install.php

   1 <?php
   2 /*><div style="width:60%; margin: auto; background-color: #fcc;
   3                 border: 1px solid #faa; padding: 0.5em 1em;">
   4     <h1 style="font-size: 120%">No PHP Support</h1>
   5
   6     It seems this server has no PHP support enabled. You will need to
   7     enable PHP before you can install and run DokuWiki. Contact your hosting
   8     provider if you're unsure what this means.
   9
  10 </div>*/
  11 /**
  12  * Dokuwiki installation assistance
  13  *
  14  * @author      Chris Smith <chris@jalakai.co.uk>
  15  */
  16
  17 if(!defined('DOKU_INC')) define('DOKU_INC',dirname(__FILE__).'/');
  18 if(!defined('DOKU_CONF')) define('DOKU_CONF',DOKU_INC.'conf/');
  19 if(!defined('DOKU_LOCAL')) define('DOKU_LOCAL',DOKU_INC.'conf/');
  20
  21 // load and initialize the core system
  22 require_once(DOKU_INC.'inc/init.php');
  23
  24 // check for error reporting override or set error reporting to sane values
  25 if (!defined('DOKU_E_LEVEL')) { error_reporting(E_ALL ^ E_NOTICE); }
  26 else { error_reporting(DOKU_E_LEVEL); }
  27
  28 // language strings
  29 require_once(DOKU_INC.'inc/lang/en/lang.php');
  30 if(isset($_REQUEST['l']) && !is_array($_REQUEST['l'])) {
  31     $LC = preg_replace('/[^a-z\-]+/','',$_REQUEST['l']);
  32 }
  33 if(empty($LC)) $LC = 'en';
  34 if($LC && $LC != 'en' ) {
  35     require_once(DOKU_INC.'inc/lang/'.$LC.'/lang.php');
  36 }
  37
  38 // initialise variables ...
  39 $error = array();
  40
  41 // begin output
  42 header('Content-Type: text/html; charset=utf-8');
  43 ?>
  44 <!DOCTYPE html>
  45 <html lang="<?php echo $LC?>" dir="<?php echo $lang['direction']?>">
  46 <head>
  47     <meta charset="utf-8" />
  48     <title><?php echo $lang['i_installer']?></title>
  49     <style type="text/css">
  50         body { width: 90%; margin: 0 auto; font: 84% Verdana, Helvetica, Arial, sans-serif; }
  51         img { border: none }
  52         br.cl { clear:both; }
  53         code { font-size: 110%; color: #800000; }
  54         fieldset { border: none }
  55         label { display: block; margin-top: 0.5em; }
  56         select.text, input.text { width: 30em; margin: 0 0.5em; }
  57         a {text-decoration: none}
  58     </style>
  59     <script type="text/javascript">
  60         function acltoggle(){
  61             var cb = document.getElementById('acl');
  62             var fs = document.getElementById('acldep');
  63             if(!cb || !fs) return;
  64             if(cb.checked){
  65                 fs.style.display = '';
  66             }else{
  67                 fs.style.display = 'none';
  68             }
  69         }
  70         window.onload = function(){
  71             acltoggle();
  72             var cb = document.getElementById('acl');
  73             if(cb) cb.onchange = acltoggle;
  74         };
  75     </script>
  76 </head>
  77 <body style="">
  78     <h1 style="float:left">
  79         <img src="lib/exe/fetch.php?media=wiki:dokuwiki-128.png"
  80              style="vertical-align: middle;" alt="" height="64" width="64" />
  81         <?php echo $lang['i_installer']?>
  82     </h1>
  83     <div style="float:right; margin: 1em;">
  84         <?php langsel()?>
  85     </div>
  86     <br class="cl" />
  87
  88     <div style="float: right; width: 34%;">
  89         <?php
  90             if(file_exists(DOKU_INC.'inc/lang/'.$LC.'/install.html')){
  91                 include(DOKU_INC.'inc/lang/'.$LC.'/install.html');
  92             }else{
  93                 print "<div lang=\"en\" dir=\"ltr\">\n";
  94                 include(DOKU_INC.'inc/lang/en/install.html');
  95                 print "</div>\n";
  96             }
  97         ?>
  98         <a style="background: transparent url(data/dont-panic-if-you-see-this-in-your-logs-it-means-your-directory-permissions-are-correct.png) left top no-repeat;
  99                   display: block; width:380px; height:73px; border:none; clear:both;"
 100            target="_blank"
 101            href="http://www.dokuwiki.org/security#web_access_security"></a>
 102     </div>
 103
 104     <div style="float: left; width: 58%;">
 105         <?php
 106             try {
