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mirror of https://github.com/phpbb/phpbb.git synced 2025-05-05 15:16:16 +02:00

- We are now at _seven_ different policies, not counting the non-GD version. We must remove something...

- Made the CAPTCHA system idiot proof, disabling all the policies still lets an image get created.
- We handle the case of a user having GD but no TTF. Thankfully, we have CAPTCHAs that don't need TTF!
- Fixed that stupid language string...
- Renamed Occlude to Overlap
- Shape is now only enabled if TTF support is detected


git-svn-id: file:///svn/phpbb/trunk@5985 89ea8834-ac86-4346-8a33-228a782c2dd0
This commit is contained in:
David M 2006-05-30 04:27:14 +00:00
parent 5465ceb507
commit 74799e168d
7 changed files with 578 additions and 194 deletions

View File

@ -219,9 +219,9 @@ class acp_board
'enable_post_confirm' => array('lang' => 'VISUAL_CONFIRM_POST', 'type' => 'radio:yes_no', 'explain' => true),
'legend2' => 'CAPTCHA_OPTIONS',
'policy_occlude' => array('lang' => 'CAPTCHA_OCCLUDE', 'type' => 'radio:yes_no', 'explain' => false),
'policy_occlude_noise_pixel' => array('lang' => 'OCCLUDE_NOISE_PIXEL', 'type' => 'select', 'method' => 'captcha_pixel_noise_select', 'explain' => false),
'policy_occlude_noise_line' => array('lang' => 'OCCLUDE_NOISE_LINE', 'type' => 'radio:yes_no', 'explain' => false),
'policy_overlap' => array('lang' => 'CAPTCHA_OVERLAP', 'type' => 'radio:yes_no', 'explain' => false),
'policy_overlap_noise_pixel' => array('lang' => 'OVERLAP_NOISE_PIXEL', 'type' => 'select', 'method' => 'captcha_pixel_noise_select', 'explain' => false),
'policy_overlap_noise_line' => array('lang' => 'OVERLAP_NOISE_LINE', 'type' => 'radio:yes_no', 'explain' => false),
'policy_entropy' => array('lang' => 'CAPTCHA_ENTROPY', 'type' => 'radio:yes_no', 'explain' => false),
'policy_entropy_noise_pixel' => array('lang' => 'ENTROPY_NOISE_PIXEL', 'type' => 'select', 'method' => 'captcha_pixel_noise_select', 'explain' => false),
'policy_entropy_noise_line' => array('lang' => 'ENTROPY_NOISE_LINE', 'type' => 'radio:yes_no', 'explain' => false),
@ -229,6 +229,9 @@ class acp_board
'policy_shape_noise_pixel' => array('lang' => 'SHAPE_NOISE_PIXEL', 'type' => 'select', 'method' => 'captcha_pixel_noise_select', 'explain' => false),
'policy_shape_noise_line' => array('lang' => 'SHAPE_NOISE_LINE', 'type' => 'radio:yes_no', 'explain' => false),
'policy_3dbitmap' => array('lang' => 'CAPTCHA_3DBITMAP', 'type' => 'radio:yes_no', 'explain' => false),
'policy_cells' => array('lang' => 'CAPTCHA_CELLS', 'type' => 'radio:yes_no', 'explain' => false),
'policy_stencil' => array('lang' => 'CAPTCHA_STENCIL', 'type' => 'radio:yes_no', 'explain' => false),
'policy_composite' => array('lang' => 'CAPTCHA_COMPOSITE', 'type' => 'radio:yes_no', 'explain' => false),
)
);
break;

