420 lines
15 KiB
PHP
420 lines
15 KiB
PHP
<?php
|
|
/**
|
|
* StatusNet, the distributed open-source microblogging tool
|
|
*
|
|
* Abstraction for media files in general
|
|
*
|
|
* TODO: combine with ImageFile?
|
|
*
|
|
* PHP version 5
|
|
*
|
|
* LICENCE: 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/>.
|
|
*
|
|
* @category Media
|
|
* @package StatusNet
|
|
* @author Robin Millette <robin@millette.info>
|
|
* @author Zach Copley <zach@status.net>
|
|
* @copyright 2008-2009 StatusNet, Inc.
|
|
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
|
|
* @link http://status.net/
|
|
*/
|
|
|
|
if (!defined('STATUSNET') && !defined('LACONICA')) {
|
|
exit(1);
|
|
}
|
|
|
|
class MediaFile
|
|
{
|
|
|
|
var $filename = null;
|
|
var $fileRecord = null;
|
|
var $user = null;
|
|
var $fileurl = null;
|
|
var $short_fileurl = null;
|
|
var $mimetype = null;
|
|
|
|
function __construct($user = null, $filename = null, $mimetype = null)
|
|
{
|
|
if ($user == null) {
|
|
$this->user = common_current_user();
|
|
} else {
|
|
$this->user = $user;
|
|
}
|
|
|
|
$this->filename = $filename;
|
|
$this->mimetype = $mimetype;
|
|
$this->fileRecord = $this->storeFile();
|
|
$this->thumbnailRecord = $this->storeThumbnail();
|
|
|
|
$this->fileurl = common_local_url('attachment',
|
|
array('attachment' => $this->fileRecord->id));
|
|
|
|
$this->maybeAddRedir($this->fileRecord->id, $this->fileurl);
|
|
$this->short_fileurl = common_shorten_url($this->fileurl);
|
|
$this->maybeAddRedir($this->fileRecord->id, $this->short_fileurl);
|
|
}
|
|
|
|
function attachToNotice($notice)
|
|
{
|
|
File_to_post::processNew($this->fileRecord->id, $notice->id);
|
|
$this->maybeAddRedir($this->fileRecord->id,
|
|
common_local_url('file', array('notice' => $notice->id)));
|
|
}
|
|
|
|
function shortUrl()
|
|
{
|
|
return $this->short_fileurl;
|
|
}
|
|
|
|
function delete()
|
|
{
|
|
$filepath = File::path($this->filename);
|
|
@unlink($filepath);
|
|
}
|
|
|
|
function storeFile() {
|
|
|
|
$file = new File;
|
|
|
|
$file->filename = $this->filename;
|
|
$file->url = File::url($this->filename);
|
|
$filepath = File::path($this->filename);
|
|
$file->size = filesize($filepath);
|
|
$file->date = time();
|
|
$file->mimetype = $this->mimetype;
|
|
|
|
$file_id = $file->insert();
|
|
|
|
if (!$file_id) {
|
|
common_log_db_error($file, "INSERT", __FILE__);
|
|
// TRANS: Client exception thrown when a database error was thrown during a file upload operation.
|
|
throw new ClientException(_('There was a database error while saving your file. Please try again.'));
|
|
}
|
|
|
|
return $file;
|
|
}
|
|
|
|
/**
|
|
* Generate and store a thumbnail image for the uploaded file, if applicable.
|
|
*
|
|
* @return File_thumbnail or null
|
|
*/
|
|
function storeThumbnail()
|
|
{
|
|
if (substr($this->mimetype, 0, strlen('image/')) != 'image/') {
|
|
// @fixme video thumbs would be nice!
|
|
return null;
|
|
}
|
|
try {
|
|
$image = new ImageFile($this->fileRecord->id,
|
|
File::path($this->filename));
|
|
} catch (Exception $e) {
|
|
// Unsupported image type.