 107                 if(! (check_functions() && check_permissions()) ){
 108                     echo '<p>'.$lang['i_problems'].'</p>';
 109                     print_errors();
 110                     print_retry();
 111                 }elseif(!check_configs()){
 112                     echo '<p>'.$lang['i_modified'].'</p>';
 113                     print_errors();
 114                 }elseif(check_data($_REQUEST['d'])){
 115                     // check_data has sanitized all input parameters
 116                     if(!store_data($_REQUEST['d'])){
 117                         echo '<p>'.$lang['i_failure'].'</p>';
 118                         print_errors();
 119                     }else{
 120                         echo '<p>'.$lang['i_success'].'</p>';
 121                     }
 122                 }else{
 123                     print_errors();
 124                     print_form($_REQUEST['d']);
 125                 }
 126             } catch (Exception $e) {
 127                 echo 'Caught exception: ',  $e->getMessage(), "\n";
 128             }
 129         ?>
 130     </div>
 131
 132
 133 <div style="clear: both">
 134   <a href="http://dokuwiki.org/"><img src="lib/tpl/dokuwiki/images/button-dw.png" alt="driven by DokuWiki" /></a>
 135   <a href="http://php.net"><img src="lib/tpl/dokuwiki/images/button-php.gif" alt="powered by PHP" /></a>
 136 </div>
 137 </body>
 138 </html>
 139 <?php
 140
 141 /**
 142  * Print the input form
 143  *
 144  * @param array $d submitted entry 'd' of request data
 145  */
 146 function print_form($d){
 147     global $lang;
 148     global $LC;
 149
 150     include(DOKU_CONF.'license.php');
 151
 152     if(!is_array($d)) $d = array();
 153     $d = array_map('hsc',$d);
 154
 155     if(!isset($d['acl'])) $d['acl']=1;
 156     if(!isset($d['pop'])) $d['pop']=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 $lang['i_pol2']?></option>
 192                 </select>
 193
 194                 <label for="allowreg">
 195                     <input type="checkbox" name="d[allowreg]" id="allowreg" <?php echo(($d['allowreg'] ? ' checked="checked"' : ''));?> />
 196                     <?php echo $lang['i_allowreg']?>
 197                 </label>
 198             </fieldset>
 199         </fieldset>
 200
 201         <fieldset>
 202             <p><?php echo $lang['i_license']?></p>
 203             <?php
 204             array_push($license,array('name' => $lang['i_license_none'], 'url'=>''));
 205             if(empty($d['license'])) $d['license'] = 'cc-by-sa';
 206             foreach($license as $key => $lic){
 207                 echo '<label for="lic_'.$key.'">';
 208                 echo '<input type="radio" name="d[license]" value="'.hsc($key).'" id="lic_'.$key.'"'.
 209                      (($d['license'] === $key)?' checked="checked"':'').'>';
 210                 echo hsc($lic['name']);
 211                 if($lic['url']) echo ' <a href="'.$lic['url'].'" target="_blank"><sup>[?]</sup></a>';
 212                 echo '</label>';
 213             }
 214             ?>
 215         </fieldset>
 216
 217         <fieldset>
 218             <p><?php echo $lang['i_pop_field']?></p>
 219             <label for="pop">
 220                 <input type="checkbox" name="d[pop]" id="pop" <?php echo(($d['pop'] ? ' checked="checked"' : ''));?> />
 221                 <?php echo $lang['i_pop_label']?> <a href="http://www.dokuwiki.org/popularity" target="_blank"><sup>[?]</sup></a>
 222             </label>
 223         </fieldset>
 224
 225     </fieldset>
 226     <fieldset id="process">
 227         <button type="submit" name="submit"><?php echo $lang['btn_save']?></button>
 228     </fieldset>
 229     </form>
 230     <?php
 231 }
 232
 233 function print_retry() {
 234     global $lang;
 235     global $LC;
 236     ?>
 237     <form action="" method="get">
 238       <fieldset>
 239         <input type="hidden" name="l" value="<?php echo $LC ?>" />
 240         <button type="submit"><?php echo $lang['i_retry'];?></button>
 241       </fieldset>
 242     </form>
 243     <?php
 244 }
 245
 246 /**
 247  * Check validity of data
 248  *
 249  * @author Andreas Gohr
 250  *
 251  * @param array $d
 252  * @return bool ok?
