ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/AnyEvent-HTTP/HTTP.pm
(Generate patch)

Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.9 by root, Wed Jun 4 13:51:53 2008 UTC vs.
Revision 1.29 by root, Wed Oct 22 23:28:11 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.
17
18This module implements a simple, stateless and non-blocking HTTP
19client. It supports GET, POST and other request methods, cookies and more,
20all on a very low level. It can follow redirects supports proxies and
21automatically limits the number of connections to the values specified in
22the RFC.
23
24It should generally be a "good client" that is enough for most HTTP
25tasks. Simple tasks should be simple, but complex tasks should still be
26possible as the user retains control over request and response headers.
27
28The caller is responsible for authentication management, cookies (if
29the simplistic implementation in this module doesn't suffice), referer
30and other high-level protocol details for which this module offers only
31limited support.
13 32
14=head2 METHODS 33=head2 METHODS
15 34
16=over 4 35=over 4
17 36
… …
29use AnyEvent::Socket (); 48use AnyEvent::Socket ();
30use AnyEvent::Handle (); 49use AnyEvent::Handle ();
31 50
32use base Exporter::; 51use base Exporter::;
33 52
34our $VERSION = '1.0'; 53our $VERSION = '1.05';
35 54
36our @EXPORT = qw(http_get http_request); 55our @EXPORT = qw(http_get http_post http_head http_request);
37 56
38our $USERAGENT = "Mozilla/5.0 (compatible; AnyEvent::HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)"; 57our $USERAGENT = "Mozilla/5.0 (compatible; AnyEvent::HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)";
39our $MAX_RECURSE = 10; 58our $MAX_RECURSE = 10;
40our $MAX_PERSISTENT = 8; 59our $MAX_PERSISTENT = 8;
41our $PERSISTENT_TIMEOUT = 2; 60our $PERSISTENT_TIMEOUT = 2;
42our $TIMEOUT = 300; 61our $TIMEOUT = 300;
43 62
44# changing these is evil 63# changing these is evil
45our $MAX_PERSISTENT_PER_HOST = 2; 64our $MAX_PERSISTENT_PER_HOST = 2;
46our $MAX_PER_HOST = 4; # not respected yet :( 65our $MAX_PER_HOST = 4;
47 66
48our $PROXY; 67our $PROXY;
68our $ACTIVE = 0;
49 69
50my %KA_COUNT; # number of open keep-alive connections per host 70my %KA_COUNT; # number of open keep-alive connections per host
71my %CO_SLOT; # number of open connections, and wait queue, per host
51 72
52=item http_get $url, key => value..., $cb->($data, $headers) 73=item http_get $url, key => value..., $cb->($data, $headers)
53 74
54Executes 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
55additional parameters. 76additional parameters and the return value.
56 77
57=item http_head $url, key => value..., $cb->($data, $headers) 78=item http_head $url, key => value..., $cb->($data, $headers)
58 79
59Executes an HTTP-HEAD request. See the http_request function for details on 80Executes an HTTP-HEAD request. See the http_request function for details
60additional parameters. 81on additional parameters and the return value.
61 82
62=item http_post $url, $body, key => value..., $cb->($data, $headers) 83=item http_post $url, $body, key => value..., $cb->($data, $headers)
63 84
64Executes an HTTP-POST request with a request body of C<$bod>. See the 85Executes an HTTP-POST request with a request body of C<$body>. See the
65http_request function for details on additional parameters. 86http_request function for details on additional parameters and the return
87value.
66 88
67=item http_request $method => $url, key => value..., $cb->($data, $headers) 89=item http_request $method => $url, key => value..., $cb->($data, $headers)
68 90
69Executes a HTTP request of type C<$method> (e.g. C<GET>, C<POST>). The URL 91Executes a HTTP request of type C<$method> (e.g. C<GET>, C<POST>). The URL
70must be an absolute http or https URL. 92must be an absolute http or https URL.
93
94When called in void context, nothing is returned. In other contexts,
95C<http_request> returns a "cancellation guard" - you have to keep the
96object at least alive until the callback get called. If the object gets
97destroyed before the callbakc is called, the request will be cancelled.
