1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.160 2007/06/26 23:06:17 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 GDBM_File;
57: use LONCAPA qw(:match);
58:
59: # ---------------------------------------- variables used throughout the module
60: my %hash; # global user-specific gdbm file
61: my %dirs; # keys are directories, values are the open/close status
62: my %language; # has the reference information present in language.tab
63: my %dynhash; # hash of hashes for dynamic metadata
64: my %dynread; # hash of directories already read for dynamic metadata
65: my %fieldnames; # Metadata fieldnames
66: # ----- Values which are set by the handler subroutine and are accessible to
67: # ----- other methods.
68: my $extrafield; # default extra table cell
69: my $fnum; # file counter
70: my $dnum; # directory counter
71:
72: # ----- Used to include or exclude files with certain extensions.
73: my @Only = ();
74: my @Omit = ();
75:
76:
77:
78:
79: # ----------------------------- Handling routine called via Apache and mod_perl
80: sub handler {
81: my $r = shift;
82: my $c = $r->connection();
83: &Apache::loncommon::content_type($r,'text/html');
84: &Apache::loncommon::no_cache($r);
85: $r->send_http_header;
86: return OK if $r->header_only;
87: $fnum=0;
88: $dnum=0;
89:
90: # Deal with stupid global variables (is there a way around making
91: # these global to this package? It is just so wrong....)
92: undef (@Only);
93: undef (@Omit);
94: %fieldnames=&Apache::lonmeta::fieldnames();
95:
96: # ------------------------------------- read in machine configuration variables
97: my $iconpath= $r->dir_config('lonIconsURL') . "/";
98: my $domain = $r->dir_config('lonDefDomain');
99: my $role = $r->dir_config('lonRole');
100: my $loadlim = $r->dir_config('lonLoadLim');
101: my $servadm = $r->dir_config('lonAdmEMail');
102: my $sysadm = $r->dir_config('lonSysEMail');
103: my $lonhost = $r->dir_config('lonHostID');
104: my $tabdir = $r->dir_config('lonTabDir');
105:
106: my $fileclr='#ffffe6';
107: my $line;
108: my (@attrchk,@openpath);
109: my $uri=$r->uri;
110:
111: # -------------------------------------- see if called from an interactive mode
112: # Get the parameters from the query string
113: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
114: ['catalogmode','launch','acts','mode','form','element',
115: 'only','omit','titleelement']);
116: #-------------------------------------------------------------------
117: my $closebutton='';
118: my $groupimportbutton='';
119: my $colspan='';
120:
121: $extrafield='';
122: my $diropendb =
123: "/home/httpd/perl/tmp/$env{'user.domain'}_$env{'user.name'}_sel_res.db";
124: %hash = ();
125: {
126: my %dbfile;
127: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_WRITER(),0640)) {
128: if ($env{'form.launch'} eq '1') {
129: &start_fresh_session(\%dbfile);
130: }
131:
132: while(my($key,$value)=each(%dbfile)) {
133: $hash{$key}=$value;
134: }
135: untie(%dbfile);
136: }
137: }
138: {
139: #Hijack lonindexer to verify a title and be close down.
140: if ($env{'form.launch'} eq '2') {
141: &Apache::loncommon::content_type($r,'text/html');
142: my $extra='';
143: if (defined($env{'form.titleelement'}) &&
144: $env{'form.titleelement'} ne '') {
145: my $verify_title = &Apache::lonnet::gettitle($env{'form.acts'});
146: # &Apache::lonnet::logthis("Hrrm $env{'form.acts'} -- $verify_title");
147: $verify_title=~s/'/\\'/g;
148: $extra='window.opener.document.forms["'.$env{'form.form'}.'"].elements["'.$env{'form.titleelement'}.'"].value=\''.$verify_title.'\';';
149: }
150: my $js = <<ENDSUBM;
151: <script type="text/javascript">
152: function load() {
153: window.opener.document.forms["$env{'form.form'}"]
154: .elements["$env{'form.element'}"]
155: .value='$env{'form.acts'}';
156: $extra
157: window.close();
158: }
159: </script>
160: ENDSUBM
161: $r->print(&Apache::loncommon::start_page(undef,$js,
162: {'only_body' =>1,
163: 'add_entries' =>
164: {'onload' => "load();"},}
165: ).
166: &Apache::loncommon::end_page());
167: return OK;
168: }
169:
170: # -------------------- refresh environment with user database values (in %hash)
171: &setvalues(\%hash,'form.catalogmode',\%env,'form.catalogmode' );
172:
173: # --------------------- define extra fields and buttons in case of special mode
174: if ($env{'form.catalogmode'} eq 'interactive') {
175: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
176: '<img alt="" src="'.$iconpath.'whitespace1.gif"'.
177: ' border="0" /></td>';
178: $colspan=" colspan='2' ";
179: my $cl=&mt('Close');
180: $closebutton=<<END;
181: <input type="button" name="close" value='$cl' onClick="self.close()" />
182: END
183: }
184: elsif ($env{'form.catalogmode'} eq 'import') {
185: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
186: '<img alt="" src="'.$iconpath.'whitespace1.gif"'.
187: ' border="0" /></td>';
188: $colspan=" colspan='2' ";
189: my $cl=&mt('Close');
190: my $gi=&mt('Import');
191: $closebutton=<<END;
192: <input type="button" name="close" value='$cl' onClick="self.close()" />
193: END
194: $groupimportbutton=<<END;
195: <input type="button" name="groupimport" value='$gi'
196: onClick="javascript:select_group()" />
197: END
198: }
199: # Additions made by Matthew to make the browser a little easier to deal
200: # with in the future.
201: #
202: # $mode (at this time) indicates if we are in edit mode.
203: # $form is the name of the form that the URL is placed when the
204: # selection is made.
205: # $element is the name of the element in $formname which receives
206: # the URL.
