1 files changed, 173 insertions, 0 deletions
diff --git a/dom/media/webrtc/sdp/SipccSdp.cpp b/dom/media/webrtc/sdp/SipccSdp.cpp
new file mode 100644
index 0000000000..7e36f9e930
--- /dev/null
+++ b/dom/media/webrtc/sdp/SipccSdp.cpp
@@ -0,0 +1,173 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "sdp/SipccSdp.h"
+
+#include <cstdlib>
+#include "mozilla/UniquePtr.h"
+#include "mozilla/Assertions.h"
+#include "sdp/SdpParser.h"
+
+#ifdef CRLF
+#  undef CRLF
+#endif
+#define CRLF "\r\n"
+
+namespace mozilla {
+
+SipccSdp::SipccSdp(const SipccSdp& aOrig)
+    : mOrigin(aOrig.mOrigin),
+      mBandwidths(aOrig.mBandwidths),
+      mAttributeList(aOrig.mAttributeList, nullptr) {
+  for (const auto& msection : aOrig.mMediaSections) {
+    mMediaSections.emplace_back(
+        new SipccSdpMediaSection(*msection, &mAttributeList));
+  }
+}
+
+Sdp* SipccSdp::Clone() const { return new SipccSdp(*this); }
+
+const SdpOrigin& SipccSdp::GetOrigin() const { return mOrigin; }
+
+uint32_t SipccSdp::GetBandwidth(const std::string& type) const {
+  auto found = mBandwidths.find(type);
+  if (found == mBandwidths.end()) {
+    return 0;
+  }
+  return found->second;
+}
+
+const SdpMediaSection& SipccSdp::GetMediaSection(size_t level) const {
+  if (level > mMediaSections.size()) {
+    MOZ_CRASH();
+  }
+  return *mMediaSections[level];
+}
+
+SdpMediaSection& SipccSdp::GetMediaSection(size_t level) {
+  if (level > mMediaSections.size()) {
+    MOZ_CRASH();
+  }
+  return *mMediaSections[level];
+}
+
+SdpMediaSection& SipccSdp::AddMediaSection(SdpMediaSection::MediaType mediaType,
+                                           SdpDirectionAttribute::Direction dir,
+                                           uint16_t port,
+                                           SdpMediaSection::Protocol protocol,
+                                           sdp::AddrType addrType,
+                                           const std::string& addr) {
+  size_t level = mMediaSections.size();
+  SipccSdpMediaSection* media =
+      new SipccSdpMediaSection(level, &mAttributeList);
+  media->mMediaType = mediaType;
+  media->mPort = port;
+  media->mPortCount = 0;
+  media->mProtocol = protocol;
+  media->mConnection = MakeUnique<SdpConnection>(addrType, addr);
+  media->GetAttributeList().SetAttribute(new SdpDirectionAttribute(dir));
+  mMediaSections.emplace_back(media);
+  return *media;
+}
+
+bool SipccSdp::LoadOrigin(sdp_t* sdp, InternalResults& results) {
+  std::string username = sdp_get_owner_username(sdp);
+  uint64_t sessId = strtoull(sdp_get_owner_sessionid(sdp), nullptr, 10);
+  uint64_t sessVer = strtoull(sdp_get_owner_version(sdp), nullptr, 10);
+
+  sdp_nettype_e type = sdp_get_owner_network_type(sdp);
+  if (type != SDP_NT_INTERNET) {
+    results.AddParseError(2, "Unsupported network type");
+    return false;
+  }
+
+  sdp::AddrType addrType;
+  switch (sdp_get_owner_address_type(sdp)) {
+    case SDP_AT_IP4:
+      addrType = sdp::kIPv4;
+      break;
+    case SDP_AT_IP6:
+      addrType = sdp::kIPv6;
+      break;
+    default:
+      results.AddParseError(2, "Unsupported address type");
+      return false;
+  }
+
+  std::string address = sdp_get_owner_address(sdp);
+  mOrigin = SdpOrigin(username, sessId, sessVer, addrType, address);
+  return true;
+}
+
+bool SipccSdp::Load(sdp_t* sdp, InternalResults& results) {
+  // Believe it or not, SDP_SESSION_LEVEL is 0xFFFF
+  if (!mAttributeList.Load(sdp, SDP_SESSION_LEVEL, results)) {
+    return false;
+  }
+
+  if (!LoadOrigin(sdp, results)) {
+    return false;
+  }
+
+  if (!mBandwidths.Load(sdp, SDP_SESSION_LEVEL, results)) {
+    return false;
+  }
+
+  for (int i = 0; i < sdp_get_num_media_lines(sdp); ++i) {
+    // note that we pass a "level" here that is one higher
+    // sipcc counts media sections from 1, using 0xFFFF as the "session"
+    UniquePtr<SipccSdpMediaSection> section(
+        new SipccSdpMediaSection(i, &mAttributeList));
+    if (!section->Load(sdp, i + 1, results)) {
+      return false;
+    }
+    mMediaSections.push_back(std::move(section));
+  }
+  return true;
+}
+
+void SipccSdp::Serialize(std::ostream& os) const {
+  os << "v=0" << CRLF << mOrigin << "s=-" << CRLF;
+
+  // We don't support creating i=, u=, e=, p=
+  // We don't generate c= at the session level (only in media)
+
+  mBandwidths.Serialize(os);
+  os << "t=0 0" << CRLF;
+
+  // We don't support r= or z=
+
+  // attributes
+  os << mAttributeList;
+
+  // media sections
+  for (const auto& msection : mMediaSections) {
+    os << *msection;
+  }
+}
+
+bool SipccSdpBandwidths::Load(sdp_t* sdp, uint16_t level,
+                              InternalResults& results) {
+  size_t count = sdp_get_num_bw_lines(sdp, level);
+  for (size_t i = 1; i <= count; ++i) {
+    sdp_bw_modifier_e bwtype = sdp_get_bw_modifier(sdp, level, i);
+    uint32_t bandwidth = sdp_get_bw_value(sdp, level, i);
+    if (bwtype != SDP_BW_MODIFIER_UNSUPPORTED) {
+      const char* typeName = sdp_get_bw_modifier_name(bwtype);
+      (*this)[typeName] = bandwidth;
+    }
+  }
+
+  return true;
+}
+
+void SipccSdpBandwidths::Serialize(std::ostream& os) const {
+  for (auto i = begin(); i != end(); ++i) {
+    os << "b=" << i->first << ":" << i->second << CRLF;
+  }
+}
+
+}  // namespace mozilla