whereIn('name', 'wechat_app_id,wechat_app_secret,wechat_token,wechat_encodingkey') ->select(); foreach ($wechat_temp as $key => $value) { $this->wechat[$value['name']] = $value['value']; } // 初始化EasyWeChat $config = [ 'app_id' => $this->wechat['wechat_app_id'], 'secret' => $this->wechat['wechat_app_secret'], 'token' => $this->wechat['wechat_token'], 'aes_key' => $this->wechat['wechat_encodingkey'], /*'log' => [ 'level' => 'debug', 'file' => RUNTIME_PATH . 'log/kefu_wechat.log', ],*/ ]; $this->wechatapp = Factory::miniProgram($config); } /** * 将公众平台回复用户的消息加密打包. *
    *
  1. 对要发送的消息进行AES-CBC加密
  2. *
  3. 生成安全签名
  4. *
  5. 将消息密文和安全签名打包成xml格式
  6. *
* * @param $replyMsg string 公众平台待回复用户的消息,xml格式的字符串 * @param $timeStamp string 时间戳,可以自己生成,也可以用URL参数的timestamp * @param $nonce string 随机串,可以自己生成,也可以用URL参数的nonce * @param &$encryptMsg string 加密后的可以直接回复用户的密文,包括msg_signature, timestamp, nonce, encrypt的xml格式的字符串, * 当return返回0时有效 * * @return int 成功0,失败返回对应的错误码 */ public function encryptMsg($replyMsg, $timeStamp, $nonce, &$encryptMsg) { $pc = new Prpcrypt($this->wechat['wechat_encodingkey']); //加密 $array = $pc->encrypt($replyMsg, $this->wechat['wechat_app_id']); $ret = $array[0]; if ($ret != 0) { return $ret; } if ($timeStamp == null) { $timeStamp = time(); } $encrypt = $array[1]; //生成安全签名 $sha1 = new SHA1; $array = $sha1->getSHA1($this->wechat['wechat_token'], $timeStamp, $nonce, $encrypt); $ret = $array[0]; if ($ret != 0) { return $ret; } $signature = $array[1]; //生成发送的xml $xmlparse = new XMLParse; $encryptMsg = $xmlparse->generate($encrypt, $signature, $timeStamp, $nonce); return ErrorCode::$OK; } /** * 检验消息的真实性,并且获取解密后的明文. *
    *
  1. 利用收到的密文生成安全签名,进行签名验证
  2. *
  3. 若验证通过,则提取xml中的加密消息
  4. *
  5. 对消息进行解密
  6. *
* * @param $msgSignature string 签名串,对应URL参数的msg_signature * @param $timestamp string 时间戳 对应URL参数的timestamp * @param $nonce string 随机串,对应URL参数的nonce * @param $postData string 密文,对应POST请求的数据 * @param &$msg string 解密后的原文,当return返回0时有效 * * @return int 成功0,失败返回对应的错误码 */ public function decryptMsg($msgSignature, $timestamp = null, $nonce, $encrypt, &$msg) { if (strlen($this->wechat['wechat_encodingkey']) != 43) { return ErrorCode::$IllegalAesKey; } $pc = new Prpcrypt($this->wechat['wechat_encodingkey']); if ($timestamp == null) { $timestamp = time(); } //验证安全签名 $sha1 = new SHA1; $array = $sha1->getSHA1($this->wechat['wechat_token'], $timestamp, $nonce, $encrypt); $ret = $array[0]; if ($ret != 0) { return $ret; } $signature = $array[1]; if ($signature != $msgSignature) { return ErrorCode::$ValidateSignatureError; } $result = $pc->decrypt($encrypt, $this->wechat['wechat_app_id']); if ($result[0] != 0) { return $result[0]; } $msg = $result[1]; return ErrorCode::$OK; } /** * 保存用户发送的图片至服务器 * @param [type] $media_id 临时素材ID * @param string $save_dir 保存目录 * @return string 文件完整路径 */ public function saveImg($media_id, $save_dir = './uploads/') { $stream = $this->wechatapp->media->get($media_id); if ($stream instanceof \EasyWeChat\Kernel\Http\StreamResponse) { $save_dir = $save_dir . date('Ymd') . '/'; if (!is_dir($save_dir)) { if (!mkdir($save_dir, 0777, true)) { return false; } } $filename = $stream->save($save_dir); return $save_dir . $filename; } else { return false; } } /** * 发送消息至小程序用户 * @param [type] $message 文本或消息对象 * @param [type] $openid [description] * @param [type] $sender 带标识的发送人 * @return [type] [description] */ public function sendMessage($message, $openid, $sender = false) { $res = $this->wechatapp->customer_service->message($message)->to($openid)->send(); switch ($res['errcode']) { case '-1': $msg = '发送失败,系统繁忙,请重试!'; break; case '40001': $msg = '发送失败,AppSecret错误!'; break; case '40002': $msg = '发送失败,凭证不合法!'; break; case '40003': $msg = '发送失败,openid不合法!'; break; case '45015': $msg = '发送失败,回复时间超限制!'; break; case '45047': $msg = '发送条数超限,用户将不会收到此消息!'; break; case '48001': $msg = '请确保小程序已获取发送客服消息功能的API权限!'; break; default: $msg = ''; break; } // 只在workerman环境(客服发送消息时),进行提示 if (class_exists('\GatewayWorker\Lib\Gateway') && $msg && $sender) { Gateway::sendToUid($sender, json_encode([ 'code' => 0, 'msgtype' => 'show_msg', 'msg' => $msg, ])); } return true; } /** * 建立用户->分配客服 * @param [type] $open_id [description] * @return [type] [description] */ public function userInitialize($open_id) { $kefu_user = Db::name('kefu_user')->where('wechat_openid', $open_id)->find(); if (!$kefu_user) { // 建立用户 $tourists_max_id = Db::name('kefu_user')->max('id'); $kefu_user = [ 'avatar' => '', // 随机头像->算了算了 'nickname' => '小程序用户 ' . $tourists_max_id, 'wechat_openid' => $open_id, 'createtime' => time(), ]; if (Db::name('kefu_user')->insert($kefu_user)) { $kefu_user['id'] = Db::name('kefu_user')->getLastInsID(); } } // 查询之前的客服代表 $session = Db::name('kefu_session') ->alias('s') ->field('s.*,a.id as admin_id,a.nickname') ->join('admin a', 's.csr_id=a.id') ->where('s.user_id', $kefu_user['id']) ->where('s.deletetime', null) ->find(); // 有客服代表,但客服代表不在线,重新分配 $is_csr_distribution = false; if ($session) { $csr_status = Db::name('kefu_csr_config')->where('admin_id', $session['admin_id'])->value('status'); if ($csr_status != 3) { $is_csr_distribution = true; } } if (!$session || $is_csr_distribution) { // 客服分配 $csr = Common::getAppropriateCsr(); if ($csr) { $session = Common::distributionCsr($csr, $kefu_user['id'] . '||user'); } else { $data = [ 'session' => false, 'kefu_user' => $kefu_user, 'code' => 1, 'msg' => '非常抱歉,当前无在线客服,您可以直接在此留言,谢谢您的支持!', ]; return $data; } } if ($session) { // 记录客服接待人数 Db::name('kefu_csr_config')->where('admin_id', $session['admin_id'])->inc('reception_count')->update([ 'last_reception_time' => time(), ]); $data = [ 'session' => $session, 'kefu_user' => $kefu_user, 'code' => 2, ]; return $data; } else { $data = [ 'session' => false, 'code' => 0, 'msg' => '分配客服代表失败!', ]; return $data; } } }