1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.210 2011/10/14 16:58:32 dseaton 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: #SB 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 $diropendb = LONCAPA::tempdir() .
124: "$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: #SB $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
181: $extrafield='<td class="LC_bottom">'.
182: '<img alt="" src="'.$iconpath.'whitespace1.gif"'.
183: ' class="LC_icon" /></td>';
184: $colspan=" colspan='2' ";
185: my $cl=&mt('Close');
186: $closebutton=<<END;
187: <input type="button" name="close" value='$cl' onclick="self.close()" />
188: END
189: }
190: elsif ($env{'form.catalogmode'} eq 'import') {
191: #SB $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
192: $extrafield='<td class="LC_bottom">'.
193: '<img alt="" src="'.$iconpath.'whitespace1.gif"'.
194: ' class="LC_icon" /></td>';
195: $colspan=" colspan='2' ";
196: my $cl=&mt('Close');
197: my $gi=&mt('Import');
198: $closebutton=<<END;
199: <input type="button" name="close" value='$cl' onclick="self.close()" />
200: END
201: $groupimportbutton=<<END;
202: <input type="button" name="groupimport" value='$gi'
203: onclick="javascript:select_group()" />
204: END
205: }
206: # Additions made by Matthew to make the browser a little easier to deal
207: # with in the future.
208: #
209: # $mode (at this time) indicates if we are in edit mode.
210: # $form is the name of the form that the URL is placed when the
211: # selection is made.
212: # $element is the name of the element in $formname which receives
213: # the URL.
214: #&Apache::lonxml::debug('Checking mode, form, element');
215: &setvalues(\%hash,'form.mode' ,\%env,'form.mode' );
216: &setvalues(\%hash,'form.form' ,\%env,'form.form' );
217: &setvalues(\%hash,'form.element' ,\%env,'form.element');
218: &setvalues(\%hash,'form.titleelement',\%env,'form.titleelement');
219: &setvalues(\%hash,'form.only' ,\%env,'form.only' );
220: &setvalues(\%hash,'form.omit' ,\%env,'form.omit' );
221:
222: # Deal with 'omit' and 'only'
223: if (exists $env{'form.omit'}) {
224: @Omit = split(',',$env{'form.omit'});
225: }
226: if (exists $env{'form.only'}) {
227: @Only = split(',',$env{'form.only'});
228: }
229:
230: my $mode = $env{'form.mode'};
231: my ($form,$element,$titleelement);
232: if ($mode eq 'edit' || $mode eq 'parmset') {
233: $form = $env{'form.form'};
234: $element = $env{'form.element'};
235: $titleelement = $env{'form.titleelement'};
236: }
237: #&Apache::lonxml::debug("mode=$mode form=$form element=$element titleelement=$titleelement");
238: # ------ set catalogmodefunctions to have extra needed javascript functionality
239: my $catalogmodefunctions='';
240: if ($env{'form.catalogmode'} eq 'interactive' or
241: $env{'form.catalogmode'} eq 'import') {
242: # The if statement below sets us up to use the old version
243: # by default (ie. if $mode is undefined). This is the easy
244: # way out. Hopefully in the future I'll find a way to get
245: # the calls dealt with in a more comprehensive manner.
246:
247: #
248: # There is now also mode "simple", which is for the simple version of the rat
249: #
250: #
251: if (!defined($mode) || ($mode ne 'edit' && $mode ne 'parmset')) {
252: my $location = "/adm/groupsort?&inhibitmenu=yes&catalogmode=import&";
253: $location .= "mode=".$mode."&";
254: $location .= "acts=";
255: $catalogmodefunctions=<<"END";
256: function select_data(url) {
257: changeURL(url);
258: self.close();
259: }
260: function select_group() {
261: window.location="$location"+document.forms.fileattr.acts.value;
262: }
263: function changeURL(val) {
264: if (opener.inf) {
265: if (opener.inf.document.forms.resinfo.elements.u) {
266: opener.inf.document.forms.resinfo.elements.u.value=val;
267: }
268: }
269: }
270: END
271: } elsif ($mode eq 'edit') { # we are in 'edit' mode
272: my $location = "/adm/groupsort?catalogmode=interactive&";
273: $location .= "form=$form&element=$element&mode=edit&acts=";
274: $catalogmodefunctions=<<END;
275: // mode = $mode
276: function select_data(url) {
277: var location = "/res/?launch=2&form=$form&element=$element&titleelement=$titleelement&acts=" + url;
278: window.location=location;
279: if (window.opener.document.forms["$form"].elements["$element"].value != url) {
280: window.opener.unClean();
281: }
282: }
283: function select_group() {
284: window.location="$location"+document.forms.fileattr.acts.value;
285: }
286:
287: function changeURL(val) {
288: if (window.opener.document) {
289: window.opener.document.forms["$form"].elements["$element"].value=val;
290: } else {
291: alert("The file you selected is: "+val);
292: }
293: }
294: END
295: if (!$titleelement) {
296: $catalogmodefunctions.='function changeTitle(val) {}';
297: } else {
298: $catalogmodefunctions.=<<END;
299: function changeTitle(val) {
300: if (window.opener.document) {
301: window.opener.document.forms["$form"].elements["$titleelement"].value=val;
302: } else {
303: alert("The title of the file you selected is: "+val);
304: }
305: }
306: END
307: }
308: } elsif ($mode eq 'parmset') {
309: my $location = "/adm/groupsort?catalogmode=interactive&";
310: $location .= "form=$form&element=$element&mode=parmset&acts=";
311: $catalogmodefunctions=<<END;
312: // mode = $mode
313: function select_data(url) {
314: changeURL(url);
315: self.close();
316: }
317:
318: function select_group() {
319: window.location="$location"+document.forms.fileattr.acts.value;
320: }
321:
322: function changeURL(val) {
323: if (window.opener.document) {
324: var elementname = "$element";
325: window.opener.document.forms["$form"].elements[elementname].value=val;
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: // <![CDATA[
363: $catalogmodefunctions;
364: function update_only(field) {
365: alert(field.name);
366: }
367: function checkAll() {
368: var numForms = document.forms.length;
369: for (i=0;i<numForms;i++) {
370: var numElements = document.forms[i].elements.length;
371: for (j=0;j<numElements;j++){
372: var fieldName = document.forms[i].elements[j].name;
373: if (fieldName == 'filelink') {
374: document.forms[i].elements[j].checked = true;
375: queue(document.forms[i].name);
376: }
377: }
378: }
379: }
