1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.170 2007/07/11 20:32:15 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: $r->print('<br /><input type="button" value="'.&mt("Check All").'" id="checkallbutton" onClick="javascript:checkAll()" />');
531: $r->print('<input type="button" value="'.&mt("Uncheck All").'" id="uncheckallbutton" onClick="javascript:uncheckAll()" />');
532: # ----------------- output starting row to the indexed file/directory hierarchy
533: my $titleclr="#ddffff";
534: #$r->print(&initdebug());
535: #$r->print(&writedebug("Omit:@Omit")) if (@Omit);
536: #$r->print(&writedebug("Only:@Only")) if (@Only);
537: $r->print('<table width="100%" border="0"><tr><td bgcolor="#777777">'."\n");
538: $r->print('<table width="100%" border="0"><tr bgcolor="'.$titleclr.'">'."\n");
539: $r->print("<td $colspan><b>".&mt('Name')."</b></td>\n");
540: $r->print("<td><b>".&mt('Title')."</b></td>\n")
541: if ($hash{'display_attrs_0'} == 1);
542: $r->print("<td align=right><b>".&mt("Size")." (".&mt("bytes").") ".
543: "</b></td>\n") if ($hash{'display_attrs_1'} == 1);
544: $r->print("<td><b>".&mt("Last accessed")."</b></td>\n")
545: if ($hash{'display_attrs_2'} == 1);
546: $r->print("<td><b>".&mt("Last modified")."</b></td>\n")
547: if ($hash{'display_attrs_3'} == 1);
548: $r->print("<td><b>".&mt("Author(s)")."</b></td>\n")
549: if ($hash{'display_attrs_4'} == 1);
550: $r->print("<td><b>".&mt("Keywords")."</b></td>\n")
551: if ($hash{'display_attrs_5'} == 1);
552: $r->print("<td><b>".&mt("Language")."</b></td>\n")
553: if ($hash{'display_attrs_6'} == 1);
554: $r->print("<td><b>".&mt("Usage Statistics")." <br />(".
555: &mt("Courses/Network Hits").")</b> ".&mt('updated periodically')."</td>\n")
556: if ($hash{'display_attrs_8'} == 1);
557: $r->print("<td><b>".&mt("Source Available")."</b></td>\n")
558: if ($hash{'display_attrs_10'} == 1);
559: $r->print("<td><b>".&mt("Linked/Related Resources")."</b></td>\n")
560: if ($hash{'display_attrs_11'} == 1);
561: $r->print("<td><b>".&mt("Resource")."</b></td>\n")
562: if ($hash{'display_attrs_7'} == 1);
563: $r->print('</tr>');
564:
565: # ----------------- read in what directories have previously been set to "open"
566: foreach (keys %hash) {
567: if ($_ =~ /^diropen_status_/) {
568: my $key = $_;
569: $key =~ s/^diropen_status_//;
570: $dirs{$key} = $hash{$_};
571: }
572: }
573:
574: if ($env{'form.openuri'}) { # take care of review and refresh options
575: my $uri=$env{'form.openuri'};
576: if (exists($hash{'diropen_status_'.$uri})) {
577: my $cursta = $hash{'diropen_status_'.$uri};
578: $dirs{$uri} = 'open';
579: $hash{'diropen_status_'.$uri} = 'open';
580: if ($cursta eq 'open') {
581: $dirs{$uri} = 'closed';
582: $hash{'diropen_status_'.$uri} = 'closed';
583: }
584: } else {
585: $hash{'diropen_status_'.$uri} = 'open';
586: $dirs{$uri} = 'open';
587: }
588: }
589:
590: my $toplevel;
591: my $indent = 0;
592: $uri = $uri.'/' if $uri !~ /.*\/$/;
593:
594: if ($env{'form.dirPointer'} ne 'on') {
595: $hash{'top.level'} = $uri;
596: $toplevel = $uri;
597: } else {
598: $toplevel = $hash{'top.level'};
599: }
600:
601: # -------------------------------- if not at top level, provide an uplink arrow
602: if ($toplevel ne '/res/'){
603: my (@uri_com) = split(/\//,$uri);
604: pop @uri_com;
605: my $upone = join('/',@uri_com);
606: my @list = qw (0);
607: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
608: $indent = 1;
609: }
610:
611: # -------- recursively go through all the directories and output as appropriate
612: &scanDir ($r,$toplevel,$indent,\%hash);
613:
614:
615: # -------------------------------------------------------------- end the tables
616: $r->print('</table>');
617: # ---------------------------- embed hidden information useful for group import
