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github-merge-queue[bot] pushed a commit to branch 
gh-readonly-queue/dev/pr-12921-32e2efb2f89351049e4ddca4c494d5d476fbe5cb
in repository https://gitbox.apache.org/repos/asf/seatunnel.git

commit dea766726249e72e8246b2abc6b89d98306f01b2
Author: FatMan <[email protected]>
AuthorDate: Wed Oct 28 16:57:23 2026 +0000

    [Fix][Zeta] Read submit-job options from the query string only (#12921)
    
    Co-authored-by: chen <[email protected]>
---
 .../engine/server/rest/servlet/BaseServlet.java    |  42 +++
 .../server/rest/servlet/SubmitJobServlet.java      |   3 +-
 .../rest/RestApiSubmitJobContentTypeTest.java      | 297 +++++++++++++++++++++
 .../servlet/BaseServletQueryParameterTest.java     |  94 +++++++
 4 files changed, 435 insertions(+), 1 deletion(-)

diff --git 
a/seatunnel-engine/seatunnel-engine-server/src/main/java/org/apache/seatunnel/engine/server/rest/servlet/BaseServlet.java
 
b/seatunnel-engine/seatunnel-engine-server/src/main/java/org/apache/seatunnel/engine/server/rest/servlet/BaseServlet.java
index a13d373d86..3bd9796cd9 100644
--- 
a/seatunnel-engine/seatunnel-engine-server/src/main/java/org/apache/seatunnel/engine/server/rest/servlet/BaseServlet.java
+++ 
b/seatunnel-engine/seatunnel-engine-server/src/main/java/org/apache/seatunnel/engine/server/rest/servlet/BaseServlet.java
@@ -33,6 +33,8 @@ import javax.servlet.http.HttpServletResponse;
 
 import java.io.BufferedReader;
 import java.io.IOException;
+import java.io.UnsupportedEncodingException;
+import java.net.URLDecoder;
 import java.nio.charset.StandardCharsets;
 import java.util.HashMap;
 import java.util.Map;
@@ -158,6 +160,46 @@ public class BaseServlet extends HttpServlet {
         return requestBody(req, ConfigFormat.JSON);
     }
 
+    /**
+     * Reads the request parameters from the query string only.
+     *
+     * <p>Use this instead of {@link #getParameterMap(HttpServletRequest)} 
when the request body is
+     * read as well. For a body sent as {@code 
application/x-www-form-urlencoded}, which is the
+     * default of {@code curl -d}, {@link 
HttpServletRequest#getParameterMap()} parses the body as
+     * form fields and consumes it, so a later {@link 
HttpServletRequest#getReader()} fails with
+     * {@code IllegalStateException: STREAMED}.
+     */
+    protected Map<String, String> getQueryParameterMap(HttpServletRequest req) 
{
+        Map<String, String> reqParameterMap = new HashMap<>();
+        String queryString = req.getQueryString();
+        if (queryString == null || queryString.isEmpty()) {
+            return reqParameterMap;
+        }
+        for (String pair : queryString.split("&")) {
+            if (pair.isEmpty()) {
+                continue;
+            }
+            int separator = pair.indexOf('=');
+            String name = separator < 0 ? pair : pair.substring(0, separator);
+            String value = separator < 0 ? "" : pair.substring(separator + 1);
+            reqParameterMap.put(decodeQueryComponent(name), 
decodeQueryComponent(value));
+        }
+        return reqParameterMap;
+    }
+
+    private static String decodeQueryComponent(String component) {
+        // UnsupportedEncodingException cannot occur for UTF-8, it is only 
declared by this
+        // overload. IllegalArgumentException means a malformed escape such as 
"%zz". Both are
+        // rethrown as IllegalArgumentException naming the component, which 
ExceptionHandlingFilter
+        // turns into HTTP 400 instead of a 500.
+        try {
+            return URLDecoder.decode(component, StandardCharsets.UTF_8.name());
+        } catch (UnsupportedEncodingException | IllegalArgumentException e) {
+            throw new IllegalArgumentException(
+                    "Invalid URL encoding in query parameter: " + component, 
e);
+        }
+    }
+
     protected Map<String, String> getParameterMap(HttpServletRequest req) {
         Map<String, String> reqParameterMap = new HashMap<>();
 
