1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.137 2005/11/14 23:17:12 albertel 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:
58: # ---------------------------------------- variables used throughout the module
59: my %hash; # global user-specific gdbm file
60: my %dirs; # keys are directories, values are the open/close status
61: my %language; # has the reference information present in language.tab
62: my %dynhash; # hash of hashes for dynamic metadata
63: my %dynread; # hash of directories already read for dynamic metadata
64: my %fieldnames; # Metadata fieldnames
65: # ----- Values which are set by the handler subroutine and are accessible to
66: # ----- other methods.
67: my $extrafield; # default extra table cell
68: my $fnum; # file counter
69: my $dnum; # directory counter
70:
71: # ----- Used to include or exclude files with certain extensions.
72: my @Only = ();
73: my @Omit = ();
74:
75:
76:
77:
78: # ----------------------------- Handling routine called via Apache and mod_perl
79: sub handler {
80: my $r = shift;
81: my $c = $r->connection();
82: &Apache::loncommon::content_type($r,'text/html');
83: &Apache::loncommon::no_cache($r);
84: $r->send_http_header;
85: return OK if $r->header_only;
86: $fnum=0;
87: $dnum=0;
88:
89: # Deal with stupid global variables (is there a way around making
90: # these global to this package? It is just so wrong....)
91: undef (@Only);
92: undef (@Omit);
93: %fieldnames=&Apache::lonmeta::fieldnames();
94:
95: # ------------------------------------- read in machine configuration variables
96: my $iconpath= $r->dir_config('lonIconsURL') . "/";
97: my $domain = $r->dir_config('lonDefDomain');
98: my $role = $r->dir_config('lonRole');
99: my $loadlim = $r->dir_config('lonLoadLim');
100: my $servadm = $r->dir_config('lonAdmEMail');
101: my $sysadm = $r->dir_config('lonSysEMail');
102: my $lonhost = $r->dir_config('lonHostID');
103: my $tabdir = $r->dir_config('lonTabDir');
104:
105: my $fileclr='#ffffe6';
106: my $line;
107: my (@attrchk,@openpath);
108: my $uri=$r->uri;
109:
110: # -------------------------------------- see if called from an interactive mode
111: # Get the parameters from the query string
112: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
113: ['catalogmode','launch','acts','mode','form','element',
114: 'only','omit','titleelement']);
115: #-------------------------------------------------------------------
116: my $closebutton='';
117: my $groupimportbutton='';
118: my $colspan='';
119:
120: $extrafield='';
121: my $diropendb =
122: "/home/httpd/perl/tmp/$env{'user.domain'}_$env{'user.name'}_indexer.db";
123: %hash = ();
124: {
125: my %dbfile;
126: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_READER(),0640)) {
127: while(my($key,$value)=each(%dbfile)) {
128: $hash{$key}=$value;
129: }
130: untie(%dbfile);
131: }
132: }
133: {
134: if ($env{'form.launch'} eq '1') {
135: &start_fresh_session();
136: }
137: #Hijack lonindexer to verify a title and be close down.
138: if ($env{'form.launch'} eq '2') {
139: &Apache::loncommon::content_type($r,'text/html');
140: my $extra='';
141: if (defined($env{'form.titleelement'}) &&
142: $env{'form.titleelement'} ne '') {
143: my $verify_title = &Apache::lonnet::gettitle($env{'form.acts'});
144: # &Apache::lonnet::logthis("Hrrm $env{'form.acts'} -- $verify_title");
145: $verify_title=~s/'/\\'/g;
146: $extra='window.opener.document.forms["'.$env{'form.form'}.'"].elements["'.$env{'form.titleelement'}.'"].value=\''.$verify_title.'\';';
147: }
148: my $html=&Apache::lonxml::xmlbegin();
149: $r->print(<<ENDSUBM);
150: $html
151: <!-- Generated by lonindexer.pm -->
152: <head>
153: <script type="text/javascript">
154: function load() {
155: window.opener.document.forms["$env{'form.form'}"]
156: .elements["$env{'form.element'}"]
157: .value='$env{'form.acts'}';
158: $extra
159: window.close();
160: }
161: </script>
162: </head>
163: <body onLoad="load();">
164: </body>
165: </html>
166: ENDSUBM
167: return OK;
168: }
169:
170: # -------------------- refresh environment with user database values (in %hash)
171: &setvalues(\%hash,'form.catalogmode',\%env,'form.catalogmode' );
172:
173: # --------------------- define extra fields and buttons in case of special mode
174: if ($env{'form.catalogmode'} eq 'interactive') {
175: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
176: '<a name="$anchor"><img src="'.$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 'groupimport') {
185: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
186: '<a name="$anchor"><img src="'.$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 'groupimport') {
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=groupimport&";
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 'groupimport') {
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 $html=&Apache::lonxml::xmlbegin();
351: $r->print(<<ENDHEADER);
352: $html
353: <head>
354: <title>The LearningOnline Network With CAPA Directory Browser</title>
355:
356: <!-- Generated by lonindexer.pm -->
357:
358: <script type="text/javascript">
359: $catalogmodefunctions
360: function openWindow(url, wdwName, w, h, toolbar,scrollbar,locationbar) {
361: var xpos = (screen.width-w)/2;
362: xpos = (xpos < 0) ? '0' : xpos;
363: var ypos = (screen.height-h)/2-30;
364: ypos = (ypos < 0) ? '0' : ypos;
