1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.100 2004/05/04 20:43:21 www 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: ###
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: ###############################################################################
42:
43: package Apache::lonindexer;
44:
45: # ------------------------------------------------- modules used by this module
46: use strict;
47: use Apache::lonnet();
48: use Apache::loncommon();
49: use Apache::lonhtmlcommon();
50: use Apache::lonsequence();
51: use Apache::Constants qw(:common);
52: use Apache::lonmeta;
53: use Apache::File;
54: use Apache::lonlocal;
55: use GDBM_File;
56:
57: # ---------------------------------------- variables used throughout the module
58: my %hash; # global user-specific gdbm file
59: my %dirs; # keys are directories, values are the open/close status
60: my %language; # has the reference information present in language.tab
61:
62: # ----- Values which are set by the handler subroutine and are accessible to
63: # ----- other methods.
64: my $extrafield; # default extra table cell
65: my $fnum; # file counter
66: my $dnum; # directory counter
67:
68: # ----- Used to include or exclude files with certain extensions.
69: my @Only = ();
70: my @Omit = ();
71:
72:
73: # ----------------------------- Handling routine called via Apache and mod_perl
74: sub handler {
75: my $r = shift;
76: my $c = $r->connection();
77: &Apache::loncommon::content_type($r,'text/html');
78: &Apache::loncommon::no_cache($r);
79: $r->send_http_header;
80: return OK if $r->header_only;
81: $fnum=0;
82: $dnum=0;
83:
84: # Deal with stupid global variables (is there a way around making
85: # these global to this package? It is just so wrong....)
86: undef (@Only);
87: undef (@Omit);
88:
89: # ------------------------------------- read in machine configuration variables
90: my $iconpath= $r->dir_config('lonIconsURL') . "/";
91: my $domain = $r->dir_config('lonDefDomain');
92: my $role = $r->dir_config('lonRole');
93: my $loadlim = $r->dir_config('lonLoadLim');
94: my $servadm = $r->dir_config('lonAdmEMail');
95: my $sysadm = $r->dir_config('lonSysEMail');
96: my $lonhost = $r->dir_config('lonHostID');
97: my $tabdir = $r->dir_config('lonTabDir');
98:
99: my $fileclr='#ffffe6';
100: my $line;
101: my (@attrchk,@openpath);
102: my $uri=$r->uri;
103:
104: # -------------------------------------- see if called from an interactive mode
105: # Get the parameters from the query string
106: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
107: ['catalogmode','launch','acts','mode','form','element',
108: 'only','omit','titleelement']);
109: #-------------------------------------------------------------------
110: my $closebutton='';
111: my $groupimportbutton='';
112: my $colspan='';
113:
114: $extrafield='';
115: my $diropendb =
116: "/home/httpd/perl/tmp/$ENV{'user.domain'}_$ENV{'user.name'}_indexer.db";
117: %hash = ();
118: {
119: my %dbfile;
120: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_READER(),0640)) {
121: while(my($key,$value)=each(%dbfile)) {
122: $hash{$key}=$value;
123: }
124: untie(%dbfile);
125: }
126: }
127: {
128: if ($ENV{'form.launch'} eq '1') {
129: &start_fresh_session();
130: }
131: # -------------------- refresh environment with user database values (in %hash)
132: &setvalues(\%hash,'form.catalogmode',\%ENV,'form.catalogmode' );
133:
134: # --------------------- define extra fields and buttons in case of special mode
135: if ($ENV{'form.catalogmode'} eq 'interactive') {
136: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
137: '<a name="$anchor"><img src="'.$iconpath.'whitespace1.gif"'.
138: ' border="0" /></td>';
139: $colspan=" colspan='2' ";
140: my $cl=&mt('Close');
141: $closebutton=<<END;
142: <input type="button" name="close" value='$cl' onClick="self.close()">
143: END
144: }
145: elsif ($ENV{'form.catalogmode'} eq 'groupimport') {
146: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
147: '<a name="$anchor"><img src="'.$iconpath.'whitespace1.gif"'.
148: ' border="0" /></td>';
149: $colspan=" colspan='2' ";
150: my $cl=&mt('Close');
151: my $gi=&mt('Group Import');
152: $closebutton=<<END;
153: <input type="button" name="close" value='$cl' onClick="self.close()">
154: END
155: $groupimportbutton=<<END;
156: <input type="button" name="groupimport" value='$gi'
157: onClick="javascript:select_group()">
158: END
159: }
160: # Additions made by Matthew to make the browser a little easier to deal
161: # with in the future.
162: #
163: # $mode (at this time) indicates if we are in edit mode.
164: # $form is the name of the form that the URL is placed when the
165: # selection is made.
166: # $element is the name of the element in $formname which receives
167: # the URL.
168: #&Apache::lonxml::debug('Checking mode, form, element');
169: &setvalues(\%hash,'form.mode' ,\%ENV,'form.mode' );
170: &setvalues(\%hash,'form.form' ,\%ENV,'form.form' );
171: &setvalues(\%hash,'form.element' ,\%ENV,'form.element');
172: &setvalues(\%hash,'form.titleelement',\%ENV,'form.titleelement');
173: &setvalues(\%hash,'form.only' ,\%ENV,'form.only' );
174: &setvalues(\%hash,'form.omit' ,\%ENV,'form.omit' );
175:
176: # Deal with 'omit' and 'only'
177: if (exists $ENV{'form.omit'}) {
178: @Omit = split(',',$ENV{'form.omit'});
179: }
180: if (exists $ENV{'form.only'}) {
181: @Only = split(',',$ENV{'form.only'});
182: }
183:
184: my $mode = $ENV{'form.mode'};
185: my ($form,$element,$titleelement);
186: if ($mode eq 'edit' || $mode eq 'parmset') {
187: $form = $ENV{'form.form'};
188: $element = $ENV{'form.element'};
189: $titleelement = $ENV{'form.titleelement'};
190: }
191: #&Apache::lonxml::debug("mode=$mode form=$form element=$element titleelement=$titleelement");
192: # ------ set catalogmodefunctions to have extra needed javascript functionality
193: my $catalogmodefunctions='';
194: if ($ENV{'form.catalogmode'} eq 'interactive' or
195: $ENV{'form.catalogmode'} eq 'groupimport') {
196: # The if statement below sets us up to use the old version
197: # by default (ie. if $mode is undefined). This is the easy
198: # way out. Hopefully in the future I'll find a way to get
199: # the calls dealt with in a more comprehensive manner.
