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Differences Between: [Versions 310 and 403] [Versions 311 and 403] [Versions 39 and 403] [Versions 400 and 403] [Versions 401 and 403] [Versions 402 and 403]

   1  <?php
   2  
   3  // This file is part of Moodle - http://moodle.org/
   4  //
   5  // Moodle is free software: you can redistribute it and/or modify
   6  // it under the terms of the GNU General Public License as published by
   7  // the Free Software Foundation, either version 3 of the License, or
   8  // (at your option) any later version.
   9  //
  10  // Moodle is distributed in the hope that it will be useful,
  11  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  // GNU General Public License for more details.
  14  //
  15  // You should have received a copy of the GNU General Public License
  16  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  17  
  18  /**
  19   * This script creates config.php file during installation.
  20   *
  21   * @package    core
  22   * @subpackage install
  23   * @copyright  2009 Petr Skoda (http://skodak.org)
  24   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  25   */
  26  
  27  if (isset($_REQUEST['lang'])) {
  28      $lang = preg_replace('/[^A-Za-z0-9_-]/i', '', $_REQUEST['lang']);
  29  } else {
  30      $lang = 'en';
  31  }
  32  
  33  if (isset($_REQUEST['admin'])) {
  34      $admin = preg_replace('/[^A-Za-z0-9_-]/i', '', $_REQUEST['admin']);
  35  } else {
  36      $admin = 'admin';
  37  }
  38  
  39  // If config.php exists we just created config.php and need to redirect to continue installation
  40  $configfile = './config.php';
  41  if (file_exists($configfile)) {
  42      header("Location: $admin/index.php?lang=$lang");
  43      die;
  44  }
  45  
  46  define('CLI_SCRIPT', false); // prevents some warnings later
  47  define('AJAX_SCRIPT', false); // prevents some warnings later
  48  define('CACHE_DISABLE_ALL', true); // Disables caching.. just in case.
  49  define('PHPUNIT_TEST', false);
  50  define('IGNORE_COMPONENT_CACHE', true);
  51  define('MDL_PERF_TEST', false);
  52  define('MDL_PERF', false);
  53  define('MDL_PERFTOFOOT', false);
  54  define('MDL_PERFTOLOG', false);
  55  define('MDL_PERFINC', false);
  56  
  57  // Servers should define a default timezone in php.ini, but if they don't then make sure something is defined.
  58  if (!function_exists('date_default_timezone_set') or !function_exists('date_default_timezone_get')) {
  59      echo("Timezone functions are not available.");
  60      die;
  61  }
  62  date_default_timezone_set(@date_default_timezone_get());
  63  
  64  // make sure PHP errors are displayed - helps with diagnosing of problems
  65  @error_reporting(E_ALL);
  66  @ini_set('display_errors', '1');
  67  
  68  // Check that PHP is of a sufficient version as soon as possible.
