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<?php
/* Define functions used into the application */
// Converts tags:
// - direction = out: convert spaces to underscores;
// - direction = in: convert underscores to spaces.
function convertTag($tag, $direction = 'out') {
if ($direction == 'out') {
$tag = str_replace(' ', '_', $tag);
} else {
$tag = str_replace('_', ' ', $tag);
}
return $tag;
}
function filter($data, $type = NULL) {
if (is_string($data)) {
$data = trim($data);
$data = stripslashes($data);
switch ($type) {
case 'url':
$data = rawurlencode($data);
break;
default:
$data = htmlspecialchars($data);
break;
}
} else if (is_array($data)) {
foreach(array_keys($data) as $key) {
$row =& $data[$key];
$row = filter($row, $type);
}
}
return $data;
}
function getPerPageCount($userObject = null) {
global $defaultPerPage, $defaultPerPageForAdmins;
if(isset($defaultPerPageForAdmins) && $userObject != null && $userObject->isAdmin()) {
return $defaultPerPageForAdmins;
} else {
return $defaultPerPage;
}
}
function getSortOrder($override = NULL) {
global $defaultOrderBy;
if (isset($_GET['sort'])) {
return preg_replace('/[^a-z]/', '', $_GET['sort']);
} else if (isset($override)) {
return $override;
} else {
return $defaultOrderBy;
}
}
function multi_array_search($needle, $haystack) {
if (is_array($haystack)) {
foreach(array_keys($haystack) as $key) {
$value =& $haystack[$key];
$result = multi_array_search($needle, $value);
if (is_array($result)) {
$return = $result;
array_unshift($return, $key);
return $return;
} elseif ($result == true) {
$return[] = $key;
return $return;
}
}
return false;
} else {
if ($needle === $haystack) {
return true;
} else {
return false;
}
}
}
function createURL($page = '', $ending = '') {
global $cleanurls;
if (!$cleanurls && $page != '') {
$page .= '.php';
}
if(strlen($ending)>0) {
return ROOT . $page .'/'. $ending;
} else {
return ROOT . $page;
}
}
/**
* Creates a "vote for/against this bookmark" URL.
* Also runs htmlspecialchars() on them to prevent XSS.
*
* @param boolean $for For the bookmark (true) or against (false)
* @param integer $bId Bookmark ID
*
* @return string URL to use
*/
function createVoteURL($for, $bId)
{
return htmlspecialchars(
createURL(
'vote',
($for ? 'for' : 'against') . '/' . $bId
),
ENT_QUOTES
);
}
/* Shorten a string like a URL for example by cutting the middle of it */
function shortenString($string, $maxSize=75) {
$output = '';
if(strlen($string) > $maxSize) {
$output = substr($string, 0, $maxSize/2).'...'.substr($string, -$maxSize/2);
} else {
$output = $string;
}
return $output;
}
/* Check url format and check online if the url is a valid page (Not a 404 error for example) */
function checkUrl($url, $checkOnline = true) {
//check format
if(!preg_match("#(ht|f)tp(s?)\://\S+\.\S+#i",$url)) {
return false;
}
if($checkOnline) {
//look if the page doesn't return a void or 40X or 50X HTTP code error
$h = @get_headers($url);
if(is_array($h) && strpos($h[0], '40') === false && strpos($h[0], '50') === false) {
return true;
} else {
return false;
}
} else {
return true;
}
}
/* Returns a concatenated String
* including all the tags from the array $arrayTags (excepted of the $exceptedTag)
* separated by the $separator.
* */
function aggregateTags($arrayTags, $separator = ' + ', $exceptedTag = '') {
$output = '';
for($i = 0; $i<count($arrayTags); $i++) {
if($arrayTags[$i] != $exceptedTag) {
$output.= $arrayTags[$i] . $separator;
}
}
return substr($output, 0, strlen($output) - strlen($separator) );
}
function message_die($msg_code, $msg_text = '', $msg_title = '', $err_line = '', $err_file = '', $sql = '', $db = NULL) {
if(defined('HAS_DIED'))
die(T_('message_die() was called multiple times.'));
define('HAS_DIED', 1);
$sql_store = $sql;
// Get SQL error if we are debugging. Do this as soon as possible to prevent
// subsequent queries from overwriting the status of sql_error()
if (DEBUG_MODE && ($msg_code == GENERAL_ERROR || $msg_code == CRITICAL_ERROR)) {
$sql_error = is_null($db) ? '' : $db->sql_error();
$debug_text = '';
if ($sql_error['message'] != '')
$debug_text .= '<br /><br />'. T_('SQL Error') .' : '. $sql_error['code'] .' '. $sql_error['message'];
if ($sql_store != '')
$debug_text .= '<br /><br />'. $sql_store;
if ($err_line != '' && $err_file != '')
$debug_text .= '</br /><br />'. T_('Line') .' : '. $err_line .'<br />'. T_('File') .' :'. $err_file;
debug_print_backtrace();
}
switch($msg_code) {
case GENERAL_MESSAGE:
if ($msg_title == '')
$msg_title = T_('Information');
break;
case CRITICAL_MESSAGE:
if ($msg_title == '')
$msg_title = T_('Critical Information');
break;
case GENERAL_ERROR:
if ($msg_text == '')
$msg_text = T_('An error occured');
if ($msg_title == '')
$msg_title = T_('General Error');
break;
case CRITICAL_ERROR:
// Critical errors mean we cannot rely on _ANY_ DB information being
// available so we're going to dump out a simple echo'd statement
if ($msg_text == '')
$msg_text = T_('An critical error occured');
if ($msg_title == '')
$msg_title = T_('Critical Error');
break;
}
// Add on DEBUG_MODE info if we've enabled debug mode and this is an error. This
// prevents debug info being output for general messages should DEBUG_MODE be
// set TRUE by accident (preventing confusion for the end user!)
if (DEBUG_MODE && ($msg_code == GENERAL_ERROR || $msg_code == CRITICAL_ERROR)) {
if ($debug_text != '')
$msg_text = $msg_text . '<br /><br /><strong>'. T_('DEBUG MODE') .'</strong>'. $debug_text;
}
echo "<html>\n<body>\n". $msg_title ."\n<br /><br />\n". $msg_text ."</body>\n</html>";
exit;
}
?>
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