1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
// Copyright 2016 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package api
type Response struct {
MimeType string
Status int
Size int64
// Content []byte
Content string
}
// implements a service
type Storage struct {
api *Api
}
func NewStorage(api *Api) *Storage {
return &Storage{api}
}
// Put uploads the content to the swarm with a simple manifest speficying
// its content type
func (self *Storage) Put(content, contentType string) (string, error) {
return self.api.Put(content, contentType)
}
// Get retrieves the content from bzzpath and reads the response in full
// It returns the Response object, which serialises containing the
// response body as the value of the Content field
// NOTE: if error is non-nil, sResponse may still have partial content
// the actual size of which is given in len(resp.Content), while the expected
// size is resp.Size
func (self *Storage) Get(bzzpath string) (*Response, error) {
reader, mimeType, status, err := self.api.Get(bzzpath, true)
if err != nil {
return nil, err
}
quitC := make(chan bool)
expsize, err := reader.Size(quitC)
if err != nil {
return nil, err
}
body := make([]byte, expsize)
size, err := reader.Read(body)
if int64(size) == expsize {
err = nil
}
return &Response{mimeType, status, expsize, string(body[:size])}, err
}
// Modify(rootHash, path, contentHash, contentType) takes th e manifest trie rooted in rootHash,
// and merge on to it. creating an entry w conentType (mime)
func (self *Storage) Modify(rootHash, path, contentHash, contentType string) (newRootHash string, err error) {
return self.api.Modify(rootHash+"/"+path, contentHash, contentType, true)
}
|
