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48 | use AnyEvent::Socket (); |
48 | use AnyEvent::Socket (); |
49 | use AnyEvent::Handle (); |
49 | use AnyEvent::Handle (); |
50 | |
50 | |
51 | use base Exporter::; |
51 | use base Exporter::; |
52 | |
52 | |
53 | our $VERSION = '1.03'; |
53 | our $VERSION = '1.05'; |
54 | |
54 | |
55 | our @EXPORT = qw(http_get http_post http_head http_request); |
55 | our @EXPORT = qw(http_get http_post http_head http_request); |
56 | |
56 | |
57 | our $USERAGENT = "Mozilla/5.0 (compatible; AnyEvent::HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)"; |
57 | our $USERAGENT = "Mozilla/5.0 (compatible; AnyEvent::HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)"; |
58 | our $MAX_RECURSE = 10; |
58 | our $MAX_RECURSE = 10; |
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71 | my %CO_SLOT; # number of open connections, and wait queue, per host |
71 | my %CO_SLOT; # number of open connections, and wait queue, per host |
72 | |
72 | |
73 | =item http_get $url, key => value..., $cb->($data, $headers) |
73 | =item http_get $url, key => value..., $cb->($data, $headers) |
74 | |
74 | |
75 | Executes an HTTP-GET request. See the http_request function for details on |
75 | Executes an HTTP-GET request. See the http_request function for details on |
76 | additional parameters. |
76 | additional parameters and the return value. |
77 | |
77 | |
78 | =item http_head $url, key => value..., $cb->($data, $headers) |
78 | =item http_head $url, key => value..., $cb->($data, $headers) |
79 | |
79 | |
80 | Executes an HTTP-HEAD request. See the http_request function for details on |
80 | Executes an HTTP-HEAD request. See the http_request function for details |
81 | additional parameters. |
81 | on additional parameters and the return value. |
82 | |
82 | |
83 | =item http_post $url, $body, key => value..., $cb->($data, $headers) |
83 | =item http_post $url, $body, key => value..., $cb->($data, $headers) |
84 | |
84 | |
85 | Executes an HTTP-POST request with a request body of C<$bod>. See the |
85 | Executes an HTTP-POST request with a request body of C<$body>. See the |
86 | http_request function for details on additional parameters. |
86 | http_request function for details on additional parameters and the return |
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87 | value. |
87 | |
88 | |
88 | =item http_request $method => $url, key => value..., $cb->($data, $headers) |
89 | =item http_request $method => $url, key => value..., $cb->($data, $headers) |
89 | |
90 | |
90 | Executes a HTTP request of type C<$method> (e.g. C<GET>, C<POST>). The URL |
91 | Executes a HTTP request of type C<$method> (e.g. C<GET>, C<POST>). The URL |
91 | must be an absolute http or https URL. |
92 | must be an absolute http or https URL. |
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93 | |
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94 | When called in void context, nothing is returned. In other contexts, |
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95 | C<http_request> returns a "cancellation guard" - you have to keep the |
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96 | object at least alive until the callback get called. If the object gets |
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97 | destroyed before the callbakc is called, the request will be cancelled. |
92 | |
98 | |
93 | The callback will be called with the response data as first argument |
99 | The callback will be called with the response data as first argument |
94 | (or C<undef> if it wasn't available due to errors), and a hash-ref with |
100 | (or C<undef> if it wasn't available due to errors), and a hash-ref with |
95 | response headers as second argument. |
101 | response headers as second argument. |
96 | |
102 | |
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188 | my ($body, $hdr) = @_; |
194 | my ($body, $hdr) = @_; |
189 | use Data::Dumper; |
195 | use Data::Dumper; |
190 | print Dumper $hdr; |
196 | print Dumper $hdr; |
191 | } |
197 | } |
192 | ; |
198 | ; |
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199 | |
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200 | Example: make another simple HTTP GET request, but immediately try to |
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201 | cancel it. |
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202 | |
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203 | my $request = http_request GET => "http://www.nethype.de/", sub { |
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204 | my ($body, $hdr) = @_; |
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205 | print "$body\n"; |
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206 | }; |
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207 | |
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208 | undef $request; |
