--- loncom/lond 2004/04/26 10:37:47 1.178.2.19
+++ loncom/lond 2004/03/16 20:48:49 1.184
@@ -2,7 +2,7 @@
# The LearningOnline Network
# lond "LON Daemon" Server (port "LOND" 5663)
#
-# $Id: lond,v 1.178.2.19 2004/04/26 10:37:47 foxr Exp $
+# $Id: lond,v 1.184 2004/03/16 20:48:49 raeburn Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -20,7 +20,7 @@
#
# You should have received a copy of the GNU General Public License
# along with LON-CAPA; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# /home/httpd/html/adm/gpl.txt
#
@@ -48,12 +48,12 @@ use localauth;
use File::Copy;
use LONCAPA::ConfigFileEdit;
-my $DEBUG = 1; # Non zero to enable debug log entries.
+my $DEBUG = 0; # Non zero to enable debug log entries.
my $status='';
my $lastlog='';
-my $VERSION='$Revision: 1.178.2.19 $'; #' stupid emacs
+my $VERSION='$Revision: 1.184 $'; #' stupid emacs
my $remoteVERSION;
my $currenthostid;
my $currentdomainid;
@@ -62,9 +62,6 @@ my $client;
my $clientip;
my $clientname;
-my $cipher; # Cipher key negotiated with client.
-my $tmpsnum = 0;; # Id of tmpputs.
-
my $server;
my $thisserver;
@@ -86,19 +83,6 @@ my %managers; # Ip -> manager names
my %perlvar; # Will have the apache conf defined perl vars.
#
-# The hash below is used for command dispatching, and is therefore keyed on the request keyword.
-# Each element of the hash contains a reference to an array that contains:
-# A reference to a sub that executes the request corresponding to the keyword.
-# A flag that is true if the request must be encoded to be acceptable.
-# A mask with bits as follows:
-# CLIENT_OK - Set when the function is allowed by ordinary clients
-# MANAGER_OK - Set when the function is allowed to manager clients.
-#
-my $CLIENT_OK = 1;
-my $MANAGER_OK = 2;
-my %Dispatcher;
-
-#
# The array below are password error strings."
#
my $lastpwderror = 13; # Largest error number from lcpasswd.
@@ -135,2616 +119,6 @@ my @adderrors = ("ok",
"lcuseradd Could not add user.",
"lcuseradd Password mismatch");
-#
-# Statistics that are maintained and dislayed in the status line.
-#
-my $Transactions; # Number of attempted transactions.
-my $Failures; # Number of transcations failed.
-
-# ResetStatistics:
-# Resets the statistics counters:
-#
-sub ResetStatistics {
- $Transactions = 0;
- $Failures = 0;
-}
-
-#
-# Return true if client is a manager.
-#
-sub isManager {
- return (($ConnectionType eq "manager") || ($ConnectionType eq "both"));
-}
-#
-# Return tru if client can do client functions
-#
-sub isClient {
- return (($ConnectionType eq "client") || ($ConnectionType eq "both"));
-}
-#
-# 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 TieDomainHash {
- my $domain = shift;
- my $namespace = shift;
- my $how = shift;
-
- # Filter out any whitespace in the domain name:
-
- $domain =~ s/\W//g;
-
- # We have enough to go on to tie the hash:
-
- my $UserTopDir = $perlvar{'lonUsersDir'};
- my $DomainDir = $UserTopDir."/$domain";
- my $ResourceFile = $DomainDir."/$namespace.db";
- my %hash;
- if(tie(%hash, 'GDBM_File', $ResourceFile, $how, 0640)) {
- if (scalar @_) { # Need to log the operation.
- my $logFh = IO::File->new(">>$DomainDir/$namespace.hist");
- if($logFh) {
- my $TimeStamp = time;
- my ($loghead, $logtail) = @_;
- print $logFh "$loghead:$TimeStamp:$logtail\n";
- }
- }
- 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 TieUserHash {
- my $domain = shift;
- my $user = shift;
- my $namespace = shift;
- my $how = shift;
-
- $namespace=~s/\//\_/g; # / -> _
- $namespace=~s/\W//g; # whitespace eliminated.
- my $proname = propath($domain, $user);
-
- # If this is a namespace for which a history is kept,
- # make the history log entry:
-
-
- unless ($namespace =~/^nohist\_/ && (scalar @_ > 0)) {
- my $hfh = IO::File->new(">>$proname/$namespace.hist");
- if($hfh) {
- my $now = time;
- my $loghead = shift;
- my $what = shift;
- print $hfh "$loghead:$now:$what\n";
- }
- }
- # Tie the database.
-
- my %hash;
- if(tie(%hash, 'GDBM_File', "$proname/$namespace.db",
- $how, 0640)) {
- return \%hash;
- }
- else {
- return undef;
- }
-
-}
-
-#
-# 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 GetRequest {
- my $input = <$client>;
- chomp($input);
-
- Debug("Request = $input\n");
-
- &status('Processing '.$clientname.':'.$input);
-
- return $input;
-}
-#
-# 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 = shift;
- 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:
-# $RequestName - 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
-# $MustEncode - True if the request must be encoded to be good.
-# $ClientOk - True if it's ok for a client to request this.
-# $ManagerOk - 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 RegisterHandler {
- my $RequestName = shift;
- my $Procedure = shift;
- my $MustEncode = shift;
- my $ClientOk = shift;
- my $ManagerOk = shift;
-
- # Don't allow duplication#
-
- if (defined $Dispatcher{$RequestName}) {
- die "Attempting to define a duplicate request handler for $RequestName\n";
- }
- # Build the client type mask:
-
- my $ClientTypeMask = 0;
- if($ClientOk) {
- $ClientTypeMask |= $CLIENT_OK;
- }
- if($ManagerOk) {
- $ClientTypeMask |= $MANAGER_OK;
- }
-
- # Enter the hash:
-
- my @entry = ($Procedure, $MustEncode, $ClientTypeMask);
-
- $Dispatcher{$RequestName} = \@entry;
-
-
-}
-
-#--------------------- 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 PingHandler {
- my $cmd = shift;
- my $tail = shift;
- my $client = shift;
-
- Reply( $client,"$currenthostid\n","$cmd:$tail");
-
- return 1;
-}
-RegisterHandler("ping", \&PingHandler, 0, 1, 1); # Ping unencoded, client or manager.
-#
-# Handles pong reequests:
-# 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 PongHandler {
- my $cmd = shift;
- my $tail = shift;
- my $replyfd = shift;
-
- my $reply=&reply("ping",$clientname);
- Reply( $replyfd, "$currenthostid:$reply\n", "$cmd:$tail");
- return 1;
-}
-RegisterHandler("pong", \&PongHandler, 0, 1, 1); # Pong unencoded, client or manager
-
-#
-# EstablishKeyHandler:
-# Called to establish an encrypted session key with the remote client.
-#
-# 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 EstablishKeyHandler {
- my $cmd = shift;
- my $tail = shift;
- my $replyfd = shift;
-
- 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;
-
-}
-RegisterHandler("ekey", \&EstablishKeyHandler, 0, 1,1);
-
-# LoadHandler:
-# 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 LoadHandler {
- my $cmd = shift;
- my $tail = shift;
- my $replyfd = shift;
-
- # 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;
-}
-RegisterHandler("load", \&LoadHandler, 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 UserLoadHandler {
- my $cmd = shift;
- my $tail = shift;
- my $replyfd = shift;
-
- my $userloadpercent=&userload();
- Reply($replyfd, "$userloadpercent\n", "$cmd:$tail");
-
- return 1;
-}
-RegisterHandler("userload", \&UserLoadHandler, 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 UserAuthorizationType {
- my $cmd = shift;
- my $tail = shift;
- my $replyfd = shift;
-
- 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;
-}
-RegisterHandler("currentauth", \&UserAuthorizationType, 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 PushFileHandler {
- my $cmd = shift;
- my $tail = shift;
- my $client = shift;
-
- 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);
- }
-}
-RegisterHandler("pushfile", \&PushFileHandler, 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 ReinitProcessHandler {
- my $cmd = shift;
- my $tail = shift;
- my $client = shift;
-
- 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;
-}
-
-RegisterHandler("reinit", \&ReinitProcessHandler, 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 EditTableHandler {
- my $command = shift;
- my $tail = shift;
- my $client = shift;
-
- 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;
-}
-RegisterHandler("edit", \&EditTableHandler, 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 AuthenticateHandler {
- my $cmd = shift;
- my $tail = shift;
- my $client = shift;
-
- # 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 = ValidateUser($udom, $uname, $upass);
- if($pwdcorrect) {
- Reply( $client, "authorized\n", $userinput);
- #
- # Bad credentials: Failed to authorize
- #
- } else {
- Failure( $client, "non_authorized\n", $userinput);
- }
-
- return 1;
-}
-RegisterHandler("auth", \&AuthenticateHandler, 1, 1, 0);
-
-#
-# Change a user's password. Note that this function is complicated by
-# the fact that a user may be authenticated in more than one way:
-# At present, we are not able to change the password for all types of
-# authentication methods. Only for:
-# unix - unix password or shadow passoword style authentication.
-# local - Locally written authentication mechanism.
-# For now, kerb4 and kerb5 password changes are not supported and result
-# in an error.
-# FUTURE WORK:
-# Support kerberos passwd changes?
-# Parameters:
-# $cmd - The command that got us here.
-# $tail - Tail of the command (remaining parameters).
-# $client - File descriptor connected to client.
-# Returns
-# 0 - Requested to exit, caller should shut down.
-# 1 - Continue processing.
-# Implicit inputs:
-# The authentication systems describe above have their own forms of implicit
-# input into the authentication process that are described above.
-sub ChangePasswordHandler {
- my $cmd = shift;
- my $tail = shift;
- my $client = shift;
-
- my $userinput = $cmd.":".$tail; # Reconstruct client's string.
-
- #
- # udom - user's domain.
- # uname - Username.
- # upass - Current password.
- # npass - New password.
-
- my ($udom,$uname,$upass,$npass)=split(/:/,$tail);
- chomp($npass);
- $upass=&unescape($upass);
- $npass=&unescape($npass);
- &Debug("Trying to change password for $uname");
-
- # First require that the user can be authenticated with their
- # old password:
-
- my $validated = ValidateUser($udom, $uname, $upass);
- if($validated) {
- my $realpasswd = GetAuthType($udom, $uname); # Defined since authd.
-
- my ($howpwd,$contentpwd)=split(/:/,$realpasswd);
- if ($howpwd eq 'internal') {
- &Debug("internal auth");
- my $salt=time;
- $salt=substr($salt,6,2);
- my $ncpass=crypt($npass,$salt);
- if(RewritePwFile($udom, $uname, "internal:$ncpass")) {
- &logthis("Result of password change for "
- ."$uname: pwchange_success");
- Reply($client, "ok\n", $userinput);
- } else {
- &logthis("Unable to open $uname passwd "
- ."to change password");
- Failure( $client, "non_authorized\n",$userinput);
- }
- } elsif ($howpwd eq 'unix') {
- # Unix means we have to access /etc/password
- &Debug("auth is unix");
- 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($?));
- Reply($client, "$result\n", $userinput);
- } else {
- # this just means that the current password mode is not
- # one we know how to change (e.g the kerberos auth modes or
- # locally written auth handler).
- #
- Reply( $client, "auth_mode_error\n", $userinput);
- }
-
- }
- else {
- Reply( $client, "non_authorized\n", $userinput);
- }
-
- return 1;
-}
-RegisterHandler("passwd", \&ChangePasswordHandler, 1, 1, 0);
-
-#
-# Create a new user. User in this case means a lon-capa user.
-# The user must either already exist in some authentication realm
-# like kerberos or the /etc/passwd. If not, a user completely local to
-# this loncapa system is created.
-#
-# Parameters:
-# $cmd - The command that got us here.
-# $tail - Tail of the command (remaining parameters).
-# $client - File descriptor connected to client.
-# Returns
-# 0 - Requested to exit, caller should shut down.
-# 1 - Continue processing.
-# Implicit inputs:
-# The authentication systems describe above have their own forms of implicit
-# input into the authentication process that are described above.
-sub AddUserHandler {
- my $cmd = shift;
- my $tail = shift;
- my $client = shift;
-
- my ($udom,$uname,$umode,$npass)=split(/:/,$tail);
- my $userinput = $cmd.":".$tail; # Reconstruct the full request line.
-
- &Debug("cmd =".$cmd." $udom =".$udom." uname=".$uname);
-
-
- if($udom eq $currentdomainid) { # Reject new users for other domains...
