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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 <string>
      6 
      7 #include "base/compiler_specific.h"
      8 #include "base/memory/scoped_ptr.h"
      9 #include "base/message_loop/message_loop.h"
     10 #include "base/values.h"
     11 #include "chrome/browser/chrome_notification_types.h"
     12 #include "chrome/browser/extensions/active_tab_permission_granter.h"
     13 #include "chrome/browser/extensions/tab_helper.h"
     14 #include "chrome/browser/profiles/profile.h"
     15 #include "chrome/browser/sessions/session_tab_helper.h"
     16 #include "chrome/common/extensions/features/feature_channel.h"
     17 #include "chrome/test/base/chrome_render_view_host_test_harness.h"
     18 #include "content/public/browser/browser_thread.h"
     19 #include "content/public/browser/navigation_details.h"
     20 #include "content/public/browser/navigation_entry.h"
     21 #include "content/public/browser/notification_service.h"
     22 #include "content/public/browser/notification_types.h"
     23 #include "content/public/browser/web_contents.h"
     24 #include "content/public/common/frame_navigate_params.h"
     25 #include "content/public/test/test_browser_thread.h"
     26 #include "extensions/browser/extension_registry.h"
     27 #include "extensions/common/extension.h"
     28 #include "extensions/common/extension_builder.h"
     29 #include "extensions/common/features/feature.h"
     30 #include "extensions/common/permissions/permissions_data.h"
     31 #include "extensions/common/value_builder.h"
     32 
     33 using base::DictionaryValue;
     34 using base::ListValue;
     35 using content::BrowserThread;
     36 using content::NavigationController;
     37 
     38 namespace extensions {
     39 namespace {
     40 
     41 scoped_refptr<const Extension> CreateTestExtension(
     42     const std::string& id,
     43     bool has_active_tab_permission,
     44     bool has_tab_capture_permission) {
     45   ListBuilder permissions;
     46   if (has_active_tab_permission)
     47     permissions.Append("activeTab");
     48   if (has_tab_capture_permission)
     49     permissions.Append("tabCapture");
     50   return ExtensionBuilder()
     51       .SetManifest(DictionaryBuilder()
     52           .Set("name", "Extension with ID " + id)
     53           .Set("version", "1.0")
     54           .Set("manifest_version", 2)
     55           .Set("permissions", permissions))
     56       .SetID(id)
     57       .Build();
     58 }
     59 
     60 enum PermittedFeature {
     61   PERMITTED_NONE,
     62   PERMITTED_SCRIPT_ONLY,
     63   PERMITTED_CAPTURE_ONLY,
     64   PERMITTED_BOTH
     65 };
     66 
     67 class ActiveTabTest : public ChromeRenderViewHostTestHarness {
     68  protected:
     69   ActiveTabTest()
     70       : current_channel(chrome::VersionInfo::CHANNEL_DEV),
     71         extension(CreateTestExtension("deadbeef", true, false)),
     72         another_extension(CreateTestExtension("feedbeef", true, false)),
     73         extension_without_active_tab(CreateTestExtension("badbeef",
     74                                                          false,
     75                                                          false)),
     76         extension_with_tab_capture(CreateTestExtension("cafebeef",
     77                                                        true,
     78                                                        true)) {}
     79 
     80   virtual void SetUp() OVERRIDE {
     81     ChromeRenderViewHostTestHarness::SetUp();
     82     TabHelper::CreateForWebContents(web_contents());
     83   }
     84 
     85   int tab_id() {
     86     return SessionTabHelper::IdForTab(web_contents());
     87   }
     88 
     89   ActiveTabPermissionGranter* active_tab_permission_granter() {
     90     return extensions::TabHelper::FromWebContents(web_contents())->
     91         active_tab_permission_granter();
     92   }
     93 
     94   bool IsAllowed(const scoped_refptr<const Extension>& extension,
     95                  const GURL& url) {
     96     return IsAllowed(extension, url, PERMITTED_BOTH, tab_id());
     97   }
     98 
     99   bool IsAllowed(const scoped_refptr<const Extension>& extension,
    100                  const GURL& url,
    101                  PermittedFeature feature) {
    102     return IsAllowed(extension, url, feature, tab_id());
    103   }
    104 
    105   bool IsAllowed(const scoped_refptr<const Extension>& extension,
    106                  const GURL& url,
    107                  PermittedFeature feature,
    108                  int tab_id) {
