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Update User Authentication 

* Update bindings
* Add user authentication sql functions

Reference #579
This commit is contained in:
Gert-Jan Timmer 2018-06-01 11:28:04 +02:00
parent 4a33fcc1d2
commit 0e289439a2
3 changed files with 207 additions and 47 deletions
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30
sqlite3.go
View File

@ -1292,9 +1292,7 @@ func (d *SQLiteDriver) Open(dsn string) (driver.Conn, error) {
return nil, err
}
// Register Authentication Functions into connection
//
// Register Authentication function
// Register: authenticate
// Authenticate will perform an authentication of the provided username
// and password against the database.
//
@ -1308,12 +1306,12 @@ func (d *SQLiteDriver) Open(dsn string) (driver.Conn, error) {
//
// If the SQLITE_USER table is not present in the database file, then
// this interface is a harmless no-op returnning SQLITE_OK.
if err := conn.RegisterFunc("authenticate", conn.Authenticate, false); err != nil {
if err := conn.RegisterFunc("authenticate", conn.authenticate, false); err != nil {
return nil, err
}
//
// Register AuthUserAdd
// AuthUserAdd can be used (by an admin user only)
// Register: auth_user_add
// auth_user_add can be used (by an admin user only)
// to create a new user. When called on a no-authentication-required
// database, this routine converts the database into an authentication-
// required database, automatically makes the added user an
@ -1321,25 +1319,33 @@ func (d *SQLiteDriver) Open(dsn string) (driver.Conn, error) {
// The AuthUserAdd only works for the "main" database, not
// for any ATTACH-ed databases. Any call to AuthUserAdd by a
// non-admin user results in an error.
if err := conn.RegisterFunc("auth_user_add", conn.AuthUserAdd, false); err != nil {
if err := conn.RegisterFunc("auth_user_add", conn.authUserAdd, false); err != nil {
return nil, err
}
//
// AuthUserChange can be used to change a users
// Register: auth_user_change
// auth_user_change can be used to change a users
// login credentials or admin privilege. Any user can change their own
// login credentials. Only an admin user can change another users login
// credentials or admin privilege setting. No user may change their own
// admin privilege setting.
if err := conn.RegisterFunc("auth_user_change", conn.AuthUserChange, false); err != nil {
if err := conn.RegisterFunc("auth_user_change", conn.authUserChange, false); err != nil {
return nil, err
}
//
// AuthUserDelete can be used (by an admin user only)
// Register: auth_user_delete
// auth_user_delete can be used (by an admin user only)
// to delete a user. The currently logged-in user cannot be deleted,
// which guarantees that there is always an admin user and hence that
// the database cannot be converted into a no-authentication-required
// database.
if err := conn.RegisterFunc("auth_user_delete", conn.AuthUserDelete, false); err != nil {
if err := conn.RegisterFunc("auth_user_delete", conn.authUserDelete, false); err != nil {
return nil, err
}
// Register: auth_enabled
// auth_enabled can be used to check if user authentication is enabled
if err := conn.RegisterFunc("auth_enabled", conn.authEnabled, false); err != nil {
return nil, err
}
@ -1369,7 +1375,7 @@ func (d *SQLiteDriver) Open(dsn string) (driver.Conn, error) {
}
// Check if User Authentication is Enabled
authExists := conn.AuthIsEnabled()
authExists := conn.AuthEnabled()
if !authExists {
if err := conn.AuthUserAdd(authUser, authPass, true); err != nil {
return nil, err

