1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.181.4.2 2009/08/13 12:46:29 raeburn Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: ###
29:
30: ###############################################################################
31: ## ##
32: ## ORGANIZATION OF THIS PERL MODULE ##
33: ## ##
34: ## 1. Description of functions ##
35: ## 2. Modules used by this module ##
36: ## 3. Choices for different output views (detailed, summary, xml, etc) ##
37: ## 4. BEGIN block (to be run once after compilation) ##
38: ## 5. Handling routine called via Apache and mod_perl ##
39: ## 6. Other subroutines ##
40: ## ##
41: ###############################################################################
42:
43: package Apache::lonindexer;
44:
45: # ------------------------------------------------- modules used by this module
46: use strict;
47: use Apache::lonnet;
48: use Apache::loncommon();
49: use Apache::lonhtmlcommon();
50: use Apache::lonsequence();
51: use Apache::Constants qw(:common);
52: use Apache::lonmeta;
53: use Apache::File;
54: use Apache::lonlocal;
55: use Apache::lonsource();
56: use Apache::groupsort();
57: use GDBM_File;
58: use LONCAPA qw(:match);
59:
60: # ---------------------------------------- variables used throughout the module
61: my %hash; # global user-specific gdbm file
62: my %dirs; # keys are directories, values are the open/close status
63: my %language; # has the reference information present in language.tab
64: my %dynhash; # hash of hashes for dynamic metadata
65: my %dynread; # hash of directories already read for dynamic metadata
66: my %fieldnames; # Metadata fieldnames
67: # ----- Values which are set by the handler subroutine and are accessible to
68: # ----- other methods.
69: my $extrafield; # default extra table cell
70: my $fnum; # file counter
71: my $dnum; # directory counter
72:
73: # ----- Used to include or exclude files with certain extensions.
74: my @Only = ();
75: my @Omit = ();
76:
77:
78:
79:
80: # ----------------------------- Handling routine called via Apache and mod_perl
81: sub handler {
82: my $r = shift;
83: my $c = $r->connection();
84: &Apache::loncommon::content_type($r,'text/html');
85: &Apache::loncommon::no_cache($r);
86: $r->send_http_header;
87: return OK if $r->header_only;
88: $fnum=0;
89: $dnum=0;
90:
91: # Deal with stupid global variables (is there a way around making
92: # these global to this package? It is just so wrong....)
93: undef (@Only);
94: undef (@Omit);
95: %fieldnames=&Apache::lonmeta::fieldnames();
96:
97: # ------------------------------------- read in machine configuration variables
98: my $iconpath= $r->dir_config('lonIconsURL') . "/";
99: my $domain = $r->dir_config('lonDefDomain');
100: my $role = $r->dir_config('lonRole');
101: my $loadlim = $r->dir_config('lonLoadLim');
102: my $servadm = $r->dir_config('lonAdmEMail');
103: my $sysadm = $r->dir_config('lonSysEMail');
104: my $lonhost = $r->dir_config('lonHostID');
105: my $tabdir = $r->dir_config('lonTabDir');
106:
107: my $fileclr='#ffffe6';
108: my $line;
109: my (@attrchk,@openpath,$typeselect);
110: my $uri=$r->uri;
111:
112: # -------------------------------------- see if called from an interactive mode
113: # Get the parameters from the query string
114: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
115: ['catalogmode','launch','acts','mode','form','element',
116: 'only','omit','titleelement']);
117: #-------------------------------------------------------------------
118: my $closebutton='';
119: my $groupimportbutton='';
120: my $colspan='';
121:
122: $extrafield='';
123: my $diropendb =
124: "/home/httpd/perl/tmp/$env{'user.domain'}_$env{'user.name'}_sel_res.db";
125: %hash = ();
126: {
127: my %dbfile;
128: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_WRITER(),0640)) {
129: if ($env{'form.launch'} eq '1') {
130: &start_fresh_session(\%dbfile);
131: }
132: while(my($key,$value)=each(%dbfile)) {
133: $hash{$key}=$value;
134: }
135: untie(%dbfile);
136: }
137: }
138: # - Evaluate actions from previous page (both cumulatively and chronologically)
139: if ($env{'form.catalogmode'} eq 'import' || $hash{'form.catalogmode'} eq 'import') {
140: &Apache::groupsort::update_actions_hash(\%hash);
141: }
142:
143: {
144: #Hijack lonindexer to verify a title and be close down.
145: if ($env{'form.launch'} eq '2') {
146: &Apache::loncommon::content_type($r,'text/html');
147: my $extra='';
148: if (defined($env{'form.titleelement'}) &&
149: $env{'form.titleelement'} ne '') {
150: my $verify_title = &Apache::lonnet::gettitle($env{'form.acts'});
151: # &Apache::lonnet::logthis("Hrrm $env{'form.acts'} -- $verify_title");
152: $verify_title=~s/'/\\'/g;
153: $extra='window.opener.document.forms["'.$env{'form.form'}.'"].elements["'.$env{'form.titleelement'}.'"].value=\''.$verify_title.'\';';
154: }
155: my $js = <<ENDSUBM;
156: <script type="text/javascript">
157: function load() {
158: window.opener.document.forms["$env{'form.form'}"]
159: .elements["$env{'form.element'}"]
160: .value='$env{'form.acts'}';
161: $extra
162: window.close();
163: }
164: </script>
165: ENDSUBM
166: $r->print(&Apache::loncommon::start_page(undef,$js,
167: {'only_body' =>1,
168: 'add_entries' =>
169: {'onload' => "load();"},}
170: ).
171: &Apache::loncommon::end_page());
172: return OK;
173: }
174:
175: # -------------------- refresh environment with user database values (in %hash)
176: &setvalues(\%hash,'form.catalogmode',\%env,'form.catalogmode' );
177:
178: # --------------------- define extra fields and buttons in case of special mode
179: if ($env{'form.catalogmode'} eq 'interactive') {
180: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
181: '<img alt="" src="'.$iconpath.'whitespace1.gif"'.
182: ' class="LC_icon" /></td>';
183: $colspan=" colspan='2' ";
184: my $cl=&mt('Close');
185: $closebutton=<<END;
186: <input type="button" name="close" value='$cl' onClick="self.close()" />
187: END
188: }
189: elsif ($env{'form.catalogmode'} eq 'import') {
190: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
191: '<img alt="" src="'.$iconpath.'whitespace1.gif"'.
192: ' class="LC_icon" /></td>';
193: $colspan=" colspan='2' ";
194: my $cl=&mt('Close');
195: my $gi=&mt('Import');
196: $closebutton=<<END;
197: <input type="button" name="close" value='$cl' onClick="self.close()" />
198: END
199: $groupimportbutton=<<END;
200: <input type="button" name="groupimport" value='$gi'
201: onClick="javascript:select_group()" />
202: END
203: }
204: # Additions made by Matthew to make the browser a little easier to deal
205: # with in the future.
206: #
207: # $mode (at this time) indicates if we are in edit mode.
208: # $form is the name of the form that the URL is placed when the
209: # selection is made.
210: # $element is the name of the element in $formname which receives
211: # the URL.
