1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.206 2010/03/31 13:20:46 raeburn 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 $diropendb =
124: "/home/httpd/perl/tmp/$env{'user.domain'}_$env{'user.name'}_sel_res.db";
125: %hash = ();
126: {
127: my %dbfile;
128: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_WRITER(),0640)) {
129: if ($env{'form.launch'} eq '1') {
130: &start_fresh_session(\%dbfile);
131: }
132: while(my($key,$value)=each(%dbfile)) {
133: $hash{$key}=$value;
134: }
135: untie(%dbfile);
136: }
137: }
138: # - Evaluate actions from previous page (both cumulatively and chronologically)
139: if ($env{'form.catalogmode'} eq 'import' || $hash{'form.catalogmode'} eq 'import') {
140: &Apache::groupsort::update_actions_hash(\%hash);
141: }
142:
143: {
144: #Hijack lonindexer to verify a title and be close down.
145: if ($env{'form.launch'} eq '2') {
146: &Apache::loncommon::content_type($r,'text/html');
147: my $extra='';
148: if (defined($env{'form.titleelement'}) &&
149: $env{'form.titleelement'} ne '') {
150: my $verify_title = &Apache::lonnet::gettitle($env{'form.acts'});
151: # &Apache::lonnet::logthis("Hrrm $env{'form.acts'} -- $verify_title");
152: $verify_title=~s/'/\\'/g;
153: $extra='window.opener.document.forms["'.$env{'form.form'}.'"].elements["'.$env{'form.titleelement'}.'"].value=\''.$verify_title.'\';';
154: }
155: my $js = <<ENDSUBM;
156: <script type="text/javascript">
157: function load() {
158: window.opener.document.forms["$env{'form.form'}"]
159: .elements["$env{'form.element'}"]
160: .value='$env{'form.acts'}';
161: $extra
162: window.close();
163: }
164: </script>
165: ENDSUBM
166: $r->print(&Apache::loncommon::start_page(undef,$js,
167: {'only_body' =>1,
168: 'add_entries' =>
169: {'onload' => "load();"},}
170: ).
171: &Apache::loncommon::end_page());
172: return OK;
173: }
174:
175: # -------------------- refresh environment with user database values (in %hash)
176: &setvalues(\%hash,'form.catalogmode',\%env,'form.catalogmode' );
177:
178: # --------------------- define extra fields and buttons in case of special mode
179: if ($env{'form.catalogmode'} eq 'interactive') {
180: #SB $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
181: $extrafield='<td class="LC_bottom">'.
182: '<img alt="" src="'.$iconpath.'whitespace1.gif"'.
183: ' class="LC_icon" /></td>';
184: $colspan=" colspan='2' ";
185: my $cl=&mt('Close');
186: $closebutton=<<END;
187: <input type="button" name="close" value='$cl' onclick="self.close()" />
188: END
189: }
190: elsif ($env{'form.catalogmode'} eq 'import') {
191: #SB $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
192: $extrafield='<td class="LC_bottom">'.
193: '<img alt="" src="'.$iconpath.'whitespace1.gif"'.
194: ' class="LC_icon" /></td>';
195: $colspan=" colspan='2' ";
196: my $cl=&mt('Close');
197: my $gi=&mt('Import');
198: $closebutton=<<END;
199: <input type="button" name="close" value='$cl' onclick="self.close()" />
200: END
201: $groupimportbutton=<<END;
202: <input type="button" name="groupimport" value='$gi'
203: onclick="javascript:select_group()" />
204: END
205: }
206: # Additions made by Matthew to make the browser a little easier to deal
207: # with in the future.
208: #
209: # $mode (at this time) indicates if we are in edit mode.
210: # $form is the name of the form that the URL is placed when the
211: # selection is made.
212: # $element is the name of the element in $formname which receives
213: # the URL.
214: #&Apache::lonxml::debug('Checking mode, form, element');
215: &setvalues(\%hash,'form.mode' ,\%env,'form.mode' );
216: &setvalues(\%hash,'form.form' ,\%env,'form.form' );
217: &setvalues(\%hash,'form.element' ,\%env,'form.element');
218: &setvalues(\%hash,'form.titleelement',\%env,'form.titleelement');
219: &setvalues(\%hash,'form.only' ,\%env,'form.only' );
220: &setvalues(\%hash,'form.omit' ,\%env,'form.omit' );
221:
222: # Deal with 'omit' and 'only'
223: if (exists $env{'form.omit'}) {
224: @Omit = split(',',$env{'form.omit'});
225: }
226: if (exists $env{'form.only'}) {
227: @Only = split(',',$env{'form.only'});
228: }
229:
230: my $mode = $env{'form.mode'};
231: my ($form,$element,$titleelement);
232: if ($mode eq 'edit' || $mode eq 'parmset') {
233: $form = $env{'form.form'};
234: $element = $env{'form.element'};
235: $titleelement = $env{'form.titleelement'};
236: }
237: #&Apache::lonxml::debug("mode=$mode form=$form element=$element titleelement=$titleelement");
238: # ------ set catalogmodefunctions to have extra needed javascript functionality
239: my $catalogmodefunctions='';
240: if ($env{'form.catalogmode'} eq 'interactive' or
241: $env{'form.catalogmode'} eq 'import') {
242: # The if statement below sets us up to use the old version
243: # by default (ie. if $mode is undefined). This is the easy
244: # way out. Hopefully in the future I'll find a way to get
245: # the calls dealt with in a more comprehensive manner.
