1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.174 2007/08/01 21:12:12 banghart 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);
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: $catalogmodefunctions
363: function checkAll() {
364: var numForms = document.forms.length;
365: for (i=0;i<numForms;i++) {
366: var numElements = document.forms[i].elements.length;
367: for (j=0;j<numElements;j++){
368: var fieldName = document.forms[i].elements[j].name;
369: if (fieldName == 'filelink') {
370: document.forms[i].elements[j].checked = true;
371: queue(document.forms[i].name);
372: }
373: }
374: }
375: }
376: function uncheckAll() {
377: var numForms = document.forms.length;
378: for (i=0;i<numForms;i++) {
379: var numElements = document.forms[i].elements.length;
380: for (j=0;j<numElements;j++){
381: var fieldName = document.forms[i].elements[j].name;
382: if (fieldName == 'filelink') {
383: document.forms[i].elements[j].checked = false;
384: queue(document.forms[i].name);
385: }
386: }
387: }
388: }
389: function openWindow(url, wdwName, w, h, toolbar,scrollbar,locationbar) {
390: var xpos = (screen.width-w)/2;
391: xpos = (xpos < 0) ? '0' : xpos;
392: var ypos = (screen.height-h)/2-30;
393: ypos = (ypos < 0) ? '0' : ypos;
394: var options = "width=" + w + ",height=" + h + ",screenx="+xpos+",screeny="+ypos+",";
395: options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
396: options += "menubar=no,toolbar="+toolbar+",location="+locationbar+",directories=no";
397: var newWin = window.open(url, wdwName, options);
398: newWin.focus();
399: }
400: function gothere(val) {
401: window.location=val+'?acts='+document.forms.fileattr.acts.value$inhibit_menu;
402: }
403: </script>
404: ENDHEADER
405:
406: my ($headerdom)=($uri=~m{^/res/($match_domain)/});
407: $r->print(&Apache::loncommon::start_page('Browse Resources',$js,
408: {'domain' => $headerdom,}));
409: # ---------------------------------- get state of file attributes to be showing
410: if ($env{'form.attrs'}) {
411: for (my $i=0; $i<=11; $i++) {
412: delete $hash{'display_attrs_'.$i};
413: if ($env{'form.attr'.$i} == 1) {
414: $attrchk[$i] = 'checked';
415: $hash{'display_attrs_'.$i} = 1;
416: }
417: }
418: } else {
419: for (my $i=0; $i<=11; $i++) {
420: $attrchk[$i] = 'checked' if $hash{'display_attrs_'.$i} == 1;
421: }
422: }
423:
424: # ------------------------------- output state of file attributes to be showing
425: # All versions has to the last item
426: # since it does not take an extra col
427: my %lt=&Apache::lonlocal::texthash(
428: 'ti' => 'Title',
429: 'si' => 'Size',
430: 'la' => 'Last access',
431: 'lm' => 'Last modified',
432: 'st' => 'Statistics',
433: 'au' => 'Author',
434: 'kw' => 'Keywords',
435: 'ln' => 'Language',
436: 'sa' => 'Source Available',
437: 'sr' => 'Show resource',
438: 'li' => 'Linked/Related Resources',
439: 'av' => 'All versions',
440: 'ud' => 'Update Display',
441: 'pr' => 'Problems',
442: 'gr' => 'Graphics',
443: 'at' => 'All types'
444: );
445: $r->print(<<END);
446: <form method="post" name="fileattr" action="$uri"
447: enctype="application/x-www-form-urlencoded">
448: <label><input type="checkbox" name="attr9" value="1" $attrchk[9] onClick="this.form.submit();" /> $lt{'av'}</label>
449: <table border="0">
450: <tr>
451: <td><label><input type="checkbox" name="attr0" value="1" $attrchk[0] onClick="this.form.submit();" /> $lt{'ti'}</label></td>
452: <td><label><input type="checkbox" name="attr4" value="1" $attrchk[4] onClick="this.form.submit();" /> $lt{'au'}</label></td>
453: <td><label><input type="checkbox" name="attr5" value="1" $attrchk[5] onClick="this.form.submit();" /> $lt{'kw'}</label></td>
454: <td><label><input type="checkbox" name="attr6" value="1" $attrchk[6] onClick="this.form.submit();" /> $lt{'ln'}</label></td>
455: </tr>
456: <tr>
457: <td><label><input type="checkbox" name="attr1" value="1" $attrchk[1] onClick="this.form.submit();" /> $lt{'si'}</label></td>
458: <td><label><input type="checkbox" name="attr2" value="1" $attrchk[2] onClick="this.form.submit();" /> $lt{'la'}</label></td>
459: <td><label><input type="checkbox" name="attr3" value="1" $attrchk[3] onClick="this.form.submit();" /> $lt{'lm'}</label></td>
460: <td><label><input type="checkbox" name="attr10" value="1" $attrchk[10] onClick="this.form.submit();" /> $lt{'sa'}</label></td>
461: </tr>
462: <tr>
463: <td><label><input type="checkbox" name="attr8" value="1" $attrchk[8] onClick="this.form.submit();" /> $lt{'st'}</label></td>
464: <td><label><input type="checkbox" name="attr11" value="1" $attrchk[11] onClick="this.form.submit();" /> $lt{'li'}</label></td>
465: <td><label><input type="checkbox" name="attr7" value="1" $attrchk[7] onClick="this.form.submit();" /> $lt{'sr'}</label></td>
466: <td> </td>
467: </tr>
468: </table>
469: <input type="hidden" name="attrs" value="1" />
470: <input type="hidden" name="only" value="" />
471: <label><input type="checkbox" name="problem" value="problem" onClick="this.form.only.value += 'problem';this.form.submit();" />$lt{'pr'}</label>
472: <label><input type="checkbox" name="graphic" value="gif,jpg,jpeg" onClick="this.form.only.value += ',gif,jpg,jpg';this.form.submit();" />$lt{'gr'}</label>
473: <label><input type="checkbox" name="all" value="" onClick="this.form.only.value = '';this.form.submit();" />$lt{'at'}</label>
474:
475: <br />
476: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
477: <input type="hidden" name="acts" value="" />
478: $closebutton $groupimportbutton
479: END
480: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
481: # -------------- Filter out sequence containment in crumbs and "recent folders"
482: my $storeuri=$uri;
483: $storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
484: $storeuri=~s/\/+/\//g;
485: # ---------------------------------------------------------------- Bread crumbs
486: $r->print(&Apache::lonhtmlcommon::crumbs($storeuri,'','',
487: (($env{'form.catalogmode'} eq 'import')?
