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selfhostedstorage.go
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selfhostedstorage.go
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package selfhosted
import (
"crypto/sha256"
"encoding/hex"
ma "gx/ipfs/QmSWLfmj5frN9xVLMMN846dMDriy5wN5jeghUm7aTW3DAG/go-multiaddr"
peer "gx/ipfs/QmWUswjn261LSyVxWAEpMVtPdy8zmKBJJfBpG3Qdpa8ZsE/go-libp2p-peer"
"os"
"path"
"bytes"
"github.com/OpenBazaar/openbazaar-go/ipfs"
"github.com/ipfs/go-ipfs/commands"
"golang.org/x/net/proxy"
"net"
"net/http"
"net/url"
"time"
)
type SelfHostedStorage struct {
repoPath string
context commands.Context
crossPostGateways []*url.URL
httpClient *http.Client
}
func NewSelfHostedStorage(repoPath string, context commands.Context, crossPostGateways []*url.URL, dialer proxy.Dialer) *SelfHostedStorage {
dial := net.Dial
if dialer != nil {
dial = dialer.Dial
}
tbTransport := &http.Transport{Dial: dial}
client := &http.Client{Transport: tbTransport, Timeout: time.Minute}
return &SelfHostedStorage{
repoPath: repoPath,
context: context,
crossPostGateways: crossPostGateways,
httpClient: client,
}
}
func (s *SelfHostedStorage) Store(peerID peer.ID, ciphertext []byte) (ma.Multiaddr, error) {
b := sha256.Sum256(ciphertext)
hash := hex.EncodeToString(b[:])
filePath := path.Join(s.repoPath, "outbox", hash)
f, err := os.Create(filePath)
if err != nil {
return nil, err
}
defer f.Close()
_, ferr := f.Write(ciphertext)
if ferr != nil {
return nil, ferr
}
addr, err := ipfs.AddFile(s.context, filePath)
if err != nil {
return nil, err
}
for _, g := range s.crossPostGateways {
s.httpClient.Post(g.String()+"ipfs/", "application/x-www-form-urlencoded", bytes.NewReader(ciphertext))
}
maAddr, err := ma.NewMultiaddr("/ipfs/" + addr + "/")
if err != nil {
return nil, err
}
return maAddr, nil
}