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init.go
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init.go
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package repo
import (
"context"
"errors"
"fmt"
"os"
"path"
"time"
"github.com/OpenBazaar/openbazaar-go/ipfs"
"github.com/OpenBazaar/openbazaar-go/schema"
"github.com/ipfs/go-ipfs/core"
"github.com/ipfs/go-ipfs/namesys"
"github.com/ipfs/go-ipfs/repo/fsrepo"
"github.com/op/go-logging"
"github.com/tyler-smith/go-bip39"
)
const RepoVersion = "34"
var log = logging.MustGetLogger("repo")
var ErrRepoExists = errors.New("IPFS configuration file exists. Reinitializing would overwrite your keys. Use -f to force overwrite.")
func init() {
ipfs.InstallDatabasePlugins()
}
func DoInit(repoRoot string, nBitsForKeypair int, testnet bool, password string, mnemonic string, creationDate time.Time, dbInit func(string, []byte, string, time.Time) error) error {
nodeSchema, err := schema.NewCustomSchemaManager(schema.SchemaContext{
DataPath: repoRoot,
TestModeEnabled: testnet,
Mnemonic: mnemonic,
})
if err != nil {
return err
}
if err := nodeSchema.BuildSchemaDirectories(); err != nil {
return err
}
if fsrepo.IsInitialized(repoRoot) {
err := MigrateUp(repoRoot, password, testnet)
if err != nil {
return err
}
return ErrRepoExists
}
if err := checkWriteable(repoRoot); err != nil {
return err
}
conf := schema.MustDefaultConfig()
if mnemonic == "" {
mnemonic, err = createMnemonic(bip39.NewEntropy, bip39.NewMnemonic)
if err != nil {
return err
}
}
seed := bip39.NewSeed(mnemonic, "Secret Passphrase")
fmt.Printf("Generating Ed25519 keypair...")
identityKey, err := ipfs.IdentityKeyFromSeed(seed, nBitsForKeypair)
if err != nil {
return err
}
fmt.Printf("Done\n")
identity, err := ipfs.IdentityFromKey(identityKey)
if err != nil {
return err
}
conf.Identity = identity
log.Infof("Initializing OpenBazaar node at %s\n", repoRoot)
if err := fsrepo.Init(repoRoot, conf); err != nil {
return err
}
if err := addConfigExtensions(repoRoot); err != nil {
return err
}
if err := dbInit(mnemonic, identityKey, password, creationDate); err != nil {
return err
}
f, err := os.Create(path.Join(repoRoot, "repover"))
if err != nil {
return err
}
_, werr := f.Write([]byte(RepoVersion))
if werr != nil {
return werr
}
if err := initializeIpnsKeyspace(repoRoot, identityKey); err != nil {
return err
}
return nodeSchema.CleanIdentityFromConfig()
}
func checkWriteable(dir string) error {
_, err := os.Stat(dir)
if err == nil {
// Directory exists, make sure we can write to it
testfile := path.Join(dir, "test")
fi, err := os.Create(testfile)
if err != nil {
if os.IsPermission(err) {
return fmt.Errorf("%s is not writeable by the current user", dir)
}
return fmt.Errorf("unexpected error while checking writeablility of repo root: %s", err)
}
fi.Close()
return os.Remove(testfile)
}
if os.IsNotExist(err) {
// Directory does not exist, check that we can create it
return os.Mkdir(dir, 0775)
}
if os.IsPermission(err) {
return fmt.Errorf("cannot write to %s, incorrect permissions", err)
}
return err
}
func initializeIpnsKeyspace(repoRoot string, privKeyBytes []byte) error {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
r, err := fsrepo.Open(repoRoot)
if err != nil { // NB: repo is owned by the node
return err
}
cfg, err := r.Config()
if err != nil {
log.Error(err)
return err
}
identity, err := ipfs.IdentityFromKey(privKeyBytes)
if err != nil {
return err
}
cfg.Identity = identity
nd, err := core.NewNode(ctx, &core.BuildCfg{Repo: r})
if err != nil {
return err
}
defer nd.Close()
return namesys.InitializeKeyspace(ctx, nd.Namesys, nd.Pinning, nd.PrivateKey)
}
func addConfigExtensions(repoRoot string) error {
r, err := fsrepo.Open(repoRoot)
if err != nil { // NB: repo is owned by the node
return err
}
var (
a = schema.APIConfig{
Enabled: true,
AllowedIPs: []string{},
HTTPHeaders: nil,
}
ds = schema.DataSharing{
AcceptStoreRequests: false,
PushTo: schema.DataPushNodes,
}
ie = schema.IpnsExtraConfig{
DHTQuorumSize: 1,
APIRouter: schema.IPFSCachingRouterDefaultURI,
}
t = schema.TorConfig{}
)
if err := r.SetConfigKey("Wallets", schema.DefaultWalletsConfig()); err != nil {
return err
}
if err := r.SetConfigKey("DataSharing", ds); err != nil {
return err
}
if err := r.SetConfigKey("Bootstrap-testnet", schema.BootstrapAddressesTestnet); err != nil {
return err
}
if err := r.SetConfigKey("Dropbox-api-token", ""); err != nil {
return err
}
if err := r.SetConfigKey("IpnsExtra", ie); err != nil {
return err
}
if err := r.SetConfigKey("RepublishInterval", "24h"); err != nil {
return err
}
if err := r.SetConfigKey("JSON-API", a); err != nil {
return err
}
if err := r.SetConfigKey("Tor-config", t); err != nil {
return err
}
if err := r.Close(); err != nil {
return err
}
return nil
}
func createMnemonic(newEntropy func(int) ([]byte, error), newMnemonic func([]byte) (string, error)) (string, error) {
entropy, err := newEntropy(128)
if err != nil {
return "", err
}
mnemonic, err := newMnemonic(entropy)
if err != nil {
return "", err
}
return mnemonic, nil
}
// GetRepoPath returns the directory to store repo data in.
func GetRepoPath(isTestnet bool, repoPath string) (string, error) {
ctx := schema.SchemaContext{
TestModeEnabled: isTestnet,
}
if repoPath != "" {
ctx.DataPath = repoPath
}
paths, err := schema.NewCustomSchemaManager(ctx)
if err != nil {
return "", err
}
return paths.DataPath(), nil
}