Annotation of loncom/interface/lonindexer.pm, revision 1.146

1.1       www         1: # The LearningOnline Network with CAPA
1.24      harris41    2: # Directory Indexer
                      3: #
1.146   ! www         4: # $Id: lonindexer.pm,v 1.145 2006/06/08 13:56:31 www Exp $
1.24      harris41    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.
1.14      harris41   14: #
1.24      harris41   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/
1.14      harris41   27: #
1.23      harris41   28: ###
                     29: 
                     30: ###############################################################################
                     31: ##                                                                           ##
                     32: ## ORGANIZATION OF THIS PERL MODULE                                          ##
                     33: ##                                                                           ##
                     34: ## 1. Description of functions                                               ##
                     35: ## 2. Modules used by this module                                            ##
                     36: ## 3. Choices for different output views (detailed, summary, xml, etc)       ##
                     37: ## 4. BEGIN block (to be run once after compilation)                         ##
                     38: ## 5. Handling routine called via Apache and mod_perl                        ##
                     39: ## 6. Other subroutines                                                      ##
                     40: ##                                                                           ##
                     41: ###############################################################################
1.7       harris41   42: 
1.1       www        43: package Apache::lonindexer;
                     44: 
1.23      harris41   45: # ------------------------------------------------- modules used by this module
1.1       www        46: use strict;
1.133     albertel   47: use Apache::lonnet;
1.30      harris41   48: use Apache::loncommon();
1.83      www        49: use Apache::lonhtmlcommon();
1.94      www        50: use Apache::lonsequence();
1.1       www        51: use Apache::Constants qw(:common);
1.70      ng         52: use Apache::lonmeta;
1.2       harris41   53: use Apache::File;
1.77      www        54: use Apache::lonlocal;
1.109     taceyjo1   55: use Apache::lonsource();
1.2       harris41   56: use GDBM_File;
                     57: 
1.23      harris41   58: # ---------------------------------------- variables used throughout the module
1.87      www        59: my %hash; # global user-specific gdbm file
1.17      harris41   60: my %dirs; # keys are directories, values are the open/close status
                     61: my %language; # has the reference information present in language.tab
1.111     www        62: my %dynhash; # hash of hashes for dynamic metadata
1.117     www        63: my %dynread; # hash of directories already read for dynamic metadata
1.113     www        64: my %fieldnames; # Metadata fieldnames
1.17      harris41   65: # ----- Values which are set by the handler subroutine and are accessible to
                     66: # -----     other methods.
                     67: my $extrafield; # default extra table cell
                     68: my $fnum; # file counter
                     69: my $dnum; # directory counter
1.1       www        70: 
1.40      matthew    71: # ----- Used to include or exclude files with certain extensions.
1.43      matthew    72: my @Only = ();
1.40      matthew    73: my @Omit = ();
                     74: 
                     75: 
1.125     foxr       76: 
                     77: 
1.23      harris41   78: # ----------------------------- Handling routine called via Apache and mod_perl
1.1       www        79: sub handler {
                     80:     my $r = shift;
1.67      matthew    81:     my $c = $r->connection();
1.76      www        82:     &Apache::loncommon::content_type($r,'text/html');
1.50      albertel   83:     &Apache::loncommon::no_cache($r);
1.1       www        84:     $r->send_http_header;
                     85:     return OK if $r->header_only;
1.9       harris41   86:     $fnum=0;
1.16      harris41   87:     $dnum=0;
1.17      harris41   88: 
1.43      matthew    89:     # Deal with stupid global variables (is there a way around making
                     90:     # these global to this package?  It is just so wrong....)
                     91:     undef (@Only);
                     92:     undef (@Omit);
1.113     www        93:     %fieldnames=&Apache::lonmeta::fieldnames();
1.43      matthew    94: 
1.23      harris41   95: # ------------------------------------- read in machine configuration variables
1.10      harris41   96:     my $iconpath= $r->dir_config('lonIconsURL') . "/";
1.1       www        97:     my $domain  = $r->dir_config('lonDefDomain');
                     98:     my $role    = $r->dir_config('lonRole');
                     99:     my $loadlim = $r->dir_config('lonLoadLim');
                    100:     my $servadm = $r->dir_config('lonAdmEMail');
                    101:     my $sysadm  = $r->dir_config('lonSysEMail');
                    102:     my $lonhost = $r->dir_config('lonHostID');
                    103:     my $tabdir  = $r->dir_config('lonTabDir');
                    104: 
1.7       harris41  105:     my $fileclr='#ffffe6';
1.15      harris41  106:     my $line;
                    107:     my (@attrchk,@openpath);
                    108:     my $uri=$r->uri;
                    109: 
1.7       harris41  110: # -------------------------------------- see if called from an interactive mode
1.35      matthew   111:     # Get the parameters from the query string
1.36      matthew   112:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.40      matthew   113: 	     ['catalogmode','launch','acts','mode','form','element',
1.79      albertel  114:               'only','omit','titleelement']);
1.35      matthew   115:     #-------------------------------------------------------------------
1.17      harris41  116:     my $closebutton='';
1.7       harris41  117:     my $groupimportbutton='';
                    118:     my $colspan=''; 
1.141     albertel  119:     
1.14      harris41  120:     $extrafield='';
1.17      harris41  121:     my $diropendb = 
1.144     www       122: 	"/home/httpd/perl/tmp/$env{'user.domain'}_$env{'user.name'}_sel_res.db";
1.67      matthew   123:     %hash = ();
1.68      albertel  124:     {
                    125: 	my %dbfile;
1.87      www       126: 	if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_READER(),0640)) {
1.68      albertel  127: 	    while(my($key,$value)=each(%dbfile)) {
                    128: 		$hash{$key}=$value;
                    129: 	    }
                    130: 	    untie(%dbfile);
                    131: 	}
                    132:     }
                    133:     {
1.133     albertel  134: 	if ($env{'form.launch'} eq '1') {
1.17      harris41  135: 	    &start_fresh_session();
1.141     albertel  136: 	}
1.105     taceyjo1  137:   #Hijack lonindexer to verify a title and be close down.
1.133     albertel  138:    if ($env{'form.launch'} eq '2') {
1.130     albertel  139:        &Apache::loncommon::content_type($r,'text/html');
1.108     albertel  140:        my $extra='';
1.133     albertel  141:        if (defined($env{'form.titleelement'}) && 
                    142: 	   $env{'form.titleelement'} ne '') {
                    143: 	   my $verify_title = &Apache::lonnet::gettitle($env{'form.acts'});
                    144: #	   &Apache::lonnet::logthis("Hrrm $env{'form.acts'} -- $verify_title");
1.108     albertel  145: 	   $verify_title=~s/'/\\'/g;
1.133     albertel  146: 	   $extra='window.opener.document.forms["'.$env{'form.form'}.'"].elements["'.$env{'form.titleelement'}.'"].value=\''.$verify_title.'\';';
1.108     albertel  147:        }
1.141     albertel  148:        my $js = <<ENDSUBM;
1.129     albertel  149: 	       <script type="text/javascript">
1.105     taceyjo1  150: 		function load() {
1.133     albertel  151: 			window.opener.document.forms["$env{'form.form'}"]
                    152: 			    .elements["$env{'form.element'}"]
                    153: 			    .value='$env{'form.acts'}';
1.108     albertel  154: 			$extra
1.105     taceyjo1  155: 			window.close();
                    156: 		}
1.129     albertel  157:    	       </script>
1.105     taceyjo1  158: ENDSUBM
1.141     albertel  159:        $r->print(&Apache::loncommon::start_page(undef,$js,
                    160: 						{'only_body'   =>1,
                    161: 						 'add_entries' =>
1.142     albertel  162: 						     {'onload' => "load();"},}
                    163: 						).
1.141     albertel  164: 		 &Apache::loncommon::end_page());
1.108     albertel  165:        return OK;
1.105     taceyjo1  166:    }
                    167:     
1.17      harris41  168: # -------------------- refresh environment with user database values (in %hash)
1.133     albertel  169: 	&setvalues(\%hash,'form.catalogmode',\%env,'form.catalogmode'   );
1.15      harris41  170: 
1.17      harris41  171: # --------------------- define extra fields and buttons in case of special mode
1.133     albertel  172: 	if ($env{'form.catalogmode'} eq 'interactive') {
1.15      harris41  173: 	    $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
                    174: 		'<a name="$anchor"><img src="'.$iconpath.'whitespace1.gif"'.
1.17      harris41  175: 		' border="0" /></td>';
1.15      harris41  176: 	    $colspan=" colspan='2' ";
1.77      www       177:             my $cl=&mt('Close');
1.15      harris41  178:             $closebutton=<<END;
1.131     albertel  179: <input type="button" name="close" value='$cl' onClick="self.close()" />
1.7       harris41  180: END
1.16      harris41  181:         }
1.145     www       182: 	elsif ($env{'form.catalogmode'} eq 'import') {
1.15      harris41  183: 	    $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
                    184: 		'<a name="$anchor"><img src="'.$iconpath.'whitespace1.gif"'.
