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<?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';
/**
* 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
*/
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->checkIsHttps();
}
/**
* sets system and application settings
*
* @return void
*/
function checkSystem()
{
$this->set('PMA_VERSION', '4.0.0-dev');
/**
* @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')) {
$HTTP_USER_AGENT = PMA_getenv('HTTP_USER_AGENT');
} elseif (! isset($HTTP_USER_AGENT)) {
$HTTP_USER_AGENT = '';
}
// 1. Platform
if (strstr($HTTP_USER_AGENT, 'Win')) {
$this->set('PMA_USR_OS', 'Win');
} elseif (strstr($HTTP_USER_AGENT, 'Mac')) {
$this->set('PMA_USR_OS', 'Mac');
} elseif (strstr($HTTP_USER_AGENT, 'Linux')) {
$this->set('PMA_USR_OS', 'Linux');
} elseif (strstr($HTTP_USER_AGENT, 'Unix')) {
$this->set('PMA_USR_OS', 'Unix');
} elseif (strstr($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)
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(
'@MSIE ([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', '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');
} elseif (preg_match('@Mozilla/([0-9].[0-9]{1,2})@', $HTTP_USER_AGENT, $log_version)
&& preg_match('@Safari/([0-9]*)@', $HTTP_USER_AGENT, $log_version2)
) {
$this->set('PMA_USR_BROWSER_VER', $log_version[1] . '.' . $log_version2[1]);
$this->set('PMA_USR_BROWSER_AGENT', 'SAFARI');
} 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 (preg_match('@Mozilla/([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', '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') {
$this->set('PMA_IS_GD2', 1);
} elseif ($this->get('GD2Available') == 'no') {
$this->set('PMA_IS_GD2', 0);
} else {
if (!@function_exists('imagecreatetruecolor')) {
$this->set('PMA_IS_GD2', 0);
} else {
if (@function_exists('gd_info')) {
$gd_nfo = gd_info();
if (strstr($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')) {
// 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
$git_folder = '.git';
if (! @file_exists($git_folder)
|| ! @file_exists($git_folder . '/config')
) {
return;
}
if (! $ref_head = @file_get_contents($git_folder . '/HEAD')) {
return;
}
$branch = false;
// are we on any branch?
if (strstr($ref_head, '/')) {
$ref_head = substr(trim($ref_head), 5);
$branch = basename($ref_head);
if (! $hash = @file_get_contents($git_folder . '/' . $ref_head)) {
return;
}
$hash = trim($hash);
} 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 {
$commit = $_SESSION['PMA_VERSION_COMMITDATA_' . $hash];
}
// check if commit exists in Github
$is_remote_commit = false;
if ($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', $is_remote_branch);
}
/**
* Checks if given URL is 200 or 404, optionally returns data
*/
function checkHTTP($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_NOBODY, !$get_body);
curl_setopt($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_TIMEOUT, 5);
$data = @curl_exec($ch);
if ($data === false) {
return null;
}
$ok = 'HTTP/1.1 200 OK';
$notfound = 'HTTP/1.1 404 Not Found';
if (substr($data, 0, strlen($ok)) === $ok) {
return $get_body ? substr($data, strpos($data, "\r\n\r\n") + 4) : true;
} elseif (substr($data, 0, strlen($notfound)) === $notfound) {
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, usally 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);
}
if (! $this->checkConfigSource()) {
return false;
}
$cfg = array();
/**
* Parses the configuration file, the eval is used here to avoid
* problems with trailing whitespace, what is often a problem.
*/
$old_error_reporting = error_reporting(0);
$eval_result = eval('?' . '>' . trim(file_get_contents($this->getSource())));
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();
$this->checkFontsize();
$this->checkPermissions();
// Handling of the collation must be done after merging of $cfg
// (from config.inc.php) so that $cfg['DefaultConnectionCollation']
// can have an effect. Note that the presence of collation
// information in a cookie has priority over what is defined
// in the default or user's config files.
/**
* @todo check validity of $_COOKIE['pma_collation_connection']
*/
if (! empty($_COOKIE['pma_collation_connection'])) {
$this->set(
'collation_connection',
strip_tags($_COOKIE['pma_collation_connection'])
);
} else {
$this->set(
'collation_connection',
$this->get('DefaultConnectionCollation')
);
}
// Now, a collation information could come from REQUEST
// (an example of this: the collation selector in main.php)
// so the following handles the setting of collation_connection
// and later, in common.inc.php, the cookie will be set
// according to this.