380: function uncheckAll() {
381: var numForms = document.forms.length;
382: for (i=0;i<numForms;i++) {
383: var numElements = document.forms[i].elements.length;
384: for (j=0;j<numElements;j++){
385: var fieldName = document.forms[i].elements[j].name;
386: if (fieldName == 'filelink') {
387: document.forms[i].elements[j].checked = false;
388: queue(document.forms[i].name);
389: }
390: }
391: }
392: }
393: function openWindow(url, wdwName, w, h, toolbar,scrollbar,locationbar) {
394: var xpos = (screen.width-w)/2;
395: xpos = (xpos < 0) ? '0' : xpos;
396: var ypos = (screen.height-h)/2-30;
397: ypos = (ypos < 0) ? '0' : ypos;
398: var options = "width=" + w + ",height=" + h + ",screenx="+xpos+",screeny="+ypos+",";
399: options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
400: options += "menubar=no,toolbar="+toolbar+",location="+locationbar+",directories=no";
401: var newWin = window.open(url, wdwName, options);
402: newWin.focus();
403: }
404: function gothere(val) {
405: window.location=val+'?acts='+document.forms.fileattr.acts.value$inhibit_menu;
406: }
407: // ]]>
408: </script>
409: ENDHEADER
410:
411: my ($headerdom)=($uri=~m{^/res/($match_domain)/});
412:
413: if ($env{'form.catalogmode'}) {
414: # "Popup mode"
415: $r->print(&Apache::loncommon::start_page('Browse published resources',$js,
416: {'only_body' => 1,
417: 'domain' => $headerdom,}));
418: } else {
419: # Only display page header and breadcrumbs in non-popup mode
420: &Apache::lonhtmlcommon::clear_breadcrumbs();
421: &Apache::lonhtmlcommon::add_breadcrumb({
422: 'text' => 'Browse published resources',
423: 'href' => '/res/fhwfdev/?launch=1',
424: });
425: $r->print(&Apache::loncommon::start_page('Browse published resources',$js,
426: {'domain' => $headerdom,})
427: .&Apache::lonhtmlcommon::breadcrumbs()
428: );
429: }
430:
431: # ---------------------------------- get state of file types to be showing
432: if ($env{'form.only'}) {
433: $typeselect = $env{'form.only'};
434: } else {
435: $typeselect = '';
436: }
437:
438: # ---------------------------------- get state of file attributes to be showing
439: if ($env{'form.attrs'}) {
440: for (my $i=0; $i<=16; $i++) {
441: delete $hash{'display_attrs_'.$i};
442: if ($env{'form.attr'.$i} == 1) {
443: $attrchk[$i] = 'checked';
444: $hash{'display_attrs_'.$i} = 1;
445: }
446: }
447: } else {
448: for (my $i=0; $i<=16; $i++) {
449: $attrchk[$i] = 'checked="checked"' if $hash{'display_attrs_'.$i} == 1;
450: }
451: }
452:
453: my @file_categories = &Apache::loncommon::filecategories();
454: my %select_file_categories;
455: my @select_form_order = ('');
456: $select_file_categories{''} = &mt('All file types');
457: foreach my $cat (@file_categories) {
458: my $types = join(",",&Apache::loncommon::filecategorytypes($cat));
459: $select_file_categories{$types} = &mt($cat);
460: push(@select_form_order,$types);
461: }
462: $select_file_categories{'select_form_order'} = \@select_form_order;
463: my $onchange = 'this.form.submit();';
464: my $type_element=
465: &Apache::loncommon::select_form(
466: $typeselect,
467: 'only',
468: \%select_file_categories,$onchange);
469: my $type_selector = '<label>'.&mt('File Type Displayed: [_1]',
470: $type_element).'</label>';
471:
472: # ------------------------------- output state of file attributes to be showing
473: # All versions has to the last item
474: # since it does not take an extra col
475: my %lt=&Apache::lonlocal::texthash(
476: 'av' => 'All versions',
477: 'ud' => 'Update Display',
478: 'pr' => 'Problems',
479: 'gr' => 'Graphics',
480: 'at' => 'All types',
481: 'hd' => 'Display Options'
482: );
483: my @disp_order = ('0','4','5','6','13','1','2','3','10','14','8','11','7','12','15','16');
484: my %disp_options = &Apache::lonlocal::texthash (
485: 0 => 'Title',
486: 4 => 'Author',
487: 5 => 'Keywords',
488: 6 => 'Language',
489: 13 => 'Notes',
490: 1 => 'Size',
491: 2 => 'Last access',
492: 3 => 'Last modified',
493: 10 => 'Source Available',
494: 14 => 'Abstract',
495: 8 => 'Statistics',
496: 11 => 'Linked/Related Resources',
497: 7 => 'Show resource',
498: 12 => 'Subject',
499: 15 => 'Grade Level',
500: 16 => 'Standards',
501: );
502: my $cell = 0;
503: my $numinrow = 4;
504: $r->print('
505: <form method="post" name="fileattr" action="'.$uri.'" enctype="application/x-www-form-urlencoded">
506: <fieldset>
507: <legend>'.$lt{'hd'}.'</legend>
508: <table style=" border-collapse: collapse; border-style: none;">'."\n");
509: foreach my $item (@disp_order) {
510: my $style = 'padding-left: 12px; padding-right: 8px;';
511: if ($cell%$numinrow == 0) {
512: $r->print('<tr>');
513: }
514: $cell ++;
515: if ($cell > 3 * $numinrow) {
516: $style .= ' padding-bottom: 6px;';
517: }
518: if (defined($disp_options{$item})) {
519: $r->print('<td style="'.$style.'"><span class="LC_nobreak">'.
520: '<label><input type="checkbox" name="attr'.$item.'" value="1" '.
521: $attrchk[$item].' onclick="this.form.submit();" /> '.$disp_options{$item}.
522: '</label></span></td>'."\n");
523: }
524: if ($cell > 1 && $cell%$numinrow == 0) {
525: $r->print('</tr>');
526: }
527: }
528: $r->print(<<END);
529: <tr>
530: <td style="font-style: italic; border-top: 1px solid black; padding-top: 6px">
531: <label><input type="checkbox" name="attr9" value="1" $attrchk[9] onclick="this.form.submit();" /> $lt{'av'}</label>
532: </td>
533: <td colspan="3" style="padding-left:8px; padding-top: 4px; font-style: italic; border-top: 1px solid black; padding-top: 8px">$type_selector</td>
534: </tr>
535: </table>
536: <input type="hidden" name="attrs" value="1" />
537: </fieldset>
538: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
539: <input type="hidden" name="acts" value="" />
540: $closebutton $groupimportbutton
541: END
542: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
543:
544: # -------------- Filter out sequence containment in crumbs and "recent folders"
545: my $storeuri=$uri;
546: $storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
547: $storeuri=~s/\/+/\//g;
548: # ---------------------------------------------------------------- Bread crumbs
549: $r->print(
550: '<p>'
551: .&Apache::lonhtmlcommon::crumbs(
552: $storeuri,
553: '',
554: '',
555: (($env{'form.catalogmode'} eq 'import')?