618: $r->print("<form name='fnum' action=''>");
619: $r->print("<input type='hidden' name='fnum' value='$fnum' /></form>");
620: # -------------------------------------------------------------- end the tables
621: $r->print('</td></tr></table>');
622:
623: # --------------------------------------------------- end the output and return
624: $r->print(&Apache::loncommon::end_page()."\n");
625: }
626: if(! $c->aborted()) {
627: # write back into the temporary file
628: my %dbfile;
629: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
630: while (my($key,$value) = each(%hash)) {
631: $dbfile{$key}=$value;
632: }
633: untie(%dbfile);
634: }
635: }
636:
637: return OK;
638: }
639:
640: # ----------------------------------------------- recursive scan of a directory
641: sub scanDir {
642: my ($r,$startdir,$indent,$hashref)=@_;
643: my $c = $r->connection();
644: my ($compuri,$curdir);
645: my $dirptr=16384;
646: my $obs;
647: $indent++;
648: my %dupdirs = %dirs;
649: my @list=&get_list($r,$startdir);
650: foreach my $line (@list) {
651: return if ($c->aborted());
652: #This is a kludge, sorry aboot this
653: my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
654: next if($strip =~ /.*\.meta$/ | $obs eq '1');
655: my (@fileparts) = split(/\./,$strip);
656: if ($hash{'display_attrs_9'} != 1) {
657: # if not all versions to be shown
658: if (scalar(@fileparts) >= 3) {
659: my $fext = pop @fileparts;
660: my $ov = pop @fileparts;
661: my $fname = join ('.',@fileparts,$fext);
662: next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
663: }
664: }
665:
666: if ($dom eq 'domain') {
667: # dom list has full path /res/<domain name>/ already
668: $curdir='';
669: $compuri = (split(/\&/,$line))[0];
670: } else {
671: # user, dir & file have name only, i.e., w/o path
672: $compuri = join('',$startdir,$strip,'/');
673: $curdir = $startdir;
674: }
675: my $diropen = 'closed';
676: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
677: while (my ($key,$val)= each %dupdirs) {
678: if ($key eq $compuri and $val eq "open") {
679: $diropen = "opened";
680: delete($dupdirs{$key});
681: delete($dirs{$key});
682: }
683: }
684: }
685: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
686: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
687: }
688: $indent--;
689: }
690:
691: # --------------- get complete matched list based on the uri (returns an array)
692: sub get_list {
693: my ($r,$uri)=@_;
694: my @list=();
695: (my $luri = $uri) =~ s/\//_/g;
696: if ($env{'form.updatedisplay'}) {
697: foreach (keys %hash) {
698: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
699: delete $hash{$_} if ($_ =~ /^dirlist_timestamp_files_/);
700: }
701: }
702:
703: if (defined($hash{'dirlist_files_'.$luri}) &&
704: $hash{'dirlist_timestamp_files_'.$luri}+600 > (time)) {
705: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
706: } elsif ($uri=~/\.(page|sequence)\/$/) {
707: # is a page or a sequence
708: $uri=~s/\/$//;
709: $uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
710: $uri=~s/\/+/\//g;
711: foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
712: my @ratpart=split(/\:/,$_);
713: push(@list,&LONCAPA::map::qtescape($ratpart[1]));
714: }
715: $hash{'dirlist_files_'.$luri} = join("\n",@list);
716: } else {
717: # is really a directory
718: @list = &Apache::lonnet::dirlist($uri);
719: $hash{'dirlist_files_'.$luri} = join("\n",@list);
720: $hash{'dirlist_timestamp_files_'.$luri} = time;
721: }
722: return @list=&match_ext($r,@list);
723: }
724:
725: sub dynmetaread {
726: my $uri=shift;
727: if (($hash{'display_attrs_8'}==1) || ($hash{'display_attrs_11'}==1)) {
728: # We don't want the filename
729: $uri=~s/\/[^\/]+$//;
730: # Did we already see this?
