Store Bluetooth permissions in website settings

chrome/browser/ui/bluetooth/bluetooth_permission_context.cc

+// Copyright 2016 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 "chrome/browser/ui/bluetooth/bluetooth_permission_context.h"
+
+#include <utility>
+
+#include "base/bind.h"
+#include "base/values.h"
+#include "device/bluetooth/bluetooth_adapter.h"
+#include "device/bluetooth/bluetooth_adapter_factory.h"
+#include "device/bluetooth/bluetooth_device.h"
+#include "device/bluetooth/bluetooth_uuid.h"
+
+namespace {
+
+const char kDeviceAddressKey[] = "device-address";
+const char kDeviceNameKey[] = "device-name";
+const char kDeviceUUIDsKey[] = "device-uuids";
+
+const base::DictionaryValue* FindForDevice(
+    const std::vector<scoped_ptr<base::DictionaryValue>>& device_list,
+    const std::string& device_address) {
+  for (const scoped_ptr<base::DictionaryValue>& device_dict : device_list) {
+    std::string tmp_device_address;
+    if (device_dict->GetString(kDeviceAddressKey, &tmp_device_address) &&
+        tmp_device_address == device_address) {
+      return device_dict.get();
+    }
+  }
+  return nullptr;
+}
+
+}  // namespace
+
+BluetoothPermissionContext::BluetoothPermissionContext(Profile* profile)
+    : ChooserContextBase(profile, CONTENT_SETTINGS_TYPE_BLUETOOTH_CHOOSER_DATA),
+      weak_ptr_factory_(this) {
+  device::BluetoothAdapterFactory::GetAdapter(
+      base::Bind(&BluetoothPermissionContext::OnGetAdapter,
+                 weak_ptr_factory_.GetWeakPtr()));
+}
+
+BluetoothPermissionContext::~BluetoothPermissionContext() {}
+
+void BluetoothPermissionContext::GrantDevicePermission(
+    const GURL& requesting_origin,
+    const GURL& embedding_origin,
+    const std::string& device_address) {
+  scoped_ptr<base::DictionaryValue> device_dict(new base::DictionaryValue());
+  device_dict->SetString(kDeviceAddressKey, device_address);
+  device::BluetoothDevice* device = adapter_->GetDevice(device_address);
+  DCHECK(device);
+  device_dict->SetString(kDeviceNameKey, device->GetName());
+  scoped_ptr<base::ListValue> device_uuids_list(new base::ListValue());
+  device::BluetoothDevice::UUIDList uuid_list = device->GetUUIDs();
+  for (const auto& uuid : uuid_list)
+    device_uuids_list->AppendString(uuid.value());
+  device_dict->Set(kDeviceUUIDsKey, std::move(device_uuids_list));
+
+  GrantObjectPermission(requesting_origin, embedding_origin,
+                        std::move(device_dict));
+}
+
+void BluetoothPermissionContext::RevokeDevicePermission(
+    const GURL& requesting_origin,
+    const GURL& embedding_origin,
+    const std::string& device_address) {
+  std::vector<scoped_ptr<base::DictionaryValue>> device_list =
+      GetGrantedObjects(requesting_origin, embedding_origin);
+  const base::DictionaryValue* entry =
+      FindForDevice(device_list, device_address);
+  if (entry)
+    RevokeObjectPermission(requesting_origin, embedding_origin, *entry);
+}
+
+std::vector<std::string> BluetoothPermissionContext::HasDevicePermission(
+    const GURL& requesting_origin,
+    const GURL& embedding_origin,
+    const std::string& device_address) {
+  std::vector<scoped_ptr<base::DictionaryValue>> device_list =
+      GetGrantedObjects(requesting_origin, embedding_origin);
+  std::vector<std::string> uuids;
+  const base::DictionaryValue* device_dict =
+      FindForDevice(device_list, device_address);
+  if (device_dict) {
+    const base::ListValue* uuid_list = nullptr;
+    device_dict->GetList(kDeviceUUIDsKey, &uuid_list);
+    size_t length = uuid_list->GetSize();
+    for (size_t i = 0; i < length; ++i) {
+      std::string uuid;
+      uuid_list->GetString(i, &uuid);
+      uuids.push_back(uuid);
+    }
+  }
+  return uuids;
+}
+
+void BluetoothPermissionContext::OnGetAdapter(
+    scoped_refptr<device::BluetoothAdapter> adapter) {
+  DCHECK(!adapter_.get());
+  adapter_ = adapter;
+  DCHECK(adapter_.get());
+}
+
+bool BluetoothPermissionContext::IsValidObject(
+    const base::DictionaryValue& object) {
+  std::string device_address, device_name;
+  const base::ListValue* device_uuids = nullptr;
+  return object.size() == 3 && object.HasKey(kDeviceAddressKey) &&
+         object.GetString(kDeviceAddressKey, &device_address) &&
+         object.HasKey(kDeviceNameKey) &&
+         object.GetString(kDeviceNameKey, &device_name) &&
+         object.HasKey(kDeviceUUIDsKey) &&
+         object.GetList(kDeviceUUIDsKey, &device_uuids);
+}