//device/bluetooth support for attribute properties and permissions.

device/bluetooth/dbus/fake_bluetooth_gatt_characteristic_service_provider.cc

 // Copyright 2014 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 "device/bluetooth/dbus/fake_bluetooth_gatt_characteristic_service_provider.h"
 
+#include <algorithm>
+#include <iterator>
+
 #include "base/callback.h"
 #include "base/logging.h"
 #include "base/strings/string_util.h"
+#include "device/bluetooth/dbus/bluetooth_gatt_attribute_value_delegate.h"
 #include "device/bluetooth/dbus/bluez_dbus_manager.h"
 #include "device/bluetooth/dbus/fake_bluetooth_gatt_manager_client.h"
+#include "third_party/cros_system_api/dbus/service_constants.h"
 
 namespace bluez {
 
+namespace {
+
+bool CanWrite(const std::vector<std::string>& flags) {
+  if (find(flags.begin(), flags.end(),
+           bluetooth_gatt_characteristic::kFlagWrite) != flags.end())
+    return true;
+  if (find(flags.begin(), flags.end(),
+           bluetooth_gatt_characteristic::kFlagWriteWithoutResponse) !=
+      flags.end())
+    return true;
+  if (find(flags.begin(), flags.end(),
+           bluetooth_gatt_characteristic::kFlagReliableWrite) != flags.end())
+    return true;
+  if (find(flags.begin(), flags.end(),
+           bluetooth_gatt_characteristic::kFlagEncryptWrite) != flags.end())
+    return true;
+  if (find(flags.begin(), flags.end(),
+           bluetooth_gatt_characteristic::kFlagEncryptAuthenticatedWrite) !=
+      flags.end())
+    return true;
+  return false;
+}
+
+bool CanRead(const std::vector<std::string>& flags) {
+  if (find(flags.begin(), flags.end(),
+           bluetooth_gatt_characteristic::kFlagRead) != flags.end())
+    return true;
+  if (find(flags.begin(), flags.end(),
+           bluetooth_gatt_characteristic::kFlagEncryptRead) != flags.end())
+    return true;
+  if (find(flags.begin(), flags.end(),
+           bluetooth_gatt_characteristic::kFlagEncryptAuthenticatedRead) !=
+      flags.end())
+    return true;
+  return false;
+}
+
+}  // namespace
+
 FakeBluetoothGattCharacteristicServiceProvider::
     FakeBluetoothGattCharacteristicServiceProvider(
         const dbus::ObjectPath& object_path,
         std::unique_ptr<BluetoothGattAttributeValueDelegate> delegate,
         const std::string& uuid,
         const std::vector<std::string>& flags,
         const dbus::ObjectPath& service_path)
     : object_path_(object_path),
       uuid_(uuid),
+      flags_(flags),
       service_path_(service_path),
       delegate_(std::move(delegate)) {
   VLOG(1) << "Creating Bluetooth GATT characteristic: " << object_path_.value();
 
   DCHECK(object_path_.IsValid());
   DCHECK(service_path_.IsValid());
   DCHECK(!uuid.empty());
   DCHECK(delegate_);
   DCHECK(base::StartsWith(object_path_.value(), service_path_.value() + "/",
                           base::CompareCase::SENSITIVE));
 
-  // TODO(rkc): Do something with |flags|.
   FakeBluetoothGattManagerClient* fake_bluetooth_gatt_manager_client =
       static_cast<FakeBluetoothGattManagerClient*>(
           bluez::BluezDBusManager::Get()->GetBluetoothGattManagerClient());
   fake_bluetooth_gatt_manager_client->RegisterCharacteristicServiceProvider(
       this);
 }
 
 FakeBluetoothGattCharacteristicServiceProvider::
     ~FakeBluetoothGattCharacteristicServiceProvider() {
   VLOG(1) << "Cleaning up Bluetooth GATT characteristic: "
@@ skipping 20 matching lines @@
   // Check if this characteristic is registered.
   FakeBluetoothGattManagerClient* fake_bluetooth_gatt_manager_client =
       static_cast<FakeBluetoothGattManagerClient*>(
           bluez::BluezDBusManager::Get()->GetBluetoothGattManagerClient());
   if (!fake_bluetooth_gatt_manager_client->IsServiceRegistered(service_path_)) {
     VLOG(1) << "GATT characteristic not registered.";
     error_callback.Run();
     return;
   }
 
+  if (!CanRead(flags_)) {
+    VLOG(1) << "GATT characteristic not readable.";
+    error_callback.Run();
+    return;
+  }
+
   // Pass on to the delegate.
   DCHECK(delegate_);
   delegate_->GetValue(callback, error_callback);
 }
 
 void FakeBluetoothGattCharacteristicServiceProvider::SetValue(
     const std::vector<uint8_t>& value,
     const base::Closure& callback,
     const device::BluetoothLocalGattService::Delegate::ErrorCallback&
         error_callback) {
   VLOG(1) << "GATT characteristic value Set request: " << object_path_.value()
           << " UUID: " << uuid_;
   // Check if this characteristic is registered.
   FakeBluetoothGattManagerClient* fake_bluetooth_gatt_manager_client =
       static_cast<FakeBluetoothGattManagerClient*>(
           bluez::BluezDBusManager::Get()->GetBluetoothGattManagerClient());
   if (!fake_bluetooth_gatt_manager_client->IsServiceRegistered(service_path_)) {
     VLOG(1) << "GATT characteristic not registered.";
     error_callback.Run();
     return;
   }
 
+  if (!CanWrite(flags_)) {
+    VLOG(1) << "GATT characteristic not writeable.";
+    error_callback.Run();
+    return;
+  }
+
   // Pass on to the delegate.
   DCHECK(delegate_);
   delegate_->SetValue(value, callback, error_callback);
 }
 
 const dbus::ObjectPath&
 FakeBluetoothGattCharacteristicServiceProvider::object_path() const {
   return object_path_;
 }
 
 }  // namespace bluez