14 files changed, 2097 insertions, 333 deletions
diff --git a/phpBB/includes/acp/acp_captcha.php b/phpBB/includes/acp/acp_captcha.php
index 93505e1590..ed2ccf6ccc 100644
--- a/phpBB/includes/acp/acp_captcha.php
+++ b/phpBB/includes/acp/acp_captcha.php
@@ -10,6 +10,8 @@
 /**
 * @ignore
 */
+
+
 if (!defined('IN_PHPBB'))
 {
 	exit;
@@ -28,108 +30,119 @@ class acp_captcha
 		global $config, $phpbb_root_path, $phpbb_admin_path, $phpEx;
 
 		$user->add_lang('acp/board');
-		$captcha_vars = array(
-			'captcha_gd_x_grid'				=> 'CAPTCHA_GD_X_GRID',
-			'captcha_gd_y_grid'				=> 'CAPTCHA_GD_Y_GRID',
-			'captcha_gd_foreground_noise'	=> 'CAPTCHA_GD_FOREGROUND_NOISE',
-			'captcha_gd'					=> 'CAPTCHA_GD_PREVIEWED',
-			'captcha_gd_wave'				=> 'CAPTCHA_GD_WAVE',
-			'captcha_gd_3d_noise'			=> 'CAPTCHA_GD_3D_NOISE',
-			'captcha_gd_fonts'				=> 'CAPTCHA_GD_FONTS',
 
-		);
+		include($phpbb_root_path . 'includes/captcha/captcha_factory.' . $phpEx);
 
-		if (isset($_GET['demo']))
+		$selected = request_var('select_captcha', $config['captcha_plugin']);
+		$configure = request_var('configure', false);
+		
+		// Oh, they are just here for the view
+		if (isset($_GET['captcha_demo']))
 		{
-			$captcha_vars = array_keys($captcha_vars);
-
-			foreach ($captcha_vars as $captcha_var)
-			{
-				$config[$captcha_var] = (isset($_REQUEST[$captcha_var])) ? request_var($captcha_var, 0) : $config[$captcha_var];
-			}
-
-			if ($config['captcha_gd'])
-			{
-				include($phpbb_root_path . 'includes/captcha/captcha_gd.' . $phpEx);
-			}
-			else
-			{
-				include($phpbb_root_path . 'includes/captcha/captcha_non_gd.' . $phpEx);
-			}
-
-			$captcha = new captcha();
-			$captcha->execute(gen_rand_string(mt_rand(CAPTCHA_MIN_CHARS, CAPTCHA_MAX_CHARS)), time());
-			exit;
+			$this->deliver_demo($selected);
 		}
-
-		$config_vars = array(
-			'enable_confirm'		=> 'REG_ENABLE',
-			'enable_post_confirm'	=> 'POST_ENABLE',
-			'confirm_refresh'		=> 'CONFIRM_REFRESH',
-			'captcha_gd'			=> 'CAPTCHA_GD',
-		);
-
-		$this->tpl_name = 'acp_captcha';
-		$this->page_title = 'ACP_VC_SETTINGS';
-		$form_key = 'acp_captcha';
-		add_form_key($form_key);
-
-		$submit = request_var('submit', '');
-
-		if ($submit && check_form_key($form_key))
+		
+		// Delegate
+		if ($configure)
 		{
-			$config_vars = array_keys($config_vars);
+			$config_captcha = phpbb_captcha_factory::get_instance($selected);
+			$config_captcha->acp_page($id, $this);
+			add_log('admin', 'LOG_CONFIG_VISUAL');
+		}
+		else
+		{
+			$captchas = phpbb_captcha_factory::get_captcha_types();
+			$config_vars = array(
+				'enable_confirm'		=> 'REG_ENABLE',
+				'enable_post_confirm'	=> 'POST_ENABLE',
+				'confirm_refresh'		=> 'CONFIRM_REFRESH',
+			);
 
-			foreach ($config_vars as $config_var)
-			{
-				set_config($config_var, request_var($config_var, ''));
-			}
+			$this->tpl_name = 'acp_captcha';
+			$this->page_title = 'ACP_VC_SETTINGS';
+			$form_key = 'acp_captcha';
+			add_form_key($form_key);
 
-			$captcha_vars = array_keys($captcha_vars);
+			$submit = request_var('main_submit', false);
 
-			foreach ($captcha_vars as $captcha_var)
+			if ($submit && check_form_key($form_key))
 			{
-				$value = request_var($captcha_var, 0);
-				if ($value >= 0)
+				$config_vars = array_keys($config_vars);
+				foreach ($config_vars as $config_var)
 				{
-					set_config($captcha_var, $value);
+					set_config($config_var, request_var($config_var, false));
 				}
+				if ($selected !== $config['captcha_plugin'])
+				{
+					// sanity check
+					if (isset($captchas['available'][$selected]))
+					{
+						$old_captcha = phpbb_captcha_factory::get_instance($config['captcha_plugin']);
+						$old_captcha->uninstall();
+						set_config('captcha_plugin', $selected);
+						$new_captcha = phpbb_captcha_factory::get_instance($config['captcha_plugin']);
+						$old_captcha->install();
+						add_log('admin', 'LOG_CONFIG_VISUAL');
+					}
+					else
+					{
+						trigger_error($user->lang['CAPTCHA_UNAVAILABLE'] . adm_back_link($this->u_action));
+					}
+				}
+				trigger_error($user->lang['CONFIG_UPDATED'] . adm_back_link($this->u_action));
 			}
-
-			add_log('admin', 'LOG_CONFIG_VISUAL');
-			trigger_error($user->lang['CONFIG_UPDATED'] . adm_back_link($this->u_action));
-		}
-		else if ($submit)
-		{
-			trigger_error($user->lang['FORM_INVALID'] . adm_back_link($this->u_action));
-		}
-		else
-		{
-			$preview_image_src = append_sid(append_sid("{$phpbb_admin_path}index.$phpEx", "i=$id&amp;demo=demo"));
-
-			if (@extension_loaded('gd'))
+			else if ($submit)
 			{
-				$template->assign_var('GD', true);
+				trigger_error($user->lang['FORM_INVALID'] . adm_back_link());
 			}
-
-			foreach ($config_vars as $config_var => $template_var)
+			else
 			{
-				$template->assign_var($template_var, (isset($_REQUEST[$config_var])) ? request_var($config_var, '') : $config[$config_var]) ;
-			}
+				$captcha_select = '';
+				foreach ($captchas['available'] as $value => $title)
+				{
+					$current = ($selected !== false && $value == $selected) ? ' selected="selected"' : '';
+					$captcha_select .= '<option value="' . $value . '"' . $current . '>' . $user->lang[$title] . '</option>';
+				}
+				foreach ($captchas['unavailable'] as $value => $title)
+				{
+					$current = ($selected !== false && $value == $selected) ? ' selected="selected"' : '';
+					$captcha_select .= '<option value="' . $value . '"' . $current . ' class="disabled-option" >' . $user->lang[$title] . '</option>';
+				}
 
-			foreach ($captcha_vars as $captcha_var => $template_var)
-			{
-				$var = (isset($_REQUEST[$captcha_var])) ? request_var($captcha_var, 0) : $config[$captcha_var];
-				$template->assign_var($template_var, $var);
-				$preview_image_src .= "&amp;$captcha_var=" . $var;
+				$demo_captcha = phpbb_captcha_factory::get_instance($selected);
+				
+				foreach ($config_vars as $config_var => $template_var)
+				{
+					$template->assign_var($template_var, (isset($_REQUEST[$config_var])) ? request_var($config_var, '') : $config[$config_var]) ;
+				}
+
+				$template->assign_vars(array(
+					'CAPTCHA_PREVIEW'	=> $demo_captcha->get_demo_template($id),
+					'CAPTCHA_SELECT'	=> $captcha_select,
+				));
 			}
 
-			$template->assign_vars(array(
-				'CAPTCHA_PREVIEW'	=> $preview_image_src,
-				'PREVIEW'			=> isset($_POST['preview']),
-			));
 		}
 	}
+	
+	
+	/**
+	* Entry point for delivering image CAPTCHAs in the ACP.
+	*/
+	function deliver_demo($selected)
+	{
+		global $db, $user, $config;
+		
+		$captcha = phpbb_captcha_factory::get_instance($selected);
+		$captcha->init(CONFIRM_REG);
+		$captcha->execute_demo();
+		garbage_collection();
+		exit_handler();
+	}
+	
+	
+	
+	
 }
 
