331 lines
10 KiB
PHP
331 lines
10 KiB
PHP
<?php
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use PrivateBin\Persistence\ServerSalt;
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error_reporting(E_ALL | E_STRICT);
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// change this, if your php files and data is outside of your webservers document root
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if (!defined('PUBLIC_PATH')) {
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define('PUBLIC_PATH', '..');
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}
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if (!defined('PATH')) {
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define('PATH', '..' . DIRECTORY_SEPARATOR);
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}
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if (!defined('CONF')) {
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define('CONF', PATH . 'cfg' . DIRECTORY_SEPARATOR . 'conf.ini');
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}
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if (!is_file(CONF)) {
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copy(CONF . '.sample', CONF);
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}
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require PATH . 'vendor/autoload.php';
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Helper::updateSubresourceIntegrity();
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class Helper
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{
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/**
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* example ID of a paste
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*
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* @var string
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*/
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private static $pasteid = '5e9bc25c89fb3bf9';
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/**
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* example paste
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*
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* @var array
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*/
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private static $paste = array(
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'data' => '{"iv":"EN39/wd5Nk8HAiSG2K5AsQ","v":1,"iter":1000,"ks":128,"ts":64,"mode":"ccm","adata":"","cipher":"aes","salt":"QKN1DBXe5PI","ct":"8hA83xDdXjD7K2qfmw5NdA"}',
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'attachment' => '{"iv":"Pd4pOKWkmDTT9uPwVwd5Ag","v":1,"iter":1000,"ks":128,"ts":64,"mode":"ccm","adata":"","cipher":"aes","salt":"ZIUhFTliVz4","ct":"6nOCU3peNDclDDpFtJEBKA"}',
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'attachmentname' => '{"iv":"76MkAtOGC4oFogX/aSMxRA","v":1,"iter":1000,"ks":128,"ts":64,"mode":"ccm","adata":"","cipher":"aes","salt":"ZIUhFTliVz4","ct":"b6Ae/U1xJdsX/+lATud4sQ"}',
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'meta' => array(
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'formatter' => 'plaintext',
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'postdate' => 1344803344,
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'opendiscussion' => true,
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),
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);
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/**
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* example ID of a comment
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*
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* @var string
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*/
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private static $commentid = '5a52eebf11c4c94b';
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/**
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* example comment
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*
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* @var array
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*/
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private static $comment = array(
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'data' => '{"iv":"Pd4pOKWkmDTT9uPwVwd5Ag","v":1,"iter":1000,"ks":128,"ts":64,"mode":"ccm","adata":"","cipher":"aes","salt":"ZIUhFTliVz4","ct":"6nOCU3peNDclDDpFtJEBKA"}',
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'meta' => array(
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'nickname' => '{"iv":"76MkAtOGC4oFogX/aSMxRA","v":1,"iter":1000,"ks":128,"ts":64,"mode":"ccm","adata":"","cipher":"aes","salt":"ZIUhFTliVz4","ct":"b6Ae/U1xJdsX/+lATud4sQ"}',
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'vizhash' => 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAIAAACQkWg2AAABGUlEQVQokWOsl5/94983CNKQMjnxaOePf98MeKwPfNjkLZ3AgARab6b9+PeNEVnDj3/ff/z7ZiHnzsDA8Pv7H2TVPJw8EAYLAwb48OaVgIgYKycLsrYv378wMDB8//qdCVMDRA9EKSsnCwRBxNsepaLboMFlyMDAICAi9uHNK24GITQ/MDAwoNhgIGMLtwGrzegaLjw5jMz9+vUdnN17uwDCQDhJgk0O07yvX9+teDX1x79v6DYIsIjgcgMaYGFgYOBg4kJx2JejkAiBxAw+PzAwMNz4dp6wDXDw4MdNNOl0rWYsNkD89OLXI/xmo9sgzatJjAYmBgYGDiauD3/ePP18nVgb4MF89+M5ZX6js293wUMpnr8KTQMAxsCJnJ30apMAAAAASUVORK5CYII=',
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'postdate' => 1344803528,
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),
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);
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/**
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* JS files and their SRI hashes
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*
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* @var array
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*/
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private static $hashes = array();
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/**
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* get example paste ID
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*
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* @return string
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*/
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public static function getPasteId()
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{
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return self::$pasteid;
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}
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/**
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* get example paste
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*
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* @return array
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*/
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public static function getPaste($meta = array())
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{
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$example = self::getPasteWithAttachment($meta);
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unset($example['attachment'], $example['attachmentname']);
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return $example;
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}
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/**
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* get example paste
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*
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* @return array
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*/
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public static function getPasteWithAttachment($meta = array())
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{
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$example = self::$paste;
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$example['meta']['salt'] = ServerSalt::generate();
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$example['meta'] = array_merge($example['meta'], $meta);
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return $example;
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}
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/**
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* get example paste
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*
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* @return array
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*/
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public static function getPasteAsJson($meta = array())
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{
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$example = self::getPaste();
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// the JSON shouldn't contain the salt
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unset($example['meta']['salt']);
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if (count($meta)) {
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$example['meta'] = $meta;
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}
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$example['comments'] = array();
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$example['comment_count'] = 0;
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$example['comment_offset'] = 0;
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$example['@context'] = 'js/paste.jsonld';
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return json_encode($example);
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}
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/**
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* get example paste ID
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*
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* @return string
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*/
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public static function getCommentId()
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{
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return self::$commentid;
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}
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/**
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* get example comment
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*
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* @return array
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*/
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public static function getComment($meta = array())
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{
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$example = self::$comment;
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$example['meta'] = array_merge($example['meta'], $meta);
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return $example;
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}
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/**
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* get example comment
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*
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* @return array
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*/
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public static function getCommentPost($meta = array())
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{
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$example = self::getComment($meta);
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$example['nickname'] = $example['meta']['nickname'];
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unset($example['meta']['nickname']);
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return $example;
