File:
[LON-CAPA] /
loncom /
interface /
lonindexer.pm
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1.90:
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Thu Feb 5 03:42:52 2004 UTC (20 years, 4 months ago) by
taceyjo1
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The bits and pieces to make it use the lond is obsolete process, should be a little faster as it does not depend on ANY meta data so long as you don't have any of the checkboxes checked. I think, but I don't know how to profile if it's making a call to lonnet or not
1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.90 2004/02/05 03:42:52 taceyjo1 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::Constants qw(:common);
51: use Apache::lonmeta;
52: use Apache::File;
53: use Apache::lonlocal;
54: use GDBM_File;
55:
56: # ---------------------------------------- variables used throughout the module
57: my %hash; # global user-specific gdbm file
58: my %dirs; # keys are directories, values are the open/close status
59: my %language; # has the reference information present in language.tab
60:
61: # ----- Values which are set by the handler subroutine and are accessible to
62: # ----- other methods.
63: my $extrafield; # default extra table cell
64: my $fnum; # file counter
65: my $dnum; # directory counter
66:
67: # ----- Used to include or exclude files with certain extensions.
68: my @Only = ();
69: my @Omit = ();
70:
71:
72: # ----------------------------- Handling routine called via Apache and mod_perl
73: sub handler {
74: my $r = shift;
75: my $c = $r->connection();
76: &Apache::loncommon::content_type($r,'text/html');
77: &Apache::loncommon::no_cache($r);
78: $r->send_http_header;
79: return OK if $r->header_only;
80: $fnum=0;
81: $dnum=0;
82:
83: # Deal with stupid global variables (is there a way around making
84: # these global to this package? It is just so wrong....)
85: undef (@Only);
86: undef (@Omit);
87:
88: # ------------------------------------- read in machine configuration variables
89: my $iconpath= $r->dir_config('lonIconsURL') . "/";
90: my $domain = $r->dir_config('lonDefDomain');
91: my $role = $r->dir_config('lonRole');
92: my $loadlim = $r->dir_config('lonLoadLim');
93: my $servadm = $r->dir_config('lonAdmEMail');
94: my $sysadm = $r->dir_config('lonSysEMail');
95: my $lonhost = $r->dir_config('lonHostID');
96: my $tabdir = $r->dir_config('lonTabDir');
97:
98: my $fileclr='#ffffe6';
99: my $line;
100: my (@attrchk,@openpath);
101: my $uri=$r->uri;
102:
103: # -------------------------------------- see if called from an interactive mode
104: # Get the parameters from the query string
105: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
106: ['catalogmode','launch','acts','mode','form','element',
107: 'only','omit','titleelement']);
108: #-------------------------------------------------------------------
109: my $closebutton='';
110: my $groupimportbutton='';
111: my $colspan='';
112:
113: $extrafield='';
114: my $diropendb =
115: "/home/httpd/perl/tmp/$ENV{'user.domain'}_$ENV{'user.name'}_indexer.db";
116: %hash = ();
117: {
118: my %dbfile;
119: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_READER(),0640)) {
120: while(my($key,$value)=each(%dbfile)) {
121: $hash{$key}=$value;
122: }
123: untie(%dbfile);
124: }
125: }
126: {
127: if ($ENV{'form.launch'} eq '1') {
128: &start_fresh_session();
129: }
130: # -------------------- refresh environment with user database values (in %hash)
131: &setvalues(\%hash,'form.catalogmode',\%ENV,'form.catalogmode' );
132:
133: # --------------------- define extra fields and buttons in case of special mode
134: if ($ENV{'form.catalogmode'} eq 'interactive') {
135: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
136: '<a name="$anchor"><img src="'.$iconpath.'whitespace1.gif"'.
137: ' border="0" /></td>';
138: $colspan=" colspan='2' ";
139: my $cl=&mt('Close');
140: $closebutton=<<END;
141: <input type="button" name="close" value='$cl' onClick="self.close()">
142: END
143: }
144: elsif ($ENV{'form.catalogmode'} eq 'groupimport') {
145: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
146: '<a name="$anchor"><img src="'.$iconpath.'whitespace1.gif"'.
147: ' border="0" /></td>';
148: $colspan=" colspan='2' ";
149: my $cl=&mt('Close');
150: my $gi=&mt('Group Import');
151: $closebutton=<<END;
152: <input type="button" name="close" value='$cl' onClick="self.close()">
153: END
154: $groupimportbutton=<<END;
155: <input type="button" name="groupimport" value='$gi'
156: onClick="javascript:select_group()">
157: END
158: }
159: # Additions made by Matthew to make the browser a little easier to deal
160: # with in the future.
161: #
162: # $mode (at this time) indicates if we are in edit mode.
163: # $form is the name of the form that the URL is placed when the
164: # selection is made.
165: # $element is the name of the element in $formname which receives
166: # the URL.