365: var options = "width=" + w + ",height=" + h + ",screenx="+xpos+",screeny="+ypos+",";
366: options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
367: options += "menubar=no,toolbar="+toolbar+",location="+locationbar+",directories=no";
368: var newWin = window.open(url, wdwName, options);
369: newWin.focus();
370: }
371: function gothere(val) {
372: window.location=val+'?acts='+document.forms.fileattr.acts.value;
373: }
374: </script>
375:
376: </head>
377: ENDHEADER
378: my ($headerdom)=($uri=~/^\/res\/(\w+)\//);
379: $r->print(&Apache::loncommon::bodytag('Browse Resources',undef,undef,undef,
380: $headerdom));
381: # - Evaluate actions from previous page (both cumulatively and chronologically)
382: if ($env{'form.catalogmode'} eq 'groupimport') {
383: my $acts=$env{'form.acts'};
384: my @Acts=split(/b/,$acts);
385: my %ahash;
386: my %achash;
387: my $ac=0;
388: # some initial hashes for working with data
389: foreach (@Acts) {
390: my ($state,$ref)=split(/a/);
391: $ahash{$ref}=$state;
392: $achash{$ref}=$ac;
393: $ac++;
394: }
395: # sorting through the actions and changing the global database hash
396: foreach (sort {$achash{$a}<=>$achash{$b}} (keys %ahash)) {
397: my $key=$_;
398: if ($ahash{$key} eq '1') {
399: $hash{'store_'.$hash{'pre_'.$key.'_link'}}=
400: $hash{'pre_'.$key.'_title'};
401: $hash{'storectr_'.$hash{'pre_'.$key.'_link'}}=
402: $hash{'storectr'}+0;
403: $hash{'storectr'}++;
404: }
405: if ($ahash{$key} eq '0') {
406: if ($hash{'store_'.$hash{'pre_'.$key.'_link'}}) {
407: delete $hash{'store_'.$hash{'pre_'.$key.'_link'}};
408: }
409: }
410: }
411: # deleting the previously cached listing
412: foreach (keys %hash) {
413: if ($_ =~ /^pre_/ && $_ =~/link$/) {
414: my $key = $_;
415: $key =~ s/^pre_//;
416: $key =~ s/_[^_]*$//;
417: delete $hash{'pre_'.$key.'_title'};
418: delete $hash{'pre_'.$key.'_link'};
419: }
420: }
421: }
422:
423: # ---------------------------------- get state of file attributes to be showing
424: if ($env{'form.attrs'}) {
425: for (my $i=0; $i<=11; $i++) {
426: delete $hash{'display_attrs_'.$i};
427: if ($env{'form.attr'.$i} == 1) {
428: $attrchk[$i] = 'checked';
429: $hash{'display_attrs_'.$i} = 1;
430: }
431: }
432: } else {
433: for (my $i=0; $i<=11; $i++) {
434: $attrchk[$i] = 'checked' if $hash{'display_attrs_'.$i} == 1;
435: }
436: }
437:
438: # ------------------------------- output state of file attributes to be showing
439: # All versions has to the last item
440: # since it does not take an extra col
441: my %lt=&Apache::lonlocal::texthash(
442: 'ti' => 'Title',
443: 'si' => 'Size',
444: 'la' => 'Last access',
445: 'lm' => 'Last modified',
446: 'st' => 'Statistics',
447: 'au' => 'Author',
448: 'kw' => 'Keywords',
449: 'ln' => 'Language',
450: 'sa' => 'Source Available',
451: 'sr' => 'Show resource',
452: 'li' => 'Linked/Related Resources',
453: 'av' => 'All versions',
454: 'ud' => 'Update Display'
455: );
456: $r->print(<<END);
457: <form method="post" name="fileattr" action="$uri"
458: enctype="application/x-www-form-urlencoded">
459: <label><input type="checkbox" name="attr9" value="1" $attrchk[9] onClick="this.form.submit();" /> $lt{'av'}</label>
460: <table border="0">
461: <tr>
462: <td><label><input type="checkbox" name="attr0" value="1" $attrchk[0] onClick="this.form.submit();" /> $lt{'ti'}</label></td>
463: <td><label><input type="checkbox" name="attr4" value="1" $attrchk[4] onClick="this.form.submit();" /> $lt{'au'}</label></td>
464: <td><label><input type="checkbox" name="attr5" value="1" $attrchk[5] onClick="this.form.submit();" /> $lt{'kw'}</label></td>
465: <td><label><input type="checkbox" name="attr6" value="1" $attrchk[6] onClick="this.form.submit();" /> $lt{'ln'}</label></td>
466: </tr>
467: <tr>
468: <td><label><input type="checkbox" name="attr1" value="1" $attrchk[1] onClick="this.form.submit();" /> $lt{'si'}</label></td>
469: <td><label><input type="checkbox" name="attr2" value="1" $attrchk[2] onClick="this.form.submit();" /> $lt{'la'}</label></td>
470: <td><label><input type="checkbox" name="attr3" value="1" $attrchk[3] onClick="this.form.submit();" /> $lt{'lm'}</label></td>
471: <td><label><input type="checkbox" name="attr10" value="1" $attrchk[10] onClick="this.form.submit();" /> $lt{'sa'}</label></td>
472: </tr>
473: <tr>
474: <td><label><input type="checkbox" name="attr8" value="1" $attrchk[8] onClick="this.form.submit();" /> $lt{'st'}</label></td>
475: <td><label><input type="checkbox" name="attr11" value="1" $attrchk[11] onClick="this.form.submit();" /> $lt{'li'}</label></td>
476: <td><label><input type="checkbox" name="attr7" value="1" $attrchk[7] onClick="this.form.submit();" /> $lt{'sr'}</label></td>
477: <td> </td>
478: </tr>
479: </table>
480: <input type="hidden" name="attrs" value="1" />
481: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
482: <input type="hidden" name="acts" value="" />
483: $closebutton $groupimportbutton
484: END
485: # -------------- Filter out sequence containment in crumbs and "recent folders"
486: my $storeuri=$uri;
487: $storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
488: $storeuri=~s/\/+/\//g;
489: # ---------------------------------------------------------------- Bread crumbs
490: $r->print(&Apache::lonhtmlcommon::crumbs($storeuri,'','',
491: (($env{'form.catalogmode'} eq 'groupimport')?
