File:  [LON-CAPA] / loncom / xml / scripttag.pm
Revision 1.86: download - view: text, annotated - select for diffs
Mon Feb 24 23:32:32 2003 UTC (21 years, 3 months ago) by albertel
Branches: MAIN
CVS tags: HEAD
- making it easy to moke the port lonhttpd is on, now a config option in loncapa_apache.conf, probably should be moved to loncapa.conf and added to the install questions
- added tag <LONCAPA_INTERNAL_LONHTTPD_PORT /> that gets replaced by a bit of javascript that sets the var lonhttpdport to the correct value
- lonhttpd reads the conf files on start up ad configures intself to the proper port, if the port is set to 80 it exits assuming that Apache is running there
- header image references reference the proper port
- finally making use of the fact that menu.html is parsed before sent out

- everything assumes a default value of 8080 if it can't find a set value

    1: # The LearningOnline Network with CAPA
    2: # <script> definiton
    3: #
    4: # $Id: scripttag.pm,v 1.86 2003/02/24 23:32:32 albertel Exp $
    5: #
    6: # Copyright Michigan State University Board of Trustees
    7: #
    8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
    9: #
   10: # LON-CAPA is free software; you can redistribute it and/or modify
   11: # it under the terms of the GNU General Public License as published by
   12: # the Free Software Foundation; either version 2 of the License, or
   13: # (at your option) any later version.
   14: #
   15: # LON-CAPA is distributed in the hope that it will be useful,
   16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
   17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   18: # GNU General Public License for more details.
   19: #
   20: # You should have received a copy of the GNU General Public License
   21: # along with LON-CAPA; if not, write to the Free Software
   22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   23: #
   24: # /home/httpd/html/adm/gpl.txt
   25: #
   26: # http://www.lon-capa.org/
   27: #
   28: # 2/21 Guy
   29: # 8/20 Gerd Kortemeyer
   30: 
   31: package Apache::scripttag;
   32: 
   33: use strict;
   34: use Apache::lonnet;
   35: use Apache::style;
   36: 
   37: #Globals
   38: # this used to pass around the standard callsub arguments to a tag func
   39: # so xmlparse can reenter the inner_xmlparse loop.
   40: 
   41: @Apache::scripttag::parser_env = ();
   42: BEGIN {
   43:   &Apache::lonxml::register('Apache::scripttag',
   44: 			    ('script','scriptlib','parserlib','import',
   45: 			     'window','display','storetc','physnet',
   46: 			     'standalone','comment',
   47: 			     'LONCAPA_INTERNAL_TURN_STYLE_ON',
   48: 			     'LONCAPA_INTERNAL_LONHTTPD_PORT'));
   49: }
   50: 
   51: sub start_LONCAPA_INTERNAL_TURN_STYLE_ON {
   52:     $Apache::lonxml::usestyle=1;
   53:     return ('','no');
   54: }
   55: 
   56: sub end_LONCAPA_INTERNAL_TURN_STYLE_ON {
   57:     return ('','no');
   58: }
   59: 
   60: sub start_LONCAPA_INTERNAL_LONHTTPD_PORT {
   61:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
   62:     if ($target eq 'web') {
   63: 	my $lonhttpdPort=$Apache::lonnet::perlvar{'lonhttpdPort'};
   64: 	if (!defined($lonhttpdPort)) { $lonhttpdPort='8080'; }
   65: 	return '<script type="text/javascript">var lonhttpdport=\''.
