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Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.102 by root, Sat Feb 19 06:46:14 2011 UTC vs.
Revision 1.111 by root, Sun Apr 22 12:58:38 2012 UTC

… …
46use AnyEvent::Util (); 46use AnyEvent::Util ();
47use AnyEvent::Handle (); 47use AnyEvent::Handle ();
48 48
49use base Exporter::; 49use base Exporter::;
50 50
51our $VERSION = '2.04'; 51our $VERSION = '2.14';
52 52
53our @EXPORT = qw(http_get http_post http_head http_request); 53our @EXPORT = qw(http_get http_post http_head http_request);
54 54
55our $USERAGENT = "Mozilla/5.0 (compatible; U; AnyEvent-HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)"; 55our $USERAGENT = "Mozilla/5.0 (compatible; U; AnyEvent-HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)";
56our $MAX_RECURSE = 10; 56our $MAX_RECURSE = 10;
… …
169 169
170You really should provide your own C<User-Agent:> header value that is 170You really should provide your own C<User-Agent:> header value that is
171appropriate for your program - I wouldn't be surprised if the default 171appropriate for your program - I wouldn't be surprised if the default
172AnyEvent string gets blocked by webservers sooner or later. 172AnyEvent string gets blocked by webservers sooner or later.
173 173
174Also, make sure that your headers names and values do not contain any
175embedded newlines.
176
174=item timeout => $seconds 177=item timeout => $seconds
175 178
176The time-out to use for various stages - each connect attempt will reset 179The time-out to use for various stages - each connect attempt will reset
177the timeout, as will read or write activity, i.e. this is not an overall 180the timeout, as will read or write activity, i.e. this is not an overall
178timeout. 181timeout.
… …
381 384
382Example: do a HTTP HEAD request on https://www.google.com/, use a 385Example: do a HTTP HEAD request on https://www.google.com/, use a
383timeout of 30 seconds. 386timeout of 30 seconds.
384 387
385 http_request 388 http_request
386 GET => "https://www.google.com", 389 HEAD => "https://www.google.com",
387 headers => { "user-agent" => "MySearchClient 1.0" }, 390 headers => { "user-agent" => "MySearchClient 1.0" },
388 timeout => 30, 391 timeout => 30,
389 sub { 392 sub {
390 my ($body, $hdr) = @_; 393 my ($body, $hdr) = @_;
391 use Data::Dumper; 394 use Data::Dumper;
… …
773 if length $arg{body} || $method ne "GET"; 776 if length $arg{body} || $method ne "GET";
774 777
775 my $idempotent = $method =~ /^(?:GET|HEAD|PUT|DELETE|OPTIONS|TRACE)$/; 778 my $idempotent = $method =~ /^(?:GET|HEAD|PUT|DELETE|OPTIONS|TRACE)$/;
776 779
777 # default value for keepalive is true iff the request is for an idempotent method 780 # default value for keepalive is true iff the request is for an idempotent method
778 my $keepalive = exists $arg{keepalive} ? !!$arg{keepalive} : $idempotent; 781 my $persistent = exists $arg{persistent} ? !!$arg{persistent} : $idempotent;
779 my $keepalive10 = exists $arg{keepalive10} ? $arg{keepalive10} : !$proxy; 782 my $keepalive = exists $arg{keepalive} ? !!$arg{keepalive} : !$proxy;
780 my $keptalive; # true if this is actually a recycled connection 783 my $was_persistent; # true if this is actually a recycled connection
781 784
782 # the key to use in the keepalive cache 785 # the key to use in the keepalive cache
783 my $ka_key = "$uhost\x00$arg{sessionid}"; 786 my $ka_key = "$uscheme\x00$uhost\x00$uport\x00$arg{sessionid}";
784 787
785 $hdr{connection} = ($keepalive ? $keepalive10 ? "keep-alive " : "" : "close ") . "Te"; #1.1 788 $hdr{connection} = ($persistent ? $keepalive ? "keep-alive " : "" : "close ") . "Te"; #1.1
786 $hdr{te} = "trailers" unless exists $hdr{te}; #1.1 789 $hdr{te} = "trailers" unless exists $hdr{te}; #1.1
787 790
788 my %state = (connect_guard => 1); 791 my %state = (connect_guard => 1);
789 792
790 my $ae_error = 595; # connecting 793 my $ae_error = 595; # connecting
… …
874 } elsif ($status == 307) { 877 } elsif ($status == 307) {
875 $redirect = 1; 878 $redirect = 1;
876 } 879 }
877 } 880 }
878 881
879 my $finish = sub { # ($data, $err_status, $err_reason[, $keepalive]) 882 my $finish = sub { # ($data, $err_status, $err_reason[, $persistent])
880 if ($state{handle}) { 883 if ($state{handle}) {
881 # handle keepalive 884 # handle keepalive