556: 'document.forms.fileattr':''))
557: .'<br />'
558: .&Apache::lonhtmlcommon::select_recent(
559: 'residx',
560: 'resrecent',
561: '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();')
562: .'</p>'
563: );
564: # -------------------------------------------------------- Resource Home Button
565: my $reshome=$env{'course.'.$env{'request.course.id'}.'.reshome'};
566: if ($reshome) {
567: $r->print("<span class=\"LC_fontsize_large\"><a href='");
568: if ($env{'form.catalogmode'} eq 'import') {
569: $r->print('javascript:document.forms.fileattr.action="'.&Apache::loncommon::inhibit_menu_check($reshome).'";document.forms.fileattr.submit();');
570: } else {
571: $r->print($reshome);
572: }
573: $r->print("'>".&mt('Home').'</a></span>');
574: }
575: $r->print('</form>');
576: # ------------------------------------------------------ Remember where we were
577: &Apache::loncommon::storeresurl($storeuri);
578: &Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
579: # -------------------------------------------------- Check All and Uncheck all
580: if ($env{'form.catalogmode'} eq 'import') {
581: $r->print('<p><input type="button" value="'.&mt("Check All").'" id="checkallbutton" onclick="javascript:checkAll()" />');
582: $r->print('<input type="button" value="'.&mt("Uncheck All").'" id="uncheckallbutton" onclick="javascript:uncheckAll()" /></p>');
583: }
584: # ----------------- output starting row to the indexed file/directory hierarchy
585: #$r->print(&initdebug());
586: #$r->print(&writedebug("Omit:@Omit")) if (@Omit);
587: #$r->print(&writedebug("Only:@Only")) if (@Only);
588: $r->print(&Apache::loncommon::start_data_table("LC_tableBrowseRes")
589: .&Apache::loncommon::start_data_table_header_row());
590: $r->print("<th $colspan>".&mt('Name')."</th>\n");
591: $r->print("<th></th>\n");
592: $r->print("<th>".&mt('Title')."</th>\n")
593: if ($hash{'display_attrs_0'} == 1);
594: $r->print('<th class="LC_right">'.&mt("Size")." (".&mt("bytes").") ".
595: "</th>\n") if ($hash{'display_attrs_1'} == 1);
596: $r->print("<th>".&mt("Last accessed")."</th>\n")
597: if ($hash{'display_attrs_2'} == 1);
598: $r->print("<th>".&mt("Last modified")."</th>\n")
599: if ($hash{'display_attrs_3'} == 1);
600: $r->print("<th>".&mt("Author(s)")."</th>\n")
601: if ($hash{'display_attrs_4'} == 1);
602: $r->print("<th>".&mt("Keywords")."</th>\n")
603: if ($hash{'display_attrs_5'} == 1);
604: $r->print("<th>".&mt("Language")."</th>\n")
605: if ($hash{'display_attrs_6'} == 1);
606: $r->print("<th>".&mt("Usage Statistics")." <br />(".
607: &mt("Courses/Network Hits").") ".&mt('updated periodically')."</th>\n")
608: if ($hash{'display_attrs_8'} == 1);
609: $r->print("<th>".&mt("Source Available")."</th>\n")
610: if ($hash{'display_attrs_10'} == 1);
611: $r->print("<th>".&mt("Linked/Related Resources")."</th>\n")
612: if ($hash{'display_attrs_11'} == 1);
613: $r->print("<th>".&mt("Resource")."</th>\n")
614: if ($hash{'display_attrs_7'} == 1);
615: $r->print("<th>".&mt("Subject")."</th>\n")
616: if ($hash{'display_attrs_12'} == 1);
617: $r->print("<th>".&mt("Notes")."</th>\n")
618: if ($hash{'display_attrs_13'} == 1);
619: $r->print("<th>".&mt("Abstract")."</th>\n")
620: if ($hash{'display_attrs_14'} == 1);
621: $r->print("<th>".&mt("Grade Level")."</th>\n")
622: if ($hash{'display_attrs_15'} == 1);
623: $r->print("<th>".&mt("Standards")."</th>\n")
624: if ($hash{'display_attrs_16'} == 1);
625:
626: $r->print(&Apache::loncommon::end_data_table_header_row());
627:
628:
629:
630: # ----------------- read in what directories have previously been set to "open"
631: foreach (keys %hash) {
632: if ($_ =~ /^diropen_status_/) {
633: my $key = $_;
634: $key =~ s/^diropen_status_//;
635: $dirs{$key} = $hash{$_};
636: }
637: }
638:
639: if ($env{'form.openuri'}) { # take care of review and refresh options
640: my $uri=$env{'form.openuri'};
641: if (exists($hash{'diropen_status_'.$uri})) {
642: my $cursta = $hash{'diropen_status_'.$uri};
643: $dirs{$uri} = 'open';
644: $hash{'diropen_status_'.$uri} = 'open';
645: if ($cursta eq 'open') {
646: $dirs{$uri} = 'closed';
647: $hash{'diropen_status_'.$uri} = 'closed';
648: }
649: } else {
650: $hash{'diropen_status_'.$uri} = 'open';
651: $dirs{$uri} = 'open';
652: }
653: }
654:
655: my $toplevel;
656: my $indent = 0;
657: $uri = $uri.'/' if $uri !~ /.*\/$/;
658:
659: if ($env{'form.dirPointer'} ne 'on') {
660: $hash{'top.level'} = $uri;
661: $toplevel = $uri;
662: } else {
663: $toplevel = $hash{'top.level'};
664: }
665:
666: # -------------------------------- if not at top level, provide an uplink arrow
667: if ($toplevel ne '/res/'){
668: my (@uri_com) = split(/\//,$uri);
669: pop @uri_com;
670: my $upone = join('/',@uri_com);
671: my @list = qw (0);
672: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
673: $indent = 1;
674: }
675:
676: # -------- recursively go through all the directories and output as appropriate
677: &scanDir ($r,$toplevel,$indent,\%hash);
678:
679: # -------------------------------------------------------------- end the tables
680: $r->print(&Apache::loncommon::end_data_table());
681:
682: # ---------------------------- embed hidden information useful for group import
683: $r->print("<form name='fnum' action=''>");
684: $r->print("<input type='hidden' name='fnum' value='$fnum' /></form>");
685:
686: # --------------------------------------------------- end the output and return
687: $r->print(&Apache::loncommon::end_page()."\n");
688: }
689: if(! $c->aborted()) {
690: # write back into the temporary file
691: my %dbfile;
692: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
693: while (my($key,$value) = each(%hash)) {
694: $dbfile{$key}=$value;
695: }
696: untie(%dbfile);
697: }
698: }
699:
700: return OK;
701: }
702:
703: # ----------------------------------------------- recursive scan of a directory
704: sub scanDir {
705: my ($r,$startdir,$indent,$hashref)=@_;
706: my $c = $r->connection();
707: my ($compuri,$curdir);
708: my $dirptr=16384;
709: my $obs;
710: $indent++;
711: my %dupdirs = %dirs;
712: my @list=&get_list($r,$startdir);
713: foreach my $line (@list) {
714: return if ($c->aborted());
715: #This is a kludge, sorry aboot this
716: my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
717: next if($strip =~ /.*\.meta$/ | $obs eq '1');
718: my (@fileparts) = split(/\./,$strip);
719: if ($hash{'display_attrs_9'} != 1) {
