Filename | /usr/share/perl5/LWP/UserAgent.pm |
Statements | Executed 0 statements in 0s |
Calls | P | F | Exclusive Time |
Inclusive Time |
Subroutine |
---|---|---|---|---|---|
1 | 1 | 1 | 1.70ms | 1.77ms | BEGIN@15 | LWP::UserAgent::
1 | 1 | 1 | 817µs | 839µs | BEGIN@10 | LWP::UserAgent::
1 | 1 | 1 | 164µs | 164µs | BEGIN@14 | LWP::UserAgent::
1 | 1 | 1 | 16µs | 30µs | BEGIN@375 | LWP::UserAgent::
1 | 1 | 1 | 13µs | 21µs | BEGIN@3 | LWP::UserAgent::
1 | 1 | 1 | 11µs | 46µs | BEGIN@4 | LWP::UserAgent::
1 | 1 | 1 | 8µs | 8µs | BEGIN@17 | LWP::UserAgent::
1 | 1 | 1 | 6µs | 6µs | BEGIN@11 | LWP::UserAgent::
1 | 1 | 1 | 4µs | 4µs | BEGIN@12 | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | __ANON__[:680] | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | __ANON__[:683] | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | __ANON__[:704] | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | __ANON__[:707] | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | __ANON__[:807] | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | _agent | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | _need_proxy | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | _new_response | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | _process_colonic_headers | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | add_handler | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | agent | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | clone | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | conn_cache | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | cookie_jar | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | credentials | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | default_header | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | default_headers | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | delete | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | env_proxy | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | from | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | get | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | get_basic_credentials | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | get_my_handler | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | handlers | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | head | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | is_online | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | is_protocol_supported | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | local_address | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | max_redirect | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | max_size | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | mirror | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | new | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | no_proxy | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | parse_head | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | post | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | prepare_request | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | progress | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | protocols_allowed | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | protocols_forbidden | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | proxy | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | put | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | redirect_ok | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | remove_handler | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | request | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | requests_redirectable | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | run_handlers | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | send_request | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | set_my_handler | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | show_progress | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | simple_request | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | ssl_opts | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | timeout | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | use_alarm | LWP::UserAgent::
0 | 0 | 0 | 0s | 0s | use_eval | LWP::UserAgent::
Line | State ments |
Time on line |
Calls | Time in subs |
Code |
---|---|---|---|---|---|
1 | package LWP::UserAgent; | ||||
2 | |||||
3 | 2 | 29µs | # spent 21µs (13+8) within LWP::UserAgent::BEGIN@3 which was called:
# once (13µs+8µs) by Authen::CAS::Client::BEGIN@9 at line 3 # spent 21µs making 1 call to LWP::UserAgent::BEGIN@3
# spent 8µs making 1 call to strict::import | ||
4 | 2 | 80µs | # spent 46µs (11+35) within LWP::UserAgent::BEGIN@4 which was called:
# once (11µs+35µs) by Authen::CAS::Client::BEGIN@9 at line 4 # spent 46µs making 1 call to LWP::UserAgent::BEGIN@4
# spent 35µs making 1 call to vars::import | ||
5 | |||||
6 | require LWP::MemberMixin; | ||||
7 | @ISA = qw(LWP::MemberMixin); | ||||
8 | $VERSION = "6.06"; | ||||
9 | |||||
10 | 1 | 839µs | # spent 839µs (817+22) within LWP::UserAgent::BEGIN@10 which was called:
# once (817µs+22µs) by Authen::CAS::Client::BEGIN@9 at line 10 # spent 839µs making 1 call to LWP::UserAgent::BEGIN@10 | ||
11 | 1 | 6µs | # spent 6µs within LWP::UserAgent::BEGIN@11 which was called:
# once (6µs+0s) by Authen::CAS::Client::BEGIN@9 at line 11 # spent 6µs making 1 call to LWP::UserAgent::BEGIN@11 | ||
12 | 1 | 4µs | # spent 4µs within LWP::UserAgent::BEGIN@12 which was called:
# once (4µs+0s) by Authen::CAS::Client::BEGIN@9 at line 12 # spent 4µs making 1 call to LWP::UserAgent::BEGIN@12 | ||
13 | |||||
