1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.175 2007/08/02 00:10:59 banghart 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,%typechk);
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: $r->print(&Apache::loncommon::start_page('Browse Resources',$js,
411: {'domain' => $headerdom,}));
412: # ---------------------------------- get state of file types to be showing
413: if ($env{'form.only'}) {
414: if ($env{'form.only'} eq 'problem' ) {
415: $typechk{'problem'} = 'selected';
416: } elsif ($env{'form.only'} eq 'gif,jpg,jpeg' ) {
417: $typechk{'graphic'} = 'selected';
418: }
419: } else {
420: $typechk{'all'} = 'selected';
421: }
422:
423:
424: # ---------------------------------- get state of file attributes to be showing
425: if ($env{'form.attrs'}) {
426: for (my $i=0; $i<=11; $i++) {
427: delete $hash{'display_attrs_'.$i};
428: if ($env{'form.attr'.$i} == 1) {
429: $attrchk[$i] = 'checked';
430: $hash{'display_attrs_'.$i} = 1;
431: }
432: }
433: } else {
434: for (my $i=0; $i<=11; $i++) {
435: $attrchk[$i] = 'checked' if $hash{'display_attrs_'.$i} == 1;
436: }
437: }
438:
439: # ------------------------------- output state of file attributes to be showing
440: # All versions has to the last item
441: # since it does not take an extra col
442: my %lt=&Apache::lonlocal::texthash(
443: 'ti' => 'Title',
444: 'si' => 'Size',
445: 'la' => 'Last access',
446: 'lm' => 'Last modified',
447: 'st' => 'Statistics',
448: 'au' => 'Author',
449: 'kw' => 'Keywords',
450: 'ln' => 'Language',
451: 'sa' => 'Source Available',
452: 'sr' => 'Show resource',
453: 'li' => 'Linked/Related Resources',
454: 'av' => 'All versions',
455: 'ud' => 'Update Display',
456: 'pr' => 'Problems',
457: 'gr' => 'Graphics',
458: 'at' => 'All types'
459: );
460: $r->print(<<END);
461: <form method="post" name="fileattr" action="$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: <label><select name="only" onClick="this.form.submit()">
486: <option value='problem' $typechk{'problem'}>Problems</option>
487: <option value='gif,jpg,jpeg' $typechk{'graphic'}>Graphics</option>
488: <option value='' $typechk{'all'}>All</option>
489: </select>File Types Displayed</label>
490: <br />
491: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
492: <input type="hidden" name="acts" value="" />
493: $closebutton $groupimportbutton
494: END
495: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
496: # -------------- Filter out sequence containment in crumbs and "recent folders"
497: my $storeuri=$uri;
498: $storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
499: $storeuri=~s/\/+/\//g;
500: # ---------------------------------------------------------------- Bread crumbs
501: $r->print(&Apache::lonhtmlcommon::crumbs($storeuri,'','',
502: (($env{'form.catalogmode'} eq 'import')?
503: 'document.forms.fileattr':'')).
504: &Apache::lonhtmlcommon::select_recent('residx','resrecent',
505: '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();'));
506: # -------------------------------------------------------- Resource Home Button
507: my $reshome=$env{'course.'.$env{'request.course.id'}.'.reshome'};
508: if ($reshome) {
509: $r->print("<font size='+2'><a href='");
510: if ($env{'form.catalogmode'} eq 'import') {
511: $r->print('javascript:document.forms.fileattr.action="'.&Apache::loncommon::inhibit_menu_check($reshome).'";document.forms.fileattr.submit();');
512: } else {
513: $r->print($reshome);
514: }
515: $r->print("'>".&mt('Home').'</a></font>');
516: }
517: $r->print('</form>');
518: # ------------------------------------------------------ Remember where we were
519: &Apache::loncommon::storeresurl($storeuri);
520: &Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
521: # -------------------------------------------------- Check All and Uncheck all
522: if ($env{'form.catalogmode'} eq 'import') {
523: $r->print('<br /><input type="button" value="'.&mt("Check All").'" id="checkallbutton" onClick="javascript:checkAll()" />');
524: $r->print('<input type="button" value="'.&mt("Uncheck All").'" id="uncheckallbutton" onClick="javascript:uncheckAll()" />');
525: }
526: # ----------------- output starting row to the indexed file/directory hierarchy
527: my $titleclr="#ddffff";
528: #$r->print(&initdebug());
529: #$r->print(&writedebug("Omit:@Omit")) if (@Omit);
530: #$r->print(&writedebug("Only:@Only")) if (@Only);
531: $r->print('<table width="100%" border="0"><tr><td bgcolor="#777777">'."\n");
532: $r->print('<table width="100%" border="0"><tr bgcolor="'.$titleclr.'">'."\n");
533: $r->print("<td $colspan><b>".&mt('Name')."</b></td>\n");
534: $r->print("<td><b>".&mt('Title')."</b></td>\n")
535: if ($hash{'display_attrs_0'} == 1);
536: $r->print("<td align=right><b>".&mt("Size")." (".&mt("bytes").") ".
