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: # 06/15/2001 Scott Harrison
15:
16: package Apache::lonindexer;
17:
18: use strict;
19: use Apache::lonnet();
20: use Apache::Constants qw(:common);
21: use Apache::File;
22: use GDBM_File;
23:
24: my %hash;
25: my %dirs;
26: my %language;
27: my $hidden;
28: my $extrafield;
29: my $fnum;
30: sub BEGIN {
31: my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.'/language.tab');
32: map {
33: $_=~/(\w+)\s+([\w\s\-]+)/;
34: $language{$1}=$2;
35: } <$fh>;
36: }
37:
38: sub handler {
39: my $r = shift;
40: $r->content_type('text/html');
41: $r->send_http_header;
42: return OK if $r->header_only;
43: $fnum=0;
44: my $iconpath= $r->dir_config('lonIconsURL') . "/";
45: my $domain = $r->dir_config('lonDefDomain');
46: my $role = $r->dir_config('lonRole');
47: my $loadlim = $r->dir_config('lonLoadLim');
48: my $servadm = $r->dir_config('lonAdmEMail');
49: my $sysadm = $r->dir_config('lonSysEMail');
50: my $lonhost = $r->dir_config('lonHostID');
51: my $tabdir = $r->dir_config('lonTabDir');
52:
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 $diropendb = "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_indexer.db";
187:
188: if (tie(%hash,'GDBM_File',$diropendb,&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 $toplevel = $uri;
261: my $indent = 0;
262: &scanDir ($r,$toplevel,$indent);
263:
264: $r->print("<form name='fnum'>");
265: $r->print("<input type='hidden' name='fnum' value='$fnum'></form>");
266: $r->print("</table>");
267: $r->print("</td></tr></table>");
268: $r->print("</body></html>\n");
269: untie(%hash);
270: } else {
271: $r->print("Unable to tie hash to db file");
272: }
273: return OK;
274: }
275:
276:
277: # --------------------recursive scan of a directory
278: sub scanDir {
279: my ($r,$startdir,$indent)=@_;
280: my ($compuri,$curdir);
281: my $dirptr=16384;
282: $indent++;
283:
284: my %dupdirs = %dirs;
285: my @list=&get_list($r,$startdir);
286: foreach my $line (@list) {
287: my ($strip,$dom,$foo,$testdir,$foo)=split(/\&/,$line,5);
288: next if $strip =~ /.*\.meta$/;
289: if ($dom eq "domain") {
290: $compuri = join('',$strip,"/"); # domain list has /res/<domain name>
291: $curdir = $compuri;
292: } else {
293: $compuri = join('',$startdir,$strip,"/"); # user, dir & file having name only, i.e., w/o path
294: $curdir = $startdir;
295: }
296: my $diropen = "closed";
297: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/)) {
298: while (my ($key,$val)= each %dupdirs) {
299: if ($key eq $compuri and $val eq "open") {
300: $diropen = "opened";
301: delete $dupdirs{key},$dirs{$key};
302: }
303: }
304: }
305: &display_line($r,$diropen,$line,$indent,$curdir,@list);
306: &scanDir ($r,$compuri,$indent) if $diropen eq "opened";
307: }
308: $indent--;
309: }
310:
311: # ----------------- get complete matched list based on the uri ------
312: sub get_list {
313: my ($r,$uri)=@_;
314: my @list;
315: my $luri = $uri;
316: $luri =~ s/\//_/g;
317:
318: if ($ENV{'form.attrs'} eq "Refresh") {
319: map {
320: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
321: } keys %hash;
322: }
323:
324: if ($hash{'dirlist_files'.$luri}) {
325: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
326: } else {
327: @list = &Apache::lonnet::dirlist($uri);
328: $hash{'dirlist_files_'.$luri} = join('\n',@list);
329: }
330: return @list=&match_ext($r,@list);
331: }
332:
333: #-------------------------- filters out files based on extensions
334: sub match_ext {
335: my ($r,@packlist)=@_;
336: my @trimlist;
337: my $nextline;
338: my @fileext;
339: my $dirptr=16384;
340:
341: my $tabdir = $r->dir_config('lonTabDir');
342: my $fn = $tabdir."/filetypes.tab";
343: if (-e $fn) {
344: my $FH=Apache::File->new($fn);
345: my @content=<$FH>;
