1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: # (Login Screen
4: # 5/21/99,5/22,5/25,5/26,5/31,6/2,6/10,7/12,7/14 Gerd Kortemeyer)
5: # 11/23 Gerd Kortemeyer
6: # 07/20-08/04 H.K. Ng
7: #
8: # 05/9-05/19/2001 H. K. Ng
9: # 05/21/2001 H. K. Ng
10: # 05/23/2001 H. K. Ng
11: # 05/31/2001 Scott Harrison
12: # 06/01/2001 Scott Harrison
13: # 06/02/2001 Scott Harrison
14:
15: package Apache::lonindexer;
16:
17: use strict;
18: use Apache::lonnet();
19: use Apache::Constants qw(:common);
20: use Apache::File;
21: use GDBM_File;
22:
23: my %hash;
24: my %dirs;
25: my %language;
26: my $hidden;
27: my $extrafield;
28: my $fnum;
29: sub BEGIN {
30: my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.'/language.tab');
31: map {
32: $_=~/(\w+)\s+([\w\s\-]+)/;
33: $language{$1}=$2;
34: } <$fh>;
35: }
36:
37: sub handler {
38: my $r = shift;
39: $r->content_type('text/html');
40: $r->send_http_header;
41: return OK if $r->header_only;
42: $fnum=0;
43: my $iconpath= $r->dir_config('lonIconsURL');
44: my $domain = $r->dir_config('lonDefDomain');
45: my $role = $r->dir_config('lonRole');
46: my $loadlim = $r->dir_config('lonLoadLim');
47: my $servadm = $r->dir_config('lonAdmEMail');
48: my $sysadm = $r->dir_config('lonSysEMail');
49: my $lonhost = $r->dir_config('lonHostID');
50: my $tabdir = $r->dir_config('lonTabDir');
51:
52: my $iconpath='/res/adm/pages/indexericons/';
53: my $fileclr='#ffffe6';
54: # -------------------------------------- see if called from an interactive mode
55: map {
56: my ($name, $value) = split(/=/,$_);
57: $value =~ tr/+/ /;
58: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
59: if ($name eq 'catalogmode') {
60: $ENV{'form.'.$name}=$value;
61: }
62: } (split(/&/,$ENV{'QUERY_STRING'}));
63:
64: $hidden=''; my $closebutton='';
65: my $groupimportbutton='';
66: my $colspan='';
67: if ($ENV{'form.catalogmode'} eq 'interactive') {
68: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
69: '<a name="$anchor"><img src="'.$iconpath.'whitespace1.gif"'.
70: ' border="0"></td>';
71: $colspan=" colspan='2' ";
72: $hidden=<<END;
73: <input type='hidden' name='catalogmode' value='interactive'>
74: END
75: $closebutton=<<END;
76: <input type="button" name="close" value='CLOSE' onClick="self.close()">
77: END
78: }
79: elsif ($ENV{'form.catalogmode'} eq 'groupimport') {
80: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
81: '<a name="$anchor"><img src="'.$iconpath.'whitespace1.gif"'.
