<?php namespace app\api\controller; use app\common\controller\Api; use think\Db; /** * oss上传接口 */ class Upload extends Api { protected $noNeedLogin = ['gmt_iso8601','signedUrl','callBack']; protected $noNeedRight = ['*']; public function gmt_iso8601($time) { $expiration = date(DATE_ISO8601,$time); $pos = strpos($expiration, '+'); $expiration = substr($expiration, 0, $pos); return $expiration."Z"; } /** * 获取签名 * @return array */ public function signedUrl(){ $config = config("oss"); $id= $config["secretId"]; // 请填写您的AccessKeyId。 $key= $config["secretKey"]; // 请填写您的AccessKeySecret。 // $host的格式为 bucketname.endpoint,请替换为您的真实信息。(在阿里云中可配置) $host = $config["bucket"].".".$config["endPoint"]; // $callbackUrl为上传回调服务器的URL,请将下面的IP和Port配置为您自己的真实URL信息。下面有callBack方法 $callbackUrl = config('website_url').'/api/upload/callBack'; $dir = 'images/'; // 用户上传文件时指定的前缀。 $dir = 'uploads/'.date('Ymd').'/'; // 用户上传文件时指定的前缀。 $callback_param = array('callbackUrl'=>$callbackUrl, 'callbackBody'=>'filename=${object}&size=${size}&mimeType=${mimeType}&height=${imageInfo.height}&width=${imageInfo.width}', 'callbackBodyType'=>"application/x-www-form-urlencoded"); $callback_string = json_encode($callback_param); $base64_callback_body = base64_encode($callback_string); $now = time(); $expire = 3000; //设置该policy超时时间是10s. 即这个policy过了这个有效时间,将不能访问。 $end = $now + $expire; $expiration = $this->gmt_iso8601($end); //最大文件大小.用户可以自己设置 $condition = array(0=>'content-length-range', 1=>0, 2=>1048576000); $conditions[] = $condition; // 表示用户上传的数据,必须是以$dir开始,不然上传会失败,这一步不是必须项,只是为了安全起见,防止用户通过policy上传到别人的目录。 $start = array(0=>'starts-with', 1=>'$key', 2=>$dir); $conditions[] = $start; $arr = array('expiration'=>$expiration,'conditions'=>$conditions); $policy = json_encode($arr); $base64_policy = base64_encode($policy); $string_to_sign = $base64_policy; $signature = base64_encode(hash_hmac('sha1', $string_to_sign, $key, true)); $response = []; $response['accessid'] = $id; // $response['host'] = $host; $response['policy'] = $base64_policy; $response['signature'] = $signature; // $response['expire'] = $end; // $response['callback'] = $base64_callback_body; // $response['dir'] = $dir; // 这个参数是设置用户上传文件时指定的前缀。 $response['bucket'] = $config["url"]; $response['fileurl'] = 'uploads/'.date('Ymd').'/'; $this->success("获取成功!",$response); } //回调函数 public function callBack(){ header("Content-Type: application/json"); $data = array("Status"=>"Ok",'data'=>$_POST); echo json_encode($data); } }