1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.215 2012/07/11 12:51:36 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: #
426: # FIXME: hard link to fhwfdev?
427: #
428: #
429:
430: &Apache::lonhtmlcommon::add_breadcrumb({
431: 'text' => 'Browse published resources',
432: 'href' => '/res/fhwfdev/?launch=1',
433: });
434: $r->print(&Apache::loncommon::start_page('Browse published resources',$js,
435: {'domain' => $headerdom,})
436: .&Apache::lonhtmlcommon::breadcrumbs()
437: );
438: }
439:
440: # ---------------------------------- get state of file types to be showing
441: if ($env{'form.only'}) {
442: $typeselect = $env{'form.only'};
443: } else {
444: $typeselect = '';
445: }
446:
447: # ---------------------------------- get state of file attributes to be showing
448: if ($env{'form.attrs'}) {
449: for (my $i=0; $i<=16; $i++) {
450: delete $hash{'display_attrs_'.$i};
451: if ($env{'form.attr'.$i} == 1) {
452: $attrchk[$i] = 'checked';
453: $hash{'display_attrs_'.$i} = 1;
454: }
455: }
456: } else {
457: for (my $i=0; $i<=16; $i++) {
458: $attrchk[$i] = 'checked="checked"' if $hash{'display_attrs_'.$i} == 1;
459: }
460: }
461:
462: my @file_categories = &Apache::loncommon::filecategories();
463: my %select_file_categories;
464: my @select_form_order = ('');
465: $select_file_categories{''} = &mt('All file types');
466: foreach my $cat (@file_categories) {
467: my $types = join(",",&Apache::loncommon::filecategorytypes($cat));
468: $select_file_categories{$types} = &mt($cat);
469: push(@select_form_order,$types);
470: }
471: $select_file_categories{'select_form_order'} = \@select_form_order;
472: my $onchange = 'this.form.submit();';
473: my $type_element=
474: &Apache::loncommon::select_form(
475: $typeselect,
476: 'only',
477: \%select_file_categories,$onchange);
478: my $type_selector = '<label>'.&mt('File Type Displayed: [_1]',
479: $type_element).'</label>';
480:
481: # ------------------------------- output state of file attributes to be showing
482: # All versions has to the last item
483: # since it does not take an extra col
484: my %lt=&Apache::lonlocal::texthash(
485: 'av' => 'All versions',
486: 'ud' => 'Update Display',
487: 'pr' => 'Problems',
488: 'gr' => 'Graphics',
489: 'at' => 'All types',
490: 'hd' => 'Display Options'
491: );
492: my @disp_order = ('0','4','5','6','13','1','2','3','10','14','8','11','7','12','15','16');
493: my %disp_options = &Apache::lonlocal::texthash (
494: 0 => 'Title',
495: 4 => 'Author',
496: 5 => 'Keywords',
497: 6 => 'Language',
498: 13 => 'Notes',
499: 1 => 'Size',
500: 2 => 'Last access',
501: 3 => 'Last modified',
502: 10 => 'Source Available',
503: 14 => 'Abstract',
504: 8 => 'Statistics',
505: 11 => 'Linked/Related Resources',
506: 7 => 'Show resource',
507: 12 => 'Subject',
508: 15 => 'Grade Level',
509: 16 => 'Standards',
510: );
511: my $cell = 0;
512: my $numinrow = 4;
513: $r->print('
514: <form method="post" name="fileattr" action="'.$uri.'" enctype="application/x-www-form-urlencoded">
515: <fieldset>
516: <legend>'.$lt{'hd'}.'</legend>
517: <table style=" border-collapse: collapse; border-style: none;">'."\n");
518: foreach my $item (@disp_order) {
519: my $style = 'padding-left: 12px; padding-right: 8px;';
520: if ($cell%$numinrow == 0) {
521: $r->print('<tr>');
522: }
523: $cell ++;
524: if ($cell > 3 * $numinrow) {
525: $style .= ' padding-bottom: 6px;';
526: }
527: if (defined($disp_options{$item})) {
528: $r->print('<td style="'.$style.'"><span class="LC_nobreak">'.
529: '<label><input type="checkbox" name="attr'.$item.'" value="1" '.
530: $attrchk[$item].' onclick="this.form.submit();" /> '.$disp_options{$item}.
531: '</label></span></td>'."\n");
532: }
533: if ($cell > 1 && $cell%$numinrow == 0) {
534: $r->print('</tr>');
535: }
536: }
537: $r->print(<<END);
538: <tr>
539: <td style="font-style: italic; border-top: 1px solid black; padding-top: 6px">
540: <label><input type="checkbox" name="attr9" value="1" $attrchk[9] onclick="this.form.submit();" /> $lt{'av'}</label>
541: </td>
542: <td colspan="3" style="padding-left:8px; padding-top: 4px; font-style: italic; border-top: 1px solid black; padding-top: 8px">$type_selector</td>
543: </tr>
544: </table>
545: <input type="hidden" name="attrs" value="1" />
546: </fieldset>
547: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
548: <input type="hidden" name="acts" value="" />
549: $closebutton $groupimportbutton
550: END
551: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
552:
553: # -------------- Filter out sequence containment in crumbs and "recent folders"
554: my $storeuri=$uri;
555: $storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
556: $storeuri=~s/\/+/\//g;
557: # ---------------------------------------------------------------- Bread crumbs
558: $r->print(
559: '<p>'
560: .&Apache::lonhtmlcommon::crumbs(
561: $storeuri,
562: '',
563: '',
564: (($env{'form.catalogmode'} eq 'import')?
