1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.172 2007/07/11 23:51:19 albertel Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: ###
29:
30: ###############################################################################
31: ## ##
32: ## ORGANIZATION OF THIS PERL MODULE ##
33: ## ##
34: ## 1. Description of functions ##
35: ## 2. Modules used by this module ##
36: ## 3. Choices for different output views (detailed, summary, xml, etc) ##
37: ## 4. BEGIN block (to be run once after compilation) ##
38: ## 5. Handling routine called via Apache and mod_perl ##
39: ## 6. Other subroutines ##
40: ## ##
41: ###############################################################################
42:
43: package Apache::lonindexer;
44:
45: # ------------------------------------------------- modules used by this module
46: use strict;
47: use Apache::lonnet;
48: use Apache::loncommon();
49: use Apache::lonhtmlcommon();
50: use Apache::lonsequence();
51: use Apache::Constants qw(:common);
52: use Apache::lonmeta;
53: use Apache::File;
54: use Apache::lonlocal;
55: use Apache::lonsource();
56: use 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: }
273: function select_group() {
274: window.location="$location"+document.forms.fileattr.acts.value;
275: }
276:
277: function changeURL(val) {
278: if (window.opener.document) {
279: window.opener.document.forms["$form"].elements["$element"].value=val;
280: } else {
281: alert("The file you selected is: "+val);
282: }
283: }
284: END
285: if (!$titleelement) {
286: $catalogmodefunctions.='function changeTitle(val) {}';
287: } else {
288: $catalogmodefunctions.=<<END;
289: function changeTitle(val) {
290: if (window.opener.document) {
291: window.opener.document.forms["$form"].elements["$titleelement"].value=val;
292: } else {
293: alert("The title of the file you selected is: "+val);
294: }
295: }
296: END
297: }
298: } elsif ($mode eq 'parmset') {
299: my $location = "/adm/groupsort?catalogmode=interactive&";
300: $location .= "form=$form&element=$element&mode=parmset&acts=";
301: $catalogmodefunctions=<<END;
302: // mode = $mode
303: function select_data(url) {
304: changeURL(url);
305: self.close();
306: }
307:
308: function select_group() {
309: window.location="$location"+document.forms.fileattr.acts.value;
310: }
311:
312: function changeURL(val) {
313: if (window.opener.document) {
314: var elementname = "$element"+"_value";
315: var checkboxname = "$element"+"_setparmval";
316: window.opener.document.forms["$form"].elements[elementname].value=val;
317: window.opener.document.forms["$form"].elements[checkboxname].checked=true;
318: } else {
319: alert("The file you selected is: "+val);
320: }
321: }
322:
323: END
324: }
325: }
326: $catalogmodefunctions.=<<END;
327: var acts='';
328: function rep_dirpath(suffix,val) {
329: eval("document.forms.dirpath"+suffix+".acts.value=val");
330: }
331: END
332: if ($env{'form.catalogmode'} eq 'import') {
333: $catalogmodefunctions.=<<END;
334: function queue(val) {
335: if (eval("document.forms."+val+".filelink.checked")) {
336: var l=val.length;
337: var v=val.substring(4,l);
338: document.forms.fileattr.acts.value+='1a'+v+'b';
339: }
340: else {
341: var l=val.length;
342: var v=val.substring(4,l);
343: document.forms.fileattr.acts.value+='0a'+v+'b';
344: }
345: }
346: END
347: }
348:
349: my $inhibit_menu = "+'&".&Apache::loncommon::inhibit_menu_check()."'";
350: # ---------------------------------------------------------------- Print Header
351:
352: my $js = <<"ENDHEADER";
353: <script type="text/javascript">
354: $catalogmodefunctions
355: function checkAll() {
356: var numForms = document.forms.length;
357: for (i=0;i<numForms;i++) {
358: var numElements = document.forms[i].elements.length;
359: for (j=0;j<numElements;j++){
360: var fieldName = document.forms[i].elements[j].name;
361: if (fieldName == 'filelink') {
362: document.forms[i].elements[j].checked = true;
363: queue(document.forms[i].name);
364: }
365: }
366: }
367: }
368: function uncheckAll() {
369: var numForms = document.forms.length;
370: for (i=0;i<numForms;i++) {
371: var numElements = document.forms[i].elements.length;
372: for (j=0;j<numElements;j++){
373: var fieldName = document.forms[i].elements[j].name;
374: if (fieldName == 'filelink') {
375: document.forms[i].elements[j].checked = false;
376: queue(document.forms[i].name);
377: }
378: }
379: }
380: }
381: function openWindow(url, wdwName, w, h, toolbar,scrollbar,locationbar) {
382: var xpos = (screen.width-w)/2;
383: xpos = (xpos < 0) ? '0' : xpos;
384: var ypos = (screen.height-h)/2-30;
385: ypos = (ypos < 0) ? '0' : ypos;
386: var options = "width=" + w + ",height=" + h + ",screenx="+xpos+",screeny="+ypos+",";
387: options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
388: options += "menubar=no,toolbar="+toolbar+",location="+locationbar+",directories=no";
389: var newWin = window.open(url, wdwName, options);
390: newWin.focus();
391: }
392: function gothere(val) {
393: window.location=val+'?acts='+document.forms.fileattr.acts.value$inhibit_menu;
394: }
395: </script>
396: ENDHEADER
397:
398: my ($headerdom)=($uri=~m{^/res/($match_domain)/});
399: $r->print(&Apache::loncommon::start_page('Browse Resources',$js,
400: {'domain' => $headerdom,}));
401: # - Evaluate actions from previous page (both cumulatively and chronologically)
402: if ($env{'form.catalogmode'} eq 'import') {
403: &Apache::groupsort::update_actions_hash(\%hash);
