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46 | use AnyEvent::Util (); |
46 | use AnyEvent::Util (); |
47 | use AnyEvent::Handle (); |
47 | use AnyEvent::Handle (); |
48 | |
48 | |
49 | use base Exporter::; |
49 | use base Exporter::; |
50 | |
50 | |
51 | our $VERSION = '2.15'; |
51 | our $VERSION = 2.21; |
52 | |
52 | |
53 | our @EXPORT = qw(http_get http_post http_head http_request); |
53 | our @EXPORT = qw(http_get http_post http_head http_request); |
54 | |
54 | |
55 | our $USERAGENT = "Mozilla/5.0 (compatible; U; AnyEvent-HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)"; |
55 | our $USERAGENT = "Mozilla/5.0 (compatible; U; AnyEvent-HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)"; |
56 | our $MAX_RECURSE = 10; |
56 | our $MAX_RECURSE = 10; |
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156 | |
156 | |
157 | =item recurse => $count (default: $MAX_RECURSE) |
157 | =item recurse => $count (default: $MAX_RECURSE) |
158 | |
158 | |
159 | Whether to recurse requests or not, e.g. on redirects, authentication and |
159 | Whether to recurse requests or not, e.g. on redirects, authentication and |
160 | other retries and so on, and how often to do so. |
160 | other retries and so on, and how often to do so. |
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161 | |
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162 | Only redirects to http and https URLs are supported. While most common |
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163 | redirection forms are handled entirely within this module, some require |
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164 | the use of the optional L<URI> module. If it is required but missing, then |
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165 | the request will fail with an error. |
161 | |
166 | |
162 | =item headers => hashref |
167 | =item headers => hashref |
163 | |
168 | |
164 | The request headers to use. Currently, C<http_request> may provide its own |
169 | The request headers to use. Currently, C<http_request> may provide its own |
165 | C<Host:>, C<Content-Length:>, C<Connection:> and C<Cookie:> headers and |
170 | C<Host:>, C<Content-Length:>, C<Connection:> and C<Cookie:> headers and |
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821 | my $was_persistent; # true if this is actually a recycled connection |
826 | my $was_persistent; # true if this is actually a recycled connection |
822 | |
827 | |
823 | # the key to use in the keepalive cache |
828 | # the key to use in the keepalive cache |
824 | my $ka_key = "$uscheme\x00$uhost\x00$uport\x00$arg{sessionid}"; |
829 | my $ka_key = "$uscheme\x00$uhost\x00$uport\x00$arg{sessionid}"; |
825 | |
830 | |
826 | $hdr{connection} = ($persistent ? $keepalive ? "keep-alive " : "" : "close ") . "Te"; #1.1 |
831 | $hdr{connection} = ($persistent ? $keepalive ? "keep-alive, " : "" : "close, ") . "Te"; #1.1 |
827 | $hdr{te} = "trailers" unless exists $hdr{te}; #1.1 |
832 | $hdr{te} = "trailers" unless exists $hdr{te}; #1.1 |
828 | |
833 | |
829 | my %state = (connect_guard => 1); |
834 | my %state = (connect_guard => 1); |
830 | |
835 | |
831 | my $ae_error = 595; # connecting |
836 | my $ae_error = 595; # connecting |
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841 | # send request |
846 | # send request |
842 | $hdl->push_write ( |
847 | $hdl->push_write ( |
843 | "$method $rpath HTTP/1.1\015\012" |
848 | "$method $rpath HTTP/1.1\015\012" |
844 | . (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr) |
849 | . (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr) |
845 | . "\015\012" |
850 | . "\015\012" |
846 | . (delete $arg{body}) |
851 | . $arg{body} |
847 | ); |
852 | ); |
848 | |
853 | |
849 | # return if error occurred during push_write() |
854 | # return if error occurred during push_write() |
850 | return unless %state; |
855 | return unless %state; |
851 | |
856 | |
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881 | |
886 | |
882 | %hdr = (%$hdr, @pseudo); |
887 | %hdr = (%$hdr, @pseudo); |
883 | } |
888 | } |
884 | |
889 | |
885 | # redirect handling |
890 | # redirect handling |
886 | # microsoft and other shitheads don't give a shit for following standards, |
891 | # relative uri handling forced by microsoft and other shitheads. |
887 | # try to support some common forms of broken Location headers. |
892 | # we give our best and fall back to URI if available. |
888 | if ($hdr{location} !~ /^(?: $ | [^:\/?\#]+ : )/x) { |
893 | if (exists $hdr{location}) { |
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894 | my $loc = $hdr{location}; |
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895 | |
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896 | if ($loc =~ m%^//%) { # // |
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897 | $loc = "$rscheme:$loc"; |
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898 | |
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899 | } elsif ($loc eq "") { |
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900 | $loc = $url; |
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901 | |
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902 | } elsif ($loc !~ /^(?: $ | [^:\/?\#]+ : )/x) { # anything "simple" |
889 | $hdr{location} =~ s/^\.\/+//; |
903 | $loc =~ s/^\.\/+//; |
890 | |
904 | |
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|
905 | if ($loc !~ m%^[.?#]%) { |
891 | my $url = "$rscheme://$uhost:$uport"; |
906 | my $prefix = "$rscheme://$uhost:$uport"; |
892 | |
907 | |
893 | unless ($hdr{location} =~ s/^\///) { |
908 | unless ($loc =~ s/^\///) { |
