sfCaptchaGD plugin

The wkCaptchaPlugin is a symfony plugin and part of webkasb project that provides captcha functionality based on securimage 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 1.4

php symfony plugin:install wkCaptchaPlugin

Activate

Enable one or more modules, add I18N helper and enable internationalization in your settings.yml

all:
  .settings:
    enabled_modules:      [default, wkCaptchaImage]
    standard_helpers:     [Partial, Cache, I18N]
    i18n:                 true

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->setWidget("captcha" => new wkWidgetCaptcha());

$this->setValidator("captcha" => new wkValidatorCaptcha());

Configuration options

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

all:
    wkCaptcha:
        image_width: 160
        image_height: 80
        image_bg_color: "#fff"
        perturbation: .8
        code_length_min: 4
        code_length_max: 6
        num_lines: 4
        noise_level: 3
        text_color: "#333"
        noise_color: "#111"
        line_color: "#DDD"

Thanks

Thanks Alex Kubyshkin for his work on sfCaptchaGDPlugin. I get idea for writing this from his work.