1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.168 2007/07/02 16:07:06 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: $catalogmodefunctions
352: function checkAll() {
353: var numForms = document.forms.length;
354: for (i=0;i<numForms;i++) {
355: var numElements = document.forms[i].elements.length;
356: for (j=0;j<numElements;j++){
357: var fieldName = document.forms[i].elements[j].name;
358: if (fieldName == 'filelink') {
359: document.forms[i].elements[j].checked = true;
360: queue(document.forms[i].name);
361: }
362: }
363: }
364: }
365: function uncheckAll() {
366: var numForms = document.forms.length;
367: for (i=0;i<numForms;i++) {
368: var numElements = document.forms[i].elements.length;
369: for (j=0;j<numElements;j++){
370: var fieldName = document.forms[i].elements[j].name;
371: if (fieldName == 'filelink') {
372: document.forms[i].elements[j].checked = false;
373: queue(document.forms[i].name);
374: }
375: }
376: }
377: }
378: function openWindow(url, wdwName, w, h, toolbar,scrollbar,locationbar) {
379: var xpos = (screen.width-w)/2;
380: xpos = (xpos < 0) ? '0' : xpos;
381: var ypos = (screen.height-h)/2-30;
382: ypos = (ypos < 0) ? '0' : ypos;
383: var options = "width=" + w + ",height=" + h + ",screenx="+xpos+",screeny="+ypos+",";
384: options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
385: options += "menubar=no,toolbar="+toolbar+",location="+locationbar+",directories=no";
386: var newWin = window.open(url, wdwName, options);
387: newWin.focus();
388: }
389: function gothere(val) {
390: window.location=val+'?acts='+document.forms.fileattr.acts.value;
391: }
392: </script>
393: ENDHEADER
394:
395: my ($headerdom)=($uri=~m{^/res/($match_domain)/});
396: $r->print(&Apache::loncommon::start_page('Browse Resources',$js,
397: {'domain' => $headerdom,}));
398: # - Evaluate actions from previous page (both cumulatively and chronologically)
399: if ($env{'form.catalogmode'} eq 'import') {
400: my $acts=$env{'form.acts'};
401: my @Acts=split(/b/,$acts);
402: my %ahash;
403: my %achash;
404: my $ac=0;
405: # some initial hashes for working with data
406: foreach (@Acts) {
407: my ($state,$ref)=split(/a/);
408: $ahash{$ref}=$state;
409: $achash{$ref}=$ac;
410: $ac++;
411: }
412: # sorting through the actions and changing the global database hash
413: foreach my $key (sort {$achash{$a}<=>$achash{$b}} (keys %ahash)) {
414: if ($ahash{$key} eq '1') {
415: $hash{'store_'.$hash{'pre_'.$key.'_link'}}=
416: $hash{'pre_'.$key.'_title'};
417: $hash{'storectr_'.$hash{'pre_'.$key.'_link'}}=
418: $hash{'storectr'}+0;
419: $hash{'storectr'}++;
420: }
421: if ($ahash{$key} eq '0') {
422: if ($hash{'store_'.$hash{'pre_'.$key.'_link'}}) {
423: delete $hash{'store_'.$hash{'pre_'.$key.'_link'}};
424: }
425: }
426: }
427: # deleting the previously cached listing
428: foreach (keys %hash) {
429: if ($_ =~ /^pre_/ && $_ =~/link$/) {
430: my $key = $_;
431: $key =~ s/^pre_//;
432: $key =~ s/_[^_]*$//;
433: delete $hash{'pre_'.$key.'_title'};
434: delete $hash{'pre_'.$key.'_link'};
435: }
436: }
437: }
438:
439: # ---------------------------------- get state of file attributes to be showing
440: if ($env{'form.attrs'}) {
441: for (my $i=0; $i<=11; $i++) {
442: delete $hash{'display_attrs_'.$i};
443: if ($env{'form.attr'.$i} == 1) {
444: $attrchk[$i] = 'checked';
445: $hash{'display_attrs_'.$i} = 1;
446: }
447: }
448: } else {
449: for (my $i=0; $i<=11; $i++) {
450: $attrchk[$i] = 'checked' if $hash{'display_attrs_'.$i} == 1;
451: }
452: }
453:
454: # ------------------------------- output state of file attributes to be showing
455: # All versions has to the last item
456: # since it does not take an extra col
457: my %lt=&Apache::lonlocal::texthash(
458: 'ti' => 'Title',
459: 'si' => 'Size',
460: 'la' => 'Last access',
461: 'lm' => 'Last modified',
462: 'st' => 'Statistics',
463: 'au' => 'Author',
464: 'kw' => 'Keywords',
465: 'ln' => 'Language',
466: 'sa' => 'Source Available',
467: 'sr' => 'Show resource',
468: 'li' => 'Linked/Related Resources',
469: 'av' => 'All versions',
470: 'ud' => 'Update Display'
471: );
472: $r->print(<<END);
473: <form method="post" name="fileattr" action="$uri"
474: enctype="application/x-www-form-urlencoded">
475: <label><input type="checkbox" name="attr9" value="1" $attrchk[9] onClick="this.form.submit();" /> $lt{'av'}</label>
476: <table border="0">
477: <tr>
478: <td><label><input type="checkbox" name="attr0" value="1" $attrchk[0] onClick="this.form.submit();" /> $lt{'ti'}</label></td>
