1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.218 2013/06/02 01:41:09 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. Handling routine called via Apache and mod_perl ##
38: ## 5. Other subroutines ##
39: ## ##
40: ###############################################################################
41:
42: package Apache::lonindexer;
43:
44: # ------------------------------------------------- modules used by this module
45: use strict;
46: use Apache::lonnet;
47: use Apache::loncommon();
48: use Apache::lonhtmlcommon();
49: use Apache::lonsequence();
50: use Apache::Constants qw(:common);
51: use Apache::lonmeta;
52: use Apache::File;
53: use Apache::lonlocal;
54: use Apache::lonsource();
55: use Apache::groupsort();
56: use GDBM_File;
57: use LONCAPA qw(:match);
58:
59: # ---------------------------------------- variables used throughout the module
60: my %hash; # global user-specific gdbm file
61: my %dirs; # keys are directories, values are the open/close status
62: my %dynhash; # hash of hashes for dynamic metadata
63: my %dynread; # hash of directories already read for dynamic metadata
64: my %fieldnames; # Metadata fieldnames
65: # ----- Values which are set by the handler subroutine and are accessible to
66: # ----- other methods.
67: my $extrafield; # default extra table cell
68: my $fnum; # file counter
69: my $dnum; # directory counter
70:
71: # ----- Used to include or exclude files with certain extensions.
72: my @Only = ();
73: my @Omit = ();
74:
75:
76:
77:
78: # ----------------------------- Handling routine called via Apache and mod_perl
79: sub handler {
80: my $r = shift;
81: my $c = $r->connection();
82: &Apache::loncommon::content_type($r,'text/html');
83: &Apache::loncommon::no_cache($r);
84: $r->send_http_header;
85: return OK if $r->header_only;
86: $fnum=0;
87: $dnum=0;
88:
89: # Deal with stupid global variables (is there a way around making
90: # these global to this package? It is just so wrong....)
91: undef (@Only);
92: undef (@Omit);
93: %fieldnames=&Apache::lonmeta::fieldnames();
94:
95: # ------------------------------------- read in machine configuration variables
96: my $iconpath= $r->dir_config('lonIconsURL') . "/";
97: my $domain = $r->dir_config('lonDefDomain');
98: my $role = $r->dir_config('lonRole');
99: my $loadlim = $r->dir_config('lonLoadLim');
100: my $servadm = $r->dir_config('lonAdmEMail');
101: my $sysadm = $r->dir_config('lonSysEMail');
102: my $lonhost = $r->dir_config('lonHostID');
103: my $tabdir = $r->dir_config('lonTabDir');
104:
105: #SB my $fileclr='#ffffe6';
106: my $line;
107: my (@attrchk,@openpath,$typeselect);
108: my $uri=$r->uri;
109:
110: # -------------------------------------- see if called from an interactive mode
111: # Get the parameters from the query string
112: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
113: ['catalogmode','launch','acts','mode','form','element',
114: 'only','omit','titleelement']);
115: #-------------------------------------------------------------------
116: my $closebutton='';
117: my $groupimportbutton='';
118: my $colspan='';
119:
120: $extrafield='';
121: my $diropendb = LONCAPA::tempdir() .
122: "$env{'user.domain'}_$env{'user.name'}_sel_res.db";
123: %hash = ();
124: {
125: my %dbfile;
126: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_WRITER(),0640)) {
127: if ($env{'form.launch'} eq '1') {
128: &start_fresh_session(\%dbfile);
129: }
130: while(my($key,$value)=each(%dbfile)) {
131: $hash{$key}=$value;
132: }
133: untie(%dbfile);
134: }
135: }
136: # - Evaluate actions from previous page (both cumulatively and chronologically)
137: if ($env{'form.catalogmode'} eq 'import' || $hash{'form.catalogmode'} eq 'import') {
138: &Apache::groupsort::update_actions_hash(\%hash);
139: }
140:
141: {
142: #Hijack lonindexer to verify a title and be close down.
