line |
stmt |
bran |
cond |
sub |
pod |
time |
code |
1
|
|
|
|
|
|
|
#!/usr/bin/perl -w |
2
|
|
|
|
|
|
|
# |
3
|
|
|
|
|
|
|
# Daemon.pm - XPC Daemon |
4
|
|
|
|
|
|
|
# |
5
|
|
|
|
|
|
|
# TODO: Make this a subclass of HTTP::Daemon and override |
6
|
|
|
|
|
|
|
# &product_tokens() to return "XPC::Daemon" + version number |
7
|
|
|
|
|
|
|
# so that the Server HTTP header won't say libwww*. |
8
|
|
|
|
|
|
|
# |
9
|
|
|
|
|
|
|
# Copyright (C) 2001 Gregor N. Purdy. |
10
|
|
|
|
|
|
|
# All rights reserved. |
11
|
|
|
|
|
|
|
# |
12
|
|
|
|
|
|
|
# This is free software; you can redistribute it and/or modify it under |
13
|
|
|
|
|
|
|
# the same terms as Perl itself. |
14
|
|
|
|
|
|
|
# |
15
|
|
|
|
|
|
|
|
16
|
|
|
|
|
|
|
|
17
|
1
|
|
|
1
|
|
2531
|
use strict; |
|
1
|
|
|
|
|
3
|
|
|
1
|
|
|
|
|
57
|
|
18
|
|
|
|
|
|
|
|
19
|
|
|
|
|
|
|
package XPC::Daemon; |
20
|
|
|
|
|
|
|
|
21
|
1
|
|
|
1
|
|
832
|
use HTTP::Daemon; |
|
1
|
|
|
|
|
100166
|
|
|
1
|
|
|
|
|
13
|
|
22
|
1
|
|
|
1
|
|
893
|
use HTTP::Status; |
|
1
|
|
|
|
|
3
|
|
|
1
|
|
|
|
|
394
|
|
23
|
1
|
|
|
1
|
|
1262
|
use Data::Dumper; |
|
1
|
|
|
|
|
15480
|
|
|
1
|
|
|
|
|
95
|
|
24
|
|
|
|
|
|
|
|
25
|
1
|
|
|
1
|
|
755
|
use XPC; |
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
26
|
|
|
|
|
|
|
|
27
|
|
|
|
|
|
|
|
28
|
|
|
|
|
|
|
# |
29
|
|
|
|
|
|
|
# new() |
30
|
|
|
|
|
|
|
# |
31
|
|
|
|
|
|
|
|
32
|
|
|
|
|
|
|
sub new |
33
|
|
|
|
|
|
|
{ |
34
|
|
|
|
|
|
|
my $class = shift; |
35
|
|
|
|
|
|
|
|
36
|
|
|
|
|
|
|
my $self = bless { PROCEDURES => { } }, $class; |
37
|
|
|
|
|
|
|
|
38
|
|
|
|
|
|
|
$self->{DAEMON} = new HTTP::Daemon; |
39
|
|
|
|
|
|
|
$self->{DEBUG} = 0; |
40
|
|
|
|
|
|
|
|
41
|
|
|
|
|
|
|
return $self; |
42
|
|
|
|
|
|
|
} |
43
|
|
|
|
|
|
|
|
44
|
|
|
|
|
|
|
|
45
|
|
|
|
|
|
|
# |
46
|
|
|
|
|
|
|
# debug() |
47
|
|
|
|
|
|
|
# |
48
|
|
|
|
|
|
|
|
49
|
|
|
|
|
|
|
sub debug |
50
|
|
|
|
|
|
|
{ |
51
|
|
|
|
|
|
|
my $self = shift; |
52
|
|
|
|
|
|
|
|
53
|
|
|
|
|
|
|
$self->{DEBUG} = ($_[0] ? 1 : 0) if @_; |
54
|
|
|
|
|
|
|
|
55
|
|
|
|
|
|
|
return $self->{DEBUG}; |
56
|
|
|
|
|
|
|
} |
57
|
|
|
|
|
|
|
|
58
|
|
|
|
|
|
|
|
59
|
|
|
|
|
|
|
# |
60
|
|
|
|
|
|
|
# url() |
61
|
|
|
|
|
|
|
# |
62
|
|
|
