1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.213 2011/12/09 01:04:27 www Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: ###
29:
30: ###############################################################################
31: ## ##
32: ## ORGANIZATION OF THIS PERL MODULE ##
33: ## ##
34: ## 1. Description of functions ##
35: ## 2. Modules used by this module ##
36: ## 3. Choices for different output views (detailed, summary, xml, etc) ##
37: ## 4. BEGIN block (to be run once after compilation) ##
38: ## 5. Handling routine called via Apache and mod_perl ##
39: ## 6. Other subroutines ##
40: ## ##
41: ###############################################################################
42:
43: package Apache::lonindexer;
44:
45: # ------------------------------------------------- modules used by this module
46: use strict;
47: use Apache::lonnet;
48: use Apache::loncommon();
49: use Apache::lonhtmlcommon();
50: use Apache::lonsequence();
51: use Apache::Constants qw(:common);
52: use Apache::lonmeta;
53: use Apache::File;
54: use Apache::lonlocal;
55: use 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_modal' => 1,
169: 'add_wishlist' => 1,
170: 'add_entries' =>
171: {'onload' => "load();"},}
172: ).
173: &Apache::loncommon::end_page());
174: return OK;
175: }
176:
177: # -------------------- refresh environment with user database values (in %hash)
178: &setvalues(\%hash,'form.catalogmode',\%env,'form.catalogmode' );
179:
180: # --------------------- define extra fields and buttons in case of special mode
181: if ($env{'form.catalogmode'} eq 'interactive') {
182: #SB $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
183: $extrafield='<td class="LC_bottom">'.
184: '<img alt="" src="'.$iconpath.'whitespace1.gif"'.
185: ' class="LC_icon" /></td>';
186: $colspan=" colspan='2' ";
187: my $cl=&mt('Close');
188: $closebutton=<<END;
189: <input type="button" name="close" value='$cl' onclick="self.close()" />
190: END
191: }
192: elsif ($env{'form.catalogmode'} eq 'import') {
193: #SB $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
194: $extrafield='<td class="LC_bottom">'.
195: '<img alt="" src="'.$iconpath.'whitespace1.gif"'.
196: ' class="LC_icon" /></td>';
197: $colspan=" colspan='2' ";
198: my $cl=&mt('Close');
199: my $gi=&mt('Import');
200: $closebutton=<<END;
201: <input type="button" name="close" value='$cl' onclick="self.close()" />
202: END
203: $groupimportbutton=<<END;
204: <input type="button" name="groupimport" value='$gi'
205: onclick="javascript:select_group()" />
206: END
207: }
208: # Additions made by Matthew to make the browser a little easier to deal
209: # with in the future.
210: #
211: # $mode (at this time) indicates if we are in edit mode.
212: # $form is the name of the form that the URL is placed when the
213: # selection is made.
214: # $element is the name of the element in $formname which receives
215: # the URL.
216: #&Apache::lonxml::debug('Checking mode, form, element');
217: &setvalues(\%hash,'form.mode' ,\%env,'form.mode' );
218: &setvalues(\%hash,'form.form' ,\%env,'form.form' );
219: &setvalues(\%hash,'form.element' ,\%env,'form.element');
220: &setvalues(\%hash,'form.titleelement',\%env,'form.titleelement');
221: &setvalues(\%hash,'form.only' ,\%env,'form.only' );
222: &setvalues(\%hash,'form.omit' ,\%env,'form.omit' );
223:
224: # Deal with 'omit' and 'only'
225: if (exists $env{'form.omit'}) {
226: @Omit = split(',',$env{'form.omit'});
227: }
228: if (exists $env{'form.only'}) {
229: @Only = split(',',$env{'form.only'});
230: }
231:
232: my $mode = $env{'form.mode'};
233: my ($form,$element,$titleelement);
234: if ($mode eq 'edit' || $mode eq 'parmset') {
235: $form = $env{'form.form'};
236: $element = $env{'form.element'};
237: $titleelement = $env{'form.titleelement'};
238: }
239: #&Apache::lonxml::debug("mode=$mode form=$form element=$element titleelement=$titleelement");
240: # ------ set catalogmodefunctions to have extra needed javascript functionality
241: my $catalogmodefunctions='';
242: if ($env{'form.catalogmode'} eq 'interactive' or
243: $env{'form.catalogmode'} eq 'import') {
244: # The if statement below sets us up to use the old version
245: # by default (ie. if $mode is undefined). This is the easy
246: # way out. Hopefully in the future I'll find a way to get
247: # the calls dealt with in a more comprehensive manner.
248:
249: #
250: # There is now also mode "simple", which is for the simple version of the rat
251: #
252: #
253: if (!defined($mode) || ($mode ne 'edit' && $mode ne 'parmset')) {
254: my $location = "/adm/groupsort?&inhibitmenu=yes&catalogmode=import&";
255: $location .= "mode=".$mode."&";
256: $location .= "acts=";
257: $catalogmodefunctions=<<"END";
258: function select_data(url) {
259: changeURL(url);
260: self.close();
261: }
262: function select_group() {
263: window.location="$location"+document.forms.fileattr.acts.value;
264: }
265: function changeURL(val) {
266: if (opener.inf) {
267: if (opener.inf.document.forms.resinfo.elements.u) {
268: opener.inf.document.forms.resinfo.elements.u.value=val;
269: }
270: }
271: }
272: END
273: } elsif ($mode eq 'edit') { # we are in 'edit' mode
274: my $location = "/adm/groupsort?catalogmode=interactive&";
275: $location .= "form=$form&element=$element&mode=edit&acts=";
276: $catalogmodefunctions=<<END;
277: // mode = $mode
278: function select_data(url) {
279: var location = "/res/?launch=2&form=$form&element=$element&titleelement=$titleelement&acts=" + url;
280: window.location=location;
281: if (window.opener.document.forms["$form"].elements["$element"].value != url) {
282: window.opener.unClean();
283: }
284: }
285: function select_group() {
286: window.location="$location"+document.forms.fileattr.acts.value;
287: }
288:
289: function changeURL(val) {
290: if (window.opener.document) {
291: window.opener.document.forms["$form"].elements["$element"].value=val;
292: } else {
293: alert("The file you selected is: "+val);
294: }
295: }
296: END
297: if (!$titleelement) {
298: $catalogmodefunctions.='function changeTitle(val) {}';
299: } else {
300: $catalogmodefunctions.=<<END;
301: function changeTitle(val) {
302: if (window.opener.document) {
303: window.opener.document.forms["$form"].elements["$titleelement"].value=val;
304: } else {
305: alert("The title of the file you selected is: "+val);
306: }
307: }
308: END
309: }
310: } elsif ($mode eq 'parmset') {
311: my $location = "/adm/groupsort?catalogmode=interactive&";
312: $location .= "form=$form&element=$element&mode=parmset&acts=";
313: $catalogmodefunctions=<<END;
314: // mode = $mode
315: function select_data(url) {
316: changeURL(url);
