private static Guid GetConversationId(DataAccessLayer.User sender, DataAccessLayer.User recipient)
{
int senderId = recipient.UserType == DataAccessLayer.UserType.Group ? 0 : sender.Id;
return(MessageValidator.GetConversationGuid(senderId, recipient.Id));
}
public static void Validate(this Message message, DataAccessLayer.User sender)
{
message.MessageId = Guid.NewGuid();
message.LastUpdateTimeUtcTicks = DateTime.UtcNow.Ticks;
message.PostDateTimeUtcTicks = DateTime.UtcNow.Ticks;
if (message.Sender == null || message.Sender.Id != sender.Id)
{
throw new InvalidMessageException(InvalidMessageError.InvalidSenderError);
}
if (message.Recipient == null || message.Recipient.Id == message.Sender.Id)
{
throw new InvalidMessageException(InvalidMessageError.InvalidRecipientError);
}
if (message.ConversationId != GetConversationId(message.Sender, message.Recipient) &&
message.ConversationId != Guid.Empty)
{
throw new InvalidMessageException(InvalidMessageError.InvalidSenderError);
}
if (message.ConversationId == Guid.Empty)
{
int senderId = message.Recipient.UserType == DataAccessLayer.UserType.Group ? 0 : message.SenderId;
message.ConversationId = MessageValidator.GetConversationGuid(senderId, message.RecipientId);
}
if (((message.MessageFlags & MessageFlags.Image) == MessageFlags.Image) &&
message.Image == null)
{
throw new InvalidMessageException(InvalidMessageError.ImageMissingError);
}
if (((message.MessageFlags & (MessageFlags.PollMessage | MessageFlags.Calendar)) == MessageFlags.PollMessage) &&
(message.PollOptions == null || message.PollOptions.Count == 0))
{
throw new InvalidMessageException(InvalidMessageError.InvalidPollOptionsError);
}
if (((message.MessageFlags & MessageFlags.PollResponseMessage) == MessageFlags.PollResponseMessage) &&
(message.PollMessageId == Guid.Empty))
{
throw new InvalidMessageException(InvalidMessageError.InvalidPollResponseError);
}
if ((message.MessageFlags & MessageFlags.PollResponseMessage) == MessageFlags.PollResponseMessage)
{
if (message.PollMessageId == null)
{
throw new InvalidMessageException(InvalidMessageError.InvalidPollResponseError);
}
Message pollMessage = MessageStore.Instance.GetMessage(message.ConversationId, message.PollMessageId.Value);
if (pollMessage == null)
{
throw new InvalidMessageException(InvalidMessageError.InvalidPollResponseError);
}
if ((pollMessage.MessageFlags & MessageFlags.PollMessage) != MessageFlags.PollMessage)
{
throw new InvalidMessageException(InvalidMessageError.InvalidPollResponseError);
}
if (((pollMessage.MessageFlags & MessageFlags.Calendar) == 0) &&
!pollMessage.PollOptions.Contains(message.PollResponse))
{
throw new InvalidMessageException(InvalidMessageError.InvalidPollResponseError);
}
}
if (message.ClientMessageId == Guid.Empty)
{
message.ClientMessageId = Guid.NewGuid();
}
}