    109     const PermissionsData* permissions_data = extension->permissions_data();
    110     bool script = permissions_data->CanAccessPage(
    111         extension.get(), url, url, tab_id, -1, NULL);
    112     bool capture = HasTabsPermission(extension, tab_id) &&
    113                    permissions_data->CanCaptureVisiblePage(tab_id, NULL);
    114     switch (feature) {
    115       case PERMITTED_SCRIPT_ONLY:
    116         return script && !capture;
    117       case PERMITTED_CAPTURE_ONLY:
    118         return capture && !script;
    119       case PERMITTED_BOTH:
    120         return script && capture;
    121       case PERMITTED_NONE:
    122         return !script && !capture;
    123     }
    124     NOTREACHED();
    125     return false;
    126   }
    127 
    128   bool IsBlocked(const scoped_refptr<const Extension>& extension,
    129                  const GURL& url) {
    130     return IsBlocked(extension, url, tab_id());
    131   }
    132 
    133   bool IsBlocked(const scoped_refptr<const Extension>& extension,
    134                  const GURL& url,
    135                  int tab_id) {
    136     return IsAllowed(extension, url, PERMITTED_NONE, tab_id);
    137   }
    138 
    139   bool HasTabsPermission(const scoped_refptr<const Extension>& extension) {
    140     return HasTabsPermission(extension, tab_id());
    141   }
    142 
    143   bool HasTabsPermission(const scoped_refptr<const Extension>& extension,
    144                          int tab_id) {
    145     return extension->permissions_data()->HasAPIPermissionForTab(
    146         tab_id, APIPermission::kTab);
    147   }
    148 
    149   bool IsGrantedForTab(const Extension* extension,
    150                        const content::WebContents* web_contents) {
    151     return extension->permissions_data()->HasAPIPermissionForTab(
    152         SessionTabHelper::IdForTab(web_contents), APIPermission::kTab);
    153   }
    154 
    155   // TODO(justinlin): Remove when tabCapture is moved to stable.
    156   ScopedCurrentChannel current_channel;
    157 
    158   // An extension with the activeTab permission.
    159   scoped_refptr<const Extension> extension;
    160 
    161   // Another extension with activeTab (for good measure).
    162   scoped_refptr<const Extension> another_extension;
    163 
    164   // An extension without the activeTab permission.
    165   scoped_refptr<const Extension> extension_without_active_tab;
    166 
    167   // An extension with both the activeTab and tabCapture permission.
    168   scoped_refptr<const Extension> extension_with_tab_capture;
    169 };
    170 
    171 TEST_F(ActiveTabTest, GrantToSinglePage) {
    172   GURL google("http://www.google.com");
    173   NavigateAndCommit(google);
    174 
    175   // No access unless it's been granted.
    176   EXPECT_TRUE(IsBlocked(extension, google));
    177   EXPECT_TRUE(IsBlocked(another_extension, google));
    178   EXPECT_TRUE(IsBlocked(extension_without_active_tab, google));
    179 
    180   EXPECT_FALSE(HasTabsPermission(extension));
    181   EXPECT_FALSE(HasTabsPermission(another_extension));
    182   EXPECT_FALSE(HasTabsPermission(extension_without_active_tab));
    183 
    184   active_tab_permission_granter()->GrantIfRequested(extension.get());
    185   active_tab_permission_granter()->GrantIfRequested(
    186       extension_without_active_tab.get());
    187 
    188   // Granted to extension and extension_without_active_tab, but the latter
    189   // doesn't have the activeTab permission so not granted.
    190   EXPECT_TRUE(IsAllowed(extension, google));
    191   EXPECT_TRUE(IsBlocked(another_extension, google));
    192   EXPECT_TRUE(IsBlocked(extension_without_active_tab, google));
    193 
    194   // Other subdomains shouldn't be given access.
    195   GURL mail_google("http://mail.google.com");
    196   EXPECT_TRUE(IsAllowed(extension, mail_google, PERMITTED_CAPTURE_ONLY));
    197   EXPECT_TRUE(IsBlocked(another_extension, mail_google));
    198   EXPECT_TRUE(IsBlocked(extension_without_active_tab, mail_google));
    199 
    200   // Reloading the page should clear the active permissions.
    201   Reload();
    202 
    203   EXPECT_TRUE(IsBlocked(extension, google));
    204   EXPECT_TRUE(IsBlocked(another_extension, google));
    205   EXPECT_TRUE(IsBlocked(extension_without_active_tab, google));
    206 
    207   EXPECT_FALSE(HasTabsPermission(extension));
    208   EXPECT_FALSE(HasTabsPermission(another_extension));
    209   EXPECT_FALSE(HasTabsPermission(extension_without_active_tab));
    210 
    211   // But they should still be able to be granted again.
