1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.195 2009/03/19 15:01:24 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: $extrafield='<td class="LC_bottom">'.
182: '<img alt="" src="'.$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: $extrafield='<td class="LC_bottom">'.
193: '<img alt="" src="'.$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: $r->print(&Apache::loncommon::start_page('Content Library',$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<=16; $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<=16; $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: 'gl' => 'Grade Level',
452: 'sd' => 'Standards',
453: 'sa' => 'Source Available',
454: 'sr' => 'Show resource',
455: 'li' => 'Linked/Related Resources',
456: 'av' => 'All versions',
457: 'ud' => 'Update Display',
458: 'pr' => 'Problems',
459: 'gr' => 'Graphics',
460: 'at' => 'All types',
461: 'hd' => 'Display Options'
462: );
463: $r->print(<<END);
464: <fieldset>
465: <legend>$lt{'hd'}</legend>
466: <form method="post" name="fileattr" action="$uri"
467: enctype="application/x-www-form-urlencoded">
468: <label><input type="checkbox" name="attr9" value="1" $attrchk[9] onClick="this.form.submit();" /> $lt{'av'}</label>
469: <table border="0">
470: <tr>
471: <td><label><input type="checkbox" name="attr0" value="1" $attrchk[0] onClick="this.form.submit();" /> $lt{'ti'}</label></td>
472: <td><label><input type="checkbox" name="attr4" value="1" $attrchk[4] onClick="this.form.submit();" /> $lt{'au'}</label></td>
473: <td><label><input type="checkbox" name="attr5" value="1" $attrchk[5] onClick="this.form.submit();" /> $lt{'kw'}</label></td>
474: <td><label><input type="checkbox" name="attr6" value="1" $attrchk[6] onClick="this.form.submit();" /> $lt{'ln'}</label></td>
475: <td><label><input type="checkbox" name="attr13" value="1" $attrchk[13] onClick="this.form.submit();" /> $lt{'nt'}</label></td>
476: <td><label><input type="checkbox" name="attr16" value="1" $attrchk[16] onClick="this.form.submit();" /> $lt{'sd'}</label></td>
477: </tr>
478: <tr>
479: <td><label><input type="checkbox" name="attr1" value="1" $attrchk[1] onClick="this.form.submit();" /> $lt{'si'}</label></td>
480: <td><label><input type="checkbox" name="attr2" value="1" $attrchk[2] onClick="this.form.submit();" /> $lt{'la'}</label></td>
481: <td><label><input type="checkbox" name="attr3" value="1" $attrchk[3] onClick="this.form.submit();" /> $lt{'lm'}</label></td>
482: <td><label><input type="checkbox" name="attr10" value="1" $attrchk[10] onClick="this.form.submit();" /> $lt{'sa'}</label></td>
483: <td><label><input type="checkbox" name="attr14" value="1" $attrchk[14] onClick="this.form.submit();" /> $lt{'ab'}</label></td>
484: <td> </td>
485: </tr>
486: <tr>
487: <td><label><input type="checkbox" name="attr8" value="1" $attrchk[8] onClick="this.form.submit();" /> $lt{'st'}</label></td>
488: <td><label><input type="checkbox" name="attr11" value="1" $attrchk[11] onClick="this.form.submit();" /> $lt{'li'}</label></td>
489: <td><label><input type="checkbox" name="attr7" value="1" $attrchk[7] onClick="this.form.submit();" /> $lt{'sr'}</label></td>
490: <td><label><input type="checkbox" name="attr12" value="1" $attrchk[12] onClick="this.form.submit();" /> $lt{'sb'}</label></td>
491: <td><label><input type="checkbox" name="attr15" value="1" $attrchk[15] onClick="this.form.submit();" /> $lt{'gl'}</label></td>
492: <td> </td>
493: </tr>
494: </table>
495: <input type="hidden" name="attrs" value="1" />
496: END
497: my @file_categories = &Apache::loncommon::filecategories();
498: my %select_file_categories;
499: my @select_form_order = ('');
500: $select_file_categories{''} = &mt('All file types');
501: foreach my $cat (@file_categories) {
502: my $types = join(",",&Apache::loncommon::filecategorytypes($cat));
503: $select_file_categories{$types} = $cat;
504: push(@select_form_order,$types);
505: }
506: $select_file_categories{'select_form_order'} = \@select_form_order;
507: my $type_element=
508: &Apache::loncommon::select_form($typeselect,'only',
509: %select_file_categories);
510: $type_element = '<label>'.&mt('File Type Displayed: [_1]',
511: $type_element).'</label>';
512: $r->print($type_element
513: .'</fieldset>');
514: $r->print(<<END);
515: <br />
516: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
517: <input type="hidden" name="acts" value="" />
518: $closebutton $groupimportbutton
519: END
520: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
521:
522: # -------------- Filter out sequence containment in crumbs and "recent folders"
523: my $storeuri=$uri;
524: $storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
525: $storeuri=~s/\/+/\//g;
526: # ---------------------------------------------------------------- Bread crumbs
527: $r->print(&Apache::lonhtmlcommon::crumbs($storeuri,'','',
528: (($env{'form.catalogmode'} eq 'import')?
529: 'document.forms.fileattr':'')).