View File

@ -21,30 +21,15 @@ class captcha
/**
* Create the image containing $code
*/
function execute($code)
function execute($code, $policy)
{
global $config;
$policy_modules = array('policy_entropy', 'policy_occlude', 'policy_3dbitmap', 'policy_shape');
// Remove all disabled policy modules
foreach ($policy_modules as $key => $name)
{
if ($config[$name] === '0')
{
unset($policy_modules[$key]);
}
}
$policy = $policy_modules[array_rand($policy_modules)];
$this->$policy(str_split($code));
}
/**
* Send image and destroy
*/
function send_image(&$image, $array=array())
function send_image(&$image)
{
header('Content-Type: image/png');
header('Cache-control: no-cache, no-store');
@ -173,12 +158,11 @@ class captcha
if (!$chars)
{
$chars = array_merge(range('A', 'Z'), range('1', '9'));
$charcount = sizeof($chars) - 1;
}
$word = '';
for ($i = mt_rand(6, 8); $i > 0; --$i)
{
$word .= $chars[mt_rand(0, $charcount)];
$word .= $chars[array_rand($chars)];
}
return $word;
}
@ -188,7 +172,7 @@ class captcha
*/
function policy_shape($code)
{
global $config;
global $config, $user;
// Generate image
$img_x = 800;
$img_y = 250;
@ -207,10 +191,6 @@ class captcha
}
// Generate code characters
$characters = array();
$sizes = array();
$bounding_boxes = array();
$width_avail = $img_x;
$code_num = sizeof($code);
// Add some line noise
@ -227,6 +207,7 @@ class captcha
}
$char_class = $this->captcha_char('char_ttf');
for ($i = 0; $i < 4; ++$i)
{
if ($i)
@ -254,8 +235,6 @@ class captcha
}
}
}
global $user;
imagestring($img, 6, 250, 50, $user->lang['CAPTCHA_LINE_1'], $fontcolors[0]);
imagestring($img, 6, 250, 100, $user->lang['CAPTCHA_LINE_2'], $fontcolors[0]);
imagestring($img, 6, 250, 150, $user->lang['CAPTCHA_LINE_3'], $fontcolors[0]);
@ -272,6 +251,367 @@ class captcha
$this->send_image($img);
}
function policy_composite($code)
{
// Generate image
$img_x = 800;
$img_y = 250;
$img = imagecreate($img_x, $img_y);
$map = captcha_vectors();
$fonts = captcha_load_ttf_fonts();
// Generate basic colors
$background = imagecolorallocate($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));
// Specificy image portion dimensions.
$count = sizeof($code);
$cellsize = $img_x / $count;
$y_range = min($cellsize, $img_y);
$y_max = $img_y - $y_range;
$y_off = array(); // consecutive vertical offset of characters
$y_off[0] = mt_rand(0, $y_max);
for ($i = 1; $i < $count; ++$i)
{
// each consective character can be as much as 50% closer to the top or bottom of the image as the previous
$diff = mt_rand(-50, 50);
if ($diff > 0)
{
$y_off[$i] = $y_off[$i - 1] + ((($y_max - $y_off[$i - 1]) * $diff) / 100);
}
else
{
$y_off[$i] = $y_off[$i - 1] * ((100 + $diff) / 100);
}
}
$range = 0.1;
$chars = array_merge(range('A', 'Z'), range('0', '9'));
// draw some characters. if they're within the vector spec of the code character, color them differently
for ($i = 0; $i < 5000; ++$i)
{
$degree = mt_rand(-30, 30);
$x = mt_rand(0, $img_x - 1);
$y = mt_rand(0, $img_y);
$c = $chars[array_rand($chars)];
$char = $x / $cellsize;
$meta_x = ((($x % $cellsize) / $cellsize) * 1.5) - 0.25;
$meta_y = (($img_y - $y) - $y_off[$char]) / $y_range;
$font = $fonts[array_rand($fonts)];
// distance check
$distance = 2;
$show = false;
foreach ($map[$code[$char]] AS $vector)
{
switch ($vector[0])
{
case 'line':
$c_theta = cos($vector[5]);
$s_theta = sin($vector[5]);
$bx = $meta_x - $vector[1];
$by = $meta_y - $vector[2];
$r = ($by * $c_theta) - ($bx * $s_theta);
if ($r < $range && $r > -$range)
{
if (abs($c_theta) > abs($s_theta))
{
$s = (($bx + ($s_theta * $r)) / $c_theta);
}
else
{
$s = (($by + ($c_theta * $r)) / $s_theta);
}
if ($s > -$range)
{
if ($s < 0)
{
$distance = min($distance, sqrt(pow($s, 2) + pow($r, 2)));
}
elseif ($s < $vector[6])
{
$distance = min($distance, $r);
}
elseif ($s < $vector[6] + $range)
{
$distance = min($distance, sqrt(pow($s - $vector[6], 2) + pow($r, 2)));
}
}
}
break;
case 'arc':
$dx = $meta_x - $vector[1];
$dy = -($meta_y - $vector[2]); // because our arcs are upside-down
if ( abs($dx) > abs($dy) )
{
$phi = rad2deg(atan(($dy * $vector[3]) / ($dx * $vector[4])));
$phi += ($dx < 0) ? 180 : 360;
$phi %= 360;
}
else
{
$phi = 90 - rad2deg(atan(($dx * $vector[4]) / ($dy * $vector[3])));
$phi += ($dy < 0) ? 180 : 360;
$phi %= 360;
}
$internal = $vector[6] > $vector[5]; // external wraps over the 360 point
$low = $phi >= $vector[5]; // phi is above our low range
$high = $phi <= $vector[6]; // phi is below our high range.
if ($internal ? ($low && $high) : ($low || $high)) // if it wraps, it can only be one or the other
{
$radphi = deg2rad($phi);
$px = cos($radphi) * 0.5 * $vector[3];
$py = sin($radphi) * 0.5 * $vector[4];
$distance = min($distance, sqrt(pow($px - $dx, 2) + pow($py - $dy, 2)));
}
break;
}
}
if ($distance <= $range)
{
imagettftext($img, 10, $degree, $x, $y, $black, $font, $c);
}
else
{
imagettftext($img, 10, $degree, $x, $y, $random[$char], $font, $c);
}
}
// Send image
$this->send_image($img);
}
function policy_stencil($code)
{
// Generate image
$img_x = 800;
$img_y = 250;
$img = imagecreate($img_x, $img_y);
$stencil = imagecreate($img_x, $img_y);
$map = captcha_vectors();
$fonts = captcha_load_ttf_fonts();
// Generate colors
