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Code Issues Releases Wiki Activity

Discard call in case of an error.

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Also add a couple of call error messages.
This commit is contained in:
John Preston
2017-05-09 15:06:21 +03:00
parent 061bd109d2
commit c78cc331d1
4 changed files with 65 additions and 35 deletions
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83
Telegram/SourceFiles/calls/calls_call.cpp
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@@ -93,7 +93,7 @@ void Call::generateModExpFirst(base::const_byte_span randomSeed) {
auto first = MTP::CreateModExp(_dhConfig.g, _dhConfig.p, randomSeed);
if (first.modexp.empty()) {
LOG(("Call Error: Could not compute mod-exp first."));
setState(State::Failed);
finish(FinishType::Failed);
return;
}
@@ -121,7 +121,7 @@ void Call::start(base::const_byte_span random) {
t_assert(!_dhConfig.p.empty());
generateModExpFirst(random);
if (_state != State::Failed) {
if (_state != State::Failed && _state != State::FailedHangingUp) {
if (_type == Type::Outgoing) {
startOutgoing();
} else {
@@ -136,11 +136,14 @@ void Call::startOutgoing() {
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);
setState(State::Waiting);
auto &call = result.c_phone_phoneCall();
App::feedUsers(call.vusers);
if (call.vphone_call.type() != mtpc_phoneCallWaiting) {
LOG(("Call Error: Expected phoneCallWaiting in response to phone.requestCall()"));
setState(State::Failed);
finish(FinishType::Failed);
return;
}
@@ -148,10 +151,12 @@ void Call::startOutgoing() {
auto &waitingCall = phoneCall.c_phoneCallWaiting();
_id = waitingCall.vid.v;
_accessHash = waitingCall.vaccess_hash.v;
setState(State::Waiting);
if (_finishAfterRequestingCall) {
hangup();
if (_finishAfterRequestingCall != FinishType::None) {
if (_finishAfterRequestingCall == FinishType::Failed) {
finish(_finishAfterRequestingCall);
} else {
hangup();
}
return;
}
@@ -188,7 +193,7 @@ void Call::answer() {
App::feedUsers(call.vusers);
if (call.vphone_call.type() != mtpc_phoneCallWaiting) {
LOG(("Call Error: Expected phoneCallWaiting in response to phone.acceptCall()"));
setState(State::Failed);
finish(FinishType::Failed);
return;
}
@@ -218,7 +223,7 @@ void Call::hangup() {
auto declined = (_state == State::WaitingIncoming);
auto reason = missed ? MTP_phoneCallDiscardReasonMissed() :
declined ? MTP_phoneCallDiscardReasonBusy() : MTP_phoneCallDiscardReasonHangup();
finish(reason);
finish(FinishType::Ended, reason);
}
}
@@ -282,7 +287,7 @@ bool Call::handleUpdate(const MTPPhoneCall &call) {
}
if (AuthSession::CurrentUserId() != data.vparticipant_id.v) {
LOG(("Call Error: Wrong call participant_id %1, expected %2.").arg(data.vparticipant_id.v).arg(AuthSession::CurrentUserId()));
setState(State::Failed);
finish(FinishType::Failed);
return true;
}
_id = data.vid.v;
@@ -291,7 +296,7 @@ bool Call::handleUpdate(const MTPPhoneCall &call) {
auto gaHashBytes = bytesFromMTP(data.vg_a_hash);
if (gaHashBytes.size() != _gaHash.size()) {
LOG(("Call Error: Wrong g_a_hash size %1, expected %2.").arg(gaHashBytes.size()).arg(_gaHash.size()));
setState(State::Failed);
finish(FinishType::Failed);
return true;
}
base::copy_bytes(gsl::make_span(_gaHash), gaHashBytes);
@@ -303,7 +308,7 @@ bool Call::handleUpdate(const MTPPhoneCall &call) {
return false;
}
LOG(("Call Error: phoneCallEmpty received."));
setState(State::Failed);
finish(FinishType::Failed);
} return true;
case mtpc_phoneCallWaiting: {
@@ -358,7 +363,7 @@ bool Call::handleUpdate(const MTPPhoneCall &call) {
}
if (_type != Type::Outgoing) {
LOG(("Call Error: Unexpected phoneCallAccepted for an incoming call."));
setState(State::Failed);
finish(FinishType::Failed);
} else if (checkCallFields(data)) {
confirmAcceptedCall(data);
}
@@ -375,7 +380,7 @@ void Call::confirmAcceptedCall(const MTPDphoneCallAccepted &call) {
auto computedAuthKey = MTP::CreateAuthKey(firstBytes, _randomPower, _dhConfig.p);
if (computedAuthKey.empty()) {
LOG(("Call Error: Could not compute mod-exp final."));
setState(State::Failed);
finish(FinishType::Failed);
return;
}
@@ -389,7 +394,7 @@ void Call::confirmAcceptedCall(const MTPDphoneCallAccepted &call) {
App::feedUsers(call.vusers);
if (call.vphone_call.type() != mtpc_phoneCall) {
LOG(("Call Error: Expected phoneCall in response to phone.confirmCall()"));
