1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.113 2004/06/17 18:22:13 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 %fieldnames; # Metadata fieldnames
64: # ----- Values which are set by the handler subroutine and are accessible to
65: # ----- other methods.
66: my $extrafield; # default extra table cell
67: my $fnum; # file counter
68: my $dnum; # directory counter
69:
70: # ----- Used to include or exclude files with certain extensions.
71: my @Only = ();
72: my @Omit = ();
73:
74:
75: # ----------------------------- Handling routine called via Apache and mod_perl
76: sub handler {
77: my $r = shift;
78: my $c = $r->connection();
79: &Apache::loncommon::content_type($r,'text/html');
80: &Apache::loncommon::no_cache($r);
81: $r->send_http_header;
82: return OK if $r->header_only;
83: $fnum=0;
84: $dnum=0;
85:
86: # Deal with stupid global variables (is there a way around making
87: # these global to this package? It is just so wrong....)
88: undef (@Only);
89: undef (@Omit);
90: %fieldnames=&Apache::lonmeta::fieldnames();
91:
92: # ------------------------------------- read in machine configuration variables
93: my $iconpath= $r->dir_config('lonIconsURL') . "/";
94: my $domain = $r->dir_config('lonDefDomain');
95: my $role = $r->dir_config('lonRole');
96: my $loadlim = $r->dir_config('lonLoadLim');
97: my $servadm = $r->dir_config('lonAdmEMail');
98: my $sysadm = $r->dir_config('lonSysEMail');
99: my $lonhost = $r->dir_config('lonHostID');
100: my $tabdir = $r->dir_config('lonTabDir');
101:
102: my $fileclr='#ffffe6';
103: my $line;
104: my (@attrchk,@openpath);
105: my $uri=$r->uri;
106:
107: # -------------------------------------- see if called from an interactive mode
108: # Get the parameters from the query string
109: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
110: ['catalogmode','launch','acts','mode','form','element',
111: 'only','omit','titleelement']);
112: #-------------------------------------------------------------------
113: my $closebutton='';
114: my $groupimportbutton='';
115: my $colspan='';
116:
117: $extrafield='';
118: my $diropendb =
119: "/home/httpd/perl/tmp/$ENV{'user.domain'}_$ENV{'user.name'}_indexer.db";
120: %hash = ();
121: {
122: my %dbfile;
123: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_READER(),0640)) {
124: while(my($key,$value)=each(%dbfile)) {
125: $hash{$key}=$value;
126: }
127: untie(%dbfile);
128: }
129: }
130: {
131: if ($ENV{'form.launch'} eq '1') {
132: &start_fresh_session();
133: }
134: #Hijack lonindexer to verify a title and be close down.
135: if ($ENV{'form.launch'} eq '2') {
136: $r->content_type('text/html');
137: my $extra='';
138: if (defined($ENV{'form.titleelement'})) {
139: my $verify_title = &Apache::lonnet::gettitle($ENV{'form.acts'});
140: # &Apache::lonnet::logthis("Hrrm $ENV{'form.acts'} -- $verify_title");
141: $verify_title=~s/'/\\'/g;
142: $extra='window.opener.document.forms["'.$ENV{'form.form'}.'"].elements["'.$ENV{'form.titleelement'}.'"].value=\''.$verify_title.'\';';
143: }
144: $r->print(<<ENDSUBM);
145: <html>
146: <script type="text/javascript">
147: function load() {
148: window.opener.document.forms["$ENV{'form.form'}"].elements["$ENV{'form.element'}"].value='$ENV{'form.acts'}';
149: $extra
150: window.close();
151: }
152: </script>
153: <body onLoad=load();>
154: </body>
155: </html>
156: ENDSUBM
157: return OK;
158: }
159:
160: # -------------------- refresh environment with user database values (in %hash)
161: &setvalues(\%hash,'form.catalogmode',\%ENV,'form.catalogmode' );
162:
163: # --------------------- define extra fields and buttons in case of special mode
164: if ($ENV{'form.catalogmode'} eq 'interactive') {
165: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
166: '<a name="$anchor"><img src="'.$iconpath.'whitespace1.gif"'.
167: ' border="0" /></td>';
168: $colspan=" colspan='2' ";
169: my $cl=&mt('Close');
170: $closebutton=<<END;
171: <input type="button" name="close" value='$cl' onClick="self.close()">
172: END
173: }
174: elsif ($ENV{'form.catalogmode'} eq 'groupimport') {
175: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
176: '<a name="$anchor"><img src="'.$iconpath.'whitespace1.gif"'.
177: ' border="0" /></td>';
178: $colspan=" colspan='2' ";
179: my $cl=&mt('Close');
180: my $gi=&mt('Group Import');
181: $closebutton=<<END;
182: <input type="button" name="close" value='$cl' onClick="self.close()">
183: END
184: $groupimportbutton=<<END;
185: <input type="button" name="groupimport" value='$gi'
186: onClick="javascript:select_group()">
187: END
188: }
189: # Additions made by Matthew to make the browser a little easier to deal
190: # with in the future.
191: #
192: # $mode (at this time) indicates if we are in edit mode.
193: # $form is the name of the form that the URL is placed when the
194: # selection is made.
195: # $element is the name of the element in $formname which receives
196: # the URL.
197: #&Apache::lonxml::debug('Checking mode, form, element');
198: &setvalues(\%hash,'form.mode' ,\%ENV,'form.mode' );
199: &setvalues(\%hash,'form.form' ,\%ENV,'form.form' );
200: &setvalues(\%hash,'form.element' ,\%ENV,'form.element');
201: &setvalues(\%hash,'form.titleelement',\%ENV,'form.titleelement');
202: &setvalues(\%hash,'form.only' ,\%ENV,'form.only' );
203: &setvalues(\%hash,'form.omit' ,\%ENV,'form.omit' );
204:
205: # Deal with 'omit' and 'only'
206: if (exists $ENV{'form.omit'}) {
207: @Omit = split(',',$ENV{'form.omit'});
208: }
209: if (exists $ENV{'form.only'}) {
210: @Only = split(',',$ENV{'form.only'});
211: }
212:
213: my $mode = $ENV{'form.mode'};
214: my ($form,$element,$titleelement);
215: if ($mode eq 'edit' || $mode eq 'parmset') {
216: $form = $ENV{'form.form'};
217: $element = $ENV{'form.element'};
218: $titleelement = $ENV{'form.titleelement'};
219: }
220: #&Apache::lonxml::debug("mode=$mode form=$form element=$element titleelement=$titleelement");
221: # ------ set catalogmodefunctions to have extra needed javascript functionality
222: my $catalogmodefunctions='';
223: if ($ENV{'form.catalogmode'} eq 'interactive' or
224: $ENV{'form.catalogmode'} eq 'groupimport') {
225: # The if statement below sets us up to use the old version
226: # by default (ie. if $mode is undefined). This is the easy
227: # way out. Hopefully in the future I'll find a way to get
228: # the calls dealt with in a more comprehensive manner.
