/
init.go
145 lines (128 loc) · 3.36 KB
/
init.go
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package config
import (
"encoding/base64"
"errors"
"fmt"
"io"
peer "gx/ipfs/QmXYjuNuxVzXKJCfWasQk1RqkhVLDM9jtUKhqc2WPQmFSB/go-libp2p-peer"
ci "gx/ipfs/QmaPbCnUMBohSGo3KnxEa2bHqyJVVeEEcwtqJAYxerieBo/go-libp2p-crypto"
)
func Init(out io.Writer, nBitsForKeypair int) (*Config, error) {
identity, err := identityConfig(out, nBitsForKeypair)
if err != nil {
return nil, err
}
bootstrapPeers, err := DefaultBootstrapPeers()
if err != nil {
return nil, err
}
datastore := DefaultDatastoreConfig()
conf := &Config{
// setup the node's default addresses.
// NOTE: two swarm listen addrs, one tcp, one utp.
Addresses: Addresses{
Swarm: []string{
"/ip4/0.0.0.0/tcp/4001",
// "/ip4/0.0.0.0/udp/4002/utp", // disabled for now.
"/ip6/::/tcp/4001",
},
Announce: []string{},
NoAnnounce: []string{},
API: "/ip4/127.0.0.1/tcp/5001",
Gateway: "/ip4/127.0.0.1/tcp/8080",
},
Datastore: datastore,
Bootstrap: BootstrapPeerStrings(bootstrapPeers),
Identity: identity,
Discovery: Discovery{MDNS{
Enabled: true,
Interval: 10,
}},
// setup the node mount points.
Mounts: Mounts{
IPFS: "/ipfs",
IPNS: "/ipns",
},
Ipns: Ipns{
ResolveCacheSize: 128,
},
Gateway: Gateway{
RootRedirect: "",
Writable: false,
PathPrefixes: []string{},
HTTPHeaders: map[string][]string{
"Access-Control-Allow-Origin": []string{"*"},
"Access-Control-Allow-Methods": []string{"GET"},
"Access-Control-Allow-Headers": []string{"X-Requested-With", "Range"},
},
},
Reprovider: Reprovider{
Interval: "12h",
Strategy: "all",
},
}
return conf, nil
}
// DefaultDatastoreConfig is an internal function exported to aid in testing.
func DefaultDatastoreConfig() Datastore {
return Datastore{
StorageMax: "10GB",
StorageGCWatermark: 90, // 90%
GCPeriod: "1h",
BloomFilterSize: 0,
Spec: map[string]interface{}{
"type": "mount",
"mounts": []interface{}{
map[string]interface{}{
"mountpoint": "/blocks",
"type": "measure",
"prefix": "flatfs.datastore",
"child": map[string]interface{}{
"type": "flatfs",
"path": "blocks",
"sync": true,
"shardFunc": "/repo/flatfs/shard/v1/next-to-last/2",
},
},
map[string]interface{}{
"mountpoint": "/",
"type": "measure",
"prefix": "leveldb.datastore",
"child": map[string]interface{}{
"type": "levelds",
"path": "datastore",
"compression": "none",
},
},
},
},
}
}
// identityConfig initializes a new identity.
func identityConfig(out io.Writer, nbits int) (Identity, error) {
// TODO guard higher up
ident := Identity{}
if nbits < 1024 {
return ident, errors.New("Bitsize less than 1024 is considered unsafe.")
}
fmt.Fprintf(out, "generating %v-bit RSA keypair...", nbits)
sk, pk, err := ci.GenerateKeyPair(ci.RSA, nbits)
if err != nil {
return ident, err
}
fmt.Fprintf(out, "done\n")
// currently storing key unencrypted. in the future we need to encrypt it.
// TODO(security)
skbytes, err := sk.Bytes()
if err != nil {
return ident, err
}
ident.PrivKey = base64.StdEncoding.EncodeToString(skbytes)
id, err := peer.IDFromPublicKey(pk)
if err != nil {
return ident, err
}
ident.PeerID = id.Pretty()
fmt.Fprintf(out, "peer identity: %s\n", ident.PeerID)
return ident, nil
}