1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.173 2007/07/18 13:39:31 banghart Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: ###
29:
30: ###############################################################################
31: ## ##
32: ## ORGANIZATION OF THIS PERL MODULE ##
33: ## ##
34: ## 1. Description of functions ##
35: ## 2. Modules used by this module ##
36: ## 3. Choices for different output views (detailed, summary, xml, etc) ##
37: ## 4. BEGIN block (to be run once after compilation) ##
38: ## 5. Handling routine called via Apache and mod_perl ##
39: ## 6. Other subroutines ##
40: ## ##
41: ###############################################################################
42:
43: package Apache::lonindexer;
44:
45: # ------------------------------------------------- modules used by this module
46: use strict;
47: use Apache::lonnet;
48: use Apache::loncommon();
49: use Apache::lonhtmlcommon();
50: use Apache::lonsequence();
51: use Apache::Constants qw(:common);
52: use Apache::lonmeta;
53: use Apache::File;
54: use Apache::lonlocal;
55: use Apache::lonsource();
56: use Apache::groupsort();
57: use GDBM_File;
58: use LONCAPA qw(:match);
59:
60: # ---------------------------------------- variables used throughout the module
61: my %hash; # global user-specific gdbm file
62: my %dirs; # keys are directories, values are the open/close status
63: my %language; # has the reference information present in language.tab
64: my %dynhash; # hash of hashes for dynamic metadata
65: my %dynread; # hash of directories already read for dynamic metadata
66: my %fieldnames; # Metadata fieldnames
67: # ----- Values which are set by the handler subroutine and are accessible to
68: # ----- other methods.
69: my $extrafield; # default extra table cell
70: my $fnum; # file counter
71: my $dnum; # directory counter
72:
73: # ----- Used to include or exclude files with certain extensions.
74: my @Only = ();
75: my @Omit = ();
76:
77:
78:
79:
80: # ----------------------------- Handling routine called via Apache and mod_perl
81: sub handler {
82: my $r = shift;
83: my $c = $r->connection();
84: &Apache::loncommon::content_type($r,'text/html');
85: &Apache::loncommon::no_cache($r);
86: $r->send_http_header;
87: return OK if $r->header_only;
88: $fnum=0;
89: $dnum=0;
90:
91: # Deal with stupid global variables (is there a way around making
92: # these global to this package? It is just so wrong....)
93: undef (@Only);
94: undef (@Omit);
95: %fieldnames=&Apache::lonmeta::fieldnames();
96:
97: # ------------------------------------- read in machine configuration variables
98: my $iconpath= $r->dir_config('lonIconsURL') . "/";
99: my $domain = $r->dir_config('lonDefDomain');
100: my $role = $r->dir_config('lonRole');
101: my $loadlim = $r->dir_config('lonLoadLim');
102: my $servadm = $r->dir_config('lonAdmEMail');
103: my $sysadm = $r->dir_config('lonSysEMail');
104: my $lonhost = $r->dir_config('lonHostID');
105: my $tabdir = $r->dir_config('lonTabDir');
106:
107: my $fileclr='#ffffe6';
108: my $line;
109: my (@attrchk,@openpath);
110: my $uri=$r->uri;
111:
112: # -------------------------------------- see if called from an interactive mode
113: # Get the parameters from the query string
114: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
115: ['catalogmode','launch','acts','mode','form','element',
116: 'only','omit','titleelement']);
117: #-------------------------------------------------------------------
118: my $closebutton='';
119: my $groupimportbutton='';
120: my $colspan='';
121:
122: $extrafield='';
123: my $diropendb =
124: "/home/httpd/perl/tmp/$env{'user.domain'}_$env{'user.name'}_sel_res.db";
125: %hash = ();
126: {
127: my %dbfile;
128: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_WRITER(),0640)) {
129: if ($env{'form.launch'} eq '1') {
130: &start_fresh_session(\%dbfile);
131: }
132: while(my($key,$value)=each(%dbfile)) {
133: $hash{$key}=$value;
134: }
135: untie(%dbfile);
136: }
137: }
138: {
139: #Hijack lonindexer to verify a title and be close down.
140: if ($env{'form.launch'} eq '2') {
141: &Apache::loncommon::content_type($r,'text/html');
142: my $extra='';
143: if (defined($env{'form.titleelement'}) &&
144: $env{'form.titleelement'} ne '') {
145: my $verify_title = &Apache::lonnet::gettitle($env{'form.acts'});
146: # &Apache::lonnet::logthis("Hrrm $env{'form.acts'} -- $verify_title");
147: $verify_title=~s/'/\\'/g;
148: $extra='window.opener.document.forms["'.$env{'form.form'}.'"].elements["'.$env{'form.titleelement'}.'"].value=\''.$verify_title.'\';';
149: }
150: my $js = <<ENDSUBM;
151: <script type="text/javascript">
152: function load() {
153: window.opener.document.forms["$env{'form.form'}"]
154: .elements["$env{'form.element'}"]
155: .value='$env{'form.acts'}';
156: $extra
157: window.close();
158: }
159: </script>
160: ENDSUBM
161: $r->print(&Apache::loncommon::start_page(undef,$js,
162: {'only_body' =>1,
163: 'add_entries' =>
164: {'onload' => "load();"},}
165: ).
166: &Apache::loncommon::end_page());
167: return OK;
168: }
169:
170: # -------------------- refresh environment with user database values (in %hash)
171: &setvalues(\%hash,'form.catalogmode',\%env,'form.catalogmode' );
172:
173: # --------------------- define extra fields and buttons in case of special mode
174: if ($env{'form.catalogmode'} eq 'interactive') {
175: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
176: '<img alt="" src="'.$iconpath.'whitespace1.gif"'.
177: ' class="LC_icon" /></td>';
178: $colspan=" colspan='2' ";
179: my $cl=&mt('Close');
180: $closebutton=<<END;
181: <input type="button" name="close" value='$cl' onClick="self.close()" />
182: END
183: }
184: elsif ($env{'form.catalogmode'} eq 'import') {
185: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
186: '<img alt="" src="'.$iconpath.'whitespace1.gif"'.
187: ' class="LC_icon" /></td>';
188: $colspan=" colspan='2' ";
189: my $cl=&mt('Close');
190: my $gi=&mt('Import');
191: $closebutton=<<END;
192: <input type="button" name="close" value='$cl' onClick="self.close()" />
193: END
194: $groupimportbutton=<<END;
195: <input type="button" name="groupimport" value='$gi'
196: onClick="javascript:select_group()" />
197: END
198: }
199: # Additions made by Matthew to make the browser a little easier to deal
200: # with in the future.
201: #
202: # $mode (at this time) indicates if we are in edit mode.
203: # $form is the name of the form that the URL is placed when the
204: # selection is made.
205: # $element is the name of the element in $formname which receives
206: # the URL.
