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VoIPController.cpp
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VoIPController.cpp
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//
// libtgvoip is free and unencumbered public domain software.
// For more information, see http://unlicense.org or the UNLICENSE file
// you should have received with this source code distribution.
//
#ifndef _WIN32
#include <unistd.h>
#include <sys/time.h>
#endif
#include <errno.h>
#include <string.h>
#include <wchar.h>
#include "VoIPController.h"
#include "logging.h"
#include "threading.h"
#include "Buffers.h"
#include "OpusEncoder.h"
#include "OpusDecoder.h"
#include "VoIPServerConfig.h"
#include "PrivateDefines.h"
#include "json11.hpp"
#include <assert.h>
#include <time.h>
#include <math.h>
#include <exception>
#include <stdexcept>
#include <algorithm>
#include <sstream>
#include <inttypes.h>
#include <float.h>
inline int pad4(int x){
int r=PAD4(x);
if(r==4)
return 0;
return r;
}
using namespace tgvoip;
using namespace std;
#ifdef __APPLE__
#include "os/darwin/AudioUnitIO.h"
#include <mach/mach_time.h>
double VoIPController::machTimebase=0;
uint64_t VoIPController::machTimestart=0;
#endif
#ifdef _WIN32
int64_t VoIPController::win32TimeScale = 0;
bool VoIPController::didInitWin32TimeScale = false;
#endif
#ifdef __ANDROID__
#include "os/android/JNIUtilities.h"
#include "os/android/AudioInputAndroid.h"
extern jclass jniUtilitiesClass;
#endif
#if defined(TGVOIP_USE_CALLBACK_AUDIO_IO)
#include "audio/AudioIOCallback.h"
#endif
#pragma mark - OpenSSL wrappers
#ifndef TGVOIP_NO_CRYPTO_INIT
#ifndef TGVOIP_USE_CUSTOM_CRYPTO
extern "C" {
#include <openssl/sha.h>
#include <openssl/aes.h>
#include <openssl/modes.h>
#include <openssl/rand.h>
}
void tgvoip_openssl_aes_ige_encrypt(uint8_t* in, uint8_t* out, size_t length, uint8_t* key, uint8_t* iv){
AES_KEY akey;
AES_set_encrypt_key(key, 32*8, &akey);
AES_ige_encrypt(in, out, length, &akey, iv, AES_ENCRYPT);
}
void tgvoip_openssl_aes_ige_decrypt(uint8_t* in, uint8_t* out, size_t length, uint8_t* key, uint8_t* iv){
AES_KEY akey;
AES_set_decrypt_key(key, 32*8, &akey);
AES_ige_encrypt(in, out, length, &akey, iv, AES_DECRYPT);
}
void tgvoip_openssl_rand_bytes(uint8_t* buffer, size_t len){
RAND_bytes(buffer, len);
}
void tgvoip_openssl_sha1(uint8_t* msg, size_t len, uint8_t* output){
SHA1(msg, len, output);
}
void tgvoip_openssl_sha256(uint8_t* msg, size_t len, uint8_t* output){
SHA256(msg, len, output);
}
void tgvoip_openssl_aes_ctr_encrypt(uint8_t* inout, size_t length, uint8_t* key, uint8_t* iv, uint8_t* ecount, uint32_t* num){
AES_KEY akey;
AES_set_encrypt_key(key, 32*8, &akey);
CRYPTO_ctr128_encrypt(inout, inout, length, &akey, iv, ecount, num, (block128_f) AES_encrypt);
}
void tgvoip_openssl_aes_cbc_encrypt(uint8_t* in, uint8_t* out, size_t length, uint8_t* key, uint8_t* iv){
AES_KEY akey;
AES_set_encrypt_key(key, 256, &akey);
AES_cbc_encrypt(in, out, length, &akey, iv, AES_ENCRYPT);
}
void tgvoip_openssl_aes_cbc_decrypt(uint8_t* in, uint8_t* out, size_t length, uint8_t* key, uint8_t* iv){
AES_KEY akey;
AES_set_decrypt_key(key, 256, &akey);
AES_cbc_encrypt(in, out, length, &akey, iv, AES_DECRYPT);
}
CryptoFunctions VoIPController::crypto={
tgvoip_openssl_rand_bytes,
tgvoip_openssl_sha1,
tgvoip_openssl_sha256,
tgvoip_openssl_aes_ige_encrypt,
tgvoip_openssl_aes_ige_decrypt,
tgvoip_openssl_aes_ctr_encrypt,
tgvoip_openssl_aes_cbc_encrypt,
tgvoip_openssl_aes_cbc_decrypt
};
#else
CryptoFunctions VoIPController::crypto; // set it yourself upon initialization
