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version 1.125, 2003/04/05 00:11:34
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version 1.221, 2004/08/02 20:59:46
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| # |
# |
| # LON-CAPA is free software; you can redistribute it and/or modify |
# LON-CAPA is free software; you can redistribute it and/or modify |
| # it under the terms of the GNU General Public License as published by |
# it under the terms of the GNU General Public License as published by |
| # the Free Software Foundation; either version 2 of the License, or |
# the Free Software Foundation; either version 2 of the License, or |
| # (at your option) any later version. |
# (at your option) any later version. |
| # |
# |
| # LON-CAPA is distributed in the hope that it will be useful, |
# LON-CAPA is distributed in the hope that it will be useful, |
|
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| # |
# |
| # /home/httpd/html/adm/gpl.txt |
# /home/httpd/html/adm/gpl.txt |
| # |
# |
| |
|
| |
|
| # http://www.lon-capa.org/ |
# http://www.lon-capa.org/ |
| # |
# |
| # 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, |
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| # 10/7,10/8,10/9,10/11,10/13,10/15,11/4,11/16, |
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| # 12/7,12/15,01/06,01/11,01/12,01/14,2/8, |
|
| # 03/07,05/31 Gerd Kortemeyer |
|
| # 06/29,06/30,07/14,07/15,07/17,07/20,07/25,09/18 Gerd Kortemeyer |
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| # 12/05,12/13,12/29 Gerd Kortemeyer |
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| # YEAR=2001 |
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| # 02/12 Gerd Kortemeyer |
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| # 03/24 Gerd Kortemeyer |
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| # 05/11,05/28,08/30 Gerd Kortemeyer |
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| # 11/26,11/27 Gerd Kortemeyer |
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| # 12/22 Gerd Kortemeyer |
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| # YEAR=2002 |
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| # 01/20/02,02/05 Gerd Kortemeyer |
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| # 02/05 Guy Albertelli |
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| # 02/12 Gerd Kortemeyer |
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| # 02/19 Matthew Hall |
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| # 02/25 Gerd Kortemeyer |
|
| # 01/xx/2003 Ron Fox.. Remove preforking. This makes the general daemon |
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| # logic simpler (and there were problems maintaining the preforked |
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| # population). Since the time averaged connection rate is close to zero |
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| # because lonc's purpose is to maintain near continuous connnections, |
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| # preforking is not really needed. |
|
| ### |
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| |
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| |
use strict; |
| use lib '/home/httpd/lib/perl/'; |
use lib '/home/httpd/lib/perl/'; |
| use LONCAPA::Configuration; |
use LONCAPA::Configuration; |
| |
|
| use IO::Socket; |
use IO::Socket; |
| use IO::File; |
use IO::File; |
| use Apache::File; |
#use Apache::File; |
| use Symbol; |
use Symbol; |
| use POSIX; |
use POSIX; |
| use Crypt::IDEA; |
use Crypt::IDEA; |
|
Line 67 use Authen::Krb4;
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Line 45 use Authen::Krb4;
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| use Authen::Krb5; |
use Authen::Krb5; |
| use lib '/home/httpd/lib/perl/'; |
use lib '/home/httpd/lib/perl/'; |
| use localauth; |
use localauth; |
| |
use localenroll; |
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use File::Copy; |
| |
use LONCAPA::ConfigFileEdit; |
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use LONCAPA::lonlocal; |
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use LONCAPA::lonssl; |
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use Fcntl qw(:flock); |
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|
| my $DEBUG = 0; # Non zero to enable debug log entries. |
my $DEBUG = 0; # Non zero to enable debug log entries. |
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Line 75 my $lastlog='';
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Line 59 my $lastlog='';
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| my $VERSION='$Revision$'; #' stupid emacs |
my $VERSION='$Revision$'; #' stupid emacs |
| my $remoteVERSION; |
my $remoteVERSION; |
| my $currenthostid; |
my $currenthostid="default"; |
| my $currentdomainid; |
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 $clientdns; # DNS name of client. |
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my $clientname; # LonCAPA name of client. |
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|
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my $server; |
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my $thisserver; # DNS of us. |
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|
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my $keymode; |
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|
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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 %hostid; # ID's for hosts in cluster by ip. |
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my %hostdom; # LonCAPA domain for hosts in cluster. |
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my %hostip; # IPs for hosts in cluster. |
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my %hostdns; # ID's of hosts looked up by DNS name. |
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|
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my %managers; # Ip -> manager names |
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|
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my %perlvar; # Will have the apache conf defined perl vars. |
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|
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# |
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# The hash below is used for command dispatching, and is therefore keyed on the request keyword. |
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# 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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|
| # |
# |
| # The array below are password error strings." |
# The array below are password error strings." |
| # |
# |
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Line 105 my @adderrors = ("ok",
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Line 135 my @adderrors = ("ok",
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| "lcuseradd Incorrect number of stdinput lines, must be 3", |
"lcuseradd Incorrect number of stdinput lines, must be 3", |
| "lcuseradd Too many other simultaneous pwd changes in progress", |
"lcuseradd Too many other simultaneous pwd changes in progress", |
| "lcuseradd User does not exist", |
"lcuseradd User does not exist", |
| "lcuseradd Unabel to mak ewww member of users's group", |
"lcuseradd Unable to make www member of users's group", |
| "lcuseradd Unable to su to root", |
"lcuseradd Unable to su to root", |
| "lcuseradd Unable to set password", |
"lcuseradd Unable to set password", |
| "lcuseradd Usrname has invbalid charcters", |
"lcuseradd Usrname has invalid characters", |
| "lcuseradd Password has an invalid character", |
"lcuseradd Password has an invalid character", |
| "lcuseradd User already exists", |
"lcuseradd User already exists", |
| "lcuseradd Could not add user.", |
"lcuseradd Could not add user.", |
| "lcuseradd Password mismatch"); |
"lcuseradd Password mismatch"); |
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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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# 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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# Implicit inputs: |
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# $clientdns - The DNS name of the remote client. |
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# $thisserver - Our DNS name. |
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# |
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# Returns: |
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# IDEA session key on success. |
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# undef on failure. |
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# |
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sub LocalConnection { |
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my ($Socket, $initcmd) = @_; |
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Debug("Attempting local connection: $initcmd client: $clientdns me: $thisserver"); |
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if($clientdns ne $thisserver) { |
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&logthis('<font color="red"> LocalConnection rejecting non local: ' |
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."$clientdns ne $thisserver </font>"); |
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close $Socket; |
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return undef; |
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} |
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else { |
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chomp($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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lonssl::Close($SSLSocket); |
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Debug("Key exchange complete: $Key"); |
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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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} |
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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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# |
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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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# 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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# 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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logthis('<font color="red">No manager table. Nobody can manage!!</font>'); |
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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 $hostip{$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{$hostip{$host}} = $host; # Use info from cluster tab if clumemeber |
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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. |
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# in this primitive implementation, the 'certificate' is |
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# just the connecting loncapa client name. This is checked |
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# 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 |
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# new configuration file. This function copies an existing |
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# file to a backup file. |
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# Parameters: |
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# oldfile - Name of the file to backup. |
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# newfile - Name of the backup file. |
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# Return: |
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# 0 - Failure (errno has failure reason). |
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# 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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|
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# The file must exist: |
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|
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if(-e $oldfile) { |
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|
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# Read the old file. |
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|
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my $oldfh = IO::File->new("< $oldfile"); |
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if(!$oldfh) { |
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return 0; |
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} |
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my @contents = <$oldfh>; # Suck in the entire file. |
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|
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# write the backup file: |
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|
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my $newfh = IO::File->new("> $newfile"); |
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if(!(defined $newfh)){ |
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return 0; |
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} |
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my $lines = scalar @contents; |
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for (my $i =0; $i < $lines; $i++) { |
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print $newfh ($contents[$i]); |
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} |
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|
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$oldfh->close; |
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$newfh->close; |
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|
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chmod(0660, $newfile); |
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|
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return 1; |
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|
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} else { |
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return 0; |
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} |
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} |
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# |
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# Host files are passed out with externally visible host IPs. |
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# If, for example, we are behind a fire-wall or NAT host, our |
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# internally visible IP may be different than the externally |
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# visible IP. Therefore, we always adjust the contents of the |
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# host file so that the entry for ME is the IP that we believe |
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# we have. At present, this is defined as the entry that |
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# DNS has for us. If by some chance we are not able to get a |
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# DNS translation for us, then we assume that the host.tab file |
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# is correct. |
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# BUGBUGBUG - in the future, we really should see if we can |
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# easily query the interface(s) instead. |
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# Parameter(s): |
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# contents - The contents of the host.tab to check. |
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# Returns: |
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# newcontents - The adjusted contents. |
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# |
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# |
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sub AdjustHostContents { |
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my $contents = shift; |