537: "</b></td>\n") if ($hash{'display_attrs_1'} == 1);
538: $r->print("<td><b>".&mt("Last accessed")."</b></td>\n")
539: if ($hash{'display_attrs_2'} == 1);
540: $r->print("<td><b>".&mt("Last modified")."</b></td>\n")
541: if ($hash{'display_attrs_3'} == 1);
542: $r->print("<td><b>".&mt("Author(s)")."</b></td>\n")
543: if ($hash{'display_attrs_4'} == 1);
544: $r->print("<td><b>".&mt("Keywords")."</b></td>\n")
545: if ($hash{'display_attrs_5'} == 1);
546: $r->print("<td><b>".&mt("Language")."</b></td>\n")
547: if ($hash{'display_attrs_6'} == 1);
548: $r->print("<td><b>".&mt("Usage Statistics")." <br />(".
549: &mt("Courses/Network Hits").")</b> ".&mt('updated periodically')."</td>\n")
550: if ($hash{'display_attrs_8'} == 1);
551: $r->print("<td><b>".&mt("Source Available")."</b></td>\n")
552: if ($hash{'display_attrs_10'} == 1);
553: $r->print("<td><b>".&mt("Linked/Related Resources")."</b></td>\n")
554: if ($hash{'display_attrs_11'} == 1);
555: $r->print("<td><b>".&mt("Resource")."</b></td>\n")
556: if ($hash{'display_attrs_7'} == 1);
557: $r->print('</tr>');
558:
559: # ----------------- read in what directories have previously been set to "open"
560: foreach (keys %hash) {
561: if ($_ =~ /^diropen_status_/) {
562: my $key = $_;
563: $key =~ s/^diropen_status_//;
564: $dirs{$key} = $hash{$_};
565: }
566: }
567:
568: if ($env{'form.openuri'}) { # take care of review and refresh options
569: my $uri=$env{'form.openuri'};
570: if (exists($hash{'diropen_status_'.$uri})) {
571: my $cursta = $hash{'diropen_status_'.$uri};
572: $dirs{$uri} = 'open';
573: $hash{'diropen_status_'.$uri} = 'open';
574: if ($cursta eq 'open') {
575: $dirs{$uri} = 'closed';
576: $hash{'diropen_status_'.$uri} = 'closed';
577: }
578: } else {
579: $hash{'diropen_status_'.$uri} = 'open';
580: $dirs{$uri} = 'open';
581: }
582: }
583:
584: my $toplevel;
585: my $indent = 0;
586: $uri = $uri.'/' if $uri !~ /.*\/$/;
587:
588: if ($env{'form.dirPointer'} ne 'on') {
589: $hash{'top.level'} = $uri;
590: $toplevel = $uri;
591: } else {
592: $toplevel = $hash{'top.level'};
593: }
594:
595: # -------------------------------- if not at top level, provide an uplink arrow
596: if ($toplevel ne '/res/'){
597: my (@uri_com) = split(/\//,$uri);
598: pop @uri_com;
599: my $upone = join('/',@uri_com);
600: my @list = qw (0);
601: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
602: $indent = 1;
603: }
604:
605: # -------- recursively go through all the directories and output as appropriate
606: &scanDir ($r,$toplevel,$indent,\%hash);
607:
608:
609: # -------------------------------------------------------------- end the tables
610: $r->print('</table>');
611: # ---------------------------- embed hidden information useful for group import
612: $r->print("<form name='fnum' action=''>");
613: $r->print("<input type='hidden' name='fnum' value='$fnum' /></form>");
614: # -------------------------------------------------------------- end the tables
615: $r->print('</td></tr></table>');
616:
617: # --------------------------------------------------- end the output and return
618: $r->print(&Apache::loncommon::end_page()."\n");
619: }
620: if(! $c->aborted()) {
621: # write back into the temporary file
622: my %dbfile;
623: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
624: while (my($key,$value) = each(%hash)) {
625: $dbfile{$key}=$value;
626: }
627: untie(%dbfile);
628: }
629: }
630:
631: return OK;
632: }
633:
634: # ----------------------------------------------- recursive scan of a directory
635: sub scanDir {
636: my ($r,$startdir,$indent,$hashref)=@_;
637: my $c = $r->connection();
638: my ($compuri,$curdir);
639: my $dirptr=16384;
640: my $obs;
641: $indent++;
642: my %dupdirs = %dirs;
643: my @list=&get_list($r,$startdir);
644: foreach my $line (@list) {
645: return if ($c->aborted());
646: #This is a kludge, sorry aboot this
647: my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
648: next if($strip =~ /.*\.meta$/ | $obs eq '1');
649: my (@fileparts) = split(/\./,$strip);
650: if ($hash{'display_attrs_9'} != 1) {
651: # if not all versions to be shown
652: if (scalar(@fileparts) >= 3) {
653: my $fext = pop @fileparts;
654: my $ov = pop @fileparts;
655: my $fname = join ('.',@fileparts,$fext);
