馃攰 Warn when messages are sent before the v1.1 handshake #607
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At the moment, it's possible for messages to be sent before the client- server handshake. Sending messages before the handshake has happened has undefined behaviour, and can result in errors such as in: #605 We can't just ignore these messages, because old clients might potentially be on v1.0 of the client-server protocol, in which the server informs the client when it's ready, but not the other way around, so it's impossible to know when a client should be considered "ready", and its messages acceptable. Instead, we add a warning for clients on v1.1 who have sent a message before their handshake. In order to aid with debugging, we keep track of the first message received, and log it when the handshake is received (which means that v1.0 clients will never get such a warning).
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ericyhwang
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May 2, 2023
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Fixes #605
At the moment, it's possible for messages to be sent before the client- server handshake.
Sending messages before the handshake has happened has undefined behaviour, and can result in errors such as in:
#605
We can't just ignore these messages, because old clients might potentially be on v1.0 of the client-server protocol, in which the server informs the client when it's ready, but not the other way around, so it's impossible to know when a client should be considered "ready", and its messages acceptable.
Instead, we add a warning for clients on v1.1 who have sent a message before their handshake. In order to aid with debugging, we keep track of the first message received, and log it when the handshake is received (which means that v1.0 clients will never get such a warning).