www.gusucode.com > wxApp PHP版微信小程序CMS系统 v1.0PHP源码程序 > wxApp PHP版微信小程序CMS系统 v1.0/wxAppCMS_v1.0.0/wxAppCMS_v1.0.0/iPHP/core/iSeccode.class.php
<?php
/**
* iPHP - i PHP Framework
* Copyright (c) iiiPHP.com. All rights reserved.
*
* @author iPHPDev <master@iiiphp.com>
* @website http://www.iiiphp.com
* @license http://www.iiiphp.com/license
* @version 2.1.0
*/
class iSeccode {
public static $config = array(
'num' => 4,//字符数
'size' => 24,//字体大小
'width' => 90,//图片宽度
'height' => 30,//图片高度
'line' => 3, //干扰线数量
'pixel' => 90, //干扰点数量
'shadow' => 0 //阴影
);
public static $setcookie = array();
protected static $im = null;
protected static $code = null;
protected static $color = null;
//检查验证码
public static function check($seccode, $destroy = false, $cookie_name = 'captcha') {
$_seccode = self::cookie($cookie_name);
$_seccode && $cookie_seccode = auth_decode($_seccode);
$destroy && self::cookie($cookie_name, '', -31536000);
if (empty($cookie_seccode) || strtolower($cookie_seccode) != strtolower($seccode)) {
return false;
} else {
return true;
}
}
public static function run($pre=null){
ob_end_clean();
@header("Expires: -1");
@header("Cache-Control: no-store, private, post-check=0, pre-check=0, max-age=0", FALSE);
@header("Pragma: no-cache");
$name = 'captcha';
$pre && $name = $pre.'_captcha';
self::$code OR self::$code = self::mkcode();
self::cookie($name, auth_encode(self::$code));
if(function_exists('imagecreate') &&
function_exists('imagecolorset') &&
function_exists('imagecopyresized') &&
function_exists('imagecreatetruecolor') &&
function_exists('imagecolorallocate') &&
function_exists('imagearc') &&
function_exists('imageline') &&
function_exists('imagesetpixel') &&
(function_exists('imagettftext') || function_exists('imagechar')) &&
(function_exists('imagegif') || function_exists('imagepng') || function_exists('imagejpeg')))
{
self::image();
}else{
self::bmp();
}
}
private static function cookie($key,$value=null,$expires=0){
if($value===null){
return iPHP::get_cookie($key);
}else{
return iPHP::set_cookie($key, $value,$expires);
}
}
private static function image(){
self::background();
self::adulterate();
function_exists('imagettftext')?self::ttf_font():self::gif_font();
if(function_exists('imagejpeg')) {
header('Content-type:image/jpeg');
$void = imagejpeg(self::$im);
} else if(function_exists('imagepng')) {
header('Content-type:image/png');
$void = imagepng(self::$im);
} else if(function_exists('imagegif')) {
header('Content-type:image/gif');
$void = imagegif(self::$im);
} else {
return false;
}
imagedestroy(self::$im);
return $void;
}
//生成随机
private static function mkcode() {
$charset = '123456789ABCDEFGHIJKMNPQRSTUVWXYZ';
$_len = strlen($charset)-1;
for ($i=0;$i<self::$config['num'];$i++) {
$code.= $charset[rand(0,$_len)];
}
return $code;
}
//背景
private static function background() {
//创建图片，并设置背景色
self::$im = imagecreatetruecolor(self::$config['width'], self::$config['height']);
for($i = 0;$i < 3;$i++) {
$start[$i] = rand(200, 255);
$end[$i] = rand(100, 200);
$step[$i] = ($end[$i] - $start[$i]) / self::$config['width'];
self::$color[$i] = $start[$i];
}
for($i = 0;$i < self::$config['width'];$i++) {
$color = imagecolorallocate(self::$im, self::$color[0], self::$color[1], self::$color[2]);
imageline(self::$im, $i, 0, $i, self::$config['height'], $color);
self::$color[0] += $step[0];
self::$color[1] += $step[1];
self::$color[2] += $step[2];
