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Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.11 by root, Thu Jun 5 15:34:00 2008 UTC vs.
Revision 1.31 by root, Fri Oct 24 01:25:54 2008 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.
… …
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 = '1.05';
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 $USERAGENT = "Mozilla/5.0 (compatible; AnyEvent::HTTP/$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;
… …
59# changing these is evil 63# changing these is evil
60our $MAX_PERSISTENT_PER_HOST = 2; 64our $MAX_PERSISTENT_PER_HOST = 2;
61our $MAX_PER_HOST = 4; 65our $MAX_PER_HOST = 4;
62 66
63our $PROXY; 67our $PROXY;
68our $ACTIVE = 0;
64 69
65my %KA_COUNT; # number of open keep-alive connections per host 70my %KA_COUNT; # number of open keep-alive connections per host
66my %CO_SLOT; # number of open connections, and wait queue, per host 71my %CO_SLOT; # number of open connections, and wait queue, per host
67 72
68=item http_get $url, key => value..., $cb->($data, $headers) 73=item http_get $url, key => value..., $cb->($data, $headers)
69 74
70Executes 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
71additional parameters. 76additional parameters and the return value.
72 77
73=item http_head $url, key => value..., $cb->($data, $headers) 78=item http_head $url, key => value..., $cb->($data, $headers)
74 79
75Executes an HTTP-HEAD request. See the http_request function for details on 80Executes an HTTP-HEAD request. See the http_request function for details
76additional parameters. 81on additional parameters and the return value.
77 82
78=item http_post $url, $body, key => value..., $cb->($data, $headers) 83=item http_post $url, $body, key => value..., $cb->($data, $headers)
79 84
80Executes an HTTP-POST request with a request body of C<$bod>. See the 85Executes an HTTP-POST request with a request body of C<$body>. See the
81http_request function for details on additional parameters. 86http_request function for details on additional parameters and the return
87value.
82 88
83=item http_request $method => $url, key => value..., $cb->($data, $headers) 89=item http_request $method => $url, key => value..., $cb->($data, $headers)
84 90
85Executes a HTTP request of type C<$method> (e.g. C<GET>, C<POST>). The URL 91Executes a HTTP request of type C<$method> (e.g. C<GET>, C<POST>). The URL
86must be an absolute http or https URL. 92must be an absolute http or https URL.
93
94When called in void context, nothing is returned. In other contexts,
95C<http_request> returns a "cancellation guard" - you have to keep the
96object at least alive until the callback get called. If the object gets
97destroyed before the callbakc is called, the request will be cancelled.
87 98
88The callback will be called with the response data as first argument 99The callback will be called with the response data as first argument
89(or C<undef> if it wasn't available due to errors), and a hash-ref with 100(or C<undef> if it wasn't available due to errors), and a hash-ref with
90response headers as second argument. 101response headers as second argument.
91 102
92All the headers in that hash are lowercased. In addition to the response 103All the headers in that hash are lowercased. In addition to the response
93headers, the three "pseudo-headers" C<HTTPVersion>, C<Status> and 104headers, the "pseudo-headers" C<HTTPVersion>, C<Status> and C<Reason>
94C<Reason> contain the three parts of the HTTP Status-Line of the same 105contain the three parts of the HTTP Status-Line of the same name. The
106pseudo-header C<URL> contains the original URL (which can differ from the
107requested URL when following redirects).
108
95name. If the server sends a header multiple lines, then their contents 109If the server sends a header multiple lines, then their contents will be
96will be joined together with C<\x00>. 110joined together with a command (C<,>).
97 111
98If an internal error occurs, such as not being able to resolve a hostname, 112If an internal error occurs, such as not being able to resolve a hostname,
99then C<$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>
100and the C<Reason> pseudo-header will contain an error message. 114and the C<Reason> pseudo-header will contain an error message.
101 115
… …
121Whether to recurse requests or not, e.g. on redirects, authentication 135Whether to recurse requests or not, e.g. on redirects, authentication
122retries and so on, and how often to do so. 136retries and so on, and how often to do so.
