1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.171 2007/07/11 20:40:28 albertel 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 GDBM_File;
57: use LONCAPA qw(:match);
58:
59: # ---------------------------------------- variables used throughout the module
60: my %hash; # global user-specific gdbm file
61: my %dirs; # keys are directories, values are the open/close status
62: my %language; # has the reference information present in language.tab
63: my %dynhash; # hash of hashes for dynamic metadata
64: my %dynread; # hash of directories already read for dynamic metadata
65: my %fieldnames; # Metadata fieldnames
66: # ----- Values which are set by the handler subroutine and are accessible to
67: # ----- other methods.
68: my $extrafield; # default extra table cell
69: my $fnum; # file counter
70: my $dnum; # directory counter
71:
72: # ----- Used to include or exclude files with certain extensions.
73: my @Only = ();
74: my @Omit = ();
75:
76:
77:
78:
79: # ----------------------------- Handling routine called via Apache and mod_perl
80: sub handler {
81: my $r = shift;
82: my $c = $r->connection();
83: &Apache::loncommon::content_type($r,'text/html');
84: &Apache::loncommon::no_cache($r);
85: $r->send_http_header;
86: return OK if $r->header_only;
87: $fnum=0;
88: $dnum=0;
89:
90: # Deal with stupid global variables (is there a way around making
91: # these global to this package? It is just so wrong....)
92: undef (@Only);
93: undef (@Omit);
94: %fieldnames=&Apache::lonmeta::fieldnames();
95:
96: # ------------------------------------- read in machine configuration variables
97: my $iconpath= $r->dir_config('lonIconsURL') . "/";
98: my $domain = $r->dir_config('lonDefDomain');
99: my $role = $r->dir_config('lonRole');
100: my $loadlim = $r->dir_config('lonLoadLim');
101: my $servadm = $r->dir_config('lonAdmEMail');
102: my $sysadm = $r->dir_config('lonSysEMail');
103: my $lonhost = $r->dir_config('lonHostID');
104: my $tabdir = $r->dir_config('lonTabDir');
105:
106: my $fileclr='#ffffe6';
107: my $line;
108: my (@attrchk,@openpath);
109: my $uri=$r->uri;
110:
111: # -------------------------------------- see if called from an interactive mode
112: # Get the parameters from the query string
113: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
114: ['catalogmode','launch','acts','mode','form','element',
115: 'only','omit','titleelement']);
116: #-------------------------------------------------------------------
117: my $closebutton='';
118: my $groupimportbutton='';
119: my $colspan='';
120:
121: $extrafield='';
122: my $diropendb =
123: "/home/httpd/perl/tmp/$env{'user.domain'}_$env{'user.name'}_sel_res.db";
124: %hash = ();
125: {
126: my %dbfile;
127: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_WRITER(),0640)) {
128: if ($env{'form.launch'} eq '1') {
129: &start_fresh_session(\%dbfile);
130: }
131: while(my($key,$value)=each(%dbfile)) {
132: $hash{$key}=$value;
133: }
134: untie(%dbfile);
135: }
136: }
137: {
138: #Hijack lonindexer to verify a title and be close down.
139: if ($env{'form.launch'} eq '2') {
140: &Apache::loncommon::content_type($r,'text/html');
141: my $extra='';
142: if (defined($env{'form.titleelement'}) &&
143: $env{'form.titleelement'} ne '') {
144: my $verify_title = &Apache::lonnet::gettitle($env{'form.acts'});
145: # &Apache::lonnet::logthis("Hrrm $env{'form.acts'} -- $verify_title");
146: $verify_title=~s/'/\\'/g;
147: $extra='window.opener.document.forms["'.$env{'form.form'}.'"].elements["'.$env{'form.titleelement'}.'"].value=\''.$verify_title.'\';';
148: }
149: my $js = <<ENDSUBM;
150: <script type="text/javascript">
151: function load() {
152: window.opener.document.forms["$env{'form.form'}"]
153: .elements["$env{'form.element'}"]
154: .value='$env{'form.acts'}';
155: $extra
156: window.close();
157: }
158: </script>
159: ENDSUBM
160: $r->print(&Apache::loncommon::start_page(undef,$js,
161: {'only_body' =>1,
162: 'add_entries' =>
163: {'onload' => "load();"},}
164: ).
165: &Apache::loncommon::end_page());
166: return OK;
167: }
168:
169: # -------------------- refresh environment with user database values (in %hash)
170: &setvalues(\%hash,'form.catalogmode',\%env,'form.catalogmode' );
171:
172: # --------------------- define extra fields and buttons in case of special mode
173: if ($env{'form.catalogmode'} eq 'interactive') {
174: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
175: '<img alt="" src="'.$iconpath.'whitespace1.gif"'.
176: ' class="LC_icon" /></td>';
177: $colspan=" colspan='2' ";
178: my $cl=&mt('Close');
179: $closebutton=<<END;
180: <input type="button" name="close" value='$cl' onClick="self.close()" />
181: END
182: }
183: elsif ($env{'form.catalogmode'} eq 'import') {
184: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
185: '<img alt="" src="'.$iconpath.'whitespace1.gif"'.
186: ' class="LC_icon" /></td>';
187: $colspan=" colspan='2' ";
188: my $cl=&mt('Close');
189: my $gi=&mt('Import');
190: $closebutton=<<END;
191: <input type="button" name="close" value='$cl' onClick="self.close()" />
192: END
193: $groupimportbutton=<<END;
194: <input type="button" name="groupimport" value='$gi'
195: onClick="javascript:select_group()" />
196: END
197: }
198: # Additions made by Matthew to make the browser a little easier to deal
199: # with in the future.
200: #
201: # $mode (at this time) indicates if we are in edit mode.
202: # $form is the name of the form that the URL is placed when the
203: # selection is made.
204: # $element is the name of the element in $formname which receives
205: # the URL.
206: #&Apache::lonxml::debug('Checking mode, form, element');
207: &setvalues(\%hash,'form.mode' ,\%env,'form.mode' );
208: &setvalues(\%hash,'form.form' ,\%env,'form.form' );
209: &setvalues(\%hash,'form.element' ,\%env,'form.element');
210: &setvalues(\%hash,'form.titleelement',\%env,'form.titleelement');
211: &setvalues(\%hash,'form.only' ,\%env,'form.only' );
212: &setvalues(\%hash,'form.omit' ,\%env,'form.omit' );
213:
214: # Deal with 'omit' and 'only'
215: if (exists $env{'form.omit'}) {
216: @Omit = split(',',$env{'form.omit'});
217: }
218: if (exists $env{'form.only'}) {
219: @Only = split(',',$env{'form.only'});
220: }
221:
222: my $mode = $env{'form.mode'};
223: my ($form,$element,$titleelement);
224: if ($mode eq 'edit' || $mode eq 'parmset') {
225: $form = $env{'form.form'};
226: $element = $env{'form.element'};
227: $titleelement = $env{'form.titleelement'};
228: }
229: #&Apache::lonxml::debug("mode=$mode form=$form element=$element titleelement=$titleelement");
230: # ------ set catalogmodefunctions to have extra needed javascript functionality
231: my $catalogmodefunctions='';
232: if ($env{'form.catalogmode'} eq 'interactive' or
233: $env{'form.catalogmode'} eq 'import') {
234: # The if statement below sets us up to use the old version
235: # by default (ie. if $mode is undefined). This is the easy
236: # way out. Hopefully in the future I'll find a way to get
237: # the calls dealt with in a more comprehensive manner.