}
self::$color[0] -= 15;
self::$color[1] -= 15;
self::$color[2] -= 15;
}
private static function adulterate() {
for($i=0; $i<self::$config['line']; $i++) {
$color = imagecolorallocate(self::$im, self::$color[0], self::$color[1], self::$color[2]);
$x = rand(0, self::$config['width']);
$y = 0;
$x2 = rand(0,self::$config['width']);
$y2 = self::$config['height'];
if($i%2) {
imagearc(self::$im, $x, $y, $x2,$y2,rand(0, 360), rand(0, 360), $color);
imagearc(self::$im, $x+1, $y,$x2+1,$y2,rand(0, 360), rand(0, 360), $color);
} else {
imageline(self::$im, $x, $y,$x2,$y2, $color);
imageline(self::$im, $x+1, $y,$x2+1,$y2, $color);
}
}
for ($i=0; $i < self::$config['pixel']; $i++) {
$color = imagecolorallocate(self::$im, self::$color[0], self::$color[1], self::$color[2]);
$x = rand(0,self::$config['width']);
$y = rand(0,self::$config['height']);
imagesetpixel(self::$im,$x,$y,$color);
//imagefilledrectangle(self::$im,$x,$y, $x-1, $y-1, $color);
}
}
private static function ttf_font() {
$font_file = iPHP_CORE.'/seccode.otf';
$font = array();
$font_size = self::$config['size'];
// $ttfb_box = imagettfbbox($font_size,$angle,$font_file,self::$code[0]);
$ttfb_box = imagettfbbox($font_size,0,$font_file,self::$code[0]);
$font_w = abs($ttfb_box[4] - $ttfb_box[0]);
$font_h = abs($ttfb_box[5] - $ttfb_box[1]);
for ($i=0; $i < self::$config['num']; $i++) {
$x = floor(self::$config['width']/self::$config['num'])*$i+3;
$y = $font_h+5;
$text_color = imagecolorallocate(self::$im, self::$color[0], self::$color[1], self::$color[2]);
$angle = rand(-10, 20);
if(self::$config['shadow']) {
$text_shadowcolor = imagecolorallocate(self::$im, 255 - self::$color[0], 255 - self::$color[1], 255 - self::$color[2]);
imagettftext(self::$im, $font_size, $angle, $x+1, $y+1, $text_shadowcolor, $font_file, self::$code[$i]);
}
imagettftext(self::$im, $font_size, $angle, $x, $y, $text_color, $font_file, self::$code[$i]);
// imagechar(self::$im,5,$x,$y,self::$code[$i],$text_color);
}
}
private static function gif_font() {
$gif_dir = array();
if(function_exists('imagecreatefromgif')) {
$gif_root = dirname(strtr(__FILE__,'\\','/')).'/seccode/';
$dirs = opendir($gif_root);
while($dir = readdir($dirs)) {
if($dir != '.' && $dir != '..' && file_exists($gif_root.$dir.'/9.gif')) {
$gif_dir[] = $dir;
}
}
}
$width_total = 0;
for($i = 0; $i < self::$config['num']; $i++) {
$gif_path = $gif_dir ? $gif_root.$gif_dir[array_rand($gif_dir)].'/'.strtolower(self::$code[$i]).'.gif' : '';
if($gif_path && file_exists($gif_path)) {
$font[$i]['file'] = $gif_path;
$font[$i]['data'] = getimagesize($gif_path);
$font[$i]['width'] = $font[$i]['data'][0] + rand(0, 6) - 4;
$font[$i]['height'] = $font[$i]['data'][1] + rand(0, 6) - 4;
$font[$i]['width'] += rand(0, self::$config['width'] / 5 - $font[$i]['width']);
$width_total += $font[$i]['width'];
} else {
$font[$i]['file'] = '';
$font[$i]['width'] = 8 + rand(0, self::$config['width'] / 5 - 5);
$width_total += $font[$i]['width'];
}
}
$x = rand(1, self::$config['width'] - $width_total);
for($i = 0; $i < self::$config['num']; $i++) {
if($font[$i]['file']) {
$imcode = imagecreatefromgif($font[$i]['file']);
$y = rand(0, self::$config['height'] - $font[$i]['height']);
if(self::$config['shadow']) {
$imcodeshadow = $imcode;
imagecolorset($imcodeshadow, 0 , 255 - self::$color[0], 255 - self::$color[1], 255 - self::$color[2]);
