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[Media] Copy media subsystem from v2 and roughly structure it for v3

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This commit is contained in:
Hugo Sales
2021-04-11 20:53:23 +00:00
parent a38ee03f18
commit fe478c6104
14 changed files with 422 additions and 295 deletions
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6
plugins/Directory/Directory.php
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@@ -28,11 +28,7 @@ use App\Core\Router\RouteLoader;
class Directory extends Module
{
/**
* Map URLs to actions
*
* @param RouteLoader $r
*
* @return bool hook value; true means continue processing, false means stop.
* Map URLs to Controllers
*/
public function onAddRoute(RouteLoader $r)
{

227
plugins/Media/Controller/Attachment.php Normal file
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@@ -0,0 +1,227 @@
<?php
// {{{ License
// This file is part of GNU social - https://www.gnu.org/software/social
//
// GNU social 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.
//
// GNU social 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 GNU social. If not, see <http://www.gnu.org/licenses/>.
// }}}
namespace Plugin\Media\Controller;
use App\Core\Controller;
use Symfony\Component\HttpFoundation\Request;
/**
* Show note attachments
*
* @author Evan Prodromou <evan@status.net>
* @author Hugo Sales <hugo@hsal.es>
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
*
* @see http://status.net/
*/
class Attachment extends Controller
{
public function handle(Request $request)
{
return [
'_template' => 'doc/tos.html.twig',
];
}
/**
* Attachment File object to show
*/
public $attachment;
public $filehash;
public $filepath;
public $filesize;
public $mimetype;
public $filename;
/**
* Load attributes based on database arguments
*
* Loads all the DB stuff
*
* @param array $args $_REQUEST array
*
* @throws ClientException
* @throws FileNotFoundException
* @throws FileNotStoredLocallyException
* @throws InvalidFilenameException
* @throws ServerException
*
* @return bool flag
*/
protected function prepare(array $args = [])
{
// parent::prepare($args);
try {
if (!empty($id = $this->trimmed('attachment'))) {
$this->attachment = File::getByID((int) $id);
} elseif (!empty($this->filehash = $this->trimmed('filehash'))) {
$file = File::getByHash($this->filehash);
$file->fetch();
$this->attachment = $file;
}
} catch (Exception $e) {
// Not found
}
if (!$this->attachment instanceof File) {
// TRANS: Client error displayed trying to get a non-existing attachment.
$this->clientError(_m('No such attachment.'), 404);
}
$this->filesize = $this->attachment->size;
$this->mimetype = $this->attachment->mimetype;
$this->filename = $this->attachment->filename;
if ($this->attachment->isLocal() || $this->attachment->isFetchedRemoteFile()) {
$this->filesize = $this->attachment->getFileOrThumbnailSize();
$this->mimetype = $this->attachment->getFileOrThumbnailMimetype();
$this->filename = MediaFile::getDisplayName($this->attachment);
}
return true;
}
/**
* Is this action read-only?
*
* @param mixed $args
*
* @return bool true
*/
public function isReadOnly($args): bool
{
return true;
}
/**
* Title of the page
*
* @return string title of the page
*/
public function title(): string
{
$a = new self($this->attachment);
return $a->title();
}
public function showPage(): void
{
if (empty($this->filepath)) {
// if it's not a local file, gtfo
common_redirect($this->attachment->getUrl(), 303);
}
// parent::showPage();
}
/**
* Fill the content area of the page
*
* Shows a single notice list item.
*
* @return void
*/
public function showContent(): void
{
$ali = new self($this->attachment, $this);
$ali->show();
}
/**
* Don't show page notice
*
* @return void
*/
public function showPageNoticeBlock(): void
{
}
/**
* Show aside: this attachments appears in what notices
*
* @return void
*/
public function showSections(): void
{
$ns = new AttachmentNoticeSection($this);
$ns->show();
}
/**
* Last-modified date for file
*
* @throws ServerException
*
* @return int last-modified date as unix timestamp
*/
public function lastModified(): ?int
{
if (common_config('site', 'use_x_sendfile')) {
return null;
}
$path = $this->filepath;
if (!empty($path)) {
return filemtime($path);
} else {
return null;
}
}
/**
* etag header for file
*
* This returns the same data (inode, size, mtime) as Apache would,
* but in decimal instead of hex.
*
* @throws ServerException
*
* @return string etag http header
*/
public function etag(): ?string
{
if (common_config('site', 'use_x_sendfile')) {
return null;
}
$path = $this->filepath;
$cache = Cache::instance();
if ($cache) {
if (empty($path)) {
return null;
}
$key = Cache::key('attachments:etag:' . $path);
$etag = $cache->get($key);
if ($etag === false) {
$etag = crc32(file_get_contents($path));
$cache->set($key, $etag);
}
return $etag;
}
if (!empty($path)) {
$stat = stat($path);
return '"' . $stat['ino'] . '-' . $stat['size'] . '-' . $stat['mtime'] . '"';
} else {
return null;
}
}
}

58
plugins/Media/Controller/AttachmentDownload.php Normal file
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@@ -0,0 +1,58 @@
<?php
// This file is part of GNU social - https://www.gnu.org/software/social
//
// GNU social 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.
//
// GNU social 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 GNU social. If not, see <http://www.gnu.org/licenses/>.
namespace Plugin\Media\Controller;
/**
* Download notice attachment
*
* @category Personal
* @package GNUsocial
*
* @author Mikael Nordfeldth <mmn@hethane.se>
* @license https://www.gnu.org/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
*
* @see https:/gnu.io/social
*/
class AttachmentDownload extends Attachment
{
public function showPage(): void
{
// Disable errors, to not mess with the file contents (suppress errors in case access to this
// function is blocked, like in some shared hosts). Automatically reset at the end of the
// script execution, and we don't want to have any more errors until then, so don't reset it
@ini_set('display_errors', 0);
if ($this->attachment->isLocal()) {
try {
$this->filepath = $this->attachment->getFileOrThumbnailPath();
} catch (Exception $e) {
$this->clientError(
_m('Requested local URL for a file that is not stored locally.'),
404
);
}
common_send_file(
$this->filepath,
$this->mimetype,
$this->filename,
'attachment'
);
} else {
common_redirect($this->attachment->getUrl(), 303);
}
}
}

79
plugins/Media/Controller/AttachmentThumbnail.php Normal file
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@@ -0,0 +1,79 @@
<?php
// This file is part of GNU social - https://www.gnu.org/software/social
//
// GNU social 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.
//
// GNU social 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 GNU social. If not, see <http://www.gnu.org/licenses/>.
namespace Plugin\Media\Controller;
/**
* Show notice attachments
*
* @category Personal
* @package GNUsocial
* @author Evan Prodromou <evan@status.net>
* @copyright 2008-2009 StatusNet, Inc.
* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
*/
class Attachment_thumbnailAction extends Attachment_viewAction
{
protected $thumb_w; // max width
protected $thumb_h; // max height
protected $thumb_c; // crop?
protected function doPreparation()
{
parent::doPreparation();
$this->thumb_w = $this->int('w');
$this->thumb_h = $this->int('h');
$this->thumb_c = $this->boolean('c');
}
/**
* Show an inline representation of an attachment of the size
* requested in the GET variables (read in the constructor). Tries
* to send the most appropriate file with the correct size and
* headers or displays an error if it's not possible.
*
* @throws ClientException
* @throws ReflectionException
* @throws ServerException
*/
public function showPage(): void
{
// Returns a File_thumbnail object or throws exception if not available
$filename = $this->filename;
$filepath = $this->filepath;
try {
$thumbnail = $this->attachment->getThumbnail($this->thumb_w, $this->thumb_h, $this->thumb_c);
$file = $thumbnail->getFile();
} catch (UseFileAsThumbnailException $e) {
// With this exception, the file exists locally $e->file;
} catch (FileNotFoundException $e) {
$this->clientError(_m('No such attachment'), 404);
} catch (Exception $e) {
if (is_null($filepath)) {
$this->clientError(_m('No such thumbnail'), 404);
}
// Remote file
}
// Disable errors, to not mess with the file contents (suppress errors in case access to this
// function is blocked, like in some shared hosts). Automatically reset at the end of the
// script execution, and we don't want to have any more errors until then, so don't reset it
@ini_set('display_errors', 0);
common_send_file($filepath, image_type_to_mime_type(IMAGETYPE_WEBP), $filename, 'inline');
}
}

54
plugins/Media/Controller/AttachmentView.php Normal file
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@@ -0,0 +1,54 @@
<?php
// This file is part of GNU social - https://www.gnu.org/software/social
//
// GNU social 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.
//
// GNU social 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 GNU social. If not, see <http://www.gnu.org/licenses/>.
namespace Plugin\Media\Controller;
/**
* View notice attachment
*
* @package GNUsocial
*
* @author Miguel Dantas <biodantasgs@gmail.com>
* @license https://www.gnu.org/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
*/
class AttachmentView extends Attachment
{
public function showPage(): void
{
// Disable errors, to not mess with the file contents (suppress errors in case access to this
// function is blocked, like in some shared hosts). Automatically reset at the end of the
// script execution, and we don't want to have any more errors until then, so don't reset it
@ini_set('display_errors', 0);
if ($this->attachment->isLocal() || $this->attachment->isFetchedRemoteFile()) {
try {
$this->filepath = $this->attachment->getFileOrThumbnailPath();
} catch (Exception $e) {
$this->clientError(
_m('Requested local URL for a file that is not stored locally.'),
404
);
}
$disposition = 'attachment';
if (in_array(common_get_mime_media($this->mimetype), ['image', 'video'])) {
$disposition = 'inline';
}
common_send_file($this->filepath, $this->mimetype, $this->filename, $disposition);
} else {
common_redirect($this->attachment->getUrl(), 303);
}
}
}

48
plugins/Media/Media.php Normal file
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@@ -0,0 +1,48 @@
<?php
// {{{ License
// This file is part of GNU social - https://www.gnu.org/software/social
//
// GNU social 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.