14 | 1 | 164µs | # spent 164µs within LWP::UserAgent::BEGIN@14 which was called:
# once (164µs+0s) by Authen::CAS::Client::BEGIN@9 at line 14 # spent 164µs making 1 call to LWP::UserAgent::BEGIN@14 | ||
15 | 1 | 1.77ms | # spent 1.77ms (1.70+76µs) within LWP::UserAgent::BEGIN@15 which was called:
# once (1.70ms+76µs) by Authen::CAS::Client::BEGIN@9 at line 15 # spent 1.77ms making 1 call to LWP::UserAgent::BEGIN@15 | ||
16 | |||||
17 | 1 | 8µs | # spent 8µs within LWP::UserAgent::BEGIN@17 which was called:
# once (8µs+0s) by Authen::CAS::Client::BEGIN@9 at line 17 # spent 8µs making 1 call to LWP::UserAgent::BEGIN@17 | ||
18 | |||||
19 | |||||
20 | sub new | ||||
21 | { | ||||
22 | # Check for common user mistake | ||||
23 | Carp::croak("Options to LWP::UserAgent should be key/value pairs, not hash reference") | ||||
24 | if ref($_[1]) eq 'HASH'; | ||||
25 | |||||
26 | my($class, %cnf) = @_; | ||||
27 | |||||
28 | my $agent = delete $cnf{agent}; | ||||
29 | my $from = delete $cnf{from}; | ||||
30 | my $def_headers = delete $cnf{default_headers}; | ||||
31 | my $timeout = delete $cnf{timeout}; | ||||
32 | $timeout = 3*60 unless defined $timeout; | ||||
33 | my $local_address = delete $cnf{local_address}; | ||||
34 | my $ssl_opts = delete $cnf{ssl_opts} || {}; | ||||
35 | unless (exists $ssl_opts->{verify_hostname}) { | ||||
36 | # The processing of HTTPS_CA_* below is for compatibility with Crypt::SSLeay | ||||
37 | if (exists $ENV{PERL_LWP_SSL_VERIFY_HOSTNAME}) { | ||||
38 | $ssl_opts->{verify_hostname} = $ENV{PERL_LWP_SSL_VERIFY_HOSTNAME}; | ||||
39 | } | ||||
40 | elsif ($ENV{HTTPS_CA_FILE} || $ENV{HTTPS_CA_DIR}) { | ||||
41 | # Crypt-SSLeay compatibility (verify peer certificate; but not the hostname) | ||||
42 | $ssl_opts->{verify_hostname} = 0; | ||||
43 | $ssl_opts->{SSL_verify_mode} = 1; | ||||
44 | } | ||||
45 | else { | ||||
46 | $ssl_opts->{verify_hostname} = 1; | ||||
47 | } | ||||
48 | } | ||||
49 | unless (exists $ssl_opts->{SSL_ca_file}) { | ||||
50 | if (my $ca_file = $ENV{PERL_LWP_SSL_CA_FILE} || $ENV{HTTPS_CA_FILE}) { | ||||
51 | $ssl_opts->{SSL_ca_file} = $ca_file; | ||||
52 | } | ||||
53 | } | ||||
54 | unless (exists $ssl_opts->{SSL_ca_path}) { | ||||
55 | if (my $ca_path = $ENV{PERL_LWP_SSL_CA_PATH} || $ENV{HTTPS_CA_DIR}) { | ||||
56 | $ssl_opts->{SSL_ca_path} = $ca_path; | ||||
57 | } | ||||
58 | } | ||||
59 | my $use_eval = delete $cnf{use_eval}; | ||||
60 | $use_eval = 1 unless defined $use_eval; | ||||
61 | my $parse_head = delete $cnf{parse_head}; | ||||
62 | $parse_head = 1 unless defined $parse_head; | ||||
63 | my $show_progress = delete $cnf{show_progress}; | ||||
64 | my $max_size = delete $cnf{max_size}; | ||||
65 | my $max_redirect = delete $cnf{max_redirect}; | ||||
66 | $max_redirect = 7 unless defined $max_redirect; | ||||
67 | my $env_proxy = exists $cnf{env_proxy} ? delete $cnf{env_proxy} : $ENV{PERL_LWP_ENV_PROXY}; | ||||
68 | |||||
69 | my $cookie_jar = delete $cnf{cookie_jar}; | ||||
70 | my $conn_cache = delete $cnf{conn_cache}; | ||||
71 | my $keep_alive = delete $cnf{keep_alive}; | ||||
72 | |||||
73 | Carp::croak("Can't mix conn_cache and keep_alive") | ||||
74 | if $conn_cache && $keep_alive; | ||||
75 | |||||
76 | my $protocols_allowed = delete $cnf{protocols_allowed}; | ||||
77 | my $protocols_forbidden = delete $cnf{protocols_forbidden}; | ||||
78 | |||||
79 | my $requests_redirectable = delete $cnf{requests_redirectable}; | ||||
80 | $requests_redirectable = ['GET', 'HEAD'] | ||||
81 | unless defined $requests_redirectable; | ||||
82 | |||||
83 | # Actually ""s are just as good as 0's, but for concision we'll just say: | ||||
84 | Carp::croak("protocols_allowed has to be an arrayref or 0, not \"$protocols_allowed\"!") | ||||
85 | if $protocols_allowed and ref($protocols_allowed) ne 'ARRAY'; | ||||
86 | Carp::croak("protocols_forbidden has to be an arrayref or 0, not \"$protocols_forbidden\"!") | ||||
87 | if $protocols_forbidden and ref($protocols_forbidden) ne 'ARRAY'; | ||||
88 | Carp::croak("requests_redirectable has to be an arrayref or 0, not \"$requests_redirectable\"!") | ||||
89 | if $requests_redirectable and ref($requests_redirectable) ne 'ARRAY'; | ||||
90 | |||||
91 | |||||
92 | if (%cnf && $^W) { | ||||
93 | Carp::carp("Unrecognized LWP::UserAgent options: @{[sort keys %cnf]}"); | ||||
94 | } | ||||
95 | |||||
96 | my $self = bless { | ||||
97 | def_headers => $def_headers, | ||||
98 | timeout => $timeout, | ||||
99 | local_address => $local_address, | ||||
100 | ssl_opts => $ssl_opts, | ||||
101 | use_eval => $use_eval, | ||||
102 | show_progress=> $show_progress, | ||||
103 | max_size => $max_size, | ||||
104 | max_redirect => $max_redirect, | ||||
105 | proxy => {}, | ||||
106 | no_proxy => [], | ||||
107 | protocols_allowed => $protocols_allowed, | ||||
108 | protocols_forbidden => $protocols_forbidden, | ||||
109 | requests_redirectable => $requests_redirectable, | ||||
110 | }, $class; | ||||
111 | |||||
112 | $self->agent(defined($agent) ? $agent : $class->_agent) | ||||
113 | if defined($agent) || !$def_headers || !$def_headers->header("User-Agent"); | ||||
114 | $self->from($from) if $from; | ||||
115 | $self->cookie_jar($cookie_jar) if $cookie_jar; | ||||
116 | $self->parse_head($parse_head); | ||||
117 | $self->env_proxy if $env_proxy; | ||||
118 | |||||
119 | $self->protocols_allowed( $protocols_allowed ) if $protocols_allowed; | ||||
120 | $self->protocols_forbidden($protocols_forbidden) if $protocols_forbidden; | ||||
121 | |||||
122 | if ($keep_alive) { | ||||
123 | $conn_cache ||= { total_capacity => $keep_alive }; | ||||
124 | } | ||||
125 | $self->conn_cache($conn_cache) if $conn_cache; | ||||
