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Diff for /rat/lonuserstate.pm between versions 1.86 and 1.112

version 1.86, 2005/03/15 17:25:51 version 1.112, 2006/05/12 15:30:53
Line 31  package Apache::lonuserstate; Line 31  package Apache::lonuserstate;
   
 # ------------------------------------------------- modules used by this module  # ------------------------------------------------- modules used by this module
 use strict;  use strict;
 use Apache::Constants qw(:common :http);  
 use Apache::File;  
 use HTML::TokeParser;  use HTML::TokeParser;
 use Apache::lonnet();  use Apache::lonnet;
 use Apache::loncommon();  use Apache::loncommon();
 use GDBM_File;  use GDBM_File;
 use Apache::lonmsg;  use Apache::lonmsg;
Line 42  use Safe; Line 40  use Safe;
 use Safe::Hole;  use Safe::Hole;
 use Opcode;  use Opcode;
 use Apache::lonenc;  use Apache::lonenc;
   use Fcntl qw(:flock);
   
 # ---------------------------------------------------- Globals for this package  # ---------------------------------------------------- Globals for this package
   
Line 74  sub versiontrack { Line 73  sub versiontrack {
   
 sub putinversion {  sub putinversion {
     my $uri=shift;      my $uri=shift;
       my $key=$env{'request.course.id'}.'_'.&Apache::lonnet::clutter($uri);
     if ($hash{'version_'.$uri}) {      if ($hash{'version_'.$uri}) {
  my $version=$hash{'version_'.$uri};   my $version=$hash{'version_'.$uri};
  if ($version eq 'mostrecent') { return $uri; }   if ($version eq 'mostrecent') { return $uri; }
Line 82  sub putinversion { Line 82  sub putinversion {
              { return $uri; }               { return $uri; }
  $uri=~s/\.(\w+)$/\.$version\.$1/;   $uri=~s/\.(\w+)$/\.$version\.$1/;
     }      }
       &Apache::lonnet::do_cache_new('courseresversion',$key,&Apache::lonnet::declutter($uri),600);
     return $uri;      return $uri;
 }  }
   
Line 92  sub processversionfile { Line 93  sub processversionfile {
     my %versions=&Apache::lonnet::dump('resourceversions',      my %versions=&Apache::lonnet::dump('resourceversions',
        $cenv{'domain'},         $cenv{'domain'},
        $cenv{'num'});         $cenv{'num'});
     foreach (keys %versions) {      foreach my $ver (keys(%versions)) {
  if ($_=~/^error\:/) { return; }   if ($ver=~/^error\:/) { return; }
  $hash{'version_'.$_}=$versions{$_};   $hash{'version_'.$ver}=$versions{$ver};
     }      }
 }  }
   
Line 102  sub processversionfile { Line 103  sub processversionfile {
   
 sub loadmap {   sub loadmap { 
     my $uri=shift;      my $uri=shift;
     if ($hash{'map_pc_'.$uri}) { return OK; }      if ($hash{'map_pc_'.$uri}) { return; }
   
     $pc++;      $pc++;
     my $lpc=$pc;      my $lpc=$pc;
Line 117  sub loadmap { Line 118  sub loadmap {
     unless (($fn=~/\.sequence$/) ||      unless (($fn=~/\.sequence$/) ||
             ($fn=~/\.page$/)) {               ($fn=~/\.page$/)) { 
  $errtext.="Invalid map: $fn\n";   $errtext.="Invalid map: $fn\n";
  return OK;    return; 
     }      }
   
     my $instr=&Apache::lonnet::getfile($fn);      my $instr=&Apache::lonnet::getfile($fn);
Line 127  sub loadmap { Line 128  sub loadmap {
 # Successfully got file, parse it  # Successfully got file, parse it
   
         my $parser = HTML::TokeParser->new(\$instr);          my $parser = HTML::TokeParser->new(\$instr);
    $parser->attr_encoded(1);
         my $token;          my $token;
   
         my $linkpc=0;          my $linkpc=0;
Line 139  sub loadmap { Line 141  sub loadmap {
     if ($token->[0] eq 'S') {      if ($token->[0] eq 'S') {
                 if ($token->[1] eq 'resource') {                  if ($token->[1] eq 'resource') {
 # -------------------------------------------------------------------- Resource  # -------------------------------------------------------------------- Resource
                       if ($token->[2]->{'type'} eq 'zombie') { next; }
                     my $rid=$lpc.'.'.$token->[2]->{'id'};                      my $rid=$lpc.'.'.$token->[2]->{'id'};
   