731: my $builddir=$uri;
732: while ($builddir) {
733: if ($dynread{$builddir}) {
734: return 0;
735: }
736: $builddir=~s/\/[^\/]+$//;
737: }
738: # Actually get the data
739: %dynhash=
740: (%dynhash,&Apache::lonmeta::get_dynamic_metadata_from_sql($uri.'/'));
741: # Remember that we got it
742: $dynread{$uri}=1;
743: }
744: }
745:
746: sub initdebug {
747: my $start_page=
748: &Apache::loncommon::start_page('Debug',undef,
749: {'only_body' => 1,});
750: $start_page =~ s/\n/ /g;
751: return <<ENDJS;
752: <script type="text/javascript">
753: var debugging = true;
754: if (debugging) {
755: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
756: }
757:
758: function output(text) {
759: if (debugging) {
760: debuggingWindow.document.writeln(text);
761: }
762: }
763: output('$start_page<pre>');
764: </script>
765: ENDJS
766: }
767:
768: sub writedebug {
769: my ($text) = @_;
770: return "<script type=\"text/javascript\">output('$text');</script>";
771: }
772:
773: # -------------------- filters out files based on extensions (returns an array)
774: sub match_ext {
775: my ($r,@packlist)=@_;
776: my @trimlist;
777: my $nextline;
778: my @fileext;
779: my $dirptr=16384;
780:
781: foreach my $line (@packlist) {
782: chomp $line;
783: $line =~ s/^\/home\/httpd\/html//;
784: my @unpackline = split (/\&/,$line);
785: next if ($unpackline[0] eq '.');
786: next if ($unpackline[0] eq '..');
787: my @filecom = split (/\./,$unpackline[0]);
788: my $fext = pop(@filecom);
789: my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
790: if ($fnptr == 0 and $unpackline[3] ne "") {
791: my $embstyle = &Apache::loncommon::fileembstyle($fext);
792: push @trimlist,$line if (defined($embstyle) &&
793: ($embstyle ne 'hdn' or $fext eq 'meta'));
794: } else {
795: push @trimlist,$line;
796: }
797: }
798: @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
799: return @trimlist;
800: }
801:
802: # ------------------------------- displays one line in appropriate table format
803: sub display_line {
804: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
805: my (@pathfn, $fndir);
806: # there could be relative paths (files actually belonging into this directory)
807: # or absolute paths (for example, from sequences)
808: my $absolute;
809: my $pathprefix;
810: if ($line=~m|^/res/| && $startdir ne '') {
811: $absolute=1;
812: $pathprefix='';
813: } else {
814: $absolute=0;
815: $pathprefix=$startdir;
816: }
817: my $dirptr=16384;
818: my $fileclr="#ffffe6";
819: my $iconpath= $r->dir_config('lonIconsURL') . '/';
820:
821: my @filecom = split (/\&/,$line);
822: my @pathcom = split (/\//,$filecom[0]);
823: my $listname = $pathcom[scalar(@pathcom)-1];
824: my $fnptr = $filecom[3]&$dirptr;
825: my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
826: $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
827:
828: my $tabtag='</td>';
829: my $i=0;
830: while ($i<=11) {
831: $tabtag=join('',$tabtag,"<td> </td>")
832: if ($i != 9 &&
833: $hash{'display_attrs_'.$i} == 1);
834: $i++;
835: }
836: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
837:
838: # display uplink arrow
839: if ($filecom[1] eq 'viewOneUp') {
840: my $updir=$startdir;
841: # -------------- Filter out sequence containment in crumbs and "recent folders"
842: $updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
843: $updir=~s/\/+/\//g;
844:
845: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
846: $r->print("<td>\n");
847: $r->print ('<form method="post" name="dirpathUP" action="'.$updir.
848: '/" '.
849: 'onSubmit="return rep_dirpath(\'UP\','.
850: 'document.forms.fileattr.acts.value)" '.
851: 'enctype="application/x-www-form-urlencoded"'.
852: '>'."\n");
853: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
854: $r->print ('<input type=hidden name=openuri value="'.
855: $startdir.'" />'."\n");
856: $r->print ('<input type="hidden" name="acts" value="" />'."\n");
857: $r->print ('<input src="'.$iconpath.'arrow_up.gif"');
858: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
859: "\n");
860: $r->print(&mt("Up")."</form>$tabtag</tr>\n");
861: return OK;
862: }
863: # Do we have permission to look at this?
