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serve.py
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serve.py
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# -*- coding: utf-8 -*-
import sys
import os
import logging
import json
import socket
import signal
import threading
from multiprocessing import Process, Event
from collections import defaultdict
import urllib2
import uuid
import argparse
repo_root = os.path.abspath(os.path.split(__file__)[0])
sys.path.insert(1, os.path.join(repo_root, "tools", "wptserve"))
from wptserve import server as wptserve, handlers
from wptserve.router import any_method
sys.path.insert(1, os.path.join(repo_root, "tools", "pywebsocket", "src"))
from mod_pywebsocket import standalone as pywebsocket
routes = [("GET", "/tools/runner/*", handlers.file_handler),
(any_method, "/tools/*", handlers.ErrorHandler(404)),
(any_method, "/serve.py", handlers.ErrorHandler(404)),
(any_method, "*.py", handlers.python_script_handler),
("GET", "*.asis", handlers.as_is_handler),
("GET", "*", handlers.file_handler),
]
rewrites = [("GET", "/resources/WebIDLParser.js", "/resources/webidl2/lib/webidl2.js")]
subdomains = [u"www",
u"www1",
u"www2",
u"天気の良い日",
u"élève"]
logger = None
def default_logger(level):
logger = logging.getLogger("web-platform-tests")
logging.basicConfig(level=getattr(logging, level.upper()))
return logger
def open_socket(port):
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
if port != 0:
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
sock.bind(('127.0.0.1', port))
sock.listen(5)
return sock
def get_port():
free_socket = open_socket(0)
port = free_socket.getsockname()[1]
logger.debug("Going to use port %s" % port)
free_socket.close()
return port
class ServerProc(object):
def __init__(self):
self.proc = None
self.daemon = None
self.stop = Event()
def start(self, init_func, config, port):
self.proc = Process(target=self.create_daemon, args=(init_func, config, port))
self.proc.daemon = True
self.proc.start()
def create_daemon(self, init_func, config, port):
try:
self.daemon = init_func(config, port)
except socket.error:
logger.error("Socket error on port %s" % port)
raise
if self.daemon:
self.daemon.start(block=False)
try:
self.stop.wait()
except KeyboardInterrupt:
pass
def wait(self):
self.stop.set()
self.proc.join()
def kill(self):
self.stop.set()
self.proc.terminate()
self.proc.join()
def check_subdomains(config, subdomains):
port = get_port()
wrapper = ServerProc()
wrapper.start(start_http_server, config, port)
rv = {}
for subdomain, (punycode, host) in subdomains.iteritems():
domain = "%s.%s" % (punycode, host)
try:
urllib2.urlopen("http://%s:%d/" % (domain, port))
except Exception as e:
if config["external_domain"]:
external = "%s.%s" % (punycode, config["external_domain"])
logger.warning("Using external server %s for subdomain %s" % (external, subdomain))
rv[subdomain] = external
else:
logger.critical("Failed probing domain %s and no external fallback configured. You may need to edit /etc/hosts or similar." % domain)
sys.exit(1)
else:
rv[subdomain] = "%s.%s" % (punycode, host)
wrapper.wait()
return rv
def get_subdomains(config):
#This assumes that the tld is ascii-only or already in punycode
host = config["host"]
return {subdomain: (subdomain.encode("idna"), host)
for subdomain in subdomains}
def start_servers(config, ports):
servers = defaultdict(list)
host = config["host"]
for scheme, ports in ports.iteritems():
assert len(ports) == {"http":2}.get(scheme, 1)
for port in ports:
init_func = {"http":start_http_server,
"https":start_https_server,
"ws":start_ws_server,
"wss":start_wss_server}[scheme]
server_proc = ServerProc()
server_proc.start(init_func, config, port)
logger.info("Started server at %s://%s:%s" % (scheme, config["host"], port))
servers[scheme].append((port, server_proc))
return servers
def start_http_server(config, port):
return wptserve.WebTestHttpd(host=config["host"],
port=port,
doc_root=repo_root,
routes=routes,
rewrites=rewrites,
config=config,
use_ssl=False,
certificate=None)
def start_https_server(config, port):
return
class WebSocketDaemon(object):
def __init__(self, host, port, doc_root, handlers_root, log_level):
self.host = host
opts, args = pywebsocket._parse_args_and_config(["-H", host,
"-p", port,
"-d", doc_root,
"-w", handlers_root,
"--log-level", log_level])
opts.cgi_directories = []
opts.is_executable_method = None
self.server = pywebsocket.WebSocketServer(opts)
ports = [item[0].getsockname()[1] for item in self.server._sockets]
assert all(item == ports[0] for item in ports)
self.port = ports[0]
self.started = False
self.server_thread = None
def start(self, block=False):
logger.info("Starting websockets server on %s:%s" % (self.host, self.port))
self.started = True
if block:
self.server.serve_forever()
else:
self.server_thread = threading.Thread(target=self.server.serve_forever)
self.server_thread.setDaemon(True) # don't hang on exit
self.server_thread.start()
def stop(self):
"""
Stops the server.
If the server is not running, this method has no effect.
"""
if self.started:
try:
self.server.shutdown()
self.server.server_close()
self.server_thread.join()
self.server_thread = None
logger.info("Stopped websockets server on %s:%s" % (self.host, self.port))
except AttributeError:
pass
self.started = False
self.server = None
def start_ws_server(config, port):
return WebSocketDaemon(config["host"],
str(port),
repo_root,
os.path.join(repo_root, "websockets", "handlers"),
"debug")
def start_wss_server(config, port):
return
def get_ports(config):
rv = defaultdict(list)
for scheme, ports in config["ports"].iteritems():
for i, port in enumerate(ports):
if port == "auto":
port = get_port()
else:
port = port
rv[scheme].append(port)
return rv
def normalise_config(config, domains, ports):
ports_ = {}
for scheme, ports_used in ports.iteritems():
ports_[scheme] = ports_used
domains_ = domains.copy()
domains_[""] = config["host"]
return {"host":config["host"],
"domains":domains_,
"ports": ports_}
def start(config):
ports = get_ports(config)
domains = get_subdomains(config)
if config["check_subdomains"]:
domains = check_subdomains(config, domains)
config_ = normalise_config(config, domains, ports)
servers = start_servers(config_, ports)
return config_, servers
def iter_procs(servers):
for servers in servers.values():
for port, server in servers:
yield server.proc
def merge_json(base_obj, override_obj):
rv = {}
for key, value in base_obj.iteritems():
if key not in override_obj:
rv[key] = value
else:
if isinstance(value, dict):
rv[key] = merge_json(value, override_obj[key])
else:
rv[key] = override_obj[key]
return rv
def load_config(default_path, override_path=None):
if os.path.exists(default_path):
with open(default_path) as f:
base_obj = json.load(f)
else:
raise ValueError("Config path %s does not exist" % default_path)
if os.path.exists(override_path):
with open(override_path) as f:
override_obj = json.load(f)
else:
override_obj = {}
return merge_json(base_obj, override_obj)
def main():
global logger
config = load_config("config.default.json",
"config.json")
logger = default_logger(config["log_level"])
config_, servers = start(config)
try:
while any(item.is_alive() for item in iter_procs(servers)):
for item in iter_procs(servers):
item.join(1)
except KeyboardInterrupt:
logger.info("Shutting down")
if __name__ == "__main__":
main()