                     $hash{'kind_'.$rid}='res';                      $hash{'kind_'.$rid}='res';
Line 162  sub loadmap { Line 164  sub loadmap {
                         if ($token->[2]->{'external'} eq 'true') { # external                          if ($token->[2]->{'external'} eq 'true') { # external
                             $turi=~s/^http\:\/\//\/adm\/wrapper\/ext\//;                              $turi=~s/^http\:\/\//\/adm\/wrapper\/ext\//;
                         } elsif ($turi=~/^\/*uploaded\//) { # uploaded                          } elsif ($turi=~/^\/*uploaded\//) { # uploaded
     if (($embstyle eq 'img') || ($embstyle eq 'emb')) {      if (($embstyle eq 'img') 
    || ($embstyle eq 'emb')
    || ($embstyle eq 'wrp')) {
                                 $turi='/adm/wrapper'.$turi;                                  $turi='/adm/wrapper'.$turi;
     } elsif ($embstyle eq 'ssi') {      } elsif ($embstyle eq 'ssi') {
  #do nothing with these   #do nothing with these
Line 173  sub loadmap { Line 177  sub loadmap {
     my $mapdir=$uri;      my $mapdir=$uri;
     $mapdir=~s/[^\/]+$//;      $mapdir=~s/[^\/]+$//;
     $turi=&Apache::lonnet::hreflocation($mapdir,$turi);      $turi=&Apache::lonnet::hreflocation($mapdir,$turi);
     if (($embstyle eq 'img') || ($embstyle eq 'emb')) {      if (($embstyle eq 'img') 
    || ($embstyle eq 'emb')
    || ($embstyle eq 'wrp')) {
  $turi='/adm/wrapper'.$turi;   $turi='/adm/wrapper'.$turi;
     }      }
                         }                          }
Line 312  sub loadmap { Line 318  sub loadmap {
   
 sub simplify {  sub simplify {
     my $expression=shift;      my $expression=shift;
   # (0&1) = 1
       $expression=~s/\(0\&([_\.\d]+)\)/$1/g;
 # (8)=8  # (8)=8
     $expression=~s/\((\d+)\)/$1/g;      $expression=~s/\(([_\.\d]+)\)/$1/g;
 # 8&8=8  # 8&8=8
     $expression=~s/(\D)(\d+)\&\2(\D)/$1$2$3/g;      $expression=~s/([^_\.\d])([_\.\d]+)\&\2([^_\.\d])/$1$2$3/g;
 # 8|8=8  # 8|8=8
     $expression=~s/(\D)(\d+)\|\2(\D)/$1$2$3/g;      $expression=~s/([^_\.\d])([_\.\d]+)\|\2([^_\.\d])/$1$2$3/g;
 # (5&3)&4=5&3&4  # (5&3)&4=5&3&4
     $expression=~s/\((\d+)((?:\&\d+)+)\)\&(\d+\D)/$1$2\&$3/g;      $expression=~s/\(([_\.\d]+)((?:\&[_\.\d]+)+)\)\&([_\.\d]+[^_\.\d])/$1$2\&$3/g;
 # (((5&3)|(4&6)))=((5&3)|(4&6))  # (((5&3)|(4&6)))=((5&3)|(4&6))
     $expression=~      $expression=~
  s/\((\(\(\d+(?:\&\d+)*\)(?:\|\(\d+(?:\&\d+)*\))+\))\)/$1/g;   s/\((\(\([_\.\d]+(?:\&[_\.\d]+)*\)(?:\|\([_\.\d]+(?:\&[_\.\d]+)*\))+\))\)/$1/g;
 # ((5&3)|(4&6))|(1&2)=(5&3)|(4&6)|(1&2)  # ((5&3)|(4&6))|(1&2)=(5&3)|(4&6)|(1&2)
     $expression=~      $expression=~
  s/\((\(\d+(?:\&\d+)*\))((?:\|\(\d+(?:\&\d+)*\))+)\)\|(\(\d+(?:\&\d+)*\))/\($1$2\|$3\)/g;   s/\((\([_\.\d]+(?:\&[_\.\d]+)*\))((?:\|\([_\.\d]+(?:\&[_\.\d]+)*\))+)\)\|(\([_\.\d]+(?:\&[_\.\d]+)*\))/\($1$2\|$3\)/g;
     return $expression;      return $expression;
 }  }
   