656: next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
657: }
658: }
659:
660: if ($dom eq 'domain') {
661: # dom list has full path /res/<domain name>/ already
662: $curdir='';
663: $compuri = (split(/\&/,$line))[0];
664: } else {
665: # user, dir & file have name only, i.e., w/o path
666: $compuri = join('',$startdir,$strip,'/');
667: $curdir = $startdir;
668: }
669: my $diropen = 'closed';
670: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
671: while (my ($key,$val)= each %dupdirs) {
672: if ($key eq $compuri and $val eq "open") {
673: $diropen = "opened";
674: delete($dupdirs{$key});
675: delete($dirs{$key});
676: }
677: }
678: }
679: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
680: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
681: }
682: $indent--;
683: }
684:
685: # --------------- get complete matched list based on the uri (returns an array)
686: sub get_list {
687: my ($r,$uri)=@_;
688: my @list=();
689: (my $luri = $uri) =~ s/\//_/g;
690: if ($env{'form.updatedisplay'}) {
691: foreach (keys %hash) {
692: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
693: delete $hash{$_} if ($_ =~ /^dirlist_timestamp_files_/);
694: }
695: }
696:
697: if (defined($hash{'dirlist_files_'.$luri}) &&
698: $hash{'dirlist_timestamp_files_'.$luri}+600 > (time)) {
699: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
700: } elsif ($uri=~/\.(page|sequence)\/$/) {
701: # is a page or a sequence
702: $uri=~s/\/$//;
703: $uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
704: $uri=~s/\/+/\//g;
705: foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
706: my @ratpart=split(/\:/,$_);
707: push(@list,&LONCAPA::map::qtescape($ratpart[1]));
708: }
709: $hash{'dirlist_files_'.$luri} = join("\n",@list);
710: } else {
711: # is really a directory
712: @list = &Apache::lonnet::dirlist($uri);
713: $hash{'dirlist_files_'.$luri} = join("\n",@list);
714: $hash{'dirlist_timestamp_files_'.$luri} = time;
715: }
716: return @list=&match_ext($r,@list);
717: }
718:
719: sub dynmetaread {
720: my $uri=shift;
721: if (($hash{'display_attrs_8'}==1) || ($hash{'display_attrs_11'}==1)) {
722: # We don't want the filename
723: $uri=~s/\/[^\/]+$//;
724: # Did we already see this?
725: my $builddir=$uri;
726: while ($builddir) {
727: if ($dynread{$builddir}) {
728: return 0;
729: }
730: $builddir=~s/\/[^\/]+$//;
731: }
732: # Actually get the data
733: %dynhash=
734: (%dynhash,&Apache::lonmeta::get_dynamic_metadata_from_sql($uri.'/'));
735: # Remember that we got it
736: $dynread{$uri}=1;
737: }
738: }
739:
740: sub initdebug {
741: my $start_page=
742: &Apache::loncommon::start_page('Debug',undef,
743: {'only_body' => 1,});
744: $start_page =~ s/\n/ /g;
745: return <<ENDJS;
746: <script type="text/javascript">
747: var debugging = true;
748: if (debugging) {
749: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
750: }
751:
752: function output(text) {
753: if (debugging) {
754: debuggingWindow.document.writeln(text);
755: }
756: }
757: output('$start_page<pre>');
758: </script>
759: ENDJS
760: }
761:
762: sub writedebug {
763: my ($text) = @_;
764: return "<script type=\"text/javascript\">output('$text');</script>";
765: }
766:
767: # -------------------- filters out files based on extensions (returns an array)
768: sub match_ext {
769: my ($r,@packlist)=@_;
770: my @trimlist;
771: my $nextline;
772: my @fileext;
773: my $dirptr=16384;
774:
775: foreach my $line (@packlist) {
776: chomp $line;
777: $line =~ s/^\/home\/httpd\/html//;
778: my @unpackline = split (/\&/,$line);
779: next if ($unpackline[0] eq '.');
780: next if ($unpackline[0] eq '..');
781: my @filecom = split (/\./,$unpackline[0]);
782: my $fext = pop(@filecom);
783: my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
784: if ($fnptr == 0 and $unpackline[3] ne "") {
785: my $embstyle = &Apache::loncommon::fileembstyle($fext);
786: push @trimlist,$line if (defined($embstyle) &&
787: ($embstyle ne 'hdn' or $fext eq 'meta'));
788: } else {
789: push @trimlist,$line;
790: }
791: }
792: @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
793: return @trimlist;
794: }
795:
796: # ------------------------------- displays one line in appropriate table format
797: sub display_line {
798: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
