仓库初始化

2025-08-13 10:43:56 +08:00
commit e8f9b46680
5180 changed files with 859303 additions and 0 deletions
--- a/extend/Yzh/Utils/Des.php
+++ b/extend/Yzh/Utils/Des.php
@@ -0,0 +1,143 @@
+<?php
+
+namespace Yzh\Utils;
+
+use Yzh\Exception\RunTimeException;
+use Yzh\Exception\ExceptionCode;
+
+class Des
+{
+    private $des3_key; // 密钥向量
+    private $iv; // 混淆向量
+    private $mode = 'cbc';
+
+    /**
+     * 构造，传递二个已经进行 base64_encode 的 KEY 与 IV
+     * @param $des3key
+     * @param null $iv
+     */
+    function __construct($des3key, $iv = null)
+    {
+        $this->des3_key = $des3key;
+        $this->iv = $iv;
+    }
+
+    /**
+     * 加密
+     * @param $value
+     * @return string
+     * @throws RunTimeException
+     */
+    public function encrypt($value)
+    {
+        // 兼容5.3以前版本
+        if (version_compare(PHP_VERSION, '5.3.0', '<')) {
+            return $this->encrypt5($value);
+        }
+        $iv  = substr($this->des3_key, 0, 8);
+        $ret = openssl_encrypt($value, 'DES-EDE3-CBC', $this->des3_key, 0, $iv);
+        if (false === $ret) {
+            $errMsg = "DES encrypt err";
+            while ($errStr = openssl_error_string()) {
+                $errMsg = $errStr;
+            }
+            throw new RunTimeException($errMsg, ExceptionCode::DES_KEY_ENCRYPT_FAIL);
+        }
+        return $ret;
+    }
+
+    /**
+     * 解密
+     * @param $value
+     * @return bool|false|string
+     * @throws RunTimeException
+     */
+    public function decrypt($value)
+    {
+        // 兼容5.3以前版本
+        if (version_compare(PHP_VERSION, '5.3.0', '<')) {
+            return $this->decrypt5($value);
+        }
+        $iv  = substr($this->des3_key, 0, 8);
+        $ret = openssl_decrypt($value, 'DES-EDE3-CBC', $this->des3_key, 0, $iv);
+        if (false === $ret) {
+            $errMsg = "DES decrypt err";
+            while ($errStr = openssl_error_string()) {
+                $errMsg = $errStr;
+            }
+            throw new RunTimeException($errMsg, ExceptionCode::DES_KEY_DECRYPT_FAIL);
+        }
+        return $ret;
+    }
+
+    /**
+     * 加密 5.3以前版本
+     * @param $value
+     * @return bool|false|string
+     */
+    private function encrypt5($value)
+    {
+        $td = mcrypt_module_open("tripledes", '', $this->mode, '');
+        $iv = substr($this->des3_key, 0, 8);
+        $value = $this->paddingPKCS7($value);
+        if (false === $value) {
+            return openssl_error_string();
+        }
+        @mcrypt_generic_init($td, $this->des3_key, $iv);
+        $dec = mcrypt_generic($td, $value);
+        $ret = base64_encode($dec);
+        mcrypt_generic_deinit($td);
+        mcrypt_module_close($td);
+        return $ret;
+    }
+
+    /**
+     * 解密 5.3以前版本
+     * @param $value
+     * @return bool|false|string
+     */
+    private function decrypt5($value)
+    {
+        $td = mcrypt_module_open("tripledes", '', $this->mode, '');
+        $iv = substr($this->des3_key, 0, 8);
+        @mcrypt_generic_init($td, $this->des3_key, $iv);
+        $ret = trim(mdecrypt_generic($td, base64_decode($value)));
+        $ret = $this->unPaddingPKCS7($ret);
+        mcrypt_generic_deinit($td);
+        mcrypt_module_close($td);
+        return $ret;
+    }
+
+    /**
+     * 填充
+     * @param $value
+     * @return bool|false|string
+     */
+    private function paddingPKCS7($value)
+    {
+        $blockSize = mcrypt_get_block_size('tripledes', $this->mode);
+        if (false === $blockSize) {
+            return false;
+        }
+        $paddingChar = $blockSize - (strlen($value) % $blockSize);
+        $value .= str_repeat(chr($paddingChar), $paddingChar);
+        return $value;
+    }
+
+    /**
+     * 去掉填充
+     * @param $value
+     * @return bool|false|string
+     */
+    private function unPaddingPKCS7($value)
+    {
+        $pad = ord($value[strlen($value) - 1]);
+        if ($pad > strlen($value)) {
+            return false;
+        }
+        if (strspn($value, chr($pad), strlen($value) - $pad) != $pad) {
+            return false;
+        }
+        return substr($value, 0, -1 * $pad);
+    }
+}