3.2版七牛云存储文件

利用七牛云私有空间存储文件
第一步，注册七牛云，创建空间，将空间设为私有
需要记下的东西：
AK，SK，bucket
第二步配置ThinkPHP
在config.php添加'UPLOAD_SITEIMG_QINIU' => array (
'maxSize' => 5 * 1024 * 1024,//文件大小
'rootPath' => './',
'saveName' => array ('uniqid', ''),
'driver' => 'Qiniu',
'driverConfig' => array (
'secrectKey' => '',
'accessKey' => '',
'domain' => '.qiniudn.com',
'bucket' => '',
)第三步，上传文件
控制器$setting=C('UPLOAD_SITEIMG_QINIU');
$Upload = new \Think\Upload($setting);
$info = $Upload->upload($_FILES);上传文件后得到的$info是这样的 array(1) {
["photo"] => array(10) {
["name"] =>
["type"] =>
["size"] =>
["key"] =>"
["ext"] =>
["sha1"] =>
["savename"] =>
["savepath"] =>
["url"] =>
}
}第四步，计算下载凭证
Common目录function.php添加方法function Qiniu_Encode($str) // URLSafeBase64Encode
{
$find = array('+', '/');
$replace = array('-', '_');
return str_replace($find, $replace, base64_encode($str));
}
function Qiniu_Sign($url) {//$info里面的url
$setting = C ( 'UPLOAD_SITEIMG_QINIU' );
$duetime = NOW_TIME + 86400;//下载凭证有效时间
$DownloadUrl = $url . '?e=' . $duetime;
$Sign = hash_hmac ( 'sha1', $DownloadUrl, $setting ["driverConfig"] ["secrectKey"], true );
$EncodedSign = Qiniu_Encode ( $Sign );
$Token = $setting ["driverConfig"] ["accessKey"] . ':' . $EncodedSign;
$RealDownloadUrl = $DownloadUrl . '&token=' . $Token;
return $RealDownloadUrl;
} $RealDownloadUrl为下载对应私有资源的可用URL
参考
http://document.thinkphp.cn/manual_3_2.html#upload
http://developer.qiniu.com/docs/v6/api/reference/security/download-token.html

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