479: <td><label><input type="checkbox" name="attr4" value="1" $attrchk[4] onClick="this.form.submit();" /> $lt{'au'}</label></td>
480: <td><label><input type="checkbox" name="attr5" value="1" $attrchk[5] onClick="this.form.submit();" /> $lt{'kw'}</label></td>
481: <td><label><input type="checkbox" name="attr6" value="1" $attrchk[6] onClick="this.form.submit();" /> $lt{'ln'}</label></td>
482: </tr>
483: <tr>
484: <td><label><input type="checkbox" name="attr1" value="1" $attrchk[1] onClick="this.form.submit();" /> $lt{'si'}</label></td>
485: <td><label><input type="checkbox" name="attr2" value="1" $attrchk[2] onClick="this.form.submit();" /> $lt{'la'}</label></td>
486: <td><label><input type="checkbox" name="attr3" value="1" $attrchk[3] onClick="this.form.submit();" /> $lt{'lm'}</label></td>
487: <td><label><input type="checkbox" name="attr10" value="1" $attrchk[10] onClick="this.form.submit();" /> $lt{'sa'}</label></td>
488: </tr>
489: <tr>
490: <td><label><input type="checkbox" name="attr8" value="1" $attrchk[8] onClick="this.form.submit();" /> $lt{'st'}</label></td>
491: <td><label><input type="checkbox" name="attr11" value="1" $attrchk[11] onClick="this.form.submit();" /> $lt{'li'}</label></td>
492: <td><label><input type="checkbox" name="attr7" value="1" $attrchk[7] onClick="this.form.submit();" /> $lt{'sr'}</label></td>
493: <td> </td>
494: </tr>
495: </table>
496: <input type="hidden" name="attrs" value="1" />
497: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
498: <input type="hidden" name="acts" value="" />
499: $closebutton $groupimportbutton
500: END
501: # -------------- Filter out sequence containment in crumbs and "recent folders"
502: my $storeuri=$uri;
503: $storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
504: $storeuri=~s/\/+/\//g;
505: # ---------------------------------------------------------------- Bread crumbs
506: $r->print(&Apache::lonhtmlcommon::crumbs($storeuri,'','',
507: (($env{'form.catalogmode'} eq 'import')?
508: 'document.forms.fileattr':'')).
509: &Apache::lonhtmlcommon::select_recent('residx','resrecent',
510: '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();'));
511: # -------------------------------------------------------- Resource Home Button
512: my $reshome=$env{'course.'.$env{'request.course.id'}.'.reshome'};
513: if ($reshome) {
514: $r->print("<font size='+2'><a href='");
515: if ($env{'form.catalogmode'} eq 'import') {
516: $r->print('javascript:document.forms.fileattr.action="'.$reshome.'";document.forms.fileattr.submit();');
517: } else {
518: $r->print($reshome);
519: }
520: $r->print("'>".&mt('Home').'</a></font>');
521: }
522: $r->print('</form>');
523: # ------------------------------------------------------ Remember where we were
524: &Apache::loncommon::storeresurl($storeuri);
525: &Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
526: # -------------------------------------------------- Check All and Uncheck all
527: $r->print('<br /><input type="button" value="'.&mt("Check All").'" id="checkallbutton" onClick="javascript:checkAll()" />');
528: $r->print('<input type="button" value="'.&mt("Uncheck All").'" id="uncheckallbutton" onClick="javascript:uncheckAll()" />');
529: # ----------------- output starting row to the indexed file/directory hierarchy
530: my $titleclr="#ddffff";
531: #$r->print(&initdebug());
532: #$r->print(&writedebug("Omit:@Omit")) if (@Omit);
533: #$r->print(&writedebug("Only:@Only")) if (@Only);
534: $r->print('<table width="100%" border="0"><tr><td bgcolor="#777777">'."\n");
535: $r->print('<table width="100%" border="0"><tr bgcolor="'.$titleclr.'">'."\n");
536: $r->print("<td $colspan><b>".&mt('Name')."</b></td>\n");
537: $r->print("<td><b>".&mt('Title')."</b></td>\n")
538: if ($hash{'display_attrs_0'} == 1);
539: $r->print("<td align=right><b>".&mt("Size")." (".&mt("bytes").") ".
540: "</b></td>\n") if ($hash{'display_attrs_1'} == 1);
541: $r->print("<td><b>".&mt("Last accessed")."</b></td>\n")
542: if ($hash{'display_attrs_2'} == 1);
543: $r->print("<td><b>".&mt("Last modified")."</b></td>\n")
544: if ($hash{'display_attrs_3'} == 1);
545: $r->print("<td><b>".&mt("Author(s)")."</b></td>\n")
546: if ($hash{'display_attrs_4'} == 1);
547: $r->print("<td><b>".&mt("Keywords")."</b></td>\n")
548: if ($hash{'display_attrs_5'} == 1);
549: $r->print("<td><b>".&mt("Language")."</b></td>\n")
550: if ($hash{'display_attrs_6'} == 1);
551: $r->print("<td><b>".&mt("Usage Statistics")." <br />(".