Line 339  sub traceroute { Line 347  sub traceroute {
  my ($mapid,$resid)=split(/\./,$rid);   my ($mapid,$resid)=split(/\./,$rid);
  my $symb=&Apache::lonnet::encode_symb($hash{'map_id_'.$mapid},$resid,$hash{'src_'.$rid});   my $symb=&Apache::lonnet::encode_symb($hash{'map_id_'.$mapid},$resid,$hash{'src_'.$rid});
  my $hidden=&Apache::lonnet::EXT('resource.0.hiddenresource',$symb);   my $hidden=&Apache::lonnet::EXT('resource.0.hiddenresource',$symb);
  if ($hdnflag || lc($hidden) eq 'yes') { $hiddenurl{$rid}=1; }  
    if ($hdnflag || lc($hidden) eq 'yes') {
       $hiddenurl{$rid}=1;
    }
    if (!$hdnflag && lc($hidden) eq 'no') {
       delete($hiddenurl{$rid});
    }
   
  my $encrypt=&Apache::lonnet::EXT('resource.0.encrypturl',$symb);   my $encrypt=&Apache::lonnet::EXT('resource.0.encrypturl',$symb);
  if ($encflag || lc($encrypt) eq 'yes') { $encurl{$rid}=1; }   if ($encflag || lc($encrypt) eq 'yes') { $encurl{$rid}=1; }
  if (($retfurl eq '') && ($hash{'src_'.$rid})   if (($retfurl eq '') && ($hash{'src_'.$rid})
Line 353  sub traceroute { Line 368  sub traceroute {
  } else {   } else {
     $hash{'conditions_'.$rid}=$sofar;      $hash{'conditions_'.$rid}=$sofar;
  }   }
  $newsofar=$hash{'conditions_'.$rid};  
    # if the expression is just the 0th condition keep it
    # otherwise leave a pointer to this condition expression
    $newsofar = ($sofar eq '0') ? $sofar : '_'.$rid;
   
  if (defined($hash{'is_map_'.$rid})) {   if (defined($hash{'is_map_'.$rid})) {
     if (defined($hash{'map_start_'.$hash{'src_'.$rid}})) {      if (defined($hash{'map_start_'.$hash{'src_'.$rid}})) {
  $sofar=$newsofar=   $sofar=$newsofar=
Line 364  sub traceroute { Line 383  sub traceroute {
     }      }
  }   }
  if (defined($hash{'to_'.$rid})) {   if (defined($hash{'to_'.$rid})) {
     foreach (split(/\,/,$hash{'to_'.$rid})) {      foreach my $id (split(/\,/,$hash{'to_'.$rid})) {
  my $further=$sofar;   my $further=$sofar;
                 if ($hash{'undercond_'.$_}) {                  if ($hash{'undercond_'.$id}) {
     if (defined($hash{'condid_'.$hash{'undercond_'.$_}})) {      if (defined($hash{'condid_'.$hash{'undercond_'.$id}})) {
  $further=simplify('('.$further.')&('.   $further=simplify('('.'_'.$rid.')&('.
   $hash{'condid_'.$hash{'undercond_'.$_}}.')');    $hash{'condid_'.$hash{'undercond_'.$id}}.')');
     } else {      } else {
  $errtext.='Undefined condition ID: '   $errtext.='Undefined condition ID: '
     .$hash{'undercond_'.$_}.'. ';      .$hash{'undercond_'.$id}.'. ';
     }      }
                 }                  }
                 $newsofar=&traceroute($further,$hash{'goesto_'.$_},$beenhere,                  $newsofar=&traceroute($further,$hash{'goesto_'.$id},$beenhere,
       $encflag,$hdnflag);        $encflag,$hdnflag);
     }      }
  }   }
Line 391  sub accinit { Line 410  sub accinit {
     my %captured=();      my %captured=();
     my $condcounter=0;      my $condcounter=0;
     $acchash{'acc.cond.'.$short.'.0'}=0;      $acchash{'acc.cond.'.$short.'.0'}=0;
     foreach (keys %hash) {      foreach my $key (keys(%hash)) {
  if ($_=~/^conditions/) {   if ($key=~/^conditions/) {
     my $expr=$hash{$_};      my $expr=$hash{$key};
     foreach ($expr=~m/(\(\(\d+(?:\&\d+)+\)(?:\|\(\d+(?:\&\d+)+\))+\))/g) {      # try to find and factor out common sub-expressions
  my $sub=$_;      foreach my $sub ($expr=~m/(\(\([_\.\d]+(?:\&[_\.\d]+)+\)(?:\|\([_\.\d]+(?:\&[_\.\d]+)+\))+\))/g) {
  my $orig=$_;   my $orig=$sub;
  $sub=~/\(\((\d+\&(:?\d+\&)*)(?:\d+\&*)+\)(?:\|\(\1(?:\d+\&*)+\))+\)/;  
  my $factor=$1;   my ($factor) = ($sub=~/\(\(([_\.\d]+\&(:?[_\.\d]+\&)*)(?:[_\.\d]+\&*)+\)(?:\|\(\1(?:[_\.\d]+\&*)+\))+\)/);
  $sub=~s/$factor//g;   next if (!defined($factor));
   
