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  1. <?php
  2.  
  3. /*
  4.  * OIDplus 2.0
  5.  * Copyright 2019 - 2021 Daniel Marschall, ViaThinkSoft
  6.  *
  7.  * Licensed under the Apache License, Version 2.0 (the "License");
  8.  * you may not use this file except in compliance with the License.
  9.  * You may obtain a copy of the License at
  10.  *
  11.  *     http://www.apache.org/licenses/LICENSE-2.0
  12.  *
  13.  * Unless required by applicable law or agreed to in writing, software
  14.  * distributed under the License is distributed on an "AS IS" BASIS,
  15.  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16.  * See the License for the specific language governing permissions and
  17.  * limitations under the License.
  18.  */
  19.  
  20. function oidplus_get_missing_dependencies() {
  21.         $missing_dependencies = array();
  22.  
  23.         if (!extension_loaded('iconv')) {
  24.                 // Alpine Linux: apk add php-iconv
  25.                 $missing_dependencies[] = 'iconv';
  26.         }
  27.  
  28.         if (!extension_loaded('session')) {
  29.                 // Alpine Linux: apk add php-session
  30.                 $missing_dependencies[] = 'session';
  31.         }
  32.  
  33.         if (!extension_loaded('json')) {
  34.                 // Alpine Linux: apk add php-json
  35.                 $missing_dependencies[] = 'json';
  36.         }
  37.  
  38.         if (!extension_loaded('date')) {
  39.                 $missing_dependencies[] = 'date';
  40.         }
  41.  
  42.         if (!extension_loaded('filter')) {
  43.                 $missing_dependencies[] = 'filter';
  44.         }
  45.  
  46.         if (!extension_loaded('hash')) {
  47.                 $missing_dependencies[] = 'hash';
  48.         }
  49.  
  50.         if (!extension_loaded('pcre')) {
  51.                 $missing_dependencies[] = 'pcre';
  52.         }
  53.  
  54.         if (!function_exists('gmp_init')) {
  55.                 // GMP Required for includes/uuid_functions.inc.php
  56.                 //                  includes/ipv6_functions.inc.php
  57.                 //                  plugins/viathinksoft/adminPages/400_oidinfo_export/oidinfo_api.inc.php (if GMP is not available, BC will be used)
  58.                 // Note that gmp_supplement.inc.php will implement the GMP functions if BCMath is present.
  59.                 // This is the reason why we use function_exists('gmp_init') instead of extension_loaded('gmp')
  60.                 if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
  61.                         $install_hint1 = _L('On Windows, install it by enabling the line %1 in your PHP.ini',
  62.                                 'extension=php_gmp.dll');
  63.                         $install_hint2 = _L('On Windows, it should be installed by default');
  64.                 } else {
  65.                         $install_hint1 = _L('On Linux, install it by running e.g. %1, and then restart your webserver service, e.g. by running %2',
  66.                                 '<code>sudo apt-get update && sudo apt-get install php-gmp</code>',
  67.                                 '<code>sudo service apache2 restart</code>');
  68.                         $install_hint2 = _L('On Linux, install it by running e.g. %1, and then restart your webserver service, e.g. by running %2',
  69.                                 '<code>sudo apt-get update && sudo apt-get install php-bcmath</code>',
  70.                                 '<code>sudo service apache2 restart</code>');
  71.                 }
  72.                 $missing_dependencies[] = 'GMP ('.$install_hint1.')'.
  73.                                           '<br>'._L('or alternatively').'<br>' .
  74.                                           'BCMath ('.$install_hint2.')';
  75.         }
  76.  
  77.         if (!function_exists('mb_substr')) {
  78.                 // Required for includes/classes/OIDplusSessionHandler.class.php
  79.                 //              includes/oid_utils.inc.php
  80.                 //              vendor/matthiasmullie/path-converter/src/Converter.php
  81.                 //              vendor/n-other/php-sha3/src/Sha3.php
  82.                 // Note that mbstring_supplement.inc.php will implement the MBString functions if iconv is present.
  83.                 // This is the reason why we use function_exists('mb_substr') instead of extension_loaded('mbstring')
  84.                 if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
  85.                         $install_hint1 = _L('On Windows, install it by enabling the line %1 in your PHP.ini',
  86.                                 'extension=php_mbstring.dll');
  87.                         $install_hint2 = _L('On Windows, it should be installed by default');
  88.                 } else {
  89.                         $install_hint1 = _L('On Linux, install it by running e.g. %1, and then restart your webserver service, e.g. by running %2',
  90.                                 '<code>sudo apt-get update && sudo apt-get install php-mbstring</code>',
  91.                                 '<code>sudo service apache2 restart</code>');
  92.                         $install_hint2 = _L('On Linux, it should be installed by default');
  93.                 }
  94.                 $missing_dependencies[] = 'MBString ('.$install_hint1.')'.
  95.                                           '<br>'._L('or alternatively').'<br>' .
  96.                                           'iconv ('.$install_hint2.')';
  97.         }
  98.  
  99.         if (!function_exists('simplexml_load_file')) {
  100.                 // Required for includes/classes/OIDplusPluginManifest.class.php (Plugins)
  101.                 //              includes/classes/OIDplus.class.php (Translation)
  102.                 //              plugins/viathinksoft/adminPages/400_oidinfo_export/OIDplusPageAdminOIDInfoExport.class.php (Import OID from oid-info.com)
  103.                 //              dev/translation/*.phps (only for developers)
  104.                 // Note: This should not happen because of simplexml_supplement.inc.php
  105.                 if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
  106.                         $install_hint = _L('On Windows, it should be installed by default');
  107.                 } else {
  108.                         $install_hint = _L('On Linux, install it by running e.g. %1, and then restart your webserver service, e.g. by running %2',
  109.                                 '<code>sudo apt-get update && sudo apt-get install php-xml</code>',
  110.                                 '<code>sudo service apache2 restart</code>');
  111.                 }
  112.                 $missing_dependencies[] = 'SimpleXML ('.$install_hint.')';
  113.         }
  114.  
  115.         return $missing_dependencies;
  116. }
  117.