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Bugfix: FingerprintClientHello should work when the dump contains the client's greeting and subsequent frames. Lack of subsequent frames should not lead to inoperability of FingerprintClientHello. (#121)

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svmk 2022-11-18 22:37:16 +07:00 • committed by GitHub
parent ef21c925ea
commit d5cdf5dbe1
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2 changed files with 24 additions and 1 deletions
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23
u_fingerprinter_test.go
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@ -714,3 +714,26 @@ func TestUTLSHandshakeClientFingerprintedSpecFromRaw(t *testing.T) {
runUTLSClientTestTLS13(t, test, hello)
}
// FingerprintClientHello should work when the dump contains the client's greeting and subsequent frames.
// Lack of subsequent frames should not lead to inoperability of FingerprintClientHello.
func TestFingerprintDumpLargerThanExtensions(t *testing.T) {
// Dump of curl/7.74.0 with some test request https://tlsfingerprint.io/id/37695dd988f0c8b8
dump := "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"
// shortDump := "1603010200010001fc03032e763fe74cd8472de77d17eef1cf4cb9b18d0163196a69337d0d7c6c844a1b71202aef889ccf5bdef725185b7c0cc51a100311c7c3992b1d206beaef121a111cc5003e130213031301c02cc030009fcca9cca8ccaac02bc02f009ec024c028006bc023c0270067c00ac0140039c009c0130033009d009c003d003c0035002f00ff010001750000000e000c0000096c6f63616c686f7374000b000403000102000a000c000a001d0017001e00190018337400000010000e000c02683208687474702f312e31001600000017000000310000000d002a0028040305030603080708080809080a080b080408050806040105010601030303010302040205020602002b00050403040303002d00020101003300260024001d00204f21193633f4a0c751143f0084941995cc6fb7cb87545f56f07877c99615f074001500be00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
helloBytes, err := hex.DecodeString(dump)
if err != nil {
t.Error(err)
return
}
f := &Fingerprinter{
AllowBluntMimicry: true,
}
clientHelloSpec, err := f.FingerprintClientHello(helloBytes)
if err != nil {
t.Errorf("got error: %v; expected to succeed", err)
}
if clientHelloSpec == nil {
t.Error("clientHelloSpec cannot be nil")
}
}