1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.183 2008/09/19 09:08:53 bisitz Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: ###
29:
30: ###############################################################################
31: ## ##
32: ## ORGANIZATION OF THIS PERL MODULE ##
33: ## ##
34: ## 1. Description of functions ##
35: ## 2. Modules used by this module ##
36: ## 3. Choices for different output views (detailed, summary, xml, etc) ##
37: ## 4. BEGIN block (to be run once after compilation) ##
38: ## 5. Handling routine called via Apache and mod_perl ##
39: ## 6. Other subroutines ##
40: ## ##
41: ###############################################################################
42:
43: package Apache::lonindexer;
44:
45: # ------------------------------------------------- modules used by this module
46: use strict;
47: use Apache::lonnet;
48: use Apache::loncommon();
49: use Apache::lonhtmlcommon();
50: use Apache::lonsequence();
51: use Apache::Constants qw(:common);
52: use Apache::lonmeta;
53: use Apache::File;
54: use Apache::lonlocal;
55: use Apache::lonsource();
56: use Apache::groupsort();
57: use GDBM_File;
58: use LONCAPA qw(:match);
59:
60: # ---------------------------------------- variables used throughout the module
61: my %hash; # global user-specific gdbm file
62: my %dirs; # keys are directories, values are the open/close status
63: my %language; # has the reference information present in language.tab
64: my %dynhash; # hash of hashes for dynamic metadata
65: my %dynread; # hash of directories already read for dynamic metadata
66: my %fieldnames; # Metadata fieldnames
67: # ----- Values which are set by the handler subroutine and are accessible to
68: # ----- other methods.
69: my $extrafield; # default extra table cell
70: my $fnum; # file counter
71: my $dnum; # directory counter
72:
73: # ----- Used to include or exclude files with certain extensions.
74: my @Only = ();
75: my @Omit = ();
76:
77:
78:
79:
80: # ----------------------------- Handling routine called via Apache and mod_perl
81: sub handler {
82: my $r = shift;
83: my $c = $r->connection();
84: &Apache::loncommon::content_type($r,'text/html');
85: &Apache::loncommon::no_cache($r);
86: $r->send_http_header;
87: return OK if $r->header_only;
88: $fnum=0;
89: $dnum=0;
90:
91: # Deal with stupid global variables (is there a way around making
92: # these global to this package? It is just so wrong....)
93: undef (@Only);
94: undef (@Omit);
95: %fieldnames=&Apache::lonmeta::fieldnames();
96:
97: # ------------------------------------- read in machine configuration variables
98: my $iconpath= $r->dir_config('lonIconsURL') . "/";
99: my $domain = $r->dir_config('lonDefDomain');
100: my $role = $r->dir_config('lonRole');
101: my $loadlim = $r->dir_config('lonLoadLim');
102: my $servadm = $r->dir_config('lonAdmEMail');
103: my $sysadm = $r->dir_config('lonSysEMail');
104: my $lonhost = $r->dir_config('lonHostID');
105: my $tabdir = $r->dir_config('lonTabDir');
106:
107: #SB my $fileclr='#ffffe6';
108: my $line;
109: my (@attrchk,@openpath,$typeselect);
110: my $uri=$r->uri;
111:
112: # -------------------------------------- see if called from an interactive mode
113: # Get the parameters from the query string
114: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
115: ['catalogmode','launch','acts','mode','form','element',
116: 'only','omit','titleelement']);
117: #-------------------------------------------------------------------
118: my $closebutton='';
119: my $groupimportbutton='';
120: my $colspan='';
121:
122: $extrafield='';
123: my $diropendb =
124: "/home/httpd/perl/tmp/$env{'user.domain'}_$env{'user.name'}_sel_res.db";
125: %hash = ();
126: {
127: my %dbfile;
128: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_WRITER(),0640)) {
129: if ($env{'form.launch'} eq '1') {
130: &start_fresh_session(\%dbfile);
131: }
132: while(my($key,$value)=each(%dbfile)) {
133: $hash{$key}=$value;
134: }
135: untie(%dbfile);
136: }
137: }
138: # - Evaluate actions from previous page (both cumulatively and chronologically)
139: if ($env{'form.catalogmode'} eq 'import' || $hash{'form.catalogmode'} eq 'import') {
140: &Apache::groupsort::update_actions_hash(\%hash);
141: }
142:
143: {
144: #Hijack lonindexer to verify a title and be close down.
145: if ($env{'form.launch'} eq '2') {
146: &Apache::loncommon::content_type($r,'text/html');
147: my $extra='';
148: if (defined($env{'form.titleelement'}) &&
149: $env{'form.titleelement'} ne '') {
150: my $verify_title = &Apache::lonnet::gettitle($env{'form.acts'});
151: # &Apache::lonnet::logthis("Hrrm $env{'form.acts'} -- $verify_title");
152: $verify_title=~s/'/\\'/g;
153: $extra='window.opener.document.forms["'.$env{'form.form'}.'"].elements["'.$env{'form.titleelement'}.'"].value=\''.$verify_title.'\';';
154: }
155: my $js = <<ENDSUBM;
156: <script type="text/javascript">
157: function load() {
158: window.opener.document.forms["$env{'form.form'}"]
159: .elements["$env{'form.element'}"]
160: .value='$env{'form.acts'}';
161: $extra
162: window.close();
163: }
164: </script>
165: ENDSUBM
166: $r->print(&Apache::loncommon::start_page(undef,$js,
167: {'only_body' =>1,
168: 'add_entries' =>
169: {'onload' => "load();"},}
170: ).
171: &Apache::loncommon::end_page());
172: return OK;
173: }
174:
175: # -------------------- refresh environment with user database values (in %hash)
176: &setvalues(\%hash,'form.catalogmode',\%env,'form.catalogmode' );
177:
178: # --------------------- define extra fields and buttons in case of special mode
179: if ($env{'form.catalogmode'} eq 'interactive') {
180: #SB $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
181: $extrafield='<td valign="bottom">'.
182: '<img alt="" src="'.$iconpath.'whitespace1.gif"'.
183: ' class="LC_icon" /></td>';
184: $colspan=" colspan='2' ";
185: my $cl=&mt('Close');
186: $closebutton=<<END;
187: <input type="button" name="close" value='$cl' onClick="self.close()" />
188: END
189: }
190: elsif ($env{'form.catalogmode'} eq 'import') {
191: #SB $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
192: $extrafield='<td valign="bottom">'.
193: '<img alt="" src="'.$iconpath.'whitespace1.gif"'.
194: ' class="LC_icon" /></td>';
195: $colspan=" colspan='2' ";
196: my $cl=&mt('Close');
197: my $gi=&mt('Import');
198: $closebutton=<<END;
199: <input type="button" name="close" value='$cl' onClick="self.close()" />
200: END
201: $groupimportbutton=<<END;
202: <input type="button" name="groupimport" value='$gi'
203: onClick="javascript:select_group()" />
204: END
205: }
206: # Additions made by Matthew to make the browser a little easier to deal
207: # with in the future.
208: #
209: # $mode (at this time) indicates if we are in edit mode.