207: #&Apache::lonxml::debug('Checking mode, form, element');
208: &setvalues(\%hash,'form.mode' ,\%env,'form.mode' );
209: &setvalues(\%hash,'form.form' ,\%env,'form.form' );
210: &setvalues(\%hash,'form.element' ,\%env,'form.element');
211: &setvalues(\%hash,'form.titleelement',\%env,'form.titleelement');
212: &setvalues(\%hash,'form.only' ,\%env,'form.only' );
213: &setvalues(\%hash,'form.omit' ,\%env,'form.omit' );
214:
215: # Deal with 'omit' and 'only'
216: if (exists $env{'form.omit'}) {
217: @Omit = split(',',$env{'form.omit'});
218: }
219: if (exists $env{'form.only'}) {
220: @Only = split(',',$env{'form.only'});
221: }
222:
223: my $mode = $env{'form.mode'};
224: my ($form,$element,$titleelement);
225: if ($mode eq 'edit' || $mode eq 'parmset') {
226: $form = $env{'form.form'};
227: $element = $env{'form.element'};
228: $titleelement = $env{'form.titleelement'};
229: }
230: #&Apache::lonxml::debug("mode=$mode form=$form element=$element titleelement=$titleelement");
231: # ------ set catalogmodefunctions to have extra needed javascript functionality
232: my $catalogmodefunctions='';
233: if ($env{'form.catalogmode'} eq 'interactive' or
234: $env{'form.catalogmode'} eq 'import') {
235: # The if statement below sets us up to use the old version
236: # by default (ie. if $mode is undefined). This is the easy
237: # way out. Hopefully in the future I'll find a way to get
238: # the calls dealt with in a more comprehensive manner.
239:
240: #
241: # There is now also mode "simple", which is for the simple version of the rat
242: #
243: #
244: if (!defined($mode) || ($mode ne 'edit' && $mode ne 'parmset')) {
245: my $location = "/adm/groupsort?catalogmode=import&";
246: $location .= "mode=".$mode."&";
247: $location .= "acts=";
248: $catalogmodefunctions=<<"END";
249: function select_data(url) {
250: changeURL(url);
251: self.close();
252: }
253: function select_group() {
254: window.location="$location"+document.forms.fileattr.acts.value;
255: }
256: function changeURL(val) {
257: if (opener.inf) {
258: if (opener.inf.document.forms.resinfo.elements.u) {
259: opener.inf.document.forms.resinfo.elements.u.value=val;
260: }
261: }
262: }
263: END
264: } elsif ($mode eq 'edit') { # we are in 'edit' mode
265: my $location = "/adm/groupsort?catalogmode=interactive&";
266: $location .= "form=$form&element=$element&mode=edit&acts=";
267: $catalogmodefunctions=<<END;
268: // mode = $mode
269: function select_data(url) {
270: var location = "/res/?launch=2&form=$form&element=$element&titleelement=$titleelement&acts=" + url;
271: window.location=location;
272: }
273: function select_group() {
274: window.location="$location"+document.forms.fileattr.acts.value;
275: }
276:
277: function changeURL(val) {
278: if (window.opener.document) {
279: window.opener.document.forms["$form"].elements["$element"].value=val;
280: } else {
281: alert("The file you selected is: "+val);
282: }
283: }
284: END
285: if (!$titleelement) {
286: $catalogmodefunctions.='function changeTitle(val) {}';
287: } else {
288: $catalogmodefunctions.=<<END;
289: function changeTitle(val) {
290: if (window.opener.document) {
291: window.opener.document.forms["$form"].elements["$titleelement"].value=val;
292: } else {
293: alert("The title of the file you selected is: "+val);
294: }
295: }
296: END
297: }
298: } elsif ($mode eq 'parmset') {
299: my $location = "/adm/groupsort?catalogmode=interactive&";
300: $location .= "form=$form&element=$element&mode=parmset&acts=";
301: $catalogmodefunctions=<<END;
302: // mode = $mode
303: function select_data(url) {
304: changeURL(url);
305: self.close();
306: }
307:
308: function select_group() {
309: window.location="$location"+document.forms.fileattr.acts.value;
310: }
311:
312: function changeURL(val) {
313: if (window.opener.document) {
314: var elementname = "$element"+"_value";
315: var checkboxname = "$element"+"_setparmval";
316: window.opener.document.forms["$form"].elements[elementname].value=val;
317: window.opener.document.forms["$form"].elements[checkboxname].checked=true;
318: } else {
319: alert("The file you selected is: "+val);
320: }
321: }
322:
323: END
324: }
325: }
326: $catalogmodefunctions.=<<END;
327: var acts='';
328: function rep_dirpath(suffix,val) {
329: eval("document.forms.dirpath"+suffix+".acts.value=val");
330: }
331: END
332: if ($env{'form.catalogmode'} eq 'import') {
333: $catalogmodefunctions.=<<END;
334: function queue(val) {
335: if (eval("document.forms."+val+".filelink.checked")) {
336: var l=val.length;
337: var v=val.substring(4,l);
338: document.forms.fileattr.acts.value+='1a'+v+'b';
339: }
340: else {
341: var l=val.length;
342: var v=val.substring(4,l);
343: document.forms.fileattr.acts.value+='0a'+v+'b';
344: }
345: }
346: END
347: }
348:
349: # ---------------------------------------------------------------- Print Header
350: my $js = <<"ENDHEADER";
351: <script type="text/javascript">
352: $catalogmodefunctions
353: function checkAll(dir) {
354: var numForms = document.forms.length;
355: var dirLength = dir.length;
356: for (i=0;i<numForms;i++) {
357: var numElements = document.forms[i].elements.length;
358: for (j=0;j<numElements;j++){
359: var fieldVal = document.forms[i].elements[j].value;
360: var comp = fieldVal.substr(0,dirLength);
361: if ((comp == dir) && (dirLength < fieldVal.length)) {
362: //alert(document.forms[i].elements[j].value);
363: }
364: }
365: }
366: }
367: function openWindow(url, wdwName, w, h, toolbar,scrollbar,locationbar) {