143: if ($env{'form.launch'} eq '2') {
144: &Apache::loncommon::content_type($r,'text/html');
145: my $extra='';
146: if (defined($env{'form.titleelement'}) &&
147: $env{'form.titleelement'} ne '') {
148: my $verify_title = &Apache::lonnet::gettitle($env{'form.acts'});
149: # &Apache::lonnet::logthis("Hrrm $env{'form.acts'} -- $verify_title");
150: $verify_title=~s/'/\\'/g;
151: $extra='window.opener.document.forms["'.$env{'form.form'}.'"].elements["'.$env{'form.titleelement'}.'"].value=\''.$verify_title.'\';';
152: }
153: my $js = <<ENDSUBM;
154: <script type="text/javascript">
155: function load() {
156: window.opener.document.forms["$env{'form.form'}"]
157: .elements["$env{'form.element'}"]
158: .value='$env{'form.acts'}';
159: $extra
160: window.close();
161: }
162: </script>
163: ENDSUBM
164: $r->print(&Apache::loncommon::start_page(undef,$js,
165: {'only_body' =>1,
166: 'add_modal' => 1,
167: 'add_wishlist' => 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: $catalogmodefunctions;
364: function update_only(field) {
365: alert(field.name);
366: }
367: function checkAll() {
368: var numForms = document.forms.length;
369: for (i=0;i<numForms;i++) {
370: var numElements = document.forms[i].elements.length;
371: for (j=0;j<numElements;j++){
372: var fieldName = document.forms[i].elements[j].name;
373: if (fieldName == 'filelink') {
374: document.forms[i].elements[j].checked = true;
375: queue(document.forms[i].name);
376: }
377: }
378: }
379: }
380: function uncheckAll() {
381: var numForms = document.forms.length;
382: for (i=0;i<numForms;i++) {
383: var numElements = document.forms[i].elements.length;
384: for (j=0;j<numElements;j++){
385: var fieldName = document.forms[i].elements[j].name;
386: if (fieldName == 'filelink') {
387: document.forms[i].elements[j].checked = false;
388: queue(document.forms[i].name);
389: }
390: }
391: }
392: }
393:
394: function openWindow(url, wdwName, w, h, toolbar,scrollbar,locationbar) {
395: var xpos = (screen.width-w)/2;
396: xpos = (xpos < 0) ? '0' : xpos;
397: var ypos = (screen.height-h)/2-30;
398: ypos = (ypos < 0) ? '0' : ypos;
399: var options = "width=" + w + ",height=" + h + ",screenx="+xpos+",screeny="+ypos+",";
400: options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
401: options += "menubar=no,toolbar="+toolbar+",location="+locationbar+",directories=no";
402: var newWin = window.open(url, wdwName, options);
403: newWin.focus();
404: }
405:
406: function gothere(val) {
407: window.location=val+'?acts='+document.forms.fileattr.acts.value$inhibit_menu;
408: }
409: // ]]>
410: </script>
411: ENDHEADER
412:
413: my ($headerdom)=($uri=~m{^/res/($match_domain)/});
414:
415: if ($env{'form.catalogmode'}) {
416: # "Popup mode"
417: $r->print(&Apache::loncommon::start_page('Browse published resources',$js,
418: {'only_body' => 1, 'add_wishlist'=>1, 'add_modal' =>1,
419: 'domain' => $headerdom,}));
420: } else {
421: # Only display page header and breadcrumbs in non-popup mode
422: &Apache::lonhtmlcommon::clear_breadcrumbs();
423: &Apache::lonhtmlcommon::add_breadcrumb({
424: 'text' => 'Browse published resources',
425: 'href' => '/res/'.$headerdom.'/?launch=1',
426: });
427: $r->print(&Apache::loncommon::start_page('Browse published resources',$js,
428: {'domain' => $headerdom,})
429: .&Apache::lonhtmlcommon::breadcrumbs()
430: );
431: }
432:
433: # ---------------------------------- get state of file types to be showing
434: if ($env{'form.only'}) {
435: $typeselect = $env{'form.only'};
436: } else {
437: $typeselect = '';
438: }
439:
440: # ---------------------------------- get state of file attributes to be showing
441: if ($env{'form.attrs'}) {
442: for (my $i=0; $i<=16; $i++) {
443: delete $hash{'display_attrs_'.$i};
444: if ($env{'form.attr'.$i} == 1) {
445: $attrchk[$i] = 'checked';
446: $hash{'display_attrs_'.$i} = 1;
447: }
448: }
449: } else {
450: for (my $i=0; $i<=16; $i++) {
451: $attrchk[$i] = 'checked="checked"' if $hash{'display_attrs_'.$i} == 1;
452: }
453: }
454:
455: my @file_categories = &Apache::loncommon::filecategories();
456: my %select_file_categories;
457: my @select_form_order = ('');
458: $select_file_categories{''} = &mt('All file types');
459: foreach my $cat (@file_categories) {
460: my $types = join(",",&Apache::loncommon::filecategorytypes($cat));
461: $select_file_categories{$types} = &mt($cat);
462: push(@select_form_order,$types);
463: }
464: $select_file_categories{'select_form_order'} = \@select_form_order;
465: my $onchange = 'this.form.submit();';
466: my $type_element=
467: &Apache::loncommon::select_form(
468: $typeselect,
469: 'only',
470: \%select_file_categories,$onchange);
471: my $type_selector = '<label>'.&mt('File Type Displayed: [_1]',
472: $type_element).'</label>';
473:
474: # ------------------------------- output state of file attributes to be showing
475: # All versions has to the last item
476: # since it does not take an extra col
