Github user vanzin commented on a diff in the pull request: https://github.com/apache/spark/pull/13950#discussion_r75185375 --- Diff: core/src/main/scala/org/apache/spark/ui/JettyUtils.scala --- @@ -186,6 +188,50 @@ private[spark] object JettyUtils extends Logging { contextHandler } + /** Create a handler for proxying request to Workers and Application Drivers */ + def createProxyHandler( + prefix: String, + target: String): ServletContextHandler = { + val servlet = new ProxyServlet { + override def rewriteTarget(request: HttpServletRequest): String = { + val rewrittenURI = createProxyURI( + prefix, + target, + request.getRequestURI(), + request.getQueryString()) + if (rewrittenURI == null) { + return null + } + if (!validateDestination(rewrittenURI.getHost(), rewrittenURI.getPort())) { + return null + } + rewrittenURI.toString() + } + + override def filterServerResponseHeader( + clientRequest: HttpServletRequest, + serverResponse: Response, + headerName: String, + headerValue: String): String = { + if (headerName.equalsIgnoreCase("location")) { + val newHeader = createProxyLocationHeader( + prefix, --- End diff -- indentation
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