1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.203 2009/12/02 18:33:27 bisitz Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: ###
29:
30: ###############################################################################
31: ## ##
32: ## ORGANIZATION OF THIS PERL MODULE ##
33: ## ##
34: ## 1. Description of functions ##
35: ## 2. Modules used by this module ##
36: ## 3. Choices for different output views (detailed, summary, xml, etc) ##
37: ## 4. BEGIN block (to be run once after compilation) ##
38: ## 5. Handling routine called via Apache and mod_perl ##
39: ## 6. Other subroutines ##
40: ## ##
41: ###############################################################################
42:
43: package Apache::lonindexer;
44:
45: # ------------------------------------------------- modules used by this module
46: use strict;
47: use Apache::lonnet;
48: use Apache::loncommon();
49: use Apache::lonhtmlcommon();
50: use Apache::lonsequence();
51: use Apache::Constants qw(:common);
52: use Apache::lonmeta;
53: use Apache::File;
54: use Apache::lonlocal;
55: use Apache::lonsource();
56: use Apache::groupsort();
57: use GDBM_File;
58: use LONCAPA qw(:match);
59:
60: # ---------------------------------------- variables used throughout the module
61: my %hash; # global user-specific gdbm file
62: my %dirs; # keys are directories, values are the open/close status
63: my %language; # has the reference information present in language.tab
64: my %dynhash; # hash of hashes for dynamic metadata
65: my %dynread; # hash of directories already read for dynamic metadata
66: my %fieldnames; # Metadata fieldnames
67: # ----- Values which are set by the handler subroutine and are accessible to
68: # ----- other methods.
69: my $extrafield; # default extra table cell
70: my $fnum; # file counter
71: my $dnum; # directory counter
72:
73: # ----- Used to include or exclude files with certain extensions.
74: my @Only = ();
75: my @Omit = ();
76:
77:
78:
79:
80: # ----------------------------- Handling routine called via Apache and mod_perl
81: sub handler {
82: my $r = shift;
83: my $c = $r->connection();
84: &Apache::loncommon::content_type($r,'text/html');
85: &Apache::loncommon::no_cache($r);
86: $r->send_http_header;
87: return OK if $r->header_only;
88: $fnum=0;
89: $dnum=0;
90:
91: # Deal with stupid global variables (is there a way around making
92: # these global to this package? It is just so wrong....)
93: undef (@Only);
94: undef (@Omit);
95: %fieldnames=&Apache::lonmeta::fieldnames();
96:
97: # ------------------------------------- read in machine configuration variables
98: my $iconpath= $r->dir_config('lonIconsURL') . "/";
99: my $domain = $r->dir_config('lonDefDomain');
100: my $role = $r->dir_config('lonRole');
101: my $loadlim = $r->dir_config('lonLoadLim');
102: my $servadm = $r->dir_config('lonAdmEMail');
103: my $sysadm = $r->dir_config('lonSysEMail');
104: my $lonhost = $r->dir_config('lonHostID');
105: my $tabdir = $r->dir_config('lonTabDir');
106:
107: #SB my $fileclr='#ffffe6';
108: my $line;
109: my (@attrchk,@openpath,$typeselect);
110: my $uri=$r->uri;
111:
112: # -------------------------------------- see if called from an interactive mode
113: # Get the parameters from the query string
114: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
115: ['catalogmode','launch','acts','mode','form','element',
116: 'only','omit','titleelement']);
117: #-------------------------------------------------------------------
118: my $closebutton='';
119: my $groupimportbutton='';
120: my $colspan='';
121:
122: $extrafield='';
123: my $diropendb =
124: "/home/httpd/perl/tmp/$env{'user.domain'}_$env{'user.name'}_sel_res.db";
125: %hash = ();
126: {
127: my %dbfile;
128: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_WRITER(),0640)) {
129: if ($env{'form.launch'} eq '1') {
130: &start_fresh_session(\%dbfile);
131: }
132: while(my($key,$value)=each(%dbfile)) {
133: $hash{$key}=$value;
134: }
135: untie(%dbfile);
136: }
137: }
138: # - Evaluate actions from previous page (both cumulatively and chronologically)
139: if ($env{'form.catalogmode'} eq 'import' || $hash{'form.catalogmode'} eq 'import') {
140: &Apache::groupsort::update_actions_hash(\%hash);
141: }
142:
143: {
144: #Hijack lonindexer to verify a title and be close down.
145: if ($env{'form.launch'} eq '2') {
146: &Apache::loncommon::content_type($r,'text/html');
147: my $extra='';
148: if (defined($env{'form.titleelement'}) &&
149: $env{'form.titleelement'} ne '') {
150: my $verify_title = &Apache::lonnet::gettitle($env{'form.acts'});
151: # &Apache::lonnet::logthis("Hrrm $env{'form.acts'} -- $verify_title");
152: $verify_title=~s/'/\\'/g;
153: $extra='window.opener.document.forms["'.$env{'form.form'}.'"].elements["'.$env{'form.titleelement'}.'"].value=\''.$verify_title.'\';';
154: }
155: my $js = <<ENDSUBM;
156: <script type="text/javascript">
157: function load() {
158: window.opener.document.forms["$env{'form.form'}"]
159: .elements["$env{'form.element'}"]
160: .value='$env{'form.acts'}';
161: $extra
162: window.close();
163: }
164: </script>
165: ENDSUBM
166: $r->print(&Apache::loncommon::start_page(undef,$js,
167: {'only_body' =>1,
168: 'add_entries' =>
169: {'onload' => "load();"},}
170: ).
171: &Apache::loncommon::end_page());
172: return OK;
173: }
174:
175: # -------------------- refresh environment with user database values (in %hash)
176: &setvalues(\%hash,'form.catalogmode',\%env,'form.catalogmode' );
177:
178: # --------------------- define extra fields and buttons in case of special mode
179: if ($env{'form.catalogmode'} eq 'interactive') {
180: #SB $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
181: $extrafield='<td class="LC_bottom">'.
182: '<img alt="" src="'.$iconpath.'whitespace1.gif"'.
183: ' class="LC_icon" /></td>';
184: $colspan=" colspan='2' ";
185: my $cl=&mt('Close');
186: $closebutton=<<END;
187: <input type="button" name="close" value='$cl' onclick="self.close()" />
188: END
189: }
190: elsif ($env{'form.catalogmode'} eq 'import') {
191: #SB $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
192: $extrafield='<td class="LC_bottom">'.
193: '<img alt="" src="'.$iconpath.'whitespace1.gif"'.
194: ' class="LC_icon" /></td>';
195: $colspan=" colspan='2' ";
196: my $cl=&mt('Close');
197: my $gi=&mt('Import');
198: $closebutton=<<END;
199: <input type="button" name="close" value='$cl' onclick="self.close()" />
200: END
201: $groupimportbutton=<<END;
202: <input type="button" name="groupimport" value='$gi'
203: onclick="javascript:select_group()" />
204: END
205: }
206: # Additions made by Matthew to make the browser a little easier to deal
207: # with in the future.
208: #
209: # $mode (at this time) indicates if we are in edit mode.
210: # $form is the name of the form that the URL is placed when the
211: # selection is made.
212: # $element is the name of the element in $formname which receives
213: # the URL.
