1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.176 2007/08/17 18:14:37 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 $line;
109: my (@attrchk,@openpath,$typeselect);
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}=$value;
134: }
135: untie(%dbfile);
136: }
137: }
138: # - Evaluate actions from previous page (both cumulatively and chronologically)
139: if ($env{'form.catalogmode'} eq 'import' || $hash{'form.catalogmode'} eq 'import') {
140: &Apache::groupsort::update_actions_hash(\%hash);
141: }
142:
143: {
144: #Hijack lonindexer to verify a title and be close down.
145: if ($env{'form.launch'} eq '2') {
146: &Apache::loncommon::content_type($r,'text/html');
147: my $extra='';
148: if (defined($env{'form.titleelement'}) &&
149: $env{'form.titleelement'} ne '') {
150: my $verify_title = &Apache::lonnet::gettitle($env{'form.acts'});
151: # &Apache::lonnet::logthis("Hrrm $env{'form.acts'} -- $verify_title");
152: $verify_title=~s/'/\\'/g;
153: $extra='window.opener.document.forms["'.$env{'form.form'}.'"].elements["'.$env{'form.titleelement'}.'"].value=\''.$verify_title.'\';';
154: }
155: my $js = <<ENDSUBM;
156: <script type="text/javascript">
157: function load() {
158: window.opener.document.forms["$env{'form.form'}"]
159: .elements["$env{'form.element'}"]
160: .value='$env{'form.acts'}';
161: $extra
162: window.close();
163: }
164: </script>
165: ENDSUBM
166: $r->print(&Apache::loncommon::start_page(undef,$js,
167: {'only_body' =>1,
168: 'add_entries' =>
169: {'onload' => "load();"},}
170: ).
171: &Apache::loncommon::end_page());
172: return OK;
173: }
174:
175: # -------------------- refresh environment with user database values (in %hash)
176: &setvalues(\%hash,'form.catalogmode',\%env,'form.catalogmode' );
177:
178: # --------------------- define extra fields and buttons in case of special mode
179: if ($env{'form.catalogmode'} eq 'interactive') {
180: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
181: '<img alt="" src="'.$iconpath.'whitespace1.gif"'.
182: ' class="LC_icon" /></td>';
183: $colspan=" colspan='2' ";
184: my $cl=&mt('Close');
185: $closebutton=<<END;
186: <input type="button" name="close" value='$cl' onClick="self.close()" />
187: END
188: }
189: elsif ($env{'form.catalogmode'} eq 'import') {
190: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
191: '<img alt="" src="'.$iconpath.'whitespace1.gif"'.
192: ' class="LC_icon" /></td>';
193: $colspan=" colspan='2' ";
194: my $cl=&mt('Close');
195: my $gi=&mt('Import');
196: $closebutton=<<END;
197: <input type="button" name="close" value='$cl' onClick="self.close()" />
198: END
199: $groupimportbutton=<<END;
200: <input type="button" name="groupimport" value='$gi'
201: onClick="javascript:select_group()" />
202: END
203: }
204: # Additions made by Matthew to make the browser a little easier to deal
205: # with in the future.
206: #
207: # $mode (at this time) indicates if we are in edit mode.
208: # $form is the name of the form that the URL is placed when the
209: # selection is made.
210: # $element is the name of the element in $formname which receives
211: # the URL.
212: #&Apache::lonxml::debug('Checking mode, form, element');
213: &setvalues(\%hash,'form.mode' ,\%env,'form.mode' );
214: &setvalues(\%hash,'form.form' ,\%env,'form.form' );
215: &setvalues(\%hash,'form.element' ,\%env,'form.element');
216: &setvalues(\%hash,'form.titleelement',\%env,'form.titleelement');
217: &setvalues(\%hash,'form.only' ,\%env,'form.only' );
218: &setvalues(\%hash,'form.omit' ,\%env,'form.omit' );
219:
220: # Deal with 'omit' and 'only'
221: if (exists $env{'form.omit'}) {
222: @Omit = split(',',$env{'form.omit'});
223: }
224: if (exists $env{'form.only'}) {
225: @Only = split(',',$env{'form.only'});
226: }
227:
228: my $mode = $env{'form.mode'};
229: my ($form,$element,$titleelement);
230: if ($mode eq 'edit' || $mode eq 'parmset') {
231: $form = $env{'form.form'};
232: $element = $env{'form.element'};
233: $titleelement = $env{'form.titleelement'};
234: }
235: #&Apache::lonxml::debug("mode=$mode form=$form element=$element titleelement=$titleelement");
236: # ------ set catalogmodefunctions to have extra needed javascript functionality
237: my $catalogmodefunctions='';
238: if ($env{'form.catalogmode'} eq 'interactive' or
239: $env{'form.catalogmode'} eq 'import') {
240: # The if statement below sets us up to use the old version
241: # by default (ie. if $mode is undefined). This is the easy
242: # way out. Hopefully in the future I'll find a way to get
243: # the calls dealt with in a more comprehensive manner.