82: ' border="0"></td>';
83: $colspan=" colspan='2' ";
84: $hidden=<<END;
85: <input type='hidden' name='catalogmode' value='groupimport'>
86: END
87: $closebutton=<<END;
88: <input type="button" name="close" value='CLOSE' onClick="self.close()">
89: END
90: $groupimportbutton=<<END;
91: <input type="button" name="groupimport" value='GROUP IMPORT' onClick="javascript:select_group()">
92: END
93: }
94:
95: my $catalogmodefunctions='';
96: if ($ENV{'form.catalogmode'} eq 'interactive' or
97: $ENV{'form.catalogmode'} eq 'groupimport') {
98: $catalogmodefunctions=<<END;
99: function select_data(title,url) {
100: changeTitle(title);
101: changeURL(url);
102: self.close();
103: }
104: function save_group() {
105: for (var num=0; num<document.forms.fnum.fnum.value; num++) {
106: if (eval("document.forms.form"+num+".filelink.checked")) {
107: alert(eval("document.forms.form"+num+".title.value")+
108: eval("document.forms.form"+num+".filelink.value"));
109: }
110: }
111: }
112: function select_group() {
113: var linkflag=false;
114: for (var num=0; num<document.forms.fnum.fnum.value; num++) {
115: if (eval("document.forms.form"+num+".filelink.checked")) {
116: // alert(eval("document.forms.form"+num+".title.value")+
117: // eval("document.forms.form"+num+".filelink.value"));
118: insertRowInLastRow();
119: placeResourceInLastRow(
120: eval("document.forms.form"+num+".title.value"),
121: eval("document.forms.form"+num+".filelink.value"),
122: linkflag
123: );
124: linkflag=true;
125: }
126: }
127: opener.editmode=0;
128: opener.notclear=0;
129: opener.linkmode=0;
130: opener.infoclear();
131: opener.draw();
132: }
133: function insertRowInLastRow() {
134: opener.insertrow(opener.maxrow);
135: opener.addobj(opener.maxrow,'e&2');
136: }
137: function placeResourceInLastRow (title,url,linkflag) {
138: opener.newresource(opener.maxrow,2,opener.escape(title),opener.escape(url),'false','normal');
139: opener.save();
140: opener.mostrecent=opener.obj.length-1;
141: if (linkflag) {
142: opener.joinres(opener.linkmode,opener.mostrecent,0);
143: }
144: opener.linkmode=opener.mostrecent;
145: }
146: function changeTitle(val) {
147: if (opener.inf.document.forms.resinfo.elements.t) {
148: opener.inf.document.forms.resinfo.elements.t.value=val;
149: }
150: }
151: function changeURL(val) {
152: if (opener.inf.document.forms.resinfo.elements.u) {
153: opener.inf.document.forms.resinfo.elements.u.value=val;
154: }
155: }
156: END
157: }
158:
159: # ---------------------------------------------------------------- Print Header
160: $r->print(<<ENDHEADER);
161: <html>
162: <head>
163: <title>The LearningOnline Network With CAPA Directory Browser</title>
164:
165: <SCRIPT language="javascript">
166: $catalogmodefunctions
167: function openWindow(url, wdwName, w, h, toolbar,scrollbar) {
168: var options = "width=" + w + ",height=" + h + ",";
169: options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
170: options += "menubar=no,toolbar="+toolbar+",location=no,directories=no";
171: var newWin = window.open(url, wdwName, options);
172: newWin.focus();
173: }
174: </SCRIPT>
175:
176: </head>
177: <body bgcolor="#FFFFFF">
178: ENDHEADER
179:
180: my $line;
181: my (@attrchk,@openpath);
182: my $uri=$r->uri;
183:
184: $r->print("<h2><font color=\"\#888888\">The LearningOnline With CAPA Network Directory Browser</font></h2>\n");
185:
