1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.127 2004/10/21 09:53:44 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: $r->print(<<ENDSUBM);
149: <html>
150: <script type="text/javascript">
151: function load() {
152: window.opener.document.forms["$ENV{'form.form'}"]
153: .elements["$ENV{'form.element'}"]
154: .value='$ENV{'form.acts'}';
155: $extra
156: window.close();
157: }
158: </script>
159: <body onLoad=load();>
160: </body>
161: </html>
162: ENDSUBM
163: return OK;
164: }
165:
166: # -------------------- refresh environment with user database values (in %hash)
167: &setvalues(\%hash,'form.catalogmode',\%ENV,'form.catalogmode' );
168:
169: # --------------------- define extra fields and buttons in case of special mode
170: if ($ENV{'form.catalogmode'} eq 'interactive') {
171: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
172: '<a name="$anchor"><img src="'.$iconpath.'whitespace1.gif"'.
173: ' border="0" /></td>';
174: $colspan=" colspan='2' ";
175: my $cl=&mt('Close');
176: $closebutton=<<END;
177: <input type="button" name="close" value='$cl' onClick="self.close()">
178: END
179: }
180: elsif ($ENV{'form.catalogmode'} eq 'groupimport') {
181: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
182: '<a name="$anchor"><img src="'.$iconpath.'whitespace1.gif"'.
183: ' border="0" /></td>';
184: $colspan=" colspan='2' ";
185: my $cl=&mt('Close');
186: my $gi=&mt('Import');
187: $closebutton=<<END;
188: <input type="button" name="close" value='$cl' onClick="self.close()">
189: END
190: $groupimportbutton=<<END;
191: <input type="button" name="groupimport" value='$gi'
192: onClick="javascript:select_group()">
193: END
194: }
195: # Additions made by Matthew to make the browser a little easier to deal
196: # with in the future.
197: #
198: # $mode (at this time) indicates if we are in edit mode.
199: # $form is the name of the form that the URL is placed when the
200: # selection is made.
201: # $element is the name of the element in $formname which receives
202: # the URL.
203: #&Apache::lonxml::debug('Checking mode, form, element');
204: &setvalues(\%hash,'form.mode' ,\%ENV,'form.mode' );
205: &setvalues(\%hash,'form.form' ,\%ENV,'form.form' );
206: &setvalues(\%hash,'form.element' ,\%ENV,'form.element');
207: &setvalues(\%hash,'form.titleelement',\%ENV,'form.titleelement');
208: &setvalues(\%hash,'form.only' ,\%ENV,'form.only' );
209: &setvalues(\%hash,'form.omit' ,\%ENV,'form.omit' );
210:
211: # Deal with 'omit' and 'only'
212: if (exists $ENV{'form.omit'}) {
213: @Omit = split(',',$ENV{'form.omit'});
214: }
215: if (exists $ENV{'form.only'}) {
216: @Only = split(',',$ENV{'form.only'});
217: }
218:
219: my $mode = $ENV{'form.mode'};
220: my ($form,$element,$titleelement);
221: if ($mode eq 'edit' || $mode eq 'parmset') {
222: $form = $ENV{'form.form'};
223: $element = $ENV{'form.element'};
224: $titleelement = $ENV{'form.titleelement'};
225: }
226: #&Apache::lonxml::debug("mode=$mode form=$form element=$element titleelement=$titleelement");
227: # ------ set catalogmodefunctions to have extra needed javascript functionality
228: my $catalogmodefunctions='';
229: if ($ENV{'form.catalogmode'} eq 'interactive' or
230: $ENV{'form.catalogmode'} eq 'groupimport') {
231: # The if statement below sets us up to use the old version
232: # by default (ie. if $mode is undefined). This is the easy
233: # way out. Hopefully in the future I'll find a way to get
234: # the calls dealt with in a more comprehensive manner.
235:
236: #
237: # There is now also mode "simple", which is for the simple version of the rat
238: #
239: #
240: if (!defined($mode) || ($mode ne 'edit' && $mode ne 'parmset')) {
241: my $location = "/adm/groupsort?catalogmode=groupimport&";
242: $location .= "mode=".$mode."&";
243: $location .= "acts=";
244: $catalogmodefunctions=<<"END";
245: function select_data(url) {
246: changeURL(url);
247: self.close();
248: }
249: function select_group() {
250: window.location="$location"+document.forms.fileattr.acts.value;
251: }
252: function changeURL(val) {
253: if (opener.inf) {
254: if (opener.inf.document.forms.resinfo.elements.u) {
255: opener.inf.document.forms.resinfo.elements.u.value=val;
256: }
257: }
258: }
259: END
260: } elsif ($mode eq 'edit') { # we are in 'edit' mode
261: my $location = "/adm/groupsort?catalogmode=interactive&";
262: $location .= "form=$form&element=$element&mode=edit&acts=";
263: $catalogmodefunctions=<<END;
264: // mode = $mode
265: function select_data(url) {
266: var location = "/res/?launch=2&form=$form&element=$element&titleelement=$titleelement&acts=" + url;
267: window.location=location;
268: }
269: function select_group() {
270: window.location="$location"+document.forms.fileattr.acts.value;
271: }
272:
273: function changeURL(val) {
274: if (window.opener.document) {
275: window.opener.document.forms["$form"].elements["$element"].value=val;
276: } else {
277: alert("The file you selected is: "+val);
