system/classes/formvalidators.php

<?php

namespace Habari;

class FormValidators
{

  public static function have($validator)
  {
    $methods = get_class_methods(__CLASS__);
    return in_array($validator, $methods);
  }

  public static function validate_url( $text, $control, $form, $warning = null, $schemes = array( 'http', 'https' ) )
  {
    if ( ! empty( $text ) ) {
      $parsed = InputFilter::parse_url( $text );
      if ( $parsed['is_relative'] ) {
        // guess if they meant to use an absolute link
        $parsed = InputFilter::parse_url( 'http://' . $text );
        if ( $parsed['is_error'] ) {
          // disallow relative URLs
          $warning = empty( $warning ) ? _t( 'Relative urls are not allowed' ) : $warning;
          return array( $warning );
        }
      }
      if ( $parsed['is_pseudo'] || ! in_array( $parsed['scheme'], $schemes ) ) {
        // allow only http(s) URLs
        $warning = empty( $warning ) ? _t( 'Only %s urls are allowed', array( Format::and_list( $schemes ) ) ) : $warning;
        return array( $warning );
      }
    }
    return array();
  }

  public static function validate_email( $text, $control, $form, $warning = null )
  {
    if ( ! empty( $text ) ) {
      if ( !preg_match( "@^[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*\@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?$@i", $text ) ) {
        $warning = empty( $warning ) ? _t( 'Value for %s must be a valid Email Address.', array($control->get_label()) ) : $warning;
        return array( $warning );
      }
    }
    return array();
  }

  public static function validate_required( $value, $control, $form, $warning = null )
  {
    if ( empty( $value ) || $value == '' ) {
      $warning = empty( $warning ) ? _t( 'A value for the %s field is required.', array($control->get_label()) ) : $warning;
      return array( $warning );
    }
    return array();
  }

  public static function validate_username( $value, $control, $form, $allowed_name = null, $warning = null )
  {
    if ( isset( $allowed_name ) && ( $value == $allowed_name ) ) {
      return array();
    }
    if ( User::get_by_name( $value ) ) {
      $warning = empty( $warning ) ? _t( 'That username supplied for %s is already in use.', array($control->get_label()) ) : $warning;
      return array( $warning );
    }
    return array();
  }

  public static function validate_groupname( $value, $control, $form, $allowed_name = null, $warning = null )
  {
    if ( isset( $allowed_name ) && ( $value == $allowed_name ) ) {
      return array();
    }
    if ( UserGroup::exists( $value ) ) {
      $warning = empty( $warning ) ? _t( 'The group %s already exists.', array($value) ) : $warning;
      return array( $warning );
    }
    return array();
  }


  public static function validate_same( $value, $control, $form, $matcher, $warning = null )
  {
    if ( $value != $matcher->value ) {
      $warning = empty( $warning ) ? _t( 'The value of the %1$s field must match the value of %2$s.', array( $control->get_label(), $matcher->get_label() ) ) : $warning;
      return array( $warning );
    }
    return array();
  }

  public static function validate_regex( $value, $control, $container, $regex, $warning = null )
  {
    if ( preg_match( $regex, $value ) ) {
      return array();
    }
    else {
      if ( $warning == null ) {
        $warning = _t( 'The value for %s does not meet submission requirements', array($control->get_label()) );
      }
      return array( $warning );
    }
  }

  public static function validate_range( $value, $control, $container, $min, $max, $warning = null )
  {
    if ( $value < $min ) {
      if ( $warning == null ) {
        $warning = _t( 'The value entered for %s is lesser than the minimum of %d.', array( $control->get_label(), $min ) );
      }
      return array( $warning );
    }
    elseif ( $value > $max ) {
      if ( $warning == null ) {
        $warning = _t( 'The value entered for %s is greater than the maximum of %d.', array( $control->get_label(), $max ) );
      }
      return array( $warning );
    }
    else {
      return array();
    }
  }

  public static function validate_wsse( $value, $control, $form, $warning = null )
  {
    if(!Utils::verify_wsse($_POST, true)) {
      $warning = empty( $warning ) ? _t( 'This form must be submitted directly.' ) : $warning;
      return array( $warning );
    }
    return array();
  }
}

?>