-
- my $oldumask=umask(0077);
- chomp($npass);
- $npass=&unescape($npass);
- my $passfilename = PasswordPath($udom, $uname);
- &Debug("Password file created will be:".$passfilename);
- if (-e $passfilename) {
- Failure( $client, "already_exists\n", $userinput);
- } else {
- my @fpparts=split(/\//,$passfilename);
- my $fpnow=$fpparts[0].'/'.$fpparts[1].'/'.$fpparts[2];
- my $fperror='';
- for (my $i=3;$i<= ($#fpparts-1);$i++) {
- $fpnow.='/'.$fpparts[$i];
- unless (-e $fpnow) {
- &logthis("mkdir $fpnow");
- unless (mkdir($fpnow,0777)) {
- $fperror="error: ".($!+0)." mkdir failed while attempting "
- ."makeuser";
- }
- }
- }
- unless ($fperror) {
- my $result=&make_passwd_file($uname, $umode,$npass, $passfilename);
- Reply($client, $result, $userinput); #BUGBUG - could be fail
- } else {
- Failure($client, "$fperror\n", $userinput);
- }
- }
- umask($oldumask);
- } else {
- Failure($client, "not_right_domain\n",
- $userinput); # Even if we are multihomed.
-
- }
- return 1;
-
-}
-RegisterHandler("makeuser", \&AddUserHandler, 1, 1, 0);
-
-#
-# Change the authentication method of a user. Note that this may
-# also implicitly change the user's password if, for example, the user is
-# joining an existing authentication realm. Known authentication realms at
-# this time are:
-# internal - Purely internal password file (only loncapa knows this user)
-# local - Institutionally written authentication module.
-# unix - Unix user (/etc/passwd with or without /etc/shadow).
-# kerb4 - kerberos version 4
-# kerb5 - kerberos version 5
-#
-# Parameters:
-# $cmd - The command that got us here.
-# $tail - Tail of the command (remaining parameters).
-# $client - File descriptor connected to client.
-# Returns
-# 0 - Requested to exit, caller should shut down.
-# 1 - Continue processing.
-# Implicit inputs:
-# The authentication systems describe above have their own forms of implicit
-# input into the authentication process that are described above.
-#
-sub ChangeAuthenticationHandler {
- my $cmd = shift;
- my $tail = shift;
- my $client = shift;
-
- my $userinput = "$cmd:$tail"; # Reconstruct user input.
-
- my ($udom,$uname,$umode,$npass)=split(/:/,$tail);
- &Debug("cmd = ".$cmd." domain= ".$udom."uname =".$uname." umode= ".$umode);
- if ($udom ne $currentdomainid) {
- Failure( $client, "not_right_domain\n", $client);
- } else {
-
- chomp($npass);
-
- $npass=&unescape($npass);
- my $passfilename = PasswordPath($udom, $uname);
- if ($passfilename) { # Not allowed to create a new user!!
- my $result=&make_passwd_file($uname, $umode,$npass,$passfilename);
- Reply($client, $result, $userinput);
- } else {
- Failure($client, "non_authorized", $userinput); # Fail the user now.
- }
- }
- return 1;
-}
-RegisterHandler("changeuserauth", \&ChangeAuthenticationHandler, 1,1, 0);
-
-#
-# Determines if this is the home server for a user. The home server
-# for a user will have his/her lon-capa passwd file. Therefore all we need
-# to do is determine if this file exists.
-#
-# Parameters:
-# $cmd - The command that got us here.
-# $tail - Tail of the command (remaining parameters).
-# $client - File descriptor connected to client.
-# Returns
-# 0 - Requested to exit, caller should shut down.
-# 1 - Continue processing.
-# Implicit inputs:
-# The authentication systems describe above have their own forms of implicit
-# input into the authentication process that are described above.
-#
-sub IsHomeHandler {
- my $cmd = shift;
- my $tail = shift;
- my $client = shift;
-
- my $userinput = "$cmd:$tail";
-
- my ($udom,$uname)=split(/:/,$tail);
- chomp($uname);
- my $passfile = PasswordFilename($udom, $uname);
- if($passfile) {
- Reply( $client, "found\n", $userinput);
- } else {
- Failure($client, "not_found\n", $userinput);
- }
- return 1;
-}
-RegisterHandler("home", \&IsHomeHandler, 0,1,0);
-#
-# Process an update request for a resource?? I think what's going on here is
-# that a resource has been modified that we hold a subscription to.
-# If the resource is not local, then we must update, or at least invalidate our
-# cached copy of the resource.
-# FUTURE WORK:
-# I need to look at this logic carefully. My druthers would be to follow
-# typical caching logic, and simple invalidate the cache, drop any subscription
-# an let the next fetch start the ball rolling again... however that may
-# actually be more difficult than it looks given the complex web of
-# proxy servers.
-# 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 UpdateResourceHandler {
- my $cmd = shift;
- my $tail = shift;
- my $client = shift;
-
- my $userinput = "$cmd:$tail";
-
- my $fname=$tail;
- 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;
- alarm(120);
- {
- my $ua=new LWP::UserAgent;
- my $request=new HTTP::Request('GET',"$remoteurl");
- $response=$ua->request($request,$transname);
- }
- alarm(0);
- if ($response->is_error()) {
- unlink($transname);
- my $message=$response->status_line;
- &logthis("LWP GET: $message for $fname ($remoteurl)");
- } else {
- if ($remoteurl!~/\.meta$/) {
- alarm(120);
- {
- my $ua=new LWP::UserAgent;
- my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta');
- my $mresponse=$ua->request($mrequest,$fname.'.meta');
- if ($mresponse->is_error()) {
- unlink($fname.'.meta');
- }
- }
- alarm(0);
- }
- rename($transname,$fname);
- }
- }
- Reply( $client, "ok\n", $userinput);
- } else {
- Failure($client, "not_found\n", $userinput);
- }
- } else {
- Failure($client, "rejected\n", $userinput);
- }
- return 1;
-}
-RegisterHandler("update", \&UpdateResourceHandler, 0 ,1, 0);
-
-#
-# Fetch a user file from a remote server:
-# Parameters:
-# $cmd - The command that got us here.
-# $tail - Tail of the command (remaining parameters).
-# $client - File descriptor connected to client.
-# Returns
-# 0 - Requested to exit, caller should shut down.
-# 1 - Continue processing.
-#
-sub FetchUserFileHandler {
- my $cmd = shift;
- my $tail = shift;
- my $client = shift;
-
- my $userinput = "$cmd:$tail";
- my $fname = $tail;
- 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 $destname=$udir.'/'.$ufile;
- my $transname=$udir.'/'.$ufile.'.in.transit';
- my $remoteurl='http://'.$clientip.'/userfiles/'.$fname;
- my $response;
- alarm(120);
- {
- my $ua=new LWP::UserAgent;
- my $request=new HTTP::Request('GET',"$remoteurl");
- $response=$ua->request($request,$transname);
- }
- alarm(0);
- if ($response->is_error()) {
- unlink($transname);
- my $message=$response->status_line;
- &logthis("LWP GET: $message for $fname ($remoteurl)");
- Failure($client, "failed\n", $userinput);
- } else {
- if (!rename($transname,$destname)) {
- &logthis("Unable to move $transname to $destname");
- unlink($transname);
- Failure($client, "failed\n", $userinput);
- } else {
- Reply($client, "ok\n", $userinput);
- }
- }
- } else {
- Failure($client, "not_home\n", $userinput);
- }
- return 1;
-}
-RegisterHandler("fetchuserfile", \&FetchUserFileHandler, 0, 1, 0);
-#
-# Authenticate access to a user file.
-#
-# Parameters:
-# $cmd - The command that got us here.
-# $tail - Tail of the command (remaining parameters).
-# $client - File descriptor connected to client.
-# Returns
-# 0 - Requested to exit, caller should shut down.
-# 1 - Continue processing.
-sub AuthenticateUserFileAccess {
- my $cmd = shift;
- my $tail = shift;
- my $client = shift;
- my $userinput = "$cmd:$tail";
-
- my ($fname,$session)=split(/:/,$tail);
- chomp($session);
- my $reply='non_auth';
- if (open(ENVIN,$perlvar{'lonIDsDir'}.'/'.$session.'.id')) {
- while (my $line=<ENVIN>) {
- if ($line=~/userfile\.$fname\=/) {
- $reply='ok';
- }
- }
- close(ENVIN);
- Reply($client, $reply."\n", $userinput);
- } else {
- Failure($client, "invalid_token\n", $userinput);
- }
- return 1;
-
-}
-RegisterHandler("tokenauthuserfile", \&AuthenticateUserFileAccess, 0, 1, 0);
-#
-# Unsubscribe from a resource.
-#
-# Parameters:
-# $cmd - The command that got us here.
-# $tail - Tail of the command (remaining parameters).
-# $client - File descriptor connected to client.
-# Returns
-# 0 - Requested to exit, caller should shut down.
-# 1 - Continue processing.
-#
-sub UnsubscribeHandler {
- my $cmd = shift;
- my $tail = shift;
- my $client = shift;
- my $userinput= "$cmd:$tail";
-
- my $fname = $tail;
- if (-e $fname) {
- Reply($client, &unsub($client,$fname,$clientip), $userinput);
- } else {
- Failure($client, "not_found\n", $userinput);
- }
- return 1;
-}
-RegisterHandler("unusb", \&UnsubscribeHandler, 0, 1, 0);
-
-# Subscribe to a resource
-#
-# Parameters:
-# $cmd - The command that got us here.
-# $tail - Tail of the command (remaining parameters).
-# $client - File descriptor connected to client.
-# Returns
-# 0 - Requested to exit, caller should shut down.
-# 1 - Continue processing.
-#
-sub SubscribeHandler {
- my $cmd = shift;
- my $tail = shift;
- my $client = shift;
- my $userinput = "$cmd:$tail";
-
- Reply( $client, &subscribe($userinput,$clientip), $userinput);
-
- return 1;
-}
-RegisterHandler("sub", \&SubscribeHandler, 0, 1, 0);
-
-#
-# Determine the version of a resource (?) Or is it return
-# the top version of the resource? Not yet clear from the
-# code in currentversion.
-#
-# Parameters:
-# $cmd - The command that got us here.
-# $tail - Tail of the command (remaining parameters).
-# $client - File descriptor connected to client.
-# Returns
-# 0 - Requested to exit, caller should shut down.
-# 1 - Continue processing.
-#
-sub CurrentVersionHandler {
- my $cmd = shift;
- my $tail = shift;
- my $client = shift;
- my $userinput= "$cmd:$tail";
-
- my $fname = $tail;
- Reply( $client, ¤tversion($fname)."\n", $userinput);
- return 1;
-
-}
-RegisterHandler("currentversion", \&CurrentVersionHandler, 0, 1, 0);
-
-
-# Make an entry in a user's activity log.
-#
-# Parameters:
-# $cmd - The command that got us here.
-# $tail - Tail of the command (remaining parameters).
-# $client - File descriptor connected to client.
-# Returns
-# 0 - Requested to exit, caller should shut down.
-# 1 - Continue processing.
-#
-sub ActivityLogEntryHandler {
- my $cmd = shift;
- my $tail = shift;
- my $client = shift;
- my $userinput= "$cmd:$tail";
-
- my ($udom,$uname,$what)=split(/:/,$tail);
- chomp($what);
- my $proname=propath($udom,$uname);
- my $now=time;
- my $hfh;
- if ($hfh=IO::File->new(">>$proname/activity.log")) {
- print $hfh "$now:$clientname:$what\n";
- Reply( $client, "ok\n", $userinput);
- } else {
- Failure($client, "error: ".($!+0)." IO::File->new Failed "
- ."while attempting log\n",
- $userinput);
- }
-
- return 1;
-}
-RegisterHandler("log", \&ActivityLogEntryHandler, 0, 1, 0);
-#
-# Put a namespace entry in a user profile hash.
-# My druthers would be for this to be an encrypted interaction too.
-# anything that might be an inadvertent covert channel about either
-# user authentication or user personal information....
-#
-# Parameters:
-# $cmd - The command that got us here.
-# $tail - Tail of the command (remaining parameters).
-# $client - File descriptor connected to client.
-# Returns
-# 0 - Requested to exit, caller should shut down.
-# 1 - Continue processing.
-#
-sub PutUserProfileEntry {
- my $cmd = shift;
- my $tail = shift;
- my $client = shift;
- my $userinput = "$cmd:$tail";
-
- my ($udom,$uname,$namespace,$what) =split(/:/,$tail);
- if ($namespace ne 'roles') {
- chomp($what);
- my $hashref = TieUserHash($udom, $uname, $namespace,
- &GDBM_WRCREAT(),"P",$what);
- if($hashref) {
- my @pairs=split(/\&/,$what);
- foreach my $pair (@pairs) {
- my ($key,$value)=split(/=/,$pair);
- $hashref->{$key}=$value;
- }
- if (untie(%$hashref)) {
- Reply( $client, "ok\n", $userinput);
- } else {
- Failure($client, "error: ".($!+0)." untie(GDBM) failed ".
- "while attempting put\n",
- $userinput);
- }
- } else {
- Failure( $client, "error: ".($!)." tie(GDBM) Failed ".