#endif
#endif
extern FILE* tgvoipLogFile;
#pragma mark - Public API
VoIPController::VoIPController() : activeNetItfName(""),
currentAudioInput("default"),
currentAudioOutput("default"),
proxyAddress(""),
proxyUsername(""),
proxyPassword(""){
seq=1;
lastRemoteSeq=0;
state=STATE_WAIT_INIT;
audioInput=NULL;
audioOutput=NULL;
encoder=NULL;
audioOutStarted=false;
audioTimestampIn=0;
audioTimestampOut=0;
stopping=false;
memset(recvPacketTimes, 0, sizeof(double)*32);
memset(&stats, 0, sizeof(TrafficStats));
lastRemoteAckSeq=0;
lastSentSeq=0;
recvLossCount=0;
packetsReceived=0;
waitingForAcks=false;
networkType=NET_TYPE_UNKNOWN;
echoCanceller=NULL;
dontSendPackets=0;
micMuted=false;
waitingForRelayPeerInfo=false;
allowP2p=true;
dataSavingMode=false;
publicEndpointsReqTime=0;
connectionInitTime=0;
lastRecvPacketTime=0;
dataSavingRequestedByPeer=false;
peerVersion=0;
conctl=new CongestionControl();
prevSendLossCount=0;
receivedInit=false;
receivedInitAck=false;
statsDump=NULL;
useTCP=false;
useUDP=true;
didAddTcpRelays=false;
udpPingCount=0;
lastUdpPingTime=0;
proxyProtocol=PROXY_NONE;
proxyPort=0;
resolvedProxyAddress=NULL;
selectCanceller=SocketSelectCanceller::Create();
udpSocket=NetworkSocket::Create(PROTO_UDP);
realUdpSocket=udpSocket;
udpConnectivityState=UDP_UNKNOWN;
echoCancellationStrength=1;
peerCapabilities=0;
callbacks={0};
didReceiveGroupCallKey=false;
didReceiveGroupCallKeyAck=false;
didSendGroupCallKey=false;
didSendUpgradeRequest=false;
didInvokeUpgradeCallback=false;
connectionMaxLayer=0;
useMTProto2=false;
setCurrentEndpointToTCP=false;
useIPv6=false;
peerIPv6Available=false;
shittyInternetMode=false;
didAddIPv6Relays=false;
didSendIPv6Endpoint=false;
unsentStreamPackets.store(0);
sendThread=NULL;
recvThread=NULL;
maxAudioBitrate=(uint32_t) ServerConfig::GetSharedInstance()->GetInt("audio_max_bitrate", 20000);
maxAudioBitrateGPRS=(uint32_t) ServerConfig::GetSharedInstance()->GetInt("audio_max_bitrate_gprs", 8000);
maxAudioBitrateEDGE=(uint32_t) ServerConfig::GetSharedInstance()->GetInt("audio_max_bitrate_edge", 16000);
maxAudioBitrateSaving=(uint32_t) ServerConfig::GetSharedInstance()->GetInt("audio_max_bitrate_saving", 8000);
initAudioBitrate=(uint32_t) ServerConfig::GetSharedInstance()->GetInt("audio_init_bitrate", 16000);
initAudioBitrateGPRS=(uint32_t) ServerConfig::GetSharedInstance()->GetInt("audio_init_bitrate_gprs", 8000);
initAudioBitrateEDGE=(uint32_t) ServerConfig::GetSharedInstance()->GetInt("audio_init_bitrate_edge", 8000);
initAudioBitrateSaving=(uint32_t) ServerConfig::GetSharedInstance()->GetInt("audio_init_bitrate_saving", 8000);
audioBitrateStepIncr=(uint32_t) ServerConfig::GetSharedInstance()->GetInt("audio_bitrate_step_incr", 1000);
audioBitrateStepDecr=(uint32_t) ServerConfig::GetSharedInstance()->GetInt("audio_bitrate_step_decr", 1000);
minAudioBitrate=(uint32_t) ServerConfig::GetSharedInstance()->GetInt("audio_min_bitrate", 8000);
relaySwitchThreshold=ServerConfig::GetSharedInstance()->GetDouble("relay_switch_threshold", 0.8);
p2pToRelaySwitchThreshold=ServerConfig::GetSharedInstance()->GetDouble("p2p_to_relay_switch_threshold", 0.6);
relayToP2pSwitchThreshold=ServerConfig::GetSharedInstance()->GetDouble("relay_to_p2p_switch_threshold", 0.8);
reconnectingTimeout=ServerConfig::GetSharedInstance()->GetDouble("reconnecting_state_timeout", 2.0);
needRateFlags=static_cast<uint32_t>(ServerConfig::GetSharedInstance()->GetInt("rate_flags", 0xFFFFFFFF));
rateMaxAcceptableRTT=ServerConfig::GetSharedInstance()->GetDouble("rate_min_rtt", 0.6);
