--- loncom/lond 2004/10/19 10:57:06 1.262 +++ loncom/lond 2008/06/26 19:54:15 1.404 @@ -2,7 +2,7 @@ # The LearningOnline Network # lond "LON Daemon" Server (port "LOND" 5663) # -# $Id: lond,v 1.262 2004/10/19 10:57:06 foxr Exp $ +# $Id: lond,v 1.404 2008/06/26 19:54:15 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -31,44 +31,44 @@ use strict; use lib '/home/httpd/lib/perl/'; +use LONCAPA; use LONCAPA::Configuration; use IO::Socket; use IO::File; #use Apache::File; -use Symbol; use POSIX; use Crypt::IDEA; use LWP::UserAgent(); +use Digest::MD5 qw(md5_hex); use GDBM_File; use Authen::Krb4; use Authen::Krb5; -use lib '/home/httpd/lib/perl/'; use localauth; use localenroll; +use localstudentphoto; use File::Copy; -use LONCAPA::ConfigFileEdit; +use File::Find; use LONCAPA::lonlocal; use LONCAPA::lonssl; use Fcntl qw(:flock); +use Apache::lonnet; my $DEBUG = 0; # Non zero to enable debug log entries. my $status=''; my $lastlog=''; -my $VERSION='$Revision: 1.262 $'; #' stupid emacs +my $VERSION='$Revision: 1.404 $'; #' stupid emacs my $remoteVERSION; my $currenthostid="default"; my $currentdomainid; my $client; my $clientip; # IP address of client. -my $clientdns; # DNS name of client. my $clientname; # LonCAPA name of client. my $server; -my $thisserver; # DNS of us. my $keymode; @@ -84,11 +84,6 @@ my $tmpsnum = 0; # Id of tmpputs. my $ConnectionType; -my %hostid; # ID's for hosts in cluster by ip. -my %hostdom; # LonCAPA domain for hosts in cluster. -my %hostip; # IPs for hosts in cluster. -my %hostdns; # ID's of hosts looked up by DNS name. - my %managers; # Ip -> manager names my %perlvar; # Will have the apache conf defined perl vars. @@ -112,20 +107,20 @@ my %Dispatcher; # my $lastpwderror = 13; # Largest error number from lcpasswd. my @passwderrors = ("ok", - "lcpasswd must be run as user 'www'", - "lcpasswd got incorrect number of arguments", - "lcpasswd did not get the right nubmer of input text lines", - "lcpasswd too many simultaneous pwd changes in progress", - "lcpasswd User does not exist.", - "lcpasswd Incorrect current passwd", - "lcpasswd Unable to su to root.", - "lcpasswd Cannot set new passwd.", - "lcpasswd Username has invalid characters", - "lcpasswd Invalid characters in password", - "lcpasswd User already exists", - "lcpasswd Something went wrong with user addition.", - "lcpasswd Password mismatch", - "lcpasswd Error filename is invalid"); + "pwchange_failure - lcpasswd must be run as user 'www'", + "pwchange_failure - lcpasswd got incorrect number of arguments", + "pwchange_failure - lcpasswd did not get the right nubmer of input text lines", + "pwchange_failure - lcpasswd too many simultaneous pwd changes in progress", + "pwchange_failure - lcpasswd User does not exist.", + "pwchange_failure - lcpasswd Incorrect current passwd", + "pwchange_failure - lcpasswd Unable to su to root.", + "pwchange_failure - lcpasswd Cannot set new passwd.", + "pwchange_failure - lcpasswd Username has invalid characters", + "pwchange_failure - lcpasswd Invalid characters in password", + "pwchange_failure - lcpasswd User already exists", + "pwchange_failure - lcpasswd Something went wrong with user addition.", + "pwchange_failure - lcpasswd Password mismatch", + "pwchange_failure - lcpasswd Error filename is invalid"); # The array below are lcuseradd error strings.: @@ -140,7 +135,7 @@ my @adderrors = ("ok", "lcuseradd Unable to make www member of users's group", "lcuseradd Unable to su to root", "lcuseradd Unable to set password", - "lcuseradd Usrname has invalid characters", + "lcuseradd Username has invalid characters", "lcuseradd Password has an invalid character", "lcuseradd User already exists", "lcuseradd Could not add user.", @@ -176,20 +171,16 @@ sub ResetStatistics { # $Socket - Socket open on client. # $initcmd - The full text of the init command. # -# Implicit inputs: -# $clientdns - The DNS name of the remote client. -# $thisserver - Our DNS name. -# # Returns: # IDEA session key on success. # undef on failure. # sub LocalConnection { my ($Socket, $initcmd) = @_; - Debug("Attempting local connection: $initcmd client: $clientdns me: $thisserver"); - if($clientdns ne $thisserver) { + Debug("Attempting local connection: $initcmd client: $clientip"); + if($clientip ne "127.0.0.1") { &logthis(' LocalConnection rejecting non local: ' - ."$clientdns ne $thisserver "); + ."$clientip ne 127.0.0.1 "); close $Socket; return undef; } else { @@ -423,7 +414,7 @@ sub ReadManagerTable { if ($host =~ "^#") { # Comment line. next; } - if (!defined $hostip{$host}) { # This is a non cluster member + if (!defined &Apache::lonnet::get_host_ip($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 @@ -441,7 +432,7 @@ sub ReadManagerTable { } } else { logthis(' existing host'." $host\n"); - $managers{$hostip{$host}} = $host; # Use info from cluster tab if clumemeber + $managers{&Apache::lonnet::get_host_ip($host)} = $host; # Use info from cluster tab if clumemeber } } } @@ -473,39 +464,11 @@ sub CopyFile { my ($oldfile, $newfile) = @_; - # The file must exist: - - if(-e $oldfile) { - - # Read the old file. - - my $oldfh = IO::File->new("< $oldfile"); - if(!$oldfh) { - return 0; - } - my @contents = <$oldfh>; # Suck in the entire file. - - # write the backup file: - - my $newfh = IO::File->new("> $newfile"); - if(!(defined $newfh)){ - return 0; - } - my $lines = scalar @contents; - for (my $i =0; $i < $lines; $i++) { - print $newfh ($contents[$i]); - } - - $oldfh->close; - $newfh->close; - - chmod(0660, $newfile); - - return 1; - - } else { - return 0; + if (! copy($oldfile,$newfile)) { + return 0; } + chmod(0660, $newfile); + return 1; } # # Host files are passed out with externally visible host IPs. @@ -530,30 +493,30 @@ 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 $adjusted; } # # InstallFile: Called to install an administrative file: @@ -862,16 +825,14 @@ sub AdjustOurHost { # Use the config line to get my hostname. # Use gethostbyname to translate that into an IP address. # - my ($id,$domain,$role,$name,$ip,$maxcon,$idleto,$mincon) = split(/:/,$ConfigLine); - my $BinaryIp = gethostbyname($name); - my $ip = inet_ntoa($ip); + my ($id,$domain,$role,$name,$maxcon,$idleto,$mincon) = split(/:/,$ConfigLine); # # Reassemble the config line from the elements in the list. # Note that if the loncnew items were not present before, they will # be now even if they would be empty # my $newConfigLine = $id; - foreach my $item ($domain, $role, $name, $ip, $maxcon, $idleto, $mincon) { + foreach my $item ($domain, $role, $name, $maxcon, $idleto, $mincon) { $newConfigLine .= ":".$item; } # Replace the line: @@ -917,11 +878,11 @@ sub EditFile { # Split the command into it's pieces: edit:filetype:script - my ($request, $filetype, $script) = split(/:/, $request,3); # : in script + my ($cmd, $filetype, $script) = split(/:/, $request,3); # : in script # Check the pre-coditions for success: - if($request != "edit") { # Something is amiss afoot alack. + if($cmd != "edit") { # Something is amiss afoot alack. return "error:edit request detected, but request != 'edit'\n"; } if( ($filetype ne "hosts") && @@ -966,105 +927,6 @@ sub EditFile { return "ok\n"; } -#--------------------------------------------------------------- -# -# Manipulation of hash based databases (factoring out common code -# for later use as we refactor. -# -# Ties a domain level resource file to a hash. -# If requested a history entry is created in the associated hist file. -# -# Parameters: -# domain - Name of the domain in which the resource file lives. -# namespace - Name of the hash within that domain. -# how - How to tie the hash (e.g. GDBM_WRCREAT()). -# loghead - Optional parameter, if present a log entry is created -# in the associated history file and this is the first part -# of that entry. -# logtail - Goes along with loghead, The actual logentry is of the -# form $loghead::logtail. -# Returns: -# Reference to a hash bound to the db file or alternatively undef -# if the tie failed. -# -sub tie_domain_hash { - my ($domain,$namespace,$how,$loghead,$logtail) = @_; - - # Filter out any whitespace in the domain name: - - $domain =~ s/\W//g; - - # We have enough to go on to tie the hash: - - my $user_top_dir = $perlvar{'lonUsersDir'}; - my $domain_dir = $user_top_dir."/$domain"; - my $resource_file = $domain_dir."/$namespace.db"; - my %hash; - if(tie(%hash, 'GDBM_File', $resource_file, $how, 0640)) { - if (defined($loghead)) { # Need to log the operation. - my $logFh = IO::File->new(">>$domain_dir/$namespace.hist"); - if($logFh) { - my $timestamp = time; - print $logFh "$loghead:$timestamp:$logtail\n"; - } - $logFh->close; - } - return \%hash; # Return the tied hash. - } else { - return undef; # Tie failed. - } -} - -# -# Ties a user's resource file to a hash. -# If necessary, an appropriate history -# log file entry is made as well. -# This sub factors out common code from the subs that manipulate -# the various gdbm files that keep keyword value pairs. -# Parameters: -# domain - Name of the domain the user is in. -# user - Name of the 'current user'. -# namespace - Namespace representing the file to tie. -# how - What the tie is done to (e.g. GDBM_WRCREAT(). -# loghead - Optional first part of log entry if there may be a -# history file. -# what - Optional tail of log entry if there may be a history -# file. -# Returns: -# hash to which the database is tied. It's up to the caller to untie. -# undef if the has could not be tied. -# -sub tie_user_hash { - my ($domain,$user,$namespace,$how,$loghead,$what) = @_; - - $namespace=~s/\//\_/g; # / -> _ - $namespace=~s/\W//g; # whitespace eliminated. - my $proname = propath($domain, $user); - - # Tie the database. - - my %hash; - if(tie(%hash, 'GDBM_File', "$proname/$namespace.db", - $how, 0640)) { - # If this is a namespace for which a history is kept, - # make the history log entry: - if (($namespace !~/^nohist\_/) && (defined($loghead))) { - my $args = scalar @_; - Debug(" Opening history: $namespace $args"); - my $hfh = IO::File->new(">>$proname/$namespace.hist"); - if($hfh) { - my $now = time; - print $hfh "$loghead:$now:$what\n"; - } - $hfh->close; - } - return \%hash; - } else { - return undef; - } - -} - # read_profile # # Returns a set of specific entries from a user's profile file. @@ -1095,7 +957,7 @@ sub read_profile { $qresult.="$hashref->{$queries[$i]}&"; # Presumably failure gives empty string. } $qresult=~s/\&$//; # Remove trailing & from last lookup. - if (untie %$hashref) { + if (&untie_user_hash($hashref)) { return $qresult; } else { return "error: ".($!+0)." untie (GDBM) Failed"; @@ -1130,12 +992,11 @@ sub read_profile { # 0 - Program should exit. # Side effects: # Reply information is sent to the client. - sub ping_handler { my ($cmd, $tail, $client) = @_; Debug("$cmd $tail $client .. $currenthostid:"); - Reply( $client,"$currenthostid\n","$cmd:$tail"); + Reply( $client,\$currenthostid,"$cmd:$tail"); return 1; } @@ -1158,11 +1019,10 @@ sub ping_handler { # 0 - Program should exit. # Side effects: # Reply information is sent to the client. - sub pong_handler { my ($cmd, $tail, $replyfd) = @_; - my $reply=&reply("ping",$clientname); + my $reply=&Apache::lonnet::reply("ping",$clientname); &Reply( $replyfd, "$currenthostid:$reply\n", "$cmd:$tail"); return 1; } @@ -1206,14 +1066,13 @@ sub establish_key_handler { $key=substr($key,0,32); my $cipherkey=pack("H32",$key); $cipher=new IDEA $cipherkey; - &Reply($replyfd, "$buildkey\n", "$cmd:$tail"); + &Reply($replyfd, \$buildkey, "$cmd:$tail"); return 1; } ®ister_handler("ekey", \&establish_key_handler, 0, 1,1); - # Handler for the load command. Returns the current system load average # to the requestor. # @@ -1244,11 +1103,11 @@ sub load_handler { my $loadpercent=100*$loadavg/$perlvar{'lonLoadLim'}; - &Reply( $replyfd, "$loadpercent\n", "$cmd:$tail"); + &Reply( $replyfd, \$loadpercent, "$cmd:$tail"); return 1; } -register_handler("load", \&load_handler, 0, 1, 0); +®ister_handler("load", \&load_handler, 0, 1, 0); # # Process the userload request. This sub returns to the client the current @@ -1273,12 +1132,12 @@ register_handler("load", \&load_handler, sub user_load_handler { my ($cmd, $tail, $replyfd) = @_; - my $userloadpercent=&userload(); - &Reply($replyfd, "$userloadpercent\n", "$cmd:$tail"); + my $userloadpercent=&Apache::lonnet::userload(); + &Reply($replyfd, \$userloadpercent, "$cmd:$tail"); return 1; } -register_handler("userload", \&user_load_handler, 0, 1, 0); +®ister_handler("userload", \&user_load_handler, 0, 1, 0); # Process a request for the authorization type of a user: # (userauth). @@ -1314,8 +1173,10 @@ sub user_authorization_type { my ($type,$otherinfo) = split(/:/,$result); if($type =~ /^krb/) { $type = $result; - } - &Reply( $replyfd, "$type:\n", $userinput); + } else { + $type .= ':'; + } + &Reply( $replyfd, \$type, $userinput); } return 1; @@ -1335,7 +1196,6 @@ sub user_authorization_type { # 0 - Program should exit # Implicit Output: # a reply is written to the client. - sub push_file_handler { my ($cmd, $tail, $client) = @_; @@ -1352,7 +1212,7 @@ sub push_file_handler { # process making the request. my $reply = &PushFile($userinput); - &Reply($client, "$reply\n", $userinput); + &Reply($client, \$reply, $userinput); } else { &Failure( $client, "refused\n", $userinput); @@ -1361,8 +1221,10 @@ sub push_file_handler { } ®ister_handler("pushfile", \&push_file_handler, 1, 0, 1); +# The du_handler routine should be considered obsolete and is retained +# for communication with legacy servers. Please see the du2_handler. # -# du - list the disk usuage of a directory recursively. +# du - list the disk usage of a directory recursively. # # note: stolen code from the ls file handler # under construction by Rick Banghart @@ -1378,10 +1240,9 @@ sub push_file_handler { # Side Effects: # The reply is written to $client. # - sub du_handler { my ($cmd, $ududir, $client) = @_; - my ($ududir) = split(/:/,$ududir); # Make 'telnet' testing easier. + ($ududir) = split(/:/,$ududir); # Make 'telnet' testing easier. my $userinput = "$cmd:$ududir"; if ($ududir=~/\.\./ || $ududir!