File:
[LON-CAPA] /
loncom /
interface /
lonindexer.pm
Revision
1.181.6.1:
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Wed Dec 2 17:46:46 2009 UTC (14 years, 10 months ago) by
raeburn
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GCI_2
Diff to branchpoint 1.181:
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unified
- Backport 1.183, 1.184, 1.185, 1.186, 1.187, 1.188,
1.193, 1.194, 1.195, 1.196, 1.197, part of 1.198, 1.199
1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.181.6.1 2009/12/02 17:46:46 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: # ------------------------------- output state of file attributes to be showing
441: # All versions has to the last item
442: # since it does not take an extra col
443: my %lt=&Apache::lonlocal::texthash(
444: 'ti' => 'Title',
445: 'si' => 'Size',
446: 'la' => 'Last access',
447: 'lm' => 'Last modified',
448: 'st' => 'Statistics',
449: 'au' => 'Author',
450: 'kw' => 'Keywords',
451: 'sb' => 'Subject',
452: 'nt' => 'Notes',
453: 'ab' => 'Abstract',
454: 'ln' => 'Language',
455: 'gl' => 'Grade Level',
456: 'sd' => 'Standards',
457: 'sa' => 'Source Available',
458: 'sr' => 'Show resource',
459: 'li' => 'Linked/Related Resources',
460: 'av' => 'All versions',
461: 'ud' => 'Update Display',
462: 'pr' => 'Problems',
463: 'gr' => 'Graphics',
464: 'at' => 'All types',
465: 'hd' => 'Display Options',
466: );
467: $r->print(<<END);
468: <fieldset>
469: <legend>$lt{'hd'}</legend>
470: <form method="post" name="fileattr" action="$uri" enctype="application/x-www-form-urlencoded">
471: <label><input type="checkbox" name="attr9" value="1" $attrchk[9] onclick="this.form.submit();" /> $lt{'av'}</label>
472: <table border="0">
473: <tr>
474: <td><label><input type="checkbox" name="attr0" value="1" $attrchk[0] onclick="this.form.submit();" /> $lt{'ti'}</label></td>
475: <td><label><input type="checkbox" name="attr4" value="1" $attrchk[4] onclick="this.form.submit();" /> $lt{'au'}</label></td>
476: <td><label><input type="checkbox" name="attr5" value="1" $attrchk[5] onclick="this.form.submit();" /> $lt{'kw'}</label></td>
477: <td><label><input type="checkbox" name="attr6" value="1" $attrchk[6] onclick="this.form.submit();" /> $lt{'ln'}</label></td>
478: <td><label><input type="checkbox" name="attr13" value="1" $attrchk[13] onclick="this.form.submit();" /> $lt{'nt'}</label></td>
479: <td><label><input type="checkbox" name="attr16" value="1" $attrchk[16] onclick="this.form.submit();" /> $lt{'sd'}</label></td>
480: </tr>
481: <tr>
482: <td><label><input type="checkbox" name="attr1" value="1" $attrchk[1] onclick="this.form.submit();" /> $lt{'si'}</label></td>
483: <td><label><input type="checkbox" name="attr2" value="1" $attrchk[2] onclick="this.form.submit();" /> $lt{'la'}</label></td>
484: <td><label><input type="checkbox" name="attr3" value="1" $attrchk[3] onclick="this.form.submit();" /> $lt{'lm'}</label></td>
485: <td><label><input type="checkbox" name="attr10" value="1" $attrchk[10] onclick="this.form.submit();" /> $lt{'sa'}</label></td>
486: <td><label><input type="checkbox" name="attr14" value="1" $attrchk[14] onclick="this.form.submit();" /> $lt{'ab'}</label></td>
487: <td> </td>
488: </tr>
489: <tr>
490: <td><label><input type="checkbox" name="attr8" value="1" $attrchk[8] onclick="this.form.submit();" /> $lt{'st'}</label></td>
491: <td><label><input type="checkbox" name="attr11" value="1" $attrchk[11] onclick="this.form.submit();" /> $lt{'li'}</label></td>
492: <td><label><input type="checkbox" name="attr7" value="1" $attrchk[7] onclick="this.form.submit();" /> $lt{'sr'}</label></td>
493: <td><label><input type="checkbox" name="attr12" value="1" $attrchk[12] onclick="this.form.submit();" /> $lt{'sb'}</label></td>
494: <td><label><input type="checkbox" name="attr15" value="1" $attrchk[15] onclick="this.form.submit();" /> $lt{'gl'}</label></td>
495: <td> </td>
496: </tr>
497: </table>
498: <input type="hidden" name="attrs" value="1" />
499: END
500: my @file_categories = &Apache::loncommon::filecategories();
501: my %select_file_categories;
502: my @select_form_order = ('');
503: $select_file_categories{''} = &mt('All file types');
504: foreach my $cat (@file_categories) {
505: my $types = join(",",&Apache::loncommon::filecategorytypes($cat));
506: $select_file_categories{$types} = $cat;
507: push(@select_form_order,$types);
508: }
509: $select_file_categories{'select_form_order'} = \@select_form_order;
510: my $type_element=
511: &Apache::loncommon::select_form($typeselect,'only',
512: %select_file_categories);
513: $type_element = '<label>'.&mt('File Type Displayed: [_1]',
514: $type_element).'</label>';
515: $r->print($type_element
516: .'</fieldset>');
517: $r->print(<<END);
518: <br />
519: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
520: <input type="hidden" name="acts" value="" />
521: $closebutton $groupimportbutton
522: END
523: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
524:
525: # -------------- Filter out sequence containment in crumbs and "recent folders"
526: my $storeuri=$uri;
527: $storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
528: $storeuri=~s/\/+/\//g;
529: # ---------------------------------------------------------------- Bread crumbs
530: $r->print(&Apache::lonhtmlcommon::crumbs($storeuri,'','',
531: (($env{'form.catalogmode'} eq 'import')?