  69  require_once (__DIR__.'/lib/phpminimumversionlib.php');
  70  moodle_require_minimum_php_version();
  71  
  72  // make sure iconv is available and actually works
  73  if (!function_exists('iconv')) {
  74      // this should not happen, this must be very borked install
  75      echo 'Moodle requires the iconv PHP extension. Please install or enable the iconv extension.';
  76      die();
  77  }
  78  
  79  if (PHP_INT_SIZE > 4) {
  80      // most probably 64bit PHP - we need a lot more memory
  81      $minrequiredmemory = '70M';
  82  } else {
  83      // 32bit PHP
  84      $minrequiredmemory = '40M';
  85  }
  86  // increase or decrease available memory - we need to make sure moodle
  87  // installs even with low memory, otherwise developers would overlook
  88  // sudden increases of memory needs ;-)
  89  @ini_set('memory_limit', $minrequiredmemory);
  90  
  91  /** Used by library scripts to check they are being called by Moodle */
  92  define('MOODLE_INTERNAL', true);
  93  
  94  require_once (__DIR__.'/lib/classes/component.php');
  95  require_once (__DIR__.'/lib/installlib.php');
  96  
  97  // TODO: add lang detection here if empty $_REQUEST['lang']
  98  
  99  // distro specific customisation
 100  $distro = null;
 101  if (file_exists('install/distrolib.php')) {
 102      require_once('install/distrolib.php');
 103      if (function_exists('distro_get_config')) {
 104          $distro = distro_get_config();
 105      }
 106  }
 107  
 108  $config = new stdClass();
 109  $config->lang = $lang;
 110  
 111  if (!empty($_POST)) {
 112      $config->stage = (int)$_POST['stage'];
 113  
 114      if (isset($_POST['previous'])) {
 115          $config->stage--;
 116          if (INSTALL_DATABASETYPE and !empty($distro->dbtype)) {
 117              $config->stage--;
 118          }
 119          if ($config->stage == INSTALL_ENVIRONMENT or $config->stage == INSTALL_DOWNLOADLANG) {
 120              $config->stage--;
 121          }
 122      } else if (isset($_POST['next'])) {
 123          $config->stage++;
 124      }
 125  
 126      $config->dbtype   = trim($_POST['dbtype']);
 127      $config->dbhost   = trim($_POST['dbhost']);
 128      $config->dbuser   = trim($_POST['dbuser']);
 129      $config->dbpass   = trim($_POST['dbpass']);
 130      $config->dbname   = trim($_POST['dbname']);
 131      $config->prefix   = trim($_POST['prefix']);
 132      $config->dbport   = (int)trim($_POST['dbport']);
 133      $config->dbsocket = trim($_POST['dbsocket']);
 134  
 135      if ($config->dbport <= 0) {
 136          $config->dbport = '';
 137      }
 138  
 139      $config->admin    = empty($_POST['admin']) ? 'admin' : trim($_POST['admin']);
 140  
 141      $config->dataroot = trim($_POST['dataroot']);
 142  
 143  } else {
 144      $config->stage    = INSTALL_WELCOME;
 145  
 146      $config->dbtype   = empty($distro->dbtype) ? '' : $distro->dbtype; // let distro skip dbtype selection
 147      $config->dbhost   = empty($distro->dbhost) ? 'localhost' : $distro->dbhost; // let distros set dbhost
 148      $config->dbuser   = empty($distro->dbuser) ? '' : $distro->dbuser; // let distros set dbuser
 149      $config->dbpass   = '';
 150      $config->dbname   = 'moodle';
 151      $config->prefix   = 'mdl_';
 152      $config->dbport   = empty($distro->dbport) ? '' : $distro->dbport;
 153      $config->dbsocket = empty($distro->dbsocket) ? '' : $distro->dbsocket;
 154  
 155      $config->admin    = 'admin';
 156  
 157      $config->dataroot = empty($distro->dataroot) ? null  : $distro->dataroot; // initialised later after including libs or by distro
 158  }
 159  
 160  // Fake some settings so that we can use selected functions from moodlelib.php, weblib.php and filelib.php.
