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
  49 // Servers should define a default timezone in php.ini, but if they don't then make sure something is defined.
  50 // This is a quick hack.  Ideally we should ask the admin for a value.  See MDL-22625 for more on this.
  51 if (function_exists('date_default_timezone_set') and function_exists('date_default_timezone_get')) {
  52     @date_default_timezone_set(@date_default_timezone_get());
  53 }
  54
  55 // make sure PHP errors are displayed - helps with diagnosing of problems
  56 @error_reporting(E_ALL);
  57 @ini_set('display_errors', '1');
  58
  59 // Check that PHP is of a sufficient version.
  60 if (version_compare(phpversion(), '5.3.2') < 0) {
  61     $phpversion = phpversion();
  62     // do NOT localise - lang strings would not work here and we CAN not move it after installib
  63     echo "Moodle 2.1 or later requires at least PHP 5.3.2 (currently using version $phpversion).<br />";
  64     echo "Please upgrade your server software or install older Moodle version.";
  65     die;
  66 }
  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 dirname(__FILE__).'/lib/installlib.php';
  91
  92 // TODO: add lang detection here if empty $_REQUEST['lang']
  93
  94 // distro specific customisation
  95 $distro = null;
  96 if (file_exists('install/distrolib.php')) {
  97     require_once('install/distrolib.php');
  98     if (function_exists('distro_get_config')) {
  99         $distro = distro_get_config();
 100     }
 101 }
 102
 103 $config = new stdClass();
 104 $config->lang = $lang;
 105
 106 if (!empty($_POST)) {
 107     if (install_ini_get_bool('magic_quotes_gpc')) {
 108         $_POST = array_map('stripslashes', $_POST);
 109     }
 110
 111     $config->stage = (int)$_POST['stage'];
 112
 113     if (isset($_POST['previous'])) {
 114         $config->stage--;
 115         if (INSTALL_DATABASETYPE and !empty($distro->dbtype)) {
 116             $config->stage--;
 117         }
 118         if ($config->stage == INSTALL_ENVIRONMENT or $config->stage == INSTALL_DOWNLOADLANG) {
 119             $config->stage--;
 120         }
 121     } else if (isset($_POST['next'])) {
 122         $config->stage++;
 123     }
 124
 125     $config->dbtype   = trim($_POST['dbtype']);
 126     $config->dbhost   = trim($_POST['dbhost']);
 127     $config->dbuser   = trim($_POST['dbuser']);
 128     $config->dbpass   = trim($_POST['dbpass']);
 129     $config->dbname   = trim($_POST['dbname']);
 130     $config->prefix   = trim($_POST['prefix']);
 131     $config->dbsocket = (int)(!empty($_POST['dbsocket']));
 132
 133     $config->admin    = empty($_POST['admin']) ? 'admin' : trim($_POST['admin']);
 134
 135     $config->dataroot = trim($_POST['dataroot']);
 136
 137 } else {
 138     $config->stage    = INSTALL_WELCOME;
 139
 140     $config->dbtype   = empty($distro->dbtype) ? '' : $distro->dbtype; // let distro skip dbtype selection
 141     $config->dbhost   = empty($distro->dbhost) ? 'localhost' : $distro->dbhost; // let distros set dbhost
 142     $config->dbuser   = empty($distro->dbuser) ? '' : $distro->dbuser; // let distros set dbuser
 143     $config->dbpass   = '';
 144     $config->dbname   = 'moodle';
 145     $config->prefix   = 'mdl_';
 146     $config->dbsocket = 0;
 147
 148     $config->admin    = 'admin';
 149
