install.php

   1 <?php /// $Id$
   2       /// install.php - helps admin user to create a config.php file
   3
   4 /// If config.php exists already then we are not needed.
   5
   6 if (file_exists('./config.php')) {
   7     header('Location: index.php');
   8     die;
   9 } else {
  10     $configfile = './config.php';
  11 }
  12
  13 ///==========================================================================//
  14 /// We are doing this in stages
  15 define ('WELCOME',            0); /// 0. Welcome and language settings
  16 define ('COMPATIBILITY',      1); /// 1. Compatibility
  17 define ('DIRECTORY',          2); /// 2. Directory settings
  18 define ('DATABASE',           3); /// 2. Database settings
  19 define ('ADMIN',              4); /// 4. Administration directory name
  20 define ('ENVIRONMENT',        5); /// 5. Administration directory name
  21 define ('DOWNLOADLANG',       6); /// 6. Load complete lang from download.moodle.org
  22 define ('SAVE',               7); /// 7. Save or display the settings
  23 define ('REDIRECT',           8); /// 8. Redirect to index.php
  24 ///==========================================================================//
  25
  26
  27
  28 /// Begin the session as we are holding all information in a session
  29 /// variable until the end.
  30
  31 session_name('MoodleSession');
  32 @session_start();
  33
  34 if (! isset($_SESSION['INSTALL'])) {
  35     $_SESSION['INSTALL'] = array();
  36 }
  37
  38 $INSTALL = &$_SESSION['INSTALL'];   // Makes it easier to reference
  39
  40
  41 /// If it's our first time through this script then we need to set some default values
  42
  43 if ( empty($INSTALL['language']) and empty($_POST['language']) ) {
  44
  45     /// set defaults
  46     $INSTALL['language']        = 'en_utf8';
  47
  48     $INSTALL['dbhost']          = 'localhost';
  49     $INSTALL['dbuser']          = '';
  50     $INSTALL['dbpass']          = '';
  51     $INSTALL['dbtype']          = 'mysql';
  52     $INSTALL['dbname']          = 'moodle';
  53     $INSTALL['prefix']          = 'mdl_';
  54
  55     $INSTALL['dbencodingtestresults']  = false;
  56     $INSTALL['showskipdbencodingtest'] = false;
  57     $INSTALL['skipdbencodingtest']     = false;
  58
  59     $INSTALL['downloadlangpack']       = false;
  60     $INSTALL['showdownloadlangpack']   = true;
  61     $INSTALL['downloadlangpackerror']  = '';
  62
  63 /// To be used by the Installer
  64     $INSTALL['wwwroot']         = '';
  65     $INSTALL['dirroot']         = dirname(__FILE__);
  66     $INSTALL['dataroot']        = dirname(dirname(__FILE__)) . '/moodledata';
  67
  68 /// To be configured in the Installer
  69     $INSTALL['wwwrootform']         = '';
  70     $INSTALL['dirrootform']         = dirname(__FILE__);
  71
  72     $INSTALL['admindirname']    = 'admin';
  73
  74     $INSTALL['stage'] = WELCOME;
  75 }
  76
  77 //==========================================================================//
  78
  79 /// Set the page to Unicode always
  80
  81 header('Content-Type: text/html; charset=UTF-8');
  82
  83 /// Was data submitted?
  84
  85 if (isset($_POST['stage'])) {
  86
  87     /// Get the stage for which the form was set and the next stage we are going to
  88
  89
  90     if ( $goforward = (! empty( $_POST['next'] )) ) {
  91         $nextstage = $_POST['stage'] + 1;
  92     } else if (! empty( $_POST['prev'])) {
  93         $nextstage = $_POST['stage'] - 1;
  94     } else if (! empty( $_POST['same'] )) {
  95         $nextstage = $_POST['stage'];
  96     }
  97
  98
  99     if ($nextstage < 0) $nextstage = WELCOME;
 100
 101
 102     /// Store any posted data
 103     foreach ($_POST as $setting=>$value) {
 104         $INSTALL[$setting] = $value;
 105     }
 106
 107 } else {
 108
 109     $goforward = true;
 110     $nextstage = WELCOME;
 111
 112 }
 113
 114 //==========================================================================//
 115
 116 /// Fake some settings so that we can use selected functions from moodlelib.php and weblib.php
 117
 118 $SESSION->lang = (!empty($_POST['language'])) ? $_POST['language'] : $INSTALL['language'];
 119 $CFG->dirroot = $INSTALL['dirroot'];
 120 $CFG->libdir = $INSTALL['dirroot'].'/lib';
 121 $CFG->dataroot = $INSTALL['dataroot'];
 122 $CFG->admin = $INSTALL['admindirname'];
 123 $CFG->directorypermissions = 00777;
 124 $CFG->running_installer = true;
 125
 126 /// Include some moodle libraries
 127
 128 require_once('./lib/adminlib.php');
 129 require_once('./lib/setuplib.php');
 130 require_once('./lib/moodlelib.php');
 131 require_once('./lib/weblib.php');
 132 require_once('./lib/adodb/adodb.inc.php');
 133 require_once('./lib/environmentlib.php');
 134 require_once('./lib/xmlize.php');
 135 require_once('./lib/componentlib.class.php');
 136 require_once('./version.php');
 137
 138 /// Set version and release
 139 $INSTALL['version'] = $version;
 140 $INSTALL['release'] = $release;
 141
 142 /// Have the $db object ready because we are going to use it often
 143 $db = &ADONewConnection($INSTALL['dbtype']);
 144
 145 /// guess the www root
 146 if ($INSTALL['wwwroot'] == '') {
 147     list($INSTALL['wwwroot'], $xtra) = explode('/install.php', qualified_me());
 148     $INSTALL['wwwrootform'] = $INSTALL['wwwroot'];
 149
 150     // now try to guess the correct dataroot not accessible via web
 151     $CFG->wwwroot = $INSTALL['wwwroot'];
 152     $i = 0; //safety check - dirname might return some unexpected results
 153     while(is_dataroot_insecure()) {
 154         $parrent = dirname($CFG->dataroot);
 155         $i++;
 156         if ($parrent == '/' or $parrent == '.' or preg_match('/^[a-z]:\\\?$/i', $parrent) or ($i > 100)) {
 157             $CFG->dataroot = ''; //can not find secure location for dataroot
 158             break;
 159         }
 160         $CFG->dataroot = dirname($parrent).'/moodledata';
 161     }
 162     $INSTALL['dataroot'] = $CFG->dataroot;
 163 }
 164
 165 $headstagetext = array(WELCOME       => get_string('chooselanguagehead', 'install'),
