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(), '5.4.4') < 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 2.7 or later requires at least PHP 5.4.4 (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     $config->stage = (int)$_POST['stage'];
 112
 113     if (isset($_POST['previous'])) {
 114         $config->stage--;
 115         if (INSTALL_DATABASETYPE and !empty($distro->dbtype)) {
 116             $config->stage--;
 117         }
 118         if ($config->stage == INSTALL_ENVIRONMENT or $config->stage == INSTALL_DOWNLOADLANG) {
 119             $config->stage--;
 120         }
 121     } else if (isset($_POST['next'])) {
 122         $config->stage++;
 123     }
 124
 125     $config->dbtype   = trim($_POST['dbtype']);
 126     $config->dbhost   = trim($_POST['dbhost']);
 127     $config->dbuser   = trim($_POST['dbuser']);
 128     $config->dbpass   = trim($_POST['dbpass']);
 129     $config->dbname   = trim($_POST['dbname']);
 130     $config->prefix   = trim($_POST['prefix']);
 131     $config->dbport   = (int)trim($_POST['dbport']);
 132     $config->dbsocket = trim($_POST['dbsocket']);
 133
 134     if ($config->dbport <= 0) {
 135         $config->dbport = '';
 136     }
 137
 138     $config->admin    = empty($_POST['admin']) ? 'admin' : trim($_POST['admin']);
 139
 140     $config->dataroot = trim($_POST['dataroot']);
 141
 142 } else {
 143     $config->stage    = INSTALL_WELCOME;
 144
 145     $config->dbtype   = empty($distro->dbtype) ? '' : $distro->dbtype; // let distro skip dbtype selection
 146     $config->dbhost   = empty($distro->dbhost) ? 'localhost' : $distro->dbhost; // let distros set dbhost
 147     $config->dbuser   = empty($distro->dbuser) ? '' : $distro->dbuser; // let distros set dbuser
 148     $config->dbpass   = '';
 149     $config->dbname   = 'moodle';
 150     $config->prefix   = 'mdl_';
 151     $config->dbport   = empty($distro->dbport) ? '' : $distro->dbport;
 152     $config->dbsocket = empty($distro->dbsocket) ? '' : $distro->dbsocket;
 153
 154     $config->admin    = 'admin';
 155
 156     $config->dataroot = empty($distro->dataroot) ? null  : $distro->dataroot; // initialised later after including libs or by distro
 157 }
 158
 159 // Fake some settings so that we can use selected functions from moodlelib.php, weblib.php and filelib.php.
 160 global $CFG;
 161 $CFG = new stdClass();
 162 $CFG->lang                 = $config->lang;
 163 $CFG->dirroot              = dirname(__FILE__);
 164 $CFG->libdir               = "$CFG->dirroot/lib";
 165 $CFG->wwwroot              = install_guess_wwwroot(); // can not be changed - ppl must use the real address when installing
 166 $CFG->httpswwwroot         = $CFG->wwwroot;
 167 $CFG->dataroot             = $config->dataroot;
 168 $CFG->tempdir              = $CFG->dataroot.'/temp';
 169 $CFG->cachedir             = $CFG->dataroot.'/cache';
 170 $CFG->localcachedir        = $CFG->dataroot.'/localcache';
 171 $CFG->admin                = $config->admin;
 172 $CFG->docroot              = 'http://docs.moodle.org';
 173 $CFG->langotherroot        = $CFG->dataroot.'/lang';
 174 $CFG->langlocalroot        = $CFG->dataroot.'/lang';
 175 $CFG->directorypermissions = isset($distro->directorypermissions) ? $distro->directorypermissions : 00777; // let distros set dir permissions
 176 $CFG->filepermissions      = ($CFG->directorypermissions & 0666);
 177 $CFG->umaskpermissions     = (($CFG->directorypermissions & 0777) ^ 0777);
