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     $configfile = './config.php';
  11 }
  12
  13 ///==========================================================================//
  14 /// We are doing this in stages
  15 define ('WELCOME',            0); /// 0. Welcome and language settings
  16 define ('COMPATIBILITY',      1); /// 1. Compatibility
  17 define ('DIRECTORY',          2); /// 2. Directory settings
  18 define ('DATABASE',           3); /// 2. Database settings
  19 define ('ADMIN',              4); /// 4. Administration directory name
  20 define ('ENVIRONMENT',        5); /// 5. Administration directory name
  21 define ('SAVE',               6); /// 6. Save or display the settings
  22 define ('REDIRECT',           7); /// 7. Redirect to index.php
  23 ///==========================================================================//
  24
  25
  26
  27 /// Begin the session as we are holding all information in a session
  28 /// variable until the end.
  29
  30 session_name('MoodleSession');
  31 @session_start();
  32
  33 if (! isset($_SESSION['INSTALL'])) {
  34     $_SESSION['INSTALL'] = array();
  35 }
  36
  37 $INSTALL = &$_SESSION['INSTALL'];   // Makes it easier to reference
  38
  39
  40 /// If it's our first time through this script then we need to set some default values
  41
  42 if ( empty($INSTALL['language']) and empty($_POST['language']) ) {
  43
  44     /// set defaults
  45     $INSTALL['language']        = 'en';
  46
  47     $INSTALL['dbhost']          = 'localhost';
  48     $INSTALL['dbuser']          = '';
  49     $INSTALL['dbpass']          = '';
  50     $INSTALL['dbtype']          = 'mysql';
  51     $INSTALL['dbname']          = 'moodle';
  52     $INSTALL['prefix']          = 'mdl_';
  53
  54     $INSTALL['dbencodingtestresults']  = false;
  55     $INSTALL['showskipdbencodingtest'] = false;
  56     $INSTALL['skipdbencodingtest']     = false;
  57
  58     $INSTALL['wwwroot']         = '';
  59     $INSTALL['dirroot']         = dirname(__FILE__);
  60     $INSTALL['dataroot']        = dirname(dirname(__FILE__)) . '/moodledata';
  61
  62     $INSTALL['admindirname']    = 'admin';
  63
  64     $INSTALL['stage'] = WELCOME;
  65 }
  66
  67 //==========================================================================//
  68
  69 /// Was data submitted?
  70
  71 if (isset($_POST['stage'])) {
  72
  73     /// Get the stage for which the form was set and the next stage we are going to
  74
  75
  76     if ( $goforward = (! empty( $_POST['next'] )) ) {
  77         $nextstage = $_POST['stage'] + 1;
  78     } else {
  79         $nextstage = $_POST['stage'] - 1;
  80     }
  81
  82
  83     if ($nextstage < 0) $nextstage = WELCOME;
  84
  85
  86     /// Store any posted data
  87     foreach ($_POST as $setting=>$value) {
  88         $INSTALL[$setting] = $value;
  89     }
  90
  91 } else {
  92
  93     $goforward = true;
  94     $nextstage = WELCOME;
  95
  96 }
  97
  98 //==========================================================================//
  99
 100 /// Fake some settings so that we can use selected functions from moodlelib.php and weblib.php
 101
 102 $SESSION->lang = (!empty($_POST['language'])) ? $_POST['language'] : $INSTALL['language'];
 103 $CFG->dirroot = $INSTALL['dirroot'];
 104 $CFG->libdir = $INSTALL['dirroot'].'/lib';
 105 $CFG->dataroot = $INSTALL['dataroot'];
 106 $CFG->admin = $INSTALL['admindirname'];
 107 $CFG->directorypermissions = 00777;
 108
 109 /// Include some moodle libraries
 110
 111 require_once('./lib/setuplib.php');
 112 require_once('./lib/moodlelib.php');
 113 require_once('./lib/weblib.php');
 114 require_once('./lib/adodb/adodb.inc.php');
 115 require_once('./lib/environmentlib.php');
 116 require_once('./lib/xmlize.php');
 117 require_once('./version.php');
 118
 119 /// Set version and release
 120 $INSTALL['version'] = $version;
 121 $INSTALL['release'] = $release;
 122
 123 /// Have the $db object ready because we are going to use it often
 124 $db = &ADONewConnection($INSTALL['dbtype']);
 125
 126 /// guess the www root
 127 if ($INSTALL['wwwroot'] == '') {
 128     list($INSTALL['wwwroot'], $xtra) = explode('/install.php', qualified_me());
 129 }
 130
 131 $headstagetext = array(WELCOME       => get_string('chooselanguagehead', 'install'),
 132                        COMPATIBILITY => get_string('compatibilitysettingshead', 'install'),
 133                        DIRECTORY     => get_string('directorysettingshead', 'install'),
 134                        DATABASE      => get_string('databasesettingshead', 'install'),
 135                        ADMIN         => get_string('admindirsettinghead', 'install'),
 136                        ENVIRONMENT   => get_string('environmenthead', 'install'),
 137                        SAVE          => get_string('configurationcompletehead', 'install')
 138                         );
 139
 140 $substagetext = array(WELCOME       => get_string('chooselanguagesub', 'install'),
 141                       COMPATIBILITY => get_string('compatibilitysettingssub', 'install'),
 142                       DIRECTORY     => get_string('directorysettingssub', 'install'),
 143                       DATABASE      => get_string('databasesettingssub', 'install'),
 144                       ADMIN         => get_string('admindirsettingsub', 'install'),
 145                       ENVIRONMENT   => get_string('environmentsub', 'install'),
 146                       SAVE          => get_string('configurationcompletesub', 'install')
 147                        );
 148
 149
 150
 151 //==========================================================================//
 152
 153 /// Are we in help mode?