246:
247: #
248: # There is now also mode "simple", which is for the simple version of the rat
249: #
250: #
251: if (!defined($mode) || ($mode ne 'edit' && $mode ne 'parmset')) {
252: my $location = "/adm/groupsort?&inhibitmenu=yes&catalogmode=import&";
253: $location .= "mode=".$mode."&";
254: $location .= "acts=";
255: $catalogmodefunctions=<<"END";
256: function select_data(url) {
257: changeURL(url);
258: self.close();
259: }
260: function select_group() {
261: window.location="$location"+document.forms.fileattr.acts.value;
262: }
263: function changeURL(val) {
264: if (opener.inf) {
265: if (opener.inf.document.forms.resinfo.elements.u) {
266: opener.inf.document.forms.resinfo.elements.u.value=val;
267: }
268: }
269: }
270: END
271: } elsif ($mode eq 'edit') { # we are in 'edit' mode
272: my $location = "/adm/groupsort?catalogmode=interactive&";
273: $location .= "form=$form&element=$element&mode=edit&acts=";
274: $catalogmodefunctions=<<END;
275: // mode = $mode
276: function select_data(url) {
277: var location = "/res/?launch=2&form=$form&element=$element&titleelement=$titleelement&acts=" + url;
278: window.location=location;
279: if (window.opener.document.forms["$form"].elements["$element"].value != url) {
280: window.opener.unClean();
281: }
282: }
283: function select_group() {
284: window.location="$location"+document.forms.fileattr.acts.value;
285: }
286:
287: function changeURL(val) {
288: if (window.opener.document) {
289: window.opener.document.forms["$form"].elements["$element"].value=val;
290: } else {
291: alert("The file you selected is: "+val);
292: }
293: }
294: END
295: if (!$titleelement) {
296: $catalogmodefunctions.='function changeTitle(val) {}';
297: } else {
298: $catalogmodefunctions.=<<END;
299: function changeTitle(val) {
300: if (window.opener.document) {
301: window.opener.document.forms["$form"].elements["$titleelement"].value=val;
302: } else {
303: alert("The title of the file you selected is: "+val);
304: }
305: }
306: END
307: }
308: } elsif ($mode eq 'parmset') {
309: my $location = "/adm/groupsort?catalogmode=interactive&";
310: $location .= "form=$form&element=$element&mode=parmset&acts=";
311: $catalogmodefunctions=<<END;
312: // mode = $mode
313: function select_data(url) {
314: changeURL(url);
315: self.close();
316: }
317:
318: function select_group() {
319: window.location="$location"+document.forms.fileattr.acts.value;
320: }
321:
322: function changeURL(val) {
323: if (window.opener.document) {
324: var elementname = "$element";
325: window.opener.document.forms["$form"].elements[elementname].value=val;
326: } else {
327: alert("The file you selected is: "+val);
328: }
329: }
330:
331: END
332: }
333: }
334: $catalogmodefunctions.=<<END;
335: var acts='';
336: function rep_dirpath(suffix,val) {
337: eval("document.forms.dirpath"+suffix+".acts.value=val");
338: }
339: END
340: if ($env{'form.catalogmode'} eq 'import') {
341: $catalogmodefunctions.=<<END;
342: function queue(val) {
343: if (eval("document.forms."+val+".filelink.checked")) {
344: var l=val.length;
345: var v=val.substring(4,l);
346: document.forms.fileattr.acts.value+='1a'+v+'b';
347: }
348: else {
349: var l=val.length;
350: var v=val.substring(4,l);
351: document.forms.fileattr.acts.value+='0a'+v+'b';
352: }
353: }
354: END
355: }
356:
357: my $inhibit_menu = "+'&".&Apache::loncommon::inhibit_menu_check()."'";
358: # ---------------------------------------------------------------- Print Header
359:
360: my $js = <<"ENDHEADER";
361: <script type="text/javascript">
362: // <![CDATA[
363: $catalogmodefunctions;
364: function update_only(field) {
365: alert(field.name);
366: }
367: function checkAll() {
368: var numForms = document.forms.length;
369: for (i=0;i<numForms;i++) {
370: var numElements = document.forms[i].elements.length;
371: for (j=0;j<numElements;j++){
372: var fieldName = document.forms[i].elements[j].name;
373: if (fieldName == 'filelink') {
374: document.forms[i].elements[j].checked = true;
375: queue(document.forms[i].name);
376: }
377: }
378: }
379: }
380: function uncheckAll() {
381: var numForms = document.forms.length;
382: for (i=0;i<numForms;i++) {
383: var numElements = document.forms[i].elements.length;
384: for (j=0;j<numElements;j++){
385: var fieldName = document.forms[i].elements[j].name;
386: if (fieldName == 'filelink') {
387: document.forms[i].elements[j].checked = false;
388: queue(document.forms[i].name);
389: }
390: }
391: }
392: }
393: function openWindow(url, wdwName, w, h, toolbar,scrollbar,locationbar) {
394: var xpos = (screen.width-w)/2;
395: xpos = (xpos < 0) ? '0' : xpos;
396: var ypos = (screen.height-h)/2-30;
397: ypos = (ypos < 0) ? '0' : ypos;
398: var options = "width=" + w + ",height=" + h + ",screenx="+xpos+",screeny="+ypos+",";
399: options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
400: options += "menubar=no,toolbar="+toolbar+",location="+locationbar+",directories=no";
401: var newWin = window.open(url, wdwName, options);
402: newWin.focus();
403: }
404: function gothere(val) {
405: window.location=val+'?acts='+document.forms.fileattr.acts.value$inhibit_menu;
406: }
407: // ]]>
408: </script>
409: ENDHEADER
410:
411: my ($headerdom)=($uri=~m{^/res/($match_domain)/});
412:
413: if ($env{'form.catalogmode'}) {
414: # "Popup mode"
415: $r->print(&Apache::loncommon::start_page('Browse published resources',$js,
416: {'only_body' => 1,
417: 'domain' => $headerdom,}));
418: } else {
419: # Only display page header and breadcrumbs in non-popup mode
420: &Apache::lonhtmlcommon::clear_breadcrumbs();
421: &Apache::lonhtmlcommon::add_breadcrumb({
422: 'text' => 'Browse published resources',
423: 'href' => '/res/fhwfdev/?launch=1',
424: });
425: $r->print(&Apache::loncommon::start_page('Browse published resources',$js,
426: {'domain' => $headerdom,})
427: .&Apache::lonhtmlcommon::breadcrumbs()
428: );
429: }
430:
431: # ---------------------------------- get state of file types to be showing
432: if ($env{'form.only'}) {
433: $typeselect = $env{'form.only'};
434: } else {
435: $typeselect = '';
436: }
437:
438: # ---------------------------------- get state of file attributes to be showing
439: if ($env{'form.attrs'}) {
440: for (my $i=0; $i<=16; $i++) {
441: delete $hash{'display_attrs_'.$i};
442: if ($env{'form.attr'.$i} == 1) {
443: $attrchk[$i] = 'checked';
444: $hash{'display_attrs_'.$i} = 1;
445: }
446: }
447: } else {
448: for (my $i=0; $i<=16; $i++) {
449: $attrchk[$i] = 'checked="checked"' if $hash{'display_attrs_'.$i} == 1;
450: }
451: }
452:
453: my @file_categories = &Apache::loncommon::filecategories();
454: my %select_file_categories;
455: my @select_form_order = ('');
456: $select_file_categories{''} = &mt('All file types');
457: foreach my $cat (@file_categories) {
458: my $types = join(",",&Apache::loncommon::filecategorytypes($cat));
459: $select_file_categories{$types} = &mt($cat);
460: push(@select_form_order,$types);
461: }
462: $select_file_categories{'select_form_order'} = \@select_form_order;
463: my $type_element=
464: &Apache::loncommon::select_form(
465: $typeselect,
466: 'only',
467: %select_file_categories);
468: my $type_selector = '<label>'.&mt('File Type Displayed: [_1]',
469: $type_element).'</label>';
470:
471: # ------------------------------- output state of file attributes to be showing
472: # All versions has to the last item
473: # since it does not take an extra col
474: my %lt=&Apache::lonlocal::texthash(
475: 'av' => 'All versions',
476: 'ud' => 'Update Display',
477: 'pr' => 'Problems',
478: 'gr' => 'Graphics',
479: 'at' => 'All types',
480: 'hd' => 'Display Options'
481: );
482: my @disp_order = ('0','4','5','6','13','1','2','3','10','14','8','11','7','12','15','16');
483: my %disp_options = &Apache::lonlocal::texthash (
484: 0 => 'Title',
485: 4 => 'Author',
486: 5 => 'Keywords',
487: 6 => 'Language',
488: 13 => 'Notes',
489: 1 => 'Size',
490: 2 => 'Last access',
491: 3 => 'Last modified',
492: 10 => 'Source Available',
493: 14 => 'Abstract',
494: 8 => 'Statistics',
495: 11 => 'Linked/Related Resources',
496: 7 => 'Show resource',
497: 12 => 'Subject',
498: 15 => 'Grade Level',
499: 16 => 'Standards',
500: );
501: my $cell = 0;
502: my $numinrow = 4;
503: $r->print('
504: <form method="post" name="fileattr" action="'.$uri.'" enctype="application/x-www-form-urlencoded">
505: <fieldset>
506: <legend>'.$lt{'hd'}.'</legend>
507: <table style=" border-collapse: collapse; border-style: none;">'."\n");
508: foreach my $item (@disp_order) {
509: my $style = 'padding-left: 12px; padding-right: 8px;';
510: if ($cell%$numinrow == 0) {
511: $r->print('<tr>');
512: }
513: $cell ++;
514: if ($cell > 3 * $numinrow) {
515: $style .= ' padding-bottom: 6px;';
516: }
517: if (defined($disp_options{$item})) {
518: $r->print('<td style="'.$style.'"><span class="LC_nobreak">'.