167: &Apache::lonxml::debug('Checking mode, form, element');
168: &setvalues(\%hash,'form.mode' ,\%ENV,'form.mode' );
169: &setvalues(\%hash,'form.form' ,\%ENV,'form.form' );
170: &setvalues(\%hash,'form.element' ,\%ENV,'form.element');
171: &setvalues(\%hash,'form.titleelement',\%ENV,'form.titleelement');
172: &setvalues(\%hash,'form.only' ,\%ENV,'form.only' );
173: &setvalues(\%hash,'form.omit' ,\%ENV,'form.omit' );
174:
175: # Deal with 'omit' and 'only'
176: if (exists $ENV{'form.omit'}) {
177: @Omit = split(',',$ENV{'form.omit'});
178: }
179: if (exists $ENV{'form.only'}) {
180: @Only = split(',',$ENV{'form.only'});
181: }
182:
183: my $mode = $ENV{'form.mode'};
184: my ($form,$element,$titleelement);
185: if ($mode eq 'edit' || $mode eq 'parmset') {
186: $form = $ENV{'form.form'};
187: $element = $ENV{'form.element'};
188: $titleelement = $ENV{'form.titleelement'};
189: }
190: #&Apache::lonxml::debug("mode=$mode form=$form element=$element titleelement=$titleelement");
191: # ------ set catalogmodefunctions to have extra needed javascript functionality
192: my $catalogmodefunctions='';
193: if ($ENV{'form.catalogmode'} eq 'interactive' or
194: $ENV{'form.catalogmode'} eq 'groupimport') {
195: # The if statement below sets us up to use the old version
196: # by default (ie. if $mode is undefined). This is the easy
197: # way out. Hopefully in the future I'll find a way to get
198: # the calls dealt with in a more comprehensive manner.
199:
200: #
201: # There is now also mode "simple", which is for the simple version of the rat
202: #
203: #
204: if (!defined($mode) || ($mode ne 'edit' && $mode ne 'parmset')) {
205: my $location = "/adm/groupsort?catalogmode=groupimport&";
206: $location .= "mode=".$mode."&";
207: $location .= "acts=";
208: $catalogmodefunctions=<<"END";
209: function select_data(title,url) {
210: changeTitle(title);
211: changeURL(url);
212: self.close();
213: }
214: function select_group() {
215: window.location="$location"+document.forms.fileattr.acts.value;
216: }
217: function changeTitle(val) {
218: if (opener.inf) {
219: if (opener.inf.document.forms.resinfo.elements.t) {
220: opener.inf.document.forms.resinfo.elements.t.value=val;
221: }
222: }
223: }
224: function changeURL(val) {
225: if (opener.inf) {
226: if (opener.inf.document.forms.resinfo.elements.u) {
227: opener.inf.document.forms.resinfo.elements.u.value=val;
228: }
229: }
230: }
231: END
232: } elsif ($mode eq 'edit') { # we are in 'edit' mode
233: my $location = "/adm/groupsort?catalogmode=interactive&";
234: $location .= "form=$form&element=$element&mode=edit&acts=";
235: $catalogmodefunctions=<<END;
236: // mode = $mode
237: function select_data(title,url) {
238: changeURL(url);
239: changeTitle(title);
240: self.close();
241: }
242:
243: function select_group() {
244: window.location="$location"+document.forms.fileattr.acts.value;
245: }
246:
247: function changeURL(val) {
248: if (window.opener.document) {
249: window.opener.document.forms["$form"].elements["$element"].value=val;
250: } else {
251: alert("The file you selected is: "+val);
252: }
253: }
254: END
255: if (!$titleelement) {
256: $catalogmodefunctions.='function changeTitle(val) {}';
257: } else {
258: $catalogmodefunctions.=<<END;
259: function changeTitle(val) {
260: if (window.opener.document) {
261: window.opener.document.forms["$form"].elements["$titleelement"].value=val;
262: } else {
263: alert("The title of the file you selected is: "+val);
264: }
265: }
266: END
267: }
268: } elsif ($mode eq 'parmset') {
269: my $location = "/adm/groupsort?catalogmode=interactive&";
270: $location .= "form=$form&element=$element&mode=parmset&acts=";
271: $catalogmodefunctions=<<END;
272: // mode = $mode
273: function select_data(title,url) {
274: changeURL(url);
275: self.close();
276: }
277:
278: function select_group() {
279: window.location="$location"+document.forms.fileattr.acts.value;
280: }
281:
282: function changeURL(val) {
283: if (window.opener.document) {
284: var elementname = "$element"+"_value";
285: var checkboxname = "$element"+"_setparmval";
286: window.opener.document.forms["$form"].elements[elementname].value=val;
287: window.opener.document.forms["$form"].elements[checkboxname].checked=true;
288: } else {
289: alert("The file you selected is: "+val);
290: }
291: }
292:
293: END
294: }
295: }
296: $catalogmodefunctions.=<<END;
297: var acts='';
298: function rep_dirpath(suffix,val) {
299: eval("document.forms.dirpath"+suffix+".acts.value=val");
300: }
301: END
302: if ($ENV{'form.catalogmode'} eq 'groupimport') {
303: $catalogmodefunctions.=<<END;
304: function queue(val) {
305: if (eval("document.forms."+val+".filelink.checked")) {
306: var l=val.length;
307: var v=val.substring(4,l);
308: document.forms.fileattr.acts.value+='1a'+v+'b';
309: }
310: else {
311: var l=val.length;
312: var v=val.substring(4,l);
313: document.forms.fileattr.acts.value+='0a'+v+'b';
314: }
315: }
316: END
317: }
318:
319: # ---------------------------------------------------------------- Print Header
320: $r->print(<<ENDHEADER);
321: <html>
322: <head>
