add wechaty ca, see #16

Author: zhangchunsheng

README.md

@@ -84,6 +84,8 @@ For Puppet Client:
 | `WECHATY_PUPPET_SERVICE_TLS_SERVER_NAME` | `options.serverName` | Server Name (mast match for SNI) |
 | `WECHATY_PUPPET_SERVICE_NO_TLS_INSECURE_CLIENT` | `options.tls.disable` | Set `true` to disable client TLS |
 
+> Learn more about tls at https://github.com/wechaty/puppet-service
+
 ## The World's Shortest PHP ChatBot: 8 lines of Code
 
 ### php

wechaty-puppet-service/IO/Github/Wechaty/PuppetService/PuppetService.php

@@ -795,10 +795,19 @@ function ($metadata,
         // WECHATY_PUPPET_SERVICE_NO_TLS_INSECURE_CLIENT
         // WECHATY_PUPPET_SERVICE_TLS_CA_CERT
         // WECHATY_PUPPET_SERVICE_TLS_SERVER_NAME
-        $this->_grpcClient = new \Wechaty\PuppetClient($hostname, [
-            'credentials' => \Grpc\ChannelCredentials::createInsecure(),
-            'update_metadata' => $updateMetadata,
-        ]);
+        $noTls = getenv("WECHATY_PUPPET_SERVICE_NO_TLS_INSECURE_CLIENT");
+        if($noTls) {
+            $this->_grpcClient = new \Wechaty\PuppetClient($hostname, [
+                'credentials' => \Grpc\ChannelCredentials::createInsecure(),
+                'update_metadata' => $updateMetadata,
+            ]);
+        } else {
+            $this->_grpcClient = new \Wechaty\PuppetClient($hostname, [
+                'credentials' => \Grpc\ChannelCredentials::createInsecure(),
+                'update_metadata' => $updateMetadata,
+            ]);
+        }
+
         return $this->_grpcClient;
     }