mirror of
https://github.com/ipfs/kubo.git
synced 2025-09-10 09:52:20 +08:00
119 lines
3.1 KiB
Go
119 lines
3.1 KiB
Go
package offline
|
|
|
|
import (
|
|
"errors"
|
|
"time"
|
|
|
|
proto "gx/ipfs/QmZ4Qi3GaRbjcx28Sme5eMH7RQjGkt8wHxt2a65oLaeFEV/gogo-protobuf/proto"
|
|
ds "github.com/ipfs/go-ipfs/Godeps/_workspace/src/github.com/ipfs/go-datastore"
|
|
key "github.com/ipfs/go-ipfs/blocks/key"
|
|
routing "github.com/ipfs/go-ipfs/routing"
|
|
pb "github.com/ipfs/go-ipfs/routing/dht/pb"
|
|
record "github.com/ipfs/go-ipfs/routing/record"
|
|
ci "gx/ipfs/QmUBogf4nUefBjmYjn6jfsfPJRkmDGSeMhNj4usRKq69f4/go-libp2p/p2p/crypto"
|
|
"gx/ipfs/QmUBogf4nUefBjmYjn6jfsfPJRkmDGSeMhNj4usRKq69f4/go-libp2p/p2p/peer"
|
|
context "gx/ipfs/QmZy2y8t9zQH2a1b8q2ZSLKp17ATuJoCNxxyMFG5qFExpt/go-net/context"
|
|
logging "gx/ipfs/Qmazh5oNUVsDZTs2g59rq8aYQqwpss8tcUWQzor5sCCEuH/go-log"
|
|
)
|
|
|
|
var log = logging.Logger("offlinerouting")
|
|
|
|
var ErrOffline = errors.New("routing system in offline mode")
|
|
|
|
func NewOfflineRouter(dstore ds.Datastore, privkey ci.PrivKey) routing.IpfsRouting {
|
|
return &offlineRouting{
|
|
datastore: dstore,
|
|
sk: privkey,
|
|
}
|
|
}
|
|
|
|
// offlineRouting implements the IpfsRouting interface,
|
|
// but only provides the capability to Put and Get signed dht
|
|
// records to and from the local datastore.
|
|
type offlineRouting struct {
|
|
datastore ds.Datastore
|
|
sk ci.PrivKey
|
|
}
|
|
|
|
func (c *offlineRouting) PutValue(ctx context.Context, key key.Key, val []byte) error {
|
|
rec, err := record.MakePutRecord(c.sk, key, val, false)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
data, err := proto.Marshal(rec)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
return c.datastore.Put(key.DsKey(), data)
|
|
}
|
|
|
|
func (c *offlineRouting) GetValue(ctx context.Context, key key.Key) ([]byte, error) {
|
|
v, err := c.datastore.Get(key.DsKey())
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
byt, ok := v.([]byte)
|
|
if !ok {
|
|
return nil, errors.New("value stored in datastore not []byte")
|
|
}
|
|
rec := new(pb.Record)
|
|
err = proto.Unmarshal(byt, rec)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return rec.GetValue(), nil
|
|
}
|
|
|
|
func (c *offlineRouting) GetValues(ctx context.Context, key key.Key, _ int) ([]routing.RecvdVal, error) {
|
|
v, err := c.datastore.Get(key.DsKey())
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
byt, ok := v.([]byte)
|
|
if !ok {
|
|
return nil, errors.New("value stored in datastore not []byte")
|
|
}
|
|
rec := new(pb.Record)
|
|
err = proto.Unmarshal(byt, rec)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return []routing.RecvdVal{
|
|
{Val: rec.GetValue()},
|
|
}, nil
|
|
}
|
|
|
|
func (c *offlineRouting) FindProviders(ctx context.Context, key key.Key) ([]peer.PeerInfo, error) {
|
|
return nil, ErrOffline
|
|
}
|
|
|
|
func (c *offlineRouting) FindPeer(ctx context.Context, pid peer.ID) (peer.PeerInfo, error) {
|
|
return peer.PeerInfo{}, ErrOffline
|
|
}
|
|
|
|
func (c *offlineRouting) FindProvidersAsync(ctx context.Context, k key.Key, max int) <-chan peer.PeerInfo {
|
|
out := make(chan peer.PeerInfo)
|
|
close(out)
|
|
return out
|
|
}
|
|
|
|
func (c *offlineRouting) Provide(_ context.Context, key key.Key) error {
|
|
return ErrOffline
|
|
}
|
|
|
|
func (c *offlineRouting) Ping(ctx context.Context, p peer.ID) (time.Duration, error) {
|
|
return 0, ErrOffline
|
|
}
|
|
|
|
func (c *offlineRouting) Bootstrap(context.Context) error {
|
|
return nil
|
|
}
|
|
|
|
// ensure offlineRouting matches the IpfsRouting interface
|
|
var _ routing.IpfsRouting = &offlineRouting{}
|