1 | <?php |
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2 | define('PHPWG_ROOT_PATH', '../../../'); |
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3 | include(PHPWG_ROOT_PATH . 'include/common.inc.php'); |
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4 | |
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5 | is_admin() or die('Hacking attempt!'); |
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6 | |
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7 | defined('EASYCAPTCHA_ID') or die('Hacking attempt!'); |
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8 | include_once(EASYCAPTCHA_PATH . 'tictac/functions_tictac.inc.php'); |
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9 | |
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10 | $props = array(); |
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11 | |
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12 | // overwrite config from url params |
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13 | $conf['EasyCaptcha']['tictac'] = $_GET; |
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14 | $props['size'] = $conf['EasyCaptcha']['tictac']['size']; |
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15 | |
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16 | // compute various sizes |
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17 | $props['bd_size'] = max(1, floor($props['size']*0.01)); |
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18 | $props['box_size'] = floor(($props['size']-4*$props['bd_size'])/3); |
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19 | $props['size'] = 3*$props['box_size'] + 4*$props['bd_size'] + 1; |
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20 | $props['pad'] = floor($props['box_size']*0.1); |
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21 | $props['radius'] = floor($props['box_size']*0.2); |
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22 | |
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23 | |
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24 | // pick a random config |
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25 | $configs = get_configs(); |
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26 | $selection = $configs[ array_rand($configs) ]; |
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27 | |
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28 | |
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29 | // create image |
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30 | $img = imagecreatetruecolor($props['size'], $props['size']); |
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31 | imageantialias($img, true); |
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32 | |
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33 | // background |
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34 | $bg_start = hex2rgb($conf['EasyCaptcha']['tictac']['bg1']); |
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35 | $bg_end = hex2rgb($conf['EasyCaptcha']['tictac']['bg2']); |
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36 | |
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37 | imagegradientrectangle($img, $bg_start , $bg_end); |
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38 | // $bg = imagecolorallocatehex($img, $conf['EasyCaptcha']['tictac']['bg1']); |
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39 | // imagefilledrectangle($img, 0, 0, $props['size'], $props['size'], $bg); |
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40 | |
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41 | // borders |
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42 | $bd = imagecolorallocatehex($img, $conf['EasyCaptcha']['tictac']['bd']); |
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43 | for ($i=0; $i<4; $i++) |
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44 | { |
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45 | imagefilledrectangle($img, $i*($props['box_size']+$props['bd_size']), 0, $i*($props['box_size']+$props['bd_size'])+$props['bd_size'], $props['size'], $bd); |
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46 | imagefilledrectangle($img, 0, $i*($props['box_size']+$props['bd_size']), $props['size'], $i*($props['box_size']+$props['bd_size'])+$props['bd_size'], $bd); |
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47 | } |
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48 | |
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49 | // crosses |
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50 | foreach ($selection['checked'] as $pos) |
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51 | { |
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52 | drawcross($img, $pos, $conf['EasyCaptcha']['tictac']['obj']); |
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53 | } |
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54 | imagedestroy($img_cross); |
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55 | drawcross($img, $selection['answer'], $conf['EasyCaptcha']['tictac']['sel']); |
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56 | |
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57 | // circles |
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58 | $protect = $selection['checked']; |
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59 | $protect[] = $selection['answer']; |
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60 | $i = rand(2,4); |
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61 | $circles = array(); |
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62 | |
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63 | while ($i>0) |
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64 | { |
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65 | $pos = array(rand(0, 2), rand(0, 2)); |
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66 | |
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67 | foreach ($protect as $pro) |
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68 | { |
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69 | if ($pos[0]==$pro[0] && $pos[1]==$pro[1]) continue(2); |
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70 | } |
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71 | if (checkline($pos, $circles)) continue; |
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72 | |
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73 | $protect[] = $pos; |
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74 | $circles[$pos[0]][$pos[1]] = true; |
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75 | |
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76 | drawcircle($img, $pos, $conf['EasyCaptcha']['tictac']['obj']); |
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77 | $i--; |
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78 | } |
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79 | |
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80 | |
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81 | // output |
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82 | header('Content-Type: image/png'); |
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83 | imagepng($img); |
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