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DPL Websocket: Add protocol param to encode_websocket_handshake_reply which allows a response Sec-WebSocket-Accept in handshake. #14687

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Merged
ktf merged 7 commits into from
Sep 27, 2025
Merged

DPL Websocket: Add protocol param to encode_websocket_handshake_reply which allows a response Sec-WebSocket-Accept in handshake. #14687

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68a3649
DPL Websocket: Add overloaded encode_websocket_handshake_reply which …
nicolaspoffley Sep 22, 2025
7d6fc54
Default param "" for protocol instead of overloading for encode_webso…
nicolaspoffley Sep 23, 2025
3e160df
Use ternary expression to avoid repetition
nicolaspoffley Sep 23, 2025
2cea051
Please consider the following formatting changes
alibuild Sep 23, 2025
2c3a6d6
Merge pull request #1 from alibuild/alibot-cleanup-14687
nicolaspoffley Sep 23, 2025
00c55fd
Update Framework/Core/src/HTTPParser.cxx
ktf Sep 23, 2025
6cf4c19
Update HTTPParser.cxx
ktf Sep 25, 2025
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2 changes: 1 addition & 1 deletion Framework/Core/src/DPLWebSocket.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -276,7 +276,7 @@ void WSDPLHandler::endHeaders()
}
/// Create an appropriate reply
LOG(debug) << "Got upgrade request with nonce " << mHeaders["sec-websocket-key"].c_str();
std::string reply = encode_websocket_handshake_reply(mHeaders["sec-websocket-key"].c_str());
std::string reply = encode_websocket_handshake_reply(mHeaders["sec-websocket-key"].c_str(), "dpl");
mHandshaken = true;

uv_buf_t bfr = uv_buf_init(strdup(reply.data()), reply.size());
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5 changes: 3 additions & 2 deletions Framework/Core/src/HTTPParser.cxx
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Expand Up @@ -214,15 +214,16 @@ std::string HTTPParserHelpers::calculateAccept(const char* nonce)
return fmt::format("{}", base);
}

std::string encode_websocket_handshake_reply(char const* nonce)
std::string encode_websocket_handshake_reply(char const* nonce, const char* protocol)
{
constexpr auto res =
"HTTP/1.1 101 Switching Protocols\r\n"
"Upgrade: websocket\r\n"
"Connection: Upgrade\r\n"
"Access-Control-Allow-Origin: \"*\"\r\n"
"{}"
"Sec-WebSocket-Accept: {}\r\n\r\n";
return fmt::format(res, HTTPParserHelpers::calculateAccept(nonce));
return fmt::format(res, protocol && protocol[0] ? fmt::format("Sec-WebSocket-Protocol: {}\r\n", protocol) : "", HTTPParserHelpers::calculateAccept(nonce));
}

void parse_http_request(char* start, size_t size, HTTPParser* parser)
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3 changes: 2 additions & 1 deletion Framework/Core/src/HTTPParser.h
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Expand Up @@ -125,7 +125,8 @@ std::string encode_websocket_handshake_request(const char* path, const char* pro

/// Encodes the server reply for a given websocket connection
/// @a nonce the nonce of the request.
std::string encode_websocket_handshake_reply(char const* nonce);
/// @a protocol the websocket subprotocol to confirm (optional)
std::string encode_websocket_handshake_reply(char const* nonce, char const* protocol = "");

/// Encodes the buffer @a src which is @a size long to a number of buffers suitable to be sent via libuv.
/// If @a binary is provided the binary bit is set.
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