Mail.php

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<?php

namespace Rsi\Fred\User\Authenticator;

class Mail extends \Rsi\Fred\User\Authenticator{

  public $tokenLength = 8;
  public $tokenChars = '234678ACEFGHJKLMNPQRTUVWXYZ';
  public $tokenTime = 300; //!< Time (in seconds) for which the token is valid.
  public $tokenTries = 5; //!< Maximum number of times to enter the correct token.

  public $mailFrom = null; //!< Mail message sender address (default when empty).
  public $mailSubject = 'Authentication token';
  public $mailBody = '[token]';
  public $mailHtml = false; //!< True when the message body is in HTML format.

  protected function check(){
    return null;
  }

  protected function tags($token){
    return ['token' => $token];
  }

  public function token($email){
    if(!$email) $this->checked = false;
    elseif($this->session->time < time() - $this->tokenTime){
      $this->session->time = time();
      $this->session->tries = 0;
      $tags = $this->tags($this->session->token = \Rsi\Str::random($this->tokenLength,$this->tokenChars));
      $trans = $this->component('trans');
      $this->component('mail')->send($this->mailFrom,$email,$trans->str($this->mailSubject,$tags),$trans->str($this->mailBody,$tags),$this->mailHtml);
    }
    return $this->session->token;
  }

  public function verify($token){
    $this->verified($token && !strcasecmp($this->session->token,$token) && ($this->session->time > time() - $this->tokenTime));
    if(++$this->session->tries >= $this->tokenTries) $this->session->time = null;
    return $this->checked;
  }

}