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Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.14 by root, Thu Jun 5 17:29:01 2008 UTC vs.
Revision 1.40 by root, Sun Jul 5 01:45:01 2009 UTC

… …
3AnyEvent::HTTP - simple but non-blocking HTTP/HTTPS client 3AnyEvent::HTTP - simple but non-blocking HTTP/HTTPS client
4 4
5=head1 SYNOPSIS 5=head1 SYNOPSIS
6 6
7 use AnyEvent::HTTP; 7 use AnyEvent::HTTP;
8
9 http_get "http://www.nethype.de/", sub { print $_[1] };
10
11 # ... do something else here
8 12
9=head1 DESCRIPTION 13=head1 DESCRIPTION
10 14
11This module is an L<AnyEvent> user, you need to make sure that you use and 15This module is an L<AnyEvent> user, you need to make sure that you use and
12run a supported event loop. 16run a supported event loop.
… …
37use strict; 41use strict;
38no warnings; 42no warnings;
39 43
40use Carp; 44use Carp;
41 45
42use AnyEvent (); 46use AnyEvent 4.452 ();
43use AnyEvent::Util (); 47use AnyEvent::Util ();
44use AnyEvent::Socket (); 48use AnyEvent::Socket ();
45use AnyEvent::Handle (); 49use AnyEvent::Handle ();
46 50
47use base Exporter::; 51use base Exporter::;
48 52
49our $VERSION = '1.0'; 53our $VERSION = '1.12';
50 54
51our @EXPORT = qw(http_get http_request); 55our @EXPORT = qw(http_get http_post http_head http_request);
52 56
53our $USERAGENT = "Mozilla/5.0 (compatible; AnyEvent::HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)"; 57our $USERAGENT = "Mozilla/5.0 (compatible; U; AnyEvent-HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)";
54our $MAX_RECURSE = 10; 58our $MAX_RECURSE = 10;
55our $MAX_PERSISTENT = 8; 59our $MAX_PERSISTENT = 8;
56our $PERSISTENT_TIMEOUT = 2; 60our $PERSISTENT_TIMEOUT = 2;
57our $TIMEOUT = 300; 61our $TIMEOUT = 300;
58 62
… …
67my %CO_SLOT; # number of open connections, and wait queue, per host 71my %CO_SLOT; # number of open connections, and wait queue, per host
68 72
69=item http_get $url, key => value..., $cb->($data, $headers) 73=item http_get $url, key => value..., $cb->($data, $headers)
70 74
71Executes an HTTP-GET request. See the http_request function for details on 75Executes an HTTP-GET request. See the http_request function for details on
72additional parameters. 76additional parameters and the return value.
73 77
74=item http_head $url, key => value..., $cb->($data, $headers) 78=item http_head $url, key => value..., $cb->($data, $headers)
75 79
76Executes an HTTP-HEAD request. See the http_request function for details on 80Executes an HTTP-HEAD request. See the http_request function for details
77additional parameters. 81on additional parameters and the return value.
78 82
79=item http_post $url, $body, key => value..., $cb->($data, $headers) 83=item http_post $url, $body, key => value..., $cb->($data, $headers)
80 84
81Executes an HTTP-POST request with a request body of C<$bod>. See the 85Executes an HTTP-POST request with a request body of C<$body>. See the
82http_request function for details on additional parameters. 86http_request function for details on additional parameters and the return
87value.
83 88
84=item http_request $method => $url, key => value..., $cb->($data, $headers) 89=item http_request $method => $url, key => value..., $cb->($data, $headers)
85 90
86Executes a HTTP request of type C<$method> (e.g. C<GET>, C<POST>). The URL 91Executes a HTTP request of type C<$method> (e.g. C<GET>, C<POST>). The URL
87must be an absolute http or https URL. 92must be an absolute http or https URL.
93
94When called in void context, nothing is returned. In other contexts,
95C<http_request> returns a "cancellation guard" - you have to keep the
96object at least alive until the callback get called. If the object gets
97destroyed before the callbakc is called, the request will be cancelled.
88 98
89The callback will be called with the response data as first argument 99The callback will be called with the response data as first argument
90(or C<undef> if it wasn't available due to errors), and a hash-ref with 100(or C<undef> if it wasn't available due to errors), and a hash-ref with
91response headers as second argument. 101response headers as second argument.