200:
201: #
202: # There is now also mode "simple", which is for the simple version of the rat
203: #
204: #
205: if (!defined($mode) || ($mode ne 'edit' && $mode ne 'parmset')) {
206: my $location = "/adm/groupsort?catalogmode=groupimport&";
207: $location .= "mode=".$mode."&";
208: $location .= "acts=";
209: $catalogmodefunctions=<<"END";
210: function select_data(title,url) {
211: changeTitle(title);
212: changeURL(url);
213: self.close();
214: }
215: function select_group() {
216: window.location="$location"+document.forms.fileattr.acts.value;
217: }
218: function changeTitle(val) {
219: if (opener.inf) {
220: if (opener.inf.document.forms.resinfo.elements.t) {
221: opener.inf.document.forms.resinfo.elements.t.value=val;
222: }
223: }
224: }
225: function changeURL(val) {
226: if (opener.inf) {
227: if (opener.inf.document.forms.resinfo.elements.u) {
228: opener.inf.document.forms.resinfo.elements.u.value=val;
229: }
230: }
231: }
232: END
233: } elsif ($mode eq 'edit') { # we are in 'edit' mode
234: my $location = "/adm/groupsort?catalogmode=interactive&";
235: $location .= "form=$form&element=$element&mode=edit&acts=";
236: $catalogmodefunctions=<<END;
237: // mode = $mode
238: function select_data(title,url) {
239: changeURL(url);
240: changeTitle(title);
241: self.close();
242: }
243:
244: function select_group() {
245: window.location="$location"+document.forms.fileattr.acts.value;
246: }
247:
248: function changeURL(val) {
249: if (window.opener.document) {
250: window.opener.document.forms["$form"].elements["$element"].value=val;
251: } else {
252: alert("The file you selected is: "+val);
253: }
254: }
255: END
256: if (!$titleelement) {
257: $catalogmodefunctions.='function changeTitle(val) {}';
258: } else {
259: $catalogmodefunctions.=<<END;
260: function changeTitle(val) {
261: if (window.opener.document) {
262: window.opener.document.forms["$form"].elements["$titleelement"].value=val;
263: } else {
264: alert("The title of the file you selected is: "+val);
265: }
266: }
267: END
268: }
269: } elsif ($mode eq 'parmset') {
270: my $location = "/adm/groupsort?catalogmode=interactive&";
271: $location .= "form=$form&element=$element&mode=parmset&acts=";
272: $catalogmodefunctions=<<END;
273: // mode = $mode
274: function select_data(title,url) {
275: changeURL(url);
276: self.close();
277: }
278:
279: function select_group() {
280: window.location="$location"+document.forms.fileattr.acts.value;
281: }
282:
283: function changeURL(val) {
284: if (window.opener.document) {
285: var elementname = "$element"+"_value";
286: var checkboxname = "$element"+"_setparmval";
287: window.opener.document.forms["$form"].elements[elementname].value=val;
288: window.opener.document.forms["$form"].elements[checkboxname].checked=true;
289: } else {
290: alert("The file you selected is: "+val);
291: }
292: }
293:
294: END
295: }
296: }
297: $catalogmodefunctions.=<<END;
298: var acts='';
299: function rep_dirpath(suffix,val) {
300: eval("document.forms.dirpath"+suffix+".acts.value=val");
301: }
302: END
303: if ($ENV{'form.catalogmode'} eq 'groupimport') {
304: $catalogmodefunctions.=<<END;
305: function queue(val) {
306: if (eval("document.forms."+val+".filelink.checked")) {
307: var l=val.length;
308: var v=val.substring(4,l);
309: document.forms.fileattr.acts.value+='1a'+v+'b';
310: }
311: else {
312: var l=val.length;
313: var v=val.substring(4,l);
314: document.forms.fileattr.acts.value+='0a'+v+'b';
315: }
316: }
317: END
318: }
319:
320: # ---------------------------------------------------------------- Print Header
321: $r->print(<<ENDHEADER);
322: <html>
323: <head>
324: <title>The LearningOnline Network With CAPA Directory Browser</title>
325:
326: <script type="text/javascript">
327: $catalogmodefunctions
328: function openWindow(url, wdwName, w, h, toolbar,scrollbar,locationbar) {
329: var xpos = (screen.width-w)/2;
330: xpos = (xpos < 0) ? '0' : xpos;
331: var ypos = (screen.height-h)/2-30;
332: ypos = (ypos < 0) ? '0' : ypos;
333: var options = "width=" + w + ",height=" + h + ",screenx="+xpos+",screeny="+ypos+",";
334: options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
335: options += "menubar=no,toolbar="+toolbar+",location="+locationbar+",directories=no";
336: var newWin = window.open(url, wdwName, options);
337: newWin.focus();
338: }
339: function gothere(val) {
340: window.location=val+'?acts='+document.forms.fileattr.acts.value;
341: }
342: </script>
343:
344: </head>
345: ENDHEADER
346: my ($headerdom)=($uri=~/^\/res\/(\w+)\//);
347: $r->print(&Apache::loncommon::bodytag('Browse Resources',undef,undef,undef,
348: $headerdom));
349: # - Evaluate actions from previous page (both cumulatively and chronologically)
350: if ($ENV{'form.catalogmode'} eq 'groupimport') {
351: my $acts=$ENV{'form.acts'};
352: my @Acts=split(/b/,$acts);
353: my %ahash;
354: my %achash;
355: my $ac=0;
356: # some initial hashes for working with data
357: foreach (@Acts) {
358: my ($state,$ref)=split(/a/);
359: $ahash{$ref}=$state;
360: $achash{$ref}=$ac;
361: $ac++;
362: }
363: # sorting through the actions and changing the global database hash
364: foreach (sort {$achash{$a}<=>$achash{$b}} (keys %ahash)) {
365: my $key=$_;
366: if ($ahash{$key} eq '1') {
