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 "Sorry, Moodle 2.0 requires PHP 5.2.8 or later (currently using version $phpversion).<br />";
  66     echo "Please upgrade your server software or install latest Moodle 1.9.x instead.";
  67     die;
  68 }
  69
  70 if (PHP_INT_SIZE > 4) {
  71     // most probably 64bit PHP - we need a lot more memory
  72     $minrequiredmemory = '70M';
  73 } else {
  74     // 32bit PHP
  75     $minrequiredmemory = '40M';
  76 }
  77 // increase or decrease available memory - we need to make sure moodle
  78 // installs even with low memory, otherwise developers would overlook
  79 // sudden increases of memory needs ;-)
  80 @ini_set('memory_limit', $minrequiredmemory);
  81
  82 /** Used by library scripts to check they are being called by Moodle */
  83 define('MOODLE_INTERNAL', true);
  84
  85 require dirname(__FILE__).'/lib/installlib.php';
  86
  87 // TODO: add lang detection here if empty $_REQUEST['lang']
  88
  89 // distro specific customisation
  90 $distro = null;
  91 if (file_exists('install/distrolib.php')) {
  92     require_once('install/distrolib.php');
  93     if (function_exists('distro_get_config')) {
  94         $distro = distro_get_config();
  95     }
  96 }
  97
  98 $config = new stdClass();
  99 $config->lang = $lang;
 100
 101 if (!empty($_POST)) {
 102     if (install_ini_get_bool('magic_quotes_gpc')) {
 103         $_POST = array_map('stripslashes', $_POST);
 104     }
 105
 106     $config->stage = (int)$_POST['stage'];
 107
 108     if (isset($_POST['previous'])) {
 109         $config->stage--;
 110         if (INSTALL_DATABASETYPE and !empty($distro->dbtype)) {
 111             $config->stage--;
 112         }
 113         if ($config->stage == INSTALL_ENVIRONMENT or $config->stage == INSTALL_DOWNLOADLANG) {
 114             $config->stage--;
 115         }
 116     } else if (isset($_POST['next'])) {
 117         $config->stage++;
 118     }
 119
 120     $config->dbtype   = trim($_POST['dbtype']);
 121     $config->dbhost   = trim($_POST['dbhost']);
 122     $config->dbuser   = trim($_POST['dbuser']);
 123     $config->dbpass   = trim($_POST['dbpass']);
 124     $config->dbname   = trim($_POST['dbname']);
 125     $config->prefix   = trim($_POST['prefix']);
 126     $config->dbsocket = (int)(!empty($_POST['dbsocket']));
 127
 128     $config->admin    = empty($_POST['admin']) ? 'admin' : trim($_POST['admin']);
 129
 130     $config->dataroot = trim($_POST['dataroot']);
 131
 132 } else {
 133     $config->stage    = INSTALL_WELCOME;
 134
 135     $config->dbtype   = empty($distro->dbtype) ? '' : $distro->dbtype; // let distro skip dbtype selection
 136     $config->dbhost   = empty($distro->dbhost) ? 'localhost' : $distro->dbhost; // let distros set dbhost
 137     $config->dbuser   = empty($distro->dbuser) ? '' : $distro->dbuser; // let distros set dbuser
 138     $config->dbpass   = '';
 139     $config->dbname   = 'moodle';
 140     $config->prefix   = 'mdl_';
 141     $config->dbsocket = 0;
 142
 143     $config->admin    = 'admin';
 144
 145     $config->dataroot = empty($distro->dataroot) ? null  : $distro->dataroot; // initialised later after including libs or by distro
 146 }
 147
 148 // Fake some settings so that we can use selected functions from moodlelib.php and weblib.php
 149 $CFG = new stdClass();
 150 $CFG->lang                 = $config->lang;
 151 $CFG->dirroot              = dirname(__FILE__);
 152 $CFG->libdir               = "$CFG->dirroot/lib";
 153 $CFG->wwwroot              = install_guess_wwwroot(); // can not be changed - ppl must use the real address when installing
 154 $CFG->httpswwwroot         = $CFG->wwwroot;
 155 $CFG->dataroot             = $config->dataroot;
 156 $CFG->admin                = $config->admin;
 157 $CFG->docroot              = 'http://docs.moodle.org';
 158 $CFG->langotherroot        = $CFG->dataroot.'/lang';
 159 $CFG->langlocalroot        = $CFG->dataroot.'/lang';
 160 $CFG->directorypermissions = 00777;
 161 $CFG->running_installer    = true;
 162 $CFG->early_install_lang   = true;
 163
 164 // Require all needed libs
 165 require_once($CFG->libdir.'/setuplib.php');
 166
 167 // we need to make sure we have enough memory to load all libraries
 168 $memlimit = @ini_get('memory_limit');
 169 if (!empty($memlimit) and $memlimit != -1) {