212: #&Apache::lonxml::debug('Checking mode, form, element');
213: &setvalues(\%hash,'form.mode' ,\%env,'form.mode' );
214: &setvalues(\%hash,'form.form' ,\%env,'form.form' );
215: &setvalues(\%hash,'form.element' ,\%env,'form.element');
216: &setvalues(\%hash,'form.titleelement',\%env,'form.titleelement');
217: &setvalues(\%hash,'form.only' ,\%env,'form.only' );
218: &setvalues(\%hash,'form.omit' ,\%env,'form.omit' );
219:
220: # Deal with 'omit' and 'only'
221: if (exists $env{'form.omit'}) {
222: @Omit = split(',',$env{'form.omit'});
223: }
224: if (exists $env{'form.only'}) {
225: @Only = split(',',$env{'form.only'});
226: }
227:
228: my $mode = $env{'form.mode'};
229: my ($form,$element,$titleelement);
230: if ($mode eq 'edit' || $mode eq 'parmset') {
231: $form = $env{'form.form'};
232: $element = $env{'form.element'};
233: $titleelement = $env{'form.titleelement'};
234: }
235: #&Apache::lonxml::debug("mode=$mode form=$form element=$element titleelement=$titleelement");
236: # ------ set catalogmodefunctions to have extra needed javascript functionality
237: my $catalogmodefunctions='';
238: if ($env{'form.catalogmode'} eq 'interactive' or
239: $env{'form.catalogmode'} eq 'import') {
240: # The if statement below sets us up to use the old version
241: # by default (ie. if $mode is undefined). This is the easy
242: # way out. Hopefully in the future I'll find a way to get
243: # the calls dealt with in a more comprehensive manner.
244:
245: #
246: # There is now also mode "simple", which is for the simple version of the rat
247: #
248: #
249: if (!defined($mode) || ($mode ne 'edit' && $mode ne 'parmset')) {
250: my $location = "/adm/groupsort?&inhibitmenu=yes&catalogmode=import&";
251: $location .= "mode=".$mode."&";
252: $location .= "acts=";
253: $catalogmodefunctions=<<"END";
254: function select_data(url) {
255: changeURL(url);
256: self.close();
257: }
258: function select_group() {
259: window.location="$location"+document.forms.fileattr.acts.value;
260: }
261: function changeURL(val) {
262: if (opener.inf) {
263: if (opener.inf.document.forms.resinfo.elements.u) {
264: opener.inf.document.forms.resinfo.elements.u.value=val;
265: }
266: }
267: }
268: END
269: } elsif ($mode eq 'edit') { # we are in 'edit' mode
270: my $location = "/adm/groupsort?catalogmode=interactive&";
271: $location .= "form=$form&element=$element&mode=edit&acts=";
272: $catalogmodefunctions=<<END;
273: // mode = $mode
274: function select_data(url) {
275: var location = "/res/?launch=2&form=$form&element=$element&titleelement=$titleelement&acts=" + url;
276: window.location=location;
277: if (window.opener.document.forms["$form"].elements["$element"].value != url) {
278: window.opener.unClean();
279: }
280: }
281: function select_group() {
282: window.location="$location"+document.forms.fileattr.acts.value;
283: }
284:
285: function changeURL(val) {
286: if (window.opener.document) {
287: window.opener.document.forms["$form"].elements["$element"].value=val;
288: } else {
289: alert("The file you selected is: "+val);
290: }
291: }
292: END
293: if (!$titleelement) {
294: $catalogmodefunctions.='function changeTitle(val) {}';
295: } else {
296: $catalogmodefunctions.=<<END;
297: function changeTitle(val) {
298: if (window.opener.document) {
299: window.opener.document.forms["$form"].elements["$titleelement"].value=val;
300: } else {
301: alert("The title of the file you selected is: "+val);
302: }
303: }
304: END
305: }
306: } elsif ($mode eq 'parmset') {
307: my $location = "/adm/groupsort?catalogmode=interactive&";
308: $location .= "form=$form&element=$element&mode=parmset&acts=";
309: $catalogmodefunctions=<<END;
310: // mode = $mode
311: function select_data(url) {
312: changeURL(url);
313: self.close();
314: }
315:
316: function select_group() {
317: window.location="$location"+document.forms.fileattr.acts.value;
318: }
319:
320: function changeURL(val) {
321: if (window.opener.document) {
322: var elementname = "$element"+"_value";
323: var checkboxname = "$element"+"_setparmval";
324: window.opener.document.forms["$form"].elements[elementname].value=val;
325: window.opener.document.forms["$form"].elements[checkboxname].checked=true;
326: } else {
327: alert("The file you selected is: "+val);
328: }
329: }
330:
331: END
332: }
333: }
334: $catalogmodefunctions.=<<END;
335: var acts='';
336: function rep_dirpath(suffix,val) {
337: eval("document.forms.dirpath"+suffix+".acts.value=val");
338: }
339: END
340: if ($env{'form.catalogmode'} eq 'import') {
341: $catalogmodefunctions.=<<END;
342: function queue(val) {
343: if (eval("document.forms."+val+".filelink.checked")) {
344: var l=val.length;
345: var v=val.substring(4,l);
346: document.forms.fileattr.acts.value+='1a'+v+'b';
347: }
348: else {
349: var l=val.length;
350: var v=val.substring(4,l);
351: document.forms.fileattr.acts.value+='0a'+v+'b';
352: }
353: }
354: END
355: }
356:
357: my $inhibit_menu = "+'&".&Apache::loncommon::inhibit_menu_check()."'";
358: # ---------------------------------------------------------------- Print Header
359:
360: my $js = <<"ENDHEADER";
361: <script type="text/javascript">
362: $catalogmodefunctions;
363: function update_only(field) {
364: alert(field.name);
365: }
366: function checkAll() {
367: var numForms = document.forms.length;
368: for (i=0;i<numForms;i++) {
369: var numElements = document.forms[i].elements.length;
370: for (j=0;j<numElements;j++){
371: var fieldName = document.forms[i].elements[j].name;
372: if (fieldName == 'filelink') {
373: document.forms[i].elements[j].checked = true;
374: queue(document.forms[i].name);
375: }
376: }
377: }
378: }
379: function uncheckAll() {
380: var numForms = document.forms.length;
381: for (i=0;i<numForms;i++) {
382: var numElements = document.forms[i].elements.length;
383: for (j=0;j<numElements;j++){
384: var fieldName = document.forms[i].elements[j].name;
385: if (fieldName == 'filelink') {
386: document.forms[i].elements[j].checked = false;
387: queue(document.forms[i].name);
388: }
389: }
390: }
391: }
392: function openWindow(url, wdwName, w, h, toolbar,scrollbar,locationbar) {
393: var xpos = (screen.width-w)/2;
394: xpos = (xpos < 0) ? '0' : xpos;
395: var ypos = (screen.height-h)/2-30;
