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current_path.go
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/
current_path.go
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// Copyright 2020 Google LLC
//
// 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 middleware defines shared middleware for handlers.
package middleware
import (
"net/http"
"net/url"
"path"
"strings"
"github.com/google/exposure-notifications-verification-server/pkg/controller"
"github.com/gorilla/mux"
)
type Path struct {
uri *url.URL
}
func InjectCurrentPath() mux.MiddlewareFunc {
return func(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
m := controller.TemplateMapFromContext(ctx)
m["currentPath"] = &Path{uri: r.URL}
ctx = controller.WithTemplateMap(ctx, m)
r = r.Clone(ctx)
next.ServeHTTP(w, r)
})
}
}
func (p *Path) String() string {
return p.uri.String()
}
func (p *Path) IsPath(s string) bool {
return p.uri.RequestURI() == s
}
func (p *Path) IsDir(s string) bool {
return strings.HasPrefix(p.uri.RequestURI(), s)
}
func (p *Path) IsFile(s string) bool {
_, file := path.Split(p.uri.RequestURI())
return file == s
}