function captcha($sourceFolder, $moduleFolder, $uploadFolder, $urlRequestRoot, $cmsFolder, $length = 5)
{
$this->sourceFolder = $sourceFolder;
$this->moduleFolder = $moduleFolder;
$this->uploadFolder = $uploadFolder;
$this->urlRequestRoot = $urlRequestRoot;
$this->cmsFolder = $cmsFolder;
// header('Content-type: image/png');
$this->Length = $length;
//$this->fontpath = dirname($_SERVER['SCRIPT_FILENAME']) . '/fonts/';
global $sourceFolder, $moduleFolder;
$this->fontpath = "{$sourceFolder}/{$moduleFolder}/form/captcha/fonts/";
$this->fonts = $this->getFonts();
$errormgr = new error();
if ($this->fonts == FALSE) {
//$errormgr = new error;
$errormgr->addError('No fonts available!');
$errormgr->displayError();
// die();
}
if (function_exists('imagettftext') == FALSE) {
$errormgr->addError('');
$errormgr->displayError();
// die();
}
$this->stringGen();
$this->makeCaptcha();
}
function captcha($length = 6)
{
header('Content-type: image/png');
$this->Length = $length;
$this->fontpath = 'images/';
$this->fonts = $this->getFonts();
$errormgr = new error();
if ($this->fonts == FALSE) {
//$errormgr = new error;
$errormgr->addError('No fonts available!');
$errormgr->displayError();
die;
}
if (function_exists('imagettftext') == FALSE) {
$errormgr->addError('');
$errormgr->displayError();
die;
}
$this->stringGen();
$this->makeCaptcha();
}
function captcha()
{
$this->fontpath = JPATH_COMPONENT . DS . 'fonts' . DS;
$this->fonts = $this->getFonts();
$errormgr = new error();
if ($this->imagetype == 'FREETYPE') {
if ($this->fonts == FALSE) {
$errormgr->addError('No fonts available!');
$errormgr->displayError();
die;
}
if (function_exists('imagettftext') == FALSE) {
$errormgr->addError('the function imagettftext does not exist.');
$errormgr->displayError();
die;
}
}
header('Content-type: image/png');
ob_clean();
$this->stringGenerate();
$this->makeCaptcha();
//exit;
}
function captcha($length = 6)
{
global $settings;
header('Content-type: image/png');
$this->Length = $length;
//$this->fontpath = dirname($_SERVER['SCRIPT_FILENAME']) . '/fonts/';
$this->fontpath = "theme/{$settings['theme']}/font/";
$this->fonts = $this->getFonts();
$errormgr = new error();
if ($this->fonts == FALSE) {
//$errormgr = new error;
$errormgr->addError('No fonts available!');
$errormgr->displayError();
die;
}
if (function_exists('imagettftext') == FALSE) {
$errormgr->addError('');
$errormgr->displayError();
die;
}
$this->stringGen();
$this->makeCaptcha();
}
function makeCaptcha()
{
global $cString, $_CONF, $_TABLES, $LANG_CP00;
if ($this->session_id != 0) {
$sql = "UPDATE {$_TABLES['cp_sessions']} SET validation='" . $this->getCaptchaString() . "' WHERE session_id='" . DB_escapeString($this->session_id) . "'";
DB_query($sql);
} else {
CAPTCHA_errorLog("CAPTCHA: No valid session id passed");
exit;
}
switch ($this->driver) {
case 0:
case 1:
if ($this->gfxformat != 'png' && $this->gfxformat != 'jpg') {
header('Content-type: image/gif');
COM_errorLog("CAPTCHA: No valid gfxFormat specified");
$errormgr = new error();
$errormgr->addError('');
$errormgr->displayError();
die;
}
$header = 'Content-type: image/' . $this->gfxformat;
header($header);
if ($this->driver == 0) {
$imagelength = $this->Length * 25 + 16;
$imageheight = 75;
$image = imagecreate($imagelength, $imageheight);
$bgcolor = imagecolorallocate($image, 255, 255, 255);
$stringcolor = imagecolorallocate($image, 0, 0, 0);
$filter = new filters();
$filter->signs($image, $this->getRandFont());
for ($i = 0; $i < strlen($this->CaptchaString); $i++) {
imagettftext($image, 25, mt_rand(-15, 15), $i * 25 + 10, mt_rand(30, 70), $stringcolor, $this->getRandFont(), $this->CaptchaString[$i]);
}
switch ($this->gfxformat) {
case 'png':
imagepng($image);
break;
case 'jpg':
imagejpeg($image);
break;
}
imagedestroy($image);
} else {
// ImageMagick code originally written by
// Thom Skrtich (email : bisohpthom@supertwist.net)
// used in SecureImage a CAPTCHA plugin for WordPress.
