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
  50 // Servers should define a default timezone in php.ini, but if they don't then make sure something is defined.
  51 // This is a quick hack.  Ideally we should ask the admin for a value.  See MDL-22625 for more on this.
  52 if (function_exists('date_default_timezone_set') and function_exists('date_default_timezone_get')) {
  53     @date_default_timezone_set(@date_default_timezone_get());
  54 }
  55
  56 // make sure PHP errors are displayed - helps with diagnosing of problems
  57 @error_reporting(E_ALL);
  58 @ini_set('display_errors', '1');
  59
  60 // Check that PHP is of a sufficient version.
  61 if (version_compare(phpversion(), '5.3.3') < 0) {
  62     $phpversion = phpversion();
  63     // do NOT localise - lang strings would not work here and we CAN not move it after installib
  64     echo "Moodle 2.5 or later requires at least PHP 5.3.3 (currently using version $phpversion).<br />";
  65     echo "Please upgrade your server software or install older Moodle version.";
  66     die;
  67 }
  68
  69 // make sure iconv is available and actually works
  70 if (!function_exists('iconv')) {
  71     // this should not happen, this must be very borked install
  72     echo 'Moodle requires the iconv PHP extension. Please install or enable the iconv extension.';
  73     die();
  74 }
  75
  76 if (PHP_INT_SIZE > 4) {
  77     // most probably 64bit PHP - we need a lot more memory
  78     $minrequiredmemory = '70M';
  79 } else {
  80     // 32bit PHP
  81     $minrequiredmemory = '40M';
  82 }
  83 // increase or decrease available memory - we need to make sure moodle
  84 // installs even with low memory, otherwise developers would overlook
  85 // sudden increases of memory needs ;-)
  86 @ini_set('memory_limit', $minrequiredmemory);
  87
  88 /** Used by library scripts to check they are being called by Moodle */
  89 define('MOODLE_INTERNAL', true);
  90
  91 require dirname(__FILE__).'/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     if (install_ini_get_bool('magic_quotes_gpc')) {
 109         $_POST = array_map('stripslashes', $_POST);
 110     }
 111
 112     $config->stage = (int)$_POST['stage'];
 113
 114     if (isset($_POST['previous'])) {
 115         $config->stage--;
 116         if (INSTALL_DATABASETYPE and !empty($distro->dbtype)) {
 117             $config->stage--;
 118         }
 119         if ($config->stage == INSTALL_ENVIRONMENT or $config->stage == INSTALL_DOWNLOADLANG) {
 120             $config->stage--;
 121         }
 122     } else if (isset($_POST['next'])) {
 123         $config->stage++;
 124     }
 125
 126     $config->dbtype   = trim($_POST['dbtype']);
 127     $config->dbhost   = trim($_POST['dbhost']);
 128     $config->dbuser   = trim($_POST['dbuser']);
 129     $config->dbpass   = trim($_POST['dbpass']);
 130     $config->dbname   = trim($_POST['dbname']);
 131     $config->prefix   = trim($_POST['prefix']);
 132     $config->dbsocket = (int)(!empty($_POST['dbsocket']));
 133
 134     $config->admin    = empty($_POST['admin']) ? 'admin' : trim($_POST['admin']);
 135
 136     $config->dataroot = trim($_POST['dataroot']);
 137
 138 } else {
 139     $config->stage    = INSTALL_WELCOME;
 140
 141     $config->dbtype   = empty($distro->dbtype) ? '' : $distro->dbtype; // let distro skip dbtype selection
 142     $config->dbhost   = empty($distro->dbhost) ? 'localhost' : $distro->dbhost; // let distros set dbhost
 143     $config->dbuser   = empty($distro->dbuser) ? '' : $distro->dbuser; // let distros set dbuser
 144     $config->dbpass   = '';
 145     $config->dbname   = 'moodle';
 146     $config->prefix   = 'mdl_';
 147     $config->dbsocket = 0;
 148
 149     $config->admin    = 'admin';
 150
 151     $config->dataroot = empty($distro->dataroot) ? null  : $distro->dataroot; // initialised later after including libs or by distro
 152 }
 153
 154 // Fake some settings so that we can use selected functions from moodlelib.php, weblib.php and filelib.php.
