| /** @file |
| |
| A brief file description |
| |
| @section license License |
| |
| Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements. See the NOTICE file |
| distributed with this work for additional information |
| regarding copyright ownership. The ASF licenses this file |
| to you under the Apache License, Version 2.0 (the |
| "License"); you may not use this file except in compliance |
| with the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| */ |
| |
| /**************************************************************************** |
| |
| Http1ClientSession.h |
| |
| Description: |
| |
| ****************************************************************************/ |
| |
| #pragma once |
| |
| //#include "libts.h" |
| #include "P_Net.h" |
| #include "InkAPIInternal.h" |
| #include "HTTP.h" |
| #include "HttpConfig.h" |
| #include "IPAllow.h" |
| #include "ProxyClientSession.h" |
| #include "Http1ClientTransaction.h" |
| |
| #ifdef USE_HTTP_DEBUG_LISTS |
| extern ink_mutex debug_cs_list_mutex; |
| #endif |
| |
| class HttpSM; |
| class HttpServerSession; |
| |
| class Http1ClientSession : public ProxyClientSession |
| { |
| public: |
| typedef ProxyClientSession super; ///< Parent type. |
| Http1ClientSession(); |
| |
| // Implement ProxyClientSession interface. |
| void destroy() override; |
| void free() override; |
| void release_transaction(); |
| |
| void |
| start() override |
| { |
| // Troll for data to get a new transaction |
| this->release(&trans); |
| } |
| |
| void new_connection(NetVConnection *new_vc, MIOBuffer *iobuf, IOBufferReader *reader, bool backdoor) override; |
| |
| // Implement VConnection interface. |
| VIO *do_io_read(Continuation *c, int64_t nbytes = INT64_MAX, MIOBuffer *buf = nullptr) override; |
| VIO *do_io_write(Continuation *c = nullptr, int64_t nbytes = INT64_MAX, IOBufferReader *buf = nullptr, |
| bool owner = false) override; |
| |
| void do_io_close(int lerrno = -1) override; |
| void do_io_shutdown(ShutdownHowTo_t howto) override; |
| void reenable(VIO *vio) override; |
| |
| bool |
| allow_half_open() |
| { |
| // Only allow half open connections if the not over TLS |
| return (client_vc && dynamic_cast<SSLNetVConnection *>(client_vc) == nullptr); |
| } |
| |
| void |
| set_half_close_flag(bool flag) override |
| { |
| half_close = flag; |
| } |
| |
| bool |
| get_half_close_flag() const override |
| { |
| return half_close; |
| } |
| |
| bool |
| is_chunked_encoding_supported() const override |
| { |
| return true; |
| } |
| |
| NetVConnection * |
| get_netvc() const override |
| { |
| return client_vc; |
| } |
| |
| int |
| get_transact_count() const override |
| { |
| return transact_count; |
| } |
| |
| virtual bool |
| is_outbound_transparent() const |
| { |
| return f_outbound_transparent; |
| } |
| |
| // Indicate we are done with a transaction |
| void release(ProxyClientTransaction *trans) override; |
| |
| bool attach_server_session(HttpServerSession *ssession, bool transaction_done = true) override; |
| |
| HttpServerSession * |
| get_server_session() const override |
| { |
| return bound_ss; |
| } |
| |
| void |
| set_active_timeout(ink_hrtime timeout_in) override |
| { |
| if (client_vc) |
| client_vc->set_active_timeout(timeout_in); |
| } |
| |
| void |
| set_inactivity_timeout(ink_hrtime timeout_in) override |
| { |
| if (client_vc) |
| client_vc->set_inactivity_timeout(timeout_in); |
| } |
| |
| void |
| cancel_inactivity_timeout() override |
| { |
| if (client_vc) |
| client_vc->cancel_inactivity_timeout(); |
| } |
| |
| const char * |
| get_protocol_string() const override |
| { |
| return "http"; |
| } |
| |
| bool |
| is_transparent_passthrough_allowed() const override |
| { |
| return f_transparent_passthrough; |
| } |
| |
| void increment_current_active_client_connections_stat() override; |
| void decrement_current_active_client_connections_stat() override; |
| |
| private: |
| Http1ClientSession(Http1ClientSession &); |
| |
| void new_transaction(); |
| |
| int state_keep_alive(int event, void *data); |
| int state_slave_keep_alive(int event, void *data); |
| int state_wait_for_close(int event, void *data); |
| void set_tcp_init_cwnd(); |
| |
| enum C_Read_State { |
| HCS_INIT, |
| HCS_ACTIVE_READER, |
| HCS_KEEP_ALIVE, |
| HCS_HALF_CLOSED, |
| HCS_CLOSED, |
| }; |
| |
| NetVConnection *client_vc; |
| int magic; |
| int transact_count; |
| bool tcp_init_cwnd_set; |
| bool half_close; |
| bool conn_decrease; |
| |
| MIOBuffer *read_buffer; |
| IOBufferReader *sm_reader; |
| |
| C_Read_State read_state; |
| |
| VIO *ka_vio; |
| VIO *slave_ka_vio; |
| |
| HttpServerSession *bound_ss; |
| |
| int released_transactions; |
| |
| public: |
| // Link<Http1ClientSession> debug_link; |
| LINK(Http1ClientSession, debug_link); |
| |
| /// Set outbound connection to transparent. |
| bool f_outbound_transparent; |
| /// Transparently pass-through non-HTTP traffic. |
| bool f_transparent_passthrough; |
| |
| Http1ClientTransaction trans; |
| }; |
| |
| extern ClassAllocator<Http1ClientSession> http1ClientSessionAllocator; |