193 | |
209 | |
194 | =cut |
210 | =cut |
195 | |
211 | |
196 | sub _slot_schedule; |
212 | sub _slot_schedule; |
197 | sub _slot_schedule($) { |
213 | sub _slot_schedule($) { |
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235 | while (my ($k, $v) = each %$hdr) { |
251 | while (my ($k, $v) = each %$hdr) { |
236 | $hdr{lc $k} = $v; |
252 | $hdr{lc $k} = $v; |
237 | } |
253 | } |
238 | } |
254 | } |
239 | |
255 | |
240 | my $recurse = exists $arg{recurse} ? $arg{recurse} : $MAX_RECURSE; |
256 | my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE; |
241 | |
257 | |
242 | return $cb->(undef, { Status => 599, Reason => "recursion limit reached", URL => $url }) |
258 | return $cb->(undef, { Status => 599, Reason => "recursion limit reached", URL => $url }) |
243 | if $recurse < 0; |
259 | if $recurse < 0; |
244 | |
260 | |
245 | my $proxy = $arg{proxy} || $PROXY; |
261 | my $proxy = $arg{proxy} || $PROXY; |
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274 | %$jar = () if $jar->{version} < 1; |
290 | %$jar = () if $jar->{version} < 1; |
275 | |
291 | |
276 | my @cookie; |
292 | my @cookie; |
277 | |
293 | |
278 | while (my ($chost, $v) = each %$jar) { |
294 | while (my ($chost, $v) = each %$jar) { |
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295 | if ($chost =~ /^\./) { |
279 | next unless $chost eq substr $uhost, -length $chost; |
296 | next unless $chost eq substr $uhost, -length $chost; |
280 | next unless $chost =~ /^\./; |
297 | } elsif ($chost =~ /\./) { |
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298 | next unless $chost eq $uhost; |
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299 | } else { |
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300 | next; |
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301 | } |
281 | |
302 | |
282 | while (my ($cpath, $v) = each %$v) { |
303 | while (my ($cpath, $v) = each %$v) { |
283 | next unless $cpath eq substr $upath, 0, length $cpath; |
304 | next unless $cpath eq substr $upath, 0, length $cpath; |
284 | |
305 | |
285 | while (my ($k, $v) = each %$v) { |
306 | while (my ($k, $v) = each %$v) { |
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355 | |
376 | |
356 | %hdr = (); # reduce memory usage, save a kitten |
377 | %hdr = (); # reduce memory usage, save a kitten |
357 | |
378 | |
358 | # status line |
379 | # status line |
359 | $state{handle}->push_read (line => qr/\015?\012/, sub { |
380 | $state{handle}->push_read (line => qr/\015?\012/, sub { |
360 | $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) \s+ ([^\015\012]+)/ix |
381 | $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix |
361 | or return (%state = (), $cb->(undef, { Status => 599, Reason => "invalid server response ($_[1])", URL => $url })); |
382 | or return (%state = (), $cb->(undef, { Status => 599, Reason => "invalid server response ($_[1])", URL => $url })); |
362 | |
383 | |
363 | my %hdr = ( # response headers |
384 | my %hdr = ( # response headers |
364 | HTTPVersion => "\x00$1", |
385 | HTTPVersion => "\x00$1", |
365 | Status => "\x00$2", |
386 | Status => "\x00$2", |
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369 | |
390 | |
370 | # headers, could be optimized a bit |
391 | # headers, could be optimized a bit |
371 | $state{handle}->unshift_read (line => qr/\015?\012\015?\012/, sub { |
392 | $state{handle}->unshift_read (line => qr/\015?\012\015?\012/, sub { |
372 | for ("$_[1]\012") { |
393 | for ("$_[1]\012") { |
373 | # we support spaces in field names, as lotus domino |
394 | # we support spaces in field names, as lotus domino |
374 | # creates them. |
395 | # creates them (actually spaces around seperators |
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396 | # are strictly allowed in http, they are a security issue). |
375 | $hdr{lc $1} .= "\x00$2" |
397 | $hdr{lc $1} .= "\x00$2" |
376 | while /\G |
398 | while /\G |
377 | ([^:\000-\037]+): |
399 | ([^:\000-\037]+): |
378 | [\011\040]* |
400 | [\011\040]* |
379 | ((?: [^\015\012]+ | \015?\012[\011\040] )*) |
401 | ((?: [^\015\012]+ | \015?\012[\011\040] )*) |
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386 | |
408 | |
387 | substr $_, 0, 1, "" |
409 | substr $_, 0, 1, "" |
388 | for values %hdr; |
410 | for values %hdr; |
389 | |
411 | |
390 | my $finish = sub { |
412 | my $finish = sub { |
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413 | # TODO: use destroy method, when/if available |
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414 | #$state{handle}->destroy; |
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415 | $state{handle}->on_eof (undef); |
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416 | $state{handle}->on_error (undef); |
391 | %state = (); |
417 | %state = (); |
392 | |
418 | |
393 | # set-cookie processing |
419 | # set-cookie processing |