123 137
124=item headers => hashref 138=item headers => hashref
125 139
126The request headers to use. 140The request headers to use. Currently, C<http_request> may provide its
141own C<Host:>, C<Content-Length:>, C<Connection:> and C<Cookie:> headers
142and will provide defaults for C<User-Agent:> and C<Referer:>.
127 143
128=item timeout => $seconds 144=item timeout => $seconds
129 145
130The time-out to use for various stages - each connect attempt will reset 146The time-out to use for various stages - each connect attempt will reset
131the timeout, as will read or write activity. Default timeout is 5 minutes. 147the timeout, as will read or write activity. Default timeout is 5 minutes.
… …
179 use Data::Dumper; 195 use Data::Dumper;
180 print Dumper $hdr; 196 print Dumper $hdr;
181 } 197 }
182 ; 198 ;
183 199
200Example: make another simple HTTP GET request, but immediately try to
201cancel it.
202
203 my $request = http_request GET => "http://www.nethype.de/", sub {
204 my ($body, $hdr) = @_;
205 print "$body\n";
206 };
207
208 undef $request;
209
184=cut 210=cut
185 211
212sub _slot_schedule;
186sub _slot_schedule($) { 213sub _slot_schedule($) {
187 my $host = shift; 214 my $host = shift;
188 215
189 while ($CO_SLOT{$host}[0] < $MAX_PER_HOST) { 216 while ($CO_SLOT{$host}[0] < $MAX_PER_HOST) {
190 if (my $cb = shift @{ $CO_SLOT{$host}[1] }) { 217 if (my $cb = shift @{ $CO_SLOT{$host}[1] }) {
191 # somebody wnats that slot 218 # somebody wants that slot
192 ++$CO_SLOT{$host}[0]; 219 ++$CO_SLOT{$host}[0];
220 ++$ACTIVE;
193 221
194 $cb->(AnyEvent::Util::guard { 222 $cb->(AnyEvent::Util::guard {
223 --$ACTIVE;
195 --$CO_SLOT{$host}[0]; 224 --$CO_SLOT{$host}[0];
196 _slot_schedule $host; 225 _slot_schedule $host;
197 }); 226 });
198 } else { 227 } else {
199 # nobody wants the slot, maybe we can forget about it 228 # nobody wants the slot, maybe we can forget about it
200 delete $CO_SLOT{$host} unless $CO_SLOT{$host}[0]; 229 delete $CO_SLOT{$host} unless $CO_SLOT{$host}[0];
201 warn "$host deleted" unless $CO_SLOT{$host}[0];#d#
202 last; 230 last;
203 } 231 }
204 } 232 }
205} 233}
206 234
… …
209 push @{ $CO_SLOT{$_[0]}[1] }, $_[1]; 237 push @{ $CO_SLOT{$_[0]}[1] }, $_[1];
210 238
211 _slot_schedule $_[0]; 239 _slot_schedule $_[0];
212} 240}
213 241
214sub http_request($$$;@) { 242sub http_request($$@) {
215 my $cb = pop; 243 my $cb = pop;
216 my ($method, $url, %arg) = @_; 244 my ($method, $url, %arg) = @_;
217 245
218 my %hdr; 246 my %hdr;
219 247
… …
223 while (my ($k, $v) = each %$hdr) { 251 while (my ($k, $v) = each %$hdr) {
224 $hdr{lc $k} = $v; 252 $hdr{lc $k} = $v;
225 } 253 }
226 } 254 }
227 255
228 my $recurse = exists $arg{recurse} ? $arg{recurse} : $MAX_RECURSE; 256 my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;
229 257
230 return $cb->(undef, { Status => 599, Reason => "recursion limit reached" }) 258 return $cb->(undef, { Status => 599, Reason => "recursion limit reached", URL => $url })
231 if $recurse < 0; 259 if $recurse < 0;
232 260
233 my $proxy = $arg{proxy} || $PROXY; 261 my $proxy = $arg{proxy} || $PROXY;
234 my $timeout = $arg{timeout} || $TIMEOUT; 262 my $timeout = $arg{timeout} || $TIMEOUT;
