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")) {
11 define("LC_CTYPE", 2);
14 define ('_DEBUG_VERBOSE', 1); // verbose msgs and add validator links on footer
15 define ('_DEBUG_PAGELINKS', 2); // list the extraced pagelinks at the top of each pages
16 define ('_DEBUG_PARSER', 4); // verbose parsing steps
17 define ('_DEBUG_TRACE', 8); // test php memory usage, prints php debug backtraces
18 define ('_DEBUG_INFO', 16);
19 define ('_DEBUG_APD', 32); // APD tracing/profiling
20 define ('_DEBUG_LOGIN', 64); // verbose login debug-msg (settings and reason for failure)
21 define ('_DEBUG_SQL', 128); // force check db, force optimize, print some debugging logs
22 define ('_DEBUG_REMOTE', 256); // remote debug into subrequests (xmlrpc, ajax, wikiwyg, ...)
23 // or test local SearchHighlight.
24 // internal links have persistent ?start_debug=1
27 return (substr(php_sapi_name(),0,3) == 'cgi' and
28 isset($GLOBALS['HTTP_ENV_VARS']['GATEWAY_INTERFACE']) and
29 @preg_match('/CGI/',$GLOBALS['HTTP_ENV_VARS']['GATEWAY_INTERFACE']));
33 // copy some $_ENV vars to $_SERVER for CGI compatibility. php does it automatically since when?
35 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) {
36 $GLOBALS['HTTP_SERVER_VARS'][$key] = &$GLOBALS['HTTP_ENV_VARS'][$key];
41 // essential internal stuff
42 if (!check_php_version(6))
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 !== false) return $HTTP_USER_AGENT;
59 if (!$HTTP_USER_AGENT)
60 $HTTP_USER_AGENT = @$GLOBALS['HTTP_SERVER_VARS']['HTTP_USER_AGENT'];
61 if (!$HTTP_USER_AGENT) // CGI
62 $HTTP_USER_AGENT = @$GLOBALS['HTTP_ENV_VARS']['HTTP_USER_AGENT'];
63 if (!$HTTP_USER_AGENT) // local CGI testing
64 $HTTP_USER_AGENT = 'none';
65 return $HTTP_USER_AGENT;
67 function browserDetect($match) {
68 return (strpos(strtolower(browserAgent()), strtolower($match)) !== false);
70 // returns a similar number for Netscape/Mozilla (gecko=5.0)/IE/Opera features.
71 function browserVersion() {
72 $agent = browserAgent();
73 if (strstr($agent, "Mozilla/4.0 (compatible; MSIE"))
74 return (float)substr($agent, 30);
75 elseif (strstr($agent, "Mozilla/5.0 (compatible; Konqueror/"))
76 return (float)substr($agent, 36);
77 elseif (strstr($agent, "AppleWebKit/"))
78 return (float)substr($agent, strpos($agent, "AppleWebKit/") + 12);
80 return (float)substr($agent, 8);
82 function isBrowserIE() {
83 return (browserDetect('Mozilla/') and
84 browserDetect('MSIE'));
86 // problem with transparent PNG's
87 function isBrowserIE55() {
88 return (isBrowserIE() and
89 browserVersion() > 5.1 and browserVersion() < 6.0);
91 // old Netscape prior to Mozilla
92 function isBrowserNetscape($version = false) {
93 $agent = (browserDetect('Mozilla/') and
94 ! browserDetect('Gecko/') and
95 ! browserDetect('MSIE'));
96 if ($version) return $agent and browserVersion() >= $version;
99 // must omit display alternate stylesheets: konqueror 3.1.4
100 // http://sourceforge.net/tracker/index.php?func=detail&aid=945154&group_id=6121&atid=106121
101 function isBrowserKonqueror($version = false) {
102 if ($version) return browserDetect('Konqueror/') and browserVersion() >= $version;
103 return browserDetect('Konqueror/');
105 // MacOSX Safari has certain limitations. Need detection and patches.
106 // * no <object>, only <embed>
107 function isBrowserSafari($version = false) {
108 $found = browserDetect('Spoofer/');
109 $found = browserDetect('AppleWebKit/') or $found;
110 if ($version) return $found and browserVersion() >= $version;
113 function isBrowserOpera($version = false) {
114 if ($version) return browserDetect('Opera/') and browserVersion() >= $version;
115 return browserDetect('Opera/');
120 * If $LANG is undefined:
121 * Smart client language detection, based on our supported languages
122 * HTTP_ACCEPT_LANGUAGE="de-at,en;q=0.5"
124 * We should really check additionally if the i18n HomePage version is defined.
125 * So must defer this to the request loop.