 ?>
 \ No newline at end of file
diff --git a/phpBB/includes/auth/auth_db.php b/phpBB/includes/auth/auth_db.php
index 24d4c56614..bdafefa70b 100644
--- a/phpBB/includes/auth/auth_db.php
+++ b/phpBB/includes/auth/auth_db.php
@@ -81,42 +81,15 @@ function login_db(&$username, &$password)
 		}
 		else
 		{
-			global $user;
-
-			$sql = 'SELECT code
-				FROM ' . CONFIRM_TABLE . "
-				WHERE confirm_id = '" . $db->sql_escape($confirm_id) . "'
-					AND session_id = '" . $db->sql_escape($user->session_id) . "'
-					AND confirm_type = " . CONFIRM_LOGIN;
-			$result = $db->sql_query($sql);
-			$confirm_row = $db->sql_fetchrow($result);
-			$db->sql_freeresult($result);
-
-			if ($confirm_row)
+			$captcha = phpbb_captcha_factory::get_instance($config['captcha_plugin']);
+			$captcha->init(CONFIRM_LOGIN);
+			$vc_response = $captcha->validate();
+			if ($vc_response)
 			{
-				if (strcasecmp($confirm_row['code'], $confirm_code) === 0)
-				{
-					$sql = 'DELETE FROM ' . CONFIRM_TABLE . "
-						WHERE confirm_id = '" . $db->sql_escape($confirm_id) . "'
-							AND session_id = '" . $db->sql_escape($user->session_id) . "'
-							AND confirm_type = " . CONFIRM_LOGIN;
-					$db->sql_query($sql);
-				}
-				else
-				{
-					return array(
+				return array(
 						'status'		=> LOGIN_ERROR_ATTEMPTS,
-						'error_msg'		=> 'CONFIRM_CODE_WRONG',
+						'error_msg'		=> 'LOGIN_ERROR_ATTEMPTS',
 						'user_row'		=> $row,
-					);
-				}
-			}
-			else
-			{
-				return array(
-					'status'		=> LOGIN_ERROR_ATTEMPTS,
-					'error_msg'		=> 'CONFIRM_CODE_WRONG',
-					'user_row'		=> $row,
 				);
 			}
 		}
diff --git a/phpBB/includes/captcha/captcha_factory.php b/phpBB/includes/captcha/captcha_factory.php
new file mode 100755
index 0000000000..e6f56172ec
--- /dev/null
+++ b/phpBB/includes/captcha/captcha_factory.php
@@ -0,0 +1,92 @@
+<?
+/**
+*
+* @package VC
+* @version $Id: $
+* @copyright (c) 2008 phpBB Group
+* @license http://opensource.org/licenses/gpl-license.php GNU Public License
+*
+*/
+
+/**
+* @ignore
+*/
+if (!defined('IN_PHPBB'))
+{
+	exit;
+}
+
+
+/** A small class until we get the autoloader done */
+class phpbb_captcha_factory
+{
+	/**
+	* return an instance of class $name in file $name_plugin.php
+	*/
+	function get_instance($name)
+	{
+		global $phpbb_root_path, $phpEx;
+		
+		$name = basename($name);
+		if (!class_exists($name))
+		{
+			include($phpbb_root_path . "includes/captcha/plugins/{$name}_plugin." . $phpEx);
+		}
+		return call_user_func(array($name, 'get_instance'));
+	}
+	
+	/**
+	* Call the garbage collector
+	*/
+	function garbage_collect($name)
+	{
+		global $phpbb_root_path, $phpEx;
+
+		$name = basename($name);
+		if (!class_exists($name))
+		{
+			include($phpbb_root_path . "includes/captcha/plugins/{$name}_plugin." . $phpEx);
+		}
+		call_user_func(array($name, 'garbage_collect'), 0);
+	}
+	
+	/**
+	* return a list of all discovered CAPTCHA plugins
+	*/
+	function get_captcha_types()
+	{
+		global $phpbb_root_path, $phpEx;
+	
+		$captchas = array();
+		$captchas['available'] = array();
+		$captchas['unavailable'] = array();
+	
+		$dp = @opendir($phpbb_root_path . 'includes/captcha/plugins');
+
+		if ($dp)
+		{
+			while (($file = readdir($dp)) !== false)
+			{
+				if ((preg_match('#_plugin\.' . $phpEx . '$#', $file)))
+				{
+					$name = preg_replace('#^(.*?)_plugin\.' . $phpEx . '$#', '\1', $file);
+					if (!class_exists($name))
+					{
+						include($phpbb_root_path . "includes/captcha/plugins/$file");
+					}
+					if (call_user_func(array($name, 'is_available')))
+					{
+						$captchas['available'][$name] = call_user_func(array($name, 'get_name'));
+					}
+					else
+					{
+						$captchas['unavailable'][$name] = call_user_func(array($name, 'get_name'));
+					}
+				}
+			}
+			closedir($dp);
+		}
+
+		return $captchas;
+	}
+}
+\ No newline at end of file
diff --git a/phpBB/includes/captcha/captcha_gd_wave.php b/phpBB/includes/captcha/captcha_gd_wave.php
new file mode 100755
index 0000000000..0356538a4d
--- /dev/null
+++ b/phpBB/includes/captcha/captcha_gd_wave.php
@@ -0,0 +1,842 @@
+<?php
+/** 
+*
+* @package VC
+* @version $Id: captcha_gd.php,v 1.19 2007/01/26 16:07:43 acydburn Exp $
+* @copyright (c) 2006 phpBB Group 
+* @license http://opensource.org/licenses/gpl-license.php GNU Public License 
+*
+*/
+
+
+/** 
+Wave3D CAPTCHA by Robert Hetzler
+*/
+class captcha
+{
+	var $width		= 360;
+	var $height		= 96;
+
+	function execute($code, $seed)
+	{
+		global $starttime;
+		
+		// seed the random generator
+		mt_srand($seed);
+	
+		// set height and width
+		$img_x = $this->width;
+		$img_y = $this->height;
+
+		// Generate image
+		$img	= imagecreatetruecolor($img_x, $img_y);
+		$x_grid = mt_rand(6, 10);
+		$y_grid = mt_rand(6, 10);
+ 
+		// Ok, so lets cut to the chase. We could accurately represent this in 3d and
+		// do all the appropriate linear transforms. my questions is... why bother?
+		// The computational overhead is unnecessary when you consider the simple fact:
+		// we're not here to accurately represent a model, but to just show off some random-ish
+		// polygons
+
+		// Conceive of 3 spaces.
+		// 1) planar-space (discrete "pixel" grid)
+		// 2) 3-space. (planar-space with z/height aspect)
+		// 3) image space (pixels on the screen)
+		// resolution of the planar-space we're embedding the text code in
+		$plane_x	= 100;
+		$plane_y	= 30;
+
+		$subdivision_factor	= 3;
+		// $box is the 4 points in img_space that correspond to the corners of the plane in 3-space
+		$box = array(
+			'upper_left'	=> array(
+				'x' => mt_rand(5, 15),
+				'y' => mt_rand(10, 15)
+			), 
+			'upper_right'	=> array(
+				'x' => mt_rand($img_x - 35, $img_x - 19),
+				'y' => mt_rand(10, 17)
+			), 
+			'lower_left'	=> array(
+				'x' => mt_rand($img_x - 5, $img_x - 45),
+				'y' => mt_rand($img_y - 0, $img_y - 15)
+			), 
+		);
+		$box['lower_right'] = array(
+				'x' => $box['lower_left']['x'] + $box['upper_left']['x'] - $box['upper_right']['x'],
+				'y' => $box['lower_left']['y'] + $box['upper_left']['y'] - $box['upper_right']['y'],
+		);
+
+
+		// TODO
+		$background = imagecolorallocate($img, mt_rand(155, 255), mt_rand(155, 255), mt_rand(155, 255));
+		imagefill($img, 0, 0, $background);
+		$black = imagecolorallocate($img, 0, 0, 0);
+
+		$random = array();
+		$fontcolors = array();
+
+		for ($i = 0; $i < 15; ++$i)
+		{
+			$random[$i] = imagecolorallocate($img, mt_rand(120, 255), mt_rand(120, 255), mt_rand(120, 255));
+		}
+
+		$fontcolors[0] = imagecolorallocate($img, mt_rand(0, 120), mt_rand(0, 120), mt_rand(0, 120));
+		
+ 		$colors = array();
+
+		$minr = mt_rand(20, 30);
+		$ming = mt_rand(20, 30);
+		$minb = mt_rand(20, 30);
+
+		$maxr = mt_rand(150, 230);
+		$maxg = mt_rand(150, 230);
+		$maxb = mt_rand(150, 230);
+
+		for ($i = -30; $i <= 30; ++$i)
+		{
+			$coeff1 = ($i + 12) / 45;
+			$coeff2 = 1 - $coeff1;
+			$colors[$i] = imagecolorallocate($img, ($coeff2 * $maxr) + ($coeff1 * $minr), ($coeff2 * $maxg) + ($coeff1 * $ming), ($coeff2 * $maxb) + ($coeff1 * $minb));
+		}
+
+		// $img_buffer is the last row of 3-space positions (converted to img-space), cached
+		// (using this means we don't need to recalculate all 4 positions for each new polygon,
+		// merely the newest point that we're adding, which is then cached.
+		$img_buffer = array(array(), array());
+
+		// In image-space, the x- and y-offset necessary to move one unit in the x-direction in planar-space
+		$dxx = ($box['upper_right']['x'] - $box['upper_left']['x']) / ($subdivision_factor * $plane_x);
+		$dxy = ($box['upper_right']['y'] - $box['upper_left']['y']) / ($subdivision_factor * $plane_x);
+
+		// In image-space, the x- and y-offset necessary to move one unit in the y-direction in planar-space
+		$dyx = ($box['lower_right']['x'] - $box['upper_left']['x']) / ($subdivision_factor * $plane_y);
+		$dyy = ($box['lower_right']['y'] - $box['upper_left']['y']) / ($subdivision_factor * $plane_y);
+
+		// Initial captcha-letter offset in planar-space
+		$plane_offset_x = mt_rand(3, 8);
+		$plane_offset_y = mt_rand( 12, 15);
+
+		// character map
+		$map = $this->captcha_bitmaps();
+
+		// matrix
+		$plane = array();
+
+		// for each character, we'll silkscreen it into our boolean pixel plane
+		for ($c = 0, $code_num = strlen($code); $c < $code_num; ++$c)
+		{
+			$letter = $code[$c];
+
+			for ($x = $map['width'] - 1; $x >= 0; --$x)
+			{
+				for ($y = $map['height'] - 1; $y >= 0; --$y)
+				{
+					if ($map['data'][$letter][$y][$x])
+					{
+						$plane[$y + $plane_offset_y + (($c & 1) ? 1 : -1)][$x + $plane_offset_x] = true;
+					}
+				}
+			}
+			$plane_offset_x += 11;
+		}
+
+		// calculate our first buffer, we can't actually draw polys with these yet
+		// img_pos_prev == screen x,y location to our immediate left.
+		// img_pos_cur == current screen x,y location
+		// we calculate screen position of our
+		// current cell based on the difference from the previous cell
+		// rather than recalculating from absolute coordinates
+		// What we cache into the $img_buffer contains the raised text coordinates.
+		$img_pos_prev	= $img_buffer[0][0] = array($box['upper_left']['x'], $box['upper_left']['y']);
+		$cur_height		= $prev_height = $this->wave_height(0, 0, $subdivision_factor);
+		$full_x			= $plane_x * $subdivision_factor;
+		$full_y			= $plane_y * $subdivision_factor;
+
+		for ($x = 1; $x <= $full_x; ++$x)
+		{
+			$cur_height		= $this->wave_height($x, 0, $subdivision_factor);
+			$offset			= $cur_height - $prev_height;
+			$img_pos_cur	= array($img_pos_prev[0] + $dxx, $img_pos_prev[1] + $dxy + $offset);
+									
+			$img_buffer[0][$x]	= $img_pos_cur;
+			$img_pos_prev		= $img_pos_cur;
+			$prev_height		= $cur_height;
+		}
+
+		for ($y = 1; $y <= $full_y; ++$y)
+		{
+			// swap buffers
+			$buffer_cur		= $y & 1;
+			$buffer_prev	= 1 - $buffer_cur;
+			
+			$prev_height	= $this->wave_height(0, $y, $subdivision_factor);
+			$offset			= $prev_height - $this->wave_height(0, $y - 1, $subdivision_factor);
+			$img_pos_cur	= array($img_buffer[$buffer_prev][0][0] + $dyx, min($img_buffer[$buffer_prev][0][1] + $dyy + $offset, $img_y - 1));
+
+			// make sure we don't try to write off the page
+			$img_pos_prev	= $img_pos_cur;
+
+			$img_buffer[$buffer_cur][0]	= $img_pos_cur;
+			
+			for ($x = 1; $x <= $full_x; ++$x)
+			{
+				$cur_height		= $this->wave_height($x, $y, $subdivision_factor) + $this->grid_height($x, $y, 1, $x_grid, $y_grid);
+
+				// height is a z-factor, not a y-factor
+				$offset			= $cur_height - $prev_height;
+				$img_pos_cur	= array($img_pos_prev[0] + $dxx, $img_pos_prev[1] + $dxy + $offset);
+
+				// height is float, index it to an int, get closest color
+				$color			= $colors[intval($cur_height)];
+				$img_pos_prev	= $img_pos_cur;
+				$prev_height	= $cur_height;
+
+				$y_index_old = intval(($y - 1) / $subdivision_factor);
+				$y_index_new = intval($y / $subdivision_factor);
+				$x_index_old = intval(($x - 1) / $subdivision_factor);
+				$x_index_new = intval($x / $subdivision_factor);
+
+				if (!empty($plane[$y_index_new][$x_index_new]))
+				{
+					$img_pos_cur[1]	+= $this->wave_height($x, $y, $subdivision_factor, 1) - 30 - $cur_height;
+					$color			= $colors[20];
+				}
+				$img_pos_cur[1] = min($img_pos_cur[1], $img_y - 1);
+				$img_buffer[$buffer_cur][$x] = $img_pos_cur;
+
+				// Smooth the edges as much as possible by having not more than one low<->high traingle per square
+				// Otherwise, just
+				$diag_down	= (empty($plane[$y_index_old][$x_index_old]) == empty($plane[$y_index_new][$x_index_new]));
+				$diag_up	= (empty($plane[$y_index_old][$x_index_new]) == empty($plane[$y_index_new][$x_index_old]));
+
+				// natural switching
+				$mode = ($x + $y) & 1;
+
+				// override if it requires it
+				if ($diag_down != $diag_up)
+				{
+					$mode = $diag_up;
+				}
+
+				if ($mode)
+				{
+					//		+-/			  /
+					// 1	|/		2	 /|
+					//		/			/-+
+					$poly1 = array_merge($img_buffer[$buffer_cur][$x - 1], $img_buffer[$buffer_prev][$x - 1], $img_buffer[$buffer_prev][$x]);
+					$poly2 = array_merge($img_buffer[$buffer_cur][$x - 1], $img_buffer[$buffer_cur][$x], $img_buffer[$buffer_prev][$x]);
+				}
+				else
+				{
+					//		\			\-+
+					// 1	|\		2	 \|
+					//		+-\			  \