207: #&Apache::lonxml::debug('Checking mode, form, element');
208: &setvalues(\%hash,'form.mode' ,\%env,'form.mode' );
209: &setvalues(\%hash,'form.form' ,\%env,'form.form' );
210: &setvalues(\%hash,'form.element' ,\%env,'form.element');
211: &setvalues(\%hash,'form.titleelement',\%env,'form.titleelement');
212: &setvalues(\%hash,'form.only' ,\%env,'form.only' );
213: &setvalues(\%hash,'form.omit' ,\%env,'form.omit' );
214:
215: # Deal with 'omit' and 'only'
216: if (exists $env{'form.omit'}) {
217: @Omit = split(',',$env{'form.omit'});
218: }
219: if (exists $env{'form.only'}) {
220: @Only = split(',',$env{'form.only'});
221: }
222:
223: my $mode = $env{'form.mode'};
224: my ($form,$element,$titleelement);
225: if ($mode eq 'edit' || $mode eq 'parmset') {
226: $form = $env{'form.form'};
227: $element = $env{'form.element'};
228: $titleelement = $env{'form.titleelement'};
229: }
230: #&Apache::lonxml::debug("mode=$mode form=$form element=$element titleelement=$titleelement");
231: # ------ set catalogmodefunctions to have extra needed javascript functionality
232: my $catalogmodefunctions='';
233: if ($env{'form.catalogmode'} eq 'interactive' or
234: $env{'form.catalogmode'} eq 'import') {
235: # The if statement below sets us up to use the old version
236: # by default (ie. if $mode is undefined). This is the easy
237: # way out. Hopefully in the future I'll find a way to get
238: # the calls dealt with in a more comprehensive manner.
239:
240: #
241: # There is now also mode "simple", which is for the simple version of the rat
242: #
243: #
244: if (!defined($mode) || ($mode ne 'edit' && $mode ne 'parmset')) {
245: my $location = "/adm/groupsort?&inhibitmenu=yes&catalogmode=import&";
246: $location .= "mode=".$mode."&";
247: $location .= "acts=";
248: $catalogmodefunctions=<<"END";
249: function select_data(url) {
250: changeURL(url);
251: self.close();
252: }
253: function select_group() {
254: window.location="$location"+document.forms.fileattr.acts.value;
255: }
256: function changeURL(val) {
257: if (opener.inf) {
258: if (opener.inf.document.forms.resinfo.elements.u) {
259: opener.inf.document.forms.resinfo.elements.u.value=val;
260: }
261: }
262: }
263: END
264: } elsif ($mode eq 'edit') { # we are in 'edit' mode
265: my $location = "/adm/groupsort?catalogmode=interactive&";
266: $location .= "form=$form&element=$element&mode=edit&acts=";
267: $catalogmodefunctions=<<END;
268: // mode = $mode
269: function select_data(url) {
270: var location = "/res/?launch=2&form=$form&element=$element&titleelement=$titleelement&acts=" + url;
271: window.location=location;
272: if (window.opener.document.forms["$form"].elements["$element"].value != url) {
273: window.opener.unClean();
274: }
275: }
276: function select_group() {
277: window.location="$location"+document.forms.fileattr.acts.value;
278: }
279:
280: function changeURL(val) {
281: if (window.opener.document) {
282: window.opener.document.forms["$form"].elements["$element"].value=val;
283: } else {
284: alert("The file you selected is: "+val);
285: }
286: }
287: END
288: if (!$titleelement) {
289: $catalogmodefunctions.='function changeTitle(val) {}';
290: } else {
291: $catalogmodefunctions.=<<END;
292: function changeTitle(val) {
293: if (window.opener.document) {
294: window.opener.document.forms["$form"].elements["$titleelement"].value=val;
295: } else {
296: alert("The title of the file you selected is: "+val);
297: }
298: }
299: END
300: }
301: } elsif ($mode eq 'parmset') {
302: my $location = "/adm/groupsort?catalogmode=interactive&";
303: $location .= "form=$form&element=$element&mode=parmset&acts=";
304: $catalogmodefunctions=<<END;
305: // mode = $mode
306: function select_data(url) {
307: changeURL(url);
308: self.close();
309: }
310:
311: function select_group() {
312: window.location="$location"+document.forms.fileattr.acts.value;
313: }
314:
315: function changeURL(val) {
316: if (window.opener.document) {
317: var elementname = "$element"+"_value";
318: var checkboxname = "$element"+"_setparmval";
319: window.opener.document.forms["$form"].elements[elementname].value=val;
320: window.opener.document.forms["$form"].elements[checkboxname].checked=true;
321: } else {
322: alert("The file you selected is: "+val);
323: }
324: }
325:
326: END
327: }
328: }
329: $catalogmodefunctions.=<<END;
330: var acts='';
331: function rep_dirpath(suffix,val) {
332: eval("document.forms.dirpath"+suffix+".acts.value=val");
333: }
334: END
335: if ($env{'form.catalogmode'} eq 'import') {
336: $catalogmodefunctions.=<<END;
337: function queue(val) {
338: if (eval("document.forms."+val+".filelink.checked")) {
339: var l=val.length;
340: var v=val.substring(4,l);
341: document.forms.fileattr.acts.value+='1a'+v+'b';
342: }
343: else {
344: var l=val.length;
345: var v=val.substring(4,l);
346: document.forms.fileattr.acts.value+='0a'+v+'b';
347: }
348: }
349: END
350: }
351:
352: my $inhibit_menu = "+'&".&Apache::loncommon::inhibit_menu_check()."'";
353: # ---------------------------------------------------------------- Print Header
354:
355: my $js = <<"ENDHEADER";
356: <script type="text/javascript">
357: $catalogmodefunctions
358: function checkAll() {
359: var numForms = document.forms.length;
360: for (i=0;i<numForms;i++) {
361: var numElements = document.forms[i].elements.length;
362: for (j=0;j<numElements;j++){
363: var fieldName = document.forms[i].elements[j].name;
364: if (fieldName == 'filelink') {
365: document.forms[i].elements[j].checked = true;
366: queue(document.forms[i].name);
367: }
368: }
369: }
370: }
371: function uncheckAll() {
372: var numForms = document.forms.length;
373: for (i=0;i<numForms;i++) {
374: var numElements = document.forms[i].elements.length;
375: for (j=0;j<numElements;j++){
376: var fieldName = document.forms[i].elements[j].name;
377: if (fieldName == 'filelink') {
378: document.forms[i].elements[j].checked = false;
379: queue(document.forms[i].name);
380: }
381: }
382: }
383: }
384: function openWindow(url, wdwName, w, h, toolbar,scrollbar,locationbar) {
385: var xpos = (screen.width-w)/2;
386: xpos = (xpos < 0) ? '0' : xpos;
387: var ypos = (screen.height-h)/2-30;
388: ypos = (ypos < 0) ? '0' : ypos;
