install.php

   1 <?php
   2 /**
   3  *  Dokuwiki installation assistance
   4  *
   5  *  @author      Chris Smith <chris@jalakai.co.uk>
   6  */
   7
   8 if(!defined('DOKU_INC')) define('DOKU_INC',dirname(__FILE__).'/');
   9 if(!defined('DOKU_CONF')) define('DOKU_CONF',DOKU_INC.'conf/');
  10 if(!defined('DOKU_LOCAL')) define('DOKU_LOCAL',DOKU_INC.'conf/');
  11
  12 // check for error reporting override or set error reporting to sane values
  13 if (!defined('DOKU_E_LEVEL')) { error_reporting(E_ALL ^ E_NOTICE); }
  14 else { error_reporting(DOKU_E_LEVEL); }
  15
  16 // kill magic quotes
  17 if (get_magic_quotes_gpc() && !defined('MAGIC_QUOTES_STRIPPED')) {
  18     if (!empty($_GET))    remove_magic_quotes($_GET);
  19     if (!empty($_POST))   remove_magic_quotes($_POST);
  20     if (!empty($_COOKIE)) remove_magic_quotes($_COOKIE);
  21     if (!empty($_REQUEST)) remove_magic_quotes($_REQUEST);
  22     @ini_set('magic_quotes_gpc', 0);
  23     define('MAGIC_QUOTES_STRIPPED',1);
  24 }
  25 @set_magic_quotes_runtime(0);
  26 @ini_set('magic_quotes_sybase',0);
  27
  28 // language strings
  29 require_once(DOKU_INC.'inc/lang/en/lang.php');
  30 $LC = preg_replace('/[^a-z\-]+/','',$_REQUEST['l']);
  31 if(!$LC) $LC = 'en';
  32 if($LC && $LC != 'en' ) {
  33     require_once(DOKU_INC.'inc/lang/'.$LC.'/lang.php');
  34 }
  35
  36 // initialise variables ...
  37 $error = array();
  38
  39 $dokuwiki_hash = array(
  40     '2005-09-22'   => 'e33223e957b0b0a130d0520db08f8fb7',
  41     '2006-03-05'   => '51295727f79ab9af309a2fd9e0b61acc',
  42     '2006-03-09'   => '51295727f79ab9af309a2fd9e0b61acc',
  43     '2006-11-06'   => 'b3a8af76845977c2000d85d6990dd72b',
  44     '2007-05-24'   => 'd80f2740c84c4a6a791fd3c7a353536f',
  45     '2007-06-26'   => 'b3ca19c7a654823144119980be73cd77',
  46     '2008-05-04'   => '1e5c42eac3219d9e21927c39e3240aad',
  47     '2009-02-14'   => 'ec8c04210732a14fdfce0f7f6eead865',
  48 );
  49
  50
  51
  52 // begin output
  53 header('Content-Type: text/html; charset=utf-8');
  54 ?>
  55 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
  56  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  57 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="<?php echo $LC?>"
  58  lang="<?php echo $LC?>" dir="<?php echo $lang['direction']?>">
  59 <head>
  60     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
  61     <title><?php echo $lang['i_installer']?></title>
  62     <style type="text/css">
  63         body { width: 90%; margin: 0 auto; font: 84% Verdana, Helvetica, Arial, sans-serif; }
  64         img { border: none }
  65         br.cl { clear:both; }
  66         code { font-size: 110%; color: #800000; }
  67         fieldset { border: none }
  68         label { display: block; margin-top: 0.5em; }
  69         select.text, input.text { width: 30em; margin: 0 0.5em; }
  70     </style>
  71     <script type="text/javascript" language="javascript">
  72         function acltoggle(){
  73             var cb = document.getElementById('acl');
  74             var fs = document.getElementById('acldep');
  75             if(!cb || !fs) return;
  76             if(cb.checked){
  77                 fs.style.display = '';
  78             }else{
  79                 fs.style.display = 'none';
  80             }
  81         }
  82         window.onload = function(){
  83             acltoggle();
  84             var cb = document.getElementById('acl');
  85             if(cb) cb.onchange = acltoggle;
  86         };
  87     </script>
  88 </head>
  89 <body style="">
  90     <h1 style="float:left">
  91         <img src="lib/exe/fetch.php?media=wiki:dokuwiki-128.png&w=64"
