pgadapter

README

TBL Casbin Go-PG Adapter

go-casbin-pg-adapter is the Go-pg adapter for Casbin. With this library, Casbin can load policy from PostgreSQL or save policy to it.

Installation

go get github.com/tecnologiadebloques/go-casbin-pg-adapter

Simple Postgres Example

package main

import (
	pgadapter "github.com/tecnologiadebloques/go-casbin-pg-adapter"
	"github.com/casbin/casbin"
)

func main() {
	// Initialize a Go-pg 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, _ := pgadapter.NewAdapter("localhost:5432", "vanclief", "") // 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.

	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(dbAddress, dbUser, dbPassword string) (*Adapter, error)
  • func (a *Adapter) AddPolicy(sec string, ptype string, rule []string) 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) RemovePolicy(sec string, ptype string, rule []string) error
  • func (a *Adapter) SavePolicy(model model.Model) error
• type CasbinRule

Types

type Adapter

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

Adapter represents the github.com/go-pg/pg adapter for policy storage.

func NewAdapter

func NewAdapter(dbAddress, dbUser, dbPassword string) (*Adapter, error)

NewAdapter is the constructor for Adapter. The adapter will automatically create a DB named "casbin"

func (*Adapter) AddPolicy

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

AddPolicy adds a policy rule to the storage.

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) 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.

type CasbinRule

type CasbinRule struct {
	ID    int
	PType string
	V0    string
	V1    string
	V2    string
	V3    string
	V4    string
	V5    string
}

CasbinRule represents a rule in Casbin.