@ -15,8 +15,12 @@ namespace msgs = mtx::events::msg;
DeviceVerificationFlow : : DeviceVerificationFlow ( QObject * ,
DeviceVerificationFlow : : Type flow_type ,
TimelineModel * model )
: type ( flow_type )
TimelineModel * model ,
QString userID ,
QString deviceId_ )
: sender ( false )
, type ( flow_type )
, deviceId ( deviceId_ )
, model_ ( model )
{
timeout = new QTimer ( this ) ;
@ -24,6 +28,30 @@ DeviceVerificationFlow::DeviceVerificationFlow(QObject *,
this - > sas = olm : : client ( ) - > sas_init ( ) ;
this - > isMacVerified = false ;
auto user_id = userID . toStdString ( ) ;
this - > toClient = mtx : : identifiers : : parse < mtx : : identifiers : : User > ( user_id ) ;
ChatPage : : instance ( ) - > query_keys (
user_id , [ user_id , this ] ( const UserKeyCache & res , mtx : : http : : RequestErr err ) {
if ( err ) {
nhlog : : net ( ) - > warn ( " failed to query device keys: {},{} " ,
err - > matrix_error . errcode ,
static_cast < int > ( err - > status_code ) ) ;
return ;
}
if ( ! this - > deviceId . isEmpty ( ) & &
( res . device_keys . find ( deviceId . toStdString ( ) ) = = res . device_keys . end ( ) ) ) {
nhlog : : net ( ) - > warn ( " no devices retrieved {} " , user_id ) ;
return ;
}
for ( const auto & [ algorithm , key ] :
res . device_keys . at ( deviceId . toStdString ( ) ) . keys ) {
// TODO: Verify Signatures
this - > device_keys [ algorithm ] = key ;
}
} ) ;
if ( model ) {
connect ( this - > model_ ,
& TimelineModel : : updateFlowEventId ,
@ -36,64 +64,15 @@ DeviceVerificationFlow::DeviceVerificationFlow(QObject *,
}
connect ( timeout , & QTimer : : timeout , this , [ this ] ( ) {
emit timedout ( ) ;
this - > cancelVerification ( DeviceVerificationFlow : : Error : : Timeout ) ;
this - > deleteLater ( ) ;
} ) ;
connect ( this , & DeviceVerificationFlow : : deleteFlow , this , [ this ] ( ) { this - > deleteLater ( ) ; } ) ;
connect (
ChatPage : : instance ( ) ,
& ChatPage : : recievedDeviceVerificationStart ,
connect ( ChatPage : : instance ( ) ,
& ChatPage : : receivedDeviceVerificationStart ,
this ,
[ this ] ( const mtx : : events : : msg : : KeyVerificationStart & msg , std : : string ) {
if ( msg . transaction_id . has_value ( ) ) {
if ( msg . transaction_id . value ( ) ! = this - > transaction_id )
return ;
} else if ( msg . relates_to . has_value ( ) ) {
if ( msg . relates_to . value ( ) . event_id ! = this - > relation . event_id )
return ;
}
if ( ( std : : find ( msg . key_agreement_protocols . begin ( ) ,
msg . key_agreement_protocols . end ( ) ,
" curve25519-hkdf-sha256 " ) ! = msg . key_agreement_protocols . end ( ) ) & &
( std : : find ( msg . hashes . begin ( ) , msg . hashes . end ( ) , " sha256 " ) ! =
msg . hashes . end ( ) ) & &
( std : : find ( msg . message_authentication_codes . begin ( ) ,
msg . message_authentication_codes . end ( ) ,
" hkdf-hmac-sha256 " ) ! = msg . message_authentication_codes . end ( ) ) ) {
if ( std : : find ( msg . short_authentication_string . begin ( ) ,
msg . short_authentication_string . end ( ) ,
mtx : : events : : msg : : SASMethods : : Decimal ) ! =
msg . short_authentication_string . end ( ) ) {
this - > method = DeviceVerificationFlow : : Method : : Emoji ;
} else if ( std : : find ( msg . short_authentication_string . begin ( ) ,
msg . short_authentication_string . end ( ) ,
mtx : : events : : msg : : SASMethods : : Emoji ) ! =
msg . short_authentication_string . end ( ) ) {
this - > method = DeviceVerificationFlow : : Method : : Decimal ;
} else {
this - > cancelVerification (
DeviceVerificationFlow : : Error : : UnknownMethod ) ;
return ;
}
if ( ! sender )
this - > canonical_json = nlohmann : : json ( msg ) ;
else {
if ( utils : : localUser ( ) . toStdString ( ) <
this - > toClient . to_string ( ) ) {
this - > canonical_json = nlohmann : : json ( msg ) ;
}
}