368: var xpos = (screen.width-w)/2;
369: xpos = (xpos < 0) ? '0' : xpos;
370: var ypos = (screen.height-h)/2-30;
371: ypos = (ypos < 0) ? '0' : ypos;
372: var options = "width=" + w + ",height=" + h + ",screenx="+xpos+",screeny="+ypos+",";
373: options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
374: options += "menubar=no,toolbar="+toolbar+",location="+locationbar+",directories=no";
375: var newWin = window.open(url, wdwName, options);
376: newWin.focus();
377: }
378: function gothere(val) {
379: window.location=val+'?acts='+document.forms.fileattr.acts.value;
380: }
381: </script>
382: ENDHEADER
383:
384: my ($headerdom)=($uri=~m{^/res/($match_domain)/});
385: $r->print(&Apache::loncommon::start_page('Browse Resources',$js,
386: {'domain' => $headerdom,}));
387: # - Evaluate actions from previous page (both cumulatively and chronologically)
388: if ($env{'form.catalogmode'} eq 'import') {
389: my $acts=$env{'form.acts'};
390: my @Acts=split(/b/,$acts);
391: my %ahash;
392: my %achash;
393: my $ac=0;
394: # some initial hashes for working with data
395: foreach (@Acts) {
396: my ($state,$ref)=split(/a/);
397: $ahash{$ref}=$state;
398: $achash{$ref}=$ac;
399: $ac++;
400: }
401: # sorting through the actions and changing the global database hash
402: foreach (sort {$achash{$a}<=>$achash{$b}} (keys %ahash)) {
403: my $key=$_;
404: if ($ahash{$key} eq '1') {
405: $hash{'store_'.$hash{'pre_'.$key.'_link'}}=
406: $hash{'pre_'.$key.'_title'};
407: $hash{'storectr_'.$hash{'pre_'.$key.'_link'}}=
408: $hash{'storectr'}+0;
409: $hash{'storectr'}++;
410: }
411: if ($ahash{$key} eq '0') {
412: if ($hash{'store_'.$hash{'pre_'.$key.'_link'}}) {
413: delete $hash{'store_'.$hash{'pre_'.$key.'_link'}};
414: }
415: }
416: }
417: # deleting the previously cached listing
418: foreach (keys %hash) {
419: if ($_ =~ /^pre_/ && $_ =~/link$/) {
420: my $key = $_;
421: $key =~ s/^pre_//;
422: $key =~ s/_[^_]*$//;
423: delete $hash{'pre_'.$key.'_title'};
424: delete $hash{'pre_'.$key.'_link'};
425: }
426: }
427: }
428:
429: # ---------------------------------- get state of file attributes to be showing
430: if ($env{'form.attrs'}) {
431: for (my $i=0; $i<=11; $i++) {
432: delete $hash{'display_attrs_'.$i};
433: if ($env{'form.attr'.$i} == 1) {
434: $attrchk[$i] = 'checked';
435: $hash{'display_attrs_'.$i} = 1;
436: }
437: }
438: } else {
439: for (my $i=0; $i<=11; $i++) {
440: $attrchk[$i] = 'checked' if $hash{'display_attrs_'.$i} == 1;
441: }
442: }
443:
444: # ------------------------------- output state of file attributes to be showing
445: # All versions has to the last item
446: # since it does not take an extra col
447: my %lt=&Apache::lonlocal::texthash(
448: 'ti' => 'Title',
449: 'si' => 'Size',
450: 'la' => 'Last access',
451: 'lm' => 'Last modified',
452: 'st' => 'Statistics',
453: 'au' => 'Author',
454: 'kw' => 'Keywords',
455: 'ln' => 'Language',
456: 'sa' => 'Source Available',
457: 'sr' => 'Show resource',
458: 'li' => 'Linked/Related Resources',
459: 'av' => 'All versions',
460: 'ud' => 'Update Display'
461: );
462: $r->print(<<END);
463: <form method="post" name="fileattr" action="$uri"
464: enctype="application/x-www-form-urlencoded">
465: <label><input type="checkbox" name="attr9" value="1" $attrchk[9] onClick="this.form.submit();" /> $lt{'av'}</label>
466: <table border="0">
467: <tr>
468: <td><label><input type="checkbox" name="attr0" value="1" $attrchk[0] onClick="this.form.submit();" /> $lt{'ti'}</label></td>
469: <td><label><input type="checkbox" name="attr4" value="1" $attrchk[4] onClick="this.form.submit();" /> $lt{'au'}</label></td>
470: <td><label><input type="checkbox" name="attr5" value="1" $attrchk[5] onClick="this.form.submit();" /> $lt{'kw'}</label></td>
471: <td><label><input type="checkbox" name="attr6" value="1" $attrchk[6] onClick="this.form.submit();" /> $lt{'ln'}</label></td>
472: </tr>
473: <tr>
474: <td><label><input type="checkbox" name="attr1" value="1" $attrchk[1] onClick="this.form.submit();" /> $lt{'si'}</label></td>
475: <td><label><input type="checkbox" name="attr2" value="1" $attrchk[2] onClick="this.form.submit();" /> $lt{'la'}</label></td>
476: <td><label><input type="checkbox" name="attr3" value="1" $attrchk[3] onClick="this.form.submit();" /> $lt{'lm'}</label></td>
477: <td><label><input type="checkbox" name="attr10" value="1" $attrchk[10] onClick="this.form.submit();" /> $lt{'sa'}</label></td>
478: </tr>
479: <tr>
480: <td><label><input type="checkbox" name="attr8" value="1" $attrchk[8] onClick="this.form.submit();" /> $lt{'st'}</label></td>
481: <td><label><input type="checkbox" name="attr11" value="1" $attrchk[11] onClick="this.form.submit();" /> $lt{'li'}</label></td>
482: <td><label><input type="checkbox" name="attr7" value="1" $attrchk[7] onClick="this.form.submit();" /> $lt{'sr'}</label></td>
483: <td> </td>
484: </tr>
485: </table>
486: <input type="hidden" name="attrs" value="1" />
487: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
488: <input type="hidden" name="acts" value="" />
489: $closebutton $groupimportbutton
490: END
491: # -------------- Filter out sequence containment in crumbs and "recent folders"
492: my $storeuri=$uri;
493: $storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
494: $storeuri=~s/\/+/\//g;
495: # ---------------------------------------------------------------- Bread crumbs
496: $r->print(&Apache::lonhtmlcommon::crumbs($storeuri,'','',
497: (($env{'form.catalogmode'} eq 'import')?
498: 'document.forms.fileattr':'')).
