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Current File : //hermes/bosweb01/sb_web/b2920/davidportillo.com/bienvenidoaparaguay/phpMboreMin/libraries/Config.class.php
<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
 * Configuration handling.
 *
 * @package PhpMyAdmin
 */

if (! defined('PHPMYADMIN')) {
    exit;
}

/**
 * Load vendor configuration.
 */
require_once './libraries/vendor_config.php';

/**
 * Indication for error handler (see end of this file).
 */
$GLOBALS['pma_config_loading'] = false;

/**
 * Configuration class
 *
 * @package PhpMyAdmin
 */
class PMA_Config
{
    /**
     * @var string  default config source
     */
    var $default_source = './libraries/config.default.php';

    /**
     * @var array   default configuration settings
     */
    var $default = array();

    /**
     * @var array   configuration settings, without user preferences applied
     */
    var $base_settings = array();

    /**
     * @var array   configuration settings
     */
    var $settings = array();

    /**
     * @var string  config source
     */
    var $source = '';

    /**
     * @var int     source modification time
     */
    var $source_mtime = 0;
    var $default_source_mtime = 0;
    var $set_mtime = 0;

    /**
     * @var boolean
     */
    var $error_config_file = false;

    /**
     * @var boolean
     */
    var $error_config_default_file = false;

    /**
     * @var boolean
     */
    var $error_pma_uri = false;

    /**
     * @var array
     */
    var $default_server = array();

    /**
     * @var boolean whether init is done or not
     * set this to false to force some initial checks
     * like checking for required functions
     */
    var $done = false;

    /**
     * constructor
     *
     * @param string $source source to read config from
     */
    function __construct($source = null)
    {
        $this->settings = array();

        // functions need to refresh in case of config file changed goes in
        // PMA_Config::load()
        $this->load($source);

        // other settings, independent from config file, comes in
        $this->checkSystem();

        $this->isHttps();

        $this->base_settings = $this->settings;
    }

    /**
     * sets system and application settings
     *
     * @return void
     */
    function checkSystem()
    {
        $this->set('PMA_VERSION', '4.3.9');
        /**
         * @deprecated
         */
        $this->set('PMA_THEME_VERSION', 2);
        /**
         * @deprecated
         */
        $this->set('PMA_THEME_GENERATION', 2);

        $this->checkPhpVersion();
        $this->checkWebServerOs();
        $this->checkWebServer();
        $this->checkGd2();
        $this->checkClient();
        $this->checkUpload();
        $this->checkUploadSize();
        $this->checkOutputCompression();
    }

    /**
     * whether to use gzip output compression or not
     *
     * @return void
     */
    function checkOutputCompression()
    {
        // If zlib output compression is set in the php configuration file, no
        // output buffering should be run
        if (@ini_get('zlib.output_compression')) {
            $this->set('OBGzip', false);
        }

        // disable output-buffering (if set to 'auto') for IE6, else enable it.
        if (strtolower($this->get('OBGzip')) == 'auto') {
            if ($this->get('PMA_USR_BROWSER_AGENT') == 'IE'
                && $this->get('PMA_USR_BROWSER_VER') >= 6
                && $this->get('PMA_USR_BROWSER_VER') < 7
            ) {
                $this->set('OBGzip', false);
            } else {
                $this->set('OBGzip', true);
            }
        }
    }

    /**
     * Determines platform (OS), browser and version of the user
     * Based on a phpBuilder article:
     *
     * @see http://www.phpbuilder.net/columns/tim20000821.php
     *
     * @return void
     */
    function checkClient()
    {
        if (PMA_getenv('HTTP_USER_AGENT')) {
            $HTTP_USER_AGENT = PMA_getenv('HTTP_USER_AGENT');
        } else {
            $HTTP_USER_AGENT = '';
        }

        // 1. Platform
        if (/*overload*/mb_strstr($HTTP_USER_AGENT, 'Win')) {
            $this->set('PMA_USR_OS', 'Win');
        } elseif (/*overload*/mb_strstr($HTTP_USER_AGENT, 'Mac')) {
            $this->set('PMA_USR_OS', 'Mac');
        } elseif (/*overload*/mb_strstr($HTTP_USER_AGENT, 'Linux')) {
            $this->set('PMA_USR_OS', 'Linux');
        } elseif (/*overload*/mb_strstr($HTTP_USER_AGENT, 'Unix')) {
            $this->set('PMA_USR_OS', 'Unix');
        } elseif (/*overload*/mb_strstr($HTTP_USER_AGENT, 'OS/2')) {
            $this->set('PMA_USR_OS', 'OS/2');
        } else {
            $this->set('PMA_USR_OS', 'Other');
        }

        // 2. browser and version
        // (must check everything else before Mozilla)

        $is_mozilla = preg_match(
            '@Mozilla/([0-9].[0-9]{1,2})@',
            $HTTP_USER_AGENT,
            $mozilla_version
        );

        if (preg_match(
            '@Opera(/| )([0-9].[0-9]{1,2})@',
            $HTTP_USER_AGENT,
            $log_version
        )) {
            $this->set('PMA_USR_BROWSER_VER', $log_version[2]);
            $this->set('PMA_USR_BROWSER_AGENT', 'OPERA');
        } elseif (preg_match(
            '@(MS)?IE ([0-9]{1,2}.[0-9]{1,2})@',
            $HTTP_USER_AGENT,
            $log_version
        )) {
            $this->set('PMA_USR_BROWSER_VER', $log_version[2]);
            $this->set('PMA_USR_BROWSER_AGENT', 'IE');
        } elseif (preg_match(
            '@Trident/(7)\.0@',
            $HTTP_USER_AGENT,
            $log_version
        )) {
            $this->set('PMA_USR_BROWSER_VER', intval($log_version[1]) + 4);
            $this->set('PMA_USR_BROWSER_AGENT', 'IE');
        } elseif (preg_match(
            '@OmniWeb/([0-9].[0-9]{1,2})@',
            $HTTP_USER_AGENT,
            $log_version
        )) {
            $this->set('PMA_USR_BROWSER_VER', $log_version[1]);
            $this->set('PMA_USR_BROWSER_AGENT', 'OMNIWEB');
            // Konqueror 2.2.2 says Konqueror/2.2.2
            // Konqueror 3.0.3 says Konqueror/3
        } elseif (preg_match(
            '@(Konqueror/)(.*)(;)@',
            $HTTP_USER_AGENT,
            $log_version
        )) {
            $this->set('PMA_USR_BROWSER_VER', $log_version[2]);
            $this->set('PMA_USR_BROWSER_AGENT', 'KONQUEROR');
            // must check Chrome before Safari
        } elseif ($is_mozilla
            && preg_match('@Chrome/([0-9.]*)@', $HTTP_USER_AGENT, $log_version)
        ) {
            $this->set('PMA_USR_BROWSER_VER', $log_version[1]);
            $this->set('PMA_USR_BROWSER_AGENT', 'CHROME');
            // newer Safari
        } elseif ($is_mozilla
            && preg_match('@Version/(.*) Safari@', $HTTP_USER_AGENT, $log_version)
        ) {
            $this->set(
                'PMA_USR_BROWSER_VER', $log_version[1]
            );
            $this->set('PMA_USR_BROWSER_AGENT', 'SAFARI');
            // older Safari
        } elseif ($is_mozilla
            && preg_match('@Safari/([0-9]*)@', $HTTP_USER_AGENT, $log_version)
        ) {
            $this->set(
                'PMA_USR_BROWSER_VER', $mozilla_version[1] . '.' . $log_version[1]
            );
            $this->set('PMA_USR_BROWSER_AGENT', 'SAFARI');
            // Firefox
        } elseif (! /*overload*/mb_strstr($HTTP_USER_AGENT, 'compatible')
            && preg_match('@Firefox/([\w.]+)@', $HTTP_USER_AGENT, $log_version)
        ) {
            $this->set(
                'PMA_USR_BROWSER_VER', $log_version[1]
            );
            $this->set('PMA_USR_BROWSER_AGENT', 'FIREFOX');
        } elseif (preg_match('@rv:1.9(.*)Gecko@', $HTTP_USER_AGENT)) {
            $this->set('PMA_USR_BROWSER_VER', '1.9');
            $this->set('PMA_USR_BROWSER_AGENT', 'GECKO');
        } elseif ($is_mozilla) {
            $this->set('PMA_USR_BROWSER_VER', $mozilla_version[1]);
            $this->set('PMA_USR_BROWSER_AGENT', 'MOZILLA');
        } else {
            $this->set('PMA_USR_BROWSER_VER', 0);
            $this->set('PMA_USR_BROWSER_AGENT', 'OTHER');
        }
    }

