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Fix contract violation in Call::startIncoming.

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Also fix call answer while dhConfig is not received yet.
This commit is contained in:
John Preston 2017-05-10 10:58:02 +03:00
parent e99739ca0e
commit 8a4a7897a0
2 changed files with 15 additions and 3 deletions
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17
Telegram/SourceFiles/calls/calls_call.cpp
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@ -121,19 +121,21 @@ void Call::start(base::const_byte_span random) {
t_assert(!_dhConfig.p.empty());
generateModExpFirst(random);
if (_state != State::Failed && _state != State::FailedHangingUp) {
if (_state == State::Starting || _state == State::Requesting) {
if (_type == Type::Outgoing) {
startOutgoing();
} else {
startIncoming();
}
} else if (_state == State::ExchangingKeys && _answerAfterDhConfigReceived) {
answer();
}
}
void Call::startOutgoing() {
Expects(_type == Type::Outgoing);
Expects(_state == State::Requesting);
setState(State::Requesting);
request(MTPphone_RequestCall(_user->inputUser, MTP_int(rand_value<int32>()), MTP_bytes(_gaHash), MTP_phoneCallProtocol(MTP_flags(MTPDphoneCallProtocol::Flag::f_udp_p2p | MTPDphoneCallProtocol::Flag::f_udp_reflector), MTP_int(kMinLayer), MTP_int(kMaxLayer)))).done([this](const MTPphone_PhoneCall &result) {
Expects(result.type() == mtpc_phone_phoneCall);
@ -184,9 +186,17 @@ void Call::answer() {
Expects(_type == Type::Incoming);
if (_state != State::Starting && _state != State::WaitingIncoming) {
return;
if (_state != State::ExchangingKeys || !_answerAfterDhConfigReceived) {
return;
}
}
setState(State::ExchangingKeys);
if (_gb.empty()) {
_answerAfterDhConfigReceived = true;
return;
} else {
_answerAfterDhConfigReceived = false;
}
request(MTPphone_AcceptCall(MTP_inputPhoneCall(MTP_long(_id), MTP_long(_accessHash)), MTP_bytes(_gb), _protocol)).done([this](const MTPphone_PhoneCall &result) {
Expects(result.type() == mtpc_phone_phoneCall);
auto &call = result.c_phone_phoneCall();
@ -234,6 +244,7 @@ void Call::redial() {
t_assert(_controller == nullptr);
_type = Type::Outgoing;
setState(State::Requesting);
_answerAfterDhConfigReceived = false;
startWaitingTrack();
_delegate->callRedial(this);
}

1
Telegram/SourceFiles/calls/calls_call.h
View file

@ -161,6 +161,7 @@ private:
Type _type = Type::Outgoing;
State _state = State::Starting;
FinishType _finishAfterRequestingCall = FinishType::None;
bool _answerAfterDhConfigReceived = false;
base::Observable<State> _stateChanged;
TimeMs _startTime = 0;
base::DelayedCallTimer _finishByTimeoutTimer;