210: # $form is the name of the form that the URL is placed when the
211: # selection is made.
212: # $element is the name of the element in $formname which receives
213: # the URL.
214: #&Apache::lonxml::debug('Checking mode, form, element');
215: &setvalues(\%hash,'form.mode' ,\%env,'form.mode' );
216: &setvalues(\%hash,'form.form' ,\%env,'form.form' );
217: &setvalues(\%hash,'form.element' ,\%env,'form.element');
218: &setvalues(\%hash,'form.titleelement',\%env,'form.titleelement');
219: &setvalues(\%hash,'form.only' ,\%env,'form.only' );
220: &setvalues(\%hash,'form.omit' ,\%env,'form.omit' );
221:
222: # Deal with 'omit' and 'only'
223: if (exists $env{'form.omit'}) {
224: @Omit = split(',',$env{'form.omit'});
225: }
226: if (exists $env{'form.only'}) {
227: @Only = split(',',$env{'form.only'});
228: }
229:
230: my $mode = $env{'form.mode'};
231: my ($form,$element,$titleelement);
232: if ($mode eq 'edit' || $mode eq 'parmset') {
233: $form = $env{'form.form'};
234: $element = $env{'form.element'};
235: $titleelement = $env{'form.titleelement'};
236: }
237: #&Apache::lonxml::debug("mode=$mode form=$form element=$element titleelement=$titleelement");
238: # ------ set catalogmodefunctions to have extra needed javascript functionality
239: my $catalogmodefunctions='';
240: if ($env{'form.catalogmode'} eq 'interactive' or
241: $env{'form.catalogmode'} eq 'import') {
242: # The if statement below sets us up to use the old version
243: # by default (ie. if $mode is undefined). This is the easy
244: # way out. Hopefully in the future I'll find a way to get
245: # the calls dealt with in a more comprehensive manner.
246:
247: #
248: # There is now also mode "simple", which is for the simple version of the rat
249: #
250: #
251: if (!defined($mode) || ($mode ne 'edit' && $mode ne 'parmset')) {
252: my $location = "/adm/groupsort?&inhibitmenu=yes&catalogmode=import&";
253: $location .= "mode=".$mode."&";
254: $location .= "acts=";
255: $catalogmodefunctions=<<"END";
256: function select_data(url) {
257: changeURL(url);
258: self.close();
259: }
260: function select_group() {
261: window.location="$location"+document.forms.fileattr.acts.value;
262: }
263: function changeURL(val) {
264: if (opener.inf) {
265: if (opener.inf.document.forms.resinfo.elements.u) {
266: opener.inf.document.forms.resinfo.elements.u.value=val;
267: }
268: }
269: }
270: END
271: } elsif ($mode eq 'edit') { # we are in 'edit' mode
272: my $location = "/adm/groupsort?catalogmode=interactive&";
273: $location .= "form=$form&element=$element&mode=edit&acts=";
274: $catalogmodefunctions=<<END;
275: // mode = $mode
276: function select_data(url) {
277: var location = "/res/?launch=2&form=$form&element=$element&titleelement=$titleelement&acts=" + url;
278: window.location=location;
279: if (window.opener.document.forms["$form"].elements["$element"].value != url) {
280: window.opener.unClean();
281: }
282: }
283: function select_group() {
284: window.location="$location"+document.forms.fileattr.acts.value;
285: }
286:
287: function changeURL(val) {
288: if (window.opener.document) {
289: window.opener.document.forms["$form"].elements["$element"].value=val;
290: } else {
291: alert("The file you selected is: "+val);
292: }
293: }
294: END
295: if (!$titleelement) {
296: $catalogmodefunctions.='function changeTitle(val) {}';
297: } else {
298: $catalogmodefunctions.=<<END;
299: function changeTitle(val) {
300: if (window.opener.document) {
301: window.opener.document.forms["$form"].elements["$titleelement"].value=val;
302: } else {
303: alert("The title of the file you selected is: "+val);
304: }
305: }
306: END
307: }
308: } elsif ($mode eq 'parmset') {
309: my $location = "/adm/groupsort?catalogmode=interactive&";
310: $location .= "form=$form&element=$element&mode=parmset&acts=";
311: $catalogmodefunctions=<<END;
312: // mode = $mode
313: function select_data(url) {
314: changeURL(url);
315: self.close();
316: }
317:
318: function select_group() {
319: window.location="$location"+document.forms.fileattr.acts.value;
320: }
321:
322: function changeURL(val) {
323: if (window.opener.document) {
324: var elementname = "$element"+"_value";
325: var checkboxname = "$element"+"_setparmval";
326: window.opener.document.forms["$form"].elements[elementname].value=val;
327: window.opener.document.forms["$form"].elements[checkboxname].checked=true;
328: } else {
329: alert("The file you selected is: "+val);
330: }
331: }
332:
333: END
334: }
335: }
336: $catalogmodefunctions.=<<END;
337: var acts='';
338: function rep_dirpath(suffix,val) {
339: eval("document.forms.dirpath"+suffix+".acts.value=val");
340: }
341: END
342: if ($env{'form.catalogmode'} eq 'import') {
343: $catalogmodefunctions.=<<END;
344: function queue(val) {
345: if (eval("document.forms."+val+".filelink.checked")) {
346: var l=val.length;
347: var v=val.substring(4,l);
348: document.forms.fileattr.acts.value+='1a'+v+'b';
349: }
350: else {
351: var l=val.length;
352: var v=val.substring(4,l);
353: document.forms.fileattr.acts.value+='0a'+v+'b';
354: }
355: }
356: END
357: }
358:
359: my $inhibit_menu = "+'&".&Apache::loncommon::inhibit_menu_check()."'";
360: # ---------------------------------------------------------------- Print Header
361:
362: my $js = <<"ENDHEADER";
363: <script type="text/javascript">
364: $catalogmodefunctions;
365: function update_only(field) {
366: alert(field.name);
367: }
368: function checkAll() {
369: var numForms = document.forms.length;
370: for (i=0;i<numForms;i++) {
371: var numElements = document.forms[i].elements.length;
372: for (j=0;j<numElements;j++){
373: var fieldName = document.forms[i].elements[j].name;
374: if (fieldName == 'filelink') {
375: document.forms[i].elements[j].checked = true;
376: queue(document.forms[i].name);
377: }
378: }
379: }
380: }
381: function uncheckAll() {
382: var numForms = document.forms.length;
383: for (i=0;i<numForms;i++) {
384: var numElements = document.forms[i].elements.length;
385: for (j=0;j<numElements;j++){
386: var fieldName = document.forms[i].elements[j].name;
387: if (fieldName == 'filelink') {
388: document.forms[i].elements[j].checked = false;
389: queue(document.forms[i].name);
390: }
391: }
392: }
393: }
394: function openWindow(url, wdwName, w, h, toolbar,scrollbar,locationbar) {
395: var xpos = (screen.width-w)/2;
396: xpos = (xpos < 0) ? '0' : xpos;
397: var ypos = (screen.height-h)/2-30;
398: ypos = (ypos < 0) ? '0' : ypos;
399: var options = "width=" + w + ",height=" + h + ",screenx="+xpos+",screeny="+ypos+",";
400: options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
401: options += "menubar=no,toolbar="+toolbar+",location="+locationbar+",directories=no";
402: var newWin = window.open(url, wdwName, options);
403: newWin.focus();
404: }
405: function gothere(val) {
