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Diff for /loncom/lond between versions 1.467.2.8 and 1.499

version 1.467.2.8, 2014/06/09 16:58:22 version 1.499, 2013/04/04 14:56:36
Line 15 Line 15
 #  #
 # LON-CAPA is distributed in the hope that it will be useful,  # LON-CAPA is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of  # but WITHOUT ANY WARRANTY; without even the implied warranty of
   
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.  # GNU General Public License for more details.
 #  #
Line 33  use strict; Line 34  use strict;
 use lib '/home/httpd/lib/perl/';  use lib '/home/httpd/lib/perl/';
 use LONCAPA;  use LONCAPA;
 use LONCAPA::Configuration;  use LONCAPA::Configuration;
   use LONCAPA::Lond;
   
 use IO::Socket;  use IO::Socket;
 use IO::File;  use IO::File;
Line 91  my %managers;   # Ip -> manager names Line 93  my %managers;   # Ip -> manager names
   
 my %perlvar; # Will have the apache conf defined perl vars.  my %perlvar; # Will have the apache conf defined perl vars.
   
   my $dist;
   
 #  #
 #   The hash below is used for command dispatching, and is therefore keyed on the request keyword.  #   The hash below is used for command dispatching, and is therefore keyed on the request keyword.
 #    Each element of the hash contains a reference to an array that contains:  #    Each element of the hash contains a reference to an array that contains:
Line 600  sub InstallFile { Line 604  sub InstallFile {
 #  #
 #   ConfigFileFromSelector: converts a configuration file selector  #   ConfigFileFromSelector: converts a configuration file selector
 #                 into a configuration file pathname.  #                 into a configuration file pathname.
 #                 Supports the following file selectors:  #                 Supports the following file selectors: 
 #                 hosts, domain, dns_hosts, dns_domain  #                 hosts, domain, dns_hosts, dns_domain  
 #  #
 #  #
 #  Parameters:  #  Parameters:
Line 614  sub ConfigFileFromSelector { Line 618  sub ConfigFileFromSelector {
     my $tablefile;      my $tablefile;
   
     my $tabledir = $perlvar{'lonTabDir'}.'/';      my $tabledir = $perlvar{'lonTabDir'}.'/';
     if (($selector eq "hosts") || ($selector eq "domain") ||      if (($selector eq "hosts") || ($selector eq "domain") || 
         ($selector eq "dns_hosts") || ($selector eq "dns_domain")) {          ($selector eq "dns_hosts") || ($selector eq "dns_domain")) {
         $tablefile =  $tabledir.$selector.'.tab';   $tablefile =  $tabledir.$selector.'.tab';
     }      }
     return $tablefile;      return $tablefile;
   
 }  }
 #  #
 #   PushFile:  Called to do an administrative push of a file.  #   PushFile:  Called to do an administrative push of a file.
Line 637  sub ConfigFileFromSelector { Line 640  sub ConfigFileFromSelector {
 #     String to send to client ("ok" or "refused" if bad file).  #     String to send to client ("ok" or "refused" if bad file).
 #  #
 sub PushFile {  sub PushFile {
     my $request = shift;      my $request = shift;    
     my ($command, $filename, $contents) = split(":", $request, 3);      my ($command, $filename, $contents) = split(":", $request, 3);
     &Debug("PushFile");      &Debug("PushFile");
           
Line 646  sub PushFile { Line 649  sub PushFile {
     #   hosts.tab  ($filename eq host).      #   hosts.tab  ($filename eq host).
     #   domain.tab ($filename eq domain).      #   domain.tab ($filename eq domain).
     #   dns_hosts.tab ($filename eq dns_host).      #   dns_hosts.tab ($filename eq dns_host).
     #   dns_domain.tab ($filename eq dns_domain).      #   dns_domain.tab ($filename eq dns_domain). 
     # Construct the destination filename or reject the request.      # Construct the destination filename or reject the request.
     #      #
     # lonManage is supposed to ensure this, however this session could be      # lonManage is supposed to ensure this, however this session could be
Line 667  sub PushFile { Line 670  sub PushFile {
   
