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-rw-r--r--phpBB/phpbb/captcha/char_cube3d.php277
-rw-r--r--phpBB/phpbb/captcha/colour_manager.php527
-rw-r--r--phpBB/phpbb/captcha/factory.php88
-rw-r--r--phpBB/phpbb/captcha/gd.php1847
-rw-r--r--phpBB/phpbb/captcha/gd_wave.php845
-rw-r--r--phpBB/phpbb/captcha/non_gd.php386
-rw-r--r--phpBB/phpbb/captcha/plugins/captcha_abstract.php390
-rw-r--r--phpBB/phpbb/captcha/plugins/gd.php130
-rw-r--r--phpBB/phpbb/captcha/plugins/gd_wave.php42
-rw-r--r--phpBB/phpbb/captcha/plugins/nogd.php42
-rw-r--r--phpBB/phpbb/captcha/plugins/qa.php1009
-rw-r--r--phpBB/phpbb/captcha/plugins/recaptcha.php330
12 files changed, 5913 insertions, 0 deletions
diff --git a/phpBB/phpbb/captcha/char_cube3d.php b/phpBB/phpbb/captcha/char_cube3d.php
new file mode 100644
index 0000000000..a712b16dce
--- /dev/null
+++ b/phpBB/phpbb/captcha/char_cube3d.php
@@ -0,0 +1,277 @@
+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+namespace phpbb\captcha;
+
+class char_cube3d
+{
+ var $bitmap;
+ var $bitmap_width;
+ var $bitmap_height;
+
+ var $basis_matrix = array(array(1, 0, 0), array(0, 1, 0), array(0, 0, 1));
+ var $abs_x = array(1, 0);
+ var $abs_y = array(0, 1);
+ var $x = 0;
+ var $y = 1;
+ var $z = 2;
+ var $letter = '';
+
+ /**
+ */
+ function __construct(&$bitmaps, $letter)
+ {
+ $this->bitmap = $bitmaps['data'][$letter];
+ $this->bitmap_width = $bitmaps['width'];
+ $this->bitmap_height = $bitmaps['height'];
+
+ $this->basis_matrix[0][0] = mt_rand(-600, 600);
+ $this->basis_matrix[0][1] = mt_rand(-600, 600);
+ $this->basis_matrix[0][2] = (mt_rand(0, 1) * 2000) - 1000;
+ $this->basis_matrix[1][0] = mt_rand(-1000, 1000);
+ $this->basis_matrix[1][1] = mt_rand(-1000, 1000);
+ $this->basis_matrix[1][2] = mt_rand(-1000, 1000);
+
+ $this->normalize($this->basis_matrix[0]);
+ $this->normalize($this->basis_matrix[1]);
+ $this->basis_matrix[2] = $this->cross_product($this->basis_matrix[0], $this->basis_matrix[1]);
+ $this->normalize($this->basis_matrix[2]);
+
+ // $this->basis_matrix[1] might not be (probably isn't) orthogonal to $basis_matrix[0]
+ $this->basis_matrix[1] = $this->cross_product($this->basis_matrix[0], $this->basis_matrix[2]);
+ $this->normalize($this->basis_matrix[1]);
+
+ // Make sure our cube is facing into the canvas (assuming +z == in)
+ for ($i = 0; $i < 3; ++$i)
+ {
+ if ($this->basis_matrix[$i][2] < 0)
+ {
+ $this->basis_matrix[$i][0] *= -1;
+ $this->basis_matrix[$i][1] *= -1;
+ $this->basis_matrix[$i][2] *= -1;
+ }
+ }
+
+ // Force our "z" basis vector to be the one with greatest absolute z value
+ $this->x = 0;
+ $this->y = 1;
+ $this->z = 2;
+
+ // Swap "y" with "z"
+ if ($this->basis_matrix[1][2] > $this->basis_matrix[2][2])
+ {
+ $this->z = 1;
+ $this->y = 2;
+ }
+
+ // Swap "x" with "z"
+ if ($this->basis_matrix[0][2] > $this->basis_matrix[$this->z][2])
+ {
+ $this->x = $this->z;
+ $this->z = 0;
+ }
+
+ // Still need to determine which of $x,$y are which.
+ // wrong orientation if y's y-component is less than it's x-component
+ // likewise if x's x-component is less than it's y-component
+ // if they disagree, go with the one with the greater weight difference.
+ // rotate if positive
+ $weight = (abs($this->basis_matrix[$this->x][1]) - abs($this->basis_matrix[$this->x][0])) + (abs($this->basis_matrix[$this->y][0]) - abs($this->basis_matrix[$this->y][1]));
+
+ // Swap "x" with "y"
+ if ($weight > 0)
+ {
+ list($this->x, $this->y) = array($this->y, $this->x);
+ }
+
+ $this->abs_x = array($this->basis_matrix[$this->x][0], $this->basis_matrix[$this->x][1]);
+ $this->abs_y = array($this->basis_matrix[$this->y][0], $this->basis_matrix[$this->y][1]);
+
+ if ($this->abs_x[0] < 0)
+ {
+ $this->abs_x[0] *= -1;
+ $this->abs_x[1] *= -1;
+ }
+
+ if ($this->abs_y[1] > 0)
+ {
+ $this->abs_y[0] *= -1;
+ $this->abs_y[1] *= -1;
+ }
+
+ $this->letter = $letter;
+ }
+
+ /**
+ * Draw a character
+ */
+ function drawchar($scale, $xoff, $yoff, $img, $background, $colours)
+ {
+ $width = $this->bitmap_width;
+ $height = $this->bitmap_height;
+ $bitmap = $this->bitmap;
+
+ $colour1 = $colours[array_rand($colours)];
+ $colour2 = $colours[array_rand($colours)];
+
+ $swapx = ($this->basis_matrix[$this->x][0] > 0);
+ $swapy = ($this->basis_matrix[$this->y][1] < 0);
+
+ for ($y = 0; $y < $height; ++$y)
+ {
+ for ($x = 0; $x < $width; ++$x)
+ {
+ $xp = ($swapx) ? ($width - $x - 1) : $x;
+ $yp = ($swapy) ? ($height - $y - 1) : $y;
+
+ if ($bitmap[$height - $yp - 1][$xp])
+ {
+ $dx = $this->scale($this->abs_x, ($xp - ($swapx ? ($width / 2) : ($width / 2) - 1)) * $scale);
+ $dy = $this->scale($this->abs_y, ($yp - ($swapy ? ($height / 2) : ($height / 2) - 1)) * $scale);
+ $xo = $xoff + $dx[0] + $dy[0];
+ $yo = $yoff + $dx[1] + $dy[1];
+
+ $origin = array(0, 0, 0);
+ $xvec = $this->scale($this->basis_matrix[$this->x], $scale);
+ $yvec = $this->scale($this->basis_matrix[$this->y], $scale);
+ $face_corner = $this->sum2($xvec, $yvec);
+
+ $zvec = $this->scale($this->basis_matrix[$this->z], $scale);
+ $x_corner = $this->sum2($xvec, $zvec);
+ $y_corner = $this->sum2($yvec, $zvec);
+
+ imagefilledpolygon($img, $this->gen_poly($xo, $yo, $origin, $xvec, $x_corner,$zvec), 4, $colour1);
+ imagefilledpolygon($img, $this->gen_poly($xo, $yo, $origin, $yvec, $y_corner,$zvec), 4, $colour2);
+
+ $face = $this->gen_poly($xo, $yo, $origin, $xvec, $face_corner, $yvec);
+
+ imagefilledpolygon($img, $face, 4, $background);
+ imagepolygon($img, $face, 4, $colour1);
+ }
+ }
+ }
+ }
+
+ /*
+ * return a roughly acceptable range of sizes for rendering with this texttype
+ */
+ function range()
+ {
+ return array(3, 4);
+ }
+
+ /**
+ * Vector length
+ */
+ function vectorlen($vector)
+ {
+ return sqrt(pow($vector[0], 2) + pow($vector[1], 2) + pow($vector[2], 2));
+ }
+
+ /**
+ * Normalize
+ */
+ function normalize(&$vector, $length = 1)
+ {
+ $length = (( $length < 1) ? 1 : $length);
+ $length /= $this->vectorlen($vector);
+ $vector[0] *= $length;
+ $vector[1] *= $length;
+ $vector[2] *= $length;
+ }
+
+ /**
+ */
+ function cross_product($vector1, $vector2)
+ {
+ $retval = array(0, 0, 0);
+ $retval[0] = (($vector1[1] * $vector2[2]) - ($vector1[2] * $vector2[1]));
+ $retval[1] = -(($vector1[0] * $vector2[2]) - ($vector1[2] * $vector2[0]));
+ $retval[2] = (($vector1[0] * $vector2[1]) - ($vector1[1] * $vector2[0]));
+
+ return $retval;
+ }
+
+ /**
+ */
+ function sum($vector1, $vector2)
+ {
+ return array($vector1[0] + $vector2[0], $vector1[1] + $vector2[1], $vector1[2] + $vector2[2]);
+ }
+
+ /**
+ */
+ function sum2($vector1, $vector2)
+ {
+ return array($vector1[0] + $vector2[0], $vector1[1] + $vector2[1]);
+ }
+
+ /**
+ */
+ function scale($vector, $length)
+ {
+ if (sizeof($vector) == 2)
+ {
+ return array($vector[0] * $length, $vector[1] * $length);
+ }
+
+ return array($vector[0] * $length, $vector[1] * $length, $vector[2] * $length);
+ }
+
+ /**
+ */
+ function gen_poly($xoff, $yoff, &$vec1, &$vec2, &$vec3, &$vec4)
+ {
+ $poly = array();
+ $poly[0] = $xoff + $vec1[0];
+ $poly[1] = $yoff + $vec1[1];
+ $poly[2] = $xoff + $vec2[0];
+ $poly[3] = $yoff + $vec2[1];
+ $poly[4] = $xoff + $vec3[0];
+ $poly[5] = $yoff + $vec3[1];
+ $poly[6] = $xoff + $vec4[0];
+ $poly[7] = $yoff + $vec4[1];
+
+ return $poly;
+ }
+
+ /**
+ * dimensions
+ */
+ function dimensions($size)
+ {
+ $xn = $this->scale($this->basis_matrix[$this->x], -($this->bitmap_width / 2) * $size);
+ $xp = $this->scale($this->basis_matrix[$this->x], ($this->bitmap_width / 2) * $size);
+ $yn = $this->scale($this->basis_matrix[$this->y], -($this->bitmap_height / 2) * $size);
+ $yp = $this->scale($this->basis_matrix[$this->y], ($this->bitmap_height / 2) * $size);
+
+ $p = array();
+ $p[0] = $this->sum2($xn, $yn);
+ $p[1] = $this->sum2($xp, $yn);
+ $p[2] = $this->sum2($xp, $yp);
+ $p[3] = $this->sum2($xn, $yp);
+
+ $min_x = $max_x = $p[0][0];
+ $min_y = $max_y = $p[0][1];
+
+ for ($i = 1; $i < 4; ++$i)
+ {
+ $min_x = ($min_x > $p[$i][0]) ? $p[$i][0] : $min_x;
+ $min_y = ($min_y > $p[$i][1]) ? $p[$i][1] : $min_y;
+ $max_x = ($max_x < $p[$i][0]) ? $p[$i][0] : $max_x;
+ $max_y = ($max_y < $p[$i][1]) ? $p[$i][1] : $max_y;
+ }
+
+ return array($min_x, $min_y, $max_x, $max_y);
+ }
+}
diff --git a/phpBB/phpbb/captcha/colour_manager.php b/phpBB/phpbb/captcha/colour_manager.php
new file mode 100644
index 0000000000..6ca3c3fd2c
--- /dev/null
+++ b/phpBB/phpbb/captcha/colour_manager.php
@@ -0,0 +1,527 @@
+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+namespace phpbb\captcha;
+
+class colour_manager
+{
+ var $img;
+ var $mode;
+ var $colours;
+ var $named_colours;
+
+ /**
+ * Create the colour manager, link it to the image resource
+ */
+ function __construct($img, $background = false, $mode = 'ahsv')
+ {
+ $this->img = $img;
+ $this->mode = $mode;
+ $this->colours = array();
+ $this->named_colours = array();
+
+ if ($background !== false)
+ {
+ $bg = $this->allocate_named('background', $background);
+ imagefill($this->img, 0, 0, $bg);
+ }
+ }
+
+ /**
+ * Lookup a named colour resource
+ */
+ function get_resource($named_colour)
+ {
+ if (isset($this->named_colours[$named_colour]))
+ {
+ return $this->named_colours[$named_colour];
+ }
+
+ if (isset($this->named_rgb[$named_colour]))
+ {
+ return $this->allocate_named($named_colour, $this->named_rgb[$named_colour], 'rgb');
+ }
+
+ return false;
+ }
+
+ /**
+ * Assign a name to a colour resource
+ */
+ function name_colour($name, $resource)
+ {
+ $this->named_colours[$name] = $resource;
+ }
+
+ /**
+ * names and allocates a colour resource
+ */
+ function allocate_named($name, $colour, $mode = false)
+ {
+ $resource = $this->allocate($colour, $mode);
+
+ if ($resource !== false)
+ {
+ $this->name_colour($name, $resource);
+ }
+ return $resource;
+ }
+
+ /**
+ * allocates a specified colour into the image
+ */
+ function allocate($colour, $mode = false)
+ {
+ if ($mode === false)
+ {
+ $mode = $this->mode;
+ }
+
+ if (!is_array($colour))
+ {
+ if (isset($this->named_rgb[$colour]))
+ {
+ return $this->allocate_named($colour, $this->named_rgb[$colour], 'rgb');
+ }
+
+ if (!is_int($colour))
+ {
+ return false;
+ }
+
+ $mode = 'rgb';
+ $colour = array(255 & ($colour >> 16), 255 & ($colour >> 8), 255 & $colour);
+ }
+
+ if (isset($colour['mode']))
+ {
+ $mode = $colour['mode'];
+ unset($colour['mode']);
+ }
+
+ if (isset($colour['random']))
+ {
+ unset($colour['random']);
+ // everything else is params
+ return $this->random_colour($colour, $mode);
+ }
+
+ $rgb = $this->model_convert($colour, $mode, 'rgb');
+ $store = ($this->mode == 'rgb') ? $rgb : $this->model_convert($colour, $mode, $this->mode);
+ $resource = imagecolorallocate($this->img, $rgb[0], $rgb[1], $rgb[2]);
+ $this->colours[$resource] = $store;
+
+ return $resource;
+ }
+
+ /**
+ * randomly generates a colour, with optional params
+ */
+ function random_colour($params = array(), $mode = false)
+ {
+ if ($mode === false)
+ {
+ $mode = $this->mode;
+ }
+
+ switch ($mode)
+ {
+ case 'rgb':
+ // @TODO random rgb generation. do we intend to do this, or is it just too tedious?