 154
 155 if (isset($_GET['help'])) {
 156     $nextstage = -1;
 157 }
 158
 159
 160
 161 //==========================================================================//
 162
 163 /// Are we in config download mode?
 164
 165 if (isset($_GET['download'])) {
 166     header("Content-Type: application/download\n");
 167     header("Content-Disposition: attachment; filename=\"config.php\"");
 168     echo $INSTALL['config'];
 169     exit;
 170 }
 171
 172
 173
 174
 175
 176 //==========================================================================//
 177
 178 /// Check the directory settings
 179
 180 if ($INSTALL['stage'] == DIRECTORY) {
 181
 182     error_reporting(0);
 183
 184
 185     /// check dirroot
 186     if (($fh = @fopen($INSTALL['dirroot'].'/install.php', 'r')) === false ) {
 187         $CFG->dirroot = dirname(__FILE__);
 188         $INSTALL['dirroot'] = dirname(__FILE__);
 189         $errormsg .= get_string('dirrooterror', 'install').'<br />';
 190     }
 191     if ($fh) fclose($fh);
 192
 193     $CFG->dirroot = $INSTALL['dirroot'];
 194
 195     /// check wwwroot
 196     if (ini_get('allow_url_fopen')) {
 197         if (($fh = @fopen($INSTALL['wwwroot'].'/install.php', 'r')) === false) {
 198             $errormsg .= get_string('wwwrooterror', 'install').'<br />';
 199         }
 200     }
 201     if ($fh) fclose($fh);
 202
 203     /// check dataroot
 204     $CFG->dataroot = $INSTALL['dataroot'];
 205     if (make_upload_directory('sessions', false) === false ) {
 206         $errormsg = get_string('datarooterror', 'install').'<br />';
 207     }
 208     if ($fh) fclose($fh);
 209
 210     if (!empty($errormsg)) $nextstage = DIRECTORY;
 211
 212     error_reporting(7);
 213 }
 214
 215
 216
 217 //==========================================================================//
 218
 219 /// Check database settings if stage 3 data submitted
 220 /// Try to connect to the database. If that fails then try to create the database
 221
 222 if ($INSTALL['stage'] == DATABASE) {
 223
 224     /// First of all, analyze skipdbencodingtest status
 225      if (isset($_POST['skipdbencodingtest'])) {
 226          $INSTALL['skipdbencodingtest'] = true;
 227      } else {
 228          $INSTALL['skipdbencodingtest'] = false;
 229      }
 230
 231     /// different format for postgres7 by socket
 232     if ($INSTALL['dbtype'] == 'postgres7' and ($INSTALL['dbhost'] == 'localhost' || $INSTALL['dbhost'] == '127.0.0.1')) {
 233         $INSTALL['dbhost'] = "user='{$INSTALL['dbuser']}' password='{$INSTALL['dbpass']}' dbname='{$INSTALL['dbname']}'";
 234         $INSTALL['dbuser'] = '';
 235         $INSTALL['dbpass'] = '';
 236         $INSTALL['dbname'] = '';
 237
 238         if ($INSTALL['prefix'] == '') { /// must have a prefix
 239             $INSTALL['prefix'] = 'mdl_';
 240         }
 241     }
 242
 243     if ($INSTALL['dbtype'] == 'mysql') {  /// Check MySQL extension is present
 244         if (!extension_loaded('mysql')) {
 245             $errormsg = get_string('mysqlextensionisnotpresentinphp', 'install');
 246             $nextstage = DATABASE;
 247         }
 248     }
 249
 250     if (empty($errormsg)) {
 251
 252         error_reporting(0);  // Hide errors
 253
 254         if (! $dbconnected = $db->Connect($INSTALL['dbhost'],$INSTALL['dbuser'],$INSTALL['dbpass'],$INSTALL['dbname'])) {
 255             /// The following doesn't seem to work but we're working on it
 256             /// If you come up with a solution for creating a database in MySQL
 257             /// feel free to put it in and let us know
 258             if ($dbconnected = $db->Connect($INSTALL['dbhost'],$INSTALL['dbuser'],$INSTALL['dbpass'])) {
