1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.194 2009/03/19 14:24:50 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<=15; $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<=15; $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: 'sa' => 'Source Available',
453: 'sr' => 'Show resource',
454: 'li' => 'Linked/Related Resources',
455: 'av' => 'All versions',
456: 'ud' => 'Update Display',
457: 'pr' => 'Problems',
458: 'gr' => 'Graphics',
459: 'at' => 'All types',
460: 'hd' => 'Display Options'
461: );
462: $r->print(<<END);
463: <fieldset>
464: <legend>$lt{'hd'}</legend>
465: <form method="post" name="fileattr" action="$uri"
466: enctype="application/x-www-form-urlencoded">
467: <label><input type="checkbox" name="attr9" value="1" $attrchk[9] onClick="this.form.submit();" /> $lt{'av'}</label>
468: <table border="0">
469: <tr>
470: <td><label><input type="checkbox" name="attr0" value="1" $attrchk[0] onClick="this.form.submit();" /> $lt{'ti'}</label></td>
471: <td><label><input type="checkbox" name="attr4" value="1" $attrchk[4] onClick="this.form.submit();" /> $lt{'au'}</label></td>
472: <td><label><input type="checkbox" name="attr5" value="1" $attrchk[5] onClick="this.form.submit();" /> $lt{'kw'}</label></td>
473: <td><label><input type="checkbox" name="attr6" value="1" $attrchk[6] onClick="this.form.submit();" /> $lt{'ln'}</label></td>
474: <td><label><input type="checkbox" name="attr13" value="1" $attrchk[13] onClick="this.form.submit();" /> $lt{'nt'}</label></td>
475: </tr>
476: <tr>
477: <td><label><input type="checkbox" name="attr1" value="1" $attrchk[1] onClick="this.form.submit();" /> $lt{'si'}</label></td>
478: <td><label><input type="checkbox" name="attr2" value="1" $attrchk[2] onClick="this.form.submit();" /> $lt{'la'}</label></td>
479: <td><label><input type="checkbox" name="attr3" value="1" $attrchk[3] onClick="this.form.submit();" /> $lt{'lm'}</label></td>
480: <td><label><input type="checkbox" name="attr10" value="1" $attrchk[10] onClick="this.form.submit();" /> $lt{'sa'}</label></td>
481: <td><label><input type="checkbox" name="attr14" value="1" $attrchk[14] onClick="this.form.submit();" /> $lt{'ab'}</label></td>
482: </tr>
483: <tr>
484: <td><label><input type="checkbox" name="attr8" value="1" $attrchk[8] onClick="this.form.submit();" /> $lt{'st'}</label></td>
485: <td><label><input type="checkbox" name="attr11" value="1" $attrchk[11] onClick="this.form.submit();" /> $lt{'li'}</label></td>
486: <td><label><input type="checkbox" name="attr7" value="1" $attrchk[7] onClick="this.form.submit();" /> $lt{'sr'}</label></td>
487: <td><label><input type="checkbox" name="attr12" value="1" $attrchk[12] onClick="this.form.submit();" /> $lt{'sb'}</label></td>
488: <td><label><input type="checkbox" name="attr15" value="1" $attrchk[15] onClick="this.form.submit();" /> $lt{'gl'}</label></td>
489: <td> </td>
490: </tr>
491: </table>
492: <input type="hidden" name="attrs" value="1" />
493: END
494: my @file_categories = &Apache::loncommon::filecategories();
495: my %select_file_categories;
496: my @select_form_order = ('');
497: $select_file_categories{''} = &mt('All file types');
498: foreach my $cat (@file_categories) {
499: my $types = join(",",&Apache::loncommon::filecategorytypes($cat));
500: $select_file_categories{$types} = $cat;
501: push(@select_form_order,$types);
502: }
503: $select_file_categories{'select_form_order'} = \@select_form_order;
504: my $type_element=
505: &Apache::loncommon::select_form($typeselect,'only',
506: %select_file_categories);
507: $type_element = '<label>'.&mt('File Type Displayed: [_1]',
508: $type_element).'</label>';
509: $r->print($type_element
510: .'</fieldset>');
511: $r->print(<<END);
512: <br />
513: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
514: <input type="hidden" name="acts" value="" />
515: $closebutton $groupimportbutton
516: END
517: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
518:
519: # -------------- Filter out sequence containment in crumbs and "recent folders"
520: my $storeuri=$uri;
521: $storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
522: $storeuri=~s/\/+/\//g;
523: # ---------------------------------------------------------------- Bread crumbs
524: $r->print(&Apache::lonhtmlcommon::crumbs($storeuri,'','',
525: (($env{'form.catalogmode'} eq 'import')?
526: 'document.forms.fileattr':'')).