244:
245: #
246: # There is now also mode "simple", which is for the simple version of the rat
247: #
248: #
249: if (!defined($mode) || ($mode ne 'edit' && $mode ne 'parmset')) {
250: my $location = "/adm/groupsort?&inhibitmenu=yes&catalogmode=import&";
251: $location .= "mode=".$mode."&";
252: $location .= "acts=";
253: $catalogmodefunctions=<<"END";
254: function select_data(url) {
255: changeURL(url);
256: self.close();
257: }
258: function select_group() {
259: window.location="$location"+document.forms.fileattr.acts.value;
260: }
261: function changeURL(val) {
262: if (opener.inf) {
263: if (opener.inf.document.forms.resinfo.elements.u) {
264: opener.inf.document.forms.resinfo.elements.u.value=val;
265: }
266: }
267: }
268: END
269: } elsif ($mode eq 'edit') { # we are in 'edit' mode
270: my $location = "/adm/groupsort?catalogmode=interactive&";
271: $location .= "form=$form&element=$element&mode=edit&acts=";
272: $catalogmodefunctions=<<END;
273: // mode = $mode
274: function select_data(url) {
275: var location = "/res/?launch=2&form=$form&element=$element&titleelement=$titleelement&acts=" + url;
276: window.location=location;
277: if (window.opener.document.forms["$form"].elements["$element"].value != url) {
278: window.opener.unClean();
279: }
280: }
281: function select_group() {
282: window.location="$location"+document.forms.fileattr.acts.value;
283: }
284:
285: function changeURL(val) {
286: if (window.opener.document) {
287: window.opener.document.forms["$form"].elements["$element"].value=val;
288: } else {
289: alert("The file you selected is: "+val);
290: }
291: }
292: END
293: if (!$titleelement) {
294: $catalogmodefunctions.='function changeTitle(val) {}';
295: } else {
296: $catalogmodefunctions.=<<END;
297: function changeTitle(val) {
298: if (window.opener.document) {
299: window.opener.document.forms["$form"].elements["$titleelement"].value=val;
300: } else {
301: alert("The title of the file you selected is: "+val);
302: }
303: }
304: END
305: }
306: } elsif ($mode eq 'parmset') {
307: my $location = "/adm/groupsort?catalogmode=interactive&";
308: $location .= "form=$form&element=$element&mode=parmset&acts=";
309: $catalogmodefunctions=<<END;
310: // mode = $mode
311: function select_data(url) {
312: changeURL(url);
313: self.close();
314: }
315:
316: function select_group() {
317: window.location="$location"+document.forms.fileattr.acts.value;
318: }
319:
320: function changeURL(val) {
321: if (window.opener.document) {
322: var elementname = "$element"+"_value";
323: var checkboxname = "$element"+"_setparmval";
324: window.opener.document.forms["$form"].elements[elementname].value=val;
325: window.opener.document.forms["$form"].elements[checkboxname].checked=true;
326: } else {
327: alert("The file you selected is: "+val);
328: }
329: }
330:
331: END
332: }
333: }
334: $catalogmodefunctions.=<<END;
335: var acts='';
336: function rep_dirpath(suffix,val) {
337: eval("document.forms.dirpath"+suffix+".acts.value=val");
338: }
339: END
340: if ($env{'form.catalogmode'} eq 'import') {
341: $catalogmodefunctions.=<<END;
342: function queue(val) {
343: if (eval("document.forms."+val+".filelink.checked")) {
344: var l=val.length;
345: var v=val.substring(4,l);
346: document.forms.fileattr.acts.value+='1a'+v+'b';
347: }
348: else {
349: var l=val.length;
350: var v=val.substring(4,l);
351: document.forms.fileattr.acts.value+='0a'+v+'b';
352: }
353: }
354: END
355: }
356:
357: my $inhibit_menu = "+'&".&Apache::loncommon::inhibit_menu_check()."'";
358: # ---------------------------------------------------------------- Print Header
359:
360: my $js = <<"ENDHEADER";
361: <script type="text/javascript">
362: $catalogmodefunctions;
363: function update_only(field) {
364: alert(field.name);
365: }
366: function checkAll() {
367: var numForms = document.forms.length;
368: for (i=0;i<numForms;i++) {
369: var numElements = document.forms[i].elements.length;
370: for (j=0;j<numElements;j++){
371: var fieldName = document.forms[i].elements[j].name;
372: if (fieldName == 'filelink') {
373: document.forms[i].elements[j].checked = true;
374: queue(document.forms[i].name);
375: }
376: }
377: }
378: }
379: function uncheckAll() {
380: var numForms = document.forms.length;
381: for (i=0;i<numForms;i++) {
382: var numElements = document.forms[i].elements.length;
383: for (j=0;j<numElements;j++){
384: var fieldName = document.forms[i].elements[j].name;
385: if (fieldName == 'filelink') {
386: document.forms[i].elements[j].checked = false;
387: queue(document.forms[i].name);
388: }
389: }
390: }
391: }
392: function openWindow(url, wdwName, w, h, toolbar,scrollbar,locationbar) {
393: var xpos = (screen.width-w)/2;
394: xpos = (xpos < 0) ? '0' : xpos;
395: var ypos = (screen.height-h)/2-30;
396: ypos = (ypos < 0) ? '0' : ypos;
397: var options = "width=" + w + ",height=" + h + ",screenx="+xpos+",screeny="+ypos+",";
398: options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
399: options += "menubar=no,toolbar="+toolbar+",location="+locationbar+",directories=no";
400: var newWin = window.open(url, wdwName, options);
401: newWin.focus();
402: }
403: function gothere(val) {
404: window.location=val+'?acts='+document.forms.fileattr.acts.value$inhibit_menu;
405: }
406: </script>
407: ENDHEADER
408:
409: my ($headerdom)=($uri=~m{^/res/($match_domain)/});
410: $r->print(&Apache::loncommon::start_page('Browse Resources',$js,
411: {'domain' => $headerdom,}));
412: # ---------------------------------- get state of file types to be showing
413: if ($env{'form.only'}) {
414: $typeselect = $env{'form.only'};
415: } else {
416: $typeselect = '';
417: }
418:
419: # ---------------------------------- get state of file attributes to be showing
420: if ($env{'form.attrs'}) {
421: for (my $i=0; $i<=11; $i++) {
422: delete $hash{'display_attrs_'.$i};
423: if ($env{'form.attr'.$i} == 1) {
424: $attrchk[$i] = 'checked';
425: $hash{'display_attrs_'.$i} = 1;
426: }
427: }
428: } else {
