httpFs.go

Documentation: github.com/spf13/afero

     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.ContainsRune(name, filepath.Separator) ||
    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) Chown(name string, uid, gid int) error {
    71  	return h.source.Chown(name, uid, gid)
    72  }
    73  
    74  func (h HttpFs) Chtimes(name string, atime time.Time, mtime time.Time) error {
    75  	return h.source.Chtimes(name, atime, mtime)
    76  }
    77  
    78  func (h HttpFs) Mkdir(name string, perm os.FileMode) error {
    79  	return h.source.Mkdir(name, perm)
    80  }
    81  
    82  func (h HttpFs) MkdirAll(path string, perm os.FileMode) error {
    83  	return h.source.MkdirAll(path, perm)
    84  }
    85  
    86  func (h HttpFs) Open(name string) (http.File, error) {
    87  	f, err := h.source.Open(name)
    88  	if err == nil {
    89  		if httpfile, ok := f.(http.File); ok {
    90  			return httpfile, nil
    91  		}
    92  	}
    93  	return nil, err
    94  }
    95  
    96  func (h HttpFs) OpenFile(name string, flag int, perm os.FileMode) (File, error) {
    97  	return h.source.OpenFile(name, flag, perm)
    98  }
    99  
   100  func (h HttpFs) Remove(name string) error {
   101  	return h.source.Remove(name)
   102  }
   103  
   104  func (h HttpFs) RemoveAll(path string) error {
   105  	return h.source.RemoveAll(path)
   106  }
   107  
   108  func (h HttpFs) Rename(oldname, newname string) error {
   109  	return h.source.Rename(oldname, newname)
   110  }
   111  
   112  func (h HttpFs) Stat(name string) (os.FileInfo, error) {
   113  	return h.source.Stat(name)
   114  }
   115
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