Adjust copyrights years
<?php
/**
* SeekQuarry/Yioop --
* Open Source Pure PHP Search Engine, Crawler, and Indexer
*
* Copyright (C) 2009, 2010, 2011 Chris Pollett chris@pollett.org
*
* LICENSE:
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* END LICENSE
*
* Main web interface entry point for Yioop!
* search site. Used to both get and display
* search results. Also used for inter-machine
* communication during crawling
*
* @author Chris Pollett chris@pollett.org
* @package seek_quarry
* @license http://www.gnu.org/licenses/ GPL3
* @link http://www.seekquarry.com/
* @copyright 2009, 2010, 2011
* @filesource
*/
/** Calculate base directory of script
* @ignore
*/
define("BASE_DIR", substr($_SERVER['SCRIPT_FILENAME'], 0,-strlen("index.php")));
/**
* Load the configuration file
*/
require_once(BASE_DIR.'configs/config.php');
ini_set("memory_limit","500M");
header("X-FRAME-OPTIONS: DENY"); //prevent click-jacking
session_name(SESSION_NAME);
session_start();
/**
* Sets up DB to be used
*/
require_once(BASE_DIR."/models/datasources/".DBMS."_manager.php");
/**
* Load FileCache class in case used
*/
require_once(BASE_DIR."/lib/file_cache.php");
if(USE_MEMCACHE) {
$CACHE = new Memcache();
foreach($MEMCACHES as $mc) {
$CACHE->addServer($mc['host'], $mc['port']);
}
unset($mc);
define("USE_CACHE", true);
} else if (USE_FILECACHE) {
$CACHE = new FileCache(WORK_DIRECTORY."/cache/queries");
define("USE_CACHE", true);
} else {
define("USE_CACHE", false);
}
mb_internal_encoding("UTF-8");
mb_regex_encoding("UTF-8");
if ( false === function_exists('lcfirst') ) {
/**
* Lower cases the first letter in a string
*
* This function is only defined if the PHP version is before 5.3
* @param string $str string to be lower cased
* @return string the lower cased string
*/
function lcfirst( $str )
{ return (string)(strtolower(substr($str,0,1)).substr($str,1));}
}
$available_controllers = array("search", "fetch", "cache",
"settings", "admin", "archive");
//the request variable c is used to determine the controller
if(!isset($_REQUEST['c'])) {
$controller_name = "search";
} else {
$controller_name = $_REQUEST['c'];
}
if(!checkAllowedController($controller_name))
{
$controller_name = "search";
}
// if no profile exists we force the page to be the configuration page
if(!PROFILE ) {
$controller_name = "admin";
}
//the request variable l is used to determine the locale
if(isset($_SESSION['l']) ||isset($_REQUEST['l'])) {
$l = (isset($_REQUEST['l'])) ? $_REQUEST['l'] : $_SESSION['l'];
if(strlen($l) < 10) {
$l= addslashes($l);
if(is_dir(LOCALE_DIR."/$l")) {
$locale_tag = $l;
}
}
}
if(!isset($locale_tag)) {
$locale_tag = DEFAULT_LOCALE;
}
if(upgradeCheck()) {
upgrade();
}
/**
* Used to contain information about the current language and regional settings
*/
require_once BASE_DIR."/models/locale_model.php";
$locale = NULL;
setLocaleObject($locale_tag);
/**
* Loads controller responsible for calculating
* the data needed to render the scene
*
*/
require_once(BASE_DIR."/controllers/".$controller_name."_controller.php");
$controller_class = ucfirst($controller_name)."Controller";
$controller = new $controller_class($INDEXING_PLUGINS);
$controller->processRequest();
/**
* Verifies that the supplied controller string is a controller for the
* SeekQuarry app
*
* @param string $controller_name name of controller
* (this usually come from the query string)
* @return bool whether it is a valid controller
*/
function checkAllowedController($controller_name)
{
global $available_controllers;
return in_array($controller_name, $available_controllers);
}
/**
* shorthand for echo
*
* @param string $text string to send to the current output
*/
function e($text)
{
echo $text;
}
/**
* Translate the supplied arguments into the current locale.
* This function takes a variable number of arguments. The first
* being an identifier to translate. Additional arguments
* are used to interpolate values in for %s's in the translation.
*
* @param string string_identifier identifier to be translated
* @param mixed additional_args used for interpolation in translated string
* @return string translated string
*/
function tl()
{
global $locale;
$args = func_get_args();
$translation = $locale->translate($args);
if($translation == "") {
$translation = $args[0];
}
return $translation;
}
/**
* Sets the language to be used for locale settings
*
* @param string $locale_tag the tag of the language to use to determine
* locale settings
*/
function setLocaleObject($locale_tag)
{
global $locale;
$locale = new LocaleModel();
$locale->initialize($locale_tag);
}
/**
* Gets the language tag (for instance, en_US for American English) of the
* locale that is currently being used.
*
* @return string the tag of the language currently being used for locale
* settings
*/
function getLocaleTag()
{
global $locale;
return $locale->getLocaleTag();
}
/**
* Returns the current language directions.
*
* @return string ltr or rtl depending on if the language is left-to-right
* or right-to-left
*/
function getLocaleDirection()
{
global $locale;
return $locale->getLocaleDirection();
}
/**
* Returns the query statistics info for the current llocalt.
*
* @return array consisting of queries and elapses times for locale computations
*/
function getLocaleQueryStatistics()
{
global $locale;
$query_info = array();
$query_info['QUERY_LOG'] = $locale->db->query_log;
$query_info['TOTAL_ELAPSED_TIME'] = $locale->db->total_time;
return $query_info;
}
/**
* Returns the current locales method of writing blocks (things like divs or
* paragraphs).A language like English puts blocks one after another from the
* top of the page to the bottom. Other languages like classical Chinese list
* them from right to left.
*
* @return string tb lr rl depending on the current locales block progression
*/
function getBlockProgression()
{
global $locale;
return $locale->getBlockProgression();
}
/**
* Returns the writing mode of the current locale. This is a combination of the
* locale direction and the block progression. For instance, for English the
* writing mode is lr-tb (left-to-right top-to-bottom).
*
* @return string the locales writing mode
*/
function getWritingMode()
{
global $locale;
return $locale->getWritingMode();
}
/**
* Checks to see if the version of Yioop! in the profile is older than the
* currently running Yioop!
*/
function upgradeCheck()
{
global $locale_tag;
$config_name = LOCALE_DIR."/$locale_tag/configure.ini";
$fallback_config_name =
FALLBACK_LOCALE_DIR."/$locale_tag/configure.ini";
if(filemtime($fallback_config_name) > filemtime($config_name)) {
return true;
}
return false;
}
/**
* If version of Yioop! in the profile is older than the
* currently running Yioop! then this function is called to at least
* try to copy the new strings into the old profile.
*/
function upgrade()
{
global $locale;
$locale = new LocaleModel();
$locale->extractMergeLocales();
}
?>