519: '<label><input type="checkbox" name="attr'.$item.'" value="1" '.
520: $attrchk[$item].' onclick="this.form.submit();" /> '.$disp_options{$item}.
521: '</label></span></td>'."\n");
522: }
523: if ($cell > 1 && $cell%$numinrow == 0) {
524: $r->print('</tr>');
525: }
526: }
527: $r->print(<<END);
528: <tr>
529: <td style="font-style: italic; border-top: 1px solid black; padding-top: 6px">
530: <label><input type="checkbox" name="attr9" value="1" $attrchk[9] onclick="this.form.submit();" /> $lt{'av'}</label>
531: </td>
532: <td colspan="3" style="padding-left:8px; padding-top: 4px; font-style: italic; border-top: 1px solid black; padding-top: 8px">$type_selector</td>
533: </tr>
534: </table>
535: <input type="hidden" name="attrs" value="1" />
536: </fieldset>
537: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
538: <input type="hidden" name="acts" value="" />
539: $closebutton $groupimportbutton
540: END
541: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
542:
543: # -------------- Filter out sequence containment in crumbs and "recent folders"
544: my $storeuri=$uri;
545: $storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
546: $storeuri=~s/\/+/\//g;
547: # ---------------------------------------------------------------- Bread crumbs
548: $r->print(
549: '<p>'
550: .&Apache::lonhtmlcommon::crumbs(
551: $storeuri,
552: '',
553: '',
554: (($env{'form.catalogmode'} eq 'import')?
555: 'document.forms.fileattr':''))
556: .'<br />'
557: .&Apache::lonhtmlcommon::select_recent(
558: 'residx',
559: 'resrecent',
560: '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();')
561: .'</p>'
562: );
563: # -------------------------------------------------------- Resource Home Button
564: my $reshome=$env{'course.'.$env{'request.course.id'}.'.reshome'};
565: if ($reshome) {
566: $r->print("<span class=\"LC_fontsize_large\"><a href='");
567: if ($env{'form.catalogmode'} eq 'import') {
568: $r->print('javascript:document.forms.fileattr.action="'.&Apache::loncommon::inhibit_menu_check($reshome).'";document.forms.fileattr.submit();');
569: } else {
570: $r->print($reshome);
571: }
572: $r->print("'>".&mt('Home').'</a></span>');
573: }
574: $r->print('</form>');
575: # ------------------------------------------------------ Remember where we were
576: &Apache::loncommon::storeresurl($storeuri);
577: &Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
578: # -------------------------------------------------- Check All and Uncheck all
579: if ($env{'form.catalogmode'} eq 'import') {
580: $r->print('<p><input type="button" value="'.&mt("Check All").'" id="checkallbutton" onclick="javascript:checkAll()" />');
581: $r->print('<input type="button" value="'.&mt("Uncheck All").'" id="uncheckallbutton" onclick="javascript:uncheckAll()" /></p>');
582: }
583: # ----------------- output starting row to the indexed file/directory hierarchy
584: #$r->print(&initdebug());
585: #$r->print(&writedebug("Omit:@Omit")) if (@Omit);
586: #$r->print(&writedebug("Only:@Only")) if (@Only);
587: $r->print(&Apache::loncommon::start_data_table("LC_tableBrowseRes")
588: .&Apache::loncommon::start_data_table_header_row());
589: $r->print("<th $colspan>".&mt('Name')."</th>\n");
590: $r->print("<th>".&mt('Title')."</th>\n")
591: if ($hash{'display_attrs_0'} == 1);
592: $r->print('<th class="LC_right">'.&mt("Size")." (".&mt("bytes").") ".
593: "</th>\n") if ($hash{'display_attrs_1'} == 1);
594: $r->print("<th>".&mt("Last accessed")."</th>\n")
595: if ($hash{'display_attrs_2'} == 1);
596: $r->print("<th>".&mt("Last modified")."</th>\n")
597: if ($hash{'display_attrs_3'} == 1);
598: $r->print("<th>".&mt("Author(s)")."</th>\n")
599: if ($hash{'display_attrs_4'} == 1);
600: $r->print("<th>".&mt("Keywords")."</th>\n")
601: if ($hash{'display_attrs_5'} == 1);
602: $r->print("<th>".&mt("Language")."</th>\n")
603: if ($hash{'display_attrs_6'} == 1);
604: $r->print("<th>".&mt("Usage Statistics")." <br />(".
