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// Package crl implements the HTTP handler for the crl commands.
package crl
import (
"crypto/rand"
"crypto/x509/pkix"
"encoding/json"
"github.com/cloudflare/cfssl/api"
"github.com/cloudflare/cfssl/errors"
"github.com/cloudflare/cfssl/helpers"
"github.com/cloudflare/cfssl/log"
"io/ioutil"
"math/big"
"net/http"
"strconv"
"strings"
"time"
)
// This type is meant to be unmarshalled from JSON
type jsonCRLRequest struct {
Certificate string `json:"certificate"`
SerialNumber []string `json:"serialNumber"`
PrivateKey string `json:"issuingKey"`
ExpiryTime string `json:"expireTime"`
}
// Handle responds to requests for crl generation. It creates this crl
// based off of the given certificate, serial numbers, and private key
func crlHandler(w http.ResponseWriter, r *http.Request) error {
var revokedCerts []pkix.RevokedCertificate
var oneWeek = time.Duration(604800) * time.Second
var newExpiryTime = time.Now()
body, err := ioutil.ReadAll(r.Body)
if err != nil {
return err
}
r.Body.Close()
req := &jsonCRLRequest{}
err = json.Unmarshal(body, req)
if err != nil {
log.Error(err)
}
if req.ExpiryTime != "" {
expiryTime := strings.TrimSpace(req.ExpiryTime)
expiryInt, err := strconv.ParseInt(expiryTime, 0, 32)
if err != nil {
return err
}
newExpiryTime = time.Now().Add((time.Duration(expiryInt) * time.Second))
}
if req.ExpiryTime == "" {
newExpiryTime = time.Now().Add(oneWeek)
}
if err != nil {
return err
}
cert, err := helpers.ParseCertificatePEM([]byte(req.Certificate))
if err != nil {
log.Error("Error from ParseCertificatePEM", err)
return errors.NewBadRequestString("Malformed certificate")
}
for _, value := range req.SerialNumber {
tempBigInt := new(big.Int)
tempBigInt.SetString(value, 10)
tempCert := pkix.RevokedCertificate{
SerialNumber: tempBigInt,
RevocationTime: time.Now(),
}
revokedCerts = append(revokedCerts, tempCert)
}
key, err := helpers.ParsePrivateKeyPEM([]byte(req.PrivateKey))
if err != nil {
log.Debug("Malformed private key %v", err)
return errors.NewBadRequestString("Malformed Private Key")
}
result, err := cert.CreateCRL(rand.Reader, key, revokedCerts, time.Now(), newExpiryTime)
return api.SendResponse(w, result)
}
// NewHandler returns a new http.Handler that handles a crl generation request.
func NewHandler() http.Handler {
return api.HTTPHandler{
Handler: api.HandlerFunc(crlHandler),
Methods: []string{"POST"},
}
}
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