_found\n"; |
return $path; |
| } |
} else { |
| # ---------------------------------------------------------------------- update |
return undef; |
| } elsif ($userinput =~ /^update/) { |
} |
| my ($cmd,$fname)=split(/:/,$userinput); |
} |
| my $ownership=ishome($fname); |
|
| if ($ownership eq 'not_owner') { |
# |
| if (-e $fname) { |
# Rewrite the contents of the user's passwd file. |
| my ($dev,$ino,$mode,$nlink, |
# Parameters: |
| $uid,$gid,$rdev,$size, |
# domain - domain of the user. |
| $atime,$mtime,$ctime, |
# name - User's name. |
| $blksize,$blocks)=stat($fname); |
# contents - New contents of the file. |
| $now=time; |
# saveold - (optional). If true save old file in a passwd.bak file. |
| $since=$now-$atime; |
# Returns: |
| if ($since>$perlvar{'lonExpire'}) { |
# 0 - Failed. |
| $reply= |
# 1 - Success. |
| reply("unsub:$fname","$hostid{$clientip}"); |
# |
| unlink("$fname"); |
sub rewrite_password_file { |
| } else { |
my ($domain, $user, $contents, $saveold) = @_; |
| my $transname="$fname.in.transfer"; |
|
| my $remoteurl= |
my $file = &password_filename($domain, $user); |
| reply("sub:$fname","$hostid{$clientip}"); |
if (defined $file) { |
| my $response; |
if ($saveold) { |
| { |
my $bakfile = $file.'.bak'; |
| my $ua=new LWP::UserAgent; |
if (CopyFile($file,$bakfile)) { |
| my $request=new HTTP::Request('GET',"$remoteurl"); |
chmod(0400,$bakfile); |
| $response=$ua->request($request,$transname); |
&logthis("Old password saved in passwd.bak for internally authenticated user: $user:$domain"); |
| } |
} else { |
| if ($response->is_error()) { |
&logthis("Failed to save old password in passwd.bak for internally authenticated user: $user:$domain"); |
| unlink($transname); |
} |
| my $message=$response->status_line; |
} |
| &logthis( |
my $pf = IO::File->new(">$file"); |
| "LWP GET: $message for $fname ($remoteurl)"); |
if($pf) { |
| } else { |
print $pf "$contents\n"; |
| if ($remoteurl!~/\.meta$/) { |
return 1; |
| my $mrequest= |
} else { |
| new HTTP::Request('GET',$remoteurl.'.meta'); |
return 0; |
| my $mresponse= |
} |
| $ua->request($mrequest,$fname.'.meta'); |
} else { |
| if ($mresponse->is_error()) { |
return 0; |
| unlink($fname.'.meta'); |
} |
| } |
|
| } |
} |
| rename($transname,$fname); |
|
| } |
# |
| } |
# get_auth_type - Determines the authorization type of a user in a domain. |
| print $client "ok\n"; |
|
| } else { |
# Returns the authorization type or nouser if there is no such user. |
| print $client "not_found\n"; |
# |
| |
sub get_auth_type { |
| |
my ($domain, $user) = @_; |
| |
|
| |
Debug("get_auth_type( $domain, $user ) \n"); |
| |
my $proname = &propath($domain, $user); |
| |
my $passwdfile = "$proname/passwd"; |
| |
if( -e $passwdfile ) { |
| |
my $pf = IO::File->new($passwdfile); |
| |
my $realpassword = <$pf>; |
| |
chomp($realpassword); |
| |
Debug("Password info = $realpassword\n"); |
| |
my ($authtype, $contentpwd) = split(/:/, $realpassword); |
| |
Debug("Authtype = $authtype, content = $contentpwd\n"); |
| |
return "$authtype:$contentpwd"; |
| |
} else { |
| |
Debug("Returning nouser"); |
| |
return "nouser"; |
| |
} |
| |
} |
| |
|
| |
# |
| |
# Validate a user given their domain, name and password. This utility |
| |
# function is used by both AuthenticateHandler and ChangePasswordHandler |
| |
# to validate the login credentials of a user. |
| |
# Parameters: |
| |
# $domain - The domain being logged into (this is required due to |
| |
# the capability for multihomed systems. |
| |
# $user - The name of the user being validated. |
| |
# $password - The user's propoposed password. |
| |
# |
| |
# Returns: |
| |
# 1 - The domain,user,pasword triplet corresponds to a valid |
| |
# user. |
| |
# 0 - The domain,user,password triplet is not a valid user. |
| |
# |
| |
sub validate_user { |
| |
my ($domain, $user, $password, $checkdefauth) = @_; |
| |
|
| |
# Why negative ~pi you may well ask? Well this function is about |
| |
# authentication, and therefore very important to get right. |
| |
# I've initialized the flag that determines whether or not I've |
| |
# validated correctly to a value it's not supposed to get. |
| |
# At the end of this function. I'll ensure that it's not still that |
| |
# value so we don't just wind up returning some accidental value |
| |
# as a result of executing an unforseen code path that |
| |
# did not set $validated. At the end of valid execution paths, |
| |
# validated shoule be 1 for success or 0 for failuer. |
| |
|
| |
my $validated = -3.14159; |
| |
|
| |
# How we authenticate is determined by the type of authentication |
| |
# the user has been assigned. If the authentication type is |
| |
# "nouser", the user does not exist so we will return 0. |
| |
|
| |
my $contents = &get_auth_type($domain, $user); |
| |
my ($howpwd, $contentpwd) = split(/:/, $contents); |
| |
|
| |
my $null = pack("C",0); # Used by kerberos auth types. |
| |
|
| |
if ($howpwd eq 'nouser') { |
| |
if ($checkdefauth) { |
| |
my %domdefaults = &Apache::lonnet::get_domain_defaults($domain); |
| |
if ($domdefaults{'auth_def'} eq 'localauth') { |
| |
$howpwd = $domdefaults{'auth_def'}; |
| |
$contentpwd = $domdefaults{'auth_arg_def'}; |
| |
} elsif ((($domdefaults{'auth_def'} eq 'krb4') || |
| |
($domdefaults{'auth_def'} eq 'krb5')) && |
| |
($domdefaults{'auth_arg_def'} ne '')) { |
| |
$howpwd = $domdefaults{'auth_def'}; |
| |
$contentpwd = $domdefaults{'auth_arg_def'}; |
| |
} |
| |
} |
| |
} |
| |
if ($howpwd ne 'nouser') { |
| |
if($howpwd eq "internal") { # Encrypted is in local password file. |
| |
if (length($contentpwd) == 13) { |
| |
$validated = (crypt($password,$contentpwd) eq $contentpwd); |
| |
if ($validated) { |
| |
my %domdefaults = &Apache::lonnet::get_domain_defaults($domain); |
| |
if ($domdefaults{'intauth_switch'}) { |
| |
my $ncpass = &hash_passwd($domain,$password); |
| |
my $saveold; |
| |
if ($domdefaults{'intauth_switch'} == 2) { |
| |
$saveold = 1; |
| } |
} |
| } else { |
if (&rewrite_password_file($domain,$user,"$howpwd:$ncpass",$saveold)) { |
| print $client "rejected\n"; |
&update_passwd_history($user,$domain,$howpwd,'conversion'); |
| } |
&logthis("Validated password hashed with bcrypt for $user:$domain"); |
| # ----------------------------------------------------------------- unsubscribe |
|
| } elsif ($userinput =~ /^unsub/) { |
|
| my ($cmd,$fname)=split(/:/,$userinput); |
|
| if (-e $fname) { |
|
| if (unlink("$fname.$hostid{$clientip}")) { |
|
| print $client "ok\n"; |
|
| } else { |
|
| print $client "not_subscribed\n"; |
|
| } |
|
| } else { |
|
| print $client "not_found\n"; |
|
| } |
|
| # ------------------------------------------------------------------- subscribe |
|
| } elsif ($userinput =~ /^sub/) { |
|
| my ($cmd,$fname)=split(/:/,$userinput); |
|
| my $ownership=ishome($fname); |
|
| if ($ownership eq 'owner') { |
|
| if (-e $fname) { |
|
| if (-d $fname) { |
|
| print $client "directory\n"; |
|
| } else { |
|
| $now=time; |
|
| { |
|
| my $sh; |
|
| if ($sh= |
|
| IO::File->new(">$fname.$hostid{$clientip}")) { |
|
| print $sh "$clientip:$now\n"; |
|
| } |
|
| } |
|
| $fname=~s/\/home\/httpd\/html\/res/raw/; |
|
| $fname="http://$thisserver/".$fname; |
|
| print $client "$fname\n"; |
|
| } |
|
| } else { |
|
| print $client "not_found\n"; |
|
| } |
} |
| } else { |
} |
| print $client "rejected\n"; |
} |
| } |
|
| # ------------------------------------------------------------------------- log |
|
| } elsif ($userinput =~ /^log/) { |
|
| my ($cmd,$udom,$uname,$what)=split(/:/,$userinput); |
|
| chomp($what); |
|
| my $proname=propath($udom,$uname); |
