WB 2.08.x

------------------------------------- 2.7.0 -------------------------------------

28-Jan-2008 Thomas Hornik

+	Added Text-CAPTCHA on request. The captcha-text will be stored in temp/.captcha_text.txt

<?php

// $Id$

/*

 Website Baker Project <http://www.websitebaker.org/>

 Copyright (C) 2004-2008, Ryan Djurovich

 Website Baker is free software; you can redistribute it and/or modify

 it under the terms of the GNU General Public License as published by

 the Free Software Foundation; either version 2 of the License, or

 (at your option) any later version.

 Website Baker is distributed in the hope that it will be useful,

 but WITHOUT ANY WARRANTY; without even the implied warranty of

 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License

 along with Website Baker; if not, write to the Free Software

 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

*/

// Must include code to stop this file being accessed directly

if(defined('WB_PATH') == false) { exit("Cannot access this file directly"); }

$name = 'text';

$file = WB_PATH."/temp/.captcha_$name.txt";

srand((double)microtime()*100000);

$_SESSION['captcha'] = rand(0,99999);

// get questions and answers

$qa = array();

@$content = file($file);

if($content===FALSE) {

	echo '<b>Error</b>: Can not read text! Enter <b>0</b> to solve this captcha';

	$_SESSION['captcha'] = '0';

	exit;

}

reset($content);

while($s = current($content)) {

	// get question

	$s=trim(rtrim(rtrim($s,"\n"),"\r")); // remove newline

	if($s=='' OR $s{0}!='?') {

		next($content);

		continue;

	}

	if(isset($s{3}) && $s{3}==':') {

		$lang=substr($s,1,2);

		$q=substr($s,4);

	}	else {

		$lang='XX';

		$q=substr($s,1);

	}

	// get answer

	$s=next($content);

	$s=trim(rtrim(rtrim($s,"\n"),"\r")); // remove newline

	if($s{0}!='!') continue;

	$a=substr($s,1);

	$qa[$lang][$q]=$a;

	next($content);

}

if($qa == array()) {

	echo '<b>Error</b>: no text defined! Enter <b>0</b> to solve this captcha';

	$_SESSION['captcha'] = '0';

	exit;

}

// choose language to use

if(defined('LANGUAGE') && isset($qa[LANGUAGE]))

	$lang = LANGUAGE;

else

	$lang = 'XX';

if(!isset($qa[$lang])) {

	echo '<b>Error</b>: no text defined! Enter <b>0</b> to solve this captcha';

	$_SESSION['captcha'] = '0';

	exit;

}

// choose random question

$k = array_rand($qa[$lang]);

$_SESSION['captcha'] = $qa[$lang][$k];

echo $k;

?>

		'old_image'=>$MOD_CAPTCHA_CONTROL['OLD_IMAGE'],

		'text'=>$MOD_CAPTCHA_CONTROL['TEXT']

		'old_image'=>$MOD_CAPTCHA_CONTROL['OLD_IMAGE'],

		'text'=>$MOD_CAPTCHA_CONTROL['TEXT']

		'calc_text'=>$MOD_CAPTCHA_CONTROL['CALC_TEXT'],

		'text'=>$MOD_CAPTCHA_CONTROL['TEXT']

			// one special case

			case 'text': // text-captcha

				?><table class="captcha_table"><tr>

				<td class="text_captcha"><?php include(WB_PATH.'/include/captcha/captchas/text.php'); ?></td>

				<td><input type="text" name="captcha" maxlength="10"  style="width:70px" /></td>

				<td class="captcha_expl"><?php echo $MOD_CAPTCHA['VERIFICATION_INFO_QUEST']; ?></td>

				</tr></table><?php

				break;

				<td class="text_captcha"><?php include(WB_PATH.'/include/captcha/captchas/calc_text.php'); ?>&nbsp;=&nbsp;</td>

				<td class="image_captcha"><img src="<?php echo WB_URL."/include/captcha/captchas/calc_image.php?t=$t"; ?>" alt="Captcha" /></td><td>&nbsp;=&nbsp;</td>