317: self.close();
318: }
319:
320: function select_group() {
321: window.location="$location"+document.forms.fileattr.acts.value;
322: }
323:
324: function changeURL(val) {
325: if (window.opener.document) {
326: var elementname = "$element";
327: window.opener.document.forms["$form"].elements[elementname].value=val;
328: } else {
329: alert("The file you selected is: "+val);
330: }
331: }
332:
333: END
334: }
335: }
336: $catalogmodefunctions.=<<END;
337: var acts='';
338: function rep_dirpath(suffix,val) {
339: eval("document.forms.dirpath"+suffix+".acts.value=val");
340: }
341: END
342: if ($env{'form.catalogmode'} eq 'import') {
343: $catalogmodefunctions.=<<END;
344: function queue(val) {
345: if (eval("document.forms."+val+".filelink.checked")) {
346: var l=val.length;
347: var v=val.substring(4,l);
348: document.forms.fileattr.acts.value+='1a'+v+'b';
349: }
350: else {
351: var l=val.length;
352: var v=val.substring(4,l);
353: document.forms.fileattr.acts.value+='0a'+v+'b';
354: }
355: }
356: END
357: }
358:
359: my $inhibit_menu = "+'&".&Apache::loncommon::inhibit_menu_check()."'";
360: # ---------------------------------------------------------------- Print Header
361:
362: my $js = <<"ENDHEADER";
363: <script type="text/javascript">
364: // <![CDATA[
365: $catalogmodefunctions;
366: function update_only(field) {
367: alert(field.name);
368: }
369: function checkAll() {
370: var numForms = document.forms.length;
371: for (i=0;i<numForms;i++) {
372: var numElements = document.forms[i].elements.length;
373: for (j=0;j<numElements;j++){
374: var fieldName = document.forms[i].elements[j].name;
375: if (fieldName == 'filelink') {
376: document.forms[i].elements[j].checked = true;
377: queue(document.forms[i].name);
378: }
379: }
380: }
381: }
382: function uncheckAll() {
383: var numForms = document.forms.length;
384: for (i=0;i<numForms;i++) {
385: var numElements = document.forms[i].elements.length;
386: for (j=0;j<numElements;j++){
387: var fieldName = document.forms[i].elements[j].name;
388: if (fieldName == 'filelink') {
389: document.forms[i].elements[j].checked = false;
390: queue(document.forms[i].name);
391: }
392: }
393: }
394: }
395:
396: function openWindow(url, wdwName, w, h, toolbar,scrollbar,locationbar) {
397: var xpos = (screen.width-w)/2;
398: xpos = (xpos < 0) ? '0' : xpos;
399: var ypos = (screen.height-h)/2-30;
400: ypos = (ypos < 0) ? '0' : ypos;
401: var options = "width=" + w + ",height=" + h + ",screenx="+xpos+",screeny="+ypos+",";
402: options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
403: options += "menubar=no,toolbar="+toolbar+",location="+locationbar+",directories=no";
404: var newWin = window.open(url, wdwName, options);
405: newWin.focus();
406: }
407:
408: function gothere(val) {
409: window.location=val+'?acts='+document.forms.fileattr.acts.value$inhibit_menu;
410: }
411: // ]]>
412: </script>
413: ENDHEADER
414:
415: my ($headerdom)=($uri=~m{^/res/($match_domain)/});
416:
417: if ($env{'form.catalogmode'}) {
418: # "Popup mode"
419: $r->print(&Apache::loncommon::start_page('Browse published resources',$js,
420: {'only_body' => 1, 'add_wishlist'=>1, 'add_modal' =>1,
421: 'domain' => $headerdom,}));
422: } else {
423: # Only display page header and breadcrumbs in non-popup mode
424: &Apache::lonhtmlcommon::clear_breadcrumbs();
425: &Apache::lonhtmlcommon::add_breadcrumb({
426: 'text' => 'Browse published resources',
427: 'href' => '/res/fhwfdev/?launch=1',
428: });
429: $r->print(&Apache::loncommon::start_page('Browse published resources',$js,
430: {'domain' => $headerdom,})
431: .&Apache::lonhtmlcommon::breadcrumbs()
432: );
433: }
434:
435: # ---------------------------------- get state of file types to be showing
436: if ($env{'form.only'}) {
437: $typeselect = $env{'form.only'};
438: } else {
439: $typeselect = '';
440: }
441:
442: # ---------------------------------- get state of file attributes to be showing
443: if ($env{'form.attrs'}) {
444: for (my $i=0; $i<=16; $i++) {
445: delete $hash{'display_attrs_'.$i};
446: if ($env{'form.attr'.$i} == 1) {
447: $attrchk[$i] = 'checked';
448: $hash{'display_attrs_'.$i} = 1;
449: }
450: }
451: } else {
452: for (my $i=0; $i<=16; $i++) {
453: $attrchk[$i] = 'checked="checked"' if $hash{'display_attrs_'.$i} == 1;
454: }
455: }
456:
457: my @file_categories = &Apache::loncommon::filecategories();
458: my %select_file_categories;
459: my @select_form_order = ('');
460: $select_file_categories{''} = &mt('All file types');
461: foreach my $cat (@file_categories) {
462: my $types = join(",",&Apache::loncommon::filecategorytypes($cat));
463: $select_file_categories{$types} = &mt($cat);
464: push(@select_form_order,$types);
465: }
466: $select_file_categories{'select_form_order'} = \@select_form_order;
467: my $onchange = 'this.form.submit();';
468: my $type_element=
469: &Apache::loncommon::select_form(
470: $typeselect,
471: 'only',
472: \%select_file_categories,$onchange);
473: my $type_selector = '<label>'.&mt('File Type Displayed: [_1]',
474: $type_element).'</label>';
475:
476: # ------------------------------- output state of file attributes to be showing
477: # All versions has to the last item
478: # since it does not take an extra col
479: my %lt=&Apache::lonlocal::texthash(
480: 'av' => 'All versions',
481: 'ud' => 'Update Display',
482: 'pr' => 'Problems',
483: 'gr' => 'Graphics',
484: 'at' => 'All types',
485: 'hd' => 'Display Options'
486: );
487: my @disp_order = ('0','4','5','6','13','1','2','3','10','14','8','11','7','12','15','16');
488: my %disp_options = &Apache::lonlocal::texthash (
489: 0 => 'Title',
490: 4 => 'Author',
491: 5 => 'Keywords',
492: 6 => 'Language',
493: 13 => 'Notes',
494: 1 => 'Size',
495: 2 => 'Last access',
496: 3 => 'Last modified',
497: 10 => 'Source Available',
498: 14 => 'Abstract',
499: 8 => 'Statistics',
500: 11 => 'Linked/Related Resources',
501: 7 => 'Show resource',
502: 12 => 'Subject',
503: 15 => 'Grade Level',
504: 16 => 'Standards',
505: );
506: my $cell = 0;
507: my $numinrow = 4;
508: $r->print('
509: <form method="post" name="fileattr" action="'.$uri.'" enctype="application/x-www-form-urlencoded">
510: <fieldset>
511: <legend>'.$lt{'hd'}.'</legend>
512: <table style=" border-collapse: collapse; border-style: none;">'."\n");
513: foreach my $item (@disp_order) {
514: my $style = 'padding-left: 12px; padding-right: 8px;';
515: if ($cell%$numinrow == 0) {
516: $r->print('<tr>');
517: }
518: $cell ++;
519: if ($cell > 3 * $numinrow) {
520: $style .= ' padding-bottom: 6px;';
521: }
522: if (defined($disp_options{$item})) {
523: $r->print('<td style="'.$style.'"><span class="LC_nobreak">'.
