mirror of
https://github.com/featurebasedb/featurebase.git
synced 2026-08-28 10:54:59 +00:00
101 lines
2.9 KiB
Go
101 lines
2.9 KiB
Go
// Copyright 2020 Pilosa Corp.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package pgtest
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import (
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"crypto/ecdsa"
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"crypto/elliptic"
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"crypto/rand"
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"crypto/tls"
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"crypto/x509"
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"crypto/x509/pkix"
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"encoding/pem"
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"math/big"
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"time"
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"github.com/molecula/featurebase/v2/pg"
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"github.com/pkg/errors"
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)
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// SetupTLS generates a TLS certificate and installs it into the server.
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// TODO: have the client properly trust this (generate a CA to install instead of using self-signed).
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func SetupTLS(server *pg.Server) error {
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// Generate an ecdsa key for the cert.
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key, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
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if err != nil {
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return errors.Wrap(err, "generating TLS key")
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}
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// Generate a random 128-bit serial number.
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serialNumber, err := rand.Int(rand.Reader, new(big.Int).Lsh(big.NewInt(1), 128))
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if err != nil {
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return errors.Wrap(err, "generating serial number")
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}
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// Make the certificate valid starting now.
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now := time.Now()
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// Create a certificate template.
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template := x509.Certificate{
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SerialNumber: serialNumber,
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Subject: pkix.Name{
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Organization: []string{"Molecula"},
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},
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NotBefore: now,
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NotAfter: now.Add(time.Hour),
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KeyUsage: x509.KeyUsageDigitalSignature,
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ExtKeyUsage: []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},
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BasicConstraintsValid: true,
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}
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// Generate a self-signed x509 cert from the template and the key.
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certData, err := x509.CreateCertificate(rand.Reader, &template, &template, key.Public(), key)
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if err != nil {
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return errors.Wrap(err, "encoding certificate x509")
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}
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// Encode the cert to PEM so that the TLS package can load it.
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certPEM := pem.EncodeToMemory(&pem.Block{
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Type: "CERTIFICATE",
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Bytes: certData,
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})
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// Encode the private key to x509.
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keyData, err := x509.MarshalPKCS8PrivateKey(key)
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if err != nil {
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return errors.Wrap(err, "encoding key x509")
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}
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// Encode the key to PEM so that the TLS package can load it.
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keyPEM := pem.EncodeToMemory(&pem.Block{
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Type: "PRIVATE KEY",
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Bytes: keyData,
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})
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// Load the certificate and key from their PEM encodings.
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cert, err := tls.X509KeyPair(certPEM, keyPEM)
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if err != nil {
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return errors.Wrap(err, "loading TLS key pair")
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}
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// Install the certificate into the server.
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if server.TLSConfig == nil {
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server.TLSConfig = &tls.Config{}
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}
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server.TLSConfig.Certificates = append(server.TLSConfig.Certificates, cert)
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return nil
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}
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