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 // PHP 5.2.0 is intentionally checked here even though a higher version is required by the environment
  61 // check. This is not a typo - see MDL-18112
  62 if (version_compare(phpversion(), "5.2.0") < 0) {
  63     $phpversion = phpversion();
  64     // do NOT localise - lang strings would not work here and we CAN not move it after installib
  65     echo "Moodle 2.1 or later requires at least PHP 5.3.2 (currently using version $phpversion).<br />";
  66     echo "Please upgrade your server software or install older Moodle version.";
  67     die;
  68 }
  69
  70 // make sure iconv is available and actually works
  71 if (!function_exists('iconv')) {
  72     // this should not happen, this must be very borked install
  73     echo 'Moodle requires the iconv PHP extension. Please install or enable the iconv extension.';
  74     die();
  75 }
  76
  77 if (PHP_INT_SIZE > 4) {
  78     // most probably 64bit PHP - we need a lot more memory
  79     $minrequiredmemory = '70M';
  80 } else {
  81     // 32bit PHP
  82     $minrequiredmemory = '40M';
  83 }
  84 // increase or decrease available memory - we need to make sure moodle
  85 // installs even with low memory, otherwise developers would overlook
  86 // sudden increases of memory needs ;-)
  87 @ini_set('memory_limit', $minrequiredmemory);
  88
  89 /** Used by library scripts to check they are being called by Moodle */
  90 define('MOODLE_INTERNAL', true);
  91
  92 require dirname(__FILE__).'/lib/installlib.php';
  93
  94 // TODO: add lang detection here if empty $_REQUEST['lang']
  95
  96 // distro specific customisation
  97 $distro = null;
  98 if (file_exists('install/distrolib.php')) {
  99     require_once('install/distrolib.php');
 100     if (function_exists('distro_get_config')) {
 101         $distro = distro_get_config();
 102     }
 103 }
 104
 105 $config = new stdClass();
 106 $config->lang = $lang;
 107
 108 if (!empty($_POST)) {
 109     if (install_ini_get_bool('magic_quotes_gpc')) {
 110         $_POST = array_map('stripslashes', $_POST);
 111     }
 112
 113     $config->stage = (int)$_POST['stage'];
 114
 115     if (isset($_POST['previous'])) {
 116         $config->stage--;
 117         if (INSTALL_DATABASETYPE and !empty($distro->dbtype)) {
 118             $config->stage--;
 119         }
 120         if ($config->stage == INSTALL_ENVIRONMENT or $config->stage == INSTALL_DOWNLOADLANG) {
 121             $config->stage--;
 122         }
 123     } else if (isset($_POST['next'])) {
 124         $config->stage++;
 125     }
 126
 127     $config->dbtype   = trim($_POST['dbtype']);
 128     $config->dbhost   = trim($_POST['dbhost']);
 129     $config->dbuser   = trim($_POST['dbuser']);
 130     $config->dbpass   = trim($_POST['dbpass']);
 131     $config->dbname   = trim($_POST['dbname']);
 132     $config->prefix   = trim($_POST['prefix']);
 133     $config->dbsocket = (int)(!empty($_POST['dbsocket']));
 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->dbsocket = 0;
 149
 150     $config->admin    = 'admin';
 151
 152     $config->dataroot = empty($distro->dataroot) ? null  : $distro->dataroot; // initialised later after including libs or by distro
 153 }
 154
 155 // Fake some settings so that we can use selected functions from moodlelib.php and weblib.php
 156 $CFG = new stdClass();
 157 $CFG->lang                 = $config->lang;
 158 $CFG->dirroot              = dirname(__FILE__);
 159 $CFG->libdir               = "$CFG->dirroot/lib";
 160 $CFG->wwwroot              = install_guess_wwwroot(); // can not be changed - ppl must use the real address when installing
 161 $CFG->httpswwwroot         = $CFG->wwwroot;
 162 $CFG->dataroot             = $config->dataroot;
 163 $CFG->tempdir              = $CFG->dataroot.'/temp';
 164 $CFG->cachedir             = $CFG->dataroot.'/cache';
 165 $CFG->admin                = $config->admin;
 166 $CFG->docroot              = 'http://docs.moodle.org';
 167 $CFG->langotherroot        = $CFG->dataroot.'/lang';
 168 $CFG->langlocalroot        = $CFG->dataroot.'/lang';
 169 $CFG->directorypermissions = isset($distro->directorypermissions) ? $distro->directorypermissions : 00777; // let distros set dir permissions
 170 $CFG->running_installer    = true;
 171 $CFG->early_install_lang   = true;
 172
 173 // Require all needed libs
 174 require_once($CFG->libdir.'/setuplib.php');
 175
