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>
  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>
  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/'.$LC.'/install.html');
  92             }else{
  93                 print "<div lang=\"en\" dir=\"ltr\">\n";
  94                 include(DOKU_INC.'inc/lang/en/install.html');
  95                 print "</div>\n";
  96             }
  97         ?>
  98         <a style="
  99                 background: transparent
 100                 url(data/dont-panic-if-you-see-this-in-your-logs-it-means-your-directory-permissions-are-correct.png)
 101                 left top no-repeat;
 102                 display: block; width:380px; height:73px; border:none; clear:both;"
 103            target="_blank"
 104            href="http://www.dokuwiki.org/security#web_access_security"></a>
 105     </div>
 106
 107     <div style="float: left; width: 58%;">
 108         <?php
 109             try {
 110                 if(! (check_functions() && check_permissions()) ){
 111                     echo '<p>'.$lang['i_problems'].'</p>';
 112                     print_errors();
 113                     print_retry();
 114                 }elseif(!check_configs()){
 115                     echo '<p>'.$lang['i_modified'].'</p>';
 116                     print_errors();
 117                 }elseif(check_data($_REQUEST['d'])){
 118                     // check_data has sanitized all input parameters
 119                     if(!store_data($_REQUEST['d'])){
 120                         echo '<p>'.$lang['i_failure'].'</p>';
 121                         print_errors();
 122                     }else{
 123                         echo '<p>'.$lang['i_success'].'</p>';
 124                     }
 125                 }else{
 126                     print_errors();
 127                     print_form($_REQUEST['d']);
 128                 }
 129             } catch (Exception $e) {
 130                 echo 'Caught exception: ',  $e->getMessage(), "\n";
 131             }
 132         ?>
 133     </div>
 134
 135
 136 <div style="clear: both">
 137   <a href="http://dokuwiki.org/"><img src="lib/tpl/dokuwiki/images/button-dw.png" alt="driven by DokuWiki" /></a>
 138   <a href="http://php.net"><img src="lib/tpl/dokuwiki/images/button-php.gif" alt="powered by PHP" /></a>
 139 </div>
 140 </body>
 141 </html>
 142 <?php
 143
 144 /**
 145  * Print the input form
 146  *
 147  * @param array $d submitted entry 'd' of request data
 148  */
 149 function print_form($d){
 150     global $lang;
 151     global $LC;
 152
 153     include(DOKU_CONF.'license.php');
 154
 155     if(!is_array($d)) $d = array();
 156     $d = array_map('hsc',$d);
 157
 158     if(!isset($d['acl'])) $d['acl']=1;
 159     if(!isset($d['pop'])) $d['pop']=1;
 160
 161     ?>
 162     <form action="" method="post">
 163     <input type="hidden" name="l" value="<?php echo $LC ?>" />
 164     <fieldset>
 165         <label for="title"><?php echo $lang['i_wikiname']?>
 166         <input type="text" name="d[title]" id="title" value="<?php echo $d['title'] ?>" style="width: 20em;" />
 167         </label>
 168
 169         <fieldset style="margin-top: 1em;">
 170             <label for="acl">
 171             <input type="checkbox" name="d[acl]" id="acl" <?php echo(($d['acl'] ? ' checked="checked"' : ''));?> />
 172             <?php echo $lang['i_enableacl']?></label>
 173
 174             <fieldset id="acldep">
 175                 <label for="superuser"><?php echo $lang['i_superuser']?></label>
 176                 <input class="text" type="text" name="d[superuser]" id="superuser"
 177                        value="<?php echo $d['superuser'] ?>" />
 178
 179                 <label for="fullname"><?php echo $lang['fullname']?></label>