214: #&Apache::lonxml::debug('Checking mode, form, element');
215: &setvalues(\%hash,'form.mode' ,\%env,'form.mode' );
216: &setvalues(\%hash,'form.form' ,\%env,'form.form' );
217: &setvalues(\%hash,'form.element' ,\%env,'form.element');
218: &setvalues(\%hash,'form.titleelement',\%env,'form.titleelement');
219: &setvalues(\%hash,'form.only' ,\%env,'form.only' );
220: &setvalues(\%hash,'form.omit' ,\%env,'form.omit' );
221:
222: # Deal with 'omit' and 'only'
223: if (exists $env{'form.omit'}) {
224: @Omit = split(',',$env{'form.omit'});
225: }
226: if (exists $env{'form.only'}) {
227: @Only = split(',',$env{'form.only'});
228: }
229:
230: my $mode = $env{'form.mode'};
231: my ($form,$element,$titleelement);
232: if ($mode eq 'edit' || $mode eq 'parmset') {
233: $form = $env{'form.form'};
234: $element = $env{'form.element'};
235: $titleelement = $env{'form.titleelement'};
236: }
237: #&Apache::lonxml::debug("mode=$mode form=$form element=$element titleelement=$titleelement");
238: # ------ set catalogmodefunctions to have extra needed javascript functionality
239: my $catalogmodefunctions='';
240: if ($env{'form.catalogmode'} eq 'interactive' or
241: $env{'form.catalogmode'} eq 'import') {
242: # The if statement below sets us up to use the old version
243: # by default (ie. if $mode is undefined). This is the easy
244: # way out. Hopefully in the future I'll find a way to get
245: # the calls dealt with in a more comprehensive manner.
246:
247: #
248: # There is now also mode "simple", which is for the simple version of the rat
249: #
250: #
251: if (!defined($mode) || ($mode ne 'edit' && $mode ne 'parmset')) {
252: my $location = "/adm/groupsort?&inhibitmenu=yes&catalogmode=import&";
253: $location .= "mode=".$mode."&";
254: $location .= "acts=";
255: $catalogmodefunctions=<<"END";
256: function select_data(url) {
257: changeURL(url);
258: self.close();
259: }
260: function select_group() {
261: window.location="$location"+document.forms.fileattr.acts.value;
262: }
263: function changeURL(val) {
264: if (opener.inf) {
265: if (opener.inf.document.forms.resinfo.elements.u) {
266: opener.inf.document.forms.resinfo.elements.u.value=val;
267: }
268: }
269: }
270: END
271: } elsif ($mode eq 'edit') { # we are in 'edit' mode
272: my $location = "/adm/groupsort?catalogmode=interactive&";
273: $location .= "form=$form&element=$element&mode=edit&acts=";
274: $catalogmodefunctions=<<END;
275: // mode = $mode
276: function select_data(url) {
277: var location = "/res/?launch=2&form=$form&element=$element&titleelement=$titleelement&acts=" + url;
278: window.location=location;
279: if (window.opener.document.forms["$form"].elements["$element"].value != url) {
280: window.opener.unClean();
281: }
282: }
283: function select_group() {
284: window.location="$location"+document.forms.fileattr.acts.value;
285: }
286:
287: function changeURL(val) {
288: if (window.opener.document) {
289: window.opener.document.forms["$form"].elements["$element"].value=val;
290: } else {
291: alert("The file you selected is: "+val);
292: }
293: }
294: END
295: if (!$titleelement) {
296: $catalogmodefunctions.='function changeTitle(val) {}';
297: } else {
298: $catalogmodefunctions.=<<END;
299: function changeTitle(val) {
300: if (window.opener.document) {
301: window.opener.document.forms["$form"].elements["$titleelement"].value=val;
302: } else {
303: alert("The title of the file you selected is: "+val);
304: }
305: }
306: END
307: }
308: } elsif ($mode eq 'parmset') {
309: my $location = "/adm/groupsort?catalogmode=interactive&";
310: $location .= "form=$form&element=$element&mode=parmset&acts=";
311: $catalogmodefunctions=<<END;
312: // mode = $mode
313: function select_data(url) {
314: changeURL(url);
315: self.close();
316: }
317:
318: function select_group() {
319: window.location="$location"+document.forms.fileattr.acts.value;
320: }
321:
322: function changeURL(val) {
323: if (window.opener.document) {
324: var elementname = "$element"+"_value";
325: var checkboxname = "$element"+"_setparmval";
326: window.opener.document.forms["$form"].elements[elementname].value=val;
327: window.opener.document.forms["$form"].elements[checkboxname].checked=true;
328: } else {
329: alert("The file you selected is: "+val);
330: }
331: }
332:
333: END
334: }
335: }
336: $catalogmodefunctions.=<<END;
337: var acts='';
338: function rep_dirpath(suffix,val) {
339: eval("document.forms.dirpath"+suffix+".acts.value=val");
340: }
341: END
342: if ($env{'form.catalogmode'} eq 'import') {
343: $catalogmodefunctions.=<<END;
344: function queue(val) {
345: if (eval("document.forms."+val+".filelink.checked")) {
346: var l=val.length;
347: var v=val.substring(4,l);
348: document.forms.fileattr.acts.value+='1a'+v+'b';
349: }
350: else {
351: var l=val.length;
352: var v=val.substring(4,l);
353: document.forms.fileattr.acts.value+='0a'+v+'b';
354: }
355: }
356: END
357: }
358:
359: my $inhibit_menu = "+'&".&Apache::loncommon::inhibit_menu_check()."'";
360: # ---------------------------------------------------------------- Print Header
361:
362: my $js = <<"ENDHEADER";
363: <script type="text/javascript">
364: // <![CDATA[
365: $catalogmodefunctions;
366: function update_only(field) {
367: alert(field.name);
368: }
369: function checkAll() {
370: var numForms = document.forms.length;
371: for (i=0;i<numForms;i++) {
372: var numElements = document.forms[i].elements.length;
373: for (j=0;j<numElements;j++){
374: var fieldName = document.forms[i].elements[j].name;
375: if (fieldName == 'filelink') {
376: document.forms[i].elements[j].checked = true;
377: queue(document.forms[i].name);
378: }
379: }
380: }
381: }
382: function uncheckAll() {
383: var numForms = document.forms.length;
384: for (i=0;i<numForms;i++) {
385: var numElements = document.forms[i].elements.length;
386: for (j=0;j<numElements;j++){
387: var fieldName = document.forms[i].elements[j].name;
388: if (fieldName == 'filelink') {
389: document.forms[i].elements[j].checked = false;
390: queue(document.forms[i].name);
391: }
392: }
393: }
394: }
395: function openWindow(url, wdwName, w, h, toolbar,scrollbar,locationbar) {
396: var xpos = (screen.width-w)/2;
397: xpos = (xpos < 0) ? '0' : xpos;
398: var ypos = (screen.height-h)/2-30;
399: ypos = (ypos < 0) ? '0' : ypos;
400: var options = "width=" + w + ",height=" + h + ",screenx="+xpos+",screeny="+ypos+",";
401: options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
402: options += "menubar=no,toolbar="+toolbar+",location="+locationbar+",directories=no";
403: var newWin = window.open(url, wdwName, options);
404: newWin.focus();
405: }
406: function gothere(val) {
407: window.location=val+'?acts='+document.forms.fileattr.acts.value$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,