    212   active_tab_permission_granter()->GrantIfRequested(extension.get());
    213 
    214   EXPECT_TRUE(IsAllowed(extension, google));
    215   EXPECT_TRUE(IsBlocked(another_extension, google));
    216   EXPECT_TRUE(IsBlocked(extension_without_active_tab, google));
    217 
    218   // And grant a few more times redundantly for good measure.
    219   active_tab_permission_granter()->GrantIfRequested(extension.get());
    220   active_tab_permission_granter()->GrantIfRequested(extension.get());
    221   active_tab_permission_granter()->GrantIfRequested(another_extension.get());
    222   active_tab_permission_granter()->GrantIfRequested(another_extension.get());
    223   active_tab_permission_granter()->GrantIfRequested(another_extension.get());
    224   active_tab_permission_granter()->GrantIfRequested(extension.get());
    225   active_tab_permission_granter()->GrantIfRequested(extension.get());
    226   active_tab_permission_granter()->GrantIfRequested(another_extension.get());
    227   active_tab_permission_granter()->GrantIfRequested(another_extension.get());
    228 
    229   EXPECT_TRUE(IsAllowed(extension, google));
    230   EXPECT_TRUE(IsAllowed(another_extension, google));
    231   EXPECT_TRUE(IsBlocked(extension_without_active_tab, google));
    232 
    233   // Navigating to a new URL should clear the active permissions.
    234   GURL chromium("http://www.chromium.org");
    235   NavigateAndCommit(chromium);
    236 
    237   EXPECT_TRUE(IsBlocked(extension, google));
    238   EXPECT_TRUE(IsBlocked(another_extension, google));
    239   EXPECT_TRUE(IsBlocked(extension_without_active_tab, google));
    240 
    241   EXPECT_TRUE(IsBlocked(extension, chromium));
    242   EXPECT_TRUE(IsBlocked(another_extension, chromium));
    243   EXPECT_TRUE(IsBlocked(extension_without_active_tab, chromium));
    244 
    245   EXPECT_FALSE(HasTabsPermission(extension));
    246   EXPECT_FALSE(HasTabsPermission(another_extension));
    247   EXPECT_FALSE(HasTabsPermission(extension_without_active_tab));
    248 
    249   // Should be able to grant to multiple extensions at the same time (if they
    250   // have the activeTab permission, of course).
    251   active_tab_permission_granter()->GrantIfRequested(extension.get());
    252   active_tab_permission_granter()->GrantIfRequested(another_extension.get());
    253   active_tab_permission_granter()->GrantIfRequested(
    254       extension_without_active_tab.get());
    255 
    256   EXPECT_TRUE(IsAllowed(extension, google, PERMITTED_CAPTURE_ONLY));
    257   EXPECT_TRUE(IsAllowed(another_extension, google, PERMITTED_CAPTURE_ONLY));
    258   EXPECT_TRUE(IsBlocked(extension_without_active_tab, google));
    259 
    260   EXPECT_TRUE(IsAllowed(extension, chromium));
    261   EXPECT_TRUE(IsAllowed(another_extension, chromium));
    262   EXPECT_TRUE(IsBlocked(extension_without_active_tab, chromium));
    263 
    264   // Should be able to go back to URLs that were previously cleared.
    265   NavigateAndCommit(google);
    266 
    267   active_tab_permission_granter()->GrantIfRequested(extension.get());
    268   active_tab_permission_granter()->GrantIfRequested(another_extension.get());
    269   active_tab_permission_granter()->GrantIfRequested(
    270       extension_without_active_tab.get());
    271 
    272   EXPECT_TRUE(IsAllowed(extension, google));
    273   EXPECT_TRUE(IsAllowed(another_extension, google));
    274   EXPECT_TRUE(IsBlocked(extension_without_active_tab, google));
    275 
    276   EXPECT_TRUE(IsAllowed(extension, chromium, PERMITTED_CAPTURE_ONLY));
    277   EXPECT_TRUE(IsAllowed(another_extension, chromium, PERMITTED_CAPTURE_ONLY));
    278   EXPECT_TRUE(IsBlocked(extension_without_active_tab, chromium));
    279 };
    280 
    281 TEST_F(ActiveTabTest, Uninstalling) {
    282   // Some semi-arbitrary setup.
    283   GURL google("http://www.google.com");
    284   NavigateAndCommit(google);
    285 
    286   active_tab_permission_granter()->GrantIfRequested(extension.get());
    287 
    288   EXPECT_TRUE(IsGrantedForTab(extension.get(), web_contents()));
    289   EXPECT_TRUE(IsAllowed(extension, google));
    290 
    291   // Uninstalling the extension should clear its tab permissions.