 150     $config->dataroot = empty($distro->dataroot) ? null  : $distro->dataroot; // initialised later after including libs or by distro
 151 }
 152
 153 // Fake some settings so that we can use selected functions from moodlelib.php and weblib.php
 154 $CFG = new stdClass();
 155 $CFG->lang                 = $config->lang;
 156 $CFG->dirroot              = dirname(__FILE__);
 157 $CFG->libdir               = "$CFG->dirroot/lib";
 158 $CFG->wwwroot              = install_guess_wwwroot(); // can not be changed - ppl must use the real address when installing
 159 $CFG->httpswwwroot         = $CFG->wwwroot;
 160 $CFG->dataroot             = $config->dataroot;
 161 $CFG->tempdir              = $CFG->dataroot.'/temp';
 162 $CFG->cachedir             = $CFG->dataroot.'/cache';
 163 $CFG->admin                = $config->admin;
 164 $CFG->docroot              = 'http://docs.moodle.org';
 165 $CFG->langotherroot        = $CFG->dataroot.'/lang';
 166 $CFG->langlocalroot        = $CFG->dataroot.'/lang';
 167 $CFG->directorypermissions = isset($distro->directorypermissions) ? $distro->directorypermissions : 00777; // let distros set dir permissions
 168 $CFG->running_installer    = true;
 169 $CFG->early_install_lang   = true;
 170
 171 // Require all needed libs
 172 require_once($CFG->libdir.'/setuplib.php');
 173
 174 // we need to make sure we have enough memory to load all libraries
 175 $memlimit = @ini_get('memory_limit');
 176 if (!empty($memlimit) and $memlimit != -1) {
 177     if (get_real_size($memlimit) < get_real_size($minrequiredmemory)) {
 178         // do NOT localise - lang strings would not work here and we CAN not move it to later place
 179         echo "Moodle requires at least {$minrequiredmemory}B of PHP memory.<br />";
 180         echo "Please contact server administrator to fix PHP.ini memory settings.";
 181         die;
 182     }
 183 }
 184
 185 // Continue with lib loading
 186 require_once($CFG->libdir.'/textlib.class.php');
 187 require_once($CFG->libdir.'/weblib.php');
 188 require_once($CFG->libdir.'/outputlib.php');
 189 require_once($CFG->libdir.'/dmllib.php');
 190 require_once($CFG->libdir.'/moodlelib.php');
 191 require_once($CFG->libdir .'/pagelib.php');
 192 require_once($CFG->libdir.'/deprecatedlib.php');
 193 require_once($CFG->libdir.'/adminlib.php');
 194 require_once($CFG->libdir.'/environmentlib.php');
 195 require_once($CFG->libdir.'/componentlib.class.php');
 196
 197 //point pear include path to moodles lib/pear so that includes and requires will search there for files before anywhere else
 198 //the problem is that we need specific version of quickforms and hacked excel files :-(
 199 ini_set('include_path', $CFG->libdir.'/pear' . PATH_SEPARATOR . ini_get('include_path'));
 200 //point zend include path to moodles lib/zend so that includes and requires will search there for files before anywhere else
 201 ini_set('include_path', $CFG->libdir.'/zend' . PATH_SEPARATOR . ini_get('include_path'));
 202
 203 require('version.php');
 204 $CFG->target_release = $release;
 205
 206 $SESSION = new stdClass();
 207 $SESSION->lang = $CFG->lang;
 208
 209 $USER = new stdClass();
 210 $USER->id = 0;
 211
 212 $COURSE = new stdClass();
 213 $COURSE->id = 0;
 214
 215 $SITE = $COURSE;
 216 define('SITEID', 0);
 217
 218 $hint_dataroot = '';
 219 $hint_admindir = '';
 220 $hint_database = '';
 221
 222 // Are we in help mode?
