public function persist(ImageUpload $imageupload)
{
$s3 = new S3Service($this->config);
$s3Name = $s3->persistImageUpload($imageupload);
$sns = new SNSService($this->config);
$sns->sendNotification($imageupload, $s3Name);
}
public function fetchLatestGrams()
{
$db = new DynamoDBService($this->config);
$raw = $db->getLatestGrams();
$s3 = new S3Service($this->config);
$grams = array();
foreach ($raw as $protogram) {
$ref = current($protogram['gramified']);
$grams[$ref]['uploadDate'] = current($protogram['uploadDate']);
$grams[$ref]['message'] = current($protogram['message']);
$grams[$ref]['gramified'] = $s3->getGramified($ref);
}
return $grams;
}
public function handleMessage(array $message)
{
if ($message['Type'] == 'SubscriptionConfirmation') {
$sns = new SNSService($this->config);
$sns->confirmSubscription($message);
} elseif ($message['Type'] == 'Notification') {
$s3 = new S3Service($this->config);
$url = $s3->getImageUrl($message['Subject']);
$img = $this->resizeImage($url);
$text = $img ? $this->gramifyImage($img) : 'Error!';
$textName = $s3->persistGramified($text);
$db = new DynamoDBService($this->config);
$db->persist($message['Subject'], $textName, $message['Message']);
}
}
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;
}
/**
* Get the S3 response
*
* @return object | false
*/
public function getResponse()
{
$query = '';
if (sizeof($this->parameters) > 0) {
$query = substr($this->uri, -1) !== '?' ? '?' : '&';
foreach ($this->parameters as $var => $value) {
if ($value == null || $value == '') {
$query .= $var . '&';
} else {
$query .= $var . '=' . rawurlencode($value) . '&';
}
}
$query = substr($query, 0, -1);
$this->uri .= $query;
if (array_key_exists('acl', $this->parameters) || array_key_exists('location', $this->parameters) || array_key_exists('torrent', $this->parameters) || array_key_exists('logging', $this->parameters)) {
$this->resource .= $query;
}
}
$url = (S3Service::$useSSL && extension_loaded('openssl') ? 'https://' : 'http://') . $this->headers['Host'] . $this->uri;
//var_dump($this->bucket, $this->uri, $this->resource, $url);
// Basic setup
$curl = curl_init();
curl_setopt($curl, CURLOPT_USERAGENT, 'S3/php');
if (S3Service::$useSSL) {
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, 1);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, 1);
}
curl_setopt($curl, CURLOPT_URL, $url);
// Headers
$headers = array();
$amz = array();
foreach ($this->amzHeaders as $header => $value) {
if (strlen($value) > 0) {
$headers[] = $header . ': ' . $value;
}
}
foreach ($this->headers as $header => $value) {
if (strlen($value) > 0) {
$headers[] = $header . ': ' . $value;
}
}
// Collect AMZ headers for signature
foreach ($this->amzHeaders as $header => $value) {
if (strlen($value) > 0) {
$amz[] = strtolower($header) . ':' . $value;
}
}
// AMZ headers must be sorted
if (sizeof($amz) > 0) {
sort($amz);
$amz = "\n" . implode("\n", $amz);
} else {
$amz = '';
}
// Authorization string (CloudFront stringToSign should only contain a date)
$headers[] = 'Authorization: ' . S3Service::__getSignature($this->headers['Host'] == 'cloudfront.amazonaws.com' ? $this->headers['Date'] : $this->verb . "\n" . $this->headers['Content-MD5'] . "\n" . $this->headers['Content-Type'] . "\n" . $this->headers['Date'] . $amz . "\n" . $this->resource);
curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
curl_setopt($curl, CURLOPT_HEADER, false);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, false);
curl_setopt($curl, CURLOPT_WRITEFUNCTION, array(&$this, '__responseWriteCallback'));
curl_setopt($curl, CURLOPT_HEADERFUNCTION, array(&$this, '__responseHeaderCallback'));
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
// Request types
switch ($this->verb) {
case 'GET':
break;
case 'PUT':
case 'POST':
// POST only used for CloudFront
if ($this->fp !== false) {
curl_setopt($curl, CURLOPT_PUT, true);
curl_setopt($curl, CURLOPT_INFILE, $this->fp);
if ($this->size >= 0) {
curl_setopt($curl, CURLOPT_INFILESIZE, $this->size);
}
} elseif ($this->data !== false) {
curl_setopt($curl, CURLOPT_CUSTOMREQUEST, $this->verb);
curl_setopt($curl, CURLOPT_POSTFIELDS, $this->data);
if ($this->size >= 0) {
curl_setopt($curl, CURLOPT_BUFFERSIZE, $this->size);
}
} else {
curl_setopt($curl, CURLOPT_CUSTOMREQUEST, $this->verb);
}
break;
case 'HEAD':
curl_setopt($curl, CURLOPT_CUSTOMREQUEST, 'HEAD');
curl_setopt($curl, CURLOPT_NOBODY, true);
break;
case 'DELETE':
curl_setopt($curl, CURLOPT_CUSTOMREQUEST, 'DELETE');
break;
default:
break;
}
// Execute, grab errors
if (curl_exec($curl)) {
$this->response->code = curl_getinfo($curl, CURLINFO_HTTP_CODE);
} else {
$this->response->error = array('code' => curl_errno($curl), 'message' => curl_error($curl), 'resource' => $this->resource);
}
@curl_close($curl);
// Parse body into XML
if ($this->response->error === false && isset($this->response->headers['type']) && $this->response->headers['type'] == 'application/xml' && isset($this->response->body)) {
$this->response->body = simplexml_load_string($this->response->body);
// Grab S3 errors
if (!in_array($this->response->code, array(200, 204)) && isset($this->response->body->Code, $this->response->body->Message)) {
$this->response->error = array('code' => (string) $this->response->body->Code, 'message' => (string) $this->response->body->Message);
if (isset($this->response->body->Resource)) {
$this->response->error['resource'] = (string) $this->response->body->Resource;
}
unset($this->response->body);
}
}
// Clean up file resources
if ($this->fp !== false && is_resource($this->fp)) {
fclose($this->fp);
}
return $this->response;
}