278: }
279: }
280: END
281: if (!$titleelement) {
282: $catalogmodefunctions.='function changeTitle(val) {}';
283: } else {
284: $catalogmodefunctions.=<<END;
285: function changeTitle(val) {
286: if (window.opener.document) {
287: window.opener.document.forms["$form"].elements["$titleelement"].value=val;
288: } else {
289: alert("The title of the file you selected is: "+val);
290: }
291: }
292: END
293: }
294: } elsif ($mode eq 'parmset') {
295: my $location = "/adm/groupsort?catalogmode=interactive&";
296: $location .= "form=$form&element=$element&mode=parmset&acts=";
297: $catalogmodefunctions=<<END;
298: // mode = $mode
299: function select_data(url) {
300: changeURL(url);
301: self.close();
302: }
303:
304: function select_group() {
305: window.location="$location"+document.forms.fileattr.acts.value;
306: }
307:
308: function changeURL(val) {
309: if (window.opener.document) {
310: var elementname = "$element"+"_value";
311: var checkboxname = "$element"+"_setparmval";
312: window.opener.document.forms["$form"].elements[elementname].value=val;
313: window.opener.document.forms["$form"].elements[checkboxname].checked=true;
314: } else {
315: alert("The file you selected is: "+val);
316: }
317: }
318:
319: END
320: }
321: }
322: $catalogmodefunctions.=<<END;
323: var acts='';
324: function rep_dirpath(suffix,val) {
325: eval("document.forms.dirpath"+suffix+".acts.value=val");
326: }
327: END
328: if ($ENV{'form.catalogmode'} eq 'groupimport') {
329: $catalogmodefunctions.=<<END;
330: function queue(val) {
331: if (eval("document.forms."+val+".filelink.checked")) {
332: var l=val.length;
333: var v=val.substring(4,l);
334: document.forms.fileattr.acts.value+='1a'+v+'b';
335: }
336: else {
337: var l=val.length;
338: var v=val.substring(4,l);
339: document.forms.fileattr.acts.value+='0a'+v+'b';
340: }
341: }
342: END
343: }
344:
345: # ---------------------------------------------------------------- Print Header
346: $r->print(<<ENDHEADER);
347: <html>
348: <head>
349: <title>The LearningOnline Network With CAPA Directory Browser</title>
350:
351: <script type="text/javascript">
352: $catalogmodefunctions
353: function openWindow(url, wdwName, w, h, toolbar,scrollbar,locationbar) {
354: var xpos = (screen.width-w)/2;
355: xpos = (xpos < 0) ? '0' : xpos;
356: var ypos = (screen.height-h)/2-30;
357: ypos = (ypos < 0) ? '0' : ypos;
358: var options = "width=" + w + ",height=" + h + ",screenx="+xpos+",screeny="+ypos+",";
359: options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
360: options += "menubar=no,toolbar="+toolbar+",location="+locationbar+",directories=no";
361: var newWin = window.open(url, wdwName, options);
362: newWin.focus();
363: }
364: function gothere(val) {
365: window.location=val+'?acts='+document.forms.fileattr.acts.value;
366: }
367: </script>
368:
369: </head>
370: ENDHEADER
371: my ($headerdom)=($uri=~/^\/res\/(\w+)\//);
372: $r->print(&Apache::loncommon::bodytag('Browse Resources',undef,undef,undef,
373: $headerdom));
374: # - Evaluate actions from previous page (both cumulatively and chronologically)
375: if ($ENV{'form.catalogmode'} eq 'groupimport') {
376: my $acts=$ENV{'form.acts'};
377: my @Acts=split(/b/,$acts);
378: my %ahash;
379: my %achash;
380: my $ac=0;
381: # some initial hashes for working with data
382: foreach (@Acts) {
383: my ($state,$ref)=split(/a/);
384: $ahash{$ref}=$state;
385: $achash{$ref}=$ac;
386: $ac++;
387: }
388: # sorting through the actions and changing the global database hash
389: foreach (sort {$achash{$a}<=>$achash{$b}} (keys %ahash)) {
390: my $key=$_;
391: if ($ahash{$key} eq '1') {
392: $hash{'store_'.$hash{'pre_'.$key.'_link'}}=
393: $hash{'pre_'.$key.'_title'};
394: $hash{'storectr_'.$hash{'pre_'.$key.'_link'}}=
395: $hash{'storectr'}+0;
396: $hash{'storectr'}++;
397: }
398: if ($ahash{$key} eq '0') {
399: if ($hash{'store_'.$hash{'pre_'.$key.'_link'}}) {
400: delete $hash{'store_'.$hash{'pre_'.$key.'_link'}};
401: }
402: }
403: }
404: # deleting the previously cached listing
405: foreach (keys %hash) {
406: if ($_ =~ /^pre_/ && $_ =~/link$/) {
407: my $key = $_;
408: $key =~ s/^pre_//;
409: $key =~ s/_[^_]*$//;
410: delete $hash{'pre_'.$key.'_title'};
411: delete $hash{'pre_'.$key.'_link'};
412: }
413: }
414: }
415:
416: # ---------------------------------- get state of file attributes to be showing
417: if ($ENV{'form.attrs'}) {
418: for (my $i=0; $i<=11; $i++) {
419: delete $hash{'display_attrs_'.$i};
420: if ($ENV{'form.attr'.$i} == 1) {
421: $attrchk[$i] = 'checked';
422: $hash{'display_attrs_'.$i} = 1;
423: }
424: }
425: } else {
426: for (my $i=0; $i<=11; $i++) {
427: $attrchk[$i] = 'checked' if $hash{'display_attrs_'.$i} == 1;
428: }
429: }
430:
431: # ------------------------------- output state of file attributes to be showing
432: # All versions has to the last item
433: # since it does not take an extra col
434: my %lt=&Apache::lonlocal::texthash(
