config_handler.py

import json
# Listen port for the HTTP proxy.
global LISTEN_PORT

# Date to get pages from Wayback. YYYYMMDD, YYYYMM and YYYY formats are
# accepted, the more specific the better.
global DATE 

# Allow the client to load pages and assets up to X days after DATE.
# Set to None to disable this restriction.
global DATE_TOLERANCE

# Send Geocities requests to oocities.org if set to True.
global GEOCITIES_FIX

# Use the original Wayback Machine URL as a shortcut when loading images.
# May result in faster page loads, but all images will point to
# http://web.archive.org/... as a side effect. Set this value to 2 to enable an
# experimental mode using authentication on top of the original URLs instead
# (which is not supported by Internet Explorer and some other browsers).
global QUICK_IMAGES

# Use the Wayback Machine Availability API to find the closest available
# snapshot to the desired date, instead of directly requesting that date. Helps
# in situations where an image returns a server error on the desired date, but
# is available at an earlier date. As a side effect, pages will take longer to
# load due to the added API call. If enabled, this option will disable the
# QUICK_IMAGES bypass mechanism built into the PAC file.
global WAYBACK_API

# Allow the Content-Type header to contain an encoding. Some old browsers
# (Mosaic?) don't understand that and fail to load anything - set this to
# False if you're using one of them.
global CONTENT_TYPE_ENCODING

# Disables logging if set to True.
global SILENT

# Enables the settings page on http://web.archive.org if set to True.
global SETTINGS_PAGE

try:
	with open("config.json") as f:
		data = json.loads(f.read())
		LISTEN_PORT = data["LISTEN_PORT"]
		DATE = data["DATE"]
		DATE_TOLERANCE = data["DATE_TOLERANCE"]
		GEOCITIES_FIX = data["GEOCITIES_FIX"]
		QUICK_IMAGES = data["QUICK_IMAGES"]
		WAYBACK_API = data["WAYBACK_API"]
		CONTENT_TYPE_ENCODING = data["CONTENT_TYPE_ENCODING"]
		SILENT = data["SILENT"]
		SETTINGS_PAGE = data["SETTINGS_PAGE"]
except EnvironmentError as e:
	print("Wops! Error opening config.json")