 223 if (isset($_GET['help'])) {
 224     install_print_help_page($_GET['help']);
 225 }
 226
 227 //first time here? find out suitable dataroot
 228 if (is_null($CFG->dataroot)) {
 229     $CFG->dataroot = dirname(dirname(__FILE__)).DIRECTORY_SEPARATOR.'moodledata';
 230
 231     $i = 0; //safety check - dirname might return some unexpected results
 232     while(is_dataroot_insecure()) {
 233         $parrent = dirname($CFG->dataroot);
 234         $i++;
 235         if ($parrent == '/' or $parrent == '.' or preg_match('/^[a-z]:\\\?$/i', $parrent) or ($i > 100)) {
 236             $CFG->dataroot = ''; //can not find secure location for dataroot
 237             break;
 238         }
 239         $CFG->dataroot = dirname($parrent).DIRECTORY_SEPARATOR.'moodledata';
 240     }
 241     $config->dataroot = $CFG->dataroot;
 242     $config->stage    = INSTALL_WELCOME;
 243 }
 244
 245 // now let's do the stage work
 246 if ($config->stage < INSTALL_WELCOME) {
 247     $config->stage = INSTALL_WELCOME;
 248 }
 249 if ($config->stage > INSTALL_SAVE) {
 250     $config->stage = INSTALL_SAVE;
 251 }
 252
 253
 254
 255 if ($config->stage == INSTALL_SAVE) {
 256     $CFG->early_install_lang = false;
 257
 258     $database = moodle_database::get_driver_instance($config->dbtype, 'native');
 259     if (!$database->driver_installed()) {
 260         $config->stage = INSTALL_DATABASETYPE;
 261     } else {
 262         if (function_exists('distro_pre_create_db')) { // Hook for distros needing to do something before DB creation
 263             $distro = distro_pre_create_db($database, $config->dbhost, $config->dbuser, $config->dbpass, $config->dbname, $config->prefix, array('dbpersist'=>0, 'dbsocket'=>$config->dbsocket), $distro);
 264         }
 265         $hint_database = install_db_validate($database, $config->dbhost, $config->dbuser, $config->dbpass, $config->dbname, $config->prefix, array('dbpersist'=>0, 'dbsocket'=>$config->dbsocket));
 266
 267         if ($hint_database === '') {
 268             $configphp = install_generate_configphp($database, $CFG);
 269
 270             umask(0137);
 271             if (($fh = @fopen($configfile, 'w')) !== false) {
 272                 fwrite($fh, $configphp);
 273                 fclose($fh);
 274             }
 275
 276             if (file_exists($configfile)) {
 277                 // config created, let's continue!
 278                 redirect("$CFG->wwwroot/$config->admin/index.php?lang=$config->lang");
 279             }
 280
 281             install_print_header($config, 'config.php',
 282                                           get_string('configurationcompletehead', 'install'),
 283                                           get_string('configurationcompletesub', 'install').get_string('configfilenotwritten', 'install'));
 284             echo '<div class="configphp"><pre>';
 285             echo p($configphp);
 286             echo '</pre></div>';
 287
 288             install_print_footer($config);
 289             die;
 290
 291         } else {
 292             $config->stage = INSTALL_DATABASE;
 293         }
 294     }
 295 }
 296
 297
 298
 299 if ($config->stage == INSTALL_DOWNLOADLANG) {
 300     if (empty($CFG->dataroot)) {
 301         $config->stage = INSTALL_PATHS;
 302
 303     } else if (is_dataroot_insecure()) {
 304         $hint_dataroot = get_string('pathsunsecuredataroot', 'install');
 305         $config->stage = INSTALL_PATHS;
 306
 307     } else if (!file_exists($CFG->dataroot)) {
 308         $a = new stdClass();
 309         $a->parent = dirname($CFG->dataroot);
 310         $a->dataroot = $CFG->dataroot;
 311         if (!is_writable($a->parent)) {
 312             $hint_dataroot = get_string('pathsroparentdataroot', 'install', $a);
 313             $config->stage = INSTALL_PATHS;
 314         } else {
 315             if (!install_init_dataroot($CFG->dataroot, $CFG->directorypermissions)) {
 316                 $hint_dataroot = get_string('pathserrcreatedataroot', 'install', $a);
 317                 $config->stage = INSTALL_PATHS;
 318             }
 319         }
 320
 321     } else if (!install_init_dataroot($CFG->dataroot, $CFG->directorypermissions)) {
 322         $hint_dataroot = get_string('pathserrcreatedataroot', 'install', array('dataroot' => $CFG->dataroot));