524: '<label><input type="checkbox" name="attr'.$item.'" value="1" '.
525: $attrchk[$item].' onclick="this.form.submit();" /> '.$disp_options{$item}.
526: '</label></span></td>'."\n");
527: }
528: if ($cell > 1 && $cell%$numinrow == 0) {
529: $r->print('</tr>');
530: }
531: }
532: $r->print(<<END);
533: <tr>
534: <td style="font-style: italic; border-top: 1px solid black; padding-top: 6px">
535: <label><input type="checkbox" name="attr9" value="1" $attrchk[9] onclick="this.form.submit();" /> $lt{'av'}</label>
536: </td>
537: <td colspan="3" style="padding-left:8px; padding-top: 4px; font-style: italic; border-top: 1px solid black; padding-top: 8px">$type_selector</td>
538: </tr>
539: </table>
540: <input type="hidden" name="attrs" value="1" />
541: </fieldset>
542: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
543: <input type="hidden" name="acts" value="" />
544: $closebutton $groupimportbutton
545: END
546: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
547:
548: # -------------- Filter out sequence containment in crumbs and "recent folders"
549: my $storeuri=$uri;
550: $storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
551: $storeuri=~s/\/+/\//g;
552: # ---------------------------------------------------------------- Bread crumbs
553: $r->print(
554: '<p>'
555: .&Apache::lonhtmlcommon::crumbs(
556: $storeuri,
557: '',
558: '',
559: (($env{'form.catalogmode'} eq 'import')?
560: 'document.forms.fileattr':''))
561: .'<br />'
562: .&Apache::lonhtmlcommon::select_recent(
563: 'residx',
564: 'resrecent',
565: '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();')
566: .'</p>'
567: );
568: # -------------------------------------------------------- Resource Home Button
569: my $reshome=$env{'course.'.$env{'request.course.id'}.'.reshome'};
570: if ($reshome) {
571: $r->print("<span class=\"LC_fontsize_large\"><a href='");
572: if ($env{'form.catalogmode'} eq 'import') {
573: $r->print('javascript:document.forms.fileattr.action="'.&Apache::loncommon::inhibit_menu_check($reshome).'";document.forms.fileattr.submit();');
574: } else {
575: $r->print($reshome);
576: }
577: $r->print("'>".&mt('Home').'</a></span>');
578: }
579: $r->print('</form>');
580: # ------------------------------------------------------ Remember where we were
581: &Apache::loncommon::storeresurl($storeuri);
582: &Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
583: # -------------------------------------------------- Check All and Uncheck all
584: if ($env{'form.catalogmode'} eq 'import') {
585: $r->print('<p><input type="button" value="'.&mt("Check All").'" id="checkallbutton" onclick="javascript:checkAll()" />');
586: $r->print('<input type="button" value="'.&mt("Uncheck All").'" id="uncheckallbutton" onclick="javascript:uncheckAll()" /></p>');
587: }
588: # ----------------- output starting row to the indexed file/directory hierarchy
589: #$r->print(&initdebug());
590: #$r->print(&writedebug("Omit:@Omit")) if (@Omit);
591: #$r->print(&writedebug("Only:@Only")) if (@Only);
592: $r->print(&Apache::loncommon::start_data_table("LC_tableBrowseRes")
593: .&Apache::loncommon::start_data_table_header_row());
594: $r->print("<th $colspan>".&mt('Name')."</th>\n");
595: $r->print("<th></th>\n");
596: $r->print("<th>".&mt('Title')."</th>\n")
597: if ($hash{'display_attrs_0'} == 1);
598: $r->print('<th class="LC_right">'.&mt("Size")." (".&mt("bytes").") ".
599: "</th>\n") if ($hash{'display_attrs_1'} == 1);
600: $r->print("<th>".&mt("Last accessed")."</th>\n")
601: if ($hash{'display_attrs_2'} == 1);
602: $r->print("<th>".&mt("Last modified")."</th>\n")
603: if ($hash{'display_attrs_3'} == 1);
604: $r->print("<th>".&mt("Author(s)")."</th>\n")
605: if ($hash{'display_attrs_4'} == 1);
606: $r->print("<th>".&mt("Keywords")."</th>\n")
607: if ($hash{'display_attrs_5'} == 1);
608: $r->print("<th>".&mt("Language")."</th>\n")
609: if ($hash{'display_attrs_6'} == 1);
610: $r->print("<th>".&mt("Usage Statistics")." <br />(".
611: &mt("Courses/Network Hits").") ".&mt('updated periodically')."</th>\n")
612: if ($hash{'display_attrs_8'} == 1);
613: $r->print("<th>".&mt("Source Available")."</th>\n")
614: if ($hash{'display_attrs_10'} == 1);
615: $r->print("<th>".&mt("Linked/Related Resources")."</th>\n")
616: if ($hash{'display_attrs_11'} == 1);
617: $r->print("<th>".&mt("Resource")."</th>\n")
618: if ($hash{'display_attrs_7'} == 1);
619: $r->print("<th>".&mt("Subject")."</th>\n")
620: if ($hash{'display_attrs_12'} == 1);
621: $r->print("<th>".&mt("Notes")."</th>\n")
622: if ($hash{'display_attrs_13'} == 1);
623: $r->print("<th>".&mt("Abstract")."</th>\n")
624: if ($hash{'display_attrs_14'} == 1);
625: $r->print("<th>".&mt("Grade Level")."</th>\n")
626: if ($hash{'display_attrs_15'} == 1);
627: $r->print("<th>".&mt("Standards")."</th>\n")
628: if ($hash{'display_attrs_16'} == 1);
629:
630: $r->print(&Apache::loncommon::end_data_table_header_row());
631:
632:
633:
634: # ----------------- read in what directories have previously been set to "open"
635: foreach (keys %hash) {
636: if ($_ =~ /^diropen_status_/) {
637: my $key = $_;
638: $key =~ s/^diropen_status_//;
639: $dirs{$key} = $hash{$_};
640: }
641: }
642:
643: if ($env{'form.openuri'}) { # take care of review and refresh options
644: my $uri=$env{'form.openuri'};
645: if (exists($hash{'diropen_status_'.$uri})) {
646: my $cursta = $hash{'diropen_status_'.$uri};
647: $dirs{$uri} = 'open';
648: $hash{'diropen_status_'.$uri} = 'open';
649: if ($cursta eq 'open') {
650: $dirs{$uri} = 'closed';
651: $hash{'diropen_status_'.$uri} = 'closed';
652: }
653: } else {
654: $hash{'diropen_status_'.$uri} = 'open';
655: $dirs{$uri} = 'open';
656: }
657: }
658:
659: my $toplevel;
660: my $indent = 0;
661: $uri = $uri.'/' if $uri !~ /.*\/$/;
662:
663: if ($env{'form.dirPointer'} ne 'on') {
664: $hash{'top.level'} = $uri;
665: $toplevel = $uri;
666: } else {
667: $toplevel = $hash{'top.level'};
668: }
669:
670: # -------------------------------- if not at top level, provide an uplink arrow
671: if ($toplevel ne '/res/'){
672: my (@uri_com) = split(/\//,$uri);
673: pop @uri_com;
674: my $upone = join('/',@uri_com);
675: my @list = qw (0);
676: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
677: $indent = 1;
678: }
679:
680: # -------- recursively go through all the directories and output as appropriate
681: &scanDir ($r,$toplevel,$indent,\%hash);
682:
683: # -------------------------------------------------------------- end the tables
684: $r->print(&Apache::loncommon::end_data_table());
685:
686: # ---------------------------- embed hidden information useful for group import
687: $r->print("<form name='fnum' action=''>");
688: $r->print("<input type='hidden' name='fnum' value='$fnum' /></form>");
689:
690: # --------------------------------------------------- end the output and return
691: $r->print(&Apache::loncommon::end_page()."\n");
692: }
693: if(! $c->aborted()) {
694: # write back into the temporary file
695: my %dbfile;
696: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
697: while (my($key,$value) = each(%hash)) {
698: $dbfile{$key}=$value;
699: }
700: untie(%dbfile);
701: }
702: }
703:
704: return OK;
705: }
706:
707: # ----------------------------------------------- recursive scan of a directory
708: sub scanDir {
709: my ($r,$startdir,$indent,$hashref)=@_;
710: my $c = $r->connection();
711: my ($compuri,$curdir);
712: my $dirptr=16384;
713: my $obs;
714: $indent++;
715: my %dupdirs = %dirs;
716: my @list=&get_list($r,$startdir);
717: foreach my $line (@list) {
718: return if ($c->aborted());
719: #This is a kludge, sorry aboot this
720: my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
721: next if($strip =~ /.*\.meta$/ | $obs eq '1');
722: my (@fileparts) = split(/\./,$strip);
723: if ($hash{'display_attrs_9'} != 1) {
724: # if not all versions to be shown
725: if (scalar(@fileparts) >= 3) {
726: my $fext = pop @fileparts;
727: my $ov = pop @fileparts;
728: my $fname = join ('.',@fileparts,$fext);
729: next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
730: }
731: }
732:
733: if ($dom eq 'domain') {
734: # dom list has full path /res/<domain name>/ already
735: $curdir='';
736: $compuri = (split(/\&/,$line))[0];
737: } else {
738: # user, dir & file have name only, i.e., w/o path
739: $compuri = join('',$startdir,$strip,'/');
740: $curdir = $startdir;
741: }
742: my $diropen = 'closed';
743: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
744: while (my ($key,$val)= each %dupdirs) {
745: if ($key eq $compuri and $val eq "open") {
746: $diropen = "opened";
747: delete($dupdirs{$key});
748: delete($dirs{$key});
749: }
750: }
751: }
752: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
753: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
754: }
755: $indent--;
756: }
757:
758: # --------------- get complete matched list based on the uri (returns an array)
759: sub get_list {
760: my ($r,$uri)=@_;
761: my @list=();
762: my $listerror;
763:
764: (my $luri = $uri) =~ s/\//_/g;
765: if ($env{'form.updatedisplay'}) {
766: foreach (keys %hash) {
767: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
768: delete $hash{$_} if ($_ =~ /^dirlist_timestamp_files_/);
769: }
770: }
771:
772: if (defined($hash{'dirlist_files_'.$luri}) &&
773: $hash{'dirlist_timestamp_files_'.$luri}+600 > (time)) {
774: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
775: } elsif ($uri=~/\.(page|sequence)\/$/) {
776: # is a page or a sequence
777: $uri=~s/\/$//;
778: $uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
779: $uri=~s/\/+/\//g;
780: foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
781: my @ratpart=split(/\:/,$_);
782: push(@list,&LONCAPA::map::qtescape($ratpart[1]));
783: }
784: $hash{'dirlist_files_'.$luri} = join("\n",@list);
785: } else {
786: # is really a directory
787: (my $listref,$listerror) = &Apache::lonnet::dirlist($uri);
788: if (ref($listref) eq 'ARRAY') {
789: @list = @{$listref};
790: }
791: $hash{'dirlist_files_'.$luri} = join("\n",@list);
792: $hash{'dirlist_timestamp_files_'.$luri} = time;
793: }
794: #Checking for error messages associated with empty directories or inaccessible servers (See Bug 4984)
795: if (($listerror eq 'no_such_dir') || ($listerror eq 'no_such_host') || ($listerror eq 'no_host')) {
796: $r->print("<p class='LC_info'>" . &mt("Directory does not exist."). "</p>");
797: } elsif ($listerror eq 'con_lost') {
798: $r->print("<p class='LC_info'>" . &mt("Directory temporarily not accessible."). "</p>");
799: }
800:
801: return @list=&match_ext($r,@list);
802: }
803:
804: sub dynmetaread {
805: my $uri=shift;
806: if (($hash{'display_attrs_8'}==1) || ($hash{'display_attrs_11'}==1)) {
807: # We don't want the filename
808: $uri=~s/\/[^\/]+$//;
809: # Did we already see this?
810: my $builddir=$uri;
811: while ($builddir) {
812: if ($dynread{$builddir}) {
813: return 0;
814: }
815: $builddir=~s/\/[^\/]+$//;
816: }
817: # Actually get the data
818: %dynhash=
819: (%dynhash,&Apache::lonmeta::get_dynamic_metadata_from_sql($uri.'/'));
820: # Remember that we got it
821: $dynread{$uri}=1;
822: }
823: }
824:
825: sub initdebug {
826: my $start_page=
827: &Apache::loncommon::start_page('Debug',undef,
828: {'only_body' => 1,});
829: $start_page =~ s/\n/ /g;
830: return <<ENDJS;
831: <script type="text/javascript">
832: var debugging = true;
833: if (debugging) {
834: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
835: }
836:
837: function output(text) {
838: if (debugging) {
839: debuggingWindow.document.writeln(text);
840: }
841: }
842: output('$start_page<pre>');
843: </script>
844: ENDJS
845: }
846:
847: sub writedebug {
848: my ($text) = @_;
849: return "<script type=\"text/javascript\">output('$text');</script>";
850: }
851:
852: # -------------------- filters out files based on extensions (returns an array)
853: sub match_ext {
854: my ($r,@packlist)=@_;
855: my @trimlist;
856: my $nextline;
857: my @fileext;
858: my $dirptr=16384;
859:
860: foreach my $line (@packlist) {
861: chomp $line;
862: $line =~ s/^\/home\/httpd\/html//;
863: my @unpackline = split (/\&/,$line);
864: next if ($unpackline[0] eq '.');
865: next if ($unpackline[0] eq '..');
866: my @filecom = split (/\./,$unpackline[0]);
867: my $fext = pop(@filecom);
868: my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
869: if ($fnptr == 0 and $unpackline[3] ne "") {
870: my $embstyle = &Apache::loncommon::fileembstyle($fext);
871: push @trimlist,$line if (defined($embstyle) &&
872: ($embstyle ne 'hdn' or $fext eq 'meta'));
873: } else {
874: push @trimlist,$line;
875: }
876: }
877: @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
878: return @trimlist;
879: }
880:
881: # ------------------------------- displays one line in appropriate table format
882: sub display_line {
883: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
884: my (@pathfn, $fndir);
885: # there could be relative paths (files actually belonging into this directory)
886: # or absolute paths (for example, from sequences)
887: my $absolute;
888: my $pathprefix;
889: if ($line=~m|^/res/| && $startdir ne '') {
890: $absolute=1;
891: $pathprefix='';
892: } else {
893: $absolute=0;
894: $pathprefix=$startdir;
895: }
896: my $dirptr=16384;
897: #SB my $fileclr="#ffffe6";
898: my $iconpath= $r->dir_config('lonIconsURL') . '/';
899:
900: my @filecom = split (/\&/,$line);
901: my @pathcom = split (/\//,$filecom[0]);
902: my $listname = $pathcom[scalar(@pathcom)-1];
903: my $fnptr = $filecom[3]&$dirptr;
904: my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
905: $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
906: my $nowOpen = ($diropen eq 'opened' ? 1 : 0);
907:
908: my $tabtag='</td>';
909: my $i=0;
910: while ($i<=16) {
911: $tabtag=join('',$tabtag,"<td> </td>")
912: if ($i != 9 &&
913: $hash{'display_attrs_'.$i} == 1);
914: $i++;
915: }
916: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
917:
918: # display uplink arrow
919: if ($filecom[1] eq 'viewOneUp') {
920: my $updir=$startdir;
921: # -------------- Filter out sequence containment in crumbs and "recent folders"
922: $updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
923: $updir=~s/\/+/\//g;
924:
925: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
926: $r->print(&Apache::loncommon::start_data_table_row()); # valign="$valign" ?!?
