/membres/captcha.php
PHP | 139 lines | 70 code | 18 blank | 51 comment | 0 complexity | 43650de7a2a864069d223c2848c3f4d3 MD5 | raw file
- <?php
- /*
- Neoterranos & LkY
- Page captcha.php
- Génère un captcha.
- Quelques indications : (utiliser l'outil de recherche et rechercher les mentions données)
- Liste des fonctions :
- --------------------------
- Aucune fonction
- --------------------------
- Liste des informations/erreurs :
- --------------------------
- Aucune information/erreur
- --------------------------
- */
- session_start();
- header ("Content-type: image/png");
- $image = imagecreate(320, 100);
- $blanc = imagecolorallocate($image, 255, 255, 255);
- $noir = imagecolorallocate($image, 0, 0, 0);
- $gris = imagecolorallocate($image, 200,200,200);
- $jaune = imagecolorallocate($image, 255, 255, 0);
- $rouge = imagecolorallocate($image, 200, 39, 45);
- $vert = imagecolorallocate($image, 45, 255, 39);
- $cyan = imagecolorallocate($image, 0, 255, 255);
- $magenta = imagecolorallocate($image, 200, 0, 200);
- $orange = imagecolorallocate($image, 255, 160, 0);
- $bleu = imagecolorallocate($image, 60, 75, 200);
- $bleuclair = imagecolorallocate($image, 156, 227, 254);
- $vertf = imagecolorallocate($image, 20, 140, 17);
- /*$Anoir = imagecolorallocatealpha($image, 0, 0, 0, 80);
- $Ajaune = imagecolorallocatealpha($image, 255, 255, 0, 80);
- $Ablanc = imagecolorallocatealpha($image, 255, 255, 255, 80);
- $Arouge = imagecolorallocatealpha($image, 200, 39, 45, 80);
- $Avert = imagecolorallocatealpha($image, 45, 200, 39, 80);
- $Acyan = imagecolorallocatealpha($image, 0, 255, 255, 80);
- $Amagenta = imagecolorallocatealpha($image, 255, 0, 255, 80);
- $Aorange = imagecolorallocatealpha($image, 255, 128, 0, 80);
- $Ableu = imagecolorallocatealpha($image, 39, 45, 200, 80);
- $Ableuclair = imagecolorallocatealpha($image, 156, 227, 254, 80);
- $A2noir = imagecolorallocatealpha($image, 0, 0, 0, 25);
- $A2jaune = imagecolorallocatealpha($image, 255, 255, 0, 25);
- $A2blanc = imagecolorallocatealpha($image, 255, 255, 255, 25);
- $A2rouge = imagecolorallocatealpha($image, 200, 39, 45, 25);
- $A2vert = imagecolorallocatealpha($image, 45, 200, 39, 25);
- $A2cyan = imagecolorallocatealpha($image, 0, 255, 255, 25);
- $A2magenta = imagecolorallocatealpha($image, 255, 0, 255, 25);
- $A2orange = imagecolorallocatealpha($image, 255, 128, 0, 25);
- $A2bleu = imagecolorallocatealpha($image, 39, 45, 200, 25);
- $A2bleuclair = imagecolorallocatealpha($image, 156, 227, 254, 25);*/
- //Toutes les couleurs
- $colors = Array($vert, $noir, $jaune, $blanc, $rouge, $cyan, $magenta, $orange, $bleu, $bleuclair, $gris, $vertf);
- $Tcolors = count($colors);
- /*$colors2 = Array($Avert, $Anoir, $Ajaune, $Ablanc, $Arouge, $Acyan, $Amagenta, $Aorange, $Ableu, $Ableuclair);
- $Tcolors2 = count($colors2);
- $colors3 = Array($A2vert, $A2noir, $A2jaune, $A2blanc, $A2rouge, $A2cyan, $A2magenta, $A2orange, $A2bleu, $A2bleuclair);
- $Tcolors3 = count($colors3);*/
- //couleurs autorisées pour les caractères
- $Lcolors = Array($noir, $rouge, $magenta, $bleu, $vertf);
- $TLcolors = count($Lcolors);
- $polices = Array('helvetica'); //Pensez à en rajouter !!
- $Tpolices = count($polices);
- //définition des caractères autorisés.
- $carac = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ';
- $Tcarac = strlen($carac);
- //définition des lignes noires
- $nb_lignes = mt_rand(3,7);
- $i = 1;
- while($i<=$nb_lignes)
- {
- ImageLine($image, mt_rand(0,40), mt_rand(0,100), mt_rand(280, 320), mt_rand(0,100), $noir);
- $i++;
- }
- //définition des lignes colorées.
- $nb_lignes = mt_rand(3,7);
- $i = 1;
- while($i<=$nb_lignes)
- {
- ImageLine($image, mt_rand(0,40), mt_rand(0,100), mt_rand(280,320), mt_rand(0,100), $colors[mt_rand(0,$Tcolors-1)]);
- $i++;
- }
- //définition des ellipses
- $nb_ellipses = mt_rand(1,6);
- $i = 1;
- while($i<= $nb_ellipses)
- {
- ImageEllipse($image, mt_rand(0,320), mt_rand(0,100), 25+mt_rand(0,15), 25+mt_rand(0,15), $colors[mt_rand(0,$Tcolors-1)]);
- $i++;
- }
- //définition des triangles
- $nb_triangles = mt_rand(1,6);
- $i = 1;
- while($i<=$nb_triangles)
- {
- $array = Array(mt_rand(0,300), mt_rand(0,100), mt_rand(0,300), mt_rand(0,100), mt_rand(0,300), mt_rand(0,100));
- ImagePolygon($image, $array, 3, $colors[mt_rand(0,$Tcolors-1)]);
- $i++;
- }
- $aupifcolor = $Lcolors[mt_rand(0,$TLcolors-1)]; //la couleur des caractères
- $ecart = 300/10+4; //écart entre les caractères
- $_SESSION['captcha'] = ''; //La voilà !! Enfin !!
- $i = 0;
- while($i <= 7)
- {
- $lettre = $carac[mt_rand(0, $Tcarac-1)]; //choix de lettre
- $_SESSION['captcha'] .= $lettre; //stockage
- $taille = mt_rand(35,45); //taille
- $angle = mt_rand(-35,35); //angle
- $y = mt_rand(55, 60); //ordonnée
- $police = $polices[mt_rand(0, $Tpolices-1)]; //police :p
-
- imagettftext($image, $taille, $angle, $ecart*$i+15, $y, $aupifcolor, 'polices/'.$police.'.ttf', $lettre);
- $i++;
- }
- imagepng($image); //On envoie et on prie :p
- ?>