488: 'document.forms.fileattr':'')).
489: &Apache::lonhtmlcommon::select_recent('residx','resrecent',
490: '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();'));
491: # -------------------------------------------------------- Resource Home Button
492: my $reshome=$env{'course.'.$env{'request.course.id'}.'.reshome'};
493: if ($reshome) {
494: $r->print("<font size='+2'><a href='");
495: if ($env{'form.catalogmode'} eq 'import') {
496: $r->print('javascript:document.forms.fileattr.action="'.&Apache::loncommon::inhibit_menu_check($reshome).'";document.forms.fileattr.submit();');
497: } else {
498: $r->print($reshome);
499: }
500: $r->print("'>".&mt('Home').'</a></font>');
501: }
502: $r->print('</form>');
503: # ------------------------------------------------------ Remember where we were
504: &Apache::loncommon::storeresurl($storeuri);
505: &Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
506: # -------------------------------------------------- Check All and Uncheck all
507: if ($env{'form.catalogmode'} eq 'import') {
508: $r->print('<br /><input type="button" value="'.&mt("Check All").'" id="checkallbutton" onClick="javascript:checkAll()" />');
509: $r->print('<input type="button" value="'.&mt("Uncheck All").'" id="uncheckallbutton" onClick="javascript:uncheckAll()" />');
510: }
511: # ----------------- output starting row to the indexed file/directory hierarchy
512: my $titleclr="#ddffff";
513: #$r->print(&initdebug());
514: #$r->print(&writedebug("Omit:@Omit")) if (@Omit);
515: #$r->print(&writedebug("Only:@Only")) if (@Only);
516: $r->print('<table width="100%" border="0"><tr><td bgcolor="#777777">'."\n");
517: $r->print('<table width="100%" border="0"><tr bgcolor="'.$titleclr.'">'."\n");
518: $r->print("<td $colspan><b>".&mt('Name')."</b></td>\n");
519: $r->print("<td><b>".&mt('Title')."</b></td>\n")
520: if ($hash{'display_attrs_0'} == 1);
521: $r->print("<td align=right><b>".&mt("Size")." (".&mt("bytes").") ".
522: "</b></td>\n") if ($hash{'display_attrs_1'} == 1);
523: $r->print("<td><b>".&mt("Last accessed")."</b></td>\n")
524: if ($hash{'display_attrs_2'} == 1);
525: $r->print("<td><b>".&mt("Last modified")."</b></td>\n")
526: if ($hash{'display_attrs_3'} == 1);
527: $r->print("<td><b>".&mt("Author(s)")."</b></td>\n")
528: if ($hash{'display_attrs_4'} == 1);
529: $r->print("<td><b>".&mt("Keywords")."</b></td>\n")
530: if ($hash{'display_attrs_5'} == 1);
531: $r->print("<td><b>".&mt("Language")."</b></td>\n")
532: if ($hash{'display_attrs_6'} == 1);
533: $r->print("<td><b>".&mt("Usage Statistics")." <br />(".