527: &Apache::lonhtmlcommon::select_recent('residx','resrecent',
528: '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();'));
529: # -------------------------------------------------------- Resource Home Button
530: my $reshome=$env{'course.'.$env{'request.course.id'}.'.reshome'};
531: if ($reshome) {
532: $r->print("<span class=\"LC_fontsize_large\"><a href='");
533: if ($env{'form.catalogmode'} eq 'import') {
534: $r->print('javascript:document.forms.fileattr.action="'.&Apache::loncommon::inhibit_menu_check($reshome).'";document.forms.fileattr.submit();');
535: } else {
536: $r->print($reshome);
537: }
538: $r->print("'>".&mt('Home').'</a></span>');
539: }
540: $r->print('</form>');
541: # ------------------------------------------------------ Remember where we were
542: &Apache::loncommon::storeresurl($storeuri);
543: &Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
544: # -------------------------------------------------- Check All and Uncheck all
545: if ($env{'form.catalogmode'} eq 'import') {
546: $r->print('<br /><input type="button" value="'.&mt("Check All").'" id="checkallbutton" onClick="javascript:checkAll()" />');
547: $r->print('<input type="button" value="'.&mt("Uncheck All").'" id="uncheckallbutton" onClick="javascript:uncheckAll()" />');
548: }
549: # ----------------- output starting row to the indexed file/directory hierarchy
550: #$r->print(&initdebug());
551: #$r->print(&writedebug("Omit:@Omit")) if (@Omit);
552: #$r->print(&writedebug("Only:@Only")) if (@Only);
553: $r->print('<br /><br />');
554: $r->print(&Apache::loncommon::start_data_table("LC_tableBrowseRes")
555: .&Apache::loncommon::start_data_table_header_row());
556: $r->print("<th $colspan>".&mt('Name')."</th>\n");
557: $r->print("<th>".&mt('Title')."</th>\n")
558: if ($hash{'display_attrs_0'} == 1);
559: $r->print('<th class="LC_right">'.&mt("Size")." (".&mt("bytes").") ".
560: "</th>\n") if ($hash{'display_attrs_1'} == 1);
561: $r->print("<th>".&mt("Last accessed")."</th>\n")
562: if ($hash{'display_attrs_2'} == 1);
563: $r->print("<th>".&mt("Last modified")."</th>\n")
564: if ($hash{'display_attrs_3'} == 1);
565: $r->print("<th>".&mt("Author(s)")."</th>\n")
566: if ($hash{'display_attrs_4'} == 1);
567: $r->print("<th>".&mt("Keywords")."</th>\n")
568: if ($hash{'display_attrs_5'} == 1);
569: $r->print("<th>".&mt("Language")."</th>\n")
570: if ($hash{'display_attrs_6'} == 1);
571: $r->print("<th>".&mt("Usage Statistics")." <br />(".
572: &mt("Courses/Network Hits").") ".&mt('updated periodically')."</th>\n")
573: if ($hash{'display_attrs_8'} == 1);
574: $r->print("<th>".&mt("Source Available")."</th>\n")
575: if ($hash{'display_attrs_10'} == 1);
576: $r->print("<th>".&mt("Linked/Related Resources")."</th>\n")
577: if ($hash{'display_attrs_11'} == 1);
578: $r->print("<th>".&mt("Resource")."</th>\n")
579: if ($hash{'display_attrs_7'} == 1);
580: $r->print("<th>".&mt("Subject")."</th>\n")
581: if ($hash{'display_attrs_12'} == 1);
582: $r->print("<th>".&mt("Notes")."</th>\n")
583: if ($hash{'display_attrs_13'} == 1);
584: $r->print("<th>".&mt("Abstract")."</th>\n")
585: if ($hash{'display_attrs_14'} == 1);
586: $r->print("<th>".&mt("Grade Level")."</th>\n")
587: if ($hash{'display_attrs_15'} == 1);
588:
589: $r->print(&Apache::loncommon::end_data_table_header_row());
590:
591:
592:
593: # ----------------- read in what directories have previously been set to "open"
594: foreach (keys %hash) {
595: if ($_ =~ /^diropen_status_/) {
596: my $key = $_;
597: $key =~ s/^diropen_status_//;
598: $dirs{$key} = $hash{$_};
599: }
600: }
601:
602: if ($env{'form.openuri'}) { # take care of review and refresh options
603: my $uri=$env{'form.openuri'};
604: if (exists($hash{'diropen_status_'.$uri})) {
605: my $cursta = $hash{'diropen_status_'.$uri};
606: $dirs{$uri} = 'open';
607: $hash{'diropen_status_'.$uri} = 'open';
608: if ($cursta eq 'open') {
609: $dirs{$uri} = 'closed';
610: $hash{'diropen_status_'.$uri} = 'closed';
611: }
612: } else {
613: $hash{'diropen_status_'.$uri} = 'open';
614: $dirs{$uri} = 'open';
615: }
616: }
617:
618: my $toplevel;
619: my $indent = 0;
620: $uri = $uri.'/' if $uri !~ /.*\/$/;
621:
622: if ($env{'form.dirPointer'} ne 'on') {
623: $hash{'top.level'} = $uri;
624: $toplevel = $uri;
625: } else {
626: $toplevel = $hash{'top.level'};
627: }
628:
629: # -------------------------------- if not at top level, provide an uplink arrow
630: if ($toplevel ne '/res/'){
631: my (@uri_com) = split(/\//,$uri);
632: pop @uri_com;
633: my $upone = join('/',@uri_com);
634: my @list = qw (0);
635: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
636: $indent = 1;
637: }
638:
639: # -------- recursively go through all the directories and output as appropriate
640: &scanDir ($r,$toplevel,$indent,\%hash);
641:
642: # -------------------------------------------------------------- end the tables
643: $r->print(&Apache::loncommon::end_data_table());
644:
645: # ---------------------------- embed hidden information useful for group import
646: $r->print("<form name='fnum' action=''>");
647: $r->print("<input type='hidden' name='fnum' value='$fnum' /></form>");
648:
649: # --------------------------------------------------- end the output and return
650: $r->print(&Apache::loncommon::end_page()."\n");
651: }
652: if(! $c->aborted()) {
653: # write back into the temporary file
654: my %dbfile;
655: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
656: while (my($key,$value) = each(%hash)) {
657: $dbfile{$key}=$value;
658: }
659: untie(%dbfile);
660: }
661: }
662:
663: return OK;
664: }
665:
666: # ----------------------------------------------- recursive scan of a directory
667: sub scanDir {
668: my ($r,$startdir,$indent,$hashref)=@_;
669: my $c = $r->connection();
670: my ($compuri,$curdir);
671: my $dirptr=16384;
672: my $obs;
673: $indent++;
674: my %dupdirs = %dirs;
675: my @list=&get_list($r,$startdir);
676: foreach my $line (@list) {
677: return if ($c->aborted());
678: #This is a kludge, sorry aboot this
679: my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
