mirror of
https://gitee.com/gitea/gitea
synced 2025-11-04 16:40:24 +08:00
Enables mssql support (#383)
* Enables mssql support Port of dlobs work in gogs. Enables options in index.js Enables MSSQL as a database option in go. Sets ID to 0 on initial migration. Required for MSSQL insert statements. Signed-off-by: Beau Trepp <beautrepp@gmail.com> * Vendors in denisenkom/go-mssqldb Includes golang.org/x/crypto/md4 as this is required by go-msssqldb Signed-off-by: Beau Trepp <beautrepp@gmail.com>
This commit is contained in:
btrepp
283
vendor/github.com/denisenkom/go-mssqldb/ntlm.go
generated
vendored
Normal file
283
vendor/github.com/denisenkom/go-mssqldb/ntlm.go
generated
vendored
Normal file
@@ -0,0 +1,283 @@
|
||||
// +build !windows
|
||||
|
||||
package mssql
|
||||
|
||||
import (
|
||||
"crypto/des"
|
||||
"crypto/md5"
|
||||
"crypto/rand"
|
||||
"encoding/binary"
|
||||
"errors"
|
||||
"strings"
|
||||
"unicode/utf16"
|
||||
|
||||
"golang.org/x/crypto/md4"
|
||||
)
|
||||
|
||||
const (
|
||||
NEGOTIATE_MESSAGE = 1
|
||||
CHALLENGE_MESSAGE = 2
|
||||
AUTHENTICATE_MESSAGE = 3
|
||||
)
|
||||
|
||||
const (
|
||||
NEGOTIATE_UNICODE = 0x00000001
|
||||
NEGOTIATE_OEM = 0x00000002
|
||||
NEGOTIATE_TARGET = 0x00000004
|
||||
NEGOTIATE_SIGN = 0x00000010
|
||||
NEGOTIATE_SEAL = 0x00000020
|
||||
NEGOTIATE_DATAGRAM = 0x00000040
|
||||
NEGOTIATE_LMKEY = 0x00000080
|
||||
NEGOTIATE_NTLM = 0x00000200
|
||||
NEGOTIATE_ANONYMOUS = 0x00000800
|
||||
NEGOTIATE_OEM_DOMAIN_SUPPLIED = 0x00001000
|
||||
NEGOTIATE_OEM_WORKSTATION_SUPPLIED = 0x00002000
|
||||
NEGOTIATE_ALWAYS_SIGN = 0x00008000
|
||||
NEGOTIATE_TARGET_TYPE_DOMAIN = 0x00010000
|
||||
NEGOTIATE_TARGET_TYPE_SERVER = 0x00020000
|
||||
NEGOTIATE_EXTENDED_SESSIONSECURITY = 0x00080000
|
||||
NEGOTIATE_IDENTIFY = 0x00100000
|
||||
REQUEST_NON_NT_SESSION_KEY = 0x00400000
|
||||
NEGOTIATE_TARGET_INFO = 0x00800000
|
||||
NEGOTIATE_VERSION = 0x02000000
|
||||
NEGOTIATE_128 = 0x20000000
|
||||
NEGOTIATE_KEY_EXCH = 0x40000000
|
||||
NEGOTIATE_56 = 0x80000000
|
||||
)
|
||||
|
||||
const NEGOTIATE_FLAGS = NEGOTIATE_UNICODE |
|
||||
NEGOTIATE_NTLM |
|
||||
NEGOTIATE_OEM_DOMAIN_SUPPLIED |
|
||||
NEGOTIATE_OEM_WORKSTATION_SUPPLIED |
|
||||
NEGOTIATE_ALWAYS_SIGN |
|
||||
NEGOTIATE_EXTENDED_SESSIONSECURITY
|
||||
|
||||
type NTLMAuth struct {
|
||||
Domain string
|
||||
UserName string
|
||||
Password string
|
||||
Workstation string
|
||||
}
|
||||
|
||||
func getAuth(user, password, service, workstation string) (Auth, bool) {
|
||||
if !strings.ContainsRune(user, '\\') {
|
||||
return nil, false
|
||||
}
|
||||
domain_user := strings.SplitN(user, "\\", 2)
|
||||
return &NTLMAuth{
|
||||
Domain: domain_user[0],
