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* Move response processing to a separate class * Don't set response body to true for no body
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134 changes: 134 additions & 0 deletions
134
library/src/main/java/com/chuckerteam/chucker/internal/support/ResponseProcessor.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,134 @@ | ||
| package com.chuckerteam.chucker.internal.support | ||
|
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| import com.chuckerteam.chucker.api.ChuckerCollector | ||
| import com.chuckerteam.chucker.internal.data.entity.HttpTransaction | ||
| import okhttp3.Response | ||
| import okhttp3.ResponseBody.Companion.asResponseBody | ||
| import okio.Buffer | ||
| import okio.Source | ||
| import okio.buffer | ||
| import okio.source | ||
| import java.io.File | ||
|
|
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| internal class ResponseProcessor( | ||
| private val collector: ChuckerCollector, | ||
| private val cacheDirectoryProvider: CacheDirectoryProvider, | ||
| private val maxContentLength: Long, | ||
| private val headersToRedact: Set<String>, | ||
| private val alwaysReadResponseBody: Boolean, | ||
| ) { | ||
| fun process(response: Response, transaction: HttpTransaction): Response { | ||
| processResponseMetadata(response, transaction) | ||
| return multiCastResponse(response, transaction) | ||
| } | ||
|
|
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| private fun processResponseMetadata(response: Response, transaction: HttpTransaction) { | ||
| transaction.apply { | ||
| // includes headers added later in the chain | ||
| setRequestHeaders(response.request.headers.redact(headersToRedact)) | ||
| setResponseHeaders(response.headers.redact(headersToRedact)) | ||
|
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| requestDate = response.sentRequestAtMillis | ||
| responseDate = response.receivedResponseAtMillis | ||
| protocol = response.protocol.toString() | ||
| responseCode = response.code | ||
| responseMessage = response.message | ||
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| response.handshake?.let { handshake -> | ||
| responseTlsVersion = handshake.tlsVersion.javaName | ||
| responseCipherSuite = handshake.cipherSuite.javaName | ||
| } | ||
|
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| responseContentType = response.contentType | ||
|
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| tookMs = (response.receivedResponseAtMillis - response.sentRequestAtMillis) | ||
| } | ||
| } | ||
|
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| private fun multiCastResponse(response: Response, transaction: HttpTransaction): Response { | ||
| val responseBody = response.body | ||
| if (!response.hasBody() || responseBody == null) { | ||
| collector.onResponseReceived(transaction) | ||
| return response | ||
| } | ||
|
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| val contentType = responseBody.contentType() | ||
| val contentLength = responseBody.contentLength() | ||
|
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| val sideStream = ReportingSink( | ||
| createTempTransactionFile(), | ||
| ResponseReportingSinkCallback(response, transaction), | ||
| maxContentLength | ||
| ) | ||
| var upstream: Source = TeeSource(responseBody.source(), sideStream) | ||
| if (alwaysReadResponseBody) upstream = DepletingSource(upstream) | ||
|
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| return response.newBuilder() | ||
| .body(upstream.buffer().asResponseBody(contentType, contentLength)) | ||
| .build() | ||
| } | ||
|
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| private fun createTempTransactionFile(): File? { | ||
| val cache = cacheDirectoryProvider.provide() | ||
| return if (cache == null) { | ||
| Logger.warn("Failed to obtain a valid cache directory for transaction files") | ||
| null | ||
| } else { | ||
| FileFactory.create(cache) | ||
| } | ||
| } | ||
|
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| private fun processResponsePayload(response: Response, payload: Buffer, transaction: HttpTransaction) { | ||
| val responseBody = response.body ?: return | ||
|
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| val contentType = responseBody.contentType() | ||
| val charset = contentType?.charset() ?: Charsets.UTF_8 | ||
|
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| if (payload.isProbablyPlainText) { | ||
| transaction.isResponseBodyPlainText = true | ||
| if (payload.size != 0L) { | ||
| transaction.responseBody = payload.readString(charset) | ||
| } | ||
| } else { | ||
| val isImageContentType = contentType?.toString()?.contains(CONTENT_TYPE_IMAGE, ignoreCase = true) == true | ||
|
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| if (isImageContentType && (payload.size < MAX_BLOB_SIZE)) { | ||
| transaction.responseImageData = payload.readByteArray() | ||
| } | ||
| } | ||
| } | ||
|
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| private inner class ResponseReportingSinkCallback( | ||
| private val response: Response, | ||
| private val transaction: HttpTransaction, | ||
| ) : ReportingSink.Callback { | ||
|
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| override fun onClosed(file: File?, sourceByteCount: Long) { | ||
| file?.readResponsePayload()?.let { payload -> | ||
| processResponsePayload(response, payload, transaction) | ||
| } | ||
| transaction.responsePayloadSize = sourceByteCount | ||
| collector.onResponseReceived(transaction) | ||
| file?.delete() | ||
| } | ||
|
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| override fun onFailure(file: File?, exception: java.io.IOException) { | ||
| Logger.error("Failed to read response payload", exception) | ||
| } | ||
|
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| private fun File.readResponsePayload() = try { | ||
| source().uncompress(response.headers).use { source -> | ||
| Buffer().apply { writeAll(source) } | ||
| } | ||
| } catch (e: java.io.IOException) { | ||
| Logger.error("Response payload couldn't be processed", e) | ||
| null | ||
| } | ||
| } | ||
|
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| private companion object { | ||
| const val MAX_BLOB_SIZE = 1_000_000L | ||
|
|
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| const val CONTENT_TYPE_IMAGE = "image" | ||
| } | ||
| } |
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