casbin

package module

v1.4.0 Latest Latest Go to latest Published: Feb 9, 2018 License: Apache-2.0 Imports: 13 Imported by: 0

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Repository

github.com/zhangpeihao/casbin

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README ¶

Casbin

News: Casbin is also started to port to Java, contribution is welcomed. See: https://github.com/casbin/jcasbin

Casbin is a powerful and efficient open-source access control library for Golang projects. It provides support for enforcing authorization based on various access control models.

Supported by Auth0

If you want to easily add authentication and authorization to your Go projects, feel free to check out Auth0's Go SDK and free plan at auth0.com/overview

Supported models

ACL (Access Control List)
ACL with superuser
ACL without users: especially useful for systems that don't have authentication or user log-ins.
ACL without resources: some scenarios may target for a type of resources instead of an individual resource by using permissions like write-article, read-log. It doesn't control the access to a specific article or log.
RBAC (Role-Based Access Control)
RBAC with resource roles: both users and resources can have roles (or groups) at the same time.
RBAC with domains/tenants: users can have different role sets for different domains/tenants.
ABAC (Attribute-Based Access Control): syntax sugar like resource.Owner can be used to get the attribute for a resource.
RESTful: supports paths like /res/*, /res/:id and HTTP methods like GET, POST, PUT, DELETE.
Deny-override: both allow and deny authorizations are supported, deny overrides the allow.
Priority: the policy rules can be prioritized like firewall rules.

How it works?

In Casbin, an access control model is abstracted into a CONF file based on the PERM metamodel (Policy, Effect, Request, Matchers). So switching or upgrading the authorization mechanism for a project is just as simple as modifying a configuration. You can customize your own access control model by combining the available models. For example, you can get RBAC roles and ABAC attributes together inside one model and share one set of policy rules.

The most basic and simplest model in Casbin is ACL. ACL's model CONF is:

# Request definition
[request_definition]
r = sub, obj, act

# Policy definition
[policy_definition]
p = sub, obj, act

# Policy effect
[policy_effect]
e = some(where (p.eft == allow))

# Matchers
[matchers]
m = r.sub == p.sub && r.obj == p.obj && r.act == p.act

An example policy for ACL model is like:

p, alice, data1, read
p, bob, data2, write

It means:

alice can read data1
bob can write data2

Features

What Casbin does:

enforce the policy in the classic {subject, object, action} form or a customized form as you defined, both allow and deny authorizations are supported.
handle the storage of the access control model and its policy.
manage the role-user mappings and role-role mappings (aka role hierarchy in RBAC).
support built-in superuser like root or administrator. A superuser can do anything without explict permissions.
multiple built-in operators to support the rule matching. For example, keyMatch can map a resource key /foo/bar to the pattern /foo*.

What Casbin does NOT do:

authentication (aka verify username and password when a user logs in)
manage the list of users or roles. I believe it's more convenient for the project itself to manage these entities. Users usually have their passwords, and Casbin is not designed as a password container. However, Casbin stores the user-role mapping for the RBAC scenario.

Installation

go get github.com/casbin/casbin

Documentation

For documentation, please see: Our Wiki

Tutorials

Get started

New a Casbin enforcer with a model file and a policy file:

e := casbin.NewEnforcer("path/to/model.conf", "path/to/policy.csv")

Note: you can also initialize an enforcer with policy in DB instead of file, see Persistence section for details.

Add an enforcement hook into your code right before the access happens:

sub := "alice" // the user that wants to access a resource.
obj := "data1" // the resource that is going to be accessed.
act := "read" // the operation that the user performs on the resource.

if e.Enforce(sub, obj, act) == true {
    // permit alice to read data1
} else {
    // deny the request, show an error
}

Besides the static policy file, Casbin also provides API for permission management at run-time. For example, You can get all the roles assigned to a user as below:
```
roles := e.GetRoles("alice")
```

See Policy management APIs for more usage.

Please refer to the _test.go files for more usage.