323: <title>The LearningOnline Network With CAPA Directory Browser</title>
324:
325: <script type="text/javascript">
326: $catalogmodefunctions
327: function openWindow(url, wdwName, w, h, toolbar,scrollbar,locationbar) {
328: var xpos = (screen.width-w)/2;
329: xpos = (xpos < 0) ? '0' : xpos;
330: var ypos = (screen.height-h)/2-30;
331: ypos = (ypos < 0) ? '0' : ypos;
332: var options = "width=" + w + ",height=" + h + ",screenx="+xpos+",screeny="+ypos+",";
333: options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
334: options += "menubar=no,toolbar="+toolbar+",location="+locationbar+",directories=no";
335: var newWin = window.open(url, wdwName, options);
336: newWin.focus();
337: }
338: function gothere(val) {
339: window.location=val+'?acts='+document.forms.fileattr.acts.value;
340: }
341: </script>
342:
343: </head>
344: ENDHEADER
345: my ($headerdom)=($uri=~/^\/res\/(\w+)\//);
346: $r->print(&Apache::loncommon::bodytag('Browse Resources',undef,undef,undef,
347: $headerdom));
348: # - Evaluate actions from previous page (both cumulatively and chronologically)
349: if ($ENV{'form.catalogmode'} eq 'groupimport') {
350: my $acts=$ENV{'form.acts'};
351: my @Acts=split(/b/,$acts);
352: my %ahash;
353: my %achash;
354: my $ac=0;
355: # some initial hashes for working with data
356: foreach (@Acts) {
357: my ($state,$ref)=split(/a/);
358: $ahash{$ref}=$state;
359: $achash{$ref}=$ac;
360: $ac++;
361: }
362: # sorting through the actions and changing the global database hash
363: foreach (sort {$achash{$a}<=>$achash{$b}} (keys %ahash)) {
364: my $key=$_;
365: if ($ahash{$key} eq '1') {
366: $hash{'store_'.$hash{'pre_'.$key.'_link'}}=
367: $hash{'pre_'.$key.'_title'};
368: $hash{'storectr_'.$hash{'pre_'.$key.'_link'}}=
369: $hash{'storectr'}+0;
370: $hash{'storectr'}++;
371: }
372: if ($ahash{$key} eq '0') {
373: if ($hash{'store_'.$hash{'pre_'.$key.'_link'}}) {
374: delete $hash{'store_'.$hash{'pre_'.$key.'_link'}};
375: }
376: }
377: }
378: # deleting the previously cached listing
379: foreach (keys %hash) {
380: if ($_ =~ /^pre_/ && $_ =~/link$/) {
381: my $key = $_;
382: $key =~ s/^pre_//;
383: $key =~ s/_[^_]*$//;
384: delete $hash{'pre_'.$key.'_title'};
385: delete $hash{'pre_'.$key.'_link'};
386: }
387: }
388: }
389:
390: # ---------------------------------- get state of file attributes to be showing
391: if ($ENV{'form.attrs'}) {
392: for (my $i=0; $i<=9; $i++) {
393: delete $hash{'display_attrs_'.$i};
394: if ($ENV{'form.attr'.$i} == 1) {
395: $attrchk[$i] = 'checked';
396: $hash{'display_attrs_'.$i} = 1;
397: }
398: }
399: } else {
400: for (my $i=0; $i<=9; $i++) {
401: $attrchk[$i] = 'checked' if $hash{'display_attrs_'.$i} == 1;
402: }
403: }
404:
405: # ------------------------------- output state of file attributes to be showing
406: # All versions has to the last item
407: # since it does not take an extra col
408: my %lt=&Apache::lonlocal::texthash(
409: 'ti' => 'Title',
410: 'si' => 'Size',
411: 'la' => 'Last access',
412: 'lm' => 'Last modified',
413: 'st' => 'Statistics',
414: 'au' => 'Author',
415: 'kw' => 'Keywords',
416: 'ln' => 'Language',
417: 'sr' => 'Show resource',
418: 'av' => 'All versions',
419: 'ud' => 'Update Display'
420: );
421: my $Displayfileattributes=&mt('Display file attributes');
422: $r->print(<<END);
423: <form method="post" name="fileattr" action="$uri"
424: enctype="application/x-www-form-urlencoded">
425: <b><font color="#666666">$Displayfileattributes</font></b><br />
426: <table border=0><tr>
427: <td><input type="checkbox" name="attr0" value="1" $attrchk[0] onClick="this.form.submit();" /> $lt{'ti'}</td>
428: <td><input type="checkbox" name="attr1" value="1" $attrchk[1] onClick="this.form.submit();" /> $lt{'si'}</td>
429: <td><input type="checkbox" name="attr2" value="1" $attrchk[2] onClick="this.form.submit();" /> $lt{'la'}</td>
430: <td><input type="checkbox" name="attr3" value="1" $attrchk[3] onClick="this.form.submit();" /> $lt{'lm'}</td>
431: <td><input type="checkbox" name="attr8" value="1" $attrchk[8] onClick="this.form.submit();" /> $lt{'st'}</td>
432: </tr><tr>
433: <td><input type="checkbox" name="attr4" value="1" $attrchk[4] onClick="this.form.submit();" /> $lt{'au'}</td>
434: <td><input type="checkbox" name="attr5" value="1" $attrchk[5] onClick="this.form.submit();" /> $lt{'kw'}</td>
435: <td><input type="checkbox" name="attr6" value="1" $attrchk[6] onClick="this.form.submit();" /> $lt{'ln'}</td>
436: <td><input type="checkbox" name="attr7" value="1" $attrchk[7] onClick="this.form.submit();" /> $lt{'sr'}</td>
437: <td><input type="checkbox" name="attr9" value="1" $attrchk[9] onClick="this.form.submit();" /> $lt{'av'}</td>
438: <td> </td>
439: </tr></table>
440: <input type="hidden" name="attrs" value="1" />
441: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
442: <input type="hidden" name="acts" value="" />
443: $closebutton $groupimportbutton
444: END
445: # ---------------------------------------------------------------- Bread crumbs
446: $r->print(&Apache::lonhtmlcommon::crumbs($uri,'','',
447: (($ENV{'form.catalogmode'} eq 'groupimport')?
