chrome/browser/extensions/api/screenlock_private/screenlock_private_api.cc

   1 // Copyright 2013 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 "chrome/browser/extensions/api/screenlock_private/screenlock_private_api.h"
   6
   7 #include "base/lazy_instance.h"
   8 #include "base/values.h"
   9 #include "chrome/browser/profiles/profile.h"
  10 #include "chrome/browser/signin/chrome_proximity_auth_client.h"
  11 #include "chrome/browser/signin/easy_unlock_service.h"
  12 #include "chrome/common/extensions/api/screenlock_private.h"
  13 #include "chrome/common/extensions/extension_constants.h"
  14 #include "components/proximity_auth/screenlock_bridge.h"
  15 #include "extensions/browser/app_window/app_window_registry.h"
  16 #include "extensions/browser/event_router.h"
  17
  18 namespace extensions {
  19
  20 namespace screenlock = api::screenlock_private;
  21
  22 namespace {
  23
  24 screenlock::AuthType FromLockHandlerAuthType(
  25     proximity_auth::ScreenlockBridge::LockHandler::AuthType auth_type) {
  26   switch (auth_type) {
  27     case proximity_auth::ScreenlockBridge::LockHandler::OFFLINE_PASSWORD:
  28       return screenlock::AUTH_TYPE_OFFLINEPASSWORD;
  29     case proximity_auth::ScreenlockBridge::LockHandler::NUMERIC_PIN:
  30       return screenlock::AUTH_TYPE_NUMERICPIN;
  31     case proximity_auth::ScreenlockBridge::LockHandler::USER_CLICK:
  32       return screenlock::AUTH_TYPE_USERCLICK;
  33     case proximity_auth::ScreenlockBridge::LockHandler::ONLINE_SIGN_IN:
  34       // Apps should treat forced online sign in same as system password.
  35       return screenlock::AUTH_TYPE_OFFLINEPASSWORD;
  36     case proximity_auth::ScreenlockBridge::LockHandler::EXPAND_THEN_USER_CLICK:
  37       // This type is used for public sessions, which do not support screen
  38       // locking.
  39       NOTREACHED();
  40       return screenlock::AUTH_TYPE_NONE;
  41     case proximity_auth::ScreenlockBridge::LockHandler::FORCE_OFFLINE_PASSWORD:
  42       return screenlock::AUTH_TYPE_OFFLINEPASSWORD;
  43   }
  44   NOTREACHED();
  45   return screenlock::AUTH_TYPE_OFFLINEPASSWORD;
  46 }
  47
  48 }  // namespace
  49
  50 ScreenlockPrivateGetLockedFunction::ScreenlockPrivateGetLockedFunction() {}
  51
  52 ScreenlockPrivateGetLockedFunction::~ScreenlockPrivateGetLockedFunction() {}
  53
  54 bool ScreenlockPrivateGetLockedFunction::RunAsync() {
  55   SetResult(new base::FundamentalValue(
  56       proximity_auth::ScreenlockBridge::Get()->IsLocked()));
  57   SendResponse(error_.empty());
  58   return true;
  59 }
  60
  61 ScreenlockPrivateSetLockedFunction::ScreenlockPrivateSetLockedFunction() {}
  62
  63 ScreenlockPrivateSetLockedFunction::~ScreenlockPrivateSetLockedFunction() {}
  64
  65 bool ScreenlockPrivateSetLockedFunction::RunAsync() {
  66   scoped_ptr<screenlock::SetLocked::Params> params(
  67       screenlock::SetLocked::Params::Create(*args_));
  68   EXTENSION_FUNCTION_VALIDATE(params.get());
  69   EasyUnlockService* service = EasyUnlockService::Get(GetProfile());
  70   if (params->locked) {
  71     if (extension()->id() == extension_misc::kEasyUnlockAppId &&
  72         AppWindowRegistry::Get(browser_context())
  73             ->GetAppWindowForAppAndKey(extension()->id(),
  74                                        "easy_unlock_pairing")) {
  75       // Mark the Easy Unlock behaviour on the lock screen as the one initiated
  76       // by the Easy Unlock setup app as a trial one.
  77       // TODO(tbarzic): Move this logic to a new easyUnlockPrivate function.
