1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.201 2009/10/30 05:12:01 raeburn Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: ###
29:
30: ###############################################################################
31: ## ##
32: ## ORGANIZATION OF THIS PERL MODULE ##
33: ## ##
34: ## 1. Description of functions ##
35: ## 2. Modules used by this module ##
36: ## 3. Choices for different output views (detailed, summary, xml, etc) ##
37: ## 4. BEGIN block (to be run once after compilation) ##
38: ## 5. Handling routine called via Apache and mod_perl ##
39: ## 6. Other subroutines ##
40: ## ##
41: ###############################################################################
42:
43: package Apache::lonindexer;
44:
45: # ------------------------------------------------- modules used by this module
46: use strict;
47: use Apache::lonnet;
48: use Apache::loncommon();
49: use Apache::lonhtmlcommon();
50: use Apache::lonsequence();
51: use Apache::Constants qw(:common);
52: use Apache::lonmeta;
53: use Apache::File;
54: use Apache::lonlocal;
55: use Apache::lonsource();
56: use Apache::groupsort();
57: use GDBM_File;
58: use LONCAPA qw(:match);
59:
60: # ---------------------------------------- variables used throughout the module
61: my %hash; # global user-specific gdbm file
62: my %dirs; # keys are directories, values are the open/close status
63: my %language; # has the reference information present in language.tab
64: my %dynhash; # hash of hashes for dynamic metadata
65: my %dynread; # hash of directories already read for dynamic metadata
66: my %fieldnames; # Metadata fieldnames
67: # ----- Values which are set by the handler subroutine and are accessible to
68: # ----- other methods.
69: my $extrafield; # default extra table cell
70: my $fnum; # file counter
71: my $dnum; # directory counter
72:
73: # ----- Used to include or exclude files with certain extensions.
74: my @Only = ();
75: my @Omit = ();
76:
77:
78:
79:
80: # ----------------------------- Handling routine called via Apache and mod_perl
81: sub handler {
82: my $r = shift;
83: my $c = $r->connection();
84: &Apache::loncommon::content_type($r,'text/html');
85: &Apache::loncommon::no_cache($r);
86: $r->send_http_header;
87: return OK if $r->header_only;
88: $fnum=0;
89: $dnum=0;
90:
91: # Deal with stupid global variables (is there a way around making
92: # these global to this package? It is just so wrong....)
93: undef (@Only);
94: undef (@Omit);
95: %fieldnames=&Apache::lonmeta::fieldnames();
96:
97: # ------------------------------------- read in machine configuration variables
98: my $iconpath= $r->dir_config('lonIconsURL') . "/";
99: my $domain = $r->dir_config('lonDefDomain');
100: my $role = $r->dir_config('lonRole');
101: my $loadlim = $r->dir_config('lonLoadLim');
102: my $servadm = $r->dir_config('lonAdmEMail');
103: my $sysadm = $r->dir_config('lonSysEMail');
104: my $lonhost = $r->dir_config('lonHostID');
105: my $tabdir = $r->dir_config('lonTabDir');
106:
107: #SB my $fileclr='#ffffe6';
108: my $line;
109: my (@attrchk,@openpath,$typeselect);
110: my $uri=$r->uri;
111:
112: # -------------------------------------- see if called from an interactive mode
113: # Get the parameters from the query string
114: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
115: ['catalogmode','launch','acts','mode','form','element',
116: 'only','omit','titleelement']);
117: #-------------------------------------------------------------------
118: my $closebutton='';
119: my $groupimportbutton='';
120: my $colspan='';
121:
122: $extrafield='';
123: my $diropendb =
124: "/home/httpd/perl/tmp/$env{'user.domain'}_$env{'user.name'}_sel_res.db";
125: %hash = ();
126: {
127: my %dbfile;
128: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_WRITER(),0640)) {
129: if ($env{'form.launch'} eq '1') {
130: &start_fresh_session(\%dbfile);
131: }
132: while(my($key,$value)=each(%dbfile)) {
133: $hash{$key}=$value;
134: }
135: untie(%dbfile);
136: }
137: }
138: # - Evaluate actions from previous page (both cumulatively and chronologically)
139: if ($env{'form.catalogmode'} eq 'import' || $hash{'form.catalogmode'} eq 'import') {
140: &Apache::groupsort::update_actions_hash(\%hash);
141: }
142:
143: {
144: #Hijack lonindexer to verify a title and be close down.
145: if ($env{'form.launch'} eq '2') {
146: &Apache::loncommon::content_type($r,'text/html');
147: my $extra='';
148: if (defined($env{'form.titleelement'}) &&
149: $env{'form.titleelement'} ne '') {
150: my $verify_title = &Apache::lonnet::gettitle($env{'form.acts'});
151: # &Apache::lonnet::logthis("Hrrm $env{'form.acts'} -- $verify_title");
152: $verify_title=~s/'/\\'/g;
153: $extra='window.opener.document.forms["'.$env{'form.form'}.'"].elements["'.$env{'form.titleelement'}.'"].value=\''.$verify_title.'\';';
154: }
155: my $js = <<ENDSUBM;
156: <script type="text/javascript">
157: function load() {
158: window.opener.document.forms["$env{'form.form'}"]
159: .elements["$env{'form.element'}"]
160: .value='$env{'form.acts'}';
161: $extra
162: window.close();
163: }
164: </script>
165: ENDSUBM
166: $r->print(&Apache::loncommon::start_page(undef,$js,
167: {'only_body' =>1,
168: 'add_entries' =>
169: {'onload' => "load();"},}
170: ).
171: &Apache::loncommon::end_page());
172: return OK;
173: }
174:
175: # -------------------- refresh environment with user database values (in %hash)
176: &setvalues(\%hash,'form.catalogmode',\%env,'form.catalogmode' );
177:
178: # --------------------- define extra fields and buttons in case of special mode
179: if ($env{'form.catalogmode'} eq 'interactive') {
180: #SB $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
181: $extrafield='<td class="LC_bottom">'.
182: '<img alt="" src="'.$iconpath.'whitespace1.gif"'.
183: ' class="LC_icon" /></td>';
184: $colspan=" colspan='2' ";
185: my $cl=&mt('Close');
186: $closebutton=<<END;
187: <input type="button" name="close" value='$cl' onclick="self.close()" />
188: END
189: }
190: elsif ($env{'form.catalogmode'} eq 'import') {
191: #SB $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
192: $extrafield='<td class="LC_bottom">'.
193: '<img alt="" src="'.$iconpath.'whitespace1.gif"'.
