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<?php
/*
* Copyright 2009-2010 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->helper(array('form', 'filebin'));
$this->load->model('file_mod');
$this->var->cli_client = false;
$this->file_mod->var->cli_client =& $this->var->cli_client;
$this->var->latest_client = trim(file_get_contents(FCPATH.'data/client/latest'));
// official client uses "fb-client/$version" as useragent
if (strpos($_SERVER['HTTP_USER_AGENT'], 'fb-client') !== false) {
$this->var->cli_client = "fb-client";
} elseif (strpos($_SERVER['HTTP_USER_AGENT'], 'libcurl') !== false) {
$this->var->cli_client = "curl";
}
if ($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'])) {
$this->do_upload();
} elseif ($this->input->post('content')) {
$this->do_paste();
} elseif ($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()
{
$data['title'] = 'Client';
$data['client_link'] = base_url().'data/client/fb-'.$this->var->latest_client.'.tar.gz';
$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/';
$this->load->view($this->var->view_dir.'/header', $data);
$this->load->view($this->var->view_dir.'/client', $data);
$this->load->view($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');
$data['client_link'] = base_url().'data/client/fb-'.$this->var->latest_client.'.tar.gz';
$data['client_link_dir'] = base_url().'data/client/';
$this->load->view($this->var->view_dir.'/header', $data);
$this->load->view($this->var->view_dir.'/upload_form', $data);
$this->load->view($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');
}
// Allow users to delete IDs if their password matches the one used when uploading
function delete()
{
$this->file_mod->check_client_version();
$data = array();
$id = $this->uri->segment(3);
$password = $this->file_mod->get_password();
$data["title"] = "Delete";
$data["id"] = $id;
if ($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) {
$data["msg"] = "No password supplied.";
}
if ($id && !$this->file_mod->id_exists($id)) {
$data["msg"] = "Unkown ID.";
}
}
$this->load->view($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);
}
// Take the content from post instead of a file
// support textareas on the upload form
// XXX: This requires users of suhosin to adjust maxium post and request size
// TODO: merge with do_upload()
// XXX: this is too vulnerable to bots
function do_paste()
{
$this->file_mod->check_client_version();
// FIXME: disable until bot problem is really fixed
return $this->upload_form();
$data = array();
$content = $this->input->post('content')."\n";
$extension = $this->input->post('extension');
// Try to filter spambots
if ($this->input->post("email") != "") return;
// prevent empty pastes from the upload form
if($content === "\n") {
$this->upload_form();
return;
}
// TODO: Display nice error for cli clients
if(strlen($content) > $this->config->item('upload_max_size')) {
$this->load->view($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();
$hash = md5($content);
$folder = $this->file_mod->folder($hash);
file_exists($folder) || mkdir ($folder);
$file = $this->file_mod->file($hash);
file_put_contents($file, $content);
chmod($file, 0600);
$this->file_mod->add_file($hash, $id, 'stdin');
$this->file_mod->show_url($id, $extension);
}
// Handles uploaded files
// TODO: merge with do_paste()
function do_upload()
{
$this->file_mod->check_client_version();
$data = array();
$extension = $this->input->post('extension');
// TODO: Display nice error for cli clients
if(!isset($_FILES['file'])) {
$this->load->view($this->var->view_dir.'/header', $data);
$this->load->view($this->var->view_dir.'/upload_error');
$this->load->view($this->var->view_dir.'/footer');
return;
}
if ($_FILES['file']['error'] !== 0) {
$this->upload_form();
return;
}
$filesize = filesize($_FILES['file']['tmp_name']);
// TODO: Display nice error for cli clients
if ($filesize > $this->config->item('upload_max_size')) {
$this->load->view($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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