 180                 <input class="text" type="text" name="d[fullname]" id="fullname"
 181                        value="<?php echo $d['fullname'] ?>" />
 182
 183                 <label for="email"><?php echo $lang['email']?></label>
 184                 <input class="text" type="text" name="d[email]" id="email" value="<?php echo $d['email'] ?>" />
 185
 186                 <label for="password"><?php echo $lang['pass']?></label>
 187                 <input class="text" type="password" name="d[password]" id="password" />
 188
 189                 <label for="confirm"><?php echo $lang['passchk']?></label>
 190                 <input class="text" type="password" name="d[confirm]" id="confirm" />
 191
 192                 <label for="policy"><?php echo $lang['i_policy']?></label>
 193                 <select class="text" name="d[policy]" id="policy">
 194                     <option value="0" <?php echo ($d['policy'] == 0)?'selected="selected"':'' ?>><?php
 195                         echo $lang['i_pol0']?></option>
 196                     <option value="1" <?php echo ($d['policy'] == 1)?'selected="selected"':'' ?>><?php
 197                         echo $lang['i_pol1']?></option>
 198                     <option value="2" <?php echo ($d['policy'] == 2)?'selected="selected"':'' ?>><?php
 199                         echo $lang['i_pol2']?></option>
 200                 </select>
 201
 202                 <label for="allowreg">
 203                     <input type="checkbox" name="d[allowreg]" id="allowreg" <?php
 204                         echo(($d['allowreg'] ? ' checked="checked"' : ''));?> />
 205                     <?php echo $lang['i_allowreg']?>
 206                 </label>
 207             </fieldset>
 208         </fieldset>
 209
 210         <fieldset>
 211             <p><?php echo $lang['i_license']?></p>
 212             <?php
 213             array_push($license,array('name' => $lang['i_license_none'], 'url'=>''));
 214             if(empty($d['license'])) $d['license'] = 'cc-by-sa';
 215             foreach($license as $key => $lic){
 216                 echo '<label for="lic_'.$key.'">';
 217                 echo '<input type="radio" name="d[license]" value="'.hsc($key).'" id="lic_'.$key.'"'.
 218                      (($d['license'] === $key)?' checked="checked"':'').'>';
 219                 echo hsc($lic['name']);
 220                 if($lic['url']) echo ' <a href="'.$lic['url'].'" target="_blank"><sup>[?]</sup></a>';
 221                 echo '</label>';
 222             }
 223             ?>
 224         </fieldset>
 225
 226         <fieldset>
 227             <p><?php echo $lang['i_pop_field']?></p>
 228             <label for="pop">
 229                 <input type="checkbox" name="d[pop]" id="pop" <?php
 230                     echo(($d['pop'] ? ' checked="checked"' : ''));?> />
 231                 <?php echo $lang['i_pop_label']?>
 232                 <a href="http://www.dokuwiki.org/popularity" target="_blank"><sup>[?]</sup></a>
 233             </label>
 234         </fieldset>
 235
 236     </fieldset>
 237     <fieldset id="process">
 238         <button type="submit" name="submit"><?php echo $lang['btn_save']?></button>
 239     </fieldset>
 240     </form>
 241     <?php
 242 }
 243
 244 function print_retry() {
 245     global $lang;
 246     global $LC;
 247     ?>
 248     <form action="" method="get">
 249       <fieldset>
 250         <input type="hidden" name="l" value="<?php echo $LC ?>" />
 251         <button type="submit"><?php echo $lang['i_retry'];?></button>
 252       </fieldset>
 253     </form>
 254     <?php
 255 }
 256
 257 /**
 258  * Check validity of data
 259  *
 260  * @author Andreas Gohr
 261  *
 262  * @param array $d
 263  * @return bool ok?
