wehub-resource-sync
a789495a98
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76 lines
2.5 KiB
Swift
76 lines
2.5 KiB
Swift
import Foundation
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/// Describes a jcode server gateway endpoint.
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///
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/// The server exposes:
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/// - `GET http://host:port/health` reachability + version probe
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/// - `POST http://host:port/pair` pairing-code -> auth-token exchange
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/// - `ws://host:port/ws` newline-delimited JSON protocol over WebSocket
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public struct Gateway: Hashable, Sendable {
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public static let defaultPort: UInt16 = 7643
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public var host: String
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public var port: UInt16
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public init(host: String, port: UInt16 = Gateway.defaultPort) {
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self.host = host
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self.port = port
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}
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public var healthURL: URL {
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url(scheme: "http", path: "/health")
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}
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public var pairURL: URL {
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url(scheme: "http", path: "/pair")
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}
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public var webSocketURL: URL {
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url(scheme: "ws", path: "/ws")
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}
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private func url(scheme: String, path: String) -> URL {
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var components = URLComponents()
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components.scheme = scheme
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components.host = host
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components.port = Int(port)
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components.path = path
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guard let url = components.url else {
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// Host strings from pairing are validated before reaching here;
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// a failure indicates programmer error.
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preconditionFailure("invalid gateway endpoint: \(scheme)://\(host):\(port)\(path)")
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}
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return url
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}
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}
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/// Parses `jcode://pair?host=H&port=P&code=C` URIs from QR codes.
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public enum PairURI {
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public struct Payload: Equatable, Sendable {
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public var gateway: Gateway
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public var code: String
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public init(gateway: Gateway, code: String) {
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self.gateway = gateway
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self.code = code
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}
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}
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public static func parse(_ string: String) -> Payload? {
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guard let components = URLComponents(string: string),
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components.scheme == "jcode",
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components.host == "pair" || components.path == "pair"
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|| components.host == nil && components.path == "/pair"
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else { return nil }
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let items = components.queryItems ?? []
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func value(_ name: String) -> String? {
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items.first(where: { $0.name == name })?.value
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}
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guard let host = value("host"), !host.isEmpty,
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let code = value("code"), !code.isEmpty
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else { return nil }
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let port = value("port").flatMap(UInt16.init) ?? Gateway.defaultPort
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return Payload(gateway: Gateway(host: host, port: port), code: code)
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}
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}
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