404: }
405:
406: # ---------------------------------- get state of file attributes to be showing
407: if ($env{'form.attrs'}) {
408: for (my $i=0; $i<=11; $i++) {
409: delete $hash{'display_attrs_'.$i};
410: if ($env{'form.attr'.$i} == 1) {
411: $attrchk[$i] = 'checked';
412: $hash{'display_attrs_'.$i} = 1;
413: }
414: }
415: } else {
416: for (my $i=0; $i<=11; $i++) {
417: $attrchk[$i] = 'checked' if $hash{'display_attrs_'.$i} == 1;
418: }
419: }
420:
421: # ------------------------------- output state of file attributes to be showing
422: # All versions has to the last item
423: # since it does not take an extra col
424: my %lt=&Apache::lonlocal::texthash(
425: 'ti' => 'Title',
426: 'si' => 'Size',
427: 'la' => 'Last access',
428: 'lm' => 'Last modified',
429: 'st' => 'Statistics',
430: 'au' => 'Author',
431: 'kw' => 'Keywords',
432: 'ln' => 'Language',
433: 'sa' => 'Source Available',
434: 'sr' => 'Show resource',
435: 'li' => 'Linked/Related Resources',
436: 'av' => 'All versions',
437: 'ud' => 'Update Display'
438: );
439: $r->print(<<END);
440: <form method="post" name="fileattr" action="$uri"
441: enctype="application/x-www-form-urlencoded">
442: <label><input type="checkbox" name="attr9" value="1" $attrchk[9] onClick="this.form.submit();" /> $lt{'av'}</label>
443: <table border="0">
444: <tr>
445: <td><label><input type="checkbox" name="attr0" value="1" $attrchk[0] onClick="this.form.submit();" /> $lt{'ti'}</label></td>
446: <td><label><input type="checkbox" name="attr4" value="1" $attrchk[4] onClick="this.form.submit();" /> $lt{'au'}</label></td>
447: <td><label><input type="checkbox" name="attr5" value="1" $attrchk[5] onClick="this.form.submit();" /> $lt{'kw'}</label></td>
448: <td><label><input type="checkbox" name="attr6" value="1" $attrchk[6] onClick="this.form.submit();" /> $lt{'ln'}</label></td>
449: </tr>
450: <tr>
451: <td><label><input type="checkbox" name="attr1" value="1" $attrchk[1] onClick="this.form.submit();" /> $lt{'si'}</label></td>
452: <td><label><input type="checkbox" name="attr2" value="1" $attrchk[2] onClick="this.form.submit();" /> $lt{'la'}</label></td>
453: <td><label><input type="checkbox" name="attr3" value="1" $attrchk[3] onClick="this.form.submit();" /> $lt{'lm'}</label></td>
454: <td><label><input type="checkbox" name="attr10" value="1" $attrchk[10] onClick="this.form.submit();" /> $lt{'sa'}</label></td>
455: </tr>
456: <tr>
457: <td><label><input type="checkbox" name="attr8" value="1" $attrchk[8] onClick="this.form.submit();" /> $lt{'st'}</label></td>
458: <td><label><input type="checkbox" name="attr11" value="1" $attrchk[11] onClick="this.form.submit();" /> $lt{'li'}</label></td>
459: <td><label><input type="checkbox" name="attr7" value="1" $attrchk[7] onClick="this.form.submit();" /> $lt{'sr'}</label></td>
460: <td> </td>
461: </tr>
462: </table>
463: <input type="hidden" name="attrs" value="1" />
464: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
465: <input type="hidden" name="acts" value="" />
466: $closebutton $groupimportbutton
467: END
468: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
469: # -------------- Filter out sequence containment in crumbs and "recent folders"
470: my $storeuri=$uri;
471: $storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
472: $storeuri=~s/\/+/\//g;
473: # ---------------------------------------------------------------- Bread crumbs
474: $r->print(&Apache::lonhtmlcommon::crumbs($storeuri,'','',
475: (($env{'form.catalogmode'} eq 'import')?
476: 'document.forms.fileattr':'')).
477: &Apache::lonhtmlcommon::select_recent('residx','resrecent',
478: '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();'));
479: # -------------------------------------------------------- Resource Home Button
480: my $reshome=$env{'course.'.$env{'request.course.id'}.'.reshome'};
481: if ($reshome) {
482: $r->print("<font size='+2'><a href='");
483: if ($env{'form.catalogmode'} eq 'import') {
484: $r->print('javascript:document.forms.fileattr.action="'.&Apache::loncommon::inhibit_menu_check($reshome).'";document.forms.fileattr.submit();');
485: } else {
486: $r->print($reshome);
487: }
488: $r->print("'>".&mt('Home').'</a></font>');
489: }
490: $r->print('</form>');
491: # ------------------------------------------------------ Remember where we were
492: &Apache::loncommon::storeresurl($storeuri);
493: &Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
494: # -------------------------------------------------- Check All and Uncheck all
495: if ($env{'form.catalogmode'} eq 'import') {
496: $r->print('<br /><input type="button" value="'.&mt("Check All").'" id="checkallbutton" onClick="javascript:checkAll()" />');
497: $r->print('<input type="button" value="'.&mt("Uncheck All").'" id="uncheckallbutton" onClick="javascript:uncheckAll()" />');
498: }
499: # ----------------- output starting row to the indexed file/directory hierarchy
500: my $titleclr="#ddffff";
501: #$r->print(&initdebug());
502: #$r->print(&writedebug("Omit:@Omit")) if (@Omit);
503: #$r->print(&writedebug("Only:@Only")) if (@Only);
504: $r->print('<table width="100%" border="0"><tr><td bgcolor="#777777">'."\n");
505: $r->print('<table width="100%" border="0"><tr bgcolor="'.$titleclr.'">'."\n");
506: $r->print("<td $colspan><b>".&mt('Name')."</b></td>\n");
507: $r->print("<td><b>".&mt('Title')."</b></td>\n")
508: if ($hash{'display_attrs_0'} == 1);
509: $r->print("<td align=right><b>".&mt("Size")." (".&mt("bytes").") ".