477: my %lt=&Apache::lonlocal::texthash(
478: 'av' => 'All versions',
479: 'ud' => 'Update Display',
480: 'pr' => 'Problems',
481: 'gr' => 'Graphics',
482: 'at' => 'All types',
483: 'hd' => 'Display Options'
484: );
485: my @disp_order = ('0','4','5','6','13','1','2','3','10','14','8','11','7','12','15','16');
486: my %disp_options = &Apache::lonlocal::texthash (
487: 0 => 'Title',
488: 4 => 'Author',
489: 5 => 'Keywords',
490: 6 => 'Language',
491: 13 => 'Notes',
492: 1 => 'Size',
493: 2 => 'Last access',
494: 3 => 'Last modified',
495: 10 => 'Source Available',
496: 14 => 'Abstract',
497: 8 => 'Statistics',
498: 11 => 'Linked/Related Resources',
499: 7 => 'Show resource',
500: 12 => 'Subject',
501: 15 => 'Grade Level',
502: 16 => 'Standards',
503: );
504: my $cell = 0;
505: my $numinrow = 4;
506: $r->print('
507: <form method="post" name="fileattr" action="'.$uri.'" enctype="application/x-www-form-urlencoded">
508: <fieldset>
509: <legend>'.$lt{'hd'}.'</legend>
510: <table style=" border-collapse: collapse; border-style: none;">'."\n");
511: foreach my $item (@disp_order) {
512: my $style = 'padding-left: 12px; padding-right: 8px;';
513: if ($cell%$numinrow == 0) {
514: $r->print('<tr>');
515: }
516: $cell ++;
517: if ($cell > 3 * $numinrow) {
518: $style .= ' padding-bottom: 6px;';
519: }
520: if (defined($disp_options{$item})) {
521: $r->print('<td style="'.$style.'"><span class="LC_nobreak">'.
522: '<label><input type="checkbox" name="attr'.$item.'" value="1" '.
523: $attrchk[$item].' onclick="this.form.submit();" /> '.$disp_options{$item}.
524: '</label></span></td>'."\n");
525: }
526: if ($cell > 1 && $cell%$numinrow == 0) {
527: $r->print('</tr>');
528: }
529: }
530: $r->print(<<END);
531: <tr>
532: <td style="font-style: italic; border-top: 1px solid black; padding-top: 6px">
533: <label><input type="checkbox" name="attr9" value="1" $attrchk[9] onclick="this.form.submit();" /> $lt{'av'}</label>
534: </td>
535: <td colspan="3" style="padding-left:8px; padding-top: 4px; font-style: italic; border-top: 1px solid black; padding-top: 8px">$type_selector</td>
536: </tr>
537: </table>
538: <input type="hidden" name="attrs" value="1" />
539: </fieldset>
540: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
541: <input type="hidden" name="acts" value="" />
542: $closebutton $groupimportbutton
543: END
544: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
545:
546: # -------------- Filter out sequence containment in crumbs and "recent folders"
547: my $storeuri=$uri;
548: $storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
549: $storeuri=~s/\/+/\//g;
550: # ---------------------------------------------------------------- Bread crumbs
551: $r->print(
552: '<p>'
553: .&Apache::lonhtmlcommon::crumbs(
554: $storeuri,
555: '',
556: '',
557: (($env{'form.catalogmode'} eq 'import')?
558: 'document.forms.fileattr':''))
559: .'<br />'
560: .&Apache::lonhtmlcommon::select_recent(
561: 'residx',
562: 'resrecent',
563: '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();')
564: .'</p>'
565: );
566: # -------------------------------------------------------- Resource Home Button
567: my $reshome=$env{'course.'.$env{'request.course.id'}.'.reshome'};
568: if ($reshome) {
569: $r->print("<span class=\"LC_fontsize_large\"><a href='");
570: if ($env{'form.catalogmode'} eq 'import') {
571: $r->print('javascript:document.forms.fileattr.action="'.&Apache::loncommon::inhibit_menu_check($reshome).'";document.forms.fileattr.submit();');
572: } else {
573: $r->print($reshome);
574: }
575: $r->print("'>".&mt('Home').'</a></span>');
576: }
577: $r->print('</form>');
578: # ------------------------------------------------------ Remember where we were
579: &Apache::loncommon::storeresurl($storeuri);
580: &Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
581: # -------------------------------------------------- Check All and Uncheck all
582: if ($env{'form.catalogmode'} eq 'import') {
583: $r->print('<p><input type="button" value="'.&mt("Check All").'" id="checkallbutton" onclick="javascript:checkAll()" />');
584: $r->print('<input type="button" value="'.&mt("Uncheck All").'" id="uncheckallbutton" onclick="javascript:uncheckAll()" /></p>');
585: }
586: # ----------------- output starting row to the indexed file/directory hierarchy
587: #$r->print(&initdebug());
588: #$r->print(&writedebug("Omit:@Omit")) if (@Omit);
589: #$r->print(&writedebug("Only:@Only")) if (@Only);
590: $r->print(&Apache::loncommon::start_data_table("LC_tableBrowseRes")
591: .&Apache::loncommon::start_data_table_header_row());
592: $r->print("<th $colspan>".&mt('Name')."</th>\n");
593: $r->print("<th></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: $r->print(&mt("Up")."</a></form></td><td>$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: $r->print("</form></td><td>$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: # Wishlistlink
1008: $r->print('</form></td><td><a href="javascript:;" '.
