public static async Task <HttpResponseMessage> Run([HttpTrigger(AuthorizationLevel.Anonymous, "get", "post", Route = "api/Generate/Image")] HttpRequestMessage request, TraceWriter log, ExecutionContext context)
{
if (IsAuthenticated)
{
auth = request.GetAuthInfoAsync(log).Result;
}
log.Info("Is Authenticated: " + IsAuthenticated);
//We can zip a bunch of them
var generator = new UrlGenerator(new Uri(QrCodeUrl), 1);
var guid = generator.Guids.First();
//Create Blob/Table references
var wallPath = string.Format($"{guid.ToString("N")}/wall");
var wallblob = BlobStorage.GetBlob(Constants.BlobContainerNames.Wall, wallPath);
var contents = new WallEntity(new Message()
{
Text = Constants.Default.Wall.WelcomeMessage, Username = Constants.Default.Wall.User
});
var json = JsonConvert.SerializeObject(contents);
wallblob.UploadText(json);
if (IsAuthenticated)
{
var name = auth.GetClaim(ClaimTypes.Name).Value;
var nameId = auth.GetClaim(ClaimTypes.NameIdentifier).Value;
var user = new Users(name, nameId);
TableStorage.Insert(Constants.TableNames.Users, user);
var trackedWall = new Tracked(nameId, guid.ToString("N"));
TableStorage.Insert(Constants.TableNames.Tracked, trackedWall);
}
var urls = generator.ToUri();
var bitmap = new QrCode().GenerateImage(urls.First(), 10);
var ms = new MemoryStream();
bitmap.Save(ms, ImageFormat.Png);
var logoPath = context.FunctionAppDirectory + logoLocation;
var footerPath = context.FunctionAppDirectory + footerLocation;
var logo = new Logo(logoPath);
var footer = new Logo(footerPath);
ms.Position = 0;
var qrCodeWithLogo = logo.Image.AppendImage(Image.FromStream(ms), 10, 10);
ms.Position = 0;
var footerImage = qrCodeWithLogo.AppendImage(footer.Image, 0, 0);
var result = footerImage.WriteText(guid.ToString("N").Substring(0, 5), new PointF(40, footerImage.Height - 160));
var msreadathon = new MemoryStream();
ImageCodecInfo jpgEncoder = GetEncoder(ImageFormat.Jpeg);
Encoder myEncoder = Encoder.Quality;
EncoderParameters myEncoderParameters = new EncoderParameters(1);
EncoderParameter myEncoderParameter = new EncoderParameter(myEncoder, 100L);
myEncoderParameters.Param[0] = myEncoderParameter;
result.Save(msreadathon, jpgEncoder, myEncoderParameters);
//Save image to blob
var qrCodePath = string.Format($"{guid.ToString("N")}/qrCode");
var container = BlobStorage.GetContainer(Constants.BlobContainerNames.Wall);
var qrCodeBlob = container.GetBlockBlobReference(qrCodePath);
qrCodeBlob.Properties.ContentType = "image/png";
ms.Position = 0;
qrCodeBlob.UploadFromStream(ms);
log.Info("Image uploaded to: " + qrCodeBlob.Uri.AbsoluteUri);
var response = new HttpResponseMessage(HttpStatusCode.OK);
response.Content = new ByteArrayContent(msreadathon.ToArray());
response.Content.Headers.ContentDisposition = new ContentDispositionHeaderValue(CONTENT_DISPOSITION_TYPE);
response.Content.Headers.ContentDisposition.FileName = FILENAME;
response.Content.Headers.ContentType = new MediaTypeHeaderValue(MEDIA_TYPE);
return(response);
}