private void NormarlizeAttachmentType(FbMessageAttachment attachment)
{
if (!string.IsNullOrEmpty(attachment.MimeType))
{
if (attachment.MimeType.StartsWith("image/", StringComparison.InvariantCultureIgnoreCase))
{
if (attachment.Type != MessageAttachmentType.AnimatedImage)
{
attachment.Type = MessageAttachmentType.Image;
}
}
else if (attachment.MimeType.StartsWith("video/", StringComparison.InvariantCultureIgnoreCase))
{
attachment.Type = MessageAttachmentType.Video;
}
else if (attachment.MimeType.StartsWith("audio/", StringComparison.InvariantCultureIgnoreCase))
{
attachment.Type = MessageAttachmentType.Audio;
}
else
{
attachment.Type = MessageAttachmentType.File;
}
}
}
public async Task <FbPagingData <FbConversation> > GetConversationsMessages(string pageId, string token)
{
Checker.NotNullOrWhiteSpace(token, nameof(token));
Checker.NotNullOrWhiteSpace(token, nameof(pageId));
FacebookClient client = new FacebookClient(token);
long since = DateTime.UtcNow.AddHours(-1).ToUnixTimeSeconds();
string sharesFields = $"shares{{link,name,id}}";
string messagesFields = $"messages.since({since}){{from,to,message,id,created_time,attachments,{sharesFields}}}";
string url = $"/{pageId}/conversations?fields=id,updated_time,{messagesFields}";
FbPagingData <FbConversation> PagingConversation = new FbPagingData <FbConversation>();
List <FbConversation> Conversations = new List <FbConversation>();
dynamic fbConversations = await client.GetTaskAsync(url);
FbCursors FbCursors = new FbCursors
{
before = fbConversations.paging != null ? fbConversations.paging.cursors.before : null,
after = fbConversations.paging != null ? fbConversations.paging.cursors.after : null
};
FbPaging FbPaging = new FbPaging
{
cursors = FbCursors,
next = fbConversations.paging != null ? fbConversations.paging.next : null,
previous = fbConversations.paging != null ? fbConversations.paging.previous : null
};
PagingConversation.paging = FbPaging;
foreach (var conversation in fbConversations.data)
{
List <FbMessage> FbMessages = new List <FbMessage>();
foreach (var fbMessage in conversation.messages.data)
{
dynamic receiver = fbMessage.to.data[0];
var message = new FbMessage
{
Id = fbMessage.id,
SendTime = Convert.ToDateTime(fbMessage.created_time).ToUniversalTime(),
SenderId = fbMessage.from.id,
SenderEmail = fbMessage.from.email,
ReceiverId = receiver.id,
ReceiverEmail = receiver.email,
Content = fbMessage.message
};
if (fbMessage.attachments != null)
{
foreach (dynamic attachmnent in fbMessage.attachments.data)
{
var messageAttachment = new FbMessageAttachment
{
Id = attachmnent.id,
MimeType = attachmnent.mime_type,
Name = attachmnent.name
};
if (attachmnent.size != null)
{
messageAttachment.Size = attachmnent.size;
}
if (attachmnent.file_url != null)
{
messageAttachment.Type = MessageAttachmentType.File;
messageAttachment.Url = attachmnent.file_url;
}
if (attachmnent.image_data != null)
{
messageAttachment.Type = MessageAttachmentType.Image;
messageAttachment.Url = attachmnent.image_data.url;
messageAttachment.PreviewUrl = attachmnent.image_data.preview_url;
}
if (attachmnent.video_data != null)
{
messageAttachment.Type = MessageAttachmentType.Video;
messageAttachment.Url = attachmnent.video_data.url;
messageAttachment.PreviewUrl = attachmnent.video_data.preview_url;
}
NormarlizeAttachmentType(messageAttachment);
message.Attachments.Add(messageAttachment);
}
}
if (fbMessage.shares != null)
{
foreach (dynamic share in fbMessage.shares.data)
{
var messageShare = new FbMessageAttachment
{
Name = share.name,
Id = share.id,
Url = share.link,
};
if (!string.IsNullOrWhiteSpace(messageShare.Url) && string.IsNullOrWhiteSpace(messageShare.MimeType))
{
Uri uri = new Uri(messageShare.Url);
messageShare.MimeType = uri.GetMimeType();