565: 'document.forms.fileattr':''))
566: .'<br />'
567: .&Apache::lonhtmlcommon::select_recent(
568: 'residx',
569: 'resrecent',
570: '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();')
571: .'</p>'
572: );
573: # -------------------------------------------------------- Resource Home Button
574: my $reshome=$env{'course.'.$env{'request.course.id'}.'.reshome'};
575: if ($reshome) {
576: $r->print("<span class=\"LC_fontsize_large\"><a href='");
577: if ($env{'form.catalogmode'} eq 'import') {
578: $r->print('javascript:document.forms.fileattr.action="'.&Apache::loncommon::inhibit_menu_check($reshome).'";document.forms.fileattr.submit();');
579: } else {
580: $r->print($reshome);
581: }
582: $r->print("'>".&mt('Home').'</a></span>');
583: }
584: $r->print('</form>');
585: # ------------------------------------------------------ Remember where we were
586: &Apache::loncommon::storeresurl($storeuri);
587: &Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
588: # -------------------------------------------------- Check All and Uncheck all
589: if ($env{'form.catalogmode'} eq 'import') {
590: $r->print('<p><input type="button" value="'.&mt("Check All").'" id="checkallbutton" onclick="javascript:checkAll()" />');
591: $r->print('<input type="button" value="'.&mt("Uncheck All").'" id="uncheckallbutton" onclick="javascript:uncheckAll()" /></p>');
592: }
593: # ----------------- output starting row to the indexed file/directory hierarchy
594: #$r->print(&initdebug());
595: #$r->print(&writedebug("Omit:@Omit")) if (@Omit);
596: #$r->print(&writedebug("Only:@Only")) if (@Only);
597: $r->print(&Apache::loncommon::start_data_table("LC_tableBrowseRes")
598: .&Apache::loncommon::start_data_table_header_row());
599: $r->print("<th $colspan>".&mt('Name')."</th>\n");
600: $r->print("<th></th>\n");
601: $r->print("<th>".&mt('Title')."</th>\n")
602: if ($hash{'display_attrs_0'} == 1);
603: $r->print('<th class="LC_right">'.&mt("Size")." (".&mt("bytes").") ".
604: "</th>\n") if ($hash{'display_attrs_1'} == 1);
605: $r->print("<th>".&mt("Last accessed")."</th>\n")
606: if ($hash{'display_attrs_2'} == 1);
607: $r->print("<th>".&mt("Last modified")."</th>\n")
608: if ($hash{'display_attrs_3'} == 1);
609: $r->print("<th>".&mt("Author(s)")."</th>\n")
610: if ($hash{'display_attrs_4'} == 1);
611: $r->print("<th>".&mt("Keywords")."</th>\n")
612: if ($hash{'display_attrs_5'} == 1);
613: $r->print("<th>".&mt("Language")."</th>\n")
614: if ($hash{'display_attrs_6'} == 1);
615: $r->print("<th>".&mt("Usage Statistics")." <br />(".
616: &mt("Courses/Network Hits").") ".&mt('updated periodically')."</th>\n")
617: if ($hash{'display_attrs_8'} == 1);
618: $r->print("<th>".&mt("Source Available")."</th>\n")
619: if ($hash{'display_attrs_10'} == 1);
620: $r->print("<th>".&mt("Linked/Related Resources")."</th>\n")
621: if ($hash{'display_attrs_11'} == 1);
622: $r->print("<th>".&mt("Resource")."</th>\n")
623: if ($hash{'display_attrs_7'} == 1);
624: $r->print("<th>".&mt("Subject")."</th>\n")
625: if ($hash{'display_attrs_12'} == 1);
626: $r->print("<th>".&mt("Notes")."</th>\n")
627: if ($hash{'display_attrs_13'} == 1);
628: $r->print("<th>".&mt("Abstract")."</th>\n")
629: if ($hash{'display_attrs_14'} == 1);
630: $r->print("<th>".&mt("Grade Level")."</th>\n")
631: if ($hash{'display_attrs_15'} == 1);
632: $r->print("<th>".&mt("Standards")."</th>\n")
633: if ($hash{'display_attrs_16'} == 1);
634:
635: $r->print(&Apache::loncommon::end_data_table_header_row());
636:
637:
638:
639: # ----------------- read in what directories have previously been set to "open"
640: foreach (keys %hash) {
641: if ($_ =~ /^diropen_status_/) {
642: my $key = $_;
643: $key =~ s/^diropen_status_//;
644: $dirs{$key} = $hash{$_};
645: }
646: }
647:
648: if ($env{'form.openuri'}) { # take care of review and refresh options
649: my $uri=$env{'form.openuri'};
650: if (exists($hash{'diropen_status_'.$uri})) {
651: my $cursta = $hash{'diropen_status_'.$uri};
652: $dirs{$uri} = 'open';
653: $hash{'diropen_status_'.$uri} = 'open';
654: if ($cursta eq 'open') {
655: $dirs{$uri} = 'closed';
656: $hash{'diropen_status_'.$uri} = 'closed';
657: }
658: } else {
659: $hash{'diropen_status_'.$uri} = 'open';
660: $dirs{$uri} = 'open';
661: }
662: }
663:
664: my $toplevel;
665: my $indent = 0;
666: $uri = $uri.'/' if $uri !~ /.*\/$/;
667:
668: if ($env{'form.dirPointer'} ne 'on') {
669: $hash{'top.level'} = $uri;
670: $toplevel = $uri;
671: } else {
672: $toplevel = $hash{'top.level'};
673: }
674:
675: # -------------------------------- if not at top level, provide an uplink arrow
676: if ($toplevel ne '/res/'){
677: my (@uri_com) = split(/\//,$uri);
678: pop @uri_com;