 161  global $CFG;
 162  $CFG = new stdClass();
 163  $CFG->lang                 = $config->lang;
 164  $CFG->dirroot              = __DIR__;
 165  $CFG->libdir               = "$CFG->dirroot/lib";
 166  $CFG->wwwroot              = install_guess_wwwroot(); // can not be changed - ppl must use the real address when installing
 167  $CFG->httpswwwroot         = $CFG->wwwroot;
 168  $CFG->dataroot             = $config->dataroot;
 169  $CFG->tempdir              = $CFG->dataroot.'/temp';
 170  $CFG->backuptempdir        = $CFG->tempdir.'/backup';
 171  $CFG->cachedir             = $CFG->dataroot.'/cache';
 172  $CFG->localcachedir        = $CFG->dataroot.'/localcache';
 173  $CFG->admin                = $config->admin;
 174  $CFG->docroot              = 'https://docs.moodle.org';
 175  $CFG->langotherroot        = $CFG->dataroot.'/lang';
 176  $CFG->langlocalroot        = $CFG->dataroot.'/lang';
 177  $CFG->directorypermissions = isset($distro->directorypermissions) ? $distro->directorypermissions : 00777; // let distros set dir permissions
 178  $CFG->filepermissions      = ($CFG->directorypermissions & 0666);
 179  $CFG->umaskpermissions     = (($CFG->directorypermissions & 0777) ^ 0777);
 180  $CFG->running_installer    = true;
 181  $CFG->early_install_lang   = true;
 182  $CFG->ostype               = (stristr(PHP_OS, 'win') && !stristr(PHP_OS, 'darwin')) ? 'WINDOWS' : 'UNIX';
 183  $CFG->debug                = (E_ALL | E_STRICT);
 184  $CFG->debugdisplay         = true;
 185  $CFG->debugdeveloper       = true;
 186  
 187  // Require all needed libs
 188  require_once($CFG->libdir.'/setuplib.php');
 189  
 190  // we need to make sure we have enough memory to load all libraries
 191  $memlimit = @ini_get('memory_limit');
 192  if (!empty($memlimit) and $memlimit != -1) {
 193      if (get_real_size($memlimit) < get_real_size($minrequiredmemory)) {
 194          // do NOT localise - lang strings would not work here and we CAN not move it to later place
 195          echo "Moodle requires at least {$minrequiredmemory}B of PHP memory.<br />";
 196          echo "Please contact server administrator to fix PHP.ini memory settings.";
 197          die;
 198      }
 199  }
 200  
 201  // Continue with lib loading
 202  require_once($CFG->libdir.'/classes/text.php');
 203  require_once($CFG->libdir.'/classes/string_manager.php');
 204  require_once($CFG->libdir.'/classes/string_manager_install.php');
 205  require_once($CFG->libdir.'/classes/string_manager_standard.php');
 206  require_once($CFG->libdir.'/weblib.php');
 207  require_once($CFG->libdir.'/outputlib.php');
 208  require_once($CFG->libdir.'/dmllib.php');
 209  require_once($CFG->libdir.'/moodlelib.php');
 210  require_once($CFG->libdir .'/pagelib.php');
 211  require_once($CFG->libdir.'/deprecatedlib.php');
 212  require_once($CFG->libdir.'/adminlib.php');
 213  require_once($CFG->libdir.'/environmentlib.php');
 214  require_once($CFG->libdir.'/componentlib.class.php');
 215  require_once($CFG->dirroot.'/cache/lib.php');
 216  
 217  //point pear include path to moodles lib/pear so that includes and requires will search there for files before anywhere else
 218  //the problem is that we need specific version of quickforms and hacked excel files :-(
 219  ini_set('include_path', $CFG->libdir.'/pear' . PATH_SEPARATOR . ini_get('include_path'));
 220  
 221  // Register our classloader, in theory somebody might want to replace it to load other hacked core classes.
 222  // Required because the database checks below lead to session interaction which is going to lead us to requiring autoloaded classes.
 223  if (defined('COMPONENT_CLASSLOADER')) {
 224      spl_autoload_register(COMPONENT_CLASSLOADER);
 225  } else {
 226      spl_autoload_register('core_component::classloader');
 227  }
 228  
 229  require ('version.php');
 230  $CFG->target_release = $release;
 231  
 232  \core\session\manager::init_empty_session();
 233  global $SESSION;
 234  global $USER;
 235  
 236  global $COURSE;
 237  $COURSE = new stdClass();
 238  $COURSE->id = 1;
 239  
 240  global $SITE;
 241  $SITE = $COURSE;
 242  define('SITEID', 1);
 243  
 244  $hint_dataroot = '';
 245  $hint_admindir = '';
 246  $hint_database = '';
 247  
 248  // Are we in help mode?