367: $hash{'store_'.$hash{'pre_'.$key.'_link'}}=
368: $hash{'pre_'.$key.'_title'};
369: $hash{'storectr_'.$hash{'pre_'.$key.'_link'}}=
370: $hash{'storectr'}+0;
371: $hash{'storectr'}++;
372: }
373: if ($ahash{$key} eq '0') {
374: if ($hash{'store_'.$hash{'pre_'.$key.'_link'}}) {
375: delete $hash{'store_'.$hash{'pre_'.$key.'_link'}};
376: }
377: }
378: }
379: # deleting the previously cached listing
380: foreach (keys %hash) {
381: if ($_ =~ /^pre_/ && $_ =~/link$/) {
382: my $key = $_;
383: $key =~ s/^pre_//;
384: $key =~ s/_[^_]*$//;
385: delete $hash{'pre_'.$key.'_title'};
386: delete $hash{'pre_'.$key.'_link'};
387: }
388: }
389: }
390:
391: # ---------------------------------- get state of file attributes to be showing
392: if ($ENV{'form.attrs'}) {
393: for (my $i=0; $i<=9; $i++) {
394: delete $hash{'display_attrs_'.$i};
395: if ($ENV{'form.attr'.$i} == 1) {
396: $attrchk[$i] = 'checked';
397: $hash{'display_attrs_'.$i} = 1;
398: }
399: }
400: } else {
401: for (my $i=0; $i<=9; $i++) {
402: $attrchk[$i] = 'checked' if $hash{'display_attrs_'.$i} == 1;
403: }
404: }
405:
406: # ------------------------------- output state of file attributes to be showing
407: # All versions has to the last item
408: # since it does not take an extra col
409: my %lt=&Apache::lonlocal::texthash(
410: 'ti' => 'Title',
411: 'si' => 'Size',
412: 'la' => 'Last access',
413: 'lm' => 'Last modified',
414: 'st' => 'Statistics',
415: 'au' => 'Author',
416: 'kw' => 'Keywords',
417: 'ln' => 'Language',
418: 'sr' => 'Show resource',
419: 'av' => 'All versions',
420: 'ud' => 'Update Display'
421: );
422: my $Displayfileattributes=&mt('Display file attributes');
423: $r->print(<<END);
424: <form method="post" name="fileattr" action="$uri"
425: enctype="application/x-www-form-urlencoded">
426: <b><font color="#666666">$Displayfileattributes</font></b><br />
427: <table border=0><tr>
428: <td><input type="checkbox" name="attr0" value="1" $attrchk[0] onClick="this.form.submit();" /> $lt{'ti'}</td>
429: <td><input type="checkbox" name="attr1" value="1" $attrchk[1] onClick="this.form.submit();" /> $lt{'si'}</td>
430: <td><input type="checkbox" name="attr2" value="1" $attrchk[2] onClick="this.form.submit();" /> $lt{'la'}</td>
431: <td><input type="checkbox" name="attr3" value="1" $attrchk[3] onClick="this.form.submit();" /> $lt{'lm'}</td>
432: <td><input type="checkbox" name="attr8" value="1" $attrchk[8] onClick="this.form.submit();" /> $lt{'st'}</td>
433: </tr><tr>
434: <td><input type="checkbox" name="attr4" value="1" $attrchk[4] onClick="this.form.submit();" /> $lt{'au'}</td>
435: <td><input type="checkbox" name="attr5" value="1" $attrchk[5] onClick="this.form.submit();" /> $lt{'kw'}</td>
436: <td><input type="checkbox" name="attr6" value="1" $attrchk[6] onClick="this.form.submit();" /> $lt{'ln'}</td>
437: <td><input type="checkbox" name="attr7" value="1" $attrchk[7] onClick="this.form.submit();" /> $lt{'sr'}</td>
438: <td><input type="checkbox" name="attr9" value="1" $attrchk[9] onClick="this.form.submit();" /> $lt{'av'}</td>
439: <td> </td>
440: </tr></table>
441: <input type="hidden" name="attrs" value="1" />
442: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
443: <input type="hidden" name="acts" value="" />
444: $closebutton $groupimportbutton
445: END
446: # -------------- Filter out sequence containment in crumbs and "recent folders"
447: my $storeuri=$uri;
448: $storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
449: $storeuri=~s/\/+/\//g;
450: # ---------------------------------------------------------------- Bread crumbs
451: $r->print(&Apache::lonhtmlcommon::crumbs($storeuri,'','',
452: (($ENV{'form.catalogmode'} eq 'groupimport')?
453: 'document.forms.fileattr':'')).
454: &Apache::lonhtmlcommon::select_recent('residx','resrecent',
455: 'this.form.action=this.form.resrecent.options[this.form.resrecent.selectedIndex].value;this.form.submit();'));
456: # -------------------------------------------------------- Resource Home Button
457: my $reshome=$ENV{'course.'.$ENV{'request.course.id'}.'.reshome'};
458: if ($reshome) {
459: $r->print("<font size='+2'><a href='");
460: if ($ENV{'form.catalogmode'} eq 'groupimport') {
461: $r->print('javascript:document.forms.fileattr.action="'.$reshome.'";document.forms.fileattr.submit();');
462: } else {
463: $r->print($reshome);
464: }
465: $r->print("'>".&mt('Home').'</a></font>');
466: }
467: $r->print('</form>');
468: # ------------------------------------------------------ Remember where we were
469: &Apache::loncommon::storeresurl($storeuri);
470: &Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
471: # ----------------- output starting row to the indexed file/directory hierarchy
472: my $titleclr="#ddffff";
473: # $r->print(&initdebug());
474: # $r->print(&writedebug("Omit:@Omit")) if (@Omit);
475: # $r->print(&writedebug("Only:@Only")) if (@Only);
476: $r->print("<table width='100\%' border=0><tr><td bgcolor=#777777>\n");
477: $r->print("<table width='100\%' border=0><tr bgcolor=$titleclr>\n");
478: $r->print("<td $colspan><b>".&mt('Name')."</b></td>\n");
479: $r->print("<td><b>".&mt('Title')."</b></td>\n")
480: if ($hash{'display_attrs_0'} == 1);
481: $r->print("<td align=right><b>".&mt("Size")." (".&mt("bytes").") ".