 323         $config->stage = INSTALL_PATHS;
 324     }
 325
 326     if (empty($hint_dataroot) and !is_writable($CFG->dataroot)) {
 327         $hint_dataroot = get_string('pathsrodataroot', 'install');
 328         $config->stage = INSTALL_PATHS;
 329     }
 330
 331     if ($config->admin === '' or !file_exists($CFG->dirroot.'/'.$config->admin.'/environment.xml')) {
 332         $hint_admindir = get_string('pathswrongadmindir', 'install');
 333         $config->stage = INSTALL_PATHS;
 334     }
 335 }
 336
 337
 338
 339 if ($config->stage == INSTALL_DOWNLOADLANG) {
 340     // no need to download anything if en lang selected
 341     if ($CFG->lang == 'en') {
 342         $config->stage = INSTALL_DATABASETYPE;
 343     }
 344 }
 345
 346
 347
 348 if ($config->stage == INSTALL_DATABASETYPE) {
 349     // skip db selection if distro package supports only one db
 350     if (!empty($distro->dbtype)) {
 351         $config->stage = INSTALL_DATABASE;
 352     }
 353 }
 354
 355
 356 if ($config->stage == INSTALL_DOWNLOADLANG) {
 357     $downloaderror = '';
 358
 359     // download and install required lang packs, the lang dir has already been created in install_init_dataroot
 360     $installer = new lang_installer($CFG->lang);
 361     $results = $installer->run();
 362     foreach ($results as $langcode => $langstatus) {
 363         if ($langstatus === lang_installer::RESULT_DOWNLOADERROR) {
 364             $a       = new stdClass();
 365             $a->url  = $installer->lang_pack_url($langcode);
 366             $a->dest = $CFG->dataroot.'/lang';
 367             $downloaderror = get_string('remotedownloaderror', 'error', $a);
 368         }
 369     }
 370
 371     if ($downloaderror !== '') {
 372         install_print_header($config, get_string('language'), get_string('langdownloaderror', 'install', $CFG->lang), $downloaderror);
 373         install_print_footer($config);
 374         die;
 375     } else {
 376         if (empty($distro->dbtype)) {
 377             $config->stage = INSTALL_DATABASETYPE;
 378         } else {
 379             $config->stage = INSTALL_DATABASE;
 380         }
 381     }
 382
 383     // switch the string_manager instance to stop using install/lang/
 384     $CFG->early_install_lang = false;
 385     $CFG->langotherroot      = $CFG->dataroot.'/lang';
 386     $CFG->langlocalroot      = $CFG->dataroot.'/lang';
 387     get_string_manager(true);
 388 }
 389
 390
 391 if ($config->stage == INSTALL_DATABASE) {
 392     $CFG->early_install_lang = false;
 393
 394     $database = moodle_database::get_driver_instance($config->dbtype, 'native');
 395
 396     $sub = '<h3>'.$database->get_name().'</h3>'.$database->get_configuration_help();
 397
 398     install_print_header($config, get_string('database', 'install'), get_string('databasehead', 'install'), $sub);
 399
 400     $strdbhost   = get_string('databasehost', 'install');
 401     $strdbname   = get_string('databasename', 'install');
 402     $strdbuser   = get_string('databaseuser', 'install');
 403     $strdbpass   = get_string('databasepass', 'install');
 404     $strprefix   = get_string('dbprefix', 'install');
 405     $strdbsocket = get_string('databasesocket', 'install');
 406
 407     echo '<div class="userinput">';
 408
 409     $disabled = empty($distro->dbhost) ? '' : 'disabled="disabled';
 410     echo '<div class="formrow"><label for="id_dbhost" class="formlabel">'.$strdbhost.'</label>';
 411     echo '<input id="id_dbhost" name="dbhost" '.$disabled.' type="text" value="'.s($config->dbhost).'" size="50" class="forminput" />';
 412     echo '</div>';
 413
 414     echo '<div class="formrow"><label for="id_dbname" class="formlabel">'.$strdbname.'</label>';
 415     echo '<input id="id_dbname" name="dbname" type="text" value="'.s($config->dbname).'" size="50" class="forminput" />';
 416     echo '</div>';
 417
 418     $disabled = empty($distro->dbuser) ? '' : 'disabled="disabled';
 419     echo '<div class="formrow"><label for="id_dbuser" class="formlabel">'.$strdbuser.'</label>';
 420     echo '<input id="id_dbuser" name="dbuser" '.$disabled.' type="text" value="'.s($config->dbuser).'" size="50" class="forminput" />';
 421     echo '</div>';
 422
 423     echo '<div class="formrow"><label for="id_dbpass" class="formlabel">'.$strdbpass.'</label>';