//
// GNU social 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 GNU social. If not, see <http://www.gnu.org/licenses/>.
// }}}
namespace Plugin\Media;
use App\Core\Event;
use App\Core\Module;
use App\Core\Router\RouteLoader;
class Media extends Module
{
/**
* Map URLs to Controllers
*/
public function onAddRoute(RouteLoader $r)
{
// foreach (['' => 'attachment',
// '/view' => 'attachment_view',
// '/download' => 'attachment_download',
// '/thumbnail' => 'attachment_thumbnail'] as $postfix => $action) {
// foreach (['filehash' => '[A-Za-z0-9._-]{64}',
// 'attachment' => '[0-9]+'] as $type => $match) {
// $r->connect($action, "attachment/:{$type}{$postfix}",
// ['action' => $action],
// [$type => $match]);
// }
// }
$r->connect('attachment', '/attachment/{filehash<[A-Za-z0-9._-]{64}>}', Controller\Attachment::class);
return Event::next;
}
}

680
plugins/Media/Util/ImageFile.php Normal file
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@@ -0,0 +1,680 @@
<?php
// This file is part of GNU social - https://www.gnu.org/software/social
//
// GNU social 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.
//
// GNU social 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 GNU social. If not, see <http://www.gnu.org/licenses/>.
/**
* Abstraction for an image file
*
* @category Image
* @package GNUsocial
*
* @author Evan Prodromou <evan@status.net>
* @author Zach Copley <zach@status.net>
* @author Mikael Nordfeldth <mmn@hethane.se>
* @author Miguel Dantas <biodantasgs@gmail.com>
* @author Diogo Cordeiro <diogo@fc.up.pt>
* @copyright 2008, 2019-2020 Free Software Foundation http://fsf.org
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
*/
namespace Plugin\Media\Util;
use Intervention\Image\ImageManagerStatic as Image;
/**
* A wrapper on uploaded images
*
* Makes it slightly easier to accept an image file from upload.
*
* @category Image
* @package GNUsocial
*
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @author Evan Prodromou <evan@status.net>
* @author Zach Copley <zach@status.net>
*
* @see https://www.gnu.org/software/social/
*/
class ImageFile extends MediaFile
{
public $type;
public $height;
public $width;
public $rotate = 0; // degrees to rotate for properly oriented image (extrapolated from EXIF etc.)
public $animated; // Animated image? (has more than 1 frame). null means untested
public $mimetype; // The _ImageFile_ mimetype, _not_ the originating File object
// /**
// * ImageFile constructor.
// *
// * @param int|null $id The DB id of the file. Int if known, null if not.
// * If null, it searches for it. If -1, it skips all DB
// * interactions (useful for temporary objects)
// * @param string $filepath The path of the file this media refers to. Required
// * @param string|null $filehash The hash of the file, if known. Optional
// *
// * @throws ClientException
// * @throws NoResultException
// * @throws ServerException
// * @throws UnsupportedMediaException
// */
// public function __construct(?int $id = null, string $filepath, ?string $filehash = null)
// {
// $old_limit = ini_set('memory_limit', common_config('attachments', 'memory_limit'));
// // These do not have to be the same as fileRecord->filename for example,
// // since we may have generated an image source file from something else!
// $this->filepath = $filepath;
// $this->filename = basename($filepath);
// $img = Image::make($this->filepath);
// $this->mimetype = $img->mime();
// $cmp = function ($obj, $type) {
// if ($obj->mimetype == image_type_to_mime_type($type)) {
// $obj->type = $type;
// return true;
// }
// return false;
// };
// if (!(($cmp($this, IMAGETYPE_GIF) && function_exists('imagecreatefromgif')) ||
// ($cmp($this, IMAGETYPE_JPEG) && function_exists('imagecreatefromjpeg')) ||
// ($cmp($this, IMAGETYPE_BMP) && function_exists('imagecreatefrombmp')) ||
// ($cmp($this, IMAGETYPE_WBMP) && function_exists('imagecreatefromwbmp')) ||
// ($cmp($this, IMAGETYPE_XBM) && function_exists('imagecreatefromxbm')) ||
// ($cmp($this, IMAGETYPE_PNG) && function_exists('imagecreatefrompng')) ||
// ($cmp($this, IMAGETYPE_WEBP) && function_exists('imagecreatefromwebp'))
// )
// ) {
// common_debug("Mimetype '{$this->mimetype}' was not recognized as a supported format");
// // TRANS: Exception thrown when trying to upload an unsupported image file format.
// throw new UnsupportedMediaException(_m('Unsupported image format.'), $this->filepath);
// }
// $this->width = $img->width();
// $this->height = $img->height();
// parent::__construct(
// $filepath,
// $this->mimetype,
// $filehash,
// $id
// );
// if ($this->type === IMAGETYPE_JPEG) {
// // Orientation value to rotate thumbnails properly
// $exif = @$img->exif();
// if (is_array($exif) && isset($exif['Orientation'])) {
// switch ((int)($exif['Orientation'])) {
// case 1: // top is top
// $this->rotate = 0;
// break;
// case 3: // top is bottom
// $this->rotate = 180;
// break;
// case 6: // top is right
// $this->rotate = -90;
// break;
// case 8: // top is left
// $this->rotate = 90;
// break;
// }
// // If we ever write this back, Orientation should be set to '1'
// }
// } elseif ($this->type === IMAGETYPE_GIF) {
// $this->animated = $this->isAnimatedGif();
// }
// Event::handle('FillImageFileMetadata', [$this]);
// $img->destroy();
// ini_set('memory_limit', $old_limit); // Restore the old memory limit
// }
/**
* Shortcut method to get an ImageFile from a File
*
* @param File $file
* @return ImageFile
* @throws ClientException
* @throws FileNotFoundException
* @throws NoResultException
* @throws ServerException
* @throws UnsupportedMediaException
* @throws UseFileAsThumbnailException
*
* @return ImageFile
*/
public static function fromFileObject(File $file)
{
$imgPath = null;
$media = common_get_mime_media($file->mimetype);
if (Event::handle('CreateFileImageThumbnailSource', [$file, &$imgPath, $media])) {
if (empty($file->filename) && !file_exists($imgPath)) {
throw new FileNotFoundException($imgPath);
}
// First some mimetype specific exceptions
switch ($file->mimetype) {
case 'image/svg+xml':
throw new UseFileAsThumbnailException($file);
}
// And we'll only consider it an image if it has such a media type
if ($media !== 'image') {
throw new UnsupportedMediaException(_m('Unsupported media format.'), $file->getPath());
}
$filepath = $file->getPath();
return new self($file->getID(), $filepath, $file->filehash);
}
public function getPath()
{
if (!file_exists($this->filepath)) {
throw new FileNotFoundException($this->filepath);
}
return $this->filepath;
}
/**
* Process a file upload
*
* Uses MediaFile's `fromUpload` to do the majority of the work
* and ensures the uploaded file is in fact an image.
*
* @param string $param
* @param null|Profile $scoped
*
* @throws NoResultException
* @throws NoUploadedMediaException
* @throws ServerException
* @throws UnsupportedMediaException
* @throws UseFileAsThumbnailException
* @throws ClientException
*
* @return ImageFile
*
*/
public static function fromUpload(string $param = 'upload', ?Profile $scoped = null): self
{
$mediafile = parent::fromUpload($param, $scoped);
if ($mediafile instanceof self) {
return $mediafile;
} else {
$mediafile->delete();
// We can conclude that we have failed to get the MIME type
// TRANS: Client exception thrown trying to upload an invalid image type.
// TRANS: %s is the file type that was denied
$hint = sprintf(_m('"%s" is not a supported file type on this server. ' .
'Try using another image format.'), $mediafile->mimetype);
throw new ClientException($hint);
}
}
/**
* Create a new ImageFile object from an url
*
* Uses MediaFile's `fromUrl` to do the majority of the work
* and ensures the uploaded file is in fact an image.
*
* @param string $url Remote image URL
* @param Profile|null $scoped
* @param string|null $name
* @param int|null $file_id same as in this class constructor
* @return ImageFile
* @throws ClientException
* @throws HTTP_Request2_Exception
* @throws InvalidFilenameException
* @throws NoResultException
* @throws ServerException
* @throws UnsupportedMediaException
* @throws UseFileAsThumbnailException
*
* @return ImageFile
*/
public static function fromUrl(string $url, ?Profile $scoped = null, ?string $name = null, ?int $file_id = null): self
{
$mediafile = parent::fromUrl($url, $scoped, $name, $file_id);
if ($mediafile instanceof self) {
return $mediafile;
} else {
$mediafile->delete();
// We can conclude that we have failed to get the MIME type
// TRANS: Client exception thrown trying to upload an invalid image type.
