<commit_before>package handler

// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// +build ignore

// Generate a self-signed X.509 certificate for a TLS server. Outputs to
// 'cert.pem' and 'key.pem' and will overwrite existing files.

import (
	"crypto/ecdsa"
	"crypto/elliptic"
	"crypto/rand"
	"crypto/rsa"
	"crypto/x509"
	"crypto/x509/pkix"
	"encoding/pem"
	"fmt"
	"github.com/codegangsta/cli"
	"math/big"
	"net"
	"os"
	"strings"
	"time"
)

func publicKey(priv interface{}) interface{} {
	switch k := priv.(type) {
	case *rsa.PrivateKey:
		return &k.PublicKey
	case *ecdsa.PrivateKey:
		return &k.PublicKey
	default:
		return nil
	}
}

func pemBlockForKey(priv interface{}) *pem.Block {
	switch k := priv.(type) {
	case *rsa.PrivateKey:
		return &pem.Block{Type: "RSA PRIVATE KEY", Bytes: x509.MarshalPKCS1PrivateKey(k)}
	case *ecdsa.PrivateKey:
		b, err := x509.MarshalECPrivateKey(k)
		if err != nil {
			fmt.Fprintf(os.Stderr, "Unable to marshal ECDSA private key: %v", err)
			os.Exit(2)
		}
		return &pem.Block{Type: "EC PRIVATE KEY", Bytes: b}
	default:
		return nil
	}
}

func CreateDummyTLSCert(ctx *cli.Context) error {
	getEnv()
	var (
		host       = ctx.String("host")
		validFrom  = ctx.String("start-date")
		validFor   = ctx.Duration("duration")
		isCA       = ctx.Bool("ca")
		rsaBits    = ctx.Int("rsa-bits")
		ecdsaCurve = ctx.String("ecdsa-curve")
	)

	if len(host) == 0 {
		return fmt.Errorf("Missing required --host parameter")
	}

	var priv interface{}
	var err error
	switch ecdsaCurve {
	case "":
		priv, err = rsa.GenerateKey(rand.Reader, rsaBits)
	case "P224":
		priv, err = ecdsa.GenerateKey(elliptic.P224(), rand.Reader)
	case "P256":
		priv, err = ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
	case "P384":
		priv, err = ecdsa.GenerateKey(elliptic.P384(), rand.Reader)
	case "P521":
		priv, err = ecdsa.GenerateKey(elliptic.P521(), rand.Reader)
	default:
		return fmt.Errorf("Unrecognized elliptic curve: %q", ecdsaCurve)
		os.Exit(1)
	}
	if err != nil {
		return fmt.Errorf("failed to generate private key: %s", err)
	}

	var notBefore time.Time
	if len(validFrom) == 0 {
		notBefore = time.Now()
	} else {
		notBefore, err = time.Parse("Jan 2 15:04:05 2006", validFrom)
		if err != nil {
			return fmt.Errorf("Failed to parse creation date: %s\n", err)
		}
	}

	notAfter := notBefore.Add(validFor)

	serialNumberLimit := new(big.Int).Lsh(big.NewInt(1), 128)
	serialNumber, err := rand.Int(rand.Reader, serialNumberLimit)
	if err != nil {
		return fmt.Errorf("failed to generate serial number: %s", err)
	}

	template := x509.Certificate{
		SerialNumber: serialNumber,
		Subject: pkix.Name{
			Organization: []string{"Acme Co"},
		},
		NotBefore: notBefore,
		NotAfter:  notAfter,

		KeyUsage:              x509.KeyUsageKeyEncipherment | x509.KeyUsageDigitalSignature,
		ExtKeyUsage:           []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},
		BasicConstraintsValid: true,
	}

	hosts := strings.Split(host, ",")
	for _, h := range hosts {
		if ip := net.ParseIP(h); ip != nil {
			template.IPAddresses = append(template.IPAddresses, ip)
		} else {
			template.DNSNames = append(template.DNSNames, h)
		}
	}

	if isCA {
		template.IsCA = true
		template.KeyUsage |= x509.KeyUsageCertSign
	}

	derBytes, err := x509.CreateCertificate(rand.Reader, &template, &template, publicKey(priv), priv)
	if err != nil {
		return fmt.Errorf("Failed to create certificate: %s", err)
	}

	certOut, err := os.Create(ctx.String("certificate-file-path"))
	if err != nil {
		return fmt.Errorf("failed to open cert.pem for writing: %s", err)
	}
	pem.Encode(certOut, &pem.Block{Type: "CERTIFICATE", Bytes: derBytes})
	certOut.Close()
	fmt.Printf("Written certificate to: %s\n", ctx.String("certificate-file-path"))

	keyOut, err := os.OpenFile(ctx.String("key-file-path"), os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0600)
	if err != nil {
		return fmt.Errorf("failed to open key.pem for writing:", err)
	}
	pem.Encode(keyOut, pemBlockForKey(priv))
	keyOut.Close()
	fmt.Printf("Written key to: %s\n", ctx.String("key-file-path"))
	fmt.Println("DO NOT use these files in production!")