 170     if (get_real_size($memlimit) < get_real_size($minrequiredmemory)) {
 171         // do NOT localise - lang strings would not work here and we CAN not move it to later place
 172         echo "Sorry, Moodle 2.0 requires at least {$minrequiredmemory}B of PHP memory.<br />";
 173         echo "Please contact server administrator to fix PHP.ini memory settings.";
 174         die;
 175     }
 176 }
 177
 178 // Continue with lib loading
 179 require_once($CFG->libdir.'/textlib.class.php');
 180 require_once($CFG->libdir.'/weblib.php');
 181 require_once($CFG->libdir.'/outputlib.php');
 182 require_once($CFG->libdir.'/dmllib.php');
 183 require_once($CFG->libdir.'/moodlelib.php');
 184 require_once($CFG->libdir .'/pagelib.php');
 185 require_once($CFG->libdir.'/deprecatedlib.php');
 186 require_once($CFG->libdir.'/adminlib.php');
 187 require_once($CFG->libdir.'/environmentlib.php');
 188 require_once($CFG->libdir.'/componentlib.class.php');
 189
 190 //point pear include path to moodles lib/pear so that includes and requires will search there for files before anywhere else
 191 //the problem is that we need specific version of quickforms and hacked excel files :-(
 192 ini_set('include_path', $CFG->libdir.'/pear' . PATH_SEPARATOR . ini_get('include_path'));
 193 //point zend include path to moodles lib/zend so that includes and requires will search there for files before anywhere else
 194 ini_set('include_path', $CFG->libdir.'/zend' . PATH_SEPARATOR . ini_get('include_path'));
 195
 196 require('version.php');
 197 $CFG->target_release = $release;
 198
 199 $SESSION = new stdClass();
 200 $SESSION->lang = $CFG->lang;
 201
 202 $USER = new stdClass();
 203 $USER->id = 0;
 204
 205 $COURSE = new stdClass();
 206 $COURSE->id = 0;
 207
 208 $SITE = $COURSE;
 209 define('SITEID', 0);
 210
 211 $hint_dataroot = '';
 212 $hint_admindir = '';
 213 $hint_database = '';
 214
 215 // Are we in help mode?
 216 if (isset($_GET['help'])) {
 217     install_print_help_page($_GET['help']);
 218 }
 219
 220 // send css?
 221 if (isset($_GET['css'])) {
 222     install_css_styles();
 223 }
 224
 225 //first time here? find out suitable dataroot
 226 if (is_null($CFG->dataroot)) {
 227     $CFG->dataroot = dirname(dirname(__FILE__)).DIRECTORY_SEPARATOR.'moodledata';
 228
 229     $i = 0; //safety check - dirname might return some unexpected results
 230     while(is_dataroot_insecure()) {
 231         $parrent = dirname($CFG->dataroot);
 232         $i++;
 233         if ($parrent == '/' or $parrent == '.' or preg_match('/^[a-z]:\\\?$/i', $parrent) or ($i > 100)) {
 234             $CFG->dataroot = ''; //can not find secure location for dataroot
 235             break;
 236         }
 237         $CFG->dataroot = dirname($parrent).DIRECTORY_SEPARATOR.'moodledata';
 238     }
 239     $config->dataroot = $CFG->dataroot;
 240     $config->stage    = INSTALL_WELCOME;
 241 }
 242
 243 // now let's do the stage work
 244 if ($config->stage < INSTALL_WELCOME) {
 245     $config->stage = INSTALL_WELCOME;
 246 }
 247 if ($config->stage > INSTALL_SAVE) {
 248     $config->stage = INSTALL_SAVE;
 249 }
 250
 251
 252
 253 if ($config->stage == INSTALL_SAVE) {
 254     $CFG->early_install_lang = false;
 255
 256     $database = moodle_database::get_driver_instance($config->dbtype, 'native');
 257     if (!$database->driver_installed()) {
 258         $config->stage = INSTALL_DATABASETYPE;
 259     } else {
 260         if (function_exists('distro_pre_create_db')) { // Hook for distros needing to do something before DB creation
 261             $distro = distro_pre_create_db($database, $config->dbhost, $config->dbuser, $config->dbpass, $config->dbname, $config->prefix, array('dbpersist'=>0, 'dbsocket'=>$config->dbsocket), $distro);
 262         }
 263         $hint_database = install_db_validate($database, $config->dbhost, $config->dbuser, $config->dbpass, $config->dbname, $config->prefix, array('dbpersist'=>0, 'dbsocket'=>$config->dbsocket));
 264
 265         if ($hint_database === '') {
 266             $configphp = install_generate_configphp($database, $CFG);
 267
 268             umask(0137);
 269             if (($fh = @fopen($configfile, 'w')) !== false) {
 270                 fwrite($fh, $configphp);
 271                 fclose($fh);
 272             }
 273
 274             if (file_exists($configfile)) {
 275                 // config created, let's continue!