92 102
93All the headers in that hash are lowercased. In addition to the response 103All the headers in that hash are lowercased. In addition to the response
94headers, the three "pseudo-headers" C<HTTPVersion>, C<Status> and 104headers, the "pseudo-headers" C<HTTPVersion>, C<Status> and C<Reason>
95C<Reason> contain the three parts of the HTTP Status-Line of the same 105contain the three parts of the HTTP Status-Line of the same name. The
106pseudo-header C<URL> contains the original URL (which can differ from the
107requested URL when following redirects).
108
96name. If the server sends a header multiple lines, then their contents 109If the server sends a header multiple times, then their contents will be
97will be joined together with C<\x00>. 110joined together with a comma (C<,>), as per the HTTP spec.
98 111
99If an internal error occurs, such as not being able to resolve a hostname, 112If an internal error occurs, such as not being able to resolve a hostname,
100then C<$data> will be C<undef>, C<< $headers->{Status} >> will be C<599> 113then C<$data> will be C<undef>, C<< $headers->{Status} >> will be C<599>
101and the C<Reason> pseudo-header will contain an error message. 114and the C<Reason> pseudo-header will contain an error message.
102 115
… …
152based on the original netscape specification. 165based on the original netscape specification.
153 166
154The C<$hash_ref> must be an (initially empty) hash reference which will 167The C<$hash_ref> must be an (initially empty) hash reference which will
155get updated automatically. It is possible to save the cookie_jar to 168get updated automatically. It is possible to save the cookie_jar to
156persistent storage with something like JSON or Storable, but this is not 169persistent storage with something like JSON or Storable, but this is not
157recommended, as expire times are currently being ignored. 170recommended, as expiry times are currently being ignored.
158 171
159Note that this cookie implementation is not of very high quality, nor 172Note that this cookie implementation is not of very high quality, nor
160meant to be complete. If you want complete cookie management you have to 173meant to be complete. If you want complete cookie management you have to
161do that on your own. C<cookie_jar> is meant as a quick fix to get some 174do that on your own. C<cookie_jar> is meant as a quick fix to get some
162cookie-using sites working. Cookies are a privacy disaster, do not use 175cookie-using sites working. Cookies are a privacy disaster, do not use
163them unless required to. 176them unless required to.
177
178=item tls_ctx => $scheme | $tls_ctx
179
180Specifies the AnyEvent::TLS context to be used for https connections. This
181parameter follows the same rules as the C<tls_ctx> parameter to
182L<AnyEvent::Handle>, but additionally, the two strings C<low> or
183C<high> can be specified, which give you a predefined low-security (no
184verification, highest compatibility) and high-security (CA and common-name
185verification) TLS context.
186
187The default for this option is C<low>, which could be interpreted as "give
188me the page, no matter what".
164 189
165=back 190=back
166 191
167Example: make a simple HTTP GET request for http://www.nethype.de/ 192Example: make a simple HTTP GET request for http://www.nethype.de/
168 193
… …
181 my ($body, $hdr) = @_; 206 my ($body, $hdr) = @_;
182 use Data::Dumper; 207 use Data::Dumper;
183 print Dumper $hdr; 208 print Dumper $hdr;
184 } 209 }
185 ; 210 ;
211
212Example: make another simple HTTP GET request, but immediately try to
213cancel it.
