1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.185 2009/02/02 19:38:12 jms 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: #SB 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: #SB $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
181: $extrafield='<td valign="bottom">'.
182: '<img alt="" src="'.$iconpath.'whitespace1.gif"'.
183: ' class="LC_icon" /></td>';
184: $colspan=" colspan='2' ";
185: my $cl=&mt('Close');
186: $closebutton=<<END;
187: <input type="button" name="close" value='$cl' onClick="self.close()" />
188: END
189: }
190: elsif ($env{'form.catalogmode'} eq 'import') {
191: #SB $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
192: $extrafield='<td valign="bottom">'.
193: '<img alt="" src="'.$iconpath.'whitespace1.gif"'.
194: ' class="LC_icon" /></td>';
195: $colspan=" colspan='2' ";
196: my $cl=&mt('Close');
197: my $gi=&mt('Import');
198: $closebutton=<<END;
199: <input type="button" name="close" value='$cl' onClick="self.close()" />
200: END
201: $groupimportbutton=<<END;
202: <input type="button" name="groupimport" value='$gi'
203: onClick="javascript:select_group()" />
204: END
205: }
206: # Additions made by Matthew to make the browser a little easier to deal
207: # with in the future.
208: #
209: # $mode (at this time) indicates if we are in edit mode.
210: # $form is the name of the form that the URL is placed when the
211: # selection is made.
212: # $element is the name of the element in $formname which receives
213: # the URL.
214: #&Apache::lonxml::debug('Checking mode, form, element');
215: &setvalues(\%hash,'form.mode' ,\%env,'form.mode' );
216: &setvalues(\%hash,'form.form' ,\%env,'form.form' );
217: &setvalues(\%hash,'form.element' ,\%env,'form.element');
218: &setvalues(\%hash,'form.titleelement',\%env,'form.titleelement');
219: &setvalues(\%hash,'form.only' ,\%env,'form.only' );
220: &setvalues(\%hash,'form.omit' ,\%env,'form.omit' );
221:
222: # Deal with 'omit' and 'only'
223: if (exists $env{'form.omit'}) {
224: @Omit = split(',',$env{'form.omit'});
225: }
226: if (exists $env{'form.only'}) {
227: @Only = split(',',$env{'form.only'});
228: }
229:
230: my $mode = $env{'form.mode'};
231: my ($form,$element,$titleelement);
232: if ($mode eq 'edit' || $mode eq 'parmset') {
233: $form = $env{'form.form'};
234: $element = $env{'form.element'};
235: $titleelement = $env{'form.titleelement'};
236: }
237: #&Apache::lonxml::debug("mode=$mode form=$form element=$element titleelement=$titleelement");
238: # ------ set catalogmodefunctions to have extra needed javascript functionality
239: my $catalogmodefunctions='';
240: if ($env{'form.catalogmode'} eq 'interactive' or
241: $env{'form.catalogmode'} eq 'import') {
242: # The if statement below sets us up to use the old version
243: # by default (ie. if $mode is undefined). This is the easy
244: # way out. Hopefully in the future I'll find a way to get
245: # the calls dealt with in a more comprehensive manner.
246:
247: #
248: # There is now also mode "simple", which is for the simple version of the rat
249: #
250: #
251: if (!defined($mode) || ($mode ne 'edit' && $mode ne 'parmset')) {
252: my $location = "/adm/groupsort?&inhibitmenu=yes&catalogmode=import&";
253: $location .= "mode=".$mode."&";
254: $location .= "acts=";
255: $catalogmodefunctions=<<"END";
256: function select_data(url) {
257: changeURL(url);
258: self.close();
259: }
260: function select_group() {
261: window.location="$location"+document.forms.fileattr.acts.value;
262: }
263: function changeURL(val) {
264: if (opener.inf) {
265: if (opener.inf.document.forms.resinfo.elements.u) {
266: opener.inf.document.forms.resinfo.elements.u.value=val;
267: }
268: }
269: }
270: END
271: } elsif ($mode eq 'edit') { # we are in 'edit' mode
272: my $location = "/adm/groupsort?catalogmode=interactive&";
273: $location .= "form=$form&element=$element&mode=edit&acts=";
274: $catalogmodefunctions=<<END;
275: // mode = $mode
276: function select_data(url) {
277: var location = "/res/?launch=2&form=$form&element=$element&titleelement=$titleelement&acts=" + url;
278: window.location=location;
279: if (window.opener.document.forms["$form"].elements["$element"].value != url) {
280: window.opener.unClean();
281: }
282: }
283: function select_group() {
284: window.location="$location"+document.forms.fileattr.acts.value;
285: }
286:
287: function changeURL(val) {
288: if (window.opener.document) {
289: window.opener.document.forms["$form"].elements["$element"].value=val;
290: } else {
291: alert("The file you selected is: "+val);
292: }
293: }
294: END
295: if (!$titleelement) {
296: $catalogmodefunctions.='function changeTitle(val) {}';
297: } else {
298: $catalogmodefunctions.=<<END;
299: function changeTitle(val) {
300: if (window.opener.document) {
301: window.opener.document.forms["$form"].elements["$titleelement"].value=val;
302: } else {
303: alert("The title of the file you selected is: "+val);
304: }
305: }
306: END
307: }
308: } elsif ($mode eq 'parmset') {
309: my $location = "/adm/groupsort?catalogmode=interactive&";
310: $location .= "form=$form&element=$element&mode=parmset&acts=";
311: $catalogmodefunctions=<<END;
312: // mode = $mode
313: function select_data(url) {
314: changeURL(url);
315: self.close();
316: }
317:
318: function select_group() {
319: window.location="$location"+document.forms.fileattr.acts.value;
320: }
321:
322: function changeURL(val) {
323: if (window.opener.document) {
324: var elementname = "$element"+"_value";
325: var checkboxname = "$element"+"_setparmval";
326: window.opener.document.forms["$form"].elements[elementname].value=val;
327: window.opener.document.forms["$form"].elements[checkboxname].checked=true;
328: } else {
329: alert("The file you selected is: "+val);
330: }
331: }
332:
333: END
334: }
335: }
336: $catalogmodefunctions.=<<END;
337: var acts='';
338: function rep_dirpath(suffix,val) {
339: eval("document.forms.dirpath"+suffix+".acts.value=val");
340: }
341: END
342: if ($env{'form.catalogmode'} eq 'import') {
343: $catalogmodefunctions.=<<END;
344: function queue(val) {
345: if (eval("document.forms."+val+".filelink.checked")) {
346: var l=val.length;
347: var v=val.substring(4,l);
348: document.forms.fileattr.acts.value+='1a'+v+'b';
349: }
350: else {
351: var l=val.length;
352: var v=val.substring(4,l);
353: document.forms.fileattr.acts.value+='0a'+v+'b';
354: }
355: }
356: END
357: }
358:
359: my $inhibit_menu = "+'&".&Apache::loncommon::inhibit_menu_check()."'";
360: # ---------------------------------------------------------------- Print Header
361:
362: my $js = <<"ENDHEADER";
363: <script type="text/javascript">
364: $catalogmodefunctions;
365: function update_only(field) {
366: alert(field.name);
367: }
368: function checkAll() {
369: var numForms = document.forms.length;
370: for (i=0;i<numForms;i++) {
371: var numElements = document.forms[i].elements.length;
372: for (j=0;j<numElements;j++){
373: var fieldName = document.forms[i].elements[j].name;
374: if (fieldName == 'filelink') {
375: document.forms[i].elements[j].checked = true;
376: queue(document.forms[i].name);
377: }
378: }
379: }
380: }
381: function uncheckAll() {
382: var numForms = document.forms.length;
383: for (i=0;i<numForms;i++) {
384: var numElements = document.forms[i].elements.length;
385: for (j=0;j<numElements;j++){
386: var fieldName = document.forms[i].elements[j].name;
387: if (fieldName == 'filelink') {
388: document.forms[i].elements[j].checked = false;
389: queue(document.forms[i].name);
390: }
391: }
392: }
393: }
394: function openWindow(url, wdwName, w, h, toolbar,scrollbar,locationbar) {
395: var xpos = (screen.width-w)/2;
396: xpos = (xpos < 0) ? '0' : xpos;
397: var ypos = (screen.height-h)/2-30;
398: ypos = (ypos < 0) ? '0' : ypos;
399: var options = "width=" + w + ",height=" + h + ",screenx="+xpos+",screeny="+ypos+",";
400: options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
401: options += "menubar=no,toolbar="+toolbar+",location="+locationbar+",directories=no";
402: var newWin = window.open(url, wdwName, options);
403: newWin.focus();
404: }
405: function gothere(val) {
406: window.location=val+'?acts='+document.forms.fileattr.acts.value$inhibit_menu;
407: }
408: </script>
409: ENDHEADER
410:
411: my ($headerdom)=($uri=~m{^/res/($match_domain)/});
412: $r->print(&Apache::loncommon::start_page('Browse Resources',$js,
413: {'domain' => $headerdom,}));
414: # ---------------------------------- get state of file types to be showing
415: if ($env{'form.only'}) {
416: $typeselect = $env{'form.only'};
417: } else {
418: $typeselect = '';
419: }
420:
421: # ---------------------------------- get state of file attributes to be showing
422: if ($env{'form.attrs'}) {
423: for (my $i=0; $i<=12; $i++) {
424: delete $hash{'display_attrs_'.$i};
425: if ($env{'form.attr'.$i} == 1) {
426: $attrchk[$i] = 'checked';
427: $hash{'display_attrs_'.$i} = 1;
428: }
429: }
430: } else {
431: for (my $i=0; $i<=12; $i++) {
432: $attrchk[$i] = 'checked' if $hash{'display_attrs_'.$i} == 1;
433: }
434: }
435:
436: # ------------------------------- output state of file attributes to be showing
437: # All versions has to the last item
438: # since it does not take an extra col
439: my %lt=&Apache::lonlocal::texthash(
440: 'ti' => 'Title',
441: 'si' => 'Size',
442: 'la' => 'Last access',
443: 'lm' => 'Last modified',
444: 'st' => 'Statistics',
445: 'au' => 'Author',
446: 'kw' => 'Keywords',
447: 'sb' => 'Subject',
448: 'ln' => 'Language',
449: 'sa' => 'Source Available',
450: 'sr' => 'Show resource',
451: 'li' => 'Linked/Related Resources',
452: 'av' => 'All versions',
453: 'ud' => 'Update Display',
454: 'pr' => 'Problems',
455: 'gr' => 'Graphics',
456: 'at' => 'All types',
457: 'hd' => 'Display Options'
458: );
459: $r->print(<<END);
460: <fieldset>
461: <legend>$lt{'hd'}</legend>
462: <form method="post" name="fileattr" action="$uri"
463: enctype="application/x-www-form-urlencoded">
464: <label><input type="checkbox" name="attr9" value="1" $attrchk[9] onClick="this.form.submit();" /> $lt{'av'}</label>
465: <table border="0">
466: <tr>
467: <td><label><input type="checkbox" name="attr0" value="1" $attrchk[0] onClick="this.form.submit();" /> $lt{'ti'}</label></td>
468: <td><label><input type="checkbox" name="attr4" value="1" $attrchk[4] onClick="this.form.submit();" /> $lt{'au'}</label></td>
469: <td><label><input type="checkbox" name="attr5" value="1" $attrchk[5] onClick="this.form.submit();" /> $lt{'kw'}</label></td>
470: <td><label><input type="checkbox" name="attr6" value="1" $attrchk[6] onClick="this.form.submit();" /> $lt{'ln'}</label></td>
471: </tr>
472: <tr>
473: <td><label><input type="checkbox" name="attr1" value="1" $attrchk[1] onClick="this.form.submit();" /> $lt{'si'}</label></td>
474: <td><label><input type="checkbox" name="attr2" value="1" $attrchk[2] onClick="this.form.submit();" /> $lt{'la'}</label></td>
475: <td><label><input type="checkbox" name="attr3" value="1" $attrchk[3] onClick="this.form.submit();" /> $lt{'lm'}</label></td>
476: <td><label><input type="checkbox" name="attr10" value="1" $attrchk[10] onClick="this.form.submit();" /> $lt{'sa'}</label></td>
477: </tr>
478: <tr>
479: <td><label><input type="checkbox" name="attr8" value="1" $attrchk[8] onClick="this.form.submit();" /> $lt{'st'}</label></td>
480: <td><label><input type="checkbox" name="attr11" value="1" $attrchk[11] onClick="this.form.submit();" /> $lt{'li'}</label></td>
481: <td><label><input type="checkbox" name="attr7" value="1" $attrchk[7] onClick="this.form.submit();" /> $lt{'sr'}</label></td>
482: <td><label><input type="checkbox" name="attr12" value="1" $attrchk[12] onClick="this.form.submit();" /> $lt{'sb'}</label></td>
483: <td> </td>
484: </tr>
485: </table>
486: <input type="hidden" name="attrs" value="1" />
487: END
488: my @file_categories = &Apache::loncommon::filecategories();
489: my %select_file_categories;
490: my @select_form_order = ('');
491: $select_file_categories{''} = &mt('All file types');
492: foreach my $cat (@file_categories) {
493: my $types = join(",",&Apache::loncommon::filecategorytypes($cat));
494: $select_file_categories{$types} = $cat;
495: push(@select_form_order,$types);
496: }
497: $select_file_categories{'select_form_order'} = \@select_form_order;
498: my $type_element=
499: &Apache::loncommon::select_form($typeselect,'only',
500: %select_file_categories);
501: $type_element = '<label>'.&mt('File Type Displayed: [_1]',
502: $type_element).'</label>';
503: $r->print($type_element
504: .'</fieldset>');
505: $r->print(<<END);
506: <br />
507: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
508: <input type="hidden" name="acts" value="" />
509: $closebutton $groupimportbutton
510: END
511: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
512:
513: # -------------- Filter out sequence containment in crumbs and "recent folders"
514: my $storeuri=$uri;
515: $storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
516: $storeuri=~s/\/+/\//g;
517: # ---------------------------------------------------------------- Bread crumbs
518: $r->print(&Apache::lonhtmlcommon::crumbs($storeuri,'','',
519: (($env{'form.catalogmode'} eq 'import')?