$gravity = 'Center';
# modify the image according to the generated settings
$size = rand($this->sizemin, $this->sizemax);
$blur = rand($this->blurmin, $this->blurmax);
$angle = rand($this->anglemin, $this->anglemax);
$swirl = rand($this->swirlmin, $this->swirlmax);
$wave = rand($this->wavemin, $this->wavemax);
$cString = $this->CaptchaString;
$i = strlen($cString);
$newString = '';
for ($x = 0; $x < $i; $x++) {
$newString .= $cString[$x];
$newString .= ' ';
}
# prepare our image magick command
$cmd = '"' . $this->convertpath . '"';
$cmd .= ' -font "' . $this->getRandFont() . '"';
$cmd .= ' -pointsize ' . $size;
$cmd .= ' -gravity "' . $gravity . '"';
$cmd .= ' -annotate 0 "' . $newString . '"';
$cmd .= ' -blur ' . $blur;
$cmd .= ' -rotate ' . $angle;
$cmd .= ' -swirl ' . $swirl;
$cmd .= ' -wave ' . $wave . 'x80';
$cmd .= ' ' . $this->getRandBackground() . ' - ';
if (PHP_OS == "WINNT") {
$pcmd = 'cmd /c " ' . $cmd . '"';
} else {
$pcmd = $cmd;
}
if ($this->debug) {
COM_errorLog("CAPTCHA cmd: " . $pcmd);
}
passthru($pcmd);
}
break;
case 2:
header('Content-type: image/jpeg');
$filename = $cString[$this->CaptchaString] . '.jpg';
$fp = fopen($_CONF['path'] . 'plugins/captcha/images/static/' . $this->imageset . '/' . $filename, 'rb');
if ($fp != NULL) {
while (!feof($fp)) {
$buf = fgets($fp, 8192);
echo $buf;
}
fclose($fp);
} else {
COM_errorLog("CAPTCHA: Unable to open static image file");
}
break;
case 3:
case 4:
case 5:
break;
case 6:
/*
$output = $this->first . ' '.$this->operator . ' ' . $this->second . ' = ';
$imagelength = $this->Length * 25 + 16;
$imageheight = 75;
$im = imagecreate($imagelength, $imageheight);
// White background and blue text
$bg = imagecolorallocate($im, 255, 255, 255);
$textcolor = imagecolorallocate($im, 0, 0, 255);
// Write the string at the top left
imagestring($im, 5, 35, 15, $output, $textcolor);
imagestring($im, 25, 5, 45, $LANG_CP00['captcha_help'], $textcolor);
// Output the image
header('Content-type: image/png');
imagepng($im);
imagedestroy($im);
*/
$output = $this->first . '' . $this->operator . '' . $this->second . '=';
$font = $this->fontpath . 'bluehigl.ttf';
$imagelength = $this->Length * 25 + 16;
$imageheight = 75;
$image = imagecreate($imagelength, $imageheight);
$bgcolor = imagecolorallocate($image, 255, 255, 255);
$stringcolor = imagecolorallocate($image, 0, 0, 0);
for ($i = 0; $i < strlen($output); $i++) {
imagettftext($image, 25, mt_rand(-15, 15), $i * 25 + 10, 45, $stringcolor, $font, $output[$i]);
}
switch ($this->gfxformat) {
case 'png':
imagepng($image);
break;
case 'jpg':
imagejpeg($image);
break;
}
imagedestroy($image);
break;
default:
break;
}
}
function captcha($length = 4)
{
global $mainframe;
if (!function_exists('imagecreate')) {
header('Location:uploads/nogd.gif');
}
//die('GD Library not found!');
header('Content-type: image/png');
//$mainframe->registerEvent( 'onAfterInitialise', 'pngHeader' );
$this->Length = $length;
//$this->fontpath = dirname($_SERVER['SCRIPT_FILENAME']) . '/fonts/';
$this->fontpath = JPATH_SITE . DS . 'components' . DS . 'com_forme' . DS . 'fonts' . DS;
//echo $this->fontpath;die();
$this->fonts = $this->getFonts();
$errormgr = new error();
if ($this->fonts == FALSE) {
//$errormgr = new error;
$errormgr->addError('No fonts available!');
$errormgr->displayError();
die;
}
if (function_exists('imagettftext') == FALSE) {
$errormgr->addError('Function imagettftext does not exist');
$errormgr->displayError();
die;
}
$this->stringGenerate();
$this->makeCaptcha();
}
