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// Copyright 2018 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 "net/dns/dns_config.h"
#include <utility>
#include "base/values.h"
namespace net {
// Default values are taken from glibc resolv.h except timeout which is set to
// |kDnsDefaultTimeoutMs|.
DnsConfig::DnsConfig() : DnsConfig(std::vector<IPEndPoint>()) {}
DnsConfig::DnsConfig(const DnsConfig& other) = default;
DnsConfig::DnsConfig(DnsConfig&& other) = default;
DnsConfig::DnsConfig(std::vector<IPEndPoint> nameservers)
: nameservers(std::move(nameservers)),
dns_over_tls_active(false),
dns_over_tls_hostname(std::string()),
unhandled_options(false),
append_to_multi_label_name(true),
randomize_ports(false),
ndots(1),
timeout(kDnsDefaultTimeout),
attempts(2),
doh_attempts(1),
rotate(false),
use_local_ipv6(false),
secure_dns_mode(SecureDnsMode::OFF),
allow_dns_over_https_upgrade(false) {}
DnsConfig::~DnsConfig() = default;
DnsConfig& DnsConfig::operator=(const DnsConfig& other) = default;
DnsConfig& DnsConfig::operator=(DnsConfig&& other) = default;
bool DnsConfig::Equals(const DnsConfig& d) const {
return EqualsIgnoreHosts(d) && (hosts == d.hosts);
}
bool DnsConfig::operator==(const DnsConfig& d) const {
return Equals(d);
}
bool DnsConfig::operator!=(const DnsConfig& d) const {
return !Equals(d);
}
bool DnsConfig::EqualsIgnoreHosts(const DnsConfig& d) const {
return (nameservers == d.nameservers) &&
(dns_over_tls_active == d.dns_over_tls_active) &&
(dns_over_tls_hostname == d.dns_over_tls_hostname) &&
(search == d.search) && (unhandled_options == d.unhandled_options) &&
(append_to_multi_label_name == d.append_to_multi_label_name) &&
(ndots == d.ndots) && (timeout == d.timeout) &&
(attempts == d.attempts) && (doh_attempts == d.doh_attempts) &&
(rotate == d.rotate) && (use_local_ipv6 == d.use_local_ipv6) &&
(dns_over_https_servers == d.dns_over_https_servers) &&
(secure_dns_mode == d.secure_dns_mode) &&
(allow_dns_over_https_upgrade == d.allow_dns_over_https_upgrade) &&
(disabled_upgrade_providers == d.disabled_upgrade_providers);
}
void DnsConfig::CopyIgnoreHosts(const DnsConfig& d) {
nameservers = d.nameservers;
dns_over_tls_active = d.dns_over_tls_active;
dns_over_tls_hostname = d.dns_over_tls_hostname;
search = d.search;
unhandled_options = d.unhandled_options;
append_to_multi_label_name = d.append_to_multi_label_name;
ndots = d.ndots;
timeout = d.timeout;
attempts = d.attempts;
doh_attempts = d.doh_attempts;
rotate = d.rotate;
use_local_ipv6 = d.use_local_ipv6;
dns_over_https_servers = d.dns_over_https_servers;
secure_dns_mode = d.secure_dns_mode;
allow_dns_over_https_upgrade = d.allow_dns_over_https_upgrade;
disabled_upgrade_providers = d.disabled_upgrade_providers;
}
std::unique_ptr<base::Value> DnsConfig::ToValue() const {
auto dict = std::make_unique<base::DictionaryValue>();
auto list = std::make_unique<base::ListValue>();
for (size_t i = 0; i < nameservers.size(); ++i)
list->AppendString(nameservers[i].ToString());
dict->Set("nameservers", std::move(list));
dict->SetBoolean("dns_over_tls_active", dns_over_tls_active);
dict->SetString("dns_over_tls_hostname", dns_over_tls_hostname);
list = std::make_unique<base::ListValue>();
for (size_t i = 0; i < search.size(); ++i)
list->AppendString(search[i]);
dict->Set("search", std::move(list));
dict->SetBoolean("unhandled_options", unhandled_options);
dict->SetBoolean("append_to_multi_label_name", append_to_multi_label_name);
dict->SetInteger("ndots", ndots);
dict->SetDouble("timeout", timeout.InSecondsF());
dict->SetInteger("attempts", attempts);
dict->SetInteger("doh_attempts", doh_attempts);
dict->SetBoolean("rotate", rotate);
dict->SetBoolean("use_local_ipv6", use_local_ipv6);
dict->SetInteger("num_hosts", hosts.size());
list = std::make_unique<base::ListValue>();
for (auto& server : dns_over_https_servers) {
base::Value val(base::Value::Type::DICTIONARY);
base::DictionaryValue* dict;
val.GetAsDictionary(&dict);
dict->SetString("server_template", server.server_template);
dict->SetBoolean("use_post", server.use_post);
list->Append(std::move(val));
}
dict->Set("doh_servers", std::move(list));
dict->SetInteger("secure_dns_mode", static_cast<int>(secure_dns_mode));
dict->SetBoolean("allow_dns_over_https_upgrade",
allow_dns_over_https_upgrade);
list = std::make_unique<base::ListValue>();
for (const auto& provider : disabled_upgrade_providers)
list->AppendString(provider);
dict->Set("disabled_upgrade_providers", std::move(list));
return std::move(dict);
}
} // namespace net
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