Start implementing an auth flow for platform apps to be able to do auth

chrome/browser/extensions/api/identity/web_auth_flow_unittest.cc

+// 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.
+
+#include "base/message_loop.h"
+#include "chrome/browser/extensions/api/identity/web_auth_flow.h"
+#include "chrome/browser/ui/extensions/web_auth_flow_window.h"
+#include "chrome/test/base/chrome_render_view_host_test_harness.h"
+#include "chrome/test/base/testing_profile.h"
+#include "content/public/browser/browser_thread.h"
+#include "content/test/test_browser_thread.h"
+#include "content/test/web_contents_tester.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+using content::BrowserContext;
+using content::BrowserThread;
+using content::TestBrowserThread;
+using content::WebContents;
+using content::WebContentsDelegate;
+using content::WebContentsTester;
+using extensions::WebAuthFlow;
+using testing::Return;
+using testing::ReturnRef;
+
+namespace {
+
+class MockDelegate : public WebAuthFlow::Delegate {
+ public:
+  MOCK_METHOD1(OnAuthFlowSuccess, void(const std::string& redirect_url));
+  MOCK_METHOD0(OnAuthFlowFailure, void());
+};
+
+class MockWebAuthFlowWindow : public WebAuthFlowWindow {
+ public:
+  MockWebAuthFlowWindow() : WebAuthFlowWindow(NULL, NULL, NULL) {
+  }
+
+  virtual void Show() OVERRIDE {
+    // Do nothing in tests.
+  }
+};
+
+class MockWebAuthFlow : public WebAuthFlow {
+ public:
+  MockWebAuthFlow(
+     WebAuthFlow::Delegate* delegate,
+     BrowserContext* browser_context,
+     const std::string& extension_id,
+     const GURL& provider_url)
+     : WebAuthFlow(delegate,
+                   browser_context,
+                   extension_id,
+                   provider_url),
+       browser_context_(browser_context),
+       web_contents_(NULL),
+       window_(NULL) { }
+
+  virtual WebContents* CreateWebContents() OVERRIDE {
+    CHECK(!web_contents_);
+    web_contents_ = WebContentsTester::CreateTestWebContents(
+        browser_context_, NULL);
+    return web_contents_;
+  }
+
+  virtual WebAuthFlowWindow* CreateAuthWindow() OVERRIDE {
+    CHECK(!window_);
+    window_ = new MockWebAuthFlowWindow();
+    return window_;
+  }
+
+  WebContents* contents() {
+    return web_contents_;
+  }
+
+  WebContentsTester* contents_tester() {
+    return WebContentsTester::For(web_contents_);
+  }
+
+  MockWebAuthFlowWindow& window() {
+    return *window_;
+  }
+
+  bool HasWindow() const {
+    return window_ != NULL;
+  }
+
+  virtual ~MockWebAuthFlow() { }
+
+ private:
+  BrowserContext* browser_context_;
+  WebContents* web_contents_;
+  MockWebAuthFlowWindow* window_;
+};
+
+}  // namespace
+
+class WebAuthFlowTest : public ChromeRenderViewHostTestHarness {
+ protected:
+  WebAuthFlowTest()
+      : thread_(BrowserThread::UI, &message_loop_) {
+  }
+
+  virtual void SetUp() {
+    ChromeRenderViewHostTestHarness::SetUp();
+  }
+
+  void CreateAuthFlow(const std::string& extension_id, const GURL& url) {
+    flow_.reset(new MockWebAuthFlow(&delegate_, profile(), extension_id, url));
+  }
+
+  MockWebAuthFlow& flow() {
+    return *flow_.get();
+  }
