1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.177 2007/08/17 21:33:19 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: my @file_categories = &Apache::loncommon::filecategories();
483: my %select_file_categories;
484: my @select_form_order = ('');
485: $select_file_categories{''} = 'All file types';
486: foreach my $cat(@file_categories) {
487: my $types = join ",",&Apache::loncommon::filecategorytypes($cat);
488: $select_file_categories{$types} = $cat;
489: push(@select_form_order,$types);
490: }
491: $select_file_categories{'select_form_order'} = [@select_form_order];
492: $r->print(&Apache::loncommon::select_form($typeselect,'only',
493: %select_file_categories
494: ));
495: $r->print(<<END);
496: File Type Displayed</label>
497: <br />
498: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
499: <input type="hidden" name="acts" value="" />
500: $closebutton $groupimportbutton
501: END
502: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
503: # -------------- Filter out sequence containment in crumbs and "recent folders"
504: my $storeuri=$uri;
505: $storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
506: $storeuri=~s/\/+/\//g;
507: # ---------------------------------------------------------------- Bread crumbs
508: $r->print(&Apache::lonhtmlcommon::crumbs($storeuri,'','',
509: (($env{'form.catalogmode'} eq 'import')?
510: 'document.forms.fileattr':'')).
511: &Apache::lonhtmlcommon::select_recent('residx','resrecent',
512: '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();'));
513: # -------------------------------------------------------- Resource Home Button
514: my $reshome=$env{'course.'.$env{'request.course.id'}.'.reshome'};
515: if ($reshome) {
516: $r->print("<font size='+2'><a href='");
517: if ($env{'form.catalogmode'} eq 'import') {
518: $r->print('javascript:document.forms.fileattr.action="'.&Apache::loncommon::inhibit_menu_check($reshome).'";document.forms.fileattr.submit();');
519: } else {
520: $r->print($reshome);
521: }
522: $r->print("'>".&mt('Home').'</a></font>');
523: }
524: $r->print('</form>');
525: # ------------------------------------------------------ Remember where we were
526: &Apache::loncommon::storeresurl($storeuri);
527: &Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
528: # -------------------------------------------------- Check All and Uncheck all
529: if ($env{'form.catalogmode'} eq 'import') {
530: $r->print('<br /><input type="button" value="'.&mt("Check All").'" id="checkallbutton" onClick="javascript:checkAll()" />');
531: $r->print('<input type="button" value="'.&mt("Uncheck All").'" id="uncheckallbutton" onClick="javascript:uncheckAll()" />');
532: }
533: # ----------------- output starting row to the indexed file/directory hierarchy
534: my $titleclr="#ddffff";
535: #$r->print(&initdebug());
536: #$r->print(&writedebug("Omit:@Omit")) if (@Omit);
537: #$r->print(&writedebug("Only:@Only")) if (@Only);
538: $r->print('<table width="100%" border="0"><tr><td bgcolor="#777777">'."\n");
539: $r->print('<table width="100%" border="0"><tr bgcolor="'.$titleclr.'">'."\n");
540: $r->print("<td $colspan><b>".&mt('Name')."</b></td>\n");
541: $r->print("<td><b>".&mt('Title')."</b></td>\n")
542: if ($hash{'display_attrs_0'} == 1);
543: $r->print("<td align=right><b>".&mt("Size")." (".&mt("bytes").") ".
544: "</b></td>\n") if ($hash{'display_attrs_1'} == 1);
545: $r->print("<td><b>".&mt("Last accessed")."</b></td>\n")
546: if ($hash{'display_attrs_2'} == 1);
547: $r->print("<td><b>".&mt("Last modified")."</b></td>\n")
548: if ($hash{'display_attrs_3'} == 1);
549: $r->print("<td><b>".&mt("Author(s)")."</b></td>\n")
550: if ($hash{'display_attrs_4'} == 1);
551: $r->print("<td><b>".&mt("Keywords")."</b></td>\n")
552: if ($hash{'display_attrs_5'} == 1);
553: $r->print("<td><b>".&mt("Language")."</b></td>\n")
554: if ($hash{'display_attrs_6'} == 1);
555: $r->print("<td><b>".&mt("Usage Statistics")." <br />(".