Policy management

Casbin provides two sets of APIs to manage permissions:

Management API: the primitive API that provides full support for Casbin policy management. See here for examples.
RBAC API: a more friendly API for RBAC. This API is a subset of Management API. The RBAC users could use this API to simplify the code. See here for examples.

We also provide a web-based UI for model management and policy management:

model editor

policy editor

Policy persistence

In Casbin, the policy storage is implemented as an adapter (aka middleware for Casbin). To keep light-weight, we don't put adapter code in the main library (except the default file adapter). A complete list of Casbin adapters is provided as below. Any 3rd-party contribution on a new adapter is welcomed, please inform us and I will put it in this list:)

Adapter	Type	Author	Description
File Adapter (built-in)	File	Casbin	Persistence for .CSV (Comma-Separated Values) files
Xorm Adapter	ORM	Casbin	MySQL, PostgreSQL, TiDB, SQLite, SQL Server, Oracle are supported by Xorm
Gorm Adapter	ORM	Casbin	MySQL, PostgreSQL, Sqlite3, SQL Server are supported by Gorm
Beego ORM Adapter	ORM	Casbin	MySQL, PostgreSQL, Sqlite3 are supported by Beego ORM
MongoDB Adapter	NoSQL	Casbin	Persistence for MongoDB
Cassandra Adapter	NoSQL	Casbin	Persistence for Apache Cassandra DB
Consul Adapter	KV store	@ankitm123	Persistence for HashiCorp Consul
Redis Adapter	KV store	Casbin	Persistence for Redis
Protobuf Adapter	Stream	Casbin	Persistence for Google Protocol Buffers
JSON Adapter	Stream	Casbin	Persistence for JSON
RQLite Adapter	SQL	EDOMO Systems	Persistence for RQLite
PostgreSQL Adapter	SQL	Going	Persistence for PostgreSQL
RethinkDB Adapter	NoSQL	@adityapandey9	Persistence for RethinkDB
DynamoDB Adapter	NoSQL	HOOQ	Persistence for Amazon DynamoDB
Minio/AWS S3 Adapter	Object storage	Soluto	Persistence for Minio and Amazon S3

For details of adapters, please refer to the documentation: https://github.com/casbin/casbin/wiki/Policy-persistence

Policy consistence between multiple nodes

We support to use distributed messaging systems like etcd to keep consistence between multiple Casbin enforcer instances. So our users can concurrently use multiple Casbin enforcers to handle large number of permission checking requests.

Similar to policy storage adapters, we don't put watcher code in the main library. Any support for a new messaging system should be implemented as a watcher. A complete list of Casbin watchers is provided as below. Any 3rd-party contribution on a new watcher is welcomed, please inform us and I will put it in this list:)

Watcher	Type	Author	Description
Etcd Watcher	KV store	Casbin	Watcher for etcd
NATS Watcher	Messaging system	Soluto	Watcher for NATS

Role manager

The role manager is used to manage the RBAC role hierarchy (user-role mapping) in Casbin. A role manager can retrieve the role data from Casbin policy rules or external sources such as LDAP, Okta, Auth0, Azure AD, etc. We support different implementations of a role manager. To keep light-weight, we don't put role manager code in the main library (except the default role manager). A complete list of Casbin role managers is provided as below. Any 3rd-party contribution on a new role manager is welcomed, please inform us and I will put it in this list:)

Role manager	Author	Description
Default Role Manager (built-in)	Casbin	Supports role hierarchy
Session Role Manager	EDOMO Systems	Supports role hierarchy, time-range-based sessions

For developers: all role managers must implement the RoleManager interface. Session Role Manager can be used as a reference implementation.

Multi-threading

If you use Casbin in a multi-threading manner, you can use the synchronized wrapper of the Casbin enforcer: https://github.com/casbin/casbin/blob/master/enforcer_synced.go.

It also supports the AutoLoad feature, which means the Casbin enforcer will automatically load the latest policy rules from DB if it has changed. Call StartAutoLoadPolicy() to start automatically loading policy periodically and call StopAutoLoadPolicy() to stop it.

