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 $iconpath='/res/adm/pages/indexericons/';
54: my $fileclr='#ffffe6';
55: # -------------------------------------- see if called from an interactive mode
56: map {
57: my ($name, $value) = split(/=/,$_);
58: $value =~ tr/+/ /;
59: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
60: if ($name eq 'catalogmode') {
61: $ENV{'form.'.$name}=$value;
62: }
63: } (split(/&/,$ENV{'QUERY_STRING'}));
64:
65: $hidden=''; my $closebutton='';
66: my $groupimportbutton='';
67: my $colspan='';
68: if ($ENV{'form.catalogmode'} eq 'interactive') {
69: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
70: '<a name="$anchor"><img src="'.$iconpath.'whitespace1.gif"'.
71: ' border="0"></td>';
72: $colspan=" colspan='2' ";
73: $hidden=<<END;
74: <input type='hidden' name='catalogmode' value='interactive'>
75: END
76: $closebutton=<<END;
77: <input type="button" name="close" value='CLOSE' onClick="self.close()">
78: END
79: }
80: elsif ($ENV{'form.catalogmode'} eq 'groupimport') {
81: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
82: '<a name="$anchor"><img src="'.$iconpath.'whitespace1.gif"'.
83: ' border="0"></td>';
84: $colspan=" colspan='2' ";
85: $hidden=<<END;
86: <input type='hidden' name='catalogmode' value='groupimport'>
87: END
88: $closebutton=<<END;
89: <input type="button" name="close" value='CLOSE' onClick="self.close()">
90: END
91: $groupimportbutton=<<END;
92: <input type="button" name="groupimport" value='GROUP IMPORT' onClick="javascript:select_group()">
93: END
94: }
95:
96: my $catalogmodefunctions='';
97: if ($ENV{'form.catalogmode'} eq 'interactive' or
98: $ENV{'form.catalogmode'} eq 'groupimport') {
99: $catalogmodefunctions=<<END;
100: function select_data(title,url) {
101: changeTitle(title);
102: changeURL(url);
103: self.close();
104: }
105: function save_group() {
106: for (var num=0; num<document.forms.fnum.fnum.value; num++) {
107: if (eval("document.forms.form"+num+".filelink.checked")) {
108: alert(eval("document.forms.form"+num+".title.value")+
109: eval("document.forms.form"+num+".filelink.value"));
110: }
111: }
112: }
113: function select_group() {
114: var linkflag=false;
115: for (var num=0; num<document.forms.fnum.fnum.value; num++) {
116: if (eval("document.forms.form"+num+".filelink.checked")) {
117: // alert(eval("document.forms.form"+num+".title.value")+
118: // eval("document.forms.form"+num+".filelink.value"));
119: insertRowInLastRow();
120: placeResourceInLastRow(
121: eval("document.forms.form"+num+".title.value"),
122: eval("document.forms.form"+num+".filelink.value"),
123: linkflag
124: );
125: linkflag=true;
126: }
127: }
128: opener.editmode=0;
129: opener.notclear=0;
130: opener.linkmode=0;
131: opener.infoclear();
132: opener.draw();
133: }
134: function insertRowInLastRow() {
135: opener.insertrow(opener.maxrow);
136: opener.addobj(opener.maxrow,'e&2');
137: }
138: function placeResourceInLastRow (title,url,linkflag) {
139: opener.newresource(opener.maxrow,2,opener.escape(title),opener.escape(url),'false','normal');
140: opener.save();
141: opener.mostrecent=opener.obj.length-1;
142: if (linkflag) {
143: opener.joinres(opener.linkmode,opener.mostrecent,0);
144: }
145: opener.linkmode=opener.mostrecent;
146: }
147: function changeTitle(val) {
148: if (opener.inf.document.forms.resinfo.elements.t) {
149: opener.inf.document.forms.resinfo.elements.t.value=val;
150: }
151: }
152: function changeURL(val) {
153: if (opener.inf.document.forms.resinfo.elements.u) {
154: opener.inf.document.forms.resinfo.elements.u.value=val;
155: }
156: }
157: END
158: }
159:
160: # ---------------------------------------------------------------- Print Header