389: var options = "width=" + w + ",height=" + h + ",screenx="+xpos+",screeny="+ypos+",";
390: options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
391: options += "menubar=no,toolbar="+toolbar+",location="+locationbar+",directories=no";
392: var newWin = window.open(url, wdwName, options);
393: newWin.focus();
394: }
395: function gothere(val) {
396: window.location=val+'?acts='+document.forms.fileattr.acts.value$inhibit_menu;
397: }
398: </script>
399: ENDHEADER
400:
401: my ($headerdom)=($uri=~m{^/res/($match_domain)/});
402: $r->print(&Apache::loncommon::start_page('Browse Resources',$js,
403: {'domain' => $headerdom,}));
404: # - Evaluate actions from previous page (both cumulatively and chronologically)
405: if ($env{'form.catalogmode'} eq 'import') {
406: &Apache::groupsort::update_actions_hash(\%hash);
407: }
408:
409: # ---------------------------------- get state of file attributes to be showing
410: if ($env{'form.attrs'}) {
411: for (my $i=0; $i<=11; $i++) {
412: delete $hash{'display_attrs_'.$i};
413: if ($env{'form.attr'.$i} == 1) {
414: $attrchk[$i] = 'checked';
415: $hash{'display_attrs_'.$i} = 1;
416: }
417: }
418: } else {
419: for (my $i=0; $i<=11; $i++) {
420: $attrchk[$i] = 'checked' if $hash{'display_attrs_'.$i} == 1;
421: }
422: }
423:
424: # ------------------------------- output state of file attributes to be showing
425: # All versions has to the last item
426: # since it does not take an extra col
427: my %lt=&Apache::lonlocal::texthash(
428: 'ti' => 'Title',
429: 'si' => 'Size',
430: 'la' => 'Last access',
431: 'lm' => 'Last modified',
432: 'st' => 'Statistics',
433: 'au' => 'Author',
434: 'kw' => 'Keywords',
435: 'ln' => 'Language',
436: 'sa' => 'Source Available',
437: 'sr' => 'Show resource',
438: 'li' => 'Linked/Related Resources',
439: 'av' => 'All versions',
440: 'ud' => 'Update Display'
441: );
442: $r->print(<<END);
443: <form method="post" name="fileattr" action="$uri"
444: enctype="application/x-www-form-urlencoded">
445: <label><input type="checkbox" name="attr9" value="1" $attrchk[9] onClick="this.form.submit();" /> $lt{'av'}</label>
446: <table border="0">
447: <tr>
448: <td><label><input type="checkbox" name="attr0" value="1" $attrchk[0] onClick="this.form.submit();" /> $lt{'ti'}</label></td>
449: <td><label><input type="checkbox" name="attr4" value="1" $attrchk[4] onClick="this.form.submit();" /> $lt{'au'}</label></td>
450: <td><label><input type="checkbox" name="attr5" value="1" $attrchk[5] onClick="this.form.submit();" /> $lt{'kw'}</label></td>
451: <td><label><input type="checkbox" name="attr6" value="1" $attrchk[6] onClick="this.form.submit();" /> $lt{'ln'}</label></td>
452: </tr>
453: <tr>
454: <td><label><input type="checkbox" name="attr1" value="1" $attrchk[1] onClick="this.form.submit();" /> $lt{'si'}</label></td>
455: <td><label><input type="checkbox" name="attr2" value="1" $attrchk[2] onClick="this.form.submit();" /> $lt{'la'}</label></td>
456: <td><label><input type="checkbox" name="attr3" value="1" $attrchk[3] onClick="this.form.submit();" /> $lt{'lm'}</label></td>
457: <td><label><input type="checkbox" name="attr10" value="1" $attrchk[10] onClick="this.form.submit();" /> $lt{'sa'}</label></td>
458: </tr>
459: <tr>
460: <td><label><input type="checkbox" name="attr8" value="1" $attrchk[8] onClick="this.form.submit();" /> $lt{'st'}</label></td>
461: <td><label><input type="checkbox" name="attr11" value="1" $attrchk[11] onClick="this.form.submit();" /> $lt{'li'}</label></td>
462: <td><label><input type="checkbox" name="attr7" value="1" $attrchk[7] onClick="this.form.submit();" /> $lt{'sr'}</label></td>
463: <td> </td>
464: </tr>
465: </table>
466: <input type="hidden" name="attrs" value="1" />
467: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
468: <input type="hidden" name="acts" value="" />
469: $closebutton $groupimportbutton
470: END
471: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
472: # -------------- Filter out sequence containment in crumbs and "recent folders"
473: my $storeuri=$uri;
474: $storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
475: $storeuri=~s/\/+/\//g;
476: # ---------------------------------------------------------------- Bread crumbs
477: $r->print(&Apache::lonhtmlcommon::crumbs($storeuri,'','',
478: (($env{'form.catalogmode'} eq 'import')?
479: 'document.forms.fileattr':'')).
480: &Apache::lonhtmlcommon::select_recent('residx','resrecent',
481: '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();'));
482: # -------------------------------------------------------- Resource Home Button
483: my $reshome=$env{'course.'.$env{'request.course.id'}.'.reshome'};
484: if ($reshome) {
485: $r->print("<font size='+2'><a href='");
486: if ($env{'form.catalogmode'} eq 'import') {
487: $r->print('javascript:document.forms.fileattr.action="'.&Apache::loncommon::inhibit_menu_check($reshome).'";document.forms.fileattr.submit();');
488: } else {
489: $r->print($reshome);
490: }
491: $r->print("'>".&mt('Home').'</a></font>');
492: }
493: $r->print('</form>');
494: # ------------------------------------------------------ Remember where we were
495: &Apache::loncommon::storeresurl($storeuri);
496: &Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
497: # -------------------------------------------------- Check All and Uncheck all
498: if ($env{'form.catalogmode'} eq 'import') {
499: $r->print('<br /><input type="button" value="'.&mt("Check All").'" id="checkallbutton" onClick="javascript:checkAll()" />');
500: $r->print('<input type="button" value="'.&mt("Uncheck All").'" id="uncheckallbutton" onClick="javascript:uncheckAll()" />');
501: }
502: # ----------------- output starting row to the indexed file/directory hierarchy
503: my $titleclr="#ddffff";
504: #$r->print(&initdebug());
505: #$r->print(&writedebug("Omit:@Omit")) if (@Omit);
506: #$r->print(&writedebug("Only:@Only")) if (@Only);
507: $r->print('<table width="100%" border="0"><tr><td bgcolor="#777777">'."\n");
508: $r->print('<table width="100%" border="0"><tr bgcolor="'.$titleclr.'">'."\n");
509: $r->print("<td $colspan><b>".&mt('Name')."</b></td>\n");
510: $r->print("<td><b>".&mt('Title')."</b></td>\n")
511: if ($hash{'display_attrs_0'} == 1);
512: $r->print("<td align=right><b>".&mt("Size")." (".&mt("bytes").") ".