492: 'document.forms.fileattr':'')).
493: &Apache::lonhtmlcommon::select_recent('residx','resrecent',
494: '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();'));
495: # -------------------------------------------------------- Resource Home Button
496: my $reshome=$env{'course.'.$env{'request.course.id'}.'.reshome'};
497: if ($reshome) {
498: $r->print("<font size='+2'><a href='");
499: if ($env{'form.catalogmode'} eq 'groupimport') {
500: $r->print('javascript:document.forms.fileattr.action="'.$reshome.'";document.forms.fileattr.submit();');
501: } else {
502: $r->print($reshome);
503: }
504: $r->print("'>".&mt('Home').'</a></font>');
505: }
506: $r->print('</form>');
507: # ------------------------------------------------------ Remember where we were
508: &Apache::loncommon::storeresurl($storeuri);
509: &Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
510: # ----------------- output starting row to the indexed file/directory hierarchy
511: my $titleclr="#ddffff";
512: #$r->print(&initdebug());
513: #$r->print(&writedebug("Omit:@Omit")) if (@Omit);
514: #$r->print(&writedebug("Only:@Only")) if (@Only);
515: $r->print('<table width="100%" border="0"><tr><td bgcolor="#777777">'."\n");
516: $r->print('<table width="100%" border="0"><tr bgcolor="'.$titleclr.'">'."\n");
517: $r->print("<td $colspan><b>".&mt('Name')."</b></td>\n");
518: $r->print("<td><b>".&mt('Title')."</b></td>\n")
519: if ($hash{'display_attrs_0'} == 1);
520: $r->print("<td align=right><b>".&mt("Size")." (".&mt("bytes").") ".
521: "</b></td>\n") if ($hash{'display_attrs_1'} == 1);
522: $r->print("<td><b>".&mt("Last accessed")."</b></td>\n")
523: if ($hash{'display_attrs_2'} == 1);
524: $r->print("<td><b>".&mt("Last modified")."</b></td>\n")
525: if ($hash{'display_attrs_3'} == 1);
526: $r->print("<td><b>".&mt("Author(s)")."</b></td>\n")
527: if ($hash{'display_attrs_4'} == 1);
528: $r->print("<td><b>".&mt("Keywords")."</b></td>\n")
529: if ($hash{'display_attrs_5'} == 1);
530: $r->print("<td><b>".&mt("Language")."</b></td>\n")
531: if ($hash{'display_attrs_6'} == 1);
532: $r->print("<td><b>".&mt("Usage Statistics")." <br />(".
533: &mt("Courses/Network Hits").")</b> ".&mt('updated periodically')."</td>\n")
534: if ($hash{'display_attrs_8'} == 1);
535: $r->print("<td><b>".&mt("Source Available")."</b></td>\n")
536: if ($hash{'display_attrs_10'} == 1);
537: $r->print("<td><b>".&mt("Linked/Related Resources")."</b></td>\n")
538: if ($hash{'display_attrs_11'} == 1);
539: $r->print("<td><b>".&mt("Resource")."</b></td>\n")
540: if ($hash{'display_attrs_7'} == 1);
541: $r->print('</tr>');
542:
543: # ----------------- read in what directories have previously been set to "open"
544: foreach (keys %hash) {
545: if ($_ =~ /^diropen_status_/) {
546: my $key = $_;
547: $key =~ s/^diropen_status_//;
548: $dirs{$key} = $hash{$_};
549: }
550: }
551:
552: if ($env{'form.openuri'}) { # take care of review and refresh options
553: my $uri=$env{'form.openuri'};
554: if (exists($hash{'diropen_status_'.$uri})) {
555: my $cursta = $hash{'diropen_status_'.$uri};
556: $dirs{$uri} = 'open';
557: $hash{'diropen_status_'.$uri} = 'open';
558: if ($cursta eq 'open') {
559: $dirs{$uri} = 'closed';
560: $hash{'diropen_status_'.$uri} = 'closed';
561: }
562: } else {
563: $hash{'diropen_status_'.$uri} = 'open';
564: $dirs{$uri} = 'open';
565: }
566: }
567:
568: my $toplevel;
569: my $indent = 0;
570: $uri = $uri.'/' if $uri !~ /.*\/$/;
571:
572: if ($env{'form.dirPointer'} ne 'on') {
573: $hash{'top.level'} = $uri;
574: $toplevel = $uri;
575: } else {
576: $toplevel = $hash{'top.level'};
577: }
578:
579: # -------------------------------- if not at top level, provide an uplink arrow
580: if ($toplevel ne '/res/'){
581: my (@uri_com) = split(/\//,$uri);
582: pop @uri_com;
583: my $upone = join('/',@uri_com);
584: my @list = qw (0);
585: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
586: $indent = 1;
587: }
588:
589: # -------- recursively go through all the directories and output as appropriate
590: &scanDir ($r,$toplevel,$indent,\%hash);
591:
592: # ---------------------------- embed hidden information useful for group import
593: $r->print("<form name='fnum'>");
594: $r->print("<input type='hidden' name='fnum' value='$fnum' /></form>");
595:
596: # -------------------------------------------------------------- end the tables
597: $r->print('</table>');
598: $r->print('</td></tr></table>');
599:
600: # --------------------------------------------------- end the output and return
601: $r->print('</body></html>'."\n");
602: }
603: if(! $c->aborted()) {
604: # write back into the temporary file
605: my %dbfile;
606: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
607: while (my($key,$value) = each(%hash)) {
608: $dbfile{$key}=$value;
609: }
610: untie(%dbfile);
611: }
612: }
613:
614: return OK;
615: }
616:
617: # ----------------------------------------------- recursive scan of a directory
618: sub scanDir {
619: my ($r,$startdir,$indent,$hashref)=@_;
620: my $c = $r->connection();
621: my ($compuri,$curdir);
622: my $dirptr=16384;
623: my $obs;
624: $indent++;
625: my %dupdirs = %dirs;
626: my @list=&get_list($r,$startdir);
627: foreach my $line (@list) {
628: return if ($c->aborted());
629: #This is a kludge, sorry aboot this
630: my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
631: next if($strip =~ /.*\.meta$/ | $obs eq '1');
632: my (@fileparts) = split(/\./,$strip);
633: if ($hash{'display_attrs_9'} != 1) {
634: # if not all versions to be shown
635: if (scalar(@fileparts) >= 3) {
636: my $fext = pop @fileparts;
637: my $ov = pop @fileparts;
638: my $fname = join ('.',@fileparts,$fext);
