1: # The LON-CAPA Homework handler
2: # Guy Albertelli
3:
4: package Apache::lonhomework;
5: use strict;
6: use Apache::style;
7: use Apache::lonxml;
8: use Apache::lonnet;
9: use Apache::inputtags;
10: use Apache::structuretags;
11: use Apache::response;
12:
13: sub handler {
14: my $request=shift;
15:
16: my $target=&get_target();
17: $Apache::lonxml::debug=1;
18: $request->content_type('text/html');
19: $request->send_http_header;
20: &Apache::lonhomework::send_header($request);
21: my $file = "/home/httpd/html".$request->uri;
22: my %mystyle;
23: my $result = '';
24: &Apache::inputtags::initialize_inputtags;
25:
26: my $problem=&Apache::lonnet::getfile($file);
27: if ($problem == -1) {
28: &Apache::lonxml::error("<b> Unable to find <i>$file</i></b>");
29: $problem='';
30: }
31: my $default=&Apache::lonnet::getfile('/home/httpd/html/res/adm/includes/default_homework.lcpm');
32: if ($default == -1) {
33: &Apache::lonxml::error("<b>Unable to find <i>$file</i></b>");
34: $default='';
35: }
36:
37: $result = Apache::lonxml::xmlparse($target, $problem,
38: $default.&setup_vars($target),%mystyle);
39: #$request->print("Result follows:");
40: $request->print($result);
41: #$request->print(":Result ends");
42: &Apache::lonhomework::send_footer($request);
43: }
44:
45: sub get_target {
46: return "web";
47: }
48:
49: sub setup_vars {
50: my ($target) = @_;
51: return ';'
52: # return ';$external::target='.$target.';';
53: }
54:
55: sub send_header {
56: my ($request)= @_;
57: $request->print('<html>');
58: $request->print('<form method="POST" action="'.$request->uri.'">');
59: }
60:
61: sub send_footer {
62: my ($request)= @_;
63: $request->print('</form>');
64: $request->print('</html>');
65: }
66:
67: sub getfile {
68: my ($filename) = @_;
69: my $a="";
70: if (! -e $filename ) {
71: &Apache::lonnet::subscribe($filename);
72: &Apache::lonnet::repcopy($filename);
73: }
74: {
75: my $fh=Apache::File->new($filename);
76:
77: while (<$fh>) {
78: $a .=$_;
79: }
80: }
81: return $a
82: }
83:
84: 1;
85: __END__
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