pprovenzano commented on code in PR #14083:
URL: https://github.com/apache/kafka/pull/14083#discussion_r1293786529


##########
core/src/main/scala/kafka/server/ControllerApis.scala:
##########
@@ -842,6 +847,75 @@ class ControllerApis(val requestChannel: RequestChannel,
       }
   }
 
+  def handleCreateDelegationTokenRequest(request: RequestChannel.Request): 
CompletableFuture[Unit] = {
+    val alterRequest = request.body[CreateDelegationTokenRequest]
+
+    val requester = request.context.principal
+    val ownerPrincipalName = alterRequest.data.ownerPrincipalName
+    val ownerPrincipalType = alterRequest.data.ownerPrincipalType
+    val owner = if (ownerPrincipalName == null || ownerPrincipalName.isEmpty) {
+      request.context.principal
+    } else {
+      new KafkaPrincipal(ownerPrincipalType, ownerPrincipalName)
+    }
+
+    // Requester is always allowed to create token for self
+    if (!owner.equals(requester) && 
+      !authHelper.authorize(request.context, CREATE_TOKENS, USER, 
owner.toString)) {
+      requestHelper.sendResponseMaybeThrottle(request, requestThrottleMs =>
+        
CreateDelegationTokenResponse.prepareResponse(request.context.requestVersion, 
requestThrottleMs,
+          Errors.DELEGATION_TOKEN_AUTHORIZATION_FAILED, owner, requester))
+    }
+
+    val context = new ControllerRequestContext(request.context.header.data, 
request.context.principal,
+      OptionalLong.empty())
+
+    // Copy the response data to a new response so we can apply the request 
version
+    controller.createDelegationToken(context, alterRequest.data)
+      .thenApply[Unit] { response =>
+         requestHelper.sendResponseMaybeThrottle(request, requestThrottleMs =>
+           CreateDelegationTokenResponse.prepareResponse(
+             request.context.requestVersion,
+             requestThrottleMs,
+             Errors.forCode(response.errorCode()),
+             new KafkaPrincipal(response.principalType(), 
response.principalName()),
+             new KafkaPrincipal(response.tokenRequesterPrincipalType(), 
response.tokenRequesterPrincipalName()),
+             response.issueTimestampMs(),
+             response.expiryTimestampMs(),
+             response.maxTimestampMs(),
+             response.tokenId(),
+             ByteBuffer.wrap(response.hmac())))
+      }
+  }
+
+  def handleRenewDelegationTokenRequest(request: RequestChannel.Request): 
CompletableFuture[Unit] = {
+     val alterRequest = request.body[RenewDelegationTokenRequest]

Review Comment:
   Fixed



##########
core/src/main/scala/kafka/server/ControllerApis.scala:
##########
@@ -842,6 +847,75 @@ class ControllerApis(val requestChannel: RequestChannel,
       }
   }
 
+  def handleCreateDelegationTokenRequest(request: RequestChannel.Request): 
CompletableFuture[Unit] = {
+    val alterRequest = request.body[CreateDelegationTokenRequest]
+
+    val requester = request.context.principal
+    val ownerPrincipalName = alterRequest.data.ownerPrincipalName
+    val ownerPrincipalType = alterRequest.data.ownerPrincipalType
+    val owner = if (ownerPrincipalName == null || ownerPrincipalName.isEmpty) {
+      request.context.principal
+    } else {
+      new KafkaPrincipal(ownerPrincipalType, ownerPrincipalName)
+    }
+
+    // Requester is always allowed to create token for self
+    if (!owner.equals(requester) && 
+      !authHelper.authorize(request.context, CREATE_TOKENS, USER, 
owner.toString)) {
+      requestHelper.sendResponseMaybeThrottle(request, requestThrottleMs =>
+        
CreateDelegationTokenResponse.prepareResponse(request.context.requestVersion, 
requestThrottleMs,
+          Errors.DELEGATION_TOKEN_AUTHORIZATION_FAILED, owner, requester))
+    }
+
+    val context = new ControllerRequestContext(request.context.header.data, 
request.context.principal,
+      OptionalLong.empty())
+
+    // Copy the response data to a new response so we can apply the request 
version
+    controller.createDelegationToken(context, alterRequest.data)
+      .thenApply[Unit] { response =>
+         requestHelper.sendResponseMaybeThrottle(request, requestThrottleMs =>
+           CreateDelegationTokenResponse.prepareResponse(
+             request.context.requestVersion,
+             requestThrottleMs,
+             Errors.forCode(response.errorCode()),
+             new KafkaPrincipal(response.principalType(), 
response.principalName()),
+             new KafkaPrincipal(response.tokenRequesterPrincipalType(), 
response.tokenRequesterPrincipalName()),
+             response.issueTimestampMs(),
+             response.expiryTimestampMs(),
+             response.maxTimestampMs(),
+             response.tokenId(),
+             ByteBuffer.wrap(response.hmac())))
+      }
+  }
+
+  def handleRenewDelegationTokenRequest(request: RequestChannel.Request): 
CompletableFuture[Unit] = {
+     val alterRequest = request.body[RenewDelegationTokenRequest]
+
+     val context = new ControllerRequestContext(
+       request.context.header.data,
+       request.context.principal,
+       OptionalLong.empty())
+     controller.renewDelegationToken(context, alterRequest.data)
+       .thenApply[Unit] { response =>
+         requestHelper.sendResponseMaybeThrottle(request, requestThrottleMs =>
+           new 
RenewDelegationTokenResponse(response.setThrottleTimeMs(requestThrottleMs)))
+      }
+  }
+
+  def handleExpireDelegationTokenRequest(request: RequestChannel.Request): 
CompletableFuture[Unit] = {
+     val alterRequest = request.body[ExpireDelegationTokenRequest]

Review Comment:
   Fixed



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