534: &mt("Courses/Network Hits").")</b> ".&mt('updated periodically')."</td>\n")
535: if ($hash{'display_attrs_8'} == 1);
536: $r->print("<td><b>".&mt("Source Available")."</b></td>\n")
537: if ($hash{'display_attrs_10'} == 1);
538: $r->print("<td><b>".&mt("Linked/Related Resources")."</b></td>\n")
539: if ($hash{'display_attrs_11'} == 1);
540: $r->print("<td><b>".&mt("Resource")."</b></td>\n")
541: if ($hash{'display_attrs_7'} == 1);
542: $r->print('</tr>');
543:
544: # ----------------- read in what directories have previously been set to "open"
545: foreach (keys %hash) {
546: if ($_ =~ /^diropen_status_/) {
547: my $key = $_;
548: $key =~ s/^diropen_status_//;
549: $dirs{$key} = $hash{$_};
550: }
551: }
552:
553: if ($env{'form.openuri'}) { # take care of review and refresh options
554: my $uri=$env{'form.openuri'};
555: if (exists($hash{'diropen_status_'.$uri})) {
556: my $cursta = $hash{'diropen_status_'.$uri};
557: $dirs{$uri} = 'open';
558: $hash{'diropen_status_'.$uri} = 'open';
559: if ($cursta eq 'open') {
560: $dirs{$uri} = 'closed';
561: $hash{'diropen_status_'.$uri} = 'closed';
562: }
563: } else {
564: $hash{'diropen_status_'.$uri} = 'open';
565: $dirs{$uri} = 'open';
566: }
567: }
568:
569: my $toplevel;
570: my $indent = 0;
571: $uri = $uri.'/' if $uri !~ /.*\/$/;
572:
573: if ($env{'form.dirPointer'} ne 'on') {
574: $hash{'top.level'} = $uri;
575: $toplevel = $uri;
576: } else {
577: $toplevel = $hash{'top.level'};
578: }
579:
580: # -------------------------------- if not at top level, provide an uplink arrow
581: if ($toplevel ne '/res/'){
582: my (@uri_com) = split(/\//,$uri);
583: pop @uri_com;
584: my $upone = join('/',@uri_com);
585: my @list = qw (0);
586: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
587: $indent = 1;
588: }
589:
590: # -------- recursively go through all the directories and output as appropriate
591: &scanDir ($r,$toplevel,$indent,\%hash);
592:
593:
594: # -------------------------------------------------------------- end the tables
595: $r->print('</table>');
596: # ---------------------------- embed hidden information useful for group import
597: $r->print("<form name='fnum' action=''>");
598: $r->print("<input type='hidden' name='fnum' value='$fnum' /></form>");
599: # -------------------------------------------------------------- end the tables
600: $r->print('</td></tr></table>');
601:
602: # --------------------------------------------------- end the output and return
603: $r->print(&Apache::loncommon::end_page()."\n");
604: }
605: if(! $c->aborted()) {
606: # write back into the temporary file
607: my %dbfile;
608: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
609: while (my($key,$value) = each(%hash)) {
610: $dbfile{$key}=$value;
611: }
612: untie(%dbfile);
613: }
614: }
615:
616: return OK;
617: }
618:
619: # ----------------------------------------------- recursive scan of a directory
620: sub scanDir {
621: my ($r,$startdir,$indent,$hashref)=@_;
622: my $c = $r->connection();
623: my ($compuri,$curdir);
624: my $dirptr=16384;
625: my $obs;
626: $indent++;
627: my %dupdirs = %dirs;
628: my @list=&get_list($r,$startdir);
629: foreach my $line (@list) {
630: return if ($c->aborted());
631: #This is a kludge, sorry aboot this
632: my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
633: next if($strip =~ /.*\.meta$/ | $obs eq '1');
634: my (@fileparts) = split(/\./,$strip);
635: if ($hash{'display_attrs_9'} != 1) {
636: # if not all versions to be shown
637: if (scalar(@fileparts) >= 3) {
638: my $fext = pop @fileparts;
639: my $ov = pop @fileparts;
640: my $fname = join ('.',@fileparts,$fext);
641: next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
642: }
643: }
644:
645: if ($dom eq 'domain') {
646: # dom list has full path /res/<domain name>/ already
647: $curdir='';
648: $compuri = (split(/\&/,$line))[0];
649: } else {
650: # user, dir & file have name only, i.e., w/o path
651: $compuri = join('',$startdir,$strip,'/');
652: $curdir = $startdir;
653: }
654: my $diropen = 'closed';
655: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
656: while (my ($key,$val)= each %dupdirs) {
657: if ($key eq $compuri and $val eq "open") {
658: $diropen = "opened";
659: delete($dupdirs{$key});
660: delete($dirs{$key});
661: }
662: }
663: }
664: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
665: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
666: }
667: $indent--;
668: }
669:
670: # --------------- get complete matched list based on the uri (returns an array)
671: sub get_list {
672: my ($r,$uri)=@_;
673: my @list=();
674: (my $luri = $uri) =~ s/\//_/g;
675: if ($env{'form.updatedisplay'}) {
676: foreach (keys %hash) {
677: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
678: delete $hash{$_} if ($_ =~ /^dirlist_timestamp_files_/);
679: }
680: }
681:
682: if (defined($hash{'dirlist_files_'.$luri}) &&
683: $hash{'dirlist_timestamp_files_'.$luri}+600 > (time)) {
684: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
685: } elsif ($uri=~/\.(page|sequence)\/$/) {
686: # is a page or a sequence
687: $uri=~s/\/$//;
688: $uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
689: $uri=~s/\/+/\//g;
690: foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
691: my @ratpart=split(/\:/,$_);
692: push(@list,&LONCAPA::map::qtescape($ratpart[1]));
693: }
694: $hash{'dirlist_files_'.$luri} = join("\n",@list);
695: } else {
696: # is really a directory
697: @list = &Apache::lonnet::dirlist($uri);
698: $hash{'dirlist_files_'.$luri} = join("\n",@list);
699: $hash{'dirlist_timestamp_files_'.$luri} = time;
700: }
701: return @list=&match_ext($r,@list);
702: }
703:
704: sub dynmetaread {
705: my $uri=shift;
706: if (($hash{'display_attrs_8'}==1) || ($hash{'display_attrs_11'}==1)) {
707: # We don't want the filename
708: $uri=~s/\/[^\/]+$//;
709: # Did we already see this?
