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Diff for /loncom/lonnet/perl/lonnet.pm between versions 1.683.2.16 and 1.683.2.19

version 1.683.2.16, 2006/02/09 23:22:59 version 1.683.2.19, 2006/03/06 19:56:57
Line 3435  sub allowed { Line 3435  sub allowed {
    return 'F';     return 'F';
 }  }
   
   sub split_uri_for_cond {
       my $uri=&deversion(&declutter(shift));
       my @uriparts=split(/\//,$uri);
       my $filename=pop(@uriparts);
       my $pathname=join('/',@uriparts);
       return ($pathname,$filename);
   }
 # --------------------------------------------------- Is a resource on the map?  # --------------------------------------------------- Is a resource on the map?
   
 sub is_on_map {  sub is_on_map {
     my $uri=&deversion(&declutter(shift));      my ($pathname,$filename) = &split_uri_for_cond(shift);
     my @uriparts=split(/\//,$uri);  
     my $filename=$uriparts[$#uriparts];  
     my $pathname=$uri;  
     $pathname=~s|/\Q$filename\E$||;  
     $pathname=~s/^adm\/wrapper\///;  
     $pathname=~s/^adm\/coursedocs\/showdoc\///;  
     #Trying to find the conditional for the file      #Trying to find the conditional for the file
     my $match=($env{'acc.res.'.$env{'request.course.id'}.'.'.$pathname}=~      my $match=($env{'acc.res.'.$env{'request.course.id'}.'.'.$pathname}=~
        /\&\Q$filename\E\:([\d\|]+)\&/);         /\&\Q$filename\E\:([\d\|]+)\&/);
Line 3722  sub auto_photo_permission { Line 3723  sub auto_photo_permission {
     my $homeserver = &homeserver($cnum,$cdom);      my $homeserver = &homeserver($cnum,$cdom);
     my ($outcome,$perm_reqd,$conditions) =       my ($outcome,$perm_reqd,$conditions) = 
  split(/:/,&unescape(&reply('autophotopermission:'.$cdom,$homeserver)),3);   split(/:/,&unescape(&reply('autophotopermission:'.$cdom,$homeserver)),3);
       if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
    return (undef,undef);
       }
     return ($outcome,$perm_reqd,$conditions);      return ($outcome,$perm_reqd,$conditions);
 }  }
   
Line 3732  sub auto_checkphotos { Line 3736  sub auto_checkphotos {
     my $outcome = &unescape(&reply('autophotocheck:'.&escape($udom).':'.      my $outcome = &unescape(&reply('autophotocheck:'.&escape($udom).':'.
    &escape($uname).':'.&escape($pid),     &escape($uname).':'.&escape($pid),
    $homeserver));     $homeserver));
       if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
    return (undef,undef);
       }
     if ($outcome) {      if ($outcome) {
         ($result,$resulttype) = split(/:/,$outcome);          ($result,$resulttype) = split(/:/,$outcome);
     }       } 
Line 3744  sub auto_photochoice { Line 3751  sub auto_photochoice {
     my ($update,$comment) = split(/:/,&unescape(&reply('autophotochoice:'.      my ($update,$comment) = split(/:/,&unescape(&reply('autophotochoice:'.
        &escape($cdom),         &escape($cdom),
        $homeserver)));         $homeserver)));
       if ($update =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
    return (undef,undef);
       }
     return ($update,$comment);      return ($update,$comment);
 }  }
   
Line 4638  sub GetFileTimestamp { Line 4648  sub GetFileTimestamp {
   
 # -------------------------------------------------------- Value of a Condition  # -------------------------------------------------------- Value of a Condition
   
