mirror of
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49 lines
1.1 KiB
Go
49 lines
1.1 KiB
Go
package record
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import (
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"bytes"
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"github.com/jbenet/go-ipfs/Godeps/_workspace/src/code.google.com/p/goprotobuf/proto"
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ci "github.com/jbenet/go-ipfs/p2p/crypto"
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pb "github.com/jbenet/go-ipfs/routing/dht/pb"
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eventlog "github.com/jbenet/go-ipfs/thirdparty/eventlog"
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u "github.com/jbenet/go-ipfs/util"
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)
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var log = eventlog.Logger("routing/record")
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// MakePutRecord creates and signs a dht record for the given key/value pair
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func MakePutRecord(sk ci.PrivKey, key u.Key, value []byte, sign bool) (*pb.Record, error) {
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record := new(pb.Record)
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record.Key = proto.String(string(key))
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record.Value = value
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pkh, err := sk.GetPublic().Hash()
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if err != nil {
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return nil, err
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}
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record.Author = proto.String(string(pkh))
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if sign {
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blob := RecordBlobForSig(record)
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sig, err := sk.Sign(blob)
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if err != nil {
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return nil, err
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}
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record.Signature = sig
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}
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return record, nil
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}
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// RecordBlobForSig returns the blob protected by the record signature
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func RecordBlobForSig(r *pb.Record) []byte {
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k := []byte(r.GetKey())
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v := []byte(r.GetValue())
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a := []byte(r.GetAuthor())
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return bytes.Join([][]byte{k, v, a}, []byte{})
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}
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