1009: 'title="'.&mt('Save a link for this folder in your personal Stored Links repository').'" '.
1010: 'onclick="set_wishlistlink('."'$plainname','$startdir$listname'".')">'.
1011: '<img class="LC_icon" src="/res/adm/pages/wishlist.png" '.
1012: 'alt="'.&mt('save in Stored Links').'" style="width:22px;"/></a>'.$tabtag);
1013: $r->print(&Apache::loncommon::end_data_table_row());
1014: return OK;
1015: }
1016:
1017: # display file
1018: if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
1019: my $title;
1020: my $filelink = $pathprefix.$filecom[0];
1021: if ($hash{'display_attrs_0'} == 1) {
1022: $title = &Apache::lonnet::gettitle($filelink);
1023: }
1024: my @file_ext = split (/\./,$listname);
1025: my $curfext = $file_ext[-1];
1026: if (@Omit) {
1027: foreach (@Omit) { return OK if (lc($curfext) eq $_); }
1028: }
1029: if (@Only) {
1030: my $skip = 1;
1031: foreach (@Only) { $skip = 0 if (lc($curfext) eq $_); }
1032: return OK if ($skip > 0);
1033: }
1034: # Set the icon for the file
1035: my $iconname = &Apache::loncommon::icon($listname);
1036: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">);
1037: $r->print(&Apache::loncommon::start_data_table_row()); #SB valign="$valign" ?!?
1038: $r->print('<td class="LC_middle LC_nobreak">');
1039:
1040: if ($env{'form.catalogmode'} eq 'interactive') {
1041: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
1042: $r->print("<a href=\"javascript:select_data(\'",
1043: $quotable_filelink,"')\">");
1044: $r->print("<img alt=\"\" src='",$iconpath,"select.gif' class='LC_icon' /></a>".
1045: "\n");
1046: $r->print('</td><td class="LC_middle">');
1047: } elsif ($env{'form.catalogmode'} eq 'import') {
1048: $r->print("<form name='form$fnum' action=''>\n");
1049: $r->print("<input type='checkbox' name='filelink"."' ".
1050: "value='$filelink' onclick='".
1051: "javascript:queue(\"form$fnum\")' ");
1052: if ($hash{'store_'.$filelink}) {
1053: $r->print("checked");
1054: }
1055: $r->print(" />\n");
1056: $r->print('</form></td><td class="LC_middle">');
1057: $hash{"pre_${fnum}_link"}=$filelink;
1058: $hash{"pre_${fnum}_title"}=$title;
1059: if (!$hash{"pre_${fnum}_title"}) {
1060: $hash{"pre_${fnum}_title"} = 'Not_retrieved';
1061: }
1062: $fnum++;
1063: }
1064: # Form to open or close sequences
1065: if ($filelink=~/\.(page|sequence)$/) {
1066: my $curdir = $startdir.$filecom[0].'/';
1067: &begin_form($r,$curdir);
1068: $indent--;
1069: }
1070: # General indentation
1071: my $count = 0;
1072: while ($count < $indent) {
1073: $r->print('<img alt="" src="'.$iconpath.'whitespace_21.gif"
1074: class="LC_icon" />');
1075: $count++;
1076: }
1077: # Sequence open/close icon
1078: if ($filelink=~/\.(page|sequence)$/) {
1079: my $curdir = $startdir.$filecom[0].'/';
1080: my $anchor = $curdir;
1081: $anchor =~ s/\W//g;
1082: $r->print ('<input type="hidden" name="acts" value="" />');
1083: $r->print ('<a name="'.$anchor.'"></a>');
1084: $r->print ('<a href="#" onclick="document.dirpath'.($dnum-1).'.submit()">');
1085: $r->print ('<img src="'.$iconpath.'arrow.'.($nowOpen ? "open" : "closed" ).
1086: '.gif" class="LC_fileicon"');
1087: $r->print (' alt="'.$msg.'" /></a>'.