- "while attempting put\n", $userinput);
- }
- } else {
- Failure( $client, "refused\n", $userinput);
- }
-
- return 1;
-}
-RegisterHandler("put", \&PutUserProfileEntry, 0, 1, 0);
-
-#
-# Increment a profile entry in the user history file.
-# The history contains keyword value pairs. In this case,
-# The value itself is a pair of numbers. The first, the current value
-# the second an increment that this function applies to the current
-# value.
-#
-# Parameters:
-# $cmd - The command that got us here.
-# $tail - Tail of the command (remaining parameters).
-# $client - File descriptor connected to client.
-# Returns
-# 0 - Requested to exit, caller should shut down.
-# 1 - Continue processing.
-#
-sub IncrementUserValueHandler {
- my $cmd = shift;
- my $tail = shift;
- my $client = shift;
- my $userinput = "$cmd:$tail";
-
- my ($udom,$uname,$namespace,$what) =split(/:/,$tail);
- if ($namespace ne 'roles') {
- chomp($what);
- my $hashref = TieUserHash($udom, $uname,
- $namespace, &GDBM_WRCREAT(),
- "P",$what);
- if ($hashref) {
- my @pairs=split(/\&/,$what);
- foreach my $pair (@pairs) {
- my ($key,$value)=split(/=/,$pair);
- # We could check that we have a number...
- if (! defined($value) || $value eq '') {
- $value = 1;
- }
- $hashref->{$key}+=$value;
- }
- if (untie(%$hashref)) {
- Reply( $client, "ok\n", $userinput);
- } else {
- Failure($client, "error: ".($!+0)." untie(GDBM) failed ".
- "while attempting inc\n", $userinput);
- }
- } else {
- Failure($client, "error: ".($!+0)." tie(GDBM) Failed ".
- "while attempting inc\n", $userinput);
- }
- } else {
- Failure($client, "refused\n", $userinput);
- }
-
- return 1;
-}
-RegisterHandler("inc", \&IncrementUserValueHandler, 0, 1, 0);
-#
-# Put a new role for a user. Roles are LonCAPA's packaging of permissions.
-# Each 'role' a user has implies a set of permissions. Adding a new role
-# for a person grants the permissions packaged with that role
-# to that user when the role is selected.
-#
-# Parameters:
-# $cmd - The command string (rolesput).
-# $tail - The remainder of the request line. For rolesput this
-# consists of a colon separated list that contains:
-# The domain and user that is granting the role (logged).
-# The domain and user that is getting the role.
-# The roles being granted as a set of & separated pairs.
-# each pair a key value pair.
-# $client - File descriptor connected to the client.
-# Returns:
-# 0 - If the daemon should exit
-# 1 - To continue processing.
-#
-#
-sub RolesPutHandler {
- my $cmd = shift;
- my $tail = shift;
- my $client = shift;
- my $userinput = "$cmd:$tail";
-
- my ( $exedom, $exeuser, $udom, $uname, $what) = split(/:/,$tail);
-
-
- my $namespace='roles';
- chomp($what);
- my $hashref = TieUserHash($udom, $uname, $namespace,
- &GDBM_WRCREAT(), "P",
- "$exedom:$exeuser:$what");
- #
- # Log the attempt to set a role. The {}'s here ensure that the file
- # handle is open for the minimal amount of time. Since the flush
- # is done on close this improves the chances the log will be an un-
- # corrupted ordered thing.
- if ($hashref) {
- my @pairs=split(/\&/,$what);
- foreach my $pair (@pairs) {
- my ($key,$value)=split(/=/,$pair);
- &ManagePermissions($key, $udom, $uname,
- &GetAuthType( $udom, $uname));
- $hashref->{$key}=$value;
- }
- if (untie($hashref)) {
- Reply($client, "ok\n", $userinput);
- } else {
- Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ".
- "while attempting rolesput\n", $userinput);
- }
- } else {
- Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ".
- "while attempting rolesput\n", $userinput);
- }
- return 1;
-}
-RegisterHandler("rolesput", \&RolesPutHandler, 1,1,0); # Encoded client only.
-#
-# Deletes (removes) a role for a user. This is equivalent to removing
-# a permissions package associated with the role from the user's profile.
-#
-# Parameters:
-# $cmd - The command (rolesdel)
-# $tail - The remainder of the request line. This consists
-# of:
-# The domain and user requesting the change (logged)
-# The domain and user being changed.
-# The roles being revoked. These are shipped to us
-# as a bunch of & separated role name keywords.
-# $client - The file handle open on the client.
-# Returns:
-# 1 - Continue processing
-# 0 - Exit.
-#
-sub RolesDeleteHandler {
- my $cmd = shift;
- my $tail = shift;
- my $client = shift;
- my $userinput = "$cmd:$tail";
-
- my ($exedom,$exeuser,$udom,$uname,$what)=split(/:/,$tail);
- &Debug("cmd = ".$cmd." exedom= ".$exedom."user = ".$exeuser." udom=".$udom.
- "what = ".$what);
- my $namespace='roles';
- chomp($what);
- my $hashref = TieUserHash($udom, $uname, $namespace,
- &GDBM_WRCREAT(), "D",
- "$exedom:$exeuser:$what");
-
- if ($hashref) {
- my @rolekeys=split(/\&/,$what);
-
- foreach my $key (@rolekeys) {
- delete $hashref->{$key};
- }
- if (untie(%$hashref)) {
- Reply($client, "ok\n", $userinput);
- } else {
- Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ".
- "while attempting rolesdel\n", $userinput);
- }
- } else {
- Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ".
- "while attempting rolesdel\n", $userinput);
- }
-
- return 1;
-}
-RegisterHandler("rolesdel", \&RolesDeleteHandler, 1,1, 0); # Encoded client only
-
-# Unencrypted get from a user's profile database. See
-# GetProfileEntryEncrypted for a version that does end-to-end encryption.
-# This function retrieves a keyed item from a specific named database in the
-# user's directory.
-#
-# Parameters:
-# $cmd - Command request keyword (get).
-# $tail - Tail of the command. This is a colon separated list
-# consisting of the domain and username that uniquely
-# identifies the profile,
-# The 'namespace' which selects the gdbm file to
-# do the lookup in,
-# & separated list of keys to lookup. Note that
-# the values are returned as an & separated list too.
-# $client - File descriptor open on the client.
-# Returns:
-# 1 - Continue processing.
-# 0 - Exit.
-#
-sub GetProfileEntry {
- my $cmd = shift;
- my $tail = shift;
- my $client = shift;
- my $userinput= "$cmd:$tail";
-
- my ($udom,$uname,$namespace,$what) = split(/:/,$tail);
- chomp($what);
- my $hashref = TieUserHash($udom, $uname, $namespace,
- &GDBM_READER());
- if ($hashref) {
- my @queries=split(/\&/,$what);
- my $qresult='';
-
- for (my $i=0;$i<=$#queries;$i++) {
- $qresult.="$hashref->{$queries[$i]}&"; # Presumably failure gives empty string.
- }
- $qresult=~s/\&$//; # Remove trailing & from last lookup.
- if (untie(%$hashref)) {
- Reply($client, "$qresult\n", $userinput);
- } else {
- Failure($client, "error: ".($!+0)." untie(GDBM) Failed ".
- "while attempting get\n", $userinput);
- }
- } else {
- if ($!+0 == 2) { # +0 coerces errno -> number 2 is ENOENT
- Failure($client, "error:No such file or ".
- "GDBM reported bad block error\n", $userinput);
- } else { # Some other undifferentiated err.
- Failure($client, "error: ".($!+0)." tie(GDBM) Failed ".
- "while attempting get\n", $userinput);
- }
- }
- return 1;
-}
-RegisterHandler("get", \&GetProfileEntry, 0,1,0);
-#
-# Process the encrypted get request. Note that the request is sent
-# in clear, but the reply is encrypted. This is a small covert channel:
-# information about the sensitive keys is given to the snooper. Just not
-# information about the values of the sensitive key. Hmm if I wanted to
-# know these I'd snoop for the egets. Get the profile item names from them
-# and then issue a get for them since there's no enforcement of the
-# requirement of an encrypted get for particular profile items. If I
-# were re-doing this, I'd force the request to be encrypted as well as the
-# reply. I'd also just enforce encrypted transactions for all gets since
-# that would prevent any covert channel snooping.
-#
-# Parameters:
-# $cmd - Command keyword of request (eget).
-# $tail - Tail of the command. See GetProfileEntry
# for more information about this.
-# $client - File open on the client.
-# Returns:
-# 1 - Continue processing
-# 0 - server should exit.
-sub GetProfileEntryEncrypted {
- my $cmd = shift;
- my $tail = shift;
- my $client = shift;
- my $userinput = "$cmd:$tail";
-
- my ($cmd,$udom,$uname,$namespace,$what) = split(/:/,$userinput);
- chomp($what);
- my $hashref = TieUserHash($udom, $uname, $namespace,
- &GDBM_READER());
- if ($hashref) {
- my @queries=split(/\&/,$what);
- my $qresult='';
- for (my $i=0;$i<=$#queries;$i++) {
- $qresult.="$hashref->{$queries[$i]}&";
- }
- if (untie(%$hashref)) {
- $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)));
- }
- Reply( $client, "enc:$cmdlength:$encqresult\n", $userinput);
- } else {
- Failure( $client, "error:no_key\n", $userinput);
- }
- } else {
- Failure($client, "error: ".($!+0)." untie(GDBM) Failed ".
- "while attempting eget\n", $userinput);
- }
- } else {
- Failure($client, "error: ".($!+0)." tie(GDBM) Failed ".
- "while attempting eget\n", $userinput);
- }
-
- return 1;
-}
-RegisterHandler("eget", \&GetProfileEntryEncrypted, 0, 1, 0);
-
-#
-# Deletes a key in a user profile database.
-#
-# Parameters:
-# $cmd - Command keyword (del).
-# $tail - Command tail. IN this case a colon
-# separated list containing:
-# The domain and user that identifies uniquely
-# the identity of the user.
-# The profile namespace (name of the profile
-# database file).
-# & separated list of keywords to delete.
-# $client - File open on client socket.
-# Returns:
-# 1 - Continue processing
-# 0 - Exit server.
-#
-#
-
-sub DeleteProfileEntry {
- my $cmd = shift;
- my $tail = shift;
- my $client = shift;
- my $userinput = "cmd:$tail";
-
- my ($udom,$uname,$namespace,$what) = split(/:/,$tail);
- chomp($what);
- my $hashref = TieUserHash($udom, $uname, $namespace,
- &GDBM_WRCREAT(),
- "D",$what);
- if ($hashref) {
- my @keys=split(/\&/,$what);
- foreach my $key (@keys) {
- delete($hashref->{$key});
- }
- if (untie(%$hashref)) {
- Reply($client, "ok\n", $userinput);
- } else {
- Failure($client, "error: ".($!+0)." untie(GDBM) Failed ".
- "while attempting del\n", $userinput);
- }
- } else {
- Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ".
- "while attempting del\n", $userinput);
- }
- return 1;
-}
-RegisterHandler("del", \&DeleteProfileEntry, 0, 1, 0);
-#
-# List the set of keys that are defined in a profile database file.
-# A successful reply from this will contain an & separated list of
-# the keys.
-# Parameters:
-# $cmd - Command request (keys).
-# $tail - Remainder of the request, a colon separated
-# list containing domain/user that identifies the
-# user being queried, and the database namespace
-# (database filename essentially).
-# $client - File open on the client.
-# Returns:
-# 1 - Continue processing.
-# 0 - Exit the server.
-#
-sub GetProfileKeys {
- my $cmd = shift;
- my $tail = shift;
- my $client = shift;
- my $userinput = "$cmd:$tail";
-
- my ($udom,$uname,$namespace)=split(/:/,$tail);
- my $qresult='';
- my $hashref = TieUserHash($udom, $uname, $namespace,
- &GDBM_READER());
- if ($hashref) {
- foreach my $key (keys %$hashref) {
- $qresult.="$key&";
- }
- if (untie(%$hashref)) {
- $qresult=~s/\&$//;
- Reply($client, "$qresult\n", $userinput);
- } else {
- Failure($client, "error: ".($!+0)." untie(GDBM) Failed ".
- "while attempting keys\n", $userinput);
- }
- } else {
- Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ".
- "while attempting keys\n", $userinput);
- }
-
- return 1;
-}
-RegisterHandler("keys", \&GetProfileKeys, 0, 1, 0);
-#
-# Dump the contents of a user profile database.
-# Note that this constitutes a very large covert channel too since
-# the dump will return sensitive information that is not encrypted.
-# The naive security assumption is that the session negotiation ensures
-# our client is trusted and I don't believe that's assured at present.
-# Sure want badly to go to ssl or tls. Of course if my peer isn't really
-# a LonCAPA node they could have negotiated an encryption key too so >sigh<.
-#
-# Parameters:
-# $cmd - The command request keyword (currentdump).
-# $tail - Remainder of the request, consisting of a colon
-# separated list that has the domain/username and
-# the namespace to dump (database file).
-# $client - file open on the remote client.