680: next if($strip =~ /.*\.meta$/ | $obs eq '1');
681: my (@fileparts) = split(/\./,$strip);
682: if ($hash{'display_attrs_9'} != 1) {
683: # if not all versions to be shown
684: if (scalar(@fileparts) >= 3) {
685: my $fext = pop @fileparts;
686: my $ov = pop @fileparts;
687: my $fname = join ('.',@fileparts,$fext);
688: next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
689: }
690: }
691:
692: if ($dom eq 'domain') {
693: # dom list has full path /res/<domain name>/ already
694: $curdir='';
695: $compuri = (split(/\&/,$line))[0];
696: } else {
697: # user, dir & file have name only, i.e., w/o path
698: $compuri = join('',$startdir,$strip,'/');
699: $curdir = $startdir;
700: }
701: my $diropen = 'closed';
702: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
703: while (my ($key,$val)= each %dupdirs) {
704: if ($key eq $compuri and $val eq "open") {
705: $diropen = "opened";
706: delete($dupdirs{$key});
707: delete($dirs{$key});
708: }
709: }
710: }
711: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
712: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
713: }
714: $indent--;
715: }
716:
717: # --------------- get complete matched list based on the uri (returns an array)
718: sub get_list {
719: my ($r,$uri)=@_;
720: my @list=();
721: (my $luri = $uri) =~ s/\//_/g;
722: if ($env{'form.updatedisplay'}) {
723: foreach (keys %hash) {
724: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
725: delete $hash{$_} if ($_ =~ /^dirlist_timestamp_files_/);
726: }
727: }
728:
729: if (defined($hash{'dirlist_files_'.$luri}) &&
730: $hash{'dirlist_timestamp_files_'.$luri}+600 > (time)) {
731: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
732: } elsif ($uri=~/\.(page|sequence)\/$/) {
733: # is a page or a sequence
734: $uri=~s/\/$//;
735: $uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
736: $uri=~s/\/+/\//g;
737: foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
738: my @ratpart=split(/\:/,$_);
739: push(@list,&LONCAPA::map::qtescape($ratpart[1]));
740: }
741: $hash{'dirlist_files_'.$luri} = join("\n",@list);
742: } else {
743: # is really a directory
744: @list = &Apache::lonnet::dirlist($uri);
745: $hash{'dirlist_files_'.$luri} = join("\n",@list);
746: $hash{'dirlist_timestamp_files_'.$luri} = time;
747: }
748: return @list=&match_ext($r,@list);
749: }
750:
751: sub dynmetaread {
752: my $uri=shift;
753: if (($hash{'display_attrs_8'}==1) || ($hash{'display_attrs_11'}==1)) {
754: # We don't want the filename
755: $uri=~s/\/[^\/]+$//;
756: # Did we already see this?
757: my $builddir=$uri;
758: while ($builddir) {
759: if ($dynread{$builddir}) {
760: return 0;
761: }
762: $builddir=~s/\/[^\/]+$//;
763: }
764: # Actually get the data
765: %dynhash=
766: (%dynhash,&Apache::lonmeta::get_dynamic_metadata_from_sql($uri.'/'));
767: # Remember that we got it
768: $dynread{$uri}=1;
769: }
770: }
771:
772: sub initdebug {
773: my $start_page=
774: &Apache::loncommon::start_page('Debug',undef,
775: {'only_body' => 1,});
776: $start_page =~ s/\n/ /g;
777: return <<ENDJS;
778: <script type="text/javascript">
779: var debugging = true;
780: if (debugging) {
781: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
782: }
783:
784: function output(text) {
785: if (debugging) {
786: debuggingWindow.document.writeln(text);
787: }
788: }
789: output('$start_page<pre>');
790: </script>
791: ENDJS
792: }
793:
794: sub writedebug {
795: my ($text) = @_;
796: return "<script type=\"text/javascript\">output('$text');</script>";
797: }
798:
799: # -------------------- filters out files based on extensions (returns an array)
800: sub match_ext {
801: my ($r,@packlist)=@_;
802: my @trimlist;
803: my $nextline;
804: my @fileext;
805: my $dirptr=16384;
806:
807: foreach my $line (@packlist) {
808: chomp $line;
809: $line =~ s/^\/home\/httpd\/html//;
810: my @unpackline = split (/\&/,$line);
811: next if ($unpackline[0] eq '.');
812: next if ($unpackline[0] eq '..');
813: my @filecom = split (/\./,$unpackline[0]);
814: my $fext = pop(@filecom);
815: my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
816: if ($fnptr == 0 and $unpackline[3] ne "") {
817: my $embstyle = &Apache::loncommon::fileembstyle($fext);
818: push @trimlist,$line if (defined($embstyle) &&
819: ($embstyle ne 'hdn' or $fext eq 'meta'));
820: } else {
821: push @trimlist,$line;
822: }
823: }
824: @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
825: return @trimlist;
826: }
827:
828: # ------------------------------- displays one line in appropriate table format
829: sub display_line {
830: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
831: my (@pathfn, $fndir);
832: # there could be relative paths (files actually belonging into this directory)
833: # or absolute paths (for example, from sequences)
834: my $absolute;
835: my $pathprefix;
836: if ($line=~m|^/res/| && $startdir ne '') {
837: $absolute=1;
838: $pathprefix='';
839: } else {
840: $absolute=0;
841: $pathprefix=$startdir;
842: }
843: my $dirptr=16384;
844: #SB my $fileclr="#ffffe6";
845: my $iconpath= $r->dir_config('lonIconsURL') . '/';
846:
847: my @filecom = split (/\&/,$line);
848: my @pathcom = split (/\//,$filecom[0]);
849: my $listname = $pathcom[scalar(@pathcom)-1];
850: my $fnptr = $filecom[3]&$dirptr;
851: my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
852: $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
853: my $nowOpen = ($diropen eq 'opened' ? 1 : 0);
854:
855: my $tabtag='</td>';
856: my $i=0;
857: while ($i<=15) {
858: $tabtag=join('',$tabtag,"<td> </td>")
859: if ($i != 9 &&
860: $hash{'display_attrs_'.$i} == 1);
861: $i++;
862: }
863: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
864:
865: # display uplink arrow
866: if ($filecom[1] eq 'viewOneUp') {
867: my $updir=$startdir;
868: # -------------- Filter out sequence containment in crumbs and "recent folders"
869: $updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
870: $updir=~s/\/+/\//g;
871:
872: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
873: $r->print(&Apache::loncommon::start_data_table_row()); # valign="$valign" ?!?