~m|^/home/httpd/|) { @@ -1395,25 +1256,92 @@ sub du_handler { # etc. # if (-d $ududir) { - # And as Shakespeare would say to make - # assurance double sure, - # use execute_command to ensure that the command is not executed in - # a shell that can screw us up. - - my $duout = execute_command("du -ks $ududir"); - $duout=~s/[^\d]//g; #preserve only the numbers - &Reply($client,"$duout\n","$cmd:$ududir"); + my $total_size=0; + my $code=sub { + if ($_=~/\.\d+\./) { return;} + if ($_=~/\.meta$/) { return;} + if (-d $_) { return;} + $total_size+=(stat($_))[7]; + }; + chdir($ududir); + find($code,$ududir); + $total_size=int($total_size/1024); + &Reply($client,\$total_size,"$cmd:$ududir"); } else { - &Failure($client, "bad_directory:$ududir\n","$cmd:$ududir"); - } return 1; } ®ister_handler("du", \&du_handler, 0, 1, 0); +# Please also see the du_handler, which is obsoleted by du2. +# du2_handler differs from du_handler in that required path to directory +# provided by &propath() is prepended in the handler instead of on the +# client side. +# +# du2 - list the disk usage of a directory recursively. +# +# Parameters: +# $cmd - The command that dispatched us (du). +# $tail - The tail of the request that invoked us. +# $tail is a : separated list of the following: +# - $ududir - directory path to list (before prepending) +# - $getpropath = 1 if &propath() should prepend +# - $uname - username to use for &propath or user dir +# - $udom - domain to use for &propath or user dir +# All are escaped. +# $client - Socket open on the client. +# Returns: +# 1 - indicating that the daemon should not disconnect. +# Side Effects: +# The reply is written to $client. +# + +sub du2_handler { + my ($cmd, $tail, $client) = @_; + my ($ududir,$getpropath,$uname,$udom) = map { &unescape($_) } (split(/:/, $tail)); + my $userinput = "$cmd:$tail"; + if (($ududir=~/\.\./) || (($ududir!~m|^/home/httpd/|) && (!$getpropath))) { + &Failure($client,"refused\n","$cmd:$tail"); + return 1; + } + if ($getpropath) { + if (($uname =~ /^$LONCAPA::match_name$/) && ($udom =~ /^$LONCAPA::match_domain$/)) { + $ududir = &propath($udom,$uname).'/'.$ududir; + } else { + &Failure($client,"refused\n","$cmd:$tail"); + return 1; + } + } + # Since $ududir could have some nasties in it, + # we will require that ududir is a valid + # directory. Just in case someone tries to + # slip us a line like .;(cd /home/httpd rm -rf*) + # etc. + # + if (-d $ududir) { + my $total_size=0; + my $code=sub { + if ($_=~/\.\d+\./) { return;} + if ($_=~/\.meta$/) { return;} + if (-d $_) { return;} + $total_size+=(stat($_))[7]; + }; + chdir($ududir); + find($code,$ududir); + $total_size=int($total_size/1024); + &Reply($client,\$total_size,"$cmd:$ududir"); + } else { + &Failure($client, "bad_directory:$ududir\n","$cmd:$tail"); + } + return 1; +} +®ister_handler("du2", \&du2_handler, 0, 1, 0); # +# The ls_handler routine should be considered obsolete and is retained +# for communication with legacy servers. Please see the ls3_handler. +# # ls - list the contents of a directory. For each file in the # selected directory the filename followed by the full output of # the stat function is returned. The returned info for each @@ -1430,6 +1358,7 @@ sub du_handler { # The reply is written to $client. # sub ls_handler { + # obsoleted by ls2_handler my ($cmd, $ulsdir, $client) = @_; my $userinput = "$cmd:$ulsdir"; @@ -1442,14 +1371,15 @@ sub ls_handler { if(-d $ulsdir) { if (opendir(LSDIR,$ulsdir)) { while ($ulsfn=readdir(LSDIR)) { - undef $obs, $rights; + undef($obs); + undef($rights); my @ulsstats=stat($ulsdir.'/'.$ulsfn); #We do some obsolete checking here if(-e $ulsdir.'/'.$ulsfn.".meta") { open(FILE, $ulsdir.'/'.$ulsfn.".meta"); my @obsolete=; foreach my $obsolete (@obsolete) { - if($obsolete =~ m|()(on)|) { $obs = 1; } + if($obsolete =~ m/()(on|1)/) { $obs = 1; } if($obsolete =~ m|()(default)|) { $rights = 1; } } } @@ -1469,15 +1399,193 @@ sub ls_handler { $ulsout='no_such_dir'; } if ($ulsout eq '') { $ulsout='empty'; } - &Reply($client, "$ulsout\n", $userinput); # This supports debug logging. + &Reply($client, \$ulsout, $userinput); # This supports debug logging. return 1; } ®ister_handler("ls", \&ls_handler, 0, 1, 0); +# The ls2_handler routine should be considered obsolete and is retained +# for communication with legacy servers. Please see the ls3_handler. +# Please also see the ls_handler, which was itself obsoleted by ls2. +# ls2_handler differs from ls_handler in that it escapes its return +# values before concatenating them together with ':'s. +# +# ls2 - list the contents of a directory. For each file in the +# selected directory the filename followed by the full output of +# the stat function is returned. The returned info for each +# file are separated by ':'. The stat fields are separated by &'s. +# Parameters: +# $cmd - The command that dispatched us (ls). +# $ulsdir - The directory path to list... I'm not sure what this +# is relative as things like ls:. return e.g. +# no_such_dir. +# $client - Socket open on the client. +# Returns: +# 1 - indicating that the daemon should not disconnect. +# Side Effects: +# The reply is written to $client. +# +sub ls2_handler { + my ($cmd, $ulsdir, $client) = @_; + + my $userinput = "$cmd:$ulsdir"; + my $obs; + my $rights; + my $ulsout=''; + my $ulsfn; + if (-e $ulsdir) { + if(-d $ulsdir) { + if (opendir(LSDIR,$ulsdir)) { + while ($ulsfn=readdir(LSDIR)) { + undef($obs); + undef($rights); + my @ulsstats=stat($ulsdir.'/'.$ulsfn); + #We do some obsolete checking here + if(-e $ulsdir.'/'.$ulsfn.".meta") { + open(FILE, $ulsdir.'/'.$ulsfn.".meta"); + my @obsolete=; + foreach my $obsolete (@obsolete) { + if($obsolete =~ m/()(on|1)/) { $obs = 1; } + if($obsolete =~ m|()(default)|) { + $rights = 1; + } + } + } + my $tmp = $ulsfn.'&'.join('&',@ulsstats); + if ($obs eq '1') { $tmp.="&1"; } else { $tmp.="&0"; } + if ($rights eq '1') { $tmp.="&1"; } else { $tmp.="&0"; } + $ulsout.= &escape($tmp).':'; + } + closedir(LSDIR); + } + } else { + my @ulsstats=stat($ulsdir); + $ulsout.=$ulsfn.'&'.join('&',@ulsstats).':'; + } + } else { + $ulsout='no_such_dir'; + } + if ($ulsout eq '') { $ulsout='empty'; } + &Reply($client, \$ulsout, $userinput); # This supports debug logging. + return 1; +} +®ister_handler("ls2", \&ls2_handler, 0, 1, 0); +# +# ls3 - list the contents of a directory. For each file in the +# selected directory the filename followed by the full output of +# the stat function is returned. The returned info for each +# file are separated by ':'. The stat fields are separated by &'s. +# Parameters: +# $cmd - The command that dispatched us (ls). +# $tail - The tail of the request that invoked us. +# $tail is a : separated list of the following: +# - $ulsdir - directory path to list (before prepending) +# - $getpropath = 1 if &propath() should prepend +# - $getuserdir = 1 if path to user dir in lonUsers should +# prepend +# - $alternate_root - path to prepend +# - $uname - username to use for &propath or user dir +# - $udom - domain to use for &propath or user dir +# All of these except $getpropath and &getuserdir are escaped. +# no_such_dir. +# $client - Socket open on the client. +# Returns: +# 1 - indicating that the daemon should not disconnect. +# Side Effects: +# The reply is written to $client. +# +sub ls3_handler { + my ($cmd, $tail, $client) = @_; + my $userinput = "$cmd:$tail"; + my ($ulsdir,$getpropath,$getuserdir,$alternate_root,$uname,$udom) = + split(/:/,$tail); + if (defined($ulsdir)) { + $ulsdir = &unescape($ulsdir); + } + if (defined($alternate_root)) { + $alternate_root = &unescape($alternate_root); + } + if (defined($uname)) { + $uname = &unescape($uname); + } + if (defined($udom)) { + $udom = &unescape($udom); + } + + my $dir_root = $perlvar{'lonDocRoot'}; + if ($getpropath) { + if (($uname =~ /^$LONCAPA::match_name$/) && ($udom =~ /^$LONCAPA::match_domain$/)) { + $dir_root = &propath($udom,$uname); + $dir_root =~ s/\/$//; + } else { + &Failure($client,"refused\n","$cmd:$tail"); + return 1; + } + } elsif ($getuserdir) { + if (($uname =~ /^$LONCAPA::match_name$/) && ($udom =~ /^$LONCAPA::match_domain$/)) { + my $subdir=$uname.'__'; + $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/; + $dir_root = $Apache::lonnet::perlvar{'lonUsersDir'} + ."/$udom/$subdir/$uname"; + } else { + &Failure($client,"refused\n","$cmd:$tail"); + return 1; + } + } elsif ($alternate_root ne '') { + $dir_root = $alternate_root; + } + if ($dir_root ne '') { + if ($ulsdir =~ /^\//) { + $ulsdir = $dir_root.$ulsdir; + } else { + $ulsdir = $dir_root.'/'.$ulsdir; + } + } + my $obs; + my $rights; + my $ulsout=''; + my $ulsfn; + if (-e $ulsdir) { + if(-d $ulsdir) { + if (opendir(LSDIR,$ulsdir)) { + while ($ulsfn=readdir(LSDIR)) { + undef($obs); + undef($rights); + my @ulsstats=stat($ulsdir.'/'.$ulsfn); + #We do some obsolete checking here + if(-e $ulsdir.'/'.$ulsfn.".meta") { + open(FILE, $ulsdir.'/'.$ulsfn.".meta"); + my @obsolete=; + foreach my $obsolete (@obsolete) { + if($obsolete =~ m/()(on|1)/) { $obs = 1; } + if($obsolete =~ m|()(default)|) { + $rights = 1; + } + } + } + my $tmp = $ulsfn.'&'.join('&',@ulsstats); + if ($obs eq '1') { $tmp.="&1"; } else { $tmp.="&0"; } + if ($rights eq '1') { $tmp.="&1"; } else { $tmp.="&0"; } + $ulsout.= &escape($tmp).':'; + } + closedir(LSDIR); + } + } else { + my @ulsstats=stat($ulsdir); + $ulsout.=$ulsfn.'&'.join('&',@ulsstats).':'; + } + } else { + $ulsout='no_such_dir'; + } + if ($ulsout eq '') { $ulsout='empty'; } + &Reply($client, \$ulsout, $userinput); # This supports debug logging. + return 1; +} +®ister_handler("ls3", \&ls3_handler, 0, 1, 0); # Process a reinit request. Reinit requests that either # lonc or lond be reinitialized so that an updated @@ -1502,13 +1610,12 @@ sub reinit_process_handler { if(&ValidManager($cert)) { chomp($userinput); my $reply = &ReinitProcess($userinput); - &Reply( $client, "$reply\n", $userinput); + &Reply( $client, \$reply, $userinput); } else { &Failure( $client, "refused\n", $userinput); } return 1; } - ®ister_handler("reinit", \&reinit_process_handler, 1, 0, 1); # Process the editing script for a table edit operation. @@ -1550,8 +1657,7 @@ sub edit_table_handler { } return 1; } -register_handler("edit", \&edit_table_handler, 1, 0, 1); - +®ister_handler("edit", \&edit_table_handler, 1, 0, 1); # # Authenticate a user against the LonCAPA authentication @@ -1588,13 +1694,15 @@ sub authenticate_handler { # udom - User's domain. # uname - Username. # upass - User's password. + # checkdefauth - Pass to validate_user() to try authentication + # with default auth type(s) if no user account. - my ($udom,$uname,$upass)=split(/:/,$tail); - &Debug(" Authenticate domain = $udom, user = $uname, password = $upass"); + my ($udom, $uname, $upass, $checkdefauth)=split(/:/,$tail); + &Debug(" Authenticate domain = $udom, user = $uname, password = $upass, checkdefauth = $checkdefauth"); chomp($upass); $upass=&unescape($upass); - my $pwdcorrect = &validate_user($udom, $uname, $upass); + my $pwdcorrect = &validate_user($udom,$uname,$upass,$checkdefauth); if($pwdcorrect) { &Reply( $client, "authorized\n", $userinput); # @@ -1606,8 +1714,7 @@ sub authenticate_handler { return 1; } - -register_handler("auth", \&authenticate_handler, 1, 1, 0); +®ister_handler("auth", \&authenticate_handler, 1, 1, 0); # # Change a user's password. Note that this function is complicated by @@ -1640,17 +1747,24 @@ sub change_password_handler { # uname - Username. # upass - Current password. # npass - New password. + # context - Context in which this was called + # (preferences or reset_by_email). - my ($udom,$uname,$upass,$npass)=split(/:/,$tail); + my ($udom,$uname,$upass,$npass,$context)=split(/:/,$tail); $upass=&unescape($upass); $npass=&unescape($npass); &Debug("Trying to change password for $uname"); # First require that the user can be authenticated with their - # old password: - - my $validated = &validate_user($udom, $uname, $upass); + # old password unless context was 'reset_by_email': + + my $validated; + if ($context eq 'reset_by_email') { + $validated = 1; + } else { + $validated = &validate_user($udom, $uname, $upass); + } if($validated) { my $realpasswd = &get_auth_type($udom, $uname); # Defined since authd. @@ -1669,21 +1783,11 @@ sub change_password_handler { ."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'); + } elsif ($howpwd eq 'unix' && $context ne 'reset_by_email') { + my $result = &change_unix_password($uname, $npass); &logthis("Result of password change for $uname: ". - &lcpasswdstrerror($?)); - &Reply($client, "$result\n", $userinput); + $result); + &Reply($client, \$result, $userinput); } else { # this just means that the current password mode is not # one we know how to change (e.g the kerberos auth modes or @@ -1698,8 +1802,7 @@ sub change_password_handler { return 1; } -register_handler("passwd", \&change_password_handler, 1, 1, 0); - +®ister_handler("passwd", \&change_password_handler, 1, 1, 0); # # Create a new user. User in this case means a lon-capa user. @@ -1738,24 +1841,16 @@ sub add_user_handler { 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"; - } - } + if (!&mkpath($passfilename)) { + $fperror="error: ".($!+0)." mkdir failed while attempting " + ."makeuser"; } unless ($fperror) { my $result=&make_passwd_file($uname, $umode,$npass, $passfilename); - &Reply($client, $result, $userinput); #BUGBUG - could be fail + &Reply($client,\$result, $userinput); #BUGBUG - could be fail } else { - &Failure($client, "$fperror\n", $userinput); + &Failure($client, \$fperror, $userinput); } } umask($oldumask); @@ -1790,6 +1885,9 @@ sub add_user_handler { # Implicit inputs: # The authentication systems describe above have their own forms of implicit # input into the authentication process that are described above. +# NOTE: +# This is also used to change the authentication credential values (e.g. passwd). +# # sub change_authentication_handler { @@ -1809,23 +1907,41 @@ sub change_authentication_handler { my $oldauth = &get_auth_type($udom, $uname); # Get old auth info. my $passfilename = &password_path($udom, $uname); if ($passfilename) { # Not allowed to create a new user!! - my $result=&make_passwd_file($uname, $umode,$npass,$passfilename); - # - # If the current auth mode is internal, and the old auth mode was - # unix, or krb*, and the user is an author for this domain, - # re-run manage_permissions for that role in order to be able - # to take ownership of the construction space back to www:www - # - - if( ($oldauth =~ /^unix/) && ($umode eq "internal")) { # unix -> internal - if(&is_author($udom, $uname)) { - &Debug(" Need to manage author permissions..."); - &manage_permissions("/$udom/_au", $udom, $uname, "internal:"); + # If just changing the unix passwd. need to arrange to run + # passwd since otherwise make_passwd_file will run + # lcuseradd which fails if an account already exists + # (to prevent an unscrupulous LONCAPA admin from stealing + # an existing account by overwriting it as a LonCAPA account). + + if(($oldauth =~/^unix/) && ($umode eq "unix")) { + my $result = &change_unix_password($uname, $npass); + &logthis("Result of password change for $uname: ".