rateMaxAcceptableSendLoss=ServerConfig::GetSharedInstance()->GetDouble("rate_min_send_loss", 0.2);
packetLossToEnableExtraEC=ServerConfig::GetSharedInstance()->GetDouble("packet_loss_for_extra_ec", 0.02);
maxUnsentStreamPackets=static_cast<uint32_t>(ServerConfig::GetSharedInstance()->GetInt("max_unsent_stream_packets", 2));
#ifdef __APPLE__
machTimestart=0;
#endif
shared_ptr<Stream> stm=make_shared<Stream>();
stm->id=1;
stm->type=STREAM_TYPE_AUDIO;
stm->codec=CODEC_OPUS;
stm->enabled=1;
stm->frameDuration=60;
outgoingStreams.push_back(stm);
}
VoIPController::~VoIPController(){
LOGD("Entered VoIPController::~VoIPController");
if(!stopping){
LOGE("!!!!!!!!!!!!!!!!!!!! CALL controller->Stop() BEFORE DELETING THE CONTROLLER OBJECT !!!!!!!!!!!!!!!!!!!!!!!1");
abort();
}
LOGD("before close socket");
if(udpSocket)
delete udpSocket;
if(udpSocket!=realUdpSocket)
delete realUdpSocket;
LOGD("before delete audioIO");
if(audioIO){
delete audioIO;
audioInput=NULL;
audioOutput=NULL;
}
for(vector<shared_ptr<Stream>>::iterator _stm=incomingStreams.begin();_stm!=incomingStreams.end();++_stm){
shared_ptr<Stream> stm=*_stm;
LOGD("before stop decoder");
if(stm->decoder){
stm->decoder->Stop();
}
}
LOGD("before delete encoder");
if(encoder){
encoder->Stop();
delete encoder;
}
LOGD("before delete echo canceller");
if(echoCanceller){
echoCanceller->Stop();
delete echoCanceller;
}
delete conctl;
if(statsDump)
fclose(statsDump);
if(resolvedProxyAddress)
delete resolvedProxyAddress;
delete selectCanceller;
LOGD("Left VoIPController::~VoIPController");
if(tgvoipLogFile){
FILE* log=tgvoipLogFile;
tgvoipLogFile=NULL;
fclose(log);
}
}
void VoIPController::Stop(){
LOGD("Entered VoIPController::Stop");
stopping=true;
runReceiver=false;
LOGD("before shutdown socket");
if(udpSocket)
udpSocket->Close();
if(realUdpSocket!=udpSocket)
realUdpSocket->Close();
selectCanceller->CancelSelect();
Buffer emptyBuf(0);
//PendingOutgoingPacket emptyPacket{0, 0, 0, move(emptyBuf), 0};
//sendQueue->Put(move(emptyPacket));
LOGD("before join sendThread");
if(sendThread){
sendThread->Join();
delete sendThread;
}
LOGD("before join recvThread");
if(recvThread){
recvThread->Join();
delete recvThread;
}
LOGD("before stop messageThread");
messageThread.Stop();
{
LOGD("Before stop audio I/O");
MutexGuard m(audioIOMutex);
if(audioInput){
audioInput->Stop();
audioInput->SetCallback(NULL, NULL);
}
if(audioOutput){
audioOutput->Stop();
audioOutput->SetCallback(NULL, NULL);
}
}
LOGD("Left VoIPController::Stop [need rate = %d]", (int)needRate);
}
bool VoIPController::NeedRate(){
return needRate && ServerConfig::GetSharedInstance()->GetBoolean("bad_call_rating", false);
}
void VoIPController::SetRemoteEndpoints(vector<Endpoint> endpoints, bool allowP2p, int32_t connectionMaxLayer){
LOGW("Set remote endpoints, allowP2P=%d, connectionMaxLayer=%u", allowP2p ? 1 : 0, connectionMaxLayer);
preferredRelay=0;
{
MutexGuard m(endpointsMutex);
this->endpoints.clear();
didAddTcpRelays=false;
useTCP=true;
for(vector<Endpoint>::iterator itrtr=endpoints.begin();itrtr!=endpoints.end();++itrtr){
if(this->endpoints.find(itrtr->id)!=this->endpoints.end())
LOGE("Endpoint IDs are not unique!");
this->endpoints[itrtr->id]=*itrtr;
if(currentEndpoint==0)
currentEndpoint=itrtr->id;
if(itrtr->type==Endpoint::Type::TCP_RELAY)
didAddTcpRelays=true;
if(itrtr->type==Endpoint::Type::UDP_RELAY)
useTCP=false;
LOGV("Adding endpoint: %s:%d, %s", itrtr->address.ToString().c_str(), itrtr->port, itrtr->type==Endpoint::Type::UDP_RELAY ? "UDP" : "TCP");
}
}
preferredRelay=currentEndpoint;
