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Porting zerobin to python 3

This commit is contained in:
sametmax
2015-05-10 19:19:02 +02:00
parent 391df055f9
commit 9b84122414
137 changed files with 22928 additions and 4370 deletions

View File

@ -13,7 +13,9 @@ protocols, etc.), you can manually register each one and then start them all
with engine.start::
s1 = ServerAdapter(cherrypy.engine, MyWSGIServer(host='0.0.0.0', port=80))
s2 = ServerAdapter(cherrypy.engine, another.HTTPServer(host='127.0.0.1', SSL=True))
s2 = ServerAdapter(cherrypy.engine,
another.HTTPServer(host='127.0.0.1',
SSL=True))
s1.subscribe()
s2.subscribe()
cherrypy.engine.start()
@ -54,16 +56,16 @@ hello.py::
#!/usr/bin/python
import cherrypy
class HelloWorld:
\"""Sample request handler class.\"""
def index(self):
return "Hello world!"
index.exposed = True
cherrypy.tree.mount(HelloWorld())
# CherryPy autoreload must be disabled for the flup server to work
cherrypy.config.update({'engine.autoreload_on':False})
cherrypy.config.update({'engine.autoreload.on':False})
Then run :doc:`/deployguide/cherryd` with the '-f' arg::
@ -107,75 +109,92 @@ directive, configure your fastcgi script like the following::
} # end of $HTTP["url"] =~ "^/"
Please see `Lighttpd FastCGI Docs
<http://redmine.lighttpd.net/wiki/lighttpd/Docs:ModFastCGI>`_ for an explanation
of the possible configuration options.
<http://redmine.lighttpd.net/wiki/lighttpd/Docs:ModFastCGI>`_ for
an explanation of the possible configuration options.
"""
import sys
import time
import warnings
class ServerAdapter(object):
"""Adapter for an HTTP server.
If you need to start more than one HTTP server (to serve on multiple
ports, or protocols, etc.), you can manually register each one and then
start them all with bus.start:
start them all with bus.start::
s1 = ServerAdapter(bus, MyWSGIServer(host='0.0.0.0', port=80))
s2 = ServerAdapter(bus, another.HTTPServer(host='127.0.0.1', SSL=True))
s1.subscribe()
s2.subscribe()
bus.start()
"""
def __init__(self, bus, httpserver=None, bind_addr=None):
self.bus = bus
self.httpserver = httpserver
self.bind_addr = bind_addr
self.interrupt = None
self.running = False
def subscribe(self):
self.bus.subscribe('start', self.start)
self.bus.subscribe('stop', self.stop)
def unsubscribe(self):
self.bus.unsubscribe('start', self.start)
self.bus.unsubscribe('stop', self.stop)
def start(self):
"""Start the HTTP server."""
if self.bind_addr is None:
on_what = "unknown interface (dynamic?)"
elif isinstance(self.bind_addr, tuple):
host, port = self.bind_addr
on_what = "%s:%s" % (host, port)
on_what = self._get_base()
else:
on_what = "socket file: %s" % self.bind_addr
if self.running:
self.bus.log("Already serving on %s" % on_what)
return
self.interrupt = None
if not self.httpserver:
raise ValueError("No HTTP server has been created.")
# Start the httpserver in a new thread.
if isinstance(self.bind_addr, tuple):
wait_for_free_port(*self.bind_addr)
import threading
t = threading.Thread(target=self._start_http_thread)
t.setName("HTTPServer " + t.getName())
t.start()
self.wait()
self.running = True
self.bus.log("Serving on %s" % on_what)
start.priority = 75
def _get_base(self):
if not self.httpserver:
return ''
host, port = self.bind_addr
if getattr(self.httpserver, 'ssl_certificate', None) or \
getattr(self.httpserver, 'ssl_adapter', None):
scheme = "https"
if port != 443:
host += ":%s" % port
else:
scheme = "http"
if port != 80:
host += ":%s" % port
return "%s://%s" % (scheme, host)
def _start_http_thread(self):
"""HTTP servers MUST be running in new threads, so that the
main thread persists to receive KeyboardInterrupt's. If an
@ -200,19 +219,19 @@ class ServerAdapter(object):
traceback=True, level=40)
self.bus.exit()
raise
def wait(self):
"""Wait until the HTTP server is ready to receive requests."""
while not getattr(self.httpserver, "ready", False):
if self.interrupt:
raise self.interrupt
time.sleep(.1)
# Wait for port to be occupied
if isinstance(self.bind_addr, tuple):
host, port = self.bind_addr
wait_for_occupied_port(host, port)
def stop(self):
"""Stop the HTTP server."""
if self.running:
@ -226,7 +245,7 @@ class ServerAdapter(object):
else:
self.bus.log("HTTP Server %s already shut down" % self.httpserver)
stop.priority = 25
def restart(self):
"""Restart the HTTP server."""
self.stop()
@ -234,31 +253,33 @@ class ServerAdapter(object):
class FlupCGIServer(object):
"""Adapter for a flup.server.cgi.WSGIServer."""
def __init__(self, *args, **kwargs):
self.args = args
self.kwargs = kwargs
self.ready = False
def start(self):
"""Start the CGI server."""