|
| my $now=time; |
|
| { |
|
| my $hfh; |
|
| if ($hfh=IO::File->new(">>$proname/activity.log")) { |
|
| print $hfh "$now:$hostid{$clientip}:$what\n"; |
|
| print $client "ok\n"; |
|
| } else { |
|
| print $client "error:$!\n"; |
|
| } |
|
| } |
|
| # ------------------------------------------------------------------------- put |
|
| } elsif ($userinput =~ /^put/) { |
|
| my ($cmd,$udom,$uname,$namespace,$what) |
|
| =split(/:/,$userinput); |
|
| $namespace=~s/\//\_/g; |
|
| $namespace=~s/\W//g; |
|
| if ($namespace ne 'roles') { |
|
| chomp($what); |
|
| my $proname=propath($udom,$uname); |
|
| my $now=time; |
|
| { |
|
| my $hfh; |
|
| if ( |
|
| $hfh=IO::File->new(">>$proname/$namespace.hist") |
|
| ) { print $hfh "P:$now:$what\n"; } |
|
| } |
|
| my @pairs=split(/\&/,$what); |
|
| if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_WRCREAT,0640)) { |
|
| foreach $pair (@pairs) { |
|
| ($key,$value)=split(/=/,$pair); |
|
| $hash{$key}=$value; |
|
| } |
|
| if (untie(%hash)) { |
|
| print $client "ok\n"; |
|
| } else { |
|
| print $client "error:$!\n"; |
|
| } |
|
| } else { |
|
| print $client "error:$!\n"; |
|
| } |
|
| } else { |
|
| print $client "refused\n"; |
|
| } |
|
| # -------------------------------------------------------------------- rolesput |
|
| } elsif ($userinput =~ /^rolesput/) { |
|
| if ($wasenc==1) { |
|
| my ($cmd,$exedom,$exeuser,$udom,$uname,$what) |
|
| =split(/:/,$userinput); |
|
| my $namespace='roles'; |
|
| chomp($what); |
|
| my $proname=propath($udom,$uname); |
|
| my $now=time; |
|
| { |
|
| my $hfh; |
|
| if ( |
|
| $hfh=IO::File->new(">>$proname/$namespace.hist") |
|
| ) { |
|
| print $hfh "P:$now:$exedom:$exeuser:$what\n"; |
|
| } |
|
| } |
|
| my @pairs=split(/\&/,$what); |
|
| if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_WRCREAT,0640)) { |
|
| foreach $pair (@pairs) { |
|
| ($key,$value)=split(/=/,$pair); |
|
| $hash{$key}=$value; |
|
| } |
|
| if (untie(%hash)) { |
|
| print $client "ok\n"; |
|
| } else { |
|
| print $client "error:$!\n"; |
|
| } |
|
| } else { |
|
| print $client "error:$!\n"; |
|
| } |
|
| } else { |
|
| print $client "refused\n"; |
|
| } |
|
| # ------------------------------------------------------------------------- get |
|
| } elsif ($userinput =~ /^get/) { |
|
| my ($cmd,$udom,$uname,$namespace,$what) |
|
| =split(/:/,$userinput); |
|
| $namespace=~s/\//\_/g; |
|
| $namespace=~s/\W//g; |
|
| chomp($what); |
|
| my @queries=split(/\&/,$what); |
|
| my $proname=propath($udom,$uname); |
|
| my $qresult=''; |
|
| if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER,0640)) { |
|
| for ($i=0;$i<=$#queries;$i++) { |
|
| $qresult.="$hash{$queries[$i]}&"; |
|
| } |
|
| if (untie(%hash)) { |
|
| $qresult=~s/\&$//; |
|
| print $client "$qresult\n"; |
|
| } else { |
|
| print $client "error:$!\n"; |
|
| } |
|
| } else { |
|
| print $client "error:$!\n"; |
|
| } |
|
| # ------------------------------------------------------------------------ eget |
|
| } elsif ($userinput =~ /^eget/) { |
|
| my ($cmd,$udom,$uname,$namespace,$what) |
|
| =split(/:/,$userinput); |
|
| $namespace=~s/\//\_/g; |
|
| $namespace=~s/\W//g; |
|
| chomp($what); |
|
| my @queries=split(/\&/,$what); |
|
| my $proname=propath($udom,$uname); |
|
| my $qresult=''; |
|
| if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER,0640)) { |
|
| for ($i=0;$i<=$#queries;$i++) { |
|
| $qresult.="$hash{$queries[$i]}&"; |
|
| } |
|
| if (untie(%hash)) { |
|
| $qresult=~s/\&$//; |
|
| if ($cipher) { |
|
| my $cmdlength=length($qresult); |
|
| $qresult.=" "; |
|
| my $encqresult=''; |
|
| for |
|
| (my $encidx=0;$encidx<=$cmdlength;$encidx+=8) { |
|
| $encqresult.= |
|
| unpack("H16", |
|
| $cipher->encrypt(substr($qresult,$encidx,8))); |
|
| } |
|
| print $client "enc:$cmdlength:$encqresult\n"; |
|
| } else { |
|
| print $client "error:no_key\n"; |
|
| } |
|
| } else { |
|
| print $client "error:$!\n"; |
|
| } |
|
| } else { |
|
| print $client "error:$!\n"; |
|
| } |
|
| # ------------------------------------------------------------------------- del |
|
| } elsif ($userinput =~ /^del/) { |
|
| my ($cmd,$udom,$uname,$namespace,$what) |
|
| =split(/:/,$userinput); |
|
| $namespace=~s/\//\_/g; |
|
| $namespace=~s/\W//g; |
|
| chomp($what); |
|
| my $proname=propath($udom,$uname); |
|
| my $now=time; |
|
| { |
|
| my $hfh; |
|
| if ( |
|
| $hfh=IO::File->new(">>$proname/$namespace.hist") |
|
| ) { print $hfh "D:$now:$what\n"; } |
|
| } |
|
| my @keys=split(/\&/,$what); |
|
| if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_WRCREAT,0640)) { |
|
| foreach $key (@keys) { |
|
| delete($hash{$key}); |
|
| } |
|
| if (untie(%hash)) { |
|
| print $client "ok\n"; |
|
| } else { |
|
| print $client "error:$!\n"; |
|
| } |
|
| } else { |
|
| print $client "error:$!\n"; |
|
| } |
|
| # ------------------------------------------------------------------------ keys |
|
| } elsif ($userinput =~ /^keys/) { |
|
| my ($cmd,$udom,$uname,$namespace) |
|
| =split(/:/,$userinput); |
|
| $namespace=~s/\//\_/g; |
|
| $namespace=~s/\W//g; |
|
| my $proname=propath($udom,$uname); |
|
| my $qresult=''; |
|
| if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER,0640)) { |
|
| foreach $key (keys %hash) { |
|
| $qresult.="$key&"; |
|
| } |
|
| if (untie(%hash)) { |
|
| $qresult=~s/\&$//; |
|
| print $client "$qresult\n"; |
|
| } else { |
|
| print $client "error:$!\n"; |
|
| } |
|
| } else { |
|
| print $client "error:$!\n"; |
|
| } |
|
| # ------------------------------------------------------------------------ dump |
|
| } elsif ($userinput =~ /^dump/) { |
|
| my ($cmd,$udom,$uname,$namespace) |
|
| =split(/:/,$userinput); |
|
| $namespace=~s/\//\_/g; |
|
| $namespace=~s/\W//g; |
|
| my $proname=propath($udom,$uname); |
|
| my $qresult=''; |
|
| if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER,0640)) { |
|
| foreach $key (keys %hash) { |
|
| $qresult.="$key=$hash{$key}&"; |
|
| } |
|
| if (untie(%hash)) { |
|
| $qresult=~s/\&$//; |
|
| print $client "$qresult\n"; |
|
| } else { |
|
| print $client "error:$!\n"; |
|
| } |
|
| } else { |
|
| print $client "error:$!\n"; |
|
| } |
|
| # ----------------------------------------------------------------------- store |
|
| } elsif ($userinput =~ /^store/) { |
|
| my ($cmd,$udom,$uname,$namespace,$rid,$what) |
|
| =split(/:/,$userinput); |
|
| $namespace=~s/\//\_/g; |
|
| $namespace=~s/\W//g; |
|
| if ($namespace ne 'roles') { |
|
| chomp($what); |
|
| my $proname=propath($udom,$uname); |
|
| my $now=time; |
|
| { |
|
| my $hfh; |
|
| if ( |
|
| $hfh=IO::File->new(">>$proname/$namespace.hist") |
|
| ) { print $hfh "P:$now:$rid:$what\n"; } |
|
| } |
|
| my @pairs=split(/\&/,$what); |
|
| |
|
| if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_WRCREAT,0640)) { |
|
| my @previouskeys=split(/&/,$hash{"keys:$rid"}); |
|
| my $key; |
|
| $hash{"version:$rid"}++; |
|
| my $version=$hash{"version:$rid"}; |
|
| my $allkeys=''; |
|
| foreach $pair (@pairs) { |
|
| ($key,$value)=split(/=/,$pair); |
|
| $allkeys.=$key.':'; |
|
| $hash{"$version:$rid:$key"}=$value; |
|
| } |
|
| $allkeys=~s/:$//; |
|
| $hash{"$version:keys:$rid"}=$allkeys; |
|
| if (untie(%hash)) { |
|
| print $client "ok\n"; |
|
| } else { |
|
| print $client "error:$!\n"; |
|
| } |
|
| } else { |
|
| print $client "error:$!\n"; |
|
| } |
|
| } else { |
|
| print $client "refused\n"; |
|
| } |
|
| # --------------------------------------------------------------------- restore |
|
| } elsif ($userinput =~ /^restore/) { |
|
| my ($cmd,$udom,$uname,$namespace,$rid) |
|
| =split(/:/,$userinput); |
|
| $namespace=~s/\//\_/g; |
|
