Example #1
0
 public static String getImageThumbnailUrl(Utility.ArenaImage blob)
 {
     /*
      * // This is used for ensuring we have a different URL for each image to
      * // workaround caches
      * byte[] hash = MD5.Create().ComputeHash(blob.ByteArray);
      * // step 2, convert byte array to hex string
      * StringBuilder sb = new StringBuilder();
      * for (int i = 0; i < hash.Length; i++)
      * {
      *  sb.Append(hash[i].ToString("X2"));
      * }
      * return blob.ThumbnailUrl(200, 200, 200) + "&" + sb.ToString();
      */
     return(blob.ThumbnailUrl(200, 200, 200));
 }
        public Arena.Services.Contracts.ModifyResult UpdateSmallGroupPhoto(System.IO.Stream stream, int id)
        {
            try
            {
                Arena.SmallGroup.Group group = new Arena.SmallGroup.Group(id);

                Boolean accessDenied = false;
                // If this person isn't the outright leader and they don't have edit access
                if (group.Leader.PersonID != ArenaContext.Current.Person.PersonID &&
                    RestApi.GroupClusterOperationAllowed(ArenaContext.Current.Person.PersonID, group.GroupClusterID, OperationType.Edit) == false)
                {

                    accessDenied = true;

                    // Do a deeper dive into each member of the group
                    foreach (GroupMember gm in group.Members)
                    {
                        if (gm.Active && gm.Role.Value == "Leader")
                        {
                            accessDenied = false;
                            break;
                        }
                    }
                }
                if (accessDenied)
                {
                    throw new Exception("Access denied.");
                }

                MultipartParser parser = new MultipartParser(stream);
                if (parser.Success)
                {

                    // Make sure this is a real image
                    MemoryStream ms = new MemoryStream(parser.FileContents);
                    String myStream = Encoding.ASCII.GetString(ms.ToArray());
                    Image image = Image.FromStream(ms);

                    ImageCodecInfo[] codecs = ImageCodecInfo.GetImageEncoders();
                    ImageCodecInfo codec = codecs.First(c => c.FormatID == image.RawFormat.Guid);

                    // If we have an existing image, delete it
                    if (group.ImageBlob.BlobID > 0)
                    {
                        group.ImageBlob.Delete();
                    }

                    // Create a new file
                    Utility.ArenaImage arenaImage = new Utility.ArenaImage();

                    // Update everything
                    arenaImage.ByteArray = parser.FileContents;
                    arenaImage.MimeType = codec.MimeType;
                    arenaImage.OriginalFileName = Path.GetFileNameWithoutExtension(parser.Filename) + "." + codec.FormatDescription.ToLower().Replace("jpeg", "jpg");
                    arenaImage.FileExtension = codec.FormatDescription.ToLower().Replace("jpeg", "jpg");

                    // Save the file
                    group.ImageBlob = arenaImage;
                    group.ImageBlob.Save(ArenaContext.Current.User.Identity.Name);
                    group.Save(ArenaContext.Current.User.Identity.Name);
                }

                return new Services.Contracts.ModifyResult()
                {
                    Link = Contracts.SmallGroupMapper.getImageThumbnailUrl(group.ImageBlob),
                    Successful = true.ToString()
                };
            }
            catch (Exception ex)
            {
                return new Services.Contracts.ModifyResult()
                {
                    Successful = false.ToString(),
                    ErrorMessage = string.Format("{0} - {1}", ex.GetType().ToString(), ex.Message)
                };
            }
        }
Example #3
0
        public Arena.Services.Contracts.ModifyResult UpdateSmallGroupPhoto(System.IO.Stream stream, int id)
        {
            try
            {
                Arena.SmallGroup.Group group = new Arena.SmallGroup.Group(id);

                Boolean accessDenied = false;
                // If this person isn't the outright leader and they don't have edit access
                if (group.Leader.PersonID != ArenaContext.Current.Person.PersonID &&
                    RestApi.GroupClusterOperationAllowed(ArenaContext.Current.Person.PersonID, group.GroupClusterID, OperationType.Edit) == false)
                {
                    accessDenied = true;

                    // Do a deeper dive into each member of the group
                    foreach (GroupMember gm in group.Members)
                    {
                        if (gm.Active && gm.Role.Value == "Leader")
                        {
                            accessDenied = false;
                            break;
                        }
                    }
                }
                if (accessDenied)
                {
                    throw new Exception("Access denied.");
                }

                MultipartParser parser = new MultipartParser(stream);
                if (parser.Success)
                {
                    // Make sure this is a real image
                    MemoryStream ms       = new MemoryStream(parser.FileContents);
                    String       myStream = Encoding.ASCII.GetString(ms.ToArray());
                    Image        image    = Image.FromStream(ms);

                    ImageCodecInfo[] codecs = ImageCodecInfo.GetImageEncoders();
                    ImageCodecInfo   codec  = codecs.First(c => c.FormatID == image.RawFormat.Guid);

                    // If we have an existing image, delete it
                    if (group.ImageBlob.BlobID > 0)
                    {
                        group.ImageBlob.Delete();
                    }

                    // Create a new file
                    Utility.ArenaImage arenaImage = new Utility.ArenaImage();

                    // Update everything
                    arenaImage.ByteArray        = parser.FileContents;
                    arenaImage.MimeType         = codec.MimeType;
                    arenaImage.OriginalFileName = Path.GetFileNameWithoutExtension(parser.Filename) + "." + codec.FormatDescription.ToLower().Replace("jpeg", "jpg");
                    arenaImage.FileExtension    = codec.FormatDescription.ToLower().Replace("jpeg", "jpg");

                    // Save the file
                    group.ImageBlob = arenaImage;
                    group.ImageBlob.Save(ArenaContext.Current.User.Identity.Name);
                    group.Save(ArenaContext.Current.User.Identity.Name);
                }

                return(new Services.Contracts.ModifyResult()
                {
                    Link = Contracts.SmallGroupMapper.getImageThumbnailUrl(group.ImageBlob),
                    Successful = true.ToString()
                });
            }
            catch (Exception ex)
            {
                return(new Services.Contracts.ModifyResult()
                {
                    Successful = false.ToString(),
                    ErrorMessage = string.Format("{0} - {1}", ex.GetType().ToString(), ex.Message)
                });
            }
        }