429: for (my $i=0; $i<=11; $i++) {
430: $attrchk[$i] = 'checked' if $hash{'display_attrs_'.$i} == 1;
431: }
432: }
433:
434: # ------------------------------- output state of file attributes to be showing
435: # All versions has to the last item
436: # since it does not take an extra col
437: my %lt=&Apache::lonlocal::texthash(
438: 'ti' => 'Title',
439: 'si' => 'Size',
440: 'la' => 'Last access',
441: 'lm' => 'Last modified',
442: 'st' => 'Statistics',
443: 'au' => 'Author',
444: 'kw' => 'Keywords',
445: 'ln' => 'Language',
446: 'sa' => 'Source Available',
447: 'sr' => 'Show resource',
448: 'li' => 'Linked/Related Resources',
449: 'av' => 'All versions',
450: 'ud' => 'Update Display',
451: 'pr' => 'Problems',
452: 'gr' => 'Graphics',
453: 'at' => 'All types'
454: );
455: $r->print(<<END);
456: <form method="post" name="fileattr" action="$uri"
457: enctype="application/x-www-form-urlencoded">
458: <label><input type="checkbox" name="attr9" value="1" $attrchk[9] onClick="this.form.submit();" /> $lt{'av'}</label>
459: <table border="0">
460: <tr>
461: <td><label><input type="checkbox" name="attr0" value="1" $attrchk[0] onClick="this.form.submit();" /> $lt{'ti'}</label></td>
462: <td><label><input type="checkbox" name="attr4" value="1" $attrchk[4] onClick="this.form.submit();" /> $lt{'au'}</label></td>
463: <td><label><input type="checkbox" name="attr5" value="1" $attrchk[5] onClick="this.form.submit();" /> $lt{'kw'}</label></td>
464: <td><label><input type="checkbox" name="attr6" value="1" $attrchk[6] onClick="this.form.submit();" /> $lt{'ln'}</label></td>
465: </tr>
466: <tr>
467: <td><label><input type="checkbox" name="attr1" value="1" $attrchk[1] onClick="this.form.submit();" /> $lt{'si'}</label></td>
468: <td><label><input type="checkbox" name="attr2" value="1" $attrchk[2] onClick="this.form.submit();" /> $lt{'la'}</label></td>
469: <td><label><input type="checkbox" name="attr3" value="1" $attrchk[3] onClick="this.form.submit();" /> $lt{'lm'}</label></td>
470: <td><label><input type="checkbox" name="attr10" value="1" $attrchk[10] onClick="this.form.submit();" /> $lt{'sa'}</label></td>
471: </tr>
472: <tr>
473: <td><label><input type="checkbox" name="attr8" value="1" $attrchk[8] onClick="this.form.submit();" /> $lt{'st'}</label></td>
474: <td><label><input type="checkbox" name="attr11" value="1" $attrchk[11] onClick="this.form.submit();" /> $lt{'li'}</label></td>
475: <td><label><input type="checkbox" name="attr7" value="1" $attrchk[7] onClick="this.form.submit();" /> $lt{'sr'}</label></td>
476: <td> </td>
477: </tr>
478: </table>
479: <input type="hidden" name="attrs" value="1" />
480: <label>
481: END
482: $r->print(&Apache::loncommon::filecategoryselect('only',$typeselect));
483: $r->print(<<END);
484: File Type Displayed</label>
485: <br />
486: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
487: <input type="hidden" name="acts" value="" />
488: $closebutton $groupimportbutton
489: END
490: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
491: # -------------- Filter out sequence containment in crumbs and "recent folders"
492: my $storeuri=$uri;
493: $storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
494: $storeuri=~s/\/+/\//g;
495: # ---------------------------------------------------------------- Bread crumbs
496: $r->print(&Apache::lonhtmlcommon::crumbs($storeuri,'','',
497: (($env{'form.catalogmode'} eq 'import')?
498: 'document.forms.fileattr':'')).
499: &Apache::lonhtmlcommon::select_recent('residx','resrecent',
500: '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();'));
501: # -------------------------------------------------------- Resource Home Button
502: my $reshome=$env{'course.'.$env{'request.course.id'}.'.reshome'};
503: if ($reshome) {
504: $r->print("<font size='+2'><a href='");
505: if ($env{'form.catalogmode'} eq 'import') {
506: $r->print('javascript:document.forms.fileattr.action="'.&Apache::loncommon::inhibit_menu_check($reshome).'";document.forms.fileattr.submit();');
507: } else {
508: $r->print($reshome);
509: }
510: $r->print("'>".&mt('Home').'</a></font>');
511: }
512: $r->print('</form>');
513: # ------------------------------------------------------ Remember where we were
514: &Apache::loncommon::storeresurl($storeuri);
515: &Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
516: # -------------------------------------------------- Check All and Uncheck all
517: if ($env{'form.catalogmode'} eq 'import') {
518: $r->print('<br /><input type="button" value="'.&mt("Check All").'" id="checkallbutton" onClick="javascript:checkAll()" />');
519: $r->print('<input type="button" value="'.&mt("Uncheck All").'" id="uncheckallbutton" onClick="javascript:uncheckAll()" />');
520: }
521: # ----------------- output starting row to the indexed file/directory hierarchy
522: my $titleclr="#ddffff";
523: #$r->print(&initdebug());
524: #$r->print(&writedebug("Omit:@Omit")) if (@Omit);
525: #$r->print(&writedebug("Only:@Only")) if (@Only);
526: $r->print('<table width="100%" border="0"><tr><td bgcolor="#777777">'."\n");
527: $r->print('<table width="100%" border="0"><tr bgcolor="'.$titleclr.'">'."\n");
528: $r->print("<td $colspan><b>".&mt('Name')."</b></td>\n");
529: $r->print("<td><b>".&mt('Title')."</b></td>\n")
530: if ($hash{'display_attrs_0'} == 1);
531: $r->print("<td align=right><b>".&mt("Size")." (".&mt("bytes").") ".
532: "</b></td>\n") if ($hash{'display_attrs_1'} == 1);
533: $r->print("<td><b>".&mt("Last accessed")."</b></td>\n")
534: if ($hash{'display_attrs_2'} == 1);
535: $r->print("<td><b>".&mt("Last modified")."</b></td>\n")
536: if ($hash{'display_attrs_3'} == 1);
537: $r->print("<td><b>".&mt("Author(s)")."</b></td>\n")
538: if ($hash{'display_attrs_4'} == 1);
539: $r->print("<td><b>".&mt("Keywords")."</b></td>\n")
540: if ($hash{'display_attrs_5'} == 1);
541: $r->print("<td><b>".&mt("Language")."</b></td>\n")
542: if ($hash{'display_attrs_6'} == 1);
543: $r->print("<td><b>".&mt("Usage Statistics")." <br />(".