186: my $diropen = "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_indexer.db";
187:
188: if (tie(%hash,'GDBM_File',$diropen,&GDBM_WRCREAT,0640)) {
189:
190: if ($ENV{'form.attrs'} ne "") {
191: for (my $i=0; $i<=5; $i++) {
192: delete $hash{'display_attrs_'.$i};
193: if ($ENV{'form.attr'.$i} == 1) {
194: $attrchk[$i] = "checked";
195: $hash{'display_attrs_'.$i} = 1;
196: }
197: }
198: } else {
199: for (my $i=0; $i<=5; $i++) {
200: $attrchk[$i] = "checked" if $hash{'display_attrs_'.$i} == 1;
201: }
202: }
203: $r->print(<<END);
204: <b><font color="#666666">Display file attributes</font></b><br>
205: <form method="post" name="fileattr" action="$uri" enctype="application/x-www-form-urlencoded">
206: <table border=0><tr>
207: <td><input type=checkbox name=attr0 value="1" $attrchk[0]> Size</td>
208: <td><input type=checkbox name=attr1 value="1" $attrchk[1]> Last access</td>
209: <td><input type=checkbox name=attr2 value="1" $attrchk[2]> Last modified</td>
210: </tr><tr>
211: <td><input type=checkbox name=attr3 value="1" $attrchk[3]> Author</td>
212: <td><input type=checkbox name=attr4 value="1" $attrchk[4]> Keywords</td>
213: <td><input type=checkbox name=attr5 value="1" $attrchk[5]> Language</td>
214: </tr></table>
215: <input type="submit" name="attrs" value="Review">
216: <input type="submit" name="attrs" value="Refresh">
217: $hidden
218: $closebutton
219: $groupimportbutton
220: </form>
221: END
222:
223: my $titleclr="#ddffff";
224: $r->print("<table border=0><tr><td bgcolor=#eeeeee>\n");
225: $r->print("<table border=0><tr>\n");
226: $r->print("<td $colspan bgcolor=$titleclr><b>Name</b></td>\n");
227: $r->print("<td bgcolor=$titleclr align=right><b>Size (bytes) </b></td>\n") if ($hash{'display_attrs_0'} == 1);
228: $r->print("<td bgcolor=$titleclr><b>Last accessed</b></td>\n") if ($hash{'display_attrs_1'} == 1);
229: $r->print("<td bgcolor=$titleclr><b>Last modified</b></td>\n") if ($hash{'display_attrs_2'} == 1);
230: $r->print("<td bgcolor=$titleclr><b>Author(s)</b></td>\n") if ($hash{'display_attrs_3'} == 1);
231: $r->print("<td bgcolor=$titleclr><b>Keywords</b></td>\n") if ($hash{'display_attrs_4'} == 1);
232: $r->print("<td bgcolor=$titleclr><b>Language</b></td>\n") if ($hash{'display_attrs_5'} == 1);
233: $r->print("</tr>");
234:
235: map {
236: if ($_ =~ /^diropen_status_/) {
237: my $key = $_;
238: $key =~ s/^diropen_status_//;
239: $dirs{$key} = $hash{$_};
240: }
241: } keys %hash;
242:
243: if ($ENV{'form.openuri'}) { # take care of review and refresh options
244: my $uri=$ENV{'form.openuri'};
245: if (exists($hash{'diropen_status_'.$uri})) {
246: my $cursta = $hash{'diropen_status_'.$uri};
247: $dirs{$uri} = 'open';
248: $hash{'diropen_status_'.$uri} = 'open';
249: if ($cursta eq 'open') {
250: $dirs{$uri} = 'closed';
251: $hash{'diropen_status_'.$uri} = 'closed';
252: }
253: } else {
254: $hash{'diropen_status_'.$uri} = 'open';
255: $dirs{$uri} = 'open';
256: }
257: }
258:
259: my $toplevel = "/res/";
260: my $indent = 0;
261: &scanDir ($r,$toplevel,$indent);
262:
263: $r->print("<form name='fnum'>");
264: $r->print("<input type='hidden' name='fnum' value='$fnum'></form>");
265: $r->print("</table>");
266: $r->print("</td></tr></table>");
267: $r->print("</body></html>\n");
268: untie(%hash);
269: } else {
270: $r->print("Unable to tie hash to db file");
271: }
272: return OK;
273: }
274:
275:
276: # --------------------recursive scan of a directory
277: sub scanDir {