 176 // we need to make sure we have enough memory to load all libraries
 177 $memlimit = @ini_get('memory_limit');
 178 if (!empty($memlimit) and $memlimit != -1) {
 179     if (get_real_size($memlimit) < get_real_size($minrequiredmemory)) {
 180         // do NOT localise - lang strings would not work here and we CAN not move it to later place
 181         echo "Moodle requires at least {$minrequiredmemory}B of PHP memory.<br />";
 182         echo "Please contact server administrator to fix PHP.ini memory settings.";
 183         die;
 184     }
 185 }
 186
 187 // Continue with lib loading
 188 require_once($CFG->libdir.'/textlib.class.php');
 189 require_once($CFG->libdir.'/weblib.php');
 190 require_once($CFG->libdir.'/outputlib.php');
 191 require_once($CFG->libdir.'/dmllib.php');
 192 require_once($CFG->libdir.'/moodlelib.php');
 193 require_once($CFG->libdir .'/pagelib.php');
 194 require_once($CFG->libdir.'/deprecatedlib.php');
 195 require_once($CFG->libdir.'/adminlib.php');
 196 require_once($CFG->libdir.'/environmentlib.php');
 197 require_once($CFG->libdir.'/componentlib.class.php');
 198
 199 //point pear include path to moodles lib/pear so that includes and requires will search there for files before anywhere else
 200 //the problem is that we need specific version of quickforms and hacked excel files :-(
 201 ini_set('include_path', $CFG->libdir.'/pear' . PATH_SEPARATOR . ini_get('include_path'));
 202 //point zend include path to moodles lib/zend so that includes and requires will search there for files before anywhere else
 203 ini_set('include_path', $CFG->libdir.'/zend' . PATH_SEPARATOR . ini_get('include_path'));
 204
 205 require('version.php');
 206 $CFG->target_release = $release;
 207
 208 $SESSION = new stdClass();
 209 $SESSION->lang = $CFG->lang;
 210
 211 $USER = new stdClass();
 212 $USER->id = 0;
 213
 214 $COURSE = new stdClass();
 215 $COURSE->id = 0;
 216
 217 $SITE = $COURSE;
 218 define('SITEID', 0);
 219
 220 $hint_dataroot = '';
 221 $hint_admindir = '';
 222 $hint_database = '';
 223
 224 // Are we in help mode?
 225 if (isset($_GET['help'])) {
 226     install_print_help_page($_GET['help']);
 227 }
 228
 229 //first time here? find out suitable dataroot
 230 if (is_null($CFG->dataroot)) {
 231     $CFG->dataroot = dirname(dirname(__FILE__)).DIRECTORY_SEPARATOR.'moodledata';
 232
 233     $i = 0; //safety check - dirname might return some unexpected results
 234     while(is_dataroot_insecure()) {
 235         $parrent = dirname($CFG->dataroot);
 236         $i++;
 237         if ($parrent == '/' or $parrent == '.' or preg_match('/^[a-z]:\\\?$/i', $parrent) or ($i > 100)) {
 238             $CFG->dataroot = ''; //can not find secure location for dataroot
 239             break;
 240         }
 241         $CFG->dataroot = dirname($parrent).DIRECTORY_SEPARATOR.'moodledata';
 242     }
 243     $config->dataroot = $CFG->dataroot;
 244     $config->stage    = INSTALL_WELCOME;
 245 }
 246
 247 // now let's do the stage work
 248 if ($config->stage < INSTALL_WELCOME) {
 249     $config->stage = INSTALL_WELCOME;
 250 }
 251 if ($config->stage > INSTALL_SAVE) {
 252     $config->stage = INSTALL_SAVE;
 253 }
 254
 255
 256
 257 if ($config->stage == INSTALL_SAVE) {
 258     $CFG->early_install_lang = false;
 259
 260     $database = moodle_database::get_driver_instance($config->dbtype, 'native');
 261     if (!$database->driver_installed()) {
 262         $config->stage = INSTALL_DATABASETYPE;
 263     } else {
 264         if (function_exists('distro_pre_create_db')) { // Hook for distros needing to do something before DB creation
 265             $distro = distro_pre_create_db($database, $config->dbhost, $config->dbuser, $config->dbpass, $config->dbname, $config->prefix, array('dbpersist'=>0, 'dbsocket'=>$config->dbsocket), $distro);
 266         }
 267         $hint_database = install_db_validate($database, $config->dbhost, $config->dbuser, $config->dbpass, $config->dbname, $config->prefix, array('dbpersist'=>0, 'dbsocket'=>$config->dbsocket));
 268
 269         if ($hint_database === '') {
 270             $configphp = install_generate_configphp($database, $CFG);
 271
 272             umask(0137);
 273             if (($fh = @fopen($configfile, 'w')) !== false) {
 274                 fwrite($fh, $configphp);
 275                 fclose($fh);
 276             }
 277
 278             if (file_exists($configfile)) {
 279                 // config created, let's continue!
