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<?php
/**
* poche, a read it later open source system
*
* @category poche
* @author Nicolas Lœuillet <support@inthepoche.com>
* @copyright 2013
* @license http://www.wtfpl.net/ see COPYING file
*/
class Tools
{
public static function initPhp()
{
define('START_TIME', microtime(true));
if (phpversion() < 5) {
die(_('Oops, it seems you don\'t have PHP 5.'));
}
error_reporting(E_ALL);
function stripslashesDeep($value) {
return is_array($value)
? array_map('stripslashesDeep', $value)
: stripslashes($value);
}
if (get_magic_quotes_gpc()) {
$_POST = array_map('stripslashesDeep', $_POST);
$_GET = array_map('stripslashesDeep', $_GET);
$_COOKIE = array_map('stripslashesDeep', $_COOKIE);
}
ob_start();
register_shutdown_function('ob_end_flush');
}
public static function getPocheUrl()
{
$https = (!empty($_SERVER['HTTPS'])
&& (strtolower($_SERVER['HTTPS']) == 'on'))
|| (isset($_SERVER["SERVER_PORT"])
&& $_SERVER["SERVER_PORT"] == '443') // HTTPS detection.
|| (isset($_SERVER["SERVER_PORT"]) //Custom HTTPS port detection
&& $_SERVER["SERVER_PORT"] == SSL_PORT);
$serverport = (!isset($_SERVER["SERVER_PORT"])
|| $_SERVER["SERVER_PORT"] == '80'
|| ($https && $_SERVER["SERVER_PORT"] == '443')
|| ($https && $_SERVER["SERVER_PORT"]==SSL_PORT) //Custom HTTPS port detection
? '' : ':' . $_SERVER["SERVER_PORT"]);
$scriptname = str_replace('/index.php', '/', $_SERVER["SCRIPT_NAME"]);
if (!isset($_SERVER["HTTP_HOST"])) {
return $scriptname;
}
return 'http' . ($https ? 's' : '') . '://'
. $_SERVER["HTTP_HOST"] . $serverport . $scriptname;
}
public static function redirect($url = '')
{
if ($url === '') {
$url = (empty($_SERVER['HTTP_REFERER'])?'?':$_SERVER['HTTP_REFERER']);
if (isset($_POST['returnurl'])) {
$url = $_POST['returnurl'];
}
}
# prevent loop
if (empty($url) || parse_url($url, PHP_URL_QUERY) === $_SERVER['QUERY_STRING']) {
$url = Tools::getPocheUrl();
}
if (substr($url, 0, 1) !== '?') {
$ref = Tools::getPocheUrl();
if (substr($url, 0, strlen($ref)) !== $ref) {
$url = $ref;
}
}
self::logm('redirect to ' . $url);
header('Location: '.$url);
exit();
}
public static function getTplFile($view)
{
$views = array(
'install', 'import', 'export', 'config', 'tags',
'edit-tags', 'view', 'login', 'error', 'tag'
);
if (in_array($view, $views)) {
return $view . '.twig';
}
return 'home.twig';
}
public static function getFile($url)
{
$timeout = 15;
$useragent = "Mozilla/5.0 (Windows NT 5.1; rv:18.0) Gecko/20100101 Firefox/18.0";
if (in_array ('curl', get_loaded_extensions())) {
# Fetch feed from URL
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_TIMEOUT, $timeout);
if (!ini_get('open_basedir') && !ini_get('safe_mode')) {
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
}
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_HEADER, false);
# for ssl, do not verified certificate
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($curl, CURLOPT_AUTOREFERER, TRUE );
# FeedBurner requires a proper USER-AGENT...
curl_setopt($curl, CURL_HTTP_VERSION_1_1, true);
curl_setopt($curl, CURLOPT_ENCODING, "gzip, deflate");
curl_setopt($curl, CURLOPT_USERAGENT, $useragent);
$data = curl_exec($curl);
$httpcode = curl_getinfo($curl, CURLINFO_HTTP_CODE);
$httpcodeOK = isset($httpcode) and ($httpcode == 200 or $httpcode == 301);
curl_close($curl);
} else {
# create http context and add timeout and user-agent
$context = stream_context_create(
array(
'http' => array(
'timeout' => $timeout,
'header' => "User-Agent: " . $useragent,
'follow_location' => true
),
'ssl' => array(
'verify_peer' => false,
'allow_self_signed' => true
)
)
);
# only download page lesser than 4MB
$data = @file_get_contents($url, false, $context, -1, 4000000);
if (isset($http_response_header) and isset($http_response_header[0])) {
$httpcodeOK = isset($http_response_header) and isset($http_response_header[0]) and ((strpos($http_response_header[0], '200 OK') !== FALSE) or (strpos($http_response_header[0], '301 Moved Permanently') !== FALSE));
}
}
# if response is not empty and response is OK
if (isset($data) and isset($httpcodeOK) and $httpcodeOK) {
# take charset of page and get it
preg_match('#<meta .*charset=.*>#Usi', $data, $meta);
# if meta tag is found
if (!empty($meta[0])) {
preg_match('#charset="?(.*)"#si', $meta[0], $encoding);
# if charset is found set it otherwise, set it to utf-8
$html_charset = (!empty($encoding[1])) ? strtolower($encoding[1]) : 'utf-8';
if (empty($encoding[1])) $encoding[1] = 'utf-8';
} else {
$html_charset = 'utf-8';
$encoding[1] = '';
}
# replace charset of url to charset of page
$data = str_replace('charset=' . $encoding[1], 'charset=' . $html_charset, $data);
return $data;
}
else {
return FALSE;
}
}
public static function renderJson($data)
{
header('Cache-Control: no-cache, must-revalidate');
header('Expires: Sat, 26 Jul 1997 05:00:00 GMT');
header('Content-type: application/json; charset=UTF-8');
echo json_encode($data);
exit();
}
public static function logm($message)
{
if (DEBUG_POCHE) {
$t = strval(date('Y/m/d_H:i:s')) . ' - ' . $_SERVER["REMOTE_ADDR"] . ' - ' . strval($message) . "\n";
file_put_contents(CACHE . '/log.txt', $t, FILE_APPEND);
error_log('DEBUG POCHE : ' . $message);
}
}
public static function encodeString($string)
{
return sha1($string . SALT);
}
public static function checkVar($var, $default = '')
{
return ((isset ($_REQUEST["$var"])) ? htmlentities($_REQUEST["$var"]) : $default);
}
public static function getDomain($url)
{
return parse_url($url, PHP_URL_HOST);
}
public static function getReadingTime($text) {
$word = str_word_count(strip_tags($text));
$minutes = floor($word / 200);
$seconds = floor($word % 200 / (200 / 60));
$time = array('minutes' => $minutes, 'seconds' => $seconds);
return $minutes;
}
public static function getDocLanguage($userlanguage) {
$lang = explode('.', $userlanguage);
return str_replace('_', '-', $lang[0]);
}
public static function status($status_code)
{
if (strpos(php_sapi_name(), 'apache') !== false) {
header('HTTP/1.0 '.$status_code);
}
else {
header('Status: '.$status_code);
}
}
public static function download_db() {
header('Content-Disposition: attachment; filename="poche.sqlite.gz"');
self::status(200);
header('Content-Transfer-Encoding: binary');
header('Content-Type: application/octet-stream');
echo gzencode(file_get_contents(STORAGE_SQLITE));
exit;
}
}
|