278: my ($r,$startdir,$indent)=@_;
279: my ($compuri,$curdir);
280: my $dirptr=16384;
281: $indent++;
282:
283: my %dupdirs = %dirs;
284: my @list=&get_list($r,$startdir);
285: foreach my $line (@list) {
286: my ($strip,$dom,$foo,$testdir,$foo)=split(/\&/,$line,5);
287: next if $strip =~ /.*\.meta$/;
288: if ($dom eq "domain") {
289: $compuri = join('',$strip,"/"); # domain list has /res/<domain name>
290: $curdir = $compuri;
291: } else {
292: $compuri = join('',$startdir,$strip,"/"); # user, dir & file having name only, i.e., w/o path
293: $curdir = $startdir;
294: }
295: my $diropen = 0;
296: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/)) {
297: while (my ($key,$val)= each %dupdirs) {
298: if ($key eq $compuri and $val eq "open") {
299: $diropen = 1;
300: delete $dupdirs{key},$dirs{$key};
301: }
302: }
303: }
304: &display_line($r,$diropen,$line,$indent,$curdir,@list);
305: &scanDir ($r,$compuri,$indent) if $diropen == 1;
306: }
307: $indent--;
308: }
309:
310: # ----------------- get complete matched list based on the uri ------
311: sub get_list {
312: my ($r,$uri)=@_;
313: my @list;
314: my $luri = $uri;
315: $luri =~ s/\//_/g;
316:
317: if ($ENV{'form.attrs'} eq "Refresh") {
318: map {
319: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
320: } keys %hash;
321: }
322:
323: if ($hash{'dirlist_files'.$luri}) {
324: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
325: } else {
326: @list = &Apache::lonnet::dirlist($uri);
327: $hash{'dirlist_files_'.$luri} = join('\n',@list);
328: }
329: return @list=&match_ext($r,@list);
330: }
331:
332: #-------------------------- filters out files based on extensions
333: sub match_ext {
334: my ($r,@packlist)=@_;
335: my @trimlist;
336: my $nextline;
337: my @fileext;
338: my $dirptr=16384;
339:
340: my $tabdir = $r->dir_config('lonTabDir');
341: my $fn = $tabdir."/filetypes.tab";
342: if (-e $fn) {
343: my $FH=Apache::File->new($fn);
344: my @content=<$FH>;
345: foreach my $line (@content) {
346: (my $ext,my $foo) = split /\s+/,$line;
347: push @fileext,$ext;
348: }
349: }
350: foreach my $line (@packlist) {
351: chomp $line;
352: $line =~ s/^\/home\/httpd\/html//;
353: my @unpackline = split (/\&/,$line);
354: next if ($unpackline[0] eq ".");
355: next if ($unpackline[0] eq "..");
356: my @filecom = split (/\./,$unpackline[0]);
357: my $fext = pop(@filecom);
358: my $fnptr = $unpackline[3]&$dirptr;
359: if ($fnptr == 0 and $unpackline[3] ne "") {
360: foreach my $nextline (@fileext) {
361: push @trimlist,$line if $nextline eq $fext;
362: }
363: } else {
364: push @trimlist,$line;
365: }
366: }
367: @trimlist = sort (@trimlist);
368: return @trimlist;
369: }
370:
371: #------------------- displays one line in appropriate table format
372: sub display_line{
373: my ($r,$diropen,$line,$indent,$startdir,@list)=@_;
374: my (@pathfn, $fndir, $fnptr);
375: my $dirptr=16384;
376: my $fileclr="#ffffe6";
377: my $iconpath="/res/adm/pages/indexericons/";
378:
379: my @filecom = split (/\&/,$line);
380: my @pathcom = split (/\//,$filecom[0]);
381: my $listname = $pathcom[scalar(@pathcom)-1];
382: my $fnptr = $filecom[3]&$dirptr;
383: my $msg = 'View '.$filecom[0].' resources';
384: $msg = 'Close '.$filecom[0].' directory' if $diropen == 1;
385:
386: my $tabtag="</td>";
387: my $i=0;
388:
389: while ($i<=5) {
390: # my $key="form.attr".$i;
391: # $tabtag=join('',$tabtag,"<td bgcolor=",$fileclr,"> </td>") if $ENV{$key} == 1;
