# sfCaptchaGD plugin #

The `sfCaptchaGDPlugin` is a symfony plugin that provides captcha functionality based on GD library.

It gives you the lib with Captcha class and the module to secure your symfony forms in a minute with a good captcha.

## Installation ##

### Install the plugin for sf >= 1.2 ###
  
    php symfony plugin:install sfCaptchaGDPlugin

### Install the plugin for sf 1.1 ###
  
    php symfony plugin:install sfCaptchaGDPlugin --release=1.0.7


### Install the plugin for sf 1.0 ###
  
    php symfony plugin-install http://plugins.symfony-project.com/sfCaptchaGDPlugin
  
Enable one or more modules in your `settings.yml`

    all:
      .settings:
        enabled_modules:      [default, sfCaptchaGD]

Clear your cache
  
    symfony cc

## Secure your form ##

### To secure a symfony form for sf 1.2 ###
Add captcha field in your form class:

    $this->setWidgets(array(
      'captcha' => new sfWidgetCaptchaGD(),
    ));

    $this->setValidators(array(
      'captcha' => new sfCaptchaGDValidator(array('length' => 4)),
    ));

Length - captcha length, optional.

Don't forget to bind captcha value to form like this:

    $this->form->bind(array(
      'captcha'   => $request->getParameter('captcha'),
    ));

### To secure a symfony form for sf 1.0 & 1.1 ###
Put the following lines inside of your form

    <?php if ($sf_request->hasError('captcha')) echo form_error('captcha') ?>
    <?php echo input_tag('captcha', $sf_params->get('captcha')) ?><br>
    <a href='' onClick='return false' title='Reload image'><img src='/captcha?<?php echo time(); ?>' onClick='this.src="/captcha?r=" + Math.random() + "&reload=1"'></a>

Put the following code into your form's validator yml file:

    fields:
      captcha:
        required:
          msg:            Enter characters from image
        sfCaptchaGDValidator:
          captcha_error:  Entered characters are wrong, try again

## Configuration options ##
These options are default for captcha, you can change any of them, putting in settings.yml

    all:
        sf_captchagd:
            image_width:                100 # image width in pixels
            image_height:               30 # image height in pixels
            chars:                      "123456789" # possible chars in captcha
            length:                     4 # length of captcha
            font_size:                  18 # font size
            force_new_captcha:          false # if true - captcha regenerated EVERY request, even if user input true value before
            
            # possible chars colors
            font_color:                 ["252525", "8b8787", "550707", "3526E6", "88531E"]
            
            # chars fonts
            fonts:                      ["akbar/akbar.ttf", "brushcut/BRUSHCUT.TTF", "molten/molten.ttf", "planet_benson/Planetbe.ttf", "whoobub/WHOOBUB_.TTF"] 
            background_color:           DDDDDD # image background color
            border_color:               000000 # image border color


== TODO ==

None at this moment.
