xref: /dokuwiki/install.php (revision 66f6026a07113ad66bd10f320b325222708aaaf2) 
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
12// check for error reporting override or set error reporting to sane values
13if (!defined('DOKU_E_LEVEL')) { error_reporting(E_ALL ^ E_NOTICE); }
14else { error_reporting(DOKU_E_LEVEL); }
15
16// kill magic quotes
17if (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
29require_once(DOKU_INC.'inc/lang/en/lang.php');
30$LC = preg_replace('/[^a-z\-]+/','',$_REQUEST['l']);
31if(!$LC) $LC = 'en';
32if($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    '2010-11-07'   => '7921d48195f4db21b8ead6d9bea801b8',
50    'rc2011-04-22' => '4241865472edb6fa14a1227721008072',
51);
52
53
54
55// begin output
56header('Content-Type: text/html; charset=utf-8');
57?>
58<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
59 "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
60<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="<?php echo $LC?>"
61 lang="<?php echo $LC?>" dir="<?php echo $lang['direction']?>">
62<head>
63    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
64    <title><?php echo $lang['i_installer']?></title>
65    <style type="text/css">
66        body { width: 90%; margin: 0 auto; font: 84% Verdana, Helvetica, Arial, sans-serif; }
67        img { border: none }
68        br.cl { clear:both; }
69        code { font-size: 110%; color: #800000; }
70        fieldset { border: none }
71        label { display: block; margin-top: 0.5em; }
72        select.text, input.text { width: 30em; margin: 0 0.5em; }
73        a {text-decoration: none}
74    </style>
75    <script type="text/javascript" language="javascript">
76        function acltoggle(){
77            var cb = document.getElementById('acl');
78            var fs = document.getElementById('acldep');
79            if(!cb || !fs) return;
80            if(cb.checked){
81                fs.style.display = '';
82            }else{
83                fs.style.display = 'none';
84            }
85        }
86        window.onload = function(){
87            acltoggle();
88            var cb = document.getElementById('acl');
89            if(cb) cb.onchange = acltoggle;
90        };
91    </script>
92</head>
93<body style="">
94    <h1 style="float:left">
95        <img src="lib/exe/fetch.php?media=wiki:dokuwiki-128.png&w=64"
96             style="vertical-align: middle;" alt="" />
97        <?php echo $lang['i_installer']?>
98    </h1>
99    <div style="float:right; margin: 1em;">
100        <?php langsel()?>
101    </div>
102    <br class="cl" />
103
104    <div style="float: right; width: 34%;">
105        <?php
106            if(@file_exists(DOKU_INC.'inc/lang/'.$LC.'/install.html')){
107                include(DOKU_INC.'inc/lang/'.$LC.'/install.html');
108            }else{
109                print "<div lang=\"en\" dir=\"ltr\">\n";
110                include(DOKU_INC.'inc/lang/en/install.html');
111                print "</div>\n";
112            }
113        ?>
114        <a style="background: transparent url(data/security.png) left top no-repeat;
115                  display: block; width:380px; height:73px; border:none; clear:both;"
116           target="_blank"
117           href="http://www.dokuwiki.org/security#web_access_security"></a>
118    </div>
119
120    <div style="float: left; width: 58%;">
121        <?php
122            if(! (check_functions() && check_permissions()) ){
123                echo '<p>'.$lang['i_problems'].'</p>';
124                print_errors();
125                print_retry();
126            }elseif(!check_configs()){
127                echo '<p>'.$lang['i_modified'].'</p>';
128                print_errors();
129            }elseif($_REQUEST['submit']){
130                if(!check_data($_REQUEST['d'])){
131                    print_errors();
132                    print_form($_REQUEST['d']);
133                }elseif(!store_data($_REQUEST['d'])){
134                    echo '<p>'.$lang['i_failure'].'</p>';
135                    print_errors();
136                }else{
137                    echo '<p>'.$lang['i_success'].'</p>';
138                }
139            }else{
140                print_form($_REQUEST['d']);
141            }
142        ?>
143    </div>
144
145
146<div style="clear: both">
147  <a href="http://dokuwiki.org/"><img src="lib/tpl/default/images/button-dw.png" alt="driven by DokuWiki" /></a>