530: &Apache::lonhtmlcommon::select_recent('residx','resrecent',
531: '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();'));
532: # -------------------------------------------------------- Resource Home Button
533: my $reshome=$env{'course.'.$env{'request.course.id'}.'.reshome'};
534: if ($reshome) {
535: $r->print("<span class=\"LC_fontsize_large\"><a href='");
536: if ($env{'form.catalogmode'} eq 'import') {
537: $r->print('javascript:document.forms.fileattr.action="'.&Apache::loncommon::inhibit_menu_check($reshome).'";document.forms.fileattr.submit();');
538: } else {
539: $r->print($reshome);
540: }
541: $r->print("'>".&mt('Home').'</a></span>');
542: }
543: $r->print('</form>');
544: # ------------------------------------------------------ Remember where we were
545: &Apache::loncommon::storeresurl($storeuri);
546: &Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
547: # -------------------------------------------------- Check All and Uncheck all
548: if ($env{'form.catalogmode'} eq 'import') {
549: $r->print('<br /><input type="button" value="'.&mt("Check All").'" id="checkallbutton" onClick="javascript:checkAll()" />');
550: $r->print('<input type="button" value="'.&mt("Uncheck All").'" id="uncheckallbutton" onClick="javascript:uncheckAll()" />');
551: }
552: # ----------------- output starting row to the indexed file/directory hierarchy
553: #$r->print(&initdebug());
554: #$r->print(&writedebug("Omit:@Omit")) if (@Omit);
555: #$r->print(&writedebug("Only:@Only")) if (@Only);
556: $r->print('<br /><br />');
557: $r->print(&Apache::loncommon::start_data_table("LC_tableBrowseRes")
558: .&Apache::loncommon::start_data_table_header_row());
559: $r->print("<th $colspan>".&mt('Name')."</th>\n");
560: $r->print("<th>".&mt('Title')."</th>\n")
561: if ($hash{'display_attrs_0'} == 1);
562: $r->print('<th class="LC_right">'.&mt("Size")." (".&mt("bytes").") ".
563: "</th>\n") if ($hash{'display_attrs_1'} == 1);
564: $r->print("<th>".&mt("Last accessed")."</th>\n")
565: if ($hash{'display_attrs_2'} == 1);
566: $r->print("<th>".&mt("Last modified")."</th>\n")
567: if ($hash{'display_attrs_3'} == 1);
568: $r->print("<th>".&mt("Author(s)")."</th>\n")
569: if ($hash{'display_attrs_4'} == 1);
570: $r->print("<th>".&mt("Keywords")."</th>\n")
571: if ($hash{'display_attrs_5'} == 1);
572: $r->print("<th>".&mt("Language")."</th>\n")
573: if ($hash{'display_attrs_6'} == 1);
574: $r->print("<th>".&mt("Usage Statistics")." <br />(".
575: &mt("Courses/Network Hits").") ".&mt('updated periodically')."</th>\n")
576: if ($hash{'display_attrs_8'} == 1);
577: $r->print("<th>".&mt("Source Available")."</th>\n")
578: if ($hash{'display_attrs_10'} == 1);
579: $r->print("<th>".&mt("Linked/Related Resources")."</th>\n")
580: if ($hash{'display_attrs_11'} == 1);
581: $r->print("<th>".&mt("Resource")."</th>\n")
582: if ($hash{'display_attrs_7'} == 1);
583: $r->print("<th>".&mt("Subject")."</th>\n")
584: if ($hash{'display_attrs_12'} == 1);
585: $r->print("<th>".&mt("Notes")."</th>\n")
586: if ($hash{'display_attrs_13'} == 1);
587: $r->print("<th>".&mt("Abstract")."</th>\n")
588: if ($hash{'display_attrs_14'} == 1);
589: $r->print("<th>".&mt("Grade Level")."</th>\n")
590: if ($hash{'display_attrs_15'} == 1);
591: $r->print("<th>".&mt("Standards")."</th>\n")
592: if ($hash{'display_attrs_16'} == 1);
593:
594: $r->print(&Apache::loncommon::end_data_table_header_row());
595:
596:
597:
598: # ----------------- read in what directories have previously been set to "open"
599: foreach (keys %hash) {
600: if ($_ =~ /^diropen_status_/) {
601: my $key = $_;
602: $key =~ s/^diropen_status_//;
603: $dirs{$key} = $hash{$_};
604: }
605: }
606:
607: if ($env{'form.openuri'}) { # take care of review and refresh options
608: my $uri=$env{'form.openuri'};
609: if (exists($hash{'diropen_status_'.$uri})) {
610: my $cursta = $hash{'diropen_status_'.$uri};
611: $dirs{$uri} = 'open';
612: $hash{'diropen_status_'.$uri} = 'open';
613: if ($cursta eq 'open') {
614: $dirs{$uri} = 'closed';
615: $hash{'diropen_status_'.$uri} = 'closed';
616: }
617: } else {
618: $hash{'diropen_status_'.$uri} = 'open';
619: $dirs{$uri} = 'open';
620: }
621: }
622:
623: my $toplevel;
624: my $indent = 0;
625: $uri = $uri.'/' if $uri !~ /.*\/$/;
626:
627: if ($env{'form.dirPointer'} ne 'on') {
628: $hash{'top.level'} = $uri;
629: $toplevel = $uri;
630: } else {
631: $toplevel = $hash{'top.level'};
632: }
633:
634: # -------------------------------- if not at top level, provide an uplink arrow
635: if ($toplevel ne '/res/'){
636: my (@uri_com) = split(/\//,$uri);
637: pop @uri_com;
638: my $upone = join('/',@uri_com);
639: my @list = qw (0);
640: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
641: $indent = 1;
642: }
643:
644: # -------- recursively go through all the directories and output as appropriate
645: &scanDir ($r,$toplevel,$indent,\%hash);
646:
647: # -------------------------------------------------------------- end the tables
648: $r->print(&Apache::loncommon::end_data_table());
649:
650: # ---------------------------- embed hidden information useful for group import
651: $r->print("<form name='fnum' action=''>");
652: $r->print("<input type='hidden' name='fnum' value='$fnum' /></form>");
653:
654: # --------------------------------------------------- end the output and return
655: $r->print(&Apache::loncommon::end_page()."\n");
656: }
657: if(! $c->aborted()) {
658: # write back into the temporary file
659: my %dbfile;
660: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
661: while (my($key,$value) = each(%hash)) {
662: $dbfile{$key}=$value;
663: }
664: untie(%dbfile);
665: }
666: }
667:
668: return OK;
669: }
670:
671: # ----------------------------------------------- recursive scan of a directory
672: sub scanDir {
673: my ($r,$startdir,$indent,$hashref)=@_;
674: my $c = $r->connection();
675: my ($compuri,$curdir);
676: my $dirptr=16384;
677: my $obs;
678: $indent++;
679: my %dupdirs = %dirs;
680: my @list=&get_list($r,$startdir);
681: foreach my $line (@list) {
682: return if ($c->aborted());
683: #This is a kludge, sorry aboot this