1.17      harris41  185: 		' border="0" /></td>';
1.15      harris41  186: 	    $colspan=" colspan='2' ";
1.77      www       187: 	    my $cl=&mt('Close');
1.123     matthew   188:             my $gi=&mt('Import');
1.15      harris41  189:             $closebutton=<<END;
1.131     albertel  190: <input type="button" name="close" value='$cl' onClick="self.close()" />
1.7       harris41  191: END
1.15      harris41  192:             $groupimportbutton=<<END;
1.77      www       193: <input type="button" name="groupimport" value='$gi'
1.131     albertel  194: onClick="javascript:select_group()" />
1.7       harris41  195: END
1.15      harris41  196:         }
1.35      matthew   197: 	# Additions made by Matthew to make the browser a little easier to deal
                    198: 	# with in the future.
                    199: 	#
                    200: 	# $mode (at this time) indicates if we are in edit mode.
                    201: 	# $form is the name of the form that the URL is placed when the
                    202: 	#       selection is made.
                    203: 	# $element is the name of the element in $formname which receives
                    204: 	#       the URL.
1.91      taceyjo1  205: 	#&Apache::lonxml::debug('Checking mode, form, element');
1.133     albertel  206: 	&setvalues(\%hash,'form.mode'        ,\%env,'form.mode'   );
                    207: 	&setvalues(\%hash,'form.form'        ,\%env,'form.form'   );
                    208: 	&setvalues(\%hash,'form.element'     ,\%env,'form.element');
                    209: 	&setvalues(\%hash,'form.titleelement',\%env,'form.titleelement');
                    210: 	&setvalues(\%hash,'form.only'        ,\%env,'form.only'   );
                    211: 	&setvalues(\%hash,'form.omit'        ,\%env,'form.omit'   );
1.35      matthew   212: 
1.40      matthew   213:         # Deal with 'omit' and 'only' 
1.133     albertel  214:         if (exists $env{'form.omit'}) {
                    215:             @Omit = split(',',$env{'form.omit'});
1.40      matthew   216:         }
1.133     albertel  217:         if (exists $env{'form.only'}) {
                    218:             @Only = split(',',$env{'form.only'});
1.40      matthew   219:         }
                    220:         
1.133     albertel  221: 	my $mode = $env{'form.mode'};
1.79      albertel  222: 	my ($form,$element,$titleelement);
1.39      matthew   223: 	if ($mode eq 'edit' || $mode eq 'parmset') {
1.133     albertel  224: 	    $form         = $env{'form.form'};
                    225: 	    $element      = $env{'form.element'};
                    226: 	    $titleelement = $env{'form.titleelement'};
1.35      matthew   227: 	}
1.90      taceyjo1  228: 	#&Apache::lonxml::debug("mode=$mode form=$form element=$element titleelement=$titleelement");
1.17      harris41  229: # ------ set catalogmodefunctions to have extra needed javascript functionality
1.15      harris41  230: 	my $catalogmodefunctions='';
1.133     albertel  231: 	if ($env{'form.catalogmode'} eq 'interactive' or
1.145     www       232: 	    $env{'form.catalogmode'} eq 'import') {
1.35      matthew   233: 	    # The if statement below sets us up to use the old version
                    234: 	    # by default (ie. if $mode is undefined).  This is the easy
                    235: 	    # way out.  Hopefully in the future I'll find a way to get 
                    236: 	    # the calls dealt with in a more comprehensive manner.
1.41      www       237: 
                    238: #
                    239: # There is now also mode "simple", which is for the simple version of the rat
                    240: #
                    241: #
1.39      matthew   242: 	    if (!defined($mode) || ($mode ne 'edit' && $mode ne 'parmset')) {
1.145     www       243:                 my $location = "/adm/groupsort?catalogmode=import&";
1.41      www       244:                 $location .= "mode=".$mode."&";
1.40      matthew   245:                 $location .= "acts=";
1.35      matthew   246: 		$catalogmodefunctions=<<"END";
1.108     albertel  247: function select_data(url) {
1.7       harris41  248:     changeURL(url);
1.8       harris41  249:     self.close();
                    250: }
                    251: function select_group() {
1.40      matthew   252:     window.location="$location"+document.forms.fileattr.acts.value;
1.16      harris41  253: }
1.35      matthew   254: function changeURL(val) {
                    255:     if (opener.inf) {
                    256:         if (opener.inf.document.forms.resinfo.elements.u) {
                    257: 	    opener.inf.document.forms.resinfo.elements.u.value=val;
                    258:         }
1.7       harris41  259:     }
                    260: }
1.35      matthew   261: END
1.39      matthew   262:             } elsif ($mode eq 'edit') { # we are in 'edit' mode
1.40      matthew   263:                 my $location = "/adm/groupsort?catalogmode=interactive&";
                    264:                 $location .= "form=$form&element=$element&mode=edit&acts=";
1.35      matthew   265: 		$catalogmodefunctions=<<END;
                    266: // mode = $mode
1.108     albertel  267: function select_data(url) {
                    268:    var location = "/res/?launch=2&form=$form&element=$element&titleelement=$titleelement&acts=" + url;
1.105     taceyjo1  269:    window.location=location;
1.35      matthew   270: }
                    271: function select_group() {
1.40      matthew   272:     window.location="$location"+document.forms.fileattr.acts.value;
1.35      matthew   273: }
                    274: 
1.7       harris41  275: function changeURL(val) {
1.35      matthew   276:     if (window.opener.document) {
                    277: 	window.opener.document.forms["$form"].elements["$element"].value=val;
                    278:     } else {
                    279: 	    alert("The file you selected is: "+val);
1.7       harris41  280:     }
                    281: }
                    282: END
1.79      albertel  283:                 if (!$titleelement) {
                    284: 		    $catalogmodefunctions.='function changeTitle(val) {}';
                    285: 		} else {
                    286: 		    $catalogmodefunctions.=<<END;
                    287: function changeTitle(val) {
                    288:     if (window.opener.document) {
                    289: 	    window.opener.document.forms["$form"].elements["$titleelement"].value=val;
                    290:     } else {
                    291: 	    alert("The title of the file you selected is: "+val);
                    292:     }
                    293: }
                    294: END
                    295:                 }
1.39      matthew   296:             } elsif ($mode eq 'parmset') {
1.40      matthew   297:                 my $location = "/adm/groupsort?catalogmode=interactive&";
                    298:                 $location .= "form=$form&element=$element&mode=parmset&acts=";
1.39      matthew   299: 		$catalogmodefunctions=<<END;
                    300: // mode = $mode
1.108     albertel  301: function select_data(url) {
1.39      matthew   302:     changeURL(url);
                    303:     self.close();
                    304: }
                    305: 
                    306: function select_group() {
1.40      matthew   307:     window.location="$location"+document.forms.fileattr.acts.value;
1.39      matthew   308: }
                    309: 
                    310: function changeURL(val) {
                    311:     if (window.opener.document) {
                    312:         var elementname  = "$element"+"_value";
                    313:         var checkboxname = "$element"+"_setparmval";
                    314: 	window.opener.document.forms["$form"].elements[elementname].value=val;
                    315:         window.opener.document.forms["$form"].elements[checkboxname].checked=true;
                    316:     } else {
                    317: 	    alert("The file you selected is: "+val);
                    318:     }
                    319: }
                    320: 
                    321: END
                    322:             }
1.15      harris41  323:         }
1.38      matthew   324:         $catalogmodefunctions.=<<END;
                    325: var acts='';
                    326: function rep_dirpath(suffix,val) {
                    327:     eval("document.forms.dirpath"+suffix+".acts.value=val");
                    328: }
                    329: END
1.145     www       330: 	if ($env{'form.catalogmode'} eq 'import') {
1.38      matthew   331:             $catalogmodefunctions.=<<END;
1.16      harris41  332: function queue(val) {
                    333:     if (eval("document.forms."+val+".filelink.checked")) {
                    334: 	var l=val.length;
                    335: 	var v=val.substring(4,l);
                    336: 	document.forms.fileattr.acts.value+='1a'+v+'b';
                    337:     }
                    338:     else {
                    339: 	var l=val.length;
                    340: 	var v=val.substring(4,l);
                    341: 	document.forms.fileattr.acts.value+='0a'+v+'b';
                    342:     }
                    343: }
                    344: END
                    345: 	}
1.17      harris41  346: 
1.1       www       347: # ---------------------------------------------------------------- Print Header
1.141     albertel  348: 	my $js = <<"ENDHEADER";
1.19      harris41  349: <script type="text/javascript">
1.7       harris41  350: $catalogmodefunctions
1.69      www       351: function openWindow(url, wdwName, w, h, toolbar,scrollbar,locationbar) {
1.71      ng        352:     var xpos = (screen.width-w)/2;
                    353:     xpos = (xpos < 0) ? '0' : xpos;
                    354:     var ypos = (screen.height-h)/2-30;
                    355:     ypos = (ypos < 0) ? '0' : ypos;
                    356:     var options = "width=" + w + ",height=" + h + ",screenx="+xpos+",screeny="+ypos+",";
1.2       harris41  357:     options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
1.69      www       358:     options += "menubar=no,toolbar="+toolbar+",location="+locationbar+",directories=no";