this - > acceptVerificationRequest ( ) ;
} else {
this - > cancelVerification ( DeviceVerificationFlow : : Error : : UnknownMethod ) ;
}
} ) ;
& DeviceVerificationFlow : : handleStartMessage ) ;
connect ( ChatPage : : instance ( ) ,
& ChatPage : : reci evedDeviceVerificationAccept ,
& ChatPage : : receivedDeviceVerificationAccept ,
this ,
[ this ] ( const mtx : : events : : msg : : KeyVerificationAccept & msg ) {
if ( msg . transaction_id . has_value ( ) ) {
@ -111,9 +90,9 @@ DeviceVerificationFlow::DeviceVerificationFlow(QObject *,
msg . short_authentication_string . end ( ) ,
mtx : : events : : msg : : SASMethods : : Emoji ) ! =
msg . short_authentication_string . end ( ) ) {
this - > method = DeviceVerificationFlow : : Method : : Emoji ;
this - > method = mtx : : events : : msg : : SAS Methods : : Emoji ;
} else {
this - > method = DeviceVerificationFlow : : Method : : Decimal ;
this - > method = mtx : : events : : msg : : SAS Methods : : Decimal ;
}
this - > mac_method = msg . message_authentication_code ;
this - > sendVerificationKey ( ) ;
@ -124,7 +103,7 @@ DeviceVerificationFlow::DeviceVerificationFlow(QObject *,
} ) ;
connect ( ChatPage : : instance ( ) ,
& ChatPage : : reci evedDeviceVerificationCancel ,
& ChatPage : : recei vedDeviceVerificationCancel ,
this ,
[ this ] ( const mtx : : events : : msg : : KeyVerificationCancel & msg ) {
if ( msg . transaction_id . has_value ( ) ) {
@ -134,12 +113,13 @@ DeviceVerificationFlow::DeviceVerificationFlow(QObject *,
if ( msg . relates_to . value ( ) . event_id ! = this - > relation . event_id )
return ;
}
this - > deleteLater ( ) ;
emit verificationCanceled ( ) ;
error_ = User ;
emit errorChanged ( ) ;
setState ( Failed ) ;
} ) ;
connect ( ChatPage : : instance ( ) ,
& ChatPage : : reci evedDeviceVerificationKey ,
& ChatPage : : recei vedDeviceVerificationKey ,
this ,
[ this ] ( const mtx : : events : : msg : : KeyVerificationKey & msg ) {
if ( msg . transaction_id . has_value ( ) ) {
@ -149,6 +129,19 @@ DeviceVerificationFlow::DeviceVerificationFlow(QObject *,
if ( msg . relates_to . value ( ) . event_id ! = this - > relation . event_id )
return ;
}
if ( sender ) {
if ( state_ ! = WaitingForOtherToAccept ) {
this - > cancelVerification ( OutOfOrder ) ;
return ;
}
} else {
if ( state_ ! = WaitingForKeys ) {
this - > cancelVerification ( OutOfOrder ) ;
return ;
}
}
this - > sas - > set_their_key ( msg . key ) ;
std : : string info ;
if ( this - > sender = = true ) {
@ -166,31 +159,30 @@ DeviceVerificationFlow::DeviceVerificationFlow(QObject *,
" | " + this - > transaction_id ;
}
if ( this - > method = = DeviceVerificationFlow : : Method : : Emoji ) {
std : : cout < < info < < std : : endl ;
this - > sasList = this - > sas - > generate_bytes_emoji ( info ) ;
} else if ( this - > method = = DeviceVerificationFlow : : Method : : Decimal ) {
this - > sasList = this - > sas - > generate_bytes_decimal ( info ) ;
}
if ( this - > sender = = false ) {
emit this - > verificationRequestAccepted ( this - > method ) ;
this - > sendVerificationKey ( ) ;
} else {
if ( this - > commitment = =
if ( this - > commitment ! =
mtx : : crypto : : bin2base64_unpadded (
mtx : : crypto : : sha256 ( msg . key + this - > canonical_json . dump ( ) ) ) ) {
emit this - > verificationRequestAccepted ( this - > method ) ;
} else {
this - > cancelVerification (
DeviceVerificationFlow : : Error : : MismatchedCommitment ) ;
return ;
}
}
if ( this - > method = = mtx : : events : : msg : : SASMethods : : Emoji ) {
this - > sasList = this - > sas - > generate_bytes_emoji ( info ) ;
setState ( CompareEmoji ) ;
} else if ( this - > method = = mtx : : events : : msg : : SASMethods : : Decimal ) {
this - > sasList = this - > sas - > generate_bytes_decimal ( info ) ;
setState ( CompareNumber ) ;
}
} ) ;
connect (
ChatPage : : instance ( ) ,
