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gitea/vendor/github.com/quasoft/websspi/win32_windows.go
QuaSoft 7b4d2f7a2a Add single sign-on support via SSPI on Windows (#8463)
* Add single sign-on support via SSPI on Windows

* Ensure plugins implement interface

* Ensure plugins implement interface

* Move functions used only by the SSPI auth method to sspi_windows.go

* Field SSPISeparatorReplacement of AuthenticationForm should not be required via binding, as binding will insist the field is non-empty even if another login type is selected

* Fix breaking of oauth authentication on download links. Do not create new session with SSPI authentication on download links.

* Update documentation for the new 'SPNEGO with SSPI' login source

* Mention in documentation that ROOT_URL should contain the FQDN of the server

* Make sure that Contexter is not checking for active login sources when the ORM engine is not initialized (eg. when installing)

* Always initialize and free SSO methods, even if they are not enabled, as a method can be activated while the app is running (from Authentication sources)

* Add option in SSPIConfig for removing of domains from logon names

* Update helper text for StripDomainNames option

* Make sure handleSignIn() is called after a new user object is created by SSPI auth method

* Remove default value from text of form field helper

Co-Authored-By: Lauris BH <lauris@nix.lv>

* Remove default value from text of form field helper

Co-Authored-By: Lauris BH <lauris@nix.lv>

* Remove default value from text of form field helper

Co-Authored-By: Lauris BH <lauris@nix.lv>

* Only make a query to the DB to check if SSPI is enabled on handlers that need that information for templates

* Remove code duplication

* Log errors in ActiveLoginSources

Co-Authored-By: Lauris BH <lauris@nix.lv>

* Revert suffix of randomly generated E-mails for Reverse proxy authentication

Co-Authored-By: Lauris BH <lauris@nix.lv>

* Revert unneeded white-space change in template

Co-Authored-By: Lauris BH <lauris@nix.lv>

* Add copyright comments at the top of new files

* Use loopback name for randomly generated emails

* Add locale tag for the SSPISeparatorReplacement field with proper casing

* Revert casing of SSPISeparatorReplacement field in locale file, moving it up, next to other form fields

* Update docs/content/doc/features/authentication.en-us.md

Co-Authored-By: guillep2k <18600385+guillep2k@users.noreply.github.com>

* Remove Priority() method and define the order in which SSO auth methods should be executed in one place

* Log authenticated username only if it's not empty

* Rephrase helper text for automatic creation of users

* Return error if more than one active SSPI auth source is found

* Change newUser() function to return error, letting caller log/handle the error

* Move isPublicResource, isPublicPage and handleSignIn functions outside SSPI auth method to allow other SSO methods to reuse them if needed

* Refactor initialization of the list containing SSO auth methods

* Validate SSPI settings on POST

* Change SSPI to only perform authentication on its own login page, API paths and download links. Leave Toggle middleware to redirect non authenticated users to login page

* Make 'Default language' in SSPI config empty, unless changed by admin

* Show error if admin tries to add a second authentication source of type SSPI

* Simplify declaration of global variable

* Rebuild gitgraph.js on Linux

* Make sure config values containing only whitespace are not accepted
2019-11-23 01:33:31 +02:00