 253  */
 254 function check_data(&$d){
 255     static $form_default = array(
 256         'title'     => '',
 257         'acl'       => '1',
 258         'superuser' => '',
 259         'fullname'  => '',
 260         'email'     => '',
 261         'password'  => '',
 262         'confirm'   => '',
 263         'policy'    => '0',
 264         'allowreg'  => '0',
 265         'license'   => 'cc-by-sa'
 266     );
 267     global $lang;
 268     global $error;
 269
 270     if(!is_array($d)) $d = array();
 271     foreach($d as $k => $v) {
 272         if(is_array($v))
 273             unset($d[$k]);
 274         else
 275             $d[$k] = (string)$v;
 276     }
 277
 278     //autolowercase the username
 279     $d['superuser'] = isset($d['superuser']) ? strtolower($d['superuser']) : "";
 280
 281     $ok = false;
 282
 283     if(isset($_REQUEST['submit'])) {
 284         $ok = true;
 285
 286         // check input
 287         if(empty($d['title'])){
 288             $error[] = sprintf($lang['i_badval'],$lang['i_wikiname']);
 289             $ok      = false;
 290         }
 291         if(isset($d['acl'])){
 292             if(!preg_match('/^[a-z0-9_]+$/',$d['superuser'])){
 293                 $error[] = sprintf($lang['i_badval'],$lang['i_superuser']);
 294                 $ok      = false;
 295             }
 296             if(empty($d['password'])){
 297                 $error[] = sprintf($lang['i_badval'],$lang['pass']);
 298                 $ok      = false;
 299             }
 300             elseif(!isset($d['confirm']) || $d['confirm'] != $d['password']){
 301                 $error[] = sprintf($lang['i_badval'],$lang['passchk']);
 302                 $ok      = false;
 303             }
 304             if(empty($d['fullname']) || strstr($d['fullname'],':')){
 305                 $error[] = sprintf($lang['i_badval'],$lang['fullname']);
 306                 $ok      = false;
 307             }
 308             if(empty($d['email']) || strstr($d['email'],':') || !strstr($d['email'],'@')){
 309                 $error[] = sprintf($lang['i_badval'],$lang['email']);
 310                 $ok      = false;
 311             }
 312         }
 313     }
 314     $d = array_merge($form_default, $d);
 315     return $ok;
 316 }
 317
 318 /**
 319  * Writes the data to the config files
 320  *
 321  * @author  Chris Smith <chris@jalakai.co.uk>
 322  *
 323  * @param array $d
 324  * @return bool
 325  */
 326 function store_data($d){
 327     global $LC;
 328     $ok = true;
 329     $d['policy'] = (int) $d['policy'];
 330
 331     // create local.php
 332     $now    = gmdate('r');
 333     $output = <<<EOT
 334 <?php
 335 /**
 336  * Dokuwiki's Main Configuration File - Local Settings
 337  * Auto-generated by install script
 338  * Date: $now
 339  */
 340
 341 EOT;
 342     // add any config options set by a previous installer
 343     $preset = __DIR__.'/install.conf';
 344     if(file_exists($preset)){
 345         $output .= "# preset config options\n";
 346         $output .= file_get_contents($preset);
 347         $output .= "\n\n";
 348         $output .= "# options selected in installer\n";
 349         @unlink($preset);
 350     }
 351
 352     $output .= '$conf[\'title\'] = \''.addslashes($d['title'])."';\n";
 353     $output .= '$conf[\'lang\'] = \''.addslashes($LC)."';\n";
 354     $output .= '$conf[\'license\'] = \''.addslashes($d['license'])."';\n";
 355     if($d['acl']){
 356         $output .= '$conf[\'useacl\'] = 1'.";\n";
 357         $output .= "\$conf['superuser'] = '@admin';\n";
 358     }
 359     if(!$d['allowreg']){
 360         $output .= '$conf[\'disableactions\'] = \'register\''.";\n";
 361     }
 362     $ok = $ok && fileWrite(DOKU_LOCAL.'local.php',$output);
 363
 364     if ($d['acl']) {
 365         // hash the password
 366         $phash = new PassHash();
