1: <?php
  2: /**
  3:  * This file contains various helper functions to read specific values needed for setup checks.
  4:  *
  5:  * @package    Setup
  6:  * @subpackage Helper_PHP
  7:  * @version    SVN Revision $Rev:$
  8:  *
  9:  * @author     Unknown
 10:  * @copyright  four for business AG <www.4fb.de>
 11:  * @license    http://www.contenido.org/license/LIZENZ.txt
 12:  * @link       http://www.4fb.de
 13:  * @link       http://www.contenido.org
 14:  */
 15: 
 16: defined('CON_FRAMEWORK') || die('Illegal call: Missing framework initialization - request aborted.');
 17: 
 18: define('CON_EXTENSION_AVAILABLE', 1);
 19: 
 20: define('CON_EXTENSION_UNAVAILABLE', 2);
 21: 
 22: define('CON_EXTENSION_CANTCHECK', 3);
 23: 
 24: /**
 25:  * Retrieves the setting $setting from the PHP setup.
 26:  * Wrapper to avoid warnings if ini_get is in the
 27:  * disable_functions directive.
 28:  */
 29: function getPHPIniSetting($setting) {
 30:     // Avoid errors if ini_get is in the disable_functions directive
 31:     $value = @ini_get($setting);
 32: 
 33:     return $value;
 34: }
 35: 
 36: /**
 37:  * Checks if PHP is able to use allow_url_fopen.
 38:  */
 39: function canPHPurlfopen() {
 40:     return getPHPIniSetting('allow_url_fopen');
 41: }
 42: 
 43: /**
 44:  * Checks if the ini_get function is available and not disabled.
 45:  * Returns true if the
 46:  * function is available.
 47:  *
 48:  * Uses the PHP configuration value y2k_compilance which is available in all
 49:  * PHP4 versions.
 50:  */
 51: function checkPHPiniget() {
 52:     $value = @ini_get('y2k_compliance');
 53: 
 54:     if ($value === NULL) {
 55:         return false;
 56:     } else {
 57:         return true;
 58:     }
 59: }
 60: 
 61: function getPHPDisplayErrorSetting() {
 62:     return getPHPIniSetting('display_errors');
 63: }
 64: 
 65: function getPHPFileUploadSetting() {
 66:     return getPHPIniSetting('file_uploads');
 67: }
 68: 
 69: function getPHPGPCOrder() {
 70:     return getPHPIniSetting('gpc_order');
 71: }
 72: 
 73: function getPHPMagicQuotesGPC() {
 74:     return getPHPIniSetting('magic_quotes_gpc');
 75: }
 76: 
 77: function getPHPMagicQuotesRuntime() {
 78:     return getPHPIniSetting('magic_quotes_runtime');
 79: }
 80: 
 81: // @todo Check if sybase still needed
 82: function getPHPMagicQuotesSybase() {
 83:     return getPHPIniSetting('magic_quotes_sybase');
 84: }
 85: 
 86: function getPHPMaxExecutionTime() {
 87:     return getPHPIniSetting('max_execution_time');
 88: }
 89: 
 90: function getPHPOpenBasedirSetting() {
 91:     return getPHPIniSetting('open_basedir');
 92: }
 93: 
 94: function getPHPMaxPostSize() {
 95:     return getPHPIniSetting('post_max_size');
 96: }
 97: 
 98: function checkPHPSQLSafeMode() {
 99:     return getPHPIniSetting('sql.safe_mode');
100: }
101: 
102: function checkPHPUploadMaxFilesize() {
103:     return getPHPIniSetting('upload_max_filesize');
104: }
105: 
106: function getAsBytes($val) {
107:     if (strlen($val) == 0) {
108:         return 0;
109:     }
110:     $val = trim($val);
111:     $last = $val{strlen($val) - 1};
112:     switch ($last) {
113:         case 'k':
114:         case 'K':
115:             return (int) $val * 1024;
116:             break;
117:         case 'm':
118:         case 'M':
119:             return (int) $val * 1048576;
120:             break;
121:         default:
122:             return $val;
123:     }
124: }
125: 
126: function isPHPExtensionLoaded($extension) {
127:     $value = extension_loaded($extension);
128: 
129:     if ($value === NULL) {
130:         return CON_EXTENSION_CANTCHECK;
131:     }
132: 
133:     if ($value === true) {
134:         return CON_EXTENSION_AVAILABLE;
135:     }
136: 
137:     if ($value === false) {
138:         return CON_EXTENSION_UNAVAILABLE;
139:     }
140: }
141: 
142: function isRegisterLongArraysActive() {
143:     if (getPHPIniSetting('register_long_arrays') == false) {
144:         return false;
145:     }
146: 
147:     return true;
148: }
149: 
150: /**
151:  * Checks, if current installed PHP version matches the minimum required PHP version to run CONTENIDO.
152:  * @return bool
153:  */
154: function isPHPCompatible() {
155:     if (version_compare(PHP_VERSION, CON_SETUP_MIN_PHP_VERSION, '>=') == true) {
156:         return true;
157:     } else {
158:         return false;
159:     }
160: }
161: 
162: ?>