2 rcs_id('$Id: config.php,v 1.118 2004-07-13 14:03:31 rurban Exp $');
4 * NOTE: The settings here should probably not need to be changed.
5 * The user-configurable settings have been moved to IniConfig.php
6 * The run-time code has been moved to lib/IniConfig.php:fix_configs()
9 if (!defined("LC_ALL")) {
10 // Backward compatibility (for PHP < 4.0.5)
11 if (!check_php_version(4,0,5)) {
12 define("LC_ALL", "LC_ALL");
13 define("LC_CTYPE", "LC_CTYPE");
16 define("LC_CTYPE", 2);
20 define ('_DEBUG_VERBOSE', 1);
21 define ('_DEBUG_PAGELINKS', 2); // list the extraced pagelinks at the top of each pages
22 define ('_DEBUG_PARSER', 4); // verbose parsing steps
23 define ('_DEBUG_TRACE', 8); // test php memory usage, prints php debug backtraces
24 define ('_DEBUG_INFO', 16);
25 define ('_DEBUG_APD', 32);
28 return (substr(php_sapi_name(),0,3) == 'cgi' and
29 isset($GLOBALS['HTTP_ENV_VARS']['GATEWAY_INTERFACE']) and
30 @preg_match('/CGI/',$GLOBALS['HTTP_ENV_VARS']['GATEWAY_INTERFACE']));
34 // copy some $_ENV vars to $_SERVER for CGI compatibility. php does it automatically since when?
36 foreach (explode(':','SERVER_SOFTWARE:SERVER_NAME:GATEWAY_INTERFACE:SERVER_PROTOCOL:SERVER_PORT:REQUEST_METHOD:HTTP_ACCEPT:PATH_INFO:PATH_TRANSLATED:SCRIPT_NAME:QUERY_STRING:REMOTE_HOST:REMOTE_ADDR:REMOTE_USER:AUTH_TYPE:CONTENT_TYPE:CONTENT_LENGTH') as $key) {
37 $GLOBALS['HTTP_SERVER_VARS'][$key] = &$GLOBALS['HTTP_ENV_VARS'][$key];
42 // essential internal stuff
43 set_magic_quotes_runtime(0);
46 * Browser Detection Functions
49 * NS/IE < 4.0 doesn't accept < ? xml version="1.0" ? >
50 * NS/IE < 4.0 cannot display PNG
51 * NS/IE < 4.0 cannot display all XHTML tags
52 * NS < 5.0 needs textarea wrap=virtual
53 * IE55 has problems with transparent PNG's
56 function browserAgent() {
57 static $HTTP_USER_AGENT = false;
58 if (!$HTTP_USER_AGENT)
59 $HTTP_USER_AGENT = @$GLOBALS['HTTP_SERVER_VARS']['HTTP_USER_AGENT'];
60 if (!$HTTP_USER_AGENT) // CGI
61 $HTTP_USER_AGENT = $GLOBALS['HTTP_ENV_VARS']['HTTP_USER_AGENT'];
62 return $HTTP_USER_AGENT;
64 function browserDetect($match) {
65 return strstr(browserAgent(), $match);
67 // returns a similar number for Netscape/Mozilla (gecko=5.0)/IE/Opera features.
68 function browserVersion() {
69 if (strstr(browserAgent(), "Mozilla/4.0 (compatible; MSIE"))
70 return (float) substr(browserAgent(),30);
71 elseif (strstr(browserAgent(),"Mozilla/5.0 (compatible; Konqueror/"))
72 return (float) substr(browserAgent(),36);
74 return (float) substr(browserAgent(),8);
76 function isBrowserIE() {
77 return (browserDetect('Mozilla/') and
78 browserDetect('MSIE'));
80 // problem with transparent PNG's
81 function isBrowserIE55() {
82 return (isBrowserIE() and
83 browserVersion() > 5.1 and browserVersion() < 6.0);
85 // old Netscape prior to Mozilla
86 function isBrowserNetscape($version = false) {
87 $agent = (browserDetect('Mozilla/') and
88 ! browserDetect('Gecko/') and
89 ! browserDetect('MSIE'));
90 if ($version) return $agent and browserVersion() >= $version;
94 function isBrowserNS3() {
95 return (isBrowserNetscape() and browserVersion() < 4.0);
98 function isBrowserNS4() {
99 return (isBrowserNetscape() and browserVersion() < 5.0);
101 // must omit display alternate stylesheets: konqueror 3.1.4
102 // http://sourceforge.net/tracker/index.php?func=detail&aid=945154&group_id=6121&atid=106121
103 function isBrowserKonqueror($version = false) {
104 if ($version) return browserDetect('Konqueror/') and browserVersion() >= $version;
105 return browserDetect('Konqueror/');
109 * Smart? setlocale().