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my $adjusted; |
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my $me = $perlvar{'lonHostID'}; |
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|
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foreach my $line (split(/\n/,$contents)) { |
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if(!(($line eq "") || ($line =~ /^ *\#/) || ($line =~ /^ *$/))) { |
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chomp($line); |
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my ($id,$domain,$role,$name,$ip,$maxcon,$idleto,$mincon)=split(/:/,$line); |
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if ($id eq $me) { |
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my $ip = gethostbyname($name); |
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my $ipnew = inet_ntoa($ip); |
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$ip = $ipnew; |
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# Reconstruct the host line and append to adjusted: |
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|
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my $newline = "$id:$domain:$role:$name:$ip"; |
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if($maxcon ne "") { # Not all hosts have loncnew tuning params |
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$newline .= ":$maxcon:$idleto:$mincon"; |
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} |
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$adjusted .= $newline."\n"; |
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|
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} else { # Not me, pass unmodified. |
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$adjusted .= $line."\n"; |
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} |
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} else { # Blank or comment never re-written. |
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$adjusted .= $line."\n"; # Pass blanks and comments as is. |
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} |
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} |
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return $adjusted; |
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} |
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# |
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# InstallFile: Called to install an administrative file: |
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# - The file is created with <name>.tmp |
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# - The <name>.tmp file is then mv'd to <name> |
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# This lugubrious procedure is done to ensure that we are never without |
| |
# a valid, even if dated, version of the file regardless of who crashes |
| |
# and when the crash occurs. |
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# |
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# Parameters: |
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# Name of the file |
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# File Contents. |
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# Return: |
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# nonzero - success. |
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# 0 - failure and $! has an errno. |
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# |
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sub InstallFile { |
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|
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my ($Filename, $Contents) = @_; |
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my $TempFile = $Filename.".tmp"; |
| |
|
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# Open the file for write: |
| |
|
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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(0660, $TempFile); |
| |
|
| |
# Now we can move install the file in position. |
| |
|
| |
move($TempFile, $Filename); |
| |
|
| |
return 1; |
| |
} |
| |
|
| |
|
| |
# |
| |
# ConfigFileFromSelector: converts a configuration file selector |
| |
# (one of host or domain at this point) into a |
| |
# configuration file pathname. |
| |
# |
| |
# 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") { |
| |
$tablefile = $tabledir."hosts.tab"; |
| |
} elsif ($selector eq "domain") { |
| |
$tablefile = $tabledir."domain.tab"; |
| |
} else { |
| |
return undef; |
| |
} |
| |
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); |
| |
|
| |
# At this point in time, pushes for only the following tables are |
| |
# supported: |
| |
# hosts.tab ($filename eq host). |
| |
# domain.tab ($filename eq 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"; |
| |
} |
| |
# |
| |
# >copy< the old table to the backup table |
| |
# don't rename in case system crashes/reboots etc. in the time |
| |
# window between a rename and write. |
| |
# |
| |
my $backupfile = $tablefile; |
| |
$backupfile =~ s/\.tab$/.old/; |
| |
if(!CopyFile($tablefile, $backupfile)) { |
| |
&logthis('<font color="green"> CopyFile from '.$tablefile." to ".$backupfile." failed </font>"); |
| |
return "error:$!"; |
| |
} |
| |
&logthis('<font color="green"> Pushfile: backed up ' |
| |
.$tablefile." to $backupfile</font>"); |
| |
|
| |
# 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); |
| |
} |
| |
|
| |
# Install the new file: |
| |
|
| |
if(!InstallFile($tablefile, $contents)) { |
| |
&logthis('<font color="red"> Pushfile: unable to install ' |
| |
.$tablefile." $! </font>"); |
| |
return "error:$!"; |
| |
} |
| |
else { |
| |
&logthis('<font color="green"> Installed new '.$tablefile |
| |
."</font>"); |
| |
|
| |
} |
| |
|
| |
|
| |
# 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,$ip,$maxcon,$idleto,$mincon) = split(/:/,$ConfigLine); |
| |
my $BinaryIp = gethostbyname($name); |
| |
my $ip = inet_ntoa($ip); |
| |
# |
| |
# 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, $ip, $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 ($request, $filetype, $script) = split(/:/, $request,3); # : in script |
| |
|
| |
# Check the pre-coditions for success: |
| |
|
| |
if($request != "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"; |
| |
} |
| |
|
| |
#--------------------------------------------------------------- |
| |
# |
| |
# Manipulation of hash based databases (factoring out common code |
| |
# for later use as we refactor. |
| |
# |
| |
# Ties a domain level resource file to a hash. |
| |
# If requested a history entry is created in the associated hist file. |
| |
# |
| |
# Parameters: |
| |
# domain - Name of the domain in which the resource file lives. |
| |
# namespace - Name of the hash within that domain. |
| |
# how - How to tie the hash (e.g. GDBM_WRCREAT()). |
| |
# loghead - Optional parameter, if present a log entry is created |
| |
# in the associated history file and this is the first part |
| |
# of that entry. |
| |
# logtail - Goes along with loghead, The actual logentry is of the |
| |
# form $loghead:<timestamp>:logtail. |
| |
# Returns: |
| |
# Reference to a hash bound to the db file or alternatively undef |
| |
# if the tie failed. |
| |
# |
| |
sub tie_domain_hash { |
| |
my ($domain,$namespace,$how,$loghead,$logtail) = @_; |
| |
|
| |
# Filter out any whitespace in the domain name: |
| |
|
| |
$domain =~ s/\W//g; |
| |
|
| |
# We have enough to go on to tie the hash: |
| |
|
| |
my $user_top_dir = $perlvar{'lonUsersDir'}; |
| |
my $domain_dir = $user_top_dir."/$domain"; |
| |
my $resource_file = $domain_dir."/$namespace.db"; |
| |
my %hash; |
| |
if(tie(%hash, 'GDBM_File', $resource_file, $how, 0640)) { |
| |
if (defined($loghead)) { # Need to log the operation. |
| |
my $logFh = IO::File->new(">>$domain_dir/$namespace.hist"); |
| |
if($logFh) { |
| |
my $timestamp = time; |
| |
print $logFh "$loghead:$timestamp:$logtail\n"; |
| |
} |
| |
$logFh->close; |
| |
} |
| |
return \%hash; # Return the tied hash. |
| |
} else { |
| |
return undef; # Tie failed. |
| |
} |
| |
} |
| |
|
| |
# |
| |
# Ties a user's resource file to a hash. |
| |
# If necessary, an appropriate history |
| |
# log file entry is made as well. |
| |
# This sub factors out common code from the subs that manipulate |
| |
# the various gdbm files that keep keyword value pairs. |
| |
# Parameters: |
| |
# domain - Name of the domain the user is in. |
| |
# user - Name of the 'current user'. |
| |
# namespace - Namespace representing the file to tie. |
| |
# how - What the tie is done to (e.g. GDBM_WRCREAT(). |
| |
# loghead - Optional first part of log entry if there may be a |
| |
# history file. |
| |
# what - Optional tail of log entry if there may be a history |
| |
# file. |
| |
# Returns: |
| |
# hash to which the database is tied. It's up to the caller to untie. |
| |
# undef if the has could not be tied. |
| |
# |
| |
sub tie_user_hash { |
| |
my ($domain,$user,$namespace,$how,$loghead,$what) = @_; |
| |
|
| |
$namespace=~s/\//\_/g; # / -> _ |
| |
$namespace=~s/\W//g; # whitespace eliminated. |
| |
my $proname = propath($domain, $user); |
| |
|
| |
# Tie the database. |
| |
|
| |
my %hash; |
| |
if(tie(%hash, 'GDBM_File', "$proname/$namespace.db", |
| |
$how, 0640)) { |
| |
# If this is a namespace for which a history is kept, |
| |
# make the history log entry: |
| |
if (($namespace =~/^nohist\_/) && (defined($loghead))) { |
| |
my $args = scalar @_; |
| |
Debug(" Opening history: $namespace $args"); |
| |
my $hfh = IO::File->new(">>$proname/$namespace.hist"); |
| |
if($hfh) { |
| |
my $now = time; |
| |
print $hfh "$loghead:$now:$what\n"; |
| |
} |
| |
$hfh->close; |
| |
} |
| |
return \%hash; |
| |
} else { |
| |
return undef; |
| |
} |
| |
|
| |
} |
| |
|
| |
#--------------------- 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\n","$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=&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 hsot 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, "$buildkey\n", "$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. |
| |
# $clientname - Global variable that carries the name of the hsot we're connected to. |
| |
# Returns: |
| |
# 1 - Ok to continue processing. |
| |
# 0 - Program should exit. |
| |
# Side effects: |
| |
# Reply information is sent to the client. |
| |
sub load_handler { |
| |
my ($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\n", "$cmd:$tail"); |
| |
|
| |
return 1; |
| |
} |
| |
register_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. |
| |
# $clientname - Global variable that carries the name of the hsot we're connected to. |
| |
# Returns: |
| |
# 1 - Ok to continue processing. |
| |
# 0 - Program should exit |
| |
# Implicit inputs: |
| |
# whatever the userload() function requires. |
| |
# Implicit outputs: |
| |
# the reply is written to the client. |
| |
# |
| |
sub user_load_handler { |
| |
my ($cmd, $tail, $replyfd) = @_; |
| |
|
| |
my $userloadpercent=&userload(); |
| |
&Reply($replyfd, "$userloadpercent\n", "$cmd:$tail"); |
| |
|
| |
return 1; |
| |
} |
| |
register_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:$tail"; |
| |
|
| |
# Pull the domain and username out of the command tail. |
| |
# and call GetAuthType to determine the authentication type. |
| |
|
| |
my ($udom,$uname)=split(/:/,$tail); |
| |
my $result = &GetAuthType($udom, $uname); |
| |
if($result eq "nouser") { |
| |
&Failure( $replyfd, "unknown_user\n", $userinput); |
| |
} else { |
| |
# |
| |
# We only want to pass the second field from GetAuthType |
| |
# for ^krb.. otherwise we'll be handing out the encrypted |
| |
# password for internals e.g. |
| |
# |
| |
my ($type,$otherinfo) = split(/:/,$result); |
| |
if($type =~ /^krb/) { |
| |
$type = $result; |
| |
} |
| |
&Reply( $replyfd, "$type\n", $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) = @_; |
| |
|
| |
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)) { |
| |
|
| |
# 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\n", $userinput); |
| |
|
| |
} else { |
| |
&Failure( $client, "refused\n", $userinput); |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("pushfile", \&push_file_handler, 1, 0, 1); |
| |
|
| |
|
| |
|
| |
# 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\n", $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; |
| |
} |
| |
register_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. |
| |
|
| |
my ($udom,$uname,$upass)=split(/:/,$tail); |
| |
&Debug(" Authenticate domain = $udom, user = $uname, password = $upass"); |
| |
chomp($upass); |
| |
$upass=&unescape($upass); |
| |
|
| |
my $pwdcorrect = &validate_user($udom, $uname, $upass); |
| |
if($pwdcorrect) { |
| |
&Reply( $client, "authorized\n", $userinput); |
| |
# |
| |
# Bad credentials: Failed to authorize |
| |
# |
| |
} else { |
| |
&Failure( $client, "non_authorized\n", $userinput); |
| |
} |
| |
|
| |
return 1; |
| |
} |
| |
|
| |
register_handler("auth", \&authenticate_handler, 1, 1, 0); |
| |
|
| |
#--------------------------------------------------------------- |
| |
# |
| |
# 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 $wasenc = 0; # True if request was encrypted. |
| |
# ------------------------------------------------------------ See if encrypted |
| |
if ($userinput =~ /^enc/) { |
| |
$userinput = decipher($userinput); |
| |
$wasenc=1; |
| |
if(!$userinput) { # Cipher not defined. |
| |
&Failure($client, "error: Encrypted data without negotated key"); |
| |
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; |
| |
} |
| |
|
| |
} |
| |
|
| |
#------------------- Commands not yet in spearate handlers. -------------- |
| |
|
| |
|
| |
# ---------------------------------------------------------------------- passwd |
| |
if ($userinput =~ /^passwd/) { # encoded and client |
| |
if (($wasenc==1) && isClient) { |
| |
my |
| |
($cmd,$udom,$uname,$upass,$npass)=split(/:/,$userinput); |
| |
chomp($npass); |
| |
$upass=&unescape($upass); |
| |
$npass=&unescape($npass); |
| |
&Debug("Trying to change password for $uname"); |
| |
my $proname=propath($udom,$uname); |
| |
my $passfilename="$proname/passwd"; |
| |
if (-e $passfilename) { |
| |
my $realpasswd; |
| |
{ my $pf = IO::File->new($passfilename); |
| |
$realpasswd=<$pf>; } |
| |
chomp($realpasswd); |
| |
my ($howpwd,$contentpwd)=split(/:/,$realpasswd); |
| |
if ($howpwd eq 'internal') { |
| |
&Debug("internal auth"); |
| |
if (crypt($upass,$contentpwd) eq $contentpwd) { |
| |
my $salt=time; |
| |
$salt=substr($salt,6,2); |
| |
my $ncpass=crypt($npass,$salt); |
| |
{ |
| |
my $pf; |
| |
if ($pf = IO::File->new(">$passfilename")) { |
| |
print $pf "internal:$ncpass\n"; |
| |
&logthis("Result of password change for $uname: pwchange_success"); |
| |
print $client "ok\n"; |
| |
} else { |
| |
&logthis("Unable to open $uname passwd to change password"); |
| |
print $client "non_authorized\n"; |
| |
} |
| |
} |
| |
|
| |
} else { |
| |
print $client "non_authorized\n"; |
| |
} |
| |
} elsif ($howpwd eq 'unix') { |
| |
# Unix means we have to access /etc/password |
| |
# one way or another. |
| |
# First: Make sure the current password is |
| |
# correct |
| |
&Debug("auth is unix"); |
| |
$contentpwd=(getpwnam($uname))[1]; |
| |
my $pwdcorrect = "0"; |
| |
my $pwauth_path="/usr/local/sbin/pwauth"; |
| |
unless ($contentpwd eq 'x') { |
| |
$pwdcorrect= |
| |
(crypt($upass,$contentpwd) eq $contentpwd); |
| |
} elsif (-e $pwauth_path) { |
| |
open PWAUTH, "|$pwauth_path" or |
| |
die "Cannot invoke authentication"; |
| |
print PWAUTH "$uname\n$upass\n"; |
| |
close PWAUTH; |
| |
&Debug("exited pwauth with $? ($uname,$upass) "); |
| |
$pwdcorrect=($? == 0); |
| |
} |
| |
if ($pwdcorrect) { |
| |
my $execdir=$perlvar{'lonDaemons'}; |
| |
&Debug("Opening lcpasswd pipeline"); |
| |
my $pf = IO::File->new("|$execdir/lcpasswd > $perlvar{'lonDaemons'}/logs/lcpasswd.log"); |
| |
print $pf "$uname\n$npass\n$npass\n"; |
| |
close $pf; |
| |
my $err = $?; |
| |
my $result = ($err>0 ? 'pwchange_failure' |
| |
: 'ok'); |
| |
&logthis("Result of password change for $uname: ". |
| |
&lcpasswdstrerror($?)); |
| |
print $client "$result\n"; |
| |
} else { |
| |
print $client "non_authorized\n"; |
| |
} |
| |
} else { |
| |
print $client "auth_mode_error\n"; |
| |
} |
| |
} else { |
| |