552: &mt("Courses/Network Hits").")</b> ".&mt('updated periodically')."</td>\n")
553: if ($hash{'display_attrs_8'} == 1);
554: $r->print("<td><b>".&mt("Source Available")."</b></td>\n")
555: if ($hash{'display_attrs_10'} == 1);
556: $r->print("<td><b>".&mt("Linked/Related Resources")."</b></td>\n")
557: if ($hash{'display_attrs_11'} == 1);
558: $r->print("<td><b>".&mt("Resource")."</b></td>\n")
559: if ($hash{'display_attrs_7'} == 1);
560: $r->print('</tr>');
561:
562: # ----------------- read in what directories have previously been set to "open"
563: foreach (keys %hash) {
564: if ($_ =~ /^diropen_status_/) {
565: my $key = $_;
566: $key =~ s/^diropen_status_//;
567: $dirs{$key} = $hash{$_};
568: }
569: }
570:
571: if ($env{'form.openuri'}) { # take care of review and refresh options
572: my $uri=$env{'form.openuri'};
573: if (exists($hash{'diropen_status_'.$uri})) {
574: my $cursta = $hash{'diropen_status_'.$uri};
575: $dirs{$uri} = 'open';
576: $hash{'diropen_status_'.$uri} = 'open';
577: if ($cursta eq 'open') {
578: $dirs{$uri} = 'closed';
579: $hash{'diropen_status_'.$uri} = 'closed';
580: }
581: } else {
582: $hash{'diropen_status_'.$uri} = 'open';
583: $dirs{$uri} = 'open';
584: }
585: }
586:
587: my $toplevel;
588: my $indent = 0;
589: $uri = $uri.'/' if $uri !~ /.*\/$/;
590:
591: if ($env{'form.dirPointer'} ne 'on') {
592: $hash{'top.level'} = $uri;
593: $toplevel = $uri;
594: } else {
595: $toplevel = $hash{'top.level'};
596: }
597:
598: # -------------------------------- if not at top level, provide an uplink arrow
599: if ($toplevel ne '/res/'){
600: my (@uri_com) = split(/\//,$uri);
601: pop @uri_com;
602: my $upone = join('/',@uri_com);
603: my @list = qw (0);
604: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
605: $indent = 1;
606: }
607:
608: # -------- recursively go through all the directories and output as appropriate
609: &scanDir ($r,$toplevel,$indent,\%hash);
610:
611:
612: # -------------------------------------------------------------- end the tables
613: $r->print('</table>');
614: # ---------------------------- embed hidden information useful for group import
615: $r->print("<form name='fnum' action=''>");
616: $r->print("<input type='hidden' name='fnum' value='$fnum' /></form>");
617: # -------------------------------------------------------------- end the tables
618: $r->print('</td></tr></table>');
619:
620: # --------------------------------------------------- end the output and return
621: $r->print(&Apache::loncommon::end_page()."\n");
622: }
623: if(! $c->aborted()) {
624: # write back into the temporary file
625: my %dbfile;
626: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
627: while (my($key,$value) = each(%hash)) {
628: $dbfile{$key}=$value;
629: }
630: untie(%dbfile);
631: }
632: }
633:
634: return OK;
635: }
636:
637: # ----------------------------------------------- recursive scan of a directory
638: sub scanDir {
639: my ($r,$startdir,$indent,$hashref)=@_;
640: my $c = $r->connection();
641: my ($compuri,$curdir);
642: my $dirptr=16384;
643: my $obs;
644: $indent++;
645: my %dupdirs = %dirs;
646: my @list=&get_list($r,$startdir);
647: foreach my $line (@list) {
648: return if ($c->aborted());
649: #This is a kludge, sorry aboot this
650: my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
651: next if($strip =~ /.*\.meta$/ | $obs eq '1');
652: my (@fileparts) = split(/\./,$strip);
653: if ($hash{'display_attrs_9'} != 1) {
654: # if not all versions to be shown
655: if (scalar(@fileparts) >= 3) {
656: my $fext = pop @fileparts;
657: my $ov = pop @fileparts;
658: my $fname = join ('.',@fileparts,$fext);
659: next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
660: }
661: }
662:
663: if ($dom eq 'domain') {
664: # dom list has full path /res/<domain name>/ already
665: $curdir='';
666: $compuri = (split(/\&/,$line))[0];
667: } else {
668: # user, dir & file have name only, i.e., w/o path
669: $compuri = join('',$startdir,$strip,'/');
670: $curdir = $startdir;
671: }
672: my $diropen = 'closed';
673: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
674: while (my ($key,$val)= each %dupdirs) {
675: if ($key eq $compuri and $val eq "open") {
676: $diropen = "opened";
677: delete($dupdirs{$key});
678: delete($dirs{$key});
679: }
680: }
681: }
682: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
683: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
684: }
685: $indent--;
686: }
687:
688: # --------------- get complete matched list based on the uri (returns an array)
689: sub get_list {
690: my ($r,$uri)=@_;
691: my @list=();
692: (my $luri = $uri) =~ s/\//_/g;
693: if ($env{'form.updatedisplay'}) {
694: foreach (keys %hash) {
695: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
696: delete $hash{$_} if ($_ =~ /^dirlist_timestamp_files_/);
697: }
698: }
699:
700: if (defined($hash{'dirlist_files_'.$luri}) &&
701: $hash{'dirlist_timestamp_files_'.$luri}+600 > (time)) {
702: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
703: } elsif ($uri=~/\.(page|sequence)\/$/) {
704: # is a page or a sequence
705: $uri=~s/\/$//;
706: $uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
707: $uri=~s/\/+/\//g;
708: foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
709: my @ratpart=split(/\:/,$_);
710: push(@list,&LONCAPA::map::qtescape($ratpart[1]));
711: }
712: $hash{'dirlist_files_'.$luri} = join("\n",@list);
713: } else {
714: # is really a directory
715: @list = &Apache::lonnet::dirlist($uri);
716: $hash{'dirlist_files_'.$luri} = join("\n",@list);
717: $hash{'dirlist_timestamp_files_'.$luri} = time;
718: }
719: return @list=&match_ext($r,@list);
720: }
721:
722: sub dynmetaread {
723: my $uri=shift;
724: if (($hash{'display_attrs_8'}==1) || ($hash{'display_attrs_11'}==1)) {
725: # We don't want the filename
726: $uri=~s/\/[^\/]+$//;
727: # Did we already see this?
