db->Quote($input);
}
function parse_shorthand_int($limit) {
if(is_numeric($limit)) {
return (int)$limit;
}
if(preg_match('/^([\d\.]+)([gmk])?b?$/i', "$limit", $m)) {
$value = $m[1];
if (isset($m[2])) {
switch(strtolower($m[2])) {
case 'g': $value *= 1024; # fallthrough
case 'm': $value *= 1024; # fallthrough
case 'k': $value *= 1024; break;
default: $value = -1;
}
}
return (int)$value;
} else {
return -1;
}
}
function to_shorthand_int($int) {
if($int >= pow(1024, 3)) {
return sprintf("%.1fGB", $int / pow(1024, 3));
}
else if($int >= pow(1024, 2)) {
return sprintf("%.1fMB", $int / pow(1024, 2));
}
else if($int >= 1024) {
return sprintf("%.1fKB", $int / 1024);
}
else {
return "$int";
}
}
function tag_explode($tags) {
if(is_string($tags)) {
$tags = explode(' ', $tags);
}
else if(is_array($tags)) {
// do nothing
}
else {
die("tag_explode only takes strings or arrays");
}
$tags = array_map("trim", $tags);
$tag_array = array();
foreach($tags as $tag) {
if(is_string($tag) && strlen($tag) > 0) {
$tag_array[] = $tag;
}
}
if(count($tag_array) == 0) {
$tag_array = array("tagme");
}
return $tag_array;
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
* HTML Generation *
\* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
function make_link($page, $query=null) {
global $config;
$base = $config->get_string('base_href');
if(is_null($query)) {
return "$base/$page";
}
else {
if(strpos($base, "?")) {
return "$base/$page&$query";
}
else {
return "$base/$page?$query";
}
}
}
function build_thumb_html($image, $query=null) {
global $config;
$h_view_link = make_link("post/view/{$image->id}", $query);
$h_tip = html_escape($image->get_tooltip());
$h_thumb_link = $image->get_thumb_link();
$tsize = get_thumbnail_size($image->width, $image->height);
return "
\n";
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
* Misc *
\* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
function get_thumbnail_size($orig_width, $orig_height) {
global $config;
if($orig_width == 0) $orig_width = 192;
if($orig_height == 0) $orig_height = 192;
$max_width = $config->get_int('thumb_width');
$max_height = $config->get_int('thumb_height');
$xscale = ($max_height / $orig_height);
$yscale = ($max_width / $orig_width);
$scale = ($xscale < $yscale) ? $xscale : $yscale;
if($scale > 1 && $config->get_bool('thumb_upscale')) {
return array($orig_width, $orig_height);
}
else {
return array($orig_width*$scale, $orig_height*$scale);
}
}
# $db is the connection object
function _count_execs($db, $sql, $inputarray) {
global $_execs;
if(DEBUG) {
$fp = fopen("sql.log", "a");
fwrite($fp, preg_replace('/\s+/msi', ' ', $sql)."\n");
fclose($fp);
}
if (!is_array($inputarray)) $_execs++;
# handle 2-dimensional input arrays
else if (is_array(reset($inputarray))) $_execs += sizeof($inputarray);
else $_execs++;
# in PHP4.4 and PHP5, we need to return a value by reference
$null = null; return $null;
}
function get_theme_object($file, $class) {
global $config;
$theme = $config->get_string("theme", "default");
if(file_exists("themes/$theme/$file.theme.php")) {
require_once "themes/$theme/$file.theme.php";
return new $class();
}
else {
require_once "ext/$file/theme.php";
return new $class();
}
}
function blockcmp($a, $b) {
if($a->position == $b->position) {
return 0;
}
else {
return ($a->position > $b->position);
}
}
function get_memory_limit() {
global $config;
// thumbnail generation requires lots of memory
$default_limit = 8*1024*1024;
$shimmie_limit = parse_shorthand_int($config->get_int("thumb_mem_limit"));
if($shimmie_limit < 3*1024*1024) {
// we aren't going to fit, override
$shimmie_limit = $default_limit;
}
ini_set("memory_limit", $shimmie_limit);
$memory = parse_shorthand_int(ini_get("memory_limit"));
// changing of memory limit is disabled / failed
if($memory == -1) {
$memory = $default_limit;
}
assert($memory > 0);
return $memory;
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
* Debugging functions *
\* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
function get_debug_info() {
global $config;
if($config->get_bool('debug_enabled')) {
if(function_exists('memory_get_usage')) {
$i_mem = sprintf("%5.2f", ((memory_get_usage()+512)/1024)/1024);
}
else {
$i_mem = "???";
}
if(function_exists('getrusage')) {
$ru = getrusage();
$i_utime = sprintf("%5.2f", ($ru["ru_utime.tv_sec"]*1e6+$ru["ru_utime.tv_usec"])/1000000);
$i_stime = sprintf("%5.2f", ($ru["ru_stime.tv_sec"]*1e6+$ru["ru_stime.tv_usec"])/1000000);
}
else {
$i_utime = "???";
$i_stime = "???";
}
$i_files = count(get_included_files());
global $_execs;
$debug = "
Took $i_utime + $i_stime seconds and {$i_mem}MB of RAM";
$debug .= "; Used $i_files files and $_execs queries";
}
else {
$debug = "";
}
return $debug;
}
function print_obj($array,$title="Object Information") {
global $user, $page;
if(DEBUG && isset($_GET['debug']) && $user->is_admin()) {
// big test:
// $debug_active to be able to kill the function from the file system.