1088: "\n");
1089: }
1090: # Filetype icons
1091: $r->print("<img alt=\"\" src='$iconname' class='LC_fileicon' />\n");
1092: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
1093:
1094: $r->print (" <a href=\"javascript:openMyModal('".$quotable_filelink."?inhibitmenu=yes',500,500,'yes');\">$listname</a> ");
1095: $quotable_filelink = &Apache::loncommon::escape_single($filelink.'.meta');
1096: &Apache::loncommon::inhibit_menu_check(\$quotable_filelink);
1097: $r->print (" (<a href=\"javascript:openMyModal('".$quotable_filelink."?inhibitmenu=yes',500,500,'yes');\">".&mt('metadata')."</a>) ");
1098: # Close form to open/close sequence
1099: if ($filelink=~/\.(page|sequence)$/) {
1100: $r->print('</form>');
1101: }
1102: $r->print("</td>\n");
1103: # Wishlistlink
1104: $r->print('<td><a href="javascript:;" title="'.&mt('Save a link for this resource in your personal Stored Links repository').'" '.
1105: 'onclick="set_wishlistlink('."'".&Apache::lonnet::gettitle($filelink).
1106: "','$startdir$listname'".')">'.
1107: '<img class="LC_icon" src="/res/adm/pages/wishlist.png" '.
1108: 'alt="'.&mt('save in Stored Links').'" style="width:22px;"/></a></td>');
1109: if ($hash{'display_attrs_0'} == 1) {
1110: $r->print('<td> '.($title eq '' ? ' ' : $title).
1111: ' </td>'."\n");
1112: }
1113: $r->print('<td class="LC_right"> ',
1114: $filecom[8]," </td>\n")
1115: if $hash{'display_attrs_1'} == 1;
1116: $r->print('<td class="LC_nobreak"> '.
1117: (&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
1118: if $hash{'display_attrs_2'} == 1;
1119: $r->print('<td class="LC_nobreak"> '.
1120: (&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
1121: if $hash{'display_attrs_3'} == 1;
1122:
1123: if ($hash{'display_attrs_4'} == 1) {
1124: my $author = &Apache::lonnet::metadata($filelink,'author');
1125: $r->print('<td class="LC_nobreak"> '.($author eq '' ? ' ' : $author).
1126: " </td>\n");
1127: }
1128: if ($hash{'display_attrs_5'} == 1) {
1129: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1130: # $keywords = ' ' if (!$keywords);
1131: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1132: " </td>\n");
1133: }
1134:
1135: if ($hash{'display_attrs_6'} == 1) {
1136: my $lang = &Apache::lonnet::metadata($filelink,'language');
1137: $lang = &Apache::loncommon::languagedescription($lang);
1138: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1139: " </td>\n");
1140: }
1141: if ($hash{'display_attrs_8'} == 1) {
1142: # statistics
1143: &dynmetaread($filelink);
1144: $r->print("<td>");
1145:
1146: for (qw(count course stdno avetries difficulty disc clear technical
1147: correct helpful depth)) {
1148:
1149: dynmetaprint($r,$filelink,$_);
1150: }
1151:
1152: $r->print(" </td>\n");
1153:
1154: }
1155: if ($hash{'display_attrs_10'} == 1) {
1156: my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
1157: if($source eq 'open') {
1158: my $sourcelink = &Apache::lonsource::make_link($filelink,$listname);
1159: my $quotable_sourcelink = &Apache::loncommon::escape_single($sourcelink);
1160: &Apache::loncommon::inhibit_menu_check(\$quotable_sourcelink);
1161: $r->print('<td>'."<a href=\"javascript:openWindow('"
1162: .$quotable_sourcelink.
1163: "', 'previewsource', '700', '700', 'no', 'yes','yes');\"".
1164: " target=\"_self\">".&mt('Source Code')."</a> "."</td>\n");
1165: } else { #A cuddled else. :P
1166: $r->print("<td> </td>\n");
1167: }
1168: }
1169: if ($hash{'display_attrs_11'} == 1) {
1170: # links
1171: &dynmetaread($filelink);
1172: $r->print('<td>');
1173: &coursecontext($r,$filelink);
1174: for (qw(goto_list comefrom_list sequsage_list dependencies course_list)) {
1175: dynmetaprint($r,$filelink,$_);
1176: }
1177: $r->print('</td>');
1178: }
1179:
1180:
1181:
1182: if ($hash{'display_attrs_7'} == 1) {
1183: # Show resource
1184: my $output=&showpreview($filelink);
1185: $r->print('<td class="LC_fontsize_medium">'.($output eq '' ? ' ':$output).
1186: " </td>\n");
1187: }
1188:
1189: if ($hash{'display_attrs_12'} == 1) {
1190: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1191: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1192: " </td>\n");
1193: }
1194:
1195: if ($hash{'display_attrs_13'} == 1) {
1196: my $notes = &Apache::lonnet::metadata($filelink,'notes');
1197: $r->print('<td> '.($notes eq '' ? ' ' : $notes).