194: ' class="LC_icon" /></td>';
195: $colspan=" colspan='2' ";
196: my $cl=&mt('Close');
197: my $gi=&mt('Import');
198: $closebutton=<<END;
199: <input type="button" name="close" value='$cl' onclick="self.close()" />
200: END
201: $groupimportbutton=<<END;
202: <input type="button" name="groupimport" value='$gi'
203: onclick="javascript:select_group()" />
204: END
205: }
206: # Additions made by Matthew to make the browser a little easier to deal
207: # with in the future.
208: #
209: # $mode (at this time) indicates if we are in edit mode.
210: # $form is the name of the form that the URL is placed when the
211: # selection is made.
212: # $element is the name of the element in $formname which receives
213: # the URL.
214: #&Apache::lonxml::debug('Checking mode, form, element');
215: &setvalues(\%hash,'form.mode' ,\%env,'form.mode' );
216: &setvalues(\%hash,'form.form' ,\%env,'form.form' );
217: &setvalues(\%hash,'form.element' ,\%env,'form.element');
218: &setvalues(\%hash,'form.titleelement',\%env,'form.titleelement');
219: &setvalues(\%hash,'form.only' ,\%env,'form.only' );
220: &setvalues(\%hash,'form.omit' ,\%env,'form.omit' );
221:
222: # Deal with 'omit' and 'only'
223: if (exists $env{'form.omit'}) {
224: @Omit = split(',',$env{'form.omit'});
225: }
226: if (exists $env{'form.only'}) {
227: @Only = split(',',$env{'form.only'});
228: }
229:
230: my $mode = $env{'form.mode'};
231: my ($form,$element,$titleelement);
232: if ($mode eq 'edit' || $mode eq 'parmset') {
233: $form = $env{'form.form'};
234: $element = $env{'form.element'};
235: $titleelement = $env{'form.titleelement'};
236: }
237: #&Apache::lonxml::debug("mode=$mode form=$form element=$element titleelement=$titleelement");
238: # ------ set catalogmodefunctions to have extra needed javascript functionality
239: my $catalogmodefunctions='';
240: if ($env{'form.catalogmode'} eq 'interactive' or
241: $env{'form.catalogmode'} eq 'import') {
242: # The if statement below sets us up to use the old version
243: # by default (ie. if $mode is undefined). This is the easy
244: # way out. Hopefully in the future I'll find a way to get
245: # the calls dealt with in a more comprehensive manner.
246:
247: #
248: # There is now also mode "simple", which is for the simple version of the rat
249: #
250: #
251: if (!defined($mode) || ($mode ne 'edit' && $mode ne 'parmset')) {
252: my $location = "/adm/groupsort?&inhibitmenu=yes&catalogmode=import&";
253: $location .= "mode=".$mode."&";
254: $location .= "acts=";
255: $catalogmodefunctions=<<"END";
256: function select_data(url) {
257: changeURL(url);
258: self.close();
259: }
260: function select_group() {
261: window.location="$location"+document.forms.fileattr.acts.value;
262: }
263: function changeURL(val) {
264: if (opener.inf) {
265: if (opener.inf.document.forms.resinfo.elements.u) {
266: opener.inf.document.forms.resinfo.elements.u.value=val;
267: }
268: }
269: }
270: END
271: } elsif ($mode eq 'edit') { # we are in 'edit' mode
272: my $location = "/adm/groupsort?catalogmode=interactive&";
273: $location .= "form=$form&element=$element&mode=edit&acts=";
274: $catalogmodefunctions=<<END;
275: // mode = $mode
276: function select_data(url) {
277: var location = "/res/?launch=2&form=$form&element=$element&titleelement=$titleelement&acts=" + url;
278: window.location=location;
279: if (window.opener.document.forms["$form"].elements["$element"].value != url) {
280: window.opener.unClean();
281: }
282: }
283: function select_group() {
284: window.location="$location"+document.forms.fileattr.acts.value;
285: }
286:
287: function changeURL(val) {
288: if (window.opener.document) {
289: window.opener.document.forms["$form"].elements["$element"].value=val;
290: } else {
291: alert("The file you selected is: "+val);
292: }
293: }
294: END
295: if (!$titleelement) {
296: $catalogmodefunctions.='function changeTitle(val) {}';
297: } else {
298: $catalogmodefunctions.=<<END;
299: function changeTitle(val) {
300: if (window.opener.document) {
301: window.opener.document.forms["$form"].elements["$titleelement"].value=val;
302: } else {
303: alert("The title of the file you selected is: "+val);
304: }
305: }
306: END
307: }
308: } elsif ($mode eq 'parmset') {
309: my $location = "/adm/groupsort?catalogmode=interactive&";
310: $location .= "form=$form&element=$element&mode=parmset&acts=";
311: $catalogmodefunctions=<<END;
312: // mode = $mode
313: function select_data(url) {
314: changeURL(url);
315: self.close();
316: }
317:
318: function select_group() {
319: window.location="$location"+document.forms.fileattr.acts.value;
320: }
321:
322: function changeURL(val) {
323: if (window.opener.document) {
324: var elementname = "$element"+"_value";
325: var checkboxname = "$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} = $cat;
522: push(@select_form_order,$types);
523: }
524: $select_file_categories{'select_form_order'} = \@select_form_order;
525: my $type_element=
526: &Apache::loncommon::select_form($typeselect,'only',
527: %select_file_categories);
528: $type_element = '<label>'.&mt('File Type Displayed: [_1]',
529: $type_element).'</label>';
530: $r->print($type_element
531: .'</fieldset>');
532: $r->print(<<END);
533: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
534: <input type="hidden" name="acts" value="" />
535: $closebutton $groupimportbutton
536: END
537: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
538:
539: # -------------- Filter out sequence containment in crumbs and "recent folders"
540: my $storeuri=$uri;
541: $storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
542: $storeuri=~s/\/+/\//g;
543: # ---------------------------------------------------------------- Bread crumbs
544: $r->print(&Apache::lonhtmlcommon::crumbs($storeuri,'','',
545: (($env{'form.catalogmode'} eq 'import')?
546: 'document.forms.fileattr':'')).