-# Returns:
-# 1 - Continue processing.
-# 0 - Exit the server.
-#
-sub DumpProfileDatabase {
- my $cmd = shift;
- my $tail = shift;
- my $client = shift;
- my $userinput = "$cmd:$tail";
-
- my ($udom,$uname,$namespace) = split(/:/,$tail);
- my $hashref = TieUserHash($udom, $uname, $namespace,
- &GDBM_READER());
- if ($hashref) {
- # Structure of %data:
- # $data{$symb}->{$parameter}=$value;
- # $data{$symb}->{'v.'.$parameter}=$version;
- # since $parameter will be unescaped, we do not
- # have to worry about silly parameter names...
-
- my $qresult='';
- my %data = (); # A hash of anonymous hashes..
- while (my ($key,$value) = each(%$hashref)) {
- my ($v,$symb,$param) = split(/:/,$key);
- next if ($v eq 'version' || $symb eq 'keys');
- next if (exists($data{$symb}) &&
- exists($data{$symb}->{$param}) &&
- $data{$symb}->{'v.'.$param} > $v);
- $data{$symb}->{$param}=$value;
- $data{$symb}->{'v.'.$param}=$v;
- }
- if (untie(%$hashref)) {
- while (my ($symb,$param_hash) = each(%data)) {
- while(my ($param,$value) = each (%$param_hash)){
- next if ($param =~ /^v\./); # Ignore versions...
- #
- # Just dump the symb=value pairs separated by &
- #
- $qresult.=$symb.':'.$param.'='.$value.'&';
- }
- }
- chop($qresult);
- Reply($client , "$qresult\n", $userinput);
- } else {
- Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ".
- "while attempting currentdump\n", $userinput);
- }
- } else {
- Failure($client, "error: ".($!+0)." tie(GDBM) Failed ".
- "while attempting currentdump\n", $userinput);
- }
-
- return 1;
-}
-RegisterHandler("currentdump", \&DumpProfileDatabase, 0, 1, 0);
-#
-# Dump a profile database with an optional regular expression
-# to match against the keys. In this dump, no effort is made
-# to separate symb from version information. Presumably the
-# databases that are dumped by this command are of a different
-# structure. Need to look at this and improve the documentation of
-# both this and the currentdump handler.
-# Parameters:
-# $cmd - The command keyword.
-# $tail - All of the characters after the $cmd:
-# These are expected to be a colon
-# separated list containing:
-# domain/user - identifying the user.
-# namespace - identifying the database.
-# regexp - optional regular expression
-# that is matched against
-# database keywords to do
-# selective dumps.
-# $client - Channel open on the client.
-# Returns:
-# 1 - Continue processing.
-# Side effects:
-# response is written to $client.
-#
-sub DumpWithRegexp {
- my $cmd = shift;
- my $tail = shift;
- my $client = shift;
-
- my $userinput = "$cmd:$tail";
-
- my ($udom,$uname,$namespace,$regexp)=split(/:/,$tail);
- if (defined($regexp)) {
- $regexp=&unescape($regexp);
- } else {
- $regexp='.';
- }
- my $hashref =TieUserHash($udom, $uname, $namespace,
- &GDBM_READER());
- if ($hashref) {
- my $qresult='';
- while (my ($key,$value) = each(%$hashref)) {
- if ($regexp eq '.') {
- $qresult.=$key.'='.$value.'&';
- } else {
- my $unescapeKey = &unescape($key);
- if (eval('$unescapeKey=~/$regexp/')) {
- $qresult.="$key=$value&";
- }
- }
- }
- if (untie(%$hashref)) {
- chop($qresult);
- Reply($client, "$qresult\n", $userinput);
- } else {
- Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ".
- "while attempting dump\n", $userinput);
- }
- } else {
- Failure($client, "error: ".($!+0)." tie(GDBM) Failed ".
- "while attempting dump\n", $userinput);
- }
-
- return 1;
-}
-RegisterHandler("dump", \&DumpWithRegexp, 0, 1, 0);
-
-# Store an aitem in any resource meta data(?) or database with
-# versioning?
-#
-# Parameters:
-# $cmd - Request command keyword.
-# $tail - Tail of the request. This is a colon
-# separated list containing:
-# domain/user - User and authentication domain.
-# namespace - Name of the database being modified
-# rid - Resource keyword to modify.
-# what - new value associated with rid.
-#
-# $client - Socket open on the client.
-#
-#
-# Returns:
-# 1 (keep on processing).
-# Side-Effects:
-# Writes to the client
-sub StoreHandler {
- my $cmd = shift;
- my $tail = shift;
- my $client = shift;
-
- my $userinput = "$cmd:$tail";
-
- my ($udom,$uname,$namespace,$rid,$what) =split(/:/,$tail);
- if ($namespace ne 'roles') {
-
- chomp($what);
- my @pairs=split(/\&/,$what);
- my $hashref = TieUserHash($udom, $uname, $namespace,
- &GDBM_WRCREAT(), "P",
- "$rid:$what");
- if ($hashref) {
- my $now = time;
- my @previouskeys=split(/&/,$hashref->{"keys:$rid"});
- my $key;
- $hashref->{"version:$rid"}++;
- my $version=$hashref->{"version:$rid"};
- my $allkeys='';
- foreach my $pair (@pairs) {
- my ($key,$value)=split(/=/,$pair);
- $allkeys.=$key.':';
- $hashref->{"$version:$rid:$key"}=$value;
- }
- $hashref->{"$version:$rid:timestamp"}=$now;
- $allkeys.='timestamp';
- $hashref->{"$version:keys:$rid"}=$allkeys;
- if (untie($hashref)) {
- Reply($client, "ok\n", $userinput);
- } else {
- Failure($client, "error: ".($!+0)." untie(GDBM) Failed ".
- "while attempting store\n", $userinput);
- }
- } else {
- Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ".
- "while attempting store\n", $userinput);
- }
- } else {
- Failure($client, "refused\n", $userinput);
- }
-
- return 1;
-}
-RegisterHandler("store", \&StoreHandler, 0, 1, 0);
-#
-# Restore a prior version of a resource.
-#
-# Parameters:
-# $cmd - Command keyword.
-# $tail - Remainder of the request which consists of:
-# domain/user - User and auth. domain.
-# namespace - name of resource database.
-# rid - Resource id.
-# $client - socket open on the client.
-#
-# Returns:
-# 1 indicating the caller should not yet exit.
-# Side-effects:
-# Writes a reply to the client.
-#
-sub RestoreHandler {
- my $cmd = shift;
- my $tail = shift;
- my $client = shift;
-
- my $userinput = "$cmd:$tail"; # Only used for logging purposes.
-
- 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/\&$//;
- Reply( $client, "$qresult\n", $userinput);
- } else {
- Failure($client, "error: ".($!+0)." untie(GDBM) Failed ".
- "while attempting restore\n", $userinput);
- }
- } else {
- Failure($client, "error: ".($!+0)." tie(GDBM) Failed ".
- "while attempting restore\n", $userinput);
- }
-
- return 1;
-
-
-}
-RegisterHandler("restore", \&RestoreHandler, 0,1,0);
-
-#
-# Add a chat message to to a discussion board.
-#
-# Parameters:
-# $cmd - Request keyword.
-# $tail - Tail of the command. A colon separated list
-# containing:
-# cdom - Domain on which the chat board lives
-# cnum - Identifier of the discussion group.
-# post - Body of the posting.
-# $client - Socket open on the client.
-# Returns:
-# 1 - Indicating caller should keep on processing.
-#
-# Side-effects:
-# writes a reply to the client.
-#
-#
-sub SendChatHandler {
- my $cmd = shift;
- my $tail = shift;
- my $client = shift;
-
- my $userinput = "$cmd:$tail";
-
- my ($cdom,$cnum,$newpost)=split(/\:/,$tail);
- &chatadd($cdom,$cnum,$newpost);
- Reply($client, "ok\n", $userinput);
-
- return 1;
-}
-RegisterHandler("chatsend", \&SendChatHandler, 0, 1, 0);
-#
-# Retrieve the set of chat messagss from a discussion board.
-#
-# Parameters:
-# $cmd - Command keyword that initiated the request.
-# $tail - Remainder of the request after the command
-# keyword. In this case a colon separated list of
-# chat domain - Which discussion board.
-# chat id - Discussion thread(?)
-# domain/user - Authentication domain and username
-# of the requesting person.
-# $client - Socket open on the client program.
-# Returns:
-# 1 - continue processing
-# Side effects:
-# Response is written to the client.
-#
-sub RetrieveChatHandler {
- my $cmd = shift;
- my $tail = shift;
- my $client = shift;
-
- my $userinput = "$cmd:$tail";
-
- my ($cdom,$cnum,$udom,$uname)=split(/\:/,$tail);
- my $reply='';
- foreach (&getchat($cdom,$cnum,$udom,$uname)) {
- $reply.=&escape($_).':';
- }
- $reply=~s/\:$//;
- Reply($client, $reply."\n", $userinput);
-
-
- return 1;
-}
-RegisterHandler("chatretr", \&RetrieveChatHandler, 0, 1, 0);
-#
-# Initiate a query of an sql database. SQL query repsonses get put in
-# a file for later retrieval. This prevents sql query results from
-# bottlenecking the system. Note that with loncnew, perhaps this is
-# less of an issue since multiple outstanding requests can be concurrently
-# serviced.
-#
-# Parameters:
-# $cmd - COmmand keyword that initiated the request.
-# $tail - Remainder of the command after the keyword.
-# For this function, this consists of a query and
-# 3 arguments that are self-documentingly labelled
-# in the original arg1, arg2, arg3.
-# $client - Socket open on the client.
-# Return:
-# 1 - Indicating processing should continue.
-# Side-effects:
-# a reply is written to $client.
-#
-sub SendQueryHandler {
- my $cmd = shift;
- my $tail = shift;
- my $client = shift;
-
- my $userinput = "$cmd:$tail";
-
- my ($query,$arg1,$arg2,$arg3)=split(/\:/,$tail);
- $query=~s/\n*$//g;
- Reply($client, "". sqlreply("$clientname\&$query".
- "\&$arg1"."\&$arg2"."\&$arg3")."\n",
- $userinput);
-
- return 1;
-}
-RegisterHandler("querysend", \&SendQueryHandler, 0, 1, 0);
-
-#
-# Add a reply to an sql query. SQL queries are done asyncrhonously.
-# The query is submitted via a "querysend" transaction.
-# There it is passed on to the lonsql daemon, queued and issued to
-# mysql.
-# This transaction is invoked when the sql transaction is complete
-# it stores the query results in flie and indicates query completion.
-# presumably local software then fetches this response... I'm guessing
-# the sequence is: lonc does a querysend, we ask lonsql to do it.
-# lonsql on completion of the query interacts with the lond of our
-# client to do a query reply storing two files:
-# - id - The results of the query.
-# - id.end - Indicating the transaction completed.
-# NOTE: id is a unique id assigned to the query and querysend time.
-# Parameters:
-# $cmd - Command keyword that initiated this request.
-# $tail - Remainder of the tail. In this case that's a colon
-# separated list containing the query Id and the
-# results of the query.
-# $client - Socket open on the client.
-# Return:
-# 1 - Indicating that we should continue processing.
-# Side effects:
-# ok written to the client.
-#
-sub ReplyQueryHandler {
- my $cmd = shift;
- my $tail = shift;
- my $client = shift;
-
- my $userinput = "$cmd:$tail";
-
- 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;
- Reply($client, "ok\n", $userinput);
- } else {
- Failure($client, "error: ".($!+0)
- ." IO::File->new Failed ".
- "while attempting queryreply\n", $userinput);
- }
-
-
- return 1;
-}
-RegisterHandler("queryreply", \&ReplyQueryHandler, 0, 1, 0);
-#
-# Process the courseidput query. Not quite sure what this means
-# at the system level sense. It appears a gdbm file in the
-# /home/httpd/lonUsers/$domain/nohist_courseids is tied and
-# a set of entries made in that database.
-#
-# Parameters:
-# $cmd - The command keyword that initiated this request.
-# $tail - Tail of the command. In this case consists of a colon
-# separated list contaning the domain to apply this to and
-# an ampersand separated list of keyword=value pairs.
-# $client - Socket open on the client.
-# Returns:
-# 1 - indicating that processing should continue
-#
-# Side effects:
-# reply is written to the client.
-#
-sub PutCourseIdHandler {
- my $cmd = shift;
- my $tail = shift;
- my $client = shift;
-
- my $userinput = "$cmd:$tail";
-
- my ($udom, $what) = split(/:/, $tail);
- chomp($what);
- my $now=time;
- my @pairs=split(/\&/,$what);
-
- my $hashref = TieDomainHash($udom, "nohist_courseids", &GDBM_WRCREAT());
- if ($hashref) {
- foreach my $pair (@pairs) {
- my ($key,$value)=split(/=/,$pair);
- $hashref->{$key}=$value.':'.$now;
- }
- if (untie(%$hashref)) {
- Reply($client, "ok\n", $userinput);
- } else {
- Failure( $client, "error: ".($!+0)
- ." untie(GDBM) Failed ".
