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3 | AnyEvent::HTTP - simple but non-blocking HTTP/HTTPS client |
3 | AnyEvent::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; |
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8 | |
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9 | http_get "http://www.nethype.de/", sub { print $_[1] }; |
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10 | |
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11 | # ... do something else here |
8 | |
12 | |
9 | =head1 DESCRIPTION |
13 | =head1 DESCRIPTION |
10 | |
14 | |
11 | This module is an L<AnyEvent> user, you need to make sure that you use and |
15 | This module is an L<AnyEvent> user, you need to make sure that you use and |
12 | run a supported event loop. |
16 | run a supported event loop. |
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17 | |
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18 | This module implements a simple, stateless and non-blocking HTTP |
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19 | client. It supports GET, POST and other request methods, cookies and more, |
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20 | all on a very low level. It can follow redirects supports proxies and |
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21 | automatically limits the number of connections to the values specified in |
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22 | the RFC. |
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23 | |
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24 | It should generally be a "good client" that is enough for most HTTP |
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25 | tasks. Simple tasks should be simple, but complex tasks should still be |
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26 | possible as the user retains control over request and response headers. |
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27 | |
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28 | The caller is responsible for authentication management, cookies (if |
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29 | the simplistic implementation in this module doesn't suffice), referer |
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30 | and other high-level protocol details for which this module offers only |
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31 | limited support. |
13 | |
32 | |
14 | =head2 METHODS |
33 | =head2 METHODS |
15 | |
34 | |
16 | =over 4 |
35 | =over 4 |
17 | |
36 | |
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29 | use AnyEvent::Socket (); |
48 | use AnyEvent::Socket (); |
30 | use AnyEvent::Handle (); |
49 | use AnyEvent::Handle (); |
31 | |
50 | |
32 | use base Exporter::; |
51 | use base Exporter::; |
33 | |
52 | |
34 | our $VERSION = '1.0'; |
53 | our $VERSION = '1.01'; |
35 | |
54 | |
36 | our @EXPORT = qw(http_get http_request); |
55 | our @EXPORT = qw(http_get http_post http_head http_request); |
37 | |
56 | |
38 | 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)"; |
39 | our $MAX_RECURSE = 10; |
58 | our $MAX_RECURSE = 10; |
40 | our $MAX_PERSISTENT = 8; |
59 | our $MAX_PERSISTENT = 8; |
41 | our $PERSISTENT_TIMEOUT = 2; |
60 | our $PERSISTENT_TIMEOUT = 2; |
42 | our $TIMEOUT = 300; |
61 | our $TIMEOUT = 300; |
43 | |
62 | |
44 | # changing these is evil |
63 | # changing these is evil |
45 | our $MAX_PERSISTENT_PER_HOST = 2; |
64 | our $MAX_PERSISTENT_PER_HOST = 2; |
46 | our $MAX_PER_HOST = 4; # not respected yet :( |
65 | our $MAX_PER_HOST = 4; |
47 | |
66 | |
48 | our $PROXY; |
67 | our $PROXY; |
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68 | our $ACTIVE = 0; |
49 | |
69 | |
50 | my %KA_COUNT; # number of open keep-alive connections per host |
70 | my %KA_COUNT; # number of open keep-alive connections per host |
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71 | my %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, $headers) |
53 | |
74 | |
54 | Executes an HTTP-GET request. See the http_request function for details on |
75 | Executes an HTTP-GET request. See the http_request function for details on |
55 | additional parameters. |
76 | additional parameters. |
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72 | The callback will be called with the response data as first argument |
93 | The callback will be called with the response data as first argument |
73 | (or C<undef> if it wasn't available due to errors), and a hash-ref with |
94 | (or C<undef> if it wasn't available due to errors), and a hash-ref with |
74 | response headers as second argument. |
95 | response headers as second argument. |
75 | |
96 | |
76 | All the headers in that hash are lowercased. In addition to the response |
97 | All the headers in that hash are lowercased. In addition to the response |