684: my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
685: next if($strip =~ /.*\.meta$/ | $obs eq '1');
686: my (@fileparts) = split(/\./,$strip);
687: if ($hash{'display_attrs_9'} != 1) {
688: # if not all versions to be shown
689: if (scalar(@fileparts) >= 3) {
690: my $fext = pop @fileparts;
691: my $ov = pop @fileparts;
692: my $fname = join ('.',@fileparts,$fext);
693: next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
694: }
695: }
696:
697: if ($dom eq 'domain') {
698: # dom list has full path /res/<domain name>/ already
699: $curdir='';
700: $compuri = (split(/\&/,$line))[0];
701: } else {
702: # user, dir & file have name only, i.e., w/o path
703: $compuri = join('',$startdir,$strip,'/');
704: $curdir = $startdir;
705: }
706: my $diropen = 'closed';
707: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
708: while (my ($key,$val)= each %dupdirs) {
709: if ($key eq $compuri and $val eq "open") {
710: $diropen = "opened";
711: delete($dupdirs{$key});
712: delete($dirs{$key});
713: }
714: }
715: }
716: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
717: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
718: }
719: $indent--;
720: }
721:
722: # --------------- get complete matched list based on the uri (returns an array)
723: sub get_list {
724: my ($r,$uri)=@_;
725: my @list=();
726: (my $luri = $uri) =~ s/\//_/g;
727: if ($env{'form.updatedisplay'}) {
728: foreach (keys %hash) {
729: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
730: delete $hash{$_} if ($_ =~ /^dirlist_timestamp_files_/);
731: }
732: }
733:
734: if (defined($hash{'dirlist_files_'.$luri}) &&
735: $hash{'dirlist_timestamp_files_'.$luri}+600 > (time)) {
736: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
737: } elsif ($uri=~/\.(page|sequence)\/$/) {
738: # is a page or a sequence
739: $uri=~s/\/$//;
740: $uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
741: $uri=~s/\/+/\//g;
742: foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
743: my @ratpart=split(/\:/,$_);
744: push(@list,&LONCAPA::map::qtescape($ratpart[1]));
745: }
746: $hash{'dirlist_files_'.$luri} = join("\n",@list);
747: } else {
748: # is really a directory
749: @list = &Apache::lonnet::dirlist($uri);
750: $hash{'dirlist_files_'.$luri} = join("\n",@list);
751: $hash{'dirlist_timestamp_files_'.$luri} = time;
752: }
753: return @list=&match_ext($r,@list);
754: }
755:
756: sub dynmetaread {
757: my $uri=shift;
758: if (($hash{'display_attrs_8'}==1) || ($hash{'display_attrs_11'}==1)) {
759: # We don't want the filename
760: $uri=~s/\/[^\/]+$//;
761: # Did we already see this?
762: my $builddir=$uri;
763: while ($builddir) {
764: if ($dynread{$builddir}) {
765: return 0;
766: }
767: $builddir=~s/\/[^\/]+$//;
768: }
769: # Actually get the data
770: %dynhash=
771: (%dynhash,&Apache::lonmeta::get_dynamic_metadata_from_sql($uri.'/'));
772: # Remember that we got it
773: $dynread{$uri}=1;
774: }
775: }
776:
777: sub initdebug {
778: my $start_page=
779: &Apache::loncommon::start_page('Debug',undef,
780: {'only_body' => 1,});
781: $start_page =~ s/\n/ /g;
782: return <<ENDJS;
783: <script type="text/javascript">
784: var debugging = true;
785: if (debugging) {
786: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
787: }
788:
789: function output(text) {
790: if (debugging) {
791: debuggingWindow.document.writeln(text);
792: }
793: }
794: output('$start_page<pre>');
795: </script>
796: ENDJS
797: }
798:
799: sub writedebug {
800: my ($text) = @_;
801: return "<script type=\"text/javascript\">output('$text');</script>";
802: }
803:
804: # -------------------- filters out files based on extensions (returns an array)
805: sub match_ext {
806: my ($r,@packlist)=@_;
807: my @trimlist;
808: my $nextline;
809: my @fileext;
810: my $dirptr=16384;
811:
812: foreach my $line (@packlist) {
813: chomp $line;
814: $line =~ s/^\/home\/httpd\/html//;
815: my @unpackline = split (/\&/,$line);
816: next if ($unpackline[0] eq '.');
817: next if ($unpackline[0] eq '..');
818: my @filecom = split (/\./,$unpackline[0]);
819: my $fext = pop(@filecom);
820: my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
821: if ($fnptr == 0 and $unpackline[3] ne "") {
822: my $embstyle = &Apache::loncommon::fileembstyle($fext);
823: push @trimlist,$line if (defined($embstyle) &&
824: ($embstyle ne 'hdn' or $fext eq 'meta'));
825: } else {
826: push @trimlist,$line;
827: }
828: }
829: @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
830: return @trimlist;
831: }
832:
833: # ------------------------------- displays one line in appropriate table format
834: sub display_line {
835: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
836: my (@pathfn, $fndir);
837: # there could be relative paths (files actually belonging into this directory)
838: # or absolute paths (for example, from sequences)
839: my $absolute;
840: my $pathprefix;
841: if ($line=~m|^/res/| && $startdir ne '') {
842: $absolute=1;
843: $pathprefix='';
844: } else {
845: $absolute=0;
846: $pathprefix=$startdir;
847: }
848: my $dirptr=16384;
849: #SB my $fileclr="#ffffe6";
850: my $iconpath= $r->dir_config('lonIconsURL') . '/';
851:
852: my @filecom = split (/\&/,$line);
853: my @pathcom = split (/\//,$filecom[0]);
854: my $listname = $pathcom[scalar(@pathcom)-1];
855: my $fnptr = $filecom[3]&$dirptr;
856: my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
857: $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
858: my $nowOpen = ($diropen eq 'opened' ? 1 : 0);
859:
860: my $tabtag='</td>';
861: my $i=0;
862: while ($i<=16) {
863: $tabtag=join('',$tabtag,"<td> </td>")
864: if ($i != 9 &&
865: $hash{'display_attrs_'.$i} == 1);
866: $i++;
867: }
868: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
869:
870: # display uplink arrow
871: if ($filecom[1] eq 'viewOneUp') {
872: my $updir=$startdir;
873: # -------------- Filter out sequence containment in crumbs and "recent folders"
874: $updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
875: $updir=~s/\/+/\//g;
876:
877: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
878: $r->print(&Apache::loncommon::start_data_table_row()); # valign="$valign" ?!?