499: &Apache::lonhtmlcommon::select_recent('residx','resrecent',
500: '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();'));
501: # -------------------------------------------------------- Resource Home Button
502: my $reshome=$env{'course.'.$env{'request.course.id'}.'.reshome'};
503: if ($reshome) {
504: $r->print("<font size='+2'><a href='");
505: if ($env{'form.catalogmode'} eq 'import') {
506: $r->print('javascript:document.forms.fileattr.action="'.$reshome.'";document.forms.fileattr.submit();');
507: } else {
508: $r->print($reshome);
509: }
510: $r->print("'>".&mt('Home').'</a></font>');
511: }
512: $r->print('</form>');
513: # ------------------------------------------------------ Remember where we were
514: &Apache::loncommon::storeresurl($storeuri);
515: &Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
516: # ----------------- output starting row to the indexed file/directory hierarchy
517: my $titleclr="#ddffff";
518: #$r->print(&initdebug());
519: #$r->print(&writedebug("Omit:@Omit")) if (@Omit);
520: #$r->print(&writedebug("Only:@Only")) if (@Only);
521: $r->print('<table width="100%" border="0"><tr><td bgcolor="#777777">'."\n");
522: $r->print('<table width="100%" border="0"><tr bgcolor="'.$titleclr.'">'."\n");
523: $r->print("<td $colspan><b>".&mt('Name')."</b></td>\n");
524: $r->print("<td><b>".&mt('Title')."</b></td>\n")
525: if ($hash{'display_attrs_0'} == 1);
526: $r->print("<td align=right><b>".&mt("Size")." (".&mt("bytes").") ".
527: "</b></td>\n") if ($hash{'display_attrs_1'} == 1);
528: $r->print("<td><b>".&mt("Last accessed")."</b></td>\n")
529: if ($hash{'display_attrs_2'} == 1);
530: $r->print("<td><b>".&mt("Last modified")."</b></td>\n")
531: if ($hash{'display_attrs_3'} == 1);
532: $r->print("<td><b>".&mt("Author(s)")."</b></td>\n")
533: if ($hash{'display_attrs_4'} == 1);
534: $r->print("<td><b>".&mt("Keywords")."</b></td>\n")
535: if ($hash{'display_attrs_5'} == 1);
536: $r->print("<td><b>".&mt("Language")."</b></td>\n")
537: if ($hash{'display_attrs_6'} == 1);
538: $r->print("<td><b>".&mt("Usage Statistics")." <br />(".
539: &mt("Courses/Network Hits").")</b> ".&mt('updated periodically')."</td>\n")
540: if ($hash{'display_attrs_8'} == 1);
541: $r->print("<td><b>".&mt("Source Available")."</b></td>\n")
542: if ($hash{'display_attrs_10'} == 1);
543: $r->print("<td><b>".&mt("Linked/Related Resources")."</b></td>\n")
544: if ($hash{'display_attrs_11'} == 1);
545: $r->print("<td><b>".&mt("Resource")."</b></td>\n")
546: if ($hash{'display_attrs_7'} == 1);
547: $r->print('</tr>');
548:
549: # ----------------- read in what directories have previously been set to "open"
550: foreach (keys %hash) {
551: if ($_ =~ /^diropen_status_/) {
552: my $key = $_;
553: $key =~ s/^diropen_status_//;
554: $dirs{$key} = $hash{$_};
555: }
556: }
557:
558: if ($env{'form.openuri'}) { # take care of review and refresh options
559: my $uri=$env{'form.openuri'};
560: if (exists($hash{'diropen_status_'.$uri})) {
561: my $cursta = $hash{'diropen_status_'.$uri};
562: $dirs{$uri} = 'open';
563: $hash{'diropen_status_'.$uri} = 'open';
564: if ($cursta eq 'open') {
565: $dirs{$uri} = 'closed';
566: $hash{'diropen_status_'.$uri} = 'closed';
567: }
568: } else {
569: $hash{'diropen_status_'.$uri} = 'open';
570: $dirs{$uri} = 'open';
571: }
572: }
573:
574: my $toplevel;
575: my $indent = 0;
576: $uri = $uri.'/' if $uri !~ /.*\/$/;
577:
578: if ($env{'form.dirPointer'} ne 'on') {
579: $hash{'top.level'} = $uri;
580: $toplevel = $uri;
581: } else {
582: $toplevel = $hash{'top.level'};
583: }
584:
585: # -------------------------------- if not at top level, provide an uplink arrow
586: if ($toplevel ne '/res/'){
587: my (@uri_com) = split(/\//,$uri);
588: pop @uri_com;
589: my $upone = join('/',@uri_com);
590: my @list = qw (0);
591: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
592: $indent = 1;
593: }
594:
595: # -------- recursively go through all the directories and output as appropriate
596: &scanDir ($r,$toplevel,$indent,\%hash);
597:
598:
599: # -------------------------------------------------------------- end the tables
600: $r->print('</table>');
601: # ---------------------------- embed hidden information useful for group import
602: $r->print("<form name='fnum' action=''>");
603: $r->print("<input type='hidden' name='fnum' value='$fnum' /></form>");
604: # -------------------------------------------------------------- end the tables
605: $r->print('</td></tr></table>');
606:
607: # --------------------------------------------------- end the output and return
608: $r->print(&Apache::loncommon::end_page()."\n");
609: }
610: if(! $c->aborted()) {
611: # write back into the temporary file
612: my %dbfile;
613: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
614: while (my($key,$value) = each(%hash)) {
615: $dbfile{$key}=$value;
616: }
617: untie(%dbfile);
618: }
619: }
620:
621: return OK;
622: }
623:
624: # ----------------------------------------------- recursive scan of a directory
625: sub scanDir {
626: my ($r,$startdir,$indent,$hashref)=@_;
627: my $c = $r->connection();
628: my ($compuri,$curdir);
629: my $dirptr=16384;
630: my $obs;
631: $indent++;
632: my %dupdirs = %dirs;
633: my @list=&get_list($r,$startdir);
634: foreach my $line (@list) {
635: return if ($c->aborted());
636: #This is a kludge, sorry aboot this
637: my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
638: next if($strip =~ /.*\.meta$/ | $obs eq '1');
639: my (@fileparts) = split(/\./,$strip);
640: if ($hash{'display_attrs_9'} != 1) {
641: # if not all versions to be shown
642: if (scalar(@fileparts) >= 3) {
643: my $fext = pop @fileparts;
644: my $ov = pop @fileparts;
645: my $fname = join ('.',@fileparts,$fext);