313 lines
8.2 KiB
Go
Vendored

package websspi
import (
"syscall"
"unsafe"
"golang.org/x/sys/windows"
)
// secur32.dll
type SECURITY_STATUS syscall.Errno
const (
SEC_E_OK = SECURITY_STATUS(0)
SEC_E_INCOMPLETE_MESSAGE = SECURITY_STATUS(0x80090318)
SEC_E_INSUFFICIENT_MEMORY = SECURITY_STATUS(0x80090300)
SEC_E_INTERNAL_ERROR = SECURITY_STATUS(0x80090304)
SEC_E_INVALID_HANDLE = SECURITY_STATUS(0x80090301)
SEC_E_INVALID_TOKEN = SECURITY_STATUS(0x80090308)
SEC_E_LOGON_DENIED = SECURITY_STATUS(0x8009030C)
SEC_E_NO_AUTHENTICATING_AUTHORITY = SECURITY_STATUS(0x80090311)
SEC_E_NO_CREDENTIALS = SECURITY_STATUS(0x8009030E)
SEC_E_UNSUPPORTED_FUNCTION = SECURITY_STATUS(0x80090302)
SEC_I_COMPLETE_AND_CONTINUE = SECURITY_STATUS(0x00090314)
SEC_I_COMPLETE_NEEDED = SECURITY_STATUS(0x00090313)
SEC_I_CONTINUE_NEEDED = SECURITY_STATUS(0x00090312)
SEC_E_NOT_OWNER = SECURITY_STATUS(0x80090306)
SEC_E_SECPKG_NOT_FOUND = SECURITY_STATUS(0x80090305)
SEC_E_UNKNOWN_CREDENTIALS = SECURITY_STATUS(0x8009030D)
NEGOSSP_NAME = "Negotiate"
SECPKG_CRED_INBOUND = 1
SECURITY_NATIVE_DREP = 16
ASC_REQ_DELEGATE = 1
ASC_REQ_MUTUAL_AUTH = 2
ASC_REQ_REPLAY_DETECT = 4
ASC_REQ_SEQUENCE_DETECT = 8
ASC_REQ_CONFIDENTIALITY = 16
ASC_REQ_USE_SESSION_KEY = 32
ASC_REQ_ALLOCATE_MEMORY = 256
ASC_REQ_USE_DCE_STYLE = 512
ASC_REQ_DATAGRAM = 1024
ASC_REQ_CONNECTION = 2048
ASC_REQ_EXTENDED_ERROR = 32768
ASC_REQ_STREAM = 65536
ASC_REQ_INTEGRITY = 131072
SECPKG_ATTR_SIZES = 0
SECPKG_ATTR_NAMES = 1
SECPKG_ATTR_LIFESPAN = 2
SECPKG_ATTR_DCE_INFO = 3
SECPKG_ATTR_STREAM_SIZES = 4
SECPKG_ATTR_KEY_INFO = 5
SECPKG_ATTR_AUTHORITY = 6
SECPKG_ATTR_PROTO_INFO = 7
SECPKG_ATTR_PASSWORD_EXPIRY = 8
SECPKG_ATTR_SESSION_KEY = 9
SECPKG_ATTR_PACKAGE_INFO = 10
SECPKG_ATTR_USER_FLAGS = 11
SECPKG_ATTR_NEGOTIATION_INFO = 12
SECPKG_ATTR_NATIVE_NAMES = 13
SECPKG_ATTR_FLAGS = 14
SECBUFFER_VERSION = 0
SECBUFFER_TOKEN = 2
)
type CredHandle struct {
Lower uintptr
Upper uintptr
}
type CtxtHandle struct {
Lower uintptr
Upper uintptr
}
type SecBuffer struct {
BufferSize uint32
BufferType uint32
Buffer *byte
}
type SecBufferDesc struct {
Version uint32
BuffersCount uint32
Buffers *SecBuffer
}
type LUID struct {
LowPart uint32
HighPart int32
}
type SecPkgContext_Names struct {
UserName *uint16
}
type SecPkgContext_Flags struct {
Flags uint32
}
// netapi32.dll
const (
NERR_Success = 0x0
NERR_InternalError = 0x85C
NERR_UserNotFound = 0x8AD
ERROR_ACCESS_DENIED = 0x5
ERROR_BAD_NETPATH = 0x35
ERROR_INVALID_LEVEL = 0x7C
ERROR_INVALID_NAME = 0x7B
ERROR_MORE_DATA = 0xEA
ERROR_NOT_ENOUGH_MEMORY = 0x8
MAX_PREFERRED_LENGTH = 0xFFFFFFFF
MAX_GROUP_NAME_LENGTH = 256
SE_GROUP_MANDATORY = 0x1
SE_GROUP_ENABLED_BY_DEFAULT = 0x2
SE_GROUP_ENABLED = 0x4
SE_GROUP_OWNER = 0x8
SE_GROUP_USE_FOR_DENY_ONLY = 0x10
SE_GROUP_INTEGRITY = 0x20
SE_GROUP_INTEGRITY_ENABLED = 0x40
SE_GROUP_LOGON_ID = 0xC0000000
SE_GROUP_RESOURCE = 0x20000000
)
type GroupUsersInfo0 struct {
Grui0_name *uint16
}
type GroupUsersInfo1 struct {
Grui1_name *uint16
Grui1_attributes uint32
}
// The API interface describes the Win32 functions used in this package and
// its primary purpose is to allow replacing them with stub functions in unit tests.
type API interface {
AcquireCredentialsHandle(
principal *uint16,
_package *uint16,
credentialUse uint32,
logonID *LUID,
authData *byte,
getKeyFn uintptr,
getKeyArgument uintptr,
credHandle *CredHandle,
expiry *syscall.Filetime,
) SECURITY_STATUS
AcceptSecurityContext(
credential *CredHandle,
context *CtxtHandle,
input *SecBufferDesc,
contextReq uint32,
targDataRep uint32,
newContext *CtxtHandle,
output *SecBufferDesc,
contextAttr *uint32,
expiry *syscall.Filetime,
) SECURITY_STATUS
QueryContextAttributes(context *CtxtHandle, attribute uint32, buffer *byte) SECURITY_STATUS
DeleteSecurityContext(context *CtxtHandle) SECURITY_STATUS
FreeContextBuffer(buffer *byte) SECURITY_STATUS