864:
865: if($filecom[15] ne '1') { return OK if (!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])); }
866:
867: # make absolute links appear on different background
868: if ($absolute) { $fileclr='#ccdd99'; }
869:
870: # display domain
871: if ($filecom[1] eq 'domain') {
872: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n")
873: if ($env{'form.dirPointer'} eq "on");
874: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
875: $r->print("<td>");
876: &begin_form ($r,$filecom[0]);
877: my $anchor = $filecom[0];
878: $anchor =~ s/\W//g;
879: $r->print ('<a name="'.$anchor.'"></a>');
880: $r->print ('<input type="hidden" name="acts" value="" />');
881: $r->print ('<input src="'.$iconpath.'folder_pointer_'.
882: $diropen.'.gif"');
883: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
884: "\n");
885: my $quotable_filecom = &Apache::loncommon::escape_single($filecom[0]);
886: $r->print ('<a href="javascript:gothere(\''.$quotable_filecom.
887: '\')"><img alt="" src="'.$iconpath.'server.gif"');
888: $r->print (' class="LC_icon" /></a>'."\n");
889: $r->print (&mt("Domain")." - $listname ");
890: if (&Apache::lonnet::domain($listname,'description')) {
891: $r->print("(".&Apache::lonnet::domain($listname,'description').
892: ")");
893: }
894: $r->print ("</form>$tabtag</tr>\n");
895: return OK;
896:
897: # display user directory
898: }
899: if ($filecom[1] eq 'user') {
900: # $r->print("<tr valign=$valign bgcolor=\"$fileclr\">$extrafield");
901: my $curdir = $startdir.$filecom[0].'/';
902: my $anchor = $curdir;
903: $anchor =~ s/\W//g;
904: $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
905: &begin_form ($r,$curdir);
906: $r->print ('<a name="'.$anchor.'"></a><img alt="" src="'.$iconpath.
907: 'whitespace1.gif" class="LC_icon" />'."\n");
908: $r->print ('<input type="hidden" name="acts" value="" />');
909: $r->print ('<input src="'.$iconpath.'folder_pointer_'.$diropen.
910: '.gif"');
911: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
912: "\n");
913: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
914: $r->print ('<a href="javascript:gothere(\''.$quotable_curdir
915: .'\')"><img alt="'.$msg.'" src="'.
916: $iconpath.'quill.gif" class="LC_indexer_icon" /></a>');
917: my $domain=(split(m|/|,$startdir))[2];
918: my $plainname=&Apache::loncommon::plainname($listname,$domain);
919: $r->print ($listname);
920: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
921: $r->print ('</form>'.$tabtag.'</tr>'."\n");
922: return OK;
923: }
924:
925: # display file
926: if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
927: my $title;
928: my $filelink = $pathprefix.$filecom[0];
929: if ($hash{'display_attrs_0'} == 1) {
930: $title = &Apache::lonnet::gettitle($filelink);
931: }
932: my @file_ext = split (/\./,$listname);
933: my $curfext = $file_ext[-1];
934: if (@Omit) {
935: foreach (@Omit) { return OK if ($curfext eq $_); }
936: }
937: if (@Only) {
938: my $skip = 1;
939: foreach (@Only) { $skip = 0 if ($curfext eq $_); }
940: return OK if ($skip > 0);
941: }
942: # Set the icon for the file
943: my $iconname = &Apache::loncommon::icon($listname);
944: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\"><td nowrap='nowrap' valign='top'>");
945:
946: if ($env{'form.catalogmode'} eq 'interactive') {
947: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
948: $r->print("<a href=\"javascript:select_data(\'",
949: $quotable_filelink,"')\">");
950: $r->print("<img alt=\"\" src='",$iconpath,"select.gif' class='LC_icon' /></a>".
951: "\n");
952: $r->print("</td><td nowrap='nowrap' valign='top'>");
953: } elsif ($env{'form.catalogmode'} eq 'import') {
954: $r->print("<form name='form$fnum' action=''>\n");
955: $r->print("<input type='checkbox' name='filelink"."' ".
956: "value='$filelink' onClick='".