 249  if (isset($_GET['help'])) {
 250      install_print_help_page($_GET['help']);
 251  }
 252  
 253  //first time here? find out suitable dataroot
 254  if (is_null($CFG->dataroot)) {
 255      $CFG->dataroot = __DIR__.'/../moodledata';
 256  
 257      $i = 0; //safety check - dirname might return some unexpected results
 258      while(is_dataroot_insecure()) {
 259          $parrent = dirname($CFG->dataroot);
 260          $i++;
 261          if ($parrent == '/' or $parrent == '.' or preg_match('/^[a-z]:\\\?$/i', $parrent) or ($i > 100)) {
 262              $CFG->dataroot = ''; //can not find secure location for dataroot
 263              break;
 264          }
 265          $CFG->dataroot = dirname($parrent).DIRECTORY_SEPARATOR.'moodledata';
 266      }
 267      $config->dataroot = $CFG->dataroot;
 268      $config->stage    = INSTALL_WELCOME;
 269  }
 270  
 271  // now let's do the stage work
 272  if ($config->stage < INSTALL_WELCOME) {
 273      $config->stage = INSTALL_WELCOME;
 274  }
 275  if ($config->stage > INSTALL_SAVE) {
 276      $config->stage = INSTALL_SAVE;
 277  }
 278  
 279  
 280  
 281  if ($config->stage == INSTALL_SAVE) {
 282      $CFG->early_install_lang = false;
 283  
 284      $database = moodle_database::get_driver_instance($config->dbtype, 'native');
 285      if (!$database->driver_installed()) {
 286          $config->stage = INSTALL_DATABASETYPE;
 287      } else {
 288          if (function_exists('distro_pre_create_db')) { // Hook for distros needing to do something before DB creation
 289              $distro = distro_pre_create_db($database, $config->dbhost, $config->dbuser, $config->dbpass, $config->dbname, $config->prefix, array('dbpersist'=>0, 'dbport'=>$config->dbport, 'dbsocket'=>$config->dbsocket), $distro);
 290          }
 291          $hint_database = install_db_validate($database, $config->dbhost, $config->dbuser, $config->dbpass, $config->dbname, $config->prefix, array('dbpersist'=>0, 'dbport'=>$config->dbport, 'dbsocket'=>$config->dbsocket));
 292  
 293          if ($hint_database === '') {
 294              $configphp = install_generate_configphp($database, $CFG);
 295  
 296              umask(0137);
 297              if (($fh = @fopen($configfile, 'w')) !== false) {
 298                  fwrite($fh, $configphp);
 299                  fclose($fh);
 300              }
 301  
 302              if (file_exists($configfile)) {
 303                  // config created, let's continue!
 304                  redirect("$CFG->wwwroot/$config->admin/index.php?lang=$config->lang");
 305              }
 306  
 307              install_print_header($config, 'config.php',
 308                                            get_string('configurationcompletehead', 'install'),
 309                                            get_string('configurationcompletesub', 'install').get_string('configfilenotwritten', 'install'), 'alert-error');
 310              echo '<div class="configphp"><pre>';
 311              echo p($configphp);
 312              echo '</pre></div>';
 313  
 314              install_print_footer($config);
 315              die;
 316  
 317          } else {
 318              $config->stage = INSTALL_DATABASE;
 319          }
 320      }
 321  }
 322  
 323  
 324  
 325  if ($config->stage == INSTALL_DOWNLOADLANG) {
 326      if (empty($CFG->dataroot)) {
 327          $config->stage = INSTALL_PATHS;
 328  
 329      } else if (is_dataroot_insecure()) {
 330          $hint_dataroot = get_string('pathsunsecuredataroot', 'install');
 331          $config->stage = INSTALL_PATHS;
 332  
 333      } else if (!file_exists($CFG->dataroot)) {
 334          $a = new stdClass();
 335          $a->parent = dirname($CFG->dataroot);
 336          $a->dataroot = $CFG->dataroot;
 337          if (!is_writable($a->parent)) {
 338              $hint_dataroot = get_string('pathsroparentdataroot', 'install', $a);
