mirror of
https://github.com/WhatCD/Gazelle.git
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155 lines
4.2 KiB
PHP
155 lines
4.2 KiB
PHP
<?
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// This is a file of miscellaneous functions that are called so damn often
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// that it'd just be annoying to stick them in namespaces.
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/**
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* Return true if the given string is numeric.
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*
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* @param mixed $Str
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* @return bool
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*/
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if (PHP_INT_SIZE === 4) {
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function is_number($Str) {
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if ($Str === null || $Str === '') {
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return false;
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}
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if (is_int($Str)) {
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return true;
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}
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if ($Str[0] == '-' || $Str[0] == '+') { // Leading plus/minus signs are ok
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$Str[0] = 0;
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}
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return ltrim($Str, "0..9") === '';
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}
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} else {
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function is_number($Str) {
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return $Str == strval(intval($Str));
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}
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}
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function is_date($Date) {
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list($Y, $M, $D) = explode('-', $Date);
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if (checkdate($M, $D, $Y)) {
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return true;
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}
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return false;
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}
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/**
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* Check that some given variables (usually in _GET or _POST) are numbers
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*
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* @param array $Base array that's supposed to contain all keys to check
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* @param array $Keys list of keys to check
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* @param mixed $Error error code or string to pass to the error() function if a key isn't numeric
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*/
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function assert_numbers(&$Base, $Keys, $Error = 0) {
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// make sure both arguments are arrays
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if (!is_array($Base) || !is_array($Keys)) {
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return;
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}
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foreach ($Keys as $Key) {
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if (!isset($Base[$Key]) || !is_number($Base[$Key])) {
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error($Error);
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}
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}
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}
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/**
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* HTML-escape a string for output.
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* This is preferable to htmlspecialchars because it doesn't screw up upon a double escape.
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*
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* @param string $Str
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* @return string escaped string.
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*/
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function display_str($Str) {
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if ($Str === NULL || $Str === false || is_array($Str)) {
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return '';
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}
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if ($Str != '' && !is_number($Str)) {
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$Str = Format::make_utf8($Str);
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$Str = mb_convert_encoding($Str, 'HTML-ENTITIES', 'UTF-8');
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$Str = preg_replace("/&(?![A-Za-z]{0,4}\w{2,3};|#[0-9]{2,5};)/m", '&', $Str);
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$Replace = array(
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"'",'"',"<",">",
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'€','‚','ƒ','„','…','†','‡','ˆ',
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'‰','Š','‹','Œ','Ž','‘','’','“',
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'”','•','–','—','˜','™','š','›',
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'œ','ž','Ÿ'
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);
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$With = array(
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''','"','<','>',
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'€','‚','ƒ','„','…','†','‡','ˆ',
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'‰','Š','‹','Œ','Ž','‘','’','“',
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'”','•','–','—','˜','™','š','›',
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'œ','ž','Ÿ'
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);
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$Str = str_replace($Replace, $With, $Str);
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}
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return $Str;
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}
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/**
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* Send a message to an IRC bot listening on SOCKET_LISTEN_PORT
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*
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* @param string $Raw An IRC protocol snippet to send.
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*/
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function send_irc($Raw) {
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$IRCSocket = fsockopen(SOCKET_LISTEN_ADDRESS, SOCKET_LISTEN_PORT);
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$Raw = str_replace(array("\n", "\r"), '', $Raw);
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fwrite($IRCSocket, $Raw);
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fclose($IRCSocket);
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}
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/**
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* Display a critical error and kills the page.
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*
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* @param string $Error Error type. Automatically supported:
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* 403, 404, 0 (invalid input), -1 (invalid request)
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* If you use your own string for Error, it becomes the error description.
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* @param boolean $NoHTML If true, the header/footer won't be shown, just the description.
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* @param string $Log If true, the user is given a link to search $Log in the site log.
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*/
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function error($Error, $NoHTML = false, $Log = false) {
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global $Debug;
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require(SERVER_ROOT.'/sections/error/index.php');
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$Debug->profile();
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die();
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}
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/**
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* Convenience function. See doc in permissions.class.php
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*/
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function check_perms($PermissionName, $MinClass = 0) {
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return Permissions::check_perms($PermissionName, $MinClass);
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}
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/**
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* Print JSON status result with an optional message and die.
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*/
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function json_die($Status, $Message) {
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if ($Status == 'success' && $Message) {
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print json_encode(array('status' => $Status, 'response' => $Message));
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} elseif ($Message) {
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print json_encode(array('status' => $Status, 'error' => $Message));
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} else {
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print json_encode(array('status' => $Status));
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}
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die();
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}
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/**
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* Print the site's URL including the appropriate URI scheme, including the trailing slash
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*
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* @param bool $SSL - whether the URL should be crafted for HTTPS or regular HTTP
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*/
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function site_url($SSL = true) {
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return $SSL ? 'https://' . SSL_SITE_URL . '/' : 'http://' . NONSSL_SITE_URL . '/';
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}
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?>
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