1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.180 2008/02/15 11:06:22 bisitz 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 Apache::lonsource();
56: use Apache::groupsort();
57: use GDBM_File;
58: use LONCAPA qw(:match);
59:
60: # ---------------------------------------- variables used throughout the module
61: my %hash; # global user-specific gdbm file
62: my %dirs; # keys are directories, values are the open/close status
63: my %language; # has the reference information present in language.tab
64: my %dynhash; # hash of hashes for dynamic metadata
65: my %dynread; # hash of directories already read for dynamic metadata
66: my %fieldnames; # Metadata fieldnames
67: # ----- Values which are set by the handler subroutine and are accessible to
68: # ----- other methods.
69: my $extrafield; # default extra table cell
70: my $fnum; # file counter
71: my $dnum; # directory counter
72:
73: # ----- Used to include or exclude files with certain extensions.
74: my @Only = ();
75: my @Omit = ();
76:
77:
78:
79:
80: # ----------------------------- Handling routine called via Apache and mod_perl
81: sub handler {
82: my $r = shift;
83: my $c = $r->connection();
84: &Apache::loncommon::content_type($r,'text/html');
85: &Apache::loncommon::no_cache($r);
86: $r->send_http_header;
87: return OK if $r->header_only;
88: $fnum=0;
89: $dnum=0;
90:
91: # Deal with stupid global variables (is there a way around making
92: # these global to this package? It is just so wrong....)
93: undef (@Only);
94: undef (@Omit);
95: %fieldnames=&Apache::lonmeta::fieldnames();
96:
97: # ------------------------------------- read in machine configuration variables
98: my $iconpath= $r->dir_config('lonIconsURL') . "/";
99: my $domain = $r->dir_config('lonDefDomain');
100: my $role = $r->dir_config('lonRole');
101: my $loadlim = $r->dir_config('lonLoadLim');
102: my $servadm = $r->dir_config('lonAdmEMail');
103: my $sysadm = $r->dir_config('lonSysEMail');
104: my $lonhost = $r->dir_config('lonHostID');
105: my $tabdir = $r->dir_config('lonTabDir');
106:
107: my $fileclr='#ffffe6';
108: my $line;
109: my (@attrchk,@openpath,$typeselect);
110: my $uri=$r->uri;
111:
112: # -------------------------------------- see if called from an interactive mode
113: # Get the parameters from the query string
114: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
115: ['catalogmode','launch','acts','mode','form','element',
116: 'only','omit','titleelement']);
117: #-------------------------------------------------------------------
118: my $closebutton='';
119: my $groupimportbutton='';
120: my $colspan='';
121:
122: $extrafield='';
123: my $diropendb =
124: "/home/httpd/perl/tmp/$env{'user.domain'}_$env{'user.name'}_sel_res.db";
125: %hash = ();
126: {
127: my %dbfile;
128: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_WRITER(),0640)) {
129: if ($env{'form.launch'} eq '1') {
130: &start_fresh_session(\%dbfile);
131: }
132: while(my($key,$value)=each(%dbfile)) {
133: $hash{$key}=$value;
134: }
135: untie(%dbfile);
136: }
137: }
138: # - Evaluate actions from previous page (both cumulatively and chronologically)
139: if ($env{'form.catalogmode'} eq 'import' || $hash{'form.catalogmode'} eq 'import') {
140: &Apache::groupsort::update_actions_hash(\%hash);
141: }
142:
143: {
144: #Hijack lonindexer to verify a title and be close down.
145: if ($env{'form.launch'} eq '2') {
146: &Apache::loncommon::content_type($r,'text/html');
147: my $extra='';
148: if (defined($env{'form.titleelement'}) &&
149: $env{'form.titleelement'} ne '') {
150: my $verify_title = &Apache::lonnet::gettitle($env{'form.acts'});
151: # &Apache::lonnet::logthis("Hrrm $env{'form.acts'} -- $verify_title");
152: $verify_title=~s/'/\\'/g;
153: $extra='window.opener.document.forms["'.$env{'form.form'}.'"].elements["'.$env{'form.titleelement'}.'"].value=\''.$verify_title.'\';';
154: }
155: my $js = <<ENDSUBM;
156: <script type="text/javascript">
157: function load() {
158: window.opener.document.forms["$env{'form.form'}"]
159: .elements["$env{'form.element'}"]
160: .value='$env{'form.acts'}';
161: $extra
162: window.close();
163: }
164: </script>
165: ENDSUBM
166: $r->print(&Apache::loncommon::start_page(undef,$js,
167: {'only_body' =>1,
168: 'add_entries' =>
169: {'onload' => "load();"},}
170: ).
171: &Apache::loncommon::end_page());
172: return OK;
173: }
174:
175: # -------------------- refresh environment with user database values (in %hash)
176: &setvalues(\%hash,'form.catalogmode',\%env,'form.catalogmode' );
177:
178: # --------------------- define extra fields and buttons in case of special mode
179: if ($env{'form.catalogmode'} eq 'interactive') {
180: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
181: '<img alt="" src="'.$iconpath.'whitespace1.gif"'.
182: ' class="LC_icon" /></td>';
183: $colspan=" colspan='2' ";
184: my $cl=&mt('Close');
185: $closebutton=<<END;
186: <input type="button" name="close" value='$cl' onClick="self.close()" />
187: END
188: }
189: elsif ($env{'form.catalogmode'} eq 'import') {
190: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
191: '<img alt="" src="'.$iconpath.'whitespace1.gif"'.
192: ' class="LC_icon" /></td>';
193: $colspan=" colspan='2' ";
194: my $cl=&mt('Close');
195: my $gi=&mt('Import');
196: $closebutton=<<END;
197: <input type="button" name="close" value='$cl' onClick="self.close()" />
198: END
199: $groupimportbutton=<<END;
200: <input type="button" name="groupimport" value='$gi'
201: onClick="javascript:select_group()" />
202: END
203: }
204: # Additions made by Matthew to make the browser a little easier to deal
205: # with in the future.
206: #
207: # $mode (at this time) indicates if we are in edit mode.
208: # $form is the name of the form that the URL is placed when the
209: # selection is made.
210: # $element is the name of the element in $formname which receives
211: # the URL.