  92              style="vertical-align: middle;" alt="" />
  93         <?php echo $lang['i_installer']?>
  94     </h1>
  95     <div style="float:right; margin: 1em;">
  96         <?php langsel()?>
  97     </div>
  98     <br class="cl" />
  99
 100     <div style="float: right; width: 34%;">
 101         <?php
 102             if(@file_exists(DOKU_INC.'inc/lang/'.$LC.'/install.html')){
 103                 include(DOKU_INC.'inc/lang/'.$LC.'/install.html');
 104             }else{
 105                 print "<div lang=\"en\" dir=\"ltr\">\n";
 106                 include(DOKU_INC.'inc/lang/en/install.html');
 107                 print "</div>\n";
 108             }
 109         ?>
 110     </div>
 111
 112     <div style="float: left; width: 58%;">
 113         <?php
 114             if(! (check_functions() && check_permissions()) ){
 115                 echo '<p>'.$lang['i_problems'].'</p>';
 116                 print_errors();
 117                 print_retry();
 118             }elseif(!check_configs()){
 119                 echo '<p>'.$lang['i_modified'].'</p>';
 120                 print_errors();
 121             }elseif($_REQUEST['submit']){
 122                 if(!check_data($_REQUEST['d'])){
 123                     print_errors();
 124                     print_form($_REQUEST['d']);
 125                 }elseif(!store_data($_REQUEST['d'])){
 126                     echo '<p>'.$lang['i_failure'].'</p>';
 127                     print_errors();
 128                 }else{
 129                     echo '<p>'.$lang['i_success'].'</p>';
 130                 }
 131             }else{
 132                 print_form($_REQUEST['d']);
 133             }
 134         ?>
 135     </div>
 136
 137 <div style="clear: both">
 138   <a href="http://dokuwiki.org/"><img src="lib/tpl/default/images/button-dw.png" alt="driven by DokuWiki" /></a>
 139   <a href="http://www.php.net"><img src="lib/tpl/default/images/button-php.gif" alt="powered by PHP" /></a>
 140 </div>
 141 </body>
 142 </html>
 143 <?php
 144
 145 /**
 146  * Print the input form
 147  */
 148 function print_form($d){
 149     global $lang;
 150     global $LC;
 151
 152     if(!is_array($d)) $d = array();
 153     $d = array_map('htmlspecialchars',$d);
 154
 155     if(!isset($d['acl'])) $d['acl']=1;
 156
 157     ?>
 158     <form action="" method="post">
 159     <input type="hidden" name="l" value="<?php echo $LC ?>" />
 160     <fieldset>
 161         <label for="title"><?php echo $lang['i_wikiname']?>
 162         <input type="text" name="d[title]" id="title" value="<?php echo $d['title'] ?>" style="width: 20em;" />
 163         </label>
 164
 165         <fieldset style="margin-top: 1em;">
 166             <label for="acl">
 167             <input type="checkbox" name="d[acl]" id="acl" <?php echo(($d['acl'] ? 'checked="checked"' : ''));?> />
 168             <?php echo $lang['i_enableacl']?></label>
 169
 170             <fieldset id="acldep">
 171                 <label for="superuser"><?php echo $lang['i_superuser']?></label>
 172                 <input class="text" type="text" name="d[superuser]" id="superuser" value="<?php echo $d['superuser'] ?>" />
 173
 174                 <label for="fullname"><?php echo $lang['fullname']?></label>
 175                 <input class="text" type="text" name="d[fullname]" id="fullname" value="<?php echo $d['fullname'] ?>" />
 176
 177                 <label for="email"><?php echo $lang['email']?></label>
 178                 <input class="text" type="text" name="d[email]" id="email" value="<?php echo $d['email'] ?>" />
 179
 180                 <label for="password"><?php echo $lang['pass']?></label>
 181                 <input class="text" type="password" name="d[password]" id="password" />