510: "</b></td>\n") if ($hash{'display_attrs_1'} == 1);
511: $r->print("<td><b>".&mt("Last accessed")."</b></td>\n")
512: if ($hash{'display_attrs_2'} == 1);
513: $r->print("<td><b>".&mt("Last modified")."</b></td>\n")
514: if ($hash{'display_attrs_3'} == 1);
515: $r->print("<td><b>".&mt("Author(s)")."</b></td>\n")
516: if ($hash{'display_attrs_4'} == 1);
517: $r->print("<td><b>".&mt("Keywords")."</b></td>\n")
518: if ($hash{'display_attrs_5'} == 1);
519: $r->print("<td><b>".&mt("Language")."</b></td>\n")
520: if ($hash{'display_attrs_6'} == 1);
521: $r->print("<td><b>".&mt("Usage Statistics")." <br />(".
522: &mt("Courses/Network Hits").")</b> ".&mt('updated periodically')."</td>\n")
523: if ($hash{'display_attrs_8'} == 1);
524: $r->print("<td><b>".&mt("Source Available")."</b></td>\n")
525: if ($hash{'display_attrs_10'} == 1);
526: $r->print("<td><b>".&mt("Linked/Related Resources")."</b></td>\n")
527: if ($hash{'display_attrs_11'} == 1);
528: $r->print("<td><b>".&mt("Resource")."</b></td>\n")
529: if ($hash{'display_attrs_7'} == 1);
530: $r->print('</tr>');
531:
532: # ----------------- read in what directories have previously been set to "open"
533: foreach (keys %hash) {
534: if ($_ =~ /^diropen_status_/) {
535: my $key = $_;
536: $key =~ s/^diropen_status_//;
537: $dirs{$key} = $hash{$_};
538: }
539: }
540:
541: if ($env{'form.openuri'}) { # take care of review and refresh options
542: my $uri=$env{'form.openuri'};
543: if (exists($hash{'diropen_status_'.$uri})) {
544: my $cursta = $hash{'diropen_status_'.$uri};
545: $dirs{$uri} = 'open';
546: $hash{'diropen_status_'.$uri} = 'open';
547: if ($cursta eq 'open') {
548: $dirs{$uri} = 'closed';
549: $hash{'diropen_status_'.$uri} = 'closed';
550: }
551: } else {
552: $hash{'diropen_status_'.$uri} = 'open';
553: $dirs{$uri} = 'open';
554: }
555: }
556:
557: my $toplevel;
558: my $indent = 0;
559: $uri = $uri.'/' if $uri !~ /.*\/$/;
560:
561: if ($env{'form.dirPointer'} ne 'on') {
562: $hash{'top.level'} = $uri;
563: $toplevel = $uri;
564: } else {
565: $toplevel = $hash{'top.level'};
566: }
567:
568: # -------------------------------- if not at top level, provide an uplink arrow
569: if ($toplevel ne '/res/'){
570: my (@uri_com) = split(/\//,$uri);
571: pop @uri_com;
572: my $upone = join('/',@uri_com);
573: my @list = qw (0);
574: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
575: $indent = 1;
576: }
577:
578: # -------- recursively go through all the directories and output as appropriate
579: &scanDir ($r,$toplevel,$indent,\%hash);
580:
581:
582: # -------------------------------------------------------------- end the tables
583: $r->print('</table>');
584: # ---------------------------- embed hidden information useful for group import
585: $r->print("<form name='fnum' action=''>");
586: $r->print("<input type='hidden' name='fnum' value='$fnum' /></form>");
587: # -------------------------------------------------------------- end the tables
588: $r->print('</td></tr></table>');
589:
590: # --------------------------------------------------- end the output and return
591: $r->print(&Apache::loncommon::end_page()."\n");
592: }
593: if(! $c->aborted()) {
594: # write back into the temporary file
595: my %dbfile;
596: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
597: while (my($key,$value) = each(%hash)) {
598: $dbfile{$key}=$value;
599: }
600: untie(%dbfile);
601: }
602: }
603:
604: return OK;
605: }
606:
607: # ----------------------------------------------- recursive scan of a directory
608: sub scanDir {
609: my ($r,$startdir,$indent,$hashref)=@_;
610: my $c = $r->connection();
611: my ($compuri,$curdir);
612: my $dirptr=16384;
613: my $obs;
614: $indent++;
615: my %dupdirs = %dirs;
616: my @list=&get_list($r,$startdir);
617: foreach my $line (@list) {
618: return if ($c->aborted());
619: #This is a kludge, sorry aboot this
620: my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
621: next if($strip =~ /.*\.meta$/ | $obs eq '1');
622: my (@fileparts) = split(/\./,$strip);
623: if ($hash{'display_attrs_9'} != 1) {
624: # if not all versions to be shown
625: if (scalar(@fileparts) >= 3) {
626: my $fext = pop @fileparts;
627: my $ov = pop @fileparts;
628: my $fname = join ('.',@fileparts,$fext);
629: next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
630: }
631: }
632:
633: if ($dom eq 'domain') {
634: # dom list has full path /res/<domain name>/ already
635: $curdir='';
636: $compuri = (split(/\&/,$line))[0];
637: } else {
638: # user, dir & file have name only, i.e., w/o path
639: $compuri = join('',$startdir,$strip,'/');
640: $curdir = $startdir;
641: }
642: my $diropen = 'closed';
643: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
644: while (my ($key,$val)= each %dupdirs) {
645: if ($key eq $compuri and $val eq "open") {
646: $diropen = "opened";
647: delete($dupdirs{$key});
648: delete($dirs{$key});
649: }
650: }
651: }
652: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
653: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