 276                 redirect("$CFG->wwwroot/$config->admin/index.php?lang=$config->lang");
 277             }
 278
 279             install_print_header($config, 'config.php',
 280                                           get_string('configurationcompletehead', 'install'),
 281                                           get_string('configurationcompletesub', 'install').get_string('configfilenotwritten', 'install'));
 282             echo '<div class="configphp"><pre>';
 283             echo p($configphp);
 284             echo '</pre></div>';
 285
 286             install_print_footer($config);
 287             die;
 288
 289         } else {
 290             $config->stage = INSTALL_DATABASE;
 291         }
 292     }
 293 }
 294
 295
 296
 297 if ($config->stage == INSTALL_DOWNLOADLANG) {
 298     if (empty($CFG->dataroot)) {
 299         $config->stage = INSTALL_PATHS;
 300
 301     } else if (is_dataroot_insecure()) {
 302         $hint_dataroot = get_string('pathsunsecuredataroot', 'install');
 303         $config->stage = INSTALL_PATHS;
 304
 305     } else if (!file_exists($CFG->dataroot)) {
 306         $a = new stdClass();
 307         $a->parent = dirname($CFG->dataroot);
 308         $a->dataroot = $CFG->dataroot;
 309         if (!is_writable($a->parent)) {
 310             $hint_dataroot = get_string('pathsroparentdataroot', 'install', $a);
 311             $config->stage = INSTALL_PATHS;
 312         } else {
 313             if (!install_init_dataroot($CFG->dataroot, $CFG->directorypermissions)) {
 314                 $hint_dataroot = get_string('pathserrcreatedataroot', 'install', $a);
 315                 $config->stage = INSTALL_PATHS;
 316             }
 317         }
 318
 319     } else if (!install_init_dataroot($CFG->dataroot, $CFG->directorypermissions)) {
 320         $hint_dataroot = get_string('pathserrcreatedataroot', 'install', array('dataroot' => $CFG->dataroot));
 321         $config->stage = INSTALL_PATHS;
 322     }
 323
 324     if (empty($hint_dataroot) and !is_writable($CFG->dataroot)) {
 325         $hint_dataroot = get_string('pathsrodataroot', 'install');
 326         $config->stage = INSTALL_PATHS;
 327     }
 328
 329     if ($config->admin === '' or !file_exists($CFG->dirroot.'/'.$config->admin.'/environment.xml')) {
 330         $hint_admindir = get_string('pathswrongadmindir', 'install');
 331         $config->stage = INSTALL_PATHS;
 332     }
 333 }
 334
 335
 336
 337 if ($config->stage == INSTALL_DOWNLOADLANG) {
 338     // no need to download anything if en lang selected
 339     if ($CFG->lang == 'en') {
 340         $config->stage = INSTALL_DATABASETYPE;
 341     }
 342 }
 343
 344
 345
 346 if ($config->stage == INSTALL_DATABASETYPE) {
 347     // skip db selection if distro package supports only one db
 348     if (!empty($distro->dbtype)) {
 349         $config->stage = INSTALL_DATABASE;
 350     }
 351 }
 352
 353
 354 if ($config->stage == INSTALL_DOWNLOADLANG) {
 355     $downloaderror = '';
 356
 357 // Download and install lang component, lang dir was already created in install_init_dataroot
 358     if ($cd = new component_installer('http://download.moodle.org', 'langpack/2.0', $CFG->lang.'.zip', 'languages.md5', 'lang')) {
 359         if ($cd->install() == COMPONENT_ERROR) {
 360             if ($cd->get_error() == 'remotedownloaderror') {
 361                 $a = new stdClass();
 362                 $a->url  = 'http://download.moodle.org/langpack/2.0/'.$config->lang.'.zip';
 363                 $a->dest = $CFG->dataroot.'/lang';
 364                 $downloaderror = get_string($cd->get_error(), 'error', $a);
 365             } else {
 366                 $downloaderror = get_string($cd->get_error(), 'error');
 367             }
 368         } else {
 369             // install parent lang if defined
 370             if ($parentlang = get_parent_language()) {