513: "</b></td>\n") if ($hash{'display_attrs_1'} == 1);
514: $r->print("<td><b>".&mt("Last accessed")."</b></td>\n")
515: if ($hash{'display_attrs_2'} == 1);
516: $r->print("<td><b>".&mt("Last modified")."</b></td>\n")
517: if ($hash{'display_attrs_3'} == 1);
518: $r->print("<td><b>".&mt("Author(s)")."</b></td>\n")
519: if ($hash{'display_attrs_4'} == 1);
520: $r->print("<td><b>".&mt("Keywords")."</b></td>\n")
521: if ($hash{'display_attrs_5'} == 1);
522: $r->print("<td><b>".&mt("Language")."</b></td>\n")
523: if ($hash{'display_attrs_6'} == 1);
524: $r->print("<td><b>".&mt("Usage Statistics")." <br />(".
525: &mt("Courses/Network Hits").")</b> ".&mt('updated periodically')."</td>\n")
526: if ($hash{'display_attrs_8'} == 1);
527: $r->print("<td><b>".&mt("Source Available")."</b></td>\n")
528: if ($hash{'display_attrs_10'} == 1);
529: $r->print("<td><b>".&mt("Linked/Related Resources")."</b></td>\n")
530: if ($hash{'display_attrs_11'} == 1);
531: $r->print("<td><b>".&mt("Resource")."</b></td>\n")
532: if ($hash{'display_attrs_7'} == 1);
533: $r->print('</tr>');
534:
535: # ----------------- read in what directories have previously been set to "open"
536: foreach (keys %hash) {
537: if ($_ =~ /^diropen_status_/) {
538: my $key = $_;
539: $key =~ s/^diropen_status_//;
540: $dirs{$key} = $hash{$_};
541: }
542: }
543:
544: if ($env{'form.openuri'}) { # take care of review and refresh options
545: my $uri=$env{'form.openuri'};
546: if (exists($hash{'diropen_status_'.$uri})) {
547: my $cursta = $hash{'diropen_status_'.$uri};
548: $dirs{$uri} = 'open';
549: $hash{'diropen_status_'.$uri} = 'open';
550: if ($cursta eq 'open') {
551: $dirs{$uri} = 'closed';
552: $hash{'diropen_status_'.$uri} = 'closed';
553: }
554: } else {
555: $hash{'diropen_status_'.$uri} = 'open';
556: $dirs{$uri} = 'open';
557: }
558: }
559:
560: my $toplevel;
561: my $indent = 0;
562: $uri = $uri.'/' if $uri !~ /.*\/$/;
563:
564: if ($env{'form.dirPointer'} ne 'on') {
565: $hash{'top.level'} = $uri;
566: $toplevel = $uri;
567: } else {
568: $toplevel = $hash{'top.level'};
569: }
570:
571: # -------------------------------- if not at top level, provide an uplink arrow
572: if ($toplevel ne '/res/'){
573: my (@uri_com) = split(/\//,$uri);
574: pop @uri_com;
575: my $upone = join('/',@uri_com);
576: my @list = qw (0);
577: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
578: $indent = 1;
579: }
580:
581: # -------- recursively go through all the directories and output as appropriate
582: &scanDir ($r,$toplevel,$indent,\%hash);
583:
584:
585: # -------------------------------------------------------------- end the tables
586: $r->print('</table>');
587: # ---------------------------- embed hidden information useful for group import
588: $r->print("<form name='fnum' action=''>");
589: $r->print("<input type='hidden' name='fnum' value='$fnum' /></form>");
590: # -------------------------------------------------------------- end the tables
591: $r->print('</td></tr></table>');
592:
593: # --------------------------------------------------- end the output and return
594: $r->print(&Apache::loncommon::end_page()."\n");
595: }
596: if(! $c->aborted()) {
597: # write back into the temporary file
598: my %dbfile;
599: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
600: while (my($key,$value) = each(%hash)) {
601: $dbfile{$key}=$value;
602: }
603: untie(%dbfile);
604: }
605: }
606:
607: return OK;
608: }
609:
610: # ----------------------------------------------- recursive scan of a directory
611: sub scanDir {
612: my ($r,$startdir,$indent,$hashref)=@_;
613: my $c = $r->connection();
614: my ($compuri,$curdir);
615: my $dirptr=16384;
616: my $obs;
617: $indent++;
618: my %dupdirs = %dirs;
619: my @list=&get_list($r,$startdir);
620: foreach my $line (@list) {
621: return if ($c->aborted());
622: #This is a kludge, sorry aboot this
623: my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
624: next if($strip =~ /.*\.meta$/ | $obs eq '1');
625: my (@fileparts) = split(/\./,$strip);
626: if ($hash{'display_attrs_9'} != 1) {
627: # if not all versions to be shown
628: if (scalar(@fileparts) >= 3) {
629: my $fext = pop @fileparts;
630: my $ov = pop @fileparts;
631: my $fname = join ('.',@fileparts,$fext);
632: next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
633: }
634: }
635:
636: if ($dom eq 'domain') {
637: # dom list has full path /res/<domain name>/ already
638: $curdir='';
639: $compuri = (split(/\&/,$line))[0];
640: } else {
641: # user, dir & file have name only, i.e., w/o path
642: $compuri = join('',$startdir,$strip,'/');
643: $curdir = $startdir;
644: }
645: my $diropen = 'closed';
646: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
647: while (my ($key,$val)= each %dupdirs) {
648: if ($key eq $compuri and $val eq "open") {
649: $diropen = "opened";
650: delete($dupdirs{$key});
651: delete($dirs{$key});
652: }
653: }
654: }
655: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
656: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
657: }
658: $indent--;
659: }
660:
661: # --------------- get complete matched list based on the uri (returns an array)
662: sub get_list {
663: my ($r,$uri)=@_;
664: my @list=();
665: (my $luri = $uri) =~ s/\//_/g;
666: if ($env{'form.updatedisplay'}) {
667: foreach (keys %hash) {
668: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
669: delete $hash{$_} if ($_ =~ /^dirlist_timestamp_files_/);
670: }
671: }
672:
673: if (defined($hash{'dirlist_files_'.$luri}) &&
674: $hash{'dirlist_timestamp_files_'.$luri}+600 > (time)) {
675: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
676: } elsif ($uri=~/\.(page|sequence)\/$/) {
677: # is a page or a sequence
678: $uri=~s/\/$//;
679: $uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
680: $uri=~s/\/+/\//g;
681: foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
682: my @ratpart=split(/\:/,$_);
683: push(@list,&LONCAPA::map::qtescape($ratpart[1]));
684: }
685: $hash{'dirlist_files_'.$luri} = join("\n",@list);
686: } else {
687: # is really a directory
688: @list = &Apache::lonnet::dirlist($uri);
689: $hash{'dirlist_files_'.$luri} = join("\n",@list);
690: $hash{'dirlist_timestamp_files_'.$luri} = time;
691: }
692: return @list=&match_ext($r,@list);
693: }
694:
695: sub dynmetaread {
696: my $uri=shift;
697: if (($hash{'display_attrs_8'}==1) || ($hash{'display_attrs_11'}==1)) {
698: # We don't want the filename
699: $uri=~s/\/[^\/]+$//;
700: # Did we already see this?
