Open
Description
Describe the bug
Proxy Authentification fails with Status 407 when Proxy requires preemptive authentication.
My code:
SdkHttpClient httpClient = ApacheHttpClient.builder()
.proxyConfiguration(ProxyConfiguration.builder()
.endpoint(URI.create("http://proxy.example.com"))
.username("username")
.password("password")
.preemptiveBasicAuthenticationEnabled(true)
.build())
.build();
SnsClient snsClient = SnsClient.builder()
.httpClient(httpClient)
.credentialsProvider(credentials)
.region(Region.EU_CENTRAL_1)
.build();A request sent by this client fails with 407 when the proxy requires preemptive authentication.
It works fine when the proxy does not.
Regression Issue
- Select this option if this issue appears to be a regression.
Expected Behavior
A request passes the proxy.
Current Behavior
software.amazon.awssdk.services.sns.model.SnsException: null (Service: Sns, Status Code: 407, Request ID: null)
at software.amazon.awssdk.core.internal.http.CombinedResponseHandler.handleErrorResponse(CombinedResponseHandler.java:125)
at software.amazon.awssdk.core.internal.http.CombinedResponseHandler.handleResponse(CombinedResponseHandler.java:82)
at software.amazon.awssdk.core.internal.http.CombinedResponseHandler.handle(CombinedResponseHandler.java:60)
at software.amazon.awssdk.core.internal.http.CombinedResponseHandler.handle(CombinedResponseHandler.java:41)
at software.amazon.awssdk.core.internal.http.pipeline.stages.HandleResponseStage.execute(HandleResponseStage.java:50)
at software.amazon.awssdk.core.internal.http.pipeline.stages.HandleResponseStage.execute(HandleResponseStage.java:38)
Reproduction Steps
SdkHttpClient httpClient = ApacheHttpClient.builder()
.proxyConfiguration(ProxyConfiguration.builder()
.endpoint(URI.create("http://proxy.example.com"))
.username("username")
.password("password")
.preemptiveBasicAuthenticationEnabled(true)
.build())
.build();
SnsClient snsClient = SnsClient.builder()
.httpClient(httpClient)
.credentialsProvider(credentials)
.region(Region.EU_CENTRAL_1)
.build();
PublishRequest request = PublishRequest.builder()
.message("Greetings")
.topicArn("arn:aws:sns:eu-central-1:account:topic")
.build();
PublishResponse publishResult = snsClient.publish(request);Possible Solution
I found a possible reason in software.amazon.awssdk.http.apache.internal.utils.ApacheUtils.
The method addPreemptiveAuthenticationProxy contains:
BasicScheme basicAuth = new BasicScheme();
authCache.put(targetHost, basicAuth);I added a challenge and now it works:
BasicScheme basicAuth = new BasicScheme();
basicAuth.processChallenge(new BasicHeader(AUTH.PROXY_AUTH, "BASIC realm=default"));
authCache.put(targetHost, basicAuth);Additional Information/Context
No response
AWS Java SDK version used
2.30.17
JDK version used
openjdk version "21.0.4" 2024-07-16 LTS
Operating System and version
Linux rodeoarch 6.12.4-arch1-1