238:
239: #
240: # There is now also mode "simple", which is for the simple version of the rat
241: #
242: #
243: if (!defined($mode) || ($mode ne 'edit' && $mode ne 'parmset')) {
244: my $location = "/adm/groupsort?&inhibitmenu=yes&catalogmode=import&";
245: $location .= "mode=".$mode."&";
246: $location .= "acts=";
247: $catalogmodefunctions=<<"END";
248: function select_data(url) {
249: changeURL(url);
250: self.close();
251: }
252: function select_group() {
253: window.location="$location"+document.forms.fileattr.acts.value;
254: }
255: function changeURL(val) {
256: if (opener.inf) {
257: if (opener.inf.document.forms.resinfo.elements.u) {
258: opener.inf.document.forms.resinfo.elements.u.value=val;
259: }
260: }
261: }
262: END
263: } elsif ($mode eq 'edit') { # we are in 'edit' mode
264: my $location = "/adm/groupsort?catalogmode=interactive&";
265: $location .= "form=$form&element=$element&mode=edit&acts=";
266: $catalogmodefunctions=<<END;
267: // mode = $mode
268: function select_data(url) {
269: var location = "/res/?launch=2&form=$form&element=$element&titleelement=$titleelement&acts=" + url;
270: window.location=location;
271: }
272: function select_group() {
273: window.location="$location"+document.forms.fileattr.acts.value;
274: }
275:
276: function changeURL(val) {
277: if (window.opener.document) {
278: window.opener.document.forms["$form"].elements["$element"].value=val;
279: } else {
280: alert("The file you selected is: "+val);
281: }
282: }
283: END
284: if (!$titleelement) {
285: $catalogmodefunctions.='function changeTitle(val) {}';
286: } else {
287: $catalogmodefunctions.=<<END;
288: function changeTitle(val) {
289: if (window.opener.document) {
290: window.opener.document.forms["$form"].elements["$titleelement"].value=val;
291: } else {
292: alert("The title of the file you selected is: "+val);
293: }
294: }
295: END
296: }
297: } elsif ($mode eq 'parmset') {
298: my $location = "/adm/groupsort?catalogmode=interactive&";
299: $location .= "form=$form&element=$element&mode=parmset&acts=";
300: $catalogmodefunctions=<<END;
301: // mode = $mode
302: function select_data(url) {
303: changeURL(url);
304: self.close();
305: }
306:
307: function select_group() {
308: window.location="$location"+document.forms.fileattr.acts.value;
309: }
310:
311: function changeURL(val) {
312: if (window.opener.document) {
313: var elementname = "$element"+"_value";
314: var checkboxname = "$element"+"_setparmval";
315: window.opener.document.forms["$form"].elements[elementname].value=val;
316: window.opener.document.forms["$form"].elements[checkboxname].checked=true;
317: } else {
318: alert("The file you selected is: "+val);
319: }
320: }
321:
322: END
323: }
324: }
325: $catalogmodefunctions.=<<END;
326: var acts='';
327: function rep_dirpath(suffix,val) {
328: eval("document.forms.dirpath"+suffix+".acts.value=val");
329: }
330: END
331: if ($env{'form.catalogmode'} eq 'import') {
332: $catalogmodefunctions.=<<END;
333: function queue(val) {
334: if (eval("document.forms."+val+".filelink.checked")) {
335: var l=val.length;
336: var v=val.substring(4,l);
337: document.forms.fileattr.acts.value+='1a'+v+'b';
338: }
339: else {
340: var l=val.length;
341: var v=val.substring(4,l);
342: document.forms.fileattr.acts.value+='0a'+v+'b';
343: }
344: }
345: END
346: }
347:
348: my $inhibit_menu = "+'&".&Apache::loncommon::inhibit_menu_check()."'";
349: # ---------------------------------------------------------------- Print Header
350:
351: my $js = <<"ENDHEADER";
352: <script type="text/javascript">
353: $catalogmodefunctions
354: function checkAll() {
355: var numForms = document.forms.length;
356: for (i=0;i<numForms;i++) {
357: var numElements = document.forms[i].elements.length;
358: for (j=0;j<numElements;j++){
359: var fieldName = document.forms[i].elements[j].name;
360: if (fieldName == 'filelink') {
361: document.forms[i].elements[j].checked = true;
362: queue(document.forms[i].name);
363: }
364: }
365: }
366: }
367: function uncheckAll() {
368: var numForms = document.forms.length;
369: for (i=0;i<numForms;i++) {
370: var numElements = document.forms[i].elements.length;
371: for (j=0;j<numElements;j++){
372: var fieldName = document.forms[i].elements[j].name;
373: if (fieldName == 'filelink') {
374: document.forms[i].elements[j].checked = false;
375: queue(document.forms[i].name);
376: }
377: }
378: }
379: }
380: function openWindow(url, wdwName, w, h, toolbar,scrollbar,locationbar) {
381: var xpos = (screen.width-w)/2;
382: xpos = (xpos < 0) ? '0' : xpos;
383: var ypos = (screen.height-h)/2-30;
384: ypos = (ypos < 0) ? '0' : ypos;
385: var options = "width=" + w + ",height=" + h + ",screenx="+xpos+",screeny="+ypos+",";
386: options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
387: options += "menubar=no,toolbar="+toolbar+",location="+locationbar+",directories=no";
388: var newWin = window.open(url, wdwName, options);
389: newWin.focus();
390: }
391: function gothere(val) {
392: window.location=val+'?acts='+document.forms.fileattr.acts.value$inhibit_menu;
393: }
394: </script>
395: ENDHEADER
396:
397: my ($headerdom)=($uri=~m{^/res/($match_domain)/});
398: $r->print(&Apache::loncommon::start_page('Browse Resources',$js,
399: {'domain' => $headerdom,}));
400: # - Evaluate actions from previous page (both cumulatively and chronologically)
401: if ($env{'form.catalogmode'} eq 'import') {
402: my $acts=$env{'form.acts'};
403: my @Acts=split(/b/,$acts);
404: my %ahash;
405: my %achash;
406: my $ac=0;
407: # some initial hashes for working with data
408: foreach (@Acts) {
409: my ($state,$ref)=split(/a/);
410: $ahash{$ref}=$state;
411: $achash{$ref}=$ac;
412: $ac++;
413: }
414: # sorting through the actions and changing the global database hash
415: foreach my $key (sort {$achash{$a}<=>$achash{$b}} (keys %ahash)) {
416: if ($ahash{$key} eq '1') {
417: $hash{'store_'.$hash{'pre_'.$key.'_link'}}=
418: $hash{'pre_'.$key.'_title'};
419: $hash{'storectr_'.$hash{'pre_'.$key.'_link'}}=