    /**
     * Whether GD2 is present
     *
     * @return void
     */
    function checkGd2()
    {
        if ($this->get('GD2Available') == 'yes') {
            $this->set('PMA_IS_GD2', 1);
            return;
        }

        if ($this->get('GD2Available') == 'no') {
            $this->set('PMA_IS_GD2', 0);
            return;
        }

        if (!@function_exists('imagecreatetruecolor')) {
            $this->set('PMA_IS_GD2', 0);
            return;
        }

        if (@function_exists('gd_info')) {
            $gd_nfo = gd_info();
            if (/*overload*/mb_strstr($gd_nfo["GD Version"], '2.')) {
                $this->set('PMA_IS_GD2', 1);
            } else {
                $this->set('PMA_IS_GD2', 0);
            }
        } else {
            $this->set('PMA_IS_GD2', 0);
        }
    }

    /**
     * Whether the Web server php is running on is IIS
     *
     * @return void
     */
    function checkWebServer()
    {
        // some versions return Microsoft-IIS, some Microsoft/IIS
        // we could use a preg_match() but it's slower
        if (PMA_getenv('SERVER_SOFTWARE')
            && stristr(PMA_getenv('SERVER_SOFTWARE'), 'Microsoft')
            && stristr(PMA_getenv('SERVER_SOFTWARE'), 'IIS')
        ) {
            $this->set('PMA_IS_IIS', 1);
        } else {
            $this->set('PMA_IS_IIS', 0);
        }
    }

    /**
     * Whether the os php is running on is windows or not
     *
     * @return void
     */
    function checkWebServerOs()
    {
        // Default to Unix or Equiv
        $this->set('PMA_IS_WINDOWS', 0);
        // If PHP_OS is defined then continue
        if (defined('PHP_OS')) {
            if (stristr(PHP_OS, 'win') && !stristr(PHP_OS, 'darwin')) {
                // Is it some version of Windows
                $this->set('PMA_IS_WINDOWS', 1);
            } elseif (stristr(PHP_OS, 'OS/2')) {
                // Is it OS/2 (No file permissions like Windows)
                $this->set('PMA_IS_WINDOWS', 1);
            }
        }
    }

    /**
     * detects PHP version
     *
     * @return void
     */
    function checkPhpVersion()
    {
        $match = array();
        if (! preg_match(
            '@([0-9]{1,2}).([0-9]{1,2}).([0-9]{1,2})@',
            phpversion(),
            $match
        )) {
            preg_match(
                '@([0-9]{1,2}).([0-9]{1,2})@',
                phpversion(),
                $match
            );
        }
        if (isset($match) && ! empty($match[1])) {
            if (! isset($match[2])) {
                $match[2] = 0;
            }
            if (! isset($match[3])) {
                $match[3] = 0;
            }
            $this->set(
                'PMA_PHP_INT_VERSION',
                (int) sprintf('%d%02d%02d', $match[1], $match[2], $match[3])
            );
        } else {
            $this->set('PMA_PHP_INT_VERSION', 0);
        }
        $this->set('PMA_PHP_STR_VERSION', phpversion());
    }

    /**
     * detects if Git revision
     *
     * @return boolean
     */
    function isGitRevision()
    {
        // caching
        if (isset($_SESSION['is_git_revision'])) {
            if ($_SESSION['is_git_revision']) {
                $this->set('PMA_VERSION_GIT', 1);
            }
            return $_SESSION['is_git_revision'];
        }
        // find out if there is a .git folder
        $git_folder = '.git';
        if (! @file_exists($git_folder)
            || ! @file_exists($git_folder . '/config')
        ) {
            $_SESSION['is_git_revision'] = false;
            return false;
        }
        $_SESSION['is_git_revision'] = true;
        return true;
    }

    /**
     * detects Git revision, if running inside repo
     *
     * @return void
     */
    function checkGitRevision()
    {
        // find out if there is a .git folder
        $git_folder = '.git';
        if (! $this->isGitRevision()) {
            return;
        }

        if (! $ref_head = @file_get_contents($git_folder . '/HEAD')) {
            return;
        }

        $branch = false;
        // are we on any branch?
        if (/*overload*/mb_strstr($ref_head, '/')) {
            $ref_head = /*overload*/mb_substr(trim($ref_head), 5);
            if (substr($ref_head, 0, 11) === 'refs/heads/') {
                $branch = /*overload*/mb_substr($ref_head, 11);
            } else {
                $branch = basename($ref_head);
            }

            $ref_file = $git_folder . '/' . $ref_head;
            if (@file_exists($ref_file)) {
                $hash = @file_get_contents($ref_file);
                if (! $hash) {
                    return;
                }
                $hash = trim($hash);
            } else {
                // deal with packed refs
                $packed_refs = @file_get_contents($git_folder . '/packed-refs');
                if (! $packed_refs) {
                    return;
                }
                // split file to lines
                $ref_lines = explode("\n", $packed_refs);
                foreach ($ref_lines as $line) {
                    // skip comments
                    if ($line[0] == '#') {
                        continue;
                    }
                    // parse line
                    $parts = explode(' ', $line);
                    // care only about named refs
                    if (count($parts) != 2) {
                        continue;
                    }
                    // have found our ref?
                    if ($parts[1] == $ref_head) {
                        $hash = $parts[0];
                        break;
                    }
                }
                if (! isset($hash)) {
                    // Could not find ref
                    return;
                }
            }
        } else {
            $hash = trim($ref_head);
        }