547: &Apache::lonhtmlcommon::select_recent('residx','resrecent',
548: '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();'));
549: # -------------------------------------------------------- Resource Home Button
550: my $reshome=$env{'course.'.$env{'request.course.id'}.'.reshome'};
551: if ($reshome) {
552: $r->print("<span class=\"LC_fontsize_large\"><a href='");
553: if ($env{'form.catalogmode'} eq 'import') {
554: $r->print('javascript:document.forms.fileattr.action="'.&Apache::loncommon::inhibit_menu_check($reshome).'";document.forms.fileattr.submit();');
555: } else {
556: $r->print($reshome);
557: }
558: $r->print("'>".&mt('Home').'</a></span>');
559: }
560: $r->print('</form>');
561: # ------------------------------------------------------ Remember where we were
562: &Apache::loncommon::storeresurl($storeuri);
563: &Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
564: # -------------------------------------------------- Check All and Uncheck all
565: if ($env{'form.catalogmode'} eq 'import') {
566: $r->print('<br /><input type="button" value="'.&mt("Check All").'" id="checkallbutton" onclick="javascript:checkAll()" />');
567: $r->print('<input type="button" value="'.&mt("Uncheck All").'" id="uncheckallbutton" onclick="javascript:uncheckAll()" />');
568: }
569: # ----------------- output starting row to the indexed file/directory hierarchy
570: #$r->print(&initdebug());
571: #$r->print(&writedebug("Omit:@Omit")) if (@Omit);
572: #$r->print(&writedebug("Only:@Only")) if (@Only);
573: $r->print('<br /><br />');
574: $r->print(&Apache::loncommon::start_data_table("LC_tableBrowseRes")
575: .&Apache::loncommon::start_data_table_header_row());
576: $r->print("<th $colspan>".&mt('Name')."</th>\n");
577: $r->print("<th>".&mt('Title')."</th>\n")
578: if ($hash{'display_attrs_0'} == 1);
579: $r->print('<th class="LC_right">'.&mt("Size")." (".&mt("bytes").") ".
580: "</th>\n") if ($hash{'display_attrs_1'} == 1);
581: $r->print("<th>".&mt("Last accessed")."</th>\n")
582: if ($hash{'display_attrs_2'} == 1);
583: $r->print("<th>".&mt("Last modified")."</th>\n")
584: if ($hash{'display_attrs_3'} == 1);
585: $r->print("<th>".&mt("Author(s)")."</th>\n")
586: if ($hash{'display_attrs_4'} == 1);
587: $r->print("<th>".&mt("Keywords")."</th>\n")
588: if ($hash{'display_attrs_5'} == 1);
589: $r->print("<th>".&mt("Language")."</th>\n")
590: if ($hash{'display_attrs_6'} == 1);
591: $r->print("<th>".&mt("Usage Statistics")." <br />(".
592: &mt("Courses/Network Hits").") ".&mt('updated periodically')."</th>\n")
593: if ($hash{'display_attrs_8'} == 1);
594: $r->print("<th>".&mt("Source Available")."</th>\n")
595: if ($hash{'display_attrs_10'} == 1);
596: $r->print("<th>".&mt("Linked/Related Resources")."</th>\n")
597: if ($hash{'display_attrs_11'} == 1);
598: $r->print("<th>".&mt("Resource")."</th>\n")
599: if ($hash{'display_attrs_7'} == 1);
600: $r->print("<th>".&mt("Subject")."</th>\n")
601: if ($hash{'display_attrs_12'} == 1);
602: $r->print("<th>".&mt("Notes")."</th>\n")
603: if ($hash{'display_attrs_13'} == 1);
604: $r->print("<th>".&mt("Abstract")."</th>\n")
605: if ($hash{'display_attrs_14'} == 1);
606: $r->print("<th>".&mt("Grade Level")."</th>\n")
607: if ($hash{'display_attrs_15'} == 1);
608: $r->print("<th>".&mt("Standards")."</th>\n")
609: if ($hash{'display_attrs_16'} == 1);
610:
611: $r->print(&Apache::loncommon::end_data_table_header_row());
612:
613:
614:
615: # ----------------- read in what directories have previously been set to "open"
616: foreach (keys %hash) {
617: if ($_ =~ /^diropen_status_/) {
618: my $key = $_;
619: $key =~ s/^diropen_status_//;
620: $dirs{$key} = $hash{$_};
621: }
622: }
623:
624: if ($env{'form.openuri'}) { # take care of review and refresh options
625: my $uri=$env{'form.openuri'};
626: if (exists($hash{'diropen_status_'.$uri})) {
627: my $cursta = $hash{'diropen_status_'.$uri};
628: $dirs{$uri} = 'open';
629: $hash{'diropen_status_'.$uri} = 'open';
630: if ($cursta eq 'open') {
631: $dirs{$uri} = 'closed';
632: $hash{'diropen_status_'.$uri} = 'closed';
633: }
634: } else {
635: $hash{'diropen_status_'.$uri} = 'open';
636: $dirs{$uri} = 'open';
637: }
638: }
639:
640: my $toplevel;
641: my $indent = 0;
642: $uri = $uri.'/' if $uri !~ /.*\/$/;
643:
644: if ($env{'form.dirPointer'} ne 'on') {
645: $hash{'top.level'} = $uri;
646: $toplevel = $uri;
647: } else {
648: $toplevel = $hash{'top.level'};
649: }
650:
651: # -------------------------------- if not at top level, provide an uplink arrow
652: if ($toplevel ne '/res/'){
653: my (@uri_com) = split(/\//,$uri);
654: pop @uri_com;
655: my $upone = join('/',@uri_com);
656: my @list = qw (0);
657: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
658: $indent = 1;
659: }
660:
661: # -------- recursively go through all the directories and output as appropriate
662: &scanDir ($r,$toplevel,$indent,\%hash);
663:
664: # -------------------------------------------------------------- end the tables
665: $r->print(&Apache::loncommon::end_data_table());
666:
667: # ---------------------------- embed hidden information useful for group import
668: $r->print("<form name='fnum' action=''>");
669: $r->print("<input type='hidden' name='fnum' value='$fnum' /></form>");
670:
671: # --------------------------------------------------- end the output and return
672: $r->print(&Apache::loncommon::end_page()."\n");
673: }
674: if(! $c->aborted()) {
675: # write back into the temporary file
676: my %dbfile;
677: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
678: while (my($key,$value) = each(%hash)) {
679: $dbfile{$key}=$value;
680: }
681: untie(%dbfile);
682: }
683: }
684:
685: return OK;
686: }
687:
688: # ----------------------------------------------- recursive scan of a directory
689: sub scanDir {
690: my ($r,$startdir,$indent,$hashref)=@_;
691: my $c = $r->connection();
692: my ($compuri,$curdir);
693: my $dirptr=16384;
694: my $obs;
695: $indent++;
696: my %dupdirs = %dirs;
697: my @list=&get_list($r,$startdir);
698: foreach my $line (@list) {
699: return if ($c->aborted());
700: #This is a kludge, sorry aboot this
701: my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
