49 lines
1.5 KiB
Python
49 lines
1.5 KiB
Python
"""Loopback shim server for the desktop update hand-off.
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Two GET routes: / serves ui.html, /progress serves the status file the
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orchestrator script writes ({"status": "running"|"done"|"error", ...}).
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Exists because a file:// page cannot receive events from a detached
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process. Prints the chosen ephemeral port on stdout, serves until killed.
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"""
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import http.server
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import json
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import socketserver
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import sys
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html_path, status_path = sys.argv[1], sys.argv[2]
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with open(html_path, "rb") as f:
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HTML = f.read()
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class Handler(http.server.BaseHTTPRequestHandler):
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def log_message(self, format, *args): # noqa: A002 - base class signature
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pass
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def do_GET(self):
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if self.path.startswith("/progress"):
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try:
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with open(status_path, "rb") as f:
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body = f.read()
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json.loads(body)
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except Exception:
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body = b'{"status":"running","message":""}'
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ctype = "application/json; charset=utf-8"
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elif self.path == "/":
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body, ctype = HTML, "text/html; charset=utf-8"
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else:
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self.send_response(404)
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self.end_headers()
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return
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self.send_response(200)
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self.send_header("Content-Type", ctype)
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self.send_header("Content-Length", str(len(body)))
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self.send_header("Cache-Control", "no-store")
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self.end_headers()
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self.wfile.write(body)
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with socketserver.TCPServer(("127.0.0.1", 0), Handler) as srv:
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print(srv.server_address[1], flush=True)
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srv.serve_forever()
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