 178 $CFG->running_installer    = true;
 179 $CFG->early_install_lang   = true;
 180 $CFG->ostype               = (stristr(PHP_OS, 'win') && !stristr(PHP_OS, 'darwin')) ? 'WINDOWS' : 'UNIX';
 181 $CFG->debug                = (E_ALL | E_STRICT);
 182 $CFG->debugdisplay         = true;
 183 $CFG->debugdeveloper       = true;
 184
 185 // Require all needed libs
 186 require_once($CFG->libdir.'/setuplib.php');
 187
 188 // we need to make sure we have enough memory to load all libraries
 189 $memlimit = @ini_get('memory_limit');
 190 if (!empty($memlimit) and $memlimit != -1) {
 191     if (get_real_size($memlimit) < get_real_size($minrequiredmemory)) {
 192         // do NOT localise - lang strings would not work here and we CAN not move it to later place
 193         echo "Moodle requires at least {$minrequiredmemory}B of PHP memory.<br />";
 194         echo "Please contact server administrator to fix PHP.ini memory settings.";
 195         die;
 196     }
 197 }
 198
 199 // Continue with lib loading
 200 require_once($CFG->libdir.'/classes/text.php');
 201 require_once($CFG->libdir.'/classes/string_manager.php');
 202 require_once($CFG->libdir.'/classes/string_manager_install.php');
 203 require_once($CFG->libdir.'/classes/string_manager_standard.php');
 204 require_once($CFG->libdir.'/weblib.php');
 205 require_once($CFG->libdir.'/outputlib.php');
 206 require_once($CFG->libdir.'/dmllib.php');
 207 require_once($CFG->libdir.'/moodlelib.php');
 208 require_once($CFG->libdir .'/pagelib.php');
 209 require_once($CFG->libdir.'/deprecatedlib.php');
 210 require_once($CFG->libdir.'/adminlib.php');
 211 require_once($CFG->libdir.'/environmentlib.php');
 212 require_once($CFG->libdir.'/componentlib.class.php');
 213 require_once($CFG->dirroot.'/cache/lib.php');
 214
 215 //point pear include path to moodles lib/pear so that includes and requires will search there for files before anywhere else
 216 //the problem is that we need specific version of quickforms and hacked excel files :-(
 217 ini_set('include_path', $CFG->libdir.'/pear' . PATH_SEPARATOR . ini_get('include_path'));
 218 //point zend include path to moodles lib/zend so that includes and requires will search there for files before anywhere else
 219 ini_set('include_path', $CFG->libdir.'/zend' . PATH_SEPARATOR . ini_get('include_path'));
 220
 221 // Register our classloader, in theory somebody might want to replace it to load other hacked core classes.
 222 // Required because the database checks below lead to session interaction which is going to lead us to requiring autoloaded classes.
 223 if (defined('COMPONENT_CLASSLOADER')) {
 224     spl_autoload_register(COMPONENT_CLASSLOADER);
 225 } else {
 226     spl_autoload_register('core_component::classloader');
 227 }
 228
 229 require('version.php');
 230 $CFG->target_release = $release;
 231
 232 $_SESSION = array();
 233 $_SESSION['SESSION'] = new stdClass();
 234 $_SESSION['SESSION']->lang = $CFG->lang;
 235 $_SESSION['USER'] = new stdClass();
 236 $_SESSION['USER']->id = 0;
 237 $_SESSION['USER']->mnethostid = 1;
 238
 239 global $SESSION;
 240 global $USER;
 241 $SESSION = &$_SESSION['SESSION'];
 242 $USER    = &$_SESSION['USER'];
 243
 244 global $COURSE;
 245 $COURSE = new stdClass();
 246 $COURSE->id = 1;
 247
 248 global $SITE;
 249 $SITE = $COURSE;
 250 define('SITEID', 1);
 251
 252 $hint_dataroot = '';
 253 $hint_admindir = '';
 254 $hint_database = '';
 255
 256 // Are we in help mode?
