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api/src/main/kotlin/dev/schlaubi/mikbot/plugin/api/settings/SettingsApi.kt
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90 changes: 90 additions & 0 deletions
90
...netes/src/main/kotlin/dev/schlaubi/mikbot/core/health/ratelimit/DistributedRateLimiter.kt
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package dev.schlaubi.mikbot.core.health.ratelimit | ||
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import dev.kord.rest.ratelimit.RequestRateLimiter | ||
import dev.kord.rest.ratelimit.RequestResponse | ||
import dev.kord.rest.ratelimit.RequestToken | ||
import dev.kord.rest.request.Request | ||
import dev.kord.rest.request.identifier | ||
import io.github.bucket4j.BucketConfiguration | ||
import io.github.bucket4j.TokensInheritanceStrategy | ||
import io.github.bucket4j.distributed.proxy.ProxyManager | ||
import io.github.oshai.kotlinlogging.KotlinLogging | ||
import kotlinx.coroutines.future.await | ||
import kotlinx.datetime.Clock | ||
import kotlinx.datetime.toJavaInstant | ||
import java.util.concurrent.CompletableFuture | ||
import java.util.concurrent.Executors | ||
import kotlin.time.Duration | ||
import kotlin.time.Duration.Companion.minutes | ||
import kotlin.time.toJavaDuration | ||
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private val LOG = KotlinLogging.logger { } | ||
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private val autoBanBucket = BucketConfiguration.builder() | ||
.addLimit { it.capacity(25000).refillIntervally(25000, 10.minutes.toJavaDuration()) } | ||
.build() | ||
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private const val globalBucket = "global" | ||
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class DistributedRateLimiter(proxyManager: ProxyManager<String>) : RequestRateLimiter { | ||
private val proxyManager = proxyManager.asAsync() | ||
private val executor = Executors.newScheduledThreadPool(10) | ||
private val start = Clock.System.now() | ||
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private suspend fun await(name: String, configuration: BucketConfiguration, expiry: Duration = 1.minutes) { | ||
proxyManager.getProxy(name) { CompletableFuture.completedFuture(configuration) } | ||
.asScheduler() | ||
.tryConsume(1, expiry.toJavaDuration(), executor) | ||
.await() | ||
} | ||
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private suspend fun awaitByName(name: String) { | ||
val requestBucket = proxyManager.getProxyConfiguration(name).await() | ||
if (requestBucket.isPresent) { | ||
await(name, requestBucket.get()) | ||
} | ||
} | ||
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override suspend fun await(request: Request<*, *>): RequestToken { | ||
val requestIdentifier = request.identifier.toString() | ||
awaitByName(globalBucket) | ||
awaitByName(requestIdentifier) | ||
await("auto_ban", autoBanBucket) | ||
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return object : RequestToken { | ||
private val deferred = CompletableFuture<Unit>() | ||
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override val completed: Boolean | ||
get() = deferred.isDone | ||
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override suspend fun complete(response: RequestResponse) { | ||
if (response is RequestResponse.GlobalRateLimit) { | ||
val config = response.toBucketConfiguration() | ||
val proxy = proxyManager.getProxy(globalBucket) { CompletableFuture.completedFuture(config) } | ||
proxy.replaceConfiguration(config, TokensInheritanceStrategy.AS_IS) | ||
} else { | ||
val key = response.bucketKey!! | ||
val config = response.toBucketConfiguration() | ||
val proxy = proxyManager.getProxy(key.value) { CompletableFuture.completedFuture(config) } | ||
proxy.replaceConfiguration(config, TokensInheritanceStrategy.AS_IS) | ||
} | ||
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deferred.complete(Unit) | ||
} | ||
} | ||
} | ||
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private fun RequestResponse.toBucketConfiguration() = BucketConfiguration.builder() | ||
.addLimit { | ||
val limit = rateLimit!! | ||
val reset = reset!! | ||
it | ||
.capacity(limit.remaining.value) | ||
.refillIntervallyAligned( | ||
limit.total.value, | ||
(Clock.System.now() - reset.value).toJavaDuration(), | ||
start.toJavaInstant() | ||
) | ||
} | ||
.build() | ||
} |
23 changes: 23 additions & 0 deletions
23
core/kubernetes/src/main/kotlin/dev/schlaubi/mikbot/core/health/ratelimit/Setup.kt
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package dev.schlaubi.mikbot.core.health.ratelimit | ||
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import dev.kord.core.builder.kord.KordBuilder | ||
import dev.kord.rest.request.KtorRequestHandler | ||
import dev.schlaubi.mikbot.core.health.Config | ||
import io.github.bucket4j.redis.lettuce.Bucket4jLettuce | ||
import io.lettuce.core.RedisClient | ||
import io.lettuce.core.codec.ByteArrayCodec | ||
import io.lettuce.core.codec.RedisCodec | ||
import io.lettuce.core.codec.StringCodec | ||
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fun KordBuilder.setupDistributedRateLimiter() { | ||
val connection = RedisClient.create(Config.REDIS_URL) | ||
.connect(RedisCodec.of(StringCodec.UTF8, ByteArrayCodec.INSTANCE)) | ||
val proxyManager = Bucket4jLettuce | ||
.casBasedBuilder(connection).build() | ||
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val rateLimiter = DistributedRateLimiter(proxyManager) | ||
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requestHandler { | ||
KtorRequestHandler(it.token, rateLimiter) | ||
} | ||
} |
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@@ -1,3 +1 @@ | ||
:core:gdpr | ||
:music:player | ||
:music:commands | ||
:core:kubernetes |