$white1 = imagecolorallocate($img, 255, 255, 255);
$black2 = imagecolorallocate($stencil, 0, 0, 0);
$black1 = imagecolorallocate($img, 0, 0, 0);
$white2 = imagecolorallocate($stencil, 255, 255, 255);
$channel = mt_rand(0,2);
$c1 = (!($channel % 3)) ? 255 : 0;
$c2 = (!(($channel + 1) % 3)) ? 255 : 0;
$c3 = (!(($channel + 2) % 3)) ? 255 : 0;
$primary = imagecolorallocate($img, $c1, $c2, $c3);
$second = imagecolorallocate($img, $c2, $c3, $c1);
$third = imagecolorallocate($img, $c3, $c1, $c2);
imagefill($stencil, 0, 0, $black2);
imagefill($img, 0, 0, $white1);
$chars = array_merge(range('A', 'Z'), range('1', '9'));
for ($i = 0; $i < 1000; ++$i)
{
$degree = mt_rand(-30, 30);
$x = mt_rand(0, $img_x - 1);
$y = mt_rand(0, $img_y);
$c = $chars[array_rand($chars)];
$font = $fonts[array_rand($fonts)];
imagettftext($stencil, mt_rand(20, 30), $degree, $x, $y, $white2, $font, $c);
}
for ($i = 0; $i < 3; ++$i)
{
$degree1 = mt_rand(-30, 30);
$degree2 = mt_rand(-30, 30);
$x1 = mt_rand(0, $img_x - 1);
$x2 = mt_rand(0, $img_x - 1);
$y1 = mt_rand(0, $img_y);
$y2 = mt_rand(0, $img_y);
$c1 = $chars[array_rand($chars)];
$c2 = $chars[array_rand($chars)];
$font1 = $fonts[array_rand($fonts)];
$font2 = $fonts[array_rand($fonts)];
imagettftext($img, 150, $degree1, $x1, $y1, $second, $font1, $c1);
imagettftext($img, 150, $degree2, $x2, $y2, $third, $font2, $c2);
}
$text = implode('', $code);
$font = $fonts[array_rand($fonts)];
imagettftext($img, 150, mt_rand(-5, 5), mt_rand(0, $img_x / 4), mt_rand(150, $img_y), $primary, $font, $text);
for ($i = 0; $i < $img_x; ++$i)
{
for ($j = 0; $j < $img_y; ++$j)
{
// if the stencil is black, set the pixel in the image black
if (!imagecolorat($stencil, $i, $j))
{
imagesetpixel($img, $i, $j, $black1);
}
}
}
// Send image
$this->send_image($img);
}
function policy_cells($code)
{
// Generate image
$img_x = 800;
$img_y = 250;
$img = imagecreate($img_x, $img_y);
$fonts = captcha_load_ttf_fonts();
$map = captcha_vectors();
//
// Generate colors
//
$white = imagecolorallocate($img, 255, 255, 255);
$black = imagecolorallocate($img, 0, 0, 0);
$colors = array(
imagecolorallocate($img, 128, 0, 0),
imagecolorallocate($img, 0, 128, 0),
imagecolorallocate($img, 0, 0, 128),
imagecolorallocate($img, 90, 90, 90)
);
$red = mt_rand(0,3);
imagefill($img, 10, 10, $white);
$offset1 = 50;
$offset2 = 550;
// draw the cell grid
for ($i = 0; $i < 4; ++$i)
{
imageline($img, $offset1 + 40 + ($i * 40), 25, $offset1 + 40 + ($i * 40), 225, $black);
imageline($img, $offset1, 65 + ($i * 40), $offset1 + 200, 65 + ($i * 40), $black);
imageline($img, $offset2 + 40 + ($i * 40), 25, $offset2 + 40 + ($i * 40), 225, $black);
imageline($img, $offset2, 65 + ($i * 40), $offset2 + 200, 65 + ($i * 40), $black);
}
$code_count = sizeof($code);
$characters = array();
$bitmap = array_fill(0, 25, 0);
$cellorder = array();
$xs = array();
$ys = array();
$chars = array_merge(range('A', 'Z'), range('1', '9'));
for ($i = 0, $count = sizeof($chars) - 1; $i < 25; ++$i)
{
// Put a character in this cell
$characters[$i] = $chars[array_rand($chars)];
$xs[$i] = $offset1 + 20 + (($i % 5) * 40) + mt_rand(-13, 13);
$ys[$i] = 45 + (intval($i / 5) * 40) + mt_rand(-13, 13);
// Generate a pastel color
$color = array(255, 255, 255);
for ($j = 0; $j < 3; ++$j)
{
$color[array_rand($color)] -= 25;
}
$bg = imagecolorallocate($img, $color[0], $color[1], $color[2]);
// fill the cells with the background colors
imagefilledrectangle($img, $offset1 + 1 + (($i % 5) * 40), 26 + (intval($i / 5) * 40), $offset1 + 39 + (($i % 5) * 40), 64 + (intval($i / 5) * 40), $bg);
imagefilledrectangle($img, $offset2 + 1 + (($i % 5) * 40), 26 + (intval($i / 5) * 40), $offset2 + 39 + (($i % 5) * 40), 64 + (intval($i / 5) * 40), $bg);
}
// assign the code to some cells
$cellorder = range(0, 24);
shuffle($cellorder);
array_splice($cellorder, $code_count);
for ($i = 0; $i < $code_count; ++$i)
{
$bitmap[$cellorder[$i]] = $i + 1;
$characters[$cellorder[$i]] = $code[$i];
}
// assign the remaning cells to three separate colors
$spares = array(array(), array(), array());
for ($i = 0; $i < 25; ++$i)
{
if (!$bitmap[$i])
{
$spares[array_rand($spares)][] = $i;
}
}
shuffle($spares[0]);
shuffle($spares[1]);
shuffle($spares[2]);
// draw circles and lines for our fake entries
for ($k = 0; $k < 3; ++$k )
{
for ($i = 0, $size = sizeof($spares[$k]); $i < $size; ++$i )
{
imagefilledellipse($img, $xs[$spares[$k][$i]], $ys[$spares[$k][$i]], 20, 20, $colors[($red + $k + 1) % 4]);
if ($i)
{
imageline($img, $xs[$spares[$k][$i - 1]], $ys[$spares[$k][$i - 1]], $xs[$spares[$k][$i]], $ys[$spares[$k][$i]], $colors[($red + $k + 1) % 4]);
}
}
}
// draw lines for our real entries
for ($i = 1; $i < $code_count; ++$i )
{
imageline($img, $xs[$cellorder[$i - 1]], $ys[$cellorder[$i - 1]], $xs[$cellorder[$i]], $ys[$cellorder[$i]], $colors[$red]);
}
// write characters into the text cells & put white dots (change this?) on our fake entry circles
for ($i = 0; $i < 25; ++$i)
{
if (!$bitmap[$i])
{
imagefilledellipse($img, $xs[$i], $ys[$i], 9, 9, $white);
}
$level = intval($i / 5);
$pos = $i % 5;
imagettftext($img, 12, 0, $offset2 + 15 + ($pos * 40), 50 + ($level * 40), $black, $fonts[array_rand($fonts)], $characters[$i]);