679: my $upone = join('/',@uri_com);
680: my @list = qw (0);
681: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
682: $indent = 1;
683: }
684:
685: # -------- recursively go through all the directories and output as appropriate
686: &scanDir ($r,$toplevel,$indent,\%hash);
687:
688: # -------------------------------------------------------------- end the tables
689: $r->print(&Apache::loncommon::end_data_table());
690:
691: # ---------------------------- embed hidden information useful for group import
692: $r->print("<form name='fnum' action=''>");
693: $r->print("<input type='hidden' name='fnum' value='$fnum' /></form>");
694:
695: # --------------------------------------------------- end the output and return
696: $r->print(&Apache::loncommon::end_page()."\n");
697: }
698: if(! $c->aborted()) {
699: # write back into the temporary file
700: my %dbfile;
701: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
702: while (my($key,$value) = each(%hash)) {
703: $dbfile{$key}=$value;
704: }
705: untie(%dbfile);
706: }
707: }
708:
709: return OK;
710: }
711:
712: # ----------------------------------------------- recursive scan of a directory
713: sub scanDir {
714: my ($r,$startdir,$indent,$hashref)=@_;
715: my $c = $r->connection();
716: my ($compuri,$curdir);
717: my $dirptr=16384;
718: my $obs;
719: $indent++;
720: my %dupdirs = %dirs;
721: my @list=&get_list($r,$startdir);
722: foreach my $line (@list) {
723: return if ($c->aborted());
724: #This is a kludge, sorry aboot this
725: my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
726: next if($strip =~ /.*\.meta$/ | $obs eq '1');
727: my (@fileparts) = split(/\./,$strip);
728: if ($hash{'display_attrs_9'} != 1) {
729: # if not all versions to be shown
730: if (scalar(@fileparts) >= 3) {
731: my $fext = pop @fileparts;
732: my $ov = pop @fileparts;
733: my $fname = join ('.',@fileparts,$fext);
734: next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
735: }
736: }
737:
738: if ($dom eq 'domain') {
739: # dom list has full path /res/<domain name>/ already
740: $curdir='';
741: $compuri = (split(/\&/,$line))[0];
742: } else {
743: # user, dir & file have name only, i.e., w/o path
744: $compuri = join('',$startdir,$strip,'/');
745: $curdir = $startdir;
746: }
747: my $diropen = 'closed';
748: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
749: while (my ($key,$val)= each %dupdirs) {
750: if ($key eq $compuri and $val eq "open") {
751: $diropen = "opened";
752: delete($dupdirs{$key});
753: delete($dirs{$key});
754: }
755: }
756: }
757: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
758: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
759: }
760: $indent--;
761: }
762:
763: # --------------- get complete matched list based on the uri (returns an array)
764: sub get_list {
765: my ($r,$uri)=@_;
766: my @list=();
767: my $listerror;
768:
769: (my $luri = $uri) =~ s/\//_/g;
770: if ($env{'form.updatedisplay'}) {
771: foreach (keys %hash) {
772: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
773: delete $hash{$_} if ($_ =~ /^dirlist_timestamp_files_/);
774: }
775: }
776:
777: if (defined($hash{'dirlist_files_'.$luri}) &&
778: $hash{'dirlist_timestamp_files_'.$luri}+600 > (time)) {
779: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
780: } elsif ($uri=~/\.(page|sequence)\/$/) {
781: # is a page or a sequence
782: $uri=~s/\/$//;
783: $uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
784: $uri=~s/\/+/\//g;
785: foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
786: my @ratpart=split(/\:/,$_);
787: push(@list,&LONCAPA::map::qtescape($ratpart[1]));
788: }
789: $hash{'dirlist_files_'.$luri} = join("\n",@list);
790: } else {
791: # is really a directory
792: (my $listref,$listerror) = &Apache::lonnet::dirlist($uri);
793: if (ref($listref) eq 'ARRAY') {
794: @list = @{$listref};
795: }
796: $hash{'dirlist_files_'.$luri} = join("\n",@list);
797: $hash{'dirlist_timestamp_files_'.$luri} = time;
798: }
799: #Checking for error messages associated with empty directories or inaccessible servers (See Bug 4984)
800: if (($listerror eq 'no_such_dir') || ($listerror eq 'no_such_host') || ($listerror eq 'no_host')) {
801: $r->print("<p class='LC_info'>" . &mt("Directory does not exist."). "</p>");
802: } elsif ($listerror eq 'con_lost') {
803: $r->print("<p class='LC_info'>" . &mt("Directory temporarily not accessible."). "</p>");
804: }
805:
806: return @list=&match_ext($r,@list);
807: }
808:
809: sub dynmetaread {
810: my $uri=shift;
811: if (($hash{'display_attrs_8'}==1) || ($hash{'display_attrs_11'}==1)) {
812: # We don't want the filename
813: $uri=~s/\/[^\/]+$//;
814: # Did we already see this?