396: ypos = (ypos < 0) ? '0' : ypos;
397: var options = "width=" + w + ",height=" + h + ",screenx="+xpos+",screeny="+ypos+",";
398: options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
399: options += "menubar=no,toolbar="+toolbar+",location="+locationbar+",directories=no";
400: var newWin = window.open(url, wdwName, options);
401: newWin.focus();
402: }
403: function gothere(val) {
404: window.location=val+'?acts='+document.forms.fileattr.acts.value$inhibit_menu;
405: }
406: </script>
407: ENDHEADER
408:
409: my ($headerdom)=($uri=~m{^/res/($match_domain)/});
410: my %args = (
411: 'domain' => $headerdom,
412: );
413: if ($env{'form.catalogmode'}) {
414: # "Popup mode"
415: $args{'only_body'} = 1;
416: }
417: $r->print(&Apache::loncommon::start_page('Browse Resources',$js,\%args));
418: # ---------------------------------- get state of file types to be showing
419: if ($env{'form.only'}) {
420: $typeselect = $env{'form.only'};
421: } else {
422: $typeselect = '';
423: }
424:
425: # ---------------------------------- get state of file attributes to be showing
426: if ($env{'form.attrs'}) {
427: for (my $i=0; $i<=16; $i++) {
428: delete $hash{'display_attrs_'.$i};
429: if ($env{'form.attr'.$i} == 1) {
430: $attrchk[$i] = 'checked';
431: $hash{'display_attrs_'.$i} = 1;
432: }
433: }
434: } else {
435: for (my $i=0; $i<=16; $i++) {
436: $attrchk[$i] = 'checked' if $hash{'display_attrs_'.$i} == 1;
437: }
438: }
439:
440: # ------------------------------- output state of file attributes to be showing
441: # All versions has to the last item
442: # since it does not take an extra col
443: my %lt=&Apache::lonlocal::texthash(
444: 'ti' => 'Title',
445: 'si' => 'Size',
446: 'la' => 'Last access',
447: 'lm' => 'Last modified',
448: 'st' => 'Statistics',
449: 'au' => 'Author',
450: 'kw' => 'Keywords',
451: 'sb' => 'Subject',
452: 'nt' => 'Notes',
453: 'ab' => 'Abstract',
454: 'ln' => 'Language',
455: 'gl' => 'Grade Level',
456: 'sd' => 'Standards',
457: 'sa' => 'Source Available',
458: 'sr' => 'Show resource',
459: 'li' => 'Linked/Related Resources',
460: 'av' => 'All versions',
461: 'ud' => 'Update Display',
462: 'pr' => 'Problems',
463: 'gr' => 'Graphics',
464: 'at' => 'All types',
465: 'hd' => 'Display Options',
466: );
467: $r->print(<<END);
468: <fieldset>
469: <legend>$lt{'hd'}</legend>
470: <form method="post" name="fileattr" action="$uri"
471: enctype="application/x-www-form-urlencoded">
472: <label><input type="checkbox" name="attr9" value="1" $attrchk[9] onClick="this.form.submit();" /> $lt{'av'}</label>
473: <table border="0">
474: <tr>
475: <td><label><input type="checkbox" name="attr0" value="1" $attrchk[0] onClick="this.form.submit();" /> $lt{'ti'}</label></td>
476: <td><label><input type="checkbox" name="attr4" value="1" $attrchk[4] onClick="this.form.submit();" /> $lt{'au'}</label></td>
477: <td><label><input type="checkbox" name="attr5" value="1" $attrchk[5] onClick="this.form.submit();" /> $lt{'kw'}</label></td>
478: <td><label><input type="checkbox" name="attr6" value="1" $attrchk[6] onClick="this.form.submit();" /> $lt{'ln'}</label></td>
479: <td><label><input type="checkbox" name="attr13" value="1" $attrchk[13] onClick="this.form.submit();" /> $lt{'nt'}</label></td>
480: <td><label><input type="checkbox" name="attr16" value="1" $attrchk[16] onClick="this.form.submit();" /> $lt{'sd'}</label></td>
481: </tr>
482: <tr>
483: <td><label><input type="checkbox" name="attr1" value="1" $attrchk[1] onClick="this.form.submit();" /> $lt{'si'}</label></td>
484: <td><label><input type="checkbox" name="attr2" value="1" $attrchk[2] onClick="this.form.submit();" /> $lt{'la'}</label></td>
485: <td><label><input type="checkbox" name="attr3" value="1" $attrchk[3] onClick="this.form.submit();" /> $lt{'lm'}</label></td>
486: <td><label><input type="checkbox" name="attr10" value="1" $attrchk[10] onClick="this.form.submit();" /> $lt{'sa'}</label></td>
487: <td><label><input type="checkbox" name="attr14" value="1" $attrchk[14] onClick="this.form.submit();" /> $lt{'ab'}</label></td>
488: <td> </td>
489: </tr>
490: <tr>
491: <td><label><input type="checkbox" name="attr8" value="1" $attrchk[8] onClick="this.form.submit();" /> $lt{'st'}</label></td>
492: <td><label><input type="checkbox" name="attr11" value="1" $attrchk[11] onClick="this.form.submit();" /> $lt{'li'}</label></td>
493: <td><label><input type="checkbox" name="attr7" value="1" $attrchk[7] onClick="this.form.submit();" /> $lt{'sr'}</label></td>
494: <td><label><input type="checkbox" name="attr12" value="1" $attrchk[12] onClick="this.form.submit();" /> $lt{'sb'}</label></td>
495: <td><label><input type="checkbox" name="attr15" value="1" $attrchk[15] onClick="this.form.submit();" /> $lt{'gl'}</label></td>
496: <td> </td>
497: </tr>
498: </table>
499: <input type="hidden" name="attrs" value="1" />
500: END
501: my @file_categories = &Apache::loncommon::filecategories();
502: my %select_file_categories;
503: my @select_form_order = ('');
504: $select_file_categories{''} = &mt('All file types');
505: foreach my $cat (@file_categories) {
506: my $types = join(",",&Apache::loncommon::filecategorytypes($cat));
507: $select_file_categories{$types} = $cat;
508: push(@select_form_order,$types);
509: }
510: $select_file_categories{'select_form_order'} = \@select_form_order;
511: my $type_element=
512: &Apache::loncommon::select_form($typeselect,'only',
513: %select_file_categories);
514: $type_element = '<label>'.&mt('File Type Displayed: [_1]',
515: $type_element).'</label>';
516: $r->print($type_element
517: .'</fieldset>');
518: $r->print(<<END);
519: <br />
520: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
521: <input type="hidden" name="acts" value="" />
522: $closebutton $groupimportbutton
523: END
524: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
525:
526: # -------------- Filter out sequence containment in crumbs and "recent folders"
527: my $storeuri=$uri;
528: $storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
529: $storeuri=~s/\/+/\//g;
530: # ---------------------------------------------------------------- Bread crumbs
531: $r->print(&Apache::lonhtmlcommon::crumbs($storeuri,'','',
532: (($env{'form.catalogmode'} eq 'import')?
533: 'document.forms.fileattr':'')).