879: $r->print($extrafield);
880: $r->print("<td>\n");
881: $r->print ('<form method="post" name="dirpathUP" action="'.$updir.
882: '/" '.
883: 'onSubmit="return rep_dirpath(\'UP\','.
884: 'document.forms.fileattr.acts.value)" '.
885: 'enctype="application/x-www-form-urlencoded"'.
886: '>'."\n");
887: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
888: $r->print ('<input type=hidden name=openuri value="'.
889: $startdir.'" />'."\n");
890: $r->print ('<input type="hidden" name="acts" value="" />'."\n");
891: $r->print ('<a href="#" onClick="document.dirpathUP.submit()"><img src="'.$iconpath.'arrow.up.gif"');
892: $r->print (' name="'.$msg.'" type="image" class="LC_fileicon" />'.
893: "\n");
894: $r->print(&mt("Up")."</a></form>$tabtag");
895: $r->print(&Apache::loncommon::end_data_table_row());
896: return OK;
897: }
898: # Do we have permission to look at this?
899:
900: if($filecom[15] ne '1') { return OK if (!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])); }
901:
902: # make absolute links appear on different background
903: #SB if ($absolute) { $fileclr='#ccdd99'; }
904:
905: # display domain
906: if ($filecom[1] eq 'domain') {
907: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n")
908: if ($env{'form.dirPointer'} eq "on");
909: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
910: $r->print(&Apache::loncommon::start_data_table_row()); # valign="$valign" ?!?"
911: $r->print($extrafield);
912: $r->print("<td>");
913: &begin_form ($r,$filecom[0]);
914: my $anchor = $filecom[0];
915: $anchor =~ s/\W//g;
916: $r->print ('<a name="'.$anchor.'"></a>');
917: $r->print ('<input type="hidden" name="acts" value="" />');
918: $r->print ('<a href="#" onClick="document.dirpath'.($dnum-1).'.submit()"><img src="'.$iconpath.'arrow.'.($nowOpen ? "open" : "closed" ).'.gif"');
919: $r->print (' name="'.$msg.'" type="image" class="LC_fileicon" /></a>'.
920: "\n");
921: my $quotable_filecom = &Apache::loncommon::escape_single($filecom[0]);
922: $r->print ('<a href="javascript:gothere(\''.$quotable_filecom.
923: '\')"><img alt="" src="'.$iconpath.'server.gif"');
924: $r->print (' class="LC_fileicon" />'."\n");
925: $r->print (&mt("Domain")." - $listname </a>");
926: if (&Apache::lonnet::domain($listname,'description')) {
927: $r->print("<br />(".&Apache::lonnet::domain($listname,'description').
928: ")");
929: }
930: $r->print("</form>$tabtag");
931: $r->print(&Apache::loncommon::end_data_table_row());
932: return OK;
933:
934: # display user directory
935: }
936: if ($filecom[1] eq 'user') {
937: # $r->print("<tr valign=$valign bgcolor=\"$fileclr\">$extrafield");
938: my $curdir = $startdir.$filecom[0].'/';
939: my $anchor = $curdir;
940: $anchor =~ s/\W//g;
941: #SB $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
942: $r->print(&Apache::loncommon::start_data_table_row()
943: .$extrafield.'<td class="LC_'.$valign.'">');
944: &begin_form ($r,$curdir);
945: $r->print ('<a name="'.$anchor.'"></a><img alt="" src="'.$iconpath.
946: 'whitespace_21.gif" class="LC_icon" />'."\n");
947: $r->print ('<input type="hidden" name="acts" value="" />');
948: $r->print ('<a href="#" onClick="document.dirpath'.($dnum-1).'.submit()">');
949: $r->print ('<img src="'.$iconpath.'arrow.'.($nowOpen ? "open" : "closed" ).
950: '.gif" class="LC_fileicon"');
951: $r->print (' name="'.$msg.'"/></a>'.
952: "\n");
953: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
954: $r->print ('<a href="javascript:gothere(\''.$quotable_curdir
955: .'\')"><img alt="'.$msg.'" src="'.