556: &mt("Courses/Network Hits").")</b> ".&mt('updated periodically')."</td>\n")
557: if ($hash{'display_attrs_8'} == 1);
558: $r->print("<td><b>".&mt("Source Available")."</b></td>\n")
559: if ($hash{'display_attrs_10'} == 1);
560: $r->print("<td><b>".&mt("Linked/Related Resources")."</b></td>\n")
561: if ($hash{'display_attrs_11'} == 1);
562: $r->print("<td><b>".&mt("Resource")."</b></td>\n")
563: if ($hash{'display_attrs_7'} == 1);
564: $r->print('</tr>');
565:
566: # ----------------- read in what directories have previously been set to "open"
567: foreach (keys %hash) {
568: if ($_ =~ /^diropen_status_/) {
569: my $key = $_;
570: $key =~ s/^diropen_status_//;
571: $dirs{$key} = $hash{$_};
572: }
573: }
574:
575: if ($env{'form.openuri'}) { # take care of review and refresh options
576: my $uri=$env{'form.openuri'};
577: if (exists($hash{'diropen_status_'.$uri})) {
578: my $cursta = $hash{'diropen_status_'.$uri};
579: $dirs{$uri} = 'open';
580: $hash{'diropen_status_'.$uri} = 'open';
581: if ($cursta eq 'open') {
582: $dirs{$uri} = 'closed';
583: $hash{'diropen_status_'.$uri} = 'closed';
584: }
585: } else {
586: $hash{'diropen_status_'.$uri} = 'open';
587: $dirs{$uri} = 'open';
588: }
589: }
590:
591: my $toplevel;
592: my $indent = 0;
593: $uri = $uri.'/' if $uri !~ /.*\/$/;
594:
595: if ($env{'form.dirPointer'} ne 'on') {
596: $hash{'top.level'} = $uri;
597: $toplevel = $uri;
598: } else {
599: $toplevel = $hash{'top.level'};
600: }
601:
602: # -------------------------------- if not at top level, provide an uplink arrow
603: if ($toplevel ne '/res/'){
604: my (@uri_com) = split(/\//,$uri);
605: pop @uri_com;
606: my $upone = join('/',@uri_com);
607: my @list = qw (0);
608: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
609: $indent = 1;
610: }
611:
612: # -------- recursively go through all the directories and output as appropriate
613: &scanDir ($r,$toplevel,$indent,\%hash);
614:
615:
616: # -------------------------------------------------------------- end the tables
617: $r->print('</table>');
618: # ---------------------------- embed hidden information useful for group import
619: $r->print("<form name='fnum' action=''>");
620: $r->print("<input type='hidden' name='fnum' value='$fnum' /></form>");
621: # -------------------------------------------------------------- end the tables
622: $r->print('</td></tr></table>');
623:
624: # --------------------------------------------------- end the output and return
625: $r->print(&Apache::loncommon::end_page()."\n");
626: }
627: if(! $c->aborted()) {
628: # write back into the temporary file
629: my %dbfile;
630: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
631: while (my($key,$value) = each(%hash)) {
632: $dbfile{$key}=$value;
633: }
634: untie(%dbfile);
635: }
636: }
637:
638: return OK;
639: }
640:
641: # ----------------------------------------------- recursive scan of a directory
642: sub scanDir {
643: my ($r,$startdir,$indent,$hashref)=@_;
644: my $c = $r->connection();
645: my ($compuri,$curdir);
646: my $dirptr=16384;
647: my $obs;
648: $indent++;
649: my %dupdirs = %dirs;
650: my @list=&get_list($r,$startdir);
651: foreach my $line (@list) {
652: return if ($c->aborted());
653: #This is a kludge, sorry aboot this
654: my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
655: next if($strip =~ /.*\.meta$/ | $obs eq '1');
656: my (@fileparts) = split(/\./,$strip);
657: if ($hash{'display_attrs_9'} != 1) {
658: # if not all versions to be shown
659: if (scalar(@fileparts) >= 3) {
660: my $fext = pop @fileparts;
661: my $ov = pop @fileparts;
662: my $fname = join ('.',@fileparts,$fext);
663: next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
664: }
665: }
666:
667: if ($dom eq 'domain') {
668: # dom list has full path /res/<domain name>/ already
669: $curdir='';
670: $compuri = (split(/\&/,$line))[0];
671: } else {
672: # user, dir & file have name only, i.e., w/o path
673: $compuri = join('',$startdir,$strip,'/');
674: $curdir = $startdir;
675: }
676: my $diropen = 'closed';
677: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
678: while (my ($key,$val)= each %dupdirs) {
679: if ($key eq $compuri and $val eq "open") {
680: $diropen = "opened";
681: delete($dupdirs{$key});
682: delete($dirs{$key});
683: }
684: }
685: }
686: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
687: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
688: }
689: $indent--;
690: }
691:
692: # --------------- get complete matched list based on the uri (returns an array)
693: sub get_list {
694: my ($r,$uri)=@_;
695: my @list=();
696: (my $luri = $uri) =~ s/\//_/g;
697: if ($env{'form.updatedisplay'}) {
698: foreach (keys %hash) {
699: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
700: delete $hash{$_} if ($_ =~ /^dirlist_timestamp_files_/);
701: }
702: }
703:
704: if (defined($hash{'dirlist_files_'.$luri}) &&
705: $hash{'dirlist_timestamp_files_'.$luri}+600 > (time)) {
706: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
707: } elsif ($uri=~/\.(page|sequence)\/$/) {
708: # is a page or a sequence
709: $uri=~s/\/$//;
710: $uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
711: $uri=~s/\/+/\//g;
712: foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
713: my @ratpart=split(/\:/,$_);
714: push(@list,&LONCAPA::map::qtescape($ratpart[1]));
715: }
716: $hash{'dirlist_files_'.$luri} = join("\n",@list);
717: } else {
718: # is really a directory
719: @list = &Apache::lonnet::dirlist($uri);
720: $hash{'dirlist_files_'.$luri} = join("\n",@list);
721: $hash{'dirlist_timestamp_files_'.$luri} = time;
722: }
723: return @list=&match_ext($r,@list);
724: }
725:
726: sub dynmetaread {
727: my $uri=shift;
728: if (($hash{'display_attrs_8'}==1) || ($hash{'display_attrs_11'}==1)) {
729: # We don't want the filename
730: $uri=~s/\/[^\/]+$//;
731: # Did we already see this?