Benchmarks

The overhead of policy enforcement is benchmarked in model_b_test.go. The testbed is:

Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz, 2601 Mhz, 4 Core(s), 8 Logical Processor(s)

The benchmarking result of go test -bench=. -benchmem is as follows (op = an Enforce() call, ms = millisecond, KB = kilo bytes):

Test case	Size	Time overhead	Memory overhead
ACL	2 rules (2 users)	0.015493 ms/op	5.649 KB
RBAC	5 rules (2 users, 1 role)	0.021738 ms/op	7.522 KB
RBAC (small)	1100 rules (1000 users, 100 roles)	0.164309 ms/op	80.620 KB
RBAC (medium)	11000 rules (10000 users, 1000 roles)	2.258262 ms/op	765.152 KB
RBAC (large)	110000 rules (100000 users, 10000 roles)	23.916776 ms/op	7.606 MB
RBAC with resource roles	6 rules (2 users, 2 roles)	0.021146 ms/op	7.906 KB
RBAC with domains/tenants	6 rules (2 users, 1 role, 2 domains)	0.032696 ms/op	10.755 KB
ABAC	0 rule (0 user)	0.007510 ms/op	2.328 KB
RESTful	5 rules (3 users)	0.045398 ms/op	91.774 KB
Deny-override	6 rules (2 users, 1 role)	0.023281 ms/op	8.370 KB
Priority	9 rules (2 users, 2 roles)	0.016389 ms/op	5.313 KB

Examples

Model	Model file	Policy file
ACL	basic_model.conf	basic_policy.csv
ACL with superuser	basic_model_with_root.conf	basic_policy.csv
ACL without users	basic_model_without_users.conf	basic_policy_without_users.csv
ACL without resources	basic_model_without_resources.conf	basic_policy_without_resources.csv
RBAC	rbac_model.conf	rbac_policy.csv
RBAC with resource roles	rbac_model_with_resource_roles.conf	rbac_policy_with_resource_roles.csv
RBAC with domains/tenants	rbac_model_with_domains.conf	rbac_policy_with_domains.csv
ABAC	abac_model.conf	N/A
RESTful	keymatch_model.conf	keymatch_policy.csv
Deny-override	rbac_model_with_deny.conf	rbac_policy_with_deny.csv
Priority	priority_model.conf	priority_policy.csv

How to use Casbin as a service?

Go-Simple-API-Gateway: A simple API gateway written by golang, supports for authentication and authorization
Casbin Server: Casbin as a Service via RESTful, only exposed permission checking API
middleware-acl: RESTful access control middleware based on Casbin

Our adopters

Web frameworks

Beego: An open-source, high-performance web framework for Go, via built-in plugin: plugins/authz
Caddy: Fast, cross-platform HTTP/2 web server with automatic HTTPS, via plugin: caddy-authz
Gin: A HTTP web framework featuring a Martini-like API with much better performance, via plugin: authz
Revel: A high productivity, full-stack web framework for the Go language, via plugin: auth/casbin
Echo: High performance, minimalist Go web framework, via plugin: echo-authz (thanks to @xqbumu)
Iris: The fastest web framework for Go in (THIS) Earth. HTTP/2 Ready-To-GO, via plugin: casbin (thanks to @hiveminded)
Negroni: Idiomatic HTTP Middleware for Golang, via plugin: negroni-authz
Tango: Micro & pluggable web framework for Go, via plugin: authz
Chi: A lightweight, idiomatic and composable router for building HTTP services, via plugin: chi-authz
Macaron: A high productive and modular web framework in Go, via plugin: authz
DotWeb: Simple and easy go web micro framework, via plugin: authz
Baa: An express Go web framework with routing, middleware, dependency injection and http context, via plugin: authz

Others

Intel RMD: Intel's resource management daemon, via direct integration, see: model, policy rules
Docker: The world's leading software container platform, via plugin: casbin-authz-plugin (recommended by Docker)
Gobis: Orange's lightweight API Gateway written in go, via plugin: casbin, see model (in text), policy rules (from request)
Zenpress: A CMS system written in Golang, via direct integration, see: model, policy rules (in Gorm)
EngineerCMS: A CMS to manage knowledge for engineers, via direct integration, see: model, policy rules (in SQLite)
Cyber Auth API: A Golang authentication API project, via direct integration, see: model, policy rules
IRIS Community: Website for IRIS Community Activities, via direct integration, see: model, policy rules
Metadata DB: BB archive metadata database, via direct integration, see: model, policy rules

License

This project is licensed under the Apache 2.0 license.