435: 'ti' => 'Title',
436: 'si' => 'Size',
437: 'la' => 'Last access',
438: 'lm' => 'Last modified',
439: 'st' => 'Statistics',
440: 'au' => 'Author',
441: 'kw' => 'Keywords',
442: 'ln' => 'Language',
443: 'sa' => 'Source Available',
444: 'sr' => 'Show resource',
445: 'li' => 'Linked/Related Resources',
446: 'av' => 'All versions',
447: 'ud' => 'Update Display'
448: );
449: $r->print(<<END);
450: <form method="post" name="fileattr" action="$uri"
451: enctype="application/x-www-form-urlencoded">
452: <label><input type="checkbox" name="attr9" value="1" $attrchk[9] onClick="this.form.submit();" /> $lt{'av'}</label>
453: <table border="0">
454: <tr>
455: <td><label><input type="checkbox" name="attr0" value="1" $attrchk[0] onClick="this.form.submit();" /> $lt{'ti'}</label></td>
456: <td><label><input type="checkbox" name="attr4" value="1" $attrchk[4] onClick="this.form.submit();" /> $lt{'au'}</label></td>
457: <td><label><input type="checkbox" name="attr5" value="1" $attrchk[5] onClick="this.form.submit();" /> $lt{'kw'}</label></td>
458: <td><label><input type="checkbox" name="attr6" value="1" $attrchk[6] onClick="this.form.submit();" /> $lt{'ln'}</label></td>
459: </tr>
460: <tr>
461: <td><label><input type="checkbox" name="attr1" value="1" $attrchk[1] onClick="this.form.submit();" /> $lt{'si'}</label></td>
462: <td><label><input type="checkbox" name="attr2" value="1" $attrchk[2] onClick="this.form.submit();" /> $lt{'la'}</label></td>
463: <td><label><input type="checkbox" name="attr3" value="1" $attrchk[3] onClick="this.form.submit();" /> $lt{'lm'}</label></td>
464: <td><label><input type="checkbox" name="attr10" value="1" $attrchk[10] onClick="this.form.submit();" /> $lt{'sa'}</label></td>
465: </tr>
466: <tr>
467: <td><label><input type="checkbox" name="attr8" value="1" $attrchk[8] onClick="this.form.submit();" /> $lt{'st'}</label></td>
468: <td><label><input type="checkbox" name="attr11" value="1" $attrchk[11] onClick="this.form.submit();" /> $lt{'li'}</label></td>
469: <td><label><input type="checkbox" name="attr7" value="1" $attrchk[7] onClick="this.form.submit();" /> $lt{'sr'}</label></td>
470: <td> </td>
471: </tr>
472: </table>
473: <input type="hidden" name="attrs" value="1" />
474: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
475: <input type="hidden" name="acts" value="" />
476: $closebutton $groupimportbutton
477: END
478: # -------------- Filter out sequence containment in crumbs and "recent folders"
479: my $storeuri=$uri;
480: $storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
481: $storeuri=~s/\/+/\//g;
482: # ---------------------------------------------------------------- Bread crumbs
483: $r->print(&Apache::lonhtmlcommon::crumbs($storeuri,'','',
484: (($ENV{'form.catalogmode'} eq 'groupimport')?
485: 'document.forms.fileattr':'')).
486: &Apache::lonhtmlcommon::select_recent('residx','resrecent',
487: 'this.form.action=this.form.resrecent.options[this.form.resrecent.selectedIndex].value;this.form.submit();'));
488: # -------------------------------------------------------- Resource Home Button
489: my $reshome=$ENV{'course.'.$ENV{'request.course.id'}.'.reshome'};
490: if ($reshome) {
491: $r->print("<font size='+2'><a href='");
492: if ($ENV{'form.catalogmode'} eq 'groupimport') {
493: $r->print('javascript:document.forms.fileattr.action="'.$reshome.'";document.forms.fileattr.submit();');
494: } else {
495: $r->print($reshome);
496: }
497: $r->print("'>".&mt('Home').'</a></font>');
498: }
499: $r->print('</form>');
500: # ------------------------------------------------------ Remember where we were
501: &Apache::loncommon::storeresurl($storeuri);
502: &Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
503: # ----------------- output starting row to the indexed file/directory hierarchy
504: my $titleclr="#ddffff";
505: # $r->print(&initdebug());
506: # $r->print(&writedebug("Omit:@Omit")) if (@Omit);
507: # $r->print(&writedebug("Only:@Only")) if (@Only);
508: $r->print("<table width='100\%' border=0><tr><td bgcolor=#777777>\n");
509: $r->print("<table width='100\%' border=0><tr bgcolor=$titleclr>\n");
510: $r->print("<td $colspan><b>".&mt('Name')."</b></td>\n");
511: $r->print("<td><b>".&mt('Title')."</b></td>\n")
512: if ($hash{'display_attrs_0'} == 1);
513: $r->print("<td align=right><b>".&mt("Size")." (".&mt("bytes").") ".
514: "</b></td>\n") if ($hash{'display_attrs_1'} == 1);
515: $r->print("<td><b>".&mt("Last accessed")."</b></td>\n")
516: if ($hash{'display_attrs_2'} == 1);
517: $r->print("<td><b>".&mt("Last modified")."</b></td>\n")
518: if ($hash{'display_attrs_3'} == 1);
519: $r->print("<td><b>".&mt("Author(s)")."</b></td>\n")
520: if ($hash{'display_attrs_4'} == 1);
521: $r->print("<td><b>".&mt("Keywords")."</b></td>\n")
522: if ($hash{'display_attrs_5'} == 1);
523: $r->print("<td><b>".&mt("Language")."</b></td>\n")
524: if ($hash{'display_attrs_6'} == 1);
525: $r->print("<td><b>".&mt("Usage Statistics")." <br />(".