874: $r->print($extrafield);
875: $r->print("<td>\n");
876: $r->print ('<form method="post" name="dirpathUP" action="'.$updir.
877: '/" '.
878: 'onSubmit="return rep_dirpath(\'UP\','.
879: 'document.forms.fileattr.acts.value)" '.
880: 'enctype="application/x-www-form-urlencoded"'.
881: '>'."\n");
882: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
883: $r->print ('<input type=hidden name=openuri value="'.
884: $startdir.'" />'."\n");
885: $r->print ('<input type="hidden" name="acts" value="" />'."\n");
886: $r->print ('<a href="#" onClick="document.dirpathUP.submit()"><img src="'.$iconpath.'arrow.up.gif"');
887: $r->print (' name="'.$msg.'" type="image" class="LC_fileicon" />'.
888: "\n");
889: $r->print(&mt("Up")."</a></form>$tabtag");
890: $r->print(&Apache::loncommon::end_data_table_row());
891: return OK;
892: }
893: # Do we have permission to look at this?
894:
895: if($filecom[15] ne '1') { return OK if (!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])); }
896:
897: # make absolute links appear on different background
898: #SB if ($absolute) { $fileclr='#ccdd99'; }
899:
900: # display domain
901: if ($filecom[1] eq 'domain') {
902: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n")
903: if ($env{'form.dirPointer'} eq "on");
904: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
905: $r->print(&Apache::loncommon::start_data_table_row()); # valign="$valign" ?!?"
906: $r->print($extrafield);
907: $r->print("<td>");
908: &begin_form ($r,$filecom[0]);
909: my $anchor = $filecom[0];
910: $anchor =~ s/\W//g;
911: $r->print ('<a name="'.$anchor.'"></a>');
912: $r->print ('<input type="hidden" name="acts" value="" />');
913: $r->print ('<a href="#" onClick="document.dirpath'.($dnum-1).'.submit()"><img src="'.$iconpath.'arrow.'.($nowOpen ? "open" : "closed" ).'.gif"');
914: $r->print (' name="'.$msg.'" type="image" class="LC_fileicon" /></a>'.
915: "\n");
916: my $quotable_filecom = &Apache::loncommon::escape_single($filecom[0]);
917: $r->print ('<a href="javascript:gothere(\''.$quotable_filecom.
918: '\')"><img alt="" src="'.$iconpath.'server.gif"');
919: $r->print (' class="LC_fileicon" />'."\n");
920: $r->print (&mt("Domain")." - $listname </a>");
921: if (&Apache::lonnet::domain($listname,'description')) {
922: $r->print("<br />(".&Apache::lonnet::domain($listname,'description').
923: ")");
924: }
925: $r->print("</form>$tabtag");
926: $r->print(&Apache::loncommon::end_data_table_row());
927: return OK;
928:
929: # display user directory
930: }
931: if ($filecom[1] eq 'user') {
932: # $r->print("<tr valign=$valign bgcolor=\"$fileclr\">$extrafield");
933: my $curdir = $startdir.$filecom[0].'/';
934: my $anchor = $curdir;
935: $anchor =~ s/\W//g;
936: #SB $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
937: $r->print(&Apache::loncommon::start_data_table_row()
938: .$extrafield.'<td class="LC_'.$valign.'">');
939: &begin_form ($r,$curdir);
940: $r->print ('<a name="'.$anchor.'"></a><img alt="" src="'.$iconpath.
941: 'whitespace_21.gif" class="LC_icon" />'."\n");
942: $r->print ('<input type="hidden" name="acts" value="" />');
943: $r->print ('<a href="#" onClick="document.dirpath'.($dnum-1).'.submit()">');
944: $r->print ('<img src="'.$iconpath.'arrow.'.($nowOpen ? "open" : "closed" ).
945: '.gif" class="LC_fileicon"');
946: $r->print (' name="'.$msg.'"/></a>'.
947: "\n");
948: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
949: $r->print ('<a href="javascript:gothere(\''.$quotable_curdir
950: .'\')"><img alt="'.$msg.'" src="'.