diff --git 
a/seatunnel-engine/seatunnel-engine-server/src/main/java/org/apache/seatunnel/engine/server/rest/servlet/SubmitJobServlet.java
 
b/seatunnel-engine/seatunnel-engine-server/src/main/java/org/apache/seatunnel/engine/server/rest/servlet/SubmitJobServlet.java
index fa00693cfb..97f0d990fb 100644
--- 
a/seatunnel-engine/seatunnel-engine-server/src/main/java/org/apache/seatunnel/engine/server/rest/servlet/SubmitJobServlet.java
+++ 
b/seatunnel-engine/seatunnel-engine-server/src/main/java/org/apache/seatunnel/engine/server/rest/servlet/SubmitJobServlet.java
@@ -41,7 +41,8 @@ public class SubmitJobServlet extends BaseServlet {
     @Override
     public void doPost(HttpServletRequest req, HttpServletResponse resp) 
throws IOException {
 
-        Map<String, String> requestParams = getParameterMap(req);
+        // The job config is the request body, so the parameters come from the 
query string only
+        Map<String, String> requestParams = getQueryParameterMap(req);
         ConfigFormat configFormat = 
ConfigFormat.fromString(requestParams.get(CONFIG_FORMAT));
         writeJson(resp, jobInfoService.submitJob(requestParams, 
requestBody(req, configFormat)));
     }
diff --git 
a/seatunnel-engine/seatunnel-engine-server/src/test/java/org/apache/seatunnel/engine/server/rest/RestApiSubmitJobContentTypeTest.java
 