448: 'document.forms.fileattr':'')).
449: &Apache::lonhtmlcommon::select_recent('residx','resrecent',
450: 'this.form.action=this.form.resrecent.options[this.form.resrecent.selectedIndex].value;this.form.submit();').
451: '</form>');
452: # ------------------------------------------------------ Remember where we were
453: &Apache::loncommon::storeresurl($uri);
454: &Apache::lonhtmlcommon::store_recent('residx',$uri,$uri);
455: # ----------------- output starting row to the indexed file/directory hierarchy
456: my $titleclr="#ddffff";
457: # $r->print(&initdebug());
458: # $r->print(&writedebug("Omit:@Omit")) if (@Omit);
459: # $r->print(&writedebug("Only:@Only")) if (@Only);
460: $r->print("<table width='100\%' border=0><tr><td bgcolor=#777777>\n");
461: $r->print("<table width='100\%' border=0><tr bgcolor=$titleclr>\n");
462: $r->print("<td $colspan><b>".&mt('Name')."</b></td>\n");
463: $r->print("<td><b>".&mt('Title')."</b></td>\n")
464: if ($hash{'display_attrs_0'} == 1);
465: $r->print("<td align=right><b>".&mt("Size")." (".&mt("bytes").") ".
466: "</b></td>\n") if ($hash{'display_attrs_1'} == 1);
467: $r->print("<td><b>".&mt("Last accessed")."</b></td>\n")
468: if ($hash{'display_attrs_2'} == 1);
469: $r->print("<td><b>".&mt("Last modified")."</b></td>\n")
470: if ($hash{'display_attrs_3'} == 1);
471: $r->print("<td><b>".&mt("Author(s)")."</b></td>\n")
472: if ($hash{'display_attrs_4'} == 1);
473: $r->print("<td><b>".&mt("Keywords")."</b></td>\n")
474: if ($hash{'display_attrs_5'} == 1);
475: $r->print("<td><b>".&mt("Language")."</b></td>\n")
476: if ($hash{'display_attrs_6'} == 1);
477: $r->print("<td><b>".&mt("Resource")."</b></td>\n")
478: if ($hash{'display_attrs_7'} == 1);
479: $r->print("<td><b>".&mt("Usage Statistics")." <br />(".
480: &mt("Courses/Network Hits").")</b></td>\n")
481: if ($hash{'display_attrs_8'} == 1);
482: $r->print('</tr>');
483:
484: # ----------------- read in what directories have previously been set to "open"
485: foreach (keys %hash) {
486: if ($_ =~ /^diropen_status_/) {
487: my $key = $_;
488: $key =~ s/^diropen_status_//;
489: $dirs{$key} = $hash{$_};
490: }
491: }
492:
493: if ($ENV{'form.openuri'}) { # take care of review and refresh options
494: my $uri=$ENV{'form.openuri'};
495: if (exists($hash{'diropen_status_'.$uri})) {
496: my $cursta = $hash{'diropen_status_'.$uri};
497: $dirs{$uri} = 'open';
498: $hash{'diropen_status_'.$uri} = 'open';
499: if ($cursta eq 'open') {
500: $dirs{$uri} = 'closed';
501: $hash{'diropen_status_'.$uri} = 'closed';
502: }
503: } else {
504: $hash{'diropen_status_'.$uri} = 'open';
505: $dirs{$uri} = 'open';
506: }
507: }
508:
509: my $toplevel;
510: my $indent = 0;
511: $uri = $uri.'/' if $uri !~ /.*\/$/;
512:
513: if ($ENV{'form.dirPointer'} ne 'on') {
514: $hash{'top.level'} = $uri;
515: $toplevel = $uri;
516: } else {
517: $toplevel = $hash{'top.level'};
518: }
519:
520: # -------------------------------- if not at top level, provide an uplink arrow
521: if ($toplevel ne '/res/'){
522: my (@uri_com) = split(/\//,$uri);
523: pop @uri_com;
524: my $upone = join('/',@uri_com);
525: my @list = qw (0);
526: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
527: $indent = 1;
528: }
529:
530: # -------- recursively go through all the directories and output as appropriate
531: &scanDir ($r,$toplevel,$indent,\%hash);
532:
533: # ---------------------------- embed hidden information useful for group import
534: $r->print("<form name='fnum'>");
535: $r->print("<input type='hidden' name='fnum' value='$fnum'></form>");
536:
537: # -------------------------------------------------------------- end the tables
538: $r->print('</table>');
539: $r->print('</td></tr></table>');
540:
541: # --------------------------------------------------- end the output and return
542: $r->print('</body></html>'."\n");
543: }
544: if(! $c->aborted()) {
545: # write back into the temporary file
546: my %dbfile;
547: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
548: while (my($key,$value) = each(%hash)) {
549: $dbfile{$key}=$value;
550: }
551: untie(%dbfile);
552: }
553: }
554:
555: return OK;
556: }
557:
558: # ----------------------------------------------- recursive scan of a directory
559: sub scanDir {
560: my ($r,$startdir,$indent,$hashref)=@_;
561: my $c = $r->connection();
562: my ($compuri,$curdir);
563: my $dirptr=16384;
564: my $obs;
565: $indent++;
566: my %dupdirs = %dirs;
567: my @list=&get_list($r,$startdir);
568: foreach my $line (@list) {
569: return if ($c->aborted());
570: #This is a kludge, sorry aboot this
571: my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs)=split(/\&/,$line,15);
572: next if($strip =~ /.*\.meta$/ | $obs eq '1');
573: my (@fileparts) = split(/\./,$strip);
574: if ($hash{'display_attrs_9'} != 1) {
575: if (scalar(@fileparts) >= 3) {
576: my $fext = pop @fileparts;
577: my $ov = pop @fileparts;
578: my $fname = join ('.',@fileparts,$fext);
579: next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
580: }
581: }
582:
583: if ($dom eq 'domain') {
584: # dom list has full path /res/<domain name>/ already
585: $curdir='';
586: $compuri = (split(/\&/,$line))[0];
587: } else {
588: # user, dir & file have name only, i.e., w/o path
589: $compuri = join('',$startdir,$strip,'/');
590: $curdir = $startdir;
591: }
592: my $diropen = 'closed';
593: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/)) {
594: while (my ($key,$val)= each %dupdirs) {
595: if ($key eq $compuri and $val eq "open") {
596: $diropen = "opened";
597: delete($dupdirs{$key});
598: delete($dirs{$key});
599: }
600: }
601: }
602: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
603: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
604: }
605: $indent--;
606: }
607:
608: # --------------- get complete matched list based on the uri (returns an array)
609: sub get_list {
610: my ($r,$uri)=@_;
611: my @list;
612: (my $luri = $uri) =~ s/\//_/g;
613: if ($ENV{'form.updatedisplay'}) {
614: foreach (keys %hash) {
615: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
616: }
617: }
618:
619: if ($hash{'dirlist_files_'.$luri}) {
620: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
621: } else {
622: @list = &Apache::lonnet::dirlist($uri);
623: $hash{'dirlist_files_'.$luri} = join("\n",@list);
624: }
625: @list=&match_ext($r,@list);
626: return @list;
627: }
628:
629: sub initdebug {
630: return <<ENDJS;
631: <script>
632: var debugging = true;
633: if (debugging) {
634: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
635: }
636:
637: function output(text) {
638: if (debugging) {
639: debuggingWindow.document.writeln(text);
640: }
641: }
642: output("<html><head><title>Debugging Window</title></head><body><pre>");
643: </script>
644: ENDJS
645: }
646:
647: sub writedebug {
648: my $text = shift;
649: return "<script>output('$text');</script>";
650: }
651:
652: # -------------------- filters out files based on extensions (returns an array)
653: sub match_ext {
654: my ($r,@packlist)=@_;
655: my @trimlist;
656: my $nextline;
657: my @fileext;
658: my $dirptr=16384;
659:
660: foreach my $line (@packlist) {
661: chomp $line;
662: $line =~ s/^\/home\/httpd\/html//;
663: my @unpackline = split (/\&/,$line);
664: next if ($unpackline[0] eq '.');
665: next if ($unpackline[0] eq '..');
666: my @filecom = split (/\./,$unpackline[0]);
667: my $fext = pop(@filecom);
668: my $fnptr = $unpackline[3]&$dirptr;
669: if ($fnptr == 0 and $unpackline[3] ne "") {
670: my $embstyle = &Apache::loncommon::fileembstyle($fext);
671: push @trimlist,$line if (defined($embstyle) &&
672: ($embstyle ne 'hdn' or $fext eq 'meta'));
673: } else {
674: push @trimlist,$line;
675: }
676: }
677: @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
678: return @trimlist;
679: }
680:
681: # ------------------------------- displays one line in appropriate table format
682: sub display_line {
683: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
684: my (@pathfn, $fndir);
685: my $dirptr=16384;
686: my $fileclr="#ffffe6";
687: my $iconpath= $r->dir_config('lonIconsURL') . '/';
688:
689: my @filecom = split (/\&/,$line);
690: my @pathcom = split (/\//,$filecom[0]);
691: my $listname = $pathcom[scalar(@pathcom)-1];
692: my $fnptr = $filecom[3]&$dirptr;
693: my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
694: $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
695:
696: my $tabtag='</td>';
697: my $i=0;
698: while ($i<=8) {
699: $tabtag=join('',$tabtag,"<td> </td>")
700: if $hash{'display_attrs_'.$i} == 1;
701: $i++;
702: }
703:
704: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
705:
706: # display uplink arrow
707: if ($filecom[1] eq 'viewOneUp') {
708: $r->print("<tr valign='$valign' bgcolor=$fileclr>$extrafield");
709: $r->print("<td>\n");
710: $r->print ('<form method="post" name="dirpathUP" action="'.$startdir.
711: '/" '.
712: 'onSubmit="return rep_dirpath(\'UP\','.
713: 'document.forms.fileattr.acts.value)" '.
714: 'enctype="application/x-www-form-urlencoded"'.
715: '>'."\n");
716: $r->print ('<input type=hidden name=openuri value="'.
717: $startdir.'">'."\n");
718: $r->print ('<input type="hidden" name="acts" value="">'."\n");
719: $r->print ('<input src="'.$iconpath.'arrow_up.gif"');
720: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
721: "\n");
722: $r->print(&mt("Up")." $tabtag</tr></form>\n");
723: return OK;
724: }
725: # Do we have permission to look at this?
726:
727: return OK if (!&Apache::lonnet::allowed('bre',$startdir.$filecom[0]));
728:
729: # display domain
730: if ($filecom[1] eq 'domain') {
731: $r->print ('<input type="hidden" name="dirPointer" value="on">'."\n")
732: if ($ENV{'form.dirPointer'} eq "on");
733: $r->print("<tr valign='$valign' bgcolor=$fileclr>$extrafield");
734: $r->print("<td>");
735: &begin_form ($r,$filecom[0]);
736: my $anchor = $filecom[0];
737: $anchor =~ s/\///g;
738: $r->print ('<a name="'.$anchor.'">');
739: $r->print ('<input type="hidden" name="acts" value="">');
740: $r->print ('<input src="'.$iconpath.'folder_pointer_'.