				<td class="image_captcha"><img src="<?php echo WB_URL.'/include/captcha/captchas/'.CAPTCHA_TYPE.".php?t=$t"; ?>" alt="Captcha" /></td>

	// save text-captchas

	if($_POST['captcha_type'] == 'text') {

		$text_qa=$admin->add_slashes($_POST['text_qa']);

		if($fh = fopen(WB_PATH.'/temp/.captcha_text.txt', 'wb')) {

			fwrite($fh, $text_qa);

			fclose($fh);

		}

	}

	// load text-captchas

	$text_qa='';

	if(file_exists(WB_PATH.'/include/captcha/captchas/text.php')) {

		if(file_exists(WB_PATH.'/temp/.captcha_text.txt')) {

			@$content = file(WB_PATH.'/temp/.captcha_text.txt');

			if($content!==FALSE) {

				$text_qa = $admin->strip_slashes(implode('', $content));

			}

		}

	}

	pics["text"] = new Image();

	pics["text"].src = "<?php echo WB_URL.'/include/captcha/captchas/text.png'?>";

		toggle_text_qa();

	function toggle_text_qa() {

		if(document.store_settings.captcha_type.value == 'text' ) {

			document.getElementById('text_qa').style.display = '';

		} else {

			document.getElementById('text_qa').style.display = 'none';

		}

	}

	<tr id="text_qa" style="display:<?php if($captcha_type=='text') echo ''; else echo 'none'; ;?>;">

		<td class="setting_name"><?php echo $MOD_CAPTCHA_CONTROL['CAPTCHA_ENTER_TEXT'];?>:</td>

		<td class="setting_value" colspan="2">

			<textarea name="text_qa" wrap="off" cols="50" rows="10"><?php echo $text_qa; ?></textarea>

		</td>

	</tr>

$MOD_CAPTCHA_CONTROL['ASP_EXP']           = 'ASP tries to determine if a form-input was originated from a human or a spam-bot.';

$MOD_CAPTCHA_CONTROL['CALC_TEXT']         = 'Calculation as text';

$MOD_CAPTCHA_CONTROL['CALC_IMAGE']        = 'Calculation as image';

$MOD_CAPTCHA_CONTROL['CALC_TTF_IMAGE']    = 'Calculation as image with varying fonts and backgrounds'; 

$MOD_CAPTCHA_CONTROL['TTF_IMAGE']         = 'Image with varying fonts and backgrounds';

$MOD_CAPTCHA_CONTROL['OLD_IMAGE']         = 'Old style (not recommended)';

$MOD_CAPTCHA_CONTROL['TEXT']              = 'Text-CAPTCHA';

$MOD_CAPTCHA_CONTROL['CAPTCHA_ENTER_TEXT']= 'Questions and Answers';

$MOD_CAPTCHA['VERIFICATION_INFO_QUEST'] = 'Answer the question';

$MOD_CAPTCHA_CONTROL['CALC_TEXT']         = 'Rechnung als Text';

$MOD_CAPTCHA_CONTROL['CALC_IMAGE']        = 'Rechnung als Bild';

$MOD_CAPTCHA_CONTROL['CALC_TTF_IMAGE']    = 'Rechnung als Bild mit wechselnden Schriften und Hintergründen';

$MOD_CAPTCHA_CONTROL['TTF_IMAGE']         = 'Bild mit wechselnden Schriften und Hintergründen';

$MOD_CAPTCHA_CONTROL['OLD_IMAGE']         = 'Alter Stil (nicht empfohlen)';

$MOD_CAPTCHA_CONTROL['TEXT']              = 'Text-CAPTCHA';

$MOD_CAPTCHA_CONTROL['CAPTCHA_ENTER_TEXT']= 'Fragen und Antworten';

$MOD_CAPTCHA['VERIFICATION_INFO_QUEST'] = 'Bitte Frage beantworten';