|
||||
UserName: domain_user[1],
|
||||
Password: password,
|
||||
Workstation: workstation,
|
||||
}, true
|
||||
}
|
||||
|
||||
func utf16le(val string) []byte {
|
||||
var v []byte
|
||||
for _, r := range val {
|
||||
if utf16.IsSurrogate(r) {
|
||||
r1, r2 := utf16.EncodeRune(r)
|
||||
v = append(v, byte(r1), byte(r1>>8))
|
||||
v = append(v, byte(r2), byte(r2>>8))
|
||||
} else {
|
||||
v = append(v, byte(r), byte(r>>8))
|
||||
}
|
||||
}
|
||||
return v
|
||||
}
|
||||
|
||||
func (auth *NTLMAuth) InitialBytes() ([]byte, error) {
|
||||
domain_len := len(auth.Domain)
|
||||
workstation_len := len(auth.Workstation)
|
||||
msg := make([]byte, 40+domain_len+workstation_len)
|
||||
copy(msg, []byte("NTLMSSP\x00"))
|
||||
binary.LittleEndian.PutUint32(msg[8:], NEGOTIATE_MESSAGE)
|
||||
binary.LittleEndian.PutUint32(msg[12:], NEGOTIATE_FLAGS)
|
||||
// Domain Name Fields
|
||||
binary.LittleEndian.PutUint16(msg[16:], uint16(domain_len))
|
||||
binary.LittleEndian.PutUint16(msg[18:], uint16(domain_len))
|
||||
binary.LittleEndian.PutUint32(msg[20:], 40)
|
||||
// Workstation Fields
|
||||
binary.LittleEndian.PutUint16(msg[24:], uint16(workstation_len))
|
||||
binary.LittleEndian.PutUint16(msg[26:], uint16(workstation_len))
|
||||
binary.LittleEndian.PutUint32(msg[28:], uint32(40+domain_len))
|
||||
// Version
|
||||
binary.LittleEndian.PutUint32(msg[32:], 0)
|
||||
binary.LittleEndian.PutUint32(msg[36:], 0)
|
||||
// Payload
|
||||
copy(msg[40:], auth.Domain)
|
||||
copy(msg[40+domain_len:], auth.Workstation)
|
||||
return msg, nil
|
||||
}
|
||||
|
||||
var errorNTLM = errors.New("NTLM protocol error")
|
||||
|
||||
func createDesKey(bytes, material []byte) {
|
||||
material[0] = bytes[0]
|
||||
material[1] = (byte)(bytes[0]<<7 | (bytes[1]&0xff)>>1)
|
||||
material[2] = (byte)(bytes[1]<<6 | (bytes[2]&0xff)>>2)
|
||||
material[3] = (byte)(bytes[2]<<5 | (bytes[3]&0xff)>>3)
|
||||
material[4] = (byte)(bytes[3]<<4 | (bytes[4]&0xff)>>4)
|
||||
material[5] = (byte)(bytes[4]<<3 | (bytes[5]&0xff)>>5)
|
||||
material[6] = (byte)(bytes[5]<<2 | (bytes[6]&0xff)>>6)
|
||||
material[7] = (byte)(bytes[6] << 1)
|
||||
}
|
||||
|
||||
func oddParity(bytes []byte) {
|
||||
for i := 0; i < len(bytes); i++ {
|
||||
b := bytes[i]
|
||||
needsParity := (((b >> 7) ^ (b >> 6) ^ (b >> 5) ^ (b >> 4) ^ (b >> 3) ^ (b >> 2) ^ (b >> 1)) & 0x01) == 0
|
||||
if needsParity {
|
||||
bytes[i] = bytes[i] | byte(0x01)
|
||||
} else {
|
||||
bytes[i] = bytes[i] & byte(0xfe)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func encryptDes(key []byte, cleartext []byte, ciphertext []byte) {
|
||||
var desKey [8]byte
|
||||
createDesKey(key, desKey[:])
|
||||
