auth

package
v0.0.3 Latest Latest
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 Go to latest Published: Mar 19, 2026 License: MIT Imports: 11 Imported by: 0

Documentation

Overview

Package auth provides authentication and authorization for XxSql.

Index

Constants

This section is empty.

Variables

View Source 
var RolePermissions = map[UserRole]Permission{
	RoleAdmin: PermManageUsers | PermManageConfig | PermStartStop |
		PermCreateTable | PermDropTable | PermCreateDatabase | PermDropDatabase |
		PermSelect | PermInsert | PermUpdate | PermDelete |
		PermCreateIndex | PermDropIndex | PermBackup | PermRestore,
	RoleUser: PermSelect | PermInsert | PermUpdate | PermDelete,
}

RolePermissions maps roles to their permissions.

Functions

This section is empty.

Types

type DatabasePrivilege 

type DatabasePrivilege struct {
	Database string
	Select   bool
	Insert   bool
	Update   bool
	Delete   bool
	Create   bool
	Drop     bool
	Index    bool
	Alter    bool
}

DatabasePrivilege represents privileges on all tables in a database.

func (*DatabasePrivilege) HasPrivilege 

func (d *DatabasePrivilege) HasPrivilege(perm Permission) bool

HasPrivilege checks if a database privilege has a specific permission.

type GlobalPrivilege 

type GlobalPrivilege struct {
	Select bool
	Insert bool
	Update bool
	Delete bool
	Create bool
	Drop   bool
	Index  bool
	Alter  bool
	Grant  bool // WITH GRANT OPTION
}

GlobalPrivilege represents global privileges.

func (*GlobalPrivilege) HasPermission 

func (g *GlobalPrivilege) HasPermission(perm Permission) bool

HasPermission checks if a global privilege has a specific permission.

type Manager 

type Manager struct {
	// contains filtered or unexported fields
}

Manager manages users and sessions.

func NewManager 

func NewManager(opts ...ManagerOption) *Manager

NewManager creates a new auth manager.

func (*Manager) Authenticate 

func (m *Manager) Authenticate(username, password string) (*Session, error)

Authenticate authenticates a user and creates a session.

func (*Manager) ChangePassword 

func (m *Manager) ChangePassword(username, oldPassword, newPassword string) error

ChangePassword changes a user's password.

func (*Manager) CheckPermission 

func (m *Manager) CheckPermission(username string, perm Permission) (bool, error)

CheckPermission checks if a user has a specific permission.

func (*Manager) CheckTablePermission 

func (m *Manager) CheckTablePermission(username, database, table string, perm Permission) bool

CheckTablePermission checks if a user has a specific permission on a table.

func (*Manager) CleanupExpiredSessions 

func (m *Manager) CleanupExpiredSessions() int

CleanupExpiredSessions removes expired sessions.

func (*Manager) CreateUser 

func (m *Manager) CreateUser(username, password string, role UserRole) (*User, error)

CreateUser creates a new user.

func (*Manager) DeleteUser 

func (m *Manager) DeleteUser(username string) error

DeleteUser deletes a user.

func (*Manager) GetGrants 

func (m *Manager) GetGrants(username string) ([]string, error)

GetGrants returns all grants for a user.

func (*Manager) GetMySQLAuthHash 

func (m *Manager) GetMySQLAuthHash(username string) ([]byte, error)

GetMySQLAuthHash returns the MySQL auth hash for a user.

func (*Manager) GetUser 

func (m *Manager) GetUser(username string) (*User, error)

GetUser retrieves a user by username.

func (*Manager) GetUserByID 

func (m *Manager) GetUserByID(id uint64) (*User, error)

GetUserByID retrieves a user by ID.

func (*Manager) GrantDatabase 

func (m *Manager) GrantDatabase(username, database string, priv *DatabasePrivilege) error

GrantDatabase grants database-level privileges to a user.

func (*Manager) GrantGlobal 

func (m *Manager) GrantGlobal(username string, priv *GlobalPrivilege) error

GrantGlobal grants global privileges to a user.

func (*Manager) GrantTable 

func (m *Manager) GrantTable(username, database, table string, priv *TablePrivilege) error

GrantTable grants table-level privileges to a user.

func (*Manager) InvalidateSession 

func (m *Manager) InvalidateSession(sessionID string)

InvalidateSession invalidates a session.

func (*Manager) ListUsers 

func (m *Manager) ListUsers() []*User

ListUsers lists all users.

func (*Manager) Load 

func (m *Manager) Load() error

Load loads users from the persistence file.