 155 $CFG = new stdClass();
 156 $CFG->lang                 = $config->lang;
 157 $CFG->dirroot              = dirname(__FILE__);
 158 $CFG->libdir               = "$CFG->dirroot/lib";
 159 $CFG->wwwroot              = install_guess_wwwroot(); // can not be changed - ppl must use the real address when installing
 160 $CFG->httpswwwroot         = $CFG->wwwroot;
 161 $CFG->dataroot             = $config->dataroot;
 162 $CFG->tempdir              = $CFG->dataroot.'/temp';
 163 $CFG->cachedir             = $CFG->dataroot.'/cache';
 164 $CFG->admin                = $config->admin;
 165 $CFG->docroot              = 'http://docs.moodle.org';
 166 $CFG->langotherroot        = $CFG->dataroot.'/lang';
 167 $CFG->langlocalroot        = $CFG->dataroot.'/lang';
 168 $CFG->directorypermissions = isset($distro->directorypermissions) ? $distro->directorypermissions : 00777; // let distros set dir permissions
 169 $CFG->running_installer    = true;
 170 $CFG->early_install_lang   = true;
 171 $CFG->ostype               = (stristr(PHP_OS, 'win') && !stristr(PHP_OS, 'darwin')) ? 'WINDOWS' : 'UNIX';
 172
 173 // Require all needed libs
 174 require_once($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 require_once($CFG->dirroot.'/cache/lib.php');
 199
 200 //point pear include path to moodles lib/pear so that includes and requires will search there for files before anywhere else
 201 //the problem is that we need specific version of quickforms and hacked excel files :-(
 202 ini_set('include_path', $CFG->libdir.'/pear' . PATH_SEPARATOR . ini_get('include_path'));
 203 //point zend include path to moodles lib/zend so that includes and requires will search there for files before anywhere else
 204 ini_set('include_path', $CFG->libdir.'/zend' . PATH_SEPARATOR . ini_get('include_path'));
 205
 206 require('version.php');
 207 $CFG->target_release = $release;
 208
 209 $SESSION = new stdClass();
 210 $SESSION->lang = $CFG->lang;
 211
 212 $USER = new stdClass();
 213 $USER->id = 0;
 214
 215 $COURSE = new stdClass();
 216 $COURSE->id = 0;
 217
 218 $SITE = $COURSE;
 219 define('SITEID', 0);
 220
 221 $hint_dataroot = '';
 222 $hint_admindir = '';
 223 $hint_database = '';
 224
 225 // Are we in help mode?
 226 if (isset($_GET['help'])) {
 227     install_print_help_page($_GET['help']);
 228 }
 229
 230 //first time here? find out suitable dataroot
 231 if (is_null($CFG->dataroot)) {
 232     $CFG->dataroot = dirname(dirname(__FILE__)).DIRECTORY_SEPARATOR.'moodledata';
 233
 234     $i = 0; //safety check - dirname might return some unexpected results
 235     while(is_dataroot_insecure()) {
 236         $parrent = dirname($CFG->dataroot);
 237         $i++;
 238         if ($parrent == '/' or $parrent == '.' or preg_match('/^[a-z]:\\\?$/i', $parrent) or ($i > 100)) {
 239             $CFG->dataroot = ''; //can not find secure location for dataroot
 240             break;
 241         }
 242         $CFG->dataroot = dirname($parrent).DIRECTORY_SEPARATOR.'moodledata';
 243     }
 244     $config->dataroot = $CFG->dataroot;
 245     $config->stage    = INSTALL_WELCOME;
 246 }
 247
 248 // now let's do the stage work
 249 if ($config->stage < INSTALL_WELCOME) {
 250     $config->stage = INSTALL_WELCOME;
 251 }
 252 if ($config->stage > INSTALL_SAVE) {
 253     $config->stage = INSTALL_SAVE;
 254 }
 255
 256
 257
 258 if ($config->stage == INSTALL_SAVE) {
 259     $CFG->early_install_lang = false;
 260
 261     $database = moodle_database::get_driver_instance($config->dbtype, 'native');
 262     if (!$database->driver_installed()) {
 263         $config->stage = INSTALL_DATABASETYPE;
 264     } else {
 265         if (function_exists('distro_pre_create_db')) { // Hook for distros needing to do something before DB creation
 266             $distro = distro_pre_create_db($database, $config->dbhost, $config->dbuser, $config->dbpass, $config->dbname, $config->prefix, array('dbpersist'=>0, 'dbsocket'=>$config->dbsocket), $distro);
 267         }
 268         $hint_database = install_db_validate($database, $config->dbhost, $config->dbuser, $config->dbpass, $config->dbname, $config->prefix, array('dbpersist'=>0, 'dbsocket'=>$config->dbsocket));
 269
 270         if ($hint_database === '') {
 271             $configphp = install_generate_configphp($database, $CFG);
 272
 273             umask(0137);
 274             if (($fh = @fopen($configfile, 'w')) !== false) {
 275                 fwrite($fh, $configphp);
 276                 fclose($fh);
 277             }
 278
 279             if (file_exists($configfile)) {
 280                 // config created, let's continue!
