--- loncom/lond 2007/01/28 19:23:25 1.360 +++ loncom/lond 2011/06/12 00:08:01 1.467.2.4 @@ -2,7 +2,7 @@ # The LearningOnline Network # lond "LON Daemon" Server (port "LOND" 5663) # -# $Id: lond,v 1.360 2007/01/28 19:23:25 raeburn Exp $ +# $Id: lond,v 1.467.2.4 2011/06/12 00:08:01 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -42,24 +42,24 @@ use Crypt::IDEA; use LWP::UserAgent(); use Digest::MD5 qw(md5_hex); use GDBM_File; -use Authen::Krb4; use Authen::Krb5; use localauth; use localenroll; use localstudentphoto; use File::Copy; use File::Find; -use LONCAPA::ConfigFileEdit; use LONCAPA::lonlocal; use LONCAPA::lonssl; use Fcntl qw(:flock); +use Apache::lonnet; +use Mail::Send; my $DEBUG = 0; # Non zero to enable debug log entries. my $status=''; my $lastlog=''; -my $VERSION='$Revision: 1.360 $'; #' stupid emacs +my $VERSION='$Revision: 1.467.2.4 $'; #' stupid emacs my $remoteVERSION; my $currenthostid="default"; my $currentdomainid; @@ -67,9 +67,11 @@ my $currentdomainid; my $client; my $clientip; # IP address of client. my $clientname; # LonCAPA name of client. +my $clientversion; # LonCAPA version running on client. +my $clienthomedom; # LonCAPA domain of homeID for client. + # primary library server. my $server; -my $thisserver; # DNS of us. my $keymode; @@ -85,12 +87,6 @@ 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 %hostname; # DNSname -> ID's mapping. -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. @@ -142,13 +138,23 @@ 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.", "lcuseradd Password mismatch"); +# This array are the errors from lcinstallfile: + +my @installerrors = ("ok", + "Initial user id of client not that of www", + "Usage error, not enough command line arguments", + "Source file name does not exist", + "Destination file name does not exist", + "Some file operation failed", + "Invalid table filename." + ); # # Statistics that are maintained and dislayed in the status line. @@ -178,19 +184,16 @@ sub ResetStatistics { # $Socket - Socket open on client. # $initcmd - The full text of the init command. # -# Implicit inputs: -# $thisserver - Our DNS name. -# # Returns: # IDEA session key on success. # undef on failure. # sub LocalConnection { my ($Socket, $initcmd) = @_; - Debug("Attempting local connection: $initcmd client: $clientip me: $thisserver"); + Debug("Attempting local connection: $initcmd client: $clientip"); if($clientip ne "127.0.0.1") { &logthis(' LocalConnection rejecting non local: ' - ."$clientip ne $thisserver "); + ."$clientip ne 127.0.0.1 "); close $Socket; return undef; } else { @@ -408,6 +411,7 @@ sub isClient { # sub ReadManagerTable { + &Debug("Reading manager table"); # Clean out the old table first.. foreach my $key (keys %managers) { @@ -416,15 +420,18 @@ sub ReadManagerTable { my $tablename = $perlvar{'lonTabDir'}."/managers.tab"; if (!open (MANAGERS, $tablename)) { - logthis('No manager table. Nobody can manage!!'); - return; + my $hostname = &Apache::lonnet::hostname($perlvar{'lonHostID'}); + if (&Apache::lonnet::is_LC_dns($hostname)) { + &logthis('No manager table. Nobody can manage!!'); + } + return; } while(my $host = ) { chomp($host); 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 @@ -442,7 +449,7 @@ 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 cluster memeber } } } @@ -504,7 +511,8 @@ sub AdjustHostContents { my $me = $perlvar{'lonHostID'}; foreach my $line (split(/\n/,$contents)) { - if(!(($line eq "") || ($line =~ /^ *\#/) || ($line =~ /^ *$/))) { + if(!(($line eq "") || ($line =~ /^ *\#/) || ($line =~ /^ *$/) || + ($line =~ /^\s*\^/))) { chomp($line); my ($id,$domain,$role,$name,$ip,$maxcon,$idleto,$mincon)=split(/:/,$line); if ($id eq $me) { @@ -530,11 +538,9 @@ sub AdjustHostContents { } # # InstallFile: Called to install an administrative file: -# - The file is created with .tmp -# - The .tmp file is then mv'd to -# This lugubrious procedure is done to ensure that we are never without -# a valid, even if dated, version of the file regardless of who crashes -# and when the crash occurs. +# - The file is created int a temp directory called .tmp +# - lcinstall file is called to install the file. +# since the web app has no direct write access to the table directory # # Parameters: # Name of the file @@ -542,11 +548,16 @@ sub AdjustHostContents { # Return: # nonzero - success. # 0 - failure and $! has an errno. +# Assumptions: +# File installtion is a relatively infrequent # sub InstallFile { my ($Filename, $Contents) = @_; - my $TempFile = $Filename.".tmp"; +# my $TempFile = $Filename.".tmp"; + my $exedir = $perlvar{'lonDaemons'}; + my $tmpdir = $exedir.'/tmp/'; + my $TempFile = $tmpdir."TempTableFile.tmp"; # Open the file for write: @@ -560,11 +571,27 @@ sub InstallFile { print $fh ($Contents); $fh->close; # In case we ever have a filesystem w. locking - chmod(0660, $TempFile); + chmod(0664, $TempFile); # Everyone can write it. - # Now we can move install the file in position. - - move($TempFile, $Filename); + # Use lcinstall file to put the file in the table directory... + + &Debug("Opening pipe to $exedir/lcinstallfile $TempFile $Filename"); + my $pf = IO::File->new("| $exedir/lcinstallfile $TempFile $Filename > $exedir/logs/lcinstallfile.log"); + close $pf; + my $err = $?; + &Debug("Status is $err"); + if ($err != 0) { + my $msg = $err; + if ($err < @installerrors) { + $msg = $installerrors[$err]; + } + &logthis("Install failed for table file $Filename : $msg"); + return 0; + } + + # Remove the temp file: + + unlink($TempFile); return 1; } @@ -572,8 +599,10 @@ sub InstallFile { # # ConfigFileFromSelector: converts a configuration file selector -# (one of host or domain at this point) into a -# configuration file pathname. +# into a configuration file pathname. +# Supports the following file selectors: +# hosts, domain, dns_hosts, dns_domain +# # # Parameters: # selector - Configuration file selector. @@ -585,12 +614,9 @@ sub ConfigFileFromSelector { my $tablefile; my $tabledir = $perlvar{'lonTabDir'}.'/'; - if ($selector eq "hosts") { - $tablefile = $tabledir."hosts.tab"; - } elsif ($selector eq "domain") { - $tablefile = $tabledir."domain.tab"; - } else { - return undef; + if (($selector eq "hosts") || ($selector eq "domain") || + ($selector eq "dns_hosts") || ($selector eq "dns_domain")) { + $tablefile = $tabledir.$selector.'.tab'; } return $tablefile; @@ -613,11 +639,14 @@ sub ConfigFileFromSelector { sub PushFile { my $request = shift; my ($command, $filename, $contents) = split(":", $request, 3); + &Debug("PushFile"); # At this point in time, pushes for only the following tables are # supported: # hosts.tab ($filename eq host). # domain.tab ($filename eq domain). + # dns_hosts.tab ($filename eq dns_host). + # dns_domain.tab ($filename eq dns_domain). # Construct the destination filename or reject the request. # # lonManage is supposed to ensure this, however this session could be @@ -629,20 +658,7 @@ sub PushFile { if(! (defined $tablefile)) { return "refused"; } - # - # >copy< the old table to the backup table - # don't rename in case system crashes/reboots etc. in the time - # window between a rename and write. - # - my $backupfile = $tablefile; - $backupfile =~ s/\.tab$/.old/; - if(!CopyFile($tablefile, $backupfile)) { - &logthis(' CopyFile from '.$tablefile." to ".$backupfile." failed "); - return "error:$!"; - } - &logthis(' Pushfile: backed up ' - .$tablefile." to $backupfile"); - + # If the file being pushed is the host file, we adjust the entry for ourself so that the # IP will be our current IP as looked up in dns. Note this is only 99% good as it's possible # to conceive of conditions where we don't have a DNS entry locally. This is possible in a @@ -655,17 +671,38 @@ sub PushFile { # Install the new file: + &logthis("Installing new $tablefile contents:\n$contents"); if(!InstallFile($tablefile, $contents)) { &logthis(' Pushfile: unable to install ' .$tablefile." $! "); return "error:$!"; } else { - &logthis(' Installed new '.$tablefile - .""); - + &logthis(' Installed new '.$tablefile + ." - transaction by: $clientname ($clientip)"); + my $adminmail = $perlvar{'lonAdmEMail'}; + my $admindom = &Apache::lonnet::host_domain($perlvar{'lonHostID'}); + if ($admindom ne '') { + my %domconfig = + &Apache::lonnet::get_dom('configuration',['contacts'],$admindom); + if (ref($domconfig{'contacts'}) eq 'HASH') { + if ($domconfig{'contacts'}{'adminemail'} ne '') { + $adminmail = $domconfig{'contacts'}{'adminemail'}; + } + } + } + if ($adminmail =~ /^[^\@]+\@[^\@]+$/) { + my $msg = new Mail::Send; + $msg->to($adminmail); + $msg->subject('LON-CAPA DNS update on '.$perlvar{'lonHostID'}); + $msg->add('Content-type','text/plain; charset=UTF-8'); + if (my $fh = $msg->open()) { + print $fh 'Update to '.$tablefile.' from Cluster Manager '. + "$clientname ($clientip)\n"; + $fh->close; + } + } } - # Indicate success: return "ok"; @@ -961,6 +998,9 @@ sub read_profile { &GDBM_READER()); if ($hashref) { my @queries=split(/\&/,$what); + if ($namespace eq 'roles') { + @queries = map { &unescape($_); } @queries; + } my $qresult=''; for (my $i=0;$i<=$#queries;$i++) { @@ -1006,7 +1046,7 @@ sub ping_handler { my ($cmd, $tail, $client) = @_; Debug("$cmd $tail $client .. $currenthostid:"); - Reply( $client,"$currenthostid\n","$cmd:$tail"); + Reply( $client,\$currenthostid,"$cmd:$tail"); return 1; } @@ -1032,7 +1072,7 @@ sub ping_handler { sub pong_handler { my ($cmd, $tail, $replyfd) = @_; - my $reply=&reply("ping",$clientname); + my $reply=&Apache::lonnet::reply("ping",$clientname); &Reply( $replyfd, "$currenthostid:$reply\n", "$cmd:$tail"); return 1; } @@ -1054,7 +1094,7 @@ sub pong_handler { # Implicit Inputs: # $currenthostid - Global variable that carries the name of the host # known as. -# $clientname - Global variable that carries the name of the hsot we're connected to. +# $clientname - Global variable that carries the name of the host we're connected to. # Returns: # 1 - Ok to continue processing. # 0 - Program should exit. @@ -1076,7 +1116,7 @@ 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; @@ -1093,7 +1133,7 @@ sub establish_key_handler { # Implicit Inputs: # $currenthostid - Global variable that carries the name of the host # known as. -# $clientname - Global variable that carries the name of the hsot we're connected to. +# $clientname - Global variable that carries the name of the host we're connected to. # Returns: # 1 - Ok to continue processing. # 0 - Program should exit. @@ -1102,6 +1142,8 @@ sub establish_key_handler { sub load_handler { my ($cmd, $tail, $replyfd) = @_; + + # Get the load average from /proc/loadavg and calculate it as a percentage of # the allowed load limit as set by the perl global variable lonLoadLim @@ -1113,7 +1155,7 @@ sub load_handler { my $loadpercent=100*$loadavg/$perlvar{'lonLoadLim'}; - &Reply( $replyfd, "$loadpercent\n", "$cmd:$tail"); + &Reply( $replyfd, \$loadpercent, "$cmd:$tail"); return 1; } @@ -1130,7 +1172,7 @@ sub load_handler { # Implicit Inputs: # $currenthostid - Global variable that carries the name of the host # known as. -# $clientname - Global variable that carries the name of the hsot we're connected to. +# $clientname - Global variable that carries the name of the host we're connected to. # Returns: # 1 - Ok to continue processing. # 0 - Program should exit @@ -1142,8 +1184,8 @@ sub load_handler { sub user_load_handler { my ($cmd, $tail, $replyfd) = @_; - my $userloadpercent=&userload(); - &Reply($replyfd, "$userloadpercent\n", "$cmd:$tail"); + my $userloadpercent=&Apache::lonnet::userload(); + &Reply($replyfd, \$userloadpercent, "$cmd:$tail"); return 1; } @@ -1186,7 +1228,7 @@ sub user_authorization_type { } else { $type .