701: my $builddir=$uri;
702: while ($builddir) {
703: if ($dynread{$builddir}) {
704: return 0;
705: }
706: $builddir=~s/\/[^\/]+$//;
707: }
708: # Actually get the data
709: %dynhash=
710: (%dynhash,&Apache::lonmeta::get_dynamic_metadata_from_sql($uri.'/'));
711: # Remember that we got it
712: $dynread{$uri}=1;
713: }
714: }
715:
716: sub initdebug {
717: my $start_page=
718: &Apache::loncommon::start_page('Debug',undef,
719: {'only_body' => 1,});
720: $start_page =~ s/\n/ /g;
721: return <<ENDJS;
722: <script type="text/javascript">
723: var debugging = true;
724: if (debugging) {
725: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
726: }
727:
728: function output(text) {
729: if (debugging) {
730: debuggingWindow.document.writeln(text);
731: }
732: }
733: output('$start_page<pre>');
734: </script>
735: ENDJS
736: }
737:
738: sub writedebug {
739: my ($text) = @_;
740: return "<script type=\"text/javascript\">output('$text');</script>";
741: }
742:
743: # -------------------- filters out files based on extensions (returns an array)
744: sub match_ext {
745: my ($r,@packlist)=@_;
746: my @trimlist;
747: my $nextline;
748: my @fileext;
749: my $dirptr=16384;
750:
751: foreach my $line (@packlist) {
752: chomp $line;
753: $line =~ s/^\/home\/httpd\/html//;
754: my @unpackline = split (/\&/,$line);
755: next if ($unpackline[0] eq '.');
756: next if ($unpackline[0] eq '..');
757: my @filecom = split (/\./,$unpackline[0]);
758: my $fext = pop(@filecom);
759: my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
760: if ($fnptr == 0 and $unpackline[3] ne "") {
761: my $embstyle = &Apache::loncommon::fileembstyle($fext);
762: push @trimlist,$line if (defined($embstyle) &&
763: ($embstyle ne 'hdn' or $fext eq 'meta'));
764: } else {
765: push @trimlist,$line;
766: }
767: }
768: @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
769: return @trimlist;
770: }
771:
772: # ------------------------------- displays one line in appropriate table format
773: sub display_line {
774: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
775: my (@pathfn, $fndir);
776: # there could be relative paths (files actually belonging into this directory)
777: # or absolute paths (for example, from sequences)
778: my $absolute;
779: my $pathprefix;
780: if ($line=~m|^/res/| && $startdir ne '') {
781: $absolute=1;
782: $pathprefix='';
783: } else {
784: $absolute=0;
785: $pathprefix=$startdir;
786: }
787: my $dirptr=16384;
788: my $fileclr="#ffffe6";
789: my $iconpath= $r->dir_config('lonIconsURL') . '/';
790:
791: my @filecom = split (/\&/,$line);
792: my @pathcom = split (/\//,$filecom[0]);
793: my $listname = $pathcom[scalar(@pathcom)-1];
794: my $fnptr = $filecom[3]&$dirptr;
795: my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
796: $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
797:
798: my $tabtag='</td>';
799: my $i=0;
800: while ($i<=11) {
801: $tabtag=join('',$tabtag,"<td> </td>")
802: if ($i != 9 &&
803: $hash{'display_attrs_'.$i} == 1);
804: $i++;
805: }
806: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
807:
808: # display uplink arrow
809: if ($filecom[1] eq 'viewOneUp') {
810: my $updir=$startdir;
811: # -------------- Filter out sequence containment in crumbs and "recent folders"
812: $updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
813: $updir=~s/\/+/\//g;
814:
815: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
816: $r->print("<td>\n");
817: $r->print ('<form method="post" name="dirpathUP" action="'.$updir.
818: '/" '.
819: 'onSubmit="return rep_dirpath(\'UP\','.
820: 'document.forms.fileattr.acts.value)" '.
821: 'enctype="application/x-www-form-urlencoded"'.
822: '>'."\n");
823: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
824: $r->print ('<input type=hidden name=openuri value="'.
825: $startdir.'" />'."\n");
826: $r->print ('<input type="hidden" name="acts" value="" />'."\n");
827: $r->print ('<input src="'.$iconpath.'arrow_up.gif"');
828: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
829: "\n");
830: $r->print(&mt("Up")."</form>$tabtag</tr>\n");
831: return OK;
832: }
833: # Do we have permission to look at this?
834:
835: if($filecom[15] ne '1') { return OK if (!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])); }
836:
837: # make absolute links appear on different background
838: if ($absolute) { $fileclr='#ccdd99'; }
839:
840: # display domain
841: if ($filecom[1] eq 'domain') {
842: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n")
843: if ($env{'form.dirPointer'} eq "on");
844: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
845: $r->print("<td>");
846: &begin_form ($r,$filecom[0]);
847: my $anchor = $filecom[0];
848: $anchor =~ s/\W//g;
849: $r->print ('<a name="'.$anchor.'"></a>');
850: $r->print ('<input type="hidden" name="acts" value="" />');
851: $r->print ('<input src="'.$iconpath.'folder_pointer_'.
852: $diropen.'.gif"');
853: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
854: "\n");
855: my $quotable_filecom = &Apache::loncommon::escape_single($filecom[0]);
856: $r->print ('<a href="javascript:gothere(\''.$quotable_filecom.
857: '\')"><img alt="" src="'.$iconpath.'server.gif"');
858: $r->print (' class="LC_icon" /></a>'."\n");
859: $r->print (&mt("Domain")." - $listname ");
860: if (&Apache::lonnet::domain($listname,'description')) {
861: $r->print("(".&Apache::lonnet::domain($listname,'description').
862: ")");
863: }
864: $r->print ("</form>$tabtag</tr>\n");
865: return OK;
866:
867: # display user directory
868: }
869: if ($filecom[1] eq 'user') {
870: # $r->print("<tr valign=$valign bgcolor=\"$fileclr\">$extrafield");
871: my $curdir = $startdir.$filecom[0].'/';
872: my $anchor = $curdir;
873: $anchor =~ s/\W//g;
874: $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
875: &begin_form ($r,$curdir);
876: $r->print ('<a name="'.$anchor.'"></a><img alt="" src="'.$iconpath.