927: $r->print($extrafield);
928: $r->print("<td>\n");
929: $r->print ('<form method="post" name="dirpathUP" action="'.$updir.
930: '/" '.
931: 'onsubmit="return rep_dirpath(\'UP\','.
932: 'document.forms.fileattr.acts.value)" '.
933: 'enctype="application/x-www-form-urlencoded"'.
934: '>'."\n");
935: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
936: $r->print ('<input type="hidden" name="openuri" value="'.
937: $startdir.'" />'."\n");
938: $r->print ('<input type="hidden" name="acts" value="" />'."\n");
939: $r->print ('<a href="#" onclick="document.dirpathUP.submit()"><img src="'.$iconpath.'arrow.up.gif"');
940: $r->print (' alt="'.$msg.'" class="LC_fileicon" />'.
941: "\n");
942: $r->print(&mt("Up")."</a></form></td><td>$tabtag");
943: $r->print(&Apache::loncommon::end_data_table_row());
944: return OK;
945: }
946: # Do we have permission to look at this?
947: if($filecom[15] ne '1') { return OK if ((!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])) && (!&Apache::lonnet::allowed('bro',$pathprefix.$filecom[0]))); }
948:
949: # make absolute links appear on different background
950: #SB if ($absolute) { $fileclr='#ccdd99'; }
951:
952: # display domain
953: if ($filecom[1] eq 'domain') {
954: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n")
955: if ($env{'form.dirPointer'} eq "on");
956: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
957: $r->print(&Apache::loncommon::start_data_table_row()); # valign="$valign" ?!?"
958: $r->print($extrafield);
959: $r->print("<td>");
960: &begin_form ($r,$filecom[0]);
961: my $anchor = $filecom[0];
962: $anchor =~ s/\W//g;
963: $r->print ('<a name="'.$anchor.'"></a>');
964: $r->print ('<input type="hidden" name="acts" value="" />');
965: $r->print ('<a href="#" onclick="document.dirpath'.($dnum-1).'.submit()"><img src="'.$iconpath.'arrow.'.($nowOpen ? "open" : "closed" ).'.gif"');
966: $r->print (' alt="'.$msg.'" class="LC_fileicon" /></a>'.
967: "\n");
968: my $quotable_filecom = &Apache::loncommon::escape_single($filecom[0]);
969: $r->print ('<a href="javascript:gothere(\''.$quotable_filecom.
970: '\')"><img alt="" src="'.$iconpath.'server.gif"');
971: $r->print (' class="LC_fileicon" />'."\n");
972: $r->print (&mt("Domain")." - $listname </a>");
973: if (&Apache::lonnet::domain($listname,'description')) {
974: $r->print("<br />(".&Apache::lonnet::domain($listname,'description').
975: ")");
976: }
977: $r->print("</form></td><td>$tabtag");
978: $r->print(&Apache::loncommon::end_data_table_row());
979: return OK;
980:
981: # display user directory
982: }
983: if ($filecom[1] eq 'user') {
984: # $r->print("<tr valign=$valign bgcolor=\"$fileclr\">$extrafield");
985: my $curdir = $startdir.$filecom[0].'/';
986: my $anchor = $curdir;
987: $anchor =~ s/\W//g;
988: #SB $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
989: $r->print(&Apache::loncommon::start_data_table_row()
990: .$extrafield.'<td class="LC_'.$valign.'">');
991: &begin_form ($r,$curdir);
992: $r->print ('<a name="'.$anchor.'"></a><img alt="" src="'.$iconpath.
993: 'whitespace_21.gif" class="LC_icon" />'."\n");
994: $r->print ('<input type="hidden" name="acts" value="" />');
995: $r->print ('<a href="#" onclick="document.dirpath'.($dnum-1).'.submit()">');
996: $r->print ('<img src="'.$iconpath.'arrow.'.($nowOpen ? "open" : "closed" ).
997: '.gif" class="LC_fileicon"');
998: $r->print (' alt="'.$msg.'"/></a>'.
999: "\n");
1000: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
1001: $r->print ('<a href="javascript:gothere(\''.$quotable_curdir
1002: .'\')"><img alt="'.$msg.'" src="'.
1003: $iconpath.'quill.gif" class="LC_fileicon" />');
1004: my $domain=(split(m|/|,$startdir))[2];
1005: my $plainname=&Apache::loncommon::plainname($listname,$domain);
1006: $r->print ($listname.'</a>');
1007:
1008: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
1009: # Wishlistlink
1010: $r->print('</form></td><td><a href="javascript:;" '.
1011: 'title="'.&mt('Set a link for this folder to wishlist').'" '.
1012: 'onclick="set_wishlistlink('."'$plainname','$startdir$listname'".')">'.
1013: '<img class="LC_icon" src="/res/adm/pages/wishlist.png" '.
1014: 'alt="'.&mt('set wishlistlink').'" style="width:22px;"/></a>'.$tabtag);
1015: $r->print(&Apache::loncommon::end_data_table_row());
1016: return OK;
1017: }
1018:
1019: # display file
1020: if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
1021: my $title;
1022: my $filelink = $pathprefix.$filecom[0];
1023: if ($hash{'display_attrs_0'} == 1) {
1024: $title = &Apache::lonnet::gettitle($filelink);
1025: }
1026: my @file_ext = split (/\./,$listname);
1027: my $curfext = $file_ext[-1];
1028: if (@Omit) {
1029: foreach (@Omit) { return OK if (lc($curfext) eq $_); }
1030: }
1031: if (@Only) {
1032: my $skip = 1;
1033: foreach (@Only) { $skip = 0 if (lc($curfext) eq $_); }
1034: return OK if ($skip > 0);
1035: }
1036: # Set the icon for the file
1037: my $iconname = &Apache::loncommon::icon($listname);
1038: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">);
1039: $r->print(&Apache::loncommon::start_data_table_row()); #SB valign="$valign" ?!?
