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Diff for /loncom/lonnet/perl/lonnet.pm between versions 1.22 and 1.26

version 1.22, 2000/07/25 15:39:41 version 1.26, 2000/09/01 21:34:27
Line 4 Line 4
 # Functions for use by content handlers:  # Functions for use by content handlers:
 #  #
 # plaintext(short)   : plain text explanation of short term  # plaintext(short)   : plain text explanation of short term
 # allowed(short,url) : returns codes for allowed actions F,R,S,C  # fileembstyle(ext)  : embed style in page for file extension
   # filedescription(ext) : descriptor text for file extension
   # allowed(short,url) : returns codes for allowed actions F,R,S,X,C
 # definerole(rolename,sys,dom,cou) : define a custom role rolename  # definerole(rolename,sys,dom,cou) : define a custom role rolename
 #                      set priviledges in format of lonTabs/roles.tab for  #                      set priviledges in format of lonTabs/roles.tab for
 #                      system, domain and course level,   #                      system, domain and course level, 
Line 16 Line 18
 #                      Specify name and domain of role author, and role name  #                      Specify name and domain of role author, and role name
 # revokerole (udom,uname,url,role) : Revoke a role for url  # revokerole (udom,uname,url,role) : Revoke a role for url
 # revokecustomrole (udom,uname,url,rdom,rnam,rolename) : Revoke a custom role  # revokecustomrole (udom,uname,url,rdom,rnam,rolename) : Revoke a custom role
 # appendenv(hash)    : adds hash to session environment  # appenv(hash)       : adds hash to session environment
 # store(hash)        : stores hash permanently for this url  # store(hash)        : stores hash permanently for this url
 # restore            : returns hash for this url  # restore            : returns hash for this url
 # eget(namesp,array) : returns hash with keys from array filled in from namesp  # eget(namesp,array) : returns hash with keys from array filled in from namesp
 # get(namesp,array)  : returns hash with keys from array filled in from namesp  # get(namesp,array)  : returns hash with keys from array filled in from namesp
 # put(namesp,hash)   : stores hash in namesp  # put(namesp,hash)   : stores hash in namesp
 # dump(namesp)       : dumps the complete namespace into a hash  # dump(namesp)       : dumps the complete namespace into a hash
 # ssi(url)           : does a complete request cycle on url to localhost  # ssi(url,hash)      : does a complete request cycle on url to localhost, posts
   #                      hash
 # repcopy(filename)  : replicate file  # repcopy(filename)  : replicate file
 # dirlist(url)       : gets a directory listing  # dirlist(url)       : gets a directory listing
   # condval(index)     : value of condition index based on state 
 #  #
 # 6/1/99,6/2,6/10,6/11,6/12,6/14,6/26,6/28,6/29,6/30,  # 6/1/99,6/2,6/10,6/11,6/12,6/14,6/26,6/28,6/29,6/30,
 # 7/1,7/2,7/9,7/10,7/12,7/14,7/15,7/19,  # 7/1,7/2,7/9,7/10,7/12,7/14,7/15,7/19,
Line 36 Line 40
 # 06/05,06/26 Gerd Kortemeyer  # 06/05,06/26 Gerd Kortemeyer
 # 06/26 Ben Tyszka  # 06/26 Ben Tyszka
 # 06/30,07/15,07/17,07/18,07/20,07/21,07/22,07/25 Gerd Kortemeyer  # 06/30,07/15,07/17,07/18,07/20,07/21,07/22,07/25 Gerd Kortemeyer
   # 08/14 Ben Tyszka
   # 08/22,08/28,08/31,09/01 Gerd Kortemeyer
   
 package Apache::lonnet;  package Apache::lonnet;
   
Line 44  use Apache::File; Line 50  use Apache::File;
 use LWP::UserAgent();  use LWP::UserAgent();
 use HTTP::Headers;  use HTTP::Headers;
 use vars   use vars 
 qw(%perlvar %hostname %homecache %spareid %hostdom %libserv %pr %prp $readit);  qw(%perlvar %hostname %homecache %spareid %hostdom %libserv %pr %prp %fe %fd $readit);
 use IO::Socket;  use IO::Socket;
 use Apache::Constants qw(:common :http);  use Apache::Constants qw(:common :http);
   
