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<?php
/*
* Copyright 2009-2011 Florian "Bluewind" Pritz <bluewind@server-speed.net>
*
* Licensed under GPLv3
* (see COPYING for full license text)
*
*/
class File extends CI_Controller {
function __construct()
{
parent::__construct();
$this->load->library('migration');
if ( ! $this->migration->current()) {
show_error($this->migration->error_string());
}
mb_internal_encoding('UTF-8');
$this->load->helper(array('form', 'filebin'));
$this->load->model('file_mod');
$this->var->cli_client = false;
$this->file_mod->var->cli_client =& $this->var->cli_client;
$this->var->latest_client = false;
if (file_exists(FCPATH.'data/client/latest')) {
$this->var->latest_client = trim(file_get_contents(FCPATH.'data/client/latest'));
}
// official client uses "fb-client/$version" as useragent
$clients = array("fb-client", "libcurl", "pyfb");
foreach ($clients as $client) {
if (strpos($_SERVER['HTTP_USER_AGENT'], $client) !== false) {
$this->var->cli_client = true;
break;
}
}
if ($this->var->cli_client) {
$this->var->view_dir = "file_plaintext";
} else {
$this->var->view_dir = "file";
}
}
function index()
{
// Try to guess what the user would like to do.
// File uploads should be checked first because they are usually big and
// take quite some time to upload.
$id = $this->uri->segment(1);
if(isset($_FILES['file'])) {
$this->do_upload();
} elseif ($id != "file" && $this->file_mod->id_exists($id)) {
$this->file_mod->download();
} elseif ($id && $id != "file") {
$this->file_mod->non_existent();
} else {
$this->upload_form();
}
}
function client($load_header = true)
{
$data['title'] = 'Client';
if ($this->var->latest_client) {
$data['client_link'] = base_url().'data/client/fb-'.$this->var->latest_client.'.tar.gz';
} else {
$data['client_link'] = false;
}
$data['client_link_dir'] = base_url().'data/client/';
$data['client_link_deb'] = base_url().'data/client/deb/';
$data['client_link_slackware'] = base_url().'data/client/slackware/';
if ($load_header) {
$this->load->view($this->var->view_dir.'/header', $data);
}
$this->load->view($this->var->view_dir.'/client', $data);
if ($load_header) {
$this->load->view($this->var->view_dir.'/footer', $data);
}
}
function upload_form()
{
$data = array();
$data['title'] = 'Upload';
$data['small_upload_size'] = $this->config->item('small_upload_size');
$data['max_upload_size'] = $this->config->item('upload_max_size');
$data['upload_max_age'] = $this->config->item('upload_max_age')/60/60/24;
$data['contact_me_url'] = $this->config->item('contact_me_url');
$this->load->view($this->var->view_dir.'/header', $data);
$this->load->view($this->var->view_dir.'/upload_form', $data);
if ($this->var->cli_client) {
$this->client(false);
}
$this->load->view($this->var->view_dir.'/footer', $data);
}
// Allow CLI clients to query the server for the maxium filesize so they can
// stop the upload before wasting time and bandwith
function get_max_size()
{
echo $this->config->item('upload_max_size');
}
function upload_history()
{
$password = $this->file_mod->get_password();
$this->load->library("MemcacheLibrary");
if (! $cached = $this->memcachelibrary->get("history_".$this->var->view_dir."_".$password)) {
$data = array();
$query = array();
$lengths = array();
$fields = array("id", "filename", "mimetype", "date", "hash");
$data['title'] = 'Upload history';
foreach($fields as $length_key) {
$lengths[$length_key] = 0;
}
if ($password != "NULL") {
$query = $this->db->query("
SELECT ".implode(",", $fields)."
FROM files
WHERE password = ?