229:
230: #
231: # There is now also mode "simple", which is for the simple version of the rat
232: #
233: #
234: if (!defined($mode) || ($mode ne 'edit' && $mode ne 'parmset')) {
235: my $location = "/adm/groupsort?catalogmode=groupimport&";
236: $location .= "mode=".$mode."&";
237: $location .= "acts=";
238: $catalogmodefunctions=<<"END";
239: function select_data(url) {
240: changeURL(url);
241: self.close();
242: }
243: function select_group() {
244: window.location="$location"+document.forms.fileattr.acts.value;
245: }
246: function changeURL(val) {
247: if (opener.inf) {
248: if (opener.inf.document.forms.resinfo.elements.u) {
249: opener.inf.document.forms.resinfo.elements.u.value=val;
250: }
251: }
252: }
253: END
254: } elsif ($mode eq 'edit') { # we are in 'edit' mode
255: my $location = "/adm/groupsort?catalogmode=interactive&";
256: $location .= "form=$form&element=$element&mode=edit&acts=";
257: $catalogmodefunctions=<<END;
258: // mode = $mode
259: function select_data(url) {
260: var location = "/res/?launch=2&form=$form&element=$element&titleelement=$titleelement&acts=" + url;
261: window.location=location;
262: }
263: function select_group() {
264: window.location="$location"+document.forms.fileattr.acts.value;
265: }
266:
267: function changeURL(val) {
268: if (window.opener.document) {
269: window.opener.document.forms["$form"].elements["$element"].value=val;
270: } else {
271: alert("The file you selected is: "+val);
272: }
273: }
274: END
275: if (!$titleelement) {
276: $catalogmodefunctions.='function changeTitle(val) {}';
277: } else {
278: $catalogmodefunctions.=<<END;
279: function changeTitle(val) {
280: if (window.opener.document) {
281: window.opener.document.forms["$form"].elements["$titleelement"].value=val;
282: } else {
283: alert("The title of the file you selected is: "+val);
284: }
285: }
286: END
287: }
288: } elsif ($mode eq 'parmset') {
289: my $location = "/adm/groupsort?catalogmode=interactive&";
290: $location .= "form=$form&element=$element&mode=parmset&acts=";
291: $catalogmodefunctions=<<END;
292: // mode = $mode
293: function select_data(url) {
294: changeURL(url);
295: self.close();
296: }
297:
298: function select_group() {
299: window.location="$location"+document.forms.fileattr.acts.value;
300: }
301:
302: function changeURL(val) {
303: if (window.opener.document) {
304: var elementname = "$element"+"_value";
305: var checkboxname = "$element"+"_setparmval";
306: window.opener.document.forms["$form"].elements[elementname].value=val;
307: window.opener.document.forms["$form"].elements[checkboxname].checked=true;
308: } else {
309: alert("The file you selected is: "+val);
310: }
311: }
312:
313: END
314: }
315: }
316: $catalogmodefunctions.=<<END;
317: var acts='';
318: function rep_dirpath(suffix,val) {
319: eval("document.forms.dirpath"+suffix+".acts.value=val");
320: }
321: END
322: if ($ENV{'form.catalogmode'} eq 'groupimport') {
323: $catalogmodefunctions.=<<END;
324: function queue(val) {
325: if (eval("document.forms."+val+".filelink.checked")) {
326: var l=val.length;
327: var v=val.substring(4,l);
328: document.forms.fileattr.acts.value+='1a'+v+'b';
329: }
330: else {
331: var l=val.length;
332: var v=val.substring(4,l);
333: document.forms.fileattr.acts.value+='0a'+v+'b';
334: }
335: }
336: END
337: }
338:
339: # ---------------------------------------------------------------- Print Header
340: $r->print(<<ENDHEADER);
341: <html>
342: <head>
343: <title>The LearningOnline Network With CAPA Directory Browser</title>
344:
345: <script type="text/javascript">
346: $catalogmodefunctions
347: function openWindow(url, wdwName, w, h, toolbar,scrollbar,locationbar) {
348: var xpos = (screen.width-w)/2;
349: xpos = (xpos < 0) ? '0' : xpos;
350: var ypos = (screen.height-h)/2-30;
351: ypos = (ypos < 0) ? '0' : ypos;
352: var options = "width=" + w + ",height=" + h + ",screenx="+xpos+",screeny="+ypos+",";
353: options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
354: options += "menubar=no,toolbar="+toolbar+",location="+locationbar+",directories=no";
355: var newWin = window.open(url, wdwName, options);
356: newWin.focus();
357: }
358: function gothere(val) {
359: window.location=val+'?acts='+document.forms.fileattr.acts.value;
360: }
361: </script>
362:
363: </head>
364: ENDHEADER
365: my ($headerdom)=($uri=~/^\/res\/(\w+)\//);
366: $r->print(&Apache::loncommon::bodytag('Browse Resources',undef,undef,undef,
367: $headerdom));
368: # - Evaluate actions from previous page (both cumulatively and chronologically)
369: if ($ENV{'form.catalogmode'} eq 'groupimport') {
370: my $acts=$ENV{'form.acts'};
371: my @Acts=split(/b/,$acts);
372: my %ahash;
373: my %achash;
374: my $ac=0;
375: # some initial hashes for working with data
376: foreach (@Acts) {
377: my ($state,$ref)=split(/a/);
378: $ahash{$ref}=$state;
379: $achash{$ref}=$ac;
380: $ac++;
381: }
382: # sorting through the actions and changing the global database hash
383: foreach (sort {$achash{$a}<=>$achash{$b}} (keys %ahash)) {
384: my $key=$_;
385: if ($ahash{$key} eq '1') {
386: $hash{'store_'.$hash{'pre_'.$key.'_link'}}=
387: $hash{'pre_'.$key.'_title'};
388: $hash{'storectr_'.$hash{'pre_'.$key.'_link'}}=
389: $hash{'storectr'}+0;
390: $hash{'storectr'}++;
391: }
392: if ($ahash{$key} eq '0') {
