1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.181.4.5 2010/03/31 00:41:44 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 = "$element"+"_value";
323: var checkboxname = "$element"+"_setparmval";
324: window.opener.document.forms["$form"].elements[elementname].value=val;
325: window.opener.document.forms["$form"].elements[checkboxname].checked=true;
326: } else {
327: alert("The file you selected is: "+val);
328: }
329: }
330:
331: END
332: }
333: }
334: $catalogmodefunctions.=<<END;
335: var acts='';
336: function rep_dirpath(suffix,val) {
337: eval("document.forms.dirpath"+suffix+".acts.value=val");
338: }
339: END
340: if ($env{'form.catalogmode'} eq 'import') {
341: $catalogmodefunctions.=<<END;
342: function queue(val) {
343: if (eval("document.forms."+val+".filelink.checked")) {
344: var l=val.length;
345: var v=val.substring(4,l);
346: document.forms.fileattr.acts.value+='1a'+v+'b';
347: }
348: else {
349: var l=val.length;
350: var v=val.substring(4,l);
351: document.forms.fileattr.acts.value+='0a'+v+'b';
352: }
353: }
354: END
355: }
356:
357: my $inhibit_menu = "+'&".&Apache::loncommon::inhibit_menu_check()."'";
358: # ---------------------------------------------------------------- Print Header
359:
360: my $js = <<"ENDHEADER";
361: <script type="text/javascript">
362: $catalogmodefunctions;
363: function update_only(field) {
364: alert(field.name);
365: }
366: function checkAll() {
367: var numForms = document.forms.length;
368: for (i=0;i<numForms;i++) {
369: var numElements = document.forms[i].elements.length;
370: for (j=0;j<numElements;j++){
371: var fieldName = document.forms[i].elements[j].name;
372: if (fieldName == 'filelink') {
373: document.forms[i].elements[j].checked = true;
374: queue(document.forms[i].name);
375: }
376: }
377: }
378: }
379: function uncheckAll() {
380: var numForms = document.forms.length;
381: for (i=0;i<numForms;i++) {
382: var numElements = document.forms[i].elements.length;
383: for (j=0;j<numElements;j++){
384: var fieldName = document.forms[i].elements[j].name;
385: if (fieldName == 'filelink') {
386: document.forms[i].elements[j].checked = false;
387: queue(document.forms[i].name);
388: }
389: }
390: }
391: }
392: function openWindow(url, wdwName, w, h, toolbar,scrollbar,locationbar) {
393: var xpos = (screen.width-w)/2;
394: xpos = (xpos < 0) ? '0' : xpos;
395: var ypos = (screen.height-h)/2-30;
396: ypos = (ypos < 0) ? '0' : ypos;
397: var options = "width=" + w + ",height=" + h + ",screenx="+xpos+",screeny="+ypos+",";
398: options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
399: options += "menubar=no,toolbar="+toolbar+",location="+locationbar+",directories=no";
400: var newWin = window.open(url, wdwName, options);
401: newWin.focus();
402: }
403: function gothere(val) {
404: window.location=val+'?acts='+document.forms.fileattr.acts.value$inhibit_menu;
405: }
406: </script>
407: ENDHEADER
408:
409: my ($headerdom)=($uri=~m{^/res/($match_domain)/});
410: my %args = (
411: 'domain' => $headerdom,
412: );
413: if ($env{'form.catalogmode'}) {
414: # "Popup mode"
415: $args{'only_body'} = 1;
416: }
417: $r->print(&Apache::loncommon::start_page('Browse Resources',$js,\%args));
418: # ---------------------------------- get state of file types to be showing
419: if ($env{'form.only'}) {
420: $typeselect = $env{'form.only'};
421: } else {
422: $typeselect = '';
423: }
424:
425: # ---------------------------------- get state of file attributes to be showing
426: if ($env{'form.attrs'}) {
427: for (my $i=0; $i<=16; $i++) {
428: delete $hash{'display_attrs_'.$i};
429: if ($env{'form.attr'.$i} == 1) {
430: $attrchk[$i] = 'checked="checked"';
431: $hash{'display_attrs_'.$i} = 1;
432: }
433: }
434: } else {
435: for (my $i=0; $i<=16; $i++) {
436: $attrchk[$i] = 'checked="checked"' if $hash{'display_attrs_'.$i} == 1;
437: }
438: }
439:
440: my @file_categories = &Apache::loncommon::filecategories();
441: my %select_file_categories;
442: my @select_form_order = ('');
443: $select_file_categories{''} = &mt('All file types');
444: foreach my $cat (@file_categories) {
445: my $types = join(",",&Apache::loncommon::filecategorytypes($cat));
446: $select_file_categories{$types} = &mt($cat);
447: push(@select_form_order,$types);
448: }
449: $select_file_categories{'select_form_order'} = \@select_form_order;
450: my $type_element=
451: &Apache::loncommon::select_form(
452: $typeselect,
453: 'only',
454: %select_file_categories);
455: my $type_selector = '<label>'.&mt('File Type Displayed: [_1]',
456: $type_element).'</label>';
457:
458: # ------------------------------- output state of file attributes to be showing
459: # All versions has to the last item
460: # since it does not take an extra col
461:
462: my %lt=&Apache::lonlocal::texthash(
463: 'av' => 'All versions',
464: 'ud' => 'Update Display',
465: 'pr' => 'Problems',
466: 'gr' => 'Graphics',
467: 'at' => 'All types',
468: 'hd' => 'Display Options'
469: );
470: my @disp_order = ('0','4','5','6','13','1','2','3','10','14','8','11','7','12','15','16');
471: my %disp_options = &Apache::lonlocal::texthash (
472: 0 => 'Title',
473: 4 => 'Author',
474: 5 => 'Keywords',
475: 6 => 'Language',
476: 13 => 'Notes',
477: 1 => 'Size',
478: 2 => 'Last access',
479: 3 => 'Last modified',
480: 10 => 'Source Available',
481: 14 => 'Abstract',
482: 8 => 'Statistics',
483: 11 => 'Linked/Related Resources',
484: 7 => 'Show resource',
485: 12 => 'Subject',
486: 15 => 'Grade Level',
487: 16 => 'Standards',
488: );
489: my $cell = 0;
490: my $numinrow = 4;
491: $r->print('
492: <form method="post" name="fileattr" action="'.$uri.'" enctype="application/x-www-form-urlencoded">
493: <fieldset>
494: <legend><b>'.$lt{'hd'}.'</b></legend>
495: <table style=" border-collapse: collapse; border-style: none;">'."\n");
496: foreach my $item (@disp_order) {
497: my $style = 'padding-left: 12px; padding-right: 8px;';
498: if ($cell%$numinrow == 0) {
499: $r->print('<tr>');
500: }
501: $cell ++;
502: if ($cell > 3 * $numinrow) {
503: $style .= ' padding-bottom: 6px;';
504: }
505: if (defined($disp_options{$item})) {
506: $r->print('<td style="'.$style.'"><span class="LC_nobreak">'.