71 98
72The callback will be called with the response data as first argument 99The callback will be called with the response data as first argument
73(or C<undef> if it wasn't available due to errors), and a hash-ref with 100(or C<undef> if it wasn't available due to errors), and a hash-ref with
74response headers as second argument. 101response headers as second argument.
75 102
76All the headers in that hash are lowercased. In addition to the response 103All the headers in that hash are lowercased. In addition to the response
77headers, the three "pseudo-headers" C<HTTPVersion>, C<Status> and 104headers, the "pseudo-headers" C<HTTPVersion>, C<Status> and C<Reason>
78C<Reason> contain the three parts of the HTTP Status-Line of the same 105contain the three parts of the HTTP Status-Line of the same name. The
79name. 106pseudo-header C<URL> contains the original URL (which can differ from the
107requested URL when following redirects).
108
109If the server sends a header multiple lines, then their contents will be
110joined together with C<\x00>.
80 111
81If an internal error occurs, such as not being able to resolve a hostname, 112If an internal error occurs, such as not being able to resolve a hostname,
82then C<$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>
83and the C<Reason> pseudo-header will contain an error message. 114and the C<Reason> pseudo-header will contain an error message.
84 115
… …
104Whether to recurse requests or not, e.g. on redirects, authentication 135Whether to recurse requests or not, e.g. on redirects, authentication
105retries and so on, and how often to do so. 136retries and so on, and how often to do so.
106 137
107=item headers => hashref 138=item headers => hashref
108 139
109The 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:>.
110 143
111=item timeout => $seconds 144=item timeout => $seconds
112 145
113The 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
114the 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.
… …
123 156
124=item body => $string 157=item body => $string
125 158
126The request body, usually empty. Will be-sent as-is (future versions of 159The request body, usually empty. Will be-sent as-is (future versions of
127this module might offer more options). 160this module might offer more options).
161
162=item cookie_jar => $hash_ref
163
164Passing this parameter enables (simplified) cookie-processing, loosely
165based on the original netscape specification.
166
167The C<$hash_ref> must be an (initially empty) hash reference which will
168get updated automatically. It is possible to save the cookie_jar to
169persistent storage with something like JSON or Storable, but this is not
170recommended, as expire times are currently being ignored.
171
172Note that this cookie implementation is not of very high quality, nor
173meant to be complete. If you want complete cookie management you have to
174do that on your own. C<cookie_jar> is meant as a quick fix to get some
175cookie-using sites working. Cookies are a privacy disaster, do not use
176them unless required to.
128 177
129=back 178=back
130 179
131Example: make a simple HTTP GET request for http://www.nethype.de/ 180Example: make a simple HTTP GET request for http://www.nethype.de/
132 181
… …
146 use Data::Dumper; 195 use Data::Dumper;
147 print Dumper $hdr; 196 print Dumper $hdr;
148 } 197 }
149 ; 198 ;
150 199
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 $request;
209
151=cut 210=cut
152 211
212sub _slot_schedule;
213sub _slot_schedule($) {
214 my $host = shift;
215
216 while ($CO_SLOT{$host}[0] < $MAX_PER_HOST) {
217 if (my $cb = shift @{ $CO_SLOT{$host}[1] }) {
218 # somebody wants that slot
219 ++$CO_SLOT{$host}[0];
220 ++$ACTIVE;
221
222 $cb->(AnyEvent::Util::guard {
223 --$ACTIVE;
224 --$CO_SLOT{$host}[0];
225 _slot_schedule $host;
226 });
227 } else {
228 # nobody wants the slot, maybe we can forget about it