| $namespace=~s/\W//g; |
|
| chomp($rid); |
|
| my $proname=propath($udom,$uname); |
|
| my $qresult=''; |
|
| if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER,0640)) { |
|
| my $version=$hash{"version:$rid"}; |
|
| $qresult.="version=$version&"; |
|
| my $scope; |
|
| for ($scope=1;$scope<=$version;$scope++) { |
|
| my $vkeys=$hash{"$scope:keys:$rid"}; |
|
| my @keys=split(/:/,$vkeys); |
|
| my $key; |
|
| $qresult.="$scope:keys=$vkeys&"; |
|
| foreach $key (@keys) { |
|
| $qresult.="$scope:$key=".$hash{"$scope:$rid:$key"}."&"; |
|
| } |
|
| } |
|
| if (untie(%hash)) { |
|
| $qresult=~s/\&$//; |
|
| print $client "$qresult\n"; |
|
| } else { |
|
| print $client "error:$!\n"; |
|
| } |
|
| } else { |
|
| print $client "error:$!\n"; |
|
| } |
|
| # ------------------------------------------------------------------- querysend |
|
| } elsif ($userinput =~ /^querysend/) { |
|
| my ($cmd,$query)=split(/:/,$userinput); |
|
| $query=~s/\n*$//g; |
|
| print $client sqlreply("$hostid{$clientip}\&$query")."\n"; |
|
| # ------------------------------------------------------------------ queryreply |
|
| } elsif ($userinput =~ /^queryreply/) { |
|
| my ($cmd,$id,$reply)=split(/:/,$userinput); |
|
| my $store; |
|
| my $execdir=$perlvar{'lonDaemons'}; |
|
| if ($store=IO::File->new(">$execdir/tmp/$id")) { |
|
| print $store $reply; |
|
| close $store; |
|
| print $client "ok\n"; |
|
| } |
|
| else { |
|
| print $client "error:$!\n"; |
|
| } |
|
| # ----------------------------------------------------------------------- idput |
|
| } elsif ($userinput =~ /^idput/) { |
|
| my ($cmd,$udom,$what)=split(/:/,$userinput); |
|
| chomp($what); |
|
| $udom=~s/\W//g; |
|
| my $proname="$perlvar{'lonUsersDir'}/$udom/ids"; |
|
| my $now=time; |
|
| { |
|
| my $hfh; |
|
| if ( |
|
| $hfh=IO::File->new(">>$proname.hist") |
|
| ) { print $hfh "P:$now:$what\n"; } |
|
| } |
|
| my @pairs=split(/\&/,$what); |
|
| if (tie(%hash,'GDBM_File',"$proname.db",&GDBM_WRCREAT,0640)) { |
|
| foreach $pair (@pairs) { |
|
| ($key,$value)=split(/=/,$pair); |
|
| $hash{$key}=$value; |
|
| } |
|
| if (untie(%hash)) { |
|
| print $client "ok\n"; |
|
| } else { |
|
| print $client "error:$!\n"; |
|
| } |
|
| } else { |
|
| print $client "error:$!\n"; |
|
| } |
|
| # ----------------------------------------------------------------------- idget |
|
| } elsif ($userinput =~ /^idget/) { |
|
| my ($cmd,$udom,$what)=split(/:/,$userinput); |
|
| chomp($what); |
|
| $udom=~s/\W//g; |
|
| my $proname="$perlvar{'lonUsersDir'}/$udom/ids"; |
|
| my @queries=split(/\&/,$what); |
|
| my $qresult=''; |
|
| if (tie(%hash,'GDBM_File',"$proname.db",&GDBM_READER,0640)) { |
|
| for ($i=0;$i<=$#queries;$i++) { |
|
| $qresult.="$hash{$queries[$i]}&"; |
|
| } |
|
| if (untie(%hash)) { |
|
| $qresult=~s/\&$//; |
|
| print $client "$qresult\n"; |
|
| } else { |
|
| print $client "error:$!\n"; |
|
| } |
|
| } else { |
|
| print $client "error:$!\n"; |
|
| } |
|
| # ---------------------------------------------------------------------- tmpput |
|
| } elsif ($userinput =~ /^tmpput/) { |
|
| my ($cmd,$what)=split(/:/,$userinput); |
|
| my $store; |
|
| $tmpsnum++; |
|
| my $id=$$.'_'.$clientip.'_'.$tmpsnum; |
|
| $id=~s/\W/\_/g; |
|
| $what=~s/\n//g; |
|
| my $execdir=$perlvar{'lonDaemons'}; |
|
| if ($store=IO::File->new(">$execdir/tmp/$id.tmp")) { |
|
| print $store $what; |
|
| close $store; |
|
| print $client "$id\n"; |
|
| } |
|
| else { |
|
| print $client "error:$!\n"; |
|
| } |
|
| |
|
| # ---------------------------------------------------------------------- tmpget |
|
| } elsif ($userinput =~ /^tmpget/) { |
|
| my ($cmd,$id)=split(/:/,$userinput); |
|
| chomp($id); |
|
| $id=~s/\W/\_/g; |
|
| my $store; |
|
| my $execdir=$perlvar{'lonDaemons'}; |
|
| if ($store=IO::File->new("$execdir/tmp/$id.tmp")) { |
|
| my $reply=<$store>; |
|
| print $client "$reply\n"; |
|
| close $store; |
|
| } |
|
| else { |
|
| print $client "error:$!\n"; |
|
| } |
|
| |
|
| # -------------------------------------------------------------------------- ls |
|
| } elsif ($userinput =~ /^ls/) { |
|
| my ($cmd,$ulsdir)=split(/:/,$userinput); |
|
| my $ulsout=''; |
|
| my $ulsfn; |
|
| if (-e $ulsdir) { |
|
| while ($ulsfn=<$ulsdir/*>) { |
|
| my @ulsstats=stat($ulsfn); |
|
| $ulsout.=$ulsfn.'&'.join('&',@ulsstats).':'; |
|
| } |
|
| } else { |
|
| $ulsout='no_such_dir'; |
|
| } |
|
| if ($ulsout eq '') { $ulsout='empty'; } |
|
| print $client "$ulsout\n"; |
|
| # ------------------------------------------------------------- unknown command |
|
| } else { |
|
| # unknown command |
|
| print $client "unknown_cmd\n"; |
|
| } |
|
| # ------------------------------------------------------ client unknown, refuse |
|
| } |
|
| } else { |
} else { |
| print $client "refused\n"; |
$validated = &check_internal_passwd($password,$contentpwd,$domain,$user); |
| &logthis("<font color=blue>WARNING: " |
} |
| ."Rejected client $clientip, closing connection</font>"); |
} |
| } |
elsif ($howpwd eq "unix") { # User is a normal unix user. |
| &logthis("<font color=red>CRITICAL: " |
$contentpwd = (getpwnam($user))[1]; |
| ."Disconnect from $clientip ($hostid{$clientip})</font>"); |
if($contentpwd) { |
| # ============================================================================= |
if($contentpwd eq 'x') { # Shadow password file... |
| |
my $pwauth_path = "/usr/local/sbin/pwauth"; |
| |
open PWAUTH, "|$pwauth_path" or |
| |
die "Cannot invoke authentication"; |
| |
print PWAUTH "$user\n$password\n"; |
| |
close PWAUTH; |
| |
$validated = ! $?; |
| |
|
| |
} else { # Passwords in /etc/passwd. |
| |
$validated = (crypt($password, |
| |
$contentpwd) eq $contentpwd); |
| |
} |
| |
} else { |
| |
$validated = 0; |
| |
} |
| |
} elsif ($howpwd eq "krb4") { # user is in kerberos 4 auth. domain. |
| |
my $checkwithkrb5 = 0; |
| |
if ($dist =~/^fedora(\d+)$/) { |
| |
if ($1 > 11) { |
| |
$checkwithkrb5 = 1; |
| |
} |
| |
} elsif ($dist =~ /^suse([\d.]+)$/) { |
| |
if ($1 > 11.1) { |
| |
$checkwithkrb5 = 1; |
| |
} |
| |
} |
| |
if ($checkwithkrb5) { |
| |
$validated = &krb5_authen($password,$null,$user,$contentpwd); |
| |
} else { |
| |
$validated = &krb4_authen($password,$null,$user,$contentpwd); |
| |
} |
| |
} elsif ($howpwd eq "krb5") { # User is in kerberos 5 auth. domain. |
| |
$validated = &krb5_authen($password,$null,$user,$contentpwd); |
| |
} elsif ($howpwd eq "localauth") { |
| |
# Authenticate via installation specific authentcation method: |
| |
$validated = &localauth::localauth($user, |
| |
$password, |
| |
$contentpwd, |
| |
$domain); |
| |
if ($validated < 0) { |
| |
&logthis("localauth for $contentpwd $user:$domain returned a $validated"); |
| |
$validated = 0; |
| |
} |
| |
} else { # Unrecognized auth is also bad. |
| |
$validated = 0; |
| |
} |
| |
} else { |
| |
$validated = 0; |
| |
} |
| |
# |
| |
# $validated has the correct stat of the authentication: |
| |
# |
| |
|
| |
unless ($validated != -3.14159) { |
| |
# I >really really< want to know if this happens. |
| |
# since it indicates that user authentication is badly |
| |
# broken in some code path. |
| |
# |
| |
die "ValidateUser - failed to set the value of validated $domain, $user $password"; |
| |
} |
| |
return $validated; |
| |
} |
| |
|
| |
sub check_internal_passwd { |
| |
my ($plainpass,$stored,$domain,$user) = @_; |
| |
my (undef,$method,@rest) = split(/!/,$stored); |
| |
if ($method eq 'bcrypt') { |
| |
my $result = &hash_passwd($domain,$plainpass,@rest); |
| |
if ($result ne $stored) { |
| |
return 0; |
| } |
} |
| |
my %domdefaults = &Apache::lonnet::get_domain_defaults($domain); |