420: $hash{'storectr'}+0;
421: $hash{'storectr'}++;
422: }
423: if ($ahash{$key} eq '0') {
424: if ($hash{'store_'.$hash{'pre_'.$key.'_link'}}) {
425: delete $hash{'store_'.$hash{'pre_'.$key.'_link'}};
426: }
427: }
428: }
429: # deleting the previously cached listing
430: foreach (keys %hash) {
431: if ($_ =~ /^pre_/ && $_ =~/link$/) {
432: my $key = $_;
433: $key =~ s/^pre_//;
434: $key =~ s/_[^_]*$//;
435: delete $hash{'pre_'.$key.'_title'};
436: delete $hash{'pre_'.$key.'_link'};
437: }
438: }
439: }
440:
441: # ---------------------------------- get state of file attributes to be showing
442: if ($env{'form.attrs'}) {
443: for (my $i=0; $i<=11; $i++) {
444: delete $hash{'display_attrs_'.$i};
445: if ($env{'form.attr'.$i} == 1) {
446: $attrchk[$i] = 'checked';
447: $hash{'display_attrs_'.$i} = 1;
448: }
449: }
450: } else {
451: for (my $i=0; $i<=11; $i++) {
452: $attrchk[$i] = 'checked' if $hash{'display_attrs_'.$i} == 1;
453: }
454: }
455:
456: # ------------------------------- output state of file attributes to be showing
457: # All versions has to the last item
458: # since it does not take an extra col
459: my %lt=&Apache::lonlocal::texthash(
460: 'ti' => 'Title',
461: 'si' => 'Size',
462: 'la' => 'Last access',
463: 'lm' => 'Last modified',
464: 'st' => 'Statistics',
465: 'au' => 'Author',
466: 'kw' => 'Keywords',
467: 'ln' => 'Language',
468: 'sa' => 'Source Available',
469: 'sr' => 'Show resource',
470: 'li' => 'Linked/Related Resources',
471: 'av' => 'All versions',
472: 'ud' => 'Update Display'
473: );
474: $r->print(<<END);
475: <form method="post" name="fileattr" action="$uri"
476: enctype="application/x-www-form-urlencoded">
477: <label><input type="checkbox" name="attr9" value="1" $attrchk[9] onClick="this.form.submit();" /> $lt{'av'}</label>
478: <table border="0">
479: <tr>
480: <td><label><input type="checkbox" name="attr0" value="1" $attrchk[0] onClick="this.form.submit();" /> $lt{'ti'}</label></td>
481: <td><label><input type="checkbox" name="attr4" value="1" $attrchk[4] onClick="this.form.submit();" /> $lt{'au'}</label></td>
482: <td><label><input type="checkbox" name="attr5" value="1" $attrchk[5] onClick="this.form.submit();" /> $lt{'kw'}</label></td>
483: <td><label><input type="checkbox" name="attr6" value="1" $attrchk[6] onClick="this.form.submit();" /> $lt{'ln'}</label></td>
484: </tr>
485: <tr>
486: <td><label><input type="checkbox" name="attr1" value="1" $attrchk[1] onClick="this.form.submit();" /> $lt{'si'}</label></td>
487: <td><label><input type="checkbox" name="attr2" value="1" $attrchk[2] onClick="this.form.submit();" /> $lt{'la'}</label></td>
488: <td><label><input type="checkbox" name="attr3" value="1" $attrchk[3] onClick="this.form.submit();" /> $lt{'lm'}</label></td>
489: <td><label><input type="checkbox" name="attr10" value="1" $attrchk[10] onClick="this.form.submit();" /> $lt{'sa'}</label></td>
490: </tr>
491: <tr>
492: <td><label><input type="checkbox" name="attr8" value="1" $attrchk[8] onClick="this.form.submit();" /> $lt{'st'}</label></td>
493: <td><label><input type="checkbox" name="attr11" value="1" $attrchk[11] onClick="this.form.submit();" /> $lt{'li'}</label></td>
494: <td><label><input type="checkbox" name="attr7" value="1" $attrchk[7] onClick="this.form.submit();" /> $lt{'sr'}</label></td>
495: <td> </td>
496: </tr>
497: </table>
498: <input type="hidden" name="attrs" value="1" />
499: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
500: <input type="hidden" name="acts" value="" />
501: $closebutton $groupimportbutton
502: END
503: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
504: # -------------- Filter out sequence containment in crumbs and "recent folders"
505: my $storeuri=$uri;
506: $storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
507: $storeuri=~s/\/+/\//g;
508: # ---------------------------------------------------------------- Bread crumbs
509: $r->print(&Apache::lonhtmlcommon::crumbs($storeuri,'','',
510: (($env{'form.catalogmode'} eq 'import')?
511: 'document.forms.fileattr':'')).
512: &Apache::lonhtmlcommon::select_recent('residx','resrecent',
513: '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();'));
514: # -------------------------------------------------------- Resource Home Button
515: my $reshome=$env{'course.'.$env{'request.course.id'}.'.reshome'};
516: if ($reshome) {
517: $r->print("<font size='+2'><a href='");
518: if ($env{'form.catalogmode'} eq 'import') {
519: $r->print('javascript:document.forms.fileattr.action="'.&Apache::loncommon::inhibit_menu_check($reshome).'";document.forms.fileattr.submit();');
520: } else {
521: $r->print($reshome);
522: }
523: $r->print("'>".&mt('Home').'</a></font>');
524: }
525: $r->print('</form>');
526: # ------------------------------------------------------ Remember where we were
527: &Apache::loncommon::storeresurl($storeuri);
528: &Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
529: # -------------------------------------------------- Check All and Uncheck all
530: if ($env{'form.catalogmode'} eq 'import') {
531: $r->print('<br /><input type="button" value="'.&mt("Check All").'" id="checkallbutton" onClick="javascript:checkAll()" />');
532: $r->print('<input type="button" value="'.&mt("Uncheck All").'" id="uncheckallbutton" onClick="javascript:uncheckAll()" />');
533: }
534: # ----------------- output starting row to the indexed file/directory hierarchy
535: my $titleclr="#ddffff";
536: #$r->print(&initdebug());
537: #$r->print(&writedebug("Omit:@Omit")) if (@Omit);
538: #$r->print(&writedebug("Only:@Only")) if (@Only);
539: $r->print('<table width="100%" border="0"><tr><td bgcolor="#777777">'."\n");
540: $r->print('<table width="100%" border="0"><tr bgcolor="'.$titleclr.'">'."\n");
541: $r->print("<td $colspan><b>".&mt('Name')."</b></td>\n");
542: $r->print("<td><b>".&mt('Title')."</b></td>\n")
543: if ($hash{'display_attrs_0'} == 1);
544: $r->print("<td align=right><b>".&mt("Size")." (".&mt("bytes").") ".