526: &mt("Courses/Network Hits").")</b> ".&mt('updated periodically')."</td>\n")
527: if ($hash{'display_attrs_8'} == 1);
528: $r->print("<td><b>".&mt("Source Available")."</b></td>\n")
529: if ($hash{'display_attrs_10'} == 1);
530: $r->print("<td><b>".&mt("Linked/Related Resources")."</b></td>\n")
531: if ($hash{'display_attrs_11'} == 1);
532: $r->print("<td><b>".&mt("Resource")."</b></td>\n")
533: if ($hash{'display_attrs_7'} == 1);
534: $r->print('</tr>');
535:
536: # ----------------- read in what directories have previously been set to "open"
537: foreach (keys %hash) {
538: if ($_ =~ /^diropen_status_/) {
539: my $key = $_;
540: $key =~ s/^diropen_status_//;
541: $dirs{$key} = $hash{$_};
542: }
543: }
544:
545: if ($ENV{'form.openuri'}) { # take care of review and refresh options
546: my $uri=$ENV{'form.openuri'};
547: if (exists($hash{'diropen_status_'.$uri})) {
548: my $cursta = $hash{'diropen_status_'.$uri};
549: $dirs{$uri} = 'open';
550: $hash{'diropen_status_'.$uri} = 'open';
551: if ($cursta eq 'open') {
552: $dirs{$uri} = 'closed';
553: $hash{'diropen_status_'.$uri} = 'closed';
554: }
555: } else {
556: $hash{'diropen_status_'.$uri} = 'open';
557: $dirs{$uri} = 'open';
558: }
559: }
560:
561: my $toplevel;
562: my $indent = 0;
563: $uri = $uri.'/' if $uri !~ /.*\/$/;
564:
565: if ($ENV{'form.dirPointer'} ne 'on') {
566: $hash{'top.level'} = $uri;
567: $toplevel = $uri;
568: } else {
569: $toplevel = $hash{'top.level'};
570: }
571:
572: # -------------------------------- if not at top level, provide an uplink arrow
573: if ($toplevel ne '/res/'){
574: my (@uri_com) = split(/\//,$uri);
575: pop @uri_com;
576: my $upone = join('/',@uri_com);
577: my @list = qw (0);
578: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
579: $indent = 1;
580: }
581:
582: # -------- recursively go through all the directories and output as appropriate
583: &scanDir ($r,$toplevel,$indent,\%hash);
584:
585: # ---------------------------- embed hidden information useful for group import
586: $r->print("<form name='fnum'>");
587: $r->print("<input type='hidden' name='fnum' value='$fnum'></form>");
588:
589: # -------------------------------------------------------------- end the tables
590: $r->print('</table>');
591: $r->print('</td></tr></table>');
592:
593: # --------------------------------------------------- end the output and return
594: $r->print('</body></html>'."\n");
595: }
596: if(! $c->aborted()) {
597: # write back into the temporary file
598: my %dbfile;
599: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
600: while (my($key,$value) = each(%hash)) {
601: $dbfile{$key}=$value;
602: }
603: untie(%dbfile);
604: }
605: }
606:
607: return OK;
608: }
609:
610: # ----------------------------------------------- recursive scan of a directory
611: sub scanDir {
612: my ($r,$startdir,$indent,$hashref)=@_;
613: my $c = $r->connection();
614: my ($compuri,$curdir);
615: my $dirptr=16384;
616: my $obs;
617: $indent++;
618: my %dupdirs = %dirs;
619: my @list=&get_list($r,$startdir);
620: foreach my $line (@list) {
621: return if ($c->aborted());
622: #This is a kludge, sorry aboot this
623: my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
624: next if($strip =~ /.*\.meta$/ | $obs eq '1');
625: my (@fileparts) = split(/\./,$strip);
626: if ($hash{'display_attrs_9'} != 1) {
627: # if not all versions to be shown
628: if (scalar(@fileparts) >= 3) {
629: my $fext = pop @fileparts;
630: my $ov = pop @fileparts;
631: my $fname = join ('.',@fileparts,$fext);
632: next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
633: }
634: }
635:
636: if ($dom eq 'domain') {
637: # dom list has full path /res/<domain name>/ already
638: $curdir='';
639: $compuri = (split(/\&/,$line))[0];
640: } else {
641: # user, dir & file have name only, i.e., w/o path
642: $compuri = join('',$startdir,$strip,'/');
643: $curdir = $startdir;
644: }
645: my $diropen = 'closed';
646: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
647: while (my ($key,$val)= each %dupdirs) {
648: if ($key eq $compuri and $val eq "open") {
649: $diropen = "opened";
650: delete($dupdirs{$key});
651: delete($dirs{$key});
652: }
653: }
654: }
655: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
656: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
657: }
658: $indent--;
659: }
660:
661: # --------------- get complete matched list based on the uri (returns an array)
662: sub get_list {
663: my ($r,$uri)=@_;
664: my @list=();
665: (my $luri = $uri) =~ s/\//_/g;
666: if ($ENV{'form.updatedisplay'}) {
667: foreach (keys %hash) {
668: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
669: delete $hash{$_} if ($_ =~ /^dirlist_timestamp_files_/);
670: }
671: }
672:
673: if (defined($hash{'dirlist_files_'.$luri}) &&
674: $hash{'dirlist_timestamp_files_'.$luri}+600 > (time)) {
675: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
676: } elsif ($uri=~/\.(page|sequence)\/$/) {
677: # is a page or a sequence
678: $uri=~s/\/$//;
679: $uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
680: $uri=~s/\/+/\//g;
681: foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
682: my @ratpart=split(/\:/,$_);
683: push @list,$ratpart[1];
684: }
685: $hash{'dirlist_files_'.$luri} = join("\n",@list);
686: } else {
687: # is really a directory
688: @list = &Apache::lonnet::dirlist($uri);
689: $hash{'dirlist_files_'.$luri} = join("\n",@list);
690: $hash{'dirlist_timestamp_files_'.$luri} = time;
691: }
692: return @list=&match_ext($r,@list);
693: }
694:
695: sub dynmetaread {
696: my $uri=shift;
697: if (($hash{'display_attrs_8'}==1) || ($hash{'display_attrs_11'}==1)) {
698: # We don't want the filename
699: $uri=~s/\/[^\/]+$//;
700: # Did we already see this?
