1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.166 2007/06/29 19:21:15 banghart Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: ###
29:
30: ###############################################################################
31: ## ##
32: ## ORGANIZATION OF THIS PERL MODULE ##
33: ## ##
34: ## 1. Description of functions ##
35: ## 2. Modules used by this module ##
36: ## 3. Choices for different output views (detailed, summary, xml, etc) ##
37: ## 4. BEGIN block (to be run once after compilation) ##
38: ## 5. Handling routine called via Apache and mod_perl ##
39: ## 6. Other subroutines ##
40: ## ##
41: ###############################################################################
42:
43: package Apache::lonindexer;
44:
45: # ------------------------------------------------- modules used by this module
46: use strict;
47: use Apache::lonnet;
48: use Apache::loncommon();
49: use Apache::lonhtmlcommon();
50: use Apache::lonsequence();
51: use Apache::Constants qw(:common);
52: use Apache::lonmeta;
53: use Apache::File;
54: use Apache::lonlocal;
55: use Apache::lonsource();
56: use 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?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: # ---------------------------------------------------------------- Print Header
349: my $js = <<"ENDHEADER";
350: <script type="text/javascript">
351: $catalogmodefunctions
352: function checkAll() {
353: var numForms = document.forms.length;
354: for (i=0;i<numForms;i++) {
355: var numElements = document.forms[i].elements.length;
356: for (j=0;j<numElements;j++){
357: var fieldName = document.forms[i].elements[j].name;
358: if (fieldName == 'filelink') {
359: document.forms[i].elements[j].checked = true;
360: }
361: }
362: }
363: }
364: function uncheckAll() {
365: var numForms = document.forms.length;
366: for (i=0;i<numForms;i++) {
367: var numElements = document.forms[i].elements.length;
368: for (j=0;j<numElements;j++){
369: var fieldName = document.forms[i].elements[j].name;
370: if (fieldName == 'filelink') {
371: document.forms[i].elements[j].checked = false;
372: }
373: }
374: }
375: }
376: function openWindow(url, wdwName, w, h, toolbar,scrollbar,locationbar) {
377: var xpos = (screen.width-w)/2;
378: xpos = (xpos < 0) ? '0' : xpos;
379: var ypos = (screen.height-h)/2-30;
380: ypos = (ypos < 0) ? '0' : ypos;
381: var options = "width=" + w + ",height=" + h + ",screenx="+xpos+",screeny="+ypos+",";
382: options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
383: options += "menubar=no,toolbar="+toolbar+",location="+locationbar+",directories=no";
384: var newWin = window.open(url, wdwName, options);
385: newWin.focus();
386: }
387: function gothere(val) {
388: window.location=val+'?acts='+document.forms.fileattr.acts.value;
389: }
390: </script>
391: ENDHEADER
392:
393: my ($headerdom)=($uri=~m{^/res/($match_domain)/});
394: $r->print(&Apache::loncommon::start_page('Browse Resources',$js,
395: {'domain' => $headerdom,}));
396: # - Evaluate actions from previous page (both cumulatively and chronologically)
397: if ($env{'form.catalogmode'} eq 'import') {
398: my $acts=$env{'form.acts'};
399: my @Acts=split(/b/,$acts);
400: my %ahash;
401: my %achash;
402: my $ac=0;
403: # some initial hashes for working with data
404: foreach (@Acts) {
405: my ($state,$ref)=split(/a/);
406: $ahash{$ref}=$state;
407: $achash{$ref}=$ac;
408: $ac++;
409: }
410: # sorting through the actions and changing the global database hash
411: foreach my $key (sort {$achash{$a}<=>$achash{$b}} (keys %ahash)) {
412: if ($ahash{$key} eq '1') {
413: $hash{'store_'.$hash{'pre_'.$key.'_link'}}=
414: $hash{'pre_'.$key.'_title'};
415: $hash{'storectr_'.$hash{'pre_'.$key.'_link'}}=
416: $hash{'storectr'}+0;
417: $hash{'storectr'}++;
418: }
419: if ($ahash{$key} eq '0') {
420: if ($hash{'store_'.$hash{'pre_'.$key.'_link'}}) {
421: delete $hash{'store_'.$hash{'pre_'.$key.'_link'}};
422: }
423: }
424: }
425: # deleting the previously cached listing
426: foreach (keys %hash) {
427: if ($_ =~ /^pre_/ && $_ =~/link$/) {
428: my $key = $_;
429: $key =~ s/^pre_//;
430: $key =~ s/_[^_]*$//;
431: delete $hash{'pre_'.$key.'_title'};
432: delete $hash{'pre_'.$key.'_link'};
433: }
434: }
435: }
436:
437: # ---------------------------------- get state of file attributes to be showing
438: if ($env{'form.attrs'}) {
439: for (my $i=0; $i<=11; $i++) {
440: delete $hash{'display_attrs_'.$i};
441: if ($env{'form.attr'.$i} == 1) {
442: $attrchk[$i] = 'checked';
443: $hash{'display_attrs_'.$i} = 1;
444: }
445: }
446: } else {
447: for (my $i=0; $i<=11; $i++) {
448: $attrchk[$i] = 'checked' if $hash{'display_attrs_'.$i} == 1;
449: }
450: }
451:
452: # ------------------------------- output state of file attributes to be showing
453: # All versions has to the last item
454: # since it does not take an extra col
455: my %lt=&Apache::lonlocal::texthash(
456: 'ti' => 'Title',
457: 'si' => 'Size',
458: 'la' => 'Last access',
459: 'lm' => 'Last modified',
460: 'st' => 'Statistics',
461: 'au' => 'Author',
462: 'kw' => 'Keywords',