956: $iconpath.'quill.gif" class="LC_fileicon" />');
957: my $domain=(split(m|/|,$startdir))[2];
958: my $plainname=&Apache::loncommon::plainname($listname,$domain);
959: $r->print ($listname.'</a>');
960:
961: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
962: $r->print('</form>'.$tabtag);
963: $r->print(&Apache::loncommon::end_data_table_row());
964: return OK;
965: }
966:
967: # display file
968: if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
969: my $title;
970: my $filelink = $pathprefix.$filecom[0];
971: if ($hash{'display_attrs_0'} == 1) {
972: $title = &Apache::lonnet::gettitle($filelink);
973: }
974: my @file_ext = split (/\./,$listname);
975: my $curfext = $file_ext[-1];
976: if (@Omit) {
977: foreach (@Omit) { return OK if (lc($curfext) eq $_); }
978: }
979: if (@Only) {
980: my $skip = 1;
981: foreach (@Only) { $skip = 0 if (lc($curfext) eq $_); }
982: return OK if ($skip > 0);
983: }
984: # Set the icon for the file
985: my $iconname = &Apache::loncommon::icon($listname);
986: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">);
987: $r->print(&Apache::loncommon::start_data_table_row()); #SB valign="$valign" ?!?
988: $r->print('<td class="LC_middle LC_nobreak">');
989:
990: if ($env{'form.catalogmode'} eq 'interactive') {
991: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
992: $r->print("<a href=\"javascript:select_data(\'",
993: $quotable_filelink,"')\">");
994: $r->print("<img alt=\"\" src='",$iconpath,"select.gif' class='LC_icon' /></a>".
995: "\n");
996: $r->print('</td><td class="LC_middle"><span class="LC_nobreak">');
997: } elsif ($env{'form.catalogmode'} eq 'import') {
998: $r->print("<form name='form$fnum' action=''>\n");
999: $r->print("<input type='checkbox' name='filelink"."' ".
1000: "value='$filelink' onClick='".
1001: "javascript:queue(\"form$fnum\")' ");
1002: if ($hash{'store_'.$filelink}) {
1003: $r->print("checked");
1004: }
1005: $r->print(" />\n");
1006: $r->print('</form></td><td class="LC_middle"><span class="LC_nobreak">');
1007: $hash{"pre_${fnum}_link"}=$filelink;
1008: $hash{"pre_${fnum}_title"}=$title;
1009: if (!$hash{"pre_${fnum}_title"}) {
1010: $hash{"pre_${fnum}_title"} = 'Not_retrieved';
1011: }
1012: $fnum++;
1013: }
1014: # Form to open or close sequences
1015: if ($filelink=~/\.(page|sequence)$/) {
1016: my $curdir = $startdir.$filecom[0].'/';
1017: &begin_form($r,$curdir);
1018: $indent--;
1019: }
1020: # General indentation
1021: my $count = 0;
1022: while ($count < $indent) {
1023: $r->print("<img alt=\"\" src=".$iconpath.
1024: "whitespace_21.gif class='LC_icon' />\n");
1025: $count++;
1026: }
1027: # Sequence open/close icon
1028: if ($filelink=~/\.(page|sequence)$/) {
1029: my $curdir = $startdir.$filecom[0].'/';
1030: my $anchor = $curdir;
1031: $anchor =~ s/\W//g;
1032: $r->print ('<input type="hidden" name="acts" value="" />');
1033: $r->print ('<a name="'.$anchor.'"></a>');
1034: $r->print ('<a href="#" onClick="document.dirpath'.($dnum-1).'.submit()">');
1035: $r->print ('<img src="'.$iconpath.'arrow.'.($nowOpen ? "open" : "closed" ).
1036: '.gif" class="LC_fileicon"');
1037: $r->print (' name="'.$msg.'" type="image" class="LC_fileicon" /></a>'.
1038: "\n");
1039: }
1040: # Filetype icons
1041: $r->print("<img alt=\"\" src='$iconname' class='LC_fileicon' />\n");
1042: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
1043:
1044: $r->print (" <a href=\"javascript:openWindow('".$quotable_filelink.
1045: "?inhibitmenu=yes','previewfile','450','500','no','yes','yes');\"".
1046: " target=\"_self\">$listname</a> ");
1047: $quotable_filelink = &Apache::loncommon::escape_single($filelink.'.meta');
1048: &Apache::loncommon::inhibit_menu_check(\$quotable_filelink);
1049: $r->print (" (<a href=\"javascript:openWindow('".$quotable_filelink.
1050: "?inhibitmenu=yes','metadatafile','500','550','no','yes','no');\" ".
1051: " target=\"_self\">".&mt('metadata')."</a>) ");
1052: # Close form to open/close sequence
1053: if ($filelink=~/\.(page|sequence)$/) {
1054: $r->print('</form>');
1055: }
1056: $r->print("</span></td>\n");
1057: if ($hash{'display_attrs_0'} == 1) {
1058: $r->print('<td> '.($title eq '' ? ' ' : $title).
1059: ' </td>'."\n");
1060: }
1061: $r->print('<td class="LC_right"> ',
1062: $filecom[8]," </td>\n")
1063: if $hash{'display_attrs_1'} == 1;
1064: $r->print('<td class="LC_nobreak"> '.
1065: (&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
1066: if $hash{'display_attrs_2'} == 1;
1067: $r->print('<td class="LC_nobreak"> '.
1068: (&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
1069: if $hash{'display_attrs_3'} == 1;
1070:
1071: if ($hash{'display_attrs_4'} == 1) {
1072: my $author = &Apache::lonnet::metadata($filelink,'author');
1073: $r->print('<td class="LC_nobreak"> '.($author eq '' ? ' ' : $author).