 182
 183                 <label for="confirm"><?php echo $lang['passchk']?></label>
 184                 <input class="text" type="password" name="d[confirm]" id="confirm" />
 185
 186                 <label for="policy"><?php echo $lang['i_policy']?></label>
 187                 <select class="text" name="d[policy]" id="policy">
 188                     <option value="0" <?php echo ($d['policy'] == 0)?'selected="selected"':'' ?>><?php echo $lang['i_pol0']?></option>
 189                     <option value="1" <?php echo ($d['policy'] == 1)?'selected="selected"':'' ?>><?php echo $lang['i_pol1']?></option>
 190                     <option value="2" <?php echo ($d['policy'] == 2)?'selected="selected"':'' ?>><?php echo $lang['i_pol2']?></option>
 191                 </select>
 192             </fieldset>
 193         </fieldset>
 194
 195     </fieldset>
 196     <fieldset id="process">
 197         <input class="button" type="submit" name="submit" value="<?php echo $lang['btn_save']?>" />
 198     </fieldset>
 199     </form>
 200     <?php
 201 }
 202
 203 function print_retry() {
 204   global $lang;
 205   global $LC;
 206 ?>
 207     <form action="" method="get">
 208       <fieldset>
 209         <input type="hidden" name="l" value="<?php echo $LC ?>" />
 210         <input class="button" type="submit" value="<?php echo $lang['i_retry'];?>" />
 211       </fieldset>
 212     </form>
 213 <?php
 214 }
 215
 216 /**
 217  * Check validity of data
 218  *
 219  * @author Andreas Gohr
 220  */
 221 function check_data(&$d){
 222     global $lang;
 223     global $error;
 224
 225     //autolowercase the username
 226     $d['superuser'] = strtolower($d['superuser']);
 227
 228     $ok = true;
 229
 230     // check input
 231     if(empty($d['title'])){
 232         $error[] = sprintf($lang['i_badval'],$lang['i_wikiname']);
 233         $ok      = false;
 234     }
 235     if($d['acl']){
 236         if(!preg_match('/^[a-z1-9_]+$/',$d['superuser'])){
 237             $error[] = sprintf($lang['i_badval'],$lang['i_superuser']);
 238             $ok      = false;
 239         }
 240         if(empty($d['password'])){
 241             $error[] = sprintf($lang['i_badval'],$lang['pass']);
 242             $ok      = false;
 243         }
 244         if($d['confirm'] != $d['password']){
 245             $error[] = sprintf($lang['i_badval'],$lang['passchk']);
 246             $ok      = false;
 247         }
 248         if(empty($d['fullname']) || strstr($d['fullname'],':')){
 249             $error[] = sprintf($lang['i_badval'],$lang['fullname']);
 250             $ok      = false;
 251         }
 252         if(empty($d['email']) || strstr($d['email'],':') || !strstr($d['email'],'@')){
 253             $error[] = sprintf($lang['i_badval'],$lang['email']);
 254             $ok      = false;
 255         }
 256     }
 257     return $ok;
 258 }
 259
 260 /**
 261  * Writes the data to the config files
 262  *
 263  * @author  Chris Smith <chris@jalakai.co.uk>
 264  */
 265 function store_data($d){
 266     global $LC;
 267     $ok = true;
 268     $d['policy'] = (int) $d['policy'];
 269
 270     // create local.php
 271     $now    = date('r');
 272     $output = <<<EOT
 273 <?php
 274 /**
 275  * Dokuwiki's Main Configuration File - Local Settings
 276  * Auto-generated by install script
 277  * Date: $now
 278  */
 279
 280 EOT;
 281     $output .= '$conf[\'title\'] = \''.addslashes($d['title'])."';\n";
 282     $output .= '$conf[\'lang\'] = \''.addslashes($LC)."';\n";
 283     if($d['acl']){
 284         $output .= '$conf[\'useacl\'] = 1'.";\n";
 285         $output .= "\$conf['superuser'] = '@admin';\n";
 286     }
