1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.181.4.6 2010/04/14 16:11:34 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: 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: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
181: '<img alt="" src="'.$iconpath.'whitespace1.gif"'.
182: ' class="LC_icon" /></td>';
183: $colspan=" colspan='2' ";
184: my $cl=&mt('Close');
185: $closebutton=<<END;
186: <input type="button" name="close" value='$cl' onclick="self.close()" />
187: END
188: }
189: elsif ($env{'form.catalogmode'} eq 'import') {
190: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
191: '<img alt="" src="'.$iconpath.'whitespace1.gif"'.
192: ' class="LC_icon" /></td>';
193: $colspan=" colspan='2' ";
194: my $cl=&mt('Close');
195: my $gi=&mt('Import');
196: $closebutton=<<END;
197: <input type="button" name="close" value='$cl' onclick="self.close()" />
198: END
199: $groupimportbutton=<<END;
200: <input type="button" name="groupimport" value='$gi'
201: onclick="javascript:select_group()" />
202: END
203: }
204: # Additions made by Matthew to make the browser a little easier to deal
205: # with in the future.
206: #
207: # $mode (at this time) indicates if we are in edit mode.
208: # $form is the name of the form that the URL is placed when the
209: # selection is made.
210: # $element is the name of the element in $formname which receives
211: # the URL.
212: #&Apache::lonxml::debug('Checking mode, form, element');
213: &setvalues(\%hash,'form.mode' ,\%env,'form.mode' );
214: &setvalues(\%hash,'form.form' ,\%env,'form.form' );
215: &setvalues(\%hash,'form.element' ,\%env,'form.element');
216: &setvalues(\%hash,'form.titleelement',\%env,'form.titleelement');
217: &setvalues(\%hash,'form.only' ,\%env,'form.only' );
218: &setvalues(\%hash,'form.omit' ,\%env,'form.omit' );
219:
220: # Deal with 'omit' and 'only'
221: if (exists $env{'form.omit'}) {
222: @Omit = split(',',$env{'form.omit'});
223: }
224: if (exists $env{'form.only'}) {
225: @Only = split(',',$env{'form.only'});
226: }
227:
228: my $mode = $env{'form.mode'};
229: my ($form,$element,$titleelement);
230: if ($mode eq 'edit' || $mode eq 'parmset') {
231: $form = $env{'form.form'};
232: $element = $env{'form.element'};
233: $titleelement = $env{'form.titleelement'};
234: }
235: #&Apache::lonxml::debug("mode=$mode form=$form element=$element titleelement=$titleelement");
236: # ------ set catalogmodefunctions to have extra needed javascript functionality
237: my $catalogmodefunctions='';
238: if ($env{'form.catalogmode'} eq 'interactive' or
239: $env{'form.catalogmode'} eq 'import') {
240: # The if statement below sets us up to use the old version
241: # by default (ie. if $mode is undefined). This is the easy
242: # way out. Hopefully in the future I'll find a way to get
243: # the calls dealt with in a more comprehensive manner.
244:
245: #
246: # There is now also mode "simple", which is for the simple version of the rat
247: #
248: #
249: if (!defined($mode) || ($mode ne 'edit' && $mode ne 'parmset')) {
250: my $location = "/adm/groupsort?&inhibitmenu=yes&catalogmode=import&";
251: $location .= "mode=".$mode."&";
252: $location .= "acts=";
253: $catalogmodefunctions=<<"END";
254: function select_data(url) {
255: changeURL(url);
256: self.close();
257: }
258: function select_group() {
259: window.location="$location"+document.forms.fileattr.acts.value;
260: }
261: function changeURL(val) {
262: if (opener.inf) {
263: if (opener.inf.document.forms.resinfo.elements.u) {
264: opener.inf.document.forms.resinfo.elements.u.value=val;
265: }
266: }
267: }
268: END
269: } elsif ($mode eq 'edit') { # we are in 'edit' mode
270: my $location = "/adm/groupsort?catalogmode=interactive&";
271: $location .= "form=$form&element=$element&mode=edit&acts=";
272: $catalogmodefunctions=<<END;
273: // mode = $mode
274: function select_data(url) {
275: var location = "/res/?launch=2&form=$form&element=$element&titleelement=$titleelement&acts=" + url;
276: window.location=location;
277: if (window.opener.document.forms["$form"].elements["$element"].value != url) {
278: window.opener.unClean();
279: }
280: }
281: function select_group() {
282: window.location="$location"+document.forms.fileattr.acts.value;
283: }
284:
285: function changeURL(val) {
286: if (window.opener.document) {
287: window.opener.document.forms["$form"].elements["$element"].value=val;
288: } else {
289: alert("The file you selected is: "+val);
290: }
291: }
292: END
293: if (!$titleelement) {
294: $catalogmodefunctions.='function changeTitle(val) {}';
295: } else {
296: $catalogmodefunctions.=<<END;
297: function changeTitle(val) {
298: if (window.opener.document) {
299: window.opener.document.forms["$form"].elements["$titleelement"].value=val;
300: } else {
301: alert("The title of the file you selected is: "+val);
302: }
303: }
304: END
305: }
306: } elsif ($mode eq 'parmset') {
307: my $location = "/adm/groupsort?catalogmode=interactive&";
308: $location .= "form=$form&element=$element&mode=parmset&acts=";
309: $catalogmodefunctions=<<END;
310: // mode = $mode
311: function select_data(url) {
312: changeURL(url);
313: self.close();
314: }
315:
316: function select_group() {
317: window.location="$location"+document.forms.fileattr.acts.value;
318: }
319:
320: function changeURL(val) {
321: if (window.opener.document) {
322: var elementname = "$element";
323: window.opener.document.forms["$form"].elements[elementname].value=val;
324: } else {
325: alert("The file you selected is: "+val);
326: }
327: }
328:
329: END
330: }
331: }
332: $catalogmodefunctions.=<<END;
333: var acts='';
334: function rep_dirpath(suffix,val) {
335: eval("document.forms.dirpath"+suffix+".acts.value=val");
336: }
337: END
338: if ($env{'form.catalogmode'} eq 'import') {
339: $catalogmodefunctions.=<<END;
340: function queue(val) {
341: if (eval("document.forms."+val+".filelink.checked")) {
342: var l=val.length;
343: var v=val.substring(4,l);
344: document.forms.fileattr.acts.value+='1a'+v+'b';
345: }
346: else {
347: var l=val.length;
348: var v=val.substring(4,l);
349: document.forms.fileattr.acts.value+='0a'+v+'b';
350: }
351: }
352: END
353: }
354:
355: my $inhibit_menu = "+'&".&Apache::loncommon::inhibit_menu_check()."'";
356: # ---------------------------------------------------------------- Print Header