print $client "unknown_user\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# -------------------------------------------------------------------- makeuser |
| |
} elsif ($userinput =~ /^makeuser/) { # encoded and client. |
| |
&Debug("Make user received"); |
| |
my $oldumask=umask(0077); |
| |
if (($wasenc==1) && isClient) { |
| |
my |
| |
($cmd,$udom,$uname,$umode,$npass)=split(/:/,$userinput); |
| |
&Debug("cmd =".$cmd." $udom =".$udom. |
| |
" uname=".$uname); |
| |
chomp($npass); |
| |
$npass=&unescape($npass); |
| |
my $proname=propath($udom,$uname); |
| |
my $passfilename="$proname/passwd"; |
| |
&Debug("Password file created will be:". |
| |
$passfilename); |
| |
if (-e $passfilename) { |
| |
print $client "already_exists\n"; |
| |
} elsif ($udom ne $currentdomainid) { |
| |
print $client "not_right_domain\n"; |
| |
} else { |
| |
my @fpparts=split(/\//,$proname); |
| |
my $fpnow=$fpparts[0].'/'.$fpparts[1].'/'.$fpparts[2]; |
| |
my $fperror=''; |
| |
for (my $i=3;$i<=$#fpparts;$i++) { |
| |
$fpnow.='/'.$fpparts[$i]; |
| |
unless (-e $fpnow) { |
| |
unless (mkdir($fpnow,0777)) { |
| |
$fperror="error: ".($!+0) |
| |
." mkdir failed while attempting " |
| |
."makeuser"; |
| |
} |
| |
} |
| |
} |
| |
unless ($fperror) { |
| |
my $result=&make_passwd_file($uname, $umode,$npass, |
| |
$passfilename); |
| |
print $client $result; |
| |
} else { |
| |
print $client "$fperror\n"; |
| |
} |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
umask($oldumask); |
| |
# -------------------------------------------------------------- changeuserauth |
| |
} elsif ($userinput =~ /^changeuserauth/) { # encoded & client |
| |
&Debug("Changing authorization"); |
| |
if (($wasenc==1) && isClient) { |
| |
my |
| |
($cmd,$udom,$uname,$umode,$npass)=split(/:/,$userinput); |
| |
chomp($npass); |
| |
&Debug("cmd = ".$cmd." domain= ".$udom. |
| |
"uname =".$uname." umode= ".$umode); |
| |
$npass=&unescape($npass); |
| |
my $proname=&propath($udom,$uname); |
| |
my $passfilename="$proname/passwd"; |
| |
if ($udom ne $currentdomainid) { |
| |
print $client "not_right_domain\n"; |
| |
} else { |
| |
my $result=&make_passwd_file($uname, $umode,$npass, |
| |
$passfilename); |
| |
print $client $result; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ------------------------------------------------------------------------ home |
| |
} elsif ($userinput =~ /^home/) { # client clear or encoded |
| |
if(isClient) { |
| |
my ($cmd,$udom,$uname)=split(/:/,$userinput); |
| |
chomp($uname); |
| |
my $proname=propath($udom,$uname); |
| |
if (-e $proname) { |
| |
print $client "found\n"; |
| |
} else { |
| |
print $client "not_found\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ---------------------------------------------------------------------- update |
| |
} elsif ($userinput =~ /^update/) { # client clear or encoded. |
| |
if(isClient) { |
| |
my ($cmd,$fname)=split(/:/,$userinput); |
| |
my $ownership=ishome($fname); |
| |
if ($ownership eq 'not_owner') { |
| |
if (-e $fname) { |
| |
my ($dev,$ino,$mode,$nlink, |
| |
$uid,$gid,$rdev,$size, |
| |
$atime,$mtime,$ctime, |
| |
$blksize,$blocks)=stat($fname); |
| |
my $now=time; |
| |
my $since=$now-$atime; |
| |
if ($since>$perlvar{'lonExpire'}) { |
| |
my $reply= |
| |
&reply("unsub:$fname","$clientname"); |
| |
unlink("$fname"); |
| |
} else { |
| |
my $transname="$fname.in.transfer"; |
| |
my $remoteurl= |
| |
&reply("sub:$fname","$clientname"); |
| |
my $response; |
| |
{ |
| |
my $ua=new LWP::UserAgent; |
| |
my $request=new HTTP::Request('GET',"$remoteurl"); |
| |
$response=$ua->request($request,$transname); |
| |
} |
| |
if ($response->is_error()) { |
| |
unlink($transname); |
| |
my $message=$response->status_line; |
| |
&logthis( |
| |
"LWP GET: $message for $fname ($remoteurl)"); |
| |
} else { |
| |
if ($remoteurl!~/\.meta$/) { |
| |
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'); |
| |
} |
| |
} |
| |
rename($transname,$fname); |
| |
} |
| |
} |
| |
print $client "ok\n"; |
| |
} else { |
| |
print $client "not_found\n"; |
| |
} |
| |
} else { |
| |
print $client "rejected\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# -------------------------------------- fetch a user file from a remote server |
| |
} elsif ($userinput =~ /^fetchuserfile/) { # Client clear or enc. |
| |
if(isClient) { |
| |
my ($cmd,$fname)=split(/:/,$userinput); |
| |
my ($udom,$uname,$ufile) = ($fname =~ m|^([^/]+)/([^/]+)/(.+)$|); |
| |
my $udir=propath($udom,$uname).'/userfiles'; |
| |
unless (-e $udir) { mkdir($udir,0770); } |
| |
if (-e $udir) { |
| |
$ufile=~s/^[\.\~]+//; |
| |
my $path = $udir; |
| |
if ($ufile =~m|(.+)/([^/]+)$|) { |
| |
my @parts=split('/',$1); |
| |
foreach my $part (@parts) { |
| |
$path .= '/'.$part; |
| |
if ((-e $path)!=1) { |
| |
mkdir($path,0770); |
| |
} |
| |
} |
| |
} |
| |
my $destname=$udir.'/'.$ufile; |
| |
my $transname=$udir.'/'.$ufile.'.in.transit'; |
| |
my $remoteurl='http://'.$clientip.'/userfiles/'.$fname; |
| |
my $response; |
| |
{ |
| |
my $ua=new LWP::UserAgent; |
| |
my $request=new HTTP::Request('GET',"$remoteurl"); |
| |
$response=$ua->request($request,$transname); |
| |
} |
| |
if ($response->is_error()) { |
| |
unlink($transname); |
| |
my $message=$response->status_line; |
| |
&logthis("LWP GET: $message for $fname ($remoteurl)"); |
| |
print $client "failed\n"; |
| |
} else { |
| |
if (!rename($transname,$destname)) { |
| |
&logthis("Unable to move $transname to $destname"); |
| |
unlink($transname); |
| |
print $client "failed\n"; |
| |
} else { |
| |
print $client "ok\n"; |
| |
} |
| |
} |
| |
} else { |
| |
print $client "not_home\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
} |
| |
# --------------------------------------------------------- remove a user file |
| |
} elsif ($userinput =~ /^removeuserfile/) { # Client clear or enc. |
| |
if(isClient) { |
| |
my ($cmd,$fname)=split(/:/,$userinput); |
| |
my ($udom,$uname,$ufile) = ($fname =~ m|^([^/]+)/([^/]+)/(.+)$|); |
| |
&logthis("$udom - $uname - $ufile"); |
| |
if ($ufile =~m|/\.\./|) { |
| |
# any files paths with /../ in them refuse |
| |
# to deal with |
| |
print $client "refused\n"; |
| |
} else { |
| |
my $udir=propath($udom,$uname); |
| |
if (-e $udir) { |
| |
my $file=$udir.'/userfiles/'.$ufile; |
| |
if (-e $file) { |
| |
unlink($file); |
| |
if (-e $file) { |
| |
print $client "failed\n"; |
| |
} else { |
| |
print $client "ok\n"; |
| |
} |
| |
} else { |
| |
print $client "not_found\n"; |
| |
} |
| |
} else { |
| |
print $client "not_home\n"; |
| |
} |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
} |
| |
# ------------------------------------------ authenticate access to a user file |
| |
} elsif ($userinput =~ /^tokenauthuserfile/) { # Client only |
| |
if(isClient) { |
| |
my ($cmd,$fname,$session)=split(/:/,$userinput); |
| |
chomp($session); |
| |
my $reply='non_auth'; |
| |
if (open(ENVIN,$perlvar{'lonIDsDir'}.'/'. |
| |
$session.'.id')) { |
| |
while (my $line=<ENVIN>) { |
| |
if ($line=~ m|userfile\.\Q$fname\E\=|) { $reply='ok'; } |
| |
} |
| |
close(ENVIN); |
| |
print $client $reply."\n"; |
| |
} else { |
| |
print $client "invalid_token\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ----------------------------------------------------------------- unsubscribe |
| |
} elsif ($userinput =~ /^unsub/) { |
| |
if(isClient) { |
| |
my ($cmd,$fname)=split(/:/,$userinput); |
| |
if (-e $fname) { |
| |
print $client &unsub($fname,$clientip); |
| |
} else { |
| |
print $client "not_found\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ------------------------------------------------------------------- subscribe |
| |
} elsif ($userinput =~ /^sub/) { |
| |
if(isClient) { |
| |
print $client &subscribe($userinput,$clientip); |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ------------------------------------------------------------- current version |
| |
} elsif ($userinput =~ /^currentversion/) { |
| |
if(isClient) { |
| |
my ($cmd,$fname)=split(/:/,$userinput); |
| |
print $client ¤tversion($fname)."\n"; |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ------------------------------------------------------------------------- log |
| |
} elsif ($userinput =~ /^log/) { |
| |
if(isClient) { |
| |
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:$clientname:$what\n"; |
| |
print $client "ok\n"; |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." IO::File->new Failed " |
| |
."while attempting log\n"; |
| |
} |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ------------------------------------------------------------------------- put |
| |
} elsif ($userinput =~ /^put/) { |
| |
if(isClient) { |
| |
my ($cmd,$udom,$uname,$namespace,$what) |
| |
=split(/:/,$userinput,5); |
| |
$namespace=~s/\//\_/g; |
| |
$namespace=~s/\W//g; |
| |
if ($namespace ne 'roles') { |
| |
chomp($what); |
| |
my $proname=propath($udom,$uname); |
| |
my $now=time; |
| |
my @pairs=split(/\&/,$what); |
| |
my %hash; |
| |
if (tie(%hash,'GDBM_File', |
| |
"$proname/$namespace.db", |
| |
&GDBM_WRCREAT(),0640)) { |
| |
unless ($namespace=~/^nohist\_/) { |
| |
my $hfh; |
| |
if ($hfh=IO::File->new(">>$proname/$namespace.hist")) { print $hfh "P:$now:$what\n"; } |
| |
} |
| |
|
| |
foreach my $pair (@pairs) { |
| |
my ($key,$value)=split(/=/,$pair); |
| |
$hash{$key}=$value; |
| |
} |
| |
if (untie(%hash)) { |
| |
print $client "ok\n"; |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." untie(GDBM) failed ". |
| |
"while attempting put\n"; |
| |
} |
| |
} else { |
| |
print $client "error: ".($!) |
| |
." tie(GDBM) Failed ". |
| |
"while attempting put\n"; |
| |
} |
| |
} else { |
| |
print $client "refused\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ------------------------------------------------------------------- inc |
| |
} elsif ($userinput =~ /^inc:/) { |
| |
if(isClient) { |
| |
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 @pairs=split(/\&/,$what); |
| |
my %hash; |
| |
if (tie(%hash,'GDBM_File', |
| |
"$proname/$namespace.db", |
| |
&GDBM_WRCREAT(),0640)) { |
| |
unless ($namespace=~/^nohist\_/) { |
| |
my $hfh; |
| |
if ($hfh=IO::File->new(">>$proname/$namespace.hist")) { print $hfh "P:$now:$what\n"; } |
| |
} |
| |
foreach my $pair (@pairs) { |
| |
my ($key,$value)=split(/=/,$pair); |
| |
# We could check that we have a number... |
| |
if (! defined($value) || $value eq '') { |
| |
$value = 1; |
| |
} |
| |
$hash{$key}+=$value; |
| |
} |
| |
if (untie(%hash)) { |
| |
print $client "ok\n"; |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." untie(GDBM) failed ". |
| |
"while attempting inc\n"; |
| |
} |
| |
} else { |
| |
print $client "error: ".($!) |
| |
." tie(GDBM) Failed ". |
| |
"while attempting inc\n"; |
| |
} |
| |
} else { |
| |
print $client "refused\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# -------------------------------------------------------------------- rolesput |
| |
} elsif ($userinput =~ /^rolesput/) { |
| |
if(isClient) { |
| |
&Debug("rolesput"); |
| |
if ($wasenc==1) { |
| |
my ($cmd,$exedom,$exeuser,$udom,$uname,$what) |
| |
=split(/:/,$userinput); |
| |
&Debug("cmd = ".$cmd." exedom= ".$exedom. |
| |
"user = ".$exeuser." udom=".$udom. |
| |
"what = ".$what); |
| |
my $namespace='roles'; |
| |
chomp($what); |
| |
my $proname=propath($udom,$uname); |
| |
my $now=time; |
| |
my @pairs=split(/\&/,$what); |
| |
my %hash; |
| |
if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_WRCREAT(),0640)) { |
| |
{ |
| |
my $hfh; |
| |
if ($hfh=IO::File->new(">>$proname/$namespace.hist")) { |
| |
print $hfh "P:$now:$exedom:$exeuser:$what\n"; |
| |
} |
| |
} |
| |
|
| |
foreach my $pair (@pairs) { |
| |
my ($key,$value)=split(/=/,$pair); |
| |
&ManagePermissions($key, $udom, $uname, |
| |
&GetAuthType( $udom, |
| |
$uname)); |
| |
$hash{$key}=$value; |
| |
} |
| |
if (untie(%hash)) { |
| |
print $client "ok\n"; |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." untie(GDBM) Failed ". |
| |
"while attempting rolesput\n"; |
| |
} |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." tie(GDBM) Failed ". |
| |
"while attempting rolesput\n"; |
| |
} |
| |
} else { |
| |
print $client "refused\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# -------------------------------------------------------------------- rolesdel |
| |
} elsif ($userinput =~ /^rolesdel/) { |
| |
if(isClient) { |
| |
&Debug("rolesdel"); |
| |
if ($wasenc==1) { |
| |
my ($cmd,$exedom,$exeuser,$udom,$uname,$what) |
| |
=split(/:/,$userinput); |
| |
&Debug("cmd = ".$cmd." exedom= ".$exedom. |
| |
"user = ".$exeuser." udom=".$udom. |
| |
"what = ".$what); |
| |
my $namespace='roles'; |
| |
chomp($what); |
| |
my $proname=propath($udom,$uname); |
| |
my $now=time; |
| |
my @rolekeys=split(/\&/,$what); |
| |
my %hash; |
| |
if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_WRCREAT(),0640)) { |
| |
{ |
| |
my $hfh; |
| |
if ($hfh=IO::File->new(">>$proname/$namespace.hist")) { |
| |
print $hfh "D:$now:$exedom:$exeuser:$what\n"; |
| |
} |
| |
} |
| |
foreach my $key (@rolekeys) { |
| |
delete $hash{$key}; |
| |
} |
| |
if (untie(%hash)) { |
| |
print $client "ok\n"; |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." untie(GDBM) Failed ". |
| |
"while attempting rolesdel\n"; |
| |
} |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." tie(GDBM) Failed ". |
| |
"while attempting rolesdel\n"; |
| |
} |
| |
} else { |
| |
print $client "refused\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ------------------------------------------------------------------------- get |
| |
} elsif ($userinput =~ /^get/) { |
| |
if(isClient) { |
| |
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=''; |
| |
my %hash; |
| |
if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER(),0640)) { |
| |
for (my $i=0;$i<=$#queries;$i++) { |
| |
$qresult.="$hash{$queries[$i]}&"; |
| |
} |
| |
if (untie(%hash)) { |
| |
$qresult=~s/\&$//; |
| |
print $client "$qresult\n"; |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." untie(GDBM) Failed ". |
| |
"while attempting get\n"; |
| |
} |
| |
} else { |
| |
if ($!+0 == 2) { |
| |
print $client "error:No such file or ". |
| |
"GDBM reported bad block error\n"; |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." tie(GDBM) Failed ". |
| |
"while attempting get\n"; |
| |
} |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ------------------------------------------------------------------------ eget |
| |
} elsif ($userinput =~ /^eget/) { |
| |
if (isClient) { |
| |
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=''; |
| |
my %hash; |
| |
if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER(),0640)) { |
| |
for (my $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: ".($!+0) |
| |
." untie(GDBM) Failed ". |
| |
"while attempting eget\n"; |
| |
} |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." tie(GDBM) Failed ". |
| |
"while attempting eget\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ------------------------------------------------------------------------- del |
| |
} elsif ($userinput =~ /^del/) { |
| |
if(isClient) { |
| |
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 @keys=split(/\&/,$what); |
| |
my %hash; |
| |
if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_WRCREAT(),0640)) { |
| |
unless ($namespace=~/^nohist\_/) { |
| |
my $hfh; |
| |
if ($hfh=IO::File->new(">>$proname/$namespace.hist")) { print $hfh "D:$now:$what\n"; } |
| |
} |
| |
foreach my $key (@keys) { |
| |
delete($hash{$key}); |
| |
} |
| |
if (untie(%hash)) { |
| |
print $client "ok\n"; |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." untie(GDBM) Failed ". |
| |
"while attempting del\n"; |
| |
} |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." tie(GDBM) Failed ". |
| |
"while attempting del\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ------------------------------------------------------------------------ keys |
| |
} elsif ($userinput =~ /^keys/) { |
| |
if(isClient) { |
| |
my ($cmd,$udom,$uname,$namespace) |
| |
=split(/:/,$userinput); |
| |
$namespace=~s/\//\_/g; |
| |
$namespace=~s/\W//g; |
| |
my $proname=propath($udom,$uname); |
| |
my $qresult=''; |
| |
my %hash; |
| |
if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER(),0640)) { |
| |
foreach my $key (keys %hash) { |
| |
$qresult.="$key&"; |
| |
} |
| |
if (untie(%hash)) { |
| |
$qresult=~s/\&$//; |
| |
