部分类库从Think命名空间移到Org

2026-07-04 14:22:48 +08:00 · 2013-04-14 19:28:21 +08:00
parent 095308ae51
commit 732a694846
87 changed files with 52 additions and 57 deletions
--- a/Library/Org/Crypt.php
+++ b/Library/Org/Crypt.php
@@ -0,0 +1,74 @@
+<?php
+// +----------------------------------------------------------------------
+// | TOPThink [ WE CAN DO IT JUST THINK ]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2011 http://topthink.com All rights reserved.
+// +----------------------------------------------------------------------
+// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
+// +----------------------------------------------------------------------
+// | Author: liu21st <liu21st@gmail.com>
+// +----------------------------------------------------------------------
+
+namespace Org;
+class Crypt {
+
+    /**
+     * 加密字符串
+     * @access static
+     * @param string $str 字符串
+     * @param string $key 加密key
+     * @return string
+     */
+    static public function encrypt($data,$key,$expire=0){
+        $key    =   md5($key);
+        $data   =   base64_encode($data);
+        $x=0;
+        $len = strlen($data);
+        $l = strlen($key);
+        $char =  '';
+        for ($i=0;$i< $len;$i++) {
+            if ($x== $l) $x=0;
+            $char   .=substr($key,$x,1);
+            $x++;
+        }
+        $str    =   sprintf('%010d', $expire ? $expire + time():0);
+        for ($i=0;$i< $len;$i++) {
+            $str    .=chr(ord(substr($data,$i,1))+(ord(substr($char,$i,1)))%256);
+        }
+        return str_replace('=', '',base64_encode($str));
+    }
+
+    /**
+     * 解密字符串
+     * @access static
+     * @param string $str 字符串
+     * @param string $key 加密key
+     * @return string
+     */
+    static public function decrypt($data,$key){
+        $key    =   md5($key);
+        $x=0;
+        $data   =   base64_decode($data);
+        $expire =   substr($data,0,10);
+        $data   =   substr($data,10);
+        if($expire>0 && $expire<time()) {
+            return '';
+        }
+        $len = strlen($data);
+        $l = strlen($key);    
+        $char =     $str = '';
+        for ($i=0;$i< $len;$i++) {
+            if ($x== $l) $x=0;
+            $char   .=substr($key,$x,1);
+            $x++;
+        }
+        for ($i=0;$i< $len;$i++) {
+            if (ord(substr($data,$i,1))<ord(substr($char,$i,1))) {
+                $str    .=chr((ord(substr($data,$i,1))+256)-ord(substr($char,$i,1)));
+            }else{
+                $str    .=chr(ord(substr($data,$i,1))-ord(substr($char,$i,1)));
+            }
+        }
+        return base64_decode($str);
+    }
+}