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// Copyright 2015 Matthew Holt and The Caddy Authors
//
// 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 caddyhttp
import (
"fmt"
"net/http"
"github.com/caddyserver/caddy/v2"
)
func init() {
caddy.RegisterModule(Subroute{})
}
// Subroute implements a handler that compiles and executes routes.
// This is useful for a batch of routes that all inherit the same
// matchers, or for routes with matchers that must be have deferred
// evaluation (e.g. if they depend on placeholders created by other
// matchers that need to be evaluated first).
type Subroute struct {
Routes RouteList `json:"routes,omitempty"`
}
// CaddyModule returns the Caddy module information.
func (Subroute) CaddyModule() caddy.ModuleInfo {
return caddy.ModuleInfo{
Name: "http.handlers.subroute",
New: func() caddy.Module { return new(Subroute) },
}
}
// Provision sets up subrouting.
func (sr *Subroute) Provision(ctx caddy.Context) error {
if sr.Routes != nil {
err := sr.Routes.Provision(ctx)
if err != nil {
return fmt.Errorf("setting up routes: %v", err)
}
}
return nil
}
func (sr *Subroute) ServeHTTP(w http.ResponseWriter, r *http.Request, _ Handler) error {
subroute := sr.Routes.BuildCompositeRoute(r)
return subroute.ServeHTTP(w, r)
}
// Interface guards
var (
_ caddy.Provisioner = (*Subroute)(nil)
_ MiddlewareHandler = (*Subroute)(nil)
)
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