install.php

   1 <?php
   2
   3 // This file is part of Moodle - http://moodle.org/
   4 //
   5 // Moodle is free software: you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation, either version 3 of the License, or
   8 // (at your option) any later version.
   9 //
  10 // Moodle is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU General Public License
  16 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 /**
  19  * This script creates config.php file during installation.
  20  *
  21  * @package    core
  22  * @subpackage install
  23  * @copyright  2009 Petr Skoda (http://skodak.org)
  24  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  25  */
  26
  27 if (isset($_REQUEST['lang'])) {
  28     $lang = preg_replace('/[^A-Za-z0-9_-]/i', '', $_REQUEST['lang']);
  29 } else {
  30     $lang = 'en';
  31 }
  32
  33 if (isset($_REQUEST['admin'])) {
  34     $admin = preg_replace('/[^A-Za-z0-9_-]/i', '', $_REQUEST['admin']);
  35 } else {
  36     $admin = 'admin';
  37 }
  38
  39 // If config.php exists we just created config.php and need to redirect to continue installation
  40 $configfile = './config.php';
  41 if (file_exists($configfile)) {
  42     header("Location: $admin/index.php?lang=$lang");
  43     die;
  44 }
  45
  46 define('CLI_SCRIPT', false); // prevents some warnings later
  47 define('AJAX_SCRIPT', false); // prevents some warnings later
  48 define('CACHE_DISABLE_ALL', true); // Disables caching.. just in case.
  49 define('PHPUNIT_TEST', false);
  50 define('IGNORE_COMPONENT_CACHE', true);
  51
  52 // Servers should define a default timezone in php.ini, but if they don't then make sure something is defined.
  53 // This is a quick hack.  Ideally we should ask the admin for a value.  See MDL-22625 for more on this.
  54 if (function_exists('date_default_timezone_set') and function_exists('date_default_timezone_get')) {
  55     @date_default_timezone_set(@date_default_timezone_get());
  56 }
  57
  58 // make sure PHP errors are displayed - helps with diagnosing of problems
  59 @error_reporting(E_ALL);
  60 @ini_set('display_errors', '1');
  61
  62 // Check that PHP is of a sufficient version.
  63 if (version_compare(phpversion(), '5.3.3') < 0) {
  64     $phpversion = phpversion();
  65     // do NOT localise - lang strings would not work here and we CAN not move it after installib
  66     echo "Moodle 2.5 or later requires at least PHP 5.3.3 (currently using version $phpversion).<br />";
  67     echo "Please upgrade your server software or install older Moodle version.";
  68     die;
  69 }
  70
  71 // make sure iconv is available and actually works
  72 if (!function_exists('iconv')) {
  73     // this should not happen, this must be very borked install
  74     echo 'Moodle requires the iconv PHP extension. Please install or enable the iconv extension.';
  75     die();
  76 }
  77
  78 if (PHP_INT_SIZE > 4) {
  79     // most probably 64bit PHP - we need a lot more memory
  80     $minrequiredmemory = '70M';
  81 } else {
  82     // 32bit PHP
  83     $minrequiredmemory = '40M';
  84 }
  85 // increase or decrease available memory - we need to make sure moodle
  86 // installs even with low memory, otherwise developers would overlook
  87 // sudden increases of memory needs ;-)
  88 @ini_set('memory_limit', $minrequiredmemory);
  89
  90 /** Used by library scripts to check they are being called by Moodle */
  91 define('MOODLE_INTERNAL', true);
  92
  93 require_once(__DIR__.'/lib/classes/component.php');
  94 require_once(__DIR__.'/lib/installlib.php');
  95
  96 // TODO: add lang detection here if empty $_REQUEST['lang']
  97
  98 // distro specific customisation
  99 $distro = null;
 100 if (file_exists('install/distrolib.php')) {
 101     require_once('install/distrolib.php');
 102     if (function_exists('distro_get_config')) {
 103         $distro = distro_get_config();
 104     }
 105 }
 106
 107 $config = new stdClass();
 108 $config->lang = $lang;
 109
 110 if (!empty($_POST)) {
 111     if (install_ini_get_bool('magic_quotes_gpc')) {
 112         $_POST = array_map('stripslashes', $_POST);
 113     }
 114
 115     $config->stage = (int)$_POST['stage'];