815: my $builddir=$uri;
816: while ($builddir) {
817: if ($dynread{$builddir}) {
818: return 0;
819: }
820: $builddir=~s/\/[^\/]+$//;
821: }
822: # Actually get the data
823: %dynhash=
824: (%dynhash,&Apache::lonmeta::get_dynamic_metadata_from_sql($uri.'/'));
825: # Remember that we got it
826: $dynread{$uri}=1;
827: }
828: }
829:
830: sub initdebug {
831: my $start_page=
832: &Apache::loncommon::start_page('Debug',undef,
833: {'only_body' => 1,});
834: $start_page =~ s/\n/ /g;
835: return <<ENDJS;
836: <script type="text/javascript">
837: var debugging = true;
838: if (debugging) {
839: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
840: }
841:
842: function output(text) {
843: if (debugging) {
844: debuggingWindow.document.writeln(text);
845: }
846: }
847: output('$start_page<pre>');
848: </script>
849: ENDJS
850: }
851:
852: sub writedebug {
853: my ($text) = @_;
854: return "<script type=\"text/javascript\">output('$text');</script>";
855: }
856:
857: # -------------------- filters out files based on extensions (returns an array)
858: sub match_ext {
859: my ($r,@packlist)=@_;
860: my @trimlist;
861: my $nextline;
862: my @fileext;
863: my $dirptr=16384;
864:
865: foreach my $line (@packlist) {
866: chomp $line;
867: $line =~ s/^\/home\/httpd\/html//;
868: my @unpackline = split (/\&/,$line);
869: next if ($unpackline[0] eq '.');
870: next if ($unpackline[0] eq '..');
871: my @filecom = split (/\./,$unpackline[0]);
872: my $fext = pop(@filecom);
873: my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
874: if ($fnptr == 0 and $unpackline[3] ne "") {
875: my $embstyle = &Apache::loncommon::fileembstyle($fext);
876: push @trimlist,$line if (defined($embstyle) &&
877: ($embstyle ne 'hdn' or $fext eq 'meta'));
878: } else {
879: push @trimlist,$line;
880: }
881: }
882: @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
883: return @trimlist;
884: }
885:
886: # ------------------------------- displays one line in appropriate table format
887: sub display_line {
888: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
889: my (@pathfn, $fndir);
890: # there could be relative paths (files actually belonging into this directory)
891: # or absolute paths (for example, from sequences)
892: my $absolute;
893: my $pathprefix;
894: if ($line=~m|^/res/| && $startdir ne '') {
895: $absolute=1;
896: $pathprefix='';
897: } else {
898: $absolute=0;
899: $pathprefix=$startdir;
900: }
901: my $dirptr=16384;
902: #SB my $fileclr="#ffffe6";
903: my $iconpath= $r->dir_config('lonIconsURL') . '/';
904:
905: my @filecom = split (/\&/,$line);
906: my @pathcom = split (/\//,$filecom[0]);
907: my $listname = $pathcom[scalar(@pathcom)-1];
908: my $fnptr = $filecom[3]&$dirptr;
909: my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
910: $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
911: my $nowOpen = ($diropen eq 'opened' ? 1 : 0);
912:
913: my $tabtag='</td>';
914: my $i=0;
915: while ($i<=16) {
916: $tabtag=join('',$tabtag,"<td> </td>")
917: if ($i != 9 &&
918: $hash{'display_attrs_'.$i} == 1);
919: $i++;
920: }
921: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
922:
923: # display uplink arrow
924: if ($filecom[1] eq 'viewOneUp') {
925: my $updir=$startdir;
926: # -------------- Filter out sequence containment in crumbs and "recent folders"
927: $updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
928: $updir=~s/\/+/\//g;
929:
930: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
931: $r->print(&Apache::loncommon::start_data_table_row()); # valign="$valign" ?!?
932: $r->print($extrafield);
933: $r->print("<td>\n");
934: $r->print ('<form method="post" name="dirpathUP" action="'.$updir.
935: '/" '.
936: 'onsubmit="return rep_dirpath(\'UP\','.
937: 'document.forms.fileattr.acts.value)" '.
938: 'enctype="application/x-www-form-urlencoded"'.
939: '>'."\n");
940: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
941: $r->print ('<input type="hidden" name="openuri" value="'.
942: $startdir.'" />'."\n");
943: $r->print ('<input type="hidden" name="acts" value="" />'."\n");
944: $r->print ('<a href="#" onclick="document.dirpathUP.submit()"><img src="'.$iconpath.'arrow.up.gif"');
945: $r->print (' alt="'.$msg.'" class="LC_fileicon" />'.
946: "\n");
947: $r->print(&mt("Up")."</a></form></td><td>$tabtag");
948: $r->print(&Apache::loncommon::end_data_table_row());
949: return OK;
950: }
951: # Do we have permission to look at this?
952: if($filecom[15] ne '1') { return OK if ((!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])) && (!&Apache::lonnet::allowed('bro',$pathprefix.$filecom[0]))); }
953:
954: # make absolute links appear on different background
955: #SB if ($absolute) { $fileclr='#ccdd99'; }
956:
957: # display domain
958: if ($filecom[1] eq 'domain') {
959: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n")
960: if ($env{'form.dirPointer'} eq "on");
961: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
962: $r->print(&Apache::loncommon::start_data_table_row()); # valign="$valign" ?!?"
963: $r->print($extrafield);
964: $r->print("<td>");
965: &begin_form ($r,$filecom[0]);
966: my $anchor = $filecom[0];
967: $anchor =~ s/\W//g;
968: $r->print ('<a name="'.$anchor.'"></a>');
969: $r->print ('<input type="hidden" name="acts" value="" />');
970: $r->print ('<a href="#" onclick="document.dirpath'.($dnum-1).'.submit()"><img src="'.$iconpath.'arrow.'.($nowOpen ? "open" : "closed" ).'.gif"');
971: $r->print (' alt="'.$msg.'" class="LC_fileicon" /></a>'.
972: "\n");
973: my $quotable_filecom = &Apache::loncommon::escape_single($filecom[0]);
974: $r->print ('<a href="javascript:gothere(\''.$quotable_filecom.
975: '\')"><img alt="" src="'.$iconpath.'server.gif"');
976: $r->print (' class="LC_fileicon" />'."\n");
977: $r->print (&mt("Domain")." - $listname </a>");
978: if (&Apache::lonnet::domain($listname,'description')) {
979: $r->print("<br />(".&Apache::lonnet::domain($listname,'description').
980: ")");
981: }
982: $r->print("</form></td><td>$tabtag");
983: $r->print(&Apache::loncommon::end_data_table_row());
984: return OK;
985:
986: # display user directory
987: }
988: if ($filecom[1] eq 'user') {
989: # $r->print("<tr valign=$valign bgcolor=\"$fileclr\">$extrafield");
990: my $curdir = $startdir.$filecom[0].'/';
991: my $anchor = $curdir;
992: $anchor =~ s/\W//g;
993: #SB $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
994: $r->print(&Apache::loncommon::start_data_table_row()
995: .$extrafield.'<td class="LC_'.$valign.'">');
996: &begin_form ($r,$curdir);
997: $r->print ('<a name="'.$anchor.'"></a><img alt="" src="'.$iconpath.
998: 'whitespace_21.gif" class="LC_icon" />'."\n");
999: $r->print ('<input type="hidden" name="acts" value="" />');
1000: $r->print ('<a href="#" onclick="document.dirpath'.($dnum-1).'.submit()">');
1001: $r->print ('<img src="'.$iconpath.'arrow.'.($nowOpen ? "open" : "closed" ).
1002: '.gif" class="LC_fileicon"');
1003: $r->print (' alt="'.$msg.'"/></a>'.