Contact

If you have any issues or feature requests, please contact us. PR is welcomed.

Donation

Alipay Wechat

Documentation ¶

Index ¶

func NewModel(text ...string) model.Model
type Effect
type Enforcer
- func NewEnforcer(params ...interface{}) *Enforcer
- func NewEnforcerSafe(params ...interface{}) (e *Enforcer, err error)
type SyncedEnforcer
- func NewSyncedEnforcer(params ...interface{}) *SyncedEnforcer

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func NewModel ¶ added in v0.8.0

func NewModel(text ...string) model.Model

NewModel creates a model.

Types ¶

type Effect ¶ added in v0.2.0

type Effect int

Effect is the result for a policy rule.

const (
	EffectAllow Effect = iota
	EffectIndeterminate
	EffectDeny
)

Values for policy effect.

type Enforcer ¶

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

Enforcer is the main interface for authorization enforcement and policy management.

func NewEnforcer ¶ added in v0.0.5

func NewEnforcer(params ...interface{}) *Enforcer

NewEnforcer creates an enforcer via file or DB. File: e := casbin.NewEnforcer("path/to/basic_model.conf", "path/to/basic_policy.conf") MySQL DB: a := mysqladapter.NewDBAdapter("mysql", "mysql_username:mysql_password@tcp(127.0.0.1:3306)/") e := casbin.NewEnforcer("path/to/basic_model.conf", a)

func NewEnforcerSafe ¶ added in v0.3.0

func NewEnforcerSafe(params ...interface{}) (e *Enforcer, err error)

NewEnforcerSafe calls NewEnforcer in a safe way, returns error instead of causing panic.

func (*Enforcer) AddFunction ¶ added in v0.0.6

func (e *Enforcer) AddFunction(ptype string, function func(args ...interface{}) (interface{}, error))

AddFunction adds a customized function.

func (*Enforcer) AddGroupingPolicy ¶ added in v0.0.2

func (e *Enforcer) AddGroupingPolicy(params ...interface{}) bool

AddGroupingPolicy adds a role inheritance rule to the current policy. If the rule already exists, the function returns false and the rule will not be added. Otherwise the function returns true by adding the new rule.

func (*Enforcer) AddNamedGroupingPolicy ¶ added in v1.1.0

func (e *Enforcer) AddNamedGroupingPolicy(ptype string, params ...interface{}) bool

AddNamedGroupingPolicy adds a named role inheritance rule to the current policy. If the rule already exists, the function returns false and the rule will not be added. Otherwise the function returns true by adding the new rule.

func (*Enforcer) AddNamedPolicy ¶ added in v1.1.0

func (e *Enforcer) AddNamedPolicy(ptype string, params ...interface{}) bool

AddNamedPolicy adds an authorization rule to the current named policy. If the rule already exists, the function returns false and the rule will not be added. Otherwise the function returns true by adding the new rule.

func (*Enforcer) AddPermissionForUser ¶ added in v0.0.5

func (e *Enforcer) AddPermissionForUser(user string, permission ...string) bool

AddPermissionForUser adds a permission for a user or role. Returns false if the user or role already has the permission (aka not affected).

func (*Enforcer) AddPolicy ¶ added in v0.0.2

func (e *Enforcer) AddPolicy(params ...interface{}) bool

AddPolicy adds an authorization rule to the current policy. If the rule already exists, the function returns false and the rule will not be added. Otherwise the function returns true by adding the new rule.