+ break;
+
+ case 'ahsv':
+ case 'hsv':
+ default:
+
+ $default_params = array(
+ 'hue_bias' => false, // degree / 'r'/'g'/'b'/'c'/'m'/'y' /'o'
+ 'hue_range' => false, // if hue bias, then difference range +/- from bias
+ 'min_saturation' => 30, // 0 - 100
+ 'max_saturation' => 80, // 0 - 100
+ 'min_value' => 30, // 0 - 100
+ 'max_value' => 80, // 0 - 100
+ );
+
+ $alt = ($mode == 'ahsv') ? true : false;
+ $params = array_merge($default_params, $params);
+
+ $min_hue = 0;
+ $max_hue = 359;
+ $min_saturation = max(0, $params['min_saturation']);
+ $max_saturation = min(100, $params['max_saturation']);
+ $min_value = max(0, $params['min_value']);
+ $max_value = min(100, $params['max_value']);
+
+ if ($params['hue_bias'] !== false)
+ {
+ if (is_numeric($params['hue_bias']))
+ {
+ $h = intval($params['hue_bias']) % 360;
+ }
+ else
+ {
+ switch ($params['hue_bias'])
+ {
+ case 'o':
+ $h = $alt ? 60 : 30;
+ break;
+
+ case 'y':
+ $h = $alt ? 120 : 60;
+ break;
+
+ case 'g':
+ $h = $alt ? 180 : 120;
+ break;
+
+ case 'c':
+ $h = $alt ? 210 : 180;
+ break;
+
+ case 'b':
+ $h = 240;
+ break;
+
+ case 'm':
+ $h = 300;
+ break;
+
+ case 'r':
+ default:
+ $h = 0;
+ break;
+ }
+ }
+
+ $min_hue = $h + 360;
+ $max_hue = $h + 360;
+
+ if ($params['hue_range'])
+ {
+ $min_hue -= min(180, $params['hue_range']);
+ $max_hue += min(180, $params['hue_range']);
+ }
+ }
+
+ $h = mt_rand($min_hue, $max_hue);
+ $s = mt_rand($min_saturation, $max_saturation);
+ $v = mt_rand($min_value, $max_value);
+
+ return $this->allocate(array($h, $s, $v), $mode);
+
+ break;
+ }
+ }
+
+ /**
+ */
+ function colour_scheme($resource, $include_original = true)
+ {
+ $mode = 'hsv';
+
+ if (($pre = $this->get_resource($resource)) !== false)
+ {
+ $resource = $pre;
+ }
+
+ $colour = $this->model_convert($this->colours[$resource], $this->mode, $mode);
+ $results = ($include_original) ? array($resource) : array();
+ $colour2 = $colour3 = $colour4 = $colour;
+ $colour2[0] += 150;
+ $colour3[0] += 180;
+ $colour4[0] += 210;
+
+ $results[] = $this->allocate($colour2, $mode);
+ $results[] = $this->allocate($colour3, $mode);
+ $results[] = $this->allocate($colour4, $mode);
+
+ return $results;
+ }
+
+ /**
+ */
+ function mono_range($resource, $count = 5, $include_original = true)
+ {
+ if (is_array($resource))
+ {
+ $results = array();
+ for ($i = 0, $size = sizeof($resource); $i < $size; ++$i)
+ {
+ $results = array_merge($results, $this->mono_range($resource[$i], $count, $include_original));
+ }
+ return $results;
+ }
+
+ $mode = (in_array($this->mode, array('hsv', 'ahsv'), true) ? $this->mode : 'ahsv');
+ if (($pre = $this->get_resource($resource)) !== false)
+ {
+ $resource = $pre;
+ }
+
+ $colour = $this->model_convert($this->colours[$resource], $this->mode, $mode);
+
+ $results = array();
+ if ($include_original)
+ {
+ $results[] = $resource;
+ $count--;
+ }
+
+ // This is a hard problem. I chicken out and try to maintain readability at the cost of less randomness.
+
+ while ($count > 0)
+ {
+ $colour[1] = ($colour[1] + mt_rand(40,60)) % 99;
+ $colour[2] = ($colour[2] + mt_rand(40,60));
+ $results[] = $this->allocate($colour, $mode);
+ $count--;
+ }
+ return $results;
+ }
+
+ /**
+ * Convert from one colour model to another
+ */
+ function model_convert($colour, $from_model, $to_model)
+ {
+ if ($from_model == $to_model)
+ {
+ return $colour;
+ }
+
+ switch ($to_model)
+ {
+ case 'hsv':
+
+ switch ($from_model)
+ {
+ case 'ahsv':
+ return $this->ah2h($colour);
+ break;
+
+ case 'rgb':
+ return $this->rgb2hsv($colour);
+ break;
+ }
+ break;
+
+ case 'ahsv':
+
+ switch ($from_model)
+ {
+ case 'hsv':
+ return $this->h2ah($colour);
+ break;
+
+ case 'rgb':
+ return $this->h2ah($this->rgb2hsv($colour));
+ break;
+ }
+ break;
+
+ case 'rgb':
+ switch ($from_model)
+ {
+ case 'hsv':
+ return $this->hsv2rgb($colour);
+ break;
+
+ case 'ahsv':
+ return $this->hsv2rgb($this->ah2h($colour));
+ break;
+ }
+ break;
+ }
+ return false;
+ }
+
+ /**
+ * Slightly altered from wikipedia's algorithm
+ */
+ function hsv2rgb($hsv)
+ {
+ $this->normalize_hue($hsv[0]);
+
+ $h = $hsv[0];
+ $s = min(1, max(0, $hsv[1] / 100));
+ $v = min(1, max(0, $hsv[2] / 100));
+
+ // calculate hue sector
+ $hi = floor($hsv[0] / 60);
+
+ // calculate opposite colour
+ $p = $v * (1 - $s);
+
+ // calculate distance between hex vertices
+ $f = ($h / 60) - $hi;
+
+ // coming in or going out?
+ if (!($hi & 1))
+ {
+ $f = 1 - $f;
+ }
+
+ // calculate adjacent colour
+ $q = $v * (1 - ($f * $s));
+
+ switch ($hi)
+ {
+ case 0:
+ $rgb = array($v, $q, $p);
+ break;
+
+ case 1:
+ $rgb = array($q, $v, $p);
+ break;
+
+ case 2:
+ $rgb = array($p, $v, $q);
+ break;
+
+ case 3:
+ $rgb = array($p, $q, $v);
+ break;
+
+ case 4:
+ $rgb = array($q, $p, $v);
+ break;
+
+ case 5:
+ $rgb = array($v, $p, $q);
+ break;
+
+ default:
+ return array(0, 0, 0);
+ break;
+ }
+
+ return array(255 * $rgb[0], 255 * $rgb[1], 255 * $rgb[2]);
+ }
+
+ /**
+ * (more than) Slightly altered from wikipedia's algorithm
+ */
+ function rgb2hsv($rgb)
+ {
+ $r = min(255, max(0, $rgb[0]));
+ $g = min(255, max(0, $rgb[1]));
+ $b = min(255, max(0, $rgb[2]));
+ $max = max($r, $g, $b);
+ $min = min($r, $g, $b);
+
+ $v = $max / 255;
+ $s = (!$max) ? 0 : 1 - ($min / $max);
+
+ // if max - min is 0, we want hue to be 0 anyway.
+ $h = $max - $min;
+
+ if ($h)
+ {
+ switch ($max)
+ {
+ case $g:
+ $h = 120 + (60 * ($b - $r) / $h);
+ break;
+
+ case $b:
+ $h = 240 + (60 * ($r - $g) / $h);
+ break;
+
+ case $r:
+ $h = 360 + (60 * ($g - $b) / $h);
+ break;
+ }
+ }
+ $this->normalize_hue($h);
+
+ return array($h, $s * 100, $v * 100);
+ }
+
+ /**
+ */
+ function normalize_hue(&$hue)
+ {
+ $hue %= 360;
+
+ if ($hue < 0)
+ {
+ $hue += 360;
+ }
+ }
+
+ /**
+ * Alternate hue to hue
+ */
+ function ah2h($ahue)
+ {
+ if (is_array($ahue))
+ {
+ $ahue[0] = $this->ah2h($ahue[0]);
+ return $ahue;
+ }
+ $this->normalize_hue($ahue);
+
+ // blue through red is already ok
+ if ($ahue >= 240)
+ {
+ return $ahue;
+ }
+
+ // ahue green is at 180
+ if ($ahue >= 180)
+ {
+ // return (240 - (2 * (240 - $ahue)));
+ return (2 * $ahue) - 240; // equivalent
+ }
+
+ // ahue yellow is at 120 (RYB rather than RGB)
+ if ($ahue >= 120)
+ {
+ return $ahue - 60;
+ }
+
+ return $ahue / 2;
+ }
+
+ /**
+ * hue to Alternate hue
+ */
+ function h2ah($hue)
+ {
+ if (is_array($hue))
+ {
+ $hue[0] = $this->h2ah($hue[0]);
+ return $hue;
+ }
+ $this->normalize_hue($hue);
+
+ // blue through red is already ok
+ if ($hue >= 240)
+ {
+ return $hue;
+ }
+ else if ($hue <= 60)
+ {
+ return $hue * 2;
+ }
+ else if ($hue <= 120)
+ {
+ return $hue + 60;
+ }
+ else
+ {
+ return ($hue + 240) / 2;
+ }
+ }
+}
diff --git a/phpBB/phpbb/captcha/factory.php b/phpBB/phpbb/captcha/factory.php
new file mode 100644
index 0000000000..dd44aca8bb
--- /dev/null
+++ b/phpBB/phpbb/captcha/factory.php
@@ -0,0 +1,88 @@
+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+namespace phpbb\captcha;
+
+class factory
+{
+ /**
+ * @var \Symfony\Component\DependencyInjection\ContainerInterface
+ */
+ private $container;
+
+ /**
+ * @var \phpbb\di\service_collection
+ */
+ private $plugins;
+
+ /**
+ * Constructor
+ *
+ * @param \Symfony\Component\DependencyInjection\ContainerInterface $container
+ * @param \phpbb\di\service_collection $plugins
+ */
+ public function __construct(\Symfony\Component\DependencyInjection\ContainerInterface $container, \phpbb\di\service_collection $plugins)
+ {
+ $this->container = $container;
+ $this->plugins = $plugins;
+ }
+
+ /**
+ * Return a new instance of a given plugin
+ *
+ * @param $name
+ * @return object
+ */
+ public function get_instance($name)
+ {
+ return $this->container->get($name);
+ }
+
+ /**
+ * Call the garbage collector
+ *
+ * @param string $name The name to the captcha service.
+ */
+ function garbage_collect($name)
+ {
+ $captcha = $this->get_instance($name);
+ $captcha->garbage_collect(0);
+ }
+
+ /**
+ * Return a list of all registered CAPTCHA plugins
+ *
+ * @returns array
+ */
+ function get_captcha_types()
+ {
+ $captchas = array(
+ 'available' => array(),
+ 'unavailable' => array(),
+ );
+
+ foreach ($this->plugins as $plugin => $plugin_instance)
+ {
+ if ($plugin_instance->is_available())
+ {
+ $captchas['available'][$plugin] = $plugin_instance->get_name();
+ }
+ else
+ {
+ $captchas['unavailable'][$plugin] = $plugin_instance->get_name();
+ }
+ }
+
+ return $captchas;
+ }
+}
diff --git a/phpBB/phpbb/captcha/gd.php b/phpBB/phpbb/captcha/gd.php
new file mode 100644
index 0000000000..652df28f8a
--- /dev/null
+++ b/phpBB/phpbb/captcha/gd.php
@@ -0,0 +1,1847 @@
+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+namespace phpbb\captcha;
+
+class gd
+{
+ var $width = 360;
+ var $height = 96;
+
+ /**
+ * Create the image containing $code with a seed of $seed
+ */
+ function execute($code, $seed)
+ {
+ global $config;
+
+ mt_srand($seed);
+
+ // Create image
+ $img = imagecreatetruecolor($this->width, $this->height);
+
+ // Generate colours
+ $colour = new colour_manager($img, array(
+ 'random' => true,
+ 'min_value' => 60,
+ ), 'hsv');
+
+ $scheme = $colour->colour_scheme('background', false);
+ $scheme = $colour->mono_range($scheme, 10, false);
+ shuffle($scheme);
+
+ $bg_colours = array_splice($scheme, mt_rand(6, 12));
+
+ // Generate code characters
+ $characters = $sizes = $bounding_boxes = $noise = array();
+ $width_avail = $this->width - 15;
+ $code_len = strlen($code);
+ $captcha_bitmaps = $this->captcha_bitmaps();
+
+ for ($i = 0; $i < $code_len; ++$i)
+ {
+ $characters[$i] = new char_cube3d($captcha_bitmaps, $code[$i]);
+
+ list($min, $max) = $characters[$i]->range();
+ $sizes[$i] = mt_rand($min, $max);
+
+ $box = $characters[$i]->dimensions($sizes[$i]);
+ $width_avail -= ($box[2] - $box[0]);
+ $bounding_boxes[$i] = $box;
+ }
+
+ // Redistribute leftover x-space
+ $offset = array();
+ for ($i = 0; $i < $code_len; ++$i)
+ {
+ $denom = ($code_len - $i);
+ $denom = max(1.3, $denom);
+ $offset[$i] = phpbb_mt_rand(0, (int) round((1.5 * $width_avail) / $denom));
+ $width_avail -= $offset[$i];
+ }
+
+ if ($config['captcha_gd_x_grid'])
+ {
+ $grid = (int) $config['captcha_gd_x_grid'];
+ for ($y = 0; $y < $this->height; $y += mt_rand($grid - 2, $grid + 2))
+ {
+ $current_colour = $scheme[array_rand($scheme)];
+ imageline($img, mt_rand(0,4), mt_rand($y - 3, $y), mt_rand($this->width - 5, $this->width), mt_rand($y - 3, $y), $current_colour);
+ }
+ }
+
+ if ($config['captcha_gd_y_grid'])
+ {
+ $grid = (int) $config['captcha_gd_y_grid'];
+ for ($x = 0; $x < $this->width; $x += mt_rand($grid - 2, $grid + 2))
+ {
+ $current_colour = $scheme[array_rand($scheme)];
+ imagedashedline($img, mt_rand($x -3, $x + 3), mt_rand(0, 4), mt_rand($x -3, $x + 3), mt_rand($this->height - 5, $this->height), $current_colour);
+ }
+ }
+
+ if ($config['captcha_gd_wave'] && ($config['captcha_gd_y_grid'] || $config['captcha_gd_y_grid']))
+ {
+ $this->wave($img);
+ }
+
+ if ($config['captcha_gd_3d_noise'])
+ {
+ $xoffset = mt_rand(0,9);
+ $noise_bitmaps = $this->captcha_noise_bg_bitmaps();
+ for ($i = 0; $i < $code_len; ++$i)
+ {
+ $noise[$i] = new char_cube3d($noise_bitmaps, mt_rand(1, sizeof($noise_bitmaps['data'])));
+
+ list($min, $max) = $noise[$i]->range();
+ //$box = $noise[$i]->dimensions($sizes[$i]);
+ }
+ $xoffset = 0;
+ for ($i = 0; $i < $code_len; ++$i)
+ {
+ $dimm = $bounding_boxes[$i];
+ $xoffset += ($offset[$i] - $dimm[0]);
+ $yoffset = mt_rand(-$dimm[1], $this->height - $dimm[3]);
+
+ $noise[$i]->drawchar($sizes[$i], $xoffset, $yoffset, $img, $colour->get_resource('background'), $scheme);
+ $xoffset += $dimm[2];
+ }
+ }
+
+ $xoffset = 5;
+ for ($i = 0; $i < $code_len; ++$i)
+ {
+ $dimm = $bounding_boxes[$i];
+ $xoffset += ($offset[$i] - $dimm[0]);
+ $yoffset = mt_rand(-$dimm[1], $this->height - $dimm[3]);
+
+ $characters[$i]->drawchar($sizes[$i], $xoffset, $yoffset, $img, $colour->get_resource('background'), $scheme);
+ $xoffset += $dimm[2];
+ }
+
+ if ($config['captcha_gd_wave'])
+ {
+ $this->wave($img);
+ }
+
+ if ($config['captcha_gd_foreground_noise'])
+ {