1004: "\n");
1005: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
1006: $r->print ('<a href="javascript:gothere(\''.$quotable_curdir
1007: .'\')"><img alt="'.$msg.'" src="'.
1008: $iconpath.'quill.gif" class="LC_fileicon" />');
1009: my $domain=(split(m|/|,$startdir))[2];
1010: my $plainname=&Apache::loncommon::plainname($listname,$domain);
1011: $r->print ($listname.'</a>');
1012:
1013: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
1014: # Wishlistlink
1015: $r->print('</form></td><td><a href="javascript:;" '.
1016: 'title="'.&mt('Save a link for this folder in your personal Stored Links repository').'" '.
1017: 'onclick="set_wishlistlink('."'$plainname','$startdir$listname'".')">'.
1018: '<img class="LC_icon" src="/res/adm/pages/wishlist.png" '.
1019: 'alt="'.&mt('save in Stored Links').'" style="width:22px;"/></a>'.$tabtag);
1020: $r->print(&Apache::loncommon::end_data_table_row());
1021: return OK;
1022: }
1023:
1024: # display file
1025: if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
1026: my $title;
1027: my $filelink = $pathprefix.$filecom[0];
1028: if ($hash{'display_attrs_0'} == 1) {
1029: $title = &Apache::lonnet::gettitle($filelink);
1030: }
1031: my @file_ext = split (/\./,$listname);
1032: my $curfext = $file_ext[-1];
1033: if (@Omit) {
1034: foreach (@Omit) { return OK if (lc($curfext) eq $_); }
1035: }
1036: if (@Only) {
1037: my $skip = 1;
1038: foreach (@Only) { $skip = 0 if (lc($curfext) eq $_); }
1039: return OK if ($skip > 0);
1040: }
1041: # Set the icon for the file
1042: my $iconname = &Apache::loncommon::icon($listname);
1043: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">);
1044: $r->print(&Apache::loncommon::start_data_table_row()); #SB valign="$valign" ?!?
1045: $r->print('<td class="LC_middle LC_nobreak">');
1046:
1047: if ($env{'form.catalogmode'} eq 'interactive') {
1048: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
1049: $r->print("<a href=\"javascript:select_data(\'",
1050: $quotable_filelink,"')\">");
1051: $r->print("<img alt=\"\" src='",$iconpath,"select.gif' class='LC_icon' /></a>".
1052: "\n");
1053: $r->print('</td><td class="LC_middle">');
1054: } elsif ($env{'form.catalogmode'} eq 'import') {
1055: $r->print("<form name='form$fnum' action=''>\n");
1056: $r->print("<input type='checkbox' name='filelink"."' ".
1057: "value='$filelink' onclick='".
1058: "javascript:queue(\"form$fnum\")' ");
1059: if ($hash{'store_'.$filelink}) {
1060: $r->print("checked");
1061: }
1062: $r->print(" />\n");
1063: $r->print('</form></td><td class="LC_middle">');
1064: $hash{"pre_${fnum}_link"}=$filelink;
1065: $hash{"pre_${fnum}_title"}=$title;
1066: if (!$hash{"pre_${fnum}_title"}) {
1067: $hash{"pre_${fnum}_title"} = 'Not_retrieved';
1068: }
1069: $fnum++;
1070: }
1071: # Form to open or close sequences
1072: if ($filelink=~/\.(page|sequence)$/) {
1073: my $curdir = $startdir.$filecom[0].'/';
1074: &begin_form($r,$curdir);
1075: $indent--;
1076: }
1077: # General indentation
1078: my $count = 0;
1079: while ($count < $indent) {
1080: $r->print('<img alt="" src="'.$iconpath.'whitespace_21.gif"
1081: class="LC_icon" />');
1082: $count++;
1083: }
1084: # Sequence open/close icon
1085: if ($filelink=~/\.(page|sequence)$/) {
1086: my $curdir = $startdir.$filecom[0].'/';
1087: my $anchor = $curdir;
1088: $anchor =~ s/\W//g;
1089: $r->print ('<input type="hidden" name="acts" value="" />');
1090: $r->print ('<a name="'.$anchor.'"></a>');
1091: $r->print ('<a href="#" onclick="document.dirpath'.($dnum-1).'.submit()">');
1092: $r->print ('<img src="'.$iconpath.'arrow.'.($nowOpen ? "open" : "closed" ).
1093: '.gif" class="LC_fileicon"');
1094: $r->print (' alt="'.$msg.'" /></a>'.
1095: "\n");
1096: }
1097: # Filetype icons
1098: $r->print("<img alt=\"\" src='$iconname' class='LC_fileicon' />\n");
1099: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
1100:
1101: $r->print (" <a href=\"javascript:openMyModal('".$quotable_filelink."?inhibitmenu=yes',500,500,'yes');\">$listname</a> ");
1102: $quotable_filelink = &Apache::loncommon::escape_single($filelink.'.meta');
1103: &Apache::loncommon::inhibit_menu_check(\$quotable_filelink);
1104: $r->print (" (<a href=\"javascript:openMyModal('".$quotable_filelink."?inhibitmenu=yes',500,500,'yes');\">".&mt('metadata')."</a>) ");
1105: # Close form to open/close sequence
1106: if ($filelink=~/\.(page|sequence)$/) {
1107: $r->print('</form>');
1108: }
1109: $r->print("</td>\n");
1110: # Wishlistlink
1111: $r->print('<td><a href="javascript:;" title="'.&mt('Save a link for this resource in your personal Stored Links repository').'" '.
1112: 'onclick="set_wishlistlink('."'".&Apache::lonnet::gettitle($filelink).
1113: "','$startdir$listname'".')">'.
1114: '<img class="LC_icon" src="/res/adm/pages/wishlist.png" '.
1115: 'alt="'.&mt('save in Stored Links').'" style="width:22px;"/></a></td>');
1116: if ($hash{'display_attrs_0'} == 1) {
1117: $r->print('<td> '.($title eq '' ? ' ' : $title).
