import base64 from wptserve.utils import isomorphic_decode # Use numeric references to let the HTML parser take care of inserting the correct code points # rather than trying to figure out the necessary bytes for each encoding. (The latter can be # especially tricky given that Python does not implement the Encoding Standard.) def numeric_references(input): output = b"" for cp in input: output += b"&#x" + format(ord(cp), u"X").encode(u"utf-8") + b";" return output def main(request, response): # Undo the "magic" space with + replacement as otherwise base64 decoding will fail. value = request.GET.first(b"value").replace(b" ", b"+") encoding = request.GET.first(b"encoding") output_value = numeric_references(base64.b64decode(value).decode(u"utf-8")) return ( [(b"Content-Type", b"text/html;charset=" + encoding)], b""" test """ % (output_value, output_value))