Use TrinoRequestUser to get the user for the query

Author: vishalya

gateway-ha/src/main/java/io/trino/gateway/ha/router/TrinoRequestUser.java

@@ -178,10 +178,10 @@ private Optional<String> extractUserFromBearerAuth(String header, String userFie
 
         String token = header.substring(space + 1).trim();
 
-        if (header.split("\\.").length == 3) { //this is probably a JWS
+        if (token.split("\\.").length == 3) { //this is probably a JWS
             log.debug("Trying to extract from JWS");
             try {
-                DecodedJWT jwt = JWT.decode(header);
+                DecodedJWT jwt = JWT.decode(token);
                 if (jwt.getClaims().containsKey(userField)) {
                     return Optional.of(jwt.getClaim(userField).asString());
                 }

gateway-ha/src/main/java/io/trino/gateway/proxyserver/ProxyRequestHandler.java

@@ -29,6 +29,7 @@
 import io.trino.gateway.ha.router.OAuth2GatewayCookie;
 import io.trino.gateway.ha.router.QueryHistoryManager;
 import io.trino.gateway.ha.router.RoutingManager;
+import io.trino.gateway.ha.router.TrinoRequestUser;
 import io.trino.gateway.proxyserver.ProxyResponseHandler.ProxyResponse;
 import jakarta.annotation.PreDestroy;
 import jakarta.servlet.http.HttpServletRequest;
@@ -58,11 +59,8 @@
 import static io.airlift.http.client.Request.Builder.preparePost;
 import static io.airlift.http.client.StaticBodyGenerator.createStaticBodyGenerator;
 import static io.airlift.jaxrs.AsyncResponseHandler.bindAsyncResponse;
-import static io.trino.gateway.ha.handler.ProxyUtils.AUTHORIZATION;
 import static io.trino.gateway.ha.handler.ProxyUtils.QUERY_TEXT_LENGTH_FOR_HISTORY;
 import static io.trino.gateway.ha.handler.ProxyUtils.SOURCE_HEADER;
-import static io.trino.gateway.ha.handler.ProxyUtils.getQueryUser;
-import static io.trino.gateway.ha.handler.QueryIdCachingProxyHandler.USER_HEADER;
 import static jakarta.ws.rs.core.MediaType.TEXT_PLAIN_TYPE;
 import static jakarta.ws.rs.core.Response.Status.BAD_GATEWAY;
 import static jakarta.ws.rs.core.Response.Status.OK;
@@ -86,6 +84,7 @@ public class ProxyRequestHandler
     private final boolean addXForwardedHeaders;
     private final List<String> statementPaths;
     private final boolean includeClusterInfoInResponse;
+    private final TrinoRequestUser.TrinoRequestUserProvider trinoRequestUserProvider;
 
     @Inject
     public ProxyRequestHandler(
@@ -97,6 +96,7 @@ public ProxyRequestHandler(
         this.httpClient = requireNonNull(httpClient, "httpClient is null");
         this.routingManager = requireNonNull(routingManager, "routingManager is null");
         this.queryHistoryManager = requireNonNull(queryHistoryManager, "queryHistoryManager is null");
+        trinoRequestUserProvider = new TrinoRequestUser.TrinoRequestUserProvider(haGatewayConfiguration.getRequestAnalyzerConfig());
         cookiesEnabled = GatewayCookieConfigurationPropertiesProvider.getInstance().isEnabled();
         asyncTimeout = haGatewayConfiguration.getRouting().getAsyncTimeout();
         addXForwardedHeaders = haGatewayConfiguration.getRouting().isAddXForwardedHeaders();
@@ -173,7 +173,8 @@ private void performRequest(
         FluentFuture<ProxyResponse> future = executeHttp(request);
 
         if (statementPaths.stream().anyMatch(request.getUri().getPath()::startsWith) && request.getMethod().equals(HttpMethod.POST)) {
-            future = future.transform(response -> recordBackendForQueryId(request, response), executor);
+            String username = trinoRequestUserProvider.getInstance(servletRequest).getUser().orElse("Unknown");
+            future = future.transform(response -> recordBackendForQueryId(request, response, username), executor);
             if (includeClusterInfoInResponse) {
                 cookieBuilder.add(new NewCookie.Builder("trinoClusterHost").value(remoteUri.getHost()).build());
             }
@@ -250,11 +251,11 @@ private static WebApplicationException badRequest(String message)
                         .build());
     }
 
