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# -*- coding: utf-8 -*-
# This file is part of the Rocket Web Server
# Copyright (c) 2010 Timothy Farrell
# Import System Modules
import sys
import errno
import socket
import logging
import platform
# Define Constants
VERSION = '1.2.2'
SERVER_NAME = socket.gethostname()
SERVER_SOFTWARE = 'Rocket %s' % VERSION
HTTP_SERVER_SOFTWARE = '%s Python/%s' % (SERVER_SOFTWARE, sys.version.split(' ')[0])
BUF_SIZE = 16384
SOCKET_TIMEOUT = 1 # in secs
THREAD_STOP_CHECK_INTERVAL = 1 # in secs, How often should threads check for a server stop message?
IS_JYTHON = platform.system() == 'Java' # Handle special cases for Jython
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# -*- coding: utf-8 -*-
# This file is part of the Rocket Web Server
# Copyright (c) 2011 Timothy Farrell
# Import System Modules
import sys
import errno
import socket
import logging
import platform
import traceback
# Define Constants
VERSION = '1.2.4'
SERVER_NAME = socket.gethostname()
SERVER_SOFTWARE = 'Rocket %s' % VERSION
HTTP_SERVER_SOFTWARE = '%s Python/%s' % (SERVER_SOFTWARE, sys.version.split(' ')[0])
BUF_SIZE = 16384
SOCKET_TIMEOUT = 1 # in secs
THREAD_STOP_CHECK_INTERVAL = 1 # in secs, How often should threads check for a server stop message?
IS_JYTHON = platform.system() == 'Java' # Handle special cases for Jython
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import time
import socket
try:
import ssl
has_ssl = True
except ImportError:
has_ssl = False
# package imports removed in monolithic build
class Connection(object):
__slots__ = [
'setblocking',
'sendall',
'shutdown',
'makefile',
'fileno',
'client_addr',
'client_port',
'server_port',
'socket',
'start_time',
'ssl',
'secure'
]
def __init__(self, sock_tuple, port, secure=False):
self.client_addr, self.client_port = sock_tuple[1]
self.server_port = port
self.socket = sock_tuple[0]
self.start_time = time.time()
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import time
import socket
try:
import ssl
has_ssl = True
except ImportError:
has_ssl = False
# Import Package Modules
# package imports removed in monolithic build
# TODO - This part is still very experimental.
#from .filelike import FileLikeSocket
class Connection(object):
__slots__ = [
'setblocking',
'sendall',
'shutdown',
'makefile',
'fileno',
'client_addr',
'client_port',
'server_port',
'socket',
'start_time',
'ssl',
'secure',
'recv',
'send',
'read',
'write'
]
def __init__(self, sock_tuple, port, secure=False):
self.client_addr, self.client_port = sock_tuple[1]
self.server_port = port
self.socket = sock_tuple[0]
self.start_time = time.time()
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self.socket.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
self.socket.settimeout(SOCKET_TIMEOUT)
self.sendall = self.socket.sendall
self.shutdown = self.socket.shutdown
self.fileno = self.socket.fileno
self.makefile = self.socket.makefile
self.setblocking = self.socket.setblocking
def close(self):
if hasattr(self.socket, '_sock'):
try:
self.socket._sock.close()
except socket.error:
info = sys.exc_info()
if info[1].errno != socket.EBADF:
raise info[1]
else:
pass
self.socket.close()
# Monolithic build...end of module: rocket\connection.py
# Monolithic build...start of module: rocket\listener.py
# Import System Modules
import os
import socket
import logging
import traceback
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self.socket.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
self.socket.settimeout(SOCKET_TIMEOUT)
self.sendall = self.socket.sendall
self.shutdown = self.socket.shutdown
self.fileno = self.socket.fileno
self.setblocking = self.socket.setblocking
self.recv = self.socket.recv
self.send = self.socket.send
self.makefile = self.socket.makefile
# FIXME - this is not ready for prime-time yet.
# def makefile(self, buf_size=BUF_SIZE):
# return FileLikeSocket(self, buf_size)
def close(self):
if hasattr(self.socket, '_sock'):
try:
self.socket._sock.close()
except socket.error:
info = sys.exc_info()
if info[1].args[0] != socket.EBADF:
raise info[1]
else:
pass
self.socket.close()
# Monolithic build...end of module: rocket\connection.py
# Monolithic build...start of module: rocket\filelike.py
# Import System Modules
import socket
try:
from io import StringIO
except ImportError:
try:
from cStringIO import StringIO
except ImportError:
from StringIO import StringIO
# Import Package Modules
# package imports removed in monolithic build
class FileLikeSocket(object):
def __init__(self, conn, buf_size=BUF_SIZE):
self.conn = conn
self.buf_size = buf_size
self.buffer = StringIO()
self.content_length = None
if self.conn.socket.gettimeout() == 0.0:
self.read = self.non_blocking_read
else:
self.read = self.blocking_read
def __iter__(self):
return self
def recv(self, size):
while True:
try:
return self.conn.recv(size)
except socket.error:
exc = sys.exc_info()
e = exc[1]
# FIXME - Don't raise socket_errors_nonblocking or socket_error_eintr
if (e.args[0] not in set()):
raise
def next(self):
data = self.readline()
if data == '':
raise StopIteration
return data
def non_blocking_read(self, size=None):