   66: 	    $lonhttpdPort.'\';</script>';
   67:     }
   68:     return ('','no');
   69: }
   70: 
   71: sub end_LONCAPA_INTERNAL_LONHTTPD_PORT {
   72:     return ('','no');
   73: }
   74: 
   75: sub start_script {
   76:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
   77:   @Apache::scripttag::parser_env = @_;
   78:   my $result='';
   79:   my $type= &Apache::lonxml::get_param('type',$parstack,$safeeval);
   80:   &Apache::lonxml::debug("found type of $type");
   81:   if ($type eq "loncapa/perl") {
   82:     my $bodytext=&Apache::lonxml::get_all_text("/script",$parser);
   83:     if ( $target eq "modified" ) {
   84:       $result=$token->[4].&Apache::edit::modifiedfield();
   85:     } elsif ( $target eq 'web' || $target eq 'tex' ||
   86: 	      $target eq 'grade' || $target eq 'answer' ||
   87: 	      $target eq 'analyze' ) {
   88: 	if (!$Apache::lonxml::default_homework_loaded) {
   89: 	    &Apache::lonxml::default_homework_load($safeeval);
   90: 	}
   91: 	&Apache::run::run($bodytext,$safeeval);
   92: 	if (($target eq 'answer') && ($Apache::lonhomework::viewgrades == 'F')) {
   93: 	    $Apache::lonxml::evaluate--;
   94: 	    $result.="<a href=\"javascript:newWindow=open(\'\',\'new_W\',\'width=500,height=200,scrollbars=1\');newWindow.document.open(\'text/html\',\'replace\');newWindow.document.writeln(\'&lt;html&gt;&lt;head&gt;&lt;title&gt;newwindow&lt;/title&gt;&lt;/head&gt;&lt;body bgcolor=&quot;#FFFFFF&quot;&gt;&lt;pre&gt;";
   95: 	    my $listing= &HTML::Entities::encode(&Apache::run::dump($target,$safeeval));
   96: 
   97: 	    $result.=$listing;
   98: 	    $result.= "&lt;/pre&gt;&lt;/body&gt;&lt;/html&gt;\');newWindow.document.close();void(0);\">Script Vars</a><br />";
   99: 	}
  100:     } elsif ($target eq "edit" ) {
  101:       #&Apache::run::run($bodytext,$safeeval);
  102:       #$result="<br /> &lt;$token->[1]&gt; output: <br />$bodytext<br />Source:<br />";
  103:       $result=&Apache::edit::tag_start($target,$token,'Script');
  104:       $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,4);
  105:     }
  106:   } else {
  107:     if ($target ne "meta") {
  108:       $result = $token->[4];
  109:       my $bodytext=&Apache::lonxml::get_all_text("/script",$parser);
  110:       $result.=$bodytext;
  111:     }
  112:   }
  113:   return $result;
  114: }
  115: 
  116: sub end_script {
  117:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
  118:   if ( $target eq "meta" ) { return ''; } 
  119:   my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval);
  120:   my $result='';
  121:   #other script blocks need to survive
  122:   if ($type ne "loncapa/perl") {
  123:     return $token->[2];
  124:   } elsif ($target eq 'edit' ) {
  125:     return &Apache::edit::end_table();
  126:   } elsif ($target eq 'answer') {
  127:     $Apache::lonxml::evaluate++;
  128:   }
  129:   return '';
  130: }
  131: 
  132: sub start_display {
  133:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
  134: 
  135:   my $result;
  136:   my $bodytext=&Apache::lonxml::get_all_text("/display",$parser);
  137: 
  138:   if ( $target eq "modified" ) {
  139:     $result=$token->[4].&Apache::edit::modifiedfield();
  140:   } elsif ( $target eq 'web' || $target eq 'tex' ||
  141: 	    $target eq 'grade' || $target eq 'answer' ||
  142: 	      $target eq 'analyze') {
  143:       if (!$Apache::lonxml::default_homework_loaded) {
  144: 	  &Apache::lonxml::default_homework_load($safeeval);
  145:       }
  146:       $result=&Apache::run::run($bodytext,$safeeval);
  147:       if ($target eq 'grade' || $target eq 'answer' ||
  148: 	  $target eq 'analyze') {
  149: 	  $result=''; # grade should produce no output
  150:       }
  151:   } elsif ($target eq "edit" ) {
  152:     #$result = 