702: next if($strip =~ /.*\.meta$/ | $obs eq '1');
703: my (@fileparts) = split(/\./,$strip);
704: if ($hash{'display_attrs_9'} != 1) {
705: # if not all versions to be shown
706: if (scalar(@fileparts) >= 3) {
707: my $fext = pop @fileparts;
708: my $ov = pop @fileparts;
709: my $fname = join ('.',@fileparts,$fext);
710: next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
711: }
712: }
713:
714: if ($dom eq 'domain') {
715: # dom list has full path /res/<domain name>/ already
716: $curdir='';
717: $compuri = (split(/\&/,$line))[0];
718: } else {
719: # user, dir & file have name only, i.e., w/o path
720: $compuri = join('',$startdir,$strip,'/');
721: $curdir = $startdir;
722: }
723: my $diropen = 'closed';
724: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
725: while (my ($key,$val)= each %dupdirs) {
726: if ($key eq $compuri and $val eq "open") {
727: $diropen = "opened";
728: delete($dupdirs{$key});
729: delete($dirs{$key});
730: }
731: }
732: }
733: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
734: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
735: }
736: $indent--;
737: }
738:
739: # --------------- get complete matched list based on the uri (returns an array)
740: sub get_list {
741: my ($r,$uri)=@_;
742: my @list=();
743: (my $luri = $uri) =~ s/\//_/g;
744: if ($env{'form.updatedisplay'}) {
745: foreach (keys %hash) {
746: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
747: delete $hash{$_} if ($_ =~ /^dirlist_timestamp_files_/);
748: }
749: }
750:
751: if (defined($hash{'dirlist_files_'.$luri}) &&
752: $hash{'dirlist_timestamp_files_'.$luri}+600 > (time)) {
753: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
754: } elsif ($uri=~/\.(page|sequence)\/$/) {
755: # is a page or a sequence
756: $uri=~s/\/$//;
757: $uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
758: $uri=~s/\/+/\//g;
759: foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
760: my @ratpart=split(/\:/,$_);
761: push(@list,&LONCAPA::map::qtescape($ratpart[1]));
762: }
763: $hash{'dirlist_files_'.$luri} = join("\n",@list);
764: } else {
765: # is really a directory
766: @list = &Apache::lonnet::dirlist($uri);
767: $hash{'dirlist_files_'.$luri} = join("\n",@list);
768: $hash{'dirlist_timestamp_files_'.$luri} = time;
769: }
770: return @list=&match_ext($r,@list);
771: }
772:
773: sub dynmetaread {
774: my $uri=shift;
775: if (($hash{'display_attrs_8'}==1) || ($hash{'display_attrs_11'}==1)) {
776: # We don't want the filename
777: $uri=~s/\/[^\/]+$//;
778: # Did we already see this?
779: my $builddir=$uri;
780: while ($builddir) {
781: if ($dynread{$builddir}) {
782: return 0;
783: }
784: $builddir=~s/\/[^\/]+$//;
785: }
786: # Actually get the data
787: %dynhash=
788: (%dynhash,&Apache::lonmeta::get_dynamic_metadata_from_sql($uri.'/'));
789: # Remember that we got it
790: $dynread{$uri}=1;
791: }
792: }
793:
794: sub initdebug {
795: my $start_page=
796: &Apache::loncommon::start_page('Debug',undef,
797: {'only_body' => 1,});
798: $start_page =~ s/\n/ /g;
799: return <<ENDJS;
800: <script type="text/javascript">
801: var debugging = true;
802: if (debugging) {
803: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
804: }
805:
806: function output(text) {
807: if (debugging) {
808: debuggingWindow.document.writeln(text);
809: }
810: }
811: output('$start_page<pre>');
812: </script>
813: ENDJS
814: }
815:
816: sub writedebug {
817: my ($text) = @_;
818: return "<script type=\"text/javascript\">output('$text');</script>";
819: }
820:
821: # -------------------- filters out files based on extensions (returns an array)
822: sub match_ext {
823: my ($r,@packlist)=@_;
824: my @trimlist;
825: my $nextline;
826: my @fileext;
827: my $dirptr=16384;
828:
829: foreach my $line (@packlist) {
830: chomp $line;
831: $line =~ s/^\/home\/httpd\/html//;
832: my @unpackline = split (/\&/,$line);
833: next if ($unpackline[0] eq '.');
834: next if ($unpackline[0] eq '..');
835: my @filecom = split (/\./,$unpackline[0]);
836: my $fext = pop(@filecom);
837: my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
838: if ($fnptr == 0 and $unpackline[3] ne "") {
839: my $embstyle = &Apache::loncommon::fileembstyle($fext);
840: push @trimlist,$line if (defined($embstyle) &&
841: ($embstyle ne 'hdn' or $fext eq 'meta'));
842: } else {
843: push @trimlist,$line;
844: }
845: }
846: @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
847: return @trimlist;
848: }
849:
850: # ------------------------------- displays one line in appropriate table format
851: sub display_line {
852: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
853: my (@pathfn, $fndir);
854: # there could be relative paths (files actually belonging into this directory)
855: # or absolute paths (for example, from sequences)
856: my $absolute;
857: my $pathprefix;
858: if ($line=~m|^/res/| && $startdir ne '') {
859: $absolute=1;
860: $pathprefix='';
861: } else {
862: $absolute=0;
863: $pathprefix=$startdir;
864: }
865: my $dirptr=16384;
866: #SB my $fileclr="#ffffe6";
867: my $iconpath= $r->dir_config('lonIconsURL') . '/';
868:
869: my @filecom = split (/\&/,$line);
870: my @pathcom = split (/\//,$filecom[0]);
871: my $listname = $pathcom[scalar(@pathcom)-1];
872: my $fnptr = $filecom[3]&$dirptr;
873: my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
874: $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
875: my $nowOpen = ($diropen eq 'opened' ? 1 : 0);
876:
877: my $tabtag='</td>';
878: my $i=0;
879: while ($i<=16) {
880: $tabtag=join('',$tabtag,"<td> </td>")
881: if ($i != 9 &&
882: $hash{'display_attrs_'.$i} == 1);
883: $i++;
884: }
885: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
886:
887: # display uplink arrow
888: if ($filecom[1] eq 'viewOneUp') {
889: my $updir=$startdir;
890: # -------------- Filter out sequence containment in crumbs and "recent folders"
891: $updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
892: $updir=~s/\/+/\//g;
893:
894: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
895: $r->print(&Apache::loncommon::start_data_table_row()); # valign="$valign" ?!?
896: $r->print($extrafield);
897: $r->print("<td>\n");
898: $r->print ('<form method="post" name="dirpathUP" action="'.$updir.