 367         $pass = $phash->hash_smd5($d['password']);
 368
 369         // create users.auth.php
 370         // --- user:SMD5password:Real Name:email:groups,comma,seperated
 371         $output = join(":",array($d['superuser'], $pass, $d['fullname'], $d['email'], 'admin,user'));
 372         $output = @file_get_contents(DOKU_CONF.'users.auth.php.dist')."\n$output\n";
 373         $ok = $ok && fileWrite(DOKU_LOCAL.'users.auth.php', $output);
 374
 375         // create acl.auth.php
 376         $output = <<<EOT
 377 # acl.auth.php
 378 # <?php exit()?>
 379 # Don't modify the lines above
 380 #
 381 # Access Control Lists
 382 #
 383 # Auto-generated by install script
 384 # Date: $now
 385
 386 EOT;
 387         if($d['policy'] == 2){
 388             $output .=  "*               @ALL          0\n";
 389             $output .=  "*               @user         8\n";
 390         }elseif($d['policy'] == 1){
 391             $output .=  "*               @ALL          1\n";
 392             $output .=  "*               @user         8\n";
 393         }else{
 394             $output .=  "*               @ALL          8\n";
 395         }
 396         $ok = $ok && fileWrite(DOKU_LOCAL.'acl.auth.php', $output);
 397     }
 398
 399     // enable popularity submission
 400     if($d['pop']){
 401         @touch(DOKU_INC.'data/cache/autosubmit.txt');
 402     }
 403
 404     // disable auth plugins til needed
 405     $output = <<<EOT
 406 <?php
 407 /*
 408  * Local plugin enable/disable settings
 409  *
 410  * Auto-generated by install script
 411  * Date: $now
 412  */
 413
 414 \$plugins['authad']    = 0;
 415 \$plugins['authldap']  = 0;
 416 \$plugins['authmysql'] = 0;
 417 \$plugins['authpgsql'] = 0;
 418
 419 EOT;
 420     $ok = $ok && fileWrite(DOKU_LOCAL.'plugins.local.php', $output);
 421
 422     return $ok;
 423 }
 424
 425 /**
 426  * Write the given content to a file
 427  *
 428  * @author  Chris Smith <chris@jalakai.co.uk>
 429  *
 430  * @param string $filename
 431  * @param string $data
 432  * @return bool
 433  */
 434 function fileWrite($filename, $data) {
 435     global $error;
 436     global $lang;
 437
 438     if (($fp = @fopen($filename, 'wb')) === false) {
 439         $filename = str_replace($_SERVER['DOCUMENT_ROOT'],'{DOCUMENT_ROOT}/', $filename);
 440         $error[]  = sprintf($lang['i_writeerr'],$filename);
 441         return false;
 442     }
 443
 444     if (!empty($data)) { fwrite($fp, $data);  }
 445     fclose($fp);
 446     return true;
 447 }
 448
 449
 450 /**
 451  * check installation dependent local config files and tests for a known
 452  * unmodified main config file
 453  *
 454  * @author      Chris Smith <chris@jalakai.co.uk>
 455  *
 456  * @return bool
 457  */
 458 function check_configs(){
 459     global $error;
 460     global $lang;
 461
 462     $ok = true;
 463
 464     $config_files = array(
 465         'local' => DOKU_LOCAL.'local.php',
 466         'users' => DOKU_LOCAL.'users.auth.php',
 467         'auth'  => DOKU_LOCAL.'acl.auth.php'
 468     );
 469
 470     // configs shouldn't exist
 471     foreach ($config_files as $file) {
 472         if (file_exists($file) && filesize($file)) {
 473             $file    = str_replace($_SERVER['DOCUMENT_ROOT'],'{DOCUMENT_ROOT}/', $file);
 474             $error[] = sprintf($lang['i_confexists'],$file);
 475             $ok      = false;
 476         }
 477     }
 478     return $ok;
 479 }
 480
 481
 482 /**
 483  * Check other installation dir/file permission requirements
 484  *
 485  * @author      Chris Smith <chris@jalakai.co.uk>
 486  *
 487  * @return bool
 488  */
 489 function check_permissions(){
 490     global $error;
 491     global $lang;
 492
 493     $dirs = array(
 494         'conf'        => DOKU_LOCAL,
 495         'data'        => DOKU_INC.'data',
 496         'pages'       => DOKU_INC.'data/pages',
