1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.213.4.1 2012/05/07 05:15:00 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 $diropendb = LONCAPA::tempdir() .
124: "$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_entries' =>
170: {'onload' => "load();"},}
171: ).
172: &Apache::loncommon::end_page());
173: return OK;
174: }
175:
176: # -------------------- refresh environment with user database values (in %hash)
177: &setvalues(\%hash,'form.catalogmode',\%env,'form.catalogmode' );
178:
179: # --------------------- define extra fields and buttons in case of special mode
180: if ($env{'form.catalogmode'} eq 'interactive') {
181: #SB $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
182: $extrafield='<td class="LC_bottom">'.
183: '<img alt="" src="'.$iconpath.'whitespace1.gif"'.
184: ' class="LC_icon" /></td>';
185: $colspan=" colspan='2' ";
186: my $cl=&mt('Close');
187: $closebutton=<<END;
188: <input type="button" name="close" value='$cl' onclick="self.close()" />
189: END
190: }
191: elsif ($env{'form.catalogmode'} eq 'import') {
192: #SB $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
193: $extrafield='<td class="LC_bottom">'.
194: '<img alt="" src="'.$iconpath.'whitespace1.gif"'.
195: ' class="LC_icon" /></td>';
196: $colspan=" colspan='2' ";
197: my $cl=&mt('Close');
198: my $gi=&mt('Import');
199: $closebutton=<<END;
200: <input type="button" name="close" value='$cl' onclick="self.close()" />
201: END
202: $groupimportbutton=<<END;
203: <input type="button" name="groupimport" value='$gi'
204: onclick="javascript:select_group()" />
205: END
206: }
207: # Additions made by Matthew to make the browser a little easier to deal
208: # with in the future.
209: #
210: # $mode (at this time) indicates if we are in edit mode.
211: # $form is the name of the form that the URL is placed when the
212: # selection is made.
213: # $element is the name of the element in $formname which receives
214: # the URL.
215: #&Apache::lonxml::debug('Checking mode, form, element');
216: &setvalues(\%hash,'form.mode' ,\%env,'form.mode' );
217: &setvalues(\%hash,'form.form' ,\%env,'form.form' );
218: &setvalues(\%hash,'form.element' ,\%env,'form.element');
219: &setvalues(\%hash,'form.titleelement',\%env,'form.titleelement');
220: &setvalues(\%hash,'form.only' ,\%env,'form.only' );
221: &setvalues(\%hash,'form.omit' ,\%env,'form.omit' );
222:
223: # Deal with 'omit' and 'only'
224: if (exists $env{'form.omit'}) {
225: @Omit = split(',',$env{'form.omit'});
226: }
227: if (exists $env{'form.only'}) {
228: @Only = split(',',$env{'form.only'});
229: }
230:
231: my $mode = $env{'form.mode'};
232: my ($form,$element,$titleelement);
233: if ($mode eq 'edit' || $mode eq 'parmset') {
234: $form = $env{'form.form'};
235: $element = $env{'form.element'};
236: $titleelement = $env{'form.titleelement'};
237: }
238: #&Apache::lonxml::debug("mode=$mode form=$form element=$element titleelement=$titleelement");
239: # ------ set catalogmodefunctions to have extra needed javascript functionality
240: my $catalogmodefunctions='';
241: if ($env{'form.catalogmode'} eq 'interactive' or
242: $env{'form.catalogmode'} eq 'import') {
243: # The if statement below sets us up to use the old version
244: # by default (ie. if $mode is undefined). This is the easy
245: # way out. Hopefully in the future I'll find a way to get
246: # the calls dealt with in a more comprehensive manner.
247:
248: #
249: # There is now also mode "simple", which is for the simple version of the rat
250: #
251: #
252: if (!defined($mode) || ($mode ne 'edit' && $mode ne 'parmset')) {
253: my $location = "/adm/groupsort?&inhibitmenu=yes&catalogmode=import&";
254: $location .= "mode=".$mode."&";
255: $location .= "acts=";
256: $catalogmodefunctions=<<"END";
257: function select_data(url) {
258: changeURL(url);
259: self.close();
260: }
261: function select_group() {
262: window.location="$location"+document.forms.fileattr.acts.value;
263: }
264: function changeURL(val) {
265: if (opener.inf) {
266: if (opener.inf.document.forms.resinfo.elements.u) {
267: opener.inf.document.forms.resinfo.elements.u.value=val;
268: }
269: }
270: }
271: END
272: } elsif ($mode eq 'edit') { # we are in 'edit' mode
273: my $location = "/adm/groupsort?catalogmode=interactive&";
274: $location .= "form=$form&element=$element&mode=edit&acts=";
275: $catalogmodefunctions=<<END;
276: // mode = $mode
277: function select_data(url) {
278: var location = "/res/?launch=2&form=$form&element=$element&titleelement=$titleelement&acts=" + url;
279: window.location=location;
280: if (window.opener.document.forms["$form"].elements["$element"].value != url) {
281: window.opener.unClean();
282: }
283: }
284: function select_group() {
285: window.location="$location"+document.forms.fileattr.acts.value;
286: }
287:
288: function changeURL(val) {
289: if (window.opener.document) {
290: window.opener.document.forms["$form"].elements["$element"].value=val;
291: } else {
292: alert("The file you selected is: "+val);
293: }
294: }
295: END
296: if (!$titleelement) {
297: $catalogmodefunctions.='function changeTitle(val) {}';
298: } else {
299: $catalogmodefunctions.=<<END;
300: function changeTitle(val) {
301: if (window.opener.document) {
302: window.opener.document.forms["$form"].elements["$titleelement"].value=val;
303: } else {
304: alert("The title of the file you selected is: "+val);
305: }
306: }
307: END
308: }
309: } elsif ($mode eq 'parmset') {
310: my $location = "/adm/groupsort?catalogmode=interactive&";
311: $location .= "form=$form&element=$element&mode=parmset&acts=";
312: $catalogmodefunctions=<<END;
313: // mode = $mode
314: function select_data(url) {
315: changeURL(url);
316: self.close();
317: }
318:
319: function select_group() {
320: window.location="$location"+document.forms.fileattr.acts.value;
321: }
322:
323: function changeURL(val) {
324: if (window.opener.document) {
325: var elementname = "$element";
326: window.opener.document.forms["$form"].elements[elementname].value=val;
327: } else {
328: alert("The file you selected is: "+val);
329: }
330: }
331:
332: END
333: }
334: }
335: $catalogmodefunctions.=<<END;
336: var acts='';
337: function rep_dirpath(suffix,val) {
