public async Task <List <MessageVm> > LoadForwardedMessagesAsync(ForwardedMessagesInfo forwarded, long?requestorId)
{
var messagesCondition = PredicateBuilder.New <Message>();
List <Message> messages = new List <Message>();
switch (forwarded.ConversationType)
{
case ConversationType.Chat:
{
messagesCondition = forwarded.MessagesGlobalId.Aggregate(messagesCondition,
(current, value) => current.Or(opt => opt.GlobalId == value && opt.ChatId == forwarded.ConversationId).Expand());
break;
}
case ConversationType.Dialog:
{
messagesCondition = forwarded.MessagesGlobalId.Aggregate(messagesCondition,
(current, value) => current.Or(opt => opt.GlobalId == value && opt.DialogId == forwarded.ConversationId).Expand());
break;
}
case ConversationType.Channel:
{
messagesCondition = forwarded.MessagesGlobalId.Aggregate(messagesCondition,
(current, value) => current.Or(opt => opt.GlobalId == value && opt.ChannelId == forwarded.ConversationId).Expand());
}
break;
case ConversationType.Unknown:
{
messagesCondition = forwarded.MessagesGlobalId.Aggregate(messagesCondition,
(current, value) => current.Or(opt => opt.GlobalId == value && opt.ChannelId == null && opt.DialogId == null && opt.ChatId == null).Expand());
}
break;
default:
return(null);
}
using (MessengerDbContext context = contextFactory.Create())
{
messages = await context.Messages
.AsNoTracking()
.Include(opt => opt.Attachments)
.Where(messagesCondition)
.ToListAsync().ConfigureAwait(false);
foreach (var message in messages)
{
if (message.ChannelId != null)
{
message.SenderId = null;
}
message.Attachments = message.Attachments.Where(opt => opt.Type != (short)AttachmentType.ForwardedMessages).ToList();
}
return(MessageConverter.GetMessagesVm(MessageConverter.GetMessagesDto(messages), requestorId));
}
}
private async Task <bool> ValidateForwardedMessagesAttachment(AttachmentVm forwardedMessagesAttachment, long?userId, bool anotherNodeMessage)
{
ForwardedMessagesInfo fMessagesInfo = null;
if (forwardedMessagesAttachment.Payload is string)
{
fMessagesInfo = ObjectSerializer.JsonToObject <ForwardedMessagesInfo>(forwardedMessagesAttachment.Payload.ToString());
}
else if (forwardedMessagesAttachment.Payload is List <MessageVm> messages)
{
if (!messages.Any())
{
return(true);
}
var message = messages.FirstOrDefault();
if (anotherNodeMessage)
{
await _createMessagesService.SaveForwardedMessagesAsync(MessageConverter.GetMessagesDto(messages)).ConfigureAwait(false);
forwardedMessagesAttachment.Payload = new ForwardedMessagesInfo(
messages.Select(opt => opt.GlobalId.Value),
message.ConversationType == ConversationType.Dialog
? (await _loadDialogsService.GetDialogsIdByUsersIdPairAsync(message.SenderId.Value, message.ReceiverId.Value).ConfigureAwait(false)).FirstOrDefault()
: message.ConversationId,
message.ConversationType);
return(true);
}
switch (message.ConversationType)
{
case ConversationType.Dialog:
{
var dialogsId = await _loadDialogsService.GetDialogsIdByUsersIdPairAsync(message.SenderId.Value, message.ReceiverId.Value).ConfigureAwait(false);
if (dialogsId.Any())
{
fMessagesInfo = new ForwardedMessagesInfo(messages.Select(opt => opt.GlobalId.Value), dialogsId[0], ConversationType.Dialog);
}
else
{
fMessagesInfo = new ForwardedMessagesInfo(messages.Select(opt => opt.GlobalId.Value), null, ConversationType.Dialog);
}
}
break;
case ConversationType.Chat:
{
var chat = await _loadChatsService.GetChatByIdAsync(message.ConversationId.GetValueOrDefault()).ConfigureAwait(false);
if (chat.Type == ChatType.Private)
{
return(false);
}
}
break;
case ConversationType.Channel:
fMessagesInfo = new ForwardedMessagesInfo(messages.Select(opt => opt.GlobalId.Value), message.ConversationId.GetValueOrDefault(), message.ConversationType);
break;
}
}
else
{
fMessagesInfo = ObjectSerializer.JsonToObject <ForwardedMessagesInfo>(ObjectSerializer.ObjectToJson(forwardedMessagesAttachment.Payload));
}
if (fMessagesInfo == null)
{
return(false);
}
return(await _loadMessagesService.CanUserGetMessageAsync(fMessagesInfo.ConversationType, fMessagesInfo.ConversationId, userId).ConfigureAwait(false));
}
private static async Task <object> PayloadStringToObject(string attachmentPayload, AttachmentType attachmentType, long?requestorId)
{
if (attachmentPayload == null)
{
return(null);
}
switch (attachmentType)
{
case AttachmentType.Audio:
case AttachmentType.File:
case AttachmentType.Picture:
case AttachmentType.Video:
case AttachmentType.VoiceMessage:
case AttachmentType.VideoMessage:
{
if (IsPayloadJsonObject(attachmentPayload, out FileInfoVm fileInfo))
{
return(fileInfo);
}
return(await attachmentsService.LoadFileInfoAsync(attachmentPayload).ConfigureAwait(false));
}
case AttachmentType.EncryptedMessage:
{
return(ObjectSerializer.JsonToObject <EncryptedMessage>(attachmentPayload));
}
case AttachmentType.ForwardedMessages:
{
if (IsPayloadJsonObject(attachmentPayload, out ForwardedMessagesInfo messInfo))
{
ForwardedMessagesInfo messagesInfo =
ObjectSerializer.JsonToObject <ForwardedMessagesInfo>(attachmentPayload);
return(await attachmentsService.LoadForwardedMessagesAsync(messagesInfo, requestorId).ConfigureAwait(false));
}
return(ObjectSerializer.JsonToObject <List <MessageVm> >(attachmentPayload));
}
case AttachmentType.KeyMessage:
{
return(ObjectSerializer.JsonToObject <KeyExchangeMessageVm>(attachmentPayload));
}
case AttachmentType.Poll:
{
try
{
PollAttachmentInformation pollInfo =
ObjectSerializer.JsonToObject <PollAttachmentInformation>(attachmentPayload);
PollDto pollDto = await AppServiceProvider.Instance.PollsService.GetPollAsync(pollInfo.PollId, pollInfo.ConversationId, pollInfo.ConversationType).ConfigureAwait(false);
if (requestorId != null)
{
return(PollConverter.GetPollVm(pollDto, requestorId.Value));
}
else
{
return(PollConverter.GetPollVm(pollDto, pollDto.CreatorId));
}
}
catch (Exception ex)
{
Logger.WriteLog(ex);
return(null);
}
}
case AttachmentType.SystemMessage:
{
try
{
return(ObjectSerializer.JsonToObject <SystemMessageInfo>(attachmentPayload));
}
catch (Exception ex)
{
Logger.WriteLog(ex);
return(null);
}
}
default:
return(attachmentPayload);
}
}