212: #&Apache::lonxml::debug('Checking mode, form, element');
213: &setvalues(\%hash,'form.mode' ,\%env,'form.mode' );
214: &setvalues(\%hash,'form.form' ,\%env,'form.form' );
215: &setvalues(\%hash,'form.element' ,\%env,'form.element');
216: &setvalues(\%hash,'form.titleelement',\%env,'form.titleelement');
217: &setvalues(\%hash,'form.only' ,\%env,'form.only' );
218: &setvalues(\%hash,'form.omit' ,\%env,'form.omit' );
219:
220: # Deal with 'omit' and 'only'
221: if (exists $env{'form.omit'}) {
222: @Omit = split(',',$env{'form.omit'});
223: }
224: if (exists $env{'form.only'}) {
225: @Only = split(',',$env{'form.only'});
226: }
227:
228: my $mode = $env{'form.mode'};
229: my ($form,$element,$titleelement);
230: if ($mode eq 'edit' || $mode eq 'parmset') {
231: $form = $env{'form.form'};
232: $element = $env{'form.element'};
233: $titleelement = $env{'form.titleelement'};
234: }
235: #&Apache::lonxml::debug("mode=$mode form=$form element=$element titleelement=$titleelement");
236: # ------ set catalogmodefunctions to have extra needed javascript functionality
237: my $catalogmodefunctions='';
238: if ($env{'form.catalogmode'} eq 'interactive' or
239: $env{'form.catalogmode'} eq 'import') {
240: # The if statement below sets us up to use the old version
241: # by default (ie. if $mode is undefined). This is the easy
242: # way out. Hopefully in the future I'll find a way to get
243: # the calls dealt with in a more comprehensive manner.
244:
245: #
246: # There is now also mode "simple", which is for the simple version of the rat
247: #
248: #
249: if (!defined($mode) || ($mode ne 'edit' && $mode ne 'parmset')) {
250: my $location = "/adm/groupsort?&inhibitmenu=yes&catalogmode=import&";
251: $location .= "mode=".$mode."&";
252: $location .= "acts=";
253: $catalogmodefunctions=<<"END";
254: function select_data(url) {
255: changeURL(url);
256: self.close();
257: }
258: function select_group() {
259: window.location="$location"+document.forms.fileattr.acts.value;
260: }
261: function changeURL(val) {
262: if (opener.inf) {
263: if (opener.inf.document.forms.resinfo.elements.u) {
264: opener.inf.document.forms.resinfo.elements.u.value=val;
265: }
266: }
267: }
268: END
269: } elsif ($mode eq 'edit') { # we are in 'edit' mode
270: my $location = "/adm/groupsort?catalogmode=interactive&";
271: $location .= "form=$form&element=$element&mode=edit&acts=";
272: $catalogmodefunctions=<<END;
273: // mode = $mode
274: function select_data(url) {
275: var location = "/res/?launch=2&form=$form&element=$element&titleelement=$titleelement&acts=" + url;
276: window.location=location;
277: if (window.opener.document.forms["$form"].elements["$element"].value != url) {
278: window.opener.unClean();
279: }
280: }
281: function select_group() {
282: window.location="$location"+document.forms.fileattr.acts.value;
283: }
284:
285: function changeURL(val) {
286: if (window.opener.document) {
287: window.opener.document.forms["$form"].elements["$element"].value=val;
288: } else {
289: alert("The file you selected is: "+val);
290: }
291: }
292: END
293: if (!$titleelement) {
294: $catalogmodefunctions.='function changeTitle(val) {}';
295: } else {
296: $catalogmodefunctions.=<<END;
297: function changeTitle(val) {
298: if (window.opener.document) {
299: window.opener.document.forms["$form"].elements["$titleelement"].value=val;
300: } else {
301: alert("The title of the file you selected is: "+val);
302: }
303: }
304: END
305: }
306: } elsif ($mode eq 'parmset') {
307: my $location = "/adm/groupsort?catalogmode=interactive&";
308: $location .= "form=$form&element=$element&mode=parmset&acts=";
309: $catalogmodefunctions=<<END;
310: // mode = $mode
311: function select_data(url) {
312: changeURL(url);
313: self.close();
314: }
315:
316: function select_group() {
317: window.location="$location"+document.forms.fileattr.acts.value;
318: }
319:
320: function changeURL(val) {
321: if (window.opener.document) {
322: var elementname = "$element"+"_value";
323: var checkboxname = "$element"+"_setparmval";
324: window.opener.document.forms["$form"].elements[elementname].value=val;
325: window.opener.document.forms["$form"].elements[checkboxname].checked=true;
326: } else {
327: alert("The file you selected is: "+val);
328: }
329: }
330:
331: END
332: }
333: }
334: $catalogmodefunctions.=<<END;
335: var acts='';
336: function rep_dirpath(suffix,val) {
337: eval("document.forms.dirpath"+suffix+".acts.value=val");
338: }
339: END
340: if ($env{'form.catalogmode'} eq 'import') {
341: $catalogmodefunctions.=<<END;
342: function queue(val) {
343: if (eval("document.forms."+val+".filelink.checked")) {
344: var l=val.length;
345: var v=val.substring(4,l);
346: document.forms.fileattr.acts.value+='1a'+v+'b';
347: }
348: else {
349: var l=val.length;
350: var v=val.substring(4,l);
351: document.forms.fileattr.acts.value+='0a'+v+'b';
352: }
353: }
354: END
355: }
356:
357: my $inhibit_menu = "+'&".&Apache::loncommon::inhibit_menu_check()."'";
358: # ---------------------------------------------------------------- Print Header
359:
360: my $js = <<"ENDHEADER";
361: <script type="text/javascript">
362: $catalogmodefunctions;
363: function update_only(field) {
364: alert(field.name);
365: }
366: function checkAll() {
367: var numForms = document.forms.length;
368: for (i=0;i<numForms;i++) {
369: var numElements = document.forms[i].elements.length;
370: for (j=0;j<numElements;j++){
371: var fieldName = document.forms[i].elements[j].name;
372: if (fieldName == 'filelink') {
373: document.forms[i].elements[j].checked = true;
374: queue(document.forms[i].name);
375: }
376: }
377: }
378: }
379: function uncheckAll() {
380: var numForms = document.forms.length;
381: for (i=0;i<numForms;i++) {
382: var numElements = document.forms[i].elements.length;
383: for (j=0;j<numElements;j++){
384: var fieldName = document.forms[i].elements[j].name;
385: if (fieldName == 'filelink') {
386: document.forms[i].elements[j].checked = false;
387: queue(document.forms[i].name);
388: }
389: }
390: }
391: }
392: function openWindow(url, wdwName, w, h, toolbar,scrollbar,locationbar) {
393: var xpos = (screen.width-w)/2;
394: xpos = (xpos < 0) ? '0' : xpos;
395: var ypos = (screen.height-h)/2-30;
396: ypos = (ypos < 0) ? '0' : ypos;
397: var options = "width=" + w + ",height=" + h + ",screenx="+xpos+",screeny="+ypos+",";
398: options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
399: options += "menubar=no,toolbar="+toolbar+",location="+locationbar+",directories=no";
400: var newWin = window.open(url, wdwName, options);
401: newWin.focus();
402: }
403: function gothere(val) {
404: window.location=val+'?acts='+document.forms.fileattr.acts.value$inhibit_menu;