338: eval("document.forms.dirpath"+suffix+".acts.value=val");
339: }
340: END
341: if ($env{'form.catalogmode'} eq 'import') {
342: $catalogmodefunctions.=<<END;
343: function queue(val) {
344: if (eval("document.forms."+val+".filelink.checked")) {
345: var l=val.length;
346: var v=val.substring(4,l);
347: document.forms.fileattr.acts.value+='1a'+v+'b';
348: }
349: else {
350: var l=val.length;
351: var v=val.substring(4,l);
352: document.forms.fileattr.acts.value+='0a'+v+'b';
353: }
354: }
355: END
356: }
357:
358: my $inhibit_menu = "+'&".&Apache::loncommon::inhibit_menu_check()."'";
359: # ---------------------------------------------------------------- Print Header
360:
361: my $js = <<"ENDHEADER";
362: <script type="text/javascript">
363: // <![CDATA[
364: $catalogmodefunctions;
365: function update_only(field) {
366: alert(field.name);
367: }
368: function checkAll() {
369: var numForms = document.forms.length;
370: for (i=0;i<numForms;i++) {
371: var numElements = document.forms[i].elements.length;
372: for (j=0;j<numElements;j++){
373: var fieldName = document.forms[i].elements[j].name;
374: if (fieldName == 'filelink') {
375: document.forms[i].elements[j].checked = true;
376: queue(document.forms[i].name);
377: }
378: }
379: }
380: }
381: function uncheckAll() {
382: var numForms = document.forms.length;
383: for (i=0;i<numForms;i++) {
384: var numElements = document.forms[i].elements.length;
385: for (j=0;j<numElements;j++){
386: var fieldName = document.forms[i].elements[j].name;
387: if (fieldName == 'filelink') {
388: document.forms[i].elements[j].checked = false;
389: queue(document.forms[i].name);
390: }
391: }
392: }
393: }
394:
395: function openWindow(url, wdwName, w, h, toolbar,scrollbar,locationbar) {
396: var xpos = (screen.width-w)/2;
397: xpos = (xpos < 0) ? '0' : xpos;
398: var ypos = (screen.height-h)/2-30;
399: ypos = (ypos < 0) ? '0' : ypos;
400: var options = "width=" + w + ",height=" + h + ",screenx="+xpos+",screeny="+ypos+",";
401: options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
402: options += "menubar=no,toolbar="+toolbar+",location="+locationbar+",directories=no";
403: var newWin = window.open(url, wdwName, options);
404: newWin.focus();
405: }
406:
407: function gothere(val) {
408: window.location=val+'?acts='+document.forms.fileattr.acts.value$inhibit_menu;
409: }
410: // ]]>
411: </script>
412: ENDHEADER
413:
414: my ($headerdom)=($uri=~m{^/res/($match_domain)/});
415:
416: if ($env{'form.catalogmode'}) {
417: # "Popup mode"
418: $r->print(&Apache::loncommon::start_page('Browse published resources',$js,
419: {'only_body' => 1, 'add_modal' =>1,
420: 'domain' => $headerdom,}));
421: } else {
422: # Only display page header and breadcrumbs in non-popup mode
423: &Apache::lonhtmlcommon::clear_breadcrumbs();
424: &Apache::lonhtmlcommon::add_breadcrumb({
425: 'text' => 'Browse published resources',
426: 'href' => '/res/fhwfdev/?launch=1',
427: });
428: $r->print(&Apache::loncommon::start_page('Browse published resources',$js,
429: {'domain' => $headerdom,})
430: .&Apache::lonhtmlcommon::breadcrumbs()
431: );
432: }
433:
434: # ---------------------------------- get state of file types to be showing
435: if ($env{'form.only'}) {
436: $typeselect = $env{'form.only'};
437: } else {
438: $typeselect = '';
439: }
440:
441: # ---------------------------------- get state of file attributes to be showing
442: if ($env{'form.attrs'}) {
443: for (my $i=0; $i<=16; $i++) {
444: delete $hash{'display_attrs_'.$i};
445: if ($env{'form.attr'.$i} == 1) {
446: $attrchk[$i] = 'checked';
447: $hash{'display_attrs_'.$i} = 1;
448: }
449: }
450: } else {
451: for (my $i=0; $i<=16; $i++) {
452: $attrchk[$i] = 'checked="checked"' if $hash{'display_attrs_'.$i} == 1;
453: }
454: }
455:
456: my @file_categories = &Apache::loncommon::filecategories();
457: my %select_file_categories;
458: my @select_form_order = ('');
459: $select_file_categories{''} = &mt('All file types');
460: foreach my $cat (@file_categories) {
461: my $types = join(",",&Apache::loncommon::filecategorytypes($cat));
462: $select_file_categories{$types} = &mt($cat);
463: push(@select_form_order,$types);
464: }
465: $select_file_categories{'select_form_order'} = \@select_form_order;
466: my $onchange = 'this.form.submit();';
467: my $type_element=
468: &Apache::loncommon::select_form(
469: $typeselect,
470: 'only',
471: \%select_file_categories,$onchange);
472: my $type_selector = '<label>'.&mt('File Type Displayed: [_1]',
473: $type_element).'</label>';
474:
475: # ------------------------------- output state of file attributes to be showing
476: # All versions has to the last item
477: # since it does not take an extra col
478: my %lt=&Apache::lonlocal::texthash(
479: 'av' => 'All versions',
480: 'ud' => 'Update Display',
481: 'pr' => 'Problems',
482: 'gr' => 'Graphics',
483: 'at' => 'All types',
484: 'hd' => 'Display Options'
485: );
486: my @disp_order = ('0','4','5','6','13','1','2','3','10','14','8','11','7','12','15','16');
487: my %disp_options = &Apache::lonlocal::texthash (
488: 0 => 'Title',
489: 4 => 'Author',
490: 5 => 'Keywords',
491: 6 => 'Language',
492: 13 => 'Notes',
493: 1 => 'Size',
494: 2 => 'Last access',
495: 3 => 'Last modified',
496: 10 => 'Source Available',
497: 14 => 'Abstract',
498: 8 => 'Statistics',
499: 11 => 'Linked/Related Resources',
500: 7 => 'Show resource',
501: 12 => 'Subject',
502: 15 => 'Grade Level',
503: 16 => 'Standards',
504: );
505: my $cell = 0;
506: my $numinrow = 4;
507: $r->print('
508: <form method="post" name="fileattr" action="'.$uri.'" enctype="application/x-www-form-urlencoded">
509: <fieldset>
510: <legend>'.$lt{'hd'}.'</legend>
511: <table style=" border-collapse: collapse; border-style: none;">'."\n");
512: foreach my $item (@disp_order) {
513: my $style = 'padding-left: 12px; padding-right: 8px;';
514: if ($cell%$numinrow == 0) {
515: $r->print('<tr>');
516: }
517: $cell ++;
518: if ($cell > 3 * $numinrow) {
519: $style .= ' padding-bottom: 6px;';
520: }
521: if (defined($disp_options{$item})) {
522: $r->print('<td style="'.$style.'"><span class="LC_nobreak">'.
523: '<label><input type="checkbox" name="attr'.$item.'" value="1" '.
524: $attrchk[$item].' onclick="this.form.submit();" /> '.$disp_options{$item}.