406: window.location=val+'?acts='+document.forms.fileattr.acts.value$inhibit_menu;
407: }
408: </script>
409: ENDHEADER
410:
411: my ($headerdom)=($uri=~m{^/res/($match_domain)/});
412: $r->print(&Apache::loncommon::start_page('Browse Resources',$js,
413: {'domain' => $headerdom,}));
414: # ---------------------------------- get state of file types to be showing
415: if ($env{'form.only'}) {
416: $typeselect = $env{'form.only'};
417: } else {
418: $typeselect = '';
419: }
420:
421: # ---------------------------------- get state of file attributes to be showing
422: if ($env{'form.attrs'}) {
423: for (my $i=0; $i<=11; $i++) {
424: delete $hash{'display_attrs_'.$i};
425: if ($env{'form.attr'.$i} == 1) {
426: $attrchk[$i] = 'checked';
427: $hash{'display_attrs_'.$i} = 1;
428: }
429: }
430: } else {
431: for (my $i=0; $i<=11; $i++) {
432: $attrchk[$i] = 'checked' if $hash{'display_attrs_'.$i} == 1;
433: }
434: }
435:
436: # ------------------------------- output state of file attributes to be showing
437: # All versions has to the last item
438: # since it does not take an extra col
439: my %lt=&Apache::lonlocal::texthash(
440: 'ti' => 'Title',
441: 'si' => 'Size',
442: 'la' => 'Last access',
443: 'lm' => 'Last modified',
444: 'st' => 'Statistics',
445: 'au' => 'Author',
446: 'kw' => 'Keywords',
447: 'ln' => 'Language',
448: 'sa' => 'Source Available',
449: 'sr' => 'Show resource',
450: 'li' => 'Linked/Related Resources',
451: 'av' => 'All versions',
452: 'ud' => 'Update Display',
453: 'pr' => 'Problems',
454: 'gr' => 'Graphics',
455: 'at' => 'All types',
456: 'hd' => 'Display Options'
457: );
458: $r->print(<<END);
459: <fieldset>
460: <legend>$lt{'hd'}</legend>
461: <form method="post" name="fileattr" action="$uri"
462: enctype="application/x-www-form-urlencoded">
463: <label><input type="checkbox" name="attr9" value="1" $attrchk[9] onClick="this.form.submit();" /> $lt{'av'}</label>
464: <table border="0">
465: <tr>
466: <td><label><input type="checkbox" name="attr0" value="1" $attrchk[0] onClick="this.form.submit();" /> $lt{'ti'}</label></td>
467: <td><label><input type="checkbox" name="attr4" value="1" $attrchk[4] onClick="this.form.submit();" /> $lt{'au'}</label></td>
468: <td><label><input type="checkbox" name="attr5" value="1" $attrchk[5] onClick="this.form.submit();" /> $lt{'kw'}</label></td>
469: <td><label><input type="checkbox" name="attr6" value="1" $attrchk[6] onClick="this.form.submit();" /> $lt{'ln'}</label></td>
470: </tr>
471: <tr>
472: <td><label><input type="checkbox" name="attr1" value="1" $attrchk[1] onClick="this.form.submit();" /> $lt{'si'}</label></td>
473: <td><label><input type="checkbox" name="attr2" value="1" $attrchk[2] onClick="this.form.submit();" /> $lt{'la'}</label></td>
474: <td><label><input type="checkbox" name="attr3" value="1" $attrchk[3] onClick="this.form.submit();" /> $lt{'lm'}</label></td>
475: <td><label><input type="checkbox" name="attr10" value="1" $attrchk[10] onClick="this.form.submit();" /> $lt{'sa'}</label></td>
476: </tr>
477: <tr>
478: <td><label><input type="checkbox" name="attr8" value="1" $attrchk[8] onClick="this.form.submit();" /> $lt{'st'}</label></td>
479: <td><label><input type="checkbox" name="attr11" value="1" $attrchk[11] onClick="this.form.submit();" /> $lt{'li'}</label></td>
480: <td><label><input type="checkbox" name="attr7" value="1" $attrchk[7] onClick="this.form.submit();" /> $lt{'sr'}</label></td>
481: <td> </td>
482: </tr>
483: </table>
484: <input type="hidden" name="attrs" value="1" />
485: END
486: my @file_categories = &Apache::loncommon::filecategories();
487: my %select_file_categories;
488: my @select_form_order = ('');
489: $select_file_categories{''} = &mt('All file types');
490: foreach my $cat (@file_categories) {
491: my $types = join(",",&Apache::loncommon::filecategorytypes($cat));
492: $select_file_categories{$types} = $cat;
493: push(@select_form_order,$types);
494: }
495: $select_file_categories{'select_form_order'} = \@select_form_order;
496: my $type_element=
497: &Apache::loncommon::select_form($typeselect,'only',
498: %select_file_categories);
499: $type_element = '<label>'.&mt('File Type Displayed: [_1]',
500: $type_element).'</label>';
501: $r->print($type_element
502: .'</fieldset>');
503: $r->print(<<END);
504: <br />
505: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
506: <input type="hidden" name="acts" value="" />
507: $closebutton $groupimportbutton
508: END
509: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
510:
511: # -------------- Filter out sequence containment in crumbs and "recent folders"
512: my $storeuri=$uri;
513: $storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
514: $storeuri=~s/\/+/\//g;
515: # ---------------------------------------------------------------- Bread crumbs
516: $r->print(&Apache::lonhtmlcommon::crumbs($storeuri,'','',
517: (($env{'form.catalogmode'} eq 'import')?
518: 'document.forms.fileattr':'')).
519: &Apache::lonhtmlcommon::select_recent('residx','resrecent',
520: '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();'));
521: # -------------------------------------------------------- Resource Home Button
522: my $reshome=$env{'course.'.$env{'request.course.id'}.'.reshome'};
523: if ($reshome) {
524: $r->print("<font size='+2'><a href='");
525: if ($env{'form.catalogmode'} eq 'import') {
526: $r->print('javascript:document.forms.fileattr.action="'.&Apache::loncommon::inhibit_menu_check($reshome).'";document.forms.fileattr.submit();');
527: } else {
528: $r->print($reshome);
529: }
530: $r->print("'>".&mt('Home').'</a></font>');
531: }
532: $r->print('</form>');
533: # ------------------------------------------------------ Remember where we were
534: &Apache::loncommon::storeresurl($storeuri);
535: &Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
536: # -------------------------------------------------- Check All and Uncheck all
537: if ($env{'form.catalogmode'} eq 'import') {
538: $r->print('<br /><input type="button" value="'.&mt("Check All").'" id="checkallbutton" onClick="javascript:checkAll()" />');
539: $r->print('<input type="button" value="'.&mt("Uncheck All").'" id="uncheckallbutton" onClick="javascript:uncheckAll()" />');
540: }
541: # ----------------- output starting row to the indexed file/directory hierarchy
542: #$r->print(&initdebug());
543: #$r->print(&writedebug("Omit:@Omit")) if (@Omit);
544: #$r->print(&writedebug("Only:@Only")) if (@Only);
545: $r->print('<br /><br />');
546: $r->print(&Apache::loncommon::start_data_table()
547: .&Apache::loncommon::start_data_table_header_row());
548: $r->print("<th $colspan>".&mt('Name')."</th>\n");
549: $r->print("<th>".&mt('Title')."</th>\n")
550: if ($hash{'display_attrs_0'} == 1);
551: $r->print('<th align="right">'.&mt("Size")." (".&mt("bytes").") ".