799: my (@pathfn, $fndir);
800: # there could be relative paths (files actually belonging into this directory)
801: # or absolute paths (for example, from sequences)
802: my $absolute;
803: my $pathprefix;
804: if ($line=~m|^/res/| && $startdir ne '') {
805: $absolute=1;
806: $pathprefix='';
807: } else {
808: $absolute=0;
809: $pathprefix=$startdir;
810: }
811: my $dirptr=16384;
812: my $fileclr="#ffffe6";
813: my $iconpath= $r->dir_config('lonIconsURL') . '/';
814:
815: my @filecom = split (/\&/,$line);
816: my @pathcom = split (/\//,$filecom[0]);
817: my $listname = $pathcom[scalar(@pathcom)-1];
818: my $fnptr = $filecom[3]&$dirptr;
819: my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
820: $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
821:
822: my $tabtag='</td>';
823: my $i=0;
824: while ($i<=11) {
825: $tabtag=join('',$tabtag,"<td> </td>")
826: if ($i != 9 &&
827: $hash{'display_attrs_'.$i} == 1);
828: $i++;
829: }
830: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
831:
832: # display uplink arrow
833: if ($filecom[1] eq 'viewOneUp') {
834: my $updir=$startdir;
835: # -------------- Filter out sequence containment in crumbs and "recent folders"
836: $updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
837: $updir=~s/\/+/\//g;
838:
839: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
840: $r->print("<td>\n");
841: $r->print ('<form method="post" name="dirpathUP" action="'.$updir.
842: '/" '.
843: 'onSubmit="return rep_dirpath(\'UP\','.
844: 'document.forms.fileattr.acts.value)" '.
845: 'enctype="application/x-www-form-urlencoded"'.
846: '>'."\n");
847: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
848: $r->print ('<input type=hidden name=openuri value="'.
849: $startdir.'" />'."\n");
850: $r->print ('<input type="hidden" name="acts" value="" />'."\n");
851: $r->print ('<input src="'.$iconpath.'arrow_up.gif"');
852: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
853: "\n");
854: $r->print(&mt("Up")."</form>$tabtag</tr>\n");
855: return OK;
856: }
857: # Do we have permission to look at this?
858:
859: if($filecom[15] ne '1') { return OK if (!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])); }
860:
861: # make absolute links appear on different background
862: if ($absolute) { $fileclr='#ccdd99'; }
863:
864: # display domain
865: if ($filecom[1] eq 'domain') {
866: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n")
867: if ($env{'form.dirPointer'} eq "on");
868: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
869: $r->print("<td>");
870: &begin_form ($r,$filecom[0]);
871: my $anchor = $filecom[0];
872: $anchor =~ s/\W//g;
873: $r->print ('<a name="'.$anchor.'"></a>');
874: $r->print ('<input type="hidden" name="acts" value="" />');
875: $r->print ('<input src="'.$iconpath.'folder_pointer_'.
876: $diropen.'.gif"');
877: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
878: "\n");
879: my $quotable_filecom = &Apache::loncommon::escape_single($filecom[0]);
880: $r->print ('<a href="javascript:gothere(\''.$quotable_filecom.
881: '\')"><img alt="" src="'.$iconpath.'server.gif"');
882: $r->print (' class="LC_icon" /></a>'."\n");
883: $r->print (&mt("Domain")." - $listname ");
884: if (&Apache::lonnet::domain($listname,'description')) {
885: $r->print("(".&Apache::lonnet::domain($listname,'description').
886: ")");
887: }
888: $r->print ("</form>$tabtag</tr>\n");
889: return OK;
890:
891: # display user directory
892: }
893: if ($filecom[1] eq 'user') {
894: # $r->print("<tr valign=$valign bgcolor=\"$fileclr\">$extrafield");
895: my $curdir = $startdir.$filecom[0].'/';
896: my $anchor = $curdir;
897: $anchor =~ s/\W//g;
898: $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
899: &begin_form ($r,$curdir);
900: $r->print ('<a name="'.$anchor.'"></a><img alt="" src="'.$iconpath.
901: 'whitespace1.gif" class="LC_icon" />'."\n");
902: $r->print ('<input type="hidden" name="acts" value="" />');
903: $r->print ('<input src="'.$iconpath.'folder_pointer_'.$diropen.
904: '.gif"');
905: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
906: "\n");
907: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
908: $r->print ('<a href="javascript:gothere(\''.$quotable_curdir
909: .'\')"><img alt="'.$msg.'" src="'.
