1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.128 2004/10/21 11:18:41 foxr 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: $r->content_type('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: $r->print(<<ENDSUBM);
149: <html>
150: <!-- Generated by lonindexer.pm -->
151: <script type="text/javascript">
152: function load() {
153: window.opener.document.forms["$ENV{'form.form'}"]
154: .elements["$ENV{'form.element'}"]
155: .value='$ENV{'form.acts'}';
156: $extra
157: window.close();
158: }
159: </script>
160: <body onLoad=load();>
161: </body>
162: </html>
163: ENDSUBM
164: return OK;
165: }
166:
167: # -------------------- refresh environment with user database values (in %hash)
168: &setvalues(\%hash,'form.catalogmode',\%ENV,'form.catalogmode' );
169:
170: # --------------------- define extra fields and buttons in case of special mode
171: if ($ENV{'form.catalogmode'} eq 'interactive') {
172: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
173: '<a name="$anchor"><img src="'.$iconpath.'whitespace1.gif"'.
174: ' border="0" /></td>';
175: $colspan=" colspan='2' ";
176: my $cl=&mt('Close');
177: $closebutton=<<END;
178: <input type="button" name="close" value='$cl' onClick="self.close()">
179: END
180: }
181: elsif ($ENV{'form.catalogmode'} eq 'groupimport') {
182: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
183: '<a name="$anchor"><img src="'.$iconpath.'whitespace1.gif"'.
184: ' border="0" /></td>';
185: $colspan=" colspan='2' ";
186: my $cl=&mt('Close');
187: my $gi=&mt('Import');
188: $closebutton=<<END;
189: <input type="button" name="close" value='$cl' onClick="self.close()">
190: END
191: $groupimportbutton=<<END;
192: <input type="button" name="groupimport" value='$gi'
193: onClick="javascript:select_group()">
194: END
195: }
196: # Additions made by Matthew to make the browser a little easier to deal
197: # with in the future.
198: #
199: # $mode (at this time) indicates if we are in edit mode.
200: # $form is the name of the form that the URL is placed when the
201: # selection is made.
202: # $element is the name of the element in $formname which receives
203: # the URL.
204: #&Apache::lonxml::debug('Checking mode, form, element');
205: &setvalues(\%hash,'form.mode' ,\%ENV,'form.mode' );
206: &setvalues(\%hash,'form.form' ,\%ENV,'form.form' );
207: &setvalues(\%hash,'form.element' ,\%ENV,'form.element');
208: &setvalues(\%hash,'form.titleelement',\%ENV,'form.titleelement');
209: &setvalues(\%hash,'form.only' ,\%ENV,'form.only' );
210: &setvalues(\%hash,'form.omit' ,\%ENV,'form.omit' );
211:
212: # Deal with 'omit' and 'only'
213: if (exists $ENV{'form.omit'}) {
214: @Omit = split(',',$ENV{'form.omit'});
215: }
216: if (exists $ENV{'form.only'}) {
217: @Only = split(',',$ENV{'form.only'});
218: }
219:
220: my $mode = $ENV{'form.mode'};
221: my ($form,$element,$titleelement);
222: if ($mode eq 'edit' || $mode eq 'parmset') {
223: $form = $ENV{'form.form'};
224: $element = $ENV{'form.element'};
225: $titleelement = $ENV{'form.titleelement'};
226: }
227: #&Apache::lonxml::debug("mode=$mode form=$form element=$element titleelement=$titleelement");
228: # ------ set catalogmodefunctions to have extra needed javascript functionality
229: my $catalogmodefunctions='';
230: if ($ENV{'form.catalogmode'} eq 'interactive' or
231: $ENV{'form.catalogmode'} eq 'groupimport') {
232: # The if statement below sets us up to use the old version
233: # by default (ie. if $mode is undefined). This is the easy
234: # way out. Hopefully in the future I'll find a way to get
235: # the calls dealt with in a more comprehensive manner.
236:
237: #
238: # There is now also mode "simple", which is for the simple version of the rat
239: #
240: #
241: if (!defined($mode) || ($mode ne 'edit' && $mode ne 'parmset')) {
242: my $location = "/adm/groupsort?catalogmode=groupimport&";
243: $location .= "mode=".$mode."&";
244: $location .= "acts=";
245: $catalogmodefunctions=<<"END";
246: function select_data(url) {
247: changeURL(url);
248: self.close();
249: }
250: function select_group() {
251: window.location="$location"+document.forms.fileattr.acts.value;
252: }
253: function changeURL(val) {
254: if (opener.inf) {
255: if (opener.inf.document.forms.resinfo.elements.u) {
256: opener.inf.document.forms.resinfo.elements.u.value=val;
257: }
258: }
259: }
260: END
261: } elsif ($mode eq 'edit') { # we are in 'edit' mode
262: my $location = "/adm/groupsort?catalogmode=interactive&";
263: $location .= "form=$form&element=$element&mode=edit&acts=";
264: $catalogmodefunctions=<<END;
265: // mode = $mode
266: function select_data(url) {
267: var location = "/res/?launch=2&form=$form&element=$element&titleelement=$titleelement&acts=" + url;
268: window.location=location;
269: }
270: function select_group() {
271: window.location="$location"+document.forms.fileattr.acts.value;
272: }
273:
274: function changeURL(val) {
275: if (window.opener.document) {
276: window.opener.document.forms["$form"].elements["$element"].value=val;
277: } else {