 259                 switch ($INSTALL['dbtype']) {   /// Try to create a database
 260                     case 'mysql':
 261                         if ($db->Execute("CREATE DATABASE {$INSTALL['dbname']};")) {
 262                             $dbconnected = $db->Connect($INSTALL['dbhost'],$INSTALL['dbuser'],$INSTALL['dbpass'],$INSTALL['dbname']);
 263                         } else {
 264                             $errormsg = get_string('dbcreationerror', 'install');
 265                             $nextstage = DATABASE;
 266                         }
 267                         break;
 268                 }
 269             }
 270         } else {
 271         /// We have been able to connect properly, just test the database encoding now. It should be Unicode for 1.6
 272         /// installations (although not mandatory for now). Just show one message about it and allow to skip this test.
 273             if (empty($INSTALL['skipdbencodingtest'])) {
 274             /// We haven't checked the skip test checkbox, so perform the test
 275                 $encoding = '';
 276                 switch ($INSTALL['dbtype']) {
 277                     case 'mysql':
 278                     ///Get MySQL character_set_database value
 279                         $rs = $db->Execute("SHOW VARIABLES LIKE 'character_set_database'");
 280                         if ($rs && $rs->RecordCount() > 0) {
 281                             $records = $rs->GetAssoc(true);
 282                             $encoding = $records['character_set_database']['Value'];
 283                             if (strtoupper($encoding) != 'UTF8') {
 284                                 $errormsg = get_string('dbwrongencoding', 'install', $encoding);
 285                                 $nextstage = DATABASE;
 286                                 $INSTALL['showskipdbencodingtest'] = true;
 287                                 $INSTALL['dbencodingtestresults'] = false;
 288                             } else {
 289                                 $INSTALL['dbencodingtestresults'] = true;
 290                             }
 291                         }
 292                         break;
 293                     case 'postgres7':
 294                     ///Get PostgreSQL server_encoding value
 295                         $rs = $db->Execute("SHOW server_encoding");
 296                         if ($rs && $rs->RecordCount() > 0) {
 297                             $encoding = $rs->fields['server_encoding'];
 298                             if (strtoupper($encoding) != 'UNICODE') {
 299                                 $errormsg = get_string('dbwrongencoding', 'install', $encoding);
 300                                 $nextstage = DATABASE;
 301                                 $INSTALL['showskipdbencodingtest'] = true;
 302                                 $INSTALL['dbencodingtestresults'] = false;
 303                             } else {
 304                                 $INSTALL['dbencodingtestresults'] = true;
 305                             }
 306                         }
 307                         break;
 308                 }
 309             }
 310         }
 311     }
 312
 313     error_reporting(7);
 314
 315     if (($dbconnected === false) and (empty($errormsg)) ) {
 316         $errormsg = get_string('dbconnectionerror', 'install');
 317         $nextstage = DATABASE;
 318     }
 319 }
 320
 321
 322
 323 //==========================================================================//
 324
 325 /// If the next stage is admin directory settings OR we have just come from there then
 326 /// check the admin directory.
 327 /// If we can open a file then we know that the admin name is correct.
