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2168 tom.houday 1 
<?php
2 
/**
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 * ALCASAR tickets generator
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 *
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 * Generate tickets of users.
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 * Use wkhtmltopdf to convert HTML to PDF.
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 *
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 * @author    Tom Houdayer
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 * @copyright Copyright (C) ALCASAR (http://www.alcasar.net)
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 * @license   GPL-3.0
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 * @version   $Id: TicketsGenerator.php 2168 2017-04-18 17:39:54Z tom.houdayer $
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 */
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class TicketsGenerator
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{
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	/**
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	 * @var string Path to wkhtmltopdf executable.
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	 */
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	private $wkhtmltopdfPath = 'wkhtmltopdf';
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	/**
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	 * @var object[] Tickets of users.
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	 */
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	private $tickets = [];
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	/**
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	 * @var string Language of tickets.
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	 */
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	private $language = 'en';
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	/**
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	 * @var string HTML template filename.
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	 */
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	private $template = __DIR__ . '/' . 'tickets.template.php';
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	/**
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	 * @var string|null HTML generated filename (null if not generated).
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	 */
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	private $htmlGeneratedFilename;
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	/**
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	 * Constructor.
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	 *
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	 * @param array $options Options of the instance.
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	 */
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	public function __construct($options = [])
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	{
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		if (isset($options['wkhtmltopdfPath'])) {
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			$this->wkhtmltopdfPath = $options['wkhtmltopdfPath'];
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		}
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		if (isset($options['language'])) {
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			$this->language = $options['language'];
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		}
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		if (isset($options['template'])) {
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			$this->template = $options['template'];
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		}
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	}
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	/**
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	 * Add a ticket.
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	 *
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	 * @param array $user      User.
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	 * @param bool  $duplicate Print a duplicated ticket if true.
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	 */
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	public function addTicket($user, $duplicate = true)
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	{
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		$this->tickets[] = (object) [
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			'username'        => $user['username'],
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			'password'        => $user['password'],
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			'maxAllSession'   => $user['maxAllSession'],
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			'sessionTimeout'  => $user['sessionTimeout'],
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			'maxDailySession' => $user['maxDailySession'],
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			'expiration'      => ((isset($user['expiration'])) ? $user['expiration'] : '-'),
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			'isDuplicate'     => false
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		];
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		if ($duplicate) {
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			$this->tickets[] = (object) [
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				'username'        => $user['username'],
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				'password'        => $user['password'],
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				'maxAllSession'   => $user['maxAllSession'],
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				'sessionTimeout'  => $user['sessionTimeout'],
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				'maxDailySession' => $user['maxDailySession'],
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				'expiration'      => ((isset($user['expiration'])) ? $user['expiration'] : '-'),
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				'isDuplicate'     => true
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			];
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		}
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	}
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	/**
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	 * Generate and save the PDF to the filesystem.
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	 *
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	 * @param string $filename File name of the generated PDF.
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	 *
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	 * @return bool Result of the convertion (true if success).
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	 */
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	public function saveAs($filename)
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	{
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		if (file_exists($filename)) {
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			return false;
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		}
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		// TODO: Regex validation of $filename
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		if (!$this->generateHtml("$filename.html")) {
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			return false;
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		}
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		$command = $this->wkhtmltopdfPath . ' --quiet --disable-smart-shrinking --footer-font-size 8 --footer-left "ALCASAR" --footer-center "[page] / [toPage]" --footer-right "' . date('Y-m-d H:i:s') . '" ' . escapeshellarg("$filename.html") . ' ' . escapeshellarg($filename);
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		$output;
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		$exitCode;
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		exec($command, $output, $exitCode);
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		unlink("$filename.html");
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		if ($exitCode !== 0) {
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			return false;
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		}
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		return true;
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	}
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	/**
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	 * Send the PDF to the  browser.
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	 *
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	 * @return bool Result of the convertion (true if success).
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	 */
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	public function output()
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	{
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		$filename = tempnam('/tmp', 'ALCASAR-PDF_');
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		unlink($filename);
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		if (!$this->saveAs($filename)) {
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			return false;
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		}
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		header('Content-Type: application/pdf');
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		header('Content-Disposition: inline; filename="tickets.pdf"');
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		header('Cache-Control: private, max-age=0, must-revalidate');
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		header('Pragma: public');
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		readfile($filename);
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		unlink($filename);
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		return true;
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	}
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	/**
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	 * Generate HTML document from the template.
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	 *
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	 * @param string $output File name of the generated template.
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	 *
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	 * @return bool Result of the generation (true if success).
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	 */
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	private function generateHtml($output)
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	{
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		if (file_exists($output)) {
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			return false;
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		}
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		if (!file_exists($this->template)) {
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			return false;
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		}
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		$language = $this->language;
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		$users    = $this->tickets;
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		ob_start();
168 
		require($this->template);
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		$content = ob_get_clean();
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		$ret = file_put_contents($output, $content);
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		if ($ret === false) {
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			return false;
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		}
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		return true;
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	}
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}