161: $r->print(<<ENDHEADER);
162: <html>
163: <head>
164: <title>The LearningOnline Network With CAPA Directory Browser</title>
165:
166: <SCRIPT language="javascript">
167: $catalogmodefunctions
168: function openWindow(url, wdwName, w, h, toolbar,scrollbar) {
169: var options = "width=" + w + ",height=" + h + ",";
170: options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
171: options += "menubar=no,toolbar="+toolbar+",location=no,directories=no";
172: var newWin = window.open(url, wdwName, options);
173: newWin.focus();
174: }
175: </SCRIPT>
176:
177: </head>
178: <body bgcolor="#FFFFFF">
179: ENDHEADER
180:
181: my $line;
182: my (@attrchk,@openpath);
183: my $uri=$r->uri;
184:
185: $r->print("<h2><font color=\"\#888888\">The LearningOnline With CAPA Network Directory Browser</font></h2>\n");
186:
187: my $diropen = "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_indexer.db";
188:
189: if (tie(%hash,'GDBM_File',$diropen,&GDBM_WRCREAT,0640)) {
190:
191: if ($ENV{'form.attrs'} ne "") {
192: for (my $i=0; $i<=5; $i++) {
193: delete $hash{'display_attrs_'.$i};
194: if ($ENV{'form.attr'.$i} == 1) {
195: $attrchk[$i] = "checked";
196: $hash{'display_attrs_'.$i} = 1;
197: }
198: }
199: } else {
200: for (my $i=0; $i<=5; $i++) {
201: $attrchk[$i] = "checked" if $hash{'display_attrs_'.$i} == 1;
202: }
203: }
204: $r->print(<<END);
205: <b><font color="#666666">Display file attributes</font></b><br>
206: <form method="post" name="fileattr" action="$uri" enctype="application/x-www-form-urlencoded">
207: <table border=0><tr>
208: <td><input type=checkbox name=attr0 value="1" $attrchk[0]> Size</td>
209: <td><input type=checkbox name=attr1 value="1" $attrchk[1]> Last access</td>
210: <td><input type=checkbox name=attr2 value="1" $attrchk[2]> Last modified</td>
211: </tr><tr>
212: <td><input type=checkbox name=attr3 value="1" $attrchk[3]> Author</td>
213: <td><input type=checkbox name=attr4 value="1" $attrchk[4]> Keywords</td>
214: <td><input type=checkbox name=attr5 value="1" $attrchk[5]> Language</td>
215: </tr></table>
216: <input type="submit" name="attrs" value="Review">
217: <input type="submit" name="attrs" value="Refresh">
218: $hidden
219: $closebutton
220: $groupimportbutton
221: </form>
222: END
223:
224: my $titleclr="#ddffff";
225: $r->print("<table border=0><tr><td bgcolor=#eeeeee>\n");
226: $r->print("<table border=0><tr>\n");
227: $r->print("<td $colspan bgcolor=$titleclr><b>Name</b></td>\n");
228: $r->print("<td bgcolor=$titleclr align=right><b>Size (bytes) </b></td>\n") if ($hash{'display_attrs_0'} == 1);
229: $r->print("<td bgcolor=$titleclr><b>Last accessed</b></td>\n") if ($hash{'display_attrs_1'} == 1);
230: $r->print("<td bgcolor=$titleclr><b>Last modified</b></td>\n") if ($hash{'display_attrs_2'} == 1);
231: $r->print("<td bgcolor=$titleclr><b>Author(s)</b></td>\n") if ($hash{'display_attrs_3'} == 1);
232: $r->print("<td bgcolor=$titleclr><b>Keywords</b></td>\n") if ($hash{'display_attrs_4'} == 1);
233: $r->print("<td bgcolor=$titleclr><b>Language</b></td>\n") if ($hash{'display_attrs_5'} == 1);
234: $r->print("</tr>");
235:
236: map {
237: if ($_ =~ /^diropen_status_/) {
238: my $key = $_;
239: $key =~ s/^diropen_status_//;
240: $dirs{$key} = $hash{$_};
241: }
242: } keys %hash;
243:
244: if ($ENV{'form.openuri'}) { # take care of review and refresh options
245: my $uri=$ENV{'form.openuri'};
246: if (exists($hash{'diropen_status_'.$uri})) {
247: my $cursta = $hash{'diropen_status_'.$uri};
248: $dirs{$uri} = 'open';
249: $hash{'diropen_status_'.$uri} = 'open';
250: if ($cursta eq 'open') {
251: $dirs{$uri} = 'closed';