126 | |||||
127 | return $self; | ||||
128 | } | ||||
129 | |||||
130 | |||||
131 | sub send_request | ||||
132 | { | ||||
133 | my($self, $request, $arg, $size) = @_; | ||||
134 | my($method, $url) = ($request->method, $request->uri); | ||||
135 | my $scheme = $url->scheme; | ||||
136 | |||||
137 | local($SIG{__DIE__}); # protect against user defined die handlers | ||||
138 | |||||
139 | $self->progress("begin", $request); | ||||
140 | |||||
141 | my $response = $self->run_handlers("request_send", $request); | ||||
142 | |||||
143 | unless ($response) { | ||||
144 | my $protocol; | ||||
145 | |||||
146 | { | ||||
147 | # Honor object-specific restrictions by forcing protocol objects | ||||
148 | # into class LWP::Protocol::nogo. | ||||
149 | my $x; | ||||
150 | if($x = $self->protocols_allowed) { | ||||
151 | if (grep lc($_) eq $scheme, @$x) { | ||||
152 | } | ||||
153 | else { | ||||
154 | require LWP::Protocol::nogo; | ||||
155 | $protocol = LWP::Protocol::nogo->new; | ||||
156 | } | ||||
157 | } | ||||
158 | elsif ($x = $self->protocols_forbidden) { | ||||
159 | if(grep lc($_) eq $scheme, @$x) { | ||||
160 | require LWP::Protocol::nogo; | ||||
161 | $protocol = LWP::Protocol::nogo->new; | ||||
162 | } | ||||
163 | } | ||||
164 | # else fall thru and create the protocol object normally | ||||
165 | } | ||||
166 | |||||
167 | # Locate protocol to use | ||||
168 | my $proxy = $request->{proxy}; | ||||
169 | if ($proxy) { | ||||
170 | $scheme = $proxy->scheme; | ||||
171 | } | ||||
172 | |||||
173 | unless ($protocol) { | ||||
174 | $protocol = eval { LWP::Protocol::create($scheme, $self) }; | ||||
175 | if ($@) { | ||||
176 | $@ =~ s/ at .* line \d+.*//s; # remove file/line number | ||||
177 | $response = _new_response($request, &HTTP::Status::RC_NOT_IMPLEMENTED, $@); | ||||
178 | if ($scheme eq "https") { | ||||
179 | $response->message($response->message . " (LWP::Protocol::https not installed)"); | ||||
180 | $response->content_type("text/plain"); | ||||
181 | $response->content(<<EOT); | ||||
182 | LWP will support https URLs if the LWP::Protocol::https module | ||||
183 | is installed. | ||||
184 | EOT | ||||
185 | } | ||||
186 | } | ||||
187 | } | ||||
188 | |||||
189 | if (!$response && $self->{use_eval}) { | ||||
190 | # we eval, and turn dies into responses below | ||||
191 | eval { | ||||
192 | $response = $protocol->request($request, $proxy, $arg, $size, $self->{timeout}) || | ||||
193 | die "No response returned by $protocol"; | ||||
194 | }; | ||||
195 | if ($@) { | ||||
196 | if (UNIVERSAL::isa($@, "HTTP::Response")) { | ||||
197 | $response = $@; | ||||
198 | $response->request($request); | ||||
199 | } | ||||
200 | else { | ||||
201 | my $full = $@; | ||||
202 | (my $status = $@) =~ s/\n.*//s; | ||||
203 | $status =~ s/ at .* line \d+.*//s; # remove file/line number | ||||
204 | my $code = ($status =~ s/^(\d\d\d)\s+//) ? $1 : &HTTP::Status::RC_INTERNAL_SERVER_ERROR; | ||||
205 | $response = _new_response($request, $code, $status, $full); | ||||
206 | } | ||||
207 | } | ||||
208 | } | ||||
209 | elsif (!$response) { | ||||
210 | $response = $protocol->request($request, $proxy, | ||||
211 | $arg, $size, $self->{timeout}); | ||||
212 | # XXX: Should we die unless $response->is_success ??? | ||||
213 | } | ||||
214 | } | ||||
215 | |||||
216 | $response->request($request); # record request for reference | ||||
217 | $response->header("Client-Date" => HTTP::Date::time2str(time)); | ||||
218 | |||||
219 | $self->run_handlers("response_done", $response); | ||||
220 | |||||
221 | $self->progress("end", $response); | ||||
222 | return $response; | ||||
223 | } | ||||
224 | |||||
225 | |||||
226 | sub prepare_request | ||||
227 | { | ||||
228 | my($self, $request) = @_; | ||||
229 | die "Method missing" unless $request->method; | ||||
230 | my $url = $request->uri; | ||||
231 | die "URL missing" unless $url; | ||||
232 | die "URL must be absolute" unless $url->scheme; | ||||
233 | |||||
234 | $self->run_handlers("request_preprepare", $request); | ||||
235 | |||||
236 | if (my $def_headers = $self->{def_headers}) { | ||||
237 | for my $h ($def_headers->header_field_names) { | ||||
238 | $request->init_header($h => [$def_headers->header($h)]); | ||||
239 | } | ||||
240 | } | ||||
241 | |||||
242 | $self->run_handlers("request_prepare", $request); | ||||
243 | |||||
244 | return $request; | ||||
245 | } | ||||
246 | |||||
247 | |||||
248 | sub simple_request | ||||
249 | { | ||||
250 | my($self, $request, $arg, $size) = @_; | ||||
251 | |||||
252 | # sanity check the request passed in | ||||
253 | if (defined $request) { | ||||
254 | if (ref $request) { | ||||
255 | Carp::croak("You need a request object, not a " . ref($request) . " object") | ||||
256 | if ref($request) eq 'ARRAY' or ref($request) eq 'HASH' or | ||||
257 | !$request->can('method') or !$request->can('uri'); | ||||
258 | } | ||||
259 | else { | ||||
260 | Carp::croak("You need a request object, not '$request'"); | ||||
261 | } | ||||
262 | } | ||||
263 | else { | ||||
264 | Carp::croak("No request object passed in"); | ||||
265 | } | ||||
266 | |||||
267 | eval { | ||||
268 | $request = $self->prepare_request($request); | ||||
269 | }; | ||||
270 | if ($@) { | ||||
271 | $@ =~ s/ at .* line \d+.*//s; # remove file/line number | ||||
272 | return _new_response($request, &HTTP::Status::RC_BAD_REQUEST, $@); | ||||
273 | } | ||||
274 | return $self->send_request($request, $arg, $size); | ||||
275 | } | ||||
276 | |||||
277 | |||||
278 | sub request | ||||
279 | { | ||||
280 | my($self, $request, $arg, $size, $previous) = @_; | ||||
281 | |||||