646: next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
647: }
648: }
649:
650: if ($dom eq 'domain') {
651: # dom list has full path /res/<domain name>/ already
652: $curdir='';
653: $compuri = (split(/\&/,$line))[0];
654: } else {
655: # user, dir & file have name only, i.e., w/o path
656: $compuri = join('',$startdir,$strip,'/');
657: $curdir = $startdir;
658: }
659: my $diropen = 'closed';
660: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
661: while (my ($key,$val)= each %dupdirs) {
662: if ($key eq $compuri and $val eq "open") {
663: $diropen = "opened";
664: delete($dupdirs{$key});
665: delete($dirs{$key});
666: }
667: }
668: }
669: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
670: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
671: }
672: $indent--;
673: }
674:
675: # --------------- get complete matched list based on the uri (returns an array)
676: sub get_list {
677: my ($r,$uri)=@_;
678: my @list=();
679: (my $luri = $uri) =~ s/\//_/g;
680: if ($env{'form.updatedisplay'}) {
681: foreach (keys %hash) {
682: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
683: delete $hash{$_} if ($_ =~ /^dirlist_timestamp_files_/);
684: }
685: }
686:
687: if (defined($hash{'dirlist_files_'.$luri}) &&
688: $hash{'dirlist_timestamp_files_'.$luri}+600 > (time)) {
689: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
690: } elsif ($uri=~/\.(page|sequence)\/$/) {
691: # is a page or a sequence
692: $uri=~s/\/$//;
693: $uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
694: $uri=~s/\/+/\//g;
695: foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
696: my @ratpart=split(/\:/,$_);
697: push(@list,&LONCAPA::map::qtescape($ratpart[1]));
698: }
699: $hash{'dirlist_files_'.$luri} = join("\n",@list);
700: } else {
701: # is really a directory
702: @list = &Apache::lonnet::dirlist($uri);
703: $hash{'dirlist_files_'.$luri} = join("\n",@list);
704: $hash{'dirlist_timestamp_files_'.$luri} = time;
705: }
706: return @list=&match_ext($r,@list);
707: }
708:
709: sub dynmetaread {
710: my $uri=shift;
711: if (($hash{'display_attrs_8'}==1) || ($hash{'display_attrs_11'}==1)) {
712: # We don't want the filename
713: $uri=~s/\/[^\/]+$//;
714: # Did we already see this?
715: my $builddir=$uri;
716: while ($builddir) {
717: if ($dynread{$builddir}) {
718: return 0;
719: }
720: $builddir=~s/\/[^\/]+$//;
721: }
722: # Actually get the data
723: %dynhash=
724: (%dynhash,&Apache::lonmeta::get_dynamic_metadata_from_sql($uri.'/'));
725: # Remember that we got it
726: $dynread{$uri}=1;
727: }
728: }
729:
730: sub initdebug {
731: my $start_page=
732: &Apache::loncommon::start_page('Debug',undef,
733: {'only_body' => 1,});
734: $start_page =~ s/\n/ /g;
735: return <<ENDJS;
736: <script type="text/javascript">
737: var debugging = true;
738: if (debugging) {
739: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
740: }
741:
742: function output(text) {
743: if (debugging) {
744: debuggingWindow.document.writeln(text);
745: }
746: }
747: output('$start_page<pre>');
748: </script>
749: ENDJS
750: }
751:
752: sub writedebug {
753: my ($text) = @_;
754: return "<script type=\"text/javascript\">output('$text');</script>";
755: }
756:
757: # -------------------- filters out files based on extensions (returns an array)
758: sub match_ext {
759: my ($r,@packlist)=@_;
760: my @trimlist;
761: my $nextline;
762: my @fileext;
763: my $dirptr=16384;
764:
765: foreach my $line (@packlist) {
766: chomp $line;
767: $line =~ s/^\/home\/httpd\/html//;
768: my @unpackline = split (/\&/,$line);
769: next if ($unpackline[0] eq '.');
770: next if ($unpackline[0] eq '..');
771: my @filecom = split (/\./,$unpackline[0]);
772: my $fext = pop(@filecom);
773: my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
774: if ($fnptr == 0 and $unpackline[3] ne "") {
775: my $embstyle = &Apache::loncommon::fileembstyle($fext);
776: push @trimlist,$line if (defined($embstyle) &&
777: ($embstyle ne 'hdn' or $fext eq 'meta'));
778: } else {
779: push @trimlist,$line;
780: }
781: }
782: @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
783: return @trimlist;
784: }
785:
786: # ------------------------------- displays one line in appropriate table format
787: sub display_line {
788: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
789: my (@pathfn, $fndir);
790: # there could be relative paths (files actually belonging into this directory)
791: # or absolute paths (for example, from sequences)
792: my $absolute;
793: my $pathprefix;
794: if ($line=~m|^/res/| && $startdir ne '') {
795: $absolute=1;
796: $pathprefix='';
797: } else {
798: $absolute=0;
799: $pathprefix=$startdir;
800: }
801: my $dirptr=16384;
802: my $fileclr="#ffffe6";
803: my $iconpath= $r->dir_config('lonIconsURL') . '/';
804:
805: my @filecom = split (/\&/,$line);
806: my @pathcom = split (/\//,$filecom[0]);
807: my $listname = $pathcom[scalar(@pathcom)-1];
808: my $fnptr = $filecom[3]&$dirptr;
809: my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
810: $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
811:
812: my $tabtag='</td>';
813: my $i=0;
814: while ($i<=11) {
815: $tabtag=join('',$tabtag,"<td> </td>")
816: if ($i != 9 &&
817: $hash{'display_attrs_'.$i} == 1);
818: $i++;
819: }
820: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
821:
822: # display uplink arrow
823: if ($filecom[1] eq 'viewOneUp') {
824: my $updir=$startdir;
825: # -------------- Filter out sequence containment in crumbs and "recent folders"
826: $updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
827: $updir=~s/\/+/\//g;
828:
829: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
830: $r->print("<td>\n");
831: $r->print ('<form method="post" name="dirpathUP" action="'.$updir.
