install.php

   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