148  <a href="http://www.php.net"><img src="lib/tpl/default/images/button-php.gif" alt="powered by PHP" /></a>
149</div>
150</body>
151</html>
152<?php
153
154/**
155 * Print the input form
156 */
157function print_form($d){
158    global $lang;
159    global $LC;
160
161    include(DOKU_CONF.'license.php');
162
163    if(!is_array($d)) $d = array();
164    $d = array_map('htmlspecialchars',$d);
165
166    if(!isset($d['acl'])) $d['acl']=1;
167
168    ?>
169    <form action="" method="post">
170    <input type="hidden" name="l" value="<?php echo $LC ?>" />
171    <fieldset>
172        <label for="title"><?php echo $lang['i_wikiname']?>
173        <input type="text" name="d[title]" id="title" value="<?php echo $d['title'] ?>" style="width: 20em;" />
174        </label>
175
176        <fieldset style="margin-top: 1em;">
177            <label for="acl">
178            <input type="checkbox" name="d[acl]" id="acl" <?php echo(($d['acl'] ? 'checked="checked"' : ''));?> />
179            <?php echo $lang['i_enableacl']?></label>
180
181            <fieldset id="acldep">
182                <label for="superuser"><?php echo $lang['i_superuser']?></label>
183                <input class="text" type="text" name="d[superuser]" id="superuser" value="<?php echo $d['superuser'] ?>" />
184
185                <label for="fullname"><?php echo $lang['fullname']?></label>
186                <input class="text" type="text" name="d[fullname]" id="fullname" value="<?php echo $d['fullname'] ?>" />
187
188                <label for="email"><?php echo $lang['email']?></label>
189                <input class="text" type="text" name="d[email]" id="email" value="<?php echo $d['email'] ?>" />
190
191                <label for="password"><?php echo $lang['pass']?></label>
192                <input class="text" type="password" name="d[password]" id="password" />
193
194                <label for="confirm"><?php echo $lang['passchk']?></label>
195                <input class="text" type="password" name="d[confirm]" id="confirm" />
196
197                <label for="policy"><?php echo $lang['i_policy']?></label>
198                <select class="text" name="d[policy]" id="policy">
199                    <option value="0" <?php echo ($d['policy'] == 0)?'selected="selected"':'' ?>><?php echo $lang['i_pol0']?></option>
200                    <option value="1" <?php echo ($d['policy'] == 1)?'selected="selected"':'' ?>><?php echo $lang['i_pol1']?></option>
201                    <option value="2" <?php echo ($d['policy'] == 2)?'selected="selected"':'' ?>><?php echo $lang['i_pol2']?></option>
202                </select>
203
204            </fieldset>
205        </fieldset>
206
207        <fieldset>
208            <p><?php echo $lang['i_license']?></p>
209            <?php
210            array_unshift($license,array('name' => 'None', 'url'=>''));
211            if(!isset($d['license'])) $d['license'] = 'cc-by-sa';
212            foreach($license as $key => $lic){
213                echo '<label for="lic_'.$key.'">';
214                echo '<input type="radio" name="d[license]" value="'.htmlspecialchars($key).'" id="lic_'.$key.'"'.
215                     (($d['license'] == $key)?'checked="checked"':'').'>';
216                echo htmlspecialchars($lic['name']);
217                if($lic['url']) echo ' <a href="'.$lic['url'].'" target="_blank"><sup>[?]</sup></a>';
218                echo '</label>';
219            }
220            ?>
221        </fieldset>
222
223    </fieldset>
224    <fieldset id="process">
225        <input class="button" type="submit" name="submit" value="<?php echo $lang['btn_save']?>" />
226    </fieldset>
227    </form>
228    <?php
229}
230
231function print_retry() {
232    global $lang;
233    global $LC;
234    ?>
235    <form action="" method="get">
236      <fieldset>
237        <input type="hidden" name="l" value="<?php echo $LC ?>" />
238        <input class="button" type="submit" value="<?php echo $lang['i_retry'];?>" />
239      </fieldset>
240    </form>
241    <?php
242}
243
244/**
245 * Check validity of data
246 *
247 * @author Andreas Gohr
248 */
249function check_data(&$d){
250    global $lang;
251    global $error;
252
253    //autolowercase the username
254    $d['superuser'] = strtolower($d['superuser']);
255
256    $ok = true;
257
258    // check input
259    if(empty($d['title'])){
260        $error[] = sprintf($lang['i_badval'],$lang['i_wikiname']);