525: '</label></span></td>'."\n");
526: }
527: if ($cell > 1 && $cell%$numinrow == 0) {
528: $r->print('</tr>');
529: }
530: }
531: $r->print(<<END);
532: <tr>
533: <td style="font-style: italic; border-top: 1px solid black; padding-top: 6px">
534: <label><input type="checkbox" name="attr9" value="1" $attrchk[9] onclick="this.form.submit();" /> $lt{'av'}</label>
535: </td>
536: <td colspan="3" style="padding-left:8px; padding-top: 4px; font-style: italic; border-top: 1px solid black; padding-top: 8px">$type_selector</td>
537: </tr>
538: </table>
539: <input type="hidden" name="attrs" value="1" />
540: </fieldset>
541: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
542: <input type="hidden" name="acts" value="" />
543: $closebutton $groupimportbutton
544: END
545: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
546:
547: # -------------- Filter out sequence containment in crumbs and "recent folders"
548: my $storeuri=$uri;
549: $storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
550: $storeuri=~s/\/+/\//g;
551: # ---------------------------------------------------------------- Bread crumbs
552: $r->print(
553: '<p>'
554: .&Apache::lonhtmlcommon::crumbs(
555: $storeuri,
556: '',
557: '',
558: (($env{'form.catalogmode'} eq 'import')?
559: 'document.forms.fileattr':''))
560: .'<br />'
561: .&Apache::lonhtmlcommon::select_recent(
562: 'residx',
563: 'resrecent',
564: '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();')
565: .'</p>'
566: );
567: # -------------------------------------------------------- Resource Home Button
568: my $reshome=$env{'course.'.$env{'request.course.id'}.'.reshome'};
569: if ($reshome) {
570: $r->print("<span class=\"LC_fontsize_large\"><a href='");
571: if ($env{'form.catalogmode'} eq 'import') {
572: $r->print('javascript:document.forms.fileattr.action="'.&Apache::loncommon::inhibit_menu_check($reshome).'";document.forms.fileattr.submit();');
573: } else {
574: $r->print($reshome);
575: }
576: $r->print("'>".&mt('Home').'</a></span>');
577: }
578: $r->print('</form>');
579: # ------------------------------------------------------ Remember where we were
580: &Apache::loncommon::storeresurl($storeuri);
581: &Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
582: # -------------------------------------------------- Check All and Uncheck all
583: if ($env{'form.catalogmode'} eq 'import') {
584: $r->print('<p><input type="button" value="'.&mt("Check All").'" id="checkallbutton" onclick="javascript:checkAll()" />');
585: $r->print('<input type="button" value="'.&mt("Uncheck All").'" id="uncheckallbutton" onclick="javascript:uncheckAll()" /></p>');
586: }
587: # ----------------- output starting row to the indexed file/directory hierarchy
588: #$r->print(&initdebug());
589: #$r->print(&writedebug("Omit:@Omit")) if (@Omit);
590: #$r->print(&writedebug("Only:@Only")) if (@Only);
591: $r->print(&Apache::loncommon::start_data_table("LC_tableBrowseRes")
592: .&Apache::loncommon::start_data_table_header_row());
593: $r->print("<th $colspan>".&mt('Name')."</th>\n");
594: $r->print("<th>".&mt('Title')."</th>\n")
595: if ($hash{'display_attrs_0'} == 1);
596: $r->print('<th class="LC_right">'.&mt("Size")." (".&mt("bytes").") ".
597: "</th>\n") if ($hash{'display_attrs_1'} == 1);
598: $r->print("<th>".&mt("Last accessed")."</th>\n")
599: if ($hash{'display_attrs_2'} == 1);
600: $r->print("<th>".&mt("Last modified")."</th>\n")
601: if ($hash{'display_attrs_3'} == 1);
602: $r->print("<th>".&mt("Author(s)")."</th>\n")
603: if ($hash{'display_attrs_4'} == 1);
604: $r->print("<th>".&mt("Keywords")."</th>\n")
605: if ($hash{'display_attrs_5'} == 1);
606: $r->print("<th>".&mt("Language")."</th>\n")
607: if ($hash{'display_attrs_6'} == 1);
608: $r->print("<th>".&mt("Usage Statistics")." <br />(".
609: &mt("Courses/Network Hits").") ".&mt('updated periodically')."</th>\n")
610: if ($hash{'display_attrs_8'} == 1);
611: $r->print("<th>".&mt("Source Available")."</th>\n")
612: if ($hash{'display_attrs_10'} == 1);
613: $r->print("<th>".&mt("Linked/Related Resources")."</th>\n")
614: if ($hash{'display_attrs_11'} == 1);
615: $r->print("<th>".&mt("Resource")."</th>\n")
616: if ($hash{'display_attrs_7'} == 1);
617: $r->print("<th>".&mt("Subject")."</th>\n")
618: if ($hash{'display_attrs_12'} == 1);
619: $r->print("<th>".&mt("Notes")."</th>\n")
620: if ($hash{'display_attrs_13'} == 1);
621: $r->print("<th>".&mt("Abstract")."</th>\n")
622: if ($hash{'display_attrs_14'} == 1);
623: $r->print("<th>".&mt("Grade Level")."</th>\n")
624: if ($hash{'display_attrs_15'} == 1);
625: $r->print("<th>".&mt("Standards")."</th>\n")
626: if ($hash{'display_attrs_16'} == 1);
627:
628: $r->print(&Apache::loncommon::end_data_table_header_row());
629:
630:
631:
632: # ----------------- read in what directories have previously been set to "open"
633: foreach (keys %hash) {
634: if ($_ =~ /^diropen_status_/) {
635: my $key = $_;
636: $key =~ s/^diropen_status_//;
637: $dirs{$key} = $hash{$_};
638: }
639: }
640:
641: if ($env{'form.openuri'}) { # take care of review and refresh options
642: my $uri=$env{'form.openuri'};
643: if (exists($hash{'diropen_status_'.$uri})) {
644: my $cursta = $hash{'diropen_status_'.$uri};
645: $dirs{$uri} = 'open';
646: $hash{'diropen_status_'.$uri} = 'open';
647: if ($cursta eq 'open') {
648: $dirs{$uri} = 'closed';
649: $hash{'diropen_status_'.$uri} = 'closed';
650: }
651: } else {
652: $hash{'diropen_status_'.$uri} = 'open';
653: $dirs{$uri} = 'open';
654: }
655: }
656:
657: my $toplevel;
658: my $indent = 0;
659: $uri = $uri.'/' if $uri !~ /.*\/$/;
660:
661: if ($env{'form.dirPointer'} ne 'on') {
662: $hash{'top.level'} = $uri;
663: $toplevel = $uri;
664: } else {
665: $toplevel = $hash{'top.level'};
666: }
667:
668: # -------------------------------- if not at top level, provide an uplink arrow
669: if ($toplevel ne '/res/'){
670: my (@uri_com) = split(/\//,$uri);
671: pop @uri_com;
672: my $upone = join('/',@uri_com);
673: my @list = qw (0);
674: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
675: $indent = 1;
676: }
677:
678: # -------- recursively go through all the directories and output as appropriate
679: &scanDir ($r,$toplevel,$indent,\%hash);
680:
681: # -------------------------------------------------------------- end the tables
682: $r->print(&Apache::loncommon::end_data_table());
683:
684: # ---------------------------- embed hidden information useful for group import
685: $r->print("<form name='fnum' action=''>");
686: $r->print("<input type='hidden' name='fnum' value='$fnum' /></form>");
687:
688: # --------------------------------------------------- end the output and return
689: $r->print(&Apache::loncommon::end_page()."\n");
690: }
691: if(! $c->aborted()) {
692: # write back into the temporary file
693: my %dbfile;
694: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
695: while (my($key,$value) = each(%hash)) {
696: $dbfile{$key}=$value;
697: }
698: untie(%dbfile);
699: }
700: }
701:
702: return OK;
703: }
704:
705: # ----------------------------------------------- recursive scan of a directory