482: "</b></td>\n") if ($hash{'display_attrs_1'} == 1);
483: $r->print("<td><b>".&mt("Last accessed")."</b></td>\n")
484: if ($hash{'display_attrs_2'} == 1);
485: $r->print("<td><b>".&mt("Last modified")."</b></td>\n")
486: if ($hash{'display_attrs_3'} == 1);
487: $r->print("<td><b>".&mt("Author(s)")."</b></td>\n")
488: if ($hash{'display_attrs_4'} == 1);
489: $r->print("<td><b>".&mt("Keywords")."</b></td>\n")
490: if ($hash{'display_attrs_5'} == 1);
491: $r->print("<td><b>".&mt("Language")."</b></td>\n")
492: if ($hash{'display_attrs_6'} == 1);
493: $r->print("<td><b>".&mt("Resource")."</b></td>\n")
494: if ($hash{'display_attrs_7'} == 1);
495: $r->print("<td><b>".&mt("Usage Statistics")." <br />(".
496: &mt("Courses/Network Hits").")</b></td>\n")
497: if ($hash{'display_attrs_8'} == 1);
498: $r->print('</tr>');
499:
500: # ----------------- read in what directories have previously been set to "open"
501: foreach (keys %hash) {
502: if ($_ =~ /^diropen_status_/) {
503: my $key = $_;
504: $key =~ s/^diropen_status_//;
505: $dirs{$key} = $hash{$_};
506: }
507: }
508:
509: if ($ENV{'form.openuri'}) { # take care of review and refresh options
510: my $uri=$ENV{'form.openuri'};
511: if (exists($hash{'diropen_status_'.$uri})) {
512: my $cursta = $hash{'diropen_status_'.$uri};
513: $dirs{$uri} = 'open';
514: $hash{'diropen_status_'.$uri} = 'open';
515: if ($cursta eq 'open') {
516: $dirs{$uri} = 'closed';
517: $hash{'diropen_status_'.$uri} = 'closed';
518: }
519: } else {
520: $hash{'diropen_status_'.$uri} = 'open';
521: $dirs{$uri} = 'open';
522: }
523: }
524:
525: my $toplevel;
526: my $indent = 0;
527: $uri = $uri.'/' if $uri !~ /.*\/$/;
528:
529: if ($ENV{'form.dirPointer'} ne 'on') {
530: $hash{'top.level'} = $uri;
531: $toplevel = $uri;
532: } else {
533: $toplevel = $hash{'top.level'};
534: }
535:
536: # -------------------------------- if not at top level, provide an uplink arrow
537: if ($toplevel ne '/res/'){
538: my (@uri_com) = split(/\//,$uri);
539: pop @uri_com;
540: my $upone = join('/',@uri_com);
541: my @list = qw (0);
542: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
543: $indent = 1;
544: }
545:
546: # -------- recursively go through all the directories and output as appropriate
547: &scanDir ($r,$toplevel,$indent,\%hash);
548:
549: # ---------------------------- embed hidden information useful for group import
550: $r->print("<form name='fnum'>");
551: $r->print("<input type='hidden' name='fnum' value='$fnum'></form>");
552:
553: # -------------------------------------------------------------- end the tables
554: $r->print('</table>');
555: $r->print('</td></tr></table>');
556:
557: # --------------------------------------------------- end the output and return
558: $r->print('</body></html>'."\n");
559: }
560: if(! $c->aborted()) {
561: # write back into the temporary file
562: my %dbfile;
563: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
564: while (my($key,$value) = each(%hash)) {
565: $dbfile{$key}=$value;
566: }
567: untie(%dbfile);
568: }
569: }
570:
571: return OK;
572: }
573:
574: # ----------------------------------------------- recursive scan of a directory
575: sub scanDir {
576: my ($r,$startdir,$indent,$hashref)=@_;
577: my $c = $r->connection();
578: my ($compuri,$curdir);
579: my $dirptr=16384;
580: my $obs;
581: $indent++;
582: my %dupdirs = %dirs;
583: my @list=&get_list($r,$startdir);
584: foreach my $line (@list) {
585: return if ($c->aborted());
586: #This is a kludge, sorry aboot this
587: my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
588: next if($strip =~ /.*\.meta$/ | $obs eq '1');
589: my (@fileparts) = split(/\./,$strip);
590: if ($hash{'display_attrs_9'} != 1) {
591: # if not all versions to be shown
592: if (scalar(@fileparts) >= 3) {
593: my $fext = pop @fileparts;
594: my $ov = pop @fileparts;
595: my $fname = join ('.',@fileparts,$fext);
596: next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
597: }
598: }
599:
600: if ($dom eq 'domain') {
601: # dom list has full path /res/<domain name>/ already
602: $curdir='';
603: $compuri = (split(/\&/,$line))[0];
604: } else {
605: # user, dir & file have name only, i.e., w/o path
606: $compuri = join('',$startdir,$strip,'/');
607: $curdir = $startdir;
608: }
609: my $diropen = 'closed';
610: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
611: while (my ($key,$val)= each %dupdirs) {
612: if ($key eq $compuri and $val eq "open") {
613: $diropen = "opened";
614: delete($dupdirs{$key});
615: delete($dirs{$key});
616: }
617: }
618: }
619: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
620: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
621: }
622: $indent--;
623: }
624:
625: # --------------- get complete matched list based on the uri (returns an array)
626: sub get_list {
627: my ($r,$uri)=@_;
628: my @list=();
629: (my $luri = $uri) =~ s/\//_/g;
630: if ($ENV{'form.updatedisplay'}) {
631: foreach (keys %hash) {
632: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
633: }
634: }
635:
636: if ($hash{'dirlist_files_'.$luri}) {
637: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
638: } elsif ($uri=~/\.(page|sequence)\/$/) {
639: # is a page or a sequence
640: $uri=~s/\/$//;
641: $uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
642: $uri=~s/\/+/\//g;
643: foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
644: my @ratpart=split(/\:/,$_);
645: push @list,$ratpart[1];
646: }
647: $hash{'dirlist_files_'.$luri} = join("\n",@list);
648: } else {
649: # is really a directory
650: @list = &Apache::lonnet::dirlist($uri);
651: $hash{'dirlist_files_'.$luri} = join("\n",@list);
652: }
653: return @list=&match_ext($r,@list);
654: }
655:
656: sub initdebug {
657: return <<ENDJS;
658: <script>
659: var debugging = true;
660: if (debugging) {
661: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
662: }
663:
664: function output(text) {
665: if (debugging) {
666: debuggingWindow.document.writeln(text);
667: }
668: }
669: output("<html><head><title>Debugging Window</title></head><body><pre>");
670: </script>
671: ENDJS
672: }
673:
674: sub writedebug {
675: my $text = shift;
676: return "<script>output('$text');</script>";
677: }
678:
679: # -------------------- filters out files based on extensions (returns an array)
680: sub match_ext {
681: my ($r,@packlist)=@_;
682: my @trimlist;
683: my $nextline;
684: my @fileext;
685: my $dirptr=16384;
686:
687: foreach my $line (@packlist) {
688: chomp $line;
689: $line =~ s/^\/home\/httpd\/html//;
690: my @unpackline = split (/\&/,$line);
691: next if ($unpackline[0] eq '.');
692: next if ($unpackline[0] eq '..');
693: my @filecom = split (/\./,$unpackline[0]);
694: my $fext = pop(@filecom);
695: my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
696: if ($fnptr == 0 and $unpackline[3] ne "") {
697: my $embstyle = &Apache::loncommon::fileembstyle($fext);
698: push @trimlist,$line if (defined($embstyle) &&
699: ($embstyle ne 'hdn' or $fext eq 'meta'));
700: } else {
701: push @trimlist,$line;
702: }
703: }
704: @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
705: return @trimlist;
706: }
707:
708: # ------------------------------- displays one line in appropriate table format
709: sub display_line {
710: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
711: my (@pathfn, $fndir);
712: # there could be relative paths (files actually belonging into this directory)
713: # or absolute paths (for example, from sequences)
714: my $absolute;
715: my $pathprefix;
716: if ($line=~/^\/res\//) {
717: $absolute=1;
718: $pathprefix='';
719: } else {
720: $absolute=0;
721: $pathprefix=$startdir;
722: }
723: my $dirptr=16384;
724: my $fileclr="#ffffe6";
725: my $iconpath= $r->dir_config('lonIconsURL') . '/';
726:
727: my @filecom = split (/\&/,$line);
728: my @pathcom = split (/\//,$filecom[0]);
729: my $listname = $pathcom[scalar(@pathcom)-1];
730: my $fnptr = $filecom[3]&$dirptr;
731: my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
732: $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
733:
734: my $tabtag='</td>';
735: my $i=0;
736: while ($i<=8) {
737: $tabtag=join('',$tabtag,"<td> </td>")
738: if $hash{'display_attrs_'.$i} == 1;
739: $i++;
740: }
741:
742: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
743:
744: # display uplink arrow
745: if ($filecom[1] eq 'viewOneUp') {
746: my $updir=$startdir;
747: # -------------- Filter out sequence containment in crumbs and "recent folders"
748: $updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
749: $updir=~s/\/+/\//g;
750:
751: $r->print("<tr valign='$valign' bgcolor=$fileclr>$extrafield");
752: $r->print("<td>\n");
753: $r->print ('<form method="post" name="dirpathUP" action="'.$updir.
754: '/" '.
755: 'onSubmit="return rep_dirpath(\'UP\','.
756: 'document.forms.fileattr.acts.value)" '.
757: 'enctype="application/x-www-form-urlencoded"'.
758: '>'."\n");
759: $r->print ('<input type=hidden name=openuri value="'.
760: $startdir.'">'."\n");
761: $r->print ('<input type="hidden" name="acts" value="">'."\n");
762: $r->print ('<input src="'.$iconpath.'arrow_up.gif"');
763: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
764: "\n");
765: $r->print(&mt("Up")." $tabtag</tr></form>\n");
766: return OK;
767: }
768: # Do we have permission to look at this?
769:
770: if($filecom[15] ne '1') { return OK if (!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])); }
771:
772: # make absolute links appear on different background
773: if ($absolute) { $fileclr='#aaaa88'; }
774:
775: # display domain
776: if ($filecom[1] eq 'domain') {
777: $r->print ('<input type="hidden" name="dirPointer" value="on">'."\n")
778: if ($ENV{'form.dirPointer'} eq "on");
779: $r->print("<tr valign='$valign' bgcolor=$fileclr>$extrafield");
780: $r->print("<td>");
781: &begin_form ($r,$filecom[0]);
782: my $anchor = $filecom[0];
783: $anchor =~ s/\///g;
784: $r->print ('<a name="'.$anchor.'">');
785: $r->print ('<input type="hidden" name="acts" value="">');
786: $r->print ('<input src="'.$iconpath.'folder_pointer_'.