357:
358: my $js = <<"ENDHEADER";
359: <script type="text/javascript">
360: $catalogmodefunctions;
361: function update_only(field) {
362: alert(field.name);
363: }
364: function checkAll() {
365: var numForms = document.forms.length;
366: for (i=0;i<numForms;i++) {
367: var numElements = document.forms[i].elements.length;
368: for (j=0;j<numElements;j++){
369: var fieldName = document.forms[i].elements[j].name;
370: if (fieldName == 'filelink') {
371: document.forms[i].elements[j].checked = true;
372: queue(document.forms[i].name);
373: }
374: }
375: }
376: }
377: function uncheckAll() {
378: var numForms = document.forms.length;
379: for (i=0;i<numForms;i++) {
380: var numElements = document.forms[i].elements.length;
381: for (j=0;j<numElements;j++){
382: var fieldName = document.forms[i].elements[j].name;
383: if (fieldName == 'filelink') {
384: document.forms[i].elements[j].checked = false;
385: queue(document.forms[i].name);
386: }
387: }
388: }
389: }
390: function openWindow(url, wdwName, w, h, toolbar,scrollbar,locationbar) {
391: var xpos = (screen.width-w)/2;
392: xpos = (xpos < 0) ? '0' : xpos;
393: var ypos = (screen.height-h)/2-30;
394: ypos = (ypos < 0) ? '0' : ypos;
395: var options = "width=" + w + ",height=" + h + ",screenx="+xpos+",screeny="+ypos+",";
396: options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
397: options += "menubar=no,toolbar="+toolbar+",location="+locationbar+",directories=no";
398: var newWin = window.open(url, wdwName, options);
399: newWin.focus();
400: }
401: function gothere(val) {
402: window.location=val+'?acts='+document.forms.fileattr.acts.value$inhibit_menu;
403: }
404: </script>
405: ENDHEADER
406:
407: my ($headerdom)=($uri=~m{^/res/($match_domain)/});
408: my %args = (
409: 'domain' => $headerdom,
410: );
411: if ($env{'form.catalogmode'}) {
412: # "Popup mode"
413: $args{'only_body'} = 1;
414: }
415: $r->print(&Apache::loncommon::start_page('Browse Resources',$js,\%args));
416: # ---------------------------------- get state of file types to be showing
417: if ($env{'form.only'}) {
418: $typeselect = $env{'form.only'};
419: } else {
420: $typeselect = '';
421: }
422:
423: # ---------------------------------- get state of file attributes to be showing
424: if ($env{'form.attrs'}) {
425: for (my $i=0; $i<=16; $i++) {
426: delete $hash{'display_attrs_'.$i};
427: if ($env{'form.attr'.$i} == 1) {
428: $attrchk[$i] = 'checked="checked"';
429: $hash{'display_attrs_'.$i} = 1;
430: }
431: }
432: } else {
433: for (my $i=0; $i<=16; $i++) {
434: $attrchk[$i] = 'checked="checked"' if $hash{'display_attrs_'.$i} == 1;
435: }
436: }
437:
438: my @file_categories = &Apache::loncommon::filecategories();
439: my %select_file_categories;
440: my @select_form_order = ('');
441: $select_file_categories{''} = &mt('All file types');
442: foreach my $cat (@file_categories) {
443: my $types = join(",",&Apache::loncommon::filecategorytypes($cat));
444: $select_file_categories{$types} = &mt($cat);
445: push(@select_form_order,$types);
446: }
447: $select_file_categories{'select_form_order'} = \@select_form_order;
448: my $type_element=
449: &Apache::loncommon::select_form(
450: $typeselect,
451: 'only',
452: %select_file_categories);
453: my $type_selector = '<label>'.&mt('File Type Displayed: [_1]',
454: $type_element).'</label>';
455:
456: # ------------------------------- output state of file attributes to be showing
457: # All versions has to the last item
458: # since it does not take an extra col
459:
460: my %lt=&Apache::lonlocal::texthash(
461: 'av' => 'All versions',
462: 'ud' => 'Update Display',
463: 'pr' => 'Problems',
464: 'gr' => 'Graphics',
465: 'at' => 'All types',
466: 'hd' => 'Display Options'
467: );
468: my @disp_order = ('0','4','5','6','13','1','2','3','10','14','8','11','7','12','15','16');
469: my %disp_options = &Apache::lonlocal::texthash (
470: 0 => 'Title',
471: 4 => 'Author',
472: 5 => 'Keywords',
473: 6 => 'Language',
474: 13 => 'Notes',
475: 1 => 'Size',
476: 2 => 'Last access',
477: 3 => 'Last modified',
478: 10 => 'Source Available',
479: 14 => 'Abstract',
480: 8 => 'Statistics',
481: 11 => 'Linked/Related Resources',
482: 7 => 'Show resource',
483: 12 => 'Subject',
484: 15 => 'Grade Level',
485: 16 => 'Standards',
486: );
487: my $cell = 0;
488: my $numinrow = 4;
489: $r->print('
490: <form method="post" name="fileattr" action="'.$uri.'" enctype="application/x-www-form-urlencoded">
491: <fieldset>
492: <legend><b>'.$lt{'hd'}.'</b></legend>
493: <table style=" border-collapse: collapse; border-style: none;">'."\n");
494: foreach my $item (@disp_order) {
495: my $style = 'padding-left: 12px; padding-right: 8px;';
496: if ($cell%$numinrow == 0) {
497: $r->print('<tr>');
498: }
499: $cell ++;
500: if ($cell > 3 * $numinrow) {
501: $style .= ' padding-bottom: 6px;';
502: }
503: if (defined($disp_options{$item})) {
504: $r->print('<td style="'.$style.'"><span class="LC_nobreak">'.
505: '<label><input type="checkbox" name="attr'.$item.'" value="1" '.
506: $attrchk[$item].' onclick="this.form.submit();" /> '.$disp_options{$item}.
507: '</label></span></td>'."\n");
508: }
509: if ($cell > 1 && $cell%$numinrow == 0) {
510: $r->print('</tr>');
511: }
512: }
513: $r->print(<<END);
514: <tr>
515: <td style="font-style: italic; border-top: 1px solid black; padding-top: 6px">
516: <label><input type="checkbox" name="attr9" value="1" $attrchk[9] onclick="this.form.submit();" /> $lt{'av'}</label>
517: </td>
518: <td colspan="3" style="padding-left:8px; padding-top: 4px; font-style: italic; border-top: 1px solid black; padding-top: 8px">$type_selector</td>
519: </tr>
520: </table>
521: <input type="hidden" name="attrs" value="1" />
522: </fieldset>
523: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
524: <input type="hidden" name="acts" value="" />
525: $closebutton $groupimportbutton
526: END
527: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
528:
529: # -------------- Filter out sequence containment in crumbs and "recent folders"
530: my $storeuri=$uri;
531: $storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
532: $storeuri=~s/\/+/\//g;
533: # ---------------------------------------------------------------- Bread crumbs
534: $r->print(&Apache::lonhtmlcommon::crumbs($storeuri,'','',
535: (($env{'form.catalogmode'} eq 'import')?