545: "</b></td>\n") if ($hash{'display_attrs_1'} == 1);
546: $r->print("<td><b>".&mt("Last accessed")."</b></td>\n")
547: if ($hash{'display_attrs_2'} == 1);
548: $r->print("<td><b>".&mt("Last modified")."</b></td>\n")
549: if ($hash{'display_attrs_3'} == 1);
550: $r->print("<td><b>".&mt("Author(s)")."</b></td>\n")
551: if ($hash{'display_attrs_4'} == 1);
552: $r->print("<td><b>".&mt("Keywords")."</b></td>\n")
553: if ($hash{'display_attrs_5'} == 1);
554: $r->print("<td><b>".&mt("Language")."</b></td>\n")
555: if ($hash{'display_attrs_6'} == 1);
556: $r->print("<td><b>".&mt("Usage Statistics")." <br />(".
557: &mt("Courses/Network Hits").")</b> ".&mt('updated periodically')."</td>\n")
558: if ($hash{'display_attrs_8'} == 1);
559: $r->print("<td><b>".&mt("Source Available")."</b></td>\n")
560: if ($hash{'display_attrs_10'} == 1);
561: $r->print("<td><b>".&mt("Linked/Related Resources")."</b></td>\n")
562: if ($hash{'display_attrs_11'} == 1);
563: $r->print("<td><b>".&mt("Resource")."</b></td>\n")
564: if ($hash{'display_attrs_7'} == 1);
565: $r->print('</tr>');
566:
567: # ----------------- read in what directories have previously been set to "open"
568: foreach (keys %hash) {
569: if ($_ =~ /^diropen_status_/) {
570: my $key = $_;
571: $key =~ s/^diropen_status_//;
572: $dirs{$key} = $hash{$_};
573: }
574: }
575:
576: if ($env{'form.openuri'}) { # take care of review and refresh options
577: my $uri=$env{'form.openuri'};
578: if (exists($hash{'diropen_status_'.$uri})) {
579: my $cursta = $hash{'diropen_status_'.$uri};
580: $dirs{$uri} = 'open';
581: $hash{'diropen_status_'.$uri} = 'open';
582: if ($cursta eq 'open') {
583: $dirs{$uri} = 'closed';
584: $hash{'diropen_status_'.$uri} = 'closed';
585: }
586: } else {
587: $hash{'diropen_status_'.$uri} = 'open';
588: $dirs{$uri} = 'open';
589: }
590: }
591:
592: my $toplevel;
593: my $indent = 0;
594: $uri = $uri.'/' if $uri !~ /.*\/$/;
595:
596: if ($env{'form.dirPointer'} ne 'on') {
597: $hash{'top.level'} = $uri;
598: $toplevel = $uri;
599: } else {
600: $toplevel = $hash{'top.level'};
601: }
602:
603: # -------------------------------- if not at top level, provide an uplink arrow
604: if ($toplevel ne '/res/'){
605: my (@uri_com) = split(/\//,$uri);
606: pop @uri_com;
607: my $upone = join('/',@uri_com);
608: my @list = qw (0);
609: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
610: $indent = 1;
611: }
612:
613: # -------- recursively go through all the directories and output as appropriate
614: &scanDir ($r,$toplevel,$indent,\%hash);
615:
616:
617: # -------------------------------------------------------------- end the tables
618: $r->print('</table>');
619: # ---------------------------- embed hidden information useful for group import
620: $r->print("<form name='fnum' action=''>");
621: $r->print("<input type='hidden' name='fnum' value='$fnum' /></form>");
622: # -------------------------------------------------------------- end the tables
623: $r->print('</td></tr></table>');
624:
625: # --------------------------------------------------- end the output and return
626: $r->print(&Apache::loncommon::end_page()."\n");
627: }
628: if(! $c->aborted()) {
629: # write back into the temporary file
630: my %dbfile;
631: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
632: while (my($key,$value) = each(%hash)) {
633: $dbfile{$key}=$value;
634: }
635: untie(%dbfile);
636: }
637: }
638:
639: return OK;
640: }
641:
642: # ----------------------------------------------- recursive scan of a directory
643: sub scanDir {
644: my ($r,$startdir,$indent,$hashref)=@_;
645: my $c = $r->connection();
646: my ($compuri,$curdir);
647: my $dirptr=16384;
648: my $obs;
649: $indent++;
650: my %dupdirs = %dirs;
651: my @list=&get_list($r,$startdir);
652: foreach my $line (@list) {
653: return if ($c->aborted());
654: #This is a kludge, sorry aboot this
655: my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
656: next if($strip =~ /.*\.meta$/ | $obs eq '1');
657: my (@fileparts) = split(/\./,$strip);
658: if ($hash{'display_attrs_9'} != 1) {
659: # if not all versions to be shown
660: if (scalar(@fileparts) >= 3) {
661: my $fext = pop @fileparts;
662: my $ov = pop @fileparts;
663: my $fname = join ('.',@fileparts,$fext);
664: next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
665: }
666: }
667:
668: if ($dom eq 'domain') {
669: # dom list has full path /res/<domain name>/ already
670: $curdir='';
671: $compuri = (split(/\&/,$line))[0];
672: } else {
673: # user, dir & file have name only, i.e., w/o path
674: $compuri = join('',$startdir,$strip,'/');
675: $curdir = $startdir;
676: }
677: my $diropen = 'closed';
678: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
679: while (my ($key,$val)= each %dupdirs) {
680: if ($key eq $compuri and $val eq "open") {
681: $diropen = "opened";
682: delete($dupdirs{$key});
683: delete($dirs{$key});
684: }
685: }
686: }
687: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
688: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
689: }
690: $indent--;
691: }
692:
693: # --------------- get complete matched list based on the uri (returns an array)
694: sub get_list {
695: my ($r,$uri)=@_;
696: my @list=();
697: (my $luri = $uri) =~ s/\//_/g;
698: if ($env{'form.updatedisplay'}) {
699: foreach (keys %hash) {
700: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
701: delete $hash{$_} if ($_ =~ /^dirlist_timestamp_files_/);
702: }
703: }
704:
705: if (defined($hash{'dirlist_files_'.$luri}) &&
706: $hash{'dirlist_timestamp_files_'.$luri}+600 > (time)) {
707: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
708: } elsif ($uri=~/\.(page|sequence)\/$/) {
709: # is a page or a sequence
710: $uri=~s/\/$//;
711: $uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
712: $uri=~s/\/+/\//g;
713: foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
714: my @ratpart=split(/\:/,$_);
715: push(@list,&LONCAPA::map::qtescape($ratpart[1]));
716: }
717: $hash{'dirlist_files_'.$luri} = join("\n",@list);
718: } else {
719: # is really a directory
720: @list = &Apache::lonnet::dirlist($uri);
721: $hash{'dirlist_files_'.$luri} = join("\n",@list);
722: $hash{'dirlist_timestamp_files_'.$luri} = time;
723: }
724: return @list=&match_ext($r,@list);
725: }
726:
727: sub dynmetaread {
728: my $uri=shift;
729: if (($hash{'display_attrs_8'}==1) || ($hash{'display_attrs_11'}==1)) {
730: # We don't want the filename
731: $uri=~s/\/[^\/]+$//;
732: # Did we already see this?
