xormadapter

README

Xorm Adapter

Xorm Adapter is the Xorm adapter for Casbin. With this library, Casbin can load policy from Xorm supported database or save policy to it.

Based on Xorm Drivers Support, The current supported databases are:

• Mysql: github.com/go-sql-driver/mysql
• MyMysql: github.com/ziutek/mymysql/godrv
• Postgres: github.com/lib/pq
• Tidb: github.com/pingcap/tidb
• SQLite: github.com/mattn/go-sqlite3
• MsSql: github.com/denisenkom/go-mssqldb
• Oracle: github.com/mattn/go-oci8 (experiment)

Installation

go get github.com/casbin/xorm-adapter/v2

Simple MySQL Example

package main

import (
	"github.com/casbin/casbin/v2"
	_ "github.com/go-sql-driver/mysql"

	"github.com/casbin/xorm-adapter/v2"
)

func main() {
	// Initialize a Xorm adapter and use it in a Casbin enforcer:
	// The adapter will use the MySQL database named "casbin".
	// If it doesn't exist, the adapter will create it automatically.
	a, _ := xormadapter.NewAdapter("mysql", "mysql_username:mysql_password@tcp(127.0.0.1:3306)/") // Your driver and data source. 

	// Or you can use an existing DB "abc" like this:
	// The adapter will use the table named "casbin_rule".
	// If it doesn't exist, the adapter will create it automatically.
	// a := xormadapter.NewAdapter("mysql", "mysql_username:mysql_password@tcp(127.0.0.1:3306)/abc", true)

	e, _ := casbin.NewEnforcer("examples/rbac_model.conf", a)
	
	// Load the policy from DB.
	e.LoadPolicy()
	
	// Check the permission.
	e.Enforce("alice", "data1", "read")
	
	// Modify the policy.
	// e.AddPolicy(...)
	// e.RemovePolicy(...)
	
	// Save the policy back to DB.
	e.SavePolicy()
}

Simple Postgres Example

package main

import (
	"github.com/casbin/casbin/v2"
	_ "github.com/lib/pq"

	"github.com/casbin/xorm-adapter/v2"
)

func main() {
	// Initialize a Xorm adapter and use it in a Casbin enforcer:
	// The adapter will use the Postgres database named "casbin".
	// If it doesn't exist, the adapter will create it automatically.
	a, _ := xormadapter.NewAdapter("postgres", "user=postgres_username password=postgres_password host=127.0.0.1 port=5432 sslmode=disable") // Your driver and data source.

	// Or you can use an existing DB "abc" like this:
	// The adapter will use the table named "casbin_rule".
	// If it doesn't exist, the adapter will create it automatically.
	// a := xormadapter.NewAdapter("postgres", "dbname=abc user=postgres_username password=postgres_password host=127.0.0.1 port=5432 sslmode=disable", true)

	e, _ := casbin.NewEnforcer("../examples/rbac_model.conf", a)

	// Load the policy from DB.
	e.LoadPolicy()

	// Check the permission.
	e.Enforce("alice", "data1", "read")

	// Modify the policy.
	// e.AddPolicy(...)
	// e.RemovePolicy(...)

	// Save the policy back to DB.
	e.SavePolicy()
}

Getting Help

• Casbin

License

This project is under Apache 2.0 License. See the LICENSE file for the full license text.

Documentation

Index

• type Adapter
  • func NewAdapter(driverName string, dataSourceName string, dbSpecified ...bool) (*Adapter, error)
  • func NewAdapterByEngine(engine *xorm.Engine) (*Adapter, error)
  • func NewAdapterByEngineWithTableName(engine *xorm.Engine, tableName string, tablePrefix string) (*Adapter, error)
  • func NewAdapterWithTableName(driverName string, dataSourceName string, tableName string, tablePrefix string, ...) (*Adapter, error)
  • func (a *Adapter) AddPolicies(sec string, ptype string, rules [][]string) error
  • func (a *Adapter) AddPolicy(sec string, ptype string, rule []string) error
  • func (a *Adapter) IsFiltered() bool
  • func (a *Adapter) LoadFilteredPolicy(model model.Model, filter interface{}) error
  • func (a *Adapter) LoadPolicy(model model.Model) error
  • func (a *Adapter) RemoveFilteredPolicy(sec string, ptype string, fieldIndex int, fieldValues ...string) error
  • func (a *Adapter) RemovePolicies(sec string, ptype string, rules [][]string) error
  • func (a *Adapter) RemovePolicy(sec string, ptype string, rule []string) error
  • func (a *Adapter) SavePolicy(model model.Model) error
  • func (a *Adapter) UpdateFilteredPolicies(sec string, ptype string, newPolicies [][]string, fieldIndex int, ...) ([][]string, error)
  • func (a *Adapter) UpdatePolicies(sec string, ptype string, oldRules, newRules [][]string) error
  • func (a *Adapter) UpdatePolicy(sec string, ptype string, oldRule, newPolicy []string) error
• type CasbinRule
  • func (the *CasbinRule) TableName() string
• type Filter