 116
 117     if (isset($_POST['previous'])) {
 118         $config->stage--;
 119         if (INSTALL_DATABASETYPE and !empty($distro->dbtype)) {
 120             $config->stage--;
 121         }
 122         if ($config->stage == INSTALL_ENVIRONMENT or $config->stage == INSTALL_DOWNLOADLANG) {
 123             $config->stage--;
 124         }
 125     } else if (isset($_POST['next'])) {
 126         $config->stage++;
 127     }
 128
 129     $config->dbtype   = trim($_POST['dbtype']);
 130     $config->dbhost   = trim($_POST['dbhost']);
 131     $config->dbuser   = trim($_POST['dbuser']);
 132     $config->dbpass   = trim($_POST['dbpass']);
 133     $config->dbname   = trim($_POST['dbname']);
 134     $config->prefix   = trim($_POST['prefix']);
 135     $config->dbport   = (int)trim($_POST['dbport']);
 136     $config->dbsocket = trim($_POST['dbsocket']);
 137
 138     if ($config->dbport <= 0) {
 139         $config->dbport = '';
 140     }
 141
 142     $config->admin    = empty($_POST['admin']) ? 'admin' : trim($_POST['admin']);
 143
 144     $config->dataroot = trim($_POST['dataroot']);
 145
 146 } else {
 147     $config->stage    = INSTALL_WELCOME;
 148
 149     $config->dbtype   = empty($distro->dbtype) ? '' : $distro->dbtype; // let distro skip dbtype selection
 150     $config->dbhost   = empty($distro->dbhost) ? 'localhost' : $distro->dbhost; // let distros set dbhost
 151     $config->dbuser   = empty($distro->dbuser) ? '' : $distro->dbuser; // let distros set dbuser
 152     $config->dbpass   = '';
 153     $config->dbname   = 'moodle';
 154     $config->prefix   = 'mdl_';
 155     $config->dbport   = empty($distro->dbport) ? '' : $distro->dbport;
 156     $config->dbsocket = empty($distro->dbsocket) ? '' : $distro->dbsocket;
 157
 158     $config->admin    = 'admin';
 159
 160     $config->dataroot = empty($distro->dataroot) ? null  : $distro->dataroot; // initialised later after including libs or by distro
 161 }
 162
 163 // Fake some settings so that we can use selected functions from moodlelib.php, weblib.php and filelib.php.
 164 $CFG = new stdClass();
 165 $CFG->lang                 = $config->lang;
 166 $CFG->dirroot              = dirname(__FILE__);
 167 $CFG->libdir               = "$CFG->dirroot/lib";
 168 $CFG->wwwroot              = install_guess_wwwroot(); // can not be changed - ppl must use the real address when installing
 169 $CFG->httpswwwroot         = $CFG->wwwroot;
 170 $CFG->dataroot             = $config->dataroot;
 171 $CFG->tempdir              = $CFG->dataroot.'/temp';
 172 $CFG->cachedir             = $CFG->dataroot.'/cache';
 173 $CFG->localcachedir        = $CFG->dataroot.'/localcache';
 174 $CFG->admin                = $config->admin;
 175 $CFG->docroot              = 'http://docs.moodle.org';
 176 $CFG->langotherroot        = $CFG->dataroot.'/lang';
 177 $CFG->langlocalroot        = $CFG->dataroot.'/lang';
 178 $CFG->directorypermissions = isset($distro->directorypermissions) ? $distro->directorypermissions : 00777; // let distros set dir permissions
 179 $CFG->filepermissions      = ($CFG->directorypermissions & 0666);
 180 $CFG->umaskpermissions     = (($CFG->directorypermissions & 0777) ^ 0777);
 181 $CFG->running_installer    = true;
 182 $CFG->early_install_lang   = true;
 183 $CFG->ostype               = (stristr(PHP_OS, 'win') && !stristr(PHP_OS, 'darwin')) ? 'WINDOWS' : 'UNIX';
 184 $CFG->debug                = (E_ALL | E_STRICT);
 185 $CFG->debugdisplay         = true;
 186 $CFG->debugdeveloper       = true;
 187
 188 // Require all needed libs
 189 require_once($CFG->libdir.'/setuplib.php');
 190
 191 // we need to make sure we have enough memory to load all libraries
 192 $memlimit = @ini_get('memory_limit');
 193 if (!empty($memlimit) and $memlimit != -1) {
 194     if (get_real_size($memlimit) < get_real_size($minrequiredmemory)) {
 195         // do NOT localise - lang strings would not work here and we CAN not move it to later place
 196         echo "Moodle requires at least {$minrequiredmemory}B of PHP memory.<br />";
 197         echo "Please contact server administrator to fix PHP.ini memory settings.";
 198         die;
 199     }
 200 }
 201
 202 // Continue with lib loading
