line |
stmt |
bran |
cond |
sub |
pod |
time |
code |
1
|
|
|
|
|
|
|
######################################################################## |
2
|
|
|
|
|
|
|
# |
3
|
|
|
|
|
|
|
# $Id: SocksChain10.pm,v 1.7 2009-12-28 15:12:16 gosha Exp $ |
4
|
|
|
|
|
|
|
# |
5
|
|
|
|
|
|
|
# Copyright (C) Igor V. Okunev goshaprv.mts-nn.ru 2005 - 2009 |
6
|
|
|
|
|
|
|
# |
7
|
|
|
|
|
|
|
# All rights reserved. This library is free software; |
8
|
|
|
|
|
|
|
# you can redistribute it and/or modify it under the |
9
|
|
|
|
|
|
|
# same terms as Perl itself. |
10
|
|
|
|
|
|
|
# |
11
|
|
|
|
|
|
|
######################################################################## |
12
|
|
|
|
|
|
|
|
13
|
|
|
|
|
|
|
package LWP::Protocol::http::SocksChain10; |
14
|
|
|
|
|
|
|
|
15
|
1
|
|
|
1
|
|
24700
|
use strict; |
|
1
|
|
|
|
|
2
|
|
|
1
|
|
|
|
|
40
|
|
16
|
1
|
|
|
1
|
|
6
|
use vars qw( @ISA $VERSION @EXTRA_SOCK_OPTS ); |
|
1
|
|
|
|
|
2
|
|
|
1
|
|
|
|
|
70
|
|
17
|
|
|
|
|
|
|
|
18
|
1
|
|
|
1
|
|
1001
|
use Net::SC; |
|
1
|
|
|
|
|
61182
|
|
|
1
|
|
|
|
|
1976
|
|
19
|
|
|
|
|
|
|
|
20
|
|
|
|
|
|
|
require HTTP::Response; |
21
|
|
|
|
|
|
|
require HTTP::Status; |
22
|
|
|
|
|
|
|
require IO::Select; |
23
|
|
|
|
|
|
|
require LWP::Protocol; |
24
|
|
|
|
|
|
|
|
25
|
|
|
|
|
|
|
($VERSION='$Revision: 1.7 $')=~s/^\S+\s+(\S+)\s+.*/$1/; |
26
|
|
|
|
|
|
|
|
27
|
|
|
|
|
|
|
local $^W = 1; |
28
|
|
|
|
|
|
|
|
29
|
|
|
|
|
|
|
@ISA = qw(LWP::Protocol); |
30
|
|
|
|
|
|
|
|
31
|
|
|
|
|
|
|
my $CRLF = "\015\012"; |
32
|
|
|
|
|
|
|
|
33
|
|
|
|
|
|
|
sub _new_socket |
34
|
|
|
|
|
|
|
{ |
35
|
0
|
|
|
0
|
|
|
my($self, $host, $port, $timeout ) = @_; |
36
|
|
|
|
|
|
|
|
37
|
|
|
|
|
|
|
|
38
|
0
|
|
0
|
|
|
|
my $sc = Net::SC->new( TimeOut => $timeout, |
39
|
|
|
|
|
|
|
$self->_extra_sock_opts($host, $port), |
40
|
|
|
|
|
|
|
) || die $!; |
41
|
|
|
|
|
|
|
|
42
|
0
|
0
|
|
|
|
|
unless ( ( my $rc = $sc->connect( $host, $port ) ) == SOCKS_OKAY ) { |
43
|
0
|
|
|
|
|
|
die socks_error($rc) . "\n"; |
44
|
|
|
|
|
|
|
} |
45
|
|
|
|
|
|
|
|
46
|
0
|
|
0
|
|
|
|
my $sock = $sc->sh || die $!; |
47
|
|
|
|
|
|
|
|
48
|
0
|
0
|
|
|
|
|
unless ($sock) { |
49
|
|
|
|
|
|
|
# IO::Socket leaves additional error messages in $@ |
50
|
0
|
|
|
|
|
|
$@ =~ s/^.*?: //; |
51
|
0
|
|
|
|
|
|
die "Can't connect to $host:$port ($@)"; |
52
|
|
|
|
|
|
|
} |
53
|
|
|
|
|
|
|
|
54
|
|
|
|
|
|
|
# perl 5.005's IO::Socket does not have the blocking method. |
55
|
0
|
|
|
|
|
|
eval { $sock->blocking(0); }; |
|
0
|
|
|
|
|
|
|
56
|
|
|
|
|
|
|
|
57
|
0
|
|
|
|
|
|
return $sock; |
58
|
|
|
|
|
|
|
} |
59
|
|
|
|
|
|
|
|
60
|
|
|
|
|
|
|
sub _extra_sock_opts # to be overridden by subclass |