print $client "$qresult\n"; |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." untie(GDBM) Failed ". |
| |
"while attempting keys\n"; |
| |
} |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." tie(GDBM) Failed ". |
| |
"while attempting keys\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ----------------------------------------------------------------- dumpcurrent |
| |
} elsif ($userinput =~ /^currentdump/) { |
| |
if (isClient) { |
| |
my ($cmd,$udom,$uname,$namespace) |
| |
=split(/:/,$userinput); |
| |
$namespace=~s/\//\_/g; |
| |
$namespace=~s/\W//g; |
| |
my $qresult=''; |
| |
my $proname=propath($udom,$uname); |
| |
my %hash; |
| |
if (tie(%hash,'GDBM_File', |
| |
"$proname/$namespace.db", |
| |
&GDBM_READER(),0640)) { |
| |
# 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 %data = (); |
| |
while (my ($key,$value) = each(%hash)) { |
| |
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(%hash)) { |
| |
while (my ($symb,$param_hash) = each(%data)) { |
| |
while(my ($param,$value) = each (%$param_hash)){ |
| |
next if ($param =~ /^v\./); |
| |
$qresult.=$symb.':'.$param.'='.$value.'&'; |
| |
} |
| |
} |
| |
chop($qresult); |
| |
print $client "$qresult\n"; |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." untie(GDBM) Failed ". |
| |
"while attempting currentdump\n"; |
| |
} |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." tie(GDBM) Failed ". |
| |
"while attempting currentdump\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
} |
| |
# ------------------------------------------------------------------------ dump |
| |
} elsif ($userinput =~ /^dump/) { |
| |
if(isClient) { |
| |
my ($cmd,$udom,$uname,$namespace,$regexp) |
| |
=split(/:/,$userinput); |
| |
$namespace=~s/\//\_/g; |
| |
$namespace=~s/\W//g; |
| |
if (defined($regexp)) { |
| |
$regexp=&unescape($regexp); |
| |
} else { |
| |
$regexp='.'; |
| |
} |
| |
my $qresult=''; |
| |
my $proname=propath($udom,$uname); |
| |
my %hash; |
| |
if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER(),0640)) { |
| |
while (my ($key,$value) = each(%hash)) { |
| |
if ($regexp eq '.') { |
| |
$qresult.=$key.'='.$value.'&'; |
| |
} else { |
| |
my $unescapeKey = &unescape($key); |
| |
if (eval('$unescapeKey=~/$regexp/')) { |
| |
$qresult.="$key=$value&"; |
| |
} |
| |
} |
| |
} |
| |
if (untie(%hash)) { |
| |
chop($qresult); |
| |
print $client "$qresult\n"; |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." untie(GDBM) Failed ". |
| |
"while attempting dump\n"; |
| |
} |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." tie(GDBM) Failed ". |
| |
"while attempting dump\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ----------------------------------------------------------------------- store |
| |
} elsif ($userinput =~ /^store/) { |
| |
if(isClient) { |
| |
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 @pairs=split(/\&/,$what); |
| |
my %hash; |
| |
if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_WRCREAT(),0640)) { |
| |
unless ($namespace=~/^nohist\_/) { |
| |
my $hfh; |
| |
if ($hfh=IO::File->new(">>$proname/$namespace.hist")) { |
| |
print $hfh "P:$now:$rid:$what\n"; |
| |
} |
| |
} |
| |
my @previouskeys=split(/&/,$hash{"keys:$rid"}); |
| |
my $key; |
| |
$hash{"version:$rid"}++; |
| |
my $version=$hash{"version:$rid"}; |
| |
my $allkeys=''; |
| |
foreach my $pair (@pairs) { |
| |
my ($key,$value)=split(/=/,$pair); |
| |
$allkeys.=$key.':'; |
| |
$hash{"$version:$rid:$key"}=$value; |
| |
} |
| |
$hash{"$version:$rid:timestamp"}=$now; |
| |
$allkeys.='timestamp'; |
| |
$hash{"$version:keys:$rid"}=$allkeys; |
| |
if (untie(%hash)) { |
| |
print $client "ok\n"; |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." untie(GDBM) Failed ". |
| |
"while attempting store\n"; |
| |
} |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." tie(GDBM) Failed ". |
| |
"while attempting store\n"; |
| |
} |
| |
} else { |
| |
print $client "refused\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# --------------------------------------------------------------------- restore |
| |
} elsif ($userinput =~ /^restore/) { |
| |
if(isClient) { |
| |
my ($cmd,$udom,$uname,$namespace,$rid) |
| |
=split(/:/,$userinput); |
| |
$namespace=~s/\//\_/g; |
| |
$namespace=~s/\W//g; |
| |
chomp($rid); |
| |
my $proname=propath($udom,$uname); |
| |
my $qresult=''; |
| |
my %hash; |
| |
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: ".($!+0) |
| |
." untie(GDBM) Failed ". |
| |
"while attempting restore\n"; |
| |
} |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." tie(GDBM) Failed ". |
| |
"while attempting restore\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# -------------------------------------------------------------------- chatsend |
| |
} elsif ($userinput =~ /^chatsend/) { |
| |
if(isClient) { |
| |
my ($cmd,$cdom,$cnum,$newpost)=split(/\:/,$userinput); |
| |
&chatadd($cdom,$cnum,$newpost); |
| |
print $client "ok\n"; |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# -------------------------------------------------------------------- chatretr |
| |
} elsif ($userinput =~ /^chatretr/) { |
| |
if(isClient) { |
| |
my |
| |
($cmd,$cdom,$cnum,$udom,$uname)=split(/\:/,$userinput); |
| |
my $reply=''; |
| |
foreach (&getchat($cdom,$cnum,$udom,$uname)) { |
| |
$reply.=&escape($_).':'; |
| |
} |
| |
$reply=~s/\:$//; |
| |
print $client $reply."\n"; |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ------------------------------------------------------------------- querysend |
| |
} elsif ($userinput =~ /^querysend/) { |
| |
if (isClient) { |
| |
my ($cmd,$query, |
| |
$arg1,$arg2,$arg3)=split(/\:/,$userinput); |
| |
$query=~s/\n*$//g; |
| |
print $client "". |
| |
sqlreply("$clientname\&$query". |
| |
"\&$arg1"."\&$arg2"."\&$arg3")."\n"; |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ------------------------------------------------------------------ queryreply |
| |
} elsif ($userinput =~ /^queryreply/) { |
| |
if(isClient) { |
| |
my ($cmd,$id,$reply)=split(/:/,$userinput); |
| |
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; |
| |
print $client "ok\n"; |
| |
} |
| |
else { |
| |
print $client "error: ".($!+0) |
| |
." IO::File->new Failed ". |
| |
"while attempting queryreply\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ----------------------------------------------------------------- courseidput |
| |
} elsif ($userinput =~ /^courseidput/) { |
| |
if(isClient) { |
| |
my ($cmd,$udom,$what)=split(/:/,$userinput); |
| |
chomp($what); |
| |
$udom=~s/\W//g; |
| |
my $proname= |
| |
"$perlvar{'lonUsersDir'}/$udom/nohist_courseids"; |
| |
my $now=time; |
| |
my @pairs=split(/\&/,$what); |
| |
my %hash; |
| |
if (tie(%hash,'GDBM_File',"$proname.db",&GDBM_WRCREAT(),0640)) { |
| |
foreach my $pair (@pairs) { |
| |
my ($key,$descr,$inst_code)=split(/=/,$pair); |
| |
$hash{$key}=$descr.':'.$inst_code.':'.$now; |
| |
} |
| |
if (untie(%hash)) { |
| |
print $client "ok\n"; |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." untie(GDBM) Failed ". |
| |
"while attempting courseidput\n"; |
| |
} |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." tie(GDBM) Failed ". |
| |
"while attempting courseidput\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ---------------------------------------------------------------- courseiddump |
| |
} elsif ($userinput =~ /^courseiddump/) { |
| |
if(isClient) { |
| |
my ($cmd,$udom,$since,$description) |
| |
=split(/:/,$userinput); |
| |
if (defined($description)) { |
| |
$description=&unescape($description); |
| |
} else { |
| |
$description='.'; |
| |
} |
| |
unless (defined($since)) { $since=0; } |
| |
my $qresult=''; |
| |
my $proname= |
| |
"$perlvar{'lonUsersDir'}/$udom/nohist_courseids"; |
| |
my %hash; |
| |
if (tie(%hash,'GDBM_File',"$proname.db",&GDBM_READER(),0640)) { |
| |
while (my ($key,$value) = each(%hash)) { |
| |
my ($descr,$lasttime,$inst_code); |
| |
if ($value =~ m/^([^\:]*):([^\:]*):(\d+)$/) { |
| |
($descr,$inst_code,$lasttime)=($1,$2,$3); |
| |
} else { |
| |
($descr,$lasttime) = split(/\:/,$value); |
| |
} |
| |
if ($lasttime<$since) { next; } |
| |
if ($description eq '.') { |
| |
$qresult.=$key.'='.$descr.':'.$inst_code.'&'; |
| |
} else { |
| |
my $unescapeVal = &unescape($descr); |
| |
if (eval('$unescapeVal=~/\Q$description\E/i')) { |
| |
$qresult.=$key.'='.$descr.':'.$inst_code.'&'; |
| |
} |
| |
} |
| |
} |
| |
if (untie(%hash)) { |
| |
chop($qresult); |
| |
print $client "$qresult\n"; |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." untie(GDBM) Failed ". |
| |
"while attempting courseiddump\n"; |
| |
} |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." tie(GDBM) Failed ". |
| |
"while attempting courseiddump\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ----------------------------------------------------------------------- idput |
| |
} elsif ($userinput =~ /^idput/) { |
| |
if(isClient) { |
| |
my ($cmd,$udom,$what)=split(/:/,$userinput); |
| |
chomp($what); |
| |
$udom=~s/\W//g; |
| |
my $proname="$perlvar{'lonUsersDir'}/$udom/ids"; |
| |
my $now=time; |
| |
my @pairs=split(/\&/,$what); |
| |
my %hash; |
| |
if (tie(%hash,'GDBM_File',"$proname.db",&GDBM_WRCREAT(),0640)) { |
| |
{ |
| |
my $hfh; |
| |
if ($hfh=IO::File->new(">>$proname.hist")) { |
| |
print $hfh "P:$now:$what\n"; |
| |
} |
| |
} |
| |
foreach my $pair (@pairs) { |
| |
my ($key,$value)=split(/=/,$pair); |
| |
$hash{$key}=$value; |
| |
} |
| |
if (untie(%hash)) { |
| |
print $client "ok\n"; |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." untie(GDBM) Failed ". |
| |
"while attempting idput\n"; |
| |
} |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." tie(GDBM) Failed ". |
| |
"while attempting idput\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ----------------------------------------------------------------------- idget |
| |
} elsif ($userinput =~ /^idget/) { |
| |
if(isClient) { |
| |
my ($cmd,$udom,$what)=split(/:/,$userinput); |
| |
chomp($what); |
| |
$udom=~s/\W//g; |
| |
my $proname="$perlvar{'lonUsersDir'}/$udom/ids"; |
| |
my @queries=split(/\&/,$what); |
| |
my $qresult=''; |
| |
my %hash; |
| |
if (tie(%hash,'GDBM_File',"$proname.db",&GDBM_READER(),0640)) { |
| |
for (my $i=0;$i<=$#queries;$i++) { |
| |
$qresult.="$hash{$queries[$i]}&"; |
| |
} |
| |
if (untie(%hash)) { |
| |
$qresult=~s/\&$//; |
| |
print $client "$qresult\n"; |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." untie(GDBM) Failed ". |
| |
"while attempting idget\n"; |
| |
} |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." tie(GDBM) Failed ". |
| |
"while attempting idget\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ---------------------------------------------------------------------- tmpput |
| |
} elsif ($userinput =~ /^tmpput/) { |
| |
if(isClient) { |
| |
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 $client "error: ".($!+0) |
| |
."IO::File->new Failed ". |
| |
"while attempting tmpput\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
|
| |
# ---------------------------------------------------------------------- tmpget |
| |
} elsif ($userinput =~ /^tmpget/) { |
| |
if(isClient) { |
| |
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 $client "error: ".($!+0) |
| |
."IO::File->new Failed ". |
| |
"while attempting tmpget\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ---------------------------------------------------------------------- tmpdel |
| |
} elsif ($userinput =~ /^tmpdel/) { |
| |
if(isClient) { |
| |
my ($cmd,$id)=split(/:/,$userinput); |
| |
chomp($id); |
| |
$id=~s/\W/\_/g; |
| |
my $execdir=$perlvar{'lonDaemons'}; |
| |
if (unlink("$execdir/tmp/$id.tmp")) { |
| |
print $client "ok\n"; |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
."Unlink tmp Failed ". |
| |
"while attempting tmpdel\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ----------------------------------------- portfolio directory list (portls) |
| |
} elsif ($userinput =~ /^portls/) { |
| |
if(isClient) { |
| |
my ($cmd,$uname,$udom)=split(/:/,$userinput); |
| |
my $udir=propath($udom,$uname).'/userfiles/portfolio'; |
| |
my $dirLine=''; |
| |
my $dirContents=''; |
| |
if (opendir(LSDIR,$udir.'/')){ |
| |
while ($dirLine = readdir(LSDIR)){ |
| |
$dirContents = $dirContents.$dirLine.'<br />'; |
| |
} |
| |
} else { |
| |
$dirContents = "No directory found\n"; |
| |
} |
| |
print $client $dirContents."\n"; |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
} |
| |
# -------------------------------------------------------------------------- ls |
| |
} elsif ($userinput =~ /^ls/) { |
| |
if(isClient) { |
| |
my $obs; |
| |
my $rights; |
| |
my ($cmd,$ulsdir)=split(/:/,$userinput); |
| |
my $ulsout=''; |
| |
my $ulsfn; |
| |
if (-e $ulsdir) { |
| |
if(-d $ulsdir) { |
| |
if (opendir(LSDIR,$ulsdir)) { |
| |
while ($ulsfn=readdir(LSDIR)) { |
| |
undef $obs, $rights; |
| |
my @ulsstats=stat($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)|) { $obs = 1; } |
| |
if($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 { $ulsout.="&0:"; } |
| |
} |
| |
closedir(LSDIR); |
| |
} |
| |
} else { |
| |
my @ulsstats=stat($ulsdir); |
| |
$ulsout.=$ulsfn.'&'.join('&',@ulsstats).':'; |
| |
} |
| |
} else { |
| |
$ulsout='no_such_dir'; |
| |
} |
| |
if ($ulsout eq '') { $ulsout='empty'; } |
| |
print $client "$ulsout\n"; |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ----------------------------------------------------------------- setannounce |
| |
} elsif ($userinput =~ /^setannounce/) { |
| |
if (isClient) { |
| |
my ($cmd,$announcement)=split(/:/,$userinput); |
| |
chomp($announcement); |
| |
$announcement=&unescape($announcement); |
| |
if (my $store=IO::File->new('>'.$perlvar{'lonDocRoot'}. |
| |
'/announcement.txt')) { |
| |
print $store $announcement; |
| |
close $store; |
| |
print $client "ok\n"; |
| |
} else { |
| |
print $client "error: ".($!+0)."\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ------------------------------------------------------------------ Hanging up |
| |
} elsif (($userinput =~ /^exit/) || |
| |
($userinput =~ /^init/)) { # no restrictions. |
| |
&logthis( |
| |
"Client $clientip ($clientname) hanging up: $userinput"); |
| |
print $client "bye\n"; |
| |
$client->shutdown(2); # shutdown the socket forcibly. |
| |
$client->close(); |
| |
return 0; |
| |
|
| |
# ---------------------------------- set current host/domain |
| |
} elsif ($userinput =~ /^sethost:/) { |
| |
if (isClient) { |
| |
print $client &sethost($userinput)."\n"; |
| |
} else { |
| |
print $client "refused\n"; |
| |
} |
| |
#---------------------------------- request file (?) version. |
| |
} elsif ($userinput =~/^version:/) { |
| |
if (isClient) { |
| |
print $client &version($userinput)."\n"; |
| |
} else { |
| |
print $client "refused\n"; |
| |
} |
| |
#------------------------------- is auto-enrollment enabled? |
| |
} elsif ($userinput =~/^autorun:/) { |
| |
if (isClient) { |
| |
my ($cmd,$cdom) = split(/:/,$userinput); |
| |
my $outcome = &localenroll::run($cdom); |
| |
print $client "$outcome\n"; |
| |
} else { |
| |
print $client "0\n"; |
| |
} |
| |
#------------------------------- get official sections (for auto-enrollment). |
| |
} elsif ($userinput =~/^autogetsections:/) { |
| |
if (isClient) { |
| |
my ($cmd,$coursecode,$cdom)=split(/:/,$userinput); |
| |
my @secs = &localenroll::get_sections($coursecode,$cdom); |
| |
my $seclist = &escape(join(':',@secs)); |
| |
print $client "$seclist\n"; |
| |
} else { |
| |
print $client "refused\n"; |
| |
} |
| |
#----------------------- validate owner of new course section (for auto-enrollment). |
| |
} elsif ($userinput =~/^autonewcourse:/) { |
| |
if (isClient) { |
| |
my ($cmd,$inst_course_id,$owner,$cdom)=split(/:/,$userinput); |
| |
my $outcome = &localenroll::new_course($inst_course_id,$owner,$cdom); |
| |
print $client "$outcome\n"; |
| |
} else { |
| |
print $client "refused\n"; |
| |
} |
| |
#-------------- validate course section in schedule of classes (for auto-enrollment). |
| |
} elsif ($userinput =~/^autovalidatecourse:/) { |
| |
if (isClient) { |
| |
my ($cmd,$inst_course_id,$cdom)=split(/:/,$userinput); |
| |
my $outcome=&localenroll::validate_courseID($inst_course_id,$cdom); |
| |
print $client "$outcome\n"; |
| |
} else { |
| |
print $client "refused\n"; |
| |
} |
| |
#--------------------------- create password for new user (for auto-enrollment). |
