Parser fails to get HTTP version for HTTP 2 protocol

[jsalort]

The parser works fine with HTTP/1.1 but fails with HTTP/2 that appears in Apache log with Protocols h2.

Simple example (lineB is an actual output in the Apache server log file, lineA is used to demonstrate that it works when replacing HTTP/2 by HTTP/1.1).

from apache_log_parser import make_parser
from pprint import pprint

lineA = '''137.226.113.25 - - [31/Dec/2017:03:14:19 +0100] "GET / HTTP/1.1" 200 0 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:50.0) Gecko/20100101 Firefox/50.0"'''
lineB = '''137.226.113.25 - - [31/Dec/2017:03:14:19 +0100] "GET / HTTP/2" 200 0 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:50.0) Gecko/20100101 Firefox/50.0"'''

line_parser = make_parser("%h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"")

dataA = line_parser(lineA)
pprint(dataA)
dataB = line_parser(lineB)
pprint(dataB)