278: alert("The file you selected is: "+val);
279: }
280: }
281: END
282: if (!$titleelement) {
283: $catalogmodefunctions.='function changeTitle(val) {}';
284: } else {
285: $catalogmodefunctions.=<<END;
286: function changeTitle(val) {
287: if (window.opener.document) {
288: window.opener.document.forms["$form"].elements["$titleelement"].value=val;
289: } else {
290: alert("The title of the file you selected is: "+val);
291: }
292: }
293: END
294: }
295: } elsif ($mode eq 'parmset') {
296: my $location = "/adm/groupsort?catalogmode=interactive&";
297: $location .= "form=$form&element=$element&mode=parmset&acts=";
298: $catalogmodefunctions=<<END;
299: // mode = $mode
300: function select_data(url) {
301: changeURL(url);
302: self.close();
303: }
304:
305: function select_group() {
306: window.location="$location"+document.forms.fileattr.acts.value;
307: }
308:
309: function changeURL(val) {
310: if (window.opener.document) {
311: var elementname = "$element"+"_value";
312: var checkboxname = "$element"+"_setparmval";
313: window.opener.document.forms["$form"].elements[elementname].value=val;
314: window.opener.document.forms["$form"].elements[checkboxname].checked=true;
315: } else {
316: alert("The file you selected is: "+val);
317: }
318: }
319:
320: END
321: }
322: }
323: $catalogmodefunctions.=<<END;
324: var acts='';
325: function rep_dirpath(suffix,val) {
326: eval("document.forms.dirpath"+suffix+".acts.value=val");
327: }
328: END
329: if ($ENV{'form.catalogmode'} eq 'groupimport') {
330: $catalogmodefunctions.=<<END;
331: function queue(val) {
332: if (eval("document.forms."+val+".filelink.checked")) {
333: var l=val.length;
334: var v=val.substring(4,l);
335: document.forms.fileattr.acts.value+='1a'+v+'b';
336: }
337: else {
338: var l=val.length;
339: var v=val.substring(4,l);
340: document.forms.fileattr.acts.value+='0a'+v+'b';
341: }
342: }
343: END
344: }
345:
346: # ---------------------------------------------------------------- Print Header
347: $r->print(<<ENDHEADER);
348: <html>
349: <head>
350: <title>The LearningOnline Network With CAPA Directory Browser</title>
351:
352: <!-- Generated by lonindexer.pm -->
353:
354: <script type="text/javascript">
355: $catalogmodefunctions
356: function openWindow(url, wdwName, w, h, toolbar,scrollbar,locationbar) {
357: var xpos = (screen.width-w)/2;
358: xpos = (xpos < 0) ? '0' : xpos;
359: var ypos = (screen.height-h)/2-30;
360: ypos = (ypos < 0) ? '0' : ypos;
361: var options = "width=" + w + ",height=" + h + ",screenx="+xpos+",screeny="+ypos+",";
362: options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
363: options += "menubar=no,toolbar="+toolbar+",location="+locationbar+",directories=no";
364: var newWin = window.open(url, wdwName, options);
365: newWin.focus();
366: }
367: function gothere(val) {
368: window.location=val+'?acts='+document.forms.fileattr.acts.value;
369: }
370: </script>
371:
372: </head>
373: ENDHEADER
374: my ($headerdom)=($uri=~/^\/res\/(\w+)\//);
375: $r->print(&Apache::loncommon::bodytag('Browse Resources',undef,undef,undef,
376: $headerdom));
377: # - Evaluate actions from previous page (both cumulatively and chronologically)
378: if ($ENV{'form.catalogmode'} eq 'groupimport') {
379: my $acts=$ENV{'form.acts'};
380: my @Acts=split(/b/,$acts);
381: my %ahash;
382: my %achash;
383: my $ac=0;
384: # some initial hashes for working with data
385: foreach (@Acts) {
386: my ($state,$ref)=split(/a/);
387: $ahash{$ref}=$state;
388: $achash{$ref}=$ac;
389: $ac++;
390: }
391: # sorting through the actions and changing the global database hash
392: foreach (sort {$achash{$a}<=>$achash{$b}} (keys %ahash)) {
393: my $key=$_;
394: if ($ahash{$key} eq '1') {
395: $hash{'store_'.$hash{'pre_'.$key.'_link'}}=
396: $hash{'pre_'.$key.'_title'};
397: $hash{'storectr_'.$hash{'pre_'.$key.'_link'}}=
398: $hash{'storectr'}+0;
399: $hash{'storectr'}++;
400: }
401: if ($ahash{$key} eq '0') {
402: if ($hash{'store_'.$hash{'pre_'.$key.'_link'}}) {
403: delete $hash{'store_'.$hash{'pre_'.$key.'_link'}};
404: }
405: }
406: }
407: # deleting the previously cached listing
408: foreach (keys %hash) {
409: if ($_ =~ /^pre_/ && $_ =~/link$/) {
410: my $key = $_;
411: $key =~ s/^pre_//;
412: $key =~ s/_[^_]*$//;
413: delete $hash{'pre_'.$key.'_title'};
414: delete $hash{'pre_'.$key.'_link'};
415: }
416: }
417: }
418:
419: # ---------------------------------- get state of file attributes to be showing
420: if ($ENV{'form.attrs'}) {
421: for (my $i=0; $i<=11; $i++) {
422: delete $hash{'display_attrs_'.$i};
423: if ($ENV{'form.attr'.$i} == 1) {
424: $attrchk[$i] = 'checked';
425: $hash{'display_attrs_'.$i} = 1;
426: }
427: }
428: } else {
429: for (my $i=0; $i<=11; $i++) {
430: $attrchk[$i] = 'checked' if $hash{'display_attrs_'.$i} == 1;
431: }
432: }
433:
434: # ------------------------------- output state of file attributes to be showing
435: # All versions has to the last item
436: # since it does not take an extra col
437: my %lt=&Apache::lonlocal::texthash(
438: 'ti' => 'Title',