& ChatPage : : recievedDeviceVerificationMac ,
& ChatPage : : recei vedDeviceVerificationMac ,
this ,
[ this ] ( const mtx : : events : : msg : : KeyVerificationMac & msg ) {
if ( msg . transaction_id . has_value ( ) ) {
@ -222,26 +214,22 @@ DeviceVerificationFlow::DeviceVerificationFlow(QObject *,
}
key_string = key_string . substr ( 0 , key_string . length ( ) - 1 ) ;
if ( msg . keys = = this - > sas - > calculate_mac ( key_string , info + " KEY_IDS " ) ) {
// uncomment this in future to be compatible with the
// MSC2366 this->sendVerificationDone(); and remove the
// below line
if ( this - > isMacVerified = = true ) {
this - > acceptDevice ( ) ;
} else
this - > isMacVerified = true ;
this - > acceptDevice ( ) ;
} else {
this - > cancelVerification ( DeviceVerificationFlow : : Error : : KeyMismatch ) ;
}
} ) ;
connect ( ChatPage : : instance ( ) ,
& ChatPage : : reci evedDeviceVerificationReady ,
& ChatPage : : recei vedDeviceVerificationReady ,
this ,
[ this ] ( const mtx : : events : : msg : : KeyVerificationReady & msg ) {
if ( ! sender ) {
if ( msg . from_device ! = http : : client ( ) - > device_id ( ) ) {
this - > deleteLater ( ) ;
emit verificationCanceled ( ) ;
error_ = User ;
emit errorChanged ( ) ;
setState ( Failed ) ;
}
return ;
@ -261,7 +249,7 @@ DeviceVerificationFlow::DeviceVerificationFlow(QObject *,
} ) ;
connect ( ChatPage : : instance ( ) ,
& ChatPage : : reci evedDeviceVerificationDone ,
& ChatPage : : recei vedDeviceVerificationDone ,
this ,
[ this ] ( const mtx : : events : : msg : : KeyVerificationDone & msg ) {
if ( msg . transaction_id . has_value ( ) ) {
@ -271,22 +259,85 @@ DeviceVerificationFlow::DeviceVerificationFlow(QObject *,
if ( msg . relates_to . value ( ) . event_id ! = this - > relation . event_id )
return ;
}
this - > acceptDevice ( ) ;
nhlog : : ui ( ) - > info ( " Flow done on other side " ) ;
} ) ;
timeout - > start ( TIMEOUT ) ;
}
QString
DeviceVerificationFlow : : getTransactionId ( )
DeviceVerificationFlow : : state ( )
{
return QString : : fromStdString ( this - > transaction_id ) ;
switch ( state_ ) {
case PromptStartVerification :
return " PromptStartVerification " ;
case CompareEmoji :
return " CompareEmoji " ;
case CompareNumber :
return " CompareNumber " ;
case WaitingForKeys :
return " WaitingForKeys " ;
case WaitingForOtherToAccept :
return " WaitingForOtherToAccept " ;
case WaitingForMac :
return " WaitingForMac " ;
case Success :
return " Success " ;
case Failed :
return " Failed " ;
default :
return " " ;
}
}
void
DeviceVerificationFlow : : next ( )
{
if ( sender ) {
switch ( state_ ) {
case PromptStartVerification :
sendVerificationRequest ( ) ;
break ;
case CompareEmoji :
case CompareNumber :
sendVerificationMac ( ) ;
break ;
case WaitingForKeys :
case WaitingForOtherToAccept :
case WaitingForMac :
case Success :
case Failed :
nhlog : : db ( ) - > error ( " verification: Invalid state transition! " ) ;
break ;
}
} else {
switch ( state_ ) {
case PromptStartVerification :
if ( canonical_json . is_null ( ) )
sendVerificationReady ( ) ;
else // legacy path without request and ready
acceptVerificationRequest ( ) ;
break ;
case CompareEmoji :
[[fallthrough]] ;
case CompareNumber :
sendVerificationMac ( ) ;
break ;
case WaitingForKeys :
case WaitingForOtherToAccept :
case WaitingForMac :
case Success :
case Failed :
nhlog : : db ( ) - > error ( " verification: Invalid state transition! " ) ;
break ;
}
}
}
QString
DeviceVerificationFlow : : getUserId ( )
{
return this - > userId ;
return QString : : fromStdString ( this - > toClient . to_string ( ) ) ;
}
QString
@ -295,18 +346,6 @@ DeviceVerificationFlow::getDeviceId()
return this - > deviceId ;
}
DeviceVerificationFlow : : Method
DeviceVerificationFlow : : getMethod ( )
{
return this - > method ;
}
DeviceVerificationFlow : : Type
DeviceVerificationFlow : : getType ( )
