functions.php | searchcode

/trunk/includes/functions.php

http://yuan-pad.googlecode.com/
PHP | 566 lines | 317 code | 34 blank | 215 comment | 49 complexity | 5d72d009a9d8799715df8883becf8d68 MD5 | raw file

<?php

/**

 * @author rainyjune <dreamneverfall@gmail.com>

 * @version $Id: functions.php 8 2011-11-01 04:32:33Z rainyjune@live.cn $

 */



/**

 * Validate IP Address

 *

 * @param string $ip

 * @return boolean 

 */

function valid_ip($ip)

{

	return filter_var($ip,FILTER_VALIDATE_IP);

}



/**

 * Finds whether the user is admin or not , redirect browser to the login page if not admin.

 *

 */

function is_admin()

{

	if (!isset($_SESSION['admin']))

	{

		header("Location:index.php?controller=user&action=login");exit;

	}

}



/**

 * Is GD Installed?

 * CI 1.7.2

 * @access	public

 * @return	bool

 */

function gd_loaded()

{

	if ( ! extension_loaded('gd'))

	{

		if ( ! @dl('gd.so'))

			return FALSE;

	}

	return TRUE;

}



/**

 * Get GD version

 *

 * @access	public

 * @return	mixed

 */

function gd_version()

{

	$gd_version=FALSE;

	if (defined('GD_VERSION'))

		$gd_version=GD_VERSION;

	elseif(function_exists('gd_info'))

	{

		$gd_version = @gd_info();

		$gd_version = $gd_version['GD Version'];

	}

	return $gd_version;

}



/**

 * Get IP of visitor

 * 

 * @return string 

 */

function getIP()

{

	$ip = $_SERVER['REMOTE_ADDR'];

	if (!empty($_SERVER['HTTP_CLIENT_IP']))

		$ip = $_SERVER['HTTP_CLIENT_IP'];

	elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR']))

		$ip = $_SERVER['HTTP_X_FORWARDED_FOR'];

	$ip=$ip?$ip:'127.0.0.1';

	return $ip;

}



/**

 * Finds whether a value is a valid email

 *

 * @param string $value

 * @return bool

 */

function is_email($value)

{

	return preg_match('/^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$/i', $value);

}



/**

 * Attach one event to an action

 *

 * @global array $actionEvent

 * @param string $action <p>The name of action</p>

 * @param mixed $evt <p>The name of event</p>

 */

function attachEvent($action,$evt)

{

	global $actionEvent;

	if (!@in_array($evt, $actionEvent[$action]))

		$actionEvent[$action][]=$evt;

}

/**

 * ?????action???

 * @global array $actionEvent

 * @param string $action

 * @param array $param 

 */

function performEvent($action,$param=array())

{

	global $actionEvent;

	$functions=@$actionEvent[$action];

	if($functions){

		foreach($functions as $function){

			call_user_func_array($function, $param);

		}

	}

}



/**

 * Find the appropriate configuration directory.

 *

 * Try finding a matching configuration directory by stripping the website's

 * hostname from left to right and pathname from right to left. The first

 * configuration file found will be used; the remaining will ignored. If no

 * configuration file is found, return a default value '$confdir/default'.

 *

 * Example for a fictitious site installed at

 * http://www.drupal.org:8080/mysite/test/ the 'settings.php' is searched in

 * the following directories:

 *

 *  1. $confdir/8080.www.drupal.org.mysite.test

 *  2. $confdir/www.drupal.org.mysite.test

 *  3. $confdir/drupal.org.mysite.test

 *  4. $confdir/org.mysite.test

 *

 *  5. $confdir/8080.www.drupal.org.mysite

 *  6. $confdir/www.drupal.org.mysite

 *  7. $confdir/drupal.org.mysite

 *  8. $confdir/org.mysite

 *

 *  9. $confdir/8080.www.drupal.org

 * 10. $confdir/www.drupal.org

 * 11. $confdir/drupal.org

 * 12. $confdir/org

 *

 * 13. $confdir/default

 *

 * @param $require_settings

 *   Only configuration directories with an existing settings.php file

 *   will be recognized. Defaults to TRUE. During initial installation,

 *   this is set to FALSE so that Drupal can detect a matching directory,

 *   then create a new settings.php file in it.

 * @param reset

 *   Force a full search for matching directories even if one had been

 *   found previously.