261        $ok      = false;
262    }
263    if($d['acl']){
264        if(!preg_match('/^[a-z0-9_]+$/',$d['superuser'])){
265            $error[] = sprintf($lang['i_badval'],$lang['i_superuser']);
266            $ok      = false;
267        }
268        if(empty($d['password'])){
269            $error[] = sprintf($lang['i_badval'],$lang['pass']);
270            $ok      = false;
271        }
272        if($d['confirm'] != $d['password']){
273            $error[] = sprintf($lang['i_badval'],$lang['passchk']);
274            $ok      = false;
275        }
276        if(empty($d['fullname']) || strstr($d['fullname'],':')){
277            $error[] = sprintf($lang['i_badval'],$lang['fullname']);
278            $ok      = false;
279        }
280        if(empty($d['email']) || strstr($d['email'],':') || !strstr($d['email'],'@')){
281            $error[] = sprintf($lang['i_badval'],$lang['email']);
282            $ok      = false;
283        }
284    }
285    return $ok;
286}
287
288/**
289 * Writes the data to the config files
290 *
291 * @author  Chris Smith <chris@jalakai.co.uk>
292 */
293function store_data($d){
294    global $LC;
295    $ok = true;
296    $d['policy'] = (int) $d['policy'];
297
298    // create local.php
299    $now    = gmdate('r');
300    $output = <<<EOT
301<?php
302/**
303 * Dokuwiki's Main Configuration File - Local Settings
304 * Auto-generated by install script
305 * Date: $now
306 */
307
308EOT;
309    $output .= '$conf[\'title\'] = \''.addslashes($d['title'])."';\n";
310    $output .= '$conf[\'lang\'] = \''.addslashes($LC)."';\n";
311    $output .= '$conf[\'license\'] = \''.addslashes($d['license'])."';\n";
312    if($d['acl']){
313        $output .= '$conf[\'useacl\'] = 1'.";\n";
314        $output .= "\$conf['superuser'] = '@admin';\n";
315    }
316    $ok = $ok && fileWrite(DOKU_LOCAL.'local.php',$output);
317
318    if ($d['acl']) {
319        // create users.auth.php
320        // --- user:MD5password:Real Name:email:groups,comma,seperated
321        $output = join(":",array($d['superuser'], md5($d['password']), $d['fullname'], $d['email'], 'admin,user'));
322        $output = @file_get_contents(DOKU_CONF.'users.auth.php.dist')."\n$output\n";
323        $ok = $ok && fileWrite(DOKU_LOCAL.'users.auth.php', $output);
324
325        // create acl.auth.php
326        $output = <<<EOT
327# acl.auth.php
328# <?php exit()?>
329# Don't modify the lines above
330#
331# Access Control Lists
332#
333# Auto-generated by install script
334# Date: $now
335
336EOT;
337        if($d['policy'] == 2){
338            $output .=  "*               @ALL          0\n";
339            $output .=  "*               @user         8\n";
340        }elseif($d['policy'] == 1){
341            $output .=  "*               @ALL          1\n";
342            $output .=  "*               @user         8\n";
343        }else{
344            $output .=  "*               @ALL          8\n";
345        }
346        $ok = $ok && fileWrite(DOKU_LOCAL.'acl.auth.php', $output);
347    }
348    return $ok;
349}
350
351/**
352 * Write the given content to a file
353 *
354 * @author  Chris Smith <chris@jalakai.co.uk>
355 */
356function fileWrite($filename, $data) {
357    global $error;
358    global $lang;
359
360    if (($fp = @fopen($filename, 'wb')) === false) {
361        $filename = str_replace($_SERVER['DOCUMENT_ROOT'],'{DOCUMENT_ROOT}/', $filename);
362        $error[]  = sprintf($lang['i_writeerr'],$filename);
363        return false;
364    }
365
366    if (!empty($data)) { fwrite($fp, $data);  }
367    fclose($fp);
368    return true;
369}
370
371
372/**
373 * check installation dependent local config files and tests for a known
374 * unmodified main config file
375 *
376 * @author      Chris Smith <chris@jalakai.co.uk>
377 */
378function check_configs(){
379    global $error;
380    global $lang;
381    global $dokuwiki_hash;
382
383    $ok = true;
384
385    $config_files = array(
386        'local' => DOKU_LOCAL.'local.php',
387        'users' => DOKU_LOCAL.'users.auth.php',
388        'auth'  => DOKU_LOCAL.'acl.auth.php'
389    );
390
391    // main dokuwiki config file (conf/dokuwiki.php) must not have been modified
392    $installation_hash = md5(preg_replace("/(\015\012)|(\015)/","\012",
393                             @file_get_contents(DOKU_CONF.'dokuwiki.php')));
394    if (!in_array($installation_hash, $dokuwiki_hash)) {
395        $error[] = sprintf($lang['i_badhash'],$installation_hash);