{
return this - > type ;
}
bool
DeviceVerificationFlow : : getSender ( )
{
@ -320,56 +359,58 @@ DeviceVerificationFlow::getSasList()
}
void
DeviceVerificationFlow : : setTransactionId ( QString transaction_id_ )
{
this - > transaction_id = transaction_id_ . toStdString ( ) ;
}
void
DeviceVerificationFlow : : setUserId ( QString userID )
{
this - > userId = userID ;
this - > toClient = mtx : : identifiers : : parse < mtx : : identifiers : : User > ( userID . toStdString ( ) ) ;
auto user_id = userID . toStdString ( ) ;
ChatPage : : instance ( ) - > query_keys (
user_id , [ user_id , this ] ( const UserKeyCache & res , mtx : : http : : RequestErr err ) {
this - > callback_fn ( res , err , user_id ) ;
} ) ;
}
void
DeviceVerificationFlow : : setDeviceId ( QString deviceID )
{
this - > deviceId = deviceID ;
}
void
DeviceVerificationFlow : : setMethod ( DeviceVerificationFlow : : Method method_ )
{
this - > method = method_ ;
}
void
DeviceVerificationFlow : : setType ( Type type_ )
DeviceVerificationFlow : : setEventId ( std : : string event_id_ )
{
this - > type = type_ ;
this - > relation . rel_type = mtx : : common : : RelationType : : Reference ;
this - > relation . event_id = event_id_ ;
this - > transaction_id = event_id_ ;
}
void
DeviceVerificationFlow : : setSender ( bool sender_ )
DeviceVerificationFlow : : handleStartMessage ( const mtx : : events : : msg : : KeyVerificationStart & msg ,
std : : string )
{
this - > sender = sender_ ;
if ( this - > sender )
this - > transaction_id = http : : client ( ) - > generate_txn_id ( ) ;
}
if ( msg . transaction_id . has_value ( ) ) {
if ( msg . transaction_id . value ( ) ! = this - > transaction_id )
return ;
} else if ( msg . relates_to . has_value ( ) ) {
if ( msg . relates_to . value ( ) . event_id ! = this - > relation . event_id )
return ;
}
if ( ( std : : find ( msg . key_agreement_protocols . begin ( ) ,
msg . key_agreement_protocols . end ( ) ,
" curve25519-hkdf-sha256 " ) ! = msg . key_agreement_protocols . end ( ) ) & &
( std : : find ( msg . hashes . begin ( ) , msg . hashes . end ( ) , " sha256 " ) ! = msg . hashes . end ( ) ) & &
( std : : find ( msg . message_authentication_codes . begin ( ) ,
msg . message_authentication_codes . end ( ) ,
" hkdf-hmac-sha256 " ) ! = msg . message_authentication_codes . end ( ) ) ) {
if ( std : : find ( msg . short_authentication_string . begin ( ) ,
msg . short_authentication_string . end ( ) ,
mtx : : events : : msg : : SASMethods : : Emoji ) ! =
msg . short_authentication_string . end ( ) ) {
this - > method = mtx : : events : : msg : : SASMethods : : Emoji ;
} else if ( std : : find ( msg . short_authentication_string . begin ( ) ,
msg . short_authentication_string . end ( ) ,
mtx : : events : : msg : : SASMethods : : Decimal ) ! =
msg . short_authentication_string . end ( ) ) {
this - > method = mtx : : events : : msg : : SASMethods : : Decimal ;
} else {
this - > cancelVerification ( DeviceVerificationFlow : : Error : : UnknownMethod ) ;
return ;
}
if ( ! sender )
this - > canonical_json = nlohmann : : json ( msg ) ;
else {
if ( utils : : localUser ( ) . toStdString ( ) < this - > toClient . to_string ( ) ) {
this - > canonical_json = nlohmann : : json ( msg ) ;
}
}
void
DeviceVerificationFlow : : setEventId ( std : : string event_id_ )
{
this - > relation . rel_type = mtx : : common : : RelationType : : Reference ;
this - > relation . event_id = event_id_ ;
this - > transaction_id = event_id_ ;
if ( state_ ! = PromptStartVerification )
this - > acceptVerificationRequest ( ) ;
} else {
this - > cancelVerification ( DeviceVerificationFlow : : Error : : UnknownMethod ) ;
}
}
//! accepts a verification
@ -382,30 +423,15 @@ DeviceVerificationFlow::acceptVerificationRequest()
req . key_agreement_protocol = " curve25519-hkdf-sha256 " ;
req . hash = " sha256 " ;
