2 rcs_id('$Id: config.php,v 1.43 2001-09-19 19:16:27 dairiki Exp $');
4 * NOTE: the settings here should probably not need to be changed.
7 * (The user-configurable settings have been moved to index.php.)
10 if (!defined("LC_ALL")) {
11 // Backward compatibility (for PHP < 4.0.5)
12 define("LC_ALL", "LC_ALL");
13 define("LC_CTYPE", "LC_CTYPE");
16 // essential internal stuff
17 set_magic_quotes_runtime(0);
21 // "\x80"-"\x9f" (and "\x00" - "\x1f") are non-printing control
22 // chars in iso-8859-*
23 // $FieldSeparator = "\263"; //this is a superscript 3 in ISO-8859-1.
24 $FieldSeparator = "\x81";
26 require_once('lib/FileFinder.php');
27 // Search PHP's include_path to find file or directory.
28 function FindFile ($file, $missing_okay = false)
32 $finder = new FileFinder;
33 return $finder->findFile($file, $missing_okay);
36 // Search PHP's include_path to find file or directory.
37 // Searches for "locale/$LANG/$file", then for "$file".
38 function FindLocalizedFile ($file, $missing_okay = false)
42 $finder = new LocalizedFileFinder;
43 return $finder->findFile($file, $missing_okay);
47 setlocale(LC_ALL, "$LANG");
48 putenv("LC_ALL=$LANG");
50 if (!function_exists ('gettext'))
54 function gettext ($text) {
56 if (!empty ($locale[$text]))
57 return $locale[$text];
61 if ( ($lcfile = FindLocalizedFile("LC_MESSAGES/phpwiki.php", 'missing_ok')) )
69 bindtextdomain ("phpwiki", FindFile("locale"));
70 textdomain ("phpwiki");
75 // To get the POSIX character classes in the PCRE's (e.g.
76 // [[:upper:]]) to match extended characters (e.g. GrüßGott), we have
77 // to set the locale, using setlocale().
79 // The problem is which locale to set? We would like to recognize all
80 // upper-case characters in the iso-8859-1 character set as upper-case
81 // characters --- not just the ones which are in the current $LANG.
83 // As it turns out, at least on my system (Linux/glibc-2.2) as long as
84 // you setlocale() to anything but "C" it works fine. (I'm not sure
85 // whether this is how it's supposed to be, or whether this is a bug
88 // We don't currently use the locale setting for anything else, so for
89 // now, just set the locale to US English.
91 // FIXME: Not all environments may support en_US? We should probably
92 // have a list of locales to try.
93 if (setlocale(LC_CTYPE, 0) == 'C')
94 setlocale(LC_CTYPE, 'en_US.iso-8859-1');
96 /** string pcre_fix_posix_classes (string $regexp)
98 * Older version (pre 3.x?) of the PCRE library do not support
99 * POSIX named character classes (e.g. [[:alnum:]]).
101 * This is a helper function which can be used to convert a regexp
102 * which contains POSIX named character classes to one that doesn't.
104 * All instances of strings like '[:<class>:]' are replaced by the equivalent
105 * enumerated character class.
107 * Implementation Notes:
109 * Currently we use hard-coded values which are valid only for
110 * ISO-8859-1. Also, currently on the classes [:alpha:], [:alnum:],
111 * [:upper:] and [:lower:] are implemented. (The missing classes:
112 * [:blank:], [:cntrl:], [:digit:], [:graph:], [:print:], [:punct:],
113 * [:space:], and [:xdigit:] could easily be added if needed.)
115 * This is a hack. I tried to generate these classes automatically
116 * using ereg(), but discovered that in my PHP, at least, ereg() is
117 * slightly broken w.r.t. POSIX character classes. (It includes
118 * "\xaa" and "\xba" in [:alpha:].)
120 * So for now, this will do. --Jeff <dairiki@dairiki.org> 14 Mar, 2001
122 function pcre_fix_posix_classes ($regexp) {
123 // First check to see if our PCRE lib supports POSIX character
124 // classes. If it does, there's nothing to do.