        $commit = false;
        if (! isset($_SESSION['PMA_VERSION_COMMITDATA_' . $hash])) {
            $git_file_name = $git_folder . '/objects/'
                . substr($hash, 0, 2) . '/' . substr($hash, 2);
            if (file_exists($git_file_name) ) {
                if (! $commit = @file_get_contents($git_file_name)) {
                    return;
                }
                $commit = explode("\0", gzuncompress($commit), 2);
                $commit = explode("\n", $commit[1]);
                $_SESSION['PMA_VERSION_COMMITDATA_' . $hash] = $commit;
            } else {
                $pack_names = array();
                // work with packed data
                $packs_file = $git_folder . '/objects/info/packs';
                if (file_exists($packs_file)
                    && $packs = @file_get_contents($packs_file)
                ) {
                    // File exists. Read it, parse the file to get the names of the
                    // packs. (to look for them in .git/object/pack directory later)
                    foreach (explode("\n", $packs) as $line) {
                        // skip blank lines
                        if (strlen(trim($line)) == 0) {
                            continue;
                        }
                        // skip non pack lines
                        if ($line[0] != 'P') {
                            continue;
                        }
                        // parse names
                        $pack_names[] = substr($line, 2);
                    }
                } else {
                    // '.git/objects/info/packs' file can be missing
                    // (atlease in mysGit)
                    // File missing. May be we can look in the .git/object/pack
                    // directory for all the .pack files and use that list of
                    // files instead
                    $dirIterator = new DirectoryIterator(
                        $git_folder . '/objects/pack'
                    );
                    foreach ($dirIterator as $file_info) {
                        $file_name = $file_info->getFilename();
                        // if this is a .pack file
                        if ($file_info->isFile() && substr($file_name, -5) == '.pack'
                        ) {
                            $pack_names[] = $file_name;
                        }
                    }
                }
                $hash = strtolower($hash);
                foreach ($pack_names as $pack_name) {
                    $index_name = str_replace('.pack', '.idx', $pack_name);

                    // load index
                    $index_data = @file_get_contents(
                        $git_folder . '/objects/pack/' . $index_name
                    );
                    if (! $index_data) {
                        continue;
                    }
                    // check format
                    if (substr($index_data, 0, 4) != "\377tOc") {
                        continue;
                    }
                    // check version
                    $version = unpack('N', substr($index_data, 4, 4));
                    if ($version[1] != 2) {
                        continue;
                    }
                    // parse fanout table
                    $fanout = unpack(
                        "N*",
                        substr($index_data, 8, 256 * 4)
                    );

                    // find where we should search
                    $firstbyte = intval(substr($hash, 0, 2), 16);
                    // array is indexed from 1 and we need to get
                    // previous entry for start
                    if ($firstbyte == 0) {
                        $start = 0;
                    } else {
                        $start = $fanout[$firstbyte];
                    }
                    $end = $fanout[$firstbyte + 1];

                    // stupid linear search for our sha
                    $found = false;
                    $offset = 8 + (256 * 4);
                    for ($position = $start; $position < $end; $position++) {
                        $sha = strtolower(
                            bin2hex(
                                substr($index_data, $offset + ($position * 20), 20)
                            )
                        );
                        if ($sha == $hash) {
                            $found = true;
                            break;
                        }
                    }
                    if (! $found) {
                        continue;
                    }
                    // read pack offset
                    $offset = 8 + (256 * 4) + (24 * $fanout[256]);
                    $pack_offset = unpack(
                        'N',
                        substr($index_data, $offset + ($position * 4), 4)
                    );
                    $pack_offset = $pack_offset[1];

                    // open pack file
                    $pack_file = fopen(
                        $git_folder . '/objects/pack/' . $pack_name, 'rb'
                    );
                    if ($pack_file === false) {
                        continue;
                    }
                    // seek to start
                    fseek($pack_file, $pack_offset);

                    // parse header
                    $header = ord(fread($pack_file, 1));
                    $type = ($header >> 4) & 7;
                    $hasnext = ($header & 128) >> 7;
                    $size = $header & 0xf;
                    $offset = 4;

                    while ($hasnext) {
                        $byte = ord(fread($pack_file, 1));
                        $size |= ($byte & 0x7f) << $offset;
                        $hasnext = ($byte & 128) >> 7;
                        $offset += 7;
                    }

                    // we care only about commit objects
                    if ($type != 1) {
                        continue;
                    }

                    // read data
                    $commit = fread($pack_file, $size);
                    $commit = gzuncompress($commit);
                    $commit = explode("\n", $commit);
                    $_SESSION['PMA_VERSION_COMMITDATA_' . $hash] = $commit;
                    fclose($pack_file);
                }
            }
        } else {
            $commit = $_SESSION['PMA_VERSION_COMMITDATA_' . $hash];
        }

        // check if commit exists in Github
        if ($commit !== false
            && isset($_SESSION['PMA_VERSION_REMOTECOMMIT_' . $hash])
        ) {
            $is_remote_commit = $_SESSION['PMA_VERSION_REMOTECOMMIT_' . $hash];
        } else {
            $link = 'https://api.github.com/repos/phpmyadmin/phpmyadmin/git/commits/'
                . $hash;
            $is_found = $this->checkHTTP($link, ! $commit);
            switch($is_found) {
            case false:
                $is_remote_commit = false;
                $_SESSION['PMA_VERSION_REMOTECOMMIT_' . $hash] = false;
                break;
            case null:
                // no remote link for now, but don't cache this as Github is down
                $is_remote_commit = false;
                break;
            default:
                $is_remote_commit = true;
                $_SESSION['PMA_VERSION_REMOTECOMMIT_' . $hash] = true;
                if ($commit === false) {
                    // if no local commit data, try loading from Github
                    $commit_json = json_decode($is_found);
                }
                break;
            }
        }

        $is_remote_branch = false;
        if ($is_remote_commit && $branch !== false) {
            // check if branch exists in Github
            if (isset($_SESSION['PMA_VERSION_REMOTEBRANCH_' . $hash])) {
                $is_remote_branch = $_SESSION['PMA_VERSION_REMOTEBRANCH_' . $hash];
            } else {
                $link = 'https://api.github.com/repos/phpmyadmin/phpmyadmin'
                    . '/git/trees/' . $branch;
                $is_found = $this->checkHTTP($link);
                switch($is_found) {
                case true:
                    $is_remote_branch = true;
                    $_SESSION['PMA_VERSION_REMOTEBRANCH_' . $hash] = true;
                    break;
                case false:
                    $is_remote_branch = false;
                    $_SESSION['PMA_VERSION_REMOTEBRANCH_' . $hash] = false;
                    break;
                case null:
                    // no remote link for now, but don't cache this as Github is down
                    $is_remote_branch = false;
                    break;
                }
            }
        }

        if ($commit !== false) {
            $author = array('name' => '', 'email' => '', 'date' => '');
            $committer = array('name' => '', 'email' => '', 'date' => '');

            do {
                $dataline = array_shift($commit);
                $datalinearr = explode(' ', $dataline, 2);
                $linetype = $datalinearr[0];
                if (in_array($linetype, array('author', 'committer'))) {
                    $user = $datalinearr[1];
                    preg_match('/([^<]+)<([^>]+)> ([0-9]+)( [^ ]+)?/', $user, $user);
                    $user2 = array(
                        'name' => trim($user[1]),
                        'email' => trim($user[2]),
                        'date' => date('Y-m-d H:i:s', $user[3]));
                    if (isset($user[4])) {
                        $user2['date'] .= $user[4];
                    }
                    $$linetype = $user2;
                }
            } while ($dataline != '');
            $message = trim(implode(' ', $commit));