 280                 redirect("$CFG->wwwroot/$config->admin/index.php?lang=$config->lang");
 281             }
 282
 283             install_print_header($config, 'config.php',
 284                                           get_string('configurationcompletehead', 'install'),
 285                                           get_string('configurationcompletesub', 'install').get_string('configfilenotwritten', 'install'));
 286             echo '<div class="configphp"><pre>';
 287             echo p($configphp);
 288             echo '</pre></div>';
 289
 290             install_print_footer($config);
 291             die;
 292
 293         } else {
 294             $config->stage = INSTALL_DATABASE;
 295         }
 296     }
 297 }
 298
 299
 300
 301 if ($config->stage == INSTALL_DOWNLOADLANG) {
 302     if (empty($CFG->dataroot)) {
 303         $config->stage = INSTALL_PATHS;
 304
 305     } else if (is_dataroot_insecure()) {
 306         $hint_dataroot = get_string('pathsunsecuredataroot', 'install');
 307         $config->stage = INSTALL_PATHS;
 308
 309     } else if (!file_exists($CFG->dataroot)) {
 310         $a = new stdClass();
 311         $a->parent = dirname($CFG->dataroot);
 312         $a->dataroot = $CFG->dataroot;
 313         if (!is_writable($a->parent)) {
 314             $hint_dataroot = get_string('pathsroparentdataroot', 'install', $a);
 315             $config->stage = INSTALL_PATHS;
 316         } else {
 317             if (!install_init_dataroot($CFG->dataroot, $CFG->directorypermissions)) {
 318                 $hint_dataroot = get_string('pathserrcreatedataroot', 'install', $a);
 319                 $config->stage = INSTALL_PATHS;
 320             }
 321         }
 322
 323     } else if (!install_init_dataroot($CFG->dataroot, $CFG->directorypermissions)) {
 324         $hint_dataroot = get_string('pathserrcreatedataroot', 'install', array('dataroot' => $CFG->dataroot));
 325         $config->stage = INSTALL_PATHS;
 326     }
 327
 328     if (empty($hint_dataroot) and !is_writable($CFG->dataroot)) {
 329         $hint_dataroot = get_string('pathsrodataroot', 'install');
 330         $config->stage = INSTALL_PATHS;
 331     }
 332
 333     if ($config->admin === '' or !file_exists($CFG->dirroot.'/'.$config->admin.'/environment.xml')) {
 334         $hint_admindir = get_string('pathswrongadmindir', 'install');
 335         $config->stage = INSTALL_PATHS;
 336     }
 337 }
 338
 339
 340
 341 if ($config->stage == INSTALL_DOWNLOADLANG) {
 342     // no need to download anything if en lang selected
 343     if ($CFG->lang == 'en') {
 344         $config->stage = INSTALL_DATABASETYPE;
 345     }
 346 }
 347
 348
 349
 350 if ($config->stage == INSTALL_DATABASETYPE) {
 351     // skip db selection if distro package supports only one db
 352     if (!empty($distro->dbtype)) {
 353         $config->stage = INSTALL_DATABASE;
 354     }
 355 }
 356
 357
 358 if ($config->stage == INSTALL_DOWNLOADLANG) {
 359     $downloaderror = '';
 360
 361     // download and install required lang packs, the lang dir has already been created in install_init_dataroot
 362     $installer = new lang_installer($CFG->lang);
 363     $results = $installer->run();
 364     foreach ($results as $langcode => $langstatus) {
 365         if ($langstatus === lang_installer::RESULT_DOWNLOADERROR) {
 366             $a       = new stdClass();
 367             $a->url  = $installer->lang_pack_url($langcode);
 368             $a->dest = $CFG->dataroot.'/lang';
 369             $downloaderror = get_string('remotedownloaderror', 'error', $a);
 370         }
 371     }
 372
 373     if ($downloaderror !== '') {
 374         install_print_header($config, get_string('language'), get_string('langdownloaderror', 'install', $CFG->lang), $downloaderror);
