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https://github.com/m19c/acl

a lightweight acl manager for go.
https://github.com/m19c/acl

access-control acl go golang role

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a lightweight acl manager for go.

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# ACL

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## TL;DR;

_acl_ is a lightweight acl manager for _go_.

## Features

- Design simple & reusable roles to empower your application.
- Acquire the rights of other roles to build a powerful set of permissions.
- Resolve possible roles by examine them in an unified way.

## Example

```go
type User struct {
isAdmin bool
}

func main() {
// first of all: create a new manager instance to register all your roles in one place
manager := acl.NewManager()

// now you can use `Ensure` to guarantee that the role with the passed identifier is present
user := manager.Ensure("user").Grant("profile.edit")
// use `Grant`, `Revoke` and `AcquireFrom` to extend the right stack
editor := manager.Ensure("editor").Grant("news.list", "news.create", "news.edit").AcquireFrom(user)

// you can also use NewRole to create a Role manually
admin := acl.NewRole("admin").Grant("news.delete").AcquireFrom(editor)
// note, that you have to register the role by yourself
manager.Register(admin)

// to check if a right was granted to a role you can use:
var hasAccess bool
hasAccess = admin.Has("some.right")

// to check if at least one of the expected rights is present:
hasAccess = admin.HasOneOf("news.list", "news.create")

// ... and finally, to check that all the expected rights are present, use:
hasAccess = admin.HasAllOf("news.delete", "news.list")

// a role can be extended with an examiner to determine whether a role can be added
// to a `ResultSet`
admin.SetExaminer(func (payload interface{}) bool {
user := payload.(User)
return user.isAdmin
})

// to get a result set you can use the managers `Examine` function
rs := manager.Examine(User{isAdmin: true})

// a result set contains "Has", "HasOneOf" and "HasAllOf" as described above and...
// `GetRole` to grab specific roles from the result set
expectedRole := rs.GetRole("admin")

// you can also check if a role was added to a result set using:
if rs.HasRole("admin") {
// ...
}
}
```

## Possible enhancements

- Conditional `IsAllowed` (combine AND/OR queries into a _ConditionGroup_).