 328
 329 if ($nextstage == ADMIN or $INSTALL['stage'] == ADMIN) {
 330     if (!ini_get('allow_url_fopen')) {
 331         $nextstage = ($goforward) ? ENVIRONMENT : DATABASE;
 332     } else if (($fh = @fopen($INSTALL['wwwroot'].'/'.$INSTALL['admindirname'].'/site.html', 'r')) !== false) {
 333         $nextstage = ($goforward) ? ENVIRONMENT : DATABASE;
 334         fclose($fh);
 335     } else {
 336         if ($nextstage != ADMIN) {
 337             $errormsg = get_string('admindirerror', 'install');
 338             $nextstage = ADMIN;
 339         }
 340     }
 341 }
 342
 343 //==========================================================================//
 344
 345 // Check if we can navigate from the environemt page (because it's ok)
 346
 347 if ($INSTALL['stage'] == ENVIRONMENT) {
 348     error_reporting(0);  // Hide errors
 349     $dbconnected = $db->Connect($INSTALL['dbhost'],$INSTALL['dbuser'],$INSTALL['dbpass'],$INSTALL['dbname']);
 350     error_reporting(7);  // Show errors
 351     if ($dbconnected) {
 352     /// Execute environment check, printing results
 353         if (!check_moodle_environment($INSTALL['release'], $environment_results, false)) {
 354              $nextstage = ENVIRONMENT;
 355         }
 356     } else {
 357     /// We never should reach this because DB has been tested before arriving here
 358         $errormsg = get_string('dbconnectionerror', 'install');
 359         $nextstage = DATABASE;
 360     }
 361 }
 362
 363
 364 //==========================================================================//
 365
 366 /// Display or print the data
 367 /// Put the data into a string
 368 /// Try to open config file for writing.
 369
 370 if ($nextstage == SAVE) {
 371
 372     $str  = '<?php  /// Moodle Configuration File '."\r\n";
 373     $str .= "\r\n";
 374
 375     $str .= 'unset($CFG);'."\r\n";
 376     $str .= "\r\n";
 377
 378     $str .= '$CFG->dbtype    = \''.$INSTALL['dbtype']."';\r\n";
 379     $str .= '$CFG->dbhost    = \''.addslashes($INSTALL['dbhost'])."';\r\n";
 380     if (!empty($INSTALL['dbname'])) {
 381         $str .= '$CFG->dbname    = \''.$INSTALL['dbname']."';\r\n";
 382         $str .= '$CFG->dbuser    = \''.$INSTALL['dbuser']."';\r\n";
 383         $str .= '$CFG->dbpass    = \''.$INSTALL['dbpass']."';\r\n";
 384     }
 385     $str .= '$CFG->dbpersist =  false;'."\r\n";
 386     $str .= '$CFG->prefix    = \''.$INSTALL['prefix']."';\r\n";
 387     $str .= "\r\n";
 388
 389     $str .= '$CFG->wwwroot   = \''.$INSTALL['wwwroot']."';\r\n";
 390     $str .= '$CFG->dirroot   = \''.$INSTALL['dirroot']."';\r\n";
 391     $str .= '$CFG->dataroot  = \''.$INSTALL['dataroot']."';\r\n";
 392     $str .= '$CFG->admin     = \''.$INSTALL['admindirname']."';\r\n";
 393     $str .= "\r\n";
 394
 395     $str .= '$CFG->directorypermissions = 00777;  // try 02777 on a server in Safe Mode'."\r\n";
 396     $str .= "\r\n";
 397
 398     if (!$INSTALL['skipdbencodingtest'] && $INSTALL['dbencodingtestresults']) {
 399         $str .= '$CFG->unicodedb = true;  // Database is utf8'."\r\n";
 400         $str .= "\r\n";
 401     }
 402
 403     $str .= 'require_once("$CFG->dirroot/lib/setup.php");'."\r\n";
 404     $str .= '// MAKE SURE WHEN YOU EDIT THIS FILE THAT THERE ARE NO SPACES, BLANK LINES,'."\r\n";
 405     $str .= '// RETURNS, OR ANYTHING ELSE AFTER THE TWO CHARACTERS ON THE NEXT LINE.'."\r\n";
 406     $str .= '?>';
 407
 408     umask(0137);
 409
 410     if (( $configsuccess = ($fh = @fopen($configfile, 'w')) ) !== false) {
 411         fwrite($fh, $str);
 412         fclose($fh);
 413     }
 414
 415
 416     $INSTALL['config'] = $str;
 417 }
 418
 419
 420
 421 //==========================================================================//
 422
 423 ?>
 424
 425
 426
 427 <html dir="<?php echo (get_string('this_direction') == 'rtl') ? 'rtl' : 'ltr' ?>">
 428 <head>
 429 <link rel="shortcut icon" href="theme/standard/favicon.ico" />
 430 <title>Moodle Install</title>
 431 <meta http-equiv="content-type" content="text/html; charset=<?php p(current_charset()) ?>" />
 432 <?php css_styles() ?>
 433
 434 </head>
 435
 436 <body>
 437
 438
 439 <?php
 440 if (isset($_GET['help'])) {
 441     print_install_help($_GET['help']);
 442     close_window_button();
 443 } else {
 444 ?>
 445
 446
 447 <table class="main" align="center" cellpadding="3" cellspacing="0">
 448     <tr>