+					$poly1 = array_merge($img_buffer[$buffer_cur][$x - 1], $img_buffer[$buffer_prev][$x - 1], $img_buffer[$buffer_cur][$x]);
+					$poly2 = array_merge($img_buffer[$buffer_prev][$x - 1], $img_buffer[$buffer_prev][$x], $img_buffer[$buffer_cur][$x]);
+				}
+
+				imagefilledpolygon($img, $poly1, 3, $color);
+				imagefilledpolygon($img, $poly2, 3, $color);
+			}
+		}
+
+		// Output image
+		header('Content-Type: image/png');
+		header('Cache-control: no-cache, no-store');
+		//$mtime = explode(' ', microtime());
+		//$totaltime = $mtime[0] + $mtime[1] - $starttime;
+
+		//echo $totaltime . "<br />\n";
+		//echo memory_get_usage() - $tmp;
+		imagepng($img);
+		imagedestroy($img);
+	}
+
+	function wave_height($x, $y, $factor = 1, $tweak = 0.7)
+	{
+		// stretch the wave. TODO: pretty it up
+		$x = $x/5 + 180;
+		$y = $y/4;
+		return ((sin($x / (3 * $factor)) + sin($y / (3 * $factor))) * 10 * $tweak);
+	}
+
+	function grid_height($x, $y, $factor = 1, $x_grid, $y_grid)
+	{
+		return ((!($x % ($x_grid * $factor)) || !($y % ($y_grid * $factor))) ? 3 : 0);
+	}
+
+	function captcha_bitmaps()
+	{
+		return array(
+			'width'		=> 9,
+			'height'	=> 13,
+			'data'		=> array(
+				'A' => array(
+					array(0,0,1,1,1,1,0,0,0),
+					array(0,1,0,0,0,0,1,0,0),
+					array(1,0,0,0,0,0,0,1,0),
+					array(1,0,0,0,0,0,0,1,0),
+					array(1,0,0,0,0,0,0,1,0),
+					array(1,0,0,0,0,0,0,1,0),
+					array(1,0,0,0,0,0,0,1,0),
+					array(1,1,1,1,1,1,1,1,0),
+					array(1,0,0,0,0,0,0,1,0),
+					array(1,0,0,0,0,0,0,1,0),
+					array(1,0,0,0,0,0,0,1,0),
+					array(1,0,0,0,0,0,0,1,0),
+					array(1,0,0,0,0,0,0,1,0),
+					array(0,0,0,0,0,0,0,0,0),
+				),
+				'B' => array(
+					array(1,1,1,1,1,1,0,0,0),
+					array(1,0,0,0,0,0,1,0,0),
+					array(1,0,0,0,0,0,0,1,0),
+					array(1,0,0,0,0,0,0,1,0),
+					array(1,0,0,0,0,0,0,1,0),
+					array(1,0,0,0,0,0,1,0,0),
+					array(1,1,1,1,1,1,0,0,0),
+					array(1,0,0,0,0,0,1,0,0),
+					array(1,0,0,0,0,0,0,1,0),
+					array(1,0,0,0,0,0,0,1,0),
+					array(1,0,0,0,0,0,0,1,0),
+					array(1,0,0,0,0,0,1,0,0),
+					array(1,1,1,1,1,1,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+				),
+				'C' => array(
+					array(0,0,1,1,1,1,1,0,0),
+					array(0,1,0,0,0,0,0,1,0),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,1),
+					array(0,1,0,0,0,0,0,1,0),
+					array(0,0,1,1,1,1,1,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+				),
+				'D' => array(
+					array(1,1,1,1,1,1,1,0,0),
+					array(1,0,0,0,0,0,0,1,0),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,1,0),
+					array(1,1,1,1,1,1,1,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+				),
+				'E' => array(
+					array(0,0,1,1,1,1,1,1,1),
+					array(0,1,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,1,1,1,1,1,1,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(0,1,0,0,0,0,0,0,0),
+					array(0,0,1,1,1,1,1,1,1),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+				),
+				'F' => array(
+					array(0,0,1,1,1,1,1,1,0),
+					array(0,1,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,1,1,1,1,1,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+				),
+				'G' => array(
+					array(0,0,1,1,1,1,1,0,0),
+					array(0,1,0,0,0,0,0,1,0),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,1,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(0,1,0,0,0,0,0,1,0),
+					array(0,0,1,1,1,1,1,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+				),
+				'H' => array(
+					array(1,0,0,0,0,0,1,0,0),
+					array(1,0,0,0,0,0,1,0,0),
+					array(1,0,0,0,0,0,1,0,0),
+					array(1,0,0,0,0,0,1,0,0),
+					array(1,0,0,0,0,0,1,0,0),
+					array(1,1,1,1,1,1,1,0,0),
+					array(1,0,0,0,0,0,1,0,0),
+					array(1,0,0,0,0,0,1,0,0),
+					array(1,0,0,0,0,0,1,0,0),
+					array(1,0,0,0,0,0,1,0,0),
+					array(1,0,0,0,0,0,1,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+				),
+				'I' => array(
+					array(0,1,1,1,1,1,1,1,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,1,1,1,1,1,1,1,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+				),
+				'J' => array(
+					array(0,0,0,0,0,0,1,1,1),
+					array(0,0,0,0,0,0,0,0,1),
+					array(0,0,0,0,0,0,0,0,1),
+					array(0,0,0,0,0,0,0,0,1),
+					array(0,0,0,0,0,0,0,0,1),
+					array(0,0,0,0,0,0,0,0,1),
+					array(0,0,0,0,0,0,0,0,1),
+					array(0,1,0,0,0,0,0,0,1),
+					array(0,1,0,0,0,0,0,0,1),
+					array(0,0,1,0,0,0,0,1,0),
+					array(0,0,0,1,1,1,1,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+				),
+				'K' => array(
+					array(1,0,0,0,0,0,1,0,0),
+					array(1,0,0,0,0,1,0,0,0),
+					array(1,0,0,0,1,0,0,0,0),
+					array(1,0,0,1,0,0,0,0,0),
+					array(1,0,1,0,0,0,0,0,0),
+					array(1,1,0,0,0,0,0,0,0),
+					array(1,0,1,0,0,0,0,0,0),
+					array(1,0,0,1,0,0,0,0,0),
+					array(1,0,0,0,1,0,0,0,0),
+					array(1,0,0,0,0,1,0,0,0),
+					array(1,0,0,0,0,0,1,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+				),
+				'L' => array(
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(0,1,0,0,0,0,0,0,0),
+					array(0,0,1,1,1,1,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+				),
+				'M' => array(
+					array(0,1,0,0,0,0,0,1,0),
+					array(0,1,1,0,0,0,1,1,0),
+					array(0,1,0,1,0,1,0,1,0),
+					array(0,1,0,0,1,0,0,1,0),
+					array(0,1,0,0,0,0,0,1,0),
+					array(0,1,0,0,0,0,0,1,0),
+					array(0,1,0,0,0,0,0,1,0),
+					array(0,1,0,0,0,0,0,1,0),
+					array(0,1,0,0,0,0,0,1,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+				),
+				'N' => array(
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,1,0,0,0,0,0,0,1),
+					array(1,0,1,0,0,0,0,0,1),
+					array(1,0,0,1,0,0,0,0,1),
+					array(1,0,0,0,1,0,0,0,1),
+					array(1,0,0,0,0,1,0,0,1),
+					array(1,0,0,0,0,0,1,0,1),
+					array(1,0,0,0,0,0,0,1,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+				),		
+				'O' => array(
+					array(0,0,0,1,1,1,0,0,0),
+					array(0,0,1,0,0,0,1,0,0),
+					array(0,1,0,0,0,0,0,1,0),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(0,1,0,0,0,0,0,1,0),
+					array(0,0,1,0,0,0,1,0,0),
+					array(0,0,0,1,1,1,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+				),
+				'P' => array(
+					array(1,1,1,1,1,1,0,0,0),
+					array(1,0,0,0,0,0,1,0,0),
+					array(1,0,0,0,0,0,0,1,0),
+					array(1,0,0,0,0,0,0,1,0),
+					array(1,0,0,0,0,0,0,1,0),
+					array(1,0,0,0,0,0,0,1,0),
+					array(1,0,0,0,0,0,1,0,0),
+					array(1,1,1,1,1,1,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+				),
+				'Q' => array(
+					array(0,0,1,1,1,1,0,0,0),
+					array(0,1,0,0,0,0,1,0,0),
+					array(1,0,0,0,0,0,0,1,0),
+					array(1,0,0,0,0,0,0,1,0),
+					array(1,0,0,0,0,0,0,1,0),
+					array(1,0,0,0,0,0,0,1,0),
+					array(1,0,0,0,1,0,0,1,0),
+					array(1,0,0,0,0,1,0,1,0),
+					array(0,1,0,0,0,0,1,0,0),
+					array(0,0,1,1,1,1,0,1,0),
+					array(0,0,0,0,0,0,0,0,1),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+				),
+				'R' => array(
+					array(1,1,1,1,1,1,0,0,0),
+					array(1,0,0,0,0,0,1,0,0),
+					array(1,0,0,0,0,0,0,1,0),
+					array(1,0,0,0,0,0,0,1,0),
+					array(1,0,0,0,0,0,0,1,0),
+					array(1,0,0,0,0,0,1,0,0),
+					array(1,1,1,1,1,1,0,0,0),
+					array(1,0,1,0,0,0,0,0,0),
+					array(1,0,0,1,0,0,0,0,0),
+					array(1,0,0,0,1,0,0,0,0),
+					array(1,0,0,0,0,1,0,0,0),
+					array(1,0,0,0,0,0,1,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+				),
+				'S' => array(
+					array(0,0,1,1,1,1,1,1,1),
+					array(0,1,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(0,1,0,0,0,0,0,0,0),
+					array(0,0,1,1,1,1,1,0,0),
+					array(0,0,0,0,0,0,0,1,0),
+					array(0,0,0,0,0,0,0,0,1),
+					array(0,0,0,0,0,0,0,0,1),
+					array(0,0,0,0,0,0,0,1,0),
+					array(1,1,1,1,1,1,1,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+				),
+				'T' => array(
+					array(1,1,1,1,1,1,1,1,1),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+				),
+				'U' => array(
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(0,1,0,0,0,0,0,1,0),
+					array(0,0,1,1,1,1,1,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+				),
+				'V' => array(
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(0,1,0,0,0,0,0,1,0),
+					array(0,0,1,0,0,0,1,0,0),
+					array(0,0,0,1,0,1,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+				),
+				'W' => array(
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,1,0,0,0,1),
+					array(1,0,0,1,0,1,0,0,1),
+					array(1,0,1,0,0,0,1,0,1),
+					array(1,1,0,0,0,0,0,1,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+				),
+				'X' => array(
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(0,1,0,0,0,0,0,1,0),
+					array(0,0,1,0,0,0,1,0,0),
+					array(0,0,0,1,0,1,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,1,0,1,0,0,0),
+					array(0,0,1,0,0,0,1,0,0),
+					array(0,1,0,0,0,0,0,1,0),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+				),
+				'Y' => array(
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(0,1,0,0,0,0,0,1,0),
+					array(0,0,1,0,0,0,1,0,0),
+					array(0,0,0,1,0,1,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+				),
+				'Z' => array(
+					array(1,1,1,1,1,1,1,1,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(0,0,0,0,0,0,0,1,0),
+					array(0,0,0,0,0,0,1,0,0),
+					array(0,0,0,0,0,1,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,1,0,0,0,0,0),
+					array(0,0,1,0,0,0,0,0,0),
+					array(0,1,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,1,1,1,1,1,1,1,1),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+				),
+				'1' => array(
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,1,1,0,0,0,0),
+					array(0,0,1,0,1,0,0,0,0),
+					array(0,1,0,0,1,0,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,1,1,1,1,1,1,1,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+				),
+				'2' => array(
+					array(0,0,0,1,1,1,0,0,0),
+					array(0,0,1,0,0,0,1,0,0),
+					array(0,1,0,0,0,0,0,1,0),
+					array(0,0,0,0,0,0,0,0,1),
+					array(0,0,0,0,0,0,0,0,1),
+					array(0,0,0,0,0,0,0,0,1),
+					array(0,0,0,0,0,0,0,1,0),
+					array(0,0,0,0,0,0,1,0,0),
+					array(0,0,0,0,0,1,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,1,0,0,0,0,0),
+					array(0,0,1,0,0,0,0,0,0),
+					array(0,1,1,1,1,1,1,1,1),
+					array(0,0,0,0,0,0,0,0,0),
+				),
+				'3' => array(
+					array(0,0,0,1,1,1,1,0,0),
+					array(0,0,1,0,0,0,0,1,0),
+					array(0,1,0,0,0,0,0,0,1),
+					array(0,0,0,0,0,0,0,0,1),
+					array(0,0,0,0,0,0,0,0,1),
+					array(0,0,0,0,0,0,0,1,0),
+					array(0,0,0,0,0,1,1,0,0),
+					array(0,0,0,0,0,0,0,1,0),
+					array(0,0,0,0,0,0,0,0,1),
+					array(0,0,0,0,0,0,0,0,1),
+					array(0,1,0,0,0,0,0,0,1),
+					array(0,0,1,0,0,0,0,1,0),
+					array(0,0,0,1,1,1,1,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+				),
+				'4' => array(
+					array(0,0,0,0,0,0,0,1,0),
+					array(0,0,0,0,0,0,1,1,0),
+					array(0,0,0,0,0,1,0,1,0),
+					array(0,0,0,0,1,0,0,1,0),
+					array(0,0,0,1,0,0,0,1,0),
+					array(0,0,1,0,0,0,0,1,0),
+					array(0,1,1,1,1,1,1,1,1),
+					array(0,0,0,0,0,0,0,1,0),
+					array(0,0,0,0,0,0,0,1,0),
+					array(0,0,0,0,0,0,0,1,0),
+					array(0,0,0,0,0,0,0,1,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+				),
+				'5' => array(
+					array(1,1,1,1,1,1,1,1,1),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(0,1,0,0,0,0,0,0,0),
+					array(0,0,1,1,1,1,1,0,0),
+					array(0,0,0,0,0,0,0,1,0),
+					array(0,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(0,1,0,0,0,0,0,1,0),
+					array(0,0,1,1,1,1,1,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+				),
+				'6' => array(
+					array(0,0,1,1,1,1,1,0,0),
+					array(0,1,0,0,0,0,0,1,0),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,0,0,0,0,0,0),
+					array(1,0,0,1,1,1,1,0,0),
+					array(1,0,1,0,0,0,0,1,0),
+					array(1,1,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(0,1,0,0,0,0,0,1,0),
+					array(0,0,1,1,1,1,1,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+				),
+				'7' => array(
+					array(1,1,1,1,1,1,1,1,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(0,0,0,0,0,0,0,1,0),
+					array(0,0,0,0,0,0,1,0,0),
+					array(0,0,0,0,0,1,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,0,1,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+				),
+				'8' => array(
+					array(0,0,1,1,1,1,1,0,0),
+					array(0,1,0,0,0,0,0,1,0),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(0,1,0,0,0,0,0,1,0),
+					array(0,0,1,1,1,1,1,0,0),
+					array(0,1,0,0,0,0,0,1,0),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(1,0,0,0,0,0,0,0,1),