= ':'; } - &Reply( $replyfd, "$type\n", $userinput); + &Reply( $replyfd, \$type, $userinput); } return 1; @@ -1208,7 +1250,7 @@ sub user_authorization_type { # a reply is written to the client. sub push_file_handler { my ($cmd, $tail, $client) = @_; - + &Debug("In push file handler"); my $userinput = "$cmd:$tail"; # At this time we only know that the IP of our partner is a valid manager @@ -1216,23 +1258,27 @@ sub push_file_handler { # spoofing). my $cert = &GetCertificate($userinput); - if(&ValidManager($cert)) { + if(&ValidManager($cert)) { + &Debug("Valid manager: $client"); # Now presumably we have the bona fides of both the peer host and the # process making the request. my $reply = &PushFile($userinput); - &Reply($client, "$reply\n", $userinput); + &Reply($client, \$reply, $userinput); } else { + &logthis("push_file_handler $client is not valid"); &Failure( $client, "refused\n", $userinput); } return 1; } ®ister_handler("pushfile", \&push_file_handler, 1, 0, 1); +# The du_handler routine should be considered obsolete and is retained +# for communication with legacy servers. Please see the du2_handler. # -# du - list the disk 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 @@ -1268,12 +1314,13 @@ sub du_handler { 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\n","$cmd:$ududir"); + &Reply($client,\$total_size,"$cmd:$ududir"); } else { &Failure($client, "bad_directory:$ududir\n","$cmd:$ududir"); } @@ -1281,9 +1328,73 @@ sub du_handler { } ®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 obosolete and is retained -# for communication with legacy servers. Please see the ls2_handler. +# 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 @@ -1342,15 +1453,16 @@ 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); -# -# Please also see the ls_handler, which this routine obosolets. +# 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. # @@ -1411,10 +1523,180 @@ sub ls2_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("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 '') && ($dir_root ne '/')) { + if ($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, $userinput); # This supports debug logging. + return 1; +} +®ister_handler("ls3", \&ls3_handler, 0, 1, 0); + +sub server_timezone_handler { + my ($cmd,$tail,$client) = @_; + my $userinput = "$cmd:$tail"; + my $timezone; + my $clockfile = '/etc/sysconfig/clock'; # Fedora/CentOS/SuSE + my $tzfile = '/etc/timezone'; # Debian/Ubuntu + if (-e $clockfile) { + if (open(my $fh,"<$clockfile")) { + while (<$fh>) { + next if (/^[\#\s]/); + if (/^(?:TIME)?ZONE\s*=\s*['"]?\s*([\w\/]+)/) { + $timezone = $1; + last; + } + } + close($fh); + } + } elsif (-e $tzfile) { + if (open(my $fh,"<$tzfile")) { + $timezone = <$fh>; + close($fh); + chomp($timezone); + if ($timezone =~ m{^Etc/(\w+)$}) { + $timezone = $1; + } + } + } + &Reply($client,\$timezone,$userinput); # This supports debug logging. + return 1; +} +®ister_handler("servertimezone", \&server_timezone_handler, 0, 1, 0); + +sub server_loncaparev_handler { + my ($cmd,$tail,$client) = @_; + my $userinput = "$cmd:$tail"; + &Reply($client,\$perlvar{'lonVersion'},$userinput); + return 1; +} +®ister_handler("serverloncaparev", \&server_loncaparev_handler, 0, 1, 0); + +sub server_homeID_handler { + my ($cmd,$tail,$client) = @_; + my $userinput = "$cmd:$tail"; + &Reply($client,\$perlvar{'lonHostID'},$userinput); + return 1; +} +®ister_handler("serverhomeID", \&server_homeID_handler, 0, 1, 0); + +sub server_distarch_handler { + my ($cmd,$tail,$client) = @_; + my $userinput = "$cmd:$tail"; + my $reply = &distro_and_arch(); + &Reply($client,\$reply,$userinput); + return 1; +} +®ister_handler("serverdistarch", \&server_distarch_handler, 0, 1, 0); # Process a reinit request. Reinit requests that either # lonc or lond be reinitialized so that an updated @@ -1439,7 +1721,7 @@ sub reinit_process_handler { if(&ValidManager($cert)) { chomp($userinput); my $reply = &ReinitProcess($userinput); - &Reply( $client, "$reply\n", $userinput); + &Reply( $client, \$reply, $userinput); } else { &Failure( $client, "refused\n", $userinput); } @@ -1523,15 +1805,51 @@ sub authenticate_handler { # udom - User's domain. # uname - Username. # upass - User's password. + # checkdefauth - Pass to validate_user() to try authentication + # with default auth type(s) if no user account. + # clientcancheckhost - Passed by clients with functionality in lonauth.pm + # to check if session can be hosted. - my ($udom,$uname,$upass)=split(/:/,$tail); - &Debug(" Authenticate domain = $udom, user = $uname, password = $upass"); + my ($udom, $uname, $upass, $checkdefauth, $clientcancheckhost)=split(/:/,$tail); + &Debug(" Authenticate domain = $udom, user = $uname, password = $upass, checkdefauth = $checkdefauth"); chomp($upass); $upass=&unescape($upass); - my $pwdcorrect = &validate_user($udom, $uname, $upass); + my $pwdcorrect = &validate_user($udom,$uname,$upass,$checkdefauth); if($pwdcorrect) { - &Reply( $client, "authorized\n", $userinput); + my $canhost = 1; + unless ($clientcancheckhost) { + my $uprimary_id = &Apache::lonnet::domain($udom,'primary'); + my $uint_dom = &Apache::lonnet::internet_dom($uprimary_id); + my @intdoms; + my $internet_names = &Apache::lonnet::get_internet_names($clientname); + if (ref($internet_names) eq 'ARRAY') { + @intdoms = @{$internet_names}; + } + unless ($uint_dom ne '' && grep(/^\Q$uint_dom\E$/,@intdoms)) { + my ($remote,$hosted); + my $remotesession = &get_usersession_config($udom,'remotesession'); + if (ref($remotesession) eq 'HASH') { + $remote = $remotesession->{'remote'} + } + my $hostedsession = &get_usersession_config($clienthomedom,'hostedsession'); + if (ref($hostedsession) eq 'HASH') { + $hosted = $hostedsession->{'hosted'}; + } + my $loncaparev = $clientversion; + if ($loncaparev eq '') { + $loncaparev = $Apache::lonnet::loncaparevs{$clientname}; + } + $canhost = &Apache::lonnet::can_host_session($udom,$clientname, + $loncaparev, + $remote,$hosted); + } + } + if ($canhost) { + &Reply( $client, "authorized\n", $userinput); + } else { + &Reply( $client, "not_allowed_to_host\n", $userinput); + } # # Bad credentials: Failed to authorize # @@ -1576,8 +1894,9 @@ sub change_password_handler { # npass - New password. # context - Context in which this was called # (preferences or reset_by_email). + # lonhost - HostID of server where request originated - my ($udom,$uname,$upass,$npass,$context)=split(/:/,$tail); + my ($udom,$uname,$upass,$npass,$context,$lonhost)=split(/:/,$tail); $upass=&unescape($upass); $npass=&unescape($npass); @@ -1586,9 +1905,13 @@ sub change_password_handler { # First require that the user can be authenticated with their # old password unless context was 'reset_by_email': - my $validated; + my ($validated,$failure); if ($context eq 'reset_by_email') { - $validated = 1; + if ($lonhost eq '') { + $failure = 'invalid_client'; + } else { + $validated = 1; + } } else { $validated = &validate_user($udom, $uname, $upass); } @@ -1602,8 +1925,11 @@ sub change_password_handler { $salt=substr($salt,6,2); my $ncpass=crypt($npass,$salt); if(&rewrite_password_file($udom, $uname, "internal:$ncpass")) { - &logthis("Result of password change for " - ."$uname: pwchange_success"); + my $msg="Result of password change for $uname: pwchange_success"; + if ($lonhost) { + $msg .= " - request originated from: $lonhost"; + } + &logthis($msg); &Reply($client, "ok\n", $userinput); } else { &logthis("Unable to open $uname passwd " @@ -1614,7 +1940,7 @@ sub change_password_handler { my $result = &change_unix_password($uname, $npass); &logthis("Result of password change for $uname: ". $result); - &Reply($client, "$result\n", $userinput); + &Reply($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 @@ -1624,7 +1950,10 @@ sub change_password_handler { } } else { - &Failure( $client, "non_authorized\n", $userinput); + if ($failure eq '') { + $failure = 'non_authorized'; + } + &Failure( $client, "$failure\n", $userinput); } return 1; @@ -1675,9 +2004,9 @@ sub add_user_handler { } unless ($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); @@ -1744,9 +2073,9 @@ sub change_authentication_handler { my $result = &change_unix_password($uname, $npass); &logthis("Result of password change for $uname: ".$result); if ($result eq "ok") { - &Reply($client, "$result\n") + &Reply($client, \$result); } else { - &Failure($client, "$result\n"); + &Failure($client, \$result); } } else { my $result=&make_passwd_file($uname, $umode,$npass,$passfilename); @@ -1765,7 +2094,7 @@ sub change_authentication_handler { &manage_permissions("/$udom/_au", $udom, $uname, "$umode:"); } } - &Reply($client, $result, $userinput); + &Reply($client, \$result, $userinput); } @@ -1811,16 +2140,10 @@ sub is_home_handler { ®ister_handler("home", \&is_home_handler, 0,1,0); # -# Process an update request for a resource?? I think what's going on here is -# that a resource has been modified that we hold a subscription to. +# Process an update request for a resource. +# A resource has been modified that we hold a subscription to. # If the resource is not local, then we must update, or at least invalidate our # cached copy of the resource. -# FUTURE WORK: -# I need to look at this logic carefully. My druthers would be to follow -# typical caching logic, and simple invalidate the cache, drop any subscription -# an let the next fetch start the ball rolling again... however that may -# actually be more difficult than it looks given the complex web of -# proxy servers. # Parameters: # $cmd - The command that got us here. # $tail - Tail of the command (remaining parameters). @@ -1844,20 +2167,30 @@ sub update_resource_handler { my $ownership=ishome($fname); if ($ownership eq 'not_owner') { if (-e $fname) { + # Delete preview file, if exists + unlink("$fname.tmp"); + # Get usage stats my ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size, $atime,$mtime,$ctime,$blksize,$blocks)=stat($fname); my $now=time; my $since=$now-$atime; + # If the file has not been used within lonExpire seconds, + # unsubscribe from it and delete local copy if ($since>$perlvar{'lonExpire'}) { - my $reply=&reply("unsub:$fname","$clientname"); + my $reply=&Apache::lonnet::reply("unsub:$fname","$clientname"); &devalidate_meta_cache($fname); unlink("$fname"); unlink("$fname.meta"); } else { + # Yes, this is in active use. Get a fresh copy. Since it might be in + # very active use and huge (like a movie), copy it to "in.transfer" filename first. my $transname="$fname.in.transfer"; - my $remoteurl=&reply("sub:$fname","$clientname"); + my $remoteurl=&Apache::lonnet::reply("sub:$fname","$clientname"); my $response; - alarm(120); +# FIXME: cannot replicate files that take more than two minutes to transfer? +# alarm(120); +# FIXME: this should use the LWP mechanism, not internal alarms. + alarm(1200); { my $ua=new LWP::UserAgent; my $request=new HTTP::Request('GET',"$remoteurl"); @@ -1865,11 +2198,13 @@ sub update_resource_handler { } alarm(0); if ($response->is_error()) { +# FIXME: we should probably clean up here instead of just whine unlink($transname); my $message=$response->status_line; &logthis("LWP GET: $message for $fname ($remoteurl)"); } else { if ($remoteurl!