701: my $builddir=$uri;
702: while ($builddir) {
703: if ($dynread{$builddir}) {
704: return 0;
705: }
706: $builddir=~s/\/[^\/]+$//;
707: }
708: # Actually get the data
709: %dynhash=
710: (%dynhash,&Apache::lonmeta::get_dynamic_metadata_from_sql($uri));
711: # Remember that we got it
712: $dynread{$uri}=1;
713: }
714: }
715:
716: sub initdebug {
717: return <<ENDJS;
718: <script>
719: var debugging = true;
720: if (debugging) {
721: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
722: }
723:
724: function output(text) {
725: if (debugging) {
726: debuggingWindow.document.writeln(text);
727: }
728: }
729: output("<html><head><title>Debugging Window</title></head><body><pre>");
730: </script>
731: ENDJS
732: }
733:
734: sub writedebug {
735: my $text = shift;
736: return "<script>output('$text');</script>";
737: }
738:
739: # -------------------- filters out files based on extensions (returns an array)
740: sub match_ext {
741: my ($r,@packlist)=@_;
742: my @trimlist;
743: my $nextline;
744: my @fileext;
745: my $dirptr=16384;
746:
747: foreach my $line (@packlist) {
748: chomp $line;
749: $line =~ s/^\/home\/httpd\/html//;
750: my @unpackline = split (/\&/,$line);
751: next if ($unpackline[0] eq '.');
752: next if ($unpackline[0] eq '..');
753: my @filecom = split (/\./,$unpackline[0]);
754: my $fext = pop(@filecom);
755: my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
756: if ($fnptr == 0 and $unpackline[3] ne "") {
757: my $embstyle = &Apache::loncommon::fileembstyle($fext);
758: push @trimlist,$line if (defined($embstyle) &&
759: ($embstyle ne 'hdn' or $fext eq 'meta'));
760: } else {
761: push @trimlist,$line;
762: }
763: }
764: @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
765: return @trimlist;
766: }
767:
768: # ------------------------------- displays one line in appropriate table format
769: sub display_line {
770: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
771: my (@pathfn, $fndir);
772: # there could be relative paths (files actually belonging into this directory)
773: # or absolute paths (for example, from sequences)
774: my $absolute;
775: my $pathprefix;
776: if ($line=~m|^/res/| && $startdir ne '') {
777: $absolute=1;
778: $pathprefix='';
779: } else {
780: $absolute=0;
781: $pathprefix=$startdir;
782: }
783: my $dirptr=16384;
784: my $fileclr="#ffffe6";
785: my $iconpath= $r->dir_config('lonIconsURL') . '/';
786:
787: my @filecom = split (/\&/,$line);
788: my @pathcom = split (/\//,$filecom[0]);
789: my $listname = $pathcom[scalar(@pathcom)-1];
790: my $fnptr = $filecom[3]&$dirptr;
791: my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
792: $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
793:
794: my $tabtag='</td>';
795: my $i=0;
796: while ($i<=11) {
797: $tabtag=join('',$tabtag,"<td> </td>")
798: if $hash{'display_attrs_'.$i} == 1;
799: $i++;
800: }
801: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
802:
803: # display uplink arrow
804: if ($filecom[1] eq 'viewOneUp') {
805: my $updir=$startdir;
806: # -------------- Filter out sequence containment in crumbs and "recent folders"
807: $updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
808: $updir=~s/\/+/\//g;
809:
810: $r->print("<tr valign='$valign' bgcolor=$fileclr>$extrafield");
811: $r->print("<td>\n");
812: $r->print ('<form method="post" name="dirpathUP" action="'.$updir.
813: '/" '.
814: 'onSubmit="return rep_dirpath(\'UP\','.
815: 'document.forms.fileattr.acts.value)" '.
816: 'enctype="application/x-www-form-urlencoded"'.
817: '>'."\n");
818: $r->print ('<input type=hidden name=openuri value="'.
819: $startdir.'">'."\n");
820: $r->print ('<input type="hidden" name="acts" value="">'."\n");
821: $r->print ('<input src="'.$iconpath.'arrow_up.gif"');
822: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
823: "\n");
824: $r->print(&mt("Up")." $tabtag</tr></form>\n");
825: return OK;
826: }
827: # Do we have permission to look at this?
828:
829: if($filecom[15] ne '1') { return OK if (!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])); }
830:
831: # make absolute links appear on different background
832: if ($absolute) { $fileclr='#ccdd99'; }
833:
834: # display domain
835: if ($filecom[1] eq 'domain') {
836: $r->print ('<input type="hidden" name="dirPointer" value="on">'."\n")
837: if ($ENV{'form.dirPointer'} eq "on");
838: $r->print("<tr valign='$valign' bgcolor=$fileclr>$extrafield");
839: $r->print("<td>");
840: &begin_form ($r,$filecom[0]);
841: my $anchor = $filecom[0];
842: $anchor =~ s/\///g;
843: $r->print ('<a name="'.$anchor.'">');
844: $r->print ('<input type="hidden" name="acts" value="">');
845: $r->print ('<input src="'.$iconpath.'folder_pointer_'.
846: $diropen.'.gif"');
847: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
848: "\n");
849: my $quotable_filecom = &Apache::loncommon::javascript_escape($filecom[0]);
850: $r->print ('<a href="javascript:gothere(\''.$quotable_filecom.
851: '\')"><img src="'.$iconpath.'server.gif"');
852: $r->print (' border="0" /></a>'."\n");
853: $r->print (&mt("Domain")." - $listname ");
854: if ($Apache::lonnet::domaindescription{$listname}) {
855: $r->print("(".$Apache::lonnet::domaindescription{$listname}.
856: ")");
857: }
858: $r->print (" $tabtag</tr></form>\n");
859: return OK;
860:
861: # display user directory
862: }
863: if ($filecom[1] eq 'user') {
864: $r->print("<tr valign=$valign bgcolor=$fileclr>$extrafield");
865: $r->print("<td nowrap>\n");
866: my $curdir = $startdir.$filecom[0].'/';
867: my $anchor = $curdir;
868: $anchor =~ s/\///g;
869: &begin_form ($r,$curdir);
870: $r->print ('<a name="'.$anchor.'"><img src="'.$iconpath.
871: 'whitespace1.gif" border="0" />'."\n");
872: $r->print ('<input type="hidden" name="acts" value="">');
873: $r->print ('<input src="'.$iconpath.'folder_pointer_'.$diropen.
874: '.gif"');
875: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
876: "\n");
877: my $quotable_curdir = &Apache::loncommon::javascript_escape($curdir);
878: $r->print ('<a href="javascript:gothere(\''.$quotable_curdir
879: .'\')"><img src='.
880: $iconpath.'quill.gif border="0" name="'.$msg.