 424     // no password field here, the password may be visible in config.php if we can not write it to disk
 425     echo '<input id="id_dbpass" name="dbpass" type="text" value="'.s($config->dbpass).'" size="50" class="forminput" />';
 426     echo '</div>';
 427
 428     echo '<div class="formrow"><label for="id_prefix" class="formlabel">'.$strprefix.'</label>';
 429     echo '<input id="id_prefix" name="prefix" type="text" value="'.s($config->prefix).'" size="10" class="forminput" />';
 430     echo '</div>';
 431
 432     if (!(stristr(PHP_OS, 'win') && !stristr(PHP_OS, 'darwin'))) {
 433         $checked = $config->dbsocket ? 'checked="checked' : '';
 434         echo '<div class="formrow"><label for="id_dbsocket" class="formlabel">'.$strdbsocket.'</label>';
 435         echo '<input type="hidden" value="0" name="dbsocket" />';
 436         echo '<input type="checkbox" id="id_dbsocket" value="1" name="dbsocket" '.$checked.' class="forminput" />';
 437         echo '</div>';
 438     }
 439
 440     echo '<div class="hint">'.$hint_database.'</div>';
 441     echo '</div>';
 442     install_print_footer($config);
 443     die;
 444 }
 445
 446
 447 if ($config->stage == INSTALL_DATABASETYPE) {
 448     $CFG->early_install_lang = false;
 449
 450     // Finally ask for DB type
 451     install_print_header($config, get_string('database', 'install'),
 452                                   get_string('databasetypehead', 'install'),
 453                                   get_string('databasetypesub', 'install'));
 454
 455     $databases = array('mysqli' => moodle_database::get_driver_instance('mysqli', 'native'),
 456                        'pgsql'  => moodle_database::get_driver_instance('pgsql',  'native'),
 457                        'oci'    => moodle_database::get_driver_instance('oci',    'native'),
 458                        'sqlsrv' => moodle_database::get_driver_instance('sqlsrv', 'native'), // MS SQL*Server PHP driver
 459                        'mssql'  => moodle_database::get_driver_instance('mssql',  'native'), // FreeTDS driver
 460                       );
 461
 462     echo '<div class="userinput">';
 463     echo '<div class="formrow"><label class="formlabel" for="dbtype">'.get_string('dbtype', 'install').'</label>';
 464     echo '<select id="dbtype" name="dbtype" class="forminput">';
 465     $disabled = array();
 466     $options = array();
 467     foreach ($databases as $type=>$database) {
 468         if ($database->driver_installed() !== true) {
 469             $disabled[$type] = $database;
 470             continue;
 471         }
 472         echo '<option value="'.s($type).'">'.$database->get_name().'</option>';
 473     }
 474     if ($disabled) {
 475         echo '<optgroup label="'.s(get_string('notavailable')).'">';
 476         foreach ($disabled as $type=>$database) {
 477             echo '<option value="'.s($type).'" class="notavailable">'.$database->get_name().'</option>';
 478         }
 479         echo '</optgroup>';
 480     }
 481     echo '</select></div>';
 482     echo '</div>';
 483
 484     install_print_footer($config);
 485     die;
 486 }
 487
 488
 489
 490 if ($config->stage == INSTALL_ENVIRONMENT or $config->stage == INSTALL_PATHS) {
 491     $version_fail = (version_compare(phpversion(), "5.3.2") < 0);
 492     $curl_fail    = ($lang !== 'en' and !extension_loaded('curl')); // needed for lang pack download
 493     $zip_fail     = ($lang !== 'en' and !extension_loaded('zip'));  // needed for lang pack download
 494
 495     if ($version_fail or $curl_fail or $zip_fail) {
 496         $config->stage = INSTALL_ENVIRONMENT;
 497
 498         install_print_header($config, get_string('environmenthead', 'install'),
 499                                       get_string('errorsinenvironment', 'install'),
 500                                       get_string('environmentsub2', 'install'));
 501
 502         echo '<div id="envresult"><dl>';
 503         if ($version_fail) {
 504             $a = (object)array('needed'=>'5.3.2', 'current'=>phpversion());
 505             echo '<dt>'.get_string('phpversion', 'install').'</dt><dd>'.get_string('environmentrequireversion', 'admin', $a).'</dd>';
 506         }
 507         if ($curl_fail) {
 508             echo '<dt>'.get_string('phpextension', 'install', 'cURL').'</dt><dd>'.get_string('environmentrequireinstall', 'admin').'</dd>';