 * @return

 *   The path of the matching directory.

 */

function conf_path($require_settings = TRUE, $reset = FALSE) 

{

	static $conf = '';//????



	if ($conf && !$reset) {//?????????? $reset ???

		return $conf;//???????

	}



	$confdir = 'sites';//????

	$uri = explode('/', $_SERVER['SCRIPT_NAME'] ? $_SERVER['SCRIPT_NAME'] : $_SERVER['SCRIPT_FILENAME']);//???????

	$server = explode('.', implode('.', array_reverse(explode(':', rtrim($_SERVER['HTTP_HOST'], '.')))));//?????????

	for ($i = count($uri) - 1; $i > 0; $i--) {//??

		for ($j = count($server); $j > 0; $j--) {

			$dir = implode('.', array_slice($server, -$j)) . implode('.', array_slice($uri, 0, $i));

			if (file_exists("$confdir/$dir/config.php") || (!$require_settings && file_exists("$confdir/$dir"))) {//?????????????????????????????

				$conf = "$confdir/$dir";

				return $conf;

			}

		}

	}

	$conf = "$confdir/default";

	return $conf;

}



/**

 * Finds whether the database type of guest book is flatfile (Php Textfile DB API)

 *

 * @global string $db_url

 * @return bool

 */

function is_flatfile()

{

	global $db_url;

	if(substr($db_url, 0, 8)=='flatfile')

		return true;

	return false;

}



/**

 * Delete backuped data , only triggered by admin logout

 *

 * @global string $db_url 

 */

function delete_backup_files()

{

	global $db_url;

	is_admin();

	$url = parse_url($db_url);

	$url['path'] = urldecode($url['path']);

	$dbname=substr($url['path'], 1);

	$dir=APPROOT.'/data/'.$dbname;

	$d=dir($dir);

	while(false!==($entry=$d->read()))

	{

		if (strlen($entry)==19)

		{

			$d_file=$dir.'/'.$entry;

			unlink($d_file);

		}

	}

	$d->close();

}



/**

 * Finds whether an IP address is bloked by guest book

 *

 * @global string $db_url

 * @param string $ip

 * @return bool

 */

function is_baned($ip)

{

	global $db_url;

	$all_baned_ips=array();

	$db=YDB::factory($db_url);

	$result=$db->queryAll(sprintf(parse_tbprefix("SELECT * FROM <badip> WHERE ip='%s'"),$db->escape_string($ip)));

	if($result)

		return true;

	return false;

}

/**

 * 

 *

 * @global string $db_prefix

 * @param string $str

 * @return string

 */

function parse_tbprefix($str)

{

	global $db_prefix;

	return strtr($str,array('<'=>$db_prefix,'>'=>''));

}



function get_all_data($parse_smileys=true,$filter_words=false,$processUsername=false,$processTime=false,$apply_filter=true){

	global $db_url;

	$db=YDB::factory($db_url);

	$data=array();

	$data=$db->queryAll(parse_tbprefix("SELECT p.pid AS id, p.ip AS ip , p.uid AS uid ,p.uname AS user,p.content AS post_content,p.post_time AS time,r.content AS reply_content,r.r_time AS reply_time ,u.username AS b_username FROM <post> AS p LEFT JOIN <reply> AS r ON p.pid=r.pid LEFT JOIN <user> AS u ON p.uid=u.uid ORDER BY p.post_time DESC"));

	foreach ($data as &$_data) {

		if($apply_filter && ZFramework::app()->filter_type==ConfigController::FILTER_TRIPTAGS){

			if(strstr(ZFramework::app()->allowed_tags, 'code')){//???? code ???????

				$_data['post_content'] = preg_replace_callback('|<code>(.*)</code>|sU', create_function(

							// single quotes are essential here,

							// or alternative escape all $ as \$

							'$matches',

							'return "<pre class=\'prettyprint\'>".str_replace(">","&gt;",str_replace("<","&lt;",$matches[1]))."</pre>";'

							),$_data['post_content']);

				$_data['reply_content'] = preg_replace_callback('|<code>(.*)</code>|sU', create_function(

							// single quotes are essential here,

							// or alternative escape all $ as \$

							'$matches',

							'return "<pre class=\'prettyprint\'>".str_replace(">","&gt;",str_replace("<","&lt;",$matches[1]))."</pre>";'