func (*Enforcer) AddPolicySafe ¶ added in v1.3.0

func (e *Enforcer) AddPolicySafe(params ...interface{}) (result bool, err error)

func (*Enforcer) AddRoleForUser ¶ added in v0.0.5

func (e *Enforcer) AddRoleForUser(user string, role string) bool

AddRoleForUser adds a role for a user. Returns false if the user already has the role (aka not affected).

func (*Enforcer) AddRoleForUserInDomain ¶ added in v1.0.0

func (e *Enforcer) AddRoleForUserInDomain(user string, role string, domain string) bool

AddRoleForUserInDomain adds a role for a user inside a domain. Returns false if the user already has the role (aka not affected).

func (*Enforcer) BuildRoleLinks ¶ added in v1.1.0

func (e *Enforcer) BuildRoleLinks()

BuildRoleLinks manually rebuild the role inheritance relations.

func (*Enforcer) ClearPolicy ¶ added in v0.0.5

func (e *Enforcer) ClearPolicy()

ClearPolicy clears all policy.

func (*Enforcer) DeletePermission ¶ added in v0.0.5

func (e *Enforcer) DeletePermission(permission ...string) bool

DeletePermission deletes a permission. Returns false if the permission does not exist (aka not affected).

func (*Enforcer) DeletePermissionForUser ¶ added in v0.6.0

func (e *Enforcer) DeletePermissionForUser(user string, permission ...string) bool

DeletePermissionForUser deletes a permission for a user or role. Returns false if the user or role does not have the permission (aka not affected).

func (*Enforcer) DeletePermissionsForUser ¶ added in v0.0.5

func (e *Enforcer) DeletePermissionsForUser(user string) bool

DeletePermissionsForUser deletes permissions for a user or role. Returns false if the user or role does not have any permissions (aka not affected).

func (*Enforcer) DeleteRole ¶ added in v0.0.5

func (e *Enforcer) DeleteRole(role string)

DeleteRole deletes a role.

func (*Enforcer) DeleteRoleForUser ¶ added in v0.6.0

func (e *Enforcer) DeleteRoleForUser(user string, role string) bool

DeleteRoleForUser deletes a role for a user. Returns false if the user does not have the role (aka not affected).

func (*Enforcer) DeleteRoleForUserInDomain ¶ added in v1.0.0

func (e *Enforcer) DeleteRoleForUserInDomain(user string, role string, domain string) bool

DeleteRoleForUserInDomain deletes a role for a user inside a domain. Returns false if the user does not have the role (aka not affected).

func (*Enforcer) DeleteRolesForUser ¶ added in v0.0.5

func (e *Enforcer) DeleteRolesForUser(user string) bool

DeleteRolesForUser deletes all roles for a user. Returns false if the user does not have any roles (aka not affected).

func (*Enforcer) DeleteUser ¶ added in v0.0.5

func (e *Enforcer) DeleteUser(user string) bool

DeleteUser deletes a user. Returns false if the user does not exist (aka not affected).

func (*Enforcer) EnableAutoBuildRoleLinks ¶ added in v1.1.0

func (e *Enforcer) EnableAutoBuildRoleLinks(autoBuildRoleLinks bool)

EnableAutoBuildRoleLinks controls whether to rebuild the role inheritance relations when a role is added or deleted.

func (*Enforcer) EnableAutoSave ¶ added in v0.10.0

func (e *Enforcer) EnableAutoSave(autoSave bool)

EnableAutoSave controls whether to save a policy rule automatically to the adapter when it is added or removed.

func (*Enforcer) EnableEnforce ¶ added in v0.10.0

func (e *Enforcer) EnableEnforce(enable bool)

EnableEnforce changes the enforcing state of Casbin, when Casbin is disabled, all access will be allowed by the Enforce() function.

func (*Enforcer) EnableLog ¶ added in v0.6.0

func (e *Enforcer) EnableLog(enable bool)

EnableLog changes whether to print Casbin log to the standard output.

func (*Enforcer) Enforce ¶ added in v0.0.2

func (e *Enforcer) Enforce(rvals ...interface{}) bool

Enforce decides whether a "subject" can access a "object" with the operation "action", input parameters are usually: (sub, obj, act).

