815 lines
31 KiB
Python
815 lines
31 KiB
Python
import errno
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import os
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import sys
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import time
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import traceback
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import types
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import warnings
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from eventlet.green import BaseHTTPServer
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from eventlet.green import socket
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from eventlet.green import urllib
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from eventlet import greenio
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from eventlet import greenpool
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from eventlet import support
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from eventlet.support import six
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DEFAULT_MAX_SIMULTANEOUS_REQUESTS = 1024
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DEFAULT_MAX_HTTP_VERSION = 'HTTP/1.1'
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MAX_REQUEST_LINE = 8192
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MAX_HEADER_LINE = 8192
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MAX_TOTAL_HEADER_SIZE = 65536
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MINIMUM_CHUNK_SIZE = 4096
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# %(client_port)s is also available
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DEFAULT_LOG_FORMAT = ('%(client_ip)s - - [%(date_time)s] "%(request_line)s"'
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' %(status_code)s %(body_length)s %(wall_seconds).6f')
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__all__ = ['server', 'format_date_time']
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# Weekday and month names for HTTP date/time formatting; always English!
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_weekdayname = ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"]
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_monthname = [None, # Dummy so we can use 1-based month numbers
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"Jan", "Feb", "Mar", "Apr", "May", "Jun",
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"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"]
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def format_date_time(timestamp):
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"""Formats a unix timestamp into an HTTP standard string."""
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year, month, day, hh, mm, ss, wd, _y, _z = time.gmtime(timestamp)
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return "%s, %02d %3s %4d %02d:%02d:%02d GMT" % (
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_weekdayname[wd], day, _monthname[month], year, hh, mm, ss
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)
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# Collections of error codes to compare against. Not all attributes are set
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# on errno module on all platforms, so some are literals :(
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BAD_SOCK = set((errno.EBADF, 10053))
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BROKEN_SOCK = set((errno.EPIPE, errno.ECONNRESET))
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# special flag return value for apps
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class _AlreadyHandled(object):
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def __iter__(self):
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return self
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def next(self):
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raise StopIteration
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__next__ = next
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ALREADY_HANDLED = _AlreadyHandled()
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class Input(object):
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def __init__(self,
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rfile,
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content_length,
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wfile=None,
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wfile_line=None,
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chunked_input=False):
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self.rfile = rfile
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if content_length is not None:
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content_length = int(content_length)
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self.content_length = content_length
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self.wfile = wfile
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self.wfile_line = wfile_line
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self.position = 0
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self.chunked_input = chunked_input
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self.chunk_length = -1
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# (optional) headers to send with a "100 Continue" response. Set by
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# calling set_hundred_continue_respose_headers() on env['wsgi.input']
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self.hundred_continue_headers = None
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def _send_hundred_continue_response(self):
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towrite = []
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# 100 Continue status line
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towrite.append(self.wfile_line)
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# Optional headers
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if self.hundred_continue_headers is not None:
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# 100 Continue headers
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for header in self.hundred_continue_headers:
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towrite.append('%s: %s\r\n' % header)
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# Blank line
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towrite.append('\r\n')
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self.wfile.writelines(towrite)
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self.wfile = None
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self.wfile_line = None
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def _do_read(self, reader, length=None):
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if self.wfile is not None:
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# 100 Continue response
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self._send_hundred_continue_response()
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if length is None and self.content_length is not None:
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length = self.content_length - self.position
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if length and length > self.content_length - self.position:
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length = self.content_length - self.position
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if not length:
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return ''
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try:
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read = reader(length)
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except greenio.SSL.ZeroReturnError:
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read = ''
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self.position += len(read)
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return read
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def _chunked_read(self, rfile, length=None, use_readline=False):
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if self.wfile is not None:
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# 100 Continue response
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self._send_hundred_continue_response()
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try:
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if length == 0:
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return ""
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if length < 0:
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length = None
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if use_readline:
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reader = self.rfile.readline
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else:
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reader = self.rfile.read
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response = []
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while self.chunk_length != 0:
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maxreadlen = self.chunk_length - self.position