229 delete $CO_SLOT{$host} unless $CO_SLOT{$host}[0];
230 last;
231 }
232 }
233}
234
235# wait for a free slot on host, call callback
236sub _get_slot($$) {
237 push @{ $CO_SLOT{$_[0]}[1] }, $_[1];
238
239 _slot_schedule $_[0];
240}
241
153sub http_request($$$;@) { 242sub http_request($$@) {
154 my $cb = pop; 243 my $cb = pop;
155 my ($method, $url, %arg) = @_; 244 my ($method, $url, %arg) = @_;
156 245
157 my %hdr; 246 my %hdr;
158 247
… …
162 while (my ($k, $v) = each %$hdr) { 251 while (my ($k, $v) = each %$hdr) {
163 $hdr{lc $k} = $v; 252 $hdr{lc $k} = $v;
164 } 253 }
165 } 254 }
166 255
167 my $recurse = exists $arg{recurse} ? $arg{recurse} : $MAX_RECURSE; 256 my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;
168 257
169 return $cb->(undef, { Status => 599, Reason => "recursion limit reached" }) 258 return $cb->(undef, { Status => 599, Reason => "recursion limit reached", URL => $url })
170 if $recurse < 0; 259 if $recurse < 0;
171 260
172 my $proxy = $arg{proxy} || $PROXY; 261 my $proxy = $arg{proxy} || $PROXY;
173 my $timeout = $arg{timeout} || $TIMEOUT; 262 my $timeout = $arg{timeout} || $TIMEOUT;
174 263
175 $hdr{"user-agent"} ||= $USERAGENT; 264 $hdr{"user-agent"} ||= $USERAGENT;
176 265
177 my ($host, $port, $path, $scheme); 266 my ($scheme, $authority, $upath, $query, $fragment) =
267 $url =~ m|(?:([^:/?#]+):)?(?://([^/?#]*))?([^?#]*)(?:\?([^#]*))?(?:#(.*))?|;
268
269 $scheme = lc $scheme;
270
271 my $uport = $scheme eq "http" ? 80
272 : $scheme eq "https" ? 443
273 : return $cb->(undef, { Status => 599, Reason => "only http and https URL schemes supported", URL => $url });
274
275 $hdr{referer} ||= "$scheme://$authority$upath"; # leave out fragment and query string, just a heuristic
276
277 $authority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x
278 or return $cb->(undef, { Status => 599, Reason => "unparsable URL", URL => $url });
279
280 my $uhost = $1;
281 $uport = $2 if defined $2;
282
283 $uhost =~ s/^\[(.*)\]$/$1/;
284 $upath .= "?$query" if length $query;
285
286 $upath =~ s%^/?%/%;
287
288 # cookie processing
289 if (my $jar = $arg{cookie_jar}) {
290 %$jar = () if $jar->{version} < 1;
291
292 my @cookie;
293
294 while (my ($chost, $v) = each %$jar) {
295 next unless $chost eq substr $uhost, -length $chost;
296 next unless $chost =~ /^\./;
297
298 while (my ($cpath, $v) = each %$v) {
299 next unless $cpath eq substr $upath, 0, length $cpath;
300
301 while (my ($k, $v) = each %$v) {
302 next if $scheme ne "https" && exists $v->{secure};
303 push @cookie, "$k=$v->{value}";
304 }
305 }
306 }
307
308 $hdr{cookie} = join "; ", @cookie
309 if @cookie;
310 }
311
312 my ($rhost, $rport, $rpath); # request host, port, path
178 313
179 if ($proxy) { 314 if ($proxy) {
180 ($host, $port, $scheme) = @$proxy; 315 ($rhost, $rport, $scheme) = @$proxy;
181 $path = $url; 316 $rpath = $url;
182 } else { 317 } else {
183 ($scheme, my $authority, $path, my $query, my $fragment) = 318 ($rhost, $rport, $rpath) = ($uhost, $uport, $upath);
184 $url =~ m|(?:([^:/?#]+):)?(?://([^/?#]*))?([^?#]*)(?:\?([^#]*))?(?:#(.*))?|;
185
186 $port = $scheme eq "http" ? 80
187 : $scheme eq "https" ? 443
188 : return $cb->(undef, { Status => 599, Reason => "$url: only http and https URLs supported" });
189
190 $authority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x
191 or return $cb->(undef, { Status => 599, Reason => "$url: unparsable URL" });
192
193 $host = $1;
194 $port = $2 if defined $2;
195
196 $host =~ s/^\[(.*)\]$/$1/;
197 $path .= "?$query" if length $query;
198
199 $path = "/" unless $path;
200
201 $hdr{host} = $host = lc $host; 319 $hdr{host} = $uhost;
202 } 320 }
203 321
204 $scheme = lc $scheme;
205
206 my %state;
207
208 $hdr{"content-length"} = length $arg{body}; 322 $hdr{"content-length"} = length $arg{body};
209 323
324 my %state = (connect_guard => 1);
325
326 _get_slot $uhost, sub {
327 $state{slot_guard} = shift;
328
329 return unless $state{connect_guard};