534: &Apache::lonhtmlcommon::select_recent('residx','resrecent',
535: '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();'));
536: # -------------------------------------------------------- Resource Home Button
537: my $reshome=$env{'course.'.$env{'request.course.id'}.'.reshome'};
538: if ($reshome) {
539: $r->print("<font size='+2'><a href='");
540: if ($env{'form.catalogmode'} eq 'import') {
541: $r->print('javascript:document.forms.fileattr.action="'.&Apache::loncommon::inhibit_menu_check($reshome).'";document.forms.fileattr.submit();');
542: } else {
543: $r->print($reshome);
544: }
545: $r->print("'>".&mt('Home').'</a></font>');
546: }
547: $r->print('</form>');
548: # ------------------------------------------------------ Remember where we were
549: &Apache::loncommon::storeresurl($storeuri);
550: &Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
551: # -------------------------------------------------- Check All and Uncheck all
552: if ($env{'form.catalogmode'} eq 'import') {
553: $r->print('<br /><input type="button" value="'.&mt("Check All").'" id="checkallbutton" onClick="javascript:checkAll()" />');
554: $r->print('<input type="button" value="'.&mt("Uncheck All").'" id="uncheckallbutton" onClick="javascript:uncheckAll()" />');
555: }
556: # ----------------- output starting row to the indexed file/directory hierarchy
557: my $titleclr="#ddffff";
558: #$r->print(&initdebug());
559: #$r->print(&writedebug("Omit:@Omit")) if (@Omit);
560: #$r->print(&writedebug("Only:@Only")) if (@Only);
561: $r->print('<table width="100%" border="0"><tr><td bgcolor="#777777">'."\n");
562: $r->print('<table width="100%" border="0"><tr bgcolor="'.$titleclr.'">'."\n");
563: $r->print("<td $colspan><b>".&mt('Name')."</b></td>\n");
564: $r->print("<td><b>".&mt('Title')."</b></td>\n")
565: if ($hash{'display_attrs_0'} == 1);
566: $r->print("<td align=right><b>".&mt("Size")." (".&mt("bytes").") ".
567: "</b></td>\n") if ($hash{'display_attrs_1'} == 1);
568: $r->print("<td><b>".&mt("Last accessed")."</b></td>\n")
569: if ($hash{'display_attrs_2'} == 1);
570: $r->print("<td><b>".&mt("Last modified")."</b></td>\n")
571: if ($hash{'display_attrs_3'} == 1);
572: $r->print("<td><b>".&mt("Author(s)")."</b></td>\n")
573: if ($hash{'display_attrs_4'} == 1);
574: $r->print("<td><b>".&mt("Keywords")."</b></td>\n")
575: if ($hash{'display_attrs_5'} == 1);
576: $r->print("<td><b>".&mt("Language")."</b></td>\n")
577: if ($hash{'display_attrs_6'} == 1);
578: $r->print("<td><b>".&mt("Usage Statistics")." <br />(".
579: &mt("Courses/Network Hits").")</b> ".&mt('updated periodically')."</td>\n")
580: if ($hash{'display_attrs_8'} == 1);
581: $r->print("<td><b>".&mt("Source Available")."</b></td>\n")
582: if ($hash{'display_attrs_10'} == 1);
583: $r->print("<td><b>".&mt("Linked/Related Resources")."</b></td>\n")
584: if ($hash{'display_attrs_11'} == 1);
585: $r->print("<td><b>".&mt("Resource")."</b></td>\n")
586: if ($hash{'display_attrs_7'} == 1);
587: $r->print("<th>".&mt("Subject")."</th>\n")
588: if ($hash{'display_attrs_12'} == 1);
589: $r->print("<th>".&mt("Notes")."</th>\n")
590: if ($hash{'display_attrs_13'} == 1);
591: $r->print("<th>".&mt("Abstract")."</th>\n")
592: if ($hash{'display_attrs_14'} == 1);
593: $r->print("<th>".&mt("Grade Level")."</th>\n")
594: if ($hash{'display_attrs_15'} == 1);
595: $r->print("<th>".&mt("Standards")."</th>\n")
596: if ($hash{'display_attrs_16'} == 1);
597: $r->print('</tr>');
598:
599: # ----------------- read in what directories have previously been set to "open"
600: foreach (keys %hash) {
601: if ($_ =~ /^diropen_status_/) {
602: my $key = $_;
603: $key =~ s/^diropen_status_//;
604: $dirs{$key} = $hash{$_};
605: }
606: }
607:
608: if ($env{'form.openuri'}) { # take care of review and refresh options
609: my $uri=$env{'form.openuri'};
610: if (exists($hash{'diropen_status_'.$uri})) {
611: my $cursta = $hash{'diropen_status_'.$uri};
612: $dirs{$uri} = 'open';
613: $hash{'diropen_status_'.$uri} = 'open';
614: if ($cursta eq 'open') {
615: $dirs{$uri} = 'closed';
616: $hash{'diropen_status_'.$uri} = 'closed';
617: }
618: } else {
619: $hash{'diropen_status_'.$uri} = 'open';
620: $dirs{$uri} = 'open';
621: }
622: }
623:
624: my $toplevel;
625: my $indent = 0;
626: $uri = $uri.'/' if $uri !~ /.*\/$/;
627:
628: if ($env{'form.dirPointer'} ne 'on') {
629: $hash{'top.level'} = $uri;
630: $toplevel = $uri;
631: } else {
632: $toplevel = $hash{'top.level'};
633: }
634:
635: # -------------------------------- if not at top level, provide an uplink arrow
636: if ($toplevel ne '/res/'){
637: my (@uri_com) = split(/\//,$uri);
638: pop @uri_com;
639: my $upone = join('/',@uri_com);
640: my @list = qw (0);
641: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
642: $indent = 1;
643: }
644:
645: # -------- recursively go through all the directories and output as appropriate
646: &scanDir ($r,$toplevel,$indent,\%hash);
647:
648:
649: # -------------------------------------------------------------- end the tables
650: $r->print('</table>');
651: # ---------------------------- embed hidden information useful for group import
652: $r->print("<form name='fnum' action=''>");
653: $r->print("<input type='hidden' name='fnum' value='$fnum' /></form>");
654: # -------------------------------------------------------------- end the tables
655: $r->print('</td></tr></table>');
656:
657: # --------------------------------------------------- end the output and return
658: $r->print(&Apache::loncommon::end_page()."\n");
659: }
660: if(! $c->aborted()) {
661: # write back into the temporary file
662: my %dbfile;
663: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
664: while (my($key,$value) = each(%hash)) {
665: $dbfile{$key}=$value;
666: }
667: untie(%dbfile);
668: }
669: }
670:
671: return OK;
672: }
673:
674: # ----------------------------------------------- recursive scan of a directory
675: sub scanDir {
676: my ($r,$startdir,$indent,$hashref)=@_;
677: my $c = $r->connection();
678: my ($compuri,$curdir);
679: my $dirptr=16384;
680: my $obs;
681: $indent++;
682: my %dupdirs = %dirs;
683: my @list=&get_list($r,$startdir);
684: foreach my $line (@list) {
685: return if ($c->aborted());
686: #This is a kludge, sorry aboot this
687: my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
688: next if($strip =~ /.*\.meta$/ | $obs eq '1');
689: my (@fileparts) = split(/\./,$strip);
690: if ($hash{'display_attrs_9'} != 1) {
691: # if not all versions to be shown
692: if (scalar(@fileparts) >= 3) {
693: my $fext = pop @fileparts;
694: my $ov = pop @fileparts;
695: my $fname = join ('.',@fileparts,$fext);
696: next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
697: }
698: }
699:
700: if ($dom eq 'domain') {
701: # dom list has full path /res/<domain name>/ already
702: $curdir='';
703: $compuri = (split(/\&/,$line))[0];
704: } else {
705: # user, dir & file have name only, i.e., w/o path
706: $compuri = join('',$startdir,$strip,'/');
707: $curdir = $startdir;
708: }
709: my $diropen = 'closed';
710: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
711: while (my ($key,$val)= each %dupdirs) {
712: if ($key eq $compuri and $val eq "open") {
713: $diropen = "opened";
714: delete($dupdirs{$key});
715: delete($dirs{$key});
716: }
717: }
718: }
719: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
720: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
721: }
722: $indent--;
723: }
724:
725: # --------------- get complete matched list based on the uri (returns an array)
726: sub get_list {
727: my ($r,$uri)=@_;
728: my @list=();
729: (my $luri = $uri) =~ s/\//_/g;
730: if ($env{'form.updatedisplay'}) {
731: foreach (keys %hash) {
732: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
733: delete $hash{$_} if ($_ =~ /^dirlist_timestamp_files_/);
734: }
735: }
736:
737: if (defined($hash{'dirlist_files_'.$luri}) &&
738: $hash{'dirlist_timestamp_files_'.$luri}+600 > (time)) {
739: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
740: } elsif ($uri=~/\.(page|sequence)\/$/) {
741: # is a page or a sequence
742: $uri=~s/\/$//;
743: $uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
744: $uri=~s/\/+/\//g;
745: foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
746: my @ratpart=split(/\:/,$_);
747: push(@list,&LONCAPA::map::qtescape($ratpart[1]));
748: }
749: $hash{'dirlist_files_'.$luri} = join("\n",@list);
750: } else {
751: # is really a directory
752: @list = &Apache::lonnet::dirlist($uri);
753: $hash{'dirlist_files_'.$luri} = join("\n",@list);
754: $hash{'dirlist_timestamp_files_'.$luri} = time;
755: }
756: return @list=&match_ext($r,@list);
757: }
758:
759: sub dynmetaread {
760: my $uri=shift;
761: if (($hash{'display_attrs_8'}==1) || ($hash{'display_attrs_11'}==1)) {
762: # We don't want the filename
763: $uri=~s/\/[^\/]+$//;
764: # Did we already see this?
