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Do not automatically retry 429 with a too long delay

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This commit is contained in:
Florian Renaud 2022-01-19 16:48:20 +01:00
parent 491044b0c5
commit fd61f07373
2 changed files with 17 additions and 9 deletions
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5
matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/failure/Extensions.kt
View file

@ -35,6 +35,11 @@ fun Throwable.isTokenError() =
error.code == MatrixError.M_MISSING_TOKEN ||
error.code == MatrixError.ORG_MATRIX_EXPIRED_ACCOUNT)
fun Throwable.isLimitExceededError() =
this is Failure.ServerError &&
httpCode == 429 &&
error.code == MatrixError.M_LIMIT_EXCEEDED
fun Throwable.shouldBeRetried(): Boolean {
return this is Failure.NetworkConnection ||
this is IOException ||

21
matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/network/Request.kt
View file

@ -19,8 +19,8 @@ package org.matrix.android.sdk.internal.network
import kotlinx.coroutines.CancellationException
import kotlinx.coroutines.delay
import org.matrix.android.sdk.api.failure.Failure
import org.matrix.android.sdk.api.failure.MatrixError
import org.matrix.android.sdk.api.failure.getRetryDelay
import org.matrix.android.sdk.api.failure.isLimitExceededError
import org.matrix.android.sdk.api.failure.shouldBeRetried
import org.matrix.android.sdk.internal.network.ssl.CertUtil
import retrofit2.HttpException
@ -74,23 +74,26 @@ internal suspend inline fun <DATA> executeRequest(globalErrorReceiver: GlobalErr
currentRetryCount++
if (exception is Failure.ServerError &&
exception.httpCode == 429 &&
exception.error.code == MatrixError.M_LIMIT_EXCEEDED &&
currentRetryCount < maxRetriesCount) {
if (exception.isLimitExceededError() && currentRetryCount < maxRetriesCount) {
// 429, we can retry
delay(exception.getRetryDelay(1_000))
val retryDelay = exception.getRetryDelay(1_000)
if (retryDelay <= maxDelayBeforeRetry) {
delay(retryDelay)
} else {
// delay is too high to be retried, propagate the exception
throw exception
}
} else if (canRetry && currentRetryCount < maxRetriesCount && exception.shouldBeRetried()) {
delay(currentDelay)
currentDelay = currentDelay.times(2L).coerceAtMost(maxDelayBeforeRetry)
// Try again (loop)
} else {
throw when (exception) {
is IOException -> Failure.NetworkConnection(exception)
is IOException -> Failure.NetworkConnection(exception)
is Failure.ServerError,
is Failure.OtherServerError,
is CancellationException -> exception
else -> Failure.Unknown(exception)
is CancellationException -> exception
else -> Failure.Unknown(exception)
}
}
}