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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include <set>
      6 #include <string>
      7 
      8 #include "base/logging.h"
      9 #include "base/message_loop/message_loop.h"
     10 #include "base/values.h"
     11 #include "base/version.h"
     12 #include "chrome/browser/extensions/external_policy_loader.h"
     13 #include "chrome/browser/extensions/external_provider_impl.h"
     14 #include "chrome/common/pref_names.h"
     15 #include "chrome/test/base/testing_pref_service_syncable.h"
     16 #include "chrome/test/base/testing_profile.h"
     17 #include "content/public/test/test_browser_thread.h"
     18 #include "extensions/browser/external_provider_interface.h"
     19 #include "extensions/common/extension.h"
     20 #include "extensions/common/manifest.h"
     21 #include "testing/gtest/include/gtest/gtest.h"
     22 
     23 using content::BrowserThread;
     24 
     25 namespace extensions {
     26 
     27 class ExternalPolicyLoaderTest : public testing::Test {
     28  public:
     29   ExternalPolicyLoaderTest()
     30       : loop_(base::MessageLoop::TYPE_IO),
     31         ui_thread_(BrowserThread::UI, &loop_) {
     32   }
     33 
     34   virtual ~ExternalPolicyLoaderTest() {}
     35 
     36  private:
     37   // We need these to satisfy BrowserThread::CurrentlyOn(BrowserThread::UI)
     38   // checks in ExternalProviderImpl.
     39   base::MessageLoop loop_;
     40   content::TestBrowserThread ui_thread_;
     41 };
     42 
     43 class MockExternalPolicyProviderVisitor
     44     : public ExternalProviderInterface::VisitorInterface {
     45  public:
     46   MockExternalPolicyProviderVisitor() {
     47   }
     48 
     49   // Initialize a provider with |policy_forcelist|, and check that it installs
     50   // exactly the extensions specified in |expected_extensions|.
     51   void Visit(const base::DictionaryValue& policy_forcelist,
     52              const std::set<std::string>& expected_extensions) {
     53     profile_.reset(new TestingProfile);
     54     profile_->GetTestingPrefService()->SetManagedPref(
     55         prefs::kExtensionInstallForceList,
     56         policy_forcelist.DeepCopy());
     57     provider_.reset(new ExternalProviderImpl(
     58         this,
     59         new ExternalPolicyLoader(profile_.get()),
     60         profile_.get(),
     61         Manifest::INVALID_LOCATION,
     62         Manifest::EXTERNAL_POLICY_DOWNLOAD,
     63         Extension::NO_FLAGS));
     64 
     65     // Extensions will be removed from this list as they visited,
     66     // so it should be emptied by the end.
     67     expected_extensions_ = expected_extensions;
     68     provider_->VisitRegisteredExtension();
     69     EXPECT_TRUE(expected_extensions_.empty());
     70   }
     71 
     72   virtual bool OnExternalExtensionFileFound(const std::string& id,
     73                                             const Version* version,
     74                                             const base::FilePath& path,
     75                                             Manifest::Location unused,
     76                                             int unused2,
     77                                             bool unused3) OVERRIDE {
     78     ADD_FAILURE() << "There should be no external extensions from files.";
     79     return false;
     80   }
     81 
     82   virtual bool OnExternalExtensionUpdateUrlFound(
     83       const std::string& id, const GURL& update_url,
     84       Manifest::Location location, int unused1, bool unused2) OVERRIDE {
     85     // Extension has the correct location.
     86     EXPECT_EQ(Manifest::EXTERNAL_POLICY_DOWNLOAD, location);
     87 
     88     // Provider returns the correct location when asked.
     89     Manifest::Location location1;
     90     scoped_ptr<Version> version1;
     91     provider_->GetExtensionDetails(id, &location1, &version1);
     92     EXPECT_EQ(Manifest::EXTERNAL_POLICY_DOWNLOAD, location1);
     93     EXPECT_FALSE(version1.get());
     94 
     95     // Remove the extension from our list.
     96     EXPECT_EQ(1U, expected_extensions_.erase(id));
     97     return true;
     98   }
     99 
    100   virtual void OnExternalProviderReady(
    101       const ExternalProviderInterface* provider) OVERRIDE {
    102     EXPECT_EQ(provider, provider_.get());
    103     EXPECT_TRUE(provider->IsReady());
    104   }
    105 
    106  private:
    107   std::set<std::string> expected_extensions_;
    108 
    109   scoped_ptr<TestingProfile> profile_;
    110 
    111   scoped_ptr<ExternalProviderImpl> provider_;
    112 
    113   DISALLOW_COPY_AND_ASSIGN(MockExternalPolicyProviderVisitor);
    114 };
    115 
    116 TEST_F(ExternalPolicyLoaderTest, PolicyIsParsed) {
    117   base::DictionaryValue forced_extensions;
    118   std::set<std::string> expected_extensions;
    119   extensions::ExternalPolicyLoader::AddExtension(
    120       &forced_extensions, "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
    121       "http://www.example.com/crx?a=5;b=6");
    122   expected_extensions.insert("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
    123   extensions::ExternalPolicyLoader::AddExtension(
    124       &forced_extensions, "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb",
    125       "https://clients2.google.com/service/update2/crx");
    126   expected_extensions.insert("bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb");
    127 
    128   MockExternalPolicyProviderVisitor mv;
    129   mv.Visit(forced_extensions, expected_extensions);
    130 }
    131 
    132 TEST_F(ExternalPolicyLoaderTest, InvalidEntriesIgnored) {
    133   base::DictionaryValue forced_extensions;
    134   std::set<std::string> expected_extensions;
    135 
    136   extensions::ExternalPolicyLoader::AddExtension(
    137       &forced_extensions, "cccccccccccccccccccccccccccccccc",
    138       "http://www.example.com/crx");
    139   expected_extensions.insert("cccccccccccccccccccccccccccccccc");
    140 
    141   // Add invalid entries.
    142   forced_extensions.SetString("invalid", "http://www.example.com/crx");
    143   forced_extensions.SetString("dddddddddddddddddddddddddddddddd",
    144                               std::string());
    145   forced_extensions.SetString("invalid", "bad");
    146 
    147   MockExternalPolicyProviderVisitor mv;
    148   mv.Visit(forced_extensions, expected_extensions);
    149 }
    150 
    151 }  // namespace extensions
    152