diff options
author | ctrlaltca <> | 2012-07-12 11:21:01 +0000 |
---|---|---|
committer | ctrlaltca <> | 2012-07-12 11:21:01 +0000 |
commit | 903ae8a581fac1e6917fc3e31d2ad8fb91df80c3 (patch) | |
tree | e08bf04f0823650a231227ac3499121270172a23 /framework/Web/UI/WebControls/assets | |
parent | 3e4e6e66aeb3f8fea4e1eb4237498ef9d2358f63 (diff) |
standardize the use of unix eol; use svn properties to enforce native eol
Diffstat (limited to 'framework/Web/UI/WebControls/assets')
-rw-r--r-- | framework/Web/UI/WebControls/assets/captcha.php | 448 |
1 files changed, 224 insertions, 224 deletions
diff --git a/framework/Web/UI/WebControls/assets/captcha.php b/framework/Web/UI/WebControls/assets/captcha.php index b26df895..08a857b5 100644 --- a/framework/Web/UI/WebControls/assets/captcha.php +++ b/framework/Web/UI/WebControls/assets/captcha.php @@ -1,224 +1,224 @@ -<?php
-/**
- * CAPTCHA generator script.
- *
- * @author Qiang Xue <qiang.xue@gmail.com>
- * @link http://www.pradosoft.com/
- * @copyright Copyright © 2005-2012 PradoSoft
- * @license http://www.pradosoft.com/license/
- * @version $Id$
- * @package System.Web.UI.WebControls.assets
- */
-
-define('THEME_OPAQUE_BACKGROUND',0x0001);
-define('THEME_NOISY_BACKGROUND',0x0002);
-define('THEME_HAS_GRID',0x0004);
-define('THEME_HAS_SCRIBBLE',0x0008);
-define('THEME_MORPH_BACKGROUND',0x0010);
-define('THEME_SHADOWED_TEXT',0x0020);
-
-require_once(dirname(__FILE__).'/captcha_key.php');
-
-$token='error';
-$theme=0;
-
-if(isset($_GET['options']))
-{
- $str=base64_decode($_GET['options']);
- if(strlen($str)>32)
- {
- $hash=substr($str,0,32);
- $str=substr($str,32);
- if(md5($privateKey.$str)===$hash)
- {
- $options=unserialize($str);
- $publicKey=$options['publicKey'];
- $tokenLength=$options['tokenLength'];
- $caseSensitive=$options['caseSensitive'];
- $alphabet=$options['alphabet'];
- $fontSize=$options['fontSize'];
- $theme=$options['theme'];
- if(($randomSeed=$options['randomSeed'])>0)
- srand($randomSeed);
- else
- srand((int)(microtime()*1000000));
- $token=generateToken($publicKey,$privateKey,$alphabet,$tokenLength,$caseSensitive);
- }
- }
-}
-
-displayToken($token,$fontSize,$theme);
-
-function generateToken($publicKey,$privateKey,$alphabet,$tokenLength,$caseSensitive)
-{
- $token=substr(hash2string(md5($publicKey.$privateKey),$alphabet).hash2string(md5($privateKey.$publicKey),$alphabet),0,$tokenLength);
- return $caseSensitive?$token:strtoupper($token);
-}
-
-function hash2string($hex,$alphabet)
-{
- if(strlen($alphabet)<2)
- $alphabet='234578adefhijmnrtABDEFGHJLMNRT';
- $hexLength=strlen($hex);
- $base=strlen($alphabet);
- $result='';
- for($i=0;$i<$hexLength;$i+=6)
- {
- $number=hexdec(substr($hex,$i,6));
- while($number)
- {
- $result.=$alphabet[$number%$base];
- $number=floor($number/$base);
- }
- }
- return $result;
-}
-
-function displayToken($token,$fontSize,$theme)
-{
- if(($fontSize=(int)$fontSize)<22)
- $fontSize=22;
- if($fontSize>100)
- $fontSize=100;
- $length=strlen($token);
- $padding=10;
- $fontWidth=$fontSize;
- $fontHeight=floor($fontWidth*1.5);
- $width=$fontWidth*$length+$padding*2;