 281                 redirect("$CFG->wwwroot/$config->admin/index.php?lang=$config->lang");
 282             }
 283
 284             install_print_header($config, 'config.php',
 285                                           get_string('configurationcompletehead', 'install'),
 286                                           get_string('configurationcompletesub', 'install').get_string('configfilenotwritten', 'install'));
 287             echo '<div class="configphp"><pre>';
 288             echo p($configphp);
 289             echo '</pre></div>';
 290
 291             install_print_footer($config);
 292             die;
 293
 294         } else {
 295             $config->stage = INSTALL_DATABASE;
 296         }
 297     }
 298 }
 299
 300
 301
 302 if ($config->stage == INSTALL_DOWNLOADLANG) {
 303     if (empty($CFG->dataroot)) {
 304         $config->stage = INSTALL_PATHS;
 305
 306     } else if (is_dataroot_insecure()) {
 307         $hint_dataroot = get_string('pathsunsecuredataroot', 'install');
 308         $config->stage = INSTALL_PATHS;
 309
 310     } else if (!file_exists($CFG->dataroot)) {
 311         $a = new stdClass();
 312         $a->parent = dirname($CFG->dataroot);
 313         $a->dataroot = $CFG->dataroot;
 314         if (!is_writable($a->parent)) {
 315             $hint_dataroot = get_string('pathsroparentdataroot', 'install', $a);
 316             $config->stage = INSTALL_PATHS;
 317         } else {
 318             if (!install_init_dataroot($CFG->dataroot, $CFG->directorypermissions)) {
 319                 $hint_dataroot = get_string('pathserrcreatedataroot', 'install', $a);
 320                 $config->stage = INSTALL_PATHS;
 321             }
 322         }
 323
 324     } else if (!install_init_dataroot($CFG->dataroot, $CFG->directorypermissions)) {
 325         $hint_dataroot = get_string('pathserrcreatedataroot', 'install', array('dataroot' => $CFG->dataroot));
 326         $config->stage = INSTALL_PATHS;
 327     }
 328
 329     if (empty($hint_dataroot) and !is_writable($CFG->dataroot)) {
 330         $hint_dataroot = get_string('pathsrodataroot', 'install');
 331         $config->stage = INSTALL_PATHS;
 332     }
 333
 334     if ($config->admin === '' or !file_exists($CFG->dirroot.'/'.$config->admin.'/environment.xml')) {
 335         $hint_admindir = get_string('pathswrongadmindir', 'install');
 336         $config->stage = INSTALL_PATHS;
 337     }
 338 }
 339
 340
 341
 342 if ($config->stage == INSTALL_DOWNLOADLANG) {
 343     // no need to download anything if en lang selected
 344     if ($CFG->lang == 'en') {
 345         $config->stage = INSTALL_DATABASETYPE;
 346     }
 347 }
 348
 349
 350
 351 if ($config->stage == INSTALL_DATABASETYPE) {
 352     // skip db selection if distro package supports only one db
 353     if (!empty($distro->dbtype)) {
 354         $config->stage = INSTALL_DATABASE;
 355     }
 356 }
 357
 358
 359 if ($config->stage == INSTALL_DOWNLOADLANG) {
 360     $downloaderror = '';
 361
 362     // download and install required lang packs, the lang dir has already been created in install_init_dataroot
 363     $installer = new lang_installer($CFG->lang);
 364     $results = $installer->run();
 365     foreach ($results as $langcode => $langstatus) {
 366         if ($langstatus === lang_installer::RESULT_DOWNLOADERROR) {
 367             $a       = new stdClass();
 368             $a->url  = $installer->lang_pack_url($langcode);
 369             $a->dest = $CFG->dataroot.'/lang';
 370             $downloaderror = get_string('remotedownloaderror', 'error', $a);
 371         }
 372     }
 373
 374     if ($downloaderror !== '') {
 375         install_print_header($config, get_string('language'), get_string('langdownloaderror', 'install', $CFG->lang), $downloaderror);
