Twyco
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97 lines
3.9 KiB
Swift
97 lines
3.9 KiB
Swift
import Foundation
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struct WorkspaceServer: Codable, Equatable {
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let url: URL
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let profile: UUID
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static func normalize(_ input: String) -> URL? {
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let input = input.trimmingCharacters(in: .whitespacesAndNewlines)
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guard input.lowercased().hasPrefix("https://"),
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!input.contains("\\"),
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input.rangeOfCharacter(from: .controlCharacters) == nil,
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var components = URLComponents(string: input),
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components.scheme?.lowercased() == "https",
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let host = components.host, !host.isEmpty,
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components.user == nil, components.password == nil,
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components.query == nil, components.fragment == nil,
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components.port.map({ (1...65535).contains($0) }) ?? true else { return nil }
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components.scheme = "https"
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components.host = host.lowercased()
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if components.port == 443 { components.port = nil }
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if !components.path.hasSuffix("/") { components.path += "/" }
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return components.url
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}
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var dashboardURL: URL { url.appendingPathComponent("dashboard") }
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func allows(_ destination: URL) -> Bool {
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destination.scheme?.lowercased() == "https"
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&& destination.host?.lowercased() == url.host?.lowercased()
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&& (destination.port ?? 443) == (url.port ?? 443)
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&& destination.user == nil && destination.password == nil
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}
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static func allowsExternal(_ destination: URL) -> Bool {
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["https", "http"].contains(destination.scheme?.lowercased() ?? "")
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&& destination.host?.isEmpty == false
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&& (destination.port.map({ (1...65535).contains($0) }) ?? true)
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&& destination.user == nil && destination.password == nil
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}
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static func selecting(_ url: URL, current: WorkspaceServer?) -> WorkspaceServer {
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current?.url == url ? current! : WorkspaceServer(url: url, profile: UUID())
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}
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}
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struct WorkspaceConnection {
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private(set) var revision = 0
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private(set) var ready = false
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private(set) var connecting = false
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mutating func begin() -> Int {
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revision += 1
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connecting = true
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return revision
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}
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mutating func finish() {
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connecting = false
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ready = true
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}
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mutating func fail(_ expectedRevision: Int) -> Bool {
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guard expectedRevision == revision, connecting else { return false }
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connecting = false
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return true
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}
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}
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enum NativeSettingsError: Error { case invalidRequest, incompatibleVersion, invalidServer }
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struct NativeSettingsRequest {
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let id: Int
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let action: String
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let payload: [String: Any]
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static func parse(_ body: String) throws -> NativeSettingsRequest {
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guard body.utf8.count <= 8192,
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let value = try JSONSerialization.jsonObject(with: Data(body.utf8)) as? [String: Any],
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Set(value.keys) == Set(["version", "id", "action", "payload"]),
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let version = value["version"] as? NSNumber, CFGetTypeID(version) != CFBooleanGetTypeID(),
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version == 1 else { throw NativeSettingsError.incompatibleVersion }
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guard let id = value["id"] as? NSNumber, CFGetTypeID(id) != CFBooleanGetTypeID(),
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id.doubleValue >= 0, id.doubleValue <= 9007199254740991, id.doubleValue.rounded() == id.doubleValue,
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let action = value["action"] as? String,
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let payload = value["payload"] as? [String: Any] else { throw NativeSettingsError.invalidRequest }
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switch action {
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case "getState", "settingsReady", "openSettings":
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guard payload.isEmpty else { throw NativeSettingsError.invalidRequest }
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case "setWorkspace":
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guard Set(payload.keys) == Set(["server"]), payload["server"] is String else { throw NativeSettingsError.invalidRequest }
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default: throw NativeSettingsError.invalidRequest
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}
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return NativeSettingsRequest(id: id.intValue, action: action, payload: payload)
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}
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}
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