732: my $builddir=$uri;
733: while ($builddir) {
734: if ($dynread{$builddir}) {
735: return 0;
736: }
737: $builddir=~s/\/[^\/]+$//;
738: }
739: # Actually get the data
740: %dynhash=
741: (%dynhash,&Apache::lonmeta::get_dynamic_metadata_from_sql($uri.'/'));
742: # Remember that we got it
743: $dynread{$uri}=1;
744: }
745: }
746:
747: sub initdebug {
748: my $start_page=
749: &Apache::loncommon::start_page('Debug',undef,
750: {'only_body' => 1,});
751: $start_page =~ s/\n/ /g;
752: return <<ENDJS;
753: <script type="text/javascript">
754: var debugging = true;
755: if (debugging) {
756: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
757: }
758:
759: function output(text) {
760: if (debugging) {
761: debuggingWindow.document.writeln(text);
762: }
763: }
764: output('$start_page<pre>');
765: </script>
766: ENDJS
767: }
768:
769: sub writedebug {
770: my ($text) = @_;
771: return "<script type=\"text/javascript\">output('$text');</script>";
772: }
773:
774: # -------------------- filters out files based on extensions (returns an array)
775: sub match_ext {
776: my ($r,@packlist)=@_;
777: my @trimlist;
778: my $nextline;
779: my @fileext;
780: my $dirptr=16384;
781:
782: foreach my $line (@packlist) {
783: chomp $line;
784: $line =~ s/^\/home\/httpd\/html//;
785: my @unpackline = split (/\&/,$line);
786: next if ($unpackline[0] eq '.');
787: next if ($unpackline[0] eq '..');
788: my @filecom = split (/\./,$unpackline[0]);
789: my $fext = pop(@filecom);
790: my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
791: if ($fnptr == 0 and $unpackline[3] ne "") {
792: my $embstyle = &Apache::loncommon::fileembstyle($fext);
793: push @trimlist,$line if (defined($embstyle) &&
794: ($embstyle ne 'hdn' or $fext eq 'meta'));
795: } else {
796: push @trimlist,$line;
797: }
798: }
799: @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
800: return @trimlist;
801: }
802:
803: # ------------------------------- displays one line in appropriate table format
804: sub display_line {
805: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
806: my (@pathfn, $fndir);
807: # there could be relative paths (files actually belonging into this directory)
808: # or absolute paths (for example, from sequences)
809: my $absolute;
810: my $pathprefix;
811: if ($line=~m|^/res/| && $startdir ne '') {
812: $absolute=1;
813: $pathprefix='';
814: } else {
815: $absolute=0;
816: $pathprefix=$startdir;
817: }
818: my $dirptr=16384;
819: my $fileclr="#ffffe6";
820: my $iconpath= $r->dir_config('lonIconsURL') . '/';
821:
822: my @filecom = split (/\&/,$line);
823: my @pathcom = split (/\//,$filecom[0]);
824: my $listname = $pathcom[scalar(@pathcom)-1];
825: my $fnptr = $filecom[3]&$dirptr;
826: my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
827: $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
828:
829: my $tabtag='</td>';
830: my $i=0;
831: while ($i<=11) {
832: $tabtag=join('',$tabtag,"<td> </td>")
833: if ($i != 9 &&
834: $hash{'display_attrs_'.$i} == 1);
835: $i++;
836: }
837: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
838:
839: # display uplink arrow
840: if ($filecom[1] eq 'viewOneUp') {
841: my $updir=$startdir;
842: # -------------- Filter out sequence containment in crumbs and "recent folders"
843: $updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
844: $updir=~s/\/+/\//g;
845:
846: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
847: $r->print("<td>\n");
848: $r->print ('<form method="post" name="dirpathUP" action="'.$updir.