# We have to instantiate the server class here because its __init__
# starts a threadpool. If we do it too early, daemonize won't work.
from flup.server.cgi import WSGIServer
self.cgiserver = WSGIServer(*self.args, **self.kwargs)
self.ready = True
self.cgiserver.run()
def stop(self):
"""Stop the HTTP server."""
self.ready = False
class FlupFCGIServer(object):
"""Adapter for a flup.server.fcgi.WSGIServer."""
def __init__(self, *args, **kwargs):
if kwargs.get('bindAddress', None) is None:
import socket
@ -270,7 +291,7 @@ class FlupFCGIServer(object):
self.args = args
self.kwargs = kwargs
self.ready = False
def start(self):
"""Start the FCGI server."""
# We have to instantiate the server class here because its __init__
@ -290,24 +311,26 @@ class FlupFCGIServer(object):
self.fcgiserver._oldSIGs = []
self.ready = True
self.fcgiserver.run()
def stop(self):
"""Stop the HTTP server."""
# Forcibly stop the fcgi server main event loop.
self.fcgiserver._keepGoing = False
# Force all worker threads to die off.
self.fcgiserver._threadPool.maxSpare = self.fcgiserver._threadPool._idleCount
self.fcgiserver._threadPool.maxSpare = (
self.fcgiserver._threadPool._idleCount)
self.ready = False
class FlupSCGIServer(object):
"""Adapter for a flup.server.scgi.WSGIServer."""
def __init__(self, *args, **kwargs):
self.args = args
self.kwargs = kwargs
self.ready = False
def start(self):
"""Start the SCGI server."""
# We have to instantiate the server class here because its __init__
@ -327,7 +350,7 @@ class FlupSCGIServer(object):
self.scgiserver._oldSIGs = []
self.ready = True
self.scgiserver.run()
def stop(self):
"""Stop the HTTP server."""
self.ready = False
@ -344,19 +367,21 @@ def client_host(server_host):
return '127.0.0.1'
if server_host in ('::', '::0', '::0.0.0.0'):
# :: is IN6ADDR_ANY, which should answer on localhost.
# ::0 and ::0.0.0.0 are non-canonical but common ways to write IN6ADDR_ANY.
# ::0 and ::0.0.0.0 are non-canonical but common
# ways to write IN6ADDR_ANY.
return '::1'
return server_host
def check_port(host, port, timeout=1.0):
"""Raise an error if the given port is not free on the given host."""
if not host:
raise ValueError("Host values of '' or None are not allowed.")
host = client_host(host)
port = int(port)
import socket
# AF_INET or AF_INET6 socket
# Get the correct address family for our host (allows IPv6 addresses)
try:
@ -364,10 +389,12 @@ def check_port(host, port, timeout=1.0):
socket.SOCK_STREAM)
except socket.gaierror:
if ':' in host:
info = [(socket.AF_INET6, socket.SOCK_STREAM, 0, "", (host, port, 0, 0))]
info = [(
socket.AF_INET6, socket.SOCK_STREAM, 0, "", (host, port, 0, 0)
)]
else:
info = [(socket.AF_INET, socket.SOCK_STREAM, 0, "", (host, port))]
for res in info:
af, socktype, proto, canonname, sa = res
s = None
@ -378,25 +405,27 @@ def check_port(host, port, timeout=1.0):
s.settimeout(timeout)
s.connect((host, port))
s.close()
raise IOError("Port %s is in use on %s; perhaps the previous "
"httpserver did not shut down properly." %
(repr(port), repr(host)))
except socket.error:
if s:
s.close()
else:
raise IOError("Port %s is in use on %s; perhaps the previous "
"httpserver did not shut down properly." %
(repr(port), repr(host)))
# Feel free to increase these defaults on slow systems:
free_port_timeout = 0.1
occupied_port_timeout = 1.0
def wait_for_free_port(host, port, timeout=None):
"""Wait for the specified port to become free (drop requests)."""
if not host:
raise ValueError("Host values of '' or None are not allowed.")
if timeout is None:
timeout = free_port_timeout
for trial in range(50):
try:
# we are expecting a free port, so reduce the timeout
@ -406,22 +435,32 @@ def wait_for_free_port(host, port, timeout=None):
time.sleep(timeout)
else:
return
raise IOError("Port %r not free on %r" % (port, host))
def wait_for_occupied_port(host, port, timeout=None):
"""Wait for the specified port to become active (receive requests)."""
if not host:
raise ValueError("Host values of '' or None are not allowed.")
if timeout is None:
timeout = occupied_port_timeout
for trial in range(50):
try:
check_port(host, port, timeout=timeout)
except IOError:
# port is occupied
return
else:
time.sleep(timeout)
raise IOError("Port %r not bound on %r" % (port, host))
if host == client_host(host):
raise IOError("Port %r not bound on %r" % (port, host))
# On systems where a loopback interface is not available and the
# server is bound to all interfaces, it's difficult to determine
# whether the server is in fact occupying the port. In this case,
# just issue a warning and move on. See issue #1100.
msg = "Unable to verify that the server is bound on %r" % port
warnings.warn(msg)