77 | headers, the three "pseudo-headers" C<HTTPVersion>, C<Status> and |
98 | headers, the "pseudo-headers" C<HTTPVersion>, C<Status> and C<Reason> |
78 | C<Reason> contain the three parts of the HTTP Status-Line of the same |
99 | contain the three parts of the HTTP Status-Line of the same name. The |
79 | name. |
100 | pseudo-header C<URL> contains the original URL (which can differ from the |
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101 | requested URL when following redirects). |
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102 | |
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103 | If the server sends a header multiple lines, then their contents will be |
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104 | joined together with C<\x00>. |
80 | |
105 | |
81 | If an internal error occurs, such as not being able to resolve a hostname, |
106 | If an internal error occurs, such as not being able to resolve a hostname, |
82 | then C<$data> will be C<undef>, C<< $headers->{Status} >> will be C<599> |
107 | then C<$data> will be C<undef>, C<< $headers->{Status} >> will be C<599> |
83 | and the C<Reason> pseudo-header will contain an error message. |
108 | and the C<Reason> pseudo-header will contain an error message. |
84 | |
109 | |
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104 | Whether to recurse requests or not, e.g. on redirects, authentication |
129 | Whether to recurse requests or not, e.g. on redirects, authentication |
105 | retries and so on, and how often to do so. |
130 | retries and so on, and how often to do so. |
106 | |
131 | |
107 | =item headers => hashref |
132 | =item headers => hashref |
108 | |
133 | |
109 | The request headers to use. |
134 | The request headers to use. Currently, C<http_request> may provide its |
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135 | own C<Host:>, C<Content-Length:>, C<Connection:> and C<Cookie:> headers |
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136 | and will provide defaults for C<User-Agent:> and C<Referer:>. |
110 | |
137 | |
111 | =item timeout => $seconds |
138 | =item timeout => $seconds |
112 | |
139 | |
113 | The time-out to use for various stages - each connect attempt will reset |
140 | The time-out to use for various stages - each connect attempt will reset |
114 | the timeout, as will read or write activity. Default timeout is 5 minutes. |
141 | the timeout, as will read or write activity. Default timeout is 5 minutes. |
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124 | =item body => $string |
151 | =item body => $string |
125 | |
152 | |
126 | The request body, usually empty. Will be-sent as-is (future versions of |
153 | The request body, usually empty. Will be-sent as-is (future versions of |
127 | this module might offer more options). |
154 | this module might offer more options). |
128 | |
155 | |
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156 | =item cookie_jar => $hash_ref |
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157 | |
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158 | Passing this parameter enables (simplified) cookie-processing, loosely |
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159 | based on the original netscape specification. |
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160 | |
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161 | The C<$hash_ref> must be an (initially empty) hash reference which will |
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162 | get updated automatically. It is possible to save the cookie_jar to |
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163 | persistent storage with something like JSON or Storable, but this is not |
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164 | recommended, as expire times are currently being ignored. |
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165 | |
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166 | Note that this cookie implementation is not of very high quality, nor |
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167 | meant to be complete. If you want complete cookie management you have to |
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168 | do that on your own. C<cookie_jar> is meant as a quick fix to get some |
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169 | cookie-using sites working. Cookies are a privacy disaster, do not use |
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170 | them unless required to. |
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171 | |
129 | =back |
172 | =back |
130 | |
173 | |
131 | =back |
174 | Example: make a simple HTTP GET request for http://www.nethype.de/ |
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175 | |
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176 | http_request GET => "http://www.nethype.de/", sub { |