| |
if ($domdefaults{'intauth_check'}) { |
| |
# Upgrade to a larger number of rounds if necessary |
| |
my $defaultcost = $domdefaults{'intauth_cost'}; |
| |
if (($defaultcost eq '') || ($defaultcost =~ /D/)) { |
| |
$defaultcost = 10; |
| |
} |
| |
if (int($rest[0])<int($defaultcost)) { |
| |
if ($domdefaults{'intauth_check'} == 1) { |
| |
my $ncpass = &hash_passwd($domain,$plainpass); |
| |
if (&rewrite_password_file($domain,$user,"internal:$ncpass")) { |
| |
&update_passwd_history($user,$domain,'internal','update cost'); |
| |
&logthis("Validated password hashed with bcrypt for $user:$domain"); |
| |
} |
| |
return 1; |
| |
} elsif ($domdefaults{'intauth_check'} == 2) { |
| |
return 0; |
| |
} |
| |
} |
| |
} else { |
| |
return 1; |
| |
} |
| |
} |
| |
return 0; |
| |
} |
| |
|
| |
sub get_last_authchg { |
| |
my ($domain,$user) = @_; |
| |
my $lastmod; |
| |
my $logname = &propath($domain,$user).'/passwd.log'; |
| |
if (-e "$logname") { |
| |
$lastmod = (stat("$logname"))[9]; |
| |
} |
| |
return $lastmod; |
| |
} |
| |
|
| |
sub krb4_authen { |
| |
my ($password,$null,$user,$contentpwd) = @_; |
| |
my $validated = 0; |
| |
if (!($password =~ /$null/) ) { # Null password not allowed. |
| |
eval { |
| |
require Authen::Krb4; |
| |
}; |
| |
if (!$@) { |
| |
my $k4error = &Authen::Krb4::get_pw_in_tkt($user, |
| |
"", |
| |
$contentpwd,, |
| |
'krbtgt', |
| |
$contentpwd, |
| |
1, |
| |
$password); |
| |
if(!$k4error) { |
| |
$validated = 1; |
| |
} else { |
| |
$validated = 0; |
| |
&logthis('krb4: '.$user.', '.$contentpwd.', '. |
| |
&Authen::Krb4::get_err_txt($Authen::Krb4::error)); |
| |
} |
| |
} else { |
| |
$validated = krb5_authen($password,$null,$user,$contentpwd); |
| |
} |
| |
} |
| |
return $validated; |
| |
} |
| |
|
| |
sub krb5_authen { |
| |
my ($password,$null,$user,$contentpwd) = @_; |
| |
my $validated = 0; |
| |
if(!($password =~ /$null/)) { # Null password not allowed. |
| |
my $krbclient = &Authen::Krb5::parse_name($user.'@' |
| |
.$contentpwd); |
| |
my $krbservice = "krbtgt/".$contentpwd."\@".$contentpwd; |
| |
my $krbserver = &Authen::Krb5::parse_name($krbservice); |
| |
my $credentials= &Authen::Krb5::cc_default(); |
| |
$credentials->initialize(&Authen::Krb5::parse_name($user.'@' |
| |
.$contentpwd)); |
| |
my $krbreturn; |
| |
if (exists(&Authen::Krb5::get_init_creds_password)) { |
| |
$krbreturn = |
| |
&Authen::Krb5::get_init_creds_password($krbclient,$password, |
| |
$krbservice); |
| |
$validated = (ref($krbreturn) eq 'Authen::Krb5::Creds'); |
| |
} else { |
| |
$krbreturn = |
| |
&Authen::Krb5::get_in_tkt_with_password($krbclient,$krbserver, |
| |
$password,$credentials); |
| |
$validated = ($krbreturn == 1); |
| |
} |
| |
if (!$validated) { |
| |
&logthis('krb5: '.$user.', '.$contentpwd.', '. |
| |
&Authen::Krb5::error()); |
| |
} |
| |
} |
| |
return $validated; |
| |
} |
| |
|
| |
sub addline { |
| |
my ($fname,$hostid,$ip,$newline)=@_; |
| |
my $contents; |
| |
my $found=0; |
| |
my $expr='^'.quotemeta($hostid).':'.quotemeta($ip).':'; |
| |
my $sh; |
| |
if ($sh=IO::File->new("$fname.subscription")) { |
| |
while (my $subline=<$sh>) { |
| |
if ($subline !~ /$expr/) {$contents.= $subline;} else {$found=1;} |
| |
} |
| |
$sh->close(); |
| |
} |
| |
$sh=IO::File->new(">$fname.subscription"); |
| |
if ($contents) { print $sh $contents; } |
| |
if ($newline) { print $sh $newline; } |
| |
$sh->close(); |
| |
return $found; |
| |
} |
| |
|
| |
sub get_chat { |
| |
my ($cdom,$cname,$udom,$uname,$group)=@_; |
| |
|
| |
my @entries=(); |
| |
my $namespace = 'nohist_chatroom'; |
| |
my $namespace_inroom = 'nohist_inchatroom'; |
| |
if ($group ne '') { |
| |
$namespace .= '_'.$group; |
| |
$namespace_inroom .= '_'.$group; |
| |
} |
| |
my $hashref = &tie_user_hash($cdom, $cname, $namespace, |
| |
&GDBM_READER()); |
| |
if ($hashref) { |
| |
@entries=map { $_.':'.$hashref->{$_} } sort(keys(%$hashref)); |
| |
&untie_user_hash($hashref); |
| |
} |
| |
my @participants=(); |
| |
my $cutoff=time-60; |
| |
$hashref = &tie_user_hash($cdom, $cname, $namespace_inroom, |
| |
&GDBM_WRCREAT()); |
| |
if ($hashref) { |
| |
$hashref->{$uname.':'.$udom}=time; |
| |
foreach my $user (sort(keys(%$hashref))) { |
| |
if ($hashref->{$user}>$cutoff) { |
| |
push(@participants, 'active_participant:'.$user); |
| |
} |
| |
} |
| |
&untie_user_hash($hashref); |
| |
} |
| |
return (@participants,@entries); |
| |
} |
| |
|
| |
sub chat_add { |
| |
my ($cdom,$cname,$newchat,$group)=@_; |
| |
my @entries=(); |
| |
my $time=time; |
| |
my $namespace = 'nohist_chatroom'; |
| |
my $logfile = 'chatroom.log'; |
| |
if ($group ne '') { |
| |
$namespace .= '_'.$group; |
| |
$logfile = 'chatroom_'.$group.'.log'; |
| |
} |
| |
my $hashref = &tie_user_hash($cdom, $cname, $namespace, |
| |
&GDBM_WRCREAT()); |
| |
if ($hashref) { |
| |
@entries=map { $_.':'.$hashref->{$_} } sort(keys(%$hashref)); |
| |
my ($lastid)=($entries[$#entries]=~/^(\w+)\:/); |
| |
my ($thentime,$idnum)=split(/\_/,$lastid); |
| |
my $newid=$time.'_000000'; |
| |
if ($thentime==$time) { |
| |
$idnum=~s/^0+//; |
| |
$idnum++; |
| |
$idnum=substr('000000'.$idnum,-6,6); |
| |
$newid=$time.'_'.$idnum; |
| |
} |
| |
$hashref->{$newid}=$newchat; |
| |
my $expired=$time-3600; |
| |
foreach my $comment (keys(%$hashref)) { |
| |
my ($thistime) = ($comment=~/(\d+)\_/); |
| |
if ($thistime<$expired) { |
| |
delete $hashref->{$comment}; |
| |
} |
| |
} |
| |
{ |
| |
my $proname=&propath($cdom,$cname); |
| |
if (open(CHATLOG,">>$proname/$logfile")) { |
| |
print CHATLOG ("$time:".&unescape($newchat)."\n"); |
| |
} |
| |
close(CHATLOG); |
| |
} |
| |
&untie_user_hash($hashref); |
| |
} |
| |
} |
| |
|
| |
sub unsub { |
| |
my ($fname,$clientip)=@_; |
| |
my $result; |
| |
my $unsubs = 0; # Number of successful unsubscribes: |
| |
|
| |
|
| |
# An old way subscriptions were handled was to have a |
| |
# subscription marker file: |
| |
|
| |
Debug("Attempting unlink of $fname.$clientname"); |
| |
if (unlink("$fname.$clientname")) { |
| |
$unsubs++; # Successful unsub via marker file. |
| |
} |
| |
|
| |
# The more modern way to do it is to have a subscription list |
| |
# file: |
| |
|
| |
if (-e "$fname.subscription") { |
| |
my $found=&addline($fname,$clientname,$clientip,''); |
| |
if ($found) { |
| |
$unsubs++; |
| |
} |
| |
} |
| |
|
| |
# If either or both of these mechanisms succeeded in unsubscribing a |
| |
# resource we can return ok: |
| |
|
| |
if($unsubs) { |
| |
$result = "ok\n"; |
| |
} else { |
| |
$result = "not_subscribed\n"; |
| |
} |
| |
|
| |
return $result; |
| |
} |
| |
|
| |
sub currentversion { |
| |
my $fname=shift; |
| |
my $version=-1; |
| |
my $ulsdir=''; |
| |
if ($fname=~/^(.+)\/[^\/]+$/) { |
| |
$ulsdir=$1; |
| |
} |
| |
my ($fnamere1,$fnamere2); |
| |
# remove version if already specified |
| |
$fname=~s/\.\d+\.(\w+(?:\.meta)*)$/\.$1/; |
| |
# get the bits that go before and after the version number |
| |
if ( $fname=~/^(.*\.)(\w+(?:\.meta)*)$/ ) { |
| |
$fnamere1=$1; |
| |
$fnamere2='.'.$2; |
| |
} |
| |
if (-e $fname) { $version=1; } |
| |
if (-e $ulsdir) { |
| |
if(-d $ulsdir) { |
| |
if (opendir(LSDIR,$ulsdir)) { |
| |
my $ulsfn; |
| |
while ($ulsfn=readdir(LSDIR)) { |
| |
# see if this is a regular file (ignore links produced earlier) |
| |
my $thisfile=$ulsdir.'/'.$ulsfn; |
| |
unless (-l $thisfile) { |
| |
if ($thisfile=~/\Q$fnamere1\E(\d+)\Q$fnamere2\E$/) { |
| |
if ($1>$version) { $version=$1; } |
| |
} |
| |
} |
| |
} |
| |
closedir(LSDIR); |
| |
$version++; |
| |
} |
| |
} |
| |
} |
| |
return $version; |
| |
} |
| |
|
| |
sub thisversion { |
| |
my $fname=shift; |
