1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.186 2009/02/03 15:58:11 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<=14; $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<=14; $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: 'nt' => 'Notes ',
449: 'ab' => 'Abstract ',
450: 'ln' => 'Language',
451: 'sa' => 'Source Available',
452: 'sr' => 'Show resource',
453: 'li' => 'Linked/Related Resources',
454: 'av' => 'All versions',
455: 'ud' => 'Update Display',
456: 'pr' => 'Problems',
457: 'gr' => 'Graphics',
458: 'at' => 'All types',
459: 'hd' => 'Display Options'
460: );
461: $r->print(<<END);
462: <fieldset>
463: <legend>$lt{'hd'}</legend>
464: <form method="post" name="fileattr" action="$uri"
465: enctype="application/x-www-form-urlencoded">
466: <label><input type="checkbox" name="attr9" value="1" $attrchk[9] onClick="this.form.submit();" /> $lt{'av'}</label>
467: <table border="0">
468: <tr>
469: <td><label><input type="checkbox" name="attr0" value="1" $attrchk[0] onClick="this.form.submit();" /> $lt{'ti'}</label></td>
470: <td><label><input type="checkbox" name="attr4" value="1" $attrchk[4] onClick="this.form.submit();" /> $lt{'au'}</label></td>
471: <td><label><input type="checkbox" name="attr5" value="1" $attrchk[5] onClick="this.form.submit();" /> $lt{'kw'}</label></td>
472: <td><label><input type="checkbox" name="attr6" value="1" $attrchk[6] onClick="this.form.submit();" /> $lt{'ln'}</label></td>
473: <td><label><input type="checkbox" name="attr13" value="1" $attrchk[13] onClick="this.form.submit();" /> $lt{'nt'}</label></td>
474: </tr>
475: <tr>
476: <td><label><input type="checkbox" name="attr1" value="1" $attrchk[1] onClick="this.form.submit();" /> $lt{'si'}</label></td>
477: <td><label><input type="checkbox" name="attr2" value="1" $attrchk[2] onClick="this.form.submit();" /> $lt{'la'}</label></td>
478: <td><label><input type="checkbox" name="attr3" value="1" $attrchk[3] onClick="this.form.submit();" /> $lt{'lm'}</label></td>
479: <td><label><input type="checkbox" name="attr10" value="1" $attrchk[10] onClick="this.form.submit();" /> $lt{'sa'}</label></td>
480: <td><label><input type="checkbox" name="attr14" value="1" $attrchk[14] onClick="this.form.submit();" /> $lt{'ab'}</label></td>
481: </tr>
482: <tr>
483: <td><label><input type="checkbox" name="attr8" value="1" $attrchk[8] onClick="this.form.submit();" /> $lt{'st'}</label></td>
484: <td><label><input type="checkbox" name="attr11" value="1" $attrchk[11] onClick="this.form.submit();" /> $lt{'li'}</label></td>
485: <td><label><input type="checkbox" name="attr7" value="1" $attrchk[7] onClick="this.form.submit();" /> $lt{'sr'}</label></td>
486: <td><label><input type="checkbox" name="attr12" value="1" $attrchk[12] onClick="this.form.submit();" /> $lt{'sb'}</label></td>
487: <td> </td>
488: </tr>
489: </table>
490: <input type="hidden" name="attrs" value="1" />
491: END
492: my @file_categories = &Apache::loncommon::filecategories();
493: my %select_file_categories;
494: my @select_form_order = ('');
495: $select_file_categories{''} = &mt('All file types');
496: foreach my $cat (@file_categories) {
497: my $types = join(",",&Apache::loncommon::filecategorytypes($cat));
498: $select_file_categories{$types} = $cat;
499: push(@select_form_order,$types);
500: }
501: $select_file_categories{'select_form_order'} = \@select_form_order;
502: my $type_element=
503: &Apache::loncommon::select_form($typeselect,'only',
504: %select_file_categories);
505: $type_element = '<label>'.&mt('File Type Displayed: [_1]',
506: $type_element).'</label>';
507: $r->print($type_element
508: .'</fieldset>');
509: $r->print(<<END);
510: <br />
511: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
512: <input type="hidden" name="acts" value="" />
513: $closebutton $groupimportbutton
514: END
515: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
516:
517: # -------------- Filter out sequence containment in crumbs and "recent folders"
518: my $storeuri=$uri;
519: $storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
520: $storeuri=~s/\/+/\//g;
521: # ---------------------------------------------------------------- Bread crumbs
522: $r->print(&Apache::lonhtmlcommon::crumbs($storeuri,'','',
523: (($env{'form.catalogmode'} eq 'import')?
524: 'document.forms.fileattr':'')).