req . message_authentication_code = " hkdf-hmac-sha256 " ;
if ( this - > method = = DeviceVerificationFlow : : Method : : Emoji )
if ( this - > method = = mtx : : events : : msg : : SAS Methods : : Emoji )
req . short_authentication_string = { mtx : : events : : msg : : SASMethods : : Emoji } ;
else if ( this - > method = = DeviceVerificationFlow : : Method : : Decimal )
else if ( this - > method = = mtx : : events : : msg : : SAS Methods : : Decimal )
req . short_authentication_string = { mtx : : events : : msg : : SASMethods : : Decimal } ;
req . commitment = mtx : : crypto : : bin2base64_unpadded (
mtx : : crypto : : sha256 ( this - > sas - > public_key ( ) + this - > canonical_json . dump ( ) ) ) ;
if ( this - > type = = DeviceVerificationFlow : : Type : : ToDevice ) {
mtx : : requests : : ToDeviceMessages < mtx : : events : : msg : : KeyVerificationAccept > body ;
req . transaction_id = this - > transaction_id ;
body [ this - > toClient ] [ this - > deviceId . toStdString ( ) ] = req ;
http : : client ( ) - > send_to_device < mtx : : events : : msg : : KeyVerificationAccept > (
this - > transaction_id , body , [ ] ( mtx : : http : : RequestErr err ) {
if ( err )
nhlog : : net ( ) - > warn ( " failed to accept verification request: {} {} " ,
err - > matrix_error . error ,
static_cast < int > ( err - > status_code ) ) ;
} ) ;
} else if ( this - > type = = DeviceVerificationFlow : : Type : : RoomMsg & & model_ ) {
req . relates_to = this - > relation ;
( model_ ) - > sendMessageEvent ( req , mtx : : events : : EventType : : KeyVerificationAccept ) ;
}
send ( req ) ;
setState ( WaitingForKeys ) ;
}
//! responds verification request
void
@ -416,23 +442,8 @@ DeviceVerificationFlow::sendVerificationReady()
req . from_device = http : : client ( ) - > device_id ( ) ;
req . methods = { mtx : : events : : msg : : VerificationMethods : : SASv1 } ;
if ( this - > type = = DeviceVerificationFlow : : Type : : ToDevice ) {
req . transaction_id = this - > transaction_id ;
mtx : : requests : : ToDeviceMessages < mtx : : events : : msg : : KeyVerificationReady > body ;
body [ this - > toClient ] [ this - > deviceId . toStdString ( ) ] = req ;
http : : client ( ) - > send_to_device < mtx : : events : : msg : : KeyVerificationReady > (
this - > transaction_id , body , [ ] ( mtx : : http : : RequestErr err ) {
if ( err )
nhlog : : net ( ) - > warn ( " failed to send verification ready: {} {} " ,
err - > matrix_error . error ,
static_cast < int > ( err - > status_code ) ) ;
} ) ;
} else if ( this - > type = = DeviceVerificationFlow : : Type : : RoomMsg & & model_ ) {
req . relates_to = this - > relation ;
( model_ ) - > sendMessageEvent ( req , mtx : : events : : EventType : : KeyVerificationReady ) ;
}
send ( req ) ;
setState ( WaitingForKeys ) ;
}
//! accepts a verification
void
@ -440,23 +451,7 @@ DeviceVerificationFlow::sendVerificationDone()
{
mtx : : events : : msg : : KeyVerificationDone req ;
if ( this - > type = = DeviceVerificationFlow : : Type : : ToDevice ) {
mtx : : requests : : ToDeviceMessages < mtx : : events : : msg : : KeyVerificationDone > body ;
req . transaction_id = this - > transaction_id ;
body [ this - > toClient ] [ this - > deviceId . toStdString ( ) ] = req ;
http : : client ( ) - > send_to_device < mtx : : events : : msg : : KeyVerificationDone > (
this - > transaction_id , body , [ ] ( mtx : : http : : RequestErr err ) {
if ( err )
nhlog : : net ( ) - > warn ( " failed to send verification done: {} {} " ,
err - > matrix_error . error ,
static_cast < int > ( err - > status_code ) ) ;
} ) ;
} else if ( this - > type = = DeviceVerificationFlow : : Type : : RoomMsg & & model_ ) {
req . relates_to = this - > relation ;
( model_ ) - > sendMessageEvent ( req , mtx : : events : : EventType : : KeyVerificationDone ) ;
}
send ( req ) ;
}