1198: " </td>\n");
1199: }
1200:
1201: if ($hash{'display_attrs_14'} == 1) {
1202: my $abstract = &Apache::lonnet::metadata($filelink,'abstract');
1203: $r->print('<td> '.($abstract eq '' ? ' ' : $abstract).
1204: " </td>\n");
1205: }
1206:
1207: if ($hash{'display_attrs_15'} == 1) {
1208: my $gradelevel = &Apache::lonnet::metadata($filelink,'gradelevel');
1209: $r->print('<td> '.($gradelevel eq '' ? ' ' : $gradelevel).
1210: " </td>\n");
1211: }
1212:
1213: if ($hash{'display_attrs_16'} == 1) {
1214: my $standards = &Apache::lonnet::metadata($filelink,'standards');
1215: $r->print('<td> '.($standards eq '' ? ' ' : $standards).
1216: " </td>\n");
1217: }
1218:
1219: $r->print(&Apache::loncommon::end_data_table_row());
1220: }
1221:
1222:
1223:
1224: # -- display directory
1225: if ($fnptr == $dirptr) {
1226: my $curdir = $startdir.$filecom[0].'/';
1227: my $anchor = $curdir;
1228: $anchor =~ s/\W//g;
1229: #SB $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
1230: $r->print(&Apache::loncommon::start_data_table_row()); # SB: bgcolor suggestion: darkgrey ("LC_info_row"?!?)
1231: # $r->print('<tr class="LC_info_row">');
1232: $r->print($extrafield.'<td class="LC_middle LC_nobreak">');
1233: &begin_form ($r,$curdir);
1234: my $indentm1 = $indent-1;
1235: my $count = 0;
1236: while ($count < $indentm1) {
1237: $r->print ('<img alt="" src="',$iconpath
1238: ,'whitespace_21.gif" class="LC_icon" />');
1239: $count++;
1240: }
1241: $r->print ('<input type="hidden" name="acts" value="" />');
1242: $r->print ('<a name="'.$anchor.'"></a>');
1243: $r->print ('<a href="#" onclick="document.dirpath'.($dnum-1).'.submit()"><img src="'.$iconpath.
1244: 'arrow.'.($nowOpen ? "open" : "closed" ).'.gif"');
1245: $r->print (' alt="'.$msg.'" class="LC_fileicon" /></a>'.
1246: "\n");
1247: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
1248:
1249: my $location = &Apache::loncommon::lonhttpdurl("/adm/lonIcons");
1250: my $icon = "navmap.folder.".($nowOpen ? "open":"closed").'.gif';
1251: $r->print ('<a href="javascript:gothere('
1252: ."'$quotable_curdir'".');">'
1253: .'<img class="LC_fileicon" alt="'.&mt('Open Folder').'" src="'
1254: .$location.'/'.$icon.'" />'
1255: ."\n");
1256: $r->print ("$listname</a></form>");
1257: # Wishlistlink
1258: $r->print('</td><td><a href="javascript:;" '.
1259: 'title="'.&mt('Save a link for this folder in Stored Links').'" '.
1260: 'onclick="set_wishlistlink('."'$listname','$startdir$listname'".')">'.
1261: '<img class="LC_icon" src="/res/adm/pages/wishlist.png" '.
1262: 'alt="'.&mt('save in Stored Links').'" style="width:22px;"/></a></td>');
1263: # Attributes
1264: my $filelink = $startdir.$filecom[0].'/default';
1265:
1266: if ($hash{'display_attrs_0'} == 1) {
1267: my $title = &Apache::lonnet::gettitle($filelink);
1268: $r->print('<td> '.($title eq '' ? ' ' : $title).
1269: ' </td>'."\n");
1270: }
1271: $r->print('<td class="LC_right"> ',
1272: $filecom[8]," </td>\n")
1273: if $hash{'display_attrs_1'} == 1;
1274: $r->print('<td class="LC_break"> '.
1275: (&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
1276: if $hash{'display_attrs_2'} == 1;
1277: $r->print('<td class="LC_break"> '.
1278: (&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
1279: if $hash{'display_attrs_3'} == 1;
1280:
1281: if ($hash{'display_attrs_4'} == 1) {
1282: my $author = &Apache::lonnet::metadata($filelink,'author');
1283: $r->print('<td> '.($author eq '' ? ' ' : $author).