733: my $builddir=$uri;
734: while ($builddir) {
735: if ($dynread{$builddir}) {
736: return 0;
737: }
738: $builddir=~s/\/[^\/]+$//;
739: }
740: # Actually get the data
741: %dynhash=
742: (%dynhash,&Apache::lonmeta::get_dynamic_metadata_from_sql($uri.'/'));
743: # Remember that we got it
744: $dynread{$uri}=1;
745: }
746: }
747:
748: sub initdebug {
749: my $start_page=
750: &Apache::loncommon::start_page('Debug',undef,
751: {'only_body' => 1,});
752: $start_page =~ s/\n/ /g;
753: return <<ENDJS;
754: <script type="text/javascript">
755: var debugging = true;
756: if (debugging) {
757: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
758: }
759:
760: function output(text) {
761: if (debugging) {
762: debuggingWindow.document.writeln(text);
763: }
764: }
765: output('$start_page<pre>');
766: </script>
767: ENDJS
768: }
769:
770: sub writedebug {
771: my ($text) = @_;
772: return "<script type=\"text/javascript\">output('$text');</script>";
773: }
774:
775: # -------------------- filters out files based on extensions (returns an array)
776: sub match_ext {
777: my ($r,@packlist)=@_;
778: my @trimlist;
779: my $nextline;
780: my @fileext;
781: my $dirptr=16384;
782:
783: foreach my $line (@packlist) {
784: chomp $line;
785: $line =~ s/^\/home\/httpd\/html//;
786: my @unpackline = split (/\&/,$line);
787: next if ($unpackline[0] eq '.');
788: next if ($unpackline[0] eq '..');
789: my @filecom = split (/\./,$unpackline[0]);
790: my $fext = pop(@filecom);
791: my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
792: if ($fnptr == 0 and $unpackline[3] ne "") {
793: my $embstyle = &Apache::loncommon::fileembstyle($fext);
794: push @trimlist,$line if (defined($embstyle) &&
795: ($embstyle ne 'hdn' or $fext eq 'meta'));
796: } else {
797: push @trimlist,$line;
798: }
799: }
800: @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
801: return @trimlist;
802: }
803:
804: # ------------------------------- displays one line in appropriate table format
805: sub display_line {
806: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
807: my (@pathfn, $fndir);
808: # there could be relative paths (files actually belonging into this directory)
809: # or absolute paths (for example, from sequences)
810: my $absolute;
811: my $pathprefix;
812: if ($line=~m|^/res/| && $startdir ne '') {
813: $absolute=1;
814: $pathprefix='';
815: } else {
816: $absolute=0;
817: $pathprefix=$startdir;
818: }
819: my $dirptr=16384;
820: my $fileclr="#ffffe6";
821: my $iconpath= $r->dir_config('lonIconsURL') . '/';
822:
823: my @filecom = split (/\&/,$line);
824: my @pathcom = split (/\//,$filecom[0]);
825: my $listname = $pathcom[scalar(@pathcom)-1];
826: my $fnptr = $filecom[3]&$dirptr;
827: my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
828: $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
829:
830: my $tabtag='</td>';
831: my $i=0;
832: while ($i<=11) {
833: $tabtag=join('',$tabtag,"<td> </td>")
834: if ($i != 9 &&
835: $hash{'display_attrs_'.$i} == 1);
836: $i++;
837: }
838: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
839:
840: # display uplink arrow
841: if ($filecom[1] eq 'viewOneUp') {
842: my $updir=$startdir;
843: # -------------- Filter out sequence containment in crumbs and "recent folders"
844: $updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
845: $updir=~s/\/+/\//g;
846:
847: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
848: $r->print("<td>\n");
849: $r->print ('<form method="post" name="dirpathUP" action="'.$updir.
850: '/" '.
851: 'onSubmit="return rep_dirpath(\'UP\','.
852: 'document.forms.fileattr.acts.value)" '.
853: 'enctype="application/x-www-form-urlencoded"'.
854: '>'."\n");
855: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
856: $r->print ('<input type=hidden name=openuri value="'.
857: $startdir.'" />'."\n");
858: $r->print ('<input type="hidden" name="acts" value="" />'."\n");
859: $r->print ('<input src="'.$iconpath.'arrow_up.gif"');
860: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
861: "\n");
862: $r->print(&mt("Up")."</form>$tabtag</tr>\n");
863: return OK;
864: }
865: # Do we have permission to look at this?
866:
867: if($filecom[15] ne '1') { return OK if (!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])); }
868:
869: # make absolute links appear on different background
870: if ($absolute) { $fileclr='#ccdd99'; }
871:
872: # display domain
873: if ($filecom[1] eq 'domain') {
874: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n")
875: if ($env{'form.dirPointer'} eq "on");
876: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
877: $r->print("<td>");
878: &begin_form ($r,$filecom[0]);
879: my $anchor = $filecom[0];
880: $anchor =~ s/\W//g;
881: $r->print ('<a name="'.$anchor.'"></a>');
882: $r->print ('<input type="hidden" name="acts" value="" />');
883: $r->print ('<input src="'.$iconpath.'folder_pointer_'.
884: $diropen.'.gif"');
885: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
886: "\n");
887: my $quotable_filecom = &Apache::loncommon::escape_single($filecom[0]);
888: $r->print ('<a href="javascript:gothere(\''.$quotable_filecom.
889: '\')"><img alt="" src="'.$iconpath.'server.gif"');
890: $r->print (' class="LC_icon" /></a>'."\n");
891: $r->print (&mt("Domain")." - $listname ");
892: if (&Apache::lonnet::domain($listname,'description')) {
893: $r->print("(".&Apache::lonnet::domain($listname,'description').