// TRANS: %s is the file type that was denied
$hint = sprintf(_m('"%s" is not a supported file type on this server. ' .
'Try using another image format.'), $mediafile->mimetype);
throw new ClientException($hint);
}
}
/**
* Several obscure file types should be normalized to WebP on resize.
*
* Keeps only GIF (if animated) and WebP formats
*
* @return int
*/
public function preferredType()
{
if ($this->type == IMAGETYPE_GIF && $this->animated) {
return $this->type;
}
return IMAGETYPE_WEBP;
}
/**
* Copy the image file to the given destination.
*
* This function may modify the resulting file. Please use the
* returned ImageFile object to read metadata (width, height etc.)
*
* @param string $outpath
*
* @throws NoResultException
* @throws ServerException
* @throws UnsupportedMediaException
* @throws UseFileAsThumbnailException
* @throws ClientException
*
* @return ImageFile the image stored at target path
*
*/
public function copyTo($outpath)
{
return new self(null, $this->resizeTo($outpath));
}
/**
* Create and save a thumbnail image.
*
* @param string $outpath
* @param array $box width, height, boundary box (x,y,w,h) defaults to full image
*
* @throws UnsupportedMediaException
* @throws UseFileAsThumbnailException
*
* @return string full local filesystem filename
* @return string full local filesystem filename
*
*/
public function resizeTo($outpath, array $box = [])
{
$box['width'] = isset($box['width']) ? (int) ($box['width']) : $this->width;
$box['height'] = isset($box['height']) ? (int) ($box['height']) : $this->height;
$box['x'] = isset($box['x']) ? (int) ($box['x']) : 0;
$box['y'] = isset($box['y']) ? (int) ($box['y']) : 0;
$box['w'] = isset($box['w']) ? (int) ($box['w']) : $this->width;
$box['h'] = isset($box['h']) ? (int) ($box['h']) : $this->height;
if (!file_exists($this->filepath)) {
// TRANS: Exception thrown during resize when image has been registered as present,
// but is no longer there.
throw new FileNotFoundException($this->filepath);
}
// Don't rotate/crop/scale if it isn't necessary
if ($box['width'] === $this->width
&& $box['height'] === $this->height
&& $box['x'] === 0
&& $box['y'] === 0
&& $box['w'] === $this->width
&& $box['h'] === $this->height
&& $this->type === $this->preferredType()) {
if (abs($this->rotate) == 90) {
// Box is rotated 90 degrees in either direction,
// so we have to redefine x to y and vice versa.
$tmp = $box['width'];
$box['width'] = $box['height'];
$box['height'] = $tmp;
$tmp = $box['x'];
$box['x'] = $box['y'];
$box['y'] = $tmp;
$tmp = $box['w'];
$box['w'] = $box['h'];
$box['h'] = $tmp;
}
}
$this->height = $box['h'];
$this->width = $box['w'];
if (Event::handle('StartResizeImageFile', [$this, $outpath, $box])) {
$outpath = $this->resizeToFile($outpath, $box);
}
if (!file_exists($outpath)) {
if ($this->fileRecord instanceof File) {
throw new UseFileAsThumbnailException($this->fileRecord);
} else {
throw new UnsupportedMediaException('No local File object exists for ImageFile.');
}
}
return $outpath;
}
/**
* Resizes a file. If $box is omitted, the size is not changed, but this is still useful,
* because it will reencode the image in the `self::prefferedType()` format. This only
* applies henceforward, not retroactively
*
* Increases the 'memory_limit' to the one in the 'attachments' section in the config, to
* enable the handling of bigger images, which can cause a peak of memory consumption, while
* encoding
*
* @param $outpath
* @param array $box
*
* @throws Exception
*/
protected function resizeToFile(string $outpath, array $box): string
{
$old_limit = ini_set('memory_limit', common_config('attachments', 'memory_limit'));
try {
$img = Image::make($this->filepath);
} catch (Exception $e) {
common_log(LOG_ERR, __METHOD__ . ' encountered exception: ' . print_r($e, true));
// TRANS: Exception thrown when trying to resize an unknown file type.
throw new Exception(_m('Unknown file type'));
}
if ($this->filepath === $outpath) {
@unlink($outpath);
}
if ($this->rotate != 0) {
$img = $img->orientate();
}
$img->fit(
$box['width'],
$box['height'],
function ($constraint) {
if (common_config('attachments', 'upscale') !== true) {
$constraint->upsize(); // Prevent upscaling
}
}
);
// Ensure we save in the correct format and allow customization based on type
$type = $this->preferredType();
switch ($type) {
case IMAGETYPE_WEBP:
$img->save($outpath, 100, 'webp');
break;
case IMAGETYPE_GIF:
$img->save($outpath, 100, 'gif');
break;
default:
// TRANS: Exception thrown when trying resize an unknown file type.
throw new Exception(_m('Unknown file type'));
}
$img->destroy();
ini_set('memory_limit', $old_limit); // Restore the old memory limit
return $outpath;
}
public function scaleToFit($maxWidth = null, $maxHeight = null, $crop = null)
{
return self::getScalingValues(
$this->width,
$this->height,
$maxWidth,
$maxHeight,
$crop,
$this->rotate
);
}
/**
* Gets scaling values for images of various types. Cropping can be enabled.
*
* Values will scale _up_ to fit max values if cropping is enabled!
* With cropping disabled, the max value of each axis will be respected.
*
* @param $width int Original width
* @param $height int Original height
* @param $maxW int Resulting max width
* @param $maxH int Resulting max height
* @param $crop int Crop to the size (not preserving aspect ratio)
* @param int $rotate
*
* @throws ServerException
*
* @return array
*
*/
public static function getScalingValues(
$width,
$height,
$maxW = null,
$maxH = null,
$crop = null,
$rotate = 0
) {
$maxW = $maxW ?: common_config('thumbnail', 'width');
$maxH = $maxH ?: common_config('thumbnail', 'height');
if ($maxW < 1 || ($maxH !== null && $maxH < 1)) {
throw new ServerException('Bad parameters for ImageFile::getScalingValues');
}
if ($maxH === null) {
// if maxH is null, we set maxH to equal maxW and enable crop
$maxH = $maxW;
$crop = true;
}
// Because GD doesn't understand EXIF orientation etc.
if (abs($rotate) == 90) {
$tmp = $width;
$width = $height;
$height = $tmp;
}
// Cropping data (for original image size). Default values, 0 and null,
// imply no cropping and with preserved aspect ratio (per axis).
$cx = 0; // crop x
$cy = 0; // crop y
$cw = null; // crop area width
$ch = null; // crop area height
if ($crop) {
$s_ar = $width / $height;
$t_ar = $maxW / $maxH;
$rw = $maxW;
$rh = $maxH;
// Source aspect ratio differs from target, recalculate crop points!
if ($s_ar > $t_ar) {
$cx = floor($width / 2 - $height * $t_ar / 2);
$cw = ceil($height * $t_ar);
} elseif ($s_ar < $t_ar) {
$cy = floor($height / 2 - $width / $t_ar / 2);
$ch = ceil($width / $t_ar);
}
} else {
$rw = $maxW;
$rh = ceil($height * $rw / $width);
// Scaling caused too large height, decrease to max accepted value
if ($rh > $maxH) {
$rh = $maxH;
$rw = ceil($width * $rh / $height);
}
}
return [(int)$rw, (int)$rh,
(int)$cx, (int)$cy,
is_null($cw) ? $width : (int)$cw,
is_null($ch) ? $height : (int)$ch];
}
/**
* Animated GIF test, courtesy of frank at huddler dot com et al:
* http://php.net/manual/en/function.imagecreatefromgif.php#104473
* Modified so avoid landing inside of a header (and thus not matching our regexp).
*/
protected function isAnimatedGif()
{
if (!($fh = @fopen($this->filepath, 'rb'))) {
return false;
}
$count = 0;
//an animated gif contains multiple "frames", with each frame having a
//header made up of:
// * a static 4-byte sequence (\x00\x21\xF9\x04)
// * 4 variable bytes
// * a static 2-byte sequence (\x00\x2C)
// In total the header is maximum 10 bytes.
// We read through the file til we reach the end of the file, or we've found
// at least 2 frame headers
while (!feof($fh) && $count < 2) {
$chunk = fread($fh, 1024 * 100); //read 100kb at a time
$count += preg_match_all('#\x00\x21\xF9\x04.{4}\x00\x2C#s', $chunk, $matches);
// rewind in case we ended up in the middle of the header, but avoid
// infinite loop (i.e. don't rewind if we're already in the end).
if (!feof($fh) && ftell($fh) >= 9) {
fseek($fh, -9, SEEK_CUR);
}
}
fclose($fh);
return $count >= 1; // number of animated frames apart from the original image
}
/**
* @param $width
* @param $height
* @param $crop
* @param false $upscale
* @return File_thumbnail
* @throws ClientException
* @throws FileNotFoundException
* @throws FileNotStoredLocallyException
* @throws InvalidFilenameException
* @throws ServerException
* @throws UnsupportedMediaException
* @throws UseFileAsThumbnailException
*/
public function getFileThumbnail($width = null, $height = null, $crop = null, $upscale = false)
{
if (!$this->fileRecord instanceof File) {
throw new ServerException('No File object attached to this ImageFile object.');
}
// Throws FileNotFoundException or FileNotStoredLocallyException
$this->filepath = $this->fileRecord->getFileOrThumbnailPath();
$filename = basename($this->filepath);
if ($width === null) {
$width = common_config('thumbnail', 'width');
$height = common_config('thumbnail', 'height');
$crop = common_config('thumbnail', 'crop');
}
if (!$upscale) {
if ($width > $this->width) {
$width = $this->width;
}
if (!is_null($height) && $height > $this->height) {
$height = $this->height;
}
}
if ($height === null) {
$height = $width;
$crop = true;
}
// Get proper aspect ratio width and height before lookup
// We have to do it through an ImageFile object because of orientation etc.