# Shamelessly adapted from Cherrypy!
bufr = self.buffer
bufr.seek(0, 2)
if size is None:
while True:
data = self.recv(self.buf_size)
if not data:
break
bufr.write(data)
self.buffer = StringIO()
return bufr.getvalue()
else:
buf_len = self.buffer.tell()
if buf_len >= size:
bufr.seek(0)
data = bufr.read(size)
self.buffer = StringIO(bufr.read())
return data
self.buffer = StringIO()
while True:
remaining = size - buf_len
data = self.recv(remaining)
if not data:
break
n = len(data)
if n == size and not buf_len:
return data
if n == remaining:
bufr.write(data)
del data
break
bufr.write(data)
buf_len += n
del data
return bufr.getvalue()
def blocking_read(self, length=None):
if length is None:
if self.content_length is not None:
length = self.content_length
else:
length = 1
try:
data = self.conn.recv(length)
except:
data = b('')
return data
def readline(self):
data = b("")
char = self.read(1)
while char != b('\n') and char is not b(''):
line = repr(char)
data += char
char = self.read(1)
data += char
return data
def readlines(self, hint="ignored"):
return list(self)
def close(self):
self.conn = None
self.content_length = None
# Monolithic build...end of module: rocket\filelike.py
# Monolithic build...start of module: rocket\futures.py
# Import System Modules
import time
try:
from concurrent.futures import Future, ThreadPoolExecutor
from concurrent.futures.thread import _WorkItem
has_futures = True
except ImportError:
has_futures = False
class Future:
pass
class ThreadPoolExecutor:
pass
class _WorkItem:
pass
class WSGIFuture(Future):
def __init__(self, f_dict, *args, **kwargs):
Future.__init__(self, *args, **kwargs)
self.timeout = None
self._mem_dict = f_dict
self._lifespan = 30
self._name = None
self._start_time = time.time()
def set_running_or_notify_cancel(self):
if time.time() - self._start_time >= self._lifespan:
self.cancel()
else:
return super(WSGIFuture, self).set_running_or_notify_cancel()
def remember(self, name, lifespan=None):
self._lifespan = lifespan or self._lifespan
if name in self._mem_dict:
raise NameError('Cannot remember future by name "%s". ' % name + \
'A future already exists with that name.' )
self._name = name
self._mem_dict[name] = self
return self
def forget(self):
if self._name in self._mem_dict and self._mem_dict[self._name] is self:
del self._mem_dict[self._name]
self._name = None
class _WorkItem(object):
def __init__(self, future, fn, args, kwargs):
self.future = future
self.fn = fn
self.args = args
self.kwargs = kwargs
def run(self):
if not self.future.set_running_or_notify_cancel():
return
try:
result = self.fn(*self.args, **self.kwargs)
except BaseException:
e = sys.exc_info()[1]
self.future.set_exception(e)
else:
self.future.set_result(result)
class WSGIExecutor(ThreadPoolExecutor):
multithread = True
multiprocess = False
def __init__(self, *args, **kwargs):
ThreadPoolExecutor.__init__(self, *args, **kwargs)
self.futures = dict()
def submit(self, fn, *args, **kwargs):
if self._shutdown_lock.acquire():
if self._shutdown:
self._shutdown_lock.release()
raise RuntimeError('Cannot schedule new futures after shutdown')
f = WSGIFuture(self.futures)
w = _WorkItem(f, fn, args, kwargs)
self._work_queue.put(w)
self._adjust_thread_count()
self._shutdown_lock.release()
return f
else:
return False
class FuturesMiddleware(object):
"Futures middleware that adds a Futures Executor to the environment"
def __init__(self, app, threads=5):
self.app = app
self.executor = WSGIExecutor(threads)
def __call__(self, environ, start_response):
environ["wsgiorg.executor"] = self.executor
environ["wsgiorg.futures"] = self.executor.futures
return self.app(environ, start_response)
# Monolithic build...end of module: rocket\futures.py
# Monolithic build...start of module: rocket\listener.py
# Import System Modules
import os
import socket
import logging
import traceback
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Thread.__init__(self, *args, **kwargs)
# Instance variables
self.active_queue = active_queue
self.interface = interface
self.addr = interface[0]
self.port = interface[1]
self.secure = len(interface) == 4 and \
os.path.exists(interface[2]) and \
os.path.exists(interface[3])
self.ready = False
# Error Log
self.err_log = logging.getLogger('Rocket.Errors.Port%i' % self.port)
self.err_log.addHandler(NullHandler())
# Build the socket
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Thread.__init__(self, *args, **kwargs)
# Instance variables
self.active_queue = active_queue
self.interface = interface
self.addr = interface[0]
self.port = interface[1]
self.secure = len(interface) >= 4
self.clientcert_req = (len(interface) == 5 and interface[4])
self.thread = None
self.ready = False
# Error Log
self.err_log = logging.getLogger('Rocket.Errors.Port%i' % self.port)
self.err_log.addHandler(NullHandler())
# Build the socket
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return
elif not os.path.exists(interface[3]):
data = (interface[3], interface[0], interface[1])
self.err_log.error("Cannot find certificate file "
"'%s'. Cannot bind to %s:%s" % data)
return
# Set socket options
try:
listener.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
except:
msg = "Cannot share socket. Using %s:%i exclusively."
self.err_log.warning(msg % (self.addr, self.port))
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return
elif not os.path.exists(interface[3]):
data = (interface[3], interface[0], interface[1])
self.err_log.error("Cannot find certificate file "
"'%s'. Cannot bind to %s:%s" % data)
return
if self.clientcert_req and not os.path.exists(interface[4]):
data = (interface[4], interface[0], interface[1])
self.err_log.error("Cannot find root ca certificate file "
"'%s'. Cannot bind to %s:%s" % data)
return
# Set socket options
try:
listener.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
except:
msg = "Cannot share socket. Using %s:%i exclusively."
self.err_log.warning(msg % (self.addr, self.port))
|
︙ | | | ︙ | |
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self.listener = listener
self.ready = True
def wrap_socket(self, sock):
try:
sock = ssl.wrap_socket(sock,
keyfile = self.interface[2],
certfile = self.interface[3],
server_side = True,
ssl_version = ssl.PROTOCOL_SSLv23)
except SSLError:
# Generally this happens when an HTTP request is received on a
# secure socket. We don't do anything because it will be detected
# by Worker and dealt with appropriately.
pass
return sock
def run(self):
if not self.ready:
self.err_log.warning('Listener started when not ready.')
return
if __debug__:
self.err_log.debug('Entering main loop.')
while True:
try:
sock, addr = self.listener.accept()
if self.secure:
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|
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self.listener = listener
self.ready = True
def wrap_socket(self, sock):
try:
if self.clientcert_req:
ca_certs = self.interface[4]
cert_reqs = ssl.CERT_OPTIONAL
sock = ssl.wrap_socket(sock,
keyfile = self.interface[2],
certfile = self.interface[3],
server_side = True,
cert_reqs = cert_reqs,
ca_certs = ca_certs,
ssl_version = ssl.PROTOCOL_SSLv23)
else:
sock = ssl.wrap_socket(sock,
keyfile = self.interface[2],
certfile = self.interface[3],
server_side = True,
ssl_version = ssl.PROTOCOL_SSLv23)
except SSLError:
# Generally this happens when an HTTP request is received on a
# secure socket. We don't do anything because it will be detected
# by Worker and dealt with appropriately.
self.err_log.error('SSL Error: %s' % traceback.format_exc())
pass
return sock
def start(self):
if not self.ready:
self.err_log.warning('Listener started when not ready.')