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if length is not None and length < maxreadlen:
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maxreadlen = length
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if maxreadlen > 0:
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data = reader(maxreadlen)
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if not data:
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self.chunk_length = 0
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raise IOError("unexpected end of file while parsing chunked data")
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datalen = len(data)
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response.append(data)
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self.position += datalen
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if self.chunk_length == self.position:
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rfile.readline()
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if length is not None:
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length -= datalen
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if length == 0:
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break
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if use_readline and data[-1] == "\n":
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break
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else:
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self.chunk_length = int(rfile.readline().split(b";", 1)[0], 16)
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self.position = 0
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if self.chunk_length == 0:
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rfile.readline()
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except greenio.SSL.ZeroReturnError:
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pass
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return b''.join(response)
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def read(self, length=None):
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if self.chunked_input:
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return self._chunked_read(self.rfile, length)
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return self._do_read(self.rfile.read, length)
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def readline(self, size=None):
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if self.chunked_input:
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return self._chunked_read(self.rfile, size, True)
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else:
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return self._do_read(self.rfile.readline, size)
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def readlines(self, hint=None):
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return self._do_read(self.rfile.readlines, hint)
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def __iter__(self):
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return iter(self.read, '')
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def get_socket(self):
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return self.rfile._sock
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def set_hundred_continue_response_headers(self, headers,
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capitalize_response_headers=True):
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# Response headers capitalization (default)
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# CONTent-TYpe: TExt/PlaiN -> Content-Type: TExt/PlaiN
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# Per HTTP RFC standard, header name is case-insensitive.
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# Please, fix your client to ignore header case if possible.
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if capitalize_response_headers:
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headers = [
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('-'.join([x.capitalize() for x in key.split('-')]), value)
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for key, value in headers]
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self.hundred_continue_headers = headers
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class HeaderLineTooLong(Exception):
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pass
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class HeadersTooLarge(Exception):
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pass
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class FileObjectForHeaders(object):
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def __init__(self, fp):
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self.fp = fp
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self.total_header_size = 0
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def readline(self, size=-1):
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sz = size
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if size < 0:
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sz = MAX_HEADER_LINE
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rv = self.fp.readline(sz)
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if size < 0 and len(rv) >= MAX_HEADER_LINE:
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raise HeaderLineTooLong()
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self.total_header_size += len(rv)
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if self.total_header_size > MAX_TOTAL_HEADER_SIZE:
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raise HeadersTooLarge()
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return rv
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class HttpProtocol(BaseHTTPServer.BaseHTTPRequestHandler):
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protocol_version = 'HTTP/1.1'
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minimum_chunk_size = MINIMUM_CHUNK_SIZE
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capitalize_response_headers = True
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def setup(self):
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# overriding SocketServer.setup to correctly handle SSL.Connection objects
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conn = self.connection = self.request
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try:
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self.rfile = conn.makefile('rb', self.rbufsize)
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self.wfile = conn.makefile('wb', self.wbufsize)
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except (AttributeError, NotImplementedError):
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if hasattr(conn, 'send') and hasattr(conn, 'recv'):
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# it's an SSL.Connection
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self.rfile = socket._fileobject(conn, "rb", self.rbufsize)
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self.wfile = socket._fileobject(conn, "wb", self.wbufsize)
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else:
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# it's a SSLObject, or a martian
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raise NotImplementedError("wsgi.py doesn't support sockets "
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"of type %s" % type(conn))
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def handle_one_request(self):
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if self.server.max_http_version:
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self.protocol_version = self.server.max_http_version
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if self.rfile.closed:
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self.close_connection = 1
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return
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try:
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self.raw_requestline = self.rfile.readline(self.server.url_length_limit)
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if len(self.raw_requestline) == self.server.url_length_limit:
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self.wfile.write(
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"HTTP/1.0 414 Request URI Too Long\r\n"
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"Connection: close\r\nContent-length: 0\r\n\r\n")
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self.close_connection = 1
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return
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except greenio.SSL.ZeroReturnError:
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self.raw_requestline = ''
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except socket.error as e:
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if support.get_errno(e) not in BAD_SOCK:
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raise
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self.raw_requestline = ''
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if not self.raw_requestline:
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self.close_connection = 1
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return
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orig_rfile = self.rfile
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try:
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self.rfile = FileObjectForHeaders(self.rfile)
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if not self.parse_request():
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return
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except HeaderLineTooLong:
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self.wfile.write(
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"HTTP/1.0 400 Header Line Too Long\r\n"
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"Connection: close\r\nContent-length: 0\r\n\r\n")
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self.close_connection = 1
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return
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except HeadersTooLarge:
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self.wfile.write(
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"HTTP/1.0 400 Headers Too Large\r\n"
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"Connection: close\r\nContent-length: 0\r\n\r\n")
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self.close_connection = 1
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return
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finally:
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self.rfile = orig_rfile
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content_length = self.headers.get('content-length')
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if content_length:
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try:
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int(content_length)
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except ValueError:
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self.wfile.write(
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"HTTP/1.0 400 Bad Request\r\n"
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"Connection: close\r\nContent-length: 0\r\n\r\n")
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self.close_connection = 1
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return
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self.environ = self.get_environ()
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self.application = self.server.app
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try:
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self.server.outstanding_requests += 1
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try:
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self.handle_one_response()
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except socket.error as e:
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# Broken pipe, connection reset by peer
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if support.get_errno(e) not in BROKEN_SOCK:
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raise
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finally:
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self.server.outstanding_requests -= 1
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def handle_one_response(self):
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start = time.time()
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headers_set = []
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headers_sent = []
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wfile = self.wfile
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result = None
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use_chunked = [False]
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length = [0]
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status_code = [200]
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def write(data, _writelines=wfile.writelines):
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towrite = []
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if not headers_set:
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raise AssertionError("write() before start_response()")
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elif not headers_sent:
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status, response_headers = headers_set
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headers_sent.append(1)
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header_list = [header[0].lower() for header in response_headers]
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towrite.append('%s %s\r\n' % (self.protocol_version, status))
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for header in response_headers:
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towrite.append('%s: %s\r\n' % header)
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# send Date header?
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if 'date' not in header_list:
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towrite.append('Date: %s\r\n' % (format_date_time(time.time()),))
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client_conn = self.headers.get('Connection', '').lower()
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send_keep_alive = False
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if self.close_connection == 0 and \
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self.server.keepalive and (client_conn == 'keep-alive' or
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(self.request_version == 'HTTP/1.1' and
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not client_conn == 'close')):
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# only send keep-alives back to clients that sent them,
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# it's redundant for 1.1 connections
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send_keep_alive = (client_conn == 'keep-alive')
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self.close_connection = 0
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else:
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self.close_connection = 1
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if 'content-length' not in header_list:
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if self.request_version == 'HTTP/1.1':
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use_chunked[0] = True
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towrite.append('Transfer-Encoding: chunked\r\n')
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elif 'content-length' not in header_list:
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# client is 1.0 and therefore must read to EOF
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self.close_connection = 1
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if self.close_connection:
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towrite.append('Connection: close\r\n')
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elif send_keep_alive:
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towrite.append('Connection: keep-alive\r\n')
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towrite.append('\r\n')
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# end of header writing
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if use_chunked[0]:
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# Write the chunked encoding
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towrite.append("%x\r\n%s\r\n" % (len(data), data))
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else:
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towrite.append(data)
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try:
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_writelines(towrite)
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length[0] = length[0] + sum(map(len, towrite))
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except UnicodeEncodeError:
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self.server.log_message(
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"Encountered non-ascii unicode while attempting to write"
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"wsgi response: %r" %
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[x for x in towrite if isinstance(x, six.text_type)])
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self.server.log_message(traceback.format_exc())
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_writelines(
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["HTTP/1.1 500 Internal Server Error\r\n",
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"Connection: close\r\n",
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"Content-type: text/plain\r\n",
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"Content-length: 98\r\n",
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"Date: %s\r\n" % format_date_time(time.time()),
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"\r\n",
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("Internal Server Error: wsgi application passed "
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"a unicode object to the server instead of a string.")])