127 function guessing_lang ($languages=false) {
130 $languages = array("en","de","es","fr","it","ja","zh","nl","sv");
131 // ignore possible "_<territory>" and codeset "ja.utf8"
133 require_once("lib/WikiTheme.php");
134 $languages = listAvailableLanguages();
135 if (defined('DEFAULT_LANGUAGE') and in_array(DEFAULT_LANGUAGE, $languages))
138 if ($i = array_search(DEFAULT_LANGUAGE, $languages) !== false) {
139 array_splice($languages, $i, 1);
141 array_unshift($languages, DEFAULT_LANGUAGE);
142 foreach ($languages as $lang) {
143 $arr = FileFinder::locale_versions($lang);
144 $languages = array_merge($languages, $arr);
151 if (isset($GLOBALS['request'])) // in fixup-dynamic-config there's no request yet
152 $accept = $GLOBALS['request']->get('HTTP_ACCEPT_LANGUAGE');
153 elseif (!empty($_SERVER['HTTP_ACCEPT_LANGUAGE']))
154 $accept = $_SERVER['HTTP_ACCEPT_LANGUAGE'];
157 $lang_list = array();
158 $list = explode(",", $accept);
159 for ($i=0; $i<count($list); $i++) {
160 $pos = strchr($list[$i], ";") ;
161 if ($pos === false) {
162 // No Q it is only a locale...
163 $lang_list[$list[$i]] = 100;
166 $q = explode(";",$list[$i]) ;
168 $q = explode("=",$q[1]) ;
169 $lang_list[$loc] = $q[1]*100 ;
176 // compare with languages, ignoring sublang and charset
177 foreach ($lang_list as $lang => $q) {
178 if (in_array($lang, $languages))
180 // de_DE.iso8859-1@euro => de_DE.iso8859-1, de_DE, de
181 // de-DE => de-DE, de
182 foreach (array('@', '.', '_') as $sep) {
183 if ( ($tail = strchr($lang, $sep)) ) {
184 $lang_short = substr($lang, 0, -strlen($tail));
185 if (in_array($lang_short, $languages))
189 if ($pos = strchr($lang, "-") and in_array(substr($lang, 0, $pos), $languages))
190 return substr($lang, 0, $pos);
193 return $languages[0];
199 * This is a version of the builtin setlocale() which is
200 * smart enough to try some alternatives...
202 * @param mixed $category
203 * @param string $locale
204 * @return string The new locale, or <code>false</code> if unable
205 * to set the requested locale.
209 function guessing_setlocale ($category, $locale) {
210 $alt = array('en' => array('C', 'en_US', 'en_GB', 'en_AU', 'en_CA', 'english'),
211 'de' => array('de_DE', 'de_DE', 'de_DE@euro',
212 'de_AT@euro', 'de_AT', 'German_Austria.1252', 'deutsch',
214 'es' => array('es_ES', 'es_MX', 'es_AR', 'spanish'),
215 'nl' => array('nl_NL', 'dutch'),
216 'fr' => array('fr_FR', 'français', 'french'),
217 'it' => array('it_IT'),
218 'sv' => array('sv_SE'),
219 'ja.utf-8' => array('ja_JP','ja_JP.utf-8','japanese'),
220 'ja.euc-jp' => array('ja_JP','ja_JP.eucJP','japanese.euc'),
221 'zh' => array('zh_TW', 'zh_CN'),
223 if (!$locale or $locale=='C') {
224 // do the reverse: return the detected locale collapsed to our LANG
225 $locale = setlocale($category, '');
227 if (strstr($locale, '_')) list ($lang) = split('_', $locale);
228 else $lang = $locale;
229 if (strlen($lang) > 2) {
230 foreach ($alt as $try => $locs) {
231 if (in_array($locale, $locs) or in_array($lang, $locs)) {
232 //if (empty($GLOBALS['LANG'])) $GLOBALS['LANG'] = $try;
239 if (strlen($locale) == 2)
242 list ($lang) = split('_', $locale);
243 if (!isset($alt[$lang]))
246 foreach ($alt[$lang] as $try) {
247 if ($res = setlocale($category, $try))
249 // Try with charset appended...
250 $try = $try . '.' . $GLOBALS['charset'];
251 if ($res = setlocale($category, $try))
253 foreach (array(".", '@', '_') as $sep) {
254 if ($i = strpos($try, $sep)) {
255 $try = substr($try, 0, $i);
256 if (($res = setlocale($category, $try)))
262 // A standard locale name is typically of the form
263 // language[_territory][.codeset][@modifier], where language is
264 // an ISO 639 language code, territory is an ISO 3166 country code,
265 // and codeset is a character set or encoding identifier like
266 // ISO-8859-1 or UTF-8.
270 function update_locale($loc) {
271 if ($loc == 'C' or $loc == 'en') return;
272 // $LANG or DEFAULT_LANGUAGE is too less information, at least on unix for
273 // setlocale(), for bindtextdomain() to succeed.