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/fhwfdev/?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: # ------------------------------- output state of file attributes to be showing
456: # All versions has to the last item
457: # since it does not take an extra col
458: my %lt=&Apache::lonlocal::texthash(
459: 'ti' => 'Title',
460: 'si' => 'Size',
461: 'la' => 'Last access',
462: 'lm' => 'Last modified',
463: 'st' => 'Statistics',
464: 'au' => 'Author',
465: 'kw' => 'Keywords',
466: 'sb' => 'Subject',
467: 'nt' => 'Notes',
468: 'ab' => 'Abstract',
469: 'ln' => 'Language',
470: 'gl' => 'Grade Level',
471: 'sd' => 'Standards',
472: 'sa' => 'Source Available',
473: 'sr' => 'Show resource',
474: 'li' => 'Linked/Related Resources',
475: 'av' => 'All versions',
476: 'ud' => 'Update Display',
477: 'pr' => 'Problems',
478: 'gr' => 'Graphics',
479: 'at' => 'All types',
480: 'hd' => 'Display Options'
481: );
482: $r->print(<<END);
483: <form method="post" name="fileattr" action="$uri" enctype="application/x-www-form-urlencoded">
484: <fieldset>
485: <legend>$lt{'hd'}</legend>
486: <label><input type="checkbox" name="attr9" value="1" $attrchk[9] onclick="this.form.submit();" /> $lt{'av'}</label>
487: <table border="0">
488: <tr>
489: <td><label><input type="checkbox" name="attr0" value="1" $attrchk[0] onclick="this.form.submit();" /> $lt{'ti'}</label></td>
490: <td><label><input type="checkbox" name="attr4" value="1" $attrchk[4] onclick="this.form.submit();" /> $lt{'au'}</label></td>
491: <td><label><input type="checkbox" name="attr5" value="1" $attrchk[5] onclick="this.form.submit();" /> $lt{'kw'}</label></td>
492: <td><label><input type="checkbox" name="attr6" value="1" $attrchk[6] onclick="this.form.submit();" /> $lt{'ln'}</label></td>
493: <td><label><input type="checkbox" name="attr13" value="1" $attrchk[13] onclick="this.form.submit();" /> $lt{'nt'}</label></td>
494: <td><label><input type="checkbox" name="attr16" value="1" $attrchk[16] onclick="this.form.submit();" /> $lt{'sd'}</label></td>
495: </tr>
496: <tr>
497: <td><label><input type="checkbox" name="attr1" value="1" $attrchk[1] onclick="this.form.submit();" /> $lt{'si'}</label></td>
498: <td><label><input type="checkbox" name="attr2" value="1" $attrchk[2] onclick="this.form.submit();" /> $lt{'la'}</label></td>
499: <td><label><input type="checkbox" name="attr3" value="1" $attrchk[3] onclick="this.form.submit();" /> $lt{'lm'}</label></td>
500: <td><label><input type="checkbox" name="attr10" value="1" $attrchk[10] onclick="this.form.submit();" /> $lt{'sa'}</label></td>
501: <td><label><input type="checkbox" name="attr14" value="1" $attrchk[14] onclick="this.form.submit();" /> $lt{'ab'}</label></td>
502: <td> </td>
503: </tr>
504: <tr>
505: <td><label><input type="checkbox" name="attr8" value="1" $attrchk[8] onclick="this.form.submit();" /> $lt{'st'}</label></td>
506: <td><label><input type="checkbox" name="attr11" value="1" $attrchk[11] onclick="this.form.submit();" /> $lt{'li'}</label></td>
507: <td><label><input type="checkbox" name="attr7" value="1" $attrchk[7] onclick="this.form.submit();" /> $lt{'sr'}</label></td>
508: <td><label><input type="checkbox" name="attr12" value="1" $attrchk[12] onclick="this.form.submit();" /> $lt{'sb'}</label></td>
509: <td><label><input type="checkbox" name="attr15" value="1" $attrchk[15] onclick="this.form.submit();" /> $lt{'gl'}</label></td>
510: <td> </td>
511: </tr>
512: </table>
513: <input type="hidden" name="attrs" value="1" />
514: END
515: my @file_categories = &Apache::loncommon::filecategories();
516: my %select_file_categories;
517: my @select_form_order = ('');
518: $select_file_categories{''} = &mt('All file types');
519: foreach my $cat (@file_categories) {
520: my $types = join(",",&Apache::loncommon::filecategorytypes($cat));
521: $select_file_categories{$types} = &mt($cat);
522: push(@select_form_order,$types);
523: }
524: $select_file_categories{'select_form_order'} = \@select_form_order;
525: my $type_element=
526: &Apache::loncommon::select_form(
527: $typeselect,
528: 'only',
529: %select_file_categories);
530: $type_element = '<label>'.&mt('File Type Displayed: [_1]',
531: $type_element).'</label>';
532: $r->print($type_element
533: .'</fieldset>');
534: $r->print(<<END);
535: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
536: <input type="hidden" name="acts" value="" />
537: $closebutton $groupimportbutton
538: END
539: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
540:
541: # -------------- Filter out sequence containment in crumbs and "recent folders"
542: my $storeuri=$uri;
543: $storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
544: $storeuri=~s/\/+/\//g;
545: # ---------------------------------------------------------------- Bread crumbs
546: $r->print(
547: '<p>'
548: .&Apache::lonhtmlcommon::crumbs(
549: $storeuri,
550: '',
551: '',
552: (($env{'form.catalogmode'} eq 'import')?
553: 'document.forms.fileattr':''))
554: .'<br />'
555: .&Apache::lonhtmlcommon::select_recent(
556: 'residx',
557: 'resrecent',
558: '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();')
559: .'</p>'
560: );
561: # -------------------------------------------------------- Resource Home Button
562: my $reshome=$env{'course.'.$env{'request.course.id'}.'.reshome'};
563: if ($reshome) {
564: $r->print("<span class=\"LC_fontsize_large\"><a href='");
565: if ($env{'form.catalogmode'} eq 'import') {
566: $r->print('javascript:document.forms.fileattr.action="'.&Apache::loncommon::inhibit_menu_check($reshome).'";document.forms.fileattr.submit();');
567: } else {
568: $r->print($reshome);
569: }
570: $r->print("'>".&mt('Home').'</a></span>');
571: }
572: $r->print('</form>');
573: # ------------------------------------------------------ Remember where we were
574: &Apache::loncommon::storeresurl($storeuri);
575: &Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
576: # -------------------------------------------------- Check All and Uncheck all
577: if ($env{'form.catalogmode'} eq 'import') {
578: $r->print('<p><input type="button" value="'.&mt("Check All").'" id="checkallbutton" onclick="javascript:checkAll()" />');
579: $r->print('<input type="button" value="'.&mt("Uncheck All").'" id="uncheckallbutton" onclick="javascript:uncheckAll()" /></p>');
580: }
581: # ----------------- output starting row to the indexed file/directory hierarchy
582: #$r->print(&initdebug());
583: #$r->print(&writedebug("Omit:@Omit")) if (@Omit);
584: #$r->print(&writedebug("Only:@Only")) if (@Only);
585: $r->print(&Apache::loncommon::start_data_table("LC_tableBrowseRes")
586: .&Apache::loncommon::start_data_table_header_row());
587: $r->print("<th $colspan>".&mt('Name')."</th>\n");
588: $r->print("<th>".&mt('Title')."</th>\n")
589: if ($hash{'display_attrs_0'} == 1);
590: $r->print('<th class="LC_right">'.&mt("Size")." (".&mt("bytes").") ".