463: 'ln' => 'Language',
464: 'sa' => 'Source Available',
465: 'sr' => 'Show resource',
466: 'li' => 'Linked/Related Resources',
467: 'av' => 'All versions',
468: 'ud' => 'Update Display'
469: );
470: $r->print(<<END);
471: <form method="post" name="fileattr" action="$uri"
472: enctype="application/x-www-form-urlencoded">
473: <label><input type="checkbox" name="attr9" value="1" $attrchk[9] onClick="this.form.submit();" /> $lt{'av'}</label>
474: <table border="0">
475: <tr>
476: <td><label><input type="checkbox" name="attr0" value="1" $attrchk[0] onClick="this.form.submit();" /> $lt{'ti'}</label></td>
477: <td><label><input type="checkbox" name="attr4" value="1" $attrchk[4] onClick="this.form.submit();" /> $lt{'au'}</label></td>
478: <td><label><input type="checkbox" name="attr5" value="1" $attrchk[5] onClick="this.form.submit();" /> $lt{'kw'}</label></td>
479: <td><label><input type="checkbox" name="attr6" value="1" $attrchk[6] onClick="this.form.submit();" /> $lt{'ln'}</label></td>
480: </tr>
481: <tr>
482: <td><label><input type="checkbox" name="attr1" value="1" $attrchk[1] onClick="this.form.submit();" /> $lt{'si'}</label></td>
483: <td><label><input type="checkbox" name="attr2" value="1" $attrchk[2] onClick="this.form.submit();" /> $lt{'la'}</label></td>
484: <td><label><input type="checkbox" name="attr3" value="1" $attrchk[3] onClick="this.form.submit();" /> $lt{'lm'}</label></td>
485: <td><label><input type="checkbox" name="attr10" value="1" $attrchk[10] onClick="this.form.submit();" /> $lt{'sa'}</label></td>
486: </tr>
487: <tr>
488: <td><label><input type="checkbox" name="attr8" value="1" $attrchk[8] onClick="this.form.submit();" /> $lt{'st'}</label></td>
489: <td><label><input type="checkbox" name="attr11" value="1" $attrchk[11] onClick="this.form.submit();" /> $lt{'li'}</label></td>
490: <td><label><input type="checkbox" name="attr7" value="1" $attrchk[7] onClick="this.form.submit();" /> $lt{'sr'}</label></td>
491: <td> </td>
492: </tr>
493: </table>
494: <input type="hidden" name="attrs" value="1" />
495: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
496: <input type="hidden" name="acts" value="" />
497: $closebutton $groupimportbutton
498: END
499: # -------------- Filter out sequence containment in crumbs and "recent folders"
500: my $storeuri=$uri;
501: $storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
502: $storeuri=~s/\/+/\//g;
503: # ---------------------------------------------------------------- Bread crumbs
504: $r->print(&Apache::lonhtmlcommon::crumbs($storeuri,'','',
505: (($env{'form.catalogmode'} eq 'import')?
506: 'document.forms.fileattr':'')).
507: &Apache::lonhtmlcommon::select_recent('residx','resrecent',
508: '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();'));
509: # -------------------------------------------------------- Resource Home Button
510: my $reshome=$env{'course.'.$env{'request.course.id'}.'.reshome'};
511: if ($reshome) {
512: $r->print("<font size='+2'><a href='");
513: if ($env{'form.catalogmode'} eq 'import') {
514: $r->print('javascript:document.forms.fileattr.action="'.$reshome.'";document.forms.fileattr.submit();');
515: } else {
516: $r->print($reshome);
517: }
518: $r->print("'>".&mt('Home').'</a></font>');
519: }
520: $r->print('</form>');
521: # ------------------------------------------------------ Remember where we were
522: &Apache::loncommon::storeresurl($storeuri);
523: &Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
524: # -------------------------------------------------- Check All and Uncheck all
525: $r->print('<br /><input type="button" value="'.&mt("Check All").'" id="checkallbutton" onClick="javascript:checkAll()" />');
526: $r->print('<input type="button" value="'.&mt("Uncheck All").'" id="uncheckallbutton" onClick="javascript:uncheckAll()" />');
527: # ----------------- output starting row to the indexed file/directory hierarchy
528: my $titleclr="#ddffff";
529: #$r->print(&initdebug());
530: #$r->print(&writedebug("Omit:@Omit")) if (@Omit);
531: #$r->print(&writedebug("Only:@Only")) if (@Only);
532: $r->print('<table width="100%" border="0"><tr><td bgcolor="#777777">'."\n");
533: $r->print('<table width="100%" border="0"><tr bgcolor="'.$titleclr.'">'."\n");
534: $r->print("<td $colspan><b>".&mt('Name')."</b></td>\n");
535: $r->print("<td><b>".&mt('Title')."</b></td>\n")
536: if ($hash{'display_attrs_0'} == 1);
537: $r->print("<td align=right><b>".&mt("Size")." (".&mt("bytes").") ".
538: "</b></td>\n") if ($hash{'display_attrs_1'} == 1);
539: $r->print("<td><b>".&mt("Last accessed")."</b></td>\n")
540: if ($hash{'display_attrs_2'} == 1);
541: $r->print("<td><b>".&mt("Last modified")."</b></td>\n")
542: if ($hash{'display_attrs_3'} == 1);
543: $r->print("<td><b>".&mt("Author(s)")."</b></td>\n")
544: if ($hash{'display_attrs_4'} == 1);
545: $r->print("<td><b>".&mt("Keywords")."</b></td>\n")
546: if ($hash{'display_attrs_5'} == 1);
547: $r->print("<td><b>".&mt("Language")."</b></td>\n")
548: if ($hash{'display_attrs_6'} == 1);
549: $r->print("<td><b>".&mt("Usage Statistics")." <br />(".