532: 'document.forms.fileattr':'')).
533: &Apache::lonhtmlcommon::select_recent('residx','resrecent',
534: '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();'));
535: # -------------------------------------------------------- Resource Home Button
536: my $reshome=$env{'course.'.$env{'request.course.id'}.'.reshome'};
537: if ($reshome) {
538: $r->print("<font size='+2'><a href='");
539: if ($env{'form.catalogmode'} eq 'import') {
540: $r->print('javascript:document.forms.fileattr.action="'.&Apache::loncommon::inhibit_menu_check($reshome).'";document.forms.fileattr.submit();');
541: } else {
542: $r->print($reshome);
543: }
544: $r->print("'>".&mt('Home').'</a></font>');
545: }
546: $r->print('</form>');
547: # ------------------------------------------------------ Remember where we were
548: &Apache::loncommon::storeresurl($storeuri);
549: &Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
550: # -------------------------------------------------- Check All and Uncheck all
551: if ($env{'form.catalogmode'} eq 'import') {
552: $r->print('<br /><input type="button" value="'.&mt("Check All").'" id="checkallbutton" onclick="javascript:checkAll()" />');
553: $r->print('<input type="button" value="'.&mt("Uncheck All").'" id="uncheckallbutton" onclick="javascript:uncheckAll()" />');
554: }
555: # ----------------- output starting row to the indexed file/directory hierarchy
556: my $titleclr="#ddffff";
557: #$r->print(&initdebug());
558: #$r->print(&writedebug("Omit:@Omit")) if (@Omit);
559: #$r->print(&writedebug("Only:@Only")) if (@Only);
560: $r->print('<table width="100%" border="0"><tr><td bgcolor="#777777">'."\n");
561: $r->print('<table width="100%" border="0"><tr bgcolor="'.$titleclr.'">'."\n");
562: $r->print("<td $colspan><b>".&mt('Name')."</b></td>\n");
563: $r->print("<td><b>".&mt('Title')."</b></td>\n")
564: if ($hash{'display_attrs_0'} == 1);
565: $r->print("<td align=right><b>".&mt("Size")." (".&mt("bytes").") ".
566: "</b></td>\n") if ($hash{'display_attrs_1'} == 1);
567: $r->print("<td><b>".&mt("Last accessed")."</b></td>\n")
568: if ($hash{'display_attrs_2'} == 1);
569: $r->print("<td><b>".&mt("Last modified")."</b></td>\n")
570: if ($hash{'display_attrs_3'} == 1);
571: $r->print("<td><b>".&mt("Author(s)")."</b></td>\n")
572: if ($hash{'display_attrs_4'} == 1);
573: $r->print("<td><b>".&mt("Keywords")."</b></td>\n")
574: if ($hash{'display_attrs_5'} == 1);
575: $r->print("<td><b>".&mt("Language")."</b></td>\n")
576: if ($hash{'display_attrs_6'} == 1);
577: $r->print("<td><b>".&mt("Usage Statistics")." <br />(".
578: &mt("Courses/Network Hits").")</b> ".&mt('updated periodically')."</td>\n")
579: if ($hash{'display_attrs_8'} == 1);
580: $r->print("<td><b>".&mt("Source Available")."</b></td>\n")
581: if ($hash{'display_attrs_10'} == 1);
582: $r->print("<td><b>".&mt("Linked/Related Resources")."</b></td>\n")
583: if ($hash{'display_attrs_11'} == 1);
584: $r->print("<td><b>".&mt("Resource")."</b></td>\n")
585: if ($hash{'display_attrs_7'} == 1);
586: $r->print("<th>".&mt("Subject")."</th>\n")
587: if ($hash{'display_attrs_12'} == 1);
588: $r->print("<th>".&mt("Notes")."</th>\n")
589: if ($hash{'display_attrs_13'} == 1);
590: $r->print("<th>".&mt("Abstract")."</th>\n")
591: if ($hash{'display_attrs_14'} == 1);
592: $r->print("<th>".&mt("Grade Level")."</th>\n")
593: if ($hash{'display_attrs_15'} == 1);
594: $r->print("<th>".&mt("Standards")."</th>\n")
595: if ($hash{'display_attrs_16'} == 1);
596: $r->print('</tr>');
597:
598: # ----------------- read in what directories have previously been set to "open"
599: foreach (keys %hash) {
600: if ($_ =~ /^diropen_status_/) {
601: my $key = $_;
602: $key =~ s/^diropen_status_//;
603: $dirs{$key} = $hash{$_};
604: }
605: }
606:
607: if ($env{'form.openuri'}) { # take care of review and refresh options
608: my $uri=$env{'form.openuri'};
609: if (exists($hash{'diropen_status_'.$uri})) {
610: my $cursta = $hash{'diropen_status_'.$uri};
611: $dirs{$uri} = 'open';
612: $hash{'diropen_status_'.$uri} = 'open';
613: if ($cursta eq 'open') {
614: $dirs{$uri} = 'closed';
615: $hash{'diropen_status_'.$uri} = 'closed';
616: }
617: } else {
618: $hash{'diropen_status_'.$uri} = 'open';
619: $dirs{$uri} = 'open';
620: }
621: }
622:
623: my $toplevel;
624: my $indent = 0;
625: $uri = $uri.'/' if $uri !~ /.*\/$/;
626:
627: if ($env{'form.dirPointer'} ne 'on') {
628: $hash{'top.level'} = $uri;
629: $toplevel = $uri;