520: 'document.forms.fileattr':'')).
521: &Apache::lonhtmlcommon::select_recent('residx','resrecent',
522: '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();'));
523: # -------------------------------------------------------- Resource Home Button
524: my $reshome=$env{'course.'.$env{'request.course.id'}.'.reshome'};
525: if ($reshome) {
526: $r->print("<font size='+2'><a href='");
527: if ($env{'form.catalogmode'} eq 'import') {
528: $r->print('javascript:document.forms.fileattr.action="'.&Apache::loncommon::inhibit_menu_check($reshome).'";document.forms.fileattr.submit();');
529: } else {
530: $r->print($reshome);
531: }
532: $r->print("'>".&mt('Home').'</a></font>');
533: }
534: $r->print('</form>');
535: # ------------------------------------------------------ Remember where we were
536: &Apache::loncommon::storeresurl($storeuri);
537: &Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
538: # -------------------------------------------------- Check All and Uncheck all
539: if ($env{'form.catalogmode'} eq 'import') {
540: $r->print('<br /><input type="button" value="'.&mt("Check All").'" id="checkallbutton" onClick="javascript:checkAll()" />');
541: $r->print('<input type="button" value="'.&mt("Uncheck All").'" id="uncheckallbutton" onClick="javascript:uncheckAll()" />');
542: }
543: # ----------------- output starting row to the indexed file/directory hierarchy
544: #$r->print(&initdebug());
545: #$r->print(&writedebug("Omit:@Omit")) if (@Omit);
546: #$r->print(&writedebug("Only:@Only")) if (@Only);
547: $r->print('<br /><br />');
548: $r->print(&Apache::loncommon::start_data_table()
549: .&Apache::loncommon::start_data_table_header_row());
550: $r->print("<th $colspan>".&mt('Name')."</th>\n");
551: $r->print("<th>".&mt('Title')."</th>\n")
552: if ($hash{'display_attrs_0'} == 1);
553: $r->print('<th align="right">'.&mt("Size")." (".&mt("bytes").") ".
554: "</th>\n") if ($hash{'display_attrs_1'} == 1);
555: $r->print("<th>".&mt("Last accessed")."</th>\n")
556: if ($hash{'display_attrs_2'} == 1);
557: $r->print("<th>".&mt("Last modified")."</th>\n")
558: if ($hash{'display_attrs_3'} == 1);
559: $r->print("<th>".&mt("Author(s)")."</th>\n")
560: if ($hash{'display_attrs_4'} == 1);
561: $r->print("<th>".&mt("Keywords")."</th>\n")
562: if ($hash{'display_attrs_5'} == 1);
563: $r->print("<th>".&mt("Language")."</th>\n")
564: if ($hash{'display_attrs_6'} == 1);
565: $r->print("<th>".&mt("Usage Statistics")." <br />(".
566: &mt("Courses/Network Hits").") ".&mt('updated periodically')."</th>\n")
567: if ($hash{'display_attrs_8'} == 1);
568: $r->print("<th>".&mt("Source Available")."</th>\n")
569: if ($hash{'display_attrs_10'} == 1);
570: $r->print("<th>".&mt("Linked/Related Resources")."</th>\n")
571: if ($hash{'display_attrs_11'} == 1);
572: $r->print("<th>".&mt("Resource")."</th>\n")
573: if ($hash{'display_attrs_7'} == 1);
574: $r->print("<th>".&mt("Subject")."</th>\n")
575: if ($hash{'display_attrs_12'} == 1);
576:
577: $r->print(&Apache::loncommon::end_data_table_header_row());
578:
579:
580:
581: # ----------------- read in what directories have previously been set to "open"
582: foreach (keys %hash) {
583: if ($_ =~ /^diropen_status_/) {
584: my $key = $_;
585: $key =~ s/^diropen_status_//;
586: $dirs{$key} = $hash{$_};
587: }
588: }
589:
590: if ($env{'form.openuri'}) { # take care of review and refresh options
591: my $uri=$env{'form.openuri'};
592: if (exists($hash{'diropen_status_'.$uri})) {
593: my $cursta = $hash{'diropen_status_'.$uri};
594: $dirs{$uri} = 'open';
595: $hash{'diropen_status_'.$uri} = 'open';
596: if ($cursta eq 'open') {
597: $dirs{$uri} = 'closed';
598: $hash{'diropen_status_'.$uri} = 'closed';
599: }
600: } else {
601: $hash{'diropen_status_'.$uri} = 'open';
602: $dirs{$uri} = 'open';
603: }
604: }
605:
606: my $toplevel;
607: my $indent = 0;
608: $uri = $uri.'/' if $uri !~ /.*\/$/;
609:
610: if ($env{'form.dirPointer'} ne 'on') {
611: $hash{'top.level'} = $uri;
612: $toplevel = $uri;
613: } else {
614: $toplevel = $hash{'top.level'};
615: }
616:
617: # -------------------------------- if not at top level, provide an uplink arrow
618: if ($toplevel ne '/res/'){
619: my (@uri_com) = split(/\//,$uri);
620: pop @uri_com;
621: my $upone = join('/',@uri_com);
622: my @list = qw (0);
623: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
624: $indent = 1;
625: }
626:
627: # -------- recursively go through all the directories and output as appropriate
628: &scanDir ($r,$toplevel,$indent,\%hash);
629:
630: # -------------------------------------------------------------- end the tables
631: $r->print(&Apache::loncommon::end_data_table());
632:
633: # ---------------------------- embed hidden information useful for group import
634: $r->print("<form name='fnum' action=''>");
635: $r->print("<input type='hidden' name='fnum' value='$fnum' /></form>");
636:
637: # --------------------------------------------------- end the output and return
638: $r->print(&Apache::loncommon::end_page()."\n");
639: }
640: if(! $c->aborted()) {
641: # write back into the temporary file
642: my %dbfile;
643: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
644: while (my($key,$value) = each(%hash)) {
645: $dbfile{$key}=$value;
646: }
647: untie(%dbfile);
648: }
649: }
650:
651: return OK;
652: }
653:
654: # ----------------------------------------------- recursive scan of a directory
655: sub scanDir {
656: my ($r,$startdir,$indent,$hashref)=@_;
657: my $c = $r->connection();
658: my ($compuri,$curdir);
659: my $dirptr=16384;
660: my $obs;
661: $indent++;
662: my %dupdirs = %dirs;
663: my @list=&get_list($r,$startdir);
664: foreach my $line (@list) {
665: return if ($c->aborted());
666: #This is a kludge, sorry aboot this
667: my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
668: next if($strip =~ /.*\.meta$/ | $obs eq '1');
669: my (@fileparts) = split(/\./,$strip);
670: if ($hash{'display_attrs_9'} != 1) {
