1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.117 2004/06/22 13:27:51 www 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: # ----------------------------- Handling routine called via Apache and mod_perl
77: sub handler {
78: my $r = shift;
79: my $c = $r->connection();
80: &Apache::loncommon::content_type($r,'text/html');
81: &Apache::loncommon::no_cache($r);
82: $r->send_http_header;
83: return OK if $r->header_only;
84: $fnum=0;
85: $dnum=0;
86:
87: # Deal with stupid global variables (is there a way around making
88: # these global to this package? It is just so wrong....)
89: undef (@Only);
90: undef (@Omit);
91: %fieldnames=&Apache::lonmeta::fieldnames();
92:
93: # ------------------------------------- read in machine configuration variables
94: my $iconpath= $r->dir_config('lonIconsURL') . "/";
95: my $domain = $r->dir_config('lonDefDomain');
96: my $role = $r->dir_config('lonRole');
97: my $loadlim = $r->dir_config('lonLoadLim');
98: my $servadm = $r->dir_config('lonAdmEMail');
99: my $sysadm = $r->dir_config('lonSysEMail');
100: my $lonhost = $r->dir_config('lonHostID');
101: my $tabdir = $r->dir_config('lonTabDir');
102:
103: my $fileclr='#ffffe6';
104: my $line;
105: my (@attrchk,@openpath);
106: my $uri=$r->uri;
107:
108: # -------------------------------------- see if called from an interactive mode
109: # Get the parameters from the query string
110: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
111: ['catalogmode','launch','acts','mode','form','element',
112: 'only','omit','titleelement']);
113: #-------------------------------------------------------------------
114: my $closebutton='';
115: my $groupimportbutton='';
116: my $colspan='';
117:
118: $extrafield='';
119: my $diropendb =
120: "/home/httpd/perl/tmp/$ENV{'user.domain'}_$ENV{'user.name'}_indexer.db";
121: %hash = ();
122: {
123: my %dbfile;
124: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_READER(),0640)) {
125: while(my($key,$value)=each(%dbfile)) {
126: $hash{$key}=$value;
127: }
128: untie(%dbfile);
129: }
130: }
131: {
132: if ($ENV{'form.launch'} eq '1') {
133: &start_fresh_session();
134: }
135: #Hijack lonindexer to verify a title and be close down.
136: if ($ENV{'form.launch'} eq '2') {
137: $r->content_type('text/html');
138: my $extra='';
139: if (defined($ENV{'form.titleelement'})) {
140: my $verify_title = &Apache::lonnet::gettitle($ENV{'form.acts'});
141: # &Apache::lonnet::logthis("Hrrm $ENV{'form.acts'} -- $verify_title");
142: $verify_title=~s/'/\\'/g;
143: $extra='window.opener.document.forms["'.$ENV{'form.form'}.'"].elements["'.$ENV{'form.titleelement'}.'"].value=\''.$verify_title.'\';';
144: }
145: $r->print(<<ENDSUBM);
146: <html>
147: <script type="text/javascript">
148: function load() {
149: window.opener.document.forms["$ENV{'form.form'}"].elements["$ENV{'form.element'}"].value='$ENV{'form.acts'}';
150: $extra
151: window.close();
152: }
153: </script>
154: <body onLoad=load();>
155: </body>
156: </html>
157: ENDSUBM
158: return OK;
159: }
160:
161: # -------------------- refresh environment with user database values (in %hash)
162: &setvalues(\%hash,'form.catalogmode',\%ENV,'form.catalogmode' );
163:
164: # --------------------- define extra fields and buttons in case of special mode
165: if ($ENV{'form.catalogmode'} eq 'interactive') {
166: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
167: '<a name="$anchor"><img src="'.$iconpath.'whitespace1.gif"'.
168: ' border="0" /></td>';
169: $colspan=" colspan='2' ";
170: my $cl=&mt('Close');
171: $closebutton=<<END;
172: <input type="button" name="close" value='$cl' onClick="self.close()">
173: END
174: }
175: elsif ($ENV{'form.catalogmode'} eq 'groupimport') {
176: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
177: '<a name="$anchor"><img src="'.$iconpath.'whitespace1.gif"'.
178: ' border="0" /></td>';
179: $colspan=" colspan='2' ";
180: my $cl=&mt('Close');
181: my $gi=&mt('Group Import');
182: $closebutton=<<END;
183: <input type="button" name="close" value='$cl' onClick="self.close()">
184: END
185: $groupimportbutton=<<END;
186: <input type="button" name="groupimport" value='$gi'
187: onClick="javascript:select_group()">
188: END
189: }
190: # Additions made by Matthew to make the browser a little easier to deal
191: # with in the future.
192: #
193: # $mode (at this time) indicates if we are in edit mode.
194: # $form is the name of the form that the URL is placed when the
195: # selection is made.
196: # $element is the name of the element in $formname which receives
197: # the URL.
198: #&Apache::lonxml::debug('Checking mode, form, element');
199: &setvalues(\%hash,'form.mode' ,\%ENV,'form.mode' );
200: &setvalues(\%hash,'form.form' ,\%ENV,'form.form' );
201: &setvalues(\%hash,'form.element' ,\%ENV,'form.element');
202: &setvalues(\%hash,'form.titleelement',\%ENV,'form.titleelement');
203: &setvalues(\%hash,'form.only' ,\%ENV,'form.only' );
204: &setvalues(\%hash,'form.omit' ,\%ENV,'form.omit' );
205:
206: # Deal with 'omit' and 'only'
207: if (exists $ENV{'form.omit'}) {
208: @Omit = split(',',$ENV{'form.omit'});
209: }
210: if (exists $ENV{'form.only'}) {
211: @Only = split(',',$ENV{'form.only'});
212: }
213:
214: my $mode = $ENV{'form.mode'};
215: my ($form,$element,$titleelement);
216: if ($mode eq 'edit' || $mode eq 'parmset') {
217: $form = $ENV{'form.form'};
218: $element = $ENV{'form.element'};
219: $titleelement = $ENV{'form.titleelement'};
220: }
221: #&Apache::lonxml::debug("mode=$mode form=$form element=$element titleelement=$titleelement");
222: # ------ set catalogmodefunctions to have extra needed javascript functionality
223: my $catalogmodefunctions='';
224: if ($ENV{'form.catalogmode'} eq 'interactive' or
225: $ENV{'form.catalogmode'} eq 'groupimport') {
226: # The if statement below sets us up to use the old version
227: # by default (ie. if $mode is undefined). This is the easy
228: # way out. Hopefully in the future I'll find a way to get
229: # the calls dealt with in a more comprehensive manner.
