private function createAndUploadImageDimensionMap(Image $image, $dimensionsKeyname)
{
$imd = $this->getDimensionByKeyname($dimensionsKeyname);
$srcPth = $this->imagesRoot . $image->FilePath;
if (file_exists($srcPth)) {
$tempPath = tempnam(sys_get_temp_dir(), 'img_');
if ($dimensionsKeyname == 'original') {
$s3Path = $srcPth;
$pts = getimagesize($s3Path);
$width = $pts[0];
$height = $pts[1];
$newDims = array('x' => $width, 'y' => $height);
$s3Path = $srcPth;
} else {
//need to redimension this image, using MagickWand
$magick_wand = NewMagickWand();
MagickReadImage($magick_wand, $srcPth);
$width = MagickGetImageWidth($magick_wand);
$height = MagickGetImageHeight($magick_wand);
$newDims = $this->getNewDimensionsPreservingAspectRatio($width, $height, $imd->Width, $imd->Height);
MagickScaleImage($magick_wand, $newDims['x'], $newDims['y']);
MagickWriteImage($magick_wand, $tempPath);
$s3Path = $tempPath;
}
$headers = array();
//This holds the http headers for our S3 object.
switch ($image->ImageType) {
case 'GIF':
$headers['Content-Type'] = 'image/gif';
break;
case 'JPG':
$headers['Content-Type'] = 'image/jpeg';
break;
case 'PNG':
$headers['Content-Type'] = 'image/png';
break;
default:
throw new Exception("Unrecognized type {$image->getType()}");
break;
}
//A "Far Future" expiration - maximizing the chance that the user's web browser will use
//a cached version rather than requesting the file from Cloudfront.
//Also set to public (as recommended by Google Speed Tracer), so that caching will work when
//using SSL as well. Even though Cloudfont doesn't support ssl today, someday it will
//and we will be prepared!
$headers['Cache-Control'] = 'public, max-age=315360000';
//10 years
$imDimMap = new ImageDimensionsMap();
$imDimMap->ImageId = $image->Id;
$imDimMap->ImageDimensionsId = $imd->Id;
$imDimMap->Width = $newDims['x'];
$imDimMap->Height = $newDims['y'];
$imDimMap->Version = $image->Version;
$imDimMap->save();
//upload the new file to S3
try {
$acl = S3Service::ACL_PUBLIC_READ;
if (!file_exists($tempPath)) {
throw new Exception("{$tempPath} dosn't exist");
}
$res = $this->s3->putObject(S3Service::inputFile($s3Path, true), $this->bucket, $this->getPath($image, $imDimMap, $imd), $acl, array(), $headers);
if ($res) {
unlink($tempPath);
} else {
//something's wrong. Fail silently and just leave the old version if it exists.
//Don't throw an exception or raise a failure, because there's a user on the other side
//of this request waiting to see this image.
$imDimMap->Version = $imDimMap->Version - 1;
$imDimMap->save();
}
} catch (Exception $e) {
//something's wrong. Fail silently and just leave the old version if it exist.
//Don't throw an exception or raise a failure, because there's a user on the other side
//of this request waiting to see this image.
$imDimMap->Version = $imDimMap->Version - 1;
$imDimMap->save();
}
}
return $imDimMap;
}