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|
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def start_response(status, response_headers, exc_info=None):
|
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status_code[0] = status.split()[0]
|
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if exc_info:
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try:
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if headers_sent:
|
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# Re-raise original exception if headers sent
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six.reraise(exc_info[0], exc_info[1], exc_info[2])
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finally:
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# Avoid dangling circular ref
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exc_info = None
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|
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# Response headers capitalization
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# CONTent-TYpe: TExt/PlaiN -> Content-Type: TExt/PlaiN
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# Per HTTP RFC standard, header name is case-insensitive.
|
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# Please, fix your client to ignore header case if possible.
|
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if self.capitalize_response_headers:
|
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response_headers = [
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('-'.join([x.capitalize() for x in key.split('-')]), value)
|
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for key, value in response_headers]
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|
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headers_set[:] = [status, response_headers]
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return write
|
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|
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try:
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try:
|
|
result = self.application(self.environ, start_response)
|
|
if (isinstance(result, _AlreadyHandled)
|
|
or isinstance(getattr(result, '_obj', None), _AlreadyHandled)):
|
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self.close_connection = 1
|
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return
|
|
|
|
# Set content-length if possible
|
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if not headers_sent and hasattr(result, '__len__') and \
|
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'Content-Length' not in [h for h, _v in headers_set[1]]:
|
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headers_set[1].append(('Content-Length', str(sum(map(len, result)))))
|
|
|
|
towrite = []
|
|
towrite_size = 0
|
|
just_written_size = 0
|
|
minimum_write_chunk_size = int(self.environ.get(
|
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'eventlet.minimum_write_chunk_size', self.minimum_chunk_size))
|
|
for data in result:
|
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towrite.append(data)
|
|
towrite_size += len(data)
|
|
if towrite_size >= minimum_write_chunk_size:
|
|
write(''.join(towrite))
|
|
towrite = []
|
|
just_written_size = towrite_size
|
|
towrite_size = 0
|
|
if towrite:
|
|
just_written_size = towrite_size
|
|
write(''.join(towrite))
|
|
if not headers_sent or (use_chunked[0] and just_written_size):
|
|
write('')
|
|
except Exception:
|
|
self.close_connection = 1
|
|
tb = traceback.format_exc()
|
|
self.server.log_message(tb)
|
|
if not headers_set:
|
|
err_body = ""
|
|
if(self.server.debug):
|
|
err_body = tb
|
|
start_response("500 Internal Server Error",
|
|
[('Content-type', 'text/plain'),
|
|
('Content-length', len(err_body))])
|
|
write(err_body)
|
|
finally:
|
|
if hasattr(result, 'close'):
|
|
result.close()
|
|
if (self.environ['eventlet.input'].chunked_input or
|
|
self.environ['eventlet.input'].position
|
|
< self.environ['eventlet.input'].content_length):
|
|
# Read and discard body if there was no pending 100-continue
|
|
if not self.environ['eventlet.input'].wfile:
|
|
# NOTE: MINIMUM_CHUNK_SIZE is used here for purpose different than chunking.
|
|
