xref: /dokuwiki/install.php (revision c4b04b7f874a6c3f7ab5296aed1c039757183eb7) 
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);
50
51
52
53// begin output
54header('Content-Type: text/html; charset=utf-8');
55?>
56<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
57 "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
58<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="<?php echo $LC?>"
59 lang="<?php echo $LC?>" dir="<?php echo $lang['direction']?>">
60<head>
61    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
62    <title><?php echo $lang['i_installer']?></title>
63    <style type="text/css">
64        body { width: 90%; margin: 0 auto; font: 84% Verdana, Helvetica, Arial, sans-serif; }
65        img { border: none }
66        br.cl { clear:both; }
67        code { font-size: 110%; color: #800000; }
68        fieldset { border: none }
69        label { display: block; margin-top: 0.5em; }
70        select.text, input.text { width: 30em; margin: 0 0.5em; }
71    </style>
72    <script type="text/javascript" language="javascript">
73        function acltoggle(){
74            var cb = document.getElementById('acl');
75            var fs = document.getElementById('acldep');
76            if(!cb || !fs) return;
77            if(cb.checked){
78                fs.style.display = '';
79            }else{
80                fs.style.display = 'none';
81            }
82        }
83        window.onload = function(){
84            acltoggle();
85            var cb = document.getElementById('acl');
86            if(cb) cb.onchange = acltoggle;
87        };
88    </script>
89</head>
90<body style="">
91    <h1 style="float:left">
92        <img src="lib/exe/fetch.php?media=wiki:dokuwiki-128.png&w=64"
93             style="vertical-align: middle;" alt="" />
94        <?php echo $lang['i_installer']?>
95    </h1>
96    <div style="float:right; margin: 1em;">
97        <?php langsel()?>
98    </div>
99    <br class="cl" />
100
101    <div style="float: right; width: 34%;">
102        <?php
103            if(@file_exists(DOKU_INC.'inc/lang/'.$LC.'/install.html')){
104                include(DOKU_INC.'inc/lang/'.$LC.'/install.html');
105            }else{
106                print "<div lang=\"en\" dir=\"ltr\">\n";
107                include(DOKU_INC.'inc/lang/en/install.html');
108                print "</div>\n";
109            }
110        ?>
111    </div>
112
113    <div style="float: left; width: 58%;">
114        <?php
115            if(! (check_functions() && check_permissions()) ){
116                echo '<p>'.$lang['i_problems'].'</p>';
117                print_errors();
118                print_retry();
119            }elseif(!check_configs()){
120                echo '<p>'.$lang['i_modified'].'</p>';
121                print_errors();
122            }elseif($_REQUEST['submit']){
123                if(!check_data($_REQUEST['d'])){
124                    print_errors();
125                    print_form($_REQUEST['d']);
126                }elseif(!store_data($_REQUEST['d'])){
127                    echo '<p>'.$lang['i_failure'].'</p>';
128                    print_errors();
129                }else{
130                    echo '<p>'.$lang['i_success'].'</p>';
131                }
132            }else{
133                print_form($_REQUEST['d']);
134            }
135        ?>
136    </div>
137
138<div style="clear: both">
139  <a href="http://dokuwiki.org/"><img src="lib/tpl/default/images/button-dw.png" alt="driven by DokuWiki" /></a>
140  <a href="http://www.php.net"><img src="lib/tpl/default/images/button-php.gif" alt="powered by PHP" /></a>
141</div>
142</body>
143</html>
144<?php
145
146/**
147 * Print the input form
148 */
149function print_form($d){
150    global $lang;
151    global $LC;
152
153    if(!is_array($d)) $d = array();
154    $d = array_map('htmlspecialchars',$d);
155
156    if(!isset($d['acl'])) $d['acl']=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            </fieldset>
194        </fieldset>
195
196    </fieldset>
197    <fieldset id="process">
198        <input class="button" type="submit" name="submit" value="<?php echo $lang['btn_save']?>" />
199    </fieldset>
200    </form>
201    <?php
202}
203
204function print_retry() {
205    global $lang;
206    global $LC;
207    ?>
208    <form action="" method="get">
209      <fieldset>
210        <input type="hidden" name="l" value="<?php echo $LC ?>" />
211        <input class="button" type="submit" value="<?php echo $lang['i_retry'];?>" />
212      </fieldset>
213    </form>
214    <?php
215}
