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     '2009-12-25' => '993c4b2b385643efe5abf8e7010e11f4',
  49 );
  50
  51
  52
  53 // begin output
  54 header('Content-Type: text/html; charset=utf-8');
  55 ?>
  56 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
  57  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  58 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="<?php echo $LC?>"
  59  lang="<?php echo $LC?>" dir="<?php echo $lang['direction']?>">
  60 <head>
  61     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
  62     <title><?php echo $lang['i_installer']?></title>
  63     <style type="text/css">
  64         body { width: 90%; margin: 0 auto; font: 84% Verdana, Helvetica, Arial, sans-serif; }
  65         img { border: none }
  66         br.cl { clear:both; }
  67         code { font-size: 110%; color: #800000; }
  68         fieldset { border: none }
  69         label { display: block; margin-top: 0.5em; }
  70         select.text, input.text { width: 30em; margin: 0 0.5em; }
  71     </style>
  72     <script type="text/javascript" language="javascript">
  73         function acltoggle(){
  74             var cb = document.getElementById('acl');
  75             var fs = document.getElementById('acldep');
  76             if(!cb || !fs) return;
  77             if(cb.checked){
  78                 fs.style.display = '';
  79             }else{
  80                 fs.style.display = 'none';
  81             }
  82         }
  83         window.onload = function(){
  84             acltoggle();
  85             var cb = document.getElementById('acl');
  86             if(cb) cb.onchange = acltoggle;
  87         };
  88     </script>
  89 </head>
  90 <body style="">
  91     <h1 style="float:left">
  92         <img src="lib/exe/fetch.php?media=wiki:dokuwiki-128.png&w=64"
  93              style="vertical-align: middle;" alt="" />
  94         <?php echo $lang['i_installer']?>
  95     </h1>
  96     <div style="float:right; margin: 1em;">
  97         <?php langsel()?>
  98     </div>
  99     <br class="cl" />
 100
 101     <div style="float: right; width: 34%;">
 102         <?php
 103             if(@file_exists(DOKU_INC.'inc/lang/'.$LC.'/install.html')){
 104                 include(DOKU_INC.'inc/lang/'.$LC.'/install.html');
 105             }else{
 106                 print "<div lang=\"en\" dir=\"ltr\">\n";
 107                 include(DOKU_INC.'inc/lang/en/install.html');
 108                 print "</div>\n";
 109             }
 110         ?>
 111     </div>
 112
 113     <div style="float: left; width: 58%;">
 114         <?php
 115             if(! (check_functions() && check_permissions()) ){
 116                 echo '<p>'.$lang['i_problems'].'</p>';
 117                 print_errors();
 118                 print_retry();
 119             }elseif(!check_configs()){
 120                 echo '<p>'.$lang['i_modified'].'</p>';
 121                 print_errors();
 122             }elseif($_REQUEST['submit']){
 123                 if(!check_data($_REQUEST['d'])){
 124                     print_errors();
 125                     print_form($_REQUEST['d']);
 126                 }elseif(!store_data($_REQUEST['d'])){
 127                     echo '<p>'.$lang['i_failure'].'</p>';
 128                     print_errors();
 129                 }else{
 130                     echo '<p>'.$lang['i_success'].'</p>';
 131                 }
 132             }else{
 133                 print_form($_REQUEST['d']);
 134             }
 135         ?>
 136     </div>
 137
 138 <div style="clear: both">
 139   <a href="http://dokuwiki.org/"><img src="lib/tpl/default/images/button-dw.png" alt="driven by DokuWiki" /></a>
 140   <a href="http://www.php.net"><img src="lib/tpl/default/images/button-php.gif" alt="powered by PHP" /></a>
 141 </div>
 142 </body>
 143 </html>
 144 <?php
 145
 146 /**
 147  * Print the input form
 148  */
 149 function print_form($d){
 150     global $lang;
 151     global $LC;
 152
 153     if(!is_array($d)) $d = array();
 154     $d = array_map('htmlspecialchars',$d);
 155
 156     if(!isset($d['acl'])) $d['acl']=1;
 157
 158     ?>
 159     <form action="" method="post">
 160     <input type="hidden" name="l" value="<?php echo $LC ?>" />
 161     <fieldset>
 162         <label for="title"><?php echo $lang['i_wikiname']?>
 163         <input type="text" name="d[title]" id="title" value="<?php echo $d['title'] ?>" style="width: 20em;" />
 164         </label>
 165
 166         <fieldset style="margin-top: 1em;">
 167             <label for="acl">
 168             <input type="checkbox" name="d[acl]" id="acl" <?php echo(($d['acl'] ? 'checked="checked"' : ''));?> />
 169             <?php echo $lang['i_enableacl']?></label>
 170
 171             <fieldset id="acldep">