 497         'attic'       => DOKU_INC.'data/attic',
 498         'media'       => DOKU_INC.'data/media',
 499         'media_attic' => DOKU_INC.'data/media_attic',
 500         'media_meta'  => DOKU_INC.'data/media_meta',
 501         'meta'        => DOKU_INC.'data/meta',
 502         'cache'       => DOKU_INC.'data/cache',
 503         'locks'       => DOKU_INC.'data/locks',
 504         'index'       => DOKU_INC.'data/index',
 505         'tmp'         => DOKU_INC.'data/tmp'
 506     );
 507
 508     $ok = true;
 509     foreach($dirs as $dir){
 510         if(!file_exists("$dir/.") || !is_writable($dir)){
 511             $dir     = str_replace($_SERVER['DOCUMENT_ROOT'],'{DOCUMENT_ROOT}', $dir);
 512             $error[] = sprintf($lang['i_permfail'],$dir);
 513             $ok      = false;
 514         }
 515     }
 516     return $ok;
 517 }
 518
 519 /**
 520  * Check the availability of functions used in DokuWiki and the PHP version
 521  *
 522  * @author Andreas Gohr <andi@splitbrain.org>
 523  *
 524  * @return bool
 525  */
 526 function check_functions(){
 527     global $error;
 528     global $lang;
 529     $ok = true;
 530
 531     if(version_compare(phpversion(),'5.6.0','<')){
 532         $error[] = sprintf($lang['i_phpver'],phpversion(),'5.6.0');
 533         $ok = false;
 534     }
 535
 536     if(ini_get('mbstring.func_overload') != 0){
 537         $error[] = $lang['i_mbfuncoverload'];
 538         $ok = false;
 539     }
 540
 541     $funcs = explode(' ','addslashes call_user_func chmod copy fgets '.
 542                          'file file_exists fseek flush filesize ftell fopen '.
 543                          'glob header ignore_user_abort ini_get mail mkdir '.
 544                          'ob_start opendir parse_ini_file readfile realpath '.
 545                          'rename rmdir serialize session_start unlink usleep '.
 546                          'preg_replace file_get_contents htmlspecialchars_decode '.
 547                          'spl_autoload_register stream_select fsockopen pack');
 548
 549     if (!function_exists('mb_substr')) {
 550         $funcs[] = 'utf8_encode';
 551         $funcs[] = 'utf8_decode';
 552     }
 553
 554     foreach($funcs as $func){
 555         if(!function_exists($func)){
 556             $error[] = sprintf($lang['i_funcna'],$func);
 557             $ok = false;
 558         }
 559     }
 560     return $ok;
 561 }
 562
 563 /**
 564  * Print language selection
 565  *
 566  * @author Andreas Gohr <andi@splitbrain.org>
 567  */
 568 function langsel(){
 569     global $lang;
 570     global $LC;
 571
 572     $dir = DOKU_INC.'inc/lang';
 573     $dh  = opendir($dir);
 574     if(!$dh) return;
 575
 576     $langs = array();
 577     while (($file = readdir($dh)) !== false) {
 578         if(preg_match('/^[\._]/',$file)) continue;
 579         if(is_dir($dir.'/'.$file) && file_exists($dir.'/'.$file.'/lang.php')){
 580             $langs[] = $file;
 581         }
 582     }
 583     closedir($dh);
 584     sort($langs);
 585
 586     echo '<form action="">';
 587     echo $lang['i_chooselang'];
 588     echo ': <select name="l" onchange="submit()">';
 589     foreach($langs as $l){
 590         $sel = ($l == $LC) ? 'selected="selected"' : '';
 591         echo '<option value="'.$l.'" '.$sel.'>'.$l.'</option>';
 592     }
 593     echo '</select> ';
 594     echo '<button type="submit">'.$lang['btn_update'].'</button>';
 595     echo '</form>';
 596 }
 597
 598 /**
 599  * Print global error array
 600  *
 601  * @author Andreas Gohr <andi@splitbrain.org>
 602  */
 603 function print_errors(){
 604     global $error;
 605     if(!empty($error)) {
 606         echo '<ul>';
 607         foreach ($error as $err){
 608             echo "<li>$err</li>";
 609         }
 610         echo '</ul>';
 611     }
 612 }