+					array(0,1,0,0,0,0,0,1,0),
+					array(0,0,1,1,1,1,1,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+				),
+				'9' => array(
+					array(0,0,0,1,1,1,1,0,0),
+					array(0,0,1,0,0,0,0,1,0),
+					array(0,1,0,0,0,0,0,0,1),
+					array(0,1,0,0,0,0,0,0,1),
+					array(0,1,0,0,0,0,0,0,1),
+					array(0,1,0,0,0,0,0,1,1),
+					array(0,0,1,1,1,1,1,0,1),
+					array(0,0,0,0,0,0,0,0,1),
+					array(0,0,0,0,0,0,0,0,1),
+					array(0,1,0,0,0,0,0,0,1),
+					array(0,0,1,0,0,0,0,1,0),
+					array(0,0,0,1,1,1,1,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+					array(0,0,0,0,0,0,0,0,0),
+				),
+			)
+		);
+	}
+}
+
+?>
+\ No newline at end of file
diff --git a/phpBB/includes/captcha/captcha_plugin.php b/phpBB/includes/captcha/captcha_plugin.php
new file mode 100755
index 0000000000..08a149764c
--- /dev/null
+++ b/phpBB/includes/captcha/captcha_plugin.php
@@ -0,0 +1,97 @@
+<?
+
+interface phpbb_captcha_plugin
+{
+	/**
+	* Initiates the CAPTCHA to validate codes. 
+	* @param int $type the type as defined in constants.php
+	*/
+	function init($type);
+
+
+	/**
+	* Returns true if the captcha will work on the current install
+	*/
+	static function is_available();
+	
+	/**
+	* Returns the translated pretty name of the captcha.
+	*/
+	static function get_name();
+	
+	/**
+	* Returns the class name of the captcha.
+	*/
+	static function get_class_name();
+	
+	/**
+	* Returns an instance; does not have to be the same instance twice.
+	*/
+	static function get_instance();
+
+	/**
+	* Returns the HTML needed to embed the captcha in another template
+	*/
+	function get_template();
+	
+	
+	/**
+	* Delivers the image of image based captchas; not required for text/remote etc CAPTCHAs
+	*/
+	function execute();
+	
+	/**
+	* Returns the HTML needed to display a demo of the captcha
+	*/
+	function get_demo_template($id);
+	
+	
+	/**
+	* Delivers the demo image of image based captchas; not required for text/remote etc CAPTCHAs
+	*/
+	function execute_demo();
+	
+	/**
+	* Clears leftover entries in the database. 
+	*/
+	static function garbage_collect($type);
+	
+	
+	/**
+	* Clears all entries from the database if the CAPTCHA is replaced
+	*/
+	function uninstall();
+	
+	/**
+	* Sets up the CAPTCHA when it is selected in the ACP.
+	*/
+	function install();
+	
+	
+	/**
+	* Checks the captcha; returns false if the code was correct; a translated error string otherwise
+	*/
+	function validate();
+	
+	/**
+	* Prepares the captcha to ask a new question; required call on failed answers
+	*/
+	function reset();
+	
+	/**
+	* Displays the configuration options in the ACP
+	*/
+	function acp_page($id, &$module);
+		
+	/**
+	* Returns the entries for the hidden field array needed to preserve the current state.
+	*/
+	function get_hidden_fields();
+	
+	
+	/**
+	* Returns the number of solving attempts of the current user 
+	*/
+	function get_attempt_count();
+
+}
+\ No newline at end of file
diff --git a/phpBB/includes/captcha/plugins/captcha_abstract.php b/phpBB/includes/captcha/plugins/captcha_abstract.php
new file mode 100755
index 0000000000..f5c135dc74
--- /dev/null
+++ b/phpBB/includes/captcha/plugins/captcha_abstract.php
@@ -0,0 +1,332 @@
+<?
+/**
+*
+* @package VC
+* @version $Id: $
+* @copyright (c) 2006 2008 phpBB Group
+* @license http://opensource.org/licenses/gpl-license.php GNU Public License
+*
+*/
+
+/**
+* @ignore
+*/
+if (!defined('IN_PHPBB'))
+{
+	exit;
+}
+
+
+/**
+* This class holds the code shared by the two default 3.0 CAPTCHAs.
+*/
+class phpbb_default_captcha
+{
+	var $confirm_id;
+	var $confirm_code;
+	var $code;
+	var $seed;
+	var $type;
+	var $solved = false;
+
+
+	function init($type)
+	{
+		global $config, $db, $user;
+		
+		// read input
+		$this->confirm_id = request_var('confirm_id', '');
+		$this->confirm_code = request_var('confirm_code', '');
+		$refresh = request_var('refresh_vc', false) && $config['confirm_refresh'];
+		
+		$this->type = (int) $type;
+		
+		if (!strlen($this->confirm_id))
+		{
+			// we have no confirm ID, better get ready to display something
+			$this->generate_code();
+		}
+		else if ($refresh)
+		{
+			$this->regenerate_code();
+		}
+
+	}
+	
+	function execute_demo()
+	{
+		global $user;
+	
+		$this->code = gen_rand_string(mt_rand(5, 8));
+		$this->seed = hexdec(substr(unique_id(), 4, 10));
+				
+		// compute $seed % 0x7fffffff
+		$this->seed -= 0x7fffffff * floor($this->seed / 0x7fffffff);
+		
+		$captcha = new captcha();
+		$captcha->execute($this->code, $this->seed);
+	}
+	
+	
+	function execute()
+	{
+		if (empty($this->code))
+		{
+			if (!$this->load_code())
+			{
+				// invalid request, bail out
+				return false;
+			}
+		}
+		$captcha = new captcha();
+		$captcha->execute($this->code, $this->seed);
+	}
+	
+	
+	function get_template()
+	{
+		global $config, $user, $template, $phpEx, $phpbb_root_path;
+		
+		$template->set_filenames(array(
+			'captcha' => 'captcha_default.html')
+		);
+		
+		$template->assign_vars(array(
+			'CONFIRM_IMAGE'				=> append_sid($phpbb_root_path . 'ucp.' . $phpEx . '?mode=confirm&amp;confirm_id=' . $this->confirm_id . '&amp;type=' . $this->type),
+			'CONFIRM_ID'				=> $this->confirm_id,			
+			'S_REFRESH'					=> (bool) $config['confirm_refresh'],
+
+		));
+	
+		return $template->assign_display('captcha');
+	}
+	
+	function get_demo_template($id)
+	{
+		global $config, $user, $template, $phpbb_admin_path, $phpEx;
+		
+		$template->set_filenames(array(
+			'captcha_demo' => 'captcha_default_acp_demo.html')
+		);
+		// acp_captcha has a delivery function; let's use it
+		$template->assign_vars(array(
+			'CONFIRM_IMAGE'		=> append_sid($phpbb_admin_path . 'index.' . $phpEx . '?captcha_demo=1&amp;mode=visual&amp;i=' . $id . '&amp;select_captcha=' . $this->get_class_name()),
+			'CONFIRM_ID'		=> $this->confirm_id,
+		));
+		
+		return $template->assign_display('captcha_demo');
+	}
+		
+	function get_hidden_fields()
+	{
+		$hidden_fields = array();
+		
+		// this is required for postig.php - otherwise we would forget about the captcha being already solved
+		if ($this->solved)
+		{
+			$hidden_fields['confirm_code'] = $this->confirm_code;
+		}
+		$hidden_fields['confirm_id'] = $this->confirm_id;
+		return $hidden_fields;
+	}
+	
+	function garbage_collect($type)
+	{
+		global $db, $config;
+
+		$sql = 'SELECT DISTINCT c.session_id
+				FROM ' . CONFIRM_TABLE . ' c
+				LEFT JOIN ' . SESSIONS_TABLE . ' s ON (c.session_id = s.session_id)
+				WHERE s.session_id IS NULL' .
+					((empty($type)) ? '' : ' AND c.confirm_type = ' . (int) $type);
+		$result = $db->sql_query($sql);
+
+		if ($row = $db->sql_fetchrow($result))
+		{
+			$sql_in = array();
+			do
+			{
+				$sql_in[] = (string) $row['session_id'];
+			}
+			while ($row = $db->sql_fetchrow($result));
+
+			if (sizeof($sql_in))
+			{
+				$sql = 'DELETE FROM ' . CONFIRM_TABLE . '
+					WHERE ' . $db->sql_in_set('session_id', $sql_in);
+				$db->sql_query($sql);
+			}
+		}
+		$db->sql_freeresult($result);
+	}
+	
+	function uninstall()
+	{
+		self::garbage_collect(0);
+	}
+	
+	function install()
+	{
+		return;
+	}
+	
+	function validate()
+	{
+		global $config, $db, $user;
+		
+		$this->confirm_code = request_var('confirm_code', '');
+		if (!$this->confirm_id)
+		{
+			$error = $user->lang['CONFIRM_CODE_WRONG'];
+		}
+		else
+		{
+			if ($this->check_code())
+			{
+				// $this->delete_code(); commented out to allow posting.php to repeat the question
+				$this->solved = true;
+			}
+			else
+			{
+				$error = $user->lang['CONFIRM_CODE_WRONG'];
+			}
+		}
+	
+		if (strlen($error))
+		{
+			// okay, inorect answer. Let's ask a new question
+			$this->generate_code();
+			return $error;
+		}
+		else
+		{
+			return false;
+		}
+	}
+	
+	
+	/**
+	* The old way to generate code, suitable for GD and non-GD. Resets the internal state.
+	*/
+	function generate_code()
+	{
+		global $db, $user;
+		
+		$this->code = gen_rand_string(mt_rand(5, 8));
+		$this->confirm_id = md5(unique_id($user->ip));
+		$this->seed = hexdec(substr(unique_id(), 4, 10));
+		$this->solved = false;
+		// compute $seed % 0x7fffffff
+		$this->seed -= 0x7fffffff * floor($this->seed / 0x7fffffff);
+
+		$sql = 'INSERT INTO ' . CONFIRM_TABLE . ' ' . $db->sql_build_array('INSERT', array(
+				'confirm_id'	=> (string) $this->confirm_id,
+				'session_id'	=> (string) $user->session_id,
+				'confirm_type'	=> (int) $this->type,
+				'code'			=> (string) $this->code,
+				'seed'			=> (int) $this->seed)
+		);
+		$db->sql_query($sql);
+	}
+	
+	/**
+	* New Question, if desired.
+	*/
+	function regenerate_code()
+	{
+		global $db, $user;
+		
+		$this->code = gen_rand_string(mt_rand(5, 8));
+		$this->seed = hexdec(substr(unique_id(), 4, 10));
+		$this->solved = false;
+		// compute $seed % 0x7fffffff
+		$this->seed -= 0x7fffffff * floor($this->seed / 0x7fffffff);
+		$sql = 'UPDATE ' . CONFIRM_TABLE . ' SET ' . $db->sql_build_array('UPDATE', array(
+				'code'			=> (string) $this->code,
+				'seed'			=> (int) $this->seed)) . '
+				WHERE
+				confirm_id = \'' . $db->sql_escape($this->confirm_id) . '\' AND
+				session_id = \'' . $db->sql_escape($user->session_id) . '\'';
+		$db->sql_query($sql);
+	}
+	
+	/**
+	* Look up everything we need for painting&checking. 
+	*/
+	function load_code()
+	{
+		global $db, $user;
+		$sql = 'SELECT code, seed
+				FROM ' . CONFIRM_TABLE . "
+				WHERE confirm_id = '" . $db->sql_escape($this->confirm_id) . "'
+				AND session_id = '" . $db->sql_escape($user->session_id) . "'
+					AND confirm_type = " . $this->type;
+		$result = $db->sql_query($sql);
+		$row = $db->sql_fetchrow($result);
+		$db->sql_freeresult($result);
+		if ($row)
+		{
+			$this->code = $row['code'];
+			$this->seed = $row['seed'];
+			return true;
+		}
+		return false;
+		
+	}
+	
+	function check_code()
+	{
+		global $db;
+		
+		if (empty($this->code))
+		{
+			if (!$this->load_code())
+			{
+				return false;
+			}
+		}
+		return (strcasecmp($this->code, $this->confirm_code) === 0);
+	}
+	
+	function delete_code()
+	{
+		global $db, $user;
+		
+		$sql = 'DELETE FROM ' . CONFIRM_TABLE . "
+				WHERE confirm_id = '" . $db->sql_escape($confirm_id) . "'
+					AND session_id = '" . $db->sql_escape($user->session_id) . "'
+					AND confirm_type = " . $this->type;
+		$db->sql_query($sql);
+	}
+	
+	function get_attempt_count()
+	{
+		global $db, $user;
+		
+		$sql = 'SELECT COUNT(session_id) AS attempts
+				FROM ' . CONFIRM_TABLE . "
+				WHERE session_id = '" . $db->sql_escape($user->session_id) . "'
+					AND confirm_type = " . $this->type;
+		$result = $db->sql_query($sql);
+		$attempts = (int) $db->sql_fetchfield('attempts');
+		$db->sql_freeresult($result);
+		
+		return $attempts;
+	}
+	
+	
+	function reset()
+	{
+		global $db, $user;
+		
+		$sql = 'DELETE FROM ' . CONFIRM_TABLE . "
+					WHERE session_id = '" . $db->sql_escape($user->session_id) . "'
+						AND confirm_type = " . (int) $this->type;
+		$db->sql_query($sql);
+		
+		// we leave the class usable by generating a new question
+		$this->generate_code();
+	}
+	
+}
+
diff --git a/phpBB/includes/captcha/plugins/phpbb_captcha_gd_plugin.php b/phpBB/includes/captcha/plugins/phpbb_captcha_gd_plugin.php
new file mode 100755
index 0000000000..850794e133
--- /dev/null
+++ b/phpBB/includes/captcha/plugins/phpbb_captcha_gd_plugin.php
@@ -0,0 +1,122 @@
+<?
+/**
+*
+* @package VC
+* @version $Id: $
+* @copyright (c) 2006 2008 phpBB Group
+* @license http://opensource.org/licenses/gpl-license.php GNU Public License
+*
+*/
+/**
+* @ignore
+*/
+if (!defined('IN_PHPBB'))
+{
+	exit;
+}
+
+/** 
+* Placeholder for autoload
+*/
+if (!class_exists('phpbb_default_captcha'))
+{
+	include_once($phpbb_root_path . "includes/captcha/plugins/captcha_abstract." . $phpEx);
+}
+
+class phpbb_captcha_gd extends phpbb_default_captcha
+{
+
+	function phpbb_captcha_gd()
+	{
+		global $phpbb_root_path, $phpEx;
+		if (!class_exists('captcha'))
+		{
+			include_once($phpbb_root_path . "includes/captcha/captcha_gd." . $phpEx);
+		}
+	}
+	
+	function get_instance()
+	{
+		return new phpbb_captcha_gd();
+	}
+
+	function is_available()
+	{
+		return (@extension_loaded('gd') || can_load_dll('gd'));
+	}
+	
+	function get_name()
+	{
+		return 'CAPTCHA_GD';
+	}
+	
+	function get_class_name()
+	{
+		return 'phpbb_captcha_gd';
+	}
+		
+	function acp_page($id, &$module)
+	{