706: sub scanDir {
707: my ($r,$startdir,$indent,$hashref)=@_;
708: my $c = $r->connection();
709: my ($compuri,$curdir);
710: my $dirptr=16384;
711: my $obs;
712: $indent++;
713: my %dupdirs = %dirs;
714: my @list=&get_list($r,$startdir);
715: foreach my $line (@list) {
716: return if ($c->aborted());
717: #This is a kludge, sorry aboot this
718: my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
719: next if($strip =~ /.*\.meta$/ | $obs eq '1');
720: my (@fileparts) = split(/\./,$strip);
721: if ($hash{'display_attrs_9'} != 1) {
722: # if not all versions to be shown
723: if (scalar(@fileparts) >= 3) {
724: my $fext = pop @fileparts;
725: my $ov = pop @fileparts;
726: my $fname = join ('.',@fileparts,$fext);
727: next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
728: }
729: }
730:
731: if ($dom eq 'domain') {
732: # dom list has full path /res/<domain name>/ already
733: $curdir='';
734: $compuri = (split(/\&/,$line))[0];
735: } else {
736: # user, dir & file have name only, i.e., w/o path
737: $compuri = join('',$startdir,$strip,'/');
738: $curdir = $startdir;
739: }
740: my $diropen = 'closed';
741: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
742: while (my ($key,$val)= each %dupdirs) {
743: if ($key eq $compuri and $val eq "open") {
744: $diropen = "opened";
745: delete($dupdirs{$key});
746: delete($dirs{$key});
747: }
748: }
749: }
750: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
751: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
752: }
753: $indent--;
754: }
755:
756: # --------------- get complete matched list based on the uri (returns an array)
757: sub get_list {
758: my ($r,$uri)=@_;
759: my @list=();
760: my $listerror;
761:
762: (my $luri = $uri) =~ s/\//_/g;
763: if ($env{'form.updatedisplay'}) {
764: foreach (keys %hash) {
765: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
766: delete $hash{$_} if ($_ =~ /^dirlist_timestamp_files_/);
767: }
768: }
769:
770: if (defined($hash{'dirlist_files_'.$luri}) &&
771: $hash{'dirlist_timestamp_files_'.$luri}+600 > (time)) {
772: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
773: } elsif ($uri=~/\.(page|sequence)\/$/) {
774: # is a page or a sequence
775: $uri=~s/\/$//;
776: $uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
777: $uri=~s/\/+/\//g;
778: foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
779: my @ratpart=split(/\:/,$_);
780: push(@list,&LONCAPA::map::qtescape($ratpart[1]));
781: }
782: $hash{'dirlist_files_'.$luri} = join("\n",@list);
783: } else {
784: # is really a directory
785: (my $listref,$listerror) = &Apache::lonnet::dirlist($uri);
786: if (ref($listref) eq 'ARRAY') {
787: @list = @{$listref};
788: }
789: $hash{'dirlist_files_'.$luri} = join("\n",@list);
790: $hash{'dirlist_timestamp_files_'.$luri} = time;
791: }
792: #Checking for error messages associated with empty directories or inaccessible servers (See Bug 4984)
793: if (($listerror eq 'no_such_dir') || ($listerror eq 'no_such_host') || ($listerror eq 'no_host')) {
794: $r->print("<p class='LC_info'>" . &mt("Directory does not exist."). "</p>");
795: } elsif ($listerror eq 'con_lost') {
796: $r->print("<p class='LC_info'>" . &mt("Directory temporarily not accessible."). "</p>");
797: }
798:
799: return @list=&match_ext($r,@list);
800: }
801:
802: sub dynmetaread {
803: my $uri=shift;
804: if (($hash{'display_attrs_8'}==1) || ($hash{'display_attrs_11'}==1)) {
805: # We don't want the filename
806: $uri=~s/\/[^\/]+$//;
807: # Did we already see this?
808: my $builddir=$uri;
809: while ($builddir) {
810: if ($dynread{$builddir}) {
811: return 0;
812: }
813: $builddir=~s/\/[^\/]+$//;
814: }
815: # Actually get the data
816: %dynhash=
817: (%dynhash,&Apache::lonmeta::get_dynamic_metadata_from_sql($uri.'/'));
818: # Remember that we got it
819: $dynread{$uri}=1;
820: }
821: }
822:
823: sub initdebug {
824: my $start_page=
825: &Apache::loncommon::start_page('Debug',undef,
826: {'only_body' => 1,});
827: $start_page =~ s/\n/ /g;
828: return <<ENDJS;
829: <script type="text/javascript">
830: var debugging = true;
831: if (debugging) {
832: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
833: }
834:
835: function output(text) {
836: if (debugging) {
837: debuggingWindow.document.writeln(text);
838: }
839: }
840: output('$start_page<pre>');
841: </script>
842: ENDJS
843: }
844:
845: sub writedebug {
846: my ($text) = @_;
847: return "<script type=\"text/javascript\">output('$text');</script>";
848: }
849:
850: # -------------------- filters out files based on extensions (returns an array)
851: sub match_ext {
852: my ($r,@packlist)=@_;
853: my @trimlist;
854: my $nextline;
855: my @fileext;
856: my $dirptr=16384;
857:
858: foreach my $line (@packlist) {
859: chomp $line;
860: $line =~ s/^\/home\/httpd\/html//;
861: my @unpackline = split (/\&/,$line);
862: next if ($unpackline[0] eq '.');
863: next if ($unpackline[0] eq '..');
864: my @filecom = split (/\./,$unpackline[0]);
865: my $fext = pop(@filecom);
866: my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
867: if ($fnptr == 0 and $unpackline[3] ne "") {
868: my $embstyle = &Apache::loncommon::fileembstyle($fext);
869: push @trimlist,$line if (defined($embstyle) &&
870: ($embstyle ne 'hdn' or $fext eq 'meta'));
871: } else {
872: push @trimlist,$line;
873: }
874: }
875: @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
876: return @trimlist;
877: }
878:
879: # ------------------------------- displays one line in appropriate table format
880: sub display_line {
881: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
882: my (@pathfn, $fndir);
883: # there could be relative paths (files actually belonging into this directory)
884: # or absolute paths (for example, from sequences)
885: my $absolute;
886: my $pathprefix;
887: if ($line=~m|^/res/| && $startdir ne '') {
888: $absolute=1;
889: $pathprefix='';
890: } else {
891: $absolute=0;
892: $pathprefix=$startdir;
893: }
894: my $dirptr=16384;
895: #SB my $fileclr="#ffffe6";
896: my $iconpath= $r->dir_config('lonIconsURL') . '/';
897:
898: my @filecom = split (/\&/,$line);
899: my @pathcom = split (/\//,$filecom[0]);
900: my $listname = $pathcom[scalar(@pathcom)-1];
901: my $fnptr = $filecom[3]&$dirptr;
902: my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
903: $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
904: my $nowOpen = ($diropen eq 'opened' ? 1 : 0);
905:
906: my $tabtag='</td>';
907: my $i=0;
908: while ($i<=16) {
909: $tabtag=join('',$tabtag,"<td> </td>")
910: if ($i != 9 &&
911: $hash{'display_attrs_'.$i} == 1);
912: $i++;
913: }
914: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
915:
916: # display uplink arrow
917: if ($filecom[1] eq 'viewOneUp') {
918: my $updir=$startdir;
919: # -------------- Filter out sequence containment in crumbs and "recent folders"
920: $updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
921: $updir=~s/\/+/\//g;
922:
923: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
924: $r->print(&Apache::loncommon::start_data_table_row()); # valign="$valign" ?!?