591: "</th>\n") if ($hash{'display_attrs_1'} == 1);
592: $r->print("<th>".&mt("Last accessed")."</th>\n")
593: if ($hash{'display_attrs_2'} == 1);
594: $r->print("<th>".&mt("Last modified")."</th>\n")
595: if ($hash{'display_attrs_3'} == 1);
596: $r->print("<th>".&mt("Author(s)")."</th>\n")
597: if ($hash{'display_attrs_4'} == 1);
598: $r->print("<th>".&mt("Keywords")."</th>\n")
599: if ($hash{'display_attrs_5'} == 1);
600: $r->print("<th>".&mt("Language")."</th>\n")
601: if ($hash{'display_attrs_6'} == 1);
602: $r->print("<th>".&mt("Usage Statistics")." <br />(".
603: &mt("Courses/Network Hits").") ".&mt('updated periodically')."</th>\n")
604: if ($hash{'display_attrs_8'} == 1);
605: $r->print("<th>".&mt("Source Available")."</th>\n")
606: if ($hash{'display_attrs_10'} == 1);
607: $r->print("<th>".&mt("Linked/Related Resources")."</th>\n")
608: if ($hash{'display_attrs_11'} == 1);
609: $r->print("<th>".&mt("Resource")."</th>\n")
610: if ($hash{'display_attrs_7'} == 1);
611: $r->print("<th>".&mt("Subject")."</th>\n")
612: if ($hash{'display_attrs_12'} == 1);
613: $r->print("<th>".&mt("Notes")."</th>\n")
614: if ($hash{'display_attrs_13'} == 1);
615: $r->print("<th>".&mt("Abstract")."</th>\n")
616: if ($hash{'display_attrs_14'} == 1);
617: $r->print("<th>".&mt("Grade Level")."</th>\n")
618: if ($hash{'display_attrs_15'} == 1);
619: $r->print("<th>".&mt("Standards")."</th>\n")
620: if ($hash{'display_attrs_16'} == 1);
621:
622: $r->print(&Apache::loncommon::end_data_table_header_row());
623:
624:
625:
626: # ----------------- read in what directories have previously been set to "open"
627: foreach (keys %hash) {
628: if ($_ =~ /^diropen_status_/) {
629: my $key = $_;
630: $key =~ s/^diropen_status_//;
631: $dirs{$key} = $hash{$_};
632: }
633: }
634:
635: if ($env{'form.openuri'}) { # take care of review and refresh options
636: my $uri=$env{'form.openuri'};
637: if (exists($hash{'diropen_status_'.$uri})) {
638: my $cursta = $hash{'diropen_status_'.$uri};
639: $dirs{$uri} = 'open';
640: $hash{'diropen_status_'.$uri} = 'open';
641: if ($cursta eq 'open') {
642: $dirs{$uri} = 'closed';
643: $hash{'diropen_status_'.$uri} = 'closed';
644: }
645: } else {
646: $hash{'diropen_status_'.$uri} = 'open';
647: $dirs{$uri} = 'open';
648: }
649: }
650:
651: my $toplevel;
652: my $indent = 0;
653: $uri = $uri.'/' if $uri !~ /.*\/$/;
654:
655: if ($env{'form.dirPointer'} ne 'on') {
656: $hash{'top.level'} = $uri;
657: $toplevel = $uri;
658: } else {
659: $toplevel = $hash{'top.level'};
660: }
661:
662: # -------------------------------- if not at top level, provide an uplink arrow
663: if ($toplevel ne '/res/'){
664: my (@uri_com) = split(/\//,$uri);
665: pop @uri_com;
666: my $upone = join('/',@uri_com);
667: my @list = qw (0);
668: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
669: $indent = 1;
670: }
671:
672: # -------- recursively go through all the directories and output as appropriate
673: &scanDir ($r,$toplevel,$indent,\%hash);
674:
675: # -------------------------------------------------------------- end the tables
676: $r->print(&Apache::loncommon::end_data_table());
677:
678: # ---------------------------- embed hidden information useful for group import
679: $r->print("<form name='fnum' action=''>");
680: $r->print("<input type='hidden' name='fnum' value='$fnum' /></form>");
681:
682: # --------------------------------------------------- end the output and return
683: $r->print(&Apache::loncommon::end_page()."\n");
684: }
685: if(! $c->aborted()) {
686: # write back into the temporary file
687: my %dbfile;
688: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
689: while (my($key,$value) = each(%hash)) {
690: $dbfile{$key}=$value;
691: }
692: untie(%dbfile);
693: }
694: }
695:
696: return OK;
697: }
698:
699: # ----------------------------------------------- recursive scan of a directory
700: sub scanDir {
701: my ($r,$startdir,$indent,$hashref)=@_;
702: my $c = $r->connection();
703: my ($compuri,$curdir);
704: my $dirptr=16384;
705: my $obs;
706: $indent++;
707: my %dupdirs = %dirs;
708: my @list=&get_list($r,$startdir);
709: foreach my $line (@list) {
710: return if ($c->aborted());
711: #This is a kludge, sorry aboot this
712: my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
713: next if($strip =~ /.*\.meta$/ | $obs eq '1');
714: my (@fileparts) = split(/\./,$strip);
715: if ($hash{'display_attrs_9'} != 1) {
716: # if not all versions to be shown
717: if (scalar(@fileparts) >= 3) {
718: my $fext = pop @fileparts;
719: my $ov = pop @fileparts;
720: my $fname = join ('.',@fileparts,$fext);
721: next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
722: }
723: }
724:
725: if ($dom eq 'domain') {
726: # dom list has full path /res/<domain name>/ already
727: $curdir='';
728: $compuri = (split(/\&/,$line))[0];
729: } else {
730: # user, dir & file have name only, i.e., w/o path
731: $compuri = join('',$startdir,$strip,'/');
732: $curdir = $startdir;
733: }
734: my $diropen = 'closed';
735: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
736: while (my ($key,$val)= each %dupdirs) {
737: if ($key eq $compuri and $val eq "open") {
738: $diropen = "opened";
739: delete($dupdirs{$key});
740: delete($dirs{$key});
741: }
742: }
743: }
744: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
745: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
746: }
747: $indent--;
748: }
749:
750: # --------------- get complete matched list based on the uri (returns an array)
751: sub get_list {
752: my ($r,$uri)=@_;
753: my @list=();
754: (my $luri = $uri) =~ s/\//_/g;
755: if ($env{'form.updatedisplay'}) {
756: foreach (keys %hash) {
757: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
758: delete $hash{$_} if ($_ =~ /^dirlist_timestamp_files_/);
759: }
760: }
761:
762: if (defined($hash{'dirlist_files_'.$luri}) &&
763: $hash{'dirlist_timestamp_files_'.$luri}+600 > (time)) {
764: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
765: } elsif ($uri=~/\.(page|sequence)\/$/) {
766: # is a page or a sequence
767: $uri=~s/\/$//;
768: $uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
769: $uri=~s/\/+/\//g;
770: foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
771: my @ratpart=split(/\:/,$_);
772: push(@list,&LONCAPA::map::qtescape($ratpart[1]));
773: }
774: $hash{'dirlist_files_'.$luri} = join("\n",@list);
775: } else {
776: # is really a directory
777: @list = &Apache::lonnet::dirlist($uri);
778: $hash{'dirlist_files_'.$luri} = join("\n",@list);
779: $hash{'dirlist_timestamp_files_'.$luri} = time;
780: }
781: return @list=&match_ext($r,@list);
782: }
783:
784: sub dynmetaread {
785: my $uri=shift;
786: if (($hash{'display_attrs_8'}==1) || ($hash{'display_attrs_11'}==1)) {
787: # We don't want the filename
788: $uri=~s/\/[^\/]+$//;
789: # Did we already see this?