230:
231: #
232: # There is now also mode "simple", which is for the simple version of the rat
233: #
234: #
235: if (!defined($mode) || ($mode ne 'edit' && $mode ne 'parmset')) {
236: my $location = "/adm/groupsort?catalogmode=groupimport&";
237: $location .= "mode=".$mode."&";
238: $location .= "acts=";
239: $catalogmodefunctions=<<"END";
240: function select_data(url) {
241: changeURL(url);
242: self.close();
243: }
244: function select_group() {
245: window.location="$location"+document.forms.fileattr.acts.value;
246: }
247: function changeURL(val) {
248: if (opener.inf) {
249: if (opener.inf.document.forms.resinfo.elements.u) {
250: opener.inf.document.forms.resinfo.elements.u.value=val;
251: }
252: }
253: }
254: END
255: } elsif ($mode eq 'edit') { # we are in 'edit' mode
256: my $location = "/adm/groupsort?catalogmode=interactive&";
257: $location .= "form=$form&element=$element&mode=edit&acts=";
258: $catalogmodefunctions=<<END;
259: // mode = $mode
260: function select_data(url) {
261: var location = "/res/?launch=2&form=$form&element=$element&titleelement=$titleelement&acts=" + url;
262: window.location=location;
263: }
264: function select_group() {
265: window.location="$location"+document.forms.fileattr.acts.value;
266: }
267:
268: function changeURL(val) {
269: if (window.opener.document) {
270: window.opener.document.forms["$form"].elements["$element"].value=val;
271: } else {
272: alert("The file you selected is: "+val);
273: }
274: }
275: END
276: if (!$titleelement) {
277: $catalogmodefunctions.='function changeTitle(val) {}';
278: } else {
279: $catalogmodefunctions.=<<END;
280: function changeTitle(val) {
281: if (window.opener.document) {
282: window.opener.document.forms["$form"].elements["$titleelement"].value=val;
283: } else {
284: alert("The title of the file you selected is: "+val);
285: }
286: }
287: END
288: }
289: } elsif ($mode eq 'parmset') {
290: my $location = "/adm/groupsort?catalogmode=interactive&";
291: $location .= "form=$form&element=$element&mode=parmset&acts=";
292: $catalogmodefunctions=<<END;
293: // mode = $mode
294: function select_data(url) {
295: changeURL(url);
296: self.close();
297: }
298:
299: function select_group() {
300: window.location="$location"+document.forms.fileattr.acts.value;
301: }
302:
303: function changeURL(val) {
304: if (window.opener.document) {
305: var elementname = "$element"+"_value";
306: var checkboxname = "$element"+"_setparmval";
307: window.opener.document.forms["$form"].elements[elementname].value=val;
308: window.opener.document.forms["$form"].elements[checkboxname].checked=true;
309: } else {
310: alert("The file you selected is: "+val);
311: }
312: }
313:
314: END
315: }
316: }
317: $catalogmodefunctions.=<<END;
318: var acts='';
319: function rep_dirpath(suffix,val) {
320: eval("document.forms.dirpath"+suffix+".acts.value=val");
321: }
322: END
323: if ($ENV{'form.catalogmode'} eq 'groupimport') {
324: $catalogmodefunctions.=<<END;
325: function queue(val) {
326: if (eval("document.forms."+val+".filelink.checked")) {
327: var l=val.length;
328: var v=val.substring(4,l);
329: document.forms.fileattr.acts.value+='1a'+v+'b';
330: }
331: else {
332: var l=val.length;
333: var v=val.substring(4,l);
334: document.forms.fileattr.acts.value+='0a'+v+'b';
335: }
336: }
337: END
338: }
339:
340: # ---------------------------------------------------------------- Print Header
341: $r->print(<<ENDHEADER);
342: <html>
343: <head>
344: <title>The LearningOnline Network With CAPA Directory Browser</title>
345:
346: <script type="text/javascript">
347: $catalogmodefunctions
348: function openWindow(url, wdwName, w, h, toolbar,scrollbar,locationbar) {
349: var xpos = (screen.width-w)/2;
350: xpos = (xpos < 0) ? '0' : xpos;
351: var ypos = (screen.height-h)/2-30;
352: ypos = (ypos < 0) ? '0' : ypos;
353: var options = "width=" + w + ",height=" + h + ",screenx="+xpos+",screeny="+ypos+",";
354: options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
355: options += "menubar=no,toolbar="+toolbar+",location="+locationbar+",directories=no";
356: var newWin = window.open(url, wdwName, options);
357: newWin.focus();
358: }
359: function gothere(val) {
360: window.location=val+'?acts='+document.forms.fileattr.acts.value;
361: }
362: </script>
363:
364: </head>
365: ENDHEADER
366: my ($headerdom)=($uri=~/^\/res\/(\w+)\//);
367: $r->print(&Apache::loncommon::bodytag('Browse Resources',undef,undef,undef,
368: $headerdom));
369: # - Evaluate actions from previous page (both cumulatively and chronologically)
370: if ($ENV{'form.catalogmode'} eq 'groupimport') {
371: my $acts=$ENV{'form.acts'};
372: my @Acts=split(/b/,$acts);
373: my %ahash;
374: my %achash;
375: my $ac=0;
376: # some initial hashes for working with data
377: foreach (@Acts) {
378: my ($state,$ref)=split(/a/);
379: $ahash{$ref}=$state;
380: $achash{$ref}=$ac;
381: $ac++;
382: }
383: # sorting through the actions and changing the global database hash
384: foreach (sort {$achash{$a}<=>$achash{$b}} (keys %ahash)) {
385: my $key=$_;
386: if ($ahash{$key} eq '1') {
387: $hash{'store_'.$hash{'pre_'.$key.'_link'}}=
388: $hash{'pre_'.$key.'_title'};
389: $hash{'storectr_'.$hash{'pre_'.$key.'_link'}}=
390: $hash{'storectr'}+0;
391: $hash{'storectr'}++;
392: }