61
|
|
|
|
|
|
|
{ |
62
|
0
|
|
|
0
|
|
|
return @EXTRA_SOCK_OPTS; |
63
|
|
|
|
|
|
|
} |
64
|
|
|
|
|
|
|
|
65
|
|
|
|
|
|
|
|
66
|
|
|
|
|
|
|
sub _check_sock |
67
|
0
|
|
|
0
|
|
|
{ |
68
|
|
|
|
|
|
|
#my($self, $req, $sock) = @_; |
69
|
|
|
|
|
|
|
} |
70
|
|
|
|
|
|
|
|
71
|
|
|
|
|
|
|
sub _get_sock_info |
72
|
|
|
|
|
|
|
{ |
73
|
0
|
|
|
0
|
|
|
my($self, $res, $sock) = @_; |
74
|
|
|
|
|
|
|
|
75
|
0
|
0
|
|
|
|
|
if (defined(my $peerhost = $sock->peerhost)) { |
76
|
0
|
|
|
|
|
|
$res->header("Client-Peer" => "$peerhost:" . $sock->peerport); |
77
|
|
|
|
|
|
|
} |
78
|
|
|
|
|
|
|
} |
79
|
|
|
|
|
|
|
|
80
|
|
|
|
|
|
|
sub _fixup_header |
81
|
|
|
|
|
|
|
{ |
82
|
0
|
|
|
0
|
|
|
my($self, $h, $url) = @_; |
83
|
|
|
|
|
|
|
|
84
|
0
|
|
|
|
|
|
$h->remove_header('Connection'); # need support here to be useful |
85
|
|
|
|
|
|
|
|
86
|
|
|
|
|
|
|
# HTTP/1.1 will require us to send the 'Host' header, so we might |
87
|
|
|
|
|
|
|
# as well start now. |
88
|
0
|
|
|
|
|
|
my $hhost = $url->authority; |
89
|
|
|
|
|
|
|
|
90
|
0
|
|
|
|
|
|
$hhost =~ s/^([^\@]*)\@//; # get rid of potential "user:pass@" |
91
|
0
|
0
|
|
|
|
|
$h->header('Host' => $hhost) unless defined $h->header('Host'); |
92
|
|
|
|
|
|
|
|
93
|
|
|
|
|
|
|
# add authorization header if we need them. HTTP URLs do |
94
|
|
|
|
|
|
|
# not really support specification of user and password, but |
95
|
|
|
|
|
|
|
# we allow it. |
96
|
0
|
0
|
0
|
|
|
|
if (defined($1) && not $h->header('Authorization')) { |
97
|
0
|
|
|
|
|
|
require URI::Escape; |
98
|
0
|
|
|
|
|
|
$h->authorization_basic(map URI::Escape::uri_unescape($_), |
99
|
|
|
|
|
|
|
split(":", $1, 2)); |
100
|
|
|
|
|
|
|
} |
101
|
|
|
|
|
|
|
} |
102
|
|
|
|
|
|
|
|
103
|
|
|
|
|
|
|
|
104
|
|
|
|
|
|
|
sub request |
105
|
|
|
|
|
|
|
{ |
106
|
0
|
|
|
0
|
1
|
|
my($self, $request, undef, $arg, $size, $timeout) = @_; |
107
|
|
|
|
|
|
|
|
108
|
0
|
|
0
|
|
|
|
$size ||= 4096; |
109
|
|
|
|
|
|
|
|
110
|
|
|
|
|
|
|
# check method |
111
|
0
|
|
|
|
|
|
my $method = $request->method; |
112
|
|
|
|
|
|
|
|
113
|
0
|
0
|
|
|
|
|
unless ($method =~ /^[A-Za-z0-9_!\#\$%&\'*+\-.^\`|~]+$/) { # HTTP token |
114
|
0
|
|
|
|
|
|
return new HTTP::Response &HTTP::Status::RC_BAD_REQUEST, |
115
|
|
|
|
|
|
|
'Library does not allow method ' . |
116
|
|
|
|
|
|
|
"$method for 'http:' URLs"; |
117
|
|
|
|
|
|
|
} |
118
|
|
|
|
|
|
|
|
119
|
0
|
|
|
|
|
|
my $url = $request->url; |
120
|
|
|
|
|
|
|
|
121
|
0
|
|
|
|
|
|
my $host = $url->host; |
122
|
0
|
|
|
|
|
|
my $port = $url->port; |
123
|
0
|
|
|
|
|
|
my $fullpath = $url->path_query; |
124
|
|
|
|
|
|
|
|
125
|
0
|
0
|
|
|
|
|