b/seatunnel-engine/seatunnel-engine-server/src/test/java/org/apache/seatunnel/engine/server/rest/RestApiSubmitJobContentTypeTest.java
new file mode 100644
index 0000000000..4bc7f79566
--- /dev/null
+++ 
b/seatunnel-engine/seatunnel-engine-server/src/test/java/org/apache/seatunnel/engine/server/rest/RestApiSubmitJobContentTypeTest.java
@@ -0,0 +1,297 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.seatunnel.engine.server.rest;
+
+import org.apache.seatunnel.shade.org.eclipse.jetty.server.Connector;
+import org.apache.seatunnel.shade.org.eclipse.jetty.server.ServerConnector;
+
+import org.apache.seatunnel.common.utils.ExceptionUtils;
+import org.apache.seatunnel.common.utils.FileUtils;
+import org.apache.seatunnel.engine.common.config.ConfigProvider;
+import org.apache.seatunnel.engine.common.config.SeaTunnelConfig;
+import org.apache.seatunnel.engine.common.config.server.HttpConfig;
+import org.apache.seatunnel.engine.common.runtime.ExecutionMode;
+import org.apache.seatunnel.engine.server.SeaTunnelServer;
+import org.apache.seatunnel.engine.server.SeaTunnelServerStarter;
+import org.apache.seatunnel.engine.server.TestUtils;
+
+import org.awaitility.Awaitility;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.TestInstance;
+
+import com.hazelcast.config.Config;
+import com.hazelcast.instance.impl.HazelcastInstanceImpl;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.lang.reflect.Field;
+import java.net.HttpURLConnection;
+import java.net.URL;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Paths;
+import java.util.concurrent.TimeUnit;
+import java.util.stream.Collectors;
+
+/**
+ * Verifies that {@code POST /submit-job} reads the job config from the 
request body and its options
+ * from the query string whatever the request content type is. {@code curl -d} 
sends {@code
+ * application/x-www-form-urlencoded} by default, for which reading the 
request parameters used to
+ * consume the body and fail the request with {@code IllegalStateException: 
STREAMED}.
+ */
+@TestInstance(TestInstance.Lifecycle.PER_CLASS)
+public class RestApiSubmitJobContentTypeTest {
+
+    private static final String FORM_CONTENT_TYPE = 
"application/x-www-form-urlencoded";
+    private static final int HAZELCAST_PORT = TestUtils.getAvailablePort(100);
+
+    private HazelcastInstanceImpl instance;
+    private SeaTunnelServer server;
+    private int restPort;
+
+    @BeforeAll
+    public void setUp() throws Exception {
+        Config hazelcastConfig = Config.loadFromString(getHazelcastConfig());
+        hazelcastConfig.setClusterName(
+                TestUtils.getClusterName("SubmitJobContentTypeTest_" + 
System.nanoTime()));
+
+        SeaTunnelConfig seaTunnelConfig = 
ConfigProvider.locateAndGetSeaTunnelConfig();
+        seaTunnelConfig.setHazelcastConfig(hazelcastConfig);
+        seaTunnelConfig.getEngineConfig().setMode(ExecutionMode.LOCAL);
+
+        HttpConfig httpConfig = 
seaTunnelConfig.getEngineConfig().getHttpConfig();
+        httpConfig.setEnabled(true);
+        httpConfig.setEnableHttps(false);
+        httpConfig.setPort(26000);
+        httpConfig.setEnableDynamicPort(true);
+        httpConfig.setPortRange(2000);
+
+        instance = 
SeaTunnelServerStarter.createHazelcastInstance(seaTunnelConfig);
+        server = 
instance.node.nodeEngine.getService(SeaTunnelServer.SERVICE_NAME);
+
+        restPort = getHttpPort(server);
+        awaitRestReady(restPort);
+    }
+
+    @AfterAll
+    public void tearDown() {
+        try {
+            if (server != null) {
+                server.shutdown(true);
+            }
+            if (instance != null) {
+                instance.shutdown();
+            }
+            FileUtils.deleteFile(Paths.get("logs").toString());
+        } catch (Exception e) {
+            System.err.println(ExceptionUtils.getMessage(e));
+        }
+    }
+
+    @Test
+    public void testSubmitHoconJobWithFormContentType() throws Exception {
+        HttpResponse response =
+                post("/submit-job?format=hocon&jobName=form_hocon", 
FORM_CONTENT_TYPE, hoconBody());
+
+        assertSubmitted(response, "form_hocon");
+    }
+
+    @Test
+    public void testSubmitJsonJobWithFormContentType() throws Exception {
+        HttpResponse response =
+                post("/submit-job?jobName=form_json", FORM_CONTENT_TYPE, 
jsonBody());
+
+        assertSubmitted(response, "form_json");
+    }
+
+    @Test
+    public void testSubmitJsonJobWithJsonContentType() throws Exception {
+        HttpResponse response =
+                post("/submit-job?jobName=json_json", "application/json", 
jsonBody());
+
+        assertSubmitted(response, "json_json");
+    }
+
+    @Test
+    public void testQueryParametersAreUrlDecoded() throws Exception {
+        HttpResponse response =
+                post(
+                        "/submit-job?format=hocon&jobName=sales%26ops+100%25",
+                        FORM_CONTENT_TYPE, hoconBody());
+
+        assertSubmitted(response, "sales&ops 100%");
+    }
+
+    private static void assertSubmitted(HttpResponse response, String 
expectedJobName) {
+        Assertions.assertEquals(200, response.code, () -> "responseBody=" + 
response.body);
+        Assertions.assertTrue(
+                response.body.contains("\"jobId\""),
+                () -> "Response should contain jobId, got: " + response.body);
+        Assertions.assertTrue(
+                response.body.contains("\"jobName\":\"" + expectedJobName + 
"\""),
+                () -> "Response should contain jobName " + expectedJobName + 
": " + response.body);
+    }
+
+    private static String hoconBody() {
+        return "env {\n"
+                + "  job.mode = \"BATCH\"\n"
+                + "}\n"
+                + "source {\n"
+                + "  FakeSource {\n"
+                + "    row.num = 5\n"
+                + "    schema { fields { name = \"string\" } }\n"
+                + "  }\n"
+                + "}\n"