 203 require_once($CFG->libdir.'/classes/text.php');
 204 require_once($CFG->libdir.'/classes/string_manager.php');
 205 require_once($CFG->libdir.'/classes/string_manager_install.php');
 206 require_once($CFG->libdir.'/classes/string_manager_standard.php');
 207 require_once($CFG->libdir.'/weblib.php');
 208 require_once($CFG->libdir.'/outputlib.php');
 209 require_once($CFG->libdir.'/dmllib.php');
 210 require_once($CFG->libdir.'/moodlelib.php');
 211 require_once($CFG->libdir .'/pagelib.php');
 212 require_once($CFG->libdir.'/deprecatedlib.php');
 213 require_once($CFG->libdir.'/adminlib.php');
 214 require_once($CFG->libdir.'/environmentlib.php');
 215 require_once($CFG->libdir.'/componentlib.class.php');
 216 require_once($CFG->dirroot.'/cache/lib.php');
 217
 218 //point pear include path to moodles lib/pear so that includes and requires will search there for files before anywhere else
 219 //the problem is that we need specific version of quickforms and hacked excel files :-(
 220 ini_set('include_path', $CFG->libdir.'/pear' . PATH_SEPARATOR . ini_get('include_path'));
 221 //point zend include path to moodles lib/zend so that includes and requires will search there for files before anywhere else
 222 ini_set('include_path', $CFG->libdir.'/zend' . PATH_SEPARATOR . ini_get('include_path'));
 223
 224 require('version.php');
 225 $CFG->target_release = $release;
 226
 227 $SESSION = new stdClass();
 228 $SESSION->lang = $CFG->lang;
 229
 230 $USER = new stdClass();
 231 $USER->id = 0;
 232
 233 $COURSE = new stdClass();
 234 $COURSE->id = 0;
 235
 236 $SITE = $COURSE;
 237 define('SITEID', 0);
 238
 239 $hint_dataroot = '';
 240 $hint_admindir = '';
 241 $hint_database = '';
 242
 243 // Are we in help mode?
 244 if (isset($_GET['help'])) {
 245     install_print_help_page($_GET['help']);
 246 }
 247
 248 //first time here? find out suitable dataroot
 249 if (is_null($CFG->dataroot)) {
 250     $CFG->dataroot = dirname(dirname(__FILE__)).DIRECTORY_SEPARATOR.'moodledata';
 251
 252     $i = 0; //safety check - dirname might return some unexpected results
 253     while(is_dataroot_insecure()) {
 254         $parrent = dirname($CFG->dataroot);
 255         $i++;
 256         if ($parrent == '/' or $parrent == '.' or preg_match('/^[a-z]:\\\?$/i', $parrent) or ($i > 100)) {
 257             $CFG->dataroot = ''; //can not find secure location for dataroot
 258             break;
 259         }
 260         $CFG->dataroot = dirname($parrent).DIRECTORY_SEPARATOR.'moodledata';
 261     }
 262     $config->dataroot = $CFG->dataroot;
 263     $config->stage    = INSTALL_WELCOME;
 264 }
 265
 266 // now let's do the stage work
 267 if ($config->stage < INSTALL_WELCOME) {
 268     $config->stage = INSTALL_WELCOME;
 269 }
 270 if ($config->stage > INSTALL_SAVE) {
 271     $config->stage = INSTALL_SAVE;
 272 }
 273
 274
 275
 276 if ($config->stage == INSTALL_SAVE) {
 277     $CFG->early_install_lang = false;
 278
 279     $database = moodle_database::get_driver_instance($config->dbtype, 'native');
 280     if (!$database->driver_installed()) {
 281         $config->stage = INSTALL_DATABASETYPE;
 282     } else {
 283         if (function_exists('distro_pre_create_db')) { // Hook for distros needing to do something before DB creation
 284             $distro = distro_pre_create_db($database, $config->dbhost, $config->dbuser, $config->dbpass, $config->dbname, $config->prefix, array('dbpersist'=>0, 'dbport'=>$config->dbport, 'dbsocket'=>$config->dbsocket), $distro);
 285         }
 286         $hint_database = install_db_validate($database, $config->dbhost, $config->dbuser, $config->dbpass, $config->dbname, $config->prefix, array('dbpersist'=>0, 'dbport'=>$config->dbport, 'dbsocket'=>$config->dbsocket));
 287
 288         if ($hint_database === '') {
 289             $configphp = install_generate_configphp($database, $CFG);
 290
 291             umask(0137);
 292             if (($fh = @fopen($configfile, 'w')) !== false) {
 293                 fwrite($fh, $configphp);
 294                 fclose($fh);
 295             }
 296
 297             if (file_exists($configfile)) {
 298                 // config created, let's continue!