882 if ( 885 if (
883 $keepalive 886 $persistent
884 && $_[3] 887 && $_[3]
885 && ($hdr{HTTPVersion} < 1.1 888 && ($hdr{HTTPVersion} < 1.1
886 ? $hdr{connection} =~ /\bkeep-?alive\b/i 889 ? $hdr{connection} =~ /\bkeep-?alive\b/i
887 : $hdr{connection} !~ /\bclose\b/i) 890 : $hdr{connection} !~ /\bclose\b/i)
888 ) { 891 ) {
… …
907 910
908 if ($redirect && exists $hdr{location}) { 911 if ($redirect && exists $hdr{location}) {
909 # we ignore any errors, as it is very common to receive 912 # we ignore any errors, as it is very common to receive
910 # Content-Length != 0 but no actual body 913 # Content-Length != 0 but no actual body
911 # we also access %hdr, as $_[1] might be an erro 914 # we also access %hdr, as $_[1] might be an erro
915 $state{recurse} =
912 http_request ( 916 http_request (
913 $method => $hdr{location}, 917 $method => $hdr{location},
914 %arg, 918 %arg,
915 recurse => $recurse - 1, 919 recurse => $recurse - 1,
916 Redirect => [$_[0], \%hdr], 920 Redirect => [$_[0], \%hdr],
921 sub {
922 %state = ();
917 $cb 923 &$cb
924 },
918 ); 925 );
919 } else { 926 } else {
920 $cb->($_[0], \%hdr); 927 $cb->($_[0], \%hdr);
921 } 928 }
922 }; 929 };
923 930
… …
955 my $body = ""; 962 my $body = "";
956 my $on_body = $arg{on_body} || sub { $body .= shift; 1 }; 963 my $on_body = $arg{on_body} || sub { $body .= shift; 1 };
957 964
958 $state{read_chunk} = sub { 965 $state{read_chunk} = sub {
959 $_[1] =~ /^([0-9a-fA-F]+)/ 966 $_[1] =~ /^([0-9a-fA-F]+)/
960 or $finish->(undef, $ae_error => "Garbled chunked transfer encoding"); 967 or return $finish->(undef, $ae_error => "Garbled chunked transfer encoding");
961 968
962 my $len = hex $1; 969 my $len = hex $1;
963 970
964 if ($len) { 971 if ($len) {
965 $cl += $len; 972 $cl += $len;
… …
1035 } 1042 }
1036 }; 1043 };
1037 1044
1038 # if keepalive is enabled, then the server closing the connection 1045 # if keepalive is enabled, then the server closing the connection
1039 # before a response can happen legally - we retry on idempotent methods. 1046 # before a response can happen legally - we retry on idempotent methods.
1040 if ($keptalive && $idempotent) { 1047 if ($was_persistent && $idempotent) {
1041 my $old_eof = $hdl->{on_eof}; 1048 my $old_eof = $hdl->{on_eof};
1042 $hdl->{on_eof} = sub { 1049 $hdl->{on_eof} = sub {
1043 _destroy_state %state; 1050 _destroy_state %state;
1044 1051
1052 %state = ();
1053 $state{recurse} =
1045 http_request ( 1054 http_request (
1046 $method => $url, 1055 $method => $url,
1047 %arg, 1056 %arg,
1048 keepalive => 0, 1057 keepalive => 0,
1058 sub {
1059 %state = ();
1049 $cb 1060 &$cb
1061 }
1050 ); 1062 );
1051 }; 1063 };
1052 $hdl->on_read (sub { 1064 $hdl->on_read (sub {
1053 return unless %state; 1065 return unless %state;
1054 1066
1055 # as soon as we receive something, a connection close 1067 # as soon as we receive something, a connection close
… …
1063 }; 1075 };
1064 1076
1065 my $prepare_handle = sub { 1077 my $prepare_handle = sub {
1066 my ($hdl) = $state{handle}; 1078 my ($hdl) = $state{handle};
1067 1079
1068 $hdl->timeout ($timeout);
1069 $hdl->on_error (sub { 1080 $hdl->on_error (sub {
1070 _error %state, $cb, { @pseudo, Status => $ae_error, Reason => $_[2] }; 1081 _error %state, $cb, { @pseudo, Status => $ae_error, Reason => $_[2] };
1071 }); 1082 });
1072 $hdl->on_eof (sub { 1083 $hdl->on_eof (sub {
1073 _error %state, $cb, { @pseudo, Status => $ae_error, Reason => "Unexpected end-of-file" }; 1084 _error %state, $cb, { @pseudo, Status => $ae_error, Reason => "Unexpected end-of-file" };
1074 }); 1085 });
1086 $hdl->timeout_reset;
1087 $hdl->timeout ($timeout);
1075 }; 1088 };
1076 1089
1077 # connected to proxy (or origin server) 1090 # connected to proxy (or origin server)
1078 my $connect_cb = sub { 1091 my $connect_cb = sub {
1079 my $fh = shift 1092 my $fh = shift
… …
1120 1133
1121 return unless $state{connect_guard}; 1134 return unless $state{connect_guard};
1122 1135
1123 # try to use an existing keepalive connection, but only if we, ourselves, plan 1136 # try to use an existing keepalive connection, but only if we, ourselves, plan
1124 # on a keepalive request (in theory, this should be a separate config option). 1137 # on a keepalive request (in theory, this should be a separate config option).