this->allowP2p=allowP2p;
this->connectionMaxLayer=connectionMaxLayer;
if(connectionMaxLayer>=74){
useMTProto2=true;
}
AddIPv6Relays();
}
void VoIPController::Start(){
LOGW("Starting voip controller");
udpSocket->Open();
if(udpSocket->IsFailed()){
SetState(STATE_FAILED);
return;
}
//SendPacket(NULL, 0, currentEndpoint);
runReceiver=true;
recvThread=new Thread(bind(&VoIPController::RunRecvThread, this));
recvThread->SetName("VoipRecv");
recvThread->Start();
messageThread.Start();
}
void VoIPController::Connect(){
assert(state!=STATE_WAIT_INIT_ACK);
connectionInitTime=GetCurrentTime();
if(config.initTimeout==0.0){
LOGE("Init timeout is 0 -- did you forget to set config?");
config.initTimeout=30.0;
}
//InitializeTimers();
//SendInit();
sendThread=new Thread(bind(&VoIPController::RunSendThread, this));
sendThread->SetName("VoipSend");
sendThread->Start();
}
void VoIPController::SetEncryptionKey(char *key, bool isOutgoing){
memcpy(encryptionKey, key, 256);
uint8_t sha1[SHA1_LENGTH];
crypto.sha1((uint8_t*) encryptionKey, 256, sha1);
memcpy(keyFingerprint, sha1+(SHA1_LENGTH-8), 8);
uint8_t sha256[SHA256_LENGTH];
crypto.sha256((uint8_t*) encryptionKey, 256, sha256);
memcpy(callID, sha256+(SHA256_LENGTH-16), 16);
this->isOutgoing=isOutgoing;
}
void VoIPController::SetNetworkType(int type){
networkType=type;
UpdateDataSavingState();
UpdateAudioBitrateLimit();
myIPv6=IPv6Address();
string itfName=udpSocket->GetLocalInterfaceInfo(NULL, &myIPv6);
LOGI("set network type: %s, active interface %s", NetworkTypeToString(type).c_str(), itfName.c_str());
LOGI("Local IPv6 address: %s", myIPv6.ToString().c_str());
if(IS_MOBILE_NETWORK(networkType)){
CellularCarrierInfo carrier=GetCarrierInfo();
if(!carrier.name.empty()){
LOGI("Carrier: %s [%s; mcc=%s, mnc=%s]", carrier.name.c_str(), carrier.countryCode.c_str(), carrier.mcc.c_str(), carrier.mnc.c_str());
}
}
if(itfName!=activeNetItfName){
udpSocket->OnActiveInterfaceChanged();
LOGI("Active network interface changed: %s -> %s", activeNetItfName.c_str(), itfName.c_str());
bool isFirstChange=activeNetItfName.length()==0 && state!=STATE_ESTABLISHED && state!=STATE_RECONNECTING;
activeNetItfName=itfName;
if(isFirstChange)
return;
wasNetworkHandover=true;
if(currentEndpoint){
const Endpoint& _currentEndpoint=endpoints.at(currentEndpoint);
const Endpoint& _preferredRelay=endpoints.at(preferredRelay);
if(_currentEndpoint.type!=Endpoint::Type::UDP_RELAY){
if(_preferredRelay.type==Endpoint::Type::UDP_RELAY)
currentEndpoint=preferredRelay;
MutexGuard m(endpointsMutex);
constexpr int64_t lanID=(int64_t)(FOURCC('L','A','N','4')) << 32;
endpoints.erase(lanID);
for(pair<const int64_t, Endpoint>& e:endpoints){
Endpoint& endpoint=e.second;
if(endpoint.type==Endpoint::Type::UDP_RELAY && useTCP){
useTCP=false;
if(_preferredRelay.type==Endpoint::Type::TCP_RELAY){
preferredRelay=currentEndpoint=endpoint.id;
}
}else if(endpoint.type==Endpoint::Type::TCP_RELAY && endpoint.socket){
endpoint.socket->Close();
//delete endpoint.socket;
//endpoint.socket=NULL;
}
//if(endpoint->type==Endpoint::Type::UDP_P2P_INET){
endpoint.averageRTT=0;
endpoint.rtts.Reset();
//}
}
}
}
lastUdpPingTime=0;
if(proxyProtocol==PROXY_SOCKS5)
InitUDPProxy();
if(allowP2p && currentEndpoint){
SendPublicEndpointsRequest();
}
BufferOutputStream s(4);
s.WriteInt32(dataSavingMode ? INIT_FLAG_DATA_SAVING_ENABLED : 0);
if(peerVersion<6){
SendPacketReliably(PKT_NETWORK_CHANGED, s.GetBuffer(), s.GetLength(), 1, 20);
}else{
Buffer buf(move(s));
SendExtra(buf, EXTRA_TYPE_NETWORK_CHANGED);
}