849: '/" '.
850: 'onSubmit="return rep_dirpath(\'UP\','.
851: 'document.forms.fileattr.acts.value)" '.
852: 'enctype="application/x-www-form-urlencoded"'.
853: '>'."\n");
854: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
855: $r->print ('<input type=hidden name=openuri value="'.
856: $startdir.'" />'."\n");
857: $r->print ('<input type="hidden" name="acts" value="" />'."\n");
858: $r->print ('<input src="'.$iconpath.'arrow_up.gif"');
859: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
860: "\n");
861: $r->print(&mt("Up")."</form>$tabtag</tr>\n");
862: return OK;
863: }
864: # Do we have permission to look at this?
865:
866: if($filecom[15] ne '1') { return OK if (!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])); }
867:
868: # make absolute links appear on different background
869: if ($absolute) { $fileclr='#ccdd99'; }
870:
871: # display domain
872: if ($filecom[1] eq 'domain') {
873: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n")
874: if ($env{'form.dirPointer'} eq "on");
875: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
876: $r->print("<td>");
877: &begin_form ($r,$filecom[0]);
878: my $anchor = $filecom[0];
879: $anchor =~ s/\W//g;
880: $r->print ('<a name="'.$anchor.'"></a>');
881: $r->print ('<input type="hidden" name="acts" value="" />');
882: $r->print ('<input src="'.$iconpath.'folder_pointer_'.
883: $diropen.'.gif"');
884: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
885: "\n");
886: my $quotable_filecom = &Apache::loncommon::escape_single($filecom[0]);
887: $r->print ('<a href="javascript:gothere(\''.$quotable_filecom.
888: '\')"><img alt="" src="'.$iconpath.'server.gif"');
889: $r->print (' class="LC_icon" /></a>'."\n");
890: $r->print (&mt("Domain")." - $listname ");
891: if (&Apache::lonnet::domain($listname,'description')) {
892: $r->print("(".&Apache::lonnet::domain($listname,'description').
893: ")");
894: }
895: $r->print ("</form>$tabtag</tr>\n");
896: return OK;
897:
898: # display user directory
899: }
900: if ($filecom[1] eq 'user') {
901: # $r->print("<tr valign=$valign bgcolor=\"$fileclr\">$extrafield");
902: my $curdir = $startdir.$filecom[0].'/';
903: my $anchor = $curdir;
904: $anchor =~ s/\W//g;
905: $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
906: &begin_form ($r,$curdir);
907: $r->print ('<a name="'.$anchor.'"></a><img alt="" src="'.$iconpath.
908: 'whitespace1.gif" class="LC_icon" />'."\n");
909: $r->print ('<input type="hidden" name="acts" value="" />');
910: $r->print ('<input src="'.$iconpath.'folder_pointer_'.$diropen.
911: '.gif"');
912: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
913: "\n");
914: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
915: $r->print ('<a href="javascript:gothere(\''.$quotable_curdir
916: .'\')"><img alt="'.$msg.'" src="'.
917: $iconpath.'quill.gif" class="LC_indexer_icon" /></a>');
918: my $domain=(split(m|/|,$startdir))[2];
919: my $plainname=&Apache::loncommon::plainname($listname,$domain);
920: $r->print ($listname);
921: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
922: $r->print ('</form>'.$tabtag.'</tr>'."\n");
923: return OK;
924: }
925:
926: # display file
927: if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
928: my $title;
929: my $filelink = $pathprefix.$filecom[0];
930: if ($hash{'display_attrs_0'} == 1) {
931: $title = &Apache::lonnet::gettitle($filelink);
932: }
933: my @file_ext = split (/\./,$listname);
934: my $curfext = $file_ext[-1];
935: if (@Omit) {
936: foreach (@Omit) { return OK if ($curfext eq $_); }
937: }
938: if (@Only) {
939: my $skip = 1;
940: foreach (@Only) { $skip = 0 if ($curfext eq $_); }
941: return OK if ($skip > 0);
942: }
943: # Set the icon for the file
944: my $iconname = &Apache::loncommon::icon($listname);
945: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\"><td nowrap='nowrap' valign='top'>");
946:
947: if ($env{'form.catalogmode'} eq 'interactive') {
948: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
949: $r->print("<a href=\"javascript:select_data(\'",
950: $quotable_filelink,"')\">");
951: $r->print("<img alt=\"\" src='",$iconpath,"select.gif' class='LC_icon' /></a>".