return
if self.thread is not None and self.thread.isAlive():
self.err_log.warning('Listener already running.')
return
self.thread = Thread(target=self.listen, name="Port" + str(self.port))
self.thread.start()
def isAlive(self):
if self.thread is None:
return False
return self.thread.isAlive()
def join(self):
if self.thread is None:
return
self.ready = False
self.thread.join()
del self.thread
self.thread = None
self.ready = True
def listen(self):
if __debug__:
self.err_log.debug('Entering main loop.')
while True:
try:
sock, addr = self.listener.accept()
if self.secure:
|
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if not self.ready:
if __debug__:
self.err_log.debug('Listener exiting.')
return
else:
continue
except:
self.err_log.error(str(traceback.format_exc()))
# Monolithic build...end of module: rocket\listener.py
# Monolithic build...start of module: rocket\main.py
# Import System Modules
import sys
import time
import socket
import logging
import traceback
try:
from queue import Queue
except ImportError:
from Queue import Queue
# Import Package Modules
# package imports removed in monolithic build
|
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if not self.ready:
if __debug__:
self.err_log.debug('Listener exiting.')
return
else:
continue
except:
self.err_log.error(traceback.format_exc())
# Monolithic build...end of module: rocket\listener.py
# Monolithic build...start of module: rocket\main.py
# Import System Modules
import sys
import time
import socket
import logging
import traceback
from threading import Lock
try:
from queue import Queue
except ImportError:
from Queue import Queue
# Import Package Modules
# package imports removed in monolithic build
|
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min_threads = None,
max_threads = None,
queue_size = None,
timeout = 600,
handle_signals = True):
self.handle_signals = handle_signals
if not isinstance(interfaces, list):
self.interfaces = [interfaces]
else:
self.interfaces = interfaces
if min_threads is None:
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min_threads = None,
max_threads = None,
queue_size = None,
timeout = 600,
handle_signals = True):
self.handle_signals = handle_signals
self.startstop_lock = Lock()
self.timeout = timeout
if not isinstance(interfaces, list):
self.interfaces = [interfaces]
else:
self.interfaces = interfaces
if min_threads is None:
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if max_threads and queue_size > max_threads:
queue_size = max_threads
if isinstance(app_info, dict):
app_info['server_software'] = SERVER_SOFTWARE
monitor_queue = Queue()
active_queue = Queue()
self._monitor = Monitor(monitor_queue, active_queue, timeout)
self._threadpool = ThreadPool(get_method(method),
app_info = app_info,
active_queue=active_queue,
monitor_queue = monitor_queue,
min_threads=min_threads,
max_threads=max_threads)
# Build our socket listeners
self.listeners = [Listener(i, queue_size, active_queue) for i in self.interfaces]
for ndx in range(len(self.listeners)-1, 0, -1):
if not self.listeners[ndx].ready:
del self.listeners[ndx]
if not self.listeners:
log.critical("No interfaces to listen on...closing.")
sys.exit(1)
def _sigterm(self, signum, frame):
log.info('Received SIGTERM')
self.stop()
def _sighup(self, signum, frame):
log.info('Received SIGHUP')
self.restart()
def start(self):
log.info('Starting %s' % SERVER_SOFTWARE)
# Set up our shutdown signals
if self.handle_signals:
try:
import signal
signal.signal(signal.SIGTERM, self._sigterm)
signal.signal(signal.SIGUSR1, self._sighup)
except:
log.debug('This platform does not support signals.')
# Start our worker threads
self._threadpool.start()
# Start our monitor thread
self._monitor.setDaemon(True)
self._monitor.start()
# I know that EXPR and A or B is bad but I'm keeping it for Py2.4
# compatibility.
str_extract = lambda l: (l.addr, l.port, l.secure and '*' or '')
msg = 'Listening on sockets: '
msg += ', '.join(['%s:%i%s' % str_extract(l) for l in self.listeners])
log.info(msg)
for l in self.listeners:
l.start()
tp = self._threadpool
dynamic_resize = tp.dynamic_resize
while not tp.stop_server:
try:
dynamic_resize()
time.sleep(THREAD_STOP_CHECK_INTERVAL)
except KeyboardInterrupt:
# Capture a keyboard interrupt when running from a console
break
except:
if not tp.stop_server:
log.error(str(traceback.format_exc()))
continue
return self.stop()
def stop(self, stoplogging = True):
log.info("Stopping Server")
# Stop listeners
for l in self.listeners:
l.ready = False
if l.isAlive():
l.join()
# Stop Worker threads
self._threadpool.stop()
# Stop Monitor
self._monitor.stop()
if self._monitor.isAlive():
self._monitor.join()
if stoplogging:
logging.shutdown()
def restart(self):
self.stop(False)
self.start()
def CherryPyWSGIServer(bind_addr,
wsgi_app,
numthreads = 10,
server_name = None,
max = -1,
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if max_threads and queue_size > max_threads:
queue_size = max_threads
if isinstance(app_info, dict):
app_info['server_software'] = SERVER_SOFTWARE
self.monitor_queue = Queue()
self.active_queue = Queue()
self._threadpool = ThreadPool(get_method(method),
app_info = app_info,
active_queue = self.active_queue,
monitor_queue = self.monitor_queue,
min_threads = min_threads,
max_threads = max_threads)
# Build our socket listeners
self.listeners = [Listener(i, queue_size, self.active_queue) for i in self.interfaces]
for ndx in range(len(self.listeners)-1, 0, -1):
if not self.listeners[ndx].ready:
del self.listeners[ndx]
if not self.listeners:
log.critical("No interfaces to listen on...closing.")
sys.exit(1)
def _sigterm(self, signum, frame):
log.info('Received SIGTERM')
self.stop()
def _sighup(self, signum, frame):
log.info('Received SIGHUP')
self.restart()
def start(self, background=False):
log.info('Starting %s' % SERVER_SOFTWARE)
self.startstop_lock.acquire()
try:
# Set up our shutdown signals
if self.handle_signals:
try:
import signal
signal.signal(signal.SIGTERM, self._sigterm)
signal.signal(signal.SIGUSR1, self._sighup)
except:
log.debug('This platform does not support signals.')