396        $ok = false;
397    }
398
399    // configs shouldn't exist
400    foreach ($config_files as $file) {
401        if (@file_exists($file)) {
402            $file    = str_replace($_SERVER['DOCUMENT_ROOT'],'{DOCUMENT_ROOT}/', $file);
403            $error[] = sprintf($lang['i_confexists'],$file);
404            $ok      = false;
405        }
406    }
407    return $ok;
408}
409
410
411/**
412 * Check other installation dir/file permission requirements
413 *
414 * @author      Chris Smith <chris@jalakai.co.uk>
415 */
416function check_permissions(){
417    global $error;
418    global $lang;
419
420    $dirs = array(
421        'conf'      => DOKU_LOCAL,
422        'data'      => DOKU_INC.'data',
423        'pages'     => DOKU_INC.'data/pages',
424        'attic'     => DOKU_INC.'data/attic',
425        'media'     => DOKU_INC.'data/media',
426        'meta'      => DOKU_INC.'data/meta',
427        'cache'     => DOKU_INC.'data/cache',
428        'locks'     => DOKU_INC.'data/locks',
429        'index'     => DOKU_INC.'data/index',
430        'tmp'       => DOKU_INC.'data/tmp'
431    );
432
433    $ok = true;
434    foreach($dirs as $dir){
435        if(!@file_exists("$dir/.") || !@is_writable($dir)){
436            $dir     = str_replace($_SERVER['DOCUMENT_ROOT'],'{DOCUMENT_ROOT}', $dir);
437            $error[] = sprintf($lang['i_permfail'],$dir);
438            $ok      = false;
439        }
440    }
441    return $ok;
442}
443
444/**
445 * Check the availability of functions used in DokuWiki and the PHP version
446 *
447 * @author Andreas Gohr <andi@splitbrain.org>
448 */
449function check_functions(){
450    global $error;
451    global $lang;
452    $ok = true;
453
454    if(version_compare(phpversion(),'5.1.2','<')){
455        $error[] = sprintf($lang['i_phpver'],phpversion(),'5.1.2');
456        $ok = false;
457    }
458
459    $funcs = explode(' ','addslashes basename call_user_func chmod copy fgets '.
460                         'file file_exists fseek flush filesize ftell fopen '.
461                         'glob header ignore_user_abort ini_get mail mkdir '.
462                         'ob_start opendir parse_ini_file readfile realpath '.
463                         'rename rmdir serialize session_start unlink usleep '.
464                         'preg_replace file_get_contents htmlspecialchars_decode '.
465                         'spl_autoload_register');
466
467    if (!function_exists('mb_substr')) {
468        $funcs[] = 'utf8_encode';
469        $funcs[] = 'utf8_decode';
470    }
471
472    foreach($funcs as $func){
473        if(!function_exists($func)){
474            $error[] = sprintf($lang['i_funcna'],$func);
475            $ok = false;
476        }
477    }
478    return $ok;
479}
480
481/**
482 * Print language selection
483 *
484 * @author Andreas Gohr <andi@splitbrain.org>
485 */
486function langsel(){
487    global $lang;
488    global $LC;
489
490    $dir = DOKU_INC.'inc/lang';
491    $dh  = opendir($dir);
492    if(!$dh) return;
493
494    $langs = array();
495    while (($file = readdir($dh)) !== false) {
496        if(preg_match('/^[\._]/',$file)) continue;
497        if(is_dir($dir.'/'.$file) && @file_exists($dir.'/'.$file.'/lang.php')){
498            $langs[] = $file;
499        }
500    }
501    closedir($dh);
502    sort($langs);
503
504    echo '<form action="">';
505    echo $lang['i_chooselang'];
506    echo ': <select name="l" onchange="submit()">';
507    foreach($langs as $l){
508        $sel = ($l == $LC) ? 'selected="selected"' : '';
509        echo '<option value="'.$l.'" '.$sel.'>'.$l.'</option>';
510    }
511    echo '</select> ';
512    echo '<input type="submit" value="'.$lang['btn_update'].'" />';
513    echo '</form>';
514}
515
516/**
517 * Print global error array
518 *
519 * @author Andreas Gohr <andi@splitbrain.org>
520 */
521function print_errors(){
522    global $error;
523    echo '<ul>';
524    foreach ($error as $err){
525        echo "<li>$err</li>";
526    }
527    echo '</ul>';
528}
529
530/**
531 * remove magic quotes recursivly
532 *
533 * @author Andreas Gohr <andi@splitbrain.org>
534 */
535function remove_magic_quotes(&$array) {
536    foreach (array_keys($array) as $key) {
537        if (is_array($array[$key])) {
538            remove_magic_quotes($array[$key]);
539        }else {
540            $array[$key] = stripslashes($array[$key]);
541        }
542    }
543}
544
545