1040: $r->print('<td class="LC_middle LC_nobreak">');
1041:
1042: if ($env{'form.catalogmode'} eq 'interactive') {
1043: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
1044: $r->print("<a href=\"javascript:select_data(\'",
1045: $quotable_filelink,"')\">");
1046: $r->print("<img alt=\"\" src='",$iconpath,"select.gif' class='LC_icon' /></a>".
1047: "\n");
1048: $r->print('</td><td class="LC_middle">');
1049: } elsif ($env{'form.catalogmode'} eq 'import') {
1050: $r->print("<form name='form$fnum' action=''>\n");
1051: $r->print("<input type='checkbox' name='filelink"."' ".
1052: "value='$filelink' onclick='".
1053: "javascript:queue(\"form$fnum\")' ");
1054: if ($hash{'store_'.$filelink}) {
1055: $r->print("checked");
1056: }
1057: $r->print(" />\n");
1058: $r->print('</form></td><td class="LC_middle">');
1059: $hash{"pre_${fnum}_link"}=$filelink;
1060: $hash{"pre_${fnum}_title"}=$title;
1061: if (!$hash{"pre_${fnum}_title"}) {
1062: $hash{"pre_${fnum}_title"} = 'Not_retrieved';
1063: }
1064: $fnum++;
1065: }
1066: # Form to open or close sequences
1067: if ($filelink=~/\.(page|sequence)$/) {
1068: my $curdir = $startdir.$filecom[0].'/';
1069: &begin_form($r,$curdir);
1070: $indent--;
1071: }
1072: # General indentation
1073: my $count = 0;
1074: while ($count < $indent) {
1075: $r->print('<img alt="" src="'.$iconpath.'whitespace_21.gif"
1076: class="LC_icon" />');
1077: $count++;
1078: }
1079: # Sequence open/close icon
1080: if ($filelink=~/\.(page|sequence)$/) {
1081: my $curdir = $startdir.$filecom[0].'/';
1082: my $anchor = $curdir;
1083: $anchor =~ s/\W//g;
1084: $r->print ('<input type="hidden" name="acts" value="" />');
1085: $r->print ('<a name="'.$anchor.'"></a>');
1086: $r->print ('<a href="#" onclick="document.dirpath'.($dnum-1).'.submit()">');
1087: $r->print ('<img src="'.$iconpath.'arrow.'.($nowOpen ? "open" : "closed" ).
1088: '.gif" class="LC_fileicon"');
1089: $r->print (' alt="'.$msg.'" /></a>'.
1090: "\n");
1091: }
1092: # Filetype icons
1093: $r->print("<img alt=\"\" src='$iconname' class='LC_fileicon' />\n");
1094: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
1095:
1096: $r->print (" <a href=\"javascript:openMyModal('".$quotable_filelink."?inhibitmenu=yes',500,500,'yes');\">$listname</a> ");
1097: $quotable_filelink = &Apache::loncommon::escape_single($filelink.'.meta');
1098: &Apache::loncommon::inhibit_menu_check(\$quotable_filelink);
1099: $r->print (" (<a href=\"javascript:openMyModal('".$quotable_filelink."?inhibitmenu=yes',500,500,'yes');\">".&mt('metadata')."</a>) ");
1100: # Close form to open/close sequence
1101: if ($filelink=~/\.(page|sequence)$/) {
1102: $r->print('</form>');
1103: }
1104: $r->print("</td>\n");
1105: # Wishlistlink
1106: $r->print('<td><a href="javascript:;" title="'.&mt('Set a link for this resource to wishlist').'" '.
1107: 'onclick="set_wishlistlink('."'".&Apache::lonnet::gettitle($filelink).
1108: "','$startdir$listname'".')">'.
1109: '<img class="LC_icon" src="/res/adm/pages/wishlist.png" '.
1110: 'alt="'.&mt('set wishlistlink').'" style="width:22px;"/></a></td>');
1111: if ($hash{'display_attrs_0'} == 1) {
1112: $r->print('<td> '.($title eq '' ? ' ' : $title).
1113: ' </td>'."\n");
1114: }
1115: $r->print('<td class="LC_right"> ',
1116: $filecom[8]," </td>\n")
1117: if $hash{'display_attrs_1'} == 1;
1118: $r->print('<td class="LC_nobreak"> '.
1119: (&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
1120: if $hash{'display_attrs_2'} == 1;
1121: $r->print('<td class="LC_nobreak"> '.
1122: (&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
1123: if $hash{'display_attrs_3'} == 1;
1124:
1125: if ($hash{'display_attrs_4'} == 1) {
1126: my $author = &Apache::lonnet::metadata($filelink,'author');
1127: $r->print('<td class="LC_nobreak"> '.($author eq '' ? ' ' : $author).
1128: " </td>\n");
1129: }
1130: if ($hash{'display_attrs_5'} == 1) {
1131: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1132: # $keywords = ' ' if (!$keywords);
1133: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1134: " </td>\n");
1135: }
1136:
1137: if ($hash{'display_attrs_6'} == 1) {
1138: my $lang = &Apache::lonnet::metadata($filelink,'language');
1139: $lang = &Apache::loncommon::languagedescription($lang);
1140: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1141: " </td>\n");
1142: }
1143: if ($hash{'display_attrs_8'} == 1) {
1144: # statistics
1145: &dynmetaread($filelink);
1146: $r->print("<td>");
1147:
1148: for (qw(count course stdno avetries difficulty disc clear technical
1149: correct helpful depth)) {
1150:
1151: dynmetaprint($r,$filelink,$_);
1152: }
1153:
1154: $r->print(" </td>\n");
1155:
1156: }
1157: if ($hash{'display_attrs_10'} == 1) {
1158: my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
1159: if($source eq 'open') {
1160: my $sourcelink = &Apache::lonsource::make_link($filelink,$listname);
1161: my $quotable_sourcelink = &Apache::loncommon::escape_single($sourcelink);
1162: &Apache::loncommon::inhibit_menu_check(\$quotable_sourcelink);
1163: $r->print('<td>'."<a href=\"javascript:openWindow('"
1164: .$quotable_sourcelink.
1165: "', 'previewsource', '700', '700', 'no', 'yes','yes');\"".
1166: " target=\"_self\">".&mt('Source Code')."</a> "."</td>\n");
1167: } else { #A cuddled else. :P
1168: $r->print("<td> </td>\n");
1169: }
1170: }
1171: if ($hash{'display_attrs_11'} == 1) {
1172: # links
1173: &dynmetaread($filelink);
1174: $r->print('<td>');
1175: &coursecontext($r,$filelink);
1176: for (qw(goto_list comefrom_list sequsage_list dependencies course_list)) {
1177: dynmetaprint($r,$filelink,$_);
1178: }
1179: $r->print('</td>');
1180: }
1181:
1182:
1183:
1184: if ($hash{'display_attrs_7'} == 1) {
1185: # Show resource
1186: my $output=&showpreview($filelink);
1187: $r->print('<td class="LC_fontsize_medium">'.($output eq '' ? ' ':$output).
1188: " </td>\n");
1189: }
1190:
1191: if ($hash{'display_attrs_12'} == 1) {
1192: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1193: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1194: " </td>\n");
1195: }
1196:
1197: if ($hash{'display_attrs_13'} == 1) {
1198: my $notes = &Apache::lonnet::metadata($filelink,'notes');
1199: $r->print('<td> '.($notes eq '' ? ' ' : $notes).