# Start our worker threads
self._threadpool.start()
# Start our monitor thread
self._monitor = Monitor(self.monitor_queue,
self.active_queue,
self.timeout,
self._threadpool)
self._monitor.setDaemon(True)
self._monitor.start()
# I know that EXPR and A or B is bad but I'm keeping it for Py2.4
# compatibility.
str_extract = lambda l: (l.addr, l.port, l.secure and '*' or '')
msg = 'Listening on sockets: '
msg += ', '.join(['%s:%i%s' % str_extract(l) for l in self.listeners])
log.info(msg)
for l in self.listeners:
l.start()
finally:
self.startstop_lock.release()
if background:
return
while self._monitor.isAlive():
try:
time.sleep(THREAD_STOP_CHECK_INTERVAL)
except KeyboardInterrupt:
# Capture a keyboard interrupt when running from a console
break
except:
if self._monitor.isAlive():
log.error(traceback.format_exc())
continue
return self.stop()
def stop(self, stoplogging = False):
log.info('Stopping %s' % SERVER_SOFTWARE)
self.startstop_lock.acquire()
try:
# Stop listeners
for l in self.listeners:
l.ready = False
# Encourage a context switch
time.sleep(0.01)
for l in self.listeners:
if l.isAlive():
l.join()
# Stop Monitor
self._monitor.stop()
if self._monitor.isAlive():
self._monitor.join()
# Stop Worker threads
self._threadpool.stop()
if stoplogging:
logging.shutdown()
msg = "Calling logging.shutdown() is now the responsibility of \
the application developer. Please update your \
applications to no longer call rocket.stop(True)"
try:
import warnings
raise warnings.DeprecationWarning(msg)
except ImportError:
raise RuntimeError(msg)
finally:
self.startstop_lock.release()
def restart(self):
self.stop()
self.start()
def CherryPyWSGIServer(bind_addr,
wsgi_app,
numthreads = 10,
server_name = None,
max = -1,
|
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class Monitor(Thread):
# Monitor worker class.
def __init__(self,
monitor_queue,
active_queue,
timeout,
*args,
**kwargs):
Thread.__init__(self, *args, **kwargs)
# Instance Variables
self.monitor_queue = monitor_queue
self.active_queue = active_queue
self.timeout = timeout
self.connections = set()
self.active = False
def run(self):
self.name = self.getName()
self.log = logging.getLogger('Rocket.Monitor')
self.log.addHandler(NullHandler())
self.active = True
conn_list = list()
list_changed = False
if __debug__:
self.log.debug('Entering monitor loop.')
# Enter thread main loop
while self.active:
# Move the queued connections to the selection pool
while not self.monitor_queue.empty() or not len(self.connections):
if __debug__:
self.log.debug('In "receive timed-out connections" loop.')
c = self.monitor_queue.get()
if c is None:
# A non-client is a signal to die
if __debug__:
self.log.debug('Received a death threat.')
return
self.log.debug('Received a timed out connection.')
if __debug__:
assert(c not in self.connections)
if IS_JYTHON:
# Jython requires a socket to be in Non-blocking mode in
# order to select on it.
c.setblocking(False)
if __debug__:
self.log.debug('Adding connection to monitor list.')
self.connections.add(c)
list_changed = True
# Wait on those connections
self.log.debug('Blocking on connections')
if list_changed:
conn_list = list(self.connections)
list_changed = False
try:
readable = select.select(conn_list,
[],
[],
THREAD_STOP_CHECK_INTERVAL)[0]
except:
if self.active:
raise
else:
break
# If we have any readable connections, put them back
for r in readable:
if __debug__:
self.log.debug('Restoring readable connection')
if IS_JYTHON:
# Jython requires a socket to be in Non-blocking mode in
# order to select on it, but the rest of the code requires
# that it be in blocking mode.
r.setblocking(True)
r.start_time = time.time()
self.active_queue.put(r)
self.connections.remove(r)
list_changed = True
# If we have any stale connections, kill them off.
if self.timeout:
now = time.time()
stale = set()
for c in self.connections:
if (now - c.start_time) >= self.timeout:
stale.add(c)
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|
class Monitor(Thread):
# Monitor worker class.
def __init__(self,
monitor_queue,
active_queue,
timeout,
threadpool,
*args,
**kwargs):
Thread.__init__(self, *args, **kwargs)
self._threadpool = threadpool
# Instance Variables
self.monitor_queue = monitor_queue
self.active_queue = active_queue
self.timeout = timeout
self.log = logging.getLogger('Rocket.Monitor')
self.log.addHandler(NullHandler())
self.connections = set()
self.active = False
def run(self):
self.active = True
conn_list = list()
list_changed = False
# We need to make sure the queue is empty before we start
while not self.monitor_queue.empty():
self.monitor_queue.get()
if __debug__:
self.log.debug('Entering monitor loop.')
# Enter thread main loop
while self.active:
# Move the queued connections to the selection pool
while not self.monitor_queue.empty():
if __debug__:
self.log.debug('In "receive timed-out connections" loop.')
c = self.monitor_queue.get()
if c is None:
# A non-client is a signal to die
if __debug__:
self.log.debug('Received a death threat.')
self.stop()
break
self.log.debug('Received a timed out connection.')
if __debug__:
assert(c not in self.connections)
if IS_JYTHON:
# Jython requires a socket to be in Non-blocking mode in
# order to select on it.
c.setblocking(False)
if __debug__:
self.log.debug('Adding connection to monitor list.')
self.connections.add(c)
list_changed = True
# Wait on those connections
if list_changed:
conn_list = list(self.connections)
list_changed = False
try:
if len(conn_list):
readable = select.select(conn_list,
[],
[],
THREAD_STOP_CHECK_INTERVAL)[0]
else:
time.sleep(THREAD_STOP_CHECK_INTERVAL)
readable = []
if not self.active:
break
# If we have any readable connections, put them back
for r in readable:
if __debug__:
self.log.debug('Restoring readable connection')
if IS_JYTHON:
# Jython requires a socket to be in Non-blocking mode in
# order to select on it, but the rest of the code requires
# that it be in blocking mode.
r.setblocking(True)
r.start_time = time.time()
self.active_queue.put(r)
self.connections.remove(r)
list_changed = True
except:
if self.active:
raise
else:
break
# If we have any stale connections, kill them off.
if self.timeout:
now = time.time()
stale = set()
for c in self.connections:
if (now - c.start_time) >= self.timeout:
stale.add(c)
|
︙ | | | ︙ | |
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|
self.connections.remove(c)
list_changed = True
try:
c.close()
finally:
del c
def stop(self):
self.active = False
if __debug__:
self.log.debug('Flushing waiting connections')
for c in self.connections:
try:
c.close()
finally:
del c
if __debug__:
self.log.debug('Flushing queued connections')
|
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|
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self.connections.remove(c)
list_changed = True
try:
c.close()
finally:
del c
# Dynamically resize the threadpool to adapt to our changing needs.
self._threadpool.dynamic_resize()
def stop(self):
self.active = False
if __debug__:
self.log.debug('Flushing waiting connections')
while self.connections:
c = self.connections.pop()
try:
c.close()
finally:
del c
if __debug__:
self.log.debug('Flushing queued connections')
|
︙ | | | ︙ | |
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|
# Monolithic build...end of module: rocket\monitor.py
# Monolithic build...start of module: rocket\threadpool.py
# Import System Modules
import logging
# Import Package Modules
# package imports removed in monolithic build
# Setup Logging
log = logging.getLogger('Rocket.Errors.ThreadPool')
log.addHandler(NullHandler())
class ThreadPool:
"""The ThreadPool class is a container class for all the worker threads. It
|
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# Monolithic build...end of module: rocket\monitor.py
# Monolithic build...start of module: rocket\threadpool.py
# Import System Modules
import logging
# Import Package Modules
# package imports removed in monolithic build
# Setup Logging
log = logging.getLogger('Rocket.Errors.ThreadPool')
log.addHandler(NullHandler())
class ThreadPool:
"""The ThreadPool class is a container class for all the worker threads. It
|
︙ | | | ︙ | |
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|
self.active_queue = active_queue
self.worker_class = method
self.min_threads = min_threads
self.max_threads = max_threads
self.monitor_queue = monitor_queue
self.stop_server = False
# TODO - Optimize this based on some real-world usage data
self.grow_threshold = int(max_threads/10) + 2
if not isinstance(app_info, dict):
app_info = dict()
app_info.update(max_threads=max_threads,
min_threads=min_threads)
self.app_info = app_info
self.threads = set()
for x in range(min_threads):
worker = self.worker_class(app_info,
self.active_queue,
self.monitor_queue)
self.threads.add(worker)
def start(self):
self.stop_server = False
if __debug__:
log.debug("Starting threads.")
for thread in self.threads:
thread.setDaemon(True)
thread.start()
def stop(self):
if __debug__:
log.debug("Stopping threads.")
self.stop_server = True
# Prompt the threads to die
for t in self.threads:
self.active_queue.put(None)
# Give them the gun
for t in self.threads:
t.kill()
# Wait until they pull the trigger
for t in self.threads:
t.join()
# Clean up the mess
self.bring_out_your_dead()
def bring_out_your_dead(self):
# Remove dead threads from the pool
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self.active_queue = active_queue
self.worker_class = method
self.min_threads = min_threads
self.max_threads = max_threads
self.monitor_queue = monitor_queue
self.stop_server = False
self.alive = False
# TODO - Optimize this based on some real-world usage data
self.grow_threshold = int(max_threads/10) + 2
if not isinstance(app_info, dict):
app_info = dict()
if has_futures and app_info.get('futures'):
app_info['executor'] = WSGIExecutor(max([DEFAULTS['MIN_THREADS'],
2]))
app_info.update(max_threads=max_threads,
min_threads=min_threads)
self.min_threads = min_threads
self.app_info = app_info
self.threads = set()
def start(self):
self.stop_server = False
if __debug__:
log.debug("Starting threads.")
self.grow(self.min_threads)
self.alive = True
def stop(self):
self.alive = False
if __debug__:
log.debug("Stopping threads.")
self.stop_server = True
# Prompt the threads to die
self.shrink(len(self.threads))
# Stop futures initially
if has_futures and self.app_info.get('futures'):
if __debug__:
log.debug("Future executor is present. Python will not "
"exit until all jobs have finished.")
self.app_info['executor'].shutdown(wait=False)
# Give them the gun
#active_threads = [t for t in self.threads if t.isAlive()]
#while active_threads:
# t = active_threads.pop()
# t.kill()
# Wait until they pull the trigger
for t in self.threads:
if t.isAlive():
t.join()
# Clean up the mess
self.bring_out_your_dead()
def bring_out_your_dead(self):
# Remove dead threads from the pool
|
︙ | | | ︙ | |
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def grow(self, amount=None):
if self.stop_server:
return
if not amount:
amount = self.max_threads
amount = min([amount, self.max_threads - len(self.threads)])
if __debug__:
log.debug("Growing by %i." % amount)
for x in range(amount):
worker = self.worker_class(self.app_info,
self.active_queue,
|
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def grow(self, amount=None):
if self.stop_server:
return
if not amount:
amount = self.max_threads
if self.alive:
amount = min([amount, self.max_threads - len(self.threads)])
if __debug__:
log.debug("Growing by %i." % amount)
for x in range(amount):
worker = self.worker_class(self.app_info,
self.active_queue,
|
︙ | | | ︙ | |
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# Import System Modules
import re
import sys
import socket
import logging
import traceback
#from wsgiref.headers import Headers
from threading import Thread
from datetime import datetime
try:
from urllib import unquote
except ImportError:
from urllib.parse import unquote
|
|
|
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# Import System Modules
import re
import sys
import socket
import logging
import traceback
from wsgiref.headers import Headers
from threading import Thread
from datetime import datetime
try:
from urllib import unquote
except ImportError:
from urllib.parse import unquote
|
︙ | | | ︙ | |
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|
Content-Type: %s
%s
'''
if IS_JYTHON:
HTTP_METHODS = set(['OPTIONS', 'GET', 'HEAD', 'POST', 'PUT', 'DELETE', 'TRACE', 'CONNECT'])
###
# The Headers and FileWrapper classes are ripped straight from the Python
# Standard Library. I've removed some docstrings and integrated my BUF_SIZE.
# See the Python License here: http://docs.python.org/license.html
###
# Regular expression that matches `special' characters in parameters, the
# existance of which force quoting of the parameter value.
import re
_tspecials = re.compile(r'[ \(\)<>@,;:\\"/\[\]\?=]')
def _formatparam(param, value=None, quote=1):
"""Convenience function to format and return a key=value pair.
This will quote the value if needed or if quote is true.