507: '<label><input type="checkbox" name="attr'.$item.'" value="1" '.
508: $attrchk[$item].' onclick="this.form.submit();" /> '.$disp_options{$item}.
509: '</label></span></td>'."\n");
510: }
511: if ($cell > 1 && $cell%$numinrow == 0) {
512: $r->print('</tr>');
513: }
514: }
515: $r->print(<<END);
516: <tr>
517: <td style="font-style: italic; border-top: 1px solid black; padding-top: 6px">
518: <label><input type="checkbox" name="attr9" value="1" $attrchk[9] onclick="this.form.submit();" /> $lt{'av'}</label>
519: </td>
520: <td colspan="3" style="padding-left:8px; padding-top: 4px; font-style: italic; border-top: 1px solid black; padding-top: 8px">$type_selector</td>
521: </tr>
522: </table>
523: <input type="hidden" name="attrs" value="1" />
524: </fieldset>
525: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
526: <input type="hidden" name="acts" value="" />
527: $closebutton $groupimportbutton
528: END
529: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
530:
531: # -------------- Filter out sequence containment in crumbs and "recent folders"
532: my $storeuri=$uri;
533: $storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
534: $storeuri=~s/\/+/\//g;
535: # ---------------------------------------------------------------- Bread crumbs
536: $r->print(&Apache::lonhtmlcommon::crumbs($storeuri,'','',
537: (($env{'form.catalogmode'} eq 'import')?
538: 'document.forms.fileattr':'')).
539: &Apache::lonhtmlcommon::select_recent('residx','resrecent',
540: '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();'));
541: # -------------------------------------------------------- Resource Home Button
542: my $reshome=$env{'course.'.$env{'request.course.id'}.'.reshome'};
543: if ($reshome) {
544: $r->print("<font size='+2'><a href='");
545: if ($env{'form.catalogmode'} eq 'import') {
546: $r->print('javascript:document.forms.fileattr.action="'.&Apache::loncommon::inhibit_menu_check($reshome).'";document.forms.fileattr.submit();');
547: } else {
548: $r->print($reshome);
549: }
550: $r->print("'>".&mt('Home').'</a></font>');
551: }
552: $r->print('</form>');
553: # ------------------------------------------------------ Remember where we were
554: &Apache::loncommon::storeresurl($storeuri);
555: &Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
556: # -------------------------------------------------- Check All and Uncheck all
557: if ($env{'form.catalogmode'} eq 'import') {
558: $r->print('<br /><input type="button" value="'.&mt("Check All").'" id="checkallbutton" onclick="javascript:checkAll()" />');
559: $r->print('<input type="button" value="'.&mt("Uncheck All").'" id="uncheckallbutton" onclick="javascript:uncheckAll()" />');
560: }
561: # ----------------- output starting row to the indexed file/directory hierarchy
562: my $titleclr="#ddffff";
563: #$r->print(&initdebug());
564: #$r->print(&writedebug("Omit:@Omit")) if (@Omit);
565: #$r->print(&writedebug("Only:@Only")) if (@Only);
566: $r->print('<table width="100%" border="0"><tr><td bgcolor="#777777">'."\n");
567: $r->print('<table width="100%" border="0"><tr bgcolor="'.$titleclr.'">'."\n");
568: $r->print("<td $colspan><b>".&mt('Name')."</b></td>\n");
569: $r->print("<td><b>".&mt('Title')."</b></td>\n")
570: if ($hash{'display_attrs_0'} == 1);
571: $r->print("<td align=right><b>".&mt("Size")." (".&mt("bytes").") ".
572: "</b></td>\n") if ($hash{'display_attrs_1'} == 1);
573: $r->print("<td><b>".&mt("Last accessed")."</b></td>\n")
574: if ($hash{'display_attrs_2'} == 1);
575: $r->print("<td><b>".&mt("Last modified")."</b></td>\n")
576: if ($hash{'display_attrs_3'} == 1);
577: $r->print("<td><b>".&mt("Author(s)")."</b></td>\n")
578: if ($hash{'display_attrs_4'} == 1);
579: $r->print("<td><b>".&mt("Keywords")."</b></td>\n")
580: if ($hash{'display_attrs_5'} == 1);
581: $r->print("<td><b>".&mt("Language")."</b></td>\n")
582: if ($hash{'display_attrs_6'} == 1);
583: $r->print("<td><b>".&mt("Usage Statistics")." <br />(".