- "while attempting courseidput\n", $userinput);
- }
- } else {
- Failure( $client, "error: ".($!+0)
- ." tie(GDBM) Failed ".
- "while attempting courseidput\n", $userinput);
- }
-
- return 1;
-}
-RegisterHandler("courseidput", \&PutCourseIdHandler, 0, 1, 0);
-
-# Retrieves the value of a course id resource keyword pattern
-# defined since a starting date. Both the starting date and the
-# keyword pattern are optional. If the starting date is not supplied it
-# is treated as the beginning of time. If the pattern is not found,
-# it is treatred as "." matching everything.
-#
-# Parameters:
-# $cmd - Command keyword that resulted in us being dispatched.
-# $tail - The remainder of the command that, in this case, consists
-# of a colon separated list of:
-# domain - The domain in which the course database is
-# defined.
-# since - Optional parameter describing the minimum
-# time of definition(?) of the resources that
-# will match the dump.
-# description - regular expression that is used to filter
-# the dump. Only keywords matching this regexp
-# will be used.
-# $client - The socket open on the client.
-# Returns:
-# 1 - Continue processing.
-# Side Effects:
-# a reply is written to $client.
-sub DumpCourseIdHandler {
- my $cmd = shift;
- my $tail = shift;
- my $client = shift;
-
- my $userinput = "$cmd:$tail";
-
- my ($udom,$since,$description) =split(/:/,$tail);
- if (defined($description)) {
- $description=&unescape($description);
- } else {
- $description='.';
- }
- unless (defined($since)) { $since=0; }
- my $qresult='';
- logthis(" Looking for $description since $since");
- my $hashref = TieDomainHash($udom, "nohist_courseids", &GDBM_WRCREAT());
- if ($hashref) {
- while (my ($key,$value) = each(%$hashref)) {
- my ($descr,$lasttime)=split(/\:/,$value);
- logthis("Got: key = $key descr = $descr time: $lasttime");
- if ($lasttime<$since) {
- logthis("Skipping .. too early");
- next;
- }
- if ($description eq '.') {
- logthis("Adding wildcard match");
- $qresult.=$key.'='.$descr.'&';
- } else {
- my $unescapeVal = &unescape($descr);
- logthis("Matching with $unescapeVal");
- if (eval('$unescapeVal=~/$description/i')) {
- logthis("Adding on match");
- $qresult.="$key=$descr&";
- }
- }
- }
- if (untie(%$hashref)) {
- chop($qresult);
- Reply($client, "$qresult\n", $userinput);
- } else {
- Failure($client, "error: ".($!+0)." untie(GDBM) Failed ".
- "while attempting courseiddump\n", $userinput);
- }
- } else {
- Failure($client, "error: ".($!+0)." tie(GDBM) Failed ".
- "while attempting courseiddump\n", $userinput);
- }
-
-
- return 1;
-}
-RegisterHandler("courseiddump", \&DumpCourseIdHandler, 0, 1, 0);
-#
-# Puts an id to a domains id database.
-#
-# Parameters:
-# $cmd - The command that triggered us.
-# $tail - Remainder of the request other than the command. This is a
-# colon separated list containing:
-# $domain - The domain for which we are writing the id.
-# $pairs - The id info to write... this is and & separated list
-# of keyword=value.
-# $client - Socket open on the client.
-# Returns:
-# 1 - Continue processing.
-# Side effects:
-# reply is written to $client.
-#
-sub PutIdHandler {
- my $cmd = shift;
- my $tail = shift;
- my $client = shift;
-
- my $userinput = "$cmd:$tail";
-
- my ($udom,$what)=split(/:/,$tail);
- chomp($what);
- my @pairs=split(/\&/,$what);
- my $hashref = TieDomainHash($udom, "ids", &GDBM_WRCREAT(),
- "P", $what);
- if ($hashref) {
- foreach my $pair (@pairs) {
- my ($key,$value)=split(/=/,$pair);
- $hashref->{$key}=$value;
- }
- if (untie(%$hashref)) {
- Reply($client, "ok\n", $userinput);
- } else {
- Failure($client, "error: ".($!+0)." untie(GDBM) Failed ".
- "while attempting idput\n", $userinput);
- }
- } else {
- Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ".
- "while attempting idput\n", $userinput);
- }
-
- return 1;
-}
-
-RegisterHandler("idput", \&PutIdHandler, 0, 1, 0);
-#
-# Retrieves a set of id values from the id database.
-# Returns an & separated list of results, one for each requested id to the
-# client.
-#
-# Parameters:
-# $cmd - Command keyword that caused us to be dispatched.
-# $tail - Tail of the command. Consists of a colon separated:
-# domain - the domain whose id table we dump
-# ids Consists of an & separated list of
-# id keywords whose values will be fetched.
-# nonexisting keywords will have an empty value.
-# $client - Socket open on the client.
-#
-# Returns:
-# 1 - indicating processing should continue.
-# Side effects:
-# An & separated list of results is written to $client.
-#
-sub GetIdHandler {
- my $cmd = shift;
- my $tail = shift;
- my $client = shift;
-
- my $userinput = "$client:$tail";
-
- my ($udom,$what)=split(/:/,$tail);
- chomp($what);
- my @queries=split(/\&/,$what);
- my $qresult='';
- my $hashref = TieDomainHash($udom, "ids", &GDBM_READER());
- if ($hashref) {
- for (my $i=0;$i<=$#queries;$i++) {
- $qresult.="$hashref->{$queries[$i]}&";
- }
- if (untie(%$hashref)) {
- $qresult=~s/\&$//;
- Reply($client, "$qresult\n", $userinput);
- } else {
- Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ".
- "while attempting idget\n",$userinput);
- }
- } else {
- Failure($client, "error: ".($!+0)." tie(GDBM) Failed ".
- "while attempting idget\n",$userinput);
- }
-
- return 1;
-}
-
-RegisterHandler("idget", \&GetIdHandler, 0, 1, 0);
-#
-# Process the tmpput command I'm not sure what this does.. Seems to
-# create a file in the lonDaemons/tmp directory of the form $id.tmp
-# where Id is the client's ip concatenated with a sequence number.
-# The file will contain some value that is passed in. Is this e.g.
-# a login token?
-#
-# Parameters:
-# $cmd - The command that got us dispatched.
-# $tail - The remainder of the request following $cmd:
-# In this case this will be the contents of the file.
-# $client - Socket connected to the client.
-# Returns:
-# 1 indicating processing can continue.
-# Side effects:
-# A file is created in the local filesystem.
-# A reply is sent to the client.
-sub TmpPutHandler {
- my $cmd = shift;
- my $what = shift;
- my $client = shift;
-
- my $userinput = "$cmd:$what"; # Reconstruct for logging.
-
-
- 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 $store;
- Reply($client, "$id\n", $userinput);
- } else {
- Failure( $client, "error: ".($!+0)."IO::File->new Failed ".
- "while attempting tmpput\n", $userinput);
- }
- return 1;
-
-}
-RegisterHandler("tmpput", \&TmpPutHandler, 0, 1, 0);
-
-# Processes the tmpget command. This command returns the contents
-# of a temporary resource file(?) created via tmpput.
-#
-# Paramters:
-# $cmd - Command that got us dispatched.
-# $id - Tail of the command, contain the id of the resource
-# we want to fetch.
-# $client - socket open on the client.
-# Return:
-# 1 - Inidcating processing can continue.
-# Side effects:
-# A reply is sent to the client.
-
-#
-sub TmpGetHandler {
- my $cmd = shift;
- my $id = shift;
- my $client = shift;
- my $userinput = "$cmd:$id";
-
- chomp($id);
- $id=~s/\W/\_/g;
- my $store;
- my $execdir=$perlvar{'lonDaemons'};
- if ($store=IO::File->new("$execdir/tmp/$id.tmp")) {
- my $reply=<$store>;
- Reply( $client, "$reply\n", $userinput);
- close $store;
- } else {
- Failure( $client, "error: ".($!+0)."IO::File->new Failed ".
- "while attempting tmpget\n", $userinput);
- }
-
- return 1;
-}
-RegisterHandler("tmpget", \&TmpGetHandler, 0, 1, 0);
-#
-# Process the tmpdel command. This command deletes a temp resource
-# created by the tmpput command.
-#
-# Parameters:
-# $cmd - Command that got us here.
-# $id - Id of the temporary resource created.
-# $client - socket open on the client process.
-#
-# Returns:
-# 1 - Indicating processing should continue.
-# Side Effects:
-# A file is deleted
-# A reply is sent to the client.
-sub TmpDelHandler {
- my $cmd = shift;
- my $id = shift;
- my $client = shift;
-
- my $userinput= "$cmd:$id";
-
- chomp($id);
- $id=~s/\W/\_/g;
- my $execdir=$perlvar{'lonDaemons'};
- if (unlink("$execdir/tmp/$id.tmp")) {
- Reply($client, "ok\n", $userinput);
- } else {
- Failure( $client, "error: ".($!+0)."Unlink tmp Failed ".
- "while attempting tmpdel\n", $userinput);
- }
-
- return 1;
-
-}
-RegisterHandler("tmpdel", \&TmpDelHandler, 0, 1, 0);
-#
-# ls - list the contents of a directory. For each file in the
-# selected directory the filename followed by the full output of
-# the stat function is returned. The returned info for each
-# file are separated by ':'. The stat fields are separated by &'s.
-# Parameters:
-# $cmd - The command that dispatched us (ls).
-# $ulsdir - The directory path to list... I'm not sure what this
-# is relative as things like ls:. return e.g.
-# no_such_dir.
-# $client - Socket open on the client.
-# Returns:
-# 1 - indicating that the daemon should not disconnect.
-# Side Effects:
-# The reply is written to $client.
-#
-sub LsHandler {
- my $cmd = shift;
- my $ulsdir = shift;
- my $client = shift;
-
- my $userinput = "$cmd:$ulsdir";
-
- chomp($ulsdir);
-
- my $ulsout='';
- my $ulsfn;
- logthis("ls for '$ulsdir'");
- if (-e $ulsdir) {
- logthis("ls - directory exists");
- if(-d $ulsdir) {
- logthis("ls $ulsdir is a file");
- if (opendir(LSDIR,$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 '') { $ulsout='empty'; }
- Reply($client, "$ulsout\n", $userinput);
-
-
- return 1;
-}
-RegisterHandler("ls", \&LsHandler, 0, 1, 0);
-
-
-#
-# Processes the setannounce command. This command
-# creates a file named announce.txt in the top directory of
-# the documentn root and sets its contents. The announce.txt file is
-# printed in its entirety at the LonCAPA login page. Note:
-# once the announcement.txt fileis created it cannot be deleted.
-# However, setting the contents of the file to empty removes the
-# announcement from the login page of loncapa so who cares.
-#
-# Parameters:
-# $cmd - The command that got us dispatched.
-# $announcement - The text of the announcement.
-# $client - Socket open on the client process.
-# Retunrns:
-# 1 - Indicating request processing should continue
-# Side Effects:
-# The file {DocRoot}/announcement.txt is created.
-# A reply is sent to $client.
-#
-sub SetAnnounceHandler {
- my $cmd = shift;
- my $announcement = shift;
- my $client = shift;
-
- my $userinput = "$cmd:$announcement";
-
- chomp($announcement);
- $announcement=&unescape($announcement);
- if (my $store=IO::File->new('>'.$perlvar{'lonDocRoot'}.
- '/announcement.txt')) {
- print $store $announcement;
- close $store;
- Reply($client, "ok\n", $userinput);
- } else {
- Failure($client, "error: ".($!+0)."\n", $userinput);
- }
-
- return 1;
-}
-RegisterHandler("setannounce", \&SetAnnounceHandler, 0, 1, 0);
-
-#
-# Return the version of the daemon. This can be used to determine
-# the compatibility of cross version installations or, alternatively to
-# simply know who's out of date and who isn't. Note that the version
-# is returned concatenated with the tail.
-# Parameters:
-# $cmd - the request that dispatched to us.
-# $tail - Tail of the request (client's version?).
-# $client - Socket open on the client.
-#Returns:
-# 1 - continue processing requests.
-# Side Effects:
-# Replies with version to $client.
-sub GetVersionHandler {
- my $client = shift;
- my $tail = shift;
- my $client = shift;
- my $userinput = $client;
-
- Reply($client, &version($userinput)."\n", $userinput);
-
-
- return 1;
-}
-RegisterHandler("version", \&GetVersionHandler, 0, 1, 0);
-
-# Set the current host and domain. This is used to support
-# multihomed systems. Each IP of the system, or even separate daemons
-# on the same IP can be treated as handling a separate lonCAPA virtual
-# machine. This command selects the virtual lonCAPA. The client always
-# knows the right one since it is lonc and it is selecting the domain/system
-# from the hosts.tab file.
