1package matchers
2
3var (
4	TypeWoff  = newType("woff", "application/font-woff")
5	TypeWoff2 = newType("woff2", "application/font-woff")
6	TypeTtf   = newType("ttf", "application/font-sfnt")
7	TypeOtf   = newType("otf", "application/font-sfnt")
8)
9
10var Font = Map{
11	TypeWoff:  Woff,
12	TypeWoff2: Woff2,
13	TypeTtf:   Ttf,
14	TypeOtf:   Otf,
15}
16
17func Woff(buf []byte) bool {
18	return len(buf) > 7 &&
19		buf[0] == 0x77 && buf[1] == 0x4F &&
20		buf[2] == 0x46 && buf[3] == 0x46 &&
21		buf[4] == 0x00 && buf[5] == 0x01 &&
22		buf[6] == 0x00 && buf[7] == 0x00
23}
24
25func Woff2(buf []byte) bool {
26	return len(buf) > 7 &&
27		buf[0] == 0x77 && buf[1] == 0x4F &&
28		buf[2] == 0x46 && buf[3] == 0x32 &&
29		buf[4] == 0x00 && buf[5] == 0x01 &&
30		buf[6] == 0x00 && buf[7] == 0x00
31}
32
33func Ttf(buf []byte) bool {
34	return len(buf) > 4 &&
35		buf[0] == 0x00 && buf[1] == 0x01 &&
36		buf[2] == 0x00 && buf[3] == 0x00 &&
37		buf[4] == 0x00
38}
39
40func Otf(buf []byte) bool {
41	return len(buf) > 4 &&
42		buf[0] == 0x4F && buf[1] == 0x54 &&
43		buf[2] == 0x54 && buf[3] == 0x4F &&
44		buf[4] == 0x00
45}
46