439: 'si' => 'Size',
440: 'la' => 'Last access',
441: 'lm' => 'Last modified',
442: 'st' => 'Statistics',
443: 'au' => 'Author',
444: 'kw' => 'Keywords',
445: 'ln' => 'Language',
446: 'sa' => 'Source Available',
447: 'sr' => 'Show resource',
448: 'li' => 'Linked/Related Resources',
449: 'av' => 'All versions',
450: 'ud' => 'Update Display'
451: );
452: $r->print(<<END);
453: <form method="post" name="fileattr" action="$uri"
454: enctype="application/x-www-form-urlencoded">
455: <label><input type="checkbox" name="attr9" value="1" $attrchk[9] onClick="this.form.submit();" /> $lt{'av'}</label>
456: <table border="0">
457: <tr>
458: <td><label><input type="checkbox" name="attr0" value="1" $attrchk[0] onClick="this.form.submit();" /> $lt{'ti'}</label></td>
459: <td><label><input type="checkbox" name="attr4" value="1" $attrchk[4] onClick="this.form.submit();" /> $lt{'au'}</label></td>
460: <td><label><input type="checkbox" name="attr5" value="1" $attrchk[5] onClick="this.form.submit();" /> $lt{'kw'}</label></td>
461: <td><label><input type="checkbox" name="attr6" value="1" $attrchk[6] onClick="this.form.submit();" /> $lt{'ln'}</label></td>
462: </tr>
463: <tr>
464: <td><label><input type="checkbox" name="attr1" value="1" $attrchk[1] onClick="this.form.submit();" /> $lt{'si'}</label></td>
465: <td><label><input type="checkbox" name="attr2" value="1" $attrchk[2] onClick="this.form.submit();" /> $lt{'la'}</label></td>
466: <td><label><input type="checkbox" name="attr3" value="1" $attrchk[3] onClick="this.form.submit();" /> $lt{'lm'}</label></td>
467: <td><label><input type="checkbox" name="attr10" value="1" $attrchk[10] onClick="this.form.submit();" /> $lt{'sa'}</label></td>
468: </tr>
469: <tr>
470: <td><label><input type="checkbox" name="attr8" value="1" $attrchk[8] onClick="this.form.submit();" /> $lt{'st'}</label></td>
471: <td><label><input type="checkbox" name="attr11" value="1" $attrchk[11] onClick="this.form.submit();" /> $lt{'li'}</label></td>
472: <td><label><input type="checkbox" name="attr7" value="1" $attrchk[7] onClick="this.form.submit();" /> $lt{'sr'}</label></td>
473: <td> </td>
474: </tr>
475: </table>
476: <input type="hidden" name="attrs" value="1" />
477: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
478: <input type="hidden" name="acts" value="" />
479: $closebutton $groupimportbutton
480: END
481: # -------------- Filter out sequence containment in crumbs and "recent folders"
482: my $storeuri=$uri;
483: $storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
484: $storeuri=~s/\/+/\//g;
485: # ---------------------------------------------------------------- Bread crumbs
486: $r->print(&Apache::lonhtmlcommon::crumbs($storeuri,'','',
487: (($ENV{'form.catalogmode'} eq 'groupimport')?
488: 'document.forms.fileattr':'')).
489: &Apache::lonhtmlcommon::select_recent('residx','resrecent',
490: 'window.status=this.form.resrecent.options[this.form.resrecent.selectedIndex].value;this.form.action=this.form.resrecent.options[this.form.resrecent.selectedIndex].value;this.form.submit();'));
491: # -------------------------------------------------------- Resource Home Button
492: my $reshome=$ENV{'course.'.$ENV{'request.course.id'}.'.reshome'};
493: if ($reshome) {
494: $r->print("<font size='+2'><a href='");
495: if ($ENV{'form.catalogmode'} eq 'groupimport') {
496: $r->print('javascript:document.forms.fileattr.action="'.$reshome.'";document.forms.fileattr.submit();');
497: } else {
498: $r->print($reshome);
499: }
500: $r->print("'>".&mt('Home').'</a></font>');
501: }
502: $r->print('</form>');
503: # ------------------------------------------------------ Remember where we were
504: &Apache::loncommon::storeresurl($storeuri);
505: &Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
506: # ----------------- output starting row to the indexed file/directory hierarchy
507: my $titleclr="#ddffff";
508: # $r->print(&initdebug());
509: # $r->print(&writedebug("Omit:@Omit")) if (@Omit);
510: # $r->print(&writedebug("Only:@Only")) if (@Only);
511: $r->print("<table width='100\%' border=0><tr><td bgcolor=#777777>\n");
512: $r->print("<table width='100\%' border=0><tr bgcolor=$titleclr>\n");
513: $r->print("<td $colspan><b>".&mt('Name')."</b></td>\n");
514: $r->print("<td><b>".&mt('Title')."</b></td>\n")
515: if ($hash{'display_attrs_0'} == 1);
516: $r->print("<td align=right><b>".&mt("Size")." (".&mt("bytes").") ".
517: "</b></td>\n") if ($hash{'display_attrs_1'} == 1);
518: $r->print("<td><b>".&mt("Last accessed")."</b></td>\n")
519: if ($hash{'display_attrs_2'} == 1);
520: $r->print("<td><b>".&mt("Last modified")."</b></td>\n")
521: if ($hash{'display_attrs_3'} == 1);
522: $r->print("<td><b>".&mt("Author(s)")."</b></td>\n")
523: if ($hash{'display_attrs_4'} == 1);
524: $r->print("<td><b>".&mt("Keywords")."</b></td>\n")
525: if ($hash{'display_attrs_5'} == 1);
526: $r->print("<td><b>".&mt("Language")."</b></td>\n")
527: if ($hash{'display_attrs_6'} == 1);
528: $r->print("<td><b>".&mt("Usage Statistics")." <br />(".