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177 | my ($body, $hdr) = @_; |
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178 | print "$body\n"; |
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179 | }; |
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180 | |
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181 | Example: make a HTTP HEAD request on https://www.google.com/, use a |
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182 | timeout of 30 seconds. |
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183 | |
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184 | http_request |
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185 | GET => "https://www.google.com", |
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186 | timeout => 30, |
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187 | sub { |
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188 | my ($body, $hdr) = @_; |
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189 | use Data::Dumper; |
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190 | print Dumper $hdr; |
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191 | } |
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192 | ; |
132 | |
193 | |
133 | =cut |
194 | =cut |
134 | |
195 | |
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196 | sub _slot_schedule; |
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197 | sub _slot_schedule($) { |
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198 | my $host = shift; |
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199 | |
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200 | while ($CO_SLOT{$host}[0] < $MAX_PER_HOST) { |
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201 | if (my $cb = shift @{ $CO_SLOT{$host}[1] }) { |
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202 | # somebody wants that slot |
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203 | ++$CO_SLOT{$host}[0]; |
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204 | ++$ACTIVE; |
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205 | |
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206 | $cb->(AnyEvent::Util::guard { |
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207 | --$ACTIVE; |
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208 | --$CO_SLOT{$host}[0]; |
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209 | _slot_schedule $host; |
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210 | }); |
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211 | } else { |
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212 | # nobody wants the slot, maybe we can forget about it |
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213 | delete $CO_SLOT{$host} unless $CO_SLOT{$host}[0]; |
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214 | last; |
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215 | } |
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216 | } |
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217 | } |
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218 | |
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219 | # wait for a free slot on host, call callback |
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220 | sub _get_slot($$) { |
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221 | push @{ $CO_SLOT{$_[0]}[1] }, $_[1]; |
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222 | |
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223 | _slot_schedule $_[0]; |
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224 | } |
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225 | |
135 | sub http_request($$$;@) { |
226 | sub http_request($$@) { |
136 | my $cb = pop; |
227 | my $cb = pop; |
137 | my ($method, $url, %arg) = @_; |
228 | my ($method, $url, %arg) = @_; |
138 | |
229 | |
139 | my %hdr; |
230 | my %hdr; |
140 | |
231 | |
141 | $method = uc $method; |
232 | $method = uc $method; |
142 | |
233 | |
143 | if (my $hdr = delete $arg{headers}) { |
234 | if (my $hdr = $arg{headers}) { |
144 | while (my ($k, $v) = each %$hdr) { |
235 | while (my ($k, $v) = each %$hdr) { |
145 | $hdr{lc $k} = $v; |
236 | $hdr{lc $k} = $v; |
146 | } |
237 | } |
147 | } |
238 | } |
148 | |
239 | |
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240 | my $recurse = exists $arg{recurse} ? $arg{recurse} : $MAX_RECURSE; |
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241 | |
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242 | return $cb->(undef, { Status => 599, Reason => "recursion limit reached", URL => $url }) |
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243 | if $recurse < 0; |
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244 | |
149 | my $proxy = $arg{proxy} || $PROXY; |
245 | my $proxy = $arg{proxy} || $PROXY; |