136
sqlite3_opt_userauth.go
View File

@ -42,7 +42,7 @@ _sqlite3_user_delete(sqlite3* db, const char* zUsername)
}
static int
_sqlite3_auth_is_enabled(sqlite3* db)
_sqlite3_auth_enabled(sqlite3* db)
{
int exists = -1;
@ -87,6 +87,26 @@ var (
// If the SQLITE_USER table is not present in the database file, then
// this interface is a harmless no-op returnning SQLITE_OK.
func (c *SQLiteConn) Authenticate(username, password string) error {
rv := c.authenticate(username, password)
switch rv {
case C.SQLITE_ERROR, C.SQLITE_AUTH:
return ErrUnauthorized
case C.SQLITE_OK:
return nil
default:
return c.lastError()
}
}
// authenticate provides the actual authentication to SQLite.
// This is not exported for usage in Go.
// It is however exported for usage within SQL by the user.
//
// Returns:
// C.SQLITE_OK (0)
// C.SQLITE_ERROR (1)
// C.SQLITE_AUTH (23)
func (c *SQLiteConn) authenticate(username, password string) int {
// Allocate C Variables
cuser := C.CString(username)
cpass := C.CString(password)
@ -97,15 +117,7 @@ func (c *SQLiteConn) Authenticate(username, password string) error {
C.free(unsafe.Pointer(cpass))
}()
rv := C._sqlite3_user_authenticate(c.db, cuser, cpass, C.int(len(password)))
if rv == C.SQLITE_AUTH {
return ErrUnauthorized
}
if rv != C.SQLITE_OK {
return c.lastError()
}
return nil
return int(C._sqlite3_user_authenticate(c.db, cuser, cpass, C.int(len(password))))
}
// AuthUserAdd can be used (by an admin user only)
@ -124,7 +136,7 @@ func (c *SQLiteConn) AuthUserAdd(username, password string, admin bool) error {
rv := c.authUserAdd(username, password, isAdmin)
switch rv {
case C.SQLITE_AUTH:
case C.SQLITE_ERROR, C.SQLITE_AUTH:
return ErrAdminRequired
case C.SQLITE_OK:
return nil
@ -133,6 +145,19 @@ func (c *SQLiteConn) AuthUserAdd(username, password string, admin bool) error {
}
}
// authUserAdd enables the User Authentication if not enabled.
// Otherwise it will add a user.
//
// When user authentication is already enabled then this function
// can only be called by an admin.
//
// This is not exported for usage in Go.
// It is however exported for usage within SQL by the user.
//
// Returns:
// C.SQLITE_OK (0)
// C.SQLITE_ERROR (1)
// C.SQLITE_AUTH (23)
func (c *SQLiteConn) authUserAdd(username, password string, admin int) int {
// Allocate C Variables
cuser := C.CString(username)
@ -158,6 +183,34 @@ func (c *SQLiteConn) AuthUserChange(username, password string, admin bool) error
isAdmin = 1
}
rv := c.authUserChange(username, password, isAdmin)
switch rv {
case C.SQLITE_ERROR, C.SQLITE_AUTH:
return ErrAdminRequired
case C.SQLITE_OK:
return nil
default:
return c.lastError()
}
}
// authUserChange allows to modify a user.
// Users can change their own password.
//
// Only admins can change passwords for other users
// and modify the admin flag.
//
// The admin flag of the current logged in user cannot be changed.
// THis ensures that their is always an admin.
//
// This is not exported for usage in Go.
// It is however exported for usage within SQL by the user.
//
// Returns:
// C.SQLITE_OK (0)
// C.SQLITE_ERROR (1)
// C.SQLITE_AUTH (23)
func (c *SQLiteConn) authUserChange(username, password string, admin int) int {
// Allocate C Variables
cuser := C.CString(username)
cpass := C.CString(password)
@ -168,15 +221,7 @@ func (c *SQLiteConn) AuthUserChange(username, password string, admin bool) error
C.free(unsafe.Pointer(cpass))
}()
rv := C._sqlite3_user_change(c.db, cuser, cpass, C.int(len(password)), C.int(isAdmin))
if rv == C.SQLITE_AUTH {
return ErrAdminRequired
}
if rv != C.SQLITE_OK {
return c.lastError()
}
return nil
return int(C._sqlite3_user_change(c.db, cuser, cpass, C.int(len(password)), C.int(admin)))
}
// AuthUserDelete can be used (by an admin user only)
@ -185,6 +230,29 @@ func (c *SQLiteConn) AuthUserChange(username, password string, admin bool) error
// the database cannot be converted into a no-authentication-required
// database.
func (c *SQLiteConn) AuthUserDelete(username string) error {
rv := c.authUserDelete(username)
switch rv {
case C.SQLITE_ERROR, C.SQLITE_AUTH:
return ErrAdminRequired
case C.SQLITE_OK:
return nil
default:
return c.lastError()
}
}
// authUserDelete can be used to delete a user.
//
// This function can only be executed by an admin.
//
// This is not exported for usage in Go.
// It is however exported for usage within SQL by the user.
//
// Returns:
// C.SQLITE_OK (0)
// C.SQLITE_ERROR (1)
// C.SQLITE_AUTH (23)
func (c *SQLiteConn) authUserDelete(username string) int {
// Allocate C Variables
cuser := C.CString(username)
@ -193,20 +261,12 @@ func (c *SQLiteConn) AuthUserDelete(username string) error {
C.free(unsafe.Pointer(cuser))
}()
rv := C._sqlite3_user_delete(c.db, cuser)
if rv == SQLITE_AUTH {
return ErrAdminRequired
}
if rv != C.SQLITE_OK {
return c.lastError()
return int(C._sqlite3_user_delete(c.db, cuser))
}
return nil
}
// Check is database is protected by user authentication
func (c *SQLiteConn) AuthIsEnabled() (exists bool) {
rv := C._sqlite3_auth_is_enabled(c.db)
// AuthEnabled checks if the database is protected by user authentication
func (c *SQLiteConn) AuthEnabled() (exists bool) {
rv := c.authEnabled()
if rv == 1 {
exists = true
}
@ -214,4 +274,16 @@ func (c *SQLiteConn) AuthIsEnabled() (exists bool) {
return
}
// authEnabled perform the actual check for user authentication.
//
// This is not exported for usage in Go.
// It is however exported for usage within SQL by the user.
//
// Returns:
// 0 - Disabled
// 1 - Enabled
func (c *SQLiteConn) authEnabled() int {
return int(C._sqlite3_auth_enabled(c.db))
}
// EOF