741: $diropen.'.gif"');
742: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
743: "\n");
744: $r->print ('<a href="javascript:gothere(\''.$filecom[0].
745: '\')"><img src="'.$iconpath.'server.gif"');
746: $r->print (' border="0" /></a>'."\n");
747: $r->print (&mt("Domain")." - $listname ");
748: if ($Apache::lonnet::domaindescription{$listname}) {
749: $r->print("(".$Apache::lonnet::domaindescription{$listname}.
750: ")");
751: }
752: $r->print (" $tabtag</tr></form>\n");
753: return OK;
754:
755: # display user directory
756: }
757: if ($filecom[1] eq 'user') {
758: $r->print("<tr valign=$valign bgcolor=$fileclr>$extrafield");
759: $r->print("<td nowrap>\n");
760: my $curdir = $startdir.$filecom[0].'/';
761: my $anchor = $curdir;
762: $anchor =~ s/\///g;
763: &begin_form ($r,$curdir);
764: $r->print ('<a name="'.$anchor.'"><img src="'.$iconpath.
765: 'whitespace1.gif" border="0" />'."\n");
766: $r->print ('<input type="hidden" name="acts" value="">');
767: $r->print ('<input src="'.$iconpath.'folder_pointer_'.$diropen.
768: '.gif"');
769: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
770: "\n");
771: $r->print ('<a href="javascript:gothere(\''.$curdir.'\')"><img src='.
772: $iconpath.'quill.gif border="0" name="'.$msg.
773: '" height="22" /></a>');
774: my $domain=(split(m|/|,$startdir))[2];
775: my $plainname=&Apache::loncommon::plainname($listname,$domain);
776: $r->print ($listname);
777: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
778: $r->print ($tabtag.'</tr></form>'."\n");
779: return OK;
780: }
781:
782: # display file
783: if ($fnptr == 0 and $filecom[3] ne '') {
784: my $filelink = $startdir.$filecom[0];
785: my @file_ext = split (/\./,$listname);
786: my $curfext = $file_ext[-1];
787: if (@Omit) {
788: foreach (@Omit) { return OK if ($curfext eq $_); }
789: }
790: if (@Only) {
791: my $skip = 1;
792: foreach (@Only) { $skip = 0 if ($curfext eq $_); }
793: return OK if ($skip > 0);
794: }
795: # Set the icon for the file
796: my $iconname = &Apache::loncommon::icon($listname);
797: $r->print("<tr valign='$valign' bgcolor=$fileclr><td nowrap>");
798: my $metafile = grep /^\Q$filecom[0]\E\.meta\&/, @list;
799: my $title;
800: if ($ENV{'form.catalogmode'} eq 'interactive') {
801: $title=$listname;
802: $title = &Apache::lonnet::metadata($filelink,'title')
803: if ($metafile == 1);
804: $title=$listname unless $title;
805: my $titleesc=HTML::Entities::encode($title);
806: $titleesc=~s/\'/\\'/; #' (clean up this spare quote)
807: $r->print("<a href=\"javascript:select_data(\'",
808: $titleesc,"','",$filelink,"')\">");
809: $r->print("<img src='",$iconpath,"select.gif' border='0' /></a>".
810: "\n");
811: $r->print("</td><td nowrap>");
812: }
813: elsif ($ENV{'form.catalogmode'} eq 'groupimport') {
814: $title=$listname;
815: #$title = &Apache::lonnet::metadata($filelink,'title')
816: #if ($metafile == 1);
817: $title=$listname unless $title;
818: my $titleesc=&HTML::Entities::encode($title);
819: $r->print("<form name='form$fnum'>\n");
820: $r->print("<input type='checkbox' name='filelink"."' ".
821: "value='$filelink' onClick='".
822: "javascript:queue(\"form$fnum\")' ");
823: if ($hash{'store_'.$filelink}) {
824: $r->print("checked");
825: }
826: $r->print(">\n");
827: $r->print("<input type='hidden' name='title"."' ".
828: "value='$titleesc'>\n");
829: $r->print("</form>\n");
830: $r->print("</td><td nowrap>");
831: $hash{"pre_${fnum}_link"}=$filelink;
832: $hash{"pre_${fnum}_title"}=$titleesc;
833: $fnum++;
834: }
835:
836: if ($indent > 0 and $indent < 11) {
837: $r->print("<img src=",$iconpath,"whitespace",$indent,
838: ".gif border='0' />\n");
839: } elsif ($indent >0) {
840: my $ten = int($indent/10.);
841: my $rem = $indent%10.0;
842: my $count = 0;
843: while ($count < $ten) {
844: $r->print("<img src=",$iconpath,
845: "whitespace10.gif border='0' />\n");
846: $count++;
847: }
848: $r->print("<img src=",$iconpath,"whitespace",$rem,
849: ".gif border='0' />\n") if $rem > 0;
850: }
851:
852: $r->print("<img src='$iconname' border='0' />\n");
853: $r->print (" <a href=\"javascript:openWindow('".$filelink.
854: "', 'previewfile', '450', '500', 'no', 'yes','yes')\";".
855: " TARGET=_self>$listname</a> ");
856:
857: $r->print (" (<a href=\"javascript:openWindow('".$filelink.
858: ".meta', 'metadatafile', '500', '550', 'no', 'yes','no')\"; ".
859: "TARGET=_self>metadata</a>) ") if ($metafile == 1);
860:
861: $r->print("</td>\n");
862: if ($hash{'display_attrs_0'} == 1) {
863: my $title = &Apache::lonnet::gettitle($filelink,'title')
864: if ($metafile == 1);
865: $r->print('<td> '.($title eq '' ? ' ' : $title).