544: &mt("Courses/Network Hits").")</b> ".&mt('updated periodically')."</td>\n")
545: if ($hash{'display_attrs_8'} == 1);
546: $r->print("<td><b>".&mt("Source Available")."</b></td>\n")
547: if ($hash{'display_attrs_10'} == 1);
548: $r->print("<td><b>".&mt("Linked/Related Resources")."</b></td>\n")
549: if ($hash{'display_attrs_11'} == 1);
550: $r->print("<td><b>".&mt("Resource")."</b></td>\n")
551: if ($hash{'display_attrs_7'} == 1);
552: $r->print('</tr>');
553:
554: # ----------------- read in what directories have previously been set to "open"
555: foreach (keys %hash) {
556: if ($_ =~ /^diropen_status_/) {
557: my $key = $_;
558: $key =~ s/^diropen_status_//;
559: $dirs{$key} = $hash{$_};
560: }
561: }
562:
563: if ($env{'form.openuri'}) { # take care of review and refresh options
564: my $uri=$env{'form.openuri'};
565: if (exists($hash{'diropen_status_'.$uri})) {
566: my $cursta = $hash{'diropen_status_'.$uri};
567: $dirs{$uri} = 'open';
568: $hash{'diropen_status_'.$uri} = 'open';
569: if ($cursta eq 'open') {
570: $dirs{$uri} = 'closed';
571: $hash{'diropen_status_'.$uri} = 'closed';
572: }
573: } else {
574: $hash{'diropen_status_'.$uri} = 'open';
575: $dirs{$uri} = 'open';
576: }
577: }
578:
579: my $toplevel;
580: my $indent = 0;
581: $uri = $uri.'/' if $uri !~ /.*\/$/;
582:
583: if ($env{'form.dirPointer'} ne 'on') {
584: $hash{'top.level'} = $uri;
585: $toplevel = $uri;
586: } else {
587: $toplevel = $hash{'top.level'};
588: }
589:
590: # -------------------------------- if not at top level, provide an uplink arrow
591: if ($toplevel ne '/res/'){
592: my (@uri_com) = split(/\//,$uri);
593: pop @uri_com;
594: my $upone = join('/',@uri_com);
595: my @list = qw (0);
596: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
597: $indent = 1;
598: }
599:
600: # -------- recursively go through all the directories and output as appropriate
601: &scanDir ($r,$toplevel,$indent,\%hash);
602:
603:
604: # -------------------------------------------------------------- end the tables
605: $r->print('</table>');
606: # ---------------------------- embed hidden information useful for group import
607: $r->print("<form name='fnum' action=''>");
608: $r->print("<input type='hidden' name='fnum' value='$fnum' /></form>");
609: # -------------------------------------------------------------- end the tables
610: $r->print('</td></tr></table>');
611:
612: # --------------------------------------------------- end the output and return
613: $r->print(&Apache::loncommon::end_page()."\n");
614: }
615: if(! $c->aborted()) {
616: # write back into the temporary file
617: my %dbfile;
618: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
619: while (my($key,$value) = each(%hash)) {
620: $dbfile{$key}=$value;
621: }
622: untie(%dbfile);
623: }
624: }
625:
626: return OK;
627: }
628:
629: # ----------------------------------------------- recursive scan of a directory
630: sub scanDir {
631: my ($r,$startdir,$indent,$hashref)=@_;
632: my $c = $r->connection();
633: my ($compuri,$curdir);
634: my $dirptr=16384;
635: my $obs;
636: $indent++;
637: my %dupdirs = %dirs;
638: my @list=&get_list($r,$startdir);
639: foreach my $line (@list) {
640: return if ($c->aborted());
641: #This is a kludge, sorry aboot this
642: my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
643: next if($strip =~ /.*\.meta$/ | $obs eq '1');
644: my (@fileparts) = split(/\./,$strip);
645: if ($hash{'display_attrs_9'} != 1) {
646: # if not all versions to be shown
647: if (scalar(@fileparts) >= 3) {
648: my $fext = pop @fileparts;
649: my $ov = pop @fileparts;
650: my $fname = join ('.',@fileparts,$fext);
651: next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
652: }
653: }
654:
655: if ($dom eq 'domain') {
656: # dom list has full path /res/<domain name>/ already
657: $curdir='';
658: $compuri = (split(/\&/,$line))[0];
659: } else {
660: # user, dir & file have name only, i.e., w/o path
661: $compuri = join('',$startdir,$strip,'/');
662: $curdir = $startdir;
663: }
664: my $diropen = 'closed';
665: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
666: while (my ($key,$val)= each %dupdirs) {
667: if ($key eq $compuri and $val eq "open") {
668: $diropen = "opened";
669: delete($dupdirs{$key});
670: delete($dirs{$key});
671: }
672: }
673: }
674: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
675: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
676: }
677: $indent--;
678: }
679:
680: # --------------- get complete matched list based on the uri (returns an array)
681: sub get_list {
682: my ($r,$uri)=@_;
683: my @list=();
684: (my $luri = $uri) =~ s/\//_/g;
685: if ($env{'form.updatedisplay'}) {
686: foreach (keys %hash) {
687: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
688: delete $hash{$_} if ($_ =~ /^dirlist_timestamp_files_/);
689: }
690: }
691:
692: if (defined($hash{'dirlist_files_'.$luri}) &&
693: $hash{'dirlist_timestamp_files_'.$luri}+600 > (time)) {
694: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
695: } elsif ($uri=~/\.(page|sequence)\/$/) {
696: # is a page or a sequence
697: $uri=~s/\/$//;
698: $uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
699: $uri=~s/\/+/\//g;
700: foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
701: my @ratpart=split(/\:/,$_);
702: push(@list,&LONCAPA::map::qtescape($ratpart[1]));
703: }
704: $hash{'dirlist_files_'.$luri} = join("\n",@list);
705: } else {
706: # is really a directory
707: @list = &Apache::lonnet::dirlist($uri);
708: $hash{'dirlist_files_'.$luri} = join("\n",@list);
709: $hash{'dirlist_timestamp_files_'.$luri} = time;
710: }
711: return @list=&match_ext($r,@list);
712: }
713:
714: sub dynmetaread {
715: my $uri=shift;
716: if (($hash{'display_attrs_8'}==1) || ($hash{'display_attrs_11'}==1)) {
717: # We don't want the filename
718: $uri=~s/\/[^\/]+$//;
719: # Did we already see this?