# We use it only cause it's at hand and has reasonable value in terms of
|
|
# emptying the buffer.
|
|
while self.environ['eventlet.input'].read(MINIMUM_CHUNK_SIZE):
|
|
pass
|
|
finish = time.time()
|
|
|
|
for hook, args, kwargs in self.environ['eventlet.posthooks']:
|
|
hook(self.environ, *args, **kwargs)
|
|
|
|
if self.server.log_output:
|
|
self.server.log_message(self.server.log_format % {
|
|
'client_ip': self.get_client_ip(),
|
|
'client_port': self.client_address[1],
|
|
'date_time': self.log_date_time_string(),
|
|
'request_line': self.requestline,
|
|
'status_code': status_code[0],
|
|
'body_length': length[0],
|
|
'wall_seconds': finish - start,
|
|
})
|
|
|
|
def get_client_ip(self):
|
|
client_ip = self.client_address[0]
|
|
if self.server.log_x_forwarded_for:
|
|
forward = self.headers.get('X-Forwarded-For', '').replace(' ', '')
|
|
if forward:
|
|
client_ip = "%s,%s" % (forward, client_ip)
|
|
return client_ip
|
|
|
|
def get_environ(self):
|
|
env = self.server.get_environ()
|
|
env['REQUEST_METHOD'] = self.command
|
|
env['SCRIPT_NAME'] = ''
|
|
|
|
pq = self.path.split('?', 1)
|
|
env['RAW_PATH_INFO'] = pq[0]
|
|
env['PATH_INFO'] = urllib.unquote(pq[0])
|
|
if len(pq) > 1:
|
|
env['QUERY_STRING'] = pq[1]
|
|
|
|
ct = self.headers.get('content-type')
|
|
if ct is None:
|
|
try:
|
|
ct = self.headers.type
|
|
except AttributeError:
|
|
ct = self.headers.get_content_type()
|
|
env['CONTENT_TYPE'] = ct
|
|
|
|
length = self.headers.get('content-length')
|
|
if length:
|
|
env['CONTENT_LENGTH'] = length
|
|
env['SERVER_PROTOCOL'] = 'HTTP/1.0'
|
|
|
|
host, port = self.request.getsockname()[:2]
|
|
env['SERVER_NAME'] = host
|
|
env['SERVER_PORT'] = str(port)
|
|
env['REMOTE_ADDR'] = self.client_address[0]
|
|
env['REMOTE_PORT'] = str(self.client_address[1])
|
|
env['GATEWAY_INTERFACE'] = 'CGI/1.1'
|
|
|
|
try:
|
|
headers = self.headers.headers
|
|
except AttributeError:
|
|
headers = self.headers._headers
|
|
else:
|
|
headers = [h.split(':', 1) for h in headers]
|
|
|
|
for k, v in headers:
|
|
k = k.replace('-', '_').upper()
|
|
v = v.strip()
|
|
if k in env:
|
|
continue
|
|
envk = 'HTTP_' + k
|
|
if envk in env:
|
|
env[envk] += ',' + v
|
|
else:
|
|
env[envk] = v
|
|
|
|
if env.get('HTTP_EXPECT') == '100-continue':
|
|
wfile = self.wfile
|
|
wfile_line = 'HTTP/1.1 100 Continue\r\n'
|
|
else:
|
|
wfile = None
|
|
wfile_line = None
|
|
chunked = env.get('HTTP_TRANSFER_ENCODING', '').lower() == 'chunked'
|
|
env['wsgi.input'] = env['eventlet.input'] = Input(
|
|
self.rfile, length, wfile=wfile, wfile_line=wfile_line,
|
|
chunked_input=chunked)
|
|
env['eventlet.posthooks'] = []
|
|
|
|
return env
|
|
|
|
def finish(self):
|
|
try:
|
|
BaseHTTPServer.BaseHTTPRequestHandler.finish(self)
|
|
except socket.error as e:
|
|
# Broken pipe, connection reset by peer
|
|
if support.get_errno(e) not in BROKEN_SOCK:
|
|
raise
|
|
greenio.shutdown_safe(self.connection)
|
|
self.connection.close()
|
|
|
|
|
|
class Server(BaseHTTPServer.HTTPServer):
|
|
|
|
def __init__(self,
|
|
socket,
|
|
address,
|
|
app,
|
|
log=None,
|
|
environ=None,
|
|
max_http_version=None,
|
|
protocol=HttpProtocol,
|
|
minimum_chunk_size=None,
|
|
log_x_forwarded_for=True,
|
|
keepalive=True,
|
|
log_output=True,
|
|
log_format=DEFAULT_LOG_FORMAT,
|
|
url_length_limit=MAX_REQUEST_LINE,
|
|
debug=True,
|
|
socket_timeout=None,
|
|
capitalize_response_headers=True):
|
|
|
|
self.outstanding_requests = 0
|
|
self.socket = socket
|
|
self.address = address
|
|
if log:
|
|
self.log = log
|
|
else:
|
|
self.log = sys.stderr
|
|
self.app = app
|
|
self.keepalive = keepalive
|
|
self.environ = environ
|
|
self.max_http_version = max_http_version
|
|
self.protocol = protocol
|
|
self.pid = os.getpid()
|
|
self.minimum_chunk_size = minimum_chunk_size
|
|
self.log_x_forwarded_for = log_x_forwarded_for
|
|
self.log_output = log_output
|
|
self.log_format = log_format
|
|
self.url_length_limit = url_length_limit
|
|
self.debug = debug
|
|
self.socket_timeout = socket_timeout
|
|
self.capitalize_response_headers = capitalize_response_headers
|
|
|
|
if not self.capitalize_response_headers:
|
|
warnings.warn("""capitalize_response_headers is disabled.
|
|
Please, make sure you know what you are doing.
|
|
HTTP headers names are case-insensitive per RFC standard.