+ $this->noise_line($img, 0, 0, $this->width, $this->height, $colour->get_resource('background'), $scheme, $bg_colours);
+ }
+
+ // Send image
+ header('Content-Type: image/png');
+ header('Cache-control: no-cache, no-store');
+ imagepng($img);
+ imagedestroy($img);
+ }
+
+ /**
+ * Sinus
+ */
+ function wave($img)
+ {
+ global $config;
+
+ $period_x = mt_rand(12,18);
+ $period_y = mt_rand(7,14);
+ $amp_x = mt_rand(5,10);
+ $amp_y = mt_rand(2,4);
+ $socket = mt_rand(0,100);
+
+ $dampen_x = mt_rand($this->width/5, $this->width/2);
+ $dampen_y = mt_rand($this->height/5, $this->height/2);
+ $direction_x = (mt_rand (0, 1));
+ $direction_y = (mt_rand (0, 1));
+
+ for ($i = 0; $i < $this->width; $i++)
+ {
+ $dir = ($direction_x) ? $i : ($this->width - $i);
+ imagecopy($img, $img, $i-1, sin($socket+ $i/($period_x + $dir/$dampen_x)) * $amp_x, $i, 0, 1, $this->height);
+ }
+ $socket = mt_rand(0,100);
+ for ($i = 0; $i < $this->height; $i++)
+ {
+ $dir = ($direction_y) ? $i : ($this->height - $i);
+ imagecopy($img, $img ,sin($socket + $i/($period_y + ($dir)/$dampen_y)) * $amp_y, $i-1, 0, $i, $this->width, 1);
+ }
+ return $img;
+ }
+
+ /**
+ * Noise line
+ */
+ function noise_line($img, $min_x, $min_y, $max_x, $max_y, $bg, $font, $non_font)
+ {
+ imagesetthickness($img, 2);
+
+ $x1 = $min_x;
+ $x2 = $max_x;
+ $y1 = $min_y;
+ $y2 = $min_y;
+
+ do
+ {
+ $line = array_merge(
+ array_fill(0, mt_rand(30, 60), $non_font[array_rand($non_font)]),
+ array_fill(0, mt_rand(30, 60), $bg)
+ );
+
+ imagesetstyle($img, $line);
+ imageline($img, $x1, $y1, $x2, $y2, IMG_COLOR_STYLED);
+
+ $y1 += mt_rand(12, 35);
+ $y2 += mt_rand(12, 35);
+ }
+ while ($y1 < $max_y && $y2 < $max_y);
+
+ $x1 = $min_x;
+ $x2 = $min_x;
+ $y1 = $min_y;
+ $y2 = $max_y;
+
+ do
+ {
+ $line = array_merge(
+ array_fill(0, mt_rand(30, 60), $non_font[array_rand($non_font)]),
+ array_fill(0, mt_rand(30, 60), $bg)
+ );
+
+ imagesetstyle($img, $line);
+ imageline($img, $x1, $y1, $x2, $y2, IMG_COLOR_STYLED);
+
+ $x1 += mt_rand(20, 35);
+ $x2 += mt_rand(20, 35);
+ }
+ while ($x1 < $max_x && $x2 < $max_x);
+ imagesetthickness($img, 1);
+ }
+
+ function captcha_noise_bg_bitmaps()
+ {
+ return array(
+ 'width' => 15,
+ 'height' => 5,
+ 'data' => array(
+
+ 1 => array(
+ array(1,0,0,0,1,0,0,0,0,0,0,0,0,0,0),
+ array(1,0,0,0,0,1,0,0,0,0,0,0,0,0,0),
+ array(1,0,0,0,0,0,0,0,0,0,0,0,0,0,0),
+ array(1,0,0,0,0,1,0,0,0,0,0,0,1,0,0),
+ array(1,0,0,0,0,0,1,0,0,0,0,1,0,0,0),
+ ),
+ 2 => array(
+ array(1,1,mt_rand(0,1),1,0,1,1,1,1,0,0,0,0,0,0),
+ array(0,0,0,0,0,0,0,1,0,0,0,0,0,0,0),
+ array(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0),
+ array(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0),
+ array(0,0,0,0,0,0,0,0,0,1,1,0,1,1,1),
+ ),
+ 3 => array(
+ array(1,0,0,0,0,0,0,0,0,0,0,0,0,0,1),
+ array(1,0,0,0,0,0,0,0,0,0,0,0,0,1,0),
+ array(0,0,0,0,1,0,0,0,0,0,0,0,0,0,1),
+ array(1,0,0,0,0,0,0,0,0,0,0,0,0,1,0),
+ array(1,0,0,0,0,0,0,0,0,0,0,0,0,0,1),
+ ),
+ 4 => array(
+ array(1,0,1,0,1,0,0,1,1,0,0,0,0,0,0),
+ array(0,0,0,0,0,0,0,1,0,0,0,0,0,0,0),
+ array(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0),
+ array(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0),
+ array(1,0,1,0,0,0,0,0,0,0,0,0,0,0,0),
+ ),
+ 5 => array(
+ array(1,1,1,1,0,0,0,1,1,1,0,0,1,0,1),
+ array(0,0,0,0,0,0,0,1,0,0,0,0,0,0,0),
+ array(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0),
+ array(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0),
+ array(1,0,1,0,0,0,0,0,0,0,0,0,0,0,0),
+ ),
+ 6 => array(
+ array(mt_rand(0,1),mt_rand(0,1),mt_rand(0,1),mt_rand(0,1),mt_rand(0,1),0,mt_rand(0,1),mt_rand(0,1),mt_rand(0,1),mt_rand(0,1),mt_rand(0,1),0,mt_rand(0,1),mt_rand(0,1),mt_rand(0,1)),
+ array(0,0,0,0,0,0,0,mt_rand(0,1),0,0,0,0,0,0,0),
+ array(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0),
+ array(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0),
+ array(mt_rand(0,1),0,mt_rand(0,1),0,0,0,0,0,0,0,0,0,0,0,0),
+ ),
+ 7 => array(
+ array(0,0,0,0,0,0,0,0,0,0,1,1,0,1,1),
+ array(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0),
+ array(0,0,1,1,0,0,0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,1,0,0,0,0,0,0,0,0,0),
+ array(1,0,0,0,0,0,0,0,0,0,0,0,0,0,0),
+ ),
+ ));
+ }
+
+ /**
+ * Return bitmaps
+ */
+ function captcha_bitmaps()
+ {
+ global $config;
+
+ $chars = array(
+ 'A' => array(
+ array(
+ array(0,0,0,0,1,0,0,0,0),
+ array(0,0,0,1,0,1,0,0,0),
+ array(0,0,0,1,0,1,0,0,0),
+ array(0,0,0,1,0,1,0,0,0),
+ array(0,0,1,0,0,0,1,0,0),
+ array(0,0,1,0,0,0,1,0,0),
+ array(0,0,1,0,0,0,1,0,0),
+ array(0,1,0,0,0,0,0,1,0),
+ array(0,1,0,0,0,0,0,1,0),
+ array(0,1,1,1,1,1,1,1,0),
+ 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(
+ array(0,0,0,0,0,0,0,0,0),
+ array(0,0,0,0,0,0,0,0,0),
+ array(0,0,0,0,1,0,0,0,0),
+ array(0,0,0,1,0,1,0,0,0),
+ array(0,0,1,1,0,1,1,0,0),
+ array(0,0,1,0,0,0,1,0,0),
+ array(0,1,0,0,0,0,0,1,0),
+ array(0,1,0,0,0,0,0,1,0),
+ array(0,1,1,1,1,1,1,1,0),
+ 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(1,1,1,0,0,0,1,1,1),
+ ),
+ array(
+ 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(0,0,1,1,1,1,1,0,0),
+ array(0,1,1,0,0,0,1,1,0),
+ array(1,1,0,0,0,0,0,1,1),
+ array(1,0,0,0,0,0,0,0,1),
+ array(0,0,0,0,0,0,0,1,1),
+ array(0,0,0,0,0,1,1,1,1),
+ array(0,0,0,1,1,1,0,0,1),
+ array(0,1,1,1,0,0,0,0,1),
+ array(1,0,0,0,0,0,0,0,1),
+ array(1,1,0,0,0,0,1,1,1),
+ array(0,1,1,1,1,1,1,0,1),
+ ),
+ ),
+ 'B' => array(
+ 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(1,0,0,0,0,0,0,1,0),
+ 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(1,0,0,0,0,0,0,1,0),
+ array(1,1,1,1,1,1,1,0,0),
+ ),
+ array(
+ array(1,1,1,1,1,1,1,0,0),
+ array(0,1,0,0,0,0,0,1,0),
+ 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(0,1,0,0,0,0,0,0,1),
+ array(0,1,0,0,0,0,0,1,0),
+ array(0,1,1,1,1,1,1,0,0),
+ array(0,1,0,0,0,0,0,1,0),
+ 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(0,1,0,0,0,0,0,0,1),
+ array(0,1,0,0,0,0,0,1,0),
+ array(1,1,1,1,1,1,1,0,0),
+ ),
+ array(
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,1,1,1,1,1,0,0),
+ array(0,1,0,0,0,0,0,1,0),
+ 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(0,1,0,0,0,0,0,0,1),
+ array(0,1,0,0,0,0,0,1,0),
+ array(0,1,1,1,1,1,1,0,0),
+ ),
+ ),
+ 'C' => array(
+ 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(1,0,0,0,0,0,0,0,0),
+ 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(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(
+ array(0,0,1,1,1,1,1,0,1),
+ array(0,1,0,0,0,0,0,1,1),
+ array(1,0,0,0,0,0,0,0,1),
+ array(1,0,0,0,0,0,0,0,1),
+ array(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(1,0,0,0,0,0,0,0,1),
+ array(1,0,0,0,0,0,0,0,1),
+ array(0,1,0,0,0,0,0,1,1),
+ array(0,0,1,1,1,1,1,0,1),
+ ),
+ ),
+ 'D' => array(
+ 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(1,0,0,0,0,0,0,0,1),
+ 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(
+ array(1,1,1,1,1,1,1,0,0),
+ array(0,1,0,0,0,0,0,1,0),
+ 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(0,1,0,0,0,0,0,0,1),
+ array(0,1,0,0,0,0,0,0,1),
+ array(0,1,0,0,0,0,0,0,1),
+ array(0,1,0,0,0,0,0,0,1),
+ array(0,1,0,0,0,0,0,0,1),
+ array(0,1,0,0,0,0,0,0,1),
+ array(0,1,0,0,0,0,0,0,1),
+ array(0,1,0,0,0,0,0,0,1),
+ array(0,1,0,0,0,0,0,1,0),
+ array(1,1,1,1,1,1,1,0,0),
+ ),
+ array(
+ 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(0,0,0,0,0,0,0,0,1),
+ array(0,0,1,1,1,1,1,0,1),
+ array(0,1,1,0,0,0,1,1,1),
+ array(0,1,0,0,0,0,0,0,1),
+ array(0,1,0,0,0,0,0,0,1),
+ array(0,1,0,0,0,0,0,0,1),
+ array(0,1,0,0,0,0,0,0,1),
+ array(0,1,1,0,0,0,1,1,1),
+ array(0,0,1,1,1,1,1,0,1),
+ ),
+ ),
+ 'E' => array(
+ 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(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(1,1,1,1,1,1,1,1,0),
+ 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(1,1,1,1,1,1,1,1,1),
+ ),
+ array(
+ array(1,1,1,1,1,1,1,1,1),
+ 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(1,0,0,0,0,0,0,0,0),
+ 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(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(1,1,1,1,1,1,1,1,1),
+ ),
+ array(
+ 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),
+ array(0,0,0,0,0,0,0,0,0),
+ array(0,0,0,0,0,0,0,0,0),
+ array(0,0,1,1,1,1,1,0,0),
+ array(0,1,1,0,0,0,1,1,0),
+ array(1,1,0,0,0,0,0,1,1),
+ array(1,1,1,1,1,1,1,1,1),
+ array(1,0,0,0,0,0,0,0,0),
+ array(1,0,0,0,0,0,0,0,1),
+ array(1,1,0,0,0,0,0,1,1),
+ array(0,1,1,1,1,1,1,1,0),
+ ),
+ ),
+ 'F' => array(
+ 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(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(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(
+ array(0,1,1,1,1,1,1,1,1),
+ array(0,1,0,0,0,0,0,0,1),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,1,1,1,1,1,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(1,1,1,0,0,0,0,0,0),
+ ),
+ array(
+ array(0,0,0,1,1,0,0,0,0),
+ array(0,0,1,1,0,0,0,0,0),
+ array(0,1,1,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(1,1,1,1,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ ),
+ ),
+ 'G' => array(
+ 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(1,0,0,0,0,0,1,1,1),
+ 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(
+ array(0,0,1,1,1,1,1,0,1),
+ array(0,1,0,0,0,0,0,1,1),
+ array(1,0,0,0,0,0,0,0,1),
+ array(1,0,0,0,0,0,0,0,0),
+ 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(1,0,0,0,1,1,1,1,1),
+ array(1,0,0,0,1,0,0,0,1),
+ array(1,0,0,0,1,0,0,0,1),
+ array(1,0,0,0,0,0,0,0,1),
+ array(1,0,0,0,0,0,0,0,1),
+ array(0,1,0,0,0,0,0,1,1),
+ array(0,0,1,1,1,1,1,0,1),
+ ),
+ array(
+ array(0,0,1,1,1,1,1,0,1),
+ array(0,1,1,0,0,0,0,1,1),
+ array(1,1,0,0,0,0,0,1,1),
+ array(1,0,0,0,0,0,0,0,1),
+ array(1,0,0,0,0,0,0,0,1),
+ array(1,1,1,0,0,0,0,0,1),
+ array(0,0,1,1,1,1,1,1,1),
+ 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(0,0,0,0,0,0,0,1,1),
+ array(1,1,1,1,1,1,1,1,0),
+ array(0,0,0,0,0,0,0,0,0),
+ array(0,0,0,0,0,0,0,0,0),
+ ),
+ ),
+ 'H' => array(
+ 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(1,1,1,1,1,1,1,1,1),
+ 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(
+ array(1,1,1,0,0,0,1,1,1),
+ 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(0,1,0,0,0,0,0,1,0),
+ array(0,1,1,1,1,1,1,1,0),
+ 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(0,1,0,0,0,0,0,1,0),
+ array(1,1,1,0,0,0,1,1,1),
+ ),
+ 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(1,0,0,1,1,1,0,0,0),
+ array(1,1,1,1,0,1,1,0,0),
+ 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(1,0,0,0,0,0,1,0,0),
+ ),
+ ),
+ 'I' => array(
+ 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(0,0,0,0,1,0,0,0,0),
+ array(0,0,0,0,1,0,0,0,0),
+ array(0,0,0,0,1,0,0,0,0),
+ array(1,1,1,1,1,1,1,1,1),
+ ),
+ array(
+ array(0,0,0,1,1,1,0,0,0),
+ 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(0,0,0,0,1,0,0,0,0),
+ 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(0,0,0,1,1,1,0,0,0),
+ ),
+ array(
+ 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(0,0,0,0,1,0,0,0,0),
+ array(0,0,0,1,1,1,0,0,0),
+ array(0,0,0,0,1,0,0,0,0),
+ array(0,0,0,0,0,0,0,0,0),
+ array(0,0,0,0,1,0,0,0,0),
+ 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(0,0,0,1,1,1,0,0,0),
+ ),
+ ),
+ 'J' => array(
+ array(
+ array(1,1,1,1,1,1,1,1,1),
+ array(0,0,0,0,0,1,0,0,0),
+ array(0,0,0,0,0,1,0,0,0),
+ array(0,0,0,0,0,1,0,0,0),
+ array(0,0,0,0,0,1,0,0,0),
+ array(0,0,0,0,0,1,0,0,0),
+ array(0,0,0,0,0,1,0,0,0),
+ array(0,0,0,0,0,1,0,0,0),
+ array(0,0,0,0,0,1,0,0,0),
+ array(0,0,0,0,0,1,0,0,0),
+ array(0,0,0,0,0,1,0,0,0),
+ array(1,0,0,0,0,1,0,0,0),
+ array(1,0,0,0,0,1,0,0,0),
+ array(0,1,0,0,1,0,0,0,0),
+ array(0,0,1,1,0,0,0,0,0),
+ ),
+ array(
+ array(1,1,1,1,1,1,1,1,1),
+ array(0,0,0,0,0,1,0,0,0),
+ array(0,0,0,0,0,1,0,0,0),
+ array(0,0,0,0,0,1,0,0,0),
+ array(0,0,0,0,0,1,0,0,0),
+ array(0,0,0,0,0,1,0,0,0),
+ array(0,0,0,0,0,1,0,0,0),
+ array(0,0,0,0,0,1,0,0,0),
+ array(0,0,0,0,0,1,0,0,0),
+ array(0,0,0,0,0,1,0,0,0),
+ array(0,0,0,0,0,1,0,0,0),
+ array(1,0,0,0,0,1,0,0,0),
+ array(1,0,0,0,0,1,0,0,0),
+ array(1,1,0,0,1,0,0,0,0),
+ array(1,0,1,1,0,0,0,0,0),
+ ),
+ array(
+ 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(0,0,0,0,0,1,0,0,0),
