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0001 // 0002 // Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com) 0003 // 0004 // Distributed under the Boost Software License, Version 1.0. (See accompanying 0005 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 0006 // 0007 // Official repository: https://github.com/boostorg/beast 0008 // 0009 0010 #ifndef BOOST_BEAST_WEBSOCKET_ERROR_HPP 0011 #define BOOST_BEAST_WEBSOCKET_ERROR_HPP 0012 0013 #include <boost/beast/core/detail/config.hpp> 0014 #include <boost/beast/core/error.hpp> 0015 0016 namespace boost { 0017 namespace beast { 0018 namespace websocket { 0019 0020 /// Error codes returned from @ref boost::beast::websocket::stream operations. 0021 enum class error 0022 { 0023 /** The WebSocket stream was gracefully closed at both endpoints 0024 */ 0025 closed = 1, 0026 0027 /* The error codes error::failed and error::handshake_failed 0028 are no longer in use. Please change your code to compare values 0029 of type error_code against condition::handshake_failed 0030 and condition::protocol_violation instead. 0031 0032 Apologies for the inconvenience. 0033 0034 - VFALCO 0035 */ 0036 #if ! BOOST_BEAST_DOXYGEN 0037 unused1 = 2, // failed 0038 unused2 = 3, // handshake_failed 0039 #endif 0040 0041 /** The WebSocket operation caused a dynamic buffer overflow 0042 */ 0043 buffer_overflow, 0044 0045 /** The WebSocket stream produced an incomplete deflate block 0046 */ 0047 partial_deflate_block, 0048 0049 /** The WebSocket message exceeded the locally configured limit 0050 */ 0051 message_too_big, 0052 0053 // 0054 // Handshake failure errors 0055 // 0056 // These will compare equal to condition::handshake_failed 0057 // 0058 0059 /** The WebSocket handshake was not HTTP/1.1 0060 0061 Error codes with this value will compare equal to @ref condition::handshake_failed 0062 */ 0063 bad_http_version, 0064 0065 /** The WebSocket handshake method was not GET 0066 0067 Error codes with this value will compare equal to @ref condition::handshake_failed 0068 */ 0069 bad_method, 0070 0071 /** The WebSocket handshake Host field is missing 0072 0073 Error codes with this value will compare equal to @ref condition::handshake_failed 0074 */ 0075 no_host, 0076 0077 /** The WebSocket handshake Connection field is missing 0078 0079 Error codes with this value will compare equal to @ref condition::handshake_failed 0080 */ 0081 no_connection, 0082 0083 /** The WebSocket handshake Connection field is missing the upgrade token 0084 0085 Error codes with this value will compare equal to @ref condition::handshake_failed 0086 */ 0087 no_connection_upgrade, 0088 0089 /** The WebSocket handshake Upgrade field is missing 0090 0091 Error codes with this value will compare equal to @ref condition::handshake_failed 0092 */ 0093 no_upgrade, 0094 0095 /** The WebSocket handshake Upgrade field is missing the websocket token 0096 0097 Error codes with this value will compare equal to @ref condition::handshake_failed 0098 */ 0099 no_upgrade_websocket, 0100 0101 /** The WebSocket handshake Sec-WebSocket-Key field is missing 0102 0103 Error codes with this value will compare equal to @ref condition::handshake_failed 0104 */ 0105 no_sec_key, 0106 0107 /** The WebSocket handshake Sec-WebSocket-Key field is invalid 0108 0109 Error codes with this value will compare equal to @ref condition::handshake_failed 0110 */ 0111 bad_sec_key, 0112 0113 /** The WebSocket handshake Sec-WebSocket-Version field is missing 0114 0115 Error codes with this value will compare equal to @ref condition::handshake_failed 0116 */ 0117 no_sec_version, 0118 0119 /** The WebSocket handshake Sec-WebSocket-Version field is invalid 0120 0121 Error codes with this value will compare equal to @ref condition::handshake_failed 0122 */ 0123 bad_sec_version, 0124 0125 /** The WebSocket handshake Sec-WebSocket-Accept field is missing 0126 0127 