1.2       harris41  359:     var newWin = window.open(url, wdwName, options);
                    360:     newWin.focus();
                    361: }
1.16      harris41  362: function gothere(val) {
                    363:     window.location=val+'?acts='+document.forms.fileattr.acts.value;
                    364: }
1.14      harris41  365: </script>
1.141     albertel  366: ENDHEADER
1.3       harris41  367: 
1.141     albertel  368:         my ($headerdom)=($uri=~/^\/res\/(\w+)\//);
                    369: 	$r->print(&Apache::loncommon::start_page('Browse Resources',$js,
                    370: 						 {'domain' => $headerdom,}));
1.17      harris41  371: # - Evaluate actions from previous page (both cumulatively and chronologically)
1.145     www       372:         if ($env{'form.catalogmode'} eq 'import') {
1.133     albertel  373: 	    my $acts=$env{'form.acts'};
1.16      harris41  374: 	    my @Acts=split(/b/,$acts);
                    375: 	    my %ahash;
                    376: 	    my %achash;
                    377: 	    my $ac=0;
1.17      harris41  378: 	    # some initial hashes for working with data
1.27      harris41  379: 	    foreach (@Acts) {
1.16      harris41  380: 		my ($state,$ref)=split(/a/);
                    381: 		$ahash{$ref}=$state;
                    382: 		$achash{$ref}=$ac;
                    383: 		$ac++;
1.27      harris41  384: 	    }
1.87      www       385: 	    # sorting through the actions and changing the global database hash
1.27      harris41  386: 	    foreach (sort {$achash{$a}<=>$achash{$b}} (keys %ahash)) {
1.16      harris41  387: 		my $key=$_;
                    388: 		if ($ahash{$key} eq '1') {
                    389: 		    $hash{'store_'.$hash{'pre_'.$key.'_link'}}=
                    390: 			$hash{'pre_'.$key.'_title'};
                    391: 		    $hash{'storectr_'.$hash{'pre_'.$key.'_link'}}=
                    392: 			$hash{'storectr'}+0;
                    393: 		    $hash{'storectr'}++;
                    394: 		}
                    395: 		if ($ahash{$key} eq '0') {
                    396: 		    if ($hash{'store_'.$hash{'pre_'.$key.'_link'}}) {
                    397: 			delete $hash{'store_'.$hash{'pre_'.$key.'_link'}};
                    398: 		    }
                    399: 		}
1.27      harris41  400: 	    }
1.17      harris41  401: 	    # deleting the previously cached listing
1.27      harris41  402: 	    foreach (keys %hash) {
1.16      harris41  403: 		if ($_ =~ /^pre_/ && $_ =~/link$/) {
                    404: 		    my $key = $_;
                    405: 		    $key =~ s/^pre_//;
                    406: 		    $key =~ s/_[^_]*$//;
                    407: 		    delete $hash{'pre_'.$key.'_title'};
                    408: 		    delete $hash{'pre_'.$key.'_link'};
                    409: 		}
1.27      harris41  410: 	    }
1.16      harris41  411: 	}
                    412: 	
1.23      harris41  413: # ---------------------------------- get state of file attributes to be showing
1.133     albertel  414: 	if ($env{'form.attrs'}) {
1.111     www       415: 	    for (my $i=0; $i<=11; $i++) {
1.6       harris41  416: 		delete $hash{'display_attrs_'.$i};
1.133     albertel  417: 		if ($env{'form.attr'.$i} == 1) {
1.45      ng        418: 		    $attrchk[$i] = 'checked';
1.6       harris41  419: 		    $hash{'display_attrs_'.$i} = 1;
                    420: 		}
                    421: 	    }
                    422: 	} else {
1.111     www       423: 	    for (my $i=0; $i<=11; $i++) {
1.45      ng        424: 		$attrchk[$i] = 'checked' if $hash{'display_attrs_'.$i} == 1;
1.6       harris41  425: 	    }
                    426: 	}
1.87      www       427: 
1.23      harris41  428: # ------------------------------- output state of file attributes to be showing
1.71      ng        429: #                                 All versions has to the last item
                    430: #                                 since it does not take an extra col
1.77      www       431: 	my %lt=&Apache::lonlocal::texthash(
                    432: 					   'ti' => 'Title',
                    433: 					   'si' => 'Size',
                    434: 					   'la' => 'Last access',
                    435: 					   'lm' => 'Last modified',
                    436: 					   'st' => 'Statistics',
                    437: 					   'au' => 'Author',
                    438: 					   'kw' => 'Keywords',
1.78      www       439: 					   'ln' => 'Language',
1.109     taceyjo1  440: 					   'sa' => 'Source Available',
1.77      www       441: 					   'sr' => 'Show resource',
1.111     www       442: 					   'li' => 'Linked/Related Resources',
1.77      www       443: 					   'av' => 'All versions',
                    444: 					   'ud' => 'Update Display'
                    445: 					   );
1.15      harris41  446: 	$r->print(<<END);
1.17      harris41  447: <form method="post" name="fileattr" action="$uri"
                    448:  enctype="application/x-www-form-urlencoded">
1.124     matthew   449: <label><input type="checkbox" name="attr9" value="1" $attrchk[9] onClick="this.form.submit();" /> $lt{'av'}</label>
1.115     www       450: <table border="0">
                    451: <tr>
1.124     matthew   452: <td><label><input type="checkbox" name="attr0" value="1" $attrchk[0] onClick="this.form.submit();" /> $lt{'ti'}</label></td>
                    453: <td><label><input type="checkbox" name="attr4" value="1" $attrchk[4] onClick="this.form.submit();" /> $lt{'au'}</label></td>
                    454: <td><label><input type="checkbox" name="attr5" value="1" $attrchk[5] onClick="this.form.submit();" /> $lt{'kw'}</label></td>
                    455: <td><label><input type="checkbox" name="attr6" value="1" $attrchk[6] onClick="this.form.submit();" /> $lt{'ln'}</label></td>
1.115     www       456: </tr>
                    457: <tr>
1.124     matthew   458: <td><label><input type="checkbox" name="attr1" value="1" $attrchk[1] onClick="this.form.submit();" /> $lt{'si'}</label></td>
                    459: <td><label><input type="checkbox" name="attr2" value="1" $attrchk[2] onClick="this.form.submit();" /> $lt{'la'}</label></td>
                    460: <td><label><input type="checkbox" name="attr3" value="1" $attrchk[3] onClick="this.form.submit();" /> $lt{'lm'}</label></td>
                    461: <td><label><input type="checkbox" name="attr10" value="1" $attrchk[10] onClick="this.form.submit();" /> $lt{'sa'}</label></td>
1.115     www       462: </tr>
                    463: <tr>
1.124     matthew   464: <td><label><input type="checkbox" name="attr8" value="1" $attrchk[8] onClick="this.form.submit();" /> $lt{'st'}</label></td>
                    465: <td><label><input type="checkbox" name="attr11" value="1" $attrchk[11] onClick="this.form.submit();" /> $lt{'li'}</label></td>
                    466: <td><label><input type="checkbox" name="attr7" value="1" $attrchk[7] onClick="this.form.submit();" /> $lt{'sr'}</label></td>
1.115     www       467: <td>&nbsp;</td>
                    468: </tr>
                    469: </table>
1.87      www       470: <input type="hidden" name="attrs" value="1" />
                    471: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
1.16      harris41  472: <input type="hidden" name="acts" value="" />
1.87      www       473: $closebutton $groupimportbutton
1.1       www       474: END
1.97      www       475: # -------------- Filter out sequence containment in crumbs and "recent folders"
                    476: 	my $storeuri=$uri;
                    477: 	$storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
                    478: 	$storeuri=~s/\/+/\//g;
1.82      www       479: # ---------------------------------------------------------------- Bread crumbs
1.97      www       480:         $r->print(&Apache::lonhtmlcommon::crumbs($storeuri,'','',
1.145     www       481: 				(($env{'form.catalogmode'} eq 'import')?
1.87      www       482: 				 'document.forms.fileattr':'')).
                    483: 		  &Apache::lonhtmlcommon::select_recent('residx','resrecent',
1.128     foxr      484: 'window.status=this.form.resrecent.options[this.form.resrecent.selectedIndex].value;this.form.action=this.form.resrecent.options[this.form.resrecent.selectedIndex].value;this.form.submit();'));
1.100     www       485: # -------------------------------------------------------- Resource Home Button
1.133     albertel  486: 	my $reshome=$env{'course.'.$env{'request.course.id'}.'.reshome'};
1.100     www       487: 	if ($reshome) {
                    488: 	    $r->print("<font size='+2'><a href='");
1.145     www       489: 	    if ($env{'form.catalogmode'} eq 'import') {
1.100     www       490: 		$r->print('javascript:document.forms.fileattr.action="'.$reshome.'";document.forms.fileattr.submit();');
                    491: 	    } else {
                    492: 		$r->print($reshome);
                    493: 	    }
                    494: 	    $r->print("'>".&mt('Home').'</a></font>');
                    495: 	}
                    496: 	$r->print('</form>');
1.85      www       497: # ------------------------------------------------------ Remember where we were
1.97      www       498: 	&Apache::loncommon::storeresurl($storeuri);
                    499: 	&Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
1.23      harris41  500: # ----------------- output starting row to the indexed file/directory hierarchy
1.15      harris41  501:         my $titleclr="#ddffff";
1.129     albertel  502:         #$r->print(&initdebug());
                    503:         #$r->print(&writedebug("Omit:@Omit")) if (@Omit);
                    504:         #$r->print(&writedebug("Only:@Only")) if (@Only);
                    505:         $r->print('<table width="100%" border="0"><tr><td bgcolor="#777777">'."\n");
                    506: 	$r->print('<table width="100%" border="0"><tr bgcolor="'.$titleclr.'">'."\n");
1.77      www       507: 	$r->print("<td $colspan><b>".&mt('Name')."</b></td>\n");
                    508: 	$r->print("<td><b>".&mt('Title')."</b></td>\n") 
1.45      ng        509: 	    if ($hash{'display_attrs_0'} == 1);
1.77      www       510: 	$r->print("<td align=right><b>".&mt("Size")." (".&mt("bytes").") ".
