| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef NET_WEBSOCKETS_WEBSOCKET_BASIC_HANDSHAKE_STREAM_H_ |
| #define NET_WEBSOCKETS_WEBSOCKET_BASIC_HANDSHAKE_STREAM_H_ |
| |
| #include <stdint.h> |
| |
| #include <memory> |
| #include <string> |
| #include <vector> |
| |
| #include "base/macros.h" |
| #include "base/memory/ref_counted.h" |
| #include "net/base/net_export.h" |
| #include "net/http/http_basic_state.h" |
| #include "net/websockets/websocket_handshake_stream_base.h" |
| #include "url/gurl.h" |
| |
| namespace net { |
| |
| class ClientSocketHandle; |
| class HttpResponseHeaders; |
| class HttpResponseInfo; |
| class HttpStreamParser; |
| |
| struct WebSocketExtensionParams; |
| class WebSocketStreamRequest; |
| |
| class NET_EXPORT_PRIVATE WebSocketBasicHandshakeStream |
| : public WebSocketHandshakeStreamBase { |
| public: |
| // |connect_delegate| and |failure_message| must out-live this object. |
| WebSocketBasicHandshakeStream( |
| std::unique_ptr<ClientSocketHandle> connection, |
| WebSocketStream::ConnectDelegate* connect_delegate, |
| bool using_proxy, |
| std::vector<std::string> requested_sub_protocols, |
| std::vector<std::string> requested_extensions, |
| WebSocketStreamRequest* request); |
| |
| ~WebSocketBasicHandshakeStream() override; |
| |
| // HttpStreamBase methods |
| int InitializeStream(const HttpRequestInfo* request_info, |
| RequestPriority priority, |
| const NetLogWithSource& net_log, |
| const CompletionCallback& callback) override; |
| int SendRequest(const HttpRequestHeaders& request_headers, |
| HttpResponseInfo* response, |
| const CompletionCallback& callback) override; |
| int ReadResponseHeaders(const CompletionCallback& callback) override; |
| int ReadResponseBody(IOBuffer* buf, |
| int buf_len, |
| const CompletionCallback& callback) override; |
| void Close(bool not_reusable) override; |
| bool IsResponseBodyComplete() const override; |
| bool IsConnectionReused() const override; |
| void SetConnectionReused() override; |
| bool CanReuseConnection() const override; |
| int64_t GetTotalReceivedBytes() const override; |
| int64_t GetTotalSentBytes() const override; |
| bool GetAlternativeService( |
| AlternativeService* alternative_service) const override; |
| bool GetLoadTimingInfo(LoadTimingInfo* load_timing_info) const override; |
| void GetSSLInfo(SSLInfo* ssl_info) override; |
| void GetSSLCertRequestInfo(SSLCertRequestInfo* cert_request_info) override; |
| bool GetRemoteEndpoint(IPEndPoint* endpoint) override; |
| Error GetTokenBindingSignature(crypto::ECPrivateKey* key, |
| TokenBindingType tb_type, |
| std::vector<uint8_t>* out) override; |
| void Drain(HttpNetworkSession* session) override; |
| void SetPriority(RequestPriority priority) override; |
| void PopulateNetErrorDetails(NetErrorDetails* details) override; |
| HttpStream* RenewStreamForAuth() override; |
| |
| |
| // This is called from the top level once correct handshake response headers |
| // have been received. It creates an appropriate subclass of WebSocketStream |
| // depending on what extensions were negotiated. This object is unusable after |
| // Upgrade() has been called and should be disposed of as soon as possible. |
| std::unique_ptr<WebSocketStream> Upgrade() override; |
| |
| // Set the value used for the next Sec-WebSocket-Key header |
| // deterministically. The key is only used once, and then discarded. |
| // For tests only. |
| void SetWebSocketKeyForTesting(const std::string& key); |
| |
| private: |
| // A wrapper for the ReadResponseHeaders callback that checks whether or not |
| // the connection has been accepted. |
| void ReadResponseHeadersCallback(const CompletionCallback& callback, |
| int result); |
| |
| void OnFinishOpeningHandshake(); |
| |
| // Validates the response and sends the finished handshake event. |
| int ValidateResponse(int rv); |
| |
| // Check that the headers are well-formed for a 101 response, and returns |
| // OK if they are, otherwise returns ERR_INVALID_RESPONSE. |
| int ValidateUpgradeResponse(const HttpResponseHeaders* headers); |
| |
| void OnFailure(const std::string& message); |
| |
| HttpStreamParser* parser() const { return state_.parser(); } |
| |
| // The request URL. |
| GURL url_; |
| |
| // HttpBasicState holds most of the handshake-related state. |
| HttpBasicState state_; |
| |
| // Owned by another object. |
| // |connect_delegate| will live during the lifetime of this object. |
| WebSocketStream::ConnectDelegate* connect_delegate_; |
| |
| // This is stored in SendRequest() for use by ReadResponseHeaders(). |
| HttpResponseInfo* http_response_info_; |
| |
| // The key to be sent in the next Sec-WebSocket-Key header. Usually NULL (the |
| // key is generated on the fly). |
| std::unique_ptr<std::string> handshake_challenge_for_testing_; |
| |
| // The required value for the Sec-WebSocket-Accept header. |
| std::string handshake_challenge_response_; |
| |
| // The sub-protocols we requested. |
| std::vector<std::string> requested_sub_protocols_; |
| |
| // The extensions we requested. |
| std::vector<std::string> requested_extensions_; |
| |
| // The sub-protocol selected by the server. |
| std::string sub_protocol_; |
| |
| // The extension(s) selected by the server. |
| std::string extensions_; |
| |
| // The extension parameters. The class is defined in the implementation file |
| // to avoid including extension-related header files here. |
| std::unique_ptr<WebSocketExtensionParams> extension_params_; |
| |
| WebSocketStreamRequest* stream_request_; |
| |
| DISALLOW_COPY_AND_ASSIGN(WebSocketBasicHandshakeStream); |
| }; |
| |
| } // namespace net |
| |
| #endif // NET_WEBSOCKETS_WEBSOCKET_BASIC_HANDSHAKE_STREAM_H_ |