832: '/" '.
833: 'onSubmit="return rep_dirpath(\'UP\','.
834: 'document.forms.fileattr.acts.value)" '.
835: 'enctype="application/x-www-form-urlencoded"'.
836: '>'."\n");
837: $r->print ('<input type=hidden name=openuri value="'.
838: $startdir.'" />'."\n");
839: $r->print ('<input type="hidden" name="acts" value="" />'."\n");
840: $r->print ('<input src="'.$iconpath.'arrow_up.gif"');
841: $r->print (' name="'.$msg.'" height="22" type="image" border="0" />'.
842: "\n");
843: $r->print(&mt("Up")."</form>$tabtag</tr>\n");
844: return OK;
845: }
846: # Do we have permission to look at this?
847:
848: if($filecom[15] ne '1') { return OK if (!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])); }
849:
850: # make absolute links appear on different background
851: if ($absolute) { $fileclr='#ccdd99'; }
852:
853: # display domain
854: if ($filecom[1] eq 'domain') {
855: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n")
856: if ($env{'form.dirPointer'} eq "on");
857: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
858: $r->print("<td>");
859: &begin_form ($r,$filecom[0]);
860: my $anchor = $filecom[0];
861: $anchor =~ s/\///g;
862: $r->print ('<a name="'.$anchor.'"></a>');
863: $r->print ('<input type="hidden" name="acts" value="" />');
864: $r->print ('<input src="'.$iconpath.'folder_pointer_'.
865: $diropen.'.gif"');
866: $r->print (' name="'.$msg.'" height="22" type="image" border="0" />'.
867: "\n");
868: my $quotable_filecom = &Apache::loncommon::escape_single($filecom[0]);
869: $r->print ('<a href="javascript:gothere(\''.$quotable_filecom.
870: '\')"><img alt="" src="'.$iconpath.'server.gif"');
871: $r->print (' border="0" /></a>'."\n");
872: $r->print (&mt("Domain")." - $listname ");
873: if (&Apache::lonnet::domain($listname,'description')) {
874: $r->print("(".&Apache::lonnet::domain($listname,'description').
875: ")");
876: }
877: $r->print ("</form>$tabtag</tr>\n");
878: return OK;
879:
880: # display user directory
881: }
882: if ($filecom[1] eq 'user') {
883: # $r->print("<tr valign=$valign bgcolor=\"$fileclr\">$extrafield");
884: my $curdir = $startdir.$filecom[0].'/';
885: my $anchor = $curdir;
886: $anchor =~ s/\///g;
887: $r->print("<tr valign=$valign bgcolor=\"$fileclr\">");
888: $r->print("<td>\n");
889: $r->print("<input type=\"checkbox\" name=\"tester\" value=\"$curdir\" onClick=\"javascript:checkAll('$curdir')\" /></td>\n");
890: $r->print("<td nowrap>\n");
891: &begin_form ($r,$curdir);
892: $r->print ('<a name="'.$anchor.'"></a><img alt="" src="'.$iconpath.
893: 'whitespace1.gif" border="0" />'."\n");
894: $r->print ('<input type="hidden" name="acts" value="" />');
895: $r->print ('<input src="'.$iconpath.'folder_pointer_'.$diropen.
896: '.gif"');
897: $r->print (' name="'.$msg.'" height="22" type="image" border="0" />'.
898: "\n");
899: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
900: $r->print ('<a href="javascript:gothere(\''.$quotable_curdir
901: .'\')"><img alt="" src='.
902: $iconpath.'quill.gif border="0" name="'.$msg.
903: '" height="22" /></a>');
904: my $domain=(split(m|/|,$startdir))[2];
905: my $plainname=&Apache::loncommon::plainname($listname,$domain);
906: $r->print ($listname);
907: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
908: $r->print ('</form>'.$tabtag.'</tr>'."\n");
909: return OK;
910: }
911:
912: # display file
913: if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
914: my $filelink = $pathprefix.$filecom[0];
915: my @file_ext = split (/\./,$listname);
916: my $curfext = $file_ext[-1];
917: if (@Omit) {
918: foreach (@Omit) { return OK if ($curfext eq $_); }
919: }
920: if (@Only) {
921: my $skip = 1;
922: foreach (@Only) { $skip = 0 if ($curfext eq $_); }
923: return OK if ($skip > 0);
924: }
925: # Set the icon for the file
926: my $iconname = &Apache::loncommon::icon($listname);
927: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\"><td nowrap='nowrap' valign='top'>");
928:
929: if ($env{'form.catalogmode'} eq 'interactive') {
930: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
931: $r->print("<a href=\"javascript:select_data(\'",
932: $quotable_filelink,"')\">");
933: $r->print("<img alt=\"\" src='",$iconpath,"select.gif' border='0' /></a>".
934: "\n");
935: $r->print("</td><td nowrap='nowrap' valign='top'>");
936: } elsif ($env{'form.catalogmode'} eq 'import') {
937: $r->print("<form name='form$fnum' action=''>\n");
938: $r->print("<input type='checkbox' name='filelink"."' ".
939: "value='$filelink' onClick='".
940: "javascript:queue(\"form$fnum\")' ");
941: if ($hash{'store_'.$filelink}) {
942: $r->print("checked");
943: }
944: $r->print(" />\n");
945: $r->print("</form></td><td nowrap='nowrap' valign='top'>");
946: $hash{"pre_${fnum}_link"}=$filelink;
947: $fnum++;
948: }
949: # Form to open or close sequences
950: if ($filelink=~/\.(page|sequence)$/) {
951: my $curdir = $startdir.$filecom[0].'/';
952: my $anchor = $curdir;
953: $anchor =~ s/\///g;
954: &begin_form($r,$curdir);
955: $indent--;
956: }
957: # General indentation
958: if ($indent > 0 and $indent < 11) {
959: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$indent,
960: ".gif border='0' />\n");
961: } elsif ($indent >0) {
962: my $ten = int($indent/10.);
963: my $rem = $indent%10.0;
964: my $count = 0;
965: while ($count < $ten) {
966: $r->print("<img alt=\"\" src=",$iconpath,
967: "whitespace10.gif border='0' />\n");
968: $count++;
969: }
970: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
971: ".gif border='0' />\n") if $rem > 0;
972: }
973: # Sequence open/close icon
974: if ($filelink=~/\.(page|sequence)$/) {
975: my $curdir = $startdir.$filecom[0].'/';
976: my $anchor = $curdir;
977: $anchor =~ s/\///g;
978: $r->print ('<input type="hidden" name="acts" value="" />');
979: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
980: 'folder_pointer_'.$diropen.'.gif"');
981: $r->print (' name="'.$msg.'" height="22" type="image" border="0" />'.