 257 if (isset($_GET['help'])) {
 258     install_print_help_page($_GET['help']);
 259 }
 260
 261 //first time here? find out suitable dataroot
 262 if (is_null($CFG->dataroot)) {
 263     $CFG->dataroot = dirname(dirname(__FILE__)).DIRECTORY_SEPARATOR.'moodledata';
 264
 265     $i = 0; //safety check - dirname might return some unexpected results
 266     while(is_dataroot_insecure()) {
 267         $parrent = dirname($CFG->dataroot);
 268         $i++;
 269         if ($parrent == '/' or $parrent == '.' or preg_match('/^[a-z]:\\\?$/i', $parrent) or ($i > 100)) {
 270             $CFG->dataroot = ''; //can not find secure location for dataroot
 271             break;
 272         }
 273         $CFG->dataroot = dirname($parrent).DIRECTORY_SEPARATOR.'moodledata';
 274     }
 275     $config->dataroot = $CFG->dataroot;
 276     $config->stage    = INSTALL_WELCOME;
 277 }
 278
 279 // now let's do the stage work
 280 if ($config->stage < INSTALL_WELCOME) {
 281     $config->stage = INSTALL_WELCOME;
 282 }
 283 if ($config->stage > INSTALL_SAVE) {
 284     $config->stage = INSTALL_SAVE;
 285 }
 286
 287
 288
 289 if ($config->stage == INSTALL_SAVE) {
 290     $CFG->early_install_lang = false;
 291
 292     $database = moodle_database::get_driver_instance($config->dbtype, 'native');
 293     if (!$database->driver_installed()) {
 294         $config->stage = INSTALL_DATABASETYPE;
 295     } else {
 296         if (function_exists('distro_pre_create_db')) { // Hook for distros needing to do something before DB creation
 297             $distro = distro_pre_create_db($database, $config->dbhost, $config->dbuser, $config->dbpass, $config->dbname, $config->prefix, array('dbpersist'=>0, 'dbport'=>$config->dbport, 'dbsocket'=>$config->dbsocket), $distro);
 298         }
 299         $hint_database = install_db_validate($database, $config->dbhost, $config->dbuser, $config->dbpass, $config->dbname, $config->prefix, array('dbpersist'=>0, 'dbport'=>$config->dbport, 'dbsocket'=>$config->dbsocket));
 300
 301         if ($hint_database === '') {
 302             $configphp = install_generate_configphp($database, $CFG);
 303
 304             umask(0137);
 305             if (($fh = @fopen($configfile, 'w')) !== false) {
 306                 fwrite($fh, $configphp);
 307                 fclose($fh);
 308             }
 309
 310             if (file_exists($configfile)) {
 311                 // config created, let's continue!
 312                 redirect("$CFG->wwwroot/$config->admin/index.php?lang=$config->lang");
 313             }
 314
 315             install_print_header($config, 'config.php',
 316                                           get_string('configurationcompletehead', 'install'),
 317                                           get_string('configurationcompletesub', 'install').get_string('configfilenotwritten', 'install'), 'alert-error');
 318             echo '<div class="configphp"><pre>';
 319             echo p($configphp);
 320             echo '</pre></div>';
 321
 322             install_print_footer($config);
 323             die;
 324
 325         } else {
 326             $config->stage = INSTALL_DATABASE;
 327         }
 328     }
 329 }
 330
 331
 332
 333 if ($config->stage == INSTALL_DOWNLOADLANG) {
 334     if (empty($CFG->dataroot)) {
 335         $config->stage = INSTALL_PATHS;
 336
 337     } else if (is_dataroot_insecure()) {
 338         $hint_dataroot = get_string('pathsunsecuredataroot', 'install');
 339         $config->stage = INSTALL_PATHS;
 340
 341     } else if (!file_exists($CFG->dataroot)) {
 342         $a = new stdClass();
 343         $a->parent = dirname($CFG->dataroot);
 344         $a->dataroot = $CFG->dataroot;
 345         if (!is_writable($a->parent)) {
 346             $hint_dataroot = get_string('pathsroparentdataroot', 'install', $a);
 347             $config->stage = INSTALL_PATHS;
 348         } else {
 349             if (!install_init_dataroot($CFG->dataroot, $CFG->directorypermissions)) {
 350                 $hint_dataroot = get_string('pathserrcreatedataroot', 'install', $a);
 351                 $config->stage = INSTALL_PATHS;
 352             }
 353         }
 354
 355     } else if (!install_init_dataroot($CFG->dataroot, $CFG->directorypermissions)) {
 356         $hint_dataroot = get_string('pathserrcreatedataroot', 'install', array('dataroot' => $CFG->dataroot));
 357         $config->stage = INSTALL_PATHS;
 358     }
