fix: allow proxied gb32960 platform login ips

modules/protocols/protocol-gb32960/src/main/java/com/lingniu/ingest/protocol/gb32960/auth/Gb32960PlatformAuthorizer.java

@@ -4,6 +4,7 @@ import com.lingniu.ingest.protocol.gb32960.config.Gb32960Properties;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import java.util.Arrays;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;
@@ -64,6 +65,7 @@ public final class Gb32960PlatformAuthorizer {
                 ? Set.of()
                 : entry.getAllowedIps().stream()
                         .filter(Objects::nonNull)
+                        .flatMap(value -> Arrays.stream(value.split(",")))
                         .map(String::trim)
                         .filter(ip -> !ip.isBlank())
                         .collect(java.util.stream.Collectors.toSet());

modules/protocols/protocol-gb32960/src/test/java/com/lingniu/ingest/protocol/gb32960/inbound/Gb32960AccessServiceTest.java

@@ -61,6 +61,21 @@ class Gb32960AccessServiceTest {
                 .accepted()).isTrue();
     }
 
+    @Test
+    void authenticatePlatformLogin_acceptsCommaSeparatedAllowedIps() {
+        Gb32960Properties.Auth auth = new Gb32960Properties.Auth();
+        Gb32960Properties.Auth.Platform platform = new Gb32960Properties.Auth.Platform();
+        platform.setUsername("lingniu");
+        platform.setPassword("secret");
+        platform.setAllowedIps(List.of("115.29.187.205,127.0.0.1"));
+        auth.setPlatforms(List.of(platform));
+
+        Gb32960PlatformAuthorizer authorizer = new Gb32960PlatformAuthorizer(auth.getPlatforms());
+
+        assertThat(authorizer.authenticate("lingniu", "secret", "127.0.0.1")
+                .accepted()).isTrue();
+    }
+
     private static Gb32960AccessService newService(boolean vinAuthEnabled) {
         Gb32960Properties.Auth auth = new Gb32960Properties.Auth();
         auth.setEnabled(vinAuthEnabled);