282 | my $response = $self->simple_request($request, $arg, $size); | ||||
283 | $response->previous($previous) if $previous; | ||||
284 | |||||
285 | if ($response->redirects >= $self->{max_redirect}) { | ||||
286 | $response->header("Client-Warning" => | ||||
287 | "Redirect loop detected (max_redirect = $self->{max_redirect})"); | ||||
288 | return $response; | ||||
289 | } | ||||
290 | |||||
291 | if (my $req = $self->run_handlers("response_redirect", $response)) { | ||||
292 | return $self->request($req, $arg, $size, $response); | ||||
293 | } | ||||
294 | |||||
295 | my $code = $response->code; | ||||
296 | |||||
297 | if ($code == &HTTP::Status::RC_MOVED_PERMANENTLY or | ||||
298 | $code == &HTTP::Status::RC_FOUND or | ||||
299 | $code == &HTTP::Status::RC_SEE_OTHER or | ||||
300 | $code == &HTTP::Status::RC_TEMPORARY_REDIRECT) | ||||
301 | { | ||||
302 | my $referral = $request->clone; | ||||
303 | |||||
304 | # These headers should never be forwarded | ||||
305 | $referral->remove_header('Host', 'Cookie'); | ||||
306 | |||||
307 | if ($referral->header('Referer') && | ||||
308 | $request->uri->scheme eq 'https' && | ||||
309 | $referral->uri->scheme eq 'http') | ||||
310 | { | ||||
311 | # RFC 2616, section 15.1.3. | ||||
312 | # https -> http redirect, suppressing Referer | ||||
313 | $referral->remove_header('Referer'); | ||||
314 | } | ||||
315 | |||||
316 | if ($code == &HTTP::Status::RC_SEE_OTHER || | ||||
317 | $code == &HTTP::Status::RC_FOUND) | ||||
318 | { | ||||
319 | my $method = uc($referral->method); | ||||
320 | unless ($method eq "GET" || $method eq "HEAD") { | ||||
321 | $referral->method("GET"); | ||||
322 | $referral->content(""); | ||||
323 | $referral->remove_content_headers; | ||||
324 | } | ||||
325 | } | ||||
326 | |||||
327 | # And then we update the URL based on the Location:-header. | ||||
328 | my $referral_uri = $response->header('Location'); | ||||
329 | { | ||||
330 | # Some servers erroneously return a relative URL for redirects, | ||||
331 | # so make it absolute if it not already is. | ||||
332 | local $URI::ABS_ALLOW_RELATIVE_SCHEME = 1; | ||||
333 | my $base = $response->base; | ||||
334 | $referral_uri = "" unless defined $referral_uri; | ||||
335 | $referral_uri = $HTTP::URI_CLASS->new($referral_uri, $base) | ||||
336 | ->abs($base); | ||||
337 | } | ||||
338 | $referral->uri($referral_uri); | ||||
339 | |||||
340 | return $response unless $self->redirect_ok($referral, $response); | ||||
341 | return $self->request($referral, $arg, $size, $response); | ||||
342 | |||||
343 | } | ||||
344 | elsif ($code == &HTTP::Status::RC_UNAUTHORIZED || | ||||
345 | $code == &HTTP::Status::RC_PROXY_AUTHENTICATION_REQUIRED | ||||
346 | ) | ||||
347 | { | ||||
348 | my $proxy = ($code == &HTTP::Status::RC_PROXY_AUTHENTICATION_REQUIRED); | ||||
349 | my $ch_header = $proxy || $request->method eq 'CONNECT' | ||||
350 | ? "Proxy-Authenticate" : "WWW-Authenticate"; | ||||
351 | my @challenge = $response->header($ch_header); | ||||
352 | unless (@challenge) { | ||||
353 | $response->header("Client-Warning" => | ||||
354 | "Missing Authenticate header"); | ||||
355 | return $response; | ||||
356 | } | ||||
357 | |||||
358 | require HTTP::Headers::Util; | ||||
359 | CHALLENGE: for my $challenge (@challenge) { | ||||
360 | $challenge =~ tr/,/;/; # "," is used to separate auth-params!! | ||||
361 | ($challenge) = HTTP::Headers::Util::split_header_words($challenge); | ||||
362 | my $scheme = shift(@$challenge); | ||||
363 | shift(@$challenge); # no value | ||||
364 | $challenge = { @$challenge }; # make rest into a hash | ||||
365 | |||||
366 | unless ($scheme =~ /^([a-z]+(?:-[a-z]+)*)$/) { | ||||
367 | $response->header("Client-Warning" => | ||||
368 | "Bad authentication scheme '$scheme'"); | ||||
369 | return $response; | ||||
370 | } | ||||
371 | $scheme = $1; # untainted now | ||||
372 | my $class = "LWP::Authen::\u$scheme"; | ||||
373 | $class =~ s/-/_/g; | ||||
374 | |||||
375 | 2 | 45µs | # spent 30µs (16+15) within LWP::UserAgent::BEGIN@375 which was called:
# once (16µs+15µs) by Authen::CAS::Client::BEGIN@9 at line 375 # spent 30µs making 1 call to LWP::UserAgent::BEGIN@375
# spent 15µs making 1 call to strict::unimport | ||
376 | unless (%{"$class\::"}) { | ||||
377 | # try to load it | ||||
378 | eval "require $class"; | ||||
379 | if ($@) { | ||||
380 | if ($@ =~ /^Can\'t locate/) { | ||||
381 | $response->header("Client-Warning" => | ||||
382 | "Unsupported authentication scheme '$scheme'"); | ||||
383 | } | ||||
384 | else { | ||||
385 | $response->header("Client-Warning" => $@); | ||||
386 | } | ||||
387 | next CHALLENGE; | ||||
388 | } | ||||
389 | } | ||||
390 | unless ($class->can("authenticate")) { | ||||
391 | $response->header("Client-Warning" => | ||||
392 | "Unsupported authentication scheme '$scheme'"); | ||||
393 | next CHALLENGE; | ||||
394 | } | ||||
395 | return $class->authenticate($self, $proxy, $challenge, $response, | ||||
396 | $request, $arg, $size); | ||||
397 | } | ||||
398 | return $response; | ||||
399 | } | ||||
400 | return $response; | ||||
401 | } | ||||
402 | |||||
403 | |||||
404 | # | ||||
405 | # Now the shortcuts... | ||||
406 | # | ||||
407 | sub get { | ||||
408 | require HTTP::Request::Common; | ||||
409 | my($self, @parameters) = @_; | ||||
410 | my @suff = $self->_process_colonic_headers(\@parameters,1); | ||||
411 | return $self->request( HTTP::Request::Common::GET( @parameters ), @suff ); | ||||
412 | } | ||||
413 | |||||
414 | |||||
415 | sub post { | ||||
416 | require HTTP::Request::Common; | ||||
417 | my($self, @parameters) = @_; | ||||
418 | my @suff = $self->_process_colonic_headers(\@parameters, (ref($parameters[1]) ? 2 : 1)); | ||||