728: my $builddir=$uri;
729: while ($builddir) {
730: if ($dynread{$builddir}) {
731: return 0;
732: }
733: $builddir=~s/\/[^\/]+$//;
734: }
735: # Actually get the data
736: %dynhash=
737: (%dynhash,&Apache::lonmeta::get_dynamic_metadata_from_sql($uri.'/'));
738: # Remember that we got it
739: $dynread{$uri}=1;
740: }
741: }
742:
743: sub initdebug {
744: my $start_page=
745: &Apache::loncommon::start_page('Debug',undef,
746: {'only_body' => 1,});
747: $start_page =~ s/\n/ /g;
748: return <<ENDJS;
749: <script type="text/javascript">
750: var debugging = true;
751: if (debugging) {
752: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
753: }
754:
755: function output(text) {
756: if (debugging) {
757: debuggingWindow.document.writeln(text);
758: }
759: }
760: output('$start_page<pre>');
761: </script>
762: ENDJS
763: }
764:
765: sub writedebug {
766: my ($text) = @_;
767: return "<script type=\"text/javascript\">output('$text');</script>";
768: }
769:
770: # -------------------- filters out files based on extensions (returns an array)
771: sub match_ext {
772: my ($r,@packlist)=@_;
773: my @trimlist;
774: my $nextline;
775: my @fileext;
776: my $dirptr=16384;
777:
778: foreach my $line (@packlist) {
779: chomp $line;
780: $line =~ s/^\/home\/httpd\/html//;
781: my @unpackline = split (/\&/,$line);
782: next if ($unpackline[0] eq '.');
783: next if ($unpackline[0] eq '..');
784: my @filecom = split (/\./,$unpackline[0]);
785: my $fext = pop(@filecom);
786: my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
787: if ($fnptr == 0 and $unpackline[3] ne "") {
788: my $embstyle = &Apache::loncommon::fileembstyle($fext);
789: push @trimlist,$line if (defined($embstyle) &&
790: ($embstyle ne 'hdn' or $fext eq 'meta'));
791: } else {
792: push @trimlist,$line;
793: }
794: }
795: @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
796: return @trimlist;
797: }
798:
799: # ------------------------------- displays one line in appropriate table format
800: sub display_line {
801: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
802: my (@pathfn, $fndir);
803: # there could be relative paths (files actually belonging into this directory)
804: # or absolute paths (for example, from sequences)
805: my $absolute;
806: my $pathprefix;
807: if ($line=~m|^/res/| && $startdir ne '') {
808: $absolute=1;
809: $pathprefix='';
810: } else {
811: $absolute=0;
812: $pathprefix=$startdir;
813: }
814: my $dirptr=16384;
815: my $fileclr="#ffffe6";
816: my $iconpath= $r->dir_config('lonIconsURL') . '/';
817:
818: my @filecom = split (/\&/,$line);
819: my @pathcom = split (/\//,$filecom[0]);
820: my $listname = $pathcom[scalar(@pathcom)-1];
821: my $fnptr = $filecom[3]&$dirptr;
822: my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
823: $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
824:
825: my $tabtag='</td>';
826: my $i=0;
827: while ($i<=11) {
828: $tabtag=join('',$tabtag,"<td> </td>")
829: if ($i != 9 &&
830: $hash{'display_attrs_'.$i} == 1);
831: $i++;
832: }
833: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
834:
835: # display uplink arrow
836: if ($filecom[1] eq 'viewOneUp') {
837: my $updir=$startdir;
838: # -------------- Filter out sequence containment in crumbs and "recent folders"
839: $updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
840: $updir=~s/\/+/\//g;
841:
842: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
843: $r->print("<td>\n");
844: $r->print ('<form method="post" name="dirpathUP" action="'.$updir.
845: '/" '.
846: 'onSubmit="return rep_dirpath(\'UP\','.
847: 'document.forms.fileattr.acts.value)" '.
848: 'enctype="application/x-www-form-urlencoded"'.
849: '>'."\n");
850: $r->print ('<input type=hidden name=openuri value="'.
851: $startdir.'" />'."\n");
852: $r->print ('<input type="hidden" name="acts" value="" />'."\n");
853: $r->print ('<input src="'.$iconpath.'arrow_up.gif"');
854: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
855: "\n");
856: $r->print(&mt("Up")."</form>$tabtag</tr>\n");
857: return OK;
858: }
859: # Do we have permission to look at this?