552: "</th>\n") if ($hash{'display_attrs_1'} == 1);
553: $r->print("<th>".&mt("Last accessed")."</th>\n")
554: if ($hash{'display_attrs_2'} == 1);
555: $r->print("<th>".&mt("Last modified")."</th>\n")
556: if ($hash{'display_attrs_3'} == 1);
557: $r->print("<th>".&mt("Author(s)")."</th>\n")
558: if ($hash{'display_attrs_4'} == 1);
559: $r->print("<th>".&mt("Keywords")."</th>\n")
560: if ($hash{'display_attrs_5'} == 1);
561: $r->print("<th>".&mt("Language")."</th>\n")
562: if ($hash{'display_attrs_6'} == 1);
563: $r->print("<th>".&mt("Usage Statistics")." <br />(".
564: &mt("Courses/Network Hits").") ".&mt('updated periodically')."</th>\n")
565: if ($hash{'display_attrs_8'} == 1);
566: $r->print("<th>".&mt("Source Available")."</th>\n")
567: if ($hash{'display_attrs_10'} == 1);
568: $r->print("<th>".&mt("Linked/Related Resources")."</th>\n")
569: if ($hash{'display_attrs_11'} == 1);
570: $r->print("<th>".&mt("Resource")."</th>\n")
571: if ($hash{'display_attrs_7'} == 1);
572: $r->print(&Apache::loncommon::end_data_table_header_row());
573:
574: # ----------------- read in what directories have previously been set to "open"
575: foreach (keys %hash) {
576: if ($_ =~ /^diropen_status_/) {
577: my $key = $_;
578: $key =~ s/^diropen_status_//;
579: $dirs{$key} = $hash{$_};
580: }
581: }
582:
583: if ($env{'form.openuri'}) { # take care of review and refresh options
584: my $uri=$env{'form.openuri'};
585: if (exists($hash{'diropen_status_'.$uri})) {
586: my $cursta = $hash{'diropen_status_'.$uri};
587: $dirs{$uri} = 'open';
588: $hash{'diropen_status_'.$uri} = 'open';
589: if ($cursta eq 'open') {
590: $dirs{$uri} = 'closed';
591: $hash{'diropen_status_'.$uri} = 'closed';
592: }
593: } else {
594: $hash{'diropen_status_'.$uri} = 'open';
595: $dirs{$uri} = 'open';
596: }
597: }
598:
599: my $toplevel;
600: my $indent = 0;
601: $uri = $uri.'/' if $uri !~ /.*\/$/;
602:
603: if ($env{'form.dirPointer'} ne 'on') {
604: $hash{'top.level'} = $uri;
605: $toplevel = $uri;
606: } else {
607: $toplevel = $hash{'top.level'};
608: }
609:
610: # -------------------------------- if not at top level, provide an uplink arrow
611: if ($toplevel ne '/res/'){
612: my (@uri_com) = split(/\//,$uri);
613: pop @uri_com;
614: my $upone = join('/',@uri_com);
615: my @list = qw (0);
616: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
617: $indent = 1;
618: }
619:
620: # -------- recursively go through all the directories and output as appropriate
621: &scanDir ($r,$toplevel,$indent,\%hash);
622:
623: # -------------------------------------------------------------- end the tables
624: $r->print(&Apache::loncommon::end_data_table());
625:
626: # ---------------------------- embed hidden information useful for group import
627: $r->print("<form name='fnum' action=''>");
628: $r->print("<input type='hidden' name='fnum' value='$fnum' /></form>");
629:
630: # --------------------------------------------------- end the output and return
631: $r->print(&Apache::loncommon::end_page()."\n");
632: }
633: if(! $c->aborted()) {
634: # write back into the temporary file
635: my %dbfile;
636: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
637: while (my($key,$value) = each(%hash)) {
638: $dbfile{$key}=$value;
639: }
640: untie(%dbfile);
641: }
642: }
643:
644: return OK;
645: }
646:
647: # ----------------------------------------------- recursive scan of a directory
648: sub scanDir {
649: my ($r,$startdir,$indent,$hashref)=@_;
650: my $c = $r->connection();
651: my ($compuri,$curdir);
652: my $dirptr=16384;
653: my $obs;
654: $indent++;
655: my %dupdirs = %dirs;
656: my @list=&get_list($r,$startdir);
657: foreach my $line (@list) {
658: return if ($c->aborted());
659: #This is a kludge, sorry aboot this
660: my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
661: next if($strip =~ /.*\.meta$/ | $obs eq '1');
662: my (@fileparts) = split(/\./,$strip);
663: if ($hash{'display_attrs_9'} != 1) {
664: # if not all versions to be shown
665: if (scalar(@fileparts) >= 3) {
666: my $fext = pop @fileparts;
667: my $ov = pop @fileparts;
668: my $fname = join ('.',@fileparts,$fext);
669: next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
670: }
671: }
672:
673: if ($dom eq 'domain') {
674: # dom list has full path /res/<domain name>/ already
675: $curdir='';
676: $compuri = (split(/\&/,$line))[0];
677: } else {
678: # user, dir & file have name only, i.e., w/o path
679: $compuri = join('',$startdir,$strip,'/');
680: $curdir = $startdir;
681: }
682: my $diropen = 'closed';
683: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
684: while (my ($key,$val)= each %dupdirs) {
685: if ($key eq $compuri and $val eq "open") {
686: $diropen = "opened";
687: delete($dupdirs{$key});
688: delete($dirs{$key});
689: }
690: }
691: }
692: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
693: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
694: }
695: $indent--;
696: }
697:
698: # --------------- get complete matched list based on the uri (returns an array)
699: sub get_list {
700: my ($r,$uri)=@_;
701: my @list=();
702: (my $luri = $uri) =~ s/\//_/g;
703: if ($env{'form.updatedisplay'}) {
704: foreach (keys %hash) {
705: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
706: delete $hash{$_} if ($_ =~ /^dirlist_timestamp_files_/);
707: }
708: }
709:
710: if (defined($hash{'dirlist_files_'.$luri}) &&
711: $hash{'dirlist_timestamp_files_'.$luri}+600 > (time)) {
712: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
713: } elsif ($uri=~/\.(page|sequence)\/$/) {
714: # is a page or a sequence
715: $uri=~s/\/$//;
716: $uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
717: $uri=~s/\/+/\//g;
718: foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
719: my @ratpart=split(/\:/,$_);
720: push(@list,&LONCAPA::map::qtescape($ratpart[1]));
721: }
722: $hash{'dirlist_files_'.$luri} = join("\n",@list);
723: } else {
724: # is really a directory
725: @list = &Apache::lonnet::dirlist($uri);
726: $hash{'dirlist_files_'.$luri} = join("\n",@list);
727: $hash{'dirlist_timestamp_files_'.$luri} = time;
728: }
729: return @list=&match_ext($r,@list);
730: }
731:
732: sub dynmetaread {
733: my $uri=shift;
734: if (($hash{'display_attrs_8'}==1) || ($hash{'display_attrs_11'}==1)) {
735: # We don't want the filename
736: $uri=~s/\/[^\/]+$//;
737: # Did we already see this?