252: $hash{'diropen_status_'.$uri} = 'closed';
253: }
254: } else {
255: $hash{'diropen_status_'.$uri} = 'open';
256: $dirs{$uri} = 'open';
257: }
258: }
259:
260: my $toplevel = "/res/";
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 $diropen = 0;
297: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/)) {
298: while (my ($key,$val)= each %dupdirs) {
299: if ($key eq $compuri and $val eq "open") {
300: $diropen = 1;
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 == 1;
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: # my $iconpath="/res/adm/pages/indexericons/";
380:
381: my @filecom = split (/\&/,$line);
382: my @pathcom = split (/\//,$filecom[0]);
383: my $listname = $pathcom[scalar(@pathcom)-1];
384: my $fnptr = $filecom[3]&$dirptr;
385: my $msg = 'View '.$filecom[0].' resources';
386: $msg = 'Close '.$filecom[0].' directory' if $diropen == 1;
387:
388: my $tabtag="</td>";
389: my $i=0;
390:
391: while ($i<=5) {
392: # my $key="form.attr".$i;
393: # $tabtag=join('',$tabtag,"<td bgcolor=",$fileclr,"> </td>") if $ENV{$key} == 1;
394: $tabtag=join('',$tabtag,"<td bgcolor=",$fileclr,"> </td>") if $hash{'display_attrs_'.$i} == 1;
395: $i++;
396: }
397: if ($filecom[1] eq "domain") {
398: $r->print("<tr>$extrafield");
399: $r->print("<td bgcolor=$fileclr valign=bottom>");
400: &begin_form ($r,$filecom[0].'/');
401: my $anchor = $filecom[0].'/';
402: $anchor =~ s/\///g;
403: $r->print ("<a name=\"".$anchor."\">\n<input src=\"".$iconpath."server.gif\"");
404: $r->print (" name=\"$msg\" height=\"22\" type=\"image\" border=\"0\">\n");
405: $r->print("Domain - $listname $tabtag</tr></form>\n");
406: return OK;
407: }
408: if ($filecom[1] eq "user") {
409: $r->print("<tr>$extrafield");
410: $r->print("<td bgcolor=$fileclr valign=bottom>\n");
411: my $curdir = $startdir.$filecom[0].'/';
412: &begin_form ($r,$curdir);
413: my $anchor = $curdir;
414: $anchor =~ s/\///g;
415: # $r->print ("<a name=\"$anchor\">\n<img src=",$iconpath,"white_space_20_22.gif border=0>\n");
416: $r->print ("<a name=\"$anchor\">\n<img src=",$iconpath,"whitespace1.gif border=0>\n");
417: $r->print ("<input src=\"$iconpath");
418: $r->print ("folder_pointer_closed.gif\"") if $diropen == 0;
419: $r->print ("folder_pointer_opened.gif\"") if $diropen == 1;
420: $r->print (" name=\"$msg\" height=\"22\" type=\"image\" border=\"0\">\n");
421: $r->print ("<img src=",$iconpath,"quill.gif border=0>\n");
422: $r->print ("$listname $tabtag</tr></form>\n");
423: return OK;
424: }
425: # display file
426: if ($fnptr == 0 and $filecom[3] ne "") {
427: my @file_ext = split (/\./,$listname);
428: my $curfext = $file_ext[scalar(@file_ext)-1];
429: my $filelink = $startdir.$filecom[0];
430: $r->print("<tr><td nowrap valign='bottom' bgcolor=$fileclr>");
431: my $metafile = grep /^$filecom[0]\.meta\&/, @list;
432: my $title;
433: if ($ENV{'form.catalogmode'} eq 'interactive') {
434: $title=$listname;
435: $title = &Apache::lonnet::metadata($filelink,'title')
436: if ($metafile == 1);
437: $title=$listname unless $title;
438: $r->print("<a href='javascript:select_data(\"",
439: $title,'","',$filelink,"\")'>");
440: $r->print("<img src='",$iconpath,"select.gif' border=0></a>\n");
441: $r->print("</td><td valign='bottom' nowrap bgcolor=$fileclr>");
442: }
443: elsif ($ENV{'form.catalogmode'} eq 'groupimport') {
444: $title=$listname;
445: $title = &Apache::lonnet::metadata($filelink,'title')
446: if ($metafile == 1);
447: $title=$listname unless $title;
448: $r->print("<form name='form$fnum'>\n");
449: $r->print("<input type='checkbox' name='filelink"."' ".
450: "value='$filelink'>\n");
451: $r->print("<input type='hidden' name='title"."' ".