$result); + if ($result eq "ok") { + &Reply($client, \$result); + } else { + &Failure($client, \$result); } + } else { + my $result=&make_passwd_file($uname, $umode,$npass,$passfilename); + # + # If the current auth mode is internal, and the old auth mode was + # unix, or krb*, and the user is an author for this domain, + # re-run manage_permissions for that role in order to be able + # to take ownership of the construction space back to www:www + # + + + if( (($oldauth =~ /^unix/) && ($umode eq "internal")) || + (($oldauth =~ /^internal/) && ($umode eq "unix")) ) { + if(&is_author($udom, $uname)) { + &Debug(" Need to manage author permissions..."); + &manage_permissions("/$udom/_au", $udom, $uname, "$umode:"); + } + } + &Reply($client, \$result, $userinput); } - &Reply($client, $result, $userinput); } else { &Failure($client, "non_authorized\n", $userinput); # Fail the user now. } @@ -1906,11 +2022,13 @@ sub update_resource_handler { my $now=time; my $since=$now-$atime; if ($since>$perlvar{'lonExpire'}) { - my $reply=&reply("unsub:$fname","$clientname"); + my $reply=&Apache::lonnet::reply("unsub:$fname","$clientname"); + &devalidate_meta_cache($fname); unlink("$fname"); + unlink("$fname.meta"); } else { my $transname="$fname.in.transfer"; - my $remoteurl=&reply("sub:$fname","$clientname"); + my $remoteurl=&Apache::lonnet::reply("sub:$fname","$clientname"); my $response; alarm(120); { @@ -1937,6 +2055,7 @@ sub update_resource_handler { alarm(0); } rename($transname,$fname); + &devalidate_meta_cache($fname); } } &Reply( $client, "ok\n", $userinput); @@ -1950,6 +2069,16 @@ sub update_resource_handler { } ®ister_handler("update", \&update_resource_handler, 0 ,1, 0); +sub devalidate_meta_cache { + my ($url) = @_; + use Cache::Memcached; + my $memcache = new Cache::Memcached({'servers'=>['127.0.0.1:11211']}); + $url = &Apache::lonnet::declutter($url); + $url =~ s-\.meta$--; + my $id = &escape('meta:'.$url); + $memcache->delete($id); +} + # # Fetch a user file from a remote server to the user's home directory # userfiles subdir. @@ -1980,21 +2109,10 @@ sub fetch_user_file_handler { # Note that any regular files in the way of this path are # wiped out to deal with some earlier folly of mine. - my $path = $udir; - if ($ufile =~m|(.+)/([^/]+)$|) { - my @parts=split('/',$1); - foreach my $part (@parts) { - $path .= '/'.$part; - if( -f $path) { - unlink($path); - } - if ((-e $path)!=1) { - mkdir($path,0770); - } - } + if (!&mkpath($udir.'/'.$ufile)) { + &Failure($client, "unable_to_create\n", $userinput); } - my $destname=$udir.'/'.$ufile; my $transname=$udir.'/'.$ufile.'.in.transit'; my $remoteurl='http://'.$clientip.'/userfiles/'.$fname; @@ -2038,7 +2156,6 @@ sub fetch_user_file_handler { # # Returns: # 1 - Continue processing. - sub remove_user_file_handler { my ($cmd, $tail, $client) = @_; @@ -2091,7 +2208,6 @@ sub remove_user_file_handler { # # Returns: # 1 - Continue processing. - sub mkdir_user_file_handler { my ($cmd, $tail, $client) = @_; @@ -2105,24 +2221,11 @@ sub mkdir_user_file_handler { } else { my $udir = &propath($udom,$uname); if (-e $udir) { - my $newdir=$udir.'/userfiles/'.$ufile; - if (!-e $newdir) { - my @parts=split('/',$newdir); - my $path; - foreach my $part (@parts) { - $path .= '/'.$part; - if (!-e $path) { - mkdir($path,0770); - } - } - if (!-e $newdir) { - &Failure($client, "failed\n", "$cmd:$tail"); - } else { - &Reply($client, "ok\n", "$cmd:$tail"); - } - } else { - &Failure($client, "not_found\n", "$cmd:$tail"); + my $newdir=$udir.'/userfiles/'.$ufile.'/'; + if (!&mkpath($newdir)) { + &Failure($client, "failed\n", "$cmd:$tail"); } + &Reply($client, "ok\n", "$cmd:$tail"); } else { &Failure($client, "not_home\n", "$cmd:$tail"); } @@ -2140,7 +2243,6 @@ sub mkdir_user_file_handler { # # Returns: # 1 - Continue processing. - sub rename_user_file_handler { my ($cmd, $tail, $client) = @_; @@ -2174,10 +2276,9 @@ sub rename_user_file_handler { } ®ister_handler("renameuserfile", \&rename_user_file_handler, 0,1,0); - # -# Authenticate access to a user file by checking the user's -# session token(?) +# Checks if the specified user has an active session on the server +# return ok if so, not_found if not # # Parameters: # cmd - The request keyword that dispatched to tus. @@ -2185,31 +2286,69 @@ sub rename_user_file_handler { # client - Filehandle open on the client. # Return: # 1. +sub user_has_session_handler { + my ($cmd, $tail, $client) = @_; + + my ($udom, $uname) = map { &unescape($_) } (split(/:/, $tail)); + + &logthis("Looking for $udom $uname"); + opendir(DIR,$perlvar{'lonIDsDir'}); + my $filename; + while ($filename=readdir(DIR)) { + last if ($filename=~/^\Q$uname\E_\d+_\Q$udom\E_/); + } + if ($filename) { + &Reply($client, "ok\n", "$cmd:$tail"); + } else { + &Failure($client, "not_found\n", "$cmd:$tail"); + } + return 1; + +} +®ister_handler("userhassession", \&user_has_session_handler, 0,1,0); +# +# Authenticate access to a user file by checking that the token the user's +# passed also exists in their session file +# +# Parameters: +# cmd - The request keyword that dispatched to tus. +# tail - The tail of the request (colon separated parameters). +# client - Filehandle open on the client. +# Return: +# 1. sub token_auth_user_file_handler { my ($cmd, $tail, $client) = @_; my ($fname, $session) = split(/:/, $tail); chomp($session); - my $reply="non_auth\n"; - if (open(ENVIN,$perlvar{'lonIDsDir'}.'/'. - $session.'.id')) { - while (my $line=) { - if ($line=~ m|userfile\.\Q$fname\E\=|) { $reply="ok\n"; } + my $reply="non_auth"; + my $file = $perlvar{'lonIDsDir'}.'/'.$session.'.id'; + if (open(ENVIN,"$file")) { + flock(ENVIN,LOCK_SH); + tie(my %disk_env,'GDBM_File',"$file",&GDBM_READER(),0640); + if (exists($disk_env{"userfile.$fname"})) { + $reply="ok"; + } else { + foreach my $envname (keys(%disk_env)) { + if ($envname=~ m|^userfile\.\Q$fname\E|) { + $reply="ok"; + last; + } + } } + untie(%disk_env); close(ENVIN); - &Reply($client, $reply, "$cmd:$tail"); + &Reply($client, \$reply, "$cmd:$tail"); } else { &Failure($client, "invalid_token\n", "$cmd:$tail"); } return 1; } - ®ister_handler("tokenauthuserfile", \&token_auth_user_file_handler, 0,1,0); - # # Unsubscribe from a resource. # @@ -2238,6 +2377,7 @@ sub unsubscribe_handler { return 1; } ®ister_handler("unsub", \&unsubscribe_handler, 0, 1, 0); + # Subscribe to a resource # # Parameters: @@ -2260,13 +2400,13 @@ sub subscribe_handler { ®ister_handler("sub", \&subscribe_handler, 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. +# Determine the latest version of a resource (it looks for the highest +# past version and then returns that +1) # # Parameters: # $cmd - The command that got us here. # $tail - Tail of the command (remaining parameters). +# (Should consist of an absolute path to a file) # $client - File descriptor connected to client. # Returns # 0 - Requested to exit, caller should shut down. @@ -2316,7 +2456,7 @@ sub activity_log_handler { return 1; } -register_handler("log", \&activity_log_handler, 0, 1, 0); +®ister_handler("log", \&activity_log_handler, 0, 1, 0); # # Put a namespace entry in a user profile hash. @@ -2348,7 +2488,7 @@ sub put_user_profile_entry { my ($key,$value)=split(/=/,$pair); $hashref->{$key}=$value; } - if (untie(%$hashref)) { + if (&untie_user_hash($hashref)) { &Reply( $client, "ok\n", $userinput); } else { &Failure($client, "error: ".($!+0)." untie(GDBM) failed ". @@ -2356,7 +2496,7 @@ sub put_user_profile_entry { $userinput); } } else { - &Failure( $client, "error: ".($!)." tie(GDBM) Failed ". + &Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ". "while attempting put\n", $userinput); } } else { @@ -2367,6 +2507,61 @@ sub put_user_profile_entry { } ®ister_handler("put", \&put_user_profile_entry, 0, 1, 0); +# Put a piece of new data in hash, returns error if entry already exists +# Parameters: +# $cmd - The command that got us here. +# $tail - Tail of the command (remaining parameters). +# $client - File descriptor connected to client. +# Returns +# 0 - Requested to exit, caller should shut down. +# 1 - Continue processing. +# +sub newput_user_profile_entry { + my ($cmd, $tail, $client) = @_; + + my $userinput = "$cmd:$tail"; + + my ($udom,$uname,$namespace,$what) =split(/:/,$tail,4); + if ($namespace eq 'roles') { + &Failure( $client, "refused\n", $userinput); + return 1; + } + + chomp($what); + + my $hashref = &tie_user_hash($udom, $uname, $namespace, + &GDBM_WRCREAT(),"N",$what); + if(!$hashref) { + &Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ". + "while attempting put\n", $userinput); + return 1; + } + + my @pairs=split(/\&/,$what); + foreach my $pair (@pairs) { + my ($key,$value)=split(/=/,$pair); + if (exists($hashref->{$key})) { + &Failure($client, "key_exists: ".$key."\n",$userinput); + return 1; + } + } + + foreach my $pair (@pairs) { + my ($key,$value)=split(/=/,$pair); + $hashref->{$key}=$value; + } + + if (&untie_user_hash($hashref)) { + &Reply( $client, "ok\n", $userinput); + } else { + &Failure($client, "error: ".($!+0)." untie(GDBM) failed ". + "while attempting put\n", + $userinput); + } + return 1; +} +®ister_handler("newput", \&newput_user_profile_entry, 0, 1, 0); + # # Increment a profile entry in the user history file. # The history contains keyword value pairs. In this case, @@ -2397,13 +2592,19 @@ sub increment_user_value_handler { my @pairs=split(/\&/,$what); foreach my $pair (@pairs) { my ($key,$value)=split(/=/,$pair); + $value = &unescape($value); # We could check that we have a number... if (! defined($value) || $value eq '') { $value = 1; } $hashref->{$key}+=$value; + if ($namespace eq 'nohist_resourcetracker') { + if ($hashref->{$key} < 0) { + $hashref->{$key} = 0; + } + } } - if (untie(%$hashref)) { + if (&untie_user_hash($hashref)) { &Reply( $client, "ok\n", $userinput); } else { &Failure($client, "error: ".($!+0)." untie(GDBM) failed ". @@ -2421,7 +2622,6 @@ sub increment_user_value_handler { } ®ister_handler("inc", \&increment_user_value_handler, 0, 1, 0); - # # Put a new role for a user. Roles are LonCAPA's packaging of permissions. # Each 'role' a user has implies a set of permissions. Adding a new role @@ -2471,7 +2671,7 @@ sub roles_put_handler { $auth_type); $hashref->{$key}=$value; } - if (untie($hashref)) { + if (&untie_user_hash($hashref)) { &Reply($client, "ok\n", $userinput); } else { &Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ". @@ -2522,7 +2722,7 @@ sub roles_delete_handler { foreach my $key (@rolekeys) { delete $hashref->{$key}; } - if (untie(%$hashref)) { + if (&untie_user_hash($hashref)) { &Reply($client, "ok\n", $userinput); } else { &Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ". @@ -2564,10 +2764,11 @@ sub get_profile_entry { my ($udom,$uname,$namespace,$what) = split(/:/,$tail); chomp($what); + my $replystring = read_profile($udom, $uname, $namespace, $what); my ($first) = split(/:/,$replystring); if($first ne "error") { - &Reply($client, "$replystring\n", $userinput); + &Reply($client, \$replystring, $userinput); } else { &Failure($client, $replystring." while attempting get\n", $userinput); } @@ -2601,7 +2802,7 @@ sub get_profile_entry_encrypted { my $userinput = "$cmd:$tail"; - my ($cmd,$udom,$uname,$namespace,$what) = split(/:/,$userinput); + my ($udom,$uname,$namespace,$what) = split(/:/,$tail); chomp($what); my $qresult = read_profile($udom, $uname, $namespace, $what); my ($first) = split(/:/, $qresult); @@ -2629,6 +2830,7 @@ sub get_profile_entry_encrypted { return 1; } ®ister_handler("eget", \&get_profile_entry_encrypted, 0, 1, 0); + # # Deletes a key in a user profile database. # @@ -2647,7 +2849,6 @@ sub get_profile_entry_encrypted { # 0 - Exit server. # # - sub delete_profile_entry { my ($cmd, $tail, $client) = @_; @@ -2663,7 +2864,7 @@ sub delete_profile_entry { foreach my $key (@keys) { delete($hashref->{$key}); } - if (untie(%$hashref)) { + if (&untie_user_hash($hashref)) { &Reply($client, "ok\n", $userinput); } else { &Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". @@ -2676,6 +2877,7 @@ sub delete_profile_entry { return 1; } ®ister_handler("del", \&delete_profile_entry, 0, 1, 0); + # # List the set of keys that are defined in a profile database file. # A successful reply from this will contain an & separated list of @@ -2704,9 +2906,9 @@ sub get_profile_keys { foreach my $key (keys %$hashref) { $qresult.="$key&"; } - if (untie(%$hashref)) { + if (&untie_user_hash($hashref)) { $qresult=~s/\&$//; - &Reply($client, "$qresult\n", $userinput); + &Reply($client, \$qresult, $userinput); } else { &Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". "while attempting keys\n", $userinput); @@ -2765,7 +2967,7 @@ sub dump_profile_database { $data{$symb}->{$param}=$value; $data{$symb}->{'v.'.$param}=$v; } - if (untie(%$hashref)) { + if (&untie_user_hash($hashref)) { while (my ($symb,$param_hash) = each(%data)) { while(my ($param,$value) = each (%$param_hash)){ next if ($param =~ /^v\./); # Ignore versions... @@ -2776,7 +2978,7 @@ sub dump_profile_database { } } chop($qresult); - &Reply($client , "$qresult\n", $userinput); + &Reply($client , \$qresult, $userinput); } else { &Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ". "while attempting currentdump\n", $userinput); @@ -2820,29 +3022,46 @@ sub dump_with_regexp { my $userinput = "$cmd:$tail"; - my ($udom,$uname,$namespace,$regexp)=split(/:/,$tail); + my ($udom,$uname,$namespace,$regexp,$range)=split(/:/,$tail); if (defined($regexp)) { $regexp=&unescape($regexp); } else { $regexp='.'; } + my ($start,$end); + if (defined($range)) { + if ($range =~/^(\d+)\-(\d+)$/) { + ($start,$end) = ($1,$2); + } elsif ($range =~/^(\d+)$/) { + ($start,$end) = (0,$1); + } else { + undef($range); + } + } my $hashref = &tie_user_hash($udom, $uname, $namespace, &GDBM_READER()); if ($hashref) { my $qresult=''; + my $count=0; while (my ($key,$value) = each(%$hashref)) { if ($regexp eq '.') { + $count++; + if (defined($range) && $count >= $end) { last; } + if (defined($range) && $count < $start) { next; } $qresult.