PHP Securimage类代码示例

 public static function show($captcha_name, $width = 300, $height = 100)
 {
     $options = array('send_headers' => FALSE, 'no_exit' => TRUE);
     $img = new Securimage($options);
     //Change some settings
     $img->namespace = $captcha_name;
     $img->image_width = $width;
     $img->image_height = $height;
     $img->perturbation = 0.85;
     $img->image_bg_color = new Securimage_Color("#f6f6f6");
     $img->use_transparent_text = true;
     $img->text_transparency_percentage = 10;
     // 100 = completely transparent
     $img->num_lines = 7;
     $img->line_color = new Securimage_Color("#eaeaea");
     $img->signature_color = new Securimage_Color(rand(0, 64), rand(64, 128), rand(128, 255));
     ob_start();
     // start the output buffer
     $img->show(BASEPATH . '../application/third_party/securimage/backgrounds/bg6.jpg');
     // alternate use:  $img->show('/path/to/background_image.jpg');
     $imgBinary = ob_get_contents();
     // get contents of the buffer
     ob_end_clean();
     // turn off buffering and clear the buffer
     header('Content-Type: image/png');
     header('Content-Length: ' . strlen($imgBinary));
     echo $imgBinary;
 }

 /**
  * 画像作成。
  */
 public function captcha()
 {
     App::import('Vendor', 'Securimage', array('file' => 'securimage/securimage.php'));
     $securimage = new Securimage();
     $securimage->ttf_file = ROOT . '/vendors/securimage/AHGBold.ttf';
     $securimage->show();
 }

 public function run($form)
 {
     $img = new Securimage();
     try {
         $code = $form->get('code');
         if (!$img->check($code)) {
             throw new CaptchaIncorretoException();
         }
         $nome = $form->get('nome');
         $empresa = $form->get('empresa');
         $telefone = $form->get('telefone');
         $assunto = $form->get('assunto');
         $mensagem = $form->get('mensagem');
         $msg = new Mensagem(null, $nome, $empresa, $telefone, $assunto, $mensagem, Constants::$_ATIVO);
         $fachada = Fachada::getInstance();
         $fachada->cadastroMensagem()->cadastrar($msg);
         $this->setMessage("Mensagem cadastrada com sucesso.", Constants::$_MSG_SUCCESS);
         $this->load('100%');
         $this->setForward(Forward::go(FaleConoscoPage::$NM_PAGINA . '&msg_cadastro=sucesso'));
     } catch (CaptchaIncorretoException $e) {
         $this->setMessage("As letras não foram digitadas corretamente! Por favor, tente novamente...", Constants::$_MSG_ERROR);
         $this->load('100%');
         $this->setForward(Forward::$_BACK);
     }
 }

function process_si_contact_form()
{
    if ($_SERVER['REQUEST_METHOD'] == 'POST' && @$_POST['do'] == 'contact') {
        // if the form has been submitted
        /*foreach($_POST as $key => $value) {
            if (!is_array($key)) {
            	// sanitize the input data
              if ($key != 'ct_message') $value = strip_tags($value);
              $_POST[$key] = htmlspecialchars(stripslashes(trim($value)));
            }
          }*/
        $captcha = @$_POST['ct_captcha'];
        // the user's entry for the captcha code
        //$name    = substr($name, 0, 64);  // limit name to 64 characters
        // Only try to validate the captcha if the form has no errors
        // This is especially important for ajax calls
        require_once dirname(__FILE__) . '/securimage.php';
        $securimage = new Securimage();
        if ($securimage->check($captcha) == false) {
            echo 'denaied123';
        } else {
            echo 'success123';
        }
    }
    // POST
}

 public function test(&$element, $value, $group = null, &$input = null, &$form = null)
 {
     // If the field is empty and not required, the field is valid.
     require_once JPATH_ROOT . DIRECTORY_SEPARATOR . 'components' . DIRECTORY_SEPARATOR . 'com_mightytouch' . DIRECTORY_SEPARATOR . 'assets' . DIRECTORY_SEPARATOR . 'securimage.php';
     $img = new Securimage();
     return $img->check($value);
 }