+		global $db, $user, $auth, $template;
+		global $config, $phpbb_root_path, $phpbb_admin_path, $phpEx;
+
+		$user->add_lang('acp/board');
+		$captcha_vars = array(
+			'captcha_gd_x_grid'				=> 'CAPTCHA_GD_X_GRID',
+			'captcha_gd_y_grid'				=> 'CAPTCHA_GD_Y_GRID',
+			'captcha_gd_foreground_noise'	=> 'CAPTCHA_GD_FOREGROUND_NOISE',
+			'captcha_gd'					=> 'CAPTCHA_GD_PREVIEWED',
+			'captcha_gd_wave'				=> 'CAPTCHA_GD_WAVE',
+			'captcha_gd_3d_noise'			=> 'CAPTCHA_GD_3D_NOISE',
+			'captcha_gd_fonts'				=> 'CAPTCHA_GD_FONTS',
+
+		);
+
+		$config_vars = array(
+			'enable_confirm'		=> 'REG_ENABLE',
+			'enable_post_confirm'	=> 'POST_ENABLE',
+			'confirm_refresh'		=> 'CONFIRM_REFRESH',
+			'captcha_gd'			=> 'CAPTCHA_GD',
+		);
+
+
+		$module->tpl_name = 'captcha_gd_acp';
+		$module->page_title = 'ACP_VC_SETTINGS';
+		$form_key = 'acp_captcha';
+		add_form_key($form_key);
+
+		$submit = request_var('submit', '');
+
+		if ($submit && check_form_key($form_key))
+		{
+			$captcha_vars = array_keys($captcha_vars);
+			foreach ($captcha_vars as $captcha_var)
+			{
+				$value = request_var($captcha_var, 0);
+				if ($value >= 0)
+				{
+					set_config($captcha_var, $value);
+				}
+			}
+			trigger_error($user->lang['CONFIG_UPDATED'] . adm_back_link($module->u_action));
+		}
+		else if ($submit)
+		{
+			trigger_error($user->lang['FORM_INVALID'] . adm_back_link($module->u_action));
+		}
+		else
+		{
+			foreach ($captcha_vars as $captcha_var => $template_var)
+			{
+				$var = (isset($_REQUEST[$captcha_var])) ? request_var($captcha_var, 0) : $config[$captcha_var];
+				$template->assign_var($template_var, $var);
+			}
+			$template->assign_vars(array(
+				'CAPTCHA_PREVIEW'	=> $this->get_demo_template($id),
+				'CAPTCHA_NAME'		=> $this->get_class_name(),
+			));
+
+		}
+	}
+}
+
diff --git a/phpBB/includes/captcha/plugins/phpbb_captcha_gd_wave_plugin.php b/phpBB/includes/captcha/plugins/phpbb_captcha_gd_wave_plugin.php
new file mode 100755
index 0000000000..769867655c
--- /dev/null
+++ b/phpBB/includes/captcha/plugins/phpbb_captcha_gd_wave_plugin.php
@@ -0,0 +1,66 @@
+<?php
+/**
+*
+* @package VC
+* @version $Id$
+* @copyright (c) 2006 2008 phpBB Group
+* @license http://opensource.org/licenses/gpl-license.php GNU Public License
+*
+*/
+/**
+* @ignore
+*/
+if (!defined('IN_PHPBB'))
+{
+	exit;
+}
+
+/**
+* Placeholder for autoload
+*/
+if (!class_exists('captcha_abstract'))
+{
+	include_once($phpbb_root_path . 'includes/captcha/plugins/captcha_abstract.' . $phpEx);
+}
+
+class phpbb_captcha_gd_wave extends phpbb_default_captcha
+{
+
+	function phpbb_captcha_gd_wave()
+	{
+		global $phpbb_root_path, $phpEx;
+		if (!class_exists('captcha'))
+		{
+			include_once($phpbb_root_path . 'includes/captcha/captcha_gd_wave.' . $phpEx);
+		}
+	}
+
+	function get_instance()
+	{
+		return new phpbb_captcha_gd_wave();
+	}
+
+	function is_available()
+	{
+		return (@extension_loaded('gd') || can_load_dll('gd'));
+	}
+
+	function get_name()
+	{
+		return 'CAPTCHA_GD_WAVE';
+	}
+
+	function get_class_name()
+	{
+		return 'phpbb_captcha_gd_wave';
+	}
+
+	function acp_page($id, &$module)
+	{
+		global $config, $db, $template, $user;
+		
+		trigger_error($user->lang['CAPTCHA_NO_OPTIONS'] . adm_back_link($module->u_action));
+	}
+}
+
+?>
+\ No newline at end of file
diff --git a/phpBB/includes/captcha/plugins/phpbb_captcha_nogd_plugin.php b/phpBB/includes/captcha/plugins/phpbb_captcha_nogd_plugin.php
new file mode 100755
index 0000000000..c5a32137d7
--- /dev/null
+++ b/phpBB/includes/captcha/plugins/phpbb_captcha_nogd_plugin.php
@@ -0,0 +1,68 @@
+<?
+/**
+*
+* @package VC
+* @version $Id: $
+* @copyright (c) 2006 2008 phpBB Group
+* @license http://opensource.org/licenses/gpl-license.php GNU Public License
+*
+*/
+/**
+* @ignore
+*/
+if (!defined('IN_PHPBB'))
+{
+	exit;
+}
+
+/** 
+* Placeholder for autoload
+*/
+if (!class_exists('phpbb_default_captcha'))
+{
+	include_once($phpbb_root_path . "includes/captcha/plugins/captcha_abstract." . $phpEx);
+}
+
+class phpbb_captcha_nogd extends phpbb_default_captcha
+{
+
+	function phpbb_captcha_nogd()
+	{
+		global $phpbb_root_path, $phpEx;
+		if (!class_exists('captcha'))
+		{
+			include_once($phpbb_root_path . "includes/captcha/captcha_non_gd." . $phpEx);
+		}
+	}
+	
+	function get_instance()
+	{
+		return new phpbb_captcha_nogd();
+	}
+
+	function is_available()
+	{
+		return true;
+	}
+	
+	function get_name()
+	{
+		global $user;
+		
+		return 'CAPTCHA_NO_GD'; 
+	}
+	
+	function get_class_name()
+	{
+		return 'phpbb_captcha_nogd';
+	}
+	
+	
+	function acp_page($id, &$module)
+	{
+		global $user;
+		
+		trigger_error($user->lang['CAPTCHA_NO_OPTIONS'] . adm_back_link($module->u_action));
+	}
+}
+
diff --git a/phpBB/includes/captcha/plugins/phpbb_recaptcha_plugin.php b/phpBB/includes/captcha/plugins/phpbb_recaptcha_plugin.php
new file mode 100644
index 0000000000..7a3c406324
--- /dev/null
+++ b/phpBB/includes/captcha/plugins/phpbb_recaptcha_plugin.php
@@ -0,0 +1,312 @@
+<?
+/**
+*
+* @package VC
+* @version $Id: $
+* @copyright (c) 2006 2008 phpBB Group
+* @license http://opensource.org/licenses/gpl-license.php GNU Public License
+*
+*/
+
+/**
+* @ignore
+*/
+if (!defined('IN_PHPBB'))
+{
+	exit;
+}
+
+if (!class_exists('phpbb_default_captcha'))
+{
+	// we need the classic captcha code for tracking solutions and attempts
+	include_once($phpbb_root_path . "includes/captcha/plugins/captcha_abstract." . $phpEx);
+}
+
+class phpbb_recaptcha extends phpbb_default_captcha
+{
+	var $recaptcha_server = 'http://api.recaptcha.net';
+	var $recaptcha_verify_server = 'api-verify.recaptcha.net';
+	var $challenge;
+	var $response;
+
+	
+	function init($type)
+	{
+		global $config, $db, $user;
+		
+		$user->add_lang('recaptcha');
+		parent::init($type);
+		$this->challenge = request_var('recaptcha_challenge_field', '');
+		$this->response = request_var('recaptcha_response_field', '');
+	}
+	
+	
+	function get_instance()
+	{
+		return new phpbb_recaptcha();
+	}
+
+	function is_available()
+	{
+		global $config, $user; 
+		$user->add_lang('recaptcha');
+		return (isset($config['recaptcha_pubkey']) && !empty($config['recaptcha_pubkey']));
+	}
+	
+	function get_name()
+	{
+		return 'CAPTCHA_RECAPTCHA';
+	}
+	
+	function get_class_name()
+	{
+		return 'phpbb_recaptcha';
+	}
+		
+	function acp_page($id, &$module)
+	{
+		global $config, $db, $template, $user;
+		
+		$captcha_vars = array(
+			'recaptcha_pubkey'				=> 'RECAPTCHA_PUBKEY',
+			'recaptcha_privkey'				=> 'RECAPTCHA_PRIVKEY',
+		);
+
+		$module->tpl_name = 'captcha_recaptcha_acp';
+		$module->page_title = 'ACP_VC_SETTINGS';
+		$form_key = 'acp_captcha';
+		add_form_key($form_key);
+
+		$submit = request_var('submit', '');
+
+		if ($submit && check_form_key($form_key))
+		{
+			$captcha_vars = array_keys($captcha_vars);
+			foreach ($captcha_vars as $captcha_var)
+			{
+				$value = request_var($captcha_var, '');
+				if ($value)
+				{
+					set_config($captcha_var, $value);
+				}
+			}
+			trigger_error($user->lang['CONFIG_UPDATED'] . adm_back_link($module->u_action));
+		}
+		else if ($submit)
+		{
+			trigger_error($user->lang['FORM_INVALID'] . adm_back_link($module->u_action));
+		}
+		else
+		{
+			foreach ($captcha_vars as $captcha_var => $template_var)
+			{
+				$var = (isset($_REQUEST[$captcha_var])) ? request_var($captcha_var, '') : ((isset($config[$captcha_var])) ? $config[$captcha_var] : '');
+				$template->assign_var($template_var, $var);
+			}
+			$template->assign_vars(array(
+				'CAPTCHA_PREVIEW'	=> $this->get_demo_template($id),
+				'CAPTCHA_NAME'		=> $this->get_class_name(),
+			));
+
+		}
+	}
+	
+	
+	// not needed
+	function execute_demo()
+	{
+	}
+	
+	
+	// not needed
+	function execute()
+	{
+	}
+	
+	
+	function get_template()
+	{
+		global $config, $user, $template;
+		
+		$template->set_filenames(array(
+			'captcha' => 'captcha_recaptcha.html')
+		);
+		
+		$template->assign_vars(array(
+			'RECAPTCHA_SERVER'			=> $this->recaptcha_server,
+			'RECAPTCHA_PUBKEY'			=> isset($config['recaptcha_pubkey']) ? $config['recaptcha_pubkey'] : '',
+			'RECAPTCHA_ERRORGET'		=> '',
+			'S_RECAPTCHA_AVAILABLE'		=> $this->is_available(),
+		));
+	
+		return $template->assign_display('captcha');
+	}
+	
+	function get_demo_template($id)
+	{
+		return $this->get_template();
+	}
+		
+	function get_hidden_fields()
+	{
+		$hidden_fields = array();
+		
+		// this is required for postig.php - otherwise we would forget about the captcha being already solved
+		if ($this->solved)
+		{
+			$hidden_fields['confirm_code'] = $this->confirm_code;
+		}
+		$hidden_fields['confirm_id'] = $this->confirm_id;
+		return $hidden_fields;
+	}
+		
+	function uninstall()
+	{
+		self::garbage_collect(0);
+	}
+	
+	function install()
+	{
+		return;
+	}
+	
+	function validate()
+	{
+		if (!parent::validate())
+		{
+			return false;
+		}
+		else
+		{
+			return $this->recaptcha_check_answer();
+		}
+	}
+	
+
+// Code from here on is based on recaptchalib.php
+/*
+ * This is a PHP library that handles calling reCAPTCHA.
+ *	- Documentation and latest version
+ *		  http://recaptcha.net/plugins/php/
+ *	- Get a reCAPTCHA API Key
+ *		  http://recaptcha.net/api/getkey
+ *	- Discussion group
+ *		  http://groups.google.com/group/recaptcha
+ *
+ * Copyright (c) 2007 reCAPTCHA -- http://recaptcha.net
+ * AUTHORS:
+ *   Mike Crawford
+ *   Ben Maurer
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+	/**
+	 * Submits an HTTP POST to a reCAPTCHA server
+	 * @param string $host
+	 * @param string $path
+	 * @param array $data
+	 * @param int port
+	 * @return array response
+	 */
+	function _recaptcha_http_post($host, $path, $data, $port = 80) 
+	{
+		$req = $this->_recaptcha_qsencode ($data);
+
+		$http_request  = "POST $path HTTP/1.0\r\n";
+		$http_request .= "Host: $host\r\n";
+		$http_request .= "Content-Type: application/x-www-form-urlencoded;\r\n";
+		$http_request .= "Content-Length: " . strlen($req) . "\r\n";
+		$http_request .= "User-Agent: reCAPTCHA/PHP/phpBB\r\n";
+		$http_request .= "\r\n";
+		$http_request .= $req;
+
+		$response = '';
+		if( false == ( $fs = @fsockopen($host, $port, $errno, $errstr, 10) ) ) {
+				die ('Could not open socket');
+		}
+
+		fwrite($fs, $http_request);
+
+		while ( !feof($fs) )
+				$response .= fgets($fs, 1160); // One TCP-IP packet
+		fclose($fs);
+		$response = explode("\r\n\r\n", $response, 2);
+
+		return $response;
+	}
+
+
+	/**
+	  * Calls an HTTP POST function to verify if the user's guess was correct
+	  * @param array $extra_params an array of extra variables to post to the server
+	  * @return ReCaptchaResponse
+	  */
+	function recaptcha_check_answer ($extra_params = array())
+	{
+		global $config, $user;
+		//discard spam submissions
+		if ($this->challenge == null || strlen($this->challenge) == 0 || $this->response == null || strlen($this->response) == 0) 
+		{
+				return $user->lang['RECAPTCHA_INCORRECT'];
+		}
+
+		$response = $this->_recaptcha_http_post ($this->recaptcha_verify_server, "/verify",
+										  array (
+												 'privatekey'	=> $config['recaptcha_privkey'],
+												 'remoteip'		=> $user->ip,
+												 'challenge'	=> $this->challenge,
+												 'response'		=> $this->response
+												 ) + $extra_params
+										  );
+
+		$answers = explode ("\n", $response[1]);
+		
+		if (trim ($answers[0]) === 'true') 
+		{
+			$this->solved = true;
+			return false;
+		}
+		else 
+		{
+			if ($answers[1] === 'incorrect-captcha-sol')
+			{
+				return $user->lang['RECAPTCHA_INCORRECT'];
+			}
+		}
+	}
+	
+		/**
+	 * Encodes the given data into a query string format
+	 * @param $data - array of string elements to be encoded
+	 * @return string - encoded request
+	 */
+	function _recaptcha_qsencode ($data)
+	{
+		$req = '';
+		foreach ( $data as $key => $value )
+		{
+			$req .= $key . '=' . urlencode( stripslashes($value) ) . '&';
+		}
+		// Cut the last '&'
+		$req=substr($req,0,strlen($req)-1);
+		return $req;
+	}
+}
+
diff --git a/phpBB/includes/functions.php b/phpBB/includes/functions.php
index 476565452c..58601be65b 100644
--- a/phpBB/includes/functions.php
+++ b/phpBB/includes/functions.php
@@ -2520,6 +2520,11 @@ function login_box($redirect = '', $l_explain = '', $l_success = '', $admin = fa
 {
 	global $db, $user, $template, $auth, $phpEx, $phpbb_root_path, $config;
 