=$key.'='.$value.'&'; } else { my $unescapeKey = &unescape($key); if (eval('$unescapeKey=~/$regexp/')) { + $count++; + if (defined($range) && $count >= $end) { last; } + if (defined($range) && $count < $start) { next; } $qresult.="$key=$value&"; } } } - if (untie(%$hashref)) { + if (&untie_user_hash($hashref)) { chop($qresult); - &Reply($client, "$qresult\n", $userinput); + &Reply($client, \$qresult, $userinput); } else { &Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ". "while attempting dump\n", $userinput); @@ -2854,7 +3073,6 @@ sub dump_with_regexp { return 1; } - ®ister_handler("dump", \&dump_with_regexp, 0, 1, 0); # Store a set of key=value pairs associated with a versioned name. @@ -2886,7 +3104,7 @@ sub store_handler { chomp($what); my @pairs=split(/\&/,$what); my $hashref = &tie_user_hash($udom, $uname, $namespace, - &GDBM_WRCREAT(), "P", + &GDBM_WRCREAT(), "S", "$rid:$what"); if ($hashref) { my $now = time; @@ -2903,7 +3121,7 @@ sub store_handler { $hashref->{"$version:$rid:timestamp"}=$now; $allkeys.='timestamp'; $hashref->{"$version:keys:$rid"}=$allkeys; - if (untie($hashref)) { + if (&untie_user_hash($hashref)) { &Reply($client, "ok\n", $userinput); } else { &Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". @@ -2920,6 +3138,86 @@ sub store_handler { return 1; } ®ister_handler("store", \&store_handler, 0, 1, 0); + +# Modify a set of key=value pairs associated with a versioned name. +# +# Parameters: +# $cmd - Request command keyword. +# $tail - Tail of the request. This is a colon +# separated list containing: +# domain/user - User and authentication domain. +# namespace - Name of the database being modified +# rid - Resource keyword to modify. +# v - Version item to modify +# what - new value associated with rid. +# +# $client - Socket open on the client. +# +# +# Returns: +# 1 (keep on processing). +# Side-Effects: +# Writes to the client +sub putstore_handler { + my ($cmd, $tail, $client) = @_; + + my $userinput = "$cmd:$tail"; + + my ($udom,$uname,$namespace,$rid,$v,$what) =split(/:/,$tail); + if ($namespace ne 'roles') { + + chomp($what); + my $hashref = &tie_user_hash($udom, $uname, $namespace, + &GDBM_WRCREAT(), "M", + "$rid:$v:$what"); + if ($hashref) { + my $now = time; + my %data = &hash_extract($what); + my @allkeys; + while (my($key,$value) = each(%data)) { + push(@allkeys,$key); + $hashref->{"$v:$rid:$key"} = $value; + } + my $allkeys = join(':',@allkeys); + $hashref->{"$v:keys:$rid"}=$allkeys; + + if (&untie_user_hash($hashref)) { + &Reply($client, "ok\n", $userinput); + } else { + &Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". + "while attempting store\n", $userinput); + } + } else { + &Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ". + "while attempting store\n", $userinput); + } + } else { + &Failure($client, "refused\n", $userinput); + } + + return 1; +} +®ister_handler("putstore", \&putstore_handler, 0, 1, 0); + +sub hash_extract { + my ($str)=@_; + my %hash; + foreach my $pair (split(/\&/,$str)) { + my ($key,$value)=split(/=/,$pair); + $hash{$key}=$value; + } + return (%hash); +} +sub hash_to_str { + my ($hash_ref)=@_; + my $str; + foreach my $key (keys(%$hash_ref)) { + $str.=$key.'='.$hash_ref->{$key}.'&'; + } + $str=~s/\&$//; + return $str; +} + # # Dump out all versions of a resource that has key=value pairs associated # with it for each version. These resources are built up via the store @@ -2949,31 +3247,29 @@ sub restore_handler { my ($cmd, $tail, $client) = @_; my $userinput = "$cmd:$tail"; # Only used for logging purposes. - - my ($cmd,$udom,$uname,$namespace,$rid) = split(/:/,$userinput); + my ($udom,$uname,$namespace,$rid) = split(/:/,$tail); $namespace=~s/\//\_/g; - $namespace=~s/\W//g; + $namespace = &LONCAPA::clean_username($namespace); + 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"}; + my $hashref = &tie_user_hash($udom, $uname, $namespace, &GDBM_READER()); + if ($hashref) { + my $version=$hashref->{"version:$rid"}; $qresult.="version=$version&"; my $scope; for ($scope=1;$scope<=$version;$scope++) { - my $vkeys=$hash{"$scope:keys:$rid"}; + my $vkeys=$hashref->{"$scope:keys:$rid"}; my @keys=split(/:/,$vkeys); my $key; $qresult.="$scope:keys=$vkeys&"; foreach $key (@keys) { - $qresult.="$scope:$key=".$hash{"$scope:$rid:$key"}."&"; + $qresult.="$scope:$key=".$hashref->{"$scope:$rid:$key"}."&"; } } - if (untie(%hash)) { + if (&untie_user_hash($hashref)) { $qresult=~s/\&$//; - &Reply( $client, "$qresult\n", $userinput); + &Reply( $client, \$qresult, $userinput); } else { &Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". "while attempting restore\n", $userinput); @@ -2990,15 +3286,17 @@ sub restore_handler { ®ister_handler("restore", \&restore_handler, 0,1,0); # -# Add a chat message to to a discussion board. +# Add a chat message to a synchronous discussion board. # # Parameters: # $cmd - Request keyword. # $tail - Tail of the command. A colon separated list # containing: # cdom - Domain on which the chat board lives -# cnum - Identifier of the discussion group. -# post - Body of the posting. +# cnum - Course containing the chat board. +# newpost - Body of the posting. +# group - Optional group, if chat board is only +# accessible in a group within the course # $client - Socket open on the client. # Returns: # 1 - Indicating caller should keep on processing. @@ -3013,15 +3311,16 @@ sub send_chat_handler { my $userinput = "$cmd:$tail"; - my ($cdom,$cnum,$newpost)=split(/\:/,$tail); - &chat_add($cdom,$cnum,$newpost); + my ($cdom,$cnum,$newpost,$group)=split(/\:/,$tail); + &chat_add($cdom,$cnum,$newpost,$group); &Reply($client, "ok\n", $userinput); return 1; } ®ister_handler("chatsend", \&send_chat_handler, 0, 1, 0); + # -# Retrieve the set of chat messagss from a discussion board. +# Retrieve the set of chat messages from a discussion board. # # Parameters: # $cmd - Command keyword that initiated the request. @@ -3031,6 +3330,8 @@ sub send_chat_handler { # chat id - Discussion thread(?) # domain/user - Authentication domain and username # of the requesting person. +# group - Optional course group containing +# the board. # $client - Socket open on the client program. # Returns: # 1 - continue processing @@ -3043,13 +3344,13 @@ sub retrieve_chat_handler { my $userinput = "$cmd:$tail"; - my ($cdom,$cnum,$udom,$uname)=split(/\:/,$tail); + my ($cdom,$cnum,$udom,$uname,$group)=split(/\:/,$tail); my $reply=''; - foreach (&get_chat($cdom,$cnum,$udom,$uname)) { + foreach (&get_chat($cdom,$cnum,$udom,$uname,$group)) { $reply.=&escape($_).':'; } $reply=~s/\:$//; - &Reply($client, $reply."\n", $userinput); + &Reply($client, \$reply, $userinput); return 1; @@ -3122,7 +3423,7 @@ sub reply_query_handler { my $userinput = "$cmd:$tail"; - my ($cmd,$id,$reply)=split(/:/,$userinput); + my ($id,$reply)=split(/:/,$tail); my $store; my $execdir=$perlvar{'lonDaemons'}; if ($store=IO::File->new(">$execdir/tmp/$id")) { @@ -3155,6 +3456,14 @@ sub reply_query_handler { # $tail - Tail of the command. In this case consists of a colon # separated list contaning the domain to apply this to and # an ampersand separated list of keyword=value pairs. +# Each value is a colon separated list that includes: +# description, institutional code and course owner. +# For backward compatibility with versions included +# in LON-CAPA 1.1.X (and earlier) and 1.2.X, institutional +# code and/or course owner are preserved from the existing +# record when writing a new record in response to 1.1 or +# 1.2 implementations of lonnet::flushcourselogs(). +# # $client - Socket open on the client. # Returns: # 1 - indicating that processing should continue @@ -3168,7 +3477,7 @@ sub put_course_id_handler { my $userinput = "$cmd:$tail"; - my ($udom, $what) = split(/:/, $tail); + my ($udom, $what) = split(/:/, $tail,2); chomp($what); my $now=time; my @pairs=split(/\&/,$what); @@ -3176,10 +3485,43 @@ sub put_course_id_handler { my $hashref = &tie_domain_hash($udom, "nohist_courseids", &GDBM_WRCREAT()); if ($hashref) { foreach my $pair (@pairs) { - my ($key,$descr,$inst_code)=split(/=/,$pair); - $hashref->{$key}=$descr.':'.$inst_code.':'.$now; + my ($key,$courseinfo) = split(/=/,$pair,2); + $courseinfo =~ s/=/:/g; + if (defined($hashref->{$key})) { + my $value = &Apache::lonnet::thaw_unescape($hashref->{$key}); + if (ref($value) eq 'HASH') { + my @items = ('description','inst_code','owner','type'); + my @new_items = split(/:/,$courseinfo,-1); + my %storehash; + for (my $i=0; $i<@new_items; $i++) { + $storehash{$items[$i]} = &unescape($new_items[$i]); + } + $hashref->{$key} = + &Apache::lonnet::freeze_escape(\%storehash); + my $unesc_key = &unescape($key); + $hashref->{&escape('lasttime:'.$unesc_key)} = $now; + next; + } + } + my @current_items = split(/:/,$hashref->{$key},-1); + shift(@current_items); # remove description + pop(@current_items); # remove last access + my $numcurrent = scalar(@current_items); + if ($numcurrent > 3) { + $numcurrent = 3; + } + my @new_items = split(/:/,$courseinfo,-1); + my $numnew = scalar(@new_items); + if ($numcurrent > 0) { + if ($numnew <= $numcurrent) { # flushcourselogs() from pre 2.2 + for (my $j=$numcurrent-$numnew; $j>=0; $j--) { + $courseinfo .= ':'.$current_items[$numcurrent-$j-1]; + } + } + } + $hashref->{$key}=$courseinfo.':'.$now; } - if (untie(%$hashref)) { + if (&untie_domain_hash($hashref)) { &Reply( $client, "ok\n", $userinput); } else { &Failure($client, "error: ".($!+0) @@ -3191,12 +3533,54 @@ sub put_course_id_handler { ." tie(GDBM) Failed ". "while attempting courseidput\n", $userinput); } - return 1; } ®ister_handler("courseidput", \&put_course_id_handler, 0, 1, 0); +sub put_course_id_hash_handler { + my ($cmd, $tail, $client) = @_; + my $userinput = "$cmd:$tail"; + my ($udom,$mode,$what) = split(/:/, $tail,3); + chomp($what); + my $now=time; + my @pairs=split(/\&/,$what); + my $hashref = &tie_domain_hash($udom, "nohist_courseids", &GDBM_WRCREAT()); + if ($hashref) { + foreach my $pair (@pairs) { + my ($key,$value)=split(/=/,$pair); + my $unesc_key = &unescape($key); + if ($mode ne 'timeonly') { + if (!defined($hashref->{&escape('lasttime:'.$unesc_key)})) { + my $curritems = &Apache::lonnet::thaw_unescape($key); + if (ref($curritems) ne 'HASH') { + my @current_items = split(/:/,$hashref->{$key},-1); + my $lasttime = pop(@current_items); + $hashref->{&escape('lasttime:'.$unesc_key)} = $lasttime; + } else { + $hashref->{&escape('lasttime:'.$unesc_key)} = ''; + } + } + $hashref->{$key} = $value; + } + if ($mode ne 'notime') { + $hashref->{&escape('lasttime:'.$unesc_key)} = $now; + } + } + if (&untie_domain_hash($hashref)) { + &Reply($client, "ok\n", $userinput); + } else { + &Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". + "while attempting courseidputhash\n", $userinput); + } + } else { + &Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ". + "while attempting courseidputhash\n", $userinput); + } + return 1; +} +®ister_handler("courseidputhash", \&put_course_id_hash_handler, 0, 1, 0); + # Retrieves the value of a course id resource keyword pattern # defined since a starting date. Both the starting date and the # keyword pattern are optional. If the starting date is not supplied it @@ -3215,6 +3599,33 @@ sub put_course_id_handler { # description - regular expression that is used to filter # the dump. Only keywords matching this regexp # will be used. +# institutional code - optional supplied code to filter +# the dump. Only courses with an institutional code +# that match the supplied code will be returned. +# owner - optional supplied username and domain of owner to +# filter the dump. Only courses for which the course +# owner matches the supplied username and/or domain +# will be returned. Pre-2.2.0 legacy entries from +# nohist_courseiddump will only contain usernames. +# type - optional parameter for selection +# regexp_ok - if true, allow the supplied institutional code +# filter to behave as a regular expression. +# rtn_as_hash - whether to return the information available for +# each matched item as a frozen hash of all +# key, value pairs in the item's hash, or as a +# colon-separated list of (in order) description, +# institutional code, and course owner. +# selfenrollonly - filter by courses allowing self-enrollment +# now or in the future (selfenrollonly = 1). +# catfilter - filter by course category, assigned to a course +# using manually defined categories (i.e., not +# self-cataloging based on onstitutional code). +# showhidden - include course in results even if course +# was set to be excluded from course catalog (DC only). +# caller - if set to 'coursecatalog', courses set to be hidden +# from course catalog will be excluded from results (unless +# overridden by "showhidden". +# # $client - The socket open on the client. # Returns: # 1 - Continue processing. @@ -3222,39 +3633,219 @@ sub put_course_id_handler { # a reply is written to $client. sub dump_course_id_handler { my ($cmd, $tail, $client) = @_; - my $userinput = "$cmd:$tail"; - my ($udom,$since,$description) =split(/:/,$tail); + my ($udom,$since,$description,$instcodefilter,$ownerfilter,$coursefilter, + $typefilter,$regexp_ok,$rtn_as_hash,$selfenrollonly,$catfilter,$showhidden, + $caller) =split(/:/,$tail); + my $now = time; if (defined($description)) { $description=&unescape($description); } else { $description='.'; } - unless (defined($since)) { $since=0; } + if (defined($instcodefilter)) { + $instcodefilter=&unescape($instcodefilter); + } else { + $instcodefilter='.'; + } + my ($ownerunamefilter,$ownerdomfilter); + if (defined($ownerfilter)) { + $ownerfilter=&unescape($ownerfilter); + if ($ownerfilter ne '.' && defined($ownerfilter)) { + if ($ownerfilter =~ /^([^:]*):([^:]*)$/) { + $ownerunamefilter = $1; + $ownerdomfilter = $2; + } else { + $ownerunamefilter = $ownerfilter; + $ownerdomfilter = ''; + } + } + } else { + $ownerfilter='.'; + } + + if (defined($coursefilter)) { + $coursefilter=&unescape($coursefilter); + } else { + $coursefilter='.'; + } + if (defined($typefilter)) { + $typefilter=&unescape($typefilter); + } else { + $typefilter='.'; + } + if (defined($regexp_ok)) { + $regexp_ok=&unescape($regexp_ok); + } + if (defined($catfilter)) { + $catfilter=&unescape($catfilter); + } + my $unpack = 1; + if ($description eq '.' && $instcodefilter eq '.' && $coursefilter eq '.' && + $typefilter eq '.') { + $unpack = 0; + } + if (!defined($since)) { $since=0; } my $qresult=''; my $hashref = &tie_domain_hash($udom, "nohist_courseids", &GDBM_WRCREAT()); if ($hashref) { while (my ($key,$value) = each(%$hashref)) { - my ($descr,$lasttime,$inst_code); - if ($value =~ m/^([^\:]*):([^\:]*):(\d+)$/) { - ($descr,$inst_code,$lasttime)=($1,$2,$3); - } else { - ($descr,$lasttime) = split(/\:/,$value); - } - if ($lasttime<$since) { next; } - if ($description eq '.') { - $qresult.