654: }
655: $indent--;
656: }
657:
658: # --------------- get complete matched list based on the uri (returns an array)
659: sub get_list {
660: my ($r,$uri)=@_;
661: my @list=();
662: (my $luri = $uri) =~ s/\//_/g;
663: if ($env{'form.updatedisplay'}) {
664: foreach (keys %hash) {
665: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
666: delete $hash{$_} if ($_ =~ /^dirlist_timestamp_files_/);
667: }
668: }
669:
670: if (defined($hash{'dirlist_files_'.$luri}) &&
671: $hash{'dirlist_timestamp_files_'.$luri}+600 > (time)) {
672: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
673: } elsif ($uri=~/\.(page|sequence)\/$/) {
674: # is a page or a sequence
675: $uri=~s/\/$//;
676: $uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
677: $uri=~s/\/+/\//g;
678: foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
679: my @ratpart=split(/\:/,$_);
680: push(@list,&LONCAPA::map::qtescape($ratpart[1]));
681: }
682: $hash{'dirlist_files_'.$luri} = join("\n",@list);
683: } else {
684: # is really a directory
685: @list = &Apache::lonnet::dirlist($uri);
686: $hash{'dirlist_files_'.$luri} = join("\n",@list);
687: $hash{'dirlist_timestamp_files_'.$luri} = time;
688: }
689: return @list=&match_ext($r,@list);
690: }
691:
692: sub dynmetaread {
693: my $uri=shift;
694: if (($hash{'display_attrs_8'}==1) || ($hash{'display_attrs_11'}==1)) {
695: # We don't want the filename
696: $uri=~s/\/[^\/]+$//;
697: # Did we already see this?
698: my $builddir=$uri;
699: while ($builddir) {
700: if ($dynread{$builddir}) {
701: return 0;
702: }
703: $builddir=~s/\/[^\/]+$//;
704: }
705: # Actually get the data
706: %dynhash=
707: (%dynhash,&Apache::lonmeta::get_dynamic_metadata_from_sql($uri.'/'));
708: # Remember that we got it
709: $dynread{$uri}=1;
710: }
711: }
712:
713: sub initdebug {
714: my $start_page=
715: &Apache::loncommon::start_page('Debug',undef,
716: {'only_body' => 1,});
717: $start_page =~ s/\n/ /g;
718: return <<ENDJS;
719: <script type="text/javascript">
720: var debugging = true;
721: if (debugging) {
722: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
723: }
724:
725: function output(text) {
726: if (debugging) {
727: debuggingWindow.document.writeln(text);
728: }
729: }
730: output('$start_page<pre>');
731: </script>
732: ENDJS
733: }
734:
735: sub writedebug {
736: my ($text) = @_;
737: return "<script type=\"text/javascript\">output('$text');</script>";
738: }
739:
740: # -------------------- filters out files based on extensions (returns an array)
741: sub match_ext {
742: my ($r,@packlist)=@_;
743: my @trimlist;
744: my $nextline;
745: my @fileext;
746: my $dirptr=16384;
747:
748: foreach my $line (@packlist) {
749: chomp $line;
750: $line =~ s/^\/home\/httpd\/html//;
751: my @unpackline = split (/\&/,$line);
752: next if ($unpackline[0] eq '.');
753: next if ($unpackline[0] eq '..');
754: my @filecom = split (/\./,$unpackline[0]);
755: my $fext = pop(@filecom);
756: my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
757: if ($fnptr == 0 and $unpackline[3] ne "") {
758: my $embstyle = &Apache::loncommon::fileembstyle($fext);
759: push @trimlist,$line if (defined($embstyle) &&
760: ($embstyle ne 'hdn' or $fext eq 'meta'));
761: } else {
762: push @trimlist,$line;
763: }
764: }
765: @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
766: return @trimlist;
767: }
768:
769: # ------------------------------- displays one line in appropriate table format
770: sub display_line {
771: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
772: my (@pathfn, $fndir);
773: # there could be relative paths (files actually belonging into this directory)
774: # or absolute paths (for example, from sequences)
775: my $absolute;
776: my $pathprefix;
777: if ($line=~m|^/res/| && $startdir ne '') {
778: $absolute=1;
779: $pathprefix='';
780: } else {
781: $absolute=0;
782: $pathprefix=$startdir;
783: }
784: my $dirptr=16384;
785: my $fileclr="#ffffe6";
786: my $iconpath= $r->dir_config('lonIconsURL') . '/';
787:
788: my @filecom = split (/\&/,$line);
789: my @pathcom = split (/\//,$filecom[0]);
790: my $listname = $pathcom[scalar(@pathcom)-1];
791: my $fnptr = $filecom[3]&$dirptr;
792: my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
793: $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
794:
795: my $tabtag='</td>';
796: my $i=0;
797: while ($i<=11) {
798: $tabtag=join('',$tabtag,"<td> </td>")
799: if ($i != 9 &&
800: $hash{'display_attrs_'.$i} == 1);
801: $i++;
802: }
803: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
804:
805: # display uplink arrow
806: if ($filecom[1] eq 'viewOneUp') {
807: my $updir=$startdir;
808: # -------------- Filter out sequence containment in crumbs and "recent folders"
809: $updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
810: $updir=~s/\/+/\//g;
811:
812: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
813: $r->print("<td>\n");
814: $r->print ('<form method="post" name="dirpathUP" action="'.$updir.
