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Server : Apache System : Linux iZ2vcgyutqttsd1p850kl8Z 3.10.0-1160.92.1.el7.x86_64 #1 SMP Tue Jun 20 11:48:01 UTC 2023 x86_64 User : www ( 1000) PHP Version : 5.6.40 Disable Function : passthru,exec,system,putenv,chroot,chgrp,chown,shell_exec,popen,proc_open,pcntl_exec,ini_alter,ini_restore,dl,openlog,syslog,readlink,symlink,popepassthru,pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,imap_open,apache_setenv Directory : /www/wwwroot/saimikebio.com/mobile/include/ |
<?php
/**
* ECSHOP 验证码图片类
* ============================================================================
* * 版权所有 2005-2012 上海商派网络科技有限公司，并保留所有权利。
* 网站地址: http://www.ecshop.com；
* ----------------------------------------------------------------------------
* 这不是一个自由软件！您只能在不用于商业目的的前提下对程序代码进行修改和
* 使用；不允许对程序代码以任何形式任何目的的再发布。
* ============================================================================
* $Author: liubo $
* $Id: cls_captcha.php 17217 2011-01-19 06:29:08Z liubo $
*/
if (!defined('IN_ECTOUCH'))
{
die('Hacking attempt');
}
class captcha
{
/**
* 背景图片所在目录
*
* @var string $folder
*/
var $folder = 'data/captcha';
/**
* 图片的文件类型
*
* @var string $img_type
*/
var $img_type = 'png';
/*------------------------------------------------------ */
//-- 存在session中的名称
/*------------------------------------------------------ */
var $session_word = 'captcha_word';
/**
* 背景图片以及背景颜色
*
* 0 => 背景图片的文件名
* 1 => Red, 2 => Green, 3 => Blue
* @var array $themes
*/
var $themes_jpg = array(
1 => array('captcha_bg1.jpg', 255, 255, 255),
2 => array('captcha_bg2.jpg', 0, 0, 0),
3 => array('captcha_bg3.jpg', 0, 0, 0),
4 => array('captcha_bg4.jpg', 255, 255, 255),
5 => array('captcha_bg5.jpg', 255, 255, 255),
);
var $themes_gif = array(
1 => array('captcha_bg1.gif', 255, 255, 255),
2 => array('captcha_bg2.gif', 0, 0, 0),
3 => array('captcha_bg3.gif', 0, 0, 0),
4 => array('captcha_bg4.gif', 255, 255, 255),
5 => array('captcha_bg5.gif', 255, 255, 255),
);
/**
* 图片的宽度
*
* @var integer $width
*/
var $width = 130;
/**
* 图片的高度
*
* @var integer $height
*/
var $height = 20;
/**
* 构造函数
*
* @access public
* @param
*
* @return void
*/
function __construct($folder = '', $width = 145, $height = 20)
{
$this->captcha($folder, $width, $height);
}
/**
* 构造函数
*
* @access public
* @param string $folder 背景图片所在目录
* @param integer $width 图片宽度
* @param integer $height 图片高度
* @return bool
*/
function captcha($folder = '', $width = 145, $height = 20)
{
if (!empty($folder))
{
$this->folder = $folder;
}
$this->width = $width;
$this->height = $height;
/* 检查是否支持 GD */
if (PHP_VERSION >= '4.3')
{
return (function_exists('imagecreatetruecolor') || function_exists('imagecreate'));
}
else
{
return (((imagetypes() & IMG_GIF) > 0) || ((imagetypes() & IMG_JPG)) > 0 );
}
}
/**
* 检查给出的验证码是否和session中的一致
*
* @access public
* @param string $word 验证码
* @return bool
*/
function check_word($word)
{
$recorded = isset($_SESSION[$this->session_word]) ? base64_decode($_SESSION[$this->session_word]) : '';
$given = $this->encrypts_word(strtoupper($word));
return (preg_match("/$given/", $recorded));
}
/**
* 生成图片并输出到浏览器
*
* @access public
* @param string $word 验证码
* @return mix
*/
function generate_image($word = false)
{
if (!$word)
{
$word = $this->generate_word();
}
/* 记录验证码到session */
$this->record_word($word);
/* 验证码长度 */
$letters = strlen($word);
/* 选择一个随机的方案 */
mt_srand((double) microtime() * 1000000);
if (function_exists('imagecreatefromjpeg') && ((imagetypes() & IMG_JPG) > 0))
{
$theme = $this->themes_jpg[mt_rand(1, count($this->themes_jpg))];
}
else
{
$theme = $this->themes_gif[mt_rand(1, count($this->themes_gif))];
}
if (!file_exists($this->folder . $theme[0]))
{
return false;
}
else
{
$img_bg = (function_exists('imagecreatefromjpeg') && ((imagetypes() & IMG_JPG) > 0)) ?
