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I am not a lawyer, but according to the appendix of the license, these boilerplate notices should be included with every source file.
73 lines
2 KiB
Go
73 lines
2 KiB
Go
// Copyright 2015 Light Code Labs, LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Package status is middleware for returning status code for requests
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package status
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import (
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"net/http"
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"github.com/mholt/caddy/caddyhttp/httpserver"
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)
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// Rule describes status rewriting rule
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type Rule struct {
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// Base path. Request to this path and sub-paths will be answered with StatusCode
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Base string
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// Status code to return
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StatusCode int
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// Request matcher
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httpserver.RequestMatcher
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}
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// NewRule creates new Rule.
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func NewRule(basePath string, status int) *Rule {
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return &Rule{
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Base: basePath,
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StatusCode: status,
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RequestMatcher: httpserver.PathMatcher(basePath),
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}
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}
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// BasePath implements httpserver.HandlerConfig interface
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func (rule *Rule) BasePath() string {
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return rule.Base
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}
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// Status is a middleware to return status code for request
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type Status struct {
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Rules []httpserver.HandlerConfig
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Next httpserver.Handler
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}
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// ServeHTTP implements the httpserver.Handler interface
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func (status Status) ServeHTTP(w http.ResponseWriter, r *http.Request) (int, error) {
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if cfg := httpserver.ConfigSelector(status.Rules).Select(r); cfg != nil {
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rule := cfg.(*Rule)
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if rule.StatusCode < 400 {
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// There's no ability to return response body --
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// write the response status code in header and signal
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// to other handlers that response is already handled
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w.WriteHeader(rule.StatusCode)
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return 0, nil
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}
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return rule.StatusCode, nil
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}
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return status.Next.ServeHTTP(w, r)
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}
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