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49 lines
1.1 KiB
49 lines
1.1 KiB
7 years ago
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<?php
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/**
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* Signature create related functions.
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*/
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namespace QcloudImage;
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/**
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* Auth class for creating reusable signature.
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*/
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class Auth {
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public function __construct($appId, $secretId, $secretKey) {
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$this->appId = $appId;
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$this->secretId = $secretId;
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$this->secretKey = $secretKey;
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}
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/**
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* Return the appId
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*/
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public function getAppId() {
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return $this->appId;
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}
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/**
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* Create reusable signature.
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* This signature will expire at time()+$howlong timestamp.
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* Return the signature on success.
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* Return false on fail.
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*/
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public function getSign($bucket, $howlong = 30) {
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if ($howlong <= 0) {
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return false;
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}
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$now = time();
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$expiration = $now + $howlong;
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$random = rand();
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$plainText = "a=".$this->appId."&b=$bucket&k=".$this->secretId."&e=$expiration&t=$now&r=$random&f=";
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$bin = hash_hmac('SHA1', $plainText, $this->secretKey, true);
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return base64_encode($bin.$plainText);
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}
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private $appId = "";
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private $secretId = "";
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private $secretKey = "";
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}
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