RBAC with Conditions

Gestione Ruoli Condizionale

ConditionalRoleManager supporta funzioni condizionali personalizzate a livello di policy.

Ad esempio, quando abbiamo bisogno di una policy di ruolo temporanea, possiamo seguire l'approccio seguente:

model.conf

[request_definition]
r = sub, obj, act

[policy_definition]
p = sub, obj, act

[role_definition]
g = _, _, (_, _)

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

[matchers]
m = g(r.sub, p.sub) && r.obj == p.obj && r.act == p.act

g = _, _, (_, _) utilizza (_, _) per contenere una lista di argomenti da passare alla funzione condizionale

policy.csv

p, alice, data1, read
p, data2_admin, data2, write
p, data3_admin, data3, read
p, data4_admin, data4, write
p, data5_admin, data5, read
p, data6_admin, data6, write
p, data7_admin, data7, read
p, data8_admin, data8, write

g, alice, data2_admin, 0000-01-01 00:00:00, 0000-01-02 00:00:00
g, alice, data3_admin, 0000-01-01 00:00:00, 9999-12-30 00:00:00
g, alice, data4_admin, _, _
g, alice, data5_admin, _, 9999-12-30 00:00:00
g, alice, data6_admin, _, 0000-01-02 00:00:00
g, alice, data7_admin, 0000-01-01 00:00:00, _
g, alice, data8_admin, 9999-12-30 00:00:00, _

Utilizzo Base

Aggiungi una funzione condizionale per la policy di ruolo (g tipo policy) attraverso AddNamedLinkConditionFunc, Se la verifica passa, allora la policy di ruolo corrispondente (g tipo policy) è valida, altrimenti non è valida

e.AddNamedLinkConditionFunc("g", "alice", "data2_admin", util.TimeMatchFunc)
e.AddNamedLinkConditionFunc("g", "alice", "data3_admin", util.TimeMatchFunc)
e.AddNamedLinkConditionFunc("g", "alice", "data4_admin", util.TimeMatchFunc)
e.AddNamedLinkConditionFunc("g", "alice", "data5_admin", util.TimeMatchFunc)
e.AddNamedLinkConditionFunc("g", "alice", "data6_admin", util.TimeMatchFunc)
e.AddNamedLinkConditionFunc("g", "alice", "data7_admin", util.TimeMatchFunc)
e.AddNamedLinkConditionFunc("g", "alice", "data8_admin", util.TimeMatchFunc)


e.enforce("alice", "data1", "read")     // except: true
e.enforce("alice", "data2", "write")    // except: false
e.enforce("alice", "data3", "read")     // except: true
e.enforce("alice", "data4", "write")    // except: true
e.enforce("alice", "data5", "read")     // except: true
e.enforce("alice", "data6", "write")    // except: false
e.enforce("alice", "data7", "read")     // except: true
e.enforce("alice", "data8", "write")    // except: false

Funzioni condizionali personalizzate

Le funzioni condizionali personalizzate devono conformarsi ai seguenti tipi di funzione

type LinkConditionFunc = func(args ...string) (bool, error)

ad esempio:

// TimeMatchFunc is the wrapper for TimeMatch.
func TimeMatchFunc(args ...string) (bool, error) {
    if err := validateVariadicStringArgs(2, args...); err != nil {
        return false, fmt.Errorf("%s: %s", "TimeMatch", err)
    }
    return TimeMatch(args[0], args[1])
}

// TimeMatch determines whether the current time is between startTime and endTime.
// You can use "_" to indicate that the parameter is ignored
func TimeMatch(startTime, endTime string) (bool, error) {
    now := time.Now()
    if startTime != "_" {
        if start, err := time.Parse("2006-01-02 15:04:05", startTime); err != nil {
            return false, err
        } else if !now.After(start) {
            return false, nil
        }
    }

    if endTime != "_" {
        if end, err := time.Parse("2006-01-02 15:04:05", endTime); err != nil {
            return false, err
        } else if !now.Before(end) {
            return false, nil
        }
    }

    return true, nil
}

Conditional RoleManager con domini

model.conf

[request_definition]
r = sub, dom, obj, act

[policy_definition]
p = sub, dom, obj, act

[role_definition]
g = _, _, _, (_, _)

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

[matchers]
m = g(r.sub, p.sub, r.dom) && r.dom == p.dom && r.obj == p.obj && r.act == p.act

policy.csv

p, alice, data1, read
p, data2_admin, data2, write
p, data3_admin, data3, read
p, data4_admin, data4, write
p, data5_admin, data5, read
p, data6_admin, data6, write
p, data7_admin, data7, read
p, data8_admin, data8, write

g, alice, data2_admin, domain2, 0000-01-01 00:00:00, 0000-01-02 00:00:00
g, alice, data3_admin, domain3, 0000-01-01 00:00:00, 9999-12-30 00:00:00
g, alice, data4_admin, domain4, _, _
g, alice, data5_admin, domain5, _, 9999-12-30 00:00:00
g, alice, data6_admin, domain6, _, 0000-01-02 00:00:00
g, alice, data7_admin, domain7, 0000-01-01 00:00:00, _
g, alice, data8_admin, domain8, 9999-12-30 00:00:00, _

Utilizzo di base

Aggiungi una funzione condizionale per la politica del ruolo (g tipo politica) attraverso AddNamedDomainLinkConditionFunc, Se il controllo passa, allora la politica del ruolo corrispondente (g tipo politica) è valida, altrimenti non è valida

e.AddNamedDomainLinkConditionFunc("g", "alice", "data2_admin", "domain2", util.TimeMatchFunc)
e.AddNamedDomainLinkConditionFunc("g", "alice", "data3_admin", "domain3", util.TimeMatchFunc)
e.AddNamedDomainLinkConditionFunc("g", "alice", "data4_admin", "domain4", util.TimeMatchFunc)
e.AddNamedDomainLinkConditionFunc("g", "alice", "data5_admin", "domain5", util.TimeMatchFunc)
e.AddNamedDomainLinkConditionFunc("g", "alice", "data6_admin", "domain6", util.TimeMatchFunc)
e.AddNamedDomainLinkConditionFunc("g", "alice", "data7_admin", "domain7", util.TimeMatchFunc)
e.AddNamedDomainLinkConditionFunc("g", "alice", "data8_admin", "domain8", util.TimeMatchFunc)


e.enforce("alice", "domain1", "data1", "read")              // except: true
e.enforce("alice", "domain2", "data2", "write")             // except: false
e.enforce("alice", "domain3", "data3", "read")              // except: true
e.enforce("alice", "domain4", "data4", "write")             // except: true
e.enforce("alice", "domain5", "data5", "read")              // except: true
e.enforce("alice", "domain6", "data6", "write")             // except: false
e.enforce("alice", "domain7", "data7", "read")              // except: true
e.enforce("alice", "domain8", "data8", "write")             // except: false
e.enforce("alice", "domain_not_exist", "data1", "write")    // except: false
e.enforce("alice", "domain_not_exist", "data2", "read")     // except: false
e.enforce("alice", "domain_not_exist", "data3", "write")    // except: false
e.enforce("alice", "domain_not_exist", "data4", "read")     // except: false
e.enforce("alice", "domain_not_exist", "data5", "write")    // except: false
e.enforce("alice", "domain_not_exist", "data6", "read")     // except: false
e.enforce("alice", "domain_not_exist", "data7", "write")    // except: false
e.enforce("alice", "domain_not_exist", "data8", "read")     // except: false