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: #
10: package Apache::lonindexer;
11:
12: use strict;
13: use Apache::lonnet();
14: use Apache::Constants qw(:common);
15: use Apache::File;
16: use GDBM_File;
17:
18: my %dirs;
19: my %language;
20:
21: sub BEGIN {
22: my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.'/language.tab');
23: map {
24: $_=~/(\w+)\s+([\w\s\-]+)/;
25: $language{$1}=$2;
26: } <$fh>;
27: }
28:
29: sub handler {
30: my $r = shift;
31: $r->content_type('text/html');
32: $r->send_http_header;
33: return OK if $r->header_only;
34:
35: my $iconpath= $r->dir_config('lonIconsURL');
36: my $domain = $r->dir_config('lonDefDomain');
37: my $role = $r->dir_config('lonRole');
38: my $loadlim = $r->dir_config('lonLoadLim');
39: my $servadm = $r->dir_config('lonAdmEMail');
40: my $sysadm = $r->dir_config('lonSysEMail');
41: my $lonhost = $r->dir_config('lonHostID');
42: my $tabdir = $r->dir_config('lonTabDir');
43:
44: # ---------------------------------------------------------------- Print Header
45: $r->print(<<ENDHEADER);
46: <html>
47: <head>
48: <title>The LearningOnline Network With CAPA Directory Browser</title>
49: <SCRIPT language="javascript">
50: function openWindow(url, wdwName, w, h, toolbar,scrollbar) {
51: var options = "width=" + w + ",height=" + h + ",";
52: options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
53: options += "menubar=no,toolbar="+toolbar+",location=no,directories=no";
54: var newWin = window.open(url, wdwName, options);
55: newWin.focus();
56: }
57: </SCRIPT>
58: </head>
59: <body bgcolor="#FFFFFF">
60: ENDHEADER
61:
62: my $line;
63: my (@attrchk,@openpath);
64: my $uri=$r->uri;
65: my $iconpath="/res/adm/pages/indexericons/";
66:
67: $r->print("<h2><font color=\"\#888888\">The LearningOnline With CAPA Network Directory Browser</font></h2>\n");
68:
69: for (my $i=0; $i<=5; $i++) {
70: $attrchk[$i] = "checked" if $ENV{'form.attr'.$i} == 1;
71: }
72: $r->print(<<END);
73: <b><font color="#666666">Display file attributes</font></b><br>
74: <form method="post" name="fileattr" action="$uri" enctype="application/x-www-form-urlencoded">
75: <table border=0><tr>
76: <td><input type=checkbox name=attr0 value="1" $attrchk[0]> Size</td>
77: <td><input type=checkbox name=attr1 value="1" $attrchk[1]> Last access</td>
78: <td><input type=checkbox name=attr2 value="1" $attrchk[2]> Last modified</td>
79: </tr><tr>
80: <td><input type=checkbox name=attr3 value="1" $attrchk[3]> Author</td>
81: <td><input type=checkbox name=attr4 value="1" $attrchk[4]> Keywords</td>
82: <td><input type=checkbox name=attr5 value="1" $attrchk[5]> Language</td>
83: </tr></table>
84: <input type="submit" name="dirlistattr" value="Review">
85: <input type="submit" name="dirlistattr" value="Refresh">
86: </form>
87: END
88:
89: my $diropen = "/home/httpd/perl/tmp/$domain$ENV{'user.name'}_diropen.db";
90:
91: if (tie(%dirs,'GDBM_File',$diropen,&GDBM_WRCREAT,0640)) {
92: my $titleclr="#ddffff";
93: # my $fileclr="#ffffdd";
94: $r->print("<table border=0><tr><td bgcolor=#eeeeee>\n");
95: $r->print("<table border=0><tr>\n");
96: $r->print("<td bgcolor=$titleclr><b>Name</b></td>\n");