899: '/" '.
900: 'onsubmit="return rep_dirpath(\'UP\','.
901: 'document.forms.fileattr.acts.value)" '.
902: 'enctype="application/x-www-form-urlencoded"'.
903: '>'."\n");
904: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
905: $r->print ('<input type="hidden" name="openuri" value="'.
906: $startdir.'" />'."\n");
907: $r->print ('<input type="hidden" name="acts" value="" />'."\n");
908: $r->print ('<a href="#" onclick="document.dirpathUP.submit()"><img src="'.$iconpath.'arrow.up.gif"');
909: $r->print (' alt="'.$msg.'" class="LC_fileicon" />'.
910: "\n");
911: $r->print(&mt("Up")."</a></form>$tabtag");
912: $r->print(&Apache::loncommon::end_data_table_row());
913: return OK;
914: }
915: # Do we have permission to look at this?
916: if($filecom[15] ne '1') { return OK if ((!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])) && (!&Apache::lonnet::allowed('bro',$pathprefix.$filecom[0]))); }
917:
918: # make absolute links appear on different background
919: #SB if ($absolute) { $fileclr='#ccdd99'; }
920:
921: # display domain
922: if ($filecom[1] eq 'domain') {
923: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n")
924: if ($env{'form.dirPointer'} eq "on");
925: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
926: $r->print(&Apache::loncommon::start_data_table_row()); # valign="$valign" ?!?"
927: $r->print($extrafield);
928: $r->print("<td>");
929: &begin_form ($r,$filecom[0]);
930: my $anchor = $filecom[0];
931: $anchor =~ s/\W//g;
932: $r->print ('<a name="'.$anchor.'"></a>');
933: $r->print ('<input type="hidden" name="acts" value="" />');
934: $r->print ('<a href="#" onclick="document.dirpath'.($dnum-1).'.submit()"><img src="'.$iconpath.'arrow.'.($nowOpen ? "open" : "closed" ).'.gif"');
935: $r->print (' alt="'.$msg.'" class="LC_fileicon" /></a>'.
936: "\n");
937: my $quotable_filecom = &Apache::loncommon::escape_single($filecom[0]);
938: $r->print ('<a href="javascript:gothere(\''.$quotable_filecom.
939: '\')"><img alt="" src="'.$iconpath.'server.gif"');
940: $r->print (' class="LC_fileicon" />'."\n");
941: $r->print (&mt("Domain")." - $listname </a>");
942: if (&Apache::lonnet::domain($listname,'description')) {
943: $r->print("<br />(".&Apache::lonnet::domain($listname,'description').
944: ")");
945: }
946: $r->print("</form>$tabtag");
947: $r->print(&Apache::loncommon::end_data_table_row());
948: return OK;
949:
950: # display user directory
951: }
952: if ($filecom[1] eq 'user') {
953: # $r->print("<tr valign=$valign bgcolor=\"$fileclr\">$extrafield");
954: my $curdir = $startdir.$filecom[0].'/';
955: my $anchor = $curdir;
956: $anchor =~ s/\W//g;
957: #SB $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
958: $r->print(&Apache::loncommon::start_data_table_row()
959: .$extrafield.'<td class="LC_'.$valign.'">');
960: &begin_form ($r,$curdir);
961: $r->print ('<a name="'.$anchor.'"></a><img alt="" src="'.$iconpath.
962: 'whitespace_21.gif" class="LC_icon" />'."\n");
963: $r->print ('<input type="hidden" name="acts" value="" />');
964: $r->print ('<a href="#" onclick="document.dirpath'.($dnum-1).'.submit()">');
965: $r->print ('<img src="'.$iconpath.'arrow.'.($nowOpen ? "open" : "closed" ).
966: '.gif" class="LC_fileicon"');
967: $r->print (' alt="'.$msg.'"/></a>'.
968: "\n");
969: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
970: $r->print ('<a href="javascript:gothere(\''.$quotable_curdir
971: .'\')"><img alt="'.$msg.'" src="'.
972: $iconpath.'quill.gif" class="LC_fileicon" />');
973: my $domain=(split(m|/|,$startdir))[2];
974: my $plainname=&Apache::loncommon::plainname($listname,$domain);
975: $r->print ($listname.'</a>');
976:
977: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
978: $r->print('</form>'.$tabtag);
979: $r->print(&Apache::loncommon::end_data_table_row());
980: return OK;
981: }
982:
983: # display file
984: if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
985: my $title;
986: my $filelink = $pathprefix.$filecom[0];
987: if ($hash{'display_attrs_0'} == 1) {
988: $title = &Apache::lonnet::gettitle($filelink);
989: }
990: my @file_ext = split (/\./,$listname);
991: my $curfext = $file_ext[-1];
992: if (@Omit) {
993: foreach (@Omit) { return OK if (lc($curfext) eq $_); }
994: }
995: if (@Only) {
996: my $skip = 1;
997: foreach (@Only) { $skip = 0 if (lc($curfext) eq $_); }
998: return OK if ($skip > 0);
999: }
1000: # Set the icon for the file
1001: my $iconname = &Apache::loncommon::icon($listname);
1002: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">);
1003: $r->print(&Apache::loncommon::start_data_table_row()); #SB valign="$valign" ?!?
1004: $r->print('<td class="LC_middle LC_nobreak">');
1005:
1006: if ($env{'form.catalogmode'} eq 'interactive') {
1007: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
1008: $r->print("<a href=\"javascript:select_data(\'",
1009: $quotable_filelink,"')\">");
1010: $r->print("<img alt=\"\" src='",$iconpath,"select.gif' class='LC_icon' /></a>".
1011: "\n");
1012: $r->print('</td><td class="LC_middle">');
1013: } elsif ($env{'form.catalogmode'} eq 'import') {
1014: $r->print("<form name='form$fnum' action=''>\n");
1015: $r->print("<input type='checkbox' name='filelink"."' ".
1016: "value='$filelink' onclick='".