~/\.meta$/) { +# FIXME: isn't there an internal LWP mechanism for this? alarm(120); { my $ua=new LWP::UserAgent; @@ -1881,6 +2216,7 @@ sub update_resource_handler { } alarm(0); } + # we successfully transfered, copy file over to real name rename($transname,$fname); &devalidate_meta_cache($fname); } @@ -1900,22 +2236,12 @@ sub devalidate_meta_cache { my ($url) = @_; use Cache::Memcached; my $memcache = new Cache::Memcached({'servers'=>['127.0.0.1:11211']}); - $url = &declutter($url); + $url = &Apache::lonnet::declutter($url); $url =~ s-\.meta$--; my $id = &escape('meta:'.$url); $memcache->delete($id); } -sub declutter { - my $thisfn=shift; - $thisfn=~s/^\Q$perlvar{'lonDocRoot'}\E//; - $thisfn=~s/^\///; - $thisfn=~s|^adm/wrapper/||; - $thisfn=~s|^adm/coursedocs/showdoc/||; - $thisfn=~s/^res\///; - $thisfn=~s/\?.+$//; - return $thisfn; -} # # Fetch a user file from a remote server to the user's home directory # userfiles subdir. @@ -2114,6 +2440,36 @@ sub rename_user_file_handler { ®ister_handler("renameuserfile", \&rename_user_file_handler, 0,1,0); # +# Checks if the specified user has an active session on the server +# return ok if so, not_found if not +# +# Parameters: +# cmd - The request keyword that dispatched to tus. +# tail - The tail of the request (colon separated parameters). +# client - Filehandle open on the client. +# Return: +# 1. +sub user_has_session_handler { + my ($cmd, $tail, $client) = @_; + + my ($udom, $uname) = map { &unescape($_) } (split(/:/, $tail)); + + opendir(DIR,$perlvar{'lonIDsDir'}); + my $filename; + while ($filename=readdir(DIR)) { + last if ($filename=~/^\Q$uname\E_\d+_\Q$udom\E_/); + } + if ($filename) { + &Reply($client, "ok\n", "$cmd:$tail"); + } else { + &Failure($client, "not_found\n", "$cmd:$tail"); + } + return 1; + +} +®ister_handler("userhassession", \&user_has_session_handler, 0,1,0); + +# # Authenticate access to a user file by checking that the token the user's # passed also exists in their session file # @@ -2129,24 +2485,24 @@ sub token_auth_user_file_handler { my ($fname, $session) = split(/:/, $tail); chomp($session); - my $reply="non_auth\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\n"; + $reply="ok"; } else { foreach my $envname (keys(%disk_env)) { if ($envname=~ m|^userfile\.\Q$fname\E|) { - $reply="ok\n"; + $reply="ok"; last; } } } untie(%disk_env); close(ENVIN); - &Reply($client, $reply, "$cmd:$tail"); + &Reply($client, \$reply, "$cmd:$tail"); } else { &Failure($client, "invalid_token\n", "$cmd:$tail"); } @@ -2206,13 +2562,13 @@ 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) # $client - File descriptor connected to client. # Returns # 0 - Requested to exit, caller should shut down. @@ -2570,10 +2926,11 @@ sub get_profile_entry { my ($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", $userinput); } @@ -2713,7 +3070,7 @@ sub get_profile_keys { } if (&untie_user_hash($hashref)) { $qresult=~s/\&$//; - &Reply($client, "$qresult\n", $userinput); + &Reply($client, \$qresult, $userinput); } else { &Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". "while attempting keys\n", $userinput); @@ -2783,7 +3140,7 @@ sub dump_profile_database { } } chop($qresult); - &Reply($client , "$qresult\n", $userinput); + &Reply($client , \$qresult, $userinput); } else { &Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ". "while attempting currentdump\n", $userinput); @@ -2827,7 +3184,7 @@ sub dump_with_regexp { my $userinput = "$cmd:$tail"; - my ($udom,$uname,$namespace,$regexp,$range)=split(/:/,$tail); + my ($udom,$uname,$namespace,$regexp,$range,$extra)=split(/:/,$tail); if (defined($regexp)) { $regexp=&unescape($regexp); } else { @@ -2845,10 +3202,41 @@ sub dump_with_regexp { } my $hashref = &tie_user_hash($udom, $uname, $namespace, &GDBM_READER()); + my $skipcheck; if ($hashref) { my $qresult=''; my $count=0; + if ($extra ne '') { + $extra = &Apache::lonnet::thaw_unescape($extra); + $skipcheck = $extra->{'skipcheck'}; + } + my @ids = &Apache::lonnet::current_machine_ids(); + my (%homecourses,$major,$minor,$now); + if (($namespace eq 'roles') && (!$skipcheck)) { + my $loncaparev = $clientversion; + if ($loncaparev eq '') { + $loncaparev = $Apache::lonnet::loncaparevs{$clientname}; + } + if ($loncaparev =~ /^\'?(\d+)\.(\d+)\.[\w.\-]+\'?/) { + $major = $1; + $minor = $2; + } + $now = time; + } while (my ($key,$value) = each(%$hashref)) { + if ($namespace eq 'roles') { + if ($key =~ m{^/($LONCAPA::match_domain)/($LONCAPA::match_courseid)(/?[^_]*)_(cc|co|in|ta|ep|ad|st|cr)$}) { + my $cdom = $1; + my $cnum = $2; + unless ($skipcheck) { + my ($role,$end,$start) = split(/\_/,$value); + if (!$end || $end > $now) { + next unless (&releasereqd_check($cnum,$cdom,$key,$value,$major, + $minor,\%homecourses,\@ids)); + } + } + } + } if ($regexp eq '.') { $count++; if (defined($range) && $count >= $end) { last; } @@ -2865,8 +3253,14 @@ sub dump_with_regexp { } } if (&untie_user_hash($hashref)) { + if (($namespace eq 'roles') && (!$skipcheck)) { + if (keys(%homecourses) > 0) { + $qresult .= &check_homecourses(\%homecourses,$udom,$regexp,$count, + $range,$start,$end,$major,$minor); + } + } chop($qresult); - &Reply($client, "$qresult\n", $userinput); + &Reply($client, \$qresult, $userinput); } else { &Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ". "while attempting dump\n", $userinput); @@ -3074,7 +3468,7 @@ sub restore_handler { } if (&untie_user_hash($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); @@ -3155,7 +3549,7 @@ sub retrieve_chat_handler { $reply.=&escape($_).':'; } $reply=~s/\:$//; - &Reply($client, $reply."\n", $userinput); + &Reply($client, \$reply, $userinput); return 1; @@ -3292,6 +3686,22 @@ sub put_course_id_handler { foreach my $pair (@pairs) { my ($key,$courseinfo) = split(/=/,$pair,2); $courseinfo =~ s/=/:/g; + if (defined($hashref->{$key})) { + my $value = &Apache::lonnet::thaw_unescape($hashref->{$key}); + if (ref($value) eq 'HASH') { + my @items = ('description','inst_code','owner','type'); + my @new_items = split(/:/,$courseinfo,-1); + my %storehash; + for (my $i=0; $i<@new_items; $i++) { + $storehash{$items[$i]} = &unescape($new_items[$i]); + } + $hashref->{$key} = + &Apache::lonnet::freeze_escape(\%storehash); + my $unesc_key = &unescape($key); + $hashref->{&escape('lasttime:'.$unesc_key)} = $now; + next; + } + } my @current_items = split(/:/,$hashref->{$key},-1); shift(@current_items); # remove description pop(@current_items); # remove last access @@ -3308,7 +3718,7 @@ sub put_course_id_handler { } } } - $hashref->{$key}=$courseinfo.':'.$now; + $hashref->{$key}=$courseinfo.':'.$now; } if (&untie_domain_hash($hashref)) { &Reply( $client, "ok\n", $userinput); @@ -3322,12 +3732,54 @@ 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 @@ -3354,6 +3806,39 @@ sub put_course_id_handler { # owner matches the supplied username and/or domain # will be returned. Pre-2.2.0 legacy entries from # nohist_courseiddump will only contain usernames. +# type - optional parameter for selection +# regexp_ok - if 1 or -1 allow the supplied institutional code +# filter to behave as a regular expression: +# 1 will not exclude the course if the instcode matches the RE +# -1 will exclude the course if the instcode matches the RE +# rtn_as_hash - whether to return the information available for +# each matched item as a frozen hash of all +# key, value pairs in the item's hash, or as a +# colon-separated list of (in order) description, +# institutional code, and course owner. +# selfenrollonly - filter by courses allowing self-enrollment +# now or in the future (selfenrollonly = 1). +# catfilter - filter by course category, assigned to a course +# using manually defined categories (i.e., not +# self-cataloging based on on institutional code). +# showhidden - include course in results even if course +# was set to be excluded from course catalog (DC only). +# caller - if set to 'coursecatalog', courses set to be hidden +# from course catalog will be excluded from results (unless +# overridden by "showhidden". +# cloner - escaped username:domain of course cloner (if picking course to +# clone). +# cc_clone_list - escaped comma separated list of courses for which +# course cloner has active CC role (and so can clone +# automatically). +# cloneonly - filter by courses for which cloner has rights to clone. +# createdbefore - include courses for which creation date preceeded this date. +# createdafter - include courses for which creation date followed this date. +# creationcontext - include courses created in specified context +# +# domcloner - flag to indicate if user can create CCs in course's domain. +# If so, ability to clone course is automatic. +# # $client - The socket open on the client. # Returns: # 1 - Continue processing. @@ -3361,11 +3846,14 @@ 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,$instcodefilter,$ownerfilter,$coursefilter, - $typefilter,$regexp_ok) =split(/:/,$tail); + $typefilter,$regexp_ok,$rtn_as_hash,$selfenrollonly,$catfilter,$showhidden, + $caller,$cloner,$cc_clone_list,$cloneonly,$createdbefore,$createdafter, + $creationcontext,$domcloner) =split(/:/,$tail); + my $now = time; + my ($cloneruname,$clonerudom,%cc_clone); if (defined($description)) { $description=&unescape($description); } else { @@ -3405,62 +3893,236 @@ sub dump_course_id_handler { if (defined($regexp_ok)) { $regexp_ok=&unescape($regexp_ok); } - - unless (defined($since)) { $since=0; } + if (defined($catfilter)) { + $catfilter=&unescape($catfilter); + } + if (defined($cloner)) { + $cloner = &unescape($cloner); + ($cloneruname,$clonerudom) = ($cloner =~ /^($LONCAPA::match_username):($LONCAPA::match_domain)$/); + } + if (defined($cc_clone_list)) { + $cc_clone_list = &unescape($cc_clone_list); + my @cc_cloners = split('&',$cc_clone_list); + foreach my $cid (@cc_cloners) { + my ($clonedom,$clonenum) = split(':',$cid); + next if ($clonedom ne $udom); + $cc_clone{$clonedom.'