xref: /dokuwiki/install.php (revision d4e34dc04f9d538ef1b97980f0565c459c142c6f) 
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
17if(!defined('DOKU_INC')) define('DOKU_INC',dirname(__FILE__).'/');
18if(!defined('DOKU_CONF')) define('DOKU_CONF',DOKU_INC.'conf/');
19if(!defined('DOKU_LOCAL')) define('DOKU_LOCAL',DOKU_INC.'conf/');
20
21// load and initialize the core system
22require_once(DOKU_INC.'inc/init.php');
23
24// check for error reporting override or set error reporting to sane values
25if (!defined('DOKU_E_LEVEL')) { error_reporting(E_ALL ^ E_NOTICE); }
26else { error_reporting(DOKU_E_LEVEL); }
27
28// language strings
29require_once(DOKU_INC.'inc/lang/en/lang.php');
30if(isset($_REQUEST['l']) && !is_array($_REQUEST['l'])) {
31    $LC = preg_replace('/[^a-z\-]+/','',$_REQUEST['l']);
32}
33if(empty($LC)) $LC = 'en';
34if($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
42header('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/'.$LC.'/install.html');
92            }else{
93                print "<div lang=\"en\" dir=\"ltr\">\n";
94                include(DOKU_INC.'inc/lang/en/install.html');
95                print "</div>\n";
96            }
97        ?>
98        <a style="background: transparent url(data/dont-panic-if-you-see-this-in-your-logs-it-means-your-directory-permissions-are-correct.png) left top no-repeat;
99                  display: block; width:380px; height:73px; border:none; clear:both;"
100           target="_blank"
101           href="http://www.dokuwiki.org/security#web_access_security"></a>
102    </div>
103
104    <div style="float: left; width: 58%;">
105        <?php
106            if(! (check_functions() && check_permissions()) ){
107                echo '<p>'.$lang['i_problems'].'</p>';
108                print_errors();
109                print_retry();
110            }elseif(!check_configs()){
111                echo '<p>'.$lang['i_modified'].'</p>';
112                print_errors();
113            }elseif(check_data($_REQUEST['d'])){
114                // check_data has sanitized all input parameters
115                if(!store_data($_REQUEST['d'])){
116                    echo '<p>'.$lang['i_failure'].'</p>';
117                    print_errors();
118                }else{
119                    echo '<p>'.$lang['i_success'].'</p>';
120                }
121            }else{
122                print_errors();
123                print_form($_REQUEST['d']);
124            }
125        ?>
126    </div>
127
128
129<div style="clear: both">
130  <a href="http://dokuwiki.org/"><img src="lib/tpl/dokuwiki/images/button-dw.png" alt="driven by DokuWiki" /></a>
131  <a href="http://php.net"><img src="lib/tpl/dokuwiki/images/button-php.gif" alt="powered by PHP" /></a>
132</div>
133</body>
134</html>
135<?php
136
137/**
138 * Print the input form
139 *
140 * @param array $d submitted entry 'd' of request data
141 */
142function print_form($d){
143    global $lang;
144    global $LC;
145
146    include(DOKU_CONF.'license.php');
147
148    if(!is_array($d)) $d = array();
149    $d = array_map('hsc',$d);
150
151    if(!isset($d['acl'])) $d['acl']=1;
152    if(!isset($d['pop'])) $d['pop']=1;
153
154    ?>
155    <form action="" method="post">
156    <input type="hidden" name="l" value="<?php echo $LC ?>" />
157    <fieldset>
158        <label for="title"><?php echo $lang['i_wikiname']?>
159        <input type="text" name="d[title]" id="title" value="<?php echo $d['title'] ?>" style="width: 20em;" />
160        </label>
161
162        <fieldset style="margin-top: 1em;">
163            <label for="acl">
164            <input type="checkbox" name="d[acl]" id="acl" <?php echo(($d['acl'] ? ' checked="checked"' : ''));?> />
165            <?php echo $lang['i_enableacl']?></label>
166
167            <fieldset id="acldep">
168                <label for="superuser"><?php echo $lang['i_superuser']?></label>
169                <input class="text" type="text" name="d[superuser]" id="superuser" value="<?php echo $d['superuser'] ?>" />
170
171                <label for="fullname"><?php echo $lang['fullname']?></label>
172                <input class="text" type="text" name="d[fullname]" id="fullname" value="<?php echo $d['fullname'] ?>" />
173
174                <label for="email"><?php echo $lang['email']?></label>
175                <input class="text" type="text" name="d[email]" id="email" value="<?php echo $d['email'] ?>" />
176
177                <label for="password"><?php echo $lang['pass']?></label>
178                <input class="text" type="password" name="d[password]" id="password" />
179
180                <label for="confirm"><?php echo $lang['passchk']?></label>
181                <input class="text" type="password" name="d[confirm]" id="confirm" />
182
183                <label for="policy"><?php echo $lang['i_policy']?></label>
184                <select class="text" name="d[policy]" id="policy">
185                    <option value="0" <?php echo ($d['policy'] == 0)?'selected="selected"':'' ?>><?php echo $lang['i_pol0']?></option>
186                    <option value="1" <?php echo ($d['policy'] == 1)?'selected="selected"':'' ?>><?php echo $lang['i_pol1']?></option>
187                    <option value="2" <?php echo ($d['policy'] == 2)?'selected="selected"':'' ?>><?php echo $lang['i_pol2']?></option>
188                </select>
189
190                <label for="allowreg">
191                    <input type="checkbox" name="d[allowreg]" id="allowreg" <?php echo(($d['allowreg'] ? ' checked="checked"' : ''));?> />
192                    <?php echo $lang['i_allowreg']?>
193                </label>
194            </fieldset>
195        </fieldset>
196
197        <fieldset>
198            <p><?php echo $lang['i_license']?></p>
199            <?php
200            array_push($license,array('name' => $lang['i_license_none'], 'url'=>''));
201            if(empty($d['license'])) $d['license'] = 'cc-by-sa';
202            foreach($license as $key => $lic){
203                echo '<label for="lic_'.$key.'">';
204                echo '<input type="radio" name="d[license]" value="'.hsc($key).'" id="lic_'.$key.'"'.
205                     (($d['license'] === $key)?' checked="checked"':'').'>';
206                echo hsc($lic['name']);
207                if($lic['url']) echo ' <a href="'.$lic['url'].'" target="_blank"><sup>[?]</sup></a>';
208                echo '</label>';
209            }
210            ?>
211        </fieldset>
212
213        <fieldset>
214            <p><?php echo $lang['i_pop_field']?></p>
215            <label for="pop">
216                <input type="checkbox" name="d[pop]" id="pop" <?php echo(($d['pop'] ? ' checked="checked"' : ''));?> />
217                <?php echo $lang['i_pop_label']?> <a href="http://www.dokuwiki.org/popularity" target="_blank"><sup>[?]</sup></a>
218            </label>
219        </fieldset>
220
221    </fieldset>
222    <fieldset id="process">
223        <button type="submit" name="submit"><?php echo $lang['btn_save']?></button>
224    </fieldset>
225    </form>
226    <?php
227}
228
229function print_retry() {
230    global $lang;
231    global $LC;
232    ?>
233    <form action="" method="get">
234      <fieldset>
235        <input type="hidden" name="l" value="<?php echo $LC ?>" />
236        <button type="submit"><?php echo $lang['i_retry'];?></button>
237      </fieldset>
238    </form>
239    <?php
240}
241
242/**
243 * Check validity of data
244 *
245 * @author Andreas Gohr
246 *
247 * @param array $d
248 * @return bool ok?
249 */
250function check_data(&$d){
251    static $form_default = array(
252        'title'     => '',
253        'acl'       => '1',
254        'superuser' => '',
255        'fullname'  => '',
256        'email'     => '',
257        'password'  => '',
258        'confirm'   => '',
259        'policy'    => '0',
260        'allowreg'  => '0',
261        'license'   => 'cc-by-sa'
262    );
263    global $lang;
264    global $error;
265
266    if(!is_array($d)) $d = array();
267    foreach($d as $k => $v) {
268        if(is_array($v))
269            unset($d[$k]);
270        else
271            $d[$k] = (string)$v;
272    }
273
274    //autolowercase the username
275    $d['superuser'] = isset($d['superuser']) ? strtolower($d['superuser']) : "";
276
277    $ok = false;
278
279    if(isset($_REQUEST['submit'])) {
280        $ok = true;
281
282        // check input
283        if(empty($d['title'])){
284            $error[] = sprintf($lang['i_badval'],$lang['i_wikiname']);
285            $ok      = false;
286        }
287        if(isset($d['acl'])){
288            if(!preg_match('/^[a-z0-9_]+$/',$d['superuser'])){
289                $error[] = sprintf($lang['i_badval'],$lang['i_superuser']);
290                $ok      = false;
291            }
292            if(empty($d['password'])){
293                $error[] = sprintf($lang['i_badval'],$lang['pass']);
294                $ok      = false;
295            }
296            elseif(!isset($d['confirm']) || $d['confirm'] != $d['password']){
297                $error[] = sprintf($lang['i_badval'],$lang['passchk']);
298                $ok      = false;
299            }
300            if(empty($d['fullname']) || strstr($d['fullname'],':')){
301                $error[] = sprintf($lang['i_badval'],$lang['fullname']);
302                $ok      = false;
303            }
304            if(empty($d['email']) || strstr($d['email'],':') || !strstr($d['email'],'@')){
305                $error[] = sprintf($lang['i_badval'],$lang['email']);
306                $ok      = false;
307            }
308        }
309    }
310    $d = array_merge($form_default, $d);
311    return $ok;
312}
313
314/**
315 * Writes the data to the config files
316 *
317 * @author  Chris Smith <chris@jalakai.co.uk>
318 *
319 * @param array $d
320 * @return bool
321 */
322function store_data($d){
323    global $LC;
324    $ok = true;
325    $d['policy'] = (int) $d['policy'];
326
327    // create local.php
328    $now    = gmdate('r');
329    $output = <<<EOT
330<?php
331/**
332 * Dokuwiki's Main Configuration File - Local Settings
333 * Auto-generated by install script
334 * Date: $now
335 */
336
337EOT;
338    // add any config options set by a previous installer
339    $preset = __DIR__.'/install.conf';
340    if(file_exists($preset)){
341        $output .= "# preset config options\n";
342        $output .= file_get_contents($preset);
343        $output .= "\n\n";
344        $output .= "# options selected in installer\n";
345        @unlink($preset);
346    }
347
348    $output .= '$conf[\'title\'] = \''.addslashes($d['title'])."';\n";
349    $output .= '$conf[\'lang\'] = \''.addslashes($LC)."';\n";
350    $output .= '$conf[\'license\'] = \''.addslashes($d['license'])."';\n";
351    if($d['acl']){
352        $output .= '$conf[\'useacl\'] = 1'.";\n";
353        $output .= "\$conf['superuser'] = '@admin';\n";
354    }
355    if(!$d['allowreg']){
356        $output .= '$conf[\'disableactions\'] = \'register\''.";\n";
357    }
358    $ok = $ok && fileWrite(DOKU_LOCAL.'local.php',$output);
359
360    if ($d['acl']) {
361        // hash the password
362        $phash = new PassHash();
363        $pass = $phash->hash_smd5($d['password']);
364
365        // create users.auth.php
366        // --- user:SMD5password:Real Name:email:groups,comma,seperated
367        $output = join(":",array($d['superuser'], $pass, $d['fullname'], $d['email'], 'admin,user'));
368        $output = @file_get_contents(DOKU_CONF.'users.auth.php.dist')."\n$output\n";
369        $ok = $ok && fileWrite(DOKU_LOCAL.'users.auth.php', $output);
370
371        // create acl.auth.php
372        $output = <<<EOT
373# acl.auth.php
374# <?php exit()?>
375# Don't modify the lines above
376#
377# Access Control Lists
378#
379# Auto-generated by install script
380# Date: $now
381
382EOT;
383        if($d['policy'] == 2){
384            $output .=  "*               @ALL          0\n";
385            $output .=  "*               @user         8\n";
386        }elseif($d['policy'] == 1){
387            $output .=  "*               @ALL          1\n";
388            $output .=  "*               @user         8\n";
389        }else{
390            $output .=  "*               @ALL          8\n";
391        }
392        $ok = $ok && fileWrite(DOKU_LOCAL.'acl.auth.php', $output);
393    }
394
395    // enable popularity submission
396    if($d['pop']){
397        @touch(DOKU_INC.'data/cache/autosubmit.txt');
398    }
399
400    // disable auth plugins til needed
401    $output = <<<EOT
402<?php
403/*
404 * Local plugin enable/disable settings
405 *
406 * Auto-generated by install script
407 * Date: $now
408 */
409
410\$plugins['authad']    = 0;
411\$plugins['authldap']  = 0;
412\$plugins['authmysql'] = 0;
413\$plugins['authpgsql'] = 0;
414
415EOT;
416    $ok = $ok && fileWrite(DOKU_LOCAL.'plugins.local.php', $output);
417
418    return $ok;
419}
420
421/**
422 * Write the given content to a file
423 *
424 * @author  Chris Smith <chris@jalakai.co.uk>
425 *
426 * @param string $filename
427 * @param string $data
428 * @return bool
429 */
430function fileWrite($filename, $data) {
431    global $error;
432    global $lang;
433
434    if (($fp = @fopen($filename, 'wb')) === false) {
435        $filename = str_replace($_SERVER['DOCUMENT_ROOT'],'{DOCUMENT_ROOT}/', $filename);
436        $error[]  = sprintf($lang['i_writeerr'],$filename);
437        return false;
438    }
439
440    if (!empty($data)) { fwrite($fp, $data);  }
441    fclose($fp);
442    return true;
443}
444
445
446/**
447 * check installation dependent local config files and tests for a known
448 * unmodified main config file
449 *
450 * @author      Chris Smith <chris@jalakai.co.uk>
451 *
452 * @return bool
453 */
454function check_configs(){
455    global $error;
456    global $lang;
457
458    $ok = true;
459
460    $config_files = array(
461        'local' => DOKU_LOCAL.'local.php',
462        'users' => DOKU_LOCAL.'users.auth.php',
463        'auth'  => DOKU_LOCAL.'acl.auth.php'
464    );
465
466    // configs shouldn't exist
467    foreach ($config_files as $file) {
468        if (file_exists($file) && filesize($file)) {
469            $file    = str_replace($_SERVER['DOCUMENT_ROOT'],'{DOCUMENT_ROOT}/', $file);
470            $error[] = sprintf($lang['i_confexists'],$file);
471            $ok      = false;
472        }
473    }
474    return $ok;
475}
476
477
478/**
479 * Check other installation dir/file permission requirements
480 *
481 * @author      Chris Smith <chris@jalakai.co.uk>
482 *
483 * @return bool
484 */
485function check_permissions(){
486    global $error;
487    global $lang;
488
489    $dirs = array(
490        'conf'        => DOKU_LOCAL,
491        'data'        => DOKU_INC.'data',
492        'pages'       => DOKU_INC.'data/pages',
493        'attic'       => DOKU_INC.'data/attic',
494        'media'       => DOKU_INC.'data/media',
495        'media_attic' => DOKU_INC.'data/media_attic',
496        'media_meta'  => DOKU_INC.'data/media_meta',
497        'meta'        => DOKU_INC.'data/meta',
498        'cache'       => DOKU_INC.'data/cache',
499        'locks'       => DOKU_INC.'data/locks',
500        'index'       => DOKU_INC.'data/index',
501        'tmp'         => DOKU_INC.'data/tmp'
502    );
503
504    $ok = true;
505    foreach($dirs as $dir){
506        if(!file_exists("$dir/.") || !is_writable($dir)){
507            $dir     = str_replace($_SERVER['DOCUMENT_ROOT'],'{DOCUMENT_ROOT}', $dir);
508            $error[] = sprintf($lang['i_permfail'],$dir);
509            $ok      = false;
510        }
511    }
512    return $ok;
513}
514
515/**
516 * Check the availability of functions used in DokuWiki and the PHP version
517 *
518 * @author Andreas Gohr <andi@splitbrain.org>
519 *
520 * @return bool
521 */
522function check_functions(){
523    global $error;
524    global $lang;
525    $ok = true;
526
527    if(version_compare(phpversion(),'5.6.0','<')){
528        $error[] = sprintf($lang['i_phpver'],phpversion(),'5.6.0');
529        $ok = false;
530    }
531
532    if(ini_get('mbstring.func_overload') != 0){
533        $error[] = $lang['i_mbfuncoverload'];
534        $ok = false;
535    }
536
537    $funcs = explode(' ','addslashes call_user_func chmod copy fgets '.
538                         'file file_exists fseek flush filesize ftell fopen '.
539                         'glob header ignore_user_abort ini_get mail mkdir '.
540                         'ob_start opendir parse_ini_file readfile realpath '.
541                         'rename rmdir serialize session_start unlink usleep '.
542                         'preg_replace file_get_contents htmlspecialchars_decode '.
543                         'spl_autoload_register stream_select fsockopen pack');
544
545    if (!function_exists('mb_substr')) {
546        $funcs[] = 'utf8_encode';
547        $funcs[] = 'utf8_decode';
548    }
549
550    foreach($funcs as $func){
551        if(!function_exists($func)){
552            $error[] = sprintf($lang['i_funcna'],$func);
553            $ok = false;
554        }
555    }
556    return $ok;
557}
558
559/**
560 * Print language selection
561 *
562 * @author Andreas Gohr <andi@splitbrain.org>
563 */
564function langsel(){
565    global $lang;
566    global $LC;
567
568    $dir = DOKU_INC.'inc/lang';
569    $dh  = opendir($dir);
570    if(!$dh) return;
571
572    $langs = array();
573    while (($file = readdir($dh)) !== false) {
574        if(preg_match('/^[\._]/',$file)) continue;
575        if(is_dir($dir.'/'.$file) && file_exists($dir.'/'.$file.'/lang.php')){
576            $langs[] = $file;
577        }
578    }
579    closedir($dh);
580    sort($langs);
581
582    echo '<form action="">';
583    echo $lang['i_chooselang'];
584    echo ': <select name="l" onchange="submit()">';
585    foreach($langs as $l){
586        $sel = ($l == $LC) ? 'selected="selected"' : '';
587        echo '<option value="'.$l.'" '.$sel.'>'.$l.'</option>';
588    }
589    echo '</select> ';
590    echo '<button type="submit">'.$lang['btn_update'].'</button>';
591    echo '</form>';
592}
593
594/**
595 * Print global error array
596 *
597 * @author Andreas Gohr <andi@splitbrain.org>
598 */
599function print_errors(){
600    global $error;
601    if(!empty($error)) {
602        echo '<ul>';
603        foreach ($error as $err){
604            echo "<li>$err</li>";
605        }
606        echo '</ul>';
607    }
608}
609