112 lines
4.2 KiB
Dart
112 lines
4.2 KiB
Dart
import 'dart:io';
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import 'package:device_info_plus/device_info_plus.dart';
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import 'package:flutter/foundation.dart';
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import 'app_logger.dart';
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import 'platform_detector.dart';
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/// What this install should call itself when talking to media servers and
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/// companion peers: a real platform name, the hardware model, and the
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/// user-facing device name (Plex dashboards show it as the "Player";
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/// Jellyfin as the "Device").
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class DeviceIdentity {
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/// 'Android' | 'iOS' | 'tvOS' | 'macOS' | 'Windows' | 'Linux', falling back
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/// to [Platform.operatingSystem] when detection fails.
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final String platform;
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/// Hardware model for `X-Plex-Device`, e.g. 'AFTKM' (Fire TV), 'iPhone',
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/// 'Apple TV'. Null when unresolvable.
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final String? deviceModel;
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/// Friendly, usually user-assigned name (Settings > About > Device name on
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/// Android, computer name on desktop). Null when unresolvable — callers
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/// pick their own fallback. May contain characters that are not valid in
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/// HTTP headers; pass through [sanitizeHeaderValue] before sending.
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final String? deviceName;
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final bool isTv;
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const DeviceIdentity({required this.platform, this.deviceModel, this.deviceName, this.isTv = false});
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}
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/// Resolves the device identity once per process and memoizes it. Never
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/// throws — platform-channel failures (tests, exotic platforms) degrade to
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/// [Platform.operatingSystem] with null name/model.
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class DeviceIdentityService {
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DeviceIdentityService._();
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static Future<DeviceIdentity>? _cached;
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static Future<DeviceIdentity> resolve() => _cached ??= _resolve();
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@visibleForTesting
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static void debugOverride(DeviceIdentity? identity) {
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_cached = identity == null ? null : Future.value(identity);
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}
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static Future<DeviceIdentity> _resolve() async {
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final deviceInfo = DeviceInfoPlugin();
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final isTv = TvDetectionService.isTVSync();
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try {
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if (Platform.isAndroid) {
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final androidInfo = await deviceInfo.androidInfo;
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final assignedName = await TvDetectionService.getAndroidDeviceName();
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return DeviceIdentity(
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platform: 'Android',
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deviceModel: androidInfo.model,
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deviceName: assignedName ?? '${androidInfo.brand} ${androidInfo.model}',
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isTv: isTv,
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);
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}
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if (Platform.isIOS) {
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final iosInfo = await deviceInfo.iosInfo;
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if (TvDetectionService.isAppleTVSync()) {
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return DeviceIdentity(platform: 'tvOS', deviceModel: 'Apple TV', deviceName: iosInfo.name, isTv: true);
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}
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return DeviceIdentity(platform: 'iOS', deviceModel: iosInfo.model, deviceName: iosInfo.name, isTv: isTv);
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}
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if (Platform.isMacOS) {
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final macInfo = await deviceInfo.macOsInfo;
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return DeviceIdentity(
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platform: 'macOS',
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deviceModel: macInfo.model,
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deviceName: macInfo.computerName,
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isTv: isTv,
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);
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}
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if (Platform.isWindows) {
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final windowsInfo = await deviceInfo.windowsInfo;
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return DeviceIdentity(
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platform: 'Windows',
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deviceModel: 'Windows',
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deviceName: windowsInfo.computerName,
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isTv: isTv,
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);
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}
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if (Platform.isLinux) {
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final host = Platform.localHostname.trim();
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final name = (host.isNotEmpty && host != 'localhost') ? host : (await deviceInfo.linuxInfo).name;
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return DeviceIdentity(platform: 'Linux', deviceModel: 'Linux', deviceName: name, isTv: isTv);
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}
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} catch (e) {
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appLogger.w('DeviceIdentity: failed to resolve device info', error: e);
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}
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return DeviceIdentity(platform: Platform.operatingSystem, isTv: isTv);
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}
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}
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/// Makes a free-form device name safe to send as an HTTP header value:
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/// drops CR/LF and any code unit above 0xFF (dart:io's HttpHeaders throws a
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/// FormatException on non-latin-1 — an emoji in an iPhone name would
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/// otherwise kill every request), trims, and returns null when nothing
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/// usable remains.
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String? sanitizeHeaderValue(String? value) {
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if (value == null) return null;
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final filtered = String.fromCharCodes(value.codeUnits.where((unit) => unit != 0x0D && unit != 0x0A && unit <= 0xFF));
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final trimmed = filtered.trim();
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return trimmed.isEmpty ? null : trimmed;
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}
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