mirror of
https://github.com/astaxie/beego.git
synced 2024-12-23 10:40:50 +00:00
98 lines
2.6 KiB
Go
98 lines
2.6 KiB
Go
// Copyright 2016 beego 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 beego
|
|
|
|
import (
|
|
"strings"
|
|
|
|
"github.com/astaxie/beego/context"
|
|
)
|
|
|
|
// PolicyFunc defines a policy function which is invoked before the controller handler is executed.
|
|
type PolicyFunc func(*context.Context)
|
|
|
|
// FindPolicy Find Router info for URL
|
|
func (p *ControllerRegister) FindPolicy(cont *context.Context) []PolicyFunc {
|
|
var urlPath = cont.Input.URL()
|
|
if !BConfig.RouterCaseSensitive {
|
|
urlPath = strings.ToLower(urlPath)
|
|
}
|
|
httpMethod := cont.Input.Method()
|
|
isWildcard := false
|
|
// Find policy for current method
|
|
t, ok := p.policies[httpMethod]
|
|
// If not found - find policy for whole controller
|
|
if !ok {
|
|
t, ok = p.policies["*"]
|
|
isWildcard = true
|
|
}
|
|
if ok {
|
|
runObjects := t.Match(urlPath, cont)
|
|
if r, ok := runObjects.([]PolicyFunc); ok {
|
|
return r
|
|
} else if !isWildcard {
|
|
// If no policies found and we checked not for "*" method - try to find it
|
|
t, ok = p.policies["*"]
|
|
if ok {
|
|
runObjects = t.Match(urlPath, cont)
|
|
if r, ok = runObjects.([]PolicyFunc); ok {
|
|
return r
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (p *ControllerRegister) addToPolicy(method, pattern string, r ...PolicyFunc) {
|
|
method = strings.ToUpper(method)
|
|
p.enablePolicy = true
|
|
if !BConfig.RouterCaseSensitive {
|
|
pattern = strings.ToLower(pattern)
|
|
}
|
|
if t, ok := p.policies[method]; ok {
|
|
t.AddRouter(pattern, r)
|
|
} else {
|
|
t := NewTree()
|
|
t.AddRouter(pattern, r)
|
|
p.policies[method] = t
|
|
}
|
|
}
|
|
|
|
// Policy Register new policy in beego
|
|
func Policy(pattern, method string, policy ...PolicyFunc) {
|
|
BeeApp.Handlers.addToPolicy(method, pattern, policy...)
|
|
}
|
|
|
|
// Find policies and execute if were found
|
|
func (p *ControllerRegister) execPolicy(cont *context.Context, urlPath string) (started bool) {
|
|
if !p.enablePolicy {
|
|
return false
|
|
}
|
|
// Find Policy for method
|
|
policyList := p.FindPolicy(cont)
|
|
if len(policyList) > 0 {
|
|
// Run policies
|
|
for _, runPolicy := range policyList {
|
|
runPolicy(cont)
|
|
if cont.ResponseWriter.Started {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
return false
|
|
}
|