982: "\n");
983: }
984: # Filetype icons
985: $r->print("<img alt=\"\" src='$iconname' border='0' />\n");
986: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
987:
988:
989: $r->print (" <a href=\"javascript:openWindow('".$quotable_filelink.
990: "', 'previewfile', '450', '500', 'no', 'yes','yes');\"".
991: " target=\"_self\">$listname</a> ");
992:
993: $r->print (" (<a href=\"javascript:openWindow('".$quotable_filelink.
994: ".meta', 'metadatafile', '500', '550', 'no', 'yes','no');\" ".
995: " target=\"_self\">metadata</a>) ");
996: # Close form to open/close sequence
997: if ($filelink=~/\.(page|sequence)$/) {
998: $r->print('</form>');
999: }
1000: $r->print("</td>\n");
1001: if ($hash{'display_attrs_0'} == 1) {
1002: my $title = &Apache::lonnet::gettitle($filelink,'title');
1003: $r->print('<td> '.($title eq '' ? ' ' : $title).
1004: ' </td>'."\n");
1005: }
1006: $r->print('<td align=right> ',
1007: $filecom[8]," </td>\n")
1008: if $hash{'display_attrs_1'} == 1;
1009: $r->print('<td> '.
1010: (localtime($filecom[9]))." </td>\n")
1011: if $hash{'display_attrs_2'} == 1;
1012: $r->print('<td> '.
1013: (localtime($filecom[10]))." </td>\n")
1014: if $hash{'display_attrs_3'} == 1;
1015:
1016: if ($hash{'display_attrs_4'} == 1) {
1017: my $author = &Apache::lonnet::metadata($filelink,'author');
1018: $r->print('<td> '.($author eq '' ? ' ' : $author).
1019: " </td>\n");
1020: }
1021: if ($hash{'display_attrs_5'} == 1) {
1022: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1023: # $keywords = ' ' if (!$keywords);
1024: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1025: " </td>\n");
1026: }
1027: #'
1028:
1029: if ($hash{'display_attrs_6'} == 1) {
1030: my $lang = &Apache::lonnet::metadata($filelink,'language');
1031: $lang = &Apache::loncommon::languagedescription($lang);
1032: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1033: " </td>\n");
1034: }
1035: if ($hash{'display_attrs_8'} == 1) {
1036: # statistics
1037: &dynmetaread($filelink);
1038: $r->print("<td>");
1039: &dynmetaprint($r,$filelink,'count');
1040: &dynmetaprint($r,$filelink,'course');
1041: &dynmetaprint($r,$filelink,'stdno');
1042: &dynmetaprint($r,$filelink,'avetries');
1043: &dynmetaprint($r,$filelink,'difficulty');
1044: &dynmetaprint($r,$filelink,'disc');
1045: &dynmetaprint($r,$filelink,'clear');
1046: &dynmetaprint($r,$filelink,'technical');
1047: &dynmetaprint($r,$filelink,'correct');
1048: &dynmetaprint($r,$filelink,'helpful');
1049: &dynmetaprint($r,$filelink,'depth');
1050: $r->print(" </td>\n");
1051:
1052: }
1053: if ($hash{'display_attrs_10'} == 1) {
1054: my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
1055: if($source eq 'open') {
1056: my $sourcelink = &Apache::lonsource::make_link($filelink,$listname);
1057: my $quotable_sourcelink = &Apache::loncommon::escape_single($sourcelink);
1058: $r->print('<td>'."<a href=\"javascript:openWindow('"
1059: .$quotable_sourcelink.
1060: "', 'previewsource', '700', '700', 'no', 'yes','yes');\"".
1061: " target=\"_self\">Yes</a> "."</td>\n");
1062: } else { #A cuddled else. :P
1063: $r->print("<td> </td>\n");
1064: }
1065: }
1066: if ($hash{'display_attrs_11'} == 1) {
1067: # links
1068: &dynmetaread($filelink);
1069: $r->print('<td>');
1070: &coursecontext($r,$filelink);
1071: &dynmetaprint($r,$filelink,'goto_list');
1072: &dynmetaprint($r,$filelink,'comefrom_list');
1073: &dynmetaprint($r,$filelink,'sequsage_list');
1074: &dynmetaprint($r,$filelink,'dependencies');
1075: &dynmetaprint($r,$filelink,'course_list');
1076: $r->print('</td>');
1077: }
1078: if ($hash{'display_attrs_7'} == 1) {
1079: # Show resource
1080: my $output=&showpreview($filelink);
1081: $r->print('<td> '.($output eq '' ? ' ':$output).
1082: " </td>\n");
1083: }
1084: $r->print("</tr>\n");
1085: }
1086:
1087: # -- display directory
1088: if ($fnptr == $dirptr) {
1089: my $curdir = $startdir.$filecom[0].'/';
1090: my $anchor = $curdir;
1091: $anchor =~ s/\///g;
1092: $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
1093: &begin_form ($r,$curdir);
1094: my $indentm1 = $indent-1;
1095: if ($indentm1 < 11 and $indentm1 > 0) {
1096: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$indentm1,
1097: ".gif border='0' />\n");
1098: } else {
1099: my $ten = int($indentm1/10.);
1100: my $rem = $indentm1%10.0;
1101: my $count = 0;
1102: while ($count < $ten) {
1103: $r->print ("<img alt=\"\" src=",$iconpath
1104: ,"whitespace10.gif border='0' />\n");
1105: $count++;
1106: }
1107: $r->print ("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
1108: ".gif border='0' />\n") if $rem > 0;
1109: }
1110: $r->print ('<input type="hidden" name="acts" value="" />');
1111: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
1112: 'folder_pointer_'.$diropen.'.gif"');
1113: $r->print (' name="'.$msg.'" height="22" type="image" border="0" />'.