910: $iconpath.'quill.gif" class="LC_indexer_icon" /></a>');
911: my $domain=(split(m|/|,$startdir))[2];
912: my $plainname=&Apache::loncommon::plainname($listname,$domain);
913: $r->print ($listname);
914: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
915: $r->print ('</form>'.$tabtag.'</tr>'."\n");
916: return OK;
917: }
918:
919: # display file
920: if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
921: my $title;
922: my $filelink = $pathprefix.$filecom[0];
923: if ($hash{'display_attrs_0'} == 1) {
924: $title = &Apache::lonnet::gettitle($filelink);
925: }
926: my @file_ext = split (/\./,$listname);
927: my $curfext = $file_ext[-1];
928: if (@Omit) {
929: foreach (@Omit) { return OK if ($curfext eq $_); }
930: }
931: if (@Only) {
932: my $skip = 1;
933: foreach (@Only) { $skip = 0 if ($curfext eq $_); }
934: return OK if ($skip > 0);
935: }
936: # Set the icon for the file
937: my $iconname = &Apache::loncommon::icon($listname);
938: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\"><td nowrap='nowrap' valign='top'>");
939:
940: if ($env{'form.catalogmode'} eq 'interactive') {
941: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
942: $r->print("<a href=\"javascript:select_data(\'",
943: $quotable_filelink,"')\">");
944: $r->print("<img alt=\"\" src='",$iconpath,"select.gif' class='LC_icon' /></a>".
945: "\n");
946: $r->print("</td><td nowrap='nowrap' valign='top'>");
947: } elsif ($env{'form.catalogmode'} eq 'import') {
948: $r->print("<form name='form$fnum' action=''>\n");
949: $r->print("<input type='checkbox' name='filelink"."' ".
950: "value='$filelink' onClick='".
951: "javascript:queue(\"form$fnum\")' ");
952: if ($hash{'store_'.$filelink}) {
953: $r->print("checked");
954: }
955: $r->print(" />\n");
956: $r->print("</form></td><td nowrap='nowrap' valign='top'>");
957: $hash{"pre_${fnum}_link"}=$filelink;
958: $hash{"pre_${fnum}_title"}=$title;
959: if (!$hash{"pre_${fnum}_title"}) {
960: $hash{"pre_${fnum}_title"} = 'Not_retrieved';
961: }
962: $fnum++;
963: }
964: # Form to open or close sequences
965: if ($filelink=~/\.(page|sequence)$/) {
966: my $curdir = $startdir.$filecom[0].'/';
967: &begin_form($r,$curdir);
968: $indent--;
969: }
970: # General indentation
971: if ($indent > 0 and $indent < 11) {
972: $r->print("<img alt=\"\" src='",$iconpath,"whitespace",$indent,
973: ".gif' class='LC_icon' />\n");
974: } elsif ($indent >0) {
975: my $ten = int($indent/10.);
976: my $rem = $indent%10.0;
977: my $count = 0;
978: while ($count < $ten) {
979: $r->print("<img alt=\"\" src=".$iconpath.
980: "whitespace10.gif class='LC_icon' />\n");
981: $count++;
982: }
983: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
984: ".gif class='LC_icon' />\n") if $rem > 0;
985: }
986: # Sequence open/close icon
987: if ($filelink=~/\.(page|sequence)$/) {
988: my $curdir = $startdir.$filecom[0].'/';
989: my $anchor = $curdir;
990: $anchor =~ s/\W//g;
991: $r->print ('<input type="hidden" name="acts" value="" />');
992: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
993: 'folder_pointer_'.$diropen.'.gif"');
994: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
995: "\n");
996: }
997: # Filetype icons
998: $r->print("<img alt=\"\" src='$iconname' class='LC_icon' />\n");
999: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
1000:
1001: $r->print (" <a href=\"javascript:openWindow('".$quotable_filelink.
1002: "?inhibitmenu=yes','previewfile','450','500','no','yes','yes');\"".
1003: " target=\"_self\">$listname</a> ");
1004: $quotable_filelink = &Apache::loncommon::escape_single($filelink.'.meta');
1005: &Apache::loncommon::inhibit_menu_check(\$quotable_filelink);
1006: $r->print (" (<a href=\"javascript:openWindow('".$quotable_filelink.
1007: "?inhibitmenu=yes','metadatafile','500','550','no','yes','no');\" ".
1008: " target=\"_self\">metadata</a>) ");
1009: # Close form to open/close sequence
1010: if ($filelink=~/\.(page|sequence)$/) {
1011: $r->print('</form>');
1012: }
1013: $r->print("</td>\n");
1014: if ($hash{'display_attrs_0'} == 1) {
1015: $r->print('<td> '.($title eq '' ? ' ' : $title).
1016: ' </td>'."\n");
1017: }
1018: $r->print('<td align=right> ',
1019: $filecom[8]," </td>\n")
1020: if $hash{'display_attrs_1'} == 1;
1021: $r->print('<td> '.
1022: (localtime($filecom[9]))." </td>\n")
1023: if $hash{'display_attrs_2'} == 1;
1024: $r->print('<td> '.
1025: (localtime($filecom[10]))." </td>\n")
1026: if $hash{'display_attrs_3'} == 1;
1027:
1028: if ($hash{'display_attrs_4'} == 1) {
1029: my $author = &Apache::lonnet::metadata($filelink,'author');
1030: $r->print('<td> '.($author eq '' ? ' ' : $author).