346: foreach my $line (@content) {
347: (my $ext,my $foo) = split /\s+/,$line;
348: push @fileext,$ext;
349: }
350: }
351: foreach my $line (@packlist) {
352: chomp $line;
353: $line =~ s/^\/home\/httpd\/html//;
354: my @unpackline = split (/\&/,$line);
355: next if ($unpackline[0] eq ".");
356: next if ($unpackline[0] eq "..");
357: my @filecom = split (/\./,$unpackline[0]);
358: my $fext = pop(@filecom);
359: my $fnptr = $unpackline[3]&$dirptr;
360: if ($fnptr == 0 and $unpackline[3] ne "") {
361: foreach my $nextline (@fileext) {
362: push @trimlist,$line if $nextline eq $fext;
363: }
364: } else {
365: push @trimlist,$line;
366: }
367: }
368: @trimlist = sort (@trimlist);
369: return @trimlist;
370: }
371:
372: #------------------- displays one line in appropriate table format
373: sub display_line{
374: my ($r,$diropen,$line,$indent,$startdir,@list)=@_;
375: my (@pathfn, $fndir, $fnptr);
376: my $dirptr=16384;
377: my $fileclr="#ffffe6";
378: my $iconpath= $r->dir_config('lonIconsURL') . "/";
379:
380: my @filecom = split (/\&/,$line);
381: my @pathcom = split (/\//,$filecom[0]);
382: my $listname = $pathcom[scalar(@pathcom)-1];
383: my $fnptr = $filecom[3]&$dirptr;
384: my $msg = 'View '.$filecom[0].' resources';
385: $msg = 'Close '.$filecom[0].' directory' if $diropen eq "opened";
386:
387: my $tabtag="</td>";
388: my $i=0;
389:
390: while ($i<=5) {
391: $tabtag=join('',$tabtag,"<td bgcolor=",$fileclr,"> </td>") if $hash{'display_attrs_'.$i} == 1;
392: $i++;
393: }
394: if ($filecom[1] eq "domain") {
395: $r->print("<tr>$extrafield");
396: $r->print("<td bgcolor=$fileclr valign=bottom>");
397: &begin_form ($r,$filecom[0].'/');
398: my $anchor = $filecom[0].'/';
399: $anchor =~ s/\///g;
400: $r->print ('<a name="'.$anchor.'"><input src="'.$iconpath.'server.gif"');
401: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'."\n");
402: $r->print("Domain - $listname $tabtag</tr></form>\n");
403: return OK;
404: }
405: if ($filecom[1] eq "user") {
406: $r->print("<tr>$extrafield");
407: $r->print("<td bgcolor=$fileclr valign=bottom>\n");
408: my $curdir = $startdir.$filecom[0].'/';
409: &begin_form ($r,$curdir);
410: my $anchor = $curdir;
411: $anchor =~ s/\///g;
412: $r->print ('<a name="'.$anchor.'"><img src="'.$iconpath.'whitespace1.gif" border=0>'."\n");
413: $r->print ('<input src="'.$iconpath.'folder_pointer_'.$diropen.'.gif"');
414: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'."\n");
415: $r->print ("<img src=",$iconpath,"quill.gif border=0>\n");
416: $r->print ("$listname $tabtag</tr></form>\n");
417: return OK;
418: }
419: # display file
420: if ($fnptr == 0 and $filecom[3] ne "") {
421: my @file_ext = split (/\./,$listname);
422: my $curfext = $file_ext[scalar(@file_ext)-1];
423: my $filelink = $startdir.$filecom[0];
424: $r->print("<tr><td nowrap valign='bottom' bgcolor=$fileclr>");
425: my $metafile = grep /^$filecom[0]\.meta\&/, @list;
426: my $title;
427: if ($ENV{'form.catalogmode'} eq 'interactive') {
428: $title=$listname;
429: $title = &Apache::lonnet::metadata($filelink,'title')
430: if ($metafile == 1);
431: $title=$listname unless $title;
432: $r->print("<a href='javascript:select_data(\"",
433: $title,'","',$filelink,"\")'>");
434: $r->print("<img src='",$iconpath,"select.gif' border=0></a>\n");
435: $r->print("</td><td valign='bottom' nowrap bgcolor=$fileclr>");
436: }
437: elsif ($ENV{'form.catalogmode'} eq 'groupimport') {
438: $title=$listname;
439: $title = &Apache::lonnet::metadata($filelink,'title')
440: if ($metafile == 1);
441: $title=$listname unless $title;
442: $r->print("<form name='form$fnum'>\n");
443: $r->print("<input type='checkbox' name='filelink"."' ".
444: "value='$filelink'>\n");
445: $r->print("<input type='hidden' name='title"."' ".
