xref: /dokuwiki/install.php (revision 84c50c494ac3b4f524ce81304691d7fed3975b68) 
1<?php
2/**
3 * Dokuwiki installation assistance
4 *
5 * @author      Chris Smith <chris@jalakai.co.uk>
6 */
7
8if(!defined('DOKU_INC')) define('DOKU_INC',dirname(__FILE__).'/');
9if(!defined('DOKU_CONF')) define('DOKU_CONF',DOKU_INC.'conf/');
10if(!defined('DOKU_LOCAL')) define('DOKU_LOCAL',DOKU_INC.'conf/');
11
12require_once(DOKU_INC.'inc/PassHash.class.php');
13
14// check for error reporting override or set error reporting to sane values
15if (!defined('DOKU_E_LEVEL')) { error_reporting(E_ALL ^ E_NOTICE); }
16else { error_reporting(DOKU_E_LEVEL); }
17
18// kill magic quotes
19if (get_magic_quotes_gpc() && !defined('MAGIC_QUOTES_STRIPPED')) {
20    if (!empty($_GET))    remove_magic_quotes($_GET);
21    if (!empty($_POST))   remove_magic_quotes($_POST);
22    if (!empty($_COOKIE)) remove_magic_quotes($_COOKIE);
23    if (!empty($_REQUEST)) remove_magic_quotes($_REQUEST);
24    @ini_set('magic_quotes_gpc', 0);
25    define('MAGIC_QUOTES_STRIPPED',1);
26}
27if (function_exists('set_magic_quotes_runtime')) @set_magic_quotes_runtime(0);
28@ini_set('magic_quotes_sybase',0);
29
30// language strings
31require_once(DOKU_INC.'inc/lang/en/lang.php');
32if(isset($_REQUEST['l']) && !is_array($_REQUEST['l'])) {
33    $LC = preg_replace('/[^a-z\-]+/','',$_REQUEST['l']);
34}
35if(empty($LC)) $LC = 'en';
36if($LC && $LC != 'en' ) {
37    require_once(DOKU_INC.'inc/lang/'.$LC.'/lang.php');
38}
39
40// initialise variables ...
41$error = array();
42
43$dokuwiki_hash = array(
44    '2005-09-22'   => 'e33223e957b0b0a130d0520db08f8fb7',
45    '2006-03-05'   => '51295727f79ab9af309a2fd9e0b61acc',
46    '2006-03-09'   => '51295727f79ab9af309a2fd9e0b61acc',
47    '2006-11-06'   => 'b3a8af76845977c2000d85d6990dd72b',
48    '2007-05-24'   => 'd80f2740c84c4a6a791fd3c7a353536f',
49    '2007-06-26'   => 'b3ca19c7a654823144119980be73cd77',
50    '2008-05-04'   => '1e5c42eac3219d9e21927c39e3240aad',
51    '2009-02-14'   => 'ec8c04210732a14fdfce0f7f6eead865',
52    '2009-12-25'   => '993c4b2b385643efe5abf8e7010e11f4',
53    '2010-11-07'   => '7921d48195f4db21b8ead6d9bea801b8',
54    '2011-05-25'   => '4241865472edb6fa14a1227721008072',
55    '2011-11-10'   => 'b46ff19a7587966ac4df61cbab1b8b31',
56    '2012-01-25'   => '72c083c73608fc43c586901fd5dabb74',
57    '2012-09-10'   => 'eb0b3fc90056fbc12bac6f49f7764df3',
58    '2013-05-10'   => '7b62b75245f57f122d3e0f8ed7989623',
59    '2013-12-08'   => '263c76af309fbf083867c18a34ff5214',
60    '2014-05-05'   => '263c76af309fbf083867c18a34ff5214',
61);
62
63
64// begin output
65header('Content-Type: text/html; charset=utf-8');
66?>
67<!DOCTYPE html>
68<html lang="<?php echo $LC?>" dir="<?php echo $lang['direction']?>">
69<head>
70    <meta charset="utf-8" />
71    <title><?php echo $lang['i_installer']?></title>
72    <style type="text/css">
73        body { width: 90%; margin: 0 auto; font: 84% Verdana, Helvetica, Arial, sans-serif; }
74        img { border: none }
75        br.cl { clear:both; }
76        code { font-size: 110%; color: #800000; }
77        fieldset { border: none }
78        label { display: block; margin-top: 0.5em; }
79        select.text, input.text { width: 30em; margin: 0 0.5em; }
80        a {text-decoration: none}
81    </style>
82    <script type="text/javascript">
83        function acltoggle(){
84            var cb = document.getElementById('acl');
85            var fs = document.getElementById('acldep');
86            if(!cb || !fs) return;
87            if(cb.checked){
88                fs.style.display = '';
89            }else{
90                fs.style.display = 'none';
91            }
92        }
93        window.onload = function(){
94            acltoggle();
95            var cb = document.getElementById('acl');
96            if(cb) cb.onchange = acltoggle;
97        };
98    </script>
99</head>
100<body style="">
101    <h1 style="float:left">
102        <img src="lib/exe/fetch.php?media=wiki:dokuwiki-128.png"