 function findpassword()
 {
     if (strtoupper($_SERVER['REQUEST_METHOD']) === 'POST') {
         $this->load->helper(array('server'));
         include_once FCPATH . 'resource/securimage/securimage.php';
         $securimage = new Securimage();
         if ($securimage->check($this->input->post('captcha_code')) === false) {
             json_response(array('success' => FALSE, 'msg' => 'Error Captcha'));
         } else {
             $this->form_validation->set_rules('username', 'Username Or Email', 'trim|required');
             if ($this->form_validation->run() === FALSE) {
                 json_response(array('success' => FALSE, 'msg' => validation_errors()));
             } else {
                 $username = trim($this->input->post('username'));
                 $this->db->where('username', $username);
                 $this->db->or_where('email', $username);
                 $row = $this->db->get('users')->row();
                 if ($row) {
                     // send change password link email to user
                     json_response(array('success' => TRUE, 'msg' => 'Send Success Info'));
                 } else {
                     json_response(array('success' => FALSE, 'msg' => 'Invalid User'));
                 }
             }
         }
     } else {
         $this->load->view('findpassword');
     }
 }

 public function postRegistro()
 {
     include_once public_path() . '/securimage/securimage.php';
     $securimage = new Securimage();
     $captcha_sesion = strtoupper($securimage->getCode());
     include app_path() . "/include/cifrado.php";
     $usuario = new Usuario();
     $data = Input::all();
     $data['captcha_sesion'] = $captcha_sesion;
     $data['captcha_code'] = strtoupper($data['captcha_code']);
     $data['fecha_nacimiento'] = $data['anyo'] . "-" . $data['mes'] . "-" . $data['dia'];
     foreach ($data as $key => $value) {
         if ($key != 'password' && $key != 'email') {
             $data[$key] = mb_strtoupper($value, 'UTF-8');
         }
     }
     $data['password'] = encriptar($data['password']);
     $data['cod_verif'] = rand(111111, 999999);
     if (!$usuario->isValid($data)) {
         return Redirect::action('Usuario_UsuarioController@getRegistro')->withInput(Input::except('password'))->withErrors($usuario->errors)->with('id_municipio', $data['municipio']);
     }
     $usuario->fill($data);
     $usuario->save();
     return Redirect::action('Usuario_UsuarioController@getVerificar', array($usuario->id))->with('message_ok', 'Registro Completado. 
 			Por favor, inserte el código de verificación que le hemos enviado a su correo electrónico. Gracias');
 }

 function createNew()
 {
     $this->load->library('form_validation');
     $this->form_validation->set_rules('username', 'Username', 'required|is_unique[user.login]');
     $this->form_validation->set_rules('password', 'Password', 'required');
     $this->form_validation->set_rules('first', 'First', "required");
     $this->form_validation->set_rules('last', 'last', "required");
     $this->form_validation->set_rules('email', 'Email', "required|is_unique[user.email]");
     if ($this->form_validation->run() == FALSE) {
         $this->load->view('account/newForm');
     } else {
         include_once $_SERVER['DOCUMENT_ROOT'] . '/securimage/securimage.php';
         $securimage = new Securimage();
         if ($securimage->check($_POST['captcha_code']) == false) {
             echo "The security code entered was incorrect.<br /><br />";
             echo "Please go <a href='javascript:history.go(-1)'>back</a> and try again.";
             exit;
         }
         $user = new User();
         $user->login = $this->input->post('username');
         $user->first = $this->input->post('first');
         $user->last = $this->input->post('last');
         $clearPassword = $this->input->post('password');
         $user->encryptPassword($clearPassword);
         $user->email = $this->input->post('email');
         $this->load->model('user_model');
         $error = $this->user_model->insert($user);
         $this->load->view('account/loginForm');
     }
 }

