Chromad: Add authentication flow

chromeos/dbus/auth_policy_client.cc

 // Copyright (c) 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 #include "chromeos/dbus/auth_policy_client.h"
 
 #include "base/bind.h"
 #include "base/memory/weak_ptr.h"
 #include "dbus/bus.h"
 #include "dbus/message.h"
 #include "dbus/object_proxy.h"
 #include "third_party/cros_system_api/dbus/service_constants.h"
 
 namespace chromeos {
 
 namespace {
 
 class AuthPolicyClientImpl : public AuthPolicyClient {
  public:
   AuthPolicyClientImpl() : weak_ptr_factory_(this) {}
 
   ~AuthPolicyClientImpl() override {}
 
   // AuthPolicyClient override.
   void JoinAdDomain(const std::string& machine_name,
-                    const std::string& user,
+                    const std::string& user_principal_name,
                     int password_fd,
                     const JoinCallback& callback) override {
     dbus::MethodCall method_call(authpolicy::kAuthPolicyInterface,
                                  authpolicy::kAuthPolicyJoinADDomain);
     dbus::MessageWriter writer(&method_call);
     writer.AppendString(machine_name);
-    writer.AppendString(user);
+    writer.AppendString(user_principal_name);
     writer.AppendFileDescriptor(password_fd);
     proxy_->CallMethod(&method_call, dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
                        base::Bind(&AuthPolicyClientImpl::HandleJoinCallback,
                                   weak_ptr_factory_.GetWeakPtr(), callback));
   }
 
+  void AuthenticateUser(const std::string& user_principal_name,
+                        int password_fd,
+                        const AuthCallback& callback) override {
+    dbus::MethodCall method_call(authpolicy::kAuthPolicyInterface,
+                                 authpolicy::kAuthPolicyAuthenticateUser);
+    dbus::MessageWriter writer(&method_call);
+    writer.AppendString(user_principal_name);
+    writer.AppendFileDescriptor(password_fd);
+    proxy_->CallMethod(&method_call, dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
+                       base::Bind(&AuthPolicyClientImpl::HandleAuthCallback,
+                                  weak_ptr_factory_.GetWeakPtr(), callback));
+  }
+
   void RefreshDevicePolicy(const RefreshPolicyCallback& callback) override {
     dbus::MethodCall method_call(authpolicy::kAuthPolicyInterface,
                                  authpolicy::kAuthPolicyRefreshDevicePolicy);
     proxy_->CallMethod(
         &method_call, dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
         base::Bind(&AuthPolicyClientImpl::HandleRefreshPolicyCallback,
                    weak_ptr_factory_.GetWeakPtr(), callback));
   }
 
   void RefreshUserPolicy(const std::string& account_id,
@@ skipping 41 matching lines @@
     if (!reader.PopInt32(&res)) {
       LOG(ERROR) << "Join: Couldn't get an error from the response";
       // TODO(rsorokin): make proper call, after defining possible errors codes.
       callback.Run(authpolicy::AD_JOIN_ERROR_DBUS_FAIL);
       return;
     }
 
     callback.Run(res);
   }
 
+  void HandleAuthCallback(const AuthCallback& callback,
+                          dbus::Response* response) {
+    std::string user_id;
+    int res = authpolicy::AUTH_USER_ERROR_DBUS_FAILURE;
+    if (!response) {
+      LOG(ERROR) << "Auth: Failed to  call to authpolicy";
+      // TODO(rsorokin): make proper call, after defining possible errors codes.
+      callback.Run(authpolicy::AUTH_USER_ERROR_DBUS_FAILURE, user_id);
+      return;
+    }
+    dbus::MessageReader reader(response);
+    if (!reader.PopInt32(&res)) {
+      LOG(ERROR) << "Auth: Failed to get an error from the response";
+      // TODO(rsorokin): make proper call, after defining possible errors codes.
+      callback.Run(res, user_id);
+      return;
+    }
+    if (!reader.PopString(&user_id)) {
+      LOG(ERROR) << "Auth: Failed to get user_id from the response";
+      callback.Run(res, user_id);
+      return;
+    }
+    callback.Run(res, user_id);
+  }
+
   dbus::Bus* bus_ = nullptr;
   dbus::ObjectProxy* proxy_ = nullptr;
 
   // Note: This should remain the last member so it'll be destroyed and
   // invalidate its weak pointers before any other members are destroyed.
   base::WeakPtrFactory<AuthPolicyClientImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(AuthPolicyClientImpl);
 };
 
 }  // namespace
 
 AuthPolicyClient::AuthPolicyClient() {}
 
 AuthPolicyClient::~AuthPolicyClient() {}
 
 // static
 AuthPolicyClient* AuthPolicyClient::Create() {
   return new AuthPolicyClientImpl();
 }
 
 }  // namespace chromeos