790: my $builddir=$uri;
791: while ($builddir) {
792: if ($dynread{$builddir}) {
793: return 0;
794: }
795: $builddir=~s/\/[^\/]+$//;
796: }
797: # Actually get the data
798: %dynhash=
799: (%dynhash,&Apache::lonmeta::get_dynamic_metadata_from_sql($uri.'/'));
800: # Remember that we got it
801: $dynread{$uri}=1;
802: }
803: }
804:
805: sub initdebug {
806: my $start_page=
807: &Apache::loncommon::start_page('Debug',undef,
808: {'only_body' => 1,});
809: $start_page =~ s/\n/ /g;
810: return <<ENDJS;
811: <script type="text/javascript">
812: var debugging = true;
813: if (debugging) {
814: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
815: }
816:
817: function output(text) {
818: if (debugging) {
819: debuggingWindow.document.writeln(text);
820: }
821: }
822: output('$start_page<pre>');
823: </script>
824: ENDJS
825: }
826:
827: sub writedebug {
828: my ($text) = @_;
829: return "<script type=\"text/javascript\">output('$text');</script>";
830: }
831:
832: # -------------------- filters out files based on extensions (returns an array)
833: sub match_ext {
834: my ($r,@packlist)=@_;
835: my @trimlist;
836: my $nextline;
837: my @fileext;
838: my $dirptr=16384;
839:
840: foreach my $line (@packlist) {
841: chomp $line;
842: $line =~ s/^\/home\/httpd\/html//;
843: my @unpackline = split (/\&/,$line);
844: next if ($unpackline[0] eq '.');
845: next if ($unpackline[0] eq '..');
846: my @filecom = split (/\./,$unpackline[0]);
847: my $fext = pop(@filecom);
848: my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
849: if ($fnptr == 0 and $unpackline[3] ne "") {
850: my $embstyle = &Apache::loncommon::fileembstyle($fext);
851: push @trimlist,$line if (defined($embstyle) &&
852: ($embstyle ne 'hdn' or $fext eq 'meta'));
853: } else {
854: push @trimlist,$line;
855: }
856: }
857: @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
858: return @trimlist;
859: }
860:
861: # ------------------------------- displays one line in appropriate table format
862: sub display_line {
863: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
864: my (@pathfn, $fndir);
865: # there could be relative paths (files actually belonging into this directory)
866: # or absolute paths (for example, from sequences)
867: my $absolute;
868: my $pathprefix;
869: if ($line=~m|^/res/| && $startdir ne '') {
870: $absolute=1;
871: $pathprefix='';
872: } else {
873: $absolute=0;
874: $pathprefix=$startdir;
875: }
876: my $dirptr=16384;
877: #SB my $fileclr="#ffffe6";
878: my $iconpath= $r->dir_config('lonIconsURL') . '/';
879:
880: my @filecom = split (/\&/,$line);
881: my @pathcom = split (/\//,$filecom[0]);
882: my $listname = $pathcom[scalar(@pathcom)-1];
883: my $fnptr = $filecom[3]&$dirptr;
884: my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
885: $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
886: my $nowOpen = ($diropen eq 'opened' ? 1 : 0);
887:
888: my $tabtag='</td>';
889: my $i=0;
890: while ($i<=16) {
891: $tabtag=join('',$tabtag,"<td> </td>")
892: if ($i != 9 &&
893: $hash{'display_attrs_'.$i} == 1);
894: $i++;
895: }
896: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
897:
898: # display uplink arrow
899: if ($filecom[1] eq 'viewOneUp') {
900: my $updir=$startdir;
901: # -------------- Filter out sequence containment in crumbs and "recent folders"
902: $updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
903: $updir=~s/\/+/\//g;
904:
905: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
906: $r->print(&Apache::loncommon::start_data_table_row()); # valign="$valign" ?!?
907: $r->print($extrafield);
908: $r->print("<td>\n");
909: $r->print ('<form method="post" name="dirpathUP" action="'.$updir.
910: '/" '.
911: 'onsubmit="return rep_dirpath(\'UP\','.
912: 'document.forms.fileattr.acts.value)" '.
913: 'enctype="application/x-www-form-urlencoded"'.
914: '>'."\n");
915: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
916: $r->print ('<input type="hidden" name="openuri" value="'.
917: $startdir.'" />'."\n");
918: $r->print ('<input type="hidden" name="acts" value="" />'."\n");
919: $r->print ('<a href="#" onclick="document.dirpathUP.submit()"><img src="'.$iconpath.'arrow.up.gif"');
920: $r->print (' alt="'.$msg.'" class="LC_fileicon" />'.
921: "\n");
922: $r->print(&mt("Up")."</a></form>$tabtag");
923: $r->print(&Apache::loncommon::end_data_table_row());
924: return OK;
925: }
926: # Do we have permission to look at this?
927: if($filecom[15] ne '1') { return OK if ((!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])) && (!&Apache::lonnet::allowed('bro',$pathprefix.$filecom[0]))); }
928:
929: # make absolute links appear on different background
930: #SB if ($absolute) { $fileclr='#ccdd99'; }
931:
932: # display domain
933: if ($filecom[1] eq 'domain') {
934: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n")
935: if ($env{'form.dirPointer'} eq "on");
936: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
937: $r->print(&Apache::loncommon::start_data_table_row()); # valign="$valign" ?!?"
938: $r->print($extrafield);
939: $r->print("<td>");
940: &begin_form ($r,$filecom[0]);
941: my $anchor = $filecom[0];
942: $anchor =~ s/\W//g;
943: $r->print ('<a name="'.$anchor.'"></a>');
944: $r->print ('<input type="hidden" name="acts" value="" />');
945: $r->print ('<a href="#" onclick="document.dirpath'.($dnum-1).'.submit()"><img src="'.$iconpath.'arrow.'.($nowOpen ? "open" : "closed" ).'.gif"');
946: $r->print (' alt="'.$msg.'" class="LC_fileicon" /></a>'.
947: "\n");
948: my $quotable_filecom = &Apache::loncommon::escape_single($filecom[0]);
949: $r->print ('<a href="javascript:gothere(\''.$quotable_filecom.
950: '\')"><img alt="" src="'.$iconpath.'server.gif"');
951: $r->print (' class="LC_fileicon" />'."\n");
952: $r->print (&mt("Domain")." - $listname </a>");
953: if (&Apache::lonnet::domain($listname,'description')) {
954: $r->print("<br />(".&Apache::lonnet::domain($listname,'description').
955: ")");
956: }
957: $r->print("</form>$tabtag");
958: $r->print(&Apache::loncommon::end_data_table_row());
959: return OK;
960:
961: # display user directory
962: }
963: if ($filecom[1] eq 'user') {
964: # $r->print("<tr valign=$valign bgcolor=\"$fileclr\">$extrafield");
965: my $curdir = $startdir.$filecom[0].'/';
966: my $anchor = $curdir;
967: $anchor =~ s/\W//g;
968: #SB $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
969: $r->print(&Apache::loncommon::start_data_table_row()
970: .$extrafield.'<td class="LC_'.$valign.'">');
971: &begin_form ($r,$curdir);
972: $r->print ('<a name="'.$anchor.'"></a><img alt="" src="'.$iconpath.
973: 'whitespace_21.gif" class="LC_icon" />'."\n");
974: $r->print ('<input type="hidden" name="acts" value="" />');
975: $r->print ('<a href="#" onclick="document.dirpath'.($dnum-1).'.submit()">');
976: $r->print ('<img src="'.$iconpath.'arrow.'.($nowOpen ? "open" : "closed" ).
977: '.gif" class="LC_fileicon"');
978: $r->print (' alt="'.$msg.'"/></a>'.