525: &Apache::lonhtmlcommon::select_recent('residx','resrecent',
526: '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();'));
527: # -------------------------------------------------------- Resource Home Button
528: my $reshome=$env{'course.'.$env{'request.course.id'}.'.reshome'};
529: if ($reshome) {
530: $r->print("<font size='+2'><a href='");
531: if ($env{'form.catalogmode'} eq 'import') {
532: $r->print('javascript:document.forms.fileattr.action="'.&Apache::loncommon::inhibit_menu_check($reshome).'";document.forms.fileattr.submit();');
533: } else {
534: $r->print($reshome);
535: }
536: $r->print("'>".&mt('Home').'</a></font>');
537: }
538: $r->print('</form>');
539: # ------------------------------------------------------ Remember where we were
540: &Apache::loncommon::storeresurl($storeuri);
541: &Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
542: # -------------------------------------------------- Check All and Uncheck all
543: if ($env{'form.catalogmode'} eq 'import') {
544: $r->print('<br /><input type="button" value="'.&mt("Check All").'" id="checkallbutton" onClick="javascript:checkAll()" />');
545: $r->print('<input type="button" value="'.&mt("Uncheck All").'" id="uncheckallbutton" onClick="javascript:uncheckAll()" />');
546: }
547: # ----------------- output starting row to the indexed file/directory hierarchy
548: #$r->print(&initdebug());
549: #$r->print(&writedebug("Omit:@Omit")) if (@Omit);
550: #$r->print(&writedebug("Only:@Only")) if (@Only);
551: $r->print('<br /><br />');
552: $r->print(&Apache::loncommon::start_data_table()
553: .&Apache::loncommon::start_data_table_header_row());
554: $r->print("<th $colspan>".&mt('Name')."</th>\n");
555: $r->print("<th>".&mt('Title')."</th>\n")
556: if ($hash{'display_attrs_0'} == 1);
557: $r->print('<th align="right">'.&mt("Size")." (".&mt("bytes").") ".
558: "</th>\n") if ($hash{'display_attrs_1'} == 1);
559: $r->print("<th>".&mt("Last accessed")."</th>\n")
560: if ($hash{'display_attrs_2'} == 1);
561: $r->print("<th>".&mt("Last modified")."</th>\n")
562: if ($hash{'display_attrs_3'} == 1);
563: $r->print("<th>".&mt("Author(s)")."</th>\n")
564: if ($hash{'display_attrs_4'} == 1);
565: $r->print("<th>".&mt("Keywords")."</th>\n")
566: if ($hash{'display_attrs_5'} == 1);
567: $r->print("<th>".&mt("Language")."</th>\n")
568: if ($hash{'display_attrs_6'} == 1);
569: $r->print("<th>".&mt("Usage Statistics")." <br />(".
570: &mt("Courses/Network Hits").") ".&mt('updated periodically')."</th>\n")
571: if ($hash{'display_attrs_8'} == 1);
572: $r->print("<th>".&mt("Source Available")."</th>\n")
573: if ($hash{'display_attrs_10'} == 1);
574: $r->print("<th>".&mt("Linked/Related Resources")."</th>\n")
575: if ($hash{'display_attrs_11'} == 1);
576: $r->print("<th>".&mt("Resource")."</th>\n")
577: if ($hash{'display_attrs_7'} == 1);
578: $r->print("<th>".&mt("Subject")."</th>\n")
579: if ($hash{'display_attrs_12'} == 1);
580: $r->print("<th>".&mt("Notes")."</th>\n")
581: if ($hash{'display_attrs_13'} == 1);
582: $r->print("<th>".&mt("Abstract")."</th>\n")
583: if ($hash{'display_attrs_14'} == 1);
584:
585: $r->print(&Apache::loncommon::end_data_table_header_row());
586:
587:
588:
589: # ----------------- read in what directories have previously been set to "open"
590: foreach (keys %hash) {
591: if ($_ =~ /^diropen_status_/) {
592: my $key = $_;
593: $key =~ s/^diropen_status_//;
594: $dirs{$key} = $hash{$_};
595: }
596: }
597:
598: if ($env{'form.openuri'}) { # take care of review and refresh options
599: my $uri=$env{'form.openuri'};
600: if (exists($hash{'diropen_status_'.$uri})) {
601: my $cursta = $hash{'diropen_status_'.$uri};
602: $dirs{$uri} = 'open';
603: $hash{'diropen_status_'.$uri} = 'open';
604: if ($cursta eq 'open') {
605: $dirs{$uri} = 'closed';
606: $hash{'diropen_status_'.$uri} = 'closed';
607: }
608: } else {
609: $hash{'diropen_status_'.$uri} = 'open';
610: $dirs{$uri} = 'open';
611: }
612: }
613:
614: my $toplevel;
615: my $indent = 0;
616: $uri = $uri.'/' if $uri !~ /.*\/$/;
617:
618: if ($env{'form.dirPointer'} ne 'on') {
619: $hash{'top.level'} = $uri;
620: $toplevel = $uri;
621: } else {
622: $toplevel = $hash{'top.level'};
623: }
624:
625: # -------------------------------- if not at top level, provide an uplink arrow
626: if ($toplevel ne '/res/'){
627: my (@uri_com) = split(/\//,$uri);
628: pop @uri_com;
629: my $upone = join('/',@uri_com);
630: my @list = qw (0);
631: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
632: $indent = 1;
633: }
634:
635: # -------- recursively go through all the directories and output as appropriate
636: &scanDir ($r,$toplevel,$indent,\%hash);
637:
638: # -------------------------------------------------------------- end the tables
639: $r->print(&Apache::loncommon::end_data_table());
640:
641: # ---------------------------- embed hidden information useful for group import
642: $r->print("<form name='fnum' action=''>");
643: $r->print("<input type='hidden' name='fnum' value='$fnum' /></form>");
644:
645: # --------------------------------------------------- end the output and return