$fullpath = "/" unless length $fullpath; |
126
|
|
|
|
|
|
|
|
127
|
|
|
|
|
|
|
# connect to remote site |
128
|
0
|
|
|
|
|
|
my $socket = $self->_new_socket( $host, $port, $timeout ); |
129
|
|
|
|
|
|
|
|
130
|
0
|
|
|
|
|
|
$self->_check_sock($request, $socket); |
131
|
|
|
|
|
|
|
|
132
|
0
|
0
|
|
|
|
|
my $sel = IO::Select->new($socket) if $timeout; |
133
|
|
|
|
|
|
|
|
134
|
0
|
|
|
|
|
|
my $request_line = "$method $fullpath HTTP/1.0$CRLF"; |
135
|
|
|
|
|
|
|
|
136
|
0
|
|
|
|
|
|
my $h = $request->headers->clone; |
137
|
0
|
|
|
|
|
|
my $cont_ref = $request->content_ref; |
138
|
|
|
|
|
|
|
|
139
|
0
|
0
|
|
|
|
|
$cont_ref = $$cont_ref if ref($$cont_ref); |
140
|
|
|
|
|
|
|
|
141
|
0
|
|
|
|
|
|
my $ctype = ref($cont_ref); |
142
|
|
|
|
|
|
|
|
143
|
|
|
|
|
|
|
# If we're sending content we *have* to specify a content length |
144
|
|
|
|
|
|
|
# otherwise the server won't know a messagebody is coming. |
145
|
0
|
0
|
|
|
|
|
if ($ctype eq 'CODE') { |
146
|
0
|
0
|
0
|
|
|
|
die 'No Content-Length header for request with dynamic content' |
147
|
|
|
|
|
|
|
unless defined($h->header('Content-Length')) || |
148
|
|
|
|
|
|
|
$h->content_type =~ /^multipart\//; |
149
|
|
|
|
|
|
|
# For HTTP/1.1 we could have used chunked transfer encoding... |
150
|
|
|
|
|
|
|
} else { |
151
|
0
|
0
|
0
|
|
|
|
$h->header('Content-Length' => length $$cont_ref) |
152
|
|
|
|
|
|
|
if defined($$cont_ref) && length($$cont_ref); |
153
|
|
|
|
|
|
|
} |
154
|
|
|
|
|
|
|
|
155
|
0
|
|
|
|
|
|
$self->_fixup_header($h, $url); |
156
|
|
|
|
|
|
|
|
157
|
0
|
|
|
|
|
|
my $buf = $request_line . $h->as_string($CRLF) . $CRLF; |
158
|
0
|
|
|
|
|
|
my $n; # used for return value from syswrite/sysread |
159
|
|
|
|
|
|
|
my $length; |
160
|
0
|
|
|
|
|
|
my $offset; |
161
|
|
|
|
|
|
|
|
162
|
|
|
|
|
|
|
# syswrite $buf |
163
|
0
|
|
|
|
|
|
$length = length($buf); |
164
|
0
|
|
|
|
|
|
$offset = 0; |
165
|
|
|
|
|
|
|
|
166
|
0
|
|
|
|
|
|
while ( $offset < $length ) { |
167
|
0
|
0
|
0
|
|
|
|
die "write timeout" if $timeout && !$sel->can_write($timeout); |
168
|
0
|
|
|
|
|
|
$n = $socket->syswrite($buf, $length-$offset, $offset ); |
169
|
0
|
0
|
|
|
|
|
die $! unless defined($n); |
170
|
0
|
|
|
|
|
|
$offset += $n; |
171
|
|
|
|
|
|
|
} |
172
|
|
|
|
|
|
|
|
173
|
0
|
0
|
0
|
|
|
|
if ($ctype eq 'CODE') { |
|
|
0
|
|
|
|
|
|
174
|
0
|
|
0
|
|
|
|
while ( ($buf = &$cont_ref()), defined($buf) && length($buf)) { |
175
|
|
|
|
|
|
|
# syswrite $buf |
176
|
0
|
|
|
|
|
|
$length = length($buf); |
177
|
0
|
|
|
|
|
|
$offset = 0; |
178
|
0
|
|
|
|
|
|
while ( $offset < $length ) { |
179
|
0
|
0
|
0
|
|
|
|
die "write timeout" if $timeout && !$sel->can_write($timeout); |