+ array(0,0,0,0,0,0,0,0,0),
+ array(0,0,0,0,0,1,0,0,0),
+ array(0,0,0,0,0,1,0,0,0),
+ array(0,0,0,0,0,1,0,0,0),
+ array(0,0,0,0,0,1,0,0,0),
+ array(0,0,0,0,0,1,0,0,0),
+ array(1,0,0,0,0,1,0,0,0),
+ array(1,0,0,0,0,1,0,0,0),
+ array(0,1,0,0,1,0,0,0,0),
+ array(0,0,1,1,0,0,0,0,0),
+ ),
+ ),
+ 'K' => array(
+ array( // New 'K', supplied by NeoThermic
+ array(1,0,0,0,0,0,0,0,1),
+ array(1,0,0,0,0,0,0,1,0),
+ 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(1,0,0,0,0,0,0,1,0),
+ array(1,0,0,0,0,0,0,0,1),
+ ),
+ array(
+ array(0,1,0,0,0,0,0,0,1),
+ array(0,1,0,0,0,0,0,1,0),
+ array(0,1,0,0,0,0,1,0,0),
+ array(0,1,0,0,0,1,0,0,0),
+ array(0,1,0,0,1,0,0,0,0),
+ array(0,1,0,1,0,0,0,0,0),
+ array(0,1,1,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,1,0,0,0,0,0,0),
+ array(0,1,0,1,0,0,0,0,0),
+ array(0,1,0,0,1,0,0,0,0),
+ array(0,1,0,0,0,1,0,0,0),
+ array(0,1,0,0,0,0,1,0,0),
+ array(0,1,0,0,0,0,0,1,0),
+ array(1,1,1,0,0,0,1,1,1),
+ ),
+ array(
+ array(0,0,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,1,0,0,0),
+ array(0,1,0,0,1,0,0,0,0),
+ array(0,1,0,1,0,0,0,0,0),
+ array(0,1,1,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,1,0,0,0,0,0,0),
+ array(0,1,0,1,0,0,0,0,0),
+ array(0,1,0,0,1,0,0,0,0),
+ array(0,1,0,0,0,1,0,0,0),
+ array(0,1,0,0,0,0,1,0,0),
+ array(0,1,0,0,0,0,0,1,0),
+ array(0,1,0,0,0,0,0,1,0),
+ ),
+ ),
+ 'L' => array(
+ array(
+ array(0,0,0,0,0,0,0,0,0),
+ 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(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(1,1,1,1,1,1,1,1,1),
+ ),
+ array(
+ array(0,0,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,1),
+ array(1,1,1,1,1,1,1,1,1),
+ ),
+ array(
+ array(0,0,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,1,0,0,0,0,0,0),
+ array(0,0,1,1,1,0,0,0,0),
+ ),
+ ),
+ 'M' => array(
+ array(
+ array(1,1,0,0,0,0,0,1,1),
+ array(1,1,0,0,0,0,0,1,1),
+ array(1,0,1,0,0,0,1,0,1),
+ array(1,0,1,0,0,0,1,0,1),
+ array(1,0,1,0,0,0,1,0,1),
+ array(1,0,0,1,0,1,0,0,1),
+ array(1,0,0,1,0,1,0,0,1),
+ array(1,0,0,1,0,1,0,0,1),
+ array(1,0,0,0,1,0,0,0,1),
+ array(1,0,0,0,1,0,0,0,1),
+ 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(
+ array(0,0,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,1,0),
+ array(0,1,1,0,0,0,1,1,0),
+ array(0,1,1,0,0,0,1,1,0),
+ array(0,1,1,0,0,0,1,1,0),
+ array(0,1,0,1,0,1,0,1,0),
+ array(0,1,0,1,0,1,0,1,0),
+ array(0,1,0,1,0,1,0,1,0),
+ array(0,1,0,0,1,0,0,1,0),
+ array(0,1,0,0,1,0,0,1,0),
+ 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(1,1,1,0,0,0,1,1,1),
+ ),
+ array(
+ 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),
+ array(0,0,0,0,0,0,0,0,0),
+ array(0,1,1,1,0,1,1,1,0),
+ array(1,1,0,1,1,1,0,1,1),
+ array(1,0,0,0,1,0,0,0,1),
+ array(1,0,0,0,1,0,0,0,1),
+ array(1,0,0,0,1,0,0,0,1),
+ array(1,0,0,0,1,0,0,0,1),
+ array(1,0,0,0,1,0,0,0,1),
+ array(1,0,0,0,1,0,0,0,1),
+ array(1,0,0,0,1,0,0,0,1),
+ ),
+ ),
+ 'N' => array(
+ array(
+ array(1,1,0,0,0,0,0,0,1),
+ array(1,1,0,0,0,0,0,0,1),
+ array(1,0,1,0,0,0,0,0,1),
+ array(1,0,1,0,0,0,0,0,1),
+ array(1,0,0,1,0,0,0,0,1),
+ array(1,0,0,1,0,0,0,0,1),
+ array(1,0,0,0,1,0,0,0,1),
+ array(1,0,0,0,1,0,0,0,1),
+ array(1,0,0,0,1,0,0,0,1),
+ array(1,0,0,0,0,1,0,0,1),
+ array(1,0,0,0,0,1,0,0,1),
+ array(1,0,0,0,0,0,1,0,1),
+ array(1,0,0,0,0,0,1,0,1),
+ array(1,0,0,0,0,0,0,1,1),
+ array(1,0,0,0,0,0,0,1,1),
+ ),
+ array(
+ array(0,0,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,1,0),
+ array(0,1,1,0,0,0,0,1,0),
+ array(0,1,1,0,0,0,0,1,0),
+ array(0,1,1,0,0,0,0,1,0),
+ array(0,1,0,1,0,0,0,1,0),
+ array(0,1,0,1,0,0,0,1,0),
+ array(0,1,0,1,0,0,0,1,0),
+ array(0,1,0,0,1,0,0,1,0),
+ array(0,1,0,0,1,1,0,1,0),
+ array(0,1,0,0,0,1,0,1,0),
+ array(0,1,0,0,0,1,1,1,0),
+ array(0,1,0,0,0,0,1,1,0),
+ array(0,1,0,0,0,0,0,1,0),
+ array(1,1,1,0,0,0,1,1,1),
+ ),
+ array(
+ 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),
+ array(0,0,0,0,0,0,0,0,0),
+ array(0,0,0,0,0,0,0,0,0),
+ array(1,0,1,1,1,1,0,0,0),
+ array(1,1,1,0,0,1,1,0,0),
+ 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(1,0,0,0,0,0,1,0,0),
+ ),
+ ),
+ 'O' => array(
+ 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(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(
+ array(0,0,1,1,1,1,1,0,0),
+ array(0,1,0,0,0,0,0,1,0),
+ array(1,1,0,0,0,0,0,1,1),
+ array(1,1,0,0,0,0,0,1,1),
+ array(1,1,0,0,0,0,0,1,1),
+ array(1,1,0,0,0,0,0,1,1),
+ array(1,1,0,0,0,0,0,1,1),
+ array(1,1,0,0,0,0,0,1,1),
+ array(1,1,0,0,0,0,0,1,1),
+ array(1,1,0,0,0,0,0,1,1),
+ array(1,1,0,0,0,0,0,1,1),
+ array(1,1,0,0,0,0,0,1,1),
+ array(1,1,0,0,0,0,0,1,1),
+ array(0,1,0,0,0,0,0,1,0),
+ array(0,0,1,1,1,1,1,0,0),
+ ),
+ array(
+ 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),
+ array(0,0,0,0,0,0,0,0,0),
+ array(0,0,0,0,0,0,0,0,0),
+ array(0,1,1,1,1,1,0,0,0),
+ array(1,1,1,0,0,1,1,0,0),
+ 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(1,1,0,0,0,1,1,0,0),
+ array(0,1,1,1,1,1,0,0,0),
+ ),
+ ),
+ 'P' => array(
+ 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(1,0,0,0,0,0,0,1,0),
+ 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(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(
+ array(1,1,1,1,1,1,1,0,0),
+ array(0,1,0,0,0,0,0,1,0),
+ 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(0,1,0,0,0,0,0,0,1),
+ array(0,1,0,0,0,0,0,1,0),
+ array(1,1,1,1,1,1,1,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(1,1,1,0,0,0,0,0,0),
+ ),
+ array(
+ array(0,0,0,0,0,0,0,0,0),
+ array(0,0,0,0,0,0,0,0,0),
+ array(1,0,0,0,0,0,0,0,0),
+ array(1,0,1,1,0,0,0,0,0),
+ array(1,1,0,1,1,0,0,0,0),
+ array(1,0,0,0,1,0,0,0,0),
+ array(1,0,0,0,1,0,0,0,0),
+ array(1,0,0,1,1,0,0,0,0),
+ array(1,1,1,1,0,0,0,0,0),
+ 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),
+ ),
+ ),
+ 'Q' => array(
+ 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(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(1,0,0,0,0,1,0,0,1),
+ array(1,0,0,0,0,0,1,0,1),
+ array(0,1,0,0,0,0,0,1,0),
+ array(0,0,1,1,1,1,1,0,1),
+ ),
+ 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(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(1,1,0,0,1,1,0,1,1),
+ array(0,1,1,1,1,1,1,1,0),
+ array(0,0,0,0,0,0,1,1,0),
+ array(0,0,0,0,0,0,0,1,1),
+ array(0,0,0,0,0,0,0,0,1),
+ ),
+ array(
+ 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(0,0,0,0,0,1,1,1,1),
+ array(0,0,0,0,1,1,0,0,1),
+ array(0,0,0,0,1,0,0,0,1),
+ array(0,0,0,0,1,0,0,0,1),
+ array(0,0,0,0,1,1,0,1,1),
+ array(0,0,0,0,0,1,1,0,1),
+ array(0,0,0,0,0,0,0,0,1),
+ array(0,0,0,0,0,0,0,0,1),
+ array(0,0,0,0,0,0,0,0,1),
+ 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),
+ ),
+ ),
+ 'R' => array(
+ 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(1,0,0,0,0,0,0,1,0),
+ array(1,1,1,1,1,1,1,0,0),
+ array(1,1,1,0,0,0,0,0,0),
+ 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(1,0,0,0,0,0,0,1,0),
+ array(1,0,0,0,0,0,0,0,1),
+ ),
+ array(
+ array(1,1,1,1,1,1,1,0,0),
+ array(0,1,0,0,0,0,0,1,0),
+ 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(0,1,0,0,0,0,0,0,1),
+ array(0,1,0,0,0,0,0,1,0),
+ array(1,1,1,1,1,1,1,0,0),
+ array(0,1,1,0,0,0,0,0,0),
+ array(0,1,1,1,0,0,0,0,0),
+ array(0,1,0,1,1,0,0,0,0),
+ array(0,1,0,0,1,1,0,0,0),
+ array(0,1,0,0,0,1,1,0,0),
+ array(0,1,0,0,0,0,1,1,0),
+ array(1,1,1,0,0,0,1,1,1),
+ ),
+ array(
+ 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),
+ array(0,0,0,0,0,0,0,0,0),
+ array(1,0,0,0,0,0,0,0,0),
+ array(1,1,1,1,1,0,0,0,0),
+ array(1,1,0,0,1,1,0,0,0),
+ 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),
+ ),
+ ),
+ 'S' => array(
+ 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(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(0,0,0,0,0,0,0,0,1),
+ 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(
+ array(0,0,1,1,1,1,1,0,1),
+ array(0,1,0,0,0,0,0,1,1),
+ array(1,0,0,0,0,0,0,0,1),
+ array(1,0,0,0,0,0,0,0,1),
+ array(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(1,0,0,0,0,0,0,0,1),
+ array(1,0,0,0,0,0,0,0,1),
+ array(1,1,0,0,0,0,0,1,0),
+ array(1,0,1,1,1,1,1,0,0),
+ ),
+ array(
+ 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),
+ array(0,0,0,0,0,0,0,0,0),
+ array(0,0,0,0,0,0,0,0,0),
+ array(0,1,1,1,1,0,0,0,0),
+ array(1,0,0,0,0,1,0,0,0),
+ array(1,0,0,0,0,0,0,0,0),
+ array(1,1,0,0,0,0,0,0,0),
+ array(0,1,1,1,1,0,0,0,0),
+ array(0,0,0,0,0,1,0,0,0),
+ array(1,0,0,0,1,1,0,0,0),
+ array(0,1,1,1,1,0,0,0,0),
+ ),
+ ),
+ 'T' => array(
+ 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(0,0,0,0,1,0,0,0,0),
+ 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(
+ array(1,1,1,1,1,1,1,1,1),
+ array(1,0,0,0,1,0,0,0,1),
+ 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(0,0,0,0,1,0,0,0,0),
+ array(0,0,0,0,1,0,0,0,0),
+ array(0,0,0,1,1,1,0,0,0),
+ ),
+ array(
+ 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(0,0,1,1,1,1,1,1,0),
+ 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(0,0,0,0,1,0,0,0,0),
+ array(0,0,0,0,1,1,0,0,0),
+ array(0,0,0,0,0,1,1,1,0),
+ ),
+ ),
+ 'U' => array(
+ 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(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(
+ array(1,0,0,0,0,0,0,0,0),
+ array(1,1,1,0,0,0,1,1,1),
+ 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(0,1,0,0,0,0,0,1,0),
+ 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(0,1,0,0,0,0,0,1,0),
+ array(0,1,1,0,0,0,1,1,0),
+ array(0,0,1,1,1,1,1,0,0),
+ ),
+ array(
+ 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),
+ array(0,0,0,0,0,0,0,0,0),
+ array(0,0,0,0,0,0,0,0,0),
+ array(0,0,1,0,0,0,0,0,1),
+ array(0,0,1,0,0,0,0,0,1),
+ array(0,0,1,0,0,0,0,0,1),
+ array(0,0,1,0,0,0,0,0,1),
+ array(0,0,1,0,0,0,0,0,1),
+ array(0,0,1,0,0,0,0,1,1),
+ array(0,0,1,1,0,0,1,1,1),
+ array(0,0,0,1,1,1,1,0,1),
+ ),
+ ),
+ 'V' => array(
+ 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(0,1,0,0,0,0,0,1,0),
+ array(0,1,0,0,0,0,0,1,0),
+ array(0,0,1,0,0,0,1,0,0),
+ array(0,0,1,0,0,0,1,0,0),
+ array(0,0,1,0,0,0,1,0,0),
+ array(0,0,1,0,0,0,1,0,0),
+ array(0,0,0,1,0,1,0,0,0),
+ array(0,0,0,1,0,1,0,0,0),
+ 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(
+ 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(1,1,1,0,0,0,1,1,1),
+ array(0,1,0,0,0,0,0,1,0),
+ array(0,1,0,0,0,0,0,1,0),
+ array(0,0,1,0,0,0,1,0,0),
+ array(0,0,1,0,0,0,1,0,0),
+ array(0,0,1,0,0,0,1,0,0),
+ array(0,0,1,0,0,0,1,0,0),
+ array(0,0,0,1,0,1,0,0,0),
+ array(0,0,0,1,0,1,0,0,0),
+ 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(
+ 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),
+ array(0,0,0,0,0,0,0,0,0),
+ array(0,0,1,0,0,0,1,0,0),
+ array(0,0,1,0,0,0,1,0,0),
+ array(0,0,1,0,0,0,1,0,0),
+ array(0,0,1,0,0,0,1,0,0),
+ array(0,0,0,1,0,1,0,0,0),
+ array(0,0,0,1,0,1,0,0,0),
+ 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),
+ ),
+ ),
+ 'W' => array(
+ 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(1,0,0,0,1,0,0,0,1),
+ array(1,0,0,0,1,0,0,0,1),
+ array(1,0,0,1,0,1,0,0,1),
+ array(1,0,0,1,0,1,0,0,1),
+ array(1,0,0,1,0,1,0,0,1),
+ array(1,0,1,0,0,0,1,0,1),
+ array(1,0,1,0,0,0,1,0,1),
+ array(1,0,1,0,0,0,1,0,1),
+ array(1,1,0,0,0,0,0,1,1),
+ array(1,1,0,0,0,0,0,1,1),
+ ),
+ array(
+ array(0,0,0,0,0,0,0,0,0),
+ array(0,0,0,0,0,0,0,0,0),
+ array(1,1,1,0,0,0,1,1,1),
+ 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(0,1,0,0,1,0,0,1,0),
+ array(0,1,0,0,1,0,0,1,0),
+ array(0,1,0,1,1,1,0,1,0),
+ array(0,1,0,1,0,1,0,1,0),
+ array(0,1,1,1,0,1,1,1,0),
+ array(0,1,1,0,0,0,1,1,0),
+ array(0,1,0,0,0,0,0,1,0),
+ array(0,0,0,0,0,0,0,0,0),
+ ),
+ array(
+ 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),
+ array(0,0,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,1,0),
+ array(0,1,0,0,1,0,0,1,0),
+ array(0,1,0,0,1,0,0,1,0),
+ array(0,1,0,1,1,1,0,1,0),
+ array(0,1,0,1,0,1,0,1,0),
+ array(0,1,1,1,0,1,1,1,0),
+ array(0,1,1,0,0,0,1,1,0),
+ array(0,1,0,0,0,0,0,1,0),
+ array(0,0,0,0,0,0,0,0,0),
+ ),
+ ),
+ 'X' => array(
+ 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(0,1,0,0,0,0,0,1,0),
+ array(0,0,1,0,0,0,1,0,0),
+ array(0,0,0,1,0,1,0,0,0),
+ array(0,0,0,1,0,1,0,0,0),
+ array(0,0,0,0,1,0,0,0,0),
+ array(0,0,0,1,0,1,0,0,0),
+ array(0,0,0,1,0,1,0,0,0),
+ array(0,0,1,0,0,0,1,0,0),
+ array(0,1,0,0,0,0,1,0,0),