111 * This is a version of the builtin setlocale() which is
112 * smart enough to try some alternatives...
114 * @param mixed $category
115 * @param string $locale
116 * @return string The new locale, or <code>false</code> if unable
117 * to set the requested locale.
120 function guessing_setlocale ($category, $locale) {
121 if ($res = setlocale($category, $locale))
123 $alt = array('en' => array('C', 'en_US', 'en_GB', 'en_AU', 'en_CA', 'english'),
124 'de' => array('de_DE', 'de_DE', 'de_DE@euro',
125 'de_AT@euro', 'de_AT', 'German_Austria.1252', 'deutsch',
127 'es' => array('es_ES', 'es_MX', 'es_AR', 'spanish'),
128 'nl' => array('nl_NL', 'dutch'),
129 'fr' => array('fr_FR', 'français', 'french'),
130 'it' => array('it_IT'),
131 'sv' => array('sv_SE'),
132 'ja' => array('ja_JP','ja_JP.eucJP','japanese.euc'),
133 'zh' => array('zh_TW', 'zh_CN'),
135 if (strlen($locale) == 2)
138 list ($lang) = split('_', $locale);
139 if (!isset($alt[$lang]))
142 foreach ($alt[$lang] as $try) {
143 if ($res = setlocale($category, $try))
145 // Try with charset appended...
146 $try = $try . '.' . $GLOBALS['charset'];
147 if ($res = setlocale($category, $try))
149 foreach (array('@', ".", '_') as $sep) {
150 list ($try) = split($sep, $try);
151 if ($res = setlocale($category, $try))
157 // A standard locale name is typically of the form
158 // language[_territory][.codeset][@modifier], where language is
159 // an ISO 639 language code, territory is an ISO 3166 country code,
160 // and codeset is a character set or encoding identifier like
161 // ISO-8859-1 or UTF-8.
164 function update_locale($loc) {
165 //require_once(dirname(__FILE__)."/FileFinder.php");
166 $newlocale = guessing_setlocale(LC_ALL, $loc);
168 //trigger_error(sprintf(_("Can't setlocale(LC_ALL,'%s')"), $loc), E_USER_NOTICE);
169 // => LC_COLLATE=C;LC_CTYPE=German_Austria.1252;LC_MONETARY=C;LC_NUMERIC=C;LC_TIME=C
170 //$loc = setlocale(LC_CTYPE, ''); // pull locale from environment.
171 $newlocale = FileFinder::_get_lang();
172 list ($newlocale,) = split('_', $newlocale, 2);
173 //$GLOBALS['LANG'] = $loc;
177 //if (substr($newlocale,0,2) == $loc) // don't update with C or failing setlocale
178 if (!isset($GLOBALS['LANG'])) $GLOBALS['LANG'] = $loc;
179 // Try to put new locale into environment (so any
180 // programs we run will get the right locale.)
182 // If PHP is in safe mode, this is not allowed,
184 @putenv("LC_ALL=$newlocale");
185 @putenv("LANG=$newlocale");
186 @putenv("LANGUAGE=$newlocale");
188 if (!function_exists ('bindtextdomain')) {
189 // Reinitialize translation array.
192 // do reinit to purge PHP's static cache
193 if ( ($lcfile = FindLocalizedFile("LC_MESSAGES/phpwiki.php", 'missing_ok', 'reinit')) ) {
198 // To get the POSIX character classes in the PCRE's (e.g.
199 // [[:upper:]]) to match extended characters (e.g. GrüßGott), we have
200 // to set the locale, using setlocale().
202 // The problem is which locale to set? We would like to recognize all
203 // upper-case characters in the iso-8859-1 character set as upper-case
204 // characters --- not just the ones which are in the current $LANG.
206 // As it turns out, at least on my system (Linux/glibc-2.2) as long as
207 // you setlocale() to anything but "C" it works fine. (I'm not sure
208 // whether this is how it's supposed to be, or whether this is a bug
211 // We don't currently use the locale setting for anything else, so for
212 // now, just set the locale to US English.
214 // FIXME: Not all environments may support en_US? We should probably
215 // have a list of locales to try.
216 if (setlocale(LC_CTYPE, 0) == 'C') {
217 $x = setlocale(LC_CTYPE, 'en_US.' . $GLOBALS['charset']);
219 $x = setlocale(LC_CTYPE, $newlocale);
225 /** string pcre_fix_posix_classes (string $regexp)
227 * Older version (pre 3.x?) of the PCRE library do not support
228 * POSIX named character classes (e.g. [[:alnum:]]).
230 * This is a helper function which can be used to convert a regexp
231 * which contains POSIX named character classes to one that doesn't.