393: if ($hash{'store_'.$hash{'pre_'.$key.'_link'}}) {
394: delete $hash{'store_'.$hash{'pre_'.$key.'_link'}};
395: }
396: }
397: }
398: # deleting the previously cached listing
399: foreach (keys %hash) {
400: if ($_ =~ /^pre_/ && $_ =~/link$/) {
401: my $key = $_;
402: $key =~ s/^pre_//;
403: $key =~ s/_[^_]*$//;
404: delete $hash{'pre_'.$key.'_title'};
405: delete $hash{'pre_'.$key.'_link'};
406: }
407: }
408: }
409:
410: # ---------------------------------- get state of file attributes to be showing
411: if ($ENV{'form.attrs'}) {
412: for (my $i=0; $i<=11; $i++) {
413: delete $hash{'display_attrs_'.$i};
414: if ($ENV{'form.attr'.$i} == 1) {
415: $attrchk[$i] = 'checked';
416: $hash{'display_attrs_'.$i} = 1;
417: }
418: }
419: } else {
420: for (my $i=0; $i<=11; $i++) {
421: $attrchk[$i] = 'checked' if $hash{'display_attrs_'.$i} == 1;
422: }
423: }
424:
425: # ------------------------------- output state of file attributes to be showing
426: # All versions has to the last item
427: # since it does not take an extra col
428: my %lt=&Apache::lonlocal::texthash(
429: 'ti' => 'Title',
430: 'si' => 'Size',
431: 'la' => 'Last access',
432: 'lm' => 'Last modified',
433: 'st' => 'Statistics',
434: 'au' => 'Author',
435: 'kw' => 'Keywords',
436: 'ln' => 'Language',
437: 'sa' => 'Source Available',
438: 'sr' => 'Show resource',
439: 'li' => 'Linked/Related Resources',
440: 'av' => 'All versions',
441: 'ud' => 'Update Display'
442: );
443: my $Displayfileattributes=&mt('Display file attributes');
444: $r->print(<<END);
445: <form method="post" name="fileattr" action="$uri"
446: enctype="application/x-www-form-urlencoded">
447: <b><font color="#666666">$Displayfileattributes</font></b><br />
448: <table border=0><tr>
449: <td><input type="checkbox" name="attr0" value="1" $attrchk[0] onClick="this.form.submit();" /> $lt{'ti'}</td>
450: <td><input type="checkbox" name="attr1" value="1" $attrchk[1] onClick="this.form.submit();" /> $lt{'si'}</td>
451: <td><input type="checkbox" name="attr2" value="1" $attrchk[2] onClick="this.form.submit();" /> $lt{'la'}</td>
452: <td><input type="checkbox" name="attr3" value="1" $attrchk[3] onClick="this.form.submit();" /> $lt{'lm'}</td>
453: <td><input type="checkbox" name="attr8" value="1" $attrchk[8] onClick="this.form.submit();" /> $lt{'st'}</td>
454: <td><input type="checkbox" name="attr10" value="1" $attrchk[10] onClick="this.form.submit();" /> $lt{'sa'}</td>
455: </tr><tr>
456: <td><input type="checkbox" name="attr4" value="1" $attrchk[4] onClick="this.form.submit();" /> $lt{'au'}</td>
457: <td><input type="checkbox" name="attr5" value="1" $attrchk[5] onClick="this.form.submit();" /> $lt{'kw'}</td>
458: <td><input type="checkbox" name="attr6" value="1" $attrchk[6] onClick="this.form.submit();" /> $lt{'ln'}</td>
459: <td><input type="checkbox" name="attr7" value="1" $attrchk[7] onClick="this.form.submit();" /> $lt{'sr'}</td>
460: <td><input type="checkbox" name="attr9" value="1" $attrchk[9] onClick="this.form.submit();" /> $lt{'av'}</td>
461: <td><input type="checkbox" name="attr11" value="1" $attrchk[11] onClick="this.form.submit();" /> $lt{'li'}</td>
462: </tr></table>
463: <input type="hidden" name="attrs" value="1" />
464: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
465: <input type="hidden" name="acts" value="" />
466: $closebutton $groupimportbutton
467: END
468: # -------------- Filter out sequence containment in crumbs and "recent folders"
469: my $storeuri=$uri;
470: $storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
471: $storeuri=~s/\/+/\//g;
472: # ---------------------------------------------------------------- Bread crumbs
473: $r->print(&Apache::lonhtmlcommon::crumbs($storeuri,'','',
474: (($ENV{'form.catalogmode'} eq 'groupimport')?
475: 'document.forms.fileattr':'')).
476: &Apache::lonhtmlcommon::select_recent('residx','resrecent',
477: 'this.form.action=this.form.resrecent.options[this.form.resrecent.selectedIndex].value;this.form.submit();'));
478: # -------------------------------------------------------- Resource Home Button
479: my $reshome=$ENV{'course.'.$ENV{'request.course.id'}.'.reshome'};
480: if ($reshome) {
481: $r->print("<font size='+2'><a href='");
482: if ($ENV{'form.catalogmode'} eq 'groupimport') {
483: $r->print('javascript:document.forms.fileattr.action="'.$reshome.'";document.forms.fileattr.submit();');
484: } else {
485: $r->print($reshome);
486: }
487: $r->print("'>".&mt('Home').'</a></font>');
488: }
489: $r->print('</form>');
490: # ------------------------------------------------------ Remember where we were
491: &Apache::loncommon::storeresurl($storeuri);
492: &Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
493: # ----------------- output starting row to the indexed file/directory hierarchy
494: my $titleclr="#ddffff";
495: # $r->print(&initdebug());
496: # $r->print(&writedebug("Omit:@Omit")) if (@Omit);
497: # $r->print(&writedebug("Only:@Only")) if (@Only);
498: $r->print("<table width='100\%' border=0><tr><td bgcolor=#777777>\n");
499: $r->print("<table width='100\%' border=0><tr bgcolor=$titleclr>\n");
500: $r->print("<td $colspan><b>".&mt('Name')."</b></td>\n");
501: $r->print("<td><b>".&mt('Title')."</b></td>\n")
502: if ($hash{'display_attrs_0'} == 1);
503: $r->print("<td align=right><b>".&mt("Size")." (".&mt("bytes").") ".