1.45      ng        511: 		  "</b></td>\n") if ($hash{'display_attrs_1'} == 1);
1.77      www       512: 	$r->print("<td><b>".&mt("Last accessed")."</b></td>\n") 
1.17      harris41  513: 	    if ($hash{'display_attrs_2'} == 1);
1.77      www       514: 	$r->print("<td><b>".&mt("Last modified")."</b></td>\n")
1.17      harris41  515: 	    if ($hash{'display_attrs_3'} == 1);
1.77      www       516: 	$r->print("<td><b>".&mt("Author(s)")."</b></td>\n")
1.17      harris41  517: 	    if ($hash{'display_attrs_4'} == 1);
1.77      www       518: 	$r->print("<td><b>".&mt("Keywords")."</b></td>\n")
1.17      harris41  519: 	    if ($hash{'display_attrs_5'} == 1);
1.77      www       520: 	$r->print("<td><b>".&mt("Language")."</b></td>\n")
1.45      ng        521: 	    if ($hash{'display_attrs_6'} == 1);
1.77      www       522: 	$r->print("<td><b>".&mt("Usage Statistics")." <br />(".
1.120     matthew   523: 		  &mt("Courses/Network Hits").")</b> ".&mt('updated periodically')."</td>\n")
1.70      ng        524: 	    if ($hash{'display_attrs_8'} == 1);
1.109     taceyjo1  525: 	$r->print("<td><b>".&mt("Source Available")."</b></td>\n")
                    526: 	    if ($hash{'display_attrs_10'} == 1);
1.111     www       527: 	$r->print("<td><b>".&mt("Linked/Related Resources")."</b></td>\n")
                    528: 	    if ($hash{'display_attrs_11'} == 1);
1.115     www       529: 	$r->print("<td><b>".&mt("Resource")."</b></td>\n")
                    530: 	    if ($hash{'display_attrs_7'} == 1);
1.45      ng        531: 	$r->print('</tr>');
1.5       harris41  532: 
1.23      harris41  533: # ----------------- read in what directories have previously been set to "open"
1.27      harris41  534: 	foreach (keys %hash) {
1.4       harris41  535: 	    if ($_ =~ /^diropen_status_/) {
                    536: 		my $key = $_;
                    537: 		$key =~ s/^diropen_status_//;
                    538: 		$dirs{$key} = $hash{$_};
                    539: 	    }
1.27      harris41  540: 	}
1.4       harris41  541: 
1.133     albertel  542: 	if ($env{'form.openuri'}) {  # take care of review and refresh options
                    543: 	    my $uri=$env{'form.openuri'};
1.4       harris41  544: 	    if (exists($hash{'diropen_status_'.$uri})) {
                    545: 		my $cursta = $hash{'diropen_status_'.$uri};
1.2       harris41  546: 		$dirs{$uri} = 'open';
1.4       harris41  547: 		$hash{'diropen_status_'.$uri} = 'open';
                    548: 		if ($cursta eq 'open') {
                    549: 		    $dirs{$uri} = 'closed';
                    550: 		    $hash{'diropen_status_'.$uri} = 'closed';
                    551: 		}
1.2       harris41  552: 	    } else {
1.4       harris41  553: 		$hash{'diropen_status_'.$uri} = 'open';
1.2       harris41  554: 		$dirs{$uri} = 'open';
                    555: 	    }
                    556: 	}
1.12      ng        557: 	
                    558: 	my $toplevel;
1.13      ng        559: 	my $indent = 0;
1.12      ng        560: 	$uri = $uri.'/' if $uri !~ /.*\/$/;
1.17      harris41  561: 
1.133     albertel  562:  	if ($env{'form.dirPointer'} ne 'on') {
1.88      www       563:  	    $hash{'top.level'} = $uri;
                    564:  	    $toplevel = $uri;
                    565:  	} else {
                    566:  	    $toplevel = $hash{'top.level'};
                    567:  	}
1.17      harris41  568: 
1.23      harris41  569: # -------------------------------- if not at top level, provide an uplink arrow
1.45      ng        570: 	if ($toplevel ne '/res/'){
1.13      ng        571: 	    my (@uri_com) = split(/\//,$uri);
                    572: 	    pop @uri_com;
                    573: 	    my $upone = join('/',@uri_com);
                    574: 	    my @list = qw (0);
                    575: 	    &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
                    576: 	    $indent = 1;
1.12      ng        577: 	}
1.17      harris41  578: 
1.23      harris41  579: # -------- recursively go through all the directories and output as appropriate
1.16      harris41  580: 	&scanDir ($r,$toplevel,$indent,\%hash);
1.12      ng        581: 	
1.23      harris41  582: # ---------------------------- embed hidden information useful for group import
1.8       harris41  583: 	$r->print("<form name='fnum'>");
1.131     albertel  584: 	$r->print("<input type='hidden' name='fnum' value='$fnum' /></form>");
1.17      harris41  585: 
1.23      harris41  586: # -------------------------------------------------------------- end the tables
1.45      ng        587: 	$r->print('</table>');
                    588: 	$r->print('</td></tr></table>');
1.17      harris41  589: 
1.23      harris41  590: # --------------------------------------------------- end the output and return
1.141     albertel  591: 	$r->print(&Apache::loncommon::end_page()."\n");
1.2       harris41  592:     }
1.67      matthew   593:     if(! $c->aborted()) {
1.87      www       594: # write back into the temporary file
1.68      albertel  595: 	my %dbfile;
1.67      matthew   596:         if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
                    597:             while (my($key,$value) = each(%hash)) {
                    598:                 $dbfile{$key}=$value;
                    599:             }
                    600:             untie(%dbfile);
                    601:         }
                    602:     }
                    603: 
1.1       www       604:     return OK;
                    605: }
1.2       harris41  606: 
1.17      harris41  607: # ----------------------------------------------- recursive scan of a directory
1.2       harris41  608: sub scanDir {
1.16      harris41  609:     my ($r,$startdir,$indent,$hashref)=@_;
1.67      matthew   610:     my $c = $r->connection();
1.3       harris41  611:     my ($compuri,$curdir);
                    612:     my $dirptr=16384;
1.90      taceyjo1  613:     my $obs;
1.1       www       614:     $indent++;
1.2       harris41  615:     my %dupdirs = %dirs;
                    616:     my @list=&get_list($r,$startdir);
                    617:     foreach my $line (@list) {
1.67      matthew   618:         return if ($c->aborted());
1.90      taceyjo1  619: 	#This is a kludge, sorry aboot this
1.92      taceyjo1  620: 	my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16); 
1.90      taceyjo1  621: 	next if($strip =~ /.*\.meta$/ | $obs eq '1');
1.18      ng        622: 	my (@fileparts) = split(/\./,$strip);
1.70      ng        623: 	if ($hash{'display_attrs_9'} != 1) {
1.95      www       624: # if not all versions to be shown
1.18      ng        625: 	    if (scalar(@fileparts) >= 3) {
                    626: 		my $fext = pop @fileparts;
                    627: 		my $ov = pop @fileparts;
                    628: 		my $fname = join ('.',@fileparts,$fext);
1.75      albertel  629: 		next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
1.18      ng        630: 	    }
                    631: 	}
                    632: 
1.45      ng        633: 	if ($dom eq 'domain') {
1.72      albertel  634: 	    # dom list has full path /res/<domain name>/ already
                    635: 	    $curdir='';
1.73      albertel  636: 	    $compuri = (split(/\&/,$line))[0];
1.2       harris41  637: 	} else {
1.17      harris41  638: 	    # user, dir & file have name only, i.e., w/o path
1.45      ng        639: 	    $compuri = join('',$startdir,$strip,'/');
1.3       harris41  640: 	    $curdir = $startdir;
1.2       harris41  641: 	}
1.45      ng        642: 	my $diropen = 'closed';
1.96      www       643: 	if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
1.3       harris41  644: 	    while (my ($key,$val)= each %dupdirs) {
1.5       harris41  645: 		if ($key eq $compuri and $val eq "open") {
1.11      ng        646: 		    $diropen = "opened";
1.53      albertel  647: 		    delete($dupdirs{$key});
                    648: 		    delete($dirs{$key});
1.5       harris41  649: 		}
1.3       harris41  650: 	    }
1.1       www       651: 	}
1.16      harris41  652: 	&display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
1.45      ng        653: 	&scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
1.1       www       654:     }
                    655:     $indent--;
                    656: }
                    657: 
1.17      harris41  658: # --------------- get complete matched list based on the uri (returns an array)
1.1       www       659: sub get_list {
                    660:     my ($r,$uri)=@_;
1.97      www       661:     my @list=();
1.45      ng        662:     (my $luri = $uri) =~ s/\//_/g;
1.133     albertel  663:     if ($env{'form.updatedisplay'}) {
1.27      harris41  664: 	foreach (keys %hash) {
1.4       harris41  665: 	    delete $hash{$_} if ($_ =~ /^dirlist_files_/);
1.121     albertel  666: 	    delete $hash{$_} if ($_ =~ /^dirlist_timestamp_files_/);
1.87      www       667: 	}
1.2       harris41  668:     }
                    669: 
1.121     albertel  670:     if (defined($hash{'dirlist_files_'.$luri}) &&
                    671: 	$hash{'dirlist_timestamp_files_'.$luri}+600 > (time)) {
1.4       harris41  672: 	@list = split(/\n/,$hash{'dirlist_files_'.$luri});
1.97      www       673:     } elsif ($uri=~/\.(page|sequence)\/$/) {
1.94      www       674: # is a page or a sequence
1.97      www       675: 	$uri=~s/\/$//;
                    676: 	$uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
                    677: 	$uri=~s/\/+/\//g;
                    678: 	foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
                    679: 	    my @ratpart=split(/\:/,$_);
                    680: 	    push @list,$ratpart[1];
                    681: 	} 
1.94      www       682: 	$hash{'dirlist_files_'.$luri} = join("\n",@list);
1.1       www       683:     } else {
1.94      www       684: # is really a directory
1.4       harris41  685: 	@list = &Apache::lonnet::dirlist($uri);
1.87      www       686: 	$hash{'dirlist_files_'.$luri} = join("\n",@list);
1.121     albertel  687: 	$hash{'dirlist_timestamp_files_'.$luri} = time;
1.1       www       688:     }
1.91      taceyjo1  689:     return @list=&match_ext($r,@list);
1.1       www       690: }
                    691: 
1.112     www       692: sub dynmetaread {
                    693:     my $uri=shift;
                    694:     if (($hash{'display_attrs_8'}==1) || ($hash{'display_attrs_11'}==1)) {
1.117     www       695: # We don't want the filename
                    696: 	$uri=~s/\/[^\/]+$//;
                    697: # Did we already see this?