+ 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(
+ array(0,0,0,0,0,0,0,0,0),
+ array(1,1,1,0,0,0,1,1,1),
+ array(0,1,0,0,0,0,0,1,0),
+ 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(0,0,0,1,0,1,0,0,0),
+ array(0,0,0,0,1,0,0,0,0),
+ array(0,0,0,1,0,1,0,0,0),
+ array(0,0,0,1,0,1,0,0,0),
+ array(0,0,1,0,0,0,1,0,0),
+ array(0,1,0,0,0,0,1,0,0),
+ array(0,1,0,0,0,0,0,1,0),
+ array(1,1,1,0,0,0,1,1,1),
+ array(0,0,0,0,0,0,0,0,0),
+ ),
+ array(
+ 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),
+ array(0,0,0,0,0,0,0,0,0),
+ array(0,0,0,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,1,0),
+ array(0,1,1,0,0,0,1,1,0),
+ array(0,0,1,1,0,1,1,0,0),
+ array(0,0,0,1,1,1,0,0,0),
+ array(0,0,0,1,1,1,0,0,0),
+ array(0,0,1,1,0,1,1,0,0),
+ array(0,1,1,0,0,0,1,1,0),
+ array(0,0,0,0,0,0,0,0,0),
+ ),
+ ),
+ 'Y' => array(
+ 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(0,1,0,0,0,0,0,1,0),
+ array(0,0,1,0,0,0,1,0,0),
+ 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(0,0,0,0,1,0,0,0,0),
+ array(0,0,0,0,1,0,0,0,0),
+ array(0,0,0,0,1,0,0,0,0),
+ ),
+ array(
+ array(0,0,0,0,0,0,0,0,0),
+ array(1,1,1,0,0,0,1,1,1),
+ array(0,1,0,0,0,0,0,1,0),
+ array(0,1,0,0,0,0,0,1,0),
+ array(0,0,1,0,0,0,1,0,0),
+ 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(0,0,0,0,1,0,0,0,0),
+ array(0,0,0,0,1,0,0,0,0),
+ array(0,0,0,1,1,1,0,0,0),
+ ),
+ array(
+ 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(0,0,0,1,0,0,0,0,1),
+ array(0,0,0,1,1,0,0,0,1),
+ array(0,0,0,0,1,0,0,1,1),
+ array(0,0,0,0,1,1,0,1,0),
+ array(0,0,0,0,0,1,1,1,0),
+ array(0,0,0,0,0,0,1,0,0),
+ array(0,0,0,0,0,1,1,0,0),
+ array(0,0,0,0,0,1,0,0,0),
+ array(0,0,0,0,1,1,0,0,0),
+ array(0,0,1,1,1,0,0,0,0),
+ array(0,0,0,0,0,0,0,0,0),
+ ),
+ ),
+ 'Z' => array(
+ array(
+ array(1,1,1,1,1,1,1,1,1),
+ array(1,0,0,0,0,0,0,0,1),
+ array(0,0,0,0,0,0,0,0,1),
+ 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(0,0,0,0,0,1,0,0,0),
+ array(0,0,0,0,1,0,0,0,0),
+ array(0,0,0,1,0,0,0,0,0),
+ array(0,0,0,1,0,0,0,0,0),
+ array(0,0,1,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(1,0,0,0,0,0,0,0,0),
+ array(1,0,0,0,0,0,0,0,1),
+ array(1,1,1,1,1,1,1,1,1),
+ ),
+ array(
+ array(1,1,1,1,1,1,1,1,1),
+ array(0,0,0,0,0,0,0,0,1),
+ array(0,0,0,0,0,0,0,0,1),
+ array(0,0,0,0,0,0,0,1,0),
+ array(0,0,0,0,0,0,1,0,0),
+ array(0,0,0,0,0,1,0,0,0),
+ array(0,0,0,0,0,1,0,0,0),
+ array(0,0,1,1,1,1,1,0,0),
+ array(0,0,0,1,0,0,0,0,0),
+ 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(1,0,0,0,0,0,0,0,0),
+ array(1,0,0,0,0,0,0,0,0),
+ array(1,1,1,1,1,1,1,1,1),
+ ),
+ array(
+ 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),
+ 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(0,1,1,1,1,1,1,1,0),
+ array(0,0,0,0,0,1,1,0,0),
+ array(0,0,0,0,1,1,0,0,0),
+ array(0,0,0,1,1,0,0,0,0),
+ array(0,0,1,1,0,0,0,0,0),
+ array(0,0,1,0,0,0,0,0,0),
+ array(0,1,1,1,1,1,1,1,0),
+ ),
+ ),
+ );
+ return array(
+ 'width' => 9,
+ 'height' => 15,
+ 'data' => array(
+
+ 'A' => $chars['A'][mt_rand(0, min(sizeof($chars['A']), $config['captcha_gd_fonts']) -1)],
+ 'B' => $chars['B'][mt_rand(0, min(sizeof($chars['B']), $config['captcha_gd_fonts']) -1)],
+ 'C' => $chars['C'][mt_rand(0, min(sizeof($chars['C']), $config['captcha_gd_fonts']) -1)],
+ 'D' => $chars['D'][mt_rand(0, min(sizeof($chars['D']), $config['captcha_gd_fonts']) -1)],
+ 'E' => $chars['E'][mt_rand(0, min(sizeof($chars['E']), $config['captcha_gd_fonts']) -1)],
+ 'F' => $chars['F'][mt_rand(0, min(sizeof($chars['F']), $config['captcha_gd_fonts']) -1)],
+ 'G' => $chars['G'][mt_rand(0, min(sizeof($chars['G']), $config['captcha_gd_fonts']) -1)],
+ 'H' => $chars['H'][mt_rand(0, min(sizeof($chars['H']), $config['captcha_gd_fonts']) -1)],
+ 'I' => $chars['I'][mt_rand(0, min(sizeof($chars['I']), $config['captcha_gd_fonts']) -1)],
+ 'J' => $chars['J'][mt_rand(0, min(sizeof($chars['J']), $config['captcha_gd_fonts']) -1)],
+ 'K' => $chars['K'][mt_rand(0, min(sizeof($chars['K']), $config['captcha_gd_fonts']) -1)],
+ 'L' => $chars['L'][mt_rand(0, min(sizeof($chars['L']), $config['captcha_gd_fonts']) -1)],
+ 'M' => $chars['M'][mt_rand(0, min(sizeof($chars['M']), $config['captcha_gd_fonts']) -1)],
+ 'N' => $chars['N'][mt_rand(0, min(sizeof($chars['N']), $config['captcha_gd_fonts']) -1)],
+ 'O' => $chars['O'][mt_rand(0, min(sizeof($chars['O']), $config['captcha_gd_fonts']) -1)],
+ 'P' => $chars['P'][mt_rand(0, min(sizeof($chars['P']), $config['captcha_gd_fonts']) -1)],
+ 'Q' => $chars['Q'][mt_rand(0, min(sizeof($chars['Q']), $config['captcha_gd_fonts']) -1)],
+ 'R' => $chars['R'][mt_rand(0, min(sizeof($chars['R']), $config['captcha_gd_fonts']) -1)],
+ 'S' => $chars['S'][mt_rand(0, min(sizeof($chars['S']), $config['captcha_gd_fonts']) -1)],
+ 'T' => $chars['T'][mt_rand(0, min(sizeof($chars['T']), $config['captcha_gd_fonts']) -1)],
+ 'U' => $chars['U'][mt_rand(0, min(sizeof($chars['U']), $config['captcha_gd_fonts']) -1)],
+ 'V' => $chars['V'][mt_rand(0, min(sizeof($chars['V']), $config['captcha_gd_fonts']) -1)],
+ 'W' => $chars['W'][mt_rand(0, min(sizeof($chars['W']), $config['captcha_gd_fonts']) -1)],
+ 'X' => $chars['X'][mt_rand(0, min(sizeof($chars['X']), $config['captcha_gd_fonts']) -1)],
+ 'Y' => $chars['Y'][mt_rand(0, min(sizeof($chars['Y']), $config['captcha_gd_fonts']) -1)],
+ 'Z' => $chars['Z'][mt_rand(0, min(sizeof($chars['Z']), $config['captcha_gd_fonts']) -1)],
+
+ '1' => array(
+ 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(0,0,0,0,1,0,0,0,0),
+ 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),
+ ),
+ '2' => array( // New '2' supplied by Anon
+ array(0,0,0,1,1,1,0,0,0),
+ array(0,0,1,0,0,0,1,0,0),
+ array(0,1,0,0,0,0,1,1,0),
+ array(0,0,0,0,0,0,0,0,1),
+ array(0,0,0,0,0,0,0,0,1),
+ array(0,0,0,0,0,0,0,1,1),
+ 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(1,1,1,1,1,1,1,1,1),
+ array(0,0,0,0,0,0,0,0,0),
+ ),
+ '3' => 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(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(0,0,0,0,0,1,1,0,0),
+ 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(0,0,0,0,0,0,0,0,1),
+ 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),
+ ),
+ '4' => array(
+ 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(0,1,0,0,0,0,0,1,0),
+ array(1,0,0,0,0,0,0,1,0),
+ array(1,0,0,0,0,0,0,1,0),
+ array(1,1,1,1,1,1,1,1,1),
+ 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(0,0,0,0,0,0,0,1,0),
+ array(0,0,0,0,0,0,0,1,0),
+ ),
+ '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(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(0,0,0,0,0,0,0,0,1),
+ 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),
+ ),
+ '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(1,0,0,0,0,0,0,0,1),
+ 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(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),
+ ),
+ '7' => array(
+ array(1,1,1,1,1,1,1,1,1),
+ array(0,0,0,0,0,0,0,0,1),
+ array(0,0,0,0,0,0,0,1,0),
+ array(0,0,0,0,0,0,0,1,0),
+ array(0,0,0,0,0,0,1,0,0),
+ array(0,0,0,0,0,1,0,0,0),
+ array(0,0,0,0,0,1,0,0,0),
+ array(0,0,0,0,1,0,0,0,0),
+ array(0,0,0,1,0,0,0,0,0),
+ array(0,0,0,1,0,0,0,0,0),
+ array(0,0,1,0,0,0,0,0,0),
+ array(0,1,0,0,0,0,0,0,0),
+ array(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),
+ ),
+ '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(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(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),
+ ),
+ '9' => 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(1,0,0,0,0,0,0,0,1),
+ array(1,0,0,0,0,0,0,1,1),
+ array(0,1,0,0,0,0,1,0,1),
+ array(0,0,1,1,1,1,0,0,1),
+ array(0,0,0,0,0,0,0,0,1),
+ array(0,0,0,0,0,0,0,0,1),
+ 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),
+ ),
+ )
+ );
+ }
+}
diff --git a/phpBB/phpbb/captcha/gd_wave.php b/phpBB/phpbb/captcha/gd_wave.php
new file mode 100644
index 0000000000..d48fc753a5
--- /dev/null
+++ b/phpBB/phpbb/captcha/gd_wave.php
@@ -0,0 +1,845 @@
+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+namespace phpbb\captcha;
+
+/**
+* Wave3D CAPTCHA
+*/
+class gd_wave
+{
+ 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 - 45, $img_x - 5),
+ 'y' => mt_rand($img_y - 15, $img_y - 0),
+ ),
+ );
+
+ $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, $x_grid, $y_grid, 1);
+
+ // 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, $x_grid, $y_grid, $factor = 1)
+ {
+ return ((!($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),
+ ),
+ )
+ );
+ }
+}
diff --git a/phpBB/phpbb/captcha/non_gd.php b/phpBB/phpbb/captcha/non_gd.php
new file mode 100644
index 0000000000..3818672f17
--- /dev/null
+++ b/phpBB/phpbb/captcha/non_gd.php
@@ -0,0 +1,386 @@
+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+namespace phpbb\captcha;
+
+/**
+* Main non-gd captcha class
+* @ignore
+*/
+class non_gd
+{
+ var $filtered_pngs;
+ var $width = 320;
+ var $height = 50;
+
+ /**
+ * Define filtered pngs on init
+ */
+ function __construct()
+ {
+ // If we can we will generate a single filtered png, we avoid nastiness via emulation of some Zlib stuff
+ $this->define_filtered_pngs();
+ }
+
+ /**
+ * Create the image containing $code with a seed of $seed
+ */
+ function execute($code, $seed)
+ {
+ $img_height = $this->height - 10;
+ $img_width = 0;
+
+ mt_srand($seed);
+
+ $char_widths = $hold_chars = array();
+ $code_len = strlen($code);
+
+ for ($i = 0; $i < $code_len; $i++)
+ {
+ $char = $code[$i];
+
+ $width = mt_rand(0, 4);
+ $raw_width = $this->filtered_pngs[$char]['width'];
+ $char_widths[$i] = $width;
+ $img_width += $raw_width - $width;
+
+ // Split the char into chunks of $raw_width + 1 length
+ if (empty($hold_chars[$char]))
+ {
+ $hold_chars[$char] = str_split(base64_decode($this->filtered_pngs[$char]['data']), $raw_width + 1);
+ }
+ }
+
+ $offset_x = mt_rand(0, $this->width - $img_width);
+ $offset_y = mt_rand(0, $this->height - $img_height);
+
+ $image = '';
+ for ($i = 0; $i < $this->height; $i++)
+ {
+ $image .= chr(0);
+
+ if ($i > $offset_y && $i < $offset_y + $img_height)
+ {
+ for ($j = 0; $j < $offset_x; $j++)
+ {
+ $image .= chr(mt_rand(140, 255));
+ }
+
+ for ($j = 0; $j < $code_len; $j++)
+ {
+ $image .= $this->randomise(substr($hold_chars[$code{$j}][$i - $offset_y - 1], 1), $char_widths[$j]);
+ }
+
+ for ($j = $offset_x + $img_width; $j < $this->width; $j++)
+ {
+ $image .= chr(mt_rand(140, 255));
+ }
+ }
+ else
+ {
+ for ($j = 0; $j < $this->width; $j++)
+ {
+ $image .= chr(mt_rand(140, 255));
+ }
+ }
+ }
+ unset($hold_chars);
+
+ $image = $this->create_png($image, $this->width, $this->height);
+
+ // Output image
+ header('Content-Type: image/png');
+ header('Cache-control: no-cache, no-store');
+ echo $image;
+ exit;
+ }
+
+ /**
+ * This is designed to randomise the pixels of the image data within
+ * certain limits so as to keep it readable. It also varies the image
+ * width a little
+ */
+ function randomise($scanline, $width)
+ {
+ $new_line = '';
+
+ $end = strlen($scanline) - ceil($width/2);
+ for ($i = (int) floor($width / 2); $i < $end; $i++)
+ {
+ $pixel = ord($scanline{$i});
+
+ if ($pixel < 190)
+ {
+ $new_line .= chr(mt_rand(0, 205));
+ }
+ else if ($pixel > 190)
+ {
+ $new_line .= chr(mt_rand(145, 255));
+ }
+ else
+ {
+ $new_line .= $scanline{$i};
+ }
+ }
+
+ return $new_line;
+ }
+
+ /**
+ * This creates a chunk of the given type, with the given data
+ * of the given length adding the relevant crc
+ */
+ function png_chunk($length, $type, $data)
+ {
+ $raw = $type . $data;
+
+ return pack('N', $length) . $raw . pack('N', crc32($raw));
+ }
+
+ /**
+ * Creates greyscale 8bit png - The PNG spec can be found at
+ * http://www.libpng.org/pub/png/spec/PNG-Contents.html we use
+ * png because it's a fully recognised open standard and supported
+ * by practically all modern browsers and OSs
+ */
+ function create_png($raw_image, $width, $height)
+ {
+ // SIG
+ $image = pack('C8', 137, 80, 78, 71, 13, 10, 26, 10);
+
+ // IHDR
+ $raw = pack('N2', $width, $height);
+ $raw .= pack('C5', 8, 0, 0, 0, 0);
+ $image .= $this->png_chunk(13, 'IHDR', $raw);
+
+ // IDAT
+ if (@extension_loaded('zlib'))
+ {
