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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at https://curl.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is
# furnished to do so, under the terms of the COPYING file.
#
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# KIND, either express or implied.
#
# SPDX-License-Identifier: curl
#
###########################################################################
#
import logging
import os
import socket
import subprocess
import time
from datetime import timedelta, datetime
from json import JSONEncoder
from typing import Dict
from .curl import CurlClient
from .env import Env
from .ports import alloc_ports_and_do
log = logging.getLogger(__name__)
class Caddy:
PORT_SPECS = {
'caddy': socket.SOCK_STREAM,
'caddys': socket.SOCK_STREAM,
}
def __init__(self, env: Env):
self.env = env
self._caddy = os.environ['CADDY'] if 'CADDY' in os.environ else env.caddy
self._caddy_dir = os.path.join(env.gen_dir, 'caddy')
self._docs_dir = os.path.join(self._caddy_dir, 'docs')
self._conf_file = os.path.join(self._caddy_dir, 'Caddyfile')
self._error_log = os.path.join(self._caddy_dir, 'caddy.log')
self._tmp_dir = os.path.join(self._caddy_dir, 'tmp')
self._process = None
self._http_port = 0
self._https_port = 0
self._rmf(self._error_log)
@property
def docs_dir(self):
return self._docs_dir
@property
def port(self) -> int:
return self._https_port
def clear_logs(self):
self._rmf(self._error_log)
def is_running(self):
if self._process:
self._process.poll()
return self._process.returncode is None
return False
def start_if_needed(self):
if not self.is_running():
return self.start()
return True
def initial_start(self):
def startup(ports: Dict[str, int]) -> bool:
self._http_port = ports['caddy']
self._https_port = ports['caddys']
if self.start():
self.env.update_ports(ports)
return True
self.stop()
self._http_port = 0
self._https_port = 0
return False
return alloc_ports_and_do(Caddy.PORT_SPECS, startup,
self.env.gen_root, max_tries=3)
def start(self, wait_live=True):
assert self._http_port > 0 and self._https_port > 0
self._mkpath(self._tmp_dir)
if self._process:
self.stop()
self._write_config()
args = [
self._caddy, 'run'
]
caddyerr = open(self._error_log, 'a')
self._process = subprocess.Popen(args=args, cwd=self._caddy_dir, stderr=caddyerr)
if self._process.returncode is not None:
return False
return not wait_live or self.wait_live(timeout=timedelta(seconds=Env.SERVER_TIMEOUT))
def stop(self, wait_dead=True):
self._mkpath(self._tmp_dir)
if self._process:
self._process.terminate()
self._process.wait(timeout=2)
self._process = None
return not wait_dead or self.wait_dead(timeout=timedelta(seconds=5))
return True
def restart(self):
self.stop()
return self.start()
def wait_dead(self, timeout: timedelta):
curl = CurlClient(env=self.env, run_dir=self._tmp_dir)
try_until = datetime.now() + timeout
while datetime.now() < try_until:
check_url = f'https://{self.env.domain1}:{self.port}/'
r = curl.http_get(url=check_url)
if r.exit_code != 0:
return True
log.debug(f'waiting for caddy to stop responding: {r}')
time.sleep(.1)
log.debug(f"Server still responding after {timeout}")
return False
def wait_live(self, timeout: timedelta):
curl = CurlClient(env=self.env, run_dir=self._tmp_dir)
try_until = datetime.now() + timeout
while datetime.now() < try_until:
check_url = f'https://{self.env.domain1}:{self.port}/'
r = curl.http_get(url=check_url)
if r.exit_code == 0:
return True
time.sleep(.1)
log.error(f"Caddy still not responding after {timeout}")
return False
def _rmf(self, path):
if os.path.exists(path):
return os.remove(path)
def _mkpath(self, path):
if not os.path.exists(path):
return os.makedirs(path)
def _write_config(self):
domain1 = self.env.domain1
creds1 = self.env.get_credentials(domain1)
assert creds1 # convince pytype this isn't None
domain2 = self.env.domain2
creds2 = self.env.get_credentials(domain2)
assert creds2 # convince pytype this isn't None
self._mkpath(self._docs_dir)
self._mkpath(self._tmp_dir)
with open(os.path.join(self._docs_dir, 'data.json'), 'w') as fd:
data = {
'server': f'{domain1}',
}
fd.write(JSONEncoder().encode(data))
with open(self._conf_file, 'w') as fd:
conf = [ # base server config
'{',
f' http_port {self._http_port}',
f' https_port {self._https_port}',
' log default {',
' level ERROR',
'}',
f' servers :{self._https_port} {{',
' protocols h3 h2 h1',
' }',
'}',
f'{domain1}:{self._https_port} {{',
' file_server * {',
f' root {self._docs_dir}',
' }',
f' tls {creds1.cert_file} {creds1.pkey_file}',
'}',
]
if self.env.http_port > 0:
conf.extend([
f'{domain2} {{',
f' reverse_proxy /* http://localhost:{self.env.http_port} {{',
' }',
f' tls {creds2.cert_file} {creds2.pkey_file}',
'}',
])
fd.write("\n".join(conf))
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