550: &mt("Courses/Network Hits").")</b> ".&mt('updated periodically')."</td>\n")
551: if ($hash{'display_attrs_8'} == 1);
552: $r->print("<td><b>".&mt("Source Available")."</b></td>\n")
553: if ($hash{'display_attrs_10'} == 1);
554: $r->print("<td><b>".&mt("Linked/Related Resources")."</b></td>\n")
555: if ($hash{'display_attrs_11'} == 1);
556: $r->print("<td><b>".&mt("Resource")."</b></td>\n")
557: if ($hash{'display_attrs_7'} == 1);
558: $r->print('</tr>');
559:
560: # ----------------- read in what directories have previously been set to "open"
561: foreach (keys %hash) {
562: if ($_ =~ /^diropen_status_/) {
563: my $key = $_;
564: $key =~ s/^diropen_status_//;
565: $dirs{$key} = $hash{$_};
566: }
567: }
568:
569: if ($env{'form.openuri'}) { # take care of review and refresh options
570: my $uri=$env{'form.openuri'};
571: if (exists($hash{'diropen_status_'.$uri})) {
572: my $cursta = $hash{'diropen_status_'.$uri};
573: $dirs{$uri} = 'open';
574: $hash{'diropen_status_'.$uri} = 'open';
575: if ($cursta eq 'open') {
576: $dirs{$uri} = 'closed';
577: $hash{'diropen_status_'.$uri} = 'closed';
578: }
579: } else {
580: $hash{'diropen_status_'.$uri} = 'open';
581: $dirs{$uri} = 'open';
582: }
583: }
584:
585: my $toplevel;
586: my $indent = 0;
587: $uri = $uri.'/' if $uri !~ /.*\/$/;
588:
589: if ($env{'form.dirPointer'} ne 'on') {
590: $hash{'top.level'} = $uri;
591: $toplevel = $uri;
592: } else {
593: $toplevel = $hash{'top.level'};
594: }
595:
596: # -------------------------------- if not at top level, provide an uplink arrow
597: if ($toplevel ne '/res/'){
598: my (@uri_com) = split(/\//,$uri);
599: pop @uri_com;
600: my $upone = join('/',@uri_com);
601: my @list = qw (0);
602: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
603: $indent = 1;
604: }
605:
606: # -------- recursively go through all the directories and output as appropriate
607: &scanDir ($r,$toplevel,$indent,\%hash);
608:
609:
610: # -------------------------------------------------------------- end the tables
611: $r->print('</table>');
612: # ---------------------------- embed hidden information useful for group import
613: $r->print("<form name='fnum' action=''>");
614: $r->print("<input type='hidden' name='fnum' value='$fnum' /></form>");
615: # -------------------------------------------------------------- end the tables
616: $r->print('</td></tr></table>');
617:
618: # --------------------------------------------------- end the output and return
619: $r->print(&Apache::loncommon::end_page()."\n");
620: }
621: if(! $c->aborted()) {
622: # write back into the temporary file
623: my %dbfile;
624: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
625: while (my($key,$value) = each(%hash)) {
626: $dbfile{$key}=$value;
627: }
628: untie(%dbfile);
629: }
630: }
631:
632: return OK;
633: }
634:
635: # ----------------------------------------------- recursive scan of a directory
636: sub scanDir {
637: my ($r,$startdir,$indent,$hashref)=@_;
638: my $c = $r->connection();
639: my ($compuri,$curdir);
640: my $dirptr=16384;
641: my $obs;
642: $indent++;
643: my %dupdirs = %dirs;
644: my @list=&get_list($r,$startdir);
645: foreach my $line (@list) {
646: return if ($c->aborted());
647: #This is a kludge, sorry aboot this
648: my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
649: next if($strip =~ /.*\.meta$/ | $obs eq '1');
650: my (@fileparts) = split(/\./,$strip);
651: if ($hash{'display_attrs_9'} != 1) {
652: # if not all versions to be shown
653: if (scalar(@fileparts) >= 3) {
654: my $fext = pop @fileparts;
655: my $ov = pop @fileparts;
656: my $fname = join ('.',@fileparts,$fext);
657: next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
658: }
659: }
660:
661: if ($dom eq 'domain') {
662: # dom list has full path /res/<domain name>/ already
663: $curdir='';
664: $compuri = (split(/\&/,$line))[0];
665: } else {
666: # user, dir & file have name only, i.e., w/o path
667: $compuri = join('',$startdir,$strip,'/');
668: $curdir = $startdir;
669: }
670: my $diropen = 'closed';
671: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
672: while (my ($key,$val)= each %dupdirs) {
673: if ($key eq $compuri and $val eq "open") {
674: $diropen = "opened";
675: delete($dupdirs{$key});
676: delete($dirs{$key});
677: }
678: }
679: }
680: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
681: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
682: }
683: $indent--;
684: }
685:
686: # --------------- get complete matched list based on the uri (returns an array)
687: sub get_list {
688: my ($r,$uri)=@_;
689: my @list=();
690: (my $luri = $uri) =~ s/\//_/g;
691: if ($env{'form.updatedisplay'}) {
692: foreach (keys %hash) {
693: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
694: delete $hash{$_} if ($_ =~ /^dirlist_timestamp_files_/);
695: }
696: }
697:
698: if (defined($hash{'dirlist_files_'.$luri}) &&
699: $hash{'dirlist_timestamp_files_'.$luri}+600 > (time)) {
700: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
701: } elsif ($uri=~/\.(page|sequence)\/$/) {
702: # is a page or a sequence
703: $uri=~s/\/$//;
704: $uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
705: $uri=~s/\/+/\//g;
706: foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
707: my @ratpart=split(/\:/,$_);
708: push(@list,&LONCAPA::map::qtescape($ratpart[1]));
709: }
710: $hash{'dirlist_files_'.$luri} = join("\n",@list);
711: } else {
712: # is really a directory
713: @list = &Apache::lonnet::dirlist($uri);
714: $hash{'dirlist_files_'.$luri} = join("\n",@list);
715: $hash{'dirlist_timestamp_files_'.$luri} = time;
716: }
717: return @list=&match_ext($r,@list);
718: }
719:
720: sub dynmetaread {
721: my $uri=shift;
722: if (($hash{'display_attrs_8'}==1) || ($hash{'display_attrs_11'}==1)) {
723: # We don't want the filename
724: $uri=~s/\/[^\/]+$//;
725: # Did we already see this?
