function get_filedata($id)
{
return cache_function("filedatav2-{$id}", 300, function () use($id) {
$query = $this->db->select('files.id, hash, file_storage.id storage_id, filename, mimetype, files.date, user, filesize')->from('files')->join('file_storage', 'file_storage.id = files.file_storage_id')->where('files.id', $id)->limit(1)->get();
if ($query->num_rows() > 0) {
$data = $query->row_array();
$data["data_id"] = $data["hash"] . "-" . $data["storage_id"];
return $data;
} else {
return false;
}
});
}
public static function get_lexers()
{
return cache_function('lexers-v2', 1800, function () {
$last_desc = "";
foreach (self::get_pygments_info() as $lexer) {
$desc = $lexer['fullname'];
$name = $lexer['names'][0];
if ($desc == $last_desc) {
continue;
}
$last_desc = $desc;
$lexers[$name] = $desc;
}
$lexers["text"] = "Plain text";
return $lexers;
});
}
function thumbnail()
{
$id = $this->uri->segment(3);
if (!$this->mfile->valid_id($id)) {
return $this->_non_existent();
}
$etag = "{$id}-thumb";
handle_etag($etag);
$thumb_size = 150;
$cache_timeout = 60 * 60 * 24 * 30;
# 1 month
$filedata = $this->mfile->get_filedata($id);
if (!$filedata) {
throw new \exceptions\ApiException("file/thumbnail/filedata-unavailable", "Failed to get file data");
}
$cache_key = $filedata['data_id'] . '_thumb_' . $thumb_size;
$thumb = cache_function($cache_key, $cache_timeout, function () use($filedata, $thumb_size) {
$CI =& get_instance();
$img = new libraries\Image($this->mfile->file($filedata["data_id"]));
$img->makeThumb($thumb_size, $thumb_size);
$thumb = $img->get(IMAGETYPE_JPEG);
return $thumb;
});
$this->output->set_header("Cache-Control:max-age=31536000, public");
$this->output->set_header("Expires: " . date("r", time() + 365 * 24 * 60 * 60));
$this->output->set_content_type("image/jpeg");
$this->output->set_output($thumb);
}
</div>
</div>
<?php
}
?>
<!-- content -->
<div id="content">
<div class="row-1">
<div class="inside">
<div class="container">
<div class="menu2">
<div>
<?php
if (isAuthenticated()) {
showMenu();
}
?>
</div>
</div>
<?php
if (isAuthenticated()) {
if (isset($_GET['callee'])) {
cache_function("showBreadCrumb", array("pageid" => $_SESSION['pageid'], "callee" => $_GET['callee']));
} else {
cache_function("showBreadCrumb", array("pageid" => $_SESSION['pageid']));
}
echo "<hr>\n";
}
?>
<div class="content">
/**
* Cache the result of a function call in the cache backend and in the memory of this process.
* @param key cache key to use
* @param ttl time to live for the cache entry
* @param function function to call
* @return return value of function (will be cached)
*/
function cache_function_full($key, $ttl, $function)
{
$local_key = 'cache_function-' . $key;
if (static_storage($local_key) !== null) {
return static_storage($local_key);
}
$ret = cache_function($key, $ttl, $function);
static_storage($local_key, $ret);
return $ret;
}