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hack to workaround uWebsockets issue preventing parsing of some IPv6 addresses (reported by Petr Kracík)

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Doug Hoyte
2024-10-18 18:04:21 -04:00
parent bfb9fd14f4
commit 29d7afe6c3
2 changed files with 7 additions and 0 deletions
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5
src/apps/relay/RelayWebsocket.cpp
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@ -197,6 +197,11 @@ void RelayServer::runWebsocket(ThreadPool<MsgWebsocket>::Thread &thr) {
if (cfg().relay__realIpHeader.size()) {
auto header = req.getHeader(cfg().relay__realIpHeader.c_str()).toString(); // not string_view: parseIP needs trailing 0 byte
// HACK: uWebSockets strips leading : characters, which interferes with IPv6 parsing.
// This fixes it for the common ::1 and ::ffff:1.2.3.4 cases. FIXME: fix the underlying library.
if (header == "1" || header.starts_with("ffff:")) header = std::string("::") + header;
c->ipAddr = parseIP(header);
if (c->ipAddr.size() == 0) LW << "Couldn't parse IP from header " << cfg().relay__realIpHeader << ": " << header;
}