+	if (!class_exists('phpbb_captcha_factory'))
+	{
+		include($phpbb_root_path . 'includes/captcha/captcha_factory.' . $phpEx);
+	}
+	
 	$err = '';
 
 	// Make sure user->setup() has been called
@@ -2630,34 +2635,14 @@ function login_box($redirect = '', $l_explain = '', $l_success = '', $admin = fa
 		{
 			case LOGIN_ERROR_ATTEMPTS:
 
-				// Show confirm image
-				$sql = 'DELETE FROM ' . CONFIRM_TABLE . "
-					WHERE session_id = '" . $db->sql_escape($user->session_id) . "'
-						AND confirm_type = " . CONFIRM_LOGIN;
-				$db->sql_query($sql);
-
-				// Generate code
-				$code = gen_rand_string(mt_rand(CAPTCHA_MIN_CHARS, CAPTCHA_MAX_CHARS));
-				$confirm_id = md5(unique_id($user->ip));
-				$seed = hexdec(substr(unique_id(), 4, 10));
+				$captcha = phpbb_captcha_factory::get_instance($config['captcha_plugin']);
+				$captcha->init(CONFIRM_LOGIN);
+				$captcha->reset();
 
-				// compute $seed % 0x7fffffff
-				$seed -= 0x7fffffff * floor($seed / 0x7fffffff);
-
-				$sql = 'INSERT INTO ' . CONFIRM_TABLE . ' ' . $db->sql_build_array('INSERT', array(
-					'confirm_id'	=> (string) $confirm_id,
-					'session_id'	=> (string) $user->session_id,
-					'confirm_type'	=> (int) CONFIRM_LOGIN,
-					'code'			=> (string) $code,
-					'seed'			=> (int) $seed)
-				);
-				$db->sql_query($sql);
 