 371                 if ($cd = new component_installer('http://download.moodle.org', 'langpack/2.0', $parentlang.'.zip', 'languages.md5', 'lang')) {
 372                     $cd->install();
 373                 }
 374             }
 375         }
 376     }
 377
 378     if ($downloaderror !== '') {
 379         install_print_header($config, get_string('language'), get_string('langdownloaderror', 'install', $CFG->lang), $downloaderror);
 380         install_print_footer($config);
 381         die;
 382     } else {
 383         if (empty($distro->dbtype)) {
 384             $config->stage = INSTALL_DATABASETYPE;
 385         } else {
 386             $config->stage = INSTALL_DATABASE;
 387         }
 388     }
 389
 390     // switch the string_manager instance to stop using install/lang/
 391     $CFG->early_install_lang = false;
 392     $CFG->langotherroot      = $CFG->dataroot.'/lang';
 393     $CFG->langlocalroot      = $CFG->dataroot.'/lang';
 394     get_string_manager(true);
 395 }
 396
 397
 398 if ($config->stage == INSTALL_DATABASE) {
 399     $CFG->early_install_lang = false;
 400
 401     $database = moodle_database::get_driver_instance($config->dbtype, 'native');
 402
 403     $sub = '<h3>'.$database->get_name().'</h3>'.$database->get_configuration_help();
 404
 405     install_print_header($config, get_string('database', 'install'), get_string('databasehead', 'install'), $sub);
 406
 407     $strdbhost   = get_string('databasehost', 'install');
 408     $strdbname   = get_string('databasename', 'install');
 409     $strdbuser   = get_string('databaseuser', 'install');
 410     $strdbpass   = get_string('databasepass', 'install');
 411     $strprefix   = get_string('dbprefix', 'install');
 412     $strdbsocket = get_string('databasesocket', 'install');
 413
 414     echo '<div class="userinput">';
 415
 416     $disabled = empty($distro->dbhost) ? '' : 'disabled="disabled';
 417     echo '<div class="formrow"><label for="id_dbhost" class="formlabel">'.$strdbhost.'</label>';
 418     echo '<input id="id_dbhost" name="dbhost" '.$disabled.' type="text" value="'.s($config->dbhost).'" size="50" class="forminput" />';
 419     echo '</div>';
 420
 421     echo '<div class="formrow"><label for="id_dbname" class="formlabel">'.$strdbname.'</label>';
 422     echo '<input id="id_dbname" name="dbname" type="text" value="'.s($config->dbname).'" size="30" class="forminput" />';
 423     echo '</div>';
 424
 425     $disabled = empty($distro->dbuser) ? '' : 'disabled="disabled';
 426     echo '<div class="formrow"><label for="id_dbuser" class="formlabel">'.$strdbuser.'</label>';
 427     echo '<input id="id_dbuser" name="dbuser" '.$disabled.' type="text" value="'.s($config->dbuser).'" size="30" class="forminput" />';
 428     echo '</div>';
 429
 430     echo '<div class="formrow"><label for="id_dbpass" class="formlabel">'.$strdbpass.'</label>';
 431     // no password field here, the password may be visible in config.php if we can not write it to disk
 432     echo '<input id="id_dbpass" name="dbpass" type="text" value="'.s($config->dbpass).'" size="30" class="forminput" />';
 433     echo '</div>';
 434
 435     echo '<div class="formrow"><label for="id_prefix" class="formlabel">'.$strprefix.'</label>';
 436     echo '<input id="id_prefix" name="prefix" type="text" value="'.s($config->prefix).'" size="10" class="forminput" />';
 437     echo '</div>';
 438
 439     if (!(stristr(PHP_OS, 'win') && !stristr(PHP_OS, 'darwin'))) {
 440         $checked = $config->dbsocket ? 'checked="checked' : '';
 441         echo '<div class="formrow"><label for="id_dbsocket" class="formlabel">'.$strdbsocket.'</label>';
 442         echo '<input type="hidden" value="0" name="dbsocket" />';
 443         echo '<input type="checkbox" id="id_dbsocket" value="1" name="dbsocket" '.$checked.' class="forminput" />';