671: # if not all versions to be shown
672: if (scalar(@fileparts) >= 3) {
673: my $fext = pop @fileparts;
674: my $ov = pop @fileparts;
675: my $fname = join ('.',@fileparts,$fext);
676: next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
677: }
678: }
679:
680: if ($dom eq 'domain') {
681: # dom list has full path /res/<domain name>/ already
682: $curdir='';
683: $compuri = (split(/\&/,$line))[0];
684: } else {
685: # user, dir & file have name only, i.e., w/o path
686: $compuri = join('',$startdir,$strip,'/');
687: $curdir = $startdir;
688: }
689: my $diropen = 'closed';
690: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
691: while (my ($key,$val)= each %dupdirs) {
692: if ($key eq $compuri and $val eq "open") {
693: $diropen = "opened";
694: delete($dupdirs{$key});
695: delete($dirs{$key});
696: }
697: }
698: }
699: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
700: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
701: }
702: $indent--;
703: }
704:
705: # --------------- get complete matched list based on the uri (returns an array)
706: sub get_list {
707: my ($r,$uri)=@_;
708: my @list=();
709: (my $luri = $uri) =~ s/\//_/g;
710: if ($env{'form.updatedisplay'}) {
711: foreach (keys %hash) {
712: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
713: delete $hash{$_} if ($_ =~ /^dirlist_timestamp_files_/);
714: }
715: }
716:
717: if (defined($hash{'dirlist_files_'.$luri}) &&
718: $hash{'dirlist_timestamp_files_'.$luri}+600 > (time)) {
719: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
720: } elsif ($uri=~/\.(page|sequence)\/$/) {
721: # is a page or a sequence
722: $uri=~s/\/$//;
723: $uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
724: $uri=~s/\/+/\//g;
725: foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
726: my @ratpart=split(/\:/,$_);
727: push(@list,&LONCAPA::map::qtescape($ratpart[1]));
728: }
729: $hash{'dirlist_files_'.$luri} = join("\n",@list);
730: } else {
731: # is really a directory
732: @list = &Apache::lonnet::dirlist($uri);
733: $hash{'dirlist_files_'.$luri} = join("\n",@list);
734: $hash{'dirlist_timestamp_files_'.$luri} = time;
735: }
736: return @list=&match_ext($r,@list);
737: }
738:
739: sub dynmetaread {
740: my $uri=shift;
741: if (($hash{'display_attrs_8'}==1) || ($hash{'display_attrs_11'}==1)) {
742: # We don't want the filename
743: $uri=~s/\/[^\/]+$//;
744: # Did we already see this?
745: my $builddir=$uri;
746: while ($builddir) {
747: if ($dynread{$builddir}) {
748: return 0;
749: }
750: $builddir=~s/\/[^\/]+$//;
751: }
752: # Actually get the data
753: %dynhash=
754: (%dynhash,&Apache::lonmeta::get_dynamic_metadata_from_sql($uri.'/'));
755: # Remember that we got it
756: $dynread{$uri}=1;
757: }
758: }
759:
760: sub initdebug {
761: my $start_page=
762: &Apache::loncommon::start_page('Debug',undef,
763: {'only_body' => 1,});
764: $start_page =~ s/\n/ /g;
765: return <<ENDJS;
766: <script type="text/javascript">
767: var debugging = true;
768: if (debugging) {
769: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
770: }
771:
772: function output(text) {
773: if (debugging) {
774: debuggingWindow.document.writeln(text);
775: }
776: }
777: output('$start_page<pre>');
778: </script>
779: ENDJS
780: }
781:
782: sub writedebug {
783: my ($text) = @_;
784: return "<script type=\"text/javascript\">output('$text');</script>";
785: }
786:
787: # -------------------- filters out files based on extensions (returns an array)
788: sub match_ext {
789: my ($r,@packlist)=@_;
790: my @trimlist;
791: my $nextline;
792: my @fileext;
793: my $dirptr=16384;
794:
795: foreach my $line (@packlist) {
796: chomp $line;
797: $line =~ s/^\/home\/httpd\/html//;
798: my @unpackline = split (/\&/,$line);
799: next if ($unpackline[0] eq '.');
800: next if ($unpackline[0] eq '..');
801: my @filecom = split (/\./,$unpackline[0]);
802: my $fext = pop(@filecom);
803: my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
804: if ($fnptr == 0 and $unpackline[3] ne "") {
805: my $embstyle = &Apache::loncommon::fileembstyle($fext);
806: push @trimlist,$line if (defined($embstyle) &&
807: ($embstyle ne 'hdn' or $fext eq 'meta'));
808: } else {
809: push @trimlist,$line;
810: }
811: }
812: @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
813: return @trimlist;
814: }
815:
816: # ------------------------------- displays one line in appropriate table format
817: sub display_line {
818: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
819: my (@pathfn, $fndir);
820: # there could be relative paths (files actually belonging into this directory)
821: # or absolute paths (for example, from sequences)
822: my $absolute;
823: my $pathprefix;
824: if ($line=~m|^/res/| && $startdir ne '') {
825: $absolute=1;
826: $pathprefix='';
827: } else {
828: $absolute=0;
829: $pathprefix=$startdir;
830: }
831: my $dirptr=16384;
832: #SB my $fileclr="#ffffe6";
833: my $iconpath= $r->dir_config('lonIconsURL') . '/';
834:
835: my @filecom = split (/\&/,$line);
836: my @pathcom = split (/\//,$filecom[0]);
837: my $listname = $pathcom[scalar(@pathcom)-1];
838: my $fnptr = $filecom[3]&$dirptr;
839: my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
840: $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
841:
842: my $tabtag='</td>';
843: my $i=0;
844: while ($i<=12) {
845: $tabtag=join('',$tabtag,"<td> </td>")
846: if ($i != 9 &&
847: $hash{'display_attrs_'.$i} == 1);
848: $i++;
849: }
850: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
851:
852: # display uplink arrow
853: if ($filecom[1] eq 'viewOneUp') {
854: my $updir=$startdir;
855: # -------------- Filter out sequence containment in crumbs and "recent folders"
856: $updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
857: $updir=~s/\/+/\//g;
858:
859: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
860: $r->print(&Apache::loncommon::start_data_table_row()); # valign="$valign" ?!?
