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core.clj
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core.clj
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(ns tiny-rbac.core)
(defn collify
[x]
(if (coll? x) x [x]))
(defn resources
"Get all resources from the role-set"
[role-set]
(::resources role-set #{}))
(defn resource
"Get given resource from the role-set"
[role-set resource]
(get (resources role-set) resource))
(defn actions
"Get all actions for given resource"
[role-set resource]
(get-in role-set [::actions resource] #{}))
(defn action
"Get given action for resource"
[role-set resource action]
(get (actions role-set resource) action))
(defn inherit
"Get role parents"
[role-set role]
(get-in role-set [::inherits role] #{}))
(defn roles
"Get all roles from the role-set"
[role-set]
(::roles role-set #{}))
(defn role
"Get given role from the role-set"
[role-set role]
(get (roles role-set) role))
(defn permissions
"Get permissions provided for a role for a resource and action"
([role-set {:keys [role resource action]}]
(permissions role-set role resource action #{}))
([role-set role resource action]
(permissions role-set role resource action #{}))
([role-set role resource action acc]
(->> (let [inherit (inherit role-set role)]
(cond-> (into acc (collify (get-in role-set [::roles role resource action])))
inherit (into (mapcat identity
(for [i (collify inherit)]
(permissions role-set i resource action acc))))))
(filter some?)
(into #{}))))
(defn permission
"Get given permission for a role for a resource and action"
([role-set {:keys [role resource action permission]}]
(permission role-set role resource action permission))
([role-set role resource action permission]
(get (permissions role-set role resource action) permission)))
(defn has-permission
"Checks if a role has any permission for a resource and action"
([role-set {:keys [role resource action]}]
(has-permission role-set role resource action))
([role-set role resource action]
(not (empty? (permissions role-set role resource action)))))