|
|
return null;
|
|
}
|
|
|
|
$outname = File::filename($this->user->getProfile(), 'thumb-' . $this->filename, $this->mimetype);
|
|
$outpath = File::path($outname);
|
|
|
|
$maxWidth = common_config('attachments', 'thumb_width');
|
|
$maxHeight = common_config('attachments', 'thumb_height');
|
|
list($width, $height) = $this->scaleToFit($image->width, $image->height, $maxWidth, $maxHeight);
|
|
|
|
$image->resizeTo($outpath, $width, $height);
|
|
File_thumbnail::saveThumbnail($this->fileRecord->id,
|
|
File::url($outname),
|
|
$width,
|
|
$height);
|
|
}
|
|
|
|
function scaleToFit($width, $height, $maxWidth, $maxHeight)
|
|
{
|
|
$aspect = $maxWidth / $maxHeight;
|
|
$w1 = $maxWidth;
|
|
$h1 = intval($height * $maxWidth / $width);
|
|
if ($h1 > $maxHeight) {
|
|
$w2 = intval($width * $maxHeight / $height);
|
|
$h2 = $maxHeight;
|
|
return array($w2, $h2);
|
|
}
|
|
return array($w1, $h1);
|
|
}
|
|
|
|
function rememberFile($file, $short)
|
|
{
|
|
$this->maybeAddRedir($file->id, $short);
|
|
}
|
|
|
|
function maybeAddRedir($file_id, $url)
|
|
{
|
|
$file_redir = File_redirection::staticGet('url', $url);
|
|
|
|
if (empty($file_redir)) {
|
|
|
|
$file_redir = new File_redirection;
|
|
$file_redir->url = $url;
|
|
$file_redir->file_id = $file_id;
|
|
|
|
$result = $file_redir->insert();
|
|
|
|
if (!$result) {
|
|
common_log_db_error($file_redir, "INSERT", __FILE__);
|
|
// TRANS: Client exception thrown when a database error was thrown during a file upload operation.
|
|
throw new ClientException(_('There was a database error while saving your file. Please try again.'));
|
|
}
|
|
}
|
|
}
|
|
|
|
static function fromUpload($param = 'media', $user = null)
|
|
{
|
|
if (empty($user)) {
|
|
$user = common_current_user();
|
|
}
|
|
|
|
if (!isset($_FILES[$param]['error'])){
|
|
return;
|
|
}
|
|
|
|
switch ($_FILES[$param]['error']) {
|
|
case UPLOAD_ERR_OK: // success, jump out
|
|
break;
|
|
case UPLOAD_ERR_INI_SIZE:
|
|
// TRANS: Client exception thrown when an uploaded file is larger than set in php.ini.
|
|
throw new ClientException(_('The uploaded file exceeds the ' .
|
|
'upload_max_filesize directive in php.ini.'));
|
|
return;
|
|
case UPLOAD_ERR_FORM_SIZE:
|
|
throw new ClientException(
|
|
// TRANS: Client exception.
|
|
_('The uploaded file exceeds the MAX_FILE_SIZE directive' .
|
|
' that was specified in the HTML form.'));
|
|
return;
|
|
case UPLOAD_ERR_PARTIAL:
|
|
@unlink($_FILES[$param]['tmp_name']);
|
|
// TRANS: Client exception.
|
|
throw new ClientException(_('The uploaded file was only' .
|
|
' partially uploaded.'));
|
|
return;
|
|
case UPLOAD_ERR_NO_FILE:
|
|
// No file; probably just a non-AJAX submission.
|
|
return;
|
|
case UPLOAD_ERR_NO_TMP_DIR:
|
|
// TRANS: Client exception thrown when a temporary folder is not present to store a file upload.
|
|
throw new ClientException(_('Missing a temporary folder.'));
|
|
return;
|
|
case UPLOAD_ERR_CANT_WRITE:
|
|
// TRANS: Client exception thrown when writing to disk is not possible during a file upload operation.
|
|
throw new ClientException(_('Failed to write file to disk.'));
|
|
return;
|
|
case UPLOAD_ERR_EXTENSION:
|
|
// TRANS: Client exception thrown when a file upload operation has been stopped by an extension.