1114: "\n");
1115: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
1116: $r->print ('<a href="javascript:gothere(\''
1117: .$quotable_curdir.'\')">'
1118: .'<img alt="'.&mt('Open Folder').'"src="'.
1119: $iconpath.'folder_'.$diropen.'.gif" border="0" /></a>'.
1120: "\n");
1121: $r->print ("$listname</form></td>\n");
1122: # Attributes
1123: my $filelink = $startdir.$filecom[0].'/default';
1124:
1125: if ($hash{'display_attrs_0'} == 1) {
1126: my $title = &Apache::lonnet::gettitle($filelink,'title');
1127: $r->print('<td> '.($title eq '' ? ' ' : $title).
1128: ' </td>'."\n");
1129: }
1130: $r->print('<td align=right> ',
1131: $filecom[8]," </td>\n")
1132: if $hash{'display_attrs_1'} == 1;
1133: $r->print('<td> '.
1134: (localtime($filecom[9]))." </td>\n")
1135: if $hash{'display_attrs_2'} == 1;
1136: $r->print('<td> '.
1137: (localtime($filecom[10]))." </td>\n")
1138: if $hash{'display_attrs_3'} == 1;
1139:
1140: if ($hash{'display_attrs_4'} == 1) {
1141: my $author = &Apache::lonnet::metadata($filelink,'author');
1142: $r->print('<td> '.($author eq '' ? ' ' : $author).
1143: " </td>\n");
1144: }
1145: if ($hash{'display_attrs_5'} == 1) {
1146: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1147: # $keywords = ' ' if (!$keywords);
1148: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1149: " </td>\n");
1150: }
1151: if ($hash{'display_attrs_6'} == 1) {
1152: my $lang = &Apache::lonnet::metadata($filelink,'language');
1153: $lang = &Apache::loncommon::languagedescription($lang);
1154: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1155: " </td>\n");
1156: }
1157: if ($hash{'display_attrs_8'} == 1) {
1158: $r->print('<td> </td>');
1159: }
1160: if ($hash{'display_attrs_10'} == 1) {
1161: $r->print('<td> </td>');
1162: }
1163: if ($hash{'display_attrs_11'} == 1) {
1164: $r->print('<td> </td>');
1165: }
1166: if ($hash{'display_attrs_7'} == 1) {
1167: $r->print('<td> </td>');
1168: }
1169: $r->print('</tr>');
1170: }
1171:
1172: }
1173:
1174: sub coursecontext {
1175: my ($r,$filelink)=@_;
1176: my $filesymb=&Apache::lonnet::symbread($filelink);
1177: if ($filesymb) {
1178: my ($map,$index,$resource)=&Apache::lonnet::decode_symb($filesymb);
1179: $r->print(&mt('Already in this course:<br />[_1] in folder/map [_2].<br />',
1180: &Apache::lonnet::gettitle($resource),
1181: &Apache::lonnet::gettitle($map)));
1182: }
1183: }
1184:
1185: sub showpreview {
1186: my ($filelink)=@_;
1187: if ($filelink=~m-^(/ext/|http://)-) {
1188: return &mt('External Resource, preview not enabled');
1189: }
1190: my ($curfext)=($filelink=~/\.(\w+)$/);
1191: my $output='';
1192: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
1193: if ($embstyle eq 'ssi') {
1194: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
1195: '.tmp';
1196: if ((!$env{'form.updatedisplay'}) &&
1197: (-e $cache)) {
1198: open(FH,$cache);
1199: $output=join("\n",<FH>);
1200: close(FH);
1201: } else {
1202: # In update display mode, remove old cache. This is done to retroactively
1203: # clean up course context renderings.
1204: if (-e $cache) {
1205: unlink($cache);
1206: }
1207: $output=&Apache::lonnet::ssi_body($filelink);
1208: # Is access denied? Don't render, don't store
1209: if ($output=~/LONCAPAACCESSCONTROLERRORSCREEN/s) {
1210: $output='';
1211: # Was this rendered in course content? Don't store
1212: } elsif (!&Apache::lonnet::symbread($filelink)) {
1213: open(FH,">$cache");
1214: print FH $output;
1215: close(FH);
1216: }
1217: }
1218: $output='<font size="-2">'.$output.'</font>';
1219: } elsif ($embstyle eq 'img') {
1220: $output='<img alt="'.&mt('Preview').'" src="'.$filelink.'" />';
1221: } elsif ($filelink=~m{^/res/($match_domain)/($match_username)/}) {
1222: $output='<img alt="'.&mt('Preview').'" src="http://'.
1223: &Apache::lonnet::hostname(&Apache::lonnet::homeserver($2,$1)).
1224: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1225: }
1226: return $output;
1227: }
1228:
1229: sub dynmetaprint {
1230: my ($r,$filelink,$item)=@_;
1231: if ($dynhash{$filelink}->{$item}) {
1232: $r->print("\n<br />".$fieldnames{$item}.': '.
1233: &Apache::lonmeta::prettyprint($item,
1234: $dynhash{$filelink}->{$item},
1235: (($env{'form.catalogmode'} ne 'import')?'preview':''),
1236: '',
1237: (($env{'form.catalogmode'} eq 'import')?'document.forms.fileattr':''),1));
1238: }
1239: }
1240:
1241: # ------------------- prints the beginning of a form for directory or file link
1242: sub begin_form {
1243: my ($r,$uri) = @_;
1244: my $anchor = $uri;
1245: $anchor =~ s/\///g;
1246: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1247: '#'.$anchor.
1248: '" onSubmit="return rep_dirpath(\''.$dnum.'\''.
1249: ',document.forms.fileattr.acts.value)" '.
1250: 'enctype="application/x-www-form-urlencoded">'."\n");
1251: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'" />'.
1252: "\n");
1253: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n");
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
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to lonindexer.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / interface