639: next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
640: }
641: }
642:
643: if ($dom eq 'domain') {
644: # dom list has full path /res/<domain name>/ already
645: $curdir='';
646: $compuri = (split(/\&/,$line))[0];
647: } else {
648: # user, dir & file have name only, i.e., w/o path
649: $compuri = join('',$startdir,$strip,'/');
650: $curdir = $startdir;
651: }
652: my $diropen = 'closed';
653: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
654: while (my ($key,$val)= each %dupdirs) {
655: if ($key eq $compuri and $val eq "open") {
656: $diropen = "opened";
657: delete($dupdirs{$key});
658: delete($dirs{$key});
659: }
660: }
661: }
662: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
663: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
664: }
665: $indent--;
666: }
667:
668: # --------------- get complete matched list based on the uri (returns an array)
669: sub get_list {
670: my ($r,$uri)=@_;
671: my @list=();
672: (my $luri = $uri) =~ s/\//_/g;
673: if ($env{'form.updatedisplay'}) {
674: foreach (keys %hash) {
675: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
676: delete $hash{$_} if ($_ =~ /^dirlist_timestamp_files_/);
677: }
678: }
679:
680: if (defined($hash{'dirlist_files_'.$luri}) &&
681: $hash{'dirlist_timestamp_files_'.$luri}+600 > (time)) {
682: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
683: } elsif ($uri=~/\.(page|sequence)\/$/) {
684: # is a page or a sequence
685: $uri=~s/\/$//;
686: $uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
687: $uri=~s/\/+/\//g;
688: foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
689: my @ratpart=split(/\:/,$_);
690: push @list,$ratpart[1];
691: }
692: $hash{'dirlist_files_'.$luri} = join("\n",@list);
693: } else {
694: # is really a directory
695: @list = &Apache::lonnet::dirlist($uri);
696: $hash{'dirlist_files_'.$luri} = join("\n",@list);
697: $hash{'dirlist_timestamp_files_'.$luri} = time;
698: }
699: return @list=&match_ext($r,@list);
700: }
701:
702: sub dynmetaread {
703: my $uri=shift;
704: if (($hash{'display_attrs_8'}==1) || ($hash{'display_attrs_11'}==1)) {
705: # We don't want the filename
706: $uri=~s/\/[^\/]+$//;
707: # Did we already see this?
708: my $builddir=$uri;
709: while ($builddir) {
710: if ($dynread{$builddir}) {
711: return 0;
712: }
713: $builddir=~s/\/[^\/]+$//;
714: }
715: # Actually get the data
716: %dynhash=
717: (%dynhash,&Apache::lonmeta::get_dynamic_metadata_from_sql($uri));
718: # Remember that we got it
719: $dynread{$uri}=1;
720: }
721: }
722:
723: sub initdebug {
724: my $html=&Apache::lonxml::xmlbegin();
725: return <<ENDJS;
726: <script>
727: var debugging = true;
728: if (debugging) {
729: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
730: }
731:
732: function output(text) {
733: if (debugging) {
734: debuggingWindow.document.writeln(text);
735: }
736: }
737: output('$html<head><title>Debugging Window</title><!-- for lonindexer.pm --></head><body><pre>');
738: </script>
739: ENDJS
740: }
741:
742: sub writedebug {
743: my $text = shift;
744: return "<script>output('$text');</script>";
745: }
746:
747: # -------------------- filters out files based on extensions (returns an array)
748: sub match_ext {
749: my ($r,@packlist)=@_;
750: my @trimlist;
751: my $nextline;
752: my @fileext;
753: my $dirptr=16384;
754:
755: foreach my $line (@packlist) {
756: chomp $line;
757: $line =~ s/^\/home\/httpd\/html//;
758: my @unpackline = split (/\&/,$line);
759: next if ($unpackline[0] eq '.');
760: next if ($unpackline[0] eq '..');
761: my @filecom = split (/\./,$unpackline[0]);
762: my $fext = pop(@filecom);
763: my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
764: if ($fnptr == 0 and $unpackline[3] ne "") {
765: my $embstyle = &Apache::loncommon::fileembstyle($fext);
766: push @trimlist,$line if (defined($embstyle) &&
767: ($embstyle ne 'hdn' or $fext eq 'meta'));
768: } else {
769: push @trimlist,$line;
770: }
771: }
772: @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
773: return @trimlist;
774: }
775:
776: # ------------------------------- displays one line in appropriate table format
777: sub display_line {
778: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
779: my (@pathfn, $fndir);
780: # there could be relative paths (files actually belonging into this directory)
781: # or absolute paths (for example, from sequences)
782: my $absolute;
783: my $pathprefix;
784: if ($line=~m|^/res/| && $startdir ne '') {
785: $absolute=1;
786: $pathprefix='';
787: } else {
788: $absolute=0;
789: $pathprefix=$startdir;
790: }
791: my $dirptr=16384;
792: my $fileclr="#ffffe6";
793: my $iconpath= $r->dir_config('lonIconsURL') . '/';
794:
795: my @filecom = split (/\&/,$line);
796: my @pathcom = split (/\//,$filecom[0]);
797: my $listname = $pathcom[scalar(@pathcom)-1];
798: my $fnptr = $filecom[3]&$dirptr;
799: my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
800: $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
801:
802: my $tabtag='</td>';
803: my $i=0;
804: while ($i<=11) {
805: $tabtag=join('',$tabtag,"<td> </td>")
806: if $hash{'display_attrs_'.$i} == 1;
807: $i++;
808: }
809: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
810:
811: # display uplink arrow
812: if ($filecom[1] eq 'viewOneUp') {
813: my $updir=$startdir;
814: # -------------- Filter out sequence containment in crumbs and "recent folders"
815: $updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
816: $updir=~s/\/+/\//g;
817:
818: $r->print("<tr valign='$valign' bgcolor=$fileclr>$extrafield");
819: $r->print("<td>\n");
820: $r->print ('<form method="post" name="dirpathUP" action="'.$updir.
