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Diff for /loncom/lonnet/perl/lonnet.pm between versions 1.963 and 1.973

version 1.963, 2008/07/17 21:22:51 version 1.973, 2008/11/28 12:09:16
Line 27 Line 27
 #  #
 ###  ###
   
   =pod
   
   =head1 NAME
   
   Apache::lonnet.pm
   
   =head1 SYNOPSIS
   
   This file is an interface to the lonc processes of
   the LON-CAPA network as well as set of elaborated functions for handling information
   necessary for navigating through a given cluster of LON-CAPA machines within a
   domain. There are over 40 specialized functions in this module which handle the
   reading and transmission of metadata, user information (ids, names, environments, roles,
   logs), file information (storage, reading, directories, extensions, replication, embedded
   styles and descriptors), educational resources (course descriptions, section names and
   numbers), url hashing (to assign roles on a url basis), and translating abbreviated symbols to
   and from more descriptive phrases or explanations.
   
   This is part of the LearningOnline Network with CAPA project
   described at http://www.lon-capa.org.
   
   =head1 Package Variables
   
   These are largely undocumented, so if you decipher one please note it here.
   
   =over 4
   
   =item $processmarker
   
   Contains the time this process was started and this servers host id.
   
   =item $dumpcount
   
   Counts the number of times a message log flush has been attempted (regardless
   of success) by this process.  Used as part of the filename when messages are
   delayed.
   
   =back
   
   =cut
   
 package Apache::lonnet;  package Apache::lonnet;
   
 use strict;  use strict;
Line 34  use LWP::UserAgent(); Line 75  use LWP::UserAgent();
 use HTTP::Date;  use HTTP::Date;
 # use Date::Parse;  # use Date::Parse;
 use vars qw(%perlvar %spareid %pr %prp $memcache %packagetab $tmpdir  use vars qw(%perlvar %spareid %pr %prp $memcache %packagetab $tmpdir
             $_64bit %env);              $_64bit %env %protocol);
   
 my (%badServerCache, $memcache, %courselogs, %accesshash, %domainrolehash,  my (%badServerCache, $memcache, %courselogs, %accesshash, %domainrolehash,
     %userrolehash, $processmarker, $dumpcount, %coursedombuf,      %userrolehash, $processmarker, $dumpcount, %coursedombuf,
Line 61  require Exporter; Line 102  require Exporter;
 our @ISA = qw (Exporter);  our @ISA = qw (Exporter);
 our @EXPORT = qw(%env);  our @EXPORT = qw(%env);
   
 =pod  
   
 =head1 Package Variables  
   
 These are largely undocumented, so if you decipher one please note it here.  
   
 =over 4  
   
 =item $processmarker  
   
 Contains the time this process was started and this servers host id.  
   
 =item $dumpcount  
   
 Counts the number of times a message log flush has been attempted (regardless  
 of success) by this process.  Used as part of the filename when messages are  
 delayed.  
   
 =back  
   
 =cut  
   
   
 # --------------------------------------------------------------------- Logging  # --------------------------------------------------------------------- Logging
 {  {
Line 643  sub spareserver { Line 662  sub spareserver {
     }      }
   
     if (!$want_server_name) {      if (!$want_server_name) {
  $spare_server="http://".&hostname($spare_server);          my $protocol = 'http';
           if ($protocol{$spare_server} eq 'https') {
               $protocol = $protocol{$spare_server};
           }
    $spare_server = $protocol.'://'.&hostname($spare_server);
     }      }
     return $spare_server;      return $spare_server;
 }  }
Line 2596  sub get_course_adv_roles { Line 2619  sub get_course_adv_roles {
             }              }
         } else {          } else {
             my $key=&plaintext($role);              my $key=&plaintext($role);
             if ($section) { $key.=' (Section '.$section.')'; }              if ($section) { $key.=' ('.&Apache::lonlocal::mt('Section [_1]',$section).')'; }
             if ($returnhash{$key}) {              if ($returnhash{$key}) {
         $returnhash{$key}.=','.$username.':'.$domain;          $returnhash{$key}.=','.$username.':'.$domain;
             } else {              } else {
Line 3561  sub privileged { Line 3584  sub privileged {
   
 sub rolesinit {  sub rolesinit {
     my ($domain,$username,$authhost)=@_;      my ($domain,$username,$authhost)=@_;
       my %userroles;
     my $rolesdump=reply("dump:$domain:$username:roles",$authhost);      my $rolesdump=reply("dump:$domain:$username:roles",$authhost);
     if (($rolesdump eq 'con_lost') || ($rolesdump eq '')) { return ''; }      if (($rolesdump eq 'con_lost') || ($rolesdump eq '')) { return \%userroles; }
     my %allroles=();      my %allroles=();
     my %allgroups=();         my %allgroups=();   
     my $now=time;      my $now=time;
     my %userroles = ('user.login.time' => $now);      %userroles = ('user.login.time' => $now);
     my $group_privs;      my $group_privs;
   
     if ($rolesdump ne '') {      if ($rolesdump ne '') {
Line 4891  sub log_query { Line 4915  sub log_query {
   