 449         <td class="td_mainlogo">
 450             <p class="p_mainlogo"><img src="pix/moodlelogo-med.gif" width="240" height="60" alt=\"\"></p>
 451         </td>
 452         <td class="td_mainlogo" valign="bottom">
 453             <p class="p_mainheader"><?php print_string('installation', 'install') ?></p>
 454         </td>
 455     </tr>
 456
 457     <tr>
 458         <td class="td_mainheading" colspan="2">
 459             <p class="p_mainheading"><?php echo $headstagetext[$nextstage] ?></p>
 460             <?php if (!empty($substagetext[$nextstage])) { ?>
 461             <p class="p_subheading"><?php echo $substagetext[$nextstage] ?></p>
 462             <?php } ?>
 463         </td>
 464     </tr>
 465
 466     <tr>
 467         <td class="td_main" colspan="2">
 468
 469 <?php
 470
 471 if (!empty($errormsg)) echo "<p class=\"errormsg\" align=\"center\">$errormsg</p>\n";
 472
 473
 474 if ($nextstage == SAVE) {
 475     $INSTALL['stage'] = WELCOME;
 476     $options = array();
 477     $options['lang'] = $INSTALL['language'];
 478     if ($configsuccess) {
 479         echo "<p>".get_string('configfilewritten', 'install')."</p>\n";
 480
 481         echo "<table cellspacing=\"0\" cellpadding=\"0\" border=\"0\" width=\"100%\">\n";
 482         echo "<tr>\n";
 483         echo "<td width=\"33.3%\">&nbsp;</td>\n";
 484         echo "<td width=\"33.3%\">&nbsp;</td>\n";
 485         echo "<td width=\"33.3%\" align=\"right\">\n";
 486         print_single_button("index.php", $options, get_string('continue')."  &raquo;");
 487         echo "</td>\n";
 488         echo "</tr>\n";
 489         echo "</table>\n";
 490
 491     } else {
 492         echo "<p class=\"errormsg\">".get_string('configfilenotwritten', 'install')."</p>";
 493
 494         echo "<table cellspacing=\"0\" cellpadding=\"0\" border=\"0\" width=\"100%\">\n";
 495         echo "<tr>\n";
 496         echo "<td width=\"33.3%\">&nbsp;</td>\n";
 497         echo "<td width=\"33.3%\" align=\"center\">\n";
 498         $installoptions = array();
 499         $installoptions['download'] = 1;
 500         print_single_button("install.php", $installoptions, get_string('download', 'install'));
 501         echo "</td>\n";
 502         echo "<td width=\"33.3%\" align=\"right\">\n";
 503         print_single_button("index.php", $options, get_string('continue')."  &raquo;");
 504         echo "</td>\n";
 505         echo "</tr>\n";
 506         echo "</table>\n";
 507
 508         echo "<hr />\n";
 509         echo "<div style=\"text-align: left\">\n";
 510         print_object(htmlentities($str));
 511         echo "</div>\n";
 512     }
 513 } else {
 514     $formaction = (isset($_GET['configfile'])) ? "install.php?configfile=".$_GET['configfile'] : "install.php";
 515     form_table($nextstage, $formaction);
 516 }
 517
 518 ?>
 519
 520         </td>
 521     </tr>
 522 </table>
 523
 524 <?php
 525 }
 526 ?>
 527
 528 </body>
 529 </html>
 530
 531
 532
 533
 534
 535
 536
 537
 538
 539
 540 <?php
 541
 542 //==========================================================================//
 543
 544
 545 function print_object($object) {
 546     echo "<pre>\n";
 547     print_r($object);
 548     echo "</pre>\n";
 549 }
 550
 551
 552
 553 //==========================================================================//
 554
 555 function form_table($nextstage = WELCOME, $formaction = "install.php") {
 556     global $INSTALL, $db;
 557
 558     /// standard lines for all forms
 559 ?>
 560
 561     <form name="installform" method="post" action="<?php echo $formaction ?>">
 562     <input type="hidden" name="stage" value="<?php echo $nextstage ?>" />
 563     <table class="install_table" cellspacing="3" cellpadding="3" align="center">
 564
 565 <?php
 566     /// what we do depends on the stage we're at
 567     switch ($nextstage) {
 568         case WELCOME: /// Welcome and language settings
 569 ?>
 570             <tr>
 571                 <td class="td_left"><p><?php print_string('language') ?></p></td>
 572                 <td class="td_right">
 573                 <?php choose_from_menu (get_list_of_languages(), 'language', $INSTALL['language'], '') ?>
 574                 </td>
 575             </tr>
 576
 577 <?php
 578             break;
 579         case COMPATIBILITY: /// Compatibilty check
 580             $compatsuccess = true;
 581