393: if ($ahash{$key} eq '0') {
394: if ($hash{'store_'.$hash{'pre_'.$key.'_link'}}) {
395: delete $hash{'store_'.$hash{'pre_'.$key.'_link'}};
396: }
397: }
398: }
399: # deleting the previously cached listing
400: foreach (keys %hash) {
401: if ($_ =~ /^pre_/ && $_ =~/link$/) {
402: my $key = $_;
403: $key =~ s/^pre_//;
404: $key =~ s/_[^_]*$//;
405: delete $hash{'pre_'.$key.'_title'};
406: delete $hash{'pre_'.$key.'_link'};
407: }
408: }
409: }
410:
411: # ---------------------------------- get state of file attributes to be showing
412: if ($ENV{'form.attrs'}) {
413: for (my $i=0; $i<=11; $i++) {
414: delete $hash{'display_attrs_'.$i};
415: if ($ENV{'form.attr'.$i} == 1) {
416: $attrchk[$i] = 'checked';
417: $hash{'display_attrs_'.$i} = 1;
418: }
419: }
420: } else {
421: for (my $i=0; $i<=11; $i++) {
422: $attrchk[$i] = 'checked' if $hash{'display_attrs_'.$i} == 1;
423: }
424: }
425:
426: # ------------------------------- output state of file attributes to be showing
427: # All versions has to the last item
428: # since it does not take an extra col
429: my %lt=&Apache::lonlocal::texthash(
430: 'ti' => 'Title',
431: 'si' => 'Size',
432: 'la' => 'Last access',
433: 'lm' => 'Last modified',
434: 'st' => 'Statistics',
435: 'au' => 'Author',
436: 'kw' => 'Keywords',
437: 'ln' => 'Language',
438: 'sa' => 'Source Available',
439: 'sr' => 'Show resource',
440: 'li' => 'Linked/Related Resources',
441: 'av' => 'All versions',
442: 'ud' => 'Update Display'
443: );
444: $r->print(<<END);
445: <form method="post" name="fileattr" action="$uri"
446: enctype="application/x-www-form-urlencoded">
447: <input type="checkbox" name="attr9" value="1" $attrchk[9] onClick="this.form.submit();" /> $lt{'av'}
448: <table border="0">
449: <tr>
450: <td><input type="checkbox" name="attr0" value="1" $attrchk[0] onClick="this.form.submit();" /> $lt{'ti'}</td>
451: <td><input type="checkbox" name="attr4" value="1" $attrchk[4] onClick="this.form.submit();" /> $lt{'au'}</td>
452: <td><input type="checkbox" name="attr5" value="1" $attrchk[5] onClick="this.form.submit();" /> $lt{'kw'}</td>
453: <td><input type="checkbox" name="attr6" value="1" $attrchk[6] onClick="this.form.submit();" /> $lt{'ln'}</td>
454: </tr>
455: <tr>
456: <td><input type="checkbox" name="attr1" value="1" $attrchk[1] onClick="this.form.submit();" /> $lt{'si'}</td>
457: <td><input type="checkbox" name="attr2" value="1" $attrchk[2] onClick="this.form.submit();" /> $lt{'la'}</td>
458: <td><input type="checkbox" name="attr3" value="1" $attrchk[3] onClick="this.form.submit();" /> $lt{'lm'}</td>
459: <td><input type="checkbox" name="attr10" value="1" $attrchk[10] onClick="this.form.submit();" /> $lt{'sa'}</td>
460: </tr>
461: <tr>
462: <td><input type="checkbox" name="attr8" value="1" $attrchk[8] onClick="this.form.submit();" /> $lt{'st'}</td>
463: <td><input type="checkbox" name="attr11" value="1" $attrchk[11] onClick="this.form.submit();" /> $lt{'li'}</td>
464: <td><input type="checkbox" name="attr7" value="1" $attrchk[7] onClick="this.form.submit();" /> $lt{'sr'}</td>
465: <td> </td>
466: </tr>
467: </table>
468: <input type="hidden" name="attrs" value="1" />
469: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
470: <input type="hidden" name="acts" value="" />
471: $closebutton $groupimportbutton
472: END
473: # -------------- Filter out sequence containment in crumbs and "recent folders"
474: my $storeuri=$uri;
475: $storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
476: $storeuri=~s/\/+/\//g;
477: # ---------------------------------------------------------------- Bread crumbs
478: $r->print(&Apache::lonhtmlcommon::crumbs($storeuri,'','',
479: (($ENV{'form.catalogmode'} eq 'groupimport')?
480: 'document.forms.fileattr':'')).
481: &Apache::lonhtmlcommon::select_recent('residx','resrecent',
482: 'this.form.action=this.form.resrecent.options[this.form.resrecent.selectedIndex].value;this.form.submit();'));
483: # -------------------------------------------------------- Resource Home Button
484: my $reshome=$ENV{'course.'.$ENV{'request.course.id'}.'.reshome'};
485: if ($reshome) {
486: $r->print("<font size='+2'><a href='");
487: if ($ENV{'form.catalogmode'} eq 'groupimport') {
488: $r->print('javascript:document.forms.fileattr.action="'.$reshome.'";document.forms.fileattr.submit();');
489: } else {
490: $r->print($reshome);
491: }
492: $r->print("'>".&mt('Home').'</a></font>');
493: }
494: $r->print('</form>');
495: # ------------------------------------------------------ Remember where we were
496: &Apache::loncommon::storeresurl($storeuri);
497: &Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
498: # ----------------- output starting row to the indexed file/directory hierarchy
499: my $titleclr="#ddffff";
500: # $r->print(&initdebug());
501: # $r->print(&writedebug("Omit:@Omit")) if (@Omit);
502: # $r->print(&writedebug("Only:@Only")) if (@Only);
503: $r->print("<table width='100\%' border=0><tr><td bgcolor=#777777>\n");
504: $r->print("<table width='100\%' border=0><tr bgcolor=$titleclr>\n");
505: $r->print("<td $colspan><b>".&mt('Name')."</b></td>\n");
506: $r->print("<td><b>".&mt('Title')."</b></td>\n")
507: if ($hash{'display_attrs_0'} == 1);
508: $r->print("<td align=right><b>".&mt("Size")." (".&mt("bytes").") ".