_'.$clonenum} = 1; + } + } + if ($createdbefore ne '') { + $createdbefore = &unescape($createdbefore); + } else { + $createdbefore = 0; + } + if ($createdafter ne '') { + $createdafter = &unescape($createdafter); + } else { + $createdafter = 0; + } + if ($creationcontext ne '') { + $creationcontext = &unescape($creationcontext); + } else { + $creationcontext = '.'; + } + 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,$inst_code,$owner,$type); - my @courseitems = split(/:/,$value); - $lasttime = pop(@courseitems); - ($descr,$inst_code,$owner,$type)=@courseitems; - if ($lasttime<$since) { next; } + my ($unesc_key,$lasttime_key,$lasttime,$is_hash,%val, + %unesc_val,$selfenroll_end,$selfenroll_types,$created, + $context); + $unesc_key = &unescape($key); + if ($unesc_key =~ /^lasttime:/) { + next; + } else { + $lasttime_key = &escape('lasttime:'.$unesc_key); + } + if ($hashref->{$lasttime_key} ne '') { + $lasttime = $hashref->{$lasttime_key}; + next if ($lasttime<$since); + } + my ($canclone,$valchange); + my $items = &Apache::lonnet::thaw_unescape($value); + if (ref($items) eq 'HASH') { + if ($hashref->{$lasttime_key} eq '') { + next if ($since > 1); + } + $is_hash = 1; + if ($domcloner) { + $canclone = 1; + } elsif (defined($clonerudom)) { + if ($items->{'cloners'}) { + my @cloneable = split(',',$items->{'cloners'}); + if (@cloneable) { + if (grep(/^\*$/,@cloneable)) { + $canclone = 1; + } elsif (grep(/^\*:\Q$clonerudom\E$/,@cloneable)) { + $canclone = 1; + } elsif (grep(/^\Q$cloneruname\E:\Q$clonerudom\E$/,@cloneable)) { + $canclone = 1; + } + } + unless ($canclone) { + if ($cloneruname ne '' && $clonerudom ne '') { + if ($cc_clone{$unesc_key}) { + $canclone = 1; + $items->{'cloners'} .= ','.$cloneruname.':'. + $clonerudom; + $valchange = 1; + } + } + } + } elsif (defined($cloneruname)) { + if ($cc_clone{$unesc_key}) { + $canclone = 1; + $items->{'cloners'} = $cloneruname.':'.$clonerudom; + $valchange = 1; + } + unless ($canclone) { + if ($items->{'owner'} =~ /:/) { + if ($items->{'owner'} eq $cloner) { + $canclone = 1; + } + } elsif ($cloner eq $items->{'owner'}.':'.$udom) { + $canclone = 1; + } + if ($canclone) { + $items->{'cloners'} = $cloneruname.':'.$clonerudom; + $valchange = 1; + } + } + } + } + if ($unpack || !$rtn_as_hash) { + $unesc_val{'descr'} = $items->{'description'}; + $unesc_val{'inst_code'} = $items->{'inst_code'}; + $unesc_val{'owner'} = $items->{'owner'}; + $unesc_val{'type'} = $items->{'type'}; + $unesc_val{'cloners'} = $items->{'cloners'}; + $unesc_val{'created'} = $items->{'created'}; + $unesc_val{'context'} = $items->{'context'}; + } + $selfenroll_types = $items->{'selfenroll_types'}; + $selfenroll_end = $items->{'selfenroll_end_date'}; + $created = $items->{'created'}; + $context = $items->{'context'}; + if ($selfenrollonly) { + next if (!$selfenroll_types); + if (($selfenroll_end > 0) && ($selfenroll_end <= $now)) { + next; + } + } + if ($creationcontext ne '.') { + next if (($context ne '') && ($context ne $creationcontext)); + } + if ($createdbefore > 0) { + next if (($created eq '') || ($created > $createdbefore)); + } + if ($createdafter > 0) { + next if (($created eq '') || ($created <= $createdafter)); + } + if ($catfilter ne '') { + next if ($items->{'categories'} eq ''); + my @categories = split('&',$items->{'categories'}); + next if (@categories == 0); + my @subcats = split('&',$catfilter); + my $matchcat = 0; + foreach my $cat (@categories) { + if (grep(/^\Q$cat\E$/,@subcats)) { + $matchcat = 1; + last; + } + } + next if (!$matchcat); + } + if ($caller eq 'coursecatalog') { + if ($items->{'hidefromcat'} eq 'yes') { + next if !$showhidden; + } + } + } else { + next if ($catfilter ne ''); + next if ($selfenrollonly); + next if ($createdbefore || $createdafter); + next if ($creationcontext ne '.'); + if ((defined($clonerudom)) && (defined($cloneruname))) { + if ($cc_clone{$unesc_key}) { + $canclone = 1; + $val{'cloners'} = &escape($cloneruname.':'.$clonerudom); + } + } + $is_hash = 0; + my @courseitems = split(/:/,$value); + $lasttime = pop(@courseitems); + if ($hashref->{$lasttime_key} eq '') { + next if ($lasttime<$since); + } + ($val{'descr'},$val{'inst_code'},$val{'owner'},$val{'type'}) = @courseitems; + } + if ($cloneonly) { + next unless ($canclone); + } my $match = 1; - unless ($description eq '.') { - my $unescapeDescr = &unescape($descr); - unless (eval('$unescapeDescr=~/\Q$description\E/i')) { + if ($description ne '.') { + if (!$is_hash) { + $unesc_val{'descr'} = &unescape($val{'descr'}); + } + if (eval{$unesc_val{'descr'} !~ /\Q$description\E/i}) { $match = 0; - } + } } - unless ($instcodefilter eq '.' || !defined($instcodefilter)) { - my $unescapeInstcode = &unescape($inst_code); - if ($regexp_ok) { - unless (eval('$unescapeInstcode=~/$instcodefilter/')) { + if ($instcodefilter ne '.') { + if (!$is_hash) { + $unesc_val{'inst_code'} = &unescape($val{'inst_code'}); + } + if ($regexp_ok == 1) { + if (eval{$unesc_val{'inst_code'} !~ /$instcodefilter/}) { + $match = 0; + } + } elsif ($regexp_ok == -1) { + if (eval{$unesc_val{'inst_code'} =~ /$instcodefilter/}) { $match = 0; } } else { - unless (eval('$unescapeInstcode=~/\Q$instcodefilter\E/i')) { + if (eval{$unesc_val{'inst_code'} !~ /\Q$instcodefilter\E/i}) { $match = 0; } } } - unless ($ownerfilter eq '.' || !defined($ownerfilter)) { - my $unescapeOwner = &unescape($owner); + if ($ownerfilter ne '.') { + if (!$is_hash) { + $unesc_val{'owner'} = &unescape($val{'owner'}); + } if (($ownerunamefilter ne '') && ($ownerdomfilter ne '')) { - if ($unescapeOwner =~ /:/) { - if (eval('$unescapeOwner !~ - /\Q$ownerunamefilter\E:\Q$ownerdomfilter\E$/i')) { + if ($unesc_val{'owner'} =~ /:/) { + if (eval{$unesc_val{'owner'} !~ + /\Q$ownerunamefilter\E:\Q$ownerdomfilter\E$/i}) { $match = 0; } } else { - if (eval('$unescapeOwner!~/\Q$ownerunamefilter\E/i')) { + if (eval{$unesc_val{'owner'} !~ /\Q$ownerunamefilter\E/i}) { $match = 0; } } } elsif ($ownerunamefilter ne '') { - if ($unescapeOwner =~ /:/) { - if (eval('$unescapeOwner!~/\Q$ownerunamefilter\E:[^:]+$/i')) { + if ($unesc_val{'owner'} =~ /:/) { + if (eval{$unesc_val{'owner'} !~ /\Q$ownerunamefilter\E:[^:]+$/i}) { $match = 0; } } else { - if (eval('$unescapeOwner!~/\Q$ownerunamefilter\E/i')) { + if (eval{$unesc_val{'owner'} !~ /\Q$ownerunamefilter\E/i}) { $match = 0; } } } elsif ($ownerdomfilter ne '') { - if ($unescapeOwner =~ /:/) { - if (eval('$unescapeOwner!~/^[^:]+:\Q$ownerdomfilter\E/')) { + if ($unesc_val{'owner'} =~ /:/) { + if (eval{$unesc_val{'owner'} !~ /^[^:]+:\Q$ownerdomfilter\E/}) { $match = 0; } } else { @@ -3470,31 +4132,59 @@ sub dump_course_id_handler { } } } - unless ($coursefilter eq '.' || !defined($coursefilter)) { - my $unescapeCourse = &unescape($key); - unless (eval('$unescapeCourse=~/^$udom(_)\Q$coursefilter\E$/')) { + if ($coursefilter ne '.') { + if (eval{$unesc_key !~ /^$udom(_)\Q$coursefilter\E$/}) { $match = 0; } } - unless ($typefilter eq '.' || !defined($typefilter)) { - my $unescapeType = &unescape($type); - if ($type eq '') { + if ($typefilter ne '.') { + if (!$is_hash) { + $unesc_val{'type'} = &unescape($val{'type'}); + } + if ($unesc_val{'type'} eq '') { if ($typefilter ne 'Course') { $match = 0; } - } else { - unless (eval('$unescapeType=~/^\Q$typefilter\E$/')) { + } else { + if (eval{$unesc_val{'type'} !~ /^\Q$typefilter\E$/}) { $match = 0; } } } if ($match == 1) { - $qresult.=$key.'='.$descr.':'.$inst_code.':'.$owner.'&'; + if ($rtn_as_hash) { + if ($is_hash) { + if ($valchange) { + my $newvalue = &Apache::lonnet::freeze_escape($items); + $qresult.=$key.'='.$newvalue.'&'; + } else { + $qresult.=$key.'='.$value.'&'; + } + } else { + my %rtnhash = ( 'description' => &unescape($val{'descr'}), + 'inst_code' => &unescape($val{'inst_code'}), + 'owner' => &unescape($val{'owner'}), + 'type' => &unescape($val{'type'}), + 'cloners' => &unescape($val{'cloners'}), + ); + my $items = &Apache::lonnet::freeze_escape(\%rtnhash); + $qresult.=$key.'='.$items.'&'; + } + } else { + if ($is_hash) { + $qresult .= $key.'='.&escape($unesc_val{'descr'}).':'. + &escape($unesc_val{'inst_code'}).':'. + &escape($unesc_val{'owner'}).'&'; + } else { + $qresult .= $key.'='.$val{'descr'}.':'.$val{'inst_code'}. + ':'.$val{'owner'}.'&'; + } + } } } if (&untie_domain_hash($hashref)) { chop($qresult); - &Reply($client, "$qresult\n", $userinput); + &Reply($client, \$qresult, $userinput); } else { &Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". "while attempting courseiddump\n", $userinput); @@ -3503,12 +4193,57 @@ sub dump_course_id_handler { &Failure($client, "error: ".($!+0)." tie(GDBM) Failed ". "while attempting courseiddump\n", $userinput); } - - return 1; } ®ister_handler("courseiddump", \&dump_course_id_handler, 0, 1, 0); +sub course_lastaccess_handler { + my ($cmd, $tail, $client) = @_; + my $userinput = "$cmd:$tail"; + my ($cdom,$cnum) = split(':',$tail); + my (%lastaccess,$qresult); + my $hashref = &tie_domain_hash($cdom, "nohist_courseids", &GDBM_WRCREAT()); + if ($hashref) { + while (my ($key,$value) = each(%$hashref)) { + my ($unesc_key,$lasttime); + $unesc_key = &unescape($key); + if ($cnum) { + next unless ($unesc_key =~ /\Q$cdom\E_\Q$cnum\E$/); + } + if ($unesc_key =~ /^lasttime:($LONCAPA::match_domain\_$LONCAPA::match_courseid)/) { + $lastaccess{$1} = $value; + } else { + my $items = &Apache::lonnet::thaw_unescape($value); + if (ref($items) eq 'HASH') { + unless ($lastaccess{$unesc_key}) { + $lastaccess{$unesc_key} = ''; + } + } else { + my @courseitems = split(':',$value); + $lastaccess{$unesc_key} = pop(@courseitems); + } + } + } + foreach my $cid (sort(keys(%lastaccess))) { + $qresult.=&escape($cid).'='.$lastaccess{$cid}.'&'; + } + if (&untie_domain_hash($hashref)) { + if ($qresult) { + chop($qresult); + } + &Reply($client, \$qresult, $userinput); + } else { + &Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". + "while attempting lastacourseaccess\n", $userinput); + } + } else { + &Failure($client, "error: ".($!