646: $r->print(&Apache::loncommon::end_page()."\n");
647: }
648: if(! $c->aborted()) {
649: # write back into the temporary file
650: my %dbfile;
651: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
652: while (my($key,$value) = each(%hash)) {
653: $dbfile{$key}=$value;
654: }
655: untie(%dbfile);
656: }
657: }
658:
659: return OK;
660: }
661:
662: # ----------------------------------------------- recursive scan of a directory
663: sub scanDir {
664: my ($r,$startdir,$indent,$hashref)=@_;
665: my $c = $r->connection();
666: my ($compuri,$curdir);
667: my $dirptr=16384;
668: my $obs;
669: $indent++;
670: my %dupdirs = %dirs;
671: my @list=&get_list($r,$startdir);
672: foreach my $line (@list) {
673: return if ($c->aborted());
674: #This is a kludge, sorry aboot this
675: my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
676: next if($strip =~ /.*\.meta$/ | $obs eq '1');
677: my (@fileparts) = split(/\./,$strip);
678: if ($hash{'display_attrs_9'} != 1) {
679: # if not all versions to be shown
680: if (scalar(@fileparts) >= 3) {
681: my $fext = pop @fileparts;
682: my $ov = pop @fileparts;
683: my $fname = join ('.',@fileparts,$fext);
684: next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
685: }
686: }
687:
688: if ($dom eq 'domain') {
689: # dom list has full path /res/<domain name>/ already
690: $curdir='';
691: $compuri = (split(/\&/,$line))[0];
692: } else {
693: # user, dir & file have name only, i.e., w/o path
694: $compuri = join('',$startdir,$strip,'/');
695: $curdir = $startdir;
696: }
697: my $diropen = 'closed';
698: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
699: while (my ($key,$val)= each %dupdirs) {
700: if ($key eq $compuri and $val eq "open") {
701: $diropen = "opened";
702: delete($dupdirs{$key});
703: delete($dirs{$key});
704: }
705: }
706: }
707: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
708: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
709: }
710: $indent--;
711: }
712:
713: # --------------- get complete matched list based on the uri (returns an array)
714: sub get_list {
715: my ($r,$uri)=@_;
716: my @list=();
717: (my $luri = $uri) =~ s/\//_/g;
718: if ($env{'form.updatedisplay'}) {
719: foreach (keys %hash) {
720: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
721: delete $hash{$_} if ($_ =~ /^dirlist_timestamp_files_/);
722: }
723: }
724:
725: if (defined($hash{'dirlist_files_'.$luri}) &&
726: $hash{'dirlist_timestamp_files_'.$luri}+600 > (time)) {
727: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
728: } elsif ($uri=~/\.(page|sequence)\/$/) {
729: # is a page or a sequence
730: $uri=~s/\/$//;
731: $uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
732: $uri=~s/\/+/\//g;
733: foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
734: my @ratpart=split(/\:/,$_);
735: push(@list,&LONCAPA::map::qtescape($ratpart[1]));
736: }
737: $hash{'dirlist_files_'.$luri} = join("\n",@list);
738: } else {
739: # is really a directory
740: @list = &Apache::lonnet::dirlist($uri);
741: $hash{'dirlist_files_'.$luri} = join("\n",@list);
742: $hash{'dirlist_timestamp_files_'.$luri} = time;
743: }
744: return @list=&match_ext($r,@list);
745: }
746:
747: sub dynmetaread {
748: my $uri=shift;
749: if (($hash{'display_attrs_8'}==1) || ($hash{'display_attrs_11'}==1)) {
750: # We don't want the filename
751: $uri=~s/\/[^\/]+$//;
752: # Did we already see this?
753: my $builddir=$uri;
754: while ($builddir) {
755: if ($dynread{$builddir}) {
756: return 0;
757: }
758: $builddir=~s/\/[^\/]+$//;
759: }
760: # Actually get the data
761: %dynhash=
762: (%dynhash,&Apache::lonmeta::get_dynamic_metadata_from_sql($uri.'/'));
763: # Remember that we got it
764: $dynread{$uri}=1;
765: }
766: }
767:
768: sub initdebug {
769: my $start_page=
770: &Apache::loncommon::start_page('Debug',undef,
771: {'only_body' => 1,});
772: $start_page =~ s/\n/ /g;
773: return <<ENDJS;
774: <script type="text/javascript">
775: var debugging = true;
776: if (debugging) {
777: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
778: }
779:
780: function output(text) {
781: if (debugging) {
782: debuggingWindow.document.writeln(text);
783: }
784: }
785: output('$start_page<pre>');
786: </script>
787: ENDJS
788: }
789:
790: sub writedebug {
791: my ($text) = @_;
792: return "<script type=\"text/javascript\">output('$text');</script>";
793: }
794:
795: # -------------------- filters out files based on extensions (returns an array)
796: sub match_ext {
797: my ($r,@packlist)=@_;
798: my @trimlist;
799: my $nextline;
800: my @fileext;
801: my $dirptr=16384;
802:
803: foreach my $line (@packlist) {
804: chomp $line;
805: $line =~ s/^\/home\/httpd\/html//;
806: my @unpackline = split (/\&/,$line);
807: next if ($unpackline[0] eq '.');
808: next if ($unpackline[0] eq '..');
809: my @filecom = split (/\./,$unpackline[0]);
810: my $fext = pop(@filecom);
811: my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
812: if ($fnptr == 0 and $unpackline[3] ne "") {
813: my $embstyle = &Apache::loncommon::fileembstyle($fext);