 582             /// Check that PHP is of a sufficient version
 583             print_compatibility_row(check_php_version("4.1.0"), get_string('phpversion', 'install'), get_string('phpversionerror', 'install'), 'phpversionhelp');
 584             /// Check session auto start
 585             print_compatibility_row(!ini_get_bool('session.auto_start'), get_string('sessionautostart', 'install'), get_string('sessionautostarterror', 'install'), 'sessionautostarthelp');
 586             /// Check magic quotes
 587             print_compatibility_row(!ini_get_bool('magic_quotes_runtime'), get_string('magicquotesruntime', 'install'), get_string('magicquotesruntimeerror', 'install'), 'magicquotesruntimehelp');
 588             /// Check unsupported PHP configuration
 589             print_compatibility_row(ini_get_bool('magic_quotes_gpc') || (!ini_get_bool('register_globals')), get_string('globalsquotes', 'install'), get_string('globalsquoteserror', 'install'), 'globalsquoteshelp');
 590             /// Check safe mode
 591             print_compatibility_row(!ini_get_bool('safe_mode'), get_string('safemode', 'install'), get_string('safemodeerror', 'install'), 'safemodehelp', true);
 592             /// Check file uploads
 593             print_compatibility_row(ini_get_bool('file_uploads'), get_string('fileuploads', 'install'), get_string('fileuploadserror', 'install'), 'fileuploadshelp', true);
 594             /// Check GD version
 595             print_compatibility_row(check_gd_version(), get_string('gdversion', 'install'), get_string('gdversionerror', 'install'), 'gdversionhelp', true);
 596             /// Check memory limit
 597             print_compatibility_row(check_memory_limit(), get_string('memorylimit', 'install'), get_string('memorylimiterror', 'install'), 'memorylimithelp', true);
 598
 599
 600             break;
 601         case DIRECTORY: /// Directory settings
 602 ?>
 603
 604             <tr>
 605                 <td class="td_left"><p><?php print_string('wwwroot', 'install') ?></p></td>
 606                 <td class="td_right">
 607                     <input type="text" size="40"name="wwwroot" value="<?php echo $INSTALL['wwwroot'] ?>" />
 608                 </td>
 609             </tr>
 610             <tr>
 611                 <td class="td_left"><p><?php print_string('dirroot', 'install') ?></p></td>
 612                 <td class="td_right">
 613                     <input type="text" size="40" name="dirroot" value="<?php echo $INSTALL['dirroot'] ?>" />
 614                 </td>
 615             </tr>
 616             <tr>
 617                 <td class="td_left"><p><?php print_string('dataroot', 'install') ?></p></td>
 618                 <td class="td_right">
 619                     <input type="text" size="40" name="dataroot" value="<?php echo $INSTALL['dataroot'] ?>" />
 620                 </td>
 621             </tr>
 622
 623 <?php
 624             break;
 625         case DATABASE: /// Database settings
 626 ?>
 627
 628             <tr>
 629                 <td class="td_left"><p><?php print_string('dbtype', 'install') ?></p></td>
 630                 <td class="td_right">
 631                 <?php choose_from_menu (array("mysql" => "mysql", "postgres7" => "postgres7"), 'dbtype', $INSTALL['dbtype'], '') ?>
 632                 </td>
 633             </tr>
 634             <tr>
 635                 <td class="td_left"><p><?php print_string('dbhost', 'install') ?></p></td>
 636                 <td class="td_right">
 637                     <input type="text" size="40" name="dbhost" value="<?php echo $INSTALL['dbhost'] ?>" />
 638                 </td>
 639             </tr>
 640             <tr>
 641                 <td class="td_left"><p><?php print_string('database', 'install') ?></p></td>
 642                 <td class="td_right">
 643                     <input type="text" size="40" name="dbname" value="<?php echo $INSTALL['dbname'] ?>" />
 644                 </td>
 645             </tr>
 646             <tr>
 647                 <td class="td_left"><p><?php print_string('user') ?></p></td>
 648                 <td class="td_right">
 649                     <input type="text" size="40" name="dbuser" value="<?php echo $INSTALL['dbuser'] ?>" />
 650                 </td>
 651             </tr>
 652             <tr>
 653                 <td class="td_left"><p><?php print_string('password') ?></p></td>