     if($filename eq "host") {      if($filename eq "host") {
  $contents = AdjustHostContents($contents);   $contents = AdjustHostContents($contents);
     } elsif ($filename eq 'dns_host' || $filename eq 'dns_domain') {  
         if ($contents eq '') {  
             &logthis('<font color="red"> Pushfile: unable to install '  
                     .$tablefile." - no data received from push. </font>");  
             return 'error: push had no data';  
         }  
         if (&Apache::lonnet::get_host_ip($clientname)) {  
             my $clienthost = &Apache::lonnet::hostname($clientname);  
             if ($managers{$clientip} eq $clientname) {  
                 my $clientprotocol = $Apache::lonnet::protocol{$clientname};  
                 $clientprotocol = 'http' if ($clientprotocol ne 'https');  
                 my $url = '/adm/'.$filename;  
                 $url =~ s{_}{/};  
                 my $ua=new LWP::UserAgent;  
                 $ua->timeout(60);  
                 my $request=new HTTP::Request('GET',"$clientprotocol://$clienthost$url");  
                 my $response=$ua->request($request);  
                 if ($response->is_error()) {  
                     &logthis('<font color="red"> Pushfile: unable to install '  
                             .$tablefile." - error attempting to pull data. </font>");  
                     return 'error: pull failed';  
                 } else {  
                     my $result = $response->content;  
                     chomp($result);  
                     unless ($result eq $contents) {  
                         &logthis('<font color="red"> Pushfile: unable to install '  
                                 .$tablefile." - pushed data and pulled data differ. </font>");  
                         my $pushleng = length($contents);  
                         my $pullleng = length($result);  
                         if ($pushleng != $pullleng) {  
                             return "error: $pushleng vs $pullleng bytes";  
                         } else {  
                             return "error: mismatch push and pull";  
                         }  
                     }  
                 }  
             }  
         }  
     }      }
   
     #  Install the new file:      #  Install the new file:
Line 715  sub PushFile { Line 680  sub PushFile {
  .$tablefile." $! </font>");   .$tablefile." $! </font>");
  return "error:$!";   return "error:$!";
     } else {      } else {
         &logthis('<font color="green"> Installed new '.$tablefile   &logthis('<font color="green"> Installed new '.$tablefile
                  ." - transaction by: $clientname ($clientip)</font>");   ." - transaction by: $clientname ($clientip)</font>");
         my $adminmail = $perlvar{'lonAdmEMail'};          my $adminmail = $perlvar{'lonAdmEMail'};
         my $admindom = &Apache::lonnet::host_domain($perlvar{'lonHostID'});          my $admindom = &Apache::lonnet::host_domain($perlvar{'lonHostID'});
         if ($admindom ne '') {          if ($admindom ne '') {
Line 1679  sub ls3_handler { Line 1644  sub ls3_handler {
 }  }
 &register_handler("ls3", \&ls3_handler, 0, 1, 0);  &register_handler("ls3", \&ls3_handler, 0, 1, 0);
   
   sub read_lonnet_global {
       my ($cmd,$tail,$client) = @_;
       my $userinput = "$cmd:$tail";
       my $requested = &Apache::lonnet::thaw_unescape($tail);
       my $result;
       my %packagevars = (
                           spareid => \%Apache::lonnet::spareid,
                           perlvar => \%Apache::lonnet::perlvar,
                         );
       my %limit_to = (
                       perlvar => {
                                    lonOtherAuthen => 1,
                                    lonBalancer    => 1,
                                    lonVersion     => 1,
                                    lonSysEMail    => 1,
                                    lonHostID      => 1,
                                    lonRole        => 1,
                                    lonDefDomain   => 1,
                                    lonLoadLim     => 1,
                                    lonUserLoadLim => 1,
                                  }
                     );
       if (ref($requested) eq 'HASH') {
           foreach my $what (keys(%{$requested})) {
               my $response;
               my $items = {};
               if (exists($packagevars{$what})) {
                   if (ref($limit_to{$what}) eq 'HASH') {
                       foreach my $varname (keys(%{$packagevars{$what}})) {
                           if ($limit_to{$what}{$varname}) {
                               $items->{$varname} = $packagevars{$what}{$varname};
                           }
                       }
                   } else {
                       $items = $packagevars{$what};
                   }
                   if ($what eq 'perlvar') {
                       if (!exists($packagevars{$what}{'lonBalancer'})) {
                           if ($dist =~ /^(centos|rhes|fedora|scientific)/) {
                               my $othervarref=LONCAPA::Configuration::read_conf('httpd.conf');
                               if (ref($othervarref) eq 'HASH') {
                                   $items->{'lonBalancer'} = $othervarref->{'lonBalancer'};
                               }
                           }
                       }
                   }
                   $response = &Apache::lonnet::freeze_escape($items);
               }
               $result .= &escape($what).'='.$response.'&';
           }
       }
       $result =~ s/\&$//;
       &Reply($client,\$result,$userinput);
       return 1;
   }
   &register_handler("readlonnetglobal", \&read_lonnet_global, 0, 1, 0);
   
