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