Add tianyiwuxian support (#67)

* 添加`天毅无线`的支持

* fix CS.

* remove unused import.

README.md

@@ -46,6 +46,7 @@
 - [华信短信平台](http://www.ipyy.com/)
 - [253云通讯（创蓝）](https://www.253.com/)
 - [融云](http://www.rongcloud.cn)
+- [天毅无线](http://www.85hu.com/)
 
 
 ## 环境需求
@@ -391,6 +392,18 @@ $easySms->send(13188888888, $message);
     ]
 ```
 
+### [天毅无线](http://www.85hu.com/)
+
+短信内容使用 `content`
+
+```php
+    'tianyiwuxian' => [
+        'username' => '', //用户名
+        'password' => '', //密码
+        'gwid' => '', //网关ID
+    ]
+```
+
 ## License
 
 MIT

src/Gateways/TianyiwuxianGateway.php

+<?php
+
+/*
+ * This file is part of the overtrue/easy-sms.
+ *
+ * (c) overtrue <i@overtrue.me>
+ *
+ * This source file is subject to the MIT license that is bundled
+ * with this source code in the file LICENSE.
+ */
+
+namespace Overtrue\EasySms\Gateways;
+
+use Overtrue\EasySms\Contracts\MessageInterface;
+use Overtrue\EasySms\Exceptions\GatewayErrorException;
+use Overtrue\EasySms\Support\Config;
+use Overtrue\EasySms\Traits\HasHttpRequest;
+
+/**
+ * Class TianyiwuxianGateway.
+ *
+ * @author Darren Gao <realgaodacheng@gmail.com>
+ */
+class TianyiwuxianGateway extends Gateway
+{
+    use HasHttpRequest;
+
+    const ENDPOINT_TEMPLATE = 'http://jk.106api.cn/sms%s.aspx';
+
+    const ENDPOINT_ENCODE = 'UTF8';
+
+    const ENDPOINT_TYPE = 'send';
+
+    const ENDPOINT_FORMAT = 'json';
+
+    const SUCCESS_STATUS = 'success';
+
+    const SUCCESS_CODE = '0';
+
+    /**
+     * @param array|int|string                             $to
+     * @param \Overtrue\EasySms\Contracts\MessageInterface $message
+     * @param \Overtrue\EasySms\Support\Config             $config
+     *
+     * @return array
+     *
+     * @throws \Overtrue\EasySms\Exceptions\GatewayErrorException;
+     */
+    public function send($to, MessageInterface $message, Config $config)
+    {
+        $endpoint = $this->buildEndpoint();
+
+        $params = [
+            'gwid' => $config->get('gwid'),
+            'type' => self::ENDPOINT_TYPE,
+            'rece' => self::ENDPOINT_FORMAT,
+            'mobile' => $to,
+            'message' => $message->getContent(),
+            'username' => $config->get('username'),
+            'password' => strtoupper(md5($config->get('password'))),
+        ];
+
+        $result = $this->post($endpoint, $params);
+
+        $result = json_decode($result, true);
+
+        if (self::SUCCESS_STATUS !== $result['returnstatus'] || self::SUCCESS_CODE !== $result['code']) {
+            throw new GatewayErrorException($result['remark'], $result['code']);
+        }
+
+        return $result;
+    }
+
+    /**
+     * Build endpoint url.
+     *
+     * @return string
+     */
+    protected function buildEndpoint()
+    {
+        return sprintf(self::ENDPOINT_TEMPLATE, self::ENDPOINT_ENCODE);
+    }
+}