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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/browser/pref_names.h"
     20 #include "extensions/common/extension.h"
     21 #include "extensions/common/manifest.h"
     22 #include "testing/gtest/include/gtest/gtest.h"
     23 
     24 using content::BrowserThread;
     25 
     26 namespace extensions {
     27 
     28 class ExternalPolicyLoaderTest : public testing::Test {
     29  public:
     30   ExternalPolicyLoaderTest() : ui_thread_(BrowserThread::UI, &loop_) {
     31   }
     32 
     33   virtual ~ExternalPolicyLoaderTest() {}
     34 
     35  private:
     36   // We need these to satisfy BrowserThread::CurrentlyOn(BrowserThread::UI)
     37   // checks in ExternalProviderImpl.
     38   base::MessageLoopForIO loop_;
     39   content::TestBrowserThread ui_thread_;
     40 };
     41 
     42 class MockExternalPolicyProviderVisitor
     43     : public ExternalProviderInterface::VisitorInterface {
     44  public:
     45   MockExternalPolicyProviderVisitor() {
     46   }
     47 
     48   // Initialize a provider with |policy_forcelist|, and check that it installs
     49   // exactly the extensions specified in |expected_extensions|.
     50   void Visit(const base::DictionaryValue& policy_forcelist,
     51              const std::set<std::string>& expected_extensions) {
     52     profile_.reset(new TestingProfile);
     53     profile_->GetTestingPrefService()->SetManagedPref(
     54         pref_names::kInstallForceList, policy_forcelist.DeepCopy());
     55     provider_.reset(new ExternalProviderImpl(
     56         this,
     57         new ExternalPolicyLoader(profile_.get()),
     58         profile_.get(),
     59         Manifest::INVALID_LOCATION,
     60         Manifest::EXTERNAL_POLICY_DOWNLOAD,
     61         Extension::NO_FLAGS));
     62 
     63     // Extensions will be removed from this list as they visited,
     64     // so it should be emptied by the end.
     65     expected_extensions_ = expected_extensions;
     66     provider_->VisitRegisteredExtension();
     67     EXPECT_TRUE(expected_extensions_.empty());
     68   }
     69 
     70   virtual bool OnExternalExtensionFileFound(const std::string& id,
     71                                             const Version* version,
     72                                             const base::FilePath& path,
     73                                             Manifest::Location unused,
     74                                             int unused2,
     75                                             bool unused3) OVERRIDE {
     76     ADD_FAILURE() << "There should be no external extensions from files.";
     77     return false;
     78   }
     79 
     80   virtual bool OnExternalExtensionUpdateUrlFound(
     81       const std::string& id,
     82       const std::string& install_parameter,
     83       const GURL& update_url,
     84       Manifest::Location location,
     85       int unused1,
     86       bool unused2) OVERRIDE {
     87     // Extension has the correct location.
     88     EXPECT_EQ(Manifest::EXTERNAL_POLICY_DOWNLOAD, location);
     89 
     90     // Provider returns the correct location when asked.
     91     Manifest::Location location1;
     92     scoped_ptr<Version> version1;
     93     provider_->GetExtensionDetails(id, &location1, &version1);
     94     EXPECT_EQ(Manifest::EXTERNAL_POLICY_DOWNLOAD, location1);
     95     EXPECT_FALSE(version1.get());
     96 
     97     // Remove the extension from our list.
     98     EXPECT_EQ(1U, expected_extensions_.erase(id));
     99     return true;
    100   }
    101 
    102   virtual void OnExternalProviderReady(
    103       const ExternalProviderInterface* provider) OVERRIDE {
    104     EXPECT_EQ(provider, provider_.get());
    105     EXPECT_TRUE(provider->IsReady());
    106   }
    107 
    108  private:
    109   std::set<std::string> expected_extensions_;
    110 
    111   scoped_ptr<TestingProfile> profile_;
    112 
    113   scoped_ptr<ExternalProviderImpl> provider_;
    114 
    115   DISALLOW_COPY_AND_ASSIGN(MockExternalPolicyProviderVisitor);
    116 };
    117 
    118 TEST_F(ExternalPolicyLoaderTest, PolicyIsParsed) {
    119   base::DictionaryValue forced_extensions;
    120   std::set<std::string> expected_extensions;
    121   extensions::ExternalPolicyLoader::AddExtension(
    122       &forced_extensions, "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
    123       "http://www.example.com/crx?a=5;b=6");
    124   expected_extensions.insert("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
    125   extensions::ExternalPolicyLoader::AddExtension(
    126       &forced_extensions, "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb",
    127       "https://clients2.google.com/service/update2/crx");
    128   expected_extensions.insert("bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb");
    129 
    130   MockExternalPolicyProviderVisitor mv;
    131   mv.Visit(forced_extensions, expected_extensions);
    132 }
    133 
    134 TEST_F(ExternalPolicyLoaderTest, InvalidEntriesIgnored) {
    135   base::DictionaryValue forced_extensions;
    136   std::set<std::string> expected_extensions;
    137 
    138   extensions::ExternalPolicyLoader::AddExtension(
    139       &forced_extensions, "cccccccccccccccccccccccccccccccc",
    140       "http://www.example.com/crx");
    141   expected_extensions.insert("cccccccccccccccccccccccccccccccc");
    142 
    143   // Add invalid entries.
    144   forced_extensions.SetString("invalid", "http://www.example.com/crx");
    145   forced_extensions.SetString("dddddddddddddddddddddddddddddddd",
    146                               std::string());
    147   forced_extensions.SetString("invalid", "bad");
    148 
    149   MockExternalPolicyProviderVisitor mv;
    150   mv.Visit(forced_extensions, expected_extensions);
    151 }
    152 
    153 }  // namespace extensions
    154