 375         install_print_footer($config);
 376         die;
 377     } else {
 378         if (empty($distro->dbtype)) {
 379             $config->stage = INSTALL_DATABASETYPE;
 380         } else {
 381             $config->stage = INSTALL_DATABASE;
 382         }
 383     }
 384
 385     // switch the string_manager instance to stop using install/lang/
 386     $CFG->early_install_lang = false;
 387     $CFG->langotherroot      = $CFG->dataroot.'/lang';
 388     $CFG->langlocalroot      = $CFG->dataroot.'/lang';
 389     get_string_manager(true);
 390 }
 391
 392
 393 if ($config->stage == INSTALL_DATABASE) {
 394     $CFG->early_install_lang = false;
 395
 396     $database = moodle_database::get_driver_instance($config->dbtype, 'native');
 397
 398     $sub = '<h3>'.$database->get_name().'</h3>'.$database->get_configuration_help();
 399
 400     install_print_header($config, get_string('database', 'install'), get_string('databasehead', 'install'), $sub);
 401
 402     $strdbhost   = get_string('databasehost', 'install');
 403     $strdbname   = get_string('databasename', 'install');
 404     $strdbuser   = get_string('databaseuser', 'install');
 405     $strdbpass   = get_string('databasepass', 'install');
 406     $strprefix   = get_string('dbprefix', 'install');
 407     $strdbsocket = get_string('databasesocket', 'install');
 408
 409     echo '<div class="userinput">';
 410
 411     $disabled = empty($distro->dbhost) ? '' : 'disabled="disabled';
 412     echo '<div class="formrow"><label for="id_dbhost" class="formlabel">'.$strdbhost.'</label>';
 413     echo '<input id="id_dbhost" name="dbhost" '.$disabled.' type="text" value="'.s($config->dbhost).'" size="50" class="forminput" />';
 414     echo '</div>';
 415
 416     echo '<div class="formrow"><label for="id_dbname" class="formlabel">'.$strdbname.'</label>';
 417     echo '<input id="id_dbname" name="dbname" type="text" value="'.s($config->dbname).'" size="50" class="forminput" />';
 418     echo '</div>';
 419
 420     $disabled = empty($distro->dbuser) ? '' : 'disabled="disabled';
 421     echo '<div class="formrow"><label for="id_dbuser" class="formlabel">'.$strdbuser.'</label>';
 422     echo '<input id="id_dbuser" name="dbuser" '.$disabled.' type="text" value="'.s($config->dbuser).'" size="50" class="forminput" />';
 423     echo '</div>';
 424
 425     echo '<div class="formrow"><label for="id_dbpass" class="formlabel">'.$strdbpass.'</label>';
 426     // no password field here, the password may be visible in config.php if we can not write it to disk
 427     echo '<input id="id_dbpass" name="dbpass" type="text" value="'.s($config->dbpass).'" size="50" class="forminput" />';
 428     echo '</div>';
 429
 430     echo '<div class="formrow"><label for="id_prefix" class="formlabel">'.$strprefix.'</label>';
 431     echo '<input id="id_prefix" name="prefix" type="text" value="'.s($config->prefix).'" size="10" class="forminput" />';
 432     echo '</div>';
 433
 434     if (!(stristr(PHP_OS, 'win') && !stristr(PHP_OS, 'darwin'))) {
 435         $checked = $config->dbsocket ? 'checked="checked' : '';
 436         echo '<div class="formrow"><label for="id_dbsocket" class="formlabel">'.$strdbsocket.'</label>';
 437         echo '<input type="hidden" value="0" name="dbsocket" />';
 438         echo '<input type="checkbox" id="id_dbsocket" value="1" name="dbsocket" '.$checked.' class="forminput" />';
 439         echo '</div>';
 440     }
 441
 442     echo '<div class="hint">'.$hint_database.'</div>';
 443     echo '</div>';
 444     install_print_footer($config);
 445     die;
 446 }
 447
 448
 449 if ($config->stage == INSTALL_DATABASETYPE) {