720: # if not all versions to be shown
721: if (scalar(@fileparts) >= 3) {
722: my $fext = pop @fileparts;
723: my $ov = pop @fileparts;
724: my $fname = join ('.',@fileparts,$fext);
725: next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
726: }
727: }
728:
729: if ($dom eq 'domain') {
730: # dom list has full path /res/<domain name>/ already
731: $curdir='';
732: $compuri = (split(/\&/,$line))[0];
733: } else {
734: # user, dir & file have name only, i.e., w/o path
735: $compuri = join('',$startdir,$strip,'/');
736: $curdir = $startdir;
737: }
738: my $diropen = 'closed';
739: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
740: while (my ($key,$val)= each %dupdirs) {
741: if ($key eq $compuri and $val eq "open") {
742: $diropen = "opened";
743: delete($dupdirs{$key});
744: delete($dirs{$key});
745: }
746: }
747: }
748: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
749: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
750: }
751: $indent--;
752: }
753:
754: # --------------- get complete matched list based on the uri (returns an array)
755: sub get_list {
756: my ($r,$uri)=@_;
757: my @list=();
758:
759: (my $luri = $uri) =~ s/\//_/g;
760: if ($env{'form.updatedisplay'}) {
761: foreach (keys %hash) {
762: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
763: delete $hash{$_} if ($_ =~ /^dirlist_timestamp_files_/);
764: }
765: }
766:
767: if (defined($hash{'dirlist_files_'.$luri}) &&
768: $hash{'dirlist_timestamp_files_'.$luri}+600 > (time)) {
769: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
770: } elsif ($uri=~/\.(page|sequence)\/$/) {
771: # is a page or a sequence
772: $uri=~s/\/$//;
773: $uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
774: $uri=~s/\/+/\//g;
775: foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
776: my @ratpart=split(/\:/,$_);
777: push(@list,&LONCAPA::map::qtescape($ratpart[1]));
778: }
779: $hash{'dirlist_files_'.$luri} = join("\n",@list);
780: } else {
781: # is really a directory
782: @list = &Apache::lonnet::dirlist($uri);
783: $hash{'dirlist_files_'.$luri} = join("\n",@list);
784: $hash{'dirlist_timestamp_files_'.$luri} = time;
785: }
786: #Checking for error messages associated with empty directories or inaccessible servers (See Bug 4984)
787: if($list[0] eq 'no_such_dir' || $list[0] eq 'no_such_host') {
788: $r->print("<p class='LC_info'>" . &mt("Directory does not exist."). "</p>");
789: }
790: elsif($list[0] eq 'con_lost') {
791: $r->print("<p class='LC_info'>" . &mt("Directory temporarily not accessible."). "</p>");
792: }
793:
794: return @list=&match_ext($r,@list);
795: }
796:
797: sub dynmetaread {
798: my $uri=shift;
799: if (($hash{'display_attrs_8'}==1) || ($hash{'display_attrs_11'}==1)) {
800: # We don't want the filename
801: $uri=~s/\/[^\/]+$//;
802: # Did we already see this?
803: my $builddir=$uri;
804: while ($builddir) {
805: if ($dynread{$builddir}) {
806: return 0;
807: }
808: $builddir=~s/\/[^\/]+$//;
809: }
810: # Actually get the data
811: %dynhash=
812: (%dynhash,&Apache::lonmeta::get_dynamic_metadata_from_sql($uri.'/'));
813: # Remember that we got it
814: $dynread{$uri}=1;
815: }
816: }
817:
818: sub initdebug {
819: my $start_page=
820: &Apache::loncommon::start_page('Debug',undef,
821: {'only_body' => 1,});
822: $start_page =~ s/\n/ /g;
823: return <<ENDJS;
824: <script type="text/javascript">
825: var debugging = true;
826: if (debugging) {
827: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
828: }
829:
830: function output(text) {
831: if (debugging) {
832: debuggingWindow.document.writeln(text);
833: }
834: }
835: output('$start_page<pre>');
836: </script>
837: ENDJS
838: }
839:
840: sub writedebug {
841: my ($text) = @_;
842: return "<script type=\"text/javascript\">output('$text');</script>";
843: }
844:
845: # -------------------- filters out files based on extensions (returns an array)
846: sub match_ext {
847: my ($r,@packlist)=@_;
848: my @trimlist;
849: my $nextline;
850: my @fileext;
851: my $dirptr=16384;
852:
853: foreach my $line (@packlist) {
854: chomp $line;
855: $line =~ s/^\/home\/httpd\/html//;
856: my @unpackline = split (/\&/,$line);
857: next if ($unpackline[0] eq '.');
858: next if ($unpackline[0] eq '..');
859: my @filecom = split (/\./,$unpackline[0]);
860: my $fext = pop(@filecom);
861: my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
862: if ($fnptr == 0 and $unpackline[3] ne "") {
863: my $embstyle = &Apache::loncommon::fileembstyle($fext);
864: push @trimlist,$line if (defined($embstyle) &&
865: ($embstyle ne 'hdn' or $fext eq 'meta'));
866: } else {
867: push @trimlist,$line;
868: }
869: }
870: @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
871: return @trimlist;
872: }
873:
874: # ------------------------------- displays one line in appropriate table format
875: sub display_line {
876: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
877: my (@pathfn, $fndir);
878: # there could be relative paths (files actually belonging into this directory)
879: # or absolute paths (for example, from sequences)
880: my $absolute;
881: my $pathprefix;
882: if ($line=~m|^/res/| && $startdir ne '') {
883: $absolute=1;
884: $pathprefix='';
885: } else {
886: $absolute=0;
887: $pathprefix=$startdir;
888: }
889: my $dirptr=16384;
890: #SB my $fileclr="#ffffe6";
891: my $iconpath= $r->dir_config('lonIconsURL') . '/';
892:
893: my @filecom = split (/\&/,$line);
894: my @pathcom = split (/\//,$filecom[0]);
895: my $listname = $pathcom[scalar(@pathcom)-1];
896: my $fnptr = $filecom[3]&$dirptr;
897: my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
898: $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
899: my $nowOpen = ($diropen eq 'opened' ? 1 : 0);
900:
901: my $tabtag='</td>';
902: my $i=0;
903: while ($i<=16) {
904: $tabtag=join('',$tabtag,"<td> </td>")
905: if ($i != 9 &&
906: $hash{'display_attrs_'.$i} == 1);
907: $i++;
908: }
909: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
910:
911: # display uplink arrow
912: if ($filecom[1] eq 'viewOneUp') {
913: my $updir=$startdir;
914: # -------------- Filter out sequence containment in crumbs and "recent folders"
915: $updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
916: $updir=~s/\/+/\//g;
917:
918: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
919: $r->print(&Apache::loncommon::start_data_table_row()); # valign="$valign" ?!?