330
210 $state{connect_guard} = AnyEvent::Socket::tcp_connect $host, $port, sub { 331 $state{connect_guard} = AnyEvent::Socket::tcp_connect $rhost, $rport, sub {
211 $state{fh} = shift 332 $state{fh} = shift
212 or return $cb->(undef, { Status => 599, Reason => "$!" }); 333 or return $cb->(undef, { Status => 599, Reason => "$!", URL => $url });
213 334
214 delete $state{connect_guard}; # reduce memory usage, save a tree 335 delete $state{connect_guard}; # reduce memory usage, save a tree
215 336
216 # get handle 337 # get handle
217 $state{handle} = new AnyEvent::Handle 338 $state{handle} = new AnyEvent::Handle
218 fh => $state{fh}, 339 fh => $state{fh},
219 ($scheme eq "https" ? (tls => "connect") : ()); 340 ($scheme eq "https" ? (tls => "connect") : ());
220 341
221 # limit the number of persistent connections 342 # limit the number of persistent connections
222 if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) { 343 if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {
223 ++$KA_COUNT{$_[1]}; 344 ++$KA_COUNT{$_[1]};
224 $state{handle}{ka_count_guard} = AnyEvent::Util::guard { --$KA_COUNT{$_[1]} }; 345 $state{handle}{ka_count_guard} = AnyEvent::Util::guard { --$KA_COUNT{$_[1]} };
225 $hdr{connection} = "keep-alive"; 346 $hdr{connection} = "keep-alive";
226 delete $hdr{connection}; # keep-alive not yet supported 347 delete $hdr{connection}; # keep-alive not yet supported
227 } else { 348 } else {
228 delete $hdr{connection}; 349 delete $hdr{connection};
229 } 350 }
230 351
231 # (re-)configure handle 352 # (re-)configure handle
232 $state{handle}->timeout ($timeout); 353 $state{handle}->timeout ($timeout);
233 $state{handle}->on_error (sub { 354 $state{handle}->on_error (sub {
355 my $errno = "$!";
234 %state = (); 356 %state = ();
235 $cb->(undef, { Status => 599, Reason => "$!" }); 357 $cb->(undef, { Status => 599, Reason => $errno, URL => $url });
236 }); 358 });
237 $state{handle}->on_eof (sub { 359 $state{handle}->on_eof (sub {
238 %state = (); 360 %state = ();
239 $cb->(undef, { Status => 599, Reason => "unexpected end-of-file" }); 361 $cb->(undef, { Status => 599, Reason => "unexpected end-of-file", URL => $url });
240 }); 362 });
241 363
242 # send request 364 # send request
243 $state{handle}->push_write ( 365 $state{handle}->push_write (
244 "$method $path HTTP/1.0\015\012" 366 "$method $rpath HTTP/1.0\015\012"
245 . (join "", map "$_: $hdr{$_}\015\012", keys %hdr) 367 . (join "", map "$_: $hdr{$_}\015\012", keys %hdr)
246 . "\015\012" 368 . "\015\012"
247 . (delete $arg{body}) 369 . (delete $arg{body})
248 );
249
250 %hdr = (); # reduce memory usage, save a kitten
251
252 # status line
253 $state{handle}->push_read (line => qr/\015?\012/, sub {
254 $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) \s+ ([^\015\012]+)/ix
255 or return (%state = (), $cb->(undef, { Status => 599, Reason => "invalid server response ($_[1])" }));
256
257 my %hdr = ( # response headers
258 HTTPVersion => ",$1",
259 Status => ",$2",
260 Reason => ",$3",
261 ); 370 );
262 371
372 %hdr = (); # reduce memory usage, save a kitten
373
374 # status line
375 $state{handle}->push_read (line => qr/\015?\012/, sub {
376 $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
377 or return (%state = (), $cb->(undef, { Status => 599, Reason => "invalid server response ($_[1])", URL => $url }));
378
379 my %hdr = ( # response headers
380 HTTPVersion => "\x00$1",
381 Status => "\x00$2",
382 Reason => "\x00$3",
383 URL => "\x00$url"
384 );
385
263 # headers, could be optimized a bit 386 # headers, could be optimized a bit
264 $state{handle}->unshift_read (line => qr/\015?\012\015?\012/, sub { 387 $state{handle}->unshift_read (line => qr/\015?\012\015?\012/, sub {
265 for ("$_[1]\012") { 388 for ("$_[1]\012") {
266 # we support spaces in field names, as lotus domino 389 # we support spaces in field names, as lotus domino
267 # creates them. 390 # creates them.