726: my $builddir=$uri;
727: while ($builddir) {
728: if ($dynread{$builddir}) {
729: return 0;
730: }
731: $builddir=~s/\/[^\/]+$//;
732: }
733: # Actually get the data
734: %dynhash=
735: (%dynhash,&Apache::lonmeta::get_dynamic_metadata_from_sql($uri.'/'));
736: # Remember that we got it
737: $dynread{$uri}=1;
738: }
739: }
740:
741: sub initdebug {
742: my $start_page=
743: &Apache::loncommon::start_page('Debug',undef,
744: {'only_body' => 1,});
745: $start_page =~ s/\n/ /g;
746: return <<ENDJS;
747: <script type="text/javascript">
748: var debugging = true;
749: if (debugging) {
750: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
751: }
752:
753: function output(text) {
754: if (debugging) {
755: debuggingWindow.document.writeln(text);
756: }
757: }
758: output('$start_page<pre>');
759: </script>
760: ENDJS
761: }
762:
763: sub writedebug {
764: my ($text) = @_;
765: return "<script type=\"text/javascript\">output('$text');</script>";
766: }
767:
768: # -------------------- filters out files based on extensions (returns an array)
769: sub match_ext {
770: my ($r,@packlist)=@_;
771: my @trimlist;
772: my $nextline;
773: my @fileext;
774: my $dirptr=16384;
775:
776: foreach my $line (@packlist) {
777: chomp $line;
778: $line =~ s/^\/home\/httpd\/html//;
779: my @unpackline = split (/\&/,$line);
780: next if ($unpackline[0] eq '.');
781: next if ($unpackline[0] eq '..');
782: my @filecom = split (/\./,$unpackline[0]);
783: my $fext = pop(@filecom);
784: my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
785: if ($fnptr == 0 and $unpackline[3] ne "") {
786: my $embstyle = &Apache::loncommon::fileembstyle($fext);
787: push @trimlist,$line if (defined($embstyle) &&
788: ($embstyle ne 'hdn' or $fext eq 'meta'));
789: } else {
790: push @trimlist,$line;
791: }
792: }
793: @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
794: return @trimlist;
795: }
796:
797: # ------------------------------- displays one line in appropriate table format
798: sub display_line {
799: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
800: my (@pathfn, $fndir);
801: # there could be relative paths (files actually belonging into this directory)
802: # or absolute paths (for example, from sequences)
803: my $absolute;
804: my $pathprefix;
805: if ($line=~m|^/res/| && $startdir ne '') {
806: $absolute=1;
807: $pathprefix='';
808: } else {
809: $absolute=0;
810: $pathprefix=$startdir;
811: }
812: my $dirptr=16384;
813: my $fileclr="#ffffe6";
814: my $iconpath= $r->dir_config('lonIconsURL') . '/';
815:
816: my @filecom = split (/\&/,$line);
817: my @pathcom = split (/\//,$filecom[0]);
818: my $listname = $pathcom[scalar(@pathcom)-1];
819: my $fnptr = $filecom[3]&$dirptr;
820: my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
821: $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
822:
823: my $tabtag='</td>';
824: my $i=0;
825: while ($i<=11) {
826: $tabtag=join('',$tabtag,"<td> </td>")
827: if ($i != 9 &&
828: $hash{'display_attrs_'.$i} == 1);
829: $i++;
830: }
831: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
832:
833: # display uplink arrow
834: if ($filecom[1] eq 'viewOneUp') {
835: my $updir=$startdir;
836: # -------------- Filter out sequence containment in crumbs and "recent folders"
837: $updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
838: $updir=~s/\/+/\//g;
839:
840: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
841: $r->print("<td>\n");
842: $r->print ('<form method="post" name="dirpathUP" action="'.$updir.
843: '/" '.
844: 'onSubmit="return rep_dirpath(\'UP\','.
845: 'document.forms.fileattr.acts.value)" '.
846: 'enctype="application/x-www-form-urlencoded"'.
847: '>'."\n");
848: $r->print ('<input type=hidden name=openuri value="'.