951: $iconpath.'quill.gif" class="LC_fileicon" />');
952: my $domain=(split(m|/|,$startdir))[2];
953: my $plainname=&Apache::loncommon::plainname($listname,$domain);
954: $r->print ($listname.'</a>');
955:
956: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
957: $r->print('</form>'.$tabtag);
958: $r->print(&Apache::loncommon::end_data_table_row());
959: return OK;
960: }
961:
962: # display file
963: if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
964: my $title;
965: my $filelink = $pathprefix.$filecom[0];
966: if ($hash{'display_attrs_0'} == 1) {
967: $title = &Apache::lonnet::gettitle($filelink);
968: }
969: my @file_ext = split (/\./,$listname);
970: my $curfext = $file_ext[-1];
971: if (@Omit) {
972: foreach (@Omit) { return OK if (lc($curfext) eq $_); }
973: }
974: if (@Only) {
975: my $skip = 1;
976: foreach (@Only) { $skip = 0 if (lc($curfext) eq $_); }
977: return OK if ($skip > 0);
978: }
979: # Set the icon for the file
980: my $iconname = &Apache::loncommon::icon($listname);
981: #SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">);
982: $r->print(&Apache::loncommon::start_data_table_row()); #SB valign="$valign" ?!?
983: $r->print('<td class="LC_middle LC_nobreak">');
984:
985: if ($env{'form.catalogmode'} eq 'interactive') {
986: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
987: $r->print("<a href=\"javascript:select_data(\'",
988: $quotable_filelink,"')\">");
989: $r->print("<img alt=\"\" src='",$iconpath,"select.gif' class='LC_icon' /></a>".
990: "\n");
991: $r->print('</td><td class="LC_middle"><span class="LC_nobreak">');
992: } elsif ($env{'form.catalogmode'} eq 'import') {
993: $r->print("<form name='form$fnum' action=''>\n");
994: $r->print("<input type='checkbox' name='filelink"."' ".
995: "value='$filelink' onClick='".
996: "javascript:queue(\"form$fnum\")' ");
997: if ($hash{'store_'.$filelink}) {
998: $r->print("checked");
999: }
1000: $r->print(" />\n");
1001: $r->print('</form></td><td class="LC_middle"><span class="LC_nobreak">');
1002: $hash{"pre_${fnum}_link"}=$filelink;
1003: $hash{"pre_${fnum}_title"}=$title;
1004: if (!$hash{"pre_${fnum}_title"}) {
1005: $hash{"pre_${fnum}_title"} = 'Not_retrieved';
1006: }
1007: $fnum++;
1008: }
1009: # Form to open or close sequences
1010: if ($filelink=~/\.(page|sequence)$/) {
1011: my $curdir = $startdir.$filecom[0].'/';
1012: &begin_form($r,$curdir);
1013: $indent--;
1014: }
1015: # General indentation
1016: my $count = 0;
1017: while ($count < $indent) {
1018: $r->print("<img alt=\"\" src=".$iconpath.
1019: "whitespace_21.gif class='LC_icon' />\n");
1020: $count++;
1021: }
1022: # Sequence open/close icon
1023: if ($filelink=~/\.(page|sequence)$/) {
1024: my $curdir = $startdir.$filecom[0].'/';
1025: my $anchor = $curdir;
1026: $anchor =~ s/\W//g;
1027: $r->print ('<input type="hidden" name="acts" value="" />');
1028: $r->print ('<a name="'.$anchor.'"></a>');
1029: $r->print ('<a href="#" onClick="document.dirpath'.($dnum-1).'.submit()">');
1030: $r->print ('<img src="'.$iconpath.'arrow.'.($nowOpen ? "open" : "closed" ).
1031: '.gif" class="LC_fileicon"');
1032: $r->print (' name="'.$msg.'" type="image" class="LC_fileicon" /></a>'.
1033: "\n");
1034: }
1035: # Filetype icons
1036: $r->print("<img alt=\"\" src='$iconname' class='LC_fileicon' />\n");
1037: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
1038:
1039: $r->print (" <a href=\"javascript:openWindow('".$quotable_filelink.
1040: "?inhibitmenu=yes','previewfile','450','500','no','yes','yes');\"".
1041: " target=\"_self\">$listname</a> ");
1042: $quotable_filelink = &Apache::loncommon::escape_single($filelink.'.meta');
1043: &Apache::loncommon::inhibit_menu_check(\$quotable_filelink);
1044: $r->print (" (<a href=\"javascript:openWindow('".$quotable_filelink.
1045: "?inhibitmenu=yes','metadatafile','500','550','no','yes','no');\" ".
1046: " target=\"_self\">".&mt('metadata')."</a>) ");
1047: # Close form to open/close sequence
1048: if ($filelink=~/\.(page|sequence)$/) {
1049: $r->print('</form>');
1050: }
1051: $r->print("</span></td>\n");
1052: if ($hash{'display_attrs_0'} == 1) {
1053: $r->print('<td> '.($title eq '' ? ' ' : $title).
1054: ' </td>'."\n");
1055: }
1056: $r->print('<td class="LC_right"> ',
1057: $filecom[8]," </td>\n")
1058: if $hash{'display_attrs_1'} == 1;
1059: $r->print('<td class="LC_nobreak"> '.
1060: (&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
1061: if $hash{'display_attrs_2'} == 1;
1062: $r->print('<td class="LC_nobreak"> '.
1063: (&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
1064: if $hash{'display_attrs_3'} == 1;
1065:
1066: if ($hash{'display_attrs_4'} == 1) {
1067: my $author = &Apache::lonnet::metadata($filelink,'author');
1068: $r->print('<td class="LC_nobreak"> '.($author eq '' ? ' ' : $author).