584: &mt("Courses/Network Hits").")</b> ".&mt('updated periodically')."</td>\n")
585: if ($hash{'display_attrs_8'} == 1);
586: $r->print("<td><b>".&mt("Source Available")."</b></td>\n")
587: if ($hash{'display_attrs_10'} == 1);
588: $r->print("<td><b>".&mt("Linked/Related Resources")."</b></td>\n")
589: if ($hash{'display_attrs_11'} == 1);
590: $r->print("<td><b>".&mt("Resource")."</b></td>\n")
591: if ($hash{'display_attrs_7'} == 1);
592: $r->print("<td><b>".&mt("Subject")."</b></td>\n")
593: if ($hash{'display_attrs_12'} == 1);
594: $r->print("<td><b>".&mt("Notes")."</b></td>\n")
595: if ($hash{'display_attrs_13'} == 1);
596: $r->print("<td><b>".&mt("Abstract")."</b></td>\n")
597: if ($hash{'display_attrs_14'} == 1);
598: $r->print("<td><b>".&mt("Grade Level")."</b></td>\n")
599: if ($hash{'display_attrs_15'} == 1);
600: $r->print("<td><b>".&mt("Standards")."</b></td>\n")
601: if ($hash{'display_attrs_16'} == 1);
602: $r->print('</tr>');
603:
604: # ----------------- read in what directories have previously been set to "open"
605: foreach (keys %hash) {
606: if ($_ =~ /^diropen_status_/) {
607: my $key = $_;
608: $key =~ s/^diropen_status_//;
609: $dirs{$key} = $hash{$_};
610: }
611: }
612:
613: if ($env{'form.openuri'}) { # take care of review and refresh options
614: my $uri=$env{'form.openuri'};
615: if (exists($hash{'diropen_status_'.$uri})) {
616: my $cursta = $hash{'diropen_status_'.$uri};
617: $dirs{$uri} = 'open';
618: $hash{'diropen_status_'.$uri} = 'open';
619: if ($cursta eq 'open') {
620: $dirs{$uri} = 'closed';
621: $hash{'diropen_status_'.$uri} = 'closed';
622: }
623: } else {
624: $hash{'diropen_status_'.$uri} = 'open';
625: $dirs{$uri} = 'open';
626: }
627: }
628:
629: my $toplevel;
630: my $indent = 0;
631: $uri = $uri.'/' if $uri !~ /.*\/$/;
632:
633: if ($env{'form.dirPointer'} ne 'on') {
634: $hash{'top.level'} = $uri;
635: $toplevel = $uri;
636: } else {
637: $toplevel = $hash{'top.level'};
638: }
639:
640: # -------------------------------- if not at top level, provide an uplink arrow
641: if ($toplevel ne '/res/'){
642: my (@uri_com) = split(/\//,$uri);
643: pop @uri_com;
644: my $upone = join('/',@uri_com);
645: my @list = qw (0);
646: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
647: $indent = 1;
648: }
649:
650: # -------- recursively go through all the directories and output as appropriate
651: &scanDir ($r,$toplevel,$indent,\%hash);
652:
653:
654: # -------------------------------------------------------------- end the tables
655: $r->print('</table>');
656: # ---------------------------- embed hidden information useful for group import
657: $r->print("<form name='fnum' action=''>");
658: $r->print("<input type='hidden' name='fnum' value='$fnum' /></form>");
659: # -------------------------------------------------------------- end the tables
660: $r->print('</td></tr></table>');
661:
662: # --------------------------------------------------- end the output and return
663: $r->print(&Apache::loncommon::end_page()."\n");
664: }
665: if(! $c->aborted()) {
666: # write back into the temporary file
667: my %dbfile;
668: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
669: while (my($key,$value) = each(%hash)) {
670: $dbfile{$key}=$value;
671: }
672: untie(%dbfile);
673: }
674: }
675:
676: return OK;
677: }
678:
679: # ----------------------------------------------- recursive scan of a directory
680: sub scanDir {
681: my ($r,$startdir,$indent,$hashref)=@_;
682: my $c = $r->connection();
683: my ($compuri,$curdir);
684: my $dirptr=16384;
685: my $obs;
686: $indent++;
687: my %dupdirs = %dirs;
688: my @list=&get_list($r,$startdir);
689: foreach my $line (@list) {
690: return if ($c->aborted());
691: #This is a kludge, sorry aboot this
692: my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
693: next if($strip =~ /.*\.meta$/ | $obs eq '1');
694: my (@fileparts) = split(/\./,$strip);
695: if ($hash{'display_attrs_9'} != 1) {
696: # if not all versions to be shown
697: if (scalar(@fileparts) >= 3) {
698: my $fext = pop @fileparts;
699: my $ov = pop @fileparts;
700: my $fname = join ('.',@fileparts,$fext);
701: next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
702: }
703: }
704:
705: if ($dom eq 'domain') {
706: # dom list has full path /res/<domain name>/ already
707: $curdir='';
708: $compuri = (split(/\&/,$line))[0];
709: } else {
710: # user, dir & file have name only, i.e., w/o path
711: $compuri = join('',$startdir,$strip,'/');
712: $curdir = $startdir;
713: }
714: my $diropen = 'closed';
715: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
716: while (my ($key,$val)= each %dupdirs) {
717: if ($key eq $compuri and $val eq "open") {
718: $diropen = "opened";
719: delete($dupdirs{$key});
720: delete($dirs{$key});
721: }
722: }
723: }
724: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
725: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
726: }
727: $indent--;
728: }
729:
730: # --------------- get complete matched list based on the uri (returns an array)
731: sub get_list {
732: my ($r,$uri)=@_;
733: my @list=();
734: (my $luri = $uri) =~ s/\//_/g;
735: if ($env{'form.updatedisplay'}) {
736: foreach (keys %hash) {
737: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
738: delete $hash{$_} if ($_ =~ /^dirlist_timestamp_files_/);
739: }
740: }
741:
742: if (defined($hash{'dirlist_files_'.$luri}) &&
743: $hash{'dirlist_timestamp_files_'.$luri}+600 > (time)) {
744: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
745: } elsif ($uri=~/\.(page|sequence)\/$/) {
746: # is a page or a sequence
747: $uri=~s/\/$//;
748: $uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
749: $uri=~s/\/+/\//g;
750: foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
751: my @ratpart=split(/\:/,$_);
752: push(@list,&LONCAPA::map::qtescape($ratpart[1]));
753: }
754: $hash{'dirlist_files_'.$luri} = join("\n",@list);
755: } else {
756: # is really a directory
757: @list = &Apache::lonnet::dirlist($uri);
758: $hash{'dirlist_files_'.$luri} = join("\n",@list);
759: $hash{'dirlist_timestamp_files_'.$luri} = time;
760: }
761: return @list=&match_ext($r,@list);
762: }
763:
764: sub dynmetaread {
765: my $uri=shift;
766: if (($hash{'display_attrs_8'}==1) || ($hash{'display_attrs_11'}==1)) {
767: # We don't want the filename
768: $uri=~s/\/[^\/]+$//;
769: # Did we already see this?
