/**
* 设置缓存文件前缀
*
* @return void
*/
public function boot()
{
$this->filePrefix = Wechat::getOption('appId');
}
/**
* 设置图片
*
* @param string $path
*
* @return Image
*/
public function media($path)
{
$this->setAttribute('media_id', Wechat::media()->image($path));
return $this;
}
/**
* 获取用户所在的组
*
* @param string $openId
*
* @return integer
*/
public function getGroup($openId)
{
$params = array('openid' => $openId);
$response = Wechat::request('POST', self::API_GROUP, $params);
return $response['groupid'];
}
/**
* 删除菜单
*
* @return boolean
*/
public function delete()
{
Wechat::request('GET', self::API_DELETE);
return true;
}
/**
* 发送消息
*
* @param string $openId
*
* @return boolean
*/
public function to($openId)
{
if (empty($this->message)) {
throw new Exception("未设置要发送的消息");
}
$this->message->to = $openId;
Wechat::request('POST', self::API_MESSAGE_SEND, $this->message->buildForStaff());
return true;
}
/**
* 下载媒体文件
*
* @param string $mediaId
* @param string $filename
*
* @return mixed
*/
public function download($mediaId, $filename = '')
{
$params = array('media_id' => $mediaId);
$contents = Wechat::request('GET', self::API_GET, $params);
return $filename ? $contents : file_put_contents($filename, $contents);
}
/**
* 批量移动用户
*
* @param array $openIds
* @param integer $groupId
*
* @return boolean
*/
public function moveUsers(array $openIds, $groupId)
{
$params = array('openid_list' => $openIds, 'to_groupid' => $groupId);
Wechat::request('POST', self::API_MEMBER_BATCH_UPDATE, $params);
return true;
}
/**
* 设置音乐消息封面图
*
* @param string $path
*
* @return Music
*/
public function thumb($path)
{
$this->setAttribute('thumb_media_id', Wechat::media()->thumb($path));
return $this;
}
/**
* 静态访问
*
* @param string $method
* @param array $args
*
* @return mixed
*/
public static function __callStatic($method, $args)
{
self::requireInstance();
return self::$instance->__call($method, $args);
}
/**
* 检验消息的真实性，并且获取解密后的明文.
* <ol>
* <li>利用收到的密文生成安全签名，进行签名验证</li>
* <li>若验证通过，则提取xml中的加密消息</li>
* <li>对消息进行解密</li>
* </ol>
*
* @param string $msgSignature 签名串，对应URL参数的msg_signature
* @param string $timestamp 时间戳 对应URL参数的timestamp
* @param string $nonce 随机串，对应URL参数的nonce
* @param string $postXML 密文，对应POST请求的数据
* @param string &$msg 解密后的原文，当return返回0时有效
*
* @return array
*/
public function decryptMsg($msgSignature, $nonce, $timestamp, $postXML)
{
//提取密文
$array = XML::parse($postXML);
if (empty($array)) {
throw new Exception('Invalid xml.', self::ERROR_PARSE_XML);
}
$encrypted = $array['Encrypt'];
//验证安全签名
$signature = $this->getSHA1(Wechat::getOption('token'), $timestamp, $nonce, $encrypted);
if ($signature != $msgSignature) {
throw new Exception('Invalid Signature.', self::ERROR_INVALID_SIGNATURE);
}
return XML::parse($this->decrypt($encrypted, Wechat::getOption('appId')));
}
/**
* 通过code授权
*
* @param string $code
*
* @return array
*/
protected function authorize($code)
{
if ($this->authResult) {
return $this->authResult;
}
// 关闭自动加access_token参数
Wechat::autoRequestToken(false);
$params = array('appid' => Wechat::getOption('appId'), 'secret' => Wechat::getOption('secret'), 'code' => $code, 'grant_type' => 'authorization_code');
$authResult = Wechat::request('GET', self::API_TOKEN_GET, $params);
// 开启自动加access_token参数
Wechat::autoRequestToken(true);
//TODO:refresh_token机制
return $this->authResult = $authResult;
}