529: &mt("Courses/Network Hits").")</b> ".&mt('updated periodically')."</td>\n")
530: if ($hash{'display_attrs_8'} == 1);
531: $r->print("<td><b>".&mt("Source Available")."</b></td>\n")
532: if ($hash{'display_attrs_10'} == 1);
533: $r->print("<td><b>".&mt("Linked/Related Resources")."</b></td>\n")
534: if ($hash{'display_attrs_11'} == 1);
535: $r->print("<td><b>".&mt("Resource")."</b></td>\n")
536: if ($hash{'display_attrs_7'} == 1);
537: $r->print('</tr>');
538:
539: # ----------------- read in what directories have previously been set to "open"
540: foreach (keys %hash) {
541: if ($_ =~ /^diropen_status_/) {
542: my $key = $_;
543: $key =~ s/^diropen_status_//;
544: $dirs{$key} = $hash{$_};
545: }
546: }
547:
548: if ($ENV{'form.openuri'}) { # take care of review and refresh options
549: my $uri=$ENV{'form.openuri'};
550: if (exists($hash{'diropen_status_'.$uri})) {
551: my $cursta = $hash{'diropen_status_'.$uri};
552: $dirs{$uri} = 'open';
553: $hash{'diropen_status_'.$uri} = 'open';
554: if ($cursta eq 'open') {
555: $dirs{$uri} = 'closed';
556: $hash{'diropen_status_'.$uri} = 'closed';
557: }
558: } else {
559: $hash{'diropen_status_'.$uri} = 'open';
560: $dirs{$uri} = 'open';
561: }
562: }
563:
564: my $toplevel;
565: my $indent = 0;
566: $uri = $uri.'/' if $uri !~ /.*\/$/;
567:
568: if ($ENV{'form.dirPointer'} ne 'on') {
569: $hash{'top.level'} = $uri;
570: $toplevel = $uri;
571: } else {
572: $toplevel = $hash{'top.level'};
573: }
574:
575: # -------------------------------- if not at top level, provide an uplink arrow
576: if ($toplevel ne '/res/'){
577: my (@uri_com) = split(/\//,$uri);
578: pop @uri_com;
579: my $upone = join('/',@uri_com);
580: my @list = qw (0);
581: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
582: $indent = 1;
583: }
584:
585: # -------- recursively go through all the directories and output as appropriate
586: &scanDir ($r,$toplevel,$indent,\%hash);
587:
588: # ---------------------------- embed hidden information useful for group import
589: $r->print("<form name='fnum'>");
590: $r->print("<input type='hidden' name='fnum' value='$fnum'></form>");
591:
592: # -------------------------------------------------------------- end the tables
593: $r->print('</table>');
594: $r->print('</td></tr></table>');
595:
596: # --------------------------------------------------- end the output and return
597: $r->print('</body></html>'."\n");
598: }
599: if(! $c->aborted()) {
600: # write back into the temporary file
601: my %dbfile;
602: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
603: while (my($key,$value) = each(%hash)) {
604: $dbfile{$key}=$value;
605: }
606: untie(%dbfile);
607: }
608: }
609:
610: return OK;
611: }
612:
613: # ----------------------------------------------- recursive scan of a directory
614: sub scanDir {
615: my ($r,$startdir,$indent,$hashref)=@_;
616: my $c = $r->connection();
617: my ($compuri,$curdir);
618: my $dirptr=16384;
619: my $obs;
620: $indent++;
621: my %dupdirs = %dirs;
622: my @list=&get_list($r,$startdir);
623: foreach my $line (@list) {
624: return if ($c->aborted());
625: #This is a kludge, sorry aboot this
626: my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
627: next if($strip =~ /.*\.meta$/ | $obs eq '1');
628: my (@fileparts) = split(/\./,$strip);
629: if ($hash{'display_attrs_9'} != 1) {
630: # if not all versions to be shown
631: if (scalar(@fileparts) >= 3) {
632: my $fext = pop @fileparts;
633: my $ov = pop @fileparts;
634: my $fname = join ('.',@fileparts,$fext);
635: next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
636: }
637: }
638:
639: if ($dom eq 'domain') {
640: # dom list has full path /res/<domain name>/ already
641: $curdir='';
642: $compuri = (split(/\&/,$line))[0];
643: } else {
644: # user, dir & file have name only, i.e., w/o path
645: $compuri = join('',$startdir,$strip,'/');
646: $curdir = $startdir;
647: }
648: my $diropen = 'closed';
649: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
650: while (my ($key,$val)= each %dupdirs) {
651: if ($key eq $compuri and $val eq "open") {
652: $diropen = "opened";
653: delete($dupdirs{$key});
654: delete($dirs{$key});
655: }
656: }
657: }
658: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
659: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
660: }
661: $indent--;
662: }
663:
664: # --------------- get complete matched list based on the uri (returns an array)
665: sub get_list {
666: my ($r,$uri)=@_;
667: my @list=();
668: (my $luri = $uri) =~ s/\//_/g;
669: if ($ENV{'form.updatedisplay'}) {
670: foreach (keys %hash) {
671: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
672: delete $hash{$_} if ($_ =~ /^dirlist_timestamp_files_/);
673: }
674: }
675:
676: if (defined($hash{'dirlist_files_'.$luri}) &&
677: $hash{'dirlist_timestamp_files_'.$luri}+600 > (time)) {
678: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
679: } elsif ($uri=~/\.(page|sequence)\/$/) {
680: # is a page or a sequence
681: $uri=~s/\/$//;
682: $uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
683: $uri=~s/\/+/\//g;
684: foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
685: my @ratpart=split(/\:/,$_);
686: push @list,$ratpart[1];
687: }
688: $hash{'dirlist_files_'.$luri} = join("\n",@list);
689: } else {
690: # is really a directory
691: @list = &Apache::lonnet::dirlist($uri);
692: $hash{'dirlist_files_'.$luri} = join("\n",@list);
693: $hash{'dirlist_timestamp_files_'.$luri} = time;
694: }
695: return @list=&match_ext($r,@list);
696: }
697:
698: sub dynmetaread {
699: my $uri=shift;
700: if (($hash{'display_attrs_8'}==1) || ($hash{'display_attrs_11'}==1)) {
701: # We don't want the filename
702: $uri=~s/\/[^\/]+$//;
703: # Did we already see this?