|
|
|
|
|
63
|
|
|
|
|
|
|
sub url |
64
|
|
|
|
|
|
|
{ |
65
|
|
|
|
|
|
|
my $self = shift; |
66
|
|
|
|
|
|
|
|
67
|
|
|
|
|
|
|
return $self->daemon->url . "XPC"; |
68
|
|
|
|
|
|
|
} |
69
|
|
|
|
|
|
|
|
70
|
|
|
|
|
|
|
|
71
|
|
|
|
|
|
|
# |
72
|
|
|
|
|
|
|
# run() |
73
|
|
|
|
|
|
|
# |
74
|
|
|
|
|
|
|
|
75
|
|
|
|
|
|
|
sub run |
76
|
|
|
|
|
|
|
{ |
77
|
|
|
|
|
|
|
my $self = shift; |
78
|
|
|
|
|
|
|
|
79
|
|
|
|
|
|
|
die "$0: No procedures defined!" unless keys %{$self->{PROCEDURES}}; |
80
|
|
|
|
|
|
|
|
81
|
|
|
|
|
|
|
while (my $c = $self->daemon->accept) { |
82
|
|
|
|
|
|
|
while (my $r = $c->get_request) { |
83
|
|
|
|
|
|
|
if ($r->method eq 'POST' and $r->url->path eq "/XPC") { |
84
|
|
|
|
|
|
|
my @response = $self->process_request($r); |
85
|
|
|
|
|
|
|
my $xpc = XPC->new; |
86
|
|
|
|
|
|
|
map { $xpc->add_response($_); } @response; |
87
|
|
|
|
|
|
|
my $http_res = new HTTP::Response; |
88
|
|
|
|
|
|
|
$http_res->content($xpc->as_string); |
89
|
|
|
|
|
|
|
$http_res->code(200); |
90
|
|
|
|
|
|
|
$c->send_response($http_res); |
91
|
|
|
|
|
|
|
} else { |
92
|
|
|
|
|
|
|
$c->send_error(RC_FORBIDDEN) |
93
|
|
|
|
|
|
|
} |
94
|
|
|
|
|
|
|
} |
95
|
|
|
|
|
|
|
$c->close; |
96
|
|
|
|
|
|
|
undef($c); |
97
|
|
|
|
|
|
|
} |
98
|
|
|
|
|
|
|
} |
99
|
|
|
|
|
|
|
|
100
|
|
|
|
|
|
|
|
101
|
|
|
|
|
|
|
|
102
|
|
|
|
|
|
|
# |
103
|
|
|
|
|
|
|
# add_procedure() |
104
|
|
|
|
|
|
|
# |
105
|
|
|
|
|
|
|
|
106
|
|
|
|
|
|
|
sub add_procedure |
107
|
|
|
|
|
|
|
{ |
108
|
|
|
|
|
|
|
my $self = shift; |
109
|
|
|
|
|
|
|
my ($procedure, $callback) = @_; |
110
|
|
|
|
|
|
|
|
111
|
|
|
|
|
|
|
$self->{PROCEDURES}{$procedure} = $callback; |
112
|
|
|
|
|
|
|
|
113
|
|
|
|
|
|
|
print "&XPC::Daemon::add_procedure(): Added procedure '$procedure'.\n" if $self->debug(); |
114
|
|
|
|
|
|
|
} |
115
|
|
|
|
|
|
|
|
116
|
|
|
|
|
|
|
|
117
|
|
|
|
|
|
|
# |
118
|
|
|
|
|
|
|
# callback() |
119
|
|
|
|
|
|
|
# |
120
|
|
|
|
|
|
|
|
121
|
|
|
|
|
|
|
sub callback |
122
|
|
|
|
|
|
|
{ |
123
|
|
|
|
|
|
|
my ($self, $procedure) = @_; |
124
|
|
|
|
|
|
|
|
125
|
|
|
|
|
|
|
return $self->{PROCEDURES}{$procedure}; |
126
|
|
|
|
|
|
|
} |
127
|
|
|
|
|
|
|
|
128
|
|
|
|
|
|
|
|
129
|
|
|
|
|
|
|
# |
130