1284: " </td>\n");
1285: }
1286: if ($hash{'display_attrs_5'} == 1) {
1287: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1288: # $keywords = ' ' if (!$keywords);
1289: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1290: " </td>\n");
1291: }
1292: if ($hash{'display_attrs_6'} == 1) {
1293: my $lang = &Apache::lonnet::metadata($filelink,'language');
1294: $lang = &Apache::loncommon::languagedescription($lang);
1295: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1296: " </td>\n");
1297: }
1298:
1299: if ($hash{'display_attrs_8'} == 1) {
1300: $r->print('<td> </td>');
1301: }
1302: if ($hash{'display_attrs_10'} == 1) {
1303: $r->print('<td> </td>');
1304: }
1305: if ($hash{'display_attrs_7'} == 1) {
1306: $r->print('<td> </td>');
1307: }
1308: if ($hash{'display_attrs_11'} == 1) {
1309: $r->print('<td> </td>');
1310: }
1311: if ($hash{'display_attrs_12'} == 1) {
1312: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1313: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1314: " </td>\n");
1315: }
1316: if ($hash{'display_attrs_13'} == 1) {
1317: my $notes = &Apache::lonnet::metadata($filelink,'notes');
1318: $r->print('<td> '.($notes eq '' ? ' ' : $notes).
1319: " </td>\n");
1320: }
1321:
1322: if ($hash{'display_attrs_14'} == 1) {
1323: my $abstract = &Apache::lonnet::metadata($filelink,'abstract');
1324: $r->print('<td> '.($abstract eq '' ? ' ' : $abstract).
1325: " </td>\n");
1326: }
1327:
1328: if ($hash{'display_attrs_15'} == 1) {
1329: my $gradelevel = &Apache::lonnet::metadata($filelink,'gradelevel');
1330: $r->print('<td> '.($gradelevel eq '' ? ' ' : $gradelevel).
1331: " </td>\n");
1332: }
1333:
1334: if ($hash{'display_attrs_16'} == 1) {
1335: my $standards = &Apache::lonnet::metadata($filelink,'standards');
1336: $r->print('<td> '.($standards eq '' ? ' ' : $standards).
1337: " </td>\n");
1338: }
1339:
1340:
1341: $r->print(&Apache::loncommon::end_data_table_row());
1342: }
1343:
1344: }
1345:
1346: sub coursecontext {
1347: my ($r,$filelink)=@_;
1348: my $filesymb=&Apache::lonnet::symbread($filelink);
1349: if ($filesymb) {
1350: my ($map,$index,$resource)=&Apache::lonnet::decode_symb($filesymb);
1351: $r->print(&mt('Already in this course:<br />[_1] in folder/map [_2].<br />',
1352: &Apache::lonnet::gettitle($resource),
1353: &Apache::lonnet::gettitle($map)));
1354: }
1355: }
1356:
1357: sub showpreview {
1358: my ($filelink)=@_;
1359: if ($filelink=~m-^(/ext/|https?://)-) {
1360: return &mt('External Resource, preview not enabled');
1361: }
1362: my ($curfext)=($filelink=~/\.(\w+)$/);
1363: my $output='';
1364: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
1365: if ($embstyle eq 'ssi') {
1366: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
1367: '.tmp';
1368: if ((!$env{'form.updatedisplay'}) &&
1369: (-e $cache)) {
1370: open(FH,$cache);
1371: $output=join("\n",<FH>);
1372: close(FH);
1373: } else {
1374: # In update display mode, remove old cache. This is done to retroactively
1375: # clean up course context renderings.
1376: if (-e $cache) {
1377: unlink($cache);
1378: }
1379: $output=&Apache::lonnet::ssi_body($filelink);
1380: # Is access denied? Don't render, don't store
1381: if ($output=~/LONCAPAACCESSCONTROLERRORSCREEN/s) {
1382: $output='';
1383: # Was this rendered in course content? Don't store
1384: } elsif (!&Apache::lonnet::symbread($filelink)) {
1385: open(FH,">$cache");
1386: print FH $output;
1387: close(FH);
1388: }
1389: }
1390: } elsif ($embstyle eq 'img') {
1391: $output='<img alt="'.&mt('Preview').'" src="'.$filelink.'" />';
1392: } elsif ($filelink=~m{^/res/($match_domain)/($match_username)/}) {
1393: $output='<img alt="'.&mt('Preview').'" src="http://'.
1394: &Apache::lonnet::hostname(&Apache::lonnet::homeserver($2,$1)).
1395: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1396: }
1397: return $output;
1398: }
1399:
1400: sub dynmetaprint {
1401: my ($r,$filelink,$item)=@_;
1402: if ($dynhash{$filelink}->{$item}) {
1403: $r->print("\n<br />".$fieldnames{$item}.': '.
1404: &Apache::lonmeta::prettyprint($item,
1405: $dynhash{$filelink}->{$item},
1406: (($env{'form.catalogmode'} ne 'import')?'preview':''),
1407: '',
1408: (($env{'form.catalogmode'} eq 'import')?'document.forms.fileattr':''),1));
1409: }
1410: }
1411:
1412: # ------------------- prints the beginning of a form for directory or file link
1413: sub begin_form {
1414: my ($r,$uri) = @_;
1415: my $anchor = $uri;
1416: $anchor =~ s/\W//g;
1417: $uri=&Apache::loncommon::escape_single($uri);
1418: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1419: '#'.$anchor.
