kubo/util/testutil/gen.go
2014-12-17 23:25:41 -08:00

67 lines
1.6 KiB
Go

package testutil
import (
crand "crypto/rand"
"fmt"
"math/rand"
ci "github.com/jbenet/go-ipfs/crypto"
peer "github.com/jbenet/go-ipfs/peer"
u "github.com/jbenet/go-ipfs/util"
ma "github.com/jbenet/go-ipfs/Godeps/_workspace/src/github.com/jbenet/go-multiaddr"
)
func RandPeer() peer.Peer {
id := make([]byte, 16)
crand.Read(id)
mhid := u.Hash(id)
return NewPeerWithID(peer.ID(mhid))
}
func PeerWithNewKeys() (peer.Peer, error) {
sk, pk, err := ci.GenerateKeyPair(ci.RSA, 512)
if err != nil {
return nil, err
}
return NewPeerWithKeyPair(sk, pk)
}
func PeerWithKeysAndStringAddress(addr string) (peer.Peer, error) {
maddr, err := ma.NewMultiaddr(addr)
if err != nil {
return nil, err
}
return PeerWithKeysAndAddress(maddr)
}
func PeerWithKeysAndAddress(maddr ma.Multiaddr) (peer.Peer, error) {
sk, pk, err := ci.GenerateKeyPair(ci.RSA, 512)
if err != nil {
return nil, err
}
p, err := NewPeerWithKeyPair(sk, pk)
if err != nil {
return nil, err
}
p.AddAddress(maddr)
return p, nil
}
// RandLocalTCPAddress returns a random multiaddr. it suppresses errors
// for nice composability-- do check the address isn't nil.
func RandLocalTCPAddress() ma.Multiaddr {
// chances are it will work out, but it **might** fail if the port is in use
// most ports above 10000 aren't in use by long running processes, so yay.
// (maybe there should be a range of "loopback" ports that are guaranteed
// to be open for the process, but naturally can only talk to self.)
addr := fmt.Sprintf("/ip4/127.0.0.1/tcp/%d", 10000+rand.Intn(50000))
maddr, _ := ma.NewMultiaddr(addr)
return maddr
}