ORDER BY date
", array($password))->result_array();
}
foreach($query as $key => $item) {
$query[$key]["date"] = date("r", $item["date"]);
// Keep track of longest string to pad plaintext output correctly
foreach($fields as $length_key) {
$len = mb_strlen($query[$key][$length_key]);
if ($len > $lengths[$length_key]) {
$lengths[$length_key] = $len;
}
}
}
$data["query"] = $query;
$data["lengths"] = $lengths;
$cached = "";
$cached .= $this->load->view($this->var->view_dir.'/header', $data, true);
$cached .= $this->load->view($this->var->view_dir.'/upload_history', $data, true);
$cached .= $this->load->view($this->var->view_dir.'/footer', $data, true);
$this->memcachelibrary->set('history_'.$this->var->view_dir."_".$password, $cached, 42);
}
echo $cached;
}
// Allow users to delete IDs if their password matches the one used when uploading
function delete()
{
$data = array();
$id = $this->uri->segment(3);
$password = $this->file_mod->get_password();
$data["title"] = "Delete";
$data["id"] = $id;
if ($id && !$this->file_mod->id_exists($id)) {
$data["msg"] = "Unkown ID.";
} elseif ($password != "NULL") {
if ($this->file_mod->delete_id($id)) {
$this->load->view($this->var->view_dir.'/header', $data);
$this->load->view($this->var->view_dir.'/deleted', $data);
$this->load->view($this->var->view_dir.'/footer', $data);
return;
} else {
$data["msg"] = "Deletion failed. Is the password correct?";
}
} else {
if ($this->var->cli_client) {
$data["msg"] = "No password supplied.";
}
}
$this->load->view($this->var->view_dir.'/header', $data);
$this->load->view($this->var->view_dir.'/delete_form', $data);
$this->load->view($this->var->view_dir.'/footer', $data);
}
// Handles uploaded files
function do_upload()
{
$data = array();
if ($this->uri->segment(3)) {
$this->var->cli_client = true;
$this->var->view_dir = "file_plaintext";
}
$extension = $this->input->post('extension');
if(!isset($_FILES['file']) || $_FILES['file']['error'] !== 0) {
$this->output->set_status_header(400);
$errors = array(
0=>"There is no error, the file uploaded with success",
1=>"The uploaded file exceeds the upload_max_filesize directive in php.ini",
2=>"The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form",
3=>"The uploaded file was only partially uploaded",
4=>"No file was uploaded",
6=>"Missing a temporary folder"
);
$data["msg"] = $errors[$_FILES['file']['error']];
$this->load->view($this->var->view_dir.'/header', $data);
$this->load->view($this->var->view_dir.'/upload_error', $data);
$this->load->view($this->var->view_dir.'/footer');
return;
}
$filesize = filesize($_FILES['file']['tmp_name']);
if ($filesize > $this->config->item('upload_max_size')) {
$this->output->set_status_header(413);
$this->load->view($this->var->view_dir.'/header', $data);
$this->load->view($this->var->view_dir.'/too_big');
$this->load->view($this->var->view_dir.'/footer');
return;
}
$id = $this->file_mod->new_id();
$hash = md5_file($_FILES['file']['tmp_name']);
$filename = $_FILES['file']['name'];
$folder = $this->file_mod->folder($hash);
file_exists($folder) || mkdir ($folder);
$file = $this->file_mod->file($hash);
move_uploaded_file($_FILES['file']['tmp_name'], $file);
chmod($file, 0600);
$this->file_mod->add_file($hash, $id, $filename);
$this->file_mod->show_url($id, $extension);
}
// Removes old files
function cron()
{
if ($this->config->item('upload_max_age') == 0) return;
$oldest_time = (time()-$this->config->item('upload_max_age'));
$small_upload_size = $this->config->item('small_upload_size');
$query = $this->db->query('SELECT hash, id FROM files WHERE date < ?',
array($oldest_time));
foreach($query->result_array() as $row) {
$file = $this->file_mod->file($row['hash']);
if (!file_exists($file)) {
$this->db->query('DELETE FROM files WHERE id = ? LIMIT 1', array($row['id']));
continue;
}
if (filesize($file) > $small_upload_size) {
if (filemtime($file) < $oldest_time) {
unlink($file);
$this->db->query('DELETE FROM files WHERE hash = ?', array($row['hash']));
} else {
$this->db->query('DELETE FROM files WHERE id = ? LIMIT 1', array($row['id']));
}
}
}
}
}
# vim: set noet:
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