 287     $ok = $ok && fileWrite(DOKU_LOCAL.'local.php',$output);
 288
 289
 290     if ($d['acl']) {
 291         // create users.auth.php
 292         // --- user:MD5password:Real Name:email:groups,comma,seperated
 293         $output = join(":",array($d['superuser'], md5($d['password']), $d['fullname'], $d['email'], 'admin,user'));
 294         $output = @file_get_contents(DOKU_CONF.'users.auth.php.dist')."\n$output\n";
 295         $ok = $ok && fileWrite(DOKU_LOCAL.'users.auth.php', $output);
 296
 297         // create acl.auth.php
 298         $output = <<<EOT
 299 # acl.auth.php
 300 # <?php exit()?>
 301 # Don't modify the lines above
 302 #
 303 # Access Control Lists
 304 #
 305 # Auto-generated by install script
 306 # Date: $now
 307
 308 EOT;
 309         if($d['policy'] == 2){
 310             $output .=  "*               @ALL          0\n";
 311             $output .=  "*               @user         8\n";
 312         }elseif($d['policy'] == 1){
 313             $output .=  "*               @ALL          1\n";
 314             $output .=  "*               @user         8\n";
 315         }else{
 316             $output .=  "*               @ALL          8\n";
 317         }
 318         $ok = $ok && fileWrite(DOKU_LOCAL.'acl.auth.php', $output);
 319     }
 320     return $ok;
 321 }
 322
 323 /**
 324  * Write the given content to a file
 325  *
 326  * @author  Chris Smith <chris@jalakai.co.uk>
 327  */
 328 function fileWrite($filename, $data) {
 329     global $error;
 330     global $lang;
 331
 332     if (($fp = @fopen($filename, 'wb')) === false) {
 333         $filename = str_replace($_SERVER['DOCUMENT_ROOT'],'{DOCUMENT_ROOT}/', $filename);
 334         $error[]  = sprintf($lang['i_writeerr'],$filename);
 335         return false;
 336     }
 337
 338     if (!empty($data)) { fwrite($fp, $data);  }
 339     fclose($fp);
 340     return true;
 341 }
 342
 343
 344 /**
 345  * check installation dependent local config files and tests for a known
 346  * unmodified main config file
 347  *
 348  * @author      Chris Smith <chris@jalakai.co.uk>
 349  */
 350 function check_configs(){
 351     global $error;
 352     global $lang;
 353     global $dokuwiki_hash;
 354
 355     $ok = true;
 356
 357     $config_files = array(
 358         'local' => DOKU_LOCAL.'local.php',
 359         'users' => DOKU_LOCAL.'users.auth.php',
 360         'auth'  => DOKU_LOCAL.'acl.auth.php'
 361     );
 362
 363
 364     // main dokuwiki config file (conf/dokuwiki.php) must not have been modified
 365     $installation_hash = md5(preg_replace("/(\015\012)|(\015)/","\012",
 366                              @file_get_contents(DOKU_CONF.'dokuwiki.php')));
 367     if (!in_array($installation_hash, $dokuwiki_hash)) {
 368         $error[] = sprintf($lang['i_badhash'],$installation_hash);
 369         $ok = false;
 370     }
 371
 372     // configs shouldn't exist
 373     foreach ($config_files as $file) {
 374         if (@file_exists($file)) {
 375             $file    = str_replace($_SERVER['DOCUMENT_ROOT'],'{DOCUMENT_ROOT}/', $file);
 376             $error[] = sprintf($lang['i_confexists'],$file);
 377             $ok      = false;
 378         }
 379     }
 380     return $ok;
 381 }
 382
 383
 384 /**
 385  * Check other installation dir/file permission requirements
 386  *
 387  * @author      Chris Smith <chris@jalakai.co.uk>
 388  */
 389 function check_permissions(){
 390     global $error;
 391     global $lang;
 392
 393     $dirs = array(
 394         'conf'      => DOKU_LOCAL,
 395         'data'      => DOKU_INC.'data',
 396         'pages'     => DOKU_INC.'data/pages',
 397         'attic'     => DOKU_INC.'data/attic',
 398         'media'     => DOKU_INC.'data/media',