630: } else {
631: $toplevel = $hash{'top.level'};
632: }
633:
634: # -------------------------------- if not at top level, provide an uplink arrow
635: if ($toplevel ne '/res/'){
636: my (@uri_com) = split(/\//,$uri);
637: pop @uri_com;
638: my $upone = join('/',@uri_com);
639: my @list = qw (0);
640: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
641: $indent = 1;
642: }
643:
644: # -------- recursively go through all the directories and output as appropriate
645: &scanDir ($r,$toplevel,$indent,\%hash);
646:
647:
648: # -------------------------------------------------------------- end the tables
649: $r->print('</table>');
650: # ---------------------------- embed hidden information useful for group import
651: $r->print("<form name='fnum' action=''>");
652: $r->print("<input type='hidden' name='fnum' value='$fnum' /></form>");
653: # -------------------------------------------------------------- end the tables
654: $r->print('</td></tr></table>');
655:
656: # --------------------------------------------------- end the output and return
657: $r->print(&Apache::loncommon::end_page()."\n");
658: }
659: if(! $c->aborted()) {
660: # write back into the temporary file
661: my %dbfile;
662: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
663: while (my($key,$value) = each(%hash)) {
664: $dbfile{$key}=$value;
665: }
666: untie(%dbfile);
667: }
668: }
669:
670: return OK;
671: }
672:
673: # ----------------------------------------------- recursive scan of a directory
674: sub scanDir {
675: my ($r,$startdir,$indent,$hashref)=@_;
676: my $c = $r->connection();
677: my ($compuri,$curdir);
678: my $dirptr=16384;
679: my $obs;
680: $indent++;
681: my %dupdirs = %dirs;
682: my @list=&get_list($r,$startdir);
683: foreach my $line (@list) {
684: return if ($c->aborted());
685: #This is a kludge, sorry aboot this
686: my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
687: next if($strip =~ /.*\.meta$/ | $obs eq '1');
688: my (@fileparts) = split(/\./,$strip);
689: if ($hash{'display_attrs_9'} != 1) {
690: # if not all versions to be shown
691: if (scalar(@fileparts) >= 3) {
692: my $fext = pop @fileparts;
693: my $ov = pop @fileparts;
694: my $fname = join ('.',@fileparts,$fext);
695: next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
696: }
697: }
698:
699: if ($dom eq 'domain') {
700: # dom list has full path /res/<domain name>/ already
701: $curdir='';
702: $compuri = (split(/\&/,$line))[0];
703: } else {
704: # user, dir & file have name only, i.e., w/o path
705: $compuri = join('',$startdir,$strip,'/');
706: $curdir = $startdir;
707: }
708: my $diropen = 'closed';
709: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
710: while (my ($key,$val)= each %dupdirs) {
711: if ($key eq $compuri and $val eq "open") {
712: $diropen = "opened";
713: delete($dupdirs{$key});
714: delete($dirs{$key});
715: }
716: }
717: }
718: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
719: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
720: }
721: $indent--;
722: }
723:
724: # --------------- get complete matched list based on the uri (returns an array)
725: sub get_list {
726: my ($r,$uri)=@_;
727: my @list=();
728: (my $luri = $uri) =~ s/\//_/g;
729: if ($env{'form.updatedisplay'}) {
730: foreach (keys %hash) {
731: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
732: delete $hash{$_} if ($_ =~ /^dirlist_timestamp_files_/);
733: }
734: }
735:
736: if (defined($hash{'dirlist_files_'.$luri}) &&
737: $hash{'dirlist_timestamp_files_'.$luri}+600 > (time)) {
738: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
739: } elsif ($uri=~/\.(page|sequence)\/$/) {
740: # is a page or a sequence
741: $uri=~s/\/$//;
742: $uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
743: $uri=~s/\/+/\//g;
744: foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
745: my @ratpart=split(/\:/,$_);
746: push(@list,&LONCAPA::map::qtescape($ratpart[1]));
747: }
748: $hash{'dirlist_files_'.$luri} = join("\n",@list);
749: } else {
750: # is really a directory
751: @list = &Apache::lonnet::dirlist($uri);
752: $hash{'dirlist_files_'.$luri} = join("\n",@list);
753: $hash{'dirlist_timestamp_files_'.$luri} = time;
754: }
755: return @list=&match_ext($r,@list);
756: }
757:
758: sub dynmetaread {
759: my $uri=shift;
760: if (($hash{'display_attrs_8'}==1) || ($hash{'display_attrs_11'}==1)) {
761: # We don't want the filename
762: $uri=~s/\/[^\/]+$//;
763: # Did we already see this?