605: &mt("Courses/Network Hits").") ".&mt('updated periodically')."</th>\n")
606: if ($hash{'display_attrs_8'} == 1);
607: $r->print("<th>".&mt("Source Available")."</th>\n")
608: if ($hash{'display_attrs_10'} == 1);
609: $r->print("<th>".&mt("Linked/Related Resources")."</th>\n")
610: if ($hash{'display_attrs_11'} == 1);
611: $r->print("<th>".&mt("Resource")."</th>\n")
612: if ($hash{'display_attrs_7'} == 1);
613: $r->print("<th>".&mt("Subject")."</th>\n")
614: if ($hash{'display_attrs_12'} == 1);
615: $r->print("<th>".&mt("Notes")."</th>\n")
616: if ($hash{'display_attrs_13'} == 1);
617: $r->print("<th>".&mt("Abstract")."</th>\n")
618: if ($hash{'display_attrs_14'} == 1);
619: $r->print("<th>".&mt("Grade Level")."</th>\n")
620: if ($hash{'display_attrs_15'} == 1);
621: $r->print("<th>".&mt("Standards")."</th>\n")
622: if ($hash{'display_attrs_16'} == 1);
623:
624: $r->print(&Apache::loncommon::end_data_table_header_row());
625:
626:
627:
628: # ----------------- read in what directories have previously been set to "open"
629: foreach (keys %hash) {
630: if ($_ =~ /^diropen_status_/) {
631: my $key = $_;
632: $key =~ s/^diropen_status_//;
633: $dirs{$key} = $hash{$_};
634: }
635: }
636:
637: if ($env{'form.openuri'}) { # take care of review and refresh options
638: my $uri=$env{'form.openuri'};
639: if (exists($hash{'diropen_status_'.$uri})) {
640: my $cursta = $hash{'diropen_status_'.$uri};
641: $dirs{$uri} = 'open';
642: $hash{'diropen_status_'.$uri} = 'open';
643: if ($cursta eq 'open') {
644: $dirs{$uri} = 'closed';
645: $hash{'diropen_status_'.$uri} = 'closed';
646: }
647: } else {
648: $hash{'diropen_status_'.$uri} = 'open';
649: $dirs{$uri} = 'open';
650: }
651: }
652:
653: my $toplevel;
654: my $indent = 0;
655: $uri = $uri.'/' if $uri !~ /.*\/$/;
656:
657: if ($env{'form.dirPointer'} ne 'on') {
658: $hash{'top.level'} = $uri;
659: $toplevel = $uri;
660: } else {
661: $toplevel = $hash{'top.level'};
662: }
663:
664: # -------------------------------- if not at top level, provide an uplink arrow
665: if ($toplevel ne '/res/'){
666: my (@uri_com) = split(/\//,$uri);
667: pop @uri_com;
668: my $upone = join('/',@uri_com);
669: my @list = qw (0);
670: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
671: $indent = 1;
672: }
673:
674: # -------- recursively go through all the directories and output as appropriate
675: &scanDir ($r,$toplevel,$indent,\%hash);
676:
677: # -------------------------------------------------------------- end the tables
678: $r->print(&Apache::loncommon::end_data_table());
679:
680: # ---------------------------- embed hidden information useful for group import
681: $r->print("<form name='fnum' action=''>");
682: $r->print("<input type='hidden' name='fnum' value='$fnum' /></form>");
683:
684: # --------------------------------------------------- end the output and return
685: $r->print(&Apache::loncommon::end_page()."\n");
686: }
687: if(! $c->aborted()) {
688: # write back into the temporary file
689: my %dbfile;
690: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
691: while (my($key,$value) = each(%hash)) {
692: $dbfile{$key}=$value;
693: }
694: untie(%dbfile);
695: }
696: }
697:
698: return OK;
699: }
700:
701: # ----------------------------------------------- recursive scan of a directory
702: sub scanDir {
703: my ($r,$startdir,$indent,$hashref)=@_;
704: my $c = $r->connection();
705: my ($compuri,$curdir);
706: my $dirptr=16384;
707: my $obs;
708: $indent++;
709: my %dupdirs = %dirs;
710: my @list=&get_list($r,$startdir);
711: foreach my $line (@list) {
712: return if ($c->aborted());
713: #This is a kludge, sorry aboot this
714: my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
715: next if($strip =~ /.*\.meta$/ | $obs eq '1');
716: my (@fileparts) = split(/\./,$strip);
717: if ($hash{'display_attrs_9'} != 1) {
718: # if not all versions to be shown
719: if (scalar(@fileparts) >= 3) {
720: my $fext = pop @fileparts;
721: my $ov = pop @fileparts;
722: my $fname = join ('.',@fileparts,$fext);
723: next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
724: }
725: }
726:
727: if ($dom eq 'domain') {
728: # dom list has full path /res/<domain name>/ already
729: $curdir='';
730: $compuri = (split(/\&/,$line))[0];
731: } else {
732: # user, dir & file have name only, i.e., w/o path
733: $compuri = join('',$startdir,$strip,'/');
734: $curdir = $startdir;
735: }
736: my $diropen = 'closed';
737: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
738: while (my ($key,$val)= each %dupdirs) {
739: if ($key eq $compuri and $val eq "open") {
740: $diropen = "opened";
741: delete($dupdirs{$key});
742: delete($dirs{$key});
743: }
744: }
745: }
746: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
747: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
748: }
749: $indent--;
750: }
751:
752: # --------------- get complete matched list based on the uri (returns an array)
753: sub get_list {
754: my ($r,$uri)=@_;
755: my @list=();
756: (my $luri = $uri) =~ s/\//_/g;
757: if ($env{'form.updatedisplay'}) {
758: foreach (keys %hash) {
759: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
760: delete $hash{$_} if ($_ =~ /^dirlist_timestamp_files_/);
761: }
762: }
763:
764: if (defined($hash{'dirlist_files_'.$luri}) &&
765: $hash{'dirlist_timestamp_files_'.$luri}+600 > (time)) {
766: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
767: } elsif ($uri=~/\.(page|sequence)\/$/) {
768: # is a page or a sequence
769: $uri=~s/\/$//;
770: $uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
771: $uri=~s/\/+/\//g;
772: foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
773: my @ratpart=split(/\:/,$_);
774: push(@list,&LONCAPA::map::qtescape($ratpart[1]));
775: }
776: $hash{'dirlist_files_'.$luri} = join("\n",@list);
777: } else {
778: # is really a directory
779: @list = &Apache::lonnet::dirlist($uri);
780: $hash{'dirlist_files_'.$luri} = join("\n",@list);
781: $hash{'dirlist_timestamp_files_'.$luri} = time;
782: }
783: return @list=&match_ext($r,@list);
784: }
785:
786: sub dynmetaread {
787: my $uri=shift;
788: if (($hash{'display_attrs_8'}==1) || ($hash{'display_attrs_11'}==1)) {
789: # We don't want the filename
790: $uri=~s/\/[^\/]+$//;
791: # Did we already see this?