405: }
406: </script>
407: ENDHEADER
408:
409: my ($headerdom)=($uri=~m{^/res/($match_domain)/});
410: $r->print(&Apache::loncommon::start_page('Browse Resources',$js,
411: {'domain' => $headerdom,}));
412: # ---------------------------------- get state of file types to be showing
413: if ($env{'form.only'}) {
414: $typeselect = $env{'form.only'};
415: } else {
416: $typeselect = '';
417: }
418:
419: # ---------------------------------- get state of file attributes to be showing
420: if ($env{'form.attrs'}) {
421: for (my $i=0; $i<=11; $i++) {
422: delete $hash{'display_attrs_'.$i};
423: if ($env{'form.attr'.$i} == 1) {
424: $attrchk[$i] = 'checked';
425: $hash{'display_attrs_'.$i} = 1;
426: }
427: }
428: } else {
429: for (my $i=0; $i<=11; $i++) {
430: $attrchk[$i] = 'checked' if $hash{'display_attrs_'.$i} == 1;
431: }
432: }
433:
434: # ------------------------------- output state of file attributes to be showing
435: # All versions has to the last item
436: # since it does not take an extra col
437: my %lt=&Apache::lonlocal::texthash(
438: 'ti' => 'Title',
439: 'si' => 'Size',
440: 'la' => 'Last access',
441: 'lm' => 'Last modified',
442: 'st' => 'Statistics',
443: 'au' => 'Author',
444: 'kw' => 'Keywords',
445: 'ln' => 'Language',
446: 'sa' => 'Source Available',
447: 'sr' => 'Show resource',
448: 'li' => 'Linked/Related Resources',
449: 'av' => 'All versions',
450: 'ud' => 'Update Display',
451: 'pr' => 'Problems',
452: 'gr' => 'Graphics',
453: 'at' => 'All types'
454: );
455: $r->print(<<END);
456: <form method="post" name="fileattr" action="$uri"
457: enctype="application/x-www-form-urlencoded">
458: <label><input type="checkbox" name="attr9" value="1" $attrchk[9] onClick="this.form.submit();" /> $lt{'av'}</label>
459: <table border="0">
460: <tr>
461: <td><label><input type="checkbox" name="attr0" value="1" $attrchk[0] onClick="this.form.submit();" /> $lt{'ti'}</label></td>
462: <td><label><input type="checkbox" name="attr4" value="1" $attrchk[4] onClick="this.form.submit();" /> $lt{'au'}</label></td>
463: <td><label><input type="checkbox" name="attr5" value="1" $attrchk[5] onClick="this.form.submit();" /> $lt{'kw'}</label></td>
464: <td><label><input type="checkbox" name="attr6" value="1" $attrchk[6] onClick="this.form.submit();" /> $lt{'ln'}</label></td>
465: </tr>
466: <tr>
467: <td><label><input type="checkbox" name="attr1" value="1" $attrchk[1] onClick="this.form.submit();" /> $lt{'si'}</label></td>
468: <td><label><input type="checkbox" name="attr2" value="1" $attrchk[2] onClick="this.form.submit();" /> $lt{'la'}</label></td>
469: <td><label><input type="checkbox" name="attr3" value="1" $attrchk[3] onClick="this.form.submit();" /> $lt{'lm'}</label></td>
470: <td><label><input type="checkbox" name="attr10" value="1" $attrchk[10] onClick="this.form.submit();" /> $lt{'sa'}</label></td>
471: </tr>
472: <tr>
473: <td><label><input type="checkbox" name="attr8" value="1" $attrchk[8] onClick="this.form.submit();" /> $lt{'st'}</label></td>
474: <td><label><input type="checkbox" name="attr11" value="1" $attrchk[11] onClick="this.form.submit();" /> $lt{'li'}</label></td>
475: <td><label><input type="checkbox" name="attr7" value="1" $attrchk[7] onClick="this.form.submit();" /> $lt{'sr'}</label></td>
476: <td> </td>
477: </tr>
478: </table>
479: <input type="hidden" name="attrs" value="1" />
480: END
481: my @file_categories = &Apache::loncommon::filecategories();
482: my %select_file_categories;
483: my @select_form_order = ('');
484: $select_file_categories{''} = &mt('All file types');
485: foreach my $cat (@file_categories) {
486: my $types = join(",",&Apache::loncommon::filecategorytypes($cat));
487: $select_file_categories{$types} = $cat;
488: push(@select_form_order,$types);
489: }
490: $select_file_categories{'select_form_order'} = \@select_form_order;
491: my $type_element=
492: &Apache::loncommon::select_form($typeselect,'only',
493: %select_file_categories);
494: $type_element = '<label>'.&mt('File Type Displayed: [_1]',
495: $type_element).'</label>';
496: $r->print(<<END);
497: $type_element
498: <br />
499: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
500: <input type="hidden" name="acts" value="" />
501: $closebutton $groupimportbutton
502: END
503: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
504:
505: # -------------- Filter out sequence containment in crumbs and "recent folders"
506: my $storeuri=$uri;
507: $storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
508: $storeuri=~s/\/+/\//g;
509: # ---------------------------------------------------------------- Bread crumbs
510: $r->print(&Apache::lonhtmlcommon::crumbs($storeuri,'','',
511: (($env{'form.catalogmode'} eq 'import')?
512: 'document.forms.fileattr':'')).
513: &Apache::lonhtmlcommon::select_recent('residx','resrecent',
514: '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();'));
515: # -------------------------------------------------------- Resource Home Button
516: my $reshome=$env{'course.'.$env{'request.course.id'}.'.reshome'};
517: if ($reshome) {
518: $r->print("<font size='+2'><a href='");
519: if ($env{'form.catalogmode'} eq 'import') {
520: $r->print('javascript:document.forms.fileattr.action="'.&Apache::loncommon::inhibit_menu_check($reshome).'";document.forms.fileattr.submit();');
521: } else {
522: $r->print($reshome);
523: }
524: $r->print("'>".&mt('Home').'</a></font>');
525: }
526: $r->print('</form>');
527: # ------------------------------------------------------ Remember where we were
528: &Apache::loncommon::storeresurl($storeuri);
529: &Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
530: # -------------------------------------------------- Check All and Uncheck all
531: if ($env{'form.catalogmode'} eq 'import') {
532: $r->print('<br /><input type="button" value="'.&mt("Check All").'" id="checkallbutton" onClick="javascript:checkAll()" />');
533: $r->print('<input type="button" value="'.&mt("Uncheck All").'" id="uncheckallbutton" onClick="javascript:uncheckAll()" />');
534: }
535: # ----------------- output starting row to the indexed file/directory hierarchy
536: my $titleclr="#ddffff";
537: #$r->print(&initdebug());
538: #$r->print(&writedebug("Omit:@Omit")) if (@Omit);
539: #$r->print(&writedebug("Only:@Only")) if (@Only);
540: $r->print('<table width="100%" border="0"><tr><td bgcolor="#777777">'."\n");
541: $r->print('<table width="100%" border="0"><tr bgcolor="'.$titleclr.'">'."\n");
542: $r->print("<td $colspan><b>".&mt('Name')."</b></td>\n");
543: $r->print("<td><b>".&mt('Title')."</b></td>\n")
544: if ($hash{'display_attrs_0'} == 1);
545: $r->print("<td align=right><b>".&mt("Size")." (".&mt("bytes").") ".
