Add jwt-api tool

pkg/toolset/jwt.go

@@ -0,0 +1,58 @@
+package toolset
+
+import (
+	"encoding/hex"
+	"fmt"
+	"log"
+
+	"golang.org/x/crypto/blake2b"
+
+	"github.com/iotaledger/hornet/pkg/config"
+	"github.com/iotaledger/hornet/pkg/jwt"
+	"github.com/iotaledger/hornet/plugins/webapi"
+)
+
+func generateJWTApiToken(args []string) error {
+	// get nodes private key
+	privKey := config.NodeConfig.GetString(config.CfgWebAPIJWTAuthPrivateKey)
+	privKeyFilePath := config.NodeConfig.GetString(config.CfgWebAPIJWTAuthPrivateKeyPath)
+
+	// load up the previously generated identity or create a new one
+	jwtPrivateKey, _, err := webapi.LoadOrCreateIdentityPrivateKey(privKeyFilePath, privKey)
+	if err != nil {
+		log.Panic(err)
+	}
+
+	// create an ID by hashing the public key of the JWT private key
+	jwtPublicKeyBytes, err := jwtPrivateKey.GetPublic().Raw()
+	if err != nil {
+		log.Panic(err)
+	}
+	jwtIDBytes := blake2b.Sum256(jwtPublicKeyBytes)
+	jwtID := hex.EncodeToString(jwtIDBytes[:])
+
+	// configure JWT auth
+	salt := config.NodeConfig.GetString(config.CfgWebAPIJWTAuthSalt)
+	if len(salt) == 0 {
+		log.Fatalf("'%s' should not be empty", config.CfgWebAPIJWTAuthSalt)
+	}
+
+	// API tokens do not expire.
+	jwtAuth, err := jwt.NewAuth(salt,
+		0,
+		jwtID,
+		jwtPrivateKey,
+	)
+	if err != nil {
+		log.Fatalf("JWT auth initialization failed: %s", err)
+	}
+
+	jwtToken, err := jwtAuth.IssueJWT()
+	if err != nil {
+		return fmt.Errorf("issuing JWT token failed: %w", err)
+	}
+
+	fmt.Println("Your API JWT token: ", jwtToken)
+
+	return nil
+}

pkg/toolset/toolset.go

@@ -12,6 +12,7 @@ var (
 		"seedgen": seedGen,
 		"list":    listTools,
 		"merkle":  merkleTreeCreate,
+		"jwt-api": generateJWTApiToken,
 	}
 )
 
@@ -21,7 +22,7 @@ func HandleTools() {
 
 	toolFound := false
 	for i, arg := range args {
-		if strings.ToLower(arg) == "tool" {
+		if strings.ToLower(arg) == "tool" || strings.ToLower(arg) == "tools" {
 			args = args[i:]
 			toolFound = true
 			break
@@ -58,6 +59,7 @@ func listTools(args []string) error {
 	fmt.Println("pwdhash: generates a sha265 sum from your password and salt")
 	fmt.Println("seedgen: generates an autopeering seed")
 	fmt.Println("merkle: generates a Merkle tree for coordinator plugin")
+	fmt.Println("jwt-api: generates a JWT token for API access")
 
 	return nil
 }

plugins/webapi/api.go

@@ -77,7 +77,7 @@ func apiMiddleware() echo.MiddlewareFunc {
 	privKeyFilePath := config.NodeConfig.GetString(config.CfgWebAPIJWTAuthPrivateKeyPath)
 
 	// load up the previously generated identity or create a new one
-	jwtPrivateKey, _, err := loadOrCreateIdentityPrivateKey(privKeyFilePath, privKey)
+	jwtPrivateKey, _, err := LoadOrCreateIdentityPrivateKey(privKeyFilePath, privKey)
 	if err != nil {
 		log.Panic(err)
 	}

plugins/webapi/pem.go

@@ -184,9 +184,9 @@ func writeEd25519PrivateKeyToPEMFile(filepath string, privateKey ed25519.Private
 	return nil
 }
 
-// loadOrCreateIdentityPrivateKey loads an existing Ed25519 based identity private key
+// LoadOrCreateIdentityPrivateKey loads an existing Ed25519 based identity private key
 // or creates a new one and stores it as a PEM file in the p2p store folder.
-func loadOrCreateIdentityPrivateKey(privKeyFilePath string, identityPrivKey string) (libp2pcrypto.PrivKey, bool, error) {
+func LoadOrCreateIdentityPrivateKey(privKeyFilePath string, identityPrivKey string) (libp2pcrypto.PrivKey, bool, error) {
 
 	privKeyFromConfig, err := parseLibp2pEd25519PrivateKeyFromString(identityPrivKey)
 	if err != nil {