Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 167 insertions, 0 deletions

diff --git a/third_party/libwebrtc/api/candidate.cc b/third_party/libwebrtc/api/candidate.cc
new file mode 100644
index 0000000000..a14dda350c
--- /dev/null
+++ b/third_party/libwebrtc/api/candidate.cc
@@ -0,0 +1,167 @@
+/*
+ *  Copyright 2017 The WebRTC Project Authors. All rights reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "api/candidate.h"
+
+#include "rtc_base/helpers.h"
+#include "rtc_base/ip_address.h"
+#include "rtc_base/logging.h"
+#include "rtc_base/strings/string_builder.h"
+
+namespace cricket {
+
+Candidate::Candidate()
+    : id_(rtc::CreateRandomString(8)),
+      component_(0),
+      priority_(0),
+      network_type_(rtc::ADAPTER_TYPE_UNKNOWN),
+      underlying_type_for_vpn_(rtc::ADAPTER_TYPE_UNKNOWN),
+      generation_(0),
+      network_id_(0),
+      network_cost_(0) {}
+
+Candidate::Candidate(int component,
+                     absl::string_view protocol,
+                     const rtc::SocketAddress& address,
+                     uint32_t priority,
+                     absl::string_view username,
+                     absl::string_view password,
+                     absl::string_view type,
+                     uint32_t generation,
+                     absl::string_view foundation,
+                     uint16_t network_id,
+                     uint16_t network_cost)
+    : id_(rtc::CreateRandomString(8)),
+      component_(component),
+      protocol_(protocol),
+      address_(address),
+      priority_(priority),
+      username_(username),
+      password_(password),
+      type_(type),
+      network_type_(rtc::ADAPTER_TYPE_UNKNOWN),
+      underlying_type_for_vpn_(rtc::ADAPTER_TYPE_UNKNOWN),
+      generation_(generation),
+      foundation_(foundation),
+      network_id_(network_id),
+      network_cost_(network_cost) {}
+
+Candidate::Candidate(const Candidate&) = default;
+
+Candidate::~Candidate() = default;
+
+bool Candidate::IsEquivalent(const Candidate& c) const {
+  // We ignore the network name, since that is just debug information, and
+  // the priority and the network cost, since they should be the same if the
+  // rest are.
+  return (component_ == c.component_) && (protocol_ == c.protocol_) &&
+         (address_ == c.address_) && (username_ == c.username_) &&
+         (password_ == c.password_) && (type_ == c.type_) &&
+         (generation_ == c.generation_) && (foundation_ == c.foundation_) &&
+         (related_address_ == c.related_address_) &&
+         (network_id_ == c.network_id_);
+}
+
+bool Candidate::MatchesForRemoval(const Candidate& c) const {
+  return component_ == c.component_ && protocol_ == c.protocol_ &&
+         address_ == c.address_;
+}
+
+std::string Candidate::ToStringInternal(bool sensitive) const {
+  rtc::StringBuilder ost;
+  std::string address =
+      sensitive ? address_.ToSensitiveString() : address_.ToString();
+  ost << "Cand[" << transport_name_ << ":" << foundation_ << ":" << component_
+      << ":" << protocol_ << ":" << priority_ << ":" << address << ":" << type_
+      << ":" << related_address_.ToString() << ":" << username_ << ":"
+      << password_ << ":" << network_id_ << ":" << network_cost_ << ":"
+      << generation_ << "]";
+  return ost.Release();
+}
+
+uint32_t Candidate::GetPriority(uint32_t type_preference,
+                                int network_adapter_preference,
+                                int relay_preference) const {
+  // RFC 5245 - 4.1.2.1.
+  // priority = (2^24)*(type preference) +
+  //            (2^8)*(local preference) +
+  //            (2^0)*(256 - component ID)
+
+  // `local_preference` length is 2 bytes, 0-65535 inclusive.
+  // In our implemenation we will partion local_preference into
+  //              0                 1
+  //       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
+  //      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+  //      |  NIC Pref     |    Addr Pref  |
+  //      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+  // NIC Type - Type of the network adapter e.g. 3G/Wifi/Wired.
+  // Addr Pref - Address preference value as per RFC 3484.
+  // local preference =  (NIC Type << 8 | Addr_Pref) + relay preference.
+  // The relay preference is based on the number of TURN servers, the
+  // first TURN server gets the highest preference.
+
+  int addr_pref = IPAddressPrecedence(address_.ipaddr());
+  int local_preference =
+      ((network_adapter_preference << 8) | addr_pref) + relay_preference;
+
+  return (type_preference << 24) | (local_preference << 8) | (256 - component_);
+}
+
+bool Candidate::operator==(const Candidate& o) const {
+  return id_ == o.id_ && component_ == o.component_ &&
+         protocol_ == o.protocol_ && relay_protocol_ == o.relay_protocol_ &&
+         address_ == o.address_ && priority_ == o.priority_ &&
+         username_ == o.username_ && password_ == o.password_ &&
+         type_ == o.type_ && network_name_ == o.network_name_ &&
+         network_type_ == o.network_type_ && generation_ == o.generation_ &&
+         foundation_ == o.foundation_ &&
+         related_address_ == o.related_address_ && tcptype_ == o.tcptype_ &&
+         transport_name_ == o.transport_name_ && network_id_ == o.network_id_;
+}
+
+bool Candidate::operator!=(const Candidate& o) const {
+  return !(*this == o);
+}
+
+Candidate Candidate::ToSanitizedCopy(bool use_hostname_address,
+                                     bool filter_related_address) const {
+  Candidate copy(*this);
+  if (use_hostname_address) {
+    rtc::IPAddress ip;
+    if (address().hostname().empty()) {
+      // IP needs to be redacted, but no hostname available.
+      rtc::SocketAddress redacted_addr("redacted-ip.invalid", address().port());
+      copy.set_address(redacted_addr);
+    } else if (IPFromString(address().hostname(), &ip)) {
+      // The hostname is an IP literal, and needs to be redacted too.
+      rtc::SocketAddress redacted_addr("redacted-literal.invalid",
+                                       address().port());
+      copy.set_address(redacted_addr);
+    } else {
+      rtc::SocketAddress hostname_only_addr(address().hostname(),
+                                            address().port());
+      copy.set_address(hostname_only_addr);
+    }
+  }
+  if (filter_related_address) {
+    copy.set_related_address(
+        rtc::EmptySocketAddressWithFamily(copy.address().family()));
+  }
+  return copy;
+}
+
+void Candidate::Assign(std::string& s, absl::string_view view) {
+  // Assigning via a temporary object, like s = std::string(view), results in
+  // binary size bloat. To avoid that, extract pointer and size from the
+  // string view, and use std::string::assign method.
+  s.assign(view.data(), view.size());
+}
+
+}  // namespace cricket