 264  */
 265 function check_data(&$d){
 266     static $form_default = array(
 267         'title'     => '',
 268         'acl'       => '1',
 269         'superuser' => '',
 270         'fullname'  => '',
 271         'email'     => '',
 272         'password'  => '',
 273         'confirm'   => '',
 274         'policy'    => '0',
 275         'allowreg'  => '0',
 276         'license'   => 'cc-by-sa'
 277     );
 278     global $lang;
 279     global $error;
 280
 281     if(!is_array($d)) $d = array();
 282     foreach($d as $k => $v) {
 283         if(is_array($v))
 284             unset($d[$k]);
 285         else
 286             $d[$k] = (string)$v;
 287     }
 288
 289     //autolowercase the username
 290     $d['superuser'] = isset($d['superuser']) ? strtolower($d['superuser']) : "";
 291
 292     $ok = false;
 293
 294     if(isset($_REQUEST['submit'])) {
 295         $ok = true;
 296
 297         // check input
 298         if(empty($d['title'])){
 299             $error[] = sprintf($lang['i_badval'],$lang['i_wikiname']);
 300             $ok      = false;
 301         }
 302         if(isset($d['acl'])){
 303             if(!preg_match('/^[a-z0-9_]+$/',$d['superuser'])){
 304                 $error[] = sprintf($lang['i_badval'],$lang['i_superuser']);
 305                 $ok      = false;
 306             }
 307             if(empty($d['password'])){
 308                 $error[] = sprintf($lang['i_badval'],$lang['pass']);
 309                 $ok      = false;
 310             }
 311             elseif(!isset($d['confirm']) || $d['confirm'] != $d['password']){
 312                 $error[] = sprintf($lang['i_badval'],$lang['passchk']);
 313                 $ok      = false;
 314             }
 315             if(empty($d['fullname']) || strstr($d['fullname'],':')){
 316                 $error[] = sprintf($lang['i_badval'],$lang['fullname']);
 317                 $ok      = false;
 318             }
 319             if(empty($d['email']) || strstr($d['email'],':') || !strstr($d['email'],'@')){
 320                 $error[] = sprintf($lang['i_badval'],$lang['email']);
 321                 $ok      = false;
 322             }
 323         }else{
 324             // Since default = 1, browser won't send acl=0 when user untick acl
 325             $d['acl'] = '0';
 326         }
 327     }
 328     $d = array_merge($form_default, $d);
 329     return $ok;
 330 }
 331
 332 /**
 333  * Writes the data to the config files
 334  *
 335  * @author  Chris Smith <chris@jalakai.co.uk>
 336  *
 337  * @param array $d
 338  * @return bool
 339  */
 340 function store_data($d){
 341     global $LC;
 342     $ok = true;
 343     $d['policy'] = (int) $d['policy'];
 344
 345     // create local.php
 346     $now    = gmdate('r');
 347     $output = <<<EOT
 348 <?php
 349 /**
 350  * Dokuwiki's Main Configuration File - Local Settings
 351  * Auto-generated by install script
 352  * Date: $now
 353  */
 354
 355 EOT;
 356     // add any config options set by a previous installer
 357     $preset = __DIR__.'/install.conf';
 358     if(file_exists($preset)){
 359         $output .= "# preset config options\n";
 360         $output .= file_get_contents($preset);
 361         $output .= "\n\n";
 362         $output .= "# options selected in installer\n";
 363         @unlink($preset);
 364     }
 365
 366     $output .= '$conf[\'title\'] = \''.addslashes($d['title'])."';\n";
 367     $output .= '$conf[\'lang\'] = \''.addslashes($LC)."';\n";
 368     $output .= '$conf[\'license\'] = \''.addslashes($d['license'])."';\n";
 369     if($d['acl']){
 370         $output .= '$conf[\'useacl\'] = 1'.";\n";
 371         $output .= "\$conf['superuser'] = '@admin';\n";
 372     }
 373     if(!$d['allowreg']){
 374         $output .= '$conf[\'disableactions\'] = \'register\''.";\n";
 375     }
 376     $ok = $ok && fileWrite(DOKU_LOCAL.'local.php',$output);
 377
 378     if ($d['acl']) {
 379         // hash the password
 380         $phash = new \dokuwiki\PassHash();
 381         $pass = $phash->hash_bcrypt($d['password']);
 382
 383         // create users.auth.php
 384         $output = <<<EOT
 385 # users.auth.php
 386 # <?php exit()?>
 387 # Don't modify the lines above
 388 #
 389 # Userfile
 390 #
 391 # Auto-generated by install script
