| 1 | <?php if (!defined('BB2_CORE')) die("I said no cheating!"); |
| 2 | |
| 3 | // Miscellaneous helper functions. |
| 4 | |
| 5 | // stripos() needed because stripos is only present on PHP 5 |
| 6 | if (!function_exists('stripos')) { |
| 7 | function stripos($haystack,$needle,$offset = 0) { |
| 8 | return(strpos(strtolower($haystack),strtolower($needle),$offset)); |
| 9 | } |
| 10 | } |
| 11 | |
| 12 | // str_split() needed because str_split is only present on PHP 5 |
| 13 | if (!function_exists('str_split')) { |
| 14 | function str_split($string, $split_length=1) |
| 15 | { |
| 16 | if ($split_length < 1) { |
| 17 | return false; |
| 18 | } |
| 19 | |
| 20 | for ($pos=0, $chunks = array(); $pos < strlen($string); $pos+=$split_length) { |
| 21 | $chunks[] = substr($string, $pos, $split_length); |
| 22 | } |
| 23 | return $chunks; |
| 24 | } |
| 25 | } |
| 26 | |
| 27 | // Convert a string to mixed-case on word boundaries. |
| 28 | function uc_all($string) { |
| 29 | $temp = preg_split('/(\W)/', str_replace("_", "-", $string), -1, PREG_SPLIT_DELIM_CAPTURE); |
| 30 | foreach ($temp as $key=>$word) { |
| 31 | $temp[$key] = ucfirst(strtolower($word)); |
| 32 | } |
| 33 | return join ('', $temp); |
| 34 | } |
| 35 | |
| 36 | // Determine if an IP address resides in a CIDR netblock or netblocks. |
| 37 | function match_cidr($addr, $cidr) { |
| 38 | $output = false; |
| 39 | |
| 40 | if (is_array($cidr)) { |
| 41 | foreach ($cidr as $cidrlet) { |
| 42 | if (match_cidr($addr, $cidrlet)) { |
| 43 | $output = true; |
| 44 | } |
| 45 | } |
| 46 | } else { |
| 47 | @list($ip, $mask) = explode('/', $cidr); |
| 48 | if (!$mask) $mask = 32; |
| 49 | $mask = pow(2,32) - pow(2, (32 - $mask)); |
| 50 | $output = ((ip2long($addr) & $mask) == (ip2long($ip) & $mask)); |
| 51 | } |
| 52 | return $output; |
| 53 | } |
| 54 | |
| 55 | // Obtain all the HTTP headers. |
| 56 | // NB: on PHP-CGI we have to fake it out a bit, since we can't get the REAL |
| 57 | // headers. Run PHP as Apache 2.0 module if possible for best results. |
| 58 | function bb2_load_headers() { |
| 59 | if (!is_callable('getallheaders')) { |
| 60 | $headers = array(); |
| 61 | foreach ($_SERVER as $h => $v) |
| 62 | if (ereg('HTTP_(.+)', $h, $hp)) |
| 63 | $headers[str_replace("_", "-", uc_all($hp[1]))] = $v; |
| 64 | } else { |
| 65 | $headers = getallheaders(); |
| 66 | } |
| 67 | return $headers; |
| 68 | } |
| 69 | |
| 70 | ?> |
| 71 | |