+                + "transform {}\n"
+                + "sink { Console {} }";
+    }
+
+    private static String jsonBody() {
+        return "{\"env\": {\"job.mode\": \"batch\"},"
+                + " \"source\": [{\"plugin_name\": \"FakeSource\", 
\"plugin_output\": \"fake\","
+                + " \"row.num\": 5, \"schema\": {\"fields\": {\"name\": 
\"string\"}}}],"
+                + " \"transform\": [],"
+                + " \"sink\": [{\"plugin_name\": \"Console\", 
\"plugin_input\": [\"fake\"]}]}";
+    }
+
+    private HttpResponse post(String pathAndQuery, String contentType, String 
body)
+            throws IOException {
+        HttpURLConnection conn =
+                (HttpURLConnection)
+                        new URL("http://localhost:"; + restPort + 
pathAndQuery).openConnection();
+        conn.setRequestMethod("POST");
+        conn.setRequestProperty("Content-Type", contentType);
+        conn.setConnectTimeout(5000);
+        conn.setReadTimeout(30000);
+        conn.setDoOutput(true);
+        try (OutputStream os = conn.getOutputStream()) {
+            os.write(body.getBytes(StandardCharsets.UTF_8));
+        }
+
+        int code = conn.getResponseCode();
+        try (BufferedReader in =
+                new BufferedReader(
+                        new InputStreamReader(
+                                code >= 200 && code < 300
+                                        ? conn.getInputStream()
+                                        : conn.getErrorStream(),
+                                StandardCharsets.UTF_8))) {
+            return new HttpResponse(code, 
in.lines().collect(Collectors.joining()));
+        } finally {
+            conn.disconnect();
+        }
+    }
+
+    private int getHttpPort(SeaTunnelServer seaTunnelServer) throws Exception {
+        Field jettyServiceField = 
SeaTunnelServer.class.getDeclaredField("jettyService");
+        jettyServiceField.setAccessible(true);
+        Awaitility.await()
+                .atMost(30, TimeUnit.SECONDS)
+                .until(() -> jettyServiceField.get(seaTunnelServer) != null);
+        Object jettyService = jettyServiceField.get(seaTunnelServer);
+
+        Field serverField = jettyService.getClass().getDeclaredField("server");
+        serverField.setAccessible(true);
+        org.apache.seatunnel.shade.org.eclipse.jetty.server.Server jettyServer 
=
+                (org.apache.seatunnel.shade.org.eclipse.jetty.server.Server)
+                        serverField.get(jettyService);
+
+        return Awaitility.await()
+                .atMost(30, TimeUnit.SECONDS)
+                .until(
+                        () -> {
+                            for (Connector connector : 
jettyServer.getConnectors()) {
+                                if (connector instanceof ServerConnector) {
+                                    int port = ((ServerConnector) 
connector).getLocalPort();
+                                    if (port > 0) {
+                                        return port;
+                                    }
+                                }
+                            }
+                            return -1;
+                        },
+                        port -> port > 0);
+    }
+
+    private void awaitRestReady(int port) {
+        Awaitility.await()
+                .atMost(30, TimeUnit.SECONDS)
+                .pollInterval(200, TimeUnit.MILLISECONDS)
+                .until(
+                        () -> {
+                            try {
+                                HttpURLConnection conn =
+                                        (HttpURLConnection)
+                                                new URL("http://localhost:"; + 
port + "/overview")
+                                                        .openConnection();
+                                conn.setRequestMethod("GET");
+                                conn.setConnectTimeout(2000);
+                                conn.setReadTimeout(2000);
+                                int code = conn.getResponseCode();
+                                conn.disconnect();
+                                return code == 200;
+                            } catch (Exception e) {
+                                return false;
+                            }
+                        });
+    }
+
+    private static String getHazelcastConfig() {
+        // This single-member fixture must not scan nearby ports used by its 
REST service.
+        return "hazelcast:\n"
+                + "  cluster-name: seatunnel\n"
+                + "  network:\n"
+                + "    rest-api:\n"
+                + "      enabled: true\n"
+                + "      endpoint-groups:\n"
+                + "        CLUSTER_WRITE:\n"
+                + "          enabled: true\n"
+                + "    join:\n"
+                + "      auto-detection:\n"
+                + "        enabled: false\n"
+                + "      multicast:\n"
+                + "        enabled: false\n"
+                + "      tcp-ip:\n"
+                + "        enabled: false\n"
+                + "    port:\n"
+                + "      auto-increment: true\n"
+                + "      port-count: 100\n"
+                + "      port: "
+                + HAZELCAST_PORT
+                + "\n"
+                + "\n"
+                + "  properties:\n"
+                + "    hazelcast.invocation.max.retry.count: 200\n"
+                + "    hazelcast.invocation.retry.pause.millis: 2000\n"
+                + "    hazelcast.logging.type: log4j2\n";
+    }
+
+    private static class HttpResponse {
+        private final int code;
+        private final String body;
+
+        private HttpResponse(int code, String body) {
+            this.code = code;
+            this.body = body;
+        }
+    }
+}
diff --git 
a/seatunnel-engine/seatunnel-engine-server/src/test/java/org/apache/seatunnel/engine/server/rest/servlet/BaseServletQueryParameterTest.java
 