235 263
236 $hdr{"user-agent"} ||= $USERAGENT; 264 $hdr{"user-agent"} ||= $USERAGENT;
237 265
238 my ($scheme, $authority, $upath, $query, $fragment) = 266 my ($uscheme, $uauthority, $upath, $query, $fragment) =
239 $url =~ m|(?:([^:/?#]+):)?(?://([^/?#]*))?([^?#]*)(?:\?([^#]*))?(?:#(.*))?|; 267 $url =~ m|(?:([^:/?#]+):)?(?://([^/?#]*))?([^?#]*)(?:\?([^#]*))?(?:#(.*))?|;
240 268
241 $scheme = lc $scheme; 269 $uscheme = lc $uscheme;
242 270
243 my $uport = $scheme eq "http" ? 80 271 my $uport = $uscheme eq "http" ? 80
244 : $scheme eq "https" ? 443 272 : $uscheme eq "https" ? 443
245 : return $cb->(undef, { Status => 599, Reason => "only http and https URL schemes supported" }); 273 : return $cb->(undef, { Status => 599, Reason => "only http and https URL schemes supported", URL => $url });
246 274
275 $hdr{referer} ||= "$uscheme://$uauthority$upath"; # leave out fragment and query string, just a heuristic
276
247 $authority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x 277 $uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x
248 or return $cb->(undef, { Status => 599, Reason => "unparsable URL" }); 278 or return $cb->(undef, { Status => 599, Reason => "unparsable URL", URL => $url });
249 279
250 my $uhost = $1; 280 my $uhost = $1;
251 $uport = $2 if defined $2; 281 $uport = $2 if defined $2;
252 282
253 $uhost =~ s/^\[(.*)\]$/$1/; 283 $uhost =~ s/^\[(.*)\]$/$1/;
… …
255 285
256 $upath =~ s%^/?%/%; 286 $upath =~ s%^/?%/%;
257 287
258 # cookie processing 288 # cookie processing
259 if (my $jar = $arg{cookie_jar}) { 289 if (my $jar = $arg{cookie_jar}) {
260 %$jar = () if $jar->{version} < 1; 290 %$jar = () if $jar->{version} != 1;
261 291
262 my @cookie; 292 my @cookie;
263 293
264 while (my ($chost, $v) = each %$jar) { 294 while (my ($chost, $v) = each %$jar) {
295 if ($chost =~ /^\./) {
265 next unless $chost eq substr $uhost, -length $chost; 296 next unless $chost eq substr $uhost, -length $chost;
266 next unless $chost =~ /^\./; 297 } elsif ($chost =~ /\./) {
298 next unless $chost eq $uhost;
299 } else {
300 next;
301 }
267 302
268 while (my ($cpath, $v) = each %$v) { 303 while (my ($cpath, $v) = each %$v) {
269 next unless $cpath eq substr $upath, 0, length $cpath; 304 next unless $cpath eq substr $upath, 0, length $cpath;
270 305
271 while (my ($k, $v) = each %$v) { 306 while (my ($k, $v) = each %$v) {
272 next if $scheme ne "https" && exists $v->{secure}; 307 next if $uscheme ne "https" && exists $v->{secure};
308 my $value = $v->{value};
309 $value =~ s/([\\"])/\\$1/g;
273 push @cookie, "$k=$v->{value}"; 310 push @cookie, "$k=\"$value\"";
274 } 311 }
275 } 312 }
276 } 313 }
277 314
278 $hdr{cookie} = join "; ", @cookie 315 $hdr{cookie} = join "; ", @cookie
279 if @cookie; 316 if @cookie;
280 } 317 }
281 318
282 my ($rhost, $rport, $rpath); # request host, port, path 319 my ($rhost, $rport, $rscheme, $rpath); # request host, port, path
283 320
284 if ($proxy) { 321 if ($proxy) {
285 ($rhost, $rport, $scheme) = @$proxy; 322 ($rhost, $rport, $rscheme, $rpath) = (@$proxy, $url);
286 $rpath = $url; 323
324 # don't support https requests over https-proxy transport,
325 # can't be done with tls as spec'ed.