        } elseif (isset($commit_json)) {
            $author = array(
                'name' => $commit_json->author->name,
                'email' => $commit_json->author->email,
                'date' => $commit_json->author->date);
            $committer = array(
                'name' => $commit_json->committer->name,
                'email' => $commit_json->committer->email,
                'date' => $commit_json->committer->date);
            $message = trim($commit_json->message);
        } else {
            return;
        }

        $this->set('PMA_VERSION_GIT', 1);
        $this->set('PMA_VERSION_GIT_COMMITHASH', $hash);
        $this->set('PMA_VERSION_GIT_BRANCH', $branch);
        $this->set('PMA_VERSION_GIT_MESSAGE', $message);
        $this->set('PMA_VERSION_GIT_AUTHOR', $author);
        $this->set('PMA_VERSION_GIT_COMMITTER', $committer);
        $this->set('PMA_VERSION_GIT_ISREMOTECOMMIT', $is_remote_commit);
        $this->set('PMA_VERSION_GIT_ISREMOTEBRANCH', $is_remote_branch);
    }

    /**
     * Checks if given URL is 200 or 404, optionally returns data
     *
     * @param string  $link     the URL to check
     * @param boolean $get_body whether to retrieve body of document
     *
     * @return string|boolean test result or data
     */
    function checkHTTP($link, $get_body = false)
    {
        if (! function_exists('curl_init')) {
            return null;
        }
        $ch = curl_init($link);
        curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 0);
        curl_setopt($ch, CURLOPT_HEADER, 1);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);
        curl_setopt($ch, CURLOPT_USERAGENT, 'phpMyAdmin/' . PMA_VERSION);
        curl_setopt($ch, CURLOPT_TIMEOUT, 5);
        if (! defined('TESTSUITE')) {
            session_write_close();
        }
        $data = @curl_exec($ch);
        if (! defined('TESTSUITE')) {
            ini_set('session.use_only_cookies', '0');
            ini_set('session.use_cookies', '0');
            ini_set('session.use_trans_sid', '0');
            ini_set('session.cache_limiter', 'nocache');
            session_start();
        }
        if ($data === false) {
            return null;
        }
        $httpOk = 'HTTP/1.1 200 OK';
        $httpNotFound = 'HTTP/1.1 404 Not Found';

        if (substr($data, 0, strlen($httpOk)) === $httpOk) {
            return $get_body
                ? /*overload*/mb_substr(
                    $data,
                    /*overload*/mb_strpos($data, "\r\n\r\n") + 4
                )
                : true;
        }

        $httpNOK = substr(
            $data,
            0,
            strlen($httpNotFound)
        );
        if ($httpNOK === $httpNotFound) {
            return false;
        }
        return null;
    }

    /**
     * loads default values from default source
     *
     * @return boolean     success
     */
    function loadDefaults()
    {
        $cfg = array();
        if (! file_exists($this->default_source)) {
            $this->error_config_default_file = true;
            return false;
        }
        include $this->default_source;

        $this->default_source_mtime = filemtime($this->default_source);

        $this->default_server = $cfg['Servers'][1];
        unset($cfg['Servers']);

        $this->default = $cfg;
        $this->settings = PMA_arrayMergeRecursive($this->settings, $cfg);

        $this->error_config_default_file = false;

        return true;
    }

    /**
     * loads configuration from $source, usually the config file
     * should be called on object creation
     *
     * @param string $source config file
     *
     * @return bool
     */
    function load($source = null)
    {
        $this->loadDefaults();

        if (null !== $source) {
            $this->setSource($source);
        }

        /**
         * We check and set the font size at this point, to make the font size
         * selector work also for users without a config.inc.php
         */
        $this->checkFontsize();

        if (! $this->checkConfigSource()) {
            // even if no config file, set collation_connection
            $this->checkCollationConnection();
            return false;
        }

        $cfg = array();

        /**
         * Parses the configuration file, we throw away any errors or
         * output.
         */
        $old_error_reporting = error_reporting(0);
        ob_start();
        $GLOBALS['pma_config_loading'] = true;
        $eval_result = include $this->getSource();
        $GLOBALS['pma_config_loading'] = false;
        ob_end_clean();
        error_reporting($old_error_reporting);

        if ($eval_result === false) {
            $this->error_config_file = true;
        } else {
            $this->error_config_file = false;
            $this->source_mtime = filemtime($this->getSource());
        }

        /**
         * Backward compatibility code
         */
        if (!empty($cfg['DefaultTabTable'])) {
            $cfg['DefaultTabTable'] = str_replace(
                '_properties',
                '',
                str_replace(
                    'tbl_properties.php',
                    'tbl_sql.php',
                    $cfg['DefaultTabTable']
                )
            );
        }
        if (!empty($cfg['DefaultTabDatabase'])) {
            $cfg['DefaultTabDatabase'] = str_replace(
                '_details',
                '',
                str_replace(
                    'db_details.php',
                    'db_sql.php',
                    $cfg['DefaultTabDatabase']
                )
            );
        }

        $this->settings = PMA_arrayMergeRecursive($this->settings, $cfg);
        $this->checkPmaAbsoluteUri();

        // Handling of the collation must be done after merging of $cfg
        // (from config.inc.php) so that $cfg['DefaultConnectionCollation']
        // can have an effect.
        $this->checkCollationConnection();

        return true;
    }

    /**
     * Loads user preferences and merges them with current config
     * must be called after control connection has been established
     *
     * @return void
     */
    function loadUserPreferences()
    {
        // index.php should load these settings, so that phpmyadmin.css.php
        // will have everything available in session cache
        $server = isset($GLOBALS['server'])
            ? $GLOBALS['server']
            : (!empty($GLOBALS['cfg']['ServerDefault'])
                ? $GLOBALS['cfg']['ServerDefault']
                : 0);
        $cache_key = 'server_' . $server;
        if ($server > 0 && !defined('PMA_MINIMUM_COMMON')) {
            $config_mtime = max($this->default_source_mtime, $this->source_mtime);
            // cache user preferences, use database only when needed
            if (! isset($_SESSION['cache'][$cache_key]['userprefs'])
                || $_SESSION['cache'][$cache_key]['config_mtime'] < $config_mtime
            ) {
                // load required libraries
                include_once './libraries/user_preferences.lib.php';
                $prefs = PMA_loadUserprefs();
                $_SESSION['cache'][$cache_key]['userprefs']
                    = PMA_applyUserprefs($prefs['config_data']);
                $_SESSION['cache'][$cache_key]['userprefs_mtime'] = $prefs['mtime'];
                $_SESSION['cache'][$cache_key]['userprefs_type'] = $prefs['type'];
                $_SESSION['cache'][$cache_key]['config_mtime'] = $config_mtime;
            }
        } elseif ($server == 0
            || ! isset($_SESSION['cache'][$cache_key]['userprefs'])
        ) {
            $this->set('user_preferences', false);
            return;
        }
        $config_data = $_SESSION['cache'][$cache_key]['userprefs'];
        // type is 'db' or 'session'
        $this->set(
            'user_preferences',
            $_SESSION['cache'][$cache_key]['userprefs_type']
        );
        $this->set(
            'user_preferences_mtime',
            $_SESSION['cache'][$cache_key]['userprefs_mtime']
        );