|
|
throw new ClientException(_('File upload stopped by extension.'));
|
|
return;
|
|
default:
|
|
common_log(LOG_ERR, __METHOD__ . ": Unknown upload error " .
|
|
$_FILES[$param]['error']);
|
|
// TRANS: Client exception thrown when a file upload operation has failed with an unknown reason.
|
|
throw new ClientException(_('System error uploading file.'));
|
|
return;
|
|
}
|
|
|
|
if (!MediaFile::respectsQuota($user, $_FILES[$param]['size'])) {
|
|
|
|
// Should never actually get here
|
|
|
|
@unlink($_FILES[$param]['tmp_name']);
|
|
// TRANS: Client exception thrown when a file upload operation would cause a user to exceed a set quota.
|
|
throw new ClientException(_('File exceeds user\'s quota.'));
|
|
return;
|
|
}
|
|
|
|
$mimetype = MediaFile::getUploadedFileType($_FILES[$param]['tmp_name'],
|
|
$_FILES[$param]['name']);
|
|
|
|
$filename = null;
|
|
|
|
if (isset($mimetype)) {
|
|
|
|
$basename = basename($_FILES[$param]['name']);
|
|
$filename = File::filename($user->getProfile(), $basename, $mimetype);
|
|
$filepath = File::path($filename);
|
|
|
|
$result = move_uploaded_file($_FILES[$param]['tmp_name'], $filepath);
|
|
|
|
if (!$result) {
|
|
// TRANS: Client exception thrown when a file upload operation fails because the file could
|
|
// TRANS: not be moved from the temporary folder to the permanent file location.
|
|
throw new ClientException(_('File could not be moved to destination directory.'));
|
|
return;
|
|
}
|
|
|
|
} else {
|
|
// TRANS: Client exception thrown when a file upload operation has been stopped because the MIME
|
|
// TRANS: type of the uploaded file could not be determined.
|
|
throw new ClientException(_('Could not determine file\'s MIME type.'));
|
|
return;
|
|
}
|
|
|
|
return new MediaFile($user, $filename, $mimetype);
|
|
}
|
|
|
|
static function fromFilehandle($fh, $user) {
|
|
|
|
$stream = stream_get_meta_data($fh);
|
|
|
|
if (!MediaFile::respectsQuota($user, filesize($stream['uri']))) {
|
|
|
|
// Should never actually get here
|
|
|
|
// TRANS: Client exception thrown when a file upload operation would cause a user to exceed a set quota.
|
|
throw new ClientException(_('File exceeds user\'s quota.'));
|
|
return;
|
|
}
|
|
|
|
$mimetype = MediaFile::getUploadedFileType($fh);
|
|
|
|
$filename = null;
|
|
|
|
if (isset($mimetype)) {
|
|
|
|
$filename = File::filename($user->getProfile(), "email", $mimetype);
|
|
|
|
$filepath = File::path($filename);
|
|
|
|
$result = copy($stream['uri'], $filepath) && chmod($filepath, 0664);
|
|
|
|
if (!$result) {
|
|
// TRANS: Client exception thrown when a file upload operation fails because the file could
|
|
// TRANS: not be moved from the temporary folder to the permanent file location.
|
|
throw new ClientException(_('File could not be moved to destination directory.' .
|
|
$stream['uri'] . ' ' . $filepath));
|
|
}
|
|
} else {
|
|
// TRANS: Client exception thrown when a file upload operation has been stopped because the MIME
|
|
// TRANS: type of the uploaded file could not be determined.
|
|
throw new ClientException(_('Could not determine file\'s MIME type.'));
|
|
return;
|
|
}
|
|
|
|
return new MediaFile($user, $filename, $mimetype);
|
|
}
|
|
|
|
/**
|
|
* Attempt to identify the content type of a given file.