 450     $CFG->early_install_lang = false;
 451
 452     // Finally ask for DB type
 453     install_print_header($config, get_string('database', 'install'),
 454                                   get_string('databasetypehead', 'install'),
 455                                   get_string('databasetypesub', 'install'));
 456
 457     $databases = array('mysqli' => moodle_database::get_driver_instance('mysqli', 'native'),
 458                        'pgsql'  => moodle_database::get_driver_instance('pgsql',  'native'),
 459                        'oci'    => moodle_database::get_driver_instance('oci',    'native'),
 460                        'sqlsrv' => moodle_database::get_driver_instance('sqlsrv', 'native'), // MS SQL*Server PHP driver
 461                        'mssql'  => moodle_database::get_driver_instance('mssql',  'native'), // FreeTDS driver
 462                       );
 463
 464     echo '<div class="userinput">';
 465     echo '<div class="formrow"><label class="formlabel" for="dbtype">'.get_string('dbtype', 'install').'</label>';
 466     echo '<select id="dbtype" name="dbtype" class="forminput">';
 467     $disabled = array();
 468     $options = array();
 469     foreach ($databases as $type=>$database) {
 470         if ($database->driver_installed() !== true) {
 471             $disabled[$type] = $database;
 472             continue;
 473         }
 474         echo '<option value="'.s($type).'">'.$database->get_name().'</option>';
 475     }
 476     if ($disabled) {
 477         echo '<optgroup label="'.s(get_string('notavailable')).'">';
 478         foreach ($disabled as $type=>$database) {
 479             echo '<option value="'.s($type).'" class="notavailable">'.$database->get_name().'</option>';
 480         }
 481         echo '</optgroup>';
 482     }
 483     echo '</select></div>';
 484     echo '</div>';
 485
 486     install_print_footer($config);
 487     die;
 488 }
 489
 490
 491
 492 if ($config->stage == INSTALL_ENVIRONMENT or $config->stage == INSTALL_PATHS) {
 493     $version_fail = (version_compare(phpversion(), "5.3.2") < 0);
 494     $curl_fail    = ($lang !== 'en' and !extension_loaded('curl')); // needed for lang pack download
 495     $zip_fail     = ($lang !== 'en' and !extension_loaded('zip'));  // needed for lang pack download
 496
 497     if ($version_fail or $curl_fail or $zip_fail) {
 498         $config->stage = INSTALL_ENVIRONMENT;
 499
 500         install_print_header($config, get_string('environmenthead', 'install'),
 501                                       get_string('errorsinenvironment', 'install'),
 502                                       get_string('environmentsub2', 'install'));
 503
 504         echo '<div id="envresult"><dl>';
 505         if ($version_fail) {
 506             $a = (object)array('needed'=>'5.3.2', 'current'=>phpversion());
 507             echo '<dt>'.get_string('phpversion', 'install').'</dt><dd>'.get_string('environmentrequireversion', 'admin', $a).'</dd>';
 508         }
 509         if ($curl_fail) {
 510             echo '<dt>'.get_string('phpextension', 'install', 'cURL').'</dt><dd>'.get_string('environmentrequireinstall', 'admin').'</dd>';
 511         }
 512         if ($zip_fail) {
 513             echo '<dt>'.get_string('phpextension', 'install', 'Zip').'</dt><dd>'.get_string('environmentrequireinstall', 'admin').'</dd>';
 514         }
 515         echo '</dl></div>';
 516
 517         install_print_footer($config, true);
 518         die;
 519
 520     } else {
 521         $config->stage = INSTALL_PATHS;
 522     }
 523 }
 524
 525
 526
 527 if ($config->stage == INSTALL_PATHS) {
 528     $paths = array('wwwroot'  => get_string('wwwroot', 'install'),