- $height=$fontHeight;
- $image=imagecreatetruecolor($width,$height);
-
- addBackground
- (
- $image, $width, $height,
- $theme&THEME_OPAQUE_BACKGROUND,
- $theme&THEME_NOISY_BACKGROUND,
- $theme&THEME_HAS_GRID,
- $theme&THEME_HAS_SCRIBBLE,
- $theme&THEME_MORPH_BACKGROUND
- );
-
- $font=dirname(__FILE__).DIRECTORY_SEPARATOR.'verase.ttf';
-
- if(function_exists('imagefilter'))
- imagefilter($image,IMG_FILTER_GAUSSIAN_BLUR);
-
- $hasShadow=($theme&THEME_SHADOWED_TEXT);
- for($i=0;$i<$length;$i++)
- {
- $color=imagecolorallocate($image,rand(150,220),rand(150,220),rand(150,220));
- $size=rand($fontWidth-10,$fontWidth);
- $angle=rand(-30,30);
- $x=$padding+$i*$fontWidth;
- $y=rand($fontHeight-15,$fontHeight-10);
- imagettftext($image,$size,$angle,$x,$y,$color,$font,$token[$i]);
- if($hasShadow)
- imagettftext($image,$size,$angle,$x+2,$y+2,$color,$font,$token[$i]);
- imagecolordeallocate($image,$color);
- }
-
- header('Content-Type: image/png');
- imagepng($image);
- imagedestroy($image);
-}
-
-function addBackground($image,$width,$height,$opaque,$noisy,$hasGrid,$hasScribble,$morph)
-{
- $background=imagecreatetruecolor($width*2,$height*2);
- $white=imagecolorallocate($background,255,255,255);
- imagefill($background,0,0,$white);
-
- if($opaque)
- imagefill($background,0,0,imagecolorallocate($background,100,100,100));
-
- if($noisy)
- addNoise($background,$width*2,$height*2);
-
- if($hasGrid)
- addGrid($background,$width*2,$height*2);
-
- if($hasScribble)
- addScribble($background,$width*2,$height*2);
-
- if($morph)
- morphImage($background,$width*2,$height*2);
-
- imagecopy($image,$background,0,0,30,30,$width,$height);
-
- if(!$opaque)
- imagecolortransparent($image,$white);
-}
-
-function addNoise($image,$width,$height)
-{
- for($x=0;$x<$width;++$x)
- {
- for($y=0;$y<$height;++$y)
- {
- if(rand(0,100)<25)
- {
- $color=imagecolorallocate($image,rand(150,220),rand(150,220),rand(150,220));
- imagesetpixel($image,$x,$y,$color);
- imagecolordeallocate($image,$color);
- }
- }
- }
-}
-
-function addGrid($image,$width,$height)
-{
- for($i=0;$i<$width;$i+=rand(15,25))
- {
- imagesetthickness($image,rand(2,6));
- $color=imagecolorallocate($image,rand(100,180),rand(100,180),rand(100,180));
- imageline($image,$i+rand(-10,20),0,$i+rand(-10,20),$height,$color);
- imagecolordeallocate($image,$color);
- }
- for($i=0;$i<$height;$i+=rand(15,25))
- {
- imagesetthickness($image,rand(2,6));
- $color=imagecolorallocate($image,rand(100,180),rand(100,180),rand(100,180));
- imageline($image,0,$i+rand(-10,20),$width,$i+rand(-10,20),$color);
- imagecolordeallocate($image,$color);
- }
-}
-
-function addScribble($image,$width,$height)
-{
- for($i=0;$i<8;$i++)
- {
- $color=imagecolorallocate($image,rand(100,180),rand(100,180),rand(100,180));
- $points=array();
- for($j=1;$j<rand(5,10);$j++)
- {
- $points[]=rand(2*(20*($i+1)),2*(50*($i+1)));
- $points[]=rand(30,$height+30);
- }
- imagesetthickness($image,rand(2,6));
- imagepolygon($image,$points,intval(sizeof($points)/2),$color);
- imagecolordeallocate($image,$color);
- }
-}
-
-function morphImage($image,$width,$height)
-{