func (*Enforcer) EnforceSafe ¶ added in v0.3.0

func (e *Enforcer) EnforceSafe(rvals ...interface{}) (result bool, err error)

EnforceSafe calls Enforce in a safe way, returns error instead of causing panic.

func (*Enforcer) GetAdapter ¶ added in v0.8.0

func (e *Enforcer) GetAdapter() persist.Adapter

GetAdapter gets the current adapter.

func (*Enforcer) GetAllActions ¶ added in v0.0.2

func (e *Enforcer) GetAllActions() []string

GetAllActions gets the list of actions that show up in the current policy.

func (*Enforcer) GetAllNamedActions ¶ added in v1.1.0

func (e *Enforcer) GetAllNamedActions(ptype string) []string

GetAllNamedActions gets the list of actions that show up in the current named policy.

func (*Enforcer) GetAllNamedObjects ¶ added in v1.1.0

func (e *Enforcer) GetAllNamedObjects(ptype string) []string

GetAllNamedObjects gets the list of objects that show up in the current named policy.

func (*Enforcer) GetAllNamedRoles ¶ added in v1.1.0

func (e *Enforcer) GetAllNamedRoles(ptype string) []string

GetAllNamedRoles gets the list of roles that show up in the current named policy.

func (*Enforcer) GetAllNamedSubjects ¶ added in v1.1.0

func (e *Enforcer) GetAllNamedSubjects(ptype string) []string

GetAllNamedSubjects gets the list of subjects that show up in the current named policy.

func (*Enforcer) GetAllObjects ¶ added in v0.0.2

func (e *Enforcer) GetAllObjects() []string

GetAllObjects gets the list of objects that show up in the current policy.

func (*Enforcer) GetAllRoles ¶ added in v0.0.2

func (e *Enforcer) GetAllRoles() []string

GetAllRoles gets the list of roles that show up in the current policy.

func (*Enforcer) GetAllSubjects ¶ added in v0.0.2

func (e *Enforcer) GetAllSubjects() []string

GetAllSubjects gets the list of subjects that show up in the current policy.

func (*Enforcer) GetFilteredGroupingPolicy ¶ added in v0.9.0

func (e *Enforcer) GetFilteredGroupingPolicy(fieldIndex int, fieldValues ...string) [][]string

GetFilteredGroupingPolicy gets all the role inheritance rules in the policy, field filters can be specified.

func (*Enforcer) GetFilteredNamedGroupingPolicy ¶ added in v1.1.0

func (e *Enforcer) GetFilteredNamedGroupingPolicy(ptype string, fieldIndex int, fieldValues ...string) [][]string

GetFilteredNamedGroupingPolicy gets all the role inheritance rules in the policy, field filters can be specified.

func (*Enforcer) GetFilteredNamedPolicy ¶ added in v1.1.0

func (e *Enforcer) GetFilteredNamedPolicy(ptype string, fieldIndex int, fieldValues ...string) [][]string

GetFilteredNamedPolicy gets all the authorization rules in the named policy, field filters can be specified.

func (*Enforcer) GetFilteredPolicy ¶ added in v0.0.2

func (e *Enforcer) GetFilteredPolicy(fieldIndex int, fieldValues ...string) [][]string

GetFilteredPolicy gets all the authorization rules in the policy, field filters can be specified.

func (*Enforcer) GetGroupingPolicy ¶ added in v0.0.2

func (e *Enforcer) GetGroupingPolicy() [][]string

GetGroupingPolicy gets all the role inheritance rules in the policy.

func (*Enforcer) GetModel ¶ added in v0.0.5

func (e *Enforcer) GetModel() model.Model

GetModel gets the current model.

func (*Enforcer) GetNamedGroupingPolicy ¶ added in v1.1.0

func (e *Enforcer) GetNamedGroupingPolicy(ptype string) [][]string

GetNamedGroupingPolicy gets all the role inheritance rules in the policy.

func (*Enforcer) GetNamedPolicy ¶ added in v1.1.0

func (e *Enforcer) GetNamedPolicy(ptype string) [][]string

GetNamedPolicy gets all the authorization rules in the named policy.

