forked from GNUsocial/gnu-social
1371e3efb8
WebP format is now the default image format for anything that is not an animated GIF. Image Intervention doesn't support animated WebPs so we don't convert animated GIFs. ImageFile: MediaFile: default: - Add WebP support
691 lines
24 KiB
PHP
691 lines
24 KiB
PHP
<?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
|
|
*/
|
|
defined('GNUSOCIAL') || die();
|
|
|
|
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
|
|
}
|
|
|
|
/**
|
|
* Create a thumbnail from a file object
|
|
*
|
|
* @param File $file
|
|
* @return ImageFile
|
|
* @throws FileNotFoundException
|
|
* @throws UnsupportedMediaException
|
|
* @throws UseFileAsThumbnailException
|
|
*/
|
|
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.'), $file->getPath());
|
|
}
|
|
|
|
if (!empty($file->filename)) {
|
|
$imgPath = $file->getPath();
|
|
}
|
|
}
|
|
|
|
if (!file_exists($imgPath)) {
|
|
throw new FileNotFoundException($imgPath);
|
|
}
|
|
|
|
try {
|
|
$image = new self($file->getID(), $imgPath);
|
|
} catch (Exception $e) {
|
|
// Avoid deleting the original
|
|
try {
|
|
if (strlen($imgPath) > 0 && $imgPath !== $file->getPath()) {
|
|
common_debug(__METHOD__ . ': Deleting temporary file that was created as image file' .
|
|
'thumbnail source: ' . _ve($imgPath));
|
|
@unlink($imgPath);
|
|
}
|
|
} catch (FileNotFoundException $e) {
|
|
// File reported (via getPath) that the original file
|
|
// doesn't exist anyway, so it's safe to delete $imgPath
|
|
@unlink($imgPath);
|
|
}
|
|
common_debug(sprintf(
|
|
'Exception %s caught when creating ImageFile for File id==%s ' .
|
|
'and imgPath==%s: %s',
|
|
get_class($e),
|
|
_ve($file->id),
|
|
_ve($imgPath),
|
|
_ve($e->getMessage())
|
|
));
|
|
throw $e;
|
|
}
|
|
return $image;
|
|
}
|
|
|
|
public function getPath()
|
|
{
|
|
if (!file_exists($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
|
|
*
|
|
* @return ImageFile
|
|
* @throws NoResultException
|
|
* @throws NoUploadedMediaException
|
|
* @throws ServerException
|
|
* @throws UnsupportedMediaException
|
|
* @throws UseFileAsThumbnailException
|
|
*
|
|
* @throws ClientException
|
|
*/
|
|
public static function fromUpload(string $param = 'upload', ?Profile $scoped = null): self
|
|
{
|
|
$mediafile = parent::fromUpload($param, $scoped);
|
|
if ($mediafile instanceof self) {
|
|
return $mediafile;
|
|
} else {
|
|
// 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);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Process a file upload
|
|
*
|
|
* 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
|
|
* @return ImageFile
|
|
* @throws ClientException
|
|
* @throws FileNotFoundException
|
|
* @throws InvalidFilenameException
|
|
* @throws NoResultException
|
|
* @throws ServerException
|
|
* @throws UnsupportedMediaException
|
|
* @throws UseFileAsThumbnailException
|
|
*/
|
|
public static function fromUrl(string $url, ?Profile $scoped = null, ?string $name = null): self
|
|
{
|
|
$mediafile = parent::fromUrl($url, $scoped, $name);
|
|
if ($mediafile instanceof self) {
|
|
return $mediafile;
|
|
} else {
|
|
// 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 $outpath
|
|
*
|
|
* @return ImageFile the image stored at target path
|
|
* @throws NoResultException
|
|
* @throws ServerException
|
|
* @throws UnsupportedMediaException
|
|
* @throws UseFileAsThumbnailException
|
|
*
|
|
* @throws ClientException
|
|
*/
|
|
public function copyTo($outpath)
|
|
{
|
|
return new self(null, $this->resizeTo($outpath));
|
|
}
|
|
|
|
/**
|
|
* Create and save a thumbnail image.
|
|
*
|
|
* @param string $outpath
|
|
* @param array $box width, height, boundary box (x,y,w,h) defaults to full image
|
|
*
|
|
* @return string full local filesystem filename
|
|
* @return string full local filesystem filename
|
|
* @throws UnsupportedMediaException
|
|
* @throws UseFileAsThumbnailException
|
|
*
|
|
*/
|
|
public function resizeTo($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 $outpath;
|
|
}
|
|
|
|
public function unlink()
|
|
{
|
|
@unlink($this->filepath);
|
|
}
|
|
|
|
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
|
|
*
|
|
* @return array
|
|
* @throws ServerException
|
|
*
|
|
*/
|
|
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 $count >= 1; // number of animated frames apart from the original image
|
|
}
|
|
|
|
public function getFileThumbnail($width, $height, $crop, $upscale = false)
|
|
{
|
|
if (!$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(),
|
|
// no url since we generated it ourselves and can dynamically
|
|
// generate the url
|
|
null,
|
|
$width,
|
|
$height,
|
|
$outname
|
|
);
|
|
}
|
|
}
|