979: "\n");
980: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
981: $r->print ('<a href="javascript:gothere(\''.$quotable_curdir
982: .'\')"><img alt="'.$msg.'" src="'.
983: $iconpath.'quill.gif" class="LC_fileicon" />');
984: my $domain=(split(m|/|,$startdir))[2];
985: my $plainname=&Apache::loncommon::plainname($listname,$domain);
986: $r->print ($listname.'</a>');
987:
988: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
989: $r->print('</form>'.$tabtag);
990: $r->print(&Apache::loncommon::end_data_table_row());
991: return OK;
992: }
993:
994: # display file
995: if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
996: my $title;
997: my $filelink = $pathprefix.$filecom[0];
998: if ($hash{'display_attrs_0'} == 1) {
999: $title = &Apache::lonnet::gettitle($filelink);
1000: }
1001: my @file_ext = split (/\./,$listname);
1002: my $curfext = $file_ext[-1];
1003: if (@Omit) {
1004: foreach (@Omit) { return OK if (lc($curfext) eq $_); }
1005: }
1006: if (@Only) {
1007: my $skip = 1;
1008: foreach (@Only) { $skip = 0 if (lc($curfext) eq $_); }
1009: return OK if ($skip > 0);
1010: }
1011: # Set the icon for the file
1012: my $iconname = &Apache::loncommon::icon($listname);
1013: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">);
1014: $r->print(&Apache::loncommon::start_data_table_row()); #SB valign="$valign" ?!?
1015: $r->print('<td class="LC_middle LC_nobreak">');
1016:
1017: if ($env{'form.catalogmode'} eq 'interactive') {
1018: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
1019: $r->print("<a href=\"javascript:select_data(\'",
1020: $quotable_filelink,"')\">");
1021: $r->print("<img alt=\"\" src='",$iconpath,"select.gif' class='LC_icon' /></a>".
1022: "\n");
1023: $r->print('</td><td class="LC_middle">');
1024: } elsif ($env{'form.catalogmode'} eq 'import') {
1025: $r->print("<form name='form$fnum' action=''>\n");
1026: $r->print("<input type='checkbox' name='filelink"."' ".
1027: "value='$filelink' onclick='".
1028: "javascript:queue(\"form$fnum\")' ");
1029: if ($hash{'store_'.$filelink}) {
1030: $r->print("checked");
1031: }
1032: $r->print(" />\n");
1033: $r->print('</form></td><td class="LC_middle">');
1034: $hash{"pre_${fnum}_link"}=$filelink;
1035: $hash{"pre_${fnum}_title"}=$title;
1036: if (!$hash{"pre_${fnum}_title"}) {
1037: $hash{"pre_${fnum}_title"} = 'Not_retrieved';
1038: }
1039: $fnum++;
1040: }
1041: # Form to open or close sequences
1042: if ($filelink=~/\.(page|sequence)$/) {
1043: my $curdir = $startdir.$filecom[0].'/';
1044: &begin_form($r,$curdir);
1045: $indent--;
1046: }
1047: # General indentation
1048: my $count = 0;
1049: while ($count < $indent) {
1050: $r->print('<img alt="" src="'.$iconpath.'whitespace_21.gif"
1051: class="LC_icon" />');
1052: $count++;
1053: }
1054: # Sequence open/close icon
1055: if ($filelink=~/\.(page|sequence)$/) {
1056: my $curdir = $startdir.$filecom[0].'/';
1057: my $anchor = $curdir;
1058: $anchor =~ s/\W//g;
1059: $r->print ('<input type="hidden" name="acts" value="" />');
1060: $r->print ('<a name="'.$anchor.'"></a>');
1061: $r->print ('<a href="#" onclick="document.dirpath'.($dnum-1).'.submit()">');
1062: $r->print ('<img src="'.$iconpath.'arrow.'.($nowOpen ? "open" : "closed" ).
1063: '.gif" class="LC_fileicon"');
1064: $r->print (' alt="'.$msg.'" /></a>'.
1065: "\n");
1066: }
1067: # Filetype icons
1068: $r->print("<img alt=\"\" src='$iconname' class='LC_fileicon' />\n");
1069: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
1070:
1071: $r->print (" <a href=\"javascript:openWindow('".$quotable_filelink.
1072: "?inhibitmenu=yes','previewfile','450','500','no','yes','yes');\"".
1073: " target=\"_self\">$listname</a> ");
1074: $quotable_filelink = &Apache::loncommon::escape_single($filelink.'.meta');
1075: &Apache::loncommon::inhibit_menu_check(\$quotable_filelink);
1076: $r->print (" (<a href=\"javascript:openWindow('".$quotable_filelink.
1077: "?inhibitmenu=yes','metadatafile','500','550','no','yes','no');\" ".
1078: " target=\"_self\">".&mt('metadata')."</a>) ");
1079: # Close form to open/close sequence
1080: if ($filelink=~/\.(page|sequence)$/) {
1081: $r->print('</form>');
1082: }
1083: $r->print("</td>\n");
1084: if ($hash{'display_attrs_0'} == 1) {
1085: $r->print('<td> '.($title eq '' ? ' ' : $title).
1086: ' </td>'."\n");
1087: }
1088: $r->print('<td class="LC_right"> ',
1089: $filecom[8]," </td>\n")
1090: if $hash{'display_attrs_1'} == 1;
1091: $r->print('<td class="LC_nobreak"> '.
1092: (&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
1093: if $hash{'display_attrs_2'} == 1;
1094: $r->print('<td class="LC_nobreak"> '.
1095: (&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
1096: if $hash{'display_attrs_3'} == 1;
1097:
1098: if ($hash{'display_attrs_4'} == 1) {
1099: my $author = &Apache::lonnet::metadata($filelink,'author');
1100: $r->print('<td class="LC_nobreak"> '.($author eq '' ? ' ' : $author).
1101: " </td>\n");
1102: }
1103: if ($hash{'display_attrs_5'} == 1) {
1104: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1105: # $keywords = ' ' if (!$keywords);
1106: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1107: " </td>\n");
1108: }
1109:
1110: if ($hash{'display_attrs_6'} == 1) {
1111: my $lang = &Apache::lonnet::metadata($filelink,'language');
1112: $lang = &Apache::loncommon::languagedescription($lang);
1113: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1114: " </td>\n");
1115: }
1116: if ($hash{'display_attrs_8'} == 1) {
1117: # statistics
1118: &dynmetaread($filelink);
1119: $r->print("<td>");
1120:
1121: for (qw(count course stdno avetries difficulty disc clear technical
1122: correct helpful depth)) {
1123:
1124: dynmetaprint($r,$filelink,$_);
1125: }
1126:
1127: $r->print(" </td>\n");
1128:
1129: }
1130: if ($hash{'display_attrs_10'} == 1) {
1131: my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
1132: if($source eq 'open') {
1133: my $sourcelink = &Apache::lonsource::make_link($filelink,$listname);
1134: my $quotable_sourcelink = &Apache::loncommon::escape_single($sourcelink);
1135: &Apache::loncommon::inhibit_menu_check(\$quotable_sourcelink);
1136: $r->print('<td>'."<a href=\"javascript:openWindow('"
1137: .$quotable_sourcelink.
1138: "', 'previewsource', '700', '700', 'no', 'yes','yes');\"".