764: my $builddir=$uri;
765: while ($builddir) {
766: if ($dynread{$builddir}) {
767: return 0;
768: }
769: $builddir=~s/\/[^\/]+$//;
770: }
771: # Actually get the data
772: %dynhash=
773: (%dynhash,&Apache::lonmeta::get_dynamic_metadata_from_sql($uri.'/'));
774: # Remember that we got it
775: $dynread{$uri}=1;
776: }
777: }
778:
779: sub initdebug {
780: my $start_page=
781: &Apache::loncommon::start_page('Debug',undef,
782: {'only_body' => 1,});
783: $start_page =~ s/\n/ /g;
784: return <<ENDJS;
785: <script type="text/javascript">
786: var debugging = true;
787: if (debugging) {
788: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
789: }
790:
791: function output(text) {
792: if (debugging) {
793: debuggingWindow.document.writeln(text);
794: }
795: }
796: output('$start_page<pre>');
797: </script>
798: ENDJS
799: }
800:
801: sub writedebug {
802: my ($text) = @_;
803: return "<script type=\"text/javascript\">output('$text');</script>";
804: }
805:
806: # -------------------- filters out files based on extensions (returns an array)
807: sub match_ext {
808: my ($r,@packlist)=@_;
809: my @trimlist;
810: my $nextline;
811: my @fileext;
812: my $dirptr=16384;
813:
814: foreach my $line (@packlist) {
815: chomp $line;
816: $line =~ s/^\/home\/httpd\/html//;
817: my @unpackline = split (/\&/,$line);
818: next if ($unpackline[0] eq '.');
819: next if ($unpackline[0] eq '..');
820: my @filecom = split (/\./,$unpackline[0]);
821: my $fext = pop(@filecom);
822: my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
823: if ($fnptr == 0 and $unpackline[3] ne "") {
824: my $embstyle = &Apache::loncommon::fileembstyle($fext);
825: push @trimlist,$line if (defined($embstyle) &&
826: ($embstyle ne 'hdn' or $fext eq 'meta'));
827: } else {
828: push @trimlist,$line;
829: }
830: }
831: @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
832: return @trimlist;
833: }
834:
835: # ------------------------------- displays one line in appropriate table format
836: sub display_line {
837: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
838: my (@pathfn, $fndir);
839: # there could be relative paths (files actually belonging into this directory)
840: # or absolute paths (for example, from sequences)
841: my $absolute;
842: my $pathprefix;
843: if ($line=~m|^/res/| && $startdir ne '') {
844: $absolute=1;
845: $pathprefix='';
846: } else {
847: $absolute=0;
848: $pathprefix=$startdir;
849: }
850: my $dirptr=16384;
851: my $fileclr="#ffffe6";
852: my $iconpath= $r->dir_config('lonIconsURL') . '/';
853:
854: my @filecom = split (/\&/,$line);
855: my @pathcom = split (/\//,$filecom[0]);
856: my $listname = $pathcom[scalar(@pathcom)-1];
857: my $fnptr = $filecom[3]&$dirptr;
858: my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
859: $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
860:
861: my $tabtag='</td>';
862: my $i=0;
863: while ($i<=16) {
864: $tabtag=join('',$tabtag,"<td> </td>")
865: if ($i != 9 &&
866: $hash{'display_attrs_'.$i} == 1);
867: $i++;
868: }
869: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
870:
871: # display uplink arrow
872: if ($filecom[1] eq 'viewOneUp') {
873: my $updir=$startdir;
874: # -------------- Filter out sequence containment in crumbs and "recent folders"
875: $updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
876: $updir=~s/\/+/\//g;
877:
878: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
879: $r->print("<td>\n");
880: $r->print ('<form method="post" name="dirpathUP" action="'.$updir.
881: '/" '.
882: 'onsubmit="return rep_dirpath(\'UP\','.
883: 'document.forms.fileattr.acts.value)" '.
884: 'enctype="application/x-www-form-urlencoded"'.
885: '>'."\n");
886: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
887: $r->print ('<input type="hidden" name="openuri" value="'.
888: $startdir.'" />'."\n");
889: $r->print ('<input type="hidden" name="acts" value="" />'."\n");
890: $r->print ('<input src="'.$iconpath.'arrow_up.gif"');
891: $r->print (' name="'.$msg.'" alt="'.$msg.'" type="image" class="LC_indexer_icon" />'.
892: "\n");
893: $r->print(&mt("Up")."</form>$tabtag</tr>\n");
894: return OK;
895: }
896: # Do we have permission to look at this?
897:
898: if($filecom[15] ne '1') { return OK if (!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])); }
899:
900: # make absolute links appear on different background
901: if ($absolute) { $fileclr='#ccdd99'; }
902:
903: # display domain
904: if ($filecom[1] eq 'domain') {
905: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n")
906: if ($env{'form.dirPointer'} eq "on");
907: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
908: $r->print("<td>");
909: &begin_form ($r,$filecom[0]);
910: my $anchor = $filecom[0];
911: $anchor =~ s/\W//g;
912: $r->print ('<a name="'.$anchor.'"></a>');
913: $r->print ('<input type="hidden" name="acts" value="" />');
914: $r->print ('<input src="'.$iconpath.'folder_pointer_'.
915: $diropen.'.gif"');
916: $r->print (' name="'.$msg.'" alt="'.$msg.'" type="image" class="LC_indexer_icon" />'.
917: "\n");
918: my $quotable_filecom = &Apache::loncommon::escape_single($filecom[0]);
919: $r->print ('<a href="javascript:gothere(\''.$quotable_filecom.
920: '\')"><img alt="" src="'.$iconpath.'server.gif"');
921: $r->print (' class="LC_icon" /></a>'."\n");
922: $r->print (&mt("Domain")." - $listname ");
923: if (&Apache::lonnet::domain($listname,'description')) {
924: $r->print("(".&Apache::lonnet::domain($listname,'description').
925: ")");
926: }
927: $r->print ("</form>$tabtag</tr>\n");
928: return OK;
929:
930: # display user directory
931: }
932: if ($filecom[1] eq 'user') {
933: # $r->print("<tr valign=$valign bgcolor=\"$fileclr\">$extrafield");
934: my $curdir = $startdir.$filecom[0].'/';
935: my $anchor = $curdir;
936: $anchor =~ s/\W//g;
937: $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
938: &begin_form ($r,$curdir);
939: $r->print ('<a name="'.$anchor.'"></a><img alt="" src="'.$iconpath.