//! starts the verification flow
void
@ -476,20 +471,12 @@ DeviceVerificationFlow::startVerificationRequest()
mtx : : requests : : ToDeviceMessages < mtx : : events : : msg : : KeyVerificationStart > body ;
req . transaction_id = this - > transaction_id ;
this - > canonical_json = nlohmann : : json ( req ) ;
body [ this - > toClient ] [ this - > deviceId . toStdString ( ) ] = req ;
http : : client ( ) - > send_to_device < mtx : : events : : msg : : KeyVerificationStart > (
this - > transaction_id , body , [ body ] ( mtx : : http : : RequestErr err ) {
if ( err )
nhlog : : net ( ) - > warn ( " failed to start verification request: {} {} " ,
err - > matrix_error . error ,
static_cast < int > ( err - > status_code ) ) ;
} ) ;
} else if ( this - > type = = DeviceVerificationFlow : : Type : : RoomMsg & & model_ ) {
req . relates_to = this - > relation ;
this - > canonical_json = nlohmann : : json ( req ) ;
( model_ ) - > sendMessageEvent ( req , mtx : : events : : EventType : : KeyVerificationStart ) ;
}
send ( req ) ;
setState ( WaitingForOtherToAccept ) ;
}
//! sends a verification request
void
@ -503,28 +490,18 @@ DeviceVerificationFlow::sendVerificationRequest()
if ( this - > type = = DeviceVerificationFlow : : Type : : ToDevice ) {
QDateTime currentTime = QDateTime : : currentDateTimeUtc ( ) ;
req . transaction_id = this - > transaction_id ;
req . timestamp = ( uint64_t ) currentTime . toMSecsSinceEpoch ( ) ;
mtx : : requests : : ToDeviceMessages < mtx : : events : : msg : : KeyVerificationRequest > body ;
body [ this - > toClient ] [ this - > deviceId . toStdString ( ) ] = req ;
http : : client ( ) - > send_to_device < mtx : : events : : msg : : KeyVerificationRequest > (
this - > transaction_id , body , [ ] ( mtx : : http : : RequestErr err ) {
if ( err )
nhlog : : net ( ) - > warn ( " failed to send verification request: {} {} " ,
err - > matrix_error . error ,
static_cast < int > ( err - > status_code ) ) ;
} ) ;
} else if ( this - > type = = DeviceVerificationFlow : : Type : : RoomMsg & & model_ ) {
req . to = this - > userId . toStdS tring( ) ;
req . to = this - > toClient . to_string ( ) ;
req . msgtype = " m.key.verification.request " ;
req . body = " User is requesting to verify keys with you. However, your client does "
" not support this method, so you will need to use the legacy method of "
" key verification. " ;
( model_ ) - > sendMessageEvent ( req , mtx : : events : : EventType : : KeyVerificationRequest ) ;
}
send ( req ) ;
setState ( WaitingForOtherToAccept ) ;
}
//! cancels a verification flow
void
@ -534,7 +511,7 @@ DeviceVerificationFlow::cancelVerification(DeviceVerificationFlow::Error error_c
if ( error_code = = DeviceVerificationFlow : : Error : : UnknownMethod ) {
req . code = " m.unknown_method " ;
req . reason = " unknown method reci eved " ;
req . reason = " unknown method recei ved " ;
} else if ( error_code = = DeviceVerificationFlow : : Error : : MismatchedCommitment ) {
req . code = " m.mismatched_commitment " ;
req . reason = " commitment didn't match " ;
@ -550,42 +527,16 @@ DeviceVerificationFlow::cancelVerification(DeviceVerificationFlow::Error error_c
} else if ( error_code = = DeviceVerificationFlow : : Error : : User ) {
req . code = " m.user " ;
req . reason = " user cancelled the verification " ;
} else if ( error_code = = DeviceVerificationFlow : : Error : : OutOfOrder ) {
req . code = " m.unexpected_message " ;
req . reason = " received messages out of order " ;
}
emit this - > verificationCanceled ( ) ;
if ( this - > type = = DeviceVerificationFlow : : Type : : ToDevice ) {
req . transaction_id = this - > transaction_id ;
mtx : : requests : : ToDeviceMessages < mtx : : events : : msg : : KeyVerificationCancel > body ;
body [ this - > toClient ] [ deviceId . toStdString ( ) ] = req ;
this - > error_ = error_code ;
emit errorChanged ( ) ;
this - > setState ( Failed ) ;
http : : client ( ) - > send_to_device < mtx : : events : : msg : : KeyVerificationCancel > (
this - > transaction_id , body , [ this ] ( mtx : : http : : RequestErr err ) {
if ( err )
nhlog : : net ( ) - > warn ( " failed to cancel verification request: {} {} " ,
err - > matrix_error . error ,
static_cast < int > ( err - > status_code ) ) ;
this - > deleteLater ( ) ;
} ) ;
} else if ( this - > type = = DeviceVerificationFlow : : Type : : RoomMsg & & model_ ) {
req . relates_to = this - > relation ;
( model_ ) - > sendMessageEvent ( req , mtx : : events : : EventType : : KeyVerificationCancel ) ;
this - > deleteLater ( ) ;
}
// TODO : Handle Blocking user better
// auto verified_cache = cache::getVerifiedCache(this->userId.toStdString());
// if (verified_cache.has_value()) {
// verified_cache->device_blocked.push_back(this->deviceId.toStdString());
// cache::setVerifiedCache(this->userId.toStdString(),
// verified_cache.value());
// } else {
// cache::setVerifiedCache(
// this->userId.toStdString(),
// DeviceVerifiedCache{{}, {}, {this->deviceId.toStdString()}});
// }
send ( req ) ;
}
//! sends the verification key
void
@ -595,23 +546,7 @@ DeviceVerificationFlow::sendVerificationKey()
req . key = this - > sas - > public_key ( ) ;
if ( this - > type = = DeviceVerificationFlow : : Type : : ToDevice ) {
mtx : : requests : : ToDeviceMessages < mtx : : events : : msg : : KeyVerificationKey > body ;
req . transaction_id = this - > transaction_id ;
body [ this - > toClient ] [ deviceId . toStdString ( ) ] = req ;
http : : client ( ) - > send_to_device < mtx : : events : : msg : : KeyVerificationKey > (
this - > transaction_id , body , [ ] ( mtx : : http : : RequestErr err ) {
if ( err )
nhlog : : net ( ) - > warn ( " failed to send verification key: {} {} " ,
err - > matrix_error . error ,
static_cast < int > ( err - > status_code ) ) ;
} ) ;
} else if ( this - > type = = DeviceVerificationFlow : : Type : : RoomMsg & & model_ ) {
req . relates_to = this - > relation ;
( model_ ) - > sendMessageEvent ( req , mtx : : events : : EventType : : KeyVerificationKey ) ;
}
send ( req ) ;
}
mtx : : events : : msg : : KeyVerificationMac
@ -660,68 +595,102 @@ DeviceVerificationFlow::sendVerificationMac()
this - > transaction_id ,
key_list ) ;
if ( this - > type = = DeviceVerificationFlow : : Type : : ToDevice ) {
mtx : : requests : : ToDeviceMessages < mtx : : events : : msg : : KeyVerificationMac > body ;
req . transaction_id = this - > transaction_id ;
body [ this - > toClient ] [ deviceId . toStdString ( ) ] = req ;
http : : client ( ) - > send_to_device < mtx : : events : : msg : : KeyVerificationMac > (
this - > transaction_id , body , [ this ] ( mtx : : http : : RequestErr err ) {
if ( err )
nhlog : : net ( ) - > warn ( " failed to send verification MAC: {} {} " ,
err - > matrix_error . error ,
static_cast < int > ( err - > status_code ) ) ;
send ( req ) ;
if ( this - > isMacVerified = = true )
this - > acceptDevice ( ) ;
else
this - > isMacVerified = true ;
} ) ;
} else if ( this - > type = = DeviceVerificationFlow : : Type : : RoomMsg & & model_ ) {
req . relates_to = this - > relation ;
( model_ ) - > sendMessageEvent ( req , mtx : : events : : EventType : : KeyVerificationMac ) ;
}
setState ( WaitingForMac ) ;
acceptDevice ( ) ;
}
//! Completes the verification flow
void
DeviceVerificationFlow : : acceptDevice ( )
{
cache : : markDeviceVerified ( this - > userId . toStdString ( ) , this - > deviceId . toStdString ( ) ) ;
if ( ! isMacVerified ) {
setState ( WaitingForMac ) ;
} else if ( state_ = = WaitingForMac ) {
cache : : markDeviceVerified ( this - > toClient . to_string ( ) , this - > deviceId . toStdString ( ) ) ;
this - > sendVerificationDone ( ) ;
setState ( Success ) ;
}
}
void
DeviceVerificationFlow : : unverify ( )
{
cache : : markDeviceUnverified ( this - > toClient . to_string ( ) , this - > deviceId . toStdString ( ) ) ;
emit deviceVerified ( ) ;
emit refreshProfile ( ) ;
this - > deleteLater ( ) ;
}
//! callback function to keep track of devices
void
DeviceVerificationFlow : : callback_fn ( const UserKeyCache & res ,
mtx : : http : : RequestErr err ,
std : : string user_id )
QSharedPointer < DeviceVerificationFlow >
DeviceVerificationFlow : : NewInRoomVerification ( QObject * parent_ ,
TimelineModel * timelineModel_ ,
const mtx : : events : : msg : : KeyVerificationRequest & msg ,
QString other_user_ ,
QString event_id_ )
{
if ( err ) {
nhlog : : net ( ) - > warn ( " failed to query device keys: {},{} " ,
err - > matrix_error . errcode ,
static_cast < int > ( err - > status_code ) ) ;
return ;
}
QSharedPointer < DeviceVerificationFlow > flow (
new DeviceVerificationFlow ( parent_ , Type : : RoomMsg , timelineModel_ , other_user_ , " " ) ) ;
if ( res . device_keys . empty ( ) | |
( res . device_keys . find ( deviceId . toStdString ( ) ) = = res . device_keys . end ( ) ) ) {
nhlog : : net ( ) - > warn ( " no devices retrieved {} " , user_id ) ;
return ;
flow - > event_id = event_id_ . toStdString ( ) ;
if ( std : : find ( msg . methods . begin ( ) ,
msg . methods . end ( ) ,
mtx : : events : : msg : : VerificationMethods : : SASv1 ) = = msg . methods . end ( ) ) {
flow - > cancelVerification ( UnknownMethod ) ;
}
for ( const auto & [ algorithm , key ] : res . device_keys . at ( deviceId . toStdString ( ) ) . keys ) {
// TODO: Verify Signatures
this - > device_keys [ algorithm ] = key ;
return flow ;
}
QSharedPointer < DeviceVerificationFlow >
DeviceVerificationFlow : : NewToDeviceVerification ( QObject * parent_ ,
const mtx : : events : : msg : : KeyVerificationRequest & msg ,
QString other_user_ ,
QString txn_id_ )
{
QSharedPointer < DeviceVerificationFlow > flow ( new DeviceVerificationFlow (
parent_ , Type : : ToDevice , nullptr , other_user_ , QString : : fromStdString ( msg . from_device ) ) ) ;
flow - > transaction_id = txn_id_ . toStdString ( ) ;
if ( std : : find ( msg . methods . begin ( ) ,
msg . methods . end ( ) ,
mtx : : events : : msg : : VerificationMethods : : SASv1 ) = = msg . methods . end ( ) ) {
flow - > cancelVerification ( UnknownMethod ) ;
}
return flow ;
}
QSharedPointer < DeviceVerificationFlow >
DeviceVerificationFlow : : NewToDeviceVerification ( QObject * parent_ ,
const mtx : : events : : msg : : KeyVerificationStart & msg ,
QString other_user_ ,
QString txn_id_ )
{
QSharedPointer < DeviceVerificationFlow > flow ( new DeviceVerificationFlow (
parent_ , Type : : ToDevice , nullptr , other_user_ , QString : : fromStdString ( msg . from_device ) ) ) ;
flow - > transaction_id = txn_id_ . toStdString ( ) ;
void
DeviceVerificationFlow : : unverify ( )
flow - > handleStartMessage ( msg , " " ) ;
return flow ;
}
QSharedPointer < DeviceVerificationFlow >
DeviceVerificationFlow : : InitiateUserVerification ( QObject * parent_ ,
TimelineModel * timelineModel_ ,
QString userid )
{
cache : : markDeviceUnverified ( this - > userId . toStdString ( ) , this - > deviceId . toStdString ( ) ) ;
QSharedPointer < DeviceVerificationFlow > flow (
new DeviceVerificationFlow ( parent_ , Type : : RoomMsg , timelineModel_ , userid , " " ) ) ;
flow - > sender = true ;
return flow ;
}
QSharedPointer < DeviceVerificationFlow >
DeviceVerificationFlow : : InitiateDeviceVerification ( QObject * parent_ , QString userid , QString device )
{
QSharedPointer < DeviceVerificationFlow > flow (
new DeviceVerificationFlow ( parent_ , Type : : ToDevice , nullptr , userid , device ) ) ;
emit refreshProfile ( ) ;
flow - > sender = true ;
flow - > transaction_id = http : : client ( ) - > generate_txn_id ( ) ;
return flow ;
}
Nicolas Werner
4 years ago