  153:     #  "<br /> &lt;$token->[1]&gt; output: <br />$bodytext<br />Source:<br />";
  154:     #$result.=&Apache::edit::editfield($token->[1],$bodytext,'',40,1);
  155:     $result=&Apache::edit::tag_start($target,$token,'Script With Display');
  156:     $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,1)
  157:   }
  158:   return $result;
  159: }
  160: 
  161: sub end_display {
  162:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
  163:   if ($target eq 'edit' ) { return &Apache::edit::end_table(); }
  164:   return '';
  165: }
  166: 
  167: sub start_scriptlib {
  168:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  169:   my $bodytext;
  170:   my $result ='';
  171:   my $error='';
  172: 
  173:   if ($target eq 'web' || $target eq 'grade' || $target eq 'meta' || 
  174:       $target eq 'edit' || $target eq 'answer' || $target eq 'analyze') {
  175:     $bodytext=$$parser[$#$parser]->get_text("/scriptlib");
  176:     $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
  177: 				     $$parstack[$#$parstack]);
  178:     my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
  179: 					       $bodytext);
  180:     my $script=&Apache::lonnet::getfile($location);
  181:     if ($script == -1) {
  182:       if ($target eq 'edit') {
  183:         $error='</tr><tr><td>Errors</td><td colspan="2"><b> Unable to find <i>'.$location.'</i></b></td>'."\n";
  184:       } else {
  185: 	&Apache::lonxml::error("<b> Unable to find <i>$location</i> for scriptlib</b>");
  186: 	return "";
  187:       }
  188:     }
  189:     &Apache::run::run($script,$safeeval);
  190:     #&Apache::lonxml::debug("ran $bodytext:<br />".&Apache::lonnet::getfile($bodytext)."<br />");
  191:   }
  192:   if ($target eq "edit" ) {
  193:     $result=
  194:       &Apache::edit::tag_start($target,$token,'New Script Functions').
  195: 	&Apache::edit::editline($token->[1],$bodytext,'scriptlib',40).
  196:             &Apache::edit::browse(undef,'textnode').
  197: 	  $error.'</td></tr>'.
  198: 	    &Apache::edit::end_table();
  199:   }
  200:   if ($target eq "modified" ) {
  201:     $bodytext=$$parser[$#$parser]->get_text("/scriptlib");
  202:     $result=$token->[4].&Apache::edit::modifiedfield($token);
  203:     &Apache::lonxml::debug($result);
  204:   }
  205:   return $result;
  206: }
  207: 
  208: sub end_scriptlib {
  209:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  210:   my @result;
  211:   if ($target eq "edit" ) { $result[1]='no'; }
  212:   return @result;
  213: }
  214: 
  215: sub start_parserlib {
  216:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  217:   my $bodytext;
  218:   my $result ="";
  219:   my $error='';
  220:   if ($target eq 'web' || $target eq 'grade' || $target eq 'meta' ||
  221:       $target eq 'edit' || $target eq 'answer' || $target eq 'analyze') {
  222:     $bodytext=$$parser[$#$parser]->get_text("/parserlib");
  223:     $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
  224: 				     $$parstack[$#$parstack]);
  225:     my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
  226: 					       $bodytext);
  227:     my $styletext=&Apache::lonnet::getfile($location);
  228:     #&Apache::lonxml::debug("found :$bodytext: in :$location: with :$styletext:");
  229:     if ($styletext == -1) {
  230:       if ($target eq 'edit') {
  231: 	$error='</tr><tr><td>Errors</td><td colspan="2"><b> Unable to find <i>'.$location.'</i></b></td>'."\n";
  232:       } else {
  233: 	&Apache::lonxml::error("<b> Unable to find <i>$location</i> for parserlib</b>");
  234: 	return "";
  235:       }
  236:     }
  237:     %$style = ( %$style , &Apache::style::styleparser($target,$styletext));
  238:   }
  239:   if ($target eq "edit" ) {
  240:     $result=
  241:       &Apache::edit::tag_start($target,$token,'New Tag Definitions').