940: 'whitespace1.gif" class="LC_icon" />'."\n");
941: $r->print ('<input type="hidden" name="acts" value="" />');
942: $r->print ('<input src="'.$iconpath.'folder_pointer_'.$diropen.
943: '.gif"');
944: $r->print (' name="'.$msg.'" alt="'.$msg.'" type="image" class="LC_indexer_icon" />'.
945: "\n");
946: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
947: $r->print ('<a href="javascript:gothere(\''.$quotable_curdir
948: .'\')"><img alt="'.$msg.'" src="'.
949: $iconpath.'quill.gif" class="LC_indexer_icon" /></a>');
950: my $domain=(split(m|/|,$startdir))[2];
951: my $plainname=&Apache::loncommon::plainname($listname,$domain);
952: $r->print ($listname);
953: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
954: $r->print ('</form>'.$tabtag.'</tr>'."\n");
955: return OK;
956: }
957:
958: # display file
959: if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
960: my $title;
961: my $filelink = $pathprefix.$filecom[0];
962: if ($hash{'display_attrs_0'} == 1) {
963: $title = &Apache::lonnet::gettitle($filelink);
964: }
965: my @file_ext = split (/\./,$listname);
966: my $curfext = $file_ext[-1];
967: if (@Omit) {
968: foreach (@Omit) { return OK if (lc($curfext) eq $_); }
969: }
970: if (@Only) {
971: my $skip = 1;
972: foreach (@Only) { $skip = 0 if (lc($curfext) eq $_); }
973: return OK if ($skip > 0);
974: }
975: # Set the icon for the file
976: my $iconname = &Apache::loncommon::icon($listname);
977: $r->print('<tr valign="'.$valign.'" bgcolor="'.$fileclr.'">'.
978: '<td valign="top"><span class="LC_nobreak">');
979:
980: if ($env{'form.catalogmode'} eq 'interactive') {
981: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
982: $r->print("<a href=\"javascript:select_data(\'",
983: $quotable_filelink,"')\">");
984: $r->print("<img alt=\"\" src='",$iconpath,"select.gif' class='LC_icon' /></a>".
985: "\n");
986: $r->print('</span></td><td valign="top"><span class="LC_nobreak">');
987: } elsif ($env{'form.catalogmode'} eq 'import') {
988: $r->print("<form name='form$fnum' action=''>\n");
989: $r->print("<input type='checkbox' name='filelink"."' ".
990: "value='$filelink' onclick='".
991: "javascript:queue(\"form$fnum\")' ");
992: if ($hash{'store_'.$filelink}) {
993: $r->print("checked");
994: }
995: $r->print(" />\n");
996: $r->print('</form></span></td><td valign="top"><span class="LC_nobreak">');
997: $hash{"pre_${fnum}_link"}=$filelink;
998: $hash{"pre_${fnum}_title"}=$title;
999: if (!$hash{"pre_${fnum}_title"}) {
1000: $hash{"pre_${fnum}_title"} = 'Not_retrieved';
1001: }
1002: $fnum++;
1003: }
1004: # Form to open or close sequences
1005: if ($filelink=~/\.(page|sequence)$/) {
1006: my $curdir = $startdir.$filecom[0].'/';
1007: &begin_form($r,$curdir);
1008: $indent--;
1009: }
1010: # General indentation
1011: if ($indent > 0 and $indent < 16) {
1012: $r->print("<img alt=\"\" src='",$iconpath,"whitespace",$indent,
1013: ".gif' class='LC_icon' />\n");
1014: } elsif ($indent >0) {
1015: my $ten = int($indent/10.);
1016: my $rem = $indent%10.0;
1017: my $count = 0;
1018: while ($count < $ten) {
1019: $r->print("<img alt=\"\" src=".$iconpath.
1020: "whitespace10.gif class='LC_icon' />\n");
1021: $count++;
1022: }
1023: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
1024: ".gif class='LC_icon' />\n") if $rem > 0;
1025: }
1026: # Sequence open/close icon
1027: if ($filelink=~/\.(page|sequence)$/) {
1028: my $curdir = $startdir.$filecom[0].'/';
1029: my $anchor = $curdir;
1030: $anchor =~ s/\W//g;
1031: $r->print ('<input type="hidden" name="acts" value="" />');
1032: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
1033: 'folder_pointer_'.$diropen.'.gif"');
1034: $r->print (' name="'.$msg.'" alt="'.$msg.'" type="image" class="LC_indexer_icon" />'.
1035: "\n");
1036: }
1037: # Filetype icons
1038: $r->print("<img alt=\"\" src='$iconname' class='LC_icon' />\n");
1039: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
1040:
1041: $r->print (" <a href=\"javascript:openWindow('".$quotable_filelink.
1042: "?inhibitmenu=yes','previewfile','450','500','no','yes','yes');\"".
1043: " target=\"_self\">$listname</a> ");
1044: $quotable_filelink = &Apache::loncommon::escape_single($filelink.'.meta');
1045: &Apache::loncommon::inhibit_menu_check(\$quotable_filelink);
1046: $r->print (" (<a href=\"javascript:openWindow('".$quotable_filelink.
1047: "?inhibitmenu=yes','metadatafile','500','550','no','yes','no');\" ".
1048: " target=\"_self\">".&mt('metadata')."</a>) ");
1049: # Close form to open/close sequence
1050: if ($filelink=~/\.(page|sequence)$/) {
1051: $r->print('</form>');
1052: }
1053: $r->print("</span></td>\n");
1054: if ($hash{'display_attrs_0'} == 1) {
1055: $r->print('<td> '.($title eq '' ? ' ' : $title).
1056: ' </td>'."\n");
1057: }
1058: $r->print('<td align="right"> ',
1059: $filecom[8]," </td>\n")
1060: if $hash{'display_attrs_1'} == 1;
1061: $r->print('<td> '.