770: my $builddir=$uri;
771: while ($builddir) {
772: if ($dynread{$builddir}) {
773: return 0;
774: }
775: $builddir=~s/\/[^\/]+$//;
776: }
777: # Actually get the data
778: %dynhash=
779: (%dynhash,&Apache::lonmeta::get_dynamic_metadata_from_sql($uri.'/'));
780: # Remember that we got it
781: $dynread{$uri}=1;
782: }
783: }
784:
785: sub initdebug {
786: my $start_page=
787: &Apache::loncommon::start_page('Debug',undef,
788: {'only_body' => 1,});
789: $start_page =~ s/\n/ /g;
790: return <<ENDJS;
791: <script type="text/javascript">
792: var debugging = true;
793: if (debugging) {
794: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
795: }
796:
797: function output(text) {
798: if (debugging) {
799: debuggingWindow.document.writeln(text);
800: }
801: }
802: output('$start_page<pre>');
803: </script>
804: ENDJS
805: }
806:
807: sub writedebug {
808: my ($text) = @_;
809: return "<script type=\"text/javascript\">output('$text');</script>";
810: }
811:
812: # -------------------- filters out files based on extensions (returns an array)
813: sub match_ext {
814: my ($r,@packlist)=@_;
815: my @trimlist;
816: my $nextline;
817: my @fileext;
818: my $dirptr=16384;
819:
820: foreach my $line (@packlist) {
821: chomp $line;
822: $line =~ s/^\/home\/httpd\/html//;
823: my @unpackline = split (/\&/,$line);
824: next if ($unpackline[0] eq '.');
825: next if ($unpackline[0] eq '..');
826: my @filecom = split (/\./,$unpackline[0]);
827: my $fext = pop(@filecom);
828: my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
829: if ($fnptr == 0 and $unpackline[3] ne "") {
830: my $embstyle = &Apache::loncommon::fileembstyle($fext);
831: push @trimlist,$line if (defined($embstyle) &&
832: ($embstyle ne 'hdn' or $fext eq 'meta'));
833: } else {
834: push @trimlist,$line;
835: }
836: }
837: @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
838: return @trimlist;
839: }
840:
841: # ------------------------------- displays one line in appropriate table format
842: sub display_line {
843: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
844: my (@pathfn, $fndir);
845: # there could be relative paths (files actually belonging into this directory)
846: # or absolute paths (for example, from sequences)
847: my $absolute;
848: my $pathprefix;
849: if ($line=~m|^/res/| && $startdir ne '') {
850: $absolute=1;
851: $pathprefix='';
852: } else {
853: $absolute=0;
854: $pathprefix=$startdir;
855: }
856: my $dirptr=16384;
857: my $fileclr="#ffffe6";
858: my $iconpath= $r->dir_config('lonIconsURL') . '/';
859:
860: my @filecom = split (/\&/,$line);
861: my @pathcom = split (/\//,$filecom[0]);
862: my $listname = $pathcom[scalar(@pathcom)-1];
863: my $fnptr = $filecom[3]&$dirptr;
864: my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
865: $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
866:
867: my $tabtag='</td>';
868: my $i=0;
869: while ($i<=16) {
870: $tabtag=join('',$tabtag,"<td> </td>")
871: if ($i != 9 &&
872: $hash{'display_attrs_'.$i} == 1);
873: $i++;
874: }
875: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
876:
877: # display uplink arrow
878: if ($filecom[1] eq 'viewOneUp') {
879: my $updir=$startdir;
880: # -------------- Filter out sequence containment in crumbs and "recent folders"
881: $updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
882: $updir=~s/\/+/\//g;
883:
884: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
885: $r->print("<td>\n");
886: $r->print ('<form method="post" name="dirpathUP" action="'.$updir.
887: '/" '.
888: 'onsubmit="return rep_dirpath(\'UP\','.
889: 'document.forms.fileattr.acts.value)" '.
890: 'enctype="application/x-www-form-urlencoded"'.
891: '>'."\n");
892: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
893: $r->print ('<input type="hidden" name="openuri" value="'.
894: $startdir.'" />'."\n");
895: $r->print ('<input type="hidden" name="acts" value="" />'."\n");
896: $r->print ('<input src="'.$iconpath.'arrow_up.gif"');
897: $r->print (' name="'.$msg.'" alt="'.$msg.'" type="image" class="LC_indexer_icon" />'.
898: "\n");
899: $r->print(&mt("Up")."</form>$tabtag</tr>\n");
900: return OK;
901: }
902: # Do we have permission to look at this?
903:
904: if($filecom[15] ne '1') { return OK if ((!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])) && (!&Apache::lonnet::allowed('bro',$pathprefix.$filecom[0]))); }
905:
906: # make absolute links appear on different background
907: if ($absolute) { $fileclr='#ccdd99'; }
908:
909: # display domain
910: if ($filecom[1] eq 'domain') {
911: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n")
912: if ($env{'form.dirPointer'} eq "on");
913: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
914: $r->print("<td>");
915: &begin_form ($r,$filecom[0]);
916: my $anchor = $filecom[0];
917: $anchor =~ s/\W//g;
918: $r->print ('<a name="'.$anchor.'"></a>');
919: $r->print ('<input type="hidden" name="acts" value="" />');
920: $r->print ('<input src="'.$iconpath.'folder_pointer_'.