814: push @trimlist,$line if (defined($embstyle) &&
815: ($embstyle ne 'hdn' or $fext eq 'meta'));
816: } else {
817: push @trimlist,$line;
818: }
819: }
820: @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
821: return @trimlist;
822: }
823:
824: # ------------------------------- displays one line in appropriate table format
825: sub display_line {
826: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
827: my (@pathfn, $fndir);
828: # there could be relative paths (files actually belonging into this directory)
829: # or absolute paths (for example, from sequences)
830: my $absolute;
831: my $pathprefix;
832: if ($line=~m|^/res/| && $startdir ne '') {
833: $absolute=1;
834: $pathprefix='';
835: } else {
836: $absolute=0;
837: $pathprefix=$startdir;
838: }
839: my $dirptr=16384;
840: #SB my $fileclr="#ffffe6";
841: my $iconpath= $r->dir_config('lonIconsURL') . '/';
842:
843: my @filecom = split (/\&/,$line);
844: my @pathcom = split (/\//,$filecom[0]);
845: my $listname = $pathcom[scalar(@pathcom)-1];
846: my $fnptr = $filecom[3]&$dirptr;
847: my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
848: $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
849:
850: my $tabtag='</td>';
851: my $i=0;
852: while ($i<=14) {
853: $tabtag=join('',$tabtag,"<td> </td>")
854: if ($i != 9 &&
855: $hash{'display_attrs_'.$i} == 1);
856: $i++;
857: }
858: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
859:
860: # display uplink arrow
861: if ($filecom[1] eq 'viewOneUp') {
862: my $updir=$startdir;
863: # -------------- Filter out sequence containment in crumbs and "recent folders"
864: $updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
865: $updir=~s/\/+/\//g;
866:
867: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
868: $r->print(&Apache::loncommon::start_data_table_row()); # valign="$valign" ?!?
869: $r->print($extrafield);
870: $r->print("<td>\n");
871: $r->print ('<form method="post" name="dirpathUP" action="'.$updir.
872: '/" '.
873: 'onSubmit="return rep_dirpath(\'UP\','.
874: 'document.forms.fileattr.acts.value)" '.
875: 'enctype="application/x-www-form-urlencoded"'.
876: '>'."\n");
877: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
878: $r->print ('<input type=hidden name=openuri value="'.
879: $startdir.'" />'."\n");
880: $r->print ('<input type="hidden" name="acts" value="" />'."\n");
881: $r->print ('<input src="'.$iconpath.'arrow_up.gif"');
882: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
883: "\n");
884: $r->print(&mt("Up")."</form>$tabtag");
885: $r->print(&Apache::loncommon::end_data_table_row());
886: return OK;
887: }
888: # Do we have permission to look at this?
889:
890: if($filecom[15] ne '1') { return OK if (!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])); }
891:
892: # make absolute links appear on different background
893: #SB if ($absolute) { $fileclr='#ccdd99'; }
894:
895: # display domain
896: if ($filecom[1] eq 'domain') {
897: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n")
898: if ($env{'form.dirPointer'} eq "on");
899: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
900: $r->print(&Apache::loncommon::start_data_table_row()); # valign="$valign" ?!?"
901: $r->print($extrafield);
902: $r->print("<td>");
903: &begin_form ($r,$filecom[0]);
904: my $anchor = $filecom[0];
905: $anchor =~ s/\W//g;
906: $r->print ('<a name="'.$anchor.'"></a>');
907: $r->print ('<input type="hidden" name="acts" value="" />');
908: $r->print ('<input src="'.$iconpath.'folder_pointer_'.
909: $diropen.'.gif"');
910: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
911: "\n");
912: my $quotable_filecom = &Apache::loncommon::escape_single($filecom[0]);
913: $r->print ('<a href="javascript:gothere(\''.$quotable_filecom.
914: '\')"><img alt="" src="'.$iconpath.'server.gif"');
915: $r->print (' class="LC_icon" /></a>'."\n");
916: $r->print (&mt("Domain")." - $listname ");
917: if (&Apache::lonnet::domain($listname,'description')) {
918: $r->print("(".&Apache::lonnet::domain($listname,'description').
919: ")");
920: }
921: $r->print("</form>$tabtag");
922: $r->print(&Apache::loncommon::end_data_table_row());
923: return OK;
924:
925: # display user directory
926: }
927: if ($filecom[1] eq 'user') {
928: # $r->print("<tr valign=$valign bgcolor=\"$fileclr\">$extrafield");
929: my $curdir = $startdir.$filecom[0].'/';
930: my $anchor = $curdir;
931: $anchor =~ s/\W//g;
932: #SB $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
933: $r->print(&Apache::loncommon::start_data_table_row()
934: .$extrafield.'<td valign="'.$valign.'">');
935: &begin_form ($r,$curdir);
936: $r->print ('<a name="'.$anchor.'"></a><img alt="" src="'.$iconpath.
937: 'whitespace1.gif" class="LC_icon" />'."\n");
938: $r->print ('<input type="hidden" name="acts" value="" />');
939: $r->print ('<input src="'.$iconpath.'folder_pointer_'.$diropen.
940: '.gif"');
941: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
942: "\n");
943: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
944: $r->print ('<a href="javascript:gothere(\''.$quotable_curdir
945: .'\')"><img alt="'.$msg.'" src="'.