849: $startdir.'" />'."\n");
850: $r->print ('<input type="hidden" name="acts" value="" />'."\n");
851: $r->print ('<input src="'.$iconpath.'arrow_up.gif"');
852: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
853: "\n");
854: $r->print(&mt("Up")."</form>$tabtag</tr>\n");
855: return OK;
856: }
857: # Do we have permission to look at this?
858:
859: if($filecom[15] ne '1') { return OK if (!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])); }
860:
861: # make absolute links appear on different background
862: if ($absolute) { $fileclr='#ccdd99'; }
863:
864: # display domain
865: if ($filecom[1] eq 'domain') {
866: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n")
867: if ($env{'form.dirPointer'} eq "on");
868: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
869: $r->print("<td>");
870: &begin_form ($r,$filecom[0]);
871: my $anchor = $filecom[0];
872: $anchor =~ s/\W//g;
873: $r->print ('<a name="'.$anchor.'"></a>');
874: $r->print ('<input type="hidden" name="acts" value="" />');
875: $r->print ('<input src="'.$iconpath.'folder_pointer_'.
876: $diropen.'.gif"');
877: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
878: "\n");
879: my $quotable_filecom = &Apache::loncommon::escape_single($filecom[0]);
880: $r->print ('<a href="javascript:gothere(\''.$quotable_filecom.
881: '\')"><img alt="" src="'.$iconpath.'server.gif"');
882: $r->print (' class="LC_icon" /></a>'."\n");
883: $r->print (&mt("Domain")." - $listname ");
884: if (&Apache::lonnet::domain($listname,'description')) {
885: $r->print("(".&Apache::lonnet::domain($listname,'description').
886: ")");
887: }
888: $r->print ("</form>$tabtag</tr>\n");
889: return OK;
890:
891: # display user directory
892: }
893: if ($filecom[1] eq 'user') {
894: # $r->print("<tr valign=$valign bgcolor=\"$fileclr\">$extrafield");
895: my $curdir = $startdir.$filecom[0].'/';
896: my $anchor = $curdir;
897: $anchor =~ s/\W//g;
898: $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
899: &begin_form ($r,$curdir);
900: $r->print ('<a name="'.$anchor.'"></a><img alt="" src="'.$iconpath.
901: 'whitespace1.gif" class="LC_icon" />'."\n");
902: $r->print ('<input type="hidden" name="acts" value="" />');
903: $r->print ('<input src="'.$iconpath.'folder_pointer_'.$diropen.
904: '.gif"');
905: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
906: "\n");
907: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
908: $r->print ('<a href="javascript:gothere(\''.$quotable_curdir
909: .'\')"><img alt="'.$msg.'" src="'.
910: $iconpath.'quill.gif" class="LC_indexer_icon" /></a>');
911: my $domain=(split(m|/|,$startdir))[2];
912: my $plainname=&Apache::loncommon::plainname($listname,$domain);
913: $r->print ($listname);
914: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
915: $r->print ('</form>'.$tabtag.'</tr>'."\n");
916: return OK;
917: }
918:
919: # display file
920: if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
921: my $title;
922: my $filelink = $pathprefix.$filecom[0];
923: if ($hash{'display_attrs_0'} == 1) {
924: my $title = &Apache::lonnet::gettitle($filelink,'title');
925: }
926: my @file_ext = split (/\./,$listname);
927: my $curfext = $file_ext[-1];
928: if (@Omit) {
929: foreach (@Omit) { return OK if ($curfext eq $_); }
930: }
931: if (@Only) {
932: my $skip = 1;
933: foreach (@Only) { $skip = 0 if ($curfext eq $_); }
934: return OK if ($skip > 0);
935: }
936: # Set the icon for the file
937: my $iconname = &Apache::loncommon::icon($listname);
938: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\"><td nowrap='nowrap' valign='top'>");
939:
940: if ($env{'form.catalogmode'} eq 'interactive') {
941: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
942: $r->print("<a href=\"javascript:select_data(\'",
943: $quotable_filelink,"')\">");
944: $r->print("<img alt=\"\" src='",$iconpath,"select.gif' class='LC_icon' /></a>".
945: "\n");
946: $r->print("</td><td nowrap='nowrap' valign='top'>");
947: } elsif ($env{'form.catalogmode'} eq 'import') {
948: $r->print("<form name='form$fnum' action=''>\n");
949: $r->print("<input type='checkbox' name='filelink"."' ".
950: "value='$filelink' onClick='".
951: "javascript:queue(\"form$fnum\")' ");
952: if ($hash{'store_'.$filelink}) {
953: $r->print("checked");
954: }
955: $r->print(" />\n");
956: $r->print("</form></td><td nowrap='nowrap' valign='top'>");
957: $hash{"pre_${fnum}_link"}=$filelink;
958: $hash{"pre_${fnum}_title"}=$title;
959: if (!$hash{"pre_${fnum}_title"}) {
960: $hash{"pre_${fnum}_title"} = 'Untitled';
961: }
962: $fnum++;
963: }
964: # Form to open or close sequences
965: if ($filelink=~/\.(page|sequence)$/) {
966: my $curdir = $startdir.$filecom[0].'/';
967: &begin_form($r,$curdir);
968: $indent--;
969: }
970: # General indentation
971: if ($indent > 0 and $indent < 11) {
972: $r->print("<img alt=\"\" src='",$iconpath,"whitespace",$indent,
973: ".gif' class='LC_icon' />\n");
974: } elsif ($indent >0) {
975: my $ten = int($indent/10.);
976: my $rem = $indent%10.0;
977: my $count = 0;
978: while ($count < $ten) {
979: $r->print("<img alt=\"\" src=".$iconpath.