921: $diropen.'.gif"');
922: $r->print (' name="'.$msg.'" alt="'.$msg.'" type="image" class="LC_indexer_icon" />'.
923: "\n");
924: my $quotable_filecom = &Apache::loncommon::escape_single($filecom[0]);
925: $r->print ('<a href="javascript:gothere(\''.$quotable_filecom.
926: '\')"><img alt="" src="'.$iconpath.'server.gif"');
927: $r->print (' class="LC_icon" /></a>'."\n");
928: $r->print (&mt("Domain")." - $listname ");
929: if (&Apache::lonnet::domain($listname,'description')) {
930: $r->print("(".&Apache::lonnet::domain($listname,'description').
931: ")");
932: }
933: $r->print ("</form>$tabtag</tr>\n");
934: return OK;
935:
936: # display user directory
937: }
938: if ($filecom[1] eq 'user') {
939: # $r->print("<tr valign=$valign bgcolor=\"$fileclr\">$extrafield");
940: my $curdir = $startdir.$filecom[0].'/';
941: my $anchor = $curdir;
942: $anchor =~ s/\W//g;
943: $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
944: &begin_form ($r,$curdir);
945: $r->print ('<a name="'.$anchor.'"></a><img alt="" src="'.$iconpath.
946: 'whitespace1.gif" class="LC_icon" />'."\n");
947: $r->print ('<input type="hidden" name="acts" value="" />');
948: $r->print ('<input src="'.$iconpath.'folder_pointer_'.$diropen.
949: '.gif"');
950: $r->print (' name="'.$msg.'" alt="'.$msg.'" type="image" class="LC_indexer_icon" />'.
951: "\n");
952: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
953: $r->print ('<a href="javascript:gothere(\''.$quotable_curdir
954: .'\')"><img alt="'.$msg.'" src="'.
955: $iconpath.'quill.gif" class="LC_indexer_icon" /></a>');
956: my $domain=(split(m|/|,$startdir))[2];
957: my $plainname=&Apache::loncommon::plainname($listname,$domain);
958: $r->print ($listname);
959: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
960: $r->print ('</form>'.$tabtag.'</tr>'."\n");
961: return OK;
962: }
963:
964: # display file
965: if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
966: my $title;
967: my $filelink = $pathprefix.$filecom[0];
968: if ($hash{'display_attrs_0'} == 1) {
969: $title = &Apache::lonnet::gettitle($filelink);
970: }
971: my @file_ext = split (/\./,$listname);
972: my $curfext = $file_ext[-1];
973: if (@Omit) {
974: foreach (@Omit) { return OK if (lc($curfext) eq $_); }
975: }
976: if (@Only) {
977: my $skip = 1;
978: foreach (@Only) { $skip = 0 if (lc($curfext) eq $_); }
979: return OK if ($skip > 0);
980: }
981: # Set the icon for the file
982: my $iconname = &Apache::loncommon::icon($listname);
983: $r->print('<tr valign="'.$valign.'" bgcolor="'.$fileclr.'">'.
984: '<td valign="top"><span class="LC_nobreak">');
985:
986: if ($env{'form.catalogmode'} eq 'interactive') {
987: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
988: $r->print("<a href=\"javascript:select_data(\'",
989: $quotable_filelink,"')\">");
990: $r->print("<img alt=\"\" src='",$iconpath,"select.gif' class='LC_icon' /></a>".
991: "\n");
992: $r->print('</span></td><td valign="top"><span class="LC_nobreak">');
993: } elsif ($env{'form.catalogmode'} eq 'import') {
994: $r->print("<form name='form$fnum' action=''>\n");
995: $r->print("<input type='checkbox' name='filelink"."' ".
996: "value='$filelink' onclick='".
997: "javascript:queue(\"form$fnum\")' ");
998: if ($hash{'store_'.$filelink}) {
999: $r->print("checked");
1000: }
1001: $r->print(" />\n");
1002: $r->print('</form></span></td><td valign="top"><span class="LC_nobreak">');
1003: $hash{"pre_${fnum}_link"}=$filelink;
1004: $hash{"pre_${fnum}_title"}=$title;
1005: if (!$hash{"pre_${fnum}_title"}) {
1006: $hash{"pre_${fnum}_title"} = 'Not_retrieved';
1007: }
1008: $fnum++;
1009: }
1010: # Form to open or close sequences
1011: if ($filelink=~/\.(page|sequence)$/) {
1012: my $curdir = $startdir.$filecom[0].'/';
1013: &begin_form($r,$curdir);
1014: $indent--;
1015: }
1016: # General indentation
1017: if ($indent > 0 and $indent < 16) {
1018: $r->print("<img alt=\"\" src='",$iconpath,"whitespace",$indent,
1019: ".gif' class='LC_icon' />\n");
1020: } elsif ($indent >0) {
1021: my $ten = int($indent/10.);
1022: my $rem = $indent%10.0;
1023: my $count = 0;
1024: while ($count < $ten) {
1025: $r->print("<img alt=\"\" src=".$iconpath.
1026: "whitespace10.gif class='LC_icon' />\n");
1027: $count++;
1028: }
1029: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
1030: ".gif class='LC_icon' />\n") if $rem > 0;
1031: }
1032: # Sequence open/close icon
1033: if ($filelink=~/\.(page|sequence)$/) {
1034: my $curdir = $startdir.$filecom[0].'/';
1035: my $anchor = $curdir;
1036: $anchor =~ s/\W//g;
1037: $r->print ('<input type="hidden" name="acts" value="" />');
1038: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
1039: 'folder_pointer_'.$diropen.'.gif"');
1040: $r->print (' name="'.$msg.'" alt="'.$msg.'" type="image" class="LC_indexer_icon" />'.
1041: "\n");
1042: }
1043: # Filetype icons
1044: $r->print("<img alt=\"\" src='$iconname' class='LC_icon' />\n");
1045: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
1046:
1047: $r->print (" <a href=\"javascript:openWindow('".$quotable_filelink.
