sieveLau

If we accept to use aes-gcm to encrypt the content, the password hashing part would be the next part to be strengthened. After all, md5 is too fast for password...

用v4版本写response matcher，rcode不是0的就forward到另一个上游，直到rcode为0为止就可以了。示例： ``` plugins: - tag: upstream_success type: response_matcher args: rcode: [0] - tag: main_sequence type: sequence args: exec: # 优先返回ipv4结果 - _prefer_ipv4 - ecs_auto - to_google - if: (!...