877: 'whitespace1.gif" class="LC_icon" />'."\n");
878: $r->print ('<input type="hidden" name="acts" value="" />');
879: $r->print ('<input src="'.$iconpath.'folder_pointer_'.$diropen.
880: '.gif"');
881: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
882: "\n");
883: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
884: $r->print ('<a href="javascript:gothere(\''.$quotable_curdir
885: .'\')"><img alt="'.$msg.'" src="'.
886: $iconpath.'quill.gif" class="LC_indexer_icon" /></a>');
887: my $domain=(split(m|/|,$startdir))[2];
888: my $plainname=&Apache::loncommon::plainname($listname,$domain);
889: $r->print ($listname);
890: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
891: $r->print ('</form>'.$tabtag.'</tr>'."\n");
892: return OK;
893: }
894:
895: # display file
896: if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
897: my $title;
898: my $filelink = $pathprefix.$filecom[0];
899: if ($hash{'display_attrs_0'} == 1) {
900: $title = &Apache::lonnet::gettitle($filelink);
901: }
902: my @file_ext = split (/\./,$listname);
903: my $curfext = $file_ext[-1];
904: if (@Omit) {
905: foreach (@Omit) { return OK if ($curfext eq $_); }
906: }
907: if (@Only) {
908: my $skip = 1;
909: foreach (@Only) { $skip = 0 if ($curfext eq $_); }
910: return OK if ($skip > 0);
911: }
912: # Set the icon for the file
913: my $iconname = &Apache::loncommon::icon($listname);
914: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\"><td nowrap='nowrap' valign='top'>");
915:
916: if ($env{'form.catalogmode'} eq 'interactive') {
917: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
918: $r->print("<a href=\"javascript:select_data(\'",
919: $quotable_filelink,"')\">");
920: $r->print("<img alt=\"\" src='",$iconpath,"select.gif' class='LC_icon' /></a>".
921: "\n");
922: $r->print("</td><td nowrap='nowrap' valign='top'>");
923: } elsif ($env{'form.catalogmode'} eq 'import') {
924: $r->print("<form name='form$fnum' action=''>\n");
925: $r->print("<input type='checkbox' name='filelink"."' ".
926: "value='$filelink' onClick='".
927: "javascript:queue(\"form$fnum\")' ");
928: if ($hash{'store_'.$filelink}) {
929: $r->print("checked");
930: }
931: $r->print(" />\n");
932: $r->print("</form></td><td nowrap='nowrap' valign='top'>");
933: $hash{"pre_${fnum}_link"}=$filelink;
934: $hash{"pre_${fnum}_title"}=$title;
935: if (!$hash{"pre_${fnum}_title"}) {
936: $hash{"pre_${fnum}_title"} = 'Not_retrieved';
937: }
938: $fnum++;
939: }
940: # Form to open or close sequences
941: if ($filelink=~/\.(page|sequence)$/) {
942: my $curdir = $startdir.$filecom[0].'/';
943: &begin_form($r,$curdir);
944: $indent--;
945: }
946: # General indentation
947: if ($indent > 0 and $indent < 11) {
948: $r->print("<img alt=\"\" src='",$iconpath,"whitespace",$indent,
949: ".gif' class='LC_icon' />\n");
950: } elsif ($indent >0) {
951: my $ten = int($indent/10.);
952: my $rem = $indent%10.0;
953: my $count = 0;
954: while ($count < $ten) {
955: $r->print("<img alt=\"\" src=".$iconpath.
956: "whitespace10.gif class='LC_icon' />\n");
957: $count++;
958: }
959: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
960: ".gif class='LC_icon' />\n") if $rem > 0;
961: }
962: # Sequence open/close icon
963: if ($filelink=~/\.(page|sequence)$/) {
964: my $curdir = $startdir.$filecom[0].'/';
965: my $anchor = $curdir;
966: $anchor =~ s/\W//g;
967: $r->print ('<input type="hidden" name="acts" value="" />');
968: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
969: 'folder_pointer_'.$diropen.'.gif"');
970: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
971: "\n");
972: }
973: # Filetype icons
974: $r->print("<img alt=\"\" src='$iconname' class='LC_icon' />\n");
975: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
976:
977: $r->print (" <a href=\"javascript:openWindow('".$quotable_filelink.
978: "?inhibitmenu=yes','previewfile','450','500','no','yes','yes');\"".
979: " target=\"_self\">$listname</a> ");
980: $quotable_filelink = &Apache::loncommon::escape_single($filelink.'.meta');
981: &Apache::loncommon::inhibit_menu_check(\$quotable_filelink);
982: $r->print (" (<a href=\"javascript:openWindow('".$quotable_filelink.
983: "?inhibitmenu=yes','metadatafile','500','550','no','yes','no');\" ".
984: " target=\"_self\">metadata</a>) ");
985: # Close form to open/close sequence
986: if ($filelink=~/\.(page|sequence)$/) {
987: $r->print('</form>');
988: }
989: $r->print("</td>\n");
990: if ($hash{'display_attrs_0'} == 1) {
991: $r->print('<td> '.($title eq '' ? ' ' : $title).
992: ' </td>'."\n");
993: }
994: $r->print('<td align=right> ',
995: $filecom[8]," </td>\n")
996: if $hash{'display_attrs_1'} == 1;
997: $r->print('<td> '.
998: (localtime($filecom[9]))." </td>\n")
999: if $hash{'display_attrs_2'} == 1;
1000: $r->print('<td> '.
1001: (localtime($filecom[10]))." </td>\n")
1002: if $hash{'display_attrs_3'} == 1;
1003:
1004: if ($hash{'display_attrs_4'} == 1) {
1005: my $author = &Apache::lonnet::metadata($filelink,'author');
1006: $r->print('<td> '.($author eq '' ? ' ' : $author).