704: my $builddir=$uri;
705: while ($builddir) {
706: if ($dynread{$builddir}) {
707: return 0;
708: }
709: $builddir=~s/\/[^\/]+$//;
710: }
711: # Actually get the data
712: %dynhash=
713: (%dynhash,&Apache::lonmeta::get_dynamic_metadata_from_sql($uri));
714: # Remember that we got it
715: $dynread{$uri}=1;
716: }
717: }
718:
719: sub initdebug {
720: return <<ENDJS;
721: <script>
722: var debugging = true;
723: if (debugging) {
724: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
725: }
726:
727: function output(text) {
728: if (debugging) {
729: debuggingWindow.document.writeln(text);
730: }
731: }
732: output("<html><head><title>Debugging Window</title><!-- for lonindexer.pm --></head><body><pre>");
733: </script>
734: ENDJS
735: }
736:
737: sub writedebug {
738: my $text = shift;
739: return "<script>output('$text');</script>";
740: }
741:
742: # -------------------- filters out files based on extensions (returns an array)
743: sub match_ext {
744: my ($r,@packlist)=@_;
745: my @trimlist;
746: my $nextline;
747: my @fileext;
748: my $dirptr=16384;
749:
750: foreach my $line (@packlist) {
751: chomp $line;
752: $line =~ s/^\/home\/httpd\/html//;
753: my @unpackline = split (/\&/,$line);
754: next if ($unpackline[0] eq '.');
755: next if ($unpackline[0] eq '..');
756: my @filecom = split (/\./,$unpackline[0]);
757: my $fext = pop(@filecom);
758: my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
759: if ($fnptr == 0 and $unpackline[3] ne "") {
760: my $embstyle = &Apache::loncommon::fileembstyle($fext);
761: push @trimlist,$line if (defined($embstyle) &&
762: ($embstyle ne 'hdn' or $fext eq 'meta'));
763: } else {
764: push @trimlist,$line;
765: }
766: }
767: @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
768: return @trimlist;
769: }
770:
771: # ------------------------------- displays one line in appropriate table format
772: sub display_line {
773: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
774: my (@pathfn, $fndir);
775: # there could be relative paths (files actually belonging into this directory)
776: # or absolute paths (for example, from sequences)
777: my $absolute;
778: my $pathprefix;
779: if ($line=~m|^/res/| && $startdir ne '') {
780: $absolute=1;
781: $pathprefix='';
782: } else {
783: $absolute=0;
784: $pathprefix=$startdir;
785: }
786: my $dirptr=16384;
787: my $fileclr="#ffffe6";
788: my $iconpath= $r->dir_config('lonIconsURL') . '/';
789:
790: my @filecom = split (/\&/,$line);
791: my @pathcom = split (/\//,$filecom[0]);
792: my $listname = $pathcom[scalar(@pathcom)-1];
793: my $fnptr = $filecom[3]&$dirptr;
794: my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
795: $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
796:
797: my $tabtag='</td>';
798: my $i=0;
799: while ($i<=11) {
800: $tabtag=join('',$tabtag,"<td> </td>")
801: if $hash{'display_attrs_'.$i} == 1;
802: $i++;
803: }
804: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
805:
806: # display uplink arrow
807: if ($filecom[1] eq 'viewOneUp') {
808: my $updir=$startdir;
809: # -------------- Filter out sequence containment in crumbs and "recent folders"
810: $updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
811: $updir=~s/\/+/\//g;
812:
813: $r->print("<tr valign='$valign' bgcolor=$fileclr>$extrafield");
814: $r->print("<td>\n");
815: $r->print ('<form method="post" name="dirpathUP" action="'.$updir.
816: '/" '.
817: 'onSubmit="return rep_dirpath(\'UP\','.
818: 'document.forms.fileattr.acts.value)" '.
819: 'enctype="application/x-www-form-urlencoded"'.
820: '>'."\n");
821: $r->print ('<input type=hidden name=openuri value="'.
822: $startdir.'">'."\n");
823: $r->print ('<input type="hidden" name="acts" value="">'."\n");
824: $r->print ('<input src="'.$iconpath.'arrow_up.gif"');
825: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
826: "\n");
827: $r->print(&mt("Up")." $tabtag</tr></form>\n");
828: return OK;
829: }
830: # Do we have permission to look at this?
831:
832: if($filecom[15] ne '1') { return OK if (!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])); }
833:
834: # make absolute links appear on different background
835: if ($absolute) { $fileclr='#ccdd99'; }
836:
837: # display domain
838: if ($filecom[1] eq 'domain') {
839: $r->print ('<input type="hidden" name="dirPointer" value="on">'."\n")
840: if ($ENV{'form.dirPointer'} eq "on");
841: $r->print("<tr valign='$valign' bgcolor=$fileclr>$extrafield");
842: $r->print("<td>");
843: &begin_form ($r,$filecom[0]);
844: my $anchor = $filecom[0];
845: $anchor =~ s/\///g;
846: $r->print ('<a name="'.$anchor.'">');
847: $r->print ('<input type="hidden" name="acts" value="">');
848: $r->print ('<input src="'.$iconpath.'folder_pointer_'.
849: $diropen.'.gif"');
850: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
851: "\n");
852: my $quotable_filecom = &Apache::loncommon::escape_single($filecom[0]);
853: $r->print ('<a href="javascript:gothere(\''.$quotable_filecom.
854: '\')"><img src="'.$iconpath.'server.gif"');
855: $r->print (' border="0" /></a>'."\n");
856: $r->print (&mt("Domain")." - $listname ");
857: if ($Apache::lonnet::domaindescription{$listname}) {
858: $r->print("(".$Apache::lonnet::domaindescription{$listname}.
859: ")");
860: }
861: $r->print (" $tabtag</tr></form>\n");
862: return OK;
863:
864: # display user directory
865: }
866: if ($filecom[1] eq 'user') {
867: $r->print("<tr valign=$valign bgcolor=$fileclr>$extrafield");
868: $r->print("<td nowrap>\n");
869: my $curdir = $startdir.$filecom[0].'/';
870: my $anchor = $curdir;
871: $anchor =~ s/\///g;
872: &begin_form ($r,$curdir);
873: $r->print ('<a name="'.$anchor.'"><img src="'.$iconpath.