imagecopyresized(self::$im, $imcodeshadow, $x + 1, $y + 1, 0, 0, $font[$i]['width'], $font[$i]['height'], $font[$i]['data'][0], $font[$i]['data'][1]);
}
imagecolorset($imcode, 0 , self::$color[0], self::$color[1], self::$color[2]);
imagecopyresized(self::$im, $imcode, $x, $y, 0, 0, $font[$i]['width'], $font[$i]['height'], $font[$i]['data'][0], $font[$i]['data'][1]);
} else {
$y = rand(0, self::$config['height'] - 20);
if(self::$config['shadow']) {
$text_shadowcolor = imagecolorallocate(self::$im, 255 - self::$color[0], 255 - self::$color[1], 255 - self::$color[2]);
imagechar(self::$im, 5, $x + 1, $y + 1, self::$code[$i], $text_shadowcolor);
}
$text_color = imagecolorallocate(self::$im, self::$color[0], self::$color[1], self::$color[2]);
imagechar(self::$im, 5, $x, $y, self::$code[$i], $text_color);
}
$x += $font[$i]['width'];
}
}
/**
* BMP生成代码 来自网络 出处未知
**/
private static function bmp(){
$numbers = array(
'B' => array('00','fc','66','66','66','7c','66','66','fc','00'),
'C' => array('00','38','64','c0','c0','c0','c4','64','3c','00'),
'E' => array('00','fe','62','62','68','78','6a','62','fe','00'),
'F' => array('00','f8','60','60','68','78','6a','62','fe','00'),
'G' => array('00','78','cc','cc','de','c0','c4','c4','7c','00'),
'H' => array('00','e7','66','66','66','7e','66','66','e7','00'),
'J' => array('00','f8','cc','cc','cc','0c','0c','0c','7f','00'),
'K' => array('00','f3','66','66','7c','78','6c','66','f7','00'),
'M' => array('00','f7','63','6b','6b','77','77','77','e3','00'),
'P' => array('00','f8','60','60','7c','66','66','66','fc','00'),
'Q' => array('00','78','cc','cc','cc','cc','cc','cc','78','00'),
'R' => array('00','f3','66','6c','7c','66','66','66','fc','00'),
'T' => array('00','78','30','30','30','30','b4','b4','fc','00'),
'V' => array('00','1c','1c','36','36','36','63','63','f7','00'),
'W' => array('00','36','36','36','77','7f','6b','63','f7','00'),
'X' => array('00','f7','66','3c','18','18','3c','66','ef','00'),
'Y' => array('00','7e','18','18','18','3c','24','66','ef','00'),
'2' => array('fc','c0','60','30','18','0c','cc','cc','78','00'),
'3' => array('78','8c','0c','0c','38','0c','0c','8c','78','00'),
'4' => array('00','3e','0c','fe','4c','6c','2c','3c','1c','1c'),
'6' => array('78','cc','cc','cc','ec','d8','c0','60','3c','00'),
'7' => array('30','30','38','18','18','18','1c','8c','fc','00'),
'8' => array('78','cc','cc','cc','78','cc','cc','cc','78','00'),
'9' => array('f0','18','0c','6c','dc','cc','cc','cc','78','00')
);
foreach($numbers as $i => $number) {
for($j = 0; $j < 6; $j++) {
$a1 = substr('012', rand(0, 2), 1).substr('012345', rand(0, 5), 1);
$a2 = substr('012345', rand(0, 5), 1).substr('0123', rand(0, 3), 1);
rand(0, 1) == 1 ? array_push($numbers[$i], $a1) : array_unshift($numbers[$i], $a1);
rand(0, 1) == 0 ? array_push($numbers[$i], $a1) : array_unshift($numbers[$i], $a2);
}
}
$bitmap = array();
for($i = 0; $i < 20; $i++) {
for($j = 0; $j < self::$config['num']; $j++) {
$n = substr(self::$code, $j, 1);
$bytes = $numbers[$n][$i];
$a = rand(0, 14);
array_push($bitmap, $bytes);
}
}
for($i = 0; $i < 8; $i++) {
$a = substr('012345', rand(0, 2), 1) . substr('012345', rand(0, 5), 1);
array_unshift($bitmap, $a);
array_push($bitmap, $a);
}
$image = pack('H*', '424d9e000000000000003e000000280000002000000018000000010001000000'.
'0000600000000000000000000000000000000000000000000000FFFFFF00'.implode('', $bitmap));
header('Content-Type: image/bmp');
echo $image;
}
}