   # gets the value of a specific preevaluated condition
   #    stored in the string  $env{user.state.<cid>}
   # or looks up a condition reference in the bighash and if if hasn't
   # already been evaluated recurses into docondval to get the value of
   # the condition, then memoizing it to 
   #   $env{user.state.<cid>.<condition>}
 sub directcondval {  sub directcondval {
     my $number=shift;      my $number=shift;
     if (!defined($env{'user.state.'.$env{'request.course.id'}})) {      if (!defined($env{'user.state.'.$env{'request.course.id'}})) {
  &Apache::lonuserstate::evalstate();   &Apache::lonuserstate::evalstate();
     }      }
       if (exists($env{'user.state.'.$env{'request.course.id'}.".$number"})) {
    return $env{'user.state.'.$env{'request.course.id'}.".$number"};
       } elsif ($number =~ /^_/) {
    my $sub_condition;
    if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
    &GDBM_READER(),0640)) {
       $sub_condition=$bighash{'conditions'.$number};
       untie(%bighash);
    }
    my $value = &docondval($sub_condition);
    &appenv('user.state.'.$env{'request.course.id'}.".$number" => $value);
    return $value;
       }
     if ($env{'user.state.'.$env{'request.course.id'}}) {      if ($env{'user.state.'.$env{'request.course.id'}}) {
        return substr($env{'user.state.'.$env{'request.course.id'}},$number,1);         return substr($env{'user.state.'.$env{'request.course.id'}},$number,1);
     } else {      } else {
Line 4650  sub directcondval { Line 4679  sub directcondval {
     }      }
 }  }
   
   # get the collection of conditions for this resource
 sub condval {  sub condval {
     my $condidx=shift;      my $condidx=shift;
     my $result=0;  
     my $allpathcond='';      my $allpathcond='';
     foreach (split(/\|/,$condidx)) {      foreach my $cond (split(/\|/,$condidx)) {
        if (defined($env{'acc.cond.'.$env{'request.course.id'}.'.'.$_})) {   if (defined($env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond})) {
    $allpathcond.=      $allpathcond.=
                '('.$env{'acc.cond.'.$env{'request.course.id'}.'.'.$_}.')|';   '('.$env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond}.')|';
        }   }
     }      }
     $allpathcond=~s/\|$//;      $allpathcond=~s/\|$//;
     if ($env{'request.course.id'}) {      return &docondval($allpathcond);
        if ($allpathcond) {  }
           my $operand='|';  
   my @stack;  #evaluates an expression of conditions
            foreach ($allpathcond=~/(\d+|\(|\)|\&|\|)/g) {  sub docondval {
               if ($_ eq '(') {      my ($allpathcond) = @_;
                  push @stack,($operand,$result)      my $result=0;
               } elsif ($_ eq ')') {      if ($env{'request.course.id'}
                   my $before=pop @stack;   && defined($allpathcond)) {
   if (pop @stack eq '&') {   my $operand='|';
       $result=$result>$before?$before:$result;   my @stack;
                   } else {   foreach my $chunk ($allpathcond=~/(\d+|_\d+\.\d+|\(|\)|\&|\|)/g) {
                       $result=$result>$before?$result:$before;      if ($chunk eq '(') {
                   }   push @stack,($operand,$result);
               } elsif (($_ eq '&') || ($_ eq '|')) {      } elsif ($chunk eq ')') {
                   $operand=$_;   my $before=pop @stack;
               } else {   if (pop @stack eq '&') {
                   my $new=directcondval($_);      $result=$result>$before?$before:$result;
                   if ($operand eq '&') {   } else {
                      $result=$result>$new?$new:$result;      $result=$result>$before?$result:$before;
                   } else {   }
                      $result=$result>$new?$result:$new;      } elsif (($chunk eq '&') || ($chunk eq '|')) {
                   }   $operand=$chunk;
               }      } else {
           }   my $new=directcondval($chunk);
        }   if ($operand eq '&') {
       $result=$result>$new?$new:$result;
    } else {
       $result=$result>$new?$result:$new;
    }
       }
    }
     }      }
     return $result;      return $result;
 }  }
Removed from v.1.683.2.16  
changed lines
  Added in v.1.683.2.19

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