920: $r->print($extrafield);
921: $r->print("<td>\n");
922: $r->print ('<form method="post" name="dirpathUP" action="'.$updir.
923: '/" '.
924: 'onsubmit="return rep_dirpath(\'UP\','.
925: 'document.forms.fileattr.acts.value)" '.
926: 'enctype="application/x-www-form-urlencoded"'.
927: '>'."\n");
928: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
929: $r->print ('<input type="hidden" name="openuri" value="'.
930: $startdir.'" />'."\n");
931: $r->print ('<input type="hidden" name="acts" value="" />'."\n");
932: $r->print ('<a href="#" onclick="document.dirpathUP.submit()"><img src="'.$iconpath.'arrow.up.gif"');
933: $r->print (' alt="'.$msg.'" class="LC_fileicon" />'.
934: "\n");
935: $r->print(&mt("Up")."</a></form></td><td>$tabtag");
936: $r->print(&Apache::loncommon::end_data_table_row());
937: return OK;
938: }
939: # Do we have permission to look at this?
940: if($filecom[15] ne '1') { return OK if ((!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])) && (!&Apache::lonnet::allowed('bro',$pathprefix.$filecom[0]))); }
941:
942: # make absolute links appear on different background
943: #SB if ($absolute) { $fileclr='#ccdd99'; }
944:
945: # display domain
946: if ($filecom[1] eq 'domain') {
947: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n")
948: if ($env{'form.dirPointer'} eq "on");
949: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
950: $r->print(&Apache::loncommon::start_data_table_row()); # valign="$valign" ?!?"
951: $r->print($extrafield);
952: $r->print("<td>");
953: &begin_form ($r,$filecom[0]);
954: my $anchor = $filecom[0];
955: $anchor =~ s/\W//g;
956: $r->print ('<a name="'.$anchor.'"></a>');
957: $r->print ('<input type="hidden" name="acts" value="" />');
958: $r->print ('<a href="#" onclick="document.dirpath'.($dnum-1).'.submit()"><img src="'.$iconpath.'arrow.'.($nowOpen ? "open" : "closed" ).'.gif"');
959: $r->print (' alt="'.$msg.'" class="LC_fileicon" /></a>'.
960: "\n");
961: my $quotable_filecom = &Apache::loncommon::escape_single($filecom[0]);
962: $r->print ('<a href="javascript:gothere(\''.$quotable_filecom.
963: '\')"><img alt="" src="'.$iconpath.'server.gif"');
964: $r->print (' class="LC_fileicon" />'."\n");
965: $r->print (&mt("Domain")." - $listname </a>");
966: if (&Apache::lonnet::domain($listname,'description')) {
967: $r->print("<br />(".&Apache::lonnet::domain($listname,'description').
968: ")");
969: }
970: $r->print("</form></td><td>$tabtag");
971: $r->print(&Apache::loncommon::end_data_table_row());
972: return OK;
973:
974: # display user directory
975: }
976: if ($filecom[1] eq 'user') {
977: # $r->print("<tr valign=$valign bgcolor=\"$fileclr\">$extrafield");
978: my $curdir = $startdir.$filecom[0].'/';
979: my $anchor = $curdir;
980: $anchor =~ s/\W//g;
981: #SB $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
982: $r->print(&Apache::loncommon::start_data_table_row()
983: .$extrafield.'<td class="LC_'.$valign.'">');
984: &begin_form ($r,$curdir);
985: $r->print ('<a name="'.$anchor.'"></a><img alt="" src="'.$iconpath.
986: 'whitespace_21.gif" class="LC_icon" />'."\n");
987: $r->print ('<input type="hidden" name="acts" value="" />');
988: $r->print ('<a href="#" onclick="document.dirpath'.($dnum-1).'.submit()">');
989: $r->print ('<img src="'.$iconpath.'arrow.'.($nowOpen ? "open" : "closed" ).
990: '.gif" class="LC_fileicon"');
991: $r->print (' alt="'.$msg.'"/></a>'.
992: "\n");
993: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
994: $r->print ('<a href="javascript:gothere(\''.$quotable_curdir
995: .'\')"><img alt="'.$msg.'" src="'.
996: $iconpath.'quill.gif" class="LC_fileicon" />');
997: my $domain=(split(m|/|,$startdir))[2];
998: my $plainname=&Apache::loncommon::plainname($listname,$domain);
999: $r->print ($listname.'</a>');
1000:
1001: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
1002: # Wishlistlink
1003: $r->print('</form></td><td><a href="javascript:;" '.
1004: 'title="'.&mt('Set a link for this folder to wishlist').'" '.
1005: 'onclick="set_wishlistlink('."'$plainname','$startdir$listname'".')">'.
1006: '<img class="LC_icon" src="/res/adm/pages/wishlist.png" '.
1007: 'alt="'.&mt('set wishlistlink').'" style="width:22px;"/></a>'.$tabtag);
1008: $r->print(&Apache::loncommon::end_data_table_row());
1009: return OK;
1010: }
1011:
1012: # display file
1013: if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
1014: my $title;
1015: my $filelink = $pathprefix.$filecom[0];
1016: if ($hash{'display_attrs_0'} == 1) {
1017: $title = &Apache::lonnet::gettitle($filelink);
1018: }
1019: my @file_ext = split (/\./,$listname);
1020: my $curfext = $file_ext[-1];
1021: if (@Omit) {
1022: foreach (@Omit) { return OK if (lc($curfext) eq $_); }
1023: }
1024: if (@Only) {
1025: my $skip = 1;
1026: foreach (@Only) { $skip = 0 if (lc($curfext) eq $_); }
1027: return OK if ($skip > 0);
1028: }
1029: # Set the icon for the file
1030: my $iconname = &Apache::loncommon::icon($listname);
1031: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">);
1032: $r->print(&Apache::loncommon::start_data_table_row()); #SB valign="$valign" ?!?
1033: $r->print('<td class="LC_middle LC_nobreak">');
1034:
1035: if ($env{'form.catalogmode'} eq 'interactive') {
1036: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
1037: $r->print("<a href=\"javascript:select_data(\'",
1038: $quotable_filelink,"')\">");
1039: $r->print("<img alt=\"\" src='",$iconpath,"select.gif' class='LC_icon' /></a>".
1040: "\n");
1041: $r->print('</td><td class="LC_middle">');
1042: } elsif ($env{'form.catalogmode'} eq 'import') {
1043: $r->print("<form name='form$fnum' action=''>\n");
1044: $r->print("<input type='checkbox' name='filelink"."' ".
1045: "value='$filelink' onclick='".