-    private ProxyResponse recordBackendForQueryId(Request request, ProxyResponse response)
+    private ProxyResponse recordBackendForQueryId(Request request, ProxyResponse response, String username)
     {
         log.debug("For Request [%s] got Response [%s]", request.getUri(), response.body());
 
-        QueryHistoryManager.QueryDetail queryDetail = getQueryDetailsFromRequest(request);
+        QueryHistoryManager.QueryDetail queryDetail = getQueryDetailsFromRequest(request, username);
 
         log.debug("Extracting proxy destination : [%s] for request : [%s]", queryDetail.getBackendUrl(), request.getUri());
 
@@ -276,12 +277,12 @@ private ProxyResponse recordBackendForQueryId(Request request, ProxyResponse res
         return response;
     }
 
-    public static QueryHistoryManager.QueryDetail getQueryDetailsFromRequest(Request request)
+    public static QueryHistoryManager.QueryDetail getQueryDetailsFromRequest(Request request, String username)
     {
         QueryHistoryManager.QueryDetail queryDetail = new QueryHistoryManager.QueryDetail();
         queryDetail.setBackendUrl(getRemoteTarget(request.getUri()));
         queryDetail.setCaptureTime(System.currentTimeMillis());
-        queryDetail.setUser(getQueryUser(request.getHeader(USER_HEADER), request.getHeader(AUTHORIZATION)));
+        queryDetail.setUser(username);
         queryDetail.setSource(request.getHeader(SOURCE_HEADER));
 
         String queryText = new String(((StaticBodyGenerator) request.getBodyGenerator()).getBody(), UTF_8);

gateway-ha/src/test/java/io/trino/gateway/ha/router/TestTrinoRequestUser.java

@@ -13,12 +13,22 @@
  */
 package io.trino.gateway.ha.router;
 
+import com.auth0.jwt.JWT;
+import com.auth0.jwt.algorithms.Algorithm;
 import io.airlift.json.JsonCodec;
+import io.trino.gateway.ha.config.RequestAnalyzerConfig;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.ws.rs.core.HttpHeaders;
 import org.junit.jupiter.api.Test;
 
+import java.time.Instant;
+import java.util.Date;
 import java.util.Optional;
 
+import static io.trino.gateway.ha.handler.QueryIdCachingProxyHandler.USER_HEADER;
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
 
 final class TestTrinoRequestUser
 {
@@ -42,4 +52,31 @@ void testJsonCreator()
         assertThat(deserializedTrinoRequestUser.getUser()).isEqualTo(trinoRequestUser.getUser());
         assertThat(deserializedTrinoRequestUser.getUserInfo()).isEqualTo(trinoRequestUser.getUserInfo());
     }
+
+    @Test
+    void testUserFromJwtToken()
+    {
+        String claimUserName = "username";
+        String claimUserValue = "trino";
+
+        RequestAnalyzerConfig requestAnalyzerConfig = new RequestAnalyzerConfig();
+        requestAnalyzerConfig.setTokenUserField(claimUserName);
+
+        Algorithm algorithm = Algorithm.HMAC256("random");
+
+        Instant expiryTime =  Instant.now().plusSeconds(60);
+        String token = JWT.create()
+                .withIssuer("gateway")
+                .withClaim(claimUserName, claimUserValue)
+                .withExpiresAt(Date.from(expiryTime))
+                .sign(algorithm);
+
+        HttpServletRequest mockRequest = mock(HttpServletRequest.class);
+        when(mockRequest.getHeader(USER_HEADER)).thenReturn(null);
+        when(mockRequest.getHeader(HttpHeaders.AUTHORIZATION)).thenReturn("Bearer " + token);
+
+        TrinoRequestUser trinoRequestUser = new TrinoRequestUser.TrinoRequestUserProvider(requestAnalyzerConfig).getInstance(mockRequest);
+
+        assertThat(trinoRequestUser.getUser()).hasValue(claimUserValue);
+    }
 }