1074: " </td>\n");
1075: }
1076: if ($hash{'display_attrs_5'} == 1) {
1077: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1078: # $keywords = ' ' if (!$keywords);
1079: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1080: " </td>\n");
1081: }
1082:
1083: if ($hash{'display_attrs_6'} == 1) {
1084: my $lang = &Apache::lonnet::metadata($filelink,'language');
1085: $lang = &Apache::loncommon::languagedescription($lang);
1086: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1087: " </td>\n");
1088: }
1089: if ($hash{'display_attrs_8'} == 1) {
1090: # statistics
1091: &dynmetaread($filelink);
1092: $r->print("<td>");
1093: &dynmetaprint($r,$filelink,'count');
1094: &dynmetaprint($r,$filelink,'course');
1095: &dynmetaprint($r,$filelink,'stdno');
1096: &dynmetaprint($r,$filelink,'avetries');
1097: &dynmetaprint($r,$filelink,'difficulty');
1098: &dynmetaprint($r,$filelink,'disc');
1099: &dynmetaprint($r,$filelink,'clear');
1100: &dynmetaprint($r,$filelink,'technical');
1101: &dynmetaprint($r,$filelink,'correct');
1102: &dynmetaprint($r,$filelink,'helpful');
1103: &dynmetaprint($r,$filelink,'depth');
1104: $r->print(" </td>\n");
1105:
1106: }
1107: if ($hash{'display_attrs_10'} == 1) {
1108: my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
1109: if($source eq 'open') {
1110: my $sourcelink = &Apache::lonsource::make_link($filelink,$listname);
1111: my $quotable_sourcelink = &Apache::loncommon::escape_single($sourcelink);
1112: &Apache::loncommon::inhibit_menu_check(\$quotable_sourcelink);
1113: $r->print('<td>'."<a href=\"javascript:openWindow('"
1114: .$quotable_sourcelink.
1115: "', 'previewsource', '700', '700', 'no', 'yes','yes');\"".
1116: " target=\"_self\">".&mt('Source Code')."</a> "."</td>\n");
1117: } else { #A cuddled else. :P
1118: $r->print("<td> </td>\n");
1119: }
1120: }
1121: if ($hash{'display_attrs_11'} == 1) {
1122: # links
1123: &dynmetaread($filelink);
1124: $r->print('<td>');
1125: &coursecontext($r,$filelink);
1126: &dynmetaprint($r,$filelink,'goto_list');
1127: &dynmetaprint($r,$filelink,'comefrom_list');
1128: &dynmetaprint($r,$filelink,'sequsage_list');
1129: &dynmetaprint($r,$filelink,'dependencies');
1130: &dynmetaprint($r,$filelink,'course_list');
1131: $r->print('</td>');
1132: }
1133:
1134:
1135:
1136: if ($hash{'display_attrs_7'} == 1) {
1137: # Show resource
1138: my $output=&showpreview($filelink);
1139: $r->print('<td> '.($output eq '' ? ' ':$output).
1140: " </td>\n");
1141: }
1142:
1143: if ($hash{'display_attrs_12'} == 1) {
1144: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1145: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1146: " </td>\n");
1147: }
1148:
1149: if ($hash{'display_attrs_13'} == 1) {
1150: my $notes = &Apache::lonnet::metadata($filelink,'notes');
1151: $r->print('<td> '.($notes eq '' ? ' ' : $notes).
1152: " </td>\n");
1153: }
1154:
1155: if ($hash{'display_attrs_14'} == 1) {
1156: my $abstract = &Apache::lonnet::metadata($filelink,'abstract');
1157: $r->print('<td> '.($abstract eq '' ? ' ' : $abstract).
1158: " </td>\n");
1159: }
1160:
1161: if ($hash{'display_attrs_15'} == 1) {
1162: my $gradelevel = &Apache::lonnet::metadata($filelink,'gradelevel');
1163: $r->print('<td> '.($gradelevel eq '' ? ' ' : $gradelevel).
1164: " </td>\n");
1165: }
1166:
1167: if ($hash{'display_attrs_16'} == 1) {
1168: my $standards = &Apache::lonnet::metadata($filelink,'standards');
1169: $r->print('<td> '.($standards eq '' ? ' ' : $standards).
1170: " </td>\n");
1171: }
1172:
1173: $r->print(&Apache::loncommon::end_data_table_row());
1174: }
1175:
1176:
1177:
1178: # -- display directory
1179: if ($fnptr == $dirptr) {
1180: my $curdir = $startdir.$filecom[0].'/';
1181: my $anchor = $curdir;
1182: $anchor =~ s/\W//g;
1183: #SB $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
1184: $r->print(&Apache::loncommon::start_data_table_row()); # SB: bgcolor suggestion: darkgrey ("LC_info_row"?!?)
1185: # $r->print('<tr class="LC_info_row">');
1186: $r->print($extrafield.'<td class="LC_middle LC_nobreak">');
1187: &begin_form ($r,$curdir);
1188: my $indentm1 = $indent-1;
1189: my $count = 0;
1190: while ($count < $indentm1) {
1191: $r->print ("<img alt=\"\" src=",$iconpath
1192: ,"whitespace_21.gif class='LC_icon' />\n");
1193: $count++;
1194: }
1195: $r->print ('<input type="hidden" name="acts" value="" />');
1196: $r->print ('<a name="'.$anchor.'"></a>');
1197: $r->print ('<a href="#" onClick="document.dirpath'.($dnum-1).'.submit()"><img src="'.$iconpath.
1198: 'arrow.'.($nowOpen ? "open" : "closed" ).'.gif"');
1199: $r->print (' name="'.$msg.'" class="LC_fileicon" /></a>'.
1200: "\n");
1201: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
1202:
1203: my $location = &Apache::loncommon::lonhttpdurl("/adm/lonIcons");
1204: my $icon = "navmap.folder.".($nowOpen ? "open":"closed").'.gif';
1205: $r->print ('<a href="javascript:gothere(\''
1206: .$quotable_curdir.'\')"">'
1207: .'<img class="LC_fileicon" alt="'.&mt('Open Folder').'" src="'.