setState(State::Failed);
finish(FinishType::Failed);
return;
}
@@ -405,7 +410,7 @@ void Call::startConfirmedCall(const MTPDphoneCall &call) {
auto firstBytes = bytesFromMTP(call.vg_a_or_b);
if (_gaHash != openssl::Sha256(firstBytes)) {
LOG(("Call Error: Wrong g_a hash received."));
setState(State::Failed);
finish(FinishType::Failed);
return;
}
_ga = base::byte_vector(firstBytes.begin(), firstBytes.end());
@@ -413,7 +418,7 @@ void Call::startConfirmedCall(const MTPDphoneCall &call) {
auto computedAuthKey = MTP::CreateAuthKey(firstBytes, _randomPower, _dhConfig.p);
if (computedAuthKey.empty()) {
LOG(("Call Error: Could not compute mod-exp final."));
setState(State::Failed);
finish(FinishType::Failed);
return;
}
@@ -504,7 +509,7 @@ void Call::handleControllerStateChange(tgvoip::VoIPController *controller, int s
template <typename T>
bool Call::checkCallCommonFields(const T &call) {
auto checkFailed = [this] {
setState(State::Failed);
finish(FinishType::Failed);
return false;
};
if (call.vaccess_hash.v != _accessHash) {
@@ -530,7 +535,7 @@ bool Call::checkCallFields(const MTPDphoneCall &call) {
}
if (call.vkey_fingerprint.v != _keyFingerprint) {
LOG(("Call Error: Wrong call fingerprint."));
setState(State::Failed);
finish(FinishType::Failed);
return false;
}
return true;
@@ -541,6 +546,12 @@ bool Call::checkCallFields(const MTPDphoneCallAccepted &call) {
}
void Call::setState(State state) {
if (_state == State::Failed) {
return;
}
if (_state == State::FailedHangingUp && state != State::Failed) {
return;
}
if (_state != state) {
_state = state;
_stateChanged.notify(state, true);
@@ -583,31 +594,37 @@ void Call::setState(State state) {
}
}
void Call::finish(const MTPPhoneCallDiscardReason &reason) {
void Call::finish(FinishType type, const MTPPhoneCallDiscardReason &reason) {
Expects(type != FinishType::None);
auto finalState = (type == FinishType::Ended) ? State::Ended : State::Failed;
auto hangupState = (type == FinishType::Ended) ? State::HangingUp : State::FailedHangingUp;
if (_state == State::Requesting) {
_finishByTimeoutTimer.call(kHangupTimeoutMs, [this] { setState(State::Ended); });
_finishAfterRequestingCall = true;
_finishByTimeoutTimer.call(kHangupTimeoutMs, [this, finalState] { setState(finalState); });
_finishAfterRequestingCall = type;
return;
}
if (_state == State::HangingUp || _state == State::Ended) {
if (_state == State::HangingUp
|| _state == State::FailedHangingUp
|| _state == State::Ended
|| _state == State::Failed) {
return;
}
if (!_id) {
setState(State::Ended);
setState(finalState);
return;
}
setState(State::HangingUp);
setState(hangupState);
auto duration = getDurationMs() / 1000;
auto connectionId = _controller ? _controller->GetPreferredRelayID() : 0;
_finishByTimeoutTimer.call(kHangupTimeoutMs, [this] { setState(State::Ended); });
request(MTPphone_DiscardCall(MTP_inputPhoneCall(MTP_long(_id), MTP_long(_accessHash)), MTP_int(duration), reason, MTP_long(connectionId))).done([this](const MTPUpdates &result) {
_finishByTimeoutTimer.call(kHangupTimeoutMs, [this, finalState] { setState(finalState); });
request(MTPphone_DiscardCall(MTP_inputPhoneCall(MTP_long(_id), MTP_long(_accessHash)), MTP_int(duration), reason, MTP_long(connectionId))).done([this, finalState](const MTPUpdates &result) {
// This could be destroyed by updates, so we set Ended after
// updates being handled, but in a guarded way.
InvokeQueued(this, [this] { setState(State::Ended); });
InvokeQueued(this, [this, finalState] { setState(finalState); });
App::main()->sentUpdatesReceived(result);
}).fail([this](const RPCError &error) {
setState(State::Ended);
}).fail([this, finalState](const RPCError &error) {
setState(finalState);
}).send();
}
@@ -627,14 +644,16 @@ void Call::handleRequestError(const RPCError &error) {
} else if (error.type() == qstr("CALL_PROTOCOL_LAYER_INVALID")) {
Ui::show(Box<InformBox>(lng_call_error_incompatible(lt_user, App::peerName(_user))));
}
setState(State::Failed);
finish(FinishType::Failed);
}
void Call::handleControllerError(int error) {
if (error == TGVOIP_ERROR_INCOMPATIBLE) {
Ui::show(Box<InformBox>(lng_call_error_incompatible(lt_user, App::peerName(_user))));
} else if (error == TGVOIP_ERROR_AUDIO_IO) {
Ui::show(Box<InformBox>(lang(lng_call_error_audio_io)));
}
setState(State::Failed);
finish(FinishType::Failed);
}
void Call::destroyController() {