 166                        COMPATIBILITY => get_string('compatibilitysettingshead', 'install'),
 167                        DIRECTORY     => get_string('directorysettingshead', 'install'),
 168                        DATABASE      => get_string('databasesettingshead', 'install'),
 169                        ADMIN         => get_string('admindirsettinghead', 'install'),
 170                        ENVIRONMENT   => get_string('environmenthead', 'install'),
 171                        DOWNLOADLANG  => get_string('downloadlanguagehead', 'install'),
 172                        SAVE          => get_string('configurationcompletehead', 'install')
 173                         );
 174
 175 $substagetext = array(WELCOME       => get_string('chooselanguagesub', 'install'),
 176                       COMPATIBILITY => get_string('compatibilitysettingssub', 'install'),
 177                       DIRECTORY     => get_string('directorysettingssub', 'install'),
 178                       DATABASE      => get_string('databasesettingssub', 'install'),
 179                       ADMIN         => get_string('admindirsettingsub', 'install'),
 180                       ENVIRONMENT   => get_string('environmentsub', 'install'),
 181                       DOWNLOADLANG  => get_string('downloadlanguagesub', 'install'),
 182                       SAVE          => get_string('configurationcompletesub', 'install')
 183                        );
 184
 185
 186
 187 //==========================================================================//
 188
 189 /// Are we in help mode?
 190
 191 if (isset($_GET['help'])) {
 192     $nextstage = -1;
 193 }
 194
 195
 196
 197 //==========================================================================//
 198
 199 /// Are we in config download mode?
 200
 201 if (isset($_GET['download'])) {
 202     header("Content-Type: application/download\n");
 203     header("Content-Disposition: attachment; filename=\"config.php\"");
 204     echo $INSTALL['config'];
 205     exit;
 206 }
 207
 208
 209
 210
 211
 212 //==========================================================================//
 213
 214 /// Check the directory settings
 215
 216 if ($INSTALL['stage'] == DIRECTORY) {
 217
 218     error_reporting(0);
 219
 220     /// check wwwroot
 221     if (ini_get('allow_url_fopen')) {
 222         if (($fh = @fopen($INSTALL['wwwrootform'].'/install.php', 'r')) === false) {
 223             $errormsg .= get_string('wwwrooterror', 'install').'<br />';
 224             $INSTALL['wwwrootform'] = $INSTALL['wwwroot'];
 225         }
 226     }
 227     if ($fh) fclose($fh);
 228
 229     /// check dirroot
 230     if (($fh = @fopen($INSTALL['dirrootform'].'/install.php', 'r')) === false ) {
 231         $errormsg .= get_string('dirrooterror', 'install').'<br />';
 232         $INSTALL['dirrootform'] = $INSTALL['dirroot'];
 233     }
 234     if ($fh) fclose($fh);
 235
 236     /// check dataroot
 237     $CFG->dataroot = $INSTALL['dataroot'];
 238     if (make_upload_directory('sessions', false) === false ) {
 239         $errormsg .= get_string('datarooterror', 'install').'<br />';
 240     }
 241     if ($fh) fclose($fh);
 242
 243     if (!empty($errormsg)) $nextstage = DIRECTORY;
 244
 245     error_reporting(7);
 246 }
 247
 248
 249
 250 //==========================================================================//
 251
 252 /// Check database settings if stage 3 data submitted
 253 /// Try to connect to the database. If that fails then try to create the database
 254
 255 if ($INSTALL['stage'] == DATABASE) {
 256
 257     /// First of all, analyze skipdbencodingtest status
 258      if (isset($_POST['skipdbencodingtest'])) {
 259          $INSTALL['skipdbencodingtest'] = true;
 260      } else {
 261          $INSTALL['skipdbencodingtest'] = false;
 262      }
 263
 264     /// different format for postgres7 by socket
 265     if ($INSTALL['dbtype'] == 'postgres7' and ($INSTALL['dbhost'] == 'localhost' || $INSTALL['dbhost'] == '127.0.0.1')) {
 266         $INSTALL['dbhost'] = "user='{$INSTALL['dbuser']}' password='{$INSTALL['dbpass']}' dbname='{$INSTALL['dbname']}'";
 267         $INSTALL['dbuser'] = '';
 268         $INSTALL['dbpass'] = '';
 269         $INSTALL['dbname'] = '';
 270
 271         if ($INSTALL['prefix'] == '') { /// must have a prefix
 272             $INSTALL['prefix'] = 'mdl_';
 273         }
 274     }
 275
 276     if ($INSTALL['dbtype'] == 'mysql') {  /// Check MySQL extension is present
 277         if (!extension_loaded('mysql')) {
 278             $errormsg = get_string('mysqlextensionisnotpresentinphp', 'install');
 279             $nextstage = DATABASE;
 280         }
 281     }
 282
 283     if (empty($errormsg)) {
 284
 285         error_reporting(0);  // Hide errors
 286
 287         if (! $dbconnected = $db->Connect($INSTALL['dbhost'],$INSTALL['dbuser'],$INSTALL['dbpass'],$INSTALL['dbname'])) {
 288             /// The following doesn't seem to work but we're working on it
 289             /// If you come up with a solution for creating a database in MySQL
 290             /// feel free to put it in and let us know
 291             if ($dbconnected = $db->Connect($INSTALL['dbhost'],$INSTALL['dbuser'],$INSTALL['dbpass'])) {
 292                 switch ($INSTALL['dbtype']) {   /// Try to create a database
 293                     case 'mysql':
 294                         if ($db->Execute("CREATE DATABASE {$INSTALL['dbname']};")) {
 295                             $dbconnected = $db->Connect($INSTALL['dbhost'],$INSTALL['dbuser'],$INSTALL['dbpass'],$INSTALL['dbname']);
 296                         } else {
 297                             $errormsg = get_string('dbcreationerror', 'install');
 298                             $nextstage = DATABASE;
 299                         }
 300                         break;
 301                 }
 302             }
 303         } else {
 304         /// We have been able to connect properly, just test the database encoding now. It should be Unicode for 1.6
 305         /// installations (although not mandatory for now). Just show one message about it and allow to skip this test.