|
|
Most likely, you need to fix HTTP parsing in your client software.""",
|
|
DeprecationWarning, stacklevel=3)
|
|
|
|
def get_environ(self):
|
|
d = {
|
|
'wsgi.errors': sys.stderr,
|
|
'wsgi.version': (1, 0),
|
|
'wsgi.multithread': True,
|
|
'wsgi.multiprocess': False,
|
|
'wsgi.run_once': False,
|
|
'wsgi.url_scheme': 'http',
|
|
}
|
|
# detect secure socket
|
|
if hasattr(self.socket, 'do_handshake'):
|
|
d['wsgi.url_scheme'] = 'https'
|
|
d['HTTPS'] = 'on'
|
|
if self.environ is not None:
|
|
d.update(self.environ)
|
|
return d
|
|
|
|
def process_request(self, sock_params):
|
|
# The actual request handling takes place in __init__, so we need to
|
|
# set minimum_chunk_size before __init__ executes and we don't want to modify
|
|
# class variable
|
|
sock, address = sock_params
|
|
proto = new(self.protocol)
|
|
if self.minimum_chunk_size is not None:
|
|
proto.minimum_chunk_size = self.minimum_chunk_size
|
|
proto.capitalize_response_headers = self.capitalize_response_headers
|
|
try:
|
|
proto.__init__(sock, address, self)
|
|
except socket.timeout:
|
|
# Expected exceptions are not exceptional
|
|
sock.close()
|
|
if self.debug:
|
|
# similar to logging "accepted" in server()
|
|
self.log_message('(%s) timed out %r' % (self.pid, address))
|
|
|
|
def log_message(self, message):
|
|
self.log.write(message + '\n')
|
|
|
|
|
|
try:
|
|
new = types.InstanceType
|
|
except AttributeError:
|
|
new = lambda cls: cls.__new__(cls)
|
|
|
|
|
|
try:
|
|
import ssl
|
|
ACCEPT_EXCEPTIONS = (socket.error, ssl.SSLError)
|
|
ACCEPT_ERRNO = set((errno.EPIPE, errno.EBADF, errno.ECONNRESET,
|
|
ssl.SSL_ERROR_EOF, ssl.SSL_ERROR_SSL))
|
|
except ImportError:
|
|
ACCEPT_EXCEPTIONS = (socket.error,)
|
|
ACCEPT_ERRNO = set((errno.EPIPE, errno.EBADF, errno.ECONNRESET))
|
|
|
|
|
|
def server(sock, site,
|
|
log=None,
|
|
environ=None,
|
|
max_size=None,
|
|
max_http_version=DEFAULT_MAX_HTTP_VERSION,
|
|
protocol=HttpProtocol,
|
|
server_event=None,
|
|
minimum_chunk_size=None,
|
|
log_x_forwarded_for=True,
|
|
custom_pool=None,
|
|
keepalive=True,
|
|
log_output=True,
|
|
log_format=DEFAULT_LOG_FORMAT,
|
|
url_length_limit=MAX_REQUEST_LINE,
|
|
debug=True,
|
|
socket_timeout=None,
|
|
capitalize_response_headers=True):
|
|
"""Start up a WSGI server handling requests from the supplied server
|
|
socket. This function loops forever. The *sock* object will be
|
|
closed after server exits, but the underlying file descriptor will
|
|
remain open, so if you have a dup() of *sock*, it will remain usable.
|
|
|
|
:param sock: Server socket, must be already bound to a port and listening.
|
|
:param site: WSGI application function.
|
|
:param log: File-like object that logs should be written to.
|
|
If not specified, sys.stderr is used.
|
|
:param environ: Additional parameters that go into the environ dictionary of every request.
|
|
:param max_size: Maximum number of client connections opened at any time by this server.
|
|
:param max_http_version: Set to "HTTP/1.0" to make the server pretend it only supports HTTP 1.0.
|
|
This can help with applications or clients that don't behave properly using HTTP 1.1.
|
|
:param protocol: Protocol class. Deprecated.
|
|
:param server_event: Used to collect the Server object. Deprecated.
|
|
:param minimum_chunk_size: Minimum size in bytes for http chunks. This can be used to improve
|
|
performance of applications which yield many small strings, though
|
|
using it technically violates the WSGI spec. This can be overridden
|
|
on a per request basis by setting environ['eventlet.minimum_write_chunk_size'].