  242: 	&Apache::edit::editline($token->[1],$bodytext,'',40).
  243: 	  $error.'</td></tr>'.
  244: 	    &Apache::edit::end_table();
  245:   }
  246:   if ($target eq "modified" ) {
  247:     $bodytext=$$parser[$#$parser]->get_text("/parserlib");
  248:     $result=$token->[4].&Apache::edit::modifiedfield($token);
  249:     &Apache::lonxml::debug($result);
  250:   }
  251:   return $result;
  252: }
  253: 
  254: sub end_parserlib {
  255:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  256:   my @result;
  257:   if ($target eq "edit" ) { $result[1]='no'; }
  258:   return @result;
  259: }
  260: 
  261: sub start_window {
  262:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  263:   my $result = '';
  264:   if ($target eq 'web') {
  265:     &Apache::lonxml::startredirection;
  266:   }  elsif ($target eq 'tex') {
  267:        $result = '\unskip\footnote{';
  268:    }
  269:   return $result;  
  270: }
  271: 
  272: sub end_window {
  273:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  274:   my $result;
  275:   if ($target eq 'web') {
  276:     my $output=&Apache::lonxml::endredirection;
  277:     $output =~ s/\"/\&quot\;/g;
  278:     $result = "<a href=\"javascript:newWindow=open(\'\',\'new_W\',\'width=500,height=200,scrollbars=1\');newWindow.document.open(\'text/html\',\'replace\');newWindow.document.writeln(\'<html><head><title>newwindow</title></head><body bgcolor=&quot;#FFFFFF&quot;> $output </body></html>\');newWindow.document.close();void(0);\"><sup>*</sup></a>";
  279:   } elsif ($target eq 'tex') {
  280:       $result = '}';
  281:   } else {
  282:       $result = '';
  283:   }
  284:   return $result; 
  285: }
  286: 
  287: sub start_import {
  288:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  289:   my $bodytext=$$parser[$#$parser]->get_text("/import");
  290:   my $result ="";
  291: 
  292:   $bodytext=Apache::run::evaluate($bodytext,$safeeval,$$parstack[$#$parstack]);
  293: 
  294:   if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
  295:       $target eq 'tex' || $target eq 'analyze' ) {
  296:     # FIXME this probably needs to be smart about construction vs.
  297:     # non construction space.
  298:     my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
  299:     my $file=&Apache::lonnet::getfile($location);
  300:     if ($file == -1) {
  301:       &Apache::lonxml::error("<b> Unable to find <i>$bodytext as $location</i> for import</b>");
  302:       return "";
  303:     }
  304: 
  305:     my $dir=$location;
  306:     $dir=~s:/[^/]*$::;
  307:     #  &Apache::lonxml::debug("directory $dir $location file $file \n<b>END</b>\n");
  308:     my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
  309:     if (!$id) { $id=$Apache::lonxml::curdepth; }
  310:     push(@Apache::inputtags::import,$id);
  311:     &Apache::lonxml::newparser($parser,\$file,$dir);
  312:   } elsif ($target eq "edit" ) {
  313:     $result.=&Apache::edit::tag_start($target,$token);
  314:     $result.=&Apache::edit::editline($token->[1],$bodytext,'',40);
  315:     $result.=&Apache::edit::browse(undef,'textnode');
  316:     #FIXME this need to convert $bodytext to be a contruction space reference
  317:     #my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
  318:     #$result.="Click<a href=\"$location\">here</a> to edit<br />"
  319:   } elsif ($target eq 'modified') {
  320:     $bodytext=$$parser[$#$parser]->get_text("/import");
  321:     $result=$token->[4].&Apache::edit::modifiedfield($token);
  322:     &Apache::lonxml::debug($result);
  323:   } elsif ($target eq 'meta') {
  324:     my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
  325:     $result.='<import part="'.$Apache::inputtags::part;
  326:     if ($id) {
  327:       $result.='" id="'.$id;
  328:     }
  329:     $result.='">';
  330:     $result.=$bodytext;