							),$_data['reply_content']);

				if(!strstr(ZFramework::app()->allowed_tags, 'pre')){//???? code ???? pre ??? pre

					ZFramework::app()->allowed_tags .= "<pre>";

				}

			}

			$_data['post_content']=strip_tags ($_data['post_content'], ZFramework::app()->allowed_tags);

			$_data['reply_content']=strip_tags ($_data['reply_content'], ZFramework::app()->allowed_tags);

		}  else{

			$_data['post_content']=  htmlentities($_data['post_content'],ENT_COMPAT,'UTF-8');

			$_data['reply_content']=htmlentities($_data['reply_content'],ENT_COMPAT,'UTF-8');

		}

		if($parse_smileys){

			$_data['post_content']=parse_smileys ($_data['post_content'], SMILEYDIR,  getSmileys());

			$_data['reply_content']=parse_smileys ($_data['reply_content'], SMILEYDIR,  getSmileys());

		}

		if($filter_words)

			$_data['post_content']=filter_words($_data['post_content']);

		if($processUsername)

			$_data['user']=($_data['user']==ZFramework::app()->admin)?"<font color='red'>{$_data['user']}</font>":$_data['user'];

		if($processTime){

			$_data['time']=date('m-d H:i',$_data['time']+ZFramework::app()->timezone*60*60);

			$_data['reply_time']=date('m-d H:i',$_data['reply_time']+ZFramework::app()->timezone*60*60);

		}



	}

	return $data;

}



/**

 * ????????????

 * @param $str

 * @param $image_url

 * @param $smileys

 */

function parse_smileys($str = '', $image_url = '', $smileys = NULL)

{

	if ($image_url == '')

		return $str;

	if (!is_array($smileys))

		return $str;

	// Add a trailing slash to the file path if needed

	$image_url = preg_replace("/(.+?)\/*$/", "\\1/",  $image_url);

	foreach ($smileys as $key => $val){

		$str = str_replace($key, "<img src=\"".$image_url.$smileys[$key][0]."\" width=\"".$smileys[$key][1]."\" height=\"".$smileys[$key][2]."\" title=\"".$smileys[$key][3]."\" alt=\"".$smileys[$key][3]."\" style=\"border:0;\" />", $str);

	}

	return $str;

}

/**

 * ??????

 * @param array $input

 */

function filter_words($input)

{

	$filter_array=explode(',',  ZFramework::app()->filter_words);

	$input=str_ireplace($filter_array,'***',$input);

	return $input;

}

/**

 * ????

 */

function show_smileys_table()

{

	$smiley=  require APPROOT.'/includes/showSmiley.php';

	return $smiley;

}

/**

 * ????????

 * @param array $filter_words

 */

function fix_filter_string($filter_words)

{

	$new_string=trim($filter_words,',');

	$new_string=str_replace(array("\t","\r","\n",'  ',' '),'',$new_string);

	return $new_string;

}



/**

 * Gets supported RDBMS type

 *

 * @return array

 */

function get_supported_rdbms()

{

	$supported_rdbms=array();

	$rdbms_functions=array('mysql'=>'mysql_connect','mysqli'=>'mysqli_connect','sqlite'=>'sqlite_open');

	$rdbms_names=array('mysql'=>'MySQL','mysqli'=>'MySQL Improved','sqlite'=>'SQLite');

	foreach ($rdbms_functions as $k => $v) {

		if(function_exists($v)){

			$supported_rdbms[$rdbms_names[$k]]=$k;

		}

	}

	return $supported_rdbms;

}

/**

 * ???????

 *

 * @return bool

 */

function is_installed()

{

	global $db_url;

	if($db_url=='dummydb://username:password@localhost/databasename')

		return false;

	return true;

}



/**

 * ?????

 *

 */

function maple_quotes($var,$charset='UTF-8')

{

	return htmlspecialchars(trim($var),ENT_QUOTES,  $charset);

}



/**

 * ??????????

 * @param $name ?????

 * @return mixed ???????NULL

 */	

function getConfigVar($name)

{

	global $db_url;

	$db=YDB::factory($db_url);

	$result=$db->queryAll(sprintf(parse_tbprefix("SELECT * FROM <sysvar> WHERE varname='%s'"),  $db->escape_string($name)));

	$result=@$result[0]['varvalue'];

	if($result)

		return $result;

	else

		return null;

}



/**

 * ??????