1139: " target=\"_self\">".&mt('Source Code')."</a> "."</td>\n");
1140: } else { #A cuddled else. :P
1141: $r->print("<td> </td>\n");
1142: }
1143: }
1144: if ($hash{'display_attrs_11'} == 1) {
1145: # links
1146: &dynmetaread($filelink);
1147: $r->print('<td>');
1148: &coursecontext($r,$filelink);
1149: for (qw(goto_list comefrom_list sequsage_list dependencies course_list)) {
1150: dynmetaprint($r,$filelink,$_);
1151: }
1152: $r->print('</td>');
1153: }
1154:
1155:
1156:
1157: if ($hash{'display_attrs_7'} == 1) {
1158: # Show resource
1159: my $output=&showpreview($filelink);
1160: $r->print('<td class="LC_fontsize_medium">'.($output eq '' ? ' ':$output).
1161: " </td>\n");
1162: }
1163:
1164: if ($hash{'display_attrs_12'} == 1) {
1165: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1166: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1167: " </td>\n");
1168: }
1169:
1170: if ($hash{'display_attrs_13'} == 1) {
1171: my $notes = &Apache::lonnet::metadata($filelink,'notes');
1172: $r->print('<td> '.($notes eq '' ? ' ' : $notes).
1173: " </td>\n");
1174: }
1175:
1176: if ($hash{'display_attrs_14'} == 1) {
1177: my $abstract = &Apache::lonnet::metadata($filelink,'abstract');
1178: $r->print('<td> '.($abstract eq '' ? ' ' : $abstract).
1179: " </td>\n");
1180: }
1181:
1182: if ($hash{'display_attrs_15'} == 1) {
1183: my $gradelevel = &Apache::lonnet::metadata($filelink,'gradelevel');
1184: $r->print('<td> '.($gradelevel eq '' ? ' ' : $gradelevel).
1185: " </td>\n");
1186: }
1187:
1188: if ($hash{'display_attrs_16'} == 1) {
1189: my $standards = &Apache::lonnet::metadata($filelink,'standards');
1190: $r->print('<td> '.($standards eq '' ? ' ' : $standards).
1191: " </td>\n");
1192: }
1193:
1194: $r->print(&Apache::loncommon::end_data_table_row());
1195: }
1196:
1197:
1198:
1199: # -- display directory
1200: if ($fnptr == $dirptr) {
1201: my $curdir = $startdir.$filecom[0].'/';
1202: my $anchor = $curdir;
1203: $anchor =~ s/\W//g;
1204: #SB $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
1205: $r->print(&Apache::loncommon::start_data_table_row()); # SB: bgcolor suggestion: darkgrey ("LC_info_row"?!?)
1206: # $r->print('<tr class="LC_info_row">');
1207: $r->print($extrafield.'<td class="LC_middle LC_nobreak">');
1208: &begin_form ($r,$curdir);
1209: my $indentm1 = $indent-1;
1210: my $count = 0;
1211: while ($count < $indentm1) {
1212: $r->print ('<img alt="" src="',$iconpath
1213: ,'whitespace_21.gif" class="LC_icon" />');
1214: $count++;
1215: }
1216: $r->print ('<input type="hidden" name="acts" value="" />');
1217: $r->print ('<a name="'.$anchor.'"></a>');
1218: $r->print ('<a href="#" onclick="document.dirpath'.($dnum-1).'.submit()"><img src="'.$iconpath.
1219: 'arrow.'.($nowOpen ? "open" : "closed" ).'.gif"');
1220: $r->print (' alt="'.$msg.'" class="LC_fileicon" /></a>'.
1221: "\n");
1222: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
1223:
1224: my $location = &Apache::loncommon::lonhttpdurl("/adm/lonIcons");
1225: my $icon = "navmap.folder.".($nowOpen ? "open":"closed").'.gif';
1226: $r->print ('<a href="javascript:gothere(\''
1227: .$quotable_curdir.'\')"">'
1228: .'<img class="LC_fileicon" alt="'.&mt('Open Folder').'" src="'.
1229: $location."/".$icon.'" />'.
1230: "\n");
1231: $r->print ("$listname</a></form></td>\n");
1232: # Attributes
1233: my $filelink = $startdir.$filecom[0].'/default';
1234:
1235: if ($hash{'display_attrs_0'} == 1) {
1236: my $title = &Apache::lonnet::gettitle($filelink);
1237: $r->print('<td> '.($title eq '' ? ' ' : $title).
1238: ' </td>'."\n");
1239: }
1240: $r->print('<td class="LC_right"> ',
1241: $filecom[8]," </td>\n")
1242: if $hash{'display_attrs_1'} == 1;
1243: $r->print('<td class="LC_break"> '.
1244: (&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
1245: if $hash{'display_attrs_2'} == 1;
1246: $r->print('<td class="LC_break"> '.
1247: (&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
1248: if $hash{'display_attrs_3'} == 1;
1249:
1250: if ($hash{'display_attrs_4'} == 1) {
1251: my $author = &Apache::lonnet::metadata($filelink,'author');
1252: $r->print('<td> '.($author eq '' ? ' ' : $author).
1253: " </td>\n");
1254: }
1255: if ($hash{'display_attrs_5'} == 1) {
1256: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1257: # $keywords = ' ' if (!$keywords);
1258: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1259: " </td>\n");
1260: }
1261: if ($hash{'display_attrs_6'} == 1) {
1262: my $lang = &Apache::lonnet::metadata($filelink,'language');
1263: $lang = &Apache::loncommon::languagedescription($lang);
1264: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1265: " </td>\n");
1266: }
1267:
1268: if ($hash{'display_attrs_8'} == 1) {
1269: $r->print('<td> </td>');
1270: }
1271: if ($hash{'display_attrs_10'} == 1) {
1272: $r->print('<td> </td>');
1273: }
1274: if ($hash{'display_attrs_7'} == 1) {
1275: $r->print('<td> </td>');
1276: }
1277: if ($hash{'display_attrs_11'} == 1) {
1278: $r->print('<td> </td>');
1279: }
1280: if ($hash{'display_attrs_12'} == 1) {
1281: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1282: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1283: " </td>\n");
1284: }
1285: if ($hash{'display_attrs_13'} == 1) {
1286: my $notes = &Apache::lonnet::metadata($filelink,'notes');
1287: $r->print('<td> '.($notes eq '' ? ' ' : $notes).
1288: " </td>\n");
1289: }
1290:
1291: if ($hash{'display_attrs_14'} == 1) {
1292: my $abstract = &Apache::lonnet::metadata($filelink,'abstract');
1293: $r->print('<td> '.($abstract eq '' ? ' ' : $abstract).
1294: " </td>\n");
1295: }
1296:
1297: if ($hash{'display_attrs_15'} == 1) {
1298: my $gradelevel = &Apache::lonnet::metadata($filelink,'gradelevel');
1299: $r->print('<td> '.($gradelevel eq '' ? ' ' : $gradelevel).
1300: " </td>\n");
1301: }
1302:
1303: if ($hash{'display_attrs_16'} == 1) {
1304: my $standards = &Apache::lonnet::metadata($filelink,'standards');
1305: $r->print('<td> '.($standards eq '' ? ' ' : $standards).