97: $r->print("<td bgcolor=$titleclr align=right><b>Size (bytes) </b></td>\n") if ($ENV{'form.attr0'} == 1);
98: $r->print("<td bgcolor=$titleclr><b>Last accessed</b></td>\n") if ($ENV{'form.attr1'} == 1);
99: $r->print("<td bgcolor=$titleclr><b>Last modified</b></td>\n") if ($ENV{'form.attr2'} == 1);
100: $r->print("<td bgcolor=$titleclr><b>Author(s)</b></td>\n") if ($ENV{'form.attr3'} == 1);
101: $r->print("<td bgcolor=$titleclr><b>Keywords</b></td>\n") if ($ENV{'form.attr4'} == 1);
102: $r->print("<td bgcolor=$titleclr><b>Language</b></td>\n") if ($ENV{'form.attr5'} == 1);
103: $r->print("</tr>");
104:
105: if ($ENV{'form.openuri'}) { # take care of review and refresh options
106: my $uri=$ENV{'form.openuri'};
107: if (exists($dirs{$uri})) {
108: my $cursta = $dirs{$uri};
109: $dirs{$uri} = 'open';
110: $dirs{$uri} = 'closed' if $cursta eq 'open';
111: } else {
112: $dirs{$uri} = 'open';
113: }
114: }
115:
116: sort keys %dirs;
117:
118: my $toplevel = "/res/";
119: my $indent = -1;
120: &scanDir ($r,$toplevel,$indent);
121:
122: $r->print("</table>");
123: $r->print("</td></tr></table>");
124: $r->print("</body></html>\n");
125: untie(%dirs);
126: } else {
127: $r->print("Unable to tie hash to db file");
128: }
129: return OK;
130: }
131:
132: # --------------------recursive scan of a directory
133: sub scanDir {
134: my ($r,$startdir,$indent)=@_;
135: my $compuri;
136: $indent++;
137:
138: my %dupdirs = %dirs;
139: sort keys %dupdirs;
140: my @list=&get_list($r,$startdir);
141: foreach my $line (@list) {
142: my ($strip,$domusr,$foo,$testdir,$foo)=split(/\&/,$line,5);
143: if ($domusr eq "domain") {
144: $compuri=join('',$strip,"/"); # domain list has /res/<domain name>
145: } else {
146: $compuri = join('',$startdir,$strip,"/"); # user, dir & file having name only, i.e., w/o path
147: }
148: my $diropen = 0;
149: &display_line($r,$diropen,$line,$indent,$strip."/") if $domusr eq "domain";
150: while (my ($key,$val)= each %dupdirs) {
151: $diropen = 1 if ($key eq $compuri and $val eq "open");
152: }
153: &display_line($r,$diropen,$line,$indent,$startdir) if ($domusr ne "domain");
154: &scanDir ($r,$compuri,$indent) if $diropen == 1;
155: }
156: $indent--;
157: }
158:
159: # ----------------- get complete matched list based on the uri ------
160: sub get_list {
161: my ($r,$uri)=@_;
162: my @list;
163: my $luri = $uri;
164: my $domain = $r->dir_config('lonDefDomain');
165: $luri =~ s/\//_/g;
166:
167: if ($ENV{'form.dirlistattr'} eq "Refresh") {
168: my $tmpdir="/home/httpd/perl/tmp";
169: my $filename;
170: opendir(DIR,$tmpdir);
171: while ($filename=readdir(DIR)) {
172: if ($filename=~/^$domain$ENV{'user.name'}_dirlist.*\.tmp$/) {
173: unlink($tmpdir.'/'.$filename);
174: }
175: }
176: closedir(DIR);
177: }
178:
179: my $dirlist = "/home/httpd/perl/tmp/$domain$ENV{'user.name'}_dirlist$luri.tmp";
180: if (-e $dirlist) {
181: my $FH = Apache::File->new($dirlist);
182: @list=<$FH>;
183: } else {
184: @list=&Apache::lonnet::dirlist($uri);
185: my $FH = Apache::File->new(">$dirlist");
186: print $FH join("\n",@list);
187: }
188: @list = sort(@list);
189: return @list=&match_ext($r,@list);
190: }
191:
192: #-------------------------- filters out files based on extensions
193: sub match_ext {
194: my ($r,@packlist)=@_;
195: my @trimlist;
196: my $nextline;
197: my @fileext;
198: my $dirptr=16384;
199:
200: my $tabdir = $r->dir_config('lonTabDir');
201: my $fn = $tabdir."/filetypes.tab";
202: if (-e $fn) {
203: my $FH=Apache::File->new($fn);
204: my @content=<$FH>;
205: foreach my $line (@content) {
206: (my $ext,my $foo) = split /\s+/,$line;
207: push @fileext,$ext;
208: }
209: }
210: foreach my $line (@packlist) {
211: chomp $line;
212: $line =~ s/^\/home\/httpd\/html//;
213: my @unpackline = split (/\&/,$line);
214: next if ($unpackline[0] eq ".");
215: next if ($unpackline[0] eq "..");
216: my @filecom = split (/\./,$unpackline[0]);
217: my $fext = pop(@filecom);
218: next if $fext eq "meta";
219: my $fnptr = $unpackline[3]&$dirptr;
220: if ($fnptr == 0 and $unpackline[3] ne "") {
221: foreach my $nextline (@fileext) {
222: push @trimlist,$line if $nextline eq $fext;
223: }
224: } else {
225: push @trimlist,$line;
226: }
227: }
228: return @trimlist;
229: }
230:
231: #------------------- displays one line in appropriate table format
232: sub display_line{
233: my ($r,$diropen,$line,$indent,$startdir)=@_;
234: my (@pathfn, $fndir, $fnptr);
235: my $dirptr=16384;
236: my $fileclr="#ffffe6";
237: my $iconpath="/res/adm/pages/indexericons/";
238:
239: my @filecom = split (/\&/,$line);
240: my @pathcom = split (/\//,$filecom[0]);
241: my $listname = $pathcom[scalar(@pathcom)-1];
242: my $fnptr = $filecom[3]&$dirptr;
243:
244: my $tabtag="</td>";
245: my $i=0;
246:
247: while ($i<=5) {
248: my $key="form.attr".$i;
249: $tabtag=join('',$tabtag,"<td bgcolor=",$fileclr,"> </td>") if $ENV{$key} == 1;
250: $i++;
251: }
252: if ($filecom[1] eq "domain") {
253: $r->print("<tr>");
254: $r->print("<td bgcolor=$fileclr valign=bottom>");
255: &begin_form ($r,$filecom[0].'/');
256: $r->print ("<input src=\"$iconpath");
257: $r->print ("comp.blue.gif\"");
258: $r->print (" name=\"View $filecom[0]/ resources\" height=\"22\" type=\"image\" border=\"0\">\n");
259: $r->print("Domain - $listname $tabtag</tr></form>\n");
260: return OK;
261: }
262: if ($filecom[1] eq "user") {
263: $r->print("<tr>");
264: $r->print("<td bgcolor=$fileclr valign=bottom>\n");
265: my $curdir = $startdir.$filecom[0].'/';
266: &begin_form ($r,$curdir);
267: $r->print("<img src=",$iconpath,"white_space_20_22.gif border=0>\n");
268: $r->print ("<input src=\"$iconpath");
269: $r->print ("folder_pointer_closed.gif\"") if $diropen == 0;
270: $r->print ("folder_pointer_opened.gif\"") if $diropen == 1;
271: $r->print (" name=\"View $curdir resources\" height=\"22\" type=\"image\" border=\"0\">\n");
272: $r->print("<img src=",$iconpath,"quill.gif border=0>\n");
273: $r->print("$listname $tabtag</tr></form>\n");
274: return OK;
275: }
276: # display file
277: if ($fnptr == 0 and $filecom[3] ne "") {
278: my @file_ext = split (/\./,$listname);
279: my $curfext = $file_ext[scalar(@file_ext)-1];
280: my $filelink = $startdir.$filecom[0];
281: my $count = 0;
282: $r->print("<tr><td bgcolor=$fileclr>");
283: while ($count < $indent) {
284: $r->print("<img src=",$iconpath,"white_space_20_22.gif border=0>\n");
