import csv

list_of_dicts = []
with open("input.txt") as f:
    cr = csv.reader(f,delimiter="|")
    for row in cr:
        d = dict(v.split(":") for v in row[1:])
        d["date"] = row[0]
        list_of_dicts.append(d)

{'date': '2017-07-24 18:34:23', 'PROTOCOL': 'SSL-V1.2', 'RESPONSETIME': '23', 'CN': 'SSL', 'CLIENTIP': '127.0.0.9', 'BYTESIZE': '1456'}