925: $r->print($extrafield);
926: $r->print("<td>\n");
927: $r->print ('<form method="post" name="dirpathUP" action="'.$updir.
928: '/" '.
929: 'onsubmit="return rep_dirpath(\'UP\','.
930: 'document.forms.fileattr.acts.value)" '.
931: 'enctype="application/x-www-form-urlencoded"'.
932: '>'."\n");
933: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
934: $r->print ('<input type="hidden" name="openuri" value="'.
935: $startdir.'" />'."\n");
936: $r->print ('<input type="hidden" name="acts" value="" />'."\n");
937: $r->print ('<a href="#" onclick="document.dirpathUP.submit()"><img src="'.$iconpath.'arrow.up.gif"');
938: $r->print (' alt="'.$msg.'" class="LC_fileicon" />'.
939: "\n");
940: $r->print(&mt("Up")."</a></form>$tabtag");
941: $r->print(&Apache::loncommon::end_data_table_row());
942: return OK;
943: }
944: # Do we have permission to look at this?
945: if($filecom[15] ne '1') { return OK if ((!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])) && (!&Apache::lonnet::allowed('bro',$pathprefix.$filecom[0]))); }
946:
947: # make absolute links appear on different background
948: #SB if ($absolute) { $fileclr='#ccdd99'; }
949:
950: # display domain
951: if ($filecom[1] eq 'domain') {
952: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n")
953: if ($env{'form.dirPointer'} eq "on");
954: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
955: $r->print(&Apache::loncommon::start_data_table_row()); # valign="$valign" ?!?"
956: $r->print($extrafield);
957: $r->print("<td>");
958: &begin_form ($r,$filecom[0]);
959: my $anchor = $filecom[0];
960: $anchor =~ s/\W//g;
961: $r->print ('<a name="'.$anchor.'"></a>');
962: $r->print ('<input type="hidden" name="acts" value="" />');
963: $r->print ('<a href="#" onclick="document.dirpath'.($dnum-1).'.submit()"><img src="'.$iconpath.'arrow.'.($nowOpen ? "open" : "closed" ).'.gif"');
964: $r->print (' alt="'.$msg.'" class="LC_fileicon" /></a>'.
965: "\n");
966: my $quotable_filecom = &Apache::loncommon::escape_single($filecom[0]);
967: $r->print ('<a href="javascript:gothere(\''.$quotable_filecom.
968: '\')"><img alt="" src="'.$iconpath.'server.gif"');
969: $r->print (' class="LC_fileicon" />'."\n");
970: $r->print (&mt("Domain")." - $listname </a>");
971: if (&Apache::lonnet::domain($listname,'description')) {
972: $r->print("<br />(".&Apache::lonnet::domain($listname,'description').
973: ")");
974: }
975: $r->print("</form>$tabtag");
976: $r->print(&Apache::loncommon::end_data_table_row());
977: return OK;
978:
979: # display user directory
980: }
981: if ($filecom[1] eq 'user') {
982: # $r->print("<tr valign=$valign bgcolor=\"$fileclr\">$extrafield");
983: my $curdir = $startdir.$filecom[0].'/';
984: my $anchor = $curdir;
985: $anchor =~ s/\W//g;
986: #SB $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
987: $r->print(&Apache::loncommon::start_data_table_row()
988: .$extrafield.'<td class="LC_'.$valign.'">');
989: &begin_form ($r,$curdir);
990: $r->print ('<a name="'.$anchor.'"></a><img alt="" src="'.$iconpath.
991: 'whitespace_21.gif" class="LC_icon" />'."\n");
992: $r->print ('<input type="hidden" name="acts" value="" />');
993: $r->print ('<a href="#" onclick="document.dirpath'.($dnum-1).'.submit()">');
994: $r->print ('<img src="'.$iconpath.'arrow.'.($nowOpen ? "open" : "closed" ).
995: '.gif" class="LC_fileicon"');
996: $r->print (' alt="'.$msg.'"/></a>'.
997: "\n");
998: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
999: $r->print ('<a href="javascript:gothere(\''.$quotable_curdir
1000: .'\')"><img alt="'.$msg.'" src="'.
1001: $iconpath.'quill.gif" class="LC_fileicon" />');
1002: my $domain=(split(m|/|,$startdir))[2];
1003: my $plainname=&Apache::loncommon::plainname($listname,$domain);
1004: $r->print ($listname.'</a>');
1005:
1006: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
1007: $r->print('</form></td>');
1008: $r->print(&Apache::loncommon::end_data_table_row());
1009: return OK;
1010: }
1011:
1012: # display file
1013: if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
1014: my $title;
1015: my $filelink = $pathprefix.$filecom[0];
1016: if ($hash{'display_attrs_0'} == 1) {
1017: $title = &Apache::lonnet::gettitle($filelink);
1018: }
1019: my @file_ext = split (/\./,$listname);
1020: my $curfext = $file_ext[-1];
1021: if (@Omit) {
1022: foreach (@Omit) { return OK if (lc($curfext) eq $_); }
1023: }
1024: if (@Only) {
1025: my $skip = 1;
1026: foreach (@Only) { $skip = 0 if (lc($curfext) eq $_); }
1027: return OK if ($skip > 0);
1028: }
1029: # Set the icon for the file
1030: my $iconname = &Apache::loncommon::icon($listname);
1031: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">);
1032: $r->print(&Apache::loncommon::start_data_table_row()); #SB valign="$valign" ?!?