1031: " </td>\n");
1032: }
1033: if ($hash{'display_attrs_5'} == 1) {
1034: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1035: # $keywords = ' ' if (!$keywords);
1036: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1037: " </td>\n");
1038: }
1039: #'
1040:
1041: if ($hash{'display_attrs_6'} == 1) {
1042: my $lang = &Apache::lonnet::metadata($filelink,'language');
1043: $lang = &Apache::loncommon::languagedescription($lang);
1044: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1045: " </td>\n");
1046: }
1047: if ($hash{'display_attrs_8'} == 1) {
1048: # statistics
1049: &dynmetaread($filelink);
1050: $r->print("<td>");
1051: &dynmetaprint($r,$filelink,'count');
1052: &dynmetaprint($r,$filelink,'course');
1053: &dynmetaprint($r,$filelink,'stdno');
1054: &dynmetaprint($r,$filelink,'avetries');
1055: &dynmetaprint($r,$filelink,'difficulty');
1056: &dynmetaprint($r,$filelink,'disc');
1057: &dynmetaprint($r,$filelink,'clear');
1058: &dynmetaprint($r,$filelink,'technical');
1059: &dynmetaprint($r,$filelink,'correct');
1060: &dynmetaprint($r,$filelink,'helpful');
1061: &dynmetaprint($r,$filelink,'depth');
1062: $r->print(" </td>\n");
1063:
1064: }
1065: if ($hash{'display_attrs_10'} == 1) {
1066: my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
1067: if($source eq 'open') {
1068: my $sourcelink = &Apache::lonsource::make_link($filelink,$listname);
1069: my $quotable_sourcelink = &Apache::loncommon::escape_single($sourcelink);
1070: &Apache::loncommon::inhibit_menu_check(\$quotable_sourcelink);
1071: $r->print('<td>'."<a href=\"javascript:openWindow('"
1072: .$quotable_sourcelink.
1073: "', 'previewsource', '700', '700', 'no', 'yes','yes');\"".
1074: " target=\"_self\">Yes</a> "."</td>\n");
1075: } else { #A cuddled else. :P
1076: $r->print("<td> </td>\n");
1077: }
1078: }
1079: if ($hash{'display_attrs_11'} == 1) {
1080: # links
1081: &dynmetaread($filelink);
1082: $r->print('<td>');
1083: &coursecontext($r,$filelink);
1084: &dynmetaprint($r,$filelink,'goto_list');
1085: &dynmetaprint($r,$filelink,'comefrom_list');
1086: &dynmetaprint($r,$filelink,'sequsage_list');
1087: &dynmetaprint($r,$filelink,'dependencies');
1088: &dynmetaprint($r,$filelink,'course_list');
1089: $r->print('</td>');
1090: }
1091: if ($hash{'display_attrs_7'} == 1) {
1092: # Show resource
1093: my $output=&showpreview($filelink);
1094: $r->print('<td> '.($output eq '' ? ' ':$output).
1095: " </td>\n");
1096: }
1097: $r->print("</tr>\n");
1098: }
1099:
1100: # -- display directory
1101: if ($fnptr == $dirptr) {
1102: my $curdir = $startdir.$filecom[0].'/';
1103: my $anchor = $curdir;
1104: $anchor =~ s/\W//g;
1105: $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
1106: &begin_form ($r,$curdir);
1107: my $indentm1 = $indent-1;
1108: if ($indentm1 < 11 and $indentm1 > 0) {
1109: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$indentm1,
1110: ".gif class='LC_icon' />\n");
1111: } else {
1112: my $ten = int($indentm1/10.);
1113: my $rem = $indentm1%10.0;
1114: my $count = 0;
1115: while ($count < $ten) {
1116: $r->print ("<img alt=\"\" src=",$iconpath
1117: ,"whitespace10.gif class='LC_icon' />\n");
1118: $count++;
1119: }
1120: $r->print ("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
1121: ".gif class='LC_icon' />\n") if $rem > 0;
1122: }
1123: $r->print ('<input type="hidden" name="acts" value="" />');
1124: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
1125: 'folder_pointer_'.$diropen.'.gif"');
1126: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
1127: "\n");
1128: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
1129: $r->print ('<a href="javascript:gothere(\''
1130: .$quotable_curdir.'\')">'
1131: .'<img alt="'.&mt('Open Folder').'"src="'.
1132: $iconpath.'folder_'.$diropen.'.gif" class="LC_icon" /></a>'.
1133: "\n");
1134: $r->print ("$listname</form></td>\n");
1135: # Attributes
1136: my $filelink = $startdir.$filecom[0].'/default';
1137:
1138: if ($hash{'display_attrs_0'} == 1) {
1139: my $title = &Apache::lonnet::gettitle($filelink);
1140: $r->print('<td> '.($title eq '' ? ' ' : $title).