214
215 my $request = http_request GET => "http://www.nethype.de/", sub {
216 my ($body, $hdr) = @_;
217 print "$body\n";
218 };
219
220 undef $request;
186 221
187=cut 222=cut
188 223
189sub _slot_schedule; 224sub _slot_schedule;
190sub _slot_schedule($) { 225sub _slot_schedule($) {
… …
214 push @{ $CO_SLOT{$_[0]}[1] }, $_[1]; 249 push @{ $CO_SLOT{$_[0]}[1] }, $_[1];
215 250
216 _slot_schedule $_[0]; 251 _slot_schedule $_[0];
217} 252}
218 253
254our $qr_nl = qr<\015?\012>;
255our $qr_nlnl = qr<\015?\012\015?\012>;
256
257our $TLS_CTX_LOW = { cache => 1, dh => undef, sslv2 => 1 };
258our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_cn => "https", dh => "skip4096" };
259
219sub http_request($$$;@) { 260sub http_request($$@) {
220 my $cb = pop; 261 my $cb = pop;
221 my ($method, $url, %arg) = @_; 262 my ($method, $url, %arg) = @_;
222 263
223 my %hdr; 264 my %hdr;
265
266 $arg{tls_ctx} = $TLS_CTX_LOW if $arg{tls_ctx} eq "low" || !exists $arg{tls_ctx};
267 $arg{tls_ctx} = $TLS_CTX_HIGH if $arg{tls_ctx} eq "high";
224 268
225 $method = uc $method; 269 $method = uc $method;
226 270
227 if (my $hdr = $arg{headers}) { 271 if (my $hdr = $arg{headers}) {
228 while (my ($k, $v) = each %$hdr) { 272 while (my ($k, $v) = each %$hdr) {
229 $hdr{lc $k} = $v; 273 $hdr{lc $k} = $v;
230 } 274 }
231 } 275 }
232 276
233 my $recurse = exists $arg{recurse} ? $arg{recurse} : $MAX_RECURSE; 277 my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;
234 278
235 return $cb->(undef, { Status => 599, Reason => "recursion limit reached" }) 279 return $cb->(undef, { Status => 599, Reason => "Too many redirections", URL => $url })
236 if $recurse < 0; 280 if $recurse < 0;
237 281
238 my $proxy = $arg{proxy} || $PROXY; 282 my $proxy = $arg{proxy} || $PROXY;
239 my $timeout = $arg{timeout} || $TIMEOUT; 283 my $timeout = $arg{timeout} || $TIMEOUT;
240 284
241 $hdr{"user-agent"} ||= $USERAGENT; 285 $hdr{"user-agent"} ||= $USERAGENT;
242 286
243 my ($scheme, $authority, $upath, $query, $fragment) = 287 my ($uscheme, $uauthority, $upath, $query, $fragment) =
244 $url =~ m|(?:([^:/?#]+):)?(?://([^/?#]*))?([^?#]*)(?:\?([^#]*))?(?:#(.*))?|; 288 $url =~ m|(?:([^:/?#]+):)?(?://([^/?#]*))?([^?#]*)(?:\?([^#]*))?(?:#(.*))?|;
245 289
246 $scheme = lc $scheme; 290 $uscheme = lc $uscheme;
247 291
248 my $uport = $scheme eq "http" ? 80 292 my $uport = $uscheme eq "http" ? 80
249 : $scheme eq "https" ? 443 293 : $uscheme eq "https" ? 443
250 : return $cb->(undef, { Status => 599, Reason => "only http and https URL schemes supported" }); 294 : return $cb->(undef, { Status => 599, Reason => "Only http and https URL schemes supported (not '$uscheme')", URL => $url });
251 295
252 $hdr{referer} ||= "$scheme://$authority$upath"; # leave out fragment and query string, just a heuristic 296 $hdr{referer} ||= "$uscheme://$uauthority$upath"; # leave out fragment and query string, just a heuristic
253 297
254 $authority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x 298 $uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x
255 or return $cb->(undef, { Status => 599, Reason => "unparsable URL" }); 299 or return $cb->(undef, { Status => 599, Reason => "Unparsable URL", URL => $url });
256 300
257 my $uhost = $1; 301 my $uhost = $1;
258 $uport = $2 if defined $2; 302 $uport = $2 if defined $2;
259 303
260 $uhost =~ s/^\[(.*)\]$/$1/; 304 $uhost =~ s/^\[(.*)\]$/$1/;
… …
262 306
263 $upath =~ s%^/?%/%; 307 $upath =~ s%^/?%/%;
264 308
265 # cookie processing 309 # cookie processing
266 if (my $jar = $arg{cookie_jar}) { 310 if (my $jar = $arg{cookie_jar}) {
267 %$jar = () if $jar->{version} < 1; 311 %$jar = () if $jar->{version} != 1;
268 312
269 my @cookie; 313 my @cookie;
270 314
271 while (my ($chost, $v) = each %$jar) { 315 while (my ($chost, $v) = each %$jar) {
316 if ($chost =~ /^\./) {
272 next unless $chost eq substr $uhost, -length $chost; 317 next unless $chost eq substr $uhost, -length $chost;
273 next unless $chost =~ /^\./; 318 } elsif ($chost =~ /\./) {