710: my $builddir=$uri;
711: while ($builddir) {
712: if ($dynread{$builddir}) {
713: return 0;
714: }
715: $builddir=~s/\/[^\/]+$//;
716: }
717: # Actually get the data
718: %dynhash=
719: (%dynhash,&Apache::lonmeta::get_dynamic_metadata_from_sql($uri.'/'));
720: # Remember that we got it
721: $dynread{$uri}=1;
722: }
723: }
724:
725: sub initdebug {
726: my $start_page=
727: &Apache::loncommon::start_page('Debug',undef,
728: {'only_body' => 1,});
729: $start_page =~ s/\n/ /g;
730: return <<ENDJS;
731: <script type="text/javascript">
732: var debugging = true;
733: if (debugging) {
734: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
735: }
736:
737: function output(text) {
738: if (debugging) {
739: debuggingWindow.document.writeln(text);
740: }
741: }
742: output('$start_page<pre>');
743: </script>
744: ENDJS
745: }
746:
747: sub writedebug {
748: my ($text) = @_;
749: return "<script type=\"text/javascript\">output('$text');</script>";
750: }
751:
752: # -------------------- filters out files based on extensions (returns an array)
753: sub match_ext {
754: my ($r,@packlist)=@_;
755: my @trimlist;
756: my $nextline;
757: my @fileext;
758: my $dirptr=16384;
759:
760: foreach my $line (@packlist) {
761: chomp $line;
762: $line =~ s/^\/home\/httpd\/html//;
763: my @unpackline = split (/\&/,$line);
764: next if ($unpackline[0] eq '.');
765: next if ($unpackline[0] eq '..');
766: my @filecom = split (/\./,$unpackline[0]);
767: my $fext = pop(@filecom);
768: my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
769: if ($fnptr == 0 and $unpackline[3] ne "") {
770: my $embstyle = &Apache::loncommon::fileembstyle($fext);
771: push @trimlist,$line if (defined($embstyle) &&
772: ($embstyle ne 'hdn' or $fext eq 'meta'));
773: } else {
774: push @trimlist,$line;
775: }
776: }
777: @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
778: return @trimlist;
779: }
780:
781: # ------------------------------- displays one line in appropriate table format
782: sub display_line {
783: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
784: my (@pathfn, $fndir);
785: # there could be relative paths (files actually belonging into this directory)
786: # or absolute paths (for example, from sequences)
787: my $absolute;
788: my $pathprefix;
789: if ($line=~m|^/res/| && $startdir ne '') {
790: $absolute=1;
791: $pathprefix='';
792: } else {
793: $absolute=0;
794: $pathprefix=$startdir;
795: }
796: my $dirptr=16384;
797: my $fileclr="#ffffe6";
798: my $iconpath= $r->dir_config('lonIconsURL') . '/';
799:
800: my @filecom = split (/\&/,$line);
801: my @pathcom = split (/\//,$filecom[0]);
802: my $listname = $pathcom[scalar(@pathcom)-1];
803: my $fnptr = $filecom[3]&$dirptr;
804: my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
805: $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
806:
807: my $tabtag='</td>';
808: my $i=0;
809: while ($i<=11) {
810: $tabtag=join('',$tabtag,"<td> </td>")
811: if ($i != 9 &&
812: $hash{'display_attrs_'.$i} == 1);
813: $i++;
814: }
815: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
816:
817: # display uplink arrow
818: if ($filecom[1] eq 'viewOneUp') {
819: my $updir=$startdir;
820: # -------------- Filter out sequence containment in crumbs and "recent folders"
821: $updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
822: $updir=~s/\/+/\//g;
823:
824: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
825: $r->print("<td>\n");
826: $r->print ('<form method="post" name="dirpathUP" action="'.$updir.
827: '/" '.
828: 'onSubmit="return rep_dirpath(\'UP\','.
829: 'document.forms.fileattr.acts.value)" '.
830: 'enctype="application/x-www-form-urlencoded"'.
831: '>'."\n");
832: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
833: $r->print ('<input type=hidden name=openuri value="'.
834: $startdir.'" />'."\n");
835: $r->print ('<input type="hidden" name="acts" value="" />'."\n");
836: $r->print ('<input src="'.$iconpath.'arrow_up.gif"');
837: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
838: "\n");
839: $r->print(&mt("Up")."</form>$tabtag</tr>\n");
840: return OK;
841: }
842: # Do we have permission to look at this?
843:
844: if($filecom[15] ne '1') { return OK if (!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])); }
845:
846: # make absolute links appear on different background
847: if ($absolute) { $fileclr='#ccdd99'; }
848:
849: # display domain
850: if ($filecom[1] eq 'domain') {
851: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n")
852: if ($env{'form.dirPointer'} eq "on");
853: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
854: $r->print("<td>");
855: &begin_form ($r,$filecom[0]);
856: my $anchor = $filecom[0];
857: $anchor =~ s/\W//g;
858: $r->print ('<a name="'.$anchor.'"></a>');
859: $r->print ('<input type="hidden" name="acts" value="" />');
860: $r->print ('<input src="'.$iconpath.'folder_pointer_'.
861: $diropen.'.gif"');
862: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
863: "\n");
864: my $quotable_filecom = &Apache::loncommon::escape_single($filecom[0]);
865: $r->print ('<a href="javascript:gothere(\''.$quotable_filecom.