787: $diropen.'.gif"');
788: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
789: "\n");
790: $r->print ('<a href="javascript:gothere(\''.$filecom[0].
791: '\')"><img src="'.$iconpath.'server.gif"');
792: $r->print (' border="0" /></a>'."\n");
793: $r->print (&mt("Domain")." - $listname ");
794: if ($Apache::lonnet::domaindescription{$listname}) {
795: $r->print("(".$Apache::lonnet::domaindescription{$listname}.
796: ")");
797: }
798: $r->print (" $tabtag</tr></form>\n");
799: return OK;
800:
801: # display user directory
802: }
803: if ($filecom[1] eq 'user') {
804: $r->print("<tr valign=$valign bgcolor=$fileclr>$extrafield");
805: $r->print("<td nowrap>\n");
806: my $curdir = $startdir.$filecom[0].'/';
807: my $anchor = $curdir;
808: $anchor =~ s/\///g;
809: &begin_form ($r,$curdir);
810: $r->print ('<a name="'.$anchor.'"><img src="'.$iconpath.
811: 'whitespace1.gif" border="0" />'."\n");
812: $r->print ('<input type="hidden" name="acts" value="">');
813: $r->print ('<input src="'.$iconpath.'folder_pointer_'.$diropen.
814: '.gif"');
815: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
816: "\n");
817: $r->print ('<a href="javascript:gothere(\''.$curdir.'\')"><img src='.
818: $iconpath.'quill.gif border="0" name="'.$msg.
819: '" height="22" /></a>');
820: my $domain=(split(m|/|,$startdir))[2];
821: my $plainname=&Apache::loncommon::plainname($listname,$domain);
822: $r->print ($listname);
823: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
824: $r->print ($tabtag.'</tr></form>'."\n");
825: return OK;
826: }
827:
828: # display file
829: if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
830: my $filelink = $pathprefix.$filecom[0];
831: my @file_ext = split (/\./,$listname);
832: my $curfext = $file_ext[-1];
833: if (@Omit) {
834: foreach (@Omit) { return OK if ($curfext eq $_); }
835: }
836: if (@Only) {
837: my $skip = 1;
838: foreach (@Only) { $skip = 0 if ($curfext eq $_); }
839: return OK if ($skip > 0);
840: }
841: # Set the icon for the file
842: my $iconname = &Apache::loncommon::icon($listname);
843: $r->print("<tr valign='$valign' bgcolor=$fileclr><td nowrap>");
844: my $metafile = grep /^\Q$filecom[0]\E\.meta\&/, @list;
845: my $title;
846: if ($ENV{'form.catalogmode'} eq 'interactive') {
847: $title=$listname;
848: $title = &Apache::lonnet::metadata($filelink,'title')
849: if ($metafile == 1);
850: $title=$listname unless $title;
851: my $titleesc=HTML::Entities::encode($title,'<>&"');
852: $titleesc=~s/\'/\\'/; #' (clean up this spare quote)
853: $r->print("<a href=\"javascript:select_data(\'",
854: $titleesc,"','",$filelink,"')\">");
855: $r->print("<img src='",$iconpath,"select.gif' border='0' /></a>".
856: "\n");
857: $r->print("</td><td nowrap>");
858: } elsif ($ENV{'form.catalogmode'} eq 'groupimport') {
859: $title=$listname;
860: #$title = &Apache::lonnet::metadata($filelink,'title')
861: #if ($metafile == 1);
862: $title=$listname unless $title;
863: my $titleesc=&HTML::Entities::encode($title,'<>&"');
864: $r->print("<form name='form$fnum'>\n");
865: $r->print("<input type='checkbox' name='filelink"."' ".
866: "value='$filelink' onClick='".
867: "javascript:queue(\"form$fnum\")' ");
868: if ($hash{'store_'.$filelink}) {
869: $r->print("checked");
870: }
871: $r->print(">\n");
872: $r->print("<input type='hidden' name='title"."' ".
873: "value='$titleesc'>\n");
874: $r->print("</form>\n");
875: $r->print("</td><td nowrap>");
876: $hash{"pre_${fnum}_link"}=$filelink;
877: $hash{"pre_${fnum}_title"}=$titleesc;
878: $fnum++;
879: }
880: # Form to open or close sequences
881: if ($filelink=~/\.(page|sequence)$/) {
882: my $curdir = $startdir.$filecom[0].'/';
883: my $anchor = $curdir;
884: $anchor =~ s/\///g;
885: &begin_form($r,$curdir);
886: $indent--;
887: }
888: # General indentation
889: if ($indent > 0 and $indent < 11) {
890: $r->print("<img src=",$iconpath,"whitespace",$indent,
891: ".gif border='0' />\n");
892: } elsif ($indent >0) {
893: my $ten = int($indent/10.);
894: my $rem = $indent%10.0;
895: my $count = 0;
896: while ($count < $ten) {
897: $r->print("<img src=",$iconpath,
898: "whitespace10.gif border='0' />\n");
899: $count++;
900: }
901: $r->print("<img src=",$iconpath,"whitespace",$rem,
902: ".gif border='0' />\n") if $rem > 0;
903: }
904: # Sequence open/close icon
905: if ($filelink=~/\.(page|sequence)$/) {
906: my $curdir = $startdir.$filecom[0].'/';
907: my $anchor = $curdir;
908: $anchor =~ s/\///g;
909: $r->print ('<input type="hidden" name="acts" value="">');
910: $r->print ('<a name="'.$anchor.'"><input src="'.$iconpath.
911: 'folder_pointer_'.$diropen.'.gif"');
912: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
913: "\n");
914: }
915: # Filetype icons
916: $r->print("<img src='$iconname' border='0' />\n");
917: # Close form to open/close sequence
918: if ($filelink=~/\.(page|sequence)$/) {
919: $r->print('</form>');
920: }
921: $r->print (" <a href=\"javascript:openWindow('".$filelink.
922: "', 'previewfile', '450', '500', 'no', 'yes','yes')\";".