546: "</b></td>\n") if ($hash{'display_attrs_1'} == 1);
547: $r->print("<td><b>".&mt("Last accessed")."</b></td>\n")
548: if ($hash{'display_attrs_2'} == 1);
549: $r->print("<td><b>".&mt("Last modified")."</b></td>\n")
550: if ($hash{'display_attrs_3'} == 1);
551: $r->print("<td><b>".&mt("Author(s)")."</b></td>\n")
552: if ($hash{'display_attrs_4'} == 1);
553: $r->print("<td><b>".&mt("Keywords")."</b></td>\n")
554: if ($hash{'display_attrs_5'} == 1);
555: $r->print("<td><b>".&mt("Language")."</b></td>\n")
556: if ($hash{'display_attrs_6'} == 1);
557: $r->print("<td><b>".&mt("Usage Statistics")." <br />(".
558: &mt("Courses/Network Hits").")</b> ".&mt('updated periodically')."</td>\n")
559: if ($hash{'display_attrs_8'} == 1);
560: $r->print("<td><b>".&mt("Source Available")."</b></td>\n")
561: if ($hash{'display_attrs_10'} == 1);
562: $r->print("<td><b>".&mt("Linked/Related Resources")."</b></td>\n")
563: if ($hash{'display_attrs_11'} == 1);
564: $r->print("<td><b>".&mt("Resource")."</b></td>\n")
565: if ($hash{'display_attrs_7'} == 1);
566: $r->print('</tr>');
567:
568: # ----------------- read in what directories have previously been set to "open"
569: foreach (keys %hash) {
570: if ($_ =~ /^diropen_status_/) {
571: my $key = $_;
572: $key =~ s/^diropen_status_//;
573: $dirs{$key} = $hash{$_};
574: }
575: }
576:
577: if ($env{'form.openuri'}) { # take care of review and refresh options
578: my $uri=$env{'form.openuri'};
579: if (exists($hash{'diropen_status_'.$uri})) {
580: my $cursta = $hash{'diropen_status_'.$uri};
581: $dirs{$uri} = 'open';
582: $hash{'diropen_status_'.$uri} = 'open';
583: if ($cursta eq 'open') {
584: $dirs{$uri} = 'closed';
585: $hash{'diropen_status_'.$uri} = 'closed';
586: }
587: } else {
588: $hash{'diropen_status_'.$uri} = 'open';
589: $dirs{$uri} = 'open';
590: }
591: }
592:
593: my $toplevel;
594: my $indent = 0;
595: $uri = $uri.'/' if $uri !~ /.*\/$/;
596:
597: if ($env{'form.dirPointer'} ne 'on') {
598: $hash{'top.level'} = $uri;
599: $toplevel = $uri;
600: } else {
601: $toplevel = $hash{'top.level'};
602: }
603:
604: # -------------------------------- if not at top level, provide an uplink arrow
605: if ($toplevel ne '/res/'){
606: my (@uri_com) = split(/\//,$uri);
607: pop @uri_com;
608: my $upone = join('/',@uri_com);
609: my @list = qw (0);
610: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
611: $indent = 1;
612: }
613:
614: # -------- recursively go through all the directories and output as appropriate
615: &scanDir ($r,$toplevel,$indent,\%hash);
616:
617:
618: # -------------------------------------------------------------- end the tables
619: $r->print('</table>');
620: # ---------------------------- embed hidden information useful for group import
621: $r->print("<form name='fnum' action=''>");
622: $r->print("<input type='hidden' name='fnum' value='$fnum' /></form>");
623: # -------------------------------------------------------------- end the tables
624: $r->print('</td></tr></table>');
625:
626: # --------------------------------------------------- end the output and return
627: $r->print(&Apache::loncommon::end_page()."\n");
628: }
629: if(! $c->aborted()) {
630: # write back into the temporary file
631: my %dbfile;
632: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
633: while (my($key,$value) = each(%hash)) {
634: $dbfile{$key}=$value;
635: }
636: untie(%dbfile);
637: }
638: }
639:
640: return OK;
641: }
642:
643: # ----------------------------------------------- recursive scan of a directory
644: sub scanDir {
645: my ($r,$startdir,$indent,$hashref)=@_;
646: my $c = $r->connection();
647: my ($compuri,$curdir);
648: my $dirptr=16384;
649: my $obs;
650: $indent++;
651: my %dupdirs = %dirs;
652: my @list=&get_list($r,$startdir);
653: foreach my $line (@list) {
654: return if ($c->aborted());
655: #This is a kludge, sorry aboot this
656: my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
657: next if($strip =~ /.*\.meta$/ | $obs eq '1');
658: my (@fileparts) = split(/\./,$strip);
659: if ($hash{'display_attrs_9'} != 1) {
660: # if not all versions to be shown
661: if (scalar(@fileparts) >= 3) {
662: my $fext = pop @fileparts;
663: my $ov = pop @fileparts;
664: my $fname = join ('.',@fileparts,$fext);
665: next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
666: }
667: }
668:
669: if ($dom eq 'domain') {
670: # dom list has full path /res/<domain name>/ already
671: $curdir='';
672: $compuri = (split(/\&/,$line))[0];
673: } else {
674: # user, dir & file have name only, i.e., w/o path
675: $compuri = join('',$startdir,$strip,'/');
676: $curdir = $startdir;
677: }
678: my $diropen = 'closed';
679: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
680: while (my ($key,$val)= each %dupdirs) {
681: if ($key eq $compuri and $val eq "open") {
682: $diropen = "opened";
683: delete($dupdirs{$key});
684: delete($dirs{$key});
685: }
686: }
687: }
688: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
689: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
690: }
691: $indent--;
692: }
693:
694: # --------------- get complete matched list based on the uri (returns an array)
695: sub get_list {
696: my ($r,$uri)=@_;
697: my @list=();
698: (my $luri = $uri) =~ s/\//_/g;
699: if ($env{'form.updatedisplay'}) {
700: foreach (keys %hash) {
701: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
702: delete $hash{$_} if ($_ =~ /^dirlist_timestamp_files_/);
703: }
704: }
705:
706: if (defined($hash{'dirlist_files_'.$luri}) &&
707: $hash{'dirlist_timestamp_files_'.$luri}+600 > (time)) {
708: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
709: } elsif ($uri=~/\.(page|sequence)\/$/) {
710: # is a page or a sequence
711: $uri=~s/\/$//;
712: $uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
713: $uri=~s/\/+/\//g;
714: foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
715: my @ratpart=split(/\:/,$_);
716: push(@list,&LONCAPA::map::qtescape($ratpart[1]));
717: }
718: $hash{'dirlist_files_'.$luri} = join("\n",@list);
719: } else {
720: # is really a directory
721: @list = &Apache::lonnet::dirlist($uri);
722: $hash{'dirlist_files_'.$luri} = join("\n",@list);
723: $hash{'dirlist_timestamp_files_'.$luri} = time;
724: }
725: return @list=&match_ext($r,@list);
726: }
727:
728: sub dynmetaread {
729: my $uri=shift;
730: if (($hash{'display_attrs_8'}==1) || ($hash{'display_attrs_11'}==1)) {
731: # We don't want the filename
732: $uri=~s/\/[^\/]+$//;
733: # Did we already see this?