952: "\n");
953: $r->print("</td><td nowrap='nowrap' valign='top'>");
954: } elsif ($env{'form.catalogmode'} eq 'import') {
955: $r->print("<form name='form$fnum' action=''>\n");
956: $r->print("<input type='checkbox' name='filelink"."' ".
957: "value='$filelink' onClick='".
958: "javascript:queue(\"form$fnum\")' ");
959: if ($hash{'store_'.$filelink}) {
960: $r->print("checked");
961: }
962: $r->print(" />\n");
963: $r->print("</form></td><td nowrap='nowrap' valign='top'>");
964: $hash{"pre_${fnum}_link"}=$filelink;
965: $hash{"pre_${fnum}_title"}=$title;
966: if (!$hash{"pre_${fnum}_title"}) {
967: $hash{"pre_${fnum}_title"} = 'Not_retrieved';
968: }
969: $fnum++;
970: }
971: # Form to open or close sequences
972: if ($filelink=~/\.(page|sequence)$/) {
973: my $curdir = $startdir.$filecom[0].'/';
974: &begin_form($r,$curdir);
975: $indent--;
976: }
977: # General indentation
978: if ($indent > 0 and $indent < 11) {
979: $r->print("<img alt=\"\" src='",$iconpath,"whitespace",$indent,
980: ".gif' class='LC_icon' />\n");
981: } elsif ($indent >0) {
982: my $ten = int($indent/10.);
983: my $rem = $indent%10.0;
984: my $count = 0;
985: while ($count < $ten) {
986: $r->print("<img alt=\"\" src=".$iconpath.
987: "whitespace10.gif class='LC_icon' />\n");
988: $count++;
989: }
990: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
991: ".gif class='LC_icon' />\n") if $rem > 0;
992: }
993: # Sequence open/close icon
994: if ($filelink=~/\.(page|sequence)$/) {
995: my $curdir = $startdir.$filecom[0].'/';
996: my $anchor = $curdir;
997: $anchor =~ s/\W//g;
998: $r->print ('<input type="hidden" name="acts" value="" />');
999: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
1000: 'folder_pointer_'.$diropen.'.gif"');
1001: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
1002: "\n");
1003: }
1004: # Filetype icons
1005: $r->print("<img alt=\"\" src='$iconname' class='LC_icon' />\n");
1006: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
1007:
1008: $r->print (" <a href=\"javascript:openWindow('".$quotable_filelink.
1009: "?inhibitmenu=yes','previewfile','450','500','no','yes','yes');\"".
1010: " target=\"_self\">$listname</a> ");
1011: $quotable_filelink = &Apache::loncommon::escape_single($filelink.'.meta');
1012: &Apache::loncommon::inhibit_menu_check(\$quotable_filelink);
1013: $r->print (" (<a href=\"javascript:openWindow('".$quotable_filelink.
1014: "?inhibitmenu=yes','metadatafile','500','550','no','yes','no');\" ".
1015: " target=\"_self\">metadata</a>) ");
1016: # Close form to open/close sequence
1017: if ($filelink=~/\.(page|sequence)$/) {
1018: $r->print('</form>');
1019: }
1020: $r->print("</td>\n");
1021: if ($hash{'display_attrs_0'} == 1) {
1022: $r->print('<td> '.($title eq '' ? ' ' : $title).
1023: ' </td>'."\n");
1024: }
1025: $r->print('<td align=right> ',
1026: $filecom[8]," </td>\n")
1027: if $hash{'display_attrs_1'} == 1;
1028: $r->print('<td> '.
1029: (localtime($filecom[9]))." </td>\n")
1030: if $hash{'display_attrs_2'} == 1;
1031: $r->print('<td> '.
1032: (localtime($filecom[10]))." </td>\n")
1033: if $hash{'display_attrs_3'} == 1;
1034:
1035: if ($hash{'display_attrs_4'} == 1) {
1036: my $author = &Apache::lonnet::metadata($filelink,'author');
1037: $r->print('<td> '.($author eq '' ? ' ' : $author).
