Implement inspect data API v2 (#15474)

Co-authored-by: Klaus Post <klauspost@gmail.com>

docs/debugging/inspect/utils.go

@@ -0,0 +1,54 @@
+// Copyright (c) 2015-2022 MinIO, Inc.
+//
+// This file is part of MinIO Object Storage stack
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package main
+
+import (
+	"crypto/rsa"
+	"crypto/x509"
+	"encoding/base64"
+	"encoding/pem"
+	"log"
+)
+
+func bytesToPrivateKey(priv []byte) (*rsa.PrivateKey, error) {
+	// Try PEM
+	if block, _ := pem.Decode(priv); block != nil {
+		return x509.ParsePKCS1PrivateKey(block.Bytes)
+	}
+	// Try base 64
+	dst := make([]byte, base64.StdEncoding.DecodedLen(len(priv)))
+	if n, err := base64.StdEncoding.Decode(dst, priv); err == nil {
+		return x509.ParsePKCS1PrivateKey(dst[:n])
+	}
+	// Try Raw, return error
+	return x509.ParsePKCS1PrivateKey(priv)
+}
+
+func fatalErr(err error) {
+	if err == nil {
+		return
+	}
+	log.Fatalln(err)
+}
+
+func fatalIf(b bool, msg string, v ...interface{}) {
+	if !b {
+		return
+	}
+	log.Fatalf(msg, v...)
+}