103             style="vertical-align: middle;" alt="" height="64" width="64" />
104        <?php echo $lang['i_installer']?>
105    </h1>
106    <div style="float:right; margin: 1em;">
107        <?php langsel()?>
108    </div>
109    <br class="cl" />
110
111    <div style="float: right; width: 34%;">
112        <?php
113            if(@file_exists(DOKU_INC.'inc/lang/'.$LC.'/install.html')){
114                include(DOKU_INC.'inc/lang/'.$LC.'/install.html');
115            }else{
116                print "<div lang=\"en\" dir=\"ltr\">\n";
117                include(DOKU_INC.'inc/lang/en/install.html');
118                print "</div>\n";
119            }
120        ?>
121        <a style="background: transparent url(data/security.png) left top no-repeat;
122                  display: block; width:380px; height:73px; border:none; clear:both;"
123           target="_blank"
124           href="http://www.dokuwiki.org/security#web_access_security"></a>
125    </div>
126
127    <div style="float: left; width: 58%;">
128        <?php
129            if(! (check_functions() && check_permissions()) ){
130                echo '<p>'.$lang['i_problems'].'</p>';
131                print_errors();
132                print_retry();
133            }elseif(!check_configs()){
134                echo '<p>'.$lang['i_modified'].'</p>';
135                print_errors();
136            }elseif(check_data($_REQUEST['d'])){
137                // check_data has sanitized all input parameters
138                if(!store_data($_REQUEST['d'])){
139                    echo '<p>'.$lang['i_failure'].'</p>';
140                    print_errors();
141                }else{
142                    echo '<p>'.$lang['i_success'].'</p>';
143                }
144            }else{
145                print_errors();
146                print_form($_REQUEST['d']);
147            }
148        ?>
149    </div>
150
151
152<div style="clear: both">
153  <a href="http://dokuwiki.org/"><img src="lib/tpl/dokuwiki/images/button-dw.png" alt="driven by DokuWiki" /></a>
154  <a href="http://www.php.net"><img src="lib/tpl/dokuwiki/images/button-php.gif" alt="powered by PHP" /></a>
155</div>
156</body>
157</html>
158<?php
159
160/**
161 * Print the input form
162 */
163function print_form($d){
164    global $lang;
165    global $LC;
166
167    include(DOKU_CONF.'license.php');
168
169    if(!is_array($d)) $d = array();
170    $d = array_map('htmlspecialchars',$d);
171
172    if(!isset($d['acl'])) $d['acl']=1;
173    if(!isset($d['pop'])) $d['pop']=1;
174
175    ?>
176    <form action="" method="post">
177    <input type="hidden" name="l" value="<?php echo $LC ?>" />
178    <fieldset>
179        <label for="title"><?php echo $lang['i_wikiname']?>
180        <input type="text" name="d[title]" id="title" value="<?php echo $d['title'] ?>" style="width: 20em;" />
181        </label>
182
183        <fieldset style="margin-top: 1em;">
184            <label for="acl">
185            <input type="checkbox" name="d[acl]" id="acl" <?php echo(($d['acl'] ? ' checked="checked"' : ''));?> />
186            <?php echo $lang['i_enableacl']?></label>
187
188            <fieldset id="acldep">
189                <label for="superuser"><?php echo $lang['i_superuser']?></label>
190                <input class="text" type="text" name="d[superuser]" id="superuser" value="<?php echo $d['superuser'] ?>" />
191
192                <label for="fullname"><?php echo $lang['fullname']?></label>
193                <input class="text" type="text" name="d[fullname]" id="fullname" value="<?php echo $d['fullname'] ?>" />
194
195                <label for="email"><?php echo $lang['email']?></label>
196                <input class="text" type="text" name="d[email]" id="email" value="<?php echo $d['email'] ?>" />
197
198                <label for="password"><?php echo $lang['pass']?></label>
199                <input class="text" type="password" name="d[password]" id="password" />
200
201                <label for="confirm"><?php echo $lang['passchk']?></label>
202                <input class="text" type="password" name="d[confirm]" id="confirm" />
203
204                <label for="policy"><?php echo $lang['i_policy']?></label>
205                <select class="text" name="d[policy]" id="policy">
206                    <option value="0" <?php echo ($d['policy'] == 0)?'selected="selected"':'' ?>><?php echo $lang['i_pol0']?></option>
207                    <option value="1" <?php echo ($d['policy'] == 1)?'selected="selected"':'' ?>><?php echo $lang['i_pol1']?></option>
208                    <option value="2" <?php echo ($d['policy'] == 2)?'selected="selected"':'' ?>><?php echo $lang['i_pol2']?></option>
209                </select>
210
211                <label for="allowreg">
212                    <input type="checkbox" name="d[allowreg]" id="allowreg" <?php echo(($d['allowreg'] ? ' checked="checked"' : ''));?> />
213                    <?php echo $lang['i_allowreg']?>
214                </label>
215            </fieldset>
216        </fieldset>
217
218        <fieldset>
219            <p><?php echo $lang['i_license']?></p>
220            <?php
221            array_push($license,array('name' => $lang['i_license_none'], 'url'=>''));
222            if(empty($d['license'])) $d['license'] = 'cc-by-sa';
223            foreach($license as $key => $lic){
224                echo '<label for="lic_'.$key.'">';
225                echo '<input type="radio" name="d[license]" value="'.htmlspecialchars($key).'" id="lic_'.$key.'"'.
226                     (($d['license'] === $key)?' checked="checked"':'').'>';
227                echo htmlspecialchars($lic['name']);
228                if($lic['url']) echo ' <a href="'.$lic['url'].'" target="_blank"><sup>[?]</sup></a>';
229                echo '</label>';
230            }
231            ?>
232        </fieldset>
233
234        <fieldset>
235            <p><?php echo $lang['i_pop_field']?></p>
236            <label for="pop">
237                <input type="checkbox" name="d[pop]" id="pop" <?php echo(($d['pop'] ? ' checked="checked"' : ''));?> />
238                <?php echo $lang['i_pop_label']?> <a href="http://www.dokuwiki.org/popularity" target="_blank"><sup>[?]</sup></a>
239            </label>
240        </fieldset>
241
242    </fieldset>
243    <fieldset id="process">
244        <input class="button" type="submit" name="submit" value="<?php echo $lang['btn_save']?>" />
245    </fieldset>
246    </form>
247    <?php
248}
249
250function print_retry() {
251    global $lang;
252    global $LC;
253    ?>
254    <form action="" method="get">
255      <fieldset>
256        <input type="hidden" name="l" value="<?php echo $LC ?>" />
257        <input class="button" type="submit" value="<?php echo $lang['i_retry'];?>" />
258      </fieldset>
259    </form>
260    <?php
261}
262
263/**
264 * Check validity of data
265 *
266 * @author Andreas Gohr
267 */
268function check_data(&$d){
269    static $form_default = array(
270        'title'     => '',
271        'acl'       => '1',
272        'superuser' => '',
273        'fullname'  => '',
274        'email'     => '',
275        'password'  => '',
276        'confirm'   => '',
277        'policy'    => '0',
278        'allowreg'  => '0',
279        'license'   => 'cc-by-sa'
280    );
281    global $lang;
282    global $error;
283
284    if(!is_array($d)) $d = array();
285    foreach($d as $k => $v) {
286        if(is_array($v))
287            unset($d[$k]);
288        else
289            $d[$k] = (string)$v;
290    }
291
292    //autolowercase the username
293    $d['superuser'] = isset($d['superuser']) ? strtolower($d['superuser']) : "";
294
295    $ok = false;
296
297    if(isset($_REQUEST['submit'])) {
298        $ok = true;
299
300        // check input
301        if(empty($d['title'])){
302            $error[] = sprintf($lang['i_badval'],$lang['i_wikiname']);
303            $ok      = false;
304        }
305        if(isset($d['acl'])){
306            if(!preg_match('/^[a-z0-9_]+$/',$d['superuser'])){
307                $error[] = sprintf($lang['i_badval'],$lang['i_superuser']);
308                $ok      = false;
309            }
310            if(empty($d['password'])){
311                $error[] = sprintf($lang['i_badval'],$lang['pass']);
312                $ok      = false;
313            }
314            elseif(!isset($d['confirm']) || $d['confirm'] != $d['password']){
315                $error[] = sprintf($lang['i_badval'],$lang['passchk']);
316                $ok      = false;
317            }
318            if(empty($d['fullname']) || strstr($d['fullname'],':')){
319                $error[] = sprintf($lang['i_badval'],$lang['fullname']);
320                $ok      = false;
321            }
322            if(empty($d['email']) || strstr($d['email'],':') || !strstr($d['email'],'@')){
323                $error[] = sprintf($lang['i_badval'],$lang['email']);
324                $ok      = false;
325            }
326        }
327    }
328    $d = array_merge($form_default, $d);
329    return $ok;
330}
331
332/**
333 * Writes the data to the config files
334 *
335 * @author  Chris Smith <chris@jalakai.co.uk>
336 */
337function store_data($d){
338    global $LC;
339    $ok = true;
340    $d['policy'] = (int) $d['policy'];
341
342    // create local.php
343    $now    = gmdate('r');
344    $output = <<<EOT
345<?php
346/**
347 * Dokuwiki's Main Configuration File - Local Settings
348 * Auto-generated by install script
349 * Date: $now
350 */
351
352EOT;
353    $output .= '$conf[\'title\'] = \''.addslashes($d['title'])."';\n";
354    $output .= '$conf[\'lang\'] = \''.addslashes($LC)."';\n";
355    $output .= '$conf[\'license\'] = \''.addslashes($d['license'])."';\n";
356    if($d['acl']){
357        $output .= '$conf[\'useacl\'] = 1'.";\n";
358        $output .= "\$conf['superuser'] = '@admin';\n";
359    }
360    if(!$d['allowreg']){
361        $output .= '$conf[\'disableactions\'] = \'register\''.";\n";
362    }
363    $ok = $ok && fileWrite(DOKU_LOCAL.'local.php',$output);
364
365    if ($d['acl']) {
366        // hash the password
367        $phash = new PassHash();
368        $pass = $phash->hash_smd5($d['password']);
369
370        // create users.auth.php
371        // --- user:SMD5password:Real Name:email:groups,comma,seperated
372        $output = join(":",array($d['superuser'], $pass, $d['fullname'], $d['email'], 'admin,user'));
373        $output = @file_get_contents(DOKU_CONF.'users.auth.php.dist')."\n$output\n";
374        $ok = $ok && fileWrite(DOKU_LOCAL.'users.auth.php', $output);
375
376        // create acl.auth.php
377        $output = <<<EOT
378# acl.auth.php
379# <?php exit()?>
380# Don't modify the lines above
381#
382# Access Control Lists
383#
384# Auto-generated by install script
385# Date: $now
386
387EOT;
388        if($d['policy'] == 2){
389            $output .=  "*               @ALL          0\n";
390            $output .=  "*               @user         8\n";
391        }elseif($d['policy'] == 1){
392            $output .=  "*               @ALL          1\n";
393            $output .=  "*               @user         8\n";
394        }else{
395            $output .=  "*               @ALL          8\n";
396        }
397        $ok = $ok && fileWrite(DOKU_LOCAL.'acl.auth.php', $output);
398    }
399
400    // enable popularity submission
401    if($d['pop']){
402        @touch(DOKU_INC.'data/cache/autosubmit.txt');
403    }
404
405    // disable auth plugins til needed
406    $output = <<<EOT
407<?php
408/*
409 * Local plugin enable/disable settings
410 *
411 * Auto-generated by install script
412 * Date: $now
413 */
414
415\$plugins['authad']    = 0;
416\$plugins['authldap']  = 0;
417\$plugins['authmysql'] = 0;
418\$plugins['authpgsql'] = 0;
419
420EOT;
421    $ok = $ok && fileWrite(DOKU_LOCAL.'plugins.local.php', $output);
422
423    return $ok;
424}
425
426/**
427 * Write the given content to a file
428 *
429 * @author  Chris Smith <chris@jalakai.co.uk>
430 */
431function fileWrite($filename, $data) {
432    global $error;
433    global $lang;
434
435    if (($fp = @fopen($filename, 'wb')) === false) {
436        $filename = str_replace($_SERVER['DOCUMENT_ROOT'],'{DOCUMENT_ROOT}/', $filename);
437        $error[]  = sprintf($lang['i_writeerr'],$filename);
438        return false;
439    }
440
441    if (!empty($data)) { fwrite($fp, $data);  }
442    fclose($fp);
443    return true;
444}
445
446
447/**
448 * check installation dependent local config files and tests for a known
449 * unmodified main config file
450 *
451 * @author      Chris Smith <chris@jalakai.co.uk>
452 */
453function check_configs(){
454    global $error;
455    global $lang;
456    global $dokuwiki_hash;
457
458    $ok = true;
459
460    $config_files = array(
461        'local' => DOKU_LOCAL.'local.php',
462        'users' => DOKU_LOCAL.'users.auth.php',
463        'auth'  => DOKU_LOCAL.'acl.auth.php'
464    );
465
466    // main dokuwiki config file (conf/dokuwiki.php) must not have been modified
467    $installation_hash = md5(preg_replace("/(\015\012)|(\015)/","\012",
468                             @file_get_contents(DOKU_CONF.'dokuwiki.php')));
469    if (!in_array($installation_hash, $dokuwiki_hash)) {
470        $error[] = sprintf($lang['i_badhash'],$installation_hash);
471        $ok = false;
472    }
473
474    // configs shouldn't exist
475    foreach ($config_files as $file) {
476        if (@file_exists($file) && filesize($file)) {
477            $file    = str_replace($_SERVER['DOCUMENT_ROOT'],'{DOCUMENT_ROOT}/', $file);
478            $error[] = sprintf($lang['i_confexists'],$file);
479            $ok      = false;
480        }
481    }
482    return $ok;
483}
484
485
486/**
487 * Check other installation dir/file permission requirements
488 *
489 * @author      Chris Smith <chris@jalakai.co.uk>
490 */
491function check_permissions(){
492    global $error;
493    global $lang;
494
495    $dirs = array(
496        'conf'        => DOKU_LOCAL,
497        'data'        => DOKU_INC.'data',
498        'pages'       => DOKU_INC.'data/pages',
499        'attic'       => DOKU_INC.'data/attic',
500        'media'       => DOKU_INC.'data/media',
501        'media_attic' => DOKU_INC.'data/media_attic',
502        'media_meta'  => DOKU_INC.'data/media_meta',
503        'meta'        => DOKU_INC.'data/meta',
504        'cache'       => DOKU_INC.'data/cache',
505        'locks'       => DOKU_INC.'data/locks',
506        'index'       => DOKU_INC.'data/index',
507        'tmp'         => DOKU_INC.'data/tmp'
508    );
509
510    $ok = true;
511    foreach($dirs as $dir){
512        if(!@file_exists("$dir/.") || !@is_writable($dir)){
513            $dir     = str_replace($_SERVER['DOCUMENT_ROOT'],'{DOCUMENT_ROOT}', $dir);
514            $error[] = sprintf($lang['i_permfail'],$dir);
515            $ok      = false;
516        }
517    }
518    return $ok;
519}
520
521/**
522 * Check the availability of functions used in DokuWiki and the PHP version
523 *
524 * @author Andreas Gohr <andi@splitbrain.org>
525 */
526function check_functions(){
527    global $error;
528    global $lang;
529    $ok = true;
530
531    if(version_compare(phpversion(),'5.2.0','<')){
532        $error[] = sprintf($lang['i_phpver'],phpversion(),'5.2.0');
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 */
568function 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 '<input type="submit" value="'.$lang['btn_update'].'" />';
595    echo '</form>';
596}
597
598/**
599 * Print global error array
600 *
601 * @author Andreas Gohr <andi@splitbrain.org>
602 */
603function 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}
613
614/**
615 * remove magic quotes recursivly
616 *
617 * @author Andreas Gohr <andi@splitbrain.org>
618 */
619function remove_magic_quotes(&$array) {
620    foreach (array_keys($array) as $key) {
621        if (is_array($array[$key])) {
622            remove_magic_quotes($array[$key]);
623        }else {
624            $array[$key] = stripslashes($array[$key]);
625        }
626    }
627}
628
629