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PR feedbacks: move MultiPart utilities into dedicated util file
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...junit-tests/src/test/java/com/yelp/codegen/generatecodesamples/tools/MultiPartTestUtil.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,92 @@ | ||
| package com.yelp.codegen.generatecodesamples.tools | ||
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| import okhttp3.mockwebserver.RecordedRequest | ||
| import org.junit.Assert.fail | ||
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| data class FileApiStats( | ||
| val boundary: String, | ||
| val parts: List<MultiPartInfo> | ||
| ) | ||
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| data class MultiPartInfo( | ||
| val fileContent: String? = null, | ||
| val contentDisposition: String? = null, | ||
| val contentLength: String? = null, | ||
| val contentType: String? = null | ||
| ) | ||
|
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| private fun processPart(part: String): MultiPartInfo { | ||
| // part would look like "\r\nHeader-Name: Header-Value\r\n...\r\n\r\nbody\r\n" | ||
| // Here we're removing the first and last part as we know that are empty | ||
| val partLinesIterator = part.split("\r\n").drop(1).dropLast(1).iterator() | ||
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| val headers = mutableMapOf<String, String>() | ||
| for (headerLine in partLinesIterator) { | ||
| if (headerLine.isEmpty()) { | ||
| break | ||
| } else { | ||
| val (name, value) = headerLine.split(": ", limit = 2) | ||
| // Note: in theory we can have the same header name multiples times | ||
| // We're not dealing with it as this is a test utility ;) | ||
| headers[name] = value | ||
| } | ||
| } | ||
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| val content = partLinesIterator.asSequence().joinToString("\r\n") | ||
| return MultiPartInfo( | ||
| fileContent = content, | ||
| contentDisposition = headers["Content-Disposition"], | ||
| contentType = headers["Content-Type"], | ||
| contentLength = headers["Content-Length"] | ||
| ) | ||
| } | ||
|
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| /** | ||
| * Extract statistics from the body of the recorded request (assuming that it is multipart body) | ||
| */ | ||
| fun RecordedRequest.decodeMultiPartBody(): FileApiStats { | ||
| /** | ||
| * requestBody has to be compliant to the HTTP Specifications for MultiPart (RFC 2387) | ||
| * | ||
| * This means that the body will look like | ||
| * --<BOUNDARY>\r\n | ||
| * <Content1 Header Name>: <Content1 Header Value>\r\n | ||
| * [<Content1 Header Name>: <Content1 Header Value>\r\n] | ||
| * \r\n | ||
| * <Content1>\r\n | ||
| * --<BOUNDARY>\r\n | ||
| * <Content# Header Name>: <Content# Header Value>\r\n | ||
| * [<Content# Header Name>: <Content# Header Value>\r\n] | ||
| * \r\n | ||
| * <Content#>\r\n | ||
| * --<BOUNDARY>--\r\n | ||
| * \r\n | ||
| */ | ||
| val requestBody = this.body.readUtf8() | ||
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| val boundaryLine = requestBody.split("\r\n").first() | ||
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| val bodyParts = mutableListOf<String>() | ||
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| if (!boundaryLine.startsWith("--")) { | ||
| fail("Boundary should start with '--'") | ||
| } | ||
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| val boundary = boundaryLine.substring(startIndex = 2) | ||
| bodyParts.addAll(requestBody.split(boundaryLine)) | ||
| if (!bodyParts.last().startsWith("--")) { | ||
| fail("Start and End Boundaries are different") | ||
| } else if (bodyParts.last().substring(startIndex = 2) != "\r\n") { | ||
| fail("The last line of the body has to be empty") | ||
| } | ||
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| val parts = bodyParts | ||
| .drop(1) | ||
| .dropLast(1) | ||
| .map { processPart(it) } | ||
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| return FileApiStats( | ||
| boundary = boundary, | ||
| parts = parts | ||
| ) | ||
| } |