Share Your Pride With Twilio MMS and Pridefy.com

public static Bitmap ChangeOpacity(Image img, float opacityvalue)
        {
            Bitmap bmp = new Bitmap(img.Width, img.Height);
            Graphics graphics = Graphics.FromImage(bmp);
            ColorMatrix colormatrix = new ColorMatrix();
            colormatrix.Matrix33 = opacityvalue;
            ImageAttributes imgAttribute = new ImageAttributes();
            imgAttribute.SetColorMatrix(colormatrix, ColorMatrixFlag.Default, ColorAdjustType.Bitmap);
            graphics.DrawImage(img, new Rectangle(0, 0, bmp.Width, bmp.Height), 0, 0, img.Width, img.Height, GraphicsUnit.Pixel, imgAttribute);
            graphics.Dispose();  
            return bmp;
        }

public static Image ScaleImage(Image image, int maxWidth, int maxHeight)
{
var ratioX = (double)maxWidth / image.Width;
var ratioY = (double)maxHeight / image.Height;
var ratio = Math.Min(ratioX, ratioY);
 
var newWidth = (int)(image.Width * ratio);
var newImage = new Bitmap(newWidth, maxHeight);//
Graphics.FromImage(newImage).DrawImage(image, 0, 0, newWidth, maxHeight);//
return newImage;
}

private static Image CreateBlendedImage(string backgroundimageurl)
{
Image imageBackground;
Image imageOverlay;
var request = WebRequest.Create(backgroundimageurl);
using (var response = request.GetResponse())
using (var stream = response.GetResponseStream())
{
imageBackground = Bitmap.FromStream(stream);
}
var request2 = WebRequest.Create("http://c1.staticflickr.com/1/286/19041020628_2657a057cc_k.jpg"); //Rainbow Flag
using (var response2 = request2.GetResponse())
using (var stream2 = response2.GetResponseStream())
{
imageOverlay = Bitmap.FromStream(stream2);
}
 
imageOverlay = ChangeOpacity(imageOverlay, 0.5F);
imageOverlay = ScaleImage(imageOverlay, imageBackground.Width, imageBackground.Height);
imageOverlay = imageOverlay.GetThumbnailImage(imageBackground.Width, imageBackground.Height, null, IntPtr.Zero);
 
Image img = new Bitmap(imageBackground.Width, imageBackground.Height);
using (Graphics gr = Graphics.FromImage(img))
{
gr.DrawImage(imageBackground, new Point(0, 0));
gr.DrawImage(imageOverlay, new Point(0, 0));
}
return img;
}

//Reminder this class needs to inherit from TwilioController --> public class MMSController : TwilioController
public ActionResult Index(string from, string mediaurl0)
{
Image blended = CreateBlendedImage(mediaurl0);
//We are using Azure Storage, and loading our credentials from our config file
CloudStorageAccount storageAccount = CloudStorageAccount.Parse(ConfigurationManager.AppSettings["<CONNECTIONKEY>"].ToString());
// Create the blob client
CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient();
// Retrieve a reference to a container.
CloudBlobContainer container = blobClient.GetContainerReference("<CONTAINERNAME>");
//Allow public access to the blob (but not to the container)
container.SetPermissions(new BlobContainerPermissions {PublicAccess = BlobContainerPublicAccessType.Blob });
// Create the container if it doesn't already exist.
container.CreateIfNotExists();
// Retrieve reference to a blob names using the from phone number.
//We add the png file extension so its easier for us when looking at a list of blobs
CloudBlockBlob blockBlob = container.GetBlockBlobReference(from + ".png");
// Create or overwrite the phone mumber blob with contents from a local file.
//We re using temp file space for file creation
var filepath = System.IO.Path.GetTempFileName();
blended.Save(filepath, ImageFormat.Png);
//remmeber to set the Content Type, else Azure will return appliction/octet and Twilio won't be able to read the image
blockBlob.Properties.ContentType = "image/png";
//Upload the file to Azure storage
blockBlob.UploadFromFile(filepath, FileMode.Open);
//Create th Twilio TwiML markup response
var response = new TwilioResponse();
string[] mediaurls = new string[1];
//For some reason only http worked for me
mediaurls[0] = blockBlob.Uri.AbsoluteUri.Replace("https://","http
//Add the Blended Image URL from Azure to the response
response.Message(mediaurls);
//Note how we return a TwiML respone and not a View
return TwiML(response);
}