Created
August 19, 2015 09:27
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Gets a Gravitar image and returns the image as a 64bit string, or null if there is no image available
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| void Main() | |
| { | |
| Console.WriteLine(getGravitarImage("jamieroos1@googlemail.com")); | |
| } | |
| string getGravitarImage(string email) | |
| { | |
| MD5 md5hasher = MD5.Create(); | |
| byte[] data = md5hasher.ComputeHash(Encoding.Default.GetBytes(email.Trim().ToLower())); | |
| StringBuilder builder = new StringBuilder(); | |
| foreach (var i in data) | |
| builder.Append(i.ToString("x2")); | |
| var gravitarHash = builder.ToString(); | |
| // GET parameters | |
| // r = rating, g = G rated (suitable for all) | |
| // d = image returned when there isn't an image for the email hash | |
| // 404 = return a 404 when there is no image | |
| var url = string.Format("http://www.gravatar.com/avatar/{0}?r=g&d=404", gravitarHash); | |
| var imageBytes = getImageFromUrl(url); | |
| return imageBytes != null ? Convert.ToBase64String(imageBytes) : null; | |
| } | |
| byte[] getImageFromUrl(string url) | |
| { | |
| byte[] buffer; | |
| Stream stream = null; | |
| try | |
| { | |
| HttpWebRequest req = WebRequest.Create(url) as HttpWebRequest; | |
| HttpWebResponse response = req.GetResponse() as HttpWebResponse; | |
| if (response.StatusCode == HttpStatusCode.NotFound) | |
| return null; | |
| stream = response.GetResponseStream(); | |
| using (BinaryReader reader = new BinaryReader(stream)) | |
| { | |
| buffer = reader.ReadBytes((int)response.ContentLength); | |
| reader.Close(); | |
| } | |
| } | |
| catch | |
| { | |
| buffer = null; | |
| } | |
| return buffer; | |
| } |
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