Turn off http features not intended for slave

If daemon is loaded as a slave, modules which have features
intended for master won't be loaded.

Change-Id: I2314bf0eef7f22c5aa439fbd5d9ecaa8ee300e34

gerrit-httpd/src/main/java/com/google/gerrit/httpd/GerritOptions.java

@@ -16,12 +16,18 @@ package com.google.gerrit.httpd;
 
 public class GerritOptions {
   private final boolean headless;
+  private final boolean slave;
 
-  public GerritOptions(boolean headless) {
+  public GerritOptions(boolean headless, boolean slave) {
     this.headless = headless;
+    this.slave = slave;
   }
 
   public boolean enableDefaultUi() {
     return !headless;
   }
+
+  public boolean enableMasterFeatures() {
+    return !slave;
+  }
 }

gerrit-httpd/src/main/java/com/google/gerrit/httpd/GitOverHttpServlet.java

@@ -98,12 +98,20 @@ public class GitOverHttpServlet extends GitServlet {
   }
 
   static class Module extends AbstractModule {
+
+    private final boolean enableReceive;
+
+    public Module(boolean enableReceive) {
+      this.enableReceive = enableReceive;
+    }
+
     @Override
     protected void configure() {
       bind(Resolver.class);
       bind(UploadFactory.class);
       bind(UploadFilter.class);
-      bind(ReceiveFactory.class);
+      bind(new TypeLiteral<ReceivePackFactory<HttpServletRequest>>() {}).to(
+          enableReceive ? ReceiveFactory.class : DisabledReceiveFactory.class);
       bind(ReceiveFilter.class);
       install(new CacheModule() {
         @Override
@@ -119,9 +127,10 @@ public class GitOverHttpServlet extends GitServlet {
   }
 
   @Inject
-  GitOverHttpServlet(Resolver resolver,
-      UploadFactory upload, UploadFilter uploadFilter,
-      ReceiveFactory receive, ReceiveFilter receiveFilter) {
+  GitOverHttpServlet(Resolver resolver, UploadFactory upload,
+      UploadFilter uploadFilter,
+      ReceivePackFactory<HttpServletRequest> receive,
+      ReceiveFilter receiveFilter) {
     setRepositoryResolver(resolver);
     setAsIsFileService(AsIsFileService.DISABLED);
 
@@ -308,6 +317,15 @@ public class GitOverHttpServlet extends GitServlet {
     }
   }
 
+  static class DisabledReceiveFactory implements
+      ReceivePackFactory<HttpServletRequest> {
+    @Override
+    public ReceivePack create(HttpServletRequest req, Repository db)
+        throws ServiceNotEnabledException {
+      throw new ServiceNotEnabledException();
+    }
+  }
+
   static class ReceiveFilter implements Filter {
     private final Cache<AdvertisedObjectsCacheKey, Set<ObjectId>> cache;
 

gerrit-httpd/src/main/java/com/google/gerrit/httpd/WebModule.java

@@ -82,6 +82,36 @@ public class WebModule extends LifecycleModule {
     }
     install(new RunAsFilter.Module());
 
+    if (options.enableMasterFeatures()) {
+      installAuthModule();
+      install(new UrlModule(urlConfig, options));
+      install(new UiRpcModule());
+    }
+    install(new GerritRequestModule());
+    install(new GitOverHttpServlet.Module(options.enableMasterFeatures()));
+
+    bind(GitWebConfig.class).toInstance(gitWebConfig);
+    if (gitWebConfig.getGitwebCGI() != null) {
+      install(new GitWebModule());
+    }
+
+    bind(ContactStore.class).toProvider(ContactStoreProvider.class).in(
+        SINGLETON);
+    bind(GerritConfigProvider.class);
+    bind(GerritConfig.class).toProvider(GerritConfigProvider.class);
+    DynamicSet.setOf(binder(), WebUiPlugin.class);
+
+    install(new AsyncReceiveCommits.Module());
+
+    bind(SocketAddress.class).annotatedWith(RemotePeer.class).toProvider(
+        HttpRemotePeerProvider.class).in(RequestScoped.class);
+
+    bind(ProxyProperties.class).toProvider(ProxyPropertiesProvider.class);
+
+    listener().toInstance(registerInParentInjectors());
+  }
+
+  private void installAuthModule() {
     switch (authConfig.getAuthType()) {
       case HTTP:
       case HTTP_LDAP:
@@ -109,30 +139,5 @@ public class WebModule extends LifecycleModule {
       default:
         throw new ProvisionException("Unsupported loginType: " + authConfig.getAuthType());
     }
-
-    install(new UrlModule(urlConfig, options));
-    install(new UiRpcModule());
-    install(new GerritRequestModule());
-    install(new GitOverHttpServlet.Module());
-
-    bind(GitWebConfig.class).toInstance(gitWebConfig);
-    if (gitWebConfig.getGitwebCGI() != null) {
-      install(new GitWebModule());
-    }
-
-    bind(ContactStore.class).toProvider(ContactStoreProvider.class).in(
-        SINGLETON);
-    bind(GerritConfigProvider.class);
-    bind(GerritConfig.class).toProvider(GerritConfigProvider.class);
-    DynamicSet.setOf(binder(), WebUiPlugin.class);
-
-    install(new AsyncReceiveCommits.Module());
-
-    bind(SocketAddress.class).annotatedWith(RemotePeer.class).toProvider(
-        HttpRemotePeerProvider.class).in(RequestScoped.class);
-
-    bind(ProxyProperties.class).toProvider(ProxyPropertiesProvider.class);
-
-    listener().toInstance(registerInParentInjectors());
   }
 }

gerrit-pgm/src/main/java/com/google/gerrit/pgm/Daemon.java

@@ -356,7 +356,7 @@ public class Daemon extends SiteProgram {
     modules.add(new AbstractModule() {
       @Override
       protected void configure() {
-        bind(GerritOptions.class).toInstance(new GerritOptions(headless));
+        bind(GerritOptions.class).toInstance(new GerritOptions(headless, slave));
         if (test) {
           bind(SecureStore.class).toProvider(SecureStoreProvider.class);
         }

gerrit-war/src/main/java/com/google/gerrit/httpd/WebAppInitializer.java

@@ -310,7 +310,7 @@ public class WebAppInitializer extends GuiceServletContextListener
     modules.add(new AbstractModule() {
       @Override
       protected void configure() {
-        bind(GerritOptions.class).toInstance(new GerritOptions(false));
+        bind(GerritOptions.class).toInstance(new GerritOptions(false, false));
       }
     });
     modules.add(GarbageCollectionRunner.module());