        // backup some settings
        $org_fontsize = '';
        if (isset($this->settings['fontsize'])) {
            $org_fontsize = $this->settings['fontsize'];
        }
        // load config array
        $this->settings = PMA_arrayMergeRecursive($this->settings, $config_data);
        $GLOBALS['cfg'] = PMA_arrayMergeRecursive($GLOBALS['cfg'], $config_data);
        if (defined('PMA_MINIMUM_COMMON')) {
            return;
        }

        // settings below start really working on next page load, but
        // changes are made only in index.php so everything is set when
        // in frames

        // save theme
        $tmanager = $_SESSION['PMA_Theme_Manager'];
        if ($tmanager->getThemeCookie() || isset($_REQUEST['set_theme'])) {
            if ((! isset($config_data['ThemeDefault'])
                && $tmanager->theme->getId() != 'original')
                || isset($config_data['ThemeDefault'])
                && $config_data['ThemeDefault'] != $tmanager->theme->getId()
            ) {
                // new theme was set in common.inc.php
                $this->setUserValue(
                    null,
                    'ThemeDefault',
                    $tmanager->theme->getId(),
                    'original'
                );
            }
        } else {
            // no cookie - read default from settings
            if ($this->settings['ThemeDefault'] != $tmanager->theme->getId()
                && $tmanager->checkTheme($this->settings['ThemeDefault'])
            ) {
                $tmanager->setActiveTheme($this->settings['ThemeDefault']);
                $tmanager->setThemeCookie();
            }
        }

        // save font size
        if ((! isset($config_data['fontsize'])
            && $org_fontsize != '82%')
            || isset($config_data['fontsize'])
            && $org_fontsize != $config_data['fontsize']
        ) {
            $this->setUserValue(null, 'fontsize', $org_fontsize, '82%');
        }

        // save language
        if (isset($_COOKIE['pma_lang']) || isset($_POST['lang'])) {
            if ((! isset($config_data['lang'])
                && $GLOBALS['lang'] != 'en')
                || isset($config_data['lang'])
                && $GLOBALS['lang'] != $config_data['lang']
            ) {
                $this->setUserValue(null, 'lang', $GLOBALS['lang'], 'en');
            }
        } else {
            // read language from settings
            if (isset($config_data['lang']) && PMA_langSet($config_data['lang'])) {
                $this->setCookie('pma_lang', $GLOBALS['lang']);
            }
        }

        // save connection collation
        if (!PMA_DRIZZLE) {
            // just to shorten the lines
            $collation = 'collation_connection';
            if (isset($_COOKIE['pma_collation_connection'])
                || isset($_POST[$collation])
            ) {
                if ((! isset($config_data[$collation])
                    && $GLOBALS[$collation] != 'utf8_general_ci')
                    || isset($config_data[$collation])
                    && $GLOBALS[$collation] != $config_data[$collation]
                ) {
                    $this->setUserValue(
                        null,
                        $collation,
                        $GLOBALS[$collation],
                        'utf8_general_ci'
                    );
                }
            } else {
                // read collation from settings
                if (isset($config_data['collation_connection'])) {
                    $GLOBALS['collation_connection']
                        = $config_data['collation_connection'];
                    $this->setCookie(
                        'pma_collation_connection',
                        $GLOBALS['collation_connection']
                    );
                }
            }
        }
    }

    /**
     * Sets config value which is stored in user preferences (if available)
     * or in a cookie.
     *
     * If user preferences are not yet initialized, option is applied to
     * global config and added to a update queue, which is processed
     * by {@link loadUserPreferences()}
     *
     * @param string $cookie_name   can be null
     * @param string $cfg_path      configuration path
     * @param mixed  $new_cfg_value new value
     * @param mixed  $default_value default value
     *
     * @return void
     */
    function setUserValue($cookie_name, $cfg_path, $new_cfg_value,
        $default_value = null
    ) {
        // use permanent user preferences if possible
        $prefs_type = $this->get('user_preferences');
        if ($prefs_type) {
            include_once './libraries/user_preferences.lib.php';
            if ($default_value === null) {
                $default_value = PMA_arrayRead($cfg_path, $this->default);
            }
            PMA_persistOption($cfg_path, $new_cfg_value, $default_value);
        }
        if ($prefs_type != 'db' && $cookie_name) {
            // fall back to cookies
            if ($default_value === null) {
                $default_value = PMA_arrayRead($cfg_path, $this->settings);
            }
            $this->setCookie($cookie_name, $new_cfg_value, $default_value);
        }
        PMA_arrayWrite($cfg_path, $GLOBALS['cfg'], $new_cfg_value);
        PMA_arrayWrite($cfg_path, $this->settings, $new_cfg_value);
    }

    /**
     * Reads value stored by {@link setUserValue()}
     *
     * @param string $cookie_name cookie name
     * @param mixed  $cfg_value   config value
     *
     * @return mixed
     */
    function getUserValue($cookie_name, $cfg_value)
    {
        $cookie_exists = isset($_COOKIE) && !empty($_COOKIE[$cookie_name]);
        $prefs_type = $this->get('user_preferences');
        if ($prefs_type == 'db') {
            // permanent user preferences value exists, remove cookie
            if ($cookie_exists) {
                $this->removeCookie($cookie_name);
            }
        } else if ($cookie_exists) {
            return $_COOKIE[$cookie_name];
        }
        // return value from $cfg array
        return $cfg_value;
    }

    /**
     * set source
     *
     * @param string $source source
     *
     * @return void
     */
    function setSource($source)
    {
        $this->source = trim($source);
    }

    /**
     * check config source
     *
     * @return boolean whether source is valid or not
     */
    function checkConfigSource()
    {
        if (! $this->getSource()) {
            // no configuration file set at all
            return false;
        }

        if (! file_exists($this->getSource())) {
            $this->source_mtime = 0;
            return false;
        }

        if (! is_readable($this->getSource())) {
            // manually check if file is readable
            // might be bug #3059806 Supporting running from CIFS/Samba shares

            $contents = false;
            $handle = @fopen($this->getSource(), 'r');
            if ($handle !== false) {
                $contents = @fread($handle, 1); // reading 1 byte is enough to test
                @fclose($handle);
            }
            if ($contents === false) {
                $this->source_mtime = 0;
                PMA_fatalError(
                    sprintf(
                        function_exists('__')
                        ? __('Existing configuration file (%s) is not readable.')
                        : 'Existing configuration file (%s) is not readable.',
                        $this->getSource()
                    )
                );
                return false;
            }
        }

        return true;
    }

    /**
     * verifies the permissions on config file (if asked by configuration)
     * (must be called after config.inc.php has been merged)
     *
     * @return void
     */
    function checkPermissions()
    {
        // Check for permissions (on platforms that support it):
        if ($this->get('CheckConfigurationPermissions')) {
            $perms = @fileperms($this->getSource());
            if (!($perms === false) && ($perms & 2)) {
                // This check is normally done after loading configuration
                $this->checkWebServerOs();
                if ($this->get('PMA_IS_WINDOWS') == 0) {
                    $this->source_mtime = 0;
                    PMA_fatalError(
                        __(
                            'Wrong permissions on configuration file, '
                            . 'should not be world writable!'
                        )
                    );
                }
            }
        }
    }