+
+  WebAuthFlow* flow_base() {
+    return flow_.get();
+  }
+
+  void CallOnClose() {
+    flow_base()->OnClose();
+  }
+
+  bool CallIsValidRedirectUrl(const GURL& url) {
+    return flow_base()->IsValidRedirectUrl(url);
+  }
+
+  TestBrowserThread thread_;
+  MockDelegate delegate_;
+  scoped_ptr<MockWebAuthFlow> flow_;
+};
+
+TEST_F(WebAuthFlowTest, SilentRedirectToChromiumAppUrl) {
+  std::string ext_id = "abcdefghij";
+  GURL url("https://accounts.google.com/o/oauth2/auth");
+  GURL result("https://abcdefghij.chromiumapp.org/google_cb");
+
+  CreateAuthFlow(ext_id, url);
+  EXPECT_CALL(delegate_, OnAuthFlowSuccess(result.spec())).Times(1);
+  flow_->Start();
+  flow_->contents_tester()->NavigateAndCommit(result);
+}
+
+TEST_F(WebAuthFlowTest, SilentRedirectToChromeExtensionSchemeUrl) {
+  std::string ext_id = "abcdefghij";
+  GURL url("https://accounts.google.com/o/oauth2/auth");
+  GURL result("chrome-extension://abcdefghij/google_cb");
+
+  CreateAuthFlow(ext_id, url);
+  EXPECT_CALL(delegate_, OnAuthFlowSuccess(result.spec())).Times(1);
+  flow_->Start();
+  flow_->contents_tester()->NavigateAndCommit(result);
+}
+
+TEST_F(WebAuthFlowTest, UIResultsInSuccess) {
+  std::string ext_id = "abcdefghij";
+  GURL url("https://accounts.google.com/o/oauth2/auth");
+  GURL result("chrome-extension://abcdefghij/google_cb");
+
+  CreateAuthFlow(ext_id, url);
+  EXPECT_CALL(delegate_, OnAuthFlowSuccess(result.spec())).Times(1);
+  flow_->Start();
+  flow_->contents_tester()->TestSetIsLoading(false);
+  EXPECT_TRUE(flow_->HasWindow());
+  flow_->contents_tester()->NavigateAndCommit(result);
+}
+
+TEST_F(WebAuthFlowTest, UIClosedByUser) {
+  std::string ext_id = "abcdefghij";
+  GURL url("https://accounts.google.com/o/oauth2/auth");
+  GURL result("chrome-extension://abcdefghij/google_cb");
+
+  CreateAuthFlow(ext_id, url);
+  EXPECT_CALL(delegate_, OnAuthFlowFailure()).Times(1);
+  flow_->Start();
+  flow_->contents_tester()->TestSetIsLoading(false);
+  EXPECT_TRUE(flow_->HasWindow());
+  CallOnClose();
+}
+
+TEST_F(WebAuthFlowTest, IsValidRedirectUrl) {
+  std::string ext_id = "abcdefghij";
+  GURL url("https://accounts.google.com/o/oauth2/auth");
+
+  CreateAuthFlow(ext_id, url);
+
+  // Positive cases.
+  EXPECT_TRUE(CallIsValidRedirectUrl(
+      GURL("https://abcdefghij.chromiumapp.org/")));
+  EXPECT_TRUE(CallIsValidRedirectUrl(
+      GURL("https://abcdefghij.chromiumapp.org/callback")));
+  EXPECT_TRUE(CallIsValidRedirectUrl(
+      GURL("chrome-extension://abcdefghij/")));
+  EXPECT_TRUE(CallIsValidRedirectUrl(
+      GURL("chrome-extension://abcdefghij/callback")));
+
+  // Negative cases.
+  EXPECT_FALSE(CallIsValidRedirectUrl(
+      GURL("https://www.foo.com/")));
+  // http scheme is not allowed.
+  EXPECT_FALSE(CallIsValidRedirectUrl(
+      GURL("http://abcdefghij.chromiumapp.org/callback")));
+  EXPECT_FALSE(CallIsValidRedirectUrl(
+      GURL("https://abcd.chromiumapp.org/callback")));
+  EXPECT_FALSE(CallIsValidRedirectUrl(
+      GURL("chrome-extension://abcd/callback")));
+  EXPECT_FALSE(CallIsValidRedirectUrl(
+      GURL("chrome-extension://abcdefghijkl/")));
+}