821: '/" '.
822: 'onSubmit="return rep_dirpath(\'UP\','.
823: 'document.forms.fileattr.acts.value)" '.
824: 'enctype="application/x-www-form-urlencoded"'.
825: '>'."\n");
826: $r->print ('<input type=hidden name=openuri value="'.
827: $startdir.'" />'."\n");
828: $r->print ('<input type="hidden" name="acts" value="" />'."\n");
829: $r->print ('<input src="'.$iconpath.'arrow_up.gif"');
830: $r->print (' name="'.$msg.'" height="22" type="image" border="0" />'.
831: "\n");
832: $r->print(&mt("Up")."</form>$tabtag</tr>\n");
833: return OK;
834: }
835: # Do we have permission to look at this?
836:
837: if($filecom[15] ne '1') { return OK if (!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])); }
838:
839: # make absolute links appear on different background
840: if ($absolute) { $fileclr='#ccdd99'; }
841:
842: # display domain
843: if ($filecom[1] eq 'domain') {
844: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n")
845: if ($env{'form.dirPointer'} eq "on");
846: $r->print("<tr valign='$valign' bgcolor=$fileclr>$extrafield");
847: $r->print("<td>");
848: &begin_form ($r,$filecom[0]);
849: my $anchor = $filecom[0];
850: $anchor =~ s/\///g;
851: $r->print ('<a name="'.$anchor.'">');
852: $r->print ('<input type="hidden" name="acts" value="" />');
853: $r->print ('<input src="'.$iconpath.'folder_pointer_'.
854: $diropen.'.gif"');
855: $r->print (' name="'.$msg.'" height="22" type="image" border="0" />'.
856: "\n");
857: my $quotable_filecom = &Apache::loncommon::escape_single($filecom[0]);
858: $r->print ('<a href="javascript:gothere(\''.$quotable_filecom.
859: '\')"><img src="'.$iconpath.'server.gif"');
860: $r->print (' border="0" /></a>'."\n");
861: $r->print (&mt("Domain")." - $listname ");
862: if ($Apache::lonnet::domaindescription{$listname}) {
863: $r->print("(".$Apache::lonnet::domaindescription{$listname}.
864: ")");
865: }
866: $r->print ("</form>$tabtag</tr>\n");
867: return OK;
868:
869: # display user directory
870: }
871: if ($filecom[1] eq 'user') {
872: $r->print("<tr valign=$valign bgcolor=$fileclr>$extrafield");
873: $r->print("<td nowrap>\n");
874: my $curdir = $startdir.$filecom[0].'/';
875: my $anchor = $curdir;
876: $anchor =~ s/\///g;
877: &begin_form ($r,$curdir);
878: $r->print ('<a name="'.$anchor.'"><img src="'.$iconpath.
879: 'whitespace1.gif" border="0" />'."\n");
880: $r->print ('<input type="hidden" name="acts" value="" />');
881: $r->print ('<input src="'.$iconpath.'folder_pointer_'.$diropen.
882: '.gif"');
883: $r->print (' name="'.$msg.'" height="22" type="image" border="0" />'.
884: "\n");
885: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
886: $r->print ('<a href="javascript:gothere(\''.$quotable_curdir
887: .'\')"><img src='.
888: $iconpath.'quill.gif border="0" name="'.$msg.
889: '" height="22" /></a>');
890: my $domain=(split(m|/|,$startdir))[2];
891: my $plainname=&Apache::loncommon::plainname($listname,$domain);
892: $r->print ($listname);
893: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
894: $r->print ('</form>'.$tabtag.'</tr>'."\n");
895: return OK;
896: }
897:
898: # display file
899: if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
900: my $filelink = $pathprefix.$filecom[0];
901: my @file_ext = split (/\./,$listname);
902: my $curfext = $file_ext[-1];
903: if (@Omit) {
904: foreach (@Omit) { return OK if ($curfext eq $_); }
905: }
906: if (@Only) {
907: my $skip = 1;
908: foreach (@Only) { $skip = 0 if ($curfext eq $_); }
909: return OK if ($skip > 0);
910: }
911: # Set the icon for the file
912: my $iconname = &Apache::loncommon::icon($listname);
913: $r->print("<tr valign='$valign' bgcolor=$fileclr><td nowrap='nowrap' valign='top'>");
914:
915: if ($env{'form.catalogmode'} eq 'interactive') {
916: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
917: $r->print("<a href=\"javascript:select_data(\'",
918: $quotable_filelink,"')\">");
919: $r->print("<img src='",$iconpath,"select.gif' border='0' /></a>".