    /**
     * returns specific config setting
     *
     * @param string $setting config setting
     *
     * @return mixed value
     */
    function get($setting)
    {
        if (isset($this->settings[$setting])) {
            return $this->settings[$setting];
        }
        return null;
    }

    /**
     * sets configuration variable
     *
     * @param string $setting configuration option
     * @param mixed  $value   new value for configuration option
     *
     * @return void
     */
    function set($setting, $value)
    {
        if (! isset($this->settings[$setting])
            || $this->settings[$setting] !== $value
        ) {
            $this->settings[$setting] = $value;
            $this->set_mtime = time();
        }
    }

    /**
     * returns source for current config
     *
     * @return string  config source
     */
    function getSource()
    {
        return $this->source;
    }

    /**
     * returns a unique value to force a CSS reload if either the config
     * or the theme changes
     * must also check the pma_fontsize cookie in case there is no
     * config file
     *
     * @return int Summary of unix timestamps and fontsize,
     * to be unique on theme parameters change
     */
    function getThemeUniqueValue()
    {
        if (null !== $this->get('fontsize')) {
            $fontsize = intval($this->get('fontsize'));
        } elseif (isset($_COOKIE['pma_fontsize'])) {
            $fontsize = intval($_COOKIE['pma_fontsize']);
        } else {
            $fontsize = 0;
        }
        return (
            $fontsize +
            $this->source_mtime +
            $this->default_source_mtime +
            $this->get('user_preferences_mtime') +
            $_SESSION['PMA_Theme']->mtime_info +
            $_SESSION['PMA_Theme']->filesize_info);
    }

    /**
     * $cfg['PmaAbsoluteUri'] is a required directive else cookies won't be
     * set properly and, depending on browsers, inserting or updating a
     * record might fail
     *
     * @return void
     */
    function checkPmaAbsoluteUri()
    {
        // Setup a default value to let the people and lazy sysadmins work anyway,
        // they'll get an error if the autodetect code doesn't work
        $pma_absolute_uri = $this->get('PmaAbsoluteUri');
        $is_https = $this->detectHttps();

        if (/*overload*/mb_strlen($pma_absolute_uri) < 5) {
            $url = array();

            // If we don't have scheme, we didn't have full URL so we need to
            // dig deeper
            if (empty($url['scheme'])) {
                // Scheme
                if ($is_https) {
                    $url['scheme'] = 'https';
                } else {
                    $url['scheme'] = 'http';
                }

                // Host and port
                if (PMA_getenv('HTTP_HOST')) {
                    // Prepend the scheme before using parse_url() since this
                    // is not part of the RFC2616 Host request-header
                    $parsed_url = parse_url(
                        $url['scheme'] . '://' . PMA_getenv('HTTP_HOST')
                    );
                    if (!empty($parsed_url['host'])) {
                        $url = $parsed_url;
                    } else {
                        $url['host'] = PMA_getenv('HTTP_HOST');
                    }
                } elseif (PMA_getenv('SERVER_NAME')) {
                    $url['host'] = PMA_getenv('SERVER_NAME');
                } else {
                    $this->error_pma_uri = true;
                    return;
                }

                // If we didn't set port yet...
                if (empty($url['port']) && PMA_getenv('SERVER_PORT')) {
                    $url['port'] = PMA_getenv('SERVER_PORT');
                }

                // And finally the path could be already set from REQUEST_URI
                if (empty($url['path'])) {
                    // we got a case with nginx + php-fpm where PHP_SELF
                    // was not set, so PMA_PHP_SELF was not set as well
                    if (isset($GLOBALS['PMA_PHP_SELF'])) {
                        $path = parse_url($GLOBALS['PMA_PHP_SELF']);
                    } else {
                        $path = parse_url(PMA_getenv('REQUEST_URI'));
                    }
                    $url['path'] = $path['path'];
                }
            }

            // Make url from parts we have
            $pma_absolute_uri = $url['scheme'] . '://';
            // Was there user information?
            if (!empty($url['user'])) {
                $pma_absolute_uri .= $url['user'];
                if (!empty($url['pass'])) {
                    $pma_absolute_uri .= ':' . $url['pass'];
                }
                $pma_absolute_uri .= '@';
            }
            // Add hostname
            $pma_absolute_uri .= $url['host'];
            // Add port, if it not the default one
            if (! empty($url['port'])
                && (($url['scheme'] == 'http' && $url['port'] != 80)
                || ($url['scheme'] == 'https' && $url['port'] != 443))
            ) {
                $pma_absolute_uri .= ':' . $url['port'];
            }
            // And finally path, without script name, the 'a' is there not to
            // strip our directory, when path is only /pmadir/ without filename.
            // Backslashes returned by Windows have to be changed.
            // Only replace backslashes by forward slashes if on Windows,
            // as the backslash could be valid on a non-Windows system.
            $this->checkWebServerOs();
            if ($this->get('PMA_IS_WINDOWS') == 1) {
                $path = str_replace("\\", "/", dirname($url['path'] . 'a'));
            } else {
                $path = dirname($url['path'] . 'a');
            }

            // To work correctly within javascript
            if (defined('PMA_PATH_TO_BASEDIR') && PMA_PATH_TO_BASEDIR == '../') {
                if ($this->get('PMA_IS_WINDOWS') == 1) {
                    $path = str_replace("\\", "/", dirname($path));
                } else {
                    $path = dirname($path);
                }
            }

            // PHP's dirname function would have returned a dot
            // when $path contains no slash
            if ($path == '.') {
                $path = '';
            }
            // in vhost situations, there could be already an ending slash
            if (/*overload*/mb_substr($path, -1) != '/') {
                $path .= '/';
            }
            $pma_absolute_uri .= $path;

            // This is to handle the case of a reverse proxy
            if ($this->get('ForceSSL')) {
                $this->set('PmaAbsoluteUri', $pma_absolute_uri);
                $pma_absolute_uri = $this->getSSLUri();
                $this->isHttps();
            }

            // We used to display a warning if PmaAbsoluteUri wasn't set, but now
            // the autodetect code works well enough that we don't display the
            // warning at all. The user can still set PmaAbsoluteUri manually.

        } else {
            // The URI is specified, however users do often specify this
            // wrongly, so we try to fix this.