+0)." tie(GDBM) Failed ". + "while attempting lastcourseaccess\n", $userinput); + } + return 1; +} +®ister_handler("courselastaccess",\&course_lastaccess_handler, 0, 1, 0); + # # Puts an unencrypted entry in a namespace db file at the domain level # @@ -3574,6 +4309,7 @@ sub put_domain_handler { sub get_domain_handler { my ($cmd, $tail, $client) = @_; + my $userinput = "$client:$tail"; my ($udom,$namespace,$what)=split(/:/,$tail,3); @@ -3587,7 +4323,7 @@ sub get_domain_handler { } if (&untie_domain_hash($hashref)) { $qresult=~s/\&$//; - &Reply($client, "$qresult\n", $userinput); + &Reply($client, \$qresult, $userinput); } else { &Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ". "while attempting getdom\n",$userinput); @@ -3601,7 +4337,6 @@ sub get_domain_handler { } ®ister_handler("getdom", \&get_domain_handler, 0, 1, 0); - # # Puts an id to a domains id database. # @@ -3685,7 +4420,7 @@ sub get_id_handler { } if (&untie_domain_hash($hashref)) { $qresult=~s/\&$//; - &Reply($client, "$qresult\n", $userinput); + &Reply($client, \$qresult, $userinput); } else { &Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ". "while attempting idget\n",$userinput); @@ -3719,7 +4454,8 @@ sub get_id_handler { sub put_dcmail_handler { my ($cmd,$tail,$client) = @_; my $userinput = "$cmd:$tail"; - + + my ($udom,$what)=split(/:/,$tail); chomp($what); my $hashref = &tie_domain_hash($udom, "nohist_dcmail", &GDBM_WRCREAT()); @@ -3809,7 +4545,7 @@ sub dump_dcmail_handler { } 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 dcmaildump\n", $userinput); @@ -3908,27 +4644,30 @@ sub dump_domainroles_handler { $rolesfilter=&unescape($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 ($end,$start) = split(/:/,&unescape($value)); my ($trole,$uname,$udom,$runame,$rudom,$rsec) = split(/:/,&unescape($key)); - unless ($startfilter eq '.' || !defined($startfilter)) { - if ($start >= $startfilter) { + unless (@roles < 1) { + unless (grep/^\Q$trole\E$/,@roles) { $match = 0; + next; } } - unless ($endfilter eq '.' || !defined($endfilter)) { - if ($end <= $endfilter) { + unless ($startfilter eq '.' || !defined($startfilter)) { + if ((defined($start)) && ($start >= $startfilter)) { $match = 0; + next; } } - unless (@roles < 1) { - unless (grep/^$trole$/,@roles) { + unless ($endfilter eq '.' || !defined($endfilter)) { + if ((defined($end)) && (($end > 0) && ($end <= $endfilter))) { $match = 0; + next; } } if ($match == 1) { @@ -3937,7 +4676,7 @@ sub dump_domainroles_handler { } 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 domrolesdump\n", $userinput); @@ -3980,7 +4719,7 @@ sub tmp_put_handler { } my ($id,$store); $tmpsnum++; - if ($context eq 'resetpw') { + if (($context eq 'resetpw') || ($context eq 'createaccount')) { $id = &md5_hex(&md5_hex(time.{}.rand().$$)); } else { $id = $$.'_'.$clientip.'_'.$tmpsnum; @@ -3991,7 +4730,7 @@ sub tmp_put_handler { if ($store=IO::File->new(">$execdir/tmp/$id.tmp")) { 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); @@ -4025,7 +4764,7 @@ 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 ". @@ -4209,12 +4948,49 @@ sub enrollment_enabled_handler { 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; } ®ister_handler("autorun", \&enrollment_enabled_handler, 0, 1, 0); +# +# Validate an institutional code used for a LON-CAPA course. +# +# Formal Parameters: +# $cmd - The command request that got us dispatched. +# $tail - The tail of the command. In this case, +# this is a colon separated set of words that will be split +# into: +# $dom - The domain for which the check of +# institutional course code will occur. +# +# $instcode - The institutional code for the course +# being requested, or validated for rights +# to request. +# +# $owner - The course requestor (who will be the +# course owner, in the form username:domain +# +# $client - Socket open on the client. +# Returns: +# 1 - Indicating processing should continue. +# +sub validate_instcode_handler { + my ($cmd, $tail, $client) = @_; + my $userinput = "$cmd:$tail"; + my ($dom,$instcode,$owner) = split(/:/, $tail); + $instcode = &unescape($instcode); + $owner = &unescape($owner); + my ($outcome,$description) = + &localenroll::validate_instcode($dom,$instcode,$owner); + my $result = &escape($outcome).'&'.&escape($description); + &Reply($client, \$result, $userinput); + + return 1; +} +®ister_handler("autovalidateinstcode", \&validate_instcode_handler, 0, 1, 0); + # Get the official sections for which auto-enrollment is possible. # Since the admin people won't know about 'unofficial sections' # we cannot auto-enroll on them. @@ -4236,7 +5012,7 @@ sub get_sections_handler { my @secs = &localenroll::get_sections($coursecode,$cdom); my $seclist = &escape(join(':',@secs)); - &Reply($client, "$seclist\n", $userinput); + &Reply($client, \$seclist, $userinput); return 1; @@ -4261,11 +5037,12 @@ sub get_sections_handler { sub validate_course_owner_handler { my ($cmd, $tail, $client) = @_; my $userinput = "$cmd:$tail"; - my ($inst_course_id, $owner, $cdom) = split(/:/, $tail); + my ($inst_course_id, $owner, $cdom, $coowners) = split(/:/, $tail); $owner = &unescape($owner); - my $outcome = &localenroll::new_course($inst_course_id,$owner,$cdom); - &Reply($client, "$outcome\n", $userinput); + $coowners = &unescape($coowners); + my $outcome = &localenroll::new_course($inst_course_id,$owner,$cdom,$coowners); + &Reply($client, \$outcome, $userinput); @@ -4296,7 +5073,7 @@ sub validate_course_section_handler { my ($inst_course_id, $cdom) = split(/:/, $tail); my $outcome=&localenroll::validate_courseID($inst_course_id,$cdom); - &Reply($client, "$outcome\n", $userinput); + &Reply($client, \$outcome, $userinput); return 1; @@ -4323,14 +5100,14 @@ sub validate_course_section_handler { sub validate_class_access_handler { my ($cmd, $tail, $client) = @_; my $userinput = "$cmd:$tail"; - my ($inst_class,$courseowner,$cdom) = split(/:/, $tail); - $courseowner = &unescape($courseowner); + my ($inst_class,$ownerlist,$cdom) = split(/:/, $tail); + my $owners = &unescape($ownerlist); my $outcome; eval { local($SIG{__DIE__})='DEFAULT'; - $outcome=&localenroll::check_section($inst_class,$courseowner,$cdom); + $outcome=&localenroll::check_section($inst_class,$owners,$cdom); }; - &Reply($client,"$outcome\n", $userinput); + &Reply($client,\$outcome, $userinput); return 1; } @@ -4418,6 +5195,61 @@ sub retrieve_auto_file_handler { } ®ister_handler("autoretrieve", \&retrieve_auto_file_handler, 0,1,0); +sub crsreq_checks_handler { + my ($cmd, $tail, $client) = @_; + my $userinput = "$cmd:$tail"; + my $dom = $tail; + my $result; + my @reqtypes = ('official','unofficial','community'); + eval { + local($SIG{__DIE__})='DEFAULT'; + my %validations; + my $response = &localenroll::crsreq_checks($dom,\@reqtypes, + \%validations); + if ($response eq 'ok') { + foreach my $key (keys(%validations)) { + $result .= &escape($key).'='.&Apache::lonnet::freeze_escape($validations{$key}).'&'; + } + $result =~ s/\&$//; + } else { + $result = 'error'; + } + }; + if (!$@) { + &Reply($client, \$result, $userinput); + } else { + &Failure($client,"unknown_cmd\n",$userinput); + } + return 1; +} +®ister_handler("autocrsreqchecks", \&crsreq_checks_handler, 0, 1, 0); + +sub validate_crsreq_handler { + my ($cmd, $tail, $client) = @_; + my $userinput = "$cmd:$tail"; + my ($dom,$owner,$crstype,$inststatuslist,$instcode,$instseclist) = split(/:/, $tail); + $instcode = &unescape($instcode); + $owner = &unescape($owner); + $crstype = &unescape($crstype); + $inststatuslist = &unescape($inststatuslist); + $instcode = &unescape($instcode); + $instseclist = &unescape($instseclist); + my $outcome; + eval { + local($SIG{__DIE__})='DEFAULT'; + $outcome = &localenroll::validate_crsreq($dom,$owner,$crstype, + $inststatuslist,$instcode, + $instseclist); + }; + if (!$@) { + &Reply($client, \$outcome, $userinput); + } else { + &Failure($client,"unknown_cmd\n",$userinput); + } + return 1; +} +®ister_handler("autocrsreqvalidation", \&validate_crsreq_handler, 0, 1, 0); + # # Read and retrieve institutional code format (for support form). # Formal Parameters: @@ -4451,10 +5283,10 @@ sub get_institutional_code_format_handle \%cat_titles, \%cat_order); if ($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", @@ -4491,7 +5323,7 @@ sub get_institutional_defaults_handler { $result.=&escape($key).'='.&escape($value).'&'; } $result .= 'code_order='.&escape(join('&',@code_order)); - &Reply($client,$result."\n",$userinput); + &Reply($client,\$result,$userinput); } else { &Reply($client,"error\n", $userinput); } @@ -4502,6 +5334,228 @@ sub get_institutional_defaults_handler { ®ister_handler("autoinstcodedefaults", \&get_institutional_defaults_handler,0,1,0); +sub get_possible_instcodes_handler { + my ($cmd, $tail, $client) = @_; + my $userinput = "$cmd:$tail"; + + my $reply; + my $cdom = $tail; + my (@codetitles,%cat_titles,%cat_order,@code_order); + my $formatreply = &localenroll::possible_instcodes($cdom, + \@codetitles, + \%cat_titles, + \%cat_order, + \@code_order); + if ($formatreply eq 'ok') { + my $result = join('&',map {&escape($_);} (@codetitles)).':'; + $result .= join('&',map {&escape($_);} (@code_order)).':'; + foreach my $key (keys(%cat_titles)) { + $result .= &escape($key).'='.&Apache::lonnet::freeze_escape($cat_titles{$key}).'&'; + } + $result =~ s/\&$//; + $result .= ':'; + foreach my $key (keys(%cat_order)) { + $result .= &escape($key).'='.&Apache::lonnet::freeze_escape($cat_order{$key}).'&'; + } + $result =~ s/\&$//; + &Reply($client,\$result,$userinput); + } else { + &Reply($client, "format_error\n", $userinput); + } + return 1; +} +®ister_handler("autopossibleinstcodes", + \&get_possible_instcodes_handler,0,1,0); + +sub get_institutional_user_rules { + my ($cmd, $tail, $client) = @_; + my $userinput = "$cmd:$tail"; + my $dom = &unescape($tail); + my (%rules_hash,@rules_order); + my $outcome; + eval { + local($SIG{__DIE__})='DEFAULT'; + $outcome = &localenroll::username_rules($dom,\%rules_hash,\@rules_order); + }; + if (!$@) { + if ($outcome eq 'ok') { + my $result; + foreach my $key (keys(%rules_hash)) { + $result .= &escape($key).'='.&Apache::lonnet::freeze_escape($rules_hash{$key}).'&'; + } + $result =~ s/\&$//; + $result .= ':'; + if (@rules_order > 0) { + foreach my $item (@rules_order) { + $result .= &escape($item).'&'; + } + } + $result =~ s/\&$//; + &Reply($client,\$result,$userinput); + } else { + &Reply($client,"error\n", $userinput); + } + } else { + &Failure($client,"unknown_cmd\n",$userinput); + } +} +®ister_handler("instuserrules",\&get_institutional_user_rules,0,1,0); + +sub get_institutional_id_rules { + my ($cmd, $tail, $client) = @_; + my $userinput = "$cmd:$tail"; + my $dom = &unescape($tail); + my (%rules_hash,@rules_order); + my $outcome; + eval { + local($SIG{__DIE__})='DEFAULT'; + $outcome = &localenroll::id_rules($dom,\%rules_hash,\@rules_order); + }; + if (!$@) { + if ($outcome eq 'ok') { + my $result; + foreach my $key (keys(%rules_hash)) { + $result .= &escape($key).'='.&Apache::lonnet::freeze_escape($rules_hash{$key}).'&'; + } + $result =~ s/\&$//; + $result .= ':'; + if (@rules_order > 0) { + foreach my $item (@rules_order) { + $result .= &escape($item).'&'; + } + } + $result =~ s/\&$//; + &Reply($client,\$result,$userinput); + } else { + &Reply($client,"error\n", $userinput); + } + } else { + &Failure($client,"unknown_cmd\n",$userinput); + } +} +®ister_handler("instidrules",\&get_institutional_id_rules,0,1,0); + +sub get_institutional_selfcreate_rules { + my ($cmd, $tail, $client) = @_; + my $userinput = "$cmd:$tail"; + my $dom = &unescape($tail); + my (%rules_hash,@rules_order); + my $outcome; + eval { + local($SIG{__DIE__})='DEFAULT'; + $outcome = &localenroll::selfcreate_rules($dom,\%rules_hash,\@rules_order); + }; + if (!