1048: "?inhibitmenu=yes','previewfile','450','500','no','yes','yes');\"".
1049: " target=\"_self\">$listname</a> ");
1050: $quotable_filelink = &Apache::loncommon::escape_single($filelink.'.meta');
1051: &Apache::loncommon::inhibit_menu_check(\$quotable_filelink);
1052: $r->print (" (<a href=\"javascript:openWindow('".$quotable_filelink.
1053: "?inhibitmenu=yes','metadatafile','500','550','no','yes','no');\" ".
1054: " target=\"_self\">".&mt('metadata')."</a>) ");
1055: # Close form to open/close sequence
1056: if ($filelink=~/\.(page|sequence)$/) {
1057: $r->print('</form>');
1058: }
1059: $r->print("</span></td>\n");
1060: if ($hash{'display_attrs_0'} == 1) {
1061: $r->print('<td> '.($title eq '' ? ' ' : $title).
1062: ' </td>'."\n");
1063: }
1064: $r->print('<td align="right"> ',
1065: $filecom[8]," </td>\n")
1066: if $hash{'display_attrs_1'} == 1;
1067: $r->print('<td> '.
1068: (&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
1069: if $hash{'display_attrs_2'} == 1;
1070: $r->print('<td> '.
1071: (&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
1072: if $hash{'display_attrs_3'} == 1;
1073:
1074: if ($hash{'display_attrs_4'} == 1) {
1075: my $author = &Apache::lonnet::metadata($filelink,'author');
1076: $r->print('<td> '.($author eq '' ? ' ' : $author).
1077: " </td>\n");
1078: }
1079: if ($hash{'display_attrs_5'} == 1) {
1080: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1081: # $keywords = ' ' if (!$keywords);
1082: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1083: " </td>\n");
1084: }
1085: #'
1086:
1087: if ($hash{'display_attrs_6'} == 1) {
1088: my $lang = &Apache::lonnet::metadata($filelink,'language');
1089: $lang = &Apache::loncommon::languagedescription($lang);
1090: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1091: " </td>\n");
1092: }
1093: if ($hash{'display_attrs_8'} == 1) {
1094: # statistics
1095: &dynmetaread($filelink);
1096: $r->print("<td>");
1097: for (qw(count course stdno avetries difficulty disc clear technical
1098: correct helpful depth)) {
1099:
1100: &dynmetaprint($r,$filelink,$_);
1101: }
1102: $r->print(" </td>\n");
1103:
1104: }
1105: if ($hash{'display_attrs_10'} == 1) {
1106: my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
1107: if($source eq 'open') {
1108: my $sourcelink = &Apache::lonsource::make_link($filelink,$listname);
1109: my $quotable_sourcelink = &Apache::loncommon::escape_single($sourcelink);
1110: &Apache::loncommon::inhibit_menu_check(\$quotable_sourcelink);
1111: $r->print('<td>'."<a href=\"javascript:openWindow('"
1112: .$quotable_sourcelink.
1113: "', 'previewsource', '700', '700', 'no', 'yes','yes');\"".
1114: " target=\"_self\">".&mt('Source Code')."</a> "."</td>\n");
1115: } else { #A cuddled else. :P
1116: $r->print("<td> </td>\n");
1117: }
1118: }
1119: if ($hash{'display_attrs_11'} == 1) {
1120: # links
1121: &dynmetaread($filelink);
1122: $r->print('<td>');
1123: &coursecontext($r,$filelink);
1124: for (qw(goto_list comefrom_list sequsage_list dependencies course_list)) {
1125: &dynmetaprint($r,$filelink,$_);
1126: }
1127: $r->print('</td>');
1128: }
1129: if ($hash{'display_attrs_7'} == 1) {
1130: # Show resource
1131: my $output=&showpreview($filelink);
1132: $r->print('<td> '.($output eq '' ? ' ':$output).
1133: " </td>\n");
1134: }
1135: if ($hash{'display_attrs_12'} == 1) {
1136: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1137: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1138: " </td>\n");
1139: }
1140:
1141: if ($hash{'display_attrs_13'} == 1) {
1142: my $notes = &Apache::lonnet::metadata($filelink,'notes');
1143: $r->print('<td> '.($notes eq '' ? ' ' : $notes).
1144: " </td>\n");
1145: }
1146:
1147: if ($hash{'display_attrs_14'} == 1) {
1148: my $abstract = &Apache::lonnet::metadata($filelink,'abstract');
1149: $r->print('<td> '.($abstract eq '' ? ' ' : $abstract).
1150: " </td>\n");
1151: }
1152:
1153: if ($hash{'display_attrs_15'} == 1) {
1154: my $gradelevel = &Apache::lonnet::metadata($filelink,'gradelevel');
1155: $r->print('<td> '.($gradelevel eq '' ? ' ' : $gradelevel).
1156: " </td>\n");
1157: }
1158:
1159: if ($hash{'display_attrs_16'} == 1) {
1160: my $standards = &Apache::lonnet::metadata($filelink,'standards');
1161: $r->print('<td> '.($standards eq '' ? ' ' : $standards).
1162: " </td>\n");
1163: }
1164:
1165: $r->print("</tr>\n");
1166: }
1167:
1168: # -- display directory
1169: if ($fnptr == $dirptr) {
1170: my $curdir = $startdir.$filecom[0].'/';
1171: my $anchor = $curdir;
1172: $anchor =~ s/\W//g;
1173: $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
1174: &begin_form ($r,$curdir);
1175: my $indentm1 = $indent-1;
1176: if ($indentm1 < 16 and $indentm1 > 0) {
1177: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$indentm1,
1178: ".gif class='LC_icon' />\n");
1179: } else {
1180: my $ten = int($indentm1/10.);
1181: my $rem = $indentm1%10.0;
1182: my $count = 0;
1183: while ($count < $ten) {
1184: $r->print ("<img alt=\"\" src=",$iconpath
1185: ,"whitespace10.gif class='LC_icon' />\n");
1186: $count++;
1187: }
1188: $r->print ("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
1189: ".gif class='LC_icon' />\n") if $rem > 0;
1190: }
1191: $r->print ('<input type="hidden" name="acts" value="" />');
1192: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
1193: 'folder_pointer_'.$diropen.'.gif"');
1194: $r->print (' name="'.$msg.'" alt="'.$msg.'" type="image" class="LC_indexer_icon" />'.