| |
} elsif ($userinput =~/^autocreatepassword:/) { |
| |
if (isClient) { |
| |
my ($cmd,$authparam,$cdom)=split(/:/,$userinput); |
| |
my ($create_passwd,$authchk); |
| |
($authparam,$create_passwd,$authchk) = &localenroll::create_password($authparam,$cdom); |
| |
print $client &escape($authparam.':'.$create_passwd.':'.$authchk)."\n"; |
| |
} else { |
| |
print $client "refused\n"; |
| |
} |
| |
#--------------------------- read and remove temporary files (for auto-enrollment). |
| |
} elsif ($userinput =~/^autoretrieve:/) { |
| |
if (isClient) { |
| |
my ($cmd,$filename) = split(/:/,$userinput); |
| |
my $source = $perlvar{'lonDaemons'}.'/tmp/'.$filename; |
| |
if ( (-e $source) && ($filename ne '') ) { |
| |
my $reply = ''; |
| |
if (open(my $fh,$source)) { |
| |
while (<$fh>) { |
| |
chomp($_); |
| |
$_ =~ s/^\s+//g; |
| |
$_ =~ s/\s+$//g; |
| |
$reply .= $_; |
| |
} |
| |
close($fh); |
| |
print $client &escape($reply)."\n"; |
| |
# unlink($source); |
| |
} else { |
| |
print $client "error\n"; |
| |
} |
| |
} else { |
| |
print $client "error\n"; |
| |
} |
| |
} else { |
| |
print $client "refused\n"; |
| |
} |
| |
#--------------------- read and retrieve institutional code format (for support form). |
| |
} elsif ($userinput =~/^autoinstcodeformat:/) { |
| |
if (isClient) { |
| |
my $reply; |
| |
my($cmd,$cdom,$course) = split(/:/,$userinput); |
| |
my @pairs = split/\&/,$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 = &hash2str(%codes); |
| |
my $codetitles_str = &array2str(@codetitles); |
| |
my $cat_titles_str = &hash2str(%cat_titles); |
| |
my $cat_order_str = &hash2str(%cat_order); |
| |
print $client $codes_str.':'.$codetitles_str.':'.$cat_titles_str.':'.$cat_order_str."\n"; |
| |
} |
| |
} else { |
| |
print $client "refused\n"; |
| |
} |
| |
# ------------------------------------------------------------- unknown command |
| |
|
| |
} else { |
| |
# unknown command |
| |
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. |
# Convert an error return code from lcpasswd to a string value. |
| # |
# |
|
Line 144 sub catchexception {
|
Line 3035 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 $thisserver died through " |
| ."a crash with this error msg->[$error]</font>"); |
."a crash with this error msg->[$error]</font>"); |
| &logthis('Famous last words: '.$status.' - '.$lastlog); |
&logthis('Famous last words: '.$status.' - '.$lastlog); |
| if ($client) { print $client "error: $error\n"; } |
if ($client) { print $client "error: $error\n"; } |
|
Line 154 sub catchexception {
|
Line 3046 sub catchexception {
|
| } |
} |
| |
|
| sub timeout { |
sub timeout { |
| &logthis("<font color=ref>CRITICAL: TIME OUT ".$$."</font>"); |
&status("Handling Timeout"); |
| |
&logthis("<font color='red'>CRITICAL: TIME OUT ".$$."</font>"); |
| &catchexception('Timeout'); |
&catchexception('Timeout'); |
| } |
} |
| # -------------------------------- Set signal handlers to record abnormal exits |
# -------------------------------- Set signal handlers to record abnormal exits |
|
Line 165 $SIG{__DIE__}=\&catchexception;
|
Line 3058 $SIG{__DIE__}=\&catchexception;
|
| # ---------------------------------- Read loncapa_apache.conf and loncapa.conf |
# ---------------------------------- Read loncapa_apache.conf and loncapa.conf |
| &status("Read loncapa.conf and loncapa_apache.conf"); |
&status("Read loncapa.conf and loncapa_apache.conf"); |
| my $perlvarref=LONCAPA::Configuration::read_conf('loncapa.conf'); |
my $perlvarref=LONCAPA::Configuration::read_conf('loncapa.conf'); |
| my %perlvar=%{$perlvarref}; |
%perlvar=%{$perlvarref}; |
| undef $perlvarref; |
undef $perlvarref; |
| |
|
| # ----------------------------- Make sure this process is running from user=www |
# ----------------------------- Make sure this process is running from user=www |
| my $wwwid=getpwnam('www'); |
my $wwwid=getpwnam('www'); |
| if ($wwwid!=$<) { |
if ($wwwid!=$<) { |
| $emailto="$perlvar{'lonAdmEMail'},$perlvar{'lonSysEMail'}"; |
my $emailto="$perlvar{'lonAdmEMail'},$perlvar{'lonSysEMail'}"; |
| $subj="LON: $currenthostid User ID mismatch"; |
my $subj="LON: $currenthostid User ID mismatch"; |
| system("echo 'User ID mismatch. lond must be run as user www.' |\ |
system("echo 'User ID mismatch. lond must be run as user www.' |\ |
| mailto $emailto -s '$subj' > /dev/null"); |
mailto $emailto -s '$subj' > /dev/null"); |
| exit 1; |
exit 1; |
|
Line 189 if (-e $pidfile) {
|
Line 3082 if (-e $pidfile) {
|
| if (kill 0 => $pide) { die "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") || die "Can't read host file"; |
|
| |
|
| while ($configline=<CONFIG>) { |
|
| my ($id,$domain,$role,$name,$ip)=split(/:/,$configline); |
|
| chomp($ip); $ip=~s/\D+$//; |
|
| $hostid{$ip}=$id; |
|
| $hostdom{$id}=$domain; |
|
| $hostip{$id}=$ip; |
|
| if ($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'}, |
|
Line 218 $server = IO::Socket::INET->new(LocalPor
|
Line 3098 $server = IO::Socket::INET->new(LocalPor
|
| |
|
| # global variables |
# global variables |
| |
|
| $MAX_CLIENTS_PER_CHILD = 50; # 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 $pid = wait; |
&status("Handling child death"); |
| if (defined($children{$pid})) { |
my $pid; |
| &logthis("Child $pid died"); |
do { |
| $children --; |
$pid = waitpid(-1,&WNOHANG()); |
| delete $children{$pid}; |
if (defined($children{$pid})) { |
| } else { |
&logthis("Child $pid died"); |
| &logthis("Unknown 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 |
&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; |
| &logthis("Free socket: ".shutdown($server,2)); # free up socket |
&logthis("Free socket: ".shutdown($server,2)); # free up socket |
| &logthis("<font color=red>CRITICAL: Restarting</font>"); |
&logthis("<font color='red'>CRITICAL: Restarting</font>"); |
| unlink("$execdir/logs/lond.pid"); |
|
| 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 |
| } |
} |
| |
|
| |
# |
| |
# Kill off hashes that describe the host table prior to re-reading it. |
| |
# Hashes affected are: |
| |
# %hostid, %hostdom %hostip %hostdns. |
| |
# |
| |
sub KillHostHashes { |
| |
foreach my $key (keys %hostid) { |
| |
delete $hostid{$key}; |
| |
} |
| |
foreach my $key (keys %hostdom) { |
| |
delete $hostdom{$key}; |
| |
} |
| |
foreach my $key (keys %hostip) { |
| |
delete $hostip{$key}; |
| |
} |
| |
foreach my $key (keys %hostdns) { |
| |
delete $hostdns{$key}; |
| |
} |
| |
} |
| |
# |
| |
# Read in the host table from file and distribute it into the various hashes: |
| |
# |
| |
# - %hostid - Indexed by IP, the loncapa hostname. |
| |
# - %hostdom - Indexed by loncapa hostname, the domain. |
| |
# - %hostip - Indexed by hostid, the Ip address of the host. |
| |
sub ReadHostTable { |
| |
|
| |
open (CONFIG,"$perlvar{'lonTabDir'}/hosts.tab") || die "Can't read host file"; |
| |
my $myloncapaname = $perlvar{'lonHostID'}; |
| |
Debug("My loncapa name is : $myloncapaname"); |
| |
while (my $configline=<CONFIG>) { |
| |
if (!($configline =~ /^\s*\#/)) { |
| |
my ($id,$domain,$role,$name,$ip)=split(/:/,$configline); |
| |
chomp($ip); $ip=~s/\D+$//; |
| |
$hostid{$ip}=$id; # LonCAPA name of host by IP. |
| |
$hostdom{$id}=$domain; # LonCAPA domain name of host. |
| |
$hostip{$id}=$ip; # IP address of host. |
| |
$hostdns{$name} = $id; # LonCAPA name of host by DNS. |
| |
|
| |
if ($id eq $perlvar{'lonHostID'}) { |
| |
Debug("Found me in the host table: $name"); |
| |
$thisserver=$name; |
| |
} |
| |
} |
| |
} |
| |
close(CONFIG); |
| |
} |
| |
# |
| |
# 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 { |
| |
my $execdir = $perlvar{'lonDaemons'}; |
| |
my $script = $execdir."/apachereload"; |
| |
system($script); |
| |
} |
| |
|
| |
# |
| |
# 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. |
| |
|
| |
|
| |
KillHostHashes; |
| |
ReadHostTable; |
| |
|
| |
foreach my $child (keys %children) { |
| |
my $childip = $children{$child}; |
| |
if(!$hostid{$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 { |
sub checkchildren { |
| |
&status("Checking on the children (sending signals)"); |
| &initnewstatus(); |
&initnewstatus(); |
| &logstatus(); |
&logstatus(); |
| &logthis('Going to check on the children'); |
&logthis('Going to check on the children'); |
| $docdir=$perlvar{'lonDocRoot'}; |
my $docdir=$perlvar{'lonDocRoot'}; |
| foreach (sort keys %children) { |
foreach (sort keys %children) { |
| sleep 1; |
#sleep 1; |
| unless (kill 'USR1' => $_) { |
unless (kill 'USR1' => $_) { |
| &logthis ('Child '.$_.' is dead'); |
&logthis ('Child '.$_.' is dead'); |
| &logstatus($$.' is dead'); |
&logstatus($$.' is dead'); |
| |
delete($children{$_}); |
| } |
} |
| } |
} |
| sleep 5; |
sleep 5; |
| $SIG{ALRM} = sub { die "timeout" }; |
$SIG{ALRM} = sub { Debug("timeout"); |
| |
die "timeout"; }; |
| $SIG{__DIE__} = 'DEFAULT'; |
$SIG{__DIE__} = 'DEFAULT'; |
| |
&status("Checking on the children (waiting for reports)"); |
| foreach (sort keys %children) { |
foreach (sort keys %children) { |
| unless (-e "$docdir/lon-status/londchld/$_.txt") { |
unless (-e "$docdir/lon-status/londchld/$_.txt") { |
| eval { |
eval { |
| alarm(300); |
alarm(300); |
| &logthis('Child '.$_.' did not respond'); |
&logthis('Child '.$_.' did not respond'); |
| kill 9 => $_; |
kill 9 => $_; |
| $emailto="$perlvar{'lonAdmEMail'},$perlvar{'lonSysEMail'}"; |
#$emailto="$perlvar{'lonAdmEMail'},$perlvar{'lonSysEMail'}"; |
| $subj="LON: $currenthostid killed lond process $_"; |
#$subj="LON: $currenthostid killed lond process $_"; |
| my $result=`echo 'Killed lond process $_.' | mailto $emailto -s '$subj' > /dev/null`; |
#my $result=`echo 'Killed lond process $_.' | mailto $emailto -s '$subj' > /dev/null`; |
| $execdir=$perlvar{'lonDaemons'}; |
#$execdir=$perlvar{'lonDaemons'}; |
| $result=`/bin/cp $execdir/logs/lond.log $execdir/logs/lond.log.$_`; |
#$result=`/bin/cp $execdir/logs/lond.log $execdir/logs/lond.log.$_`; |
| |
delete($children{$_}); |
| alarm(0); |
alarm(0); |
| } |
} |
| } |
} |
| } |
} |
| $SIG{ALRM} = 'DEFAULT'; |
$SIG{ALRM} = 'DEFAULT'; |
| $SIG{__DIE__} = \&cathcexception; |
$SIG{__DIE__} = \&catchexception; |
| |
&status("Finished checking children"); |
| |
&logthis('Finished Checking children'); |
| } |
} |
| |
|
| # --------------------------------------------------------------------- Logging |
# --------------------------------------------------------------------- Logging |
|
Line 308 sub Debug {
|
Line 3305 sub Debug {
|
| &logthis($message); |
&logthis($message); |
| } |
} |
| } |
} |
| |
|
| |
# |
| |
# Sub to do replies to client.. this gives a hook for some |
| |
# debug tracing too: |
| |
# Parameters: |
| |
# fd - File open on client. |
| |
# reply - Text to send to client. |
| |
# request - Original request from client. |
| |
# |
| |
sub Reply { |
| |
my ($fd, $reply, $request) = @_; |
| |
print $fd $reply; |
| |
Debug("Request was $request Reply was $reply"); |
| |
|
| |
$Transactions++; |
| |
|
| |
|
| |
} |
| |
|
| |
|
| |
# |
| |
# Sub to report a failure. |
| |
# This function: |
| |
# - 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 |
# ------------------------------------------------------------------ Log status |
| |
|
| sub logstatus { |
sub logstatus { |
| |
&status("Doing logging"); |
| my $docdir=$perlvar{'lonDocRoot'}; |
my $docdir=$perlvar{'lonDocRoot'}; |
| { |
{ |
| my $fh=IO::File->new(">>$docdir/lon-status/londstatus.txt"); |
|
| print $fh $$."\t".$currenthostid."\t".$status."\t".$lastlog."\n"; |
|
| $fh->close(); |
|
| } |
|
| { |
|
| my $fh=IO::File->new(">$docdir/lon-status/londchld/$$.txt"); |
my $fh=IO::File->new(">$docdir/lon-status/londchld/$$.txt"); |
| print $fh $status."\n".$lastlog."\n".time; |
print $fh $status."\n".$lastlog."\n".time."\n$keymode"; |
| $fh->close(); |
$fh->close(); |
| } |
} |
| |
&status("Finished $$.txt"); |
| |
{ |
| |
open(LOG,">>$docdir/lon-status/londstatus.txt"); |
| |
flock(LOG,LOCK_EX); |
| |
print LOG $$."\t".$clientname."\t".$currenthostid."\t" |
| |
.$status."\t".$lastlog."\t $keymode\n"; |
| |
flock(DB,LOCK_UN); |
| |
close(LOG); |
| |
} |
| |
&status("Finished logging"); |
| } |
} |
| |
|
| sub initnewstatus { |
sub initnewstatus { |
|
Line 331 sub initnewstatus {
|
Line 3377 sub initnewstatus {
|
| my $local=localtime($now); |
my $local=localtime($now); |
| print $fh "LOND status $local - parent $$\n\n"; |
print $fh "LOND status $local - parent $$\n\n"; |
| opendir(DIR,"$docdir/lon-status/londchld"); |
opendir(DIR,"$docdir/lon-status/londchld"); |
| while ($filename=readdir(DIR)) { |
while (my $filename=readdir(DIR)) { |
| unlink("$docdir/lon-status/londchld/$filename"); |
unlink("$docdir/lon-status/londchld/$filename"); |
| } |
} |
| closedir(DIR); |
closedir(DIR); |
|
Line 377 sub reconlonc {
|
Line 3423 sub reconlonc {
|
| kill USR1 => $loncpid; |
kill USR1 => $loncpid; |
| } else { |
} else { |
| &logthis( |
&logthis( |
| "<font color=red>CRITICAL: " |
"<font color='red'>CRITICAL: " |
| ."lonc at pid $loncpid not responding, giving up</font>"); |
."lonc at pid $loncpid not responding, giving up</font>"); |
| } |
} |
| } else { |
} else { |
| &logthis('<font color=red>CRITICAL: lonc not running, giving up</font>'); |
&logthis('<font color="red">CRITICAL: lonc not running, giving up</font>'); |
| } |
} |
| } |
} |
| |
|
|
Line 473 sub ishome {
|
Line 3519 sub ishome {
|
| # ======================================================= Continue main program |
# ======================================================= Continue main program |
| # ---------------------------------------------------- Fork once and dissociate |
# ---------------------------------------------------- Fork once and dissociate |
| |
|
| $fpid=fork; |
my $fpid=fork; |
| exit if $fpid; |
exit if $fpid; |
| die "Couldn't fork: $!" unless defined ($fpid); |
die "Couldn't fork: $!" unless defined ($fpid); |
| |
|
|
Line 481 POSIX::setsid() or die "Can't start new
|
Line 3527 POSIX::setsid() or die "Can't start new
|
| |
|
| # ------------------------------------------------------- Write our PID on disk |
# ------------------------------------------------------- Write our PID on disk |
| |
|
| $execdir=$perlvar{'lonDaemons'}; |
my $execdir=$perlvar{'lonDaemons'}; |
| open (PIDSAVE,">$execdir/logs/lond.pid"); |
open (PIDSAVE,">$execdir/logs/lond.pid"); |
| print PIDSAVE "$$\n"; |
print PIDSAVE "$$\n"; |
| close(PIDSAVE); |
close(PIDSAVE); |
| &logthis("<font color=red>CRITICAL: ---------- Starting ----------</font>"); |
&logthis("<font color='red'>CRITICAL: ---------- Starting ----------</font>"); |
| &status('Starting'); |
&status('Starting'); |
| |
|
| |
|
|
Line 497 $SIG{CHLD} = \&REAPER;
|
Line 3543 $SIG{CHLD} = \&REAPER;
|
| $SIG{INT} = $SIG{TERM} = \&HUNTSMAN; |
$SIG{INT} = $SIG{TERM} = \&HUNTSMAN; |
| $SIG{HUP} = \&HUPSMAN; |
$SIG{HUP} = \&HUPSMAN; |
| $SIG{USR1} = \&checkchildren; |
$SIG{USR1} = \&checkchildren; |
| |
$SIG{USR2} = \&UpdateHosts; |
| |
|
| |
# Read the host hashes: |
| |
|
| |
ReadHostTable; |
| |
|
| # -------------------------------------------------------------- |
# -------------------------------------------------------------- |
| # Accept connections. When a connection comes in, it is validated |
# Accept connections. When a connection comes in, it is validated |
|
Line 506 $SIG{USR1} = \&checkchildren;
|
Line 3555 $SIG{USR1} = \&checkchildren;
|
| # along the connection. |
# along the connection. |
| |
|
| while (1) { |
while (1) { |
| |
&status('Starting accept'); |
| $client = $server->accept() or next; |
$client = $server->accept() or next; |
| |
&status('Accepted '.$client.' off to spawn'); |
| make_new_child($client); |
make_new_child($client); |
| |
&status('Finished spawning'); |
| } |
} |
| |
|
| sub make_new_child { |
sub make_new_child { |
| my $client; |
|
| my $pid; |
my $pid; |
| my $cipher; |
# my $cipher; # Now global |
| my $sigset; |
my $sigset; |
| |
|
| $client = shift; |
$client = shift; |
| &logthis("Attempting to start child"); |
&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 die "Can't block SIGINT for fork: $!\n"; |
or die "Can't block SIGINT for fork: $!\n"; |
| |
|
| die "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"); |
| |
$clientdns = gethostbyaddr($iaddr, AF_INET); |
| |
Debug("Connected with $clientdns by name"); |
| |
} 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 die "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); |