func (*Enforcer) GetPermissionsForUser ¶ added in v0.0.5

func (e *Enforcer) GetPermissionsForUser(user string) [][]string

GetPermissionsForUser gets permissions for a user or role.

func (*Enforcer) GetPermissionsForUserInDomain ¶ added in v1.0.0

func (e *Enforcer) GetPermissionsForUserInDomain(user string, domain string) [][]string

GetPermissionsForUserInDomain gets permissions for a user or role inside a domain.

func (*Enforcer) GetPolicy ¶ added in v0.0.2

func (e *Enforcer) GetPolicy() [][]string

GetPolicy gets all the authorization rules in the policy.

func (*Enforcer) GetRolesForUser ¶ added in v0.0.5

func (e *Enforcer) GetRolesForUser(name string) []string

GetRolesForUser gets the roles that a user has.

func (*Enforcer) GetRolesForUserInDomain ¶ added in v1.0.0

func (e *Enforcer) GetRolesForUserInDomain(name string, domain string) []string

GetRolesForUserInDomain gets the roles that a user has inside a domain.

func (*Enforcer) GetUsersForRole ¶ added in v0.7.0

func (e *Enforcer) GetUsersForRole(name string) []string

GetUsersForRole gets the users that has a role.

func (*Enforcer) HasGroupingPolicy ¶ added in v0.6.0

func (e *Enforcer) HasGroupingPolicy(params ...interface{}) bool

HasGroupingPolicy determines whether a role inheritance rule exists.

func (*Enforcer) HasNamedGroupingPolicy ¶ added in v1.1.0

func (e *Enforcer) HasNamedGroupingPolicy(ptype string, params ...interface{}) bool

HasNamedGroupingPolicy determines whether a named role inheritance rule exists.

func (*Enforcer) HasNamedPolicy ¶ added in v1.1.0

func (e *Enforcer) HasNamedPolicy(ptype string, params ...interface{}) bool

HasNamedPolicy determines whether a named authorization rule exists.

func (*Enforcer) HasPermissionForUser ¶ added in v0.6.0

func (e *Enforcer) HasPermissionForUser(user string, permission ...string) bool

HasPermissionForUser determines whether a user has a permission.

func (*Enforcer) HasPolicy ¶ added in v0.6.0

func (e *Enforcer) HasPolicy(params ...interface{}) bool

HasPolicy determines whether an authorization rule exists.

func (*Enforcer) HasRoleForUser ¶ added in v0.6.0

func (e *Enforcer) HasRoleForUser(name string, role string) bool

HasRoleForUser determines whether a user has a role.

func (*Enforcer) InitWithAdapter ¶ added in v0.0.5

func (e *Enforcer) InitWithAdapter(modelPath string, adapter persist.Adapter)

InitWithAdapter initializes an enforcer with a database adapter.

func (*Enforcer) InitWithFile ¶ added in v0.0.5

func (e *Enforcer) InitWithFile(modelPath string, policyPath string)

InitWithFile initializes an enforcer with a model file and a policy file.

func (*Enforcer) InitWithModelAndAdapter ¶ added in v0.8.0

func (e *Enforcer) InitWithModelAndAdapter(m model.Model, adapter persist.Adapter)

InitWithModelAndAdapter initializes an enforcer with a model and a database adapter.

func (*Enforcer) LoadModel ¶ added in v0.0.5

func (e *Enforcer) LoadModel()

LoadModel reloads the model from the model CONF file. Because the policy is attached to a model, so the policy is invalidated and needs to be reloaded by calling LoadPolicy().

func (*Enforcer) LoadModelSafe ¶ added in v0.3.0

func (e *Enforcer) LoadModelSafe() (err error)

LoadModelSafe calls LoadModel in a safe way, returns error instead of causing panic.

func (*Enforcer) LoadPolicy ¶ added in v0.0.2

func (e *Enforcer) LoadPolicy() error

LoadPolicy reloads the policy from file/database.