150 | my $timeout = $arg{timeout} || $TIMEOUT; |
246 | my $timeout = $arg{timeout} || $TIMEOUT; |
151 | my $recurse = exists $arg{recurse} ? $arg{recurse} : $MAX_RECURSE; |
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152 | |
247 | |
153 | $hdr{"user-agent"} ||= $USERAGENT; |
248 | $hdr{"user-agent"} ||= $USERAGENT; |
154 | |
249 | |
155 | my ($host, $port, $path, $scheme); |
250 | my ($scheme, $authority, $upath, $query, $fragment) = |
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251 | $url =~ m|(?:([^:/?#]+):)?(?://([^/?#]*))?([^?#]*)(?:\?([^#]*))?(?:#(.*))?|; |
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252 | |
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253 | $scheme = lc $scheme; |
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254 | |
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255 | my $uport = $scheme eq "http" ? 80 |
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256 | : $scheme eq "https" ? 443 |
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257 | : return $cb->(undef, { Status => 599, Reason => "only http and https URL schemes supported", URL => $url }); |
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258 | |
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259 | $hdr{referer} ||= "$scheme://$authority$upath"; # leave out fragment and query string, just a heuristic |
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260 | |
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261 | $authority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x |
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262 | or return $cb->(undef, { Status => 599, Reason => "unparsable URL", URL => $url }); |
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263 | |
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264 | my $uhost = $1; |
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265 | $uport = $2 if defined $2; |
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266 | |
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267 | $uhost =~ s/^\[(.*)\]$/$1/; |
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268 | $upath .= "?$query" if length $query; |
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269 | |
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270 | $upath =~ s%^/?%/%; |
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271 | |
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272 | # cookie processing |
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273 | if (my $jar = $arg{cookie_jar}) { |
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274 | %$jar = () if $jar->{version} < 1; |
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275 | |
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276 | my @cookie; |
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277 | |
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278 | while (my ($chost, $v) = each %$jar) { |
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279 | next unless $chost eq substr $uhost, -length $chost; |
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280 | next unless $chost =~ /^\./; |
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281 | |
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282 | while (my ($cpath, $v) = each %$v) { |
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283 | next unless $cpath eq substr $upath, 0, length $cpath; |
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284 | |
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285 | while (my ($k, $v) = each %$v) { |
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286 | next if $scheme ne "https" && exists $v->{secure}; |
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287 | push @cookie, "$k=$v->{value}"; |
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288 | } |
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289 | } |
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290 | } |
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291 | |
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292 | $hdr{cookie} = join "; ", @cookie |
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293 | if @cookie; |
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294 | } |
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295 | |
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296 | my ($rhost, $rport, $rpath); # request host, port, path |
156 | |
297 | |
157 | if ($proxy) { |
298 | if ($proxy) { |
158 | ($host, $port, $scheme) = @$proxy; |
299 | ($rhost, $rport, $scheme) = @$proxy; |
159 | $path = $url; |
300 | $rpath = $url; |
160 | } else { |
301 | } else { |
161 | ($scheme, my $authority, $path, my $query, my $fragment) = |
302 | ($rhost, $rport, $rpath) = ($uhost, $uport, $upath); |
162 | $url =~ m|(?:([^:/?#]+):)?(?://([^/?#]*))?([^?#]*)(?:\?([^#]*))?(?:#(.*))?|; |