738: my $builddir=$uri;
739: while ($builddir) {
740: if ($dynread{$builddir}) {
741: return 0;
742: }
743: $builddir=~s/\/[^\/]+$//;
744: }
745: # Actually get the data
746: %dynhash=
747: (%dynhash,&Apache::lonmeta::get_dynamic_metadata_from_sql($uri.'/'));
748: # Remember that we got it
749: $dynread{$uri}=1;
750: }
751: }
752:
753: sub initdebug {
754: my $start_page=
755: &Apache::loncommon::start_page('Debug',undef,
756: {'only_body' => 1,});
757: $start_page =~ s/\n/ /g;
758: return <<ENDJS;
759: <script type="text/javascript">
760: var debugging = true;
761: if (debugging) {
762: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
763: }
764:
765: function output(text) {
766: if (debugging) {
767: debuggingWindow.document.writeln(text);
768: }
769: }
770: output('$start_page<pre>');
771: </script>
772: ENDJS
773: }
774:
775: sub writedebug {
776: my ($text) = @_;
777: return "<script type=\"text/javascript\">output('$text');</script>";
778: }
779:
780: # -------------------- filters out files based on extensions (returns an array)
781: sub match_ext {
782: my ($r,@packlist)=@_;
783: my @trimlist;
784: my $nextline;
785: my @fileext;
786: my $dirptr=16384;
787:
788: foreach my $line (@packlist) {
789: chomp $line;
790: $line =~ s/^\/home\/httpd\/html//;
791: my @unpackline = split (/\&/,$line);
792: next if ($unpackline[0] eq '.');
793: next if ($unpackline[0] eq '..');
794: my @filecom = split (/\./,$unpackline[0]);
795: my $fext = pop(@filecom);
796: my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
797: if ($fnptr == 0 and $unpackline[3] ne "") {
798: my $embstyle = &Apache::loncommon::fileembstyle($fext);
799: push @trimlist,$line if (defined($embstyle) &&
800: ($embstyle ne 'hdn' or $fext eq 'meta'));
801: } else {
802: push @trimlist,$line;
803: }
804: }
805: @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
806: return @trimlist;
807: }
808:
809: # ------------------------------- displays one line in appropriate table format
810: sub display_line {
811: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
812: my (@pathfn, $fndir);
813: # there could be relative paths (files actually belonging into this directory)
814: # or absolute paths (for example, from sequences)
815: my $absolute;
816: my $pathprefix;
817: if ($line=~m|^/res/| && $startdir ne '') {
818: $absolute=1;
819: $pathprefix='';
820: } else {
821: $absolute=0;
822: $pathprefix=$startdir;
823: }
824: my $dirptr=16384;
825: #SB my $fileclr="#ffffe6";
826: my $iconpath= $r->dir_config('lonIconsURL') . '/';
827:
828: my @filecom = split (/\&/,$line);
829: my @pathcom = split (/\//,$filecom[0]);
830: my $listname = $pathcom[scalar(@pathcom)-1];
831: my $fnptr = $filecom[3]&$dirptr;
832: my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
833: $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
834:
835: my $tabtag='</td>';
836: my $i=0;
837: while ($i<=11) {
838: $tabtag=join('',$tabtag,"<td> </td>")
839: if ($i != 9 &&
840: $hash{'display_attrs_'.$i} == 1);
841: $i++;
842: }
843: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
844:
845: # display uplink arrow
846: if ($filecom[1] eq 'viewOneUp') {
847: my $updir=$startdir;
848: # -------------- Filter out sequence containment in crumbs and "recent folders"
849: $updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
850: $updir=~s/\/+/\//g;
851:
852: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
853: $r->print(&Apache::loncommon::start_data_table_row()); # valign="$valign" ?!?
854: $r->print($extrafield);
855: $r->print("<td>\n");
856: $r->print ('<form method="post" name="dirpathUP" action="'.$updir.
857: '/" '.
858: 'onSubmit="return rep_dirpath(\'UP\','.
859: 'document.forms.fileattr.acts.value)" '.
860: 'enctype="application/x-www-form-urlencoded"'.
861: '>'."\n");
862: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
863: $r->print ('<input type=hidden name=openuri value="'.
864: $startdir.'" />'."\n");
865: $r->print ('<input type="hidden" name="acts" value="" />'."\n");
866: $r->print ('<input src="'.$iconpath.'arrow_up.gif"');
867: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
868: "\n");
869: $r->print(&mt("Up")."</form>$tabtag");
870: $r->print(&Apache::loncommon::end_data_table_row());
871: return OK;
872: }
873: # Do we have permission to look at this?
874:
875: if($filecom[15] ne '1') { return OK if (!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])); }
876:
877: # make absolute links appear on different background
878: #SB if ($absolute) { $fileclr='#ccdd99'; }
879:
880: # display domain
881: if ($filecom[1] eq 'domain') {
882: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n")
883: if ($env{'form.dirPointer'} eq "on");
884: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
885: $r->print(&Apache::loncommon::start_data_table_row()); # valign="$valign" ?!?"
886: $r->print($extrafield);
887: $r->print("<td>");
888: &begin_form ($r,$filecom[0]);
889: my $anchor = $filecom[0];
890: $anchor =~ s/\W//g;
891: $r->print ('<a name="'.$anchor.'"></a>');
892: $r->print ('<input type="hidden" name="acts" value="" />');
893: $r->print ('<input src="'.$iconpath.'folder_pointer_'.
894: $diropen.'.gif"');
895: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
896: "\n");
897: my $quotable_filecom = &Apache::loncommon::escape_single($filecom[0]);
898: $r->print ('<a href="javascript:gothere(\''.$quotable_filecom.
899: '\')"><img alt="" src="'.$iconpath.'server.gif"');
900: $r->print (' class="LC_icon" /></a>'."\n");
901: $r->print (&mt("Domain")." - $listname ");
902: if (&Apache::lonnet::domain($listname,'description')) {
903: $r->print("(".&Apache::lonnet::domain($listname,'description').