274 $setlocale = guessing_setlocale(LC_ALL, $loc); // [56ms]
275 if (!$setlocale) { // system has no locale for this language, so gettext might fail
276 $setlocale = FileFinder::_get_lang();
277 list ($setlocale,) = split('_', $setlocale, 2);
278 $setlocale = guessing_setlocale(LC_ALL, $setlocale); // try again
279 if (!$setlocale) $setlocale = $loc;
281 // Try to put new locale into environment (so any
282 // programs we run will get the right locale.)
283 if (!function_exists('bindtextdomain')) {
284 // Reinitialize translation array.
287 // do reinit to purge PHP's static cache [43ms]
288 if ( ($lcfile = FindLocalizedFile("LC_MESSAGES/phpwiki.php", 'missing_ok', 'reinit')) ) {
292 // If PHP is in safe mode, this is not allowed,
294 @putenv("LC_ALL=$setlocale");
295 @putenv("LANG=$loc");
296 @putenv("LANGUAGE=$loc");
299 // To get the POSIX character classes in the PCRE's (e.g.
300 // [[:upper:]]) to match extended characters (e.g. GrüßGott), we have
301 // to set the locale, using setlocale().
303 // The problem is which locale to set? We would like to recognize all
304 // upper-case characters in the iso-8859-1 character set as upper-case
305 // characters --- not just the ones which are in the current $LANG.
307 // As it turns out, at least on my system (Linux/glibc-2.2) as long as
308 // you setlocale() to anything but "C" it works fine. (I'm not sure
309 // whether this is how it's supposed to be, or whether this is a bug
312 // We don't currently use the locale setting for anything else, so for
313 // now, just set the locale to US English.
315 // FIXME: Not all environments may support en_US? We should probably
316 // have a list of locales to try.
317 if (setlocale(LC_CTYPE, 0) == 'C') {
318 $x = setlocale(LC_CTYPE, 'en_US.' . $GLOBALS['charset']);
320 $x = setlocale(LC_CTYPE, $setlocale);
326 /** string pcre_fix_posix_classes (string $regexp)
328 * Older version (pre 3.x?) of the PCRE library do not support
329 * POSIX named character classes (e.g. [[:alnum:]]).
331 * This is a helper function which can be used to convert a regexp
332 * which contains POSIX named character classes to one that doesn't.
334 * All instances of strings like '[:<class>:]' are replaced by the equivalent
335 * enumerated character class.
337 * Implementation Notes:
339 * Currently we use hard-coded values which are valid only for
340 * ISO-8859-1. Also, currently on the classes [:alpha:], [:alnum:],
341 * [:upper:] and [:lower:] are implemented. (The missing classes:
342 * [:blank:], [:cntrl:], [:digit:], [:graph:], [:print:], [:punct:],
343 * [:space:], and [:xdigit:] could easily be added if needed.)
345 * This is a hack. I tried to generate these classes automatically
346 * using ereg(), but discovered that in my PHP, at least, ereg() is
347 * slightly broken w.r.t. POSIX character classes. (It includes
348 * "\xaa" and "\xba" in [:alpha:].)
350 * So for now, this will do. --Jeff <dairiki@dairiki.org> 14 Mar, 2001
352 function pcre_fix_posix_classes ($regexp) {
355 if (defined('GFORGE') and GFORGE) {
359 if (!isset($charset))
360 $charset = CHARSET; // get rid of constant. pref is dynamic and language specific
361 if (in_array($GLOBALS['LANG'], array('zh')))
363 if (strstr($GLOBALS['LANG'],'.utf-8'))
365 elseif (strstr($GLOBALS['LANG'],'.euc-jp'))
367 elseif (strstr($GLOBALS['LANG'], 'ja'))
370 if (strtolower($charset) == 'utf-8') { // thanks to John McPherson
371 // until posix class names/pcre work with utf-8
372 if (preg_match('/[[:upper:]]/', '\xc4\x80'))
374 // utf-8 non-ascii chars: most common (eg western) latin chars are 0xc380-0xc3bf
375 // we currently ignore other less common non-ascii characters
376 // (eg central/east european) latin chars are 0xc432-0xcdbf and 0xc580-0xc5be
377 // and indian/cyrillic/asian languages
379 // this replaces [[:lower:]] with utf-8 match (Latin only)
380 $regexp = preg_replace('/\[\[\:lower\:\]\]/','(?:[a-z]|\xc3[\x9f-\xbf]|\xc4[\x81\x83\x85\x87])',
382 // this replaces [[:upper:]] with utf-8 match (Latin only)
383 $regexp = preg_replace('/\[\[\:upper\:\]\]/','(?:[A-Z]|\xc3[\x80-\x9e]|\xc4[\x80\x82\x84\x86])',
385 } elseif (preg_match('/[[:upper:]]/', 'Ä')) {
386 // First check to see if our PCRE lib supports POSIX character
387 // classes. If it does, there's nothing to do.