-# Parameters:
-# $cmd - Command that dispatched us.
-# $tail - Tail of the command (domain/host requested).
-# $socket - Socket open on the client.
-#
-# Returns:
-# 1 - Indicates the program should continue to process requests.
-# Side-effects:
-# The default domain/system context is modified for this daemon.
-# a reply is sent to the client.
-#
-sub SelectHostHandler {
- my $cmd = shift;
- my $tail = shift;
- my $socket = shift;
-
- my $userinput ="$cmd:$tail";
-
- Reply($client, &sethost($userinput)."\n", $userinput);
-
-
- return 1;
-}
-RegisterHandler("sethost", \&SelectHostHandler, 0, 1, 0);
-
-# Process a request to exit:
-# - "bye" is sent to the client.
-# - The client socket is shutdown and closed.
-# - We indicate to the caller that we should exit.
-# Formal Parameters:
-# $cmd - The command that got us here.
-# $tail - Tail of the command (empty).
-# $client - Socket open on the tail.
-# Returns:
-# 0 - Indicating the program should exit!!
-#
-sub ExitHandler {
- my $cmd = shift;
- my $tail = shift;
- my $client = shift;
-
- my $userinput = "$cmd:$tail";
-
- &logthis("Client $clientip ($clientname) hanging up: $userinput");
- Reply($client, "bye\n", $userinput);
- $client->shutdown(2); # shutdown the socket forcibly.
- $client->close();
-
- return 0;
-}
-RegisterHandler("exit", \&ExitHandler, 0, 1,1);
-RegisterHandler("init", \&ExitHandler, 0, 1,1); # RE-init is like exit.
-RegisterHandler("quit", \&ExitHandler, 0, 1,1); # I like this too!
-#------------------------------------------------------------------------------------
-#
-# Process a Request. Takes a request from the client validates
-# it and performs the operation requested by it. Returns
-# a response to the client.
-#
-# Parameters:
-# request - A string containing the user's request.
-# Returns:
-# 0 - Requested to exit, caller should shut down.
-# 1 - Accept additional requests from the client.
-#
-sub ProcessRequest {
- my $Request = shift;
- my $KeepGoing = 1; # Assume we're not asked to stop.
-
- my $wasenc=0;
- my $userinput = $Request; # for compatibility with oldcode <yeach>
-
-
-# ------------------------------------------------------------ See if encrypted
-
- if($userinput =~ /^enc/) {
- $wasenc = 1;
- $userinput = Decipher($userinput);
- if(! $userinput) {
- Failure($client,"error:Encrypted data without negotiating key");
- return 0; # Break off with this imposter.
- }
- }
- # Split off the request keyword from the rest of the stuff.
-
- my ($command, $tail) = split(/:/, $userinput, 2);
- chomp($command);
- chomp($tail);
-
- Debug("Command received: $command, encoded = $wasenc");
-
-
-# ------------------------------------------------------------- Normal commands
-
- #
- # If the command is in the hash, then execute it via the hash dispatch:
- #
- if(defined $Dispatcher{$command}) {
-
- my $DispatchInfo = $Dispatcher{$command};
- my $Handler = $$DispatchInfo[0];
- my $NeedEncode = $$DispatchInfo[1];
- my $ClientTypes = $$DispatchInfo[2];
- Debug("Matched dispatch hash: mustencode: $NeedEncode ClientType $ClientTypes");
-
- # Validate the request:
-
- my $ok = 1;
- my $requesterprivs = 0;
- if(isClient()) {
- $requesterprivs |= $CLIENT_OK;
- }
- if(isManager()) {
- $requesterprivs |= $MANAGER_OK;
- }
- if($NeedEncode && (!$wasenc)) {
- Debug("Must encode but wasn't: $NeedEncode $wasenc");
- $ok = 0;
- }
- if(($ClientTypes & $requesterprivs) == 0) {
- Debug("Client not privileged to do this operation");
- $ok = 0;
- }
-
- if($ok) {
- Debug("Dispatching to handler $command $tail");
- $KeepGoing = &$Handler($command, $tail, $client);
- } else {
- Debug("Refusing to dispatch because ok is false");
- Failure($client, "refused\n", $userinput);
- }
-
-
-# ------------------------------------------------------------- unknown command
-
- } else {
- # unknown command
- Failure($client, "unknown_cmd\n", $userinput);
- }
-
- return $KeepGoing;
-}
-
#
# GetCertificate: Given a transaction that requires a certificate,
@@ -2763,6 +137,18 @@ sub GetCertificate {
return $clientip;
}
+#
+# Return true if client is a manager.
+#
+sub isManager {
+ return (($ConnectionType eq "manager") || ($ConnectionType eq "both"));
+}
+#
+# Return tru if client can do client functions
+#
+sub isClient {
+ return (($ConnectionType eq "client") || ($ConnectionType eq "both"));
+}
#
@@ -2777,42 +163,42 @@ sub ReadManagerTable {
# Clean out the old table first..
- foreach my $key (keys %managers) {
- delete $managers{$key};
- }
-
- my $tablename = $perlvar{'lonTabDir'}."/managers.tab";
- if (!open (MANAGERS, $tablename)) {
- logthis('<font color="red">No manager table. Nobody can manage!!</font>');
- return;
- }
- while(my $host = <MANAGERS>) {
- chomp($host);
- if ($host =~ "^#") { # Comment line.
- logthis('<font color="green"> Skipping line: '. "$host</font>\n");
- next;
- }
- if (!defined $hostip{$host}) { # This is a non cluster member
+ foreach my $key (keys %managers) {
+ delete $managers{$key};
+ }
+
+ my $tablename = $perlvar{'lonTabDir'}."/managers.tab";
+ if (!open (MANAGERS, $tablename)) {
+ logthis('<font color="red">No manager table. Nobody can manage!!</font>');
+ return;
+ }
+ while(my $host = <MANAGERS>) {
+ chomp($host);
+ if ($host =~ "^#") { # Comment line.
+ logthis('<font color="green"> Skipping line: '. "$host</font>\n");
+ next;
+ }
+ if (!defined $hostip{$host}) { # This is a non cluster member
# The entry is of the form:
# cluname:hostname
# cluname - A 'cluster hostname' is needed in order to negotiate
# the host key.
# hostname- The dns name of the host.
#
- my($cluname, $dnsname) = split(/:/, $host);
-
- my $ip = gethostbyname($dnsname);
- if(defined($ip)) { # bad names don't deserve entry.
- my $hostip = inet_ntoa($ip);
- $managers{$hostip} = $cluname;
- logthis('<font color="green"> registering manager '.
- "$dnsname as $cluname with $hostip </font>\n");
- }
- } else {
- logthis('<font color="green"> existing host'." $host</font>\n");
- $managers{$hostip{$host}} = $host; # Use info from cluster tab if clumemeber
- }
- }
+ my($cluname, $dnsname) = split(/:/, $host);
+
+ my $ip = gethostbyname($dnsname);
+ if(defined($ip)) { # bad names don't deserve entry.
+ my $hostip = inet_ntoa($ip);
+ $managers{$hostip} = $cluname;
+ logthis('<font color="green"> registering manager '.
+ "$dnsname as $cluname with $hostip </font>\n");
+ }
+ } else {
+ logthis('<font color="green"> existing host'." $host</font>\n");
+ $managers{$hostip{$host}} = $host; # Use info from cluster tab if clumemeber
+ }
+ }
}
#
@@ -2846,7 +232,7 @@ sub CopyFile {
if(-e $oldfile) {
- # Read the old file.
+ # Read the old file.
my $oldfh = IO::File->new("< $oldfile");
if(!$oldfh) {
@@ -2899,30 +285,30 @@ sub AdjustHostContents {
my $adjusted;
my $me = $perlvar{'lonHostID'};
- foreach my $line (split(/\n/,$contents)) {
+ foreach my $line (split(/\n/,$contents)) {
if(!(($line eq "") || ($line =~ /^ *\#/) || ($line =~ /^ *$/))) {
chomp($line);
my ($id,$domain,$role,$name,$ip,$maxcon,$idleto,$mincon)=split(/:/,$line);
if ($id eq $me) {
- my $ip = gethostbyname($name);
- my $ipnew = inet_ntoa($ip);
- $ip = $ipnew;
+ my $ip = gethostbyname($name);
+ my $ipnew = inet_ntoa($ip);
+ $ip = $ipnew;
# Reconstruct the host line and append to adjusted:
- my $newline = "$id:$domain:$role:$name:$ip";
- if($maxcon ne "") { # Not all hosts have loncnew tuning params
- $newline .= ":$maxcon:$idleto:$mincon";
- }
- $adjusted .= $newline."\n";
+ my $newline = "$id:$domain:$role:$name:$ip";
+ if($maxcon ne "") { # Not all hosts have loncnew tuning params
+ $newline .= ":$maxcon:$idleto:$mincon";
+ }
+ $adjusted .= $newline."\n";
- } else { # Not me, pass unmodified.
- $adjusted .= $line."\n";
- }
+ } else { # Not me, pass unmodified.
+ $adjusted .= $line."\n";
+ }
} else { # Blank or comment never re-written.
$adjusted .= $line."\n"; # Pass blanks and comments as is.
}
- }
- return $adjusted;
+ }
+ return $adjusted;
}
#
# InstallFile: Called to install an administrative file:
@@ -2945,14 +331,14 @@ sub InstallFile {
my $TempFile = $Filename.".tmp";
# Open the file for write:
-
+
my $fh = IO::File->new("> $TempFile"); # Write to temp.
if(!(defined $fh)) {
&logthis('<font color="red"> Unable to create '.$TempFile."</font>");
return 0;
}
# write the contents of the file:
-
+
print $fh ($Contents);
$fh->close; # In case we ever have a filesystem w. locking
@@ -3035,7 +421,7 @@ sub PushFile {
return "error:$!";
}
&logthis('<font color="green"> Pushfile: backed up '
- .$tablefile." to $backupfile</font>");
+ .$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
@@ -3051,12 +437,13 @@ sub PushFile {
if(!InstallFile($tablefile, $contents)) {
&logthis('<font color="red"> Pushfile: unable to install '
- .$tablefile." $! </font>");
+ .$tablefile." $! </font>");
return "error:$!";
- } else {
+ }
+ else {
&logthis('<font color="green"> Installed new '.$tablefile
."</font>");
-
+
}
@@ -3193,7 +580,7 @@ sub ApplyEdit {
} elsif ($command eq "delete") {
$editor->DeleteLine($p1); # p1 - key p2 null.
} else { # Should not get here!!!