946: $iconpath.'quill.gif" class="LC_indexer_icon" /></a>');
947: my $domain=(split(m|/|,$startdir))[2];
948: my $plainname=&Apache::loncommon::plainname($listname,$domain);
949: $r->print ($listname);
950: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
951: $r->print('</form>'.$tabtag);
952: $r->print(&Apache::loncommon::end_data_table_row());
953: return OK;
954: }
955:
956: # display file
957: if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
958: my $title;
959: my $filelink = $pathprefix.$filecom[0];
960: if ($hash{'display_attrs_0'} == 1) {
961: $title = &Apache::lonnet::gettitle($filelink);
962: }
963: my @file_ext = split (/\./,$listname);
964: my $curfext = $file_ext[-1];
965: if (@Omit) {
966: foreach (@Omit) { return OK if (lc($curfext) eq $_); }
967: }
968: if (@Only) {
969: my $skip = 1;
970: foreach (@Only) { $skip = 0 if (lc($curfext) eq $_); }
971: return OK if ($skip > 0);
972: }
973: # Set the icon for the file
974: my $iconname = &Apache::loncommon::icon($listname);
975: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">);
976: $r->print(&Apache::loncommon::start_data_table_row()); #SB valign="$valign" ?!?
977: $r->print('<td valign="top"><span class="LC_nobreak">');
978:
979: if ($env{'form.catalogmode'} eq 'interactive') {
980: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
981: $r->print("<a href=\"javascript:select_data(\'",
982: $quotable_filelink,"')\">");
983: $r->print("<img alt=\"\" src='",$iconpath,"select.gif' class='LC_icon' /></a>".
984: "\n");
985: $r->print('</span></td><td valign="top"><span class="LC_nobreak">');
986: } elsif ($env{'form.catalogmode'} eq 'import') {
987: $r->print("<form name='form$fnum' action=''>\n");
988: $r->print("<input type='checkbox' name='filelink"."' ".
989: "value='$filelink' onClick='".
990: "javascript:queue(\"form$fnum\")' ");
991: if ($hash{'store_'.$filelink}) {
992: $r->print("checked");
993: }
994: $r->print(" />\n");
995: $r->print('</form></span></td><td valign="top"><span class="LC_nobreak">');
996: $hash{"pre_${fnum}_link"}=$filelink;
997: $hash{"pre_${fnum}_title"}=$title;
998: if (!$hash{"pre_${fnum}_title"}) {
999: $hash{"pre_${fnum}_title"} = 'Not_retrieved';
1000: }
1001: $fnum++;
1002: }
1003: # Form to open or close sequences
1004: if ($filelink=~/\.(page|sequence)$/) {
1005: my $curdir = $startdir.$filecom[0].'/';
1006: &begin_form($r,$curdir);
1007: $indent--;
1008: }
1009: # General indentation
1010: if ($indent > 0 and $indent < 14) {
1011: $r->print("<img alt=\"\" src='",$iconpath,"whitespace",$indent,
1012: ".gif' class='LC_icon' />\n");
1013: } elsif ($indent >0) {
1014: my $ten = int($indent/10.);
1015: my $rem = $indent%10.0;
1016: my $count = 0;
1017: while ($count < $ten) {
1018: $r->print("<img alt=\"\" src=".$iconpath.
1019: "whitespace10.gif class='LC_icon' />\n");
1020: $count++;
1021: }
1022: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
1023: ".gif class='LC_icon' />\n") if $rem > 0;
1024: }
1025: # Sequence open/close icon
1026: if ($filelink=~/\.(page|sequence)$/) {
1027: my $curdir = $startdir.$filecom[0].'/';
1028: my $anchor = $curdir;
1029: $anchor =~ s/\W//g;
1030: $r->print ('<input type="hidden" name="acts" value="" />');
1031: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
1032: 'folder_pointer_'.$diropen.'.gif"');
1033: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
1034: "\n");
1035: }
1036: # Filetype icons
1037: $r->print("<img alt=\"\" src='$iconname' class='LC_icon' />\n");
1038: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
1039:
1040: $r->print (" <a href=\"javascript:openWindow('".$quotable_filelink.
1041: "?inhibitmenu=yes','previewfile','450','500','no','yes','yes');\"".
1042: " target=\"_self\">$listname</a> ");
1043: $quotable_filelink = &Apache::loncommon::escape_single($filelink.'.meta');
1044: &Apache::loncommon::inhibit_menu_check(\$quotable_filelink);
1045: $r->print (" (<a href=\"javascript:openWindow('".$quotable_filelink.
1046: "?inhibitmenu=yes','metadatafile','500','550','no','yes','no');\" ".
1047: " target=\"_self\">".&mt('metadata')."</a>) ");
1048: # Close form to open/close sequence
1049: if ($filelink=~/\.(page|sequence)$/) {
1050: $r->print('</form>');
1051: }
1052: $r->print("</span></td>\n");
1053: if ($hash{'display_attrs_0'} == 1) {
1054: $r->print('<td> '.($title eq '' ? ' ' : $title).
1055: ' </td>'."\n");
1056: }
1057: $r->print('<td align="right"> ',
1058: $filecom[8]," </td>\n")
1059: if $hash{'display_attrs_1'} == 1;
1060: $r->print('<td> '.
1061: (&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
1062: if $hash{'display_attrs_2'} == 1;
1063: $r->print('<td> '.
1064: (&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
1065: if $hash{'display_attrs_3'} == 1;
1066:
1067: if ($hash{'display_attrs_4'} == 1) {
1068: my $author = &Apache::lonnet::metadata($filelink,'author');
1069: $r->print('<td> '.($author eq '' ? ' ' : $author).
