mirror of
https://github.com/go-gitea/gitea
synced 2024-10-31 03:09:26 +01:00
98 lines
3.2 KiB
Go
Vendored
98 lines
3.2 KiB
Go
Vendored
// +build windows
|
|
|
|
package winio
|
|
|
|
import (
|
|
"syscall"
|
|
"unsafe"
|
|
)
|
|
|
|
//sys lookupAccountName(systemName *uint16, accountName string, sid *byte, sidSize *uint32, refDomain *uint16, refDomainSize *uint32, sidNameUse *uint32) (err error) = advapi32.LookupAccountNameW
|
|
//sys convertSidToStringSid(sid *byte, str **uint16) (err error) = advapi32.ConvertSidToStringSidW
|
|
//sys convertStringSecurityDescriptorToSecurityDescriptor(str string, revision uint32, sd *uintptr, size *uint32) (err error) = advapi32.ConvertStringSecurityDescriptorToSecurityDescriptorW
|
|
//sys convertSecurityDescriptorToStringSecurityDescriptor(sd *byte, revision uint32, secInfo uint32, sddl **uint16, sddlSize *uint32) (err error) = advapi32.ConvertSecurityDescriptorToStringSecurityDescriptorW
|
|
//sys localFree(mem uintptr) = LocalFree
|
|
//sys getSecurityDescriptorLength(sd uintptr) (len uint32) = advapi32.GetSecurityDescriptorLength
|
|
|
|
const (
|
|
cERROR_NONE_MAPPED = syscall.Errno(1332)
|
|
)
|
|
|
|
type AccountLookupError struct {
|
|
Name string
|
|
Err error
|
|
}
|
|
|
|
func (e *AccountLookupError) Error() string {
|
|
if e.Name == "" {
|
|
return "lookup account: empty account name specified"
|
|
}
|
|
var s string
|
|
switch e.Err {
|
|
case cERROR_NONE_MAPPED:
|
|
s = "not found"
|
|
default:
|
|
s = e.Err.Error()
|
|
}
|
|
return "lookup account " + e.Name + ": " + s
|
|
}
|
|
|
|
type SddlConversionError struct {
|
|
Sddl string
|
|
Err error
|
|
}
|
|
|
|
func (e *SddlConversionError) Error() string {
|
|
return "convert " + e.Sddl + ": " + e.Err.Error()
|
|
}
|
|
|
|
// LookupSidByName looks up the SID of an account by name
|
|
func LookupSidByName(name string) (sid string, err error) {
|
|
if name == "" {
|
|
return "", &AccountLookupError{name, cERROR_NONE_MAPPED}
|
|
}
|
|
|
|
var sidSize, sidNameUse, refDomainSize uint32
|
|
err = lookupAccountName(nil, name, nil, &sidSize, nil, &refDomainSize, &sidNameUse)
|
|
if err != nil && err != syscall.ERROR_INSUFFICIENT_BUFFER {
|
|
return "", &AccountLookupError{name, err}
|
|
}
|
|
sidBuffer := make([]byte, sidSize)
|
|
refDomainBuffer := make([]uint16, refDomainSize)
|
|
err = lookupAccountName(nil, name, &sidBuffer[0], &sidSize, &refDomainBuffer[0], &refDomainSize, &sidNameUse)
|
|
if err != nil {
|
|
return "", &AccountLookupError{name, err}
|
|
}
|
|
var strBuffer *uint16
|
|
err = convertSidToStringSid(&sidBuffer[0], &strBuffer)
|
|
if err != nil {
|
|
return "", &AccountLookupError{name, err}
|
|
}
|
|
sid = syscall.UTF16ToString((*[0xffff]uint16)(unsafe.Pointer(strBuffer))[:])
|
|
localFree(uintptr(unsafe.Pointer(strBuffer)))
|
|
return sid, nil
|
|
}
|
|
|
|
func SddlToSecurityDescriptor(sddl string) ([]byte, error) {
|
|
var sdBuffer uintptr
|
|
err := convertStringSecurityDescriptorToSecurityDescriptor(sddl, 1, &sdBuffer, nil)
|
|
if err != nil {
|
|
return nil, &SddlConversionError{sddl, err}
|
|
}
|
|
defer localFree(sdBuffer)
|
|
sd := make([]byte, getSecurityDescriptorLength(sdBuffer))
|
|
copy(sd, (*[0xffff]byte)(unsafe.Pointer(sdBuffer))[:len(sd)])
|
|
return sd, nil
|
|
}
|
|
|
|
func SecurityDescriptorToSddl(sd []byte) (string, error) {
|
|
var sddl *uint16
|
|
// The returned string length seems to including an aribtrary number of terminating NULs.
|
|
// Don't use it.
|
|
err := convertSecurityDescriptorToStringSecurityDescriptor(&sd[0], 1, 0xff, &sddl, nil)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
defer localFree(uintptr(unsafe.Pointer(sddl)))
|
|
return syscall.UTF16ToString((*[0xffff]uint16)(unsafe.Pointer(sddl))[:]), nil
|
|
}
|