 392 # Date: $now
 393 #
 394 # Format:
 395 # login:passwordhash:Real Name:email:groups,comma,separated
 396
 397 EOT;
 398         // --- user:bcryptpasswordhash:Real Name:email:groups,comma,seperated
 399         $output = $output."\n".join(":",array($d['superuser'], $pass, $d['fullname'], $d['email'], 'admin,user'))."\n";
 400         $ok = $ok && fileWrite(DOKU_LOCAL.'users.auth.php', $output);
 401
 402         // create acl.auth.php
 403         $output = <<<EOT
 404 # acl.auth.php
 405 # <?php exit()?>
 406 # Don't modify the lines above
 407 #
 408 # Access Control Lists
 409 #
 410 # Auto-generated by install script
 411 # Date: $now
 412
 413 EOT;
 414         if($d['policy'] == 2){
 415             $output .=  "*               @ALL          0\n";
 416             $output .=  "*               @user         8\n";
 417         }elseif($d['policy'] == 1){
 418             $output .=  "*               @ALL          1\n";
 419             $output .=  "*               @user         8\n";
 420         }else{
 421             $output .=  "*               @ALL          8\n";
 422         }
 423         $ok = $ok && fileWrite(DOKU_LOCAL.'acl.auth.php', $output);
 424     }
 425
 426     // enable popularity submission
 427     if($d['pop']){
 428         @touch(DOKU_INC.'data/cache/autosubmit.txt');
 429     }
 430
 431     // disable auth plugins til needed
 432     $output = <<<EOT
 433 <?php
 434 /*
 435  * Local plugin enable/disable settings
 436  *
 437  * Auto-generated by install script
 438  * Date: $now
 439  */
 440
 441 \$plugins['authad']    = 0;
 442 \$plugins['authldap']  = 0;
 443 \$plugins['authmysql'] = 0;
 444 \$plugins['authpgsql'] = 0;
 445
 446 EOT;
 447     $ok = $ok && fileWrite(DOKU_LOCAL.'plugins.local.php', $output);
 448
 449     return $ok;
 450 }
 451
 452 /**
 453  * Write the given content to a file
 454  *
 455  * @author  Chris Smith <chris@jalakai.co.uk>
 456  *
 457  * @param string $filename
 458  * @param string $data
 459  * @return bool
 460  */
 461 function fileWrite($filename, $data) {
 462     global $error;
 463     global $lang;
 464
 465     if (($fp = @fopen($filename, 'wb')) === false) {
 466         $filename = str_replace($_SERVER['DOCUMENT_ROOT'],'{DOCUMENT_ROOT}/', $filename);
 467         $error[]  = sprintf($lang['i_writeerr'],$filename);
 468         return false;
 469     }
 470
 471     if (!empty($data)) { fwrite($fp, $data);  }
 472     fclose($fp);
 473     return true;
 474 }
 475
 476
 477 /**
 478  * check installation dependent local config files and tests for a known
 479  * unmodified main config file
 480  *
 481  * @author      Chris Smith <chris@jalakai.co.uk>
 482  *
 483  * @return bool
 484  */
 485 function check_configs(){
 486     global $error;
 487     global $lang;
 488
 489     $ok = true;
 490
 491     $config_files = array(
 492         'local' => DOKU_LOCAL.'local.php',
 493         'users' => DOKU_LOCAL.'users.auth.php',
 494         'auth'  => DOKU_LOCAL.'acl.auth.php'
 495     );
 496
 497     // configs shouldn't exist
 498     foreach ($config_files as $file) {
 499         if (file_exists($file) && filesize($file)) {
 500             $file    = str_replace($_SERVER['DOCUMENT_ROOT'],'{DOCUMENT_ROOT}/', $file);
 501             $error[] = sprintf($lang['i_confexists'],$file);
 502             $ok      = false;
 503         }
 504     }
 505     return $ok;
 506 }
 507
 508
 509 /**
 510  * Check other installation dir/file permission requirements
 511  *
 512  * @author      Chris Smith <chris@jalakai.co.uk>
 513  *
 514  * @return bool
 515  */
 516 function check_permissions(){
 517     global $error;
 518     global $lang;
 519
 520     $dirs = array(
 521         'conf'        => DOKU_LOCAL,
 522         'data'        => DOKU_INC.'data',
 523         'pages'       => DOKU_INC.'data/pages',
 524         'attic'       => DOKU_INC.'data/attic',
 525         'media'       => DOKU_INC.'data/media',
 526         'media_attic' => DOKU_INC.'data/media_attic',
 527         'media_meta'  => DOKU_INC.'data/media_meta',
 528         'meta'        => DOKU_INC.'data/meta',
 529         'cache'       => DOKU_INC.'data/cache',
 530         'locks'       => DOKU_INC.'data/locks',
 531         'index'       => DOKU_INC.'data/index',