957: "javascript:queue(\"form$fnum\")' ");
958: if ($hash{'store_'.$filelink}) {
959: $r->print("checked");
960: }
961: $r->print(" />\n");
962: $r->print("</form></td><td nowrap='nowrap' valign='top'>");
963: $hash{"pre_${fnum}_link"}=$filelink;
964: $hash{"pre_${fnum}_title"}=$title;
965: if (!$hash{"pre_${fnum}_title"}) {
966: $hash{"pre_${fnum}_title"} = 'Not_retrieved';
967: }
968: $fnum++;
969: }
970: # Form to open or close sequences
971: if ($filelink=~/\.(page|sequence)$/) {
972: my $curdir = $startdir.$filecom[0].'/';
973: &begin_form($r,$curdir);
974: $indent--;
975: }
976: # General indentation
977: if ($indent > 0 and $indent < 11) {
978: $r->print("<img alt=\"\" src='",$iconpath,"whitespace",$indent,
979: ".gif' class='LC_icon' />\n");
980: } elsif ($indent >0) {
981: my $ten = int($indent/10.);
982: my $rem = $indent%10.0;
983: my $count = 0;
984: while ($count < $ten) {
985: $r->print("<img alt=\"\" src=".$iconpath.
986: "whitespace10.gif class='LC_icon' />\n");
987: $count++;
988: }
989: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
990: ".gif class='LC_icon' />\n") if $rem > 0;
991: }
992: # Sequence open/close icon
993: if ($filelink=~/\.(page|sequence)$/) {
994: my $curdir = $startdir.$filecom[0].'/';
995: my $anchor = $curdir;
996: $anchor =~ s/\W//g;
997: $r->print ('<input type="hidden" name="acts" value="" />');
998: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
999: 'folder_pointer_'.$diropen.'.gif"');
1000: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
1001: "\n");
1002: }
1003: # Filetype icons
1004: $r->print("<img alt=\"\" src='$iconname' class='LC_icon' />\n");
1005: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
1006:
1007: $r->print (" <a href=\"javascript:openWindow('".$quotable_filelink.
1008: "?inhibitmenu=yes','previewfile','450','500','no','yes','yes');\"".
1009: " target=\"_self\">$listname</a> ");
1010: $quotable_filelink = &Apache::loncommon::escape_single($filelink.'.meta');
1011: &Apache::loncommon::inhibit_menu_check(\$quotable_filelink);
1012: $r->print (" (<a href=\"javascript:openWindow('".$quotable_filelink.
1013: "?inhibitmenu=yes','metadatafile','500','550','no','yes','no');\" ".
1014: " target=\"_self\">metadata</a>) ");
1015: # Close form to open/close sequence
1016: if ($filelink=~/\.(page|sequence)$/) {
1017: $r->print('</form>');
1018: }
1019: $r->print("</td>\n");
1020: if ($hash{'display_attrs_0'} == 1) {
1021: $r->print('<td> '.($title eq '' ? ' ' : $title).
1022: ' </td>'."\n");
1023: }
1024: $r->print('<td align=right> ',
1025: $filecom[8]," </td>\n")
1026: if $hash{'display_attrs_1'} == 1;
1027: $r->print('<td> '.
1028: (localtime($filecom[9]))." </td>\n")
1029: if $hash{'display_attrs_2'} == 1;
1030: $r->print('<td> '.
1031: (localtime($filecom[10]))." </td>\n")
1032: if $hash{'display_attrs_3'} == 1;
1033:
1034: if ($hash{'display_attrs_4'} == 1) {
1035: my $author = &Apache::lonnet::metadata($filelink,'author');
1036: $r->print('<td> '.($author eq '' ? ' ' : $author).
1037: " </td>\n");
1038: }
1039: if ($hash{'display_attrs_5'} == 1) {
1040: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1041: # $keywords = ' ' if (!$keywords);
1042: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1043: " </td>\n");
1044: }
1045: #'
1046:
1047: if ($hash{'display_attrs_6'} == 1) {
1048: my $lang = &Apache::lonnet::metadata($filelink,'language');
1049: $lang = &Apache::loncommon::languagedescription($lang);
1050: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1051: " </td>\n");
1052: }
1053: if ($hash{'display_attrs_8'} == 1) {
1054: # statistics
1055: &dynmetaread($filelink);
1056: $r->print("<td>");
1057: &dynmetaprint($r,$filelink,'count');
1058: &dynmetaprint($r,$filelink,'course');
1059: &dynmetaprint($r,$filelink,'stdno');
1060: &dynmetaprint($r,$filelink,'avetries');
1061: &dynmetaprint($r,$filelink,'difficulty');
1062: &dynmetaprint($r,$filelink,'disc');
1063: &dynmetaprint($r,$filelink,'clear');
1064: &dynmetaprint($r,$filelink,'technical');
1065: &dynmetaprint($r,$filelink,'correct');
1066: &dynmetaprint($r,$filelink,'helpful');
1067: &dynmetaprint($r,$filelink,'depth');
1068: $r->print(" </td>\n");
1069:
1070: }
1071: if ($hash{'display_attrs_10'} == 1) {
1072: my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
1073: if($source eq 'open') {
1074: my $sourcelink = &Apache::lonsource::make_link($filelink,$listname);
1075: my $quotable_sourcelink = &Apache::loncommon::escape_single($sourcelink);
1076: &Apache::loncommon::inhibit_menu_check(\$quotable_sourcelink);
1077: $r->print('<td>'."<a href=\"javascript:openWindow('"
1078: .$quotable_sourcelink.