720: my $builddir=$uri;
721: while ($builddir) {
722: if ($dynread{$builddir}) {
723: return 0;
724: }
725: $builddir=~s/\/[^\/]+$//;
726: }
727: # Actually get the data
728: %dynhash=
729: (%dynhash,&Apache::lonmeta::get_dynamic_metadata_from_sql($uri.'/'));
730: # Remember that we got it
731: $dynread{$uri}=1;
732: }
733: }
734:
735: sub initdebug {
736: my $start_page=
737: &Apache::loncommon::start_page('Debug',undef,
738: {'only_body' => 1,});
739: $start_page =~ s/\n/ /g;
740: return <<ENDJS;
741: <script type="text/javascript">
742: var debugging = true;
743: if (debugging) {
744: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
745: }
746:
747: function output(text) {
748: if (debugging) {
749: debuggingWindow.document.writeln(text);
750: }
751: }
752: output('$start_page<pre>');
753: </script>
754: ENDJS
755: }
756:
757: sub writedebug {
758: my ($text) = @_;
759: return "<script type=\"text/javascript\">output('$text');</script>";
760: }
761:
762: # -------------------- filters out files based on extensions (returns an array)
763: sub match_ext {
764: my ($r,@packlist)=@_;
765: my @trimlist;
766: my $nextline;
767: my @fileext;
768: my $dirptr=16384;
769:
770: foreach my $line (@packlist) {
771: chomp $line;
772: $line =~ s/^\/home\/httpd\/html//;
773: my @unpackline = split (/\&/,$line);
774: next if ($unpackline[0] eq '.');
775: next if ($unpackline[0] eq '..');
776: my @filecom = split (/\./,$unpackline[0]);
777: my $fext = pop(@filecom);
778: my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
779: if ($fnptr == 0 and $unpackline[3] ne "") {
780: my $embstyle = &Apache::loncommon::fileembstyle($fext);
781: push @trimlist,$line if (defined($embstyle) &&
782: ($embstyle ne 'hdn' or $fext eq 'meta'));
783: } else {
784: push @trimlist,$line;
785: }
786: }
787: @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
788: return @trimlist;
789: }
790:
791: # ------------------------------- displays one line in appropriate table format
792: sub display_line {
793: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
794: my (@pathfn, $fndir);
795: # there could be relative paths (files actually belonging into this directory)
796: # or absolute paths (for example, from sequences)
797: my $absolute;
798: my $pathprefix;
799: if ($line=~m|^/res/| && $startdir ne '') {
800: $absolute=1;
801: $pathprefix='';
802: } else {
803: $absolute=0;
804: $pathprefix=$startdir;
805: }
806: my $dirptr=16384;
807: my $fileclr="#ffffe6";
808: my $iconpath= $r->dir_config('lonIconsURL') . '/';
809:
810: my @filecom = split (/\&/,$line);
811: my @pathcom = split (/\//,$filecom[0]);
812: my $listname = $pathcom[scalar(@pathcom)-1];
813: my $fnptr = $filecom[3]&$dirptr;
814: my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
815: $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
816:
817: my $tabtag='</td>';
818: my $i=0;
819: while ($i<=11) {
820: $tabtag=join('',$tabtag,"<td> </td>")
821: if ($i != 9 &&
822: $hash{'display_attrs_'.$i} == 1);
823: $i++;
824: }
825: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
826:
827: # display uplink arrow
828: if ($filecom[1] eq 'viewOneUp') {
829: my $updir=$startdir;
830: # -------------- Filter out sequence containment in crumbs and "recent folders"
831: $updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
832: $updir=~s/\/+/\//g;
833:
834: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
835: $r->print("<td>\n");
836: $r->print ('<form method="post" name="dirpathUP" action="'.$updir.
837: '/" '.
838: 'onSubmit="return rep_dirpath(\'UP\','.
839: 'document.forms.fileattr.acts.value)" '.
840: 'enctype="application/x-www-form-urlencoded"'.
841: '>'."\n");
842: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
843: $r->print ('<input type=hidden name=openuri value="'.
844: $startdir.'" />'."\n");
845: $r->print ('<input type="hidden" name="acts" value="" />'."\n");
846: $r->print ('<input src="'.$iconpath.'arrow_up.gif"');
847: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
848: "\n");
849: $r->print(&mt("Up")."</form>$tabtag</tr>\n");
850: return OK;
851: }
852: # Do we have permission to look at this?
853:
854: if($filecom[15] ne '1') { return OK if (!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])); }
855:
856: # make absolute links appear on different background
857: if ($absolute) { $fileclr='#ccdd99'; }
858:
859: # display domain
860: if ($filecom[1] eq 'domain') {
861: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n")
862: if ($env{'form.dirPointer'} eq "on");
863: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
864: $r->print("<td>");
865: &begin_form ($r,$filecom[0]);
866: my $anchor = $filecom[0];
867: $anchor =~ s/\W//g;
868: $r->print ('<a name="'.$anchor.'"></a>');
869: $r->print ('<input type="hidden" name="acts" value="" />');
870: $r->print ('<input src="'.$iconpath.'folder_pointer_'.
871: $diropen.'.gif"');
872: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
873: "\n");
874: my $quotable_filecom = &Apache::loncommon::escape_single($filecom[0]);
875: $r->print ('<a href="javascript:gothere(\''.$quotable_filecom.
876: '\')"><img alt="" src="'.$iconpath.'server.gif"');
877: $r->print (' class="LC_icon" /></a>'."\n");
878: $r->print (&mt("Domain")." - $listname ");
879: if (&Apache::lonnet::domain($listname,'description')) {
880: $r->print("(".&Apache::lonnet::domain($listname,'description').
881: ")");
882: }
883: $r->print ("</form>$tabtag</tr>\n");
884: return OK;
885:
886: # display user directory
887: }
888: if ($filecom[1] eq 'user') {
889: # $r->print("<tr valign=$valign bgcolor=\"$fileclr\">$extrafield");
890: my $curdir = $startdir.$filecom[0].'/';
891: my $anchor = $curdir;
892: $anchor =~ s/\W//g;
893: $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
894: &begin_form ($r,$curdir);
895: $r->print ('<a name="'.$anchor.'"></a><img alt="" src="'.$iconpath.
896: 'whitespace1.gif" class="LC_icon" />'."\n");
897: $r->print ('<input type="hidden" name="acts" value="" />');
898: $r->print ('<input src="'.$iconpath.'folder_pointer_'.$diropen.
899: '.gif"');
900: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
901: "\n");
902: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
903: $r->print ('<a href="javascript:gothere(\''.$quotable_curdir
904: .'\')"><img alt="'.$msg.'" src="'.