    $sub=~s/\Q$factor\E//g;
  $sub=~s/^\(/\($factor\(/;   $sub=~s/^\(/\($factor\(/;
  $sub.=')';   $sub.=')';
  $sub=simplify($sub);   $sub=simplify($sub);
  $orig=~s/(\W)/\\$1/g;   $expr=~s/\Q$orig\E/$sub/;
  $expr=~s/$orig/$sub/;  
     }      }
     $hash{$_}=$expr;      $hash{$key}=$expr;
     unless (defined($captured{$expr})) {      unless (defined($captured{$expr})) {
  $condcounter++;   $condcounter++;
  $captured{$expr}=$condcounter;   $captured{$expr}=$condcounter;
  $acchash{'acc.cond.'.$short.'.'.$condcounter}=$expr;   $acchash{'acc.cond.'.$short.'.'.$condcounter}=$expr;
     }       } 
  } elsif ($_=~/^param_(\d+)\.(\d+)/) {   } elsif ($key=~/^param_(\d+)\.(\d+)/) {
     my $prefix=&Apache::lonnet::encode_symb($hash{'map_id_'.$1},$2,      my $prefix=&Apache::lonnet::encode_symb($hash{'map_id_'.$1},$2,
     $hash{'src_'.$1.'.'.$2});      $hash{'src_'.$1.'.'.$2});
     foreach (split(/\&/,$hash{$_})) {      foreach my $param (split(/\&/,$hash{$key})) {
  my ($typename,$value)=split(/\=/,$_);   my ($typename,$value)=split(/\=/,$param);
  my ($type,$name)=split(/\:/,$typename);   my ($type,$name)=split(/\:/,$typename);
  $parmhash{$prefix.'.'.&Apache::lonnet::unescape($name)}=   $parmhash{$prefix.'.'.&Apache::lonnet::unescape($name)}=
     &Apache::lonnet::unescape($value);      &Apache::lonnet::unescape($value);
Line 425  sub accinit { Line 445  sub accinit {
     }      }
  }   }
     }      }
     foreach (keys %hash) {      foreach my $key (keys(%hash)) {
  if ($_=~/^ids/) {   if ($key=~/^ids/) {
     foreach (split(/\,/,$hash{$_})) {      foreach my $resid (split(/\,/,$hash{$key})) {
  my $resid=$_;  
  my $uri=$hash{'src_'.$resid};   my $uri=$hash{'src_'.$resid};
  $uri=~s/^\/adm\/wrapper//;   my ($uripath,$urifile) =
  $uri=&Apache::lonnet::declutter($uri);      &Apache::lonnet::split_uri_for_cond($uri);
  my @uriparts=split(/\//,$uri);  
  my $urifile=$uriparts[$#uriparts];  
  $#uriparts--;  
  my $uripath=join('/',@uriparts);  
  if ($uripath) {   if ($uripath) {
     my $uricond='0';      my $uricond='0';
     if (defined($hash{'conditions_'.$resid})) {      if (defined($hash{'conditions_'.$resid})) {
Line 447  sub accinit { Line 462  sub accinit {
     my $replace=$1;      my $replace=$1;
     my $regexp=$replace;      my $regexp=$replace;
     #$regexp=~s/\|/\\\|/g;      #$regexp=~s/\|/\\\|/g;
     $acchash{'acc.res.'.$short.'.'.$uripath}      $acchash{'acc.res.'.$short.'.'.$uripath} =~
     =~s/\Q$regexp\E/$replace\|$uricond/;   s/\Q$regexp\E/$replace\|$uricond/;
  } else {   } else {
     $acchash{'acc.res.'.$short.'.'.$uripath}.=      $acchash{'acc.res.'.$short.'.'.$uripath}.=
  $urifile.':'.$uricond.'&';   $urifile.':'.$uricond.'&';
Line 477  sub hiddenurls { Line 492  sub hiddenurls {
         my $mpc=$hash{'map_pc_'.$hash{'src_'.$rid}};          my $mpc=$hash{'map_pc_'.$hash{'src_'.$rid}};
 # ------------------------------------------- put existing resources into array  # ------------------------------------------- put existing resources into array
         my @currentrids=();          my @currentrids=();
         foreach (sort(keys(%hash))) {          foreach my $key (sort(keys(%hash))) {
     if ($_=~/^src_($mpc\.\d+)/) {      if ($key=~/^src_($mpc\.\d+)/) {
  if ($hash{'src_'.$1}) { push @currentrids, $1; }   if ($hash{'src_'.$1}) { push @currentrids, $1; }
             }              }
         }          }
Line 530  sub hiddenurls { Line 545  sub hiddenurls {
 sub readmap {  sub readmap {
     my $short=shift;      my $short=shift;
     $short=~s/^\///;      $short=~s/^\///;
     my %cenv=&Apache::lonnet::coursedescription($short);      my %cenv=&Apache::lonnet::coursedescription($short,{'freshen_cache'=>1});
     my $fn=$cenv{'fn'};      my $fn=$cenv{'fn'};
     my $uri;      my $uri;
     $short=~s/\//\_/g;      $short=~s/\//\_/g;
Line 540  sub readmap { Line 555  sub readmap {
  return 'No course data available.';   return 'No course data available.';
     }      }
     @cond=('true:normal');      @cond=('true:normal');
     unlink($fn.'.db');  
     unlink($fn.'_symb.db');      open(LOCKFILE,">$fn.db.lock");
     unlink($fn.'.state');      my $lock=0;
     unlink($fn.'parms.db');      if (flock(LOCKFILE,LOCK_EX|LOCK_NB)) {
    $lock=1;
    unlink($fn.'.db');
    unlink($fn.'_symb.db');
    unlink($fn.'.state');
    unlink($fn.'parms.db');
       }
     undef %randompick;      undef %randompick;
     undef %hiddenurl;      undef %hiddenurl;
     undef %encurl;      undef %encurl;