- die "Invalid command given to ApplyEdit $command";
+ die "Invalid command given to ApplyEdit $command"
}
}
#
@@ -3363,8 +750,8 @@ sub catchexception {
$SIG{__DIE__}='DEFAULT';
&status("Catching exception");
&logthis("<font color=red>CRITICAL: "
- ."ABNORMAL EXIT. Child $$ for server $thisserver died through "
- ."a crash with this error msg->[$error]</font>");
+ ."ABNORMAL EXIT. Child $$ for server $thisserver died through "
+ ."a crash with this error msg->[$error]</font>");
&logthis('Famous last words: '.$status.' - '.$lastlog);
if ($client) { print $client "error: $error\n"; }
$server->close();
@@ -3390,11 +777,11 @@ undef $perlvarref;
# ----------------------------- Make sure this process is running from user=www
my $wwwid=getpwnam('www');
if ($wwwid!=$<) {
- my $emailto="$perlvar{'lonAdmEMail'},$perlvar{'lonSysEMail'}";
- my $subj="LON: $currenthostid User ID mismatch";
- system("echo 'User ID mismatch. lond must be run as user www.' |\
+ my $emailto="$perlvar{'lonAdmEMail'},$perlvar{'lonSysEMail'}";
+ my $subj="LON: $currenthostid User ID mismatch";
+ system("echo 'User ID mismatch. lond must be run as user www.' |\
mailto $emailto -s '$subj' > /dev/null");
- exit 1;
+ exit 1;
}
# --------------------------------------------- Check if other instance running
@@ -3402,10 +789,10 @@ if ($wwwid!=$<) {
my $pidfile="$perlvar{'lonDaemons'}/logs/lond.pid";
if (-e $pidfile) {
- my $lfh=IO::File->new("$pidfile");
- my $pide=<$lfh>;
- chomp($pide);
- if (kill 0 => $pide) { die "already running"; }
+ my $lfh=IO::File->new("$pidfile");
+ my $pide=<$lfh>;
+ chomp($pide);
+ if (kill 0 => $pide) { die "already running"; }
}
# ------------------------------------------------------------- Read hosts file
@@ -3418,25 +805,33 @@ $server = IO::Socket::INET->new(LocalPor
Proto => 'tcp',
Reuse => 1,
Listen => 10 )
- or die "making socket: $@\n";
+ or die "making socket: $@\n";
# --------------------------------------------------------- Do global variables
# global variables
my %children = (); # keys are current child process IDs
-my $children = 0; # current number of children
sub REAPER { # takes care of dead children
$SIG{CHLD} = \&REAPER;
&status("Handling child death");
- my $pid = wait;
- if (defined($children{$pid})) {
- &logthis("Child $pid died");
- $children --;
- delete $children{$pid};
- } else {
- &logthis("Unknown Child $pid died");
+ my $pid;
+ do {
+ $pid = waitpid(-1,&WNOHANG());
+ if (defined($children{$pid})) {
+ &logthis("Child $pid died");
+ delete($children{$pid});
+ } elsif ($pid > 0) {
+ &logthis("Unknown Child $pid died");
+ }
+ } while ( $pid > 0 );
+ foreach my $child (keys(%children)) {
+ $pid = waitpid($child,&WNOHANG());
+ if ($pid > 0) {
+ &logthis("Child $child - $pid looks like we missed it's death");
+ delete($children{$pid});
+ }
}
&status("Finished Handling child death");
}
@@ -3492,12 +887,14 @@ sub ReadHostTable {
open (CONFIG,"$perlvar{'lonTabDir'}/hosts.tab") || die "Can't read host file";
while (my $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; }
+ if (!($configline =~ /^\s*\#/)) {
+ 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; }
+ }
}
close(CONFIG);
}
@@ -3571,17 +968,17 @@ sub checkchildren {
&status("Checking on the children (waiting for reports)");
foreach (sort keys %children) {
unless (-e "$docdir/lon-status/londchld/$_.txt") {
- eval {
- alarm(300);
- &logthis('Child '.$_.' did not respond');
- kill 9 => $_;
- #$emailto="$perlvar{'lonAdmEMail'},$perlvar{'lonSysEMail'}";
- #$subj="LON: $currenthostid killed lond process $_";
- #my $result=`echo 'Killed lond process $_.' | mailto $emailto -s '$subj' > /dev/null`;
- #$execdir=$perlvar{'lonDaemons'};
- #$result=`/bin/cp $execdir/logs/lond.log $execdir/logs/lond.log.$_`;
- alarm(0);
- }
+ eval {
+ alarm(300);
+ &logthis('Child '.$_.' did not respond');
+ kill 9 => $_;
+ #$emailto="$perlvar{'lonAdmEMail'},$perlvar{'lonSysEMail'}";
+ #$subj="LON: $currenthostid killed lond process $_";
+ #my $result=`echo 'Killed lond process $_.' | mailto $emailto -s '$subj' > /dev/null`;
+ #$execdir=$perlvar{'lonDaemons'};
+ #$result=`/bin/cp $execdir/logs/lond.log $execdir/logs/lond.log.$_`;
+ alarm(0);
+ }
}
}
$SIG{ALRM} = 'DEFAULT';
@@ -3617,10 +1014,7 @@ sub Debug {
# reply - Text to send to client.
# request - Original request from client.
#
-# Note: This increments Transactions
-#
sub Reply {
- alarm(120);
my $fd = shift;
my $reply = shift;
my $request = shift;
@@ -3628,33 +1022,6 @@ sub Reply {
print $fd $reply;
Debug("Request was $request Reply was $reply");
- $Transactions++;
- alarm(0);
-
-
-}
-#
-# 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
@@ -3662,19 +1029,17 @@ sub logstatus {
&status("Doing logging");
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/londstatus.txt");
+ print $fh $$."\t".$clientname."\t".$currenthostid."\t".$status."\t".$lastlog."\n";
+ $fh->close();
}
&status("Finished londstatus.txt");
{
my $fh=IO::File->new(">$docdir/lon-status/londchld/$$.txt");
- print $fh $status."\n".$lastlog."\n".time;
- $fh->close();
+ print $fh $status."\n".$lastlog."\n".time;
+ $fh->close();
}
- ResetStatistics;
&status("Finished logging");
-
}
sub initnewstatus {
@@ -3696,11 +1061,8 @@ sub status {
my $what=shift;
my $now=time;
my $local=localtime($now);
- my $status = "lond: $what $local ";
- if($Transactions) {
- $status .= " Transactions: $Transactions Failed; $Failures";
- }
- $0=$status;
+ $status=$local.': '.$what;
+ $0='lond: '.$what.' '.$local;
}
# -------------------------------------------------------- Escape Special Chars
@@ -3732,11 +1094,12 @@ sub reconlonc {
&logthis("lonc at pid $loncpid responding, sending USR1");
kill USR1 => $loncpid;
} else {
- &logthis("<font color=red>CRITICAL: "
- ."lonc at pid $loncpid not responding, giving up</font>");
+ &logthis(
+ "<font color=red>CRITICAL: "
+ ."lonc at pid $loncpid not responding, giving up</font>");
}
} else {
- &logthis('<font color=red>CRITICAL: lonc not running, giving up</font>');
+ &logthis('<font color=red>CRITICAL: lonc not running, giving up</font>');
}
}
@@ -3748,7 +1111,7 @@ sub subreply {
my $sclient=IO::Socket::UNIX->new(Peer =>"$peerfile",
Type => SOCK_STREAM,
Timeout => 10)
- or return "con_lost";
+ or return "con_lost";
print $sclient "$cmd\n";
my $answer=<$sclient>;
chomp($answer);
@@ -3757,22 +1120,22 @@ sub subreply {
}
sub reply {
- my ($cmd,$server)=@_;
- my $answer;
- if ($server ne $currenthostid) {
- $answer=subreply($cmd,$server);
- if ($answer eq 'con_lost') {
- $answer=subreply("ping",$server);
- if ($answer ne $server) {
- &logthis("sub reply: answer != server answer is $answer, server is $server");
- &reconlonc("$perlvar{'lonSockDir'}/$server");
- }
- $answer=subreply($cmd,$server);
- }
- } else {
- $answer='self_reply';
- }
- return $answer;
+ my ($cmd,$server)=@_;
+ my $answer;
+ if ($server ne $currenthostid) {
+ $answer=subreply($cmd,$server);
+ if ($answer eq 'con_lost') {
+ $answer=subreply("ping",$server);
+ if ($answer ne $server) {
+ &logthis("sub reply: answer != server answer is $answer, server is $server");
+ &reconlonc("$perlvar{'lonSockDir'}/$server");
+ }
+ $answer=subreply($cmd,$server);
+ }
+ } else {
+ $answer='self_reply';
+ }
+ return $answer;
}
# -------------------------------------------------------------- Talk to lonsql
@@ -3791,7 +1154,7 @@ sub subsqlreply {
my $sclient=IO::Socket::UNIX->new(Peer =>"$peerfile",
Type => SOCK_STREAM,
Timeout => 10)
- or return "con_lost";
+ or return "con_lost";
print $sclient "$cmd\n";
my $answer=<$sclient>;
chomp($answer);
@@ -3803,14 +1166,11 @@ sub subsqlreply {
sub propath {
my ($udom,$uname)=@_;
- Debug("Propath:$udom:$uname");
$udom=~s/\W//g;
$uname=~s/\W//g;
- Debug("Propath2:$udom:$uname");
my $subdir=$uname.'__';
$subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
my $proname="$perlvar{'lonUsersDir'}/$udom/$subdir/$uname";
- Debug("Propath returning $proname");
return $proname;
}
@@ -3861,7 +1221,6 @@ $SIG{USR2} = \&UpdateHosts;
ReadHostTable;
-
# --------------------------------------------------------------
# Accept connections. When a connection comes in, it is validated
# and if good, a child process is created to process transactions
@@ -3877,6 +1236,7 @@ while (1) {
sub make_new_child {
my $pid;
+ my $cipher;
my $sigset;
$client = shift;
@@ -3887,7 +1247,7 @@ sub make_new_child {
$sigset = POSIX::SigSet->new(SIGINT);
sigprocmask(SIG_BLOCK, $sigset)
or die "Can't block SIGINT for fork: $!\n";
-
+
die "fork: $!" unless defined ($pid = fork);
$client->sockopt(SO_KEEPALIVE, 1); # Enable monitoring of
@@ -3898,15 +1258,24 @@ sub make_new_child {
# the pid hash.
#
my $caller = getpeername($client);
- my ($port,$iaddr)=unpack_sockaddr_in($caller);
- $clientip=inet_ntoa($iaddr);
+ 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);
+ } else {
+ &logthis("Unable to determine clinetip");
+ $clientip='Unavailable';
+ }
if ($pid) {
# Parent records the child's birth and returns.
sigprocmask(SIG_UNBLOCK, $sigset)
or die "Can't unblock SIGINT for fork: $!\n";
$children{$pid} = $clientip;
- $children++;
&status('Started child '.$pid);
return;
} else {
@@ -3923,11 +1292,11 @@ sub make_new_child {
sigprocmask(SIG_UNBLOCK, $sigset)
or die "Can't unblock SIGINT for fork: $!\n";
-
-
+ my $tmpsnum=0;
+#---------------------------------------------------- kerberos 5 initialization
&Authen::Krb5::init_context();
&Authen::Krb5::init_ets();
-
+
&status('Accepted connection');
# =============================================================================
# do something with the connection
@@ -3954,7 +1323,7 @@ sub make_new_child {
&status("Waiting for init from $clientip $clientname");
&logthis('<font color="yellow">INFO: Connection, '.
$clientip.
- " ($clientname) connection type = $ConnectionType </font>" );
+ " ($clientname) connection type = $ConnectionType </font>" );
&status("Connecting $clientip ($clientname))");
my $remotereq=<$client>;
$remotereq=~s/[^\w:]//g;
@@ -3962,23 +1331,27 @@ sub make_new_child {
&sethost("sethost:$perlvar{'lonHostID'}");
my $challenge="$$".time;
print $client "$challenge\n";
- &status("Waiting for challenge reply from $clientip ($clientname)");
+ &status(
+ "Waiting for challenge reply from $clientip ($clientname)");
$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>");
+ &logthis(
+ "<font color=blue>WARNING: $clientip did not reply challenge</font>");
&status('No challenge reply '.$clientip);
}
} else {
- &logthis("<font color=blue>WARNING: "
+ &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>");
+ &logthis(
+ "<font color=blue>WARNING: Unknown client $clientip</font>");
&status('Hung up on '.$clientip);
}
if ($clientok) {
@@ -3994,15 +1367,1480 @@ sub make_new_child {
}
&logthis("<font color=green>Established connection: $clientname</font>");
&status('Will listen to '.$clientname);
+# ------------------------------------------------------------ Process requests
+ while (my $userinput=<$client>) {
+ chomp($userinput);
+ Debug("Request = $userinput\n");
+ &status('Processing '.$clientname.': '.$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/) { # client only
+ if(isClient) {
+ print $client "$currenthostid\n";
+ } else {
+ Reply($client, "refused\n", $userinput);
+ }
+# ------------------------------------------------------------------------ pong
+ }elsif ($userinput =~ /^pong/) { # client only
+ if(isClient) {
+ my $reply=&reply("ping",$clientname);
+ print $client "$currenthostid:$reply\n";
+ } else {
+ Reply($client, "refused\n", $userinput);
+ }
+# ------------------------------------------------------------------------ ekey
+ } elsif ($userinput =~ /^ekey/) { # ok for both clients & mgrs
+ 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;
+ print $client "$buildkey\n";
+# ------------------------------------------------------------------------ load
+ } elsif ($userinput =~ /^load/) { # client only
+ if (isClient) {
+ 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";
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+# -------------------------------------------------------------------- userload
+ } elsif ($userinput =~ /^userload/) { # client only
+ if(isClient) {
+ my $userloadpercent=&userload();
+ print $client "$userloadpercent\n";
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+#
+# Transactions requiring encryption:
+#
+# ----------------------------------------------------------------- currentauth
+ } elsif ($userinput =~ /^currentauth/) {
+ if (($wasenc==1) && isClient) { # Encoded & client only.
+ my ($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 {
+ Reply($client, "refused\n", $userinput);
+
+ }
+#--------------------------------------------------------------------- pushfile
+ } elsif($userinput =~ /^pushfile/) { # encoded & manager.
+ if(($wasenc == 1) && isManager) {
+ my $cert = GetCertificate($userinput);
+ if(ValidManager($cert)) {
+ my $reply = PushFile($userinput);
+ print $client "$reply\n";
+ } else {
+ print $client "refused\n";
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+#--------------------------------------------------------------------- reinit
+ } elsif($userinput =~ /^reinit/) { # Encoded and manager
+ if (($wasenc == 1) && isManager) {
+ my $cert = GetCertificate($userinput);
+ if(ValidManager($cert)) {
+ chomp($userinput);
+ my $reply = ReinitProcess($userinput);
+ print $client "$reply\n";
+ } else {
+ print $client "refused\n";
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+ }
+#------------------------------------------------------------------------- edit
+ } elsif ($userinput =~ /^edit/) { # encoded and manager:
+ if(($wasenc ==1) && (isManager)) {
+ my $cert = GetCertificate($userinput);
+ if(ValidManager($cert)) {
+ my($command, $filetype, $script) = split(/:/, $userinput);
+ if (($filetype eq "hosts") || ($filetype eq "domain")) {
+ if($script ne "") {
+ Reply($client, EditFile($userinput));
+ } else {
+ Reply($client,"refused\n",$userinput);
+ }
+ } else {
+ Reply($client,"refused\n",$userinput);
+ }
+ } else {
+ Reply($client,"refused\n",$userinput);
+ }
+ } else {
+ Reply($client,"refused\n",$userinput);
+ }
+# ------------------------------------------------------------------------ auth
+ } elsif ($userinput =~ /^auth/) { # Encoded and client only.