  331:     $result.='</import>';
  332:   }
  333:   return $result;
  334: }
  335: 
  336: sub end_import {
  337:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  338:   pop(@Apache::inputtags::import);
  339:   my $result;
  340:   if ($target eq 'edit' ) { $result=&Apache::edit::end_table(); }
  341:   return $result;
  342: }
  343: 
  344: sub start_storetc {
  345:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  346:   my $result = '';
  347:   &Apache::lonxml::startredirection;
  348:   return $result; 
  349: }
  350: 
  351: sub end_storetc {
  352:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  353:     my $result;
  354:     my $output=&Apache::lonxml::endredirection;
  355:     $output =~ s/\"/\&quot\;/g;
  356:     $result = '{\bf '.$output.'.}}\write\tcfile{\protect\tcpc{ '.$output.'.}{\the\value{relpage}}}';
  357:     return $result;
  358: }
  359: 
  360: 
  361: sub start_physnet {
  362:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  363:     my $bodytext = '/adm/includes/physnet.sty';
  364:     my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
  365:     my $cbistyletext=&Apache::lonnet::getfile($location);
  366: 
  367:     %$style = (%$style,&Apache::style::styleparser($target,$cbistyletext));
  368:     $$parser['-1']->unget_token($token);
  369: #    if ( defined($$style{'physnet'}) ) {
  370: #        &Apache::lonxml::newparser($parser,\$$style{'physnet'});
  371: #    }
  372:     return "";
  373: }
  374: 
  375: sub end_physnet {
  376:   return '';
  377: }
  378: 
  379: sub start_standalone {
  380:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  381:   my $result='';
  382:   if ($target eq 'web' ) {
  383:     if ( $ENV{'request.course.id'} ) {
  384:       my $inside = &Apache::lonxml::get_all_text("/standalone",$parser);
  385:     } else {
  386:       $result='<table bgcolor="#E1E1E1" border="2"><tr><td>';
  387:     }
  388:   }
  389:   return $result;
  390: }
  391: 
  392: sub end_standalone {
  393:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  394:   my $result='';
  395:   if ($target eq 'web' ) {
  396:     if ( $ENV{'request.course.id'} ) {
  397:     } else {
  398:       $result='</td></tr></table>';
  399:     }
  400:   }
  401:   return $result;
  402: }
  403: 
  404: sub start_comment {
  405:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  406:   my $result='';
  407:   if ($target eq 'edit') {
  408:     $result=&Apache::edit::tag_start($target,$token);
  409:     my $bodytext=&Apache::lonxml::get_all_text("/comment",$parser);
  410:     $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,4)
  411:   } elsif ( $target eq 'modified') {
  412:     $result=$token->[4].&Apache::edit::modifiedfield($token);
  413:   } elsif ( $target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
  414: 	    $target eq 'answer' || $target eq 'meta' || $target eq 'analyze') {
  415:     #normally throw away comments
  416:     my $bodytext=&Apache::lonxml::get_all_text("/comment",$parser);
  417:   }
  418:   return $result;
  419: }
  420: 
  421: sub end_comment {
  422:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
  423:   if ($target eq 'edit' ) { return &Apache::edit::end_table(); }
  424:   return '';
  425: }
  426: 
  427: 
  428: sub xmlparse {
  429:   my ($string) = @_;
  430:   &Apache::lonxml::debug("Got $string");
  431:   my ($target,$token,$tagstack,$parstack,$oldparser,$safeeval,$style)=
  432:     @Apache::scripttag::parser_env;
  433:   my @parser;
  434:   &Apache::lonxml::newparser(\@parser,\$string);
  435:   my $result=&Apache::lonxml::inner_xmlparse($target,$tagstack,
  436: 					     $parstack,\@parser,
  437: 					     $safeeval,$style);
  438:   return $result;
  439: }
  440: 
  441: 1;
  442: __END__

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>