Merge pull request #473 from orangeholic/master

`tencentcloud_cdn_domain` fix   incorrect setting case crash.

Author: oliverpei

CHANGELOG.md

@@ -1,5 +1,9 @@
 ## 1.39.0 (Unreleased)
 
+BUG FIXES:
+
+* Resource: `tencentcloud_cdn_domain` fix incorrect setting `server_certificate_config`,`client_certificate_config` caused the program to crash.
+
 ENHANCEMENTS:
 
 * Data Source: `tencentcloud_images` supports list of snapshots.

tencentcloud/resource_tc_cdn_domain.go

@@ -374,7 +374,7 @@ func resourceTencentCloudCdnDomainCreate(d *schema.ResourceData, meta interface{
 			request.Https.VerifyClient = helper.String(config["verify_client"].(string))
 			if v := config["server_certificate_config"]; len(v.([]interface{})) > 0 {
 				serverCerts := v.([]interface{})
-				if len(serverCerts) > 0 {
+				if len(serverCerts) > 0 && serverCerts[0] != nil {
 					serverCert := serverCerts[0].(map[string]interface{})
 					request.Https.CertInfo = &cdn.ServerCert{}
 					if v := serverCert["certificate_id"]; v.(string) != "" {
@@ -393,7 +393,7 @@ func resourceTencentCloudCdnDomainCreate(d *schema.ResourceData, meta interface{
 			}
 			if v := config["client_certificate_config"]; len(v.([]interface{})) > 0 {
 				clientCerts := v.([]interface{})
-				if len(clientCerts) > 0 {
+				if len(clientCerts) > 0 && clientCerts[0] != nil {
 					clientCert := clientCerts[0].(map[string]interface{})
 					request.Https.ClientCertInfo = &cdn.ClientCert{}
 					if v := clientCert["certificate_content"]; v.(string) != "" {
@@ -663,7 +663,7 @@ func resourceTencentCloudCdnDomainUpdate(d *schema.ResourceData, meta interface{
 			request.Https.VerifyClient = helper.String(config["verify_client"].(string))
 			if v := config["server_certificate_config"]; len(v.([]interface{})) > 0 {
 				serverCerts := v.([]interface{})
-				if len(serverCerts) > 0 {
+				if len(serverCerts) > 0 && serverCerts[0] != nil {
 					serverCert := serverCerts[0].(map[string]interface{})
 					request.Https.CertInfo = &cdn.ServerCert{}
 					if v := serverCert["certificate_id"]; v.(string) != "" {
@@ -682,7 +682,7 @@ func resourceTencentCloudCdnDomainUpdate(d *schema.ResourceData, meta interface{
 			}
 			if v := config["client_certificate_config"]; len(v.([]interface{})) > 0 {
 				clientCerts := v.([]interface{})
-				if len(clientCerts) > 0 {
+				if len(clientCerts) > 0 && clientCerts[0] != nil {
 					clientCert := clientCerts[0].(map[string]interface{})
 					request.Https.ClientCertInfo = &cdn.ClientCert{}
 					if v := clientCert["certificate_content"]; v.(string) != "" {