905: $iconpath.'quill.gif" class="LC_indexer_icon" /></a>');
906: my $domain=(split(m|/|,$startdir))[2];
907: my $plainname=&Apache::loncommon::plainname($listname,$domain);
908: $r->print ($listname);
909: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
910: $r->print ('</form>'.$tabtag.'</tr>'."\n");
911: return OK;
912: }
913:
914: # display file
915: if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
916: my $title;
917: my $filelink = $pathprefix.$filecom[0];
918: if ($hash{'display_attrs_0'} == 1) {
919: $title = &Apache::lonnet::gettitle($filelink);
920: }
921: my @file_ext = split (/\./,$listname);
922: my $curfext = $file_ext[-1];
923: if (@Omit) {
924: foreach (@Omit) { return OK if ($curfext eq $_); }
925: }
926: if (@Only) {
927: my $skip = 1;
928: foreach (@Only) { $skip = 0 if ($curfext eq $_); }
929: return OK if ($skip > 0);
930: }
931: # Set the icon for the file
932: my $iconname = &Apache::loncommon::icon($listname);
933: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\"><td nowrap='nowrap' valign='top'>");
934:
935: if ($env{'form.catalogmode'} eq 'interactive') {
936: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
937: $r->print("<a href=\"javascript:select_data(\'",
938: $quotable_filelink,"')\">");
939: $r->print("<img alt=\"\" src='",$iconpath,"select.gif' class='LC_icon' /></a>".
940: "\n");
941: $r->print("</td><td nowrap='nowrap' valign='top'>");
942: } elsif ($env{'form.catalogmode'} eq 'import') {
943: $r->print("<form name='form$fnum' action=''>\n");
944: $r->print("<input type='checkbox' name='filelink"."' ".
945: "value='$filelink' onClick='".
946: "javascript:queue(\"form$fnum\")' ");
947: if ($hash{'store_'.$filelink}) {
948: $r->print("checked");
949: }
950: $r->print(" />\n");
951: $r->print("</form></td><td nowrap='nowrap' valign='top'>");
952: $hash{"pre_${fnum}_link"}=$filelink;
953: $hash{"pre_${fnum}_title"}=$title;
954: if (!$hash{"pre_${fnum}_title"}) {
955: $hash{"pre_${fnum}_title"} = 'Not_retrieved';
956: }
957: $fnum++;
958: }
959: # Form to open or close sequences
960: if ($filelink=~/\.(page|sequence)$/) {
961: my $curdir = $startdir.$filecom[0].'/';
962: &begin_form($r,$curdir);
963: $indent--;
964: }
965: # General indentation
966: if ($indent > 0 and $indent < 11) {
967: $r->print("<img alt=\"\" src='",$iconpath,"whitespace",$indent,
968: ".gif' class='LC_icon' />\n");
969: } elsif ($indent >0) {
970: my $ten = int($indent/10.);
971: my $rem = $indent%10.0;
972: my $count = 0;
973: while ($count < $ten) {
974: $r->print("<img alt=\"\" src=".$iconpath.
975: "whitespace10.gif class='LC_icon' />\n");
976: $count++;
977: }
978: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
979: ".gif class='LC_icon' />\n") if $rem > 0;
980: }
981: # Sequence open/close icon
982: if ($filelink=~/\.(page|sequence)$/) {
983: my $curdir = $startdir.$filecom[0].'/';
984: my $anchor = $curdir;
985: $anchor =~ s/\W//g;
986: $r->print ('<input type="hidden" name="acts" value="" />');
987: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
988: 'folder_pointer_'.$diropen.'.gif"');
989: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
990: "\n");
991: }
992: # Filetype icons
993: $r->print("<img alt=\"\" src='$iconname' class='LC_icon' />\n");
994: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
995:
996: $r->print (" <a href=\"javascript:openWindow('".$quotable_filelink.
997: "?inhibitmenu=yes','previewfile','450','500','no','yes','yes');\"".
998: " target=\"_self\">$listname</a> ");
999: $quotable_filelink = &Apache::loncommon::escape_single($filelink.'.meta');
1000: &Apache::loncommon::inhibit_menu_check(\$quotable_filelink);
1001: $r->print (" (<a href=\"javascript:openWindow('".$quotable_filelink.
1002: "?inhibitmenu=yes','metadatafile','500','550','no','yes','no');\" ".
1003: " target=\"_self\">metadata</a>) ");
1004: # Close form to open/close sequence
1005: if ($filelink=~/\.(page|sequence)$/) {
1006: $r->print('</form>');
1007: }
1008: $r->print("</td>\n");
1009: if ($hash{'display_attrs_0'} == 1) {
1010: $r->print('<td> '.($title eq '' ? ' ' : $title).
1011: ' </td>'."\n");
1012: }
1013: $r->print('<td align=right> ',
1014: $filecom[8]," </td>\n")
1015: if $hash{'display_attrs_1'} == 1;
1016: $r->print('<td> '.
1017: (localtime($filecom[9]))." </td>\n")
1018: if $hash{'display_attrs_2'} == 1;
1019: $r->print('<td> '.
1020: (localtime($filecom[10]))." </td>\n")
1021: if $hash{'display_attrs_3'} == 1;
1022:
1023: if ($hash{'display_attrs_4'} == 1) {
1024: my $author = &Apache::lonnet::metadata($filelink,'author');
1025: $r->print('<td> '.($author eq '' ? ' ' : $author).
1026: " </td>\n");
1027: }
1028: if ($hash{'display_attrs_5'} == 1) {
1029: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1030: # $keywords = ' ' if (!$keywords);
1031: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1032: " </td>\n");
1033: }
1034: #'
1035:
1036: if ($hash{'display_attrs_6'} == 1) {
1037: my $lang = &Apache::lonnet::metadata($filelink,'language');
1038: $lang = &Apache::loncommon::languagedescription($lang);
1039: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1040: " </td>\n");
1041: }
1042: if ($hash{'display_attrs_8'} == 1) {
1043: # statistics
1044: &dynmetaread($filelink);
1045: $r->print("<td>");
1046: &dynmetaprint($r,$filelink,'count');
1047: &dynmetaprint($r,$filelink,'course');
1048: &dynmetaprint($r,$filelink,'stdno');
1049: &dynmetaprint($r,$filelink,'avetries');
1050: &dynmetaprint($r,$filelink,'difficulty');
1051: &dynmetaprint($r,$filelink,'disc');
1052: &dynmetaprint($r,$filelink,'clear');
1053: &dynmetaprint($r,$filelink,'technical');
1054: &dynmetaprint($r,$filelink,'correct');
1055: &dynmetaprint($r,$filelink,'helpful');
1056: &dynmetaprint($r,$filelink,'depth');
1057: $r->print(" </td>\n");
1058:
1059: }
1060: if ($hash{'display_attrs_10'} == 1) {
1061: my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
1062: if($source eq 'open') {
1063: my $sourcelink = &Apache::lonsource::make_link($filelink,$listname);
1064: my $quotable_sourcelink = &Apache::loncommon::escape_single($sourcelink);
1065: &Apache::loncommon::inhibit_menu_check(\$quotable_sourcelink);
1066: $r->print('<td>'."<a href=\"javascript:openWindow('"
1067: .$quotable_sourcelink.
