Handle the duration field as string

Signed-off-by: Sidharth Surana <[email protected]>

Author: sidharthsurana

govc/test/vcsim.bats

@@ -644,7 +644,7 @@ EOF
   csr="${output//$'\n'/\\n}"
 
   run govc session.login -r -X POST /rest/vcenter/certificate-authority/sign-cert <<EOF
-{ "csr": "$csr", "duration": 30}
+{ "csr": "$csr", "duration": "30"}
 EOF
   assert_success
 

vapi/simulator/simulator.go

@@ -628,7 +628,7 @@ func (s *handler) certificateAuthority(w http.ResponseWriter, r *http.Request) {
 		}
 
 		var req struct {
-			Duration int64  `json:"duration"`
+			Duration string `json:"duration"`
 			CSR      string `json:"csr"`
 		}
 
@@ -639,6 +639,11 @@ func (s *handler) certificateAuthority(w http.ResponseWriter, r *http.Request) {
 				BadRequest(w, err.Error())
 				return
 			}
+			duration, err := strconv.ParseInt(req.Duration, 10, 64)
+			if err != nil {
+				BadRequest(w, err.Error())
+				return
+			}
 
 			serialNumber, _ := rand.Int(rand.Reader, new(big.Int).Lsh(big.NewInt(1), 128))
 			now := time.Now()
@@ -648,7 +653,7 @@ func (s *handler) certificateAuthority(w http.ResponseWriter, r *http.Request) {
 				DNSNames:       csr.DNSNames,
 				IPAddresses:    csr.IPAddresses,
 				NotBefore:      now,
-				NotAfter:       now.Add(time.Hour * 24 * time.Duration(req.Duration)),
+				NotAfter:       now.Add(time.Hour * 24 * time.Duration(duration)),
 				AuthorityKeyId: signer.Leaf.SubjectKeyId,
 			}