392: $tabtag=join('',$tabtag,"<td bgcolor=",$fileclr,"> </td>") if $hash{'display_attrs_'.$i} == 1;
393: $i++;
394: }
395: if ($filecom[1] eq "domain") {
396: $r->print("<tr>$extrafield");
397: $r->print("<td bgcolor=$fileclr valign=bottom>");
398: &begin_form ($r,$filecom[0].'/');
399: my $anchor = $filecom[0].'/';
400: $anchor =~ s/\///g;
401: $r->print ("<a name=\"".$anchor."\">\n<input src=\"".$iconpath."comp.blue.gif\"");
402: $r->print (" name=\"$msg\" height=\"22\" type=\"image\" border=\"0\">\n");
403: $r->print("Domain - $listname $tabtag</tr></form>\n");
404: return OK;
405: }
406: if ($filecom[1] eq "user") {
407: $r->print("<tr>$extrafield");
408: $r->print("<td bgcolor=$fileclr valign=bottom>\n");
409: my $curdir = $startdir.$filecom[0].'/';
410: &begin_form ($r,$curdir);
411: my $anchor = $curdir;
412: $anchor =~ s/\///g;
413: # $r->print ("<a name=\"$anchor\">\n<img src=",$iconpath,"white_space_20_22.gif border=0>\n");
414: $r->print ("<a name=\"$anchor\">\n<img src=",$iconpath,"whitespace1.gif border=0>\n");
415: $r->print ("<input src=\"$iconpath");
416: $r->print ("folder_pointer_closed.gif\"") if $diropen == 0;
417: $r->print ("folder_pointer_opened.gif\"") if $diropen == 1;
418: $r->print (" name=\"$msg\" height=\"22\" type=\"image\" border=\"0\">\n");
419: $r->print ("<img src=",$iconpath,"quill.gif border=0>\n");
420: $r->print ("$listname $tabtag</tr></form>\n");
421: return OK;
422: }
423: # display file
424: if ($fnptr == 0 and $filecom[3] ne "") {
425: my @file_ext = split (/\./,$listname);
426: my $curfext = $file_ext[scalar(@file_ext)-1];
427: my $filelink = $startdir.$filecom[0];
428: $r->print("<tr><td nowrap valign='bottom' bgcolor=$fileclr>");
429: my $metafile = grep /^$filecom[0]\.meta\&/, @list;
430: my $title;
431: if ($ENV{'form.catalogmode'} eq 'interactive') {
432: $title=$listname;
433: $title = &Apache::lonnet::metadata($filelink,'title')
434: if ($metafile == 1);
435: $title=$listname unless $title;
436: $r->print("<a href='javascript:select_data(\"",
437: $title,'","',$filelink,"\")'>");
438: $r->print("<img src='",$iconpath,"select.gif' border=0></a>\n");
439: $r->print("</td><td valign='bottom' nowrap bgcolor=$fileclr>");
440: }
441: elsif ($ENV{'form.catalogmode'} eq 'groupimport') {
442: $title=$listname;
443: $title = &Apache::lonnet::metadata($filelink,'title')
444: if ($metafile == 1);
445: $title=$listname unless $title;
446: $r->print("<form name='form$fnum'>\n");
447: $r->print("<input type='checkbox' name='filelink"."' ".
448: "value='$filelink'>\n");
449: $r->print("<input type='hidden' name='title"."' ".
450: "value='$title'>\n");
451: $r->print("</form>\n");
452: $r->print("</td><td valign='bottom' nowrap bgcolor=$fileclr>");
453: $fnum++;
454: }
455:
456: if ($indent < 11) {
457: $r->print("<img src=",$iconpath,"whitespace",$indent,".gif border=0>\n");
458: } else {
459: my $ten = int($indent/10.);
460: my $rem = $indent%10.0;
461: my $count = 0;
462: while ($count < $ten) {
463: $r->print("<img src=",$iconpath,"whitespace10.gif border=0>\n");
464: $count++;
465: }
466: $r->print("<img src=",$iconpath,"whitespace",$rem,".gif border=0>\n") if $rem > 0;
467: }
468:
469: $r->print("<img src=$iconpath$curfext.gif border=0>\n");
470: $r->print(" <a href=$filelink target='_blank'>",$listname,"</a>\n");
471:
472: $r->print (" (<a href=\"javascript:openWindow('".$filelink.".meta', 'metadatafile', '400', '450', 'no', 'yes')\"; TARGET=_self>metadata</a>) ") if ($metafile == 1);
473:
474: $r->print("</td>\n");
475: # $r->print("<td bgcolor=$fileclr align=right valign=bottom> ",$filecom[8]," </td>\n") if $ENV{'form.attr0'} == 1;
476: $r->print("<td bgcolor=$fileclr align=right valign=bottom> ",$filecom[8]," </td>\n") if $hash{'display_attrs_0'} == 1;
477: $r->print("<td bgcolor=$fileclr valign=bottom> ".(localtime($filecom[9]))." </td>\n") if $hash{'display_attrs_1'} == 1;
478: $r->print("<td bgcolor=$fileclr valign=bottom> ".(localtime($filecom[10]))." </td>\n") if $hash{'display_attrs_2'} == 1;
479:
480: if ($hash{'display_attrs_3'} == 1) {
481: my $author = &Apache::lonnet::metadata($filelink,'author') if ($metafile == 1);
482: $author = ' ' if (!$author);
483: $r->print("<td bgcolor=$fileclr valign=bottom> ".$author." </td>\n");
484: }
485: if ($hash{'display_attrs_4'} == 1) {
486: my $keywords = &Apache::lonnet::metadata($filelink,'keywords') if ($metafile == 1);
487: $keywords = ' ' if (!$keywords);
488: $r->print("<td bgcolor=$fileclr valign=bottom> ".$keywords." </td>\n");
489: }
490: if ($hash{'display_attrs_5'} == 1) {
491: my $lang = &Apache::lonnet::metadata($filelink,'language') if ($metafile == 1);
492: $lang = $language{$lang};
493: $lang = ' ' if (!$lang);
494: $r->print("<td bgcolor=$fileclr valign=bottom> ".$lang." </td>\n");
495: }
496: $r->print("</tr>\n");
497: }
498: # -- display directory
499: if ($fnptr == $dirptr) {
500: my @file_ext = split (/\./,$listname);
501: my $curfext = $file_ext[scalar(@file_ext)-1];
502: my $curdir = $startdir.$filecom[0].'/';
503: my $anchor = $curdir;
504: $anchor =~ s/\///g;
505: $r->print("<tr>$extrafield<td bgcolor=$fileclr valign=bottom>");
506: &begin_form ($r,$curdir);
507: my $indentm1 = $indent-1;
508: if ($indentm1 < 11) {
509: $r->print("<img src=",$iconpath,"whitespace",$indentm1,".gif border=0>\n");
510: } else {
511: my $ten = int($indentm1/10.);
512: my $rem = $indentm1%10.0;
513: my $count = 0;
514: while ($count < $ten) {
515: $r->print("<img src=",$iconpath,"whitespace10.gif border=0>\n");
516: $count++;
517: }
518: $r->print("<img src=",$iconpath,"whitespace",$rem,".gif border=0>\n") if $rem > 0;
519: }
520: $r->print ("<a name=\"$anchor\">\n<input src=\"$iconpath");
521: $r->print ("folder_pointer_closed.gif\"") if $diropen == 0;
522: $r->print ("folder_pointer_opened.gif\"") if $diropen == 1;
523: $r->print (" name=\"$msg\" height=\"22\" type=\"image\" border=\"0\">\n");
524: $r->print("<img src=",$iconpath,"folder_closed.gif border=0>\n") if $diropen == 0;
525: $r->print("<img src=",$iconpath,"folder_opened.gif border=0>\n") if $diropen == 1;
526: $r->print("$listname $tabtag</tr></form>\n");
527: }
528:
529: }
530:
531: #---------------------prints the beginning of a form for directory or file link
532: sub begin_form {
533: my ($r,$uri) = @_;
534: my $anchor = $uri;
535: $anchor =~ s/\///g;
536: $r->print ("<form method=\"post\" name=\"dirpath\" action=\"/res/\#$anchor\" enctype=\"application/x-www-form-urlencoded\">\n");
537: $r->print ("$hidden<input type=hidden name=openuri value=\"$uri\">\n");
538:
539: # for (my $i=0; $i<=5; $i++) {
540: # $r->print ("<input type=hidden name=attr$i value=\"1\">\n") if $ENV{'form.attr'.$i} == 1;
541: # }
542: }
543:
544: 1;
545: __END__
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