326 $rscheme = "http" if $uscheme eq "https" && $rscheme eq "https";
287 } else { 327 } else {
288 ($rhost, $rport, $rpath) = ($uhost, $uport, $upath); 328 ($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);
289 $hdr{host} = $uhost;
290 } 329 }
291 330
331 $hdr{host} = $uhost;
292 $hdr{"content-length"} = length $arg{body}; 332 $hdr{"content-length"} = length $arg{body};
293 333
294 my %state = (connect_guard => 1); 334 my %state = (connect_guard => 1);
295 335
296 _get_slot $uhost, sub { 336 _get_slot $uhost, sub {
… …
298 338
299 return unless $state{connect_guard}; 339 return unless $state{connect_guard};
300 340
301 $state{connect_guard} = AnyEvent::Socket::tcp_connect $rhost, $rport, sub { 341 $state{connect_guard} = AnyEvent::Socket::tcp_connect $rhost, $rport, sub {
302 $state{fh} = shift 342 $state{fh} = shift
303 or return $cb->(undef, { Status => 599, Reason => "$!" }); 343 or return $cb->(undef, { Status => 599, Reason => "$!", URL => $url });
304 344
305 delete $state{connect_guard}; # reduce memory usage, save a tree 345 delete $state{connect_guard}; # reduce memory usage, save a tree
306 346
307 # get handle 347 # get handle
308 $state{handle} = new AnyEvent::Handle 348 $state{handle} = new AnyEvent::Handle
309 fh => $state{fh}, 349 fh => $state{fh};
310 ($scheme eq "https" ? (tls => "connect") : ());
311 350
312 # limit the number of persistent connections 351 # limit the number of persistent connections
313 if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) { 352 if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {
314 ++$KA_COUNT{$_[1]}; 353 ++$KA_COUNT{$_[1]};
315 $state{handle}{ka_count_guard} = AnyEvent::Util::guard { --$KA_COUNT{$_[1]} }; 354 $state{handle}{ka_count_guard} = AnyEvent::Util::guard { --$KA_COUNT{$_[1]} };
… …
320 } 359 }
321 360
322 # (re-)configure handle 361 # (re-)configure handle
323 $state{handle}->timeout ($timeout); 362 $state{handle}->timeout ($timeout);
324 $state{handle}->on_error (sub { 363 $state{handle}->on_error (sub {
364 my $errno = "$!";
325 %state = (); 365 %state = ();
326 $cb->(undef, { Status => 599, Reason => "$!" }); 366 $cb->(undef, { Status => 599, Reason => $errno, URL => $url });
327 }); 367 });
328 $state{handle}->on_eof (sub { 368 $state{handle}->on_eof (sub {
329 %state = (); 369 %state = ();
330 $cb->(undef, { Status => 599, Reason => "unexpected end-of-file" }); 370 $cb->(undef, { Status => 599, Reason => "unexpected end-of-file", URL => $url });
331 }); 371 });
332 372
373 $state{handle}->starttls ("connect") if $rscheme eq "https";
374
375 # handle actual, non-tunneled, request
376 my $handle_actual_request = sub {
377# $state{handle}->starttls ("connect") if $uscheme eq "https";
378
333 # send request 379 # send request
334 $state{handle}->push_write ( 380 $state{handle}->push_write (
335 "$method $rpath HTTP/1.0\015\012" 381 "$method $rpath HTTP/1.0\015\012"
336 . (join "", map "$_: $hdr{$_}\015\012", keys %hdr) 382 . (join "", map "\u$_: $hdr{$_}\015\012", keys %hdr)
337 . "\015\012" 383 . "\015\012"
338 . (delete $arg{body}) 384 . (delete $arg{body})
339 );
340
341 %hdr = (); # reduce memory usage, save a kitten
342
343 # status line
344 $state{handle}->push_read (line => qr/\015?\012/, sub {
345 $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) \s+ ([^\015\012]+)/ix
