2 rcs_id('$Id: IniConfig.php,v 1.7 2004-04-20 22:26:27 zorloc Exp $');
5 * A configurator intended to read it's config from a PHP-style INI file,
6 * instead of a PHP file.
8 * Pass a filename to the IniConfig() function and it will read all it's
9 * definitions from there, all by itself, and proceed to do a mass-define
10 * of all valid PHPWiki config items. In this way, we can hopefully be
11 * totally backwards-compatible with the old index.php method, while still
12 * providing a much tastier on-going experience.
14 * @author: Joby Walker, Reini Urban, Matthew Palmer
17 * Copyright 2004 $ThePhpWikiProgrammingTeam
19 * This file is part of PhpWiki.
21 * PhpWiki is free software; you can redistribute it and/or modify
22 * it under the terms of the GNU General Public License as published by
23 * the Free Software Foundation; either version 2 of the License, or
24 * (at your option) any later version.
26 * PhpWiki is distributed in the hope that it will be useful,
27 * but WITHOUT ANY WARRANTY; without even the implied warranty of
28 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
29 * GNU General Public License for more details.
31 * You should have received a copy of the GNU General Public License
32 * along with PhpWiki; if not, write to the Free Software
33 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
37 * - Convert the value lists to provide defaults, so that every "if
38 * (defined())" and "if (!defined())" can fuck off to the dismal hole
41 * - Resurrect the larger "config object" code (in config/) so it'll aid the
42 * GUI config writers, and allow us to do proper validation and default
45 * - Get rid of WikiNameRegexp and KeywordLinkRegexp as globals by finding
46 * everywhere that uses them as variables and modify the code to use
47 * them as constants. Will involve hacking around
48 * pcre_fix_posix_classes (probably with redefines()).
51 include_once "lib/config.php";
53 function IniConfig($file)
56 // List of all valid config options to be define()d which take "values" (not
57 // booleans). Needs to be categorised, and generally made a lot tidier.
58 $_IC_VALID_VALUE = array
59 ('WIKI_NAME', 'ADMIN_USER', 'ADMIN_PASSWD',
60 'HTML_DUMP_SUFFIX', 'MAX_UPLOAD_SIZE', 'MINOR_EDIT_TIMEOUT',
61 'ACCESS_LOG', 'CACHE_CONTROL', 'CACHE_CONTROL_MAX_AGE',
62 'PASSWORD_LENGTH_MINIMUM', 'USER_AUTH_POLICY', 'LDAP_AUTH_HOST',
63 'LDAP_BASE_DN', 'LDAP_AUTH_USER', 'LDAP_AUTH_PASSWORD',
64 'LDAP_SEARCH_FIELD', 'IMAP_AUTH_HOST', 'POP3_AUTH_HOST',
65 'POP3_AUTH_PORT', 'AUTH_USER_FILE', 'AUTH_SESS_USER',
66 'AUTH_SESS_LEVEL', 'GROUP_METHOD',
67 'AUTH_GROUP_FILE', 'EDITING_POLICY', 'THEME', 'CHARSET',
68 'DEFAULT_LANGUAGE', 'WIKI_PGSRC', 'DEFAULT_WIKI_PGSRC',
69 'ALLOWED_PROTOCOLS', 'INLINE_IMAGES', 'SUBPAGE_SEPARATOR',
70 'INTERWIKI_MAP_FILE', 'COPYRIGHTPAGE_TITLE', 'COPYRIGHTPAGE_URL',
71 'AUTHORPAGE_TITLE', 'AUTHORPAGE_URL', 'SERVER_NAME', 'SERVER_PORT',
72 'SCRIPT_NAME', 'DATA_PATH', 'PHPWIKI_DIR', 'VIRTUAL_PATH');
74 // List of all valid config options to be define()d which take booleans.
75 $_IC_VALID_BOOL = array
76 ('DEBUG', 'ENABLE_USER_NEW', 'JS_SEARCHREPLACE',
77 'ENABLE_REVERSE_DNS', 'ENCRYPTED_PASSWD', 'ZIPDUMP_AUTH',
78 'ENABLE_RAW_HTML', 'STRICT_MAILABLE_PAGEDUMPS', 'COMPRESS_OUTPUT',
79 'WIKIDB_NOCACHE_MARKUP', 'ALLOW_ANON_USER', 'ALLOW_ANON_EDIT',
80 'ALLOW_BOGO_LOGIN', 'ALLOW_USER_PASSWORDS',
81 'AUTH_USER_FILE_STORABLE', 'ALLOW_HTTP_AUTH_LOGIN',
82 'ALLOW_USER_LOGIN', 'ALLOW_LDAP_LOGIN', 'ALLOW_IMAP_LOGIN',
83 'WARN_NONPUBLIC_INTERWIKIMAP', 'USE_PATH_INFO',
84 'DISABLE_HTTP_REDIRECT');
86 if(!file_exists($file)){
87 trigger_error("Datasource file '$file' does not exist", E_USER_ERROR);
91 $rs = @parse_ini_file($file);
93 foreach ($_IC_VALID_VALUE as $item) {
94 if (array_key_exists($item, $rs) and !defined($item)) {
95 define($item, $rs[$item]);
99 // Boolean options are slightly special - if they're set to any of
100 // 'false', '0', or 'no' (all case-insensitive) then the value will
101 // be a boolean false, otherwise if there is anything set it'll
103 foreach ($_IC_VALID_BOOL as $item) {
104 if (array_key_exists($item, $rs)) {
106 if (!$val and !defined($item)) {
107 define($item, false);
109 else if (strtolower($val) == 'false' ||
110 strtolower($val) == 'no' ||
113 define($item, false);
122 // Special handling for some config options
123 if ($val = @$rs['INCLUDE_PATH']) {
124 ini_set('include_path', $val);
127 if ($val = @$rs['SESSION_SAVE_PATH']) {
128 ini_set('session.save_path', $val);
133 $DBParams['dbtype'] = @$rs['DATABASE_TYPE'];
134 $DBParams['prefix'] = @$rs['DATABASE_PREFIX'];
135 $DBParams['dsn'] = @$rs['DATABASE_DSN'];
136 $DBParams['db_session_table'] = @$rs['DATABASE_SESSION_TABLE'];
137 $DBParams['dba_handler'] = @$rs['DATABASE_DBA_HANDLER'];
138 $DBParams['directory'] = @$rs['DATABASE_DIRECTORY'];
139 $DBParams['timeout'] = @$rs['DATABASE_TIMEOUT'];
140 if (!defined('USE_DB_SESSION') and $DBParams['db_session_table']) {
141 define('USE_DB_SESSION', true);
145 global $ExpiryParams;
147 $ExpiryParams['major'] = array(
148 'max_age' => @$rs['MAJOR_MAX_AGE'],
149 'min_age' => @$rs['MAJOR_MIN_AGE'],
150 'min_keep' => @$rs['MAJOR_MIN_KEEP'],
151 'keep' => @$rs['MAJOR_KEEP'],
152 'max_keep' => @$rs['MAJOR_MAX_KEEP']
155 $ExpiryParams['minor'] = array(
156 'max_age' => @$rs['MINOR_MAX_AGE'],
157 'min_age' => @$rs['MINOR_MIN_AGE'],
158 'min_keep' => @$rs['MINOR_MIN_KEEP'],
159 'keep' => @$rs['MINOR_KEEP'],
160 'max_keep' => @$rs['MINOR_MAX_KEEP']
163 $ExpiryParams['author'] = array(
164 'max_age' => @$rs['AUTHOR_MAX_AGE'],
165 'min_age' => @$rs['AUTHOR_MIN_AGE'],
166 'min_keep' => @$rs['AUTHOR_MIN_KEEP'],
167 'keep' => @$rs['AUTHOR_KEEP'],
168 'max_keep' => @$rs['AUTHOR_MAX_KEEP']
171 // User authentication
172 global $USER_AUTH_ORDER;
173 $USER_AUTH_ORDER = preg_split('/\s*:\s*/', @$rs['USER_AUTH_ORDER']);
176 global $LDAP_SET_OPTION;
177 $optlist = preg_split('/\s*:\s*/', @$rs['LDAP_SET_OPTION']);
178 foreach ($optlist as $opt) {
179 $bits = preg_split('/\s*=\s*/', $opt, 2);
180 if (count($bits) == 2) {
181 $LDAP_SET_OPTION[$bits[0]] = $bits[1];
184 // Possibly throw some sort of error?
188 // Now it's the external DB authentication stuff's turn
189 global $DBAuthParams;
190 $DBAP_MAP = array('DBAUTH_AUTH_DSN' => 'auth_dsn',
191 'DBAUTH_AUTH_CHECK' => 'auth_check',
192 'DBAUTH_AUTH_USER_EXISTS' => 'auth_user_exists',
193 'DBAUTH_AUTH_CRYPT_METHOD' => 'auth_crypt_method',
194 'DBAUTH_AUTH_UPDATE' => 'auth_update',
195 'DBAUTH_AUTH_CREATE' => 'auth_create',
196 'DBAUTH_PREF_SELECT' => 'pref_select',
197 'DBAUTH_PREF_UPDATE' => 'pref_update',
198 'DBAUTH_IS_MEMBER' => 'is_member',
199 'DBAUTH_GROUP_MEMBERS' => 'group_members',
200 'DBAUTH_USER_GROUPS' => 'user_groups'
203 foreach ($DBAP_MAP as $rskey => $apkey) {
206 $DBAuthParams[$apkey] = $val;
210 // Default Wiki pages
211 global $GenericPages;
212 $GenericPages = preg_split('/\s*:\s*/', @$rs['DEFAULT_WIKI_PAGES']);
214 // Wiki name regexp. Should be a define(), but too many places want
215 // to use it as a variable for me to be bothered changing them all.
216 // Major TODO item, there.
217 global $WikiNameRegexp;
218 $WikiNameRegexp = @$rs['WIKI_NAME_REGEXP'];
220 // Another "too-tricky" redefine
221 global $KeywordLinkRegexp;
222 $keywords = preg_split('/\s*:\s*/', @$rs['KEYWORDS']);
223 $KeywordLinkRegexp = '(?<=' . implode('|^', $keywords) . ')[[:upper:]].*$';
225 global $DisabledActions;
226 $DisabledActions = preg_split('/\s*:\s*/', @$rs['DISABLED_ACTIONS']);
231 // moved from lib/config.php
232 function fix_configs() {
233 global $FieldSeparator, $charset, $WikiNameRegexp, $KeywordLinkRegexp;
234 global $DisabledActions, $HTTP_SERVER_VARS, $DBParams, $LANG;
236 // "\x80"-"\x9f" (and "\x00" - "\x1f") are non-printing control
237 // chars in iso-8859-*
238 // $FieldSeparator = "\263"; //this is a superscript 3 in ISO-8859-1.
239 // $FieldSeparator = "\xFF"; // this byte should never appear in utf-8
240 // FIXME: get rid of constant. pref is dynamic and language specific
242 if (isset($GLOBALS['LANG']) and in_array($GLOBALS['LANG'],array('ja','zh')))
244 if (strtolower($charset) == 'utf-8')
245 $FieldSeparator = "\xFF";
247 $FieldSeparator = "\x81";
249 if (!defined('DEFAULT_LANGUAGE'))
250 define('DEFAULT_LANGUAGE', 'en');
253 // Set up (possibly fake) gettext()
255 if (!function_exists ('bindtextdomain')) {
258 function gettext ($text) {
260 if (!empty ($locale[$text]))
261 return $locale[$text];
266 return gettext($text);
270 // Working around really weird gettext problems: (4.3.2, 4.3.6 win)
271 // bindtextdomain() returns the current domain path.
272 // 1. If the script is not index.php but something like "de", on a different path
273 // then bindtextdomain() fails, but after chdir to the correct path it will work okay.
274 // 2. But the weird error "Undefined variable: bindtextdomain" is generated then.
275 $bindtextdomain_path = FindFile("locale", false, true);
277 $bindtextdomain_path = str_replace("/","\\",$bindtextdomain_path);
278 $bindtextdomain_real = @bindtextdomain("phpwiki", $bindtextdomain);
279 if ($bindtextdomain_real != $bindtextdomain_path) {
280 // this will happen with virtual_paths. chdir and try again.
281 chdir($bindtextdomain_path);
282 $bindtextdomain_real = @bindtextdomain("phpwiki", $bindtextdomain);
284 textdomain("phpwiki");
285 if ($bindtextdomain_real != $bindtextdomain_path) { // change back
286 chdir($bindtextdomain_real . (isWindows() ? "\\.." : "/.."));
290 $WikiNameRegexp = pcre_fix_posix_classes($WikiNameRegexp);
291 $KeywordLinkRegexp = pcre_fix_posix_classes($KeywordLinkRegexp);
293 //////////////////////////////////////////////////////////////////
294 // Autodetect URL settings:
296 if (!defined('SERVER_NAME')) define('SERVER_NAME', $HTTP_SERVER_VARS['SERVER_NAME']);
297 if (!defined('SERVER_PORT')) define('SERVER_PORT', $HTTP_SERVER_VARS['SERVER_PORT']);
298 if (!defined('SERVER_PROTOCOL')) {
299 if (empty($HTTP_SERVER_VARS['HTTPS']) || $HTTP_SERVER_VARS['HTTPS'] == 'off')
300 define('SERVER_PROTOCOL', 'http');
302 define('SERVER_PROTOCOL', 'https');
305 if (!defined('SCRIPT_NAME'))
306 define('SCRIPT_NAME', deduce_script_name());
308 if (!defined('USE_PATH_INFO')) {
310 * If SCRIPT_NAME does not look like php source file,
311 * or user cgi we assume that php is getting run by an
312 * action handler in /cgi-bin. In this case,
313 * I think there is no way to get Apache to pass
314 * useful PATH_INFO to the php script (PATH_INFO
315 * is used to the the php interpreter where the
318 switch (php_sapi_name()) {
320 case 'apache2handler':
321 define('USE_PATH_INFO', true);
324 case 'apache2filter':
325 define('USE_PATH_INFO', false);
328 define('USE_PATH_INFO', ereg('\.(php3?|cgi)$', SCRIPT_NAME));
333 // If user has not defined DATA_PATH, we want to use relative URLs.
334 if (!defined('DATA_PATH') && USE_PATH_INFO)
335 define('DATA_PATH', '..');
337 // If user has not defined PHPWIKI_DIR, and we need it
338 if (!defined('PHPWIKI_DIR') and !file_exists("themes/default")) {
339 $themes_dir = FindFile("themes");
340 define('PHPWIKI_DIR', dirname($themes_dir));
343 if (!defined('VIRTUAL_PATH')) {
344 // We'd like to auto-detect when the cases where apaches
345 // 'Action' directive (or similar means) is used to
346 // redirect page requests to a cgi-handler.
348 // In cases like this, requests for e.g. /wiki/HomePage
349 // get redirected to a cgi-script called, say,
350 // /path/to/wiki/index.php. The script gets all
351 // of /wiki/HomePage as it's PATH_INFO.
354 // How to detect when this has happened reliably?
355 // How to pick out the "virtual path" (in this case '/wiki')?
357 // (Another time an redirect might occur is to a DirectoryIndex
358 // -- the requested URI is '/wikidir/', the request gets
359 // passed to '/wikidir/index.php'. In this case, the
360 // proper VIRTUAL_PATH is '/wikidir/index.php', since the
361 // pages will appear at e.g. '/wikidir/index.php/HomePage'.
364 $REDIRECT_URL = &$HTTP_SERVER_VARS['REDIRECT_URL'];
365 if (USE_PATH_INFO and isset($REDIRECT_URL)
366 and ! IsProbablyRedirectToIndex()) {
367 // FIXME: This is a hack, and won't work if the requested
368 // pagename has a slash in it.
369 define('VIRTUAL_PATH', dirname($REDIRECT_URL . 'x'));
371 define('VIRTUAL_PATH', SCRIPT_NAME);
376 && SERVER_PORT != (SERVER_PROTOCOL == 'https' ? 443 : 80)) {
378 SERVER_PROTOCOL . '://' . SERVER_NAME . ':' . SERVER_PORT);
382 SERVER_PROTOCOL . '://' . SERVER_NAME);
385 if (VIRTUAL_PATH != SCRIPT_NAME) {
386 // Apache action handlers are used.
387 define('PATH_INFO_PREFIX', VIRTUAL_PATH . '/');
390 define('PATH_INFO_PREFIX', '/');
393 define('PHPWIKI_BASE_URL',
394 SERVER_URL . (USE_PATH_INFO ? VIRTUAL_PATH . '/' : SCRIPT_NAME));
396 //////////////////////////////////////////////////////////////////
399 if (empty($DBParams['dbtype']))
400 $DBParams['dbtype'] = 'dba';
402 if (!defined('THEME'))
403 define('THEME', 'default');
405 update_locale(isset($LANG) ? $LANG : DEFAULT_LANGUAGE);
407 if (!defined('WIKI_NAME'))
408 define('WIKI_NAME', _("An unnamed PhpWiki"));
410 if (!defined('HOME_PAGE'))
411 define('HOME_PAGE', _("HomePage"));
415 if (!defined('ACCESS_LOG'))
416 define('ACCESS_LOG', '');
419 // Get remote host name, if apache hasn't done it for us
420 if (empty($HTTP_SERVER_VARS['REMOTE_HOST']) && ENABLE_REVERSE_DNS)
421 $HTTP_SERVER_VARS['REMOTE_HOST'] = gethostbyaddr($HTTP_SERVER_VARS['REMOTE_ADDR']);
423 // check whether the crypt() function is needed and present
424 if (defined('ENCRYPTED_PASSWD') && !function_exists('crypt')) {
425 $error = sprintf(_("Encrypted passwords cannot be used: %s."),
426 "'function crypt()' not available in this version of php");
427 trigger_error($error);
430 if (!defined('ADMIN_PASSWD') or ADMIN_PASSWD == '')
431 trigger_error(_("The admin password cannot be empty. Please update your /index.php"));
433 if (defined('USE_DB_SESSION') and USE_DB_SESSION) {
434 if (! $DBParams['db_session_table'] ) {
435 trigger_error(_("Empty db_session_table. Turn USE_DB_SESSION off or define the table name."),
437 // this is flawed. constants cannot be changed.
438 define('USE_DB_SESSION',false);
441 // default: true (since v1.3.8)
442 if (!defined('USE_DB_SESSION'))
443 define('USE_DB_SESSION',true);
446 if (!defined('ENABLE_USER_NEW')) define('ENABLE_USER_NEW',true);
447 if (!defined('ALLOW_USER_LOGIN'))
448 define('ALLOW_USER_LOGIN', defined('ALLOW_USER_PASSWORDS') && ALLOW_USER_PASSWORDS);
449 if (!defined('ALLOW_ANON_USER')) define('ALLOW_ANON_USER', true);
450 if (!defined('ALLOW_ANON_EDIT')) define('ALLOW_ANON_EDIT', false);
451 if (!defined('REQUIRE_SIGNIN_BEFORE_EDIT')) define('REQUIRE_SIGNIN_BEFORE_EDIT', ! ALLOW_ANON_EDIT);
452 if (!defined('ALLOW_BOGO_LOGIN')) define('ALLOW_BOGO_LOGIN', true);
454 if (ALLOW_USER_LOGIN and !empty($DBAuthParams) and empty($DBAuthParams['auth_dsn'])) {
455 if (isset($DBParams['dsn']))
456 $DBAuthParams['auth_dsn'] = $DBParams['dsn'];
462 // $Log: not supported by cvs2svn $
463 // Revision 1.6 2004/04/20 18:10:27 rurban
464 // config refactoring:
465 // FileFinder is needed for WikiFarm scripts calling index.php
466 // config run-time calls moved to lib/IniConfig.php:fix_configs()
467 // added PHPWIKI_DIR smart-detection code (Theme finder)
468 // moved FileFind to lib/FileFinder.php
469 // cleaned lib/config.php
471 // Revision 1.5 2004/04/20 17:21:57 rurban
472 // WikiFarm code: honor predefined constants
474 // Revision 1.4 2004/04/20 17:08:19 rurban
475 // Some IniConfig fixes: prepend our private lib/pear dir
476 // switch from " to ' in the auth statements
477 // use error handling.
478 // WikiUserNew changes for the new "'$variable'" syntax
480 // TODO: optimization to put config vars into the session.
483 // (c-file-style: "gnu")
488 // c-hanging-comment-ender-p: nil
489 // indent-tabs-mode: nil