cipher, err := des.NewCipher(desKey[:])
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
cipher.Encrypt(ciphertext, cleartext)
|
||||
}
|
||||
|
||||
func response(challenge [8]byte, hash [21]byte) (ret [24]byte) {
|
||||
encryptDes(hash[:7], challenge[:], ret[:8])
|
||||
encryptDes(hash[7:14], challenge[:], ret[8:16])
|
||||
encryptDes(hash[14:], challenge[:], ret[16:])
|
||||
return
|
||||
}
|
||||
|
||||
func lmHash(password string) (hash [21]byte) {
|
||||
var lmpass [14]byte
|
||||
copy(lmpass[:14], []byte(strings.ToUpper(password)))
|
||||
magic := []byte("KGS!@#$%")
|
||||
encryptDes(lmpass[:7], magic, hash[:8])
|
||||
encryptDes(lmpass[7:], magic, hash[8:])
|
||||
return
|
||||
}
|
||||
|
||||
func lmResponse(challenge [8]byte, password string) [24]byte {
|
||||
hash := lmHash(password)
|
||||
return response(challenge, hash)
|
||||
}
|
||||
|
||||
func ntlmHash(password string) (hash [21]byte) {
|
||||
h := md4.New()
|
||||
h.Write(utf16le(password))
|
||||
h.Sum(hash[:0])
|
||||
return
|
||||
}
|
||||
|
||||
func ntResponse(challenge [8]byte, password string) [24]byte {
|
||||
hash := ntlmHash(password)
|
||||
return response(challenge, hash)
|
||||
}
|
||||
|
||||
func clientChallenge() (nonce [8]byte) {
|
||||
_, err := rand.Read(nonce[:])
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func ntlmSessionResponse(clientNonce [8]byte, serverChallenge [8]byte, password string) [24]byte {
|
||||
var sessionHash [16]byte
|
||||
h := md5.New()
|
||||
h.Write(serverChallenge[:])
|
||||
h.Write(clientNonce[:])
|
||||
h.Sum(sessionHash[:0])
|
||||
var hash [8]byte
|
||||
copy(hash[:], sessionHash[:8])
|
||||
passwordHash := ntlmHash(password)
|
||||
return response(hash, passwordHash)
|
||||
}
|
||||
|
||||
func (auth *NTLMAuth) NextBytes(bytes []byte) ([]byte, error) {
|
||||
if string(bytes[0:8]) != "NTLMSSP\x00" {
|
||||
return nil, errorNTLM
|
||||
}
|
||||
if binary.LittleEndian.Uint32(bytes[8:12]) != CHALLENGE_MESSAGE {
|
||||
return nil, errorNTLM
|
||||
}
|
||||
flags := binary.LittleEndian.Uint32(bytes[20:24])
|
||||
var challenge [8]byte
|
||||
copy(challenge[:], bytes[24:32])
|
||||
|
||||
var lm, nt []byte
|
||||
if (flags & NEGOTIATE_EXTENDED_SESSIONSECURITY) != 0 {
|
||||
nonce := clientChallenge()
|
||||
var lm_bytes [24]byte
|
||||
copy(lm_bytes[:8], nonce[:])
|
||||
lm = lm_bytes[:]
|
||||
nt_bytes := ntlmSessionResponse(nonce, challenge, auth.Password)
|
||||
nt = nt_bytes[:]
|
||||
} else {
|
||||
lm_bytes := lmResponse(challenge, auth.Password)
|
||||
lm = lm_bytes[:]
|
||||
nt_bytes := ntResponse(challenge, auth.Password)
|
||||
nt = nt_bytes[:]
|
||||
}
|
||||
lm_len := len(lm)
|
||||
nt_len := len(nt)