1200: " </td>\n");
1201: }
1202:
1203: if ($hash{'display_attrs_14'} == 1) {
1204: my $abstract = &Apache::lonnet::metadata($filelink,'abstract');
1205: $r->print('<td> '.($abstract eq '' ? ' ' : $abstract).
1206: " </td>\n");
1207: }
1208:
1209: if ($hash{'display_attrs_15'} == 1) {
1210: my $gradelevel = &Apache::lonnet::metadata($filelink,'gradelevel');
1211: $r->print('<td> '.($gradelevel eq '' ? ' ' : $gradelevel).
1212: " </td>\n");
1213: }
1214:
1215: if ($hash{'display_attrs_16'} == 1) {
1216: my $standards = &Apache::lonnet::metadata($filelink,'standards');
1217: $r->print('<td> '.($standards eq '' ? ' ' : $standards).
1218: " </td>\n");
1219: }
1220:
1221: $r->print(&Apache::loncommon::end_data_table_row());
1222: }
1223:
1224:
1225:
1226: # -- display directory
1227: if ($fnptr == $dirptr) {
1228: my $curdir = $startdir.$filecom[0].'/';
1229: my $anchor = $curdir;
1230: $anchor =~ s/\W//g;
1231: #SB $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
1232: $r->print(&Apache::loncommon::start_data_table_row()); # SB: bgcolor suggestion: darkgrey ("LC_info_row"?!?)
1233: # $r->print('<tr class="LC_info_row">');
1234: $r->print($extrafield.'<td class="LC_middle LC_nobreak">');
1235: &begin_form ($r,$curdir);
1236: my $indentm1 = $indent-1;
1237: my $count = 0;
1238: while ($count < $indentm1) {
1239: $r->print ('<img alt="" src="',$iconpath
1240: ,'whitespace_21.gif" class="LC_icon" />');
1241: $count++;
1242: }
1243: $r->print ('<input type="hidden" name="acts" value="" />');
1244: $r->print ('<a name="'.$anchor.'"></a>');
1245: $r->print ('<a href="#" onclick="document.dirpath'.($dnum-1).'.submit()"><img src="'.$iconpath.
1246: 'arrow.'.($nowOpen ? "open" : "closed" ).'.gif"');
1247: $r->print (' alt="'.$msg.'" class="LC_fileicon" /></a>'.
1248: "\n");
1249: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
1250:
1251: my $location = &Apache::loncommon::lonhttpdurl("/adm/lonIcons");
1252: my $icon = "navmap.folder.".($nowOpen ? "open":"closed").'.gif';
1253: $r->print ('<a href="javascript:gothere('
1254: ."'$quotable_curdir'".');">'
1255: .'<img class="LC_fileicon" alt="'.&mt('Open Folder').'" src="'
1256: .$location.'/'.$icon.'" />'
1257: ."\n");
1258: $r->print ("$listname</a></form>");
1259: # Wishlistlink
1260: $r->print('</td><td><a href="javascript:;" '.
1261: 'title="'.&mt('Set a link for this folder to wishlist').'" '.
1262: 'onclick="set_wishlistlink('."'$listname','$startdir$listname'".')">'.
1263: '<img class="LC_icon" src="/res/adm/pages/wishlist.png" '.
1264: 'alt="'.&mt('set wishlistlink').'" style="width:22px;"/></a></td>');
1265: # Attributes
1266: my $filelink = $startdir.$filecom[0].'/default';
1267:
1268: if ($hash{'display_attrs_0'} == 1) {
1269: my $title = &Apache::lonnet::gettitle($filelink);
1270: $r->print('<td> '.($title eq '' ? ' ' : $title).
1271: ' </td>'."\n");
1272: }
1273: $r->print('<td class="LC_right"> ',
1274: $filecom[8]," </td>\n")
1275: if $hash{'display_attrs_1'} == 1;
1276: $r->print('<td class="LC_break"> '.
1277: (&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
1278: if $hash{'display_attrs_2'} == 1;
1279: $r->print('<td class="LC_break"> '.
1280: (&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
1281: if $hash{'display_attrs_3'} == 1;
1282:
1283: if ($hash{'display_attrs_4'} == 1) {
1284: my $author = &Apache::lonnet::metadata($filelink,'author');
1285: $r->print('<td> '.($author eq '' ? ' ' : $author).
1286: " </td>\n");
1287: }
1288: if ($hash{'display_attrs_5'} == 1) {
1289: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1290: # $keywords = ' ' if (!$keywords);
1291: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1292: " </td>\n");
1293: }
1294: if ($hash{'display_attrs_6'} == 1) {
1295: my $lang = &Apache::lonnet::metadata($filelink,'language');
1296: $lang = &Apache::loncommon::languagedescription($lang);
1297: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1298: " </td>\n");
1299: }
1300:
1301: if ($hash{'display_attrs_8'} == 1) {
1302: $r->print('<td> </td>');
1303: }
1304: if ($hash{'display_attrs_10'} == 1) {
1305: $r->print('<td> </td>');
1306: }
1307: if ($hash{'display_attrs_7'} == 1) {
1308: $r->print('<td> </td>');
1309: }
1310: if ($hash{'display_attrs_11'} == 1) {
1311: $r->print('<td> </td>');
1312: }
1313: if ($hash{'display_attrs_12'} == 1) {
1314: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1315: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1316: " </td>\n");
1317: }
1318: if ($hash{'display_attrs_13'} == 1) {
1319: my $notes = &Apache::lonnet::metadata($filelink,'notes');
1320: $r->print('<td> '.($notes eq '' ? ' ' : $notes).
1321: " </td>\n");
1322: }
1323:
1324: if ($hash{'display_attrs_14'} == 1) {
1325: my $abstract = &Apache::lonnet::metadata($filelink,'abstract');
1326: $r->print('<td> '.($abstract eq '' ? ' ' : $abstract).
1327: " </td>\n");
1328: }
1329:
1330: if ($hash{'display_attrs_15'} == 1) {
1331: my $gradelevel = &Apache::lonnet::metadata($filelink,'gradelevel');
1332: $r->print('<td> '.($gradelevel eq '' ? ' ' : $gradelevel).
1333: " </td>\n");
1334: }
1335:
1336: if ($hash{'display_attrs_16'} == 1) {
1337: my $standards = &Apache::lonnet::metadata($filelink,'standards');
1338: $r->print('<td> '.($standards eq '' ? ' ' : $standards).
1339: " </td>\n");
1340: }
1341:
1342:
1343: $r->print(&Apache::loncommon::end_data_table_row());
1344: }
1345:
1346: }
1347:
1348: sub coursecontext {
1349: my ($r,$filelink)=@_;
1350: my $filesymb=&Apache::lonnet::symbread($filelink);
1351: if ($filesymb) {
1352: my ($map,$index,$resource)=&Apache::lonnet::decode_symb($filesymb);
1353: $r->print(&mt('Already in this course:<br />[_1] in folder/map [_2].<br />',
1354: &Apache::lonnet::gettitle($resource),
1355: &Apache::lonnet::gettitle($map)));
1356: }
1357: }
1358:
1359: sub showpreview {
1360: my ($filelink)=@_;
1361: if ($filelink=~m-^(/ext/|http://)-) {
1362: return &mt('External Resource, preview not enabled');
1363: }
1364: my ($curfext)=($filelink=~/\.(\w+)$/);
1365: my $output='';
1366: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
1367: if ($embstyle eq 'ssi') {
1368: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
1369: '.tmp';
1370: if ((!$env{'form.updatedisplay'}) &&
1371: (-e $cache)) {
1372: open(FH,$cache);
1373: $output=join("\n",<FH>);
1374: close(FH);
1375: } else {
1376: # In update display mode, remove old cache. This is done to retroactively
1377: # clean up course context renderings.