88
sqlite3_opt_userauth_omit.go
View File

@ -29,6 +29,19 @@ func (c *SQLiteConn) Authenticate(username, password string) error {
return nil
}
// authenticate provides the actual authentication to SQLite.
// This is not exported for usage in Go.
// It is however exported for usage within SQL by the user.
//
// Returns:
// C.SQLITE_OK (0)
// C.SQLITE_ERROR (1)
// C.SQLITE_AUTH (23)
func (c *SQLiteConn) authenticate(username, password string) int {
// NOOP
return 0
}
// AuthUserAdd can be used (by an admin user only)
// to create a new user. When called on a no-authentication-required
// database, this routine converts the database into an authentication-
@ -42,6 +55,24 @@ func (c *SQLiteConn) AuthUserAdd(username, password string, admin bool) error {
return nil
}
// authUserAdd enables the User Authentication if not enabled.
// Otherwise it will add a user.
//
// When user authentication is already enabled then this function
// can only be called by an admin.
//
// This is not exported for usage in Go.
// It is however exported for usage within SQL by the user.
//
// Returns:
// C.SQLITE_OK (0)
// C.SQLITE_ERROR (1)
// C.SQLITE_AUTH (23)
func (c *SQLiteConn) authUserAdd(username, password string, admin int) int {
// NOOP
return 0
}
// AuthUserChange can be used to change a users
// login credentials or admin privilege. Any user can change their own
// login credentials. Only an admin user can change another users login
@ -52,6 +83,27 @@ func (c *SQLiteConn) AuthUserChange(username, password string, admin bool) error
return nil
}
// authUserChange allows to modify a user.
// Users can change their own password.
//
// Only admins can change passwords for other users
// and modify the admin flag.
//
// The admin flag of the current logged in user cannot be changed.
// THis ensures that their is always an admin.
//
// This is not exported for usage in Go.
// It is however exported for usage within SQL by the user.
//
// Returns:
// C.SQLITE_OK (0)
// C.SQLITE_ERROR (1)
// C.SQLITE_AUTH (23)
func (c *SQLiteConn) authUserChange(username, password string, admin int) int {
// NOOP
return 0
}
// AuthUserDelete can be used (by an admin user only)
// to delete a user. The currently logged-in user cannot be deleted,
// which guarantees that there is always an admin user and hence that
@ -62,9 +114,39 @@ func (c *SQLiteConn) AuthUserDelete(username string) error {
return nil
}
// Check is database is protected by user authentication
func (c *SQLiteConn) AuthIsEnabled() (exists bool) {
return
// authUserDelete can be used to delete a user.
//
// This function can only be executed by an admin.
//
// This is not exported for usage in Go.
// It is however exported for usage within SQL by the user.
//
// Returns:
// C.SQLITE_OK (0)
// C.SQLITE_ERROR (1)
// C.SQLITE_AUTH (23)
func (c *SQLiteConn) authUserDelete(username string) int {
// NOOP
return 0
}
// AuthEnabled checks if the database is protected by user authentication
func (c *SQLiteConn) AuthEnabled() (exists bool) {
// NOOP
return false
}
// authEnabled perform the actual check for user authentication.
//
// This is not exported for usage in Go.
// It is however exported for usage within SQL by the user.
//
// Returns:
// 0 - Disabled
// 1 - Enabled
func (c *SQLiteConn) authEnabled() int {
// NOOP
return 0
}
// EOF