419 | return $self->request( HTTP::Request::Common::POST( @parameters ), @suff ); | ||||
420 | } | ||||
421 | |||||
422 | |||||
423 | sub head { | ||||
424 | require HTTP::Request::Common; | ||||
425 | my($self, @parameters) = @_; | ||||
426 | my @suff = $self->_process_colonic_headers(\@parameters,1); | ||||
427 | return $self->request( HTTP::Request::Common::HEAD( @parameters ), @suff ); | ||||
428 | } | ||||
429 | |||||
430 | |||||
431 | sub put { | ||||
432 | require HTTP::Request::Common; | ||||
433 | my($self, @parameters) = @_; | ||||
434 | my @suff = $self->_process_colonic_headers(\@parameters, (ref($parameters[1]) ? 2 : 1)); | ||||
435 | return $self->request( HTTP::Request::Common::PUT( @parameters ), @suff ); | ||||
436 | } | ||||
437 | |||||
438 | |||||
439 | sub delete { | ||||
440 | require HTTP::Request::Common; | ||||
441 | my($self, @parameters) = @_; | ||||
442 | my @suff = $self->_process_colonic_headers(\@parameters,1); | ||||
443 | return $self->request( HTTP::Request::Common::DELETE( @parameters ), @suff ); | ||||
444 | } | ||||
445 | |||||
446 | |||||
447 | sub _process_colonic_headers { | ||||
448 | # Process :content_cb / :content_file / :read_size_hint headers. | ||||
449 | my($self, $args, $start_index) = @_; | ||||
450 | |||||
451 | my($arg, $size); | ||||
452 | for(my $i = $start_index; $i < @$args; $i += 2) { | ||||
453 | next unless defined $args->[$i]; | ||||
454 | |||||
455 | #printf "Considering %s => %s\n", $args->[$i], $args->[$i + 1]; | ||||
456 | |||||
457 | if($args->[$i] eq ':content_cb') { | ||||
458 | # Some sanity-checking... | ||||
459 | $arg = $args->[$i + 1]; | ||||
460 | Carp::croak("A :content_cb value can't be undef") unless defined $arg; | ||||
461 | Carp::croak("A :content_cb value must be a coderef") | ||||
462 | unless ref $arg and UNIVERSAL::isa($arg, 'CODE'); | ||||
463 | |||||
464 | } | ||||
465 | elsif ($args->[$i] eq ':content_file') { | ||||
466 | $arg = $args->[$i + 1]; | ||||
467 | |||||
468 | # Some sanity-checking... | ||||
469 | Carp::croak("A :content_file value can't be undef") | ||||
470 | unless defined $arg; | ||||
471 | Carp::croak("A :content_file value can't be a reference") | ||||
472 | if ref $arg; | ||||
473 | Carp::croak("A :content_file value can't be \"\"") | ||||
474 | unless length $arg; | ||||
475 | |||||
476 | } | ||||
477 | elsif ($args->[$i] eq ':read_size_hint') { | ||||
478 | $size = $args->[$i + 1]; | ||||
479 | # Bother checking it? | ||||
480 | |||||
481 | } | ||||
482 | else { | ||||
483 | next; | ||||
484 | } | ||||
485 | splice @$args, $i, 2; | ||||
486 | $i -= 2; | ||||
487 | } | ||||
488 | |||||
489 | # And return a suitable suffix-list for request(REQ,...) | ||||
490 | |||||
491 | return unless defined $arg; | ||||
492 | return $arg, $size if defined $size; | ||||
493 | return $arg; | ||||
494 | } | ||||
495 | |||||
496 | |||||
497 | sub is_online { | ||||
498 | my $self = shift; | ||||
499 | return 1 if $self->get("http://www.msftncsi.com/ncsi.txt")->content eq "Microsoft NCSI"; | ||||
500 | return 1 if $self->get("http://www.apple.com")->content =~ m,<title>Apple</title>,; | ||||
501 | return 0; | ||||
502 | } | ||||
503 | |||||
504 | |||||
505 | my @ANI = qw(- \ | /); | ||||
506 | |||||
507 | sub progress { | ||||
508 | my($self, $status, $m) = @_; | ||||
509 | return unless $self->{show_progress}; | ||||
510 | |||||
511 | local($,, $\); | ||||
512 | if ($status eq "begin") { | ||||
513 | print STDERR "** ", $m->method, " ", $m->uri, " ==> "; | ||||
514 | $self->{progress_start} = time; | ||||
515 | $self->{progress_lastp} = ""; | ||||
516 | $self->{progress_ani} = 0; | ||||
517 | } | ||||
518 | elsif ($status eq "end") { | ||||
519 | delete $self->{progress_lastp}; | ||||
520 | delete $self->{progress_ani}; | ||||
521 | print STDERR $m->status_line; | ||||
522 | my $t = time - delete $self->{progress_start}; | ||||
523 | print STDERR " (${t}s)" if $t; | ||||
524 | print STDERR "\n"; | ||||
525 | } | ||||
526 | elsif ($status eq "tick") { | ||||
527 | print STDERR "$ANI[$self->{progress_ani}++]\b"; | ||||
528 | $self->{progress_ani} %= @ANI; | ||||
529 | } | ||||
530 | else { | ||||
531 | my $p = sprintf "%3.0f%%", $status * 100; | ||||
532 | return if $p eq $self->{progress_lastp}; | ||||
533 | print STDERR "$p\b\b\b\b"; | ||||
534 | $self->{progress_lastp} = $p; | ||||
535 | } | ||||
536 | STDERR->flush; | ||||
537 | } | ||||
538 | |||||
539 | |||||
540 | # | ||||
541 | # This whole allow/forbid thing is based on man 1 at's way of doing things. | ||||
542 | # | ||||
543 | sub is_protocol_supported | ||||
544 | { | ||||
545 | my($self, $scheme) = @_; | ||||
546 | if (ref $scheme) { | ||||
547 | # assume we got a reference to an URI object | ||||
548 | $scheme = $scheme->scheme; | ||||
549 | } | ||||
550 | else { | ||||
551 | Carp::croak("Illegal scheme '$scheme' passed to is_protocol_supported") | ||||
552 | if $scheme =~ /\W/; | ||||
553 | $scheme = lc $scheme; | ||||
554 | } | ||||
555 | |||||
556 | my $x; | ||||
557 | if(ref($self) and $x = $self->protocols_allowed) { | ||||
558 | return 0 unless grep lc($_) eq $scheme, @$x; | ||||
559 | } | ||||
560 | elsif (ref($self) and $x = $self->protocols_forbidden) { | ||||
561 | return 0 if grep lc($_) eq $scheme, @$x; | ||||
562 | } | ||||
563 | |||||
564 | local($SIG{__DIE__}); # protect against user defined die handlers | ||||
565 | $x = LWP::Protocol::implementor($scheme); | ||||
566 | return 1 if $x and $x ne 'LWP::Protocol::nogo'; | ||||
567 | return 0; | ||||
568 | } | ||||
569 | |||||
570 | |||||
571 | sub protocols_allowed { shift->_elem('protocols_allowed' , @_) } | ||||
