config.class.php

WEBGAME源码,有架设说明,只是非常简单

                    . $pma_absolute_uri;
            }
        }

        $this->set('PmaAbsoluteUri', $pma_absolute_uri);
    }

    /**
     * check selected collation_connection
     * @todo check validity of $_REQUEST['collation_connection']
     */
    function checkCollationConnection()
    {
        // (could be improved by executing it after the MySQL connection only if
        //  PMA_MYSQL_INT_VERSION >= 40100)
        if (! empty($_REQUEST['collation_connection'])) {
            $this->set('collation_connection',
                strip_tags($_REQUEST['collation_connection']));
        }
    }

    /**
     * checks for font size configuration, and sets font size as requested by user
     *
     * @uses    $_GET
     * @uses    $_POST
     * @uses    $_COOKIE
     * @uses    preg_match()
     * @uses    function_exists()
     * @uses    PMA_Config::set()
     * @uses    PMA_Config::get()
     * @uses    PMA_setCookie()
     */
    function checkFontsize()
    {
        $new_fontsize = '';

        if (isset($_GET['fontsize'])) {
            $new_fontsize = $_GET['fontsize'];
        } elseif (isset($_POST['fontsize'])) {
            $new_fontsize = $_POST['fontsize'];
        } elseif (isset($_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')) {
            $this->set('fontsize', '100%');
        }

        if (function_exists('PMA_setCookie')) {
            PMA_setCookie('pma_fontsize', $this->get('fontsize'), '100%');
        }
    }

    /**
     * checks if upload is enabled
     *
     */
    function checkUpload()
    {
        $this->set('enable_upload', true);
        if (strtolower(@ini_get('file_uploads')) == 'off'
          || @ini_get('file_uploads') == 0) {
            $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
     */
    function checkUploadSize()
    {
        if (! $filesize = ini_get('upload_max_filesize')) {
            $filesize = "5M";
        }

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

    /**
     * check for https
     */
    function checkIsHttps()
    {
        $this->set('is_https', PMA_Config::isHttps());
    }

    /**
     * @static
     */
    function isHttps()
    {
        $is_https = false;

        $url = array();

        // At first we try to parse REQUEST_URI, it might contain full URL,
        if (PMA_getenv('REQUEST_URI')) {
            $url = @parse_url(PMA_getenv('REQUEST_URI')); // produces E_WARNING if it cannot get parsed, e.g. '/foobar:/'
            if($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');
            } else {
                $url['scheme'] =
                    PMA_getenv('HTTPS') && strtolower(PMA_getenv('HTTPS')) != 'off'
                        ? 'https'
                        : 'http';
            }
        }

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

        return $is_https;
    }

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

    /**
     * @static
     */
    function getCookiePath()
    {
        static $cookie_path = null;

        if (null !== $cookie_path) {
            return $cookie_path;
        }

        $url = '';

        if (PMA_getenv('REQUEST_URI')) {
            $url = PMA_getenv('REQUEST_URI');
        }

        // If we don't have path
        if (empty($url)) {
            if (PMA_getenv('PATH_INFO')) {
                $url = PMA_getenv('PATH_INFO');
            } elseif (PMA_getenv('PHP_SELF')) {
                // PHP_SELF in CGI often points to cgi executable, so use it
                // as last choice
                $url = PMA_getenv('PHP_SELF');
            } elseif (PMA_getenv('SCRIPT_NAME')) {
                $url = PMA_getenv('PHP_SELF');
            }
        }

        $parsed_url = @parse_url($_SERVER['REQUEST_URI']); // produces E_WARNING if it cannot get parsed, e.g. '/foobar:/'
        if ($parsed_url === false) {
            $parsed_url = array('path' => $url);
        }

        $cookie_path   = substr($parsed_url['path'], 0, strrpos($parsed_url['path'], '/'))  . '/';

        return $cookie_path;
    }

    /**
     * enables backward compatibility
     */
    function enableBc()
    {
        $GLOBALS['cfg']             =& $this->settings;
        $GLOBALS['default_server']  =& $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));
            }
        }
    }

    /**
     * @todo finish
     */
    function save() {}

    /**
     * returns options for font size selection
     *
     * @uses    preg_replace()
     * @uses    ksort()
     * @static
     * @param   string  $current_size   current selected font size with unit
     * @return  array   selectable font sizes
     */
    function getFontsizeOptions($current_size = '100%')
    {
        $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
     *
     * @uses    $_SESSION['PMA_Config']
     * @uses    PMA_Config::get()
     * @uses    PMA_Config::getFontsizeOptions()
     * @uses    $GLOBALS['strFontSize']
     * @static
     * @param   string  $current_size   currently slected font size with unit
     * @return  string  html selectbox
     */
    function getFontsizeSelection()
    {
        $current_size = $_SESSION['PMA_Config']->get('fontsize');
        $options = PMA_Config::getFontsizeOptions($current_size);

        $return = '<label for="select_fontsize">' . $GLOBALS['strFontSize'] . ':</label>' . "\n";
        $return .= '<select name="fontsize" id="select_fontsize" onchange="this.form.submit();">' . "\n";
        foreach ($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
     *
     * @uses    PMA_generate_common_hidden_inputs()
     * @uses    PMA_Config::getFontsizeSelection()
     * @uses    $GLOBALS['strGo']
     * @static
     * @param   string  $current_size   currently slected font size with unit
     * @return  string  html selectbox
     */
    function getFontsizeForm()
    {
        return '<form name="form_fontsize_selection" id="form_fontsize_selection"'
            . ' method="post" action="index.php" target="_parent">' . "\n"
            . PMA_generate_common_hidden_inputs() . "\n"
            . PMA_Config::getFontsizeSelection() . "\n"
            . '<noscript>' . "\n"
            . '<input type="submit" value="' . $GLOBALS['strGo'] . '" />' . "\n"
            . '</noscript>' . "\n"
            . '</form>';
    }
}
?>