1038: " </td>\n");
1039: }
1040: if ($hash{'display_attrs_5'} == 1) {
1041: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1042: # $keywords = ' ' if (!$keywords);
1043: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1044: " </td>\n");
1045: }
1046: #'
1047:
1048: if ($hash{'display_attrs_6'} == 1) {
1049: my $lang = &Apache::lonnet::metadata($filelink,'language');
1050: $lang = &Apache::loncommon::languagedescription($lang);
1051: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1052: " </td>\n");
1053: }
1054: if ($hash{'display_attrs_8'} == 1) {
1055: # statistics
1056: &dynmetaread($filelink);
1057: $r->print("<td>");
1058: &dynmetaprint($r,$filelink,'count');
1059: &dynmetaprint($r,$filelink,'course');
1060: &dynmetaprint($r,$filelink,'stdno');
1061: &dynmetaprint($r,$filelink,'avetries');
1062: &dynmetaprint($r,$filelink,'difficulty');
1063: &dynmetaprint($r,$filelink,'disc');
1064: &dynmetaprint($r,$filelink,'clear');
1065: &dynmetaprint($r,$filelink,'technical');
1066: &dynmetaprint($r,$filelink,'correct');
1067: &dynmetaprint($r,$filelink,'helpful');
1068: &dynmetaprint($r,$filelink,'depth');
1069: $r->print(" </td>\n");
1070:
1071: }
1072: if ($hash{'display_attrs_10'} == 1) {
1073: my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
1074: if($source eq 'open') {
1075: my $sourcelink = &Apache::lonsource::make_link($filelink,$listname);
1076: my $quotable_sourcelink = &Apache::loncommon::escape_single($sourcelink);
1077: &Apache::loncommon::inhibit_menu_check(\$quotable_sourcelink);
1078: $r->print('<td>'."<a href=\"javascript:openWindow('"
1079: .$quotable_sourcelink.
1080: "', 'previewsource', '700', '700', 'no', 'yes','yes');\"".
1081: " target=\"_self\">Yes</a> "."</td>\n");
1082: } else { #A cuddled else. :P
1083: $r->print("<td> </td>\n");
1084: }
1085: }
1086: if ($hash{'display_attrs_11'} == 1) {
1087: # links
1088: &dynmetaread($filelink);
1089: $r->print('<td>');
1090: &coursecontext($r,$filelink);
1091: &dynmetaprint($r,$filelink,'goto_list');
1092: &dynmetaprint($r,$filelink,'comefrom_list');
1093: &dynmetaprint($r,$filelink,'sequsage_list');
1094: &dynmetaprint($r,$filelink,'dependencies');
1095: &dynmetaprint($r,$filelink,'course_list');
1096: $r->print('</td>');
1097: }
1098: if ($hash{'display_attrs_7'} == 1) {
1099: # Show resource
1100: my $output=&showpreview($filelink);
1101: $r->print('<td> '.($output eq '' ? ' ':$output).
1102: " </td>\n");
1103: }
1104: $r->print("</tr>\n");
1105: }
1106:
1107: # -- display directory
1108: if ($fnptr == $dirptr) {
1109: my $curdir = $startdir.$filecom[0].'/';
1110: my $anchor = $curdir;
1111: $anchor =~ s/\W//g;
1112: $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
1113: &begin_form ($r,$curdir);
1114: my $indentm1 = $indent-1;
1115: if ($indentm1 < 11 and $indentm1 > 0) {
1116: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$indentm1,
1117: ".gif class='LC_icon' />\n");
1118: } else {
1119: my $ten = int($indentm1/10.);
1120: my $rem = $indentm1%10.0;
1121: my $count = 0;
1122: while ($count < $ten) {
1123: $r->print ("<img alt=\"\" src=",$iconpath
1124: ,"whitespace10.gif class='LC_icon' />\n");
1125: $count++;
1126: }
1127: $r->print ("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
1128: ".gif class='LC_icon' />\n") if $rem > 0;
1129: }
1130: $r->print ('<input type="hidden" name="acts" value="" />');
1131: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
1132: 'folder_pointer_'.$diropen.'.gif"');
1133: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
1134: "\n");
1135: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
1136: $r->print ('<a href="javascript:gothere(\''
1137: .$quotable_curdir.'\')">'
1138: .'<img alt="'.&mt('Open Folder').'"src="'.
1139: $iconpath.'folder_'.$diropen.'.gif" class="LC_icon" /></a>'.
1140: "\n");
1141: $r->print ("$listname</form></td>\n");
1142: # Attributes
1143: my $filelink = $startdir.$filecom[0].'/default';
1144:
1145: if ($hash{'display_attrs_0'} == 1) {
1146: my $title = &Apache::lonnet::gettitle($filelink);
1147: $r->print('<td> '.($title eq '' ? ' ' : $title).
1148: ' </td>'."\n");
1149: }
1150: $r->print('<td align=right> ',
1151: $filecom[8]," </td>\n")
1152: if $hash{'display_attrs_1'} == 1;
1153: $r->print('<td> '.
1154: (localtime($filecom[9]))." </td>\n")
1155: if $hash{'display_attrs_2'} == 1;
1156: $r->print('<td> '.