| |
my $version=-1; |
| |
if ($fname=~/\.(\d+)\.\w+(?:\.meta)*$/) { |
| |
$version=$1; |
| |
} |
| |
return $version; |
| |
} |
| |
|
| |
sub subscribe { |
| |
my ($userinput,$clientip)=@_; |
| |
my $result; |
| |
my ($cmd,$fname)=split(/:/,$userinput,2); |
| |
my $ownership=&ishome($fname); |
| |
if ($ownership eq 'owner') { |
| |
# explitly asking for the current version? |
| |
unless (-e $fname) { |
| |
my $currentversion=¤tversion($fname); |
| |
if (&thisversion($fname)==$currentversion) { |
| |
if ($fname=~/^(.+)\.\d+\.(\w+(?:\.meta)*)$/) { |
| |
my $root=$1; |
| |
my $extension=$2; |
| |
symlink($root.'.'.$extension, |
| |
$root.'.'.$currentversion.'.'.$extension); |
| |
unless ($extension=~/\.meta$/) { |
| |
symlink($root.'.'.$extension.'.meta', |
| |
$root.'.'.$currentversion.'.'.$extension.'.meta'); |
| |
} |
| |
} |
| |
} |
| |
} |
| |
if (-e $fname) { |
| |
if (-d $fname) { |
| |
$result="directory\n"; |
| |
} else { |
| |
if (-e "$fname.$clientname") {&unsub($fname,$clientip);} |
| |
my $now=time; |
| |
my $found=&addline($fname,$clientname,$clientip, |
| |
"$clientname:$clientip:$now\n"); |
| |
if ($found) { $result="$fname\n"; } |
| |
# if they were subscribed to only meta data, delete that |
| |
# subscription, when you subscribe to a file you also get |
| |
# the metadata |
| |
unless ($fname=~/\.meta$/) { &unsub("$fname.meta",$clientip); } |
| |
$fname=~s/\/home\/httpd\/html\/res/raw/; |
| |
my $protocol = $Apache::lonnet::protocol{$perlvar{'lonHostID'}}; |
| |
$protocol = 'http' if ($protocol ne 'https'); |
| |
$fname=$protocol.'://'.&Apache::lonnet::hostname($perlvar{'lonHostID'})."/".$fname; |
| |
$result="$fname\n"; |
| |
} |
| |
} else { |
| |
$result="not_found\n"; |
| |
} |
| |
} else { |
| |
$result="rejected\n"; |
| |
} |
| |
return $result; |
| |
} |
| |
# Change the passwd of a unix user. The caller must have |
| |
# first verified that the user is a loncapa user. |
| |
# |
| |
# Parameters: |
| |
# user - Unix user name to change. |
| |
# pass - New password for the user. |
| |
# Returns: |
| |
# ok - if success |
| |
# other - Some meaningfule error message string. |
| |
# NOTE: |
| |
# invokes a setuid script to change the passwd. |
| |
sub change_unix_password { |
| |
my ($user, $pass) = @_; |
| |
|
| |
&Debug("change_unix_password"); |
| |
my $execdir=$perlvar{'lonDaemons'}; |
| |
&Debug("Opening lcpasswd pipeline"); |
| |
my $pf = IO::File->new("|$execdir/lcpasswd > " |
| |
."$perlvar{'lonDaemons'}" |
| |
."/logs/lcpasswd.log"); |
| |
print $pf "$user\n$pass\n$pass\n"; |
| |
close $pf; |
| |
my $err = $?; |
| |
return ($err < @passwderrors) ? $passwderrors[$err] : |
| |
"pwchange_falure - unknown error"; |
| |
|
| |
|
| # tidy up gracefully and finish |
} |
| |
|
| # this exit is VERY important, otherwise the child will become |
|
| # a producer of more and more children, forking yourself into |
sub make_passwd_file { |
| # process death. |
my ($uname,$udom,$umode,$npass,$passfilename,$action)=@_; |
| exit; |
my $result="ok"; |
| |
if ($umode eq 'krb4' or $umode eq 'krb5') { |
| |
{ |
| |
my $pf = IO::File->new(">$passfilename"); |
| |
if ($pf) { |
| |
print $pf "$umode:$npass\n"; |
| |
&update_passwd_history($uname,$udom,$umode,$action); |
| |
} else { |
| |
$result = "pass_file_failed_error"; |
| |
} |
| |
} |
| |
} elsif ($umode eq 'internal') { |
| |
my $ncpass = &hash_passwd($udom,$npass); |
| |
{ |
| |
&Debug("Creating internal auth"); |
| |
my $pf = IO::File->new(">$passfilename"); |
| |
if($pf) { |
| |
print $pf "internal:$ncpass\n"; |
| |
&update_passwd_history($uname,$udom,$umode,$action); |
| |
} else { |
| |
$result = "pass_file_failed_error"; |
| |
} |
| |
} |
| |
} elsif ($umode eq 'localauth') { |
| |
{ |
| |
my $pf = IO::File->new(">$passfilename"); |
| |
if($pf) { |
| |
print $pf "localauth:$npass\n"; |
| |
&update_passwd_history($uname,$udom,$umode,$action); |
| |
} else { |
| |
$result = "pass_file_failed_error"; |
| |
} |
| |
} |
| |
} elsif ($umode eq 'unix') { |
| |
&logthis(">>>Attempt to create unix account blocked -- unix auth not available for new users."); |
| |
$result="no_new_unix_accounts"; |
| |
} elsif ($umode eq 'none') { |
| |
{ |
| |
my $pf = IO::File->new("> $passfilename"); |
| |
if($pf) { |
| |
print $pf "none:\n"; |
| |
} else { |
| |
$result = "pass_file_failed_error"; |
| |
} |
| |
} |
| |
} else { |
| |
$result="auth_mode_error"; |
| |
} |
| |
return $result; |
| |
} |
| |
|
| |
sub convert_photo { |
| |
my ($start,$dest)=@_; |
| |
system("convert $start $dest"); |
| |
} |
| |
|
| |
sub sethost { |
| |
my ($remotereq) = @_; |
| |
my (undef,$hostid)=split(/:/,$remotereq); |
| |
# ignore sethost if we are already correct |
| |
if ($hostid eq $currenthostid) { |
| |
return 'ok'; |
| |
} |
| |
|
| |
if (!defined($hostid)) { $hostid=$perlvar{'lonHostID'}; } |
| |
if (&Apache::lonnet::get_host_ip($perlvar{'lonHostID'}) |
| |
eq &Apache::lonnet::get_host_ip($hostid)) { |
| |
$currenthostid =$hostid; |
| |
$currentdomainid=&Apache::lonnet::host_domain($hostid); |
| |
# &logthis("Setting hostid to $hostid, and domain to $currentdomainid"); |
| |
} else { |
| |
&logthis("Requested host id $hostid not an alias of ". |
| |
$perlvar{'lonHostID'}." refusing connection"); |
| |
return 'unable_to_set'; |
| } |
} |
| |
return 'ok'; |
| |
} |
| |
|
| |
sub version { |
| |
my ($userinput)=@_; |
| |
$remoteVERSION=(split(/:/,$userinput))[1]; |
| |
return "version:$VERSION"; |
| |
} |
| |
|
| |
sub get_usersession_config { |
| |
my ($dom,$name) = @_; |
| |
my ($usersessionconf,$cached)=&Apache::lonnet::is_cached_new($name,$dom); |
| |
if (defined($cached)) { |
| |
return $usersessionconf; |
| |
} else { |
| |
my %domconfig = &Apache::lonnet::get_dom('configuration',['usersessions'],$dom); |
| |
if (ref($domconfig{'usersessions'}) eq 'HASH') { |
| |
&Apache::lonnet::do_cache_new($name,$dom,$domconfig{'usersessions'},3600); |
| |
return $domconfig{'usersessions'}; |
| |
} |
| |
} |
| |
return; |
| |
} |
| |
|
| |
sub get_usersearch_config { |
| |
my ($dom,$name) = @_; |
| |
my ($usersearchconf,$cached)=&Apache::lonnet::is_cached_new($name,$dom); |
| |
if (defined($cached)) { |
| |
return $usersearchconf; |
| |
} else { |
| |
my %domconfig = &Apache::lonnet::get_dom('configuration',['directorysrch'],$dom); |
| |
&Apache::lonnet::do_cache_new($name,$dom,$domconfig{'directorysrch'},3600); |
| |
return $domconfig{'directorysrch'}; |
| |
} |
| |
return; |
| |
} |
| |
|
| |
sub distro_and_arch { |
| |
return $dist.':'.$arch; |
| } |
} |
| |
|
| |
# ----------------------------------- POD (plain old documentation, CPAN style) |
| |
|
| |
=head1 NAME |
| |
|
| |
lond - "LON Daemon" Server (port "LOND" 5663) |
| |
|
| |
=head1 SYNOPSIS |
| |
|
| |
Usage: B<lond> |
| |
|
| |
Should only be run as user=www. This is a command-line script which |
| |
is invoked by B<loncron>. There is no expectation that a typical user |
| |
will manually start B<lond> from the command-line. (In other words, |
| |
DO NOT START B<lond> YOURSELF.) |
| |
|
| |
=head1 DESCRIPTION |
| |
|
| |
There are two characteristics associated with the running of B<lond>, |
| |
PROCESS MANAGEMENT (starting, stopping, handling child processes) |
| |
and SERVER-SIDE ACTIVITIES (password authentication, user creation, |
| |
subscriptions, etc). These are described in two large |
| |
sections below. |
| |
|
| |
B<PROCESS MANAGEMENT> |
| |
|
| |
Preforker - server who forks first. Runs as a daemon. HUPs. |
| |
Uses IDEA encryption |
| |
|
| |
B<lond> forks off children processes that correspond to the other servers |
| |