Types

type Adapter

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

Adapter represents the Xorm adapter for policy storage.

func NewAdapter

func NewAdapter(driverName string, dataSourceName string, dbSpecified ...bool) (*Adapter, error)

NewAdapter is the constructor for Adapter. dbSpecified is an optional bool parameter. The default value is false. It's up to whether you have specified an existing DB in dataSourceName. If dbSpecified == true, you need to make sure the DB in dataSourceName exists. If dbSpecified == false, the adapter will automatically create a DB named "casbin".

func NewAdapterByEngine

func NewAdapterByEngine(engine *xorm.Engine) (*Adapter, error)

NewAdapterByEngine .

func NewAdapterByEngineWithTableName

func NewAdapterByEngineWithTableName(engine *xorm.Engine, tableName string, tablePrefix string) (*Adapter, error)

NewAdapterByEngineWithTableName .

func NewAdapterWithTableName

func NewAdapterWithTableName(driverName string, dataSourceName string, tableName string, tablePrefix string, dbSpecified ...bool) (*Adapter, error)

NewAdapterWithTableName .

func (*Adapter) AddPolicies

func (a *Adapter) AddPolicies(sec string, ptype string, rules [][]string) error

AddPolicies adds multiple policy rule to the storage.

func (*Adapter) AddPolicy

func (a *Adapter) AddPolicy(sec string, ptype string, rule []string) error

AddPolicy adds a policy rule to the storage.

func (*Adapter) IsFiltered

func (a *Adapter) IsFiltered() bool

IsFiltered returns true if the loaded policy has been filtered.

func (*Adapter) LoadFilteredPolicy

func (a *Adapter) LoadFilteredPolicy(model model.Model, filter interface{}) error

LoadFilteredPolicy loads only policy rules that match the filter.

func (*Adapter) LoadPolicy

func (a *Adapter) LoadPolicy(model model.Model) error

LoadPolicy loads policy from database.

func (*Adapter) RemoveFilteredPolicy

func (a *Adapter) RemoveFilteredPolicy(sec string, ptype string, fieldIndex int, fieldValues ...string) error

RemoveFilteredPolicy removes policy rules that match the filter from the storage.

func (*Adapter) RemovePolicies

func (a *Adapter) RemovePolicies(sec string, ptype string, rules [][]string) error

RemovePolicies removes multiple policy rule from the storage.

func (*Adapter) RemovePolicy

func (a *Adapter) RemovePolicy(sec string, ptype string, rule []string) error

RemovePolicy removes a policy rule from the storage.

func (*Adapter) SavePolicy

func (a *Adapter) SavePolicy(model model.Model) error

SavePolicy saves policy to database.

func (*Adapter) UpdateFilteredPolicies

func (a *Adapter) UpdateFilteredPolicies(sec string, ptype string, newPolicies [][]string, fieldIndex int, fieldValues ...string) ([][]string, error)

func (*Adapter) UpdatePolicies

func (a *Adapter) UpdatePolicies(sec string, ptype string, oldRules, newRules [][]string) error

UpdatePolicies updates some policy rules to storage, like db, redis.

func (*Adapter) UpdatePolicy

func (a *Adapter) UpdatePolicy(sec string, ptype string, oldRule, newPolicy []string) error

UpdatePolicy update oldRule to newPolicy permanently

type CasbinRule

type CasbinRule struct {
	Id    int64  `xorm:"pk autoincr"`
	Ptype string `xorm:"varchar(100) index not null default ''"`
	V0    string `xorm:"varchar(100) index not null default ''"`
	V1    string `xorm:"varchar(100) index not null default ''"`
	V2    string `xorm:"varchar(100) index not null default ''"`
	V3    string `xorm:"varchar(100) index not null default ''"`
	V4    string `xorm:"varchar(100) index not null default ''"`
	V5    string `xorm:"varchar(100) index not null default ''"`
	// contains filtered or unexported fields
}

func (*CasbinRule) TableName

func (the *CasbinRule) TableName() string

TableName if tableName=="" , adapter will use default tablename "casbin_rule".

type Filter

type Filter struct {
	Ptype []string
	V0    []string
	V1    []string
	V2    []string
	V3    []string
	V4    []string
	V5    []string
}

Filter .