1046: "javascript:queue(\"form$fnum\")' ");
1047: if ($hash{'store_'.$filelink}) {
1048: $r->print("checked");
1049: }
1050: $r->print(" />\n");
1051: $r->print('</form></td><td class="LC_middle">');
1052: $hash{"pre_${fnum}_link"}=$filelink;
1053: $hash{"pre_${fnum}_title"}=$title;
1054: if (!$hash{"pre_${fnum}_title"}) {
1055: $hash{"pre_${fnum}_title"} = 'Not_retrieved';
1056: }
1057: $fnum++;
1058: }
1059: # Form to open or close sequences
1060: if ($filelink=~/\.(page|sequence)$/) {
1061: my $curdir = $startdir.$filecom[0].'/';
1062: &begin_form($r,$curdir);
1063: $indent--;
1064: }
1065: # General indentation
1066: my $count = 0;
1067: while ($count < $indent) {
1068: $r->print('<img alt="" src="'.$iconpath.'whitespace_21.gif"
1069: class="LC_icon" />');
1070: $count++;
1071: }
1072: # Sequence open/close icon
1073: if ($filelink=~/\.(page|sequence)$/) {
1074: my $curdir = $startdir.$filecom[0].'/';
1075: my $anchor = $curdir;
1076: $anchor =~ s/\W//g;
1077: $r->print ('<input type="hidden" name="acts" value="" />');
1078: $r->print ('<a name="'.$anchor.'"></a>');
1079: $r->print ('<a href="#" onclick="document.dirpath'.($dnum-1).'.submit()">');
1080: $r->print ('<img src="'.$iconpath.'arrow.'.($nowOpen ? "open" : "closed" ).
1081: '.gif" class="LC_fileicon"');
1082: $r->print (' alt="'.$msg.'" /></a>'.
1083: "\n");
1084: }
1085: # Filetype icons
1086: $r->print("<img alt=\"\" src='$iconname' class='LC_fileicon' />\n");
1087: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
1088:
1089: $r->print (" <a href=\"javascript:openWindow('".$quotable_filelink.
1090: "?inhibitmenu=yes','previewfile','450','500','no','yes','yes');\"".
1091: " target=\"_self\">$listname</a> ");
1092: $quotable_filelink = &Apache::loncommon::escape_single($filelink.'.meta');
1093: &Apache::loncommon::inhibit_menu_check(\$quotable_filelink);
1094: $r->print (" (<a href=\"javascript:openWindow('".$quotable_filelink.
1095: "?inhibitmenu=yes','metadatafile','500','550','no','yes','no');\" ".
1096: " target=\"_self\">".&mt('metadata')."</a>) ");
1097: # Close form to open/close sequence
1098: if ($filelink=~/\.(page|sequence)$/) {
1099: $r->print('</form>');
1100: }
1101: $r->print("</td>\n");
1102: # Wishlistlink
1103: $r->print('<td><a href="javascript:;" title="'.&mt('Set a link for this resource to wishlist').'" '.
1104: 'onclick="set_wishlistlink('."'".&Apache::lonnet::gettitle($filelink).
1105: "','$startdir$listname'".')">'.
1106: '<img class="LC_icon" src="/res/adm/pages/wishlist.png" '.
1107: 'alt="'.&mt('set wishlistlink').'" style="width:22px;"/></a></td>');
1108: if ($hash{'display_attrs_0'} == 1) {
1109: $r->print('<td> '.($title eq '' ? ' ' : $title).
1110: ' </td>'."\n");
1111: }
1112: $r->print('<td class="LC_right"> ',
1113: $filecom[8]," </td>\n")
1114: if $hash{'display_attrs_1'} == 1;
1115: $r->print('<td class="LC_nobreak"> '.
1116: (&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
1117: if $hash{'display_attrs_2'} == 1;
1118: $r->print('<td class="LC_nobreak"> '.
1119: (&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
1120: if $hash{'display_attrs_3'} == 1;
1121:
1122: if ($hash{'display_attrs_4'} == 1) {
1123: my $author = &Apache::lonnet::metadata($filelink,'author');
1124: $r->print('<td class="LC_nobreak"> '.($author eq '' ? ' ' : $author).
1125: " </td>\n");
1126: }
1127: if ($hash{'display_attrs_5'} == 1) {
1128: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1129: # $keywords = ' ' if (!$keywords);
1130: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1131: " </td>\n");
1132: }
1133:
1134: if ($hash{'display_attrs_6'} == 1) {
1135: my $lang = &Apache::lonnet::metadata($filelink,'language');
1136: $lang = &Apache::loncommon::languagedescription($lang);
1137: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1138: " </td>\n");
1139: }
1140: if ($hash{'display_attrs_8'} == 1) {
1141: # statistics
1142: &dynmetaread($filelink);
1143: $r->print("<td>");
1144:
1145: for (qw(count course stdno avetries difficulty disc clear technical
1146: correct helpful depth)) {
1147:
1148: dynmetaprint($r,$filelink,$_);
1149: }
1150:
1151: $r->print(" </td>\n");
1152:
1153: }
1154: if ($hash{'display_attrs_10'} == 1) {
1155: my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
1156: if($source eq 'open') {
1157: my $sourcelink = &Apache::lonsource::make_link($filelink,$listname);
1158: my $quotable_sourcelink = &Apache::loncommon::escape_single($sourcelink);
1159: &Apache::loncommon::inhibit_menu_check(\$quotable_sourcelink);
1160: $r->print('<td>'."<a href=\"javascript:openWindow('"
1161: .$quotable_sourcelink.
1162: "', 'previewsource', '700', '700', 'no', 'yes','yes');\"".
1163: " target=\"_self\">".&mt('Source Code')."</a> "."</td>\n");
1164: } else { #A cuddled else. :P
1165: $r->print("<td> </td>\n");
1166: }
1167: }
1168: if ($hash{'display_attrs_11'} == 1) {
1169: # links
1170: &dynmetaread($filelink);
1171: $r->print('<td>');
1172: &coursecontext($r,$filelink);
1173: for (qw(goto_list comefrom_list sequsage_list dependencies course_list)) {
1174: dynmetaprint($r,$filelink,$_);
1175: }
1176: $r->print('</td>');
1177: }
1178:
1179:
1180:
1181: if ($hash{'display_attrs_7'} == 1) {
1182: # Show resource
1183: my $output=&showpreview($filelink);
1184: $r->print('<td class="LC_fontsize_medium">'.($output eq '' ? ' ':$output).
1185: " </td>\n");
1186: }
1187:
1188: if ($hash{'display_attrs_12'} == 1) {
1189: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1190: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1191: " </td>\n");
1192: }
1193:
1194: if ($hash{'display_attrs_13'} == 1) {
1195: my $notes = &Apache::lonnet::metadata($filelink,'notes');
1196: $r->print('<td> '.($notes eq '' ? ' ' : $notes).
1197: " </td>\n");
1198: }
1199:
1200: if ($hash{'display_attrs_14'} == 1) {
1201: my $abstract = &Apache::lonnet::metadata($filelink,'abstract');
1202: $r->print('<td> '.($abstract eq '' ? ' ' : $abstract).
1203: " </td>\n");
1204: }
1205:
1206: if ($hash{'display_attrs_15'} == 1) {
1207: my $gradelevel = &Apache::lonnet::metadata($filelink,'gradelevel');
1208: $r->print('<td> '.($gradelevel eq '' ? ' ' : $gradelevel).