980: "whitespace10.gif class='LC_icon' />\n");
981: $count++;
982: }
983: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
984: ".gif class='LC_icon' />\n") if $rem > 0;
985: }
986: # Sequence open/close icon
987: if ($filelink=~/\.(page|sequence)$/) {
988: my $curdir = $startdir.$filecom[0].'/';
989: my $anchor = $curdir;
990: $anchor =~ s/\W//g;
991: $r->print ('<input type="hidden" name="acts" value="" />');
992: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
993: 'folder_pointer_'.$diropen.'.gif"');
994: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
995: "\n");
996: }
997: # Filetype icons
998: $r->print("<img alt=\"\" src='$iconname' class='LC_icon' />\n");
999: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
1000:
1001:
1002: $r->print (" <a href=\"javascript:openWindow('".$quotable_filelink.
1003: "','previewfile','450','500','no','yes','yes');\"".
1004: " target=\"_self\">$listname</a> ");
1005:
1006: $r->print (" (<a href=\"javascript:openWindow('".$quotable_filelink.
1007: ".meta','metadatafile','500','550','no','yes','no');\" ".
1008: " target=\"_self\">metadata</a>) ");
1009: # Close form to open/close sequence
1010: if ($filelink=~/\.(page|sequence)$/) {
1011: $r->print('</form>');
1012: }
1013: $r->print("</td>\n");
1014: if ($hash{'display_attrs_0'} == 1) {
1015: $r->print('<td> '.($title eq '' ? ' ' : $title).
1016: ' </td>'."\n");
1017: }
1018: $r->print('<td align=right> ',
1019: $filecom[8]," </td>\n")
1020: if $hash{'display_attrs_1'} == 1;
1021: $r->print('<td> '.
1022: (localtime($filecom[9]))." </td>\n")
1023: if $hash{'display_attrs_2'} == 1;
1024: $r->print('<td> '.
1025: (localtime($filecom[10]))." </td>\n")
1026: if $hash{'display_attrs_3'} == 1;
1027:
1028: if ($hash{'display_attrs_4'} == 1) {
1029: my $author = &Apache::lonnet::metadata($filelink,'author');
1030: $r->print('<td> '.($author eq '' ? ' ' : $author).
1031: " </td>\n");
1032: }
1033: if ($hash{'display_attrs_5'} == 1) {
1034: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1035: # $keywords = ' ' if (!$keywords);
1036: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1037: " </td>\n");
1038: }
1039: #'
1040:
1041: if ($hash{'display_attrs_6'} == 1) {
1042: my $lang = &Apache::lonnet::metadata($filelink,'language');
1043: $lang = &Apache::loncommon::languagedescription($lang);
1044: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1045: " </td>\n");
1046: }
1047: if ($hash{'display_attrs_8'} == 1) {
1048: # statistics
1049: &dynmetaread($filelink);
1050: $r->print("<td>");
1051: &dynmetaprint($r,$filelink,'count');
1052: &dynmetaprint($r,$filelink,'course');
1053: &dynmetaprint($r,$filelink,'stdno');
1054: &dynmetaprint($r,$filelink,'avetries');
1055: &dynmetaprint($r,$filelink,'difficulty');
1056: &dynmetaprint($r,$filelink,'disc');
1057: &dynmetaprint($r,$filelink,'clear');
1058: &dynmetaprint($r,$filelink,'technical');
1059: &dynmetaprint($r,$filelink,'correct');
1060: &dynmetaprint($r,$filelink,'helpful');
1061: &dynmetaprint($r,$filelink,'depth');
1062: $r->print(" </td>\n");
1063:
1064: }
1065: if ($hash{'display_attrs_10'} == 1) {
1066: my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
1067: if($source eq 'open') {
1068: my $sourcelink = &Apache::lonsource::make_link($filelink,$listname);
1069: my $quotable_sourcelink = &Apache::loncommon::escape_single($sourcelink);
1070: $r->print('<td>'."<a href=\"javascript:openWindow('"
1071: .$quotable_sourcelink.
1072: "', 'previewsource', '700', '700', 'no', 'yes','yes');\"".
1073: " target=\"_self\">Yes</a> "."</td>\n");
1074: } else { #A cuddled else. :P
1075: $r->print("<td> </td>\n");
1076: }
1077: }
1078: if ($hash{'display_attrs_11'} == 1) {
1079: # links
1080: &dynmetaread($filelink);
1081: $r->print('<td>');
1082: &coursecontext($r,$filelink);
1083: &dynmetaprint($r,$filelink,'goto_list');
1084: &dynmetaprint($r,$filelink,'comefrom_list');
1085: &dynmetaprint($r,$filelink,'sequsage_list');
1086: &dynmetaprint($r,$filelink,'dependencies');
1087: &dynmetaprint($r,$filelink,'course_list');
1088: $r->print('</td>');
1089: }
1090: if ($hash{'display_attrs_7'} == 1) {
1091: # Show resource
1092: my $output=&showpreview($filelink);
1093: $r->print('<td> '.($output eq '' ? ' ':$output).