792: my $builddir=$uri;
793: while ($builddir) {
794: if ($dynread{$builddir}) {
795: return 0;
796: }
797: $builddir=~s/\/[^\/]+$//;
798: }
799: # Actually get the data
800: %dynhash=
801: (%dynhash,&Apache::lonmeta::get_dynamic_metadata_from_sql($uri.'/'));
802: # Remember that we got it
803: $dynread{$uri}=1;
804: }
805: }
806:
807: sub initdebug {
808: my $start_page=
809: &Apache::loncommon::start_page('Debug',undef,
810: {'only_body' => 1,});
811: $start_page =~ s/\n/ /g;
812: return <<ENDJS;
813: <script type="text/javascript">
814: var debugging = true;
815: if (debugging) {
816: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
817: }
818:
819: function output(text) {
820: if (debugging) {
821: debuggingWindow.document.writeln(text);
822: }
823: }
824: output('$start_page<pre>');
825: </script>
826: ENDJS
827: }
828:
829: sub writedebug {
830: my ($text) = @_;
831: return "<script type=\"text/javascript\">output('$text');</script>";
832: }
833:
834: # -------------------- filters out files based on extensions (returns an array)
835: sub match_ext {
836: my ($r,@packlist)=@_;
837: my @trimlist;
838: my $nextline;
839: my @fileext;
840: my $dirptr=16384;
841:
842: foreach my $line (@packlist) {
843: chomp $line;
844: $line =~ s/^\/home\/httpd\/html//;
845: my @unpackline = split (/\&/,$line);
846: next if ($unpackline[0] eq '.');
847: next if ($unpackline[0] eq '..');
848: my @filecom = split (/\./,$unpackline[0]);
849: my $fext = pop(@filecom);
850: my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
851: if ($fnptr == 0 and $unpackline[3] ne "") {
852: my $embstyle = &Apache::loncommon::fileembstyle($fext);
853: push @trimlist,$line if (defined($embstyle) &&
854: ($embstyle ne 'hdn' or $fext eq 'meta'));
855: } else {
856: push @trimlist,$line;
857: }
858: }
859: @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
860: return @trimlist;
861: }
862:
863: # ------------------------------- displays one line in appropriate table format
864: sub display_line {
865: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
866: my (@pathfn, $fndir);
867: # there could be relative paths (files actually belonging into this directory)
868: # or absolute paths (for example, from sequences)
869: my $absolute;
870: my $pathprefix;
871: if ($line=~m|^/res/| && $startdir ne '') {
872: $absolute=1;
873: $pathprefix='';
874: } else {
875: $absolute=0;
876: $pathprefix=$startdir;
877: }
878: my $dirptr=16384;
879: #SB my $fileclr="#ffffe6";
880: my $iconpath= $r->dir_config('lonIconsURL') . '/';
881:
882: my @filecom = split (/\&/,$line);
883: my @pathcom = split (/\//,$filecom[0]);
884: my $listname = $pathcom[scalar(@pathcom)-1];
885: my $fnptr = $filecom[3]&$dirptr;
886: my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
887: $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
888: my $nowOpen = ($diropen eq 'opened' ? 1 : 0);
889:
890: my $tabtag='</td>';
891: my $i=0;
892: while ($i<=16) {
893: $tabtag=join('',$tabtag,"<td> </td>")
894: if ($i != 9 &&
895: $hash{'display_attrs_'.$i} == 1);
896: $i++;
897: }
898: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
899:
900: # display uplink arrow
901: if ($filecom[1] eq 'viewOneUp') {
902: my $updir=$startdir;
903: # -------------- Filter out sequence containment in crumbs and "recent folders"
904: $updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
905: $updir=~s/\/+/\//g;
906:
907: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
908: $r->print(&Apache::loncommon::start_data_table_row()); # valign="$valign" ?!?
909: $r->print($extrafield);
910: $r->print("<td>\n");
911: $r->print ('<form method="post" name="dirpathUP" action="'.$updir.
912: '/" '.
913: 'onsubmit="return rep_dirpath(\'UP\','.
914: 'document.forms.fileattr.acts.value)" '.
915: 'enctype="application/x-www-form-urlencoded"'.
916: '>'."\n");
917: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
918: $r->print ('<input type="hidden" name="openuri" value="'.
919: $startdir.'" />'."\n");
920: $r->print ('<input type="hidden" name="acts" value="" />'."\n");
921: $r->print ('<a href="#" onclick="document.dirpathUP.submit()"><img src="'.$iconpath.'arrow.up.gif"');
922: $r->print (' alt="'.$msg.'" class="LC_fileicon" />'.
923: "\n");
924: $r->print(&mt("Up")."</a></form>$tabtag");
925: $r->print(&Apache::loncommon::end_data_table_row());
926: return OK;
927: }
928: # Do we have permission to look at this?
929: if($filecom[15] ne '1') { return OK if ((!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])) && (!&Apache::lonnet::allowed('bro',$pathprefix.$filecom[0]))); }
930:
931: # make absolute links appear on different background
932: #SB if ($absolute) { $fileclr='#ccdd99'; }
933:
934: # display domain
935: if ($filecom[1] eq 'domain') {
936: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n")
937: if ($env{'form.dirPointer'} eq "on");
938: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
939: $r->print(&Apache::loncommon::start_data_table_row()); # valign="$valign" ?!?"
940: $r->print($extrafield);
941: $r->print("<td>");
942: &begin_form ($r,$filecom[0]);
943: my $anchor = $filecom[0];
944: $anchor =~ s/\W//g;
945: $r->print ('<a name="'.$anchor.'"></a>');
946: $r->print ('<input type="hidden" name="acts" value="" />');
947: $r->print ('<a href="#" onclick="document.dirpath'.($dnum-1).'.submit()"><img src="'.$iconpath.'arrow.'.($nowOpen ? "open" : "closed" ).'.gif"');
948: $r->print (' alt="'.$msg.'" class="LC_fileicon" /></a>'.
949: "\n");
950: my $quotable_filecom = &Apache::loncommon::escape_single($filecom[0]);
951: $r->print ('<a href="javascript:gothere(\''.$quotable_filecom.
952: '\')"><img alt="" src="'.$iconpath.'server.gif"');
953: $r->print (' class="LC_fileicon" />'."\n");
954: $r->print (&mt("Domain")." - $listname </a>");
955: if (&Apache::lonnet::domain($listname,'description')) {
956: $r->print("<br />(".&Apache::lonnet::domain($listname,'description').
957: ")");
958: }
959: $r->print("</form>$tabtag");
960: $r->print(&Apache::loncommon::end_data_table_row());
961: return OK;
962:
963: # display user directory
964: }
965: if ($filecom[1] eq 'user') {
966: # $r->print("<tr valign=$valign bgcolor=\"$fileclr\">$extrafield");
967: my $curdir = $startdir.$filecom[0].'/';
968: my $anchor = $curdir;
969: $anchor =~ s/\W//g;
970: #SB $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
971: $r->print(&Apache::loncommon::start_data_table_row()
972: .$extrafield.'<td class="LC_'.$valign.'">');
973: &begin_form ($r,$curdir);
974: $r->print ('<a name="'.$anchor.'"></a><img alt="" src="'.$iconpath.
975: 'whitespace_21.gif" class="LC_icon" />'."\n");
976: $r->print ('<input type="hidden" name="acts" value="" />');
977: $r->print ('<a href="#" onclick="document.dirpath'.($dnum-1).'.submit()">');
978: $r->print ('<img src="'.$iconpath.'arrow.'.($nowOpen ? "open" : "closed" ).
979: '.gif" class="LC_fileicon"');
980: $r->print (' alt="'.$msg.'"/></a>'.
981: "\n");
982: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
983: $r->print ('<a href="javascript:gothere(\''.$quotable_curdir
984: .'\')"><img alt="'.$msg.'" src="'.
985: $iconpath.'quill.gif" class="LC_fileicon" />');
986: my $domain=(split(m|/|,$startdir))[2];
987: my $plainname=&Apache::loncommon::plainname($listname,$domain);
988: $r->print ($listname.'</a>');
989:
990: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
991: $r->print('</form>'.$tabtag);
992: $r->print(&Apache::loncommon::end_data_table_row());
993: return OK;
994: }
995:
996: # display file
997: if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
998: my $title;
999: my $filelink = $pathprefix.$filecom[0];
1000: if ($hash{'display_attrs_0'} == 1) {
1001: $title = &Apache::lonnet::gettitle($filelink);
1002: }
1003: my @file_ext = split (/\./,$listname);
1004: my $curfext = $file_ext[-1];
1005: if (@Omit) {
1006: foreach (@Omit) { return OK if (lc($curfext) eq $_); }
1007: }
1008: if (@Only) {
1009: my $skip = 1;
1010: foreach (@Only) { $skip = 0 if (lc($curfext) eq $_); }
1011: return OK if ($skip > 0);
1012: }
1013: # Set the icon for the file
1014: my $iconname = &Apache::loncommon::icon($listname);
1015: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">);
1016: $r->print(&Apache::loncommon::start_data_table_row()); #SB valign="$valign" ?!?