   sub server_devalidatecache_handler {
       my ($cmd,$tail,$client) = @_;
       my $userinput = "$cmd:$tail";
       my ($name,$id) = map { &unescape($_); } split(/:/,$tail);
       &Apache::lonnet::devalidate_cache_new($name,$id);
       my $result = 'ok';
       &Reply($client,\$result,$userinput);
       return 1;
   }
   &register_handler("devalidatecache", \&server_devalidatecache_handler, 0, 1, 0);
   
 sub server_timezone_handler {  sub server_timezone_handler {
     my ($cmd,$tail,$client) = @_;      my ($cmd,$tail,$client) = @_;
     my $userinput = "$cmd:$tail";      my $userinput = "$cmd:$tail";
Line 1874  sub authenticate_handler { Line 1907  sub authenticate_handler {
                 if (ref($hostedsession) eq 'HASH') {                  if (ref($hostedsession) eq 'HASH') {
                     $hosted = $hostedsession->{'hosted'};                      $hosted = $hostedsession->{'hosted'};
                 }                  }
                 my $loncaparev = $clientversion;  
                 if ($loncaparev eq '') {  
                     $loncaparev = $Apache::lonnet::loncaparevs{$clientname};  
                 }  
                 $canhost = &Apache::lonnet::can_host_session($udom,$clientname,                  $canhost = &Apache::lonnet::can_host_session($udom,$clientname,
                                                              $loncaparev,                                                               $clientversion,
                                                              $remote,$hosted);                                                               $remote,$hosted);
             }              }
         }          }
Line 2041  sub add_user_handler { Line 2070  sub add_user_handler {
     ."makeuser";      ."makeuser";
     }      }
     unless ($fperror) {      unless ($fperror) {
  my $result=&make_passwd_file($uname, $umode,$npass, $passfilename);   my $result=&make_passwd_file($uname,$udom,$umode,$npass, $passfilename);
  &Reply($client,\$result, $userinput);     #BUGBUG - could be fail   &Reply($client,\$result, $userinput);     #BUGBUG - could be fail
     } else {      } else {
  &Failure($client, \$fperror, $userinput);   &Failure($client, \$fperror, $userinput);
Line 2116  sub change_authentication_handler { Line 2145  sub change_authentication_handler {
     &Failure($client, \$result);      &Failure($client, \$result);
  }   }
     } else {      } else {
  my $result=&make_passwd_file($uname, $umode,$npass,$passfilename);   my $result=&make_passwd_file($uname,$udom,$umode,$npass,$passfilename);
  #   #
  #  If the current auth mode is internal, and the old auth mode was   #  If the current auth mode is internal, and the old auth mode was
  #  unix, or krb*,  and the user is an author for this domain,   #  unix, or krb*,  and the user is an author for this domain,
Line 2341  sub fetch_user_file_handler { Line 2370  sub fetch_user_file_handler {
  unlink($transname);   unlink($transname);
  &Failure($client, "failed\n", $userinput);   &Failure($client, "failed\n", $userinput);
     } else {      } else {
                   if ($fname =~ /^default.+\.(page|sequence)$/) {
                       my ($major,$minor) = split(/\./,$clientversion);
                       if (($major < 2) || ($major == 2 && $minor < 11)) {
                           my $now = time;
                           &Apache::lonnet::do_cache_new('crschange',$udom.'_'.$uname,$now,600);
                           my $key = &escape('internal.contentchange');
                           my $what = "$key=$now";
                           my $hashref = &tie_user_hash($udom,$uname,'environment',
                                                        &GDBM_WRCREAT(),"P",$what);
                           if ($hashref) {
                               $hashref->{$key}=$now;
                               if (!&untie_user_hash($hashref)) {
                                   &logthis("error: ".($!+0)." untie (GDBM) failed ".
                                            "when updating internal.contentchange");
                               }
                           }
                       }
                   }
  &Reply($client, "ok\n", $userinput);   &Reply($client, "ok\n", $userinput);
     }      }
  }      }   
Line 3147  sub get_profile_keys { Line 3194  sub get_profile_keys {
 sub dump_profile_database {  sub dump_profile_database {
     my ($cmd, $tail, $client) = @_;      my ($cmd, $tail, $client) = @_;
   