 376         install_print_footer($config);
 377         die;
 378     } else {
 379         if (empty($distro->dbtype)) {
 380             $config->stage = INSTALL_DATABASETYPE;
 381         } else {
 382             $config->stage = INSTALL_DATABASE;
 383         }
 384     }
 385
 386     // switch the string_manager instance to stop using install/lang/
 387     $CFG->early_install_lang = false;
 388     $CFG->langotherroot      = $CFG->dataroot.'/lang';
 389     $CFG->langlocalroot      = $CFG->dataroot.'/lang';
 390     get_string_manager(true);
 391 }
 392
 393
 394 if ($config->stage == INSTALL_DATABASE) {
 395     $CFG->early_install_lang = false;
 396
 397     $database = moodle_database::get_driver_instance($config->dbtype, 'native');
 398
 399     $sub = '<h3>'.$database->get_name().'</h3>'.$database->get_configuration_help();
 400
 401     install_print_header($config, get_string('database', 'install'), get_string('databasehead', 'install'), $sub);
 402
 403     $strdbhost   = get_string('databasehost', 'install');
 404     $strdbname   = get_string('databasename', 'install');
 405     $strdbuser   = get_string('databaseuser', 'install');
 406     $strdbpass   = get_string('databasepass', 'install');
 407     $strprefix   = get_string('dbprefix', 'install');
 408     $strdbsocket = get_string('databasesocket', 'install');
 409
 410     echo '<div class="userinput">';
 411
 412     $disabled = empty($distro->dbhost) ? '' : 'disabled="disabled';
 413     echo '<div class="formrow"><label for="id_dbhost" class="formlabel">'.$strdbhost.'</label>';
 414     echo '<input id="id_dbhost" name="dbhost" '.$disabled.' type="text" value="'.s($config->dbhost).'" size="50" class="forminput" />';
 415     echo '</div>';
 416
 417     echo '<div class="formrow"><label for="id_dbname" class="formlabel">'.$strdbname.'</label>';
 418     echo '<input id="id_dbname" name="dbname" type="text" value="'.s($config->dbname).'" size="50" class="forminput" />';
 419     echo '</div>';
 420
 421     $disabled = empty($distro->dbuser) ? '' : 'disabled="disabled';
 422     echo '<div class="formrow"><label for="id_dbuser" class="formlabel">'.$strdbuser.'</label>';
 423     echo '<input id="id_dbuser" name="dbuser" '.$disabled.' type="text" value="'.s($config->dbuser).'" size="50" class="forminput" />';
 424     echo '</div>';
 425
 426     echo '<div class="formrow"><label for="id_dbpass" class="formlabel">'.$strdbpass.'</label>';
 427     // no password field here, the password may be visible in config.php if we can not write it to disk
 428     echo '<input id="id_dbpass" name="dbpass" type="text" value="'.s($config->dbpass).'" size="50" class="forminput" />';
 429     echo '</div>';
 430
 431     echo '<div class="formrow"><label for="id_prefix" class="formlabel">'.$strprefix.'</label>';
 432     echo '<input id="id_prefix" name="prefix" type="text" value="'.s($config->prefix).'" size="10" class="forminput" />';
 433     echo '</div>';
 434
 435     if (!(stristr(PHP_OS, 'win') && !stristr(PHP_OS, 'darwin'))) {
 436         $checked = $config->dbsocket ? 'checked="checked' : '';
 437         echo '<div class="formrow"><label for="id_dbsocket" class="formlabel">'.$strdbsocket.'</label>';
 438         echo '<input type="hidden" value="0" name="dbsocket" />';
 439         echo '<input type="checkbox" id="id_dbsocket" value="1" name="dbsocket" '.$checked.' class="forminput" />';
 440         echo '</div>';
 441     }
 442
 443     echo '<div class="hint">'.$hint_database.'</div>';
 444     echo '</div>';
 445     install_print_footer($config);
 446     die;
 447 }
 448
 449
 450 if ($config->stage == INSTALL_DATABASETYPE) {