1157: (localtime($filecom[10]))." </td>\n")
1158: if $hash{'display_attrs_3'} == 1;
1159:
1160: if ($hash{'display_attrs_4'} == 1) {
1161: my $author = &Apache::lonnet::metadata($filelink,'author');
1162: $r->print('<td> '.($author eq '' ? ' ' : $author).
1163: " </td>\n");
1164: }
1165: if ($hash{'display_attrs_5'} == 1) {
1166: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1167: # $keywords = ' ' if (!$keywords);
1168: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1169: " </td>\n");
1170: }
1171: if ($hash{'display_attrs_6'} == 1) {
1172: my $lang = &Apache::lonnet::metadata($filelink,'language');
1173: $lang = &Apache::loncommon::languagedescription($lang);
1174: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1175: " </td>\n");
1176: }
1177: if ($hash{'display_attrs_8'} == 1) {
1178: $r->print('<td> </td>');
1179: }
1180: if ($hash{'display_attrs_10'} == 1) {
1181: $r->print('<td> </td>');
1182: }
1183: if ($hash{'display_attrs_11'} == 1) {
1184: $r->print('<td> </td>');
1185: }
1186: if ($hash{'display_attrs_7'} == 1) {
1187: $r->print('<td> </td>');
1188: }
1189: $r->print('</tr>');
1190: }
1191:
1192: }
1193:
1194: sub coursecontext {
1195: my ($r,$filelink)=@_;
1196: my $filesymb=&Apache::lonnet::symbread($filelink);
1197: if ($filesymb) {
1198: my ($map,$index,$resource)=&Apache::lonnet::decode_symb($filesymb);
1199: $r->print(&mt('Already in this course:<br />[_1] in folder/map [_2].<br />',
1200: &Apache::lonnet::gettitle($resource),
1201: &Apache::lonnet::gettitle($map)));
1202: }
1203: }
1204:
1205: sub showpreview {
1206: my ($filelink)=@_;
1207: if ($filelink=~m-^(/ext/|http://)-) {
1208: return &mt('External Resource, preview not enabled');
1209: }
1210: my ($curfext)=($filelink=~/\.(\w+)$/);
1211: my $output='';
1212: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
1213: if ($embstyle eq 'ssi') {
1214: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
1215: '.tmp';
1216: if ((!$env{'form.updatedisplay'}) &&
1217: (-e $cache)) {
1218: open(FH,$cache);
1219: $output=join("\n",<FH>);
1220: close(FH);
1221: } else {
1222: # In update display mode, remove old cache. This is done to retroactively
1223: # clean up course context renderings.
1224: if (-e $cache) {
1225: unlink($cache);
1226: }
1227: $output=&Apache::lonnet::ssi_body($filelink);
1228: # Is access denied? Don't render, don't store
1229: if ($output=~/LONCAPAACCESSCONTROLERRORSCREEN/s) {
1230: $output='';
1231: # Was this rendered in course content? Don't store
1232: } elsif (!&Apache::lonnet::symbread($filelink)) {
1233: open(FH,">$cache");
1234: print FH $output;
1235: close(FH);
1236: }
1237: }
1238: $output='<font size="-2">'.$output.'</font>';
1239: } elsif ($embstyle eq 'img') {
1240: $output='<img alt="'.&mt('Preview').'" src="'.$filelink.'" />';
1241: } elsif ($filelink=~m{^/res/($match_domain)/($match_username)/}) {
1242: $output='<img alt="'.&mt('Preview').'" src="http://'.
1243: &Apache::lonnet::hostname(&Apache::lonnet::homeserver($2,$1)).
1244: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1245: }
1246: return $output;
1247: }
1248:
1249: sub dynmetaprint {
1250: my ($r,$filelink,$item)=@_;
1251: if ($dynhash{$filelink}->{$item}) {
1252: $r->print("\n<br />".$fieldnames{$item}.': '.
1253: &Apache::lonmeta::prettyprint($item,
1254: $dynhash{$filelink}->{$item},
1255: (($env{'form.catalogmode'} ne 'import')?'preview':''),
1256: '',
1257: (($env{'form.catalogmode'} eq 'import')?'document.forms.fileattr':''),1));
1258: }
1259: }
1260:
1261: # ------------------- prints the beginning of a form for directory or file link
1262: sub begin_form {
1263: my ($r,$uri) = @_;
1264: my $anchor = $uri;
1265: $anchor =~ s/\W//g;
1266: $uri=&Apache::loncommon::escape_single($uri);
1267: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1268: '#'.$anchor.
1269: '" onSubmit="return rep_dirpath(\''.$dnum.'\''.
1270: ',document.forms.fileattr.acts.value)" '.