319 next unless $chost eq $uhost;
320 } else {
321 next;
322 }
274 323
275 while (my ($cpath, $v) = each %$v) { 324 while (my ($cpath, $v) = each %$v) {
276 next unless $cpath eq substr $upath, 0, length $cpath; 325 next unless $cpath eq substr $upath, 0, length $cpath;
277 326
278 while (my ($k, $v) = each %$v) { 327 while (my ($k, $v) = each %$v) {
279 next if $scheme ne "https" && exists $v->{secure}; 328 next if $uscheme ne "https" && exists $v->{secure};
329 my $value = $v->{value};
330 $value =~ s/([\\"])/\\$1/g;
280 push @cookie, "$k=$v->{value}"; 331 push @cookie, "$k=\"$value\"";
281 } 332 }
282 } 333 }
283 } 334 }
284 335
285 $hdr{cookie} = join "; ", @cookie 336 $hdr{cookie} = join "; ", @cookie
286 if @cookie; 337 if @cookie;
287 } 338 }
288 339
289 my ($rhost, $rport, $rpath); # request host, port, path 340 my ($rhost, $rport, $rscheme, $rpath); # request host, port, path
290 341
291 if ($proxy) { 342 if ($proxy) {
292 ($rhost, $rport, $scheme) = @$proxy; 343 ($rpath, $rhost, $rport, $rscheme) = ($url, @$proxy);
293 $rpath = $url; 344
345 # don't support https requests over https-proxy transport,
346 # can't be done with tls as spec'ed, unless you double-encrypt.
347 $rscheme = "http" if $uscheme eq "https" && $rscheme eq "https";
294 } else { 348 } else {
295 ($rhost, $rport, $rpath) = ($uhost, $uport, $upath); 349 ($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);
296 $hdr{host} = $uhost;
297 } 350 }
298 351
352 $hdr{host} = $uhost;
299 $hdr{"content-length"} = length $arg{body}; 353 $hdr{"content-length"} = length $arg{body};
300 354
301 my %state = (connect_guard => 1); 355 my %state = (connect_guard => 1);
302 356
303 _get_slot $uhost, sub { 357 _get_slot $uhost, sub {
… …
305 359
306 return unless $state{connect_guard}; 360 return unless $state{connect_guard};
307 361
308 $state{connect_guard} = AnyEvent::Socket::tcp_connect $rhost, $rport, sub { 362 $state{connect_guard} = AnyEvent::Socket::tcp_connect $rhost, $rport, sub {
309 $state{fh} = shift 363 $state{fh} = shift
310 or return $cb->(undef, { Status => 599, Reason => "$!" }); 364 or return (%state = (), $cb->(undef, { Status => 599, Reason => "$!", URL => $url }));
365 pop; # free memory, save a tree
311 366
312 delete $state{connect_guard}; # reduce memory usage, save a tree 367 return unless delete $state{connect_guard};
313 368
314 # get handle 369 # get handle
315 $state{handle} = new AnyEvent::Handle 370 $state{handle} = new AnyEvent::Handle
316 fh => $state{fh}, 371 fh => $state{fh},
317 ($scheme eq "https" ? (tls => "connect") : ()); 372 timeout => $timeout,
373 peername => $rhost,
374 tls_ctx => $arg{tls_ctx};
318 375
319 # limit the number of persistent connections 376 # limit the number of persistent connections
377 # keepalive not yet supported
320 if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) { 378 if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {
321 ++$KA_COUNT{$_[1]}; 379 ++$KA_COUNT{$_[1]};
322 $state{handle}{ka_count_guard} = AnyEvent::Util::guard { --$KA_COUNT{$_[1]} }; 380 $state{handle}{ka_count_guard} = AnyEvent::Util::guard {
381 --$KA_COUNT{$_[1]}
382 };
323 $hdr{connection} = "keep-alive"; 383 $hdr{connection} = "keep-alive";
324 delete $hdr{connection}; # keep-alive not yet supported
325 } else { 384 } else {
326 delete $hdr{connection}; 385 delete $hdr{connection};
327 } 386 }
328 387
329 # (re-)configure handle 388 # (re-)configure handle
330 $state{handle}->timeout ($timeout);
331 $state{handle}->on_error (sub { 389 $state{handle}->on_error (sub {
332 my $errno = "$!";
333 %state = (); 390 %state = ();
334 $cb->(undef, { Status => 599, Reason => $errno }); 391 $cb->(undef, { Status => 599, Reason => $_[2], URL => $url });
335 }); 392 });
336 $state{handle}->on_eof (sub { 393 $state{handle}->on_eof (sub {
337 %state = (); 394 %state = ();
338 $cb->(undef, { Status => 599, Reason => "unexpected end-of-file" }); 395 $cb->(undef, { Status => 599, Reason => "Unexpected end-of-file", URL => $url });