 339              $config->stage = INSTALL_PATHS;
 340          } else {
 341              if (!install_init_dataroot($CFG->dataroot, $CFG->directorypermissions)) {
 342                  $hint_dataroot = get_string('pathserrcreatedataroot', 'install', $a);
 343                  $config->stage = INSTALL_PATHS;
 344              }
 345          }
 346  
 347      } else if (!install_init_dataroot($CFG->dataroot, $CFG->directorypermissions)) {
 348          $hint_dataroot = get_string('pathserrcreatedataroot', 'install', array('dataroot' => $CFG->dataroot));
 349          $config->stage = INSTALL_PATHS;
 350      }
 351  
 352      if (empty($hint_dataroot) and !is_writable($CFG->dataroot)) {
 353          $hint_dataroot = get_string('pathsrodataroot', 'install');
 354          $config->stage = INSTALL_PATHS;
 355      }
 356  
 357      if ($config->admin === '' or !file_exists($CFG->dirroot.'/'.$config->admin.'/environment.xml')) {
 358          $hint_admindir = get_string('pathswrongadmindir', 'install');
 359          $config->stage = INSTALL_PATHS;
 360      }
 361  }
 362  
 363  
 364  
 365  if ($config->stage == INSTALL_DOWNLOADLANG) {
 366      // no need to download anything if en lang selected
 367      if ($CFG->lang == 'en') {
 368          $config->stage = INSTALL_DATABASETYPE;
 369      }
 370  }
 371  
 372  
 373  
 374  if ($config->stage == INSTALL_DATABASETYPE) {
 375      // skip db selection if distro package supports only one db
 376      if (!empty($distro->dbtype)) {
 377          $config->stage = INSTALL_DATABASE;
 378      }
 379  }
 380  
 381  
 382  if ($config->stage == INSTALL_DOWNLOADLANG) {
 383      $downloaderror = '';
 384  
 385      // download and install required lang packs, the lang dir has already been created in install_init_dataroot
 386      $installer = new lang_installer($CFG->lang);
 387      $results = $installer->run();
 388      foreach ($results as $langcode => $langstatus) {
 389          if ($langstatus === lang_installer::RESULT_DOWNLOADERROR) {
 390              $a       = new stdClass();
 391              $a->url  = $installer->lang_pack_url($langcode);
 392              $a->dest = $CFG->dataroot.'/lang';
 393              $downloaderror = get_string('remotedownloaderror', 'error', $a);
 394          }
 395      }
 396  
 397      if ($downloaderror !== '') {
 398          install_print_header($config, get_string('language'), get_string('langdownloaderror', 'install', $CFG->lang), $downloaderror);
 399          install_print_footer($config);
 400          die;
 401      } else {
 402          if (empty($distro->dbtype)) {
 403              $config->stage = INSTALL_DATABASETYPE;
 404          } else {
 405              $config->stage = INSTALL_DATABASE;
 406          }
 407      }
 408  
 409      // switch the string_manager instance to stop using install/lang/
 410      $CFG->early_install_lang = false;
 411      $CFG->langotherroot      = $CFG->dataroot.'/lang';
 412      $CFG->langlocalroot      = $CFG->dataroot.'/lang';
 413      get_string_manager(true);
 414  }
 415  
 416  
 417  if ($config->stage == INSTALL_DATABASE) {
 418      $CFG->early_install_lang = false;
 419  
 420      $database = moodle_database::get_driver_instance($config->dbtype, 'native');
 421  
 422      $sub = '<h3>'.$database->get_name().'</h3>'.$database->get_configuration_help();
 423  
 424      install_print_header($config, get_string('database', 'install'), get_string('databasehead', 'install'), $sub);
 425  
 426      $strdbhost   = get_string('databasehost', 'install');
 427      $strdbname   = get_string('databasename', 'install');
 428      $strdbuser   = get_string('databaseuser', 'install');
 429      $strdbpass   = get_string('databasepass', 'install');
 430      $strprefix   = get_string('dbprefix', 'install');