536: 'document.forms.fileattr':'')).
537: &Apache::lonhtmlcommon::select_recent('residx','resrecent',
538: '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();'));
539: # -------------------------------------------------------- Resource Home Button
540: my $reshome=$env{'course.'.$env{'request.course.id'}.'.reshome'};
541: if ($reshome) {
542: $r->print("<font size='+2'><a href='");
543: if ($env{'form.catalogmode'} eq 'import') {
544: $r->print('javascript:document.forms.fileattr.action="'.&Apache::loncommon::inhibit_menu_check($reshome).'";document.forms.fileattr.submit();');
545: } else {
546: $r->print($reshome);
547: }
548: $r->print("'>".&mt('Home').'</a></font>');
549: }
550: $r->print('</form>');
551: # ------------------------------------------------------ Remember where we were
552: &Apache::loncommon::storeresurl($storeuri);
553: &Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
554: # -------------------------------------------------- Check All and Uncheck all
555: if ($env{'form.catalogmode'} eq 'import') {
556: $r->print('<br /><input type="button" value="'.&mt("Check All").'" id="checkallbutton" onclick="javascript:checkAll()" />');
557: $r->print('<input type="button" value="'.&mt("Uncheck All").'" id="uncheckallbutton" onclick="javascript:uncheckAll()" />');
558: }
559: # ----------------- output starting row to the indexed file/directory hierarchy
560: my $titleclr="#ddffff";
561: #$r->print(&initdebug());
562: #$r->print(&writedebug("Omit:@Omit")) if (@Omit);
563: #$r->print(&writedebug("Only:@Only")) if (@Only);
564: $r->print('<table width="100%" border="0"><tr><td bgcolor="#777777">'."\n");
565: $r->print('<table width="100%" border="0"><tr bgcolor="'.$titleclr.'">'."\n");
566: $r->print("<td $colspan><b>".&mt('Name')."</b></td>\n");
567: $r->print("<td><b>".&mt('Title')."</b></td>\n")
568: if ($hash{'display_attrs_0'} == 1);
569: $r->print("<td align=right><b>".&mt("Size")." (".&mt("bytes").") ".
570: "</b></td>\n") if ($hash{'display_attrs_1'} == 1);
571: $r->print("<td><b>".&mt("Last accessed")."</b></td>\n")
572: if ($hash{'display_attrs_2'} == 1);
573: $r->print("<td><b>".&mt("Last modified")."</b></td>\n")
574: if ($hash{'display_attrs_3'} == 1);
575: $r->print("<td><b>".&mt("Author(s)")."</b></td>\n")
576: if ($hash{'display_attrs_4'} == 1);
577: $r->print("<td><b>".&mt("Keywords")."</b></td>\n")
578: if ($hash{'display_attrs_5'} == 1);
579: $r->print("<td><b>".&mt("Language")."</b></td>\n")
580: if ($hash{'display_attrs_6'} == 1);
581: $r->print("<td><b>".&mt("Usage Statistics")." <br />(".
582: &mt("Courses/Network Hits").")</b> ".&mt('updated periodically')."</td>\n")
583: if ($hash{'display_attrs_8'} == 1);
584: $r->print("<td><b>".&mt("Source Available")."</b></td>\n")
585: if ($hash{'display_attrs_10'} == 1);
586: $r->print("<td><b>".&mt("Linked/Related Resources")."</b></td>\n")
587: if ($hash{'display_attrs_11'} == 1);
588: $r->print("<td><b>".&mt("Resource")."</b></td>\n")
589: if ($hash{'display_attrs_7'} == 1);
590: $r->print("<td><b>".&mt("Subject")."</b></td>\n")
591: if ($hash{'display_attrs_12'} == 1);
592: $r->print("<td><b>".&mt("Notes")."</b></td>\n")
593: if ($hash{'display_attrs_13'} == 1);
594: $r->print("<td><b>".&mt("Abstract")."</b></td>\n")
595: if ($hash{'display_attrs_14'} == 1);
596: $r->print("<td><b>".&mt("Grade Level")."</b></td>\n")
597: if ($hash{'display_attrs_15'} == 1);
598: $r->print("<td><b>".&mt("Standards")."</b></td>\n")
599: if ($hash{'display_attrs_16'} == 1);
600: $r->print('</tr>');
601:
602: # ----------------- read in what directories have previously been set to "open"
603: foreach (keys %hash) {
604: if ($_ =~ /^diropen_status_/) {
605: my $key = $_;
606: $key =~ s/^diropen_status_//;
607: $dirs{$key} = $hash{$_};
608: }
609: }
610:
611: if ($env{'form.openuri'}) { # take care of review and refresh options
612: my $uri=$env{'form.openuri'};
613: if (exists($hash{'diropen_status_'.$uri})) {
614: my $cursta = $hash{'diropen_status_'.$uri};
615: $dirs{$uri} = 'open';
616: $hash{'diropen_status_'.$uri} = 'open';
617: if ($cursta eq 'open') {
618: $dirs{$uri} = 'closed';
619: $hash{'diropen_status_'.$uri} = 'closed';
620: }
621: } else {
622: $hash{'diropen_status_'.$uri} = 'open';
623: $dirs{$uri} = 'open';
624: }
625: }
626:
627: my $toplevel;
628: my $indent = 0;
629: $uri = $uri.'/' if $uri !~ /.*\/$/;
630:
631: if ($env{'form.dirPointer'} ne 'on') {
632: $hash{'top.level'} = $uri;
633: $toplevel = $uri;
634: } else {
635: $toplevel = $hash{'top.level'};
636: }
637:
638: # -------------------------------- if not at top level, provide an uplink arrow
639: if ($toplevel ne '/res/'){
640: my (@uri_com) = split(/\//,$uri);
641: pop @uri_com;
642: my $upone = join('/',@uri_com);
643: my @list = qw (0);
644: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
645: $indent = 1;
646: }
647:
648: # -------- recursively go through all the directories and output as appropriate
649: &scanDir ($r,$toplevel,$indent,\%hash);
650:
651:
652: # -------------------------------------------------------------- end the tables
653: $r->print('</table>');
654: # ---------------------------- embed hidden information useful for group import
655: $r->print("<form name='fnum' action=''>");
656: $r->print("<input type='hidden' name='fnum' value='$fnum' /></form>");
657: # -------------------------------------------------------------- end the tables
658: $r->print('</td></tr></table>');
659:
660: # --------------------------------------------------- end the output and return
661: $r->print(&Apache::loncommon::end_page()."\n");
662: }
663: if(! $c->aborted()) {
664: # write back into the temporary file
665: my %dbfile;
666: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
667: while (my($key,$value) = each(%hash)) {
668: $dbfile{$key}=$value;
669: }
670: untie(%dbfile);
671: }
672: }
673:
674: return OK;
675: }
676:
677: # ----------------------------------------------- recursive scan of a directory
678: sub scanDir {
679: my ($r,$startdir,$indent,$hashref)=@_;
680: my $c = $r->connection();
681: my ($compuri,$curdir);
682: my $dirptr=16384;
683: my $obs;
684: $indent++;
685: my %dupdirs = %dirs;
686: my @list=&get_list($r,$startdir);