                    698: 	my $builddir=$uri;
                    699: 	while ($builddir) {
                    700: 	    if ($dynread{$builddir}) {
                    701: 		return 0;
                    702: 	    }
                    703: 	    $builddir=~s/\/[^\/]+$//;
                    704: 	}
                    705: # Actually get the data
1.112     www       706: 	%dynhash=
1.143     www       707: 	    (%dynhash,&Apache::lonmeta::get_dynamic_metadata_from_sql($uri.'/'));
1.117     www       708: # Remember that we got it
                    709: 	$dynread{$uri}=1;
1.112     www       710:     } 
                    711: }
                    712: 
1.40      matthew   713: sub initdebug {
1.141     albertel  714:     my $start_page=
                    715: 	&Apache::loncommon::start_page('Debug',undef,
                    716: 				       {'only_body' => 1,});
                    717:     $start_page =~ s/\n/ /g;
1.40      matthew   718:     return <<ENDJS;
1.141     albertel  719: <script type="text/javascript">
1.40      matthew   720: var debugging = true;
                    721: if (debugging) {
                    722:     var debuggingWindow = window.open('','Debug','width=400,height=300',true);
                    723: } 
                    724: 
                    725: function output(text) {
                    726:     if (debugging) {
                    727:         debuggingWindow.document.writeln(text);
                    728:     }
                    729: }
1.141     albertel  730: output('$start_page<pre>');   
1.40      matthew   731: </script>
                    732: ENDJS
                    733: }
                    734: 
                    735: sub writedebug {
1.141     albertel  736:     my ($text) = @_;
                    737:     return "<script type=\"text/javascript\">output('$text');</script>";
1.40      matthew   738: }
                    739: 
1.17      harris41  740: # -------------------- filters out files based on extensions (returns an array)
1.1       www       741: sub match_ext {
                    742:     my ($r,@packlist)=@_;
                    743:     my @trimlist;
                    744:     my $nextline;
                    745:     my @fileext;
                    746:     my $dirptr=16384;
                    747: 
1.2       harris41  748:     foreach my $line (@packlist) {
                    749: 	chomp $line;
                    750: 	$line =~ s/^\/home\/httpd\/html//;
                    751: 	my @unpackline = split (/\&/,$line);
1.45      ng        752: 	next if ($unpackline[0] eq '.');
                    753: 	next if ($unpackline[0] eq '..');
1.2       harris41  754: 	my @filecom = split (/\./,$unpackline[0]);
                    755: 	my $fext = pop(@filecom);
1.96      www       756: 	my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
1.2       harris41  757:  	if ($fnptr == 0 and $unpackline[3] ne "") {
1.28      harris41  758: 	    my $embstyle = &Apache::loncommon::fileembstyle($fext);
1.25      matthew   759:             push @trimlist,$line if (defined($embstyle) && 
1.32      harris41  760: 				     ($embstyle ne 'hdn' or $fext eq 'meta'));
1.1       www       761: 	} else {
1.2       harris41  762: 	    push @trimlist,$line;
1.1       www       763: 	}
                    764:     }
1.80      albertel  765:     @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
1.1       www       766:     return @trimlist;
                    767: }
                    768: 
1.17      harris41  769: # ------------------------------- displays one line in appropriate table format
1.23      harris41  770: sub display_line {
1.16      harris41  771:     my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
1.53      albertel  772:     my (@pathfn, $fndir);
1.97      www       773: # there could be relative paths (files actually belonging into this directory)
                    774: # or absolute paths (for example, from sequences)
                    775:     my $absolute;
                    776:     my $pathprefix;
1.107     albertel  777:     if ($line=~m|^/res/| && $startdir ne '') {
1.97      www       778: 	$absolute=1;
                    779: 	$pathprefix='';
                    780:     } else {
                    781: 	$absolute=0;
                    782: 	$pathprefix=$startdir;
                    783:     }
1.1       www       784:     my $dirptr=16384;
                    785:     my $fileclr="#ffffe6";
1.45      ng        786:     my $iconpath= $r->dir_config('lonIconsURL') . '/';
1.1       www       787: 
                    788:     my @filecom = split (/\&/,$line);
                    789:     my @pathcom = split (/\//,$filecom[0]);
                    790:     my $listname = $pathcom[scalar(@pathcom)-1];
                    791:     my $fnptr = $filecom[3]&$dirptr;
1.77      www       792:     my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
                    793:     $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
1.1       www       794: 
1.45      ng        795:     my $tabtag='</td>';
1.1       www       796:     my $i=0;
1.109     taceyjo1  797:     while ($i<=11) {
1.45      ng        798: 	$tabtag=join('',$tabtag,"<td>&nbsp;</td>")
1.17      harris41  799: 	    if $hash{'display_attrs_'.$i} == 1;
1.1       www       800: 	$i++;
                    801:     }
1.63      ng        802:     my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
1.17      harris41  803: 
                    804: # display uplink arrow
1.45      ng        805:     if ($filecom[1] eq 'viewOneUp') {
1.98      www       806: 	my $updir=$startdir;
                    807: # -------------- Filter out sequence containment in crumbs and "recent folders"
                    808: 	$updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
                    809: 	$updir=~s/\/+/\//g;
                    810: 
1.70      ng        811: 	$r->print("<tr valign='$valign' bgcolor=$fileclr>$extrafield");
                    812: 	$r->print("<td>\n");
1.98      www       813: 	$r->print ('<form method="post" name="dirpathUP" action="'.$updir.
1.16      harris41  814: 		   '/" '.
1.17      harris41  815: 		   'onSubmit="return rep_dirpath(\'UP\','.
                    816: 		   'document.forms.fileattr.acts.value)" '.
1.16      harris41  817: 		   'enctype="application/x-www-form-urlencoded"'.
                    818:                    '>'."\n");
1.17      harris41  819: 	$r->print ('<input type=hidden name=openuri value="'.
1.131     albertel  820: 		   $startdir.'" />'."\n");
                    821: 	$r->print ('<input type="hidden" name="acts" value="" />'."\n");
1.13      ng        822: 	$r->print ('<input src="'.$iconpath.'arrow_up.gif"');
1.131     albertel  823: 	$r->print (' name="'.$msg.'" height="22" type="image" border="0" />'.
1.17      harris41  824: 		   "\n");
1.135     www       825: 	$r->print(&mt("Up")."</form>$tabtag</tr>\n");
1.13      ng        826: 	return OK;
                    827:     }
1.97      www       828: # Do we have permission to look at this?
                    829: 
                    830:     if($filecom[15] ne '1') { return OK if (!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])); }
                    831: 
                    832: # make absolute links appear on different background
1.112     www       833:     if ($absolute) { $fileclr='#ccdd99'; }
1.17      harris41  834: 
                    835: # display domain
1.45      ng        836:     if ($filecom[1] eq 'domain') {
1.131     albertel  837:  	$r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n")
1.133     albertel  838:  	    if ($env{'form.dirPointer'} eq "on");
1.70      ng        839: 	$r->print("<tr valign='$valign' bgcolor=$fileclr>$extrafield");
                    840: 	$r->print("<td>");
1.73      albertel  841: 	&begin_form ($r,$filecom[0]);
                    842: 	my $anchor = $filecom[0];
1.3       harris41  843: 	$anchor =~ s/\///g;
1.13      ng        844: 	$r->print ('<a name="'.$anchor.'">');
1.131     albertel  845: 	$r->print ('<input type="hidden" name="acts" value="" />');
1.17      harris41  846: 	$r->print ('<input src="'.$iconpath.'folder_pointer_'.
                    847: 		   $diropen.'.gif"'); 
1.131     albertel  848: 	$r->print (' name="'.$msg.'" height="22" type="image" border="0" />'.