$@) { + if ($outcome eq 'ok') { + my $result; + foreach my $key (keys(%rules_hash)) { + $result .= &escape($key).'='.&Apache::lonnet::freeze_escape($rules_hash{$key}).'&'; + } + $result =~ s/\&$//; + $result .= ':'; + if (@rules_order > 0) { + foreach my $item (@rules_order) { + $result .= &escape($item).'&'; + } + } + $result =~ s/\&$//; + &Reply($client,\$result,$userinput); + } else { + &Reply($client,"error\n", $userinput); + } + } else { + &Failure($client,"unknown_cmd\n",$userinput); + } +} +®ister_handler("instemailrules",\&get_institutional_selfcreate_rules,0,1,0); + + +sub institutional_username_check { + my ($cmd, $tail, $client) = @_; + my $userinput = "$cmd:$tail"; + my %rulecheck; + my $outcome; + my ($udom,$uname,@rules) = split(/:/,$tail); + $udom = &unescape($udom); + $uname = &unescape($uname); + @rules = map {&unescape($_);} (@rules); + eval { + local($SIG{__DIE__})='DEFAULT'; + $outcome = &localenroll::username_check($udom,$uname,\@rules,\%rulecheck); + }; + if (!$@) { + if ($outcome eq 'ok') { + my $result=''; + foreach my $key (keys(%rulecheck)) { + $result.=&escape($key).'='.&Apache::lonnet::freeze_escape($rulecheck{$key}).'&'; + } + &Reply($client,\$result,$userinput); + } else { + &Reply($client,"error\n", $userinput); + } + } else { + &Failure($client,"unknown_cmd\n",$userinput); + } +} +®ister_handler("instrulecheck",\&institutional_username_check,0,1,0); + +sub institutional_id_check { + my ($cmd, $tail, $client) = @_; + my $userinput = "$cmd:$tail"; + my %rulecheck; + my $outcome; + my ($udom,$id,@rules) = split(/:/,$tail); + $udom = &unescape($udom); + $id = &unescape($id); + @rules = map {&unescape($_);} (@rules); + eval { + local($SIG{__DIE__})='DEFAULT'; + $outcome = &localenroll::id_check($udom,$id,\@rules,\%rulecheck); + }; + if (!$@) { + if ($outcome eq 'ok') { + my $result=''; + foreach my $key (keys(%rulecheck)) { + $result.=&escape($key).'='.&Apache::lonnet::freeze_escape($rulecheck{$key}).'&'; + } + &Reply($client,\$result,$userinput); + } else { + &Reply($client,"error\n", $userinput); + } + } else { + &Failure($client,"unknown_cmd\n",$userinput); + } +} +®ister_handler("instidrulecheck",\&institutional_id_check,0,1,0); + +sub institutional_selfcreate_check { + my ($cmd, $tail, $client) = @_; + my $userinput = "$cmd:$tail"; + my %rulecheck; + my $outcome; + my ($udom,$email,@rules) = split(/:/,$tail); + $udom = &unescape($udom); + $email = &unescape($email); + @rules = map {&unescape($_);} (@rules); + eval { + local($SIG{__DIE__})='DEFAULT'; + $outcome = &localenroll::selfcreate_check($udom,$email,\@rules,\%rulecheck); + }; + if (!$@) { + if ($outcome eq 'ok') { + my $result=''; + foreach my $key (keys(%rulecheck)) { + $result.=&escape($key).'='.&Apache::lonnet::freeze_escape($rulecheck{$key}).'&'; + } + &Reply($client,\$result,$userinput); + } else { + &Reply($client,"error\n", $userinput); + } + } else { + &Failure($client,"unknown_cmd\n",$userinput); + } +} +®ister_handler("instselfcreatecheck",\&institutional_selfcreate_check,0,1,0); # Get domain specific conditions for import of student photographs to a course # @@ -4630,6 +5684,35 @@ sub student_photo_handler { } ®ister_handler("studentphoto", \&student_photo_handler, 0, 1, 0); +sub inst_usertypes_handler { + my ($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 @@ -4893,7 +5976,7 @@ 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"; } @@ -4946,7 +6029,7 @@ if (-e $pidfile) { $server = IO::Socket::INET->new(LocalPort => $perlvar{'londPort'}, Type => SOCK_STREAM, Proto => 'tcp', - Reuse => 1, + ReuseAddr => 1, Listen => 10 ) or die "making socket: $@\n"; @@ -5004,75 +6087,17 @@ 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"); - my %name_to_ip; - while (my $configline=) { - if ($configline !~ /^\s*\#/ && $configline !~ /^\s*$/ ) { - my ($id,$domain,$role,$name)=split(/:/,$configline); - $name=~s/\s//g; - my $ip; - if (!exists($name_to_ip{$name})) { - $ip = gethostbyname($name); - if (!$ip || length($ip) ne 4) { - &logthis("Skipping host $id name $name no IP found\n"); - next; - } - $ip=inet_ntoa($ip); - $name_to_ip{$name} = $ip; - } else { - $ip = $name_to_ip{$name}; - } - $hostid{$ip}=$id; # LonCAPA name of host by IP. - $hostdom{$id}=$domain; # LonCAPA domain name of host. - $hostname{$id}=$name; # LonCAPA name -> DNS name - $hostip{$id}=$ip; # IP address of host. - $hostdns{$name} = $id; # LonCAPA name of host by DNS. - - if ($id eq $perlvar{'lonHostID'}) { - Debug("Found me in the host table: $name"); - $thisserver=$name; - } - } - } - close(CONFIG); -} -# # Reload the Apache daemon's state. # This is done by invoking /home/httpd/perl/apachereload # a setuid perl script that can be root for us to do this job. # sub ReloadApache { - my $execdir = $perlvar{'lonDaemons'}; - my $script = $execdir."/apachereload"; - system($script); + if (&LONCAPA::try_to_lock('/tmp/lock_apachereload')) { + my $execdir = $perlvar{'lonDaemons'}; + my $script = $execdir."/apachereload"; + system($script); + unlink('/tmp/lock_apachereload'); # Remove the lock file. + } } # @@ -5095,13 +6120,12 @@ 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', $child); @@ -5186,9 +6210,14 @@ sub Debug { # sub Reply { my ($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++; } @@ -5241,7 +6270,7 @@ sub logstatus { sub initnewstatus { my $docdir=$perlvar{'lonDocRoot'}; my $fh=IO::File->new(">$docdir/lon-status/londstatus.txt"); - my $now=time; + my $now=time(); my $local=localtime($now); print $fh "LOND status $local - parent $$\n\n"; opendir(DIR,"$docdir/lon-status/londchld"); @@ -5261,63 +6290,6 @@ sub status { $0='lond: '.$what.' '.$local; } -# ----------------------------------------------------------- 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'}/".$hostname{$server}; - my $sclient=IO::Socket::UNIX->new(Peer =>"$peerfile", - Type => SOCK_STREAM, - Timeout => 10) - or return "con_lost"; - print $sclient "sethost:$server:$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'}/".$hostname{$server}); - } - $answer=subreply($cmd,$server); - } - } else { - $answer='self_reply'; - } - return $answer; -} - # -------------------------------------------------------------- Talk to lonsql sub sql_reply { @@ -5386,11 +6358,18 @@ $SIG{USR1} = \&checkchildren; $SIG{USR2} = \&UpdateHosts; # Read the host hashes: - -ReadHostTable; +&Apache::lonnet::load_hosts_tab(); +my %iphost = &Apache::lonnet::get_iphost(1); my $dist=`$perlvar{'lonDaemons'}/distprobe`; +my $arch = `uname -i`; +chomp($arch); +if ($arch eq 'unknown') { + $arch = `uname -m`; + chomp($arch); +} + # -------------------------------------------------------------- # Accept connections. When a connection comes in, it is validated # and if good, a child process is created to process transactions @@ -5448,6 +6427,7 @@ sub make_new_child { or die "Can't unblock SIGINT for fork: $!\n"; $children{$pid} = $clientip; &status('Started child '.$pid); + close($client); return; } else { # Child can *not* return from this subroutine. @@ -5456,6 +6436,14 @@ sub make_new_child { #don't get intercepted $SIG{USR1}= \&logstatus; $SIG{ALRM}= \&timeout; + + # + # Block sigpipe as it gets thrownon socket disconnect and we want to + # deal with that as a read faiure instead. + # + my $blockset = POSIX::SigSet->new(SIGPIPE); + sigprocmask(SIG_BLOCK, $blockset); + $lastlog='Forked '; $status='Forked'; @@ -5477,19 +6465,17 @@ sub make_new_child { # ----------------------------------------------------------------------------- # see if we know client and 'check' for spoof IP by ineffective challenge - ReadManagerTable; # May also be a manager!! - my $outsideip=$clientip; if ($clientip eq '127.0.0.1') { - $outsideip=$hostip{$perlvar{'lonHostID'}}; + $outsideip=&Apache::lonnet::get_host_ip($perlvar{'lonHostID'}); } - - my $clientrec=($hostid{$outsideip} ne undef); + &ReadManagerTable(); + my $clientrec=defined(&Apache::lonnet::get_hosts_from_ip($outsideip)); my $ismanager=($managers{$outsideip} ne undef); - $clientname = "[unknonwn]"; + $clientname = "[unknown]"; if($clientrec) { # Establish client type. $ConnectionType = "client"; - $clientname = $hostid{$outsideip}; + $clientname = (&Apache::lonnet::get_hosts_from_ip($outsideip))[-1]; if($ismanager) { $ConnectionType = "both"; } @@ -5514,7 +6500,7 @@ sub make_new_child { # # If the remote is attempting a local init... give that a try: # - my ($i, $inittype) = split(/:/, $remotereq); + (my $i, my $inittype, $clientversion) = split(/:/, $remotereq); # If the connection type is ssl, but I didn't get my # certificate files yet, then I'll drop back to @@ -5534,6 +6520,7 @@ sub make_new_child { } if($inittype eq "local") { + $clientversion = $perlvar{'lonVersion'}; my $key = LocalConnection($client, $remotereq); if($key) { Debug("Got local key $key"); @@ -5541,7 +6528,7 @@ sub make_new_child { my $cipherkey = pack("H32", $key); $cipher = new IDEA($cipherkey); print $client "ok:local\n"; - &logthis('' . "Successful local authentication "); $keymode = "local" } else { @@ -5596,20 +6583,18 @@ sub make_new_child { if ($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'}/".$hostname{$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); # ------------------------------------------------------------ Process requests my $keep_going = 1; my $user_input; + my $clienthost = &Apache::lonnet::hostname($clientname); + my $clientserverhomeID = &Apache::lonnet::get_server_homeID($clienthost); + $clienthomedom = &Apache::lonnet::host_domain($clientserverhomeID); while(($user_input = get_request) && $keep_going) { alarm(120); Debug("Main: Got $user_input\n"); @@ -5768,9 +6753,7 @@ sub rewrite_password_file { # Returns the authorization type or nouser if there is no such user. # -sub get_auth_type -{ - +sub get_auth_type { my ($domain, $user) = @_; Debug("get_auth_type( $domain, $user ) \n"); @@ -5806,8 +6789,7 @@ sub get_auth_type # 0 - The domain,user,password triplet is not a valid user. # sub validate_user { - my ($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. @@ -5830,8 +6812,21 @@ 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); } @@ -5853,43 +6848,24 @@ sub validate_user { } else { $validated = 0; } - } - elsif ($howpwd eq "krb4") { # user is in kerberos 4 auth. domain. - if(! ($password =~ /$null/) ) { - my $k4error = &Authen::Krb4::get_pw_in_tkt($user, - "", - $contentpwd,, - 'krbtgt', - $contentpwd, - 1, - $password); - if(!$k4error) { - $validated = 1; - } else { - $validated = 0; - &logthis('krb4: '.$user.', '.$contentpwd.', '. - &Authen::Krb4::get_err_txt($Authen::Krb4::error)); - } - } else { - $validated = 0; # Password has a match with null. - } + } elsif ($howpwd eq "krb4") { # user is in kerberos 4 auth. domain. + my $checkwithkrb5 = 0; + if ($dist =~/^fedora(\d+)$/) { + if ($1 > 11) { + $checkwithkrb5 = 1; + } + } elsif ($dist =~ /^suse([\d.]