 509         }
 510         if ($zip_fail) {
 511             echo '<dt>'.get_string('phpextension', 'install', 'Zip').'</dt><dd>'.get_string('environmentrequireinstall', 'admin').'</dd>';
 512         }
 513         echo '</dl></div>';
 514
 515         install_print_footer($config, true);
 516         die;
 517
 518     } else {
 519         $config->stage = INSTALL_PATHS;
 520     }
 521 }
 522
 523
 524
 525 if ($config->stage == INSTALL_PATHS) {
 526     $paths = array('wwwroot'  => get_string('wwwroot', 'install'),
 527                    'dirroot'  => get_string('dirroot', 'install'),
 528                    'dataroot' => get_string('dataroot', 'install'));
 529
 530     $sub = '<dl>';
 531     foreach ($paths as $path=>$name) {
 532         $sub .= '<dt>'.$name.'</dt><dd>'.get_string('pathssub'.$path, 'install').'</dd>';
 533     }
 534     if (!file_exists("$CFG->dirroot/admin/environment.xml")) {
 535         $sub .= '<dt>'.get_string('admindirname', 'install').'</dt><dd>'.get_string('pathssubadmindir', 'install').'</dd>';
 536     }
 537     $sub .= '</dl>';
 538
 539     install_print_header($config, get_string('paths', 'install'), get_string('pathshead', 'install'), $sub);
 540
 541     $strwwwroot      = get_string('wwwroot', 'install');
 542     $strdirroot      = get_string('dirroot', 'install');
 543     $strdataroot     = get_string('dataroot', 'install');
 544     $stradmindirname = get_string('admindirname', 'install');
 545
 546     echo '<div class="userinput">';
 547     echo '<div class="formrow"><label for="id_wwwroot" class="formlabel">'.$paths['wwwroot'].'</label>';
 548     echo '<input id="id_wwwroot" name="wwwroot" type="text" value="'.s($CFG->wwwroot).'" disabled="disabled" size="70" class="forminput" />';
 549     echo '</div>';
 550
 551     echo '<div class="formrow"><label for="id_dirroot" class="formlabel">'.$paths['dirroot'].'</label>';
 552     echo '<input id="id_dirroot" name="dirroot" type="text" value="'.s($CFG->dirroot).'" disabled="disabled" size="70"class="forminput" />';
 553     echo '</div>';
 554
 555     echo '<div class="formrow"><label for="id_dataroot" class="formlabel">'.$paths['dataroot'].'</label>';
 556     echo '<input id="id_dataroot" name="dataroot" type="text" value="'.s($config->dataroot).'" size="70" class="forminput" />';
 557     if ($hint_dataroot !== '') {
 558         echo '<div class="hint">'.$hint_dataroot.'</div>';
 559     }
 560     echo '</div>';
 561
 562
 563     if (!file_exists("$CFG->dirroot/admin/environment.xml")) {
 564         echo '<div class="formrow"><label for="id_admin" class="formlabel">'.$paths['admindir'].'</label>';
 565         echo '<input id="id_admin" name="admin" type="text" value="'.s($config->admin).'" size="10" class="forminput" />';
 566         if ($hint_admindir !== '') {
 567             echo '<div class="hint">'.$hint_admindir.'</div>';
 568         }
 569         echo '</div>';
 570     }
 571
 572     echo '</div>';
 573
 574     install_print_footer($config);
 575     die;
 576 }
 577
 578
 579
 580 $config->stage = INSTALL_WELCOME;
 581
 582 if ($distro) {
 583     ob_start();
 584     include('install/distribution.html');
 585     $sub = ob_get_clean();
 586
 587     install_print_header($config, get_string('language'),
 588                                   get_string('chooselanguagehead', 'install'),
 589                                   $sub);
 590
 591 } else {
 592     install_print_header($config, get_string('language'),
 593                                   get_string('chooselanguagehead', 'install'),
 594                                   get_string('chooselanguagesub', 'install'));
 595 }
 596
 597 $languages = get_string_manager()->get_list_of_translations();
 598 echo '<div class="userinput">';
 599 echo '<div class="formrow"><label class="formlabel" for="langselect">'.get_string('language').'</label>';
 600 echo '<select id="langselect" name="lang" class="forminput" onchange="this.form.submit()">';
 601 foreach ($languages as $name=>$value) {
 602     $selected = ($name == $CFG->lang) ? 'selected="selected"' : '';
 603     echo '<option value="'.s($name).'" '.$selected.'>'.$value.'</option>';
 604 }
 605 echo '</select></div>';
 606 echo '</div>';
 607
 608 install_print_footer($config);
 609 die;
 610