 306             if (empty($INSTALL['skipdbencodingtest'])) {
 307             /// We haven't checked the skip test checkbox, so perform the test
 308                 $encoding = '';
 309                 switch ($INSTALL['dbtype']) {
 310                     case 'mysql':
 311                     ///Get MySQL character_set_database value
 312                         $rs = $db->Execute("SHOW VARIABLES LIKE 'character_set_database'");
 313                         if ($rs && $rs->RecordCount() > 0) {
 314                             $records = $rs->GetAssoc(true);
 315                             $encoding = $records['character_set_database']['Value'];
 316                             if (strtoupper($encoding) == 'UTF8') {
 317                                 $INSTALL['dbencodingtestresults'] = true;
 318                             } else {
 319                                 // Try to set the encoding now!
 320                                 if (! $db->Metatables()) {  // We have no tables so go ahead
 321                                     $db->Execute("ALTER DATABASE `".$INSTALL['dbname']."` DEFAULT CHARACTER SET utf8 COLLATE utf8_unicode_ci");
 322                                     $rs = $db->Execute("SHOW VARIABLES LIKE 'character_set_database'");  // this works
 323
 324                                     $records = $rs->GetAssoc(true);
 325                                     $encoding = $records['character_set_database']['Value'];
 326
 327                                     if (strtoupper($encoding) == 'UTF8') {
 328                                         $INSTALL['dbencodingtestresults'] = true;
 329                                     } else {
 330                                         $errormsg = get_string('dbwrongencoding', 'install', $encoding);
 331                                         $nextstage = DATABASE;
 332                                         $INSTALL['showskipdbencodingtest'] = true;
 333                                         $INSTALL['dbencodingtestresults'] = false;
 334                                     }
 335                                 } else {
 336                                     $INSTALL['showskipdbencodingtest'] = true;
 337                                     $INSTALL['dbencodingtestresults'] = false;
 338                                 }
 339                             }
 340                         }
 341                         break;
 342                     case 'postgres7':
 343                     ///Get PostgreSQL server_encoding value
 344                         $rs = $db->Execute("SHOW server_encoding");
 345                         if ($rs && $rs->RecordCount() > 0) {
 346                             $encoding = $rs->fields['server_encoding'];
 347                             if (strtoupper($encoding) != 'UNICODE' && strtoupper($encoding) != 'UTF8') {
 348                                 $errormsg = get_string('dbwrongencoding', 'install', $encoding);
 349                                 $nextstage = DATABASE;
 350                                 $INSTALL['showskipdbencodingtest'] = true;
 351                                 $INSTALL['dbencodingtestresults'] = false;
 352                             } else {
 353                                 $INSTALL['dbencodingtestresults'] = true;
 354                             }
 355                         }
 356                         break;
 357                 }
 358             }
 359         }
 360     }
 361
 362     error_reporting(7);
 363
 364     if (($dbconnected === false) and (empty($errormsg)) ) {
 365         $errormsg = get_string('dbconnectionerror', 'install');
 366         $nextstage = DATABASE;
 367     }
 368 }
 369
 370
 371
 372 //==========================================================================//
 373
 374 /// If the next stage is admin directory settings OR we have just come from there then
 375 /// check the admin directory.
 376 /// If we can open a file then we know that the admin name is correct.
