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common.php
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common.php
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<?php
/*
+--------------------------------------------------------------------------+
| This file is part of the Kolab File API |
| |
| Copyright (C) 2012-2014, Kolab Systems AG |
| |
| This program is free software: you can redistribute it and/or modify |
| it under the terms of the GNU Affero General Public License as published |
| by the Free Software Foundation, either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU Affero General Public License for more details. |
| |
| You should have received a copy of the GNU Affero General Public License |
| along with this program. If not, see <http://www.gnu.org/licenses/> |
+--------------------------------------------------------------------------+
| Author: Aleksander Machniak <machniak@kolabsys.com> |
+--------------------------------------------------------------------------+
*/
class file_api_common
{
protected $api;
protected $rc;
protected $args = array();
public function __construct($api, $args = array())
{
$this->rc = rcube::get_instance();
$this->api = $api;
$this->args = (array) $args;
}
/**
* Request handler
*/
public function handle()
{
// GET arguments
if (!empty($_GET)) {
foreach (array_keys($_GET) as $key) {
$this->args[$key] = &$_GET[$key];
}
}
// POST arguments (JSON)
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
$post = file_get_contents('php://input');
$this->args += (array) json_decode($post, true);
unset($post);
}
// disable script execution time limit, so we can handle big files
@set_time_limit(360);
}
/**
* File uploads handler
*/
protected function upload()
{
$files = array();
if (is_array($_FILES['file']['tmp_name'])) {
foreach ($_FILES['file']['tmp_name'] as $i => $filepath) {
if ($err = $_FILES['file']['error'][$i]) {
if ($err == UPLOAD_ERR_INI_SIZE || $err == UPLOAD_ERR_FORM_SIZE) {
$maxsize = ini_get('upload_max_filesize');
$maxsize = $this->show_bytes(parse_bytes($maxsize));
throw new Exception("Maximum file size ($maxsize) exceeded", file_api_core::ERROR_CODE);
}
throw new Exception("File upload failed", file_api_core::ERROR_CODE);
}
$files[] = array(
'path' => $filepath,
'name' => $_FILES['file']['name'][$i],
'size' => filesize($filepath),
'type' => rcube_mime::file_content_type($filepath, $_FILES['file']['name'][$i], $_FILES['file']['type']),
);
}
}
else if ($_SERVER['REQUEST_METHOD'] == 'POST') {
// if filesize exceeds post_max_size then $_FILES array is empty,
if ($maxsize = ini_get('post_max_size')) {
$maxsize = $this->show_bytes(parse_bytes($maxsize));
throw new Exception("Maximum file size ($maxsize) exceeded", file_api_core::ERROR_CODE);
}
throw new Exception("File upload failed", file_api_core::ERROR_CODE);
}
return $files;
}
/**
* Return built-in viewer opbject for specified mimetype
*
* @return object Viewer object
*/
protected function find_viewer($mimetype)
{
$dir = RCUBE_INSTALL_PATH . 'lib/viewers';
$files = array();
// First get viewers and sort by name to get priority
if ($handle = opendir($dir)) {
while (false !== ($file = readdir($handle))) {
if (preg_match('/^([a-z0-9_]+)\.php$/i', $file, $matches)) {
$files[$matches[1]] = $dir . '/' . $file;
}
}
closedir($handle);
}
ksort($files);
foreach ($files as $name => $file) {
include_once $file;
$class = 'file_viewer_' . $name;
$viewer = new $class($this->api);
if ($viewer->supports($mimetype)) {
return $viewer;
}
}
}
/**
* Parse driver metadata information
*/
protected function parse_metadata($metadata, $default = false)
{
if ($default) {
unset($metadata['form']);
$metadata['name'] .= ' (' . $this->api->translate('localstorage') . ')';
}
// localize form labels
foreach ($metadata['form'] as $key => $val) {
$label = $this->api->translate('form.' . $val);
if (strpos($label, 'form.') !== 0) {
$metadata['form'][$key] = $label;
}
}
return $metadata;
}
/**
* Get folder rights
*/
protected function folder_rights($folder)
{
list($driver, $path) = $this->api->get_driver($folder);
$rights = $driver->folder_rights($path);
$result = array();
$map = array(
file_storage::ACL_READ => 'read',
file_storage::ACL_WRITE => 'write',
);
foreach ($map as $key => $value) {
if ($rights & $key) {
$result[] = $value;
}
}
return $result;
}
/**
* Update document session on file/folder move
*/
protected function session_uri_update($from, $to, $is_folder = false)
{
// check Manticore/WOPI support. Note: we don't use config->get('fileapi_manticore')
// here as it may be not properly set if backend driver wasn't initialized yet
$capabilities = $this->api->capabilities(false);
if (!empty($capabilities['WOPI'])) {
$document = new file_wopi($this->api);
}
else if (!empty($capabilities['MANTICORE'])) {
$document = new file_manticore($this->api);
}
if (!empty($document)) {
$document->session_uri_update($from, $to, $is_folder);
}
}
}

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