 172                 <label for="superuser"><?php echo $lang['i_superuser']?></label>
 173                 <input class="text" type="text" name="d[superuser]" id="superuser" value="<?php echo $d['superuser'] ?>" />
 174
 175                 <label for="fullname"><?php echo $lang['fullname']?></label>
 176                 <input class="text" type="text" name="d[fullname]" id="fullname" value="<?php echo $d['fullname'] ?>" />
 177
 178                 <label for="email"><?php echo $lang['email']?></label>
 179                 <input class="text" type="text" name="d[email]" id="email" value="<?php echo $d['email'] ?>" />
 180
 181                 <label for="password"><?php echo $lang['pass']?></label>
 182                 <input class="text" type="password" name="d[password]" id="password" />
 183
 184                 <label for="confirm"><?php echo $lang['passchk']?></label>
 185                 <input class="text" type="password" name="d[confirm]" id="confirm" />
 186
 187                 <label for="policy"><?php echo $lang['i_policy']?></label>
 188                 <select class="text" name="d[policy]" id="policy">
 189                     <option value="0" <?php echo ($d['policy'] == 0)?'selected="selected"':'' ?>><?php echo $lang['i_pol0']?></option>
 190                     <option value="1" <?php echo ($d['policy'] == 1)?'selected="selected"':'' ?>><?php echo $lang['i_pol1']?></option>
 191                     <option value="2" <?php echo ($d['policy'] == 2)?'selected="selected"':'' ?>><?php echo $lang['i_pol2']?></option>
 192                 </select>
 193             </fieldset>
 194         </fieldset>
 195
 196     </fieldset>
 197     <fieldset id="process">
 198         <input class="button" type="submit" name="submit" value="<?php echo $lang['btn_save']?>" />
 199     </fieldset>
 200     </form>
 201     <?php
 202 }
 203
 204 function print_retry() {
 205     global $lang;
 206     global $LC;
 207     ?>
 208     <form action="" method="get">
 209       <fieldset>
 210         <input type="hidden" name="l" value="<?php echo $LC ?>" />
 211         <input class="button" type="submit" value="<?php echo $lang['i_retry'];?>" />
 212       </fieldset>
 213     </form>
 214     <?php
 215 }
 216
 217 /**
 218  * Check validity of data
 219  *
 220  * @author Andreas Gohr
 221  */
 222 function check_data(&$d){
 223     global $lang;
 224     global $error;
 225
 226     //autolowercase the username
 227     $d['superuser'] = strtolower($d['superuser']);
 228
 229     $ok = true;
 230
 231     // check input
 232     if(empty($d['title'])){
 233         $error[] = sprintf($lang['i_badval'],$lang['i_wikiname']);
 234         $ok      = false;
 235     }
 236     if($d['acl']){
 237         if(!preg_match('/^[a-z1-9_]+$/',$d['superuser'])){
 238             $error[] = sprintf($lang['i_badval'],$lang['i_superuser']);
 239             $ok      = false;
 240         }
 241         if(empty($d['password'])){
 242             $error[] = sprintf($lang['i_badval'],$lang['pass']);
 243             $ok      = false;
 244         }
 245         if($d['confirm'] != $d['password']){
 246             $error[] = sprintf($lang['i_badval'],$lang['passchk']);
 247             $ok      = false;
 248         }
 249         if(empty($d['fullname']) || strstr($d['fullname'],':')){
 250             $error[] = sprintf($lang['i_badval'],$lang['fullname']);
 251             $ok      = false;
 252         }
 253         if(empty($d['email']) || strstr($d['email'],':') || !strstr($d['email'],'@')){
 254             $error[] = sprintf($lang['i_badval'],$lang['email']);
 255             $ok      = false;
 256         }
 257     }
 258     return $ok;
 259 }
 260
 261 /**
 262  * Writes the data to the config files
 263  *
 264  * @author  Chris Smith <chris@jalakai.co.uk>
 265  */
 266 function store_data($d){
 267     global $LC;
 268     $ok = true;
 269     $d['policy'] = (int) $d['policy'];
 270
 271     // create local.php
 272     $now    = date('r');
 273     $output = <<<EOT
 274 <?php
 275 /**
 276  * Dokuwiki's Main Configuration File - Local Settings
 277  * Auto-generated by install script
 278  * Date: $now
 279  */
 280
 281 EOT;
 282     $output .= '$conf[\'title\'] = \''.addslashes($d['title'])."';\n";
 283     $output .= '$conf[\'lang\'] = \''.addslashes($LC)."';\n";
 284     if($d['acl']){
 285         $output .= '$conf[\'useacl\'] = 1'.";\n";
 286         $output .= "\$conf['superuser'] = '@admin';\n";
 287     }
 288     $ok = $ok && fileWrite(DOKU_LOCAL.'local.php',$output);
 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     // main dokuwiki config file (conf/dokuwiki.php) must not have been modified
 364     $installation_hash = md5(preg_replace("/(\015\012)|(\015)/","\012",
 365                              @file_get_contents(DOKU_CONF.'dokuwiki.php')));