// Only other solution would've been to rotate + rewrite uploaded files
// which we don't want to do because we like original, untouched data!
list($width, $height, $x, $y, $w, $h) = $this->scaleToFit($width, $height, $crop);
$thumb = File_thumbnail::pkeyGet([
'file_id' => $this->fileRecord->getID(),
'width' => $width,
'height' => $height,
]);
if ($thumb instanceof File_thumbnail) {
$this->height = $height;
$this->width = $width;
return $thumb;
}
$type = $this->preferredType();
$ext = image_type_to_extension($type, true);
// Decoding returns null if the file is in the old format
$filename = MediaFile::decodeFilename(basename($this->filepath));
// Encoding null makes the file use 'untitled', and also replaces the extension
$outfilename = MediaFile::encodeFilename($filename, $this->filehash, $ext);
// The boundary box for our resizing
$box = [
'width' => $width, 'height' => $height,
'x' => $x, 'y' => $y,
'w' => $w, 'h' => $h,
];
$outpath = File_thumbnail::path(
"thumb-{$this->fileRecord->id}-{$box['width']}x{$box['height']}-{$outfilename}"
);
// Doublecheck that parameters are sane and integers.
if ($box['width'] < 1 || $box['width'] > common_config('thumbnail', 'maxsize')
|| $box['height'] < 1 || $box['height'] > common_config('thumbnail', 'maxsize')
|| $box['w'] < 1 || $box['x'] >= $this->width
|| $box['h'] < 1 || $box['y'] >= $this->height) {
// Fail on bad width parameter. If this occurs, it's due to algorithm in ImageFile->scaleToFit
common_debug("Boundary box parameters for resize of {$this->filepath} : " . var_export($box, true));
throw new ServerException('Bad thumbnail size parameters.');
}
common_debug(sprintf(
'Generating a thumbnail of File id=%u of size %ux%u',
$this->fileRecord->getID(),
$width,
$height
));
$this->height = $box['height'];
$this->width = $box['width'];
// Perform resize and store into file
$outpath = $this->resizeTo($outpath, $box);
$outname = basename($outpath);
return File_thumbnail::saveThumbnail(
$this->fileRecord->getID(),
$this->fileRecord->getUrl(false),
$width,
$height,
$outname
);
}
}

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plugins/Media/Util/MediaFile.php Normal file
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<?php
// This file is part of GNU social - https://www.gnu.org/software/social
//
// GNU social 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.
//
// GNU social 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 GNU social. If not, see <http://www.gnu.org/licenses/>.
/**
* Abstraction for media files
*
* @category Media
* @package GNUsocial
*
* @author Robin Millette <robin@millette.info>
* @author Miguel Dantas <biodantas@gmail.com>
* @author Zach Copley <zach@status.net>
* @author Mikael Nordfeldth <mmn@hethane.se>
* @author Diogo Peralta Cordeiro <mail+gnusocial@diogo.site>
* @copyright 2008-2009, 2019-2021 Free Software Foundation http://fsf.org
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
*/
namespace Plugin\Media\Util;
/**
* Class responsible for abstracting media files
*/
class MediaFile
{
public $id;
public $filepath;
public $filename;
public $fileRecord;
public $fileurl;
public $short_fileurl;
public $mimetype;
// /**
// * MediaFile constructor.
// *
// * @param string $filepath The path of the file this media refers to. Required
// * @param string $mimetype The mimetype of the file. Required
// * @param string|null $filehash The hash of the file, if known. Optional
// * @param int|null $id The DB id of the file. Int if known, null if not.
// * If null, it searches for it. If -1, it skips all DB
// * interactions (useful for temporary objects)
// *
// * @throws ClientException
// * @throws NoResultException
// * @throws ServerException
// */
// public function __construct(string $filepath, string $mimetype, ?string $filehash = null, ?int $id = null)
// {
// $this->filepath = $filepath;
// $this->filename = basename($this->filepath);
// $this->mimetype = $mimetype;
// $this->filehash = self::getHashOfFile($this->filepath, $filehash);
// $this->id = $id;
// // If id is -1, it means we're dealing with a temporary object and don't want to store it in the DB,
// // or add redirects
// if ($this->id !== -1) {
// if (!empty($this->id)) {
// // If we have an id, load it
// $this->fileRecord = new File();
// $this->fileRecord->id = $this->id;
// if (!$this->fileRecord->find(true)) {
// // If we have set an ID, we need that ID to exist!
// throw new NoResultException($this->fileRecord);
// }
// } else {
// // Otherwise, store it
// $this->fileRecord = $this->storeFile();
// }
// $this->fileurl = common_local_url(
// 'attachment',
// ['attachment' => $this->fileRecord->id]
// );
// $this->short_fileurl = common_shorten_url($this->fileurl);
// }
// }
/**
* Shortcut method to get a MediaFile from a File
*
* @param File $file
* @return MediaFile|ImageFile
* @throws ClientException
* @throws FileNotFoundException
* @throws NoResultException
* @throws ServerException
*/
public static function fromFileObject(File $file)
{
$filepath = null;
try {
$filepath = $file->getPath();
} catch (Exception $e) {}
return new self($filepath, common_get_mime_media($file->mimetype), $file->filehash, $file->getID());
}
public function attachToNotice(Notice $notice)
{
File_to_post::processNew($this->fileRecord, $notice);
}
public function getPath()
{
return File::path($this->filename);
}
/**
* @param bool|null $use_local true means require local, null means prefer original, false means use whatever is stored
* @return string
*/
public function getUrl(?bool $use_local=null): ?string
{
if ($use_local !== false) {
if (empty($this->fileurl)) {
// A locally stored file, so let's generate a URL for our instance.
return common_local_url('attachment_view', ['filehash' => $this->filehash]);
}
}
// The original file's URL
return $this->fileurl;
}
public function shortUrl()
{
return common_shorten_url($this->getUrl());
}
public function getEnclosure()
{
return $this->getFile()->getEnclosure();
}
public function delete($useWhere=false)
{
if (!is_null($this->fileRecord)) {
$this->fileRecord->delete($useWhere);
}
@unlink($this->filepath);
}
public function unlink()
{
$this->filename = null;
// Delete the file, if it exists locally
if (!empty($this->filepath) && file_exists($this->filepath)) {
$deleted = @unlink($this->filepath);
if (!$deleted) {
common_log(LOG_ERR, sprintf('Could not unlink existing file: "%s"', $this->filepath));
}
}
$this->fileRecord->unlink();
}
public function getFile()
{
if (!$this->fileRecord instanceof File) {
throw new ServerException('File record did not exist for MediaFile');
}
return $this->fileRecord;
}
/**
* Calculate the hash of a file.
*
* This won't work for files >2GiB because PHP uses only 32bit.
*
* @param string $filepath
* @param null|string $filehash
*
* @throws ServerException
*
* @return string
*
*/
public static function getHashOfFile(string $filepath, $filehash = null)
{
assert(!empty($filepath), __METHOD__ . ': filepath cannot be null');
if ($filehash === null) {
// Calculate if we have an older upload method somewhere (Qvitter) that
// doesn't do this before calling new MediaFile on its local files...
$filehash = hash_file(File::FILEHASH_ALG, $filepath);
if ($filehash === false) {
throw new ServerException('Could not read file for hashing');
}
}
return $filehash;
}
/**
* Retrieve or insert as a file in the DB
*
* @throws ServerException
* @throws ClientException
*
* @return object File
*
*/
protected function storeFile()
{
try {
$file = File::getByHash($this->filehash);
if (is_null($this->fileurl) && is_null($file->getUrl(false))) {
// An already existing local file is being re-added, return it
return $file;
}
} catch (NoResultException $e) {
// Well, let's just continue below.
}
$file = new File;
$file->filename = $this->filename;
$file->url = $this->fileurl;
$file->urlhash = is_null($file->url) ? null : File::hashurl($file->url);
$file->filehash = $this->filehash;
$file->size = filesize($this->filepath);
if ($file->size === false) {
throw new ServerException('Could not read file to get its size');
}
$file->date = time();
$file->mimetype = $this->mimetype;
$file_id = $file->insert();
if ($file_id === false) {
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(_m('There was a database error while saving your file. Please try again.'));
}
// Set file geometrical properties if available
try {
$image = ImageFile::fromFileObject($file);
$orig = clone($file);
$file->width = $image->width;
$file->height = $image->height;
$file->update($orig);
// We have to cleanup after ImageFile, since it
// may have generated a temporary file from a
// video support plugin or something.
// FIXME: Do this more automagically.