815: '/" '.
816: 'onSubmit="return rep_dirpath(\'UP\','.
817: 'document.forms.fileattr.acts.value)" '.
818: 'enctype="application/x-www-form-urlencoded"'.
819: '>'."\n");
820: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
821: $r->print ('<input type=hidden name=openuri value="'.
822: $startdir.'" />'."\n");
823: $r->print ('<input type="hidden" name="acts" value="" />'."\n");
824: $r->print ('<input src="'.$iconpath.'arrow_up.gif"');
825: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
826: "\n");
827: $r->print(&mt("Up")."</form>$tabtag</tr>\n");
828: return OK;
829: }
830: # Do we have permission to look at this?
831:
832: if($filecom[15] ne '1') { return OK if (!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])); }
833:
834: # make absolute links appear on different background
835: if ($absolute) { $fileclr='#ccdd99'; }
836:
837: # display domain
838: if ($filecom[1] eq 'domain') {
839: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n")
840: if ($env{'form.dirPointer'} eq "on");
841: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
842: $r->print("<td>");
843: &begin_form ($r,$filecom[0]);
844: my $anchor = $filecom[0];
845: $anchor =~ s/\W//g;
846: $r->print ('<a name="'.$anchor.'"></a>');
847: $r->print ('<input type="hidden" name="acts" value="" />');
848: $r->print ('<input src="'.$iconpath.'folder_pointer_'.
849: $diropen.'.gif"');
850: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
851: "\n");
852: my $quotable_filecom = &Apache::loncommon::escape_single($filecom[0]);
853: $r->print ('<a href="javascript:gothere(\''.$quotable_filecom.
854: '\')"><img alt="" src="'.$iconpath.'server.gif"');
855: $r->print (' class="LC_icon" /></a>'."\n");
856: $r->print (&mt("Domain")." - $listname ");
857: if (&Apache::lonnet::domain($listname,'description')) {
858: $r->print("(".&Apache::lonnet::domain($listname,'description').
859: ")");
860: }
861: $r->print ("</form>$tabtag</tr>\n");
862: return OK;
863:
864: # display user directory
865: }
866: if ($filecom[1] eq 'user') {
867: # $r->print("<tr valign=$valign bgcolor=\"$fileclr\">$extrafield");
868: my $curdir = $startdir.$filecom[0].'/';
869: my $anchor = $curdir;
870: $anchor =~ s/\W//g;
871: $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
872: &begin_form ($r,$curdir);
873: $r->print ('<a name="'.$anchor.'"></a><img alt="" src="'.$iconpath.
874: 'whitespace1.gif" class="LC_icon" />'."\n");
875: $r->print ('<input type="hidden" name="acts" value="" />');
876: $r->print ('<input src="'.$iconpath.'folder_pointer_'.$diropen.
877: '.gif"');
878: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
879: "\n");
880: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
881: $r->print ('<a href="javascript:gothere(\''.$quotable_curdir
882: .'\')"><img alt="'.$msg.'" src="'.
883: $iconpath.'quill.gif" class="LC_indexer_icon" /></a>');
884: my $domain=(split(m|/|,$startdir))[2];
885: my $plainname=&Apache::loncommon::plainname($listname,$domain);
886: $r->print ($listname);
887: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
888: $r->print ('</form>'.$tabtag.'</tr>'."\n");
889: return OK;
890: }
891:
892: # display file
893: if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
894: my $title;
895: my $filelink = $pathprefix.$filecom[0];
896: if ($hash{'display_attrs_0'} == 1) {
897: $title = &Apache::lonnet::gettitle($filelink);
898: }
899: my @file_ext = split (/\./,$listname);
900: my $curfext = $file_ext[-1];
901: if (@Omit) {
902: foreach (@Omit) { return OK if ($curfext eq $_); }
903: }
904: if (@Only) {
905: my $skip = 1;
906: foreach (@Only) { $skip = 0 if ($curfext eq $_); }
907: return OK if ($skip > 0);
908: }
909: # Set the icon for the file
910: my $iconname = &Apache::loncommon::icon($listname);
911: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\"><td nowrap='nowrap' valign='top'>");
912:
913: if ($env{'form.catalogmode'} eq 'interactive') {
914: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
915: $r->print("<a href=\"javascript:select_data(\'",
916: $quotable_filelink,"')\">");
917: $r->print("<img alt=\"\" src='",$iconpath,"select.gif' class='LC_icon' /></a>".
918: "\n");
919: $r->print("</td><td nowrap='nowrap' valign='top'>");
920: } elsif ($env{'form.catalogmode'} eq 'import') {
921: $r->print("<form name='form$fnum' action=''>\n");
922: $r->print("<input type='checkbox' name='filelink"."' ".
923: "value='$filelink' onClick='".
924: "javascript:queue(\"form$fnum\")' ");
925: if ($hash{'store_'.$filelink}) {
926: $r->print("checked");
927: }
928: $r->print(" />\n");
929: $r->print("</form></td><td nowrap='nowrap' valign='top'>");
930: $hash{"pre_${fnum}_link"}=$filelink;
931: $hash{"pre_${fnum}_title"}=$title;
932: if (!$hash{"pre_${fnum}_title"}) {
933: $hash{"pre_${fnum}_title"} = 'Not_retrieved';
934: }
935: $fnum++;
936: }
937: # Form to open or close sequences
938: if ($filelink=~/\.(page|sequence)$/) {
939: my $curdir = $startdir.$filecom[0].'/';
940: &begin_form($r,$curdir);
941: $indent--;
942: }
943: # General indentation
944: if ($indent > 0 and $indent < 11) {
945: $r->print("<img alt=\"\" src='",$iconpath,"whitespace",$indent,
946: ".gif' class='LC_icon' />\n");
947: } elsif ($indent >0) {
948: my $ten = int($indent/10.);
949: my $rem = $indent%10.0;
950: my $count = 0;
951: while ($count < $ten) {
952: $r->print("<img alt=\"\" src=".$iconpath.