1125 if ($keepalive && $KA_CACHE{$ka_key}) { 1138 if ($persistent && $KA_CACHE{$ka_key}) {
1126 $keptalive = 1; 1139 $was_persistent = 1;
1140
1127 $state{handle} = ka_fetch $ka_key; 1141 $state{handle} = ka_fetch $ka_key;
1142 $state{handle}->destroyed
1143 and die "AnyEvent::HTTP: unexpectedly got a destructed handle (1), please report.";#d#
1128 $prepare_handle->(); 1144 $prepare_handle->();
1145 $state{handle}->destroyed
1146 and die "AnyEvent::HTTP: unexpectedly got a destructed handle (2), please report.";#d#
1129 $handle_actual_request->(); 1147 $handle_actual_request->();
1130 1148
1131 } else { 1149 } else {
1132 my $tcp_connect = $arg{tcp_connect} 1150 my $tcp_connect = $arg{tcp_connect}
1133 || do { require AnyEvent::Socket; \&AnyEvent::Socket::tcp_connect }; 1151 || do { require AnyEvent::Socket; \&AnyEvent::Socket::tcp_connect };
… …
1235 1253
1236The default value for the C<recurse> request parameter (default: C<10>). 1254The default value for the C<recurse> request parameter (default: C<10>).
1237 1255
1238=item $AnyEvent::HTTP::TIMEOUT 1256=item $AnyEvent::HTTP::TIMEOUT
1239 1257
1240The default timeout for conenction operations (default: C<300>). 1258The default timeout for connection operations (default: C<300>).
1241 1259
1242=item $AnyEvent::HTTP::USERAGENT 1260=item $AnyEvent::HTTP::USERAGENT
1243 1261
1244The default value for the C<User-Agent> header (the default is 1262The default value for the C<User-Agent> header (the default is
1245C<Mozilla/5.0 (compatible; U; AnyEvent-HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)>). 1263C<Mozilla/5.0 (compatible; U; AnyEvent-HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)>).
… …
1310 # other formats fail in the loop below 1328 # other formats fail in the loop below
1311 1329
1312 for (0..11) { 1330 for (0..11) {
1313 if ($m eq $month[$_]) { 1331 if ($m eq $month[$_]) {
1314 require Time::Local; 1332 require Time::Local;
1315 return Time::Local::timegm ($S, $M, $H, $d, $_, $y); 1333 return eval { Time::Local::timegm ($S, $M, $H, $d, $_, $y) };
1316 } 1334 }
1317 } 1335 }
1318 1336
1319 undef 1337 undef
1320} 1338}
… …
1366 1384
1367 warn stat $fh; 1385 warn stat $fh;
1368 warn -s _; 1386 warn -s _;
1369 if (stat $fh and -s _) { 1387 if (stat $fh and -s _) {
1370 $ofs = -s _; 1388 $ofs = -s _;
1371 warn "-s is ", $ofs;#d# 1389 warn "-s is ", $ofs;
1372 $hdr{"if-unmodified-since"} = AnyEvent::HTTP::format_date +(stat _)[9]; 1390 $hdr{"if-unmodified-since"} = AnyEvent::HTTP::format_date +(stat _)[9];
1373 $hdr{"range"} = "bytes=$ofs-"; 1391 $hdr{"range"} = "bytes=$ofs-";
1374 } 1392 }
1375 1393
1376 http_get $url, 1394 http_get $url,

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