572 | sub protocols_forbidden { shift->_elem('protocols_forbidden' , @_) } | ||||
573 | sub requests_redirectable { shift->_elem('requests_redirectable', @_) } | ||||
574 | |||||
575 | |||||
576 | sub redirect_ok | ||||
577 | { | ||||
578 | # RFC 2616, section 10.3.2 and 10.3.3 say: | ||||
579 | # If the 30[12] status code is received in response to a request other | ||||
580 | # than GET or HEAD, the user agent MUST NOT automatically redirect the | ||||
581 | # request unless it can be confirmed by the user, since this might | ||||
582 | # change the conditions under which the request was issued. | ||||
583 | |||||
584 | # Note that this routine used to be just: | ||||
585 | # return 0 if $_[1]->method eq "POST"; return 1; | ||||
586 | |||||
587 | my($self, $new_request, $response) = @_; | ||||
588 | my $method = $response->request->method; | ||||
589 | return 0 unless grep $_ eq $method, | ||||
590 | @{ $self->requests_redirectable || [] }; | ||||
591 | |||||
592 | if ($new_request->uri->scheme eq 'file') { | ||||
593 | $response->header("Client-Warning" => | ||||
594 | "Can't redirect to a file:// URL!"); | ||||
595 | return 0; | ||||
596 | } | ||||
597 | |||||
598 | # Otherwise it's apparently okay... | ||||
599 | return 1; | ||||
600 | } | ||||
601 | |||||
602 | |||||
603 | sub credentials | ||||
604 | { | ||||
605 | my $self = shift; | ||||
606 | my $netloc = lc(shift); | ||||
607 | my $realm = shift || ""; | ||||
608 | my $old = $self->{basic_authentication}{$netloc}{$realm}; | ||||
609 | if (@_) { | ||||
610 | $self->{basic_authentication}{$netloc}{$realm} = [@_]; | ||||
611 | } | ||||
612 | return unless $old; | ||||
613 | return @$old if wantarray; | ||||
614 | return join(":", @$old); | ||||
615 | } | ||||
616 | |||||
617 | |||||
618 | sub get_basic_credentials | ||||
619 | { | ||||
620 | my($self, $realm, $uri, $proxy) = @_; | ||||
621 | return if $proxy; | ||||
622 | return $self->credentials($uri->host_port, $realm); | ||||
623 | } | ||||
624 | |||||
625 | |||||
626 | sub timeout { shift->_elem('timeout', @_); } | ||||
627 | sub local_address{ shift->_elem('local_address',@_); } | ||||
628 | sub max_size { shift->_elem('max_size', @_); } | ||||
629 | sub max_redirect { shift->_elem('max_redirect', @_); } | ||||
630 | sub show_progress{ shift->_elem('show_progress', @_); } | ||||
631 | |||||
632 | sub ssl_opts { | ||||
633 | my $self = shift; | ||||
634 | if (@_ == 1) { | ||||
635 | my $k = shift; | ||||
636 | return $self->{ssl_opts}{$k}; | ||||
637 | } | ||||
638 | if (@_) { | ||||
639 | my $old; | ||||
640 | while (@_) { | ||||
641 | my($k, $v) = splice(@_, 0, 2); | ||||
642 | $old = $self->{ssl_opts}{$k} unless @_; | ||||
643 | if (defined $v) { | ||||
644 | $self->{ssl_opts}{$k} = $v; | ||||
645 | } | ||||
646 | else { | ||||
647 | delete $self->{ssl_opts}{$k}; | ||||
648 | } | ||||
649 | } | ||||
650 | %{$self->{ssl_opts}} = (%{$self->{ssl_opts}}, @_); | ||||
651 | return $old; | ||||
652 | } | ||||
653 | |||||
654 | return keys %{$self->{ssl_opts}}; | ||||
655 | } | ||||
656 | |||||
657 | sub parse_head { | ||||
658 | my $self = shift; | ||||
659 | if (@_) { | ||||
660 | my $flag = shift; | ||||
661 | my $parser; | ||||
662 | my $old = $self->set_my_handler("response_header", $flag ? sub { | ||||
663 | my($response, $ua) = @_; | ||||
664 | require HTML::HeadParser; | ||||
665 | $parser = HTML::HeadParser->new; | ||||
666 | $parser->xml_mode(1) if $response->content_is_xhtml; | ||||
667 | $parser->utf8_mode(1) if $] >= 5.008 && $HTML::Parser::VERSION >= 3.40; | ||||
668 | |||||
669 | push(@{$response->{handlers}{response_data}}, { | ||||
670 | callback => sub { | ||||
671 | return unless $parser; | ||||
672 | unless ($parser->parse($_[3])) { | ||||
673 | my $h = $parser->header; | ||||
674 | my $r = $_[0]; | ||||
675 | for my $f ($h->header_field_names) { | ||||
676 | $r->init_header($f, [$h->header($f)]); | ||||
677 | } | ||||
678 | undef($parser); | ||||
679 | } | ||||
680 | }, | ||||
681 | }); | ||||
682 | |||||
683 | } : undef, | ||||
684 | m_media_type => "html", | ||||
685 | ); | ||||
686 | return !!$old; | ||||
687 | } | ||||
688 | else { | ||||
689 | return !!$self->get_my_handler("response_header"); | ||||
690 | } | ||||
691 | } | ||||
692 | |||||
693 | sub cookie_jar { | ||||
694 | my $self = shift; | ||||
695 | my $old = $self->{cookie_jar}; | ||||
696 | if (@_) { | ||||
697 | my $jar = shift; | ||||
698 | if (ref($jar) eq "HASH") { | ||||
699 | require HTTP::Cookies; | ||||
700 | $jar = HTTP::Cookies->new(%$jar); | ||||
701 | } | ||||
702 | $self->{cookie_jar} = $jar; | ||||
703 | $self->set_my_handler("request_prepare", | ||||
704 | $jar ? sub { $jar->add_cookie_header($_[0]); } : undef, | ||||
705 | ); | ||||
706 | $self->set_my_handler("response_done", | ||||
707 | $jar ? sub { $jar->extract_cookies($_[0]); } : undef, | ||||
708 | ); | ||||
709 | } | ||||
710 | $old; | ||||
711 | } | ||||
712 | |||||
713 | sub default_headers { | ||||
714 | my $self = shift; | ||||
715 | my $old = $self->{def_headers} ||= HTTP::Headers->new; | ||||
716 | if (@_) { | ||||
717 | Carp::croak("default_headers not set to HTTP::Headers compatible object") | ||||
718 | unless @_ == 1 && $_[0]->can("header_field_names"); | ||||
719 | $self->{def_headers} = shift; | ||||
720 | } | ||||
721 | return $old; | ||||
722 | } | ||||
723 | |||||
724 | sub default_header { | ||||
725 | my $self = shift; | ||||
726 | return $self->default_headers->header(@_); | ||||
727 | } | ||||
728 | |||||
729 | sub _agent { "libwww-perl/$LWP::VERSION" } | ||||
730 | |||||
731 | sub agent { | ||||
732 | my $self = shift; | ||||
733 | if (@_) { | ||||
734 | my $agent = shift; | ||||