needReInitUdpProxy=true;
selectCanceller->CancelSelect();
didSendIPv6Endpoint=false;
AddIPv6Relays();
ResetUdpAvailability();
ResetEndpointPingStats();
}
}
double VoIPController::GetAverageRTT(){
if(lastSentSeq>=lastRemoteAckSeq){
uint32_t diff=lastSentSeq-lastRemoteAckSeq;
//LOGV("rtt diff=%u", diff);
if(diff<32){
double res=0;
int count=0;
/*for(i=diff;i<32;i++){
if(remoteAcks[i-diff]>0){
res+=(remoteAcks[i-diff]-sentPacketTimes[i]);
count++;
}
}*/
MutexGuard m(queuedPacketsMutex);
for(std::vector<RecentOutgoingPacket>::iterator itr=recentOutgoingPackets.begin();itr!=recentOutgoingPackets.end();++itr){
if(itr->ackTime>0){
res+=(itr->ackTime-itr->sendTime);
count++;
}
}
if(count>0)
res/=count;
return res;
}
}
return 999;
}
void VoIPController::SetMicMute(bool mute){
if(micMuted==mute)
return;
micMuted=mute;
if(audioInput){
if(mute)
audioInput->Stop();
else
audioInput->Start();
if(!audioInput->IsInitialized()){
lastError=ERROR_AUDIO_IO;
SetState(STATE_FAILED);
return;
}
}
if(echoCanceller)
echoCanceller->Enable(!mute);
if(state==STATE_ESTABLISHED){
for(shared_ptr<Stream>& s:outgoingStreams){
if(s->type==STREAM_TYPE_AUDIO){
s->enabled=!mute;
if(peerVersion<6){
unsigned char buf[2];
buf[0]=s->id;
buf[1]=(char) (mute ? 0 : 1);
SendPacketReliably(PKT_STREAM_STATE, buf, 2, .5f, 20);
}else{
SendStreamFlags(*s);
}
}
}
}
if(mute){
if(noStreamsNopID==MessageThread::INVALID_ID)
noStreamsNopID=messageThread.Post(std::bind(&VoIPController::SendNopPacket, this), 0.2, 0.2);
}else{
if(noStreamsNopID!=MessageThread::INVALID_ID){
messageThread.Cancel(noStreamsNopID);
noStreamsNopID=MessageThread::INVALID_ID;
}
}
}
string VoIPController::GetDebugString(){
string r="Remote endpoints: \n";
char buffer[2048];
MutexGuard m(endpointsMutex);
for(pair<const int64_t, Endpoint>& _e:endpoints){
Endpoint& endpoint=_e.second;
const char* type;
switch(endpoint.type){
case Endpoint::Type::UDP_P2P_INET:
type="UDP_P2P_INET";
break;
case Endpoint::Type::UDP_P2P_LAN:
type="UDP_P2P_LAN";
break;
case Endpoint::Type::UDP_RELAY:
type="UDP_RELAY";
break;
case Endpoint::Type::TCP_RELAY:
type="TCP_RELAY";
break;
default:
type="UNKNOWN";
break;
}
snprintf(buffer, sizeof(buffer), "%s:%u %dms %d 0x%" PRIx64 " [%s%s]\n", endpoint.address.IsEmpty() ? ("["+endpoint.v6address.ToString()+"]").c_str() : endpoint.address.ToString().c_str(), endpoint.port, (int)(endpoint.averageRTT*1000), endpoint.udpPongCount, (uint64_t)endpoint.id, type, currentEndpoint==endpoint.id ? ", IN_USE" : "");
r+=buffer;
}
if(shittyInternetMode){
snprintf(buffer, sizeof(buffer), "ShittyInternetMode: level %d\n", extraEcLevel);
r+=buffer;
}
double avgLate[3];
shared_ptr<Stream> stm=GetStreamByType(STREAM_TYPE_AUDIO, false);
shared_ptr<JitterBuffer> jitterBuffer;
if(stm)
jitterBuffer=stm->jitterBuffer;
if(jitterBuffer)
jitterBuffer->GetAverageLateCount(avgLate);
else
memset(avgLate, 0, 3*sizeof(double));
snprintf(buffer, sizeof(buffer),
"Jitter buffer: %d/%.2f | %.1f, %.1f, %.1f\n"
"RTT avg/min: %d/%d\n"
"Congestion window: %d/%d bytes\n"
"Key fingerprint: %02hhX%02hhX%02hhX%02hhX%02hhX%02hhX%02hhX%02hhX%s\n"
"Last sent/ack'd seq: %u/%u\n"
"Last recvd seq: %u\n"
"Send/recv losses: %u/%u (%d%%)\n"
"Audio bitrate: %d kbit\n"
"Outgoing queue: %u\n"
// "Packet grouping: %d\n"
"Frame size out/in: %d/%d\n"
"Bytes sent/recvd: %llu/%llu",
jitterBuffer ? jitterBuffer->GetMinPacketCount() : 0, jitterBuffer ? jitterBuffer->GetAverageDelay() : 0, avgLate[0], avgLate[1], avgLate[2],
// (int)(GetAverageRTT()*1000), 0,
(int)(conctl->GetAverageRTT()*1000), (int)(conctl->GetMinimumRTT()*1000),
