afero/httpFs.go

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2014-10-28 17:29:28 +03:00
// Copyright © 2014 Steve Francia <spf@spf13.com>.
//
// 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 afero
import (
"errors"
"net/http"
"os"
"path"
"path/filepath"
"strings"
)
type httpDir struct {
basePath string
fs HttpFs
}
func (d httpDir) Open(name string) (http.File, error) {
if filepath.Separator != '/' && strings.IndexRune(name, filepath.Separator) >= 0 ||
strings.Contains(name, "\x00") {
return nil, errors.New("http: invalid character in file path")
}
dir := string(d.basePath)
if dir == "" {
dir = "."
}
f, err := d.fs.Open(filepath.Join(dir, filepath.FromSlash(path.Clean("/"+name))))
if err != nil {
return nil, err
}
return f, nil
}
type HttpFs struct {
SourceFs Fs
}
func (h HttpFs) Dir(s string) *httpDir {
return &httpDir{basePath: s, fs: h}
}
func (h HttpFs) Name() string { return "h HttpFs" }
func (h HttpFs) Create(name string) (File, error) {
return h.SourceFs.Create(name)
}
func (h HttpFs) Mkdir(name string, perm os.FileMode) error {
return h.SourceFs.Mkdir(name, perm)
}
func (h HttpFs) MkdirAll(path string, perm os.FileMode) error {
return h.SourceFs.MkdirAll(path, perm)
}
func (h HttpFs) Open(name string) (http.File, error) {
f, err := h.SourceFs.Open(name)
if err == nil {
if httpfile, ok := f.(http.File); ok {
return httpfile, nil
}
}
return nil, err
}
func (h HttpFs) OpenFile(name string, flag int, perm os.FileMode) (File, error) {
return h.SourceFs.OpenFile(name, flag, perm)
}
func (h HttpFs) Remove(name string) error {
return h.SourceFs.Remove(name)
}
func (h HttpFs) RemoveAll(path string) error {
return h.SourceFs.RemoveAll(path)
}
func (h HttpFs) Rename(oldname, newname string) error {
return h.SourceFs.Rename(oldname, newname)
}
func (h HttpFs) Stat(name string) (os.FileInfo, error) {
return h.SourceFs.Stat(name)
}