504: "</b></td>\n") if ($hash{'display_attrs_1'} == 1);
505: $r->print("<td><b>".&mt("Last accessed")."</b></td>\n")
506: if ($hash{'display_attrs_2'} == 1);
507: $r->print("<td><b>".&mt("Last modified")."</b></td>\n")
508: if ($hash{'display_attrs_3'} == 1);
509: $r->print("<td><b>".&mt("Author(s)")."</b></td>\n")
510: if ($hash{'display_attrs_4'} == 1);
511: $r->print("<td><b>".&mt("Keywords")."</b></td>\n")
512: if ($hash{'display_attrs_5'} == 1);
513: $r->print("<td><b>".&mt("Language")."</b></td>\n")
514: if ($hash{'display_attrs_6'} == 1);
515: $r->print("<td><b>".&mt("Resource")."</b></td>\n")
516: if ($hash{'display_attrs_7'} == 1);
517: $r->print("<td><b>".&mt("Usage Statistics")." <br />(".
518: &mt("Courses/Network Hits").")</b></td>\n")
519: if ($hash{'display_attrs_8'} == 1);
520: $r->print("<td><b>".&mt("Source Available")."</b></td>\n")
521: if ($hash{'display_attrs_10'} == 1);
522: $r->print("<td><b>".&mt("Linked/Related Resources")."</b></td>\n")
523: if ($hash{'display_attrs_11'} == 1);
524: $r->print('</tr>');
525:
526: # ----------------- read in what directories have previously been set to "open"
527: foreach (keys %hash) {
528: if ($_ =~ /^diropen_status_/) {
529: my $key = $_;
530: $key =~ s/^diropen_status_//;
531: $dirs{$key} = $hash{$_};
532: }
533: }
534:
535: if ($ENV{'form.openuri'}) { # take care of review and refresh options
536: my $uri=$ENV{'form.openuri'};
537: if (exists($hash{'diropen_status_'.$uri})) {
538: my $cursta = $hash{'diropen_status_'.$uri};
539: $dirs{$uri} = 'open';
540: $hash{'diropen_status_'.$uri} = 'open';
541: if ($cursta eq 'open') {
542: $dirs{$uri} = 'closed';
543: $hash{'diropen_status_'.$uri} = 'closed';
544: }
545: } else {
546: $hash{'diropen_status_'.$uri} = 'open';
547: $dirs{$uri} = 'open';
548: }
549: }
550:
551: my $toplevel;
552: my $indent = 0;
553: $uri = $uri.'/' if $uri !~ /.*\/$/;
554:
555: if ($ENV{'form.dirPointer'} ne 'on') {
556: $hash{'top.level'} = $uri;
557: $toplevel = $uri;
558: } else {
559: $toplevel = $hash{'top.level'};
560: }
561:
562: # -------------------------------- if not at top level, provide an uplink arrow
563: if ($toplevel ne '/res/'){
564: my (@uri_com) = split(/\//,$uri);
565: pop @uri_com;
566: my $upone = join('/',@uri_com);
567: my @list = qw (0);
568: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
569: $indent = 1;
570: }
571:
572: # -------- recursively go through all the directories and output as appropriate
573: &scanDir ($r,$toplevel,$indent,\%hash);
574:
575: # ---------------------------- embed hidden information useful for group import
576: $r->print("<form name='fnum'>");
577: $r->print("<input type='hidden' name='fnum' value='$fnum'></form>");
578:
579: # -------------------------------------------------------------- end the tables
580: $r->print('</table>');
581: $r->print('</td></tr></table>');
582:
583: # --------------------------------------------------- end the output and return
584: $r->print('</body></html>'."\n");
585: }
586: if(! $c->aborted()) {
587: # write back into the temporary file
588: my %dbfile;
589: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
590: while (my($key,$value) = each(%hash)) {
591: $dbfile{$key}=$value;
592: }
593: untie(%dbfile);
594: }
595: }
596:
597: return OK;
598: }
599:
600: # ----------------------------------------------- recursive scan of a directory
601: sub scanDir {
602: my ($r,$startdir,$indent,$hashref)=@_;
603: my $c = $r->connection();
604: my ($compuri,$curdir);
605: my $dirptr=16384;
606: my $obs;
607: $indent++;
608: my %dupdirs = %dirs;
609: my @list=&get_list($r,$startdir);
610: foreach my $line (@list) {
611: return if ($c->aborted());
612: #This is a kludge, sorry aboot this
613: my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
614: next if($strip =~ /.*\.meta$/ | $obs eq '1');
615: my (@fileparts) = split(/\./,$strip);
616: if ($hash{'display_attrs_9'} != 1) {
617: # if not all versions to be shown
618: if (scalar(@fileparts) >= 3) {
619: my $fext = pop @fileparts;
620: my $ov = pop @fileparts;
621: my $fname = join ('.',@fileparts,$fext);
622: next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
623: }
624: }
625:
626: if ($dom eq 'domain') {
627: # dom list has full path /res/<domain name>/ already
628: $curdir='';
629: $compuri = (split(/\&/,$line))[0];
630: } else {
631: # user, dir & file have name only, i.e., w/o path
632: $compuri = join('',$startdir,$strip,'/');
633: $curdir = $startdir;
634: }
635: my $diropen = 'closed';
636: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
637: while (my ($key,$val)= each %dupdirs) {
638: if ($key eq $compuri and $val eq "open") {
639: $diropen = "opened";
640: delete($dupdirs{$key});
641: delete($dirs{$key});
642: }
643: }
644: }
645: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
646: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
647: }
648: $indent--;
649: }
650:
651: # --------------- get complete matched list based on the uri (returns an array)
652: sub get_list {
653: my ($r,$uri)=@_;
654: my @list=();
655: (my $luri = $uri) =~ s/\//_/g;
656: if ($ENV{'form.updatedisplay'}) {
657: foreach (keys %hash) {
658: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
659: }
660: }
661:
662: if ($hash{'dirlist_files_'.$luri}) {
663: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
664: } elsif ($uri=~/\.(page|sequence)\/$/) {
665: # is a page or a sequence
666: $uri=~s/\/$//;
667: $uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