904: ")");
905: }
906: $r->print("</form>$tabtag");
907: $r->print(&Apache::loncommon::end_data_table_row());
908: return OK;
909:
910: # display user directory
911: }
912: if ($filecom[1] eq 'user') {
913: # $r->print("<tr valign=$valign bgcolor=\"$fileclr\">$extrafield");
914: my $curdir = $startdir.$filecom[0].'/';
915: my $anchor = $curdir;
916: $anchor =~ s/\W//g;
917: #SB $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
918: $r->print(&Apache::loncommon::start_data_table_row()
919: .$extrafield.'<td valign="'.$valign.'">');
920: &begin_form ($r,$curdir);
921: $r->print ('<a name="'.$anchor.'"></a><img alt="" src="'.$iconpath.
922: 'whitespace1.gif" class="LC_icon" />'."\n");
923: $r->print ('<input type="hidden" name="acts" value="" />');
924: $r->print ('<input src="'.$iconpath.'folder_pointer_'.$diropen.
925: '.gif"');
926: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
927: "\n");
928: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
929: $r->print ('<a href="javascript:gothere(\''.$quotable_curdir
930: .'\')"><img alt="'.$msg.'" src="'.
931: $iconpath.'quill.gif" class="LC_indexer_icon" /></a>');
932: my $domain=(split(m|/|,$startdir))[2];
933: my $plainname=&Apache::loncommon::plainname($listname,$domain);
934: $r->print ($listname);
935: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
936: $r->print('</form>'.$tabtag);
937: $r->print(&Apache::loncommon::end_data_table_row());
938: return OK;
939: }
940:
941: # display file
942: if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
943: my $title;
944: my $filelink = $pathprefix.$filecom[0];
945: if ($hash{'display_attrs_0'} == 1) {
946: $title = &Apache::lonnet::gettitle($filelink);
947: }
948: my @file_ext = split (/\./,$listname);
949: my $curfext = $file_ext[-1];
950: if (@Omit) {
951: foreach (@Omit) { return OK if (lc($curfext) eq $_); }
952: }
953: if (@Only) {
954: my $skip = 1;
955: foreach (@Only) { $skip = 0 if (lc($curfext) eq $_); }
956: return OK if ($skip > 0);
957: }
958: # Set the icon for the file
959: my $iconname = &Apache::loncommon::icon($listname);
960: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\"><td nowrap='nowrap' valign='top'>");
961: $r->print(&Apache::loncommon::start_data_table_row()); # valign="$valign" ?!?"
962: $r->print('<td nowrap="nowrap" valign="top">');
963:
964: if ($env{'form.catalogmode'} eq 'interactive') {
965: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
966: $r->print("<a href=\"javascript:select_data(\'",
967: $quotable_filelink,"')\">");
968: $r->print("<img alt=\"\" src='",$iconpath,"select.gif' class='LC_icon' /></a>".
969: "\n");
970: $r->print("</td><td nowrap='nowrap' valign='top'>");
971: } elsif ($env{'form.catalogmode'} eq 'import') {
972: $r->print("<form name='form$fnum' action=''>\n");
973: $r->print("<input type='checkbox' name='filelink"."' ".
974: "value='$filelink' onClick='".
975: "javascript:queue(\"form$fnum\")' ");
976: if ($hash{'store_'.$filelink}) {
977: $r->print("checked");
978: }
979: $r->print(" />\n");
980: $r->print("</form></td><td nowrap='nowrap' valign='top'>");
981: $hash{"pre_${fnum}_link"}=$filelink;
982: $hash{"pre_${fnum}_title"}=$title;
983: if (!$hash{"pre_${fnum}_title"}) {
984: $hash{"pre_${fnum}_title"} = 'Not_retrieved';
985: }
986: $fnum++;
987: }
988: # Form to open or close sequences
989: if ($filelink=~/\.(page|sequence)$/) {
990: my $curdir = $startdir.$filecom[0].'/';
991: &begin_form($r,$curdir);
992: $indent--;
993: }
994: # General indentation
995: if ($indent > 0 and $indent < 11) {
996: $r->print("<img alt=\"\" src='",$iconpath,"whitespace",$indent,
997: ".gif' class='LC_icon' />\n");
998: } elsif ($indent >0) {
999: my $ten = int($indent/10.);
1000: my $rem = $indent%10.0;
1001: my $count = 0;
1002: while ($count < $ten) {
1003: $r->print("<img alt=\"\" src=".$iconpath.
1004: "whitespace10.gif class='LC_icon' />\n");
1005: $count++;
1006: }
1007: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
1008: ".gif class='LC_icon' />\n") if $rem > 0;
1009: }
1010: # Sequence open/close icon
1011: if ($filelink=~/\.(page|sequence)$/) {
1012: my $curdir = $startdir.$filecom[0].'/';
1013: my $anchor = $curdir;
1014: $anchor =~ s/\W//g;
1015: $r->print ('<input type="hidden" name="acts" value="" />');
1016: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
1017: 'folder_pointer_'.$diropen.'.gif"');
1018: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
1019: "\n");
1020: }
1021: # Filetype icons
1022: $r->print("<img alt=\"\" src='$iconname' class='LC_icon' />\n");
1023: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
1024:
1025: $r->print (" <a href=\"javascript:openWindow('".$quotable_filelink.
1026: "?inhibitmenu=yes','previewfile','450','500','no','yes','yes');\"".
1027: " target=\"_self\">$listname</a> ");
1028: $quotable_filelink = &Apache::loncommon::escape_single($filelink.'.meta');
1029: &Apache::loncommon::inhibit_menu_check(\$quotable_filelink);
1030: $r->print (" (<a href=\"javascript:openWindow('".$quotable_filelink.
1031: "?inhibitmenu=yes','metadatafile','500','550','no','yes','no');\" ".
1032: " target=\"_self\">".&mt('metadata')."</a>) ");
1033: # Close form to open/close sequence
1034: if ($filelink=~/\.(page|sequence)$/) {
1035: $r->print('</form>');
1036: }
1037: $r->print("</td>\n");
1038: if ($hash{'display_attrs_0'} == 1) {
1039: $r->print('<td> '.($title eq '' ? ' ' : $title).
1040: ' </td>'."\n");
1041: }
1042: $r->print('<td align=right> ',
1043: $filecom[8]," </td>\n")
1044: if $hash{'display_attrs_1'} == 1;
1045: $r->print('<td> '.
1046: (&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
1047: if $hash{'display_attrs_2'} == 1;
1048: $r->print('<td> '.
1049: (&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
1050: if $hash{'display_attrs_3'} == 1;
1051:
1052: if ($hash{'display_attrs_4'} == 1) {
1053: my $author = &Apache::lonnet::metadata($filelink,'author');
1054: $r->print('<td> '.($author eq '' ? ' ' : $author).
