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109 lines
3.6 KiB
C++
109 lines
3.6 KiB
C++
// Copyright 2016 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef NET_NQE_NETWORK_ID_H_
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#define NET_NQE_NETWORK_ID_H_
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#include <string>
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#include <tuple>
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#include "base/strings/string_number_conversions.h"
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#include "net/base/net_export.h"
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#include "net/base/network_change_notifier.h"
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namespace {
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const char kValueSeparator[] = ",";
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// Parses |connection_type_string| as a NetworkChangeNotifier::ConnectionType.
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// |connection_type_string| must contain the
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// NetworkChangeNotifier::ConnectionType enum as an interger.
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net::NetworkChangeNotifier::ConnectionType ConvertStringToConnectionType(
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const std::string& connection_type_string) {
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int connection_type_int =
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static_cast<int>(net::NetworkChangeNotifier::CONNECTION_UNKNOWN);
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bool connection_type_available =
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base::StringToInt(connection_type_string, &connection_type_int);
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if (!connection_type_available || connection_type_int < 0 ||
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connection_type_int >
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static_cast<int>(net::NetworkChangeNotifier::CONNECTION_LAST)) {
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DCHECK(false);
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return net::NetworkChangeNotifier::CONNECTION_UNKNOWN;
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}
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return static_cast<net::NetworkChangeNotifier::ConnectionType>(
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connection_type_int);
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}
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} // namespace
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namespace net {
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namespace nqe {
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namespace internal {
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// NetworkID is used to uniquely identify a network.
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// For the purpose of network quality estimation and caching, a network is
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// uniquely identified by a combination of |type| and
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// |id|. This approach is unable to distinguish networks with
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// same name (e.g., different Wi-Fi networks with same SSID).
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// This is a protected member to expose it to tests.
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struct NET_EXPORT_PRIVATE NetworkID {
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static NetworkID FromString(const std::string& network_id) {
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size_t separator_index = network_id.find(kValueSeparator);
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DCHECK_NE(std::string::npos, separator_index);
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if (separator_index == std::string::npos) {
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return NetworkID(NetworkChangeNotifier::CONNECTION_UNKNOWN,
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std::string());
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}
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return NetworkID(
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ConvertStringToConnectionType(network_id.substr(separator_index + 1)),
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network_id.substr(0, separator_index));
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}
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NetworkID(NetworkChangeNotifier::ConnectionType type, const std::string& id)
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: type(type), id(id) {}
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NetworkID(const NetworkID& other) : type(other.type), id(other.id) {}
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~NetworkID() {}
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bool operator==(const NetworkID& other) const {
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return type == other.type && id == other.id;
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}
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bool operator!=(const NetworkID& other) const { return !operator==(other); }
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NetworkID& operator=(const NetworkID& other) {
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type = other.type;
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id = other.id;
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return *this;
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}
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// Overloaded to support ordered collections.
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bool operator<(const NetworkID& other) const {
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return std::tie(type, id) < std::tie(other.type, other.id);
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}
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std::string ToString() const {
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return id + kValueSeparator + base::IntToString(static_cast<int>(type));
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}
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// Connection type of the network.
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NetworkChangeNotifier::ConnectionType type;
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// Name of this network. This is set to:
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// - Wi-Fi SSID if the device is connected to a Wi-Fi access point and the
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// SSID name is available, or
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// - MCC/MNC code of the cellular carrier if the device is connected to a
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// cellular network, or
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// - "Ethernet" in case the device is connected to ethernet.
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// - An empty string in all other cases or if the network name is not
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// exposed by platform APIs.
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std::string id;
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};
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} // namespace internal
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} // namespace nqe
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} // namespace net
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#endif // NET_NQE_NETWORK_ID_H_
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