866: '\')"><img alt="" src="'.$iconpath.'server.gif"');
867: $r->print (' class="LC_icon" /></a>'."\n");
868: $r->print (&mt("Domain")." - $listname ");
869: if (&Apache::lonnet::domain($listname,'description')) {
870: $r->print("(".&Apache::lonnet::domain($listname,'description').
871: ")");
872: }
873: $r->print ("</form>$tabtag</tr>\n");
874: return OK;
875:
876: # display user directory
877: }
878: if ($filecom[1] eq 'user') {
879: # $r->print("<tr valign=$valign bgcolor=\"$fileclr\">$extrafield");
880: my $curdir = $startdir.$filecom[0].'/';
881: my $anchor = $curdir;
882: $anchor =~ s/\W//g;
883: $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
884: &begin_form ($r,$curdir);
885: $r->print ('<a name="'.$anchor.'"></a><img alt="" src="'.$iconpath.
886: 'whitespace1.gif" class="LC_icon" />'."\n");
887: $r->print ('<input type="hidden" name="acts" value="" />');
888: $r->print ('<input src="'.$iconpath.'folder_pointer_'.$diropen.
889: '.gif"');
890: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
891: "\n");
892: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
893: $r->print ('<a href="javascript:gothere(\''.$quotable_curdir
894: .'\')"><img alt="'.$msg.'" src="'.
895: $iconpath.'quill.gif" class="LC_indexer_icon" /></a>');
896: my $domain=(split(m|/|,$startdir))[2];
897: my $plainname=&Apache::loncommon::plainname($listname,$domain);
898: $r->print ($listname);
899: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
900: $r->print ('</form>'.$tabtag.'</tr>'."\n");
901: return OK;
902: }
903:
904: # display file
905: if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
906: my $title;
907: my $filelink = $pathprefix.$filecom[0];
908: if ($hash{'display_attrs_0'} == 1) {
909: $title = &Apache::lonnet::gettitle($filelink);
910: }
911: my @file_ext = split (/\./,$listname);
912: my $curfext = $file_ext[-1];
913: if (@Omit) {
914: foreach (@Omit) { return OK if ($curfext eq $_); }
915: }
916: if (@Only) {
917: my $skip = 1;
918: foreach (@Only) { $skip = 0 if ($curfext eq $_); }
919: return OK if ($skip > 0);
920: }
921: # Set the icon for the file
922: my $iconname = &Apache::loncommon::icon($listname);
923: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\"><td nowrap='nowrap' valign='top'>");
924:
925: if ($env{'form.catalogmode'} eq 'interactive') {
926: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
927: $r->print("<a href=\"javascript:select_data(\'",
928: $quotable_filelink,"')\">");
929: $r->print("<img alt=\"\" src='",$iconpath,"select.gif' class='LC_icon' /></a>".
930: "\n");
931: $r->print("</td><td nowrap='nowrap' valign='top'>");
932: } elsif ($env{'form.catalogmode'} eq 'import') {
933: $r->print("<form name='form$fnum' action=''>\n");
934: $r->print("<input type='checkbox' name='filelink"."' ".
935: "value='$filelink' onClick='".
936: "javascript:queue(\"form$fnum\")' ");
937: if ($hash{'store_'.$filelink}) {
938: $r->print("checked");
939: }
940: $r->print(" />\n");
941: $r->print("</form></td><td nowrap='nowrap' valign='top'>");
942: $hash{"pre_${fnum}_link"}=$filelink;
943: $hash{"pre_${fnum}_title"}=$title;
944: if (!$hash{"pre_${fnum}_title"}) {
945: $hash{"pre_${fnum}_title"} = 'Not_retrieved';
946: }
947: $fnum++;
948: }
949: # Form to open or close sequences
950: if ($filelink=~/\.(page|sequence)$/) {
951: my $curdir = $startdir.$filecom[0].'/';
952: &begin_form($r,$curdir);
953: $indent--;
954: }
955: # General indentation
956: if ($indent > 0 and $indent < 11) {
957: $r->print("<img alt=\"\" src='",$iconpath,"whitespace",$indent,
958: ".gif' class='LC_icon' />\n");
959: } elsif ($indent >0) {
960: my $ten = int($indent/10.);
961: my $rem = $indent%10.0;
962: my $count = 0;
963: while ($count < $ten) {
964: $r->print("<img alt=\"\" src=".$iconpath.
965: "whitespace10.gif class='LC_icon' />\n");
966: $count++;
967: }
968: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
969: ".gif class='LC_icon' />\n") if $rem > 0;
970: }
971: # Sequence open/close icon
972: if ($filelink=~/\.(page|sequence)$/) {
973: my $curdir = $startdir.$filecom[0].'/';
974: my $anchor = $curdir;
975: $anchor =~ s/\W//g;
976: $r->print ('<input type="hidden" name="acts" value="" />');
977: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
978: 'folder_pointer_'.$diropen.'.gif"');
979: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
980: "\n");
981: }
982: # Filetype icons
983: $r->print("<img alt=\"\" src='$iconname' class='LC_icon' />\n");
984: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
985:
986: $r->print (" <a href=\"javascript:openWindow('".$quotable_filelink.
987: "?inhibitmenu=yes','previewfile','450','500','no','yes','yes');\"".