920: "\n");
921: $r->print("</td><td nowrap>");
922: } elsif ($env{'form.catalogmode'} eq 'groupimport') {
923: $r->print("<form name='form$fnum'>\n");
924: $r->print("<input type='checkbox' name='filelink"."' ".
925: "value='$filelink' onClick='".
926: "javascript:queue(\"form$fnum\")' ");
927: if ($hash{'store_'.$filelink}) {
928: $r->print("checked");
929: }
930: $r->print(" />\n");
931: $r->print("</form></td><td nowrap>");
932: $hash{"pre_${fnum}_link"}=$filelink;
933: $fnum++;
934: }
935: # Form to open or close sequences
936: if ($filelink=~/\.(page|sequence)$/) {
937: my $curdir = $startdir.$filecom[0].'/';
938: my $anchor = $curdir;
939: $anchor =~ s/\///g;
940: &begin_form($r,$curdir);
941: $indent--;
942: }
943: # General indentation
944: if ($indent > 0 and $indent < 11) {
945: $r->print("<img src=",$iconpath,"whitespace",$indent,
946: ".gif border='0' />\n");
947: } elsif ($indent >0) {
948: my $ten = int($indent/10.);
949: my $rem = $indent%10.0;
950: my $count = 0;
951: while ($count < $ten) {
952: $r->print("<img src=",$iconpath,
953: "whitespace10.gif border='0' />\n");
954: $count++;
955: }
956: $r->print("<img src=",$iconpath,"whitespace",$rem,
957: ".gif border='0' />\n") if $rem > 0;
958: }
959: # Sequence open/close icon
960: if ($filelink=~/\.(page|sequence)$/) {
961: my $curdir = $startdir.$filecom[0].'/';
962: my $anchor = $curdir;
963: $anchor =~ s/\///g;
964: $r->print ('<input type="hidden" name="acts" value="" />');
965: $r->print ('<a name="'.$anchor.'"><input src="'.$iconpath.
966: 'folder_pointer_'.$diropen.'.gif"');
967: $r->print (' name="'.$msg.'" height="22" type="image" border="0" />'.
968: "\n");
969: }
970: # Filetype icons
971: $r->print("<img src='$iconname' border='0' />\n");
972: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
973:
974:
975: $r->print (" <a href=\"javascript:openWindow('".$quotable_filelink.
976: "', 'previewfile', '450', '500', 'no', 'yes','yes')\";".
977: " TARGET=_self>$listname</a> ");
978:
979: $r->print (" (<a href=\"javascript:openWindow('".$quotable_filelink.
980: ".meta', 'metadatafile', '500', '550', 'no', 'yes','no')\"; ".
981: "TARGET=_self>metadata</a>) ");
982: # Close form to open/close sequence
983: if ($filelink=~/\.(page|sequence)$/) {
984: $r->print('</form>');
985: }
986: $r->print("</td>\n");
987: if ($hash{'display_attrs_0'} == 1) {
988: my $title = &Apache::lonnet::gettitle($filelink,'title');
989: $r->print('<td> '.($title eq '' ? ' ' : $title).
990: ' </td>'."\n");
991: }
992: $r->print('<td align=right> ',
993: $filecom[8]," </td>\n")
994: if $hash{'display_attrs_1'} == 1;
995: $r->print('<td> '.
996: (localtime($filecom[9]))." </td>\n")
997: if $hash{'display_attrs_2'} == 1;
998: $r->print('<td> '.
999: (localtime($filecom[10]))." </td>\n")
1000: if $hash{'display_attrs_3'} == 1;
1001:
1002: if ($hash{'display_attrs_4'} == 1) {
1003: my $author = &Apache::lonnet::metadata($filelink,'author');
1004: $r->print('<td> '.($author eq '' ? ' ' : $author).
1005: " </td>\n");
1006: }
1007: if ($hash{'display_attrs_5'} == 1) {
1008: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1009: # $keywords = ' ' if (!$keywords);
1010: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1011: " </td>\n");
1012: }
1013: #'
1014:
1015: if ($hash{'display_attrs_6'} == 1) {
1016: my $lang = &Apache::lonnet::metadata($filelink,'language');
1017: $lang = &Apache::loncommon::languagedescription($lang);
1018: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1019: " </td>\n");
1020: }
1021: if ($hash{'display_attrs_8'} == 1) {
1022: # statistics
1023: &dynmetaread($filelink);
1024: $r->print("<td>");
1025: &dynmetaprint($r,$filelink,'count');
1026: &dynmetaprint($r,$filelink,'course');
1027: &dynmetaprint($r,$filelink,'stdno');
1028: &dynmetaprint($r,$filelink,'avetries');
1029: &dynmetaprint($r,$filelink,'difficulty');
1030: &dynmetaprint($r,$filelink,'disc');
1031: &dynmetaprint($r,$filelink,'clear');
1032: &dynmetaprint($r,$filelink,'technical');
1033: &dynmetaprint($r,$filelink,'correct');
1034: &dynmetaprint($r,$filelink,'helpful');
1035: &dynmetaprint($r,$filelink,'depth');
1036: $r->print(" </td>\n");
1037:
1038: }
1039: if ($hash{'display_attrs_10'} == 1) {
1040: my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
1041: if($source eq 'open') {
1042: my $sourcelink = &Apache::lonsource::make_link($filelink,$listname);
1043: my $quotable_sourcelink = &Apache::loncommon::escape_single($sourcelink);
1044: $r->print('<td>'."<a href=\"javascript:openWindow('"
1045: .$quotable_sourcelink.