}
// draw our real entries in
for ($i = 0; $i < $code_count; ++$i )
{
imagefilledellipse($img, $xs[$cellorder[$i]], $ys[$cellorder[$i]], 20, 20, $colors[$red]);
imagettftext($img, 12, 0, $xs[$cellorder[$i]] - 5, $ys[$cellorder[$i]] + 5, $white, $fonts[array_rand($fonts)], ($i + 1));
}
// Send image
$this->send_image($img);
}
/**
* entropy
*/
@ -392,7 +732,7 @@ class captcha
// Bottom right
$box[2][0] = mt_rand($img_x - 40, $img_x - 20);
$box[2][1] = mt_rand($img_y - 50, $img_y - 30);
// Bottom left.
// because we want to be able to make shortcuts in the 3d->2d,
// we'll calculate the 4th point so that it forms a proper trapezoid
@ -424,11 +764,11 @@ class captcha
// (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[1][0] - $box[0][0]) / ($subdivision_factor * $plane_x);
$dxy = ($box[1][1] - $box[0][1]) / ($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[3][0] - $box[0][0]) / ($subdivision_factor * $plane_y);
$dyy = ($box[3][1] - $box[0][1]) / ($subdivision_factor * $plane_y);
@ -564,9 +904,9 @@ class captcha
}
/**
* occlude
* overlap
*/
function policy_occlude($code)
function policy_overlap($code)
{
global $config;
$char_size = 40;
@ -610,7 +950,7 @@ class captcha
$offset = mt_rand(0, $width_avail);
// Add some line noise
if ($config['policy_occlude_noise_line'])
if ($config['policy_overlap_noise_line'])
{
$this->noise_line($img, 0, 0, $img_x, $img_y, $background, $fontcolors, $random);
}
@ -633,9 +973,9 @@ class captcha
}
// Add some medium pixel noise
if ($config['policy_occlude_noise_pixel'])
if ($config['policy_overlap_noise_pixel'])
{
$this->noise_pixel($img, 0, 0, $img_x, $img_y, $background, $fontcolors, $random, $config['policy_occlude_noise_pixel']);
$this->noise_pixel($img, 0, 0, $img_x, $img_y, $background, $fontcolors, $random, $config['policy_overlap_noise_pixel']);
}
// Send image
@ -793,8 +1133,19 @@ class captcha
*/
function captcha_char($override = false)
{
$character_classes = array('char_vector', 'char_ttf', 'char_hatches', 'char_cube3d', 'char_dots');
static $character_classes = array();
// Some people have GD but no TTF support
if (sizeof($character_classes) == 0)
{
$character_classes = array('char_vector', 'char_hatches', 'char_cube3d', 'char_dots');
if (function_exists('imagettfbbox') && function_exists('imagettftext'))
{
$character_classes[] = 'char_ttf';
}
}
//$character_classes = array('char_dots');
// Use the module $override, else a random picked one...
$class = ($override !== false && in_array($override, $character_classes)) ? $override : $character_classes[array_rand($character_classes)];
@ -828,7 +1179,7 @@ class char_dots
$this->width_percent = (!empty($width_percent)) ? max(25, min(150, intval($width_percent))) : mt_rand(60, 90);
$this->space = 10;
$this->radius = 3;
$this->radius = 1;
$this->letter = $letter;
}
@ -875,16 +1226,16 @@ class char_dots
}
break;
case 'arc':
$arclengthdeg = $veclist[6] - $veclist[5];
$arclengthdeg += ( $arclengthdeg < 0 ) ? 360 : 0;
$arclength = ((($veclist[3] * $width) + ($veclist[4] * $height)) * M_PI) / 2;
$arclength = ($arclength * $arclengthdeg) / 360;
$x_c = $veclist[1] * $width;
$y_c = (1 - $veclist[2]) * $height;
$increment = ($arclengthdeg / $arclength);
@ -909,7 +1260,7 @@ class char_dots
$yoff + $y_c + $y_o2,
$color);
}
break;
default:
@ -982,7 +1333,7 @@ class char_vector
$yp = ($i - $xp) / 3;
$xp--;
$yp--;
switch ($veclist[0])
{
case 'line':
@ -1051,7 +1402,7 @@ class char_ttf
$angle = (isset($args['angle'])) ? $args['angle'] : false;
}
$fonts = $this->captcha_load_ttf_fonts();
$fonts = captcha_load_ttf_fonts();
if (empty($font) || !isset($fonts[$font]))
{
@ -1088,33 +1439,6 @@ class char_ttf
$data = imagettfbbox($scale, $this->angle, $this->fontfile, $this->letter);
return ($this->angle > 0) ? array($data[6], $data[5], $data[2], $data[1]) : array($data[0], $data[7], $data[4], $data[3]);
}
/**
* Load True Type Fonts
*/
function captcha_load_ttf_fonts()
{
static $load_files = array();
if (sizeof($load_files) > 0)
{
return $load_files;
}
global $phpbb_root_path;
$dr = opendir($phpbb_root_path . 'includes/captcha/fonts');
while (false !== ($entry = readdir($dr)))
{
if (strtolower(pathinfo($entry, PATHINFO_EXTENSION)) == 'ttf')
{
$load_files[$entry] = $phpbb_root_path . 'includes/captcha/fonts/' . $entry;
}
}
closedir($dr);
return $load_files;
}
}
/**
@ -2166,193 +2490,212 @@ function captcha_bitmaps()
);
}
/**
* Load True Type Fonts
*/
function captcha_load_ttf_fonts()
{
static $load_files = array();
if (sizeof($load_files) > 0)
{
return $load_files;
}
global $phpbb_root_path;
$dr = opendir($phpbb_root_path . 'includes/captcha/fonts');
while (false !== ($entry = readdir($dr)))
{
if (strtolower(pathinfo($entry, PATHINFO_EXTENSION)) == 'ttf')
{
$load_files[$entry] = $phpbb_root_path . 'includes/captcha/fonts/' . $entry;
}
}
closedir($dr);
return $load_files;
}
/**
* Return vectors
*/
function captcha_vectors()
{
return array(
'A' => array(
array('line', 0.00,0.00, 0.50,1.00),
array('line', 1.00,0.00, 0.50,1.00),
array('line', 0.25,0.50, 0.75,0.50),
array('line', 0.00, 0.00, 0.50, 1.00, 1.10714871779, 1.11803398875),
array('line', 1.00, 0.00, 0.50, 1.00, 2.0344439358, 1.11803398875),