953: "whitespace10.gif class='LC_icon' />\n");
954: $count++;
955: }
956: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
957: ".gif class='LC_icon' />\n") if $rem > 0;
958: }
959: # Sequence open/close icon
960: if ($filelink=~/\.(page|sequence)$/) {
961: my $curdir = $startdir.$filecom[0].'/';
962: my $anchor = $curdir;
963: $anchor =~ s/\W//g;
964: $r->print ('<input type="hidden" name="acts" value="" />');
965: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
966: 'folder_pointer_'.$diropen.'.gif"');
967: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
968: "\n");
969: }
970: # Filetype icons
971: $r->print("<img alt=\"\" src='$iconname' class='LC_icon' />\n");
972: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
973:
974: $r->print (" <a href=\"javascript:openWindow('".$quotable_filelink.
975: "?inhibitmenu=yes','previewfile','450','500','no','yes','yes');\"".
976: " target=\"_self\">$listname</a> ");
977: $quotable_filelink = &Apache::loncommon::escape_single($filelink.'.meta');
978: &Apache::loncommon::inhibit_menu_check(\$quotable_filelink);
979: $r->print (" (<a href=\"javascript:openWindow('".$quotable_filelink.
980: "?inhibitmenu=yes','metadatafile','500','550','no','yes','no');\" ".
981: " target=\"_self\">metadata</a>) ");
982: # Close form to open/close sequence
983: if ($filelink=~/\.(page|sequence)$/) {
984: $r->print('</form>');
985: }
986: $r->print("</td>\n");
987: if ($hash{'display_attrs_0'} == 1) {
988: $r->print('<td> '.($title eq '' ? ' ' : $title).
989: ' </td>'."\n");
990: }
991: $r->print('<td align=right> ',
992: $filecom[8]," </td>\n")
993: if $hash{'display_attrs_1'} == 1;
994: $r->print('<td> '.
995: (localtime($filecom[9]))." </td>\n")
996: if $hash{'display_attrs_2'} == 1;
997: $r->print('<td> '.
998: (localtime($filecom[10]))." </td>\n")
999: if $hash{'display_attrs_3'} == 1;
1000:
1001: if ($hash{'display_attrs_4'} == 1) {
1002: my $author = &Apache::lonnet::metadata($filelink,'author');
1003: $r->print('<td> '.($author eq '' ? ' ' : $author).
1004: " </td>\n");
1005: }
1006: if ($hash{'display_attrs_5'} == 1) {
1007: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1008: # $keywords = ' ' if (!$keywords);
1009: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1010: " </td>\n");
1011: }
1012: #'
1013:
1014: if ($hash{'display_attrs_6'} == 1) {
1015: my $lang = &Apache::lonnet::metadata($filelink,'language');
1016: $lang = &Apache::loncommon::languagedescription($lang);
1017: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1018: " </td>\n");
1019: }
1020: if ($hash{'display_attrs_8'} == 1) {
1021: # statistics
1022: &dynmetaread($filelink);
1023: $r->print("<td>");
1024: &dynmetaprint($r,$filelink,'count');
1025: &dynmetaprint($r,$filelink,'course');
1026: &dynmetaprint($r,$filelink,'stdno');
1027: &dynmetaprint($r,$filelink,'avetries');
1028: &dynmetaprint($r,$filelink,'difficulty');
1029: &dynmetaprint($r,$filelink,'disc');
1030: &dynmetaprint($r,$filelink,'clear');
1031: &dynmetaprint($r,$filelink,'technical');
1032: &dynmetaprint($r,$filelink,'correct');
1033: &dynmetaprint($r,$filelink,'helpful');
1034: &dynmetaprint($r,$filelink,'depth');
1035: $r->print(" </td>\n");
1036:
1037: }
1038: if ($hash{'display_attrs_10'} == 1) {
1039: my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
1040: if($source eq 'open') {
1041: my $sourcelink = &Apache::lonsource::make_link($filelink,$listname);
1042: my $quotable_sourcelink = &Apache::loncommon::escape_single($sourcelink);
1043: &Apache::loncommon::inhibit_menu_check(\$quotable_sourcelink);
1044: $r->print('<td>'."<a href=\"javascript:openWindow('"
1045: .$quotable_sourcelink.
1046: "', 'previewsource', '700', '700', 'no', 'yes','yes');\"".
1047: " target=\"_self\">Yes</a> "."</td>\n");
1048: } else { #A cuddled else. :P
1049: $r->print("<td> </td>\n");
1050: }
1051: }
1052: if ($hash{'display_attrs_11'} == 1) {
1053: # links
1054: &dynmetaread($filelink);
1055: $r->print('<td>');
1056: &coursecontext($r,$filelink);
1057: &dynmetaprint($r,$filelink,'goto_list');
1058: &dynmetaprint($r,$filelink,'comefrom_list');
1059: &dynmetaprint($r,$filelink,'sequsage_list');
1060: &dynmetaprint($r,$filelink,'dependencies');
1061: &dynmetaprint($r,$filelink,'course_list');
1062: $r->print('</td>');
1063: }
1064: if ($hash{'display_attrs_7'} == 1) {
1065: # Show resource
1066: my $output=&showpreview($filelink);
1067: $r->print('<td> '.($output eq '' ? ' ':$output).
