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							69 lines
						
					
					
						
							1.9 KiB
						
					
					
				| // 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 fileserver | |
| 
 | |
| import ( | |
| 	"net/http" | |
| 	"os" | |
| 
 | |
| 	"github.com/caddyserver/caddy/v2" | |
| 	"github.com/caddyserver/caddy/v2/modules/caddyhttp" | |
| ) | |
| 
 | |
| func init() { | |
| 	caddy.RegisterModule(caddy.Module{ | |
| 		Name: "http.matchers.file", | |
| 		New:  func() interface{} { return new(FileMatcher) }, | |
| 	}) | |
| } | |
| 
 | |
| // FileMatcher is a matcher that can match requests | |
| // based on the local file system. | |
| // TODO: Not sure how to do this well; we'd need the ability to | |
| // hide files, etc... | |
| // TODO: Also consider a feature to match directory that | |
| // contains a certain filename (use filepath.Glob), useful | |
| // if wanting to map directory-URI requests where the dir | |
| // has index.php to PHP backends, for example (although this | |
| // can effectively be done with rehandling already) | |
| type FileMatcher struct { | |
| 	Root  string   `json:"root"` | |
| 	Path  string   `json:"path"` | |
| 	Flags []string `json:"flags"` | |
| } | |
| 
 | |
| // Match matches the request r against m. | |
| func (m FileMatcher) Match(r *http.Request) bool { | |
| 	fullPath := sanitizedPathJoin(m.Root, m.Path) | |
| 	var match bool | |
| 	if len(m.Flags) > 0 { | |
| 		match = true | |
| 		fi, err := os.Stat(fullPath) | |
| 		for _, f := range m.Flags { | |
| 			switch f { | |
| 			case "EXIST": | |
| 				match = match && os.IsNotExist(err) | |
| 			case "DIR": | |
| 				match = match && err == nil && fi.IsDir() | |
| 			default: | |
| 				match = false | |
| 			} | |
| 		} | |
| 	} | |
| 	return match | |
| } | |
| 
 | |
| // Interface guard | |
| var _ caddyhttp.RequestMatcher = (*FileMatcher)(nil)
 | |
| 
 |