1055: " </td>\n");
1056: }
1057: if ($hash{'display_attrs_5'} == 1) {
1058: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1059: # $keywords = ' ' if (!$keywords);
1060: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1061: " </td>\n");
1062: }
1063: #'
1064:
1065: if ($hash{'display_attrs_6'} == 1) {
1066: my $lang = &Apache::lonnet::metadata($filelink,'language');
1067: $lang = &Apache::loncommon::languagedescription($lang);
1068: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1069: " </td>\n");
1070: }
1071: if ($hash{'display_attrs_8'} == 1) {
1072: # statistics
1073: &dynmetaread($filelink);
1074: $r->print("<td>");
1075: &dynmetaprint($r,$filelink,'count');
1076: &dynmetaprint($r,$filelink,'course');
1077: &dynmetaprint($r,$filelink,'stdno');
1078: &dynmetaprint($r,$filelink,'avetries');
1079: &dynmetaprint($r,$filelink,'difficulty');
1080: &dynmetaprint($r,$filelink,'disc');
1081: &dynmetaprint($r,$filelink,'clear');
1082: &dynmetaprint($r,$filelink,'technical');
1083: &dynmetaprint($r,$filelink,'correct');
1084: &dynmetaprint($r,$filelink,'helpful');
1085: &dynmetaprint($r,$filelink,'depth');
1086: $r->print(" </td>\n");
1087:
1088: }
1089: if ($hash{'display_attrs_10'} == 1) {
1090: my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
1091: if($source eq 'open') {
1092: my $sourcelink = &Apache::lonsource::make_link($filelink,$listname);
1093: my $quotable_sourcelink = &Apache::loncommon::escape_single($sourcelink);
1094: &Apache::loncommon::inhibit_menu_check(\$quotable_sourcelink);
1095: $r->print('<td>'."<a href=\"javascript:openWindow('"
1096: .$quotable_sourcelink.
1097: "', 'previewsource', '700', '700', 'no', 'yes','yes');\"".
1098: " target=\"_self\">".&mt('Source Code')."</a> "."</td>\n");
1099: } else { #A cuddled else. :P
1100: $r->print("<td> </td>\n");
1101: }
1102: }
1103: if ($hash{'display_attrs_11'} == 1) {
1104: # links
1105: &dynmetaread($filelink);
1106: $r->print('<td>');
1107: &coursecontext($r,$filelink);
1108: &dynmetaprint($r,$filelink,'goto_list');
1109: &dynmetaprint($r,$filelink,'comefrom_list');
1110: &dynmetaprint($r,$filelink,'sequsage_list');
1111: &dynmetaprint($r,$filelink,'dependencies');
1112: &dynmetaprint($r,$filelink,'course_list');
1113: $r->print('</td>');
1114: }
1115: if ($hash{'display_attrs_7'} == 1) {
1116: # Show resource
1117: my $output=&showpreview($filelink);
1118: $r->print('<td> '.($output eq '' ? ' ':$output).
1119: " </td>\n");
1120: }
1121: $r->print(&Apache::loncommon::end_data_table_row());
1122: }
1123:
1124: # -- display directory
1125: if ($fnptr == $dirptr) {
1126: my $curdir = $startdir.$filecom[0].'/';
1127: my $anchor = $curdir;
1128: $anchor =~ s/\W//g;
1129: #SB $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
1130: $r->print(&Apache::loncommon::start_data_table_row()); # SB: bgcolor suggestion: darkgrey ("LC_info_row"?!?)
1131: # $r->print('<tr class="LC_info_row">');
1132: $r->print($extrafield.'<td valign="'.$valign.'">');
1133: &begin_form ($r,$curdir);
1134: my $indentm1 = $indent-1;
1135: if ($indentm1 < 11 and $indentm1 > 0) {
1136: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$indentm1,
1137: ".gif class='LC_icon' />\n");
1138: } else {
1139: my $ten = int($indentm1/10.);
1140: my $rem = $indentm1%10.0;
1141: my $count = 0;
1142: while ($count < $ten) {
1143: $r->print ("<img alt=\"\" src=",$iconpath
1144: ,"whitespace10.gif class='LC_icon' />\n");
1145: $count++;
1146: }
1147: $r->print ("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
1148: ".gif class='LC_icon' />\n") if $rem > 0;
1149: }
1150: $r->print ('<input type="hidden" name="acts" value="" />');
1151: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
1152: 'folder_pointer_'.$diropen.'.gif"');
1153: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
1154: "\n");
1155: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
1156: $r->print ('<a href="javascript:gothere(\''
1157: .$quotable_curdir.'\')">'
1158: .'<img alt="'.&mt('Open Folder').'"src="'.
1159: $iconpath.'folder_'.$diropen.'.gif" class="LC_icon" /></a>'.
1160: "\n");
1161: $r->print ("$listname</form></td>\n");
1162: # Attributes
1163: my $filelink = $startdir.$filecom[0].'/default';
1164:
1165: if ($hash{'display_attrs_0'} == 1) {
1166: my $title = &Apache::lonnet::gettitle($filelink);
1167: $r->print('<td> '.($title eq '' ? ' ' : $title).
1168: ' </td>'."\n");
1169: }
1170: $r->print('<td align="right"> ',
1171: $filecom[8]," </td>\n")
1172: if $hash{'display_attrs_1'} == 1;
1173: $r->print('<td> '.
1174: (&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
1175: if $hash{'display_attrs_2'} == 1;
1176: $r->print('<td> '.
1177: (&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
1178: if $hash{'display_attrs_3'} == 1;
1179:
1180: if ($hash{'display_attrs_4'} == 1) {
1181: my $author = &Apache::lonnet::metadata($filelink,'author');
1182: $r->print('<td> '.($author eq '' ? ' ' : $author).
1183: " </td>\n");
1184: }
1185: if ($hash{'display_attrs_5'} == 1) {
1186: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1187: # $keywords = ' ' if (!$keywords);
1188: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1189: " </td>\n");
1190: }
1191: if ($hash{'display_attrs_6'} == 1) {
1192: my $lang = &Apache::lonnet::metadata($filelink,'language');
1193: $lang = &Apache::loncommon::languagedescription($lang);
1194: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1195: " </td>\n");
1196: }
1197: if ($hash{'display_attrs_8'} == 1) {
1198: $r->print('<td> </td>');
1199: }
1200: if ($hash{'display_attrs_10'} == 1) {
1201: $r->print('<td> </td>');
1202: }
1203: if ($hash{'display_attrs_11'} == 1) {
1204: $r->print('<td> </td>');
1205: }
1206: if ($hash{'display_attrs_7'} == 1) {
1207: $r->print('<td> </td>');
1208: }
1209: $r->print(&Apache::loncommon::end_data_table_row());
1210: }
1211:
1212: }
1213:
1214: sub coursecontext {
1215: my ($r,$filelink)=@_;
1216: my $filesymb=&Apache::lonnet::symbread($filelink);
1217: if ($filesymb) {
1218: my ($map,$index,$resource)=&Apache::lonnet::decode_symb($filesymb);
1219: $r->print(&mt('Already in this course:<br />[_1] in folder/map [_2].<br />',
1220: &Apache::lonnet::gettitle($resource),
1221: &Apache::lonnet::gettitle($map)));
1222: }
1223: }
1224:
1225: sub showpreview {
1226: my ($filelink)=@_;
1227: if ($filelink=~m-^(/ext/|http://)-) {
1228: return &mt('External Resource, preview not enabled');
1229: }
1230: my ($curfext)=($filelink=~/\.(\w+)$/);
1231: my $output='';
1232: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
1233: if ($embstyle eq 'ssi') {
1234: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
1235: '.tmp';
1236: if ((!$env{'form.updatedisplay'}) &&
1237: (-e $cache)) {
1238: open(FH,$cache);
1239: $output=join("\n",<FH>);
1240: close(FH);
1241: } else {
1242: # In update display mode, remove old cache. This is done to retroactively
1243: # clean up course context renderings.