1118: ' </td>'."\n");
1119: }
1120: $r->print('<td class="LC_right"> ',
1121: $filecom[8]," </td>\n")
1122: if $hash{'display_attrs_1'} == 1;
1123: $r->print('<td class="LC_nobreak"> '.
1124: (&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
1125: if $hash{'display_attrs_2'} == 1;
1126: $r->print('<td class="LC_nobreak"> '.
1127: (&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
1128: if $hash{'display_attrs_3'} == 1;
1129:
1130: if ($hash{'display_attrs_4'} == 1) {
1131: my $author = &Apache::lonnet::metadata($filelink,'author');
1132: $r->print('<td class="LC_nobreak"> '.($author eq '' ? ' ' : $author).
1133: " </td>\n");
1134: }
1135: if ($hash{'display_attrs_5'} == 1) {
1136: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1137: # $keywords = ' ' if (!$keywords);
1138: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1139: " </td>\n");
1140: }
1141:
1142: if ($hash{'display_attrs_6'} == 1) {
1143: my $lang = &Apache::lonnet::metadata($filelink,'language');
1144: $lang = &Apache::loncommon::languagedescription($lang);
1145: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1146: " </td>\n");
1147: }
1148: if ($hash{'display_attrs_8'} == 1) {
1149: # statistics
1150: &dynmetaread($filelink);
1151: $r->print("<td>");
1152:
1153: for (qw(count course stdno avetries difficulty disc clear technical
1154: correct helpful depth)) {
1155:
1156: dynmetaprint($r,$filelink,$_);
1157: }
1158:
1159: $r->print(" </td>\n");
1160:
1161: }
1162: if ($hash{'display_attrs_10'} == 1) {
1163: my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
1164: if($source eq 'open') {
1165: my $sourcelink = &Apache::lonsource::make_link($filelink,$listname);
1166: my $quotable_sourcelink = &Apache::loncommon::escape_single($sourcelink);
1167: &Apache::loncommon::inhibit_menu_check(\$quotable_sourcelink);
1168: $r->print('<td>'."<a href=\"javascript:openWindow('"
1169: .$quotable_sourcelink.
1170: "', 'previewsource', '700', '700', 'no', 'yes','yes');\"".
1171: " target=\"_self\">".&mt('Source Code')."</a> "."</td>\n");
1172: } else { #A cuddled else. :P
1173: $r->print("<td> </td>\n");
1174: }
1175: }
1176: if ($hash{'display_attrs_11'} == 1) {
1177: # links
1178: &dynmetaread($filelink);
1179: $r->print('<td>');
1180: &coursecontext($r,$filelink);
1181: for (qw(goto_list comefrom_list sequsage_list dependencies course_list)) {
1182: dynmetaprint($r,$filelink,$_);
1183: }
1184: $r->print('</td>');
1185: }
1186:
1187:
1188:
1189: if ($hash{'display_attrs_7'} == 1) {
1190: # Show resource
1191: my $output=&showpreview($filelink);
1192: $r->print('<td class="LC_fontsize_medium">'.($output eq '' ? ' ':$output).
1193: " </td>\n");
1194: }
1195:
1196: if ($hash{'display_attrs_12'} == 1) {
1197: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1198: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1199: " </td>\n");
1200: }
1201:
1202: if ($hash{'display_attrs_13'} == 1) {
1203: my $notes = &Apache::lonnet::metadata($filelink,'notes');
1204: $r->print('<td> '.($notes eq '' ? ' ' : $notes).
1205: " </td>\n");
1206: }
1207:
1208: if ($hash{'display_attrs_14'} == 1) {
1209: my $abstract = &Apache::lonnet::metadata($filelink,'abstract');
1210: $r->print('<td> '.($abstract eq '' ? ' ' : $abstract).
1211: " </td>\n");
1212: }
1213:
1214: if ($hash{'display_attrs_15'} == 1) {
1215: my $gradelevel = &Apache::lonnet::metadata($filelink,'gradelevel');
1216: $r->print('<td> '.($gradelevel eq '' ? ' ' : $gradelevel).
1217: " </td>\n");
1218: }
1219:
1220: if ($hash{'display_attrs_16'} == 1) {
1221: my $standards = &Apache::lonnet::metadata($filelink,'standards');
1222: $r->print('<td> '.($standards eq '' ? ' ' : $standards).
1223: " </td>\n");
1224: }
1225:
1226: $r->print(&Apache::loncommon::end_data_table_row());
1227: }
1228:
1229:
1230:
1231: # -- display directory
1232: if ($fnptr == $dirptr) {
1233: my $curdir = $startdir.$filecom[0].'/';
1234: my $anchor = $curdir;
1235: $anchor =~ s/\W//g;
1236: #SB $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
1237: $r->print(&Apache::loncommon::start_data_table_row()); # SB: bgcolor suggestion: darkgrey ("LC_info_row"?!?)
1238: # $r->print('<tr class="LC_info_row">');
1239: $r->print($extrafield.'<td class="LC_middle LC_nobreak">');
1240: &begin_form ($r,$curdir);
1241: my $indentm1 = $indent-1;
1242: my $count = 0;
1243: while ($count < $indentm1) {
1244: $r->print ('<img alt="" src="',$iconpath
1245: ,'whitespace_21.gif" class="LC_icon" />');
1246: $count++;
1247: }
1248: $r->print ('<input type="hidden" name="acts" value="" />');
1249: $r->print ('<a name="'.$anchor.'"></a>');
1250: $r->print ('<a href="#" onclick="document.dirpath'.($dnum-1).'.submit()"><img src="'.$iconpath.
1251: 'arrow.'.($nowOpen ? "open" : "closed" ).'.gif"');
1252: $r->print (' alt="'.$msg.'" class="LC_fileicon" /></a>'.