860:
861: if($filecom[15] ne '1') { return OK if (!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])); }
862:
863: # make absolute links appear on different background
864: if ($absolute) { $fileclr='#ccdd99'; }
865:
866: # display domain
867: if ($filecom[1] eq 'domain') {
868: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n")
869: if ($env{'form.dirPointer'} eq "on");
870: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
871: $r->print("<td>");
872: &begin_form ($r,$filecom[0]);
873: my $anchor = $filecom[0];
874: $anchor =~ s/\W//g;
875: $r->print ('<a name="'.$anchor.'"></a>');
876: $r->print ('<input type="hidden" name="acts" value="" />');
877: $r->print ('<input src="'.$iconpath.'folder_pointer_'.
878: $diropen.'.gif"');
879: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
880: "\n");
881: my $quotable_filecom = &Apache::loncommon::escape_single($filecom[0]);
882: $r->print ('<a href="javascript:gothere(\''.$quotable_filecom.
883: '\')"><img alt="" src="'.$iconpath.'server.gif"');
884: $r->print (' class="LC_icon" /></a>'."\n");
885: $r->print (&mt("Domain")." - $listname ");
886: if (&Apache::lonnet::domain($listname,'description')) {
887: $r->print("(".&Apache::lonnet::domain($listname,'description').
888: ")");
889: }
890: $r->print ("</form>$tabtag</tr>\n");
891: return OK;
892:
893: # display user directory
894: }
895: if ($filecom[1] eq 'user') {
896: # $r->print("<tr valign=$valign bgcolor=\"$fileclr\">$extrafield");
897: my $curdir = $startdir.$filecom[0].'/';
898: my $anchor = $curdir;
899: $anchor =~ s/\W//g;
900: $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
901: &begin_form ($r,$curdir);
902: $r->print ('<a name="'.$anchor.'"></a><img alt="" src="'.$iconpath.
903: 'whitespace1.gif" class="LC_icon" />'."\n");
904: $r->print ('<input type="hidden" name="acts" value="" />');
905: $r->print ('<input src="'.$iconpath.'folder_pointer_'.$diropen.
906: '.gif"');
907: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
908: "\n");
909: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
910: $r->print ('<a href="javascript:gothere(\''.$quotable_curdir
911: .'\')"><img alt="'.$msg.'" src="'.
912: $iconpath.'quill.gif" class="LC_indexer_icon" /></a>');
913: my $domain=(split(m|/|,$startdir))[2];
914: my $plainname=&Apache::loncommon::plainname($listname,$domain);
915: $r->print ($listname);
916: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
917: $r->print ('</form>'.$tabtag.'</tr>'."\n");
918: return OK;
919: }
920:
921: # display file
922: if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
923: my $title;
924: my $filelink = $pathprefix.$filecom[0];
925: if ($hash{'display_attrs_0'} == 1) {
926: $title = &Apache::lonnet::gettitle($filelink,'title');
927: }
928: my @file_ext = split (/\./,$listname);
929: my $curfext = $file_ext[-1];
930: if (@Omit) {
931: foreach (@Omit) { return OK if ($curfext eq $_); }
932: }
933: if (@Only) {
934: my $skip = 1;
935: foreach (@Only) { $skip = 0 if ($curfext eq $_); }
936: return OK if ($skip > 0);
937: }
938: # Set the icon for the file
939: my $iconname = &Apache::loncommon::icon($listname);
940: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\"><td nowrap='nowrap' valign='top'>");
941:
942: if ($env{'form.catalogmode'} eq 'interactive') {
943: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
944: $r->print("<a href=\"javascript:select_data(\'",
945: $quotable_filelink,"')\">");
946: $r->print("<img alt=\"\" src='",$iconpath,"select.gif' class='LC_icon' /></a>".
947: "\n");
948: $r->print("</td><td nowrap='nowrap' valign='top'>");
949: } elsif ($env{'form.catalogmode'} eq 'import') {
950: $r->print("<form name='form$fnum' action=''>\n");
951: $r->print("<input type='checkbox' name='filelink"."' ".
952: "value='$filelink' onClick='".
953: "javascript:queue(\"form$fnum\")' ");
954: if ($hash{'store_'.$filelink}) {
955: $r->print("checked");
956: }
957: $r->print(" />\n");
958: $r->print("</form></td><td nowrap='nowrap' valign='top'>");
959: $hash{"pre_${fnum}_link"}=$filelink;
960: $hash{"pre_${fnum}_title"}=$title;
961: if (!$hash{"pre_${fnum}_title"}) {
962: $hash{"pre_${fnum}_title"} = 'Not_retrieved';
963: }
964: $fnum++;
965: }
966: # Form to open or close sequences
967: if ($filelink=~/\.(page|sequence)$/) {
968: my $curdir = $startdir.$filecom[0].'/';
969: &begin_form($r,$curdir);
970: $indent--;
971: }
972: # General indentation
973: if ($indent > 0 and $indent < 11) {
974: $r->print("<img alt=\"\" src='",$iconpath,"whitespace",$indent,
975: ".gif' class='LC_icon' />\n");
976: } elsif ($indent >0) {
977: my $ten = int($indent/10.);
978: my $rem = $indent%10.0;
979: my $count = 0;
980: while ($count < $ten) {
981: $r->print("<img alt=\"\" src=".$iconpath.