|
|
*
|
|
* @param mixed $f file handle resource, or filesystem path as string
|
|
* @param string $originalFilename (optional) for extension-based detection
|
|
* @return string
|
|
*
|
|
* @fixme is this an internal or public method? It's called from GetFileAction
|
|
* @fixme this seems to tie a front-end error message in, kinda confusing
|
|
* @fixme this looks like it could return a PEAR_Error in some cases, if
|
|
* type can't be identified and $config['attachments']['supported'] is true
|
|
*
|
|
* @throws ClientException if type is known, but not supported for local uploads
|
|
*/
|
|
static function getUploadedFileType($f, $originalFilename=false) {
|
|
require_once 'MIME/Type.php';
|
|
require_once 'MIME/Type/Extension.php';
|
|
|
|
// We have to disable auto handling of PEAR errors
|
|
PEAR::staticPushErrorHandling(PEAR_ERROR_RETURN);
|
|
$mte = new MIME_Type_Extension();
|
|
|
|
$cmd = &PEAR::getStaticProperty('MIME_Type', 'fileCmd');
|
|
$cmd = common_config('attachments', 'filecommand');
|
|
|
|
$filetype = null;
|
|
|
|
// If we couldn't get a clear type from the file extension,
|
|
// we'll go ahead and try checking the content. Content checks
|
|
// are unambiguous for most image files, but nearly useless
|
|
// for office document formats.
|
|
|
|
if (is_string($f)) {
|
|
|
|
// assuming a filename
|
|
|
|
$filetype = MIME_Type::autoDetect($f);
|
|
|
|
} else {
|
|
|
|
// assuming a filehandle
|
|
|
|
$stream = stream_get_meta_data($f);
|
|
$filetype = MIME_Type::autoDetect($stream['uri']);
|
|
}
|
|
|
|
// The content-based sources for MIME_Type::autoDetect()
|
|
// are wildly unreliable for office-type documents. If we've
|
|
// gotten an unclear reponse back or just couldn't identify it,
|
|
// we'll try detecting a type from its extension...
|
|
$unclearTypes = array('application/octet-stream',
|
|
'application/vnd.ms-office',
|
|
'application/zip',
|
|
// TODO: for XML we could do better content-based sniffing too
|
|
'text/xml');
|
|
|
|
if ($originalFilename && (!$filetype || in_array($filetype, $unclearTypes))) {
|
|
$type = $mte->getMIMEType($originalFilename);
|
|
if (is_string($type)) {
|
|
$filetype = $type;
|
|
}
|
|
}
|
|
|
|
$supported = common_config('attachments', 'supported');
|
|
if (is_array($supported)) {
|
|
// Normalize extensions to mime types
|
|
foreach ($supported as $i => $entry) {
|
|
if (strpos($entry, '/') === false) {
|
|
common_log(LOG_INFO, "sample.$entry");
|
|
$supported[$i] = $mte->getMIMEType("sample.$entry");
|
|
}
|
|
}
|
|
}
|
|
if ($supported === true || in_array($filetype, $supported)) {
|
|
// Restore PEAR error handlers for our DB code...
|
|
PEAR::staticPopErrorHandling();
|
|
return $filetype;
|
|
}
|
|
$media = MIME_Type::getMedia($filetype);
|
|
if ('application' !== $media) {
|
|
// TRANS: Client exception thrown trying to upload a forbidden MIME type.
|
|
// TRANS: %1$s is the file type that was denied, %2$s is the application part of
|
|
// TRANS: the MIME type that was denied.
|
|
$hint = sprintf(_('"%1$s" is not a supported file type on this server. ' .
|
|
'Try using another %2$s format.'), $filetype, $media);
|
|
} else {
|
|
// TRANS: Client exception thrown trying to upload a forbidden MIME type.
|
|
// TRANS: %s is the file type that was denied.
|
|
$hint = sprintf(_('"%s" is not a supported file type on this server.'), $filetype);
|
|
}
|
|
// Restore PEAR error handlers for our DB code...
|
|
PEAR::staticPopErrorHandling();
|
|
throw new ClientException($hint);
|
|
}
|
|
|
|
static function respectsQuota($user, $filesize)
|
|
{
|
|
$file = new File;
|
|
$result = $file->isRespectsQuota($user, $filesize);
|
|
if ($result === true) {
|
|
return true;
|
|
} else {
|
|
throw new ClientException($result);
|
|
}
|
|
}
|
|
|
|
}
|