894: ")");
895: }
896: $r->print ("</form>$tabtag</tr>\n");
897: return OK;
898:
899: # display user directory
900: }
901: if ($filecom[1] eq 'user') {
902: # $r->print("<tr valign=$valign bgcolor=\"$fileclr\">$extrafield");
903: my $curdir = $startdir.$filecom[0].'/';
904: my $anchor = $curdir;
905: $anchor =~ s/\W//g;
906: $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
907: &begin_form ($r,$curdir);
908: $r->print ('<a name="'.$anchor.'"></a><img alt="" src="'.$iconpath.
909: 'whitespace1.gif" class="LC_icon" />'."\n");
910: $r->print ('<input type="hidden" name="acts" value="" />');
911: $r->print ('<input src="'.$iconpath.'folder_pointer_'.$diropen.
912: '.gif"');
913: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
914: "\n");
915: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
916: $r->print ('<a href="javascript:gothere(\''.$quotable_curdir
917: .'\')"><img alt="'.$msg.'" src="'.
918: $iconpath.'quill.gif" class="LC_indexer_icon" /></a>');
919: my $domain=(split(m|/|,$startdir))[2];
920: my $plainname=&Apache::loncommon::plainname($listname,$domain);
921: $r->print ($listname);
922: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
923: $r->print ('</form>'.$tabtag.'</tr>'."\n");
924: return OK;
925: }
926:
927: # display file
928: if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
929: my $title;
930: my $filelink = $pathprefix.$filecom[0];
931: if ($hash{'display_attrs_0'} == 1) {
932: $title = &Apache::lonnet::gettitle($filelink);
933: }
934: my @file_ext = split (/\./,$listname);
935: my $curfext = $file_ext[-1];
936: if (@Omit) {
937: foreach (@Omit) { return OK if ($curfext eq $_); }
938: }
939: if (@Only) {
940: my $skip = 1;
941: foreach (@Only) { $skip = 0 if ($curfext eq $_); }
942: return OK if ($skip > 0);
943: }
944: # Set the icon for the file
945: my $iconname = &Apache::loncommon::icon($listname);
946: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\"><td nowrap='nowrap' valign='top'>");
947:
948: if ($env{'form.catalogmode'} eq 'interactive') {
949: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
950: $r->print("<a href=\"javascript:select_data(\'",
951: $quotable_filelink,"')\">");
952: $r->print("<img alt=\"\" src='",$iconpath,"select.gif' class='LC_icon' /></a>".
953: "\n");
954: $r->print("</td><td nowrap='nowrap' valign='top'>");
955: } elsif ($env{'form.catalogmode'} eq 'import') {
956: $r->print("<form name='form$fnum' action=''>\n");
957: $r->print("<input type='checkbox' name='filelink"."' ".
958: "value='$filelink' onClick='".
959: "javascript:queue(\"form$fnum\")' ");
960: if ($hash{'store_'.$filelink}) {
961: $r->print("checked");
962: }
963: $r->print(" />\n");
964: $r->print("</form></td><td nowrap='nowrap' valign='top'>");
965: $hash{"pre_${fnum}_link"}=$filelink;
966: $hash{"pre_${fnum}_title"}=$title;
967: if (!$hash{"pre_${fnum}_title"}) {
968: $hash{"pre_${fnum}_title"} = 'Not_retrieved';
969: }
970: $fnum++;
971: }
972: # Form to open or close sequences
973: if ($filelink=~/\.(page|sequence)$/) {
974: my $curdir = $startdir.$filecom[0].'/';
975: &begin_form($r,$curdir);
976: $indent--;
977: }
978: # General indentation
979: if ($indent > 0 and $indent < 11) {
980: $r->print("<img alt=\"\" src='",$iconpath,"whitespace",$indent,
981: ".gif' class='LC_icon' />\n");
982: } elsif ($indent >0) {
983: my $ten = int($indent/10.);
984: my $rem = $indent%10.0;
985: my $count = 0;
986: while ($count < $ten) {
987: $r->print("<img alt=\"\" src=".$iconpath.
988: "whitespace10.gif class='LC_icon' />\n");
989: $count++;
990: }
991: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
992: ".gif class='LC_icon' />\n") if $rem > 0;
993: }
994: # Sequence open/close icon
995: if ($filelink=~/\.(page|sequence)$/) {
996: my $curdir = $startdir.$filecom[0].'/';
997: my $anchor = $curdir;
998: $anchor =~ s/\W//g;
999: $r->print ('<input type="hidden" name="acts" value="" />');
1000: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
1001: 'folder_pointer_'.$diropen.'.gif"');
1002: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
1003: "\n");
1004: }
1005: # Filetype icons
1006: $r->print("<img alt=\"\" src='$iconname' class='LC_icon' />\n");
1007: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
1008:
1009: $r->print (" <a href=\"javascript:openWindow('".$quotable_filelink.
1010: "?inhibitmenu=yes','previewfile','450','500','no','yes','yes');\"".
1011: " target=\"_self\">$listname</a> ");
1012: $quotable_filelink = &Apache::loncommon::escape_single($filelink.'.meta');
1013: &Apache::loncommon::inhibit_menu_check(\$quotable_filelink);
1014: $r->print (" (<a href=\"javascript:openWindow('".$quotable_filelink.
1015: "?inhibitmenu=yes','metadatafile','500','550','no','yes','no');\" ".
1016: " target=\"_self\">metadata</a>) ");
1017: # Close form to open/close sequence
1018: if ($filelink=~/\.(page|sequence)$/) {
1019: $r->print('</form>');
1020: }
1021: $r->print("</td>\n");
1022: if ($hash{'display_attrs_0'} == 1) {
1023: $r->print('<td> '.($title eq '' ? ' ' : $title).
1024: ' </td>'."\n");
1025: }
1026: $r->print('<td align=right> ',
1027: $filecom[8]," </td>\n")
1028: if $hash{'display_attrs_1'} == 1;
1029: $r->print('<td> '.
1030: (localtime($filecom[9]))." </td>\n")
1031: if $hash{'display_attrs_2'} == 1;
1032: $r->print('<td> '.
1033: (localtime($filecom[10]))." </td>\n")
1034: if $hash{'display_attrs_3'} == 1;
1035:
1036: if ($hash{'display_attrs_4'} == 1) {
1037: my $author = &Apache::lonnet::metadata($filelink,'author');
1038: $r->print('<td> '.($author eq '' ? ' ' : $author).
