客户端请求时将透传IP与代理信息，以确保服务方可以获取到正确的IP地址

src/base/Client.php

@@ -184,6 +184,20 @@ class Client
 			CURLOPT_USERAGENT => $userAgent
 		]);
 
+		//IP 透传
+		if (isset($_SERVER['REMOTE_ADDR'])) {
+			$clientIp = !empty($_SERVER['HTTP_CLIENT_IP']) ? $_SERVER['HTTP_CLIENT_IP'] : $_SERVER['REMOTE_ADDR'];
+			$headers[] = 'Client-IP: ' . $clientIp;
+
+			$forwardedFor = !empty($_SERVER['HTTP_X_FORWARDED_FOR']) ? $_SERVER['HTTP_X_FORWARDED_FOR'] :
+				($_SERVER['REMOTE_ADDR'] != $_SERVER['SERVER_ADDR'] ? $_SERVER['REMOTE_ADDR'] : '');
+
+			if ($forwardedFor && $forwardedFor != $clientIp) {
+				$forwardedFor .= ','.$_SERVER['SERVER_ADDR'];
+				$headers[] = 'X-Forwarded-For: '.$forwardedFor;
+			}
+		}
+
 		//POST 请求
 		if ($post) {
 			$body = is_array($post) ? http_build_query($post) : $post;
@@ -194,7 +208,7 @@ class Client
 		}
 
 		//优化
-		$headers[] = 'Expect:';
+		$headers[] = 'Expect: ';
 
 		curl_setopt_array($ci, [
 			CURLOPT_HTTPHEADER => $headers,