array('line', 0.25, 0.50, 0.75, 0.50, 0.00, 0.50),
),
'B' => array(
array('line', 0.00,0.00, 0.00,1.00),
array('line', 0.00,1.00, 0.70,1.00),
array('line', 0.00,0.50, 0.70,0.50),
array('line', 0.00,0.00, 0.70,0.00),
array('arc', 0.70,0.75, 0.60,0.50, 270,90),
array('arc', 0.70,0.25, 0.60,0.50, 270,90),
array('line', 0.00, 0.00, 0.00, 1.00, 1.57079632679, 1.00),
array('line', 0.00, 1.00, 0.70, 1.00, 0.00, 0.70),
array('line', 0.00, 0.50, 0.70, 0.50, 0.00, 0.70),
array('line', 0.00, 0.00, 0.70, 0.00, 0.00, 0.70),
array('arc', 0.70, 0.75, 0.60, 0.50, 270, 90),
array('arc', 0.70, 0.25, 0.60, 0.50, 270, 90),
),
'C' => array(
array('arc', 0.50,0.50, 1.00,1.00, 45,315),
array('arc', 0.50, 0.50, 1.00, 1.00, 45, 315),
),
'D' => array(
array('line', 0.00,0.00, 0.00,1.00),
array('line', 0.00,0.00, 0.50,0.00),
array('line', 0.00,1.00, 0.50,1.00),
array('arc', 0.50,0.50, 1.00,1.00, 270,90),
array('line', 0.00, 0.00, 0.00, 1.00, 1.57079632679, 1.00),
array('line', 0.00, 0.00, 0.50, 0.00, 0.00, 0.50),
array('line', 0.00, 1.00, 0.50, 1.00, 0.00, 0.50),
array('arc', 0.50, 0.50, 1.00, 1.00, 270, 90),
),
'E' => array(
array('line', 0.00,0.00, 1.00,0.00),
array('line', 0.00,0.00, 0.00,1.00),
array('line', 0.00,1.00, 1.00,1.00),
array('line', 0.00,0.50, 0.50,0.50),
array('line', 0.00, 0.00, 1.00, 0.00, 0.00, 1.00),
array('line', 0.00, 0.00, 0.00, 1.00, 1.57079632679, 1.00),
array('line', 0.00, 1.00, 1.00, 1.00, 0.00, 1.00),
array('line', 0.00, 0.50, 0.50, 0.50, 0.00, 0.50),
),
'F' => array(
array('line', 0.00,0.00, 0.00,1.00),
array('line', 0.00,1.00, 1.00,1.00),
array('line', 0.00,0.50, 0.50,0.50),
array('line', 0.00, 0.00, 0.00, 1.00, 1.57079632679, 1.00),
array('line', 0.00, 1.00, 1.00, 1.00, 0.00, 1.00),
array('line', 0.00, 0.50, 0.50, 0.50, 0.00, 0.50),
),
'G' => array(
array('line', 0.50,0.50, 1.00,0.50),
array('line', 1.00,0.00, 1.00,0.50),
array('arc', 0.50,0.50, 1.00,1.00, 0,315),
array('line', 0.50, 0.50, 1.00, 0.50, 0.00, 0.50),
array('line', 1.00, 0.00, 1.00, 0.50, 1.57079632679, 0.50),
array('arc', 0.50, 0.50, 1.00, 1.00, 0, 315),
),
'H' => array(
array('line', 0.00,0.00, 0.00,1.00),
array('line', 1.00,0.00, 1.00,1.00),
array('line', 0.00,0.50, 1.00,0.50),
array('line', 0.00, 0.00, 0.00, 1.00, 1.57079632679, 1.00),
array('line', 1.00, 0.00, 1.00, 1.00, 1.57079632679, 1.00),
array('line', 0.00, 0.50, 1.00, 0.50, 0.00, 1.00),
),
'I' => array(
array('line', 0.00,0.00, 1.00,0.00),
array('line', 0.00,1.00, 1.00,1.00),
array('line', 0.50,0.00, 0.50,1.00),
array('line', 0.00, 0.00, 1.00, 0.00, 0.00, 1.00),
array('line', 0.00, 1.00, 1.00, 1.00, 0.00, 1.00),
array('line', 0.50, 0.00, 0.50, 1.00, 1.57079632679, 1.00),
),
'J' => array(
// array('line', 0.00,1.00, 1.00,1.00),
// array('line', 0.50,1.00, 0.50,0.25),
// array('arc', 0.25,0.25, 0.50,0.50, 0,180),
array('line', 1.00,1.00, 1.00,0.25),
array('arc', 0.50,0.25, 1.00,0.50, 0,180),
array('line', 1.00, 1.00, 1.00, 0.25, -1.57079632679, 0.75),
array('arc', 0.50, 0.25, 1.00, 0.50, 0, 180),
),
'K' => array(
array('line', 0.00,0.00, 0.00,1.00),
array('line', 0.00,0.50, 1.00,1.00),
array('line', 0.00,0.50, 1.00,0.00),
array('line', 0.00, 0.00, 0.00, 1.00, 1.57079632679, 1.00),
array('line', 0.00, 0.50, 1.00, 1.00, 0.463647609001, 1.11803398875),
array('line', 0.00, 0.50, 1.00, 0.00, -0.463647609001, 1.11803398875),
),
'L' => array(
array('line', 0.00,0.00, 0.00,1.00),
array('line', 0.00,0.00, 1.00,0.00),
array('line', 0.00, 0.00, 0.00, 1.00, 1.57079632679, 1.00),
array('line', 0.00, 0.00, 1.00, 0.00, 0.00, 1.00),
),
'M' => array(
array('line', 0.00,0.00, 0.00,1.00),
array('line', 0.50,0.50, 0.00,1.00),
array('line', 0.50,0.50, 1.00,1.00),
array('line', 1.00,0.00, 1.00,1.00),
array('line', 0.00, 0.00, 0.00, 1.00, 1.57079632679, 1.00),
array('line', 0.50, 0.50, 0.00, 1.00, 2.35619449019, 0.707106781187),
array('line', 0.50, 0.50, 1.00, 1.00, 0.785398163397, 0.707106781187),
array('line', 1.00, 0.00, 1.00, 1.00, 1.57079632679, 1.00),
),
'N' => array(
array('line', 0.00,0.00, 0.00,1.00),
array('line', 0.00,1.00, 1.00,0.00),
array('line', 1.00,0.00, 1.00,1.00),
array('line', 0.00, 0.00, 0.00, 1.00, 1.57079632679, 1.00),
array('line', 0.00, 1.00, 1.00, 0.00, -0.785398163397, 1.41421356237),
array('line', 1.00, 0.00, 1.00, 1.00, 1.57079632679, 1.00),
),
'O' => array(
array('arc', 0.50,0.50, 1.00,1.00, 0,360),
array('arc', 0.50, 0.50, 1.00, 1.00, 0, 360),
),
'P' => array(
array('line', 0.00,0.00, 0.00,1.00),
array('line', 0.00,1.00, 0.70,1.00),
array('line', 0.00,0.50, 0.70,0.50),
array('arc', 0.70,0.75, 0.60,0.50, 270,90),
array('line', 0.00, 0.00, 0.00, 1.00, 1.57079632679, 1.00),
array('line', 0.00, 1.00, 0.70, 1.00, 0.00, 0.70),
array('line', 0.00, 0.50, 0.70, 0.50, 0.00, 0.70),
array('arc', 0.70, 0.75, 0.60, 0.50, 270, 90),
),
'Q' => array(
array('line', 0.70,0.30, 1.00,0.00),
array('arc', 0.50,0.50, 1.00,1.00, 0,360),
array('line', 0.70, 0.30, 1.00, 0.00, -0.785398163397, 0.424264068712),
array('arc', 0.50, 0.50, 1.00, 1.00, 0, 360),
),
'R' => array(
array('line', 0.00,0.00, 0.00,1.00),
array('line', 0.00,1.00, 0.70,1.00),
array('line', 0.00,0.50, 0.70,0.50),
array('line', 0.50,0.50, 1.00,0.00),
array('arc', 0.70,0.75, 0.60,0.50, 270,90),