 377
 378 if ($nextstage == ADMIN or $INSTALL['stage'] == ADMIN) {
 379     if (!ini_get('allow_url_fopen')) {
 380         $nextstage = ($goforward) ? ENVIRONMENT : DATABASE;
 381     } else if (($fh = @fopen($INSTALL['wwwrootform'].'/'.$INSTALL['admindirname'].'/site.html', 'r')) !== false) {
 382         $nextstage = ($goforward) ? ENVIRONMENT : DATABASE;
 383         fclose($fh);
 384     } else {
 385         if ($nextstage != ADMIN) {
 386             $errormsg = get_string('admindirerror', 'install');
 387             $nextstage = ADMIN;
 388         }
 389     }
 390 }
 391
 392 //==========================================================================//
 393
 394 // Check if we can navigate from the environemt page (because it's ok)
 395
 396 if ($INSTALL['stage'] == ENVIRONMENT) {
 397     error_reporting(0);  // Hide errors
 398     $dbconnected = $db->Connect($INSTALL['dbhost'],$INSTALL['dbuser'],$INSTALL['dbpass'],$INSTALL['dbname']);
 399     error_reporting(7);  // Show errors
 400     if ($dbconnected) {
 401     /// Execute environment check, printing results
 402         if (!check_moodle_environment($INSTALL['release'], $environment_results, false)) {
 403              $nextstage = ENVIRONMENT;
 404         }
 405     } else {
 406     /// We never should reach this because DB has been tested before arriving here
 407         $errormsg = get_string('dbconnectionerror', 'install');
 408         $nextstage = DATABASE;
 409     }
 410 }
 411
 412
 413
 414 //==========================================================================//
 415
 416 // Try to download the lang pack if it has been selected
 417
 418 if ($INSTALL['stage'] == DOWNLOADLANG && $INSTALL['downloadlangpack']) {
 419
 420     $downloadsuccess = false;
 421     $downloaderror = '';
 422
 423     error_reporting(0);  // Hide errors
 424
 425 /// Create necessary lang dir
 426     if (!make_upload_directory('lang', false)) {
 427         $downloaderror = get_string('cannotcreatelangdir', 'error');
 428     }
 429
 430 /// Download and install component
 431     if (($cd = new component_installer('http://download.moodle.org', 'lang16',
 432         $INSTALL['language'].'.zip', 'languages.md5', 'lang')) && empty($errormsg)) {
 433         $status = $cd->install(); //returns ERROR | UPTODATE | INSTALLED
 434         switch ($status) {
 435             case ERROR:
 436                 if ($cd->get_error() == 'remotedownloadnotallowed') {
 437                     $a = new stdClass();
 438                     $a->url = 'http://download.moodle.org/lang16/'.$pack.'zip';
 439                     $a->dest= $CFG->dataroot.'/lang';
 440                     $downloaderror = get_string($cd->get_error(), 'error', $a);
 441                 } else {
 442                     $downloaderror = get_string($cd->get_error(), 'error');
 443                 }
 444             break;
 445             case UPTODATE:
 446             case INSTALLED:
 447                 $downloadsuccess = true;
 448             break;
 449             default:
 450                 //We shouldn't reach this point
 451         }
 452     } else {
 453         //We shouldn't reach this point
 454     }
 455
 456     error_reporting(7);  // Show errors
 457
 458     if ($downloadsuccess) {
 459         $INSTALL['downloadlangpack']       = false;
 460         $INSTALL['showdownloadlangpack']   = false;
 461         $INSTALL['downloadlangpackerror']  = $downloaderror;
 462     } else {
 463         $INSTALL['downloadlangpack']       = false;
 464         $INSTALL['showdownloadlangpack']   = false;
 465         $INSTALL['downloadlangpackerror']  = $downloaderror;
 466     }
 467 }
 468
 469
 470
 471 //==========================================================================//
 472
 473 /// Display or print the data
 474 /// Put the data into a string
 475 /// Try to open config file for writing.
 476
 477 if ($nextstage == SAVE) {
 478
 479     $str  = '<?php  /// Moodle Configuration File '."\r\n";
 480     $str .= "\r\n";
 481
 482     $str .= 'unset($CFG);'."\r\n";
 483     $str .= "\r\n";
 484
 485     $str .= '$CFG->dbtype    = \''.$INSTALL['dbtype']."';\r\n";
 486     $str .= '$CFG->dbhost    = \''.addslashes($INSTALL['dbhost'])."';\r\n";
 487     if (!empty($INSTALL['dbname'])) {
 488         $str .= '$CFG->dbname    = \''.$INSTALL['dbname']."';\r\n";
 489         $str .= '$CFG->dbuser    = \''.$INSTALL['dbuser']."';\r\n";
 490         $str .= '$CFG->dbpass    = \''.$INSTALL['dbpass']."';\r\n";
 491     }
 492     $str .= '$CFG->dbpersist =  false;'."\r\n";
 493     $str .= '$CFG->prefix    = \''.$INSTALL['prefix']."';\r\n";
 494     $str .= "\r\n";
 495
 496     $str .= '$CFG->wwwroot   = \''.s($INSTALL['wwwrootform'],true)."';\r\n";
 497     $str .= '$CFG->dirroot   = \''.s($INSTALL['dirrootform'],true)."';\r\n";
 498     $str .= '$CFG->dataroot  = \''.s($INSTALL['dataroot'],true)."';\r\n";
 499     $str .= '$CFG->admin     = \''.s($INSTALL['admindirname'],true)."';\r\n";
 500     $str .= "\r\n";
 501
