Simple HTML webserver callback

webserver1_callbacks.py

import os
import mimetypes
from urllib.parse import urlparse

mimetypes.init()

web_root = "WebRoot"

def onHTTPRequest(webServerDAT, request, response):
	url_parsed = urlparse(request['uri'])	# parse the incoming request uri
	path = url_parsed.path.lstrip('/')	# strip the leading slash off of the path
	path = path.replace("/", os.path.sep)	# For Windows: convert slashes to OS-appropraite path separator
	path = os.path.join(web_root, path)	# prefix with the dir where the HTML lives
	
	if os.path.isdir(path):
		path = os.path.join(path, "index.html")
	
	# Does this file exist on the system?
	if os.path.exists(path):
		response['statusCode'] = 200 
		response['statusReason'] = 'OK'
		
		# Certain files (like SVG) require Content-Type 
		type = mimetypes.guess_type(request['uri'])
		if type[0] is not None:
			response["Content-Type"] = type[0]
		
		# Lazy way of determining whether we have binary text file
		try:
			with open(path, mode='r', encoding='utf-8') as file:
				response['data'] = file.read()
		except UnicodeDecodeError:
			with open(path, mode='rb') as file: 
				response['data'] = file.read()
	else:
		response['statusCode'] = 404 
		response['statusReason'] = 'NOT FOUND'
		response['data'] = "File Not Found: " + path
	return response