       my $res = LONCAPA::Lond::dump_profile_database($tail);
   
       if ($res =~ /^error:/) {
           Failure($client, \$res, "$cmd:$tail");
       } else {
           Reply($client, \$res, "$cmd:$tail");
       }
   
       return 1;  
   
       #TODO remove 
     my $userinput = "$cmd:$tail";      my $userinput = "$cmd:$tail";
         
     my ($udom,$uname,$namespace) = split(/:/,$tail);      my ($udom,$uname,$namespace) = split(/:/,$tail);
Line 3213  sub dump_profile_database { Line 3271  sub dump_profile_database {
 #                                             that is matched against  #                                             that is matched against
 #                                             database keywords to do  #                                             database keywords to do
 #                                             selective dumps.  #                                             selective dumps.
   #                               range       - optional range of entries
   #                                             e.g., 10-20 would return the
   #                                             10th to 19th items, etc.  
 #   $client                   - Channel open on the client.  #   $client                   - Channel open on the client.
 # Returns:  # Returns:
 #    1    - Continue processing.  #    1    - Continue processing.
Line 3222  sub dump_profile_database { Line 3283  sub dump_profile_database {
 sub dump_with_regexp {  sub dump_with_regexp {
     my ($cmd, $tail, $client) = @_;      my ($cmd, $tail, $client) = @_;
   
       my $res = LONCAPA::Lond::dump_with_regexp($tail, $clientversion);
     my $userinput = "$cmd:$tail";      
       if ($res =~ /^error:/) {
     my ($udom,$uname,$namespace,$regexp,$range,$extra)=split(/:/,$tail);          Failure($client, \$res, "$cmd:$tail");
     if (defined($regexp)) {  
  $regexp=&unescape($regexp);  
     } else {  
  $regexp='.';  
     }  
     my ($start,$end);  
     if (defined($range)) {  
  if ($range =~/^(\d+)\-(\d+)$/) {  
     ($start,$end) = ($1,$2);  
  } elsif ($range =~/^(\d+)$/) {  
     ($start,$end) = (0,$1);  
  } else {  
     undef($range);  
  }  
     }  
     my $hashref = &tie_user_hash($udom, $uname, $namespace,  
  &GDBM_READER());  
     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 >= $end)   { last; }  
  if (defined($range) && $count <  $start) { next; }  
  $qresult.=$key.'='.$value.'&';  
     } else {  
  my $unescapeKey = &unescape($key);  
  if (eval('$unescapeKey=~/$regexp/')) {  
     $count++;  
     if (defined($range) && $count >= $end)   { last; }  
     if (defined($range) && $count <  $start) { next; }  
     $qresult.="$key=$value&";  
  }  
     }  
  }  
  if (&untie_user_hash($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, $userinput);  
  } else {  
     &Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ".  
      "while attempting dump\n", $userinput);  
  }  
     } else {      } else {
  &Failure($client, "error: ".($!+0)." tie(GDBM) Failed ".          Reply($client, \$res, "$cmd:$tail");
  "while attempting dump\n", $userinput);  
     }      }
   
     return 1;      return 1;
Line 3887  sub put_course_id_hash_handler { Line 3867  sub put_course_id_hash_handler {
 #   a reply is written to $client.  #   a reply is written to $client.
 sub dump_course_id_handler {  sub dump_course_id_handler {
     my ($cmd, $tail, $client) = @_;      my ($cmd, $tail, $client) = @_;
   
       my $res = LONCAPA::Lond::dump_course_id_handler($tail);
       if ($res =~ /^error:/) {
           Failure($client, \$res, "$cmd:$tail");
       } else {
           Reply($client, \$res, "$cmd:$tail");
       }
   
       return 1;  
   