in the network. Management of these processes can be done at the |
| |
parent process level or the child process level. |
| |
|
| |
B<logs/lond.log> is the location of log messages. |
| |
|
| |
The process management is now explained in terms of linux shell commands, |
| |
subroutines internal to this code, and signal assignments: |
| |
|
| |
=over 4 |
| |
|
| |
=item * |
| |
|
| |
PID is stored in B<logs/lond.pid> |
| |
|
| |
This is the process id number of the parent B<lond> process. |
| |
|
| |
=item * |
| |
|
| |
SIGTERM and SIGINT |
| |
|
| |
Parent signal assignment: |
| |
$SIG{INT} = $SIG{TERM} = \&HUNTSMAN; |
| |
|
| |
Child signal assignment: |
| |
$SIG{INT} = 'DEFAULT'; (and SIGTERM is DEFAULT also) |
| |
(The child dies and a SIGALRM is sent to parent, awaking parent from slumber |
| |
to restart a new child.) |
| |
|
| |
Command-line invocations: |
| |
B<kill> B<-s> SIGTERM I<PID> |
| |
B<kill> B<-s> SIGINT I<PID> |
| |
|
| |
Subroutine B<HUNTSMAN>: |
| |
This is only invoked for the B<lond> parent I<PID>. |
| |
This kills all the children, and then the parent. |
| |
The B<lonc.pid> file is cleared. |
| |
|
| |
=item * |
| |
|
| |
SIGHUP |
| |
|
| |
Current bug: |
| |
This signal can only be processed the first time |
| |
on the parent process. Subsequent SIGHUP signals |
| |
have no effect. |
| |
|
| |
Parent signal assignment: |
| |
$SIG{HUP} = \&HUPSMAN; |
| |
|
| |
Child signal assignment: |
| |
none (nothing happens) |
| |
|
| |
Command-line invocations: |
| |
B<kill> B<-s> SIGHUP I<PID> |
| |
|
| |
Subroutine B<HUPSMAN>: |
| |
This is only invoked for the B<lond> parent I<PID>, |
| |
This kills all the children, and then the parent. |
| |
The B<lond.pid> file is cleared. |
| |
|
| |
=item * |
| |
|
| |
SIGUSR1 |
| |
|
| |
Parent signal assignment: |
| |
$SIG{USR1} = \&USRMAN; |
| |
|
| |
Child signal assignment: |
| |
$SIG{USR1}= \&logstatus; |
| |
|
| |
Command-line invocations: |
| |
B<kill> B<-s> SIGUSR1 I<PID> |
| |
|
| |
Subroutine B<USRMAN>: |
| |
When invoked for the B<lond> parent I<PID>, |
| |
SIGUSR1 is sent to all the children, and the status of |
| |
each connection is logged. |
| |
|
| |
=item * |
| |
|
| |
SIGUSR2 |
| |
|
| |
Parent Signal assignment: |
| |
$SIG{USR2} = \&UpdateHosts |
| |
|
| |
Child signal assignment: |
| |
NONE |
| |
|
| |
|
| |
=item * |
| |
|
| |
SIGCHLD |
| |
|
| |
Parent signal assignment: |
| |
$SIG{CHLD} = \&REAPER; |
| |
|
| |
Child signal assignment: |
| |
none |
| |
|
| |
Command-line invocations: |
| |
B<kill> B<-s> SIGCHLD I<PID> |
| |
|
| |
Subroutine B<REAPER>: |
| |
This is only invoked for the B<lond> parent I<PID>. |
| |
Information pertaining to the child is removed. |
| |
The socket port is cleaned up. |
| |
|
| |
=back |
| |
|
| |
B<SERVER-SIDE ACTIVITIES> |
| |
|
| |
Server-side information can be accepted in an encrypted or non-encrypted |
| |
method. |
| |
|
| |
=over 4 |
| |
|
| |
=item ping |
| |
|
| |
Query a client in the hosts.tab table; "Are you there?" |
| |
|
| |
=item pong |
| |
|
| |
Respond to a ping query. |
| |
|
| |
=item ekey |
| |
|
| |
Read in encrypted key, make cipher. Respond with a buildkey. |
| |
|
| |
=item load |
| |
|
| |
Respond with CPU load based on a computation upon /proc/loadavg. |
| |
|
| |
=item currentauth |
| |
|
| |
Reply with current authentication information (only over an |
| |
encrypted channel). |
| |
|
| |
=item auth |
| |
|
| |
Only over an encrypted channel, reply as to whether a user's |
| |
authentication information can be validated. |
| |
|
| |
=item passwd |
| |
|
| |
Allow for a password to be set. |
| |
|
| |
=item makeuser |
| |
|
| |
Make a user. |
| |
|
| |
=item passwd |
| |
|
| |
Allow for authentication mechanism and password to be changed. |
| |
|
| |
=item home |
| |
|
| |
Respond to a question "are you the home for a given user?" |
| |
|
| |
=item update |
| |
|
| |
Update contents of a subscribed resource. |
| |
|
| |
=item unsubscribe |
| |
|
| |
The server is unsubscribing from a resource. |
| |
|
| |
=item subscribe |
| |
|
| |
The server is subscribing to a resource. |
| |
|
| |
=item log |
| |
|
| |
Place in B<logs/lond.log> |
| |
|
| |
=item put |
| |
|
| |
stores hash in namespace |
| |
|
| |
=item rolesput |
| |
|
| |
put a role into a user's environment |
| |
|
| |
=item get |
| |
|
| |
returns hash with keys from array |
| |
reference filled in from namespace |
| |
|
| |
=item eget |
| |
|
| |
returns hash with keys from array |
| |
reference filled in from namesp (encrypts the return communication) |
| |
|
| |
=item rolesget |
| |
|
| |
get a role from a user's environment |
| |
|
| |
=item del |
| |
|
| |
deletes keys out of array from namespace |
| |
|
| |
=item keys |
| |
|
| |
returns namespace keys |
| |
|
| |
=item dump |
| |
|
| |
dumps the complete (or key matching regexp) namespace into a hash |
| |
|
| |
=item store |
| |
|
| |
stores hash permanently |
| |
for this url; hashref needs to be given and should be a \%hashname; the |
| |
remaining args aren't required and if they aren't passed or are '' they will |
| |
be derived from the ENV |
| |
|
| |
=item restore |
| |
|
| |
returns a hash for a given url |
| |
|
| |
=item querysend |
| |
|
| |
Tells client about the lonsql process that has been launched in response |
| |
to a sent query. |
| |
|
| |
=item queryreply |
| |
|
| |
Accept information from lonsql and make appropriate storage in temporary |
| |
file space. |
| |
|
| |
=item idput |
| |
|
| |
Defines usernames as corresponding to IDs. (These "IDs" are unique identifiers |
| |
for each student, defined perhaps by the institutional Registrar.) |
| |
|
| |
=item idget |
| |
|
| |
Returns usernames corresponding to IDs. (These "IDs" are unique identifiers |
| |
for each student, defined perhaps by the institutional Registrar.) |
| |
|
| |
=item tmpput |
| |
|
| |
Accept and store information in temporary space. |
| |
|
| |
=item tmpget |
| |
|
| |
Send along temporarily stored information. |
| |
|
| |
=item ls |
| |
|
| |
List part of a user's directory. |
| |
|
| |
=item pushtable |
| |
|
| |
Pushes a file in /home/httpd/lonTab directory. Currently limited to: |
| |
hosts.tab and domain.tab. The old file is copied to *.tab.backup but |
| |
must be restored manually in case of a problem with the new table file. |
| |
pushtable requires that the request be encrypted and validated via |
| |
ValidateManager. The form of the command is: |
| |
enc:pushtable tablename <tablecontents> \n |
| |
where pushtable, tablename and <tablecontents> will be encrypted, but \n is a |
| |
cleartext newline. |
| |
|
| |
=item Hanging up (exit or init) |
| |
|
| |
What to do when a client tells the server that they (the client) |
| |
are leaving the network. |
| |
|
| |
=item unknown command |
| |
|
| |
If B<lond> is sent an unknown command (not in the list above), |
| |
it replys to the client "unknown_cmd". |
| |
|
| |
|
| |
=item UNKNOWN CLIENT |
| |
|
| |
If the anti-spoofing algorithm cannot verify the client, |
| |
the client is rejected (with a "refused" message sent |
| |
to the client, and the connection is closed. |
| |
|
| |
=back |
| |
|
| |
=head1 PREREQUISITES |
| |
|
| |
IO::Socket |
| |
IO::File |
| |
Apache::File |
| |
POSIX |
| |
Crypt::IDEA |
| |
LWP::UserAgent() |
| |
GDBM_File |
| |
Authen::Krb4 |
| |
Authen::Krb5 |
| |
|
| |
=head1 COREQUISITES |
| |
|
| |
=head1 OSNAMES |
| |
|
| |
linux |
| |
|
| |
=head1 SCRIPT CATEGORIES |
| |
|
| |
Server/Process |
| |
|
| |
=cut |
| |
|
| |
|
| |
=pod |
| |
|
| |
=head1 LOG MESSAGES |
| |
|
| |
The messages below can be emitted in the lond log. This log is located |
| |