881: '" height="22" /></a>');
882: my $domain=(split(m|/|,$startdir))[2];
883: my $plainname=&Apache::loncommon::plainname($listname,$domain);
884: $r->print ($listname);
885: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
886: $r->print ($tabtag.'</tr></form>'."\n");
887: return OK;
888: }
889:
890: # display file
891: if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
892: my $filelink = $pathprefix.$filecom[0];
893: my @file_ext = split (/\./,$listname);
894: my $curfext = $file_ext[-1];
895: if (@Omit) {
896: foreach (@Omit) { return OK if ($curfext eq $_); }
897: }
898: if (@Only) {
899: my $skip = 1;
900: foreach (@Only) { $skip = 0 if ($curfext eq $_); }
901: return OK if ($skip > 0);
902: }
903: # Set the icon for the file
904: my $iconname = &Apache::loncommon::icon($listname);
905: $r->print("<tr valign='$valign' bgcolor=$fileclr><td nowrap='1' align='top'>");
906:
907: if ($ENV{'form.catalogmode'} eq 'interactive') {
908: my $quotable_filelink = &Apache::loncommon::javascript_escape($filelink);
909: $r->print("<a href=\"javascript:select_data(\'",
910: $quotable_filelink,"')\">");
911: $r->print("<img src='",$iconpath,"select.gif' border='0' /></a>".
912: "\n");
913: $r->print("</td><td nowrap>");
914: } elsif ($ENV{'form.catalogmode'} eq 'groupimport') {
915: $r->print("<form name='form$fnum'>\n");
916: $r->print("<input type='checkbox' name='filelink"."' ".
917: "value='$filelink' onClick='".
918: "javascript:queue(\"form$fnum\")' ");
919: if ($hash{'store_'.$filelink}) {
920: $r->print("checked");
921: }
922: $r->print(">\n");
923: $r->print("</form>\n");
924: $r->print("</td><td nowrap>");
925: $hash{"pre_${fnum}_link"}=$filelink;
926: $fnum++;
927: }
928: # Form to open or close sequences
929: if ($filelink=~/\.(page|sequence)$/) {
930: my $curdir = $startdir.$filecom[0].'/';
931: my $anchor = $curdir;
932: $anchor =~ s/\///g;
933: &begin_form($r,$curdir);
934: $indent--;
935: }
936: # General indentation
937: if ($indent > 0 and $indent < 11) {
938: $r->print("<img src=",$iconpath,"whitespace",$indent,
939: ".gif border='0' />\n");
940: } elsif ($indent >0) {
941: my $ten = int($indent/10.);
942: my $rem = $indent%10.0;
943: my $count = 0;
944: while ($count < $ten) {
945: $r->print("<img src=",$iconpath,
946: "whitespace10.gif border='0' />\n");
947: $count++;
948: }
949: $r->print("<img src=",$iconpath,"whitespace",$rem,
950: ".gif border='0' />\n") if $rem > 0;
951: }
952: # Sequence open/close icon
953: if ($filelink=~/\.(page|sequence)$/) {
954: my $curdir = $startdir.$filecom[0].'/';
955: my $anchor = $curdir;
956: $anchor =~ s/\///g;
957: $r->print ('<input type="hidden" name="acts" value="">');
958: $r->print ('<a name="'.$anchor.'"><input src="'.$iconpath.
959: 'folder_pointer_'.$diropen.'.gif"');
960: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
961: "\n");
962: }
963: # Filetype icons
964: $r->print("<img src='$iconname' border='0' />\n");
965: # Close form to open/close sequence
966: if ($filelink=~/\.(page|sequence)$/) {
967: $r->print('</form>');
968: }
969: my $quotable_filelink = &Apache::loncommon::javascript_escape($filelink);
970:
971:
972: $r->print (" <a href=\"javascript:openWindow('".$quotable_filelink.
973: "', 'previewfile', '450', '500', 'no', 'yes','yes')\";".
974: " TARGET=_self>$listname</a> ");
975:
976: $r->print (" (<a href=\"javascript:openWindow('".$quotable_filelink.
977: ".meta', 'metadatafile', '500', '550', 'no', 'yes','no')\"; ".
978: "TARGET=_self>metadata</a>) ");
979: $r->print("</td>\n");
980: if ($hash{'display_attrs_0'} == 1) {
981: my $title = &Apache::lonnet::gettitle($filelink,'title');
982: $r->print('<td> '.($title eq '' ? ' ' : $title).
983: ' </td>'."\n");
984: }
985: $r->print('<td align=right> ',
986: $filecom[8]," </td>\n")
987: if $hash{'display_attrs_1'} == 1;
988: $r->print('<td> '.
989: (localtime($filecom[9]))." </td>\n")
990: if $hash{'display_attrs_2'} == 1;
991: $r->print('<td> '.
992: (localtime($filecom[10]))." </td>\n")
993: if $hash{'display_attrs_3'} == 1;
994:
995: if ($hash{'display_attrs_4'} == 1) {
996: my $author = &Apache::lonnet::metadata($filelink,'author');
997: $r->print('<td> '.($author eq '' ? ' ' : $author).
998: " </td>\n");
999: }
1000: if ($hash{'display_attrs_5'} == 1) {
1001: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1002: # $keywords = ' ' if (!$keywords);
1003: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1004: " </td>\n");
1005: }
1006: #'
1007:
1008: if ($hash{'display_attrs_6'} == 1) {
1009: my $lang = &Apache::lonnet::metadata($filelink,'language');
1010: $lang = &Apache::loncommon::languagedescription($lang);
1011: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1012: " </td>\n");
1013: }
1014: if ($hash{'display_attrs_8'} == 1) {
1015: # statistics
1016: &dynmetaread($filelink);
1017: $r->print("<td>");
1018: &dynmetaprint($r,$filelink,'count');
1019: &dynmetaprint($r,$filelink,'course');
1020: &dynmetaprint($r,$filelink,'stdno');
1021: &dynmetaprint($r,$filelink,'avetries');
1022: &dynmetaprint($r,$filelink,'difficulty');
1023: &dynmetaprint($r,$filelink,'disc');
1024: &dynmetaprint($r,$filelink,'clear');
1025: &dynmetaprint($r,$filelink,'technical');
1026: &dynmetaprint($r,$filelink,'correct');
1027: &dynmetaprint($r,$filelink,'helpful');
1028: &dynmetaprint($r,$filelink,'depth');
1029: $r->print(" </td>\n");
1030:
1031: }
1032: if ($hash{'display_attrs_10'} == 1) {
1033: my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
1034: if($source eq 'open') {
1035: my $sourcelink = &Apache::lonsource::make_link($filelink,$listname);
1036: my $quotable_sourcelink = &Apache::loncommon::javascript_escape($sourcelink);
1037: $r->print('<td>'."<a href=\"javascript:openWindow('"
1038: .$quotable_sourcelink.