=$key.'='.$descr.':'.$inst_code.'&'; - } else { - my $unescapeVal = &unescape($descr); - if (eval('$unescapeVal=~/\Q$description\E/i')) { - $qresult.=$key.'='.$descr.':'.$inst_code.'&'; - } + my ($unesc_key,$lasttime_key,$lasttime,$is_hash,%val, + %unesc_val,$selfenroll_end,$selfenroll_types); + $unesc_key = &unescape($key); + if ($unesc_key =~ /^lasttime:/) { + next; + } else { + $lasttime_key = &escape('lasttime:'.$unesc_key); + } + if ($hashref->{$lasttime_key} ne '') { + $lasttime = $hashref->{$lasttime_key}; + next if ($lasttime<$since); + } + my $items = &Apache::lonnet::thaw_unescape($value); + if (ref($items) eq 'HASH') { + $is_hash = 1; + if ($unpack || !$rtn_as_hash) { + $unesc_val{'descr'} = $items->{'description'}; + $unesc_val{'inst_code'} = $items->{'inst_code'}; + $unesc_val{'owner'} = $items->{'owner'}; + $unesc_val{'type'} = $items->{'type'}; + } + $selfenroll_types = $items->{'selfenroll_types'}; + $selfenroll_end = $items->{'selfenroll_end_date'}; + if ($selfenrollonly) { + next if (!$selfenroll_types); + if (($selfenroll_end > 0) && ($selfenroll_end <= $now)) { + next; + } + } + if ($catfilter ne '') { + next if ($items->{'category'} ne $catfilter); + } + if ($caller eq 'coursecatalog') { + if (!$showhidden) { + next if ($items->{'hidefromcat'}); + } + } + } else { + next if ($catfilter ne ''); + next if ($selfenrollonly); + $is_hash = 0; + my @courseitems = split(/:/,$value); + $lasttime = pop(@courseitems); + if ($hashref->{$lasttime_key} eq '') { + next if ($lasttime<$since); + } + ($val{'descr'},$val{'inst_code'},$val{'owner'},$val{'type'}) = @courseitems; + } + my $match = 1; + if ($description ne '.') { + if (!$is_hash) { + $unesc_val{'descr'} = &unescape($val{'descr'}); + } + if (eval{$unesc_val{'descr'} !~ /\Q$description\E/i}) { + $match = 0; + } + } + if ($instcodefilter ne '.') { + if (!$is_hash) { + $unesc_val{'inst_code'} = &unescape($val{'inst_code'}); + } + if ($regexp_ok) { + if (eval{$unesc_val{'inst_code'} !~ /$instcodefilter/}) { + $match = 0; + } + } else { + if (eval{$unesc_val{'inst_code'} !~ /\Q$instcodefilter\E/i}) { + $match = 0; + } + } } + if ($ownerfilter ne '.') { + if (!$is_hash) { + $unesc_val{'owner'} = &unescape($val{'owner'}); + } + if (($ownerunamefilter ne '') && ($ownerdomfilter ne '')) { + if ($unesc_val{'owner'} =~ /:/) { + if (eval{$unesc_val{'owner'} !~ + /\Q$ownerunamefilter\E:\Q$ownerdomfilter\E$/i}) { + $match = 0; + } + } else { + if (eval{$unesc_val{'owner'} !~ /\Q$ownerunamefilter\E/i}) { + $match = 0; + } + } + } elsif ($ownerunamefilter ne '') { + if ($unesc_val{'owner'} =~ /:/) { + if (eval{$unesc_val{'owner'} !~ /\Q$ownerunamefilter\E:[^:]+$/i}) { + $match = 0; + } + } else { + if (eval{$unesc_val{'owner'} !~ /\Q$ownerunamefilter\E/i}) { + $match = 0; + } + } + } elsif ($ownerdomfilter ne '') { + if ($unesc_val{'owner'} =~ /:/) { + if (eval{$unesc_val{'owner'} !~ /^[^:]+:\Q$ownerdomfilter\E/}) { + $match = 0; + } + } else { + if ($ownerdomfilter ne $udom) { + $match = 0; + } + } + } + } + if ($coursefilter ne '.') { + if (eval{$unesc_key !~ /^$udom(_)\Q$coursefilter\E$/}) { + $match = 0; + } + } + if ($typefilter ne '.') { + if (!$is_hash) { + $unesc_val{'type'} = &unescape($val{'type'}); + } + if ($unesc_val{'type'} eq '') { + if ($typefilter ne 'Course') { + $match = 0; + } + } else { + if (eval{$unesc_val{'type'} !~ /^\Q$typefilter\E$/}) { + $match = 0; + } + } + } + if ($match == 1) { + if ($rtn_as_hash) { + if ($is_hash) { + $qresult.=$key.'='.$value.'&'; + } else { + my %rtnhash = ( 'description' => &unescape($val{'descr'}), + 'inst_code' => &unescape($val{'inst_code'}), + 'owner' => &unescape($val{'owner'}), + 'type' => &unescape($val{'type'}), + ); + my $items = &Apache::lonnet::freeze_escape(\%rtnhash); + $qresult.=$key.'='.$items.'&'; + } + } else { + if ($is_hash) { + $qresult .= $key.'='.&escape($unesc_val{'descr'}).':'. + &escape($unesc_val{'inst_code'}).':'. + &escape($unesc_val{'owner'}).'&'; + } else { + $qresult .= $key.'='.$val{'descr'}.':'.$val{'inst_code'}. + ':'.$val{'owner'}.'&'; + } + } + } } - if (untie(%$hashref)) { + if (&untie_domain_hash($hashref)) { chop($qresult); - &Reply($client, "$qresult\n", $userinput); + &Reply($client, \$qresult, $userinput); } else { &Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". "while attempting courseiddump\n", $userinput); @@ -3263,11 +3854,102 @@ sub dump_course_id_handler { &Failure($client, "error: ".($!+0)." tie(GDBM) Failed ". "while attempting courseiddump\n", $userinput); } + return 1; +} +®ister_handler("courseiddump", \&dump_course_id_handler, 0, 1, 0); + +# +# Puts an unencrypted entry in a namespace db file at the domain level +# +# Parameters: +# $cmd - The command that got us here. +# $tail - Tail of the command (remaining parameters). +# $client - File descriptor connected to client. +# Returns +# 0 - Requested to exit, caller should shut down. +# 1 - Continue processing. +# Side effects: +# reply is written to $client. +# +sub put_domain_handler { + my ($cmd,$tail,$client) = @_; + my $userinput = "$cmd:$tail"; + + my ($udom,$namespace,$what) =split(/:/,$tail,3); + chomp($what); + my @pairs=split(/\&/,$what); + my $hashref = &tie_domain_hash($udom, "$namespace", &GDBM_WRCREAT(), + "P", $what); + if ($hashref) { + foreach my $pair (@pairs) { + my ($key,$value)=split(/=/,$pair); + $hashref->{$key}=$value; + } + if (&untie_domain_hash($hashref)) { + &Reply($client, "ok\n", $userinput); + } else { + &Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". + "while attempting putdom\n", $userinput); + } + } else { + &Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ". + "while attempting putdom\n", $userinput); + } return 1; } -®ister_handler("courseiddump", \&dump_course_id_handler, 0, 1, 0); +®ister_handler("putdom", \&put_domain_handler, 0, 1, 0); + +# Unencrypted get from the namespace database file at the domain level. +# This function retrieves a keyed item from a specific named database in the +# domain directory. +# +# Parameters: +# $cmd - Command request keyword (get). +# $tail - Tail of the command. This is a colon separated list +# consisting of the domain and the 'namespace' +# which selects the gdbm file to do the lookup in, +# & separated list of keys to lookup. Note that +# the values are returned as an & separated list too. +# $client - File descriptor open on the client. +# Returns: +# 1 - Continue processing. +# 0 - Exit. +# Side effects: +# reply is written to $client. +# + +sub get_domain_handler { + my ($cmd, $tail, $client) = @_; + + my $userinput = "$client:$tail"; + + my ($udom,$namespace,$what)=split(/:/,$tail,3); + chomp($what); + my @queries=split(/\&/,$what); + my $qresult=''; + my $hashref = &tie_domain_hash($udom, "$namespace", &GDBM_READER()); + if ($hashref) { + for (my $i=0;$i<=$#queries;$i++) { + $qresult.="$hashref->{$queries[$i]}&"; + } + if (&untie_domain_hash($hashref)) { + $qresult=~s/\&$//; + &Reply($client, \$qresult, $userinput); + } else { + &Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ". + "while attempting getdom\n",$userinput); + } + } else { + &Failure($client, "error: ".($!+0)." tie(GDBM) Failed ". + "while attempting getdom\n",$userinput); + } + + return 1; +} +®ister_handler("getdom", \&get_domain_handler, 0, 1, 0); + # # Puts an id to a domains id database. @@ -3301,7 +3983,7 @@ sub put_id_handler { my ($key,$value)=split(/=/,$pair); $hashref->{$key}=$value; } - if (untie(%$hashref)) { + if (&untie_domain_hash($hashref)) { &Reply($client, "ok\n", $userinput); } else { &Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". @@ -3314,8 +3996,8 @@ sub put_id_handler { return 1; } - ®ister_handler("idput", \&put_id_handler, 0, 1, 0); + # # Retrieves a set of id values from the id database. # Returns an & separated list of results, one for each requested id to the @@ -3350,9 +4032,9 @@ sub get_id_handler { for (my $i=0;$i<=$#queries;$i++) { $qresult.="$hashref->{$queries[$i]}&"; } - if (untie(%$hashref)) { + if (&untie_domain_hash($hashref)) { $qresult=~s/\&$//; - &Reply($client, "$qresult\n", $userinput); + &Reply($client, \$qresult, $userinput); } else { &Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ". "while attempting idget\n",$userinput); @@ -3364,10 +4046,261 @@ sub get_id_handler { return 1; } +®ister_handler("idget", \&get_id_handler, 0, 1, 0); + +# +# Puts broadcast e-mail sent by Domain Coordinator in nohist_dcmail database +# +# Parameters +# $cmd - Command keyword that caused us to be dispatched. +# $tail - Tail of the command. Consists of a colon separated: +# domain - the domain whose dcmail we are recording +# email Consists of key=value pair +# where key is unique msgid +# and value is message (in XML) +# $client - Socket open on the client. +# +# Returns: +# 1 - indicating processing should continue. +# Side effects +# reply is written to $client. +# +sub put_dcmail_handler { + my ($cmd,$tail,$client) = @_; + my $userinput = "$cmd:$tail"; + + my ($udom,$what)=split(/:/,$tail); + chomp($what); + my $hashref = &tie_domain_hash($udom, "nohist_dcmail", &GDBM_WRCREAT()); + if ($hashref) { + my ($key,$value)=split(/=/,$what); + $hashref->{$key}=$value; + } + if (&untie_domain_hash($hashref)) { + &Reply($client, "ok\n", $userinput); + } else { + &Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". + "while attempting dcmailput\n", $userinput); + } + return 1; +} +®ister_handler("dcmailput", \&put_dcmail_handler, 0, 1, 0); -register_handler("idget", \&get_id_handler, 0, 1, 0); +# +# Retrieves broadcast e-mail from nohist_dcmail database +# Returns to client an & separated list of key=value pairs, +# where key is msgid and value is message information. +# +# Parameters +# $cmd - Command keyword that caused us to be dispatched. +# $tail - Tail of the command. Consists of a colon separated: +# domain - the domain whose dcmail table we dump +# startfilter - beginning of time window +# endfilter - end of time window +# sendersfilter - & separated list of username:domain +# for senders to search for. +# $client - Socket open on the client. +# +# Returns: +# 1 - indicating processing should continue. +# Side effects +# reply (& separated list of msgid=messageinfo pairs) is +# written to $client. +# +sub dump_dcmail_handler { + my ($cmd, $tail, $client) = @_; + + my $userinput = "$cmd:$tail"; + my ($udom,$startfilter,$endfilter,$sendersfilter) = split(/:/,$tail); + chomp($sendersfilter); + my @senders = (); + if (defined($startfilter)) { + $startfilter=&unescape($startfilter); + } else { + $startfilter='.'; + } + if (defined($endfilter)) { + $endfilter=&unescape($endfilter); + } else { + $endfilter='.'; + } + if (defined($sendersfilter)) { + $sendersfilter=&unescape($sendersfilter); + @senders = map { &unescape($_) } split(/\&/,$sendersfilter); + } + my $qresult=''; + my $hashref = &tie_domain_hash($udom, "nohist_dcmail", &GDBM_WRCREAT()); + if ($hashref) { + while (my ($key,$value) = each(%$hashref)) { + my $match = 1; + my ($timestamp,$subj,$uname,$udom) = + split(/:/,&unescape(&unescape($key)),5); # yes, twice really + $subj = &unescape($subj); + unless ($startfilter eq '.' || !defined($startfilter)) { + if ($timestamp < $startfilter) { + $match = 0; + } + } + unless ($endfilter eq '.' || !defined($endfilter)) { + if ($timestamp > $endfilter) { + $match = 0; + } + } + unless (@senders < 1) { + unless (grep/^$uname:$udom$/,@senders) { + $match = 0; + } + } + if ($match == 1) { + $qresult.=$key.'='.$value.'&'; + } + } + if (&untie_domain_hash($hashref)) { + chop($qresult); + &Reply($client, \$qresult, $userinput); + } else { + &Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". + "while attempting dcmaildump\n", $userinput); + } + } else { + &Failure($client, "error: ".($!