1244: if (-e $cache) {
1245: unlink($cache);
1246: }
1247: $output=&Apache::lonnet::ssi_body($filelink);
1248: # Is access denied? Don't render, don't store
1249: if ($output=~/LONCAPAACCESSCONTROLERRORSCREEN/s) {
1250: $output='';
1251: # Was this rendered in course content? Don't store
1252: } elsif (!&Apache::lonnet::symbread($filelink)) {
1253: open(FH,">$cache");
1254: print FH $output;
1255: close(FH);
1256: }
1257: }
1258: $output='<font size="-2">'.$output.'</font>';
1259: } elsif ($embstyle eq 'img') {
1260: $output='<img alt="'.&mt('Preview').'" src="'.$filelink.'" />';
1261: } elsif ($filelink=~m{^/res/($match_domain)/($match_username)/}) {
1262: $output='<img alt="'.&mt('Preview').'" src="http://'.
1263: &Apache::lonnet::hostname(&Apache::lonnet::homeserver($2,$1)).
1264: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1265: }
1266: return $output;
1267: }
1268:
1269: sub dynmetaprint {
1270: my ($r,$filelink,$item)=@_;
1271: if ($dynhash{$filelink}->{$item}) {
1272: $r->print("\n<br />".$fieldnames{$item}.': '.
1273: &Apache::lonmeta::prettyprint($item,
1274: $dynhash{$filelink}->{$item},
1275: (($env{'form.catalogmode'} ne 'import')?'preview':''),
1276: '',
1277: (($env{'form.catalogmode'} eq 'import')?'document.forms.fileattr':''),1));
1278: }
1279: }
1280:
1281: # ------------------- prints the beginning of a form for directory or file link
1282: sub begin_form {
1283: my ($r,$uri) = @_;
1284: my $anchor = $uri;
1285: $anchor =~ s/\W//g;
1286: $uri=&Apache::loncommon::escape_single($uri);
1287: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1288: '#'.$anchor.
1289: '" onSubmit="return rep_dirpath(\''.$dnum.'\''.
1290: ',document.forms.fileattr.acts.value)" '.
1291: 'enctype="application/x-www-form-urlencoded">'."\n");
1292: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'" />'.
1293: "\n");
1294: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n");
1295: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
1296: $dnum++;
1297: }
1298:
1299: # --------- settings whenever the user causes the indexer window to be launched
1300: sub start_fresh_session {
1301: my ($hash) = @_;
1302: delete $hash->{'form.catalogmode'};
1303: delete $hash->{'form.mode'};
1304: delete $hash->{'form.form'};
1305: delete $hash->{'form.element'};
1306: delete $hash->{'form.omit'};
1307: delete $hash->{'form.only'};
1308: foreach (keys %{$hash}) {
1309: delete $hash->{$_} if (/^(pre_|store)/);
1310: }
1311: }
1312:
1313: # ------------------------------------------------------------------- setvalues
1314: sub setvalues {
1315: # setvalues is used in registerurl to synchronize the database
1316: # hash and environment hashes
1317: my ($H1,$h1key,$H2,$h2key) =@_;
1318: #
1319: if (exists $H2->{$h2key}) {
1320: $H1->{$h1key} = $H2->{$h2key};
1321: } elsif (exists $H1->{$h1key}) {
1322: $H2->{$h2key} = $H1->{$h1key};
1323: }
1324: }
1325:
1326: 1;
1327:
1328: sub cleanup {
1329: if (tied(%hash)){
1330: &Apache::lonnet::logthis('Cleanup indexer: hash');
1331: }
1332: return OK;
1333: }
1334:
1335:
1336:
1337:
1338:
1339: =head1 NAME
1340:
1341: Apache::lonindexer - mod_perl module for cross server filesystem browsing
1342:
1343: =head1 SYNOPSIS
1344:
1345: Invoked by /etc/httpd/conf/srm.conf:
1346:
1347: <LocationMatch "^/res.*/$">
1348: SetHandler perl-script
1349: PerlHandler Apache::lonindexer
1350: </LocationMatch>
1351:
1352: =head1 INTRODUCTION
1353:
1354: This module enables a scheme of browsing across a cross server.
1355:
1356: This is part of the LearningOnline Network with CAPA project
1357: described at http://www.lon-capa.org.
1358:
1359: =head1 BEGIN SUBROUTINE
1360:
1361: This routine is only run once after compilation.
1362:
1363: =over 4
1364:
1365: =item *
1366:
1367: Initializes %language hash table.
1368:
1369: =back
1370:
1371: =head1 HANDLER SUBROUTINE
1372:
1373: This routine is called by Apache and mod_perl.
1374:
1375: =over 4
1376:
1377: =item *
1378:
1379: read in machine configuration variables
1380:
1381: =item *
1382:
1383: see if called from an interactive mode
1384:
1385: =item *
1386:
1387: refresh environment with user database values (in %hash)
1388:
1389: =item *
1390:
1391: define extra fields and buttons in case of special mode
1392:
1393: =item *
1394:
1395: set catalogmodefunctions to have extra needed javascript functionality
1396:
1397: =item *
1398:
1399: print header
1400:
1401: =item *
1402:
1403: evaluate actions from previous page (both cumulatively and chronologically)
1404:
1405: =item *
1406:
1407: output title
1408:
1409: =item *
1410:
1411: get state of file attributes to be showing
1412:
1413: =item *
1414:
1415: output state of file attributes to be showing
1416:
1417: =item *
1418:
1419: output starting row to the indexed file/directory hierarchy
1420:
1421: =item *
1422:
1423: read in what directories have previously been set to "open"
1424:
1425: =item *
1426:
1427: if not at top level, provide an uplink arrow
1428:
1429: =item *
1430:
1431: recursively go through all the directories and output as appropriate
1432:
1433: =item *
1434:
1435: information useful for group import
1436:
1437: =item *
1438:
1439: end the tables
1440:
1441: =item *
1442:
1443: end the output and return
1444:
1445: =back
1446:
1447: =head1 OTHER SUBROUTINES
1448:
1449: =over 4
1450:
1451: =item *
1452:
1453: scanDir - recursive scan of a directory
1454:
1455: =item *
1456:
1457: get_list - get complete matched list based on the uri (returns an array)
1458:
1459: =item *
1460:
1461: match_ext - filters out files based on extensions (returns an array)
1462:
1463: =item *
1464:
1465: display_line - displays one line in appropriate table format
1466:
1467: =item *
1468:
1469: begin_form - prints the beginning of a form for directory or file link
1470:
1471: =item *
1472:
1473: start_fresh_session - settings whenever the user causes the indexer window
1474: to be launched
1475:
1476: =back
1477:
1478: =cut
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