1062: (&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
1063: if $hash{'display_attrs_2'} == 1;
1064: $r->print('<td> '.
1065: (&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
1066: if $hash{'display_attrs_3'} == 1;
1067:
1068: if ($hash{'display_attrs_4'} == 1) {
1069: my $author = &Apache::lonnet::metadata($filelink,'author');
1070: $r->print('<td> '.($author eq '' ? ' ' : $author).
1071: " </td>\n");
1072: }
1073: if ($hash{'display_attrs_5'} == 1) {
1074: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1075: # $keywords = ' ' if (!$keywords);
1076: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1077: " </td>\n");
1078: }
1079: #'
1080:
1081: if ($hash{'display_attrs_6'} == 1) {
1082: my $lang = &Apache::lonnet::metadata($filelink,'language');
1083: $lang = &Apache::loncommon::languagedescription($lang);
1084: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1085: " </td>\n");
1086: }
1087: if ($hash{'display_attrs_8'} == 1) {
1088: # statistics
1089: &dynmetaread($filelink);
1090: $r->print("<td>");
1091: for (qw(count course stdno avetries difficulty disc clear technical
1092: correct helpful depth)) {
1093:
1094: &dynmetaprint($r,$filelink,$_);
1095: }
1096: $r->print(" </td>\n");
1097:
1098: }
1099: if ($hash{'display_attrs_10'} == 1) {
1100: my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
1101: if($source eq 'open') {
1102: my $sourcelink = &Apache::lonsource::make_link($filelink,$listname);
1103: my $quotable_sourcelink = &Apache::loncommon::escape_single($sourcelink);
1104: &Apache::loncommon::inhibit_menu_check(\$quotable_sourcelink);
1105: $r->print('<td>'."<a href=\"javascript:openWindow('"
1106: .$quotable_sourcelink.
1107: "', 'previewsource', '700', '700', 'no', 'yes','yes');\"".
1108: " target=\"_self\">".&mt('Source Code')."</a> "."</td>\n");
1109: } else { #A cuddled else. :P
1110: $r->print("<td> </td>\n");
1111: }
1112: }
1113: if ($hash{'display_attrs_11'} == 1) {
1114: # links
1115: &dynmetaread($filelink);
1116: $r->print('<td>');
1117: &coursecontext($r,$filelink);
1118: for (qw(goto_list comefrom_list sequsage_list dependencies course_list)) {
1119: &dynmetaprint($r,$filelink,$_);
1120: }
1121: $r->print('</td>');
1122: }
1123: if ($hash{'display_attrs_7'} == 1) {
1124: # Show resource
1125: my $output=&showpreview($filelink);
1126: $r->print('<td> '.($output eq '' ? ' ':$output).
1127: " </td>\n");
1128: }
1129: if ($hash{'display_attrs_12'} == 1) {
1130: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1131: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1132: " </td>\n");
1133: }
1134:
1135: if ($hash{'display_attrs_13'} == 1) {
1136: my $notes = &Apache::lonnet::metadata($filelink,'notes');
1137: $r->print('<td> '.($notes eq '' ? ' ' : $notes).
1138: " </td>\n");
1139: }
1140:
1141: if ($hash{'display_attrs_14'} == 1) {
1142: my $abstract = &Apache::lonnet::metadata($filelink,'abstract');
1143: $r->print('<td> '.($abstract eq '' ? ' ' : $abstract).
1144: " </td>\n");
1145: }
1146:
1147: if ($hash{'display_attrs_15'} == 1) {
1148: my $gradelevel = &Apache::lonnet::metadata($filelink,'gradelevel');
1149: $r->print('<td> '.($gradelevel eq '' ? ' ' : $gradelevel).
1150: " </td>\n");
1151: }
1152:
1153: if ($hash{'display_attrs_16'} == 1) {
1154: my $standards = &Apache::lonnet::metadata($filelink,'standards');
1155: $r->print('<td> '.($standards eq '' ? ' ' : $standards).
1156: " </td>\n");
1157: }
1158:
1159: $r->print("</tr>\n");
1160: }
1161:
1162: # -- display directory
1163: if ($fnptr == $dirptr) {
1164: my $curdir = $startdir.$filecom[0].'/';
1165: my $anchor = $curdir;
1166: $anchor =~ s/\W//g;
1167: $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
1168: &begin_form ($r,$curdir);
1169: my $indentm1 = $indent-1;
1170: if ($indentm1 < 16 and $indentm1 > 0) {
1171: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$indentm1,
1172: ".gif class='LC_icon' />\n");
1173: } else {
1174: my $ten = int($indentm1/10.);
1175: my $rem = $indentm1%10.0;
1176: my $count = 0;
1177: while ($count < $ten) {
1178: $r->print ("<img alt=\"\" src=",$iconpath
1179: ,"whitespace10.gif class='LC_icon' />\n");
1180: $count++;
1181: }
1182: $r->print ("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
1183: ".gif class='LC_icon' />\n") if $rem > 0;
1184: }
1185: $r->print ('<input type="hidden" name="acts" value="" />');
1186: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
1187: 'folder_pointer_'.$diropen.'.gif"');
1188: $r->print (' name="'.$msg.'" alt="'.$msg.'" type="image" class="LC_indexer_icon" />'.
1189: "\n");
1190: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
1191: $r->print ('<a href="javascript:gothere(\''
1192: .$quotable_curdir.'\')">'
1193: .'<img alt="'.&mt('Open Folder').'"src="'.
1194: $iconpath.'folder_'.$diropen.'.gif" class="LC_icon" /></a>'.