874: 'whitespace1.gif" border="0" />'."\n");
875: $r->print ('<input type="hidden" name="acts" value="">');
876: $r->print ('<input src="'.$iconpath.'folder_pointer_'.$diropen.
877: '.gif"');
878: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
879: "\n");
880: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
881: $r->print ('<a href="javascript:gothere(\''.$quotable_curdir
882: .'\')"><img src='.
883: $iconpath.'quill.gif border="0" name="'.$msg.
884: '" height="22" /></a>');
885: my $domain=(split(m|/|,$startdir))[2];
886: my $plainname=&Apache::loncommon::plainname($listname,$domain);
887: $r->print ($listname);
888: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
889: $r->print ($tabtag.'</tr></form>'."\n");
890: return OK;
891: }
892:
893: # display file
894: if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
895: my $filelink = $pathprefix.$filecom[0];
896: my @file_ext = split (/\./,$listname);
897: my $curfext = $file_ext[-1];
898: if (@Omit) {
899: foreach (@Omit) { return OK if ($curfext eq $_); }
900: }
901: if (@Only) {
902: my $skip = 1;
903: foreach (@Only) { $skip = 0 if ($curfext eq $_); }
904: return OK if ($skip > 0);
905: }
906: # Set the icon for the file
907: my $iconname = &Apache::loncommon::icon($listname);
908: $r->print("<tr valign='$valign' bgcolor=$fileclr><td nowrap='1' align='top'>");
909:
910: if ($ENV{'form.catalogmode'} eq 'interactive') {
911: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
912: $r->print("<a href=\"javascript:select_data(\'",
913: $quotable_filelink,"')\">");
914: $r->print("<img src='",$iconpath,"select.gif' border='0' /></a>".
915: "\n");
916: $r->print("</td><td nowrap>");
917: } elsif ($ENV{'form.catalogmode'} eq 'groupimport') {
918: $r->print("<form name='form$fnum'>\n");
919: $r->print("<input type='checkbox' name='filelink"."' ".
920: "value='$filelink' onClick='".
921: "javascript:queue(\"form$fnum\")' ");
922: if ($hash{'store_'.$filelink}) {
923: $r->print("checked");
924: }
925: $r->print(">\n");
926: $r->print("</form>\n");
927: $r->print("</td><td nowrap>");
928: $hash{"pre_${fnum}_link"}=$filelink;
929: $fnum++;
930: }
931: # Form to open or close sequences
932: if ($filelink=~/\.(page|sequence)$/) {
933: my $curdir = $startdir.$filecom[0].'/';
934: my $anchor = $curdir;
935: $anchor =~ s/\///g;
936: &begin_form($r,$curdir);
937: $indent--;
938: }
939: # General indentation
940: if ($indent > 0 and $indent < 11) {
941: $r->print("<img src=",$iconpath,"whitespace",$indent,
942: ".gif border='0' />\n");
943: } elsif ($indent >0) {
944: my $ten = int($indent/10.);
945: my $rem = $indent%10.0;
946: my $count = 0;
947: while ($count < $ten) {
948: $r->print("<img src=",$iconpath,
949: "whitespace10.gif border='0' />\n");
950: $count++;
951: }
952: $r->print("<img src=",$iconpath,"whitespace",$rem,
953: ".gif border='0' />\n") if $rem > 0;
954: }
955: # Sequence open/close icon
956: if ($filelink=~/\.(page|sequence)$/) {
957: my $curdir = $startdir.$filecom[0].'/';
958: my $anchor = $curdir;
959: $anchor =~ s/\///g;
960: $r->print ('<input type="hidden" name="acts" value="">');
961: $r->print ('<a name="'.$anchor.'"><input src="'.$iconpath.
962: 'folder_pointer_'.$diropen.'.gif"');
963: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
964: "\n");
965: }
966: # Filetype icons
967: $r->print("<img src='$iconname' border='0' />\n");
968: # Close form to open/close sequence
969: if ($filelink=~/\.(page|sequence)$/) {
970: $r->print('</form>');
971: }
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: $r->print("</td>\n");
983: if ($hash{'display_attrs_0'} == 1) {
984: my $title = &Apache::lonnet::gettitle($filelink,'title');
985: $r->print('<td> '.($title eq '' ? ' ' : $title).
986: ' </td>'."\n");
987: }
988: $r->print('<td align=right> ',
989: $filecom[8]," </td>\n")
990: if $hash{'display_attrs_1'} == 1;
991: $r->print('<td> '.
992: (localtime($filecom[9]))." </td>\n")
993: if $hash{'display_attrs_2'} == 1;
994: $r->print('<td> '.
995: (localtime($filecom[10]))." </td>\n")
996: if $hash{'display_attrs_3'} == 1;
997:
998: if ($hash{'display_attrs_4'} == 1) {
999: my $author = &Apache::lonnet::metadata($filelink,'author');
1000: $r->print('<td> '.($author eq '' ? ' ' : $author).
1001: " </td>\n");
1002: }
1003: if ($hash{'display_attrs_5'} == 1) {
1004: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1005: # $keywords = ' ' if (!$keywords);
1006: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1007: " </td>\n");
1008: }
1009: #'
1010:
1011: if ($hash{'display_attrs_6'} == 1) {
1012: my $lang = &Apache::lonnet::metadata($filelink,'language');
1013: $lang = &Apache::loncommon::languagedescription($lang);
1014: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1015: " </td>\n");
1016: }
1017: if ($hash{'display_attrs_8'} == 1) {
1018: # statistics
1019: &dynmetaread($filelink);
1020: $r->print("<td>");
1021: &dynmetaprint($r,$filelink,'count');
1022: &dynmetaprint($r,$filelink,'course');
1023: &dynmetaprint($r,$filelink,'stdno');
1024: &dynmetaprint($r,$filelink,'avetries');
1025: &dynmetaprint($r,$filelink,'difficulty');
1026: &dynmetaprint($r,$filelink,'disc');
1027: &dynmetaprint($r,$filelink,'clear');
1028: &dynmetaprint($r,$filelink,'technical');
1029: &dynmetaprint($r,$filelink,'correct');
1030: &dynmetaprint($r,$filelink,'helpful');
1031: &dynmetaprint($r,$filelink,'depth');
1032: $r->print(" </td>\n");
1033:
1034: }
1035: if ($hash{'display_attrs_10'} == 1) {
1036: my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
1037: if($source eq 'open') {
1038: my $sourcelink = &Apache::lonsource::make_link($filelink,$listname);
1039: my $quotable_sourcelink = &Apache::loncommon::escape_single($sourcelink);
1040: $r->print('<td>'."<a href=\"javascript:openWindow('"
1041: .$quotable_sourcelink.