1.17      harris41  849: 		   "\n");
1.128     foxr      850: 	my $quotable_filecom = &Apache::loncommon::escape_single($filecom[0]);
1.125     foxr      851: 	$r->print ('<a href="javascript:gothere(\''.$quotable_filecom.
1.73      albertel  852: 		   '\')"><img src="'.$iconpath.'server.gif"');
1.17      harris41  853: 	$r->print (' border="0" /></a>'."\n");
1.77      www       854: 	$r->print (&mt("Domain")." - $listname ");
1.60      albertel  855: 	if ($Apache::lonnet::domaindescription{$listname}) {
                    856: 	    $r->print("(".$Apache::lonnet::domaindescription{$listname}.
                    857: 		      ")");
                    858: 	}
1.135     www       859: 	$r->print ("</form>$tabtag</tr>\n");
1.1       www       860: 	return OK;
1.17      harris41  861: 
                    862: # display user directory
1.1       www       863:     }
1.45      ng        864:     if ($filecom[1] eq 'user') {
1.70      ng        865: 	$r->print("<tr valign=$valign bgcolor=$fileclr>$extrafield");
                    866: 	$r->print("<td nowrap>\n");
1.2       harris41  867: 	my $curdir = $startdir.$filecom[0].'/';
1.3       harris41  868: 	my $anchor = $curdir;
                    869: 	$anchor =~ s/\///g;
1.13      ng        870: 	&begin_form ($r,$curdir);
1.17      harris41  871: 	$r->print ('<a name="'.$anchor.'"><img src="'.$iconpath.
                    872: 		   'whitespace1.gif" border="0" />'."\n");
1.131     albertel  873: 	$r->print ('<input type="hidden" name="acts" value="" />');
1.17      harris41  874: 	$r->print ('<input src="'.$iconpath.'folder_pointer_'.$diropen.
                    875: 		   '.gif"'); 
1.131     albertel  876: 	$r->print (' name="'.$msg.'" height="22" type="image" border="0" />'.
1.17      harris41  877: 		   "\n");
1.128     foxr      878: 	my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
1.125     foxr      879: 	$r->print ('<a href="javascript:gothere(\''.$quotable_curdir
                    880: 		   .'\')"><img src='.
1.17      harris41  881: 		   $iconpath.'quill.gif border="0" name="'.$msg.
                    882: 		   '" height="22" /></a>');
1.60      albertel  883: 	my $domain=(split(m|/|,$startdir))[2];
                    884: 	my $plainname=&Apache::loncommon::plainname($listname,$domain);
                    885: 	$r->print ($listname);
                    886: 	if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
1.131     albertel  887: 	$r->print ('</form>'.$tabtag.'</tr>'."\n");
1.1       www       888: 	return OK;
                    889:     }
1.17      harris41  890: 
1.1       www       891: # display file
1.97      www       892:     if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
                    893: 	my $filelink = $pathprefix.$filecom[0];
1.1       www       894: 	my @file_ext = split (/\./,$listname);
1.25      matthew   895: 	my $curfext = $file_ext[-1];
1.40      matthew   896:         if (@Omit) {
                    897:             foreach (@Omit) { return OK if ($curfext eq $_); }
                    898:         }
                    899:         if (@Only) {
                    900:             my $skip = 1;
                    901:             foreach (@Only) { $skip = 0 if ($curfext eq $_); }
                    902:             return OK if ($skip > 0);
                    903:         }
1.25      matthew   904: 	# Set the icon for the file
1.84      albertel  905: 	my $iconname = &Apache::loncommon::icon($listname);
1.131     albertel  906: 	$r->print("<tr valign='$valign' bgcolor=$fileclr><td nowrap='nowrap' valign='top'>");
1.104     albertel  907: 	
1.133     albertel  908:         if ($env{'form.catalogmode'} eq 'interactive') {
1.128     foxr      909: 	    my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
1.35      matthew   910:             $r->print("<a href=\"javascript:select_data(\'",
1.125     foxr      911:                       $quotable_filelink,"')\">");
1.17      harris41  912: 	    $r->print("<img src='",$iconpath,"select.gif' border='0' /></a>".
                    913: 		      "\n");
1.70      ng        914: 	    $r->print("</td><td nowrap>");
1.145     www       915: 	} elsif ($env{'form.catalogmode'} eq 'import') {
1.8       harris41  916: 	    $r->print("<form name='form$fnum'>\n");
                    917: 	    $r->print("<input type='checkbox' name='filelink"."' ".
1.16      harris41  918: 		      "value='$filelink' onClick='".
                    919: 		      "javascript:queue(\"form$fnum\")' ");
                    920: 	    if ($hash{'store_'.$filelink}) {
                    921: 		$r->print("checked");
                    922: 	    }
1.131     albertel  923: 	    $r->print(" />\n");
1.135     www       924: 	    $r->print("</form></td><td nowrap>");
1.16      harris41  925: 	    $hash{"pre_${fnum}_link"}=$filelink;
1.8       harris41  926:   	    $fnum++;
1.7       harris41  927: 	}
1.95      www       928: # Form to open or close sequences
                    929: 	if ($filelink=~/\.(page|sequence)$/) {
                    930: 	    my $curdir = $startdir.$filecom[0].'/';
                    931: 	    my $anchor = $curdir;
                    932: 	    $anchor =~ s/\///g;
                    933: 	    &begin_form($r,$curdir);
                    934: 	    $indent--;
                    935: 	}
                    936: # General indentation
1.12      ng        937: 	if ($indent > 0 and $indent < 11) {
1.17      harris41  938: 	    $r->print("<img src=",$iconpath,"whitespace",$indent,
                    939: 		      ".gif border='0' />\n");
1.11      ng        940: 	} elsif ($indent >0) {
1.4       harris41  941: 	    my $ten = int($indent/10.);
                    942: 	    my $rem = $indent%10.0;
                    943: 	    my $count = 0;
                    944: 	    while ($count < $ten) {
1.17      harris41  945: 		$r->print("<img src=",$iconpath,
                    946: 			  "whitespace10.gif border='0' />\n");
1.1       www       947: 	    $count++;
1.4       harris41  948: 	    }
1.17      harris41  949: 	    $r->print("<img src=",$iconpath,"whitespace",$rem,
                    950: 		      ".gif border='0' />\n") if $rem > 0;
1.1       www       951: 	}
1.95      www       952: # Sequence open/close icon
                    953: 	if ($filelink=~/\.(page|sequence)$/) {
                    954: 	    my $curdir = $startdir.$filecom[0].'/';
                    955: 	    my $anchor = $curdir;
                    956: 	    $anchor =~ s/\///g;
1.131     albertel  957: 	    $r->print ('<input type="hidden" name="acts" value="" />');
1.95      www       958: 	    $r->print ('<a name="'.$anchor.'"><input src="'.$iconpath.
                    959: 		       'folder_pointer_'.$diropen.'.gif"');
1.131     albertel  960: 	    $r->print (' name="'.$msg.'" height="22" type="image" border="0" />'.
1.95      www       961: 		       "\n");
                    962: 	}
                    963: # Filetype icons
1.84      albertel  964: 	$r->print("<img src='$iconname' border='0' />\n");
1.128     foxr      965: 	my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
1.125     foxr      966: 
                    967: 
                    968: 	$r->print (" <a href=\"javascript:openWindow('".$quotable_filelink.
1.69      www       969: 		   "', 'previewfile', '450', '500', 'no', 'yes','yes')\";".
1.17      harris41  970: 		   " TARGET=_self>$listname</a> ");
                    971: 
1.125     foxr      972: 	$r->print (" (<a href=\"javascript:openWindow('".$quotable_filelink.
1.71      ng        973: 		   ".meta', 'metadatafile', '500', '550', 'no', 'yes','no')\"; ".
1.104     albertel  974: 		   "TARGET=_self>metadata</a>) ");
1.134     www       975: # Close form to open/close sequence
                    976: 	if ($filelink=~/\.(page|sequence)$/) {
                    977: 	    $r->print('</form>');
                    978: 	}
1.7       harris41  979: 	$r->print("</td>\n");
1.45      ng        980: 	if ($hash{'display_attrs_0'} == 1) {
1.104     albertel  981: 	    my $title = &Apache::lonnet::gettitle($filelink,'title');
1.70      ng        982: 	    $r->print('<td> '.($title eq '' ? '&nbsp;' : $title).
1.45      ng        983: 		      ' </td>'."\n");
                    984: 	}
1.70      ng        985: 	$r->print('<td align=right> ',
1.17      harris41  986: 		  $filecom[8]," </td>\n") 
1.45      ng        987: 	    if $hash{'display_attrs_1'} == 1;
1.70      ng        988: 	$r->print('<td> '.
1.17      harris41  989: 		  (localtime($filecom[9]))." </td>\n") 
1.45      ng        990: 	    if $hash{'display_attrs_2'} == 1;
1.70      ng        991: 	$r->print('<td> '.
1.17      harris41  992: 		  (localtime($filecom[10]))." </td>\n") 
1.45      ng        993: 	    if $hash{'display_attrs_3'} == 1;
1.2       harris41  994: 
1.45      ng        995: 	if ($hash{'display_attrs_4'} == 1) {
1.104     albertel  996: 	    my $author = &Apache::lonnet::metadata($filelink,'author');
1.70      ng        997: 	    $r->print('<td> '.($author eq '' ? '&nbsp;' : $author).