 				$template->assign_vars(array(
 					'S_CONFIRM_CODE'			=> true,
-					'CONFIRM_ID'				=> $confirm_id,
-					'CONFIRM_IMAGE'				=> '<img src="' . append_sid("{$phpbb_root_path}ucp.$phpEx", 'mode=confirm&amp;id=' . $confirm_id . '&amp;type=' . CONFIRM_LOGIN) . '" alt="" title="" />',
-					'L_LOGIN_CONFIRM_EXPLAIN'	=> sprintf($user->lang['LOGIN_CONFIRM_EXPLAIN'], '<a href="mailto:' . htmlspecialchars($config['board_contact']) . '">', '</a>'),
+					'CONFIRM'					=> $captcha->get_template(''),
 				));
 
 				$err = $user->lang[$result['error_msg']];
diff --git a/phpBB/includes/session.php b/phpBB/includes/session.php
index 043a637584..e039fce6e1 100644
--- a/phpBB/includes/session.php
+++ b/phpBB/includes/session.php
@@ -891,7 +891,7 @@ class session
 	*/
 	function session_gc()
 	{
-		global $db, $config;
+		global $db, $config, $phpbb_root_path, $phpEx;
 
 		$batch_size = 10;
 
@@ -949,40 +949,16 @@ class session
 					WHERE last_login < ' . (time() - (86400 * (int) $config['max_autologin_time']));
 				$db->sql_query($sql);
 			}
-			$this->confirm_gc();
-		}
-
-		return;
-	}
-
-	function confirm_gc($type = 0)
-	{
-		global $db, $config;
-
-		$sql = 'SELECT DISTINCT c.session_id
-				FROM ' . CONFIRM_TABLE . ' c
-				LEFT JOIN ' . SESSIONS_TABLE . ' s ON (c.session_id = s.session_id)
-				WHERE s.session_id IS NULL' .
-					((empty($type)) ? '' : ' AND c.confirm_type = ' . (int) $type);
-		$result = $db->sql_query($sql);
-
-		if ($row = $db->sql_fetchrow($result))
-		{
-			$sql_in = array();
-			do
-			{
-				$sql_in[] = (string) $row['session_id'];
-			}
-			while ($row = $db->sql_fetchrow($result));
-
-			if (sizeof($sql_in))
+			
+			// only called from CRON; should be a safe workaround until the infrastructure gets going
+			if (!class_exists('captcha_factory'))
 			{
-				$sql = 'DELETE FROM ' . CONFIRM_TABLE . '
-					WHERE ' . $db->sql_in_set('session_id', $sql_in);
-				$db->sql_query($sql);
+				include($phpbb_root_path . "includes/captcha/captcha_factory." . $phpEx);
 			}
+			captcha_factory::garbage_collect($config['captcha_plugin']);
 		}
-		$db->sql_freeresult($result);
+
+		return;
 	}
 
 
diff --git a/phpBB/includes/ucp/ucp_confirm.php b/phpBB/includes/ucp/ucp_confirm.php
index b91c88b7e8..445f7c7d2a 100644
--- a/phpBB/includes/ucp/ucp_confirm.php
+++ b/phpBB/includes/ucp/ucp_confirm.php
@@ -3,7 +3,7 @@
 *
 * @package VC
 * @version $Id$
-* @copyright (c) 2005 phpBB Group
+* @copyright (c) 2005 2008 phpBB Group
 * @license http://opensource.org/licenses/gpl-license.php GNU Public License
 *
 */
@@ -37,42 +37,10 @@ class ucp_confirm
 	{
 		global $db, $user, $phpbb_root_path, $config, $phpEx;
 
-		// Do we have an id? No, then just exit
-		$confirm_id = request_var('id', '');
-		$type = request_var('type', 0);
-
-		if (!$confirm_id || !$type)
-		{
-			exit;
-		}
-
-		// Try and grab code for this id and session
-		$sql = 'SELECT code, seed
-			FROM ' . CONFIRM_TABLE . "
-			WHERE session_id = '" . $db->sql_escape($user->session_id) . "'
-				AND confirm_id = '" . $db->sql_escape($confirm_id) . "'
-				AND confirm_type = $type";
-		$result = $db->sql_query($sql);
-		$row = $db->sql_fetchrow($result);
-		$db->sql_freeresult($result);
-
-		// If we have a row then grab data else create a new id
-		if (!$row)
-		{
-			exit;
-		}
-
-		if ($config['captcha_gd'])
-		{
-			include($phpbb_root_path . 'includes/captcha/captcha_gd.' . $phpEx);
-		}
-		else
-		{
-			include($phpbb_root_path . 'includes/captcha/captcha_non_gd.' . $phpEx);
-		}
-
-		$captcha = new captcha();
-		$captcha->execute($row['code'], $row['seed']);
+		include($phpbb_root_path . 'includes/captcha/captcha_factory.' . $phpEx);
+		$captcha = phpbb_captcha_factory::get_instance($config['captcha_plugin']);
+		$captcha->init(request_var('type', 0));
+		$captcha->execute();
 
 		garbage_collection();
 		exit_handler();
diff --git a/phpBB/includes/ucp/ucp_register.php b/phpBB/includes/ucp/ucp_register.php
index e42ad8369d..958369a03e 100644
--- a/phpBB/includes/ucp/ucp_register.php
+++ b/phpBB/includes/ucp/ucp_register.php
@@ -37,14 +37,12 @@ class ucp_register
 
 		include($phpbb_root_path . 'includes/functions_profile_fields.' . $phpEx);
 
-		$confirm_id			= request_var('confirm_id', '');
-		$confirm_refresh	= (isset($_POST['confirm_refresh']) && $config['confirm_refresh']) ? ((!empty($_POST['confirm_refresh'])) ? 1 : 0) : false;
-		$coppa				= (isset($_REQUEST['coppa'])) ? ((!empty($_REQUEST['coppa'])) ? 1 : 0) : false;
-		$agreed				= (!empty($_POST['agreed'])) ? 1 : 0;
-		$submit				= (isset($_POST['submit'])) ? true : false;
-		$change_lang		= request_var('change_lang', '');
-		$user_lang			= request_var('lang', $user->lang_name);
-
+		$coppa			= (isset($_REQUEST['coppa'])) ? ((!empty($_REQUEST['coppa'])) ? 1 : 0) : false;
+		$agreed			= (!empty($_POST['agreed'])) ? 1 : 0;
+		$submit			= (isset($_POST['submit'])) ? true : false;
+		$change_lang	= request_var('change_lang', '');
+		$user_lang		= request_var('lang', $user->lang_name);
+		$confirm_refresh        = (isset($_POST['confirm_refresh']) && $config['confirm_refresh']) ? ((!empty($_POST['confirm_refresh'])) ? 1 : 0) : false;
 		if ($agreed)
 		{
 			add_form_key('ucp_register');
@@ -54,7 +52,14 @@ class ucp_register
 			add_form_key('ucp_register_terms');
 		}
 