1141: ' </td>'."\n");
1142: }
1143: $r->print('<td align=right> ',
1144: $filecom[8]," </td>\n")
1145: if $hash{'display_attrs_1'} == 1;
1146: $r->print('<td> '.
1147: (localtime($filecom[9]))." </td>\n")
1148: if $hash{'display_attrs_2'} == 1;
1149: $r->print('<td> '.
1150: (localtime($filecom[10]))." </td>\n")
1151: if $hash{'display_attrs_3'} == 1;
1152:
1153: if ($hash{'display_attrs_4'} == 1) {
1154: my $author = &Apache::lonnet::metadata($filelink,'author');
1155: $r->print('<td> '.($author eq '' ? ' ' : $author).
1156: " </td>\n");
1157: }
1158: if ($hash{'display_attrs_5'} == 1) {
1159: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1160: # $keywords = ' ' if (!$keywords);
1161: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1162: " </td>\n");
1163: }
1164: if ($hash{'display_attrs_6'} == 1) {
1165: my $lang = &Apache::lonnet::metadata($filelink,'language');
1166: $lang = &Apache::loncommon::languagedescription($lang);
1167: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1168: " </td>\n");
1169: }
1170: if ($hash{'display_attrs_8'} == 1) {
1171: $r->print('<td> </td>');
1172: }
1173: if ($hash{'display_attrs_10'} == 1) {
1174: $r->print('<td> </td>');
1175: }
1176: if ($hash{'display_attrs_11'} == 1) {
1177: $r->print('<td> </td>');
1178: }
1179: if ($hash{'display_attrs_7'} == 1) {
1180: $r->print('<td> </td>');
1181: }
1182: $r->print('</tr>');
1183: }
1184:
1185: }
1186:
1187: sub coursecontext {
1188: my ($r,$filelink)=@_;
1189: my $filesymb=&Apache::lonnet::symbread($filelink);
1190: if ($filesymb) {
1191: my ($map,$index,$resource)=&Apache::lonnet::decode_symb($filesymb);
1192: $r->print(&mt('Already in this course:<br />[_1] in folder/map [_2].<br />',
1193: &Apache::lonnet::gettitle($resource),
1194: &Apache::lonnet::gettitle($map)));
1195: }
1196: }
1197:
1198: sub showpreview {
1199: my ($filelink)=@_;
1200: if ($filelink=~m-^(/ext/|http://)-) {
1201: return &mt('External Resource, preview not enabled');
1202: }
1203: my ($curfext)=($filelink=~/\.(\w+)$/);
1204: my $output='';
1205: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
1206: if ($embstyle eq 'ssi') {
1207: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
1208: '.tmp';
1209: if ((!$env{'form.updatedisplay'}) &&
1210: (-e $cache)) {
1211: open(FH,$cache);
1212: $output=join("\n",<FH>);
1213: close(FH);
1214: } else {
1215: # In update display mode, remove old cache. This is done to retroactively
1216: # clean up course context renderings.
1217: if (-e $cache) {
1218: unlink($cache);
1219: }
1220: $output=&Apache::lonnet::ssi_body($filelink);
1221: # Is access denied? Don't render, don't store
1222: if ($output=~/LONCAPAACCESSCONTROLERRORSCREEN/s) {
1223: $output='';
1224: # Was this rendered in course content? Don't store
1225: } elsif (!&Apache::lonnet::symbread($filelink)) {
1226: open(FH,">$cache");
1227: print FH $output;
1228: close(FH);
1229: }
1230: }
1231: $output='<font size="-2">'.$output.'</font>';
1232: } elsif ($embstyle eq 'img') {
1233: $output='<img alt="'.&mt('Preview').'" src="'.$filelink.'" />';
1234: } elsif ($filelink=~m{^/res/($match_domain)/($match_username)/}) {
1235: $output='<img alt="'.&mt('Preview').'" src="http://'.
1236: &Apache::lonnet::hostname(&Apache::lonnet::homeserver($2,$1)).
1237: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1238: }
1239: return $output;
1240: }
1241:
1242: sub dynmetaprint {
1243: my ($r,$filelink,$item)=@_;
1244: if ($dynhash{$filelink}->{$item}) {
1245: $r->print("\n<br />".$fieldnames{$item}.': '.
1246: &Apache::lonmeta::prettyprint($item,
1247: $dynhash{$filelink}->{$item},
1248: (($env{'form.catalogmode'} ne 'import')?'preview':''),
1249: '',
1250: (($env{'form.catalogmode'} eq 'import')?'document.forms.fileattr':''),1));
1251: }
1252: }
1253:
1254: # ------------------- prints the beginning of a form for directory or file link
1255: sub begin_form {
1256: my ($r,$uri) = @_;
1257: my $anchor = $uri;
1258: $anchor =~ s/\W//g;
1259: $uri=&Apache::loncommon::escape_single($uri);
1260: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1261: '#'.$anchor.