1017: $r->print('<td class="LC_middle LC_nobreak">');
1018:
1019: if ($env{'form.catalogmode'} eq 'interactive') {
1020: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
1021: $r->print("<a href=\"javascript:select_data(\'",
1022: $quotable_filelink,"')\">");
1023: $r->print("<img alt=\"\" src='",$iconpath,"select.gif' class='LC_icon' /></a>".
1024: "\n");
1025: $r->print('</td><td class="LC_middle">');
1026: } elsif ($env{'form.catalogmode'} eq 'import') {
1027: $r->print("<form name='form$fnum' action=''>\n");
1028: $r->print("<input type='checkbox' name='filelink"."' ".
1029: "value='$filelink' onclick='".
1030: "javascript:queue(\"form$fnum\")' ");
1031: if ($hash{'store_'.$filelink}) {
1032: $r->print("checked");
1033: }
1034: $r->print(" />\n");
1035: $r->print('</form></td><td class="LC_middle">');
1036: $hash{"pre_${fnum}_link"}=$filelink;
1037: $hash{"pre_${fnum}_title"}=$title;
1038: if (!$hash{"pre_${fnum}_title"}) {
1039: $hash{"pre_${fnum}_title"} = 'Not_retrieved';
1040: }
1041: $fnum++;
1042: }
1043: # Form to open or close sequences
1044: if ($filelink=~/\.(page|sequence)$/) {
1045: my $curdir = $startdir.$filecom[0].'/';
1046: &begin_form($r,$curdir);
1047: $indent--;
1048: }
1049: # General indentation
1050: my $count = 0;
1051: while ($count < $indent) {
1052: $r->print('<img alt="" src="'.$iconpath.'whitespace_21.gif"
1053: class="LC_icon" />');
1054: $count++;
1055: }
1056: # Sequence open/close icon
1057: if ($filelink=~/\.(page|sequence)$/) {
1058: my $curdir = $startdir.$filecom[0].'/';
1059: my $anchor = $curdir;
1060: $anchor =~ s/\W//g;
1061: $r->print ('<input type="hidden" name="acts" value="" />');
1062: $r->print ('<a name="'.$anchor.'"></a>');
1063: $r->print ('<a href="#" onclick="document.dirpath'.($dnum-1).'.submit()">');
1064: $r->print ('<img src="'.$iconpath.'arrow.'.($nowOpen ? "open" : "closed" ).
1065: '.gif" class="LC_fileicon"');
1066: $r->print (' alt="'.$msg.'" /></a>'.
1067: "\n");
1068: }
1069: # Filetype icons
1070: $r->print("<img alt=\"\" src='$iconname' class='LC_fileicon' />\n");
1071: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
1072:
1073: $r->print (" <a href=\"javascript:openWindow('".$quotable_filelink.
1074: "?inhibitmenu=yes','previewfile','450','500','no','yes','yes');\"".
1075: " target=\"_self\">$listname</a> ");
1076: $quotable_filelink = &Apache::loncommon::escape_single($filelink.'.meta');
1077: &Apache::loncommon::inhibit_menu_check(\$quotable_filelink);
1078: $r->print (" (<a href=\"javascript:openWindow('".$quotable_filelink.
1079: "?inhibitmenu=yes','metadatafile','500','550','no','yes','no');\" ".
1080: " target=\"_self\">".&mt('metadata')."</a>) ");
1081: # Close form to open/close sequence
1082: if ($filelink=~/\.(page|sequence)$/) {
1083: $r->print('</form>');
1084: }
1085: $r->print("</td>\n");
1086: if ($hash{'display_attrs_0'} == 1) {
1087: $r->print('<td> '.($title eq '' ? ' ' : $title).
1088: ' </td>'."\n");
1089: }
1090: $r->print('<td class="LC_right"> ',
1091: $filecom[8]," </td>\n")
1092: if $hash{'display_attrs_1'} == 1;
1093: $r->print('<td class="LC_nobreak"> '.
1094: (&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
1095: if $hash{'display_attrs_2'} == 1;
1096: $r->print('<td class="LC_nobreak"> '.
1097: (&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
1098: if $hash{'display_attrs_3'} == 1;
1099:
1100: if ($hash{'display_attrs_4'} == 1) {
1101: my $author = &Apache::lonnet::metadata($filelink,'author');
1102: $r->print('<td class="LC_nobreak"> '.($author eq '' ? ' ' : $author).
1103: " </td>\n");
1104: }
1105: if ($hash{'display_attrs_5'} == 1) {
1106: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1107: # $keywords = ' ' if (!$keywords);
1108: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1109: " </td>\n");
1110: }
1111:
1112: if ($hash{'display_attrs_6'} == 1) {
1113: my $lang = &Apache::lonnet::metadata($filelink,'language');
1114: $lang = &Apache::loncommon::languagedescription($lang);
1115: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1116: " </td>\n");
1117: }
1118: if ($hash{'display_attrs_8'} == 1) {
1119: # statistics
1120: &dynmetaread($filelink);
1121: $r->print("<td>");
1122:
1123: for (qw(count course stdno avetries difficulty disc clear technical
1124: correct helpful depth)) {
1125:
1126: dynmetaprint($r,$filelink,$_);
1127: }
1128:
1129: $r->print(" </td>\n");
1130:
1131: }
1132: if ($hash{'display_attrs_10'} == 1) {
1133: my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
1134: if($source eq 'open') {
1135: my $sourcelink = &Apache::lonsource::make_link($filelink,$listname);
1136: my $quotable_sourcelink = &Apache::loncommon::escape_single($sourcelink);
1137: &Apache::loncommon::inhibit_menu_check(\$quotable_sourcelink);
1138: $r->print('<td>'."<a href=\"javascript:openWindow('"
1139: .$quotable_sourcelink.
1140: "', 'previewsource', '700', '700', 'no', 'yes','yes');\"".
1141: " target=\"_self\">".&mt('Source Code')."</a> "."</td>\n");
1142: } else { #A cuddled else. :P
1143: $r->print("<td> </td>\n");
1144: }
1145: }
1146: if ($hash{'display_attrs_11'} == 1) {
1147: # links
1148: &dynmetaread($filelink);
1149: $r->print('<td>');
1150: &coursecontext($r,$filelink);
1151: for (qw(goto_list comefrom_list sequsage_list dependencies course_list)) {
1152: dynmetaprint($r,$filelink,$_);
1153: }
1154: $r->print('</td>');
1155: }
1156:
1157:
1158:
1159: if ($hash{'display_attrs_7'} == 1) {
1160: # Show resource
1161: my $output=&showpreview($filelink);
1162: $r->print('<td class="LC_fontsize_medium">'.($output eq '' ? ' ':$output).