1039: "', 'previewsource', '700', '700', 'no', 'yes','yes')\";".
1040: " TARGET=_self>Yes</a> "."</td>\n");
1041: } else { #A cuddled else. :P
1042: $r->print("<td> </td>\n");
1043: }
1044: }
1045: if ($hash{'display_attrs_11'} == 1) {
1046: # links
1047: &dynmetaread($filelink);
1048: $r->print('<td>');
1049: &dynmetaprint($r,$filelink,'goto_list');
1050: &dynmetaprint($r,$filelink,'comefrom_list');
1051: &dynmetaprint($r,$filelink,'sequsage_list');
1052: &dynmetaprint($r,$filelink,'dependencies');
1053: $r->print('</td>');
1054: }
1055: if ($hash{'display_attrs_7'} == 1) {
1056: # Show resource
1057: my $output='';
1058: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
1059: if ($embstyle eq 'ssi') {
1060: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
1061: '.tmp';
1062: if ((!$ENV{'form.updatedisplay'}) &&
1063: (-e $cache)) {
1064: open(FH,$cache);
1065: $output=join("\n",<FH>);
1066: close(FH);
1067: } else {
1068: $output=&Apache::lonnet::ssi_body($filelink);
1069: open(FH,">$cache");
1070: print FH $output;
1071: close(FH);
1072: }
1073: $output='<font size="-2">'.$output.'</font>';
1074: } elsif ($embstyle eq 'img') {
1075: $output='<img src="'.$filelink.'" />';
1076: } elsif ($filelink=~/^\/res\/(\w+)\/(\w+)\//) {
1077: $output='<img src="http://'.
1078: $Apache::lonnet::hostname{&Apache::lonnet::homeserver($2,$1)}.
1079: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1080: }
1081: $r->print('<td> '.($output eq '' ? ' ':$output).
1082: " </td>\n");
1083: }
1084: $r->print("</tr>\n");
1085: }
1086:
1087: # -- display directory
1088: if ($fnptr == $dirptr) {
1089: my $curdir = $startdir.$filecom[0].'/';
1090: my $anchor = $curdir;
1091: $anchor =~ s/\///g;
1092: $r->print("<tr bgcolor=$fileclr>$extrafield<td valign=$valign>");
1093: &begin_form ($r,$curdir);
1094: my $indentm1 = $indent-1;
1095: if ($indentm1 < 11 and $indentm1 > 0) {
1096: $r->print("<img src=",$iconpath,"whitespace",$indentm1,
1097: ".gif border='0' />\n");
1098: } else {
1099: my $ten = int($indentm1/10.);
1100: my $rem = $indentm1%10.0;
1101: my $count = 0;
1102: while ($count < $ten) {
1103: $r->print ("<img src=",$iconpath
1104: ,"whitespace10.gif border='0' />\n");
1105: $count++;
1106: }
1107: $r->print ("<img src=",$iconpath,"whitespace",$rem,
1108: ".gif border='0' />\n") if $rem > 0;
1109: }
1110: $r->print ('<input type="hidden" name="acts" value="">');
1111: $r->print ('<a name="'.$anchor.'"><input src="'.$iconpath.
1112: 'folder_pointer_'.$diropen.'.gif"');
1113: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
1114: "\n");
1115: my $quotable_curdir = &Apache::loncommon::javascript_escape($curdir);
1116: $r->print ('<a href="javascript:gothere(\''
1117: .$quotable_curdir.'\')"><img src="'.
1118: $iconpath.'folder_'.$diropen.'.gif" border="0" /></a>'.
1119: "\n");
1120: $r->print ("$listname</td>\n");
1121: # Attributes
1122: my $filelink = $startdir.$filecom[0].'/default';
1123:
1124: if ($hash{'display_attrs_0'} == 1) {
1125: my $title = &Apache::lonnet::gettitle($filelink,'title');
1126: $r->print('<td> '.($title eq '' ? ' ' : $title).
1127: ' </td>'."\n");
1128: }
1129: $r->print('<td align=right> ',
1130: $filecom[8]," </td>\n")
1131: if $hash{'display_attrs_1'} == 1;
1132: $r->print('<td> '.
1133: (localtime($filecom[9]))." </td>\n")
1134: if $hash{'display_attrs_2'} == 1;
1135: $r->print('<td> '.
1136: (localtime($filecom[10]))." </td>\n")
1137: if $hash{'display_attrs_3'} == 1;
1138:
1139: if ($hash{'display_attrs_4'} == 1) {
1140: my $author = &Apache::lonnet::metadata($filelink,'author');
1141: $r->print('<td> '.($author eq '' ? ' ' : $author).