339 }); 396 });
340 397
398 $state{handle}->starttls ("connect") if $rscheme eq "https";
399
400 # handle actual, non-tunneled, request
401 my $handle_actual_request = sub {
402 $state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};
403
341 # send request 404 # send request
342 $state{handle}->push_write ( 405 $state{handle}->push_write (
343 "$method $rpath HTTP/1.0\015\012" 406 "$method $rpath HTTP/1.0\015\012"
344 . (join "", map "$_: $hdr{$_}\015\012", keys %hdr) 407 . (join "", map "\u$_: $hdr{$_}\015\012", keys %hdr)
345 . "\015\012" 408 . "\015\012"
346 . (delete $arg{body}) 409 . (delete $arg{body})
347 );
348
349 %hdr = (); # reduce memory usage, save a kitten
350
351 # status line
352 $state{handle}->push_read (line => qr/\015?\012/, sub {
353 $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) \s+ ([^\015\012]+)/ix
354 or return (%state = (), $cb->(undef, { Status => 599, Reason => "invalid server response ($_[1])" }));
355
356 my %hdr = ( # response headers
357 HTTPVersion => "\x00$1",
358 Status => "\x00$2",
359 Reason => "\x00$3",
360 ); 410 );
361 411
412 %hdr = (); # reduce memory usage, save a kitten
413
414 # status line
415 $state{handle}->push_read (line => $qr_nl, sub {
416 $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
417 or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid server response ($_[1])", URL => $url }));
418
419 my %hdr = ( # response headers
420 HTTPVersion => ",$1",
421 Status => ",$2",
422 Reason => ",$3",
423 URL => ",$url"
424 );
425
362 # headers, could be optimized a bit 426 # headers, could be optimized a bit
363 $state{handle}->unshift_read (line => qr/\015?\012\015?\012/, sub { 427 $state{handle}->unshift_read (line => $qr_nlnl, sub {
364 for ("$_[1]\012") { 428 for ("$_[1]\012") {
365 # we support spaces in field names, as lotus domino 429 y/\015//d; # weed out any \015, as they show up in the weirdest of places.
366 # creates them. 430
431 # things seen, not parsed:
432 # p3pP="NON CUR OTPi OUR NOR UNI"
433
367 $hdr{lc $1} .= "\x00$2" 434 $hdr{lc $1} .= ",$2"
368 while /\G 435 while /\G
369 ([^:\000-\037]+): 436 ([^:\000-\037]+):
370 [\011\040]* 437 [\011\040]*
371 ((?: [^\015\012]+ | \015?\012[\011\040] )*) 438 ((?: [^\012]+ | \012[\011\040] )*)
372 \015?\012 439 \012
373 /gxc; 440 /gxc;
374 441
375 /\G$/ 442 /\G$/
376 or return (%state = (), $cb->(undef, { Status => 599, Reason => "garbled response headers" })); 443 or return (%state = (), $cb->(undef, { Status => 599, Reason => "Garbled response headers", URL => $url }));
377 } 444 }
378 445
379 substr $_, 0, 1, "" 446 substr $_, 0, 1, ""
380 for values %hdr; 447 for values %hdr;
381 448
382 my $finish = sub { 449 my $finish = sub {
450 $state{handle}->destroy;
383 %state = (); 451 %state = ();
384 452
385 # set-cookie processing 453 # set-cookie processing
386 if ($arg{cookie_jar} && exists $hdr{"set-cookie"}) { 454 if ($arg{cookie_jar}) {
387 for (split /\x00/, $hdr{"set-cookie"}) { 455 for ($hdr{"set-cookie"}) {
388 my ($cookie, @arg) = split /;\s*/; 456 # parse NAME=VALUE
389 my ($name, $value) = split /=/, $cookie, 2; 457 my @kv;
390 my %kv = (value => $value, map { split /=/, $_, 2 } @arg); 458
391 459 while (/\G\s* ([^=;,[:space:]]+) \s*=\s* (?: "((?:[^\\"]+|\\.)*)" | ([^=;,[:space:]]*) )/gcxs) {
392 my $cdom = (delete $kv{domain}) || $uhost; 460 my $name = $1;
461 my $value = $3;
462
463 unless ($value) {
464 $value = $2;
465 $value =~ s/\\(.)/$1/gs;
466 }
467
468 push @kv, $name => $value;
469
470 last unless /\G\s*;/gc;
471 }
472
473 last unless @kv;
474
475 my $name = shift @kv;
476 my %kv = (value => shift @kv, @kv);
477
478 my $cdom;
393 my $cpath = (delete $kv{path}) || "/"; 479 my $cpath = (delete $kv{path}) || "/";
394 480
481 if (exists $kv{domain}) {
482 $cdom = delete $kv{domain};
483
395 $cdom =~ s/^.?/./; # make sure it starts with a "." 484 $cdom =~ s/^\.?/./; # make sure it starts with a "."