285: $count++;
286: }
287: $r->print("<img src=",$iconpath,"white_space_20_22.gif border=0>\n");
288: $r->print("<img src=$iconpath$curfext.gif border=0>\n");
289: $r->print(" <a href=$filelink>",$listname,"</a>");
290: my $metafile = '/home/httpd/html'.$filelink.'.meta';
291:
292: $r->print (" (<a href=\"javascript:openWindow('".$filelink.".meta', 'metadata', '400', '450', 'no', 'yes')\"; TARGET=_self>metadata</a>) ") if (-e $metafile);
293:
294: # $r->print(" (<a href=$filelink.meta target=cat>metadata</a>)") if (-e $metafile);
295: $r=>print("</td>\n");
296: $r->print("<td bgcolor=$fileclr align=right valign=bottom> ",$filecom[8]," </td>\n") if $ENV{'form.attr0'} == 1;
297: $r->print("<td bgcolor=$fileclr valign=bottom> ".(localtime($filecom[9]))." </td>\n") if $ENV{'form.attr1'} == 1;
298: $r->print("<td bgcolor=$fileclr valign=bottom> ".(localtime($filecom[10]))." </td>\n") if $ENV{'form.attr2'} == 1;
299:
300: if ($ENV{'form.attr3'} == 1) {
301: my $author = &Apache::lonnet::metadata($filelink,'author');
302: $author = ' ' if (!$author);
303: $r->print("<td bgcolor=$fileclr valign=bottom> ".$author." </td>\n");
304: }
305: if ($ENV{'form.attr4'} == 1) {
306: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
307: $keywords = ' ' if (!$keywords);
308: $r->print("<td bgcolor=$fileclr valign=bottom> ".$keywords." </td>\n");
309: }
310: if ($ENV{'form.attr5'} == 1) {
311: my $lang = &Apache::lonnet::metadata($filelink,'language');
312: $lang = $language{$lang};
313: $lang = ' ' if (!$lang);
314: $r->print("<td bgcolor=$fileclr valign=bottom> ".$lang." </td>\n");
315: }
316: $r->print("</tr>\n");
317: }
318: # -- display directory
319: if ($fnptr == $dirptr) {
320: my @file_ext = split (/\./,$listname);
321: my $curfext = $file_ext[scalar(@file_ext)-1];
322: my $curdir = $startdir.$filecom[0].'/';
323: $r->print("<tr><td bgcolor=$fileclr valign=bottom>");
324: &begin_form ($r,$curdir);
325:
326: my $count = 0;
327: while ($count < $indent) {
328: $r->print("<img src=",$iconpath,"white_space_20_22.gif border=0>\n");
329: $count++;
330: }
331:
332: $r->print ("<input src=\"$iconpath");
333: $r->print ("folder_pointer_closed.gif\"") if $diropen == 0;
334: $r->print ("folder_pointer_opened.gif\"") if $diropen == 1;
335: $r->print (" name=\"View $curdir resources\" height=\"22\" type=\"image\" border=\"0\">\n");
336: $r->print("<img src=",$iconpath,"folder_closed.gif border=0>\n") if $diropen == 0;
337: $r->print("<img src=",$iconpath,"folder_opened.gif border=0>\n") if $diropen == 1;
338: $r->print("$listname $tabtag</tr></form>\n");
339: }
340:
341: }
342:
343: #---------------------prints the beginning of a form for directory or file link
344: sub begin_form {
345: my ($r,$uri) = @_;
346:
347: $r->print ("<form method=\"post\" name=\"dirpath\" action=\"/res/\" enctype=\"application/x-www-form-urlencoded\">\n");
348: $r->print ("<input type=hidden name=openuri value=\"$uri\">\n");
349:
350: for (my $i=0; $i<=5; $i++) {
351: $r->print ("<input type=hidden name=attr$i value=\"1\">\n") if $ENV{'form.attr'.$i} == 1;
352: }
353: }
354:
355: 1;
356: __END__
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