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}
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/**
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* delete directory and all its contents recursively
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*
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* @param string $path
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* @throws Exception
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*/
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public static function rmDir($path)
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{
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$path .= DIRECTORY_SEPARATOR;
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$dir = dir($path);
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while (false !== ($file = $dir->read())) {
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if ($file != '.' && $file != '..') {
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if (is_dir($path . $file)) {
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self::rmDir($path . $file);
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} elseif (is_file($path . $file)) {
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if (!unlink($path . $file)) {
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throw new Exception('Error deleting file "' . $path . $file . '".');
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}
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}
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}
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}
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$dir->close();
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if (!rmdir($path)) {
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throw new Exception('Error deleting directory "' . $path . '".');
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}
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}
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/**
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* create a backup of the config file
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*
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* @return void
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*/
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public static function confBackup()
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{
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if (!is_file(CONF . '.bak') && is_file(CONF)) {
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rename(CONF, CONF . '.bak');
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}
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}
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/**
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* restor backup of the config file
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*
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* @return void
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*/
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public static function confRestore()
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{
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if (is_file(CONF . '.bak')) {
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rename(CONF . '.bak', CONF);
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}
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}
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/**
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* create ini file
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*
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* @param string $pathToFile
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* @param array $values
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*/
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public static function createIniFile($pathToFile, $values)
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{
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if (count($values)) {
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@unlink($pathToFile);
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$ini = fopen($pathToFile, 'a');
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foreach ($values as $section => $options) {
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fwrite($ini, "[$section]" . PHP_EOL);
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foreach ($options as $option => $setting) {
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if (is_null($setting)) {
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continue;
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} elseif (is_string($setting)) {
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$setting = '"' . $setting . '"';
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} elseif (is_array($setting)) {
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foreach ($setting as $key => $value) {
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if (is_null($value)) {
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$value = 'null';
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} elseif (is_string($value)) {
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$value = '"' . $value . '"';
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} else {
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$value = var_export($value, true);
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}
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fwrite($ini, $option . "[$key] = $value" . PHP_EOL);
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}
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continue;
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} else {
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$setting = var_export($setting, true);
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}
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fwrite($ini, "$option = $setting" . PHP_EOL);
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}
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fwrite($ini, PHP_EOL);
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}
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fclose($ini);
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}
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}
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/**
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* a var_export that returns arrays without line breaks
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* by linus@flowingcreativity.net via php.net
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*
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* @param mixed $var
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* @param bool $return
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* @return void|string
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*/
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public static function varExportMin($var, $return = false)
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{
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if (is_array($var)) {
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$toImplode = array();
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foreach ($var as $key => $value) {
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$toImplode[] = var_export($key, true) . ' => ' . self::varExportMin($value, true);
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}
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$code = 'array(' . implode(', ', $toImplode) . ')';
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if ($return) {
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return $code;
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} else {
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echo $code;
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}
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} else {
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return var_export($var, $return);
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}
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}
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/**
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* update all templates with the latest SRI hashes for all JS files
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*
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* @return void
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*/
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public static function updateSubresourceIntegrity()
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{
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$dir = dir(PATH . 'js');
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while (false !== ($file = $dir->read())) {
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if (substr($file, -3) === '.js') {
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self::$hashes[$file] = base64_encode(
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hash('sha512', file_get_contents(
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PATH . 'js' . DIRECTORY_SEPARATOR . $file
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), true)
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);
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}
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}
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$dir = dir(PATH . 'tpl');
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while (false !== ($file = $dir->read())) {
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if (substr($file, -4) === '.php') {
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$content = file_get_contents(
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PATH . 'tpl' . DIRECTORY_SEPARATOR . $file
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);
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$content = preg_replace_callback(
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'#<script type="text/javascript" src="js/([a-z0-9.-]+.js)([^"]*)"( integrity="[^"]+" crossorigin="[^"]+")?></script>#',
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function ($matches) {
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if (array_key_exists($matches[1], Helper::$hashes)) {
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return '<script type="text/javascript" src="js/' .
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$matches[1] . $matches[2] .
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'" integrity="sha512-' . Helper::$hashes[$matches[1]] .
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'" crossorigin="anonymous"></script>';
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} else {
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return $matches[0];
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}
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},
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$content
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);
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file_put_contents(
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PATH . 'tpl' . DIRECTORY_SEPARATOR . $file,
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$content
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);
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}
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}
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}
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}
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