1195: "\n");
1196: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
1197: $r->print ('<a href="javascript:gothere(\''
1198: .$quotable_curdir.'\')">'
1199: .'<img alt="'.&mt('Open Folder').'"src="'.
1200: $iconpath.'folder_'.$diropen.'.gif" class="LC_icon" /></a>'.
1201: "\n");
1202: $r->print ("$listname</form></td>\n");
1203: # Attributes
1204: my $filelink = $startdir.$filecom[0].'/default';
1205:
1206: if ($hash{'display_attrs_0'} == 1) {
1207: my $title = &Apache::lonnet::gettitle($filelink);
1208: $r->print('<td> '.($title eq '' ? ' ' : $title).
1209: ' </td>'."\n");
1210: }
1211: $r->print('<td align=right> ',
1212: $filecom[8]," </td>\n")
1213: if $hash{'display_attrs_1'} == 1;
1214: $r->print('<td> '.
1215: (&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
1216: if $hash{'display_attrs_2'} == 1;
1217: $r->print('<td> '.
1218: (&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
1219: if $hash{'display_attrs_3'} == 1;
1220:
1221: if ($hash{'display_attrs_4'} == 1) {
1222: my $author = &Apache::lonnet::metadata($filelink,'author');
1223: $r->print('<td> '.($author eq '' ? ' ' : $author).
1224: " </td>\n");
1225: }
1226: if ($hash{'display_attrs_5'} == 1) {
1227: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1228: # $keywords = ' ' if (!$keywords);
1229: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1230: " </td>\n");
1231: }
1232: if ($hash{'display_attrs_6'} == 1) {
1233: my $lang = &Apache::lonnet::metadata($filelink,'language');
1234: $lang = &Apache::loncommon::languagedescription($lang);
1235: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1236: " </td>\n");
1237: }
1238: if ($hash{'display_attrs_8'} == 1) {
1239: $r->print('<td> </td>');
1240: }
1241: if ($hash{'display_attrs_10'} == 1) {
1242: $r->print('<td> </td>');
1243: }
1244: if ($hash{'display_attrs_7'} == 1) {
1245: $r->print('<td> </td>');
1246: }
1247: if ($hash{'display_attrs_12'} == 1) {
1248: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1249: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1250: " </td>\n");
1251: }
1252: if ($hash{'display_attrs_11'} == 1) {
1253: $r->print('<td> </td>');
1254: }
1255: if ($hash{'display_attrs_12'} == 1) {
1256: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1257: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1258: " </td>\n");
1259: }
1260: if ($hash{'display_attrs_13'} == 1) {
1261: my $notes = &Apache::lonnet::metadata($filelink,'notes');
1262: $r->print('<td> '.($notes eq '' ? ' ' : $notes).
1263: " </td>\n");
1264: }
1265: if ($hash{'display_attrs_14'} == 1) {
1266: my $abstract = &Apache::lonnet::metadata($filelink,'abstract');
1267: $r->print('<td> '.($abstract eq '' ? ' ' : $abstract).
1268: " </td>\n");
1269: }
1270: if ($hash{'display_attrs_15'} == 1) {
1271: my $gradelevel = &Apache::lonnet::metadata($filelink,'gradelevel');
1272: $r->print('<td> '.($gradelevel eq '' ? ' ' : $gradelevel).
1273: " </td>\n");
1274: }
1275: if ($hash{'display_attrs_16'} == 1) {
1276: my $standards = &Apache::lonnet::metadata($filelink,'standards');
1277: $r->print('<td> '.($standards eq '' ? ' ' : $standards).
1278: " </td>\n");
1279: }
1280: $r->print('</tr>');
1281: }
1282:
1283: }
1284:
1285: sub coursecontext {
1286: my ($r,$filelink)=@_;
1287: my $filesymb=&Apache::lonnet::symbread($filelink);
1288: if ($filesymb) {
1289: my ($map,$index,$resource)=&Apache::lonnet::decode_symb($filesymb);
1290: $r->print(&mt('Already in this course:<br />[_1] in folder/map [_2].<br />',
1291: &Apache::lonnet::gettitle($resource),
1292: &Apache::lonnet::gettitle($map)));
1293: }
1294: }
1295:
1296: sub showpreview {
1297: my ($filelink)=@_;
1298: if ($filelink=~m-^(/ext/|http://)-) {
1299: return &mt('External Resource, preview not enabled');
1300: }
1301: my ($curfext)=($filelink=~/\.(\w+)$/);
1302: my $output='';
1303: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
1304: if ($embstyle eq 'ssi') {
1305: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
1306: '.tmp';
1307: if ((!$env{'form.updatedisplay'}) &&
1308: (-e $cache)) {
1309: open(FH,$cache);
1310: $output=join("\n",<FH>);
1311: close(FH);
1312: } else {
1313: # In update display mode, remove old cache. This is done to retroactively
1314: # clean up course context renderings.
1315: if (-e $cache) {
1316: unlink($cache);
1317: }
1318: $output=&Apache::lonnet::ssi_body($filelink);
1319: # Is access denied? Don't render, don't store
1320: if ($output=~/LONCAPAACCESSCONTROLERRORSCREEN/s) {
1321: $output='';
1322: # Was this rendered in course content? Don't store
1323: } elsif (!&Apache::lonnet::symbread($filelink)) {
1324: open(FH,">$cache");
1325: print FH $output;
1326: close(FH);
1327: }
1328: }
1329: $output='<font size="-2">'.$output.'</font>';
1330: } elsif ($embstyle eq 'img') {
1331: $output='<img alt="'.&mt('Preview').'" src="'.$filelink.'" />';
1332: } elsif ($filelink=~m{^/res/($match_domain)/($match_username)/}) {
1333: $output='<img alt="'.&mt('Preview').'" src="http://'.