233 * All instances of strings like '[:<class>:]' are replaced by the equivalent
234 * enumerated character class.
236 * Implementation Notes:
238 * Currently we use hard-coded values which are valid only for
239 * ISO-8859-1. Also, currently on the classes [:alpha:], [:alnum:],
240 * [:upper:] and [:lower:] are implemented. (The missing classes:
241 * [:blank:], [:cntrl:], [:digit:], [:graph:], [:print:], [:punct:],
242 * [:space:], and [:xdigit:] could easily be added if needed.)
244 * This is a hack. I tried to generate these classes automatically
245 * using ereg(), but discovered that in my PHP, at least, ereg() is
246 * slightly broken w.r.t. POSIX character classes. (It includes
247 * "\xaa" and "\xba" in [:alpha:].)
249 * So for now, this will do. --Jeff <dairiki@dairiki.org> 14 Mar, 2001
251 function pcre_fix_posix_classes ($regexp) {
253 if (!isset($charset))
254 $charset = CHARSET; // get rid of constant. pref is dynamic and language specific
255 if (in_array($GLOBALS['LANG'],array('zh')))
257 if (in_array($GLOBALS['LANG'],array('ja')))
259 if (strtolower($charset) == 'utf-8') { // thanks to John McPherson
260 // until posix class names/pcre work with utf-8
261 if (preg_match('/[[:upper:]]/', '\xc4\x80'))
263 // utf-8 non-ascii chars: most common (eg western) latin chars are 0xc380-0xc3bf
264 // we currently ignore other less common non-ascii characters
265 // (eg central/east european) latin chars are 0xc432-0xcdbf and 0xc580-0xc5be
266 // and indian/cyrillic/asian languages
268 // this replaces [[:lower:]] with utf-8 match (Latin only)
269 $regexp = preg_replace('/\[\[\:lower\:\]\]/','(?:[a-z]|\xc3[\x9f-\xbf]|\xc4[\x81\x83\x85\x87])',
271 // this replaces [[:upper:]] with utf-8 match (Latin only)
272 $regexp = preg_replace('/\[\[\:upper\:\]\]/','(?:[A-Z]|\xc3[\x80-\x9e]|\xc4[\x80\x82\x84\x86])',
274 } elseif (preg_match('/[[:upper:]]/', 'Ä')) {
275 // First check to see if our PCRE lib supports POSIX character
276 // classes. If it does, there's nothing to do.
279 static $classes = array(
280 'alnum' => "0-9A-Za-z\xc0-\xd6\xd8-\xf6\xf8-\xff",
281 'alpha' => "A-Za-z\xc0-\xd6\xd8-\xf6\xf8-\xff",
282 'upper' => "A-Z\xc0-\xd6\xd8-\xde",
283 'lower' => "a-z\xdf-\xf6\xf8-\xff"
285 $keys = join('|', array_keys($classes));
286 return preg_replace("/\[:($keys):]/e", '$classes["\1"]', $regexp);
289 function deduce_script_name() {
290 $s = &$GLOBALS['HTTP_SERVER_VARS'];
291 $script = @$s['SCRIPT_NAME'];
292 if (empty($script) or $script[0] != '/') {
293 // Some places (e.g. Lycos) only supply a relative name in
294 // SCRIPT_NAME, but give what we really want in SCRIPT_URL.
295 if (!empty($s['SCRIPT_URL']))
296 $script = $s['SCRIPT_URL'];
301 function IsProbablyRedirectToIndex () {
302 // This might be a redirect to the DirectoryIndex,
303 // e.g. REQUEST_URI = /dir/?some_action got redirected
304 // to SCRIPT_NAME = /dir/index.php
306 // In this case, the proper virtual path is still
307 // $SCRIPT_NAME, since pages appear at
308 // e.g. /dir/index.php/HomePage.
310 $requri = preg_replace('/\?.*$/','',$GLOBALS['HTTP_SERVER_VARS']['REQUEST_URI']);
311 $requri = preg_quote($requri, '%');
312 return preg_match("%^${requri}[^/]*$%", $GLOBALS['HTTP_SERVER_VARS']['SCRIPT_NAME']);
316 if (!function_exists('array_key_exists')) { // lib/IniConfig.php, sqlite, adodb, ...
317 function array_key_exists($item, $array) {
318 return isset($array[$item]);
323 if (!function_exists('is_scalar')) { // lib/stdlib.php:hash()
324 function is_scalar($x) {
325 return is_numeric($x) or is_string($x) or is_float($x) or is_bool($x);
329 // => php-4.2.0. pear wants to break old php's! DB uses it now.