+)$/) { + if ($1 > 11.1) { + $checkwithkrb5 = 1; + } + } + if ($checkwithkrb5) { + $validated = &krb5_authen($password,$null,$user,$contentpwd); + } else { + $validated = &krb4_authen($password,$null,$user,$contentpwd); + } } elsif ($howpwd eq "krb5") { # User is in kerberos 5 auth. domain. - if(!($password =~ /$null/)) { # Null password not allowed. - my $krbclient = &Authen::Krb5::parse_name($user.'@' - .$contentpwd); - my $krbservice = "krbtgt/".$contentpwd."\@".$contentpwd; - my $krbserver = &Authen::Krb5::parse_name($krbservice); - my $credentials= &Authen::Krb5::cc_default(); - $credentials->initialize(&Authen::Krb5::parse_name($user.'@' - .$contentpwd)); - my $krbreturn = &Authen::Krb5::get_in_tkt_with_password($krbclient, - $krbserver, - $password, - $credentials); - $validated = ($krbreturn == 1); - } else { - $validated = 0; - } + $validated = &krb5_authen($password,$null,$user,$contentpwd); } elsif ($howpwd eq "localauth") { # Authenticate via installation specific authentcation method: $validated = &localauth::localauth($user, @@ -5920,6 +6896,65 @@ sub validate_user { return $validated; } +sub krb4_authen { + my ($password,$null,$user,$contentpwd) = @_; + my $validated = 0; + if (!($password =~ /$null/) ) { # Null password not allowed. + eval { + require Authen::Krb4; + }; + if (!$@) { + my $k4error = &Authen::Krb4::get_pw_in_tkt($user, + "", + $contentpwd,, + 'krbtgt', + $contentpwd, + 1, + $password); + if(!$k4error) { + $validated = 1; + } else { + $validated = 0; + &logthis('krb4: '.$user.', '.$contentpwd.', '. + &Authen::Krb4::get_err_txt($Authen::Krb4::error)); + } + } else { + $validated = krb5_authen($password,$null,$user,$contentpwd); + } + } + return $validated; +} + +sub krb5_authen { + my ($password,$null,$user,$contentpwd) = @_; + my $validated = 0; + if(!($password =~ /$null/)) { # Null password not allowed. + my $krbclient = &Authen::Krb5::parse_name($user.'@' + .$contentpwd); + my $krbservice = "krbtgt/".$contentpwd."\@".$contentpwd; + my $krbserver = &Authen::Krb5::parse_name($krbservice); + my $credentials= &Authen::Krb5::cc_default(); + $credentials->initialize(&Authen::Krb5::parse_name($user.'@' + .$contentpwd)); + my $krbreturn; + if (exists(&Authen::Krb5::get_init_creds_password)) { + $krbreturn = + &Authen::Krb5::get_init_creds_password($krbclient,$password, + $krbservice); + $validated = (ref($krbreturn) eq 'Authen::Krb5::Creds'); + } else { + $krbreturn = + &Authen::Krb5::get_in_tkt_with_password($krbclient,$krbserver, + $password,$credentials); + $validated = ($krbreturn == 1); + } + if (!$validated) { + &logthis('krb5: '.$user.', '.$contentpwd.', '. + &Authen::Krb5::error()); + } + } + return $validated; +} sub addline { my ($fname,$hostid,$ip,$newline)=@_; @@ -6132,7 +7167,7 @@ sub subscribe { # the metadata unless ($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 { @@ -6175,7 +7210,7 @@ sub change_unix_password { 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"); @@ -6243,7 +7278,7 @@ sub make_passwd_file { if($useraddok > 0) { my $error_text = &lcuseraddstrerror($useraddok); &logthis("Failed lcuseradd: $error_text"); - $result = "lcuseradd_failed:$error_text\n"; + $result = "lcuseradd_failed:$error_text"; } else { my $pf = IO::File->new(">$passfilename"); if($pf) { @@ -6267,7 +7302,7 @@ sub make_passwd_file { } } } else { - $result="auth_mode_error\n"; + $result="auth_mode_error"; } return $result; } @@ -6286,10 +7321,11 @@ sub sethost { } if (!defined($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}; - &logthis("Setting hostid to $hostid, and domain to $currentdomainid"); + $currentdomainid=&Apache::lonnet::host_domain($hostid); +# &logthis("Setting hostid to $hostid, and domain to $currentdomainid"); } else { &logthis("Requested host id $hostid not an alias of ". $perlvar{'lonHostID'}." refusing connection"); @@ -6304,95 +7340,185 @@ sub version { return "version:$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 $result; +sub get_usersession_config { + my ($dom,$name) = @_; + my ($usersessionconf,$cached)=&Apache::lonnet::is_cached_new($name,$dom); + if (defined($cached)) { + return $usersessionconf; + } else { + my %domconfig = &Apache::lonnet::get_dom('configuration',['usersessions'],$dom); + if (ref($domconfig{'usersessions'}) eq 'HASH') { + &Apache::lonnet::do_cache_new($name,$dom,$domconfig{'usersessions'},3600); + return $domconfig{'usersessions'}; + } + } + return; +} + +sub releasereqd_check { + my ($cnum,$cdom,$key,$value,$major,$minor,$homecourses,$ids) = @_; + my $home = &Apache::lonnet::homeserver($cnum,$cdom); + return if ($home eq 'no_host'); + my ($reqdmajor,$reqdminor,$displayrole); + if ($cnum =~ /$LONCAPA::match_community/) { + if ($major eq '' && $minor eq '') { + return unless ((ref($ids) eq 'ARRAY') && + (grep(/^\Q$home\E$/,@{$ids}))); + } else { + $reqdmajor = 2; + $reqdminor = 9; + return unless (&useable_role($reqdmajor,$reqdminor,$major,$minor)); + } + } + my $hashid = $cdom.':'.$cnum; + my ($courseinfo,$cached) = + &Apache::lonnet::is_cached_new('courseinfo',$hashid); + if (defined($cached)) { + if (ref($courseinfo) eq 'HASH') { + if (exists($courseinfo->{'releaserequired'})) { + my ($reqdmajor,$reqdminor) = split(/\./,$courseinfo->{'releaserequired'}); + return unless (&useable_role($reqdmajor,$reqdminor,$major,$minor)); + } + } + } else { + if (ref($ids) eq 'ARRAY') { + if (grep(/^\Q$home\E$/,@{$ids})) { + if (ref($homecourses) eq 'HASH') { + if (ref($homecourses->{$hashid}) eq 'ARRAY') { + push(@{$homecourses->{$hashid}},{$key=>$value}); + } else { + $homecourses->{$hashid} = [{$key=>$value}]; + } + } + return; + } + } + my $courseinfo = &get_courseinfo_hash($cnum,$cdom,$home); + if (ref($courseinfo) eq 'HASH') { + if (exists($courseinfo->{'releaserequired'})) { + my ($reqdmajor,$reqdminor) = split(/\./,$courseinfo->{'releaserequired'}); + return unless (&useable_role($reqdmajor,$reqdminor,$major,$minor)); + } + } else { + return; + } + } + return 1; +} + +sub get_courseinfo_hash { + my ($cnum,$cdom,$home) = @_; + my %info; + eval { + local($SIG{ALRM}) = sub { die "timeout\n"; }; + local($SIG{__DIE__})='DEFAULT'; + alarm(3); + %info = &Apache::lonnet::courseiddump($cdom,'.',1,'.','.',$cnum,1,[$home],'.'); + alarm(0); + }; + if ($@) { + if ($@ eq "timeout\n") { + &logthis("WARNING courseiddump for $cnum:$cdom from $home timedout"); + } else { + &logthis("WARNING unexpected error during eval of call for courseiddump from $home"); + } + } else { + if (ref($info{$cdom.'_'.$cnum}) eq 'HASH') { + my $hashid = $cdom.':'.$cnum; + return &Apache::lonnet::do_cache_new('courseinfo',$hashid,$info{$cdom.'_'.$cnum},600); + } + } + return; +} + +sub check_homecourses { + my ($homecourses,$udom,$regexp,$count,$range,$start,$end,$major,$minor) = @_; + my ($result,%addtocache); + my $yesterday = time - 24*3600; + if (ref($homecourses) eq 'HASH') { + my (%okcourses,%courseinfo,%recent); + my $hashref = &tie_domain_hash($udom, "nohist_courseids", &GDBM_WRCREAT()); + if ($hashref) { + while (my ($key,$value) = each(%$hashref)) { + my $unesc_key = &unescape($key); + if ($unesc_key =~ /^lasttime:(\w+)$/) { + my $cid = $1; + $cid =~ s/_/:/; + if ($value > $yesterday ) { + $recent{$cid} = 1; + } + next; + } + my $items = &Apache::lonnet::thaw_unescape($value); + if (ref($items) eq 'HASH') { + my $hashid = $unesc_key; + $hashid =~ s/_/:/; + $courseinfo{$hashid} = $items; + if (ref($homecourses->{$hashid}) eq 'ARRAY') { + my ($reqdmajor,$reqdminor) = split(/\./,$items->{'releaserequired'}); + if (&useable_role($reqdmajor,$reqdminor,$major,$minor)) { + $okcourses{$hashid} = 1; + } + } + } + } + unless (&untie_domain_hash($hashref)) { + &logthis('Failed to untie tied hash for nohist_courseids.db'); + } + } else { + &logthis('Failed to tie hash for nohist_courseids.db'); + return; + } + foreach my $hashid (keys(%recent)) { + my ($result,$cached)=&Apache::lonnet::is_cached_new('courseinfo',$hashid); + unless ($cached) { + &Apache::lonnet::do_cache_new('courseinfo',$hashid,$courseinfo{$hashid},600); + } + } + foreach my $hashid (keys(%{$homecourses})) { + next if ($recent{$hashid}); + &Apache::lonnet::do_cache_new('courseinfo',$hashid,$courseinfo{$hashid},600); + } + foreach my $hashid (keys(%okcourses)) { + if (ref($homecourses->{$hashid}) eq 'ARRAY') { + foreach my $role (@{$homecourses->{$hashid}}) { + if (ref($role) eq 'HASH') { + while (my ($key,$value) = each(%{$role})) { + if ($regexp eq '.') { + $count++; + if (defined($range) && $count >= $end) { last; } + if (defined($range) && $count < $start) { next; } + $result.=$key.'='.$value.'&'; + } else { + my $unescapeKey = &unescape($key); + if (eval('$unescapeKey=~/$regexp/')) { + $count++; + if (defined($range) && $count >= $end) { last; } + if (defined($range) && $count < $start) { next; } + $result.="$key=$value&"; + } + } + } + } + } + } + } + } + return $result; +} + +sub useable_role { + my ($reqdmajor,$reqdminor,$major,$minor) = @_; + if ($reqdmajor ne '' && $reqdminor ne '') { + return if (($major eq '' && $minor eq '') || + ($major < $reqdmajor) || + (($major == $reqdmajor) && ($minor < $reqdminor))); + } + return 1; +} + +sub distro_and_arch { + return $dist.':'.$arch; } # ----------------------------------- POD (plain old documentation, CPAN style) @@ -6728,3 +7854,408 @@ linux Server/Process =cut + + +=pod + +=head1 LOG MESSAGES + +The messages below can be emitted in the lond log. This log is located +in ~httpd/perl/logs/lond.log Many log messages have HTML encapsulation +to provide coloring if examined from inside a web page. Some do not. +Where color is used, the colors are; Red for sometihhng to get excited +about and to follow up on. Yellow for something to keep an eye on to +be sure it does not get worse, Green,and Blue for informational items. + +In the discussions below, sometimes reference is made to ~httpd +when describing file locations. There isn't really an httpd +user, however there is an httpd directory that gets installed in the +place that user home directories go. On linux, this is usually +(always?) /home/httpd. + + +Some messages are colorless. These are usually (not always) +Green/Blue color level messages. + +=over 2 + +=item (Red) LocalConnection rejecting non local: ne 127.0.0.1 + +A local connection negotiation was attempted by +a host whose IP address was not 127.0.0.1. +The socket is closed and the child will exit. +lond has three ways to establish an encyrption +key with a client: + +=over 2 + +=item local + +The key is written and read from a file. +This is only valid for connections from localhost. + +=item insecure + +The key is generated by the server and +transmitted to the client. + +=item ssl (secure) + +An ssl connection is negotiated with the client, +the key is generated by the server and sent to the +client across this ssl connection before the +ssl connectionis terminated and clear text +transmission resumes. + +=back + +=item (Red) LocalConnection: caller is insane! init = and type = + +The client is