- $tempImage=imagecreatetruecolor($width,$height);
- $chunk=rand(1,5);
- for($x=$y=0;$x<$width;$x+=$chunk)
- {
- $chunk=rand(1,5);
- $y+=rand(-1,1);
- if($y>=$height) $y=$height-5;
- if($y<0) $y=5;
- imagecopy($tempImage,$image,$x,0,$x,$y,$chunk,$height);
- }
- for($x=$y=0;$y<$height;$y+=$chunk)
- {
- $chunk=rand(1,5);
- $x+=rand(-1,1);
- if($x>=$width) $x=$width-5;
- if($x<0) $x=5;
- imagecopy($image,$tempImage,$x,$y,0,$y,$width,$chunk);
- }
-}
-
+<?php +/** + * CAPTCHA generator script. + * + * @author Qiang Xue <qiang.xue@gmail.com> + * @link http://www.pradosoft.com/ + * @copyright Copyright © 2005-2012 PradoSoft + * @license http://www.pradosoft.com/license/ + * @version $Id$ + * @package System.Web.UI.WebControls.assets + */ + +define('THEME_OPAQUE_BACKGROUND',0x0001); +define('THEME_NOISY_BACKGROUND',0x0002); +define('THEME_HAS_GRID',0x0004); +define('THEME_HAS_SCRIBBLE',0x0008); +define('THEME_MORPH_BACKGROUND',0x0010); +define('THEME_SHADOWED_TEXT',0x0020); + +require_once(dirname(__FILE__).'/captcha_key.php'); + +$token='error'; +$theme=0; + +if(isset($_GET['options'])) +{ + $str=base64_decode($_GET['options']); + if(strlen($str)>32) + { + $hash=substr($str,0,32); + $str=substr($str,32); + if(md5($privateKey.$str)===$hash) + { + $options=unserialize($str); + $publicKey=$options['publicKey']; + $tokenLength=$options['tokenLength']; + $caseSensitive=$options['caseSensitive']; + $alphabet=$options['alphabet']; + $fontSize=$options['fontSize']; + $theme=$options['theme']; + if(($randomSeed=$options['randomSeed'])>0) + srand($randomSeed); + else + srand((int)(microtime()*1000000)); + $token=generateToken($publicKey,$privateKey,$alphabet,$tokenLength,$caseSensitive); + } + } +} + +displayToken($token,$fontSize,$theme); + +function generateToken($publicKey,$privateKey,$alphabet,$tokenLength,$caseSensitive) +{ + $token=substr(hash2string(md5($publicKey.$privateKey),$alphabet).hash2string(md5($privateKey.$publicKey),$alphabet),0,$tokenLength); + return $caseSensitive?$token:strtoupper($token); +} + +function hash2string($hex,$alphabet) +{ + if(strlen($alphabet)<2) + $alphabet='234578adefhijmnrtABDEFGHJLMNRT'; + $hexLength=strlen($hex); + $base=strlen($alphabet); + $result=''; + for($i=0;$i<$hexLength;$i+=6) + { + $number=hexdec(substr($hex,$i,6)); + while($number) + { + $result.=$alphabet[$number%$base]; + $number=floor($number/$base); + } + } + return $result; +} + +function displayToken($token,$fontSize,$theme) +{ + if(($fontSize=(int)$fontSize)<22) + $fontSize=22; + if($fontSize>100) + $fontSize=100; + $length=strlen($token); + $padding=10; + $fontWidth=$fontSize; + $fontHeight=floor($fontWidth*1.5); + $width=$fontWidth*$length+$padding*2; + $height=$fontHeight; + $image=imagecreatetruecolor($width,$height); + + addBackground + ( + $image, $width, $height, + $theme&THEME_OPAQUE_BACKGROUND, + $theme&THEME_NOISY_BACKGROUND, + $theme&THEME_HAS_GRID, + $theme&THEME_HAS_SCRIBBLE, + $theme&THEME_MORPH_BACKGROUND + ); + + $font=dirname(__FILE__).DIRECTORY_SEPARATOR.'verase.ttf'; + + if(function_exists('imagefilter')) + imagefilter($image,IMG_FILTER_GAUSSIAN_BLUR); + + $hasShadow=($theme&THEME_SHADOWED_TEXT); + for($i=0;$i<$length;$i++) + { + $color=imagecolorallocate($image,rand(150,220),rand(150,220),rand(150,220)); + $size=rand($fontWidth-10,$fontWidth); + $angle=rand(-30,30); + $x=$padding+$i*$fontWidth; + $y=rand($fontHeight-15,$fontHeight-10); + imagettftext($image,$size,$angle,$x,$y,$color,$font,$token[$i]); + if($hasShadow) + imagettftext($image,$size,$angle,$x+2,$y+2,$color,$font,$token[$i]); + imagecolordeallocate($image,$color); + } + + header('Content-Type: image/png'); + imagepng($image); + imagedestroy($image); +} + +function addBackground($image,$width,$height,$opaque,$noisy,$hasGrid,$hasScribble,$morph) +{ + $background=imagecreatetruecolor($width*2,$height*2); + $white=imagecolorallocate($background,255,255,255); + imagefill($background,0,0,$white); + + if($opaque) + imagefill($background,0,0,imagecolorallocate($background,100,100,100)); + + if($noisy) + addNoise($background,$width*2,$height*2); + + if($hasGrid) + addGrid($background,$width*2,$height*2); + + if($hasScribble) + addScribble($background,$width*2,$height*2); + + if($morph) + morphImage($background,$width*2,$height*2); + + imagecopy($image,$background,0,0,30,30,$width,$height); + + if(!$opaque) + imagecolortransparent($image,$white); +} + +function addNoise($image,$width,$height) +{ + for($x=0;$x<$width;++$x) + { + for($y=0;$y<$height;++$y) + { + if(rand(0,100)<25) + { + $color=imagecolorallocate($image,rand(150,220),rand(150,220),rand(150,220)); + imagesetpixel($image,$x,$y,$color); + imagecolordeallocate($image,$color); + } + } + } +} + +function addGrid($image,$width,$height) +{ + for($i=0;$i<$width;$i+=rand(15,25)) + { + imagesetthickness($image,rand(2,6)); + $color=imagecolorallocate($image,rand(100,180),rand(100,180),rand(100,180)); + imageline($image,$i+rand(-10,20),0,$i+rand(-10,20),$height,$color); + imagecolordeallocate($image,$color); + } + for($i=0;$i<$height;$i+=rand(15,25)) + { + imagesetthickness($image,rand(2,6)); + $color=imagecolorallocate($image,rand(100,180),rand(100,180),rand(100,180)); + imageline($image,0,$i+rand(-10,20),$width,$i+rand(-10,20),$color); + imagecolordeallocate($image,$color); + } +} + +function addScribble($image,$width,$height) +{ + for($i=0;$i<8;$i++) + { + $color=imagecolorallocate($image,rand(100,180),rand(100,180),rand(100,180)); + $points=array(); + for($j=1;$j<rand(5,10);$j++) + { + $points[]=rand(2*(20*($i+1)),2*(50*($i+1))); + $points[]=rand(30,$height+30); + } + imagesetthickness($image,rand(2,6)); + imagepolygon($image,$points,intval(sizeof($points)/2),$color); + imagecolordeallocate($image,$color); + } +} + +function morphImage($image,$width,$height) +{ + $tempImage=imagecreatetruecolor($width,$height); + $chunk=rand(1,5); + for($x=$y=0;$x<$width;$x+=$chunk) + { + $chunk=rand(1,5); + $y+=rand(-1,1); + if($y>=$height) $y=$height-5; + if($y<0) $y=5; + imagecopy($tempImage,$image,$x,0,$x,$y,$chunk,$height); + } + for($x=$y=0;$y<$height;$y+=$chunk) + { + $chunk=rand(1,5); + $x+=rand(-1,1); + if($x>=$width) $x=$width-5; + if($x<0) $x=5; + imagecopy($image,$tempImage,$x,$y,0,$y,$width,$chunk); + } +} + |