# Program to print contents of a URL
# It assumes the resource that the URL points to returns
# UTF-8 encoded characters
# It also handles SSL
# Matt Bishop, MHI 289I, Fall 2021
#
import urllib.request
import ssl

#
# ignore SSL/TLS certificate errors
#
try:
    _create_unverified_https_context = ssl._create_unverified_context
except AttributeError:
    # Legacy Python that doesn't verify HTTPS certificates by default
    pass
else:
    # Handle target environment that doesn't support HTTPS verification
    ssl._create_default_https_context = _create_unverified_https_context
#
# ask for the URL
#
try:
    urlname = input("Please enter the URL: ")
except EOFError:
    print("Bye!")
except:
    print("That's not a valid string. ")
else:
    #
    # got it -- now try to read from the URL
    #
    try:
        webpage = urllib.request.urlopen(urlname)
    except Exception as msg:
        print("URL retrieval failed!", msg)
    else:
        # Read from the object, storing the page's contents in 's'.
        # and print it
        sa = str(webpage.read().decode().encode())
        print(sa)