1.17      harris41  998: 		      " </td>\n");
1.2       harris41  999: 	}
1.45      ng       1000: 	if ($hash{'display_attrs_5'} == 1) {
1.104     albertel 1001: 	    my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1.45      ng       1002: 	    # $keywords = '&nbsp;' if (!$keywords);
1.70      ng       1003: 	    $r->print('<td> '.($keywords eq '' ? '&nbsp;' : $keywords).
1.17      harris41 1004: 		      " </td>\n");
1.2       harris41 1005: 	}
1.109     taceyjo1 1006: #'
                   1007: 
1.45      ng       1008: 	if ($hash{'display_attrs_6'} == 1) {
1.104     albertel 1009: 	    my $lang = &Apache::lonnet::metadata($filelink,'language');
1.28      harris41 1010: 	    $lang = &Apache::loncommon::languagedescription($lang);
1.70      ng       1011: 	    $r->print('<td> '.($lang eq '' ? '&nbsp;' : $lang).
1.17      harris41 1012: 		      " </td>\n");
1.2       harris41 1013: 	}
1.70      ng       1014: 	if ($hash{'display_attrs_8'} == 1) {
1.111     www      1015: # statistics
1.117     www      1016: 	    &dynmetaread($filelink);
1.112     www      1017: 	    $r->print("<td>");
1.114     www      1018: 	    &dynmetaprint($r,$filelink,'count');
                   1019: 	    &dynmetaprint($r,$filelink,'course');
                   1020: 	    &dynmetaprint($r,$filelink,'stdno');
                   1021: 	    &dynmetaprint($r,$filelink,'avetries');
                   1022: 	    &dynmetaprint($r,$filelink,'difficulty');
                   1023: 	    &dynmetaprint($r,$filelink,'disc');
                   1024: 	    &dynmetaprint($r,$filelink,'clear');
                   1025: 	    &dynmetaprint($r,$filelink,'technical');
                   1026: 	    &dynmetaprint($r,$filelink,'correct');
                   1027: 	    &dynmetaprint($r,$filelink,'helpful');
                   1028: 	    &dynmetaprint($r,$filelink,'depth');
1.112     www      1029: 	    $r->print("&nbsp;</td>\n");
1.111     www      1030: 
1.70      ng       1031: 	}
1.109     taceyjo1 1032: 	if ($hash{'display_attrs_10'} == 1) {
                   1033: 	    my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
1.110     albertel 1034: 	    if($source eq 'open') {
1.119     taceyjo1 1035: 		my $sourcelink = &Apache::lonsource::make_link($filelink,$listname);
1.128     foxr     1036: 		my $quotable_sourcelink = &Apache::loncommon::escape_single($sourcelink);
1.125     foxr     1037: 		$r->print('<td>'."<a href=\"javascript:openWindow('"
                   1038: 			  .$quotable_sourcelink.
1.110     albertel 1039: 			  "', 'previewsource', '700', '700', 'no', 'yes','yes')\";".
                   1040: 			  " TARGET=_self>Yes</a> "."</td>\n");
                   1041: 	    } else { #A cuddled else. :P
1.111     www      1042: 		$r->print("<td>&nbsp;</td>\n");
1.110     albertel 1043: 	    }
1.109     taceyjo1 1044: 	}
1.111     www      1045: 	if ($hash{'display_attrs_11'} == 1) {
                   1046: # links
1.117     www      1047: 	   &dynmetaread($filelink);
1.113     www      1048: 	   $r->print('<td>');
                   1049: 	   &dynmetaprint($r,$filelink,'goto_list');
                   1050: 	   &dynmetaprint($r,$filelink,'comefrom_list');
                   1051: 	   &dynmetaprint($r,$filelink,'sequsage_list');
1.114     www      1052: 	   &dynmetaprint($r,$filelink,'dependencies');
1.139     www      1053:            &dynmetaprint($r,$filelink,'course_list');
1.113     www      1054: 	   $r->print('</td>');
1.114     www      1055:         }
1.115     www      1056:         if ($hash{'display_attrs_7'} == 1) {
                   1057: # Show resource
1.140     www      1058: 	   my $output=&showpreview($filelink);
                   1059:            $r->print('<td> '.($output eq '' ? '&nbsp;':$output).
1.115     www      1060: 		      " </td>\n");
                   1061:         }
1.1       www      1062: 	$r->print("</tr>\n");
                   1063:     }
1.17      harris41 1064: 
1.2       harris41 1065: # -- display directory
1.1       www      1066:     if ($fnptr == $dirptr) {
1.2       harris41 1067: 	my $curdir = $startdir.$filecom[0].'/';
1.3       harris41 1068: 	my $anchor = $curdir;
                   1069: 	$anchor =~ s/\///g;
1.63      ng       1070: 	$r->print("<tr bgcolor=$fileclr>$extrafield<td valign=$valign>");
1.2       harris41 1071: 	&begin_form ($r,$curdir);
1.4       harris41 1072: 	my $indentm1 = $indent-1;
1.11      ng       1073: 	if ($indentm1 < 11 and $indentm1 > 0) {
1.17      harris41 1074: 	    $r->print("<img src=",$iconpath,"whitespace",$indentm1,
                   1075: 		      ".gif border='0' />\n");
1.4       harris41 1076: 	} else {
                   1077: 	    my $ten = int($indentm1/10.);
                   1078: 	    my $rem = $indentm1%10.0;
                   1079: 	    my $count = 0;
                   1080: 	    while ($count < $ten) {
1.17      harris41 1081: 		$r->print ("<img src=",$iconpath
                   1082: 			   ,"whitespace10.gif border='0' />\n");
1.12      ng       1083: 		$count++;
1.4       harris41 1084: 	    }
1.17      harris41 1085: 	    $r->print ("<img src=",$iconpath,"whitespace",$rem,
                   1086: 		       ".gif border='0' />\n") if $rem > 0;
1.1       www      1087: 	}
1.131     albertel 1088: 	$r->print ('<input type="hidden" name="acts" value="" />');
1.17      harris41 1089: 	$r->print ('<a name="'.$anchor.'"><input src="'.$iconpath.
                   1090: 		   'folder_pointer_'.$diropen.'.gif"');
1.131     albertel 1091: 	$r->print (' name="'.$msg.'" height="22" type="image" border="0" />'.
1.17      harris41 1092: 		   "\n");
1.128     foxr     1093: 	my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
1.125     foxr     1094: 	$r->print ('<a href="javascript:gothere(\''
                   1095: 		   .$quotable_curdir.'\')"><img src="'.
1.17      harris41 1096: 		   $iconpath.'folder_'.$diropen.'.gif" border="0" /></a>'.
                   1097: 		   "\n");
1.86      www      1098: 	$r->print ("$listname</td>\n");
                   1099: # Attributes
                   1100: 	my $filelink = $startdir.$filecom[0].'/default';
                   1101: 
                   1102: 	if ($hash{'display_attrs_0'} == 1) {
                   1103: 	    my $title = &Apache::lonnet::gettitle($filelink,'title');
                   1104: 	    $r->print('<td> '.($title eq '' ? '&nbsp;' : $title).
                   1105: 		      ' </td>'."\n");
                   1106: 	}
                   1107: 	$r->print('<td align=right> ',
                   1108: 		  $filecom[8]," </td>\n") 
                   1109: 	    if $hash{'display_attrs_1'} == 1;
                   1110: 	$r->print('<td> '.
                   1111: 		  (localtime($filecom[9]))." </td>\n") 
                   1112: 	    if $hash{'display_attrs_2'} == 1;
                   1113: 	$r->print('<td> '.
                   1114: 		  (localtime($filecom[10]))." </td>\n") 
                   1115: 	    if $hash{'display_attrs_3'} == 1;
                   1116: 
                   1117: 	if ($hash{'display_attrs_4'} == 1) {
                   1118: 	    my $author = &Apache::lonnet::metadata($filelink,'author');
                   1119: 	    $r->print('<td> '.($author eq '' ? '&nbsp;' : $author).
                   1120: 		      " </td>\n");
                   1121: 	}
                   1122: 	if ($hash{'display_attrs_5'} == 1) {
                   1123: 	    my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
                   1124: 	    # $keywords = '&nbsp;' if (!$keywords);
                   1125: 	    $r->print('<td> '.($keywords eq '' ? '&nbsp;' : $keywords).
                   1126: 		      " </td>\n");
                   1127: 	}
                   1128: 	if ($hash{'display_attrs_6'} == 1) {
                   1129: 	    my $lang = &Apache::lonnet::metadata($filelink,'language');
                   1130: 	    $lang = &Apache::loncommon::languagedescription($lang);
                   1131: 	    $r->print('<td> '.($lang eq '' ? '&nbsp;' : $lang).