1042: "', 'previewsource', '700', '700', 'no', 'yes','yes')\";".
1043: " TARGET=_self>Yes</a> "."</td>\n");
1044: } else { #A cuddled else. :P
1045: $r->print("<td> </td>\n");
1046: }
1047: }
1048: if ($hash{'display_attrs_11'} == 1) {
1049: # links
1050: &dynmetaread($filelink);
1051: $r->print('<td>');
1052: &dynmetaprint($r,$filelink,'goto_list');
1053: &dynmetaprint($r,$filelink,'comefrom_list');
1054: &dynmetaprint($r,$filelink,'sequsage_list');
1055: &dynmetaprint($r,$filelink,'dependencies');
1056: $r->print('</td>');
1057: }
1058: if ($hash{'display_attrs_7'} == 1) {
1059: # Show resource
1060: my $output='';
1061: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
1062: if ($embstyle eq 'ssi') {
1063: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
1064: '.tmp';
1065: if ((!$ENV{'form.updatedisplay'}) &&
1066: (-e $cache)) {
1067: open(FH,$cache);
1068: $output=join("\n",<FH>);
1069: close(FH);
1070: } else {
1071: $output=&Apache::lonnet::ssi_body($filelink);
1072: open(FH,">$cache");
1073: print FH $output;
1074: close(FH);
1075: }
1076: $output='<font size="-2">'.$output.'</font>';
1077: } elsif ($embstyle eq 'img') {
1078: $output='<img src="'.$filelink.'" />';
1079: } elsif ($filelink=~/^\/res\/(\w+)\/(\w+)\//) {
1080: $output='<img src="http://'.
1081: $Apache::lonnet::hostname{&Apache::lonnet::homeserver($2,$1)}.
1082: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1083: }
1084: $r->print('<td> '.($output eq '' ? ' ':$output).
1085: " </td>\n");
1086: }
1087: $r->print("</tr>\n");
1088: }
1089:
1090: # -- display directory
1091: if ($fnptr == $dirptr) {
1092: my $curdir = $startdir.$filecom[0].'/';
1093: my $anchor = $curdir;
1094: $anchor =~ s/\///g;
1095: $r->print("<tr bgcolor=$fileclr>$extrafield<td valign=$valign>");
1096: &begin_form ($r,$curdir);
1097: my $indentm1 = $indent-1;
1098: if ($indentm1 < 11 and $indentm1 > 0) {
1099: $r->print("<img src=",$iconpath,"whitespace",$indentm1,
1100: ".gif border='0' />\n");
1101: } else {
1102: my $ten = int($indentm1/10.);
1103: my $rem = $indentm1%10.0;
1104: my $count = 0;
1105: while ($count < $ten) {
1106: $r->print ("<img src=",$iconpath
1107: ,"whitespace10.gif border='0' />\n");
1108: $count++;
1109: }
1110: $r->print ("<img src=",$iconpath,"whitespace",$rem,
1111: ".gif border='0' />\n") if $rem > 0;
1112: }
1113: $r->print ('<input type="hidden" name="acts" value="">');
1114: $r->print ('<a name="'.$anchor.'"><input src="'.$iconpath.
1115: 'folder_pointer_'.$diropen.'.gif"');
1116: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
1117: "\n");
1118: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
1119: $r->print ('<a href="javascript:gothere(\''
1120: .$quotable_curdir.'\')"><img src="'.
1121: $iconpath.'folder_'.$diropen.'.gif" border="0" /></a>'.
1122: "\n");
1123: $r->print ("$listname</td>\n");
1124: # Attributes
1125: my $filelink = $startdir.$filecom[0].'/default';
1126:
1127: if ($hash{'display_attrs_0'} == 1) {
1128: my $title = &Apache::lonnet::gettitle($filelink,'title');
1129: $r->print('<td> '.($title eq '' ? ' ' : $title).
1130: ' </td>'."\n");
1131: }
1132: $r->print('<td align=right> ',
1133: $filecom[8]," </td>\n")
1134: if $hash{'display_attrs_1'} == 1;
1135: $r->print('<td> '.
1136: (localtime($filecom[9]))." </td>\n")
1137: if $hash{'display_attrs_2'} == 1;
1138: $r->print('<td> '.
1139: (localtime($filecom[10]))." </td>\n")
1140: if $hash{'display_attrs_3'} == 1;
1141:
1142: if ($hash{'display_attrs_4'} == 1) {
1143: my $author = &Apache::lonnet::metadata($filelink,'author');
1144: $r->print('<td> '.($author eq '' ? ' ' : $author).
1145: " </td>\n");
1146: }
1147: if ($hash{'display_attrs_5'} == 1) {
1148: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1149: # $keywords = ' ' if (!$keywords);
1150: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1151: " </td>\n");
1152: }
1153: if ($hash{'display_attrs_6'} == 1) {
1154: my $lang = &Apache::lonnet::metadata($filelink,'language');
1155: $lang = &Apache::loncommon::languagedescription($lang);
1156: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1157: " </td>\n");
1158: }
1159: if ($hash{'display_attrs_8'} == 1) {
1160: $r->print('<td> </td>');
1161: }
1162: if ($hash{'display_attrs_10'} == 1) {
1163: $r->print('<td> </td>');
1164: }
1165: if ($hash{'display_attrs_11'} == 1) {
1166: $r->print('<td> </td>');
1167: }
1168: if ($hash{'display_attrs_7'} == 1) {
1169: $r->print('<td> </td>');
1170: }
1171: $r->print('</form></tr>');
1172: }
1173:
1174: }
1175:
1176: sub dynmetaprint {
1177: my ($r,$filelink,$item)=@_;
1178: if ($dynhash{$filelink}->{$item}) {
1179: $r->print("\n<br />".$fieldnames{$item}.': '.