int(conctl->GetInflightDataSize()), int(conctl->GetCongestionWindow()),
keyFingerprint[0],keyFingerprint[1],keyFingerprint[2],keyFingerprint[3],keyFingerprint[4],keyFingerprint[5],keyFingerprint[6],keyFingerprint[7],
useMTProto2 ? " (MTProto2.0)" : "",
lastSentSeq, lastRemoteAckSeq, lastRemoteSeq,
conctl->GetSendLossCount(), recvLossCount, encoder ? encoder->GetPacketLoss() : 0,
encoder ? (encoder->GetBitrate()/1000) : 0,
static_cast<unsigned int>(unsentStreamPackets),
// audioPacketGrouping,
outgoingStreams[0]->frameDuration, incomingStreams.size()>0 ? incomingStreams[0]->frameDuration : 0,
(long long unsigned int)(stats.bytesSentMobile+stats.bytesSentWifi),
(long long unsigned int)(stats.bytesRecvdMobile+stats.bytesRecvdWifi));
r+=buffer;
return r;
}
const char* VoIPController::GetVersion(){
return LIBTGVOIP_VERSION;
}
int64_t VoIPController::GetPreferredRelayID(){
return preferredRelay;
}
int VoIPController::GetLastError(){
return lastError;
}
void VoIPController::GetStats(TrafficStats *stats){
memcpy(stats, &this->stats, sizeof(TrafficStats));
}
string VoIPController::GetDebugLog(){
map<string, json11::Json> network{
{"type", NetworkTypeToString(networkType)}
};
if(IS_MOBILE_NETWORK(networkType)){
CellularCarrierInfo carrier=GetCarrierInfo();
if(!carrier.name.empty()){
network["carrier"]=carrier.name;
network["country"]=carrier.countryCode;
network["mcc"]=carrier.mcc;
network["mnc"]=carrier.mnc;
}
}else if(networkType==NET_TYPE_WIFI){
#ifdef __ANDROID__
jni::DoWithJNI([&](JNIEnv* env){
jmethodID getWifiInfoMethod=env->GetStaticMethodID(jniUtilitiesClass, "getWifiInfo", "()[I");
jintArray res=static_cast<jintArray>(env->CallStaticObjectMethod(jniUtilitiesClass, getWifiInfoMethod));
if(res){
jint* wifiInfo=env->GetIntArrayElements(res, NULL);
network["rssi"]=wifiInfo[0];
network["link_speed"]=wifiInfo[1];
env->ReleaseIntArrayElements(res, wifiInfo, JNI_ABORT);
}
});
#endif
}
/*vector<json11::Json> lpkts;
for(DebugLoggedPacket& lpkt:debugLoggedPackets){
lpkts.push_back(json11::Json::array{lpkt.timestamp, lpkt.seq, lpkt.length});
}
return json11::Json(json11::Json::object{
{"log_type", "out_packet_stats"},
{"libtgvoip_version", LIBTGVOIP_VERSION},
{"network", network},
{"protocol_version", std::min(peerVersion, PROTOCOL_VERSION)},
{"total_losses", json11::Json::object{
{"s", (int32_t)conctl->GetSendLossCount()},
{"r", (int32_t)recvLossCount}
}},
{"call_duration", GetCurrentTime()-connectionInitTime},
{"out_packet_stats", lpkts}
}).dump();*/
string p2pType="none";
Endpoint& cur=endpoints[currentEndpoint];
if(cur.type==Endpoint::Type::UDP_P2P_INET)
p2pType=cur.IsIPv6Only() ? "inet6" : "inet";
else if(cur.type==Endpoint::Type::UDP_P2P_LAN)
p2pType="lan";
vector<string> problems;
if(lastError==ERROR_TIMEOUT)
problems.push_back("timeout");
if(wasReconnecting)
problems.push_back("reconnecting");
if(wasExtraEC)
problems.push_back("extra_ec");
if(wasEncoderLaggy)
problems.push_back("encoder_lag");
if(!wasEstablished)
problems.push_back("not_inited");
if(wasNetworkHandover)
problems.push_back("network_handover");
ostringstream prefRelay;
prefRelay << preferredRelay;
return json11::Json(json11::Json::object{
{"log_type", "call_stats"},
{"libtgvoip_version", LIBTGVOIP_VERSION},
{"network", network},
{"protocol_version", std::min(peerVersion, PROTOCOL_VERSION)},
{"udp_avail", udpConnectivityState==UDP_AVAILABLE},
{"tcp_used", useTCP},
{"relay_rtt", (int)(endpoints[preferredRelay].averageRTT*1000.0)},
{"p2p_type", p2pType},
{"rtt", (int)(endpoints[currentEndpoint].averageRTT*1000.0)},