 function createNew()
 {
     include_once $_SERVER['DOCUMENT_ROOT'] . '/tanks/securimage/securimage.php';
     $securimage = new Securimage();
     if ($securimage->check($_POST['captcha_code']) == false) {
         // the code was incorrect
         // you should handle the error so that the form processor doesn't continue
         // or you can use the following code if there is no validation
         echo "The security code entered was incorrect.<br /><br />";
         echo "Please go <a href='javascript:history.go(-1)'>back</a> and try again.";
         exit;
     }
     $this->load->library('form_validation');
     $this->form_validation->set_rules('username', 'Username', 'required|is_unique[user.login]');
     $this->form_validation->set_rules('password', 'Password', 'required');
     $this->form_validation->set_rules('first', 'First', "required");
     $this->form_validation->set_rules('last', 'last', "required");
     $this->form_validation->set_rules('email', 'Email', "required|is_unique[user.email]");
     if ($this->form_validation->run() == FALSE) {
         $this->load->view('account/newForm');
     } else {
         //FIXME: notify user on success
         $user = new User();
         $user->login = $this->input->post('username');
         $user->first = $this->input->post('first');
         $user->last = $this->input->post('last');
         $clearPassword = $this->input->post('password');
         $user->encryptPassword($clearPassword);
         $user->email = $this->input->post('email');
         $this->load->model('user_model');
         $this->user_model->insert($user);
         $this->load->view('account/loginForm');
     }
 }

 /**
  * 检查验证码(会使验证码失效)
  *
  * @param string $code  被检测的验证码
  */
 public function getCheckCaptchaAction($code)
 {
     require APP_PATH . 'libraries/securimage/securimage.php';
     $img = new \Securimage(array('session' => $this->session));
     $data = array('name' => 'captcha', 'result' => (bool) (strtolower($img->getCode()) === strtolower($code)));
     $this->responseJson('200', 'OK', $data);
 }

 public function actionCaptcha()
 {
     require_once dirname(__FILE__) . '/../widget/secureimage/assets/securimage.php';
     $img = new \Securimage();
     // You can customize the image by making changes below, some examples are included - remove the "//" to uncomment
     //$img->ttf_file        = dirname(__FILE__) . '/../widget/secureimage/assets/AHGBold.ttf';
     //$img->captcha_type    = \Securimage::SI_CAPTCHA_WORDS; // show a simple math problem instead of text
     //$img->case_sensitive  = true;                              // true to use case sensitve codes - not recommended
     //$img->image_height    = 90;                                // height in pixels of the image
     //$img->image_width     = $img->image_height * M_E *1.5;          // a good formula for image size based on the height
     //$img->perturbation    = .75;                               // 1.0 = high distortion, higher numbers = more distortion
     $img->image_bg_color = new \Securimage_Color("#f1f3f4");
     // image background color
     //$img->text_color      = new \Securimage_Color("#000");   // captcha text color
     //$img->num_lines       = 8;                                 // how many lines to draw over the image
     //$img->line_color      = new Securimage_Color("#0000CC");   // color of lines over the image
     //$img->image_type      = SI_IMAGE_JPEG;                     // render as a jpeg image
     //$img->signature_color = new Securimage_Color(rand(0, 64),
     //                                             rand(64, 128),
     //                                             rand(128, 255));  // random signature color
     if (!empty($_GET['namespace'])) {
         $img->setNamespace($_GET['namespace']);
     }
     $img->show();
 }

 public static function captchaCheck()
 {
     $_POST['captcha_code'] = empty($_POST['captcha_code']) ? '' : $_POST['captcha_code'];
     if (include public_path(config('coaster::admin.public') . '/securimage/securimage.php')) {
         $secure_image = new \Securimage();
     }
     return isset($secure_image) ? $secure_image->check($_POST['captcha_code']) : false;
 }

 function check_captha($captcha = "")
 {
     $securimage = new Securimage();
     if ($securimage->check($captcha) == false) {
         return false;
     } else {
         return true;
     }
 }

	public function validate(AF_Element $element) {
		if (class_exists('Securimage')) {
			$securimage = new Securimage();
			return $securimage->check($element->value);
		}
		else {
			die('AF_SecurimageValidator ERROR! Class Securimage not found.');
		}
	}

function is_validate_captcha($code)
{
    // CAPTCHA Class
    include_once dirname(__FILE__) . '/lib/securimage/securimage.php';
    $securimage = new Securimage();
    if (false == $securimage->check($code)) {
        return 0;
    }
    return 1;
}