array('line', 0.00, 0.00, 0.00, 1.00, 1.57079632679, 1.00),
array('line', 0.00, 1.00, 0.70, 1.00, 0.00, 0.70),
array('line', 0.00, 0.50, 0.70, 0.50, 0.00, 0.70),
array('line', 0.50, 0.50, 1.00, 0.00, -0.785398163397, 0.707106781187),
array('arc', 0.70, 0.75, 0.60, 0.50, 270, 90),
),
'S' => array(
array('arc', 0.50,0.75, 1.00,0.50, 90,360),
array('arc', 0.50,0.25, 1.00,0.50, 270,180),
array('arc', 0.50, 0.75, 1.00, 0.50, 90, 360),
array('arc', 0.50, 0.25, 1.00, 0.50, 270, 180),
),
'T' => array(
array('line', 0.00,1.00, 1.00,1.00),
array('line', 0.50,0.00, 0.50,1.00),
array('line', 0.00, 1.00, 1.00, 1.00, 0.00, 1.00),
array('line', 0.50, 0.00, 0.50, 1.00, 1.57079632679, 1.00),
),
'U' => array(
array('line', 0.00,1.00, 0.00,0.25),
array('line', 1.00,1.00, 1.00,0.25),
array('arc', 0.50,0.25, 1.00,0.50, 0,180),
array('line', 0.00, 1.00, 0.00, 0.25, -1.57079632679, 0.75),
array('line', 1.00, 1.00, 1.00, 0.25, -1.57079632679, 0.75),
array('arc', 0.50, 0.25, 1.00, 0.50, 0, 180),
),
'V' => array(
array('line', 0.00,1.00, 0.50,0.00),
array('line', 1.00,1.00, 0.50,0.00),
array('line', 0.00, 1.00, 0.50, 0.00, -1.10714871779, 1.11803398875),
array('line', 1.00, 1.00, 0.50, 0.00, -2.0344439358, 1.11803398875),
),
'W' => array(
array('line', 0.00,1.00, 0.25,0.00),
array('line', 0.50,0.50, 0.25,0.00),
array('line', 0.50,0.50, 0.75,0.00),
array('line', 1.00,1.00, 0.75,0.00),
array('line', 0.00, 1.00, 0.25, 0.00, -1.32581766367, 1.0307764064),
array('line', 0.50, 0.50, 0.25, 0.00, -2.0344439358, 0.559016994375),
array('line', 0.50, 0.50, 0.75, 0.00, -1.10714871779, 0.559016994375),
array('line', 1.00, 1.00, 0.75, 0.00, -1.81577498992, 1.0307764064),
),
'X' => array(
array('line', 0.00,1.00, 1.00,0.00),
array('line', 0.00,0.00, 1.00,1.00),
array('line', 0.00, 1.00, 1.00, 0.00, -0.785398163397, 1.41421356237),
array('line', 0.00, 0.00, 1.00, 1.00, 0.785398163397, 1.41421356237),
),
'Y' => array(
array('line', 0.00,1.00, 0.50,0.50),
array('line', 1.00,1.00, 0.50,0.50),
array('line', 0.50,0.50, 0.50,0.00),
array('line', 0.00, 1.00, 0.50, 0.50, -0.785398163397, 0.707106781187),
array('line', 1.00, 1.00, 0.50, 0.50, -2.35619449019, 0.707106781187),
array('line', 0.50, 0.50, 0.50, 0.00, -1.57079632679, 0.50),
),
'Z' => array(
array('line', 0.00,1.00, 1.00,1.00),
array('line', 0.00,0.00, 1.00,1.00),
array('line', 0.00,0.00, 1.00,0.00),
array('line', 0.00, 1.00, 1.00, 1.00, 0.00, 1.00),
array('line', 0.00, 0.00, 1.00, 1.00, 0.785398163397, 1.41421356237),
array('line', 0.00, 0.00, 1.00, 0.00, 0.00, 1.00),
),
'1' => array(
array('line', 0.00,0.75, 0.50,1.00),
array('line', 0.50,0.00, 0.50,1.00),
array('line', 0.00,0.00, 1.00,0.00),
array('line', 0.00, 0.75, 0.50, 1.00, 0.463647609001, 0.559016994375),
array('line', 0.50, 0.00, 0.50, 1.00, 1.57079632679, 1.00),
array('line', 0.00, 0.00, 1.00, 0.00, 0.00, 1.00),
),
'2' => array(
array('line', 0.00,0.00, 1.00,0.00),
array('arc', 0.50,0.70, 1.00,0.60, 180,360),
array('arc', 0.50,0.70, 1.00,0.70, 0,90),
array('arc', 0.50,0.00, 1.00,0.70, 180,270),
array('line', 0.00, 0.00, 1.00, 0.00, 0.00, 1.00),
array('arc', 0.50, 0.70, 1.00, 0.60, 180, 360),
array('arc', 0.50, 0.70, 1.00, 0.70, 0, 90),
array('arc', 0.50, 0.00, 1.00, 0.70, 180, 270),
),
'3' => array(
array('arc', 0.50,0.75, 1.00,0.50, 180,90),
array('arc', 0.50,0.25, 1.00,0.50, 270,180),
array('arc', 0.50, 0.75, 1.00, 0.50, 180, 90),
array('arc', 0.50, 0.25, 1.00, 0.50, 270, 180),
),
'4' => array(
array('line', 0.70,0.00, 0.70,1.00),
array('line', 0.00,0.50, 0.70,1.00),
array('line', 0.00,0.50, 1.00,0.50),
array('line', 0.70, 0.00, 0.70, 1.00, 1.57079632679, 1.00),
array('line', 0.00, 0.50, 0.70, 1.00, 0.620249485983, 0.860232526704),
array('line', 0.00, 0.50, 1.00, 0.50, 0.00, 1.00),
),
'5' => array(
array('line', 0.00,1.00, 1.00,1.00),
array('line', 0.00,1.00, 0.00,0.60),
array('line', 0.00,0.60, 0.50,0.60),
array('arc', 0.50,0.30, 1.00,0.60, 270,180),
array('line', 0.00, 1.00, 1.00, 1.00, 0.00, 1.00),
array('line', 0.00, 1.00, 0.00, 0.60, -1.57079632679, 0.4),
array('line', 0.00, 0.60, 0.50, 0.60, 0.00, 0.50),
array('arc', 0.50, 0.30, 1.00, 0.60, 270, 180),
),
'6' => array(
// array('line', 0.00,0.50, 0.00,0.30),
// array('arc', 0.50,0.50, 1.00,1.00, 180,315),
// array('arc', 0.50,0.30, 1.00,0.60, 0,360),
array('arc', 0.50,0.50, 1.00,1.00, 90,315),
array('arc', 0.50,0.30, 0.80,0.60, 0,360),
array('arc', 0.50, 0.50, 1.00, 1.00, 90, 315),
array('arc', 0.50, 0.30, 0.80, 0.60, 0, 360),
),
'7' => array(
array('line', 0.00,1.00, 1.00,1.00),
array('line', 0.50,0.00, 1.00,1.00),
array('line', 0.00, 1.00, 1.00, 1.00, 0.00, 1.00),
array('line', 0.50, 0.00, 1.00, 1.00, 1.10714871779, 1.11803398875),
),
'8' => array(
array('arc', 0.50,0.75, 1.00,0.50, 0,360),
array('arc', 0.50,0.25, 1.00,0.50, 0,360),
array('arc', 0.50, 0.75, 1.00, 0.50, 0, 360),
array('arc', 0.50, 0.25, 1.00, 0.50, 0, 360),
),
'9' => array(
// array('line', 1.00,0.50, 1.00,0.70),
// array('arc', 0.50,0.50, 1.00,1.00, 0,135),
// array('arc', 0.50,0.70, 1.00,0.60, 0,360),
array('arc', 0.50,0.50, 1.00,1.00, 270,135),
array('arc', 0.50,0.70, 0.80,0.60, 0,360),
),
array('arc', 0.50, 0.50, 1.00, 1.00, 270, 135),
array('arc', 0.50, 0.70, 0.80, 0.60, 0, 360),
)
);
}