923: " TARGET=_self>$listname</a> ");
924:
925: $r->print (" (<a href=\"javascript:openWindow('".$filelink.
926: ".meta', 'metadatafile', '500', '550', 'no', 'yes','no')\"; ".
927: "TARGET=_self>metadata</a>) ") if ($metafile == 1);
928:
929: $r->print("</td>\n");
930: if ($hash{'display_attrs_0'} == 1) {
931: my $title = &Apache::lonnet::gettitle($filelink,'title')
932: if ($metafile == 1);
933: $r->print('<td> '.($title eq '' ? ' ' : $title).
934: ' </td>'."\n");
935: }
936: $r->print('<td align=right> ',
937: $filecom[8]," </td>\n")
938: if $hash{'display_attrs_1'} == 1;
939: $r->print('<td> '.
940: (localtime($filecom[9]))." </td>\n")
941: if $hash{'display_attrs_2'} == 1;
942: $r->print('<td> '.
943: (localtime($filecom[10]))." </td>\n")
944: if $hash{'display_attrs_3'} == 1;
945:
946: if ($hash{'display_attrs_4'} == 1) {
947: my $author = &Apache::lonnet::metadata($filelink,'author')
948: if ($metafile == 1);
949: $r->print('<td> '.($author eq '' ? ' ' : $author).
950: " </td>\n");
951: }
952: if ($hash{'display_attrs_5'} == 1) {
953: my $keywords = &Apache::lonnet::metadata($filelink,'keywords')
954: if ($metafile == 1);
955: # $keywords = ' ' if (!$keywords);
956: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
957: " </td>\n");
958: }
959: if ($hash{'display_attrs_6'} == 1) {
960: my $lang = &Apache::lonnet::metadata($filelink,'language')
961: if ($metafile == 1);
962: $lang = &Apache::loncommon::languagedescription($lang);
963: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
964: " </td>\n");
965: }
966: if ($hash{'display_attrs_7'} == 1) {
967: my $output='';
968: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
969: if ($embstyle eq 'ssi') {
970: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
971: '.tmp';
972: if ((!$ENV{'form.updatedisplay'}) &&
973: (-e $cache)) {
974: open(FH,$cache);
975: $output=join("\n",<FH>);
976: close(FH);
977: } else {
978: $output=&Apache::lonnet::ssi_body($filelink);
979: open(FH,">$cache");
980: print FH $output;
981: close(FH);
982: }
983: $output='<font size="-2">'.$output.'</font>';
984: } elsif ($embstyle eq 'img') {
985: $output='<img src="'.$filelink.'" />';
986: } elsif ($filelink=~/^\/res\/(\w+)\/(\w+)\//) {
987: $output='<img src="http://'.
988: $Apache::lonnet::hostname{&Apache::lonnet::homeserver($2,$1)}.
989: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
990: }
991: $r->print('<td> '.($output eq '' ? ' ':$output).
992: " </td>\n");
993: }
994: if ($hash{'display_attrs_8'} == 1) {
995: my (%stat) = &Apache::lonmeta::dynamicmeta($filelink) if ($metafile == 1);
996: my $stat = (exists($stat{'course'}) ? $stat{'course'} : '').
997: ((exists($stat{'course'}) || exists($stat{'count'})) ? '/' : '').
998: (exists($stat{'count'}) ? $stat{'count'} : '');
999: $r->print('<td align=center> '.($stat eq '' ? ' ' : $stat).
1000: ' </td>'."\n");
1001: }
1002:
1003: $r->print("</tr>\n");
1004: }
1005:
1006: # -- display directory
1007: if ($fnptr == $dirptr) {
1008: my $curdir = $startdir.$filecom[0].'/';
1009: my $anchor = $curdir;
1010: $anchor =~ s/\///g;
1011: $r->print("<tr bgcolor=$fileclr>$extrafield<td valign=$valign>");
1012: &begin_form ($r,$curdir);
1013: my $indentm1 = $indent-1;
1014: if ($indentm1 < 11 and $indentm1 > 0) {
1015: $r->print("<img src=",$iconpath,"whitespace",$indentm1,
1016: ".gif border='0' />\n");
1017: } else {
1018: my $ten = int($indentm1/10.);
1019: my $rem = $indentm1%10.0;
1020: my $count = 0;
1021: while ($count < $ten) {
1022: $r->print ("<img src=",$iconpath
1023: ,"whitespace10.gif border='0' />\n");
1024: $count++;
1025: }
1026: $r->print ("<img src=",$iconpath,"whitespace",$rem,
1027: ".gif border='0' />\n") if $rem > 0;
1028: }
1029: $r->print ('<input type="hidden" name="acts" value="">');
1030: $r->print ('<a name="'.$anchor.'"><input src="'.$iconpath.
1031: 'folder_pointer_'.$diropen.'.gif"');
1032: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
1033: "\n");
1034: $r->print ('<a href="javascript:gothere(\''.$curdir.'\')"><img src="'.
1035: $iconpath.'folder_'.$diropen.'.gif" border="0" /></a>'.
1036: "\n");
1037: $r->print ("$listname</td>\n");
1038: # Attributes
1039: my $filelink = $startdir.$filecom[0].'/default';
1040:
1041: if ($hash{'display_attrs_0'} == 1) {
1042: my $title = &Apache::lonnet::gettitle($filelink,'title');
1043: $r->print('<td> '.($title eq '' ? ' ' : $title).
1044: ' </td>'."\n");
1045: }
1046: $r->print('<td align=right> ',
1047: $filecom[8]," </td>\n")
1048: if $hash{'display_attrs_1'} == 1;
1049: $r->print('<td> '.
1050: (localtime($filecom[9]))." </td>\n")
1051: if $hash{'display_attrs_2'} == 1;
1052: $r->print('<td> '.