668: $uri=~s/\/+/\//g;
669: foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
670: my @ratpart=split(/\:/,$_);
671: push @list,$ratpart[1];
672: }
673: $hash{'dirlist_files_'.$luri} = join("\n",@list);
674: } else {
675: # is really a directory
676: @list = &Apache::lonnet::dirlist($uri);
677: $hash{'dirlist_files_'.$luri} = join("\n",@list);
678: &dynmetaread($uri);
679: }
680: return @list=&match_ext($r,@list);
681: }
682:
683: sub dynmetaread {
684: my $uri=shift;
685: if (($hash{'display_attrs_8'}==1) || ($hash{'display_attrs_11'}==1)) {
686: %dynhash=
687: (%dynhash,&Apache::lonmeta::get_dynamic_metadata_from_sql($uri));
688: }
689: }
690:
691: sub initdebug {
692: return <<ENDJS;
693: <script>
694: var debugging = true;
695: if (debugging) {
696: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
697: }
698:
699: function output(text) {
700: if (debugging) {
701: debuggingWindow.document.writeln(text);
702: }
703: }
704: output("<html><head><title>Debugging Window</title></head><body><pre>");
705: </script>
706: ENDJS
707: }
708:
709: sub writedebug {
710: my $text = shift;
711: return "<script>output('$text');</script>";
712: }
713:
714: # -------------------- filters out files based on extensions (returns an array)
715: sub match_ext {
716: my ($r,@packlist)=@_;
717: my @trimlist;
718: my $nextline;
719: my @fileext;
720: my $dirptr=16384;
721:
722: foreach my $line (@packlist) {
723: chomp $line;
724: $line =~ s/^\/home\/httpd\/html//;
725: my @unpackline = split (/\&/,$line);
726: next if ($unpackline[0] eq '.');
727: next if ($unpackline[0] eq '..');
728: my @filecom = split (/\./,$unpackline[0]);
729: my $fext = pop(@filecom);
730: my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
731: if ($fnptr == 0 and $unpackline[3] ne "") {
732: my $embstyle = &Apache::loncommon::fileembstyle($fext);
733: push @trimlist,$line if (defined($embstyle) &&
734: ($embstyle ne 'hdn' or $fext eq 'meta'));
735: } else {
736: push @trimlist,$line;
737: }
738: }
739: @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
740: return @trimlist;
741: }
742:
743: # ------------------------------- displays one line in appropriate table format
744: sub display_line {
745: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
746: my (@pathfn, $fndir);
747: # there could be relative paths (files actually belonging into this directory)
748: # or absolute paths (for example, from sequences)
749: my $absolute;
750: my $pathprefix;
751: if ($line=~m|^/res/| && $startdir ne '') {
752: $absolute=1;
753: $pathprefix='';
754: } else {
755: $absolute=0;
756: $pathprefix=$startdir;
757: }
758: my $dirptr=16384;
759: my $fileclr="#ffffe6";
760: my $iconpath= $r->dir_config('lonIconsURL') . '/';
761:
762: my @filecom = split (/\&/,$line);
763: my @pathcom = split (/\//,$filecom[0]);
764: my $listname = $pathcom[scalar(@pathcom)-1];
765: my $fnptr = $filecom[3]&$dirptr;
766: my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
767: $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
768:
769: my $tabtag='</td>';
770: my $i=0;
771: while ($i<=11) {
772: $tabtag=join('',$tabtag,"<td> </td>")
773: if $hash{'display_attrs_'.$i} == 1;
774: $i++;
775: }
776: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
777:
778: # display uplink arrow
779: if ($filecom[1] eq 'viewOneUp') {
780: my $updir=$startdir;
781: # -------------- Filter out sequence containment in crumbs and "recent folders"
782: $updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
783: $updir=~s/\/+/\//g;
784:
785: $r->print("<tr valign='$valign' bgcolor=$fileclr>$extrafield");
786: $r->print("<td>\n");
787: $r->print ('<form method="post" name="dirpathUP" action="'.$updir.
788: '/" '.
789: 'onSubmit="return rep_dirpath(\'UP\','.
790: 'document.forms.fileattr.acts.value)" '.
791: 'enctype="application/x-www-form-urlencoded"'.
792: '>'."\n");
793: $r->print ('<input type=hidden name=openuri value="'.
794: $startdir.'">'."\n");
795: $r->print ('<input type="hidden" name="acts" value="">'."\n");
796: $r->print ('<input src="'.$iconpath.'arrow_up.gif"');
797: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
798: "\n");
799: $r->print(&mt("Up")." $tabtag</tr></form>\n");
800: return OK;
801: }
802: # Do we have permission to look at this?
803:
804: if($filecom[15] ne '1') { return OK if (!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])); }
805:
806: # make absolute links appear on different background
807: if ($absolute) { $fileclr='#ccdd99'; }
808:
809: # display domain
810: if ($filecom[1] eq 'domain') {
811: $r->print ('<input type="hidden" name="dirPointer" value="on">'."\n")
812: if ($ENV{'form.dirPointer'} eq "on");
813: $r->print("<tr valign='$valign' bgcolor=$fileclr>$extrafield");
814: $r->print("<td>");
815: &begin_form ($r,$filecom[0]);
816: my $anchor = $filecom[0];
817: $anchor =~ s/\///g;
818: $r->print ('<a name="'.$anchor.'">');
819: $r->print ('<input type="hidden" name="acts" value="">');
820: $r->print ('<input src="'.$iconpath.'folder_pointer_'.
821: $diropen.'.gif"');
822: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
823: "\n");
824: $r->print ('<a href="javascript:gothere(\''.$filecom[0].
825: '\')"><img src="'.$iconpath.'server.gif"');
826: $r->print (' border="0" /></a>'."\n");
827: $r->print (&mt("Domain")." - $listname ");
828: if ($Apache::lonnet::domaindescription{$listname}) {
829: $r->print("(".$Apache::lonnet::domaindescription{$listname}.