b/seatunnel-engine/seatunnel-engine-server/src/test/java/org/apache/seatunnel/engine/server/rest/servlet/BaseServletQueryParameterTest.java
new file mode 100644
index 0000000000..5b880573ef
--- /dev/null
+++ 
b/seatunnel-engine/seatunnel-engine-server/src/test/java/org/apache/seatunnel/engine/server/rest/servlet/BaseServletQueryParameterTest.java
@@ -0,0 +1,94 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.seatunnel.engine.server.rest.servlet;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+import javax.servlet.http.HttpServletRequest;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+class BaseServletQueryParameterTest {
+
+    private final BaseServlet servlet = new BaseServlet(null);
+
+    @Test
+    void testNoQueryString() {
+        Assertions.assertTrue(parse(null).isEmpty());
+        Assertions.assertTrue(parse("").isEmpty());
+    }
+
+    @Test
+    void testDecodesNamesAndValues() {
+        Map<String, String> expected = new HashMap<>();
+        expected.put("format", "hocon");
+        expected.put("jobName", "sales&ops 100%");
+        expected.put("job id", "a+b=c");
+
+        Assertions.assertEquals(
+                expected, 
parse("format=hocon&jobName=sales%26ops+100%25&job+id=a%2Bb%3Dc"));
+    }
+
+    @Test
+    void testKeysWithoutValueAndEmptyPairs() {
+        Map<String, String> expected = new HashMap<>();
+        expected.put("a", "");
+        expected.put("b", "");
+        expected.put("", "x");
+
+        Assertions.assertEquals(expected, parse("a&&b=&=x&"));
+    }
+
+    @Test
+    void testLastValueWinsForRepeatedNames() {
+        Assertions.assertEquals("2", parse("jobId=1&jobId=2").get("jobId"));
+    }
+
+    @Test
+    void testInvalidEncodingIsRejected() {
+        IllegalArgumentException exception =
+                Assertions.assertThrows(IllegalArgumentException.class, () -> 
parse("jobName=%zz"));
+        Assertions.assertTrue(exception.getMessage().contains("%zz"));
+    }
+
+    @Test
+    void testDoesNotReadTheRequestParametersOrBody() {
+        HttpServletRequest request = mock(HttpServletRequest.class);
+        when(request.getQueryString()).thenReturn("format=hocon");
+
+        servlet.getQueryParameterMap(request);
+
+        // getParameterMap() would parse and consume a form-encoded body
+        verify(request, never()).getParameterMap();
+        verify(request, never()).getParameter(anyString());
+    }
+
+    private Map<String, String> parse(String queryString) {
+        HttpServletRequest request = mock(HttpServletRequest.class);
+        when(request.getQueryString()).thenReturn(queryString);
+        return servlet.getQueryParameterMap(request);
+    }
+}

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