734: my $builddir=$uri;
735: while ($builddir) {
736: if ($dynread{$builddir}) {
737: return 0;
738: }
739: $builddir=~s/\/[^\/]+$//;
740: }
741: # Actually get the data
742: %dynhash=
743: (%dynhash,&Apache::lonmeta::get_dynamic_metadata_from_sql($uri.'/'));
744: # Remember that we got it
745: $dynread{$uri}=1;
746: }
747: }
748:
749: sub initdebug {
750: my $start_page=
751: &Apache::loncommon::start_page('Debug',undef,
752: {'only_body' => 1,});
753: $start_page =~ s/\n/ /g;
754: return <<ENDJS;
755: <script type="text/javascript">
756: var debugging = true;
757: if (debugging) {
758: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
759: }
760:
761: function output(text) {
762: if (debugging) {
763: debuggingWindow.document.writeln(text);
764: }
765: }
766: output('$start_page<pre>');
767: </script>
768: ENDJS
769: }
770:
771: sub writedebug {
772: my ($text) = @_;
773: return "<script type=\"text/javascript\">output('$text');</script>";
774: }
775:
776: # -------------------- filters out files based on extensions (returns an array)
777: sub match_ext {
778: my ($r,@packlist)=@_;
779: my @trimlist;
780: my $nextline;
781: my @fileext;
782: my $dirptr=16384;
783:
784: foreach my $line (@packlist) {
785: chomp $line;
786: $line =~ s/^\/home\/httpd\/html//;
787: my @unpackline = split (/\&/,$line);
788: next if ($unpackline[0] eq '.');
789: next if ($unpackline[0] eq '..');
790: my @filecom = split (/\./,$unpackline[0]);
791: my $fext = pop(@filecom);
792: my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
793: if ($fnptr == 0 and $unpackline[3] ne "") {
794: my $embstyle = &Apache::loncommon::fileembstyle($fext);
795: push @trimlist,$line if (defined($embstyle) &&
796: ($embstyle ne 'hdn' or $fext eq 'meta'));
797: } else {
798: push @trimlist,$line;
799: }
800: }
801: @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
802: return @trimlist;
803: }
804:
805: # ------------------------------- displays one line in appropriate table format
806: sub display_line {
807: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
808: my (@pathfn, $fndir);
809: # there could be relative paths (files actually belonging into this directory)
810: # or absolute paths (for example, from sequences)
811: my $absolute;
812: my $pathprefix;
813: if ($line=~m|^/res/| && $startdir ne '') {
814: $absolute=1;
815: $pathprefix='';
816: } else {
817: $absolute=0;
818: $pathprefix=$startdir;
819: }
820: my $dirptr=16384;
821: my $fileclr="#ffffe6";
822: my $iconpath= $r->dir_config('lonIconsURL') . '/';
823:
824: my @filecom = split (/\&/,$line);
825: my @pathcom = split (/\//,$filecom[0]);
826: my $listname = $pathcom[scalar(@pathcom)-1];
827: my $fnptr = $filecom[3]&$dirptr;
828: my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
829: $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
830:
831: my $tabtag='</td>';
832: my $i=0;
833: while ($i<=11) {
834: $tabtag=join('',$tabtag,"<td> </td>")
835: if ($i != 9 &&
836: $hash{'display_attrs_'.$i} == 1);
837: $i++;
838: }
839: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
840:
841: # display uplink arrow
842: if ($filecom[1] eq 'viewOneUp') {
843: my $updir=$startdir;
844: # -------------- Filter out sequence containment in crumbs and "recent folders"
845: $updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
846: $updir=~s/\/+/\//g;
847:
848: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
849: $r->print("<td>\n");
850: $r->print ('<form method="post" name="dirpathUP" action="'.$updir.
851: '/" '.
852: 'onSubmit="return rep_dirpath(\'UP\','.
853: 'document.forms.fileattr.acts.value)" '.
854: 'enctype="application/x-www-form-urlencoded"'.
855: '>'."\n");
856: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
857: $r->print ('<input type=hidden name=openuri value="'.
858: $startdir.'" />'."\n");
859: $r->print ('<input type="hidden" name="acts" value="" />'."\n");
860: $r->print ('<input src="'.$iconpath.'arrow_up.gif"');
861: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
862: "\n");
863: $r->print(&mt("Up")."</form>$tabtag</tr>\n");
864: return OK;
865: }
866: # Do we have permission to look at this?
867:
868: if($filecom[15] ne '1') { return OK if (!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])); }
869:
870: # make absolute links appear on different background
871: if ($absolute) { $fileclr='#ccdd99'; }
872:
873: # display domain
874: if ($filecom[1] eq 'domain') {
875: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n")
876: if ($env{'form.dirPointer'} eq "on");
877: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
878: $r->print("<td>");
879: &begin_form ($r,$filecom[0]);
880: my $anchor = $filecom[0];
881: $anchor =~ s/\W//g;
882: $r->print ('<a name="'.$anchor.'"></a>');
883: $r->print ('<input type="hidden" name="acts" value="" />');
884: $r->print ('<input src="'.$iconpath.'folder_pointer_'.
885: $diropen.'.gif"');
886: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
887: "\n");
888: my $quotable_filecom = &Apache::loncommon::escape_single($filecom[0]);
889: $r->print ('<a href="javascript:gothere(\''.$quotable_filecom.
890: '\')"><img alt="" src="'.$iconpath.'server.gif"');
891: $r->print (' class="LC_icon" /></a>'."\n");
892: $r->print (&mt("Domain")." - $listname ");
893: if (&Apache::lonnet::domain($listname,'description')) {
894: $r->print("(".&Apache::lonnet::domain($listname,'description').
895: ")");
896: }
897: $r->print ("</form>$tabtag</tr>\n");
898: return OK;
899:
900: # display user directory
901: }
902: if ($filecom[1] eq 'user') {
903: # $r->print("<tr valign=$valign bgcolor=\"$fileclr\">$extrafield");
904: my $curdir = $startdir.$filecom[0].'/';
905: my $anchor = $curdir;
906: $anchor =~ s/\W//g;
907: $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
908: &begin_form ($r,$curdir);
909: $r->print ('<a name="'.$anchor.'"></a><img alt="" src="'.$iconpath.