+ $raw_image = gzcompress($raw_image);
+ $length = strlen($raw_image);
+ }
+ else
+ {
+ // The total length of this image, uncompressed, is just a calculation of pixels
+ $length = ($width + 1) * $height;
+
+ // Adler-32 hash generation
+ // Note: The hash is _backwards_ so we must reverse it
+
+ if (@extension_loaded('hash'))
+ {
+ $adler_hash = strrev(hash('adler32', $raw_image, true));
+ }
+ else if (@extension_loaded('mhash'))
+ {
+ $adler_hash = strrev(mhash(MHASH_ADLER32, $raw_image));
+ }
+ else
+ {
+ // Optimized Adler-32 loop ported from the GNU Classpath project
+ $temp_length = $length;
+ $s1 = 1;
+ $s2 = $index = 0;
+
+ while ($temp_length > 0)
+ {
+ // We can defer the modulo operation:
+ // s1 maximally grows from 65521 to 65521 + 255 * 3800
+ // s2 maximally grows by 3800 * median(s1) = 2090079800 < 2^31
+ $substract_value = ($temp_length < 3800) ? $temp_length : 3800;
+ $temp_length -= $substract_value;
+
+ while (--$substract_value >= 0)
+ {
+ $s1 += ord($raw_image[$index]);
+ $s2 += $s1;
+
+ $index++;
+ }
+
+ $s1 %= 65521;
+ $s2 %= 65521;
+ }
+ $adler_hash = pack('N', ($s2 << 16) | $s1);
+ }
+
+ // This is the same thing as gzcompress($raw_image, 0) but does not need zlib
+ $raw_image = pack('C3v2', 0x78, 0x01, 0x01, $length, ~$length) . $raw_image . $adler_hash;
+
+ // The Zlib header + Adler hash make us add on 11
+ $length += 11;
+ }
+
+ // IDAT
+ $image .= $this->png_chunk($length, 'IDAT', $raw_image);
+
+ // IEND
+ $image .= $this->png_chunk(0, 'IEND', '');
+
+ return $image;
+ }
+
+ /**
+ * png image data
+ * Each 'data' element is base64_encoded uncompressed IDAT
+ */
+ function define_filtered_pngs()
+ {
+ $this->filtered_pngs = array(
+ '0' => array(
+ 'data' => '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',
+ 'width' => 40
+ ),
+ '1' => array(
+ 'data' => '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',
+ 'width' => 40
+ ),
+ '2' => array(
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+ ),
+ 'Z' => array(
+ 'data' => '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',
+ 'width' => 40
+ ),
+ );
+ }
+}
diff --git a/phpBB/phpbb/captcha/plugins/captcha_abstract.php b/phpBB/phpbb/captcha/plugins/captcha_abstract.php
new file mode 100644
index 0000000000..24ed7f939d
--- /dev/null
+++ b/phpBB/phpbb/captcha/plugins/captcha_abstract.php
@@ -0,0 +1,390 @@
+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+namespace phpbb\captcha\plugins;
+
+/**
+* This class holds the code shared by the two default 3.0.x CAPTCHAs.
+*/
+abstract class captcha_abstract
+{
+ var $confirm_id;
+ var $confirm_code;
+ var $code;
+ var $seed;
+ var $attempts = 0;
+ var $type;
+ var $solved = 0;
+ var $captcha_vars = false;
+
+ /**
+ * @var string name of the service.
+ */
+ protected $service_name;
+
+ function init($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) || !$this->load_code())
+ {
+ // 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_friendly(mt_rand(CAPTCHA_MIN_CHARS, CAPTCHA_MAX_CHARS));
+ $this->seed = hexdec(substr(unique_id(), 4, 10));
+
+ // compute $seed % 0x7fffffff
+ $this->seed -= 0x7fffffff * floor($this->seed / 0x7fffffff);
+
+ $generator = $this->get_generator_class();
+ $captcha = new $generator();
+ define('IMAGE_OUTPUT', 1);
+ $captcha->execute($this->code, $this->seed);
+ }
+
+ function execute()
+ {
+ if (empty($this->code))
+ {
+ if (!$this->load_code())
+ {
+ // invalid request, bail out
+ return false;
+ }
+ }
+ $generator = $this->get_generator_class();
+ $captcha = new $generator();
+ define('IMAGE_OUTPUT', 1);
+ $captcha->execute($this->code, $this->seed);
+ }
+
+ function get_template()
+ {
+ global $config, $user, $template, $phpEx, $phpbb_root_path;
+
+ if ($this->is_solved())
+ {
+ return false;
+ }
+ else
+ {
+ $link = append_sid($phpbb_root_path . 'ucp.' . $phpEx, 'mode=confirm&amp;confirm_id=' . $this->confirm_id . '&amp;type=' . $this->type);
+ $contact_link = phpbb_get_board_contact_link($config, $phpbb_root_path, $phpEx);
+ $explain = $user->lang(($this->type != CONFIRM_POST) ? 'CONFIRM_EXPLAIN' : 'POST_CONFIRM_EXPLAIN', '<a href="' . $contact_link . '">', '</a>');
+
+ $template->assign_vars(array(
+ 'CONFIRM_IMAGE_LINK' => $link,
+ 'CONFIRM_IMAGE' => '<img src="' . $link . '" />',
+ 'CONFIRM_IMG' => '<img src="' . $link . '" />',
+ 'CONFIRM_ID' => $this->confirm_id,
+ 'S_CONFIRM_CODE' => true,
+ 'S_TYPE' => $this->type,
+ 'S_CONFIRM_REFRESH' => ($config['enable_confirm'] && $config['confirm_refresh'] && $this->type == CONFIRM_REG) ? true : false,
+ 'L_CONFIRM_EXPLAIN' => $explain,
+ ));
+
+ return 'captcha_default.html';
+ }
+ }
+
+ function get_demo_template($id)
+ {
+ global $config, $user, $template, $phpbb_admin_path, $phpEx;
+
+ $variables = '';
+
+ if (is_array($this->captcha_vars))
+ {
+ foreach ($this->captcha_vars as $captcha_var => $template_var)
+ {
+ $variables .= '&amp;' . rawurlencode($captcha_var) . '=' . request_var($captcha_var, (int) $config[$captcha_var]);
+ }
+ }
+
+ // 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_service_name()) . $variables,
+ 'CONFIRM_ID' => $this->confirm_id,
+ ));
+
+ return 'captcha_default_acp_demo.html';
+ }
+
+ function get_hidden_fields()
+ {
+ $hidden_fields = array();
+
+ // this is required for posting.php - otherwise we would forget about the captcha being already solved
+ if ($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()
+ {
+ $this->garbage_collect(0);
+ }
+
+ function install()
+ {
+ return;
+ }
+
+ function validate()
+ {
+ global $config, $db, $user;
+
+ if (empty($user->lang))
+ {
+ $user->setup();
+ }
+
+ $error = '';
+ if (!$this->confirm_id)
+ {
+ $error = $user->lang['CONFIRM_CODE_WRONG'];
+ }
+ else
+ {
+ if ($this->check_code())
+ {
+ $this->solved = true;
+ }
+ else
+ {
+ $error = $user->lang['CONFIRM_CODE_WRONG'];
+ }
+ }
+
+ if (strlen($error))
+ {
+ // okay, incorrect answer. Let's ask a new question.
+ $this->new_attempt();
+ 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_friendly(mt_rand(CAPTCHA_MIN_CHARS, CAPTCHA_MAX_CHARS));
+ $this->confirm_id = md5(unique_id($user->ip));
+ $this->seed = hexdec(substr(unique_id(), 4, 10));
+ $this->solved = 0;
+ // 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_friendly(mt_rand(CAPTCHA_MIN_CHARS, CAPTCHA_MAX_CHARS));
+ $this->seed = hexdec(substr(unique_id(), 4, 10));
+ $this->solved = 0;
+ // 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);
+ }
+
+ /**
+ * New Question, if desired.
+ */
+ function new_attempt()
+ {
+ global $db, $user;
+
+ $this->code = gen_rand_string_friendly(mt_rand(CAPTCHA_MIN_CHARS, CAPTCHA_MAX_CHARS));
+ $this->seed = hexdec(substr(unique_id(), 4, 10));
+ $this->solved = 0;
+ // 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)) . '
+ , attempts = attempts + 1
+ 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, attempts
+ 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'];
+ $this->attempts = $row['attempts'];
+ return true;
+ }
+
+ return false;
+ }
+
+ function check_code()
+ {
+ return (strcasecmp($this->code, $this->confirm_code) === 0);
+ }
+
+ function get_attempt_count()
+ {
+ return $this->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();
+ }
+
+ function is_solved()
+ {
+ if (request_var('confirm_code', false) && $this->solved === 0)
+ {
+ $this->validate();
+ }
+ return (bool) $this->solved;
+ }
+
+ /**
+ * API function
+ */
+ function has_config()
+ {
+ return false;
+ }
+
+ /**
+ * @return string the name of the service corresponding to the plugin
+ */
+ function get_service_name()
+ {
+ return $this->service_name;
+ }
+
+ /**
+ * Set the name of the plugin
+ *
+ * @param string $name
+ */
+ public function set_name($name)
+ {
+ $this->service_name = $name;
+ }
+
+ /**
+ * @return string the name of the class used to generate the captcha
+ */
+ abstract function get_generator_class();
+}
diff --git a/phpBB/phpbb/captcha/plugins/gd.php b/phpBB/phpbb/captcha/plugins/gd.php
new file mode 100644
index 0000000000..f6200b5b2f
--- /dev/null
+++ b/phpBB/phpbb/captcha/plugins/gd.php
@@ -0,0 +1,130 @@
+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+namespace phpbb\captcha\plugins;
+
+class gd extends captcha_abstract
+{
+ var $captcha_vars = array(
+ 'captcha_gd_x_grid' => 'CAPTCHA_GD_X_GRID',
+ 'captcha_gd_y_grid' => 'CAPTCHA_GD_Y_GRID',
+ 'captcha_gd_foreground_noise' => 'CAPTCHA_GD_FOREGROUND_NOISE',
+// 'captcha_gd' => 'CAPTCHA_GD_PREVIEWED',
+ 'captcha_gd_wave' => 'CAPTCHA_GD_WAVE',
+ 'captcha_gd_3d_noise' => 'CAPTCHA_GD_3D_NOISE',
+ 'captcha_gd_fonts' => 'CAPTCHA_GD_FONTS',
+ );
+
+ public function is_available()
+ {
+ return @extension_loaded('gd');
+ }
+
+ /**
+ * @return string the name of the class used to generate the captcha
+ */
+ function get_generator_class()
+ {
+ return '\\phpbb\\captcha\\gd';
+ }
+
+ /**
+ * API function
+ */
+ function has_config()
+ {
+ return true;
+ }
+
+ public function get_name()
+ {
+ return 'CAPTCHA_GD';
+ }
+
+ function acp_page($id, &$module)
+ {
+ global $db, $user, $auth, $template;
+ global $config, $phpbb_root_path, $phpbb_admin_path, $phpEx;
+
+ $user->add_lang('acp/board');
+
+ $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))
+ {
+ $captcha_vars = array_keys($this->captcha_vars);
+ foreach ($captcha_vars as $captcha_var)
+ {
+ $value = request_var($captcha_var, 0);
+ if ($value >= 0)
+ {
+ set_config($captcha_var, $value);
+ }
+ }
+
+ add_log('admin', 'LOG_CONFIG_VISUAL');
+ trigger_error($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 ($this->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_service_name(),
+ 'U_ACTION' => $module->u_action,
+ ));
+ }
+ }
+
+ function execute_demo()
+ {
+ global $config;
+
+ $config_old = $config;
+
+ $config = new \phpbb\config\config(array());
+ foreach ($config_old as $key => $value)
+ {
+ $config->set($key, $value);
+ }
+
+ foreach ($this->captcha_vars as $captcha_var => $template_var)
+ {
+ $config->set($captcha_var, request_var($captcha_var, (int) $config[$captcha_var]));
+ }
+ parent::execute_demo();
+ $config = $config_old;
+ }
+
+}
diff --git a/phpBB/phpbb/captcha/plugins/gd_wave.php b/phpBB/phpbb/captcha/plugins/gd_wave.php
new file mode 100644
index 0000000000..e1d44df778
--- /dev/null
+++ b/phpBB/phpbb/captcha/plugins/gd_wave.php
@@ -0,0 +1,42 @@
+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+namespace phpbb\captcha\plugins;
+
+class gd_wave extends captcha_abstract
+{
+ public function is_available()
+ {
+ return @extension_loaded('gd');
+ }
+
+ public function get_name()
+ {
+ return 'CAPTCHA_GD_3D';
+ }
+
+ /**
+ * @return string the name of the class used to generate the captcha
+ */
+ function get_generator_class()
+ {
+ return '\\phpbb\\captcha\\gd_wave';
+ }
+
+ function acp_page($id, &$module)
+ {
+ global $config, $db, $template, $user;
+
+ trigger_error($user->lang['CAPTCHA_NO_OPTIONS'] . adm_back_link($module->u_action));
+ }
+}
diff --git a/phpBB/phpbb/captcha/plugins/nogd.php b/phpBB/phpbb/captcha/plugins/nogd.php
new file mode 100644
index 0000000000..6845e5935c
--- /dev/null
+++ b/phpBB/phpbb/captcha/plugins/nogd.php
@@ -0,0 +1,42 @@
+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+namespace phpbb\captcha\plugins;
+
+class nogd extends captcha_abstract
+{
+ public function is_available()
+ {
+ return true;
+ }
+
+ public function get_name()
+ {
+ return 'CAPTCHA_NO_GD';
+ }
+
+ /**
+ * @return string the name of the class used to generate the captcha
+ */
+ function get_generator_class()
+ {
+ return '\\phpbb\\captcha\\non_gd';
+ }
+
+ function acp_page($id, &$module)
+ {
+ global $user;
+
+ trigger_error($user->lang['CAPTCHA_NO_OPTIONS'] . adm_back_link($module->u_action));
+ }
+}
diff --git a/phpBB/phpbb/captcha/plugins/qa.php b/phpBB/phpbb/captcha/plugins/qa.php
new file mode 100644
index 0000000000..a7ba994cc3
--- /dev/null
+++ b/phpBB/phpbb/captcha/plugins/qa.php
@@ -0,0 +1,1009 @@
+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+namespace phpbb\captcha\plugins;
+
+/**
+* And now to something completely different. Let's make a captcha without extending the abstract class.