1068: " </td>\n");
1069: }
1070: $r->print("</tr>\n");
1071: }
1072:
1073: # -- display directory
1074: if ($fnptr == $dirptr) {
1075: my $curdir = $startdir.$filecom[0].'/';
1076: my $anchor = $curdir;
1077: $anchor =~ s/\W//g;
1078: $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
1079: &begin_form ($r,$curdir);
1080: my $indentm1 = $indent-1;
1081: if ($indentm1 < 11 and $indentm1 > 0) {
1082: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$indentm1,
1083: ".gif class='LC_icon' />\n");
1084: } else {
1085: my $ten = int($indentm1/10.);
1086: my $rem = $indentm1%10.0;
1087: my $count = 0;
1088: while ($count < $ten) {
1089: $r->print ("<img alt=\"\" src=",$iconpath
1090: ,"whitespace10.gif class='LC_icon' />\n");
1091: $count++;
1092: }
1093: $r->print ("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
1094: ".gif class='LC_icon' />\n") if $rem > 0;
1095: }
1096: $r->print ('<input type="hidden" name="acts" value="" />');
1097: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
1098: 'folder_pointer_'.$diropen.'.gif"');
1099: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
1100: "\n");
1101: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
1102: $r->print ('<a href="javascript:gothere(\''
1103: .$quotable_curdir.'\')">'
1104: .'<img alt="'.&mt('Open Folder').'"src="'.
1105: $iconpath.'folder_'.$diropen.'.gif" class="LC_icon" /></a>'.
1106: "\n");
1107: $r->print ("$listname</form></td>\n");
1108: # Attributes
1109: my $filelink = $startdir.$filecom[0].'/default';
1110:
1111: if ($hash{'display_attrs_0'} == 1) {
1112: my $title = &Apache::lonnet::gettitle($filelink);
1113: $r->print('<td> '.($title eq '' ? ' ' : $title).
1114: ' </td>'."\n");
1115: }
1116: $r->print('<td align=right> ',
1117: $filecom[8]," </td>\n")
1118: if $hash{'display_attrs_1'} == 1;
1119: $r->print('<td> '.
1120: (localtime($filecom[9]))." </td>\n")
1121: if $hash{'display_attrs_2'} == 1;
1122: $r->print('<td> '.
1123: (localtime($filecom[10]))." </td>\n")
1124: if $hash{'display_attrs_3'} == 1;
1125:
1126: if ($hash{'display_attrs_4'} == 1) {
1127: my $author = &Apache::lonnet::metadata($filelink,'author');
1128: $r->print('<td> '.($author eq '' ? ' ' : $author).
1129: " </td>\n");
1130: }
1131: if ($hash{'display_attrs_5'} == 1) {
1132: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1133: # $keywords = ' ' if (!$keywords);
1134: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1135: " </td>\n");
1136: }
1137: if ($hash{'display_attrs_6'} == 1) {
1138: my $lang = &Apache::lonnet::metadata($filelink,'language');
1139: $lang = &Apache::loncommon::languagedescription($lang);
1140: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1141: " </td>\n");
1142: }
1143: if ($hash{'display_attrs_8'} == 1) {
1144: $r->print('<td> </td>');
1145: }
1146: if ($hash{'display_attrs_10'} == 1) {
1147: $r->print('<td> </td>');
1148: }
1149: if ($hash{'display_attrs_11'} == 1) {
1150: $r->print('<td> </td>');
1151: }
1152: if ($hash{'display_attrs_7'} == 1) {
1153: $r->print('<td> </td>');
1154: }
1155: $r->print('</tr>');
1156: }
1157:
1158: }
1159:
1160: sub coursecontext {
1161: my ($r,$filelink)=@_;
1162: my $filesymb=&Apache::lonnet::symbread($filelink);
1163: if ($filesymb) {
1164: my ($map,$index,$resource)=&Apache::lonnet::decode_symb($filesymb);
1165: $r->print(&mt('Already in this course:<br />[_1] in folder/map [_2].<br />',
1166: &Apache::lonnet::gettitle($resource),
1167: &Apache::lonnet::gettitle($map)));
1168: }
1169: }
1170:
1171: sub showpreview {
1172: my ($filelink)=@_;
1173: if ($filelink=~m-^(/ext/|http://)-) {
1174: return &mt('External Resource, preview not enabled');
1175: }
1176: my ($curfext)=($filelink=~/\.(\w+)$/);
1177: my $output='';
1178: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
1179: if ($embstyle eq 'ssi') {
1180: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
1181: '.tmp';
1182: if ((!$env{'form.updatedisplay'}) &&
1183: (-e $cache)) {
1184: open(FH,$cache);
1185: $output=join("\n",<FH>);
1186: close(FH);
1187: } else {
1188: # In update display mode, remove old cache. This is done to retroactively
1189: # clean up course context renderings.
1190: if (-e $cache) {
1191: unlink($cache);
1192: }
1193: $output=&Apache::lonnet::ssi_body($filelink);
1194: # Is access denied? Don't render, don't store
1195: if ($output=~/LONCAPAACCESSCONTROLERRORSCREEN/s) {
1196: $output='';
1197: # Was this rendered in course content? Don't store
1198: } elsif (!&Apache::lonnet::symbread($filelink)) {
1199: open(FH,">$cache");
1200: print FH $output;
1201: close(FH);
1202: }
1203: }
1204: $output='<font size="-2">'.$output.'</font>';
1205: } elsif ($embstyle eq 'img') {
1206: $output='<img alt="'.&mt('Preview').'" src="'.$filelink.'" />';
1207: } elsif ($filelink=~m{^/res/($match_domain)/($match_username)/}) {
1208: $output='<img alt="'.&mt('Preview').'" src="http://'.
1209: &Apache::lonnet::hostname(&Apache::lonnet::homeserver($2,$1)).