452: "value='$title'>\n");
453: $r->print("</form>\n");
454: $r->print("</td><td valign='bottom' nowrap bgcolor=$fileclr>");
455: $fnum++;
456: }
457:
458: if ($indent < 11) {
459: $r->print("<img src=",$iconpath,"whitespace",$indent,".gif border=0>\n");
460: } else {
461: my $ten = int($indent/10.);
462: my $rem = $indent%10.0;
463: my $count = 0;
464: while ($count < $ten) {
465: $r->print("<img src=",$iconpath,"whitespace10.gif border=0>\n");
466: $count++;
467: }
468: $r->print("<img src=",$iconpath,"whitespace",$rem,".gif border=0>\n") if $rem > 0;
469: }
470:
471: $r->print("<img src=$iconpath$curfext.gif border=0>\n");
472: $r->print(" <a href=$filelink target='_blank'>",$listname,"</a>\n");
473:
474: $r->print (" (<a href=\"javascript:openWindow('".$filelink.".meta', 'metadatafile', '400', '450', 'no', 'yes')\"; TARGET=_self>metadata</a>) ") if ($metafile == 1);
475:
476: $r->print("</td>\n");
477: # $r->print("<td bgcolor=$fileclr align=right valign=bottom> ",$filecom[8]," </td>\n") if $ENV{'form.attr0'} == 1;
478: $r->print("<td bgcolor=$fileclr align=right valign=bottom> ",$filecom[8]," </td>\n") if $hash{'display_attrs_0'} == 1;
479: $r->print("<td bgcolor=$fileclr valign=bottom> ".(localtime($filecom[9]))." </td>\n") if $hash{'display_attrs_1'} == 1;
480: $r->print("<td bgcolor=$fileclr valign=bottom> ".(localtime($filecom[10]))." </td>\n") if $hash{'display_attrs_2'} == 1;
481:
482: if ($hash{'display_attrs_3'} == 1) {
483: my $author = &Apache::lonnet::metadata($filelink,'author') if ($metafile == 1);
484: $author = ' ' if (!$author);
485: $r->print("<td bgcolor=$fileclr valign=bottom> ".$author." </td>\n");
486: }
487: if ($hash{'display_attrs_4'} == 1) {
488: my $keywords = &Apache::lonnet::metadata($filelink,'keywords') if ($metafile == 1);
489: $keywords = ' ' if (!$keywords);
490: $r->print("<td bgcolor=$fileclr valign=bottom> ".$keywords." </td>\n");
491: }
492: if ($hash{'display_attrs_5'} == 1) {
493: my $lang = &Apache::lonnet::metadata($filelink,'language') if ($metafile == 1);
494: $lang = $language{$lang};
495: $lang = ' ' if (!$lang);
496: $r->print("<td bgcolor=$fileclr valign=bottom> ".$lang." </td>\n");
497: }
498: $r->print("</tr>\n");
499: }
500: # -- display directory
501: if ($fnptr == $dirptr) {
502: my @file_ext = split (/\./,$listname);
503: my $curfext = $file_ext[scalar(@file_ext)-1];
504: my $curdir = $startdir.$filecom[0].'/';
505: my $anchor = $curdir;
506: $anchor =~ s/\///g;
507: $r->print("<tr>$extrafield<td bgcolor=$fileclr valign=bottom>");
508: &begin_form ($r,$curdir);
509: my $indentm1 = $indent-1;
510: if ($indentm1 < 11) {
511: $r->print("<img src=",$iconpath,"whitespace",$indentm1,".gif border=0>\n");
512: } else {
513: my $ten = int($indentm1/10.);
514: my $rem = $indentm1%10.0;
515: my $count = 0;
516: while ($count < $ten) {
517: $r->print("<img src=",$iconpath,"whitespace10.gif border=0>\n");
518: $count++;
519: }
520: $r->print("<img src=",$iconpath,"whitespace",$rem,".gif border=0>\n") if $rem > 0;
521: }
522: $r->print ("<a name=\"$anchor\">\n<input src=\"$iconpath");
523: $r->print ("folder_pointer_closed.gif\"") if $diropen == 0;
524: $r->print ("folder_pointer_opened.gif\"") if $diropen == 1;
525: $r->print (" name=\"$msg\" height=\"22\" type=\"image\" border=\"0\">\n");
526: $r->print("<img src=",$iconpath,"folder_closed.gif border=0>\n") if $diropen == 0;
527: $r->print("<img src=",$iconpath,"folder_opened.gif border=0>\n") if $diropen == 1;
528: $r->print("$listname $tabtag</tr></form>\n");
529: }
530:
531: }
532:
533: #---------------------prints the beginning of a form for directory or file link
534: sub begin_form {
535: my ($r,$uri) = @_;
536: my $anchor = $uri;
537: $anchor =~ s/\///g;
538: $r->print ("<form method=\"post\" name=\"dirpath\" action=\"/res/\#$anchor\" enctype=\"application/x-www-form-urlencoded\">\n");
539: $r->print ("$hidden<input type=hidden name=openuri value=\"$uri\">\n");
540:
541: # for (my $i=0; $i<=5; $i++) {
542: # $r->print ("<input type=hidden name=attr$i value=\"1\">\n") if $ENV{'form.attr'.$i} == 1;
543: # }
544: }
545:
546: 1;
547: __END__
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