1163: " </td>\n");
1164: }
1165:
1166: if ($hash{'display_attrs_12'} == 1) {
1167: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1168: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1169: " </td>\n");
1170: }
1171:
1172: if ($hash{'display_attrs_13'} == 1) {
1173: my $notes = &Apache::lonnet::metadata($filelink,'notes');
1174: $r->print('<td> '.($notes eq '' ? ' ' : $notes).
1175: " </td>\n");
1176: }
1177:
1178: if ($hash{'display_attrs_14'} == 1) {
1179: my $abstract = &Apache::lonnet::metadata($filelink,'abstract');
1180: $r->print('<td> '.($abstract eq '' ? ' ' : $abstract).
1181: " </td>\n");
1182: }
1183:
1184: if ($hash{'display_attrs_15'} == 1) {
1185: my $gradelevel = &Apache::lonnet::metadata($filelink,'gradelevel');
1186: $r->print('<td> '.($gradelevel eq '' ? ' ' : $gradelevel).
1187: " </td>\n");
1188: }
1189:
1190: if ($hash{'display_attrs_16'} == 1) {
1191: my $standards = &Apache::lonnet::metadata($filelink,'standards');
1192: $r->print('<td> '.($standards eq '' ? ' ' : $standards).
1193: " </td>\n");
1194: }
1195:
1196: $r->print(&Apache::loncommon::end_data_table_row());
1197: }
1198:
1199:
1200:
1201: # -- display directory
1202: if ($fnptr == $dirptr) {
1203: my $curdir = $startdir.$filecom[0].'/';
1204: my $anchor = $curdir;
1205: $anchor =~ s/\W//g;
1206: #SB $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
1207: $r->print(&Apache::loncommon::start_data_table_row()); # SB: bgcolor suggestion: darkgrey ("LC_info_row"?!?)
1208: # $r->print('<tr class="LC_info_row">');
1209: $r->print($extrafield.'<td class="LC_middle LC_nobreak">');
1210: &begin_form ($r,$curdir);
1211: my $indentm1 = $indent-1;
1212: my $count = 0;
1213: while ($count < $indentm1) {
1214: $r->print ('<img alt="" src="',$iconpath
1215: ,'whitespace_21.gif" class="LC_icon" />');
1216: $count++;
1217: }
1218: $r->print ('<input type="hidden" name="acts" value="" />');
1219: $r->print ('<a name="'.$anchor.'"></a>');
1220: $r->print ('<a href="#" onclick="document.dirpath'.($dnum-1).'.submit()"><img src="'.$iconpath.
1221: 'arrow.'.($nowOpen ? "open" : "closed" ).'.gif"');
1222: $r->print (' alt="'.$msg.'" class="LC_fileicon" /></a>'.
1223: "\n");
1224: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
1225:
1226: my $location = &Apache::loncommon::lonhttpdurl("/adm/lonIcons");
1227: my $icon = "navmap.folder.".($nowOpen ? "open":"closed").'.gif';
1228: $r->print ('<a href="javascript:gothere('
1229: ."'$quotable_curdir'".');">'
1230: .'<img class="LC_fileicon" alt="'.&mt('Open Folder').'" src="'
1231: .$location.'/'.$icon.'" />'
1232: ."\n");
1233: $r->print ("$listname</a></form></td>\n");
1234: # Attributes
1235: my $filelink = $startdir.$filecom[0].'/default';
1236:
1237: if ($hash{'display_attrs_0'} == 1) {
1238: my $title = &Apache::lonnet::gettitle($filelink);
1239: $r->print('<td> '.($title eq '' ? ' ' : $title).
1240: ' </td>'."\n");
1241: }
1242: $r->print('<td class="LC_right"> ',
1243: $filecom[8]," </td>\n")
1244: if $hash{'display_attrs_1'} == 1;
1245: $r->print('<td class="LC_break"> '.
1246: (&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
1247: if $hash{'display_attrs_2'} == 1;
1248: $r->print('<td class="LC_break"> '.
1249: (&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
1250: if $hash{'display_attrs_3'} == 1;
1251:
1252: if ($hash{'display_attrs_4'} == 1) {
1253: my $author = &Apache::lonnet::metadata($filelink,'author');
1254: $r->print('<td> '.($author eq '' ? ' ' : $author).
1255: " </td>\n");
1256: }
1257: if ($hash{'display_attrs_5'} == 1) {
1258: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1259: # $keywords = ' ' if (!$keywords);
1260: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1261: " </td>\n");
1262: }
1263: if ($hash{'display_attrs_6'} == 1) {
1264: my $lang = &Apache::lonnet::metadata($filelink,'language');
1265: $lang = &Apache::loncommon::languagedescription($lang);
1266: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1267: " </td>\n");
1268: }
1269:
1270: if ($hash{'display_attrs_8'} == 1) {
1271: $r->print('<td> </td>');
1272: }
1273: if ($hash{'display_attrs_10'} == 1) {
1274: $r->print('<td> </td>');
1275: }
1276: if ($hash{'display_attrs_7'} == 1) {
1277: $r->print('<td> </td>');
1278: }
1279: if ($hash{'display_attrs_11'} == 1) {
1280: $r->print('<td> </td>');
1281: }
1282: if ($hash{'display_attrs_12'} == 1) {
1283: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1284: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1285: " </td>\n");
1286: }
1287: if ($hash{'display_attrs_13'} == 1) {
1288: my $notes = &Apache::lonnet::metadata($filelink,'notes');
1289: $r->print('<td> '.($notes eq '' ? ' ' : $notes).
1290: " </td>\n");
1291: }
1292:
1293: if ($hash{'display_attrs_14'} == 1) {
1294: my $abstract = &Apache::lonnet::metadata($filelink,'abstract');
1295: $r->print('<td> '.($abstract eq '' ? ' ' : $abstract).
1296: " </td>\n");
1297: }
1298:
1299: if ($hash{'display_attrs_15'} == 1) {
1300: my $gradelevel = &Apache::lonnet::metadata($filelink,'gradelevel');
1301: $r->print('<td> '.($gradelevel eq '' ? ' ' : $gradelevel).
1302: " </td>\n");
1303: }
1304:
1305: if ($hash{'display_attrs_16'} == 1) {
1306: my $standards = &Apache::lonnet::metadata($filelink,'standards');
1307: $r->print('<td> '.($standards eq '' ? ' ' : $standards).
1308: " </td>\n");
1309: }
1310:
1311:
1312: $r->print(&Apache::loncommon::end_data_table_row());
1313: }
1314:
1315: }
1316:
1317: sub coursecontext {
1318: my ($r,$filelink)=@_;
1319: my $filesymb=&Apache::lonnet::symbread($filelink);
1320: if ($filesymb) {
1321: my ($map,$index,$resource)=&Apache::lonnet::decode_symb($filesymb);
1322: $r->print(&mt('Already in this course:<br />[_1] in folder/map [_2].<br />',
1323: &Apache::lonnet::gettitle($resource),
1324: &Apache::lonnet::gettitle($map)));
1325: }
1326: }
1327:
1328: sub showpreview {
1329: my ($filelink)=@_;
1330: if ($filelink=~m-^(/ext/|http://)-) {
1331: return &mt('External Resource, preview not enabled');
1332: }
1333: my ($curfext)=($filelink=~/\.(\w+)$/);
1334: my $output='';
1335: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
1336: if ($embstyle eq 'ssi') {
1337: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
1338: '.tmp';
1339: if ((!$env{'form.updatedisplay'}) &&
1340: (-e $cache)) {
1341: open(FH,$cache);
1342: $output=join("\n",<FH>);
1343: close(FH);
1344: } else {
1345: # In update display mode, remove old cache. This is done to retroactively
1346: # clean up course context renderings.