509: "</b></td>\n") if ($hash{'display_attrs_1'} == 1);
510: $r->print("<td><b>".&mt("Last accessed")."</b></td>\n")
511: if ($hash{'display_attrs_2'} == 1);
512: $r->print("<td><b>".&mt("Last modified")."</b></td>\n")
513: if ($hash{'display_attrs_3'} == 1);
514: $r->print("<td><b>".&mt("Author(s)")."</b></td>\n")
515: if ($hash{'display_attrs_4'} == 1);
516: $r->print("<td><b>".&mt("Keywords")."</b></td>\n")
517: if ($hash{'display_attrs_5'} == 1);
518: $r->print("<td><b>".&mt("Language")."</b></td>\n")
519: if ($hash{'display_attrs_6'} == 1);
520: $r->print("<td><b>".&mt("Usage Statistics")." <br />(".
521: &mt("Courses/Network Hits").")</b></td>\n")
522: if ($hash{'display_attrs_8'} == 1);
523: $r->print("<td><b>".&mt("Source Available")."</b></td>\n")
524: if ($hash{'display_attrs_10'} == 1);
525: $r->print("<td><b>".&mt("Linked/Related Resources")."</b></td>\n")
526: if ($hash{'display_attrs_11'} == 1);
527: $r->print("<td><b>".&mt("Resource")."</b></td>\n")
528: if ($hash{'display_attrs_7'} == 1);
529: $r->print('</tr>');
530:
531: # ----------------- read in what directories have previously been set to "open"
532: foreach (keys %hash) {
533: if ($_ =~ /^diropen_status_/) {
534: my $key = $_;
535: $key =~ s/^diropen_status_//;
536: $dirs{$key} = $hash{$_};
537: }
538: }
539:
540: if ($ENV{'form.openuri'}) { # take care of review and refresh options
541: my $uri=$ENV{'form.openuri'};
542: if (exists($hash{'diropen_status_'.$uri})) {
543: my $cursta = $hash{'diropen_status_'.$uri};
544: $dirs{$uri} = 'open';
545: $hash{'diropen_status_'.$uri} = 'open';
546: if ($cursta eq 'open') {
547: $dirs{$uri} = 'closed';
548: $hash{'diropen_status_'.$uri} = 'closed';
549: }
550: } else {
551: $hash{'diropen_status_'.$uri} = 'open';
552: $dirs{$uri} = 'open';
553: }
554: }
555:
556: my $toplevel;
557: my $indent = 0;
558: $uri = $uri.'/' if $uri !~ /.*\/$/;
559:
560: if ($ENV{'form.dirPointer'} ne 'on') {
561: $hash{'top.level'} = $uri;
562: $toplevel = $uri;
563: } else {
564: $toplevel = $hash{'top.level'};
565: }
566:
567: # -------------------------------- if not at top level, provide an uplink arrow
568: if ($toplevel ne '/res/'){
569: my (@uri_com) = split(/\//,$uri);
570: pop @uri_com;
571: my $upone = join('/',@uri_com);
572: my @list = qw (0);
573: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
574: $indent = 1;
575: }
576:
577: # -------- recursively go through all the directories and output as appropriate
578: &scanDir ($r,$toplevel,$indent,\%hash);
579:
580: # ---------------------------- embed hidden information useful for group import
581: $r->print("<form name='fnum'>");
582: $r->print("<input type='hidden' name='fnum' value='$fnum'></form>");
583:
584: # -------------------------------------------------------------- end the tables
585: $r->print('</table>');
586: $r->print('</td></tr></table>');
587:
588: # --------------------------------------------------- end the output and return
589: $r->print('</body></html>'."\n");
590: }
591: if(! $c->aborted()) {
592: # write back into the temporary file
593: my %dbfile;
594: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
595: while (my($key,$value) = each(%hash)) {
596: $dbfile{$key}=$value;
597: }
598: untie(%dbfile);
599: }
600: }
601:
602: return OK;
603: }
604:
605: # ----------------------------------------------- recursive scan of a directory
606: sub scanDir {
607: my ($r,$startdir,$indent,$hashref)=@_;
608: my $c = $r->connection();
609: my ($compuri,$curdir);
610: my $dirptr=16384;
611: my $obs;
612: $indent++;
613: my %dupdirs = %dirs;
614: my @list=&get_list($r,$startdir);
615: foreach my $line (@list) {
616: return if ($c->aborted());
617: #This is a kludge, sorry aboot this
618: my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
619: next if($strip =~ /.*\.meta$/ | $obs eq '1');
620: my (@fileparts) = split(/\./,$strip);
621: if ($hash{'display_attrs_9'} != 1) {
622: # if not all versions to be shown
623: if (scalar(@fileparts) >= 3) {
624: my $fext = pop @fileparts;
625: my $ov = pop @fileparts;
626: my $fname = join ('.',@fileparts,$fext);
627: next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
628: }
629: }
630:
631: if ($dom eq 'domain') {
632: # dom list has full path /res/<domain name>/ already
633: $curdir='';
634: $compuri = (split(/\&/,$line))[0];
635: } else {
636: # user, dir & file have name only, i.e., w/o path
637: $compuri = join('',$startdir,$strip,'/');
638: $curdir = $startdir;
639: }
640: my $diropen = 'closed';
641: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
642: while (my ($key,$val)= each %dupdirs) {
643: if ($key eq $compuri and $val eq "open") {
644: $diropen = "opened";
645: delete($dupdirs{$key});
646: delete($dirs{$key});
647: }
648: }
649: }
650: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
651: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
652: }
653: $indent--;
654: }
655:
656: # --------------- get complete matched list based on the uri (returns an array)
657: sub get_list {
658: my ($r,$uri)=@_;
659: my @list=();
660: (my $luri = $uri) =~ s/\//_/g;
661: if ($ENV{'form.updatedisplay'}) {
662: foreach (keys %hash) {
663: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
664: }
665: }
666:
667: if ($hash{'dirlist_files_'.$luri}) {
668: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
669: } elsif ($uri=~/\.(page|sequence)\/$/) {
670: # is a page or a sequence
671: $uri=~s/\/$//;
672: $uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
673: $uri=~s/\/+/\//g;
674: foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
675: my @ratpart=split(/\:/,$_);
676: push @list,$ratpart[1];
677: }
678: $hash{'dirlist_files_'.$luri} = join("\n",@list);
679: } else {
680: # is really a directory
681: @list = &Apache::lonnet::dirlist($uri);
682: $hash{'dirlist_files_'.$luri} = join("\n",@list);
683: }
684: return @list=&match_ext($r,@list);
685: }
686:
687: sub dynmetaread {
688: my $uri=shift;
689: if (($hash{'display_attrs_8'}==1) || ($hash{'display_attrs_11'}==1)) {
690: # We don't want the filename
691: $uri=~s/\/[^\/]+$//;
692: # Did we already see this?