"""
if value is not None and len(value) > 0:
if quote or _tspecials.search(value):
value = value.replace('\\', '\\\\').replace('"', r'\"')
return '%s="%s"' % (param, value)
else:
return '%s=%s' % (param, value)
else:
return param
class Headers:
def __init__(self,headers):
if type(headers) is not type([]):
raise TypeError("Headers must be a list of name/value tuples")
self._headers = headers
def __len__(self):
return len(self._headers)
def __setitem__(self, name, val):
del self[name]
self._headers.append((name, val))
def __delitem__(self,name):
name = name.lower()
self._headers[:] = [kv for kv in self._headers if kv[0].lower() != name]
def __getitem__(self,name):
return self.get(name)
def has_key(self, name):
return self.get(name) is not None
__contains__ = has_key
def get_all(self, name):
name = name.lower()
return [kv[1] for kv in self._headers if kv[0].lower()==name]
def get(self,name,default=None):
name = name.lower()
for k,v in self._headers:
if k.lower()==name:
return v
return default
def keys(self):
return [k for k, v in self._headers]
def values(self):
return [v for k, v in self._headers]
def items(self):
return self._headers[:]
def __repr__(self):
return "Headers(%r)" % self._headers
def __str__(self):
return '\r\n'.join(["%s: %s" % kv for kv in self._headers]+['',''])
def setdefault(self,name,value):
result = self.get(name)
if result is None:
self._headers.append((name,value))
return value
else:
return result
def add_header(self, _name, _value, **_params):
parts = []
if _value is not None:
parts.append(_value)
for k, v in _params.items():
if v is None:
parts.append(k.replace('_', '-'))
else:
parts.append(_formatparam(k.replace('_', '-'), v))
self._headers.append((_name, "; ".join(parts)))
class FileWrapper:
"""Wrapper to convert file-like objects to iterables"""
def __init__(self, filelike, blksize=BUF_SIZE):
self.filelike = filelike
self.blksize = blksize
if hasattr(filelike,'close'):
self.close = filelike.close
def __getitem__(self,key):
data = self.filelike.read(self.blksize)
if data:
return data
raise IndexError
def __iter__(self):
return self
def next(self):
data = self.filelike.read(self.blksize)
if data:
return data
raise StopIteration
class Worker(Thread):
"""The Worker class is a base class responsible for receiving connections
and (a subclass) will run an application to process the the connection """
def __init__(self,
app_info,
active_queue,
|
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Content-Type: %s
%s
'''
if IS_JYTHON:
HTTP_METHODS = set(['OPTIONS', 'GET', 'HEAD', 'POST', 'PUT', 'DELETE', 'TRACE', 'CONNECT'])
class Worker(Thread):
"""The Worker class is a base class responsible for receiving connections
and (a subclass) will run an application to process the the connection """
def __init__(self,
app_info,
active_queue,
|
︙ | | | ︙ | |
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self.app_info = app_info
self.active_queue = active_queue
self.monitor_queue = monitor_queue
self.size = 0
self.status = "200 OK"
self.closeConnection = True
# Request Log
self.req_log = logging.getLogger('Rocket.Requests')
self.req_log.addHandler(NullHandler())
# Error Log
self.err_log = logging.getLogger('Rocket.Errors.'+self.getName())
|
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self.app_info = app_info
self.active_queue = active_queue
self.monitor_queue = monitor_queue
self.size = 0
self.status = "200 OK"
self.closeConnection = True
self.request_line = ""
# Request Log
self.req_log = logging.getLogger('Rocket.Requests')
self.req_log.addHandler(NullHandler())
# Error Log
self.err_log = logging.getLogger('Rocket.Errors.'+self.getName())
|
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try:
self.conn.sendall(b(msg))
except socket.error:
self.closeConnection = True
self.err_log.error('Tried to send "%s" to client but received socket'
' error' % status)
def kill(self):
if self.isAlive() and hasattr(self, 'conn'):
try:
self.conn.shutdown(socket.SHUT_RDWR)
except socket.error:
info = sys.exc_info()
if info[1].args[0] != socket.EBADF:
self.err_log.debug('Error on shutdown: '+str(info))
def read_request_line(self, sock_file):
self.request_line = ''
try:
# Grab the request line
d = sock_file.readline()
if PY3K:
|
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try:
self.conn.sendall(b(msg))
except socket.error:
self.closeConnection = True
self.err_log.error('Tried to send "%s" to client but received socket'
' error' % status)
#def kill(self):
# if self.isAlive() and hasattr(self, 'conn'):
# try:
# self.conn.shutdown(socket.SHUT_RDWR)
# except socket.error:
# info = sys.exc_info()
# if info[1].args[0] != socket.EBADF:
# self.err_log.debug('Error on shutdown: '+str(info))
def read_request_line(self, sock_file):
self.request_line = ''
try:
# Grab the request line
d = sock_file.readline()
if PY3K:
|
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query_string=query_string,
scheme=scheme.lower(),
host=host)
return req
def read_headers(self, sock_file):
headers = dict()
l = sock_file.readline()
lname = None
lval = None
while True:
if PY3K:
try:
l = str(l, 'ISO-8859-1')
except UnicodeDecodeError:
self.err_log.warning('Client sent invalid header: ' + repr(l))
if l == '\r\n':
break
if l[0] in ' \t' and lname:
# Some headers take more than one line
lval += ',' + l.strip()
else:
# HTTP header values are latin-1 encoded
l = l.split(':', 1)
# HTTP header names are us-ascii encoded
lname = l[0].strip().upper().replace('-', '_')
lval = l[-1].strip()
headers[str(lname)] = str(lval)
l = sock_file.readline()
return headers
class SocketTimeout(Exception):
"Exception for when a socket times out between requests."
pass
class BadRequest(Exception):
|
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query_string=query_string,
scheme=scheme.lower(),
host=host)
return req
def read_headers(self, sock_file):
try:
headers = dict()
l = sock_file.readline()
lname = None
lval = None
while True:
if PY3K:
try:
l = str(l, 'ISO-8859-1')
except UnicodeDecodeError:
self.err_log.warning('Client sent invalid header: ' + repr(l))
if l == '\r\n':
break
if l[0] in ' \t' and lname:
# Some headers take more than one line
lval += ',' + l.strip()
else:
# HTTP header values are latin-1 encoded
l = l.split(':', 1)
# HTTP header names are us-ascii encoded
lname = l[0].strip().upper().replace('-', '_')
lval = l[-1].strip()
headers[str(lname)] = str(lval)
l = sock_file.readline()
except socket.timeout:
raise SocketTimeout("Socket timed out before request.")