1070: " </td>\n");
1071: }
1072: if ($hash{'display_attrs_5'} == 1) {
1073: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1074: # $keywords = ' ' if (!$keywords);
1075: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1076: " </td>\n");
1077: }
1078:
1079: if ($hash{'display_attrs_6'} == 1) {
1080: my $lang = &Apache::lonnet::metadata($filelink,'language');
1081: $lang = &Apache::loncommon::languagedescription($lang);
1082: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1083: " </td>\n");
1084: }
1085: if ($hash{'display_attrs_8'} == 1) {
1086: # statistics
1087: &dynmetaread($filelink);
1088: $r->print("<td>");
1089: &dynmetaprint($r,$filelink,'count');
1090: &dynmetaprint($r,$filelink,'course');
1091: &dynmetaprint($r,$filelink,'stdno');
1092: &dynmetaprint($r,$filelink,'avetries');
1093: &dynmetaprint($r,$filelink,'difficulty');
1094: &dynmetaprint($r,$filelink,'disc');
1095: &dynmetaprint($r,$filelink,'clear');
1096: &dynmetaprint($r,$filelink,'technical');
1097: &dynmetaprint($r,$filelink,'correct');
1098: &dynmetaprint($r,$filelink,'helpful');
1099: &dynmetaprint($r,$filelink,'depth');
1100: $r->print(" </td>\n");
1101:
1102: }
1103: if ($hash{'display_attrs_10'} == 1) {
1104: my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
1105: if($source eq 'open') {
1106: my $sourcelink = &Apache::lonsource::make_link($filelink,$listname);
1107: my $quotable_sourcelink = &Apache::loncommon::escape_single($sourcelink);
1108: &Apache::loncommon::inhibit_menu_check(\$quotable_sourcelink);
1109: $r->print('<td>'."<a href=\"javascript:openWindow('"
1110: .$quotable_sourcelink.
1111: "', 'previewsource', '700', '700', 'no', 'yes','yes');\"".
1112: " target=\"_self\">".&mt('Source Code')."</a> "."</td>\n");
1113: } else { #A cuddled else. :P
1114: $r->print("<td> </td>\n");
1115: }
1116: }
1117: if ($hash{'display_attrs_11'} == 1) {
1118: # links
1119: &dynmetaread($filelink);
1120: $r->print('<td>');
1121: &coursecontext($r,$filelink);
1122: &dynmetaprint($r,$filelink,'goto_list');
1123: &dynmetaprint($r,$filelink,'comefrom_list');
1124: &dynmetaprint($r,$filelink,'sequsage_list');
1125: &dynmetaprint($r,$filelink,'dependencies');
1126: &dynmetaprint($r,$filelink,'course_list');
1127: $r->print('</td>');
1128: }
1129:
1130:
1131:
1132: if ($hash{'display_attrs_7'} == 1) {
1133: # Show resource
1134: my $output=&showpreview($filelink);
1135: $r->print('<td> '.($output eq '' ? ' ':$output).
1136: " </td>\n");
1137: }
1138:
1139: if ($hash{'display_attrs_12'} == 1) {
1140: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1141: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1142: " </td>\n");
1143: }
1144:
1145: if ($hash{'display_attrs_13'} == 1) {
1146: my $notes = &Apache::lonnet::metadata($filelink,'notes');
1147: $r->print('<td> '.($notes eq '' ? ' ' : $notes).
1148: " </td>\n");
1149: }
1150:
1151: if ($hash{'display_attrs_14'} == 1) {
1152: my $abstract = &Apache::lonnet::metadata($filelink,'abstract');
1153: $r->print('<td> '.($abstract eq '' ? ' ' : $abstract).
1154: " </td>\n");
1155: }
1156:
1157: $r->print(&Apache::loncommon::end_data_table_row());
1158: }
1159:
1160:
1161:
1162: # -- display directory
1163: if ($fnptr == $dirptr) {
1164: my $curdir = $startdir.$filecom[0].'/';
1165: my $anchor = $curdir;
1166: $anchor =~ s/\W//g;
1167: #SB $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
1168: $r->print(&Apache::loncommon::start_data_table_row()); # SB: bgcolor suggestion: darkgrey ("LC_info_row"?!?)
1169: # $r->print('<tr class="LC_info_row">');
1170: $r->print($extrafield.'<td valign="'.$valign.'">');
1171: &begin_form ($r,$curdir);
1172: my $indentm1 = $indent-1;
1173: if ($indentm1 < 12 and $indentm1 > 0) {
1174: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$indentm1,
1175: ".gif class='LC_icon' />\n");
1176: } else {
1177: my $ten = int($indentm1/10.);
1178: my $rem = $indentm1%10.0;
1179: my $count = 0;
1180: while ($count < $ten) {
1181: $r->print ("<img alt=\"\" src=",$iconpath
1182: ,"whitespace10.gif class='LC_icon' />\n");
1183: $count++;
1184: }
1185: $r->print ("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
1186: ".gif class='LC_icon' />\n") if $rem > 0;
1187: }
1188: $r->print ('<input type="hidden" name="acts" value="" />');
1189: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
1190: 'folder_pointer_'.$diropen.'.gif"');
1191: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
1192: "\n");
1193: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
1194: $r->print ('<a href="javascript:gothere(\''
1195: .$quotable_curdir.'\')">'
1196: .'<img alt="'.&mt('Open Folder').'"src="'.