                   1132: 		      " </td>\n");
                   1133: 	}
                   1134: 	if ($hash{'display_attrs_8'} == 1) {
                   1135: 	   $r->print('<td>&nbsp;</td>');
                   1136: 	}
1.115     www      1137:  	if ($hash{'display_attrs_10'} == 1) {
1.109     taceyjo1 1138: 	   $r->print('<td>&nbsp;</td>');
                   1139: 	}
1.111     www      1140: 	if ($hash{'display_attrs_11'} == 1) {
                   1141: 	   $r->print('<td>&nbsp;</td>');
                   1142: 	}
1.115     www      1143: 	if ($hash{'display_attrs_7'} == 1) {
                   1144: 	   $r->print('<td>&nbsp;</td>');
                   1145:         }
1.86      www      1146: 	$r->print('</form></tr>');
1.1       www      1147:     }
1.2       harris41 1148: 
1.1       www      1149: }
                   1150: 
1.140     www      1151: sub showpreview {
                   1152:     my ($filelink)=@_;
                   1153:     my ($curfext)=($filelink=~/\.(\w+)$/);
                   1154:     my $output='';
                   1155:     my $embstyle=&Apache::loncommon::fileembstyle($curfext);
                   1156:     if ($embstyle eq 'ssi') {
                   1157:        my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
                   1158:                     '.tmp';
                   1159:        if ((!$env{'form.updatedisplay'}) &&
                   1160:                     (-e $cache)) {
                   1161:           open(FH,$cache);
                   1162:           $output=join("\n",<FH>);
                   1163:           close(FH);
                   1164:        } else {
                   1165:           $output=&Apache::lonnet::ssi_body($filelink);
1.146   ! www      1166: # Is access denied? Don't render, don't store
1.140     www      1167:           if ($output=~/LONCAPAACCESSCONTROLERRORSCREEN/s) {
                   1168:              $output='';
1.146   ! www      1169: # Was this rendered in course content? Don't store
        !          1170:           } elsif (!&Apache::lonnet::symbread($filelink)) {
1.140     www      1171:              open(FH,">$cache");
                   1172:              print FH $output;
                   1173:              close(FH);
                   1174:           }
                   1175:        }
                   1176:        $output='<font size="-2">'.$output.'</font>';
                   1177:     } elsif ($embstyle eq 'img') {
                   1178:        $output='<img src="'.$filelink.'" />';
                   1179:     } elsif ($filelink=~/^\/res\/(\w+)\/(\w+)\//) {
                   1180:        $output='<img src="http://'.
                   1181:                  $Apache::lonnet::hostname{&Apache::lonnet::homeserver($2,$1)}.
                   1182:                  '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
                   1183:     }
                   1184:     return $output;
                   1185: }
                   1186: 
1.113     www      1187: sub dynmetaprint {
                   1188:     my ($r,$filelink,$item)=@_;
                   1189:     if ($dynhash{$filelink}->{$item}) {
1.114     www      1190: 	$r->print("\n<br />".$fieldnames{$item}.': '.
1.113     www      1191: 		  &Apache::lonmeta::prettyprint($item,
                   1192: 						$dynhash{$filelink}->{$item},
1.145     www      1193: 		  (($env{'form.catalogmode'} ne 'import')?'preview':''),
1.113     www      1194: 		  '',
1.145     www      1195: 		  (($env{'form.catalogmode'} eq 'import')?'document.forms.fileattr':''),1));
1.113     www      1196:     }
                   1197: }
                   1198: 
1.14      harris41 1199: # ------------------- prints the beginning of a form for directory or file link
1.1       www      1200: sub begin_form {
                   1201:     my ($r,$uri) = @_;
1.3       harris41 1202:     my $anchor = $uri;
                   1203:     $anchor =~ s/\///g;
1.17      harris41 1204:     $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
                   1205: 	       '#'.$anchor.
                   1206: 	       '" onSubmit="return rep_dirpath(\''.$dnum.'\''.
                   1207: 	       ',document.forms.fileattr.acts.value)" '.
1.16      harris41 1208: 	       'enctype="application/x-www-form-urlencoded">'."\n");
1.131     albertel 1209:     $r->print ('<input type="hidden" name="openuri" value="'.$uri.'" />'.
1.17      harris41 1210: 	       "\n");
1.131     albertel 1211:     $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n");
1.16      harris41 1212:     $dnum++;
1.17      harris41 1213: }
                   1214: 
                   1215: # --------- settings whenever the user causes the indexer window to be launched
                   1216: sub start_fresh_session {
1.48      matthew  1217:     delete $hash{'form.catalogmode'};
                   1218:     delete $hash{'form.mode'};
                   1219:     delete $hash{'form.form'};
                   1220:     delete $hash{'form.element'};
                   1221:     delete $hash{'form.omit'};
                   1222:     delete $hash{'form.only'};
1.27      harris41 1223:     foreach (keys %hash) {
1.48      matthew  1224:         delete $hash{$_} if (/^(pre_|store)/);
1.27      harris41 1225:     }
1.1       www      1226: }
                   1227: 
1.35      matthew  1228: # ------------------------------------------------------------------- setvalues
                   1229: sub setvalues {
                   1230:     # setvalues is used in registerurl to synchronize the database
                   1231:     # hash and environment hashes
                   1232:     my ($H1,$h1key,$H2,$h2key) =@_;
                   1233:     #
                   1234:     if (exists $H2->{$h2key}) {
                   1235: 	$H1->{$h1key} = $H2->{$h2key};
                   1236:     } elsif (exists $H1->{$h1key}) {
                   1237: 	$H2->{$h2key} = $H1->{$h1key};
                   1238:     } 
                   1239: }
                   1240: 
1.1       www      1241: 1;
1.54      www      1242: 
                   1243: sub cleanup {
1.55      www      1244:     if (tied(%hash)){
                   1245: 	&Apache::lonnet::logthis('Cleanup indexer: hash');
                   1246:     }
1.138     albertel 1247:     return OK;
1.54      www      1248: }
1.23      harris41 1249: 
1.126     foxr     1250: 
                   1251: 
                   1252: 
                   1253: 
1.23      harris41 1254: =head1 NAME
                   1255: 
                   1256: Apache::lonindexer - mod_perl module for cross server filesystem browsing
                   1257: 
                   1258: =head1 SYNOPSIS
                   1259: 
                   1260: Invoked by /etc/httpd/conf/srm.conf:
                   1261: 
                   1262:  <LocationMatch "^/res.*/$">
                   1263:  SetHandler perl-script
                   1264:  PerlHandler Apache::lonindexer
                   1265:  </LocationMatch>
                   1266: 
                   1267: =head1 INTRODUCTION
                   1268: 
                   1269: This module enables a scheme of browsing across a cross server.
                   1270: 
                   1271: This is part of the LearningOnline Network with CAPA project
                   1272: described at http://www.lon-capa.org.
                   1273: 
                   1274: =head1 BEGIN SUBROUTINE
                   1275: 
                   1276: This routine is only run once after compilation.
                   1277: 
                   1278: =over 4
                   1279: 
                   1280: =item *
                   1281: 
                   1282: Initializes %language hash table.
                   1283: 
                   1284: =back
                   1285: 
                   1286: =head1 HANDLER SUBROUTINE
                   1287: 
                   1288: This routine is called by Apache and mod_perl.
                   1289: 
                   1290: =over 4
                   1291: 
                   1292: =item *
                   1293: 
                   1294: read in machine configuration variables
                   1295: 
                   1296: =item *
                   1297: 
                   1298: see if called from an interactive mode
                   1299: 
                   1300: =item *
                   1301: 
                   1302: refresh environment with user database values (in %hash)
                   1303: 
                   1304: =item *
                   1305: 
                   1306: define extra fields and buttons in case of special mode
                   1307: 
                   1308: =item *
                   1309: 
                   1310: set catalogmodefunctions to have extra needed javascript functionality
                   1311: 
                   1312: =item *
                   1313: 
                   1314: print header
                   1315: 
                   1316: =item *
                   1317: 
                   1318: evaluate actions from previous page (both cumulatively and chronologically)
                   1319: 
                   1320: =item *
                   1321: 
                   1322: output title
                   1323: 
                   1324: =item *
                   1325: 
                   1326: get state of file attributes to be showing
                   1327: 
                   1328: =item *
                   1329: 
                   1330: output state of file attributes to be showing
                   1331: 
                   1332: =item *
                   1333: 
                   1334: output starting row to the indexed file/directory hierarchy
                   1335: 
                   1336: =item *
                   1337: 
                   1338: read in what directories have previously been set to "open"
                   1339: 
                   1340: =item *
                   1341: 
                   1342: if not at top level, provide an uplink arrow
                   1343: 
                   1344: =item *
                   1345: 
                   1346: recursively go through all the directories and output as appropriate
                   1347: 
                   1348: =item *
                   1349: 
                   1350: information useful for group import
                   1351: 
                   1352: =item *
                   1353: 
                   1354: end the tables
                   1355: 
                   1356: =item *
                   1357: 
                   1358: end the output and return
                   1359: 
                   1360: =back
                   1361: 
                   1362: =head1 OTHER SUBROUTINES
                   1363: 
                   1364: =over 4
                   1365: 
                   1366: =item *
                   1367: 
                   1368: scanDir - recursive scan of a directory
                   1369: 
                   1370: =item *
                   1371: 
                   1372: get_list - get complete matched list based on the uri (returns an array)
                   1373: 
                   1374: =item *
                   1375: 
                   1376: match_ext - filters out files based on extensions (returns an array)
                   1377: 
                   1378: =item *
                   1379: 
                   1380: display_line - displays one line in appropriate table format
                   1381: 
                   1382: =item *
                   1383: 
                   1384: begin_form - prints the beginning of a form for directory or file link
                   1385: 
                   1386: =item *
                   1387: 
                   1388: start_fresh_session - settings whenever the user causes the indexer window
                   1389: to be launched
                   1390: 
                   1391: =back
                   1392: 
                   1393: =cut

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