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				|  |  | -#  Copyright (c) 2004-2009 Sergey Lyubka
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				|  |  | -#
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				|  |  | -#  Permission is hereby granted, free of charge, to any person obtaining a copy
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				|  |  | -#  of this software and associated documentation files (the "Software"), to deal
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				|  |  | -#  in the Software without restriction, including without limitation the rights
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				|  |  | -#  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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				|  |  | -#  copies of the Software, and to permit persons to whom the Software is
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				|  |  | -#  furnished to do so, subject to the following conditions:
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				|  |  | -#
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				|  |  | -#  The above copyright notice and this permission notice shall be included in
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				|  |  | -#  all copies or substantial portions of the Software.
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				|  |  | -#
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				|  |  | -#  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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				|  |  | -#  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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				|  |  | -#  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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				|  |  | -#  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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				|  |  | -#  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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				|  |  | -#  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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				|  |  | -#  THE SOFTWARE.
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				|  |  | -#
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				|  |  | -#  $Id: mongoose.py 471 2009-08-30 14:30:21Z valenok $
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				|  |  | -
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				|  |  | -"""
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				|  |  | -This module provides python binding for the Mongoose web server.
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				|  |  | -
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				|  |  | -There are two classes defined:
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				|  |  | -
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				|  |  | -  Connection: - wraps all functions that accept struct mg_connection pointer
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				|  |  | -  as first argument.
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				|  |  | -
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				|  |  | -  Mongoose: wraps all functions that accept struct mg_context pointer as
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				|  |  | -  first argument.
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				|  |  | -
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				|  |  | -  Creating Mongoose object automatically starts server, deleting object
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				|  |  | -  automatically stops it. There is no need to call mg_start() or mg_stop().
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				|  |  | -"""
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				|  |  | -
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				|  |  | -
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				|  |  | -import ctypes
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				|  |  | -import os
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				|  |  | -
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				|  |  | -
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				|  |  | -NEW_REQUEST       = 0
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				|  |  | -REQUEST_COMPLETE  = 1
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				|  |  | -HTTP_ERROR        = 2
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				|  |  | -EVENT_LOG         = 3
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				|  |  | -INIT_SSL          = 4
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				|  |  | -WEBSOCKET_CONNECT = 5
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				|  |  | -WEBSOCKET_READY   = 6
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				|  |  | -WEBSOCKET_MESSAGE = 7
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				|  |  | -WEBSOCKET_CLOSE   = 8
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				|  |  | -OPEN_FILE         = 9
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				|  |  | -INIT_LUA          = 10
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				|  |  | -
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				|  |  | -
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				|  |  | -class mg_header(ctypes.Structure):
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				|  |  | -  """A wrapper for struct mg_header."""
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				|  |  | -  _fields_ = [
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				|  |  | -    ('name', ctypes.c_char_p),
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				|  |  | -    ('value', ctypes.c_char_p),
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				|  |  | -  ]
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				|  |  | -
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				|  |  | -
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				|  |  | -class mg_request_info(ctypes.Structure):
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				|  |  | -  """A wrapper for struct mg_request_info."""
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				|  |  | -  _fields_ = [
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				|  |  | -    ('request_method', ctypes.c_char_p),
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				|  |  | -    ('uri', ctypes.c_char_p),
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				|  |  | -    ('http_version', ctypes.c_char_p),
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				|  |  | -    ('query_string', ctypes.c_char_p),
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				|  |  | -    ('remote_user', ctypes.c_char_p),
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				|  |  | -    ('remote_ip', ctypes.c_long),
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				|  |  | -    ('remote_port', ctypes.c_int),
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				|  |  | -    ('is_ssl', ctypes.c_int),
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				|  |  | -    ('num_headers', ctypes.c_int),
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				|  |  | -    ('http_headers', mg_header * 64),
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				|  |  | -    ('user_data', ctypes.c_void_p),
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				|  |  | -    ('ev_data', ctypes.c_void_p),
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				|  |  | -  ]
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				|  |  | -
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				|  |  | -
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				|  |  | -mg_callback_t = ctypes.CFUNCTYPE(ctypes.c_void_p, ctypes.c_int, ctypes.c_void_p)
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				|  |  | -
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				|  |  | -
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				|  |  | -class Connection(object):
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				|  |  | -  """A wrapper class for all functions that take
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				|  |  | -  struct mg_connection * as the first argument."""