330 if (!function_exists('is_a')) {
331 function is_a($item,$class) {
332 return isa($item,$class);
337 // $Log: not supported by cvs2svn $
338 // Revision 1.117 2004/06/21 17:29:17 rurban
339 // pear DB introduced a is_a requirement. so pear lost support for php < 4.2.0
341 // Revision 1.116 2004/06/21 08:39:37 rurban
342 // pear/Cache update from Cache-1.5.4 (added db and trifile container)
343 // pear/DB update from DB-1.6.1 (mysql bugfixes, php5 compat, DB_PORTABILITY features)
345 // Revision 1.115 2004/06/20 14:42:54 rurban
346 // various php5 fixes (still broken at blockparser)
348 // Revision 1.114 2004/06/19 11:48:05 rurban
349 // moved version check forwards: already needed in XmlElement::_quote
351 // Revision 1.113 2004/06/03 12:59:41 rurban
352 // simplify translation
353 // NS4 wrap=virtual only
355 // Revision 1.112 2004/06/02 18:01:46 rurban
356 // init global FileFinder to add proper include paths at startup
357 // adds PHPWIKI_DIR if started from another dir, lib/pear also
358 // fix slashify for Windows
359 // fix USER_AUTH_POLICY=old, use only USER_AUTH_ORDER methods (besides HttpAuth)
361 // Revision 1.111 2004/05/17 17:43:29 rurban
362 // CGI: no PATH_INFO fix
364 // Revision 1.110 2004/05/16 23:10:44 rurban
365 // update_locale wrongly resetted LANG, which broke japanese.
366 // japanese now correctly uses EUC_JP, not utf-8.
367 // more charset and lang headers to help the browser.
369 // Revision 1.109 2004/05/08 14:06:12 rurban
370 // new support for inlined image attributes: [image.jpg size=50x30 align=right]
371 // minor stability and portability fixes
373 // Revision 1.108 2004/05/08 11:25:16 rurban
376 // Revision 1.107 2004/05/06 17:30:38 rurban
377 // CategoryGroup: oops, dos2unix eol
378 // improved phpwiki_version:
379 // pre -= .0001 (1.3.10pre: 1030.099)
380 // -p1 += .001 (1.3.9-p1: 1030.091)
381 // improved InstallTable for mysql and generic SQL versions and all newer tables so far.
382 // abstracted more ADODB/PearDB methods for action=upgrade stuff:
383 // backend->backendType(), backend->database(),
384 // backend->listOfFields(),
385 // backend->listOfTables(),
387 // Revision 1.106 2004/05/02 19:12:14 rurban
388 // fix sf.net bug #945154 Konqueror alt css
390 // Revision 1.105 2004/05/02 15:10:06 rurban
391 // new finally reliable way to detect if /index.php is called directly
392 // and if to include lib/main.php
393 // new global AllActionPages
394 // SetupWiki now loads all mandatory pages: HOME_PAGE, action pages, and warns if not.
395 // WikiTranslation what=buttons for Carsten to create the missing MacOSX buttons
396 // PageGroupTestOne => subpages
397 // renamed PhpWikiRss to PhpWikiRecentChanges
398 // more docs, default configs, ...
400 // Revision 1.104 2004/05/01 11:26:37 rurban
401 // php-4.0.x support: array_key_exists (PHP 4 >= 4.1.0)
403 // Revision 1.103 2004/04/30 00:04:14 rurban
404 // zh (chinese language) support
406 // Revision 1.102 2004/04/29 23:25:12 rurban
407 // re-ordered locale init (as in 1.3.9)
408 // fixed loadfile with subpages, and merge/restore anyway
409 // (sf.net bug #844188)
411 // Revision 1.101 2004/04/26 13:22:32 rurban
412 // calculate bool old or dynamic constants later
414 // Revision 1.100 2004/04/26 12:15:01 rurban
415 // check default config values
417 // Revision 1.99 2004/04/21 14:04:24 zorloc
418 // 'Require lib/FileFinder.php' necessary to allow for call to FindLocalizedFile().
420 // Revision 1.98 2004/04/20 18:10:28 rurban
421 // config refactoring:
422 // FileFinder is needed for WikiFarm scripts calling index.php
423 // config run-time calls moved to lib/IniConfig.php:fix_configs()
424 // added PHPWIKI_DIR smart-detection code (Theme finder)
425 // moved FileFind to lib/FileFinder.php
426 // cleaned lib/config.php
428 // Revision 1.97 2004/04/18 01:11:52 rurban
429 // more numeric pagename fixes.
430 // fixed action=upload with merge conflict warnings.
431 // charset changed from constant to global (dynamic utf-8 switching)
439 // c-hanging-comment-ender-p: nil
440 // indent-tabs-mode: nil