// Honestly, I think this is unlikely these days,
// but better be safe than sorry, I guess
if ($image->getPath() != $file->getPath()) {
$image->unlink();
}
} catch (ServerException $e) {
// We just couldn't make out an image from the file. This
// does not have to be UnsupportedMediaException, as we can
// also get ServerException from files not existing etc.
}
return $file;
}
/**
* The maximum allowed file size, as a string
*/
public static function maxFileSize()
{
$value = self::maxFileSizeInt();
if ($value > 1024 * 1024) {
$value = $value / (1024 * 1024);
// TRANS: Number of megabytes. %d is the number.
return sprintf(_m('%dMB', '%dMB', $value), $value);
} elseif ($value > 1024) {
$value = $value / 1024;
// TRANS: Number of kilobytes. %d is the number.
return sprintf(_m('%dkB', '%dkB', $value), $value);
} else {
// TRANS: Number of bytes. %d is the number.
return sprintf(_m('%dB', '%dB', $value), $value);
}
}
/**
* The maximum allowed file size, as an int
*/
public static function maxFileSizeInt(): int
{
return common_config('attachments', 'file_quota');
}
/**
* Encodes a file name and a file hash in the new file format, which is used to avoid
* having an extension in the file, removing trust in extensions, while keeping the original name
*
* @param null|string $original_name
* @param string $filehash
* @param null|bool|string $ext from File::getSafeExtension
*
* @throws ClientException
* @throws ServerException
*
* @return string
*/
public static function encodeFilename($original_name, string $filehash, $ext = null): string
{
if (empty($original_name)) {
$original_name = _m('Untitled attachment');
}
// If we're given an extension explicitly, use it, otherwise...
$ext = $ext ?:
// get a replacement extension if configured, returns false if it's blocked,
// null if no extension
File::getSafeExtension($original_name);
if ($ext === false) {
throw new ClientException(_m('Blacklisted file extension.'));
}
if (!empty($ext)) {
// Remove dots if we have them (make sure they're not repeated)
$ext = preg_replace('/^\.+/', '', $ext);
$original_name = preg_replace('/\.+.+$/i', ".{$ext}", $original_name);
}
// Avoid unnecessarily large file names
$pretty_name = substr(trim($original_name), 0, 30); // 30 seems like a sensible limit for a file name
$enc_name = bin2hex($pretty_name);
return "{$enc_name}-{$filehash}";
}
/**
* Decode the new filename format
*
* @return false | null | string on failure, no match (old format) or original file name, respectively
*/
public static function decodeFilename(string $encoded_filename)
{
// Should match:
// hex-hash
// thumb-id-widthxheight-hex-hash
// And return the `hex` part
$ret = preg_match('/^(.*-)?([^-]+)-[^-]+$/', $encoded_filename, $matches);
if ($ret === false) {
return false;
} elseif ($ret === 0 || !ctype_xdigit($matches[2])) {
return null; // No match
} else {
$filename = hex2bin($matches[2]);
// Matches extension
if (preg_match('/^(.+?)\.(.+)$/', $filename, $sub_matches) === 1) {
$ext = $sub_matches[2];
// Previously, there was a blacklisted extension array, which could have an alternative
// extension, such as phps, to replace php. We want to turn it back (this is deprecated,
// as it no longer makes sense, since we don't trust trust files based on extension,
// but keep the feature)
$blacklist = common_config('attachments', 'extblacklist');
if (is_array($blacklist)) {
foreach ($blacklist as $upload_ext => $safe_ext) {
if ($ext === $safe_ext) {
$ext = $upload_ext;
break;
}
}
}
return "{$sub_matches[1]}.{$ext}";
} else {
// No extension, don't bother trying to replace it
return $filename;
}
}
}
/**
* Create a new MediaFile or ImageFile object from an upload
*
* Tries to set the mimetype correctly, using the most secure method available and rejects the file otherwise.
* In case the upload is an image, this function returns an new ImageFile (which extends MediaFile)
* The filename has a new format:
* bin2hex("{$original_name}.{$ext}")."-{$filehash}"
* This format should be respected. Notice the dash, which is important to distinguish it from the previous
* format ("{$hash}.{$ext}")
*
* @param string $param Form name
* @param null|Profile $scoped
*
* @throws ClientException
* @throws InvalidFilenameException
* @throws NoResultException
* @throws NoUploadedMediaException
* @throws ServerException
* @throws UnsupportedMediaException
* @throws UseFileAsThumbnailException
*
* @return ImageFile|MediaFile
*/
public static function fromUpload(string $param = 'media', ?Profile $scoped = null)
{
// The existence of the "error" element means PHP has processed it properly even if it was ok.
if (!(isset($_FILES[$param], $_FILES[$param]['error']))) {
throw new NoUploadedMediaException($param);
}
switch ($_FILES[$param]['error']) {
case UPLOAD_ERR_OK: // success, jump out
break;
case UPLOAD_ERR_INI_SIZE:
case UPLOAD_ERR_FORM_SIZE:
// TRANS: Exception thrown when too large a file is uploaded.
// TRANS: %s is the maximum file size, for example "500b", "10kB" or "2MB".
throw new ClientException(sprintf(
_m('That file is too big. The maximum file size is %s.'),
self::maxFileSize()
));
case UPLOAD_ERR_PARTIAL:
@unlink($_FILES[$param]['tmp_name']);
// TRANS: Client exception.
throw new ClientException(_m('The uploaded file was only partially uploaded.'));
case UPLOAD_ERR_NO_FILE:
// No file; probably just a non-AJAX submission.
throw new NoUploadedMediaException($param);
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(_m('Missing a temporary folder.'));
case UPLOAD_ERR_CANT_WRITE:
// TRANS: Client exception thrown when writing to disk is not possible during a file upload operation.
throw new ClientException(_m('Failed to write file to disk.'));
case UPLOAD_ERR_EXTENSION:
// TRANS: Client exception thrown when a file upload operation has been stopped by an extension.
throw new ClientException(_m('File upload stopped by extension.'));
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(_m('System error uploading file.'));
}
$filehash = strtolower(self::getHashOfFile($_FILES[$param]['tmp_name']));
$fileid = null;
try {
$file = File::getByHash($filehash);
// There can be more than one file for the same filehash IF the url are different (due to different metadata).
while ($file->fetch()) {
if ($file->getUrl(false)) {
// Files uploaded by Actors of this instance won't have an url, skip.
continue;
}
try {
return ImageFile::fromFileObject($file);
} catch (UnsupportedMediaException $e) {
return MediaFile::fromFileObject($file);
}
}
// Assert: If we got to this line, then we only traversed URLs on the while loop above.
if (common_config('attachments', 'prefer_remote')) {
// Was this file imported from a remote source already?
$filepath = $file->getPath(); // This function will throw FileNotFoundException if not.
// Assert: If we got to this line, then we can use this file and just add redirections.
$mimetype = $file->mimetype;
$fileid = $file->getID();
} else {
throw new FileNotFoundException('This isn\'t a path.'); // A bit of dadaist art.
// It's natural that a sysadmin prefers to not add redirections to the first remote link of an
// attachment, it's not a very consistent thing to do. On the other hand, lack of space can drive
// a person crazy.
// Also note that if one configured StoreRemoteMedia to not save original images (very likely), then
// having prefer_remote enabled will never store the original attachment (sort of the idea here).
}
} catch (FileNotFoundException | NoResultException $e) {
// We have to save the upload as a new local file. This is the normal course of action.
if ($scoped instanceof Profile) {
// Throws exception if additional size does not respect quota
// This test is only needed, of course, if we're uploading something new.
File::respectsQuota($scoped, $_FILES[$param]['size']);
}
$mimetype = self::getUploadedMimeType($_FILES[$param]['tmp_name'], $_FILES[$param]['name']);
$media = common_get_mime_media($mimetype);
$basename = basename($_FILES[$param]['name']);
if ($media == 'image') {
// Use -1 for the id to avoid adding this temporary file to the DB
$img = new ImageFile(-1, $_FILES[$param]['tmp_name']);
// Validate the image by re-encoding it. Additionally normalizes old formats to WebP,
// keeping GIF untouched if animated
$outpath = $img->resizeTo($img->filepath);
$ext = image_type_to_extension($img->preferredType(), false);
}
$filename = self::encodeFilename($basename, $filehash, isset($ext) ? $ext : File::getSafeExtension($basename));
$filepath = File::path($filename);
if ($media == 'image') {
$result = rename($outpath, $filepath);
} else {
$result = move_uploaded_file($_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.
// UX: too specific
throw new ClientException(_m('File could not be moved to destination directory.'));
}
if ($media == 'image') {
return new ImageFile(null, $filepath, $filehash);
}
}
return new self($filepath, $mimetype, $filehash, $fileid);
}
/**
* Create a new MediaFile or ImageFile object from an url
*
* Tries to set the mimetype correctly, using the most secure method available and rejects the file otherwise.