346 or return (%state = (), $cb->(undef, { Status => 599, Reason => "invalid server response ($_[1])" }));
347
348 my %hdr = ( # response headers
349 HTTPVersion => "\x00$1",
350 Status => "\x00$2",
351 Reason => "\x00$3",
352 ); 385 );
353 386
387 %hdr = (); # reduce memory usage, save a kitten
388
389 # status line
390 $state{handle}->push_read (line => qr/\015?\012/, sub {
391 $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
392 or return (%state = (), $cb->(undef, { Status => 599, Reason => "invalid server response ($_[1])", URL => $url }));
393
394 my %hdr = ( # response headers
395 HTTPVersion => ",$1",
396 Status => ",$2",
397 Reason => ",$3",
398 URL => ",$url"
399 );
400
354 # headers, could be optimized a bit 401 # headers, could be optimized a bit
355 $state{handle}->unshift_read (line => qr/\015?\012\015?\012/, sub { 402 $state{handle}->unshift_read (line => qr/\015?\012\015?\012/, sub {
356 for ("$_[1]\012") { 403 for ("$_[1]\012") {
404 y/\015//d; # weed out any \015, as they show up in the weirdest of places.
405
357 # we support spaces in field names, as lotus domino 406 # we support spaces in field names, as lotus domino
358 # creates them. 407 # creates them (actually spaces around seperators
408 # are strictly allowed in http, they are a security issue).
359 $hdr{lc $1} .= "\x00$2" 409 $hdr{lc $1} .= ",$2"
360 while /\G 410 while /\G
361 ([^:\000-\037]+): 411 ([^:\000-\037]+):
362 [\011\040]* 412 [\011\040]*
363 ((?: [^\015\012]+ | \015?\012[\011\040] )*) 413 ((?: [^\012]+ | \012[\011\040] )*)
364 \015?\012 414 \012
365 /gxc; 415 /gxc;
366 416
367 /\G$/ 417 /\G$/
368 or return (%state = (), $cb->(undef, { Status => 599, Reason => "garbled response headers" })); 418 or return (%state = (), $cb->(undef, { Status => 599, Reason => "garbled response headers", URL => $url }));
369 } 419 }
370 420
371 substr $_, 0, 1, "" 421 substr $_, 0, 1, ""
372 for values %hdr; 422 for values %hdr;
373 423
374 my $finish = sub { 424 my $finish = sub {
425 # TODO: use destroy method, when/if available
426 #$state{handle}->destroy;
427 $state{handle}->on_eof (undef);
428 $state{handle}->on_error (undef);
375 %state = (); 429 %state = ();
376 430
377 # set-cookie processing 431 # set-cookie processing
378 if ($arg{cookie_jar} && exists $hdr{"set-cookie"}) { 432 if ($arg{cookie_jar}) {
379 for (split /\x00/, $hdr{"set-cookie"}) { 433 for ($hdr{"set-cookie"}) {
380 my ($cookie, @arg) = split /;\s*/; 434 # parse NAME=VALUE
381 my ($name, $value) = split /=/, $cookie, 2; 435 my @kv;
382 my %kv = (value => $value, map { split /=/, $_, 2 } @arg); 436
383 437 while (/\G\s* ([^=;,[:space:]]+) \s*=\s* (?: "((?:[^\\"]+|\\.)*)" | ([^=;,[:space:]]*) )/gcxs) {
384 my $cdom = (delete $kv{domain}) || $uhost; 438 my $name = $1;
439 my $value = $3;
440
441 unless ($value) {
442 $value = $2;
443 $value =~ s/\\(.)/$1/gs;
444 }
445
446 push @kv, $name => $value;
447
448 last unless /\G\s*;/gc;
449 }
450
451 last unless @kv;
452
453 my $name = shift @kv;
454 my %kv = (value => shift @kv, @kv);
455
456 my $cdom;
385 my $cpath = (delete $kv{path}) || "/"; 457 my $cpath = (delete $kv{path}) || "/";
386 458
459 if (exists $kv{domain}) {
460 $cdom = delete $kv{domain};
461
387 $cdom =~ s/^.?/./; # make sure it starts with a "." 462 $cdom =~ s/^\.?/./; # make sure it starts with a "."
