185 lines
5.0 KiB
Swift
Executable File
185 lines
5.0 KiB
Swift
Executable File
// MIT License
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//
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// Copyright (c) 2017 Milen Dzhumerov
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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import Foundation
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public struct JSONHeaderMap {
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public struct Entry {
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public let prefix: String
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public let suffix: String
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public init(prefix: String, suffix: String) {
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self.prefix = prefix
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self.suffix = suffix
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}
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}
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public let entries: [String: Entry]
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public init(entries: [String: Entry]) {
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self.entries = entries
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}
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}
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// MARK: - Error
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enum JSONHeaderMapError: LocalizedError {
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case invalidTopLevelObject
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case invalidEntryObject
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case missingPrefix
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case missingSuffix
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}
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extension JSONHeaderMapError {
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public var errorDescription: String? {
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switch self {
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case .invalidTopLevelObject:
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return "The top level object in the JSON is invalid."
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case .invalidEntryObject:
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return "The entry object in the JSON is invalid."
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case .missingPrefix:
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return "An entry object does not have a value for the 'prefix' key."
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case .missingSuffix:
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return "An entry object does not have a value for the 'suffix' key."
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}
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}
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}
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// MARK: - Decode
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extension JSONHeaderMap.Entry {
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init(json: Any) throws {
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guard let dict = json as? [String: String] else {
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throw JSONHeaderMapError.invalidEntryObject
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}
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guard let prefix = dict[JSONHeaderMapEntryKey.prefix.rawValue] else {
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throw JSONHeaderMapError.missingPrefix
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}
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guard let suffix = dict[JSONHeaderMapEntryKey.suffix.rawValue] else {
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throw JSONHeaderMapError.missingSuffix
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}
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self.prefix = prefix
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self.suffix = suffix
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}
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}
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public extension JSONHeaderMap {
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public init(json: Any) throws {
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guard let dict = json as? [String: Any] else {
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throw JSONHeaderMapError.invalidTopLevelObject
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}
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self.entries = try dict.dictionaryMap { (key, jsonValue) in
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let entry = try Entry(json: jsonValue)
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return (key, entry)
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}
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}
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public init(jsonData: Data) throws {
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let jsonObj = try JSONSerialization.jsonObject(with: jsonData, options: [])
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try self.init(json: jsonObj)
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}
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}
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// MARK: - Encode
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extension JSONHeaderMap.Entry {
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var jsonValue: Any {
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return [
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JSONHeaderMapEntryKey.prefix.rawValue: prefix,
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JSONHeaderMapEntryKey.suffix.rawValue: suffix,
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]
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}
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}
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extension JSONHeaderMap {
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public var jsonValue: Any {
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return entries.dictionaryMap { (key, entry) in
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return (key, entry.jsonValue)
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}
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}
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public func makeJSONData(prettyPrinted: Bool = true) throws -> Data {
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let opts = prettyPrinted ? JSONSerialization.WritingOptions.prettyPrinted : []
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return try JSONSerialization.data(withJSONObject: jsonValue, options: opts)
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}
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}
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// MARK: - Keys
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enum JSONHeaderMapEntryKey: String {
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case prefix = "prefix"
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case suffix = "suffix"
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}
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// MARK: - Conversion
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public extension HeaderMap.Entry {
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public var jsonEntry: JSONHeaderMap.Entry {
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return JSONHeaderMap.Entry(
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prefix: prefix,
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suffix: suffix
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)
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}
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}
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extension JSONHeaderMap.Entry: Hashable {
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public var hashValue: Int {
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return prefix.hashValue ^ suffix.hashValue
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}
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public static func ==(lhs: JSONHeaderMap.Entry, rhs: JSONHeaderMap.Entry) -> Bool {
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return lhs.prefix == rhs.prefix && lhs.suffix == rhs.suffix
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}
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}
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public extension HeaderMap {
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public func makeJSONHeaderMap() -> JSONHeaderMap {
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let jsonEntries = makeEntryList().dictionaryMap { (entry) in
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return (entry.key, entry.jsonEntry)
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}
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return JSONHeaderMap(entries: jsonEntries)
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}
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public static func binaryDataFrom(jsonHeaderMap: JSONHeaderMap) throws -> Data {
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let hmapEntries = jsonHeaderMap.entries.map { (key, jsonEntry) in
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return HeaderMap.Entry(
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key: key,
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prefix: jsonEntry.prefix,
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suffix: jsonEntry.suffix)
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}
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return try HeaderMap.makeBinary(withEntries: hmapEntries)
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}
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}
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public extension JSONHeaderMap {
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public func makeHeaderMapEntries() -> [HeaderMap.Entry] {
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return entries.map { (key, value) in
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return HeaderMap.Entry(key: key, prefix: value.prefix, suffix: value.suffix)
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}
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}
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}
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