+ if (($wasenc==1) && isClient) {
+ 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') {
+ my $null=pack("C",0);
+ unless ($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') {
+ my $null=pack("C",0);
+ unless ($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 $client "unknown_user\n";
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+# ---------------------------------------------------------------------- passwd
+ } elsif ($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", $userinput);
- ResetStatistics();
+ }
+# ---------------------------------------------------------------------- update
+ } elsif ($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);
-# ------------------------------------------------------------ Process requests
- my $KeepGoing = 1;
- while ((my $userinput=GetRequest) && $KeepGoing) {
- $KeepGoing = ProcessRequest($userinput);
-# -------------------------------------------------------------------- complete
+ }
+# -------------------------------------- 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 =~ /^([^\/]+)\/([^\/]+)\/(.+)$/);
+ my $udir=propath($udom,$uname).'/userfiles';
+ unless (-e $udir) { mkdir($udir,0770); }
+ if (-e $udir) {
+ $ufile=~s/^[\.\~]+//;
+ my $path = $udir;
+ if ($ufile =~/(.+)\/([^\/]+)$/) {
+ 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", $userinput);
+ }
+# ------------------------------------------ authenticate access to a user file
+ } elsif ($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\.$fname\=|) { $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 $client &unsub($client,$fname,$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);
+ $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);
+ my %hash;
+ if (tie(%hash,'GDBM_File',
+ "$proname/$namespace.db",
+ &GDBM_WRCREAT(),0640)) {
+ 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 $now=time;
+ unless ($namespace=~/^nohist\_/) {
+ my $hfh;
+ if (
+ $hfh=IO::File->new(">>$proname/$namespace.hist")
+ ) { print $hfh "P:$now:$what\n"; }
+ }
+ my @pairs=split(/\&/,$what);
+ my %hash;
+ if (tie(%hash,'GDBM_File',
+ "$proname/$namespace.db",
+ &GDBM_WRCREAT(),0640)) {
+ 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 $hfh;
+ if (
+ $hfh=IO::File->new(">>$proname/$namespace.hist")
+ ) {
+ print $hfh "P:$now:$exedom:$exeuser:$what\n";
+ }
+ }
+ my @pairs=split(/\&/,$what);
+ my %hash;
+ if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_WRCREAT(),0640)) {
+ 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 $hfh;
+ if (
+ $hfh=IO::File->new(">>$proname/$namespace.hist")
+ ) {
+ print $hfh "D:$now:$exedom:$exeuser:$what\n";
+ }
+ }
+ my @rolekeys=split(/\&/,$what);
+ my %hash;
+ if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_WRCREAT(),0640)) {
+ 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 $now=time;
+ unless ($namespace=~/^nohist\_/) {
+ my $hfh;
+ if (
+ $hfh=IO::File->new(">>$proname/$namespace.hist")
+ ) { print $hfh "D:$now:$what\n"; }
+ }
+ my @keys=split(/\&/,$what);
+ my %hash;
+ if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_WRCREAT(),0640)) {
+ 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 $now=time;
+ unless ($namespace=~/^nohist\_/) {
+ my $hfh;
+ if (
+ $hfh=IO::File->new(">>$proname/$namespace.hist")
+ ) { print $hfh "P:$now:$rid:$what\n"; }
+ }
+ my @pairs=split(/\&/,$what);
+ my %hash;
+ if (tie(%hash,'GDBM_File',"$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 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,$value)=split(/=/,$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";
+ }
+ } 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)=split(/\:/,$value);
+ if ($lasttime<$since) { next; }
+ if ($description 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";
+ }
+ } 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 $hfh;
+ if (
+ $hfh=IO::File->new(">>$proname.hist")
+ ) { print $hfh "P:$now:$what\n"; }
+ }
+ my @pairs=split(/\&/,$what);
+ my %hash;
+ if (tie(%hash,'GDBM_File',"$proname.db",&GDBM_WRCREAT(),0640)) {
+ 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", $userinput);
+
+ }
+# -------------------------------------------------------------------------- ls
+ } elsif ($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.
+ $client->close();
+ last;
+
+# ---------------------------------- set current host/domain
+ } elsif ($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";
+ }
+# ------------------------------------------------------------- unknown command
+
+ } else {
+ # unknown command
+ print $client "unknown_cmd\n";
+ }
+# -------------------------------------------------------------------- complete
+ alarm(0);
&status('Listening to '.$clientname);
}
# --------------------------------------------- client unknown or fishy, refuse
@@ -4039,14 +2877,14 @@ sub make_new_child {
# user - Name of the user for which the role is being put.
# authtype - The authentication type associated with the user.
#
-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
- &logthis("request is $request");
if($request =~ /^(\/$domain\/_au)$/) { # It's an author rolesput...
my $execdir = $perlvar{'lonDaemons'};
my $userhome= "/home/$user" ;
@@ -4054,231 +2892,39 @@ sub ManagePermissions {
system("$execdir/lchtmldir $userhome $user $authtype");
}
}
-
-#
-# Return the full path of a user password file, whether it exists or not.
-# Parameters:
-# domain - Domain in which the password file lives.
-# user - name of the user.
-# Returns:
-# Full passwd path:
-#
-sub PasswordPath {
- my $domain = shift;
- my $user = shift;
-
- my $path = &propath($domain, $user);
- $path .= "/passwd";
-
- return $path;
-}
-
-# Password Filename
-# Returns the path to a passwd file given domain and user... only if
-# it exists.
-# Parameters:
-# domain - Domain in which to search.
-# user - username.
-# Returns:
-# - If the password file exists returns its path.
-# - If the password file does not exist, returns undefined.
-#
-sub PasswordFilename {
- my $domain = shift;
- my $user = shift;
-
- Debug ("PasswordFilename called: dom = $domain user = $user");
-
- my $path = PasswordPath($domain, $user);
- Debug("PasswordFilename got path: $path");
- if(-e $path) {
- return $path;
- } else {
- return undef;
- }
-}
-
-#
-# Rewrite the contents of the user's passwd file.
-# Parameters:
-# domain - domain of the user.
-# name - User's name.
-# contents - New contents of the file.
-# Returns:
-# 0 - Failed.
-# 1 - Success.
-#
-sub RewritePwFile {
- my $domain = shift;
- my $user = shift;
- my $contents = shift;
-
- my $file = PasswordFilename($domain, $user);
- if (defined $file) {
- my $pf = IO::File->new(">$file");
- if($pf) {
- print $pf "$contents\n";
- return 1;
- } else {
- return 0;
- }
- } else {
- return 0;
- }
-
-}
#
# GetAuthType - Determines the authorization type of a user in a domain.
# Returns the authorization type or nouser if there is no such user.
#
-sub GetAuthType {
+sub GetAuthType
+{
my $domain = shift;
my $user = shift;
Debug("GetAuthType( $domain, $user ) \n");
- my $passwdfile = PasswordFilename($domain, $user);
- if( defined $passwdfile ) {
+ my $proname = &propath($domain, $user);
+ my $passwdfile = "$proname/passwd";
+ if( -e $passwdfile ) {
my $pf = IO::File->new($passwdfile);
my $realpassword = <$pf>;
chomp($realpassword);
Debug("Password info = $realpassword\n");
- return $realpassword;
- } else {
- Debug("Returning nouser");
- return "nouser";
- }
-}
-
-#
-# Validate a user given their domain, name and password. This utility
-# function is used by both AuthenticateHandler and ChangePasswordHandler
-# to validate the login credentials of a user.
-# Parameters:
-# $domain - The domain being logged into (this is required due to
-# the capability for multihomed systems.
-# $user - The name of the user being validated.
-# $password - The user's propoposed password.
-#
-# Returns:
-# 1 - The domain,user,pasword triplet corresponds to a valid
-# user.
-# 0 - The domain,user,password triplet is not a valid user.
-#
-sub ValidateUser {
- my $domain = shift;
- my $user = shift;
- my $password= shift;
-
- # 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,
- $contentpwd);
+ my ($authtype, $contentpwd) = split(/:/, $realpassword);
+ Debug("Authtype = $authtype, content = $contentpwd\n");
+ my $availinfo = '';
+ if($authtype eq 'krb4' or $authtype eq 'krb5') {
+ $availinfo = $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 "$authtype:$availinfo";
+ }
+ else {
+ Debug("Returning nouser");
+ return "nouser";
}
- return $validated;
}
-#
-# Add a line to the subscription list?
-#
sub addline {
my ($fname,$hostid,$ip,$newline)=@_;
my $contents;
@@ -4298,9 +2944,7 @@ sub addline {
$sh->close();
return $found;
}
-#
-# Get chat messages.
-#
+
sub getchat {
my ($cdom,$cname,$udom,$uname)=@_;
my %hash;
@@ -4325,9 +2969,7 @@ sub getchat {
}
return (@participants,@entries);
}
-#
-# Add a chat message
-#
+
sub chatadd {
my ($cdom,$cname,$newchat)=@_;
my %hash;
@@ -4386,7 +3028,7 @@ sub currentversion {
my $version=-1;
my $ulsdir='';
if ($fname=~/^(.+)\/[^\/]+$/) {
- $ulsdir=$1;
+ $ulsdir=$1;
}
my ($fnamere1,$fnamere2);
# remove version if already specified
@@ -4443,8 +3085,8 @@ sub subscribe {
symlink($root.'.'.$extension,
$root.'.'.$currentversion.'.'.$extension);
unless ($extension=~/\.meta$/) {
- symlink($root.'.'.$extension.'.meta',
- $root.'.'.$currentversion.'.'.$extension.'.meta');
+ symlink($root.'.'.$extension.'.meta',
+ $root.'.'.$currentversion.'.'.$extension.'.meta');
}
}
}
@@ -4498,35 +3140,23 @@ sub make_passwd_file {
print $pf "localauth:$npass\n";
}
} 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 add of privileged account blocked<<<");
- return "no_priv_account_error\n";
- }
-
- #
- my $execpath="$perlvar{'lonDaemons'}/"."lcuseradd";
-
- &Debug("Executing external: ".$execpath);
- &Debug("user = ".$uname.", Password =". $npass);
- my $se = IO::File->new("|$execpath > $perlvar{'lonDaemons'}/logs/lcuseradd.log");
- print $se "$uname\n";
- print $se "$npass\n";
- print $se "$npass\n";
-
- my $useraddok = $?;
- if($useraddok > 0) {
- my $lcstring = lcuseraddstrerror($useraddok);
- &logthis("Failed lcuseradd: $lcstring");
- return "error: lcuseradd failed: $lcstring\n";
+ {
+ my $execpath="$perlvar{'lonDaemons'}/"."lcuseradd";
+ {
+ &Debug("Executing external: ".$execpath);
+ &Debug("user = ".$uname.", Password =". $npass);
+ my $se = IO::File->new("|$execpath > $perlvar{'lonDaemons'}/logs/lcuseradd.log");
+ print $se "$uname\n";
+ print $se "$npass\n";
+ print $se "$npass\n";
+ }
+ my $useraddok = $?;
+ if($useraddok > 0) {
+ &logthis("Failed lcuseradd: ".&lcuseraddstrerror($useraddok));
+ }
+ my $pf = IO::File->new(">$passfilename");
+ print $pf "unix:\n";
}
- my $pf = IO::File->new(">$passfilename");
- print $pf "unix:\n";
-
} elsif ($umode eq 'none') {
{
my $pf = IO::File->new(">$passfilename");
@@ -4540,10 +3170,8 @@ sub make_passwd_file {
sub sethost {
my ($remotereq) = @_;
- Debug("sethost got $remotereq");
my (undef,$hostid)=split(/:/,$remotereq);
if (!defined($hostid)) { $hostid=$perlvar{'lonHostID'}; }
- Debug("sethost attempting to set host $hostid");
if ($hostip{$perlvar{'lonHostID'}} eq $hostip{$hostid}) {
$currenthostid=$hostid;
$currentdomainid=$hostdom{$hostid};
@@ -4561,10 +3189,8 @@ sub version {
$remoteVERSION=(split(/:/,$userinput))[1];
return "version:$VERSION";
}
-############## >>>>>>>>>>>>>>>>>>>>>>>>>> FUTUREWORK <<<<<<<<<<<<<<<<<<<<<<<<<<<<
+
#There is a copy of this in lonnet.pm
-# Can we hoist these lil' things out into common places?
-#
sub userload {
my $numusers=0;
{