765: my $builddir=$uri;
766: while ($builddir) {
767: if ($dynread{$builddir}) {
768: return 0;
769: }
770: $builddir=~s/\/[^\/]+$//;
771: }
772: # Actually get the data
773: %dynhash=
774: (%dynhash,&Apache::lonmeta::get_dynamic_metadata_from_sql($uri.'/'));
775: # Remember that we got it
776: $dynread{$uri}=1;
777: }
778: }
779:
780: sub initdebug {
781: my $start_page=
782: &Apache::loncommon::start_page('Debug',undef,
783: {'only_body' => 1,});
784: $start_page =~ s/\n/ /g;
785: return <<ENDJS;
786: <script type="text/javascript">
787: var debugging = true;
788: if (debugging) {
789: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
790: }
791:
792: function output(text) {
793: if (debugging) {
794: debuggingWindow.document.writeln(text);
795: }
796: }
797: output('$start_page<pre>');
798: </script>
799: ENDJS
800: }
801:
802: sub writedebug {
803: my ($text) = @_;
804: return "<script type=\"text/javascript\">output('$text');</script>";
805: }
806:
807: # -------------------- filters out files based on extensions (returns an array)
808: sub match_ext {
809: my ($r,@packlist)=@_;
810: my @trimlist;
811: my $nextline;
812: my @fileext;
813: my $dirptr=16384;
814:
815: foreach my $line (@packlist) {
816: chomp $line;
817: $line =~ s/^\/home\/httpd\/html//;
818: my @unpackline = split (/\&/,$line);
819: next if ($unpackline[0] eq '.');
820: next if ($unpackline[0] eq '..');
821: my @filecom = split (/\./,$unpackline[0]);
822: my $fext = pop(@filecom);
823: my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
824: if ($fnptr == 0 and $unpackline[3] ne "") {
825: my $embstyle = &Apache::loncommon::fileembstyle($fext);
826: push @trimlist,$line if (defined($embstyle) &&
827: ($embstyle ne 'hdn' or $fext eq 'meta'));
828: } else {
829: push @trimlist,$line;
830: }
831: }
832: @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
833: return @trimlist;
834: }
835:
836: # ------------------------------- displays one line in appropriate table format
837: sub display_line {
838: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
839: my (@pathfn, $fndir);
840: # there could be relative paths (files actually belonging into this directory)
841: # or absolute paths (for example, from sequences)
842: my $absolute;
843: my $pathprefix;
844: if ($line=~m|^/res/| && $startdir ne '') {
845: $absolute=1;
846: $pathprefix='';
847: } else {
848: $absolute=0;
849: $pathprefix=$startdir;
850: }
851: my $dirptr=16384;
852: my $fileclr="#ffffe6";
853: my $iconpath= $r->dir_config('lonIconsURL') . '/';
854:
855: my @filecom = split (/\&/,$line);
856: my @pathcom = split (/\//,$filecom[0]);
857: my $listname = $pathcom[scalar(@pathcom)-1];
858: my $fnptr = $filecom[3]&$dirptr;
859: my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
860: $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
861:
862: my $tabtag='</td>';
863: my $i=0;
864: while ($i<=16) {
865: $tabtag=join('',$tabtag,"<td> </td>")
866: if ($i != 9 &&
867: $hash{'display_attrs_'.$i} == 1);
868: $i++;
869: }
870: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
871:
872: # display uplink arrow
873: if ($filecom[1] eq 'viewOneUp') {
874: my $updir=$startdir;
875: # -------------- Filter out sequence containment in crumbs and "recent folders"
876: $updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
877: $updir=~s/\/+/\//g;
878:
879: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$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: $r->print ('<input src="'.$iconpath.'arrow_up.gif"');
892: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
893: "\n");
894: $r->print(&mt("Up")."</form>$tabtag</tr>\n");
895: return OK;
896: }
897: # Do we have permission to look at this?
898:
899: if($filecom[15] ne '1') { return OK if (!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])); }
900:
901: # make absolute links appear on different background
902: if ($absolute) { $fileclr='#ccdd99'; }
903:
904: # display domain
905: if ($filecom[1] eq 'domain') {
906: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n")
907: if ($env{'form.dirPointer'} eq "on");
908: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
909: $r->print("<td>");
910: &begin_form ($r,$filecom[0]);
911: my $anchor = $filecom[0];
912: $anchor =~ s/\W//g;
913: $r->print ('<a name="'.$anchor.'"></a>');
914: $r->print ('<input type="hidden" name="acts" value="" />');
915: $r->print ('<input src="'.$iconpath.'folder_pointer_'.
916: $diropen.'.gif"');
917: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
918: "\n");
919: my $quotable_filecom = &Apache::loncommon::escape_single($filecom[0]);
920: $r->print ('<a href="javascript:gothere(\''.$quotable_filecom.
921: '\')"><img alt="" src="'.$iconpath.'server.gif"');
922: $r->print (' class="LC_icon" /></a>'."\n");
923: $r->print (&mt("Domain")." - $listname ");
924: if (&Apache::lonnet::domain($listname,'description')) {
925: $r->print("(".&Apache::lonnet::domain($listname,'description').
926: ")");
927: }
928: $r->print ("</form>$tabtag</tr>\n");
929: return OK;
930:
931: # display user directory
932: }
933: if ($filecom[1] eq 'user') {
934: # $r->print("<tr valign=$valign bgcolor=\"$fileclr\">$extrafield");
935: my $curdir = $startdir.$filecom[0].'/';
936: my $anchor = $curdir;
937: $anchor =~ s/\W//g;
938: $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
939: &begin_form ($r,$curdir);
940: $r->print ('<a name="'.$anchor.'"></a><img alt="" src="'.$iconpath.