1068: "', 'previewsource', '700', '700', 'no', 'yes','yes');\"".
1069: " target=\"_self\">Yes</a> "."</td>\n");
1070: } else { #A cuddled else. :P
1071: $r->print("<td> </td>\n");
1072: }
1073: }
1074: if ($hash{'display_attrs_11'} == 1) {
1075: # links
1076: &dynmetaread($filelink);
1077: $r->print('<td>');
1078: &coursecontext($r,$filelink);
1079: &dynmetaprint($r,$filelink,'goto_list');
1080: &dynmetaprint($r,$filelink,'comefrom_list');
1081: &dynmetaprint($r,$filelink,'sequsage_list');
1082: &dynmetaprint($r,$filelink,'dependencies');
1083: &dynmetaprint($r,$filelink,'course_list');
1084: $r->print('</td>');
1085: }
1086: if ($hash{'display_attrs_7'} == 1) {
1087: # Show resource
1088: my $output=&showpreview($filelink);
1089: $r->print('<td> '.($output eq '' ? ' ':$output).
1090: " </td>\n");
1091: }
1092: $r->print("</tr>\n");
1093: }
1094:
1095: # -- display directory
1096: if ($fnptr == $dirptr) {
1097: my $curdir = $startdir.$filecom[0].'/';
1098: my $anchor = $curdir;
1099: $anchor =~ s/\W//g;
1100: $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
1101: &begin_form ($r,$curdir);
1102: my $indentm1 = $indent-1;
1103: if ($indentm1 < 11 and $indentm1 > 0) {
1104: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$indentm1,
1105: ".gif class='LC_icon' />\n");
1106: } else {
1107: my $ten = int($indentm1/10.);
1108: my $rem = $indentm1%10.0;
1109: my $count = 0;
1110: while ($count < $ten) {
1111: $r->print ("<img alt=\"\" src=",$iconpath
1112: ,"whitespace10.gif class='LC_icon' />\n");
1113: $count++;
1114: }
1115: $r->print ("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
1116: ".gif class='LC_icon' />\n") if $rem > 0;
1117: }
1118: $r->print ('<input type="hidden" name="acts" value="" />');
1119: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
1120: 'folder_pointer_'.$diropen.'.gif"');
1121: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
1122: "\n");
1123: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
1124: $r->print ('<a href="javascript:gothere(\''
1125: .$quotable_curdir.'\')">'
1126: .'<img alt="'.&mt('Open Folder').'"src="'.
1127: $iconpath.'folder_'.$diropen.'.gif" class="LC_icon" /></a>'.
1128: "\n");
1129: $r->print ("$listname</form></td>\n");
1130: # Attributes
1131: my $filelink = $startdir.$filecom[0].'/default';
1132:
1133: if ($hash{'display_attrs_0'} == 1) {
1134: my $title = &Apache::lonnet::gettitle($filelink);
1135: $r->print('<td> '.($title eq '' ? ' ' : $title).
1136: ' </td>'."\n");
1137: }
1138: $r->print('<td align=right> ',
1139: $filecom[8]," </td>\n")
1140: if $hash{'display_attrs_1'} == 1;
1141: $r->print('<td> '.
1142: (localtime($filecom[9]))." </td>\n")
1143: if $hash{'display_attrs_2'} == 1;
1144: $r->print('<td> '.
1145: (localtime($filecom[10]))." </td>\n")
1146: if $hash{'display_attrs_3'} == 1;
1147:
1148: if ($hash{'display_attrs_4'} == 1) {
1149: my $author = &Apache::lonnet::metadata($filelink,'author');
1150: $r->print('<td> '.($author eq '' ? ' ' : $author).
1151: " </td>\n");
1152: }
1153: if ($hash{'display_attrs_5'} == 1) {
1154: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1155: # $keywords = ' ' if (!$keywords);
1156: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1157: " </td>\n");
1158: }
1159: if ($hash{'display_attrs_6'} == 1) {
1160: my $lang = &Apache::lonnet::metadata($filelink,'language');
1161: $lang = &Apache::loncommon::languagedescription($lang);
1162: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1163: " </td>\n");
1164: }
1165: if ($hash{'display_attrs_8'} == 1) {
1166: $r->print('<td> </td>');
1167: }
1168: if ($hash{'display_attrs_10'} == 1) {
1169: $r->print('<td> </td>');
1170: }
1171: if ($hash{'display_attrs_11'} == 1) {
1172: $r->print('<td> </td>');
1173: }
1174: if ($hash{'display_attrs_7'} == 1) {
1175: $r->print('<td> </td>');
1176: }
1177: $r->print('</tr>');
1178: }
1179:
1180: }
1181:
1182: sub coursecontext {
1183: my ($r,$filelink)=@_;
1184: my $filesymb=&Apache::lonnet::symbread($filelink);
1185: if ($filesymb) {
1186: my ($map,$index,$resource)=&Apache::lonnet::decode_symb($filesymb);
1187: $r->print(&mt('Already in this course:<br />[_1] in folder/map [_2].<br />',
1188: &Apache::lonnet::gettitle($resource),
1189: &Apache::lonnet::gettitle($map)));
1190: }
1191: }
1192:
1193: sub showpreview {
1194: my ($filelink)=@_;
1195: if ($filelink=~m-^(/ext/|http://)-) {
1196: return &mt('External Resource, preview not enabled');
1197: }
1198: my ($curfext)=($filelink=~/\.(\w+)$/);
1199: my $output='';
1200: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
1201: if ($embstyle eq 'ssi') {
1202: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
1203: '.tmp';
1204: if ((!$env{'form.updatedisplay'}) &&
1205: (-e $cache)) {
1206: open(FH,$cache);
1207: $output=join("\n",<FH>);
1208: close(FH);
1209: } else {
1210: # In update display mode, remove old cache. This is done to retroactively
1211: # clean up course context renderings.
