1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
// Copyright 2017 The casbin Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package model
import (
"sync"
"github.com/casbin/casbin/v2/util"
"github.com/casbin/govaluate"
)
// FunctionMap represents the collection of Function.
type FunctionMap struct {
fns *sync.Map
}
// [string]govaluate.ExpressionFunction
// AddFunction adds an expression function.
func (fm *FunctionMap) AddFunction(name string, function govaluate.ExpressionFunction) {
fm.fns.LoadOrStore(name, function)
}
// LoadFunctionMap loads an initial function map.
func LoadFunctionMap() FunctionMap {
fm := &FunctionMap{}
fm.fns = &sync.Map{}
fm.AddFunction("keyMatch", util.KeyMatchFunc)
fm.AddFunction("keyGet", util.KeyGetFunc)
fm.AddFunction("keyMatch2", util.KeyMatch2Func)
fm.AddFunction("keyGet2", util.KeyGet2Func)
fm.AddFunction("keyMatch3", util.KeyMatch3Func)
fm.AddFunction("keyGet3", util.KeyGet3Func)
fm.AddFunction("keyMatch4", util.KeyMatch4Func)
fm.AddFunction("keyMatch5", util.KeyMatch5Func)
fm.AddFunction("regexMatch", util.RegexMatchFunc)
fm.AddFunction("ipMatch", util.IPMatchFunc)
fm.AddFunction("globMatch", util.GlobMatchFunc)
return *fm
}
// GetFunctions return a map with all the functions.
func (fm *FunctionMap) GetFunctions() map[string]govaluate.ExpressionFunction {
ret := make(map[string]govaluate.ExpressionFunction)
fm.fns.Range(func(k interface{}, v interface{}) bool {
ret[k.(string)] = v.(govaluate.ExpressionFunction)
return true
})
return ret
}
|