1195: "\n");
1196: $r->print ("$listname</form></td>\n");
1197: # Attributes
1198: my $filelink = $startdir.$filecom[0].'/default';
1199:
1200: if ($hash{'display_attrs_0'} == 1) {
1201: my $title = &Apache::lonnet::gettitle($filelink);
1202: $r->print('<td> '.($title eq '' ? ' ' : $title).
1203: ' </td>'."\n");
1204: }
1205: $r->print('<td align=right> ',
1206: $filecom[8]," </td>\n")
1207: if $hash{'display_attrs_1'} == 1;
1208: $r->print('<td> '.
1209: (&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
1210: if $hash{'display_attrs_2'} == 1;
1211: $r->print('<td> '.
1212: (&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
1213: if $hash{'display_attrs_3'} == 1;
1214:
1215: if ($hash{'display_attrs_4'} == 1) {
1216: my $author = &Apache::lonnet::metadata($filelink,'author');
1217: $r->print('<td> '.($author eq '' ? ' ' : $author).
1218: " </td>\n");
1219: }
1220: if ($hash{'display_attrs_5'} == 1) {
1221: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1222: # $keywords = ' ' if (!$keywords);
1223: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1224: " </td>\n");
1225: }
1226: if ($hash{'display_attrs_6'} == 1) {
1227: my $lang = &Apache::lonnet::metadata($filelink,'language');
1228: $lang = &Apache::loncommon::languagedescription($lang);
1229: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1230: " </td>\n");
1231: }
1232: if ($hash{'display_attrs_8'} == 1) {
1233: $r->print('<td> </td>');
1234: }
1235: if ($hash{'display_attrs_10'} == 1) {
1236: $r->print('<td> </td>');
1237: }
1238: if ($hash{'display_attrs_7'} == 1) {
1239: $r->print('<td> </td>');
1240: }
1241: if ($hash{'display_attrs_12'} == 1) {
1242: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1243: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1244: " </td>\n");
1245: }
1246: if ($hash{'display_attrs_11'} == 1) {
1247: $r->print('<td> </td>');
1248: }
1249: if ($hash{'display_attrs_12'} == 1) {
1250: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1251: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1252: " </td>\n");
1253: }
1254: if ($hash{'display_attrs_13'} == 1) {
1255: my $notes = &Apache::lonnet::metadata($filelink,'notes');
1256: $r->print('<td> '.($notes eq '' ? ' ' : $notes).
1257: " </td>\n");
1258: }
1259: if ($hash{'display_attrs_14'} == 1) {
1260: my $abstract = &Apache::lonnet::metadata($filelink,'abstract');
1261: $r->print('<td> '.($abstract eq '' ? ' ' : $abstract).
1262: " </td>\n");
1263: }
1264: if ($hash{'display_attrs_15'} == 1) {
1265: my $gradelevel = &Apache::lonnet::metadata($filelink,'gradelevel');
1266: $r->print('<td> '.($gradelevel eq '' ? ' ' : $gradelevel).
1267: " </td>\n");
1268: }
1269: if ($hash{'display_attrs_16'} == 1) {
1270: my $standards = &Apache::lonnet::metadata($filelink,'standards');
1271: $r->print('<td> '.($standards eq '' ? ' ' : $standards).
1272: " </td>\n");
1273: }
1274: $r->print('</tr>');
1275: }
1276:
1277: }
1278:
1279: sub coursecontext {
1280: my ($r,$filelink)=@_;
1281: my $filesymb=&Apache::lonnet::symbread($filelink);
1282: if ($filesymb) {
1283: my ($map,$index,$resource)=&Apache::lonnet::decode_symb($filesymb);
1284: $r->print(&mt('Already in this course:<br />[_1] in folder/map [_2].<br />',
1285: &Apache::lonnet::gettitle($resource),
1286: &Apache::lonnet::gettitle($map)));
1287: }
1288: }
1289:
1290: sub showpreview {
1291: my ($filelink)=@_;
1292: if ($filelink=~m-^(/ext/|http://)-) {
1293: return &mt('External Resource, preview not enabled');
1294: }
1295: my ($curfext)=($filelink=~/\.(\w+)$/);
1296: my $output='';
1297: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
1298: if ($embstyle eq 'ssi') {
1299: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
1300: '.tmp';
1301: if ((!$env{'form.updatedisplay'}) &&
1302: (-e $cache)) {
1303: open(FH,$cache);
1304: $output=join("\n",<FH>);
1305: close(FH);
1306: } else {
1307: # In update display mode, remove old cache. This is done to retroactively
1308: # clean up course context renderings.
1309: if (-e $cache) {
1310: unlink($cache);
1311: }
1312: $output=&Apache::lonnet::ssi_body($filelink);
1313: # Is access denied? Don't render, don't store
1314: if ($output=~/LONCAPAACCESSCONTROLERRORSCREEN/s) {
1315: $output='';
1316: # Was this rendered in course content? Don't store
1317: } elsif (!&Apache::lonnet::symbread($filelink)) {
1318: open(FH,">$cache");
1319: print FH $output;
1320: close(FH);
1321: }
1322: }
1323: $output='<font size="-2">'.$output.'</font>';
1324: } elsif ($embstyle eq 'img') {
1325: $output='<img alt="'.&mt('Preview').'" src="'.$filelink.'" />';
1326: } elsif ($filelink=~m{^/res/($match_domain)/($match_username)/}) {
1327: $output='<img alt="'.&mt('Preview').'" src="http://'.
1328: &Apache::lonnet::hostname(&Apache::lonnet::homeserver($2,$1)).