866: ' </td>'."\n");
867: }
868: $r->print('<td align=right> ',
869: $filecom[8]," </td>\n")
870: if $hash{'display_attrs_1'} == 1;
871: $r->print('<td> '.
872: (localtime($filecom[9]))." </td>\n")
873: if $hash{'display_attrs_2'} == 1;
874: $r->print('<td> '.
875: (localtime($filecom[10]))." </td>\n")
876: if $hash{'display_attrs_3'} == 1;
877:
878: if ($hash{'display_attrs_4'} == 1) {
879: my $author = &Apache::lonnet::metadata($filelink,'author')
880: if ($metafile == 1);
881: $r->print('<td> '.($author eq '' ? ' ' : $author).
882: " </td>\n");
883: }
884: if ($hash{'display_attrs_5'} == 1) {
885: my $keywords = &Apache::lonnet::metadata($filelink,'keywords')
886: if ($metafile == 1);
887: # $keywords = ' ' if (!$keywords);
888: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
889: " </td>\n");
890: }
891: if ($hash{'display_attrs_6'} == 1) {
892: my $lang = &Apache::lonnet::metadata($filelink,'language')
893: if ($metafile == 1);
894: $lang = &Apache::loncommon::languagedescription($lang);
895: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
896: " </td>\n");
897: }
898: if ($hash{'display_attrs_7'} == 1) {
899: my $output='';
900: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
901: if ($embstyle eq 'ssi') {
902: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
903: '.tmp';
904: if ((!$ENV{'form.updatedisplay'}) &&
905: (-e $cache)) {
906: open(FH,$cache);
907: $output=join("\n",<FH>);
908: close(FH);
909: } else {
910: $output=&Apache::lonnet::ssi_body($filelink);
911: open(FH,">$cache");
912: print FH $output;
913: close(FH);
914: }
915: $output='<font size="-2">'.$output.'</font>';
916: } elsif ($embstyle eq 'img') {
917: $output='<img src="'.$filelink.'" />';
918: } elsif ($filelink=~/^\/res\/(\w+)\/(\w+)\//) {
919: $output='<img src="http://'.
920: $Apache::lonnet::hostname{&Apache::lonnet::homeserver($2,$1)}.
921: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
922: }
923: $r->print('<td> '.($output eq '' ? ' ':$output).
924: " </td>\n");
925: }
926: if ($hash{'display_attrs_8'} == 1) {
927: my (%stat) = &Apache::lonmeta::dynamicmeta($filelink) if ($metafile == 1);
928: my $stat = (exists($stat{'course'}) ? $stat{'course'} : '').
929: ((exists($stat{'course'}) || exists($stat{'count'})) ? '/' : '').
930: (exists($stat{'count'}) ? $stat{'count'} : '');
931: $r->print('<td align=center> '.($stat eq '' ? ' ' : $stat).
932: ' </td>'."\n");
933: }
934:
935: $r->print("</tr>\n");
936: }
937:
938: # -- display directory
939: if ($fnptr == $dirptr) {
940: my $curdir = $startdir.$filecom[0].'/';
941: my $anchor = $curdir;
942: $anchor =~ s/\///g;
943: $r->print("<tr bgcolor=$fileclr>$extrafield<td valign=$valign>");
944: &begin_form ($r,$curdir);
945: my $indentm1 = $indent-1;
946: if ($indentm1 < 11 and $indentm1 > 0) {
947: $r->print("<img src=",$iconpath,"whitespace",$indentm1,
948: ".gif border='0' />\n");
949: } else {
950: my $ten = int($indentm1/10.);
951: my $rem = $indentm1%10.0;
952: my $count = 0;
953: while ($count < $ten) {
954: $r->print ("<img src=",$iconpath
955: ,"whitespace10.gif border='0' />\n");
956: $count++;
957: }
958: $r->print ("<img src=",$iconpath,"whitespace",$rem,
959: ".gif border='0' />\n") if $rem > 0;
960: }
961: $r->print ('<input type="hidden" name="acts" value="">');
962: $r->print ('<a name="'.$anchor.'"><input src="'.$iconpath.
963: 'folder_pointer_'.$diropen.'.gif"');
964: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
965: "\n");
966: $r->print ('<a href="javascript:gothere(\''.$curdir.'\')"><img src="'.
967: $iconpath.'folder_'.$diropen.'.gif" border="0" /></a>'.
968: "\n");
969: $r->print ("$listname</td>\n");
970: # Attributes
971: my $filelink = $startdir.$filecom[0].'/default';
972:
973: if ($hash{'display_attrs_0'} == 1) {
974: my $title = &Apache::lonnet::gettitle($filelink,'title');
975: $r->print('<td> '.($title eq '' ? ' ' : $title).
976: ' </td>'."\n");
977: }
978: $r->print('<td align=right> ',
979: $filecom[8]," </td>\n")
980: if $hash{'display_attrs_1'} == 1;
981: $r->print('<td> '.
982: (localtime($filecom[9]))." </td>\n")
983: if $hash{'display_attrs_2'} == 1;
984: $r->print('<td> '.
985: (localtime($filecom[10]))." </td>\n")
986: if $hash{'display_attrs_3'} == 1;
987:
988: if ($hash{'display_attrs_4'} == 1) {
989: my $author = &Apache::lonnet::metadata($filelink,'author');
990: $r->print('<td> '.($author eq '' ? ' ' : $author).