268 $hdr{lc $1} .= ",$2" 391 $hdr{lc $1} .= "\x00$2"
269 while /\G 392 while /\G
270 ([^:\000-\037]+): 393 ([^:\000-\037]+):
271 [\011\040]* 394 [\011\040]*
272 ((?: [^\015\012]+ | \015?\012[\011\040] )*) 395 ((?: [^\015\012]+ | \015?\012[\011\040] )*)
273 \015?\012 396 \015?\012
274 /gxc; 397 /gxc;
275 398
276 /\G$/ 399 /\G$/
277 or return $cb->(undef, { Status => 599, Reason => "garbled response headers" }); 400 or return (%state = (), $cb->(undef, { Status => 599, Reason => "garbled response headers", URL => $url }));
278 } 401 }
279 402
280 substr $_, 0, 1, "" 403 substr $_, 0, 1, ""
281 for values %hdr; 404 for values %hdr;
282 405
283 my $finish = sub { 406 my $finish = sub {
407 %state = ();
408
409 # set-cookie processing
410 if ($arg{cookie_jar} && exists $hdr{"set-cookie"}) {
411 for (split /\x00/, $hdr{"set-cookie"}) {
412 my ($cookie, @arg) = split /;\s*/;
413 my ($name, $value) = split /=/, $cookie, 2;
414 my %kv = (value => $value, map { split /=/, $_, 2 } @arg);
415
416 my $cdom = (delete $kv{domain}) || $uhost;
417 my $cpath = (delete $kv{path}) || "/";
418
419 $cdom =~ s/^\.?/./; # make sure it starts with a "."
420
421 next if $cdom =~ /\.$/;
422
423 # this is not rfc-like and not netscape-like. go figure.
424 my $ndots = $cdom =~ y/.//;
425 next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
426
427 # store it
428 $arg{cookie_jar}{version} = 1;
429 $arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv;
430 }
431 }
432
433 # microsoft and other shitheads don't give a shit for following standards,
434 # try to support some common forms of broken Location headers.
435 if ($_[1]{location} !~ /^(?: $ | [^:\/?\#]+ : )/x) {
436 $_[1]{location} =~ s/^\.\/+//;
437
438 my $url = "$scheme://$uhost:$uport";
439
440 unless ($_[1]{location} =~ s/^\///) {
441 $url .= $upath;
442 $url =~ s/\/[^\/]*$//;
443 }
444
445 $_[1]{location} = "$url/$_[1]{location}";
446 }
447
284 if ($_[1]{Status} =~ /^30[12]$/ && $recurse) { 448 if ($_[1]{Status} =~ /^30[12]$/ && $recurse && $method ne "POST") {
449 # apparently, mozilla et al. just change POST to GET here
450 # more research is needed before we do the same
285 http_request ($method, $_[1]{location}, %arg, recurse => $recurse - 1, $cb); 451 http_request ($method, $_[1]{location}, %arg, recurse => $recurse - 1, $cb);
452 } elsif ($_[1]{Status} == 303 && $recurse) {
453 # even http/1.1 is unlear on how to mutate the method
454 $method = "GET" unless $method eq "HEAD";
455 http_request ($method => $_[1]{location}, %arg, recurse => $recurse - 1, $cb);
456 } elsif ($_[1]{Status} == 307 && $recurse && $method =~ /^(?:GET|HEAD)$/) {
457 http_request ($method => $_[1]{location}, %arg, recurse => $recurse - 1, $cb);
458 } else {
459 $cb->($_[0], $_[1]);
460 }
461 };
462
463 if ($hdr{Status} =~ /^(?:1..|204|304)$/ or $method eq "HEAD") {
464 $finish->(undef, \%hdr);
286 } else { 465 } else {
287 $cb->($_[0], $_[1]); 466 if (exists $hdr{"content-length"}) {
467 $_[0]->unshift_read (chunk => $hdr{"content-length"}, sub {
468 # could cache persistent connection now
469 if ($hdr{connection} =~ /\bkeep-alive\b/i) {
470 # but we don't, due to misdesigns, this is annoyingly complex
471 };
472
473 $finish->($_[1], \%hdr);
474 });
475 } else {
476 # too bad, need to read until we get an error or EOF,
477 # no way to detect winged data.