388 463
389 next if $cdom =~ /\.$/; 464 next if $cdom =~ /\.$/;
390 465
391 # this is not rfc-like and not netscape-like. go figure. 466 # this is not rfc-like and not netscape-like. go figure.
392 my $ndots = $cdom =~ y/.//; 467 my $ndots = $cdom =~ y/.//;
393 next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2); 468 next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
394 469 } else {
470 $cdom = $uhost;
471 }
472
395 # store it 473 # store it
396 $arg{cookie_jar}{version} = 1; 474 $arg{cookie_jar}{version} = 1;
397 $arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv; 475 $arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv;
476
477 redo if /\G\s*,/gc;
478 }
479 }
480
481 # microsoft and other shitheads don't give a shit for following standards,
482 # try to support some common forms of broken Location headers.
483 if ($_[1]{location} !~ /^(?: $ | [^:\/?\#]+ : )/x) {
484 $_[1]{location} =~ s/^\.\/+//;
485
486 my $url = "$rscheme://$uhost:$uport";
487
488 unless ($_[1]{location} =~ s/^\///) {
489 $url .= $upath;
490 $url =~ s/\/[^\/]*$//;
491 }
492
493 $_[1]{location} = "$url/$_[1]{location}";
494 }
495
496 if ($_[1]{Status} =~ /^30[12]$/ && $recurse && $method ne "POST") {
497 # apparently, mozilla et al. just change POST to GET here
498 # more research is needed before we do the same
499 http_request ($method, $_[1]{location}, %arg, recurse => $recurse - 1, $cb);
500 } elsif ($_[1]{Status} == 303 && $recurse) {
501 # even http/1.1 is unclear on how to mutate the method
502 $method = "GET" unless $method eq "HEAD";
503 http_request ($method => $_[1]{location}, %arg, recurse => $recurse - 1, $cb);
504 } elsif ($_[1]{Status} == 307 && $recurse && $method =~ /^(?:GET|HEAD)$/) {
505 http_request ($method => $_[1]{location}, %arg, recurse => $recurse - 1, $cb);
506 } else {
507 $cb->($_[0], $_[1]);
508 }
509 };
510
511 if ($hdr{Status} =~ /^(?:1..|204|304)$/ or $method eq "HEAD") {
512 $finish->(undef, \%hdr);
513 } else {
514 if (exists $hdr{"content-length"}) {
515 $_[0]->unshift_read (chunk => $hdr{"content-length"}, sub {
516 # could cache persistent connection now
517 if ($hdr{connection} =~ /\bkeep-alive\b/i) {
518 # but we don't, due to misdesigns, this is annoyingly complex
519 };
520
521 $finish->($_[1], \%hdr);
522 });
523 } else {
524 # too bad, need to read until we get an error or EOF,
525 # no way to detect winged data.
526 $_[0]->on_error (sub {
527 $finish->($_[0]{rbuf}, \%hdr);
528 });
529 $_[0]->on_eof (undef);
530 $_[0]->on_read (sub { });
398 } 531 }
399 } 532 }
400
401 if ($_[1]{Status} =~ /^x30[12]$/ && $recurse) {
402 # microsoft and other assholes don't give a shit for following standards,
403 # try to support a common form of broken Location header.