988: " target=\"_self\">$listname</a> ");
989: $quotable_filelink = &Apache::loncommon::escape_single($filelink.'.meta');
990: &Apache::loncommon::inhibit_menu_check(\$quotable_filelink);
991: $r->print (" (<a href=\"javascript:openWindow('".$quotable_filelink.
992: "?inhibitmenu=yes','metadatafile','500','550','no','yes','no');\" ".
993: " target=\"_self\">metadata</a>) ");
994: # Close form to open/close sequence
995: if ($filelink=~/\.(page|sequence)$/) {
996: $r->print('</form>');
997: }
998: $r->print("</td>\n");
999: if ($hash{'display_attrs_0'} == 1) {
1000: $r->print('<td> '.($title eq '' ? ' ' : $title).
1001: ' </td>'."\n");
1002: }
1003: $r->print('<td align=right> ',
1004: $filecom[8]," </td>\n")
1005: if $hash{'display_attrs_1'} == 1;
1006: $r->print('<td> '.
1007: (localtime($filecom[9]))." </td>\n")
1008: if $hash{'display_attrs_2'} == 1;
1009: $r->print('<td> '.
1010: (localtime($filecom[10]))." </td>\n")
1011: if $hash{'display_attrs_3'} == 1;
1012:
1013: if ($hash{'display_attrs_4'} == 1) {
1014: my $author = &Apache::lonnet::metadata($filelink,'author');
1015: $r->print('<td> '.($author eq '' ? ' ' : $author).
1016: " </td>\n");
1017: }
1018: if ($hash{'display_attrs_5'} == 1) {
1019: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1020: # $keywords = ' ' if (!$keywords);
1021: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1022: " </td>\n");
1023: }
1024: #'
1025:
1026: if ($hash{'display_attrs_6'} == 1) {
1027: my $lang = &Apache::lonnet::metadata($filelink,'language');
1028: $lang = &Apache::loncommon::languagedescription($lang);
1029: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1030: " </td>\n");
1031: }
1032: if ($hash{'display_attrs_8'} == 1) {
1033: # statistics
1034: &dynmetaread($filelink);
1035: $r->print("<td>");
1036: &dynmetaprint($r,$filelink,'count');
1037: &dynmetaprint($r,$filelink,'course');
1038: &dynmetaprint($r,$filelink,'stdno');
1039: &dynmetaprint($r,$filelink,'avetries');
1040: &dynmetaprint($r,$filelink,'difficulty');
1041: &dynmetaprint($r,$filelink,'disc');
1042: &dynmetaprint($r,$filelink,'clear');
1043: &dynmetaprint($r,$filelink,'technical');
1044: &dynmetaprint($r,$filelink,'correct');
1045: &dynmetaprint($r,$filelink,'helpful');
1046: &dynmetaprint($r,$filelink,'depth');
1047: $r->print(" </td>\n");
1048:
1049: }
1050: if ($hash{'display_attrs_10'} == 1) {
1051: my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
1052: if($source eq 'open') {
1053: my $sourcelink = &Apache::lonsource::make_link($filelink,$listname);
1054: my $quotable_sourcelink = &Apache::loncommon::escape_single($sourcelink);
1055: &Apache::loncommon::inhibit_menu_check(\$quotable_sourcelink);
1056: $r->print('<td>'."<a href=\"javascript:openWindow('"
1057: .$quotable_sourcelink.
1058: "', 'previewsource', '700', '700', 'no', 'yes','yes');\"".
1059: " target=\"_self\">Yes</a> "."</td>\n");
1060: } else { #A cuddled else. :P
1061: $r->print("<td> </td>\n");
1062: }
1063: }
1064: if ($hash{'display_attrs_11'} == 1) {
1065: # links
1066: &dynmetaread($filelink);
1067: $r->print('<td>');
1068: &coursecontext($r,$filelink);
1069: &dynmetaprint($r,$filelink,'goto_list');
1070: &dynmetaprint($r,$filelink,'comefrom_list');
1071: &dynmetaprint($r,$filelink,'sequsage_list');
1072: &dynmetaprint($r,$filelink,'dependencies');
1073: &dynmetaprint($r,$filelink,'course_list');
1074: $r->print('</td>');
1075: }
1076: if ($hash{'display_attrs_7'} == 1) {
1077: # Show resource
1078: my $output=&showpreview($filelink);
1079: $r->print('<td> '.($output eq '' ? ' ':$output).
1080: " </td>\n");
1081: }
1082: $r->print("</tr>\n");
1083: }
1084:
1085: # -- display directory
1086: if ($fnptr == $dirptr) {
1087: my $curdir = $startdir.$filecom[0].'/';
1088: my $anchor = $curdir;
1089: $anchor =~ s/\W//g;
1090: $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
1091: &begin_form ($r,$curdir);
1092: my $indentm1 = $indent-1;
1093: if ($indentm1 < 11 and $indentm1 > 0) {
1094: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$indentm1,
1095: ".gif class='LC_icon' />\n");
1096: } else {
1097: my $ten = int($indentm1/10.);
1098: my $rem = $indentm1%10.0;
1099: my $count = 0;
1100: while ($count < $ten) {
1101: $r->print ("<img alt=\"\" src=",$iconpath
1102: ,"whitespace10.gif class='LC_icon' />\n");
1103: $count++;
1104: }
1105: $r->print ("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
1106: ".gif class='LC_icon' />\n") if $rem > 0;
1107: }
1108: $r->print ('<input type="hidden" name="acts" value="" />');
1109: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
1110: 'folder_pointer_'.$diropen.'.gif"');
1111: $r->print (' name="'.$msg.'" type="image" class="LC_indexer_icon" />'.
