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//===----------------------------------------------------------------------===//
//
// This source file is part of the SwiftNIO open source project
//
// Copyright (c) 2017-2018 Apple Inc. and the SwiftNIO project authors
// Licensed under Apache License v2.0
//
// See LICENSE.txt for license information
// See CONTRIBUTORS.txt for the list of SwiftNIO project authors
//
// SPDX-License-Identifier: Apache-2.0
//
//===----------------------------------------------------------------------===//
import XCTest
@testable import NIO
@testable import NIOHTTP1
private final class TestChannelInboundHandler: ChannelInboundHandler {
public typealias InboundIn = HTTPServerRequestPart
public typealias InboundOut = HTTPServerRequestPart
private let body: (HTTPServerRequestPart) -> HTTPServerRequestPart
init(_ body: @escaping (HTTPServerRequestPart) -> HTTPServerRequestPart) {
self.body = body
}
public func channelRead(context: ChannelHandlerContext, data: NIOAny) {
context.fireChannelRead(self.wrapInboundOut(self.body(self.unwrapInboundIn(data))))
}
}
class HTTPTest: XCTestCase {
func checkHTTPRequest(_ expected: HTTPRequestHead, body: String? = nil, trailers: HTTPHeaders? = nil) throws {
try checkHTTPRequests([expected], body: body, trailers: trailers)
}
func checkHTTPRequests(_ expecteds: [HTTPRequestHead], body: String? = nil, trailers: HTTPHeaders? = nil) throws {
func httpRequestStrForRequest(_ req: HTTPRequestHead) -> String {
var s = "\(req.method) \(req.uri) HTTP/\(req.version.major).\(req.version.minor)\r\n"
for (k, v) in req.headers {
s += "\(k): \(v)\r\n"
}
if trailers != nil {
s += "Transfer-Encoding: chunked\r\n"
s += "\r\n"
if let body = body {
s += String(body.utf8.count, radix: 16)
s += "\r\n"
s += body
s += "\r\n"
}
s += "0\r\n"
if let trailers = trailers {
for (k, v) in trailers {
s += "\(k): \(v)\r\n"
}
}
s += "\r\n"
} else if let body = body {
let bodyData = body.data(using: .utf8)!
s += "Content-Length: \(bodyData.count)\r\n"
s += "\r\n"
s += body
} else {
s += "\r\n"
}
return s
}
func sendAndCheckRequests(_ expecteds: [HTTPRequestHead], body: String?, trailers: HTTPHeaders?, sendStrategy: (String, EmbeddedChannel) -> EventLoopFuture<Void>) throws -> String? {
var step = 0
var index = 0
let channel = EmbeddedChannel()
defer {
XCTAssertNoThrow(try channel.finish())
}
try channel.pipeline.addHandler(ByteToMessageHandler(HTTPRequestDecoder())).wait()
var bodyData: [UInt8]? = nil
var allBodyDatas: [[UInt8]] = []
try channel.pipeline.addHandler(TestChannelInboundHandler { reqPart in
switch reqPart {
case .head(var req):
XCTAssertEqual((index * 2), step)
req.headers.remove(name: "Content-Length")
req.headers.remove(name: "Transfer-Encoding")
XCTAssertEqual(expecteds[index], req)
step += 1
case .body(var buffer):
if bodyData == nil {
bodyData = buffer.readBytes(length: buffer.readableBytes)!
} else {
bodyData!.append(contentsOf: buffer.readBytes(length: buffer.readableBytes)!)
}
case .end(let receivedTrailers):
XCTAssertEqual(trailers, receivedTrailers)
step += 1
XCTAssertEqual(((index + 1) * 2), step)
}
return reqPart
}).wait()
var writeFutures: [EventLoopFuture<Void>] = []
for expected in expecteds {
writeFutures.append(sendStrategy(httpRequestStrForRequest(expected), channel))
index += 1
if let bodyData = bodyData {
allBodyDatas.append(bodyData)
}
bodyData = nil
}
channel.pipeline.flush()
XCTAssertNoThrow(try EventLoopFuture.andAllSucceed(writeFutures, on: channel.eventLoop).wait())
XCTAssertEqual(2 * expecteds.count, step)
if body != nil {
XCTAssertGreaterThan(allBodyDatas.count, 0)
let firstBodyData = allBodyDatas[0]
for bodyData in allBodyDatas {
XCTAssertEqual(firstBodyData, bodyData)
}
return String(decoding: firstBodyData, as: Unicode.UTF8.self)
} else {
XCTAssertEqual(0, allBodyDatas.count, "left with \(allBodyDatas)")
return nil
}
}
/* send all bytes in one go */
let bd1 = try sendAndCheckRequests(expecteds, body: body, trailers: trailers, sendStrategy: { (reqString, chan) in
var buf = chan.allocator.buffer(capacity: 1024)
buf.writeString(reqString)
return chan.eventLoop.makeSucceededFuture(()).flatMapThrowing {