1094: " </td>\n");
1095: }
1096: $r->print("</tr>\n");
1097: }
1098:
1099: # -- display directory
1100: if ($fnptr == $dirptr) {
1101: my $curdir = $startdir.$filecom[0].'/';
1102: my $anchor = $curdir;
1103: $anchor =~ s/\W//g;
1104: $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
1105: &begin_form ($r,$curdir);
1106: my $indentm1 = $indent-1;
1107: if ($indentm1 < 11 and $indentm1 > 0) {
1108: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$indentm1,
1109: ".gif class='LC_icon' />\n");
1110: } else {
1111: my $ten = int($indentm1/10.);
1112: my $rem = $indentm1%10.0;
1113: my $count = 0;
1114: while ($count < $ten) {
1115: $r->print ("<img alt=\"\" src=",$iconpath
1116: ,"whitespace10.gif class='LC_icon' />\n");
1117: $count++;
1118: }
1119: $r->print ("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
1120: ".gif class='LC_icon' />\n") if $rem > 0;
1121: }
1122: $r->print ('<input type="hidden" name="acts" value="" />');
1123: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
1124: 'folder_pointer_'.$diropen.'.gif"');
1125: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
1126: "\n");
1127: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
1128: $r->print ('<a href="javascript:gothere(\''
1129: .$quotable_curdir.'\')">'
1130: .'<img alt="'.&mt('Open Folder').'"src="'.
1131: $iconpath.'folder_'.$diropen.'.gif" class="LC_icon" /></a>'.
1132: "\n");
1133: $r->print ("$listname</form></td>\n");
1134: # Attributes
1135: my $filelink = $startdir.$filecom[0].'/default';
1136:
1137: if ($hash{'display_attrs_0'} == 1) {
1138: my $title = &Apache::lonnet::gettitle($filelink,'title');
1139: $r->print('<td> '.($title eq '' ? ' ' : $title).
1140: ' </td>'."\n");
1141: }
1142: $r->print('<td align=right> ',
1143: $filecom[8]," </td>\n")
1144: if $hash{'display_attrs_1'} == 1;
1145: $r->print('<td> '.
1146: (localtime($filecom[9]))." </td>\n")
1147: if $hash{'display_attrs_2'} == 1;
1148: $r->print('<td> '.
1149: (localtime($filecom[10]))." </td>\n")
1150: if $hash{'display_attrs_3'} == 1;
1151:
1152: if ($hash{'display_attrs_4'} == 1) {
1153: my $author = &Apache::lonnet::metadata($filelink,'author');
1154: $r->print('<td> '.($author eq '' ? ' ' : $author).
1155: " </td>\n");
1156: }
1157: if ($hash{'display_attrs_5'} == 1) {
1158: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1159: # $keywords = ' ' if (!$keywords);
1160: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1161: " </td>\n");
1162: }
1163: if ($hash{'display_attrs_6'} == 1) {
1164: my $lang = &Apache::lonnet::metadata($filelink,'language');
1165: $lang = &Apache::loncommon::languagedescription($lang);
1166: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1167: " </td>\n");
1168: }
1169: if ($hash{'display_attrs_8'} == 1) {
1170: $r->print('<td> </td>');
1171: }
1172: if ($hash{'display_attrs_10'} == 1) {
1173: $r->print('<td> </td>');
1174: }
1175: if ($hash{'display_attrs_11'} == 1) {
1176: $r->print('<td> </td>');
1177: }
1178: if ($hash{'display_attrs_7'} == 1) {
1179: $r->print('<td> </td>');
1180: }
1181: $r->print('</tr>');
1182: }
1183:
1184: }
1185:
1186: sub coursecontext {
1187: my ($r,$filelink)=@_;
1188: my $filesymb=&Apache::lonnet::symbread($filelink);
1189: if ($filesymb) {
1190: my ($map,$index,$resource)=&Apache::lonnet::decode_symb($filesymb);
1191: $r->print(&mt('Already in this course:<br />[_1] in folder/map [_2].<br />',
1192: &Apache::lonnet::gettitle($resource),
1193: &Apache::lonnet::gettitle($map)));
1194: }
1195: }
1196:
1197: sub showpreview {
1198: my ($filelink)=@_;
1199: if ($filelink=~m-^(/ext/|http://)-) {
1200: return &mt('External Resource, preview not enabled');
1201: }
1202: my ($curfext)=($filelink=~/\.(\w+)$/);
1203: my $output='';
1204: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
1205: if ($embstyle eq 'ssi') {
1206: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
1207: '.tmp';
1208: if ((!$env{'form.updatedisplay'}) &&
1209: (-e $cache)) {
1210: open(FH,$cache);
1211: $output=join("\n",<FH>);
1212: close(FH);
1213: } else {
1214: # In update display mode, remove old cache. This is done to retroactively
1215: # clean up course context renderings.
1216: if (-e $cache) {
1217: unlink($cache);
1218: }
1219: $output=&Apache::lonnet::ssi_body($filelink);
1220: # Is access denied? Don't render, don't store
1221: if ($output=~/LONCAPAACCESSCONTROLERRORSCREEN/s) {
1222: $output='';
1223: # Was this rendered in course content? Don't store
1224: } elsif (!&Apache::lonnet::symbread($filelink)) {
1225: open(FH,">$cache");
1226: print FH $output;
1227: close(FH);
1228: }
1229: }
1230: $output='<font size="-2">'.$output.'</font>';
1231: } elsif ($embstyle eq 'img') {
1232: $output='<img alt="'.&mt('Preview').'" src="'.$filelink.'" />';
1233: } elsif ($filelink=~m{^/res/($match_domain)/($match_username)/}) {
1234: $output='<img alt="'.&mt('Preview').'" src="http://'.
1235: &Apache::lonnet::hostname(&Apache::lonnet::homeserver($2,$1)).
1236: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1237: }
1238: return $output;
1239: }
1240:
1241: sub dynmetaprint {
1242: my ($r,$filelink,$item)=@_;
1243: if ($dynhash{$filelink}->{$item}) {
1244: $r->print("\n<br />".$fieldnames{$item}.': '.
