98 lines
1.8 KiB
Python
Executable File
98 lines
1.8 KiB
Python
Executable File
#!/usr/bin/env python
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HEADERS = [
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':authority',
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':method',
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':path',
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':scheme',
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':status',
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':host', # for spdy
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'expect',
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'host',
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'if-modified-since',
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"te",
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"cookie",
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"http2-settings",
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"server",
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"via",
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"x-forwarded-for",
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"x-forwarded-proto",
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"alt-svc",
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"content-length",
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"location",
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# disallowed h1 headers
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'connection',
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'keep-alive',
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'proxy-connection',
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'transfer-encoding',
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'upgrade'
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]
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def to_enum_hd(k):
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res = 'HD_'
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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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ent[c].append(k)
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return res
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def gen_enum():
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print '''\
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enum {'''
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for k in sorted(HEADERS):
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print '''\
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{},'''.format(to_enum_hd(k))
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print '''\
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HD_MAXIDX,
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};'''
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def gen_index_header():
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print '''\
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int 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[namelen - 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 (util::streq("{}", 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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