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<?php
/**
* Class that takes care of configuration
*
* This file is part of Zoph.
*
* Zoph 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 2 of the License, or
* (at your option) any later version.
*
* Zoph 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 Zoph; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* @author Jeroen Roos
* @package Zoph
*/
require_once("db/db.inc.php");
use db\db;
/**
* This class takes care of loading and processing settings
*
* @author Jeroen Roos
* @package Zoph
*/
class settings {
public static $php_loc;
public static $instance;
/**
* Load ini file, as defined in the INI_FILE constant
* Check if these settings are still made in config.inc.php
* and figure out which of the settings should be used.
*/
public static function loadINI($instance="") {
if (!defined("INI_FILE")) {
define("INI_FILE", "/etc/zoph.ini");
}
if (file_exists(INI_FILE)) {
$ini=parse_ini_file(INI_FILE, true);
if ($ini === false) {
throw new zophININotReadableException ("Could not read " . INI_FILE . ". Check permissions.");
}
if (!empty($instance)) {
if (!isset($ini[$instance])) {
throw new zophINIInstanceNotFoundException("Instance " . $instance .
" not found in " . INI_FILE);
}
} else {
// No instance given, autodetect
$instance=static::detectInstance($ini);
}
return $ini[$instance];
} else {
throw new zophININotFoundException (INI_FILE . " not found.");
}
}
/**
* Detect which Zoph instance is used from php path
* @param array ini file as parsed by php function parse_ini_file()
*/
public static function detectInstance(array $ini) {
$php_loc=dirname($_SERVER['SCRIPT_FILENAME']);
if (substr($php_loc, -8) == "/service") {
$php_loc = substr($php_loc, 0, -8);
} else if (substr($php_loc, -3) == "/js") {
$php_loc = substr($php_loc, 0, -3);
}
foreach ($ini as $instance=>$i) {
if (!isset($i["php_location"])) {
log::msg("php_location setting missing from " . $instance . " in " .
INI_FILE, log::FATAL, log::GENERAL);
} else if ($php_loc==$i["php_location"]) {
static::$instance=$instance;
return $instance;
}
}
// No corresponding settings found.
throw new zophINIInstanceNotFoundException("No php_location setting in " . INI_FILE . " found that matches " . $php_loc);
}
/**
* Parse values from ini file.
* @param array section from ini file
* @todo get rid of constants.
*/
public static function parseINI($i) {
if (!isset($i["php_location"])) {
$php_loc=dirname($_SERVER['SCRIPT_FILENAME']);
throw new zophINIInstanceNotFoundException("No php_location setting in " . INI_FILE . " found that matches " . $php_loc);
} else if (!defined("TEST")) {
static::$php_loc=$i["php_location"];
} else {
settings::$php_loc=getcwd() . DIRECTORY_SEPARATOR . "php";
}
$required = array("db_host", "db_name", "db_user", "db_pass", "db_prefix");
foreach ($required as $setting) {
if (!isset($i[$setting])) {
throw new zophINIMissingSettingException($setting . " setting missing from " . INI_FILE);
}
}
db::setLoginDetails(
$i["db_host"],
$i["db_name"],
$i["db_user"],
$i["db_pass"],
$i["db_prefix"]
);
return true;
}
}
if (!defined("CLI")) {
if (defined("TEST")) {
/* unittest code cannot use autodetection of PHP location
because the code is executed from PHPUnit context */
$i=settings::loadINI(INSTANCE);
set_include_path(get_include_path() . PATH_SEPARATOR . getcwd() . DIRECTORY_SEPARATOR . "php");
} else {
$i=settings::loadINI();
}
settings::parseINI($i);
}
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