imagecreatefromjpeg($this->folder . $theme[0]) : imagecreatefromgif($this->folder . $theme[0]);
$bg_width = imagesx($img_bg);
$bg_height = imagesy($img_bg);
$img_org = ((function_exists('imagecreatetruecolor')) && PHP_VERSION >= '4.3') ?
imagecreatetruecolor($this->width, $this->height) : imagecreate($this->width, $this->height);
/* 将背景图象复制原始图象并调整大小 */
if (function_exists('imagecopyresampled') && PHP_VERSION >= '4.3') // GD 2.x
{
imagecopyresampled($img_org, $img_bg, 0, 0, 0, 0, $this->width, $this->height, $bg_width, $bg_height);
}
else // GD 1.x
{
imagecopyresized($img_org, $img_bg, 0, 0, 0, 0, $this->width, $this->height, $bg_width, $bg_height);
}
imagedestroy($img_bg);
$clr = imagecolorallocate($img_org, $theme[1], $theme[2], $theme[3]);
/* 绘制边框 */
//imagerectangle($img_org, 0, 0, $this->width - 1, $this->height - 1, $clr);
/* 获得验证码的高度和宽度 */
$x = ($this->width - (imagefontwidth(5) * $letters)) / 2;
$y = ($this->height - imagefontheight(5)) / 2;
imagestring($img_org, 5, $x, $y, $word, $clr);
header('Expires: Thu, 01 Jan 1970 00:00:00 GMT');
// HTTP/1.1
header('Cache-Control: private, no-store, no-cache, must-revalidate');
header('Cache-Control: post-check=0, pre-check=0, max-age=0', false);
// HTTP/1.0
header('Pragma: no-cache');
if ($this->img_type == 'jpeg' && function_exists('imagecreatefromjpeg'))
{
header('Content-type: image/jpeg');
imageinterlace($img_org, 1);
imagejpeg($img_org, false, 95);
}
else
{
header('Content-type: image/png');
imagepng($img_org);
}
imagedestroy($img_org);
return true;
}
}
/*------------------------------------------------------ */
//-- PRIVATE METHODs
/*------------------------------------------------------ */
/**
* 对需要记录的串进行加密
*
* @access private
* @param string $word 原始字符串
* @return string
*/
function encrypts_word($word)
{
return substr(md5($word), 1, 10);
}
/**
* 将验证码保存到session
*
* @access private
* @param string $word 原始字符串
* @return void
*/
function record_word($word)
{
$_SESSION[$this->session_word] = base64_encode($this->encrypts_word($word));
}
/**
* 生成随机的验证码
*
* @access private
* @param integer $length 验证码长度
* @return string
*/
function generate_word($length = 4)
{
$chars = '23456789ABCDEFGHJKLMNPQRSTUVWXYZ';
for ($i = 0, $count = strlen($chars); $i < $count; $i++)
{
$arr[$i] = $chars[$i];
}
mt_srand((double) microtime() * 1000000);
shuffle($arr);
return substr(implode('', $arr), 5, $length);
}
}
?>