1069: " </td>\n");
1070: }
1071: if ($hash{'display_attrs_5'} == 1) {
1072: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1073: # $keywords = ' ' if (!$keywords);
1074: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1075: " </td>\n");
1076: }
1077:
1078: if ($hash{'display_attrs_6'} == 1) {
1079: my $lang = &Apache::lonnet::metadata($filelink,'language');
1080: $lang = &Apache::loncommon::languagedescription($lang);
1081: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1082: " </td>\n");
1083: }
1084: if ($hash{'display_attrs_8'} == 1) {
1085: # statistics
1086: &dynmetaread($filelink);
1087: $r->print("<td>");
1088: &dynmetaprint($r,$filelink,'count');
1089: &dynmetaprint($r,$filelink,'course');
1090: &dynmetaprint($r,$filelink,'stdno');
1091: &dynmetaprint($r,$filelink,'avetries');
1092: &dynmetaprint($r,$filelink,'difficulty');
1093: &dynmetaprint($r,$filelink,'disc');
1094: &dynmetaprint($r,$filelink,'clear');
1095: &dynmetaprint($r,$filelink,'technical');
1096: &dynmetaprint($r,$filelink,'correct');
1097: &dynmetaprint($r,$filelink,'helpful');
1098: &dynmetaprint($r,$filelink,'depth');
1099: $r->print(" </td>\n");
1100:
1101: }
1102: if ($hash{'display_attrs_10'} == 1) {
1103: my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
1104: if($source eq 'open') {
1105: my $sourcelink = &Apache::lonsource::make_link($filelink,$listname);
1106: my $quotable_sourcelink = &Apache::loncommon::escape_single($sourcelink);
1107: &Apache::loncommon::inhibit_menu_check(\$quotable_sourcelink);
1108: $r->print('<td>'."<a href=\"javascript:openWindow('"
1109: .$quotable_sourcelink.
1110: "', 'previewsource', '700', '700', 'no', 'yes','yes');\"".
1111: " target=\"_self\">".&mt('Source Code')."</a> "."</td>\n");
1112: } else { #A cuddled else. :P
1113: $r->print("<td> </td>\n");
1114: }
1115: }
1116: if ($hash{'display_attrs_11'} == 1) {
1117: # links
1118: &dynmetaread($filelink);
1119: $r->print('<td>');
1120: &coursecontext($r,$filelink);
1121: &dynmetaprint($r,$filelink,'goto_list');
1122: &dynmetaprint($r,$filelink,'comefrom_list');
1123: &dynmetaprint($r,$filelink,'sequsage_list');
1124: &dynmetaprint($r,$filelink,'dependencies');
1125: &dynmetaprint($r,$filelink,'course_list');
1126: $r->print('</td>');
1127: }
1128:
1129:
1130:
1131: if ($hash{'display_attrs_7'} == 1) {
1132: # Show resource
1133: my $output=&showpreview($filelink);
1134: $r->print('<td> '.($output eq '' ? ' ':$output).
1135: " </td>\n");
1136: }
1137:
1138: if ($hash{'display_attrs_12'} == 1) {
1139: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1140: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1141: " </td>\n");
1142: }
1143:
1144: if ($hash{'display_attrs_13'} == 1) {
1145: my $notes = &Apache::lonnet::metadata($filelink,'notes');
1146: $r->print('<td> '.($notes eq '' ? ' ' : $notes).
1147: " </td>\n");
1148: }
1149:
1150: if ($hash{'display_attrs_14'} == 1) {
1151: my $abstract = &Apache::lonnet::metadata($filelink,'abstract');
1152: $r->print('<td> '.($abstract eq '' ? ' ' : $abstract).
1153: " </td>\n");
1154: }
1155:
1156: if ($hash{'display_attrs_15'} == 1) {
1157: my $gradelevel = &Apache::lonnet::metadata($filelink,'gradelevel');
1158: $r->print('<td> '.($gradelevel eq '' ? ' ' : $gradelevel).
1159: " </td>\n");
1160: }
1161:
1162: $r->print(&Apache::loncommon::end_data_table_row());
1163: }
1164:
1165:
1166:
1167: # -- display directory
1168: if ($fnptr == $dirptr) {
1169: my $curdir = $startdir.$filecom[0].'/';
1170: my $anchor = $curdir;
1171: $anchor =~ s/\W//g;
1172: #SB $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
1173: $r->print(&Apache::loncommon::start_data_table_row()); # SB: bgcolor suggestion: darkgrey ("LC_info_row"?!?)
1174: # $r->print('<tr class="LC_info_row">');
1175: $r->print($extrafield.'<td class="LC_middle LC_nobreak">');
1176: &begin_form ($r,$curdir);
1177: my $indentm1 = $indent-1;
1178: my $count = 0;
1179: while ($count < $indentm1) {
1180: $r->print ("<img alt=\"\" src=",$iconpath
1181: ,"whitespace_21.gif class='LC_icon' />\n");
1182: $count++;
1183: }
1184: $r->print ('<input type="hidden" name="acts" value="" />');
1185: $r->print ('<a name="'.$anchor.'"></a>');
1186: $r->print ('<a href="#" onClick="document.dirpath'.($dnum-1).'.submit()"><img src="'.$iconpath.
1187: 'arrow.'.($nowOpen ? "open" : "closed" ).'.gif"');
1188: $r->print (' name="'.$msg.'" class="LC_fileicon" /></a>'.