  78       service->SetTrialRun();
  79     }
  80     proximity_auth::ScreenlockBridge::Get()->Lock();
  81   } else {
  82     proximity_auth::ScreenlockBridge::Get()->Unlock(
  83         service->proximity_auth_client()->GetAuthenticatedUsername());
  84   }
  85   SendResponse(error_.empty());
  86   return true;
  87 }
  88
  89 ScreenlockPrivateAcceptAuthAttemptFunction::
  90     ScreenlockPrivateAcceptAuthAttemptFunction() {}
  91
  92 ScreenlockPrivateAcceptAuthAttemptFunction::
  93     ~ScreenlockPrivateAcceptAuthAttemptFunction() {}
  94
  95 bool ScreenlockPrivateAcceptAuthAttemptFunction::RunSync() {
  96   scoped_ptr<screenlock::AcceptAuthAttempt::Params> params(
  97       screenlock::AcceptAuthAttempt::Params::Create(*args_));
  98   EXTENSION_FUNCTION_VALIDATE(params.get());
  99
 100   Profile* profile = Profile::FromBrowserContext(browser_context());
 101   EasyUnlockService* service = EasyUnlockService::Get(profile);
 102   if (service)
 103     service->FinalizeUnlock(params->accept);
 104   return true;
 105 }
 106
 107 ScreenlockPrivateEventRouter::ScreenlockPrivateEventRouter(
 108     content::BrowserContext* context)
 109     : browser_context_(context) {
 110   proximity_auth::ScreenlockBridge::Get()->AddObserver(this);
 111 }
 112
 113 ScreenlockPrivateEventRouter::~ScreenlockPrivateEventRouter() {}
 114
 115 void ScreenlockPrivateEventRouter::OnScreenDidLock(
 116     proximity_auth::ScreenlockBridge::LockHandler::ScreenType screen_type) {
 117   DispatchEvent(events::SCREENLOCK_PRIVATE_ON_CHANGED,
 118                 screenlock::OnChanged::kEventName,
 119                 new base::FundamentalValue(true));
 120 }
 121
 122 void ScreenlockPrivateEventRouter::OnScreenDidUnlock(
 123     proximity_auth::ScreenlockBridge::LockHandler::ScreenType screen_type) {
 124   DispatchEvent(events::SCREENLOCK_PRIVATE_ON_CHANGED,
 125                 screenlock::OnChanged::kEventName,
 126                 new base::FundamentalValue(false));
 127 }
 128
 129 void ScreenlockPrivateEventRouter::OnFocusedUserChanged(
 130     const std::string& user_id) {
 131 }
 132
 133 void ScreenlockPrivateEventRouter::DispatchEvent(
 134     events::HistogramValue histogram_value,
 135     const std::string& event_name,
 136     base::Value* arg) {
 137   scoped_ptr<base::ListValue> args(new base::ListValue());
 138   if (arg)
 139     args->Append(arg);
 140   scoped_ptr<Event> event(new Event(histogram_value, event_name, args.Pass()));
 141   EventRouter::Get(browser_context_)->BroadcastEvent(event.Pass());
 142 }
 143
 144 static base::LazyInstance<
 145     BrowserContextKeyedAPIFactory<ScreenlockPrivateEventRouter>> g_factory =
 146     LAZY_INSTANCE_INITIALIZER;
 147
 148 // static
 149 BrowserContextKeyedAPIFactory<ScreenlockPrivateEventRouter>*
 150 ScreenlockPrivateEventRouter::GetFactoryInstance() {
 151   return g_factory.Pointer();
 152 }
 153
 154 void ScreenlockPrivateEventRouter::Shutdown() {
 155   proximity_auth::ScreenlockBridge::Get()->RemoveObserver(this);
 156 }
 157
 158 bool ScreenlockPrivateEventRouter::OnAuthAttempted(
 159     proximity_auth::ScreenlockBridge::LockHandler::AuthType auth_type,
 160     const std::string& value) {
 161   EventRouter* router = EventRouter::Get(browser_context_);
 162   if (!router->HasEventListener(screenlock::OnAuthAttempted::kEventName))
 163     return false;
 164
 165   scoped_ptr<base::ListValue> args(new base::ListValue());
 166   args->AppendString(screenlock::ToString(FromLockHandlerAuthType(auth_type)));
 167   args->AppendString(value);
 168
 169   scoped_ptr<Event> event(
 170       new Event(events::SCREENLOCK_PRIVATE_ON_AUTH_ATTEMPTED,
 171                 screenlock::OnAuthAttempted::kEventName, args.Pass()));
 172   router->BroadcastEvent(event.Pass());
 173   return true;
 174 }
 175
 176 }  // namespace extensions