try chan.writeInbound(buf)
}
})
/* send the bytes one by one */
let bd2 = try sendAndCheckRequests(expecteds, body: body, trailers: trailers, sendStrategy: { (reqString, chan) in
var writeFutures: [EventLoopFuture<Void>] = []
for c in reqString {
var buf = chan.allocator.buffer(capacity: 1024)
buf.writeString("\(c)")
writeFutures.append(chan.eventLoop.makeSucceededFuture(()).flatMapThrowing {
try chan.writeInbound(buf)
})
}
return EventLoopFuture.andAllSucceed(writeFutures, on: chan.eventLoop)
})
XCTAssertEqual(bd1, bd2)
XCTAssertEqual(body, bd1)
}
func testHTTPSimpleNoHeaders() throws {
try checkHTTPRequest(HTTPRequestHead(version: .http1_1, method: .GET, uri: "/"))
}
func testHTTPSimple1Header() throws {
var req = HTTPRequestHead(version: .http1_1, method: .GET, uri: "/hello/world")
req.headers.add(name: "foo", value: "bar")
try checkHTTPRequest(req)
}
func testHTTPSimpleSomeHeader() throws {
var req = HTTPRequestHead(version: .http1_1, method: .GET, uri: "/foo/bar/buz?qux=quux")
req.headers.add(name: "foo", value: "bar")
req.headers.add(name: "qux", value: "quuux")
try checkHTTPRequest(req)
}
func testHTTPPipelining() throws {
var req1 = HTTPRequestHead(version: .http1_1, method: .GET, uri: "/foo/bar/buz?qux=quux")
req1.headers.add(name: "foo", value: "bar")
req1.headers.add(name: "qux", value: "quuux")
var req2 = HTTPRequestHead(version: .http1_1, method: .GET, uri: "/")
req2.headers.add(name: "a", value: "b")
req2.headers.add(name: "C", value: "D")
try checkHTTPRequests([req1, req2])
try checkHTTPRequests(Array(repeating: req1, count: 10))
}
func testHTTPBody() throws {
try checkHTTPRequest(HTTPRequestHead(version: .http1_1, method: .GET, uri: "/"),
body: "hello world")
}
func test1ByteHTTPBody() throws {
try checkHTTPRequest(HTTPRequestHead(version: .http1_1, method: .GET, uri: "/"),
body: "1")
}
func testHTTPPipeliningWithBody() throws {
try checkHTTPRequests(Array(repeating: HTTPRequestHead(version: .http1_1,
method: .GET, uri: "/"),
count: 20),
body: "1")
}
func testChunkedBody() throws {
var trailers = HTTPHeaders()
trailers.add(name: "X-Key", value: "X-Value")
trailers.add(name: "Something", value: "Else")
try checkHTTPRequest(HTTPRequestHead(version: .http1_1, method: .POST, uri: "/"), body: "100", trailers: trailers)
}
func testHTTPRequestHeadCoWWorks() throws {
let headers = HTTPHeaders([("foo", "bar")])
var httpReq = HTTPRequestHead(version: .http1_1, method: .GET, uri: "/uri")
httpReq.headers = headers
var modVersion = httpReq
modVersion.version = .http2
XCTAssertEqual(.http1_1, httpReq.version)
XCTAssertEqual(.http2, modVersion.version)
var modMethod = httpReq
modMethod.method = .POST
XCTAssertEqual(.GET, httpReq.method)
XCTAssertEqual(.POST, modMethod.method)
var modURI = httpReq
modURI.uri = "/changed"
XCTAssertEqual("/uri", httpReq.uri)
XCTAssertEqual("/changed", modURI.uri)
var modHeaders = httpReq
modHeaders.headers.add(name: "qux", value: "quux")
XCTAssertEqual(httpReq.headers, headers)
XCTAssertNotEqual(httpReq, modHeaders)
modHeaders.headers.remove(name: "foo")
XCTAssertEqual(httpReq.headers, headers)
XCTAssertNotEqual(httpReq, modHeaders)
modHeaders.headers.remove(name: "qux")
modHeaders.headers.add(name: "foo", value: "bar")
XCTAssertEqual(httpReq, modHeaders)
}
func testHTTPResponseHeadCoWWorks() throws {
let headers = HTTPHeaders([("foo", "bar")])
let httpRes = HTTPResponseHead(version: .http1_1, status: .ok, headers: headers)
var modVersion = httpRes
modVersion.version = .http2
XCTAssertEqual(.http1_1, httpRes.version)
XCTAssertEqual(.http2, modVersion.version)
var modStatus = httpRes
modStatus.status = .notFound
XCTAssertEqual(.ok, httpRes.status)
XCTAssertEqual(.notFound, modStatus.status)
var modHeaders = httpRes
modHeaders.headers.add(name: "qux", value: "quux")
XCTAssertEqual(httpRes.headers, headers)
XCTAssertNotEqual(httpRes, modHeaders)
modHeaders.headers.remove(name: "foo")
XCTAssertEqual(httpRes.headers, headers)
XCTAssertNotEqual(httpRes, modHeaders)
modHeaders.headers.remove(name: "qux")
modHeaders.headers.add(name: "foo", value: "bar")
XCTAssertEqual(httpRes, modHeaders)
}
}
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