+0)." tie(GDBM) Failed ". + "while attempting dcmaildump\n", $userinput); + } + return 1; +} + +®ister_handler("dcmaildump", \&dump_dcmail_handler, 0, 1, 0); + +# +# Puts domain roles in nohist_domainroles database +# +# Parameters +# $cmd - Command keyword that caused us to be dispatched. +# $tail - Tail of the command. Consists of a colon separated: +# domain - the domain whose roles we are recording +# role - Consists of key=value pair +# where key is unique role +# and value is start/end date information +# $client - Socket open on the client. +# +# Returns: +# 1 - indicating processing should continue. +# Side effects +# reply is written to $client. # + +sub put_domainroles_handler { + my ($cmd,$tail,$client) = @_; + + my $userinput = "$cmd:$tail"; + my ($udom,$what)=split(/:/,$tail); + chomp($what); + my @pairs=split(/\&/,$what); + my $hashref = &tie_domain_hash($udom, "nohist_domainroles", &GDBM_WRCREAT()); + if ($hashref) { + foreach my $pair (@pairs) { + my ($key,$value)=split(/=/,$pair); + $hashref->{$key}=$value; + } + if (&untie_domain_hash($hashref)) { + &Reply($client, "ok\n", $userinput); + } else { + &Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". + "while attempting domroleput\n", $userinput); + } + } else { + &Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ". + "while attempting domroleput\n", $userinput); + } + + return 1; +} + +®ister_handler("domroleput", \&put_domainroles_handler, 0, 1, 0); + +# +# Retrieves domain roles from nohist_domainroles database +# Returns to client an & separated list of key=value pairs, +# where key is role and value is start and end date information. +# +# Parameters +# $cmd - Command keyword that caused us to be dispatched. +# $tail - Tail of the command. Consists of a colon separated: +# domain - the domain whose domain roles table we dump +# $client - Socket open on the client. +# +# Returns: +# 1 - indicating processing should continue. +# Side effects +# reply (& separated list of role=start/end info pairs) is +# written to $client. +# +sub dump_domainroles_handler { + my ($cmd, $tail, $client) = @_; + + my $userinput = "$cmd:$tail"; + my ($udom,$startfilter,$endfilter,$rolesfilter) = split(/:/,$tail); + chomp($rolesfilter); + my @roles = (); + if (defined($startfilter)) { + $startfilter=&unescape($startfilter); + } else { + $startfilter='.'; + } + if (defined($endfilter)) { + $endfilter=&unescape($endfilter); + } else { + $endfilter='.'; + } + if (defined($rolesfilter)) { + $rolesfilter=&unescape($rolesfilter); + @roles = split(/\&/,$rolesfilter); + } + + my $hashref = &tie_domain_hash($udom, "nohist_domainroles", &GDBM_WRCREAT()); + if ($hashref) { + my $qresult = ''; + while (my ($key,$value) = each(%$hashref)) { + my $match = 1; + my ($start,$end) = split(/:/,&unescape($value)); + my ($trole,$uname,$udom,$runame,$rudom,$rsec) = split(/:/,&unescape($key)); + unless ($startfilter eq '.' || !defined($startfilter)) { + if ($start >= $startfilter) { + $match = 0; + } + } + unless ($endfilter eq '.' || !defined($endfilter)) { + if ($end <= $endfilter) { + $match = 0; + } + } + unless (@roles < 1) { + unless (grep/^\Q$trole\E$/,@roles) { + $match = 0; + } + } + if ($match == 1) { + $qresult.=$key.'='.$value.'&'; + } + } + if (&untie_domain_hash($hashref)) { + chop($qresult); + &Reply($client, \$qresult, $userinput); + } else { + &Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". + "while attempting domrolesdump\n", $userinput); + } + } else { + &Failure($client, "error: ".($!+0)." tie(GDBM) Failed ". + "while attempting domrolesdump\n", $userinput); + } + return 1; +} + +®ister_handler("domrolesdump", \&dump_domainroles_handler, 0, 1, 0); + + # Process the tmpput command I'm not sure what this does.. Seems to # create a file in the lonDaemons/tmp directory of the form $id.tmp # where Id is the client's ip concatenated with a sequence number. @@ -3389,17 +4322,25 @@ sub tmp_put_handler { my $userinput = "$cmd:$what"; # Reconstruct for logging. - - my $store; + my ($record,$context) = split(/:/,$what); + if ($context ne '') { + chomp($context); + $context = &unescape($context); + } + my ($id,$store); $tmpsnum++; - my $id=$$.'_'.$clientip.'_'.$tmpsnum; + if ($context eq 'resetpw') { + $id = &md5_hex(&md5_hex(time.{}.rand().$$)); + } else { + $id = $$.'_'.$clientip.'_'.$tmpsnum; + } $id=~s/\W/\_/g; - $what=~s/\n//g; + $record=~s/\n//g; my $execdir=$perlvar{'lonDaemons'}; if ($store=IO::File->new(">$execdir/tmp/$id.tmp")) { - print $store $what; + print $store $record; close $store; - &Reply($client, "$id\n", $userinput); + &Reply($client, \$id, $userinput); } else { &Failure( $client, "error: ".($!+0)."IO::File->new Failed ". "while attempting tmpput\n", $userinput); @@ -3408,6 +4349,7 @@ sub tmp_put_handler { } ®ister_handler("tmpput", \&tmp_put_handler, 0, 1, 0); + # Processes the tmpget command. This command returns the contents # of a temporary resource file(?) created via tmpput. # @@ -3420,7 +4362,6 @@ sub tmp_put_handler { # 1 - Inidcating processing can continue. # Side effects: # A reply is sent to the client. - # sub tmp_get_handler { my ($cmd, $id, $client) = @_; @@ -3433,7 +4374,7 @@ sub tmp_get_handler { my $execdir=$perlvar{'lonDaemons'}; if ($store=IO::File->new("$execdir/tmp/$id.tmp")) { my $reply=<$store>; - &Reply( $client, "$reply\n", $userinput); + &Reply( $client, \$reply, $userinput); close $store; } else { &Failure( $client, "error: ".($!+0)."IO::File->new Failed ". @@ -3443,6 +4384,7 @@ sub tmp_get_handler { return 1; } ®ister_handler("tmpget", \&tmp_get_handler, 0, 1, 0); + # # Process the tmpdel command. This command deletes a temp resource # created by the tmpput command. @@ -3476,6 +4418,7 @@ sub tmp_del_handler { } ®ister_handler("tmpdel", \&tmp_del_handler, 0, 1, 0); + # # Processes the setannounce command. This command # creates a file named announce.txt in the top directory of @@ -3514,6 +4457,7 @@ sub set_announce_handler { return 1; } ®ister_handler("setannounce", \&set_announce_handler, 0, 1, 0); + # # Return the version of the daemon. This can be used to determine # the compatibility of cross version installations or, alternatively to @@ -3538,6 +4482,7 @@ sub get_version_handler { return 1; } ®ister_handler("version", \&get_version_handler, 0, 1, 0); + # Set the current host and domain. This is used to support # multihomed systems. Each IP of the system, or even separate daemons # on the same IP can be treated as handling a separate lonCAPA virtual @@ -3610,9 +4555,10 @@ sub enrollment_enabled_handler { my $userinput = $cmd.":".$tail; # For logging purposes. - my $cdom = split(/:/, $tail); # Domain we're asking about. + my ($cdom) = split(/:/, $tail, 2); # Domain we're asking about. + my $outcome = &localenroll::run($cdom); - &Reply($client, "$outcome\n", $userinput); + &Reply($client, \$outcome, $userinput); return 1; } @@ -3639,7 +4585,7 @@ sub get_sections_handler { my @secs = &localenroll::get_sections($coursecode,$cdom); my $seclist = &escape(join(':',@secs)); - &Reply($client, "$seclist\n", $userinput); + &Reply($client, \$seclist, $userinput); return 1; @@ -3666,14 +4612,16 @@ sub validate_course_owner_handler { my $userinput = "$cmd:$tail"; my ($inst_course_id, $owner, $cdom) = split(/:/, $tail); + $owner = &unescape($owner); my $outcome = &localenroll::new_course($inst_course_id,$owner,$cdom); - &Reply($client, "$outcome\n", $userinput); + &Reply($client, \$outcome, $userinput); return 1; } ®ister_handler("autonewcourse", \&validate_course_owner_handler, 0, 1, 0); + # # Validate a course section in the official schedule of classes # from the institutions point of view (part of autoenrollment). @@ -3697,7 +4645,7 @@ sub validate_course_section_handler { my ($inst_course_id, $cdom) = split(/:/, $tail); my $outcome=&localenroll::validate_courseID($inst_course_id,$cdom); - &Reply($client, "$outcome\n", $userinput); + &Reply($client, \$outcome, $userinput); return 1; @@ -3705,16 +4653,47 @@ sub validate_course_section_handler { ®ister_handler("autovalidatecourse", \&validate_course_section_handler, 0, 1, 0); # -# Create a password for a new auto-enrollment user. -# I think/guess, this password allows access to the institutions -# AIS class list server/services. Stuart can correct this comment -# when he finds out how wrong I am. +# Validate course owner's access to enrollment data for specific class section. +# +# +# Formal Parameters: +# $cmd - The command request that got us dispatched. +# $tail - The tail of the command. In this case this is a colon separated +# set of words that will be split into: +# $inst_class - Institutional code for the specific class section +# $courseowner - The escaped username:domain of the course owner +# $cdom - The domain of the course from the institution's +# point of view. +# $client - The socket open on the client. +# Returns: +# 1 - continue processing. +# + +sub validate_class_access_handler { + my ($cmd, $tail, $client) = @_; + my $userinput = "$cmd:$tail"; + my ($inst_class,$ownerlist,$cdom) = split(/:/, $tail); + my $owners = &unescape($ownerlist); + my $outcome; + eval { + local($SIG{__DIE__})='DEFAULT'; + $outcome=&localenroll::check_section($inst_class,$owners,$cdom); + }; + &Reply($client,\$outcome, $userinput); + + return 1; +} +®ister_handler("autovalidateclass_sec", \&validate_class_access_handler, 0, 1, 0); + +# +# Create a password for a new LON-CAPA user added by auto-enrollment. +# Only used for case where authentication method for new user is localauth # # Formal Parameters: # $cmd - The command request that got us dispatched. # $tail - The tail of the command. In this case this is a colon separated # set of words that will be split into: -# $authparam - An authentication parameter (username??). +# $authparam - An authentication parameter (localauth parameter). # $cdom - The domain of the course from the institution's # point of view. # $client - The socket open on the client. @@ -3754,7 +4733,6 @@ sub create_auto_enroll_password_handler # # Returns: # 1 - Continue processing. - sub retrieve_auto_file_handler { my ($cmd, $tail, $client) = @_; my $userinput = "cmd:$tail"; @@ -3822,10 +4800,10 @@ sub get_institutional_code_format_handle \%cat_titles, \%cat_order); if ($formatreply eq 'ok') { - my $codes_str = &hash2str(%codes); - my $codetitles_str = &array2str(@codetitles); - my $cat_titles_str = &hash2str(%cat_titles); - my $cat_order_str = &hash2str(%cat_order); + my $codes_str = &Apache::lonnet::hash2str(%codes); + my $codetitles_str = &Apache::lonnet::array2str(@codetitles); + my $cat_titles_str = &Apache::lonnet::hash2str(%cat_titles); + my $cat_order_str = &Apache::lonnet::hash2str(%cat_order); &Reply($client, $codes_str.':'.$codetitles_str.':'.$cat_titles_str.':' .$cat_order_str."\n", @@ -3839,20 +4817,406 @@ sub get_institutional_code_format_handle return 1; } +®ister_handler("autoinstcodeformat", + \&get_institutional_code_format_handler,0,1,0); + +sub get_institutional_defaults_handler { + my ($cmd, $tail, $client) = @_; + my $userinput = "$cmd:$tail"; + + my $dom = $tail; + my %defaults_hash; + my @code_order; + my $outcome; + eval { + local($SIG{__DIE__})='DEFAULT'; + $outcome = &localenroll::instcode_defaults($dom,\%defaults_hash, + \@code_order); + }; + if (!$@) { + if ($outcome eq 'ok') { + my $result=''; + while (my ($key,$value) = each(%defaults_hash)) { + $result.=&escape($key).'='.&escape($value).'&'; + } + $result .= 'code_order='.&escape(join('&',@code_order)); + &Reply($client,\$result,$userinput); + } else { + &Reply($client,"error\n", $userinput); + } + } else { + &Failure($client,"unknown_cmd\n",$userinput); + } +} +®ister_handler("autoinstcodedefaults", + \&get_institutional_defaults_handler,0,1,0); + +sub get_institutional_user_rules { + my ($cmd, $tail, $client) = @_; + my $userinput = "$cmd:$tail"; + my $dom = &unescape($tail); + my (%rules_hash,@rules_order); + my $outcome; + eval { + local($SIG{__DIE__})='DEFAULT'; + $outcome = &localenroll::username_rules($dom,\%rules_hash,\@rules_order); + }; + if (!$@) { + if ($outcome eq 'ok') { + my $result; + foreach my $key (keys(%rules_hash)) { + $result .= &escape($key).'='.&Apache::lonnet::freeze_escape($rules_hash{$key}).'&'; + } + $result =~ s/\&$//; + $result .= ':'; + if (@rules_order > 0) { + foreach my $item (@rules_order) { + $result .= &escape($item).'&'; + } + } + $result =~ s/\&$//; + &Reply($client,\$result,$userinput); + } else { + &Reply($client,"error\n", $userinput); + } + } else { + &Failure($client,"unknown_cmd\n",$userinput); + } +} +®ister_handler("instuserrules",\&get_institutional_user_rules,0,1,0); + +sub get_institutional_id_rules { + my ($cmd, $tail, $client) = @_; + my $userinput = "$cmd:$tail"; + my $dom = &unescape($tail); + my (%rules_hash,@rules_order); + my $outcome; + eval { + local($SIG{__DIE__})='DEFAULT'; + $outcome = &localenroll::id_rules($dom,\%rules_hash,\@rules_order); + }; + if (!$@) { + if ($outcome eq 'ok') { + my $result; + foreach my $key (keys(%rules_hash)) { + $result .= &escape($key).'='.&Apache::lonnet::freeze_escape($rules_hash{$key}).'&'; + } + $result =~ s/\&$//; + $result .= ':'; + if (@rules_order > 0) { + foreach my $item (@rules_order) { + $result .= &escape($item).'&'; + } + } + $result =~ s/\&$//; + &Reply($client,\$result,$userinput); + } else { + &Reply($client,"error\n", $userinput); + } + } else { + &Failure($client,"unknown_cmd\n",$userinput); + } +} +®ister_handler("instidrules",\&get_institutional_id_rules,0,1,0); + +sub get_institutional_selfcreate_rules { + my ($cmd, $tail, $client) = @_; + my $userinput = "$cmd:$tail"; + my $dom = &unescape($tail); + my (%rules_hash,@rules_order); + my $outcome; + eval { + local($SIG{__DIE__})='DEFAULT'; + $outcome = &localenroll::selfcreate_rules($dom,\%rules_hash,\@rules_order); + }; + if (!$@) { + if ($outcome eq 'ok') { + my $result; + foreach my $key (keys(%rules_hash)) { + $result .= &escape($key).'='.&Apache::lonnet::freeze_escape($rules_hash{$key}).'&'; + } + $result =~ s/\&$//; + $result .= ':'; + if (@rules_order > 0) { + foreach my $item (@rules_order) { + $result .= &escape($item).'&'; + } + } + $result =~ s/\&$//; + &Reply($client,\$result,$userinput); + } else { + &Reply($client,"error\n", $userinput); + } + } else { + &Failure($client,"unknown_cmd\n",$userinput); + } +} +®ister_handler("instemailrules",\&get_institutional_selfcreate_rules,0,1,0); -®ister_handler("autoinstcodeformat", \&get_institutional_code_format_handler, - 0,1,0); +sub institutional_username_check { + my ($cmd, $tail, $client) = @_; + my $userinput = "$cmd:$tail"; + my %rulecheck; + my $outcome; + my ($udom,$uname,@rules) = split(/:/,$tail); + $udom = &unescape($udom); + $uname = &unescape($uname); + @rules = map {&unescape($_);} (@rules); + eval { + local($SIG{__DIE__})='DEFAULT'; + $outcome = &localenroll::username_check($udom,$uname,\@rules,\%rulecheck); + }; + if (!$@) { + if ($outcome eq 'ok') { + my $result=''; + foreach my $key (keys(%rulecheck)) { + $result.=&escape($key).'='.&Apache::lonnet::freeze_escape($rulecheck{$key}).'&'; + } + &Reply($client,\$result,$userinput); + } else { + &Reply($client,"error\n", $userinput); + } + } else { + &Failure($client,"unknown_cmd\n",$userinput); + } +} +®ister_handler("instrulecheck",\&institutional_username_check,0,1,0); + +sub institutional_id_check { + my ($cmd, $tail, $client) = @_; + my $userinput = "$cmd:$tail"; + my %rulecheck; + my $outcome; + my ($udom,$id,@rules) = split(/:/,$tail); + $udom = &unescape($udom); + $id = &unescape($id); + @rules = map {&unescape($_);} (@rules); + eval { + local($SIG{__DIE__})='DEFAULT'; + $outcome = &localenroll::id_check($udom,$id,\@rules,\%rulecheck); + }; + if (!