func (*Enforcer) RemoveFilteredGroupingPolicy ¶ added in v0.0.5

func (e *Enforcer) RemoveFilteredGroupingPolicy(fieldIndex int, fieldValues ...string) bool

RemoveFilteredGroupingPolicy removes a role inheritance rule from the current policy, field filters can be specified.

func (*Enforcer) RemoveFilteredNamedGroupingPolicy ¶ added in v1.1.0

func (e *Enforcer) RemoveFilteredNamedGroupingPolicy(ptype string, fieldIndex int, fieldValues ...string) bool

RemoveFilteredNamedGroupingPolicy removes a role inheritance rule from the current named policy, field filters can be specified.

func (*Enforcer) RemoveFilteredNamedPolicy ¶ added in v1.1.0

func (e *Enforcer) RemoveFilteredNamedPolicy(ptype string, fieldIndex int, fieldValues ...string) bool

RemoveFilteredNamedPolicy removes an authorization rule from the current named policy, field filters can be specified.

func (*Enforcer) RemoveFilteredPolicy ¶ added in v0.0.5

func (e *Enforcer) RemoveFilteredPolicy(fieldIndex int, fieldValues ...string) bool

RemoveFilteredPolicy removes an authorization rule from the current policy, field filters can be specified.

func (*Enforcer) RemoveFilteredPolicySafe ¶ added in v1.3.0

func (e *Enforcer) RemoveFilteredPolicySafe(fieldIndex int, fieldValues ...string) (result bool, err error)

func (*Enforcer) RemoveGroupingPolicy ¶ added in v0.0.2

func (e *Enforcer) RemoveGroupingPolicy(params ...interface{}) bool

RemoveGroupingPolicy removes a role inheritance rule from the current policy.

func (*Enforcer) RemoveNamedGroupingPolicy ¶ added in v1.1.0

func (e *Enforcer) RemoveNamedGroupingPolicy(ptype string, params ...interface{}) bool

RemoveNamedGroupingPolicy removes a role inheritance rule from the current named policy.

func (*Enforcer) RemoveNamedPolicy ¶ added in v1.1.0

func (e *Enforcer) RemoveNamedPolicy(ptype string, params ...interface{}) bool

RemoveNamedPolicy removes an authorization rule from the current named policy.

func (*Enforcer) RemovePolicy ¶ added in v0.0.2

func (e *Enforcer) RemovePolicy(params ...interface{}) bool

RemovePolicy removes an authorization rule from the current policy.

func (*Enforcer) RemovePolicySafe ¶ added in v1.3.0

func (e *Enforcer) RemovePolicySafe(params ...interface{}) (result bool, err error)

func (*Enforcer) SavePolicy ¶ added in v0.0.2

func (e *Enforcer) SavePolicy() error

SavePolicy saves the current policy (usually after changed with Casbin API) back to file/database.

func (*Enforcer) SetAdapter ¶ added in v0.8.0

func (e *Enforcer) SetAdapter(adapter persist.Adapter)

SetAdapter sets the current adapter.

func (*Enforcer) SetModel ¶ added in v0.7.0

func (e *Enforcer) SetModel(m model.Model)

SetModel sets the current model.

func (*Enforcer) SetRoleManager ¶ added in v1.0.0

func (e *Enforcer) SetRoleManager(rm rbac.RoleManager)

SetRoleManager sets the current role manager.

func (*Enforcer) SetWatcher ¶ added in v1.2.0

func (e *Enforcer) SetWatcher(watcher persist.Watcher)

SetWatcher sets the current watcher.

type SyncedEnforcer ¶ added in v1.1.0

type SyncedEnforcer struct {
	*Enforcer
	// contains filtered or unexported fields
}

func NewSyncedEnforcer ¶ added in v1.1.0

func NewSyncedEnforcer(params ...interface{}) *SyncedEnforcer

NewEnforcer creates a synchronized enforcer via file or DB.

func (*SyncedEnforcer) AddGroupingPolicy ¶ added in v1.1.0

func (e *SyncedEnforcer) AddGroupingPolicy(params ...interface{}) bool