1112: "\n");
1113: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
1114: $r->print ('<a href="javascript:gothere(\''
1115: .$quotable_curdir.'\')">'
1116: .'<img alt="'.&mt('Open Folder').'"src="'.
1117: $iconpath.'folder_'.$diropen.'.gif" class="LC_icon" /></a>'.
1118: "\n");
1119: $r->print ("$listname</form></td>\n");
1120: # Attributes
1121: my $filelink = $startdir.$filecom[0].'/default';
1122:
1123: if ($hash{'display_attrs_0'} == 1) {
1124: my $title = &Apache::lonnet::gettitle($filelink);
1125: $r->print('<td> '.($title eq '' ? ' ' : $title).
1126: ' </td>'."\n");
1127: }
1128: $r->print('<td align=right> ',
1129: $filecom[8]," </td>\n")
1130: if $hash{'display_attrs_1'} == 1;
1131: $r->print('<td> '.
1132: (localtime($filecom[9]))." </td>\n")
1133: if $hash{'display_attrs_2'} == 1;
1134: $r->print('<td> '.
1135: (localtime($filecom[10]))." </td>\n")
1136: if $hash{'display_attrs_3'} == 1;
1137:
1138: if ($hash{'display_attrs_4'} == 1) {
1139: my $author = &Apache::lonnet::metadata($filelink,'author');
1140: $r->print('<td> '.($author eq '' ? ' ' : $author).
1141: " </td>\n");
1142: }
1143: if ($hash{'display_attrs_5'} == 1) {
1144: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1145: # $keywords = ' ' if (!$keywords);
1146: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1147: " </td>\n");
1148: }
1149: if ($hash{'display_attrs_6'} == 1) {
1150: my $lang = &Apache::lonnet::metadata($filelink,'language');
1151: $lang = &Apache::loncommon::languagedescription($lang);
1152: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1153: " </td>\n");
1154: }
1155: if ($hash{'display_attrs_8'} == 1) {
1156: $r->print('<td> </td>');
1157: }
1158: if ($hash{'display_attrs_10'} == 1) {
1159: $r->print('<td> </td>');
1160: }
1161: if ($hash{'display_attrs_11'} == 1) {
1162: $r->print('<td> </td>');
1163: }
1164: if ($hash{'display_attrs_7'} == 1) {
1165: $r->print('<td> </td>');
1166: }
1167: $r->print('</tr>');
1168: }
1169:
1170: }
1171:
1172: sub coursecontext {
1173: my ($r,$filelink)=@_;
1174: my $filesymb=&Apache::lonnet::symbread($filelink);
1175: if ($filesymb) {
1176: my ($map,$index,$resource)=&Apache::lonnet::decode_symb($filesymb);
1177: $r->print(&mt('Already in this course:<br />[_1] in folder/map [_2].<br />',
1178: &Apache::lonnet::gettitle($resource),
1179: &Apache::lonnet::gettitle($map)));
1180: }
1181: }
1182:
1183: sub showpreview {
1184: my ($filelink)=@_;
1185: if ($filelink=~m-^(/ext/|http://)-) {
1186: return &mt('External Resource, preview not enabled');
1187: }
1188: my ($curfext)=($filelink=~/\.(\w+)$/);
1189: my $output='';
1190: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
1191: if ($embstyle eq 'ssi') {
1192: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
1193: '.tmp';
1194: if ((!$env{'form.updatedisplay'}) &&
1195: (-e $cache)) {
1196: open(FH,$cache);
1197: $output=join("\n",<FH>);
1198: close(FH);
1199: } else {
1200: # In update display mode, remove old cache. This is done to retroactively
1201: # clean up course context renderings.
1202: if (-e $cache) {
1203: unlink($cache);
1204: }
1205: $output=&Apache::lonnet::ssi_body($filelink);
1206: # Is access denied? Don't render, don't store
1207: if ($output=~/LONCAPAACCESSCONTROLERRORSCREEN/s) {
1208: $output='';
1209: # Was this rendered in course content? Don't store
1210: } elsif (!&Apache::lonnet::symbread($filelink)) {
1211: open(FH,">$cache");
1212: print FH $output;
1213: close(FH);
1214: }
1215: }
1216: $output='<font size="-2">'.$output.'</font>';
1217: } elsif ($embstyle eq 'img') {
1218: $output='<img alt="'.&mt('Preview').'" src="'.$filelink.'" />';
1219: } elsif ($filelink=~m{^/res/($match_domain)/($match_username)/}) {
1220: $output='<img alt="'.&mt('Preview').'" src="http://'.
1221: &Apache::lonnet::hostname(&Apache::lonnet::homeserver($2,$1)).
1222: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1223: }
1224: return $output;
1225: }
1226:
1227: sub dynmetaprint {
1228: my ($r,$filelink,$item)=@_;
1229: if ($dynhash{$filelink}->{$item}) {
1230: $r->print("\n<br />".$fieldnames{$item}.': '.