861: $r->print($extrafield);
862: $r->print("<td>\n");
863: $r->print ('<form method="post" name="dirpathUP" action="'.$updir.
864: '/" '.
865: 'onSubmit="return rep_dirpath(\'UP\','.
866: 'document.forms.fileattr.acts.value)" '.
867: 'enctype="application/x-www-form-urlencoded"'.
868: '>'."\n");
869: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
870: $r->print ('<input type=hidden name=openuri value="'.
871: $startdir.'" />'."\n");
872: $r->print ('<input type="hidden" name="acts" value="" />'."\n");
873: $r->print ('<input src="'.$iconpath.'arrow_up.gif"');
874: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
875: "\n");
876: $r->print(&mt("Up")."</form>$tabtag");
877: $r->print(&Apache::loncommon::end_data_table_row());
878: return OK;
879: }
880: # Do we have permission to look at this?
881:
882: if($filecom[15] ne '1') { return OK if (!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])); }
883:
884: # make absolute links appear on different background
885: #SB if ($absolute) { $fileclr='#ccdd99'; }
886:
887: # display domain
888: if ($filecom[1] eq 'domain') {
889: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n")
890: if ($env{'form.dirPointer'} eq "on");
891: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
892: $r->print(&Apache::loncommon::start_data_table_row()); # valign="$valign" ?!?"
893: $r->print($extrafield);
894: $r->print("<td>");
895: &begin_form ($r,$filecom[0]);
896: my $anchor = $filecom[0];
897: $anchor =~ s/\W//g;
898: $r->print ('<a name="'.$anchor.'"></a>');
899: $r->print ('<input type="hidden" name="acts" value="" />');
900: $r->print ('<input src="'.$iconpath.'folder_pointer_'.
901: $diropen.'.gif"');
902: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
903: "\n");
904: my $quotable_filecom = &Apache::loncommon::escape_single($filecom[0]);
905: $r->print ('<a href="javascript:gothere(\''.$quotable_filecom.
906: '\')"><img alt="" src="'.$iconpath.'server.gif"');
907: $r->print (' class="LC_icon" /></a>'."\n");
908: $r->print (&mt("Domain")." - $listname ");
909: if (&Apache::lonnet::domain($listname,'description')) {
910: $r->print("(".&Apache::lonnet::domain($listname,'description').
911: ")");
912: }
913: $r->print("</form>$tabtag");
914: $r->print(&Apache::loncommon::end_data_table_row());
915: return OK;
916:
917: # display user directory
918: }
919: if ($filecom[1] eq 'user') {
920: # $r->print("<tr valign=$valign bgcolor=\"$fileclr\">$extrafield");
921: my $curdir = $startdir.$filecom[0].'/';
922: my $anchor = $curdir;
923: $anchor =~ s/\W//g;
924: #SB $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
925: $r->print(&Apache::loncommon::start_data_table_row()
926: .$extrafield.'<td valign="'.$valign.'">');
927: &begin_form ($r,$curdir);
928: $r->print ('<a name="'.$anchor.'"></a><img alt="" src="'.$iconpath.
929: 'whitespace1.gif" class="LC_icon" />'."\n");
930: $r->print ('<input type="hidden" name="acts" value="" />');
931: $r->print ('<input src="'.$iconpath.'folder_pointer_'.$diropen.
932: '.gif"');
933: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
934: "\n");
935: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
936: $r->print ('<a href="javascript:gothere(\''.$quotable_curdir
937: .'\')"><img alt="'.$msg.'" src="'.
938: $iconpath.'quill.gif" class="LC_indexer_icon" /></a>');
939: my $domain=(split(m|/|,$startdir))[2];
940: my $plainname=&Apache::loncommon::plainname($listname,$domain);
941: $r->print ($listname);
942: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
943: $r->print('</form>'.$tabtag);
944: $r->print(&Apache::loncommon::end_data_table_row());
945: return OK;
946: }
947:
948: # display file
949: if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
950: my $title;
951: my $filelink = $pathprefix.$filecom[0];
952: if ($hash{'display_attrs_0'} == 1) {
953: $title = &Apache::lonnet::gettitle($filelink);
954: }
955: my @file_ext = split (/\./,$listname);
956: my $curfext = $file_ext[-1];
957: if (@Omit) {
958: foreach (@Omit) { return OK if (lc($curfext) eq $_); }
959: }
960: if (@Only) {
961: my $skip = 1;
962: foreach (@Only) { $skip = 0 if (lc($curfext) eq $_); }
963: return OK if ($skip > 0);
964: }
965: # Set the icon for the file
966: my $iconname = &Apache::loncommon::icon($listname);
967: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">);
968: $r->print(&Apache::loncommon::start_data_table_row()); #SB valign="$valign" ?!?
