cef/include/capi/cef_server_capi.h

328 lines
15 KiB
C

// Copyright (c) 2020 Marshall A. Greenblatt. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the name Chromium Embedded
// Framework nor the names of its contributors may be used to endorse
// or promote products derived from this software without specific prior
// written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// ---------------------------------------------------------------------------
//
// This file was generated by the CEF translator tool and should not edited
// by hand. See the translator.README.txt file in the tools directory for
// more information.
//
// $hash=ffd489adc301ed88e1f30f8f38cec1730411a4b5$
//
#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_