After SASL negotiation and, if appropriate, Resource Binding, the receiving entity for a stream MUST determine the initiating entity's JID.
After SASL negotiation and, if appropriate, Resource Binding, the receiving entity for a stream MUST determine the initiating entity's JID.
SASL协商后（第6节），如果正确，资源绑定（第7节），流接收实体必须决定初始实体的JID。