{"packet_stats", json11::Json::object{
{"out", (int)seq},
{"in", (int)packetsReceived},
{"lost_out", (int)conctl->GetSendLossCount()},
{"lost_in", (int)recvLossCount}
}},
{"problems", problems},
{"pref_relay", prefRelay.str()}
}).dump();
}
vector<AudioInputDevice> VoIPController::EnumerateAudioInputs(){
vector<AudioInputDevice> devs;
audio::AudioInput::EnumerateDevices(devs);
return devs;
}
vector<AudioOutputDevice> VoIPController::EnumerateAudioOutputs(){
vector<AudioOutputDevice> devs;
audio::AudioOutput::EnumerateDevices(devs);
return devs;
}
void VoIPController::SetCurrentAudioInput(string id){
currentAudioInput=id;
if(audioInput)
audioInput->SetCurrentDevice(id);
}
void VoIPController::SetCurrentAudioOutput(string id){
currentAudioOutput=id;
if(audioOutput)
audioOutput->SetCurrentDevice(id);
}
string VoIPController::GetCurrentAudioInputID(){
return currentAudioInput;
}
string VoIPController::GetCurrentAudioOutputID(){
return currentAudioOutput;
}
void VoIPController::SetProxy(int protocol, string address, uint16_t port, string username, string password){
proxyProtocol=protocol;
proxyAddress=address;
proxyPort=port;
proxyUsername=username;
proxyPassword=password;
}
int VoIPController::GetSignalBarsCount(){
return signalBarsHistory.NonZeroAverage();
}
void VoIPController::SetCallbacks(VoIPController::Callbacks callbacks){
this->callbacks=callbacks;
if(callbacks.connectionStateChanged)
callbacks.connectionStateChanged(this, state);
}
void VoIPController::SetAudioOutputGainControlEnabled(bool enabled){
LOGD("New output AGC state: %d", enabled);
}
uint32_t VoIPController::GetPeerCapabilities(){
return peerCapabilities;
}
void VoIPController::SendGroupCallKey(unsigned char *key){
if(!(peerCapabilities & TGVOIP_PEER_CAP_GROUP_CALLS)){
LOGE("Tried to send group call key but peer isn't capable of them");
return;
}
if(didSendGroupCallKey){
LOGE("Tried to send a group call key repeatedly");
return;
}
if(!isOutgoing){
LOGE("You aren't supposed to send group call key in an incoming call, use VoIPController::RequestCallUpgrade() instead");
return;
}
didSendGroupCallKey=true;
Buffer buf(256);
buf.CopyFrom(key, 0, 256);
SendExtra(buf, EXTRA_TYPE_GROUP_CALL_KEY);
}
void VoIPController::RequestCallUpgrade(){
if(!(peerCapabilities & TGVOIP_PEER_CAP_GROUP_CALLS)){
LOGE("Tried to send group call key but peer isn't capable of them");
return;
}
if(didSendUpgradeRequest){
LOGE("Tried to send upgrade request repeatedly");
return;
}
if(isOutgoing){
LOGE("You aren't supposed to send an upgrade request in an outgoing call, generate an encryption key and use VoIPController::SendGroupCallKey instead");
return;
}
didSendUpgradeRequest=true;
Buffer empty(0);
SendExtra(empty, EXTRA_TYPE_REQUEST_GROUP);
}
void VoIPController::SetEchoCancellationStrength(int strength){
echoCancellationStrength=strength;
if(echoCanceller)
echoCanceller->SetAECStrength(strength);
}
#if defined(TGVOIP_USE_CALLBACK_AUDIO_IO)
void VoIPController::SetAudioDataCallbacks(std::function<void(int16_t*, size_t)> input, std::function<void(int16_t*, size_t)> output){
audioInputDataCallback=input;
audioOutputDataCallback=output;
}
#endif
int VoIPController::GetConnectionState(){
return state;
}
void VoIPController::SetConfig(const Config& cfg){
config=cfg;
if(tgvoipLogFile){
fclose(tgvoipLogFile);
tgvoipLogFile=NULL;
}
if(!config.logFilePath.empty()){
#ifndef _WIN32
tgvoipLogFile=fopen(config.logFilePath.c_str(), "a");
#else
if(_wfopen_s(&tgvoipLogFile, config.logFilePath.c_str(), L"a")!=0){
tgvoipLogFile=NULL;
}