 299                 redirect("$CFG->wwwroot/$config->admin/index.php?lang=$config->lang");
 300             }
 301
 302             install_print_header($config, 'config.php',
 303                                           get_string('configurationcompletehead', 'install'),
 304                                           get_string('configurationcompletesub', 'install').get_string('configfilenotwritten', 'install'));
 305             echo '<div class="configphp"><pre>';
 306             echo p($configphp);
 307             echo '</pre></div>';
 308
 309             install_print_footer($config);
 310             die;
 311
 312         } else {
 313             $config->stage = INSTALL_DATABASE;
 314         }
 315     }
 316 }
 317
 318
 319
 320 if ($config->stage == INSTALL_DOWNLOADLANG) {
 321     if (empty($CFG->dataroot)) {
 322         $config->stage = INSTALL_PATHS;
 323
 324     } else if (is_dataroot_insecure()) {
 325         $hint_dataroot = get_string('pathsunsecuredataroot', 'install');
 326         $config->stage = INSTALL_PATHS;
 327
 328     } else if (!file_exists($CFG->dataroot)) {
 329         $a = new stdClass();
 330         $a->parent = dirname($CFG->dataroot);
 331         $a->dataroot = $CFG->dataroot;
 332         if (!is_writable($a->parent)) {
 333             $hint_dataroot = get_string('pathsroparentdataroot', 'install', $a);
 334             $config->stage = INSTALL_PATHS;
 335         } else {
 336             if (!install_init_dataroot($CFG->dataroot, $CFG->directorypermissions)) {
 337                 $hint_dataroot = get_string('pathserrcreatedataroot', 'install', $a);
 338                 $config->stage = INSTALL_PATHS;
 339             }
 340         }
 341
 342     } else if (!install_init_dataroot($CFG->dataroot, $CFG->directorypermissions)) {
 343         $hint_dataroot = get_string('pathserrcreatedataroot', 'install', array('dataroot' => $CFG->dataroot));
 344         $config->stage = INSTALL_PATHS;
 345     }
 346
 347     if (empty($hint_dataroot) and !is_writable($CFG->dataroot)) {
 348         $hint_dataroot = get_string('pathsrodataroot', 'install');
 349         $config->stage = INSTALL_PATHS;
 350     }
 351
 352     if ($config->admin === '' or !file_exists($CFG->dirroot.'/'.$config->admin.'/environment.xml')) {
 353         $hint_admindir = get_string('pathswrongadmindir', 'install');
 354         $config->stage = INSTALL_PATHS;
 355     }
 356 }
 357
 358
 359
 360 if ($config->stage == INSTALL_DOWNLOADLANG) {
 361     // no need to download anything if en lang selected
 362     if ($CFG->lang == 'en') {
 363         $config->stage = INSTALL_DATABASETYPE;
 364     }
 365 }
 366
 367
 368
 369 if ($config->stage == INSTALL_DATABASETYPE) {
 370     // skip db selection if distro package supports only one db
 371     if (!empty($distro->dbtype)) {
 372         $config->stage = INSTALL_DATABASE;
 373     }
 374 }
 375
 376
 377 if ($config->stage == INSTALL_DOWNLOADLANG) {
 378     $downloaderror = '';
 379
 380     // download and install required lang packs, the lang dir has already been created in install_init_dataroot
 381     $installer = new lang_installer($CFG->lang);
 382     $results = $installer->run();
 383     foreach ($results as $langcode => $langstatus) {
 384         if ($langstatus === lang_installer::RESULT_DOWNLOADERROR) {
 385             $a       = new stdClass();
 386             $a->url  = $installer->lang_pack_url($langcode);
 387             $a->dest = $CFG->dataroot.'/lang';
 388             $downloaderror = get_string('remotedownloaderror', 'error', $a);
 389         }
 390     }
 391
 392     if ($downloaderror !== '') {
 393         install_print_header($config, get_string('language'), get_string('langdownloaderror', 'install', $CFG->lang), $downloaderror);