|
|
|
|
|
|
|
# daemon() |
131
|
|
|
|
|
|
|
# |
132
|
|
|
|
|
|
|
|
133
|
|
|
|
|
|
|
sub daemon |
134
|
|
|
|
|
|
|
{ |
135
|
|
|
|
|
|
|
my $self = shift; |
136
|
|
|
|
|
|
|
return $self->{DAEMON}; |
137
|
|
|
|
|
|
|
} |
138
|
|
|
|
|
|
|
|
139
|
|
|
|
|
|
|
|
140
|
|
|
|
|
|
|
# |
141
|
|
|
|
|
|
|
# process_request() |
142
|
|
|
|
|
|
|
# |
143
|
|
|
|
|
|
|
|
144
|
|
|
|
|
|
|
sub process_request |
145
|
|
|
|
|
|
|
{ |
146
|
|
|
|
|
|
|
my $self = shift; |
147
|
|
|
|
|
|
|
my $r = shift; |
148
|
|
|
|
|
|
|
|
149
|
|
|
|
|
|
|
my @response; |
150
|
|
|
|
|
|
|
my $id_required; |
151
|
|
|
|
|
|
|
|
152
|
|
|
|
|
|
|
if ($self->debug()) { |
153
|
|
|
|
|
|
|
print "&XPC::Daemon::process_request(): Recieved request:\n"; |
154
|
|
|
|
|
|
|
print $r->content; |
155
|
|
|
|
|
|
|
print "\n"; |
156
|
|
|
|
|
|
|
|
157
|
|
|
|
|
|
|
print "&XPC::Daemon::process_request(): Parsing request...\n"; |
158
|
|
|
|
|
|
|
} |
159
|
|
|
|
|
|
|
|
160
|
|
|
|
|
|
|
my $xml = $r->content; |
161
|
|
|
|
|
|
|
my $xpc; |
162
|
|
|
|
|
|
|
|
163
|
|
|
|
|
|
|
eval { $xpc = XPC->new($xml); }; |
164
|
|
|
|
|
|
|
|
165
|
|
|
|
|
|
|
if ($@ or !defined $xpc) { |
166
|
|
|
|
|
|
|
print "&XPC::Daemon::process_request(): Unable to parse XPC request:\n"; |
167
|
|
|
|
|
|
|
print $xml; |
168
|
|
|
|
|
|
|
print "\n"; |
169
|
|
|
|
|
|
|
push @response, make_fault(7, "Unable to parse request!"); |
170
|
|
|
|
|
|
|
return @response; |
171
|
|
|
|
|
|
|
} |
172
|
|
|
|
|
|
|
|
173
|
|
|
|
|
|
|
print "&XPC::Daemon::process_request(): Request parses as class ", ref $xpc, ".\n" if $self->debug; |
174
|
|
|
|
|
|
|
|
175
|
|
|
|
|
|
|
$xpc = $xpc->[0]; |
176
|
|
|
|
|
|
|
|
177
|
|
|
|
|
|
|
if ($self->debug()) { |
178
|
|
|
|
|
|
|
print "&XPC::Daemon::process_request(): Class is ", ref $xpc, ".\n"; |
179
|
|
|
|
|
|
|
print Dumper($xpc); |
180
|
|
|
|
|
|
|
print "\n"; |
181
|
|
|
|
|
|
|
} |
182
|
|
|
|
|
|
|
|
183
|
|
|
|
|
|
|
|
184
|
|
|
|
|
|
|
my @requests = grep { ref $_ ne 'XPC::Characters' } @{$xpc->{Kids}}; |
185
|
|
|
|
|
|
|
|
186
|
|
|
|
|
|
|
print "&XPC::Daemon::process_request(): Processing queries and calls...\n" if $self->debug(); |
187
|
|
|
|
|
|
|
|
188
|
|
|
|
|
|
|
foreach my $req (@requests) { |
189
|
|
|
