vendor/github.com/spf13/afero/httpFs.go

   1 // Copyright © 2014 Steve Francia <spf@spf13.com>.
   2 //
   3 // Licensed under the Apache License, Version 2.0 (the "License");
   4 // you may not use this file except in compliance with the License.
   5 // You may obtain a copy of the License at
   6 // http://www.apache.org/licenses/LICENSE-2.0
   7 //
   8 // Unless required by applicable law or agreed to in writing, software
   9 // distributed under the License is distributed on an "AS IS" BASIS,
  10 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  11 // See the License for the specific language governing permissions and
  12 // limitations under the License.
  13
  14 package afero
  15
  16 import (
  17         "errors"
  18         "net/http"
  19         "os"
  20         "path"
  21         "path/filepath"
  22         "strings"
  23         "time"
  24 )
  25
  26 type httpDir struct {
  27         basePath string
  28         fs       HttpFs
  29 }
  30
  31 func (d httpDir) Open(name string) (http.File, error) {
  32         if filepath.Separator != '/' && strings.IndexRune(name, filepath.Separator) >= 0 ||
  33                 strings.Contains(name, "\x00") {
  34                 return nil, errors.New("http: invalid character in file path")
  35         }
  36         dir := string(d.basePath)
  37         if dir == "" {
  38                 dir = "."
  39         }
  40
  41         f, err := d.fs.Open(filepath.Join(dir, filepath.FromSlash(path.Clean("/"+name))))
  42         if err != nil {
  43                 return nil, err
  44         }
  45         return f, nil
  46 }
  47
  48 type HttpFs struct {
  49         source Fs
  50 }
  51
  52 func NewHttpFs(source Fs) *HttpFs {
  53         return &HttpFs{source: source}
  54 }
  55
  56 func (h HttpFs) Dir(s string) *httpDir {
  57         return &httpDir{basePath: s, fs: h}
  58 }
  59
  60 func (h HttpFs) Name() string { return "h HttpFs" }
  61
  62 func (h HttpFs) Create(name string) (File, error) {
  63         return h.source.Create(name)
  64 }
  65
  66 func (h HttpFs) Chmod(name string, mode os.FileMode) error {
  67         return h.source.Chmod(name, mode)
  68 }
  69
  70 func (h HttpFs) Chtimes(name string, atime time.Time, mtime time.Time) error {
  71         return h.source.Chtimes(name, atime, mtime)
  72 }
  73
  74 func (h HttpFs) Mkdir(name string, perm os.FileMode) error {
  75         return h.source.Mkdir(name, perm)
  76 }
  77
  78 func (h HttpFs) MkdirAll(path string, perm os.FileMode) error {
  79         return h.source.MkdirAll(path, perm)
  80 }
  81
  82 func (h HttpFs) Open(name string) (http.File, error) {
  83         f, err := h.source.Open(name)
  84         if err == nil {
  85                 if httpfile, ok := f.(http.File); ok {
  86                         return httpfile, nil
  87                 }
  88         }
  89         return nil, err
  90 }
  91
  92 func (h HttpFs) OpenFile(name string, flag int, perm os.FileMode) (File, error) {
  93         return h.source.OpenFile(name, flag, perm)
  94 }
  95
  96 func (h HttpFs) Remove(name string) error {
  97         return h.source.Remove(name)
  98 }
  99
 100 func (h HttpFs) RemoveAll(path string) error {
 101         return h.source.RemoveAll(path)
 102 }
 103
 104 func (h HttpFs) Rename(oldname, newname string) error {
 105         return h.source.Rename(oldname, newname)
 106 }
 107
 108 func (h HttpFs) Stat(name string) (os.FileInfo, error) {
 109         return h.source.Stat(name)
 110 }