 * @return array

 */

function getSmileys()

{

	return include  dirname(__FILE__).'/smiley.php';

}





/**

 * ?????????

 */

function get_all_themes()

{

	$themes=array();

	$d=dir(THEMEDIR);

	while(false!==($entry=$d->read())){

		if(substr($entry,0,1)!='.')

			$themes[$entry]=$entry;

	}

	$d->close();

	return array_filter($themes,'_removeIndex');

}



/**

 * ??????????? languages/ ?????????

 *

 * @return array

 */

function get_all_langs()

{

	$langs=array();

	$d=dir(APPROOT.'/languages/');

	while(false!==($entry=$d->read())){

		if(substr($entry,0,1)!='.')

			$langs[substr($entry,0,-4)]=substr($entry,0,-4);

	}

	$d->close();

	return array_filter($langs,'_removeIndex');

}



function _removeIndex($var){

	return (!($var == 'index' || $var == 'index.php'));

}





/**

 * ????????????????

 *

 * @return array

 */

function get_all_timezone()

{

	$timezone=  include APPROOT.'/languages/'.getConfigVar('lang').'.php';

	return $timezone['TZ_ZONES'];

}    





/**

 * ????

 */

function show_message($msg,$redirect=false,$redirect_url='index.php',$time_delay=3)

{

	include 'themes/'.getConfigVar('theme').'/templates/'."show_message.php"; exit;

}





/**

 * ?????????????

 *

 * @param mixed $userSpecifiedLanguage

 * @return array

 */

function getLangArray($userSpecifiedLanguage=null)

{

	if($userSpecifiedLanguage)

	{

		if(file_exists(APPROOT.'/languages/'.$userSpecifiedLanguage.'.php'))

		{

			return include APPROOT.'/languages/'.$userSpecifiedLanguage.'.php';

		}

	}

	return include APPROOT.'/languages/'.getConfigVar('lang').'.php';

}

/**

 * ??????

 * 

 * @param boolean $loadPlugin ??????

 * @return array

 */

function get_alll_plugins($loadPlugin=FALSE)

{

	$plugins=array();

	$d=dir(PLUGINDIR);

	while(false!==($entry=$d->read())){

		if(substr($entry,0,1)!='.' && is_dir(PLUGINDIR.DIRECTORY_SEPARATOR.$entry)){

			$plugins[$entry]=$entry;

			if($loadPlugin){

				require_once PLUGINDIR.$entry.DIRECTORY_SEPARATOR.$entry.'.php';

			}

		}

	}

	$d->close();

	return array_filter($plugins,'_removeIndex');

}



/**

 * ??????

 *

 * @param mixed $message

 * @param array $params

 * @param mixed $userSpecifiedLanguage

 * @return string

 */

function t($message,$params=array(),$userSpecifiedLanguage=null)

{

	$messages=getLangArray($userSpecifiedLanguage);

	if(isset ($messages[$message]) && $messages[$message]!=='')

		$message=$messages[$message];

	return $params!==array()?strtr($message, $params):$message;

}



/**

 * ?????????

 *

 */

function is_closedMode()

{

	$disabledAction=array('PostController/actionCreate','SiteController/actionIndex','UserController/actionCreate');

	if(getConfigVar('site_close')==1 && !isset ($_SESSION['admin']) && in_array((isset($_GET['controller'])?$_GET['controller']:'SiteController').'/'.(isset($_GET['action'])?$_GET['action']:'actionIndex'), $disabledAction))

		show_message(getConfigVar('close_reason'));

}



/**

 * Un-quotes a string or an array

 *

 * @param mixed $value

 * @return mixed

 */

function stripslashes_deep($value)

{

	return is_array($value)?array_map('stripslashes_deep',$value):stripslashes($value);

}



/**

 * ?????????????.

 * @return void

 */

function maple_unset_globals()

{

    if (ini_get('register_globals') && (strtolower(ini_get('register_globals'))!='off'))

    {

        $allowed = array('_ENV' => 1, '_GET' => 1, '_POST' => 1, '_COOKIE' => 1,'_SESSION'=>1,'_FILES' => 1, '_SERVER' => 1, '_REQUEST' => 1, 'GLOBALS' => 1);

        foreach ($GLOBALS as $key => $value)

        {

            if (!isset($allowed[$key]))

                unset($GLOBALS[$key]);

        }

    }

}