982: "whitespace10.gif class='LC_icon' />\n");
983: $count++;
984: }
985: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
986: ".gif class='LC_icon' />\n") if $rem > 0;
987: }
988: # Sequence open/close icon
989: if ($filelink=~/\.(page|sequence)$/) {
990: my $curdir = $startdir.$filecom[0].'/';
991: my $anchor = $curdir;
992: $anchor =~ s/\W//g;
993: $r->print ('<input type="hidden" name="acts" value="" />');
994: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
995: 'folder_pointer_'.$diropen.'.gif"');
996: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
997: "\n");
998: }
999: # Filetype icons
1000: $r->print("<img alt=\"\" src='$iconname' class='LC_icon' />\n");
1001: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
1002:
1003:
1004: $r->print (" <a href=\"javascript:openWindow('".$quotable_filelink.
1005: "','previewfile','450','500','no','yes','yes');\"".
1006: " target=\"_self\">$listname</a> ");
1007:
1008: $r->print (" (<a href=\"javascript:openWindow('".$quotable_filelink.
1009: ".meta','metadatafile','500','550','no','yes','no');\" ".
1010: " target=\"_self\">metadata</a>) ");
1011: # Close form to open/close sequence
1012: if ($filelink=~/\.(page|sequence)$/) {
1013: $r->print('</form>');
1014: }
1015: $r->print("</td>\n");
1016: if ($hash{'display_attrs_0'} == 1) {
1017: $r->print('<td> '.($title eq '' ? ' ' : $title).
1018: ' </td>'."\n");
1019: }
1020: $r->print('<td align=right> ',
1021: $filecom[8]," </td>\n")
1022: if $hash{'display_attrs_1'} == 1;
1023: $r->print('<td> '.
1024: (localtime($filecom[9]))." </td>\n")
1025: if $hash{'display_attrs_2'} == 1;
1026: $r->print('<td> '.
1027: (localtime($filecom[10]))." </td>\n")
1028: if $hash{'display_attrs_3'} == 1;
1029:
1030: if ($hash{'display_attrs_4'} == 1) {
1031: my $author = &Apache::lonnet::metadata($filelink,'author');
1032: $r->print('<td> '.($author eq '' ? ' ' : $author).
1033: " </td>\n");
1034: }
1035: if ($hash{'display_attrs_5'} == 1) {
1036: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1037: # $keywords = ' ' if (!$keywords);
1038: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1039: " </td>\n");
1040: }
1041: #'
1042:
1043: if ($hash{'display_attrs_6'} == 1) {
1044: my $lang = &Apache::lonnet::metadata($filelink,'language');
1045: $lang = &Apache::loncommon::languagedescription($lang);
1046: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1047: " </td>\n");
1048: }
1049: if ($hash{'display_attrs_8'} == 1) {
1050: # statistics
1051: &dynmetaread($filelink);
1052: $r->print("<td>");
1053: &dynmetaprint($r,$filelink,'count');
1054: &dynmetaprint($r,$filelink,'course');
1055: &dynmetaprint($r,$filelink,'stdno');
1056: &dynmetaprint($r,$filelink,'avetries');
1057: &dynmetaprint($r,$filelink,'difficulty');
1058: &dynmetaprint($r,$filelink,'disc');
1059: &dynmetaprint($r,$filelink,'clear');
1060: &dynmetaprint($r,$filelink,'technical');
1061: &dynmetaprint($r,$filelink,'correct');
1062: &dynmetaprint($r,$filelink,'helpful');
1063: &dynmetaprint($r,$filelink,'depth');
1064: $r->print(" </td>\n");
1065:
1066: }
1067: if ($hash{'display_attrs_10'} == 1) {
1068: my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
1069: if($source eq 'open') {
1070: my $sourcelink = &Apache::lonsource::make_link($filelink,$listname);
1071: my $quotable_sourcelink = &Apache::loncommon::escape_single($sourcelink);
1072: $r->print('<td>'."<a href=\"javascript:openWindow('"
1073: .$quotable_sourcelink.
1074: "', 'previewsource', '700', '700', 'no', 'yes','yes');\"".
1075: " target=\"_self\">Yes</a> "."</td>\n");
1076: } else { #A cuddled else. :P
1077: $r->print("<td> </td>\n");
1078: }
1079: }
1080: if ($hash{'display_attrs_11'} == 1) {
1081: # links
1082: &dynmetaread($filelink);
1083: $r->print('<td>');
1084: &coursecontext($r,$filelink);
1085: &dynmetaprint($r,$filelink,'goto_list');
1086: &dynmetaprint($r,$filelink,'comefrom_list');
1087: &dynmetaprint($r,$filelink,'sequsage_list');
1088: &dynmetaprint($r,$filelink,'dependencies');
1089: &dynmetaprint($r,$filelink,'course_list');
1090: $r->print('</td>');
1091: }
1092: if ($hash{'display_attrs_7'} == 1) {
1093: # Show resource
1094: my $output=&showpreview($filelink);
1095: $r->print('<td> '.($output eq '' ? ' ':$output).
1096: " </td>\n");
1097: }
1098: $r->print("</tr>\n");
1099: }
1100:
1101: # -- display directory
1102: if ($fnptr == $dirptr) {
1103: my $curdir = $startdir.$filecom[0].'/';
1104: my $anchor = $curdir;
1105: $anchor =~ s/\W//g;
1106: $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
1107: &begin_form ($r,$curdir);
1108: my $indentm1 = $indent-1;
1109: if ($indentm1 < 11 and $indentm1 > 0) {
1110: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$indentm1,
1111: ".gif class='LC_icon' />\n");
1112: } else {
1113: my $ten = int($indentm1/10.);
1114: my $rem = $indentm1%10.0;
1115: my $count = 0;
1116: while ($count < $ten) {
1117: $r->print ("<img alt=\"\" src=",$iconpath
1118: ,"whitespace10.gif class='LC_icon' />\n");
1119: $count++;
1120: }
1121: $r->print ("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
1122: ".gif class='LC_icon' />\n") if $rem > 0;
1123: }
1124: $r->print ('<input type="hidden" name="acts" value="" />');
1125: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
1126: 'folder_pointer_'.$diropen.'.gif"');
1127: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
1128: "\n");
1129: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
1130: $r->print ('<a href="javascript:gothere(\''
1131: .$quotable_curdir.'\')">'
1132: .'<img alt="'.&mt('Open Folder').'"src="'.