Error codes with this value will compare equal to @ref condition::handshake_failed 0128 */ 0129 no_sec_accept, 0130 0131 /** The WebSocket handshake Sec-WebSocket-Accept field is invalid 0132 0133 Error codes with this value will compare equal to @ref condition::handshake_failed 0134 */ 0135 bad_sec_accept, 0136 0137 /** The WebSocket handshake was declined by the remote peer 0138 0139 Error codes with this value will compare equal to @ref condition::handshake_failed 0140 */ 0141 upgrade_declined, 0142 0143 // 0144 // Protocol errors 0145 // 0146 // These will compare equal to condition::protocol_violation 0147 // 0148 0149 /** The WebSocket frame contained an illegal opcode 0150 0151 Error codes with this value will compare equal to @ref condition::protocol_violation 0152 */ 0153 bad_opcode, 0154 0155 /** The WebSocket data frame was unexpected 0156 0157 Error codes with this value will compare equal to @ref condition::protocol_violation 0158 */ 0159 bad_data_frame, 0160 0161 /** The WebSocket continuation frame was unexpected 0162 0163 Error codes with this value will compare equal to @ref condition::protocol_violation 0164 */ 0165 bad_continuation, 0166 0167 /** The WebSocket frame contained illegal reserved bits 0168 0169 Error codes with this value will compare equal to @ref condition::protocol_violation 0170 */ 0171 bad_reserved_bits, 0172 0173 /** The WebSocket control frame was fragmented 0174 0175 Error codes with this value will compare equal to @ref condition::protocol_violation 0176 */ 0177 bad_control_fragment, 0178 0179 /** The WebSocket control frame size was invalid 0180 0181 Error codes with this value will compare equal to @ref condition::protocol_violation 0182 */ 0183 bad_control_size, 0184 0185 /** The WebSocket frame was unmasked 0186 0187 Error codes with this value will compare equal to @ref condition::protocol_violation 0188 */ 0189 bad_unmasked_frame, 0190 0191 /** The WebSocket frame was masked 0192 0193 Error codes with this value will compare equal to @ref condition::protocol_violation 0194 */ 0195 bad_masked_frame, 0196 0197 /** The WebSocket frame size was not canonical 0198 0199 Error codes with this value will compare equal to @ref condition::protocol_violation 0200 */ 0201 bad_size, 0202 0203 /** The WebSocket frame payload was not valid utf8 0204 0205 Error codes with this value will compare equal to @ref condition::protocol_violation 0206 */ 0207 bad_frame_payload, 0208 0209 /** The WebSocket close frame reason code was invalid 0210 0211 Error codes with this value will compare equal to @ref condition::protocol_violation 0212 */ 0213 bad_close_code, 0214 0215 /** The WebSocket close frame payload size was invalid 0216 0217 Error codes with this value will compare equal to @ref condition::protocol_violation 0218 */ 0219 bad_close_size, 0220 0221 /** The WebSocket close frame payload was not valid utf8 0222 0223 Error codes with this value will compare equal to @ref condition::protocol_violation 0224 */ 0225 bad_close_payload 0226 }; 0227 0228 /// Error conditions corresponding to sets of error codes. 0229 enum class condition 0230 { 0231 /** The WebSocket handshake failed 0232 0233 This condition indicates that the WebSocket handshake failed. If 0234 the corresponding HTTP response indicates the keep-alive behavior, 0235 then the handshake may be reattempted. 0236 */ 0237 handshake_failed = 1, 0238 0239 /** A WebSocket protocol violation occurred 0240 0241 This condition indicates that the remote peer on the WebSocket 0242 connection sent data which violated the protocol. 0243 */ 0244 protocol_violation 0245 }; 0246 0247 } // websocket 0248 } // beast 0249 } // boost 0250 0251 #include <boost/beast/websocket/impl/error.hpp> 0252 #ifdef BOOST_BEAST_HEADER_ONLY 0253 #include <boost/beast/websocket/impl/error.ipp> 0254 #endif 0255 0256 #endif
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