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/*
* evd-websocket-common.h
*
* EventDance, Peer-to-peer IPC library <http://eventdance.org>
*
* Copyright (C) 2012, Igalia S.L.
*
* Authors:
* Eduardo Lima Mitev <elima@igalia.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* version 3, or (at your option) any later version as published by
* the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License at http://www.gnu.org/licenses/lgpl-3.0.txt
* for more details.
*/
#ifndef __EVD_WEBSOCKET_COMMON_H__
#define __EVD_WEBSOCKET_COMMON_H__
#include <glib.h>
#include <gio/gio.h>
#include <evd-web-service.h>
#include <evd-http-connection.h>
#include <evd-http-request.h>
#include <evd-peer.h>
G_BEGIN_DECLS
#define EVD_WEBSOCKET_DATA_KEY "org.eventdance.lib.Websocket.CONN_DATA"
#define EVD_WEBSOCKET_MAX_PAYLOAD_SIZE 0x40000000
typedef void (* EvdWebsocketFrameCb) (EvdHttpConnection *conn,
const gchar *frame,
gsize frame_length,
gboolean is_binary,
gpointer user_data);
typedef void (* EvdWebsocketCloseCb) (EvdHttpConnection *conn,
gboolean gracefully,
gpointer user_data);
typedef struct _EvdWebsocketData EvdWebsocketData;
typedef gboolean (* EvdWebsocketProcessDataFunc) (EvdWebsocketData *data);
typedef gboolean (* EvdWebsocketSendCloseFrameFunc) (EvdWebsocketData *data,
guint16 code,
const gchar *reason,
GError **error);
typedef gboolean (* EvdWebsocketSendDataFrameFunc) (EvdWebsocketData *data,
const gchar *frame,
gsize frame_len,
EvdMessageType frame_type,
GError **error);
typedef enum
{
/* common states */
EVD_WEBSOCKET_STATE_IDLE,
EVD_WEBSOCKET_STATE_CLOSING,
EVD_WEBSOCKET_STATE_CLOSED,
EVD_WEBSOCKET_STATE_READING_PAYLOAD_LEN,
/* version 00 specific */
EVD_WEBSOCKET_STATE_READING_BINARY_FRAME,
EVD_WEBSOCKET_STATE_READING_TEXT_FRAME,
/* version 08 specific */
EVD_WEBSOCKET_STATE_READING_HEADER,
EVD_WEBSOCKET_STATE_READING_MASKING_KEY,
EVD_WEBSOCKET_STATE_READING_PAYLOAD,
/* padding for future expansion */
EVD_WEBSOCKET_STATE_PADDING0,
EVD_WEBSOCKET_STATE_PADDING1,
EVD_WEBSOCKET_STATE_PADDING2,
EVD_WEBSOCKET_STATE_PADDING3,
EVD_WEBSOCKET_STATE_PADDING4,
EVD_WEBSOCKET_STATE_PADDING5,
EVD_WEBSOCKET_STATE_PADDING6,
EVD_WEBSOCKET_STATE_PADDING7
} EvdWebsocketStates;
struct _EvdWebsocketData
{
gint ref_count;
guint version;
gboolean server;
EvdHttpConnection *conn;
EvdWebsocketFrameCb frame_cb;
EvdWebsocketCloseCb close_cb;
EvdWebsocketProcessDataFunc process_data_func;
EvdWebsocketSendCloseFrameFunc send_close_frame_func;
EvdWebsocketSendDataFrameFunc send_data_frame_func;
gpointer user_data;
GDestroyNotify user_data_destroy_notify;
guint8 state;
GString *buf;
gsize buf_len;
gsize offset;
guint8 opcode;
gsize payload_len;
gchar *frame_data;
gsize frame_len;
gboolean close_frame_sent;
gboolean fin;
gboolean masked;
guint8 masking_key[4];
gchar *extensions_data;
gsize extension_len;
};
void evd_websocket_common_handle_handshake_request (EvdWebService *web_service,
EvdHttpConnection *conn,
EvdHttpRequest *request,
GAsyncReadyCallback callback,
gpointer user_data);
gboolean evd_websocket_common_handle_handshake_request_finish (GAsyncResult *result,
GError **error);
void evd_websocket_common_setup_connection (EvdHttpConnection *conn,
guint8 version,
gboolean is_server,
EvdWebsocketProcessDataFunc process_data_func,
EvdWebsocketSendCloseFrameFunc send_close_frame_func,
EvdWebsocketSendDataFrameFunc send_data_frame_func);
void evd_websocket_common_bind (EvdHttpConnection *conn,
EvdWebsocketFrameCb frame_cb,
EvdWebsocketCloseCb close_cb,
gpointer user_data,
GDestroyNotify user_data_destroy_notify);
gboolean evd_websocket_common_is_bound (EvdHttpConnection *conn);
gboolean evd_websocket_common_close (EvdHttpConnection *conn,
guint16 code,
const gchar *reason,
GError **error);
gboolean evd_websocket_common_send (EvdHttpConnection *conn,
const gchar *frame,
gsize frame_len,
EvdMessageType frame_type,
GError **error);
G_END_DECLS
#endif /* __EVD_WEBSOCKET_COMMON_H__ */
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