View File

@ -24,7 +24,7 @@ class ucp_confirm
{
function main($id, $mode)
{
global $db, $user, $phpbb_root_path;
global $db, $user, $phpbb_root_path, $config;
// Do we have an id? No, then just exit
$confirm_id = request_var('id', '');
@ -51,9 +51,31 @@ class ucp_confirm
exit;
}
if (extension_loaded('gd'))
// Some people might want the olde style CAPTCHA even if they have GD enabled, this also saves us from people who have GD but no TTF
$policy_modules = array('policy_entropy', 'policy_3dbitmap');
if (function_exists('imagettfbbox') && function_exists('imagettftext'))
{
$policy_modules[] = 'policy_overlap';
$policy_modules[] = 'policy_shape';
$policy_modules[] = 'policy_cells';
$policy_modules[] = 'policy_stencil';
$policy_modules[] = 'policy_composite';
}
foreach ($policy_modules as $key => $name)
{
if ($config[$name] === '0')
{
unset($policy_modules[$key]);
}
}
$policy = '';
if (extension_loaded('gd') && sizeof($policy_modules))
{
include($phpbb_root_path . 'includes/captcha/captcha_gd.php');
$policy = $policy_modules[array_rand($policy_modules)];
}
else
{
@ -61,7 +83,7 @@ class ucp_confirm
}
$captcha = new captcha();
$captcha->execute($row['code']);
$captcha->execute($row['code'], $policy);
exit;
}
}