    292   ExtensionRegistry* registry =
    293       ExtensionRegistry::Get(web_contents()->GetBrowserContext());
    294   registry->TriggerOnUnloaded(extension.get(),
    295                               UnloadedExtensionInfo::REASON_DISABLE);
    296 
    297   // Note: can't EXPECT_FALSE(IsAllowed) here because uninstalled extensions
    298   // are just that... considered to be uninstalled, and the manager might
    299   // just ignore them from here on.
    300 
    301   // Granting the extension again should give them back.
    302   active_tab_permission_granter()->GrantIfRequested(extension.get());
    303 
    304   EXPECT_TRUE(IsGrantedForTab(extension.get(), web_contents()));
    305   EXPECT_TRUE(IsAllowed(extension, google));
    306 }
    307 
    308 TEST_F(ActiveTabTest, OnlyActiveTab) {
    309   GURL google("http://www.google.com");
    310   NavigateAndCommit(google);
    311 
    312   active_tab_permission_granter()->GrantIfRequested(extension.get());
    313 
    314   EXPECT_TRUE(IsAllowed(extension, google, PERMITTED_BOTH, tab_id()));
    315   EXPECT_TRUE(IsBlocked(extension, google, tab_id() + 1));
    316   EXPECT_FALSE(HasTabsPermission(extension, tab_id() + 1));
    317 }
    318 
    319 TEST_F(ActiveTabTest, NavigateInPage) {
    320   GURL google("http://www.google.com");
    321   NavigateAndCommit(google);
    322 
    323   active_tab_permission_granter()->GrantIfRequested(extension.get());
    324 
    325   // Perform an in-page navigation. The extension should not lose the temporary
    326   // permission.
    327   GURL google_h1("http://www.google.com#h1");
    328   NavigateAndCommit(google_h1);
    329 
    330   EXPECT_TRUE(IsAllowed(extension, google));
    331   EXPECT_TRUE(IsAllowed(extension, google_h1));
    332 
    333   GURL chromium("http://www.chromium.org");
    334   NavigateAndCommit(chromium);
    335 
    336   EXPECT_FALSE(IsAllowed(extension, google));
    337   EXPECT_FALSE(IsAllowed(extension, google_h1));
    338   EXPECT_FALSE(IsAllowed(extension, chromium));
    339 
    340   active_tab_permission_granter()->GrantIfRequested(extension.get());
    341 
    342   EXPECT_FALSE(IsAllowed(extension, google));
    343   EXPECT_FALSE(IsAllowed(extension, google_h1));
    344   EXPECT_TRUE(IsAllowed(extension, chromium));
    345 
    346   GURL chromium_h1("http://www.chromium.org#h1");
    347   NavigateAndCommit(chromium_h1);
    348 
    349   EXPECT_FALSE(IsAllowed(extension, google));
    350   EXPECT_FALSE(IsAllowed(extension, google_h1));
    351   EXPECT_TRUE(IsAllowed(extension, chromium));
    352   EXPECT_TRUE(IsAllowed(extension, chromium_h1));
    353 
    354   Reload();
    355 
    356   EXPECT_FALSE(IsAllowed(extension, google));
    357   EXPECT_FALSE(IsAllowed(extension, google_h1));
    358   EXPECT_FALSE(IsAllowed(extension, chromium));
    359   EXPECT_FALSE(IsAllowed(extension, chromium_h1));
    360 }
    361 
    362 TEST_F(ActiveTabTest, ChromeUrlGrants) {
    363   GURL internal("chrome://version");
    364   NavigateAndCommit(internal);
    365   active_tab_permission_granter()->GrantIfRequested(
    366       extension_with_tab_capture.get());
    367   // Do not grant tabs/hosts permissions for tab.
    368   EXPECT_TRUE(IsAllowed(extension_with_tab_capture, internal,
    369                         PERMITTED_CAPTURE_ONLY));
    370   const PermissionsData* permissions_data =
    371       extension_with_tab_capture->permissions_data();
    372   EXPECT_TRUE(permissions_data->HasAPIPermissionForTab(
    373       tab_id(), APIPermission::kTabCaptureForTab));
    374 
    375   EXPECT_TRUE(IsBlocked(extension_with_tab_capture, internal, tab_id() + 1));
    376   EXPECT_FALSE(permissions_data->HasAPIPermissionForTab(
    377       tab_id() + 1, APIPermission::kTabCaptureForTab));
    378 }
    379 
    380 }  // namespace
    381 }  // namespace extensions
    382