1017: "javascript:queue(\"form$fnum\")' ");
1018: if ($hash{'store_'.$filelink}) {
1019: $r->print("checked");
1020: }
1021: $r->print(" />\n");
1022: $r->print('</form></td><td class="LC_middle">');
1023: $hash{"pre_${fnum}_link"}=$filelink;
1024: $hash{"pre_${fnum}_title"}=$title;
1025: if (!$hash{"pre_${fnum}_title"}) {
1026: $hash{"pre_${fnum}_title"} = 'Not_retrieved';
1027: }
1028: $fnum++;
1029: }
1030: # Form to open or close sequences
1031: if ($filelink=~/\.(page|sequence)$/) {
1032: my $curdir = $startdir.$filecom[0].'/';
1033: &begin_form($r,$curdir);
1034: $indent--;
1035: }
1036: # General indentation
1037: my $count = 0;
1038: while ($count < $indent) {
1039: $r->print('<img alt="" src="'.$iconpath.'whitespace_21.gif"
1040: class="LC_icon" />');
1041: $count++;
1042: }
1043: # Sequence open/close icon
1044: if ($filelink=~/\.(page|sequence)$/) {
1045: my $curdir = $startdir.$filecom[0].'/';
1046: my $anchor = $curdir;
1047: $anchor =~ s/\W//g;
1048: $r->print ('<input type="hidden" name="acts" value="" />');
1049: $r->print ('<a name="'.$anchor.'"></a>');
1050: $r->print ('<a href="#" onclick="document.dirpath'.($dnum-1).'.submit()">');
1051: $r->print ('<img src="'.$iconpath.'arrow.'.($nowOpen ? "open" : "closed" ).
1052: '.gif" class="LC_fileicon"');
1053: $r->print (' alt="'.$msg.'" /></a>'.
1054: "\n");
1055: }
1056: # Filetype icons
1057: $r->print("<img alt=\"\" src='$iconname' class='LC_fileicon' />\n");
1058: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
1059:
1060: $r->print (" <a href=\"javascript:openWindow('".$quotable_filelink.
1061: "?inhibitmenu=yes','previewfile','450','500','no','yes','yes');\"".
1062: " target=\"_self\">$listname</a> ");
1063: $quotable_filelink = &Apache::loncommon::escape_single($filelink.'.meta');
1064: &Apache::loncommon::inhibit_menu_check(\$quotable_filelink);
1065: $r->print (" (<a href=\"javascript:openWindow('".$quotable_filelink.
1066: "?inhibitmenu=yes','metadatafile','500','550','no','yes','no');\" ".
1067: " target=\"_self\">".&mt('metadata')."</a>) ");
1068: # Close form to open/close sequence
1069: if ($filelink=~/\.(page|sequence)$/) {
1070: $r->print('</form>');
1071: }
1072: $r->print("</td>\n");
1073: if ($hash{'display_attrs_0'} == 1) {
1074: $r->print('<td> '.($title eq '' ? ' ' : $title).
1075: ' </td>'."\n");
1076: }
1077: $r->print('<td class="LC_right"> ',
1078: $filecom[8]," </td>\n")
1079: if $hash{'display_attrs_1'} == 1;
1080: $r->print('<td class="LC_nobreak"> '.
1081: (&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
1082: if $hash{'display_attrs_2'} == 1;
1083: $r->print('<td class="LC_nobreak"> '.
1084: (&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
1085: if $hash{'display_attrs_3'} == 1;
1086:
1087: if ($hash{'display_attrs_4'} == 1) {
1088: my $author = &Apache::lonnet::metadata($filelink,'author');
1089: $r->print('<td class="LC_nobreak"> '.($author eq '' ? ' ' : $author).
1090: " </td>\n");
1091: }
1092: if ($hash{'display_attrs_5'} == 1) {
1093: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1094: # $keywords = ' ' if (!$keywords);
1095: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1096: " </td>\n");
1097: }
1098:
1099: if ($hash{'display_attrs_6'} == 1) {
1100: my $lang = &Apache::lonnet::metadata($filelink,'language');
1101: $lang = &Apache::loncommon::languagedescription($lang);
1102: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1103: " </td>\n");
1104: }
1105: if ($hash{'display_attrs_8'} == 1) {
1106: # statistics
1107: &dynmetaread($filelink);
1108: $r->print("<td>");
1109:
1110: for (qw(count course stdno avetries difficulty disc clear technical
1111: correct helpful depth)) {
1112:
1113: dynmetaprint($r,$filelink,$_);
1114: }
1115:
1116: $r->print(" </td>\n");
1117:
1118: }
1119: if ($hash{'display_attrs_10'} == 1) {
1120: my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
1121: if($source eq 'open') {
1122: my $sourcelink = &Apache::lonsource::make_link($filelink,$listname);
1123: my $quotable_sourcelink = &Apache::loncommon::escape_single($sourcelink);
1124: &Apache::loncommon::inhibit_menu_check(\$quotable_sourcelink);
1125: $r->print('<td>'."<a href=\"javascript:openWindow('"
1126: .$quotable_sourcelink.
1127: "', 'previewsource', '700', '700', 'no', 'yes','yes');\"".
1128: " target=\"_self\">".&mt('Source Code')."</a> "."</td>\n");
1129: } else { #A cuddled else. :P
1130: $r->print("<td> </td>\n");
1131: }
1132: }
1133: if ($hash{'display_attrs_11'} == 1) {
1134: # links
1135: &dynmetaread($filelink);
1136: $r->print('<td>');
1137: &coursecontext($r,$filelink);
1138: for (qw(goto_list comefrom_list sequsage_list dependencies course_list)) {
1139: dynmetaprint($r,$filelink,$_);
1140: }
1141: $r->print('</td>');
1142: }
1143:
1144:
1145:
1146: if ($hash{'display_attrs_7'} == 1) {
1147: # Show resource
1148: my $output=&showpreview($filelink);
1149: $r->print('<td class="LC_fontsize_medium">'.($output eq '' ? ' ':$output).
1150: " </td>\n");
1151: }
1152:
1153: if ($hash{'display_attrs_12'} == 1) {
1154: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1155: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1156: " </td>\n");
1157: }
1158:
1159: if ($hash{'display_attrs_13'} == 1) {
1160: my $notes = &Apache::lonnet::metadata($filelink,'notes');
1161: $r->print('<td> '.($notes eq '' ? ' ' : $notes).
1162: " </td>\n");
1163: }
1164:
1165: if ($hash{'display_attrs_14'} == 1) {
1166: my $abstract = &Apache::lonnet::metadata($filelink,'abstract');
1167: $r->print('<td> '.($abstract eq '' ? ' ' : $abstract).
1168: " </td>\n");
1169: }
1170:
1171: if ($hash{'display_attrs_15'} == 1) {
1172: my $gradelevel = &Apache::lonnet::metadata($filelink,'gradelevel');
1173: $r->print('<td> '.($gradelevel eq '' ? ' ' : $gradelevel).
1174: " </td>\n");
1175: }
1176:
1177: if ($hash{'display_attrs_16'} == 1) {
1178: my $standards = &Apache::lonnet::metadata($filelink,'standards');
1179: $r->print('<td> '.($standards eq '' ? ' ' : $standards).
