3x-ui/frontend/src/schemas/primitives/outbound-protocol.ts

// xray-core lowercases a protocol id before it resolves the handler, so a
// template pasted as "Freedom" still runs as the freedom outbound.
export function isOutboundProtocol(
  outbound: { protocol?: unknown } | null | undefined,
  id: string,
): boolean {
  const protocol = outbound?.protocol;
  return typeof protocol === 'string' && protocol.toLowerCase() === id;
}

export const OutboundProtocols = Object.freeze({
  Freedom: 'freedom',
  Blackhole: 'blackhole',
  DNS: 'dns',
  VMess: 'vmess',
  VLESS: 'vless',
  Trojan: 'trojan',
  Shadowsocks: 'shadowsocks',
  Wireguard: 'wireguard',
  AmneziaWG: 'amneziawg',
  Hysteria: 'hysteria',
  Socks: 'socks',
  HTTP: 'http',
  Loopback: 'loopback',
});

export const OutboundDomainStrategies = Object.freeze([
  'AsIs',
  'UseIP',
  'UseIPv4',
  'UseIPv6',
  'UseIPv6v4',
  'UseIPv4v6',
  'ForceIP',
  'ForceIPv6v4',
  'ForceIPv6',
  'ForceIPv4v6',
  'ForceIPv4',
] as const);

export type OutboundDomainStrategy = (typeof OutboundDomainStrategies)[number];