public IActionResult Add([FromRoute] long fileId, [FromBody] FileBlockInfo fileBlockInfo)
{
FileBlock fileBlock = _db.FileBlocks.FirstOrDefault(fb => fb.FileId == fileId && fb.Number == fileBlockInfo.Number);
using (MD5 md5Hash = MD5.Create())
{
byte[] rawContent = Convert.FromBase64String(fileBlockInfo.Value);
if (fileBlock == null) //Create new fileBlock
{
_db.FileBlocks.Add(new FileBlock()
{
FileId = fileId,
Number = fileBlockInfo.Number,
Content = rawContent,
Checksum = MD5Utils.GetMd5Hash(md5Hash, rawContent.ToString())
});
}
else //Update existing fileBlock
{
fileBlock.Content = rawContent;
fileBlock.Checksum = MD5Utils.GetMd5Hash(md5Hash, rawContent.ToString());
_db.FileBlocks.Update(fileBlock);
}
_db.SaveChanges();
}
return(StatusCode((int)HttpStatusCode.OK));
}
public static MvcHtmlString Gravatar(
this HtmlHelper htmlHelper,
string email,
int size = 80,
string defaultImage = "mm",
object htmlAttributes = null)
{
var img = new TagBuilder("img");
if (htmlAttributes != null)
{
// Get the attributes
IDictionary <string, object> attributes =
HtmlHelper.AnonymousObjectToHtmlAttributes(htmlAttributes);
// set the attributes
img.MergeAttributes(attributes);
}
img.AddCssClass("gravatar");
var hash = MD5Utils.GetMd5Hash(email.ToLower());
var encodedSize = htmlHelper.Encode(size);
var encodedDefaultImage = htmlHelper.Encode(defaultImage);
var url = $"//gravatar.com/avatar/{hash}.jpg?s={encodedSize}&d={encodedDefaultImage}";
img.MergeAttribute("src", url);
return(MvcHtmlString.Create(img.ToString(TagRenderMode.SelfClosing)));
}
public static string GetMd5Hash(string str)
{
using (System.Security.Cryptography.MD5 md5hash = System.Security.Cryptography.MD5.Create())
{
string hashstr = MD5Utils.GetMd5Hash(md5hash, str);
return(hashstr);
}
}