- if ($width === null) {
- $width = common_config('thumbnail', 'width');
- $height = common_config('thumbnail', 'height');
- $crop = common_config('thumbnail', 'crop');
- }
-
- if ($height === null) {
- $height = $width;
- $crop = true;
- }
-
- // Get proper aspect ratio width and height before lookup
- // We have to do it through an ImageFile object because of orientation etc.
- // Only other solution would've been to rotate + rewrite uploaded files.
- list($width, $height, $x, $y, $w, $h) =
- $image->scaleToFit($width, $height, $crop);
-
- $params = array('file_id'=> $this->id,
- 'width' => $width,
- 'height' => $height);
- $thumb = File_thumbnail::pkeyGet($params);
- if ($thumb instanceof File_thumbnail) {
- return $thumb;
- }
-
- // throws exception on failure to generate thumbnail
- $outname = "thumb-{$width}x{$height}-{$image->filename}." . File::guessMimeExtension($image->mimetype);
- $outpath = self::path($outname);
-
- // The boundary box for our resizing
- $box = array('width'=>$width, 'height'=>$height,
- 'x'=>$x, 'y'=>$y,
- 'w'=>$w, 'h'=>$h);
-
- // Doublecheck that parameters are sane and integers.
- if ($box['width'] < 1 || $box['width'] > common_config('thumbnail', 'maxsize')
- || $box['height'] < 1 || $box['height'] > common_config('thumbnail', 'maxsize')
- || $box['w'] < 1 || $box['x'] >= $image->width
- || $box['h'] < 1 || $box['y'] >= $image->height) {
- // Fail on bad width parameter. If this occurs, it's due to algorithm in ImageFile->scaleToFit
- common_debug("Boundary box parameters for resize of {$image->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->id, $width, $height));
- // Perform resize and store into file
- $image->resizeTo($outpath, $box);
-
- // Avoid deleting the original
- if ($image->getPath() != self::path($image->filename)) {
- $image->unlink();
- }
- return File_thumbnail::saveThumbnail($this->id,
- self::url($outname),
- $width, $height,
- $outname);