941: 'whitespace1.gif" class="LC_icon" />'."\n");
942: $r->print ('<input type="hidden" name="acts" value="" />');
943: $r->print ('<input src="'.$iconpath.'folder_pointer_'.$diropen.
944: '.gif"');
945: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
946: "\n");
947: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
948: $r->print ('<a href="javascript:gothere(\''.$quotable_curdir
949: .'\')"><img alt="'.$msg.'" src="'.
950: $iconpath.'quill.gif" class="LC_indexer_icon" /></a>');
951: my $domain=(split(m|/|,$startdir))[2];
952: my $plainname=&Apache::loncommon::plainname($listname,$domain);
953: $r->print ($listname);
954: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
955: $r->print ('</form>'.$tabtag.'</tr>'."\n");
956: return OK;
957: }
958:
959: # display file
960: if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
961: my $title;
962: my $filelink = $pathprefix.$filecom[0];
963: if ($hash{'display_attrs_0'} == 1) {
964: $title = &Apache::lonnet::gettitle($filelink);
965: }
966: my @file_ext = split (/\./,$listname);
967: my $curfext = $file_ext[-1];
968: if (@Omit) {
969: foreach (@Omit) { return OK if (lc($curfext) eq $_); }
970: }
971: if (@Only) {
972: my $skip = 1;
973: foreach (@Only) { $skip = 0 if (lc($curfext) eq $_); }
974: return OK if ($skip > 0);
975: }
976: # Set the icon for the file
977: my $iconname = &Apache::loncommon::icon($listname);
978: $r->print('<tr valign="'.$valign.'" bgcolor="'.$fileclr.'">'.
979: '<td valign="top"><span class="LC_nobreak">');
980:
981: if ($env{'form.catalogmode'} eq 'interactive') {
982: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
983: $r->print("<a href=\"javascript:select_data(\'",
984: $quotable_filelink,"')\">");
985: $r->print("<img alt=\"\" src='",$iconpath,"select.gif' class='LC_icon' /></a>".
986: "\n");
987: $r->print('</span></td><td valign="top"><span class="LC_nobreak">');
988: } elsif ($env{'form.catalogmode'} eq 'import') {
989: $r->print("<form name='form$fnum' action=''>\n");
990: $r->print("<input type='checkbox' name='filelink"."' ".
991: "value='$filelink' onClick='".
992: "javascript:queue(\"form$fnum\")' ");
993: if ($hash{'store_'.$filelink}) {
994: $r->print("checked");
995: }
996: $r->print(" />\n");
997: $r->print('</form></span></td><td valign="top"><span class="LC_nobreak">');
998: $hash{"pre_${fnum}_link"}=$filelink;
999: $hash{"pre_${fnum}_title"}=$title;
1000: if (!$hash{"pre_${fnum}_title"}) {
1001: $hash{"pre_${fnum}_title"} = 'Not_retrieved';
1002: }
1003: $fnum++;
1004: }
1005: # Form to open or close sequences
1006: if ($filelink=~/\.(page|sequence)$/) {
1007: my $curdir = $startdir.$filecom[0].'/';
1008: &begin_form($r,$curdir);
1009: $indent--;
1010: }
1011: # General indentation
1012: if ($indent > 0 and $indent < 16) {
1013: $r->print("<img alt=\"\" src='",$iconpath,"whitespace",$indent,
1014: ".gif' class='LC_icon' />\n");
1015: } elsif ($indent >0) {
1016: my $ten = int($indent/10.);
1017: my $rem = $indent%10.0;
1018: my $count = 0;
1019: while ($count < $ten) {
1020: $r->print("<img alt=\"\" src=".$iconpath.
1021: "whitespace10.gif class='LC_icon' />\n");
1022: $count++;
1023: }
1024: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
1025: ".gif class='LC_icon' />\n") if $rem > 0;
1026: }
1027: # Sequence open/close icon
1028: if ($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><input src="'.$iconpath.
1034: 'folder_pointer_'.$diropen.'.gif"');
1035: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
1036: "\n");
1037: }
1038: # Filetype icons
1039: $r->print("<img alt=\"\" src='$iconname' class='LC_icon' />\n");
1040: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
1041:
1042: $r->print (" <a href=\"javascript:openWindow('".$quotable_filelink.
1043: "?inhibitmenu=yes','previewfile','450','500','no','yes','yes');\"".
1044: " target=\"_self\">$listname</a> ");
1045: $quotable_filelink = &Apache::loncommon::escape_single($filelink.'.meta');
1046: &Apache::loncommon::inhibit_menu_check(\$quotable_filelink);
1047: $r->print (" (<a href=\"javascript:openWindow('".$quotable_filelink.
1048: "?inhibitmenu=yes','metadatafile','500','550','no','yes','no');\" ".
1049: " target=\"_self\">".&mt('metadata')."</a>) ");
1050: # Close form to open/close sequence
1051: if ($filelink=~/\.(page|sequence)$/) {
1052: $r->print('</form>');
1053: }
1054: $r->print("</span></td>\n");
1055: if ($hash{'display_attrs_0'} == 1) {
1056: $r->print('<td> '.($title eq '' ? ' ' : $title).
1057: ' </td>'."\n");
1058: }
1059: $r->print('<td align="right"> ',
1060: $filecom[8]," </td>\n")
1061: if $hash{'display_attrs_1'} == 1;
1062: $r->print('<td> '.
1063: (&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
1064: if $hash{'display_attrs_2'} == 1;
1065: $r->print('<td> '.
1066: (&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
1067: if $hash{'display_attrs_3'} == 1;
1068:
1069: if ($hash{'display_attrs_4'} == 1) {
1070: my $author = &Apache::lonnet::metadata($filelink,'author');
1071: $r->print('<td> '.($author eq '' ? ' ' : $author).
1072: " </td>\n");
1073: }
1074: if ($hash{'display_attrs_5'} == 1) {
1075: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1076: # $keywords = ' ' if (!$keywords);
1077: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1078: " </td>\n");
1079: }
1080: #'
1081:
1082: if ($hash{'display_attrs_6'} == 1) {
1083: my $lang = &Apache::lonnet::metadata($filelink,'language');
1084: $lang = &Apache::loncommon::languagedescription($lang);
1085: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1086: " </td>\n");
1087: }
1088: if ($hash{'display_attrs_8'} == 1) {
1089: # statistics
1090: &dynmetaread($filelink);
1091: $r->print("<td>");
1092: for (qw(count course stdno avetries difficulty disc clear technical
1093: correct helpful depth)) {
1094:
1095: &dynmetaprint($r,$filelink,$_);
1096: }
1097: $r->print(" </td>\n");
1098:
1099: }
1100: if ($hash{'display_attrs_10'} == 1) {
1101: my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
1102: if($source eq 'open') {
1103: my $sourcelink = &Apache::lonsource::make_link($filelink,$listname);
1104: my $quotable_sourcelink = &Apache::loncommon::escape_single($sourcelink);
1105: &Apache::loncommon::inhibit_menu_check(\$quotable_sourcelink);
1106: $r->print('<td>'."<a href=\"javascript:openWindow('"
1107: .$quotable_sourcelink.
1108: "', 'previewsource', '700', '700', 'no', 'yes','yes');\"".