969: $r->print('<td valign="top"><span class="LC_nobreak">');
970:
971: if ($env{'form.catalogmode'} eq 'interactive') {
972: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
973: $r->print("<a href=\"javascript:select_data(\'",
974: $quotable_filelink,"')\">");
975: $r->print("<img alt=\"\" src='",$iconpath,"select.gif' class='LC_icon' /></a>".
976: "\n");
977: $r->print('</span></td><td valign="top"><span class="LC_nobreak">');
978: } elsif ($env{'form.catalogmode'} eq 'import') {
979: $r->print("<form name='form$fnum' action=''>\n");
980: $r->print("<input type='checkbox' name='filelink"."' ".
981: "value='$filelink' onClick='".
982: "javascript:queue(\"form$fnum\")' ");
983: if ($hash{'store_'.$filelink}) {
984: $r->print("checked");
985: }
986: $r->print(" />\n");
987: $r->print('</form></span></td><td valign="top"><span class="LC_nobreak">');
988: $hash{"pre_${fnum}_link"}=$filelink;
989: $hash{"pre_${fnum}_title"}=$title;
990: if (!$hash{"pre_${fnum}_title"}) {
991: $hash{"pre_${fnum}_title"} = 'Not_retrieved';
992: }
993: $fnum++;
994: }
995: # Form to open or close sequences
996: if ($filelink=~/\.(page|sequence)$/) {
997: my $curdir = $startdir.$filecom[0].'/';
998: &begin_form($r,$curdir);
999: $indent--;
1000: }
1001: # General indentation
1002: if ($indent > 0 and $indent < 12) {
1003: $r->print("<img alt=\"\" src='",$iconpath,"whitespace",$indent,
1004: ".gif' class='LC_icon' />\n");
1005: } elsif ($indent >0) {
1006: my $ten = int($indent/10.);
1007: my $rem = $indent%10.0;
1008: my $count = 0;
1009: while ($count < $ten) {
1010: $r->print("<img alt=\"\" src=".$iconpath.
1011: "whitespace10.gif class='LC_icon' />\n");
1012: $count++;
1013: }
1014: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
1015: ".gif class='LC_icon' />\n") if $rem > 0;
1016: }
1017: # Sequence open/close icon
1018: if ($filelink=~/\.(page|sequence)$/) {
1019: my $curdir = $startdir.$filecom[0].'/';
1020: my $anchor = $curdir;
1021: $anchor =~ s/\W//g;
1022: $r->print ('<input type="hidden" name="acts" value="" />');
1023: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
1024: 'folder_pointer_'.$diropen.'.gif"');
1025: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
1026: "\n");
1027: }
1028: # Filetype icons
1029: $r->print("<img alt=\"\" src='$iconname' class='LC_icon' />\n");
1030: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
1031:
1032: $r->print (" <a href=\"javascript:openWindow('".$quotable_filelink.
1033: "?inhibitmenu=yes','previewfile','450','500','no','yes','yes');\"".
1034: " target=\"_self\">$listname</a> ");
1035: $quotable_filelink = &Apache::loncommon::escape_single($filelink.'.meta');
1036: &Apache::loncommon::inhibit_menu_check(\$quotable_filelink);
1037: $r->print (" (<a href=\"javascript:openWindow('".$quotable_filelink.
1038: "?inhibitmenu=yes','metadatafile','500','550','no','yes','no');\" ".
1039: " target=\"_self\">".&mt('metadata')."</a>) ");
1040: # Close form to open/close sequence
1041: if ($filelink=~/\.(page|sequence)$/) {
1042: $r->print('</form>');
1043: }
1044: $r->print("</span></td>\n");
1045: if ($hash{'display_attrs_0'} == 1) {
1046: $r->print('<td> '.($title eq '' ? ' ' : $title).
1047: ' </td>'."\n");
1048: }
1049: $r->print('<td align="right"> ',
1050: $filecom[8]," </td>\n")
1051: if $hash{'display_attrs_1'} == 1;
1052: $r->print('<td> '.
1053: (&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
1054: if $hash{'display_attrs_2'} == 1;
1055: $r->print('<td> '.
1056: (&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
1057: if $hash{'display_attrs_3'} == 1;
1058:
1059: if ($hash{'display_attrs_4'} == 1) {
1060: my $author = &Apache::lonnet::metadata($filelink,'author');
1061: $r->print('<td> '.($author eq '' ? ' ' : $author).
1062: " </td>\n");
1063: }
1064: if ($hash{'display_attrs_5'} == 1) {
1065: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1066: # $keywords = ' ' if (!$keywords);
1067: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1068: " </td>\n");
1069: }
1070:
1071: if ($hash{'display_attrs_6'} == 1) {
1072: my $lang = &Apache::lonnet::metadata($filelink,'language');
1073: $lang = &Apache::loncommon::languagedescription($lang);
1074: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1075: " </td>\n");
1076: }
1077: if ($hash{'display_attrs_8'} == 1) {
1078: # statistics
1079: &dynmetaread($filelink);
1080: $r->print("<td>");
1081: &dynmetaprint($r,$filelink,'count');
1082: &dynmetaprint($r,$filelink,'course');
1083: &dynmetaprint($r,$filelink,'stdno');
1084: &dynmetaprint($r,$filelink,'avetries');
1085: &dynmetaprint($r,$filelink,'difficulty');
1086: &dynmetaprint($r,$filelink,'disc');
1087: &dynmetaprint($r,$filelink,'clear');
1088: &dynmetaprint($r,$filelink,'technical');
1089: &dynmetaprint($r,$filelink,'correct');
1090: &dynmetaprint($r,$filelink,'helpful');
1091: &dynmetaprint($r,$filelink,'depth');
1092: $r->print(" </td>\n");
1093:
1094: }
1095: if ($hash{'display_attrs_10'} == 1) {
1096: my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
1097: if($source eq 'open') {
1098: my $sourcelink = &Apache::lonsource::make_link($filelink,$listname);
1099: my $quotable_sourcelink = &Apache::loncommon::escape_single($sourcelink);
1100: &Apache::loncommon::inhibit_menu_check(\$quotable_sourcelink);
1101: $r->print('<td>'."<a href=\"javascript:openWindow('"
1102: .$quotable_sourcelink.
1103: "', 'previewsource', '700', '700', 'no', 'yes','yes');\"".