1046: "', 'previewsource', '700', '700', 'no', 'yes','yes')\";".
1047: " TARGET=_self>Yes</a> "."</td>\n");
1048: } else { #A cuddled else. :P
1049: $r->print("<td> </td>\n");
1050: }
1051: }
1052: if ($hash{'display_attrs_11'} == 1) {
1053: # links
1054: &dynmetaread($filelink);
1055: $r->print('<td>');
1056: &dynmetaprint($r,$filelink,'goto_list');
1057: &dynmetaprint($r,$filelink,'comefrom_list');
1058: &dynmetaprint($r,$filelink,'sequsage_list');
1059: &dynmetaprint($r,$filelink,'dependencies');
1060: $r->print('</td>');
1061: }
1062: if ($hash{'display_attrs_7'} == 1) {
1063: # Show resource
1064: my $output='';
1065: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
1066: if ($embstyle eq 'ssi') {
1067: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
1068: '.tmp';
1069: if ((!$env{'form.updatedisplay'}) &&
1070: (-e $cache)) {
1071: open(FH,$cache);
1072: $output=join("\n",<FH>);
1073: close(FH);
1074: } else {
1075: $output=&Apache::lonnet::ssi_body($filelink);
1076: if ($output=~/LONCAPAACCESSCONTROLERRORSCREEN/) {
1077: $output='';
1078: } else {
1079: open(FH,">$cache");
1080: print FH $output;
1081: close(FH);
1082: }
1083: }
1084: $output='<font size="-2">'.$output.'</font>';
1085: } elsif ($embstyle eq 'img') {
1086: $output='<img src="'.$filelink.'" />';
1087: } elsif ($filelink=~/^\/res\/(\w+)\/(\w+)\//) {
1088: $output='<img src="http://'.
1089: $Apache::lonnet::hostname{&Apache::lonnet::homeserver($2,$1)}.
1090: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1091: }
1092: $r->print('<td> '.($output eq '' ? ' ':$output).
1093: " </td>\n");
1094: }
1095: $r->print("</tr>\n");
1096: }
1097:
1098: # -- display directory
1099: if ($fnptr == $dirptr) {
1100: my $curdir = $startdir.$filecom[0].'/';
1101: my $anchor = $curdir;
1102: $anchor =~ s/\///g;
1103: $r->print("<tr bgcolor=$fileclr>$extrafield<td valign=$valign>");
1104: &begin_form ($r,$curdir);
1105: my $indentm1 = $indent-1;
1106: if ($indentm1 < 11 and $indentm1 > 0) {
1107: $r->print("<img src=",$iconpath,"whitespace",$indentm1,
1108: ".gif border='0' />\n");
1109: } else {
1110: my $ten = int($indentm1/10.);
1111: my $rem = $indentm1%10.0;
1112: my $count = 0;
1113: while ($count < $ten) {
1114: $r->print ("<img src=",$iconpath
1115: ,"whitespace10.gif border='0' />\n");
1116: $count++;
1117: }
1118: $r->print ("<img src=",$iconpath,"whitespace",$rem,
1119: ".gif border='0' />\n") if $rem > 0;
1120: }
1121: $r->print ('<input type="hidden" name="acts" value="" />');
1122: $r->print ('<a name="'.$anchor.'"><input src="'.$iconpath.
1123: 'folder_pointer_'.$diropen.'.gif"');
1124: $r->print (' name="'.$msg.'" height="22" type="image" border="0" />'.
1125: "\n");
1126: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
1127: $r->print ('<a href="javascript:gothere(\''
1128: .$quotable_curdir.'\')"><img src="'.
1129: $iconpath.'folder_'.$diropen.'.gif" border="0" /></a>'.
1130: "\n");
1131: $r->print ("$listname</td>\n");
1132: # Attributes
1133: my $filelink = $startdir.$filecom[0].'/default';
1134:
1135: if ($hash{'display_attrs_0'} == 1) {
1136: my $title = &Apache::lonnet::gettitle($filelink,'title');
1137: $r->print('<td> '.($title eq '' ? ' ' : $title).
1138: ' </td>'."\n");
1139: }
1140: $r->print('<td align=right> ',
1141: $filecom[8]," </td>\n")
1142: if $hash{'display_attrs_1'} == 1;
1143: $r->print('<td> '.
1144: (localtime($filecom[9]))." </td>\n")
1145: if $hash{'display_attrs_2'} == 1;
1146: $r->print('<td> '.
1147: (localtime($filecom[10]))." </td>\n")
1148: if $hash{'display_attrs_3'} == 1;
1149:
1150: if ($hash{'display_attrs_4'} == 1) {
1151: my $author = &Apache::lonnet::metadata($filelink,'author');
1152: $r->print('<td> '.($author eq '' ? ' ' : $author).
1153: " </td>\n");
1154: }
1155: if ($hash{'display_attrs_5'} == 1) {
1156: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1157: # $keywords = ' ' if (!$keywords);
1158: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1159: " </td>\n");
1160: }
1161: if ($hash{'display_attrs_6'} == 1) {
1162: my $lang = &Apache::lonnet::metadata($filelink,'language');
1163: $lang = &Apache::loncommon::languagedescription($lang);
1164: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1165: " </td>\n");
1166: }
1167: if ($hash{'display_attrs_8'} == 1) {
1168: $r->print('<td> </td>');
1169: }
1170: if ($hash{'display_attrs_10'} == 1) {
1171: $r->print('<td> </td>');
1172: }
1173: if ($hash{'display_attrs_11'} == 1) {
1174: $r->print('<td> </td>');
1175: }
1176: if ($hash{'display_attrs_7'} == 1) {
1177: $r->print('<td> </td>');
1178: }
1179: $r->print('</form></tr>');
1180: }
1181:
1182: }
1183:
1184: sub dynmetaprint {
1185: my ($r,$filelink,$item)=@_;
1186: if ($dynhash{$filelink}->{$item}) {
1187: $r->print("\n<br />".$fieldnames{$item}.': '.
