PrivateBin\Configuration::__construct()

Complexity

Conditions	35
Paths	434

Size

Total Lines	139
Code Lines	93

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	85
CRAP Score	36.4302

Importance

Changes

0

<?php
    public function __construct()
    {
        $basePaths  = array();
        $config     = array();
        $configPath = getenv('CONFIG_PATH');
        if ($configPath !== false && !empty($configPath)) {
            $basePaths[] = $configPath;
        }
        $basePaths[] = PATH . 'cfg';
        foreach ($basePaths as $basePath) {
            $configFile = $basePath . DIRECTORY_SEPARATOR . 'conf.php';
            if (is_readable($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);
                    }
                }
                break;
            }
        }

        $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),
                );
            } elseif (
                $section == 'model_options' && in_array(
                    $this->_configuration['model']['class'],
                    array('GoogleCloudStorage')
                )
            ) {
                $values = array(
                    'bucket'     => getenv('PRIVATEBIN_GCS_BUCKET') ? getenv('PRIVATEBIN_GCS_BUCKET') : null,
                    'prefix'     => 'pastes',
                    'uniformacl' => false,
                );
            } elseif (
                $section == 'model_options' && in_array(
                    $this->_configuration['model']['class'],
                    array('S3Storage')
                )
            ) {
                $values = array(
                    'region'                  => null,
                    'version'                 => null,
                    'endpoint'                => null,
                    'accesskey'               => null,
                    'secretkey'               => null,
                    'use_path_style_endpoint' => null,
                    'bucket'                  => null,
                    'prefix'                  => '',
                );
            }

            // "*_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']);
        }

        // ensure the basepath ends in a slash, if one is set
        if (
            !empty($this->_configuration['main']['basepath']) &&
            substr_compare($this->_configuration['main']['basepath'], '/', -1) !== 0
        ) {
            $this->_configuration['main']['basepath'] .= '/';
        }