 502     $str .= '$CFG->directorypermissions = 00777;  // try 02777 on a server in Safe Mode'."\r\n";
 503     $str .= "\r\n";
 504
 505     if (!$INSTALL['skipdbencodingtest'] && $INSTALL['dbencodingtestresults']) {
 506         $str .= '$CFG->unicodedb = true;  // Database is utf8'."\r\n";
 507         $str .= "\r\n";
 508     }
 509
 510     $str .= 'require_once("$CFG->dirroot/lib/setup.php");'."\r\n";
 511     $str .= '// MAKE SURE WHEN YOU EDIT THIS FILE THAT THERE ARE NO SPACES, BLANK LINES,'."\r\n";
 512     $str .= '// RETURNS, OR ANYTHING ELSE AFTER THE TWO CHARACTERS ON THE NEXT LINE.'."\r\n";
 513     $str .= '?>';
 514
 515     umask(0137);
 516
 517     if (( $configsuccess = ($fh = @fopen($configfile, 'w')) ) !== false) {
 518         fwrite($fh, $str);
 519         fclose($fh);
 520     }
 521
 522
 523     $INSTALL['config'] = $str;
 524 }
 525
 526
 527
 528 //==========================================================================//
 529
 530 ?>
 531 <html dir="<?php echo (get_string('this_direction') == 'rtl') ? 'rtl' : 'ltr' ?>">
 532 <head>
 533 <link rel="shortcut icon" href="theme/standard/favicon.ico" />
 534 <title>Moodle Install</title>
 535 <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
 536 <?php css_styles() ?>
 537
 538 </head>
 539
 540 <body>
 541
 542
 543 <?php
 544 if (isset($_GET['help'])) {
 545     print_install_help($_GET['help']);
 546     close_window_button();
 547 } else {
 548 ?>
 549
 550
 551 <table class="main" align="center" cellpadding="3" cellspacing="0">
 552     <tr>
 553         <td class="td_mainlogo">
 554             <p class="p_mainlogo"><img src="pix/moodlelogo-med.gif" width="240" height="60" alt="Moodle logo"></p>
 555         </td>
 556         <td class="td_mainlogo" valign="bottom">
 557             <p class="p_mainheader"><?php print_string('installation', 'install') ?></p>
 558         </td>
 559     </tr>
 560
 561     <tr>
 562         <td class="td_mainheading" colspan="2">
 563             <p class="p_mainheading"><?php echo $headstagetext[$nextstage] ?></p>
 564             <?php if (!empty($substagetext[$nextstage])) { ?>
 565             <p class="p_subheading"><?php echo $substagetext[$nextstage] ?></p>
 566             <?php } ?>
 567         </td>
 568     </tr>
 569
 570     <tr>
 571         <td class="td_main" colspan="2">
 572
 573 <?php
 574
 575 if (!empty($errormsg)) echo "<p class=\"errormsg\" align=\"center\">$errormsg</p>\n";
 576
 577
 578 if ($nextstage == SAVE) {
 579     $INSTALL['stage'] = WELCOME;
 580     $options = array();
 581     $options['lang'] = $INSTALL['language'];
 582     if ($configsuccess) {
 583         echo "<p>".get_string('configfilewritten', 'install')."</p>\n";
 584
 585         echo "<table cellspacing=\"0\" cellpadding=\"0\" border=\"0\" width=\"100%\">\n";
 586         echo "<tr>\n";
 587         echo "<td width=\"33.3%\">&nbsp;</td>\n";
 588         echo "<td width=\"33.3%\">&nbsp;</td>\n";
 589         echo "<td width=\"33.3%\" align=\"right\">\n";
 590         print_single_button("index.php", $options, get_string('continue')."  &raquo;");
 591         echo "</td>\n";
 592         echo "</tr>\n";
 593         echo "</table>\n";
 594
 595     } else {
 596         echo "<p class=\"errormsg\">".get_string('configfilenotwritten', 'install')."</p>";
 597
 598         echo "<table cellspacing=\"0\" cellpadding=\"0\" border=\"0\" width=\"100%\">\n";
 599         echo "<tr>\n";
 600         echo "<td width=\"33.3%\">&nbsp;</td>\n";
 601         echo "<td width=\"33.3%\" align=\"center\">\n";
 602         $installoptions = array();
 603         $installoptions['download'] = 1;
 604         print_single_button("install.php", $installoptions, get_string('download', 'install'));
 605         echo "</td>\n";
 606         echo "<td width=\"33.3%\" align=\"right\">\n";
 607         print_single_button("index.php", $options, get_string('continue')."  &raquo;");
 608         echo "</td>\n";
 609         echo "</tr>\n";
 610         echo "</table>\n";
 611
 612         echo "<hr />\n";
 613         echo "<div style=\"text-align: left\">\n";
 614         print_object(s($str));
 615         echo "</div>\n";
 616     }
 617 } else {
 618     $formaction = (isset($_GET['configfile'])) ? "install.php?configfile=".$_GET['configfile'] : "install.php";
 619     form_table($nextstage, $formaction);
 620 }
 621
 622 ?>
 623
 624         </td>
 625     </tr>
 626 </table>
 627
 628 <?php
 629 }
 630 ?>
 631
 632 </body>
 633 </html>
 634
 635
 636
 637
 638
 639
 640
 641
 642
 643
 644 <?php
 645
 646 //==========================================================================//
 647
 648
 649 function print_object($object) {
 650     echo "<pre>\n";
 651     print_r($object);
 652     echo "</pre>\n";
 653 }
 654
 655
 656
 657 //==========================================================================//
 658
 659 function form_table($nextstage = WELCOME, $formaction = "install.php") {
 660     global $INSTALL, $db;
 661
 662     /// Print the standard form if we aren't in the DOWNLOADLANG page
 663     /// because it has its own form.