       #TODO remove
     my $userinput = "$cmd:$tail";      my $userinput = "$cmd:$tail";
   
     my ($udom,$since,$description,$instcodefilter,$ownerfilter,$coursefilter,      my ($udom,$since,$description,$instcodefilter,$ownerfilter,$coursefilter,
Line 5023  sub validate_instcode_handler { Line 5014  sub validate_instcode_handler {
     my ($dom,$instcode,$owner) = split(/:/, $tail);      my ($dom,$instcode,$owner) = split(/:/, $tail);
     $instcode = &unescape($instcode);      $instcode = &unescape($instcode);
     $owner = &unescape($owner);      $owner = &unescape($owner);
     my ($outcome,$description) =       my ($outcome,$description,$credits) = 
         &localenroll::validate_instcode($dom,$instcode,$owner);          &localenroll::validate_instcode($dom,$instcode,$owner);
     my $result = &escape($outcome).'&'.&escape($description);      my $result = &escape($outcome).'&'.&escape($description).'&'.
                    &escape($credits);
     &Reply($client, \$result, $userinput);      &Reply($client, \$result, $userinput);
   
     return 1;      return 1;
Line 5079  sub validate_course_owner_handler { Line 5071  sub validate_course_owner_handler {
     my ($cmd, $tail, $client)  = @_;      my ($cmd, $tail, $client)  = @_;
     my $userinput = "$cmd:$tail";      my $userinput = "$cmd:$tail";
     my ($inst_course_id, $owner, $cdom, $coowners) = split(/:/, $tail);      my ($inst_course_id, $owner, $cdom, $coowners) = split(/:/, $tail);
       
     $owner = &unescape($owner);      $owner = &unescape($owner);
     $coowners = &unescape($coowners);      $coowners = &unescape($coowners);
     my $outcome = &localenroll::new_course($inst_course_id,$owner,$cdom,$coowners);      my $outcome = &localenroll::new_course($inst_course_id,$owner,$cdom,$coowners);
Line 6070  if (-e $pidfile) { Line 6062  if (-e $pidfile) {
 $server = IO::Socket::INET->new(LocalPort => $perlvar{'londPort'},  $server = IO::Socket::INET->new(LocalPort => $perlvar{'londPort'},
                                 Type      => SOCK_STREAM,                                  Type      => SOCK_STREAM,
                                 Proto     => 'tcp',                                  Proto     => 'tcp',
                                 ReuseAddr => 1,                                  ReuseAddr     => 1,
                                 Listen    => 10 )                                  Listen    => 10 )
   or die "making socket: $@\n";    or die "making socket: $@\n";
   
Line 6133  sub HUPSMAN {                      # sig Line 6125  sub HUPSMAN {                      # sig
 #  a setuid perl script that can be root for us to do this job.  #  a setuid perl script that can be root for us to do this job.
 #  #
 sub ReloadApache {  sub ReloadApache {
   # --------------------------- Handle case of another apachereload process (locking)
     if (&LONCAPA::try_to_lock('/tmp/lock_apachereload')) {      if (&LONCAPA::try_to_lock('/tmp/lock_apachereload')) {
         my $execdir = $perlvar{'lonDaemons'};          my $execdir = $perlvar{'lonDaemons'};
         my $script  = $execdir."/apachereload";          my $script  = $execdir."/apachereload";
Line 6249  sub Debug { Line 6242  sub Debug {
 #     reply   - Text to send to client.  #     reply   - Text to send to client.
 #     request - Original request from client.  #     request - Original request from client.
 #  #
   #NOTE $reply must be terminated by exactly *one* \n. If $reply is a reference
   #this is done automatically ($$reply must not contain any \n in this case). 
   #If $reply is a string the caller has to ensure this.
 sub Reply {  sub Reply {
     my ($fd, $reply, $request) = @_;      my ($fd, $reply, $request) = @_;
     if (ref($reply)) {      if (ref($reply)) {
Line 6402  $SIG{USR2} = \&UpdateHosts; Line 6398  $SIG{USR2} = \&UpdateHosts;
 &Apache::lonnet::load_hosts_tab();  &Apache::lonnet::load_hosts_tab();
 my %iphost = &Apache::lonnet::get_iphost(1);  my %iphost = &Apache::lonnet::get_iphost(1);
   