 654                 <td class="td_right">
 655                     <input type="password" size="40" name="dbpass" value="<?php echo $INSTALL['dbpass'] ?>" />
 656                 </td>
 657             </tr>
 658             <tr>
 659                 <td class="td_left"><p><?php print_string('dbprefix', 'install') ?></p></td>
 660                 <td class="td_right">
 661                     <input type="text" size="40" name="prefix" value="<?php echo $INSTALL['prefix'] ?>" />
 662                 </td>
 663             </tr>
 664             <?php if ($INSTALL['showskipdbencodingtest']) { ?>
 665             <tr>
 666                 <td class="td_left" colspan="2">
 667                     <?php print_checkbox ('skipdbencodingtest', '1', $INSTALL['skipdbencodingtest'], get_string('skipdbencodingtest', 'install')) ?>
 668                 </td>
 669             </tr>
 670             <?php } ?>
 671
 672 <?php
 673             break;
 674         case ADMIN: /// Administration directory setting
 675 ?>
 676
 677             <tr>
 678                 <td class="td_left"><p><?php print_string('admindirname', 'install') ?></p></td>
 679                 <td class="td_right">
 680                     <input type="text" size="40" name="admindirname" value="<?php echo $INSTALL['admindirname'] ?>" />
 681                 </td>
 682             </tr>
 683
 684
 685 <?php
 686             break;
 687         case ENVIRONMENT: /// Environment checks
 688 ?>
 689
 690             <tr>
 691                 <td colspan="2">
 692                 <?php
 693                     error_reporting(0);  // Hide errors
 694                     $dbconnected = $db->Connect($INSTALL['dbhost'],$INSTALL['dbuser'],$INSTALL['dbpass'],$INSTALL['dbname']);
 695                     error_reporting(7);  // Show errors
 696                     if ($dbconnected) {
 697                     /// Execute environment check, printing results
 698                         check_moodle_environment($INSTALL['release'], $environment_results, true);
 699                     } else {
 700                     /// We never should reach this because DB has been tested before arriving here
 701                         $errormsg = get_string('dbconnectionerror', 'install');
 702                         $nextstage = DATABASE;
 703                         echo '<p class="errormsg" align="center">'.get_string('dbconnectionerror', 'install').'</p>';
 704                     }
 705                 ?>
 706                 </td>
 707             </tr>
 708
 709
 710
 711 <?php
 712             break;
 713         default:
 714     }
 715 ?>
 716
 717     <tr>
 718         <td colspan="<?php echo ($nextstage == COMPATIBILITY) ? 3 : 2; ?>">
 719
 720             <?php echo ($nextstage < SAVE) ? "<input type=\"submit\" name=\"next\" value=\"".get_string('next')."  &raquo;\" style=\"float: right\"/>\n" : "&nbsp;\n" ?>
 721             <?php echo ($nextstage > WELCOME) ? "<input type=\"submit\" name=\"prev\" value=\"&laquo;  ".get_string('previous')."\" style=\"float: left\"/>\n" : "&nbsp;\n" ?>
 722
 723
 724         </td>
 725
 726     </tr>
 727
 728     </table>
 729     </form>
 730
 731 <?php
 732 }
 733
 734
 735
 736 //==========================================================================//
 737
 738 function print_compatibility_row($success, $testtext, $errormessage, $helpfield='', $caution=false) {
 739     echo "<tr>\n";
 740     echo "<td class=\"td_left\" valign=\"top\" nowrap width=\"160\"><p>$testtext</p></td>\n";
 741     if ($success) {
 742         echo "<td valign=\"top\"><p class=\"p_pass\">".get_string('pass', 'install')."</p></td>\n";
 743         echo "<td valign=\"top\">&nbsp;</td>\n";
 744     } else {
 745         echo "<td valign=\"top\"";
 746         echo ($caution) ? "<p class=\"p_caution\">".get_string('caution', 'install') : "<p class=\"p_fail\">".get_string('fail', 'install');
 747         echo "</p></td>\n";
 748         echo "<td valign=\"top\">";
 749         echo "<p>$errormessage ";
 750         install_helpbutton("install.php?help=$helpfield");
 751         echo "</p></td>\n";
 752     }
 753     echo "</tr>\n";
 754     return $success;
 755 }
 756
 757
 758 //==========================================================================//
 759
 760 function install_helpbutton($url, $title='') {
 761     if ($title == '') {