180
|
0
|
|
|
|
|
|
$n = $socket->syswrite($buf, $length-$offset, $offset ); |
181
|
0
|
0
|
|
|
|
|
die $! unless defined($n); |
182
|
0
|
|
|
|
|
|
$offset += $n; |
183
|
|
|
|
|
|
|
} |
184
|
|
|
|
|
|
|
} |
185
|
|
|
|
|
|
|
} elsif (defined($$cont_ref) && length($$cont_ref)) { |
186
|
|
|
|
|
|
|
# syswrite $$cont_ref |
187
|
0
|
|
|
|
|
|
$length = length($$cont_ref); |
188
|
0
|
|
|
|
|
|
$offset = 0; |
189
|
0
|
|
|
|
|
|
while ( $offset < $length ) { |
190
|
0
|
0
|
0
|
|
|
|
die "write timeout" if $timeout && !$sel->can_write($timeout); |
191
|
0
|
|
|
|
|
|
$n = $socket->syswrite($$cont_ref, $length-$offset, $offset ); |
192
|
0
|
0
|
|
|
|
|
die $! unless defined($n); |
193
|
0
|
|
|
|
|
|
$offset += $n; |
194
|
|
|
|
|
|
|
} |
195
|
|
|
|
|
|
|
} |
196
|
|
|
|
|
|
|
|
197
|
|
|
|
|
|
|
# read response line from server |
198
|
|
|
|
|
|
|
|
199
|
0
|
|
|
|
|
|
my $response; |
200
|
0
|
|
|
|
|
|
$buf = ''; |
201
|
|
|
|
|
|
|
|
202
|
|
|
|
|
|
|
# Inside this loop we will read the response line and all headers |
203
|
|
|
|
|
|
|
# found in the response. |
204
|
0
|
|
|
|
|
|
while (1) { |
205
|
0
|
0
|
0
|
|
|
|
die "read timeout" if $timeout && !$sel->can_read($timeout); |
206
|
0
|
|
|
|
|
|
$n = $socket->sysread($buf, $size, length($buf)); |
207
|
0
|
0
|
|
|
|
|
die $! unless defined($n); |
208
|
0
|
0
|
|
|
|
|
die "unexpected EOF before status line seen" unless $n; |
209
|
|
|
|
|
|
|
|
210
|
0
|
0
|
0
|
|
|
|
if ($buf =~ s/^(HTTP\/\d+\.\d+)[ \t]+(\d+)[ \t]*([^\012]*)\012//) { |
|
|
0
|
0
|
|
|
|
|
211
|
|
|
|
|
|
|
# HTTP/1.0 response or better |
212
|
0
|
|
|
|
|
|
my($ver,$code,$msg) = ($1, $2, $3); |
213
|
0
|
|
|
|
|
|
$msg =~ s/\015$//; |
214
|
0
|
|
|
|
|
|
$response = HTTP::Response->new($code, $msg); |
215
|
0
|
|
|
|
|
|
$response->protocol($ver); |
216
|
|
|
|
|
|
|
|
217
|
|
|
|
|
|
|
# ensure that we have read all headers. The headers will be |
218
|
|
|
|
|
|
|
# terminated by two blank lines |
219
|
0
|
|
0
|
|
|
|
until ($buf =~ /^\015?\012/ || $buf =~ /\015?\012\015?\012/) { |
220
|
|
|
|
|
|
|
# must read more if we can... |
221
|
0
|
0
|
0
|
|
|
|
die "read timeout" if $timeout && !$sel->can_read($timeout); |
222
|
0
|
|
|
|
|
|
my $old_len = length($buf); |
223
|
0
|
|
|
|
|
|
$n = $socket->sysread($buf, $size, $old_len); |
224
|
0
|
0
|
|
|
|
|
die $! unless defined($n); |
225
|
0
|
0
|
|
|
|
|
die "unexpected EOF before all headers seen" unless $n; |
226
|
|
|
|
|
|
|
} |
227
|
|
|
|
|
|
|
|
228
|
|
|
|
|
|
|
# now we start parsing the headers. The strategy is to |
229
|
|
|
|
|
|
|
# remove one line at a time from the beginning of the header |
230
|
|
|
|
|