1329: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1330: }
1331: return $output;
1332: }
1333:
1334: sub dynmetaprint {
1335: my ($r,$filelink,$item)=@_;
1336: if ($dynhash{$filelink}->{$item}) {
1337: $r->print("\n<br />".$fieldnames{$item}.': '.
1338: &Apache::lonmeta::prettyprint($item,
1339: $dynhash{$filelink}->{$item},
1340: (($env{'form.catalogmode'} ne 'import')?'preview':''),
1341: '',
1342: (($env{'form.catalogmode'} eq 'import')?'document.forms.fileattr':''),1));
1343: }
1344: }
1345:
1346: # ------------------- prints the beginning of a form for directory or file link
1347: sub begin_form {
1348: my ($r,$uri) = @_;
1349: my $anchor = $uri;
1350: $anchor =~ s/\W//g;
1351: $uri=&Apache::loncommon::escape_single($uri);
1352: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1353: '#'.$anchor.
1354: '" onsubmit="return rep_dirpath(\''.$dnum.'\''.
1355: ',document.forms.fileattr.acts.value)" '.
1356: 'enctype="application/x-www-form-urlencoded">'."\n");
1357: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'" />'.
1358: "\n");
1359: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n");
1360: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
1361: $dnum++;
1362: }
1363:
1364: # --------- settings whenever the user causes the indexer window to be launched
1365: sub start_fresh_session {
1366: my ($hash) = @_;
1367: delete $hash->{'form.catalogmode'};
1368: delete $hash->{'form.mode'};
1369: delete $hash->{'form.form'};
1370: delete $hash->{'form.element'};
1371: delete $hash->{'form.omit'};
1372: delete $hash->{'form.only'};
1373: foreach (keys %{$hash}) {
1374: delete $hash->{$_} if (/^(pre_|store)/);
1375: }
1376: }
1377:
1378: # ------------------------------------------------------------------- setvalues
1379: sub setvalues {
1380: # setvalues is used in registerurl to synchronize the database
1381: # hash and environment hashes
1382: my ($H1,$h1key,$H2,$h2key) =@_;
1383: #
1384: if (exists $H2->{$h2key}) {
1385: $H1->{$h1key} = $H2->{$h2key};
1386: } elsif (exists $H1->{$h1key}) {
1387: $H2->{$h2key} = $H1->{$h1key};
1388: }
1389: }
1390:
1391: 1;
1392:
1393: sub cleanup {
1394: if (tied(%hash)){
1395: &Apache::lonnet::logthis('Cleanup indexer: hash');
1396: }
1397: return OK;
1398: }
1399:
1400:
1401:
1402:
1403:
1404: =head1 NAME
1405:
1406: Apache::lonindexer - mod_perl module for cross server filesystem browsing
1407:
1408: =head1 SYNOPSIS
1409:
1410: Invoked by /etc/httpd/conf/srm.conf:
1411:
1412: <LocationMatch "^/res.*/$">
1413: SetHandler perl-script
1414: PerlHandler Apache::lonindexer
1415: </LocationMatch>
1416:
1417: =head1 INTRODUCTION
1418:
1419: This module enables a scheme of browsing across a cross server.
1420:
1421: This is part of the LearningOnline Network with CAPA project
1422: described at http://www.lon-capa.org.
1423:
1424: =head1 BEGIN SUBROUTINE
1425:
1426: This routine is only run once after compilation.
1427:
1428: =over 4
1429:
1430: =item *
1431:
1432: Initializes %language hash table.
1433:
1434: =back
1435:
1436: =head1 HANDLER SUBROUTINE
1437:
1438: This routine is called by Apache and mod_perl.
1439:
1440: =over 4
1441:
1442: =item *
1443:
1444: read in machine configuration variables
1445:
1446: =item *
1447:
1448: see if called from an interactive mode
1449:
1450: =item *
1451:
1452: refresh environment with user database values (in %hash)
1453:
1454: =item *
1455:
1456: define extra fields and buttons in case of special mode
1457:
1458: =item *
1459:
1460: set catalogmodefunctions to have extra needed javascript functionality
1461:
1462: =item *
1463:
1464: print header
1465:
1466: =item *
1467:
1468: evaluate actions from previous page (both cumulatively and chronologically)
1469:
1470: =item *
1471:
1472: output title
1473:
1474: =item *
1475:
1476: get state of file attributes to be showing
1477:
1478: =item *
1479:
1480: output state of file attributes to be showing
1481:
1482: =item *
1483:
1484: output starting row to the indexed file/directory hierarchy
1485:
1486: =item *
1487:
1488: read in what directories have previously been set to "open"
1489:
1490: =item *
1491:
1492: if not at top level, provide an uplink arrow
1493:
1494: =item *
1495:
1496: recursively go through all the directories and output as appropriate
1497:
1498: =item *
1499:
1500: information useful for group import
1501:
1502: =item *
1503:
1504: end the tables
1505:
1506: =item *
1507:
1508: end the output and return
1509:
1510: =back
1511:
1512: =head1 OTHER SUBROUTINES
1513:
1514: =over 4
1515:
1516: =item *
1517:
1518: scanDir - recursive scan of a directory
1519:
1520: =item *
1521:
1522: get_list - get complete matched list based on the uri (returns an array)
1523:
1524: =item *
1525:
1526: match_ext - filters out files based on extensions (returns an array)
1527:
1528: =item *
1529:
1530: display_line - displays one line in appropriate table format
1531:
1532: =item *
1533:
1534: begin_form - prints the beginning of a form for directory or file link
1535:
1536: =item *
1537:
1538: start_fresh_session - settings whenever the user causes the indexer window
1539: to be launched
1540:
1541: =back
1542:
1543: =cut
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