 444         echo '</div>';
 445     }
 446
 447     echo '<div class="hint">'.$hint_database.'</div>';
 448     echo '</div>';
 449     install_print_footer($config);
 450     die;
 451 }
 452
 453
 454 if ($config->stage == INSTALL_DATABASETYPE) {
 455     $CFG->early_install_lang = false;
 456
 457     // Finally ask for DB type
 458     install_print_header($config, get_string('database', 'install'),
 459                                   get_string('databasetypehead', 'install'),
 460                                   get_string('databasetypesub', 'install'));
 461
 462     $databases = array('mysqli' => moodle_database::get_driver_instance('mysqli', 'native'),
 463                        'pgsql'  => moodle_database::get_driver_instance('pgsql',  'native'),
 464                        'oci'    => moodle_database::get_driver_instance('oci',    'native'),
 465                        'sqlsrv' => moodle_database::get_driver_instance('sqlsrv', 'native'), // MS SQL*Server PHP driver
 466                        'mssql'  => moodle_database::get_driver_instance('mssql',  'native'), // FreeTDS driver
 467                       );
 468
 469     echo '<div class="userinput">';
 470     echo '<div class="formrow"><label class="formlabel" for="dbtype">'.get_string('dbtype', 'install').'</label>';
 471     echo '<select id="dbtype" name="dbtype" class="forminput">';
 472     $disabled = array();
 473     $options = array();
 474     foreach ($databases as $type=>$database) {
 475         if ($database->driver_installed() !== true) {
 476             $disabled[$type] = $database;
 477             continue;
 478         }
 479         echo '<option value="'.s($type).'">'.$database->get_name().'</option>';
 480     }
 481     if ($disabled) {
 482         echo '<optgroup label="'.s(get_string('notavailable')).'">';
 483         foreach ($disabled as $type=>$database) {
 484             echo '<option value="'.s($type).'" class="notavailable">'.$database->get_name().'</option>';
 485         }
 486         echo '</optgroup>';
 487     }
 488     echo '</select></div>';
 489     echo '</div>';
 490
 491     install_print_footer($config);
 492     die;
 493 }
 494
 495
 496
 497 if ($config->stage == INSTALL_ENVIRONMENT or $config->stage == INSTALL_PATHS) {
 498     $version_fail = (version_compare(phpversion(), "5.2.8") < 0);
 499     $curl_fail    = ($lang !== 'en' and !extension_loaded('curl')); // needed for lang pack download
 500     $zip_fail     = ($lang !== 'en' and !extension_loaded('zip'));  // needed for lang pack download
 501
 502     if ($version_fail or $curl_fail or $zip_fail) {
 503         $config->stage = INSTALL_ENVIRONMENT;
 504
 505         install_print_header($config, get_string('environmenthead', 'install'),
 506                                       get_string('errorsinenvironment', 'install'),
 507                                       get_string('environmentsub2', 'install'));
 508
 509         echo '<div id="envresult"><dl>';
 510         if ($version_fail) {
 511             $a = (object)array('needed'=>'5.2.8', 'current'=>phpversion());
 512             echo '<dt>'.get_string('phpversion', 'install').'</dt><dd>'.get_string('environmentrequireversion', 'admin', $a).'</dd>';
 513         }
 514         if ($curl_fail) {
 515             echo '<dt>'.get_string('phpextension', 'install', 'cURL').'</dt><dd>'.get_string('environmentrequireinstall', 'admin').'</dd>';
 516         }
 517         if ($zip_fail) {
 518             echo '<dt>'.get_string('phpextension', 'install', 'Zip').'</dt><dd>'.get_string('environmentrequireinstall', 'admin').'</dd>';
 519         }
 520         echo '</dl></div>';
 521
 522         install_print_footer($config, true);
 523         die;
 524
 525     } else {
 526         $config->stage = INSTALL_PATHS;
 527     }
 528 }
 529
 530
 531
