144 lines
3.2 KiB
Python
Executable File
144 lines
3.2 KiB
Python
Executable File
#!/usr/bin/env python3
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HEADERS = [
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(':authority', 0),
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(':method', 1),
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(':method', 2),
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(':path', 3),
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(':path', 4),
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(':scheme', 5),
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(':scheme', 6),
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(':status', 7),
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(':status', 8),
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(':status', 9),
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(':status', 10),
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(':status', 11),
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(':status', 12),
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(':status', 13),
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('accept-charset', 14),
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('accept-encoding', 15),
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('accept-language', 16),
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('accept-ranges', 17),
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('accept', 18),
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('access-control-allow-origin', 19),
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('age', 20),
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('allow', 21),
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('authorization', 22),
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('cache-control', 23),
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('content-disposition', 24),
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('content-encoding', 25),
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('content-language', 26),
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('content-length', 27),
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('content-location', 28),
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('content-range', 29),
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('content-type', 30),
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('cookie', 31),
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('date', 32),
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('etag', 33),
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('expect', 34),
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('expires', 35),
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('from', 36),
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('host', 37),
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('if-match', 38),
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('if-modified-since', 39),
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('if-none-match', 40),
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('if-range', 41),
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('if-unmodified-since', 42),
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('last-modified', 43),
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('link', 44),
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('location', 45),
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('max-forwards', 46),
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('proxy-authenticate', 47),
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('proxy-authorization', 48),
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('range', 49),
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('referer', 50),
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('refresh', 51),
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('retry-after', 52),
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('server', 53),
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('set-cookie', 54),
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('strict-transport-security', 55),
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('transfer-encoding', 56),
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('user-agent', 57),
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('vary', 58),
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('via', 59),
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('www-authenticate', 60),
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('te', None),
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('connection', None),
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('keep-alive',None),
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('proxy-connection', None),
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('upgrade', None),
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(':protocol', None),
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('priority', None),
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]
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def to_enum_hd(k):
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res = 'NGHTTP2_TOKEN_'
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for c in k.upper():
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if c == ':' or c == '-':
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res += '_'
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continue
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res += c
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return res
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def build_header(headers):
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res = {}
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for k, _ in headers:
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size = len(k)
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if size not in res:
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res[size] = {}
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ent = res[size]
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c = k[-1]
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if c not in ent:
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ent[c] = []
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if k not in ent[c]:
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ent[c].append(k)
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return res
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def gen_enum():
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name = ''
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print('typedef enum {')
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for k, token in HEADERS:
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if token is None:
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print(' {},'.format(to_enum_hd(k)))
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else:
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if name != k:
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name = k
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print(' {} = {},'.format(to_enum_hd(k), token))
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print('} nghttp2_token;')
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def gen_index_header():
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print('''\
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static int32_t lookup_token(const uint8_t *name, size_t namelen) {
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switch (namelen) {''')
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b = build_header(HEADERS)
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for size in sorted(b.keys()):
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ents = b[size]
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print('''\
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case {}:'''.format(size))
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print('''\
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switch (name[{}]) {{'''.format(size - 1))
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for c in sorted(ents.keys()):
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headers = sorted(ents[c])
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print('''\
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case '{}':'''.format(c))
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for k in headers:
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print('''\
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if (memeq("{}", name, {})) {{
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return {};
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}}'''.format(k[:-1], size - 1, to_enum_hd(k)))
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print('''\
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break;''')
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print('''\
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}
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break;''')
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print('''\
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}
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return -1;
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}''')
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if __name__ == '__main__':
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gen_enum()
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print()
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gen_index_header()
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