$@) { + if ($outcome eq 'ok') { + my $result=''; + foreach my $key (keys(%rulecheck)) { + $result.=&escape($key).'='.&Apache::lonnet::freeze_escape($rulecheck{$key}).'&'; + } + &Reply($client,\$result,$userinput); + } else { + &Reply($client,"error\n", $userinput); + } + } else { + &Failure($client,"unknown_cmd\n",$userinput); + } +} +®ister_handler("instidrulecheck",\&institutional_id_check,0,1,0); + +sub institutional_selfcreate_check { + my ($cmd, $tail, $client) = @_; + my $userinput = "$cmd:$tail"; + my %rulecheck; + my $outcome; + my ($udom,$email,@rules) = split(/:/,$tail); + $udom = &unescape($udom); + $email = &unescape($email); + @rules = map {&unescape($_);} (@rules); + eval { + local($SIG{__DIE__})='DEFAULT'; + $outcome = &localenroll::selfcreate_check($udom,$email,\@rules,\%rulecheck); + }; + if (!$@) { + if ($outcome eq 'ok') { + my $result=''; + foreach my $key (keys(%rulecheck)) { + $result.=&escape($key).'='.&Apache::lonnet::freeze_escape($rulecheck{$key}).'&'; + } + &Reply($client,\$result,$userinput); + } else { + &Reply($client,"error\n", $userinput); + } + } else { + &Failure($client,"unknown_cmd\n",$userinput); + } +} +®ister_handler("instselfcreatecheck",\&institutional_selfcreate_check,0,1,0); + +# Get domain specific conditions for import of student photographs to a course # +# Retrieves information from photo_permission subroutine in localenroll. +# Returns outcome (ok) if no processing errors, and whether course owner is +# required to accept conditions of use (yes/no). # +# +sub photo_permission_handler { + my ($cmd, $tail, $client) = @_; + my $userinput = "$cmd:$tail"; + my $cdom = $tail; + my ($perm_reqd,$conditions); + my $outcome; + eval { + local($SIG{__DIE__})='DEFAULT'; + $outcome = &localenroll::photo_permission($cdom,\$perm_reqd, + \$conditions); + }; + if (!$@) { + &Reply($client, &escape($outcome.':'.$perm_reqd.':'. $conditions)."\n", + $userinput); + } else { + &Failure($client,"unknown_cmd\n",$userinput); + } + return 1; +} +®ister_handler("autophotopermission",\&photo_permission_handler,0,1,0); + # +# Checks if student photo is available for a user in the domain, in the user's +# directory (in /userfiles/internal/studentphoto.jpg). +# Uses localstudentphoto:fetch() to ensure there is an up to date copy of +# the student's photo. + +sub photo_check_handler { + my ($cmd, $tail, $client) = @_; + my $userinput = "$cmd:$tail"; + my ($udom,$uname,$pid) = split(/:/,$tail); + $udom = &unescape($udom); + $uname = &unescape($uname); + $pid = &unescape($pid); + my $path=&propath($udom,$uname).'/userfiles/internal/'; + if (!-e $path) { + &mkpath($path); + } + my $response; + my $result = &localstudentphoto::fetch($udom,$uname,$pid,\$response); + $result .= ':'.$response; + &Reply($client, &escape($result)."\n",$userinput); + return 1; +} +®ister_handler("autophotocheck",\&photo_check_handler,0,1,0); + # +# Retrieve information from localenroll about whether to provide a button +# for users who have enbled import of student photos to initiate an +# update of photo files for registered students. Also include +# comment to display alongside button. + +sub photo_choice_handler { + my ($cmd, $tail, $client) = @_; + my $userinput = "$cmd:$tail"; + my $cdom = &unescape($tail); + my ($update,$comment); + eval { + local($SIG{__DIE__})='DEFAULT'; + ($update,$comment) = &localenroll::manager_photo_update($cdom); + }; + if (!$@) { + &Reply($client,&escape($update).':'.&escape($comment)."\n",$userinput); + } else { + &Failure($client,"unknown_cmd\n",$userinput); + } + return 1; +} +®ister_handler("autophotochoice",\&photo_choice_handler,0,1,0); + # +# Gets a student's photo to exist (in the correct image type) in the user's +# directory. +# Formal Parameters: +# $cmd - The command request that got us dispatched. +# $tail - A colon separated set of words that will be split into: +# $domain - student's domain +# $uname - student username +# $type - image type desired +# $client - The socket open on the client. +# Returns: +# 1 - continue processing. + +sub student_photo_handler { + my ($cmd, $tail, $client) = @_; + my ($domain,$uname,$ext,$type) = split(/:/, $tail); + + my $path=&propath($domain,$uname). '/userfiles/internal/'; + my $filename = 'studentphoto.'.$ext; + if ($type eq 'thumbnail') { + $filename = 'studentphoto_tn.'.$ext; + } + if (-e $path.$filename) { + &Reply($client,"ok\n","$cmd:$tail"); + return 1; + } + &mkpath($path); + my $file; + if ($type eq 'thumbnail') { + eval { + local($SIG{__DIE__})='DEFAULT'; + $file=&localstudentphoto::fetch_thumbnail($domain,$uname); + }; + } else { + $file=&localstudentphoto::fetch($domain,$uname); + } + if (!$file) { + &Failure($client,"unavailable\n","$cmd:$tail"); + return 1; + } + if (!-e $path.$filename) { &convert_photo($file,$path.$filename); } + if (-e $path.$filename) { + &Reply($client,"ok\n","$cmd:$tail"); + return 1; + } + &Failure($client,"unable_to_convert\n","$cmd:$tail"); + return 1; +} +®ister_handler("studentphoto", \&student_photo_handler, 0, 1, 0); + +sub inst_usertypes_handler { + my ($cmd, $domain, $client) = @_; + my $res; + my $userinput = $cmd.":".$domain; # For logging purposes. + my (%typeshash,@order,$result); + eval { + local($SIG{__DIE__})='DEFAULT'; + $result=&localenroll::inst_usertypes($domain,\%typeshash,\@order); + }; + if ($result eq 'ok') { + if (keys(%typeshash) > 0) { + foreach my $key (keys(%typeshash)) { + $res.=&escape($key).'='.&escape($typeshash{$key}).'&'; + } + } + $res=~s/\&$//; + $res .= ':'; + if (@order > 0) { + foreach my $item (@order) { + $res .= &escape($item).'&'; + } + } + $res=~s/\&$//; + } + &Reply($client, \$res, $userinput); + return 1; +} +®ister_handler("inst_usertypes", \&inst_usertypes_handler, 0, 1, 0); + +# mkpath makes all directories for a file, expects an absolute path with a +# file or a trailing / if just a dir is passed +# returns 1 on success 0 on failure +sub mkpath { + my ($file)=@_; + my @parts=split(/\//,$file,-1); + my $now=$parts[0].'/'.$parts[1].'/'.$parts[2]; + for (my $i=3;$i<= ($#parts-1);$i++) { + $now.='/'.$parts[$i]; + if (!-e $now) { + if (!mkdir($now,0770)) { return 0; } + } + } + return 1; +} + #--------------------------------------------------------------- # # Getting, decoding and dispatching requests: # - # # Get a Request: # Gets a Request message from the client. The transaction @@ -3885,6 +5249,22 @@ sub process_request { # fix all the userinput -> user_input. my $wasenc = 0; # True if request was encrypted. # ------------------------------------------------------------ See if encrypted + # for command + # sethost: + # : + # we just send it to the processor + # for + # sethost::: + # we do the implict set host and then do the command + if ($userinput =~ /^sethost:/) { + (my $cmd,my $newid,$userinput) = split(':',$userinput,3); + if (defined($userinput)) { + &sethost("$cmd:$newid"); + } else { + $userinput = "$cmd:$newid"; + } + } + if ($userinput =~ /^enc/) { $userinput = decipher($userinput); $wasenc=1; @@ -4080,7 +5460,7 @@ sub catchexception { $SIG{__DIE__}='DEFAULT'; &status("Catching exception"); &logthis("CRITICAL: " - ."ABNORMAL EXIT. Child $$ for server $thisserver died through " + ."ABNORMAL EXIT. Child $$ for server ".$perlvar{'lonHostID'}." died through " ."a crash with this error msg->[$error]"); &logthis('Famous last words: '.$status.' - '.$lastlog); if ($client) { print $client "error: $error\n"; } @@ -4191,53 +5571,6 @@ sub HUPSMAN { # sig } # -# Kill off hashes that describe the host table prior to re-reading it. -# Hashes affected are: -# %hostid, %hostdom %hostip %hostdns. -# -sub KillHostHashes { - foreach my $key (keys %hostid) { - delete $hostid{$key}; - } - foreach my $key (keys %hostdom) { - delete $hostdom{$key}; - } - foreach my $key (keys %hostip) { - delete $hostip{$key}; - } - foreach my $key (keys %hostdns) { - delete $hostdns{$key}; - } -} -# -# Read in the host table from file and distribute it into the various hashes: -# -# - %hostid - Indexed by IP, the loncapa hostname. -# - %hostdom - Indexed by loncapa hostname, the domain. -# - %hostip - Indexed by hostid, the Ip address of the host. -sub ReadHostTable { - - open (CONFIG,"$perlvar{'lonTabDir'}/hosts.tab") || die "Can't read host file"; - my $myloncapaname = $perlvar{'lonHostID'}; - Debug("My loncapa name is : $myloncapaname"); - while (my $configline=) { - if (!($configline =~ /^\s*\#/)) { - my ($id,$domain,$role,$name,$ip)=split(/:/,$configline); - chomp($ip); $ip=~s/\D+$//; - $hostid{$ip}=$id; # LonCAPA name of host by IP. - $hostdom{$id}=$domain; # LonCAPA domain name of host. - $hostip{$id}=$ip; # IP address of host. - $hostdns{$name} = $id; # LonCAPA name of host by DNS. - - if ($id eq $perlvar{'lonHostID'}) { - Debug("Found me in the host table: $name"); - $thisserver=$name; - } - } - } - close(CONFIG); -} -# # Reload the Apache daemon's state. # This is done by invoking /home/httpd/perl/apachereload # a setuid perl script that can be root for us to do this job. @@ -4268,13 +5601,12 @@ sub UpdateHosts { # either dropped or changed hosts. Note that the re-read of the table # will take care of new and changed hosts as connections come into being. + &Apache::lonnet::reset_hosts_info(); - KillHostHashes; - ReadHostTable; - - foreach my $child (keys %children) { + foreach my $child (keys(%children)) { my $childip = $children{$child}; - if(!$hostid{$childip}) { + if ($childip ne '127.0.0.1' + && !defined(&Apache::lonnet::get_hosts_from_ip($childip))) { logthis(' UpdateHosts killing child ' ." $child for ip $childip "); kill('INT', $child); @@ -4359,12 +5691,15 @@ sub Debug { # sub Reply { my ($fd, $reply, $request) = @_; - print $fd $reply; - Debug("Request was $request Reply was $reply"); - + if (ref($reply)) { + print $fd $$reply; + print $fd "\n"; + if ($DEBUG) { Debug("Request was $request Reply was $$reply"); } + } else { + print $fd $reply; + if ($DEBUG) { Debug("Request was $request Reply was $reply"); } + } $Transactions++; - - } @@ -4407,7 +5742,7 @@ sub logstatus { flock(LOG,LOCK_EX); print LOG $$."\t".$clientname."\t".$currenthostid."\t" .$status."\t".$lastlog."\t $keymode\n"; - flock(DB,LOCK_UN); + flock(LOG,LOCK_UN); close(LOG); } &status("Finished logging"); @@ -4436,79 +5771,6 @@ sub status { $0='lond: '.$what.' '.$local; } -# -------------------------------------------------------- Escape Special Chars - -sub escape { - my $str=shift; - $str =~ s/(\W)/"%".unpack('H2',$1)/eg; - return $str; -} - -# ----------------------------------------------------- Un-Escape Special Chars - -sub unescape { - my $str=shift; - $str =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg; - return $str; -} - -# ----------------------------------------------------------- Send USR1 to lonc - -sub reconlonc { - my $peerfile=shift; - &logthis("Trying to reconnect for $peerfile"); - my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid"; - if (my $fh=IO::File->new("$loncfile")) { - my $loncpid=<$fh>; - chomp($loncpid); - if (kill 0 => $loncpid) { - &logthis("lonc at pid $loncpid responding, sending USR1"); - kill USR1 => $loncpid; - } else { - &logthis( - "CRITICAL: " - ."lonc at pid $loncpid not responding, giving up"); - } - } else { - &logthis('CRITICAL: lonc not running, giving up'); - } -} - -# -------------------------------------------------- Non-critical communication - -sub subreply { - my ($cmd,$server)=@_; - my $peerfile="$perlvar{'lonSockDir'}/$server"; - my $sclient=IO::Socket::UNIX->new(Peer =>"$peerfile", - Type => SOCK_STREAM, - Timeout => 10) - or return "con_lost"; - print $sclient "$cmd\n"; - my $answer=<$sclient>; - chomp($answer); - if (!$answer) { $answer="con_lost"; } - return $answer; -} - -sub reply { - my ($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; -} - # -------------------------------------------------------------- Talk to lonsql sub sql_reply { @@ -4526,25 +5788,13 @@ sub sub_sql_reply { Type => SOCK_STREAM, Timeout => 10) or return "con_lost"; - print $sclient "$cmd\n"; + print $sclient "$cmd:$currentdomainid\n"; my $answer=<$sclient>; chomp($answer); if (!$answer) { $answer="con_lost"; } return $answer; } -# -------------------------------------------- Return path to profile directory - -sub propath { - my ($udom,$uname)=@_; - $udom=~s/\W//g; - $uname=~s/\W//g; - my $subdir=$uname.'__'; - $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/; - my $proname="$perlvar{'lonUsersDir'}/$udom/$subdir/$uname"; - return $proname; -} - # --------------------------------------- Is this the home server of an author? sub ishome { @@ -4589,8 +5839,9 @@ $SIG{USR1} = \&checkchildren; $SIG{USR2} = \&UpdateHosts; # Read the host hashes: +&Apache::lonnet::load_hosts_tab(); -ReadHostTable; +my $dist=`$perlvar{'lonDaemons'}/distprobe`; # -------------------------------------------------------------- # Accept connections. When a connection comes in, it is validated @@ -4638,8 +5889,6 @@ sub make_new_child { if (defined($iaddr)) { $clientip = inet_ntoa($iaddr); Debug("Connected with $clientip"); - $clientdns = gethostbyaddr($iaddr, AF_INET); - Debug("Connected with $clientdns by name"); } else { &logthis("Unable to determine clientip"); $clientip='Unavailable'; @@ -4669,7 +5918,10 @@ sub make_new_child { # my $tmpsnum=0; # Now global #---------------------------------------------------- kerberos 5 initialization &Authen::Krb5::init_context(); - &Authen::Krb5::init_ets(); + unless (($dist eq 'fedora5') || ($dist eq 'fedora4') || + ($dist eq 'fedora6') || ($dist eq 'suse9.3')) { + &Authen::Krb5::init_ets(); + } &status('Accepted connection'); # ============================================================================= @@ -4677,20 +5929,23 @@ sub make_new_child { # ----------------------------------------------------------------------------- # see if we know client and 'check' for spoof IP by ineffective challenge - ReadManagerTable; # May also be a manager!! - - my $clientrec=($hostid{$clientip} ne undef); - my $ismanager=($managers{$clientip} ne undef); + my $outsideip=$clientip; + if ($clientip eq '127.0.0.1') { + $outsideip=&Apache::lonnet::get_host_ip($perlvar{'lonHostID'}); + } + + my $clientrec=defined(&Apache::lonnet::get_hosts_from_ip($outsideip)); + my $ismanager=($managers{$outsideip} ne undef); $clientname = "[unknonwn]"; if($clientrec) { # Establish client type. $ConnectionType = "client"; - $clientname = $hostid{$clientip}; + $clientname = (&Apache::lonnet::get_hosts_from_ip($outsideip))[-1]; if($ismanager) { $ConnectionType = "both"; } } else { $ConnectionType = "manager"; - $clientname = $managers{$clientip}; + $clientname = $managers{$outsideip}; } my $clientok; @@ -4703,7 +5958,7 @@ sub make_new_child { my $remotereq=<$client>; chomp($remotereq); Debug("Got init: $remotereq"); - my $inikeyword = split(/:/, $remotereq); + if ($remotereq =~ /^init/) { &sethost("sethost:$perlvar{'lonHostID'}"); # @@ -4791,14 +6046,9 @@ sub make_new_child { if ($clientok) { # ---------------- New known client connecting, could mean machine online again - - foreach my $id (keys(%hostip)) { - if ($hostip{$id} ne $clientip || - $hostip{$currenthostid} eq $clientip) { - # no need to try to do recon's to myself - next; - } - &reconlonc("$perlvar{'lonSockDir'}/$id"); + if (&Apache::lonnet::get_host_ip($currenthostid) ne $clientip + && $clientip ne '127.0.0.1') { + &Apache::lonnet::reconlonc($clientname); } &logthis("Established connection: $clientname"); &status('Will listen to '.