paste.chapril.org-privatebin/lib/Configuration.php
Andreas Schneider eb32ea1419 Make it possible to change the info text
This makes it possible to change the last part of the info text and
replace it with something individual. E.g pointing to the cmdline
client.

Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
2020-10-11 17:04:08 +02:00

268 lines
9.5 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 1.3.4
*/
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',
'basepath' => '',
'discussion' => true,
'opendiscussion' => false,
'password' => true,
'fileupload' => false,
'burnafterreadingselected' => false,
'defaultformatter' => 'plaintext',
'syntaxhighlightingtheme' => null,
'sizelimit' => 10485760,
'template' => 'bootstrap',
'info' => 'More information on the <a href="https://privatebin.info/">project page</a>.',
'notice' => '',
'languageselection' => false,
'languagedefault' => '',
'urlshortener' => '',
'qrcode' => true,
'icon' => 'identicon',
'cspheader' => 'default-src \'none\'; manifest-src \'self\'; connect-src * blob:; script-src \'self\' \'unsafe-eval\' resource:; 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 allow-downloads',
'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();
$basePath = (getenv('CONFIG_PATH') !== false ? getenv('CONFIG_PATH') : PATH . 'cfg') . DIRECTORY_SEPARATOR;
$configIni = $basePath . 'conf.ini';
$configFile = $basePath . 'conf.php';
// rename INI files to avoid configuration leakage
if (is_readable($configIni)) {
DataStore::prependRename($configIni, $configFile, ';');
// cleanup sample, too
$configIniSample = $configIni . '.sample';
if (is_readable($configIniSample)) {
DataStore::prependRename($configIniSample, $basePath . 'conf.sample.php', ';');
}
}
if (is_readable($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];
}
}