693: my $builddir=$uri;
694: while ($builddir) {
695: if ($dynread{$builddir}) {
696: return 0;
697: }
698: $builddir=~s/\/[^\/]+$//;
699: }
700: # Actually get the data
701: %dynhash=
702: (%dynhash,&Apache::lonmeta::get_dynamic_metadata_from_sql($uri));
703: # Remember that we got it
704: $dynread{$uri}=1;
705: }
706: }
707:
708: sub initdebug {
709: return <<ENDJS;
710: <script>
711: var debugging = true;
712: if (debugging) {
713: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
714: }
715:
716: function output(text) {
717: if (debugging) {
718: debuggingWindow.document.writeln(text);
719: }
720: }
721: output("<html><head><title>Debugging Window</title></head><body><pre>");
722: </script>
723: ENDJS
724: }
725:
726: sub writedebug {
727: my $text = shift;
728: return "<script>output('$text');</script>";
729: }
730:
731: # -------------------- filters out files based on extensions (returns an array)
732: sub match_ext {
733: my ($r,@packlist)=@_;
734: my @trimlist;
735: my $nextline;
736: my @fileext;
737: my $dirptr=16384;
738:
739: foreach my $line (@packlist) {
740: chomp $line;
741: $line =~ s/^\/home\/httpd\/html//;
742: my @unpackline = split (/\&/,$line);
743: next if ($unpackline[0] eq '.');
744: next if ($unpackline[0] eq '..');
745: my @filecom = split (/\./,$unpackline[0]);
746: my $fext = pop(@filecom);
747: my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
748: if ($fnptr == 0 and $unpackline[3] ne "") {
749: my $embstyle = &Apache::loncommon::fileembstyle($fext);
750: push @trimlist,$line if (defined($embstyle) &&
751: ($embstyle ne 'hdn' or $fext eq 'meta'));
752: } else {
753: push @trimlist,$line;
754: }
755: }
756: @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
757: return @trimlist;
758: }
759:
760: # ------------------------------- displays one line in appropriate table format
761: sub display_line {
762: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
763: my (@pathfn, $fndir);
764: # there could be relative paths (files actually belonging into this directory)
765: # or absolute paths (for example, from sequences)
766: my $absolute;
767: my $pathprefix;
768: if ($line=~m|^/res/| && $startdir ne '') {
769: $absolute=1;
770: $pathprefix='';
771: } else {
772: $absolute=0;
773: $pathprefix=$startdir;
774: }
775: my $dirptr=16384;
776: my $fileclr="#ffffe6";
777: my $iconpath= $r->dir_config('lonIconsURL') . '/';
778:
779: my @filecom = split (/\&/,$line);
780: my @pathcom = split (/\//,$filecom[0]);
781: my $listname = $pathcom[scalar(@pathcom)-1];
782: my $fnptr = $filecom[3]&$dirptr;
783: my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
784: $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
785:
786: my $tabtag='</td>';
787: my $i=0;
788: while ($i<=11) {
789: $tabtag=join('',$tabtag,"<td> </td>")
790: if $hash{'display_attrs_'.$i} == 1;
791: $i++;
792: }
793: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
794:
795: # display uplink arrow
796: if ($filecom[1] eq 'viewOneUp') {
797: my $updir=$startdir;
798: # -------------- Filter out sequence containment in crumbs and "recent folders"
799: $updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
800: $updir=~s/\/+/\//g;
801:
802: $r->print("<tr valign='$valign' bgcolor=$fileclr>$extrafield");
803: $r->print("<td>\n");
804: $r->print ('<form method="post" name="dirpathUP" action="'.$updir.
805: '/" '.
806: 'onSubmit="return rep_dirpath(\'UP\','.
807: 'document.forms.fileattr.acts.value)" '.
808: 'enctype="application/x-www-form-urlencoded"'.
809: '>'."\n");
810: $r->print ('<input type=hidden name=openuri value="'.
811: $startdir.'">'."\n");
812: $r->print ('<input type="hidden" name="acts" value="">'."\n");
813: $r->print ('<input src="'.$iconpath.'arrow_up.gif"');
814: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
815: "\n");
816: $r->print(&mt("Up")." $tabtag</tr></form>\n");
817: return OK;
818: }
819: # Do we have permission to look at this?
820:
821: if($filecom[15] ne '1') { return OK if (!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])); }
822:
823: # make absolute links appear on different background
824: if ($absolute) { $fileclr='#ccdd99'; }
825:
826: # display domain
827: if ($filecom[1] eq 'domain') {
828: $r->print ('<input type="hidden" name="dirPointer" value="on">'."\n")
829: if ($ENV{'form.dirPointer'} eq "on");
830: $r->print("<tr valign='$valign' bgcolor=$fileclr>$extrafield");
831: $r->print("<td>");
832: &begin_form ($r,$filecom[0]);
833: my $anchor = $filecom[0];
834: $anchor =~ s/\///g;
835: $r->print ('<a name="'.$anchor.'">');
836: $r->print ('<input type="hidden" name="acts" value="">');
837: $r->print ('<input src="'.$iconpath.'folder_pointer_'.
838: $diropen.'.gif"');
839: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
840: "\n");
841: $r->print ('<a href="javascript:gothere(\''.$filecom[0].
842: '\')"><img src="'.$iconpath.'server.gif"');
843: $r->print (' border="0" /></a>'."\n");
844: $r->print (&mt("Domain")." - $listname ");
845: if ($Apache::lonnet::domaindescription{$listname}) {
846: $r->print("(".$Apache::lonnet::domaindescription{$listname}.
