def build_header_string(header_data):
""" Builds the Authorization header for the oauth requests """
header_string = "OAuth "
encoded_values = []
for key,value in sorted(header_data.items()):
encoded_values.append('{0}="{1}"'.format(encode(key), encode(value)))
header_string += ", ".join(encoded_values)
return header_string
def sign_request(signature_string, consumer_secret):
""" Applies a hash to the request data in order to sign the request """
return hmac(encode(consumer_secret)+"&", signature_string, sha1).digest().encode('base64')[:-1]