// Copyright (c) 2022 Marshall A. Greenblatt. 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See the translator.README.txt file in the tools directory for // more information. // // $hash=72c2b4f976016cea50e54a386c09a786973c01a3$ // #ifndef CEF_INCLUDE_CAPI_CEF_SERVER_CAPI_H_ #define CEF_INCLUDE_CAPI_CEF_SERVER_CAPI_H_ #pragma once #include "include/capi/cef_base_capi.h" #include "include/capi/cef_callback_capi.h" #include "include/capi/cef_request_capi.h" #include "include/capi/cef_task_capi.h" #ifdef __cplusplus extern "C" { #endif struct _cef_server_handler_t; /// // Structure representing a server that supports HTTP and WebSocket requests. // Server capacity is limited and is intended to handle only a small number of // simultaneous connections (e.g. for communicating between applications on // localhost). The functions of this structure are safe to call from any thread // in the brower process unless otherwise indicated. /// typedef struct _cef_server_t { /// // Base structure. /// cef_base_ref_counted_t base; /// // Returns the task runner for the dedicated server thread. /// struct _cef_task_runner_t*(CEF_CALLBACK* get_task_runner)( struct _cef_server_t* self); /// // Stop the server and shut down the dedicated server thread. See // cef_server_handler_t::OnServerCreated documentation for a description of // server lifespan. /// void(CEF_CALLBACK* shutdown)(struct _cef_server_t* self); /// // Returns true (1) if the server is currently running and accepting incoming // connections. See cef_server_handler_t::OnServerCreated documentation for a // description of server lifespan. This function must be called on the // dedicated server thread. /// int(CEF_CALLBACK* is_running)(struct _cef_server_t* self); /// // Returns the server address including the port number. /// // The resulting string must be freed by calling cef_string_userfree_free(). cef_string_userfree_t(CEF_CALLBACK* get_address)(struct _cef_server_t* self); /// // Returns true (1) if the server currently has a connection. This function // must be called on the dedicated server thread. /// int(CEF_CALLBACK* has_connection)(struct _cef_server_t* self); /// // Returns true (1) if |connection_id| represents a valid connection. This // function must be called on the dedicated server thread. /// int(CEF_CALLBACK* is_valid_connection)(struct _cef_server_t* self, int connection_id); /// // Send an HTTP 200 "OK" response to the connection identified by // |connection_id|. |content_type| is the response content type (e.g. // "text/html"), |data| is the response content, and |data_size| is the size // of |data| in bytes. The contents of |data| will be copied. The connection // will be closed automatically after the response is sent. /// void(CEF_CALLBACK* send_http200response)(struct _cef_server_t* self, int connection_id, const cef_string_t* content_type, const void* data, size_t data_size); /// // Send an HTTP 404 "Not Found" response to the connection identified by // |connection_id|. The connection will be closed automatically after the // response is sent. /// void(CEF_CALLBACK* send_http404response)(struct _cef_server_t* self, int connection_id); /// // Send an HTTP 500 "Internal Server Error" response to the connection // identified by |connection_id|. |error_message| is the associated error // message. The connection will be closed automatically after the response is // sent. /// void(CEF_CALLBACK* send_http500response)(struct _cef_server_t* self, int connection_id, const cef_string_t* error_message); /// // Send a custom HTTP response to the connection identified by // |connection_id|. |response_code| is the HTTP response code sent in the // status line (e.g. 200), |content_type| is the response content type sent as // the "Content-Type" header (e.g. "text/html"), |content_length| is the // expected content length, and |extra_headers| is the map of extra response // headers. If |content_length| is >= 0 then the "Content-Length" header will // be sent. If |content_length| is 0 then no content is expected and the // connection will be closed automatically after the response is sent. If // |content_length| is < 0 then no "Content-Length" header will be sent and // the client will continue reading until the connection is closed. Use the // SendRawData function to send the content, if applicable, and call // CloseConnection after all content has been sent. /// void(CEF_CALLBACK* send_http_response)(struct _cef_server_t* self, int connection_id, int response_code, const cef_string_t* content_type, int64 content_length, cef_string_multimap_t extra_headers); /// // Send raw data directly to the connection identified by |connection_id|. // |data| is the raw data and |data_size| is the size of |data| in bytes. The // contents of |data| will be copied. No validation of |data| is performed // internally so the client should be careful to send the amount indicated by // the "Content-Length" header, if specified. See SendHttpResponse // documentation for intended usage. /// void(CEF_CALLBACK* send_raw_data)(struct _cef_server_t* self, int connection_id, const void* data, size_t data_size); /// // Close the connection identified by |connection_id|. See SendHttpResponse // documentation for intended usage. /// void(CEF_CALLBACK* close_connection)(struct _cef_server_t* self, int connection_id); /// // Send a WebSocket message to the connection identified by |connection_id|. // |data| is the response content and |data_size| is the size of |data| in // bytes. The contents of |data| will be copied. See // cef_server_handler_t::OnWebSocketRequest documentation for intended usage. /// void(CEF_CALLBACK* send_web_socket_message)(struct _cef_server_t* self, int connection_id, const void* data, size_t data_size); } cef_server_t; /// // Create a new server that binds to |address| and |port|. |address| must be a // valid IPv4 or IPv6 address (e.g. 127.0.0.1 or ::1) and |port| must be a port // number outside of the reserved range (e.g. between 1025 and 65535 on most // platforms). |backlog| is the maximum number of pending connections. A new // thread will be created for each CreateServer call (the "dedicated server // thread"). It is therefore recommended to use a different cef_server_handler_t // instance for each CreateServer call to avoid thread safety issues in the // cef_server_handler_t implementation. The // cef_server_handler_t::OnServerCreated function will be called on the // dedicated server thread to report success or failure. See // cef_server_handler_t::OnServerCreated documentation for a description of // server lifespan. /// CEF_EXPORT void cef_server_create(const cef_string_t* address, uint16 port, int backlog, struct _cef_server_handler_t* handler); /// // Implement this structure to handle HTTP server requests. A new thread will be // created for each cef_server_t::CreateServer call (the "dedicated server // thread"), and the functions of this structure will be called on that thread. // It is therefore recommended to use a different cef_server_handler_t instance // for each cef_server_t::CreateServer call to avoid thread safety issues in the // cef_server_handler_t implementation. /// typedef struct _cef_server_handler_t { /// // Base structure. /// cef_base_ref_counted_t base; /// // Called when |server| is created. If the server was started successfully // then cef_server_t::IsRunning will return true (1). The server will continue // running until cef_server_t::Shutdown is called, after which time // OnServerDestroyed will be called. If the server failed to start then // OnServerDestroyed will be called immediately after this function returns. /// void(CEF_CALLBACK* on_server_created)(struct _cef_server_handler_t* self, struct _cef_server_t* server); /// // Called when |server| is destroyed. The server thread will be stopped after // this function returns. The client should release any references to |server| // when this function is called. See OnServerCreated documentation for a // description of server lifespan. /// void(CEF_CALLBACK* on_server_destroyed)(struct _cef_server_handler_t* self, struct _cef_server_t* server); /// // Called when a client connects to |server|. |connection_id| uniquely // identifies the connection. Each call to this function will have a matching // call to OnClientDisconnected. /// void(CEF_CALLBACK* on_client_connected)(struct _cef_server_handler_t* self, struct _cef_server_t* server, int connection_id); /// // Called when a client disconnects from |server|. |connection_id| uniquely // identifies the connection. The client should release any data associated // with |connection_id| when this function is called and |connection_id| // should no longer be passed to cef_server_t functions. Disconnects can // originate from either the client or the server. For example, the server // will disconnect automatically after a cef_server_t::SendHttpXXXResponse // function is called. /// void(CEF_CALLBACK* on_client_disconnected)(struct _cef_server_handler_t* self, struct _cef_server_t* server, int connection_id); /// // Called when |server| receives an HTTP request. |connection_id| uniquely // identifies the connection, |client_address| is the requesting IPv4 or IPv6 // client address including port number, and |request| contains the request // contents (URL, function, headers and optional POST data). Call cef_server_t // functions either synchronously or asynchronusly to send a response. /// void(CEF_CALLBACK* on_http_request)(struct _cef_server_handler_t* self, struct _cef_server_t* server, int connection_id, const cef_string_t* client_address, struct _cef_request_t* request); /// // Called when |server| receives a WebSocket request. |connection_id| uniquely // identifies the connection, |client_address| is the requesting IPv4 or IPv6 // client address including port number, and |request| contains the request // contents (URL, function, headers and optional POST data). Execute // |callback| either synchronously or asynchronously to accept or decline the // WebSocket connection. If the request is accepted then OnWebSocketConnected // will be called after the WebSocket has connected and incoming messages will // be delivered to the OnWebSocketMessage callback. If the request is declined // then the client will be disconnected and OnClientDisconnected will be // called. Call the cef_server_t::SendWebSocketMessage function after // receiving the OnWebSocketConnected callback to respond with WebSocket // messages. /// void(CEF_CALLBACK* on_web_socket_request)(struct _cef_server_handler_t* self, struct _cef_server_t* server, int connection_id, const cef_string_t* client_address, struct _cef_request_t* request, struct _cef_callback_t* callback); /// // Called after the client has accepted the WebSocket connection for |server| // and |connection_id| via the OnWebSocketRequest callback. See // OnWebSocketRequest documentation for intended usage. /// void(CEF_CALLBACK* on_web_socket_connected)( struct _cef_server_handler_t* self, struct _cef_server_t* server, int connection_id); /// // Called when |server| receives an WebSocket message. |connection_id| // uniquely identifies the connection, |data| is the message content and // |data_size| is the size of |data| in bytes. Do not keep a reference to // |data| outside of this function. See OnWebSocketRequest documentation for // intended usage. /// void(CEF_CALLBACK* on_web_socket_message)(struct _cef_server_handler_t* self, struct _cef_server_t* server, int connection_id, const void* data, size_t data_size); } cef_server_handler_t; #ifdef __cplusplus } #endif #endif // CEF_INCLUDE_CAPI_CEF_SERVER_CAPI_H_