847: ")");
848: }
849: $r->print (" $tabtag</tr></form>\n");
850: return OK;
851:
852: # display user directory
853: }
854: if ($filecom[1] eq 'user') {
855: $r->print("<tr valign=$valign bgcolor=$fileclr>$extrafield");
856: $r->print("<td nowrap>\n");
857: my $curdir = $startdir.$filecom[0].'/';
858: my $anchor = $curdir;
859: $anchor =~ s/\///g;
860: &begin_form ($r,$curdir);
861: $r->print ('<a name="'.$anchor.'"><img src="'.$iconpath.
862: 'whitespace1.gif" border="0" />'."\n");
863: $r->print ('<input type="hidden" name="acts" value="">');
864: $r->print ('<input src="'.$iconpath.'folder_pointer_'.$diropen.
865: '.gif"');
866: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
867: "\n");
868: $r->print ('<a href="javascript:gothere(\''.$curdir.'\')"><img src='.
869: $iconpath.'quill.gif border="0" name="'.$msg.
870: '" height="22" /></a>');
871: my $domain=(split(m|/|,$startdir))[2];
872: my $plainname=&Apache::loncommon::plainname($listname,$domain);
873: $r->print ($listname);
874: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
875: $r->print ($tabtag.'</tr></form>'."\n");
876: return OK;
877: }
878:
879: # display file
880: if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
881: my $filelink = $pathprefix.$filecom[0];
882: my @file_ext = split (/\./,$listname);
883: my $curfext = $file_ext[-1];
884: if (@Omit) {
885: foreach (@Omit) { return OK if ($curfext eq $_); }
886: }
887: if (@Only) {
888: my $skip = 1;
889: foreach (@Only) { $skip = 0 if ($curfext eq $_); }
890: return OK if ($skip > 0);
891: }
892: # Set the icon for the file
893: my $iconname = &Apache::loncommon::icon($listname);
894: $r->print("<tr valign='$valign' bgcolor=$fileclr><td nowrap='1' align='top'>");
895:
896: if ($ENV{'form.catalogmode'} eq 'interactive') {
897: $r->print("<a href=\"javascript:select_data(\'",
898: $filelink,"')\">");
899: $r->print("<img src='",$iconpath,"select.gif' border='0' /></a>".
900: "\n");
901: $r->print("</td><td nowrap>");
902: } elsif ($ENV{'form.catalogmode'} eq 'groupimport') {
903: $r->print("<form name='form$fnum'>\n");
904: $r->print("<input type='checkbox' name='filelink"."' ".
905: "value='$filelink' onClick='".
906: "javascript:queue(\"form$fnum\")' ");
907: if ($hash{'store_'.$filelink}) {
908: $r->print("checked");
909: }
910: $r->print(">\n");
911: $r->print("</form>\n");
912: $r->print("</td><td nowrap>");
913: $hash{"pre_${fnum}_link"}=$filelink;
914: $fnum++;
915: }
916: # Form to open or close sequences
917: if ($filelink=~/\.(page|sequence)$/) {
918: my $curdir = $startdir.$filecom[0].'/';
919: my $anchor = $curdir;
920: $anchor =~ s/\///g;
921: &begin_form($r,$curdir);
922: $indent--;
923: }
924: # General indentation
925: if ($indent > 0 and $indent < 11) {
926: $r->print("<img src=",$iconpath,"whitespace",$indent,
927: ".gif border='0' />\n");
928: } elsif ($indent >0) {
929: my $ten = int($indent/10.);
930: my $rem = $indent%10.0;
931: my $count = 0;
932: while ($count < $ten) {
933: $r->print("<img src=",$iconpath,
934: "whitespace10.gif border='0' />\n");
935: $count++;
936: }
937: $r->print("<img src=",$iconpath,"whitespace",$rem,
938: ".gif border='0' />\n") if $rem > 0;
939: }
940: # Sequence open/close icon
941: if ($filelink=~/\.(page|sequence)$/) {
942: my $curdir = $startdir.$filecom[0].'/';
943: my $anchor = $curdir;
944: $anchor =~ s/\///g;
945: $r->print ('<input type="hidden" name="acts" value="">');
946: $r->print ('<a name="'.$anchor.'"><input src="'.$iconpath.
947: 'folder_pointer_'.$diropen.'.gif"');
948: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
949: "\n");
950: }
951: # Filetype icons
952: $r->print("<img src='$iconname' border='0' />\n");
953: # Close form to open/close sequence
954: if ($filelink=~/\.(page|sequence)$/) {
955: $r->print('</form>');
956: }
957: $r->print (" <a href=\"javascript:openWindow('".$filelink.
958: "', 'previewfile', '450', '500', 'no', 'yes','yes')\";".
959: " TARGET=_self>$listname</a> ");
960:
961: $r->print (" (<a href=\"javascript:openWindow('".$filelink.
962: ".meta', 'metadatafile', '500', '550', 'no', 'yes','no')\"; ".
963: "TARGET=_self>metadata</a>) ");
964: $r->print("</td>\n");
965: if ($hash{'display_attrs_0'} == 1) {
966: my $title = &Apache::lonnet::gettitle($filelink,'title');
967: $r->print('<td> '.($title eq '' ? ' ' : $title).
968: ' </td>'."\n");
969: }
970: $r->print('<td align=right> ',
971: $filecom[8]," </td>\n")
972: if $hash{'display_attrs_1'} == 1;
973: $r->print('<td> '.
974: (localtime($filecom[9]))." </td>\n")
975: if $hash{'display_attrs_2'} == 1;
976: $r->print('<td> '.
977: (localtime($filecom[10]))." </td>\n")
978: if $hash{'display_attrs_3'} == 1;
979:
980: if ($hash{'display_attrs_4'} == 1) {
981: my $author = &Apache::lonnet::metadata($filelink,'author');
982: $r->print('<td> '.($author eq '' ? ' ' : $author).