1420: '" onsubmit="return rep_dirpath(\''.$dnum.'\''.
1421: ',document.forms.fileattr.acts.value)" '.
1422: 'enctype="application/x-www-form-urlencoded">'."\n");
1423: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'" />'.
1424: "\n");
1425: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n");
1426: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
1427: $dnum++;
1428: }
1429:
1430: # --------- settings whenever the user causes the indexer window to be launched
1431: sub start_fresh_session {
1432: my ($hash) = @_;
1433: delete $hash->{'form.catalogmode'};
1434: delete $hash->{'form.mode'};
1435: delete $hash->{'form.form'};
1436: delete $hash->{'form.element'};
1437: delete $hash->{'form.omit'};
1438: delete $hash->{'form.only'};
1439: foreach (keys %{$hash}) {
1440: delete $hash->{$_} if (/^(pre_|store)/);
1441: }
1442: }
1443:
1444: # ------------------------------------------------------------------- setvalues
1445: sub setvalues {
1446: # setvalues is used in registerurl to synchronize the database
1447: # hash and environment hashes
1448: my ($H1,$h1key,$H2,$h2key) =@_;
1449: #
1450: if (exists $H2->{$h2key}) {
1451: $H1->{$h1key} = $H2->{$h2key};
1452: } elsif (exists $H1->{$h1key}) {
1453: $H2->{$h2key} = $H1->{$h1key};
1454: }
1455: }
1456:
1457: 1;
1458:
1459: sub cleanup {
1460: if (tied(%hash)){
1461: &Apache::lonnet::logthis('Cleanup indexer: hash');
1462: }
1463: return OK;
1464: }
1465:
1466:
1467:
1468:
1469:
1470: =head1 NAME
1471:
1472: Apache::lonindexer - mod_perl module for cross server filesystem browsing
1473:
1474: =head1 SYNOPSIS
1475:
1476: Invoked by /etc/httpd/conf/srm.conf:
1477:
1478: <LocationMatch "^/res.*/$">
1479: SetHandler perl-script
1480: PerlHandler Apache::lonindexer
1481: </LocationMatch>
1482:
1483: =head1 INTRODUCTION
1484:
1485: This module enables a scheme of browsing across a cross server.
1486:
1487: This is part of the LearningOnline Network with CAPA project
1488: described at http://www.lon-capa.org.
1489:
1490: =head1 HANDLER SUBROUTINE
1491:
1492: This routine is called by Apache and mod_perl.
1493:
1494: =over 4
1495:
1496: =item *
1497:
1498: read in machine configuration variables
1499:
1500: =item *
1501:
1502: see if called from an interactive mode
1503:
1504: =item *
1505:
1506: refresh environment with user database values (in %hash)
1507:
1508: =item *
1509:
1510: define extra fields and buttons in case of special mode
1511:
1512: =item *
1513:
1514: set catalogmodefunctions to have extra needed javascript functionality
1515:
1516: =item *
1517:
1518: print header
1519:
1520: =item *
1521:
1522: evaluate actions from previous page (both cumulatively and chronologically)
1523:
1524: =item *
1525:
1526: output title
1527:
1528: =item *
1529:
1530: get state of file attributes to be showing
1531:
1532: =item *
1533:
1534: output state of file attributes to be showing
1535:
1536: =item *
1537:
1538: output starting row to the indexed file/directory hierarchy
1539:
1540: =item *
1541:
1542: read in what directories have previously been set to "open"
1543:
1544: =item *
1545:
1546: if not at top level, provide an uplink arrow
1547:
1548: =item *
1549:
1550: recursively go through all the directories and output as appropriate
1551:
1552: =item *
1553:
1554: information useful for group import
1555:
1556: =item *
1557:
1558: end the tables
1559:
1560: =item *
1561:
1562: end the output and return
1563:
1564: =back
1565:
1566: =head1 OTHER SUBROUTINES
1567:
1568: =over 4
1569:
1570: =item *
1571:
1572: scanDir - recursive scan of a directory
1573:
1574: =item *
1575:
1576: get_list - get complete matched list based on the uri (returns an array)
1577:
1578: =item *
1579:
1580: match_ext - filters out files based on extensions (returns an array)
1581:
1582: =item *
1583:
1584: display_line - displays one line in appropriate table format
1585:
1586: =item *
1587:
1588: begin_form - prints the beginning of a form for directory or file link
1589:
1590: =item *
1591:
1592: start_fresh_session - settings whenever the user causes the indexer window
1593: to be launched
1594:
1595: =back
1596:
1597: =cut
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