1033: $r->print('<td class="LC_middle LC_nobreak">');
1034:
1035: if ($env{'form.catalogmode'} eq 'interactive') {
1036: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
1037: $r->print("<a href=\"javascript:select_data(\'",
1038: $quotable_filelink,"')\">");
1039: $r->print("<img alt=\"\" src='",$iconpath,"select.gif' class='LC_icon' /></a>".
1040: "\n");
1041: $r->print('</td><td class="LC_middle">');
1042: } elsif ($env{'form.catalogmode'} eq 'import') {
1043: $r->print("<form name='form$fnum' action=''>\n");
1044: $r->print("<input type='checkbox' name='filelink"."' ".
1045: "value='$filelink' onclick='".
1046: "javascript:queue(\"form$fnum\")' ");
1047: if ($hash{'store_'.$filelink}) {
1048: $r->print("checked");
1049: }
1050: $r->print(" />\n");
1051: $r->print('</form></td><td class="LC_middle">');
1052: $hash{"pre_${fnum}_link"}=$filelink;
1053: $hash{"pre_${fnum}_title"}=$title;
1054: if (!$hash{"pre_${fnum}_title"}) {
1055: $hash{"pre_${fnum}_title"} = 'Not_retrieved';
1056: }
1057: $fnum++;
1058: }
1059: # Form to open or close sequences
1060: if ($filelink=~/\.(page|sequence)$/) {
1061: my $curdir = $startdir.$filecom[0].'/';
1062: &begin_form($r,$curdir);
1063: $indent--;
1064: }
1065: # General indentation
1066: my $count = 0;
1067: while ($count < $indent) {
1068: $r->print('<img alt="" src="'.$iconpath.'whitespace_21.gif"
1069: class="LC_icon" />');
1070: $count++;
1071: }
1072: # Sequence open/close icon
1073: if ($filelink=~/\.(page|sequence)$/) {
1074: my $curdir = $startdir.$filecom[0].'/';
1075: my $anchor = $curdir;
1076: $anchor =~ s/\W//g;
1077: $r->print ('<input type="hidden" name="acts" value="" />');
1078: $r->print ('<a name="'.$anchor.'"></a>');
1079: $r->print ('<a href="#" onclick="document.dirpath'.($dnum-1).'.submit()">');
1080: $r->print ('<img src="'.$iconpath.'arrow.'.($nowOpen ? "open" : "closed" ).
1081: '.gif" class="LC_fileicon"');
1082: $r->print (' alt="'.$msg.'" /></a>'.
1083: "\n");
1084: }
1085: # Filetype icons
1086: $r->print("<img alt=\"\" src='$iconname' class='LC_fileicon' />\n");
1087: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
1088:
1089: $r->print (" <a href=\"javascript:openMyModal('".$quotable_filelink."?inhibitmenu=yes',500,500,'yes');\">$listname</a> ");
1090: $quotable_filelink = &Apache::loncommon::escape_single($filelink.'.meta');
1091: &Apache::loncommon::inhibit_menu_check(\$quotable_filelink);
1092: $r->print (" (<a href=\"javascript:openMyModal('".$quotable_filelink."?inhibitmenu=yes',500,500,'yes');\">".&mt('metadata')."</a>) ");
1093: # Close form to open/close sequence
1094: if ($filelink=~/\.(page|sequence)$/) {
1095: $r->print('</form>');
1096: }
1097: $r->print("</td>\n");
1098: if ($hash{'display_attrs_0'} == 1) {
1099: $r->print('<td> '.($title eq '' ? ' ' : $title).
1100: ' </td>'."\n");
1101: }
1102: $r->print('<td class="LC_right"> ',
1103: $filecom[8]," </td>\n")
1104: if $hash{'display_attrs_1'} == 1;
1105: $r->print('<td class="LC_nobreak"> '.
1106: (&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
1107: if $hash{'display_attrs_2'} == 1;
1108: $r->print('<td class="LC_nobreak"> '.
1109: (&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
1110: if $hash{'display_attrs_3'} == 1;
1111:
1112: if ($hash{'display_attrs_4'} == 1) {
1113: my $author = &Apache::lonnet::metadata($filelink,'author');
1114: $r->print('<td class="LC_nobreak"> '.($author eq '' ? ' ' : $author).
1115: " </td>\n");
1116: }
1117: if ($hash{'display_attrs_5'} == 1) {
1118: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1119: # $keywords = ' ' if (!$keywords);
1120: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1121: " </td>\n");
1122: }
1123:
1124: if ($hash{'display_attrs_6'} == 1) {
1125: my $lang = &Apache::lonnet::metadata($filelink,'language');
1126: $lang = &Apache::loncommon::languagedescription($lang);
1127: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1128: " </td>\n");
1129: }
1130: if ($hash{'display_attrs_8'} == 1) {
1131: # statistics
1132: &dynmetaread($filelink);
1133: $r->print("<td>");
1134:
1135: for (qw(count course stdno avetries difficulty disc clear technical
1136: correct helpful depth)) {
1137:
1138: dynmetaprint($r,$filelink,$_);
1139: }
1140:
1141: $r->print(" </td>\n");
1142:
1143: }
1144: if ($hash{'display_attrs_10'} == 1) {
1145: my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
1146: if($source eq 'open') {
1147: my $sourcelink = &Apache::lonsource::make_link($filelink,$listname);
1148: my $quotable_sourcelink = &Apache::loncommon::escape_single($sourcelink);
1149: &Apache::loncommon::inhibit_menu_check(\$quotable_sourcelink);
1150: $r->print('<td>'."<a href=\"javascript:openWindow('"
1151: .$quotable_sourcelink.
1152: "', 'previewsource', '700', '700', 'no', 'yes','yes');\"".
1153: " target=\"_self\">".&mt('Source Code')."</a> "."</td>\n");
1154: } else { #A cuddled else. :P
1155: $r->print("<td> </td>\n");
1156: }
1157: }
1158: if ($hash{'display_attrs_11'} == 1) {
1159: # links
1160: &dynmetaread($filelink);
1161: $r->print('<td>');
1162: &coursecontext($r,$filelink);
1163: for (qw(goto_list comefrom_list sequsage_list dependencies course_list)) {
1164: dynmetaprint($r,$filelink,$_);
1165: }
1166: $r->print('</td>');
1167: }
1168:
1169:
1170:
1171: if ($hash{'display_attrs_7'} == 1) {
1172: # Show resource
1173: my $output=&showpreview($filelink);
1174: $r->print('<td class="LC_fontsize_medium">'.($output eq '' ? ' ':$output).
1175: " </td>\n");
1176: }
1177:
1178: if ($hash{'display_attrs_12'} == 1) {
1179: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1180: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1181: " </td>\n");
1182: }
1183:
1184: if ($hash{'display_attrs_13'} == 1) {
1185: my $notes = &Apache::lonnet::metadata($filelink,'notes');
1186: $r->print('<td> '.($notes eq '' ? ' ' : $notes).