1245: &Apache::lonmeta::prettyprint($item,
1246: $dynhash{$filelink}->{$item},
1247: (($env{'form.catalogmode'} ne 'import')?'preview':''),
1248: '',
1249: (($env{'form.catalogmode'} eq 'import')?'document.forms.fileattr':''),1));
1250: }
1251: }
1252:
1253: # ------------------- prints the beginning of a form for directory or file link
1254: sub begin_form {
1255: my ($r,$uri) = @_;
1256: my $anchor = $uri;
1257: $anchor =~ s/\W//g;
1258: $uri=&Apache::loncommon::escape_single($uri);
1259: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1260: '#'.$anchor.
1261: '" onSubmit="return rep_dirpath(\''.$dnum.'\''.
1262: ',document.forms.fileattr.acts.value)" '.
1263: 'enctype="application/x-www-form-urlencoded">'."\n");
1264: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'" />'.
1265: "\n");
1266: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n");
1267: $dnum++;
1268: }
1269:
1270: # --------- settings whenever the user causes the indexer window to be launched
1271: sub start_fresh_session {
1272: my ($hash) = @_;
1273: delete $hash->{'form.catalogmode'};
1274: delete $hash->{'form.mode'};
1275: delete $hash->{'form.form'};
1276: delete $hash->{'form.element'};
1277: delete $hash->{'form.omit'};
1278: delete $hash->{'form.only'};
1279: foreach (keys %{$hash}) {
1280: delete $hash->{$_} if (/^(pre_|store)/);
1281: }
1282: }
1283:
1284: # ------------------------------------------------------------------- setvalues
1285: sub setvalues {
1286: # setvalues is used in registerurl to synchronize the database
1287: # hash and environment hashes
1288: my ($H1,$h1key,$H2,$h2key) =@_;
1289: #
1290: if (exists $H2->{$h2key}) {
1291: $H1->{$h1key} = $H2->{$h2key};
1292: } elsif (exists $H1->{$h1key}) {
1293: $H2->{$h2key} = $H1->{$h1key};
1294: }
1295: }
1296:
1297: 1;
1298:
1299: sub cleanup {
1300: if (tied(%hash)){
1301: &Apache::lonnet::logthis('Cleanup indexer: hash');
1302: }
1303: return OK;
1304: }
1305:
1306:
1307:
1308:
1309:
1310: =head1 NAME
1311:
1312: Apache::lonindexer - mod_perl module for cross server filesystem browsing
1313:
1314: =head1 SYNOPSIS
1315:
1316: Invoked by /etc/httpd/conf/srm.conf:
1317:
1318: <LocationMatch "^/res.*/$">
1319: SetHandler perl-script
1320: PerlHandler Apache::lonindexer
1321: </LocationMatch>
1322:
1323: =head1 INTRODUCTION
1324:
1325: This module enables a scheme of browsing across a cross server.
1326:
1327: This is part of the LearningOnline Network with CAPA project
1328: described at http://www.lon-capa.org.
1329:
1330: =head1 BEGIN SUBROUTINE
1331:
1332: This routine is only run once after compilation.
1333:
1334: =over 4
1335:
1336: =item *
1337:
1338: Initializes %language hash table.
1339:
1340: =back
1341:
1342: =head1 HANDLER SUBROUTINE
1343:
1344: This routine is called by Apache and mod_perl.
1345:
1346: =over 4
1347:
1348: =item *
1349:
1350: read in machine configuration variables
1351:
1352: =item *
1353:
1354: see if called from an interactive mode
1355:
1356: =item *
1357:
1358: refresh environment with user database values (in %hash)
1359:
1360: =item *
1361:
1362: define extra fields and buttons in case of special mode
1363:
1364: =item *
1365:
1366: set catalogmodefunctions to have extra needed javascript functionality
1367:
1368: =item *
1369:
1370: print header
1371:
1372: =item *
1373:
1374: evaluate actions from previous page (both cumulatively and chronologically)
1375:
1376: =item *
1377:
1378: output title
1379:
1380: =item *
1381:
1382: get state of file attributes to be showing
1383:
1384: =item *
1385:
1386: output state of file attributes to be showing
1387:
1388: =item *
1389:
1390: output starting row to the indexed file/directory hierarchy
1391:
1392: =item *
1393:
1394: read in what directories have previously been set to "open"
1395:
1396: =item *
1397:
1398: if not at top level, provide an uplink arrow
1399:
1400: =item *
1401:
1402: recursively go through all the directories and output as appropriate
1403:
1404: =item *
1405:
1406: information useful for group import
1407:
1408: =item *
1409:
1410: end the tables
1411:
1412: =item *
1413:
1414: end the output and return
1415:
1416: =back
1417:
1418: =head1 OTHER SUBROUTINES
1419:
1420: =over 4
1421:
1422: =item *
1423:
1424: scanDir - recursive scan of a directory
1425:
1426: =item *
1427:
1428: get_list - get complete matched list based on the uri (returns an array)
1429:
1430: =item *
1431:
1432: match_ext - filters out files based on extensions (returns an array)
1433:
1434: =item *
1435:
1436: display_line - displays one line in appropriate table format
1437:
1438: =item *
1439:
1440: begin_form - prints the beginning of a form for directory or file link
1441:
1442: =item *
1443:
1444: start_fresh_session - settings whenever the user causes the indexer window
1445: to be launched
1446:
1447: =back
1448:
1449: =cut
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to lonindexer.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / interface