paste.chapril.org-privatebin/lib/Configuration.php
Haocen Xu ab75b183fb
Fix click on new paste on clone paste editing view not removing custom
attachment

Fix cloning paste with attachment

Update CSP in sample and default configuration

Ensure clone paste also clone format

Fix clone button hiding logic when paste is burn after read

Remove attachment name when new paste clicked on

Enable file operation only when editing
2019-08-25 02:16:58 -04:00

265 lines
9.2 KiB
PHP

<?php
/**
* PrivateBin
*
* a zero-knowledge paste bin
*
* @link https://github.com/PrivateBin/PrivateBin
* @copyright 2012 Sébastien SAUVAGE (sebsauvage.net)
* @license https://www.opensource.org/licenses/zlib-license.php The zlib/libpng License
* @version 1.3
*/
namespace PrivateBin;
use Exception;
use PDO;
use PrivateBin\Persistence\DataStore;
/**
* Configuration
*
* parses configuration file, ensures default values present
*/
class Configuration
{
/**
* parsed configuration
*
* @var array
*/
private $_configuration;
/**
* default configuration
*
* @var array
*/
private static $_defaults = array(
'main' => array(
'name' => 'PrivateBin',
'discussion' => true,
'opendiscussion' => false,
'password' => true,
'fileupload' => false,
'burnafterreadingselected' => false,
'defaultformatter' => 'plaintext',
'syntaxhighlightingtheme' => null,
'sizelimit' => 2097152,
'template' => 'bootstrap',
'notice' => '',
'languageselection' => false,
'languagedefault' => '',
'urlshortener' => '',
'qrcode' => true,
'icon' => 'identicon',
'cspheader' => 'default-src \'none\'; manifest-src \'self\'; connect-src * blob:; script-src \'self\' \'unsafe-eval\'; style-src \'self\'; font-src \'self\'; img-src \'self\' data: blob:; media-src blob:; object-src blob:; sandbox allow-same-origin allow-scripts allow-forms allow-popups allow-modals',
'zerobincompatibility' => false,
'httpwarning' => true,
'compression' => 'zlib',
),
'expire' => array(
'default' => '1week',
),
'expire_options' => array(
'5min' => 300,
'10min' => 600,
'1hour' => 3600,
'1day' => 86400,
'1week' => 604800,
'1month' => 2592000,
'1year' => 31536000,
'never' => 0,
),
'formatter_options' => array(
'plaintext' => 'Plain Text',
'syntaxhighlighting' => 'Source Code',
'markdown' => 'Markdown',
),
'traffic' => array(
'limit' => 10,
'header' => null,
'dir' => 'data',
),
'purge' => array(
'limit' => 300,
'batchsize' => 10,
'dir' => 'data',
),
'model' => array(
'class' => 'Filesystem',
),
'model_options' => array(
'dir' => 'data',
),
);
/**
* parse configuration file and ensure default configuration values are present
*
* @throws Exception
*/
public function __construct()
{
$config = array();
$configFile = PATH . 'cfg' . DIRECTORY_SEPARATOR . 'conf.php';
$configIni = PATH . 'cfg' . DIRECTORY_SEPARATOR . 'conf.ini';
// rename INI files to avoid configuration leakage
if (is_readable($configIni)) {
DataStore::prependRename($configIni, $configFile, ';');
// cleanup sample, too
$configIniSample = $configIni . '.sample';
if (is_readable($configIniSample)) {
DataStore::prependRename($configIniSample, PATH . 'cfg' . DIRECTORY_SEPARATOR . 'conf.sample.php', ';');
}
}
if (is_readable($configFile)) {
$config = parse_ini_file($configFile, true);
foreach (array('main', 'model', 'model_options') as $section) {
if (!array_key_exists($section, $config)) {
throw new Exception(I18n::_('PrivateBin requires configuration section [%s] to be present in configuration file.', $section), 2);
}
}
}
$opts = '_options';
foreach (self::getDefaults() as $section => $values) {
// fill missing sections with default values
if (!array_key_exists($section, $config) || count($config[$section]) == 0) {
$this->_configuration[$section] = $values;
if (array_key_exists('dir', $this->_configuration[$section])) {
$this->_configuration[$section]['dir'] = PATH . $this->_configuration[$section]['dir'];
}
continue;
}
// provide different defaults for database model
elseif (
$section == 'model_options' && in_array(
$this->_configuration['model']['class'],
array('Database', 'privatebin_db', 'zerobin_db')
)
) {
$values = array(
'dsn' => 'sqlite:' . PATH . 'data' . DIRECTORY_SEPARATOR . 'db.sq3',
'tbl' => null,
'usr' => null,
'pwd' => null,
'opt' => array(PDO::ATTR_PERSISTENT => true),
);
}
// "*_options" sections don't require all defaults to be set
if (
$section !== 'model_options' &&
($from = strlen($section) - strlen($opts)) >= 0 &&
strpos($section, $opts, $from) !== false
) {
if (is_int(current($values))) {
$config[$section] = array_map('intval', $config[$section]);
}
$this->_configuration[$section] = $config[$section];
}
// check for missing keys and set defaults if necessary
else {
foreach ($values as $key => $val) {
if ($key == 'dir') {
$val = PATH . $val;
}
$result = $val;
if (array_key_exists($key, $config[$section])) {
if ($val === null) {
$result = $config[$section][$key];
} elseif (is_bool($val)) {
$val = strtolower($config[$section][$key]);
if (in_array($val, array('true', 'yes', 'on'))) {
$result = true;
} elseif (in_array($val, array('false', 'no', 'off'))) {
$result = false;
} else {
$result = (bool) $config[$section][$key];
}
} elseif (is_int($val)) {
$result = (int) $config[$section][$key];
} elseif (is_string($val) && !empty($config[$section][$key])) {
$result = (string) $config[$section][$key];
}
}
$this->_configuration[$section][$key] = $result;
}
}
}
// support for old config file format, before the fork was renamed and PSR-4 introduced
$this->_configuration['model']['class'] = str_replace(
'zerobin_', 'privatebin_',
$this->_configuration['model']['class']
);
$this->_configuration['model']['class'] = str_replace(
array('privatebin_data', 'privatebin_db'),
array('Filesystem', 'Database'),
$this->_configuration['model']['class']
);
// ensure a valid expire default key is set
if (!array_key_exists($this->_configuration['expire']['default'], $this->_configuration['expire_options'])) {
$this->_configuration['expire']['default'] = key($this->_configuration['expire_options']);
}
}
/**
* get configuration as array
*
* @return array
*/
public function get()
{
return $this->_configuration;
}
/**
* get default configuration as array
*
* @return array
*/
public static function getDefaults()
{
return self::$_defaults;
}
/**
* get a key from the configuration, typically the main section or all keys
*
* @param string $key
* @param string $section defaults to main
* @throws Exception
* @return mixed
*/
public function getKey($key, $section = 'main')
{
$options = $this->getSection($section);
if (!array_key_exists($key, $options)) {
throw new Exception(I18n::_('Invalid data.') . " $section / $key", 4);
}
return $this->_configuration[$section][$key];
}
/**
* get a section from the configuration, must exist
*
* @param string $section
* @throws Exception
* @return mixed
*/
public function getSection($section)
{
if (!array_key_exists($section, $this->_configuration)) {
throw new Exception(I18n::_('%s requires configuration section [%s] to be present in configuration file.', I18n::_($this->getKey('name')), $section), 3);
}
return $this->_configuration[$section];
}
}