Github user vanzin commented on a diff in the pull request:
https://github.com/apache/spark/pull/13950#discussion_r75185483
--- 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,
+ headerValue,
+ clientRequest,
+ serverResponse.getRequest().getURI())
+ if (newHeader != null) return newHeader
--- End diff --
```
if (...) {
return ...
}
```
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