 664     if ($nextstage != DOWNLOADLANG) {
 665         $needtoopenform = false;
 666 ?>
 667         <form name="installform" method="post" action="<?php echo $formaction ?>">
 668         <input type="hidden" name="stage" value="<?php echo $nextstage ?>" />
 669
 670 <?php
 671     } else {
 672         $needtoopenform = true;
 673     }
 674 ?>
 675     <table class="install_table" cellspacing="3" cellpadding="3" align="center">
 676
 677 <?php
 678     /// what we do depends on the stage we're at
 679     switch ($nextstage) {
 680         case WELCOME: /// Welcome and language settings
 681 ?>
 682             <tr>
 683                 <td class="td_left"><p><?php print_string('language') ?></p></td>
 684                 <td class="td_right">
 685                 <?php choose_from_menu (get_installer_list_of_languages(), 'language', $INSTALL['language'], '') ?>
 686                 </td>
 687             </tr>
 688
 689 <?php
 690             break;
 691         case COMPATIBILITY: /// Compatibilty check
 692             $compatsuccess = true;
 693
 694             /// Check that PHP is of a sufficient version
 695             print_compatibility_row(inst_check_php_version(), get_string('phpversion', 'install'), get_string('phpversionerror', 'install'), 'phpversionhelp');
 696             /// Check session auto start
 697             print_compatibility_row(!ini_get_bool('session.auto_start'), get_string('sessionautostart', 'install'), get_string('sessionautostarterror', 'install'), 'sessionautostarthelp');
 698             /// Check magic quotes
 699             print_compatibility_row(!ini_get_bool('magic_quotes_runtime'), get_string('magicquotesruntime', 'install'), get_string('magicquotesruntimeerror', 'install'), 'magicquotesruntimehelp');
 700             /// Check unsupported PHP configuration
 701             print_compatibility_row(ini_get_bool('magic_quotes_gpc') || (!ini_get_bool('register_globals')), get_string('globalsquotes', 'install'), get_string('globalsquoteserror', 'install'), 'globalsquoteshelp');
 702             /// Check safe mode
 703             print_compatibility_row(!ini_get_bool('safe_mode'), get_string('safemode', 'install'), get_string('safemodeerror', 'install'), 'safemodehelp', true);
 704             /// Check file uploads
 705             print_compatibility_row(ini_get_bool('file_uploads'), get_string('fileuploads', 'install'), get_string('fileuploadserror', 'install'), 'fileuploadshelp', true);
 706             /// Check GD version
 707             print_compatibility_row(check_gd_version(), get_string('gdversion', 'install'), get_string('gdversionerror', 'install'), 'gdversionhelp', true);
 708             /// Check memory limit
 709             print_compatibility_row(check_memory_limit(), get_string('memorylimit', 'install'), get_string('memorylimiterror', 'install'), 'memorylimithelp', true);
 710
 711
 712             break;
 713         case DIRECTORY: /// Directory settings
 714 ?>
 715
 716             <tr>
 717                 <td class="td_left"><p><?php print_string('wwwroot', 'install') ?></p></td>
 718                 <td class="td_right">
 719                     <input type="text" size="40"name="wwwrootform" value="<?php p($INSTALL['wwwrootform'],true) ?>" />
 720                 </td>
 721             </tr>
 722             <tr>
 723                 <td class="td_left"><p><?php print_string('dirroot', 'install') ?></p></td>
 724                 <td class="td_right">
 725                     <input type="text" size="40" name="dirrootform" value="<?php p($INSTALL['dirrootform'],true) ?>" />
 726                 </td>
 727             </tr>
 728             <tr>
 729                 <td class="td_left"><p><?php print_string('dataroot', 'install') ?></p></td>
 730                 <td class="td_right">
 731                     <input type="text" size="40" name="dataroot" value="<?php p($INSTALL['dataroot'],true) ?>" />
 732                 </td>
 733             </tr>
 734
 735 <?php
 736             break;
 737         case DATABASE: /// Database settings
 738 ?>
 739
 740             <tr>
 741                 <td class="td_left"><p><?php print_string('dbtype', 'install') ?></p></td>
 742                 <td class="td_right">
 743                 <?php choose_from_menu (array("mysql" => "mysql", "postgres7" => "postgres7"), 'dbtype', $INSTALL['dbtype'], '') ?>
 744                 </td>
 745             </tr>
 746             <tr>
 747                 <td class="td_left"><p><?php print_string('dbhost', 'install') ?></p></td>
 748                 <td class="td_right">
 749                     <input type="text" size="40" name="dbhost" value="<?php echo $INSTALL['dbhost'] ?>" />
 750                 </td>
 751             </tr>
 752             <tr>
 753                 <td class="td_left"><p><?php print_string('database', 'install') ?></p></td>
 754                 <td class="td_right">
 755                     <input type="text" size="40" name="dbname" value="<?php echo $INSTALL['dbname'] ?>" />
 756                 </td>
 757             </tr>
 758             <tr>
 759                 <td class="td_left"><p><?php print_string('user') ?></p></td>
 760                 <td class="td_right">
 761                     <input type="text" size="40" name="dbuser" value="<?php echo $INSTALL['dbuser'] ?>" />
 762                 </td>
 763             </tr>
 764             <tr>
 765                 <td class="td_left"><p><?php print_string('password') ?></p></td>
 766                 <td class="td_right">
 767                     <input type="password" size="40" name="dbpass" value="<?php echo $INSTALL['dbpass'] ?>" />
 768                 </td>
 769             </tr>
 770             <tr>
 771                 <td class="td_left"><p><?php print_string('dbprefix', 'install') ?></p></td>
 772                 <td class="td_right">
 773                     <input type="text" size="40" name="prefix" value="<?php echo $INSTALL['prefix'] ?>" />
 774                 </td>
 775             </tr>
 776             <?php if ($INSTALL['showskipdbencodingtest']) { ?>
 777             <tr>
 778                 <td class="td_left" colspan="2">
 779                     <?php print_checkbox ('skipdbencodingtest', '1', $INSTALL['skipdbencodingtest'], get_string('skipdbencodingtest', 'install')) ?>
