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sam
205
libs/cherrypy/_cpserver.py
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205
libs/cherrypy/_cpserver.py
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"""Manage HTTP servers with CherryPy."""
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import warnings
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import cherrypy
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from cherrypy.lib import attributes
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from cherrypy._cpcompat import basestring, py3k
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# We import * because we want to export check_port
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# et al as attributes of this module.
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from cherrypy.process.servers import *
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class Server(ServerAdapter):
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"""An adapter for an HTTP server.
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You can set attributes (like socket_host and socket_port)
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on *this* object (which is probably cherrypy.server), and call
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quickstart. For example::
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cherrypy.server.socket_port = 80
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cherrypy.quickstart()
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"""
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socket_port = 8080
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"""The TCP port on which to listen for connections."""
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_socket_host = '127.0.0.1'
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def _get_socket_host(self):
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return self._socket_host
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def _set_socket_host(self, value):
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if value == '':
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raise ValueError("The empty string ('') is not an allowed value. "
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"Use '0.0.0.0' instead to listen on all active "
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"interfaces (INADDR_ANY).")
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self._socket_host = value
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socket_host = property(_get_socket_host, _set_socket_host,
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doc="""The hostname or IP address on which to listen for connections.
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Host values may be any IPv4 or IPv6 address, or any valid hostname.
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The string 'localhost' is a synonym for '127.0.0.1' (or '::1', if
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your hosts file prefers IPv6). The string '0.0.0.0' is a special
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IPv4 entry meaning "any active interface" (INADDR_ANY), and '::'
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is the similar IN6ADDR_ANY for IPv6. The empty string or None are
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not allowed.""")
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socket_file = None
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"""If given, the name of the UNIX socket to use instead of TCP/IP.
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When this option is not None, the `socket_host` and `socket_port` options
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are ignored."""
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socket_queue_size = 5
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"""The 'backlog' argument to socket.listen(); specifies the maximum number
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of queued connections (default 5)."""
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socket_timeout = 10
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"""The timeout in seconds for accepted connections (default 10)."""
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shutdown_timeout = 5
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"""The time to wait for HTTP worker threads to clean up."""
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protocol_version = 'HTTP/1.1'
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"""The version string to write in the Status-Line of all HTTP responses,
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for example, "HTTP/1.1" (the default). Depending on the HTTP server used,
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this should also limit the supported features used in the response."""
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thread_pool = 10
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"""The number of worker threads to start up in the pool."""
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thread_pool_max = -1
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"""The maximum size of the worker-thread pool. Use -1 to indicate no limit."""
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max_request_header_size = 500 * 1024
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"""The maximum number of bytes allowable in the request headers. If exceeded,
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the HTTP server should return "413 Request Entity Too Large"."""
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max_request_body_size = 100 * 1024 * 1024
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"""The maximum number of bytes allowable in the request body. If exceeded,
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the HTTP server should return "413 Request Entity Too Large"."""
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instance = None
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"""If not None, this should be an HTTP server instance (such as
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CPWSGIServer) which cherrypy.server will control. Use this when you need
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more control over object instantiation than is available in the various
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configuration options."""
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ssl_context = None
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"""When using PyOpenSSL, an instance of SSL.Context."""
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ssl_certificate = None
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"""The filename of the SSL certificate to use."""
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ssl_certificate_chain = None
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"""When using PyOpenSSL, the certificate chain to pass to
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Context.load_verify_locations."""
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ssl_private_key = None
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"""The filename of the private key to use with SSL."""
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if py3k:
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ssl_module = 'builtin'
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"""The name of a registered SSL adaptation module to use with the builtin
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WSGI server. Builtin options are: 'builtin' (to use the SSL library built
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into recent versions of Python). You may also register your
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own classes in the wsgiserver.ssl_adapters dict."""
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else:
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ssl_module = 'pyopenssl'
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"""The name of a registered SSL adaptation module to use with the builtin
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WSGI server. Builtin options are 'builtin' (to use the SSL library built
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into recent versions of Python) and 'pyopenssl' (to use the PyOpenSSL
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project, which you must install separately). You may also register your
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own classes in the wsgiserver.ssl_adapters dict."""
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statistics = False
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"""Turns statistics-gathering on or off for aware HTTP servers."""
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nodelay = True
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"""If True (the default since 3.1), sets the TCP_NODELAY socket option."""
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wsgi_version = (1, 0)
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"""The WSGI version tuple to use with the builtin WSGI server.
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The provided options are (1, 0) [which includes support for PEP 3333,
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which declares it covers WSGI version 1.0.1 but still mandates the
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wsgi.version (1, 0)] and ('u', 0), an experimental unicode version.
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You may create and register your own experimental versions of the WSGI
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protocol by adding custom classes to the wsgiserver.wsgi_gateways dict."""
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def __init__(self):
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self.bus = cherrypy.engine
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self.httpserver = None
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self.interrupt = None
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self.running = False
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def httpserver_from_self(self, httpserver=None):
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"""Return a (httpserver, bind_addr) pair based on self attributes."""
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if httpserver is None:
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httpserver = self.instance
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if httpserver is None:
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from cherrypy import _cpwsgi_server
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httpserver = _cpwsgi_server.CPWSGIServer(self)
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if isinstance(httpserver, basestring):
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# Is anyone using this? Can I add an arg?
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httpserver = attributes(httpserver)(self)
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return httpserver, self.bind_addr
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def start(self):
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"""Start the HTTP server."""
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if not self.httpserver:
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self.httpserver, self.bind_addr = self.httpserver_from_self()
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ServerAdapter.start(self)
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start.priority = 75
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def _get_bind_addr(self):
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if self.socket_file:
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return self.socket_file
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if self.socket_host is None and self.socket_port is None:
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return None
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return (self.socket_host, self.socket_port)
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def _set_bind_addr(self, value):
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if value is None:
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self.socket_file = None
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self.socket_host = None
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self.socket_port = None
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elif isinstance(value, basestring):
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self.socket_file = value
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self.socket_host = None
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self.socket_port = None
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else:
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try:
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self.socket_host, self.socket_port = value
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self.socket_file = None
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except ValueError:
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raise ValueError("bind_addr must be a (host, port) tuple "
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"(for TCP sockets) or a string (for Unix "
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"domain sockets), not %r" % value)
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bind_addr = property(_get_bind_addr, _set_bind_addr,
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doc='A (host, port) tuple for TCP sockets or a str for Unix domain sockets.')
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def base(self):
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"""Return the base (scheme://host[:port] or sock file) for this server."""
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if self.socket_file:
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return self.socket_file
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host = self.socket_host
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if host in ('0.0.0.0', '::'):
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# 0.0.0.0 is INADDR_ANY and :: is IN6ADDR_ANY.
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# Look up the host name, which should be the
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# safest thing to spit out in a URL.
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import socket
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host = socket.gethostname()
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port = self.socket_port
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if self.ssl_certificate:
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scheme = "https"
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if port != 443:
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host += ":%s" % port
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else:
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scheme = "http"
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if port != 80:
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host += ":%s" % port
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return "%s://%s" % (scheme, host)
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