     $retfurl='';      $retfurl='';
     if ((tie(%hash,'GDBM_File',"$fn.db",&GDBM_WRCREAT(),0640)) &&      if ($lock && (tie(%hash,'GDBM_File',"$fn.db",&GDBM_WRCREAT(),0640)) &&
  (tie(%parmhash,'GDBM_File',$fn.'_parms.db',&GDBM_WRCREAT(),0640))) {   (tie(%parmhash,'GDBM_File',$fn.'_parms.db',&GDBM_WRCREAT(),0640))) {
  %hash=();   %hash=();
  %parmhash=();   %parmhash=();
Line 570  sub readmap { Line 591  sub readmap {
     &hiddenurls();      &hiddenurls();
  }   }
 # ------------------------------------------------------- Put versions into src  # ------------------------------------------------------- Put versions into src
  foreach (keys %hash) {   foreach my $key (keys(%hash)) {
     if ($_=~/^src\_/) {      if ($key=~/^src_/) {
  $hash{$_}=&putinversion($hash{$_});   $hash{$key}=&putinversion($hash{$key});
       } elsif ($key =~ /^(map_(?:start|finish|pc)_)(.*)/) {
    my ($type, $url) = ($1,$2);
    my $value = $hash{$key};
    $hash{$type.&putinversion($url)}=$value;
     }      }
  }   }
 # ---------------------------------------------------------------- Encrypt URLs  # ---------------------------------------------------------------- Encrypt URLs
  foreach (keys %encurl) {   foreach my $id (keys(%encurl)) {
 #    $hash{'src_'.$_}=&Apache::lonenc::encrypted($hash{'src_'.$_});  #    $hash{'src_'.$id}=&Apache::lonenc::encrypted($hash{'src_'.$id});
     $hash{'encrypted_'.$_}=1;      $hash{'encrypted_'.$id}=1;
  }   }
 # ----------------------------------------------- Close hashes to finally store  # ----------------------------------------------- Close hashes to finally store
 # --------------------------------- Routine must pass this point, no early outs  # --------------------------------- Routine must pass this point, no early outs
    $hash{'first_url'}=$retfurl;
  unless ((untie(%hash)) && (untie(%parmhash))) {   unless ((untie(%hash)) && (untie(%parmhash))) {
     &Apache::lonnet::logthis("<font color=blue>WARNING: ".      &Apache::lonnet::logthis("<font color=blue>WARNING: ".
      "Could not untie coursemap $fn for $uri.</font>");        "Could not untie coursemap $fn for $uri.</font>"); 
Line 589  sub readmap { Line 615  sub readmap {
 # ---------------------------------------------------- Store away initial state  # ---------------------------------------------------- Store away initial state
  {   {
     my $cfh;      my $cfh;
     if ($cfh=Apache::File->new(">$fn.state")) {      if (open($cfh,">$fn.state")) {
  print $cfh join("\n",@cond);   print $cfh join("\n",@cond);
     } else {      } else {
  &Apache::lonnet::logthis("<font color=blue>WARNING: ".   &Apache::lonnet::logthis("<font color=blue>WARNING: ".
  "Could not write statemap $fn for $uri.</font>");    "Could not write statemap $fn for $uri.</font>"); 
     }      }
  }     }
    flock(LOCKFILE,LOCK_UN);
    close(LOCKFILE);
     } else {      } else {
    # if we are here it is likely because we are already trying to 
    # initialize the course in another child, busy wait trying to 
    # tie the hashes for the next 90 seconds, if we succeed forward 
    # them on to navmaps, if we fail, throw up the Could not init 
    # course screen
    if ($lock) {
       # Got the lock but not the DB files
       flock(LOCKFILE,LOCK_UN);
    }
    untie(%hash);
    untie(%parmhash);
  &Apache::lonnet::logthis("<font color=blue>WARNING: ".   &Apache::lonnet::logthis("<font color=blue>WARNING: ".
  "Could not tie coursemap $fn for $uri.</font>");    "Could not tie coursemap $fn for $uri.</font>"); 
    my $i=0;
    while($i<90) {
       $i++;
       sleep(1);
       if (flock(LOCKFILE,LOCK_EX|LOCK_NB) &&
    (tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER(),0640))) {
    if (tie(%parmhash,'GDBM_File',$fn.'_parms.db',&GDBM_READER(),0640)) {
       $retfurl='/adm/navmaps';
       &Apache::lonnet::appenv("request.course.id"  => $short,
       "request.course.fn"  => $fn,
       "request.course.uri" => $uri);
       untie(%hash);
       untie(%parmhash);
       last;
    }
       }
       untie(%hash);
       untie(%parmhash);
    }
    flock(LOCKFILE,LOCK_UN);
    close(LOCKFILE);
     }      }
     &Apache::lonmsg::author_res_msg($ENV{'request.course.uri'},$errtext);      &Apache::lonmsg::author_res_msg($env{'request.course.uri'},$errtext);
 # ------------------------------------------------- Check for critical messages  # ------------------------------------------------- Check for critical messages
   