 431      $strdbport   = get_string('databaseport', 'install');
 432      $strdbsocket = get_string('databasesocket', 'install');
 433  
 434      echo '<div class="row mb-4">';
 435  
 436      $disabled = empty($distro->dbhost) ? '' : 'disabled="disabled';
 437      echo '<div class="col-md-3 text-md-right pt-1"><label for="id_dbhost">'.$strdbhost.'</label></div>';
 438      echo '<div class="col-md-9" data-fieldtype="text">';
 439      echo '<input id="id_dbhost" name="dbhost" '.$disabled.' type="text" class="form-control text-ltr" value="'.s($config->dbhost).'" size="50" /></div>';
 440      echo '</div>';
 441  
 442      echo '<div class="row mb-4">';
 443      echo '<div class="col-md-3 text-md-right pt-1"><label for="id_dbname">'.$strdbname.'</label></div>';
 444      echo '<div class="col-md-9" data-fieldtype="text">';
 445      echo '<input id="id_dbname" name="dbname" type="text" class="form-control text-ltr" value="'.s($config->dbname).'" size="50" /></div>';
 446      echo '</div>';
 447  
 448      $disabled = empty($distro->dbuser) ? '' : 'disabled="disabled';
 449      echo '<div class="row mb-4">';
 450      echo '<div class="col-md-3 text-md-right pt-1"><label for="id_dbuser">'.$strdbuser.'</label></div>';
 451      echo '<div class="col-md-9" data-fieldtype="text">';
 452      echo '<input id="id_dbuser" name="dbuser" '.$disabled.' type="text" class="form-control text-ltr" value="'.s($config->dbuser).'" size="50" /></div>';
 453      echo '</div>';
 454  
 455      echo '<div class="row mb-4">';
 456      echo '<div class="col-md-3 text-md-right pt-1"><label for="id_dbpass">'.$strdbpass.'</label></div>';
 457      // no password field here, the password may be visible in config.php if we can not write it to disk
 458      echo '<div class="col-md-9" data-fieldtype="text">';
 459      echo '<input id="id_dbpass" name="dbpass" type="text" class="form-control text-ltr" value="'.s($config->dbpass).'" size="50" /></div>';
 460      echo '</div>';
 461  
 462      echo '<div class="row mb-4">';
 463      echo '<div class="col-md-3 text-md-right pt-1"><label for="id_prefix">'.$strprefix.'</label></div>';
 464      echo '<div class="col-md-9" data-fieldtype="text">';
 465      echo '<input id="id_prefix" name="prefix" type="text" class="form-control text-ltr" value="'.s($config->prefix).'" size="10" /></div>';
 466      echo '</div>';
 467  
 468      echo '<div class="row mb-4">';
 469      echo '<div class="col-md-3 text-md-right pt-1"><label for="id_prefix">'.$strdbport.'</label></div>';
 470      echo '<div class="col-md-9" data-fieldtype="text">';
 471      echo '<input id="id_dbport" name="dbport" type="text" class="form-control text-ltr" value="'.s($config->dbport).'" size="10" /></div>';
 472      echo '</div>';
 473  
 474      if (!(stristr(PHP_OS, 'win') && !stristr(PHP_OS, 'darwin'))) {
 475          echo '<div class="row mb-4">';
 476          echo '<div class="col-md-3 text-md-right pt-1"><label for="id_dbsocket">'.$strdbsocket.'</label></div>';
 477          echo '<div class="col-md-9" data-fieldtype="text">';
 478          echo '<input id="id_dbsocket" name="dbsocket" type="text" class="form-control text-ltr" value="'.s($config->dbsocket).'" size="50" /></div>';
 479          echo '</div>';
 480      }
 481  
 482      if ($hint_database !== '') {
 483          echo '<div class="alert alert-danger">'.$hint_database.'</div>';
 484      }
 485      echo '</div>';
 486      install_print_footer($config);
 487      die;
 488  }
 489  
 490  
 491  if ($config->stage == INSTALL_DATABASETYPE) {
 492      $CFG->early_install_lang = false;
 493  
 494      // Finally ask for DB type
 495      install_print_header($config, get_string('database', 'install'),
 496                                    get_string('databasetypehead', 'install'),
 497                                    get_string('databasetypesub', 'install'));