687: foreach my $line (@list) {
688: return if ($c->aborted());
689: #This is a kludge, sorry aboot this
690: my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
691: next if($strip =~ /.*\.meta$/ | $obs eq '1');
692: my (@fileparts) = split(/\./,$strip);
693: if ($hash{'display_attrs_9'} != 1) {
694: # if not all versions to be shown
695: if (scalar(@fileparts) >= 3) {
696: my $fext = pop @fileparts;
697: my $ov = pop @fileparts;
698: my $fname = join ('.',@fileparts,$fext);
699: next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
700: }
701: }
702:
703: if ($dom eq 'domain') {
704: # dom list has full path /res/<domain name>/ already
705: $curdir='';
706: $compuri = (split(/\&/,$line))[0];
707: } else {
708: # user, dir & file have name only, i.e., w/o path
709: $compuri = join('',$startdir,$strip,'/');
710: $curdir = $startdir;
711: }
712: my $diropen = 'closed';
713: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
714: while (my ($key,$val)= each %dupdirs) {
715: if ($key eq $compuri and $val eq "open") {
716: $diropen = "opened";
717: delete($dupdirs{$key});
718: delete($dirs{$key});
719: }
720: }
721: }
722: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
723: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
724: }
725: $indent--;
726: }
727:
728: # --------------- get complete matched list based on the uri (returns an array)
729: sub get_list {
730: my ($r,$uri)=@_;
731: my @list=();
732: (my $luri = $uri) =~ s/\//_/g;
733: if ($env{'form.updatedisplay'}) {
734: foreach (keys %hash) {
735: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
736: delete $hash{$_} if ($_ =~ /^dirlist_timestamp_files_/);
737: }
738: }
739:
740: if (defined($hash{'dirlist_files_'.$luri}) &&
741: $hash{'dirlist_timestamp_files_'.$luri}+600 > (time)) {
742: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
743: } elsif ($uri=~/\.(page|sequence)\/$/) {
744: # is a page or a sequence
745: $uri=~s/\/$//;
746: $uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
747: $uri=~s/\/+/\//g;
748: foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
749: my @ratpart=split(/\:/,$_);
750: push(@list,&LONCAPA::map::qtescape($ratpart[1]));
751: }
752: $hash{'dirlist_files_'.$luri} = join("\n",@list);
753: } else {
754: # is really a directory
755: @list = &Apache::lonnet::dirlist($uri);
756: $hash{'dirlist_files_'.$luri} = join("\n",@list);
757: $hash{'dirlist_timestamp_files_'.$luri} = time;
758: }
759: return @list=&match_ext($r,@list);
760: }
761:
762: sub dynmetaread {
763: my $uri=shift;
764: if (($hash{'display_attrs_8'}==1) || ($hash{'display_attrs_11'}==1)) {
765: # We don't want the filename
766: $uri=~s/\/[^\/]+$//;
767: # Did we already see this?
768: my $builddir=$uri;
769: while ($builddir) {
770: if ($dynread{$builddir}) {
771: return 0;
772: }
773: $builddir=~s/\/[^\/]+$//;
774: }
775: # Actually get the data
776: %dynhash=
777: (%dynhash,&Apache::lonmeta::get_dynamic_metadata_from_sql($uri.'/'));
778: # Remember that we got it
779: $dynread{$uri}=1;
780: }
781: }
782:
783: sub initdebug {
784: my $start_page=
785: &Apache::loncommon::start_page('Debug',undef,
786: {'only_body' => 1,});
787: $start_page =~ s/\n/ /g;
788: return <<ENDJS;
789: <script type="text/javascript">
790: var debugging = true;
791: if (debugging) {
792: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
793: }
794:
795: function output(text) {
796: if (debugging) {
797: debuggingWindow.document.writeln(text);
798: }
799: }
800: output('$start_page<pre>');
801: </script>
802: ENDJS
803: }
804:
805: sub writedebug {
806: my ($text) = @_;
807: return "<script type=\"text/javascript\">output('$text');</script>";
808: }
809:
810: # -------------------- filters out files based on extensions (returns an array)
811: sub match_ext {
812: my ($r,@packlist)=@_;
813: my @trimlist;
814: my $nextline;
815: my @fileext;
816: my $dirptr=16384;
817:
818: foreach my $line (@packlist) {
819: chomp $line;
820: $line =~ s/^\/home\/httpd\/html//;
821: my @unpackline = split (/\&/,$line);
822: next if ($unpackline[0] eq '.');
823: next if ($unpackline[0] eq '..');
824: my @filecom = split (/\./,$unpackline[0]);
825: my $fext = pop(@filecom);
826: my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
827: if ($fnptr == 0 and $unpackline[3] ne "") {
828: my $embstyle = &Apache::loncommon::fileembstyle($fext);
829: push @trimlist,$line if (defined($embstyle) &&
830: ($embstyle ne 'hdn' or $fext eq 'meta'));
831: } else {
832: push @trimlist,$line;
833: }
834: }
835: @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
836: return @trimlist;
837: }
838:
839: # ------------------------------- displays one line in appropriate table format
840: sub display_line {
841: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
842: my (@pathfn, $fndir);
843: # there could be relative paths (files actually belonging into this directory)
844: # or absolute paths (for example, from sequences)
845: my $absolute;
846: my $pathprefix;
847: if ($line=~m|^/res/| && $startdir ne '') {
848: $absolute=1;
849: $pathprefix='';
850: } else {
851: $absolute=0;
852: $pathprefix=$startdir;
853: }
854: my $dirptr=16384;
855: my $fileclr="#ffffe6";
856: my $iconpath= $r->dir_config('lonIconsURL') . '/';
857:
858: my @filecom = split (/\&/,$line);
859: my @pathcom = split (/\//,$filecom[0]);
860: my $listname = $pathcom[scalar(@pathcom)-1];
861: my $fnptr = $filecom[3]&$dirptr;
862: my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
863: $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
864:
865: my $tabtag='</td>';
866: my $i=0;
867: while ($i<=16) {
868: $tabtag=join('',$tabtag,"<td> </td>")
869: if ($i != 9 &&
870: $hash{'display_attrs_'.$i} == 1);
871: $i++;
872: }
873: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
874:
875: # display uplink arrow
876: if ($filecom[1] eq 'viewOneUp') {
877: my $updir=$startdir;
878: # -------------- Filter out sequence containment in crumbs and "recent folders"
879: $updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
880: $updir=~s/\/+/\//g;
881:
882: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
883: $r->print("<td>\n");
884: $r->print ('<form method="post" name="dirpathUP" action="'.$updir.