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163 | |
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164 | $port = $scheme eq "http" ? 80 |
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165 | : $scheme eq "https" ? 443 |
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166 | : croak "$url: only http and https URLs supported"; |
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167 | |
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168 | $authority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x |
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169 | or croak "$authority: unparsable URL"; |
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170 | |
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171 | $host = $1; |
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172 | $port = $2 if defined $2; |
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173 | |
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174 | $host =~ s/^\[(.*)\]$/$1/; |
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175 | $path .= "?$query" if length $query; |
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176 | |
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177 | $path = "/" unless $path; |
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178 | |
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179 | $hdr{host} = $host = lc $host; |
303 | $hdr{host} = $uhost; |
180 | } |
304 | } |
181 | |
305 | |
182 | $scheme = lc $scheme; |
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183 | |
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184 | my %state; |
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185 | |
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186 | $state{body} = delete $arg{body}; |
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187 | |
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188 | $hdr{"content-length"} = length $state{body}; |
306 | $hdr{"content-length"} = length $arg{body}; |
189 | |
307 | |
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308 | my %state = (connect_guard => 1); |
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309 | |
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310 | _get_slot $uhost, sub { |
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311 | $state{slot_guard} = shift; |
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312 | |
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313 | return unless $state{connect_guard}; |
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314 | |
190 | $state{connect_guard} = AnyEvent::Socket::tcp_connect $host, $port, sub { |
315 | $state{connect_guard} = AnyEvent::Socket::tcp_connect $rhost, $rport, sub { |
191 | $state{fh} = shift |
316 | $state{fh} = shift |
192 | or return $cb->(undef, { Status => 599, Reason => "$!" }); |
317 | or return $cb->(undef, { Status => 599, Reason => "$!", URL => $url }); |
193 | |
318 | |
194 | delete $state{connect_guard}; # reduce memory usage, save a tree |
319 | delete $state{connect_guard}; # reduce memory usage, save a tree |
195 | |
320 | |
196 | # get handle |
321 | # get handle |
197 | $state{handle} = new AnyEvent::Handle |
322 | $state{handle} = new AnyEvent::Handle |
198 | fh => $state{fh}, |
323 | fh => $state{fh}, |
199 | ($scheme eq "https" ? (tls => "connect") : ()); |
324 | ($scheme eq "https" ? (tls => "connect") : ()); |
200 | |
325 | |
201 | # limit the number of persistent connections |
326 | # limit the number of persistent connections |
202 | if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) { |
327 | if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) { |
203 | ++$KA_COUNT{$_[1]}; |
328 | ++$KA_COUNT{$_[1]}; |
204 | $state{handle}{ka_count_guard} = AnyEvent::Util::guard { --$KA_COUNT{$_[1]} }; |
329 | $state{handle}{ka_count_guard} = AnyEvent::Util::guard { --$KA_COUNT{$_[1]} }; |
205 | $hdr{connection} = "keep-alive"; |
330 | $hdr{connection} = "keep-alive"; |
206 | delete $hdr{connection}; # keep-alive not yet supported |
331 | delete $hdr{connection}; # keep-alive not yet supported |
207 | } else { |
332 | } else { |
208 | delete $hdr{connection}; |
333 | delete $hdr{connection}; |
209 | } |
334 | } |
210 | |
335 | |
211 | # (re-)configure handle |
336 | # (re-)configure handle |
212 | $state{handle}->timeout ($timeout); |
337 | $state{handle}->timeout ($timeout); |
213 | $state{handle}->on_error (sub { |
338 | $state{handle}->on_error (sub { |
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339 | my $errno = "$!"; |
214 | %state = (); |
340 | %state = (); |
215 | $cb->(undef, { Status => 599, Reason => "$!" }); |
341 | $cb->(undef, { Status => 599, Reason => $errno, URL => $url }); |
216 | }); |
342 | }); |
217 | $state{handle}->on_eof (sub { |
343 | $state{handle}->on_eof (sub { |
218 | %state = (); |
344 | %state = (); |
