Hoist RequireSslFilter out of WebModule

On googlesource.com we have a separate filter for this, and having two
of them causes problems.

Change-Id: If04b61be38eed67fa8edd5cbd164f4b97ea1e6e2

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

@@ -34,11 +34,20 @@ import javax.servlet.http.HttpServletResponse;
 
 /** Requires the connection to use SSL, redirects if not. */
 @Singleton
-class RequireSslFilter implements Filter {
-  static class Module extends ServletModule {
+public class RequireSslFilter implements Filter {
+  public static class Module extends ServletModule {
+    private final boolean wantSsl;
+
+    @Inject
+    Module(@Nullable @CanonicalWebUrl String canonicalUrl) {
+      this.wantSsl = canonicalUrl != null && canonicalUrl.startsWith("https:");
+    }
+
     @Override
     protected void configureServlets() {
-      filter("/*").through(RequireSslFilter.class);
+      if (wantSsl) {
+        filter("/*").through(RequireSslFilter.class);
+      }
     }
   }
 

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

@@ -16,7 +16,6 @@ package com.google.gerrit.httpd;
 
 import static com.google.gerrit.extensions.registration.PrivateInternals_DynamicTypes.registerInParentInjectors;
 
-import com.google.gerrit.common.Nullable;
 import com.google.gerrit.extensions.registration.DynamicSet;
 import com.google.gerrit.extensions.webui.WebUiPlugin;
 import com.google.gerrit.httpd.auth.become.BecomeAnyAccountModule;
@@ -28,7 +27,6 @@ import com.google.gerrit.httpd.rpc.UiRpcModule;
 import com.google.gerrit.lifecycle.LifecycleModule;
 import com.google.gerrit.server.RemotePeer;
 import com.google.gerrit.server.config.AuthConfig;
-import com.google.gerrit.server.config.CanonicalWebUrl;
 import com.google.gerrit.server.config.GerritRequestModule;
 import com.google.gerrit.server.config.GitwebCgiConfig;
 import com.google.gerrit.server.git.AsyncReceiveCommits;
@@ -42,17 +40,14 @@ import java.net.SocketAddress;
 
 public class WebModule extends LifecycleModule {
   private final AuthConfig authConfig;
-  private final boolean wantSSL;
   private final GitwebCgiConfig gitwebCgiConfig;
   private final GerritOptions options;
 
   @Inject
   WebModule(AuthConfig authConfig,
-      @CanonicalWebUrl @Nullable String canonicalUrl,
       GerritOptions options,
       GitwebCgiConfig gitwebCgiConfig) {
     this.authConfig = authConfig;
-    this.wantSSL = canonicalUrl != null && canonicalUrl.startsWith("https:");
     this.options = options;
     this.gitwebCgiConfig = gitwebCgiConfig;
   }
@@ -62,9 +57,6 @@ public class WebModule extends LifecycleModule {
     bind(RequestScopePropagator.class).to(GuiceRequestScopePropagator.class);
     bind(HttpRequestContext.class);
 
-    if (wantSSL) {
-      install(new RequireSslFilter.Module());
-    }
     install(new RunAsFilter.Module());
 
     installAuthModule();

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

@@ -28,6 +28,7 @@ import com.google.gerrit.httpd.GitOverHttpModule;
 import com.google.gerrit.httpd.H2CacheBasedWebSession;
 import com.google.gerrit.httpd.HttpCanonicalWebUrlProvider;
 import com.google.gerrit.httpd.RequestContextFilter;
+import com.google.gerrit.httpd.RequireSslFilter;
 import com.google.gerrit.httpd.WebModule;
 import com.google.gerrit.httpd.WebSshGlueModule;
 import com.google.gerrit.httpd.auth.oauth.OAuthModule;
@@ -445,6 +446,7 @@ public class Daemon extends SiteProgram {
     modules.add(H2CacheBasedWebSession.module());
     modules.add(sysInjector.getInstance(GitOverHttpModule.class));
     modules.add(sysInjector.getInstance(WebModule.class));
+    modules.add(sysInjector.getInstance(RequireSslFilter.Module.class));
     modules.add(new HttpPluginModule());
     if (sshd) {
       modules.add(sshInjector.getInstance(WebSshGlueModule.class));

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

@@ -349,6 +349,7 @@ public class WebAppInitializer extends GuiceServletContextListener
     modules.add(AllRequestFilter.module());
     modules.add(sysInjector.getInstance(GitOverHttpModule.class));
     modules.add(sysInjector.getInstance(WebModule.class));
+    modules.add(sysInjector.getInstance(RequireSslFilter.Module.class));
     if (sshInjector != null) {
       modules.add(sshInjector.getInstance(WebSshGlueModule.class));
     } else {