1142: " </td>\n");
1143: }
1144: if ($hash{'display_attrs_5'} == 1) {
1145: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1146: # $keywords = ' ' if (!$keywords);
1147: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1148: " </td>\n");
1149: }
1150: if ($hash{'display_attrs_6'} == 1) {
1151: my $lang = &Apache::lonnet::metadata($filelink,'language');
1152: $lang = &Apache::loncommon::languagedescription($lang);
1153: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1154: " </td>\n");
1155: }
1156: if ($hash{'display_attrs_8'} == 1) {
1157: $r->print('<td> </td>');
1158: }
1159: if ($hash{'display_attrs_10'} == 1) {
1160: $r->print('<td> </td>');
1161: }
1162: if ($hash{'display_attrs_11'} == 1) {
1163: $r->print('<td> </td>');
1164: }
1165: if ($hash{'display_attrs_7'} == 1) {
1166: $r->print('<td> </td>');
1167: }
1168: $r->print('</form></tr>');
1169: }
1170:
1171: }
1172:
1173: sub dynmetaprint {
1174: my ($r,$filelink,$item)=@_;
1175: if ($dynhash{$filelink}->{$item}) {
1176: $r->print("\n<br />".$fieldnames{$item}.': '.
1177: &Apache::lonmeta::prettyprint($item,
1178: $dynhash{$filelink}->{$item},
1179: (($ENV{'form.catalogmode'} ne 'groupimport')?'preview':''),
1180: '',
1181: (($ENV{'form.catalogmode'} eq 'groupimport')?'document.forms.fileattr':''),1));
1182: }
1183: }
1184:
1185: # ------------------- prints the beginning of a form for directory or file link
1186: sub begin_form {
1187: my ($r,$uri) = @_;
1188: my $anchor = $uri;
1189: $anchor =~ s/\///g;
1190: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1191: '#'.$anchor.
1192: '" onSubmit="return rep_dirpath(\''.$dnum.'\''.
1193: ',document.forms.fileattr.acts.value)" '.
1194: 'enctype="application/x-www-form-urlencoded">'."\n");
1195: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'">'.
1196: "\n");
1197: $r->print ('<input type="hidden" name="dirPointer" value="on">'."\n");
1198: $dnum++;
1199: }
1200:
1201: # --------- settings whenever the user causes the indexer window to be launched
1202: sub start_fresh_session {
1203: delete $hash{'form.catalogmode'};
1204: delete $hash{'form.mode'};
1205: delete $hash{'form.form'};
1206: delete $hash{'form.element'};
1207: delete $hash{'form.omit'};
1208: delete $hash{'form.only'};
1209: foreach (keys %hash) {
1210: delete $hash{$_} if (/^(pre_|store)/);
1211: }
1212: }
1213:
1214: # ------------------------------------------------------------------- setvalues
1215: sub setvalues {
1216: # setvalues is used in registerurl to synchronize the database
1217: # hash and environment hashes
1218: my ($H1,$h1key,$H2,$h2key) =@_;
1219: #
1220: if (exists $H2->{$h2key}) {
1221: $H1->{$h1key} = $H2->{$h2key};
1222: } elsif (exists $H1->{$h1key}) {
1223: $H2->{$h2key} = $H1->{$h1key};
1224: }
1225: }
1226:
1227: 1;
1228:
1229: sub cleanup {
1230: if (tied(%hash)){
1231: &Apache::lonnet::logthis('Cleanup indexer: hash');
1232: }
1233: }
1234:
1235:
1236:
1237:
1238:
1239: =head1 NAME
1240:
1241: Apache::lonindexer - mod_perl module for cross server filesystem browsing
1242:
1243: =head1 SYNOPSIS
1244:
1245: Invoked by /etc/httpd/conf/srm.conf:
1246:
1247: <LocationMatch "^/res.*/$">
1248: SetHandler perl-script
1249: PerlHandler Apache::lonindexer
1250: </LocationMatch>
1251:
1252: =head1 INTRODUCTION
1253:
1254: This module enables a scheme of browsing across a cross server.
1255:
1256: This is part of the LearningOnline Network with CAPA project
1257: described at http://www.lon-capa.org.
1258:
1259: =head1 BEGIN SUBROUTINE
1260:
1261: This routine is only run once after compilation.
1262:
1263: =over 4
1264:
1265: =item *
1266:
1267: Initializes %language hash table.
1268:
1269: =back
1270:
1271: =head1 HANDLER SUBROUTINE
1272:
1273: This routine is called by Apache and mod_perl.
1274:
1275: =over 4
1276:
1277: =item *
1278:
1279: read in machine configuration variables
1280:
1281: =item *
1282:
1283: see if called from an interactive mode
1284:
1285: =item *
1286:
1287: refresh environment with user database values (in %hash)
1288:
1289: =item *
1290:
1291: define extra fields and buttons in case of special mode
1292:
1293: =item *
1294:
1295: set catalogmodefunctions to have extra needed javascript functionality
1296:
1297: =item *
1298:
1299: print header
1300:
1301: =item *
1302:
1303: evaluate actions from previous page (both cumulatively and chronologically)
1304:
1305: =item *
1306:
1307: output title
1308:
1309: =item *
1310:
1311: get state of file attributes to be showing
1312:
1313: =item *
1314:
1315: output state of file attributes to be showing
1316:
1317: =item *
1318:
1319: output starting row to the indexed file/directory hierarchy
1320:
1321: =item *
1322:
1323: read in what directories have previously been set to "open"
1324:
1325: =item *
1326:
1327: if not at top level, provide an uplink arrow
1328:
1329: =item *
1330:
1331: recursively go through all the directories and output as appropriate
1332:
1333: =item *
1334:
1335: information useful for group import
1336:
1337: =item *
1338:
1339: end the tables
1340:
1341: =item *
1342:
1343: end the output and return
1344:
1345: =back
1346:
1347: =head1 OTHER SUBROUTINES
1348:
1349: =over 4
1350:
1351: =item *
1352:
1353: scanDir - recursive scan of a directory
1354:
1355: =item *
1356:
1357: get_list - get complete matched list based on the uri (returns an array)
1358:
1359: =item *
1360:
1361: match_ext - filters out files based on extensions (returns an array)
1362:
1363: =item *
1364:
1365: display_line - displays one line in appropriate table format
1366:
1367: =item *
1368:
1369: begin_form - prints the beginning of a form for directory or file link
1370:
1371: =item *
1372:
1373: start_fresh_session - settings whenever the user causes the indexer window
1374: to be launched
1375:
1376: =back
1377:
1378: =cut
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