 359
 360     if (empty($hint_dataroot) and !is_writable($CFG->dataroot)) {
 361         $hint_dataroot = get_string('pathsrodataroot', 'install');
 362         $config->stage = INSTALL_PATHS;
 363     }
 364
 365     if ($config->admin === '' or !file_exists($CFG->dirroot.'/'.$config->admin.'/environment.xml')) {
 366         $hint_admindir = get_string('pathswrongadmindir', 'install');
 367         $config->stage = INSTALL_PATHS;
 368     }
 369 }
 370
 371
 372
 373 if ($config->stage == INSTALL_DOWNLOADLANG) {
 374     // no need to download anything if en lang selected
 375     if ($CFG->lang == 'en') {
 376         $config->stage = INSTALL_DATABASETYPE;
 377     }
 378 }
 379
 380
 381
 382 if ($config->stage == INSTALL_DATABASETYPE) {
 383     // skip db selection if distro package supports only one db
 384     if (!empty($distro->dbtype)) {
 385         $config->stage = INSTALL_DATABASE;
 386     }
 387 }
 388
 389
 390 if ($config->stage == INSTALL_DOWNLOADLANG) {
 391     $downloaderror = '';
 392
 393     // download and install required lang packs, the lang dir has already been created in install_init_dataroot
 394     $installer = new lang_installer($CFG->lang);
 395     $results = $installer->run();
 396     foreach ($results as $langcode => $langstatus) {
 397         if ($langstatus === lang_installer::RESULT_DOWNLOADERROR) {
 398             $a       = new stdClass();
 399             $a->url  = $installer->lang_pack_url($langcode);
 400             $a->dest = $CFG->dataroot.'/lang';
 401             $downloaderror = get_string('remotedownloaderror', 'error', $a);
 402         }
 403     }
 404
 405     if ($downloaderror !== '') {
 406         install_print_header($config, get_string('language'), get_string('langdownloaderror', 'install', $CFG->lang), $downloaderror);
 407         install_print_footer($config);
 408         die;
 409     } else {
 410         if (empty($distro->dbtype)) {
 411             $config->stage = INSTALL_DATABASETYPE;
 412         } else {
 413             $config->stage = INSTALL_DATABASE;
 414         }
 415     }
 416
 417     // switch the string_manager instance to stop using install/lang/
 418     $CFG->early_install_lang = false;
 419     $CFG->langotherroot      = $CFG->dataroot.'/lang';
 420     $CFG->langlocalroot      = $CFG->dataroot.'/lang';
 421     get_string_manager(true);
 422 }
 423
 424
 425 if ($config->stage == INSTALL_DATABASE) {
 426     $CFG->early_install_lang = false;
 427
 428     $database = moodle_database::get_driver_instance($config->dbtype, 'native');
 429
 430     $sub = '<h3>'.$database->get_name().'</h3>'.$database->get_configuration_help();
 431
 432     install_print_header($config, get_string('database', 'install'), get_string('databasehead', 'install'), $sub);
 433
 434     $strdbhost   = get_string('databasehost', 'install');
 435     $strdbname   = get_string('databasename', 'install');
 436     $strdbuser   = get_string('databaseuser', 'install');
 437     $strdbpass   = get_string('databasepass', 'install');
 438     $strprefix   = get_string('dbprefix', 'install');
 439     $strdbport   = get_string('databaseport', 'install');
 440     $strdbsocket = get_string('databasesocket', 'install');
 441
 442     echo '<div class="userinput">';
 443
 444     $disabled = empty($distro->dbhost) ? '' : 'disabled="disabled';
 445     echo '<div class="fitem"><div class="fitemtitle"><label for="id_dbhost">'.$strdbhost.'</label></div>';
 446     echo '<div class="fitemelement"><input id="id_dbhost" name="dbhost" '.$disabled.' type="text" value="'.s($config->dbhost).'" size="50" /></div>';
 447     echo '</div>';
 448
 449     echo '<div class="fitem"><div class="fitemtitle"><label for="id_dbname">'.$strdbname.'</label></div>';
 450     echo '<div class="fitemelement"><input id="id_dbname" name="dbname" type="text" value="'.s($config->dbname).'" size="50" /></div>';
 451     echo '</div>';
 452
 453     $disabled = empty($distro->dbuser) ? '' : 'disabled="disabled';
 454     echo '<div class="fitem"><div class="fitemtitle"><label for="id_dbuser">'.$strdbuser.'</label></div>';
 455     echo '<div class="fitemelement"><input id="id_dbuser" name="dbuser" '.$disabled.' type="text" value="'.s($config->dbuser).'" size="50" /></div>';
 456     echo '</div>';
 457
 458     echo '<div class="fitem"><div class="fitemtitle"><label for="id_dbpass">'.$strdbpass.'</label></div>';