1133: $iconpath.'folder_'.$diropen.'.gif" class="LC_icon" /></a>'.
1134: "\n");
1135: $r->print ("$listname</form></td>\n");
1136: # Attributes
1137: my $filelink = $startdir.$filecom[0].'/default';
1138:
1139: if ($hash{'display_attrs_0'} == 1) {
1140: my $title = &Apache::lonnet::gettitle($filelink,'title');
1141: $r->print('<td> '.($title eq '' ? ' ' : $title).
1142: ' </td>'."\n");
1143: }
1144: $r->print('<td align=right> ',
1145: $filecom[8]," </td>\n")
1146: if $hash{'display_attrs_1'} == 1;
1147: $r->print('<td> '.
1148: (localtime($filecom[9]))." </td>\n")
1149: if $hash{'display_attrs_2'} == 1;
1150: $r->print('<td> '.
1151: (localtime($filecom[10]))." </td>\n")
1152: if $hash{'display_attrs_3'} == 1;
1153:
1154: if ($hash{'display_attrs_4'} == 1) {
1155: my $author = &Apache::lonnet::metadata($filelink,'author');
1156: $r->print('<td> '.($author eq '' ? ' ' : $author).
1157: " </td>\n");
1158: }
1159: if ($hash{'display_attrs_5'} == 1) {
1160: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1161: # $keywords = ' ' if (!$keywords);
1162: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1163: " </td>\n");
1164: }
1165: if ($hash{'display_attrs_6'} == 1) {
1166: my $lang = &Apache::lonnet::metadata($filelink,'language');
1167: $lang = &Apache::loncommon::languagedescription($lang);
1168: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1169: " </td>\n");
1170: }
1171: if ($hash{'display_attrs_8'} == 1) {
1172: $r->print('<td> </td>');
1173: }
1174: if ($hash{'display_attrs_10'} == 1) {
1175: $r->print('<td> </td>');
1176: }
1177: if ($hash{'display_attrs_11'} == 1) {
1178: $r->print('<td> </td>');
1179: }
1180: if ($hash{'display_attrs_7'} == 1) {
1181: $r->print('<td> </td>');
1182: }
1183: $r->print('</tr>');
1184: }
1185:
1186: }
1187:
1188: sub coursecontext {
1189: my ($r,$filelink)=@_;
1190: my $filesymb=&Apache::lonnet::symbread($filelink);
1191: if ($filesymb) {
1192: my ($map,$index,$resource)=&Apache::lonnet::decode_symb($filesymb);
1193: $r->print(&mt('Already in this course:<br />[_1] in folder/map [_2].<br />',
1194: &Apache::lonnet::gettitle($resource),
1195: &Apache::lonnet::gettitle($map)));
1196: }
1197: }
1198:
1199: sub showpreview {
1200: my ($filelink)=@_;
1201: if ($filelink=~m-^(/ext/|http://)-) {
1202: return &mt('External Resource, preview not enabled');
1203: }
1204: my ($curfext)=($filelink=~/\.(\w+)$/);
1205: my $output='';
1206: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
1207: if ($embstyle eq 'ssi') {
1208: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
1209: '.tmp';
1210: if ((!$env{'form.updatedisplay'}) &&
1211: (-e $cache)) {
1212: open(FH,$cache);
1213: $output=join("\n",<FH>);
1214: close(FH);
1215: } else {
1216: # In update display mode, remove old cache. This is done to retroactively
1217: # clean up course context renderings.
1218: if (-e $cache) {
1219: unlink($cache);
1220: }
1221: $output=&Apache::lonnet::ssi_body($filelink);
1222: # Is access denied? Don't render, don't store
1223: if ($output=~/LONCAPAACCESSCONTROLERRORSCREEN/s) {
1224: $output='';
1225: # Was this rendered in course content? Don't store
1226: } elsif (!&Apache::lonnet::symbread($filelink)) {
1227: open(FH,">$cache");
1228: print FH $output;
1229: close(FH);
1230: }
1231: }
1232: $output='<font size="-2">'.$output.'</font>';
1233: } elsif ($embstyle eq 'img') {
1234: $output='<img alt="'.&mt('Preview').'" src="'.$filelink.'" />';
1235: } elsif ($filelink=~m{^/res/($match_domain)/($match_username)/}) {
1236: $output='<img alt="'.&mt('Preview').'" src="http://'.
1237: &Apache::lonnet::hostname(&Apache::lonnet::homeserver($2,$1)).
1238: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1239: }
1240: return $output;
1241: }
1242:
1243: sub dynmetaprint {
1244: my ($r,$filelink,$item)=@_;
1245: if ($dynhash{$filelink}->{$item}) {
1246: $r->print("\n<br />".$fieldnames{$item}.': '.