 498  
 499      $databases = array('mysqli' => moodle_database::get_driver_instance('mysqli', 'native'),
 500                         'auroramysql' => moodle_database::get_driver_instance('auroramysql', 'native'),
 501                         'mariadb'=> moodle_database::get_driver_instance('mariadb', 'native'),
 502                         'pgsql'  => moodle_database::get_driver_instance('pgsql',  'native'),
 503                         'oci'    => moodle_database::get_driver_instance('oci',    'native'),
 504                         'sqlsrv' => moodle_database::get_driver_instance('sqlsrv', 'native'), // MS SQL*Server PHP driver
 505                        );
 506  
 507      echo '<div class="row mb-4">';
 508      echo '<div class="col-md-3 text-md-right pt-1"><label for="dbtype">'.get_string('dbtype', 'install').'</label></div>';
 509      echo '<div class="col-md-9" data-fieldtype="select">';
 510      echo '<select class="form-control" id="dbtype" name="dbtype">';
 511      $disabled = array();
 512      $options = array();
 513      foreach ($databases as $type=>$database) {
 514          if ($database->driver_installed() !== true) {
 515              $disabled[$type] = $database;
 516              continue;
 517          }
 518          echo '<option value="'.s($type).'">'.$database->get_name().'</option>';
 519      }
 520      if ($disabled) {
 521          echo '<optgroup label="'.s(get_string('notavailable')).'">';
 522          foreach ($disabled as $type=>$database) {
 523              echo '<option value="'.s($type).'" class="notavailable">'.$database->get_name().'</option>';
 524          }
 525          echo '</optgroup>';
 526      }
 527      echo '</select></div></div>';
 528  
 529      install_print_footer($config);
 530      die;
 531  }
 532  
 533  
 534  
 535  if ($config->stage == INSTALL_ENVIRONMENT or $config->stage == INSTALL_PATHS) {
 536      $curl_fail    = ($lang !== 'en' and !extension_loaded('curl')); // needed for lang pack download
 537      $zip_fail     = ($lang !== 'en' and !extension_loaded('zip'));  // needed for lang pack download
 538  
 539      if ($curl_fail or $zip_fail) {
 540          $config->stage = INSTALL_ENVIRONMENT;
 541  
 542          install_print_header($config, get_string('environmenthead', 'install'),
 543                                        get_string('errorsinenvironment', 'install'),
 544                                        get_string('environmentsub2', 'install'));
 545  
 546          echo '<div id="envresult"><dl>';
 547          if ($curl_fail) {
 548              echo '<dt>'.get_string('phpextension', 'install', 'cURL').'</dt><dd>'.get_string('environmentrequireinstall', 'admin').'</dd>';
 549          }
 550          if ($zip_fail) {
 551              echo '<dt>'.get_string('phpextension', 'install', 'Zip').'</dt><dd>'.get_string('environmentrequireinstall', 'admin').'</dd>';
 552          }
 553          echo '</dl></div>';
 554  
 555          install_print_footer($config, true);
 556          die;
 557  
 558      } else {
 559          $config->stage = INSTALL_PATHS;
 560      }
 561  }
 562  
 563  
 564  
 565  if ($config->stage == INSTALL_PATHS) {
 566      $paths = array('wwwroot'  => get_string('wwwroot', 'install'),
 567                     'dirroot'  => get_string('dirroot', 'install'),
 568                     'dataroot' => get_string('dataroot', 'install'));
 569  
 570      $sub = '<dl>';
 571      foreach ($paths as $path=>$name) {
 572          $sub .= '<dt>'.$name.'</dt><dd>'.get_string('pathssub'.$path, 'install').'</dd>';
 573      }
 574      if (!file_exists("$CFG->dirroot/admin/environment.xml")) {
 575          $sub .= '<dt>'.get_string('admindirname', 'install').'</dt><dd>'.get_string('pathssubadmindir', 'install').'</dd>';
 576      }
 577      $sub .= '</dl>';
 578  
