forked from google/martian
/
servemux_filter.go
46 lines (39 loc) · 1.36 KB
/
servemux_filter.go
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// Copyright 2016 Google Inc. 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 servemux contains a filter that executes modifiers when there is a
// pattern match in a mux.
package servemux
import (
"net/http"
"github.com/google/martian"
"github.com/google/martian/filter"
)
var noop = martian.Noop("mux.Filter")
// Filter is a modifier that executes mod if a pattern is matched in mux.
type Filter struct {
*filter.Filter
}
// NewFilter constructs a filter that applies the modifier when the request
// url matches a pattern in mux. If no mux is provided, the request is evaluated
// against patterns in http.DefaultServeMux.
func NewFilter(mux *http.ServeMux) *Filter {
if mux == nil {
mux = http.DefaultServeMux
}
m := NewMatcher(mux)
f := filter.New()
f.SetRequestCondition(m)
f.SetResponseCondition(m)
return &Filter{Filter: f}
}