func (*Manager) LoadGrants 

func (m *Manager) LoadGrants() error

LoadGrants loads grants from the persistence file.

func (*Manager) RefreshSession 

func (m *Manager) RefreshSession(sessionID string) (*Session, error)

RefreshSession refreshes a session's expiration time.

func (*Manager) RevokeDatabase 

func (m *Manager) RevokeDatabase(username, database string, priv *DatabasePrivilege) error

RevokeDatabase revokes database-level privileges from a user.

func (*Manager) RevokeGlobal 

func (m *Manager) RevokeGlobal(username string, priv *GlobalPrivilege) error

RevokeGlobal revokes global privileges from a user.

func (*Manager) RevokeTable 

func (m *Manager) RevokeTable(username, database, table string, priv *TablePrivilege) error

RevokeTable revokes table-level privileges from a user.

func (*Manager) Save 

func (m *Manager) Save() error

Save saves users to the persistence file.

func (*Manager) SaveGrants 

func (m *Manager) SaveGrants() error

SaveGrants saves grants to the persistence file.

func (*Manager) SetUserDatabase 

func (m *Manager) SetUserDatabase(sessionID, database string) error

SetUserDatabase sets the database for a session.

func (*Manager) ValidateSession 

func (m *Manager) ValidateSession(sessionID string) (*Session, error)

ValidateSession validates a session and returns it if valid.

func (*Manager) VerifyMySQLAuth 

func (m *Manager) VerifyMySQLAuth(username string, salt, authResponse []byte) (bool, error)

VerifyMySQLAuth verifies MySQL native password authentication. The client sends: SHA1(password) XOR SHA1(salt + SHA1(SHA1(password))) We have stored: SHA1(SHA1(password))

type ManagerOption 

type ManagerOption func(*Manager)

ManagerOption is a functional option for Manager.

func WithDataDir 

func WithDataDir(dir string) ManagerOption

WithDataDir sets the data directory for persistence.

func WithSessionTTL 

func WithSessionTTL(ttl time.Duration) ManagerOption

WithSessionTTL sets the session TTL.

type Permission 

type Permission uint32

Permission represents a permission bit. 

const (
	PermManageUsers Permission = 1 << iota
	PermManageConfig
	PermStartStop
	PermCreateTable
	PermDropTable
	PermCreateDatabase
	PermDropDatabase
	PermSelect
	PermInsert
	PermUpdate
	PermDelete
	PermCreateIndex
	PermDropIndex
	PermBackup
	PermRestore
)

type PermissionChecker 

type PermissionChecker struct {
	// contains filtered or unexported fields
}

PermissionChecker provides permission checking for a session.

func NewPermissionChecker 

func NewPermissionChecker(session *Session) *PermissionChecker

NewPermissionChecker creates a new permission checker.

func (*PermissionChecker) Check 

func (p *PermissionChecker) Check(perm Permission) bool

Check checks if the session has the given permission.

func (*PermissionChecker) Require 

func (p *PermissionChecker) Require(perm Permission) error

Require checks the permission and returns an error if not granted.

type Session 

type Session struct {
	ID        string
	UserID    uint64
	Username  string
	Role      UserRole
	CreatedAt time.Time
	ExpiresAt time.Time
	Database  string
}

Session represents an authenticated session.

func (*Session) HasPermission 

func (s *Session) HasPermission(perm Permission) bool

HasPermission checks if the session has the given permission.

func (*Session) IsExpired 

func (s *Session) IsExpired() bool

IsExpired checks if the session is expired.

type TablePrivilege 

type TablePrivilege struct {
	Database string
	Table    string
	Select   bool
	Insert   bool
	Update   bool
	Delete   bool
	Create   bool
	Drop     bool
	Index    bool
	Alter    bool
}

TablePrivilege represents privileges on a specific table.

func (*TablePrivilege) HasPrivilege 

func (t *TablePrivilege) HasPrivilege(perm Permission) bool

HasPrivilege checks if a specific privilege is granted.

type User 

type User struct {
	ID            uint64
	Username      string
	PasswordHash  string // bcrypt hash for internal auth
	MySQLAuthHash []byte // SHA1(SHA1(password)) for MySQL native auth
	Role          UserRole
	CreatedAt     time.Time
	UpdatedAt     time.Time
}

User represents a database user.

type UserRole 

type UserRole int

UserRole represents a user's role. 

const (
	RoleAdmin UserRole = iota
	RoleUser
)

func (UserRole) String 

func (r UserRole) String() string

String returns the string representation of the role.

Source Files

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