1039: " </td>\n");
1040: }
1041: if ($hash{'display_attrs_5'} == 1) {
1042: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1043: # $keywords = ' ' if (!$keywords);
1044: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1045: " </td>\n");
1046: }
1047: #'
1048:
1049: if ($hash{'display_attrs_6'} == 1) {
1050: my $lang = &Apache::lonnet::metadata($filelink,'language');
1051: $lang = &Apache::loncommon::languagedescription($lang);
1052: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1053: " </td>\n");
1054: }
1055: if ($hash{'display_attrs_8'} == 1) {
1056: # statistics
1057: &dynmetaread($filelink);
1058: $r->print("<td>");
1059: &dynmetaprint($r,$filelink,'count');
1060: &dynmetaprint($r,$filelink,'course');
1061: &dynmetaprint($r,$filelink,'stdno');
1062: &dynmetaprint($r,$filelink,'avetries');
1063: &dynmetaprint($r,$filelink,'difficulty');
1064: &dynmetaprint($r,$filelink,'disc');
1065: &dynmetaprint($r,$filelink,'clear');
1066: &dynmetaprint($r,$filelink,'technical');
1067: &dynmetaprint($r,$filelink,'correct');
1068: &dynmetaprint($r,$filelink,'helpful');
1069: &dynmetaprint($r,$filelink,'depth');
1070: $r->print(" </td>\n");
1071:
1072: }
1073: if ($hash{'display_attrs_10'} == 1) {
1074: my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
1075: if($source eq 'open') {
1076: my $sourcelink = &Apache::lonsource::make_link($filelink,$listname);
1077: my $quotable_sourcelink = &Apache::loncommon::escape_single($sourcelink);
1078: &Apache::loncommon::inhibit_menu_check(\$quotable_sourcelink);
1079: $r->print('<td>'."<a href=\"javascript:openWindow('"
1080: .$quotable_sourcelink.
1081: "', 'previewsource', '700', '700', 'no', 'yes','yes');\"".
1082: " target=\"_self\">Yes</a> "."</td>\n");
1083: } else { #A cuddled else. :P
1084: $r->print("<td> </td>\n");
1085: }
1086: }
1087: if ($hash{'display_attrs_11'} == 1) {
1088: # links
1089: &dynmetaread($filelink);
1090: $r->print('<td>');
1091: &coursecontext($r,$filelink);
1092: &dynmetaprint($r,$filelink,'goto_list');
1093: &dynmetaprint($r,$filelink,'comefrom_list');
1094: &dynmetaprint($r,$filelink,'sequsage_list');
1095: &dynmetaprint($r,$filelink,'dependencies');
1096: &dynmetaprint($r,$filelink,'course_list');
1097: $r->print('</td>');
1098: }
1099: if ($hash{'display_attrs_7'} == 1) {
1100: # Show resource
1101: my $output=&showpreview($filelink);
1102: $r->print('<td> '.($output eq '' ? ' ':$output).
1103: " </td>\n");
1104: }
1105: $r->print("</tr>\n");
1106: }
1107:
1108: # -- display directory
1109: if ($fnptr == $dirptr) {
1110: my $curdir = $startdir.$filecom[0].'/';
1111: my $anchor = $curdir;
1112: $anchor =~ s/\W//g;
1113: $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
1114: &begin_form ($r,$curdir);
1115: my $indentm1 = $indent-1;
1116: if ($indentm1 < 11 and $indentm1 > 0) {
1117: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$indentm1,
1118: ".gif class='LC_icon' />\n");
1119: } else {
1120: my $ten = int($indentm1/10.);
1121: my $rem = $indentm1%10.0;
1122: my $count = 0;
1123: while ($count < $ten) {
1124: $r->print ("<img alt=\"\" src=",$iconpath
1125: ,"whitespace10.gif class='LC_icon' />\n");
1126: $count++;
1127: }
1128: $r->print ("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
1129: ".gif class='LC_icon' />\n") if $rem > 0;
1130: }
1131: $r->print ('<input type="hidden" name="acts" value="" />');
1132: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
1133: 'folder_pointer_'.$diropen.'.gif"');
1134: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
1135: "\n");
1136: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
1137: $r->print ('<a href="javascript:gothere(\''
1138: .$quotable_curdir.'\')">'
1139: .'<img alt="'.&mt('Open Folder').'"src="'.
1140: $iconpath.'folder_'.$diropen.'.gif" class="LC_icon" /></a>'.
1141: "\n");
1142: $r->print ("$listname</form></td>\n");
1143: # Attributes
1144: my $filelink = $startdir.$filecom[0].'/default';
1145:
1146: if ($hash{'display_attrs_0'} == 1) {
1147: my $title = &Apache::lonnet::gettitle($filelink);
1148: $r->print('<td> '.($title eq '' ? ' ' : $title).
1149: ' </td>'."\n");
1150: }
1151: $r->print('<td align=right> ',
1152: $filecom[8]," </td>\n")
1153: if $hash{'display_attrs_1'} == 1;
1154: $r->print('<td> '.
1155: (localtime($filecom[9]))." </td>\n")
1156: if $hash{'display_attrs_2'} == 1;
1157: $r->print('<td> '.
1158: (localtime($filecom[10]))." </td>\n")
1159: if $hash{'display_attrs_3'} == 1;
1160:
1161: if ($hash{'display_attrs_4'} == 1) {
1162: my $author = &Apache::lonnet::metadata($filelink,'author');
1163: $r->print('<td> '.($author eq '' ? ' ' : $author).
1164: " </td>\n");
1165: }
1166: if ($hash{'display_attrs_5'} == 1) {
1167: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1168: # $keywords = ' ' if (!$keywords);
1169: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1170: " </td>\n");
1171: }
1172: if ($hash{'display_attrs_6'} == 1) {
1173: my $lang = &Apache::lonnet::metadata($filelink,'language');
1174: $lang = &Apache::loncommon::languagedescription($lang);
1175: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1176: " </td>\n");
1177: }
1178: if ($hash{'display_attrs_8'} == 1) {
1179: $r->print('<td> </td>');
1180: }
1181: if ($hash{'display_attrs_10'} == 1) {
1182: $r->print('<td> </td>');
1183: }
1184: if ($hash{'display_attrs_11'} == 1) {
1185: $r->print('<td> </td>');
1186: }
1187: if ($hash{'display_attrs_7'} == 1) {
1188: $r->print('<td> </td>');
1189: }
1190: $r->print('</tr>');
1191: }
1192:
1193: }
1194:
1195: sub coursecontext {
1196: my ($r,$filelink)=@_;
1197: my $filesymb=&Apache::lonnet::symbread($filelink);
1198: if ($filesymb) {
1199: my ($map,$index,$resource)=&Apache::lonnet::decode_symb($filesymb);
1200: $r->print(&mt('Already in this course:<br />[_1] in folder/map [_2].<br />',
1201: &Apache::lonnet::gettitle($resource),
1202: &Apache::lonnet::gettitle($map)));
1203: }
1204: }
1205:
1206: sub showpreview {
1207: my ($filelink)=@_;
1208: if ($filelink=~m-^(/ext/|http://)-) {
1209: return &mt('External Resource, preview not enabled');
1210: }
1211: my ($curfext)=($filelink=~/\.(\w+)$/);
1212: my $output='';
1213: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
1214: if ($embstyle eq 'ssi') {
1215: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
1216: '.tmp';
1217: if ((!$env{'form.updatedisplay'}) &&
1218: (-e $cache)) {
1219: open(FH,$cache);
1220: $output=join("\n",<FH>);
1221: close(FH);
1222: } else {
1223: # In update display mode, remove old cache. This is done to retroactively
1224: # clean up course context renderings.