local but has not sent an initialization +string that is the literal "init:local" The connection +is closed and the child exits. + +=item Red CRITICAL Can't get key file + +SSL key negotiation is being attempted but the call to +lonssl::KeyFile failed. This usually means that the +configuration file is not correctly defining or protecting +the directories/files lonCertificateDirectory or +lonnetPrivateKey + is a string that describes the reason that +the key file could not be located. + +=item (Red) CRITICAL Can't get certificates + +SSL key negotiation failed because we were not able to retrives our certificate +or the CA's certificate in the call to lonssl::CertificateFile + is the textual reason this failed. Usual reasons: + +=over 2 + +=item Apache config file for loncapa incorrect: + +one of the variables +lonCertificateDirectory, lonnetCertificateAuthority, or lonnetCertificate +undefined or incorrect + +=item Permission error: + +The directory pointed to by lonCertificateDirectory is not readable by lond + +=item Permission error: + +Files in the directory pointed to by lonCertificateDirectory are not readable by lond. + +=item Installation error: + +Either the certificate authority file or the certificate have not +been installed in lonCertificateDirectory. + +=item (Red) CRITICAL SSL Socket promotion failed: + +The promotion of the connection from plaintext to SSL failed + is the reason for the failure. There are two +system calls involved in the promotion (one of which failed), +a dup to produce +a second fd on the raw socket over which the encrypted data +will flow and IO::SOcket::SSL->new_from_fd which creates +the SSL connection on the duped fd. + +=item (Blue) WARNING client did not respond to challenge + +This occurs on an insecure (non SSL) connection negotiation request. +lond generates some number from the time, the PID and sends it to +the client. The client must respond by echoing this information back. +If the client does not do so, that's a violation of the challenge +protocols and the connection will be failed. + +=item (Red) No manager table. Nobody can manage!! + +lond has the concept of privileged hosts that +can perform remote management function such +as update the hosts.tab. The manager hosts +are described in the +~httpd/lonTabs/managers.tab file. +this message is logged if this file is missing. + + +=item (Green) Registering manager as with + +Reports the successful parse and registration +of a specific manager. + +=item Green existing host + +The manager host is already defined in the hosts.tab +the information in that table, rather than the info in the +manager table will be used to determine the manager's ip. + +=item (Red) Unable to craete + +lond has been asked to create new versions of an administrative +file (by a manager). When this is done, the new file is created +in a temp file and then renamed into place so that there are always +usable administrative files, even if the update fails. This failure +message means that the temp file could not be created. +The update is abandoned, and the old file is available for use. + +=item (Green) CopyFile from to failed + +In an update of administrative files, the copy of the existing file to a +backup file failed. The installation of the new file may still succeed, +but there will not be a back up file to rever to (this should probably +be yellow). + +=item (Green) Pushfile: backed up to + +See above, the backup of the old administrative file succeeded. + +=item (Red) Pushfile: Unable to install + +The new administrative file could not be installed. In this case, +the old administrative file is still in use. + +=item (Green) Installed new < filename>. + +The new administrative file was successfullly installed. + +=item (Red) Reinitializing lond pid= + +The lonc child process will be sent a USR2 +signal. + +=item (Red) Reinitializing self + +We've been asked to re-read our administrative files,and +are doing so. + +=item (Yellow) error:Invalid process identifier + +A reinit command was received, but the target part of the +command was not valid. It must be either +'lond' or 'lonc' but was + +=item (Green) isValideditCommand checking: Command = Key = newline = + +Checking to see if lond has been handed a valid edit +command. It is possible the edit command is not valid +in that case there are no log messages to indicate that. + +=item Result of password change for pwchange_success + +The password for was +successfully changed. + +=item Unable to open passwd to change password + +Could not rewrite the +internal password file for a user + +=item Result of password change for : + +A unix password change for was attempted +and the pipe returned + +=item LWP GET: for () + +The lightweight process fetch for a resource failed +with the local filename that should +have existed/been created was the +corresponding URI: This is emitted in several +places. + +=item Unable to move to + +From fetch_user_file_handler - the user file was replicated but could not +be mv'd to its final location. + +=item Looking for + +From user_has_session_handler - This should be a Debug call instead +it indicates lond is about to check whether the specified user has a +session active on the specified domain on the local host. + +=item Client () hanging up: + +lond has been asked to exit by its client. The and identify the +client systemand is the full exit command sent to the server. + +=item Red CRITICAL: ABNORMAL EXIT. child for server died through a crass with this error->[]. + +A lond child terminated. NOte that this termination can also occur when the +child receives the QUIT or DIE signals. is the process id of the child, + the host lond is working for, and the reason the child died +to the best of our ability to get it (I would guess that any numeric value +represents and errno value). This is immediately followed by + +=item Famous last words: Catching exception - + +Where log is some recent information about the state of the child. + +=item Red CRITICAL: TIME OUT + +Some timeout occured for server . THis is normally a timeout on an LWP +doing an HTTP::GET. + +=item child died + +The reaper caught a SIGCHILD for the lond child process +This should be modified to also display the IP of the dying child +$children{$pid} + +=item Unknown child 0 died +A child died but the wait for it returned a pid of zero which really should not +ever happen. + +=item Child - looks like we missed it's death + +When a sigchild is received, the reaper process checks all children to see if they are +alive. If children are dying quite quickly, the lack of signal queuing can mean +that a signal hearalds the death of more than one child. If so this message indicates +which other one died. is the ip of a dead child + +=item Free socket: + +The HUNTSMAN sub was called due to a SIGINT in a child process. The socket is being shutdown. +for whatever reason, is printed but in fact shutdown() is not documented +to return anything. This is followed by: + +=item Red CRITICAL: Shutting down + +Just prior to exit. + +=item Free socket: + +The HUPSMAN sub was called due to a SIGHUP. all children get killsed, and lond execs itself. +This is followed by: + +=item (Red) CRITICAL: Restarting + +lond is about to exec itself to restart. + +=item (Blue) Updating connections + +(In response to a USR2). All the children (except the one for localhost) +are about to be killed, the hosts tab reread, and Apache reloaded via apachereload. + +=item (Blue) UpdateHosts killing child for ip + +Due to USR2 as above. + +=item (Green) keeping child for ip (pid = ) + +In response to USR2 as above, the child indicated is not being restarted because +it's assumed that we'll always need a child for the localhost. + + +=item Going to check on the children + +Parent is about to check on the health of the child processes. +Note that this is in response to a USR1 sent to the parent lond. +there may be one or more of the next two messages: + +=item is dead + +A child that we have in our child hash as alive has evidently died. + +=item Child did not respond + +In the health check the child did not update/produce a pid_.txt +file when sent it's USR1 signal. That process is killed with a 9 signal, as it's +assumed to be hung in some un-fixable way. + +=item Finished checking children + +Master processs's USR1 processing is cojmplete. + +=item (Red) CRITICAL: ------- Starting ------ + +(There are more '-'s on either side). Lond has forked itself off to +form a new session and is about to start actual initialization. + +=item (Green) Attempting to start child () + +Started a new child process for . Client is IO::Socket object +connected to the child. This was as a result of a TCP/IP connection from a client. + +=item Unable to determine who caller was, getpeername returned nothing + +In child process initialization. either getpeername returned undef or +a zero sized object was returned. Processing continues, but in my opinion, +this should be cause for the child to exit. + +=item Unable to determine clientip + +In child process initialization. The peer address from getpeername was not defined. +The client address is stored as "Unavailable" and processing continues. + +=item (Yellow) INFO: Connection connection type = + +In child initialization. A good connectionw as received from . + +=over 2 + +=item + +is the name of the client from hosts.tab. + +=item + +Is the connection type which is either + +=over 2 + +=item manager + +The connection is from a manager node, not in hosts.tab + +=item client + +the connection is from a non-manager in the hosts.tab + +=item both + +The connection is from a manager in the hosts.tab. + +=back + +=back + +=item (Blue) Certificates not installed -- trying insecure auth + +One of the certificate file, key file or +certificate authority file could not be found for a client attempting +SSL connection intiation. COnnection will be attemptied in in-secure mode. +(this would be a system with an up to date lond that has not gotten a +certificate from us). + +=item (Green) Successful local authentication + +A local connection successfully negotiated the encryption key. +In this case the IDEA key is in a file (that is hopefully well protected). + +=item (Green) Successful ssl authentication with + +The client ( is the peer's name in hosts.tab), has successfully +negotiated an SSL connection with this child process. + +=item (Green) Successful insecure authentication with + + +The client has successfully negotiated an insecure connection withthe child process. + +=item (Yellow) Attempted insecure connection disallowed + +The client attempted and failed to successfully negotiate a successful insecure +connection. This can happen either because the variable londAllowInsecure is false +or undefined, or becuse the child did not successfully echo back the challenge +string. + + +=back + +=back + + +=cut