983: " </td>\n");
984: }
985: if ($hash{'display_attrs_5'} == 1) {
986: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
987: # $keywords = ' ' if (!$keywords);
988: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
989: " </td>\n");
990: }
991: #'
992:
993: if ($hash{'display_attrs_6'} == 1) {
994: my $lang = &Apache::lonnet::metadata($filelink,'language');
995: $lang = &Apache::loncommon::languagedescription($lang);
996: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
997: " </td>\n");
998: }
999: if ($hash{'display_attrs_8'} == 1) {
1000: # statistics
1001: &dynmetaread($filelink);
1002: $r->print("<td>");
1003: &dynmetaprint($r,$filelink,'count');
1004: &dynmetaprint($r,$filelink,'course');
1005: &dynmetaprint($r,$filelink,'stdno');
1006: &dynmetaprint($r,$filelink,'avetries');
1007: &dynmetaprint($r,$filelink,'difficulty');
1008: &dynmetaprint($r,$filelink,'disc');
1009: &dynmetaprint($r,$filelink,'clear');
1010: &dynmetaprint($r,$filelink,'technical');
1011: &dynmetaprint($r,$filelink,'correct');
1012: &dynmetaprint($r,$filelink,'helpful');
1013: &dynmetaprint($r,$filelink,'depth');
1014: $r->print(" </td>\n");
1015:
1016: }
1017: if ($hash{'display_attrs_10'} == 1) {
1018: my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
1019: if($source eq 'open') {
1020: my $sourcelink = &Apache::lonsource::make_link($filelink);
1021: $r->print('<td>'."<a href=\"javascript:openWindow('".$sourcelink.
1022: "', 'previewsource', '700', '700', 'no', 'yes','yes')\";".
1023: " TARGET=_self>Yes</a> "."</td>\n");
1024: } else { #A cuddled else. :P
1025: $r->print("<td> </td>\n");
1026: }
1027: }
1028: if ($hash{'display_attrs_11'} == 1) {
1029: # links
1030: &dynmetaread($filelink);
1031: $r->print('<td>');
1032: &dynmetaprint($r,$filelink,'goto_list');
1033: &dynmetaprint($r,$filelink,'comefrom_list');
1034: &dynmetaprint($r,$filelink,'sequsage_list');
1035: &dynmetaprint($r,$filelink,'dependencies');
1036: $r->print('</td>');
1037: }
1038: if ($hash{'display_attrs_7'} == 1) {
1039: # Show resource
1040: my $output='';
1041: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
1042: if ($embstyle eq 'ssi') {
1043: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
1044: '.tmp';
1045: if ((!$ENV{'form.updatedisplay'}) &&
1046: (-e $cache)) {
1047: open(FH,$cache);
1048: $output=join("\n",<FH>);
1049: close(FH);
1050: } else {
1051: $output=&Apache::lonnet::ssi_body($filelink);
1052: open(FH,">$cache");
1053: print FH $output;
1054: close(FH);
1055: }
1056: $output='<font size="-2">'.$output.'</font>';
1057: } elsif ($embstyle eq 'img') {
1058: $output='<img src="'.$filelink.'" />';
1059: } elsif ($filelink=~/^\/res\/(\w+)\/(\w+)\//) {
1060: $output='<img src="http://'.
1061: $Apache::lonnet::hostname{&Apache::lonnet::homeserver($2,$1)}.
1062: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1063: }
1064: $r->print('<td> '.($output eq '' ? ' ':$output).
1065: " </td>\n");
1066: }
1067: $r->print("</tr>\n");
1068: }
1069:
1070: # -- display directory
1071: if ($fnptr == $dirptr) {
1072: my $curdir = $startdir.$filecom[0].'/';
1073: my $anchor = $curdir;
1074: $anchor =~ s/\///g;
1075: $r->print("<tr bgcolor=$fileclr>$extrafield<td valign=$valign>");
1076: &begin_form ($r,$curdir);
1077: my $indentm1 = $indent-1;
1078: if ($indentm1 < 11 and $indentm1 > 0) {
1079: $r->print("<img src=",$iconpath,"whitespace",$indentm1,
1080: ".gif border='0' />\n");
1081: } else {
1082: my $ten = int($indentm1/10.);
1083: my $rem = $indentm1%10.0;
1084: my $count = 0;
1085: while ($count < $ten) {
1086: $r->print ("<img src=",$iconpath
1087: ,"whitespace10.gif border='0' />\n");
1088: $count++;
1089: }
1090: $r->print ("<img src=",$iconpath,"whitespace",$rem,
1091: ".gif border='0' />\n") if $rem > 0;
1092: }
1093: $r->print ('<input type="hidden" name="acts" value="">');
1094: $r->print ('<a name="'.$anchor.'"><input src="'.$iconpath.
1095: 'folder_pointer_'.$diropen.'.gif"');
1096: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
1097: "\n");
1098: $r->print ('<a href="javascript:gothere(\''.$curdir.'\')"><img src="'.
1099: $iconpath.'folder_'.$diropen.'.gif" border="0" /></a>'.
1100: "\n");
1101: $r->print ("$listname</td>\n");
1102: # Attributes
1103: my $filelink = $startdir.$filecom[0].'/default';
1104:
1105: if ($hash{'display_attrs_0'} == 1) {
1106: my $title = &Apache::lonnet::gettitle($filelink,'title');
1107: $r->print('<td> '.($title eq '' ? ' ' : $title).
1108: ' </td>'."\n");
1109: }
1110: $r->print('<td align=right> ',
1111: $filecom[8]," </td>\n")
1112: if $hash{'display_attrs_1'} == 1;
1113: $r->print('<td> '.
1114: (localtime($filecom[9]))." </td>\n")
1115: if $hash{'display_attrs_2'} == 1;
1116: $r->print('<td> '.
1117: (localtime($filecom[10]))." </td>\n")
1118: if $hash{'display_attrs_3'} == 1;
1119:
1120: if ($hash{'display_attrs_4'} == 1) {
1121: my $author = &Apache::lonnet::metadata($filelink,'author');
1122: $r->print('<td> '.($author eq '' ? ' ' : $author).