&status('Started child '.$pid); |
| 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{USR1}= \&logstatus; |
| $SIG{ALRM}= \&timeout; |
$SIG{ALRM}= \&timeout; |
| $lastlog='Forked '; |
$lastlog='Forked '; |
|
Line 545 sub make_new_child {
|
Line 3623 sub make_new_child {
|
| sigprocmask(SIG_UNBLOCK, $sigset) |
sigprocmask(SIG_UNBLOCK, $sigset) |
| or die "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 |
#---------------------------------------------------- kerberos 5 initialization |
| &Authen::Krb5::init_context(); |
&Authen::Krb5::init_context(); |
| &Authen::Krb5::init_ets(); |
&Authen::Krb5::init_ets(); |
| |
|
| &status('Accepted connection'); |
&status('Accepted connection'); |
| # ============================================================================= |
# ============================================================================= |
| # do something with the connection |
# do something with the connection |
| # ----------------------------------------------------------------------------- |
# ----------------------------------------------------------------------------- |
| $client->sockopt(SO_KEEPALIVE, 1);# Enable monitoring of |
# see if we know client and 'check' for spoof IP by ineffective challenge |
| # connection liveness. |
|
| # see if we know client and check for spoof IP by challenge |
|
| my $caller = getpeername($client); |
|
| my ($port,$iaddr)=unpack_sockaddr_in($caller); |
|
| my $clientip=inet_ntoa($iaddr); |
|
| my $clientrec=($hostid{$clientip} ne undef); |
|
| &logthis( |
|
| "<font color=yellow>INFO: Connection, $clientip ($hostid{$clientip})</font>" |
|
| ); |
|
| &status("Connecting $clientip ($hostid{$clientip})"); |
|
| my $clientok; |
|
| if ($clientrec) { |
|
| &status("Waiting for init from $clientip ($hostid{$clientip})"); |
|
| my $remotereq=<$client>; |
|
| $remotereq=~s/[^\w:]//g; |
|
| if ($remotereq =~ /^init/) { |
|
| &sethost("sethost:$perlvar{'lonHostID'}"); |
|
| my $challenge="$$".time; |
|
| print $client "$challenge\n"; |
|
| &status( |
|
| "Waiting for challenge reply from $clientip ($hostid{$clientip})"); |
|
| $remotereq=<$client>; |
|
| $remotereq=~s/\W//g; |
|
| if ($challenge eq $remotereq) { |
|
| $clientok=1; |
|
| print $client "ok\n"; |
|
| } else { |
|
| &logthis( |
|
| "<font color=blue>WARNING: $clientip did not reply challenge</font>"); |
|
| &status('No challenge reply '.$clientip); |
|
| } |
|
| } else { |
|
| &logthis( |
|
| "<font color=blue>WARNING: " |
|
| ."$clientip failed to initialize: >$remotereq< </font>"); |
|
| &status('No init '.$clientip); |
|
| } |
|
| } 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 |
|
| |
|
| foreach my $id (keys(%hostip)) { |
ReadManagerTable; # May also be a manager!! |
| if ($hostip{$id} ne $clientip || |
|
| $hostip{$currenthostid} eq $clientip) { |
my $clientrec=($hostid{$clientip} ne undef); |
| # no need to try to do recon's to myself |
my $ismanager=($managers{$clientip} ne undef); |
| next; |
$clientname = "[unknonwn]"; |
| |
if($clientrec) { # Establish client type. |
| |
$ConnectionType = "client"; |
| |
$clientname = $hostid{$clientip}; |
| |
if($ismanager) { |
| |
$ConnectionType = "both"; |
| |
} |
| |
} else { |
| |
$ConnectionType = "manager"; |
| |
$clientname = $managers{$clientip}; |
| |
} |
| |
my $clientok; |
| |
|
| |
if ($clientrec || $ismanager) { |
| |
&status("Waiting for init from $clientip $clientname"); |
| |
&logthis('<font color="yellow">INFO: Connection, '. |
| |
$clientip. |
| |
" ($clientname) connection type = $ConnectionType </font>" ); |
| |
&status("Connecting $clientip ($clientname))"); |
| |
my $remotereq=<$client>; |
| |
chomp($remotereq); |
| |
Debug("Got init: $remotereq"); |
| |
my $inikeyword = split(/:/, $remotereq); |
| |
if ($remotereq =~ /^init/) { |
| |
&sethost("sethost:$perlvar{'lonHostID'}"); |
| |
# |
| |
# If the remote is attempting a local init... give that a try: |
| |
# |
| |
my ($i, $inittype) = split(/:/, $remotereq); |
| |
|
| |
# If the connection type is ssl, but I didn't get my |
| |
# certificate files yet, then I'll drop back to |
| |
# insecure (if allowed). |
| |
|
| |
if($inittype eq "ssl") { |
| |
my ($ca, $cert) = lonssl::CertificateFile; |
| |
my $kfile = lonssl::KeyFile; |
| |
if((!$ca) || |
| |
(!$cert) || |
| |
(!$kfile)) { |
| |
$inittype = ""; # This forces insecure attempt. |
| |
&logthis("<font color=\"blue\"> Certificates not " |
| |
."installed -- trying insecure auth</font>"); |
| } |
} |
| &reconlonc("$perlvar{'lonSockDir'}/$id"); |
else { # SSL certificates are in place so |
| |
} # Leave the inittype alone. |
| } |
} |
| &logthis("<font color=green>Established connection: $hostid{$clientip}</font>"); |
|
| &status('Will listen to '.$hostid{$clientip}); |
|
| # ------------------------------------------------------------ Process requests |
|
| while (my $userinput=<$client>) { |
|
| chomp($userinput); |
|
| Debug("Request = $userinput\n"); |
|
| &status('Processing '.$hostid{$clientip}.': '.$userinput); |
|
| my $wasenc=0; |
|
| alarm(120); |
|
| # ------------------------------------------------------------ See if encrypted |
|
| if ($userinput =~ /^enc/) { |
|
| if ($cipher) { |
|
| my ($cmd,$cmdlength,$encinput)=split(/:/,$userinput); |
|
| $userinput=''; |
|
| for (my $encidx=0;$encidx<length($encinput);$encidx+=16) { |
|
| $userinput.= |
|
| $cipher->decrypt( |
|
| pack("H16",substr($encinput,$encidx,16)) |
|
| ); |
|
| } |
|
| $userinput=substr($userinput,0,$cmdlength); |
|
| $wasenc=1; |
|
| } |
|
| } |
|
| |
|
| # ------------------------------------------------------------- Normal commands |
|
| # ------------------------------------------------------------------------ ping |
|
| if ($userinput =~ /^ping/) { |
|
| print $client "$currenthostid\n"; |
|
| # ------------------------------------------------------------------------ pong |
|
| } elsif ($userinput =~ /^pong/) { |
|
| $reply=reply("ping",$hostid{$clientip}); |
|
| print $client "$currenthostid:$reply\n"; |
|
| # ------------------------------------------------------------------------ ekey |
|
| } elsif ($userinput =~ /^ekey/) { |
|
| my $buildkey=time.$$.int(rand 100000); |
|
| $buildkey=~tr/1-6/A-F/; |
|
| $buildkey=int(rand 100000).$buildkey.int(rand 100000); |
|
| my $key=$currenthostid.$hostid{$clientip}; |
|
| $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; |
|
| print $client "$buildkey\n"; |
|
| # ------------------------------------------------------------------------ load |
|
| } elsif ($userinput =~ /^load/) { |
|
| my $loadavg; |
|
| { |
|
| my $loadfile=IO::File->new('/proc/loadavg'); |
|
| $loadavg=<$loadfile>; |
|
| } |
|
| $loadavg =~ s/\s.*//g; |
|
| my $loadpercent=100*$loadavg/$perlvar{'lonLoadLim'}; |
|
| print $client "$loadpercent\n"; |
|
| # ----------------------------------------------------------------- currentauth |
|
| } elsif ($userinput =~ /^currentauth/) { |
|
| if ($wasenc==1) { |
|
| my ($cmd,$udom,$uname)=split(/:/,$userinput); |
|
| my $result = GetAuthType($udom, $uname); |
|
| if($result eq "nouser") { |
|
| print $client "unknown_user\n"; |
|
| } |
|
| else { |
|
| print $client "$result\n" |
|
| } |
|
| } else { |
|
| print $client "refused\n"; |
|
| } |
|
| # ------------------------------------------------------------------------ auth |
|
| } elsif ($userinput =~ /^auth/) { |
|
| if ($wasenc==1) { |
|
| my ($cmd,$udom,$uname,$upass)=split(/:/,$userinput); |
|
| chomp($upass); |
|
| $upass=unescape($upass); |
|
| my $proname=propath($udom,$uname); |
|
| my $passfilename="$proname/passwd"; |
|
| if (-e $passfilename) { |
|
| my $pf = IO::File->new($passfilename); |
|
| my $realpasswd=<$pf>; |
|
| chomp($realpasswd); |
|
| my ($howpwd,$contentpwd)=split(/:/,$realpasswd); |
|
| my $pwdcorrect=0; |
|
| if ($howpwd eq 'internal') { |
|
| &Debug("Internal auth"); |
|
| $pwdcorrect= |
|
| (crypt($upass,$contentpwd) eq $contentpwd); |
|
| } elsif ($howpwd eq 'unix') { |
|
| &Debug("Unix auth"); |
|
| if((getpwnam($uname))[1] eq "") { #no such user! |
|
| $pwdcorrect = 0; |
|
| } else { |
|
| $contentpwd=(getpwnam($uname))[1]; |
|
| my $pwauth_path="/usr/local/sbin/pwauth"; |
|
| unless ($contentpwd eq 'x') { |
|
| $pwdcorrect= |
|
| (crypt($upass,$contentpwd) eq |
|
| $contentpwd); |
|
| } |
|
| |
|
| elsif (-e $pwauth_path) { |
|
| open PWAUTH, "|$pwauth_path" or |
|
| die "Cannot invoke authentication"; |
|
| print PWAUTH "$uname\n$upass\n"; |
|
| close PWAUTH; |
|
| $pwdcorrect=!$?; |
|
| } |
|
| } |
|
| } elsif ($howpwd eq 'krb4') { |
|
| $null=pack("C",0); |
|
| unless ($upass=~/$null/) { |
|
| my $krb4_error = &Authen::Krb4::get_pw_in_tkt |
|
| ($uname,"",$contentpwd,'krbtgt', |
|
| $contentpwd,1,$upass); |
|
| if (!$krb4_error) { |
|
| $pwdcorrect = 1; |
|
| } else { |
|
| $pwdcorrect=0; |
|
| # log error if it is not a bad password |
|
| if ($krb4_error != 62) { |
|
| &logthis('krb4:'.$uname.','.$contentpwd.','. |
|
| &Authen::Krb4::get_err_txt($Authen::Krb4::error)); |
|
| } |
|
| } |
|
| } |
|
| } elsif ($howpwd eq 'krb5') { |
|
| $null=pack("C",0); |
|
| unless ($upass=~/$null/) { |
|
| my $krbclient=&Authen::Krb5::parse_name($uname.'@'.$contentpwd); |
|
| my $krbservice="krbtgt/".$contentpwd."\@".$contentpwd; |
|
| my $krbserver=&Authen::Krb5::parse_name($krbservice); |
|
| my $credentials=&Authen::Krb5::cc_default(); |
|
| $credentials->initialize($krbclient); |
|
| my $krbreturn = |
|
| &Authen::Krb5::get_in_tkt_with_password( |
|
| $krbclient,$krbserver,$upass,$credentials); |
|
| # unless ($krbreturn) { |
|
| # &logthis("Krb5 Error: ". |
|
| # &Authen::Krb5::error()); |
|
| # } |
|
| $pwdcorrect = ($krbreturn == 1); |
|
| } else { $pwdcorrect=0; } |
|
| } elsif ($howpwd eq 'localauth') { |
|
| $pwdcorrect=&localauth::localauth($uname,$upass, |
|
| $contentpwd); |
|
| } |
|
| if ($pwdcorrect) { |
|
| print $client "authorized\n"; |
|
| } else { |
|
| print $client "non_authorized\n"; |
|
| } |
|
| } else { |
|
| print $client "unknown_user\n"; |
|
| } |
|
| } else { |
|
| print $client "refused\n"; |
|
| } |
|
| # ---------------------------------------------------------------------- passwd |
|
| } elsif ($userinput =~ /^passwd/) { |
|
| if ($wasenc==1) { |
|
| my |
|
| ($cmd,$udom,$uname,$upass,$npass)=split(/:/,$userinput); |
|
| chomp($npass); |
|
| $upass=&unescape($upass); |
|
| $npass=&unescape($npass); |
|
| &Debug("Trying to change password for $uname"); |
|
| my $proname=propath($udom,$uname); |
|
| my $passfilename="$proname/passwd"; |
|
| if (-e $passfilename) { |
|
| my $realpasswd; |
|
| { my $pf = IO::File->new($passfilename); |
|
| $realpasswd=<$pf>; } |
|
| chomp($realpasswd); |
|
| my ($howpwd,$contentpwd)=split(/:/,$realpasswd); |
|
| if ($howpwd eq 'internal') { |
|
| &Debug("internal auth"); |
|
| if (crypt($upass,$contentpwd) eq $contentpwd) { |
|
| my $salt=time; |
|
| $salt=substr($salt,6,2); |
|
| my $ncpass=crypt($npass,$salt); |
|
| { my $pf = IO::File->new(">$passfilename"); |
|
| print $pf "internal:$ncpass\n"; } |
|
| &logthis("Result of password change for $uname: pwchange_success"); |
|
| print $client "ok\n"; |
|
| } else { |
|
| print $client "non_authorized\n"; |
|
| } |
|
| } elsif ($howpwd eq 'unix') { |
|
| # Unix means we have to access /etc/password |
|
| # one way or another. |
|
| # First: Make sure the current password is |
|
| # correct |
|
| &Debug("auth is unix"); |
|
| $contentpwd=(getpwnam($uname))[1]; |
|
| my $pwdcorrect = "0"; |
|
| my $pwauth_path="/usr/local/sbin/pwauth"; |
|
| unless ($contentpwd eq 'x') { |
|
| $pwdcorrect= |
|
| (crypt($upass,$contentpwd) eq $contentpwd); |
|
| } elsif (-e $pwauth_path) { |
|
| open PWAUTH, "|$pwauth_path" or |
|
| die "Cannot invoke authentication"; |
|
| print PWAUTH "$uname\n$upass\n"; |
|
| close PWAUTH; |
|
| &Debug("exited pwauth with $? ($uname,$upass) "); |
|
| $pwdcorrect=($? == 0); |
|
| } |
|
| if ($pwdcorrect) { |
|
| my $execdir=$perlvar{'lonDaemons'}; |
|
| &Debug("Opening lcpasswd pipeline"); |
|
| my $pf = IO::File->new("|$execdir/lcpasswd > /home/www/lcpasswd.log"); |
|
| print $pf "$uname\n$npass\n$npass\n"; |
|
| close $pf; |
|
| my $err = $?; |
|
| my $result = ($err>0 ? 'pwchange_failure' |
|
| : 'ok'); |
|
| &logthis("Result of password change for $uname: ". |
|
| &lcpasswdstrerror($?)); |
|
| print $client "$result\n"; |
|
| } else { |
|
| print $client "non_authorized\n"; |
|
| } |
|
| } else { |
|
| print $client "auth_mode_error\n"; |
|
| } |
|
| } else { |
|
| print $client "unknown_user\n"; |
|
| } |
|
| } else { |
|
| print $client "refused\n"; |
|
| } |
|
| # -------------------------------------------------------------------- makeuser |
|
| } elsif ($userinput =~ /^makeuser/) { |
|
| &Debug("Make user received"); |
|
| my $oldumask=umask(0077); |
|
| if ($wasenc==1) { |
|
| my |
|
| ($cmd,$udom,$uname,$umode,$npass)=split(/:/,$userinput); |
|
| &Debug("cmd =".$cmd." $udom =".$udom. |
|
| " uname=".$uname); |
|
| chomp($npass); |
|
| $npass=&unescape($npass); |
|
| my $proname=propath($udom,$uname); |
|
| my $passfilename="$proname/passwd"; |
|
| &Debug("Password file created will be:". |
|
| $passfilename); |
|
| if (-e $passfilename) { |
|
| print $client "already_exists\n"; |
|
| } elsif ($udom ne $currentdomainid) { |
|
| print $client "not_right_domain\n"; |
|
| } else { |
|
| @fpparts=split(/\//,$proname); |
|
| $fpnow=$fpparts[0].'/'.$fpparts[1].'/'.$fpparts[2]; |
|
| $fperror=''; |
|
| for ($i=3;$i<=$#fpparts;$i++) { |
|
| $fpnow.='/'.$fpparts[$i]; |
|
| unless (-e $fpnow) { |
|
| unless (mkdir($fpnow,0777)) { |
|
| $fperror="error: ".($!+0) |
|
| ." mkdir failed while attempting " |
|
| ."makeuser\n"; |
|
| } |
|
| } |
|
| } |
|
| unless ($fperror) { |
|
| my $result=&make_passwd_file($uname, $umode,$npass, |
|
| $passfilename); |
|
| print $client $result; |
|
| } else { |
|
| print $client "$fperror\n"; |
|
| } |
|
| } |
|
| } else { |
|
| print $client "refused\n"; |
|
| } |
|
| umask($oldumask); |
|
| # -------------------------------------------------------------- changeuserauth |
|
| } elsif ($userinput =~ /^changeuserauth/) { |
|
| &Debug("Changing authorization"); |
|
| if ($wasenc==1) { |
|
| my |
|
| ($cmd,$udom,$uname,$umode,$npass)=split(/:/,$userinput); |
|
| chomp($npass); |
|
| &Debug("cmd = ".$cmd." domain= ".$udom. |
|
| "uname =".$uname." umode= ".$umode); |
|
| $npass=&unescape($npass); |
|
| my $proname=&propath($udom,$uname); |
|
| my $passfilename="$proname/passwd"; |
|
| if ($udom ne $currentdomainid) { |
|
| print $client "not_right_domain\n"; |
|
| } else { |
|
| my $result=&make_passwd_file($uname, $umode,$npass, |
|
| $passfilename); |
|
| print $client $result; |
|
| } |
|
| } else { |
|
| print $client "refused\n"; |
|
| } |
|
| # ------------------------------------------------------------------------ home |
|
| } elsif ($userinput =~ /^home/) { |
|
| my ($cmd,$udom,$uname)=split(/:/,$userinput); |
|
| chomp($uname); |
|
| my $proname=propath($udom,$uname); |
|
| if (-e $proname) { |
|
| print $client "found\n"; |
|
| } else { |
|
| print $client "not_found\n"; |
|
| } |
|
| # ---------------------------------------------------------------------- update |
|
| } elsif ($userinput =~ /^update/) { |
|
| my ($cmd,$fname)=split(/:/,$userinput); |
|
| my $ownership=ishome($fname); |
|
| if ($ownership eq 'not_owner') { |
|
| if (-e $fname) { |
|
| my ($dev,$ino,$mode,$nlink, |
|
| $uid,$gid,$rdev,$size, |
|
| $atime,$mtime,$ctime, |
|
| $blksize,$blocks)=stat($fname); |
|
| $now=time; |
|
| $since=$now-$atime; |
|
| if ($since>$perlvar{'lonExpire'}) { |
|
| $reply= |
|
| reply("unsub:$fname","$hostid{$clientip}"); |
|
| unlink("$fname"); |
|
| } else { |
|
| my $transname="$fname.in.transfer"; |
|
| my $remoteurl= |
|
| reply("sub:$fname","$hostid{$clientip}"); |
|
| my $response; |
|
| { |
|
| my $ua=new LWP::UserAgent; |
|
| my $request=new HTTP::Request('GET',"$remoteurl"); |
|
| $response=$ua->request($request,$transname); |
|
| } |
|
| if ($response->is_error()) { |
|
| unlink($transname); |
|
| my $message=$response->status_line; |
|
| &logthis( |
|
| "LWP GET: $message for $fname ($remoteurl)"); |
|
| } else { |
|
| if ($remoteurl!~/\.meta$/) { |
|
| 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'); |
|
| } |
|
| } |
|
| rename($transname,$fname); |
|
| } |
|
| } |
|
| print $client "ok\n"; |
|
| } else { |
|
| print $client "not_found\n"; |
|
| } |
|
| } else { |
|
| print $client "rejected\n"; |