|
|
:param log_x_forwarded_for: If True (the default), logs the contents of the x-forwarded-for
|
|
header in addition to the actual client ip address in the 'client_ip' field of the
|
|
log line.
|
|
:param custom_pool: A custom GreenPool instance which is used to spawn client green threads.
|
|
If this is supplied, max_size is ignored.
|
|
:param keepalive: If set to False, disables keepalives on the server; all connections will be
|
|
closed after serving one request.
|
|
:param log_output: A Boolean indicating if the server will log data or not.
|
|
:param log_format: A python format string that is used as the template to generate log lines.
|
|
The following values can be formatted into it: client_ip, date_time, request_line,
|
|
status_code, body_length, wall_seconds. The default is a good example of how to
|
|
use it.
|
|
:param url_length_limit: A maximum allowed length of the request url. If exceeded, 414 error
|
|
is returned.
|
|
:param debug: True if the server should send exception tracebacks to the clients on 500 errors.
|
|
If False, the server will respond with empty bodies.
|
|
:param socket_timeout: Timeout for client connections' socket operations. Default None means
|
|
wait forever.
|
|
:param capitalize_response_headers: Normalize response headers' names to Foo-Bar.
|
|
Default is True.
|
|
"""
|
|
serv = Server(sock, sock.getsockname(),
|
|
site, log,
|
|
environ=environ,
|
|
max_http_version=max_http_version,
|
|
protocol=protocol,
|
|
minimum_chunk_size=minimum_chunk_size,
|
|
log_x_forwarded_for=log_x_forwarded_for,
|
|
keepalive=keepalive,
|
|
log_output=log_output,
|
|
log_format=log_format,
|
|
url_length_limit=url_length_limit,
|
|
debug=debug,
|
|
socket_timeout=socket_timeout,
|
|
capitalize_response_headers=capitalize_response_headers,
|
|
)
|
|
if server_event is not None:
|
|
server_event.send(serv)
|
|
if max_size is None:
|
|
max_size = DEFAULT_MAX_SIMULTANEOUS_REQUESTS
|
|
if custom_pool is not None:
|
|
pool = custom_pool
|
|
else:
|
|
pool = greenpool.GreenPool(max_size)
|
|
try:
|
|
host, port = sock.getsockname()[:2]
|
|
port = ':%s' % (port, )
|
|
if hasattr(sock, 'do_handshake'):
|
|
scheme = 'https'
|
|
if port == ':443':
|
|
port = ''
|
|
else:
|
|
scheme = 'http'
|
|
if port == ':80':
|
|
port = ''
|
|
|
|
serv.log.write("(%s) wsgi starting up on %s://%s%s/\n" % (
|
|
serv.pid, scheme, host, port))
|
|
while True:
|
|
try:
|
|
client_socket = sock.accept()
|
|
client_socket[0].settimeout(serv.socket_timeout)
|
|
if debug:
|
|
serv.log.write("(%s) accepted %r\n" % (
|
|
serv.pid, client_socket[1]))
|
|
try:
|
|
pool.spawn_n(serv.process_request, client_socket)
|
|
except AttributeError:
|
|
warnings.warn("wsgi's pool should be an instance of "
|
|
"eventlet.greenpool.GreenPool, is %s. Please convert your"
|
|
" call site to use GreenPool instead" % type(pool),
|
|
DeprecationWarning, stacklevel=2)
|
|
pool.execute_async(serv.process_request, client_socket)
|
|
except ACCEPT_EXCEPTIONS as e:
|
|
if support.get_errno(e) not in ACCEPT_ERRNO:
|
|
raise
|
|
except (KeyboardInterrupt, SystemExit):
|
|
serv.log.write("wsgi exiting\n")
|
|
break
|
|
finally:
|
|
try:
|
|
# NOTE: It's not clear whether we want this to leave the
|
|
# socket open or close it. Use cases like Spawning want
|
|
# the underlying fd to remain open, but if we're going
|
|
# that far we might as well not bother closing sock at
|
|
# all.
|
|
sock.close()
|
|
except socket.error as e:
|
|
if support.get_errno(e) not in BROKEN_SOCK:
|
|
traceback.print_exc()
|