1197: $iconpath.'folder_'.$diropen.'.gif" class="LC_icon" /></a>'.
1198: "\n");
1199: $r->print ("$listname</form></td>\n");
1200: # Attributes
1201: my $filelink = $startdir.$filecom[0].'/default';
1202:
1203: if ($hash{'display_attrs_0'} == 1) {
1204: my $title = &Apache::lonnet::gettitle($filelink);
1205: $r->print('<td> '.($title eq '' ? ' ' : $title).
1206: ' </td>'."\n");
1207: }
1208: $r->print('<td align="right"> ',
1209: $filecom[8]," </td>\n")
1210: if $hash{'display_attrs_1'} == 1;
1211: $r->print('<td> '.
1212: (&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
1213: if $hash{'display_attrs_2'} == 1;
1214: $r->print('<td> '.
1215: (&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
1216: if $hash{'display_attrs_3'} == 1;
1217:
1218: if ($hash{'display_attrs_4'} == 1) {
1219: my $author = &Apache::lonnet::metadata($filelink,'author');
1220: $r->print('<td> '.($author eq '' ? ' ' : $author).
1221: " </td>\n");
1222: }
1223: if ($hash{'display_attrs_5'} == 1) {
1224: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1225: # $keywords = ' ' if (!$keywords);
1226: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1227: " </td>\n");
1228: }
1229: if ($hash{'display_attrs_6'} == 1) {
1230: my $lang = &Apache::lonnet::metadata($filelink,'language');
1231: $lang = &Apache::loncommon::languagedescription($lang);
1232: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1233: " </td>\n");
1234: }
1235:
1236: if ($hash{'display_attrs_8'} == 1) {
1237: $r->print('<td> </td>');
1238: }
1239: if ($hash{'display_attrs_10'} == 1) {
1240: $r->print('<td> </td>');
1241: }
1242: if ($hash{'display_attrs_7'} == 1) {
1243: $r->print('<td> </td>');
1244: }
1245: if ($hash{'display_attrs_11'} == 1) {
1246: $r->print('<td> </td>');
1247: }
1248: if ($hash{'display_attrs_12'} == 1) {
1249: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1250: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1251: " </td>\n");
1252: }
1253: if ($hash{'display_attrs_13'} == 1) {
1254: my $notes = &Apache::lonnet::metadata($filelink,'notes');
1255: $r->print('<td> '.($notes eq '' ? ' ' : $notes).
1256: " </td>\n");
1257: }
1258:
1259: if ($hash{'display_attrs_14'} == 1) {
1260: my $abstract = &Apache::lonnet::metadata($filelink,'abstract');
1261: $r->print('<td> '.($abstract eq '' ? ' ' : $abstract).
1262: " </td>\n");
1263: }
1264:
1265: $r->print(&Apache::loncommon::end_data_table_row());
1266: }
1267:
1268: }
1269:
1270: sub coursecontext {
1271: my ($r,$filelink)=@_;
1272: my $filesymb=&Apache::lonnet::symbread($filelink);
1273: if ($filesymb) {
1274: my ($map,$index,$resource)=&Apache::lonnet::decode_symb($filesymb);
1275: $r->print(&mt('Already in this course:<br />[_1] in folder/map [_2].<br />',
1276: &Apache::lonnet::gettitle($resource),
1277: &Apache::lonnet::gettitle($map)));
1278: }
1279: }
1280:
1281: sub showpreview {
1282: my ($filelink)=@_;
1283: if ($filelink=~m-^(/ext/|http://)-) {
1284: return &mt('External Resource, preview not enabled');
1285: }
1286: my ($curfext)=($filelink=~/\.(\w+)$/);
1287: my $output='';
1288: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
1289: if ($embstyle eq 'ssi') {
1290: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
1291: '.tmp';
1292: if ((!$env{'form.updatedisplay'}) &&
1293: (-e $cache)) {
1294: open(FH,$cache);
1295: $output=join("\n",<FH>);
1296: close(FH);
1297: } else {
1298: # In update display mode, remove old cache. This is done to retroactively
1299: # clean up course context renderings.
1300: if (-e $cache) {
1301: unlink($cache);
1302: }
1303: $output=&Apache::lonnet::ssi_body($filelink);
1304: # Is access denied? Don't render, don't store
1305: if ($output=~/LONCAPAACCESSCONTROLERRORSCREEN/s) {
1306: $output='';
1307: # Was this rendered in course content? Don't store
1308: } elsif (!&Apache::lonnet::symbread($filelink)) {
1309: open(FH,">$cache");
1310: print FH $output;
1311: close(FH);
1312: }
1313: }
1314: $output='<font size="-2">'.$output.'</font>';
1315: } elsif ($embstyle eq 'img') {
1316: $output='<img alt="'.&mt('Preview').'" src="'.$filelink.'" />';
1317: } elsif ($filelink=~m{^/res/($match_domain)/($match_username)/}) {
1318: $output='<img alt="'.&mt('Preview').'" src="http://'.
1319: &Apache::lonnet::hostname(&Apache::lonnet::homeserver($2,$1)).
1320: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1321: }
1322: return $output;
1323: }
1324:
1325: sub dynmetaprint {
1326: my ($r,$filelink,$item)=@_;
1327: if ($dynhash{$filelink}->{$item}) {
1328: $r->print("\n<br />".$fieldnames{$item}.': '.
