| // 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 "quiche/quic/core/quic_server_id.h" |
| |
| #include <optional> |
| #include <string> |
| #include <tuple> |
| #include <utility> |
| |
| #include "absl/strings/match.h" |
| #include "absl/strings/str_cat.h" |
| #include "absl/strings/string_view.h" |
| #include "quiche/common/platform/api/quiche_googleurl.h" |
| #include "quiche/common/platform/api/quiche_logging.h" |
| |
| namespace quic { |
| |
| // static |
| std::optional<QuicServerId> QuicServerId::ParseFromHostPortString( |
| absl::string_view host_port_string) { |
| url::Component username_component; |
| url::Component password_component; |
| url::Component host_component; |
| url::Component port_component; |
| |
| url::ParseAuthority(host_port_string.data(), |
| url::Component(0, host_port_string.size()), |
| &username_component, &password_component, &host_component, |
| &port_component); |
| |
| // Only support "host:port" and nothing more or less. |
| if (username_component.is_valid() || password_component.is_valid() || |
| !host_component.is_nonempty() || !port_component.is_nonempty()) { |
| QUICHE_DVLOG(1) << "QuicServerId could not be parsed: " << host_port_string; |
| return std::nullopt; |
| } |
| |
| std::string hostname(host_port_string.data() + host_component.begin, |
| host_component.len); |
| |
| int parsed_port_number = |
| url::ParsePort(host_port_string.data(), port_component); |
| // Negative result is either invalid or unspecified, either of which is |
| // disallowed for this parse. Port 0 is technically valid but reserved and not |
| // really usable in practice, so easiest to just disallow it here. |
| if (parsed_port_number <= 0) { |
| QUICHE_DVLOG(1) |
| << "Port could not be parsed while parsing QuicServerId from: " |
| << host_port_string; |
| return std::nullopt; |
| } |
| QUICHE_DCHECK_LE(parsed_port_number, std::numeric_limits<uint16_t>::max()); |
| |
| return QuicServerId(std::move(hostname), |
| static_cast<uint16_t>(parsed_port_number)); |
| } |
| |
| QuicServerId::QuicServerId() : QuicServerId("", 0, false) {} |
| |
| QuicServerId::QuicServerId(std::string host, uint16_t port) |
| : QuicServerId(std::move(host), port, false) {} |
| |
| QuicServerId::QuicServerId(std::string host, uint16_t port, |
| bool privacy_mode_enabled) |
| : host_(std::move(host)), |
| port_(port), |
| privacy_mode_enabled_(privacy_mode_enabled) {} |
| |
| QuicServerId::~QuicServerId() {} |
| |
| bool QuicServerId::operator<(const QuicServerId& other) const { |
| return std::tie(port_, host_, privacy_mode_enabled_) < |
| std::tie(other.port_, other.host_, other.privacy_mode_enabled_); |
| } |
| |
| bool QuicServerId::operator==(const QuicServerId& other) const { |
| return privacy_mode_enabled_ == other.privacy_mode_enabled_ && |
| host_ == other.host_ && port_ == other.port_; |
| } |
| |
| bool QuicServerId::operator!=(const QuicServerId& other) const { |
| return !(*this == other); |
| } |
| |
| std::string QuicServerId::ToHostPortString() const { |
| return absl::StrCat(GetHostWithIpv6Brackets(), ":", port_); |
| } |
| |
| absl::string_view QuicServerId::GetHostWithoutIpv6Brackets() const { |
| if (host_.length() > 2 && host_.front() == '[' && host_.back() == ']') { |
| return absl::string_view(host_.data() + 1, host_.length() - 2); |
| } else { |
| return host_; |
| } |
| } |
| |
| std::string QuicServerId::GetHostWithIpv6Brackets() const { |
| if (!absl::StrContains(host_, ':') || host_.length() <= 2 || |
| (host_.front() == '[' && host_.back() == ']')) { |
| return host_; |
| } else { |
| return absl::StrCat("[", host_, "]"); |
| } |
| } |
| |
| } // namespace quic |