 394         install_print_footer($config);
 395         die;
 396     } else {
 397         if (empty($distro->dbtype)) {
 398             $config->stage = INSTALL_DATABASETYPE;
 399         } else {
 400             $config->stage = INSTALL_DATABASE;
 401         }
 402     }
 403
 404     // switch the string_manager instance to stop using install/lang/
 405     $CFG->early_install_lang = false;
 406     $CFG->langotherroot      = $CFG->dataroot.'/lang';
 407     $CFG->langlocalroot      = $CFG->dataroot.'/lang';
 408     get_string_manager(true);
 409 }
 410
 411
 412 if ($config->stage == INSTALL_DATABASE) {
 413     $CFG->early_install_lang = false;
 414
 415     $database = moodle_database::get_driver_instance($config->dbtype, 'native');
 416
 417     $sub = '<h3>'.$database->get_name().'</h3>'.$database->get_configuration_help();
 418
 419     install_print_header($config, get_string('database', 'install'), get_string('databasehead', 'install'), $sub);
 420
 421     $strdbhost   = get_string('databasehost', 'install');
 422     $strdbname   = get_string('databasename', 'install');
 423     $strdbuser   = get_string('databaseuser', 'install');
 424     $strdbpass   = get_string('databasepass', 'install');
 425     $strprefix   = get_string('dbprefix', 'install');
 426     $strdbport   = get_string('databaseport', 'install');
 427     $strdbsocket = get_string('databasesocket', 'install');
 428
 429     echo '<div class="userinput">';
 430
 431     $disabled = empty($distro->dbhost) ? '' : 'disabled="disabled';
 432     echo '<div class="formrow"><label for="id_dbhost" class="formlabel">'.$strdbhost.'</label>';
 433     echo '<input id="id_dbhost" name="dbhost" '.$disabled.' type="text" value="'.s($config->dbhost).'" size="50" class="forminput" />';
 434     echo '</div>';
 435
 436     echo '<div class="formrow"><label for="id_dbname" class="formlabel">'.$strdbname.'</label>';
 437     echo '<input id="id_dbname" name="dbname" type="text" value="'.s($config->dbname).'" size="50" class="forminput" />';
 438     echo '</div>';
 439
 440     $disabled = empty($distro->dbuser) ? '' : 'disabled="disabled';
 441     echo '<div class="formrow"><label for="id_dbuser" class="formlabel">'.$strdbuser.'</label>';
 442     echo '<input id="id_dbuser" name="dbuser" '.$disabled.' type="text" value="'.s($config->dbuser).'" size="50" class="forminput" />';
 443     echo '</div>';
 444
 445     echo '<div class="formrow"><label for="id_dbpass" class="formlabel">'.$strdbpass.'</label>';
 446     // no password field here, the password may be visible in config.php if we can not write it to disk
 447     echo '<input id="id_dbpass" name="dbpass" type="text" value="'.s($config->dbpass).'" size="50" class="forminput" />';
 448     echo '</div>';
 449
 450     echo '<div class="formrow"><label for="id_prefix" class="formlabel">'.$strprefix.'</label>';
 451     echo '<input id="id_prefix" name="prefix" type="text" value="'.s($config->prefix).'" size="10" class="forminput" />';
 452     echo '</div>';
 453
 454     echo '<div class="formrow"><label for="id_prefix" class="formlabel">'.$strdbport.'</label>';
 455     echo '<input id="id_dbport" name="dbport" type="text" value="'.s($config->dbport).'" size="10" class="forminput" />';
 456     echo '</div>';
 457
 458     if (!(stristr(PHP_OS, 'win') && !stristr(PHP_OS, 'darwin'))) {
 459         echo '<div class="formrow"><label for="id_dbsocket" class="formlabel">'.$strdbsocket.'</label>';
 460         echo '<input id="id_dbsocket" name="dbsocket" type="text" value="'.s($config->dbsocket).'" size="50" class="forminput" />';
 461         echo '</div>';
 462     }
 463
 464     echo '<div class="hint">'.$hint_database.'</div>';
 465     echo '</div>';
 466     install_print_footer($config);
 467     die;
 468 }
 469
 470