return headers
class SocketTimeout(Exception):
"Exception for when a socket times out between requests."
pass
class BadRequest(Exception):
|
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return data
def readlines(self):
yield self.readline()
def get_method(method):
methods = dict(wsgi=WSGIWorker)
return methods[method.lower()]
# Monolithic build...end of module: rocket\worker.py
# Monolithic build...start of module: rocket\methods\__init__.py
# Monolithic build...end of module: rocket\methods\__init__.py
# Monolithic build...start of module: rocket\methods\wsgi.py
# Import System Modules
import sys
import socket
#from wsgiref.headers import Headers
#from wsgiref.util import FileWrapper
# Import Package Modules
# package imports removed in monolithic build
if PY3K:
from email.utils import formatdate
else:
# Caps Utils for Py2.4 compatibility
from email.Utils import formatdate
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return data
def readlines(self):
yield self.readline()
def get_method(method):
methods = dict(wsgi=WSGIWorker,
fs=FileSystemWorker)
return methods[method.lower()]
# Monolithic build...end of module: rocket\worker.py
# Monolithic build...start of module: rocket\methods\__init__.py
# Monolithic build...end of module: rocket\methods\__init__.py
# Monolithic build...start of module: rocket\methods\fs.py
# Import System Modules
import os
import time
import mimetypes
from email.utils import formatdate
from wsgiref.headers import Headers
from wsgiref.util import FileWrapper
# Import Package Modules
# package imports removed in monolithic build
# Define Constants
CHUNK_SIZE = 2**16 # 64 Kilobyte chunks
HEADER_RESPONSE = '''HTTP/1.1 %s\r\n%s'''
INDEX_HEADER = '''\
<html>
<head><title>Directory Index: %(path)s</title>
<style> .parent { margin-bottom: 1em; }</style>
</head>
<body><h1>Directory Index: %(path)s</h1>
<table>
<tr><th>Directories</th></tr>
'''
INDEX_ROW = '''<tr><td><div class="%(cls)s"><a href="/%(link)s">%(name)s</a></div></td></tr>'''
INDEX_FOOTER = '''</table></body></html>\r\n'''
class LimitingFileWrapper(FileWrapper):
def __init__(self, limit=None, *args, **kwargs):
self.limit = limit
FileWrapper.__init__(self, *args, **kwargs)
def read(self, amt):
if amt > self.limit:
amt = self.limit
self.limit -= amt
return FileWrapper.read(self, amt)
class FileSystemWorker(Worker):
def __init__(self, *args, **kwargs):
"""Builds some instance variables that will last the life of the
thread."""
Worker.__init__(self, *args, **kwargs)
self.root = os.path.abspath(self.app_info['document_root'])
self.display_index = self.app_info['display_index']
def serve_file(self, filepath, headers):
filestat = os.stat(filepath)
self.size = filestat.st_size
modtime = time.strftime("%a, %d %b %Y %H:%M:%S GMT",
time.gmtime(filestat.st_mtime))
self.headers.add_header('Last-Modified', modtime)
if headers.get('if_modified_since') == modtime:
# The browser cache is up-to-date, send a 304.
self.status = "304 Not Modified"
self.data = []
return
ct = mimetypes.guess_type(filepath)[0]
self.content_type = ct if ct else 'text/plain'
try:
f = open(filepath, 'rb')
self.headers['Pragma'] = 'cache'
self.headers['Cache-Control'] = 'private'
self.headers['Content-Length'] = str(self.size)
if self.etag:
self.headers.add_header('Etag', self.etag)
if self.expires:
self.headers.add_header('Expires', self.expires)
try:
# Implement 206 partial file support.
start, end = headers['range'].split('-')
start = 0 if not start.isdigit() else int(start)
end = self.size if not end.isdigit() else int(end)
if self.size < end or start < 0:
self.status = "214 Unsatisfiable Range Requested"
self.data = FileWrapper(f, CHUNK_SIZE)
else:
f.seek(start)
self.data = LimitingFileWrapper(f, CHUNK_SIZE, limit=end)
self.status = "206 Partial Content"
except:
self.data = FileWrapper(f, CHUNK_SIZE)
except IOError:
self.status = "403 Forbidden"
def serve_dir(self, pth, rpth):
def rel_path(path):
return os.path.normpath(path[len(self.root):] if path.startswith(self.root) else path)
if not self.display_index:
self.status = '404 File Not Found'
return b('')
else:
self.content_type = 'text/html'
dir_contents = [os.path.join(pth, x) for x in os.listdir(os.path.normpath(pth))]
dir_contents.sort()
dirs = [rel_path(x)+'/' for x in dir_contents if os.path.isdir(x)]
files = [rel_path(x) for x in dir_contents if os.path.isfile(x)]
self.data = [INDEX_HEADER % dict(path='/'+rpth)]
if rpth:
self.data += [INDEX_ROW % dict(name='(parent directory)', cls='dir parent', link='/'.join(rpth[:-1].split('/')[:-1]))]
self.data += [INDEX_ROW % dict(name=os.path.basename(x[:-1]), link=os.path.join(rpth, os.path.basename(x[:-1])).replace('\\', '/'), cls='dir') for x in dirs]
self.data += ['<tr><th>Files</th></tr>']
self.data += [INDEX_ROW % dict(name=os.path.basename(x), link=os.path.join(rpth, os.path.basename(x)).replace('\\', '/'), cls='file') for x in files]
self.data += [INDEX_FOOTER]
self.headers['Content-Length'] = self.size = str(sum([len(x) for x in self.data]))
self.status = '200 OK'
def run_app(self, conn):
self.status = "200 OK"
self.size = 0
self.expires = None
self.etag = None
self.content_type = 'text/plain'
self.content_length = None
if __debug__:
self.err_log.debug('Getting sock_file')
# Build our file-like object
sock_file = conn.makefile('rb',BUF_SIZE)
request = self.read_request_line(sock_file)
if request['method'].upper() not in ('GET', ):
self.status = "501 Not Implemented"
try:
# Get our file path
headers = dict([(str(k.lower()), v) for k, v in self.read_headers(sock_file).items()])
rpath = request.get('path', '').lstrip('/')
filepath = os.path.join(self.root, rpath)
filepath = os.path.abspath(filepath)
if __debug__:
self.err_log.debug('Request for path: %s' % filepath)
self.closeConnection = headers.get('connection', 'close').lower() == 'close'
self.headers = Headers([('Date', formatdate(usegmt=True)),
('Server', HTTP_SERVER_SOFTWARE),
('Connection', headers.get('connection', 'close')),
])
if not filepath.lower().startswith(self.root.lower()):
# File must be within our root directory
self.status = "400 Bad Request"
self.closeConnection = True
elif not os.path.exists(filepath):
self.status = "404 File Not Found"
self.closeConnection = True
elif os.path.isdir(filepath):
self.serve_dir(filepath, rpath)
elif os.path.isfile(filepath):
self.serve_file(filepath, headers)
else:
# It exists but it's not a file or a directory????
# What is it then?
self.status = "501 Not Implemented"
self.closeConnection = True
h = self.headers
statcode, statstr = self.status.split(' ', 1)
statcode = int(statcode)
if statcode >= 400:
h.add_header('Content-Type', self.content_type)
self.data = [statstr]
# Build our output headers
header_data = HEADER_RESPONSE % (self.status, str(h))
# Send the headers
if __debug__:
self.err_log.debug('Sending Headers: %s' % repr(header_data))
self.conn.sendall(b(header_data))
for data in self.data:
self.conn.sendall(b(data))
if hasattr(self.data, 'close'):
self.data.close()
finally:
if __debug__:
self.err_log.debug('Finally closing sock_file')
sock_file.close()
# Monolithic build...end of module: rocket\methods\fs.py
# Monolithic build...start of module: rocket\methods\wsgi.py
# Import System Modules
import sys
import socket
from wsgiref.headers import Headers
from wsgiref.util import FileWrapper
# Import Package Modules
# package imports removed in monolithic build
if PY3K:
from email.utils import formatdate
else:
# Caps Utils for Py2.4 compatibility
from email.Utils import formatdate
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multithreaded = self.app_info.get('max_threads') != 1
else:
multithreaded = False
self.base_environ = dict({'SERVER_SOFTWARE': self.app_info['server_software'],
'wsgi.multithread': multithreaded,
})
self.base_environ.update(BASE_ENV)
# Grab our application
self.app = self.app_info.get('wsgi_app')
if not hasattr(self.app, "__call__"):
raise TypeError("The wsgi_app specified (%s) is not a valid WSGI application." % repr(self.app))
def build_environ(self, sock_file, conn):
""" Build the execution environment. """
# Grab the request line
request = self.read_request_line(sock_file)
# Copy the Base Environment
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multithreaded = self.app_info.get('max_threads') != 1
else:
multithreaded = False
self.base_environ = dict({'SERVER_SOFTWARE': self.app_info['server_software'],
'wsgi.multithread': multithreaded,
})
self.base_environ.update(BASE_ENV)
# Grab our application
self.app = self.app_info.get('wsgi_app')
if not hasattr(self.app, "__call__"):
raise TypeError("The wsgi_app specified (%s) is not a valid WSGI application." % repr(self.app))
# Enable futures
if has_futures and self.app_info.get('futures'):
executor = self.app_info['executor']
self.base_environ.update({"wsgiorg.executor": executor,
"wsgiorg.futures": executor.futures})
def build_environ(self, sock_file, conn):
""" Build the execution environment. """
# Grab the request line
request = self.read_request_line(sock_file)
# Copy the Base Environment
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# Add Dynamic WSGI Variables
if conn.ssl:
environ['wsgi.url_scheme'] = 'https'
environ['HTTPS'] = 'on'
else:
environ['wsgi.url_scheme'] = 'http'
if environ.get('HTTP_TRANSFER_ENCODING', '') == 'chunked':
environ['wsgi.input'] = ChunkedReader(sock_file)
else:
environ['wsgi.input'] = sock_file
return environ
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# Add Dynamic WSGI Variables
if conn.ssl:
environ['wsgi.url_scheme'] = 'https'
environ['HTTPS'] = 'on'
else:
environ['wsgi.url_scheme'] = 'http'
if conn.ssl:
try:
peercert = conn.socket.getpeercert(binary_form=True)
environ['SSL_CLIENT_RAW_CERT'] = \
peercert and ssl.DER_cert_to_PEM_cert(peercert)
except Exception,e:
print e
if environ.get('HTTP_TRANSFER_ENCODING', '') == 'chunked':
environ['wsgi.input'] = ChunkedReader(sock_file)
else:
environ['wsgi.input'] = sock_file
return environ
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sections = None
output = None
if __debug__:
self.err_log.debug('Getting sock_file')
# Build our file-like object
sock_file = conn.makefile('rb',BUF_SIZE)
try:
# Read the headers and build our WSGI environment
self.environ = environ = self.build_environ(sock_file, conn)
# Handle 100 Continue
if environ.get('HTTP_EXPECT', '') == '100-continue':
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sections = None
output = None
if __debug__:
self.err_log.debug('Getting sock_file')
# Build our file-like object
if PY3K:
sock_file = conn.makefile(mode='rb', buffering=BUF_SIZE)
else:
sock_file = conn.makefile(BUF_SIZE)
try:
# Read the headers and build our WSGI environment
self.environ = environ = self.build_environ(sock_file, conn)
# Handle 100 Continue
if environ.get('HTTP_EXPECT', '') == '100-continue':
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if static_folder:
if not static_folder.startswith('/'):
static_folder = os.path.join(os.getcwd(),static_folder)
path = os.path.join(static_folder, environ['PATH_INFO'][1:] or 'index.html')
type = types.get(path.split('.')[-1],'text')
if os.path.exists(path):
try:
pathfile = open(path,'rb')
try:
data = pathfile.read()
finally:
pathfile.close()
start_response('200 OK', [('Content-Type', type)])
except IOError:
start_response('404 NOT FOUND', [])
data = '404 NOT FOUND'
else:
start_response('500 INTERNAL SERVER ERROR', [])
data = '500 INTERNAL SERVER ERROR'
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if static_folder:
if not static_folder.startswith('/'):
static_folder = os.path.join(os.getcwd(),static_folder)
path = os.path.join(static_folder, environ['PATH_INFO'][1:] or 'index.html')
type = types.get(path.split('.')[-1],'text')
if os.path.exists(path):
try:
data = open(path,'rb').read()
start_response('200 OK', [('Content-Type', type)])
except IOError:
start_response('404 NOT FOUND', [])
data = '404 NOT FOUND'
else:
start_response('500 INTERNAL SERVER ERROR', [])
data = '500 INTERNAL SERVER ERROR'
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