|
| } |
|
| # -------------------------------------- fetch a user file from a remote server |
|
| } elsif ($userinput =~ /^fetchuserfile/) { |
|
| my ($cmd,$fname)=split(/:/,$userinput); |
|
| my ($udom,$uname,$ufile)=split(/\//,$fname); |
|
| my $udir=propath($udom,$uname).'/userfiles'; |
|
| unless (-e $udir) { mkdir($udir,0770); } |
|
| if (-e $udir) { |
|
| $ufile=~s/^[\.\~]+//; |
|
| $ufile=~s/\///g; |
|
| my $transname=$udir.'/'.$ufile; |
|
| my $remoteurl='http://'.$clientip.'/userfiles/'.$fname; |
|
| my $response; |
|
| { |
|
| my $ua=new LWP::UserAgent; |
|
| my $request=new HTTP::Request('GET',"$remoteurl"); |
|
| $response=$ua->request($request,$transname); |
|
| } |
|
| if ($response->is_error()) { |
|
| unlink($transname); |
|
| my $message=$response->status_line; |
|
| &logthis( |
|
| "LWP GET: $message for $fname ($remoteurl)"); |
|
| print $client "failed\n"; |
|
| } else { |
|
| print $client "ok\n"; |
|
| } |
|
| } else { |
|
| print $client "not_home\n"; |
|
| } |
|
| # ------------------------------------------ authenticate access to a user file |
|
| } elsif ($userinput =~ /^tokenauthuserfile/) { |
|
| my ($cmd,$fname,$session)=split(/:/,$userinput); |
|
| chomp($session); |
|
| $reply='non_auth'; |
|
| if (open(ENVIN,$perlvar{'lonIDsDir'}.'/'. |
|
| $session.'.id')) { |
|
| while ($line=<ENVIN>) { |
|
| if ($line=~/userfile\.$fname\=/) { $reply='ok'; } |
|
| } |
|
| close(ENVIN); |
|
| print $client $reply."\n"; |
|
| } else { |
|
| print $client "invalid_token\n"; |
|
| } |
|
| # ----------------------------------------------------------------- unsubscribe |
|
| } elsif ($userinput =~ /^unsub/) { |
|
| my ($cmd,$fname)=split(/:/,$userinput); |
|
| if (-e $fname) { |
|
| print $client &unsub($client,$fname,$clientip); |
|
| } else { |
|
| print $client "not_found\n"; |
|
| } |
|
| # ------------------------------------------------------------------- subscribe |
|
| } elsif ($userinput =~ /^sub/) { |
|
| print $client &subscribe($userinput,$clientip); |
|
| # ------------------------------------------------------------- current version |
|
| } elsif ($userinput =~ /^currentversion/) { |
|
| my ($cmd,$fname)=split(/:/,$userinput); |
|
| print $client ¤tversion($fname)."\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: ".($!+0) |
|
| ." IO::File->new Failed " |
|
| ."while attempting log\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; |
|
| unless ($namespace=~/^nohist\_/) { |
|
| 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: ".($!+0) |
|
| ." untie(GDBM) failed ". |
|
| "while attempting put\n"; |
|
| } |
|
| } else { |
|
| print $client "error: ".($!) |
|
| ." tie(GDBM) Failed ". |
|
| "while attempting put\n"; |
|
| } |
|
| } else { |
|
| print $client "refused\n"; |
|
| } |
|
| # -------------------------------------------------------------------- rolesput |
|
| } elsif ($userinput =~ /^rolesput/) { |
|
| &Debug("rolesput"); |
|
| if ($wasenc==1) { |
|
| my ($cmd,$exedom,$exeuser,$udom,$uname,$what) |
|
| =split(/:/,$userinput); |
|
| &Debug("cmd = ".$cmd." exedom= ".$exedom. |
|
| "user = ".$exeuser." udom=".$udom. |
|
| "what = ".$what); |
|
| 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); |
|
| &ManagePermissions($key, $udom, $uname, |
|
| &GetAuthType( $udom, |
|
| $uname)); |
|
| $hash{$key}=$value; |
|
| |
|
| } |
|
| if (untie(%hash)) { |
|
| print $client "ok\n"; |
|
| } else { |
|
| print $client "error: ".($!+0) |
|
| ." untie(GDBM) Failed ". |
|
| "while attempting rolesput\n"; |
|
| } |
|
| } else { |
|
| print $client "error: ".($!+0) |
|
| ." tie(GDBM) Failed ". |
|
| "while attempting rolesput\n"; |
|
| } |
|
| } else { |
|
| print $client "refused\n"; |
|
| } |
|
| # -------------------------------------------------------------------- rolesdel |
|
| } elsif ($userinput =~ /^rolesdel/) { |
|
| &Debug("rolesdel"); |
|
| if ($wasenc==1) { |
|
| my ($cmd,$exedom,$exeuser,$udom,$uname,$what) |
|
| =split(/:/,$userinput); |
|
| &Debug("cmd = ".$cmd." exedom= ".$exedom. |
|
| "user = ".$exeuser." udom=".$udom. |
|
| "what = ".$what); |
|
| 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 "D:$now:$exedom:$exeuser:$what\n"; |
|
| } |
|
| } |
|
| my @rolekeys=split(/\&/,$what); |
|
| if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_WRCREAT(),0640)) { |
|
| foreach $key (@rolekeys) { |
|
| delete $hash{$key}; |
|
| |
|
| } |
|
| if (untie(%hash)) { |
|
| print $client "ok\n"; |
|
| } else { |
|
| print $client "error: ".($!+0) |
|
| ." untie(GDBM) Failed ". |
|
| "while attempting rolesdel\n"; |
|
| } |
|
| } else { |
|
| print $client "error: ".($!+0) |
|
| ." tie(GDBM) Failed ". |
|
| "while attempting rolesdel\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: ".($!+0) |
|
| ." untie(GDBM) Failed ". |
|
| "while attempting get\n"; |
|
| } |
|
| } else { |
|
| if ($!+0 == 2) { |
|
| print $client "error:No such file or ". |
|
| "GDBM reported bad block error\n"; |
|
| } else { |
|
| print $client "error: ".($!+0) |
|
| ." tie(GDBM) Failed ". |
|
| "while attempting get\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: ".($!+0) |
|
| ." untie(GDBM) Failed ". |
|
| "while attempting eget\n"; |
|
| } |
|
| } else { |
|
| print $client "error: ".($!+0) |
|
| ." tie(GDBM) Failed ". |
|
| "while attempting eget\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; |
|
| unless ($namespace=~/^nohist\_/) { |
|
| 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: ".($!+0) |
|
| ." untie(GDBM) Failed ". |
|
| "while attempting del\n"; |
|
| } |
|
| } else { |
|
| print $client "error: ".($!+0) |
|
| ." tie(GDBM) Failed ". |
|
| "while attempting del\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: ".($!+0) |
|
| ." untie(GDBM) Failed ". |
|
| "while attempting keys\n"; |
|
| } |
|
| } else { |
|
| print $client "error: ".($!+0) |
|
| ." tie(GDBM) Failed ". |
|
| "while attempting keys\n"; |
|
| } |
|
| # ----------------------------------------------------------------- dumpcurrent |
|
| } elsif ($userinput =~ /^currentdump/) { |
|
| my ($cmd,$udom,$uname,$namespace) |
|
| =split(/:/,$userinput); |
|
| $namespace=~s/\//\_/g; |
|
| $namespace=~s/\W//g; |
|
| my $qresult=''; |
|
| my $proname=propath($udom,$uname); |
|
| if (tie(%hash,'GDBM_File', |
|
| "$proname/$namespace.db", |
|
| &GDBM_READER(),0640)) { |
|
| # 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 %data = (); |
|
| while (my ($key,$value) = each(%hash)) { |
|
| 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(%hash)) { |
|
| while (my ($symb,$param_hash) = each(%data)) { |
|
| while(my ($param,$value) = each (%$param_hash)){ |
|
| next if ($param =~ /^v\./); |
|
| $qresult.=$symb.':'.$param.'='.$value.'&'; |
|
| } |
|
| } |
|
| chop($qresult); |
|
| print $client "$qresult\n"; |
|
| } else { |
|
| print $client "error: ".($!+0) |
|
| ." untie(GDBM) Failed ". |
|
| "while attempting currentdump\n"; |
|
| } |
|
| } else { |
|
| print $client "error: ".($!+0) |
|
| ." tie(GDBM) Failed ". |
|
| "while attempting currentdump\n"; |
|
| } |
|
| # ------------------------------------------------------------------------ dump |
|
| } elsif ($userinput =~ /^dump/) { |
|
| my ($cmd,$udom,$uname,$namespace,$regexp) |
|
| =split(/:/,$userinput); |
|
| $namespace=~s/\//\_/g; |
|
| $namespace=~s/\W//g; |
|
| if (defined($regexp)) { |
|
| $regexp=&unescape($regexp); |
|
| } else { |
|
| $regexp='.'; |
|
| } |
|
| my $qresult=''; |
|
| my $proname=propath($udom,$uname); |
|
| if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER(),0640)) { |
|
| study($regexp); |
|
| while (($key,$value) = each(%hash)) { |
|
| if ($regexp eq '.') { |
|
| $qresult.=$key.'='.$value.'&'; |
|
| } else { |
|
| my $unescapeKey = &unescape($key); |
|
| if (eval('$unescapeKey=~/$regexp/')) { |
|
| $qresult.="$key=$value&"; |
|
| } |
|
| } |
|
| } |
|
| if (untie(%hash)) { |
|
| chop($qresult); |
|
| print $client "$qresult\n"; |
|
| } else { |
|
| print $client "error: ".($!+0) |
|
| ." untie(GDBM) Failed ". |
|
| "while attempting dump\n"; |
|
| } |
|
| } else { |
|
| print $client "error: ".($!+0) |
|
| ." tie(GDBM) Failed ". |
|
| "while attempting dump\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; |
|
| unless ($namespace=~/^nohist\_/) { |
|
| 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; |
|
| } |
|
| $hash{"$version:$rid:timestamp"}=$now; |
|
| $allkeys.='timestamp'; |
|
| $hash{"$version:keys:$rid"}=$allkeys; |
|
| if (untie(%hash)) { |
|
| print $client "ok\n"; |
|
| } else { |
|
| print $client "error: ".($!+0) |
|
| ." untie(GDBM) Failed ". |
|
| "while attempting store\n"; |
|
| } |
|
| } else { |
|
| print $client "error: ".($!+0) |
|
| ." tie(GDBM) Failed ". |
|
| "while attempting store\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: ".($!+0) |
|
| ." untie(GDBM) Failed ". |
|
| "while attempting restore\n"; |
|
| } |
|
| } else { |
|
| print $client "error: ".($!+0) |
|
| ." tie(GDBM) Failed ". |
|
| "while attempting restore\n"; |
|
| } |
|
| # -------------------------------------------------------------------- chatsend |
|
| } elsif ($userinput =~ /^chatsend/) { |
|
| my ($cmd,$cdom,$cnum,$newpost)=split(/\:/,$userinput); |
|
| &chatadd($cdom,$cnum,$newpost); |
|
| print $client "ok\n"; |
|
| # -------------------------------------------------------------------- chatretr |
|
| } elsif ($userinput =~ /^chatretr/) { |
|
| my |
|
| ($cmd,$cdom,$cnum,$udom,$uname)=split(/\:/,$userinput); |
|
| my $reply=''; |
|
| foreach (&getchat($cdom,$cnum,$udom,$uname)) { |
|
| $reply.=&escape($_).':'; |
|
| } |
|
| $reply=~s/\:$//; |
|
| print $client $reply."\n"; |
|
| # ------------------------------------------------------------------- querysend |
|
| } elsif ($userinput =~ /^querysend/) { |
|
| my ($cmd,$query, |
|
| $arg1,$arg2,$arg3)=split(/\:/,$userinput); |
|
| $query=~s/\n*$//g; |
|
| print $client "". |
|
| sqlreply("$hostid{$clientip}\&$query". |
|
| "\&$arg1"."\&$arg2"."\&$arg3")."\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")) { |
|
| $reply=~s/\&/\n/g; |
|
| print $store $reply; |
|
| close $store; |
|
| my $store2=IO::File->new(">$execdir/tmp/$id.end"); |
|
| print $store2 "done\n"; |
|
| close $store2; |
|
| print $client "ok\n"; |
|
| } |
|
| else { |
|
| print $client "error: ".($!+0) |
|
| ." IO::File->new Failed ". |
|
| "while attempting queryreply\n"; |
|
| } |
|
| # ----------------------------------------------------------------- courseidput |
|
| } elsif ($userinput =~ /^courseidput/) { |
|
| my ($cmd,$udom,$what)=split(/:/,$userinput); |
|
| chomp($what); |
|
| $udom=~s/\W//g; |
|
| my $proname= |
|
| "$perlvar{'lonUsersDir'}/$udom/nohist_courseids"; |
|
| my $now=time; |
|
| my @pairs=split(/\&/,$what); |
|
| if (tie(%hash,'GDBM_File',"$proname.db",&GDBM_WRCREAT(),0640)) { |
|
| foreach $pair (@pairs) { |
|
| ($key,$value)=split(/=/,$pair); |
|
| $hash{$key}=$value.':'.$now; |
|
| } |
|
| if (untie(%hash)) { |
|
| print $client "ok\n"; |
|
| } else { |
|
| print $client "error: ".($!+0) |
|
| ." untie(GDBM) Failed ". |
|
| "while attempting courseidput\n"; |
|
| } |
|
| } else { |
|
| print $client "error: ".($!+0) |
|
| ." tie(GDBM) Failed ". |
|
| "while attempting courseidput\n"; |
|
| } |
|
| # ---------------------------------------------------------------- courseiddump |
|
| } elsif ($userinput =~ /^courseiddump/) { |
|
| my ($cmd,$udom,$since,$description) |
|
| =split(/:/,$userinput); |
|
| if (defined($description)) { |
|
| $description=&unescape($description); |
|
| } else { |
|
| $description='.'; |
|
| } |
|
| unless (defined($since)) { $since=0; } |
|
| my $qresult=''; |
|
| my $proname= |
|
| "$perlvar{'lonUsersDir'}/$udom/nohist_courseids"; |
|
| if (tie(%hash,'GDBM_File',"$proname.db",&GDBM_READER(),0640)) { |
|
| while (($key,$value) = each(%hash)) { |
|
| my ($descr,$lasttime)=split(/\:/,$value); |
|
| if ($lasttime<$since) { next; } |
|
| if ($regexp eq '.') { |
|
| $qresult.=$key.'='.$descr.'&'; |
|
| } else { |
|
| my $unescapeVal = &unescape($descr); |
|
| if (eval('$unescapeVal=~/$description/i')) { |
|
| $qresult.="$key=$descr&"; |
|
| } |
|
| } |
|
| } |
|
| if (untie(%hash)) { |
|
| chop($qresult); |
|
| print $client "$qresult\n"; |
|
| } else { |
|
| print $client "error: ".($!+0) |
|
| ." untie(GDBM) Failed ". |
|
| "while attempting courseiddump\n"; |
|
| } |
|
| } else { |
|
| print $client "error: ".($!+0) |
|
| ." tie(GDBM) Failed ". |
|
| "while attempting courseiddump\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: ".($!+0) |
|
| ." untie(GDBM) Failed ". |
|
| "while attempting idput\n"; |
|
| } |
|
| } else { |
|
| print $client "error: ".($!+0) |
|
| ." tie(GDBM) Failed ". |
|
| "while attempting idput\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: ".($!+0) |
|
| ." untie(GDBM) Failed ". |
|
| "while attempting idget\n"; |
|
| } |
|
| } else { |
|
| print $client "error: ".($!+0) |
|
| ." tie(GDBM) Failed ". |
|
| "while attempting idget\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 $client "error: ".($!+0) |
|
| ."IO::File->new Failed ". |
|
| "while attempting tmpput\n"; |
|
| } |
|
| |
|
| # ---------------------------------------------------------------------- tmpget |
if($inittype eq "local") { |
| } elsif ($userinput =~ /^tmpget/) { |
my $key = LocalConnection($client, $remotereq); |
| my ($cmd,$id)=split(/:/,$userinput); |
if($key) { |
| chomp($id); |
Debug("Got local key $key"); |
| $id=~s/\W/\_/g; |
$clientok = 1; |
| my $store; |
my $cipherkey = pack("H32", $key); |
| my $execdir=$perlvar{'lonDaemons'}; |
$cipher = new IDEA($cipherkey); |
| if ($store=IO::File->new("$execdir/tmp/$id.tmp")) { |
print $client "ok:local\n"; |
| my $reply=<$store>; |
&logthis('<font color="green"' |
| print $client "$reply\n"; |
. "Successful local authentication </font>"); |
| close $store; |
$keymode = "local" |
| } |
} else { |
| else { |
Debug("Failed to get local key"); |
| print $client "error: ".($!+0) |
$clientok = 0; |
| ."IO::File->new Failed ". |
shutdown($client, 3); |
| "while attempting tmpget\n"; |
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; |
| |
$clientok = 0; |
| |
|
| |
} |
| |
} |
| |
} else { |
| |
&logthis( |
| |
"<font color='blue'>WARNING: " |
| |
."$clientip failed to initialize: >$remotereq< </font>"); |
| |
&status('No init '.$clientip); |
| |
} |
| |
|
| |
} 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 |
| |
|
| |
foreach my $id (keys(%hostip)) { |
| |
if ($hostip{$id} ne $clientip || |
| |
$hostip{$currenthostid} eq $clientip) { |
| |
# no need to try to do recon's to myself |
| |
next; |
| |
} |
| |
&reconlonc("$perlvar{'lonSockDir'}/$id"); |
| |
} |
| |
&logthis("<font color='green'>Established connection: $clientname</font>"); |
| |
&status('Will listen to '.$clientname); |
| |
# ------------------------------------------------------------ Process requests |
| |
my $keep_going = 1; |
| |
my $user_input; |
| |
while(($user_input = get_request) && $keep_going) { |
| |
alarm(120); |
| |
Debug("Main: Got $user_input\n"); |
| |
$keep_going = &process_request($user_input); |
| |
alarm(0); |
| |
&status('Listening to '.$clientname." ($keymode)"); |
| |
} |
| |
|
| # ---------------------------------------------------------------------- tmpdel |
|
| } elsif ($userinput =~ /^tmpdel/) { |
|
| my ($cmd,$id)=split(/:/,$userinput); |
|
| chomp($id); |
|
| $id=~s/\W/\_/g; |
|
| my $execdir=$perlvar{'lonDaemons'}; |
|
| if (unlink("$execdir/tmp/$id.tmp")) { |
|
| print $client "ok\n"; |
|
| } else { |
|
| print $client "error: ".($!+0) |
|
| ."Unlink tmp Failed ". |
|
| "while attempting tmpdel\n"; |
|
| } |
|
| # -------------------------------------------------------------------------- ls |
|
| } elsif ($userinput =~ /^ls/) { |
|
| my ($cmd,$ulsdir)=split(/:/,$userinput); |
|
| my $ulsout=''; |
|
| my $ulsfn; |
|
| if (-e $ulsdir) { |
|
| if(-d $ulsdir) { |
|
| if (opendir(LSDIR,$ulsdir)) { |
|
| while ($ulsfn=readdir(LSDIR)) { |
|
| my @ulsstats=stat($ulsdir.'/'.$ulsfn); |
|
| $ulsout.=$ulsfn.'&'. |
|
| join('&',@ulsstats).':'; |
|
| } |
|
| closedir(LSDIR); |
|
| } |
|
| } else { |
|
| my @ulsstats=stat($ulsdir); |
|
| $ulsout.=$ulsfn.'&'.join('&',@ulsstats).':'; |
|
| } |
|
| } else { |
|
| $ulsout='no_such_dir'; |
|
| } |
|
| if ($ulsout eq '') { $ulsout='empty'; } |
|
| print $client "$ulsout\n"; |
|
| # ------------------------------------------------------------------ Hanging up |
|