 sub update_portfolio_table {  sub update_portfolio_table {
     my ($uname,$udom,$file_name,$query,$group,$action) = @_;      my ($uname,$udom,$file_name,$query,$group,$action) = @_;
       if ($group ne '') {
           $file_name =~s /^\Q$group\E//;
       }
     my $homeserver = &homeserver($uname,$udom);      my $homeserver = &homeserver($uname,$udom);
     my $queryid=      my $queryid=
         &reply("querysend:".$query.':'.&escape($uname.':'.$udom.':'.$group).          &reply("querysend:".$query.':'.&escape($uname.':'.$udom.':'.$group).
Line 5879  sub assigncustomrole { Line 5906  sub assigncustomrole {
 sub revokerole {  sub revokerole {
     my ($udom,$uname,$url,$role,$deleteflag,$selfenroll,$context)=@_;      my ($udom,$uname,$url,$role,$deleteflag,$selfenroll,$context)=@_;
     my $now=time;      my $now=time;
     return &assignrole($udom,$uname,$url,$role,$now,$deleteflag,$selfenroll,$context);      return &assignrole($udom,$uname,$url,$role,$now,undef,$deleteflag,$selfenroll,$context);
 }  }
   
 # ---------------------------------------------------------- Revoke Custom Role  # ---------------------------------------------------------- Revoke Custom Role
Line 6144  sub modify_access_controls { Line 6171  sub modify_access_controls {
                 }                  }
             }              }
         }          }
           my ($group);
           if (&is_course($domain,$user)) {
               ($group,my $file) = split(/\//,$file_name,2);
           }
         $deloutcome = &del('file_permissions',\@deletions,$domain,$user);          $deloutcome = &del('file_permissions',\@deletions,$domain,$user);
         $new_values{$file_name."\0".'accesscontrol'} = \%new_control;          $new_values{$file_name."\0".'accesscontrol'} = \%new_control;
         $outcome = &put('file_permissions',\%new_values,$domain,$user);          $outcome = &put('file_permissions',\%new_values,$domain,$user);
         #  remove lock          #  remove lock
         my @del_lock = ($file_name."\0".'locked_access_records');          my @del_lock = ($file_name."\0".'locked_access_records');
         my $dellockoutcome = &del('file_permissions',\@del_lock,$domain,$user);          my $dellockoutcome = &del('file_permissions',\@del_lock,$domain,$user);
         my ($file,$group);  
         if (&is_course($domain,$user)) {  
             ($group,$file) = split(/\//,$file_name,2);  
         } else {  
             $file = $file_name;  
         }  
         my $sqlresult =          my $sqlresult =
             &update_portfolio_table($user,$domain,$file,'portfolio_access',              &update_portfolio_table($user,$domain,$file_name,'portfolio_access',
                                     $group);                                      $group);
     } else {      } else {
         $outcome = "error: could not obtain lockfile\n";            $outcome = "error: could not obtain lockfile\n";  
Line 8535  sub get_dns { Line 8560  sub get_dns {
     next if ($configline =~ /^(\#|\s*$ )/x);      next if ($configline =~ /^(\#|\s*$ )/x);
     next if ($configline =~ /^\^/);      next if ($configline =~ /^\^/);
     chomp($configline);      chomp($configline);
     my ($id,$domain,$role,$name)=split(/:/,$configline);      my ($id,$domain,$role,$name,$protocol)=split(/:/,$configline);
     $name=~s/\s//g;      $name=~s/\s//g;
     if ($id && $domain && $role && $name) {      if ($id && $domain && $role && $name) {
  $hostname{$id}=$name;   $hostname{$id}=$name;
  push(@{$name_to_host{$name}}, $id);   push(@{$name_to_host{$name}}, $id);
  $hostdom{$id}=$domain;   $hostdom{$id}=$domain;
  if ($role eq 'library') { $libserv{$id}=$name; }   if ($role eq 'library') { $libserv{$id}=$name; }
                   if (defined($protocol)) {
                       if ($protocol eq 'https') {
                           $protocol{$id} = $protocol;
                       } else {
                           $protocol{$id} = 'http'; 
                       }
                   } else {
                       $protocol{$id} = 'http';
                   }
     }      }
  }   }
     }      }
Line 8984  when the connection is brought back up Line 9018  when the connection is brought back up
 =item * B<con_failed>: unable to contact remote host and unable to save message  =item * B<con_failed>: unable to contact remote host and unable to save message
 for later delivery  for later delivery
   
 =item * B<error:>: an error a occured, a description of the error follows the :  =item * B<error:>: an error a occurred, a description of the error follows the :
   
 =item * B<no_such_host>: unable to fund a host associated with the user/domain  =item * B<no_such_host>: unable to fund a host associated with the user/domain
 that was requested  that was requested
Line 9175  Inputs: Line 9209  Inputs:
   
 =item B<$uname> Student's loncapa login name  =item B<$uname> Student's loncapa login name
   
 =item B<$uid> Student's id/student number  =item B<$uid> Student/Employee ID
   
 =item B<$umode> Student's authentication mode  =item B<$umode> Student's authentication mode
   
Line 9564  Returns: Line 9598  Returns:
  'key_exists: <key>' -> failed to anything out of $storehash, as at   'key_exists: <key>' -> failed to anything out of $storehash, as at
                         least <key> already existed in the db (other                          least <key> already existed in the db (other
                         requested keys may also already exist)                          requested keys may also already exist)
  'error: <msg>' -> unable to tie the DB or other erorr occured   'error: <msg>' -> unable to tie the DB or other error occurred
  'con_lost' -> unable to contact request server   'con_lost' -> unable to contact request server
  'refused' -> action was not allowed by remote machine   'refused' -> action was not allowed by remote machine
   
Removed from v.1.963  
changed lines
  Added in v.1.973

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