	return nil
}<commit_msg>cli/hydra-host/handler/tls.go: no formatting directive in Errorf call<commit_after>package handler

// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// +build ignore

// Generate a self-signed X.509 certificate for a TLS server. Outputs to
// 'cert.pem' and 'key.pem' and will overwrite existing files.

import (
	"crypto/ecdsa"
	"crypto/elliptic"
	"crypto/rand"
	"crypto/rsa"
	"crypto/x509"
	"crypto/x509/pkix"
	"encoding/pem"
	"fmt"
	"math/big"
	"net"
	"os"
	"strings"
	"time"

	"github.com/codegangsta/cli"
)

func publicKey(priv interface{}) interface{} {
	switch k := priv.(type) {
	case *rsa.PrivateKey:
		return &k.PublicKey
	case *ecdsa.PrivateKey:
		return &k.PublicKey
	default:
		return nil
	}
}

func pemBlockForKey(priv interface{}) *pem.Block {
	switch k := priv.(type) {
	case *rsa.PrivateKey:
		return &pem.Block{Type: "RSA PRIVATE KEY", Bytes: x509.MarshalPKCS1PrivateKey(k)}
	case *ecdsa.PrivateKey:
		b, err := x509.MarshalECPrivateKey(k)
		if err != nil {
			fmt.Fprintf(os.Stderr, "Unable to marshal ECDSA private key: %v", err)
			os.Exit(2)
		}
		return &pem.Block{Type: "EC PRIVATE KEY", Bytes: b}
	default:
		return nil
	}
}

func CreateDummyTLSCert(ctx *cli.Context) error {
	getEnv()
	var (
		host       = ctx.String("host")
		validFrom  = ctx.String("start-date")
		validFor   = ctx.Duration("duration")
		isCA       = ctx.Bool("ca")
		rsaBits    = ctx.Int("rsa-bits")
		ecdsaCurve = ctx.String("ecdsa-curve")
	)

	if len(host) == 0 {
		return fmt.Errorf("Missing required --host parameter")
	}

	var priv interface{}
	var err error
	switch ecdsaCurve {
	case "":
		priv, err = rsa.GenerateKey(rand.Reader, rsaBits)
	case "P224":
		priv, err = ecdsa.GenerateKey(elliptic.P224(), rand.Reader)
	case "P256":
		priv, err = ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
	case "P384":
		priv, err = ecdsa.GenerateKey(elliptic.P384(), rand.Reader)
	case "P521":
		priv, err = ecdsa.GenerateKey(elliptic.P521(), rand.Reader)
	default:
		return fmt.Errorf("Unrecognized elliptic curve: %q", ecdsaCurve)
		os.Exit(1)
	}
	if err != nil {
		return fmt.Errorf("failed to generate private key: %s", err)
	}

	var notBefore time.Time
	if len(validFrom) == 0 {
		notBefore = time.Now()
	} else {
		notBefore, err = time.Parse("Jan 2 15:04:05 2006", validFrom)
		if err != nil {
			return fmt.Errorf("Failed to parse creation date: %s\n", err)
		}
	}

	notAfter := notBefore.Add(validFor)

	serialNumberLimit := new(big.Int).Lsh(big.NewInt(1), 128)
	serialNumber, err := rand.Int(rand.Reader, serialNumberLimit)
	if err != nil {
		return fmt.Errorf("failed to generate serial number: %s", err)
	}

	template := x509.Certificate{
		SerialNumber: serialNumber,
		Subject: pkix.Name{
			Organization: []string{"Acme Co"},
		},
		NotBefore: notBefore,
		NotAfter:  notAfter,

		KeyUsage:              x509.KeyUsageKeyEncipherment | x509.KeyUsageDigitalSignature,
		ExtKeyUsage:           []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},
		BasicConstraintsValid: true,
	}

	hosts := strings.Split(host, ",")
	for _, h := range hosts {
		if ip := net.ParseIP(h); ip != nil {
			template.IPAddresses = append(template.IPAddresses, ip)
		} else {
			template.DNSNames = append(template.DNSNames, h)
		}
	}

	if isCA {
		template.IsCA = true
		template.KeyUsage |= x509.KeyUsageCertSign
	}

	derBytes, err := x509.CreateCertificate(rand.Reader, &template, &template, publicKey(priv), priv)
	if err != nil {
		return fmt.Errorf("Failed to create certificate: %s", err)
	}

	certOut, err := os.Create(ctx.String("certificate-file-path"))
	if err != nil {
		return fmt.Errorf("failed to open cert.pem for writing: %s", err)
	}
	pem.Encode(certOut, &pem.Block{Type: "CERTIFICATE", Bytes: derBytes})
	certOut.Close()
	fmt.Printf("Written certificate to: %s\n", ctx.String("certificate-file-path"))

	keyOut, err := os.OpenFile(ctx.String("key-file-path"), os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0600)
	if err != nil {
		return fmt.Errorf("failed to open key.pem for writing: %v", err)
	}
	pem.Encode(keyOut, pemBlockForKey(priv))
	keyOut.Close()
	fmt.Printf("Written key to: %s\n", ctx.String("key-file-path"))
	fmt.Println("DO NOT use these files in production!")

	return nil
}
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