0001    /*
0002     The MIT License (MIT)
0003    
0004     Copyright (c) 2015 Shun Takebayashi
0005    
0006     Permission is hereby granted, free of charge, to any person obtaining a copy
0007     of this software and associated documentation files (the "Software"), to deal
0008     in the Software without restriction, including without limitation the rights
0009     to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
0010     copies of the Software, and to permit persons to whom the Software is
0011     furnished to do so, subject to the following conditions:
0012    
0013     The above copyright notice and this permission notice shall be included in all
0014     copies or substantial portions of the Software.
0015    
0016     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
0017     IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
0018     FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
0019     AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
0020     LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
0021     OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
0022     SOFTWARE.
0023    */
0024    
0025    import Nest
0026    
0027    enum HTTPRequestParserError
HTTPRequestParser.swift:88
            throw HTTPRequestParserError.InvalidRequest(details: "Missing HTTP request method")
HTTPRequestParser.swift:92
            throw HTTPRequestParserError.InvalidRequest(details: "Missing HTTP request path")
HTTPRequestParser.swift:96
            throw HTTPRequestParserError.InvalidRequest(details: "Missing HTTP request version")
: ErrorType {
0028        case InvalidRequest
HTTPRequestParser.swift:88
            throw HTTPRequestParserError.InvalidRequest(details: "Missing HTTP request method")
HTTPRequestParser.swift:92
            throw HTTPRequestParserError.InvalidRequest(details: "Missing HTTP request path")
HTTPRequestParser.swift:96
            throw HTTPRequestParserError.InvalidRequest(details: "Missing HTTP request version")
(details: String)
0029    }
0030    
0031    protocol HTTPRequestParser
HTTPRequestParser.swift:37
class DefaultHTTPRequestParser: HTTPRequestParser {
 {
0032    
0033        func parse<R: Reader where R.Entry == Int8>(reader: R) throws -> HTTPRequest
0034    
0035    }
0036    
0037    class DefaultHTTPRequestParser
HTTPRequestParser.swift:61
            let str = (String.fromCString(bytes) ?? "").trimRight(DefaultHTTPRequestParser.CRLF)
HTTPServer.swift:76
                try handler(DefaultHTTPRequestParser().parse(reader), writer)
: HTTPRequestParser {
0038    
0039        static let CRLF
HTTPRequestParser.swift:61
            let str = (String.fromCString(bytes) ?? "").trimRight(DefaultHTTPRequestParser.CRLF)
 = Character("\r\n")
0040    
0041        enum Mode
HTTPRequestParser.swift:50
        var mode = Mode.First
 {
0042            case First
HTTPRequestParser.swift:50
        var mode = Mode.First
HTTPRequestParser.swift:63
            case .First:

0043            case Header
HTTPRequestParser.swift:68
                mode = .Header
HTTPRequestParser.swift:69
            case .Header:

0044            case Empty
HTTPRequestParser.swift:71
                    mode = .Empty
HTTPRequestParser.swift:79
            case .Empty:

0045            case Body
HTTPRequestParser.swift:80
                mode = .Body
HTTPRequestParser.swift:82
            case .Body:

0046        }
0047    
0048        func parse
HTTPServer.swift:76
                try handler(DefaultHTTPRequestParser().parse(reader), writer)
<R: Reader where R.Entry == Int8>(reader: R) throws -> HTTPRequest {
0049            let bufferedReader = BufferedReader(reader: reader)
0050            var mode = Mode.First
0051    
0052            var method: String?
0053            var path: String?
0054            var version: String?
0055            var headers = [Header]()
0056            var body = [Int8]()
0057    
0058            while let line = try bufferedReader.read() {
0059                var bytes = line
0060                bytes.append(0)
0061                let str = (String.fromCString(bytes) ?? "").trimRight(DefaultHTTPRequestParser.CRLF)
0062                switch mode {
0063                case .First:
0064                    let fields = str.characters.split(" ", maxSplit: 3, allowEmptySlices: true)
0065                    method = String(fields[0])
0066                    path = String(fields[1])
0067                    version = String(fields[2])
0068                    mode = .Header
0069                case .Header:
0070                    if str.isEmpty {
0071                        mode = .Empty
0072                    }
0073                    else {
0074                        let field = str.characters.split(":", maxSplit: 2, allowEmptySlices: true)
0075                        let name = String(field[0])
0076                        let value = String(field[1]).trimLeft(" ", maxCount: 1)
0077                        headers.append(Header(name, value))
0078                    }
0079                case .Empty:
0080                    mode = .Body
0081                    fallthrough
0082                case .Body:
0083                    body.appendContentsOf(line)
0084                }
0085            }
0086    
0087            guard let parsedMethod = method else {
0088                throw HTTPRequestParserError.InvalidRequest(details: "Missing HTTP request method")
0089            }
0090    
0091            guard let parsedPath = path else {
0092                throw HTTPRequestParserError.InvalidRequest(details: "Missing HTTP request path")
0093            }
0094    
0095            guard let parsedVersion = version else {
0096                throw HTTPRequestParserError.InvalidRequest(details: "Missing HTTP request version")
0097            }
0098    
0099            return HTTPRequest(method: parsedMethod, path: parsedPath, version: parsedVersion, headers: headers, body: body)
0100        }
0101    
0102    }
0103