885: '/" '.
886: 'onsubmit="return rep_dirpath(\'UP\','.
887: 'document.forms.fileattr.acts.value)" '.
888: 'enctype="application/x-www-form-urlencoded"'.
889: '>'."\n");
890: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
891: $r->print ('<input type="hidden" name="openuri" value="'.
892: $startdir.'" />'."\n");
893: $r->print ('<input type="hidden" name="acts" value="" />'."\n");
894: $r->print ('<input src="'.$iconpath.'arrow_up.gif"');
895: $r->print (' name="'.$msg.'" alt="'.$msg.'" type="image" class="LC_indexer_icon" />'.
896: "\n");
897: $r->print(&mt("Up")."</form>$tabtag</tr>\n");
898: return OK;
899: }
900: # Do we have permission to look at this?
901:
902: if($filecom[15] ne '1') { return OK if ((!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])) && (!&Apache::lonnet::allowed('bro',$pathprefix.$filecom[0]))); }
903:
904: # make absolute links appear on different background
905: if ($absolute) { $fileclr='#ccdd99'; }
906:
907: # display domain
908: if ($filecom[1] eq 'domain') {
909: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n")
910: if ($env{'form.dirPointer'} eq "on");
911: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
912: $r->print("<td>");
913: &begin_form ($r,$filecom[0]);
914: my $anchor = $filecom[0];
915: $anchor =~ s/\W//g;
916: $r->print ('<a name="'.$anchor.'"></a>');
917: $r->print ('<input type="hidden" name="acts" value="" />');
918: $r->print ('<input src="'.$iconpath.'folder_pointer_'.
919: $diropen.'.gif"');
920: $r->print (' name="'.$msg.'" alt="'.$msg.'" type="image" class="LC_indexer_icon" />'.
921: "\n");
922: my $quotable_filecom = &Apache::loncommon::escape_single($filecom[0]);
923: $r->print ('<a href="javascript:gothere(\''.$quotable_filecom.
924: '\')"><img alt="" src="'.$iconpath.'server.gif"');
925: $r->print (' class="LC_icon" /></a>'."\n");
926: $r->print (&mt("Domain")." - $listname ");
927: if (&Apache::lonnet::domain($listname,'description')) {
928: $r->print("(".&Apache::lonnet::domain($listname,'description').
929: ")");
930: }
931: $r->print ("</form>$tabtag</tr>\n");
932: return OK;
933:
934: # display user directory
935: }
936: if ($filecom[1] eq 'user') {
937: # $r->print("<tr valign=$valign bgcolor=\"$fileclr\">$extrafield");
938: my $curdir = $startdir.$filecom[0].'/';
939: my $anchor = $curdir;
940: $anchor =~ s/\W//g;
941: $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
942: &begin_form ($r,$curdir);
943: $r->print ('<a name="'.$anchor.'"></a><img alt="" src="'.$iconpath.
944: 'whitespace1.gif" class="LC_icon" />'."\n");
945: $r->print ('<input type="hidden" name="acts" value="" />');
946: $r->print ('<input src="'.$iconpath.'folder_pointer_'.$diropen.
947: '.gif"');
948: $r->print (' name="'.$msg.'" alt="'.$msg.'" type="image" class="LC_indexer_icon" />'.
949: "\n");
950: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
951: $r->print ('<a href="javascript:gothere(\''.$quotable_curdir
952: .'\')"><img alt="'.$msg.'" src="'.
953: $iconpath.'quill.gif" class="LC_indexer_icon" /></a>');
954: my $domain=(split(m|/|,$startdir))[2];
955: my $plainname=&Apache::loncommon::plainname($listname,$domain);
956: $r->print ($listname);
957: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
958: $r->print ('</form>'.$tabtag.'</tr>'."\n");
959: return OK;
960: }
961:
962: # display file
963: if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
964: my $title;
965: my $filelink = $pathprefix.$filecom[0];
966: if ($hash{'display_attrs_0'} == 1) {
967: $title = &Apache::lonnet::gettitle($filelink);
968: }
969: my @file_ext = split (/\./,$listname);
970: my $curfext = $file_ext[-1];
971: if (@Omit) {
972: foreach (@Omit) { return OK if (lc($curfext) eq $_); }
973: }
974: if (@Only) {
975: my $skip = 1;
976: foreach (@Only) { $skip = 0 if (lc($curfext) eq $_); }
977: return OK if ($skip > 0);
978: }
979: # Set the icon for the file
980: my $iconname = &Apache::loncommon::icon($listname);
981: $r->print('<tr valign="'.$valign.'" bgcolor="'.$fileclr.'">'.
982: '<td valign="top"><span class="LC_nobreak">');
983:
984: if ($env{'form.catalogmode'} eq 'interactive') {
985: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
986: $r->print("<a href=\"javascript:select_data(\'",
987: $quotable_filelink,"')\">");
988: $r->print("<img alt=\"\" src='",$iconpath,"select.gif' class='LC_icon' /></a>".
989: "\n");
990: $r->print('</span></td><td valign="top"><span class="LC_nobreak">');
991: } elsif ($env{'form.catalogmode'} eq 'import') {
992: $r->print("<form name='form$fnum' action=''>\n");
993: $r->print("<input type='checkbox' name='filelink"."' ".
994: "value='$filelink' onclick='".