|
||||
|
||||
domain16 := utf16le(auth.Domain)
|
||||
domain_len := len(domain16)
|
||||
user16 := utf16le(auth.UserName)
|
||||
user_len := len(user16)
|
||||
workstation16 := utf16le(auth.Workstation)
|
||||
workstation_len := len(workstation16)
|
||||
|
||||
msg := make([]byte, 88+lm_len+nt_len+domain_len+user_len+workstation_len)
|
||||
copy(msg, []byte("NTLMSSP\x00"))
|
||||
binary.LittleEndian.PutUint32(msg[8:], AUTHENTICATE_MESSAGE)
|
||||
// Lm Challenge Response Fields
|
||||
binary.LittleEndian.PutUint16(msg[12:], uint16(lm_len))
|
||||
binary.LittleEndian.PutUint16(msg[14:], uint16(lm_len))
|
||||
binary.LittleEndian.PutUint32(msg[16:], 88)
|
||||
// Nt Challenge Response Fields
|
||||
binary.LittleEndian.PutUint16(msg[20:], uint16(nt_len))
|
||||
binary.LittleEndian.PutUint16(msg[22:], uint16(nt_len))
|
||||
binary.LittleEndian.PutUint32(msg[24:], uint32(88+lm_len))
|
||||
// Domain Name Fields
|
||||
binary.LittleEndian.PutUint16(msg[28:], uint16(domain_len))
|
||||
binary.LittleEndian.PutUint16(msg[30:], uint16(domain_len))
|
||||
binary.LittleEndian.PutUint32(msg[32:], uint32(88+lm_len+nt_len))
|
||||
// User Name Fields
|
||||
binary.LittleEndian.PutUint16(msg[36:], uint16(user_len))
|
||||
binary.LittleEndian.PutUint16(msg[38:], uint16(user_len))
|
||||
binary.LittleEndian.PutUint32(msg[40:], uint32(88+lm_len+nt_len+domain_len))
|
||||
// Workstation Fields
|
||||
binary.LittleEndian.PutUint16(msg[44:], uint16(workstation_len))
|
||||
binary.LittleEndian.PutUint16(msg[46:], uint16(workstation_len))
|
||||
binary.LittleEndian.PutUint32(msg[48:], uint32(88+lm_len+nt_len+domain_len+user_len))
|
||||
// Encrypted Random Session Key Fields
|
||||
binary.LittleEndian.PutUint16(msg[52:], 0)
|
||||
binary.LittleEndian.PutUint16(msg[54:], 0)
|
||||
binary.LittleEndian.PutUint32(msg[56:], uint32(88+lm_len+nt_len+domain_len+user_len+workstation_len))
|
||||
// Negotiate Flags
|
||||
binary.LittleEndian.PutUint32(msg[60:], flags)
|
||||
// Version
|
||||
binary.LittleEndian.PutUint32(msg[64:], 0)
|
||||
binary.LittleEndian.PutUint32(msg[68:], 0)
|
||||
// MIC
|
||||
binary.LittleEndian.PutUint32(msg[72:], 0)
|
||||
binary.LittleEndian.PutUint32(msg[76:], 0)
|
||||
binary.LittleEndian.PutUint32(msg[88:], 0)
|
||||
binary.LittleEndian.PutUint32(msg[84:], 0)
|
||||
// Payload
|
||||
copy(msg[88:], lm)
|
||||
copy(msg[88+lm_len:], nt)
|
||||
copy(msg[88+lm_len+nt_len:], domain16)
|
||||
copy(msg[88+lm_len+nt_len+domain_len:], user16)
|
||||
copy(msg[88+lm_len+nt_len+domain_len+user_len:], workstation16)
|
||||
return msg, nil
|
||||
}
|
||||
|
||||
func (auth *NTLMAuth) Free() {
|
||||
}
|
||||
Reference in New Issue
Block a user