396 485
397 next if $cdom =~ /\.$/; 486 next if $cdom =~ /\.$/;
398 487
399 # this is not rfc-like and not netscape-like. go figure. 488 # this is not rfc-like and not netscape-like. go figure.
400 my $ndots = $cdom =~ y/.//; 489 my $ndots = $cdom =~ y/.//;
401 next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2); 490 next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
402 491 } else {
492 $cdom = $uhost;
493 }
494
403 # store it 495 # store it
404 $arg{cookie_jar}{version} = 1; 496 $arg{cookie_jar}{version} = 1;
405 $arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv; 497 $arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv;
498
499 redo if /\G\s*,/gc;
500 }
501 }
502
503 # microsoft and other shitheads don't give a shit for following standards,
504 # try to support some common forms of broken Location headers.
505 if ($_[1]{location} !~ /^(?: $ | [^:\/?\#]+ : )/x) {
506 $_[1]{location} =~ s/^\.\/+//;
507
508 my $url = "$rscheme://$uhost:$uport";
509
510 unless ($_[1]{location} =~ s/^\///) {
511 $url .= $upath;
512 $url =~ s/\/[^\/]*$//;
513 }
514
515 $_[1]{location} = "$url/$_[1]{location}";
516 }
517
518 if ($_[1]{Status} =~ /^30[12]$/ && $recurse && $method ne "POST") {
519 # apparently, mozilla et al. just change POST to GET here
520 # more research is needed before we do the same
521 http_request ($method => $_[1]{location}, %arg, recurse => $recurse - 1, $cb);
522 } elsif ($_[1]{Status} == 303 && $recurse) {
523 # even http/1.1 is unclear on how to mutate the method
524 $method = "GET" unless $method eq "HEAD";
525 http_request ($method => $_[1]{location}, %arg, recurse => $recurse - 1, $cb);
526 } elsif ($_[1]{Status} == 307 && $recurse && $method =~ /^(?:GET|HEAD)$/) {
527 http_request ($method => $_[1]{location}, %arg, recurse => $recurse - 1, $cb);
528 } else {
529 $cb->($_[0], $_[1]);
530 }
531 };
532
533 if ($hdr{Status} =~ /^(?:1..|204|304)$/ or $method eq "HEAD") {
534 $finish->(undef, \%hdr);
535 } else {
536 if (exists $hdr{"content-length"}) {
537 $_[0]->unshift_read (chunk => $hdr{"content-length"}, sub {
538 # could cache persistent connection now
539 if ($hdr{connection} =~ /\bkeep-alive\b/i) {
540 # but we don't, due to misdesigns, this is annoyingly complex
541 };
542
543 $finish->($_[1], \%hdr);
544 });
545 } else {
546 # too bad, need to read until we get an error or EOF,
547 # no way to detect winged data.
548 $_[0]->on_error (sub {
549 # delete ought to be more efficient, as we would have to make
550 # a copy otherwise as $_[0] gets destroyed.
551 $finish->(delete $_[0]{rbuf}, \%hdr);
552 });
553 $_[0]->on_eof (undef);
554 $_[0]->on_read (sub { });
406 } 555 }
407 } 556 }
408
409 if ($_[1]{Status} =~ /^30[12]$/ && $recurse) {
410 # microsoft and other assholes don't give a shit for following standards,
411 # try to support a common form of broken Location header.