 471 if ($config->stage == INSTALL_DATABASETYPE) {
 472     $CFG->early_install_lang = false;
 473
 474     // Finally ask for DB type
 475     install_print_header($config, get_string('database', 'install'),
 476                                   get_string('databasetypehead', 'install'),
 477                                   get_string('databasetypesub', 'install'));
 478
 479     $databases = array('mysqli' => moodle_database::get_driver_instance('mysqli', 'native'),
 480                        'mariadb'=> moodle_database::get_driver_instance('mariadb', 'native'),
 481                        'pgsql'  => moodle_database::get_driver_instance('pgsql',  'native'),
 482                        'oci'    => moodle_database::get_driver_instance('oci',    'native'),
 483                        'sqlsrv' => moodle_database::get_driver_instance('sqlsrv', 'native'), // MS SQL*Server PHP driver
 484                        'mssql'  => moodle_database::get_driver_instance('mssql',  'native'), // FreeTDS driver
 485                       );
 486
 487     echo '<div class="userinput">';
 488     echo '<div class="formrow"><label class="formlabel" for="dbtype">'.get_string('dbtype', 'install').'</label>';
 489     echo '<select id="dbtype" name="dbtype" class="forminput">';
 490     $disabled = array();
 491     $options = array();
 492     foreach ($databases as $type=>$database) {
 493         if ($database->driver_installed() !== true) {
 494             $disabled[$type] = $database;
 495             continue;
 496         }
 497         echo '<option value="'.s($type).'">'.$database->get_name().'</option>';
 498     }
 499     if ($disabled) {
 500         echo '<optgroup label="'.s(get_string('notavailable')).'">';
 501         foreach ($disabled as $type=>$database) {
 502             echo '<option value="'.s($type).'" class="notavailable">'.$database->get_name().'</option>';
 503         }
 504         echo '</optgroup>';
 505     }
 506     echo '</select></div>';
 507     echo '</div>';
 508
 509     install_print_footer($config);
 510     die;
 511 }
 512
 513
 514
 515 if ($config->stage == INSTALL_ENVIRONMENT or $config->stage == INSTALL_PATHS) {
 516     $version_fail = (version_compare(phpversion(), "5.3.3") < 0);
 517     $curl_fail    = ($lang !== 'en' and !extension_loaded('curl')); // needed for lang pack download
 518     $zip_fail     = ($lang !== 'en' and !extension_loaded('zip'));  // needed for lang pack download
 519
 520     if ($version_fail or $curl_fail or $zip_fail) {
 521         $config->stage = INSTALL_ENVIRONMENT;
 522
 523         install_print_header($config, get_string('environmenthead', 'install'),
 524                                       get_string('errorsinenvironment', 'install'),
 525                                       get_string('environmentsub2', 'install'));
 526
 527         echo '<div id="envresult"><dl>';
 528         if ($version_fail) {
 529             $a = (object)array('needed'=>'5.3.3', 'current'=>phpversion());
 530             echo '<dt>'.get_string('phpversion', 'install').'</dt><dd>'.get_string('environmentrequireversion', 'admin', $a).'</dd>';
 531         }
 532         if ($curl_fail) {
 533             echo '<dt>'.get_string('phpextension', 'install', 'cURL').'</dt><dd>'.get_string('environmentrequireinstall', 'admin').'</dd>';
 534         }
 535         if ($zip_fail) {
 536             echo '<dt>'.get_string('phpextension', 'install', 'Zip').'</dt><dd>'.get_string('environmentrequireinstall', 'admin').'</dd>';
 537         }
 538         echo '</dl></div>';
 539
 540         install_print_footer($config, true);
 541         die;
 542
 543     } else {
 544         $config->stage = INSTALL_PATHS;
 545     }
 546 }
 547
 548
 549
 550 if ($config->stage == INSTALL_PATHS) {