1079: "', 'previewsource', '700', '700', 'no', 'yes','yes');\"".
1080: " target=\"_self\">Yes</a> "."</td>\n");
1081: } else { #A cuddled else. :P
1082: $r->print("<td> </td>\n");
1083: }
1084: }
1085: if ($hash{'display_attrs_11'} == 1) {
1086: # links
1087: &dynmetaread($filelink);
1088: $r->print('<td>');
1089: &coursecontext($r,$filelink);
1090: &dynmetaprint($r,$filelink,'goto_list');
1091: &dynmetaprint($r,$filelink,'comefrom_list');
1092: &dynmetaprint($r,$filelink,'sequsage_list');
1093: &dynmetaprint($r,$filelink,'dependencies');
1094: &dynmetaprint($r,$filelink,'course_list');
1095: $r->print('</td>');
1096: }
1097: if ($hash{'display_attrs_7'} == 1) {
1098: # Show resource
1099: my $output=&showpreview($filelink);
1100: $r->print('<td> '.($output eq '' ? ' ':$output).
1101: " </td>\n");
1102: }
1103: $r->print("</tr>\n");
1104: }
1105:
1106: # -- display directory
1107: if ($fnptr == $dirptr) {
1108: my $curdir = $startdir.$filecom[0].'/';
1109: my $anchor = $curdir;
1110: $anchor =~ s/\W//g;
1111: $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
1112: &begin_form ($r,$curdir);
1113: my $indentm1 = $indent-1;
1114: if ($indentm1 < 11 and $indentm1 > 0) {
1115: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$indentm1,
1116: ".gif class='LC_icon' />\n");
1117: } else {
1118: my $ten = int($indentm1/10.);
1119: my $rem = $indentm1%10.0;
1120: my $count = 0;
1121: while ($count < $ten) {
1122: $r->print ("<img alt=\"\" src=",$iconpath
1123: ,"whitespace10.gif class='LC_icon' />\n");
1124: $count++;
1125: }
1126: $r->print ("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
1127: ".gif class='LC_icon' />\n") if $rem > 0;
1128: }
1129: $r->print ('<input type="hidden" name="acts" value="" />');
1130: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
1131: 'folder_pointer_'.$diropen.'.gif"');
1132: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
1133: "\n");
1134: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
1135: $r->print ('<a href="javascript:gothere(\''
1136: .$quotable_curdir.'\')">'
1137: .'<img alt="'.&mt('Open Folder').'"src="'.
1138: $iconpath.'folder_'.$diropen.'.gif" class="LC_icon" /></a>'.
1139: "\n");
1140: $r->print ("$listname</form></td>\n");
1141: # Attributes
1142: my $filelink = $startdir.$filecom[0].'/default';
1143:
1144: if ($hash{'display_attrs_0'} == 1) {
1145: my $title = &Apache::lonnet::gettitle($filelink);
1146: $r->print('<td> '.($title eq '' ? ' ' : $title).
1147: ' </td>'."\n");
1148: }
1149: $r->print('<td align=right> ',
1150: $filecom[8]," </td>\n")
1151: if $hash{'display_attrs_1'} == 1;
1152: $r->print('<td> '.
1153: (localtime($filecom[9]))." </td>\n")
1154: if $hash{'display_attrs_2'} == 1;
1155: $r->print('<td> '.
1156: (localtime($filecom[10]))." </td>\n")
1157: if $hash{'display_attrs_3'} == 1;
1158:
1159: if ($hash{'display_attrs_4'} == 1) {
1160: my $author = &Apache::lonnet::metadata($filelink,'author');
1161: $r->print('<td> '.($author eq '' ? ' ' : $author).
