Github user SvetlinZarev commented on the issue:
https://github.com/apache/tomcat/pull/39
Issue Description
===
WsWebSocketContainer generates bad CONNECT request when a proxy is used.
The host does not contain port information, hence the app cannot connect to
wss:// endpoints. Also some stricter proxy servers may reject requests without
port info, thus making WsWebSocketContainer.connectToServer() fail for both
ws:// and wss:// endpoints.
Steps to reproduce
===
Prerequisites
---
1. Download Tomcat 8.5.9
2. Configure it to use port 8081
3. Clone g...@github.com:adamfisk/LittleProxy.git
4. Clone MCVE: g...@github.com:SvetlinZarev/websocket-tomcat-bug.git
5. Build (3), (4) -> mvn clean install (you may want to rename the mcve to
ROOT)
How to reproduce it
---
1. Start LittleProxy (it defaults to port 8080)
2. Configure Tomcat use the proxy: export
CATALINA_OPTS="-Dhttp.proxyHost=localhost -Dhttp.proxyPort=8080
-Dhttps.proxyHost=localhost -Dhttps.proxyPort=8080"
3. Start tomcat: catalina.sh run
4. Request the mcve: http://localhost:8081/ws
Expected behavior
---
You should see:
Connected. Sending message...
Message: Hello World!
Disconnected:
Actual behavior
---
An exception is thrown. In case of LittleProxy it is a timeout exception
during channel.handshake().get(); In my other case it is a DeploymentException
caused by a bad request, because the (stricter) proxy rejected the request
because it does not contain port info.
Additional information
---
You can play with the mcve by adding the following request parameters:
* scheme - i.e. ws://, wss://
* server - i.e. echo.websocket.org
Example: 4. Request the mcve with:
http://localhost:8081/ws?scheme=wss://&server=echo.websocket.org:443
It will succeed. Now remove the port from teh server string. It will fail.
---
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