|
|
# buffer ($res). |
231
|
0
|
|
|
|
|
|
my($key, $val); |
232
|
0
|
|
|
|
|
|
while ($buf =~ s/([^\012]*)\012//) { |
233
|
0
|
|
|
|
|
|
my $line = $1; |
234
|
|
|
|
|
|
|
|
235
|
|
|
|
|
|
|
# if we need to restore as content when illegal headers |
236
|
|
|
|
|
|
|
# are found. |
237
|
0
|
|
|
|
|
|
my $save = "$line\012"; |
238
|
|
|
|
|
|
|
|
239
|
0
|
|
|
|
|
|
$line =~ s/\015$//; |
240
|
0
|
0
|
|
|
|
|
last unless length $line; |
241
|
|
|
|
|
|
|
|
242
|
0
|
0
|
0
|
|
|
|
if ($line =~ /^([a-zA-Z0-9_\-.]+)\s*:\s*(.*)/) { |
|
|
0
|
|
|
|
|
|
243
|
0
|
0
|
|
|
|
|
$response->push_header($key, $val) if $key; |
244
|
0
|
|
|
|
|
|
($key, $val) = ($1, $2); |
245
|
|
|
|
|
|
|
} elsif ($line =~ /^\s+(.*)/ && $key) { |
246
|
0
|
|
|
|
|
|
$val .= " $1"; |
247
|
|
|
|
|
|
|
} else { |
248
|
0
|
|
|
|
|
|
$response->push_header("Client-Bad-Header-Line" => $line); |
249
|
|
|
|
|
|
|
} |
250
|
|
|
|
|
|
|
} |
251
|
0
|
0
|
|
|
|
|
$response->push_header($key, $val) if $key; |
252
|
0
|
|
|
|
|
|
last; |
253
|
|
|
|
|
|
|
|
254
|
|
|
|
|
|
|
} elsif ((length($buf) >= 5 and $buf !~ /^HTTP\//) or |
255
|
|
|
|
|
|
|
$buf =~ /\012/ ) { |
256
|
|
|
|
|
|
|
# HTTP/0.9 or worse |
257
|
0
|
|
|
|
|
|
$response = HTTP::Response->new(&HTTP::Status::RC_OK, "OK"); |
258
|
0
|
|
|
|
|
|
$response->protocol('HTTP/0.9'); |
259
|
0
|
|
|
|
|
|
last; |
260
|
|
|
|
|
|
|
|
261
|
|
|
|
|
|
|
} else { |
262
|
|
|
|
|
|
|
# need more data |
263
|
|
|
|
|
|
|
} |
264
|
|
|
|
|
|
|
}; |
265
|
0
|
|
|
|
|
|
$response->request($request); |
266
|
0
|
|
|
|
|
|
$self->_get_sock_info($response, $socket); |
267
|
|
|
|
|
|
|
|
268
|
0
|
0
|
|
|
|
|
if ($method eq "CONNECT") { |
269
|
0
|
|
|
|
|
|
$response->{client_socket} = $socket; # so it can be picked up |
270
|
0
|
|
|
|
|
|
$response->content($buf); # in case we read more than the headers |
271
|
0
|
|
|
|
|
|
return $response; |
272
|
|
|
|
|
|
|
} |
273
|
|
|
|
|
|
|
|
274
|
0
|
|
|
|
|
|
my $usebuf = length($buf) > 0; |
275
|
|
|
|
|
|
|
$response = $self->collect($arg, $response, sub { |
276
|
0
|
0
|
|
0
|
|
|
if ($usebuf) { |
277
|
0
|
|
|
|
|
|
$usebuf = 0; |
278
|
0
|
|
|
|
|
|
return \$buf; |
279
|
|
|
|
|
|
|
} |
280
|
0
|
0
|
0
|
|
|
|
die "read timeout" if $timeout && !$sel->can_read($timeout); |
281
|
0
|
|
|
|
|
|
my $n = $socket->sysread($buf, $size); |
282
|
0
|
0
|
|
|
|
|
die $! unless defined($n); |
283
|
0
|
|
|
|
|
|
return \$buf; |
284
|
0
|
|
|
|
|
|
} ); |
285
|
|
|
|
|
|
|
|
286
|
|
|
|
|
|
|
# $socket->close; |
287
|
|
|
|
|
|
|
|
288
|
0
|
|
|
|
|
|
$response; |
289
|
|
|
|
|
|
|
} |
290
|
|
|
|
|
|
|
|
291
|
|
|
|
|
|
|
1; |
292
|
|
|
|
|
|
|
|
293
|
|
|
|
|
|
|
__END__ |