diff options
Diffstat (limited to 'src/ranch_tcp.erl')
| -rw-r--r-- | src/ranch_tcp.erl | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/ranch_tcp.erl b/src/ranch_tcp.erl index d5517a5..ba77308 100644 --- a/src/ranch_tcp.erl +++ b/src/ranch_tcp.erl @@ -26,6 +26,7 @@ -export([connect/3]). -export([connect/4]). -export([recv/3]). +-export([recv_proxy_header/2]). -export([send/2]). -export([sendfile/2]). -export([sendfile/4]). @@ -131,6 +132,28 @@ connect(Host, Port, Opts, Timeout) when is_integer(Port) -> recv(Socket, Length, Timeout) -> gen_tcp:recv(Socket, Length, Timeout). +-spec recv_proxy_header(inet:socket(), timeout()) + -> {ok, any()} | {error, closed | atom()} | {error, protocol_error, atom()}. +recv_proxy_header(Socket, Timeout) -> + case recv(Socket, 0, Timeout) of + {ok, Data} -> + case ranch_proxy_header:parse(Data) of + {ok, ProxyInfo, <<>>} -> + {ok, ProxyInfo}; + {ok, ProxyInfo, Rest} -> + case gen_tcp:unrecv(Socket, Rest) of + ok -> + {ok, ProxyInfo}; + Error -> + Error + end; + {error, HumanReadable} -> + {error, protocol_error, HumanReadable} + end; + Error -> + Error + end. + -spec send(inet:socket(), iodata()) -> ok | {error, atom()}. send(Socket, Packet) -> gen_tcp:send(Socket, Packet). |