xref: /dokuwiki/install.php (revision 8af2e4bbb77efbfe391088f7de187db3262874cb) 
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',realpath(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    'devel'      => '732131839d559198b985e183eefe9a63',
44);
45
46
47
48// begin output
49header('Content-Type: text/html; charset=utf-8');
50?>
51<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
52 "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
53<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="<?php echo $LC?>"
54 lang="<?php echo $LC?>" dir="<?php echo $lang['direction']?>">
55<head>
56    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
57    <title>DokuWiki Installer</title>
58    <style type="text/css">
59        body { width: 90%; margin: 0 auto; font: 84% Verdana, Helvetica, Arial, sans-serif; }
60        img { border: none }
61        br.cl { clear:both; }
62        code { font-size: 110%; color: #008000; }
63        fieldset { border: none }
64        label { display: block;}
65        select.text, input.text { width: 30em; margin: 0 0.5em; }
66    </style>
67    <script type="text/javascript" language="javascript">
68        function acltoggle(){
69            var cb = document.getElementById('acl');
70            var fs = document.getElementById('acldep');
71            if(!cb || !fs) return;
72            if(cb.checked){
73                fs.style.display = '';
74            }else{
75                fs.style.display = 'none';
76            }
77        }
78        window.onload = function(){
79            acltoggle();
80            var cb = document.getElementById('acl');
81            if(cb) cb.onchange = acltoggle;
82        };
83    </script>
84</head>
85<body style="">
86    <h1 style="float:left">
87        <img src="http://wiki.splitbrain.org/_media/wiki:dokuwiki-64.png"
88             style="vertical-align: middle;" alt="" />
89        <?php echo $lang['i_installer']?>
90    </h1>
91    <div style="float:right; margin: 1em;">
92        <?php langsel()?>
93    </div>
94    <br class="cl" />
95
96    <div style="float: right; width: 34%;">
97        <?php
98            if(@file_exists(DOKU_INC.'inc/lang/'.$LC.'/install.html')){
99                include(DOKU_INC.'inc/lang/'.$LC.'/install.html');
100            }else{
101                include(DOKU_INC.'inc/lang/en/install.html');
102            }
103        ?>
104    </div>
105
106    <div style="float: left; width: 58%;">
107        <?php
108            if(! (check_functions() && check_permissions()) ){
109                echo '<p>'.$lang['i_problems'].'</p>';
110                print_errors();
111            }elseif(!check_configs()){
112                echo '<p>'.$lang['i_modified'].'</p>';
113                print_errors();
114            }elseif($_REQUEST['submit']){
115                if(!check_data($_REQUEST['d'])){
116                    print_errors();
117                    print_form($_REQUEST['d']);
118                }elseif(!store_data($_REQUEST['d'])){
119                    echo '<p>'.$lang['i_failure'].'</p>';
120                    print_errors();
121                }else{
122                    echo '<p>'.$lang['i_success'].'</p>';
123                }
124            }else{
125                print_form($_REQUEST['d']);
126            }
127        ?>
128    </div>
129
130<div style="clear: both">
131  <a href="http://wiki.splitbrain.org/wiki:dokuwiki"><img src="lib/tpl/default/images/button-dw.png" alt="driven by DokuWiki" /></a>
132  <a href="http://www.php.net"><img src="lib/tpl/default/images/button-php.gif" alt="powered by PHP" /></a>
133</div>
134</body>
135</html>
136<?php
137
138/**
139 * Print the input form
140 */
141function print_form($d){
142    global $lang;
143    global $LC;
144
145    if(!is_array($d)) $d = array();
146    $d = array_map('htmlspecialchars',$d);
147
148    if(!isset($d['acl'])) $d['acl']=1;
149
150    ?>
151    <form action="" method="post">
152    <input type="hidden" name="l" value="<?php echo $LC ?>" />
153    <fieldset>
154        <label for="title"><?php echo $lang['i_wikiname']?>
155        <input type="text" name="d[title]" id="title" value="<?php echo $d['title'] ?>" style="width: 20em;" />
156        </label>
157
158        <fieldset style="margin-top: 1em;">
159            <label for="acl">
160            <input type="checkbox" name="d[acl]" id="acl" <?php echo(($d['acl'] ? 'checked="checked"' : ''));?> />
161            <?php echo $lang['i_enableacl']?></label>
162
163            <fieldset id="acldep">
164                <label for="superuser"><?php echo $lang['i_superuser']?></label>
165                <input class="text" type="text" name="d[superuser]" id="superuser" value="<?php echo $d['superuser'] ?>" />
166
167                <label for="fullname"><?php echo $lang['fullname']?></label>
168                <input class="text" type="text" name="d[fullname]" id="fullname" value="<?php echo $d['fullname'] ?>" />
169
170                <label for="email"><?php echo $lang['email']?></label>
171                <input class="text" type="text" name="d[email]" id="email" value="<?php echo $d['email'] ?>" />
172
173                <label for="password"><?php echo $lang['pass']?></label>
174                <input class="text" type="password" name="d[password]" id="password" />
175
176                <label for="confirm"><?php echo $lang['passchk']?></label>
177                <input class="text" type="password" name="d[confirm]" id="confirm" />
178
179                <label for="policy"><?php echo $lang['i_policy']?></label>
180                <select class="text" name="d[policy]" id="policy">
181                    <option value="0" <?php echo ($d['policy'] == 0)?'selected="selected"':'' ?>><?php echo $lang['i_pol0']?></option>
182                    <option value="1" <?php echo ($d['policy'] == 1)?'selected="selected"':'' ?>><?php echo $lang['i_pol1']?></option>
183                    <option value="2" <?php echo ($d['policy'] == 2)?'selected="selected"':'' ?>><?php echo $lang['i_pol2']?></option>
184                </select>
185            </fieldset>
186        </fieldset>
187
188    </fieldset>
189    <fieldset id="process">
190        <input class="button" type="submit" name="submit" value="<?php echo $lang['btn_save']?>" />
191    </fieldset>
192    </form>
193    <?php
194}
195
196/**
197 * Check validity of data
198 *
199 * @author Andreas Gohr
200 */
201function check_data($d){
202    global $lang;
203    global $error;
204
205    $ok = true;
206
207    // check input
208    if(empty($d['title'])){
209        $error[] = sprintf($lang['i_badval'],$lang['i_wikiname']);
210        $ok      = false;
211    }
212    if($d['acl']){
213        if(!preg_match('/^[a-z1-9_]+$/',$d['superuser'])){
214            $error[] = sprintf($lang['i_badval'],$lang['i_superuser']);
215            $ok      = false;
216        }
217        if(empty($d['password'])){
218            $error[] = sprintf($lang['i_badval'],$lang['pass']);
219            $ok      = false;
220        }
221        if($d['confirm'] != $d['password']){
222            $error[] = sprintf($lang['i_badval'],$lang['passchk']);
223            $ok      = false;
224        }
225        if(empty($d['fullname']) || strstr($d['fullname'],':')){
226            $error[] = sprintf($lang['i_badval'],$lang['fullname']);
227            $ok      = false;
228        }
229        if(empty($d['email']) || strstr($d['fullname'],':')){
230            $error[] = sprintf($lang['i_badval'],$lang['email']);
231            $ok      = false;
232        }
233    }
234    return $ok;
235}
236
237/**
238 * Writes the data to the config files
239 *
240 * @author  Chris Smith <chris@jalakai.co.uk>
241 */
242function store_data($d){
243    $ok = true;
244    $d['policy'] = (int) $d['policy'];
245
246    // create changes.log
247    if (!@file_exists(DOKU_INC.'data/changes.log')){
248        $ok = $ok && fileWrite(DOKU_INC.'data/changes.log','');
249    }
250
251    // create local.php
252    $now    = date('r');
253    $output = <<<EOT
254<?php
255/**
256 * Dokuwiki's Main Configuration File - Local Settings
257 * Auto-generated by install script
258 * Date: $now
259 */
260
261EOT;
262    $output .= '$conf[\'title\'] = \''.addslashes($d['title'])."';\n";
263    if($d['acl']){
264        $output .= '$conf[\'useacl\'] = 1'.";\n";
265        $output .= '$conf[\'superuser\'] = \''.$d['superuser']."';\n";
266    }
267    $ok = $ok && fileWrite(DOKU_LOCAL.'local.php',$output);
268
269
270    if ($d['acl']) {
271        // create users.auth.php
272        // --- user:MD5password:Real Name:email:groups,comma,seperated
273        $output = join(":",array($d['superuser'], md5($d['password']), $d['fullname'], $d['email'], 'users'));
274        $output = @file_get_contents(DOKU_CONF.'users.auth.php.dist')."\n$output\n";
275        $ok = $ok && fileWrite(DOKU_LOCAL.'users.auth.php', $output);
276
277        // create acl.auth.php
278        $output = <<<EOT
279# acl.auth.php
280# <?php exit()?>
281# Don't modify the lines above
282#
283# Access Control Lists
284#
285# Auto-generated by install script
286# Date: $now
287
288EOT;
289        if($d['policy'] == 2){
290            $output .=  "*               @ALL          0\n";
291            $output .=  "*               @users        8\n";
292        }elseif($d['policy'] == 2){
293            $output .=  "*               @ALL          1\n";
294            $output .=  "*               @users        8\n";
295        }else{
296            $output .=  "*               @ALL          8\n";
297        }
298
299        $ok = $ok && fileWrite(DOKU_LOCAL.'acl.auth.php', $output);
300    }
301    return $ok;
302}
303
304/**
305 * Write the given content to a file
306 *
307 * @author  Chris Smith <chris@jalakai.co.uk>
308 */
309function fileWrite($filename, $data) {
310    global $error;
311    global $lang;
312
313    if (($fp = @fopen($filename, 'wb')) === false) {
314        $filename = str_replace($_SERVER['DOCUMENT_ROOT'],'{DOCUMENT_ROOT}/', $filename);
315        $error[]  = sprintf($lang['i_writeerr'],$filename);
316        return false;
317    }
318
319    if (!empty($data)) { fwrite($fp, $data);  }
320    fclose($fp);
321    return true;
322}
323
324
325/**
326 * check installation dependent local config files and tests for a known
327 * unmodified main config file
328 *
329 * @author      Chris Smith <chris@jalakai.co.uk>
330 */
331function check_configs(){
332    global $error;
333    global $lang;
334    global $dokuwiki_hash;
335
336    $ok = true;
337
338    $config_files = array(
339        'local' => DOKU_LOCAL.'local.php',
340        'users' => DOKU_LOCAL.'users.auth.php',
341        'auth'  => DOKU_LOCAL.'acl.auth.php'
342    );
343
344
345    // main dokuwiki config file (conf/dokuwiki.php) must not have been modified
346    $installation_hash = md5(@file_get_contents(DOKU_CONF.'dokuwiki.php'));
347    if (!in_array($installation_hash, $dokuwiki_hash)) {
348        $error[] = sprintf($lang['i_badhash'],$installation_hash);
349        $ok = false;
350    }
351
352    // configs shouldn't exist
353    foreach ($config_files as $file) {
354        if (@file_exists($file)) {
355            $file    = str_replace($_SERVER['DOCUMENT_ROOT'],'{DOCUMENT_ROOT}/', $file);
356            $error[] = sprintf($lang['i_confexists'],$file);
357            $ok      = false;
358        }
359    }
360    return $ok;
361}
362
363
364/**
365 * Check other installation dir/file permission requirements
366 *
367 * @author      Chris Smith <chris@jalakai.co.uk>
368 */
369function check_permissions(){
370    global $error;
371    global $lang;
372
373    $dirs = array(
374        'conf'      => DOKU_LOCAL,
375        'data'      => DOKU_INC.'data',
376        'pages'     => DOKU_INC.'data/pages',
377        'attic'     => DOKU_INC.'data/attic',
378        'media'     => DOKU_INC.'data/media',
379        'meta'      => DOKU_INC.'data/meta',
380        'cache'     => DOKU_INC.'data/cache',
381        'locks'     => DOKU_INC.'data/locks',
382    );
383
384    $ok = true;
385    foreach($dirs as $dir){
386        if(!@file_exists("$dir/.") || !@is_writable($dir)){
387            $dir     = str_replace($_SERVER['DOCUMENT_ROOT'],'{DOCUMENT_ROOT}/', $dir);
388            $error[] = sprintf($lang['i_permfail'],$dir);
389            $ok      = false;
390        }
391    }
392    return $ok;
393}
394
395/**
396 * Check the availability of functions used in DokuWiki
397 *
398 * @author Andreas Gohr <andi@splitbrain.org>
399 */
400function check_functions(){
401    global $error;
402    global $lang;
403    $funcs = explode(' ','addslashes basename call_user_func chmod copy fgets '.
404                         'file file_exists fseek flush filesize ftell fopen '.
405                         'glob header ignore_user_abort ini_get mail mkdir '.
406                         'ob_start opendir parse_ini_file readfile realpath '.
407                         'rename rmdir serialize session_start unlink usleep');
408
409    $ok = true;
410    foreach($funcs as $func){
411        if(!function_exists($func)){
412            $error[] = sprintf($lang['i_funcna'],$func);
413            $ok = false;
414        }
415    }
416    return $ok;
417}
418
419/**
420 * Print language selection
421 *
422 * @author Andreas Gohr <andi@splitbrain.org>
423 */
424function langsel(){
425    global $lang;
426    global $LC;
427
428    $dir = DOKU_INC.'inc/lang';
429    $dh  = opendir($dir);
430    if(!$dh) return;
431
432    $langs = array();
433    while (($file = readdir($dh)) !== false) {
434        if(preg_match('/^[\._]/',$file)) continue;
435        if(is_dir($dir.'/'.$file) && @file_exists($dir.'/'.$file.'/lang.php')){
436            $langs[] = $file;
437        }
438    }
439    closedir($dh);
440    sort($langs);
441
442
443    echo '<form action="">';
444    echo $lang['i_chooselang'];
445    echo ': <select name="l" onchange="submit()">';
446    foreach($langs as $l){
447        $sel = ($l == $LC) ? 'selected="selected"' : '';
448        echo '<option value="'.$l.'" '.$sel.'>'.$l.'</option>';
449    }
450    echo '</select>';
451    echo '<input type="submit" value="'.$lang['btn_update'].'" />';
452    echo '</form>';
453}
454
455/**
456 * Print gloabl error array
457 *
458 * @author Andreas Gohr <andi@splitbrain.org>
459 */
460function print_errors(){
461    global $error;
462    echo '<ul>';
463    foreach ($error as $err){
464        echo "<li>$err</li>";
465    }
466    echo '</ul>';
467}
468
469/**
470 * remove magic quotes recursivly
471 *
472 * @author Andreas Gohr <andi@splitbrain.org>
473 */
474function remove_magic_quotes(&$array) {
475  foreach (array_keys($array) as $key) {
476    if (is_array($array[$key])) {
477      remove_magic_quotes($array[$key]);
478    }else {
479      $array[$key] = stripslashes($array[$key]);
480    }
481  }
482}
483
484