 532 if ($config->stage == INSTALL_PATHS) {
 533     $paths = array('wwwroot'  => get_string('wwwroot', 'install'),
 534                    'dirroot'  => get_string('dirroot', 'install'),
 535                    'dataroot' => get_string('dataroot', 'install'));
 536
 537     $sub = '<dl>';
 538     foreach ($paths as $path=>$name) {
 539         $sub .= '<dt>'.$name.'</dt><dd>'.get_string('pathssub'.$path, 'install').'</dd>';
 540     }
 541     if (!file_exists("$CFG->dirroot/admin/environment.xml")) {
 542         $sub .= '<dt>'.get_string('admindirname', 'install').'</dt><dd>'.get_string('pathssubadmindir', 'install').'</dd>';
 543     }
 544     $sub .= '</dl>';
 545
 546     install_print_header($config, get_string('paths', 'install'), get_string('pathshead', 'install'), $sub);
 547
 548     $strwwwroot      = get_string('wwwroot', 'install');
 549     $strdirroot      = get_string('dirroot', 'install');
 550     $strdataroot     = get_string('dataroot', 'install');
 551     $stradmindirname = get_string('admindirname', 'install');
 552
 553     echo '<div class="userinput">';
 554     echo '<div class="formrow"><label for="id_wwwroot" class="formlabel">'.$paths['wwwroot'].'</label>';
 555     echo '<input id="id_wwwroot" name="wwwroot" type="text" value="'.s($CFG->wwwroot).'" disabled="disabled" size="70" class="forminput" />';
 556     echo '</div>';
 557
 558     echo '<div class="formrow"><label for="id_dirroot" class="formlabel">'.$paths['dirroot'].'</label>';
 559     echo '<input id="id_dirroot" name="dirroot" type="text" value="'.s($CFG->dirroot).'" disabled="disabled" size="70"class="forminput" />';
 560     echo '</div>';
 561
 562     echo '<div class="formrow"><label for="id_dataroot" class="formlabel">'.$paths['dataroot'].'</label>';
 563     echo '<input id="id_dataroot" name="dataroot" type="text" value="'.s($config->dataroot).'" size="70" class="forminput" />';
 564     if ($hint_dataroot !== '') {
 565         echo '<div class="hint">'.$hint_dataroot.'</div>';
 566     }
 567     echo '</div>';
 568
 569
 570     if (!file_exists("$CFG->dirroot/admin/environment.xml")) {
 571         echo '<div class="formrow"><label for="id_admin" class="formlabel">'.$paths['admindir'].'</label>';
 572         echo '<input id="id_admin" name="admin" type="text" value="'.s($config->admin).'" size="10" class="forminput" />';
 573         if ($hint_admindir !== '') {
 574             echo '<div class="hint">'.$hint_admindir.'</div>';
 575         }
 576         echo '</div>';
 577     }
 578
 579     echo '</div>';
 580
 581     install_print_footer($config);
 582     die;
 583 }
 584
 585
 586
 587 $config->stage = INSTALL_WELCOME;
 588
 589 if ($distro) {
 590     ob_start();
 591     include('install/distribution.html');
 592     $sub = ob_get_clean();
 593
 594     install_print_header($config, get_string('language'),
 595                                   get_string('chooselanguagehead', 'install'),
 596                                   $sub);
 597
 598 } else {
 599     install_print_header($config, get_string('language'),
 600                                   get_string('chooselanguagehead', 'install'),
 601                                   get_string('chooselanguagesub', 'install'));
 602 }
 603
 604 $languages = get_string_manager()->get_list_of_translations();
 605 echo '<div class="userinput">';
 606 echo '<div class="formrow"><label class="formlabel" for="langselect">'.get_string('language').'</label>';
 607 echo '<select id="langselect" name="lang" class="forminput" onchange="this.form.submit()">';
 608 foreach ($languages as $name=>$value) {
 609     $selected = ($name == $CFG->lang) ? 'selected="selected"' : '';
 610     echo '<option value="'.s($name).'" '.$selected.'>'.$value.'</option>';
 611 }
 612 echo '</select></div>';
 613 echo '</div>';
 614
 615 install_print_footer($config);
 616 die;
 617