995: "javascript:queue(\"form$fnum\")' ");
996: if ($hash{'store_'.$filelink}) {
997: $r->print("checked");
998: }
999: $r->print(" />\n");
1000: $r->print('</form></span></td><td valign="top"><span class="LC_nobreak">');
1001: $hash{"pre_${fnum}_link"}=$filelink;
1002: $hash{"pre_${fnum}_title"}=$title;
1003: if (!$hash{"pre_${fnum}_title"}) {
1004: $hash{"pre_${fnum}_title"} = 'Not_retrieved';
1005: }
1006: $fnum++;
1007: }
1008: # Form to open or close sequences
1009: if ($filelink=~/\.(page|sequence)$/) {
1010: my $curdir = $startdir.$filecom[0].'/';
1011: &begin_form($r,$curdir);
1012: $indent--;
1013: }
1014: # General indentation
1015: if ($indent > 0 and $indent < 16) {
1016: $r->print("<img alt=\"\" src='",$iconpath,"whitespace",$indent,
1017: ".gif' class='LC_icon' />\n");
1018: } elsif ($indent >0) {
1019: my $ten = int($indent/10.);
1020: my $rem = $indent%10.0;
1021: my $count = 0;
1022: while ($count < $ten) {
1023: $r->print("<img alt=\"\" src=".$iconpath.
1024: "whitespace10.gif class='LC_icon' />\n");
1025: $count++;
1026: }
1027: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
1028: ".gif class='LC_icon' />\n") if $rem > 0;
1029: }
1030: # Sequence open/close icon
1031: if ($filelink=~/\.(page|sequence)$/) {
1032: my $curdir = $startdir.$filecom[0].'/';
1033: my $anchor = $curdir;
1034: $anchor =~ s/\W//g;
1035: $r->print ('<input type="hidden" name="acts" value="" />');
1036: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
1037: 'folder_pointer_'.$diropen.'.gif"');
1038: $r->print (' name="'.$msg.'" alt="'.$msg.'" type="image" class="LC_indexer_icon" />'.
1039: "\n");
1040: }
1041: # Filetype icons
1042: $r->print("<img alt=\"\" src='$iconname' class='LC_icon' />\n");
1043: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
1044:
1045: $r->print (" <a href=\"javascript:openWindow('".$quotable_filelink.
1046: "?inhibitmenu=yes','previewfile','450','500','no','yes','yes');\"".
1047: " target=\"_self\">$listname</a> ");
1048: $quotable_filelink = &Apache::loncommon::escape_single($filelink.'.meta');
1049: &Apache::loncommon::inhibit_menu_check(\$quotable_filelink);
1050: $r->print (" (<a href=\"javascript:openWindow('".$quotable_filelink.
1051: "?inhibitmenu=yes','metadatafile','500','550','no','yes','no');\" ".
1052: " target=\"_self\">".&mt('metadata')."</a>) ");
1053: # Close form to open/close sequence
1054: if ($filelink=~/\.(page|sequence)$/) {
1055: $r->print('</form>');
1056: }
1057: $r->print("</span></td>\n");
1058: if ($hash{'display_attrs_0'} == 1) {
1059: $r->print('<td> '.($title eq '' ? ' ' : $title).
1060: ' </td>'."\n");
1061: }
1062: $r->print('<td align="right"> ',
1063: $filecom[8]," </td>\n")
1064: if $hash{'display_attrs_1'} == 1;
1065: $r->print('<td> '.
1066: (&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
1067: if $hash{'display_attrs_2'} == 1;
1068: $r->print('<td> '.
1069: (&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
1070: if $hash{'display_attrs_3'} == 1;
1071:
1072: if ($hash{'display_attrs_4'} == 1) {
1073: my $author = &Apache::lonnet::metadata($filelink,'author');
1074: $r->print('<td> '.($author eq '' ? ' ' : $author).
1075: " </td>\n");
1076: }
1077: if ($hash{'display_attrs_5'} == 1) {
1078: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1079: # $keywords = ' ' if (!$keywords);
1080: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1081: " </td>\n");
1082: }
1083: #'
1084:
1085: if ($hash{'display_attrs_6'} == 1) {
1086: my $lang = &Apache::lonnet::metadata($filelink,'language');
1087: $lang = &Apache::loncommon::languagedescription($lang);
1088: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1089: " </td>\n");
1090: }
1091: if ($hash{'display_attrs_8'} == 1) {
1092: # statistics
1093: &dynmetaread($filelink);
1094: $r->print("<td>");
1095: for (qw(count course stdno avetries difficulty disc clear technical
1096: correct helpful depth)) {
1097:
1098: &dynmetaprint($r,$filelink,$_);
1099: }
1100: $r->print(" </td>\n");
1101:
1102: }
1103: if ($hash{'display_attrs_10'} == 1) {
1104: my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
1105: if($source eq 'open') {
1106: my $sourcelink = &Apache::lonsource::make_link($filelink,$listname);
1107: my $quotable_sourcelink = &Apache::loncommon::escape_single($sourcelink);
1108: &Apache::loncommon::inhibit_menu_check(\$quotable_sourcelink);
1109: $r->print('<td>'."<a href=\"javascript:openWindow('"
1110: .$quotable_sourcelink.
1111: "', 'previewsource', '700', '700', 'no', 'yes','yes');\"".
1112: " target=\"_self\">".&mt('Source Code')."</a> "."</td>\n");
1113: } else { #A cuddled else. :P
1114: $r->print("<td> </td>\n");
1115: }
1116: }
1117: if ($hash{'display_attrs_11'} == 1) {
1118: # links
1119: &dynmetaread($filelink);
1120: $r->print('<td>');
1121: &coursecontext($r,$filelink);
1122: for (qw(goto_list comefrom_list sequsage_list dependencies course_list)) {
1123: &dynmetaprint($r,$filelink,$_);
1124: }
1125: $r->print('</td>');
1126: }
1127: if ($hash{'display_attrs_7'} == 1) {
1128: # Show resource
1129: my $output=&showpreview($filelink);
1130: $r->print('<td> '.($output eq '' ? ' ':$output).
1131: " </td>\n");
1132: }
1133: if ($hash{'display_attrs_12'} == 1) {
1134: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1135: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1136: " </td>\n");
1137: }
1138:
1139: if ($hash{'display_attrs_13'} == 1) {
1140: my $notes = &Apache::lonnet::metadata($filelink,'notes');
1141: $r->print('<td> '.($notes eq '' ? ' ' : $notes).
1142: " </td>\n");
1143: }
1144:
1145: if ($hash{'display_attrs_14'} == 1) {
1146: my $abstract = &Apache::lonnet::metadata($filelink,'abstract');
1147: $r->print('<td> '.($abstract eq '' ? ' ' : $abstract).
1148: " </td>\n");
1149: }
1150:
1151: if ($hash{'display_attrs_15'} == 1) {
1152: my $gradelevel = &Apache::lonnet::metadata($filelink,'gradelevel');
1153: $r->print('<td> '.($gradelevel eq '' ? ' ' : $gradelevel).
