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