1378: if (-e $cache) {
1379: unlink($cache);
1380: }
1381: $output=&Apache::lonnet::ssi_body($filelink);
1382: # Is access denied? Don't render, don't store
1383: if ($output=~/LONCAPAACCESSCONTROLERRORSCREEN/s) {
1384: $output='';
1385: # Was this rendered in course content? Don't store
1386: } elsif (!&Apache::lonnet::symbread($filelink)) {
1387: open(FH,">$cache");
1388: print FH $output;
1389: close(FH);
1390: }
1391: }
1392: } elsif ($embstyle eq 'img') {
1393: $output='<img alt="'.&mt('Preview').'" src="'.$filelink.'" />';
1394: } elsif ($filelink=~m{^/res/($match_domain)/($match_username)/}) {
1395: $output='<img alt="'.&mt('Preview').'" src="http://'.
1396: &Apache::lonnet::hostname(&Apache::lonnet::homeserver($2,$1)).
1397: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1398: }
1399: return $output;
1400: }
1401:
1402: sub dynmetaprint {
1403: my ($r,$filelink,$item)=@_;
1404: if ($dynhash{$filelink}->{$item}) {
1405: $r->print("\n<br />".$fieldnames{$item}.': '.
1406: &Apache::lonmeta::prettyprint($item,
1407: $dynhash{$filelink}->{$item},
1408: (($env{'form.catalogmode'} ne 'import')?'preview':''),
1409: '',
1410: (($env{'form.catalogmode'} eq 'import')?'document.forms.fileattr':''),1));
1411: }
1412: }
1413:
1414: # ------------------- prints the beginning of a form for directory or file link
1415: sub begin_form {
1416: my ($r,$uri) = @_;
1417: my $anchor = $uri;
1418: $anchor =~ s/\W//g;
1419: $uri=&Apache::loncommon::escape_single($uri);
1420: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1421: '#'.$anchor.
1422: '" onsubmit="return rep_dirpath(\''.$dnum.'\''.
1423: ',document.forms.fileattr.acts.value)" '.
1424: 'enctype="application/x-www-form-urlencoded">'."\n");
1425: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'" />'.
1426: "\n");
1427: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n");
1428: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
1429: $dnum++;
1430: }
1431:
1432: # --------- settings whenever the user causes the indexer window to be launched
1433: sub start_fresh_session {
1434: my ($hash) = @_;
1435: delete $hash->{'form.catalogmode'};
1436: delete $hash->{'form.mode'};
1437: delete $hash->{'form.form'};
1438: delete $hash->{'form.element'};
1439: delete $hash->{'form.omit'};
1440: delete $hash->{'form.only'};
1441: foreach (keys %{$hash}) {
1442: delete $hash->{$_} if (/^(pre_|store)/);
1443: }
1444: }
1445:
1446: # ------------------------------------------------------------------- setvalues
1447: sub setvalues {
1448: # setvalues is used in registerurl to synchronize the database
1449: # hash and environment hashes
1450: my ($H1,$h1key,$H2,$h2key) =@_;
1451: #
1452: if (exists $H2->{$h2key}) {
1453: $H1->{$h1key} = $H2->{$h2key};
1454: } elsif (exists $H1->{$h1key}) {
1455: $H2->{$h2key} = $H1->{$h1key};
1456: }
1457: }
1458:
1459: 1;
1460:
1461: sub cleanup {
1462: if (tied(%hash)){
1463: &Apache::lonnet::logthis('Cleanup indexer: hash');
1464: }
1465: return OK;
1466: }
1467:
1468:
1469:
1470:
1471:
1472: =head1 NAME
1473:
1474: Apache::lonindexer - mod_perl module for cross server filesystem browsing
1475:
1476: =head1 SYNOPSIS
1477:
1478: Invoked by /etc/httpd/conf/srm.conf:
1479:
1480: <LocationMatch "^/res.*/$">
1481: SetHandler perl-script
1482: PerlHandler Apache::lonindexer
1483: </LocationMatch>
1484:
1485: =head1 INTRODUCTION
1486:
1487: This module enables a scheme of browsing across a cross server.
1488:
1489: This is part of the LearningOnline Network with CAPA project
1490: described at http://www.lon-capa.org.
1491:
1492: =head1 BEGIN SUBROUTINE
1493:
1494: This routine is only run once after compilation.
1495:
1496: =over 4
1497:
1498: =item *
1499:
1500: Initializes %language hash table.
1501:
1502: =back
1503:
1504: =head1 HANDLER SUBROUTINE
1505:
1506: This routine is called by Apache and mod_perl.
1507:
1508: =over 4
1509:
1510: =item *
1511:
1512: read in machine configuration variables
1513:
1514: =item *
1515:
1516: see if called from an interactive mode
1517:
1518: =item *
1519:
1520: refresh environment with user database values (in %hash)
1521:
1522: =item *
1523:
1524: define extra fields and buttons in case of special mode
1525:
1526: =item *
1527:
1528: set catalogmodefunctions to have extra needed javascript functionality
1529:
1530: =item *
1531:
1532: print header
1533:
1534: =item *
1535:
1536: evaluate actions from previous page (both cumulatively and chronologically)
1537:
1538: =item *
1539:
1540: output title
1541:
1542: =item *
1543:
1544: get state of file attributes to be showing
1545:
1546: =item *
1547:
1548: output state of file attributes to be showing
1549:
1550: =item *
1551:
1552: output starting row to the indexed file/directory hierarchy
1553:
1554: =item *
1555:
1556: read in what directories have previously been set to "open"
1557:
1558: =item *
1559:
1560: if not at top level, provide an uplink arrow
1561:
1562: =item *
1563:
1564: recursively go through all the directories and output as appropriate
1565:
1566: =item *
1567:
1568: information useful for group import
1569:
1570: =item *
1571:
1572: end the tables
1573:
1574: =item *
1575:
1576: end the output and return
1577:
1578: =back
1579:
1580: =head1 OTHER SUBROUTINES
1581:
1582: =over 4
1583:
1584: =item *
1585:
1586: scanDir - recursive scan of a directory
1587:
1588: =item *
1589:
1590: get_list - get complete matched list based on the uri (returns an array)
1591:
1592: =item *
1593:
1594: match_ext - filters out files based on extensions (returns an array)
1595:
1596: =item *
1597:
1598: display_line - displays one line in appropriate table format
1599:
1600: =item *
1601:
1602: begin_form - prints the beginning of a form for directory or file link
1603:
1604: =item *
1605:
1606: start_fresh_session - settings whenever the user causes the indexer window
1607: to be launched
1608:
1609: =back
1610:
1611: =cut
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