mirror of
https://github.com/swift-server/async-http-client.git
synced 2026-05-03 07:32:29 +00:00
tomer doron
018e139eef
motivation: the Swift Server Workgroup is not a legal entity and cannot hold copyrights. with this change, code authors continue and retain their copyrights under the apache license and previous copyrights note, but Apple steps up instead of the workgroup which has no legal status changes: * update header files to say "Apple Inc. and the AsyncHTTPClient project authors" instead of "Swift Server Workgroup and the AsyncHTTPClient project authors" * update validation scripts to check for the correct header * add CONTRIBUTING.md file to explain how to make contributions and include a legal notice about licensing the contribution to Apple and the project * regenerate CONTRIBUTORS.md to reflect most recent contributions
63 lines
2.2 KiB
Swift
63 lines
2.2 KiB
Swift
//===----------------------------------------------------------------------===//
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//
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// This source file is part of the AsyncHTTPClient open source project
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//
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// Copyright (c) 2018-2019 Apple Inc. and the AsyncHTTPClient project authors
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// Licensed under Apache License v2.0
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//
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// See LICENSE.txt for license information
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// See CONTRIBUTORS.txt for the list of AsyncHTTPClient project authors
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//
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// SPDX-License-Identifier: Apache-2.0
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//
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//===----------------------------------------------------------------------===//
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import NIO
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import NIOHTTP1
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extension HTTPHeaders {
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mutating func validate(body: HTTPClient.Body?) throws {
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// validate transfer encoding and content length (https://tools.ietf.org/html/rfc7230#section-3.3.1)
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var transferEncoding: String?
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var contentLength: Int?
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let encodings = self[canonicalForm: "Transfer-Encoding"].map { $0.lowercased() }
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guard !encodings.contains("identity") else {
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throw HTTPClientError.identityCodingIncorrectlyPresent
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}
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self.remove(name: "Transfer-Encoding")
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self.remove(name: "Content-Length")
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if let body = body {
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guard (encodings.filter { $0 == "chunked" }.count <= 1) else {
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throw HTTPClientError.chunkedSpecifiedMultipleTimes
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}
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if encodings.isEmpty {
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guard let length = body.length else {
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throw HTTPClientError.contentLengthMissing
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}
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contentLength = length
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} else {
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transferEncoding = encodings.joined(separator: ", ")
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if !encodings.contains("chunked") {
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guard let length = body.length else {
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throw HTTPClientError.contentLengthMissing
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}
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contentLength = length
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}
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}
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} else {
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contentLength = 0
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}
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// add headers if required
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if let enc = transferEncoding {
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self.add(name: "Transfer-Encoding", value: enc)
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}
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if let length = contentLength {
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self.add(name: "Content-Length", value: String(length))
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}
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}
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}
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