219 | $cb->(undef, { Status => 599, Reason => "unexpected end-of-file" }); |
345 | $cb->(undef, { Status => 599, Reason => "unexpected end-of-file", URL => $url }); |
220 | }); |
346 | }); |
221 | |
347 | |
222 | # send request |
348 | # send request |
223 | $state{handle}->push_write ( |
349 | $state{handle}->push_write ( |
224 | "$method $path HTTP/1.0\015\012" |
350 | "$method $rpath HTTP/1.0\015\012" |
225 | . (join "", map "$_: $hdr{$_}\015\012", keys %hdr) |
351 | . (join "", map "$_: $hdr{$_}\015\012", keys %hdr) |
226 | . "\015\012" |
352 | . "\015\012" |
227 | . (delete $state{body}) |
353 | . (delete $arg{body}) |
228 | ); |
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229 | |
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230 | %hdr = (); # reduce memory usage, save a kitten |
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231 | |
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232 | # status line |
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233 | $state{handle}->push_read (line => qr/\015?\012/, sub { |
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234 | $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) \s+ ([^\015\012]+)/ix |
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235 | or return (%state = (), $cb->(undef, { Status => 599, Reason => "invalid server response ($_[1])" })); |
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236 | |
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237 | my %hdr = ( # response headers |
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238 | HTTPVersion => ",$1", |
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239 | Status => ",$2", |
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240 | Reason => ",$3", |
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241 | ); |
354 | ); |
242 | |
355 | |
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356 | %hdr = (); # reduce memory usage, save a kitten |
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357 | |
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358 | # status line |
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359 | $state{handle}->push_read (line => qr/\015?\012/, sub { |
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360 | $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) \s+ ([^\015\012]+)/ix |
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361 | or return (%state = (), $cb->(undef, { Status => 599, Reason => "invalid server response ($_[1])", URL => $url })); |
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362 | |
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363 | my %hdr = ( # response headers |
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364 | HTTPVersion => "\x00$1", |
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365 | Status => "\x00$2", |
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366 | Reason => "\x00$3", |
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367 | URL => "\x00$url" |
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368 | ); |
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369 | |
243 | # headers, could be optimized a bit |
370 | # headers, could be optimized a bit |
244 | $state{handle}->unshift_read (line => qr/\015?\012\015?\012/, sub { |
371 | $state{handle}->unshift_read (line => qr/\015?\012\015?\012/, sub { |
245 | for ("$_[1]\012") { |
372 | for ("$_[1]\012") { |
246 | # we support spaces in field names, as lotus domino |
373 | # we support spaces in field names, as lotus domino |
247 | # creates them. |
374 | # creates them. |
248 | $hdr{lc $1} .= ",$2" |
375 | $hdr{lc $1} .= "\x00$2" |
249 | while /\G |
376 | while /\G |
250 | ([^:\000-\037]+): |
377 | ([^:\000-\037]+): |
251 | [\011\040]* |
378 | [\011\040]* |
252 | ((?: [^\015\012]+ | \015?\012[\011\040] )*) |
379 | ((?: [^\015\012]+ | \015?\012[\011\040] )*) |
253 | \015?\012 |
380 | \015?\012 |
254 | /gxc; |
381 | /gxc; |
255 | |
382 | |
256 | /\G$/ |
383 | /\G$/ |
257 | or return $cb->(undef, { Status => 599, Reason => "garbled response headers" }); |
384 | or return (%state = (), $cb->(undef, { Status => 599, Reason => "garbled response headers", URL => $url })); |
258 | } |
385 | } |
259 | |
386 | |
260 | substr $_, 0, 1, "" |
387 | substr $_, 0, 1, "" |
261 | for values %hdr; |
388 | for values %hdr; |
262 | |
389 | |
263 | if ($method eq "HEAD") { |
390 | my $finish = sub { |
264 | %state = (); |
391 | %state = (); |
265 | $cb->(undef, \%hdr); |
392 | |
266 | } else { |
393 | # set-cookie processing |
267 | if (exists $hdr{"content-length"}) { |
394 | if ($arg{cookie_jar} && exists $hdr{"set-cookie"}) { |
268 | $_[0]->unshift_read (chunk => $hdr{"content-length"}, sub { |
395 | for (split /\x00/, $hdr{"set-cookie"}) { |
269 | # could cache persistent connection now |
396 | my ($cookie, @arg) = split /;\s*/; |
