ACC SHELL

<?php

/**
 * Homepage presenter.
 */
class ProblemSPrihlasenimPresenter extends BasePresenter
{
    
    public function renderNovyPristup()
    {
        $this->flashMessage('Nejdřív se zkus přihlásit svým emailem a heslem \'duklavysco\'!', 'error');
    }

    protected function createComponentNewAccessForm()
    {
        $form = new Nette\Application\UI\Form;
        
        $form->addText('name', 'Jméno:')
            ->setRequired('Musíš vyplnit jméno!');
        $form->addText('email', 'Email:', 30)
            ->setRequired('Musíš vyplnit email!')
            ->addRule(Nette\Application\UI\Form::EMAIL, 'Zadej platný email!');
        $form->addSubmit('submit', 'Požádat o přístup')
            ->onClick[] = callback($this, 'newAccessFormSubmitted');
        
        return $form;
    }
    
    public function newAccessFormSubmitted(Nette\Forms\Controls\SubmitButton $submitButton)
    {
        $values = $submitButton->getForm()->getValues();
        
        $mail = new Nette\Mail\Message();
        $mail->setFrom("$values->name <$values->email>")
            ->setSubject('Dukla Vyščo - Žádost o nový přístup')
            ->setBody("Uživatel $values->name žádá o přístup na stránky Dukly Vyščo!");
        
        try {
        
            $admins = $this->db->table('uzivatele')->where('role', 'administrator');
            foreach($admins as $admin)
            {
                $mail->addTo($admin->email);
            }

            $mail->send();

            $this->flashMessage('Administrátorům webu byl odeslán email s žádostí.', 'success');
            $this->redirect('Homepage:');
            
        } catch(Nette\InvalidStateException $e) {
            
            $this->flashMessage("Email nemohl být odeslán! " . $e->getMessage(), 'error');
            
        }

    }
    
    protected function createComponentForgottenPasswordForm()
    {
        $form = new Nette\Application\UI\Form;
        
        $form->addText('email', 'Email:')
            ->setRequired('Musíš vyplnit email!')
            ->addRule(Nette\Application\UI\Form::EMAIL, 'Zadej platný email!');
        $form->addSubmit('submit', 'Odeslat nové heslo')
            ->onClick[] = callback($this, 'forgottenPasswordFormSubmitted');
        
        return $form;
    }
    
    public function forgottenPasswordFormSubmitted(Nette\Forms\Controls\SubmitButton $submitButton)
    {
        $values = $submitButton->getForm()->getValues();
        $user = $this->db->table('uzivatele')->where('email', $values->email)->fetch();
        
        if ($user)
        {
            $newPassword = $this->get_random_string('duklavysco', 6);
            $this->db->table('uzivatele')->get($user->id)->update(array('heslo' => md5($newPassword)));
            
            try {
            
                $mail = new Nette\Mail\Message();
                $mail->setFrom("Dukla Vyščo <do-not-reply@duklavysco.cz>")
                    ->setSubject('Dukla Vyščo - Nové heslo')
                    ->setBody("Tvoje nové heslo je: $newPassword")
                    ->addTo($user->email);
                $mail->send();

                $this->flashMessage("Nové heslo bylo odesláno na Tvůj email!", 'success');
                $this->redirect('Homepage:');
                
            } catch(Nette\InvalidStateException $e) {

                $this->flashMessage("Nové heslo se nepodařilo odeslat na mail! " . $e->getMessage(), 'error');
                $this->flashMessage("Nové heslo bylo změněno na '$newPassword' (bez uvozovek)!", 'success');

            }
        }
        else
        {
            $this->template->emailNotFound = true;
        }
    }
    
    private function get_random_string($valid_chars, $length)
    {
        // start with an empty random string
        $random_string = "";

        // count the number of chars in the valid chars string so we know how many choices we have
        $num_valid_chars = strlen($valid_chars);

        // repeat the steps until we've created a string of the right length
        for ($i = 0; $i < $length; $i++)
        {
            // pick a random number from 1 up to the number of valid chars
            $random_pick = mt_rand(1, $num_valid_chars);

            // take the random character out of the string of valid chars
            // subtract 1 from $random_pick because strings are indexed starting at 0, and we started picking at 1
            $random_char = $valid_chars[$random_pick-1];

            // add the randomly-chosen char onto the end of our string so far
            $random_string .= $random_char;
        }

        // return our finished random string
        return $random_string;
    }

}