| } elsif (($userinput =~ /^exit/) || |
|
| ($userinput =~ /^init/)) { |
|
| &logthis( |
|
| "Client $clientip ($hostid{$clientip}) hanging up: $userinput"); |
|
| print $client "bye\n"; |
|
| $client->close(); |
|
| last; |
|
| # ------------------------------------------------------------- unknown command |
|
| } elsif ($userinput =~ /^sethost:/) { |
|
| print $client &sethost($userinput)."\n"; |
|
| } elsif ($userinput =~/^version:/) { |
|
| print $client &version($userinput)."\n"; |
|
| } else { |
|
| # unknown command |
|
| print $client "unknown_cmd\n"; |
|
| } |
|
| # -------------------------------------------------------------------- complete |
|
| alarm(0); |
|
| &status('Listening to '.$hostid{$clientip}); |
|
| } |
|
| # --------------------------------------------- client unknown or fishy, refuse |
# --------------------------------------------- client unknown or fishy, refuse |
| } else { |
} else { |
| print $client "refused\n"; |
print $client "refused\n"; |
| $client->close(); |
$client->close(); |
| &logthis("<font color=blue>WARNING: " |
&logthis("<font color='blue'>WARNING: " |
| ."Rejected client $clientip, closing connection</font>"); |
."Rejected client $clientip, closing connection</font>"); |
| } |
} |
| } |
} |
| |
|
| # ============================================================================= |
# ============================================================================= |
| |
|
| &logthis("<font color=red>CRITICAL: " |
&logthis("<font color='red'>CRITICAL: " |
| ."Disconnect from $clientip ($hostid{$clientip})</font>"); |
."Disconnect from $clientip ($clientname)</font>"); |
| |
|
| |
|
| # this exit is VERY important, otherwise the child will become |
# this exit is VERY important, otherwise the child will become |
| # a producer of more and more children, forking yourself into |
# a producer of more and more children, forking yourself into |
| # process death. |
# process death. |
| exit; |
exit; |
| |
|
| } |
} |
| |
|
|
Line 1760 sub make_new_child {
|
Line 3807 sub make_new_child {
|
| # |
# |
| sub ManagePermissions |
sub ManagePermissions |
| { |
{ |
| my $request = shift; |
|
| my $domain = shift; |
|
| my $user = shift; |
|
| my $authtype= shift; |
|
| |
|
| # See if the request is of the form /$domain/_au |
my ($request, $domain, $user, $authtype) = @_; |
| |
|
| |
# See if the request is of the form /$domain/_au |
| if($request =~ /^(\/$domain\/_au)$/) { # It's an author rolesput... |
if($request =~ /^(\/$domain\/_au)$/) { # It's an author rolesput... |
| my $execdir = $perlvar{'lonDaemons'}; |
my $execdir = $perlvar{'lonDaemons'}; |
| my $userhome= "/home/$user" ; |
my $userhome= "/home/$user" ; |
| Debug("system $execdir/lchtmldir $userhome $system $authtype"); |
&logthis("system $execdir/lchtmldir $userhome $user $authtype"); |
| system("$execdir/lchtmldir $userhome $user $authtype"); |
system("$execdir/lchtmldir $userhome $user $authtype"); |
| } |
} |
| } |
} |
|
Line 1781 sub ManagePermissions
|
Line 3825 sub ManagePermissions
|
| # |
# |
| sub GetAuthType |
sub GetAuthType |
| { |
{ |
| my $domain = shift; |
|
| my $user = shift; |
my ($domain, $user) = @_; |
| |
|
| Debug("GetAuthType( $domain, $user ) \n"); |
Debug("GetAuthType( $domain, $user ) \n"); |
| my $proname = &propath($domain, $user); |
my $proname = &propath($domain, $user); |
|
Line 1807 sub GetAuthType
|
Line 3851 sub GetAuthType
|
| } |
} |
| } |
} |
| |
|
| |
# |
| |
# 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) = @_; |
| |
|
| |
|
| |
# 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. |
| |
|
| |
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 $contents = &GetAuthType($domain, $user); |
| |
my ($howpwd, $contentpwd) = split(/:/, $contents); |
| |
|
| |
my $null = pack("C",0); # Used by kerberos auth types. |
| |
|
| |
if ($howpwd ne 'nouser') { |
| |
|
| |
if($howpwd eq "internal") { # Encrypted is in local password file. |
| |
$validated = (crypt($password, $contentpwd) eq $contentpwd); |
| |
} |
| |
elsif ($howpwd eq "unix") { # User is a normal unix user. |
| |
$contentpwd = (getpwnam($user))[1]; |
| |
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. |
| |
if(! ($password =~ /$null/) ) { |
| |
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 { |
| |
$validated = 0; # Password has a match with null. |
| |
} |
| |
} |
| |
elsif ($howpwd eq "krb5") { # User is in kerberos 5 auth. domain. |
| |
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(); |
| |
$credentials->initialize($krbclient); |
| |
my $krbreturn = &Authen::KRb5::get_in_tkt_with_password($krbclient, |
| |
$krbserver, |
| |
$password, |
| |
$credentials); |
| |
$validated = ($krbreturn == 1); |
| |
} |
| |
else { |
| |
$validated = 0; |
| |
} |
| |
} |
| |
elsif ($howpwd eq "localauth") { |
| |
# Authenticate via installation specific authentcation method: |
| |
$validated = &localauth::localauth($user, |
| |
$password, |
| |
$contentpwd); |
| |
} |
| |
else { # Unrecognized auth is also bad. |
| |
$validated = 0; |
| |
} |
| |
} else { |
| |
$validated = 0; |
| |
} |
| |
# |
| |
# $validated has the correct stat of the authentication: |
| |
# |
| |
|
| |
unless ($validated != -3.14159) { |
| |
die "ValidateUser - failed to set the value of validated"; |
| |
} |
| |
return $validated; |
| |
} |
| |
|
| |
|
| sub addline { |
sub addline { |
| my ($fname,$hostid,$ip,$newline)=@_; |
my ($fname,$hostid,$ip,$newline)=@_; |
| my $contents; |
my $contents; |
| my $found=0; |
my $found=0; |
| my $expr='^'.$hostid.':'.$ip.':'; |
my $expr='^'.$hostid.':'.$ip.':'; |
| $expr =~ s/\./\\\./g; |
$expr =~ s/\./\\\./g; |
| |
my $sh; |
| if ($sh=IO::File->new("$fname.subscription")) { |
if ($sh=IO::File->new("$fname.subscription")) { |
| while (my $subline=<$sh>) { |
while (my $subline=<$sh>) { |
| if ($subline !~ /$expr/) {$contents.= $subline;} else {$found=1;} |
if ($subline !~ /$expr/) {$contents.= $subline;} else {$found=1;} |
|
Line 1837 sub getchat {
|
Line 4008 sub getchat {
|
| untie %hash; |
untie %hash; |
| } |
} |
| my @participants=(); |
my @participants=(); |
| $cutoff=time-60; |
my $cutoff=time-60; |
| if (tie(%hash,'GDBM_File',"$proname/nohist_inchatroom.db", |
if (tie(%hash,'GDBM_File',"$proname/nohist_inchatroom.db", |
| &GDBM_WRCREAT(),0640)) { |
&GDBM_WRCREAT(),0640)) { |
| $hash{$uname.':'.$udom}=time; |
$hash{$uname.':'.$udom}=time; |
|
Line 1856 sub chatadd {
|
Line 4027 sub chatadd {
|
| my %hash; |
my %hash; |
| my $proname=&propath($cdom,$cname); |
my $proname=&propath($cdom,$cname); |
| my @entries=(); |
my @entries=(); |
| |
my $time=time; |
| if (tie(%hash,'GDBM_File',"$proname/nohist_chatroom.db", |
if (tie(%hash,'GDBM_File',"$proname/nohist_chatroom.db", |
| &GDBM_WRCREAT(),0640)) { |
&GDBM_WRCREAT(),0640)) { |
| @entries=map { $_.':'.$hash{$_} } sort keys %hash; |
@entries=map { $_.':'.$hash{$_} } sort keys %hash; |
| my $time=time; |
|
| my ($lastid)=($entries[$#entries]=~/^(\w+)\:/); |
my ($lastid)=($entries[$#entries]=~/^(\w+)\:/); |
| my ($thentime,$idnum)=split(/\_/,$lastid); |
my ($thentime,$idnum)=split(/\_/,$lastid); |
| my $newid=$time.'_000000'; |
my $newid=$time.'_000000'; |
|
Line 1879 sub chatadd {
|
Line 4050 sub chatadd {
|
| } |
} |
| untie %hash; |
untie %hash; |
| } |
} |
| |
{ |
| |
my $hfh; |
| |
if ($hfh=IO::File->new(">>$proname/chatroom.log")) { |
| |
print $hfh "$time:".&unescape($newchat)."\n"; |
| |
} |
| |
} |
| } |
} |
| |
|
| sub unsub { |
sub unsub { |
| my ($fname,$clientip)=@_; |
my ($fname,$clientip)=@_; |
| my $result; |
my $result; |
| if (unlink("$fname.$hostid{$clientip}")) { |
my $unsubs = 0; # Number of successful unsubscribes: |
| $result="ok\n"; |
|
| } else { |
|
| $result="not_subscribed\n"; |
# 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") { |
if (-e "$fname.subscription") { |
| my $found=&addline($fname,$hostid{$clientip},$clientip,''); |
my $found=&addline($fname,$clientname,$clientip,''); |
| if ($found) { $result="ok\n"; } |
if ($found) { |
| |
$unsubs++; |
| |
} |
| |
} |
| |
|
| |
# If either or both of these mechanisms succeeded in unsubscribing a |
| |
# resource we can return ok: |
| |
|
| |
if($unsubs) { |
| |
$result = "ok\n"; |
| } else { |
} else { |
| if ($result != "ok\n") { $result="not_subscribed\n"; } |
$result = "not_subscribed\n"; |
| } |
} |
| |
|
| return $result; |
return $result; |
| } |
} |
| |
|
|
Line 1915 sub currentversion {
|
Line 4111 sub currentversion {
|
| } |
} |
| if (-e $fname) { $version=1; } |
if (-e $fname) { $version=1; } |
| if (-e $ulsdir) { |
if (-e $ulsdir) { |
| if(-d $ulsdir) { |
if(-d $ulsdir) { |
| if (opendir(LSDIR,$ulsdir)) { |
if (opendir(LSDIR,$ulsdir)) { |
| |
my $ulsfn; |
| while ($ulsfn=readdir(LSDIR)) { |
while ($ulsfn=readdir(LSDIR)) { |
| # see if this is a regular file (ignore links produced earlier) |
# see if this is a regular file (ignore links produced earlier) |
| my $thisfile=$ulsdir.'/'.$ulsfn; |
my $thisfile=$ulsdir.'/'.$ulsfn; |
| unless (-l $thisfile) { |
unless (-l $thisfile) { |
| if ($thisfile=~/\Q$fnamere1\E(\d+)\Q$fnamere2\E/) { |
if ($thisfile=~/\Q$fnamere1\E(\d+)\Q$fnamere2\E$/) { |
| if ($1>$version) { $version=$1; } |
if ($1>$version) { $version=$1; } |
| } |
} |
| } |
} |
| } |
} |
| closedir(LSDIR); |
closedir(LSDIR); |
| $version++; |
$version++; |
| } |
} |
| } |
} |
| } |
} |
| return $version; |
return $version; |
| } |
} |
| |
|
| sub thisversion { |
sub thisversion { |
|
Line 1970 sub subscribe {
|
Line 4166 sub subscribe {
|
| if (-d $fname) { |
if (-d $fname) { |
| $result="directory\n"; |
$result="directory\n"; |
| } else { |
} else { |
| if (-e "$fname.$hostid{$clientip}") {&unsub($fname,$clientip);} |
if (-e "$fname.$clientname") {&unsub($fname,$clientip);} |
| $now=time; |
my $now=time; |
| my $found=&addline($fname,$hostid{$clientip},$clientip, |
my $found=&addline($fname,$clientname,$clientip, |
| "$hostid{$clientip}:$clientip:$now\n"); |
"$clientname:$clientip:$now\n"); |
| if ($found) { $result="$fname\n"; } |
if ($found) { $result="$fname\n"; } |
| # if they were subscribed to only meta data, delete that |
# if they were subscribed to only meta data, delete that |
| # subscription, when you subscribe to a file you also get |
# subscription, when you subscribe to a file you also get |
|
Line 2016 sub make_passwd_file {
|
Line 4212 sub make_passwd_file {
|
| } |
} |
| } elsif ($umode eq 'unix') { |
} elsif ($umode eq 'unix') { |
| { |
{ |
| |
# |
| |
# Don't allow the creation of privileged accounts!!! that would |
| |
# be real bad!!! |
| |
# |
| |
my $uid = getpwnam($uname); |
| |
if((defined $uid) && ($uid == 0)) { |
| |
&logthis(">>>Attempted to create privilged account blocked"); |
| |
return "no_priv_account_error\n"; |
| |
} |
| |
|
| my $execpath="$perlvar{'lonDaemons'}/"."lcuseradd"; |
my $execpath="$perlvar{'lonDaemons'}/"."lcuseradd"; |
| { |
{ |
| &Debug("Executing external: ".$execpath); |
&Debug("Executing external: ".$execpath); |
| &Debug("user = ".$uname.", Password =". $npass); |
&Debug("user = ".$uname.", Password =". $npass); |
| my $se = IO::File->new("|$execpath > /home/www/lcuseradd.log"); |
my $se = IO::File->new("|$execpath > $perlvar{'lonDaemons'}/logs/lcuseradd.log"); |
| print $se "$uname\n"; |
print $se "$uname\n"; |
| print $se "$npass\n"; |
print $se "$npass\n"; |
| print $se "$npass\n"; |
print $se "$npass\n"; |
|
Line 2048 sub sethost {
|
Line 4254 sub sethost {
|
| my (undef,$hostid)=split(/:/,$remotereq); |
my (undef,$hostid)=split(/:/,$remotereq); |
| if (!defined($hostid)) { $hostid=$perlvar{'lonHostID'}; } |
if (!defined($hostid)) { $hostid=$perlvar{'lonHostID'}; } |
| if ($hostip{$perlvar{'lonHostID'}} eq $hostip{$hostid}) { |
if ($hostip{$perlvar{'lonHostID'}} eq $hostip{$hostid}) { |
| $currenthostid=$hostid; |
$currenthostid =$hostid; |
| $currentdomainid=$hostdom{$hostid}; |
$currentdomainid=$hostdom{$hostid}; |
| &logthis("Setting hostid to $hostid, and domain to $currentdomainid"); |
&logthis("Setting hostid to $hostid, and domain to $currentdomainid"); |
| } else { |
} else { |
|
Line 2065 sub version {
|
Line 4271 sub version {
|
| return "version:$VERSION"; |
return "version:$VERSION"; |
| } |
} |
| |
|
| |
#There is a copy of this in lonnet.pm |
| |
sub userload { |
| |
my $numusers=0; |
| |
{ |
| |
opendir(LONIDS,$perlvar{'lonIDsDir'}); |
| |
my $filename; |
| |
my $curtime=time; |
| |
while ($filename=readdir(LONIDS)) { |
| |
if ($filename eq '.' || $filename eq '..') {next;} |
| |
my ($mtime)=(stat($perlvar{'lonIDsDir'}.'/'.$filename))[9]; |
| |
if ($curtime-$mtime < 1800) { $numusers++; } |
| |
} |
| |
closedir(LONIDS); |
| |
} |
| |
my $userloadpercent=0; |
| |
my $maxuserload=$perlvar{'lonUserLoadLim'}; |
| |
if ($maxuserload) { |
| |
$userloadpercent=100*$numusers/$maxuserload; |
| |
} |
| |
$userloadpercent=sprintf("%.2f",$userloadpercent); |
| |
return $userloadpercent; |
| |
} |
| |
|
| |
# Routines for serializing arrays and hashes (copies from lonnet) |
| |
|
| |
sub array2str { |
| |
my (@array) = @_; |
| |
my $result=&arrayref2str(\@array); |
| |
$result=~s/^__ARRAY_REF__//; |
| |
$result=~s/__END_ARRAY_REF__$//; |
| |
return $result; |
| |
} |
| |
|
| |
sub arrayref2str { |
| |
my ($arrayref) = @_; |
| |
my $result='__ARRAY_REF__'; |
| |
foreach my $elem (@$arrayref) { |
| |
if(ref($elem) eq 'ARRAY') { |
| |
$result.=&arrayref2str($elem).'&'; |
| |
} elsif(ref($elem) eq 'HASH') { |
| |
$result.=&hashref2str($elem).'&'; |
| |
} elsif(ref($elem)) { |
| |
#print("Got a ref of ".(ref($elem))." skipping."); |
| |
} else { |
| |
$result.=&escape($elem).'&'; |
| |
} |
| |
} |
| |
$result=~s/\&$//; |
| |
$result .= '__END_ARRAY_REF__'; |
| |
return $result; |
| |
} |
| |
|
| |
sub hash2str { |
| |
my (%hash) = @_; |
| |
my $result=&hashref2str(\%hash); |
| |
$result=~s/^__HASH_REF__//; |
| |
$result=~s/__END_HASH_REF__$//; |
| |
return $result; |
| |
} |
| |
|
| |
sub hashref2str { |
| |
my ($hashref)=@_; |
| |
my $result='__HASH_REF__'; |
| |
foreach (sort(keys(%$hashref))) { |
| |
if (ref($_) eq 'ARRAY') { |
| |
$result.=&arrayref2str($_).'='; |
| |
} elsif (ref($_) eq 'HASH') { |
| |
$result.=&hashref2str($_).'='; |
| |
} elsif (ref($_)) { |
| |
$result.='='; |
| |
#print("Got a ref of ".(ref($_))." skipping."); |
| |
} else { |
| |
if ($_) {$result.=&escape($_).'=';} else { last; } |
| |
} |
| |
|
| |
if(ref($hashref->{$_}) eq 'ARRAY') { |
| |
$result.=&arrayref2str($hashref->{$_}).'&'; |
| |
} elsif(ref($hashref->{$_}) eq 'HASH') { |
| |
$result.=&hashref2str($hashref->{$_}).'&'; |
| |
} elsif(ref($hashref->{$_})) { |
| |
$result.='&'; |
| |
#print("Got a ref of ".(ref($hashref->{$_}))." skipping."); |
| |
} else { |
| |
$result.=&escape($hashref->{$_}).'&'; |
| |
} |
| |
} |
| |
$result=~s/\&$//; |
| |
$result .= '__END_HASH_REF__'; |
| |
return $result; |
| |
} |
| |
|
| # ----------------------------------- POD (plain old documentation, CPAN style) |
# ----------------------------------- POD (plain old documentation, CPAN style) |
| |
|
| =head1 NAME |
=head1 NAME |
|
Line 2174 each connection is logged.
|
Line 4471 each connection is logged.
|
| |
|
| =item * |
=item * |
| |
|
| |
SIGUSR2 |
| |
|
| |
Parent Signal assignment: |
| |
$SIG{USR2} = \&UpdateHosts |
| |
|
| |
Child signal assignment: |
| |
NONE |
| |
|
| |
|
| |
=item * |
| |
|
| SIGCHLD |
SIGCHLD |
| |
|
| Parent signal assignment: |
Parent signal assignment: |
|
Line 2334 Send along temporarily stored informatio
|
Line 4642 Send along temporarily stored informatio
|
| |
|
| List part of a user's directory. |
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) |
=item Hanging up (exit or init) |
| |
|
| What to do when a client tells the server that they (the client) |
What to do when a client tells the server that they (the client) |
|
Line 2344 are leaving the network.
|
Line 4663 are leaving the network.
|
| If B<lond> is sent an unknown command (not in the list above), |
If B<lond> is sent an unknown command (not in the list above), |
| it replys to the client "unknown_cmd". |
it replys to the client "unknown_cmd". |
| |
|
| |
|
| =item UNKNOWN CLIENT |
=item UNKNOWN CLIENT |
| |
|
| If the anti-spoofing algorithm cannot verify the client, |
If the anti-spoofing algorithm cannot verify the client, |
![[BACK]](/icons/back.gif){kind=icon}
Return to lond CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
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