View File

@ -1084,6 +1084,14 @@ class install_install extends module
SET forum_last_post_time = $current_time",
);
// This is for people who have TTF disabled
if (!(@function_exists('imagettfbbox') && @function_exists('imagettftext')))
{
$sql_ary[] = 'UPDATE ' . $table_prefix . "config
SET config_value = '0'
WHERE config_name = 'policy_shape'";
}
foreach ($sql_ary as $sql)
{
$sql = trim(str_replace('|', ';', $sql));

View File

@ -162,9 +162,9 @@ INSERT INTO phpbb_config (config_name, config_value) VALUES ('pass_complex', '.*
INSERT INTO phpbb_config (config_name, config_value) VALUES ('pm_edit_time', '0');
INSERT INTO phpbb_config (config_name, config_value) VALUES ('pm_max_boxes', '4');
INSERT INTO phpbb_config (config_name, config_value) VALUES ('pm_max_msgs', '50');
INSERT INTO phpbb_config (config_name, config_value) VALUES ('policy_occlude', '0');
INSERT INTO phpbb_config (config_name, config_value) VALUES ('policy_occlude_noise_pixel', '1');
INSERT INTO phpbb_config (config_name, config_value) VALUES ('policy_occlude_noise_line', '1');
INSERT INTO phpbb_config (config_name, config_value) VALUES ('policy_overlap', '0');
INSERT INTO phpbb_config (config_name, config_value) VALUES ('policy_overlap_noise_pixel', '1');
INSERT INTO phpbb_config (config_name, config_value) VALUES ('policy_overlap_noise_line', '1');
INSERT INTO phpbb_config (config_name, config_value) VALUES ('policy_entropy', '1');
INSERT INTO phpbb_config (config_name, config_value) VALUES ('policy_entropy_noise_pixel', '2');
INSERT INTO phpbb_config (config_name, config_value) VALUES ('policy_entropy_noise_line', '1');
@ -172,6 +172,9 @@ INSERT INTO phpbb_config (config_name, config_value) VALUES ('policy_shape', '1'
INSERT INTO phpbb_config (config_name, config_value) VALUES ('policy_shape_noise_pixel', '1');
INSERT INTO phpbb_config (config_name, config_value) VALUES ('policy_shape_noise_line', '1');
INSERT INTO phpbb_config (config_name, config_value) VALUES ('policy_3dbitmap', '0');
INSERT INTO phpbb_config (config_name, config_value) VALUES ('policy_cells', '0');
INSERT INTO phpbb_config (config_name, config_value) VALUES ('policy_stencil', '0');
INSERT INTO phpbb_config (config_name, config_value) VALUES ('policy_composite', '0');
INSERT INTO phpbb_config (config_name, config_value) VALUES ('posts_per_page', '10');
INSERT INTO phpbb_config (config_name, config_value) VALUES ('print_pm', '1');
INSERT INTO phpbb_config (config_name, config_value) VALUES ('queue_interval', '600');

View File

@ -88,16 +88,21 @@ $lang = array_merge($lang, array(
'BOXES_LIMIT_EXPLAIN' => 'Users may receive no more than this many messages in each of their private message boxes or zero for unlimited messages.',
'CAPTCHA_OPTIONS' => 'Captcha Options',
'CAPTCHA_OCCLUDE' => 'Occlude',
'CAPTCHA_OVERLAP' => 'Overlap',
'CAPTCHA_ENTROPY' => 'Entropy',
'CAPTCHA_SHAPE' => 'Shape',
'CAPTCHA_3DBITMAP' => '3D Bitmap',
'CAPTCHA_CELLS' => 'Cells',
'CAPTCHA_STENCIL' => 'Stencil',
'CAPTCHA_COMPOSITE' => 'Composite',
'ENTROPY_NOISE_PIXEL' => 'Entropy pixel noise',
'ENTROPY_NOISE_LINE' => 'Entropy line noise',
'SHAPE_NOISE_PIXEL' => 'Shape pixel noise',
'SHAPE_NOISE_LINE' => 'Shape line noise',
'OCCLUDE_NOISE_PIXEL' => 'Occlude pixel noise',
'OCCLUDE_NOISE_LINE' => 'Occlude line noise',
'OVERLAP_NOISE_PIXEL' => 'Overlap pixel noise',
'OVERLAP_NOISE_LINE' => 'Overlap line noise',
'HEAVY' => 'Heavy',
'MEDIUM' => 'Medium',
'LIGHT' => 'Light',

View File

@ -95,7 +95,7 @@ $lang = array_merge($lang, array(
'CLOSE_WINDOW' => 'Close window',
'CONFIRM' => 'Confirm',
'CONFIRM_CODE' => 'Confirmation code',
'CONFIRM_CODE_EXPLAIN' => 'Enter the code exactly as you see it in the image, it is case sensitive, zero has a diagonal line through it.',
'CONFIRM_CODE_EXPLAIN' => 'Enter the code exactly as you see it in the image, it is case insensitive.',
'CONFIRM_CODE_WRONG' => 'The confirmation code you entered was incorrect.',
'CONGRATULATIONS' => 'Congratulations to',
'CONNECTION_FAILED' => 'Connection failed',