830: ")");
831: }
832: $r->print (" $tabtag</tr></form>\n");
833: return OK;
834:
835: # display user directory
836: }
837: if ($filecom[1] eq 'user') {
838: $r->print("<tr valign=$valign bgcolor=$fileclr>$extrafield");
839: $r->print("<td nowrap>\n");
840: my $curdir = $startdir.$filecom[0].'/';
841: my $anchor = $curdir;
842: $anchor =~ s/\///g;
843: &begin_form ($r,$curdir);
844: $r->print ('<a name="'.$anchor.'"><img src="'.$iconpath.
845: 'whitespace1.gif" border="0" />'."\n");
846: $r->print ('<input type="hidden" name="acts" value="">');
847: $r->print ('<input src="'.$iconpath.'folder_pointer_'.$diropen.
848: '.gif"');
849: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
850: "\n");
851: $r->print ('<a href="javascript:gothere(\''.$curdir.'\')"><img src='.
852: $iconpath.'quill.gif border="0" name="'.$msg.
853: '" height="22" /></a>');
854: my $domain=(split(m|/|,$startdir))[2];
855: my $plainname=&Apache::loncommon::plainname($listname,$domain);
856: $r->print ($listname);
857: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
858: $r->print ($tabtag.'</tr></form>'."\n");
859: return OK;
860: }
861:
862: # display file
863: if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
864: my $filelink = $pathprefix.$filecom[0];
865: my @file_ext = split (/\./,$listname);
866: my $curfext = $file_ext[-1];
867: if (@Omit) {
868: foreach (@Omit) { return OK if ($curfext eq $_); }
869: }
870: if (@Only) {
871: my $skip = 1;
872: foreach (@Only) { $skip = 0 if ($curfext eq $_); }
873: return OK if ($skip > 0);
874: }
875: # Set the icon for the file
876: my $iconname = &Apache::loncommon::icon($listname);
877: $r->print("<tr valign='$valign' bgcolor=$fileclr><td nowrap>");
878:
879: my $metafile = $Apache::lonnet::perlvar{'lonDocRoot'}.$pathprefix.
880: $filecom[0].'.meta';
881: if (-e $metafile) {
882: $metafile=1;
883: } else {
884: $metafile=0;
885: }
886: if ($ENV{'form.catalogmode'} eq 'interactive') {
887: $r->print("<a href=\"javascript:select_data(\'",
888: $filelink,"')\">");
889: $r->print("<img src='",$iconpath,"select.gif' border='0' /></a>".
890: "\n");
891: $r->print("</td><td nowrap>");
892: } elsif ($ENV{'form.catalogmode'} eq 'groupimport') {
893: $r->print("<form name='form$fnum'>\n");
894: $r->print("<input type='checkbox' name='filelink"."' ".
895: "value='$filelink' onClick='".
896: "javascript:queue(\"form$fnum\")' ");
897: if ($hash{'store_'.$filelink}) {
898: $r->print("checked");
899: }
900: $r->print(">\n");
901: $r->print("</form>\n");
902: $r->print("</td><td nowrap>");
903: $hash{"pre_${fnum}_link"}=$filelink;
904: $fnum++;
905: }
906: # Form to open or close sequences
907: if ($filelink=~/\.(page|sequence)$/) {
908: my $curdir = $startdir.$filecom[0].'/';
909: my $anchor = $curdir;
910: $anchor =~ s/\///g;
911: &begin_form($r,$curdir);
912: $indent--;
913: }
914: # General indentation
915: if ($indent > 0 and $indent < 11) {
916: $r->print("<img src=",$iconpath,"whitespace",$indent,
917: ".gif border='0' />\n");
918: } elsif ($indent >0) {
919: my $ten = int($indent/10.);
920: my $rem = $indent%10.0;
921: my $count = 0;
922: while ($count < $ten) {
923: $r->print("<img src=",$iconpath,
924: "whitespace10.gif border='0' />\n");
925: $count++;
926: }
927: $r->print("<img src=",$iconpath,"whitespace",$rem,
928: ".gif border='0' />\n") if $rem > 0;
929: }
930: # Sequence open/close icon
931: if ($filelink=~/\.(page|sequence)$/) {
932: my $curdir = $startdir.$filecom[0].'/';
933: my $anchor = $curdir;
934: $anchor =~ s/\///g;
935: $r->print ('<input type="hidden" name="acts" value="">');
936: $r->print ('<a name="'.$anchor.'"><input src="'.$iconpath.
937: 'folder_pointer_'.$diropen.'.gif"');
938: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
939: "\n");
940: }
941: # Filetype icons
942: $r->print("<img src='$iconname' border='0' />\n");
943: # Close form to open/close sequence
944: if ($filelink=~/\.(page|sequence)$/) {
945: $r->print('</form>');
946: }
947: $r->print (" <a href=\"javascript:openWindow('".$filelink.
948: "', 'previewfile', '450', '500', 'no', 'yes','yes')\";".
949: " TARGET=_self>$listname</a> ");
950:
951: $r->print (" (<a href=\"javascript:openWindow('".$filelink.
952: ".meta', 'metadatafile', '500', '550', 'no', 'yes','no')\"; ".
953: "TARGET=_self>metadata</a>) ");
954: $r->print("</td>\n");
955: if ($hash{'display_attrs_0'} == 1) {
956: my $title = &Apache::lonnet::gettitle($filelink,'title');
957: $r->print('<td> '.($title eq '' ? ' ' : $title).
958: ' </td>'."\n");
959: }
960: $r->print('<td align=right> ',
961: $filecom[8]," </td>\n")
962: if $hash{'display_attrs_1'} == 1;
963: $r->print('<td> '.
964: (localtime($filecom[9]))." </td>\n")
965: if $hash{'display_attrs_2'} == 1;
966: $r->print('<td> '.
967: (localtime($filecom[10]))." </td>\n")
968: if $hash{'display_attrs_3'} == 1;
969:
970: if ($hash{'display_attrs_4'} == 1) {
971: my $author = &Apache::lonnet::metadata($filelink,'author');
972: $r->print('<td> '.($author eq '' ? ' ' : $author).