1162: " </td>\n");
1163: }
1164: if ($hash{'display_attrs_5'} == 1) {
1165: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1166: # $keywords = ' ' if (!$keywords);
1167: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1168: " </td>\n");
1169: }
1170: if ($hash{'display_attrs_6'} == 1) {
1171: my $lang = &Apache::lonnet::metadata($filelink,'language');
1172: $lang = &Apache::loncommon::languagedescription($lang);
1173: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1174: " </td>\n");
1175: }
1176: if ($hash{'display_attrs_8'} == 1) {
1177: $r->print('<td> </td>');
1178: }
1179: if ($hash{'display_attrs_10'} == 1) {
1180: $r->print('<td> </td>');
1181: }
1182: if ($hash{'display_attrs_11'} == 1) {
1183: $r->print('<td> </td>');
1184: }
1185: if ($hash{'display_attrs_7'} == 1) {
1186: $r->print('<td> </td>');
1187: }
1188: $r->print('</tr>');
1189: }
1190:
1191: }
1192:
1193: sub coursecontext {
1194: my ($r,$filelink)=@_;
1195: my $filesymb=&Apache::lonnet::symbread($filelink);
1196: if ($filesymb) {
1197: my ($map,$index,$resource)=&Apache::lonnet::decode_symb($filesymb);
1198: $r->print(&mt('Already in this course:<br />[_1] in folder/map [_2].<br />',
1199: &Apache::lonnet::gettitle($resource),
1200: &Apache::lonnet::gettitle($map)));
1201: }
1202: }
1203:
1204: sub showpreview {
1205: my ($filelink)=@_;
1206: if ($filelink=~m-^(/ext/|http://)-) {
1207: return &mt('External Resource, preview not enabled');
1208: }
1209: my ($curfext)=($filelink=~/\.(\w+)$/);
1210: my $output='';
1211: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
1212: if ($embstyle eq 'ssi') {
1213: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
1214: '.tmp';
1215: if ((!$env{'form.updatedisplay'}) &&
1216: (-e $cache)) {
1217: open(FH,$cache);
1218: $output=join("\n",<FH>);
1219: close(FH);
1220: } else {
1221: # In update display mode, remove old cache. This is done to retroactively
1222: # clean up course context renderings.
1223: if (-e $cache) {
1224: unlink($cache);
1225: }
1226: $output=&Apache::lonnet::ssi_body($filelink);
1227: # Is access denied? Don't render, don't store
1228: if ($output=~/LONCAPAACCESSCONTROLERRORSCREEN/s) {
1229: $output='';
1230: # Was this rendered in course content? Don't store
1231: } elsif (!&Apache::lonnet::symbread($filelink)) {
1232: open(FH,">$cache");
1233: print FH $output;
1234: close(FH);
1235: }
1236: }
1237: $output='<font size="-2">'.$output.'</font>';
1238: } elsif ($embstyle eq 'img') {
1239: $output='<img alt="'.&mt('Preview').'" src="'.$filelink.'" />';
1240: } elsif ($filelink=~m{^/res/($match_domain)/($match_username)/}) {
1241: $output='<img alt="'.&mt('Preview').'" src="http://'.
1242: &Apache::lonnet::hostname(&Apache::lonnet::homeserver($2,$1)).
1243: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1244: }
1245: return $output;
1246: }
1247:
1248: sub dynmetaprint {
1249: my ($r,$filelink,$item)=@_;
1250: if ($dynhash{$filelink}->{$item}) {
1251: $r->print("\n<br />".$fieldnames{$item}.': '.
1252: &Apache::lonmeta::prettyprint($item,
1253: $dynhash{$filelink}->{$item},
1254: (($env{'form.catalogmode'} ne 'import')?'preview':''),
1255: '',
1256: (($env{'form.catalogmode'} eq 'import')?'document.forms.fileattr':''),1));
1257: }
1258: }
1259:
1260: # ------------------- prints the beginning of a form for directory or file link
1261: sub begin_form {
1262: my ($r,$uri) = @_;
1263: my $anchor = $uri;
1264: $anchor =~ s/\W//g;
1265: $uri=&Apache::loncommon::escape_single($uri);
1266: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1267: '#'.$anchor.
1268: '" onSubmit="return rep_dirpath(\''.$dnum.'\''.
1269: ',document.forms.fileattr.acts.value)" '.
1270: 'enctype="application/x-www-form-urlencoded">'."\n");
1271: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'" />'.