* In case the url is an image, this function returns an new ImageFile (which extends MediaFile)
* The filename has the following format: bin2hex("{$original_name}.{$ext}")."-{$filehash}"
*
* @param string $url Remote media URL
* @param Profile|null $scoped
* @param string|null $name
* @param int|null $file_id same as in this class constructor
* @return ImageFile|MediaFile
* @throws ClientException
* @throws HTTP_Request2_Exception
* @throws InvalidFilenameException
* @throws NoResultException
* @throws ServerException
* @throws UnsupportedMediaException
* @throws UseFileAsThumbnailException
*
* @return ImageFile|MediaFile
*/
public static function fromUrl(string $url, ?Profile $scoped = null, ?string $name = null, ?int $file_id = null)
{
if (!common_valid_http_url($url)) {
// TRANS: Server exception. %s is a URL.
throw new ServerException(sprintf('Invalid remote media URL %s.', $url));
}
$http = new HTTPClient();
common_debug(sprintf('Performing HEAD request for incoming activity to avoid ' .
'unnecessarily downloading too large files. URL: %s',
$url));
$head = $http->head($url);
$url = $head->getEffectiveUrl(); // to avoid going through redirects again
if (empty($url)) {
throw new ServerException(sprintf('URL after redirects is somehow empty, for URL %s.', $url));
}
$headers = $head->getHeader();
$headers = array_change_key_case($headers, CASE_LOWER);
if (array_key_exists('content-length', $headers)) {
$fileQuota = common_config('attachments', 'file_quota');
$fileSize = $headers['content-length'];
if ($fileSize > $fileQuota) {
// TRANS: Message used to be inserted as %2$s in the text "No file may
// TRANS: be larger than %1$d byte and the file you sent was %2$s.".
// TRANS: %1$d is the number of bytes of an uploaded file.
$fileSizeText = sprintf(_m('%1$d byte', '%1$d bytes', $fileSize), $fileSize);
// TRANS: Message given if an upload is larger than the configured maximum.
// TRANS: %1$d (used for plural) is the byte limit for uploads,
// TRANS: %2$s is the proper form of "n bytes". This is the only ways to have
// TRANS: gettext support multiple plurals in the same message, unfortunately...
throw new ClientException(
sprintf(
_m(
'No file may be larger than %1$d byte and the file you sent was %2$s. Try to upload a smaller version.',
'No file may be larger than %1$d bytes and the file you sent was %2$s. Try to upload a smaller version.',
$fileQuota
),
$fileQuota,
$fileSizeText
)
);
}
} else {
throw new ServerException(sprintf('Invalid remote media URL headers %s.', $url));
}
unset($head);
unset($headers);
$tempfile = new TemporaryFile('gs-mediafile');
fwrite($tempfile->getResource(), HTTPClient::quickGet($url));
fflush($tempfile->getResource());
$filehash = strtolower(self::getHashOfFile($tempfile->getRealPath()));
try {
$file = File::getByUrl($url);
/*
* If no exception is thrown the file exists locally, so we'll use
* that and just add redirections.
* But if the _actual_ locally stored file doesn't exist, getPath
* will throw FileNotFoundException.
*/
$filepath = $file->getPath();
$mimetype = $file->mimetype;
} catch (FileNotFoundException | NoResultException $e) {
// We have to save the downloaded as a new local file.
// This is the normal course of action.
if ($scoped instanceof Profile) {
// Throws exception if additional size does not respect quota
// This test is only needed, of course, if something new is uploaded.
File::respectsQuota($scoped, filesize($tempfile->getRealPath()));
}
$mimetype = self::getUploadedMimeType(
$tempfile->getRealPath(),
$name ?? false
);
$media = common_get_mime_media($mimetype);
$basename = basename($name ?? ('media' . common_timestamp()));
if ($media === 'image') {
// Use -1 for the id to avoid adding this temporary file to the DB.
$img = new ImageFile(-1, $tempfile->getRealPath());
// Validate the image by re-encoding it.
// Additionally normalises old formats to PNG,
// keeping JPEG and GIF untouched.
$outpath = $img->resizeTo($img->filepath);
$ext = image_type_to_extension($img->preferredType(), false);
}
$filename = self::encodeFilename(
$basename,
$filehash,
$ext ?? File::getSafeExtension($basename)
);
$filepath = File::path($filename);
if ($media === 'image') {
$result = rename($outpath, $filepath);
} else {
try {
$tempfile->commit($filepath);
$result = true;
} catch (TemporaryFileException $e) {
$result = false;
}
}
if (!$result) {
// TRANS: Server exception thrown when a file upload operation fails because the file could
// TRANS: not be moved from the temporary directory to the permanent file location.
throw new ServerException(_m('File could not be moved to destination directory.'));
}
if ($media === 'image') {
return new ImageFile($file_id, $filepath, $filehash, $url);
}
}
return new self($filepath, $mimetype, $filehash, $file_id, $url);
}
/**
* Construct media fiile from an upload
*/
public static function fromFileInfo(SplFileInfo $finfo, Profile $scoped = null)
{
$filehash = hash_file(File::FILEHASH_ALG, $finfo->getRealPath());
try {
$file = File::getByHash($filehash);
$file->fetch();
// Already have it, so let's reuse the locally stored File
// by using getPath we also check whether the file exists
// and throw a FileNotFoundException with the path if it doesn't.
$filename = basename($file->getPath());
$mimetype = $file->mimetype;
} catch (FileNotFoundException $e) {
// This happens if the file we have uploaded has disappeared
// from the local filesystem for some reason. Since we got the
// File object from a sha256 check in fromFileInfo, it's safe
// to just copy the uploaded data to disk!
// dump the contents of our filehandle to the path from our exception
// and report error if it failed.
if (file_put_contents($e->path, file_get_contents($finfo->getRealPath())) === false) {
// TRANS: Client exception thrown when a file upload operation fails because the file could
// TRANS: not be moved from the temporary folder to the permanent file location.
throw new ClientException(_m('File could not be moved to destination directory.'));
}
if (!chmod($e->path, 0664)) {
common_log(LOG_ERR, 'Could not chmod uploaded file: ' . _ve($e->path));
}
$filename = basename($file->getPath());
$mimetype = $file->mimetype;
} catch (NoResultException $e) {
if ($scoped instanceof Profile) {
File::respectsQuota($scoped, filesize($finfo->getRealPath()));
}
$mimetype = self::getUploadedMimeType($finfo->getRealPath());
$filename = strtolower($filehash) . '.' . File::guessMimeExtension($mimetype);
$filepath = File::path($filename);
$result = copy($finfo->getRealPath(), $filepath) && chmod($filepath, 0664);
if (!$result) {
common_log(LOG_ERR, 'File could not be moved (or chmodded) from ' . _ve($stream['uri']) . ' to ' . _ve($filepath));
// TRANS: Client exception thrown when a file upload operation fails because the file could
// TRANS: not be moved from the temporary folder to the permanent file location.
throw new ClientException(_m('File could not be moved to destination directory.'));
}
}
return new self($filename, $mimetype, $filehash);
}
/**
* Attempt to identify the content type of a given file.
*
* @param string $filepath filesystem path as string (file must exist)
* @param bool $originalFilename (optional) for extension-based detection
*
* @throws ServerException
* @throws ClientException if type is known, but not supported for local uploads
*
* @return string
*
* @fixme this seems to tie a front-end error message in, kinda confusing
*
*
*/
public static function getUploadedMimeType(string $filepath, $originalFilename = false)
{
// We only accept filenames to existing files
$mimetype = null;
// From CodeIgniter
// We'll need this to validate the MIME info string (e.g. text/plain; charset=us-ascii)
$regexp = '/^([a-z\-]+\/[a-z0-9\-\.\+]+)(;\s[^\/]+)?$/';
/**
* Fileinfo extension - most reliable method
*
* Apparently XAMPP, CentOS, cPanel and who knows what
* other PHP distribution channels EXPLICITLY DISABLE
* ext/fileinfo, which is otherwise enabled by default
* since PHP 5.3 ...
*/
if (function_exists('finfo_file')) {
$finfo = @finfo_open(FILEINFO_MIME);
// It is possible that a FALSE value is returned, if there is no magic MIME database
// file found on the system
if (is_resource($finfo)) {
$mime = @finfo_file($finfo, $filepath);
finfo_close($finfo);
/* According to the comments section of the PHP manual page,
* it is possible that this function returns an empty string
* for some files (e.g. if they don't exist in the magic MIME database)
*/
if (is_string($mime) && preg_match($regexp, $mime, $matches)) {
$mimetype = $matches[1];
}
}
}
/* This is an ugly hack, but UNIX-type systems provide a "native" way to detect the file type,
* which is still more secure than depending on the value of $_FILES[$field]['type'], and as it
* was reported in issue #750 (https://github.com/EllisLab/CodeIgniter/issues/750) - it's better
* than mime_content_type() as well, hence the attempts to try calling the command line with
* three different functions.
*
* Notes:
* - the DIRECTORY_SEPARATOR comparison ensures that we're not on a Windows system
* - many system admins would disable the exec(), shell_exec(), popen() and similar functions
* due to security concerns, hence the function_usable() checks
*/
if (DIRECTORY_SEPARATOR !== '\\') {
$cmd = 'file --brief --mime ' . escapeshellarg($filepath) . ' 2>&1';
if (empty($mimetype) && function_exists('exec')) {
/* This might look confusing, as $mime is being populated with all of the output
* when set in the second parameter. However, we only need the last line, which is
* the actual return value of exec(), and as such - it overwrites anything that could
* already be set for $mime previously. This effectively makes the second parameter a
* dummy value, which is only put to allow us to get the return status code.