1225: if (-e $cache) {
1226: unlink($cache);
1227: }
1228: $output=&Apache::lonnet::ssi_body($filelink);
1229: # Is access denied? Don't render, don't store
1230: if ($output=~/LONCAPAACCESSCONTROLERRORSCREEN/s) {
1231: $output='';
1232: # Was this rendered in course content? Don't store
1233: } elsif (!&Apache::lonnet::symbread($filelink)) {
1234: open(FH,">$cache");
1235: print FH $output;
1236: close(FH);
1237: }
1238: }
1239: $output='<font size="-2">'.$output.'</font>';
1240: } elsif ($embstyle eq 'img') {
1241: $output='<img alt="'.&mt('Preview').'" src="'.$filelink.'" />';
1242: } elsif ($filelink=~m{^/res/($match_domain)/($match_username)/}) {
1243: $output='<img alt="'.&mt('Preview').'" src="http://'.
1244: &Apache::lonnet::hostname(&Apache::lonnet::homeserver($2,$1)).
1245: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1246: }
1247: return $output;
1248: }
1249:
1250: sub dynmetaprint {
1251: my ($r,$filelink,$item)=@_;
1252: if ($dynhash{$filelink}->{$item}) {
1253: $r->print("\n<br />".$fieldnames{$item}.': '.
1254: &Apache::lonmeta::prettyprint($item,
1255: $dynhash{$filelink}->{$item},
1256: (($env{'form.catalogmode'} ne 'import')?'preview':''),
1257: '',
1258: (($env{'form.catalogmode'} eq 'import')?'document.forms.fileattr':''),1));
1259: }
1260: }
1261:
1262: # ------------------- prints the beginning of a form for directory or file link
1263: sub begin_form {
1264: my ($r,$uri) = @_;
1265: my $anchor = $uri;
1266: $anchor =~ s/\W//g;
1267: $uri=&Apache::loncommon::escape_single($uri);
1268: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1269: '#'.$anchor.
1270: '" onSubmit="return rep_dirpath(\''.$dnum.'\''.
1271: ',document.forms.fileattr.acts.value)" '.
1272: 'enctype="application/x-www-form-urlencoded">'."\n");
1273: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'" />'.
1274: "\n");
1275: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n");
1276: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
1277: $dnum++;
1278: }
1279:
1280: # --------- settings whenever the user causes the indexer window to be launched
1281: sub start_fresh_session {
1282: my ($hash) = @_;
1283: delete $hash->{'form.catalogmode'};
1284: delete $hash->{'form.mode'};
1285: delete $hash->{'form.form'};
1286: delete $hash->{'form.element'};
1287: delete $hash->{'form.omit'};
1288: delete $hash->{'form.only'};
1289: foreach (keys %{$hash}) {
1290: delete $hash->{$_} if (/^(pre_|store)/);
1291: }
1292: }
1293:
1294: # ------------------------------------------------------------------- setvalues
1295: sub setvalues {
1296: # setvalues is used in registerurl to synchronize the database
1297: # hash and environment hashes
1298: my ($H1,$h1key,$H2,$h2key) =@_;
1299: #
1300: if (exists $H2->{$h2key}) {
1301: $H1->{$h1key} = $H2->{$h2key};
1302: } elsif (exists $H1->{$h1key}) {
1303: $H2->{$h2key} = $H1->{$h1key};
1304: }
1305: }
1306:
1307: 1;
1308:
1309: sub cleanup {
1310: if (tied(%hash)){
1311: &Apache::lonnet::logthis('Cleanup indexer: hash');
1312: }
1313: return OK;
1314: }
1315:
1316:
1317:
1318:
1319:
1320: =head1 NAME
1321:
1322: Apache::lonindexer - mod_perl module for cross server filesystem browsing
1323:
1324: =head1 SYNOPSIS
1325:
1326: Invoked by /etc/httpd/conf/srm.conf:
1327:
1328: <LocationMatch "^/res.*/$">
1329: SetHandler perl-script
1330: PerlHandler Apache::lonindexer
1331: </LocationMatch>
1332:
1333: =head1 INTRODUCTION
1334:
1335: This module enables a scheme of browsing across a cross server.
1336:
1337: This is part of the LearningOnline Network with CAPA project
1338: described at http://www.lon-capa.org.
1339:
1340: =head1 BEGIN SUBROUTINE
1341:
1342: This routine is only run once after compilation.
1343:
1344: =over 4
1345:
1346: =item *
1347:
1348: Initializes %language hash table.
1349:
1350: =back
1351:
1352: =head1 HANDLER SUBROUTINE
1353:
1354: This routine is called by Apache and mod_perl.
1355:
1356: =over 4
1357:
1358: =item *
1359:
1360: read in machine configuration variables
1361:
1362: =item *
1363:
1364: see if called from an interactive mode
1365:
1366: =item *
1367:
1368: refresh environment with user database values (in %hash)
1369:
1370: =item *
1371:
1372: define extra fields and buttons in case of special mode
1373:
1374: =item *
1375:
1376: set catalogmodefunctions to have extra needed javascript functionality
1377:
1378: =item *
1379:
1380: print header
1381:
1382: =item *
1383:
1384: evaluate actions from previous page (both cumulatively and chronologically)
1385:
1386: =item *
1387:
1388: output title
1389:
1390: =item *
1391:
1392: get state of file attributes to be showing
1393:
1394: =item *
1395:
1396: output state of file attributes to be showing
1397:
1398: =item *
1399:
1400: output starting row to the indexed file/directory hierarchy
1401:
1402: =item *
1403:
1404: read in what directories have previously been set to "open"
1405:
1406: =item *
1407:
1408: if not at top level, provide an uplink arrow
1409:
1410: =item *
1411:
1412: recursively go through all the directories and output as appropriate
1413:
1414: =item *
1415:
1416: information useful for group import
1417:
1418: =item *
1419:
1420: end the tables
1421:
1422: =item *
1423:
1424: end the output and return
1425:
1426: =back
1427:
1428: =head1 OTHER SUBROUTINES
1429:
1430: =over 4
1431:
1432: =item *
1433:
1434: scanDir - recursive scan of a directory
1435:
1436: =item *
1437:
1438: get_list - get complete matched list based on the uri (returns an array)
1439:
1440: =item *
1441:
1442: match_ext - filters out files based on extensions (returns an array)
1443:
1444: =item *
1445:
1446: display_line - displays one line in appropriate table format
1447:
1448: =item *
1449:
1450: begin_form - prints the beginning of a form for directory or file link
1451:
1452: =item *
1453:
1454: start_fresh_session - settings whenever the user causes the indexer window
1455: to be launched
1456:
1457: =back
1458:
1459: =cut
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