1180: " </td>\n");
1181: }
1182:
1183: $r->print(&Apache::loncommon::end_data_table_row());
1184: }
1185:
1186:
1187:
1188: # -- display directory
1189: if ($fnptr == $dirptr) {
1190: my $curdir = $startdir.$filecom[0].'/';
1191: my $anchor = $curdir;
1192: $anchor =~ s/\W//g;
1193: #SB $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
1194: $r->print(&Apache::loncommon::start_data_table_row()); # SB: bgcolor suggestion: darkgrey ("LC_info_row"?!?)
1195: # $r->print('<tr class="LC_info_row">');
1196: $r->print($extrafield.'<td class="LC_middle LC_nobreak">');
1197: &begin_form ($r,$curdir);
1198: my $indentm1 = $indent-1;
1199: my $count = 0;
1200: while ($count < $indentm1) {
1201: $r->print ('<img alt="" src="',$iconpath
1202: ,'whitespace_21.gif" class="LC_icon" />');
1203: $count++;
1204: }
1205: $r->print ('<input type="hidden" name="acts" value="" />');
1206: $r->print ('<a name="'.$anchor.'"></a>');
1207: $r->print ('<a href="#" onclick="document.dirpath'.($dnum-1).'.submit()"><img src="'.$iconpath.
1208: 'arrow.'.($nowOpen ? "open" : "closed" ).'.gif"');
1209: $r->print (' alt="'.$msg.'" class="LC_fileicon" /></a>'.
1210: "\n");
1211: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
1212:
1213: my $location = &Apache::loncommon::lonhttpdurl("/adm/lonIcons");
1214: my $icon = "navmap.folder.".($nowOpen ? "open":"closed").'.gif';
1215: $r->print ('<a href="javascript:gothere(\''
1216: .$quotable_curdir.'\')"">'
1217: .'<img class="LC_fileicon" alt="'.&mt('Open Folder').'" src="'.
1218: $location."/".$icon.'" />'.
1219: "\n");
1220: $r->print ("$listname</a></form></td>\n");
1221: # Attributes
1222: my $filelink = $startdir.$filecom[0].'/default';
1223:
1224: if ($hash{'display_attrs_0'} == 1) {
1225: my $title = &Apache::lonnet::gettitle($filelink);
1226: $r->print('<td> '.($title eq '' ? ' ' : $title).
1227: ' </td>'."\n");
1228: }
1229: $r->print('<td class="LC_right"> ',
1230: $filecom[8]," </td>\n")
1231: if $hash{'display_attrs_1'} == 1;
1232: $r->print('<td class="LC_break"> '.
1233: (&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
1234: if $hash{'display_attrs_2'} == 1;
1235: $r->print('<td class="LC_break"> '.
1236: (&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
1237: if $hash{'display_attrs_3'} == 1;
1238:
1239: if ($hash{'display_attrs_4'} == 1) {
1240: my $author = &Apache::lonnet::metadata($filelink,'author');
1241: $r->print('<td> '.($author eq '' ? ' ' : $author).
1242: " </td>\n");
1243: }
1244: if ($hash{'display_attrs_5'} == 1) {
1245: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1246: # $keywords = ' ' if (!$keywords);
1247: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1248: " </td>\n");
1249: }
1250: if ($hash{'display_attrs_6'} == 1) {
1251: my $lang = &Apache::lonnet::metadata($filelink,'language');
1252: $lang = &Apache::loncommon::languagedescription($lang);
1253: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1254: " </td>\n");
1255: }
1256:
1257: if ($hash{'display_attrs_8'} == 1) {
1258: $r->print('<td> </td>');
1259: }
1260: if ($hash{'display_attrs_10'} == 1) {
1261: $r->print('<td> </td>');
1262: }
1263: if ($hash{'display_attrs_7'} == 1) {
1264: $r->print('<td> </td>');
1265: }
1266: if ($hash{'display_attrs_11'} == 1) {
1267: $r->print('<td> </td>');
1268: }
1269: if ($hash{'display_attrs_12'} == 1) {
1270: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1271: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1272: " </td>\n");
1273: }
1274: if ($hash{'display_attrs_13'} == 1) {
1275: my $notes = &Apache::lonnet::metadata($filelink,'notes');
1276: $r->print('<td> '.($notes eq '' ? ' ' : $notes).
1277: " </td>\n");
1278: }
1279:
1280: if ($hash{'display_attrs_14'} == 1) {
1281: my $abstract = &Apache::lonnet::metadata($filelink,'abstract');
1282: $r->print('<td> '.($abstract eq '' ? ' ' : $abstract).
1283: " </td>\n");
1284: }
1285:
1286: if ($hash{'display_attrs_15'} == 1) {
1287: my $gradelevel = &Apache::lonnet::metadata($filelink,'gradelevel');
1288: $r->print('<td> '.($gradelevel eq '' ? ' ' : $gradelevel).
1289: " </td>\n");
1290: }
1291:
1292: if ($hash{'display_attrs_16'} == 1) {
1293: my $standards = &Apache::lonnet::metadata($filelink,'standards');
1294: $r->print('<td> '.($standards eq '' ? ' ' : $standards).
1295: " </td>\n");
1296: }
1297:
1298:
1299: $r->print(&Apache::loncommon::end_data_table_row());
1300: }
1301:
1302: }
1303:
1304: sub coursecontext {
1305: my ($r,$filelink)=@_;
1306: my $filesymb=&Apache::lonnet::symbread($filelink);
1307: if ($filesymb) {
1308: my ($map,$index,$resource)=&Apache::lonnet::decode_symb($filesymb);
1309: $r->print(&mt('Already in this course:<br />[_1] in folder/map [_2].<br />',
1310: &Apache::lonnet::gettitle($resource),
1311: &Apache::lonnet::gettitle($map)));
1312: }
1313: }
1314:
1315: sub showpreview {
1316: my ($filelink)=@_;
1317: if ($filelink=~m-^(/ext/|http://)-) {
1318: return &mt('External Resource, preview not enabled');
1319: }
1320: my ($curfext)=($filelink=~/\.(\w+)$/);
1321: my $output='';
1322: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
1323: if ($embstyle eq 'ssi') {
1324: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
1325: '.tmp';
1326: if ((!$env{'form.updatedisplay'}) &&
1327: (-e $cache)) {
1328: open(FH,$cache);
1329: $output=join("\n",<FH>);
1330: close(FH);
1331: } else {
1332: # In update display mode, remove old cache. This is done to retroactively
1333: # clean up course context renderings.