1253: "\n");
1254: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
1255:
1256: my $location = &Apache::loncommon::lonhttpdurl("/adm/lonIcons");
1257: my $icon = "navmap.folder.".($nowOpen ? "open":"closed").'.gif';
1258: $r->print ('<a href="javascript:gothere('
1259: ."'$quotable_curdir'".');">'
1260: .'<img class="LC_fileicon" alt="'.&mt('Open Folder').'" src="'
1261: .$location.'/'.$icon.'" />'
1262: ."\n");
1263: $r->print ("$listname</a></form>");
1264: # Wishlistlink
1265: $r->print('</td><td><a href="javascript:;" '.
1266: 'title="'.&mt('Save a link for this folder in Stored Links').'" '.
1267: 'onclick="set_wishlistlink('."'$listname','$startdir$listname'".')">'.
1268: '<img class="LC_icon" src="/res/adm/pages/wishlist.png" '.
1269: 'alt="'.&mt('save in Stored Links').'" style="width:22px;"/></a></td>');
1270: # Attributes
1271: my $filelink = $startdir.$filecom[0].'/default';
1272:
1273: if ($hash{'display_attrs_0'} == 1) {
1274: my $title = &Apache::lonnet::gettitle($filelink);
1275: $r->print('<td> '.($title eq '' ? ' ' : $title).
1276: ' </td>'."\n");
1277: }
1278: $r->print('<td class="LC_right"> ',
1279: $filecom[8]," </td>\n")
1280: if $hash{'display_attrs_1'} == 1;
1281: $r->print('<td class="LC_break"> '.
1282: (&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
1283: if $hash{'display_attrs_2'} == 1;
1284: $r->print('<td class="LC_break"> '.
1285: (&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
1286: if $hash{'display_attrs_3'} == 1;
1287:
1288: if ($hash{'display_attrs_4'} == 1) {
1289: my $author = &Apache::lonnet::metadata($filelink,'author');
1290: $r->print('<td> '.($author eq '' ? ' ' : $author).
1291: " </td>\n");
1292: }
1293: if ($hash{'display_attrs_5'} == 1) {
1294: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1295: # $keywords = ' ' if (!$keywords);
1296: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1297: " </td>\n");
1298: }
1299: if ($hash{'display_attrs_6'} == 1) {
1300: my $lang = &Apache::lonnet::metadata($filelink,'language');
1301: $lang = &Apache::loncommon::languagedescription($lang);
1302: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1303: " </td>\n");
1304: }
1305:
1306: if ($hash{'display_attrs_8'} == 1) {
1307: $r->print('<td> </td>');
1308: }
1309: if ($hash{'display_attrs_10'} == 1) {
1310: $r->print('<td> </td>');
1311: }
1312: if ($hash{'display_attrs_7'} == 1) {
1313: $r->print('<td> </td>');
1314: }
1315: if ($hash{'display_attrs_11'} == 1) {
1316: $r->print('<td> </td>');
1317: }
1318: if ($hash{'display_attrs_12'} == 1) {
1319: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1320: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1321: " </td>\n");
1322: }
1323: if ($hash{'display_attrs_13'} == 1) {
1324: my $notes = &Apache::lonnet::metadata($filelink,'notes');
1325: $r->print('<td> '.($notes eq '' ? ' ' : $notes).
1326: " </td>\n");
1327: }
1328:
1329: if ($hash{'display_attrs_14'} == 1) {
1330: my $abstract = &Apache::lonnet::metadata($filelink,'abstract');
1331: $r->print('<td> '.($abstract eq '' ? ' ' : $abstract).
1332: " </td>\n");
1333: }
1334:
1335: if ($hash{'display_attrs_15'} == 1) {
1336: my $gradelevel = &Apache::lonnet::metadata($filelink,'gradelevel');
1337: $r->print('<td> '.($gradelevel eq '' ? ' ' : $gradelevel).
1338: " </td>\n");
1339: }
1340:
1341: if ($hash{'display_attrs_16'} == 1) {
1342: my $standards = &Apache::lonnet::metadata($filelink,'standards');
1343: $r->print('<td> '.($standards eq '' ? ' ' : $standards).
1344: " </td>\n");
1345: }
1346:
1347:
1348: $r->print(&Apache::loncommon::end_data_table_row());
1349: }
1350:
1351: }
1352:
1353: sub coursecontext {
1354: my ($r,$filelink)=@_;
1355: my $filesymb=&Apache::lonnet::symbread($filelink);
1356: if ($filesymb) {
1357: my ($map,$index,$resource)=&Apache::lonnet::decode_symb($filesymb);
1358: $r->print(&mt('Already in this course:<br />[_1] in folder/map [_2].<br />',
1359: &Apache::lonnet::gettitle($resource),
1360: &Apache::lonnet::gettitle($map)));
1361: }
1362: }
1363:
1364: sub showpreview {
1365: my ($filelink)=@_;
1366: if ($filelink=~m-^(/ext/|http://)-) {
1367: return &mt('External Resource, preview not enabled');
1368: }
1369: my ($curfext)=($filelink=~/\.(\w+)$/);
1370: my $output='';
1371: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
1372: if ($embstyle eq 'ssi') {
1373: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
1374: '.tmp';
1375: if ((!$env{'form.updatedisplay'}) &&
1376: (-e $cache)) {
1377: open(FH,$cache);
1378: $output=join("\n",<FH>);
1379: close(FH);
1380: } else {
1381: # In update display mode, remove old cache. This is done to retroactively
1382: # clean up course context renderings.
1383: if (-e $cache) {
1384: unlink($cache);
1385: }
1386: $output=&Apache::lonnet::ssi_body($filelink);
1387: # Is access denied? Don't render, don't store
1388: if ($output=~/LONCAPAACCESSCONTROLERRORSCREEN/s) {
1389: $output='';
1390: # Was this rendered in course content? Don't store
1391: } elsif (!&Apache::lonnet::symbread($filelink)) {
1392: open(FH,">$cache");
1393: print FH $output;
1394: close(FH);
1395: }
1396: }
1397: } elsif ($embstyle eq 'img') {
1398: $output='<img alt="'.&mt('Preview').'" src="'.$filelink.'" />';
1399: } elsif ($filelink=~m{^/res/($match_domain)/($match_username)/}) {
1400: $output='<img alt="'.&mt('Preview').'" src="http://'.