1210: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1211: }
1212: return $output;
1213: }
1214:
1215: sub dynmetaprint {
1216: my ($r,$filelink,$item)=@_;
1217: if ($dynhash{$filelink}->{$item}) {
1218: $r->print("\n<br />".$fieldnames{$item}.': '.
1219: &Apache::lonmeta::prettyprint($item,
1220: $dynhash{$filelink}->{$item},
1221: (($env{'form.catalogmode'} ne 'import')?'preview':''),
1222: '',
1223: (($env{'form.catalogmode'} eq 'import')?'document.forms.fileattr':''),1));
1224: }
1225: }
1226:
1227: # ------------------- prints the beginning of a form for directory or file link
1228: sub begin_form {
1229: my ($r,$uri) = @_;
1230: my $anchor = $uri;
1231: $anchor =~ s/\W//g;
1232: $uri=&Apache::loncommon::escape_single($uri);
1233: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1234: '#'.$anchor.
1235: '" onSubmit="return rep_dirpath(\''.$dnum.'\''.
1236: ',document.forms.fileattr.acts.value)" '.
1237: 'enctype="application/x-www-form-urlencoded">'."\n");
1238: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'" />'.
1239: "\n");
1240: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n");
1241: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
1242: $dnum++;
1243: }
1244:
1245: # --------- settings whenever the user causes the indexer window to be launched
1246: sub start_fresh_session {
1247: my ($hash) = @_;
1248: delete $hash->{'form.catalogmode'};
1249: delete $hash->{'form.mode'};
1250: delete $hash->{'form.form'};
1251: delete $hash->{'form.element'};
1252: delete $hash->{'form.omit'};
1253: delete $hash->{'form.only'};
1254: foreach (keys %{$hash}) {
1255: delete $hash->{$_} if (/^(pre_|store)/);
1256: }
1257: }
1258:
1259: # ------------------------------------------------------------------- setvalues
1260: sub setvalues {
1261: # setvalues is used in registerurl to synchronize the database
1262: # hash and environment hashes
1263: my ($H1,$h1key,$H2,$h2key) =@_;
1264: #
1265: if (exists $H2->{$h2key}) {
1266: $H1->{$h1key} = $H2->{$h2key};
1267: } elsif (exists $H1->{$h1key}) {
1268: $H2->{$h2key} = $H1->{$h1key};
1269: }
1270: }
1271:
1272: 1;
1273:
1274: sub cleanup {
1275: if (tied(%hash)){
1276: &Apache::lonnet::logthis('Cleanup indexer: hash');
1277: }
1278: return OK;
1279: }
1280:
1281:
1282:
1283:
1284:
1285: =head1 NAME
1286:
1287: Apache::lonindexer - mod_perl module for cross server filesystem browsing
1288:
1289: =head1 SYNOPSIS
1290:
1291: Invoked by /etc/httpd/conf/srm.conf:
1292:
1293: <LocationMatch "^/res.*/$">
1294: SetHandler perl-script
1295: PerlHandler Apache::lonindexer
1296: </LocationMatch>
1297:
1298: =head1 INTRODUCTION
1299:
1300: This module enables a scheme of browsing across a cross server.
1301:
1302: This is part of the LearningOnline Network with CAPA project
1303: described at http://www.lon-capa.org.
1304:
1305: =head1 BEGIN SUBROUTINE
1306:
1307: This routine is only run once after compilation.
1308:
1309: =over 4
1310:
1311: =item *
1312:
1313: Initializes %language hash table.
1314:
1315: =back
1316:
1317: =head1 HANDLER SUBROUTINE
1318:
1319: This routine is called by Apache and mod_perl.
1320:
1321: =over 4
1322:
1323: =item *
1324:
1325: read in machine configuration variables
1326:
1327: =item *
1328:
1329: see if called from an interactive mode
1330:
1331: =item *
1332:
1333: refresh environment with user database values (in %hash)
1334:
1335: =item *
1336:
1337: define extra fields and buttons in case of special mode
1338:
1339: =item *
1340:
1341: set catalogmodefunctions to have extra needed javascript functionality
1342:
1343: =item *
1344:
1345: print header
1346:
1347: =item *
1348:
1349: evaluate actions from previous page (both cumulatively and chronologically)
1350:
1351: =item *
1352:
1353: output title
1354:
1355: =item *
1356:
1357: get state of file attributes to be showing
1358:
1359: =item *
1360:
1361: output state of file attributes to be showing
1362:
1363: =item *
1364:
1365: output starting row to the indexed file/directory hierarchy
1366:
1367: =item *
1368:
1369: read in what directories have previously been set to "open"
1370:
1371: =item *
1372:
1373: if not at top level, provide an uplink arrow
1374:
1375: =item *
1376:
1377: recursively go through all the directories and output as appropriate
1378:
1379: =item *
1380:
1381: information useful for group import
1382:
1383: =item *
1384:
1385: end the tables
1386:
1387: =item *
1388:
1389: end the output and return
1390:
1391: =back
1392:
1393: =head1 OTHER SUBROUTINES
1394:
1395: =over 4
1396:
1397: =item *
1398:
1399: scanDir - recursive scan of a directory
1400:
1401: =item *
1402:
1403: get_list - get complete matched list based on the uri (returns an array)
1404:
1405: =item *
1406:
1407: match_ext - filters out files based on extensions (returns an array)
1408:
1409: =item *
1410:
1411: display_line - displays one line in appropriate table format
1412:
1413: =item *
1414:
1415: begin_form - prints the beginning of a form for directory or file link
1416:
1417: =item *
1418:
1419: start_fresh_session - settings whenever the user causes the indexer window
1420: to be launched
1421:
1422: =back
1423:
1424: =cut
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