1272: "\n");
1273: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n");
1274: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
1275: $dnum++;
1276: }
1277:
1278: # --------- settings whenever the user causes the indexer window to be launched
1279: sub start_fresh_session {
1280: my ($hash) = @_;
1281: delete $hash->{'form.catalogmode'};
1282: delete $hash->{'form.mode'};
1283: delete $hash->{'form.form'};
1284: delete $hash->{'form.element'};
1285: delete $hash->{'form.omit'};
1286: delete $hash->{'form.only'};
1287: foreach (keys %{$hash}) {
1288: delete $hash->{$_} if (/^(pre_|store)/);
1289: }
1290: }
1291:
1292: # ------------------------------------------------------------------- setvalues
1293: sub setvalues {
1294: # setvalues is used in registerurl to synchronize the database
1295: # hash and environment hashes
1296: my ($H1,$h1key,$H2,$h2key) =@_;
1297: #
1298: if (exists $H2->{$h2key}) {
1299: $H1->{$h1key} = $H2->{$h2key};
1300: } elsif (exists $H1->{$h1key}) {
1301: $H2->{$h2key} = $H1->{$h1key};
1302: }
1303: }
1304:
1305: 1;
1306:
1307: sub cleanup {
1308: if (tied(%hash)){
1309: &Apache::lonnet::logthis('Cleanup indexer: hash');
1310: }
1311: return OK;
1312: }
1313:
1314:
1315:
1316:
1317:
1318: =head1 NAME
1319:
1320: Apache::lonindexer - mod_perl module for cross server filesystem browsing
1321:
1322: =head1 SYNOPSIS
1323:
1324: Invoked by /etc/httpd/conf/srm.conf:
1325:
1326: <LocationMatch "^/res.*/$">
1327: SetHandler perl-script
1328: PerlHandler Apache::lonindexer
1329: </LocationMatch>
1330:
1331: =head1 INTRODUCTION
1332:
1333: This module enables a scheme of browsing across a cross server.
1334:
1335: This is part of the LearningOnline Network with CAPA project
1336: described at http://www.lon-capa.org.
1337:
1338: =head1 BEGIN SUBROUTINE
1339:
1340: This routine is only run once after compilation.
1341:
1342: =over 4
1343:
1344: =item *
1345:
1346: Initializes %language hash table.
1347:
1348: =back
1349:
1350: =head1 HANDLER SUBROUTINE
1351:
1352: This routine is called by Apache and mod_perl.
1353:
1354: =over 4
1355:
1356: =item *
1357:
1358: read in machine configuration variables
1359:
1360: =item *
1361:
1362: see if called from an interactive mode
1363:
1364: =item *
1365:
1366: refresh environment with user database values (in %hash)
1367:
1368: =item *
1369:
1370: define extra fields and buttons in case of special mode
1371:
1372: =item *
1373:
1374: set catalogmodefunctions to have extra needed javascript functionality
1375:
1376: =item *
1377:
1378: print header
1379:
1380: =item *
1381:
1382: evaluate actions from previous page (both cumulatively and chronologically)
1383:
1384: =item *
1385:
1386: output title
1387:
1388: =item *
1389:
1390: get state of file attributes to be showing
1391:
1392: =item *
1393:
1394: output state of file attributes to be showing
1395:
1396: =item *
1397:
1398: output starting row to the indexed file/directory hierarchy
1399:
1400: =item *
1401:
1402: read in what directories have previously been set to "open"
1403:
1404: =item *
1405:
1406: if not at top level, provide an uplink arrow
1407:
1408: =item *
1409:
1410: recursively go through all the directories and output as appropriate
1411:
1412: =item *
1413:
1414: information useful for group import
1415:
1416: =item *
1417:
1418: end the tables
1419:
1420: =item *
1421:
1422: end the output and return
1423:
1424: =back
1425:
1426: =head1 OTHER SUBROUTINES
1427:
1428: =over 4
1429:
1430: =item *
1431:
1432: scanDir - recursive scan of a directory
1433:
1434: =item *
1435:
1436: get_list - get complete matched list based on the uri (returns an array)
1437:
1438: =item *
1439:
1440: match_ext - filters out files based on extensions (returns an array)
1441:
1442: =item *
1443:
1444: display_line - displays one line in appropriate table format
1445:
1446: =item *
1447:
1448: begin_form - prints the beginning of a form for directory or file link
1449:
1450: =item *
1451:
1452: start_fresh_session - settings whenever the user causes the indexer window
1453: to be launched
1454:
1455: =back
1456:
1457: =cut
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