1154: " </td>\n");
1155: }
1156:
1157: if ($hash{'display_attrs_16'} == 1) {
1158: my $standards = &Apache::lonnet::metadata($filelink,'standards');
1159: $r->print('<td> '.($standards eq '' ? ' ' : $standards).
1160: " </td>\n");
1161: }
1162:
1163: $r->print("</tr>\n");
1164: }
1165:
1166: # -- display directory
1167: if ($fnptr == $dirptr) {
1168: my $curdir = $startdir.$filecom[0].'/';
1169: my $anchor = $curdir;
1170: $anchor =~ s/\W//g;
1171: $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
1172: &begin_form ($r,$curdir);
1173: my $indentm1 = $indent-1;
1174: if ($indentm1 < 16 and $indentm1 > 0) {
1175: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$indentm1,
1176: ".gif class='LC_icon' />\n");
1177: } else {
1178: my $ten = int($indentm1/10.);
1179: my $rem = $indentm1%10.0;
1180: my $count = 0;
1181: while ($count < $ten) {
1182: $r->print ("<img alt=\"\" src=",$iconpath
1183: ,"whitespace10.gif class='LC_icon' />\n");
1184: $count++;
1185: }
1186: $r->print ("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
1187: ".gif class='LC_icon' />\n") if $rem > 0;
1188: }
1189: $r->print ('<input type="hidden" name="acts" value="" />');
1190: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
1191: 'folder_pointer_'.$diropen.'.gif"');
1192: $r->print (' name="'.$msg.'" alt="'.$msg.'" type="image" class="LC_indexer_icon" />'.
1193: "\n");
1194: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
1195: $r->print ('<a href="javascript:gothere(\''
1196: .$quotable_curdir.'\')">'
1197: .'<img alt="'.&mt('Open Folder').'"src="'.
1198: $iconpath.'folder_'.$diropen.'.gif" class="LC_icon" /></a>'.
1199: "\n");
1200: $r->print ("$listname</form></td>\n");
1201: # Attributes
1202: my $filelink = $startdir.$filecom[0].'/default';
1203:
1204: if ($hash{'display_attrs_0'} == 1) {
1205: my $title = &Apache::lonnet::gettitle($filelink);
1206: $r->print('<td> '.($title eq '' ? ' ' : $title).
1207: ' </td>'."\n");
1208: }
1209: $r->print('<td align=right> ',
1210: $filecom[8]," </td>\n")
1211: if $hash{'display_attrs_1'} == 1;
1212: $r->print('<td> '.
1213: (&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
1214: if $hash{'display_attrs_2'} == 1;
1215: $r->print('<td> '.
1216: (&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
1217: if $hash{'display_attrs_3'} == 1;
1218:
1219: if ($hash{'display_attrs_4'} == 1) {
1220: my $author = &Apache::lonnet::metadata($filelink,'author');
1221: $r->print('<td> '.($author eq '' ? ' ' : $author).
1222: " </td>\n");
1223: }
1224: if ($hash{'display_attrs_5'} == 1) {
1225: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1226: # $keywords = ' ' if (!$keywords);
1227: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1228: " </td>\n");
1229: }
1230: if ($hash{'display_attrs_6'} == 1) {
1231: my $lang = &Apache::lonnet::metadata($filelink,'language');
1232: $lang = &Apache::loncommon::languagedescription($lang);
1233: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1234: " </td>\n");
1235: }
1236: if ($hash{'display_attrs_8'} == 1) {
1237: $r->print('<td> </td>');
1238: }
1239: if ($hash{'display_attrs_10'} == 1) {
1240: $r->print('<td> </td>');
1241: }
1242: if ($hash{'display_attrs_7'} == 1) {
1243: $r->print('<td> </td>');
1244: }
1245: if ($hash{'display_attrs_12'} == 1) {
1246: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1247: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1248: " </td>\n");
1249: }
1250: if ($hash{'display_attrs_11'} == 1) {
1251: $r->print('<td> </td>');
1252: }
1253: if ($hash{'display_attrs_12'} == 1) {
1254: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1255: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1256: " </td>\n");
1257: }
1258: if ($hash{'display_attrs_13'} == 1) {
1259: my $notes = &Apache::lonnet::metadata($filelink,'notes');
1260: $r->print('<td> '.($notes eq '' ? ' ' : $notes).
1261: " </td>\n");
1262: }
1263: if ($hash{'display_attrs_14'} == 1) {
1264: my $abstract = &Apache::lonnet::metadata($filelink,'abstract');
1265: $r->print('<td> '.($abstract eq '' ? ' ' : $abstract).
1266: " </td>\n");
1267: }
1268: if ($hash{'display_attrs_15'} == 1) {
1269: my $gradelevel = &Apache::lonnet::metadata($filelink,'gradelevel');
1270: $r->print('<td> '.($gradelevel eq '' ? ' ' : $gradelevel).
1271: " </td>\n");
1272: }
1273: if ($hash{'display_attrs_16'} == 1) {
1274: my $standards = &Apache::lonnet::metadata($filelink,'standards');
1275: $r->print('<td> '.($standards eq '' ? ' ' : $standards).
1276: " </td>\n");
1277: }
1278: $r->print('</tr>');
1279: }
1280:
1281: }
1282:
1283: sub coursecontext {
1284: my ($r,$filelink)=@_;
1285: my $filesymb=&Apache::lonnet::symbread($filelink);
1286: if ($filesymb) {
1287: my ($map,$index,$resource)=&Apache::lonnet::decode_symb($filesymb);
1288: $r->print(&mt('Already in this course:<br />[_1] in folder/map [_2].<br />',
1289: &Apache::lonnet::gettitle($resource),
1290: &Apache::lonnet::gettitle($map)));
1291: }
1292: }
1293:
1294: sub showpreview {
1295: my ($filelink)=@_;
1296: if ($filelink=~m-^(/ext/|http://)-) {
1297: return &mt('External Resource, preview not enabled');
1298: }
1299: my ($curfext)=($filelink=~/\.(\w+)$/);
1300: my $output='';
1301: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
1302: if ($embstyle eq 'ssi') {
1303: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
1304: '.tmp';
1305: if ((!$env{'form.updatedisplay'}) &&
1306: (-e $cache)) {
1307: open(FH,$cache);
1308: $output=join("\n",<FH>);
1309: close(FH);
1310: } else {
1311: # In update display mode, remove old cache. This is done to retroactively
1312: # clean up course context renderings.