 my $dist=`$perlvar{'lonDaemons'}/distprobe`;  $dist=`$perlvar{'lonDaemons'}/distprobe`;
   
 my $arch = `uname -i`;  my $arch = `uname -i`;
 chomp($arch);  chomp($arch);
Line 6477  sub make_new_child { Line 6473  sub make_new_child {
                                 #don't get intercepted                                  #don't get intercepted
         $SIG{USR1}= \&logstatus;          $SIG{USR1}= \&logstatus;
         $SIG{ALRM}= \&timeout;          $SIG{ALRM}= \&timeout;
    #
         #   # Block sigpipe as it gets thrownon socket disconnect and we want to 
         # Block sigpipe as it gets thrownon socket disconnect and we want to   # deal with that as a read faiure instead.
         # deal with that as a read faiure instead.   #
         #   my $blockset = POSIX::SigSet->new(SIGPIPE);
         my $blockset = POSIX::SigSet->new(SIGPIPE);   sigprocmask(SIG_BLOCK, $blockset);
         sigprocmask(SIG_BLOCK, $blockset);  
   
         $lastlog='Forked ';          $lastlog='Forked ';
         $status='Forked';          $status='Forked';
Line 6496  sub make_new_child { Line 6491  sub make_new_child {
 #---------------------------------------------------- kerberos 5 initialization  #---------------------------------------------------- kerberos 5 initialization
         &Authen::Krb5::init_context();          &Authen::Krb5::init_context();
  unless (($dist eq 'fedora5') || ($dist eq 'fedora4') ||     unless (($dist eq 'fedora5') || ($dist eq 'fedora4') ||  
  ($dist eq 'fedora6') || ($dist eq 'suse9.3')) {   ($dist eq 'fedora6') || ($dist eq 'suse9.3') ||
                   ($dist eq 'suse12.2') || ($dist eq 'suse12.3')) {
     &Authen::Krb5::init_ets();      &Authen::Krb5::init_ets();
  }   }
   
Line 6541  sub make_new_child { Line 6537  sub make_new_child {
  #   #
  #  If the remote is attempting a local init... give that a try:   #  If the remote is attempting a local init... give that a try:
  #   #
           logthis("remotereq: $remotereq");
  (my $i, my $inittype, $clientversion) = split(/:/, $remotereq);   (my $i, my $inittype, $clientversion) = split(/:/, $remotereq);
           # For LON-CAPA 2.9, the  client session will have sent its LON-CAPA
           # version when initiating the connection. For LON-CAPA 2.8 and older,
           # the version is retrieved from the global %loncaparevs in lonnet.pm.            
           # $clientversion contains path to keyfile if $inittype eq 'local'
           # it's overridden below in this case
           $clientversion ||= $Apache::lonnet::loncaparevs{$clientname};
   
  # If the connection type is ssl, but I didn't get my   # If the connection type is ssl, but I didn't get my
  # certificate files yet, then I'll drop  back to    # certificate files yet, then I'll drop  back to 
Line 6685  sub is_author { Line 6688  sub is_author {
   
     #  Author role should show up as a key /domain/_au      #  Author role should show up as a key /domain/_au
   
     my $key    = "/$domain/_au";  
     my $value;      my $value;
     if (defined($hashref)) {      if ($hashref) {
  $value = $hashref->{$key};  
     }  
   
     if(defined($value)) {   my $key    = "/$domain/_au";
  &Debug("$user @ $domain is an author");   if (defined($hashref)) {
       $value = $hashref->{$key};
       if(!untie_user_hash($hashref)) {
    return 'error: ' .  ($!+0)." untie (GDBM) Failed";
       }
    }
   