1104: " target=\"_self\">".&mt('Source Code')."</a> "."</td>\n");
1105: } else { #A cuddled else. :P
1106: $r->print("<td> </td>\n");
1107: }
1108: }
1109: if ($hash{'display_attrs_11'} == 1) {
1110: # links
1111: &dynmetaread($filelink);
1112: $r->print('<td>');
1113: &coursecontext($r,$filelink);
1114: &dynmetaprint($r,$filelink,'goto_list');
1115: &dynmetaprint($r,$filelink,'comefrom_list');
1116: &dynmetaprint($r,$filelink,'sequsage_list');
1117: &dynmetaprint($r,$filelink,'dependencies');
1118: &dynmetaprint($r,$filelink,'course_list');
1119: $r->print('</td>');
1120: }
1121:
1122:
1123:
1124: if ($hash{'display_attrs_7'} == 1) {
1125: # Show resource
1126: my $output=&showpreview($filelink);
1127: $r->print('<td> '.($output eq '' ? ' ':$output).
1128: " </td>\n");
1129: }
1130:
1131: if ($hash{'display_attrs_12'} == 1) {
1132: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1133: # $keywords = ' ' if (!$keywords);
1134: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1135: " </td>\n");
1136: }
1137:
1138: $r->print(&Apache::loncommon::end_data_table_row());
1139: }
1140:
1141:
1142:
1143: # -- display directory
1144: if ($fnptr == $dirptr) {
1145: my $curdir = $startdir.$filecom[0].'/';
1146: my $anchor = $curdir;
1147: $anchor =~ s/\W//g;
1148: #SB $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
1149: $r->print(&Apache::loncommon::start_data_table_row()); # SB: bgcolor suggestion: darkgrey ("LC_info_row"?!?)
1150: # $r->print('<tr class="LC_info_row">');
1151: $r->print($extrafield.'<td valign="'.$valign.'">');
1152: &begin_form ($r,$curdir);
1153: my $indentm1 = $indent-1;
1154: if ($indentm1 < 12 and $indentm1 > 0) {
1155: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$indentm1,
1156: ".gif class='LC_icon' />\n");
1157: } else {
1158: my $ten = int($indentm1/10.);
1159: my $rem = $indentm1%10.0;
1160: my $count = 0;
1161: while ($count < $ten) {
1162: $r->print ("<img alt=\"\" src=",$iconpath
1163: ,"whitespace10.gif class='LC_icon' />\n");
1164: $count++;
1165: }
1166: $r->print ("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
1167: ".gif class='LC_icon' />\n") if $rem > 0;
1168: }
1169: $r->print ('<input type="hidden" name="acts" value="" />');
1170: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
1171: 'folder_pointer_'.$diropen.'.gif"');
1172: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
1173: "\n");
1174: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
1175: $r->print ('<a href="javascript:gothere(\''
1176: .$quotable_curdir.'\')">'
1177: .'<img alt="'.&mt('Open Folder').'"src="'.
1178: $iconpath.'folder_'.$diropen.'.gif" class="LC_icon" /></a>'.
1179: "\n");
1180: $r->print ("$listname</form></td>\n");
1181: # Attributes
1182: my $filelink = $startdir.$filecom[0].'/default';
1183:
1184: if ($hash{'display_attrs_0'} == 1) {
1185: my $title = &Apache::lonnet::gettitle($filelink);
1186: $r->print('<td> '.($title eq '' ? ' ' : $title).
1187: ' </td>'."\n");
1188: }
1189: $r->print('<td align="right"> ',
1190: $filecom[8]," </td>\n")
1191: if $hash{'display_attrs_1'} == 1;
1192: $r->print('<td> '.
1193: (&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
1194: if $hash{'display_attrs_2'} == 1;
1195: $r->print('<td> '.
1196: (&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
1197: if $hash{'display_attrs_3'} == 1;
1198:
1199: if ($hash{'display_attrs_4'} == 1) {
1200: my $author = &Apache::lonnet::metadata($filelink,'author');
1201: $r->print('<td> '.($author eq '' ? ' ' : $author).
1202: " </td>\n");
1203: }
1204: if ($hash{'display_attrs_5'} == 1) {
1205: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1206: # $keywords = ' ' if (!$keywords);
1207: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1208: " </td>\n");
1209: }
1210: if ($hash{'display_attrs_6'} == 1) {
1211: my $lang = &Apache::lonnet::metadata($filelink,'language');
1212: $lang = &Apache::loncommon::languagedescription($lang);
1213: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1214: " </td>\n");
1215: }
1216:
1217: if ($hash{'display_attrs_8'} == 1) {
1218: $r->print('<td> </td>');
1219: }
1220: if ($hash{'display_attrs_10'} == 1) {
1221: $r->print('<td> </td>');
1222: }
1223: if ($hash{'display_attrs_7'} == 1) {
1224: $r->print('<td> </td>');
1225: }
1226: if ($hash{'display_attrs_11'} == 1) {
1227: $r->print('<td> </td>');
1228: }
1229: if ($hash{'display_attrs_12'} == 1) {
1230: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1231: # $keywords = ' ' if (!$keywords);
1232: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1233: " </td>\n");
1234: }
1235:
1236: $r->print(&Apache::loncommon::end_data_table_row());
1237: }
1238:
1239: }
1240:
1241: sub coursecontext {
1242: my ($r,$filelink)=@_;
1243: my $filesymb=&Apache::lonnet::symbread($filelink);
1244: if ($filesymb) {
1245: my ($map,$index,$resource)=&Apache::lonnet::decode_symb($filesymb);
1246: $r->print(&mt('Already in this course:<br />[_1] in folder/map [_2].<br />',
1247: &Apache::lonnet::gettitle($resource),
1248: &Apache::lonnet::gettitle($map)));
1249: }
1250: }
1251:
1252: sub showpreview {
1253: my ($filelink)=@_;
1254: if ($filelink=~m-^(/ext/|http://)-) {
1255: return &mt('External Resource, preview not enabled');
1256: }
1257: my ($curfext)=($filelink=~/\.(\w+)$/);
1258: my $output='';
1259: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
1260: if ($embstyle eq 'ssi') {
1261: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
1262: '.tmp';
1263: if ((!$env{'form.updatedisplay'}) &&
1264: (-e $cache)) {
1265: open(FH,$cache);
1266: $output=join("\n",<FH>);
1267: close(FH);
1268: } else {
1269: # In update display mode, remove old cache. This is done to retroactively
1270: # clean up course context renderings.
