详解Nginx反向代理WebSocket响应403的解决办法

在Nginx反向代理一个带有WebSocket功能的Spring Web程序( )时,发现访问WebSocket接口时总是出现403响应,Nginx的配置参考的是

  http {    // ssl 相关配置 ...        map $http_upgrade $connection_upgrade {      default upgrade;      '' close;    }      server {      listen 8020;      location /ws {        proxy_pass http://some-ip:8080;        proxy_http_version 1.1;        proxy_set_header Upgrade $http_upgrade;        proxy_set_header Connection $connection_upgrade;      }    }  }    

唯一不同的是我们的Nginx配置了https。

于是打开Spring日志查看直接访问和通过Nginx访问的差别。

直接访问的日志:

  DEBUG ... o.s.web.servlet.DispatcherServlet    : DispatcherServlet with name 'dispatcherServlet' processing GET request for [/ws/gs-guide-websocket/786/kz0qai5l/websocket]  DEBUG ... s.w.s.m.m.a.RequestMappingHandlerMapping : Looking up handler method for path /gs-guide-websocket/786/kz0qai5l/websocket  DEBUG ... s.w.s.m.m.a.RequestMappingHandlerMapping : Did not find handler method for [/gs-guide-websocket/786/kz0qai5l/websocket]  DEBUG ... o.s.w.s.s.s.WebSocketHandlerMapping   : Matching patterns for request [/gs-guide-websocket/786/kz0qai5l/websocket] are [/gs-guide-websocket/**]  DEBUG ... o.s.w.s.s.s.WebSocketHandlerMapping   : URI Template variables for request [/gs-guide-websocket/786/kz0qai5l/websocket] are {}  DEBUG ... o.s.w.s.s.s.WebSocketHandlerMapping   : Mapping [/gs-guide-websocket/786/kz0qai5l/websocket] to HandlerExecutionChain with handler [org.springframework.web.socket.sockjs.support.SockJsHttpRequestHandler@307f6b8c] and 1 interceptor  DEBUG ... o.s.web.servlet.DispatcherServlet    : Last-Modified value for [/ws/gs-guide-websocket/786/kz0qai5l/websocket] is: -1  DEBUG ... o.s.web.cors.DefaultCorsProcessor    : Skip CORS processing: request is from same origin  DEBUG ... o.s.w.s.s.t.h.DefaultSockJsService    : Processing transport request: GET http://localhost:8080/ws/gs-guide-websocket/786/kz0qai5l/websocket  DEBUG ... o.s.web.servlet.DispatcherServlet    : Null ModelAndView returned to DispatcherServlet with name 'dispatcherServlet': assuming HandlerAdapter completed request handling  DEBUG ... o.s.web.servlet.DispatcherServlet    : Successfully completed request  

通过Nginx访问的日志:

  DEBUG ... o.s.web.servlet.DispatcherServlet    : DispatcherServlet with name 'dispatcherServlet' processing GET request for [/ws/gs-guide-websocket/297/jp1c3ab5/websocket]  DEBUG ... s.w.s.m.m.a.RequestMappingHandlerMapping : Looking up handler method for path /gs-guide-websocket/297/jp1c3ab5/websocket  DEBUG ... s.w.s.m.m.a.RequestMappingHandlerMapping : Did not find handler method for [/gs-guide-websocket/297/jp1c3ab5/websocket]  DEBUG ... o.s.w.s.s.s.WebSocketHandlerMapping   : Matching patterns for request [/gs-guide-websocket/297/jp1c3ab5/websocket] are [/gs-guide-websocket/**]  DEBUG ... o.s.w.s.s.s.WebSocketHandlerMapping   : URI Template variables for request [/gs-guide-websocket/297/jp1c3ab5/websocket] are {}  DEBUG ... o.s.w.s.s.s.WebSocketHandlerMapping   : Mapping [/gs-guide-websocket/297/jp1c3ab5/websocket] to HandlerExecutionChain with handler [org.springframework.web.socket.sockjs.support.SockJsHttpRequestHandler@307f6b8c] and 1 interceptor  DEBUG ... o.s.web.servlet.DispatcherServlet    : Last-Modified value for [/ws/gs-guide-websocket/297/jp1c3ab5/websocket] is: -1  DEBUG ... o.s.w.s.s.t.h.DefaultSockJsService    : Processing transport request: GET http://localhost:8080/ws/gs-guide-websocket/297/jp1c3ab5/websocket  DEBUG ... o.s.w.s.s.s.OriginHandshakeInterceptor  : Handshake request rejected, Origin header value https://some-host.com not allowed  DEBUG ... o.s.w.s.s.s.HandshakeInterceptorChain  : org.springframework.web.socket.server.support.OriginHandshakeInterceptor@25ce6ad4 returns false from beforeHandshake - precluding handshake  DEBUG ... o.s.web.servlet.DispatcherServlet    : Null ModelAndView returned to DispatcherServlet with name 'dispatcherServlet': assuming HandlerAdapter completed request handling  DEBUG ... o.s.web.servlet.DispatcherServlet    : Successfully completed request  

注意到直接访问的日志里有这么一条:

代码如下:
DEBUG ... o.s.web.cors.DefaultCorsProcessor : Skip CORS processing: request is from same origin

通过Nginx访问的日志里有这么一条:

代码如下:
DEBUG ... o.s.w.s.s.s.OriginHandshakeInterceptor   : Handshake request rejected, Origin header value not allowed

然后Google查询相关解决办法,找到github上的这个 ,所以只需要修改Nginx的配置,添加 proxy_set_header Origin ""; 就行了:

  http {    // ssl 相关配置 ...        map $http_upgrade $connection_upgrade {      default upgrade;      '' close;    }      server {      listen 8020;      location /ws {        proxy_pass http://some-ip:8080;        proxy_http_version 1.1;        proxy_set_header Upgrade $http_upgrade;        proxy_set_header Connection $connection_upgrade;        proxy_set_header Origin "";      }    }  }  

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支Fatmouse

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