894 | $url .= $upath; |
909 | $prefix .= $upath; |
895 | $url =~ s/\/[^\/]*$//; |
910 | $prefix =~ s/\/[^\/]*$//; |
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911 | } |
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912 | |
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913 | $loc = "$prefix/$loc"; |
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914 | |
|
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915 | } elsif (eval { require URI }) { # uri |
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916 | $loc = URI->new_abs ($loc, $url)->as_string; |
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917 | |
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918 | } else { |
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919 | return _error %state, $cb, { @pseudo, Status => 599, Reason => "Cannot parse Location (URI module missing)" }; |
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920 | #$hdr{Status} = 599; |
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|
921 | #$hdr{Reason} = "Unparsable Redirect (URI module missing)"; |
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|
922 | #$recurse = 0; |
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|
923 | } |
896 | } |
924 | } |
897 | |
925 | |
898 | $hdr{location} = "$url/$hdr{location}"; |
926 | $hdr{location} = $loc; |
899 | } |
927 | } |
900 | |
928 | |
901 | my $redirect; |
929 | my $redirect; |
902 | |
930 | |
903 | if ($recurse) { |
931 | if ($recurse) { |
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905 | |
933 | |
906 | # industry standard is to redirect POST as GET for |
934 | # industry standard is to redirect POST as GET for |
907 | # 301, 302 and 303, in contrast to HTTP/1.0 and 1.1. |
935 | # 301, 302 and 303, in contrast to HTTP/1.0 and 1.1. |
908 | # also, the UA should ask the user for 301 and 307 and POST, |
936 | # also, the UA should ask the user for 301 and 307 and POST, |
909 | # industry standard seems to be to simply follow. |
937 | # industry standard seems to be to simply follow. |
910 | # we go with the industry standard. |
938 | # we go with the industry standard. 308 is defined |
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939 | # by rfc7538 |
911 | if ($status == 301 or $status == 302 or $status == 303) { |
940 | if ($status == 301 or $status == 302 or $status == 303) { |
912 | # HTTP/1.1 is unclear on how to mutate the method |
941 | # HTTP/1.1 is unclear on how to mutate the method |
913 | $method = "GET" unless $method eq "HEAD"; |
942 | $method = "GET" unless $method eq "HEAD"; |
914 | $redirect = 1; |
943 | $redirect = 1; |
915 | } elsif ($status == 307) { |
944 | } elsif ($status == 307 or $status == 308) { |
916 | $redirect = 1; |
945 | $redirect = 1; |
917 | } |
946 | } |
918 | } |
947 | } |
919 | |
948 | |
920 | my $finish = sub { # ($data, $err_status, $err_reason[, $persistent]) |
949 | my $finish = sub { # ($data, $err_status, $err_reason[, $persistent]) |
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1248 | save cookies to disk, and you should call this function after loading them |
1277 | save cookies to disk, and you should call this function after loading them |
1249 | again. If you have a long-running program you can additionally call this |
1278 | again. If you have a long-running program you can additionally call this |
1250 | function from time to time. |
1279 | function from time to time. |
1251 | |
1280 | |
1252 | A cookie jar is initially an empty hash-reference that is managed by this |
1281 | A cookie jar is initially an empty hash-reference that is managed by this |
1253 | module. It's format is subject to change, but currently it is like this: |
1282 | module. Its format is subject to change, but currently it is as follows: |
1254 | |
1283 | |
1255 | The key C<version> has to contain C<1>, otherwise the hash gets |
1284 | The key C<version> has to contain C<1>, otherwise the hash gets |
1256 | emptied. All other keys are hostnames or IP addresses pointing to |
1285 | emptied. All other keys are hostnames or IP addresses pointing to |
1257 | hash-references. The key for these inner hash references is the |
1286 | hash-references. The key for these inner hash references is the |
1258 | server path for which this cookie is meant, and the values are again |
1287 | server path for which this cookie is meant, and the values are again |
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1303 | C<Mozilla/5.0 (compatible; U; AnyEvent-HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)>). |
1332 | C<Mozilla/5.0 (compatible; U; AnyEvent-HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)>). |
1304 | |
1333 | |
1305 | =item $AnyEvent::HTTP::MAX_PER_HOST |
1334 | =item $AnyEvent::HTTP::MAX_PER_HOST |
1306 | |
1335 | |
1307 | The maximum number of concurrent connections to the same host (identified |
1336 | The maximum number of concurrent connections to the same host (identified |
1308 | by the hostname). If the limit is exceeded, then the additional requests |
1337 | by the hostname). If the limit is exceeded, then additional requests |
1309 | are queued until previous connections are closed. Both persistent and |
1338 | are queued until previous connections are closed. Both persistent and |
1310 | non-persistent connections are counted in this limit. |
1339 | non-persistent connections are counted in this limit. |
1311 | |
1340 | |
1312 | The default value for this is C<4>, and it is highly advisable to not |
1341 | The default value for this is C<4>, and it is highly advisable to not |
1313 | increase it much. |
1342 | increase it much. |