in ~httpd/perl/logs/lond.log Many log messages have HTML encapsulation |
| |
to provide coloring if examined from inside a web page. Some do not. |
| |
Where color is used, the colors are; Red for sometihhng to get excited |
| |
about and to follow up on. Yellow for something to keep an eye on to |
| |
be sure it does not get worse, Green,and Blue for informational items. |
| |
|
| |
In the discussions below, sometimes reference is made to ~httpd |
| |
when describing file locations. There isn't really an httpd |
| |
user, however there is an httpd directory that gets installed in the |
| |
place that user home directories go. On linux, this is usually |
| |
(always?) /home/httpd. |
| |
|
| |
|
| |
Some messages are colorless. These are usually (not always) |
| |
Green/Blue color level messages. |
| |
|
| |
=over 2 |
| |
|
| |
=item (Red) LocalConnection rejecting non local: <ip> ne 127.0.0.1 |
| |
|
| |
A local connection negotiation was attempted by |
| |
a host whose IP address was not 127.0.0.1. |
| |
The socket is closed and the child will exit. |
| |
lond has three ways to establish an encyrption |
| |
key with a client: |
| |
|
| |
=over 2 |
| |
|
| |
=item local |
| |
|
| |
The key is written and read from a file. |
| |
This is only valid for connections from localhost. |
| |
|
| |
=item insecure |
| |
|
| |
The key is generated by the server and |
| |
transmitted to the client. |
| |
|
| |
=item ssl (secure) |
| |
|
| |
An ssl connection is negotiated with the client, |
| |
the key is generated by the server and sent to the |
| |
client across this ssl connection before the |
| |
ssl connectionis terminated and clear text |
| |
transmission resumes. |
| |
|
| |
=back |
| |
|
| |
=item (Red) LocalConnection: caller is insane! init = <init> and type = <type> |
| |
|
| |
The client is local but has not sent an initialization |
| |
string that is the literal "init:local" The connection |
| |
is closed and the child exits. |
| |
|
| |
=item Red CRITICAL Can't get key file <error> |
| |
|
| |
SSL key negotiation is being attempted but the call to |
| |
lonssl::KeyFile failed. This usually means that the |
| |
configuration file is not correctly defining or protecting |
| |
the directories/files lonCertificateDirectory or |
| |
lonnetPrivateKey |
| |
<error> is a string that describes the reason that |
| |
the key file could not be located. |
| |
|
| |
=item (Red) CRITICAL Can't get certificates <error> |
| |
|
| |
SSL key negotiation failed because we were not able to retrives our certificate |
| |
or the CA's certificate in the call to lonssl::CertificateFile |
| |
<error> is the textual reason this failed. Usual reasons: |
| |
|
| |
=over 2 |
| |
|
| |
=item Apache config file for loncapa incorrect: |
| |
|
| |
one of the variables |
| |
lonCertificateDirectory, lonnetCertificateAuthority, or lonnetCertificate |
| |
undefined or incorrect |
| |
|
| |
=item Permission error: |
| |
|
| |
The directory pointed to by lonCertificateDirectory is not readable by lond |
| |
|
| |
=item Permission error: |
| |
|
| |
Files in the directory pointed to by lonCertificateDirectory are not readable by lond. |
| |
|
| |
=item Installation error: |
| |
|
| |
Either the certificate authority file or the certificate have not |
| |
been installed in lonCertificateDirectory. |
| |
|
| |
=item (Red) CRITICAL SSL Socket promotion failed: <err> |
| |
|
| |
The promotion of the connection from plaintext to SSL failed |
| |
<err> is the reason for the failure. There are two |
| |
system calls involved in the promotion (one of which failed), |
| |
a dup to produce |
| |
a second fd on the raw socket over which the encrypted data |
| |
will flow and IO::SOcket::SSL->new_from_fd which creates |
| |
the SSL connection on the duped fd. |
| |
|
| |
=item (Blue) WARNING client did not respond to challenge |
| |
|
| |
This occurs on an insecure (non SSL) connection negotiation request. |
| |
lond generates some number from the time, the PID and sends it to |
| |
the client. The client must respond by echoing this information back. |
| |
If the client does not do so, that's a violation of the challenge |
| |
protocols and the connection will be failed. |
| |
|
| |
=item (Red) No manager table. Nobody can manage!! |
| |
|
| |
lond has the concept of privileged hosts that |
| |
can perform remote management function such |
| |
as update the hosts.tab. The manager hosts |
| |
are described in the |
| |
~httpd/lonTabs/managers.tab file. |
| |
this message is logged if this file is missing. |
| |
|
| |
|
| |
=item (Green) Registering manager <dnsname> as <cluster_name> with <ipaddress> |
| |
|
| |
Reports the successful parse and registration |
| |
of a specific manager. |
| |
|
| |
=item Green existing host <clustername:dnsname> |
| |
|
| |
The manager host is already defined in the hosts.tab |
| |
the information in that table, rather than the info in the |
| |
manager table will be used to determine the manager's ip. |
| |
|
| |
=item (Red) Unable to craete <filename> |
| |
|
| |
lond has been asked to create new versions of an administrative |
| |
file (by a manager). When this is done, the new file is created |
| |
in a temp file and then renamed into place so that there are always |
| |
usable administrative files, even if the update fails. This failure |
| |
message means that the temp file could not be created. |
| |
The update is abandoned, and the old file is available for use. |
| |
|
| |
=item (Green) CopyFile from <oldname> to <newname> failed |
| |
|
| |
In an update of administrative files, the copy of the existing file to a |
| |
backup file failed. The installation of the new file may still succeed, |
| |
but there will not be a back up file to rever to (this should probably |
| |
be yellow). |
| |
|
| |
=item (Green) Pushfile: backed up <oldname> to <newname> |
| |
|
| |
See above, the backup of the old administrative file succeeded. |
| |
|
| |
=item (Red) Pushfile: Unable to install <filename> <reason> |
| |
|
| |
The new administrative file could not be installed. In this case, |
| |
the old administrative file is still in use. |
| |
|
| |
=item (Green) Installed new < filename>. |
| |
|
| |
The new administrative file was successfullly installed. |
| |
|
| |
=item (Red) Reinitializing lond pid=<pid> |
| |
|
| |
The lonc child process <pid> will be sent a USR2 |
| |
signal. |
| |
|
| |
=item (Red) Reinitializing self |
| |
|
| |
We've been asked to re-read our administrative files,and |
| |
are doing so. |
| |
|
| |
=item (Yellow) error:Invalid process identifier <ident> |
| |
|
| |
A reinit command was received, but the target part of the |
| |
command was not valid. It must be either |
| |
'lond' or 'lonc' but was <ident> |
| |
|
| |
=item (Green) isValideditCommand checking: Command = <command> Key = <key> newline = <newline> |
| |
|
| |
Checking to see if lond has been handed a valid edit |
| |
command. It is possible the edit command is not valid |
| |
in that case there are no log messages to indicate that. |
| |
|
| |
=item Result of password change for <username> pwchange_success |
| |
|
| |
The password for <username> was |
| |
successfully changed. |
| |
|
| |
=item Unable to open <user> passwd to change password |
| |
|
| |
Could not rewrite the |
| |
internal password file for a user |
| |
|
| |
=item Result of password change for <user> : <result> |
| |
|
| |
A unix password change for <user> was attempted |
| |
and the pipe returned <result> |
| |
|
| |
=item LWP GET: <message> for <fname> (<remoteurl>) |
| |
|
| |
The lightweight process fetch for a resource failed |