 532         'tmp'         => DOKU_INC.'data/tmp'
 533     );
 534
 535     $ok = true;
 536     foreach($dirs as $dir){
 537         if(!file_exists("$dir/.") || !is_writable($dir)){
 538             $dir     = str_replace($_SERVER['DOCUMENT_ROOT'],'{DOCUMENT_ROOT}', $dir);
 539             $error[] = sprintf($lang['i_permfail'],$dir);
 540             $ok      = false;
 541         }
 542     }
 543     return $ok;
 544 }
 545
 546 /**
 547  * Check the availability of functions used in DokuWiki and the PHP version
 548  *
 549  * @author Andreas Gohr <andi@splitbrain.org>
 550  *
 551  * @return bool
 552  */
 553 function check_functions(){
 554     global $error;
 555     global $lang;
 556     $ok = true;
 557
 558     if(version_compare(phpversion(),'5.6.0','<')){
 559         $error[] = sprintf($lang['i_phpver'],phpversion(),'5.6.0');
 560         $ok = false;
 561     }
 562
 563     if(ini_get('mbstring.func_overload') != 0){
 564         $error[] = $lang['i_mbfuncoverload'];
 565         $ok = false;
 566     }
 567
 568     try {
 569         random_bytes(1);
 570     } catch (\Exception $th) {
 571         // If an appropriate source of randomness cannot be found, an Exception will be thrown by PHP 7+
 572         // this exception is also thrown by paragonie/random_compat for PHP 5.6 support
 573         $error[] = $lang['i_urandom'];
 574         $ok = false;
 575     }
 576
 577     if(ini_get('mbstring.func_overload') != 0){
 578         $error[] = $lang['i_mbfuncoverload'];
 579         $ok = false;
 580     }
 581
 582     $funcs = explode(' ','addslashes call_user_func chmod copy fgets '.
 583                          'file file_exists fseek flush filesize ftell fopen '.
 584                          'glob header ignore_user_abort ini_get mkdir '.
 585                          'ob_start opendir parse_ini_file readfile realpath '.
 586                          'rename rmdir serialize session_start unlink usleep '.
 587                          'preg_replace file_get_contents htmlspecialchars_decode '.
 588                          'spl_autoload_register stream_select fsockopen pack xml_parser_create');
 589
 590     if (!function_exists('mb_substr')) {
 591         $funcs[] = 'utf8_encode';
 592         $funcs[] = 'utf8_decode';
 593     }
 594
 595     if(!function_exists('mail')){
 596         if(strpos(ini_get('disable_functions'),'mail') !== false) {
 597             $disabled = $lang['i_disabled'];
 598         }
 599         else {
 600             $disabled = "";
 601         }
 602         $error[] = sprintf($lang['i_funcnmail'],$disabled);
 603     }
 604
 605     foreach($funcs as $func){
 606         if(!function_exists($func)){
 607             $error[] = sprintf($lang['i_funcna'],$func);
 608             $ok = false;
 609         }
 610     }
 611     return $ok;
 612 }
 613
 614 /**
 615  * Print language selection
 616  *
 617  * @author Andreas Gohr <andi@splitbrain.org>
 618  */
 619 function langsel(){
 620     global $lang;
 621     global $LC;
 622
 623     $dir = DOKU_INC.'inc/lang';
 624     $dh  = opendir($dir);
 625     if(!$dh) return;
 626
 627     $langs = array();
 628     while (($file = readdir($dh)) !== false) {
 629         if(preg_match('/^[\._]/',$file)) continue;
 630         if(is_dir($dir.'/'.$file) && file_exists($dir.'/'.$file.'/lang.php')){
 631             $langs[] = $file;
 632         }
 633     }
 634     closedir($dh);
 635     sort($langs);
 636
 637     echo '<form action="">';
 638     echo $lang['i_chooselang'];
 639     echo ': <select name="l" onchange="submit()">';
 640     foreach($langs as $l){
 641         $sel = ($l == $LC) ? 'selected="selected"' : '';
 642         echo '<option value="'.$l.'" '.$sel.'>'.$l.'</option>';
 643     }
 644     echo '</select> ';
 645     echo '<button type="submit">'.$lang['btn_update'].'</button>';
 646     echo '</form>';
 647 }
 648
 649 /**
 650  * Print global error array
 651  *
 652  * @author Andreas Gohr <andi@splitbrain.org>
 653  */
 654 function print_errors(){
 655     global $error;
 656     if(!empty($error)) {
 657         echo '<ul>';
 658         foreach ($error as $err){
 659             echo "<li>$err</li>";
 660         }
 661         echo '</ul>';
 662     }
 663 }