1334: if (-e $cache) {
1335: unlink($cache);
1336: }
1337: $output=&Apache::lonnet::ssi_body($filelink);
1338: # Is access denied? Don't render, don't store
1339: if ($output=~/LONCAPAACCESSCONTROLERRORSCREEN/s) {
1340: $output='';
1341: # Was this rendered in course content? Don't store
1342: } elsif (!&Apache::lonnet::symbread($filelink)) {
1343: open(FH,">$cache");
1344: print FH $output;
1345: close(FH);
1346: }
1347: }
1348: } elsif ($embstyle eq 'img') {
1349: $output='<img alt="'.&mt('Preview').'" src="'.$filelink.'" />';
1350: } elsif ($filelink=~m{^/res/($match_domain)/($match_username)/}) {
1351: $output='<img alt="'.&mt('Preview').'" src="http://'.
1352: &Apache::lonnet::hostname(&Apache::lonnet::homeserver($2,$1)).
1353: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1354: }
1355: return $output;
1356: }
1357:
1358: sub dynmetaprint {
1359: my ($r,$filelink,$item)=@_;
1360: if ($dynhash{$filelink}->{$item}) {
1361: $r->print("\n<br />".$fieldnames{$item}.': '.
1362: &Apache::lonmeta::prettyprint($item,
1363: $dynhash{$filelink}->{$item},
1364: (($env{'form.catalogmode'} ne 'import')?'preview':''),
1365: '',
1366: (($env{'form.catalogmode'} eq 'import')?'document.forms.fileattr':''),1));
1367: }
1368: }
1369:
1370: # ------------------- prints the beginning of a form for directory or file link
1371: sub begin_form {
1372: my ($r,$uri) = @_;
1373: my $anchor = $uri;
1374: $anchor =~ s/\W//g;
1375: $uri=&Apache::loncommon::escape_single($uri);
1376: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1377: '#'.$anchor.
1378: '" onsubmit="return rep_dirpath(\''.$dnum.'\''.
1379: ',document.forms.fileattr.acts.value)" '.
1380: 'enctype="application/x-www-form-urlencoded">'."\n");
1381: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'" />'.
1382: "\n");
1383: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n");
1384: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
1385: $dnum++;
1386: }
1387:
1388: # --------- settings whenever the user causes the indexer window to be launched
1389: sub start_fresh_session {
1390: my ($hash) = @_;
1391: delete $hash->{'form.catalogmode'};
1392: delete $hash->{'form.mode'};
1393: delete $hash->{'form.form'};
1394: delete $hash->{'form.element'};
1395: delete $hash->{'form.omit'};
1396: delete $hash->{'form.only'};
1397: foreach (keys %{$hash}) {
1398: delete $hash->{$_} if (/^(pre_|store)/);
1399: }
1400: }
1401:
1402: # ------------------------------------------------------------------- setvalues
1403: sub setvalues {
1404: # setvalues is used in registerurl to synchronize the database
1405: # hash and environment hashes
1406: my ($H1,$h1key,$H2,$h2key) =@_;
1407: #
1408: if (exists $H2->{$h2key}) {
1409: $H1->{$h1key} = $H2->{$h2key};
1410: } elsif (exists $H1->{$h1key}) {
1411: $H2->{$h2key} = $H1->{$h1key};
1412: }
1413: }
1414:
1415: 1;
1416:
1417: sub cleanup {
1418: if (tied(%hash)){
1419: &Apache::lonnet::logthis('Cleanup indexer: hash');
1420: }
1421: return OK;
1422: }
1423:
1424:
1425:
1426:
1427:
1428: =head1 NAME
1429:
1430: Apache::lonindexer - mod_perl module for cross server filesystem browsing
1431:
1432: =head1 SYNOPSIS
1433:
1434: Invoked by /etc/httpd/conf/srm.conf:
1435:
1436: <LocationMatch "^/res.*/$">
1437: SetHandler perl-script
1438: PerlHandler Apache::lonindexer
1439: </LocationMatch>
1440:
1441: =head1 INTRODUCTION
1442:
1443: This module enables a scheme of browsing across a cross server.
1444:
1445: This is part of the LearningOnline Network with CAPA project
1446: described at http://www.lon-capa.org.
1447:
1448: =head1 BEGIN SUBROUTINE
1449:
1450: This routine is only run once after compilation.
1451:
1452: =over 4
1453:
1454: =item *
1455:
1456: Initializes %language hash table.
1457:
1458: =back
1459:
1460: =head1 HANDLER SUBROUTINE
1461:
1462: This routine is called by Apache and mod_perl.
1463:
1464: =over 4
1465:
1466: =item *
1467:
1468: read in machine configuration variables
1469:
1470: =item *
1471:
1472: see if called from an interactive mode
1473:
1474: =item *
1475:
1476: refresh environment with user database values (in %hash)
1477:
1478: =item *
1479:
1480: define extra fields and buttons in case of special mode
1481:
1482: =item *
1483:
1484: set catalogmodefunctions to have extra needed javascript functionality
1485:
1486: =item *
1487:
1488: print header
1489:
1490: =item *
1491:
1492: evaluate actions from previous page (both cumulatively and chronologically)
1493:
1494: =item *
1495:
1496: output title
1497:
1498: =item *
1499:
1500: get state of file attributes to be showing
1501:
1502: =item *
1503:
1504: output state of file attributes to be showing
1505:
1506: =item *
1507:
1508: output starting row to the indexed file/directory hierarchy
1509:
1510: =item *
1511:
1512: read in what directories have previously been set to "open"
1513:
1514: =item *
1515:
1516: if not at top level, provide an uplink arrow
1517:
1518: =item *
1519:
1520: recursively go through all the directories and output as appropriate
1521:
1522: =item *
1523:
1524: information useful for group import
1525:
1526: =item *
1527:
1528: end the tables
1529:
1530: =item *
1531:
1532: end the output and return
1533:
1534: =back
1535:
1536: =head1 OTHER SUBROUTINES
1537:
1538: =over 4
1539:
1540: =item *
1541:
1542: scanDir - recursive scan of a directory
1543:
1544: =item *
1545:
1546: get_list - get complete matched list based on the uri (returns an array)
1547:
1548: =item *
1549:
1550: match_ext - filters out files based on extensions (returns an array)
1551:
1552: =item *
1553:
1554: display_line - displays one line in appropriate table format
1555:
1556: =item *
1557:
1558: begin_form - prints the beginning of a form for directory or file link
1559:
1560: =item *
1561:
1562: start_fresh_session - settings whenever the user causes the indexer window
1563: to be launched
1564:
1565: =back
1566:
1567: =cut
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