1347: if (-e $cache) {
1348: unlink($cache);
1349: }
1350: $output=&Apache::lonnet::ssi_body($filelink);
1351: # Is access denied? Don't render, don't store
1352: if ($output=~/LONCAPAACCESSCONTROLERRORSCREEN/s) {
1353: $output='';
1354: # Was this rendered in course content? Don't store
1355: } elsif (!&Apache::lonnet::symbread($filelink)) {
1356: open(FH,">$cache");
1357: print FH $output;
1358: close(FH);
1359: }
1360: }
1361: } elsif ($embstyle eq 'img') {
1362: $output='<img alt="'.&mt('Preview').'" src="'.$filelink.'" />';
1363: } elsif ($filelink=~m{^/res/($match_domain)/($match_username)/}) {
1364: $output='<img alt="'.&mt('Preview').'" src="http://'.
1365: &Apache::lonnet::hostname(&Apache::lonnet::homeserver($2,$1)).
1366: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1367: }
1368: return $output;
1369: }
1370:
1371: sub dynmetaprint {
1372: my ($r,$filelink,$item)=@_;
1373: if ($dynhash{$filelink}->{$item}) {
1374: $r->print("\n<br />".$fieldnames{$item}.': '.
1375: &Apache::lonmeta::prettyprint($item,
1376: $dynhash{$filelink}->{$item},
1377: (($env{'form.catalogmode'} ne 'import')?'preview':''),
1378: '',
1379: (($env{'form.catalogmode'} eq 'import')?'document.forms.fileattr':''),1));
1380: }
1381: }
1382:
1383: # ------------------- prints the beginning of a form for directory or file link
1384: sub begin_form {
1385: my ($r,$uri) = @_;
1386: my $anchor = $uri;
1387: $anchor =~ s/\W//g;
1388: $uri=&Apache::loncommon::escape_single($uri);
1389: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1390: '#'.$anchor.
1391: '" onsubmit="return rep_dirpath(\''.$dnum.'\''.
1392: ',document.forms.fileattr.acts.value)" '.
1393: 'enctype="application/x-www-form-urlencoded">'."\n");
1394: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'" />'.
1395: "\n");
1396: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n");
1397: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
1398: $dnum++;
1399: }
1400:
1401: # --------- settings whenever the user causes the indexer window to be launched
1402: sub start_fresh_session {
1403: my ($hash) = @_;
1404: delete $hash->{'form.catalogmode'};
1405: delete $hash->{'form.mode'};
1406: delete $hash->{'form.form'};
1407: delete $hash->{'form.element'};
1408: delete $hash->{'form.omit'};
1409: delete $hash->{'form.only'};
1410: foreach (keys %{$hash}) {
1411: delete $hash->{$_} if (/^(pre_|store)/);
1412: }
1413: }
1414:
1415: # ------------------------------------------------------------------- setvalues
1416: sub setvalues {
1417: # setvalues is used in registerurl to synchronize the database
1418: # hash and environment hashes
1419: my ($H1,$h1key,$H2,$h2key) =@_;
1420: #
1421: if (exists $H2->{$h2key}) {
1422: $H1->{$h1key} = $H2->{$h2key};
1423: } elsif (exists $H1->{$h1key}) {
1424: $H2->{$h2key} = $H1->{$h1key};
1425: }
1426: }
1427:
1428: 1;
1429:
1430: sub cleanup {
1431: if (tied(%hash)){
1432: &Apache::lonnet::logthis('Cleanup indexer: hash');
1433: }
1434: return OK;
1435: }
1436:
1437:
1438:
1439:
1440:
1441: =head1 NAME
1442:
1443: Apache::lonindexer - mod_perl module for cross server filesystem browsing
1444:
1445: =head1 SYNOPSIS
1446:
1447: Invoked by /etc/httpd/conf/srm.conf:
1448:
1449: <LocationMatch "^/res.*/$">
1450: SetHandler perl-script
1451: PerlHandler Apache::lonindexer
1452: </LocationMatch>
1453:
1454: =head1 INTRODUCTION
1455:
1456: This module enables a scheme of browsing across a cross server.
1457:
1458: This is part of the LearningOnline Network with CAPA project
1459: described at http://www.lon-capa.org.
1460:
1461: =head1 BEGIN SUBROUTINE
1462:
1463: This routine is only run once after compilation.
1464:
1465: =over 4
1466:
1467: =item *
1468:
1469: Initializes %language hash table.
1470:
1471: =back
1472:
1473: =head1 HANDLER SUBROUTINE
1474:
1475: This routine is called by Apache and mod_perl.
1476:
1477: =over 4
1478:
1479: =item *
1480:
1481: read in machine configuration variables
1482:
1483: =item *
1484:
1485: see if called from an interactive mode
1486:
1487: =item *
1488:
1489: refresh environment with user database values (in %hash)
1490:
1491: =item *
1492:
1493: define extra fields and buttons in case of special mode
1494:
1495: =item *
1496:
1497: set catalogmodefunctions to have extra needed javascript functionality
1498:
1499: =item *
1500:
1501: print header
1502:
1503: =item *
1504:
1505: evaluate actions from previous page (both cumulatively and chronologically)
1506:
1507: =item *
1508:
1509: output title
1510:
1511: =item *
1512:
1513: get state of file attributes to be showing
1514:
1515: =item *
1516:
1517: output state of file attributes to be showing
1518:
1519: =item *
1520:
1521: output starting row to the indexed file/directory hierarchy
1522:
1523: =item *
1524:
1525: read in what directories have previously been set to "open"
1526:
1527: =item *
1528:
1529: if not at top level, provide an uplink arrow
1530:
1531: =item *
1532:
1533: recursively go through all the directories and output as appropriate
1534:
1535: =item *
1536:
1537: information useful for group import
1538:
1539: =item *
1540:
1541: end the tables
1542:
1543: =item *
1544:
1545: end the output and return
1546:
1547: =back
1548:
1549: =head1 OTHER SUBROUTINES
1550:
1551: =over 4
1552:
1553: =item *
1554:
1555: scanDir - recursive scan of a directory
1556:
1557: =item *
1558:
1559: get_list - get complete matched list based on the uri (returns an array)
1560:
1561: =item *
1562:
1563: match_ext - filters out files based on extensions (returns an array)
1564:
1565: =item *
1566:
1567: display_line - displays one line in appropriate table format
1568:
1569: =item *
1570:
1571: begin_form - prints the beginning of a form for directory or file link
1572:
1573: =item *
1574:
1575: start_fresh_session - settings whenever the user causes the indexer window
1576: to be launched
1577:
1578: =back
1579:
1580: =cut
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