125 if (preg_match('/[[:upper:]]/', 'A'))
128 static $classes = array(
129 'alnum' => "0-9A-Za-z\xc0-\xd6\xd8-\xf6\xf8-\xff",
130 'alpha' => "A-Za-z\xc0-\xd6\xd8-\xf6\xf8-\xff",
131 'upper' => "A-Z\xc0-\xd6\xd8-\xde",
132 'lower' => "a-z\xdf-\xf6\xf8-\xff"
135 $keys = join('|', array_keys($classes));
137 return preg_replace("/\[:($keys):]/e", '$classes["\1"]', $regexp);
140 $WikiNameRegexp = pcre_fix_posix_classes($WikiNameRegexp);
142 //////////////////////////////////////////////////////////////////
143 // Autodetect URL settings:
145 if (!defined('SERVER_NAME')) define('SERVER_NAME', $HTTP_SERVER_VARS['SERVER_NAME']);
146 if (!defined('SERVER_PORT')) define('SERVER_PORT', $HTTP_SERVER_VARS['SERVER_PORT']);
147 if (!defined('SCRIPT_NAME')) define('SCRIPT_NAME', $HTTP_SERVER_VARS['SCRIPT_NAME']);
148 if (!defined('DATA_PATH'))
149 define('DATA_PATH', dirname(SCRIPT_NAME));
150 if (!defined('USE_PATH_INFO'))
153 * If SCRIPT_NAME does not look like php source file,
154 * or user cgi we assume that php is getting run by an
155 * action handler in /cgi-bin. In this case,
156 * I think there is no way to get Apache to pass
157 * useful PATH_INFO to the php script (PATH_INFO
158 * is used to the the php interpreter where the
161 if (php_sapi_name() == 'apache')
162 define('USE_PATH_INFO', true);
164 define('USE_PATH_INFO', ereg('\.(php3?|cgi)$', $SCRIPT_NAME));
168 function IsProbablyRedirectToIndex ()
170 // This might be a redirect to the DirectoryIndex,
171 // e.g. REQUEST_URI = /dir/ got redirected
172 // to SCRIPT_NAME = /dir/index.php
174 // In this case, the proper virtual path is still
175 // $SCRIPT_NAME, since pages appear at
176 // e.g. /dir/index.php/HomePage.
178 //global $REQUEST_URI, $SCRIPT_NAME;
179 extract($GLOBALS['HTTP_SERVER_VARS']);
181 $requri = preg_quote($REQUEST_URI, '%');
182 return preg_match("%^${requri}[^/]*$%", $SCRIPT_NAME);
186 if (!defined('VIRTUAL_PATH'))
188 // We'd like to auto-detect when the cases where apaches
189 // 'Action' directive (or similar means) is used to
190 // redirect page requests to a cgi-handler.
192 // In cases like this, requests for e.g. /wiki/HomePage
193 // get redirected to a cgi-script called, say,
194 // /path/to/wiki/index.php. The script gets all
195 // of /wiki/HomePage as it's PATH_INFO.
198 // How to detect when this has happened reliably?
199 // How to pick out the "virtual path" (in this case '/wiki')?
201 // (Another time an redirect might occur is to a DirectoryIndex
202 // -- the requested URI is '/wikidir/', the request gets
203 // passed to '/wikidir/index.php'. In this case, the
204 // proper VIRTUAL_PATH is '/wikidir/index.php', since the
205 // pages will appear at e.g. '/wikidir/index.php/HomePage'.
208 $REDIRECT_URL = &$HTTP_SERVER_VARS['REDIRECT_URL'];
209 if (USE_PATH_INFO and isset($REDIRECT_URL)
210 and ! IsProbablyRedirectToIndex())
212 // FIXME: This is a hack, and won't work if the requested
213 // pagename has a slash in it.
214 define('VIRTUAL_PATH', dirname($REDIRECT_URL . 'x'));
217 define('VIRTUAL_PATH', SCRIPT_NAME);
220 if (SERVER_PORT && SERVER_PORT != 80)
222 "http://" . SERVER_NAME . ':' . SERVER_PORT);
225 "http://" . SERVER_NAME);
227 if (VIRTUAL_PATH != SCRIPT_NAME)
229 // Apache action handlers are used.
230 define('PATH_INFO_PREFIX', VIRTUAL_PATH . "/");
233 define("PATH_INFO_PREFIX", '/');
236 //////////////////////////////////////////////////////////////////
239 if (empty($DBParams['dbtype']))
241 $DBParams['dbtype'] = 'dba';
244 // InterWiki linking -- wiki-style links to other wikis on the web
246 if (defined('INTERWIKI_MAP_FILE'))
248 include ('lib/interwiki.php');
253 if (!defined('ACCESS_LOG'))
254 define('ACCESS_LOG', '');
257 // Get remote host name, if apache hasn't done it for us
258 if (empty($HTTP_SERVER_VARS['REMOTE_HOST']) && ENABLE_REVERSE_DNS)
259 $HTTP_SERVER_VARS['REMOTE_HOST'] = gethostbyaddr($HTTP_SERVER_VARS['REMOTE_ADDR']);
267 // c-hanging-comment-ender-p: nil
268 // indent-tabs-mode: nil