// Look for ?debug (GET type data) to prevent the debug from appearing to regular browsing.
// Finally an admin check, because variables may contain sensitive data.
// once all that is cleared, make a block:
$page->add_block(
new Block(
$title,
str_replace(" ",
"__",
str_replace("\n","
",html_escape(print_r($array,true)))),
"main",1000
)
);
}
// print_r is called with the return option (not echo-style) to get a string
// output to work with.
// Then two str_replaces turn newlines into
tags and indent spaces into
// rendered underscores (which are then hidden.)
// Finally the entire thing is packaged into a block and mailed to the main
// section at the bottom of the pile.
}
// preset tests.
// Prints the contents of $event->args, even though they are clearly visible in
// the URL bar.
function print_url_args() {
global $event;
print_obj($event->args,"URL Arguments");
}
// Prints all the POST data.
function print_POST() {
print_obj($_POST,"\$_POST");
}
// Prints GET, though this is also visible in the url ( url?var&var&var)
function print_GET() {
print_obj($_GET,"\$_GET");
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
* Things which should be in the core API *
\* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
function array_remove($array, $to_remove) {
$array = array_unique($array);
$a2 = array();
foreach($array as $existing) {
if($existing != $to_remove) {
$a2[] = $existing;
}
}
return $a2;
}
function array_add($array, $element) {
$array[] = $element;
$array = array_unique($array);
return $array;
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
* Event API *
\* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
$_event_listeners = array();
function add_event_listener($extension, $pos=50) {
global $_event_listeners;
while(isset($_event_listeners[$pos])) {
$pos++;
}
$_event_listeners[$pos] = $extension;
}
function send_event($event) {
global $_event_listeners;
$my_event_listeners = $_event_listeners; // http://bugs.php.net/bug.php?id=35106
ksort($my_event_listeners);
foreach($my_event_listeners as $listener) {
$listener->receive_event($event);
}
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
* Request initialisation stuff *
\* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
function _get_query_parts() {
if(isset($_GET["q"])) {
$path = $_GET["q"];
}
else if(isset($_SERVER["PATH_INFO"])) {
$path = $_SERVER["PATH_INFO"];
}
else {
$path = "";
}
while(strlen($path) > 0 && $path[0] == '/') {
$path = substr($path, 1);
}
return split('/', $path);
}
function _get_page_request($page_object) {
global $config;
$args = _get_query_parts();
if(count($args) == 0 || strlen($args[0]) == 0) {
$page = $config->get_string('front_page', 'index');
$args = array();
}
else if(count($args) == 1) {
$page = $args[0];
$args = array();
}
else {
$page = $args[0];
$args = array_slice($args, 1);
}
return new PageRequestEvent($page, $args, $page_object);
}
function _get_user() {
global $database;
global $config;
$user = null;
if(isset($_COOKIE["shm_user"]) && isset($_COOKIE["shm_session"])) {
$tmp_user = $database->get_user_session($_COOKIE["shm_user"], $_COOKIE["shm_session"]);
if(!is_null($tmp_user) && $tmp_user->is_enabled()) {
$user = $tmp_user;
}
}
if(is_null($user)) {
$user = $database->get_user($config->get_int("anon_id", 0));
}
assert(!is_null($user));
return $user;
}
?>