1109: " target=\"_self\">".&mt('Source Code')."</a> "."</td>\n");
1110: } else { #A cuddled else. :P
1111: $r->print("<td> </td>\n");
1112: }
1113: }
1114: if ($hash{'display_attrs_11'} == 1) {
1115: # links
1116: &dynmetaread($filelink);
1117: $r->print('<td>');
1118: &coursecontext($r,$filelink);
1119: for (qw(goto_list comefrom_list sequsage_list dependencies course_list)) {
1120: &dynmetaprint($r,$filelink,$_);
1121: }
1122: $r->print('</td>');
1123: }
1124: if ($hash{'display_attrs_7'} == 1) {
1125: # Show resource
1126: my $output=&showpreview($filelink);
1127: $r->print('<td> '.($output eq '' ? ' ':$output).
1128: " </td>\n");
1129: }
1130: if ($hash{'display_attrs_12'} == 1) {
1131: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1132: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1133: " </td>\n");
1134: }
1135:
1136: if ($hash{'display_attrs_13'} == 1) {
1137: my $notes = &Apache::lonnet::metadata($filelink,'notes');
1138: $r->print('<td> '.($notes eq '' ? ' ' : $notes).
1139: " </td>\n");
1140: }
1141:
1142: if ($hash{'display_attrs_14'} == 1) {
1143: my $abstract = &Apache::lonnet::metadata($filelink,'abstract');
1144: $r->print('<td> '.($abstract eq '' ? ' ' : $abstract).
1145: " </td>\n");
1146: }
1147:
1148: if ($hash{'display_attrs_15'} == 1) {
1149: my $gradelevel = &Apache::lonnet::metadata($filelink,'gradelevel');
1150: $r->print('<td> '.($gradelevel eq '' ? ' ' : $gradelevel).
1151: " </td>\n");
1152: }
1153:
1154: if ($hash{'display_attrs_16'} == 1) {
1155: my $standards = &Apache::lonnet::metadata($filelink,'standards');
1156: $r->print('<td> '.($standards eq '' ? ' ' : $standards).
1157: " </td>\n");
1158: }
1159:
1160: $r->print("</tr>\n");
1161: }
1162:
1163: # -- display directory
1164: if ($fnptr == $dirptr) {
1165: my $curdir = $startdir.$filecom[0].'/';
1166: my $anchor = $curdir;
1167: $anchor =~ s/\W//g;
1168: $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
1169: &begin_form ($r,$curdir);
1170: my $indentm1 = $indent-1;
1171: if ($indentm1 < 16 and $indentm1 > 0) {
1172: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$indentm1,
1173: ".gif class='LC_icon' />\n");
1174: } else {
1175: my $ten = int($indentm1/10.);
1176: my $rem = $indentm1%10.0;
1177: my $count = 0;
1178: while ($count < $ten) {
1179: $r->print ("<img alt=\"\" src=",$iconpath
1180: ,"whitespace10.gif class='LC_icon' />\n");
1181: $count++;
1182: }
1183: $r->print ("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
1184: ".gif class='LC_icon' />\n") if $rem > 0;
1185: }
1186: $r->print ('<input type="hidden" name="acts" value="" />');
1187: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
1188: 'folder_pointer_'.$diropen.'.gif"');
1189: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
1190: "\n");
1191: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
1192: $r->print ('<a href="javascript:gothere(\''
1193: .$quotable_curdir.'\')">'
1194: .'<img alt="'.&mt('Open Folder').'"src="'.
1195: $iconpath.'folder_'.$diropen.'.gif" class="LC_icon" /></a>'.
1196: "\n");
1197: $r->print ("$listname</form></td>\n");
1198: # Attributes
1199: my $filelink = $startdir.$filecom[0].'/default';
1200:
1201: if ($hash{'display_attrs_0'} == 1) {
1202: my $title = &Apache::lonnet::gettitle($filelink);
1203: $r->print('<td> '.($title eq '' ? ' ' : $title).
1204: ' </td>'."\n");
1205: }
1206: $r->print('<td align=right> ',
1207: $filecom[8]," </td>\n")
1208: if $hash{'display_attrs_1'} == 1;
1209: $r->print('<td> '.
1210: (&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
1211: if $hash{'display_attrs_2'} == 1;
1212: $r->print('<td> '.
1213: (&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
1214: if $hash{'display_attrs_3'} == 1;
1215:
1216: if ($hash{'display_attrs_4'} == 1) {
1217: my $author = &Apache::lonnet::metadata($filelink,'author');
1218: $r->print('<td> '.($author eq '' ? ' ' : $author).
1219: " </td>\n");
1220: }
1221: if ($hash{'display_attrs_5'} == 1) {
1222: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1223: # $keywords = ' ' if (!$keywords);
1224: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1225: " </td>\n");
1226: }
1227: if ($hash{'display_attrs_6'} == 1) {
1228: my $lang = &Apache::lonnet::metadata($filelink,'language');
1229: $lang = &Apache::loncommon::languagedescription($lang);
1230: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1231: " </td>\n");
1232: }
1233: if ($hash{'display_attrs_8'} == 1) {
1234: $r->print('<td> </td>');
1235: }
1236: if ($hash{'display_attrs_10'} == 1) {
1237: $r->print('<td> </td>');
1238: }
1239: if ($hash{'display_attrs_7'} == 1) {
1240: $r->print('<td> </td>');
1241: }
1242: if ($hash{'display_attrs_12'} == 1) {
1243: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1244: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1245: " </td>\n");
1246: }
1247: if ($hash{'display_attrs_11'} == 1) {
1248: $r->print('<td> </td>');
1249: }
1250: if ($hash{'display_attrs_12'} == 1) {
1251: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1252: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1253: " </td>\n");
1254: }
1255: if ($hash{'display_attrs_13'} == 1) {
1256: my $notes = &Apache::lonnet::metadata($filelink,'notes');
1257: $r->print('<td> '.($notes eq '' ? ' ' : $notes).
1258: " </td>\n");
1259: }
1260: if ($hash{'display_attrs_14'} == 1) {
1261: my $abstract = &Apache::lonnet::metadata($filelink,'abstract');
1262: $r->print('<td> '.($abstract eq '' ? ' ' : $abstract).
1263: " </td>\n");
1264: }
1265: if ($hash{'display_attrs_15'} == 1) {
1266: my $gradelevel = &Apache::lonnet::metadata($filelink,'gradelevel');
1267: $r->print('<td> '.($gradelevel eq '' ? ' ' : $gradelevel).
1268: " </td>\n");
1269: }
1270: if ($hash{'display_attrs_16'} == 1) {
1271: my $standards = &Apache::lonnet::metadata($filelink,'standards');
1272: $r->print('<td> '.($standards eq '' ? ' ' : $standards).