    if(defined($value)) {
       &Debug("$user @ $domain is an author");
    }
       } else {
    return 'error: '.($!+0)." tie (GDBM) Failed";
     }      }
   
     return defined($value);      return defined($value);
 }  }
 #  #
 #   Checks to see if the input roleput request was to set  #   Checks to see if the input roleput request was to set
 # an author role.  If so, invokes the lchtmldir script to set  # an author role.  If so, creates construction space 
 # up a correct public_html   
 # Parameters:  # Parameters:
 #    request   - The request sent to the rolesput subchunk.  #    request   - The request sent to the rolesput subchunk.
 #                We're looking for  /domain/_au  #                We're looking for  /domain/_au
Line 6710  sub is_author { Line 6720  sub is_author {
 #  #
 sub manage_permissions {  sub manage_permissions {
     my ($request, $domain, $user, $authtype) = @_;      my ($request, $domain, $user, $authtype) = @_;
   
     &Debug("manage_permissions: $request $domain $user $authtype");  
   
     # See if the request is of the form /$domain/_au      # See if the request is of the form /$domain/_au
     if($request =~ /^(\/\Q$domain\E\/_au)$/) { # It's an author rolesput...      if($request =~ /^(\/\Q$domain\E\/_au)$/) { # It's an author rolesput...
  my $execdir = $perlvar{'lonDaemons'};          my $path=$perlvar{'lonDocRoot'}."/priv/$domain";
  my $userhome= "/home/$user" ;          unless (-e $path) {        
  &logthis("system $execdir/lchtmldir $userhome $user $authtype");             mkdir($path);
  &Debug("Setting homedir permissions for $userhome");          }
  system("$execdir/lchtmldir $userhome $user $authtype");          unless (-e $path.'/'.$user) {
              mkdir($path.'/'.$user);
           }
     }      }
 }  }
   
Line 7252  sub change_unix_password { Line 7261  sub change_unix_password {
   
   
 sub make_passwd_file {  sub make_passwd_file {
     my ($uname, $umode,$npass,$passfilename)=@_;      my ($uname,$udom,$umode,$npass,$passfilename)=@_;
     my $result="ok";      my $result="ok";
     if ($umode eq 'krb4' or $umode eq 'krb5') {      if ($umode eq 'krb4' or $umode eq 'krb5') {
  {   {
Line 7293  sub make_passwd_file { Line 7302  sub make_passwd_file {
     #      #
     my $uid = getpwnam($uname);      my $uid = getpwnam($uname);
     if((defined $uid) && ($uid == 0)) {      if((defined $uid) && ($uid == 0)) {
  &logthis(">>>Attempted to create privilged account blocked");   &logthis(">>>Attempt to create privileged account blocked");
  return "no_priv_account_error\n";   return "no_priv_account_error\n";
     }      }
   
Line 7305  sub make_passwd_file { Line 7314  sub make_passwd_file {
  &Debug("user  = ".$uname.", Password =". $npass);   &Debug("user  = ".$uname.", Password =". $npass);
  my $se = IO::File->new("|$execpath > $perlvar{'lonDaemons'}/logs/lcuseradd.log");   my $se = IO::File->new("|$execpath > $perlvar{'lonDaemons'}/logs/lcuseradd.log");
  print $se "$uname\n";   print $se "$uname\n";
                   print $se "$udom\n";
  print $se "$npass\n";   print $se "$npass\n";
  print $se "$npass\n";   print $se "$npass\n";
  print $se "$lc_error_file\n"; # Status -> unique file.   print $se "$lc_error_file\n"; # Status -> unique file.
Line 7398  sub get_usersession_config { Line 7408  sub get_usersession_config {
     return;      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("<font color='blue'>WARNING courseiddump for $cnum:$cdom from $home timedout</font>");  
         } else {  
             &logthis("<font color='yellow'>WARNING unexpected error during eval of call for courseiddump from $home</font>");  
         }  
     } else {  
         if (ref($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 {  sub distro_and_arch {
     return $dist.':'.$arch;      return $dist.':'.$arch;
Line 7771  Place in B<logs/lond.log> Line 7622  Place in B<logs/lond.log>
   
 stores hash in namespace  stores hash in namespace
   
 =item rolesputy  =item rolesput
   
 put a role into a user's environment  put a role into a user's environment
   
Line 7888  Authen::Krb5 Line 7739  Authen::Krb5
   
 =head1 COREQUISITES  =head1 COREQUISITES
   
   none
   
 =head1 OSNAMES  =head1 OSNAMES
   
 linux  linux
Line 7975  or the CA's certificate in the call to l Line 7828  or the CA's certificate in the call to l
 <error> is the textual reason this failed.  Usual reasons:  <error> is the textual reason this failed.  Usual reasons:
   