            // Adds a trailing slash et the end of the phpMyAdmin uri if it
            // does not exist.
            if (/*overload*/mb_substr($pma_absolute_uri, -1) != '/') {
                $pma_absolute_uri .= '/';
            }

            // If URI doesn't start with http:// or https://, we will add
            // this.
            if (/*overload*/mb_substr($pma_absolute_uri, 0, 7) != 'http://'
                && /*overload*/mb_substr($pma_absolute_uri, 0, 8) != 'https://'
            ) {
                $pma_absolute_uri
                    = ($is_https ? 'https' : 'http')
                    . ':'
                    . (
                        /*overload*/mb_substr($pma_absolute_uri, 0, 2) == '//'
                        ? ''
                        : '//'
                    )
                    . $pma_absolute_uri;
            }
        }
        $this->set('PmaAbsoluteUri', $pma_absolute_uri);
    }

    /**
     * Converts currently used PmaAbsoluteUri to SSL based variant.
     *
     * @return String witch adjusted URI
     */
    function getSSLUri()
    {
        // grab current URL
        $url = $this->get('PmaAbsoluteUri');
        // Parse current URL
        $parsed = parse_url($url);
        // In case parsing has failed do stupid string replacement
        if ($parsed === false) {
            // Replace http protocol
            return preg_replace('@^http:@', 'https:', $url);
        }

        // Reconstruct URL using parsed parts
        return 'https://' . $parsed['host'] . ':443' . $parsed['path'];
    }

    /**
     * Sets collation_connection based on user preference. First is checked
     * value from request, then cookies with fallback to default.
     *
     * After setting it here, cookie is set in common.inc.php to persist
     * the selection.
     *
     * @todo check validity of collation string
     *
     * @return void
     */
    function checkCollationConnection()
    {
        if (! empty($_REQUEST['collation_connection'])) {
            $collation = strip_tags($_REQUEST['collation_connection']);
        } elseif (! empty($_COOKIE['pma_collation_connection'])) {
            $collation = strip_tags($_COOKIE['pma_collation_connection']);
        } else {
            $collation = $this->get('DefaultConnectionCollation');
        }
        $this->set('collation_connection', $collation);
    }

    /**
     * checks for font size configuration, and sets font size as requested by user
     *
     * @return void
     */
    function checkFontsize()
    {
        $new_fontsize = '';

        if (isset($_GET['set_fontsize'])) {
            $new_fontsize = $_GET['set_fontsize'];
        } elseif (isset($_POST['set_fontsize'])) {
            $new_fontsize = $_POST['set_fontsize'];
        } elseif (isset($_COOKIE['pma_fontsize'])) {
            $new_fontsize = $_COOKIE['pma_fontsize'];
        }

        if (preg_match('/^[0-9.]+(px|em|pt|\%)$/', $new_fontsize)) {
            $this->set('fontsize', $new_fontsize);
        } elseif (! $this->get('fontsize')) {
            // 80% would correspond to the default browser font size
            // of 16, but use 82% to help read the monoface font
            $this->set('fontsize', '82%');
        }

        $this->setCookie('pma_fontsize', $this->get('fontsize'), '82%');
    }

    /**
     * checks if upload is enabled
     *
     * @return void
     */
    function checkUpload()
    {
        if (!ini_get('file_uploads')) {
            $this->set('enable_upload', false);
            return;
        }

        $this->set('enable_upload', true);
        // if set "php_admin_value file_uploads Off" in httpd.conf
        // ini_get() also returns the string "Off" in this case:
        if ('off' == strtolower(ini_get('file_uploads'))) {
            $this->set('enable_upload', false);
        }
    }

    /**
     * Maximum upload size as limited by PHP
     * Used with permission from Moodle (http://moodle.org) by Martin Dougiamas
     *
     * this section generates $max_upload_size in bytes
     *
     * @return void
     */
    function checkUploadSize()
    {
        if (! $filesize = ini_get('upload_max_filesize')) {
            $filesize = "5M";
        }

        if ($postsize = ini_get('post_max_size')) {
            $this->set(
                'max_upload_size',
                min(PMA_getRealSize($filesize), PMA_getRealSize($postsize))
            );
        } else {
            $this->set('max_upload_size', PMA_getRealSize($filesize));
        }
    }

    /**
     * Checks if protocol is https
     *
     * This function checks if the https protocol is used in the PmaAbsoluteUri
     * configuration setting, as opposed to detectHttps() which checks if the
     * https protocol is used on the active connection.
     *
     * @return bool
     */
    public function isHttps()
    {

        if (null !== $this->get('is_https')) {
            return $this->get('is_https');
        }

        $url = parse_url($this->get('PmaAbsoluteUri'));

        $is_https = (isset($url['scheme']) && $url['scheme'] == 'https');

        $this->set('is_https', $is_https);

        return $is_https;
    }

    /**
     * Detects whether https appears to be used.
     *
     * This function checks if the https protocol is used in the current connection
     * with the webserver, based on environment variables.
     * Please note that this just detects what we see, so
     * it completely ignores things like reverse proxies.
     *
     * @return bool
     */
    function detectHttps()
    {
        $url = array();

        // At first we try to parse REQUEST_URI, it might contain full URL,
        if (PMA_getenv('REQUEST_URI')) {
            // produces E_WARNING if it cannot get parsed, e.g. '/foobar:/'
            $url = @parse_url(PMA_getenv('REQUEST_URI'));
            if ($url === false) {
                $url = array();
            }
        }

        // If we don't have scheme, we didn't have full URL so we need to
        // dig deeper
        if (empty($url['scheme'])) {
            // Scheme
            if (PMA_getenv('HTTP_SCHEME')) {
                $url['scheme'] = PMA_getenv('HTTP_SCHEME');
            } elseif (PMA_getenv('HTTPS')
                && strtolower(PMA_getenv('HTTPS')) == 'on'
            ) {
                $url['scheme'] = 'https';
                // A10 Networks load balancer:
            } elseif (PMA_getenv('HTTP_HTTPS_FROM_LB')
                && strtolower(PMA_getenv('HTTP_HTTPS_FROM_LB')) == 'on'
            ) {
                $url['scheme'] = 'https';
            } elseif (PMA_getenv('HTTP_X_FORWARDED_PROTO')) {
                $url['scheme'] = /*overload*/mb_strtolower(
                    PMA_getenv('HTTP_X_FORWARDED_PROTO')
                );
            } elseif (PMA_getenv('HTTP_FRONT_END_HTTPS')
                && strtolower(PMA_getenv('HTTP_FRONT_END_HTTPS')) == 'on'
            ) {
                $url['scheme'] = 'https';
            } else {
                $url['scheme'] = 'http';
            }
        }

        if (isset($url['scheme']) && $url['scheme'] == 'https') {
            $is_https = true;
        } else {
            $is_https = false;
        }

        return $is_https;
    }

    /**
     * detect correct cookie path
     *
     * @return void
     */
    function checkCookiePath()
    {
        $this->set('cookie_path', $this->getCookiePath());
    }

    /**
     * Get cookie path
     *
     * @return string
     */
    public function getCookiePath()
    {
        static $cookie_path = null;

        if (null !== $cookie_path && !defined('TESTSUITE')) {
            return $cookie_path;
        }

        $parsed_url = parse_url($this->get('PmaAbsoluteUri'));