$clientname); @@ -4854,8 +6104,11 @@ sub is_author { # Author role should show up as a key /domain/_au - my $key = "/$domain/_au"; - my $value = $hashref->{$key}; + my $key = "/$domain/_au"; + my $value; + if (defined($hashref)) { + $value = $hashref->{$key}; + } if(defined($value)) { &Debug("$user @ $domain is an author"); @@ -4874,16 +6127,13 @@ sub is_author { # user - Name of the user for which the role is being put. # authtype - The authentication type associated with the user. # -sub manage_permissions -{ - - +sub manage_permissions { my ($request, $domain, $user, $authtype) = @_; &Debug("manage_permissions: $request $domain $user $authtype"); # See if the request is of the form /$domain/_au - if($request =~ /^(\/$domain\/_au)$/) { # It's an author rolesput... + if($request =~ /^(\/\Q$domain\E\/_au)$/) { # It's an author rolesput... my $execdir = $perlvar{'lonDaemons'}; my $userhome= "/home/$user" ; &logthis("system $execdir/lchtmldir $userhome $user $authtype"); @@ -4903,12 +6153,7 @@ sub manage_permissions # sub password_path { my ($domain, $user) = @_; - - - my $path = &propath($domain, $user); - $path .= "/passwd"; - - return $path; + return &propath($domain, $user).'/passwd'; } # Password Filename @@ -5006,8 +6251,7 @@ sub get_auth_type # 0 - The domain,user,password triplet is not a valid user. # sub validate_user { - my ($domain, $user, $password) = @_; - + my ($domain, $user, $password, $checkdefauth) = @_; # Why negative ~pi you may well ask? Well this function is about # authentication, and therefore very important to get right. @@ -5030,8 +6274,21 @@ sub validate_user { my $null = pack("C",0); # Used by kerberos auth types. + if ($howpwd eq 'nouser') { + if ($checkdefauth) { + my %domdefaults = &Apache::lonnet::get_domain_defaults($domain); + if ($domdefaults{'auth_def'} eq 'localauth') { + $howpwd = $domdefaults{'auth_def'}; + $contentpwd = $domdefaults{'auth_arg_def'}; + } elsif ((($domdefaults{'auth_def'} eq 'krb4') || + ($domdefaults{'auth_def'} eq 'krb5')) && + ($domdefaults{'auth_arg_def'} ne '')) { + $howpwd = $domdefaults{'auth_def'}; + $contentpwd = $domdefaults{'auth_arg_def'}; + } + } + } if ($howpwd ne 'nouser') { - if($howpwd eq "internal") { # Encrypted is in local password file. $validated = (crypt($password, $contentpwd) eq $contentpwd); } @@ -5080,12 +6337,24 @@ sub validate_user { 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); + $credentials->initialize(&Authen::Krb5::parse_name($user.'@' + .$contentpwd)); + my $krbreturn; + if (exists(&Authen::Krb5::get_init_creds_password)) { + $krbreturn = + &Authen::Krb5::get_init_creds_password($krbclient,$password, + $krbservice); + $validated = (ref($krbreturn) eq 'Authen::Krb5::Creds'); + } else { + $krbreturn = + &Authen::Krb5::get_in_tkt_with_password($krbclient,$krbserver, + $password,$credentials); + $validated = ($krbreturn == 1); + } + if (!$validated) { + &logthis('krb5: '.$user.', '.$contentpwd.', '. + &Authen::Krb5::error()); + } } else { $validated = 0; } @@ -5093,7 +6362,12 @@ sub validate_user { # Authenticate via installation specific authentcation method: $validated = &localauth::localauth($user, $password, - $contentpwd); + $contentpwd, + $domain); + if ($validated < 0) { + &logthis("localauth for $contentpwd $user:$domain returned a $validated"); + $validated = 0; + } } else { # Unrecognized auth is also bad. $validated = 0; } @@ -5119,8 +6393,7 @@ sub addline { my ($fname,$hostid,$ip,$newline)=@_; my $contents; my $found=0; - my $expr='^'.$hostid.':'.$ip.':'; - $expr =~ s/\./\\\./g; + my $expr='^'.quotemeta($hostid).':'.quotemeta($ip).':'; my $sh; if ($sh=IO::File->new("$fname.subscription")) { while (my $subline=<$sh>) { @@ -5136,39 +6409,51 @@ sub addline { } sub get_chat { - my ($cdom,$cname,$udom,$uname)=@_; - my %hash; - my $proname=&propath($cdom,$cname); + my ($cdom,$cname,$udom,$uname,$group)=@_; + my @entries=(); - if (tie(%hash,'GDBM_File',"$proname/nohist_chatroom.db", - &GDBM_READER(),0640)) { - @entries=map { $_.':'.$hash{$_} } sort keys %hash; - untie %hash; + my $namespace = 'nohist_chatroom'; + my $namespace_inroom = 'nohist_inchatroom'; + if ($group ne '') { + $namespace .= '_'.$group; + $namespace_inroom .= '_'.$group; + } + my $hashref = &tie_user_hash($cdom, $cname, $namespace, + &GDBM_READER()); + if ($hashref) { + @entries=map { $_.':'.$hashref->{$_} } sort(keys(%$hashref)); + &untie_user_hash($hashref); } my @participants=(); my $cutoff=time-60; - if (tie(%hash,'GDBM_File',"$proname/nohist_inchatroom.db", - &GDBM_WRCREAT(),0640)) { - $hash{$uname.':'.$udom}=time; - foreach (sort keys %hash) { - if ($hash{$_}>$cutoff) { - $participants[$#participants+1]='active_participant:'.$_; + $hashref = &tie_user_hash($cdom, $cname, $namespace_inroom, + &GDBM_WRCREAT()); + if ($hashref) { + $hashref->{$uname.':'.$udom}=time; + foreach my $user (sort(keys(%$hashref))) { + if ($hashref->{$user}>$cutoff) { + push(@participants, 'active_participant:'.$user); } } - untie %hash; + &untie_user_hash($hashref); } return (@participants,@entries); } sub chat_add { - my ($cdom,$cname,$newchat)=@_; - my %hash; - my $proname=&propath($cdom,$cname); + my ($cdom,$cname,$newchat,$group)=@_; my @entries=(); my $time=time; - if (tie(%hash,'GDBM_File',"$proname/nohist_chatroom.db", - &GDBM_WRCREAT(),0640)) { - @entries=map { $_.':'.$hash{$_} } sort keys %hash; + my $namespace = 'nohist_chatroom'; + my $logfile = 'chatroom.log'; + if ($group ne '') { + $namespace .= '_'.$group; + $logfile = 'chatroom_'.$group.'.log'; + } + my $hashref = &tie_user_hash($cdom, $cname, $namespace, + &GDBM_WRCREAT()); + if ($hashref) { + @entries=map { $_.':'.$hashref->{$_} } sort(keys(%$hashref)); my ($lastid)=($entries[$#entries]=~/^(\w+)\:/); my ($thentime,$idnum)=split(/\_/,$lastid); my $newid=$time.'_000000'; @@ -5178,21 +6463,22 @@ sub chat_add { $idnum=substr('000000'.$idnum,-6,6); $newid=$time.'_'.$idnum; } - $hash{$newid}=$newchat; + $hashref->{$newid}=$newchat; my $expired=$time-3600; - foreach (keys %hash) { - my ($thistime)=($_=~/(\d+)\_/); + foreach my $comment (keys(%$hashref)) { + my ($thistime) = ($comment=~/(\d+)\_/); if ($thistime<$expired) { - delete $hash{$_}; + delete $hashref->{$comment}; } } - untie %hash; - } - { - my $hfh; - if ($hfh=IO::File->new(">>$proname/chatroom.log")) { - print $hfh "$time:".&unescape($newchat)."\n"; + { + my $proname=&propath($cdom,$cname); + if (open(CHATLOG,">>$proname/$logfile")) { + print CHATLOG ("$time:".&unescape($newchat)."\n"); + } + close(CHATLOG); } + &untie_user_hash($hashref); } } @@ -5281,7 +6567,7 @@ sub thisversion { sub subscribe { my ($userinput,$clientip)=@_; my $result; - my ($cmd,$fname)=split(/:/,$userinput); + my ($cmd,$fname)=split(/:/,$userinput,2); my $ownership=&ishome($fname); if ($ownership eq 'owner') { # explitly asking for the current version? @@ -5314,7 +6600,7 @@ sub subscribe { # the metadata unless ($fname=~/\.meta$/) { &unsub("$fname.meta",$clientip); } $fname=~s/\/home\/httpd\/html\/res/raw/; - $fname="http://$thisserver/".$fname; + $fname="http://".&Apache::lonnet::hostname($perlvar{'lonHostID'})."/".$fname; $result="$fname\n"; } } else { @@ -5325,10 +6611,39 @@ sub subscribe { } return $result; } +# Change the passwd of a unix user. The caller must have +# first verified that the user is a loncapa user. +# +# Parameters: +# user - Unix user name to change. +# pass - New password for the user. +# Returns: +# ok - if success +# other - Some meaningfule error message string. +# NOTE: +# invokes a setuid script to change the passwd. +sub change_unix_password { + my ($user, $pass) = @_; + + &Debug("change_unix_password"); + my $execdir=$perlvar{'lonDaemons'}; + &Debug("Opening lcpasswd pipeline"); + my $pf = IO::File->new("|$execdir/lcpasswd > " + ."$perlvar{'lonDaemons'}" + ."/logs/lcpasswd.log"); + print $pf "$user\n$pass\n$pass\n"; + close $pf; + my $err = $?; + return ($err < @passwderrors) ? $passwderrors[$err] : + "pwchange_falure - unknown error"; + + +} + sub make_passwd_file { my ($uname, $umode,$npass,$passfilename)=@_; - my $result="ok\n"; + my $result="ok"; if ($umode eq 'krb4' or $umode eq 'krb5') { { my $pf = IO::File->new(">$passfilename"); @@ -5384,24 +6699,30 @@ sub make_passwd_file { print $se "$npass\n"; print $se "$lc_error_file\n"; # Status -> unique file. } - my $error = IO::File->new("< $lc_error_file"); - my $useraddok = <$error>; - $error->close; - unlink($lc_error_file); - - chomp $useraddok; - - if($useraddok > 0) { - my $error_text = &lcuseraddstrerror($useraddok); - &logthis("Failed lcuseradd: $error_text"); - $result = "lcuseradd_failed:$error_text\n"; - } else { - my $pf = IO::File->new(">$passfilename"); - if($pf) { - print $pf "unix:\n"; - } else { - $result = "pass_file_failed_error"; + if (-r $lc_error_file) { + &Debug("Opening error file: $lc_error_file"); + my $error = IO::File->new("< $lc_error_file"); + my $useraddok = <$error>; + $error->close; + unlink($lc_error_file); + + chomp $useraddok; + + if($useraddok > 0) { + my $error_text = &lcuseraddstrerror($useraddok); + &logthis("Failed lcuseradd: $error_text"); + $result = "lcuseradd_failed:$error_text"; + } else { + my $pf = IO::File->new(">$passfilename"); + if($pf) { + print $pf "unix:\n"; + } else { + $result = "pass_file_failed_error"; + } } + } else { + &Debug("Could not locate lcuseradd error: $lc_error_file"); + $result="bug_lcuseradd_no_output_file"; } } } elsif ($umode eq 'none') { @@ -5414,18 +6735,29 @@ sub make_passwd_file { } } } else { - $result="auth_mode_error\n"; + $result="auth_mode_error"; } return $result; } +sub convert_photo { + my ($start,$dest)=@_; + system("convert $start $dest"); +} + sub sethost { my ($remotereq) = @_; my (undef,$hostid)=split(/:/,$remotereq); + # ignore sethost if we are already correct + if ($hostid eq $currenthostid) { + return 'ok'; + } + if (!defined($hostid)) { $hostid=$perlvar{'lonHostID'}; } - if ($hostip{$perlvar{'lonHostID'}} eq $hostip{$hostid}) { + if (&Apache::lonnet::get_host_ip($perlvar{'lonHostID'}) + eq &Apache::lonnet::get_host_ip($hostid)) { $currenthostid =$hostid; - $currentdomainid=$hostdom{$hostid}; + $currentdomainid=&Apache::lonnet::host_domain($hostid); &logthis("Setting hostid to $hostid, and domain to $currentdomainid"); } else { &logthis("Requested host id $hostid not an alias of ". @@ -5441,96 +6773,6 @@ sub version { return "version:$VERSION"; } -#There is a copy of this in lonnet.pm -sub userload { - my $numusers=0; - { - opendir(LONIDS,$perlvar{'lonIDsDir'}); - my $filename; - my $curtime=time; - while ($filename=readdir(LONIDS)) { - if ($filename eq '.' || $filename eq '..') {next;} - my ($mtime)=(stat($perlvar{'lonIDsDir'}.'/'.$filename))[9]; - if ($curtime-$mtime < 1800) { $numusers++; } - } - closedir(LONIDS); - } - my $userloadpercent=0; - my $maxuserload=$perlvar{'lonUserLoadLim'}; - if ($maxuserload) { - $userloadpercent=100*$numusers/$maxuserload; - } - $userloadpercent=sprintf("%.2f",$userloadpercent); - return $userloadpercent; -} - -# Routines for serializing arrays and hashes (copies from lonnet) - -sub array2str { - my (@array) = @_; - my $result=&arrayref2str(\@array); - $result=~s/^__ARRAY_REF__//; - $result=~s/__END_ARRAY_REF__$//; - return $result; -} - -sub arrayref2str { - my ($arrayref) = @_; - my $result='__ARRAY_REF__'; - foreach my $elem (@$arrayref) { - if(ref($elem) eq 'ARRAY') { - $result.=&arrayref2str($elem).'&'; - } elsif(ref($elem) eq 'HASH') { - $result.=&hashref2str($elem).'&'; - } elsif(ref($elem)) { - #print("Got a ref of ".(ref($elem))." skipping."); - } else { - $result.=&escape($elem).'&'; - } - } - $result=~s/\&$//; - $result .= '__END_ARRAY_REF__'; - return $result; -} - -sub hash2str { - my (%hash) = @_; - my $result=&hashref2str(\%hash); - $result=~s/^__HASH_REF__//; - $result=~s/__END_HASH_REF__$//; - return $result; -} - -sub hashref2str { - my ($hashref)=@_; - my $result='__HASH_REF__'; - foreach (sort(keys(%$hashref))) { - if (ref($_) eq 'ARRAY') { - $result.=&arrayref2str($_).'='; - } elsif (ref($_) eq 'HASH') { - $result.=&hashref2str($_).'='; - } elsif (ref($_)) { - $result.='='; - #print("Got a ref of ".(ref($_))." skipping."); - } else { - if ($_) {$result.=&escape($_).'=';} else { last; } - } - - if(ref($hashref->{$_}) eq 'ARRAY') { - $result.=&arrayref2str($hashref->{$_}).'&'; - } elsif(ref($hashref->{$_}) eq 'HASH') { - $result.=&hashref2str($hashref->{$_}).'&'; - } elsif(ref($hashref->{$_})) { - $result.='&'; - #print("Got a ref of ".(ref($hashref->{$_}))." skipping."); - } else { - $result.=&escape($hashref->{$_}).'&'; - } - } - $result=~s/\&$//; - $result .= '__END_HASH_REF__'; - return $result; -} # ----------------------------------- POD (plain old documentation, CPAN style) @@ -5847,7 +7089,6 @@ to the client, and the connection is clo IO::Socket IO::File Apache::File -Symbol POSIX Crypt::IDEA LWP::UserAgent()