1209: " </td>\n");
1210: }
1211:
1212: if ($hash{'display_attrs_16'} == 1) {
1213: my $standards = &Apache::lonnet::metadata($filelink,'standards');
1214: $r->print('<td> '.($standards eq '' ? ' ' : $standards).
1215: " </td>\n");
1216: }
1217:
1218: $r->print(&Apache::loncommon::end_data_table_row());
1219: }
1220:
1221:
1222:
1223: # -- display directory
1224: if ($fnptr == $dirptr) {
1225: my $curdir = $startdir.$filecom[0].'/';
1226: my $anchor = $curdir;
1227: $anchor =~ s/\W//g;
1228: #SB $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
1229: $r->print(&Apache::loncommon::start_data_table_row()); # SB: bgcolor suggestion: darkgrey ("LC_info_row"?!?)
1230: # $r->print('<tr class="LC_info_row">');
1231: $r->print($extrafield.'<td class="LC_middle LC_nobreak">');
1232: &begin_form ($r,$curdir);
1233: my $indentm1 = $indent-1;
1234: my $count = 0;
1235: while ($count < $indentm1) {
1236: $r->print ('<img alt="" src="',$iconpath
1237: ,'whitespace_21.gif" class="LC_icon" />');
1238: $count++;
1239: }
1240: $r->print ('<input type="hidden" name="acts" value="" />');
1241: $r->print ('<a name="'.$anchor.'"></a>');
1242: $r->print ('<a href="#" onclick="document.dirpath'.($dnum-1).'.submit()"><img src="'.$iconpath.
1243: 'arrow.'.($nowOpen ? "open" : "closed" ).'.gif"');
1244: $r->print (' alt="'.$msg.'" class="LC_fileicon" /></a>'.
1245: "\n");
1246: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
1247:
1248: my $location = &Apache::loncommon::lonhttpdurl("/adm/lonIcons");
1249: my $icon = "navmap.folder.".($nowOpen ? "open":"closed").'.gif';
1250: $r->print ('<a href="javascript:gothere('
1251: ."'$quotable_curdir'".');">'
1252: .'<img class="LC_fileicon" alt="'.&mt('Open Folder').'" src="'
1253: .$location.'/'.$icon.'" />'
1254: ."\n");
1255: $r->print ("$listname</a></form>");
1256: # Wishlistlink
1257: $r->print('</td><td><a href="javascript:;" '.
1258: 'title="'.&mt('Set a link for this folder to wishlist').'" '.
1259: 'onclick="set_wishlistlink('."'$listname','$startdir$listname'".')">'.
1260: '<img class="LC_icon" src="/res/adm/pages/wishlist.png" '.
1261: 'alt="'.&mt('set wishlistlink').'" style="width:22px;"/></a></td>');
1262: # Attributes
1263: my $filelink = $startdir.$filecom[0].'/default';
1264:
1265: if ($hash{'display_attrs_0'} == 1) {
1266: my $title = &Apache::lonnet::gettitle($filelink);
1267: $r->print('<td> '.($title eq '' ? ' ' : $title).
1268: ' </td>'."\n");
1269: }
1270: $r->print('<td class="LC_right"> ',
1271: $filecom[8]," </td>\n")
1272: if $hash{'display_attrs_1'} == 1;
1273: $r->print('<td class="LC_break"> '.
1274: (&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
1275: if $hash{'display_attrs_2'} == 1;
1276: $r->print('<td class="LC_break"> '.
1277: (&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
1278: if $hash{'display_attrs_3'} == 1;
1279:
1280: if ($hash{'display_attrs_4'} == 1) {
1281: my $author = &Apache::lonnet::metadata($filelink,'author');
1282: $r->print('<td> '.($author eq '' ? ' ' : $author).
1283: " </td>\n");
1284: }
1285: if ($hash{'display_attrs_5'} == 1) {
1286: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1287: # $keywords = ' ' if (!$keywords);
1288: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1289: " </td>\n");
1290: }
1291: if ($hash{'display_attrs_6'} == 1) {
1292: my $lang = &Apache::lonnet::metadata($filelink,'language');
1293: $lang = &Apache::loncommon::languagedescription($lang);
1294: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1295: " </td>\n");
1296: }
1297:
1298: if ($hash{'display_attrs_8'} == 1) {
1299: $r->print('<td> </td>');
1300: }
1301: if ($hash{'display_attrs_10'} == 1) {
1302: $r->print('<td> </td>');
1303: }
1304: if ($hash{'display_attrs_7'} == 1) {
1305: $r->print('<td> </td>');
1306: }
1307: if ($hash{'display_attrs_11'} == 1) {
1308: $r->print('<td> </td>');
1309: }
1310: if ($hash{'display_attrs_12'} == 1) {
1311: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1312: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1313: " </td>\n");
1314: }
1315: if ($hash{'display_attrs_13'} == 1) {
1316: my $notes = &Apache::lonnet::metadata($filelink,'notes');
1317: $r->print('<td> '.($notes eq '' ? ' ' : $notes).
1318: " </td>\n");
1319: }
1320:
1321: if ($hash{'display_attrs_14'} == 1) {
1322: my $abstract = &Apache::lonnet::metadata($filelink,'abstract');
1323: $r->print('<td> '.($abstract eq '' ? ' ' : $abstract).
1324: " </td>\n");
1325: }
1326:
1327: if ($hash{'display_attrs_15'} == 1) {
1328: my $gradelevel = &Apache::lonnet::metadata($filelink,'gradelevel');
1329: $r->print('<td> '.($gradelevel eq '' ? ' ' : $gradelevel).
1330: " </td>\n");
1331: }
1332:
1333: if ($hash{'display_attrs_16'} == 1) {
1334: my $standards = &Apache::lonnet::metadata($filelink,'standards');
1335: $r->print('<td> '.($standards eq '' ? ' ' : $standards).
1336: " </td>\n");
1337: }
1338:
1339:
1340: $r->print(&Apache::loncommon::end_data_table_row());
1341: }
1342:
1343: }
1344:
1345: sub coursecontext {
1346: my ($r,$filelink)=@_;
1347: my $filesymb=&Apache::lonnet::symbread($filelink);
1348: if ($filesymb) {
1349: my ($map,$index,$resource)=&Apache::lonnet::decode_symb($filesymb);
1350: $r->print(&mt('Already in this course:<br />[_1] in folder/map [_2].<br />',
1351: &Apache::lonnet::gettitle($resource),
1352: &Apache::lonnet::gettitle($map)));
1353: }
1354: }
1355:
1356: sub showpreview {
1357: my ($filelink)=@_;
1358: if ($filelink=~m-^(/ext/|http://)-) {
1359: return &mt('External Resource, preview not enabled');
1360: }
1361: my ($curfext)=($filelink=~/\.(\w+)$/);
1362: my $output='';
1363: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
1364: if ($embstyle eq 'ssi') {
1365: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
1366: '.tmp';
1367: if ((!$env{'form.updatedisplay'}) &&
1368: (-e $cache)) {
1369: open(FH,$cache);
1370: $output=join("\n",<FH>);
1371: close(FH);
1372: } else {
1373: # In update display mode, remove old cache. This is done to retroactively
1374: # clean up course context renderings.