735 | if ($agent) { | ||||
736 | $agent .= $self->_agent if $agent =~ /\s+$/; | ||||
737 | } | ||||
738 | else { | ||||
739 | undef($agent) | ||||
740 | } | ||||
741 | return $self->default_header("User-Agent", $agent); | ||||
742 | } | ||||
743 | return $self->default_header("User-Agent"); | ||||
744 | } | ||||
745 | |||||
746 | sub from { # legacy | ||||
747 | my $self = shift; | ||||
748 | return $self->default_header("From", @_); | ||||
749 | } | ||||
750 | |||||
751 | |||||
752 | sub conn_cache { | ||||
753 | my $self = shift; | ||||
754 | my $old = $self->{conn_cache}; | ||||
755 | if (@_) { | ||||
756 | my $cache = shift; | ||||
757 | if (ref($cache) eq "HASH") { | ||||
758 | require LWP::ConnCache; | ||||
759 | $cache = LWP::ConnCache->new(%$cache); | ||||
760 | } | ||||
761 | $self->{conn_cache} = $cache; | ||||
762 | } | ||||
763 | $old; | ||||
764 | } | ||||
765 | |||||
766 | |||||
767 | sub add_handler { | ||||
768 | my($self, $phase, $cb, %spec) = @_; | ||||
769 | $spec{line} ||= join(":", (caller)[1,2]); | ||||
770 | my $conf = $self->{handlers}{$phase} ||= do { | ||||
771 | require HTTP::Config; | ||||
772 | HTTP::Config->new; | ||||
773 | }; | ||||
774 | $conf->add(%spec, callback => $cb); | ||||
775 | } | ||||
776 | |||||
777 | sub set_my_handler { | ||||
778 | my($self, $phase, $cb, %spec) = @_; | ||||
779 | $spec{owner} = (caller(1))[3] unless exists $spec{owner}; | ||||
780 | $self->remove_handler($phase, %spec); | ||||
781 | $spec{line} ||= join(":", (caller)[1,2]); | ||||
782 | $self->add_handler($phase, $cb, %spec) if $cb; | ||||
783 | } | ||||
784 | |||||
785 | sub get_my_handler { | ||||
786 | my $self = shift; | ||||
787 | my $phase = shift; | ||||
788 | my $init = pop if @_ % 2; | ||||
789 | my %spec = @_; | ||||
790 | my $conf = $self->{handlers}{$phase}; | ||||
791 | unless ($conf) { | ||||
792 | return unless $init; | ||||
793 | require HTTP::Config; | ||||
794 | $conf = $self->{handlers}{$phase} = HTTP::Config->new; | ||||
795 | } | ||||
796 | $spec{owner} = (caller(1))[3] unless exists $spec{owner}; | ||||
797 | my @h = $conf->find(%spec); | ||||
798 | if (!@h && $init) { | ||||
799 | if (ref($init) eq "CODE") { | ||||
800 | $init->(\%spec); | ||||
801 | } | ||||
802 | elsif (ref($init) eq "HASH") { | ||||
803 | while (my($k, $v) = each %$init) { | ||||
804 | $spec{$k} = $v; | ||||
805 | } | ||||
806 | } | ||||
807 | $spec{callback} ||= sub {}; | ||||
808 | $spec{line} ||= join(":", (caller)[1,2]); | ||||
809 | $conf->add(\%spec); | ||||
810 | return \%spec; | ||||
811 | } | ||||
812 | return wantarray ? @h : $h[0]; | ||||
813 | } | ||||
814 | |||||
815 | sub remove_handler { | ||||
816 | my($self, $phase, %spec) = @_; | ||||
817 | if ($phase) { | ||||
818 | my $conf = $self->{handlers}{$phase} || return; | ||||
819 | my @h = $conf->remove(%spec); | ||||
820 | delete $self->{handlers}{$phase} if $conf->empty; | ||||
821 | return @h; | ||||
822 | } | ||||
823 | |||||
824 | return unless $self->{handlers}; | ||||
825 | return map $self->remove_handler($_), sort keys %{$self->{handlers}}; | ||||
826 | } | ||||
827 | |||||
828 | sub handlers { | ||||
829 | my($self, $phase, $o) = @_; | ||||
830 | my @h; | ||||
831 | if ($o->{handlers} && $o->{handlers}{$phase}) { | ||||
832 | push(@h, @{$o->{handlers}{$phase}}); | ||||
833 | } | ||||
834 | if (my $conf = $self->{handlers}{$phase}) { | ||||
835 | push(@h, $conf->matching($o)); | ||||
836 | } | ||||
837 | return @h; | ||||
838 | } | ||||
839 | |||||
840 | sub run_handlers { | ||||
841 | my($self, $phase, $o) = @_; | ||||
842 | if (defined(wantarray)) { | ||||
843 | for my $h ($self->handlers($phase, $o)) { | ||||
844 | my $ret = $h->{callback}->($o, $self, $h); | ||||
845 | return $ret if $ret; | ||||
846 | } | ||||
847 | return undef; | ||||
848 | } | ||||
849 | |||||
850 | for my $h ($self->handlers($phase, $o)) { | ||||
851 | $h->{callback}->($o, $self, $h); | ||||
852 | } | ||||
853 | } | ||||
854 | |||||
855 | |||||
856 | # deprecated | ||||
857 | sub use_eval { shift->_elem('use_eval', @_); } | ||||
858 | sub use_alarm | ||||
859 | { | ||||
860 | Carp::carp("LWP::UserAgent->use_alarm(BOOL) is a no-op") | ||||
861 | if @_ > 1 && $^W; | ||||
862 | ""; | ||||
863 | } | ||||
864 | |||||
865 | |||||
866 | sub clone | ||||
867 | { | ||||
868 | my $self = shift; | ||||
869 | my $copy = bless { %$self }, ref $self; # copy most fields | ||||
870 | |||||
871 | delete $copy->{handlers}; | ||||
872 | delete $copy->{conn_cache}; | ||||
873 | |||||
874 | # copy any plain arrays and hashes; known not to need recursive copy | ||||
875 | for my $k (qw(proxy no_proxy requests_redirectable ssl_opts)) { | ||||
876 | next unless $copy->{$k}; | ||||
877 | if (ref($copy->{$k}) eq "ARRAY") { | ||||
878 | $copy->{$k} = [ @{$copy->{$k}} ]; | ||||
879 | } | ||||
880 | elsif (ref($copy->{$k}) eq "HASH") { | ||||
881 | $copy->{$k} = { %{$copy->{$k}} }; | ||||
882 | } | ||||
883 | } | ||||
884 | |||||
885 | if ($self->{def_headers}) { | ||||
886 | $copy->{def_headers} = $self->{def_headers}->clone; | ||||
887 | } | ||||
888 | |||||
889 | # re-enable standard handlers | ||||
890 | $copy->parse_head($self->parse_head); | ||||
891 | |||||
892 | # no easy way to clone the cookie jar; so let's just remove it for now | ||||
893 | $copy->cookie_jar(undef); | ||||
894 | |||||
895 | $copy; | ||||
896 | } | ||||
897 | |||||
898 | |||||
899 | sub mirror | ||||
900 | { | ||||
901 | my($self, $url, $file) = @_; | ||||
902 | |||||
903 | my $request = HTTP::Request->new('GET', $url); | ||||
904 | |||||
905 | # If the file exists, add a cache-related header | ||||
906 | if ( -e $file ) { | ||||
907 | my ($mtime) = ( stat($file) )[9]; | ||||