 459     // no password field here, the password may be visible in config.php if we can not write it to disk
 460     echo '<div class="fitemelement"><input id="id_dbpass" name="dbpass" type="text" value="'.s($config->dbpass).'" size="50" /></div>';
 461     echo '</div>';
 462
 463     echo '<div class="fitem"><div class="fitemtitle"><label for="id_prefix">'.$strprefix.'</label></div>';
 464     echo '<div class="fitemelement"><input id="id_prefix" name="prefix" type="text" value="'.s($config->prefix).'" size="10" /></div>';
 465     echo '</div>';
 466
 467     echo '<div class="fitem"><div class="fitemtitle"><label for="id_prefix">'.$strdbport.'</label></div>';
 468     echo '<div class="fitemelement"><input id="id_dbport" name="dbport" type="text" value="'.s($config->dbport).'" size="10" /></div>';
 469     echo '</div>';
 470
 471     if (!(stristr(PHP_OS, 'win') && !stristr(PHP_OS, 'darwin'))) {
 472         echo '<div class="fitem"><div class="fitemtitle"><label for="id_dbsocket">'.$strdbsocket.'</label></div>';
 473         echo '<div class="fitemelement"><input id="id_dbsocket" name="dbsocket" type="text" value="'.s($config->dbsocket).'" size="50" /></div>';
 474         echo '</div>';
 475     }
 476
 477     if ($hint_database !== '') {
 478         echo '<div class="alert alert-error">'.$hint_database.'</div>';
 479     }
 480     echo '</div>';
 481     install_print_footer($config);
 482     die;
 483 }
 484
 485
 486 if ($config->stage == INSTALL_DATABASETYPE) {
 487     $CFG->early_install_lang = false;
 488
 489     // Finally ask for DB type
 490     install_print_header($config, get_string('database', 'install'),
 491                                   get_string('databasetypehead', 'install'),
 492                                   get_string('databasetypesub', 'install'));
 493
 494     $databases = array('mysqli' => moodle_database::get_driver_instance('mysqli', 'native'),
 495                        'mariadb'=> moodle_database::get_driver_instance('mariadb', 'native'),
 496                        'pgsql'  => moodle_database::get_driver_instance('pgsql',  'native'),
 497                        'oci'    => moodle_database::get_driver_instance('oci',    'native'),
 498                        'sqlsrv' => moodle_database::get_driver_instance('sqlsrv', 'native'), // MS SQL*Server PHP driver
 499                        'mssql'  => moodle_database::get_driver_instance('mssql',  'native'), // FreeTDS driver
 500                       );
 501
 502     echo '<div class="userinput">';
 503     echo '<div class="fitem"><div class="fitemtitle"><label for="dbtype">'.get_string('dbtype', 'install').'</label></div>';
 504     echo '<div class="fitemelement"><select id="dbtype" name="dbtype">';
 505     $disabled = array();
 506     $options = array();
 507     foreach ($databases as $type=>$database) {
 508         if ($database->driver_installed() !== true) {
 509             $disabled[$type] = $database;
 510             continue;
 511         }
 512         echo '<option value="'.s($type).'">'.$database->get_name().'</option>';
 513     }
 514     if ($disabled) {
 515         echo '<optgroup label="'.s(get_string('notavailable')).'">';
 516         foreach ($disabled as $type=>$database) {
 517             echo '<option value="'.s($type).'" class="notavailable">'.$database->get_name().'</option>';
 518         }
 519         echo '</optgroup>';
 520     }
 521     echo '</select></div></div>';
 522     echo '</div>';
 523
 524     install_print_footer($config);
 525     die;
 526 }
 527
 528
 529
 530 if ($config->stage == INSTALL_ENVIRONMENT or $config->stage == INSTALL_PATHS) {
 531     $curl_fail    = ($lang !== 'en' and !extension_loaded('curl')); // needed for lang pack download
 532     $zip_fail     = ($lang !== 'en' and !extension_loaded('zip'));  // needed for lang pack download
 533
 534     if ($curl_fail or $zip_fail) {
 535         $config->stage = INSTALL_ENVIRONMENT;
 536
 537         install_print_header($config, get_string('environmenthead', 'install'),
 538                                       get_string('errorsinenvironment', 'install'),
 539                                       get_string('environmentsub2', 'install'));
 540
 541         echo '<div id="envresult"><dl>';
 542         if ($curl_fail) {
 543             echo '<dt>'.get_string('phpextension', 'install', 'cURL').'</dt><dd>'.get_string('environmentrequireinstall', 'admin').'</dd>';
 544         }