 780                 </td>
 781             </tr>
 782             <?php } ?>
 783
 784 <?php
 785             break;
 786         case ADMIN: /// Administration directory setting
 787 ?>
 788
 789             <tr>
 790                 <td class="td_left"><p><?php print_string('admindirname', 'install') ?></p></td>
 791                 <td class="td_right">
 792                     <input type="text" size="40" name="admindirname" value="<?php echo $INSTALL['admindirname'] ?>" />
 793                 </td>
 794             </tr>
 795
 796
 797 <?php
 798             break;
 799         case ENVIRONMENT: /// Environment checks
 800 ?>
 801
 802             <tr>
 803                 <td colspan="2">
 804                 <?php
 805                     error_reporting(0);  // Hide errors
 806                     $dbconnected = $db->Connect($INSTALL['dbhost'],$INSTALL['dbuser'],$INSTALL['dbpass'],$INSTALL['dbname']);
 807                     error_reporting(7);  // Show errors
 808                     if ($dbconnected) {
 809                     /// Execute environment check, printing results
 810                         check_moodle_environment($INSTALL['release'], $environment_results, true);
 811                     } else {
 812                     /// We never should reach this because DB has been tested before arriving here
 813                         $errormsg = get_string('dbconnectionerror', 'install');
 814                         $nextstage = DATABASE;
 815                         echo '<p class="errormsg" align="center">'.get_string('dbconnectionerror', 'install').'</p>';
 816                     }
 817                 ?>
 818                 </td>
 819             </tr>
 820
 821 <?php
 822             break;
 823         case DOWNLOADLANG: /// Download language from download.moodle.org
 824 ?>
 825
 826             <tr>
 827                 <td colspan="2">
 828                 <?php
 829                 /// Get array of languages, we are going to use it
 830                     $languages=get_installer_list_of_languages();
 831                 /// Print the download form (button) if necessary
 832                     if ($INSTALL['showdownloadlangpack'] == true && substr($INSTALL['language'],0,2) != 'en') {
 833                         $options = array();
 834                         $options['downloadlangpack'] = true;
 835                         $options['stage'] = DOWNLOADLANG;
 836                         $options['same'] = true;
 837                         print_simple_box_start('center');
 838                         print_single_button('install.php', $options, get_string('downloadlanguagebutton','install', $languages[$INSTALL['language']]), 'POST');
 839                         print_simple_box_end();
 840                     } else {
 841                 /// Show result info
 842                     /// English lang packs aren't downloaded
 843                         if (substr($INSTALL['language'],0,2) == 'en') {
 844                             print_simple_box(get_string('downloadlanguagenotneeded', 'install', $languages[$INSTALL['language']]), 'center', '80%');
 845                         } else {
 846                             if ($INSTALL['downloadlangpackerror']) {
 847                                 echo "<p class=\"errormsg\" align=\"center\">".$INSTALL['downloadlangpackerror']."</p>\n";
 848                                 print_simple_box(get_string('langdownloaderror', 'install', $languages[$INSTALL['language']]), 'center', '80%');
 849                             } else {
 850                                 print_simple_box(get_string('langdownloadok', 'install', $languages[$INSTALL['language']]), 'center', '80%');
 851                             }
 852                         }
 853                     }
 854                 ?>
 855                 </td>
 856             </tr>
 857
 858 <?php
 859             break;
 860         default:
 861     }
 862 ?>
 863
 864     <tr>
 865         <td colspan="<?php echo ($nextstage == COMPATIBILITY) ? 3 : 2; ?>">
 866
 867 <?php
 868     if ($needtoopenform) {
 869 ?>
 870             <form name="installform" method="post" action="<?php echo $formaction ?>">
 871             <input type="hidden" name="stage" value="<?php echo $nextstage ?>" />
 872 <?php
 873     }
 874 ?>
 875
 876             <?php echo ($nextstage < SAVE) ? "<input type=\"submit\" name=\"next\" value=\"".get_string('next')."  &raquo;\" style=\"float: right\"/>\n" : "&nbsp;\n" ?>
 877             <?php echo ($nextstage > WELCOME) ? "<input type=\"submit\" name=\"prev\" value=\"&laquo;  ".get_string('previous')."\" style=\"float: left\"/>\n" : "&nbsp;\n" ?>
 878
 879 <?php
 880     if ($needtoopenform) {
 881 ?>
 882             </form>
 883 <?php
 884     }
 885 ?>
 886
 887
 888         </td>
 889
 890     </tr>
 891
 892     </table>
 893 <?php
 894     if (!$needtoopenform) {
 895 ?>
 896     </form>
 897 <?php
 898     }
 899 ?>
 900
 901 <?php
 902 }
 903
 904
 905
 906 //==========================================================================//
 907
 908 function print_compatibility_row($success, $testtext, $errormessage, $helpfield='', $caution=false) {
 909     echo "<tr>\n";
 910     echo "<td class=\"td_left\" valign=\"top\" nowrap width=\"160\"><p>$testtext</p></td>\n";
 911     if ($success) {
 912         echo "<td valign=\"top\"><p class=\"p_pass\">".get_string('pass', 'install')."</p></td>\n";
 913         echo "<td valign=\"top\">&nbsp;</td>\n";
 914     } else {
 915         echo "<td valign=\"top\"";
 916         echo ($caution) ? "<p class=\"p_caution\">".get_string('caution', 'install') : "<p class=\"p_fail\">".get_string('fail', 'install');
 917         echo "</p></td>\n";
 918         echo "<td valign=\"top\">";
 919         echo "<p>$errormessage ";
 920         install_helpbutton("install.php?help=$helpfield");
 921         echo "</p></td>\n";
 922     }
 923     echo "</tr>\n";
 924     return $success;
 925 }
 926
 927
 928 //==========================================================================//
 929
 930 function install_helpbutton($url, $title='') {
 931     if ($title == '') {
 932         $title = get_string('help');
 933     }