991: " </td>\n");
992: }
993: if ($hash{'display_attrs_5'} == 1) {
994: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
995: # $keywords = ' ' if (!$keywords);
996: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
997: " </td>\n");
998: }
999: if ($hash{'display_attrs_6'} == 1) {
1000: my $lang = &Apache::lonnet::metadata($filelink,'language');
1001: $lang = &Apache::loncommon::languagedescription($lang);
1002: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1003: " </td>\n");
1004: }
1005: if ($hash{'display_attrs_7'} == 1) {
1006: $r->print('<td> </td>');
1007: }
1008: if ($hash{'display_attrs_8'} == 1) {
1009: $r->print('<td> </td>');
1010: }
1011: $r->print('</form></tr>');
1012: }
1013:
1014: }
1015:
1016: # ------------------- prints the beginning of a form for directory or file link
1017: sub begin_form {
1018: my ($r,$uri) = @_;
1019: my $anchor = $uri;
1020: $anchor =~ s/\///g;
1021: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1022: '#'.$anchor.
1023: '" onSubmit="return rep_dirpath(\''.$dnum.'\''.
1024: ',document.forms.fileattr.acts.value)" '.
1025: 'enctype="application/x-www-form-urlencoded">'."\n");
1026: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'">'.
1027: "\n");
1028: $r->print ('<input type="hidden" name="dirPointer" value="on">'."\n");
1029: $dnum++;
1030: }
1031:
1032: # --------- settings whenever the user causes the indexer window to be launched
1033: sub start_fresh_session {
1034: delete $hash{'form.catalogmode'};
1035: delete $hash{'form.mode'};
1036: delete $hash{'form.form'};
1037: delete $hash{'form.element'};
1038: delete $hash{'form.omit'};
1039: delete $hash{'form.only'};
1040: foreach (keys %hash) {
1041: delete $hash{$_} if (/^(pre_|store)/);
1042: }
1043: }
1044:
1045: # ------------------------------------------------------------------- setvalues
1046: sub setvalues {
1047: # setvalues is used in registerurl to synchronize the database
1048: # hash and environment hashes
1049: my ($H1,$h1key,$H2,$h2key) =@_;
1050: #
1051: if (exists $H2->{$h2key}) {
1052: $H1->{$h1key} = $H2->{$h2key};
1053: } elsif (exists $H1->{$h1key}) {
1054: $H2->{$h2key} = $H1->{$h1key};
1055: }
1056: }
1057:
1058: 1;
1059:
1060: sub cleanup {
1061: if (tied(%hash)){
1062: &Apache::lonnet::logthis('Cleanup indexer: hash');
1063: }
1064: }
1065:
1066: =head1 NAME
1067:
1068: Apache::lonindexer - mod_perl module for cross server filesystem browsing
1069:
1070: =head1 SYNOPSIS
1071:
1072: Invoked by /etc/httpd/conf/srm.conf:
1073:
1074: <LocationMatch "^/res.*/$">
1075: SetHandler perl-script
1076: PerlHandler Apache::lonindexer
1077: </LocationMatch>
1078:
1079: =head1 INTRODUCTION
1080:
1081: This module enables a scheme of browsing across a cross server.
1082:
1083: This is part of the LearningOnline Network with CAPA project
1084: described at http://www.lon-capa.org.
1085:
1086: =head1 BEGIN SUBROUTINE
1087:
1088: This routine is only run once after compilation.
1089:
1090: =over 4
1091:
1092: =item *
1093:
1094: Initializes %language hash table.
1095:
1096: =back
1097:
1098: =head1 HANDLER SUBROUTINE
1099:
1100: This routine is called by Apache and mod_perl.
1101:
1102: =over 4
1103:
1104: =item *
1105:
1106: read in machine configuration variables
1107:
1108: =item *
1109:
1110: see if called from an interactive mode
1111:
1112: =item *
1113:
1114: refresh environment with user database values (in %hash)
1115:
1116: =item *
1117:
1118: define extra fields and buttons in case of special mode
1119:
1120: =item *
1121:
1122: set catalogmodefunctions to have extra needed javascript functionality
1123:
1124: =item *
1125:
1126: print header
1127:
1128: =item *
1129:
1130: evaluate actions from previous page (both cumulatively and chronologically)
1131:
1132: =item *
1133:
1134: output title
1135:
1136: =item *
1137:
1138: get state of file attributes to be showing
1139:
1140: =item *
1141:
1142: output state of file attributes to be showing
1143:
1144: =item *
1145:
1146: output starting row to the indexed file/directory hierarchy
1147:
1148: =item *
1149:
1150: read in what directories have previously been set to "open"
1151:
1152: =item *
1153:
1154: if not at top level, provide an uplink arrow
1155:
1156: =item *
1157:
1158: recursively go through all the directories and output as appropriate
1159:
1160: =item *
1161:
1162: information useful for group import
1163:
1164: =item *
1165:
1166: end the tables
1167:
1168: =item *
1169:
1170: end the output and return
1171:
1172: =back
1173:
1174: =head1 OTHER SUBROUTINES
1175:
1176: =over 4
1177:
1178: =item *
1179:
1180: scanDir - recursive scan of a directory
1181:
1182: =item *
1183:
1184: get_list - get complete matched list based on the uri (returns an array)
1185:
1186: =item *
1187:
1188: match_ext - filters out files based on extensions (returns an array)
1189:
1190: =item *
1191:
1192: display_line - displays one line in appropriate table format
1193:
1194: =item *
1195:
1196: begin_form - prints the beginning of a form for directory or file link
1197:
1198: =item *
1199:
1200: start_fresh_session - settings whenever the user causes the indexer window
1201: to be launched
1202:
1203: =back
1204:
1205: =cut
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