 451     $CFG->early_install_lang = false;
 452
 453     // Finally ask for DB type
 454     install_print_header($config, get_string('database', 'install'),
 455                                   get_string('databasetypehead', 'install'),
 456                                   get_string('databasetypesub', 'install'));
 457
 458     $databases = array('mysqli' => moodle_database::get_driver_instance('mysqli', 'native'),
 459                        'pgsql'  => moodle_database::get_driver_instance('pgsql',  'native'),
 460                        'oci'    => moodle_database::get_driver_instance('oci',    'native'),
 461                        'sqlsrv' => moodle_database::get_driver_instance('sqlsrv', 'native'), // MS SQL*Server PHP driver
 462                        'mssql'  => moodle_database::get_driver_instance('mssql',  'native'), // FreeTDS driver
 463                       );
 464
 465     echo '<div class="userinput">';
 466     echo '<div class="formrow"><label class="formlabel" for="dbtype">'.get_string('dbtype', 'install').'</label>';
 467     echo '<select id="dbtype" name="dbtype" class="forminput">';
 468     $disabled = array();
 469     $options = array();
 470     foreach ($databases as $type=>$database) {
 471         if ($database->driver_installed() !== true) {
 472             $disabled[$type] = $database;
 473             continue;
 474         }
 475         echo '<option value="'.s($type).'">'.$database->get_name().'</option>';
 476     }
 477     if ($disabled) {
 478         echo '<optgroup label="'.s(get_string('notavailable')).'">';
 479         foreach ($disabled as $type=>$database) {
 480             echo '<option value="'.s($type).'" class="notavailable">'.$database->get_name().'</option>';
 481         }
 482         echo '</optgroup>';
 483     }
 484     echo '</select></div>';
 485     echo '</div>';
 486
 487     install_print_footer($config);
 488     die;
 489 }
 490
 491
 492
 493 if ($config->stage == INSTALL_ENVIRONMENT or $config->stage == INSTALL_PATHS) {
 494     $version_fail = (version_compare(phpversion(), "5.3.3") < 0);
 495     $curl_fail    = ($lang !== 'en' and !extension_loaded('curl')); // needed for lang pack download
 496     $zip_fail     = ($lang !== 'en' and !extension_loaded('zip'));  // needed for lang pack download
 497
 498     if ($version_fail or $curl_fail or $zip_fail) {
 499         $config->stage = INSTALL_ENVIRONMENT;
 500
 501         install_print_header($config, get_string('environmenthead', 'install'),
 502                                       get_string('errorsinenvironment', 'install'),
 503                                       get_string('environmentsub2', 'install'));
 504
 505         echo '<div id="envresult"><dl>';
 506         if ($version_fail) {
 507             $a = (object)array('needed'=>'5.3.3', 'current'=>phpversion());
 508             echo '<dt>'.get_string('phpversion', 'install').'</dt><dd>'.get_string('environmentrequireversion', 'admin', $a).'</dd>';
 509         }
 510         if ($curl_fail) {
 511             echo '<dt>'.get_string('phpextension', 'install', 'cURL').'</dt><dd>'.get_string('environmentrequireinstall', 'admin').'</dd>';
 512         }
 513         if ($zip_fail) {
 514             echo '<dt>'.get_string('phpextension', 'install', 'Zip').'</dt><dd>'.get_string('environmentrequireinstall', 'admin').'</dd>';
 515         }
 516         echo '</dl></div>';
 517
 518         install_print_footer($config, true);
 519         die;
 520
 521     } else {
 522         $config->stage = INSTALL_PATHS;
 523     }
 524 }
 525
 526
 527
 528 if ($config->stage == INSTALL_PATHS) {
 529     $paths = array('wwwroot'  => get_string('wwwroot', 'install'),