 529                    'dirroot'  => get_string('dirroot', 'install'),
 530                    'dataroot' => get_string('dataroot', 'install'));
 531
 532     $sub = '<dl>';
 533     foreach ($paths as $path=>$name) {
 534         $sub .= '<dt>'.$name.'</dt><dd>'.get_string('pathssub'.$path, 'install').'</dd>';
 535     }
 536     if (!file_exists("$CFG->dirroot/admin/environment.xml")) {
 537         $sub .= '<dt>'.get_string('admindirname', 'install').'</dt><dd>'.get_string('pathssubadmindir', 'install').'</dd>';
 538     }
 539     $sub .= '</dl>';
 540
 541     install_print_header($config, get_string('paths', 'install'), get_string('pathshead', 'install'), $sub);
 542
 543     $strwwwroot      = get_string('wwwroot', 'install');
 544     $strdirroot      = get_string('dirroot', 'install');
 545     $strdataroot     = get_string('dataroot', 'install');
 546     $stradmindirname = get_string('admindirname', 'install');
 547
 548     echo '<div class="userinput">';
 549     echo '<div class="formrow"><label for="id_wwwroot" class="formlabel">'.$paths['wwwroot'].'</label>';
 550     echo '<input id="id_wwwroot" name="wwwroot" type="text" value="'.s($CFG->wwwroot).'" disabled="disabled" size="70" class="forminput" />';
 551     echo '</div>';
 552
 553     echo '<div class="formrow"><label for="id_dirroot" class="formlabel">'.$paths['dirroot'].'</label>';
 554     echo '<input id="id_dirroot" name="dirroot" type="text" value="'.s($CFG->dirroot).'" disabled="disabled" size="70"class="forminput" />';
 555     echo '</div>';
 556
 557     echo '<div class="formrow"><label for="id_dataroot" class="formlabel">'.$paths['dataroot'].'</label>';
 558     echo '<input id="id_dataroot" name="dataroot" type="text" value="'.s($config->dataroot).'" size="70" class="forminput" />';
 559     if ($hint_dataroot !== '') {
 560         echo '<div class="hint">'.$hint_dataroot.'</div>';
 561     }
 562     echo '</div>';
 563
 564
 565     if (!file_exists("$CFG->dirroot/admin/environment.xml")) {
 566         echo '<div class="formrow"><label for="id_admin" class="formlabel">'.$paths['admindir'].'</label>';
 567         echo '<input id="id_admin" name="admin" type="text" value="'.s($config->admin).'" size="10" class="forminput" />';
 568         if ($hint_admindir !== '') {
 569             echo '<div class="hint">'.$hint_admindir.'</div>';
 570         }
 571         echo '</div>';
 572     }
 573
 574     echo '</div>';
 575
 576     install_print_footer($config);
 577     die;
 578 }
 579
 580
 581
 582 $config->stage = INSTALL_WELCOME;
 583
 584 if ($distro) {
 585     ob_start();
 586     include('install/distribution.html');
 587     $sub = ob_get_clean();
 588
 589     install_print_header($config, get_string('language'),
 590                                   get_string('chooselanguagehead', 'install'),
 591                                   $sub);
 592
 593 } else {
 594     install_print_header($config, get_string('language'),
 595                                   get_string('chooselanguagehead', 'install'),
 596                                   get_string('chooselanguagesub', 'install'));
 597 }
 598
 599 $languages = get_string_manager()->get_list_of_translations();
 600 echo '<div class="userinput">';
 601 echo '<div class="formrow"><label class="formlabel" for="langselect">'.get_string('language').'</label>';
 602 echo '<select id="langselect" name="lang" class="forminput" onchange="this.form.submit()">';
 603 foreach ($languages as $name=>$value) {
 604     $selected = ($name == $CFG->lang) ? 'selected="selected"' : '';
 605     echo '<option value="'.s($name).'" '.$selected.'>'.$value.'</option>';
 606 }
 607 echo '</select></div>';
 608 echo '</div>';
 609
 610 install_print_footer($config);
 611 die;
 612