mirror of
https://github.com/cbeuw/Cloak.git
synced 2024-10-23 15:46:25 +00:00
58 lines
2.6 KiB
Go
58 lines
2.6 KiB
Go
|
// Firefox 58
|
||
|
package TLS
|
||
|
|
||
|
import (
|
||
|
"encoding/hex"
|
||
|
|
||
|
"github.com/cbeuw/Cloak/internal/client"
|
||
|
"github.com/cbeuw/Cloak/internal/util"
|
||
|
)
|
||
|
|
||
|
type firefox struct {
|
||
|
browser
|
||
|
}
|
||
|
|
||
|
func (f *firefox) composeExtensions(sta *client.State) []byte {
|
||
|
var ext [10][]byte
|
||
|
ext[0] = addExtRec([]byte{0x00, 0x00}, makeServerName(sta)) // server name indication
|
||
|
ext[1] = addExtRec([]byte{0x00, 0x17}, nil) // extended_master_secret
|
||
|
ext[2] = addExtRec([]byte{0xff, 0x01}, []byte{0x00}) // renegotiation_info
|
||
|
suppGroup, _ := hex.DecodeString("0008001d001700180019")
|
||
|
ext[3] = addExtRec([]byte{0x00, 0x0a}, suppGroup) // supported groups
|
||
|
ext[4] = addExtRec([]byte{0x00, 0x0b}, []byte{0x01, 0x00}) // ec point formats
|
||
|
ext[5] = addExtRec([]byte{0x00, 0x23}, client.MakeSessionTicket(sta)) // Session tickets
|
||
|
APLN, _ := hex.DecodeString("000c02683208687474702f312e31")
|
||
|
ext[6] = addExtRec([]byte{0x00, 0x10}, APLN) // app layer proto negotiation
|
||
|
ext[7] = addExtRec([]byte{0x00, 0x05}, []byte{0x01, 0x00, 0x00, 0x00, 0x00}) // status request
|
||
|
sigAlgo, _ := hex.DecodeString("001604030503060308040805080604010501060102030201")
|
||
|
ext[8] = addExtRec([]byte{0x00, 0x0d}, sigAlgo) // Signature Algorithms
|
||
|
ext[9] = addExtRec([]byte{0x00, 0x15}, makeNullBytes(121-len(ext[0]))) // padding
|
||
|
var ret []byte
|
||
|
for i := 0; i < 10; i++ {
|
||
|
ret = append(ret, ext[i]...)
|
||
|
}
|
||
|
return ret
|
||
|
}
|
||
|
|
||
|
func (f *firefox) composeClientHello(sta *client.State) []byte {
|
||
|
var clientHello [12][]byte
|
||
|
clientHello[0] = []byte{0x01} // handshake type
|
||
|
clientHello[1] = []byte{0x00, 0x01, 0xfc} // length 508
|
||
|
clientHello[2] = []byte{0x03, 0x03} // client version
|
||
|
clientHello[3] = client.MakeRandomField(sta) // random
|
||
|
clientHello[4] = []byte{0x20} // session id length 32
|
||
|
clientHello[5] = util.PsudoRandBytes(32, sta.Now().UnixNano()) // session id
|
||
|
clientHello[6] = []byte{0x00, 0x1e} // cipher suites length 28
|
||
|
cipherSuites, _ := hex.DecodeString("c02bc02fcca9cca8c02cc030c00ac009c013c01400330039002f0035000a")
|
||
|
clientHello[7] = cipherSuites // cipher suites
|
||
|
clientHello[8] = []byte{0x01} // compression methods length 1
|
||
|
clientHello[9] = []byte{0x00} // compression methods
|
||
|
clientHello[10] = []byte{0x01, 0x95} // extensions length 405
|
||
|
clientHello[11] = f.composeExtensions(sta) // extensions
|
||
|
var ret []byte
|
||
|
for i := 0; i < 12; i++ {
|
||
|
ret = append(ret, clientHello[i]...)
|
||
|
}
|
||
|
return ret
|
||
|
}
|