将nginx部署到log.io前端后发现功能虽然正常，但控制台有错误记录
|
1 |
WebSocket connection to 'ws://logs.renjie.me/socket.io/1/websocket/QqAw_JLwsOqC_w1kG6mr' failed: Error during WebSocket handshake: Unexpected response code: 502 |
接着就是刷屏式的如下请求了
|
1 |
XHR finished loading: GET "http://logs.renjie.me/socket.io/1/xhr-polling/QqAw_JLwsOqC_w1kG6mr?t=1450325139049". |
猜测肯定遇到降级处理了，找到了其依赖的socket.io源码确认果然如此
|
1 2 3 4 5 6 7 |
module.exports = { websocket: require('./websocket') , flashsocket: require('./flashsocket') , htmlfile: require('./htmlfile') , 'xhr-polling': require('./xhr-polling') , 'jsonp-polling': require('./jsonp-polling') }; |
|
1 2 3 4 5 6 7 8 9 10 11 12 |
Remote Address:120.25.163.48:80 Request URL:http://logs.renjie.me/socket.io/1/?t=1450326393264 Request Method:GET Status Code:200 OK ==================》 Connection:keep-alive Content-Type:text/plain Date:Thu, 17 Dec 2015 04:26:33 GMT Server:nginx/1.6.3 Transfer-Encoding:chunked poo25heDWcamJuUXG6mt:60:60:websocket,htmlfile,xhr-polling,jsonp-polling |
那问题基本归根与nginx对于websocket这种新协议的代理问题，简单优化配置如下
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 |
upstream logs { server 127.0.0.1:28778; } map $http_upgrade $connection_upgrade { default upgrade; '' close; } server { listen 80; server_name logs.renjie.me; location / { proxy_pass http://logs; proxy_http_version 1.1; proxy_set_header Upgrade $http_upgrade; proxy_set_header Connection "Upgrade"; } } |
可见不用新开端口服务，直接在现有的http端口通道上进行改造即可
同时附上websocket握手协议的相关记录以方便日后进行深入研究
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 |
Request URL:ws://logs.renjie.me/socket.io/1/websocket/poo25heDWcamJuUXG6mt Request Method:GET Status Code:101 Switching Protocols Request Headers Connection:Upgrade Sec-WebSocket-Extensions:permessage-deflate; client_max_window_bits Sec-WebSocket-Key:liT05Oj1ZyHrhtj8E7YBAw== Sec-WebSocket-Version:13 Upgrade:websocket User-Agent:Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.86 Safari/537.36 Response Headers Connection:upgrade Sec-WebSocket-Accept:Xufj5Cntpx6HMfTp2TVRyfp9SYw= Server:nginx/1.6.3 Upgrade:websocket |