#endif
tgvoip_log_file_write_header(tgvoipLogFile);
}else{
tgvoipLogFile=NULL;
}
if(statsDump){
fclose(statsDump);
statsDump=NULL;
}
if(!config.statsDumpFilePath.empty()){
#ifndef _WIN32
statsDump=fopen(config.statsDumpFilePath.c_str(), "w");
#else
if(_wfopen_s(&statsDump, config.statsDumpFilePath.c_str(), L"w")!=0){
statsDump=NULL;
}
#endif
if(statsDump)
fprintf(statsDump, "Time\tRTT\tLRSeq\tLSSeq\tLASeq\tLostR\tLostS\tCWnd\tBitrate\tLoss%%\tJitter\tJDelay\tAJDelay\n");
//else
// LOGW("Failed to open stats dump file %s for writing", config.statsDumpFilePath.c_str());
}else{
statsDump=NULL;
}
UpdateDataSavingState();
UpdateAudioBitrateLimit();
}
void VoIPController::SetPersistentState(vector<uint8_t> state){
using namespace json11;
if(state.empty())
return;
string jsonErr;
string json=string(state.begin(), state.end());
Json _obj=Json::parse(json, jsonErr);
if(!jsonErr.empty()){
LOGE("Error parsing persistable state: %s", jsonErr.c_str());
return;
}
Json::object obj=_obj.object_items();
if(obj.find("proxy")!=obj.end()){
Json::object proxy=obj["proxy"].object_items();
lastTestedProxyServer=proxy["server"].string_value();
proxySupportsUDP=proxy["udp"].bool_value();
proxySupportsTCP=proxy["tcp"].bool_value();
}
}
vector<uint8_t> VoIPController::GetPersistentState(){
using namespace json11;
Json::object obj=Json::object{
{"ver", 1},
};
if(proxyProtocol==PROXY_SOCKS5){
char pbuf[128];
snprintf(pbuf, sizeof(pbuf), "%s:%u", proxyAddress.c_str(), proxyPort);
obj.insert({"proxy", Json::object{
{"server", string(pbuf)},
{"udp", proxySupportsUDP},
{"tcp", proxySupportsTCP}
}});
}
string _jstr=Json(obj).dump();
const char* jstr=_jstr.c_str();
return vector<uint8_t>(jstr, jstr+strlen(jstr));
}
void VoIPController::SetOutputVolume(float level){
outputVolume.SetLevel(level);
}
void VoIPController::SetInputVolume(float level){
inputVolume.SetLevel(level);
}
#if defined(__APPLE__) && TARGET_OS_OSX
void VoIPController::SetAudioOutputDuckingEnabled(bool enabled){
macAudioDuckingEnabled=enabled;
audio::AudioUnitIO* osxAudio=dynamic_cast<audio::AudioUnitIO*>(audioIO);
if(osxAudio){
osxAudio->SetDuckingEnabled(enabled);
}
}
#endif
#pragma mark - Internal intialization
void VoIPController::InitializeTimers(){
initTimeoutID=messageThread.Post([this]{
LOGW("Init timeout, disconnecting");
lastError=ERROR_TIMEOUT;
SetState(STATE_FAILED);
}, config.initTimeout);
if(!config.statsDumpFilePath.empty()){
messageThread.Post([this]{
if(statsDump && incomingStreams.size()==1){
shared_ptr<JitterBuffer>& jitterBuffer=incomingStreams[0]->jitterBuffer;
//fprintf(statsDump, "Time\tRTT\tLISeq\tLASeq\tCWnd\tBitrate\tJitter\tJDelay\tAJDelay\n");
fprintf(statsDump, "%.3f\t%.3f\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t%.3f\t%.3f\t%.3f\n",
GetCurrentTime()-connectionInitTime,
endpoints.at(currentEndpoint).rtts[0],
lastRemoteSeq,
(uint32_t)seq,
lastRemoteAckSeq,
recvLossCount,
conctl ? conctl->GetSendLossCount() : 0,
conctl ? (int)conctl->GetInflightDataSize() : 0,
encoder ? encoder->GetBitrate() : 0,
encoder ? encoder->GetPacketLoss() : 0,
jitterBuffer ? jitterBuffer->GetLastMeasuredJitter() : 0,
jitterBuffer ? jitterBuffer->GetLastMeasuredDelay()*0.06 : 0,
jitterBuffer ? jitterBuffer->GetAverageDelay()*0.06 : 0);
}
}, 0.1, 0.1);
}
messageThread.Post(std::bind(&VoIPController::SendRelayPings, this), 0.0, 2.0);
}
void VoIPController::RunSendThread(){
InitializeAudio();
InitializeTimers();
SendInit();
LOGI("=== send thread exiting ===");
}
#pragma mark - Miscellaneous
void VoIPController::SetState(int state){