/gamecrawler/wp/youxisoso/verify.php

<?php   

/**

 Template Name:shengchengyz

 */

class YL_Security_Secoder {   

    //????session???  

    public static $seKey = 'verify_py';   //??????

    public static $expire = 3000;     // ????????s?    

    //??????????01IO???????  

    public static $codeSet = '3456789ABCDEFGHJKLMNPQRTUVWXY';   

    public static $fontSize = 26;     // ???????(px)   

    public static $useCurve = true;   // ???????   

    public static $useNoise = true;   // ??????    

    public static $imageH = 0;        // ??????   

    public static $imageL = 0;        // ??????   

    public static $length = 4;        // ?????   

    public static $bg = array(243, 251, 254);  // ??   

       

    protected static $_image = null;     // ???????   

    protected static $_color = null;     // ???????   

       

    /**  

     * ???????????????session?  

     */  

    public static function entry() {   

        // ???(px)   

        self::$imageL || self::$imageL = self::$length * self::$fontSize * 1.5 + self::$fontSize*1.5;    

        // ???(px)   

        self::$imageH || self::$imageH = self::$fontSize * 2;   

        // ???? self::$imageL x self::$imageH ???   

        self::$_image = imagecreate(self::$imageL, self::$imageH);    

        // ????         

        imagecolorallocate(self::$_image, self::$bg[0], self::$bg[1], self::$bg[2]);    

        // ?????????   

        self::$_color = imagecolorallocate(self::$_image, mt_rand(1,120), mt_rand(1,120), mt_rand(1,120));   

        // ?????????????????????   

        $ttf = dirname(__FILE__) . '/ttfs/t' . mt_rand(1, 10) . '.ttf';     

  

        if (self::$useNoise) {   

            // ???   

            self::_writeNoise();   

        }    

        if (self::$useCurve) {   

            // ????   

            self::_writeCurve();   

        }   

           

        // ????   

        $code = array(); // ???   

        $codeNX = 0; // ????N???????   

        if(empty($code) == true){

        	for ($i = 0; $i<self::$length; $i++) {   

	            $code[$i] = self::$codeSet[mt_rand(0, 28)];   

	            $codeNX += mt_rand(self::$fontSize*1.2, self::$fontSize*1.6);   

	            // ????????   

            imagettftext(self::$_image, self::$fontSize, mt_rand(-40, 70), $codeNX, self::$fontSize*1.5, self::$_color, $ttf, $code[$i]);   

        	}   

        }

        

           

        // ?????   

        isset($_SESSION) || session_start();   

        $_SESSION[self::$seKey]['code'] = join('', $code); // ???????session, ????????  

        $_SESSION[self::$seKey]['time'] = time();  // ???????   

                       

        header('Pragma: no-cache');

        header("content-type: image/JPEG; charset=utf-8");   

       

        // ????   

        imageJPEG(self::$_image);    

        imagedestroy(self::$_image);   

    }   

       

    /**   

     * ?????????????????????????(????????????)   

     *      ?????????y=Asin(?x+?)+b  

     *      ?????????????  

     *        A?????????????????  

     *        b??????Y???????????????????  

     *        ???????X??????????????????  

     *        ????????????T=2?/????  

     */  

    protected static function _writeCurve() {   

        $A = mt_rand(1, self::$imageH/2);                  // ??   

        $b = mt_rand(-self::$imageH/4, self::$imageH/4);   // Y??????   

        $f = mt_rand(-self::$imageH/4, self::$imageH/4);   // X??????   

        $T = mt_rand(self::$imageH*1.5, self::$imageL*2);  // ??   

        $w = (2* M_PI)/$T;   

                           

        $px1 = 0;  // ?????????   

        $px2 = mt_rand(self::$imageL/2, self::$imageL * 0.667);  // ?????????              

        for ($px=$px1; $px<=$px2; $px=$px+ 0.9) {   

            if ($w!=0) {   

                $py = $A * sin($w*$px + $f)+ $b + self::$imageH/2;  // y = Asin(?x+?) + b   

                $i = (int) ((self::$fontSize - 6)/4);   

                while ($i > 0) {    

                    imagesetpixel(self::$_image, $px + $i, $py + $i, self::$_color);  

					//???????imagettftext?imagestring??????                     

                    $i--;   

                }   

            }   

        }   

           

        $A = mt_rand(1, self::$imageH/2);                  // ??           

        $f = mt_rand(-self::$imageH/4, self::$imageH/4);   // X??????   

        $T = mt_rand(self::$imageH*1.5, self::$imageL*2);  // ??   

        $w = (2* M_PI)/$T;         

        $b = $py - $A * sin($w*$px + $f) - self::$imageH/2;   

        $px1 = $px2;   

        $px2 = self::$imageL;   

        for ($px=$px1; $px<=$px2; $px=$px+ 0.9) {   

            if ($w!=0) {   

                $py = $A * sin($w*$px + $f)+ $b + self::$imageH/2;  // y = Asin(?x+?) + b   

                $i = (int) ((self::$fontSize - 8)/4);   

                while ($i > 0) {            

                    imagesetpixel(self::$_image, $px + $i, $py + $i, self::$_color); 

					//??(while)???????imagettftext?imagestring?????????

					//????while?????????       

                    $i--;   

                }   

            }   

        }   

    }   

       

    /**  

     * ???  

     * ???????????????  

     */  

    protected static function _writeNoise() {   

        for($i = 0; $i < 10; $i++){   

            //????   

            $noiseColor = imagecolorallocate(   

                              self::$_image,    

                              mt_rand(150,225),    

                              mt_rand(150,225),    

                              mt_rand(150,225)   

                          );   

            for($j = 0; $j < 5; $j++) {   

                // ???   

                imagestring(   

                    self::$_image,   

                    5,    

                    mt_rand(-10, self::$imageL),    

                    mt_rand(-10, self::$imageH),    

                    self::$codeSet[mt_rand(0, 28)], // ?????????????   

                    $noiseColor  

                );   

            }   

        }   

    }   

}   

  



//??????????? ??????

YL_Security_Secoder::$useNoise = true;  //??????  

YL_Security_Secoder::$useCurve = true;   //????????

YL_Security_Secoder::entry(); 



?>