1262: '" onSubmit="return rep_dirpath(\''.$dnum.'\''.
1263: ',document.forms.fileattr.acts.value)" '.
1264: 'enctype="application/x-www-form-urlencoded">'."\n");
1265: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'" />'.
1266: "\n");
1267: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n");
1268: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
1269: $dnum++;
1270: }
1271:
1272: # --------- settings whenever the user causes the indexer window to be launched
1273: sub start_fresh_session {
1274: my ($hash) = @_;
1275: delete $hash->{'form.catalogmode'};
1276: delete $hash->{'form.mode'};
1277: delete $hash->{'form.form'};
1278: delete $hash->{'form.element'};
1279: delete $hash->{'form.omit'};
1280: delete $hash->{'form.only'};
1281: foreach (keys %{$hash}) {
1282: delete $hash->{$_} if (/^(pre_|store)/);
1283: }
1284: }
1285:
1286: # ------------------------------------------------------------------- setvalues
1287: sub setvalues {
1288: # setvalues is used in registerurl to synchronize the database
1289: # hash and environment hashes
1290: my ($H1,$h1key,$H2,$h2key) =@_;
1291: #
1292: if (exists $H2->{$h2key}) {
1293: $H1->{$h1key} = $H2->{$h2key};
1294: } elsif (exists $H1->{$h1key}) {
1295: $H2->{$h2key} = $H1->{$h1key};
1296: }
1297: }
1298:
1299: 1;
1300:
1301: sub cleanup {
1302: if (tied(%hash)){
1303: &Apache::lonnet::logthis('Cleanup indexer: hash');
1304: }
1305: return OK;
1306: }
1307:
1308:
1309:
1310:
1311:
1312: =head1 NAME
1313:
1314: Apache::lonindexer - mod_perl module for cross server filesystem browsing
1315:
1316: =head1 SYNOPSIS
1317:
1318: Invoked by /etc/httpd/conf/srm.conf:
1319:
1320: <LocationMatch "^/res.*/$">
1321: SetHandler perl-script
1322: PerlHandler Apache::lonindexer
1323: </LocationMatch>
1324:
1325: =head1 INTRODUCTION
1326:
1327: This module enables a scheme of browsing across a cross server.
1328:
1329: This is part of the LearningOnline Network with CAPA project
1330: described at http://www.lon-capa.org.
1331:
1332: =head1 BEGIN SUBROUTINE
1333:
1334: This routine is only run once after compilation.
1335:
1336: =over 4
1337:
1338: =item *
1339:
1340: Initializes %language hash table.
1341:
1342: =back
1343:
1344: =head1 HANDLER SUBROUTINE
1345:
1346: This routine is called by Apache and mod_perl.
1347:
1348: =over 4
1349:
1350: =item *
1351:
1352: read in machine configuration variables
1353:
1354: =item *
1355:
1356: see if called from an interactive mode
1357:
1358: =item *
1359:
1360: refresh environment with user database values (in %hash)
1361:
1362: =item *
1363:
1364: define extra fields and buttons in case of special mode
1365:
1366: =item *
1367:
1368: set catalogmodefunctions to have extra needed javascript functionality
1369:
1370: =item *
1371:
1372: print header
1373:
1374: =item *
1375:
1376: evaluate actions from previous page (both cumulatively and chronologically)
1377:
1378: =item *
1379:
1380: output title
1381:
1382: =item *
1383:
1384: get state of file attributes to be showing
1385:
1386: =item *
1387:
1388: output state of file attributes to be showing
1389:
1390: =item *
1391:
1392: output starting row to the indexed file/directory hierarchy
1393:
1394: =item *
1395:
1396: read in what directories have previously been set to "open"
1397:
1398: =item *
1399:
1400: if not at top level, provide an uplink arrow
1401:
1402: =item *
1403:
1404: recursively go through all the directories and output as appropriate
1405:
1406: =item *
1407:
1408: information useful for group import
1409:
1410: =item *
1411:
1412: end the tables
1413:
1414: =item *
1415:
1416: end the output and return
1417:
1418: =back
1419:
1420: =head1 OTHER SUBROUTINES
1421:
1422: =over 4
1423:
1424: =item *
1425:
1426: scanDir - recursive scan of a directory
1427:
1428: =item *
1429:
1430: get_list - get complete matched list based on the uri (returns an array)
1431:
1432: =item *
1433:
1434: match_ext - filters out files based on extensions (returns an array)
1435:
1436: =item *
1437:
1438: display_line - displays one line in appropriate table format
1439:
1440: =item *
1441:
1442: begin_form - prints the beginning of a form for directory or file link
1443:
1444: =item *
1445:
1446: start_fresh_session - settings whenever the user causes the indexer window
1447: to be launched
1448:
1449: =back
1450:
1451: =cut
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