1189: "\n");
1190: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
1191:
1192: my $location = &Apache::loncommon::lonhttpdurl("/adm/lonIcons");
1193: my $icon = "navmap.folder.".($nowOpen ? "open":"closed").'.gif';
1194: $r->print ('<a href="javascript:gothere(\''
1195: .$quotable_curdir.'\')"">'
1196: .'<img class="LC_fileicon" alt="'.&mt('Open Folder').'" src="'.
1197: $location."/".$icon.'" />'.
1198: "\n");
1199: $r->print ("$listname</a></form></td>\n");
1200: # Attributes
1201: my $filelink = $startdir.$filecom[0].'/default';
1202:
1203: if ($hash{'display_attrs_0'} == 1) {
1204: my $title = &Apache::lonnet::gettitle($filelink);
1205: $r->print('<td> '.($title eq '' ? ' ' : $title).
1206: ' </td>'."\n");
1207: }
1208: $r->print('<td class="LC_right"> ',
1209: $filecom[8]," </td>\n")
1210: if $hash{'display_attrs_1'} == 1;
1211: $r->print('<td class="LC_break"> '.
1212: (&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
1213: if $hash{'display_attrs_2'} == 1;
1214: $r->print('<td class="LC_break"> '.
1215: (&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
1216: if $hash{'display_attrs_3'} == 1;
1217:
1218: if ($hash{'display_attrs_4'} == 1) {
1219: my $author = &Apache::lonnet::metadata($filelink,'author');
1220: $r->print('<td> '.($author eq '' ? ' ' : $author).
1221: " </td>\n");
1222: }
1223: if ($hash{'display_attrs_5'} == 1) {
1224: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1225: # $keywords = ' ' if (!$keywords);
1226: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1227: " </td>\n");
1228: }
1229: if ($hash{'display_attrs_6'} == 1) {
1230: my $lang = &Apache::lonnet::metadata($filelink,'language');
1231: $lang = &Apache::loncommon::languagedescription($lang);
1232: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1233: " </td>\n");
1234: }
1235:
1236: if ($hash{'display_attrs_8'} == 1) {
1237: $r->print('<td> </td>');
1238: }
1239: if ($hash{'display_attrs_10'} == 1) {
1240: $r->print('<td> </td>');
1241: }
1242: if ($hash{'display_attrs_7'} == 1) {
1243: $r->print('<td> </td>');
1244: }
1245: if ($hash{'display_attrs_11'} == 1) {
1246: $r->print('<td> </td>');
1247: }
1248: if ($hash{'display_attrs_12'} == 1) {
1249: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1250: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1251: " </td>\n");
1252: }
1253: if ($hash{'display_attrs_13'} == 1) {
1254: my $notes = &Apache::lonnet::metadata($filelink,'notes');
1255: $r->print('<td> '.($notes eq '' ? ' ' : $notes).
1256: " </td>\n");
1257: }
1258:
1259: if ($hash{'display_attrs_14'} == 1) {
1260: my $abstract = &Apache::lonnet::metadata($filelink,'abstract');
1261: $r->print('<td> '.($abstract eq '' ? ' ' : $abstract).
1262: " </td>\n");
1263: }
1264:
1265: if ($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:
1271: $r->print(&Apache::loncommon::end_data_table_row());
1272: }
1273:
1274: }
1275:
1276: sub coursecontext {
1277: my ($r,$filelink)=@_;
1278: my $filesymb=&Apache::lonnet::symbread($filelink);
1279: if ($filesymb) {
1280: my ($map,$index,$resource)=&Apache::lonnet::decode_symb($filesymb);
1281: $r->print(&mt('Already in this course:<br />[_1] in folder/map [_2].<br />',
1282: &Apache::lonnet::gettitle($resource),
1283: &Apache::lonnet::gettitle($map)));
1284: }
1285: }
1286:
1287: sub showpreview {
1288: my ($filelink)=@_;
1289: if ($filelink=~m-^(/ext/|http://)-) {
1290: return &mt('External Resource, preview not enabled');
1291: }
1292: my ($curfext)=($filelink=~/\.(\w+)$/);
1293: my $output='';
1294: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
1295: if ($embstyle eq 'ssi') {
1296: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
1297: '.tmp';
1298: if ((!$env{'form.updatedisplay'}) &&
1299: (-e $cache)) {
1300: open(FH,$cache);
1301: $output=join("\n",<FH>);
1302: close(FH);
1303: } else {
1304: # In update display mode, remove old cache. This is done to retroactively
1305: # clean up course context renderings.
1306: if (-e $cache) {
1307: unlink($cache);
1308: }
1309: $output=&Apache::lonnet::ssi_body($filelink);
1310: # Is access denied? Don't render, don't store
1311: if ($output=~/LONCAPAACCESSCONTROLERRORSCREEN/s) {
1312: $output='';
1313: # Was this rendered in course content? Don't store
1314: } elsif (!&Apache::lonnet::symbread($filelink)) {
1315: open(FH,">$cache");
1316: print FH $output;
1317: close(FH);
1318: }
1319: }
1320: $output='<span class="LC_fontsize_medium">'.$output.'</span>';
1321: } elsif ($embstyle eq 'img') {
1322: $output='<img alt="'.&mt('Preview').'" src="'.$filelink.'" />';
1323: } elsif ($filelink=~m{^/res/($match_domain)/($match_username)/}) {
1324: $output='<img alt="'.&mt('Preview').'" src="http://'.
1325: &Apache::lonnet::hostname(&Apache::lonnet::homeserver($2,$1)).
