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COOKIE加密函数

内容导读

互联网集市收集整理的这篇技术教程文章主要介绍了COOKIE加密函数，小编现在分享给大家，供广大互联网技能从业者学习和参考。文章包含2402字，纯文字阅读大概需要4分钟。

内容图文

示例用法：
$eC = new encodeCookie;
$e = $eC->encodeC ( md5 ('password') ); $d = $eC->decodeC ( $e );
echo "Original Cookie value : ".$d; echo "

"; echo "Encoded Cookie value : ".$e;
  1. define ("DOMAIN", "54dev.com");
  2. define ("PATH", "/");
  3. define ("COOKIEID", "encodeCookie");
  4. define ("COOKIEKEY", "raz"); // max 5 chars is good
  6. /**
  7. * class encodeCookie
  8. *
  9. * encode cookies before you send them
  10. *
  11. */
  12. class encodeCookie {
  13. /**
  14. * encodeCookie::$config
  15. *
  16. * configuration
  17. *
  18. */
  19. var $config;
  21. /**
  22. * encodeCookie::encodeCookie()
  23. *
  24. * constructor
  25. *
  26. */
  27. function encodeCookie () {
  28. $this->config = array ();
  29. $this->config['cookie_key'] = COOKIEKEY;
  30. $this->config['cookie'] = array (
  31. 'cookie_id' => COOKIEID,
  32. 'cookie_path' => PATH,
  33. 'cookie_domain' => DOMAIN,
  34. );
  35. }
  37. /**
  38. * encodeCookie::set_Cookie()
  39. *
  40. * sets the cookie
  41. *
  42. * @param string $value
  43. * @param integer $sticky
  44. */
  45. function set_Cookie ($name, $value = "", $sticky = 0) {
  47. $exipres = "";
  49. if ($sticky == 1) {
  50. $expires = time() + 60*60*24*365;
  51. }
  53. $name = $this->config['cookie']['cookie_id'].$name;
  54. $newValue = $this->encodeC ($value);
  56. @setcookie($name, urlencode($newValue), $expires, $this->config['cookie']['cookie_path'], $this->config['cookie']['cookie_domain']);
  57. }
  59. /**
  60. * encodeCookie::get_Cookie()
  61. *
  62. * gets the cookie
  63. *
  64. */
  65. function get_Cookie ($name) {
  67. if ( isset( $_COOKIE[$this->config['cookie']['cookie_id'].$name] ) ) {
  68. $cookie = urldecode ( $_COOKIE[$this->config['cookie']['cookie_id'].$name] );
  69. return $this->decodeC ($cookie);
  70. } else {
  71. return FALSE;
  72. }
  74. }
  76. /**
  77. * encodeCookie::encodeC()
  78. *
  79. * encodes the cookie
  80. *
  81. */
  82. function encodeC ($cookie) {
  84. $newcookie = array ();
  85. $cookie = base64_encode ($cookie);
  87. for ( $i=0; $i<=strlen ($cookie); $i++ ) {
  88. $newcookie[ $i ] = ord ( $cookie[ $i ] ) * $this->encodeKey ();
  89. }
  91. $newcookie = implode ('.', $newcookie);
  93. return $newcookie;
  94. }
  96. /**
  97. * encodeCookie::decodeC()
  98. *
  99. * decodes the cookie
  100. *
  101. */
  102. function decodeC ($oldcookie) {
  104. $newcookie = array ();
  105. $cookie = explode ('.', $oldcookie);
  107. for ( $i=0; $i<=strlen ($oldcookie); $i++ ) {
  108. $newcookie[ $i ] = chr ( $cookie[ $i ] / $this->encodeKey () );
  109. }
  111. $newcookie = implode ('', $newcookie);
  112. $newcookie = base64_decode ($newcookie);
  114. return $newcookie;
  115. }
  117. /**
  118. * encodeCookie::encodeKey()
  119. *
  120. * encodes the key
  121. *
  122. */
  123. function encodeKey () {
  124. $newkey = 0;
  125. for ( $i=0; $i<=strlen ( $this->config['cookie_key'] ); $i++ ) {
  126. $newkey += ord ( $this->config['cookie_key'][ $i ] );
  127. }
  128. return $newkey;
  129. }
  131. }

内容总结

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