+* QA CAPTCHA sample implementation
+*/
+class qa
+{
+ var $confirm_id;
+ var $answer;
+ var $question_ids;
+ var $question_text;
+ var $question_lang;
+ var $question_strict;
+ var $attempts = 0;
+ var $type;
+ // dirty trick: 0 is false, but can still encode that the captcha is not yet validated
+ var $solved = 0;
+
+ protected $table_captcha_questions;
+ protected $table_captcha_answers;
+ protected $table_qa_confirm;
+
+ /**
+ * @var string name of the service.
+ */
+ protected $service_name;
+
+ /**
+ * Constructor
+ *
+ * @param string $table_captcha_questions
+ * @param string $table_captcha_answers
+ * @param string $table_qa_confirm
+ */
+ function __construct($table_captcha_questions, $table_captcha_answers, $table_qa_confirm)
+ {
+ $this->table_captcha_questions = $table_captcha_questions;
+ $this->table_captcha_answers = $table_captcha_answers;
+ $this->table_qa_confirm = $table_qa_confirm;
+ }
+
+ /**
+ * @param int $type as per the CAPTCHA API docs, the type
+ */
+ function init($type)
+ {
+ global $config, $db, $user;
+
+ // load our language file
+ $user->add_lang('captcha_qa');
+
+ // read input
+ $this->confirm_id = request_var('qa_confirm_id', '');
+ $this->answer = utf8_normalize_nfc(request_var('qa_answer', '', true));
+
+ $this->type = (int) $type;
+ $this->question_lang = $user->lang_name;
+
+ // we need all defined questions - shouldn't be too many, so we can just grab them
+ // try the user's lang first
+ $sql = 'SELECT question_id
+ FROM ' . $this->table_captcha_questions . "
+ WHERE lang_iso = '" . $db->sql_escape($user->lang_name) . "'";
+ $result = $db->sql_query($sql, 3600);
+
+ while ($row = $db->sql_fetchrow($result))
+ {
+ $this->question_ids[$row['question_id']] = $row['question_id'];
+ }
+ $db->sql_freeresult($result);
+
+ // fallback to the board default lang
+ if (!sizeof($this->question_ids))
+ {
+ $this->question_lang = $config['default_lang'];
+
+ $sql = 'SELECT question_id
+ FROM ' . $this->table_captcha_questions . "
+ WHERE lang_iso = '" . $db->sql_escape($config['default_lang']) . "'";
+ $result = $db->sql_query($sql, 7200);
+
+ while ($row = $db->sql_fetchrow($result))
+ {
+ $this->question_ids[$row['question_id']] = $row['question_id'];
+ }
+ $db->sql_freeresult($result);
+ }
+
+ // okay, if there is a confirm_id, we try to load that confirm's state. If not, we try to find one
+ if (!$this->load_answer() && (!$this->load_confirm_id() || !$this->load_answer()))
+ {
+ // we have no valid confirm ID, better get ready to ask something
+ $this->select_question();
+ }
+ }
+
+ /**
+ * See if the captcha has created its tables.
+ */
+ public function is_installed()
+ {
+ global $db;
+
+ $db_tool = new \phpbb\db\tools($db);
+
+ return $db_tool->sql_table_exists($this->table_captcha_questions);
+ }
+
+ /**
+ * API function - for the captcha to be available, it must have installed itself and there has to be at least one question in the board's default lang
+ */
+ public function is_available()
+ {
+ global $config, $db, $phpbb_root_path, $phpEx, $user;
+
+ // load language file for pretty display in the ACP dropdown
+ $user->add_lang('captcha_qa');
+
+ if (!$this->is_installed())
+ {
+ return false;
+ }
+
+ $sql = 'SELECT COUNT(question_id) AS question_count
+ FROM ' . $this->table_captcha_questions . "
+ WHERE lang_iso = '" . $db->sql_escape($config['default_lang']) . "'";
+ $result = $db->sql_query($sql);
+ $row = $db->sql_fetchrow($result);
+ $db->sql_freeresult($result);
+
+ return ((bool) $row['question_count']);
+ }
+
+ /**
+ * API function
+ */
+ function has_config()
+ {
+ return true;
+ }
+
+ /**
+ * API function
+ */
+ static public function get_name()
+ {
+ return 'CAPTCHA_QA';
+ }
+
+ /**
+ * @return string the name of the service corresponding to the plugin
+ */
+ function get_service_name()
+ {
+ return $this->service_name;
+ }
+
+ /**
+ * Set the name of the plugin
+ *
+ * @param string $name
+ */
+ public function set_name($name)
+ {
+ $this->service_name = $name;
+ }
+
+ /**
+ * API function - not needed as we don't display an image
+ */
+ function execute_demo()
+ {
+ }
+
+ /**
+ * API function - not needed as we don't display an image
+ */
+ function execute()
+ {
+ }
+
+ /**
+ * API function - send the question to the template
+ */
+ function get_template()
+ {
+ global $template;
+
+ if ($this->is_solved())
+ {
+ return false;
+ }
+ else
+ {
+ $template->assign_vars(array(
+ 'QA_CONFIRM_QUESTION' => $this->question_text,
+ 'QA_CONFIRM_ID' => $this->confirm_id,
+ 'S_CONFIRM_CODE' => true,
+ 'S_TYPE' => $this->type,
+ ));
+
+ return 'captcha_qa.html';
+ }
+ }
+
+ /**
+ * API function - we just display a mockup so that the captcha doesn't need to be installed
+ */
+ function get_demo_template()
+ {
+ global $config, $db, $template;
+
+ if ($this->is_available())
+ {
+ $sql = 'SELECT question_text
+ FROM ' . $this->table_captcha_questions . "
+ WHERE lang_iso = '" . $db->sql_escape($config['default_lang']) . "'";
+ $result = $db->sql_query_limit($sql, 1);
+ if ($row = $db->sql_fetchrow($result))
+ {
+ $template->assign_vars(array(
+ 'QA_CONFIRM_QUESTION' => $row['question_text'],
+ ));
+ }
+ $db->sql_freeresult($result);
+ }
+ return 'captcha_qa_acp_demo.html';
+ }
+
+ /**
+ * API function
+ */
+ function get_hidden_fields()
+ {
+ $hidden_fields = array();
+
+ // this is required - otherwise we would forget about the captcha being already solved
+ if ($this->solved)
+ {
+ $hidden_fields['qa_answer'] = $this->answer;
+ }
+ $hidden_fields['qa_confirm_id'] = $this->confirm_id;
+
+ return $hidden_fields;
+ }
+
+ /**
+ * API function
+ */
+ function garbage_collect($type = 0)
+ {
+ global $db, $config;
+
+ $sql = 'SELECT c.confirm_id
+ FROM ' . $this->table_qa_confirm . ' c
+ LEFT JOIN ' . SESSIONS_TABLE . ' s
+ ON (c.session_id = s.session_id)
+ WHERE s.session_id IS NULL' .
+ ((empty($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) $row['confirm_id'];
+ }
+ while ($row = $db->sql_fetchrow($result));
+
+ if (sizeof($sql_in))
+ {
+ $sql = 'DELETE FROM ' . $this->table_qa_confirm . '
+ WHERE ' . $db->sql_in_set('confirm_id', $sql_in);
+ $db->sql_query($sql);
+ }
+ }
+ $db->sql_freeresult($result);
+ }
+
+ /**
+ * API function - we don't drop the tables here, as that would cause the loss of all entered questions.
+ */
+ function uninstall()
+ {
+ $this->garbage_collect(0);
+ }
+
+ /**
+ * API function - set up shop
+ */
+ function install()
+ {
+ global $db;
+
+ $db_tool = new \phpbb\db\tools($db);
+
+ $tables = array($this->table_captcha_questions, $this->table_captcha_answers, $this->table_qa_confirm);
+
+ $schemas = array(
+ $this->table_captcha_questions => array (
+ 'COLUMNS' => array(
+ 'question_id' => array('UINT', null, 'auto_increment'),
+ 'strict' => array('BOOL', 0),
+ 'lang_id' => array('UINT', 0),
+ 'lang_iso' => array('VCHAR:30', ''),
+ 'question_text' => array('TEXT_UNI', ''),
+ ),
+ 'PRIMARY_KEY' => 'question_id',
+ 'KEYS' => array(
+ 'lang' => array('INDEX', 'lang_iso'),
+ ),
+ ),
+ $this->table_captcha_answers => array (
+ 'COLUMNS' => array(
+ 'question_id' => array('UINT', 0),
+ 'answer_text' => array('STEXT_UNI', ''),
+ ),
+ 'KEYS' => array(
+ 'qid' => array('INDEX', 'question_id'),
+ ),
+ ),
+ $this->table_qa_confirm => array (
+ 'COLUMNS' => array(
+ 'session_id' => array('CHAR:32', ''),
+ 'confirm_id' => array('CHAR:32', ''),
+ 'lang_iso' => array('VCHAR:30', ''),
+ 'question_id' => array('UINT', 0),
+ 'attempts' => array('UINT', 0),
+ 'confirm_type' => array('USINT', 0),
+ ),
+ 'KEYS' => array(
+ 'session_id' => array('INDEX', 'session_id'),
+ 'lookup' => array('INDEX', array('confirm_id', 'session_id', 'lang_iso')),
+ ),
+ 'PRIMARY_KEY' => 'confirm_id',
+ ),
+ );
+
+ foreach($schemas as $table => $schema)
+ {
+ if (!$db_tool->sql_table_exists($table))
+ {
+ $db_tool->sql_create_table($table, $schema);
+ }
+ }
+ }
+
+ /**
+ * API function - see what has to be done to validate
+ */
+ function validate()
+ {
+ global $config, $db, $user;
+
+ $error = '';
+
+ if (!sizeof($this->question_ids))
+ {
+ return false;
+ }
+
+ if (!$this->confirm_id)
+ {
+ $error = $user->lang['CONFIRM_QUESTION_WRONG'];
+ }
+ else
+ {
+ if ($this->check_answer())
+ {
+ $this->solved = true;
+ }
+ else
+ {
+ $error = $user->lang['CONFIRM_QUESTION_WRONG'];
+ }
+ }
+
+ if (strlen($error))
+ {
+ // okay, incorrect answer. Let's ask a new question.
+ $this->new_attempt();
+ $this->solved = false;
+
+ return $error;
+ }
+ else
+ {
+ return false;
+ }
+ }
+
+ /**
+ * Select a question
+ */
+ function select_question()
+ {
+ global $db, $user;
+
+ if (!sizeof($this->question_ids))
+ {
+ return false;
+ }
+ $this->confirm_id = md5(unique_id($user->ip));
+ $this->question = (int) array_rand($this->question_ids);
+
+ $sql = 'INSERT INTO ' . $this->table_qa_confirm . ' ' . $db->sql_build_array('INSERT', array(
+ 'confirm_id' => (string) $this->confirm_id,
+ 'session_id' => (string) $user->session_id,
+ 'lang_iso' => (string) $this->question_lang,
+ 'confirm_type' => (int) $this->type,
+ 'question_id' => (int) $this->question,
+ ));
+ $db->sql_query($sql);
+
+ $this->load_answer();
+ }
+
+ /**
+ * New Question, if desired.
+ */
+ function reselect_question()
+ {
+ global $db, $user;
+
+ if (!sizeof($this->question_ids))
+ {
+ return false;
+ }
+
+ $this->question = (int) array_rand($this->question_ids);
+ $this->solved = 0;
+
+ $sql = 'UPDATE ' . $this->table_qa_confirm . '
+ SET question_id = ' . (int) $this->question . "
+ WHERE confirm_id = '" . $db->sql_escape($this->confirm_id) . "'
+ AND session_id = '" . $db->sql_escape($user->session_id) . "'";
+ $db->sql_query($sql);
+
+ $this->load_answer();
+ }
+
+ /**
+ * Wrong answer, so we increase the attempts and use a different question.
+ */
+ function new_attempt()
+ {
+ global $db, $user;
+
+ // yah, I would prefer a stronger rand, but this should work
+ $this->question = (int) array_rand($this->question_ids);
+ $this->solved = 0;
+
+ $sql = 'UPDATE ' . $this->table_qa_confirm . '
+ SET question_id = ' . (int) $this->question . ",
+ attempts = attempts + 1
+ WHERE confirm_id = '" . $db->sql_escape($this->confirm_id) . "'
+ AND session_id = '" . $db->sql_escape($user->session_id) . "'";
+ $db->sql_query($sql);
+
+ $this->load_answer();
+ }
+
+
+ /**
+ * See if there is already an entry for the current session.
+ */
+ function load_confirm_id()
+ {
+ global $db, $user;
+
+ $sql = 'SELECT confirm_id
+ FROM ' . $this->table_qa_confirm . "
+ WHERE
+ session_id = '" . $db->sql_escape($user->session_id) . "'
+ AND lang_iso = '" . $db->sql_escape($this->question_lang) . "'
+ AND confirm_type = " . $this->type;
+ $result = $db->sql_query_limit($sql, 1);
+ $row = $db->sql_fetchrow($result);
+ $db->sql_freeresult($result);
+
+ if ($row)
+ {
+ $this->confirm_id = $row['confirm_id'];
+ return true;
+ }
+ return false;
+ }
+
+ /**
+ * Look up everything we need and populate the instance variables.
+ */
+ function load_answer()
+ {
+ global $db, $user;
+
+ if (!strlen($this->confirm_id) || !sizeof($this->question_ids))
+ {
+ return false;
+ }
+
+ $sql = 'SELECT con.question_id, attempts, question_text, strict
+ FROM ' . $this->table_qa_confirm . ' con, ' . $this->table_captcha_questions . " qes
+ WHERE con.question_id = qes.question_id
+ AND confirm_id = '" . $db->sql_escape($this->confirm_id) . "'
+ AND session_id = '" . $db->sql_escape($user->session_id) . "'
+ AND qes.lang_iso = '" . $db->sql_escape($this->question_lang) . "'
+ AND confirm_type = " . $this->type;
+ $result = $db->sql_query($sql);
+ $row = $db->sql_fetchrow($result);
+ $db->sql_freeresult($result);
+
+ if ($row)
+ {
+ $this->question = $row['question_id'];
+
+ $this->attempts = $row['attempts'];
+ $this->question_strict = $row['strict'];
+ $this->question_text = $row['question_text'];
+
+ return true;
+ }
+
+ return false;
+ }
+
+ /**
+ * The actual validation
+ */
+ function check_answer()
+ {
+ global $db;
+
+ $answer = ($this->question_strict) ? utf8_normalize_nfc(request_var('qa_answer', '', true)) : utf8_clean_string(utf8_normalize_nfc(request_var('qa_answer', '', true)));
+
+ $sql = 'SELECT answer_text
+ FROM ' . $this->table_captcha_answers . '
+ WHERE question_id = ' . (int) $this->question;
+ $result = $db->sql_query($sql);
+
+ while ($row = $db->sql_fetchrow($result))
+ {
+ $solution = ($this->question_strict) ? $row['answer_text'] : utf8_clean_string($row['answer_text']);
+
+ if ($solution === $answer)
+ {
+ $this->solved = true;
+
+ break;
+ }
+ }
+ $db->sql_freeresult($result);
+
+ return $this->solved;
+ }
+
+ /**
+ * API function
+ */
+ function get_attempt_count()
+ {
+ return $this->attempts;
+ }
+
+ /**
+ * API function
+ */
+ function reset()
+ {
+ global $db, $user;
+
+ $sql = 'DELETE FROM ' . $this->table_qa_confirm . "
+ 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->select_question();
+ }
+
+ /**
+ * API function
+ */
+ function is_solved()
+ {
+ if (request_var('qa_answer', false) && $this->solved === 0)
+ {
+ $this->validate();
+ }
+
+ return (bool) $this->solved;
+ }
+
+ /**
+ * API function - The ACP backend, this marks the end of the easy methods
+ */
+ function acp_page($id, &$module)
+ {
+ global $db, $user, $auth, $template;
+ global $config, $phpbb_root_path, $phpbb_admin_path, $phpEx;
+
+ $user->add_lang('acp/board');
+ $user->add_lang('captcha_qa');
+
+ if (!self::is_installed())
+ {
+ $this->install();
+ }
+
+ $module->tpl_name = 'captcha_qa_acp';
+ $module->page_title = 'ACP_VC_SETTINGS';
+ $form_key = 'acp_captcha';
+ add_form_key($form_key);
+
+ $submit = request_var('submit', false);
+ $question_id = request_var('question_id', 0);
+ $action = request_var('action', '');
+
+ // we have two pages, so users might want to navigate from one to the other
+ $list_url = $module->u_action . "&amp;configure=1&amp;select_captcha=" . $this->get_service_name();
+
+ $template->assign_vars(array(
+ 'U_ACTION' => $module->u_action,
+ 'QUESTION_ID' => $question_id ,
+ 'CLASS' => $this->get_service_name(),
+ ));
+
+ // show the list?