404 $_[1]{location} =~ s%^/%$scheme://$uhost:$uport/%;
405
406 http_request ($method, $_[1]{location}, %arg, recurse => $recurse - 1, $cb);
407 } else {
408 $cb->($_[0], $_[1]);
409 }
410 }; 533 });
534 });
535 };
411 536
412 if ($hdr{Status} =~ /^(?:1..|204|304)$/ or $method eq "HEAD") { 537 # now handle proxy-CONNECT method
413 $finish->(undef, \%hdr); 538 if ($proxy && $uscheme eq "https") {
539 # oh dear, we have to wrap it into a connect request
540
541 # maybe re-use $uauthority with patched port?
542 $state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012");
543 $state{handle}->push_read (line => qr/\015?\012\015?\012/, sub {
544 $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
545 or return (%state = (), $cb->(undef, { Status => 599, Reason => "invalid proxy connect response ($_[1])", URL => $url }));
546
547 if ($2 == 200) {
548 $rpath = $upath;
549 &$handle_actual_request;
414 } else { 550 } else {
415 if (exists $hdr{"content-length"}) { 551 %state = ();
416 $_[0]->unshift_read (chunk => $hdr{"content-length"}, sub { 552 $cb->(undef, { Status => $2, Reason => $3, URL => $url });
417 # could cache persistent connection now
418 if ($hdr{connection} =~ /\bkeep-alive\b/i) {
419 # but we don't, due to misdesigns, this is annoyingly complex
420 };
421
422 $finish->($_[1], \%hdr);
423 });
424 } else {
425 # too bad, need to read until we get an error or EOF,
426 # no way to detect winged data.
427 $_[0]->on_error (sub {
428 $finish->($_[0]{rbuf}, \%hdr);
429 });
430 $_[0]->on_eof (undef);
431 $_[0]->on_read (sub { });
432 }
433 } 553 }
434 }); 554 });
555 } else {
556 &$handle_actual_request;
435 }); 557 }
558
436 }, sub { 559 }, sub {
437 $timeout 560 $timeout
438 }; 561 };
439 }; 562 };
440 563
441 defined wantarray && AnyEvent::Util::guard { %state = () } 564 defined wantarray && AnyEvent::Util::guard { %state = () }
442} 565}
443 566
444sub http_get($$;@) { 567sub http_get($@) {
445 unshift @_, "GET"; 568 unshift @_, "GET";
446 &http_request 569 &http_request
447} 570}
448 571
449sub http_head($$;@) { 572sub http_head($@) {
450 unshift @_, "HEAD"; 573 unshift @_, "HEAD";
451 &http_request 574 &http_request
452} 575}
453 576
454sub http_post($$$;@) { 577sub http_post($$@) {
578 my $url = shift;
455 unshift @_, "POST", "body"; 579 unshift @_, "POST", $url, "body";
456 &http_request 580 &http_request
457} 581}
458 582
459=back 583=back
460 584
… …
485=item $AnyEvent::HTTP::PERSISTENT_TIMEOUT 609=item $AnyEvent::HTTP::PERSISTENT_TIMEOUT
486 610
487The maximum time to cache a persistent connection, in seconds (default: 2). 611The maximum time to cache a persistent connection, in seconds (default: 2).
488 612
489Not implemented currently. 613Not implemented currently.
614
615=item $AnyEvent::HTTP::ACTIVE
616
617The number of active connections. This is not the number of currently
618running requests, but the number of currently open and non-idle TCP
619connections. This number of can be useful for load-leveling.
490 620
491=back 621=back
492 622
493=cut 623=cut
494 624
… …
503 633
504L<AnyEvent>. 634L<AnyEvent>.
505 635
506=head1 AUTHOR 636=head1 AUTHOR
507 637
508 Marc Lehmann <schmorp@schmorp.de> 638 Marc Lehmann <schmorp@schmorp.de>
509 http://home.schmorp.de/ 639 http://home.schmorp.de/
510 640
511=cut 641=cut
512 642
5131 6431
514 644

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