 366     if (!in_array($installation_hash, $dokuwiki_hash)) {
 367         $error[] = sprintf($lang['i_badhash'],$installation_hash);
 368         $ok = false;
 369     }
 370
 371     // configs shouldn't exist
 372     foreach ($config_files as $file) {
 373         if (@file_exists($file)) {
 374             $file    = str_replace($_SERVER['DOCUMENT_ROOT'],'{DOCUMENT_ROOT}/', $file);
 375             $error[] = sprintf($lang['i_confexists'],$file);
 376             $ok      = false;
 377         }
 378     }
 379     return $ok;
 380 }
 381
 382
 383 /**
 384  * Check other installation dir/file permission requirements
 385  *
 386  * @author      Chris Smith <chris@jalakai.co.uk>
 387  */
 388 function check_permissions(){
 389     global $error;
 390     global $lang;
 391
 392     $dirs = array(
 393         'conf'      => DOKU_LOCAL,
 394         'data'      => DOKU_INC.'data',
 395         'pages'     => DOKU_INC.'data/pages',
 396         'attic'     => DOKU_INC.'data/attic',
 397         'media'     => DOKU_INC.'data/media',
 398         'meta'      => DOKU_INC.'data/meta',
 399         'cache'     => DOKU_INC.'data/cache',
 400         'locks'     => DOKU_INC.'data/locks',
 401         'index'     => DOKU_INC.'data/index',
 402         'tmp'       => DOKU_INC.'data/tmp'
 403     );
 404
 405     $ok = true;
 406     foreach($dirs as $dir){
 407         if(!@file_exists("$dir/.") || !@is_writable($dir)){
 408             $dir     = str_replace($_SERVER['DOCUMENT_ROOT'],'{DOCUMENT_ROOT}', $dir);
 409             $error[] = sprintf($lang['i_permfail'],$dir);
 410             $ok      = false;
 411         }
 412     }
 413     return $ok;
 414 }
 415
 416 /**
 417  * Check the availability of functions used in DokuWiki and the PHP version
 418  *
 419  * @author Andreas Gohr <andi@splitbrain.org>
 420  */
 421 function check_functions(){
 422     global $error;
 423     global $lang;
 424     $ok = true;
 425
 426     if(version_compare(phpversion(),'5.1.2','<')){
 427         $error[] = sprintf($lang['i_phpver'],phpversion(),'5.1.2');
 428         $ok = false;
 429     }
 430
 431     $funcs = explode(' ','addslashes basename call_user_func chmod copy fgets '.
 432                          'file file_exists fseek flush filesize ftell fopen '.
 433                          'glob header ignore_user_abort ini_get mail mkdir '.
 434                          'ob_start opendir parse_ini_file readfile realpath '.
 435                          'rename rmdir serialize session_start unlink usleep '.
 436                          'preg_replace file_get_contents htmlspecialchars_decode');
 437
 438     if (!function_exists('mb_substr')) {
 439         $funcs[] = 'utf8_encode';
 440         $funcs[] = 'utf8_decode';
 441     }
 442
 443     foreach($funcs as $func){
 444         if(!function_exists($func)){
 445             $error[] = sprintf($lang['i_funcna'],$func);
 446             $ok = false;
 447         }
 448     }
 449     return $ok;
 450 }
 451
 452 /**
 453  * Print language selection
 454  *
 455  * @author Andreas Gohr <andi@splitbrain.org>
 456  */
 457 function langsel(){
 458     global $lang;
 459     global $LC;
 460
 461     $dir = DOKU_INC.'inc/lang';
 462     $dh  = opendir($dir);
 463     if(!$dh) return;
 464
 465     $langs = array();
 466     while (($file = readdir($dh)) !== false) {
 467         if(preg_match('/^[\._]/',$file)) continue;
 468         if(is_dir($dir.'/'.$file) && @file_exists($dir.'/'.$file.'/lang.php')){
 469             $langs[] = $file;
 470         }
 471     }
 472     closedir($dh);
 473     sort($langs);
 474
 475     echo '<form action="">';
 476     echo $lang['i_chooselang'];
 477     echo ': <select name="l" onchange="submit()">';
 478     foreach($langs as $l){
 479         $sel = ($l == $LC) ? 'selected="selected"' : '';
 480         echo '<option value="'.$l.'" '.$sel.'>'.$l.'</option>';
 481     }
 482     echo '</select> ';
 483     echo '<input type="submit" value="'.$lang['btn_update'].'" />';
 484     echo '</form>';
 485 }
 486
 487 /**
 488  * Print global error array
 489  *
 490  * @author Andreas Gohr <andi@splitbrain.org>
 491  */
 492 function print_errors(){
 493     global $error;
 494     echo '<ul>';
 495     foreach ($error as $err){
 496         echo "<li>$err</li>";
 497     }
 498     echo '</ul>';
 499 }
 500
 501 /**
 502  * remove magic quotes recursivly
 503  *
 504  * @author Andreas Gohr <andi@splitbrain.org>
 505  */
 506 function remove_magic_quotes(&$array) {
 507     foreach (array_keys($array) as $key) {
 508         if (is_array($array[$key])) {
 509             remove_magic_quotes($array[$key]);
 510         }else {
 511             $array[$key] = stripslashes($array[$key]);
 512         }
 513     }
 514 }
 515