*/
$mime = @exec($cmd, $mime, $return_status);
if ($return_status === 0 && is_string($mime) && preg_match($regexp, $mime, $matches)) {
$mimetype = $matches[1];
}
}
if (empty($mimetype) && function_exists('shell_exec')) {
$mime = @shell_exec($cmd);
if (strlen($mime) > 0) {
$mime = explode("\n", trim($mime));
if (preg_match($regexp, $mime[(count($mime) - 1)], $matches)) {
$mimetype = $matches[1];
}
}
}
if (empty($mimetype) && function_exists('popen')) {
$proc = @popen($cmd, 'r');
if (is_resource($proc)) {
$mime = @fread($proc, 512);
@pclose($proc);
if ($mime !== false) {
$mime = explode("\n", trim($mime));
if (preg_match($regexp, $mime[(count($mime) - 1)], $matches)) {
$mimetype = $matches[1];
}
}
}
}
}
// Fall back to mime_content_type(), if available (still better than $_FILES[$field]['type'])
if (empty($mimetype) && function_exists('mime_content_type')) {
$mimetype = @mime_content_type($filepath);
// It's possible that mime_content_type() returns FALSE or an empty string
if ($mimetype == false && strlen($mimetype) > 0) {
throw new ServerException(_m('Could not determine file\'s MIME type.'));
}
}
// Unclear types are such that we can't really tell by the auto
// detect what they are (.bin, .exe etc. are just "octet-stream")
$unclearTypes = ['application/octet-stream',
'application/vnd.ms-office',
'application/zip',
'text/plain',
'text/html', // Ironically, Wikimedia Commons' SVG_logo.svg is identified as text/html
// TODO: for XML we could do better content-based sniffing too
'text/xml', ];
$supported = common_config('attachments', 'supported');
// If we didn't match, or it is an unclear match
if ($originalFilename && (!$mimetype || in_array($mimetype, $unclearTypes))) {
try {
$type = common_supported_filename_to_mime($originalFilename);
return $type;
} catch (UnknownExtensionMimeException $e) {
// FIXME: I think we should keep the file extension here (supported should be === true here)
} catch (Exception $e) {
// Extension parsed but no connected mimetype, so $mimetype is our best guess
}
}
// If $config['attachments']['supported'] equals boolean true, accept any mimetype
if ($supported === true || array_key_exists($mimetype, $supported)) {
// FIXME: Don't know if it always has a mimetype here because
// finfo->file CAN return false on error: http://php.net/finfo_file
// so if $supported === true, this may return something unexpected.
return $mimetype;
}
// We can conclude that we have failed to get the MIME type
$media = common_get_mime_media($mimetype);
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.
$hint = sprintf(_m('"%1$s" is not a supported file type on this server. ' .
'Try using another %2$s format.'), $mimetype, $media);
} else {
// TRANS: Client exception thrown trying to upload a forbidden MIME type.
// TRANS: %s is the file type that was denied.
$hint = sprintf(_m('"%s" is not a supported file type on this server.'), $mimetype);
}
throw new ClientException($hint);
}
/**
* Title for a file, to display in the interface (if there's no better title) and
* for download filenames
*
* @param $file File object
* @returns string
*/
public static function getDisplayName(File $file): string
{
if (empty($file->filename)) {
return _m('Untitled attachment');
}
// New file name format is "{bin2hex(original_name.ext)}-{$hash}"
$filename = self::decodeFilename($file->filename);
// If there was an error in the match, something's wrong with some piece
// of code (could be a file with utf8 chars in the name)
$log_error_msg = "Invalid file name for File with id={$file->id} " .
"({$file->filename}). Some plugin probably did something wrong.";
if ($filename === false) {
common_log(LOG_ERR, $log_error_msg);
} elseif ($filename === null) {
// The old file name format was "{hash}.{ext}" so we didn't have a name
// This extracts the extension
$ret = preg_match('/^.+?\.+?(.+)$/', $file->filename, $matches);
if ($ret !== 1) {
common_log(LOG_ERR, $log_error_msg);
return _m('Untitled attachment');
}
$ext = $matches[1];
// There's a blacklisted extension array, which could have an alternative
// extension, such as phps, to replace php. We want to turn it back
// (currently defaulted to empty, but let's keep the feature)
$blacklist = common_config('attachments', 'extblacklist');
if (is_array($blacklist)) {
foreach ($blacklist as $upload_ext => $safe_ext) {
if ($ext === $safe_ext) {
$ext = $upload_ext;
break;
}
}
}
$filename = "untitled.{$ext}";
}
return $filename;
}
}

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<?php
/**
* StatusNet, the distributed open-source microblogging tool
*
* widget for displaying a list of notice attachments
*
* 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 UI
* @package StatusNet
*
* @author Evan Prodromou <evan@status.net>
* @author Sarven Capadisli <csarven@status.net>
* @copyright 2008 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
*
* @see http://status.net/
*/
namespace Plugin\Media\media;
/**
* used for one-off attachment action
*/
class Attachment extends AttachmentListItem
{
public function showNoticeAttachment()
{
if (Event::handle('StartShowAttachmentLink', [$this->out, $this->attachment])) {
$this->out->elementStart('div', ['id' => 'attachment_view',
'class' => 'h-entry', ]);
$this->out->elementStart('div', 'entry-title');
$this->out->element('a', $this->linkAttr(), _m('Download link'));
$this->out->elementEnd('div');
$this->out->elementStart('article', 'e-content');
$this->showRepresentation();
$this->out->elementEnd('article');
Event::handle('EndShowAttachmentLink', [$this->out, $this->attachment]);
$this->out->elementEnd('div');
}
}
public function show()
{
$this->showNoticeAttachment();
}
public function linkAttr()
{
return ['rel' => 'external', 'href' => $this->attachment->getAttachmentDownloadUrl()];
}
}

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<?php
/**
* StatusNet, the distributed open-source microblogging tool
*
* widget for displaying a list of notice attachments
*
* 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 UI
* @package StatusNet
*
* @author Evan Prodromou <evan@status.net>
* @author Sarven Capadisli <csarven@status.net>
* @copyright 2008 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
*
* @see http://status.net/
*/
namespace Plugin\Media\media;
/**
* widget for displaying a list of notice attachments
*
* There are a number of actions that display a list of notices, in
* reverse chronological order. This widget abstracts out most of the
* code for UI for notice lists. It's overridden to hide some
* data for e.g. the profile page.
*
* @category UI
* @package StatusNet
*
* @author Evan Prodromou <evan@status.net>
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
*
* @see http://status.net/
* @see Notice
* @see NoticeListItem
* @see ProfileNoticeList
*/
class AttachmentList
{
/** the current stream of notices being displayed. */
public $notice;
// /**
// * constructor
// *
// * @param Notice $notice stream of notices from DB_DataObject
// */
// function __construct(Notice $notice, $out=null)
// {
// // parent::__construct($out);
// $this->notice = $notice;
// }
/**
* show the list of attachments
*
* "Uses up" the stream by looping through it. So, probably can't
* be called twice on the same list.
*
* @return int count of items listed.
*/
public function show()
{
$attachments = $this->notice->attachments();
foreach ($attachments as $key => $att) {
// Remove attachments which are not representable with neither a title nor thumbnail
if ($att->getTitle() === _('Untitled attachment') && !$att->hasThumbnail()) {
unset($attachments[$key]);
}
}
if (!count($attachments)) {
return 0;
}
if ($this->notice->getProfile()->isSilenced()) {
// TRANS: Message for inline attachments list in notices when the author has been silenced.
$this->element('div', ['class' => 'error'],
_('Attachments are hidden because this profile has been silenced.'));
return 0;
}
$this->showListStart();
foreach ($attachments as $att) {
$item = $this->newListItem($att);
$item->show();
}
$this->showListEnd();
return count($attachments);
}
public function showListStart()
{
$this->out->elementStart('ol', ['class' => 'attachments']);
}
public function showListEnd()
{
$this->out->elementEnd('ol');
}
/**
* returns a new list item for the current attachment
*
* @param File $attachment the current attachment
*
* @return AttachmentListItem a list item for displaying the attachment
*/
public function newListItem(File $attachment)
{
return new AttachmentListItem($attachment, $this->out);
}
}

289
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<?php
/**
* StatusNet, the distributed open-source microblogging tool
*
* widget for displaying a list of notice attachments
*
* 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 UI
* @package StatusNet
*
* @author Evan Prodromou <evan@status.net>
* @author Sarven Capadisli <csarven@status.net>
* @copyright 2008 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
*
* @see http://status.net/
*/
namespace Plugin\Media\media;
/**
* widget for displaying a single notice
*
* This widget has the core smarts for showing a single notice: what to display,
* where, and under which circumstances. Its key method is show(); this is a recipe
* that calls all the other show*() methods to build up a single notice. The
* ProfileNoticeListItem subclass, for example, overrides showAuthor() to skip
* author info (since that's implicit by the data in the page).
*
* @category UI
* @package StatusNet
*
* @author Evan Prodromou <evan@status.net>
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
*
* @see http://status.net/
* @see NoticeList
* @see ProfileNoticeListItem
*/
class AttachmentListItem
{
/** The attachment this item will show. */
public $attachment;
/**
* @param File $attachment the attachment we will display
*/
// function __construct(File $attachment, $out=null)
// {
// // parent::__construct($out);
// $this->attachment = $attachment;
// }
public function title()
{
return $this->attachment->getTitle() ?: MediaFile::getDisplayName($this->attachment);
}
public function linkTitle()
{
return $this->title();
}
/**
* recipe function for displaying a single notice.