| |
with <message> the local filename that should |
| |
have existed/been created was <fname> the |
| |
corresponding URI: <remoteurl> This is emitted in several |
| |
places. |
| |
|
| |
=item Unable to move <transname> to <destname> |
| |
|
| |
From fetch_user_file_handler - the user file was replicated but could not |
| |
be mv'd to its final location. |
| |
|
| |
=item Looking for <domain> <username> |
| |
|
| |
From user_has_session_handler - This should be a Debug call instead |
| |
it indicates lond is about to check whether the specified user has a |
| |
session active on the specified domain on the local host. |
| |
|
| |
=item Client <ip> (<name>) hanging up: <input> |
| |
|
| |
lond has been asked to exit by its client. The <ip> and <name> identify the |
| |
client systemand <input> is the full exit command sent to the server. |
| |
|
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=item Red CRITICAL: ABNORMAL EXIT. child <pid> for server <hostname> died through a crass with this error->[<message>]. |
| |
|
| |
A lond child terminated. NOte that this termination can also occur when the |
| |
child receives the QUIT or DIE signals. <pid> is the process id of the child, |
| |
<hostname> the host lond is working for, and <message> the reason the child died |
| |
to the best of our ability to get it (I would guess that any numeric value |
| |
represents and errno value). This is immediately followed by |
| |
|
| |
=item Famous last words: Catching exception - <log> |
| |
|
| |
Where log is some recent information about the state of the child. |
| |
|
| |
=item Red CRITICAL: TIME OUT <pid> |
| |
|
| |
Some timeout occured for server <pid>. THis is normally a timeout on an LWP |
| |
doing an HTTP::GET. |
| |
|
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=item child <pid> died |
| |
|
| |
The reaper caught a SIGCHILD for the lond child process <pid> |
| |
This should be modified to also display the IP of the dying child |
| |
$children{$pid} |
| |
|
| |
=item Unknown child 0 died |
| |
A child died but the wait for it returned a pid of zero which really should not |
| |
ever happen. |
| |
|
| |
=item Child <which> - <pid> looks like we missed it's death |
| |
|
| |
When a sigchild is received, the reaper process checks all children to see if they are |
| |
alive. If children are dying quite quickly, the lack of signal queuing can mean |
| |
that a signal hearalds the death of more than one child. If so this message indicates |
| |
which other one died. <which> is the ip of a dead child |
| |
|
| |
=item Free socket: <shutdownretval> |
| |
|
| |
The HUNTSMAN sub was called due to a SIGINT in a child process. The socket is being shutdown. |
| |
for whatever reason, <shutdownretval> is printed but in fact shutdown() is not documented |
| |
to return anything. This is followed by: |
| |
|
| |
=item Red CRITICAL: Shutting down |
| |
|
| |
Just prior to exit. |
| |
|
| |
=item Free socket: <shutdownretval> |
| |
|
| |
The HUPSMAN sub was called due to a SIGHUP. all children get killsed, and lond execs itself. |
| |
This is followed by: |
| |
|
| |
=item (Red) CRITICAL: Restarting |
| |
|
| |
lond is about to exec itself to restart. |
| |
|
| |
=item (Blue) Updating connections |
| |
|
| |
(In response to a USR2). All the children (except the one for localhost) |
| |
are about to be killed, the hosts tab reread, and Apache reloaded via apachereload. |
| |
|
| |
=item (Blue) UpdateHosts killing child <pid> for ip <ip> |
| |
|
| |
Due to USR2 as above. |
| |
|
| |
=item (Green) keeping child for ip <ip> (pid = <pid>) |
| |
|
| |
In response to USR2 as above, the child indicated is not being restarted because |
| |
it's assumed that we'll always need a child for the localhost. |
| |
|
| |
|
| |
=item Going to check on the children |
| |
|
| |
Parent is about to check on the health of the child processes. |
| |
Note that this is in response to a USR1 sent to the parent lond. |
| |
there may be one or more of the next two messages: |
| |
|
| |
=item <pid> is dead |
| |
|
| |
A child that we have in our child hash as alive has evidently died. |
| |
|
| |
=item Child <pid> did not respond |
| |
|
| |
In the health check the child <pid> did not update/produce a pid_.txt |
| |
file when sent it's USR1 signal. That process is killed with a 9 signal, as it's |
| |
assumed to be hung in some un-fixable way. |
| |
|
| |
=item Finished checking children |
| |
|
| |
Master processs's USR1 processing is cojmplete. |
| |
|
| |
=item (Red) CRITICAL: ------- Starting ------ |
| |
|
| |
(There are more '-'s on either side). Lond has forked itself off to |
| |
form a new session and is about to start actual initialization. |
| |
|
| |
=item (Green) Attempting to start child (<client>) |
| |
|
| |
Started a new child process for <client>. Client is IO::Socket object |
| |
connected to the child. This was as a result of a TCP/IP connection from a client. |
| |
|
| |
=item Unable to determine who caller was, getpeername returned nothing |
| |
|
| |
In child process initialization. either getpeername returned undef or |
| |
a zero sized object was returned. Processing continues, but in my opinion, |
| |
this should be cause for the child to exit. |
| |
|
| |
=item Unable to determine clientip |
| |
|
| |
In child process initialization. The peer address from getpeername was not defined. |
| |
The client address is stored as "Unavailable" and processing continues. |
| |
|
| |
=item (Yellow) INFO: Connection <ip> <name> connection type = <type> |
| |
|
| |
In child initialization. A good connectionw as received from <ip>. |
| |
|
| |
=over 2 |
| |
|
| |
=item <name> |
| |
|
| |
is the name of the client from hosts.tab. |
| |
|
| |
=item <type> |
| |
|
| |
Is the connection type which is either |
| |
|
| |
=over 2 |
| |
|
| |
=item manager |
| |
|
| |
The connection is from a manager node, not in hosts.tab |
| |
|
| |
=item client |
| |
|
| |
the connection is from a non-manager in the hosts.tab |
| |
|
| |
=item both |
| |
|
| |
The connection is from a manager in the hosts.tab. |
| |
|
| |
=back |
| |
|
| |
=back |
| |
|
| |
=item (Blue) Certificates not installed -- trying insecure auth |
| |
|
| |
One of the certificate file, key file or |
| |
certificate authority file could not be found for a client attempting |
| |
SSL connection intiation. COnnection will be attemptied in in-secure mode. |
| |
(this would be a system with an up to date lond that has not gotten a |
| |
certificate from us). |
| |
|
| |
=item (Green) Successful local authentication |
| |
|
| |
A local connection successfully negotiated the encryption key. |
| |
In this case the IDEA key is in a file (that is hopefully well protected). |
| |
|
| |
=item (Green) Successful ssl authentication with <client> |
| |
|
| |
The client (<client> is the peer's name in hosts.tab), has successfully |
| |
negotiated an SSL connection with this child process. |
| |
|
| |
=item (Green) Successful insecure authentication with <client> |
| |
|
| |
|
| |
The client has successfully negotiated an insecure connection withthe child process. |
| |
|
| |
=item (Yellow) Attempted insecure connection disallowed |
| |
|
| |
The client attempted and failed to successfully negotiate a successful insecure |
| |
connection. This can happen either because the variable londAllowInsecure is false |
| |
or undefined, or becuse the child did not successfully echo back the challenge |
| |
string. |
| |
|
| |
|
| |
=back |
| |
|
| |
=back |
| |
|
| |
|
| |
=cut |
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