1273: " </td>\n");
1274: }
1275: $r->print('</tr>');
1276: }
1277:
1278: }
1279:
1280: sub coursecontext {
1281: my ($r,$filelink)=@_;
1282: my $filesymb=&Apache::lonnet::symbread($filelink);
1283: if ($filesymb) {
1284: my ($map,$index,$resource)=&Apache::lonnet::decode_symb($filesymb);
1285: $r->print(&mt('Already in this course:<br />[_1] in folder/map [_2].<br />',
1286: &Apache::lonnet::gettitle($resource),
1287: &Apache::lonnet::gettitle($map)));
1288: }
1289: }
1290:
1291: sub showpreview {
1292: my ($filelink)=@_;
1293: if ($filelink=~m-^(/ext/|http://)-) {
1294: return &mt('External Resource, preview not enabled');
1295: }
1296: my ($curfext)=($filelink=~/\.(\w+)$/);
1297: my $output='';
1298: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
1299: if ($embstyle eq 'ssi') {
1300: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
1301: '.tmp';
1302: if ((!$env{'form.updatedisplay'}) &&
1303: (-e $cache)) {
1304: open(FH,$cache);
1305: $output=join("\n",<FH>);
1306: close(FH);
1307: } else {
1308: # In update display mode, remove old cache. This is done to retroactively
1309: # clean up course context renderings.
1310: if (-e $cache) {
1311: unlink($cache);
1312: }
1313: $output=&Apache::lonnet::ssi_body($filelink);
1314: # Is access denied? Don't render, don't store
1315: if ($output=~/LONCAPAACCESSCONTROLERRORSCREEN/s) {
1316: $output='';
1317: # Was this rendered in course content? Don't store
1318: } elsif (!&Apache::lonnet::symbread($filelink)) {
1319: open(FH,">$cache");
1320: print FH $output;
1321: close(FH);
1322: }
1323: }
1324: $output='<font size="-2">'.$output.'</font>';
1325: } elsif ($embstyle eq 'img') {
1326: $output='<img alt="'.&mt('Preview').'" src="'.$filelink.'" />';
1327: } elsif ($filelink=~m{^/res/($match_domain)/($match_username)/}) {
1328: $output='<img alt="'.&mt('Preview').'" src="http://'.
1329: &Apache::lonnet::hostname(&Apache::lonnet::homeserver($2,$1)).
1330: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1331: }
1332: return $output;
1333: }
1334:
1335: sub dynmetaprint {
1336: my ($r,$filelink,$item)=@_;
1337: if ($dynhash{$filelink}->{$item}) {
1338: $r->print("\n<br />".$fieldnames{$item}.': '.
1339: &Apache::lonmeta::prettyprint($item,
1340: $dynhash{$filelink}->{$item},
1341: (($env{'form.catalogmode'} ne 'import')?'preview':''),
1342: '',
1343: (($env{'form.catalogmode'} eq 'import')?'document.forms.fileattr':''),1));
1344: }
1345: }
1346:
1347: # ------------------- prints the beginning of a form for directory or file link
1348: sub begin_form {
1349: my ($r,$uri) = @_;
1350: my $anchor = $uri;
1351: $anchor =~ s/\W//g;
1352: $uri=&Apache::loncommon::escape_single($uri);
1353: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1354: '#'.$anchor.
1355: '" onSubmit="return rep_dirpath(\''.$dnum.'\''.
1356: ',document.forms.fileattr.acts.value)" '.
1357: 'enctype="application/x-www-form-urlencoded">'."\n");
1358: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'" />'.
1359: "\n");
1360: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n");
1361: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
1362: $dnum++;
1363: }
1364:
1365: # --------- settings whenever the user causes the indexer window to be launched
1366: sub start_fresh_session {
1367: my ($hash) = @_;
1368: delete $hash->{'form.catalogmode'};
1369: delete $hash->{'form.mode'};
1370: delete $hash->{'form.form'};
1371: delete $hash->{'form.element'};
1372: delete $hash->{'form.omit'};
1373: delete $hash->{'form.only'};
1374: foreach (keys %{$hash}) {
1375: delete $hash->{$_} if (/^(pre_|store)/);
1376: }
1377: }
1378:
1379: # ------------------------------------------------------------------- setvalues
1380: sub setvalues {
1381: # setvalues is used in registerurl to synchronize the database
1382: # hash and environment hashes
1383: my ($H1,$h1key,$H2,$h2key) =@_;
1384: #
1385: if (exists $H2->{$h2key}) {
1386: $H1->{$h1key} = $H2->{$h2key};
1387: } elsif (exists $H1->{$h1key}) {
1388: $H2->{$h2key} = $H1->{$h1key};
1389: }
1390: }
1391:
1392: 1;
1393:
1394: sub cleanup {
1395: if (tied(%hash)){
1396: &Apache::lonnet::logthis('Cleanup indexer: hash');
1397: }
1398: return OK;
1399: }
1400:
1401:
1402:
1403:
1404:
1405: =head1 NAME
1406:
1407: Apache::lonindexer - mod_perl module for cross server filesystem browsing
1408:
1409: =head1 SYNOPSIS
1410:
1411: Invoked by /etc/httpd/conf/srm.conf:
1412:
1413: <LocationMatch "^/res.*/$">
1414: SetHandler perl-script
1415: PerlHandler Apache::lonindexer
1416: </LocationMatch>
1417:
1418: =head1 INTRODUCTION
1419:
1420: This module enables a scheme of browsing across a cross server.
1421:
1422: This is part of the LearningOnline Network with CAPA project
1423: described at http://www.lon-capa.org.
1424:
1425: =head1 BEGIN SUBROUTINE
1426:
1427: This routine is only run once after compilation.
1428:
1429: =over 4
1430:
1431: =item *
1432:
1433: Initializes %language hash table.
1434:
1435: =back
1436:
1437: =head1 HANDLER SUBROUTINE
1438:
1439: This routine is called by Apache and mod_perl.
1440:
1441: =over 4
1442:
1443: =item *
1444:
1445: read in machine configuration variables
1446:
1447: =item *
1448:
1449: see if called from an interactive mode
1450:
1451: =item *
1452:
1453: refresh environment with user database values (in %hash)
1454:
1455: =item *
1456:
1457: define extra fields and buttons in case of special mode
1458:
1459: =item *
1460:
1461: set catalogmodefunctions to have extra needed javascript functionality
1462:
1463: =item *
1464:
1465: print header
1466:
1467: =item *
1468:
1469: evaluate actions from previous page (both cumulatively and chronologically)
1470:
1471: =item *
1472:
1473: output title
1474:
1475: =item *
1476:
1477: get state of file attributes to be showing
1478:
1479: =item *
1480:
1481: output state of file attributes to be showing
1482:
1483: =item *
1484:
1485: output starting row to the indexed file/directory hierarchy
1486:
1487: =item *
1488:
1489: read in what directories have previously been set to "open"
1490:
1491: =item *
1492:
1493: if not at top level, provide an uplink arrow
1494:
1495: =item *
1496:
1497: recursively go through all the directories and output as appropriate
1498:
1499: =item *
1500:
1501: information useful for group import
1502:
1503: =item *
1504:
1505: end the tables
1506:
1507: =item *
1508:
1509: end the output and return
1510:
1511: =back
1512:
1513: =head1 OTHER SUBROUTINES
1514:
1515: =over 4
1516:
1517: =item *
1518:
1519: scanDir - recursive scan of a directory
1520:
1521: =item *
1522:
1523: get_list - get complete matched list based on the uri (returns an array)
1524:
1525: =item *
1526:
1527: match_ext - filters out files based on extensions (returns an array)
1528:
1529: =item *
1530:
1531: display_line - displays one line in appropriate table format
1532:
1533: =item *
1534:
1535: begin_form - prints the beginning of a form for directory or file link
1536:
1537: =item *
1538:
1539: start_fresh_session - settings whenever the user causes the indexer window
1540: to be launched
1541:
1542: =back
1543:
1544: =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