910: 'whitespace1.gif" class="LC_icon" />'."\n");
911: $r->print ('<input type="hidden" name="acts" value="" />');
912: $r->print ('<input src="'.$iconpath.'folder_pointer_'.$diropen.
913: '.gif"');
914: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
915: "\n");
916: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
917: $r->print ('<a href="javascript:gothere(\''.$quotable_curdir
918: .'\')"><img alt="'.$msg.'" src="'.
919: $iconpath.'quill.gif" class="LC_indexer_icon" /></a>');
920: my $domain=(split(m|/|,$startdir))[2];
921: my $plainname=&Apache::loncommon::plainname($listname,$domain);
922: $r->print ($listname);
923: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
924: $r->print ('</form>'.$tabtag.'</tr>'."\n");
925: return OK;
926: }
927:
928: # display file
929: if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
930: my $title;
931: my $filelink = $pathprefix.$filecom[0];
932: if ($hash{'display_attrs_0'} == 1) {
933: $title = &Apache::lonnet::gettitle($filelink);
934: }
935: my @file_ext = split (/\./,$listname);
936: my $curfext = $file_ext[-1];
937: if (@Omit) {
938: foreach (@Omit) { return OK if (lc($curfext) eq $_); }
939: }
940: if (@Only) {
941: my $skip = 1;
942: foreach (@Only) { $skip = 0 if (lc($curfext) eq $_); }
943: return OK if ($skip > 0);
944: }
945: # Set the icon for the file
946: my $iconname = &Apache::loncommon::icon($listname);
947: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\"><td nowrap='nowrap' valign='top'>");
948:
949: if ($env{'form.catalogmode'} eq 'interactive') {
950: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
951: $r->print("<a href=\"javascript:select_data(\'",
952: $quotable_filelink,"')\">");
953: $r->print("<img alt=\"\" src='",$iconpath,"select.gif' class='LC_icon' /></a>".
954: "\n");
955: $r->print("</td><td nowrap='nowrap' valign='top'>");
956: } elsif ($env{'form.catalogmode'} eq 'import') {
957: $r->print("<form name='form$fnum' action=''>\n");
958: $r->print("<input type='checkbox' name='filelink"."' ".
959: "value='$filelink' onClick='".
960: "javascript:queue(\"form$fnum\")' ");
961: if ($hash{'store_'.$filelink}) {
962: $r->print("checked");
963: }
964: $r->print(" />\n");
965: $r->print("</form></td><td nowrap='nowrap' valign='top'>");
966: $hash{"pre_${fnum}_link"}=$filelink;
967: $hash{"pre_${fnum}_title"}=$title;
968: if (!$hash{"pre_${fnum}_title"}) {
969: $hash{"pre_${fnum}_title"} = 'Not_retrieved';
970: }
971: $fnum++;
972: }
973: # Form to open or close sequences
974: if ($filelink=~/\.(page|sequence)$/) {
975: my $curdir = $startdir.$filecom[0].'/';
976: &begin_form($r,$curdir);
977: $indent--;
978: }
979: # General indentation
980: if ($indent > 0 and $indent < 11) {
981: $r->print("<img alt=\"\" src='",$iconpath,"whitespace",$indent,
982: ".gif' class='LC_icon' />\n");
983: } elsif ($indent >0) {
984: my $ten = int($indent/10.);
985: my $rem = $indent%10.0;
986: my $count = 0;
987: while ($count < $ten) {
988: $r->print("<img alt=\"\" src=".$iconpath.
989: "whitespace10.gif class='LC_icon' />\n");
990: $count++;
991: }
992: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
993: ".gif class='LC_icon' />\n") if $rem > 0;
994: }
995: # Sequence open/close icon
996: if ($filelink=~/\.(page|sequence)$/) {
997: my $curdir = $startdir.$filecom[0].'/';
998: my $anchor = $curdir;
999: $anchor =~ s/\W//g;
1000: $r->print ('<input type="hidden" name="acts" value="" />');
1001: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
1002: 'folder_pointer_'.$diropen.'.gif"');
1003: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
1004: "\n");
1005: }
1006: # Filetype icons
1007: $r->print("<img alt=\"\" src='$iconname' class='LC_icon' />\n");
1008: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
1009:
1010: $r->print (" <a href=\"javascript:openWindow('".$quotable_filelink.
1011: "?inhibitmenu=yes','previewfile','450','500','no','yes','yes');\"".
1012: " target=\"_self\">$listname</a> ");
1013: $quotable_filelink = &Apache::loncommon::escape_single($filelink.'.meta');
1014: &Apache::loncommon::inhibit_menu_check(\$quotable_filelink);
1015: $r->print (" (<a href=\"javascript:openWindow('".$quotable_filelink.
1016: "?inhibitmenu=yes','metadatafile','500','550','no','yes','no');\" ".
1017: " target=\"_self\">".&mt('metadata')."</a>) ");
1018: # Close form to open/close sequence
1019: if ($filelink=~/\.(page|sequence)$/) {
1020: $r->print('</form>');
1021: }
1022: $r->print("</td>\n");
1023: if ($hash{'display_attrs_0'} == 1) {
1024: $r->print('<td> '.($title eq '' ? ' ' : $title).
1025: ' </td>'."\n");
1026: }
1027: $r->print('<td align=right> ',
1028: $filecom[8]," </td>\n")
1029: if $hash{'display_attrs_1'} == 1;
1030: $r->print('<td> '.
1031: (localtime($filecom[9]))." </td>\n")
1032: if $hash{'display_attrs_2'} == 1;
1033: $r->print('<td> '.
1034: (localtime($filecom[10]))." </td>\n")
1035: if $hash{'display_attrs_3'} == 1;
1036:
1037: if ($hash{'display_attrs_4'} == 1) {
1038: my $author = &Apache::lonnet::metadata($filelink,'author');
1039: $r->print('<td> '.($author eq '' ? ' ' : $author).