FreeCredentialsHandle(handle *CredHandle) SECURITY_STATUS
NetUserGetGroups(
serverName *uint16,
userName *uint16,
level uint32,
buf **byte,
prefmaxlen uint32,
entriesread *uint32,
totalentries *uint32,
) (neterr error)
NetApiBufferFree(buf *byte) (neterr error)
}
// Win32 implements the API interface by calling the relevant system functions
// from secur32.dll and netapi32.dll
type Win32 struct{}
var (
secur32dll = windows.NewLazySystemDLL("secur32.dll")
netapi32dll = windows.NewLazySystemDLL("netapi32.dll")
procAcquireCredentialsHandleW = secur32dll.NewProc("AcquireCredentialsHandleW")
procAcceptSecurityContext = secur32dll.NewProc("AcceptSecurityContext")
procQueryContextAttributesW = secur32dll.NewProc("QueryContextAttributesW")
procDeleteSecurityContext = secur32dll.NewProc("DeleteSecurityContext")
procFreeContextBuffer = secur32dll.NewProc("FreeContextBuffer")
procFreeCredentialsHandle = secur32dll.NewProc("FreeCredentialsHandle")
procNetUserGetGroups = netapi32dll.NewProc("NetUserGetGroups")
)
func (w *Win32) AcquireCredentialsHandle(
principal *uint16,
_package *uint16,
credentialUse uint32,
logonId *LUID,
authData *byte,
getKeyFn uintptr,
getKeyArgument uintptr,
credHandle *CredHandle,
expiry *syscall.Filetime,
) SECURITY_STATUS {
r1, _, _ := syscall.Syscall9(
procAcquireCredentialsHandleW.Addr(), 9,
uintptr(unsafe.Pointer(principal)),
uintptr(unsafe.Pointer(_package)),
uintptr(credentialUse),
uintptr(unsafe.Pointer(logonId)),
uintptr(unsafe.Pointer(authData)),
uintptr(getKeyFn),
uintptr(getKeyArgument),
uintptr(unsafe.Pointer(credHandle)),
uintptr(unsafe.Pointer(expiry)),
)
return SECURITY_STATUS(r1)
}
func (w *Win32) AcceptSecurityContext(
credential *CredHandle,
context *CtxtHandle,
input *SecBufferDesc,
contextReq uint32,
targDataRep uint32,
newContext *CtxtHandle,
output *SecBufferDesc,
contextAttr *uint32,
expiry *syscall.Filetime,
) SECURITY_STATUS {
r1, _, _ := syscall.Syscall9(
procAcceptSecurityContext.Addr(), 9,
uintptr(unsafe.Pointer(credential)),
uintptr(unsafe.Pointer(context)),
uintptr(unsafe.Pointer(input)),
uintptr(contextReq),
uintptr(targDataRep),
uintptr(unsafe.Pointer(newContext)),
uintptr(unsafe.Pointer(output)),
uintptr(unsafe.Pointer(contextAttr)),
uintptr(unsafe.Pointer(expiry)),
)
return SECURITY_STATUS(r1)
}
func (w *Win32) QueryContextAttributes(
context *CtxtHandle,
attribute uint32,
buffer *byte,
) SECURITY_STATUS {
r1, _, _ := syscall.Syscall(
procQueryContextAttributesW.Addr(), 3,
uintptr(unsafe.Pointer(context)),
uintptr(attribute),
uintptr(unsafe.Pointer(buffer)),
)
return SECURITY_STATUS(r1)
}
func (w *Win32) DeleteSecurityContext(context *CtxtHandle) SECURITY_STATUS {
r1, _, _ := syscall.Syscall(
procDeleteSecurityContext.Addr(), 1,
uintptr(unsafe.Pointer(context)),
0, 0,
)
return SECURITY_STATUS(r1)
}
func (w *Win32) FreeContextBuffer(buffer *byte) SECURITY_STATUS {
r1, _, _ := syscall.Syscall(
procFreeContextBuffer.Addr(), 1,
uintptr(unsafe.Pointer(buffer)),
0, 0,
)
return SECURITY_STATUS(r1)
}
func (w *Win32) FreeCredentialsHandle(handle *CredHandle) SECURITY_STATUS {
r1, _, _ := syscall.Syscall(
procFreeCredentialsHandle.Addr(), 1,
uintptr(unsafe.Pointer(handle)),
0, 0,
)
return SECURITY_STATUS(r1)
}
func (w *Win32) NetUserGetGroups(
serverName *uint16,
userName *uint16,
level uint32,
buf **byte,
prefmaxlen uint32,
entriesread *uint32,
totalentries *uint32,
) (neterr error) {
r0, _, _ := syscall.Syscall9(procNetUserGetGroups.Addr(), 7, uintptr(unsafe.Pointer(serverName)), uintptr(unsafe.Pointer(userName)), uintptr(level), uintptr(unsafe.Pointer(buf)), uintptr(prefmaxlen), uintptr(unsafe.Pointer(entriesread)), uintptr(unsafe.Pointer(totalentries)), 0, 0)
if r0 != 0 {
neterr = syscall.Errno(r0)
}
return
}
func (w *Win32) NetApiBufferFree(buf *byte) (neterr error) {
return syscall.NetApiBufferFree(buf)
}