mirror of
https://github.com/wallabag/wallabag.git
synced 2024-12-16 18:30:17 +01:00
428 lines
13 KiB
PHP
Executable File
428 lines
13 KiB
PHP
Executable File
<?php
|
|
/**
|
|
* wallabag, self hostable application allowing you to not miss any content anymore
|
|
*
|
|
* @category wallabag
|
|
* @author Nicolas Lœuillet <nicolas@loeuillet.org>
|
|
* @copyright 2013
|
|
* @license http://opensource.org/licenses/MIT see COPYING file
|
|
*/
|
|
|
|
final class Tools
|
|
{
|
|
/**
|
|
* Initialize PHP environment
|
|
*/
|
|
public static function initPhp()
|
|
{
|
|
define('START_TIME', microtime(true));
|
|
|
|
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');
|
|
}
|
|
|
|
/**
|
|
* Get wallabag instance URL
|
|
*
|
|
* @return string
|
|
*/
|
|
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
|
|
&& $_SERVER["SERVER_PORT"] == SSL_PORT)
|
|
|| (isset($_SERVER['HTTP_X_FORWARDED_PROTO'])
|
|
&& $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https');
|
|
|
|
$serverport = (!isset($_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;
|
|
}
|
|
|
|
$host = (isset($_SERVER['HTTP_X_FORWARDED_HOST']) ? $_SERVER['HTTP_X_FORWARDED_HOST'] : (isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : $_SERVER['SERVER_NAME']));
|
|
|
|
if (strpos($host, ':') !== false) {
|
|
$serverport = '';
|
|
}
|
|
|
|
return 'http' . ($https ? 's' : '') . '://'
|
|
. $host . $serverport . $scriptname;
|
|
}
|
|
|
|
/**
|
|
* Redirects to a URL
|
|
*
|
|
* @param string $url
|
|
*/
|
|
public static function redirect($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();
|
|
}
|
|
|
|
/**
|
|
* Returns name of the template file to display
|
|
*
|
|
* @param $view
|
|
* @return string
|
|
*/
|
|
public static function getTplFile($view)
|
|
{
|
|
$views = array(
|
|
'install', 'import', 'export', 'config', 'tags',
|
|
'edit-tags', 'view', 'login', 'error'
|
|
);
|
|
|
|
return (in_array($view, $views) ? $view . '.twig' : 'home.twig');
|
|
}
|
|
|
|
/**
|
|
* Download a file (typically, for downloading pictures on web server)
|
|
*
|
|
* @param $url
|
|
* @return bool|mixed|string
|
|
*/
|
|
public static function getFile($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;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Headers for JSON export
|
|
*
|
|
* @param $data
|
|
*/
|
|
public static function renderJson($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();
|
|
}
|
|
|
|
/**
|
|
* Create new line in log file
|
|
*
|
|
* @param $message
|
|
*/
|
|
public static function logm($message)
|
|
{
|
|
if (DEBUG_POCHE && php_sapi_name() != 'cli') {
|
|
$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);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Encode a URL by using a salt
|
|
*
|
|
* @param $string
|
|
* @return string
|
|
*/
|
|
public static function encodeString($string)
|
|
{
|
|
return sha1($string . SALT);
|
|
}
|
|
|
|
/**
|
|
* Cleans a variable
|
|
*
|
|
* @param $var
|
|
* @param string $default
|
|
* @return string
|
|
*/
|
|
public static function checkVar($var, $default = '')
|
|
{
|
|
return ((isset($_REQUEST["$var"])) ? htmlentities($_REQUEST["$var"]) : $default);
|
|
}
|
|
|
|
/**
|
|
* Returns the domain name for a URL
|
|
*
|
|
* @param $url
|
|
* @return string
|
|
*/
|
|
public static function getDomain($url)
|
|
{
|
|
return parse_url($url, PHP_URL_HOST);
|
|
}
|
|
|
|
/**
|
|
* For a given text, we calculate reading time for an article
|
|
*
|
|
* @param $text
|
|
* @return float
|
|
*/
|
|
public static function getReadingTime($text)
|
|
{
|
|
