--- loncom/lonnet/perl/lonnet.pm 2000/09/29 14:36:30 1.33 +++ loncom/lonnet/perl/lonnet.pm 2000/10/05 19:27:23 1.36 @@ -33,6 +33,7 @@ # dump(namesp) : dumps the complete namespace into a hash # ssi(url,hash) : does a complete request cycle on url to localhost, posts # hash +# coursedescription(id) : returns and caches course description for id # repcopy(filename) : replicate file # dirlist(url) : gets a directory listing # condval(index) : value of condition index based on state @@ -40,6 +41,10 @@ # refreshstate() : refresh the state information string # symblist(map,hash) : Updates symbolic storage links # rndseed() : returns a random seed +# getfile(filename) : returns the contents of filename, or a -1 if it can't +# be found, replicates and subscribes to the file +# filelocation(dir,file) : returns a farily clean absolute reference to file +# from the directory dir # # 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, @@ -51,7 +56,10 @@ # 06/26 Ben Tyszka # 06/30,07/15,07/17,07/18,07/20,07/21,07/22,07/25 Gerd Kortemeyer # 08/14 Ben Tyszka -# 08/22,08/28,08/31,09/01,09/02,09/04,09/05,09/25,09/28 Gerd Kortemeyer +# 08/22,08/28,08/31,09/01,09/02,09/04,09/05,09/25,09/28,09/30 Gerd Kortemeyer +# 10/04 Gerd Kortemeyer +# 10/04 Guy Albertelli + package Apache::lonnet; @@ -196,6 +204,15 @@ sub critical { sub appenv { my %newenv=@_; + map { + if (($newenv{$_}=~/^user\.role/) || ($newenv{$_}=~/^user\.priv/)) { + &logthis("WARNING: ". + "Attempt to modify environment ".$_." to ".$newenv{$_}); + delete($newenv{$_}); + } else { + $ENV{$_}=$newenv{$_}; + } + } keys %newenv; my @oldenv; { my $fh; @@ -445,6 +462,39 @@ sub restore { return %returnhash; } +# ---------------------------------------------------------- Course Description + +sub coursedescription { + my $courseid=shift; + $courseid=~s/^\///; + my ($cdomain,$cnum)=split(/\//,$courseid); + my $chome=homeserver($cnum,$cdomain); + if ($chome ne 'no_host') { + my $rep=reply("dump:$cdomain:$cnum:environment",$chome); + if ($rep ne 'con_lost') { + my %cachehash=(); + my %returnhash=('home' => $chome, + 'domain' => $cdomain, + 'num' => $cnum); + map { + my ($name,$value)=split(/\=/,$_); + $name=&unescape($name); + $value=&unescape($value); + $returnhash{$name}=$value; + if ($name eq 'description') { + $cachehash{$courseid}=$value; + } + } split(/\&/,$rep); + $returnhash{'url'}='/res/'.declutter($returnhash{'url'}); + $returnhash{'fn'}=$perlvar{'lonDaemons'}.'/tmp/'. + $ENV{'user.name.'}.'_'.$cdomain.'_'.$cnum; + put ('coursedescriptions',%cachehash); + return %returnhash; + } + } + return (); +} + # -------------------------------------------------------- Get user priviledges sub rolesinit { @@ -1017,6 +1067,38 @@ sub rndseed { .$symbchck); } +# ------------------------------------------------------------ Serves up a file +# returns either the contents of the file or a -1 +sub getfile { + my $file=shift; + if (! -e $file ) { + &subscribe($file); + &repcopy($file); + } + if (! -e $file ) { return -1; }; + my $fh=Apache::File->new($file); + my $a=''; + while (<$fh>) { $a .=$_; } + return $a +} + +sub filelocation { + my ($dir,$file) = @_; + my $location; + $file=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces + $file=~s/^$perlvar{'lonDocRoot'}//; + $file=~s:^/*res::; + if ( !( $file =~ m:^/:) ) { + $location = $dir. '/'.$file; + } else { + $location = '/home/httpd/html/res'.$file; + } + $location=~s://+:/:g; # remove duplicate / + while ($location=~m:/../:) {$location=~ s:/[^/]+/\.\./:/:g;} #remove dir/.. + + return $location; +} + # ------------------------------------------------------------- Declutters URLs sub declutter {