1231: &Apache::lonmeta::prettyprint($item,
1232: $dynhash{$filelink}->{$item},
1233: (($env{'form.catalogmode'} ne 'import')?'preview':''),
1234: '',
1235: (($env{'form.catalogmode'} eq 'import')?'document.forms.fileattr':''),1));
1236: }
1237: }
1238:
1239: # ------------------- prints the beginning of a form for directory or file link
1240: sub begin_form {
1241: my ($r,$uri) = @_;
1242: my $anchor = $uri;
1243: $anchor =~ s/\W//g;
1244: $uri=&Apache::loncommon::escape_single($uri);
1245: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1246: '#'.$anchor.
1247: '" onSubmit="return rep_dirpath(\''.$dnum.'\''.
1248: ',document.forms.fileattr.acts.value)" '.
1249: 'enctype="application/x-www-form-urlencoded">'."\n");
1250: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'" />'.
1251: "\n");
1252: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n");
1253: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
1254: $dnum++;
1255: }
1256:
1257: # --------- settings whenever the user causes the indexer window to be launched
1258: sub start_fresh_session {
1259: my ($hash) = @_;
1260: delete $hash->{'form.catalogmode'};
1261: delete $hash->{'form.mode'};
1262: delete $hash->{'form.form'};
1263: delete $hash->{'form.element'};
1264: delete $hash->{'form.omit'};
1265: delete $hash->{'form.only'};
1266: foreach (keys %{$hash}) {
1267: delete $hash->{$_} if (/^(pre_|store)/);
1268: }
1269: }
1270:
1271: # ------------------------------------------------------------------- setvalues
1272: sub setvalues {
1273: # setvalues is used in registerurl to synchronize the database
1274: # hash and environment hashes
1275: my ($H1,$h1key,$H2,$h2key) =@_;
1276: #
1277: if (exists $H2->{$h2key}) {
1278: $H1->{$h1key} = $H2->{$h2key};
1279: } elsif (exists $H1->{$h1key}) {
1280: $H2->{$h2key} = $H1->{$h1key};
1281: }
1282: }
1283:
1284: 1;
1285:
1286: sub cleanup {
1287: if (tied(%hash)){
1288: &Apache::lonnet::logthis('Cleanup indexer: hash');
1289: }
1290: return OK;
1291: }
1292:
1293:
1294:
1295:
1296:
1297: =head1 NAME
1298:
1299: Apache::lonindexer - mod_perl module for cross server filesystem browsing
1300:
1301: =head1 SYNOPSIS
1302:
1303: Invoked by /etc/httpd/conf/srm.conf:
1304:
1305: <LocationMatch "^/res.*/$">
1306: SetHandler perl-script
1307: PerlHandler Apache::lonindexer
1308: </LocationMatch>
1309:
1310: =head1 INTRODUCTION
1311:
1312: This module enables a scheme of browsing across a cross server.
1313:
1314: This is part of the LearningOnline Network with CAPA project
1315: described at http://www.lon-capa.org.
1316:
1317: =head1 BEGIN SUBROUTINE
1318:
1319: This routine is only run once after compilation.
1320:
1321: =over 4
1322:
1323: =item *
1324:
1325: Initializes %language hash table.
1326:
1327: =back
1328:
1329: =head1 HANDLER SUBROUTINE
1330:
1331: This routine is called by Apache and mod_perl.
1332:
1333: =over 4
1334:
1335: =item *
1336:
1337: read in machine configuration variables
1338:
1339: =item *
1340:
1341: see if called from an interactive mode
1342:
1343: =item *
1344:
1345: refresh environment with user database values (in %hash)
1346:
1347: =item *
1348:
1349: define extra fields and buttons in case of special mode
1350:
1351: =item *
1352:
1353: set catalogmodefunctions to have extra needed javascript functionality
1354:
1355: =item *
1356:
1357: print header
1358:
1359: =item *
1360:
1361: evaluate actions from previous page (both cumulatively and chronologically)
1362:
1363: =item *
1364:
1365: output title
1366:
1367: =item *
1368:
1369: get state of file attributes to be showing
1370:
1371: =item *
1372:
1373: output state of file attributes to be showing
1374:
1375: =item *
1376:
1377: output starting row to the indexed file/directory hierarchy
1378:
1379: =item *
1380:
1381: read in what directories have previously been set to "open"
1382:
1383: =item *
1384:
1385: if not at top level, provide an uplink arrow
1386:
1387: =item *
1388:
1389: recursively go through all the directories and output as appropriate
1390:
1391: =item *
1392:
1393: information useful for group import
1394:
1395: =item *
1396:
1397: end the tables
1398:
1399: =item *
1400:
1401: end the output and return
1402:
1403: =back
1404:
1405: =head1 OTHER SUBROUTINES
1406:
1407: =over 4
1408:
1409: =item *
1410:
1411: scanDir - recursive scan of a directory
1412:
1413: =item *
1414:
1415: get_list - get complete matched list based on the uri (returns an array)
1416:
1417: =item *
1418:
1419: match_ext - filters out files based on extensions (returns an array)
1420:
1421: =item *
1422:
1423: display_line - displays one line in appropriate table format
1424:
1425: =item *
1426:
1427: begin_form - prints the beginning of a form for directory or file link
1428:
1429: =item *
1430:
1431: start_fresh_session - settings whenever the user causes the indexer window
1432: to be launched
1433:
1434: =back
1435:
1436: =cut
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