+ if (!$question_id && $action != 'add')
+ {
+ $this->acp_question_list($module);
+ }
+ else if ($question_id && $action == 'delete')
+ {
+ if ($this->get_service_name() !== $config['captcha_plugin'] || !$this->acp_is_last($question_id))
+ {
+ if (confirm_box(true))
+ {
+ $this->acp_delete_question($question_id);
+
+ trigger_error($user->lang['QUESTION_DELETED'] . adm_back_link($list_url));
+ }
+ else
+ {
+ confirm_box(false, $user->lang['CONFIRM_OPERATION'], build_hidden_fields(array(
+ 'question_id' => $question_id,
+ 'action' => $action,
+ 'configure' => 1,
+ 'select_captcha' => $this->get_service_name(),
+ ))
+ );
+ }
+ }
+ else
+ {
+ trigger_error($user->lang['QA_LAST_QUESTION'] . adm_back_link($list_url), E_USER_WARNING);
+ }
+ }
+ else
+ {
+ // okay, show the editor
+ $error = false;
+ $input_question = request_var('question_text', '', true);
+ $input_answers = request_var('answers', '', true);
+ $input_lang = request_var('lang_iso', '', true);
+ $input_strict = request_var('strict', false);
+ $langs = $this->get_languages();
+
+ foreach ($langs as $lang => $entry)
+ {
+ $template->assign_block_vars('langs', array(
+ 'ISO' => $lang,
+ 'NAME' => $entry['name'],
+ ));
+ }
+
+ $template->assign_vars(array(
+ 'U_LIST' => $list_url,
+ ));
+
+ if ($question_id)
+ {
+ if ($question = $this->acp_get_question_data($question_id))
+ {
+ $answers = (isset($input_answers[$lang])) ? $input_answers[$lang] : implode("\n", $question['answers']);
+
+ $template->assign_vars(array(
+ 'QUESTION_TEXT' => ($input_question) ? $input_question : $question['question_text'],
+ 'LANG_ISO' => ($input_lang) ? $input_lang : $question['lang_iso'],
+ 'STRICT' => (isset($_REQUEST['strict'])) ? $input_strict : $question['strict'],
+ 'ANSWERS' => $answers,
+ ));
+ }
+ else
+ {
+ trigger_error($user->lang['FORM_INVALID'] . adm_back_link($list_url));
+ }
+ }
+ else
+ {
+ $template->assign_vars(array(
+ 'QUESTION_TEXT' => $input_question,
+ 'LANG_ISO' => $input_lang,
+ 'STRICT' => $input_strict,
+ 'ANSWERS' => $input_answers,
+ ));
+ }
+
+ if ($submit && check_form_key($form_key))
+ {
+ $data = $this->acp_get_question_input();
+
+ if (!$this->validate_input($data))
+ {
+ $template->assign_vars(array(
+ 'S_ERROR' => true,
+ ));
+ }
+ else
+ {
+ if ($question_id)
+ {
+ $this->acp_update_question($data, $question_id);
+ }
+ else
+ {
+ $this->acp_add_question($data);
+ }
+
+ add_log('admin', 'LOG_CONFIG_VISUAL');
+ trigger_error($user->lang['CONFIG_UPDATED'] . adm_back_link($list_url));
+ }
+ }
+ else if ($submit)
+ {
+ trigger_error($user->lang['FORM_INVALID'] . adm_back_link($list_url), E_USER_WARNING);
+ }
+ }
+ }
+
+ /**
+ * This handles the list overview
+ */
+ function acp_question_list(&$module)
+ {
+ global $db, $template;
+
+ $sql = 'SELECT *
+ FROM ' . $this->table_captcha_questions;
+ $result = $db->sql_query($sql);
+
+ $template->assign_vars(array(
+ 'S_LIST' => true,
+ ));
+
+ while ($row = $db->sql_fetchrow($result))
+ {
+ $url = $module->u_action . "&amp;question_id={$row['question_id']}&amp;configure=1&amp;select_captcha=" . $this->get_service_name() . '&amp;';
+
+ $template->assign_block_vars('questions', array(
+ 'QUESTION_TEXT' => $row['question_text'],
+ 'QUESTION_ID' => $row['question_id'],
+ 'QUESTION_LANG' => $row['lang_iso'],
+ 'U_DELETE' => "{$url}action=delete",
+ 'U_EDIT' => "{$url}action=edit",
+ ));
+ }
+ $db->sql_freeresult($result);
+ }
+
+ /**
+ * Grab a question and bring it into a format the editor understands
+ */
+ function acp_get_question_data($question_id)
+ {
+ global $db;
+
+ if ($question_id)
+ {
+ $sql = 'SELECT *
+ FROM ' . $this->table_captcha_questions . '
+ WHERE question_id = ' . $question_id;
+ $result = $db->sql_query($sql);
+ $question = $db->sql_fetchrow($result);
+ $db->sql_freeresult($result);
+
+ if (!$question)
+ {
+ return false;
+ }
+
+ $question['answers'] = array();
+
+ $sql = 'SELECT *
+ FROM ' . $this->table_captcha_answers . '
+ WHERE question_id = ' . $question_id;
+ $result = $db->sql_query($sql);
+
+ while ($row = $db->sql_fetchrow($result))
+ {
+ $question['answers'][] = $row['answer_text'];
+ }
+ $db->sql_freeresult($result);
+
+ return $question;
+ }
+ }
+
+ /**
+ * Grab a question from input and bring it into a format the editor understands
+ */
+ function acp_get_question_input()
+ {
+ $answers = utf8_normalize_nfc(request_var('answers', '', true));
+ $question = array(
+ 'question_text' => request_var('question_text', '', true),
+ 'strict' => request_var('strict', false),
+ 'lang_iso' => request_var('lang_iso', ''),
+ 'answers' => (strlen($answers)) ? explode("\n", $answers) : '',
+ );
+
+ return $question;
+ }
+
+ /**
+ * Update a question.
+ * param mixed $data : an array as created from acp_get_question_input or acp_get_question_data
+ */
+ function acp_update_question($data, $question_id)
+ {
+ global $db, $cache;
+
+ // easier to delete all answers than to figure out which to update
+ $sql = 'DELETE FROM ' . $this->table_captcha_answers . " WHERE question_id = $question_id";
+ $db->sql_query($sql);
+
+ $langs = $this->get_languages();
+ $question_ary = $data;
+ $question_ary['lang_id'] = $langs[$question_ary['lang_iso']]['id'];
+ unset($question_ary['answers']);
+
+ $sql = 'UPDATE ' . $this->table_captcha_questions . '
+ SET ' . $db->sql_build_array('UPDATE', $question_ary) . "
+ WHERE question_id = $question_id";
+ $db->sql_query($sql);
+
+ $this->acp_insert_answers($data, $question_id);
+
+ $cache->destroy('sql', $this->table_captcha_questions);
+ }
+
+ /**
+ * Insert a question.
+ * param mixed $data : an array as created from acp_get_question_input or acp_get_question_data
+ */
+ function acp_add_question($data)
+ {
+ global $db, $cache;
+
+ $langs = $this->get_languages();
+ $question_ary = $data;
+
+ $question_ary['lang_id'] = $langs[$data['lang_iso']]['id'];
+ unset($question_ary['answers']);
+
+ $sql = 'INSERT INTO ' . $this->table_captcha_questions . ' ' . $db->sql_build_array('INSERT', $question_ary);
+ $db->sql_query($sql);
+
+ $question_id = $db->sql_nextid();
+
+ $this->acp_insert_answers($data, $question_id);
+
+ $cache->destroy('sql', $this->table_captcha_questions);
+ }
+
+ /**
+ * Insert the answers.
+ * param mixed $data : an array as created from acp_get_question_input or acp_get_question_data
+ */
+ function acp_insert_answers($data, $question_id)
+ {
+ global $db, $cache;
+
+ foreach ($data['answers'] as $answer)
+ {
+ $answer_ary = array(
+ 'question_id' => $question_id,
+ 'answer_text' => $answer,
+ );
+
+ $sql = 'INSERT INTO ' . $this->table_captcha_answers . ' ' . $db->sql_build_array('INSERT', $answer_ary);
+ $db->sql_query($sql);
+ }
+
+ $cache->destroy('sql', $this->table_captcha_answers);
+ }
+
+ /**
+ * Delete a question.
+ */
+ function acp_delete_question($question_id)
+ {
+ global $db, $cache;
+
+ $tables = array($this->table_captcha_questions, $this->table_captcha_answers);
+
+ foreach ($tables as $table)
+ {
+ $sql = "DELETE FROM $table
+ WHERE question_id = $question_id";
+ $db->sql_query($sql);
+ }
+
+ $cache->destroy('sql', $tables);
+ }
+
+ /**
+ * Check if the entered data can be inserted/used
+ * param mixed $data : an array as created from acp_get_question_input or acp_get_question_data
+ */
+ function validate_input($question_data)
+ {
+ $langs = $this->get_languages();
+
+ if (!isset($question_data['lang_iso']) ||
+ !isset($question_data['question_text']) ||
+ !isset($question_data['strict']) ||
+ !isset($question_data['answers']))
+ {
+ return false;
+ }
+
+ if (!isset($langs[$question_data['lang_iso']]) ||
+ !strlen($question_data['question_text']) ||
+ !sizeof($question_data['answers']) ||
+ !is_array($question_data['answers']))
+ {
+ return false;
+ }
+
+ return true;
+ }
+
+ /**
+ * List the installed language packs
+ */
+ function get_languages()
+ {
+ global $db;
+
+ $sql = 'SELECT *
+ FROM ' . LANG_TABLE;
+ $result = $db->sql_query($sql);
+
+ $langs = array();
+ while ($row = $db->sql_fetchrow($result))
+ {
+ $langs[$row['lang_iso']] = array(
+ 'name' => $row['lang_local_name'],
+ 'id' => (int) $row['lang_id'],
+ );
+ }
+ $db->sql_freeresult($result);
+
+ return $langs;
+ }
+
+
+
+ /**
+ * See if there is a question other than the one we have
+ */
+ function acp_is_last($question_id)
+ {
+ global $config, $db;
+
+ if ($question_id)
+ {
+ $sql = 'SELECT question_id
+ FROM ' . $this->table_captcha_questions . "
+ WHERE lang_iso = '" . $db->sql_escape($config['default_lang']) . "'
+ AND question_id <> " . (int) $question_id;
+ $result = $db->sql_query_limit($sql, 1);
+ $question = $db->sql_fetchrow($result);
+ $db->sql_freeresult($result);
+
+ if (!$question)
+ {
+ return true;
+ }
+ return false;
+ }
+ }
+}
diff --git a/phpBB/phpbb/captcha/plugins/recaptcha.php b/phpBB/phpbb/captcha/plugins/recaptcha.php
new file mode 100644
index 0000000000..ea446d7bc3
--- /dev/null
+++ b/phpBB/phpbb/captcha/plugins/recaptcha.php
@@ -0,0 +1,330 @@
+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+namespace phpbb\captcha\plugins;
+
+class recaptcha extends captcha_abstract
+{
+ var $recaptcha_server = 'http://www.google.com/recaptcha/api';
+ var $recaptcha_server_secure = 'https://www.google.com/recaptcha/api'; // class constants :(
+
+ // We are opening a socket to port 80 of this host and send
+ // the POST request asking for verification to the path specified here.
+ var $recaptcha_verify_server = 'www.google.com';
+ var $recaptcha_verify_path = '/recaptcha/api/verify';
+
+ var $challenge;
+ var $response;
+
+ // PHP4 Constructor
+ function phpbb_recaptcha()
+ {
+ global $request;
+ $this->recaptcha_server = $request->is_secure() ? $this->recaptcha_server_secure : $this->recaptcha_server;
+ }
+
+ function init($type)
+ {
+ global $config, $db, $user;
+
+ $user->add_lang('captcha_recaptcha');
+ parent::init($type);
+ $this->challenge = request_var('recaptcha_challenge_field', '');
+ $this->response = request_var('recaptcha_response_field', '');
+ }
+
+ public function is_available()
+ {
+ global $config, $user;
+ $user->add_lang('captcha_recaptcha');
+ return (isset($config['recaptcha_pubkey']) && !empty($config['recaptcha_pubkey']));
+ }
+
+ /**
+ * API function
+ */
+ function has_config()
+ {
+ return true;
+ }
+
+ static public function get_name()
+ {
+ return 'CAPTCHA_RECAPTCHA';
+ }
+
+ /**
+ * This function is implemented because required by the upper class, but is never used for reCaptcha.
+ */
+ function get_generator_class()
+ {
+ throw new \Exception('No generator class given.');
+ }
+
+ function acp_page($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, $value);
+ }
+ }
+
+ add_log('admin', 'LOG_CONFIG_VISUAL');
+ trigger_error($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_service_name(),
+ 'U_ACTION' => $module->u_action,
+ ));
+
+ }
+ }
+
+ // not needed
+ function execute_demo()
+ {
+ }
+
+ // not needed
+ function execute()
+ {
+ }
+
+ function get_template()
+ {
+ global $config, $user, $template, $phpbb_root_path, $phpEx;
+
+ if ($this->is_solved())
+ {
+ return false;
+ }
+ else
+ {
+ $contact_link = phpbb_get_board_contact_link($config, $phpbb_root_path, $phpEx);
+ $explain = $user->lang(($this->type != CONFIRM_POST) ? 'CONFIRM_EXPLAIN' : 'POST_CONFIRM_EXPLAIN', '<a href="' . $contact_link . '">', '</a>');
+
+ $template->assign_vars(array(
+ 'RECAPTCHA_SERVER' => $this->recaptcha_server,
+ 'RECAPTCHA_PUBKEY' => isset($config['recaptcha_pubkey']) ? $config['recaptcha_pubkey'] : '',
+ 'RECAPTCHA_ERRORGET' => '',
+ 'S_RECAPTCHA_AVAILABLE' => self::is_available(),
+ 'S_CONFIRM_CODE' => true,
+ 'S_TYPE' => $this->type,
+ 'L_CONFIRM_EXPLAIN' => $explain,
+ ));
+
+ return 'captcha_recaptcha.html';
+ }
+ }
+
+ function get_demo_template($id)
+ {
+ return $this->get_template();
+ }
+
+ function get_hidden_fields()
+ {
+ $hidden_fields = array();
+
+ // this is required for posting.php - otherwise we would forget about the captcha being already solved
+ if ($this->solved)
+ {
+ $hidden_fields['confirm_code'] = $this->code;
+ }
+ $hidden_fields['confirm_id'] = $this->confirm_id;
+ return $hidden_fields;
+ }
+
+ function uninstall()
+ {
+ $this->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, $errstr, 10)))
+ {
+ trigger_error('RECAPTCHA_SOCKET_ERROR', E_USER_ERROR);
+ }
+
+ fwrite($fs, $http_request);
+
+ while (!feof($fs))
+ {
+ // One TCP-IP packet
+ $response .= fgets($fs, 1160);
+ }
+ 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, $this->recaptcha_verify_path,
+ 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
+ {
+ 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;
+ }
+}
generated by cgit v1.2.1 (git 2.21.0) at 2025-10-31 21:38:37 +0000