# -*- coding: utf-8 -*-
"""HTTP/2 Frame Type
=======================
.. module:: pcapkit.vendor.http.frame
This module contains the vendor crawler for **HTTP/2 Frame Type**,
which is automatically generating :class:`pcapkit.const.http.frame.Frame`.
"""
import csv
import re
import sys
from pcapkit.vendor.default import Vendor
__all__ = ['Frame']
def hexlify(code: 'int') -> 'str':
"""Convert code to hex form."""
return f'0x{hex(code)[2:].upper().zfill(2)}'
[docs]
class Frame(Vendor):
"""HTTP/2 Frame Type"""
#: Value limit checker.
FLAG = 'isinstance(value, int) and 0x00 <= value <= 0xFF'
#: Link to registry.
LINK = 'https://www.iana.org/assignments/http2-parameters/frame-type.csv'
def process(self, data: 'list[str]') -> 'tuple[list[str], list[str]]':
"""Process CSV data.
Args:
data: CSV data.
Returns:
Enumeration fields and missing fields.
"""
reader = csv.reader(data)
next(reader) # header
enum = [] # type: list[str]
miss = [] # type: list[str]
for item in reader:
name = item[1]
rfcs = item[2]
temp = [] # type: list[str]
for rfc in filter(None, re.split(r'\[|\]', rfcs)):
if 'RFC' in rfc and re.match(r'\d+', rfc[3:]):
#temp.append(f'[{rfc[:3]} {rfc[3:]}]')
temp_split = rfc[3:].split(', ', maxsplit=1)
if len(temp_split) > 1:
temp.append(f'[:rfc:`{temp_split[0]}#{temp_split[1].lower()}`]'.replace(' ', '-'))
else:
temp.append(f'[:rfc:`{temp_split[0]}`]')
else:
temp.append(f'[{rfc}]'.replace('_', ' '))
desc = self.wrap_comment(re.sub(r'\r*\n', ' ', '``%s`` %s' % ( # pylint: disable=consider-using-f-string
name, ''.join(temp) if rfcs else '',
), re.MULTILINE))
try:
tmp1 = int(item[0], base=16)
code = hexlify(tmp1)
renm = self.rename(name, code)
pres = f"{renm} = {code}"
sufs = f'#: {desc}'
#if len(pres) > 74:
# sufs = f"\n{' '*80}{sufs}"
#enum.append(f'{pres.ljust(76)}{sufs}')
enum.append(f'{sufs}\n {pres}')
except ValueError:
start, stop = map(lambda s: int(s, base=16), item[0].split('-'))
miss.append(f'if {hexlify(start)} <= value <= {hexlify(stop)}:')
miss.append(f' #: {desc}')
miss.append(f" return extend_enum(cls, '{name}_0x%s' % hex(value)[2:].upper().zfill(2), value)")
return enum, miss
if __name__ == '__main__':
sys.exit(Frame()) # type: ignore[arg-type]