$this->checkCollationConnection();
return true;
}
/**
* Loads user preferences and merges them with current config
* must be called after control connection has been estabilished
*
* @return boolean
*/
function loadUserPreferences()
{
// index.php should load these settings, so that phpmyadmin.css.php
// will have everything avaiable 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_load_userprefs();
$_SESSION['cache'][$cache_key]['userprefs']
= PMA_apply_userprefs($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 = $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', $GLOBALS['lang']);
}
}
// save connection collation
if (isset($_COOKIE['pma_collation_connection'])
|| isset($_POST['collation_connection'])
) {
if ((! isset($config_data['collation_connection'])
&& $GLOBALS['collation_connection'] != 'utf8_general_ci')
|| isset($config_data['collation_connection'])
&& $GLOBALS['collation_connection'] != $config_data['collation_connection']
) {
$this->setUserValue(
null,
'collation_connection',
$GLOBALS['collation_connection'],
'utf8_general_ci'
);
}
} else {
// read collation from settings
if (isset($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, $this->default);
}
PMA_persist_option($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;
/* Gettext is possibly still not loaded */
if (function_exists('__')) {
$msg = __('Wrong permissions on configuration file, should not be world writable!');
} else {
$msg = 'Wrong permissions on configuration file, should not be world writable!';
}
PMA_fatalError($msg);
}
}
}
}
/**
* 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 string $value new value for configuration option
*
* @return void
*/
function set($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 bool
*/
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 = $this->detectHttps();
if (strlen($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 {
$this->error_pma_uri = true;
return false;
}
// If we didn't set port yet...
if (empty($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'])) {
$path = parse_url($GLOBALS['PMA_PHP_SELF']);
$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 transformations overview:
if (defined('PMA_PATH_TO_BASEDIR') && PMA_PATH_TO_BASEDIR == '../../') {
if ($this->get('PMA_IS_WINDOWS') == 1) {
$path = str_replace("\\", "/", dirname(dirname($path)));
} else {
$path = dirname(dirname($path));
}
}
// PHP's dirname function would have returned a dot
// when $path contains no slash
if ($path == '.') {
$path = '';
}
// in vhost situations, there could be already an ending slash
if (substr($path, -1) != '/') {
$path .= '/';
}
$pma_absolute_uri .= $path;
// We used to display a warning if PmaAbsoluteUri wasn't set, but now
// the autodetect code works well enough that we don't display the
// warning at all. The user can still set PmaAbsoluteUri manually.
// See
// http://sf.net/tracker/?func=detail&aid=1257134&group_id=23067&atid=377411
} else {
// The URI is specified, however users do often specify this
// wrongly, so we try to fix this.
// Adds a trailing slash et the end of the phpMyAdmin uri if it
// does not exist.
if (substr($pma_absolute_uri, -1) != '/') {
$pma_absolute_uri .= '/';
}
// If URI doesn't start with http:// or https://, we will add
// this.
if (substr($pma_absolute_uri, 0, 7) != 'http://'
&& substr($pma_absolute_uri, 0, 8) != 'https://'
) {
$pma_absolute_uri
= ($is_https ? 'https' : 'http')
. ':' . (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:', $url);
}
// Reconstruct URL using parsed parts
if ($this->get('SSLPort')) {
$port_number = $this->get('SSLPort');
} else {
$port_number = 443;
}
return 'https://' . $parsed['host'] . ':' . $port_number . $parsed['path'];
}
/**
* check selected collation_connection
*
* @todo check validity of $_REQUEST['collation_connection']
*
* @return void
*/
function checkCollationConnection()
{
if (! empty($_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
*
* @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', 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);
}
} else {
$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));
}
}
/**
* check for https
*
* @return void
*/
function checkIsHttps()
{
$this->set('is_https', $this->isHttps());
}
/**
* 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()
{
static $is_https = null;
if (null !== $is_https) {
return $is_https;
}
$url = parse_url($this->get('PmaAbsoluteUri'));
if (isset($url['scheme']) && $url['scheme'] == 'https') {
$is_https = true;
} else {
$is_https = false;
}
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()
{
$is_https = false;
$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';
} elseif (PMA_getenv('HTTP_X_FORWARDED_PROTO')) {
$url['scheme'] = 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 = $_COOKIE['pma_fontsize'];
} else {
$current_size = '82%';
}
}
$options = PMA_Config::_getFontsizeOptions($current_size);
$return = '<label for="select_fontsize">' . __('Font size') . ':</label>' . "\n";
$return .= '<select name="set_fontsize" id="select_fontsize" class="autosubmit">' . "\n";
foreach ($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="post" action="index.php" target="_parent">' . "\n"
. PMA_generate_common_hidden_inputs() . "\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 cokkie 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,
$httponly = true
) {
if (strlen($value) && null !== $default && $value === $default) {
// default value is used
if (isset($_COOKIE[$cookie])) {
// remove cookie
return $this->removeCookie($cookie);
}
return false;
}
if (! 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;
}
}
?>
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