1375: if (-e $cache) {
1376: unlink($cache);
1377: }
1378: $output=&Apache::lonnet::ssi_body($filelink);
1379: # Is access denied? Don't render, don't store
1380: if ($output=~/LONCAPAACCESSCONTROLERRORSCREEN/s) {
1381: $output='';
1382: # Was this rendered in course content? Don't store
1383: } elsif (!&Apache::lonnet::symbread($filelink)) {
1384: open(FH,">$cache");
1385: print FH $output;
1386: close(FH);
1387: }
1388: }
1389: } elsif ($embstyle eq 'img') {
1390: $output='<img alt="'.&mt('Preview').'" src="'.$filelink.'" />';
1391: } elsif ($filelink=~m{^/res/($match_domain)/($match_username)/}) {
1392: $output='<img alt="'.&mt('Preview').'" src="http://'.
1393: &Apache::lonnet::hostname(&Apache::lonnet::homeserver($2,$1)).
1394: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1395: }
1396: return $output;
1397: }
1398:
1399: sub dynmetaprint {
1400: my ($r,$filelink,$item)=@_;
1401: if ($dynhash{$filelink}->{$item}) {
1402: $r->print("\n<br />".$fieldnames{$item}.': '.
1403: &Apache::lonmeta::prettyprint($item,
1404: $dynhash{$filelink}->{$item},
1405: (($env{'form.catalogmode'} ne 'import')?'preview':''),
1406: '',
1407: (($env{'form.catalogmode'} eq 'import')?'document.forms.fileattr':''),1));
1408: }
1409: }
1410:
1411: # ------------------- prints the beginning of a form for directory or file link
1412: sub begin_form {
1413: my ($r,$uri) = @_;
1414: my $anchor = $uri;
1415: $anchor =~ s/\W//g;
1416: $uri=&Apache::loncommon::escape_single($uri);
1417: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1418: '#'.$anchor.
1419: '" onsubmit="return rep_dirpath(\''.$dnum.'\''.
1420: ',document.forms.fileattr.acts.value)" '.
1421: 'enctype="application/x-www-form-urlencoded">'."\n");
1422: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'" />'.
1423: "\n");
1424: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n");
1425: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
1426: $dnum++;
1427: }
1428:
1429: # --------- settings whenever the user causes the indexer window to be launched
1430: sub start_fresh_session {
1431: my ($hash) = @_;
1432: delete $hash->{'form.catalogmode'};
1433: delete $hash->{'form.mode'};
1434: delete $hash->{'form.form'};
1435: delete $hash->{'form.element'};
1436: delete $hash->{'form.omit'};
1437: delete $hash->{'form.only'};
1438: foreach (keys %{$hash}) {
1439: delete $hash->{$_} if (/^(pre_|store)/);
1440: }
1441: }
1442:
1443: # ------------------------------------------------------------------- setvalues
1444: sub setvalues {
1445: # setvalues is used in registerurl to synchronize the database
1446: # hash and environment hashes
1447: my ($H1,$h1key,$H2,$h2key) =@_;
1448: #
1449: if (exists $H2->{$h2key}) {
1450: $H1->{$h1key} = $H2->{$h2key};
1451: } elsif (exists $H1->{$h1key}) {
1452: $H2->{$h2key} = $H1->{$h1key};
1453: }
1454: }
1455:
1456: 1;
1457:
1458: sub cleanup {
1459: if (tied(%hash)){
1460: &Apache::lonnet::logthis('Cleanup indexer: hash');
1461: }
1462: return OK;
1463: }
1464:
1465:
1466:
1467:
1468:
1469: =head1 NAME
1470:
1471: Apache::lonindexer - mod_perl module for cross server filesystem browsing
1472:
1473: =head1 SYNOPSIS
1474:
1475: Invoked by /etc/httpd/conf/srm.conf:
1476:
1477: <LocationMatch "^/res.*/$">
1478: SetHandler perl-script
1479: PerlHandler Apache::lonindexer
1480: </LocationMatch>
1481:
1482: =head1 INTRODUCTION
1483:
1484: This module enables a scheme of browsing across a cross server.
1485:
1486: This is part of the LearningOnline Network with CAPA project
1487: described at http://www.lon-capa.org.
1488:
1489: =head1 BEGIN SUBROUTINE
1490:
1491: This routine is only run once after compilation.
1492:
1493: =over 4
1494:
1495: =item *
1496:
1497: Initializes %language hash table.
1498:
1499: =back
1500:
1501: =head1 HANDLER SUBROUTINE
1502:
1503: This routine is called by Apache and mod_perl.
1504:
1505: =over 4
1506:
1507: =item *
1508:
1509: read in machine configuration variables
1510:
1511: =item *
1512:
1513: see if called from an interactive mode
1514:
1515: =item *
1516:
1517: refresh environment with user database values (in %hash)
1518:
1519: =item *
1520:
1521: define extra fields and buttons in case of special mode
1522:
1523: =item *
1524:
1525: set catalogmodefunctions to have extra needed javascript functionality
1526:
1527: =item *
1528:
1529: print header
1530:
1531: =item *
1532:
1533: evaluate actions from previous page (both cumulatively and chronologically)
1534:
1535: =item *
1536:
1537: output title
1538:
1539: =item *
1540:
1541: get state of file attributes to be showing
1542:
1543: =item *
1544:
1545: output state of file attributes to be showing
1546:
1547: =item *
1548:
1549: output starting row to the indexed file/directory hierarchy
1550:
1551: =item *
1552:
1553: read in what directories have previously been set to "open"
1554:
1555: =item *
1556:
1557: if not at top level, provide an uplink arrow
1558:
1559: =item *
1560:
1561: recursively go through all the directories and output as appropriate
1562:
1563: =item *
1564:
1565: information useful for group import
1566:
1567: =item *
1568:
1569: end the tables
1570:
1571: =item *
1572:
1573: end the output and return
1574:
1575: =back
1576:
1577: =head1 OTHER SUBROUTINES
1578:
1579: =over 4
1580:
1581: =item *
1582:
1583: scanDir - recursive scan of a directory
1584:
1585: =item *
1586:
1587: get_list - get complete matched list based on the uri (returns an array)
1588:
1589: =item *
1590:
1591: match_ext - filters out files based on extensions (returns an array)
1592:
1593: =item *
1594:
1595: display_line - displays one line in appropriate table format
1596:
1597: =item *
1598:
1599: begin_form - prints the beginning of a form for directory or file link
1600:
1601: =item *
1602:
1603: start_fresh_session - settings whenever the user causes the indexer window
1604: to be launched
1605:
1606: =back
1607:
1608: =cut
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