1180: &Apache::lonmeta::prettyprint($item,
1181: $dynhash{$filelink}->{$item},
1182: (($ENV{'form.catalogmode'} ne 'groupimport')?'preview':''),
1183: '',
1184: (($ENV{'form.catalogmode'} eq 'groupimport')?'document.forms.fileattr':''),1));
1185: }
1186: }
1187:
1188: # ------------------- prints the beginning of a form for directory or file link
1189: sub begin_form {
1190: my ($r,$uri) = @_;
1191: my $anchor = $uri;
1192: $anchor =~ s/\///g;
1193: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1194: '#'.$anchor.
1195: '" onSubmit="return rep_dirpath(\''.$dnum.'\''.
1196: ',document.forms.fileattr.acts.value)" '.
1197: 'enctype="application/x-www-form-urlencoded">'."\n");
1198: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'">'.
1199: "\n");
1200: $r->print ('<input type="hidden" name="dirPointer" value="on">'."\n");
1201: $dnum++;
1202: }
1203:
1204: # --------- settings whenever the user causes the indexer window to be launched
1205: sub start_fresh_session {
1206: delete $hash{'form.catalogmode'};
1207: delete $hash{'form.mode'};
1208: delete $hash{'form.form'};
1209: delete $hash{'form.element'};
1210: delete $hash{'form.omit'};
1211: delete $hash{'form.only'};
1212: foreach (keys %hash) {
1213: delete $hash{$_} if (/^(pre_|store)/);
1214: }
1215: }
1216:
1217: # ------------------------------------------------------------------- setvalues
1218: sub setvalues {
1219: # setvalues is used in registerurl to synchronize the database
1220: # hash and environment hashes
1221: my ($H1,$h1key,$H2,$h2key) =@_;
1222: #
1223: if (exists $H2->{$h2key}) {
1224: $H1->{$h1key} = $H2->{$h2key};
1225: } elsif (exists $H1->{$h1key}) {
1226: $H2->{$h2key} = $H1->{$h1key};
1227: }
1228: }
1229:
1230: 1;
1231:
1232: sub cleanup {
1233: if (tied(%hash)){
1234: &Apache::lonnet::logthis('Cleanup indexer: hash');
1235: }
1236: }
1237:
1238:
1239:
1240:
1241:
1242: =head1 NAME
1243:
1244: Apache::lonindexer - mod_perl module for cross server filesystem browsing
1245:
1246: =head1 SYNOPSIS
1247:
1248: Invoked by /etc/httpd/conf/srm.conf:
1249:
1250: <LocationMatch "^/res.*/$">
1251: SetHandler perl-script
1252: PerlHandler Apache::lonindexer
1253: </LocationMatch>
1254:
1255: =head1 INTRODUCTION
1256:
1257: This module enables a scheme of browsing across a cross server.
1258:
1259: This is part of the LearningOnline Network with CAPA project
1260: described at http://www.lon-capa.org.
1261:
1262: =head1 BEGIN SUBROUTINE
1263:
1264: This routine is only run once after compilation.
1265:
1266: =over 4
1267:
1268: =item *
1269:
1270: Initializes %language hash table.
1271:
1272: =back
1273:
1274: =head1 HANDLER SUBROUTINE
1275:
1276: This routine is called by Apache and mod_perl.
1277:
1278: =over 4
1279:
1280: =item *
1281:
1282: read in machine configuration variables
1283:
1284: =item *
1285:
1286: see if called from an interactive mode
1287:
1288: =item *
1289:
1290: refresh environment with user database values (in %hash)
1291:
1292: =item *
1293:
1294: define extra fields and buttons in case of special mode
1295:
1296: =item *
1297:
1298: set catalogmodefunctions to have extra needed javascript functionality
1299:
1300: =item *
1301:
1302: print header
1303:
1304: =item *
1305:
1306: evaluate actions from previous page (both cumulatively and chronologically)
1307:
1308: =item *
1309:
1310: output title
1311:
1312: =item *
1313:
1314: get state of file attributes to be showing
1315:
1316: =item *
1317:
1318: output state of file attributes to be showing
1319:
1320: =item *
1321:
1322: output starting row to the indexed file/directory hierarchy
1323:
1324: =item *
1325:
1326: read in what directories have previously been set to "open"
1327:
1328: =item *
1329:
1330: if not at top level, provide an uplink arrow
1331:
1332: =item *
1333:
1334: recursively go through all the directories and output as appropriate
1335:
1336: =item *
1337:
1338: information useful for group import
1339:
1340: =item *
1341:
1342: end the tables
1343:
1344: =item *
1345:
1346: end the output and return
1347:
1348: =back
1349:
1350: =head1 OTHER SUBROUTINES
1351:
1352: =over 4
1353:
1354: =item *
1355:
1356: scanDir - recursive scan of a directory
1357:
1358: =item *
1359:
1360: get_list - get complete matched list based on the uri (returns an array)
1361:
1362: =item *
1363:
1364: match_ext - filters out files based on extensions (returns an array)
1365:
1366: =item *
1367:
1368: display_line - displays one line in appropriate table format
1369:
1370: =item *
1371:
1372: begin_form - prints the beginning of a form for directory or file link
1373:
1374: =item *
1375:
1376: start_fresh_session - settings whenever the user causes the indexer window
1377: to be launched
1378:
1379: =back
1380:
1381: =cut
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