1188: &Apache::lonmeta::prettyprint($item,
1189: $dynhash{$filelink}->{$item},
1190: (($env{'form.catalogmode'} ne 'groupimport')?'preview':''),
1191: '',
1192: (($env{'form.catalogmode'} eq 'groupimport')?'document.forms.fileattr':''),1));
1193: }
1194: }
1195:
1196: # ------------------- prints the beginning of a form for directory or file link
1197: sub begin_form {
1198: my ($r,$uri) = @_;
1199: my $anchor = $uri;
1200: $anchor =~ s/\///g;
1201: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1202: '#'.$anchor.
1203: '" onSubmit="return rep_dirpath(\''.$dnum.'\''.
1204: ',document.forms.fileattr.acts.value)" '.
1205: 'enctype="application/x-www-form-urlencoded">'."\n");
1206: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'" />'.
1207: "\n");
1208: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n");
1209: $dnum++;
1210: }
1211:
1212: # --------- settings whenever the user causes the indexer window to be launched
1213: sub start_fresh_session {
1214: delete $hash{'form.catalogmode'};
1215: delete $hash{'form.mode'};
1216: delete $hash{'form.form'};
1217: delete $hash{'form.element'};
1218: delete $hash{'form.omit'};
1219: delete $hash{'form.only'};
1220: foreach (keys %hash) {
1221: delete $hash{$_} if (/^(pre_|store)/);
1222: }
1223: }
1224:
1225: # ------------------------------------------------------------------- setvalues
1226: sub setvalues {
1227: # setvalues is used in registerurl to synchronize the database
1228: # hash and environment hashes
1229: my ($H1,$h1key,$H2,$h2key) =@_;
1230: #
1231: if (exists $H2->{$h2key}) {
1232: $H1->{$h1key} = $H2->{$h2key};
1233: } elsif (exists $H1->{$h1key}) {
1234: $H2->{$h2key} = $H1->{$h1key};
1235: }
1236: }
1237:
1238: 1;
1239:
1240: sub cleanup {
1241: if (tied(%hash)){
1242: &Apache::lonnet::logthis('Cleanup indexer: hash');
1243: }
1244: }
1245:
1246:
1247:
1248:
1249:
1250: =head1 NAME
1251:
1252: Apache::lonindexer - mod_perl module for cross server filesystem browsing
1253:
1254: =head1 SYNOPSIS
1255:
1256: Invoked by /etc/httpd/conf/srm.conf:
1257:
1258: <LocationMatch "^/res.*/$">
1259: SetHandler perl-script
1260: PerlHandler Apache::lonindexer
1261: </LocationMatch>
1262:
1263: =head1 INTRODUCTION
1264:
1265: This module enables a scheme of browsing across a cross server.
1266:
1267: This is part of the LearningOnline Network with CAPA project
1268: described at http://www.lon-capa.org.
1269:
1270: =head1 BEGIN SUBROUTINE
1271:
1272: This routine is only run once after compilation.
1273:
1274: =over 4
1275:
1276: =item *
1277:
1278: Initializes %language hash table.
1279:
1280: =back
1281:
1282: =head1 HANDLER SUBROUTINE
1283:
1284: This routine is called by Apache and mod_perl.
1285:
1286: =over 4
1287:
1288: =item *
1289:
1290: read in machine configuration variables
1291:
1292: =item *
1293:
1294: see if called from an interactive mode
1295:
1296: =item *
1297:
1298: refresh environment with user database values (in %hash)
1299:
1300: =item *
1301:
1302: define extra fields and buttons in case of special mode
1303:
1304: =item *
1305:
1306: set catalogmodefunctions to have extra needed javascript functionality
1307:
1308: =item *
1309:
1310: print header
1311:
1312: =item *
1313:
1314: evaluate actions from previous page (both cumulatively and chronologically)
1315:
1316: =item *
1317:
1318: output title
1319:
1320: =item *
1321:
1322: get state of file attributes to be showing
1323:
1324: =item *
1325:
1326: output state of file attributes to be showing
1327:
1328: =item *
1329:
1330: output starting row to the indexed file/directory hierarchy
1331:
1332: =item *
1333:
1334: read in what directories have previously been set to "open"
1335:
1336: =item *
1337:
1338: if not at top level, provide an uplink arrow
1339:
1340: =item *
1341:
1342: recursively go through all the directories and output as appropriate
1343:
1344: =item *
1345:
1346: information useful for group import
1347:
1348: =item *
1349:
1350: end the tables
1351:
1352: =item *
1353:
1354: end the output and return
1355:
1356: =back
1357:
1358: =head1 OTHER SUBROUTINES
1359:
1360: =over 4
1361:
1362: =item *
1363:
1364: scanDir - recursive scan of a directory
1365:
1366: =item *
1367:
1368: get_list - get complete matched list based on the uri (returns an array)
1369:
1370: =item *
1371:
1372: match_ext - filters out files based on extensions (returns an array)
1373:
1374: =item *
1375:
1376: display_line - displays one line in appropriate table format
1377:
1378: =item *
1379:
1380: begin_form - prints the beginning of a form for directory or file link
1381:
1382: =item *
1383:
1384: start_fresh_session - settings whenever the user causes the indexer window
1385: to be launched
1386:
1387: =back
1388:
1389: =cut
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