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https://github.com/abue-ammar/tinycast.git
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Jonas List
ca3da2ee4e
* Run extensions that speak WebSocket A bundled `ws` handshakes through `http.request` and wants a raw socket back, which the fetch-backed shim had none of. Sockets are `URLSessionWebSocketTask` now, and the upgrade path hands `ws` one that re-frames RFC 6455 both ways. Home Assistant is the reference case. * Resolve a .local host without joining a multicast group Home Assistant's default `homeassistant.local` is resolved by the extension itself with multicast-dns, which died on `dgram.createSocket`. `dgram` now answers an address query out of `getaddrinfo` — mDNSResponder handles `.local` — so nothing multicasts and no entitlement is needed. * Harden the WebSocket and dgram shims A rejected host call poisoned the send queue, so every later send and the close after it rejected too; the queue now recovers while the caller still sees the failure. A ping is answered by the peer through `URLSessionWebSocketTask`, not by a pong the adapter invents. An upgrade no listener claims destroys the socket, the way Node does, so the native task goes with it. `dgram` answers address questions only. And a socket id that is not a whole number falls back instead of trapping.
37 lines
1.5 KiB
Swift
37 lines
1.5 KiB
Swift
import Foundation
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/// Host-name lookups for the `dgram` shim: the system resolver answers `.local` through Bonjour.
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enum ExtensionNameResolver {
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static func resolve(_ name: RenderValue?) async -> [String] {
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let host = name?.stringValue ?? ""
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guard !host.isEmpty else { return [] }
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return await Task.detached(priority: .userInitiated) { addresses(of: host) }.value
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}
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/// Blocking, hence the detached task.
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private static func addresses(of host: String) -> [String] {
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var hints = addrinfo()
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hints.ai_family = AF_INET
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hints.ai_socktype = SOCK_STREAM
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var head: UnsafeMutablePointer<addrinfo>?
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guard getaddrinfo(host, nil, &hints, &head) == 0, let first = head else { return [] }
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defer { freeaddrinfo(first) }
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var found: [String] = []
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var entry: UnsafeMutablePointer<addrinfo>? = first
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while let current = entry {
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var text = [CChar](repeating: 0, count: Int(NI_MAXHOST))
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if getnameinfo(
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current.pointee.ai_addr, current.pointee.ai_addrlen, &text, socklen_t(text.count),
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nil, 0, NI_NUMERICHOST) == 0
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{
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let digits = text.prefix { $0 != 0 }.map { UInt8(bitPattern: $0) }
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let address = String(decoding: digits, as: UTF8.self)
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if !found.contains(address) { found.append(address) }
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}
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entry = current.pointee.ai_next
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}
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return found
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}
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}
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