1313: if (-e $cache) {
1314: unlink($cache);
1315: }
1316: $output=&Apache::lonnet::ssi_body($filelink);
1317: # Is access denied? Don't render, don't store
1318: if ($output=~/LONCAPAACCESSCONTROLERRORSCREEN/s) {
1319: $output='';
1320: # Was this rendered in course content? Don't store
1321: } elsif (!&Apache::lonnet::symbread($filelink)) {
1322: open(FH,">$cache");
1323: print FH $output;
1324: close(FH);
1325: }
1326: }
1327: $output='<font size="-2">'.$output.'</font>';
1328: } elsif ($embstyle eq 'img') {
1329: $output='<img alt="'.&mt('Preview').'" src="'.$filelink.'" />';
1330: } elsif ($filelink=~m{^/res/($match_domain)/($match_username)/}) {
1331: $output='<img alt="'.&mt('Preview').'" src="http://'.
1332: &Apache::lonnet::hostname(&Apache::lonnet::homeserver($2,$1)).
1333: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1334: }
1335: return $output;
1336: }
1337:
1338: sub dynmetaprint {
1339: my ($r,$filelink,$item)=@_;
1340: if ($dynhash{$filelink}->{$item}) {
1341: $r->print("\n<br />".$fieldnames{$item}.': '.
1342: &Apache::lonmeta::prettyprint($item,
1343: $dynhash{$filelink}->{$item},
1344: (($env{'form.catalogmode'} ne 'import')?'preview':''),
1345: '',
1346: (($env{'form.catalogmode'} eq 'import')?'document.forms.fileattr':''),1));
1347: }
1348: }
1349:
1350: # ------------------- prints the beginning of a form for directory or file link
1351: sub begin_form {
1352: my ($r,$uri) = @_;
1353: my $anchor = $uri;
1354: $anchor =~ s/\W//g;
1355: $uri=&Apache::loncommon::escape_single($uri);
1356: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1357: '#'.$anchor.
1358: '" onsubmit="return rep_dirpath(\''.$dnum.'\''.
1359: ',document.forms.fileattr.acts.value)" '.
1360: 'enctype="application/x-www-form-urlencoded">'."\n");
1361: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'" />'.
1362: "\n");
1363: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n");
1364: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
1365: $dnum++;
1366: }
1367:
1368: # --------- settings whenever the user causes the indexer window to be launched
1369: sub start_fresh_session {
1370: my ($hash) = @_;
1371: delete $hash->{'form.catalogmode'};
1372: delete $hash->{'form.mode'};
1373: delete $hash->{'form.form'};
1374: delete $hash->{'form.element'};
1375: delete $hash->{'form.omit'};
1376: delete $hash->{'form.only'};
1377: foreach (keys %{$hash}) {
1378: delete $hash->{$_} if (/^(pre_|store)/);
1379: }
1380: }
1381:
1382: # ------------------------------------------------------------------- setvalues
1383: sub setvalues {
1384: # setvalues is used in registerurl to synchronize the database
1385: # hash and environment hashes
1386: my ($H1,$h1key,$H2,$h2key) =@_;
1387: #
1388: if (exists $H2->{$h2key}) {
1389: $H1->{$h1key} = $H2->{$h2key};
1390: } elsif (exists $H1->{$h1key}) {
1391: $H2->{$h2key} = $H1->{$h1key};
1392: }
1393: }
1394:
1395: 1;
1396:
1397: sub cleanup {
1398: if (tied(%hash)){
1399: &Apache::lonnet::logthis('Cleanup indexer: hash');
1400: }
1401: return OK;
1402: }
1403:
1404:
1405:
1406:
1407:
1408: =head1 NAME
1409:
1410: Apache::lonindexer - mod_perl module for cross server filesystem browsing
1411:
1412: =head1 SYNOPSIS
1413:
1414: Invoked by /etc/httpd/conf/srm.conf:
1415:
1416: <LocationMatch "^/res.*/$">
1417: SetHandler perl-script
1418: PerlHandler Apache::lonindexer
1419: </LocationMatch>
1420:
1421: =head1 INTRODUCTION
1422:
1423: This module enables a scheme of browsing across a cross server.
1424:
1425: This is part of the LearningOnline Network with CAPA project
1426: described at http://www.lon-capa.org.
1427:
1428: =head1 BEGIN SUBROUTINE
1429:
1430: This routine is only run once after compilation.
1431:
1432: =over 4
1433:
1434: =item *
1435:
1436: Initializes %language hash table.
1437:
1438: =back
1439:
1440: =head1 HANDLER SUBROUTINE
1441:
1442: This routine is called by Apache and mod_perl.
1443:
1444: =over 4
1445:
1446: =item *
1447:
1448: read in machine configuration variables
1449:
1450: =item *
1451:
1452: see if called from an interactive mode
1453:
1454: =item *
1455:
1456: refresh environment with user database values (in %hash)
1457:
1458: =item *
1459:
1460: define extra fields and buttons in case of special mode
1461:
1462: =item *
1463:
1464: set catalogmodefunctions to have extra needed javascript functionality
1465:
1466: =item *
1467:
1468: print header
1469:
1470: =item *
1471:
1472: evaluate actions from previous page (both cumulatively and chronologically)
1473:
1474: =item *
1475:
1476: output title
1477:
1478: =item *
1479:
1480: get state of file attributes to be showing
1481:
1482: =item *
1483:
1484: output state of file attributes to be showing
1485:
1486: =item *
1487:
1488: output starting row to the indexed file/directory hierarchy
1489:
1490: =item *
1491:
1492: read in what directories have previously been set to "open"
1493:
1494: =item *
1495:
1496: if not at top level, provide an uplink arrow
1497:
1498: =item *
1499:
1500: recursively go through all the directories and output as appropriate
1501:
1502: =item *
1503:
1504: information useful for group import
1505:
1506: =item *
1507:
1508: end the tables
1509:
1510: =item *
1511:
1512: end the output and return
1513:
1514: =back
1515:
1516: =head1 OTHER SUBROUTINES
1517:
1518: =over 4
1519:
1520: =item *
1521:
1522: scanDir - recursive scan of a directory
1523:
1524: =item *
1525:
1526: get_list - get complete matched list based on the uri (returns an array)
1527:
1528: =item *
1529:
1530: match_ext - filters out files based on extensions (returns an array)
1531:
1532: =item *
1533:
1534: display_line - displays one line in appropriate table format
1535:
1536: =item *
1537:
1538: begin_form - prints the beginning of a form for directory or file link
1539:
1540: =item *
1541:
1542: start_fresh_session - settings whenever the user causes the indexer window
1543: to be launched
1544:
1545: =back
1546:
1547: =cut
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