1326: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1327: }
1328: return $output;
1329: }
1330:
1331: sub dynmetaprint {
1332: my ($r,$filelink,$item)=@_;
1333: if ($dynhash{$filelink}->{$item}) {
1334: $r->print("\n<br />".$fieldnames{$item}.': '.
1335: &Apache::lonmeta::prettyprint($item,
1336: $dynhash{$filelink}->{$item},
1337: (($env{'form.catalogmode'} ne 'import')?'preview':''),
1338: '',
1339: (($env{'form.catalogmode'} eq 'import')?'document.forms.fileattr':''),1));
1340: }
1341: }
1342:
1343: # ------------------- prints the beginning of a form for directory or file link
1344: sub begin_form {
1345: my ($r,$uri) = @_;
1346: my $anchor = $uri;
1347: $anchor =~ s/\W//g;
1348: $uri=&Apache::loncommon::escape_single($uri);
1349: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1350: '#'.$anchor.
1351: '" onSubmit="return rep_dirpath(\''.$dnum.'\''.
1352: ',document.forms.fileattr.acts.value)" '.
1353: 'enctype="application/x-www-form-urlencoded">'."\n");
1354: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'" />'.
1355: "\n");
1356: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n");
1357: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
1358: $dnum++;
1359: }
1360:
1361: # --------- settings whenever the user causes the indexer window to be launched
1362: sub start_fresh_session {
1363: my ($hash) = @_;
1364: delete $hash->{'form.catalogmode'};
1365: delete $hash->{'form.mode'};
1366: delete $hash->{'form.form'};
1367: delete $hash->{'form.element'};
1368: delete $hash->{'form.omit'};
1369: delete $hash->{'form.only'};
1370: foreach (keys %{$hash}) {
1371: delete $hash->{$_} if (/^(pre_|store)/);
1372: }
1373: }
1374:
1375: # ------------------------------------------------------------------- setvalues
1376: sub setvalues {
1377: # setvalues is used in registerurl to synchronize the database
1378: # hash and environment hashes
1379: my ($H1,$h1key,$H2,$h2key) =@_;
1380: #
1381: if (exists $H2->{$h2key}) {
1382: $H1->{$h1key} = $H2->{$h2key};
1383: } elsif (exists $H1->{$h1key}) {
1384: $H2->{$h2key} = $H1->{$h1key};
1385: }
1386: }
1387:
1388: 1;
1389:
1390: sub cleanup {
1391: if (tied(%hash)){
1392: &Apache::lonnet::logthis('Cleanup indexer: hash');
1393: }
1394: return OK;
1395: }
1396:
1397:
1398:
1399:
1400:
1401: =head1 NAME
1402:
1403: Apache::lonindexer - mod_perl module for cross server filesystem browsing
1404:
1405: =head1 SYNOPSIS
1406:
1407: Invoked by /etc/httpd/conf/srm.conf:
1408:
1409: <LocationMatch "^/res.*/$">
1410: SetHandler perl-script
1411: PerlHandler Apache::lonindexer
1412: </LocationMatch>
1413:
1414: =head1 INTRODUCTION
1415:
1416: This module enables a scheme of browsing across a cross server.
1417:
1418: This is part of the LearningOnline Network with CAPA project
1419: described at http://www.lon-capa.org.
1420:
1421: =head1 BEGIN SUBROUTINE
1422:
1423: This routine is only run once after compilation.
1424:
1425: =over 4
1426:
1427: =item *
1428:
1429: Initializes %language hash table.
1430:
1431: =back
1432:
1433: =head1 HANDLER SUBROUTINE
1434:
1435: This routine is called by Apache and mod_perl.
1436:
1437: =over 4
1438:
1439: =item *
1440:
1441: read in machine configuration variables
1442:
1443: =item *
1444:
1445: see if called from an interactive mode
1446:
1447: =item *
1448:
1449: refresh environment with user database values (in %hash)
1450:
1451: =item *
1452:
1453: define extra fields and buttons in case of special mode
1454:
1455: =item *
1456:
1457: set catalogmodefunctions to have extra needed javascript functionality
1458:
1459: =item *
1460:
1461: print header
1462:
1463: =item *
1464:
1465: evaluate actions from previous page (both cumulatively and chronologically)
1466:
1467: =item *
1468:
1469: output title
1470:
1471: =item *
1472:
1473: get state of file attributes to be showing
1474:
1475: =item *
1476:
1477: output state of file attributes to be showing
1478:
1479: =item *
1480:
1481: output starting row to the indexed file/directory hierarchy
1482:
1483: =item *
1484:
1485: read in what directories have previously been set to "open"
1486:
1487: =item *
1488:
1489: if not at top level, provide an uplink arrow
1490:
1491: =item *
1492:
1493: recursively go through all the directories and output as appropriate
1494:
1495: =item *
1496:
1497: information useful for group import
1498:
1499: =item *
1500:
1501: end the tables
1502:
1503: =item *
1504:
1505: end the output and return
1506:
1507: =back
1508:
1509: =head1 OTHER SUBROUTINES
1510:
1511: =over 4
1512:
1513: =item *
1514:
1515: scanDir - recursive scan of a directory
1516:
1517: =item *
1518:
1519: get_list - get complete matched list based on the uri (returns an array)
1520:
1521: =item *
1522:
1523: match_ext - filters out files based on extensions (returns an array)
1524:
1525: =item *
1526:
1527: display_line - displays one line in appropriate table format
1528:
1529: =item *
1530:
1531: begin_form - prints the beginning of a form for directory or file link
1532:
1533: =item *
1534:
1535: start_fresh_session - settings whenever the user causes the indexer window
1536: to be launched
1537:
1538: =back
1539:
1540: =cut
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