 934     echo "<a href=\"javascript: void(0)\">";
 935     echo "<img src=\"./pix/help.gif\" height=\"17\" width=\"17\" alt=\"$title\"";
 936     echo "border=\"0\" align=\"middle\" title=\"$title\" ";
 937     echo "onClick=\"return window.open('$url', 'Help', 'menubar=0,location=0,scrollbars,resizable,width=500,height=400')\">";
 938     echo "</a>\n";
 939 }
 940
 941
 942
 943 //==========================================================================//
 944
 945 function print_install_help($help) {
 946     switch ($help) {
 947         case 'phpversionhelp':
 948             print_string($help, 'install', phpversion());
 949             break;
 950         case 'memorylimithelp':
 951             print_string($help, 'install', get_memory_limit());
 952             break;
 953         default:
 954             print_string($help, 'install');
 955     }
 956 }
 957
 958
 959 //==========================================================================//
 960
 961 function get_memory_limit() {
 962     if ($limit = ini_get('memory_limit')) {
 963         return $limit;
 964     } else {
 965         return get_cfg_var('memory_limit');
 966     }
 967 }
 968
 969 //==========================================================================//
 970
 971 function check_memory_limit() {
 972
 973     /// if limit is already 16M or more then we don't care if we can change it or not
 974     if ((int)str_replace('M', '', get_memory_limit()) >= 16) {
 975         return true;
 976     }
 977
 978     /// Otherwise, see if we can change it ourselves
 979     @ini_set('memory_limit', '16M');
 980     return ((int)str_replace('M', '', get_memory_limit()) >= 16);
 981 }
 982
 983 //==========================================================================//
 984
 985 function inst_check_php_version() {
 986     if (!check_php_version("4.3.0")) {
 987         return false;
 988     } else if (check_php_version("5.0.0")) {
 989         return check_php_version("5.1.0"); // 5.0.x is too buggy
 990     }
 991     return true; // 4.3.x or 4.4.x is fine
 992 }
 993 //==========================================================================//
 994
 995 /* This function returns a list of languages and their full names. The
 996  * list of available languages is fetched from install/lang/xx/installer.php
 997  * and it's used exclusively by the installation process
 998  * @return array An associative array with contents in the form of LanguageCode => LanguageName
 999  */
1000 function get_installer_list_of_languages() {
1001
1002     global $CFG;
1003
1004     $languages = array();
1005
1006 /// Get raw list of lang directories
1007     $langdirs = get_list_of_plugins('install/lang');
1008     asort($langdirs);
1009 /// Get some info from each lang
1010     foreach ($langdirs as $lang) {
1011         if (file_exists($CFG->dirroot .'/install/lang/'. $lang .'/installer.php')) {
1012             include($CFG->dirroot .'/install/lang/'. $lang .'/installer.php');
1013             if (substr($lang, -5) == '_utf8') {   //Remove the _utf8 suffix from the lang to show
1014                 $shortlang = substr($lang, 0, -5);
1015             } else {
1016                 $shortlang = $lang;
1017             }
1018             if ($lang == 'en') {  //Explain this is non-utf8 en
1019                 $shortlang = 'non-utf8 en';
1020             }
1021             if (!empty($string['thislanguage'])) {
1022                 $languages[$lang] = $string['thislanguage'] .' ('. $shortlang .')';
1023             }
1024             unset($string);
1025         }
1026     }
1027 /// Return array
1028     return $languages;
1029 }
1030
1031 //==========================================================================//
1032
1033 function css_styles() {
1034 ?>
1035
1036 <style type="text/css">
1037
1038     body { background-color: #ffeece; }
1039     p, li, td {
1040         font-family: helvetica, arial, sans-serif;
1041         font-size: 10pt;
1042     }
1043     a { text-decoration: none; color: blue; }
1044     .errormsg {
1045         color: red;
1046         font-weight: bold;
1047     }
1048     blockquote {
1049         font-family: courier, monospace;
1050         font-size: 10pt;
1051     }
1052     .install_table {
1053         width: 500px;
1054     }
1055     .td_left {
1056         text-align: right;
1057         font-weight: bold;
1058     }
1059     .td_right {
1060         text-align: left;
1061     }
1062     .main {
1063         width: 500px;
1064         border-width: 1px;
1065         border-style: solid;
1066         border-color: #ffc85f;
1067         -moz-border-radius-bottomleft: 15px;
1068         -moz-border-radius-bottomright: 15px;
1069     }
1070     .td_mainheading {
1071         background-color: #fee6b9;
1072         padding: 10px;
1073     }
1074     .td_main {
1075         text-align: center;
1076     }
1077     .td_mainlogo {
1078     }
1079     .p_mainlogo {
1080     }
1081     .p_mainheading {
1082         font-size: 11pt;
1083     }
1084     .p_subheading {
1085         font-size: 10pt;
1086         padding: 10px;
1087     }
1088     .p_mainheader{
1089         text-align: right;
1090         font-size: 20pt;
1091         font-weight: bold;
1092     }
1093     .p_pass {
1094         color: green;
1095         font-weight: bold;
1096     }
1097     .p_fail {
1098         color: red;
1099         font-weight: bold;
1100     }
1101     .p_caution {
1102         color: #ff6600;
1103         font-weight: bold;
1104     }
1105     .p_help {
1106         text-align: center;
1107         font-family: helvetica, arial, sans-serif;
1108         font-size: 14pt;
1109         font-weight: bold;
1110         color: #333333;
1111     }
1112     .environmenttable {
1113         font-size: 10pt;
1114         border-color: #ffc85f;
1115     }
1116     .header {
1117         background-color: #fee6b9;
1118         font-size: 10pt;
1119     }
1120     .cell {
1121         background-color: #ffeece;
1122         font-size: 10pt;
1123     }
1124     .error {
1125         color: #ff0000;
1126     }
1127     .errorboxcontent {
1128         text-align: center;
1129         font-weight: bold;
1130         padding: 20px;
1131         color: #ff0000;
1132     }
1133
1134 </style>
1135
1136 <?php
1137 }
1138 ?>