1187: " </td>\n");
1188: }
1189:
1190: if ($hash{'display_attrs_14'} == 1) {
1191: my $abstract = &Apache::lonnet::metadata($filelink,'abstract');
1192: $r->print('<td> '.($abstract eq '' ? ' ' : $abstract).
1193: " </td>\n");
1194: }
1195:
1196: if ($hash{'display_attrs_15'} == 1) {
1197: my $gradelevel = &Apache::lonnet::metadata($filelink,'gradelevel');
1198: $r->print('<td> '.($gradelevel eq '' ? ' ' : $gradelevel).
1199: " </td>\n");
1200: }
1201:
1202: if ($hash{'display_attrs_16'} == 1) {
1203: my $standards = &Apache::lonnet::metadata($filelink,'standards');
1204: $r->print('<td> '.($standards eq '' ? ' ' : $standards).
1205: " </td>\n");
1206: }
1207:
1208: $r->print(&Apache::loncommon::end_data_table_row());
1209: }
1210:
1211:
1212:
1213: # -- display directory
1214: if ($fnptr == $dirptr) {
1215: my $curdir = $startdir.$filecom[0].'/';
1216: my $anchor = $curdir;
1217: $anchor =~ s/\W//g;
1218: #SB $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
1219: $r->print(&Apache::loncommon::start_data_table_row()); # SB: bgcolor suggestion: darkgrey ("LC_info_row"?!?)
1220: # $r->print('<tr class="LC_info_row">');
1221: $r->print($extrafield.'<td class="LC_middle LC_nobreak">');
1222: &begin_form ($r,$curdir);
1223: my $indentm1 = $indent-1;
1224: my $count = 0;
1225: while ($count < $indentm1) {
1226: $r->print ('<img alt="" src="',$iconpath
1227: ,'whitespace_21.gif" class="LC_icon" />');
1228: $count++;
1229: }
1230: $r->print ('<input type="hidden" name="acts" value="" />');
1231: $r->print ('<a name="'.$anchor.'"></a>');
1232: $r->print ('<a href="#" onclick="document.dirpath'.($dnum-1).'.submit()"><img src="'.$iconpath.
1233: 'arrow.'.($nowOpen ? "open" : "closed" ).'.gif"');
1234: $r->print (' alt="'.$msg.'" class="LC_fileicon" /></a>'.
1235: "\n");
1236: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
1237:
1238: my $location = &Apache::loncommon::lonhttpdurl("/adm/lonIcons");
1239: my $icon = "navmap.folder.".($nowOpen ? "open":"closed").'.gif';
1240: $r->print ('<a href="javascript:gothere('
1241: ."'$quotable_curdir'".');">'
1242: .'<img class="LC_fileicon" alt="'.&mt('Open Folder').'" src="'
1243: .$location.'/'.$icon.'" />'
1244: ."\n");
1245: $r->print ("$listname</a></form>");
1246: $r->print('</td>');
1247: # Attributes
1248: my $filelink = $startdir.$filecom[0].'/default';
1249:
1250: if ($hash{'display_attrs_0'} == 1) {
1251: my $title = &Apache::lonnet::gettitle($filelink);
1252: $r->print('<td> '.($title eq '' ? ' ' : $title).
1253: ' </td>'."\n");
1254: }
1255: $r->print('<td class="LC_right"> ',
1256: $filecom[8]," </td>\n")
1257: if $hash{'display_attrs_1'} == 1;
1258: $r->print('<td class="LC_break"> '.
1259: (&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
1260: if $hash{'display_attrs_2'} == 1;
1261: $r->print('<td class="LC_break"> '.
1262: (&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
1263: if $hash{'display_attrs_3'} == 1;
1264:
1265: if ($hash{'display_attrs_4'} == 1) {
1266: my $author = &Apache::lonnet::metadata($filelink,'author');
1267: $r->print('<td> '.($author eq '' ? ' ' : $author).
1268: " </td>\n");
1269: }
1270: if ($hash{'display_attrs_5'} == 1) {
1271: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1272: # $keywords = ' ' if (!$keywords);
1273: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1274: " </td>\n");
1275: }
1276: if ($hash{'display_attrs_6'} == 1) {
1277: my $lang = &Apache::lonnet::metadata($filelink,'language');
1278: $lang = &Apache::loncommon::languagedescription($lang);
1279: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1280: " </td>\n");
1281: }
1282:
1283: if ($hash{'display_attrs_8'} == 1) {
1284: $r->print('<td> </td>');
1285: }
1286: if ($hash{'display_attrs_10'} == 1) {
1287: $r->print('<td> </td>');
1288: }
1289: if ($hash{'display_attrs_7'} == 1) {
1290: $r->print('<td> </td>');
1291: }
1292: if ($hash{'display_attrs_11'} == 1) {
1293: $r->print('<td> </td>');
1294: }
1295: if ($hash{'display_attrs_12'} == 1) {
1296: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1297: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1298: " </td>\n");
1299: }
1300: if ($hash{'display_attrs_13'} == 1) {
1301: my $notes = &Apache::lonnet::metadata($filelink,'notes');
1302: $r->print('<td> '.($notes eq '' ? ' ' : $notes).
1303: " </td>\n");
1304: }
1305:
1306: if ($hash{'display_attrs_14'} == 1) {
1307: my $abstract = &Apache::lonnet::metadata($filelink,'abstract');
1308: $r->print('<td> '.($abstract eq '' ? ' ' : $abstract).
1309: " </td>\n");
1310: }
1311:
1312: if ($hash{'display_attrs_15'} == 1) {
1313: my $gradelevel = &Apache::lonnet::metadata($filelink,'gradelevel');
1314: $r->print('<td> '.($gradelevel eq '' ? ' ' : $gradelevel).
1315: " </td>\n");
1316: }
1317:
1318: if ($hash{'display_attrs_16'} == 1) {
1319: my $standards = &Apache::lonnet::metadata($filelink,'standards');
1320: $r->print('<td> '.($standards eq '' ? ' ' : $standards).
1321: " </td>\n");
1322: }
1323:
1324:
1325: $r->print(&Apache::loncommon::end_data_table_row());
1326: }
1327:
1328: }
1329:
1330: sub coursecontext {
1331: my ($r,$filelink)=@_;
1332: my $filesymb=&Apache::lonnet::symbread($filelink);
1333: if ($filesymb) {
1334: my ($map,$index,$resource)=&Apache::lonnet::decode_symb($filesymb);
1335: $r->print(&mt('Already in this course:<br />[_1] in folder/map [_2].<br />',
1336: &Apache::lonnet::gettitle($resource),
1337: &Apache::lonnet::gettitle($map)));
1338: }
1339: }
1340:
1341: sub showpreview {
1342: my ($filelink)=@_;
1343: if ($filelink=~m-^(/ext/|http://)-) {
1344: return &mt('External Resource, preview not enabled');
1345: }
1346: my ($curfext)=($filelink=~/\.(\w+)$/);
1347: my $output='';
1348: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
1349: if ($embstyle eq 'ssi') {
1350: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
1351: '.tmp';
1352: if ((!$env{'form.updatedisplay'}) &&
1353: (-e $cache)) {
1354: open(FH,$cache);
1355: $output=join("\n",<FH>);
1356: close(FH);
1357: } else {
1358: # In update display mode, remove old cache. This is done to retroactively
1359: # clean up course context renderings.