1040: " </td>\n");
1041: }
1042: if ($hash{'display_attrs_5'} == 1) {
1043: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1044: # $keywords = ' ' if (!$keywords);
1045: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1046: " </td>\n");
1047: }
1048: #'
1049:
1050: if ($hash{'display_attrs_6'} == 1) {
1051: my $lang = &Apache::lonnet::metadata($filelink,'language');
1052: $lang = &Apache::loncommon::languagedescription($lang);
1053: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1054: " </td>\n");
1055: }
1056: if ($hash{'display_attrs_8'} == 1) {
1057: # statistics
1058: &dynmetaread($filelink);
1059: $r->print("<td>");
1060: &dynmetaprint($r,$filelink,'count');
1061: &dynmetaprint($r,$filelink,'course');
1062: &dynmetaprint($r,$filelink,'stdno');
1063: &dynmetaprint($r,$filelink,'avetries');
1064: &dynmetaprint($r,$filelink,'difficulty');
1065: &dynmetaprint($r,$filelink,'disc');
1066: &dynmetaprint($r,$filelink,'clear');
1067: &dynmetaprint($r,$filelink,'technical');
1068: &dynmetaprint($r,$filelink,'correct');
1069: &dynmetaprint($r,$filelink,'helpful');
1070: &dynmetaprint($r,$filelink,'depth');
1071: $r->print(" </td>\n");
1072:
1073: }
1074: if ($hash{'display_attrs_10'} == 1) {
1075: my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
1076: if($source eq 'open') {
1077: my $sourcelink = &Apache::lonsource::make_link($filelink,$listname);
1078: my $quotable_sourcelink = &Apache::loncommon::escape_single($sourcelink);
1079: &Apache::loncommon::inhibit_menu_check(\$quotable_sourcelink);
1080: $r->print('<td>'."<a href=\"javascript:openWindow('"
1081: .$quotable_sourcelink.
1082: "', 'previewsource', '700', '700', 'no', 'yes','yes');\"".
1083: " target=\"_self\">Yes</a> "."</td>\n");
1084: } else { #A cuddled else. :P
1085: $r->print("<td> </td>\n");
1086: }
1087: }
1088: if ($hash{'display_attrs_11'} == 1) {
1089: # links
1090: &dynmetaread($filelink);
1091: $r->print('<td>');
1092: &coursecontext($r,$filelink);
1093: &dynmetaprint($r,$filelink,'goto_list');
1094: &dynmetaprint($r,$filelink,'comefrom_list');
1095: &dynmetaprint($r,$filelink,'sequsage_list');
1096: &dynmetaprint($r,$filelink,'dependencies');
1097: &dynmetaprint($r,$filelink,'course_list');
1098: $r->print('</td>');
1099: }
1100: if ($hash{'display_attrs_7'} == 1) {
1101: # Show resource
1102: my $output=&showpreview($filelink);
1103: $r->print('<td> '.($output eq '' ? ' ':$output).
1104: " </td>\n");
1105: }
1106: $r->print("</tr>\n");
1107: }
1108:
1109: # -- display directory
1110: if ($fnptr == $dirptr) {
1111: my $curdir = $startdir.$filecom[0].'/';
1112: my $anchor = $curdir;
1113: $anchor =~ s/\W//g;
1114: $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
1115: &begin_form ($r,$curdir);
1116: my $indentm1 = $indent-1;
1117: if ($indentm1 < 11 and $indentm1 > 0) {
1118: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$indentm1,
1119: ".gif class='LC_icon' />\n");
1120: } else {
1121: my $ten = int($indentm1/10.);
1122: my $rem = $indentm1%10.0;
1123: my $count = 0;
1124: while ($count < $ten) {
1125: $r->print ("<img alt=\"\" src=",$iconpath
1126: ,"whitespace10.gif class='LC_icon' />\n");
1127: $count++;
1128: }
1129: $r->print ("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
1130: ".gif class='LC_icon' />\n") if $rem > 0;
1131: }
1132: $r->print ('<input type="hidden" name="acts" value="" />');
1133: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
1134: 'folder_pointer_'.$diropen.'.gif"');
1135: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
1136: "\n");
1137: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
1138: $r->print ('<a href="javascript:gothere(\''
1139: .$quotable_curdir.'\')">'
1140: .'<img alt="'.&mt('Open Folder').'"src="'.
1141: $iconpath.'folder_'.$diropen.'.gif" class="LC_icon" /></a>'.
1142: "\n");
1143: $r->print ("$listname</form></td>\n");
1144: # Attributes
1145: my $filelink = $startdir.$filecom[0].'/default';
1146:
1147: if ($hash{'display_attrs_0'} == 1) {
1148: my $title = &Apache::lonnet::gettitle($filelink);
1149: $r->print('<td> '.($title eq '' ? ' ' : $title).
1150: ' </td>'."\n");
1151: }
1152: $r->print('<td align=right> ',
1153: $filecom[8]," </td>\n")
1154: if $hash{'display_attrs_1'} == 1;
1155: $r->print('<td> '.
1156: (localtime($filecom[9]))." </td>\n")
1157: if $hash{'display_attrs_2'} == 1;
1158: $r->print('<td> '.
1159: (localtime($filecom[10]))." </td>\n")
1160: if $hash{'display_attrs_3'} == 1;
1161:
1162: if ($hash{'display_attrs_4'} == 1) {
1163: my $author = &Apache::lonnet::metadata($filelink,'author');
1164: $r->print('<td> '.($author eq '' ? ' ' : $author).
1165: " </td>\n");
1166: }
1167: if ($hash{'display_attrs_5'} == 1) {
1168: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1169: # $keywords = ' ' if (!$keywords);
1170: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1171: " </td>\n");
1172: }
1173: if ($hash{'display_attrs_6'} == 1) {
1174: my $lang = &Apache::lonnet::metadata($filelink,'language');
1175: $lang = &Apache::loncommon::languagedescription($lang);
1176: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1177: " </td>\n");
1178: }
1179: if ($hash{'display_attrs_8'} == 1) {
1180: $r->print('<td> </td>');
1181: }
1182: if ($hash{'display_attrs_10'} == 1) {
1183: $r->print('<td> </td>');
1184: }
1185: if ($hash{'display_attrs_11'} == 1) {
1186: $r->print('<td> </td>');
1187: }
1188: if ($hash{'display_attrs_7'} == 1) {
1189: $r->print('<td> </td>');
1190: }
1191: $r->print('</tr>');
1192: }
1193:
1194: }
1195:
1196: sub coursecontext {
1197: my ($r,$filelink)=@_;
1198: my $filesymb=&Apache::lonnet::symbread($filelink);
1199: if ($filesymb) {
1200: my ($map,$index,$resource)=&Apache::lonnet::decode_symb($filesymb);
1201: $r->print(&mt('Already in this course:<br />[_1] in folder/map [_2].<br />',
1202: &Apache::lonnet::gettitle($resource),
1203: &Apache::lonnet::gettitle($map)));
1204: }
1205: }
1206:
1207: sub showpreview {
1208: my ($filelink)=@_;
1209: if ($filelink=~m-^(/ext/|http://)-) {
1210: return &mt('External Resource, preview not enabled');
1211: }
1212: my ($curfext)=($filelink=~/\.(\w+)$/);
1213: my $output='';
1214: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
1215: if ($embstyle eq 'ssi') {
1216: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
1217: '.tmp';
1218: if ((!$env{'form.updatedisplay'}) &&
1219: (-e $cache)) {
1220: open(FH,$cache);
1221: $output=join("\n",<FH>);
1222: close(FH);
1223: } else {
1224: # In update display mode, remove old cache. This is done to retroactively
1225: # clean up course context renderings.