|
|
|
|
if (@requests > 1 and not $req->id) { |
190
|
|
|
|
|
|
|
@response = ( make_fault(3, "Every request of a multi-request must set 'id'!") ); |
191
|
|
|
|
|
|
|
last; |
192
|
|
|
|
|
|
|
|
193
|
|
|
|
|
|
|
# TODO: We really should scan them first so we don't cause any side-effects. |
194
|
|
|
|
|
|
|
} |
195
|
|
|
|
|
|
|
|
196
|
|
|
|
|
|
|
if (ref $req eq 'XPC::call') { |
197
|
|
|
|
|
|
|
push @response, $self->process_call($req); |
198
|
|
|
|
|
|
|
} elsif (ref $req eq 'XPC::query') { |
199
|
|
|
|
|
|
|
push @response, make_fault(1, "<query>s are not supported!"); |
200
|
|
|
|
|
|
|
} elsif (ref $req eq 'XPC::result') { |
201
|
|
|
|
|
|
|
push @response, make_fault(5, "<result>s are not requests!"); |
202
|
|
|
|
|
|
|
} elsif (ref $req eq 'XPC::fault') { |
203
|
|
|
|
|
|
|
push @response, make_fault(6, "<fault>s are not requests!"); |
204
|
|
|
|
|
|
|
} else { |
205
|
|
|
|
|
|
|
push @response, make_fault(4, sprintf("Unknown request type '%s'!", ref $req)); |
206
|
|
|
|
|
|
|
} |
207
|
|
|
|
|
|
|
} |
208
|
|
|
|
|
|
|
|
209
|
|
|
|
|
|
|
return @response; |
210
|
|
|
|
|
|
|
} |
211
|
|
|
|
|
|
|
|
212
|
|
|
|
|
|
|
|
213
|
|
|
|
|
|
|
# |
214
|
|
|
|
|
|
|
# process_call() |
215
|
|
|
|
|
|
|
# |
216
|
|
|
|
|
|
|
|
217
|
|
|
|
|
|
|
sub process_call |
218
|
|
|
|
|
|
|
{ |
219
|
|
|
|
|
|
|
my $self = shift; |
220
|
|
|
|
|
|
|
my $call = shift; |
221
|
|
|
|
|
|
|
|
222
|
|
|
|
|
|
|
my $procedure = $call->procedure; |
223
|
|
|
|
|
|
|
|
224
|
|
|
|
|
|
|
print "&XPC::Daemon::process_call(): Processing call to '$procedure'...\n" if $self->debug(); |
225
|
|
|
|
|
|
|
|
226
|
|
|
|
|
|
|
my $callback = $self->callback($procedure); |
227
|
|
|
|
|
|
|
|
228
|
|
|
|
|
|
|
if ($callback) { |
229
|
|
|
|
|
|
|
return make_result(scalar(&$callback())); |
230
|
|
|
|
|
|
|
} else { |
231
|
|
|
|
|
|
|
return make_fault(2, sprintf("<call> to unknown procedure '%s'!", $procedure)); |
232
|
|
|
|
|
|
|
} |
233
|
|
|
|
|
|
|
} |
234
|
|
|
|
|
|
|
|
235
|
|
|
|
|
|
|
|
236
|
|
|
|
|
|
|
############################################################################## |
237
|
|
|
|
|
|
|
## |
238
|
|
|
|
|
|
|
## UTILITIES: |
239
|
|
|
|
|
|
|
## |
240
|
|
|
|
|
|
|
