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Limit client flags to server capabilities #2262

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Limit client flags to server capabilities #2262

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2 changes: 1 addition & 1 deletion lib/commands/server_handshake.js
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Original file line number Diff line number Diff line change
Expand Up @@ -35,7 +35,7 @@ class ServerHandshake extends Command {

readClientReply(packet, connection) {
// check auth here
const clientHelloReply = Packets.HandshakeResponse.fromPacket(packet);
const clientHelloReply = Packets.HandshakeResponse.fromPacket(packet, this.args.capabilityFlags);
// TODO check we don't have something similar already
connection.clientHelloReply = clientHelloReply;
if (this.args.authCallback) {
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4 changes: 2 additions & 2 deletions lib/packets/handshake_response.js
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Original file line number Diff line number Diff line change
Expand Up @@ -99,11 +99,11 @@ class HandshakeResponse {
const p = this.serializeResponse(Packet.MockBuffer());
return this.serializeResponse(Buffer.alloc(p.offset));
}
static fromPacket(packet) {
static fromPacket(packet, serverFlags) {
const args = {};
args.clientFlags = packet.readInt32();
function isSet(flag) {
return args.clientFlags & ClientConstants[flag];
return (args.clientFlags & serverFlags) & ClientConstants[flag];
}
args.maxPacketSize = packet.readInt32();
args.charsetNumber = packet.readInt8();
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