 762         $title = get_string('help');
 763     }
 764     echo "<a href=\"javascript: void(0)\">";
 765     echo "<img src=\"./pix/help.gif\" height=\"17\" width=\"17\" alt=\"$title\"";
 766     echo "border=\"0\" align=\"middle\" title=\"$title\" ";
 767     echo "onClick=\"return window.open('$url', 'Help', 'menubar=0,location=0,scrollbars,resizable,width=500,height=400')\">";
 768     echo "</a>\n";
 769 }
 770
 771
 772
 773 //==========================================================================//
 774
 775 function print_install_help($help) {
 776     switch ($help) {
 777         case 'phpversionhelp':
 778             print_string($help, 'install', phpversion());
 779             break;
 780         case 'memorylimithelp':
 781             print_string($help, 'install', get_memory_limit());
 782             break;
 783         default:
 784             print_string($help, 'install');
 785     }
 786 }
 787
 788
 789 //==========================================================================//
 790
 791 function get_memory_limit() {
 792     if ($limit = ini_get('memory_limit')) {
 793         return $limit;
 794     } else {
 795         return get_cfg_var('memory_limit');
 796     }
 797 }
 798
 799 //==========================================================================//
 800
 801 function check_memory_limit() {
 802
 803     /// if limit is already 16M or more then we don't care if we can change it or not
 804     if ((int)str_replace('M', '', get_memory_limit()) >= 16) {
 805         return true;
 806     }
 807
 808     /// Otherwise, see if we can change it ourselves
 809     @ini_set('memory_limit', '16M');
 810     return ((int)str_replace('M', '', get_memory_limit()) >= 16);
 811 }
 812
 813 //==========================================================================//
 814
 815 function css_styles() {
 816 ?>
 817
 818 <style type="text/css">
 819
 820     body { background-color: #ffeece; }
 821     p, li, td {
 822         font-family: helvetica, arial, sans-serif;
 823         font-size: 10pt;
 824     }
 825     a { text-decoration: none; color: blue; }
 826     .errormsg {
 827         color: red;
 828         font-weight: bold;
 829     }
 830     blockquote {
 831         font-family: courier, monospace;
 832         font-size: 10pt;
 833     }
 834     .install_table {
 835         width: 500px;
 836     }
 837     .td_left {
 838         text-align: right;
 839         font-weight: bold;
 840     }
 841     .td_right {
 842         text-align: left;
 843     }
 844     .main {
 845         width: 500px;
 846         border-width: 1px;
 847         border-style: solid;
 848         border-color: #ffc85f;
 849         -moz-border-radius-bottomleft: 15px;
 850         -moz-border-radius-bottomright: 15px;
 851     }
 852     .td_mainheading {
 853         background-color: #fee6b9;
 854         padding: 10px;
 855     }
 856     .td_main {
 857         text-align: center;
 858     }
 859     .td_mainlogo {
 860     }
 861     .p_mainlogo {
 862     }
 863     .p_mainheading {
 864         font-size: 11pt;
 865     }
 866     .p_subheading {
 867         font-size: 10pt;
 868         padding: 10px;
 869     }
 870     .p_mainheader{
 871         text-align: right;
 872         font-size: 20pt;
 873         font-weight: bold;
 874     }
 875     .p_pass {
 876         color: green;
 877         font-weight: bold;
 878     }
 879     .p_fail {
 880         color: red;
 881         font-weight: bold;
 882     }
 883     .p_caution {
 884         color: #ff6600;
 885         font-weight: bold;
 886     }
 887     .p_help {
 888         text-align: center;
 889         font-family: helvetica, arial, sans-serif;
 890         font-size: 14pt;
 891         font-weight: bold;
 892         color: #333333;
 893     }
 894     .environmenttable {
 895         font-size: 10pt;
 896         border-color: #ffc85f;
 897     }
 898     .header {
 899         background-color: #fee6b9;
 900         font-size: 10pt;
 901     }
 902     .cell {
 903         background-color: #ffeece;
 904         font-size: 10pt;
 905     }
 906     .error {
 907         color: #ff0000;
 908     }
 909     .errorboxcontent {
 910         text-align: center;
 911         font-weight: bold;
 912         padding: 20px;
 913         color: #ff0000;
 914     }
 915
 916 </style>
 917
 918 <?php
 919 }
 920 ?>