############################################################################## |
241
|
|
|
|
|
|
|
|
242
|
|
|
|
|
|
|
|
243
|
|
|
|
|
|
|
# |
244
|
|
|
|
|
|
|
# make_fault() |
245
|
|
|
|
|
|
|
# |
246
|
|
|
|
|
|
|
|
247
|
|
|
|
|
|
|
sub make_fault |
248
|
|
|
|
|
|
|
{ |
249
|
|
|
|
|
|
|
return new XPC::fault(@_); |
250
|
|
|
|
|
|
|
} |
251
|
|
|
|
|
|
|
|
252
|
|
|
|
|
|
|
|
253
|
|
|
|
|
|
|
# |
254
|
|
|
|
|
|
|
# make_result() |
255
|
|
|
|
|
|
|
# |
256
|
|
|
|
|
|
|
|
257
|
|
|
|
|
|
|
sub make_result |
258
|
|
|
|
|
|
|
{ |
259
|
|
|
|
|
|
|
return XPC::result->new_scalar(@_); |
260
|
|
|
|
|
|
|
} |
261
|
|
|
|
|
|
|
|
262
|
|
|
|
|
|
|
|
263
|
|
|
|
|
|
|
1; |
264
|
|
|
|
|
|
|
|
265
|
|
|
|
|
|
|
|
266
|
|
|
|
|
|
|
=head1 NAME |
267
|
|
|
|
|
|
|
|
268
|
|
|
|
|
|
|
XPC::Daemon - XML Procedure Call daemon class |
269
|
|
|
|
|
|
|
|
270
|
|
|
|
|
|
|
|
271
|
|
|
|
|
|
|
=head1 SYNOPSIS |
272
|
|
|
|
|
|
|
|
273
|
|
|
|
|
|
|
use XPC::Daemon; |
274
|
|
|
|
|
|
|
my $daemon = new XPC::Daemon; |
275
|
|
|
|
|
|
|
$daemon->add_procedure('localtime', sub { localtime }); |
276
|
|
|
|
|
|
|
my $pid = fork; |
277
|
|
|
|
|
|
|
die "$0: Unable to fork!\n" unless defined $pid; |
278
|
|
|
|
|
|
|
|
279
|
|
|
|
|
|
|
if ($pid) { |
280
|
|
|
|
|
|
|
print STDOUT $daemon->url, "\n"; |
281
|
|
|
|
|
|
|
print STDERR "$0: Forked child $pid.\n"; |
282
|
|
|
|
|
|
|
exit 0; |
283
|
|
|
|
|
|
|
} else { |
284
|
|
|
|
|
|
|
$daemon->run; |
285
|
|
|
|
|
|
|
exit 0; |
286
|
|
|
|
|
|
|
} |
287
|
|
|
|
|
|
|
|
288
|
|
|
|
|
|
|
|
289
|
|
|
|
|
|
|
=head1 DESCRIPTION |
290
|
|
|
|
|
|
|
|
291
|
|
|
|
|
|
|
This class is a generic XPC-over-HTTP server daemon. Use the C |
292
|
|
|
|
|
|
|
method to give it specific functionality. |
293
|
|
|
|
|
|
|
|
294
|
|
|
|
|
|
|
|
295
|
|
|
|
|
|
|
=head1 AUTHOR |
296
|
|
|
|
|
|
|
|
297
|
|
|
|
|
|
|
Gregor N. Purdy Egregor@focusresearch.comE |
298
|
|
|
|
|
|
|
|
299
|
|
|
|
|
|
|
|
300
|
|
|
|
|
|
|
=head1 COPYRIGHT |
301
|
|
|
|
|
|
|
|
302
|
|
|
|
|
|
|
Copyright (C) 2001 Gregor N. Purdy. |
303
|
|
|
|
|
|
|
All rights reserved. |
304
|
|
|
|
|
|
|
|
305
|
|
|
|
|
|
|
This is free software; you can redistribute it and/or modify it under |
306
|
|
|
|
|
|
|
the same terms as Perl itself. |
307
|
|
|
|
|
|
|
|