1329: &Apache::lonmeta::prettyprint($item,
1330: $dynhash{$filelink}->{$item},
1331: (($env{'form.catalogmode'} ne 'import')?'preview':''),
1332: '',
1333: (($env{'form.catalogmode'} eq 'import')?'document.forms.fileattr':''),1));
1334: }
1335: }
1336:
1337: # ------------------- prints the beginning of a form for directory or file link
1338: sub begin_form {
1339: my ($r,$uri) = @_;
1340: my $anchor = $uri;
1341: $anchor =~ s/\W//g;
1342: $uri=&Apache::loncommon::escape_single($uri);
1343: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1344: '#'.$anchor.
1345: '" onSubmit="return rep_dirpath(\''.$dnum.'\''.
1346: ',document.forms.fileattr.acts.value)" '.
1347: 'enctype="application/x-www-form-urlencoded">'."\n");
1348: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'" />'.
1349: "\n");
1350: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n");
1351: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
1352: $dnum++;
1353: }
1354:
1355: # --------- settings whenever the user causes the indexer window to be launched
1356: sub start_fresh_session {
1357: my ($hash) = @_;
1358: delete $hash->{'form.catalogmode'};
1359: delete $hash->{'form.mode'};
1360: delete $hash->{'form.form'};
1361: delete $hash->{'form.element'};
1362: delete $hash->{'form.omit'};
1363: delete $hash->{'form.only'};
1364: foreach (keys %{$hash}) {
1365: delete $hash->{$_} if (/^(pre_|store)/);
1366: }
1367: }
1368:
1369: # ------------------------------------------------------------------- setvalues
1370: sub setvalues {
1371: # setvalues is used in registerurl to synchronize the database
1372: # hash and environment hashes
1373: my ($H1,$h1key,$H2,$h2key) =@_;
1374: #
1375: if (exists $H2->{$h2key}) {
1376: $H1->{$h1key} = $H2->{$h2key};
1377: } elsif (exists $H1->{$h1key}) {
1378: $H2->{$h2key} = $H1->{$h1key};
1379: }
1380: }
1381:
1382: 1;
1383:
1384: sub cleanup {
1385: if (tied(%hash)){
1386: &Apache::lonnet::logthis('Cleanup indexer: hash');
1387: }
1388: return OK;
1389: }
1390:
1391:
1392:
1393:
1394:
1395: =head1 NAME
1396:
1397: Apache::lonindexer - mod_perl module for cross server filesystem browsing
1398:
1399: =head1 SYNOPSIS
1400:
1401: Invoked by /etc/httpd/conf/srm.conf:
1402:
1403: <LocationMatch "^/res.*/$">
1404: SetHandler perl-script
1405: PerlHandler Apache::lonindexer
1406: </LocationMatch>
1407:
1408: =head1 INTRODUCTION
1409:
1410: This module enables a scheme of browsing across a cross server.
1411:
1412: This is part of the LearningOnline Network with CAPA project
1413: described at http://www.lon-capa.org.
1414:
1415: =head1 BEGIN SUBROUTINE
1416:
1417: This routine is only run once after compilation.
1418:
1419: =over 4
1420:
1421: =item *
1422:
1423: Initializes %language hash table.
1424:
1425: =back
1426:
1427: =head1 HANDLER SUBROUTINE
1428:
1429: This routine is called by Apache and mod_perl.
1430:
1431: =over 4
1432:
1433: =item *
1434:
1435: read in machine configuration variables
1436:
1437: =item *
1438:
1439: see if called from an interactive mode
1440:
1441: =item *
1442:
1443: refresh environment with user database values (in %hash)
1444:
1445: =item *
1446:
1447: define extra fields and buttons in case of special mode
1448:
1449: =item *
1450:
1451: set catalogmodefunctions to have extra needed javascript functionality
1452:
1453: =item *
1454:
1455: print header
1456:
1457: =item *
1458:
1459: evaluate actions from previous page (both cumulatively and chronologically)
1460:
1461: =item *
1462:
1463: output title
1464:
1465: =item *
1466:
1467: get state of file attributes to be showing
1468:
1469: =item *
1470:
1471: output state of file attributes to be showing
1472:
1473: =item *
1474:
1475: output starting row to the indexed file/directory hierarchy
1476:
1477: =item *
1478:
1479: read in what directories have previously been set to "open"
1480:
1481: =item *
1482:
1483: if not at top level, provide an uplink arrow
1484:
1485: =item *
1486:
1487: recursively go through all the directories and output as appropriate
1488:
1489: =item *
1490:
1491: information useful for group import
1492:
1493: =item *
1494:
1495: end the tables
1496:
1497: =item *
1498:
1499: end the output and return
1500:
1501: =back
1502:
1503: =head1 OTHER SUBROUTINES
1504:
1505: =over 4
1506:
1507: =item *
1508:
1509: scanDir - recursive scan of a directory
1510:
1511: =item *
1512:
1513: get_list - get complete matched list based on the uri (returns an array)
1514:
1515: =item *
1516:
1517: match_ext - filters out files based on extensions (returns an array)
1518:
1519: =item *
1520:
1521: display_line - displays one line in appropriate table format
1522:
1523: =item *
1524:
1525: begin_form - prints the beginning of a form for directory or file link
1526:
1527: =item *
1528:
1529: start_fresh_session - settings whenever the user causes the indexer window
1530: to be launched
1531:
1532: =back
1533:
1534: =cut
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to lonindexer.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / interface