1123: " </td>\n");
1124: }
1125: if ($hash{'display_attrs_5'} == 1) {
1126: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1127: # $keywords = ' ' if (!$keywords);
1128: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1129: " </td>\n");
1130: }
1131: if ($hash{'display_attrs_6'} == 1) {
1132: my $lang = &Apache::lonnet::metadata($filelink,'language');
1133: $lang = &Apache::loncommon::languagedescription($lang);
1134: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1135: " </td>\n");
1136: }
1137: if ($hash{'display_attrs_8'} == 1) {
1138: $r->print('<td> </td>');
1139: }
1140: if ($hash{'display_attrs_10'} == 1) {
1141: $r->print('<td> </td>');
1142: }
1143: if ($hash{'display_attrs_11'} == 1) {
1144: $r->print('<td> </td>');
1145: }
1146: if ($hash{'display_attrs_7'} == 1) {
1147: $r->print('<td> </td>');
1148: }
1149: $r->print('</form></tr>');
1150: }
1151:
1152: }
1153:
1154: sub dynmetaprint {
1155: my ($r,$filelink,$item)=@_;
1156: if ($dynhash{$filelink}->{$item}) {
1157: $r->print("\n<br />".$fieldnames{$item}.': '.
1158: &Apache::lonmeta::prettyprint($item,
1159: $dynhash{$filelink}->{$item},
1160: (($ENV{'form.catalogmode'} ne 'groupimport')?'preview':''),
1161: '',
1162: (($ENV{'form.catalogmode'} eq 'groupimport')?'document.forms.fileattr':''),1));
1163: }
1164: }
1165:
1166: # ------------------- prints the beginning of a form for directory or file link
1167: sub begin_form {
1168: my ($r,$uri) = @_;
1169: my $anchor = $uri;
1170: $anchor =~ s/\///g;
1171: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1172: '#'.$anchor.
1173: '" onSubmit="return rep_dirpath(\''.$dnum.'\''.
1174: ',document.forms.fileattr.acts.value)" '.
1175: 'enctype="application/x-www-form-urlencoded">'."\n");
1176: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'">'.
1177: "\n");
1178: $r->print ('<input type="hidden" name="dirPointer" value="on">'."\n");
1179: $dnum++;
1180: }
1181:
1182: # --------- settings whenever the user causes the indexer window to be launched
1183: sub start_fresh_session {
1184: delete $hash{'form.catalogmode'};
1185: delete $hash{'form.mode'};
1186: delete $hash{'form.form'};
1187: delete $hash{'form.element'};
1188: delete $hash{'form.omit'};
1189: delete $hash{'form.only'};
1190: foreach (keys %hash) {
1191: delete $hash{$_} if (/^(pre_|store)/);
1192: }
1193: }
1194:
1195: # ------------------------------------------------------------------- setvalues
1196: sub setvalues {
1197: # setvalues is used in registerurl to synchronize the database
1198: # hash and environment hashes
1199: my ($H1,$h1key,$H2,$h2key) =@_;
1200: #
1201: if (exists $H2->{$h2key}) {
1202: $H1->{$h1key} = $H2->{$h2key};
1203: } elsif (exists $H1->{$h1key}) {
1204: $H2->{$h2key} = $H1->{$h1key};
1205: }
1206: }
1207:
1208: 1;
1209:
1210: sub cleanup {
1211: if (tied(%hash)){
1212: &Apache::lonnet::logthis('Cleanup indexer: hash');
1213: }
1214: }
1215:
1216: =head1 NAME
1217:
1218: Apache::lonindexer - mod_perl module for cross server filesystem browsing
1219:
1220: =head1 SYNOPSIS
1221:
1222: Invoked by /etc/httpd/conf/srm.conf:
1223:
1224: <LocationMatch "^/res.*/$">
1225: SetHandler perl-script
1226: PerlHandler Apache::lonindexer
1227: </LocationMatch>
1228:
1229: =head1 INTRODUCTION
1230:
1231: This module enables a scheme of browsing across a cross server.
1232:
1233: This is part of the LearningOnline Network with CAPA project
1234: described at http://www.lon-capa.org.
1235:
1236: =head1 BEGIN SUBROUTINE
1237:
1238: This routine is only run once after compilation.
1239:
1240: =over 4
1241:
1242: =item *
1243:
1244: Initializes %language hash table.
1245:
1246: =back
1247:
1248: =head1 HANDLER SUBROUTINE
1249:
1250: This routine is called by Apache and mod_perl.
1251:
1252: =over 4
1253:
1254: =item *
1255:
1256: read in machine configuration variables
1257:
1258: =item *
1259:
1260: see if called from an interactive mode
1261:
1262: =item *
1263:
1264: refresh environment with user database values (in %hash)
1265:
1266: =item *
1267:
1268: define extra fields and buttons in case of special mode
1269:
1270: =item *
1271:
1272: set catalogmodefunctions to have extra needed javascript functionality
1273:
1274: =item *
1275:
1276: print header
1277:
1278: =item *
1279:
1280: evaluate actions from previous page (both cumulatively and chronologically)
1281:
1282: =item *
1283:
1284: output title
1285:
1286: =item *
1287:
1288: get state of file attributes to be showing
1289:
1290: =item *
1291:
1292: output state of file attributes to be showing
1293:
1294: =item *
1295:
1296: output starting row to the indexed file/directory hierarchy
1297:
1298: =item *
1299:
1300: read in what directories have previously been set to "open"
1301:
1302: =item *
1303:
1304: if not at top level, provide an uplink arrow
1305:
1306: =item *
1307:
1308: recursively go through all the directories and output as appropriate
1309:
1310: =item *
1311:
1312: information useful for group import
1313:
1314: =item *
1315:
1316: end the tables
1317:
1318: =item *
1319:
1320: end the output and return
1321:
1322: =back
1323:
1324: =head1 OTHER SUBROUTINES
1325:
1326: =over 4
1327:
1328: =item *
1329:
1330: scanDir - recursive scan of a directory
1331:
1332: =item *
1333:
1334: get_list - get complete matched list based on the uri (returns an array)
1335:
1336: =item *
1337:
1338: match_ext - filters out files based on extensions (returns an array)
1339:
1340: =item *
1341:
1342: display_line - displays one line in appropriate table format
1343:
1344: =item *
1345:
1346: begin_form - prints the beginning of a form for directory or file link
1347:
1348: =item *
1349:
1350: start_fresh_session - settings whenever the user causes the indexer window
1351: to be launched
1352:
1353: =back
1354:
1355: =cut
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to lonindexer.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / interface