973: " </td>\n");
974: }
975: if ($hash{'display_attrs_5'} == 1) {
976: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
977: # $keywords = ' ' if (!$keywords);
978: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
979: " </td>\n");
980: }
981: #'
982:
983: if ($hash{'display_attrs_6'} == 1) {
984: my $lang = &Apache::lonnet::metadata($filelink,'language');
985: $lang = &Apache::loncommon::languagedescription($lang);
986: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
987: " </td>\n");
988: }
989: if ($hash{'display_attrs_7'} == 1) {
990: my $output='';
991: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
992: if ($embstyle eq 'ssi') {
993: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
994: '.tmp';
995: if ((!$ENV{'form.updatedisplay'}) &&
996: (-e $cache)) {
997: open(FH,$cache);
998: $output=join("\n",<FH>);
999: close(FH);
1000: } else {
1001: $output=&Apache::lonnet::ssi_body($filelink);
1002: open(FH,">$cache");
1003: print FH $output;
1004: close(FH);
1005: }
1006: $output='<font size="-2">'.$output.'</font>';
1007: } elsif ($embstyle eq 'img') {
1008: $output='<img src="'.$filelink.'" />';
1009: } elsif ($filelink=~/^\/res\/(\w+)\/(\w+)\//) {
1010: $output='<img src="http://'.
1011: $Apache::lonnet::hostname{&Apache::lonnet::homeserver($2,$1)}.
1012: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1013: }
1014: $r->print('<td> '.($output eq '' ? ' ':$output).
1015: " </td>\n");
1016: }
1017: if ($hash{'display_attrs_8'} == 1) {
1018: # statistics
1019: $r->print("<td>");
1020: if ($dynhash{$filelink}->{'stdno'}) {
1021: $r->print(&mt('Number of students: ').
1022: $dynhash{$filelink}->{'stdno'}.'<br />');
1023: }
1024: $r->print(" </td>\n");
1025:
1026: }
1027: if ($hash{'display_attrs_10'} == 1) {
1028: my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
1029: if($source eq 'open') {
1030: my $sourcelink = &Apache::lonsource::make_link($filelink);
1031: $r->print('<td>'."<a href=\"javascript:openWindow('".$sourcelink.
1032: "', 'previewsource', '700', '700', 'no', 'yes','yes')\";".
1033: " TARGET=_self>Yes</a> "."</td>\n");
1034: } else { #A cuddled else. :P
1035: $r->print("<td> </td>\n");
1036: }
1037: }
1038: if ($hash{'display_attrs_11'} == 1) {
1039: # links
1040: $r->print('<td>');
1041: &dynmetaprint($r,$filelink,'goto_list');
1042: &dynmetaprint($r,$filelink,'comefrom_list');
1043: &dynmetaprint($r,$filelink,'sequsage_list');
1044: my $dependencies=&Apache::lonnet::metadata($filelink,'dependencies');
1045: if ($dependencies=~/\w/) {
1046: $r->print(&mt('Links to:').
1047: &Apache::lonmeta::prettyprint('linkto_list',&Apache::lonnet::metadata($filelink,'dependencies'),
1048: (($ENV{'form.catalogmode'} ne 'groupimport')?'preview':''),
1049: '',
1050: (($ENV{'form.catalogmode'} eq 'groupimport')?'document.forms.fileattr':''),1));
1051: }
1052: $r->print('</td>');
1053: }
1054: $r->print("</tr>\n");
1055: }
1056:
1057: # -- display directory
1058: if ($fnptr == $dirptr) {
1059: my $curdir = $startdir.$filecom[0].'/';
1060: my $anchor = $curdir;
1061: $anchor =~ s/\///g;
1062: $r->print("<tr bgcolor=$fileclr>$extrafield<td valign=$valign>");
1063: &begin_form ($r,$curdir);
1064: my $indentm1 = $indent-1;
1065: if ($indentm1 < 11 and $indentm1 > 0) {
1066: $r->print("<img src=",$iconpath,"whitespace",$indentm1,
1067: ".gif border='0' />\n");
1068: } else {
1069: my $ten = int($indentm1/10.);
1070: my $rem = $indentm1%10.0;
1071: my $count = 0;
1072: while ($count < $ten) {
1073: $r->print ("<img src=",$iconpath
1074: ,"whitespace10.gif border='0' />\n");
1075: $count++;
1076: }
1077: $r->print ("<img src=",$iconpath,"whitespace",$rem,
1078: ".gif border='0' />\n") if $rem > 0;
1079: }
1080: $r->print ('<input type="hidden" name="acts" value="">');
1081: $r->print ('<a name="'.$anchor.'"><input src="'.$iconpath.
1082: 'folder_pointer_'.$diropen.'.gif"');
1083: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
1084: "\n");
1085: $r->print ('<a href="javascript:gothere(\''.$curdir.'\')"><img src="'.
1086: $iconpath.'folder_'.$diropen.'.gif" border="0" /></a>'.
1087: "\n");
1088: $r->print ("$listname</td>\n");
1089: # Attributes
1090: my $filelink = $startdir.$filecom[0].'/default';
1091:
1092: if ($hash{'display_attrs_0'} == 1) {
1093: my $title = &Apache::lonnet::gettitle($filelink,'title');
1094: $r->print('<td> '.($title eq '' ? ' ' : $title).
1095: ' </td>'."\n");
1096: }
1097: $r->print('<td align=right> ',
1098: $filecom[8]," </td>\n")
1099: if $hash{'display_attrs_1'} == 1;
1100: $r->print('<td> '.
1101: (localtime($filecom[9]))." </td>\n")
1102: if $hash{'display_attrs_2'} == 1;
1103: $r->print('<td> '.
1104: (localtime($filecom[10]))." </td>\n")
1105: if $hash{'display_attrs_3'} == 1;
1106:
1107: if ($hash{'display_attrs_4'} == 1) {
1108: my $author = &Apache::lonnet::metadata($filelink,'author');
1109: $r->print('<td> '.($author eq '' ? ' ' : $author).