1053: (localtime($filecom[10]))." </td>\n")
1054: if $hash{'display_attrs_3'} == 1;
1055:
1056: if ($hash{'display_attrs_4'} == 1) {
1057: my $author = &Apache::lonnet::metadata($filelink,'author');
1058: $r->print('<td> '.($author eq '' ? ' ' : $author).
1059: " </td>\n");
1060: }
1061: if ($hash{'display_attrs_5'} == 1) {
1062: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1063: # $keywords = ' ' if (!$keywords);
1064: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1065: " </td>\n");
1066: }
1067: if ($hash{'display_attrs_6'} == 1) {
1068: my $lang = &Apache::lonnet::metadata($filelink,'language');
1069: $lang = &Apache::loncommon::languagedescription($lang);
1070: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1071: " </td>\n");
1072: }
1073: if ($hash{'display_attrs_7'} == 1) {
1074: $r->print('<td> </td>');
1075: }
1076: if ($hash{'display_attrs_8'} == 1) {
1077: $r->print('<td> </td>');
1078: }
1079: $r->print('</form></tr>');
1080: }
1081:
1082: }
1083:
1084: # ------------------- prints the beginning of a form for directory or file link
1085: sub begin_form {
1086: my ($r,$uri) = @_;
1087: my $anchor = $uri;
1088: $anchor =~ s/\///g;
1089: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1090: '#'.$anchor.
1091: '" onSubmit="return rep_dirpath(\''.$dnum.'\''.
1092: ',document.forms.fileattr.acts.value)" '.
1093: 'enctype="application/x-www-form-urlencoded">'."\n");
1094: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'">'.
1095: "\n");
1096: $r->print ('<input type="hidden" name="dirPointer" value="on">'."\n");
1097: $dnum++;
1098: }
1099:
1100: # --------- settings whenever the user causes the indexer window to be launched
1101: sub start_fresh_session {
1102: delete $hash{'form.catalogmode'};
1103: delete $hash{'form.mode'};
1104: delete $hash{'form.form'};
1105: delete $hash{'form.element'};
1106: delete $hash{'form.omit'};
1107: delete $hash{'form.only'};
1108: foreach (keys %hash) {
1109: delete $hash{$_} if (/^(pre_|store)/);
1110: }
1111: }
1112:
1113: # ------------------------------------------------------------------- setvalues
1114: sub setvalues {
1115: # setvalues is used in registerurl to synchronize the database
1116: # hash and environment hashes
1117: my ($H1,$h1key,$H2,$h2key) =@_;
1118: #
1119: if (exists $H2->{$h2key}) {
1120: $H1->{$h1key} = $H2->{$h2key};
1121: } elsif (exists $H1->{$h1key}) {
1122: $H2->{$h2key} = $H1->{$h1key};
1123: }
1124: }
1125:
1126: 1;
1127:
1128: sub cleanup {
1129: if (tied(%hash)){
1130: &Apache::lonnet::logthis('Cleanup indexer: hash');
1131: }
1132: }
1133:
1134: =head1 NAME
1135:
1136: Apache::lonindexer - mod_perl module for cross server filesystem browsing
1137:
1138: =head1 SYNOPSIS
1139:
1140: Invoked by /etc/httpd/conf/srm.conf:
1141:
1142: <LocationMatch "^/res.*/$">
1143: SetHandler perl-script
1144: PerlHandler Apache::lonindexer
1145: </LocationMatch>
1146:
1147: =head1 INTRODUCTION
1148:
1149: This module enables a scheme of browsing across a cross server.
1150:
1151: This is part of the LearningOnline Network with CAPA project
1152: described at http://www.lon-capa.org.
1153:
1154: =head1 BEGIN SUBROUTINE
1155:
1156: This routine is only run once after compilation.
1157:
1158: =over 4
1159:
1160: =item *
1161:
1162: Initializes %language hash table.
1163:
1164: =back
1165:
1166: =head1 HANDLER SUBROUTINE
1167:
1168: This routine is called by Apache and mod_perl.
1169:
1170: =over 4
1171:
1172: =item *
1173:
1174: read in machine configuration variables
1175:
1176: =item *
1177:
1178: see if called from an interactive mode
1179:
1180: =item *
1181:
1182: refresh environment with user database values (in %hash)
1183:
1184: =item *
1185:
1186: define extra fields and buttons in case of special mode
1187:
1188: =item *
1189:
1190: set catalogmodefunctions to have extra needed javascript functionality
1191:
1192: =item *
1193:
1194: print header
1195:
1196: =item *
1197:
1198: evaluate actions from previous page (both cumulatively and chronologically)
1199:
1200: =item *
1201:
1202: output title
1203:
1204: =item *
1205:
1206: get state of file attributes to be showing
1207:
1208: =item *
1209:
1210: output state of file attributes to be showing
1211:
1212: =item *
1213:
1214: output starting row to the indexed file/directory hierarchy
1215:
1216: =item *
1217:
1218: read in what directories have previously been set to "open"
1219:
1220: =item *
1221:
1222: if not at top level, provide an uplink arrow
1223:
1224: =item *
1225:
1226: recursively go through all the directories and output as appropriate
1227:
1228: =item *
1229:
1230: information useful for group import
1231:
1232: =item *
1233:
1234: end the tables
1235:
1236: =item *
1237:
1238: end the output and return
1239:
1240: =back
1241:
1242: =head1 OTHER SUBROUTINES
1243:
1244: =over 4
1245:
1246: =item *
1247:
1248: scanDir - recursive scan of a directory
1249:
1250: =item *
1251:
1252: get_list - get complete matched list based on the uri (returns an array)
1253:
1254: =item *
1255:
1256: match_ext - filters out files based on extensions (returns an array)
1257:
1258: =item *
1259:
1260: display_line - displays one line in appropriate table format
1261:
1262: =item *
1263:
1264: begin_form - prints the beginning of a form for directory or file link
1265:
1266: =item *
1267:
1268: start_fresh_session - settings whenever the user causes the indexer window
1269: to be launched
1270:
1271: =back
1272:
1273: =cut
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