 579      install_print_header($config, get_string('paths', 'install'), get_string('pathshead', 'install'), $sub);
 580  
 581      $strwwwroot      = get_string('wwwroot', 'install');
 582      $strdirroot      = get_string('dirroot', 'install');
 583      $strdataroot     = get_string('dataroot', 'install');
 584      $stradmindirname = get_string('admindirname', 'install');
 585  
 586      echo '<div class="row mb-4">';
 587      echo '<div class="col-md-3 text-md-right pt-1"><label for="id_wwwroot">'.$paths['wwwroot'].'</label></div>';
 588      echo '<div class="col-md-9" data-fieldtype="text">';
 589      echo '<input id="id_wwwroot" name="wwwroot" type="text" class="form-control text-ltr" value="'.s($CFG->wwwroot).'" disabled="disabled" size="70" /></div>';
 590      echo '</div>';
 591  
 592      echo '<div class="row mb-4">';
 593      echo '<div class="col-md-3 text-md-right pt-1"><label for="id_dirroot">'.$paths['dirroot'].'</label></div>';
 594      echo '<div class="col-md-9" data-fieldtype="text">';
 595      echo '<input id="id_dirroot" name="dirroot" type="text" class="form-control text-ltr" value="'.s($CFG->dirroot).'" disabled="disabled" size="70" /></div>';
 596      echo '</div>';
 597  
 598      echo '<div class="row mb-4">';
 599      echo '<div class="col-md-3 text-md-right pt-1"><label for="id_dataroot">'.$paths['dataroot'].'</label></div>';
 600      echo '<div class="col-md-9" data-fieldtype="text">';
 601      echo '<input id="id_dataroot" name="dataroot" type="text" class="form-control text-ltr" value="'.s($config->dataroot).'" size="70" /></div>';
 602      echo '</div>';
 603      if ($hint_dataroot !== '') {
 604          echo '<div class="alert alert-danger">'.$hint_dataroot.'</div>';
 605      }
 606  
 607  
 608      if (!file_exists("$CFG->dirroot/admin/environment.xml")) {
 609          echo '<div class="row mb-4">';
 610          echo '<div class="col-md-3 text-md-right pt-1"><label for="id_admin">'.$paths['admindir'].'</label></div>';
 611          echo '<div class="col-md-9" data-fieldtype="text">';
 612          echo '<input id="id_admin" name="admin" type="text" class="form-control text-ltr" value="'.s($config->admin).'" size="10" /></div>';
 613          echo '</div>';
 614          if ($hint_admindir !== '') {
 615              echo '<div class="alert alert-danger">'.$hint_admindir.'</div>';
 616          }
 617          echo '</div>';
 618      }
 619  
 620      echo '</div>';
 621  
 622      install_print_footer($config);
 623      die;
 624  }
 625  
 626  
 627  
 628  $config->stage = INSTALL_WELCOME;
 629  
 630  if ($distro) {
 631      ob_start();
 632      include('install/distribution.html');
 633      $sub = ob_get_clean();
 634  
 635      install_print_header($config, get_string('language'),
 636                                    get_string('chooselanguagehead', 'install'),
 637                                    $sub, 'alert-success');
 638  
 639  } else {
 640      install_print_header($config, get_string('language'),
 641                                    get_string('chooselanguagehead', 'install'),
 642                                    get_string('chooselanguagesub', 'install'));
 643  }
 644  
 645  $languages = get_string_manager()->get_list_of_translations();
 646  echo '<div class="row mb-4">';
 647  echo '<div class="col-md-3 text-md-right pt-1"><label for="langselect">'.get_string('language').'</label></div>';
 648  echo '<div class="col-md-9" data-fieldtype="select">';
 649  echo '<select id="langselect" class="form-control" name="lang" onchange="this.form.submit()">';
 650  foreach ($languages as $name=>$value) {
 651      $selected = ($name == $CFG->lang) ? 'selected="selected"' : '';
 652      echo '<option value="'.s($name).'" '.$selected.'>'.$value.'</option>';
 653  }
 654  echo '</select></div>';
 655  echo '</div>';
 656  
 657  install_print_footer($config);
 658  die;
 659