     my @what=&Apache::lonnet::dump('critical',$ENV{'user.domain'},      my @what=&Apache::lonnet::dump('critical',$env{'user.domain'},
    $ENV{'user.name'});     $env{'user.name'});
     if ($what[0]) {      if ($what[0]) {
  if (($what[0] ne 'con_lost') && ($what[0]!~/^error\:/)) {   if (($what[0] ne 'con_lost') && ($what[0]!~/^error\:/)) {
     $retfurl='/adm/email?critical=display';      $retfurl='/adm/email?critical=display';
Line 616  sub readmap { Line 676  sub readmap {
 # ------------------------------------------------------- Evaluate state string  # ------------------------------------------------------- Evaluate state string
   
 sub evalstate {  sub evalstate {
     my $fn=$ENV{'request.course.fn'}.'.state';      my $fn=$env{'request.course.fn'}.'.state';
     my $state='';      my $state='';
     if (-e $fn) {      if (-e $fn) {
  my @conditions=();   my @conditions=();
Line 648  sub evalstate { Line 708  sub evalstate {
     }      }
  }   }
     }      }
     &Apache::lonnet::appenv('user.state.'.$ENV{'request.course.id'} => $state);      &Apache::lonnet::appenv('user.state.'.$env{'request.course.id'} => $state);
     return $state;      return $state;
 }  }
   
Removed from v.1.86  
changed lines
  Added in v.1.112

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