        $cookie_path   = $parsed_url['path'];

        return $cookie_path;
    }

    /**
     * enables backward compatibility
     *
     * @return void
     */
    function enableBc()
    {
        $GLOBALS['cfg']             = $this->settings;
        $GLOBALS['default_server']  = $this->default_server;
        unset($this->default_server);
        $GLOBALS['collation_connection'] = $this->get('collation_connection');
        $GLOBALS['is_upload']       = $this->get('enable_upload');
        $GLOBALS['max_upload_size'] = $this->get('max_upload_size');
        $GLOBALS['cookie_path']     = $this->get('cookie_path');
        $GLOBALS['is_https']        = $this->get('is_https');

        $defines = array(
            'PMA_VERSION',
            'PMA_THEME_VERSION',
            'PMA_THEME_GENERATION',
            'PMA_PHP_STR_VERSION',
            'PMA_PHP_INT_VERSION',
            'PMA_IS_WINDOWS',
            'PMA_IS_IIS',
            'PMA_IS_GD2',
            'PMA_USR_OS',
            'PMA_USR_BROWSER_VER',
            'PMA_USR_BROWSER_AGENT'
            );

        foreach ($defines as $define) {
            if (! defined($define)) {
                define($define, $this->get($define));
            }
        }
    }

    /**
     * returns options for font size selection
     *
     * @param string $current_size current selected font size with unit
     *
     * @return array selectable font sizes
     *
     * @static
     */
    static protected function getFontsizeOptions($current_size = '82%')
    {
        $unit = preg_replace('/[0-9.]*/', '', $current_size);
        $value = preg_replace('/[^0-9.]*/', '', $current_size);

        $factors = array();
        $options = array();
        $options["$value"] = $value . $unit;

        if ($unit === '%') {
            $factors[] = 1;
            $factors[] = 5;
            $factors[] = 10;
        } elseif ($unit === 'em') {
            $factors[] = 0.05;
            $factors[] = 0.2;
            $factors[] = 1;
        } elseif ($unit === 'pt') {
            $factors[] = 0.5;
            $factors[] = 2;
        } elseif ($unit === 'px') {
            $factors[] = 1;
            $factors[] = 5;
            $factors[] = 10;
        } else {
            //unknown font size unit
            $factors[] = 0.05;
            $factors[] = 0.2;
            $factors[] = 1;
            $factors[] = 5;
            $factors[] = 10;
        }

        foreach ($factors as $key => $factor) {
            $option_inc = $value + $factor;
            $option_dec = $value - $factor;
            while (count($options) < 21) {
                $options["$option_inc"] = $option_inc . $unit;
                if ($option_dec > $factors[0]) {
                    $options["$option_dec"] = $option_dec . $unit;
                }
                $option_inc += $factor;
                $option_dec -= $factor;
                if (isset($factors[$key + 1])
                    && $option_inc >= $value + $factors[$key + 1]
                ) {
                    break;
                }
            }
        }
        ksort($options);
        return $options;
    }

    /**
     * returns html selectbox for font sizes
     *
     * @static
     *
     * @return string html selectbox
     */
    static protected function getFontsizeSelection()
    {
        $current_size = $GLOBALS['PMA_Config']->get('fontsize');
        // for the case when there is no config file (this is supported)
        if (empty($current_size)) {
            if (isset($_COOKIE['pma_fontsize'])) {
                $current_size = htmlspecialchars($_COOKIE['pma_fontsize']);
            } else {
                $current_size = '82%';
            }
        }
        $options = PMA_Config::getFontsizeOptions($current_size);

        $return = '<label for="select_fontsize">' . __('Font size')
            . ':</label>' . "\n"
            . '<select name="set_fontsize" id="select_fontsize"'
            . ' class="autosubmit">' . "\n";
        foreach ($options as $option) {
            $return .= '<option value="' . $option . '"';
            if ($option == $current_size) {
                $return .= ' selected="selected"';
            }
            $return .= '>' . $option . '</option>' . "\n";
        }
        $return .= '</select>';

        return $return;
    }

    /**
     * return complete font size selection form
     *
     * @static
     *
     * @return string html selectbox
     */
    static public function getFontsizeForm()
    {
        return '<form name="form_fontsize_selection" id="form_fontsize_selection"'
            . ' method="get" action="index.php" class="disableAjax">' . "\n"
            . PMA_URL_getHiddenInputs() . "\n"
            . PMA_Config::getFontsizeSelection() . "\n"
            . '</form>';
    }

    /**
     * removes cookie
     *
     * @param string $cookie name of cookie to remove
     *
     * @return boolean result of setcookie()
     */
    function removeCookie($cookie)
    {
        if (defined('TESTSUITE')) {
            if (isset($_COOKIE[$cookie])) {
                unset($_COOKIE[$cookie]);
            }
            return true;
        }
        return setcookie(
            $cookie,
            '',
            time() - 3600,
            $this->getCookiePath(),
            '',
            $this->isHttps()
        );
    }

    /**
     * sets cookie if value is different from current cookie value,
     * or removes if value is equal to default
     *
     * @param string $cookie   name of cookie to remove
     * @param mixed  $value    new cookie value
     * @param string $default  default value
     * @param int    $validity validity of cookie in seconds (default is one month)
     * @param bool   $httponly whether cookie is only for HTTP (and not for scripts)
     *
     * @return boolean result of setcookie()
     */
    function setCookie($cookie, $value, $default = null, $validity = null,
        $httponly = true
    ) {
        if (/*overload*/mb_strlen($value) && null !== $default && $value === $default
        ) {
            // default value is used
            if (isset($_COOKIE[$cookie])) {
                // remove cookie
                return $this->removeCookie($cookie);
            }
            return false;
        }

        if (!/*overload*/mb_strlen($value) && isset($_COOKIE[$cookie])) {
            // remove cookie, value is empty
            return $this->removeCookie($cookie);
        }

        if (! isset($_COOKIE[$cookie]) || $_COOKIE[$cookie] !== $value) {
            // set cookie with new value
            /* Calculate cookie validity */
            if ($validity === null) {
                $validity = time() + 2592000;
            } elseif ($validity == 0) {
                $validity = 0;
            } else {
                $validity = time() + $validity;
            }
            if (defined('TESTSUITE')) {
                $_COOKIE[$cookie] = $value;
                return true;
            }
            return setcookie(
                $cookie,
                $value,
                $validity,
                $this->getCookiePath(),
                '',
                $this->isHttps(),
                $httponly
            );
        }

        // cookie has already $value as value
        return true;
    }
}


/**
 * Error handler to catch fatal errors when loading configuration
 * file
 *
 * @return void
 */
function PMA_Config_fatalErrorHandler()
{
    if (isset($GLOBALS['pma_config_loading']) && $GLOBALS['pma_config_loading']) {
        $error = error_get_last();
        if ($error !== null) {
            PMA_fatalError(
                sprintf(
                    'Failed to load phpMyAdmin configuration (%s:%s): %s',
                    PMA_Error::relPath($error['file']),
                    $error['line'],
                    $error['message']
                )
            );
        }
    }
}

if (!defined('TESTSUITE')) {
    register_shutdown_function('PMA_Config_fatalErrorHandler');
}

?>
Creat By MiNi SheLL
Email: devilkiller@gmail.com