216
217/**
218 * Check validity of data
219 *
220 * @author Andreas Gohr
221 */
222function check_data(&$d){
223    global $lang;
224    global $error;
225
226    //autolowercase the username
227    $d['superuser'] = strtolower($d['superuser']);
228
229    $ok = true;
230
231    // check input
232    if(empty($d['title'])){
233        $error[] = sprintf($lang['i_badval'],$lang['i_wikiname']);
234        $ok      = false;
235    }
236    if($d['acl']){
237        if(!preg_match('/^[a-z1-9_]+$/',$d['superuser'])){
238            $error[] = sprintf($lang['i_badval'],$lang['i_superuser']);
239            $ok      = false;
240        }
241        if(empty($d['password'])){
242            $error[] = sprintf($lang['i_badval'],$lang['pass']);
243            $ok      = false;
244        }
245        if($d['confirm'] != $d['password']){
246            $error[] = sprintf($lang['i_badval'],$lang['passchk']);
247            $ok      = false;
248        }
249        if(empty($d['fullname']) || strstr($d['fullname'],':')){
250            $error[] = sprintf($lang['i_badval'],$lang['fullname']);
251            $ok      = false;
252        }
253        if(empty($d['email']) || strstr($d['email'],':') || !strstr($d['email'],'@')){
254            $error[] = sprintf($lang['i_badval'],$lang['email']);
255            $ok      = false;
256        }
257    }
258    return $ok;
259}
260
261/**
262 * Writes the data to the config files
263 *
264 * @author  Chris Smith <chris@jalakai.co.uk>
265 */
266function store_data($d){
267    global $LC;
268    $ok = true;
269    $d['policy'] = (int) $d['policy'];
270
271    // create local.php
272    $now    = date('r');
273    $output = <<<EOT
274<?php
275/**
276 * Dokuwiki's Main Configuration File - Local Settings
277 * Auto-generated by install script
278 * Date: $now
279 */
280
281EOT;
282    $output .= '$conf[\'title\'] = \''.addslashes($d['title'])."';\n";
283    $output .= '$conf[\'lang\'] = \''.addslashes($LC)."';\n";
284    if($d['acl']){
285        $output .= '$conf[\'useacl\'] = 1'.";\n";
286        $output .= "\$conf['superuser'] = '@admin';\n";
287    }
288    $ok = $ok && fileWrite(DOKU_LOCAL.'local.php',$output);
289
290    if ($d['acl']) {
291        // create users.auth.php
292        // --- user:MD5password:Real Name:email:groups,comma,seperated
293        $output = join(":",array($d['superuser'], md5($d['password']), $d['fullname'], $d['email'], 'admin,user'));
294        $output = @file_get_contents(DOKU_CONF.'users.auth.php.dist')."\n$output\n";
295        $ok = $ok && fileWrite(DOKU_LOCAL.'users.auth.php', $output);
296
297        // create acl.auth.php
298        $output = <<<EOT
299# acl.auth.php
300# <?php exit()?>
301# Don't modify the lines above
302#
303# Access Control Lists
304#
305# Auto-generated by install script
306# Date: $now
307
308EOT;
309        if($d['policy'] == 2){
310            $output .=  "*               @ALL          0\n";
311            $output .=  "*               @user         8\n";
312        }elseif($d['policy'] == 1){
313            $output .=  "*               @ALL          1\n";
314            $output .=  "*               @user         8\n";
315        }else{
316            $output .=  "*               @ALL          8\n";
317        }
318        $ok = $ok && fileWrite(DOKU_LOCAL.'acl.auth.php', $output);
319    }
320    return $ok;
321}
322
323/**
324 * Write the given content to a file
325 *
326 * @author  Chris Smith <chris@jalakai.co.uk>
327 */
328function fileWrite($filename, $data) {
329    global $error;
330    global $lang;
331
332    if (($fp = @fopen($filename, 'wb')) === false) {
333        $filename = str_replace($_SERVER['DOCUMENT_ROOT'],'{DOCUMENT_ROOT}/', $filename);
334        $error[]  = sprintf($lang['i_writeerr'],$filename);
335        return false;
336    }
337
338    if (!empty($data)) { fwrite($fp, $data);  }
339    fclose($fp);
340    return true;
341}
342
343
344/**
345 * check installation dependent local config files and tests for a known
346 * unmodified main config file
347 *
348 * @author      Chris Smith <chris@jalakai.co.uk>
349 */
350function check_configs(){
351    global $error;
352    global $lang;
353    global $dokuwiki_hash;
354
355    $ok = true;
356
357    $config_files = array(
358        'local' => DOKU_LOCAL.'local.php',
359        'users' => DOKU_LOCAL.'users.auth.php',
360        'auth'  => DOKU_LOCAL.'acl.auth.php'
361    );
362
363    // main dokuwiki config file (conf/dokuwiki.php) must not have been modified
364    $installation_hash = md5(preg_replace("/(\015\012)|(\015)/","\012",
365                             @file_get_contents(DOKU_CONF.'dokuwiki.php')));
366    if (!in_array($installation_hash, $dokuwiki_hash)) {
367        $error[] = sprintf($lang['i_badhash'],$installation_hash);
368        $ok = false;
369    }
370
371    // configs shouldn't exist
372    foreach ($config_files as $file) {
373        if (@file_exists($file)) {
374            $file    = str_replace($_SERVER['DOCUMENT_ROOT'],'{DOCUMENT_ROOT}/', $file);
375            $error[] = sprintf($lang['i_confexists'],$file);
376            $ok      = false;
377        }
378    }
379    return $ok;
380}
381
382
383/**
384 * Check other installation dir/file permission requirements
385 *
386 * @author      Chris Smith <chris@jalakai.co.uk>
387 */
388function check_permissions(){
389    global $error;
390    global $lang;
391
392    $dirs = array(
393        'conf'      => DOKU_LOCAL,
394        'data'      => DOKU_INC.'data',
395        'pages'     => DOKU_INC.'data/pages',
396        'attic'     => DOKU_INC.'data/attic',
397        'media'     => DOKU_INC.'data/media',
398        'meta'      => DOKU_INC.'data/meta',
399        'cache'     => DOKU_INC.'data/cache',
400        'locks'     => DOKU_INC.'data/locks',
401        'index'     => DOKU_INC.'data/index',
402        'tmp'       => DOKU_INC.'data/tmp'
403    );
404
405    $ok = true;
406    foreach($dirs as $dir){
407        if(!@file_exists("$dir/.") || !@is_writable($dir)){
408            $dir     = str_replace($_SERVER['DOCUMENT_ROOT'],'{DOCUMENT_ROOT}', $dir);
409            $error[] = sprintf($lang['i_permfail'],$dir);
410            $ok      = false;
411        }
412    }
413    return $ok;
414}
415
416/**
417 * Check the availability of functions used in DokuWiki and the PHP version
418 *
419 * @author Andreas Gohr <andi@splitbrain.org>
420 */
421function check_functions(){
422    global $error;
423    global $lang;
424    $ok = true;
425
426    if(version_compare(phpversion(),'5.1.2','<')){
427        $error[] = sprintf($lang['i_phpver'],phpversion(),'5.1.2');
428        $ok = false;
429    }
430
431    $funcs = explode(' ','addslashes basename call_user_func chmod copy fgets '.
432                         'file file_exists fseek flush filesize ftell fopen '.
433                         'glob header ignore_user_abort ini_get mail mkdir '.
434                         'ob_start opendir parse_ini_file readfile realpath '.
435                         'rename rmdir serialize session_start unlink usleep '.
436                         'preg_replace file_get_contents htmlspecialchars_decode');
437
438    if (!function_exists('mb_substr')) {
439        $funcs[] = 'utf8_encode';
440        $funcs[] = 'utf8_decode';
441    }
442
443    foreach($funcs as $func){
444        if(!function_exists($func)){
445            $error[] = sprintf($lang['i_funcna'],$func);
446            $ok = false;
447        }
448    }
449    return $ok;
450}
451
452/**
453 * Print language selection
454 *
455 * @author Andreas Gohr <andi@splitbrain.org>
456 */
457function langsel(){
458    global $lang;
459    global $LC;
460
461    $dir = DOKU_INC.'inc/lang';
462    $dh  = opendir($dir);
463    if(!$dh) return;
464
465    $langs = array();
466    while (($file = readdir($dh)) !== false) {
467        if(preg_match('/^[\._]/',$file)) continue;
468        if(is_dir($dir.'/'.$file) && @file_exists($dir.'/'.$file.'/lang.php')){
469            $langs[] = $file;
470        }
471    }
472    closedir($dh);
473    sort($langs);
474
475    echo '<form action="">';
476    echo $lang['i_chooselang'];
477    echo ': <select name="l" onchange="submit()">';
478    foreach($langs as $l){
479        $sel = ($l == $LC) ? 'selected="selected"' : '';
480        echo '<option value="'.$l.'" '.$sel.'>'.$l.'</option>';
481    }
482    echo '</select> ';
483    echo '<input type="submit" value="'.$lang['btn_update'].'" />';
484    echo '</form>';
485}
486
487/**
488 * Print global error array
489 *
490 * @author Andreas Gohr <andi@splitbrain.org>
491 */
492function print_errors(){
493    global $error;
494    echo '<ul>';
495    foreach ($error as $err){
496        echo "<li>$err</li>";
497    }
498    echo '</ul>';
499}
500
501/**
502 * remove magic quotes recursivly
503 *
504 * @author Andreas Gohr <andi@splitbrain.org>
505 */
506function remove_magic_quotes(&$array) {
507    foreach (array_keys($array) as $key) {
508        if (is_array($array[$key])) {
509            remove_magic_quotes($array[$key]);
510        }else {
511            $array[$key] = stripslashes($array[$key]);
512        }
513    }
514}
515
516