1110: " </td>\n");
1111: }
1112: if ($hash{'display_attrs_5'} == 1) {
1113: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1114: # $keywords = ' ' if (!$keywords);
1115: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1116: " </td>\n");
1117: }
1118: if ($hash{'display_attrs_6'} == 1) {
1119: my $lang = &Apache::lonnet::metadata($filelink,'language');
1120: $lang = &Apache::loncommon::languagedescription($lang);
1121: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1122: " </td>\n");
1123: }
1124: if ($hash{'display_attrs_7'} == 1) {
1125: $r->print('<td> </td>');
1126: }
1127: if ($hash{'display_attrs_8'} == 1) {
1128: $r->print('<td> </td>');
1129: }
1130: if ($hash{'display_attrs_10'} == 1) {
1131: $r->print('<td> </td>');
1132: }
1133: if ($hash{'display_attrs_11'} == 1) {
1134: $r->print('<td> </td>');
1135: }
1136: $r->print('</form></tr>');
1137: }
1138:
1139: }
1140:
1141: sub dynmetaprint {
1142: my ($r,$filelink,$item)=@_;
1143: if ($dynhash{$filelink}->{$item}) {
1144: $r->print($fieldnames{$item}.': '.
1145: &Apache::lonmeta::prettyprint($item,
1146: $dynhash{$filelink}->{$item},
1147: (($ENV{'form.catalogmode'} ne 'groupimport')?'preview':''),
1148: '',
1149: (($ENV{'form.catalogmode'} eq 'groupimport')?'document.forms.fileattr':''),1));
1150: }
1151: }
1152:
1153: # ------------------- prints the beginning of a form for directory or file link
1154: sub begin_form {
1155: my ($r,$uri) = @_;
1156: my $anchor = $uri;
1157: $anchor =~ s/\///g;
1158: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1159: '#'.$anchor.
1160: '" onSubmit="return rep_dirpath(\''.$dnum.'\''.
1161: ',document.forms.fileattr.acts.value)" '.
1162: 'enctype="application/x-www-form-urlencoded">'."\n");
1163: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'">'.
1164: "\n");
1165: $r->print ('<input type="hidden" name="dirPointer" value="on">'."\n");
1166: $dnum++;
1167: }
1168:
1169: # --------- settings whenever the user causes the indexer window to be launched
1170: sub start_fresh_session {
1171: delete $hash{'form.catalogmode'};
1172: delete $hash{'form.mode'};
1173: delete $hash{'form.form'};
1174: delete $hash{'form.element'};
1175: delete $hash{'form.omit'};
1176: delete $hash{'form.only'};
1177: foreach (keys %hash) {
1178: delete $hash{$_} if (/^(pre_|store)/);
1179: }
1180: }
1181:
1182: # ------------------------------------------------------------------- setvalues
1183: sub setvalues {
1184: # setvalues is used in registerurl to synchronize the database
1185: # hash and environment hashes
1186: my ($H1,$h1key,$H2,$h2key) =@_;
1187: #
1188: if (exists $H2->{$h2key}) {
1189: $H1->{$h1key} = $H2->{$h2key};
1190: } elsif (exists $H1->{$h1key}) {
1191: $H2->{$h2key} = $H1->{$h1key};
1192: }
1193: }
1194:
1195: 1;
1196:
1197: sub cleanup {
1198: if (tied(%hash)){
1199: &Apache::lonnet::logthis('Cleanup indexer: hash');
1200: }
1201: }
1202:
1203: =head1 NAME
1204:
1205: Apache::lonindexer - mod_perl module for cross server filesystem browsing
1206:
1207: =head1 SYNOPSIS
1208:
1209: Invoked by /etc/httpd/conf/srm.conf:
1210:
1211: <LocationMatch "^/res.*/$">
1212: SetHandler perl-script
1213: PerlHandler Apache::lonindexer
1214: </LocationMatch>
1215:
1216: =head1 INTRODUCTION
1217:
1218: This module enables a scheme of browsing across a cross server.
1219:
1220: This is part of the LearningOnline Network with CAPA project
1221: described at http://www.lon-capa.org.
1222:
1223: =head1 BEGIN SUBROUTINE
1224:
1225: This routine is only run once after compilation.
1226:
1227: =over 4
1228:
1229: =item *
1230:
1231: Initializes %language hash table.
1232:
1233: =back
1234:
1235: =head1 HANDLER SUBROUTINE
1236:
1237: This routine is called by Apache and mod_perl.
1238:
1239: =over 4
1240:
1241: =item *
1242:
1243: read in machine configuration variables
1244:
1245: =item *
1246:
1247: see if called from an interactive mode
1248:
1249: =item *
1250:
1251: refresh environment with user database values (in %hash)
1252:
1253: =item *
1254:
1255: define extra fields and buttons in case of special mode
1256:
1257: =item *
1258:
1259: set catalogmodefunctions to have extra needed javascript functionality
1260:
1261: =item *
1262:
1263: print header
1264:
1265: =item *
1266:
1267: evaluate actions from previous page (both cumulatively and chronologically)
1268:
1269: =item *
1270:
1271: output title
1272:
1273: =item *
1274:
1275: get state of file attributes to be showing
1276:
1277: =item *
1278:
1279: output state of file attributes to be showing
1280:
1281: =item *
1282:
1283: output starting row to the indexed file/directory hierarchy
1284:
1285: =item *
1286:
1287: read in what directories have previously been set to "open"
1288:
1289: =item *
1290:
1291: if not at top level, provide an uplink arrow
1292:
1293: =item *
1294:
1295: recursively go through all the directories and output as appropriate
1296:
1297: =item *
1298:
1299: information useful for group import
1300:
1301: =item *
1302:
1303: end the tables
1304:
1305: =item *
1306:
1307: end the output and return
1308:
1309: =back
1310:
1311: =head1 OTHER SUBROUTINES
1312:
1313: =over 4
1314:
1315: =item *
1316:
1317: scanDir - recursive scan of a directory
1318:
1319: =item *
1320:
1321: get_list - get complete matched list based on the uri (returns an array)
1322:
1323: =item *
1324:
1325: match_ext - filters out files based on extensions (returns an array)
1326:
1327: =item *
1328:
1329: display_line - displays one line in appropriate table format
1330:
1331: =item *
1332:
1333: begin_form - prints the beginning of a form for directory or file link
1334:
1335: =item *
1336:
1337: start_fresh_session - settings whenever the user causes the indexer window
1338: to be launched
1339:
1340: =back
1341:
1342: =cut
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