 545         if ($zip_fail) {
 546             echo '<dt>'.get_string('phpextension', 'install', 'Zip').'</dt><dd>'.get_string('environmentrequireinstall', 'admin').'</dd>';
 547         }
 548         echo '</dl></div>';
 549
 550         install_print_footer($config, true);
 551         die;
 552
 553     } else {
 554         $config->stage = INSTALL_PATHS;
 555     }
 556 }
 557
 558
 559
 560 if ($config->stage == INSTALL_PATHS) {
 561     $paths = array('wwwroot'  => get_string('wwwroot', 'install'),
 562                    'dirroot'  => get_string('dirroot', 'install'),
 563                    'dataroot' => get_string('dataroot', 'install'));
 564
 565     $sub = '<dl>';
 566     foreach ($paths as $path=>$name) {
 567         $sub .= '<dt>'.$name.'</dt><dd>'.get_string('pathssub'.$path, 'install').'</dd>';
 568     }
 569     if (!file_exists("$CFG->dirroot/admin/environment.xml")) {
 570         $sub .= '<dt>'.get_string('admindirname', 'install').'</dt><dd>'.get_string('pathssubadmindir', 'install').'</dd>';
 571     }
 572     $sub .= '</dl>';
 573
 574     install_print_header($config, get_string('paths', 'install'), get_string('pathshead', 'install'), $sub);
 575
 576     $strwwwroot      = get_string('wwwroot', 'install');
 577     $strdirroot      = get_string('dirroot', 'install');
 578     $strdataroot     = get_string('dataroot', 'install');
 579     $stradmindirname = get_string('admindirname', 'install');
 580
 581     echo '<div class="userinput">';
 582     echo '<div class="fitem"><div class="fitemtitle"><label for="id_wwwroot">'.$paths['wwwroot'].'</label></div>';
 583     echo '<div class="fitemelement"><input id="id_wwwroot" name="wwwroot" type="text" value="'.s($CFG->wwwroot).'" disabled="disabled" size="70" /></div>';
 584     echo '</div>';
 585
 586     echo '<div class="fitem"><div class="fitemtitle"><label for="id_dirroot">'.$paths['dirroot'].'</label></div>';
 587     echo '<div class="fitemelement"><input id="id_dirroot" name="dirroot" type="text" value="'.s($CFG->dirroot).'" disabled="disabled" size="70" /></div>';
 588     echo '</div>';
 589
 590     echo '<div class="fitem"><div class="fitemtitle"><label for="id_dataroot">'.$paths['dataroot'].'</label></div>';
 591     echo '<div class="fitemelement"><input id="id_dataroot" name="dataroot" type="text" value="'.s($config->dataroot).'" size="70" /></div>';
 592     if ($hint_dataroot !== '') {
 593         echo '<div class="alert alert-error">'.$hint_dataroot.'</div>';
 594     }
 595     echo '</div>';
 596
 597
 598     if (!file_exists("$CFG->dirroot/admin/environment.xml")) {
 599         echo '<div class="fitem"><div class="fitemtitle"><label for="id_admin">'.$paths['admindir'].'</label></div>';
 600         echo '<div class="fitemelement"><input id="id_admin" name="admin" type="text" value="'.s($config->admin).'" size="10" /></div>';
 601         if ($hint_admindir !== '') {
 602             echo '<div class="alert alert-error">'.$hint_admindir.'</div>';
 603         }
 604         echo '</div>';
 605     }
 606
 607     echo '</div>';
 608
 609     install_print_footer($config);
 610     die;
 611 }
 612
 613
 614
 615 $config->stage = INSTALL_WELCOME;
 616
 617 if ($distro) {
 618     ob_start();
 619     include('install/distribution.html');
 620     $sub = ob_get_clean();
 621
 622     install_print_header($config, get_string('language'),
 623                                   get_string('chooselanguagehead', 'install'),
 624                                   $sub, 'alert-success');
 625
 626 } else {
 627     install_print_header($config, get_string('language'),
 628                                   get_string('chooselanguagehead', 'install'),
 629                                   get_string('chooselanguagesub', 'install'));
 630 }
 631
 632 $languages = get_string_manager()->get_list_of_translations();
 633 echo '<div class="userinput">';
 634 echo '<div class="fitem"><div class="fitemtitle"><label for="langselect">'.get_string('language').'</label></div>';
 635 echo '<div class="fitemelement"><select id="langselect" name="lang" onchange="this.form.submit()">';
 636 foreach ($languages as $name=>$value) {
 637     $selected = ($name == $CFG->lang) ? 'selected="selected"' : '';
 638     echo '<option value="'.s($name).'" '.$selected.'>'.$value.'</option>';
 639 }
 640 echo '</select></div></div>';
 641 echo '</div>';
 642
 643 install_print_footer($config);
 644 die;
 645