1247: &Apache::lonmeta::prettyprint($item,
1248: $dynhash{$filelink}->{$item},
1249: (($env{'form.catalogmode'} ne 'import')?'preview':''),
1250: '',
1251: (($env{'form.catalogmode'} eq 'import')?'document.forms.fileattr':''),1));
1252: }
1253: }
1254:
1255: # ------------------- prints the beginning of a form for directory or file link
1256: sub begin_form {
1257: my ($r,$uri) = @_;
1258: my $anchor = $uri;
1259: $anchor =~ s/\W//g;
1260: $uri=&Apache::loncommon::escape_single($uri);
1261: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1262: '#'.$anchor.
1263: '" onSubmit="return rep_dirpath(\''.$dnum.'\''.
1264: ',document.forms.fileattr.acts.value)" '.
1265: 'enctype="application/x-www-form-urlencoded">'."\n");
1266: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'" />'.
1267: "\n");
1268: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n");
1269: $dnum++;
1270: }
1271:
1272: # --------- settings whenever the user causes the indexer window to be launched
1273: sub start_fresh_session {
1274: my ($hash) = @_;
1275: delete $hash->{'form.catalogmode'};
1276: delete $hash->{'form.mode'};
1277: delete $hash->{'form.form'};
1278: delete $hash->{'form.element'};
1279: delete $hash->{'form.omit'};
1280: delete $hash->{'form.only'};
1281: foreach (keys %{$hash}) {
1282: delete $hash->{$_} if (/^(pre_|store)/);
1283: }
1284: }
1285:
1286: # ------------------------------------------------------------------- setvalues
1287: sub setvalues {
1288: # setvalues is used in registerurl to synchronize the database
1289: # hash and environment hashes
1290: my ($H1,$h1key,$H2,$h2key) =@_;
1291: #
1292: if (exists $H2->{$h2key}) {
1293: $H1->{$h1key} = $H2->{$h2key};
1294: } elsif (exists $H1->{$h1key}) {
1295: $H2->{$h2key} = $H1->{$h1key};
1296: }
1297: }
1298:
1299: 1;
1300:
1301: sub cleanup {
1302: if (tied(%hash)){
1303: &Apache::lonnet::logthis('Cleanup indexer: hash');
1304: }
1305: return OK;
1306: }
1307:
1308:
1309:
1310:
1311:
1312: =head1 NAME
1313:
1314: Apache::lonindexer - mod_perl module for cross server filesystem browsing
1315:
1316: =head1 SYNOPSIS
1317:
1318: Invoked by /etc/httpd/conf/srm.conf:
1319:
1320: <LocationMatch "^/res.*/$">
1321: SetHandler perl-script
1322: PerlHandler Apache::lonindexer
1323: </LocationMatch>
1324:
1325: =head1 INTRODUCTION
1326:
1327: This module enables a scheme of browsing across a cross server.
1328:
1329: This is part of the LearningOnline Network with CAPA project
1330: described at http://www.lon-capa.org.
1331:
1332: =head1 BEGIN SUBROUTINE
1333:
1334: This routine is only run once after compilation.
1335:
1336: =over 4
1337:
1338: =item *
1339:
1340: Initializes %language hash table.
1341:
1342: =back
1343:
1344: =head1 HANDLER SUBROUTINE
1345:
1346: This routine is called by Apache and mod_perl.
1347:
1348: =over 4
1349:
1350: =item *
1351:
1352: read in machine configuration variables
1353:
1354: =item *
1355:
1356: see if called from an interactive mode
1357:
1358: =item *
1359:
1360: refresh environment with user database values (in %hash)
1361:
1362: =item *
1363:
1364: define extra fields and buttons in case of special mode
1365:
1366: =item *
1367:
1368: set catalogmodefunctions to have extra needed javascript functionality
1369:
1370: =item *
1371:
1372: print header
1373:
1374: =item *
1375:
1376: evaluate actions from previous page (both cumulatively and chronologically)
1377:
1378: =item *
1379:
1380: output title
1381:
1382: =item *
1383:
1384: get state of file attributes to be showing
1385:
1386: =item *
1387:
1388: output state of file attributes to be showing
1389:
1390: =item *
1391:
1392: output starting row to the indexed file/directory hierarchy
1393:
1394: =item *
1395:
1396: read in what directories have previously been set to "open"
1397:
1398: =item *
1399:
1400: if not at top level, provide an uplink arrow
1401:
1402: =item *
1403:
1404: recursively go through all the directories and output as appropriate
1405:
1406: =item *
1407:
1408: information useful for group import
1409:
1410: =item *
1411:
1412: end the tables
1413:
1414: =item *
1415:
1416: end the output and return
1417:
1418: =back
1419:
1420: =head1 OTHER SUBROUTINES
1421:
1422: =over 4
1423:
1424: =item *
1425:
1426: scanDir - recursive scan of a directory
1427:
1428: =item *
1429:
1430: get_list - get complete matched list based on the uri (returns an array)
1431:
1432: =item *
1433:
1434: match_ext - filters out files based on extensions (returns an array)
1435:
1436: =item *
1437:
1438: display_line - displays one line in appropriate table format
1439:
1440: =item *
1441:
1442: begin_form - prints the beginning of a form for directory or file link
1443:
1444: =item *
1445:
1446: start_fresh_session - settings whenever the user causes the indexer window
1447: to be launched
1448:
1449: =back
1450:
1451: =cut
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