1401: &Apache::lonnet::hostname(&Apache::lonnet::homeserver($2,$1)).
1402: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1403: }
1404: return $output;
1405: }
1406:
1407: sub dynmetaprint {
1408: my ($r,$filelink,$item)=@_;
1409: if ($dynhash{$filelink}->{$item}) {
1410: $r->print("\n<br />".$fieldnames{$item}.': '.
1411: &Apache::lonmeta::prettyprint($item,
1412: $dynhash{$filelink}->{$item},
1413: (($env{'form.catalogmode'} ne 'import')?'preview':''),
1414: '',
1415: (($env{'form.catalogmode'} eq 'import')?'document.forms.fileattr':''),1));
1416: }
1417: }
1418:
1419: # ------------------- prints the beginning of a form for directory or file link
1420: sub begin_form {
1421: my ($r,$uri) = @_;
1422: my $anchor = $uri;
1423: $anchor =~ s/\W//g;
1424: $uri=&Apache::loncommon::escape_single($uri);
1425: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1426: '#'.$anchor.
1427: '" onsubmit="return rep_dirpath(\''.$dnum.'\''.
1428: ',document.forms.fileattr.acts.value)" '.
1429: 'enctype="application/x-www-form-urlencoded">'."\n");
1430: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'" />'.
1431: "\n");
1432: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n");
1433: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
1434: $dnum++;
1435: }
1436:
1437: # --------- settings whenever the user causes the indexer window to be launched
1438: sub start_fresh_session {
1439: my ($hash) = @_;
1440: delete $hash->{'form.catalogmode'};
1441: delete $hash->{'form.mode'};
1442: delete $hash->{'form.form'};
1443: delete $hash->{'form.element'};
1444: delete $hash->{'form.omit'};
1445: delete $hash->{'form.only'};
1446: foreach (keys %{$hash}) {
1447: delete $hash->{$_} if (/^(pre_|store)/);
1448: }
1449: }
1450:
1451: # ------------------------------------------------------------------- setvalues
1452: sub setvalues {
1453: # setvalues is used in registerurl to synchronize the database
1454: # hash and environment hashes
1455: my ($H1,$h1key,$H2,$h2key) =@_;
1456: #
1457: if (exists $H2->{$h2key}) {
1458: $H1->{$h1key} = $H2->{$h2key};
1459: } elsif (exists $H1->{$h1key}) {
1460: $H2->{$h2key} = $H1->{$h1key};
1461: }
1462: }
1463:
1464: 1;
1465:
1466: sub cleanup {
1467: if (tied(%hash)){
1468: &Apache::lonnet::logthis('Cleanup indexer: hash');
1469: }
1470: return OK;
1471: }
1472:
1473:
1474:
1475:
1476:
1477: =head1 NAME
1478:
1479: Apache::lonindexer - mod_perl module for cross server filesystem browsing
1480:
1481: =head1 SYNOPSIS
1482:
1483: Invoked by /etc/httpd/conf/srm.conf:
1484:
1485: <LocationMatch "^/res.*/$">
1486: SetHandler perl-script
1487: PerlHandler Apache::lonindexer
1488: </LocationMatch>
1489:
1490: =head1 INTRODUCTION
1491:
1492: This module enables a scheme of browsing across a cross server.
1493:
1494: This is part of the LearningOnline Network with CAPA project
1495: described at http://www.lon-capa.org.
1496:
1497: =head1 BEGIN SUBROUTINE
1498:
1499: This routine is only run once after compilation.
1500:
1501: =over 4
1502:
1503: =item *
1504:
1505: Initializes %language hash table.
1506:
1507: =back
1508:
1509: =head1 HANDLER SUBROUTINE
1510:
1511: This routine is called by Apache and mod_perl.
1512:
1513: =over 4
1514:
1515: =item *
1516:
1517: read in machine configuration variables
1518:
1519: =item *
1520:
1521: see if called from an interactive mode
1522:
1523: =item *
1524:
1525: refresh environment with user database values (in %hash)
1526:
1527: =item *
1528:
1529: define extra fields and buttons in case of special mode
1530:
1531: =item *
1532:
1533: set catalogmodefunctions to have extra needed javascript functionality
1534:
1535: =item *
1536:
1537: print header
1538:
1539: =item *
1540:
1541: evaluate actions from previous page (both cumulatively and chronologically)
1542:
1543: =item *
1544:
1545: output title
1546:
1547: =item *
1548:
1549: get state of file attributes to be showing
1550:
1551: =item *
1552:
1553: output state of file attributes to be showing
1554:
1555: =item *
1556:
1557: output starting row to the indexed file/directory hierarchy
1558:
1559: =item *
1560:
1561: read in what directories have previously been set to "open"
1562:
1563: =item *
1564:
1565: if not at top level, provide an uplink arrow
1566:
1567: =item *
1568:
1569: recursively go through all the directories and output as appropriate
1570:
1571: =item *
1572:
1573: information useful for group import
1574:
1575: =item *
1576:
1577: end the tables
1578:
1579: =item *
1580:
1581: end the output and return
1582:
1583: =back
1584:
1585: =head1 OTHER SUBROUTINES
1586:
1587: =over 4
1588:
1589: =item *
1590:
1591: scanDir - recursive scan of a directory
1592:
1593: =item *
1594:
1595: get_list - get complete matched list based on the uri (returns an array)
1596:
1597: =item *
1598:
1599: match_ext - filters out files based on extensions (returns an array)
1600:
1601: =item *
1602:
1603: display_line - displays one line in appropriate table format
1604:
1605: =item *
1606:
1607: begin_form - prints the beginning of a form for directory or file link
1608:
1609: =item *
1610:
1611: start_fresh_session - settings whenever the user causes the indexer window
1612: to be launched
1613:
1614: =back
1615:
1616: =cut
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