394 | if ($arg{cookie_jar} && exists $hdr{"set-cookie"}) { |
420 | if ($arg{cookie_jar} && exists $hdr{"set-cookie"}) { |
395 | for (split /\x00/, $hdr{"set-cookie"}) { |
421 | for (split /\x00/, $hdr{"set-cookie"}) { |
396 | my ($cookie, @arg) = split /;\s*/; |
422 | my ($cookie, @arg) = split /;\s*/; |
397 | my ($name, $value) = split /=/, $cookie, 2; |
423 | my ($name, $value) = split /=/, $cookie, 2; |
398 | my %kv = (value => $value, map { split /=/, $_, 2 } @arg); |
424 | my %kv = (value => $value, map { split /=/, $_, 2 } @arg); |
399 | |
425 | |
400 | my $cdom = (delete $kv{domain}) || $uhost; |
426 | my $cdom; |
401 | my $cpath = (delete $kv{path}) || "/"; |
427 | my $cpath = (delete $kv{path}) || "/"; |
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428 | |
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429 | if (exists $kv{domain}) { |
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430 | $cdom = delete $kv{domain}; |
402 | |
431 | |
403 | $cdom =~ s/^.?/./; # make sure it starts with a "." |
432 | $cdom =~ s/^\.?/./; # make sure it starts with a "." |
404 | |
433 | |
405 | next if $cdom =~ /\.$/; |
434 | next if $cdom =~ /\.$/; |
406 | |
435 | |
407 | # this is not rfc-like and not netscape-like. go figure. |
436 | # this is not rfc-like and not netscape-like. go figure. |
408 | my $ndots = $cdom =~ y/.//; |
437 | my $ndots = $cdom =~ y/.//; |
409 | next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2); |
438 | next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2); |
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439 | } else { |
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440 | $cdom = $uhost; |
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441 | } |
410 | |
442 | |
411 | # store it |
443 | # store it |
412 | $arg{cookie_jar}{version} = 1; |
444 | $arg{cookie_jar}{version} = 1; |
413 | $arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv; |
445 | $arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv; |
414 | } |
446 | } |
415 | } |
447 | } |
416 | |
448 | |
417 | if ($_[1]{Status} =~ /^30[12]$/ && $recurse) { |
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418 | # microsoft and other assholes don't give a shit for following standards, |
449 | # microsoft and other shitheads don't give a shit for following standards, |
419 | # try to support a common form of broken Location header. |
450 | # try to support some common forms of broken Location headers. |
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451 | if ($_[1]{location} !~ /^(?: $ | [^:\/?\#]+ : )/x) { |
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452 | $_[1]{location} =~ s/^\.\/+//; |
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453 | |
420 | $_[1]{location} =~ s%^/%$scheme://$uhost:$uport/%; |
454 | my $url = "$scheme://$uhost:$uport"; |
421 | |
455 | |
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456 | unless ($_[1]{location} =~ s/^\///) { |
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457 | $url .= $upath; |
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458 | $url =~ s/\/[^\/]*$//; |
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459 | } |
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460 | |
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461 | $_[1]{location} = "$url/$_[1]{location}"; |
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462 | } |
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463 | |
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464 | if ($_[1]{Status} =~ /^30[12]$/ && $recurse && $method ne "POST") { |
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465 | # apparently, mozilla et al. just change POST to GET here |
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466 | # more research is needed before we do the same |
422 | http_request ($method, $_[1]{location}, %arg, recurse => $recurse - 1, $cb); |
467 | http_request ($method, $_[1]{location}, %arg, recurse => $recurse - 1, $cb); |
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468 | } elsif ($_[1]{Status} == 303 && $recurse) { |
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469 | # even http/1.1 is unclear on how to mutate the method |
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470 | $method = "GET" unless $method eq "HEAD"; |
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471 | http_request ($method => $_[1]{location}, %arg, recurse => $recurse - 1, $cb); |
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472 | } elsif ($_[1]{Status} == 307 && $recurse && $method =~ /^(?:GET|HEAD)$/) { |
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473 | http_request ($method => $_[1]{location}, %arg, recurse => $recurse - 1, $cb); |
423 | } else { |
474 | } else { |
424 | $cb->($_[0], $_[1]); |
475 | $cb->($_[0], $_[1]); |
425 | } |
476 | } |
426 | }; |
477 | }; |
427 | |
478 | |