 =over 2  =over 2
          
 =item Apache config file for loncapa  incorrect:  =item Apache config file for loncapa  incorrect:
    
 one of the variables   one of the variables 
 lonCertificateDirectory, lonnetCertificateAuthority, or lonnetCertificate  lonCertificateDirectory, lonnetCertificateAuthority, or lonnetCertificate
 undefined or incorrect  undefined or incorrect
Line 8096  Could not rewrite the Line 7949  Could not rewrite the
 internal password file for a user  internal password file for a user
   
 =item Result of password change for <user> : <result>  =item Result of password change for <user> : <result>
                                                                        
 A unix password change for <user> was attempted   A unix password change for <user> was attempted 
 and the pipe returned <result>    and the pipe returned <result>  
   
Line 8125  lond has been asked to exit by its clien Line 7978  lond has been asked to exit by its clien
 client systemand <input> is the full exit command sent to the server.  client systemand <input> is the full exit command sent to the server.
   
 =item Red CRITICAL: ABNORMAL EXIT. child <pid> for server <hostname> died through a crass with this error->[<message>].  =item Red CRITICAL: ABNORMAL EXIT. child <pid> for server <hostname> died through a crass with this error->[<message>].
                                                    
 A lond child terminated.  NOte that this termination can also occur when the  A lond child terminated.  NOte that this termination can also occur when the
 child receives the QUIT or DIE signals.  <pid> is the process id of the child,  child receives the QUIT or DIE signals.  <pid> is the process id of the child,
 <hostname> the host lond is working for, and <message> the reason the child died  <hostname> the host lond is working for, and <message> the reason the child died
Line 8209  file when sent it's USR1 signal.  That p Line 8062  file when sent it's USR1 signal.  That p
 assumed to be hung in some un-fixable way.  assumed to be hung in some un-fixable way.
   
 =item Finished checking children                     =item Finished checking children                   
    
 Master processs's USR1 processing is cojmplete.  Master processs's USR1 processing is cojmplete.
   
 =item (Red) CRITICAL: ------- Starting ------              =item (Red) CRITICAL: ------- Starting ------            
Line 8223  Started a new child process for <client> Line 8076  Started a new child process for <client>
 connected to the child.  This was as a result of a TCP/IP connection from a client.  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  =item Unable to determine who caller was, getpeername returned nothing
                                                     
 In child process initialization.  either getpeername returned undef or  In child process initialization.  either getpeername returned undef or
 a zero sized object was returned.  Processing continues, but in my opinion,  a zero sized object was returned.  Processing continues, but in my opinion,
 this should be cause for the child to exit.  this should be cause for the child to exit.
Line 8234  In child process initialization.  The pe Line 8087  In child process initialization.  The pe
 The client address is stored as "Unavailable" and processing continues.  The client address is stored as "Unavailable" and processing continues.
   
 =item (Yellow) INFO: Connection <ip> <name> connection type = <type>  =item (Yellow) INFO: Connection <ip> <name> connection type = <type>
                                                     
 In child initialization.  A good connectionw as received from <ip>.  In child initialization.  A good connectionw as received from <ip>.
   
 =over 2  =over 2
Line 8284  The client (<client> is the peer's name Line 8137  The client (<client> is the peer's name
 negotiated an SSL connection with this child process.  negotiated an SSL connection with this child process.
   
 =item (Green) Successful insecure authentication with <client>  =item (Green) Successful insecure authentication with <client>
                                                      
   
 The client has successfully negotiated an  insecure connection withthe child process.  The client has successfully negotiated an  insecure connection withthe child process.
   
Removed from v.1.467.2.8  
changed lines
  Added in v.1.499

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