1360: if (-e $cache) {
1361: unlink($cache);
1362: }
1363: $output=&Apache::lonnet::ssi_body($filelink);
1364: # Is access denied? Don't render, don't store
1365: if ($output=~/LONCAPAACCESSCONTROLERRORSCREEN/s) {
1366: $output='';
1367: # Was this rendered in course content? Don't store
1368: } elsif (!&Apache::lonnet::symbread($filelink)) {
1369: open(FH,">$cache");
1370: print FH $output;
1371: close(FH);
1372: }
1373: }
1374: } elsif ($embstyle eq 'img') {
1375: $output='<img alt="'.&mt('Preview').'" src="'.$filelink.'" />';
1376: } elsif ($filelink=~m{^/res/($match_domain)/($match_username)/}) {
1377: $output='<img alt="'.&mt('Preview').'" src="http://'.
1378: &Apache::lonnet::hostname(&Apache::lonnet::homeserver($2,$1)).
1379: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1380: }
1381: return $output;
1382: }
1383:
1384: sub dynmetaprint {
1385: my ($r,$filelink,$item)=@_;
1386: if ($dynhash{$filelink}->{$item}) {
1387: $r->print("\n<br />".$fieldnames{$item}.': '.
1388: &Apache::lonmeta::prettyprint($item,
1389: $dynhash{$filelink}->{$item},
1390: (($env{'form.catalogmode'} ne 'import')?'preview':''),
1391: '',
1392: (($env{'form.catalogmode'} eq 'import')?'document.forms.fileattr':''),1));
1393: }
1394: }
1395:
1396: # ------------------- prints the beginning of a form for directory or file link
1397: sub begin_form {
1398: my ($r,$uri) = @_;
1399: my $anchor = $uri;
1400: $anchor =~ s/\W//g;
1401: $uri=&Apache::loncommon::escape_single($uri);
1402: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1403: '#'.$anchor.
1404: '" onsubmit="return rep_dirpath(\''.$dnum.'\''.
1405: ',document.forms.fileattr.acts.value)" '.
1406: 'enctype="application/x-www-form-urlencoded">'."\n");
1407: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'" />'.
1408: "\n");
1409: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n");
1410: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
1411: $dnum++;
1412: }
1413:
1414: # --------- settings whenever the user causes the indexer window to be launched
1415: sub start_fresh_session {
1416: my ($hash) = @_;
1417: delete $hash->{'form.catalogmode'};
1418: delete $hash->{'form.mode'};
1419: delete $hash->{'form.form'};
1420: delete $hash->{'form.element'};
1421: delete $hash->{'form.omit'};
1422: delete $hash->{'form.only'};
1423: foreach (keys %{$hash}) {
1424: delete $hash->{$_} if (/^(pre_|store)/);
1425: }
1426: }
1427:
1428: # ------------------------------------------------------------------- setvalues
1429: sub setvalues {
1430: # setvalues is used in registerurl to synchronize the database
1431: # hash and environment hashes
1432: my ($H1,$h1key,$H2,$h2key) =@_;
1433: #
1434: if (exists $H2->{$h2key}) {
1435: $H1->{$h1key} = $H2->{$h2key};
1436: } elsif (exists $H1->{$h1key}) {
1437: $H2->{$h2key} = $H1->{$h1key};
1438: }
1439: }
1440:
1441: 1;
1442:
1443: sub cleanup {
1444: if (tied(%hash)){
1445: &Apache::lonnet::logthis('Cleanup indexer: hash');
1446: }
1447: return OK;
1448: }
1449:
1450:
1451:
1452:
1453:
1454: =head1 NAME
1455:
1456: Apache::lonindexer - mod_perl module for cross server filesystem browsing
1457:
1458: =head1 SYNOPSIS
1459:
1460: Invoked by /etc/httpd/conf/srm.conf:
1461:
1462: <LocationMatch "^/res.*/$">
1463: SetHandler perl-script
1464: PerlHandler Apache::lonindexer
1465: </LocationMatch>
1466:
1467: =head1 INTRODUCTION
1468:
1469: This module enables a scheme of browsing across a cross server.
1470:
1471: This is part of the LearningOnline Network with CAPA project
1472: described at http://www.lon-capa.org.
1473:
1474: =head1 BEGIN SUBROUTINE
1475:
1476: This routine is only run once after compilation.
1477:
1478: =over 4
1479:
1480: =item *
1481:
1482: Initializes %language hash table.
1483:
1484: =back
1485:
1486: =head1 HANDLER SUBROUTINE
1487:
1488: This routine is called by Apache and mod_perl.
1489:
1490: =over 4
1491:
1492: =item *
1493:
1494: read in machine configuration variables
1495:
1496: =item *
1497:
1498: see if called from an interactive mode
1499:
1500: =item *
1501:
1502: refresh environment with user database values (in %hash)
1503:
1504: =item *
1505:
1506: define extra fields and buttons in case of special mode
1507:
1508: =item *
1509:
1510: set catalogmodefunctions to have extra needed javascript functionality
1511:
1512: =item *
1513:
1514: print header
1515:
1516: =item *
1517:
1518: evaluate actions from previous page (both cumulatively and chronologically)
1519:
1520: =item *
1521:
1522: output title
1523:
1524: =item *
1525:
1526: get state of file attributes to be showing
1527:
1528: =item *
1529:
1530: output state of file attributes to be showing
1531:
1532: =item *
1533:
1534: output starting row to the indexed file/directory hierarchy
1535:
1536: =item *
1537:
1538: read in what directories have previously been set to "open"
1539:
1540: =item *
1541:
1542: if not at top level, provide an uplink arrow
1543:
1544: =item *
1545:
1546: recursively go through all the directories and output as appropriate
1547:
1548: =item *
1549:
1550: information useful for group import
1551:
1552: =item *
1553:
1554: end the tables
1555:
1556: =item *
1557:
1558: end the output and return
1559:
1560: =back
1561:
1562: =head1 OTHER SUBROUTINES
1563:
1564: =over 4
1565:
1566: =item *
1567:
1568: scanDir - recursive scan of a directory
1569:
1570: =item *
1571:
1572: get_list - get complete matched list based on the uri (returns an array)
1573:
1574: =item *
1575:
1576: match_ext - filters out files based on extensions (returns an array)
1577:
1578: =item *
1579:
1580: display_line - displays one line in appropriate table format
1581:
1582: =item *
1583:
1584: begin_form - prints the beginning of a form for directory or file link
1585:
1586: =item *
1587:
1588: start_fresh_session - settings whenever the user causes the indexer window
1589: to be launched
1590:
1591: =back
1592:
1593: =cut
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