[GitHub] [spark] vanzin opened a new pull request #26873: [SPARK-30240][core] Support HTTP redirects directly to a proxy server.

[GitBox <gi...@apache.org>]

vanzin opened a new pull request #26873: [SPARK-30240][core] Support HTTP redirects directly to a proxy server.
URL: https://github.com/apache/spark/pull/26873
 
 
   Spark's web UI has support for generating links to paths with a
   prefix, to support a proxy server, but those do not apply when
   the UI is responding with redirects. In that case, Spark is sending
   its own URL back to the client, and if it's behind a dumb proxy
   server that doesn't do rewriting (like when using stunnel for HTTPS
   support) then the client will see the wrong URL and may fail.
   
   The change adds a new config option to configure an address for the
   proxy server, and a new handler that intercepts redirects and replaces
   the URL with one pointing at the proxy server. This is needed on top
   of the "proxy base path" support because redirects use full URLs, not
   just absolute paths from the server's root.
   
   Tested with added unit test, with Spark behind stunnel, and in a
   more complicated app using a different HTTPS proxy.

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