478 $_[0]->on_error (sub {
479 $finish->($_[0]{rbuf}, \%hdr);
480 });
481 $_[0]->on_eof (undef);
482 $_[0]->on_read (sub { });
483 }
288 } 484 }
289 }; 485 });
290
291 if ($hdr{Status} =~ /^(?:1..|204|304)$/ or $method eq "HEAD") {
292 %state = ();
293 $finish->(undef, \%hdr);
294 } else {
295 if (exists $hdr{"content-length"}) {
296 $_[0]->unshift_read (chunk => $hdr{"content-length"}, sub {
297 # could cache persistent connection now
298 if ($hdr{connection} =~ /\bkeep-alive\b/i) {
299 # but we don't, due to misdesigns, this is annoyingly complex
300 };
301
302 %state = ();
303 $finish->($_[1], \%hdr);
304 });
305 } else {
306 # too bad, need to read until we get an error or EOF,
307 # no way to detect winged data.
308 $_[0]->on_error (sub {
309 %state = ();
310 $finish->($_[0]{rbuf}, \%hdr);
311 });
312 $_[0]->on_eof (undef);
313 $_[0]->on_read (sub { });
314 }
315 }
316 }); 486 });
487 }, sub {
488 $timeout
317 }); 489 };
318 }, sub {
319 $timeout
320 }; 490 };
321 491
322 defined wantarray && AnyEvent::Util::guard { %state = () } 492 defined wantarray && AnyEvent::Util::guard { %state = () }
323} 493}
324 494
325sub http_get($$;@) { 495sub http_get($@) {
326 unshift @_, "GET"; 496 unshift @_, "GET";
327 &http_request 497 &http_request
328} 498}
329 499
330sub http_head($$;@) { 500sub http_head($@) {
331 unshift @_, "HEAD"; 501 unshift @_, "HEAD";
332 &http_request 502 &http_request
333} 503}
334 504
335sub http_post($$$;@) { 505sub http_post($$@) {
506 my $url = shift;
336 unshift @_, "POST", "body"; 507 unshift @_, "POST", $url, "body";
337 &http_request 508 &http_request
338} 509}
339 510
340=back 511=back
341 512
… …
367 538
368The maximum time to cache a persistent connection, in seconds (default: 2). 539The maximum time to cache a persistent connection, in seconds (default: 2).
369 540
370Not implemented currently. 541Not implemented currently.
371 542
543=item $AnyEvent::HTTP::ACTIVE
544
545The number of active connections. This is not the number of currently
546running requests, but the number of currently open and non-idle TCP
547connections. This number of can be useful for load-leveling.
548
372=back 549=back
373 550
374=cut 551=cut
375 552
376sub set_proxy($) { 553sub set_proxy($) {
… …
384 561
385L<AnyEvent>. 562L<AnyEvent>.
386 563
387=head1 AUTHOR 564=head1 AUTHOR
388 565
389 Marc Lehmann <schmorp@schmorp.de> 566 Marc Lehmann <schmorp@schmorp.de>
390 http://home.schmorp.de/ 567 http://home.schmorp.de/
391 568
392=cut 569=cut
393 570
3941 5711
395 572

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines