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vincetranvincetran
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Revert "feat(predictions): Add support for a no light freshness challenge" (#2868)
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-839
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14 files changed

+93
-839
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‎aws-predictions/src/main/java/com/amplifyframework/predictions/aws/exceptions/FaceLivenessUnsupportedChallengeTypeException.kt

Lines changed: 0 additions & 26 deletions
This file was deleted.

‎aws-predictions/src/main/java/com/amplifyframework/predictions/aws/http/LivenessWebSocket.kt

Lines changed: 25 additions & 115 deletions
Original file line numberDiff line numberDiff line change
@@ -30,22 +30,18 @@ import com.amplifyframework.predictions.PredictionsException
3030
import com.amplifyframework.predictions.aws.BuildConfig
3131
import com.amplifyframework.predictions.aws.exceptions.AccessDeniedException
3232
import com.amplifyframework.predictions.aws.exceptions.FaceLivenessSessionNotFoundException
33-
import com.amplifyframework.predictions.aws.exceptions.FaceLivenessUnsupportedChallengeTypeException
3433
import com.amplifyframework.predictions.aws.models.liveness.BoundingBox
3534
import com.amplifyframework.predictions.aws.models.liveness.ClientChallenge
3635
import com.amplifyframework.predictions.aws.models.liveness.ClientSessionInformationEvent
3736
import com.amplifyframework.predictions.aws.models.liveness.ColorDisplayed
3837
import com.amplifyframework.predictions.aws.models.liveness.FaceMovementAndLightClientChallenge
39-
import com.amplifyframework.predictions.aws.models.liveness.FaceMovementClientChallenge
4038
import com.amplifyframework.predictions.aws.models.liveness.FreshnessColor
4139
import com.amplifyframework.predictions.aws.models.liveness.InitialFace
4240
import com.amplifyframework.predictions.aws.models.liveness.InvalidSignatureException
4341
import com.amplifyframework.predictions.aws.models.liveness.LivenessResponseStream
4442
import com.amplifyframework.predictions.aws.models.liveness.SessionInformation
4543
import com.amplifyframework.predictions.aws.models.liveness.TargetFace
4644
import com.amplifyframework.predictions.aws.models.liveness.VideoEvent
47-
import com.amplifyframework.predictions.models.Challenge
48-
import com.amplifyframework.predictions.models.FaceLivenessChallengeType
4945
import com.amplifyframework.predictions.models.FaceLivenessSessionInformation
5046
import com.amplifyframework.util.UserAgent
5147
import java.net.URI
@@ -77,16 +73,12 @@ internal class LivenessWebSocket(
7773
val credentialsProvider: CredentialsProvider,
7874
val endpoint: String,
7975
val region: String,
80-
val clientSessionInformation: FaceLivenessSessionInformation,
76+
val sessionInformation: FaceLivenessSessionInformation,
8177
val livenessVersion: String?,
82-
val onSessionResponseReceived: Consumer<SessionResponse>,
78+
val onSessionInformationReceived: Consumer<SessionInformation>,
8379
val onErrorReceived: Consumer<PredictionsException>,
8480
val onComplete: Action
8581
) {
86-
internal data class SessionResponse(
87-
val faceLivenessSession: SessionInformation,
88-
val livenessChallengeType: FaceLivenessChallengeType
89-
)
9082

9183
private val signer = AWSV4Signer()
9284
private var credentials: Credentials? = null
@@ -102,7 +94,6 @@ internal class LivenessWebSocket(
10294
@VisibleForTesting
10395
internal var webSocket: WebSocket? = null
10496
internal val challengeId = UUID.randomUUID().toString()
105-
var challengeType: FaceLivenessChallengeType? = null
10697
private var initialDetectedFace: BoundingBox? = null
10798
private var faceDetectedStart = 0L
10899
private var videoStartTimestamp = 0L
@@ -154,34 +145,10 @@ internal class LivenessWebSocket(
154145
try {
155146
when (val response = LivenessEventStream.decode(bytes, json)) {
156147
is LivenessResponseStream.Event -> {
157-
if (response.challengeEvent != null) {
158-
challengeType = response.challengeEvent.challengeType
159-
} else if (response.serverSessionInformationEvent != null) {
160-
161-
val clientRequestedOldLightChallenge = clientSessionInformation.challengeVersions
162-
.any { it == Challenge.FaceMovementAndLightChallenge("1.0.0") }
163-
164-
if (challengeType == null && clientRequestedOldLightChallenge) {
165-
// For the 1.0.0 version of FaceMovementAndLight challenge, backend doesn't send a
166-
// ChallengeEvent so we need to manually check and set it if that specific challenge
167-
// was requested.
168-
challengeType = FaceLivenessChallengeType.FaceMovementAndLightChallenge
169-
}
170-
171-
// If challengeType hasn't been initialized by this point it's because server sent an
172-
// unsupported challenge type so return an error to the client and close the web socket.
173-
val resolvedChallengeType = challengeType
174-
if (resolvedChallengeType == null) {
175-
webSocketError = FaceLivenessUnsupportedChallengeTypeException()
176-
destroy(UNSUPPORTED_CHALLENGE_CLOSURE_STATUS_CODE)
177-
} else {
178-
onSessionResponseReceived.accept(
179-
SessionResponse(
180-
response.serverSessionInformationEvent.sessionInformation,
181-
resolvedChallengeType
182-
)
183-
)
184-
}
148+
if (response.serverSessionInformationEvent != null) {
149+
onSessionInformationReceived.accept(
150+
response.serverSessionInformationEvent.sessionInformation
151+
)
185152
} else if (response.disconnectionEvent != null) {
186153
this@LivenessWebSocket.webSocket?.close(
187154
NORMAL_SOCKET_CLOSURE_STATUS_CODE,
@@ -391,26 +358,16 @@ internal class LivenessWebSocket(
391358
// Send initial ClientSessionInformationEvent
392359
videoStartTimestamp = adjustedDate(videoStartTime)
393360
initialDetectedFace = BoundingBox(
394-
left = initialFaceRect.left / clientSessionInformation.videoWidth,
395-
top = initialFaceRect.top / clientSessionInformation.videoHeight,
396-
height = initialFaceRect.height() / clientSessionInformation.videoHeight,
397-
width = initialFaceRect.width() / clientSessionInformation.videoWidth
361+
left = initialFaceRect.left / sessionInformation.videoWidth,
362+
top = initialFaceRect.top / sessionInformation.videoHeight,
363+
height = initialFaceRect.height() / sessionInformation.videoHeight,
364+
width = initialFaceRect.width() / sessionInformation.videoWidth
398365
)
399366
faceDetectedStart = adjustedDate(videoStartTime)
400-
401-
val resolvedChallengeType = challengeType
402-
if (resolvedChallengeType == null) {
403-
onErrorReceived.accept(
404-
PredictionsException(
405-
"Failed to send an initial face detected event",
406-
AmplifyException.TODO_RECOVERY_SUGGESTION
407-
)
408-
)
409-
} else {
410-
val clientInfoEvent =
411-
ClientSessionInformationEvent(
412-
challenge = buildClientChallenge(
413-
challengeType = resolvedChallengeType,
367+
val clientInfoEvent =
368+
ClientSessionInformationEvent(
369+
challenge = ClientChallenge(
370+
faceMovementAndLightChallenge = FaceMovementAndLightClientChallenge(
414371
challengeId = challengeId,
415372
initialFace = InitialFace(
416373
boundingBox = initialDetectedFace!!,
@@ -419,23 +376,14 @@ internal class LivenessWebSocket(
419376
videoStartTimestamp = videoStartTimestamp
420377
)
421378
)
422-
sendClientInfoEvent(clientInfoEvent)
423-
}
379+
)
380+
sendClientInfoEvent(clientInfoEvent)
424381
}
425382

426383
fun sendFinalEvent(targetFaceRect: RectF, faceMatchedStart: Long, faceMatchedEnd: Long) {
427-
val resolvedChallengeType = challengeType
428-
if (resolvedChallengeType == null) {
429-
onErrorReceived.accept(
430-
PredictionsException(
431-
"Failed to send an initial face detected event",
432-
AmplifyException.TODO_RECOVERY_SUGGESTION
433-
)
434-
)
435-
} else {
436-
val finalClientInfoEvent = ClientSessionInformationEvent(
437-
challenge = buildClientChallenge(
438-
challengeType = resolvedChallengeType,
384+
val finalClientInfoEvent = ClientSessionInformationEvent(
385+
challenge = ClientChallenge(
386+
FaceMovementAndLightClientChallenge(
439387
challengeId = challengeId,
440388
videoEndTimestamp = videoEndTimestamp,
441389
initialFace = InitialFace(
@@ -446,16 +394,16 @@ internal class LivenessWebSocket(
446394
faceDetectedInTargetPositionStartTimestamp = adjustedDate(faceMatchedStart),
447395
faceDetectedInTargetPositionEndTimestamp = adjustedDate(faceMatchedEnd),
448396
boundingBox = BoundingBox(
449-
left = targetFaceRect.left / clientSessionInformation.videoWidth,
450-
top = targetFaceRect.top / clientSessionInformation.videoHeight,
451-
height = targetFaceRect.height() / clientSessionInformation.videoHeight,
452-
width = targetFaceRect.width() / clientSessionInformation.videoWidth
397+
left = targetFaceRect.left / sessionInformation.videoWidth,
398+
top = targetFaceRect.top / sessionInformation.videoHeight,
399+
height = targetFaceRect.height() / sessionInformation.videoHeight,
400+
width = targetFaceRect.width() / sessionInformation.videoWidth
453401
)
454402
)
455403
)
456404
)
457-
sendClientInfoEvent(finalClientInfoEvent)
458-
}
405+
)
406+
sendClientInfoEvent(finalClientInfoEvent)
459407
}
460408

461409
fun sendColorDisplayedEvent(
@@ -575,46 +523,8 @@ internal class LivenessWebSocket(
575523

576524
private fun isTimeDiffSafe(diffInMillis: Long) = kotlin.math.abs(diffInMillis) < FOUR_MINUTES
577525

578-
private fun buildClientChallenge(
579-
challengeType: FaceLivenessChallengeType,
580-
challengeId: String,
581-
videoStartTimestamp: Long? = null,
582-
videoEndTimestamp: Long? = null,
583-
initialFace: InitialFace? = null,
584-
targetFace: TargetFace? = null,
585-
colorDisplayed: ColorDisplayed? = null
586-
): ClientChallenge = when (challengeType) {
587-
FaceLivenessChallengeType.FaceMovementAndLightChallenge -> {
588-
ClientChallenge(
589-
faceMovementAndLightChallenge = FaceMovementAndLightClientChallenge(
590-
challengeId = challengeId,
591-
videoStartTimestamp = videoStartTimestamp,
592-
videoEndTimestamp = videoEndTimestamp,
593-
initialFace = initialFace,
594-
targetFace = targetFace,
595-
colorDisplayed = colorDisplayed
596-
),
597-
faceMovementChallenge = null
598-
)
599-
}
600-
FaceLivenessChallengeType.FaceMovementChallenge -> {
601-
ClientChallenge(
602-
faceMovementAndLightChallenge = null,
603-
faceMovementChallenge = FaceMovementClientChallenge(
604-
challengeId = challengeId,
605-
videoStartTimestamp = videoStartTimestamp,
606-
videoEndTimestamp = videoEndTimestamp,
607-
initialFace = initialFace,
608-
targetFace = targetFace
609-
)
610-
)
611-
}
612-
}
613-
614526
companion object {
615527
private const val NORMAL_SOCKET_CLOSURE_STATUS_CODE = 1000
616-
// This is the same as the client-provided 'runtime error' status code
617-
private const val UNSUPPORTED_CHALLENGE_CLOSURE_STATUS_CODE = 4005
618528
private const val FOUR_MINUTES = 1000 * 60 * 4
619529
@VisibleForTesting val datePattern = "EEE, d MMM yyyy HH:mm:ss z"
620530
private val LOG = Amplify.Logging.logger(CategoryType.PREDICTIONS, "amplify:aws-predictions")

‎aws-predictions/src/main/java/com/amplifyframework/predictions/aws/models/liveness/ChallengeEvent.kt

Lines changed: 0 additions & 25 deletions
This file was deleted.

‎aws-predictions/src/main/java/com/amplifyframework/predictions/aws/models/liveness/ClientChallenge.kt

Lines changed: 1 addition & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -19,7 +19,5 @@ import kotlinx.serialization.Serializable
1919

2020
@Serializable
2121
internal data class ClientChallenge(
22-
@SerialName("FaceMovementAndLightChallenge") val faceMovementAndLightChallenge:
23-
FaceMovementAndLightClientChallenge? = null,
24-
@SerialName("FaceMovementChallenge") val faceMovementChallenge: FaceMovementClientChallenge? = null
22+
@SerialName("FaceMovementAndLightChallenge") val faceMovementAndLightChallenge: FaceMovementAndLightClientChallenge
2523
)

‎aws-predictions/src/main/java/com/amplifyframework/predictions/aws/models/liveness/FaceMovementClientChallenge.kt

Lines changed: 0 additions & 27 deletions
This file was deleted.

‎aws-predictions/src/main/java/com/amplifyframework/predictions/aws/models/liveness/FaceMovementServerChallenge.kt

Lines changed: 0 additions & 24 deletions
This file was deleted.

‎aws-predictions/src/main/java/com/amplifyframework/predictions/aws/models/liveness/LivenessResponseStream.kt

Lines changed: 1 addition & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -23,8 +23,7 @@ internal sealed class LivenessResponseStream {
2323
internal data class Event(
2424
@SerialName("ServerSessionInformationEvent") val serverSessionInformationEvent:
2525
ServerSessionInformationEvent? = null,
26-
@SerialName("DisconnectionEvent") val disconnectionEvent: DisconnectionEvent? = null,
27-
@SerialName("ChallengeEvent") val challengeEvent: ChallengeEvent? = null
26+
@SerialName("DisconnectionEvent") val disconnectionEvent: DisconnectionEvent? = null
2827
) : LivenessResponseStream()
2928

3029
@Serializable

‎aws-predictions/src/main/java/com/amplifyframework/predictions/aws/models/liveness/ServerChallenge.kt

Lines changed: 1 addition & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -19,7 +19,5 @@ import kotlinx.serialization.Serializable
1919

2020
@Serializable
2121
internal data class ServerChallenge(
22-
@SerialName("FaceMovementAndLightChallenge") val faceMovementAndLightChallenge:
23-
FaceMovementAndLightServerChallenge? = null,
24-
@SerialName("FaceMovementChallenge") val faceMovementChallenge: FaceMovementServerChallenge? = null
22+
@SerialName("FaceMovementAndLightChallenge") val faceMovementAndLightChallenge: FaceMovementAndLightServerChallenge
2523
)

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