 530                    'dirroot'  => get_string('dirroot', 'install'),
 531                    'dataroot' => get_string('dataroot', 'install'));
 532
 533     $sub = '<dl>';
 534     foreach ($paths as $path=>$name) {
 535         $sub .= '<dt>'.$name.'</dt><dd>'.get_string('pathssub'.$path, 'install').'</dd>';
 536     }
 537     if (!file_exists("$CFG->dirroot/admin/environment.xml")) {
 538         $sub .= '<dt>'.get_string('admindirname', 'install').'</dt><dd>'.get_string('pathssubadmindir', 'install').'</dd>';
 539     }
 540     $sub .= '</dl>';
 541
 542     install_print_header($config, get_string('paths', 'install'), get_string('pathshead', 'install'), $sub);
 543
 544     $strwwwroot      = get_string('wwwroot', 'install');
 545     $strdirroot      = get_string('dirroot', 'install');
 546     $strdataroot     = get_string('dataroot', 'install');
 547     $stradmindirname = get_string('admindirname', 'install');
 548
 549     echo '<div class="userinput">';
 550     echo '<div class="formrow"><label for="id_wwwroot" class="formlabel">'.$paths['wwwroot'].'</label>';
 551     echo '<input id="id_wwwroot" name="wwwroot" type="text" value="'.s($CFG->wwwroot).'" disabled="disabled" size="70" class="forminput" />';
 552     echo '</div>';
 553
 554     echo '<div class="formrow"><label for="id_dirroot" class="formlabel">'.$paths['dirroot'].'</label>';
 555     echo '<input id="id_dirroot" name="dirroot" type="text" value="'.s($CFG->dirroot).'" disabled="disabled" size="70"class="forminput" />';
 556     echo '</div>';
 557
 558     echo '<div class="formrow"><label for="id_dataroot" class="formlabel">'.$paths['dataroot'].'</label>';
 559     echo '<input id="id_dataroot" name="dataroot" type="text" value="'.s($config->dataroot).'" size="70" class="forminput" />';
 560     if ($hint_dataroot !== '') {
 561         echo '<div class="hint">'.$hint_dataroot.'</div>';
 562     }
 563     echo '</div>';
 564
 565
 566     if (!file_exists("$CFG->dirroot/admin/environment.xml")) {
 567         echo '<div class="formrow"><label for="id_admin" class="formlabel">'.$paths['admindir'].'</label>';
 568         echo '<input id="id_admin" name="admin" type="text" value="'.s($config->admin).'" size="10" class="forminput" />';
 569         if ($hint_admindir !== '') {
 570             echo '<div class="hint">'.$hint_admindir.'</div>';
 571         }
 572         echo '</div>';
 573     }
 574
 575     echo '</div>';
 576
 577     install_print_footer($config);
 578     die;
 579 }
 580
 581
 582
 583 $config->stage = INSTALL_WELCOME;
 584
 585 if ($distro) {
 586     ob_start();
 587     include('install/distribution.html');
 588     $sub = ob_get_clean();
 589
 590     install_print_header($config, get_string('language'),
 591                                   get_string('chooselanguagehead', 'install'),
 592                                   $sub);
 593
 594 } else {
 595     install_print_header($config, get_string('language'),
 596                                   get_string('chooselanguagehead', 'install'),
 597                                   get_string('chooselanguagesub', 'install'));
 598 }
 599
 600 $languages = get_string_manager()->get_list_of_translations();
 601 echo '<div class="userinput">';
 602 echo '<div class="formrow"><label class="formlabel" for="langselect">'.get_string('language').'</label>';
 603 echo '<select id="langselect" name="lang" class="forminput" onchange="this.form.submit()">';
 604 foreach ($languages as $name=>$value) {
 605     $selected = ($name == $CFG->lang) ? 'selected="selected"' : '';
 606     echo '<option value="'.s($name).'" '.$selected.'>'.$value.'</option>';
 607 }
 608 echo '</select></div>';
 609 echo '</div>';
 610
 611 install_print_footer($config);
 612 die;
 613