/// <summary>
/// Delete a comment
/// </summary>
protected override void InternalDELETE(HttpContext context, HandlerTimedCache cache)
{
var user = UserHelper.GetUser(context.User.Identity.Name);
var commentId = WebUtil.ParseIntParam(context, "commentId");
Action doDelete = () => Comment.ById(commentId).Delete(user);
ModifyComment(context, doDelete);
}
/// <summary>
/// Partial edits to a comment, if authorized
/// </summary>
/// <param name="context"></param>
/// <param name="cache"></param>
protected override void InternalPOST(HttpContext context, HandlerTimedCache cache)
{
var user = UserHelper.GetUser(context.User.Identity.Name);
var commentId = WebUtil.ParseIntParam(context, "commentId");
var accessLevel = WebUtil.ParseEnumParam <CommentAccessLevel>(context, "level");
var text = WebUtil.GetParam(context, "text", true);
var removeImage = WebUtil.ParseBoolParam(context, "removeImage");
var image = InputStreamToByteArray(context);
Action doEdit = () => Comment.ById(commentId).Update(user, text, image, removeImage, accessLevel);
ModifyComment(context, doEdit);
}
/// <summary>
/// For a given comment id, return the image
/// If there is no image associated, a 404
/// Expects:
/// id: string, comment id
/// thumb: bool, optional render as thumbnail
/// </summary>
protected override void InternalGET(HttpContext context, HandlerTimedCache cache)
{
var user = UserHelper.GetUser(context.User.Identity.Name);
var thumb = false;
WebUtil.ParseOptionalBoolParam(context, "thumb", ref thumb);
// Default to 100x100 if in thumbnail mode, but can override.
var width = THUMB_WIDTH;
WebUtil.ParseOptionalIntParam(context, "w", ref width);
var height = THUMB_HEIGHT;
WebUtil.ParseOptionalIntParam(context, "h", ref height);
var id = WebUtil.ParseIntParam(context, "id");
try
{
var comment = Comment.ById(id);
if (!comment.HasPicture)
{
throw new CommentNotFoundException();
}
if (comment.IsAuthorizedToView(user))
{
var img = comment.Image;
var format = GetImageFormat(img);
context.Response.ContentType = String.Format("image/{0}", format);
if (thumb)
{
var ms = new MemoryStream();
ms.Write(img, 0, img.Length);
var b = new Bitmap(ms);
var thumbnail = b.GetThumbnailImage(width, height, () => false, IntPtr.Zero);
var outStream = new MemoryStream();
thumbnail.Save(outStream, format);
img = outStream.ToArray();
}
context.Response.BinaryWrite(img);
return;
}
context.Response.StatusCode = (int)HttpStatusCode.Forbidden;
}
catch (CommentNotFoundException)
{
context.Response.StatusCode = (int)HttpStatusCode.NotFound;
}
}