 399         'meta'      => DOKU_INC.'data/meta',
 400         'cache'     => DOKU_INC.'data/cache',
 401         'locks'     => DOKU_INC.'data/locks',
 402         'index'     => DOKU_INC.'data/index',
 403         'tmp'       => DOKU_INC.'data/tmp'
 404     );
 405
 406     $ok = true;
 407     foreach($dirs as $dir){
 408         if(!@file_exists("$dir/.") || !@is_writable($dir)){
 409             $dir     = str_replace($_SERVER['DOCUMENT_ROOT'],'{DOCUMENT_ROOT}', $dir);
 410             $error[] = sprintf($lang['i_permfail'],$dir);
 411             $ok      = false;
 412         }
 413     }
 414     return $ok;
 415 }
 416
 417 /**
 418  * Check the availability of functions used in DokuWiki and the PHP version
 419  *
 420  * @author Andreas Gohr <andi@splitbrain.org>
 421  */
 422 function check_functions(){
 423     global $error;
 424     global $lang;
 425     $ok = true;
 426
 427     if(version_compare(phpversion(),'5.0.0','<')){
 428         $error[] = sprintf($lang['i_phpver'],phpversion(),'5.0.0');
 429         $ok = false;
 430     }
 431
 432     $funcs = explode(' ','addslashes basename call_user_func chmod copy fgets '.
 433                          'file file_exists fseek flush filesize ftell fopen '.
 434                          'glob header ignore_user_abort ini_get mail mkdir '.
 435                          'ob_start opendir parse_ini_file readfile realpath '.
 436                          'rename rmdir serialize session_start unlink usleep '.
 437                          'preg_replace file_get_contents htmlspecialchars_decode');
 438
 439     if (!function_exists('mb_substr')) {
 440       $funcs[] = 'utf8_encode';
 441       $funcs[] = 'utf8_decode';
 442     }
 443
 444     foreach($funcs as $func){
 445         if(!function_exists($func)){
 446             $error[] = sprintf($lang['i_funcna'],$func);
 447             $ok = false;
 448         }
 449     }
 450     return $ok;
 451 }
 452
 453 /**
 454  * Print language selection
 455  *
 456  * @author Andreas Gohr <andi@splitbrain.org>
 457  */
 458 function langsel(){
 459     global $lang;
 460     global $LC;
 461
 462     $dir = DOKU_INC.'inc/lang';
 463     $dh  = opendir($dir);
 464     if(!$dh) return;
 465
 466     $langs = array();
 467     while (($file = readdir($dh)) !== false) {
 468         if(preg_match('/^[\._]/',$file)) continue;
 469         if(is_dir($dir.'/'.$file) && @file_exists($dir.'/'.$file.'/lang.php')){
 470             $langs[] = $file;
 471         }
 472     }
 473     closedir($dh);
 474     sort($langs);
 475
 476
 477     echo '<form action="">';
 478     echo $lang['i_chooselang'];
 479     echo ': <select name="l" onchange="submit()">';
 480     foreach($langs as $l){
 481         $sel = ($l == $LC) ? 'selected="selected"' : '';
 482         echo '<option value="'.$l.'" '.$sel.'>'.$l.'</option>';
 483     }
 484     echo '</select> ';
 485     echo '<input type="submit" value="'.$lang['btn_update'].'" />';
 486     echo '</form>';
 487 }
 488
 489 /**
 490  * Print gloabl error array
 491  *
 492  * @author Andreas Gohr <andi@splitbrain.org>
 493  */
 494 function print_errors(){
 495     global $error;
 496     echo '<ul>';
 497     foreach ($error as $err){
 498         echo "<li>$err</li>";
 499     }
 500     echo '</ul>';
 501 }
 502
 503 /**
 504  * remove magic quotes recursivly
 505  *
 506  * @author Andreas Gohr <andi@splitbrain.org>
 507  */
 508 function remove_magic_quotes(&$array) {
 509   foreach (array_keys($array) as $key) {
 510     if (is_array($array[$key])) {
 511       remove_magic_quotes($array[$key]);
 512     }else {
 513       $array[$key] = stripslashes($array[$key]);
 514     }
 515   }
 516 }
 517