1271: 'enctype="application/x-www-form-urlencoded">'."\n");
1272: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'" />'.
1273: "\n");
1274: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n");
1275: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
1276: $dnum++;
1277: }
1278:
1279: # --------- settings whenever the user causes the indexer window to be launched
1280: sub start_fresh_session {
1281: my ($hash) = @_;
1282: delete $hash->{'form.catalogmode'};
1283: delete $hash->{'form.mode'};
1284: delete $hash->{'form.form'};
1285: delete $hash->{'form.element'};
1286: delete $hash->{'form.omit'};
1287: delete $hash->{'form.only'};
1288: foreach (keys %{$hash}) {
1289: delete $hash->{$_} if (/^(pre_|store)/);
1290: }
1291: }
1292:
1293: # ------------------------------------------------------------------- setvalues
1294: sub setvalues {
1295: # setvalues is used in registerurl to synchronize the database
1296: # hash and environment hashes
1297: my ($H1,$h1key,$H2,$h2key) =@_;
1298: #
1299: if (exists $H2->{$h2key}) {
1300: $H1->{$h1key} = $H2->{$h2key};
1301: } elsif (exists $H1->{$h1key}) {
1302: $H2->{$h2key} = $H1->{$h1key};
1303: }
1304: }
1305:
1306: 1;
1307:
1308: sub cleanup {
1309: if (tied(%hash)){
1310: &Apache::lonnet::logthis('Cleanup indexer: hash');
1311: }
1312: return OK;
1313: }
1314:
1315:
1316:
1317:
1318:
1319: =head1 NAME
1320:
1321: Apache::lonindexer - mod_perl module for cross server filesystem browsing
1322:
1323: =head1 SYNOPSIS
1324:
1325: Invoked by /etc/httpd/conf/srm.conf:
1326:
1327: <LocationMatch "^/res.*/$">
1328: SetHandler perl-script
1329: PerlHandler Apache::lonindexer
1330: </LocationMatch>
1331:
1332: =head1 INTRODUCTION
1333:
1334: This module enables a scheme of browsing across a cross server.
1335:
1336: This is part of the LearningOnline Network with CAPA project
1337: described at http://www.lon-capa.org.
1338:
1339: =head1 BEGIN SUBROUTINE
1340:
1341: This routine is only run once after compilation.
1342:
1343: =over 4
1344:
1345: =item *
1346:
1347: Initializes %language hash table.
1348:
1349: =back
1350:
1351: =head1 HANDLER SUBROUTINE
1352:
1353: This routine is called by Apache and mod_perl.
1354:
1355: =over 4
1356:
1357: =item *
1358:
1359: read in machine configuration variables
1360:
1361: =item *
1362:
1363: see if called from an interactive mode
1364:
1365: =item *
1366:
1367: refresh environment with user database values (in %hash)
1368:
1369: =item *
1370:
1371: define extra fields and buttons in case of special mode
1372:
1373: =item *
1374:
1375: set catalogmodefunctions to have extra needed javascript functionality
1376:
1377: =item *
1378:
1379: print header
1380:
1381: =item *
1382:
1383: evaluate actions from previous page (both cumulatively and chronologically)
1384:
1385: =item *
1386:
1387: output title
1388:
1389: =item *
1390:
1391: get state of file attributes to be showing
1392:
1393: =item *
1394:
1395: output state of file attributes to be showing
1396:
1397: =item *
1398:
1399: output starting row to the indexed file/directory hierarchy
1400:
1401: =item *
1402:
1403: read in what directories have previously been set to "open"
1404:
1405: =item *
1406:
1407: if not at top level, provide an uplink arrow
1408:
1409: =item *
1410:
1411: recursively go through all the directories and output as appropriate
1412:
1413: =item *
1414:
1415: information useful for group import
1416:
1417: =item *
1418:
1419: end the tables
1420:
1421: =item *
1422:
1423: end the output and return
1424:
1425: =back
1426:
1427: =head1 OTHER SUBROUTINES
1428:
1429: =over 4
1430:
1431: =item *
1432:
1433: scanDir - recursive scan of a directory
1434:
1435: =item *
1436:
1437: get_list - get complete matched list based on the uri (returns an array)
1438:
1439: =item *
1440:
1441: match_ext - filters out files based on extensions (returns an array)
1442:
1443: =item *
1444:
1445: display_line - displays one line in appropriate table format
1446:
1447: =item *
1448:
1449: begin_form - prints the beginning of a form for directory or file link
1450:
1451: =item *
1452:
1453: start_fresh_session - settings whenever the user causes the indexer window
1454: to be launched
1455:
1456: =back
1457:
1458: =cut
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