RBAC with Conditions

Pengurus Peranan Bersyarat

ConditionalRoleManager menyokong fungsi syarat tersuai pada tahap dasar.

Contohnya, apabila kita memerlukan dasar peranan sementara, kita boleh mengikuti pendekatan berikut:

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 = _, _, (_, _) menggunakan (_, _) untuk mengandungi senarai argumen untuk diteruskan ke fungsi syarat dan _ sebagai tempat letak parameter

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, _

Penggunaan Asas

Tambahkan fungsi syarat untuk dasar peranan (g jenis dasar) melalui AddNamedLinkConditionFunc, dan apabila penguatkuasaan dilaksanakan, parameter yang berkaitan akan diperolehi secara automatik dan diteruskan ke dalam fungsi syarat untuk pemeriksaan. Jika pemeriksaan lulus, maka dasar peranan yang berkaitan (g jenis dasar) adalah sah, jika tidak, ia tidak sah

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

Fungsi syarat tersuai

Fungsi bersyarat tersuai perlu mematuhi jenis fungsi berikut

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

contohnya:

// 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
}

Pengurus Peranan Bersyarat dengan domain

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, _

Penggunaan Asas

Tambahkan fungsi bersyarat untuk dasar peranan (g jenis dasar) melalui AddNamedDomainLinkConditionFunc, Jika pemeriksaan lulus, maka dasar peranan yang berkaitan (g jenis dasar) adalah sah, jika tidak, ia tidak sah

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

Fungsi bersyarat tersuai

Seperti Conditional RoleManager asas, fungsi tersuai disokong, dan tidak ada perbezaan dalam penggunaan.

Perhatikan bahawa DomainMatchingFunc, MatchingFunc, dan LinkConditionFunc berada pada tahap yang berbeza dan digunakan dalam situasi yang berbeza.