Line 191  sub appenv { Line 197  sub appenv {
         chomp($oldenv[$i]);          chomp($oldenv[$i]);
         if ($oldenv[$i] ne '') {          if ($oldenv[$i] ne '') {
            my ($name,$value)=split(/=/,$oldenv[$i]);             my ($name,$value)=split(/=/,$oldenv[$i]);
    $newenv{$name}=$value;             unless (defined($newenv{$name})) {
         $newenv{$name}=$value;
      }
         }          }
     }      }
     {      {
Line 303  sub subscribe { Line 311  sub subscribe {
   
 sub repcopy {  sub repcopy {
     my $filename=shift;      my $filename=shift;
       $filename=~s/\/+/\//g;
     my $transname="$filename.in.transfer";      my $transname="$filename.in.transfer";
     if ((-e $filename) || (-e $transname)) { return OK; }      if ((-e $filename) || (-e $transname)) { return OK; }
     my $remoteurl=subscribe($filename);      my $remoteurl=subscribe($filename);
Line 360  sub repcopy { Line 369  sub repcopy {
   
 sub ssi {  sub ssi {
   
     my $fn=shift;      my ($fn,%form)=@_;
   
     my $ua=new LWP::UserAgent;      my $ua=new LWP::UserAgent;
     my $request=new HTTP::Request('GET',"http://".$ENV{'HTTP_HOST'}.$fn);      
       my $request;
       
       if (%form) {
         $request=new HTTP::Request('POST',"http://".$ENV{'HTTP_HOST'}.$fn);
         $request->content(join '&', map { "$_=$form{$_}" } keys %form);
       } else {
         $request=new HTTP::Request('GET',"http://".$ENV{'HTTP_HOST'}.$fn);
       }
   
     $request->header(Cookie => $ENV{'HTTP_COOKIE'});      $request->header(Cookie => $ENV{'HTTP_COOKIE'});
     my $response=$ua->request($request);      my $response=$ua->request($request);
   
Line 629  sub plaintext { Line 647  sub plaintext {
     return $prp{$short};      return $prp{$short};
 }  }
   
   # ------------------------------------------------------------------ Plain Text
   
   sub fileembstyle {
       my $ending=shift;
       return $fe{$ending};
   }
   
   # ------------------------------------------------------------ Description Text
   
   sub filedecription {
       my $ending=shift;
       return $fd{$ending};
   }
   
 # ----------------------------------------------------------------- Assign Role  # ----------------------------------------------------------------- Assign Role
   
 sub assignrole {  sub assignrole {
Line 730  sub dirlist { Line 762  sub dirlist {
    }     }
 }  }
   
   # -------------------------------------------------------- Value of a Condition
   
   sub condval {
       my $condidx=shift;
       my $result=0;
       if ($ENV{'request.course'}) {
          if ($ENV{'acc.cond.'.$ENV{'request.course'}.'.'.$condidx}) {
             my $operand='|';
     my @stack;
             map {
                 if ($_ eq '(') {
                    push @stack,($operand,$result)
                 } elsif ($_ eq ')') {
                     my $before=pop @stack;
     if (pop @stack eq '&') {
         $result=$result>$before?$before:$result;
                     } else {
                         $result=$result>$before?$result:$before;
                     }
                 } elsif (($_ eq '&') || ($_ eq '|')) {
                     $operand=$_;
                 } else {
                     my $new=
                          substr($ENV{'user.state.'.$ENV{'request.course'}},$_,1);
                     if ($operand eq '&') {
                        $result=$result>$new?$new:$result;
                     } else {
                        $result=$result>$new?$result:$new;
                     }                  
                 }
             } ($ENV{'acc.cond.'.$ENV{'request.course'}.'.'.$condidx}=~
                /(\d+|\(|\)|\&|\|)/g);
          }
       }
       return $result;
   }
   
 # -------------------------------------------------------- Escape Special Chars  # -------------------------------------------------------- Escape Special Chars
   
 sub escape {  sub escape {
Line 808  if ($readit ne 'done') { Line 877  if ($readit ne 'done') {
     }      }
 }  }
   
   # ------------------------------------------------------------- Read file types
   {
       my $config=Apache::File->new("$perlvar{'lonTabDir'}/filetypes.tab");
   
       while (my $configline=<$config>) {
          chomp($configline);
          my ($ending,$emb,@descr)=split(/\s+/,$configline);
          if ($descr[0] ne '') { 
            $fe{$ending}=$emb;
            $fd{$ending}=join(' ',@descr);
          }
       }
   }
   
   
 $readit='done';  $readit='done';
 &logthis('<font color=yellow>INFO: Read configuration</font>');  &logthis('<font color=yellow>INFO: Read configuration</font>');
Removed from v.1.22  
changed lines
  Added in v.1.26

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