Replace non-ascii characters in headers to be in line with the service. (#292)

* Replace non-ascii characters in headers to be in line with the service.

* Use a more concise method

CHANGELOG.md

@@ -5,6 +5,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Fixed
+* Replace non-ascii characters in headers to be in line with the service.
 ### Security
 * No redirects by default
 

data/src/main/java/com/microsoft/azure/kusto/data/ClientImpl.java

@@ -307,6 +307,8 @@ class ClientImpl implements Client, StreamingClient {
                 activityId, activityId, activityId, clientRequestId);
         headers.put("x-ms-activitycontext", activityContext);
 
+        // replace non-ascii characters in header values with '?'
+        headers.replaceAll((_i, v) -> v == null ? null : v.replaceAll("[^\\x00-\\x7F]", "?"));
         return headers;
     }
 

ingest/src/test/java/com/microsoft/azure/kusto/ingest/E2ETest.java

@@ -122,6 +122,7 @@ class E2ETest {
 
         ConnectionStringBuilder engineCsb = ConnectionStringBuilder.createWithAadApplicationCredentials(System.getenv("ENGINE_CONNECTION_STRING"), appId,
                 appKey, tenantId);
+        engineCsb.setUserNameForTracing("Java_E2ETest_ø");
         try {
             streamingIngestClient = IngestClientFactory.createStreamingIngestClient(engineCsb);
             queryClient = ClientFactory.createClient(engineCsb);