446: "value='$title'>\n");
447: $r->print("</form>\n");
448: $r->print("</td><td valign='bottom' nowrap bgcolor=$fileclr>");
449: $fnum++;
450: }
451:
452: if ($indent < 11) {
453: $r->print("<img src=",$iconpath,"whitespace",$indent,".gif border=0>\n");
454: } elsif ($indent >0) {
455: my $ten = int($indent/10.);
456: my $rem = $indent%10.0;
457: my $count = 0;
458: while ($count < $ten) {
459: $r->print("<img src=",$iconpath,"whitespace10.gif border=0>\n");
460: $count++;
461: }
462: $r->print("<img src=",$iconpath,"whitespace",$rem,".gif border=0>\n") if $rem > 0;
463: }
464:
465: $r->print("<img src=$iconpath$curfext.gif border=0>\n");
466: $r->print(" <a href=$filelink target='_blank'>",$listname,"</a>\n");
467:
468: $r->print (" (<a href=\"javascript:openWindow('".$filelink.".meta', 'metadatafile', '400', '450', 'no', 'yes')\"; TARGET=_self>metadata</a>) ") if ($metafile == 1);
469:
470: $r->print("</td>\n");
471: $r->print("<td bgcolor=$fileclr align=right valign=bottom> ",$filecom[8]," </td>\n")
472: if $hash{'display_attrs_0'} == 1;
473: $r->print("<td bgcolor=$fileclr valign=bottom> ".(localtime($filecom[9]))." </td>\n")
474: if $hash{'display_attrs_1'} == 1;
475: $r->print("<td bgcolor=$fileclr valign=bottom> ".(localtime($filecom[10]))." </td>\n")
476: if $hash{'display_attrs_2'} == 1;
477:
478: if ($hash{'display_attrs_3'} == 1) {
479: my $author = &Apache::lonnet::metadata($filelink,'author') if ($metafile == 1);
480: $author = ' ' if (!$author);
481: $r->print("<td bgcolor=$fileclr valign=bottom> ".$author." </td>\n");
482: }
483: if ($hash{'display_attrs_4'} == 1) {
484: my $keywords = &Apache::lonnet::metadata($filelink,'keywords') if ($metafile == 1);
485: $keywords = ' ' if (!$keywords);
486: $r->print("<td bgcolor=$fileclr valign=bottom> ".$keywords." </td>\n");
487: }
488: if ($hash{'display_attrs_5'} == 1) {
489: my $lang = &Apache::lonnet::metadata($filelink,'language') if ($metafile == 1);
490: $lang = $language{$lang};
491: $lang = ' ' if (!$lang);
492: $r->print("<td bgcolor=$fileclr valign=bottom> ".$lang." </td>\n");
493: }
494: $r->print("</tr>\n");
495: }
496: # -- display directory
497: if ($fnptr == $dirptr) {
498: my @file_ext = split (/\./,$listname);
499: my $curfext = $file_ext[scalar(@file_ext)-1];
500: my $curdir = $startdir.$filecom[0].'/';
501: my $anchor = $curdir;
502: $anchor =~ s/\///g;
503: $r->print("<tr>$extrafield<td bgcolor=$fileclr valign=bottom>");
504: &begin_form ($r,$curdir);
505: my $indentm1 = $indent-1;
506: if ($indentm1 < 11 and $indentm1 > 0) {
507: $r->print("<img src=",$iconpath,"whitespace",$indentm1,".gif border=0>\n");
508: } else {
509: my $ten = int($indentm1/10.);
510: my $rem = $indentm1%10.0;
511: my $count = 0;
512: while ($count < $ten) {
513: $r->print("<img src=",$iconpath,"whitespace10.gif border=0>\n");
514: $count++;
515: }
516: $r->print("<img src=",$iconpath,"whitespace",$rem,".gif border=0>\n") if $rem > 0;
517: }
518: $r->print ('<a name="'.$anchor.'"><input src="'.$iconpath.'folder_pointer_'.$diropen.'.gif"');
519: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'."\n");
520: $r->print("<img src=",$iconpath,"folder_$diropen.gif border=0>\n");
521: $r->print("$listname $tabtag</tr></form>\n");
522: }
523:
524: }
525:
526: #---------------------prints the beginning of a form for directory or file link
527: sub begin_form {
528: my ($r,$uri) = @_;
529: my $anchor = $uri;
530: $anchor =~ s/\///g;
531: $r->print ('<form method="post" name="dirpath" action="/res/#'.$anchor.'" enctype="application/x-www-form-urlencoded">'."\n");
532: $r->print ("$hidden<input type=hidden name=openuri value=\"$uri\">\n");
533:
534: }
535:
536: 1;
537: __END__
538:
539:
540:
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