"""HTTP server that serves the Guardian Daily Newscast MP3 index page and audio files."""
import os
import json
import threading
from http.server import HTTPServer, SimpleHTTPRequestHandler
from socketserver import ThreadingMixIn
from urllib.parse import unquote
from loguru import logger
class ThreadingHTTPServer(ThreadingMixIn, HTTPServer):
"""HTTP server that handles each request in a new thread."""
daemon_threads = True
class NewscastHandler(SimpleHTTPRequestHandler):
"""Custom handler that serves a dynamic MP3 index at / and static files below."""
data_dir: str = "/app/data"
def do_GET(self):
if self.path == "/" or self.path == "":
self.serve_index()
else:
# Strip any leading / to get a relative path
rel_path = self.path.lstrip("/")
# Prevent directory traversal
if ".." in rel_path or rel_path.startswith("/"):
self.send_error(403, "Forbidden")
return
super().do_GET()
def serve_index(self):
"""Serve the dynamic MP3 listing page."""
audio_dir = os.path.join(self.data_dir, "audio")
scripts_file = os.path.join(self.data_dir, "scripts.json")
# Load script metadata for timestamps
scripts_map = {}
if os.path.exists(scripts_file):
try:
with open(scripts_file, "r", encoding="utf-8") as f:
scripts = json.load(f)
for item in scripts:
scripts_map[item["headline"]] = item
except (json.JSONDecodeError, KeyError):
pass
mp3_files = []
if os.path.isdir(audio_dir):
mp3_files = sorted(
f for f in os.listdir(audio_dir) if f.lower().endswith(".mp3")
)
html = _generate_index(mp3_files, scripts_map)
self.send_response(200)
self.send_header("Content-Type", "text/html; charset=utf-8")
self.send_header("Content-Length", str(len(html.encode("utf-8"))))
self.end_headers()
self.wfile.write(html.encode("utf-8"))
def log_message(self, format, *args):
"""Suppress per-request logs to avoid noisy output."""
pass
def _generate_index(mp3_files, scripts_map):
"""Generate the HTML index page for the MP3 newscast."""
audio_entries = ""
for f in mp3_files:
safe_name = f.replace('"', """)
audio_entries += f"""
No newscast files available yet. The pipeline will populate this directory.
'
return f"""
Guardian Daily Newscast
Guardian Daily Newscast
Daily US news — spoken by AI
{audio_entries}
"""
def run_server(port: int, data_dir: str) -> None:
"""Start the HTTP server in a background thread and block."""
os.chdir("/") # Serve from root (paths are absolute)
NewscastHandler.data_dir = data_dir
handler = lambda *a, **kw: NewscastHandler(
*a, directory=data_dir, **kw
)
server = ThreadingHTTPServer(("0.0.0.0", port), handler)
logger.info(f"Web server listening on port {port}")
server.serve_forever()