if (messageShare.MimeType.Contains("image"))
{
messageShare.Type = MessageAttachmentType.Image;
}
}
if (string.IsNullOrWhiteSpace(messageShare.Url) && !string.IsNullOrWhiteSpace(messageShare.Name) && string.IsNullOrWhiteSpace(message.Content))
{
message.Content = messageShare.Name;
}
if (!string.IsNullOrWhiteSpace(messageShare.Url))
{
NormarlizeAttachmentType(messageShare);
message.Attachments.Add(messageShare);
}
}
}
FbMessages.Add(message);
}
FbCursors messageFbCursors = new FbCursors
{
before = conversation.messages.paging.cursors.before,
after = conversation.messages.paging.cursors.after
};
FbPaging messageFbPaging = new FbPaging
{
cursors = messageFbCursors,
next = conversation.messages.paging.next,
previous = conversation.messages.paging.previous
};
FbPagingData <FbMessage> PagingFbMessage = new FbPagingData <FbMessage>
{
data = FbMessages,
paging = messageFbPaging
};
FbConversation FbConversation = new FbConversation
{
Id = conversation.id,
UpdateTime = Convert.ToDateTime(conversation.updated_time).ToUniversalTime(),
Messages = PagingFbMessage
};
Conversations.Add(FbConversation);
}
PagingConversation.data = Conversations;
return(PagingConversation);
}
public async Task <IList <FbMessage> > GetMessagesFromConversationId(string token, string fbConversationId, int limit)
{
List <FbMessage> messages = new List <FbMessage>();
Checker.NotNullOrWhiteSpace(token, nameof(token));
Checker.NotNullOrWhiteSpace(fbConversationId, nameof(fbConversationId));
FacebookClient client = new FacebookClient(token);
string url = $"/{fbConversationId}/messages?fields=from,to,message,id,created_time,attachments,shares{{link,name,id}}&limit={limit}";
dynamic fbMessages = await client.GetTaskAsync(url);
foreach (var fbMessage in fbMessages.data)
{
dynamic receiver = fbMessage.to.data[0];
var message = new FbMessage
{
Id = fbMessage.id,
SendTime = Convert.ToDateTime(fbMessage.created_time).ToUniversalTime(),
SenderId = fbMessage.from.id,
SenderEmail = fbMessage.from.email,
ReceiverId = receiver.id,
ReceiverEmail = receiver.email,
Content = fbMessage.message
};
if (fbMessage.attachments != null)
{
foreach (dynamic attachmnent in fbMessage.attachments.data)
{
var messageAttachment = new FbMessageAttachment
{
Id = attachmnent.id,
MimeType = attachmnent.mime_type,
Name = attachmnent.name
};
if (attachmnent.size != null)
{
messageAttachment.Size = attachmnent.size;
}
if (attachmnent.file_url != null)
{
messageAttachment.Type = MessageAttachmentType.File;
messageAttachment.Url = attachmnent.file_url;
}
if (attachmnent.image_data != null)
{
messageAttachment.Type = MessageAttachmentType.Image;
messageAttachment.Url = attachmnent.image_data.url;
messageAttachment.PreviewUrl = attachmnent.image_data.preview_url;
}
if (attachmnent.video_data != null)
{
messageAttachment.Type = MessageAttachmentType.Video;
messageAttachment.Url = attachmnent.video_data.url;
messageAttachment.PreviewUrl = attachmnent.video_data.preview_url;
}
message.Attachments.Add(messageAttachment);
}
}
if (fbMessage.shares != null)
{
foreach (dynamic share in fbMessage.shares.data)
{
var messageShare = new FbMessageAttachment
{
Name = share.name,
Id = share.id,
Url = share.link,
};
if (!string.IsNullOrWhiteSpace(messageShare.Url) && string.IsNullOrWhiteSpace(messageShare.MimeType))
{
Uri uri = new Uri(messageShare.Url);
messageShare.MimeType = uri.GetMimeType();
if (messageShare.MimeType.Contains("image"))
{
messageShare.Type = MessageAttachmentType.Image;
}
}
if (string.IsNullOrWhiteSpace(messageShare.Url) && !string.IsNullOrWhiteSpace(messageShare.Name) && string.IsNullOrWhiteSpace(message.Content))
{
message.Content = messageShare.Name;
}
if (!string.IsNullOrWhiteSpace(messageShare.Url))
{
message.Attachments.Add(messageShare);
}
}
}
messages.Add(message);
}
return(messages);
}