1208: $location."/".$icon.'" />'.
1209: "\n");
1210: $r->print ("$listname</a></form></td>\n");
1211: # Attributes
1212: my $filelink = $startdir.$filecom[0].'/default';
1213:
1214: if ($hash{'display_attrs_0'} == 1) {
1215: my $title = &Apache::lonnet::gettitle($filelink);
1216: $r->print('<td> '.($title eq '' ? ' ' : $title).
1217: ' </td>'."\n");
1218: }
1219: $r->print('<td class="LC_right"> ',
1220: $filecom[8]," </td>\n")
1221: if $hash{'display_attrs_1'} == 1;
1222: $r->print('<td class="LC_break"> '.
1223: (&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
1224: if $hash{'display_attrs_2'} == 1;
1225: $r->print('<td class="LC_break"> '.
1226: (&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
1227: if $hash{'display_attrs_3'} == 1;
1228:
1229: if ($hash{'display_attrs_4'} == 1) {
1230: my $author = &Apache::lonnet::metadata($filelink,'author');
1231: $r->print('<td> '.($author eq '' ? ' ' : $author).
1232: " </td>\n");
1233: }
1234: if ($hash{'display_attrs_5'} == 1) {
1235: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1236: # $keywords = ' ' if (!$keywords);
1237: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1238: " </td>\n");
1239: }
1240: if ($hash{'display_attrs_6'} == 1) {
1241: my $lang = &Apache::lonnet::metadata($filelink,'language');
1242: $lang = &Apache::loncommon::languagedescription($lang);
1243: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1244: " </td>\n");
1245: }
1246:
1247: if ($hash{'display_attrs_8'} == 1) {
1248: $r->print('<td> </td>');
1249: }
1250: if ($hash{'display_attrs_10'} == 1) {
1251: $r->print('<td> </td>');
1252: }
1253: if ($hash{'display_attrs_7'} == 1) {
1254: $r->print('<td> </td>');
1255: }
1256: if ($hash{'display_attrs_11'} == 1) {
1257: $r->print('<td> </td>');
1258: }
1259: if ($hash{'display_attrs_12'} == 1) {
1260: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1261: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1262: " </td>\n");
1263: }
1264: if ($hash{'display_attrs_13'} == 1) {
1265: my $notes = &Apache::lonnet::metadata($filelink,'notes');
1266: $r->print('<td> '.($notes eq '' ? ' ' : $notes).
1267: " </td>\n");
1268: }
1269:
1270: if ($hash{'display_attrs_14'} == 1) {
1271: my $abstract = &Apache::lonnet::metadata($filelink,'abstract');
1272: $r->print('<td> '.($abstract eq '' ? ' ' : $abstract).
1273: " </td>\n");
1274: }
1275:
1276: if ($hash{'display_attrs_15'} == 1) {
1277: my $gradelevel = &Apache::lonnet::metadata($filelink,'gradelevel');
1278: $r->print('<td> '.($gradelevel eq '' ? ' ' : $gradelevel).
1279: " </td>\n");
1280: }
1281:
1282: if ($hash{'display_attrs_16'} == 1) {
1283: my $standards = &Apache::lonnet::metadata($filelink,'standards');
1284: $r->print('<td> '.($standards eq '' ? ' ' : $standards).
1285: " </td>\n");
1286: }
1287:
1288:
1289: $r->print(&Apache::loncommon::end_data_table_row());
1290: }
1291:
1292: }
1293:
1294: sub coursecontext {
1295: my ($r,$filelink)=@_;
1296: my $filesymb=&Apache::lonnet::symbread($filelink);
1297: if ($filesymb) {
1298: my ($map,$index,$resource)=&Apache::lonnet::decode_symb($filesymb);
1299: $r->print(&mt('Already in this course:<br />[_1] in folder/map [_2].<br />',
1300: &Apache::lonnet::gettitle($resource),
1301: &Apache::lonnet::gettitle($map)));
1302: }
1303: }
1304:
1305: sub showpreview {
1306: my ($filelink)=@_;
1307: if ($filelink=~m-^(/ext/|http://)-) {
1308: return &mt('External Resource, preview not enabled');
1309: }
1310: my ($curfext)=($filelink=~/\.(\w+)$/);
1311: my $output='';
1312: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
1313: if ($embstyle eq 'ssi') {
1314: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
1315: '.tmp';
1316: if ((!$env{'form.updatedisplay'}) &&
1317: (-e $cache)) {
1318: open(FH,$cache);
1319: $output=join("\n",<FH>);
1320: close(FH);
1321: } else {
1322: # In update display mode, remove old cache. This is done to retroactively
1323: # clean up course context renderings.
1324: if (-e $cache) {
1325: unlink($cache);
1326: }
1327: $output=&Apache::lonnet::ssi_body($filelink);
1328: # Is access denied? Don't render, don't store
1329: if ($output=~/LONCAPAACCESSCONTROLERRORSCREEN/s) {
1330: $output='';
1331: # Was this rendered in course content? Don't store
1332: } elsif (!&Apache::lonnet::symbread($filelink)) {
1333: open(FH,">$cache");
1334: print FH $output;
1335: close(FH);
1336: }
1337: }
1338: $output='<span class="LC_fontsize_medium">'.$output.'</span>';
1339: } elsif ($embstyle eq 'img') {
1340: $output='<img alt="'.&mt('Preview').'" src="'.$filelink.'" />';
1341: } elsif ($filelink=~m{^/res/($match_domain)/($match_username)/}) {
1342: $output='<img alt="'.&mt('Preview').'" src="http://'.