1306: " </td>\n");
1307: }
1308:
1309:
1310: $r->print(&Apache::loncommon::end_data_table_row());
1311: }
1312:
1313: }
1314:
1315: sub coursecontext {
1316: my ($r,$filelink)=@_;
1317: my $filesymb=&Apache::lonnet::symbread($filelink);
1318: if ($filesymb) {
1319: my ($map,$index,$resource)=&Apache::lonnet::decode_symb($filesymb);
1320: $r->print(&mt('Already in this course:<br />[_1] in folder/map [_2].<br />',
1321: &Apache::lonnet::gettitle($resource),
1322: &Apache::lonnet::gettitle($map)));
1323: }
1324: }
1325:
1326: sub showpreview {
1327: my ($filelink)=@_;
1328: if ($filelink=~m-^(/ext/|http://)-) {
1329: return &mt('External Resource, preview not enabled');
1330: }
1331: my ($curfext)=($filelink=~/\.(\w+)$/);
1332: my $output='';
1333: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
1334: if ($embstyle eq 'ssi') {
1335: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
1336: '.tmp';
1337: if ((!$env{'form.updatedisplay'}) &&
1338: (-e $cache)) {
1339: open(FH,$cache);
1340: $output=join("\n",<FH>);
1341: close(FH);
1342: } else {
1343: # In update display mode, remove old cache. This is done to retroactively
1344: # clean up course context renderings.
1345: if (-e $cache) {
1346: unlink($cache);
1347: }
1348: $output=&Apache::lonnet::ssi_body($filelink);
1349: # Is access denied? Don't render, don't store
1350: if ($output=~/LONCAPAACCESSCONTROLERRORSCREEN/s) {
1351: $output='';
1352: # Was this rendered in course content? Don't store
1353: } elsif (!&Apache::lonnet::symbread($filelink)) {
1354: open(FH,">$cache");
1355: print FH $output;
1356: close(FH);
1357: }
1358: }
1359: } elsif ($embstyle eq 'img') {
1360: $output='<img alt="'.&mt('Preview').'" src="'.$filelink.'" />';
1361: } elsif ($filelink=~m{^/res/($match_domain)/($match_username)/}) {
1362: $output='<img alt="'.&mt('Preview').'" src="http://'.
1363: &Apache::lonnet::hostname(&Apache::lonnet::homeserver($2,$1)).
1364: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1365: }
1366: return $output;
1367: }
1368:
1369: sub dynmetaprint {
1370: my ($r,$filelink,$item)=@_;
1371: if ($dynhash{$filelink}->{$item}) {
1372: $r->print("\n<br />".$fieldnames{$item}.': '.
1373: &Apache::lonmeta::prettyprint($item,
1374: $dynhash{$filelink}->{$item},
1375: (($env{'form.catalogmode'} ne 'import')?'preview':''),
1376: '',
1377: (($env{'form.catalogmode'} eq 'import')?'document.forms.fileattr':''),1));
1378: }
1379: }
1380:
1381: # ------------------- prints the beginning of a form for directory or file link
1382: sub begin_form {
1383: my ($r,$uri) = @_;
1384: my $anchor = $uri;
1385: $anchor =~ s/\W//g;
1386: $uri=&Apache::loncommon::escape_single($uri);
1387: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1388: '#'.$anchor.
1389: '" onsubmit="return rep_dirpath(\''.$dnum.'\''.
1390: ',document.forms.fileattr.acts.value)" '.
1391: 'enctype="application/x-www-form-urlencoded">'."\n");
1392: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'" />'.
1393: "\n");
1394: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n");
1395: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
1396: $dnum++;
1397: }
1398:
1399: # --------- settings whenever the user causes the indexer window to be launched
1400: sub start_fresh_session {
1401: my ($hash) = @_;
1402: delete $hash->{'form.catalogmode'};
1403: delete $hash->{'form.mode'};
1404: delete $hash->{'form.form'};
1405: delete $hash->{'form.element'};
1406: delete $hash->{'form.omit'};
1407: delete $hash->{'form.only'};
1408: foreach (keys %{$hash}) {
1409: delete $hash->{$_} if (/^(pre_|store)/);
1410: }
1411: }
1412:
1413: # ------------------------------------------------------------------- setvalues
1414: sub setvalues {
1415: # setvalues is used in registerurl to synchronize the database
1416: # hash and environment hashes
1417: my ($H1,$h1key,$H2,$h2key) =@_;
1418: #
1419: if (exists $H2->{$h2key}) {
1420: $H1->{$h1key} = $H2->{$h2key};
1421: } elsif (exists $H1->{$h1key}) {
1422: $H2->{$h2key} = $H1->{$h1key};
1423: }
1424: }
1425:
1426: 1;
1427:
1428: sub cleanup {
1429: if (tied(%hash)){
1430: &Apache::lonnet::logthis('Cleanup indexer: hash');
1431: }
1432: return OK;
1433: }
1434:
1435:
1436:
1437:
1438:
1439: =head1 NAME
1440:
1441: Apache::lonindexer - mod_perl module for cross server filesystem browsing
1442:
1443: =head1 SYNOPSIS
1444:
1445: Invoked by /etc/httpd/conf/srm.conf:
1446:
1447: <LocationMatch "^/res.*/$">
1448: SetHandler perl-script
1449: PerlHandler Apache::lonindexer
1450: </LocationMatch>
1451:
1452: =head1 INTRODUCTION
1453:
1454: This module enables a scheme of browsing across a cross server.
1455:
1456: This is part of the LearningOnline Network with CAPA project
1457: described at http://www.lon-capa.org.
1458:
1459: =head1 BEGIN SUBROUTINE
1460:
1461: This routine is only run once after compilation.
1462:
1463: =over 4
1464:
1465: =item *
1466:
1467: Initializes %language hash table.
1468:
1469: =back
1470:
1471: =head1 HANDLER SUBROUTINE
1472:
1473: This routine is called by Apache and mod_perl.
1474:
1475: =over 4
1476:
1477: =item *
1478:
1479: read in machine configuration variables
1480:
1481: =item *
1482:
1483: see if called from an interactive mode
1484:
1485: =item *
1486:
1487: refresh environment with user database values (in %hash)
1488:
1489: =item *
1490:
1491: define extra fields and buttons in case of special mode
1492:
1493: =item *
1494:
1495: set catalogmodefunctions to have extra needed javascript functionality
1496:
1497: =item *
1498:
1499: print header
1500:
1501: =item *
1502:
1503: evaluate actions from previous page (both cumulatively and chronologically)
1504:
1505: =item *
1506:
1507: output title
1508:
1509: =item *
1510:
1511: get state of file attributes to be showing
1512:
1513: =item *
1514:
1515: output state of file attributes to be showing
1516:
1517: =item *
1518:
1519: output starting row to the indexed file/directory hierarchy
1520:
1521: =item *
1522:
1523: read in what directories have previously been set to "open"
1524:
1525: =item *
1526:
1527: if not at top level, provide an uplink arrow
1528:
1529: =item *
1530:
1531: recursively go through all the directories and output as appropriate
1532:
1533: =item *
1534:
1535: information useful for group import
1536:
1537: =item *
1538:
1539: end the tables
1540:
1541: =item *
1542:
1543: end the output and return
1544:
1545: =back
1546:
1547: =head1 OTHER SUBROUTINES
1548:
1549: =over 4
1550:
1551: =item *
1552:
1553: scanDir - recursive scan of a directory
1554:
1555: =item *
1556:
1557: get_list - get complete matched list based on the uri (returns an array)
1558:
1559: =item *
1560:
1561: match_ext - filters out files based on extensions (returns an array)
1562:
1563: =item *
1564:
1565: display_line - displays one line in appropriate table format
1566:
1567: =item *
1568:
1569: begin_form - prints the beginning of a form for directory or file link
1570:
1571: =item *
1572:
1573: start_fresh_session - settings whenever the user causes the indexer window
1574: to be launched
1575:
1576: =back
1577:
1578: =cut
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