1007: " </td>\n");
1008: }
1009: if ($hash{'display_attrs_5'} == 1) {
1010: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1011: # $keywords = ' ' if (!$keywords);
1012: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1013: " </td>\n");
1014: }
1015: #'
1016:
1017: if ($hash{'display_attrs_6'} == 1) {
1018: my $lang = &Apache::lonnet::metadata($filelink,'language');
1019: $lang = &Apache::loncommon::languagedescription($lang);
1020: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1021: " </td>\n");
1022: }
1023: if ($hash{'display_attrs_8'} == 1) {
1024: # statistics
1025: &dynmetaread($filelink);
1026: $r->print("<td>");
1027: &dynmetaprint($r,$filelink,'count');
1028: &dynmetaprint($r,$filelink,'course');
1029: &dynmetaprint($r,$filelink,'stdno');
1030: &dynmetaprint($r,$filelink,'avetries');
1031: &dynmetaprint($r,$filelink,'difficulty');
1032: &dynmetaprint($r,$filelink,'disc');
1033: &dynmetaprint($r,$filelink,'clear');
1034: &dynmetaprint($r,$filelink,'technical');
1035: &dynmetaprint($r,$filelink,'correct');
1036: &dynmetaprint($r,$filelink,'helpful');
1037: &dynmetaprint($r,$filelink,'depth');
1038: $r->print(" </td>\n");
1039:
1040: }
1041: if ($hash{'display_attrs_10'} == 1) {
1042: my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
1043: if($source eq 'open') {
1044: my $sourcelink = &Apache::lonsource::make_link($filelink,$listname);
1045: my $quotable_sourcelink = &Apache::loncommon::escape_single($sourcelink);
1046: &Apache::loncommon::inhibit_menu_check(\$quotable_sourcelink);
1047: $r->print('<td>'."<a href=\"javascript:openWindow('"
1048: .$quotable_sourcelink.
1049: "', 'previewsource', '700', '700', 'no', 'yes','yes');\"".
1050: " target=\"_self\">Yes</a> "."</td>\n");
1051: } else { #A cuddled else. :P
1052: $r->print("<td> </td>\n");
1053: }
1054: }
1055: if ($hash{'display_attrs_11'} == 1) {
1056: # links
1057: &dynmetaread($filelink);
1058: $r->print('<td>');
1059: &coursecontext($r,$filelink);
1060: &dynmetaprint($r,$filelink,'goto_list');
1061: &dynmetaprint($r,$filelink,'comefrom_list');
1062: &dynmetaprint($r,$filelink,'sequsage_list');
1063: &dynmetaprint($r,$filelink,'dependencies');
1064: &dynmetaprint($r,$filelink,'course_list');
1065: $r->print('</td>');
1066: }
1067: if ($hash{'display_attrs_7'} == 1) {
1068: # Show resource
1069: my $output=&showpreview($filelink);
1070: $r->print('<td> '.($output eq '' ? ' ':$output).
1071: " </td>\n");
1072: }
1073: $r->print("</tr>\n");
1074: }
1075:
1076: # -- display directory
1077: if ($fnptr == $dirptr) {
1078: my $curdir = $startdir.$filecom[0].'/';
1079: my $anchor = $curdir;
1080: $anchor =~ s/\W//g;
1081: $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
1082: &begin_form ($r,$curdir);
1083: my $indentm1 = $indent-1;
1084: if ($indentm1 < 11 and $indentm1 > 0) {
1085: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$indentm1,
1086: ".gif class='LC_icon' />\n");
1087: } else {
1088: my $ten = int($indentm1/10.);
1089: my $rem = $indentm1%10.0;
1090: my $count = 0;
1091: while ($count < $ten) {
1092: $r->print ("<img alt=\"\" src=",$iconpath
1093: ,"whitespace10.gif class='LC_icon' />\n");
1094: $count++;
1095: }
1096: $r->print ("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
1097: ".gif class='LC_icon' />\n") if $rem > 0;
1098: }
1099: $r->print ('<input type="hidden" name="acts" value="" />');
1100: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
1101: 'folder_pointer_'.$diropen.'.gif"');
1102: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
1103: "\n");
1104: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
1105: $r->print ('<a href="javascript:gothere(\''
1106: .$quotable_curdir.'\')">'
1107: .'<img alt="'.&mt('Open Folder').'"src="'.
1108: $iconpath.'folder_'.$diropen.'.gif" class="LC_icon" /></a>'.
1109: "\n");
1110: $r->print ("$listname</form></td>\n");
1111: # Attributes
1112: my $filelink = $startdir.$filecom[0].'/default';
1113:
1114: if ($hash{'display_attrs_0'} == 1) {
1115: my $title = &Apache::lonnet::gettitle($filelink);
1116: $r->print('<td> '.($title eq '' ? ' ' : $title).
1117: ' </td>'."\n");
1118: }
1119: $r->print('<td align=right> ',
1120: $filecom[8]," </td>\n")
1121: if $hash{'display_attrs_1'} == 1;
1122: $r->print('<td> '.
1123: (localtime($filecom[9]))." </td>\n")
1124: if $hash{'display_attrs_2'} == 1;
1125: $r->print('<td> '.
1126: (localtime($filecom[10]))." </td>\n")
1127: if $hash{'display_attrs_3'} == 1;
1128:
1129: if ($hash{'display_attrs_4'} == 1) {
1130: my $author = &Apache::lonnet::metadata($filelink,'author');
1131: $r->print('<td> '.($author eq '' ? ' ' : $author).
1132: " </td>\n");
1133: }
1134: if ($hash{'display_attrs_5'} == 1) {
1135: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1136: # $keywords = ' ' if (!$keywords);
1137: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1138: " </td>\n");
1139: }
1140: if ($hash{'display_attrs_6'} == 1) {
1141: my $lang = &Apache::lonnet::metadata($filelink,'language');
1142: $lang = &Apache::loncommon::languagedescription($lang);
1143: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1144: " </td>\n");
1145: }
1146: if ($hash{'display_attrs_8'} == 1) {
1147: $r->print('<td> </td>');
1148: }
1149: if ($hash{'display_attrs_10'} == 1) {
1150: $r->print('<td> </td>');
1151: }
1152: if ($hash{'display_attrs_11'} == 1) {
1153: $r->print('<td> </td>');
1154: }
1155: if ($hash{'display_attrs_7'} == 1) {
1156: $r->print('<td> </td>');
1157: }
1158: $r->print('</tr>');
1159: }
1160:
1161: }
1162:
1163: sub coursecontext {
1164: my ($r,$filelink)=@_;
1165: my $filesymb=&Apache::lonnet::symbread($filelink);
1166: if ($filesymb) {
1167: my ($map,$index,$resource)=&Apache::lonnet::decode_symb($filesymb);
1168: $r->print(&mt('Already in this course:<br />[_1] in folder/map [_2].<br />',
1169: &Apache::lonnet::gettitle($resource),
1170: &Apache::lonnet::gettitle($map)));
1171: }
1172: }
1173:
1174: sub showpreview {
1175: my ($filelink)=@_;
1176: if ($filelink=~m-^(/ext/|http://)-) {
1177: return &mt('External Resource, preview not enabled');
1178: }
1179: my ($curfext)=($filelink=~/\.(\w+)$/);
1180: my $output='';
1181: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
1182: if ($embstyle eq 'ssi') {
1183: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
1184: '.tmp';
1185: if ((!$env{'form.updatedisplay'}) &&
1186: (-e $cache)) {
1187: open(FH,$cache);
1188: $output=join("\n",<FH>);
1189: close(FH);
1190: } else {
1191: # In update display mode, remove old cache. This is done to retroactively
1192: # clean up course context renderings.