1334: &Apache::lonnet::hostname(&Apache::lonnet::homeserver($2,$1)).
1335: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1336: }
1337: return $output;
1338: }
1339:
1340: sub dynmetaprint {
1341: my ($r,$filelink,$item)=@_;
1342: if ($dynhash{$filelink}->{$item}) {
1343: $r->print("\n<br />".$fieldnames{$item}.': '.
1344: &Apache::lonmeta::prettyprint($item,
1345: $dynhash{$filelink}->{$item},
1346: (($env{'form.catalogmode'} ne 'import')?'preview':''),
1347: '',
1348: (($env{'form.catalogmode'} eq 'import')?'document.forms.fileattr':''),1));
1349: }
1350: }
1351:
1352: # ------------------- prints the beginning of a form for directory or file link
1353: sub begin_form {
1354: my ($r,$uri) = @_;
1355: my $anchor = $uri;
1356: $anchor =~ s/\W//g;
1357: $uri=&Apache::loncommon::escape_single($uri);
1358: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1359: '#'.$anchor.
1360: '" onsubmit="return rep_dirpath(\''.$dnum.'\''.
1361: ',document.forms.fileattr.acts.value)" '.
1362: 'enctype="application/x-www-form-urlencoded">'."\n");
1363: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'" />'.
1364: "\n");
1365: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n");
1366: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
1367: $dnum++;
1368: }
1369:
1370: # --------- settings whenever the user causes the indexer window to be launched
1371: sub start_fresh_session {
1372: my ($hash) = @_;
1373: delete $hash->{'form.catalogmode'};
1374: delete $hash->{'form.mode'};
1375: delete $hash->{'form.form'};
1376: delete $hash->{'form.element'};
1377: delete $hash->{'form.omit'};
1378: delete $hash->{'form.only'};
1379: foreach (keys %{$hash}) {
1380: delete $hash->{$_} if (/^(pre_|store)/);
1381: }
1382: }
1383:
1384: # ------------------------------------------------------------------- setvalues
1385: sub setvalues {
1386: # setvalues is used in registerurl to synchronize the database
1387: # hash and environment hashes
1388: my ($H1,$h1key,$H2,$h2key) =@_;
1389: #
1390: if (exists $H2->{$h2key}) {
1391: $H1->{$h1key} = $H2->{$h2key};
1392: } elsif (exists $H1->{$h1key}) {
1393: $H2->{$h2key} = $H1->{$h1key};
1394: }
1395: }
1396:
1397: 1;
1398:
1399: sub cleanup {
1400: if (tied(%hash)){
1401: &Apache::lonnet::logthis('Cleanup indexer: hash');
1402: }
1403: return OK;
1404: }
1405:
1406:
1407:
1408:
1409:
1410: =head1 NAME
1411:
1412: Apache::lonindexer - mod_perl module for cross server filesystem browsing
1413:
1414: =head1 SYNOPSIS
1415:
1416: Invoked by /etc/httpd/conf/srm.conf:
1417:
1418: <LocationMatch "^/res.*/$">
1419: SetHandler perl-script
1420: PerlHandler Apache::lonindexer
1421: </LocationMatch>
1422:
1423: =head1 INTRODUCTION
1424:
1425: This module enables a scheme of browsing across a cross server.
1426:
1427: This is part of the LearningOnline Network with CAPA project
1428: described at http://www.lon-capa.org.
1429:
1430: =head1 BEGIN SUBROUTINE
1431:
1432: This routine is only run once after compilation.
1433:
1434: =over 4
1435:
1436: =item *
1437:
1438: Initializes %language hash table.
1439:
1440: =back
1441:
1442: =head1 HANDLER SUBROUTINE
1443:
1444: This routine is called by Apache and mod_perl.
1445:
1446: =over 4
1447:
1448: =item *
1449:
1450: read in machine configuration variables
1451:
1452: =item *
1453:
1454: see if called from an interactive mode
1455:
1456: =item *
1457:
1458: refresh environment with user database values (in %hash)
1459:
1460: =item *
1461:
1462: define extra fields and buttons in case of special mode
1463:
1464: =item *
1465:
1466: set catalogmodefunctions to have extra needed javascript functionality
1467:
1468: =item *
1469:
1470: print header
1471:
1472: =item *
1473:
1474: evaluate actions from previous page (both cumulatively and chronologically)
1475:
1476: =item *
1477:
1478: output title
1479:
1480: =item *
1481:
1482: get state of file attributes to be showing
1483:
1484: =item *
1485:
1486: output state of file attributes to be showing
1487:
1488: =item *
1489:
1490: output starting row to the indexed file/directory hierarchy
1491:
1492: =item *
1493:
1494: read in what directories have previously been set to "open"
1495:
1496: =item *
1497:
1498: if not at top level, provide an uplink arrow
1499:
1500: =item *
1501:
1502: recursively go through all the directories and output as appropriate
1503:
1504: =item *
1505:
1506: information useful for group import
1507:
1508: =item *
1509:
1510: end the tables
1511:
1512: =item *
1513:
1514: end the output and return
1515:
1516: =back
1517:
1518: =head1 OTHER SUBROUTINES
1519:
1520: =over 4
1521:
1522: =item *
1523:
1524: scanDir - recursive scan of a directory
1525:
1526: =item *
1527:
1528: get_list - get complete matched list based on the uri (returns an array)
1529:
1530: =item *
1531:
1532: match_ext - filters out files based on extensions (returns an array)
1533:
1534: =item *
1535:
1536: display_line - displays one line in appropriate table format
1537:
1538: =item *
1539:
1540: begin_form - prints the beginning of a form for directory or file link
1541:
1542: =item *
1543:
1544: start_fresh_session - settings whenever the user causes the indexer window
1545: to be launched
1546:
1547: =back
1548:
1549: =cut
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