return floor(str_word_count(strip_tags($text)) / 200);
|
|
}
|
|
|
|
/**
|
|
* Returns the correct header for a status code
|
|
*
|
|
* @param $status_code
|
|
*/
|
|
private static function _status($status_code)
|
|
{
|
|
if (strpos(php_sapi_name(), 'apache') !== false) {
|
|
|
|
header('HTTP/1.0 '.$status_code);
|
|
}
|
|
else {
|
|
|
|
header('Status: '.$status_code);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Download the sqlite database
|
|
*/
|
|
public static function downloadDb()
|
|
{
|
|
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;
|
|
}
|
|
|
|
/**
|
|
* Get the content for a given URL (by a call to FullTextFeed)
|
|
*
|
|
* @param Url $url
|
|
* @return mixed
|
|
*/
|
|
public static function getPageContent(Url $url)
|
|
{
|
|
// Saving and clearing context
|
|
$REAL = array();
|
|
foreach( $GLOBALS as $key => $value ) {
|
|
if( $key != 'GLOBALS' && $key != '_SESSION' && $key != 'HTTP_SESSION_VARS' ) {
|
|
$GLOBALS[$key] = array();
|
|
$REAL[$key] = $value;
|
|
}
|
|
}
|
|
// Saving and clearing session
|
|
if (isset($_SESSION)) {
|
|
$REAL_SESSION = array();
|
|
foreach( $_SESSION as $key => $value ) {
|
|
$REAL_SESSION[$key] = $value;
|
|
unset($_SESSION[$key]);
|
|
}
|
|
}
|
|
|
|
// Running code in different context
|
|
$scope = function() {
|
|
extract( func_get_arg(1) );
|
|
$_GET = $_REQUEST = array(
|
|
"url" => $url->getUrl(),
|
|
"max" => 5,
|
|
"links" => "preserve",
|
|
"exc" => "",
|
|
"format" => "json",
|
|
"submit" => "Create Feed"
|
|
);
|
|
ob_start();
|
|
require func_get_arg(0);
|
|
$json = ob_get_contents();
|
|
ob_end_clean();
|
|
return $json;
|
|
};
|
|
|
|
$json = $scope("inc/3rdparty/makefulltextfeed.php", array("url" => $url));
|
|
|
|
// Clearing and restoring context
|
|
foreach ($GLOBALS as $key => $value) {
|
|
if($key != "GLOBALS" && $key != "_SESSION" ) {
|
|
unset($GLOBALS[$key]);
|
|
}
|
|
}
|
|
foreach ($REAL as $key => $value) {
|
|
$GLOBALS[$key] = $value;
|
|
}
|
|
|
|
// Clearing and restoring session
|
|
if (isset($REAL_SESSION)) {
|
|
foreach($_SESSION as $key => $value) {
|
|
unset($_SESSION[$key]);
|
|
}
|
|
|
|
foreach($REAL_SESSION as $key => $value) {
|
|
$_SESSION[$key] = $value;
|
|
}
|
|
}
|
|
|
|
return json_decode($json, true);
|
|
}
|
|
|
|
/**
|
|
* Returns whether we handle an AJAX (XMLHttpRequest) request.
|
|
*
|
|
* @return boolean whether we handle an AJAX (XMLHttpRequest) request.
|
|
*/
|
|
public static function isAjaxRequest()
|
|
{
|
|
return isset($_SERVER['HTTP_X_REQUESTED_WITH']) && $_SERVER['HTTP_X_REQUESTED_WITH']==='XMLHttpRequest';
|
|
}
|
|
|
|
/*
|
|
* Empty cache folder
|
|
*/
|
|
public static function emptyCache()
|
|
{
|
|
$files = new RecursiveIteratorIterator(
|
|
new RecursiveDirectoryIterator(CACHE, RecursiveDirectoryIterator::SKIP_DOTS),
|
|
RecursiveIteratorIterator::CHILD_FIRST
|
|
);
|
|
|
|
foreach ($files as $fileInfo) {
|
|
$todo = ($fileInfo->isDir() ? 'rmdir' : 'unlink');
|
|
$todo($fileInfo->getRealPath());
|
|
}
|
|
|
|
Tools::logm('empty cache');
|
|
Tools::redirect();
|
|
}
|
|
|
|
public static function generateToken()
|
|
{
|
|
if (ini_get('open_basedir') === '') {
|
|
if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
|
|
// alternative to /dev/urandom for Windows
|
|
$token = substr(base64_encode(uniqid(mt_rand(), true)), 0, 20);
|
|
} else {
|
|
$token = substr(base64_encode(file_get_contents('/dev/urandom', false, null, 0, 20)), 0, 15);
|
|
}
|
|
}
|
|
else {
|
|
$token = substr(base64_encode(uniqid(mt_rand(), true)), 0, 20);
|
|
}
|
|
|
|
return str_replace('+', '', $token);
|
|
}
|
|
|
|
}
|