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/* 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 "signaling/src/sdp/SipccSdp.h"
#include <cstdlib>
#include "mozilla/UniquePtr.h"
#include "mozilla/Assertions.h"
#include "signaling/src/sdp/SdpErrorHolder.h"
#ifdef CRLF
#undef CRLF
#endif
#define CRLF "\r\n"
namespace mozilla
{
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.values.size()) {
MOZ_CRASH();
}
return *mMediaSections.values[level];
}
SdpMediaSection&
SipccSdp::GetMediaSection(size_t level)
{
if (level > mMediaSections.values.size()) {
MOZ_CRASH();
}
return *mMediaSections.values[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.values.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.values.push_back(media);
return *media;
}
bool
SipccSdp::LoadOrigin(sdp_t* sdp, SdpErrorHolder& errorHolder)
{
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) {
errorHolder.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:
errorHolder.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, SdpErrorHolder& errorHolder)
{
// Believe it or not, SDP_SESSION_LEVEL is 0xFFFF
if (!mAttributeList.Load(sdp, SDP_SESSION_LEVEL, errorHolder)) {
return false;
}
if (!LoadOrigin(sdp, errorHolder)) {
return false;
}
if (!mBandwidths.Load(sdp, SDP_SESSION_LEVEL, errorHolder)) {
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, errorHolder)) {
return false;
}
mMediaSections.values.push_back(section.release());
}
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 SdpMediaSection* msection : mMediaSections.values) {
os << *msection;
}
}
bool
SipccSdpBandwidths::Load(sdp_t* sdp, uint16_t level,
SdpErrorHolder& errorHolder)
{
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
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