1226: if (-e $cache) {
1227: unlink($cache);
1228: }
1229: $output=&Apache::lonnet::ssi_body($filelink);
1230: # Is access denied? Don't render, don't store
1231: if ($output=~/LONCAPAACCESSCONTROLERRORSCREEN/s) {
1232: $output='';
1233: # Was this rendered in course content? Don't store
1234: } elsif (!&Apache::lonnet::symbread($filelink)) {
1235: open(FH,">$cache");
1236: print FH $output;
1237: close(FH);
1238: }
1239: }
1240: $output='<font size="-2">'.$output.'</font>';
1241: } elsif ($embstyle eq 'img') {
1242: $output='<img alt="'.&mt('Preview').'" src="'.$filelink.'" />';
1243: } elsif ($filelink=~m{^/res/($match_domain)/($match_username)/}) {
1244: $output='<img alt="'.&mt('Preview').'" src="http://'.
1245: &Apache::lonnet::hostname(&Apache::lonnet::homeserver($2,$1)).
1246: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1247: }
1248: return $output;
1249: }
1250:
1251: sub dynmetaprint {
1252: my ($r,$filelink,$item)=@_;
1253: if ($dynhash{$filelink}->{$item}) {
1254: $r->print("\n<br />".$fieldnames{$item}.': '.
1255: &Apache::lonmeta::prettyprint($item,
1256: $dynhash{$filelink}->{$item},
1257: (($env{'form.catalogmode'} ne 'import')?'preview':''),
1258: '',
1259: (($env{'form.catalogmode'} eq 'import')?'document.forms.fileattr':''),1));
1260: }
1261: }
1262:
1263: # ------------------- prints the beginning of a form for directory or file link
1264: sub begin_form {
1265: my ($r,$uri) = @_;
1266: my $anchor = $uri;
1267: $anchor =~ s/\W//g;
1268: $uri=&Apache::loncommon::escape_single($uri);
1269: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1270: '#'.$anchor.
1271: '" onSubmit="return rep_dirpath(\''.$dnum.'\''.
1272: ',document.forms.fileattr.acts.value)" '.
1273: 'enctype="application/x-www-form-urlencoded">'."\n");
1274: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'" />'.
1275: "\n");
1276: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n");
1277: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
1278: $dnum++;
1279: }
1280:
1281: # --------- settings whenever the user causes the indexer window to be launched
1282: sub start_fresh_session {
1283: my ($hash) = @_;
1284: delete $hash->{'form.catalogmode'};
1285: delete $hash->{'form.mode'};
1286: delete $hash->{'form.form'};
1287: delete $hash->{'form.element'};
1288: delete $hash->{'form.omit'};
1289: delete $hash->{'form.only'};
1290: foreach (keys %{$hash}) {
1291: delete $hash->{$_} if (/^(pre_|store)/);
1292: }
1293: }
1294:
1295: # ------------------------------------------------------------------- setvalues
1296: sub setvalues {
1297: # setvalues is used in registerurl to synchronize the database
1298: # hash and environment hashes
1299: my ($H1,$h1key,$H2,$h2key) =@_;
1300: #
1301: if (exists $H2->{$h2key}) {
1302: $H1->{$h1key} = $H2->{$h2key};
1303: } elsif (exists $H1->{$h1key}) {
1304: $H2->{$h2key} = $H1->{$h1key};
1305: }
1306: }
1307:
1308: 1;
1309:
1310: sub cleanup {
1311: if (tied(%hash)){
1312: &Apache::lonnet::logthis('Cleanup indexer: hash');
1313: }
1314: return OK;
1315: }
1316:
1317:
1318:
1319:
1320:
1321: =head1 NAME
1322:
1323: Apache::lonindexer - mod_perl module for cross server filesystem browsing
1324:
1325: =head1 SYNOPSIS
1326:
1327: Invoked by /etc/httpd/conf/srm.conf:
1328:
1329: <LocationMatch "^/res.*/$">
1330: SetHandler perl-script
1331: PerlHandler Apache::lonindexer
1332: </LocationMatch>
1333:
1334: =head1 INTRODUCTION
1335:
1336: This module enables a scheme of browsing across a cross server.
1337:
1338: This is part of the LearningOnline Network with CAPA project
1339: described at http://www.lon-capa.org.
1340:
1341: =head1 BEGIN SUBROUTINE
1342:
1343: This routine is only run once after compilation.
1344:
1345: =over 4
1346:
1347: =item *
1348:
1349: Initializes %language hash table.
1350:
1351: =back
1352:
1353: =head1 HANDLER SUBROUTINE
1354:
1355: This routine is called by Apache and mod_perl.
1356:
1357: =over 4
1358:
1359: =item *
1360:
1361: read in machine configuration variables
1362:
1363: =item *
1364:
1365: see if called from an interactive mode
1366:
1367: =item *
1368:
1369: refresh environment with user database values (in %hash)
1370:
1371: =item *
1372:
1373: define extra fields and buttons in case of special mode
1374:
1375: =item *
1376:
1377: set catalogmodefunctions to have extra needed javascript functionality
1378:
1379: =item *
1380:
1381: print header
1382:
1383: =item *
1384:
1385: evaluate actions from previous page (both cumulatively and chronologically)
1386:
1387: =item *
1388:
1389: output title
1390:
1391: =item *
1392:
1393: get state of file attributes to be showing
1394:
1395: =item *
1396:
1397: output state of file attributes to be showing
1398:
1399: =item *
1400:
1401: output starting row to the indexed file/directory hierarchy
1402:
1403: =item *
1404:
1405: read in what directories have previously been set to "open"
1406:
1407: =item *
1408:
1409: if not at top level, provide an uplink arrow
1410:
1411: =item *
1412:
1413: recursively go through all the directories and output as appropriate
1414:
1415: =item *
1416:
1417: information useful for group import
1418:
1419: =item *
1420:
1421: end the tables
1422:
1423: =item *
1424:
1425: end the output and return
1426:
1427: =back
1428:
1429: =head1 OTHER SUBROUTINES
1430:
1431: =over 4
1432:
1433: =item *
1434:
1435: scanDir - recursive scan of a directory
1436:
1437: =item *
1438:
1439: get_list - get complete matched list based on the uri (returns an array)
1440:
1441: =item *
1442:
1443: match_ext - filters out files based on extensions (returns an array)
1444:
1445: =item *
1446:
1447: display_line - displays one line in appropriate table format
1448:
1449: =item *
1450:
1451: begin_form - prints the beginning of a form for directory or file link
1452:
1453: =item *
1454:
1455: start_fresh_session - settings whenever the user causes the indexer window
1456: to be launched
1457:
1458: =back
1459:
1460: =cut
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