-
+		
+		if ($config['enable_confirm'])
+		{
+			include($phpbb_root_path . 'includes/captcha/captcha_factory.' . $phpEx);
+			$captcha = phpbb_captcha_factory::get_instance($config['captcha_plugin']);
+			$captcha->init(CONFIRM_REG);
+		}
+			
 		if ($change_lang || $user_lang != $config['default_lang'])
 		{
 			$use_lang = ($change_lang) ? basename($change_lang) : basename($user_lang);
@@ -89,8 +94,8 @@ class ucp_register
 		{
 			$add_lang = ($change_lang) ? '&amp;change_lang=' . urlencode($change_lang) : '';
 			$add_coppa = ($coppa !== false) ? '&amp;coppa=' . $coppa : '';
-
-			$s_hidden_fields = ($confirm_id) ? array('confirm_id' => $confirm_id) : array();
+			
+			$s_hidden_fields = array();
 
 			// If we change the language, we want to pass on some more possible parameter.
 			if ($change_lang)
@@ -100,11 +105,14 @@ class ucp_register
 					'username'			=> utf8_normalize_nfc(request_var('username', '', true)),
 					'email'				=> strtolower(request_var('email', '')),
 					'email_confirm'		=> strtolower(request_var('email_confirm', '')),
-					'confirm_code'		=> request_var('confirm_code', ''),
-					'confirm_id'		=> request_var('confirm_id', ''),
 					'lang'				=> $user->lang_name,
 					'tz'				=> request_var('tz', (float) $config['board_timezone']),
 				));
+				
+				if ($config['enable_confirm'])
+				{
+					$s_hidden_fields = array_merge($s_hidden_fields, $captcha->get_hidden_fields());
+				}
 			}
 
 			if ($coppa === false && $config['coppa_enable'])
@@ -168,7 +176,6 @@ class ucp_register
 			'password_confirm'	=> request_var('password_confirm', '', true),
 			'email'				=> strtolower(request_var('email', '')),
 			'email_confirm'		=> strtolower(request_var('email_confirm', '')),
-			'confirm_code'		=> request_var('confirm_code', ''),
 			'lang'				=> basename(request_var('lang', $user->lang_name)),
 			'tz'				=> request_var('tz', (float) $timezone),
 		);
@@ -188,7 +195,6 @@ class ucp_register
 					array('string', false, 6, 60),
 					array('email')),
 				'email_confirm'		=> array('string', false, 6, 60),
-				'confirm_code'		=> array('string', !$config['enable_confirm'], CAPTCHA_MIN_CHARS, CAPTCHA_MAX_CHARS),
 				'tz'				=> array('num', false, -14, 14),
 				'lang'				=> array('match', false, '#^[a-z_\-]{2,}$#i'),
 			));
@@ -199,6 +205,22 @@ class ucp_register
 			// Replace "error" strings with their real, localised form
 			$error = preg_replace('#^([A-Z_]+)$#e', "(!empty(\$user->lang['\\1'])) ? \$user->lang['\\1'] : '\\1'", $error);
 
+			if ($config['enable_confirm'])
+			{
+				$vc_response = $captcha->validate();
+				if ($vc_response)
+				{
+					$error[] = $vc_response;
+				}
+				else
+				{
+					$captcha->reset();
+				}
+				if ($config['max_reg_attempts'] && $captcha->get_attempt_count() > $config['max_reg_attempts'])
+				{
+					$error[] = $user->lang['TOO_MANY_REGISTERS'];
+				}
+			}
 			// DNSBL check
 			if ($config['check_dnsbl'])
 			{
@@ -211,50 +233,6 @@ class ucp_register
 			// validate custom profile fields
 			$cp->submit_cp_field('register', $user->get_iso_lang_id(), $cp_data, $error);
 
-			// Visual Confirmation handling
-			$wrong_confirm = false;
-			if ($config['enable_confirm'])
-			{
-				if (!$confirm_id)
-				{
-					$error[] = $user->lang['CONFIRM_CODE_WRONG'];
-					$wrong_confirm = true;
-				}
-				else
-				{
-					$sql = 'SELECT code
-						FROM ' . CONFIRM_TABLE . "
-						WHERE confirm_id = '" . $db->sql_escape($confirm_id) . "'
-							AND session_id = '" . $db->sql_escape($user->session_id) . "'
-							AND confirm_type = " . CONFIRM_REG;
-					$result = $db->sql_query($sql);
-					$row = $db->sql_fetchrow($result);
-					$db->sql_freeresult($result);
-
-					if ($row)
-					{
-						if (strcasecmp($row['code'], $data['confirm_code']) === 0)
-						{
-							$sql = 'DELETE FROM ' . CONFIRM_TABLE . "
-								WHERE confirm_id = '" . $db->sql_escape($confirm_id) . "'
-									AND session_id = '" . $db->sql_escape($user->session_id) . "'
-									AND confirm_type = " . CONFIRM_REG;
-							$db->sql_query($sql);
-						}
-						else
-						{
-							$error[] = $user->lang['CONFIRM_CODE_WRONG'];
-							$wrong_confirm = true;
-						}
-					}
-					else
-					{
-						$error[] = $user->lang['CONFIRM_CODE_WRONG'];
-						$wrong_confirm = true;
-					}
-				}
-			}
-
 			if (!sizeof($error))
 			{
 				if ($data['new_password'] != $data['password_confirm'])
@@ -452,74 +430,17 @@ class ucp_register
 			if ($change_lang || $confirm_refresh)
 			{
 				$str = '&amp;change_lang=' . $change_lang;
-				$sql = 'SELECT code
-						FROM ' . CONFIRM_TABLE . "
-						WHERE confirm_id = '" . $db->sql_escape($confirm_id) . "'
-							AND session_id = '" . $db->sql_escape($user->session_id) . "'
-							AND confirm_type = " . CONFIRM_REG;
-				$result = $db->sql_query($sql);
-				if (!$row = $db->sql_fetchrow($result))
-				{
-					$confirm_id = '';
-				}
-				$db->sql_freeresult($result);
 			}
 			else
 			{
 				$str = '';
-			}
-			if (!$change_lang || !$confirm_id || !$confirm_refresh)
-			{
-				$user->confirm_gc(CONFIRM_REG);
 
-				$sql = 'SELECT COUNT(session_id) AS attempts
-					FROM ' . CONFIRM_TABLE . "
-					WHERE session_id = '" . $db->sql_escape($user->session_id) . "'
-						AND confirm_type = " . CONFIRM_REG;
-				$result = $db->sql_query($sql);
-				$attempts = (int) $db->sql_fetchfield('attempts');
-				$db->sql_freeresult($result);
-
-				if ($config['max_reg_attempts'] && $attempts > $config['max_reg_attempts'])
-				{
-					trigger_error('TOO_MANY_REGISTERS');
-				}
-
-				$code = gen_rand_string(mt_rand(CAPTCHA_MIN_CHARS, CAPTCHA_MAX_CHARS));
-				$confirm_id = md5(unique_id($user->ip));
-				$seed = hexdec(substr(unique_id(), 4, 10));
-
-				// compute $seed % 0x7fffffff
-				$seed -= 0x7fffffff * floor($seed / 0x7fffffff);
-
-				$sql = 'INSERT INTO ' . CONFIRM_TABLE . ' ' . $db->sql_build_array('INSERT', array(
-					'confirm_id'	=> (string) $confirm_id,
-					'session_id'	=> (string) $user->session_id,
-					'confirm_type'	=> (int) CONFIRM_REG,
-					'code'			=> (string) $code,
-					'seed'			=> (int) $seed)
-				);
-				$db->sql_query($sql);
-			}
-			else if ($confirm_refresh)
-			{
-				$code = gen_rand_string(mt_rand(CAPTCHA_MIN_CHARS, CAPTCHA_MAX_CHARS));
-				$confirm_id = md5(unique_id($user->ip));
-				$seed = hexdec(substr(unique_id(), 4, 10));
-					// compute $seed % 0x7fffffff
-				$seed -= 0x7fffffff * floor($seed / 0x7fffffff);
-				$sql = 'UPDATE ' . CONFIRM_TABLE . ' SET ' . $db->sql_build_array('UPDATE', array(
-					'confirm_type'	=> (int) CONFIRM_REG,
-					'code'			=> (string) $code,
-					'seed'			=> (int) $seed)) . "
-					WHERE
-					confirm_id = '" . $db->sql_escape($confirm_id) . "' AND
-					session_id = '" . $db->sql_escape($session_id) . "' AND
-					confirm_type = " . (int) CONFIRM_REG;
-				$db->sql_query($sql);
 			}
-			$confirm_image = '<img src="' . append_sid("{$phpbb_root_path}ucp.$phpEx", 'mode=confirm&amp;id=' . $confirm_id . '&amp;type=' . CONFIRM_REG . $str) . '" alt="" title="" />';
-			$s_hidden_fields .= '<input type="hidden" name="confirm_id" value="' . $confirm_id . '" />';
+			$template->assign_vars(array(
+				'L_CONFIRM_EXPLAIN'		=> sprintf($user->lang['CONFIRM_EXPLAIN'], '<a href="mailto:' . htmlspecialchars($config['board_contact']) . '">', '</a>'),
+				'S_CAPTCHA'				=> $captcha->get_template(),
+			));
+
 		}
 
 		//
@@ -534,7 +455,7 @@ class ucp_register
 				$l_reg_cond = $user->lang['UCP_ADMIN_ACTIVATE'];
 			break;
 		}
-
+		
 		$template->assign_vars(array(
 			'ERROR'				=> (sizeof($error)) ? implode('<br />', $error) : '',
 			'USERNAME'			=> $data['username'],
@@ -542,16 +463,13 @@ class ucp_register
 			'PASSWORD_CONFIRM'	=> $data['password_confirm'],
 			'EMAIL'				=> $data['email'],
 			'EMAIL_CONFIRM'		=> $data['email_confirm'],
-			'CONFIRM_IMG'		=> $confirm_image,
 
-			'L_CONFIRM_EXPLAIN'			=> sprintf($user->lang['CONFIRM_EXPLAIN'], '<a href="mailto:' . htmlspecialchars($config['board_contact']) . '">', '</a>'),
 			'L_REG_COND'				=> $l_reg_cond,
 			'L_USERNAME_EXPLAIN'		=> sprintf($user->lang[$config['allow_name_chars'] . '_EXPLAIN'], $config['min_name_chars'], $config['max_name_chars']),
 			'L_PASSWORD_EXPLAIN'		=> sprintf($user->lang[$config['pass_complex'] . '_EXPLAIN'], $config['min_pass_chars'], $config['max_pass_chars']),
 
 			'S_LANG_OPTIONS'	=> language_select($data['lang']),
 			'S_TZ_OPTIONS'		=> tz_select($data['tz']),
-			'S_CONFIRM_CODE'	=> ($config['enable_confirm']) ? true : false,
 			'S_CONFIRM_REFRESH'	=> ($config['enable_confirm'] && $config['confirm_refresh']) ? true : false,
 			'S_COPPA'			=> $coppa,
 			'S_HIDDEN_FIELDS'	=> $s_hidden_fields,