1212: if (-e $cache) {
1213: unlink($cache);
1214: }
1215: $output=&Apache::lonnet::ssi_body($filelink);
1216: # Is access denied? Don't render, don't store
1217: if ($output=~/LONCAPAACCESSCONTROLERRORSCREEN/s) {
1218: $output='';
1219: # Was this rendered in course content? Don't store
1220: } elsif (!&Apache::lonnet::symbread($filelink)) {
1221: open(FH,">$cache");
1222: print FH $output;
1223: close(FH);
1224: }
1225: }
1226: $output='<font size="-2">'.$output.'</font>';
1227: } elsif ($embstyle eq 'img') {
1228: $output='<img alt="'.&mt('Preview').'" src="'.$filelink.'" />';
1229: } elsif ($filelink=~m{^/res/($match_domain)/($match_username)/}) {
1230: $output='<img alt="'.&mt('Preview').'" src="http://'.
1231: &Apache::lonnet::hostname(&Apache::lonnet::homeserver($2,$1)).
1232: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1233: }
1234: return $output;
1235: }
1236:
1237: sub dynmetaprint {
1238: my ($r,$filelink,$item)=@_;
1239: if ($dynhash{$filelink}->{$item}) {
1240: $r->print("\n<br />".$fieldnames{$item}.': '.
1241: &Apache::lonmeta::prettyprint($item,
1242: $dynhash{$filelink}->{$item},
1243: (($env{'form.catalogmode'} ne 'import')?'preview':''),
1244: '',
1245: (($env{'form.catalogmode'} eq 'import')?'document.forms.fileattr':''),1));
1246: }
1247: }
1248:
1249: # ------------------- prints the beginning of a form for directory or file link
1250: sub begin_form {
1251: my ($r,$uri) = @_;
1252: my $anchor = $uri;
1253: $anchor =~ s/\W//g;
1254: $uri=&Apache::loncommon::escape_single($uri);
1255: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1256: '#'.$anchor.
1257: '" onSubmit="return rep_dirpath(\''.$dnum.'\''.
1258: ',document.forms.fileattr.acts.value)" '.
1259: 'enctype="application/x-www-form-urlencoded">'."\n");
1260: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'" />'.
1261: "\n");
1262: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n");
1263: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
1264: $dnum++;
1265: }
1266:
1267: # --------- settings whenever the user causes the indexer window to be launched
1268: sub start_fresh_session {
1269: my ($hash) = @_;
1270: delete $hash->{'form.catalogmode'};
1271: delete $hash->{'form.mode'};
1272: delete $hash->{'form.form'};
1273: delete $hash->{'form.element'};
1274: delete $hash->{'form.omit'};
1275: delete $hash->{'form.only'};
1276: foreach (keys %{$hash}) {
1277: delete $hash->{$_} if (/^(pre_|store)/);
1278: }
1279: }
1280:
1281: # ------------------------------------------------------------------- setvalues
1282: sub setvalues {
1283: # setvalues is used in registerurl to synchronize the database
1284: # hash and environment hashes
1285: my ($H1,$h1key,$H2,$h2key) =@_;
1286: #
1287: if (exists $H2->{$h2key}) {
1288: $H1->{$h1key} = $H2->{$h2key};
1289: } elsif (exists $H1->{$h1key}) {
1290: $H2->{$h2key} = $H1->{$h1key};
1291: }
1292: }
1293:
1294: 1;
1295:
1296: sub cleanup {
1297: if (tied(%hash)){
1298: &Apache::lonnet::logthis('Cleanup indexer: hash');
1299: }
1300: return OK;
1301: }
1302:
1303:
1304:
1305:
1306:
1307: =head1 NAME
1308:
1309: Apache::lonindexer - mod_perl module for cross server filesystem browsing
1310:
1311: =head1 SYNOPSIS
1312:
1313: Invoked by /etc/httpd/conf/srm.conf:
1314:
1315: <LocationMatch "^/res.*/$">
1316: SetHandler perl-script
1317: PerlHandler Apache::lonindexer
1318: </LocationMatch>
1319:
1320: =head1 INTRODUCTION
1321:
1322: This module enables a scheme of browsing across a cross server.
1323:
1324: This is part of the LearningOnline Network with CAPA project
1325: described at http://www.lon-capa.org.
1326:
1327: =head1 BEGIN SUBROUTINE
1328:
1329: This routine is only run once after compilation.
1330:
1331: =over 4
1332:
1333: =item *
1334:
1335: Initializes %language hash table.
1336:
1337: =back
1338:
1339: =head1 HANDLER SUBROUTINE
1340:
1341: This routine is called by Apache and mod_perl.
1342:
1343: =over 4
1344:
1345: =item *
1346:
1347: read in machine configuration variables
1348:
1349: =item *
1350:
1351: see if called from an interactive mode
1352:
1353: =item *
1354:
1355: refresh environment with user database values (in %hash)
1356:
1357: =item *
1358:
1359: define extra fields and buttons in case of special mode
1360:
1361: =item *
1362:
1363: set catalogmodefunctions to have extra needed javascript functionality
1364:
1365: =item *
1366:
1367: print header
1368:
1369: =item *
1370:
1371: evaluate actions from previous page (both cumulatively and chronologically)
1372:
1373: =item *
1374:
1375: output title
1376:
1377: =item *
1378:
1379: get state of file attributes to be showing
1380:
1381: =item *
1382:
1383: output state of file attributes to be showing
1384:
1385: =item *
1386:
1387: output starting row to the indexed file/directory hierarchy
1388:
1389: =item *
1390:
1391: read in what directories have previously been set to "open"
1392:
1393: =item *
1394:
1395: if not at top level, provide an uplink arrow
1396:
1397: =item *
1398:
1399: recursively go through all the directories and output as appropriate
1400:
1401: =item *
1402:
1403: information useful for group import
1404:
1405: =item *
1406:
1407: end the tables
1408:
1409: =item *
1410:
1411: end the output and return
1412:
1413: =back
1414:
1415: =head1 OTHER SUBROUTINES
1416:
1417: =over 4
1418:
1419: =item *
1420:
1421: scanDir - recursive scan of a directory
1422:
1423: =item *
1424:
1425: get_list - get complete matched list based on the uri (returns an array)
1426:
1427: =item *
1428:
1429: match_ext - filters out files based on extensions (returns an array)
1430:
1431: =item *
1432:
1433: display_line - displays one line in appropriate table format
1434:
1435: =item *
1436:
1437: begin_form - prints the beginning of a form for directory or file link
1438:
1439: =item *
1440:
1441: start_fresh_session - settings whenever the user causes the indexer window
1442: to be launched
1443:
1444: =back
1445:
1446: =cut
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