添加小程序支持 (#564)

* 添加小程序支持
使用微信一致的命名 `mini_program`；
暂实现 session_key 和 access_token 的获取。

* fix styles

src/Foundation/Application.php

@@ -68,6 +68,7 @@
  * @property \EasyWeChat\ShakeAround\ShakeAround         $shakearound
  * @property \EasyWeChat\User\MiniAppUser                $mini_app_user
  * @property \EasyWeChat\OpenPlatform\OpenPlatform       $open_platform
+ * @property \EasyWeChat\MiniProgram\MiniProgram         $mini_program
  */
 class Application extends Container
 {
@@ -98,6 +99,7 @@ class Application extends Container
         ServiceProviders\ShakeAroundServiceProvider::class,
         ServiceProviders\MiniAppUserServiceProvider::class,
         ServiceProviders\OpenPlatformServiceProvider::class,
+        ServiceProviders\MiniProgramServiceProvider::class,
     ];
 
     /**

src/Foundation/ServiceProviders/MiniProgramServiceProvider.php

@@ -0,0 +1,62 @@
+<?php
+
+/*
+ * This file is part of the overtrue/wechat.
+ *
+ * (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.
+ */
+
+/**
+ * MiniProgramServiceProvider.php.
+ *
+ * This file is part of the wechat.
+ *
+ * (c) mingyoung <mingyoungcheung@gmail.com>
+ *
+ * This source file is subject to the MIT license that is bundled
+ * with this source code in the file LICENSE.
+ */
+
+namespace EasyWeChat\Foundation\ServiceProviders;
+
+use EasyWeChat\MiniProgram\AccessToken;
+use EasyWeChat\MiniProgram\MiniProgram;
+use Pimple\Container;
+use Pimple\ServiceProviderInterface;
+
+/**
+ * Class MiniProgramServiceProvider.
+ */
+class MiniProgramServiceProvider implements ServiceProviderInterface
+{
+    /**
+     * Registers services on the given container.
+     *
+     * This method should only be used to configure services and parameters.
+     * It should not get services.
+     *
+     * @param Container $pimple A container instance
+     */
+    public function register(Container $pimple)
+    {
+        $pimple['mini_program_access_token'] = function ($pimple) {
+            $config = $pimple['config']->get('mini_program');
+
+            return new AccessToken(
+                $config['app_id'],
+                $config['secret'],
+                $pimple['cache']
+            );
+        };
+
+        $pimple['mini_program'] = function ($pimple) {
+            return new MiniProgram(
+                $pimple['mini_program_access_token'],
+                $pimple['config']->get('mini_program')
+            );
+        };
+    }
+}

src/Foundation/ServiceProviders/OpenPlatformServiceProvider.php

@@ -31,7 +31,7 @@
 use Pimple\ServiceProviderInterface;
 
 /**
- * Class BroadcastServiceProvider.
+ * Class OpenPlatformServiceProvider.
  */
 class OpenPlatformServiceProvider implements ServiceProviderInterface
 {

src/MiniProgram/AccessToken.php

@@ -0,0 +1,36 @@
+<?php
+
+/*
+ * This file is part of the overtrue/wechat.
+ *
+ * (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.
+ */
+
+/**
+ * AccessToken.php.
+ *
+ * Part of Overtrue\WeChat.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ * @author    mingyoung <mingyoungcheung@gmail.com>
+ * @copyright 2016
+ *
+ * @see      https://github.com/overtrue
+ * @see      http://overtrue.me
+ */
+
+namespace EasyWeChat\MiniProgram;
+
+use EasyWeChat\Core\AccessToken as CoreAccessToken;
+
+/**
+ * Class AccessToken.
+ */
+class AccessToken extends CoreAccessToken
+{
+}

src/MiniProgram/MiniProgram.php

@@ -0,0 +1,79 @@
+<?php
+
+/*
+ * This file is part of the overtrue/wechat.
+ *
+ * (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.
+ */
+
+/**
+ * MiniProgram.php.
+ *
+ * Part of Overtrue\WeChat.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ * @author    mingyoung <mingyoungcheung@gmail.com>
+ * @copyright 2016
+ *
+ * @see      https://github.com/overtrue
+ * @see      http://overtrue.me
+ */
+
+namespace EasyWeChat\MiniProgram;
+
+use EasyWeChat\Core\AbstractAPI;
+
+/**
+ * Class MiniProgram.
+ */
+class MiniProgram extends AbstractAPI
+{
+    /**
+     * Api.
+     */
+    const JSCODE_TO_SESSION = 'https://api.weixin.qq.com/sns/jscode2session';
+
+    /**
+     * Mini program config.
+     *
+     * @var array
+     */
+    protected $config;
+
+    /**
+     * MiniProgram constructor.
+     *
+     * @param \EasyWeChat\MiniProgram\AccessToken $accessToken
+     * @param array                               $config
+     */
+    public function __construct($accessToken, $config)
+    {
+        parent::__construct($accessToken);
+
+        $this->config = $config;
+    }
+
+    /**
+     * JsCode 2 session key.
+     *
+     * @param string $jsCode
+     *
+     * @return \EasyWeChat\Support\Collection
+     */
+    public function getSessionKey($jsCode)
+    {
+        $params = [
+            'appid' => $this->config['app_id'],
+            'secret' => $this->config['secret'],
+            'js_code' => $jsCode,
+            'grant_type' => 'authorization_code',
+        ];
+
+        return $this->parseJSON('GET', [self::JSCODE_TO_SESSION, $params]);
+    }
+}