*
* This uses all the other methods to correctly display a notice. Override
* it or one of the others to fine-tune the output.
*
* @return void
*/
public function show()
{
$this->showStart();
try {
$this->showNoticeAttachment();
} catch (Exception $e) {
$this->element('div', ['class' => 'error'], $e->getMessage());
common_debug($e->getMessage());
}
$this->showEnd();
}
function linkAttr() {
return [
'class' => 'u-url',
'href' => $this->attachment->getAttachmentDownloadUrl(),
'title' => $this->linkTitle()
];
}
public function showNoticeAttachment()
{
$this->showRepresentation();
}
/**
* Show in HTML
*/
public function showRepresentation()
{
$enclosure = $this->attachment->getEnclosure();
if (Event::handle('StartShowAttachmentRepresentation', [$this->out, $this->attachment])) {
$this->out->elementStart('label');
$this->out->element('a', ['rel' => 'external', 'href' => $this->attachment->getAttachmentUrl()], $this->title());
$this->out->elementEnd('label');
$this->out->element('br');
try {
if (!empty($enclosure->mimetype)) {
// First, prepare a thumbnail if it exists.
try {
// Tell getThumbnail that we can show an animated image if it has one (4th arg, "force_still")
$thumb = File_thumbnail::fromFileObject($this->attachment, null, null, false, false);
} catch (UseFileAsThumbnailException|UnsupportedMediaException|FileNotFoundException|ServerException $e) {
common_debug("AttachmentListItem couldn't find a thumbnail for {$this->attachment->getID()} because {$e->getMessage()}");
// This remote file has no local thumbnail.
$thumb = null;
}
// Then get the kind of mediatype we're dealing with
$mediatype = common_get_mime_media($enclosure->mimetype);
// FIXME: Get proper mime recognition of Ogg files! If system has 'mediainfo', this should do it:
// $ mediainfo --inform='General;%InternetMediaType%'
if ($this->attachment->mimetype === 'application/ogg') {
$mediatype = 'video'; // because this element can handle Ogg/Vorbis etc. on its own
}
// Ugly hack to show text/html links which have a thumbnail (such as from oEmbed/OpenGraph image URLs)
if (!in_array($mediatype, ['image', 'audio', 'video']) && $thumb instanceof File_thumbnail) {
$mediatype = 'image';
}
switch ($mediatype) {
// Anything we understand as an image, if we need special treatment, do it in StartShowAttachmentRepresentation
case 'image':
if ($thumb instanceof File_thumbnail) {
$this->out->element('img', $thumb->getHtmlAttrs(['class' => 'u-photo', 'alt' => '']));
} else {
try {
// getUrl(true) because we don't want to hotlink, could be made configurable
$this->out->element('img', ['class' => 'u-photo',
'src' => $this->attachment->getUrl(true),
'alt' => $this->attachment->getTitle()]);
} catch (FileNotStoredLocallyException $e) {
$url = $e->file->getUrl(false);
$this->out->element('a', ['href' => $url, 'rel' => 'external'], $url);
}
}
unset($thumb); // there's no need carrying this along after this
break;
// HTML5 media elements
case 'audio':
case 'video':
if ($thumb instanceof File_thumbnail) {
$poster = $thumb->getUrl();
unset($thumb); // there's no need carrying this along after this
} else {
$poster = null;
}
$this->out->elementStart($mediatype,
array('class' => "attachment_player u-{$mediatype}",
'poster' => $poster,
'controls' => 'controls'));
$this->out->element('source',
array('src' => $this->attachment->getUrl(),
'type' => $this->attachment->mimetype));
$this->out->elementEnd($mediatype);
break;
default:
unset($thumb); // there's no need carrying this along
switch (common_bare_mime($this->attachment->mimetype)) {
case 'text/plain':
$this->element('div', ['class' => 'e-content plaintext'],
file_get_contents($this->attachment->getPath()));
break;
case 'text/html':
if (!empty($this->attachment->filename)
&& (GNUsocial::isAjax() || common_config('attachments', 'show_html'))) {
// Locally-uploaded HTML. Scrub and display inline.
$this->showHtmlFile($this->attachment);
break;
}
// Fall through to default if it wasn't a _local_ text/html File object
default:
Event::handle('ShowUnsupportedAttachmentRepresentation', array($this->out, $this->attachment));
}
}
} else {
Event::handle('ShowUnsupportedAttachmentRepresentation', array($this->out, $this->attachment));
}
} catch (FileNotFoundException $e) {
if (!$this->attachment->isLocal()) {
throw $e;
}
}
}
Event::handle('EndShowAttachmentRepresentation', [$this->out, $this->attachment]);
}
protected function showHtmlFile(File $attachment)
{
$body = $this->scrubHtmlFile($attachment);
if ($body) {
$this->out->raw($body);
}
}
/**
* @return mixed false on failure, HTML fragment string on success
*/
protected function scrubHtmlFile(File $attachment)
{
$path = $attachment->getPath();
$raw = file_get_contents($path);
// Normalize...
$dom = new DOMDocument();
if (!$dom->loadHTML($raw)) {
common_log(LOG_ERR, "Bad HTML in local HTML attachment {$path}");
return false;
}
// Remove <script>s or htmlawed will dump their contents into output!
// Note: removing child nodes while iterating seems to mess things up,
// hence the double loop.
$scripts = [];
foreach ($dom->getElementsByTagName('script') as $script) {
$scripts[] = $script;
}
foreach ($scripts as $script) {
common_log(LOG_DEBUG, $script->textContent);
$script->parentNode->removeChild($script);
}
// Trim out everything outside the body...
$body = $dom->saveHTML();
$body = preg_replace('/^.*<body[^>]*>/is', '', $body);
$body = preg_replace('/<\/body[^>]*>.*$/is', '', $body);
require_once INSTALLDIR . '/extlib/HTMLPurifier/HTMLPurifier.auto.php';
$purifier = new HTMLPurifier();
return $purifier->purify($body);
}
/**
* start a single notice.
*
* @return void
*/
public function showStart()
{
// XXX: RDFa
// TODO: add notice_type class e.g., notice_video, notice_image
$this->out->elementStart('li');
}
/**
* finish the notice
*
* Close the last elements in the notice list item
*
* @return void
*/
public function showEnd()
{
$this->out->elementEnd('li');
}
}

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<?php
// This file is part of GNU social - https://www.gnu.org/software/social
//
// GNU social 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.
//
// GNU social 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 GNU social. If not, see <http://www.gnu.org/licenses/>.
/**
* FIXME
*
* @category Widget
* @package GNUsocial
*
* @author Evan Prodromou <evan@status.net>
* @copyright 2009 StatusNet, Inc.
* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
*/
namespace Plugin\Media\media;
/**
* FIXME
*
* These are the widgets that show interesting data about a person * group, or site.
*
* @category Widget
* @package GNUsocial
*
* @author Evan Prodromou <evan@status.net>
* @copyright 2009 StatusNet, Inc.
* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
*/
class AttachmentNoticeSection // extends NoticeSection
{
public function showContent()
{
// parent::showContent();
return false;
}
public function getNotices()
{
$notice = new Notice;
$notice->joinAdd(['id', 'file_to_post:post_id']);
$notice->whereAdd(sprintf('file_to_post.file_id = %d', $this->out->attachment->id));
$notice->selectAdd('notice.id');
$notice->orderBy('notice.created DESC, notice.id DESC');
$notice->find();
return $notice;
}
public function title()
{
// TRANS: Title.
return _('Notices where this attachment appears');
}
public function divId()
{
return 'attachment_section';
}
}

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<?php
/**
* StatusNet, the distributed open-source microblogging tool
*
* widget for displaying notice attachments thumbnails
*
* 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 UI
* @package StatusNet
*
* @author Brion Vibber <brion@status.net>
* @copyright 2010 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
*
* @see http://status.net/
*/
namespace Plugin\Media\media;
class InlineAttachmentList extends AttachmentList
{
public function showListStart()
{
$this->out->element('h4', 'attachments-title', _('Attachments'));
parent::showListStart();
}
/**
* returns a new list item for the current attachment
*
* @param File $notice the current attachment
*
* @return ListItem a list item for displaying the attachment
*/
public function newListItem(File $attachment)
{
return new InlineAttachmentListItem($attachment, $this->out);
}
}

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<?php
/**
* StatusNet, the distributed open-source microblogging tool
*
* widget for displaying notice attachments thumbnails
*
* 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 UI
* @package StatusNet
*
* @author Brion Vibber <brion@status.net>
* @copyright 2010 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
*
* @see http://status.net/
*/
namespace Plugin\Media\media;
class InlineAttachmentListItem extends AttachmentListItem
{
/**
* start a single notice.
*
* @return void
*/
public function showStart()
{
// XXX: RDFa
// TODO: add notice_type class e.g., notice_video, notice_image
$this->out->elementStart('li',
[
'class' => 'inline-attachment',
'id' => 'attachment-' . $this->attachment->getID(),
]
);
}
/**
* finish the notice
*
* Close the last elements in the notice list item
*
* @return void
*/
public function showEnd()
{
$this->out->elementEnd('li');
}
}