270 | if ($hdr{connection} =~ /\bkeep-alive\b/i) { |
397 | my ($name, $value) = split /=/, $cookie, 2; |
271 | # but we don't, due to misdesigns, this is annoyingly complex |
398 | my %kv = (value => $value, map { split /=/, $_, 2 } @arg); |
|
|
399 | |
|
|
400 | my $cdom = (delete $kv{domain}) || $uhost; |
|
|
401 | my $cpath = (delete $kv{path}) || "/"; |
|
|
402 | |
|
|
403 | $cdom =~ s/^.?/./; # make sure it starts with a "." |
|
|
404 | |
|
|
405 | next if $cdom =~ /\.$/; |
|
|
406 | |
|
|
407 | # this is not rfc-like and not netscape-like. go figure. |
|
|
408 | my $ndots = $cdom =~ y/.//; |
|
|
409 | next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2); |
|
|
410 | |
|
|
411 | # store it |
|
|
412 | $arg{cookie_jar}{version} = 1; |
|
|
413 | $arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv; |
272 | }; |
414 | } |
273 | |
|
|
274 | %state = (); |
|
|
275 | $cb->($_[1], \%hdr); |
|
|
276 | }); |
415 | } |
|
|
416 | |
|
|
417 | if ($_[1]{Status} =~ /^30[12]$/ && $recurse) { |
|
|
418 | # microsoft and other assholes don't give a shit for following standards, |
|
|
419 | # try to support a common form of broken Location header. |
|
|
420 | $_[1]{location} =~ s%^/%$scheme://$uhost:$uport/%; |
|
|
421 | |
|
|
422 | http_request ($method, $_[1]{location}, %arg, recurse => $recurse - 1, $cb); |
|
|
423 | } else { |
|
|
424 | $cb->($_[0], $_[1]); |
|
|
425 | } |
|
|
426 | }; |
|
|
427 | |
|
|
428 | if ($hdr{Status} =~ /^(?:1..|204|304)$/ or $method eq "HEAD") { |
|
|
429 | $finish->(undef, \%hdr); |
277 | } else { |
430 | } else { |
|
|
431 | if (exists $hdr{"content-length"}) { |
|
|
432 | $_[0]->unshift_read (chunk => $hdr{"content-length"}, sub { |
|
|
433 | # could cache persistent connection now |
|
|
434 | if ($hdr{connection} =~ /\bkeep-alive\b/i) { |
|
|
435 | # but we don't, due to misdesigns, this is annoyingly complex |
|
|
436 | }; |
|
|
437 | |
|
|
438 | $finish->($_[1], \%hdr); |
|
|
439 | }); |
|
|
440 | } else { |
278 | # too bad, need to read until we get an error or EOF, |
441 | # too bad, need to read until we get an error or EOF, |
279 | # no way to detect winged data. |
442 | # no way to detect winged data. |
280 | $_[0]->on_error (sub { |
443 | $_[0]->on_error (sub { |
281 | %state = (); |
|
|
282 | $cb->($_[0]{rbuf}, \%hdr); |
444 | $finish->($_[0]{rbuf}, \%hdr); |
283 | }); |
445 | }); |
284 | $_[0]->on_eof (undef); |
446 | $_[0]->on_eof (undef); |
285 | $_[0]->on_read (sub { }); |
447 | $_[0]->on_read (sub { }); |
|
|
448 | } |
286 | } |
449 | } |
287 | } |
450 | }); |
288 | }); |
451 | }); |
|
|
452 | }, sub { |
|
|
453 | $timeout |
289 | }); |
454 | }; |
290 | }, sub { |
|
|
291 | $timeout |
|
|
292 | }; |
455 | }; |
293 | |
456 | |
294 | defined wantarray && AnyEvent::Util::guard { %state = () } |
457 | defined wantarray && AnyEvent::Util::guard { %state = () } |
295 | } |
458 | } |
296 | |
459 | |
297 | sub http_get($$;@) { |
460 | sub http_get($@) { |
298 | unshift @_, "GET"; |
461 | unshift @_, "GET"; |
299 | &http_request |
462 | &http_request |
300 | } |
463 | } |
301 | |
464 | |
302 | sub http_head($$;@) { |
465 | sub http_head($@) { |
303 | unshift @_, "HEAD"; |
466 | unshift @_, "HEAD"; |
304 | &http_request |
467 | &http_request |
305 | } |
468 | } |
306 | |
469 | |
307 | sub http_post($$$;@) { |
470 | sub http_post($$@) { |
308 | unshift @_, "POST", "body"; |
471 | unshift @_, "POST", "body"; |
309 | &http_request |
472 | &http_request |
310 | } |
473 | } |
311 | |
474 | |
|
|
475 | =back |
|
|
476 | |
312 | =head2 GLOBAL FUNCTIONS AND VARIABLES |
477 | =head2 GLOBAL FUNCTIONS AND VARIABLES |
313 | |
478 | |
314 | =over 4 |
479 | =over 4 |
315 | |
480 | |
316 | =item AnyEvent::HTTP::set_proxy "proxy-url" |
481 | =item AnyEvent::HTTP::set_proxy "proxy-url" |
… | |
… | |
337 | |
502 | |
338 | The maximum time to cache a persistent connection, in seconds (default: 2). |
503 | The maximum time to cache a persistent connection, in seconds (default: 2). |
339 | |
504 | |
340 | Not implemented currently. |
505 | Not implemented currently. |
341 | |
506 | |
|
|
507 | =item $AnyEvent::HTTP::ACTIVE |
|
|
508 | |
|
|
509 | The number of active connections. This is not the number of currently |
|
|
510 | running requests, but the number of currently open and non-idle TCP |
|
|
511 | connections. This number of can be useful for load-leveling. |
|
|
512 | |
342 | =back |
513 | =back |
343 | |
514 | |
344 | =cut |
515 | =cut |
345 | |
516 | |
346 | sub set_proxy($) { |
517 | sub set_proxy($) { |
… | |
… | |
354 | |
525 | |
355 | L<AnyEvent>. |
526 | L<AnyEvent>. |
356 | |
527 | |
357 | =head1 AUTHOR |
528 | =head1 AUTHOR |
358 | |
529 | |
359 | Marc Lehmann <schmorp@schmorp.de> |
530 | Marc Lehmann <schmorp@schmorp.de> |
360 | http://home.schmorp.de/ |
531 | http://home.schmorp.de/ |
361 | |
532 | |
362 | =cut |
533 | =cut |
363 | |
534 | |
364 | 1 |
535 | 1 |
365 | |
536 | |