390 static $classes = array(
391 'alnum' => "0-9A-Za-z\xc0-\xd6\xd8-\xf6\xf8-\xff",
392 'alpha' => "A-Za-z\xc0-\xd6\xd8-\xf6\xf8-\xff",
393 'upper' => "A-Z\xc0-\xd6\xd8-\xde",
394 'lower' => "a-z\xdf-\xf6\xf8-\xff"
396 $keys = join('|', array_keys($classes));
397 return preg_replace("/\[:($keys):]/e", '$classes["\1"]', $regexp);
400 function deduce_script_name() {
401 $s = &$GLOBALS['HTTP_SERVER_VARS'];
402 $script = @$s['SCRIPT_NAME'];
403 if (empty($script) or $script[0] != '/') {
404 // Some places (e.g. Lycos) only supply a relative name in
405 // SCRIPT_NAME, but give what we really want in SCRIPT_URL.
406 if (!empty($s['SCRIPT_URL']))
407 $script = $s['SCRIPT_URL'];
412 function IsProbablyRedirectToIndex () {
413 // This might be a redirect to the DirectoryIndex,
414 // e.g. REQUEST_URI = /dir/?some_action got redirected
415 // to SCRIPT_NAME = /dir/index.php
417 // In this case, the proper virtual path is still
418 // $SCRIPT_NAME, since pages appear at
419 // e.g. /dir/index.php/HomePage.
421 $requri = preg_replace('/\?.*$/','',$GLOBALS['HTTP_SERVER_VARS']['REQUEST_URI']);
422 $requri = preg_quote($requri, '%');
423 return preg_match("%^${requri}[^/]*$%", $GLOBALS['HTTP_SERVER_VARS']['SCRIPT_NAME']);
427 // by bradhuizenga at softhome dot net from the php docs
428 if (!function_exists('str_ireplace')) {
429 function str_ireplace($find, $replace, $string) {
430 if (!is_array($find)) $find = array($find);
431 if (!is_array($replace)) {
432 if (!is_array($find))
433 $replace = array($replace);
435 // this will duplicate the string into an array the size of $find
439 for ($i = 0; $i < $c; $i++) {
440 $replace[$i] = $rString;
444 foreach ($find as $fKey => $fItem) {
445 $between = explode(strtolower($fItem),strtolower($string));
447 foreach ($between as $bKey => $bItem) {
448 $between[$bKey] = substr($string,$pos,strlen($bItem));
449 $pos += strlen($bItem) + strlen($fItem);
451 $string = implode($replace[$fKey], $between);
458 * safe php4 definition for clone.
459 * php5 copies objects by reference, but we need to clone "deep copy" in some places.
461 * We need to eval it as workaround for the php5 parser.
462 * See http://www.acko.net/node/54
464 if (!check_php_version(5)) {
466 function clone($object) {
473 * array_diff_assoc() returns an array containing all the values from array1 that are not
474 * present in any of the other arguments. Note that the keys are used in the comparison
475 * unlike array_diff(). In core since php-4.3.0
476 * Our fallback here supports only hashes and two args.
477 * $array1 = array("a" => "green", "b" => "brown", "c" => "blue");
478 * $array2 = array("a" => "green", "y" => "yellow", "r" => "red");
479 * => b => brown, c => blue
481 if (!function_exists('array_diff_assoc')) {
482 function array_diff_assoc($a1, $a2) {
484 foreach ($a1 as $k => $v) {
485 if (!isset($a2[$k]) or !$a2[$k])
492 function getUploadFilePath() {
494 if (defined('UPLOAD_FILE_PATH')) {
495 // Force creation of the returned directory if it does not exist.
496 if (!file_exists(UPLOAD_FILE_PATH)) {
497 mkdir(UPLOAD_FILE_PATH, 0775);
499 if (string_ends_with(UPLOAD_FILE_PATH, "/")
500 or string_ends_with(UPLOAD_FILE_PATH, "\\")) {
501 return UPLOAD_FILE_PATH;
503 return UPLOAD_FILE_PATH."/";
506 return defined('PHPWIKI_DIR')
507 ? PHPWIKI_DIR . "/uploads/"
508 : realpath(dirname(__FILE__) . "/../uploads/");
510 function getUploadDataPath() {
511 if (defined('UPLOAD_DATA_PATH')) {
512 return string_ends_with(UPLOAD_DATA_PATH, "/")
513 ? UPLOAD_DATA_PATH : UPLOAD_DATA_PATH."/";
515 return SERVER_URL . (string_ends_with(DATA_PATH, "/") ? '' : "/")
516 . DATA_PATH . '/uploads/';
524 // c-hanging-comment-ender-p: nil
525 // indent-tabs-mode: nil