908 | if ($mtime) { | ||||
909 | $request->header( 'If-Modified-Since' => HTTP::Date::time2str($mtime) ); | ||||
910 | } | ||||
911 | } | ||||
912 | my $tmpfile = "$file-$$"; | ||||
913 | |||||
914 | my $response = $self->request($request, $tmpfile); | ||||
915 | if ( $response->header('X-Died') ) { | ||||
916 | die $response->header('X-Died'); | ||||
917 | } | ||||
918 | |||||
919 | # Only fetching a fresh copy of the would be considered success. | ||||
920 | # If the file was not modified, "304" would returned, which | ||||
921 | # is considered by HTTP::Status to be a "redirect", /not/ "success" | ||||
922 | if ( $response->is_success ) { | ||||
923 | my @stat = stat($tmpfile) or die "Could not stat tmpfile '$tmpfile': $!"; | ||||
924 | my $file_length = $stat[7]; | ||||
925 | my ($content_length) = $response->header('Content-length'); | ||||
926 | |||||
927 | if ( defined $content_length and $file_length < $content_length ) { | ||||
928 | unlink($tmpfile); | ||||
929 | die "Transfer truncated: " . "only $file_length out of $content_length bytes received\n"; | ||||
930 | } | ||||
931 | elsif ( defined $content_length and $file_length > $content_length ) { | ||||
932 | unlink($tmpfile); | ||||
933 | die "Content-length mismatch: " . "expected $content_length bytes, got $file_length\n"; | ||||
934 | } | ||||
935 | # The file was the expected length. | ||||
936 | else { | ||||
937 | # Replace the stale file with a fresh copy | ||||
938 | if ( -e $file ) { | ||||
939 | # Some DOSish systems fail to rename if the target exists | ||||
940 | chmod 0777, $file; | ||||
941 | unlink $file; | ||||
942 | } | ||||
943 | rename( $tmpfile, $file ) | ||||
944 | or die "Cannot rename '$tmpfile' to '$file': $!\n"; | ||||
945 | |||||
946 | # make sure the file has the same last modification time | ||||
947 | if ( my $lm = $response->last_modified ) { | ||||
948 | utime $lm, $lm, $file; | ||||
949 | } | ||||
950 | } | ||||
951 | } | ||||
952 | # The local copy is fresh enough, so just delete the temp file | ||||
953 | else { | ||||
954 | unlink($tmpfile); | ||||
955 | } | ||||
956 | return $response; | ||||
957 | } | ||||
958 | |||||
959 | |||||
960 | sub _need_proxy { | ||||
961 | my($req, $ua) = @_; | ||||
962 | return if exists $req->{proxy}; | ||||
963 | my $proxy = $ua->{proxy}{$req->uri->scheme} || return; | ||||
964 | if ($ua->{no_proxy}) { | ||||
965 | if (my $host = eval { $req->uri->host }) { | ||||
966 | for my $domain (@{$ua->{no_proxy}}) { | ||||
967 | if ($host =~ /\Q$domain\E$/) { | ||||
968 | return; | ||||
969 | } | ||||
970 | } | ||||
971 | } | ||||
972 | } | ||||
973 | $req->{proxy} = $HTTP::URI_CLASS->new($proxy); | ||||
974 | } | ||||
975 | |||||
976 | |||||
977 | sub proxy | ||||
978 | { | ||||
979 | my $self = shift; | ||||
980 | my $key = shift; | ||||
981 | return map $self->proxy($_, @_), @$key if ref $key; | ||||
982 | |||||
983 | Carp::croak("'$key' is not a valid URI scheme") unless $key =~ /^$URI::scheme_re\z/; | ||||
984 | my $old = $self->{'proxy'}{$key}; | ||||
985 | if (@_) { | ||||
986 | my $url = shift; | ||||
987 | if (defined($url) && length($url)) { | ||||
988 | Carp::croak("Proxy must be specified as absolute URI; '$url' is not") unless $url =~ /^$URI::scheme_re:/; | ||||
989 | Carp::croak("Bad http proxy specification '$url'") | ||||
990 | if $url =~ /^https?:/ && $url !~ m,^https?://(\w|\[),; | ||||
991 | } | ||||
992 | $self->{proxy}{$key} = $url; | ||||
993 | $self->set_my_handler("request_preprepare", \&_need_proxy) | ||||
994 | } | ||||
995 | return $old; | ||||
996 | } | ||||
997 | |||||
998 | |||||
999 | sub env_proxy { | ||||
1000 | my ($self) = @_; | ||||
1001 | require Encode; | ||||
1002 | require Encode::Locale; | ||||
1003 | my($k,$v); | ||||
1004 | while(($k, $v) = each %ENV) { | ||||
1005 | if ($ENV{REQUEST_METHOD}) { | ||||
1006 | # Need to be careful when called in the CGI environment, as | ||||
1007 | # the HTTP_PROXY variable is under control of that other guy. | ||||
1008 | next if $k =~ /^HTTP_/; | ||||
1009 | $k = "HTTP_PROXY" if $k eq "CGI_HTTP_PROXY"; | ||||
1010 | } | ||||
1011 | $k = lc($k); | ||||
1012 | next unless $k =~ /^(.*)_proxy$/; | ||||
1013 | $k = $1; | ||||
1014 | if ($k eq 'no') { | ||||
1015 | $self->no_proxy(split(/\s*,\s*/, $v)); | ||||
1016 | } | ||||
1017 | else { | ||||
1018 | # Ignore random _proxy variables, allow only valid schemes | ||||
1019 | next unless $k =~ /^$URI::scheme_re\z/; | ||||
1020 | # Ignore xxx_proxy variables if xxx isn't a supported protocol | ||||
1021 | next unless LWP::Protocol::implementor($k); | ||||
1022 | $self->proxy($k, Encode::decode(locale => $v)); | ||||
1023 | } | ||||
1024 | } | ||||
1025 | } | ||||
1026 | |||||
1027 | |||||
1028 | sub no_proxy { | ||||
1029 | my($self, @no) = @_; | ||||
1030 | if (@no) { | ||||
1031 | push(@{ $self->{'no_proxy'} }, @no); | ||||
1032 | } | ||||
1033 | else { | ||||
1034 | $self->{'no_proxy'} = []; | ||||
1035 | } | ||||
1036 | } | ||||
1037 | |||||
1038 | |||||
1039 | sub _new_response { | ||||
1040 | my($request, $code, $message, $content) = @_; | ||||
1041 | $message ||= HTTP::Status::status_message($code); | ||||
1042 | my $response = HTTP::Response->new($code, $message); | ||||
1043 | $response->request($request); | ||||
1044 | $response->header("Client-Date" => HTTP::Date::time2str(time)); | ||||
1045 | $response->header("Client-Warning" => "Internal response"); | ||||
1046 | $response->header("Content-Type" => "text/plain"); | ||||
1047 | $response->content($content || "$code $message\n"); | ||||
1048 | return $response; | ||||
1049 | } | ||||
1050 | |||||
1051 | |||||
1052 | 1; | ||||
1053 | |||||
1054 | __END__ |