1193: if (-e $cache) {
1194: unlink($cache);
1195: }
1196: $output=&Apache::lonnet::ssi_body($filelink);
1197: # Is access denied? Don't render, don't store
1198: if ($output=~/LONCAPAACCESSCONTROLERRORSCREEN/s) {
1199: $output='';
1200: # Was this rendered in course content? Don't store
1201: } elsif (!&Apache::lonnet::symbread($filelink)) {
1202: open(FH,">$cache");
1203: print FH $output;
1204: close(FH);
1205: }
1206: }
1207: $output='<font size="-2">'.$output.'</font>';
1208: } elsif ($embstyle eq 'img') {
1209: $output='<img alt="'.&mt('Preview').'" src="'.$filelink.'" />';
1210: } elsif ($filelink=~m{^/res/($match_domain)/($match_username)/}) {
1211: $output='<img alt="'.&mt('Preview').'" src="http://'.
1212: &Apache::lonnet::hostname(&Apache::lonnet::homeserver($2,$1)).
1213: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1214: }
1215: return $output;
1216: }
1217:
1218: sub dynmetaprint {
1219: my ($r,$filelink,$item)=@_;
1220: if ($dynhash{$filelink}->{$item}) {
1221: $r->print("\n<br />".$fieldnames{$item}.': '.
1222: &Apache::lonmeta::prettyprint($item,
1223: $dynhash{$filelink}->{$item},
1224: (($env{'form.catalogmode'} ne 'import')?'preview':''),
1225: '',
1226: (($env{'form.catalogmode'} eq 'import')?'document.forms.fileattr':''),1));
1227: }
1228: }
1229:
1230: # ------------------- prints the beginning of a form for directory or file link
1231: sub begin_form {
1232: my ($r,$uri) = @_;
1233: my $anchor = $uri;
1234: $anchor =~ s/\W//g;
1235: $uri=&Apache::loncommon::escape_single($uri);
1236: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1237: '#'.$anchor.
1238: '" onSubmit="return rep_dirpath(\''.$dnum.'\''.
1239: ',document.forms.fileattr.acts.value)" '.
1240: 'enctype="application/x-www-form-urlencoded">'."\n");
1241: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'" />'.
1242: "\n");
1243: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n");
1244: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
1245: $dnum++;
1246: }
1247:
1248: # --------- settings whenever the user causes the indexer window to be launched
1249: sub start_fresh_session {
1250: my ($hash) = @_;
1251: delete $hash->{'form.catalogmode'};
1252: delete $hash->{'form.mode'};
1253: delete $hash->{'form.form'};
1254: delete $hash->{'form.element'};
1255: delete $hash->{'form.omit'};
1256: delete $hash->{'form.only'};
1257: foreach (keys %{$hash}) {
1258: delete $hash->{$_} if (/^(pre_|store)/);
1259: }
1260: }
1261:
1262: # ------------------------------------------------------------------- setvalues
1263: sub setvalues {
1264: # setvalues is used in registerurl to synchronize the database
1265: # hash and environment hashes
1266: my ($H1,$h1key,$H2,$h2key) =@_;
1267: #
1268: if (exists $H2->{$h2key}) {
1269: $H1->{$h1key} = $H2->{$h2key};
1270: } elsif (exists $H1->{$h1key}) {
1271: $H2->{$h2key} = $H1->{$h1key};
1272: }
1273: }
1274:
1275: 1;
1276:
1277: sub cleanup {
1278: if (tied(%hash)){
1279: &Apache::lonnet::logthis('Cleanup indexer: hash');
1280: }
1281: return OK;
1282: }
1283:
1284:
1285:
1286:
1287:
1288: =head1 NAME
1289:
1290: Apache::lonindexer - mod_perl module for cross server filesystem browsing
1291:
1292: =head1 SYNOPSIS
1293:
1294: Invoked by /etc/httpd/conf/srm.conf:
1295:
1296: <LocationMatch "^/res.*/$">
1297: SetHandler perl-script
1298: PerlHandler Apache::lonindexer
1299: </LocationMatch>
1300:
1301: =head1 INTRODUCTION
1302:
1303: This module enables a scheme of browsing across a cross server.
1304:
1305: This is part of the LearningOnline Network with CAPA project
1306: described at http://www.lon-capa.org.
1307:
1308: =head1 BEGIN SUBROUTINE
1309:
1310: This routine is only run once after compilation.
1311:
1312: =over 4
1313:
1314: =item *
1315:
1316: Initializes %language hash table.
1317:
1318: =back
1319:
1320: =head1 HANDLER SUBROUTINE
1321:
1322: This routine is called by Apache and mod_perl.
1323:
1324: =over 4
1325:
1326: =item *
1327:
1328: read in machine configuration variables
1329:
1330: =item *
1331:
1332: see if called from an interactive mode
1333:
1334: =item *
1335:
1336: refresh environment with user database values (in %hash)
1337:
1338: =item *
1339:
1340: define extra fields and buttons in case of special mode
1341:
1342: =item *
1343:
1344: set catalogmodefunctions to have extra needed javascript functionality
1345:
1346: =item *
1347:
1348: print header
1349:
1350: =item *
1351:
1352: evaluate actions from previous page (both cumulatively and chronologically)
1353:
1354: =item *
1355:
1356: output title
1357:
1358: =item *
1359:
1360: get state of file attributes to be showing
1361:
1362: =item *
1363:
1364: output state of file attributes to be showing
1365:
1366: =item *
1367:
1368: output starting row to the indexed file/directory hierarchy
1369:
1370: =item *
1371:
1372: read in what directories have previously been set to "open"
1373:
1374: =item *
1375:
1376: if not at top level, provide an uplink arrow
1377:
1378: =item *
1379:
1380: recursively go through all the directories and output as appropriate
1381:
1382: =item *
1383:
1384: information useful for group import
1385:
1386: =item *
1387:
1388: end the tables
1389:
1390: =item *
1391:
1392: end the output and return
1393:
1394: =back
1395:
1396: =head1 OTHER SUBROUTINES
1397:
1398: =over 4
1399:
1400: =item *
1401:
1402: scanDir - recursive scan of a directory
1403:
1404: =item *
1405:
1406: get_list - get complete matched list based on the uri (returns an array)
1407:
1408: =item *
1409:
1410: match_ext - filters out files based on extensions (returns an array)
1411:
1412: =item *
1413:
1414: display_line - displays one line in appropriate table format
1415:
1416: =item *
1417:
1418: begin_form - prints the beginning of a form for directory or file link
1419:
1420: =item *
1421:
1422: start_fresh_session - settings whenever the user causes the indexer window
1423: to be launched
1424:
1425: =back
1426:
1427: =cut
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