1271: if (-e $cache) {
1272: unlink($cache);
1273: }
1274: $output=&Apache::lonnet::ssi_body($filelink);
1275: # Is access denied? Don't render, don't store
1276: if ($output=~/LONCAPAACCESSCONTROLERRORSCREEN/s) {
1277: $output='';
1278: # Was this rendered in course content? Don't store
1279: } elsif (!&Apache::lonnet::symbread($filelink)) {
1280: open(FH,">$cache");
1281: print FH $output;
1282: close(FH);
1283: }
1284: }
1285: $output='<font size="-2">'.$output.'</font>';
1286: } elsif ($embstyle eq 'img') {
1287: $output='<img alt="'.&mt('Preview').'" src="'.$filelink.'" />';
1288: } elsif ($filelink=~m{^/res/($match_domain)/($match_username)/}) {
1289: $output='<img alt="'.&mt('Preview').'" src="http://'.
1290: &Apache::lonnet::hostname(&Apache::lonnet::homeserver($2,$1)).
1291: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1292: }
1293: return $output;
1294: }
1295:
1296: sub dynmetaprint {
1297: my ($r,$filelink,$item)=@_;
1298: if ($dynhash{$filelink}->{$item}) {
1299: $r->print("\n<br />".$fieldnames{$item}.': '.
1300: &Apache::lonmeta::prettyprint($item,
1301: $dynhash{$filelink}->{$item},
1302: (($env{'form.catalogmode'} ne 'import')?'preview':''),
1303: '',
1304: (($env{'form.catalogmode'} eq 'import')?'document.forms.fileattr':''),1));
1305: }
1306: }
1307:
1308: # ------------------- prints the beginning of a form for directory or file link
1309: sub begin_form {
1310: my ($r,$uri) = @_;
1311: my $anchor = $uri;
1312: $anchor =~ s/\W//g;
1313: $uri=&Apache::loncommon::escape_single($uri);
1314: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1315: '#'.$anchor.
1316: '" onSubmit="return rep_dirpath(\''.$dnum.'\''.
1317: ',document.forms.fileattr.acts.value)" '.
1318: 'enctype="application/x-www-form-urlencoded">'."\n");
1319: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'" />'.
1320: "\n");
1321: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n");
1322: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
1323: $dnum++;
1324: }
1325:
1326: # --------- settings whenever the user causes the indexer window to be launched
1327: sub start_fresh_session {
1328: my ($hash) = @_;
1329: delete $hash->{'form.catalogmode'};
1330: delete $hash->{'form.mode'};
1331: delete $hash->{'form.form'};
1332: delete $hash->{'form.element'};
1333: delete $hash->{'form.omit'};
1334: delete $hash->{'form.only'};
1335: foreach (keys %{$hash}) {
1336: delete $hash->{$_} if (/^(pre_|store)/);
1337: }
1338: }
1339:
1340: # ------------------------------------------------------------------- setvalues
1341: sub setvalues {
1342: # setvalues is used in registerurl to synchronize the database
1343: # hash and environment hashes
1344: my ($H1,$h1key,$H2,$h2key) =@_;
1345: #
1346: if (exists $H2->{$h2key}) {
1347: $H1->{$h1key} = $H2->{$h2key};
1348: } elsif (exists $H1->{$h1key}) {
1349: $H2->{$h2key} = $H1->{$h1key};
1350: }
1351: }
1352:
1353: 1;
1354:
1355: sub cleanup {
1356: if (tied(%hash)){
1357: &Apache::lonnet::logthis('Cleanup indexer: hash');
1358: }
1359: return OK;
1360: }
1361:
1362:
1363:
1364:
1365:
1366: =head1 NAME
1367:
1368: Apache::lonindexer - mod_perl module for cross server filesystem browsing
1369:
1370: =head1 SYNOPSIS
1371:
1372: Invoked by /etc/httpd/conf/srm.conf:
1373:
1374: <LocationMatch "^/res.*/$">
1375: SetHandler perl-script
1376: PerlHandler Apache::lonindexer
1377: </LocationMatch>
1378:
1379: =head1 INTRODUCTION
1380:
1381: This module enables a scheme of browsing across a cross server.
1382:
1383: This is part of the LearningOnline Network with CAPA project
1384: described at http://www.lon-capa.org.
1385:
1386: =head1 BEGIN SUBROUTINE
1387:
1388: This routine is only run once after compilation.
1389:
1390: =over 4
1391:
1392: =item *
1393:
1394: Initializes %language hash table.
1395:
1396: =back
1397:
1398: =head1 HANDLER SUBROUTINE
1399:
1400: This routine is called by Apache and mod_perl.
1401:
1402: =over 4
1403:
1404: =item *
1405:
1406: read in machine configuration variables
1407:
1408: =item *
1409:
1410: see if called from an interactive mode
1411:
1412: =item *
1413:
1414: refresh environment with user database values (in %hash)
1415:
1416: =item *
1417:
1418: define extra fields and buttons in case of special mode
1419:
1420: =item *
1421:
1422: set catalogmodefunctions to have extra needed javascript functionality
1423:
1424: =item *
1425:
1426: print header
1427:
1428: =item *
1429:
1430: evaluate actions from previous page (both cumulatively and chronologically)
1431:
1432: =item *
1433:
1434: output title
1435:
1436: =item *
1437:
1438: get state of file attributes to be showing
1439:
1440: =item *
1441:
1442: output state of file attributes to be showing
1443:
1444: =item *
1445:
1446: output starting row to the indexed file/directory hierarchy
1447:
1448: =item *
1449:
1450: read in what directories have previously been set to "open"
1451:
1452: =item *
1453:
1454: if not at top level, provide an uplink arrow
1455:
1456: =item *
1457:
1458: recursively go through all the directories and output as appropriate
1459:
1460: =item *
1461:
1462: information useful for group import
1463:
1464: =item *
1465:
1466: end the tables
1467:
1468: =item *
1469:
1470: end the output and return
1471:
1472: =back
1473:
1474: =head1 OTHER SUBROUTINES
1475:
1476: =over 4
1477:
1478: =item *
1479:
1480: scanDir - recursive scan of a directory
1481:
1482: =item *
1483:
1484: get_list - get complete matched list based on the uri (returns an array)
1485:
1486: =item *
1487:
1488: match_ext - filters out files based on extensions (returns an array)
1489:
1490: =item *
1491:
1492: display_line - displays one line in appropriate table format
1493:
1494: =item *
1495:
1496: begin_form - prints the beginning of a form for directory or file link
1497:
1498: =item *
1499:
1500: start_fresh_session - settings whenever the user causes the indexer window
1501: to be launched
1502:
1503: =back
1504:
1505: =cut
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