Obfuscated Gaia ID fetcher

chrome/browser/extensions/api/push_messaging/obfuscated_gaia_id_fetcher.h

+// Copyright (c) 2012 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.
+
+#ifndef CHROME_BROWSER_EXTENSIONS_API_PUSH_MESSAGING_OBFUSCATED_GAIA_ID_FETCHER_H_
+#define CHROME_BROWSER_EXTENSIONS_API_PUSH_MESSAGING_OBFUSCATED_GAIA_ID_FETCHER_H_
+
+#include <string>
+
+#include "chrome/common/net/gaia/oauth2_api_call_flow.h"
+
+class GoogleServiceAuthError;
+
+namespace content {
+class URLFetcher;
+}
+
+namespace net {
+class URLRequestContextGetter;
+}
+
+namespace extensions {
+
+// Fetches obfuscated Gaia ID of the Google Account that is logged in to Chrome.
+// This starts an asynchronous operation which reports success to the delegate.
+// Call "Start()" to start the async fetch.
+class ObfuscatedGaiaIdFetcher : public OAuth2ApiCallFlow {
+ public:
+  // Delegate interface that is called when obfuscated Gaia id fetch
+  // succeeds or fails.
+  class Delegate {
+   public:
+    virtual void OnObfuscatedGaiaIdFetchSuccess(
+        const std::string& obfuscated_id) {}
+    virtual void OnObfuscatedGaiaIdFetchFailure(
+        const GoogleServiceAuthError& error) {}
+    virtual ~Delegate() {}
+  };
+
+  // TODO(petewil): Someday let's make a profile keyed service to cache
+  // the Gaia ID.
+
+  ObfuscatedGaiaIdFetcher(net::URLRequestContextGetter* context,
+                          Delegate* delegate,
+                          const std::string& refresh_token);
+  virtual ~ObfuscatedGaiaIdFetcher();
+
+ protected:
+  // OAuth2ApiCallFlow implementation
+  virtual GURL CreateApiCallUrl() OVERRIDE;
+  virtual std::string CreateApiCallBody() OVERRIDE;
+  virtual void ProcessApiCallSuccess(
+      const net::URLFetcher* source) OVERRIDE;
+  virtual void ProcessApiCallFailure(
+      const net::URLFetcher* source) OVERRIDE;
+  virtual void ProcessNewAccessToken(const std::string& access_token) OVERRIDE;
+  virtual void ProcessMintAccessTokenFailure(
+      const GoogleServiceAuthError& error) OVERRIDE;
+
+ private:
+  FRIEND_TEST_ALL_PREFIXES(ObfuscatedGaiaIdFetcherTest, SetUp);
+  FRIEND_TEST_ALL_PREFIXES(ObfuscatedGaiaIdFetcherTest, ParseResponse);
+  FRIEND_TEST_ALL_PREFIXES(ObfuscatedGaiaIdFetcherTest, ProcessApiCallSuccess);
+  FRIEND_TEST_ALL_PREFIXES(ObfuscatedGaiaIdFetcherTest, ProcessApiCallFailure);
+
+  void ReportSuccess(const std::string& obfuscated_id);
+  void ReportFailure(const GoogleServiceAuthError& error);
+
+  // Get the obfuscated Gaia ID out of the response body.
+  static bool ParseResponse(
+      const std::string& data, std::string* obfuscated_id);
+
+  // Unowned pointer to the delegate.  Normally the delegate owns
+  // this fetcher class.
+  Delegate* delegate_;
+
+  DISALLOW_COPY_AND_ASSIGN(ObfuscatedGaiaIdFetcher);
+};
+
+}  // namespace extensions
+
+#endif  // CHROME_BROWSER_EXTENSIONS_API_PUSH_MESSAGING_OBFUSCATED_GAIA_ID_FETCHER_H_