* * Licensed under GPLv3 * (see COPYING for full license text) * */ class File_mod extends Model { function __construct() { parent::Model(); } function new_id() { $id = $this->random_id(3,6); if ($this->id_exists($id) || $id == 'file') { return $this->new_id(); } else { return $id; } } function id_exists($id) { if(!$id) { return false; } $sql = ' SELECT id FROM `files` WHERE `id` = ? LIMIT 1'; $query = $this->db->query($sql, array($id)); if ($query->num_rows() == 1) { return true; } else { return false; } } function get_filedata($id) { $sql = ' SELECT hash,filename FROM `files` WHERE `id` = ? LIMIT 1'; $query = $this->db->query($sql, array($id)); if ($query->num_rows() == 1) { $return = $query->result_array(); return $return[0]; } else { return false; } } function folder($hash) { return $this->config->item('upload_path').'/'.substr($hash, 0, 3); } function file($hash) { return $this->folder($hash).'/'.$hash; } function hash_password($password) { return sha1($this->config->item('passwordsalt').$password); } function get_password() { $password = $this->input->post('password'); if ($password !== false) { return $this->hash_password($password); } elseif (isset($_SERVER['PHP_AUTH_PW']) && $_SERVER['PHP_AUTH_PW'] != '') { return $this->hash_password($_SERVER['PHP_AUTH_PW']); } return 'NULL'; } function add_file($hash, $id, $filename) { $query = $this->db->query(' INSERT INTO `files` (`hash`, `id`, `filename`, `password`, `date`) VALUES (?, ?, ?, ?, ?)', array($hash, $id, $filename, $this->get_password(), time())); } function show_url($id, $mode) { $data = array(); if ($mode) { $data['url'] = site_url($id).'/'.$mode; } else { $data['url'] = site_url($id).'/'; } if ($this->var->cli_client) { echo $data['url']."\n"; } else { $this->load->view('file/header', $data); $this->load->view('file/show_url', $data); $this->load->view('file/footer', $data); } } function download() { $data = array(); $id = $this->uri->segment(1); $mode = $this->uri->segment(2); $filedata = $this->get_filedata($id); $file = $this->file($filedata['hash']); if ($this->id_exists($id) && file_exists($file)) { // MODIFIED SINCE SUPPORT -- START // helps to keep traffic low when reloading an image // TODO: check for bugs, find source of code again $filedate = filectime($file); $etag = strtolower(md5_file($file)); $modified = true; if(isset($_SERVER['HTTP_IF_NONE_MATCH'])) { $oldtag = trim(strtolower($_SERVER['HTTP_IF_NONE_MATCH']), '"'); if($oldtag == $etag) { $modified = false; } else { $modified = true; } } if(isset($_SERVER['HTTP_IF_MODIFIED_SINCE'])) { $olddate = date_parse(trim(strtolower($_SERVER['HTTP_IF_MODIFIED_SINCE']))); $olddate = gmmktime($olddate['hour'], $olddate['minute'], $olddate['second'], $olddate['month'], $olddate['day'], $olddate['year']); if($olddate >= $filedate) { $modified = false; } else { $modified = true; } } // MODIFIED SINCE SUPPORT -- END $type = exec(FCPATH.'scripts/mimetype -b --orig-name '.escapeshellarg($filedata['filename']).' '.escapeshellarg($file)); if (!$mode && substr_count(ltrim($this->uri->uri_string(), "/"), '/') >= 1) { $mode = $this->mime2extension($type); } if (!$modified) { header("HTTP/1.1 304 Not Modified"); header('Etag: "'.$etag.'"'); } else { if ($mode && $mode != 'plain' && $mode != 'qr' && $this->mime2extension($type) && filesize($file) <= $this->config->item('upload_max_text_size') ) { $data['title'] = $filedata['filename']; $data['raw_link'] = site_url($id); $data['plain_link'] = site_url($id.'/plain'); $data['auto_link'] = site_url($id).'/'; $data['rmd_link'] = site_url($id.'/rmd'); header("Content-Type: text/html\n"); if ($mode) { $data['current_highlight'] = $mode; } else { $data['current_highlight'] = $this->mime2extension($type); } echo $this->load->view('file/html_header', $data, true); if ($mode == "rmd") { $this->load->library("MemcacheLibrary"); if (! $cached = $this->memcachelibrary->get($filedata['hash'].'_'.$mode)) { ob_start(); echo ''."\n"; passthru('/usr/bin/perl /usr/bin/perlbin/vendor/Markdown.pl '.escapeshellarg($file)); $cached = ob_get_contents(); ob_end_clean(); $this->memcachelibrary->set($filedata['hash'].'_'.$mode, $cached, 100); } echo $cached; } else { echo '
