1: # The LearningOnline Network with CAPA
2: # A debugging harness.
3: #
4: # $Id: lontest.pm,v 1.16 2005/04/07 06:56:23 albertel 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: package Apache::lontest;
31:
32: use strict;
33: use Apache::Constants qw(:common :http);
34: use GDBM_File;
35: use Apache::loncommon;
36: use Apache::lonnet;
37:
38: # section takes one env var name as input, and returns
39: # what section the given env var is in, which is the part
40: # of the env var before the first period.
41: # Returns the section, or blank string for 'no section',
42: # which is normal for the standard env vars like REQUEST_URI.
43: sub section
44: {
45: my ($name) = @_;
46: return $1 if $name =~ m/\A([^.]*)\./;
47: return '';
48: }
49:
50: sub print_hash {
51: my ($r,$hash)=@_;
52: my $i=0;
53: my $interval = 20; # change this to change how many keys/table
54: my $prevSection = ''; # keeps track of the section we're in.
55:
56: foreach my $envkey (sort(keys(%{$hash}))) {
57: if (not ($i % $interval)) {
58: $r->print('</table>') unless $i eq 0;
59: $r->print('<table border="0">');
60: }
61: my $sec = section($envkey);
62:
63: if ($prevSection ne $sec) { # new section, print header
64: $r->print('<tr><td colspan="2">');
65: $r->print("<br /><br /><h2 style='color: #008800'><u>$sec</u></h2>");
66: $r->print('</td></tr>');
67: $prevSection = $sec;
68: }
69:
70: my $envVal = $hash->{$envkey};
71: $envVal =~ s/(.{50})/$1\<wbr\>/g;
72: $envkey =~ s/(.{30})/$1\<wbr\>/g;
73:
74: $r->print("<tr><td valign='top'><b>$envkey</b></td>");
75: $r->print("<td valign='top'>$envVal</td></tr>\n");
76: $i++;
77: }
78:
79: $r->print('</table></font><h1>Total Number of Elements: '.$i.'</h1>');
80: }
81: sub handler {
82: my $r = shift;
83: &Apache::loncommon::content_type($r,'text/html');
84: $r->send_http_header;
85: return OK if $r->header_only;
86:
87: my $html=&Apache::lonxml::xmlbegin();
88: my $bodytag=&Apache::loncommon::bodytag("List Environment","admin");
89: $r->print($html.'<head></head>'.$bodytag);
90:
91: $r->print("<hr /><h1>Debugging</h1><hr />\n");
92: $r->print("<font face='Courier'>");
93:
94: my %differences=%ENV;
95: foreach my $key (sort(keys(%env))) {
96: if ($env{$key} eq $differences{$key}) {
97: delete($differences{$key});
98: }
99: }
100: &print_hash($r,\%differences);
101: &print_hash($r,\%env);
102: &print_hash($r,\%ENV);
103: # ------------------------------------------------ If in a course, print hashes
104: if ($env{'request.course.id'}) {
105:
106: my %parmhash;
107: my %symbhash;
108: my %hash;
109:
110: my $fn=$env{'request.course.fn'};
111:
112: if (tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER(),0640)) {
113: $r->print('<h2>Big Hash</h2>');
114: foreach (sort keys %hash) {
115: $r->print("\n<br />".$_.': '.$hash{$_});
116: }
117: untie %hash;
118: } else {
119: $r->print('<h2>Count not tie big hash</h2>');
120: }
121: if (tie(%parmhash,'GDBM_File',
122: $env{'request.course.fn'}.'_parms.db',
123: &GDBM_READER(),0640)) {
124: $r->print('<h2>Parm Hash</h2>');
125: foreach (sort keys %parmhash) {
126: $r->print("\n<br />".$_.': '.$parmhash{$_});
127: }
128: untie %parmhash;
129: } else {
130: $r->print('<h2>Could not tie parmhash</h2>');
131: }
132: if (tie(%symbhash,'GDBM_File',"$fn\_symb.db",&GDBM_READER(),0640)) {
133: $r->print('<h2>Symb Hash</h2>');
134: foreach (sort keys %symbhash) {
135: $r->print("\n<br />".$_.': '.$symbhash{$_});
136: }
137: untie %symbhash;
138: } else {
139: $r->print('<h2>Could not tie symbhash</h2>');
140: }
141: if (-e $fn.'.state') {
142: $r->print('<h2>State</h2>');
143: my @conditions=();
144: {
145: my $fh=Apache::File->new($fn.'.state');
146: @conditions=<$fh>;
147: }
148: foreach (@conditions) {
149: $r->print('<tt>'.$_.'</tt><br />');
150: }
151: }
152: }
153:
154: # ------------------------------------------------------------------- End Debug
155: $r->print('</body></html>');
156: return OK;
157: }
158:
159:
160: 1;
161: __END__
162:
163:
164:
165:
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