手機不在家，也能用 Xcode 遠端佈署 iOS App

xcrun devicectl list devices   # 要看到 available (paired)

nc -z -G 3 <橋接IP> 49152 && echo OK

{
  "bridge_ip": "<橋接IP>",
  "bridge_host": "bridge.local",
  "phone_host": "<手機名稱>.local",
  "interface": "en0",
  "port": 49152,
  "interval": 30,
  "records": {}
}

#!/usr/bin/env python3
"""手機在區網時記下它的配對記錄；不在時，在 Mac 上假裝它還在，指向路由器的橋接 IP。"""
import json
import os
import re
import signal
import socket
import subprocess
import sys
import time

CFG = os.path.join(os.path.dirname(os.path.abspath(__file__)), "config.json")
SVC = "_remotepairing._tcp"
KEEP = 4  # 最多保留、廣播幾筆（手機的記錄名稱會一直換）


def log(*a):
    print(time.strftime("%F %T"), *a, flush=True)


def dns_sd(args, secs):
    """dns-sd 不會自己結束：跑幾秒，收輸出。"""
    p = subprocess.Popen(["dns-sd", *args], stdout=subprocess.PIPE,
                         stderr=subprocess.DEVNULL, text=True)
    time.sleep(secs)
    p.terminate()
    return p.communicate()[0]


def reachable(ip, port):
    try:
        socket.create_connection((ip, port), timeout=2).close()
        return True
    except OSError:
        return False


def phone_home(c):
    """手機名稱解得出區網 IP，而且配對 port 真的連得上（快取的記錄不可信）。"""
    host = c["phone_host"].rstrip(".").lower() + "."
    for line in dns_sd(["-G", "v4", c["phone_host"]], 2).splitlines():
        f = line.split()  # 時間 Add flags 介面 主機 IP TTL
        if (len(f) >= 6 and f[1] == "Add" and f[4].lower() == host
                and f[5] != c["bridge_ip"] and reachable(f[5], c["port"])):
            return True
    return False


def collect(c):
    """把手機目前的真實記錄併進 config，只留最新 KEEP 筆。"""
    host = c["phone_host"].rstrip(".") + "."
    names = set(re.findall(rf"\sAdd\s.*{SVC}\.\s+(\S+)", dns_sd(["-B", SVC, "local."], 3)))
    records = dict(c["records"])
    for n in sorted(names):
        out = dns_sd(["-L", n, SVC, "local."], 2)
        m = re.search(r"reached at .*\n\s*(identifier=.*)", out)
        if f"reached at {host}" in out and m:  # 排除區網裡別的 Apple 裝置
            txt = m.group(1).split()
            ident = txt[0].split("=", 1)[1]
            records.pop(ident, None)
            records[ident] = txt
    records = dict(list(records.items())[-KEEP:])
    if list(records.items()) != list(c["records"].items()):
        c["records"] = records
        with open(CFG, "w") as f:
            json.dump(c, f, indent=2)


def advertise(c):
    return [subprocess.Popen(
        ["dns-sd", "-i", c["interface"], "-P", "bridge-" + ident[:8], SVC, "local.",
         str(c["port"]), c["bridge_host"], c["bridge_ip"], *txt],
        stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
        for ident, txt in c["records"].items()]


def withdraw(procs):
    for p in procs:
        p.terminate()
    for p in procs:
        p.wait()


def main():
    signal.signal(signal.SIGTERM, lambda *_: sys.exit(0))  # 讓 finally 撤掉假記錄
    procs, misses, route_ok = [], 0, None
    try:
        while True:
            c = json.load(open(CFG))
            if phone_home(c):
                misses, route_ok = 0, None
                if procs:
                    withdraw(procs)
                    procs = []
                    log("phone is home, adverts withdrawn")
                collect(c)
            else:
                misses += 1  # 連續兩次沒看到才算不在，避免偶發誤判
                if misses >= 2 and c["records"] and not (procs and all(p.poll() is None for p in procs)):
                    withdraw(procs)
                    procs = advertise(c)
                    log("phone is away, adverts up ->", c["bridge_ip"])
                if procs:
                    ok = reachable(c["bridge_ip"], c["port"])
                    if ok != route_ok:  # 只在狀態改變時記一筆
                        log("bridge IP reachable (phone answers via VPN)" if ok else "bridge IP unreachable: check the router rules and the phone's WireGuard")
                        route_ok = ok
            time.sleep(c["interval"])
    finally:
        withdraw(procs)


if __name__ == "__main__":
    main()

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>Label</key><string>com.example.iphone-bridge</string>
    <key>ProgramArguments</key>
    <array>
        <string>/usr/bin/python3</string>
        <string>/Users/你的帳號/.iphone-bridge/advertise.py</string>
    </array>
    <key>RunAtLoad</key><true/>
    <key>KeepAlive</key><true/>
    <key>ThrottleInterval</key><integer>30</integer>
    <key>StandardOutPath</key><string>/Users/你的帳號/.iphone-bridge/advertise.log</string>
    <key>StandardErrorPath</key><string>/Users/你的帳號/.iphone-bridge/advertise.log</string>
</dict>
</plist>

launchctl bootstrap gui/$(id -u) ~/Library/LaunchAgents/com.example.iphone-bridge.plist

launchctl bootout gui/$(id -u)/com.example.iphone-bridge
launchctl bootstrap gui/$(id -u) ~/Library/LaunchAgents/com.example.iphone-bridge.plist