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				|  |  | -
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				|  |  | -  def __init__(self, mongoose, connection):
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				|  |  | -    self.m = mongoose
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				|  |  | -    self.conn = ctypes.c_void_p(connection)
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				|  |  | -    self.info = self.m.dll.mg_get_request_info(self.conn).contents
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				|  |  | -
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				|  |  | -  def get_header(self, name):
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				|  |  | -    val = self.m.dll.mg_get_header(self.conn, name)
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				|  |  | -    return ctypes.c_char_p(val).value
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				|  |  | -
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				|  |  | -  def get_var(self, data, name):
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				|  |  | -    size = data and len(data) or 0
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				|  |  | -    buf = ctypes.create_string_buffer(size)
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				|  |  | -    n = self.m.dll.mg_get_var(data, size, name, buf, size)
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				|  |  | -    return n >= 0 and buf or None
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				|  |  | -
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				|  |  | -  def printf(self, fmt, *args):
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				|  |  | -    val = self.m.dll.mg_printf(self.conn, fmt, *args)
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				|  |  | -    return ctypes.c_int(val).value
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				|  |  | -
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				|  |  | -  def write(self, data):
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				|  |  | -    val = self.m.dll.mg_write(self.conn, data, len(data))
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				|  |  | -    return ctypes.c_int(val).value
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				|  |  | -
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				|  |  | -  def read(self, size):
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				|  |  | -    buf = ctypes.create_string_buffer(size)
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				|  |  | -    n = self.m.dll.mg_read(self.conn, buf, size)
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				|  |  | -    return n <= 0 and None or buf[:n]
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				|  |  | -
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				|  |  | -  def send_file(self, path):
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				|  |  | -    self.m.dll.mg_send_file(self.conn, path)
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				|  |  | -
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				|  |  | -
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				|  |  | -class Mongoose(object):
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				|  |  | -  """A wrapper class for Mongoose shared library."""
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				|  |  | -
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				|  |  | -  def __init__(self, callback, **kwargs):
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				|  |  | -    if os.name == 'nt':
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				|  |  | -      self.dll = ctypes.WinDLL('mongoose.dll')
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				|  |  | -    else:
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				|  |  | -      self.dll = ctypes.CDLL('libmongoose.so')
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				|  |  | -
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				|  |  | -    self.dll.mg_start.restype = ctypes.c_void_p
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				|  |  | -    self.dll.mg_modify_passwords_file.restype = ctypes.c_int
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				|  |  | -    self.dll.mg_read.restype = ctypes.c_int
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				|  |  | -    self.dll.mg_write.restype = ctypes.c_int
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				|  |  | -    self.dll.mg_printf.restype = ctypes.c_int
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				|  |  | -    self.dll.mg_get_header.restype = ctypes.c_char_p
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				|  |  | -    self.dll.mg_get_var.restype = ctypes.c_int
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				|  |  | -    self.dll.mg_get_cookie.restype = ctypes.c_int
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				|  |  | -    self.dll.mg_get_option.restype = ctypes.c_char_p
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				|  |  | -    self.dll.mg_get_request_info.restype = ctypes.POINTER(mg_request_info)
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				|  |  | -
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				|  |  | -    if callback:
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				|  |  | -      # Create a closure that will be called by the  shared library.
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				|  |  | -      def func(event, connection):
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				|  |  | -        # Wrap connection pointer into the connection
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				|  |  | -        # object and call Python callback
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				|  |  | -        conn = Connection(self, connection)
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				|  |  | -        return callback(event, conn) and 1 or 0
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				|  |  | -
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				|  |  | -      # Convert the closure into C callable object
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				|  |  | -      self.callback = mg_callback_t(func)
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				|  |  | -      self.callback.restype = ctypes.c_char_p
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				|  |  | -    else:
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				|  |  | -      self.callback = ctypes.c_void_p(0)
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				|  |  | -
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				|  |  | -    args = [y for x in kwargs.items() for y in x] + [None]
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				|  |  | -    options = (ctypes.c_char_p * len(args))(*args)
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				|  |  | -
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				|  |  | -    ret = self.dll.mg_start(self.callback, 0, options)
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				|  |  | -    self.ctx = ctypes.c_void_p(ret)
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				|  |  | -
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				|  |  | -  def __del__(self):
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				|  |  | -    """Destructor, stop Mongoose instance."""
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				|  |  | -    self.dll.mg_stop(self.ctx)
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				|  |  | -
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				|  |  | -  def get_option(self, name):
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				|  |  | -    return self.dll.mg_get_option(self.ctx, name)
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