 551     $paths = array('wwwroot'  => get_string('wwwroot', 'install'),
 552                    'dirroot'  => get_string('dirroot', 'install'),
 553                    'dataroot' => get_string('dataroot', 'install'));
 554
 555     $sub = '<dl>';
 556     foreach ($paths as $path=>$name) {
 557         $sub .= '<dt>'.$name.'</dt><dd>'.get_string('pathssub'.$path, 'install').'</dd>';
 558     }
 559     if (!file_exists("$CFG->dirroot/admin/environment.xml")) {
 560         $sub .= '<dt>'.get_string('admindirname', 'install').'</dt><dd>'.get_string('pathssubadmindir', 'install').'</dd>';
 561     }
 562     $sub .= '</dl>';
 563
 564     install_print_header($config, get_string('paths', 'install'), get_string('pathshead', 'install'), $sub);
 565
 566     $strwwwroot      = get_string('wwwroot', 'install');
 567     $strdirroot      = get_string('dirroot', 'install');
 568     $strdataroot     = get_string('dataroot', 'install');
 569     $stradmindirname = get_string('admindirname', 'install');
 570
 571     echo '<div class="userinput">';
 572     echo '<div class="formrow"><label for="id_wwwroot" class="formlabel">'.$paths['wwwroot'].'</label>';
 573     echo '<input id="id_wwwroot" name="wwwroot" type="text" value="'.s($CFG->wwwroot).'" disabled="disabled" size="70" class="forminput" />';
 574     echo '</div>';
 575
 576     echo '<div class="formrow"><label for="id_dirroot" class="formlabel">'.$paths['dirroot'].'</label>';
 577     echo '<input id="id_dirroot" name="dirroot" type="text" value="'.s($CFG->dirroot).'" disabled="disabled" size="70"class="forminput" />';
 578     echo '</div>';
 579
 580     echo '<div class="formrow"><label for="id_dataroot" class="formlabel">'.$paths['dataroot'].'</label>';
 581     echo '<input id="id_dataroot" name="dataroot" type="text" value="'.s($config->dataroot).'" size="70" class="forminput" />';
 582     if ($hint_dataroot !== '') {
 583         echo '<div class="hint">'.$hint_dataroot.'</div>';
 584     }
 585     echo '</div>';
 586
 587
 588     if (!file_exists("$CFG->dirroot/admin/environment.xml")) {
 589         echo '<div class="formrow"><label for="id_admin" class="formlabel">'.$paths['admindir'].'</label>';
 590         echo '<input id="id_admin" name="admin" type="text" value="'.s($config->admin).'" size="10" class="forminput" />';
 591         if ($hint_admindir !== '') {
 592             echo '<div class="hint">'.$hint_admindir.'</div>';
 593         }
 594         echo '</div>';
 595     }
 596
 597     echo '</div>';
 598
 599     install_print_footer($config);
 600     die;
 601 }
 602
 603
 604
 605 $config->stage = INSTALL_WELCOME;
 606
 607 if ($distro) {
 608     ob_start();
 609     include('install/distribution.html');
 610     $sub = ob_get_clean();
 611
 612     install_print_header($config, get_string('language'),
 613                                   get_string('chooselanguagehead', 'install'),
 614                                   $sub);
 615
 616 } else {
 617     install_print_header($config, get_string('language'),
 618                                   get_string('chooselanguagehead', 'install'),
 619                                   get_string('chooselanguagesub', 'install'));
 620 }
 621
 622 $languages = get_string_manager()->get_list_of_translations();
 623 echo '<div class="userinput">';
 624 echo '<div class="formrow"><label class="formlabel" for="langselect">'.get_string('language').'</label>';
 625 echo '<select id="langselect" name="lang" class="forminput" onchange="this.form.submit()">';
 626 foreach ($languages as $name=>$value) {
 627     $selected = ($name == $CFG->lang) ? 'selected="selected"' : '';
 628     echo '<option value="'.s($name).'" '.$selected.'>'.$value.'</option>';
 629 }
 630 echo '</select></div>';
 631 echo '</div>';
 632
 633 install_print_footer($config);
 634 die;
 635