412 $_[1]{location} =~ s%^/%$scheme://$uhost:$uport/%;
413
414 http_request ($method, $_[1]{location}, %arg, recurse => $recurse - 1, $cb);
415 } else {
416 $cb->($_[0], $_[1]);
417 }
418 }; 557 });
558 });
559 };
419 560
420 if ($hdr{Status} =~ /^(?:1..|204|304)$/ or $method eq "HEAD") { 561 # now handle proxy-CONNECT method
421 $finish->(undef, \%hdr); 562 if ($proxy && $uscheme eq "https") {
563 # oh dear, we have to wrap it into a connect request
564
565 # maybe re-use $uauthority with patched port?
566 $state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012");
567 $state{handle}->push_read (line => $qr_nlnl, sub {
568 $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
569 or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid proxy connect response ($_[1])", URL => $url }));
570
571 if ($2 == 200) {
572 $rpath = $upath;
573 &$handle_actual_request;
422 } else { 574 } else {
423 if (exists $hdr{"content-length"}) { 575 %state = ();
424 $_[0]->unshift_read (chunk => $hdr{"content-length"}, sub { 576 $cb->(undef, { Status => $2, Reason => $3, URL => $url });
425 # could cache persistent connection now
426 if ($hdr{connection} =~ /\bkeep-alive\b/i) {
427 # but we don't, due to misdesigns, this is annoyingly complex
428 };
429
430 $finish->($_[1], \%hdr);
431 });
432 } else {
433 # too bad, need to read until we get an error or EOF,
434 # no way to detect winged data.
435 $_[0]->on_error (sub {
436 $finish->($_[0]{rbuf}, \%hdr);
437 });
438 $_[0]->on_eof (undef);
439 $_[0]->on_read (sub { });
440 }
441 } 577 }
442 }); 578 });
579 } else {
580 &$handle_actual_request;
443 }); 581 }
582
444 }, sub { 583 }, sub {
445 $timeout 584 $timeout
446 }; 585 };
447 }; 586 };
448 587
449 defined wantarray && AnyEvent::Util::guard { %state = () } 588 defined wantarray && AnyEvent::Util::guard { %state = () }
450} 589}
451 590
452sub http_get($$;@) { 591sub http_get($@) {
453 unshift @_, "GET"; 592 unshift @_, "GET";
454 &http_request 593 &http_request
455} 594}
456 595
457sub http_head($$;@) { 596sub http_head($@) {
458 unshift @_, "HEAD"; 597 unshift @_, "HEAD";
459 &http_request 598 &http_request
460} 599}
461 600
462sub http_post($$$;@) { 601sub http_post($$@) {
602 my $url = shift;
463 unshift @_, "POST", "body"; 603 unshift @_, "POST", $url, "body";
464 &http_request 604 &http_request
465} 605}
466 606
467=back 607=back
468 608
… …
480The default value for the C<recurse> request parameter (default: C<10>). 620The default value for the C<recurse> request parameter (default: C<10>).
481 621
482=item $AnyEvent::HTTP::USERAGENT 622=item $AnyEvent::HTTP::USERAGENT
483 623
484The default value for the C<User-Agent> header (the default is 624The default value for the C<User-Agent> header (the default is
485C<Mozilla/5.0 (compatible; AnyEvent::HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)>). 625C<Mozilla/5.0 (compatible; U; AnyEvent-HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)>).
486 626
487=item $AnyEvent::HTTP::MAX_PERSISTENT 627=item $AnyEvent::HTTP::MAX_PERSISTENT
488 628
489The maximum number of persistent connections to keep open (default: 8). 629The maximum number of persistent connections to keep open (default: 8).
490 630
… …
517 657
518L<AnyEvent>. 658L<AnyEvent>.
519 659
520=head1 AUTHOR 660=head1 AUTHOR
521 661
522 Marc Lehmann <schmorp@schmorp.de> 662 Marc Lehmann <schmorp@schmorp.de>
523 http://home.schmorp.de/ 663 http://home.schmorp.de/
664
665With many thanks to Дмитрий Шалашов, who provided countless
666testcases and bugreports.
524 667
525=cut 668=cut
526 669
5271 6701
528 671

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