';
            // only rewrite if it's fast
            // count(file($file)); isn't
            passthru('/usr/bin/perl -ne \'print "$.\n"\' '.escapeshellarg($file));
            echo '
'."\n";
            if ($mode == 'txt') {
              $fp = fopen($file,"r");
              while (!feof($fp)) {
                echo fread($fp,4096);
              }
              fclose($fp);
            } else {
              $this->load->library("MemcacheLibrary");
              if (! $cached = $this->memcachelibrary->get($filedata['hash'].'_'.$mode)) {
                ob_start();
                passthru('/usr/bin/pygmentize -l '.$mode.' -f html '.escapeshellarg($file));
                $cached = ob_get_contents();
                ob_end_clean();
                $this->memcachelibrary->set($filedata['hash'].'_'.$mode, $cached, 100);
              }
              echo $cached;
            }
            echo '
'; } echo $this->load->view('file/html_footer', $data, true); } else { if ($mode == 'plain') { header("Content-Type: text/plain\n"); } elseif ($mode == "qr") { header("Content-disposition: inline; filename=\"qr.png\"\n"); header("Content-Type: image/png\n"); passthru('/usr/bin/qrencode -s 10 -o - '.escapeshellarg(site_url($id).'/')); exit(); } else { header("Content-Type: ".$type."\n"); } header("Content-disposition: inline; filename=\"".$filedata['filename']."\"\n"); header("Content-Length: ".filesize($file)."\n"); header("Last-Modified: ".date('D, d M Y H:i:s', $filedate)." GMT"); header('Etag: "'.$etag.'"'); $fp = fopen($file,"r"); while (!feof($fp)) { echo fread($fp,4096); } fclose($fp); } } exit(); } else { $this->load->view('file/header', $data); $this->load->view('file/non_existant'); $this->load->view('file/footer'); } } private function unused_file($hash) { $sql = ' SELECT id FROM `files` WHERE `hash` = ? LIMIT 1'; $query = $this->db->query($sql, array($hash)); if ($query->num_rows() == 0) { return true; } else { return false; } } function delete_id($id, $password) { $filedata = $this->get_filedata($id); $password = $this->get_password(); if ($password == "NULL") { return false; } if(!$this->id_exists($id)) { return false; } $sql = ' DELETE FROM `files` WHERE `id` = ? AND password = ? LIMIT 1'; $this->db->query($sql, array($id, $password)); if($this->id_exists($id)) { return false; } if($this->unused_file($filedata['hash'])) { unlink($this->file($filedata['hash'])); @rmdir($this->folder($filedata['hash'])); } return true; } private function random_id($min_length, $max_length) { $random = ''; $char_list = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; $char_list .= "abcdefghijklmnopqrstuvwxyz"; $char_list .= "1234567890"; for($i = 0; $i < $max_length; $i++) { if (strlen($random) >= $min_length) { if (rand()%2 == 1) { break; } } $random .= substr($char_list,(rand()%(strlen($char_list))), 1); } return $random; } function mime2extension($type) { $typearray = array( 'text/plain' => 'txt', 'text/x-python' => 'py', 'text/x-csrc' => 'c', 'text/x-chdr' => 'h', 'text/x-c++hdr' => 'h', 'text/x-c++src' => 'cpp', 'text/x-patch' => 'diff', 'text/x-lua' => 'lua', 'text/x-java' => 'java', 'text/x-haskell' => 'hs', 'text/x-literate-haskell' => 'hs', 'text/x-subviewer' => 'sh', #'text/x-makefile' => 'make', #'text/x-log' => 'log', 'text/html' => 'html', 'text/css' => 'css', 'message/rfc822' => 'txt', #'image/svg+xml' => 'xml', 'application/x-perl' => 'pl', 'application/xml' => 'xml', 'application/javascript' => 'js', 'application/x-desktop' => 'txt', 'application/x-m4' => 'txt', 'application/x-awk' => 'awk', 'application/x-java' => 'java', 'application/x-php' => 'php', 'application/x-ruby' => 'rb', 'application/x-shellscript' => 'sh', 'application/x-x509-ca-cert' => 'txt', 'application/mbox' => 'txt' ); if (array_key_exists($type, $typearray)) return $typearray[$type]; if (strpos($type, 'text/') === 0) return 'txt'; # default return false; } } # vim: set ts=2 sw=2 et: /* End of file file_mod.php */ /* Location: ./system/application/models/file_mod.php */