1343: &Apache::lonnet::hostname(&Apache::lonnet::homeserver($2,$1)).
1344: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1345: }
1346: return $output;
1347: }
1348:
1349: sub dynmetaprint {
1350: my ($r,$filelink,$item)=@_;
1351: if ($dynhash{$filelink}->{$item}) {
1352: $r->print("\n<br />".$fieldnames{$item}.': '.
1353: &Apache::lonmeta::prettyprint($item,
1354: $dynhash{$filelink}->{$item},
1355: (($env{'form.catalogmode'} ne 'import')?'preview':''),
1356: '',
1357: (($env{'form.catalogmode'} eq 'import')?'document.forms.fileattr':''),1));
1358: }
1359: }
1360:
1361: # ------------------- prints the beginning of a form for directory or file link
1362: sub begin_form {
1363: my ($r,$uri) = @_;
1364: my $anchor = $uri;
1365: $anchor =~ s/\W//g;
1366: $uri=&Apache::loncommon::escape_single($uri);
1367: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1368: '#'.$anchor.
1369: '" onSubmit="return rep_dirpath(\''.$dnum.'\''.
1370: ',document.forms.fileattr.acts.value)" '.
1371: 'enctype="application/x-www-form-urlencoded">'."\n");
1372: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'" />'.
1373: "\n");
1374: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n");
1375: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
1376: $dnum++;
1377: }
1378:
1379: # --------- settings whenever the user causes the indexer window to be launched
1380: sub start_fresh_session {
1381: my ($hash) = @_;
1382: delete $hash->{'form.catalogmode'};
1383: delete $hash->{'form.mode'};
1384: delete $hash->{'form.form'};
1385: delete $hash->{'form.element'};
1386: delete $hash->{'form.omit'};
1387: delete $hash->{'form.only'};
1388: foreach (keys %{$hash}) {
1389: delete $hash->{$_} if (/^(pre_|store)/);
1390: }
1391: }
1392:
1393: # ------------------------------------------------------------------- setvalues
1394: sub setvalues {
1395: # setvalues is used in registerurl to synchronize the database
1396: # hash and environment hashes
1397: my ($H1,$h1key,$H2,$h2key) =@_;
1398: #
1399: if (exists $H2->{$h2key}) {
1400: $H1->{$h1key} = $H2->{$h2key};
1401: } elsif (exists $H1->{$h1key}) {
1402: $H2->{$h2key} = $H1->{$h1key};
1403: }
1404: }
1405:
1406: 1;
1407:
1408: sub cleanup {
1409: if (tied(%hash)){
1410: &Apache::lonnet::logthis('Cleanup indexer: hash');
1411: }
1412: return OK;
1413: }
1414:
1415:
1416:
1417:
1418:
1419: =head1 NAME
1420:
1421: Apache::lonindexer - mod_perl module for cross server filesystem browsing
1422:
1423: =head1 SYNOPSIS
1424:
1425: Invoked by /etc/httpd/conf/srm.conf:
1426:
1427: <LocationMatch "^/res.*/$">
1428: SetHandler perl-script
1429: PerlHandler Apache::lonindexer
1430: </LocationMatch>
1431:
1432: =head1 INTRODUCTION
1433:
1434: This module enables a scheme of browsing across a cross server.
1435:
1436: This is part of the LearningOnline Network with CAPA project
1437: described at http://www.lon-capa.org.
1438:
1439: =head1 BEGIN SUBROUTINE
1440:
1441: This routine is only run once after compilation.
1442:
1443: =over 4
1444:
1445: =item *
1446:
1447: Initializes %language hash table.
1448:
1449: =back
1450:
1451: =head1 HANDLER SUBROUTINE
1452:
1453: This routine is called by Apache and mod_perl.
1454:
1455: =over 4
1456:
1457: =item *
1458:
1459: read in machine configuration variables
1460:
1461: =item *
1462:
1463: see if called from an interactive mode
1464:
1465: =item *
1466:
1467: refresh environment with user database values (in %hash)
1468:
1469: =item *
1470:
1471: define extra fields and buttons in case of special mode
1472:
1473: =item *
1474:
1475: set catalogmodefunctions to have extra needed javascript functionality
1476:
1477: =item *
1478:
1479: print header
1480:
1481: =item *
1482:
1483: evaluate actions from previous page (both cumulatively and chronologically)
1484:
1485: =item *
1486:
1487: output title
1488:
1489: =item *
1490:
1491: get state of file attributes to be showing
1492:
1493: =item *
1494:
1495: output state of file attributes to be showing
1496:
1497: =item *
1498:
1499: output starting row to the indexed file/directory hierarchy
1500:
1501: =item *
1502:
1503: read in what directories have previously been set to "open"
1504:
1505: =item *
1506:
1507: if not at top level, provide an uplink arrow
1508:
1509: =item *
1510:
1511: recursively go through all the directories and output as appropriate
1512:
1513: =item *
1514:
1515: information useful for group import
1516:
1517: =item *
1518:
1519: end the tables
1520:
1521: =item *
1522:
1523: end the output and return
1524:
1525: =back
1526:
1527: =head1 OTHER SUBROUTINES
1528:
1529: =over 4
1530:
1531: =item *
1532:
1533: scanDir - recursive scan of a directory
1534:
1535: =item *
1536:
1537: get_list - get complete matched list based on the uri (returns an array)
1538:
1539: =item *
1540:
1541: match_ext - filters out files based on extensions (returns an array)
1542:
1543: =item *
1544:
1545: display_line - displays one line in appropriate table format
1546:
1547: =item *
1548:
1549: begin_form - prints the beginning of a form for directory or file link
1550:
1551: =item *
1552:
1553: start_fresh_session - settings whenever the user causes the indexer window
1554: to be launched
1555:
1556: =back
1557:
1558: =cut
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