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feat: new group membership update algorithm

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New algorithm improves group consistency
in cases of missing messages,
restored old backups and replies from classic MUAs.

Co-authored-by: Hocuri <hocuri@gmx.de>
Co-authored-by: link2xt <link2xt@testrun.org>
This commit is contained in:
Sebastian Klähn
2023-03-20 14:48:37 +01:00
committed by link2xt
parent 91bf87fa80
commit 6eb8abe535
4 changed files with 418 additions and 97 deletions
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6
src/chat.rs
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@@ -1400,6 +1400,7 @@ impl Chat {
}
/// Returns true if the chat is promoted.
/// This means a message has been sent to it and it _not_ only exists on the users device.
pub fn is_promoted(&self) -> bool {
!self.is_unpromoted()
}
@@ -2969,6 +2970,7 @@ pub(crate) async fn remove_from_chat_contacts_table(
}
/// Adds a contact to the chat.
/// If the group is promoted, also sends out a system message to all group members
pub async fn add_contact_to_chat(
context: &Context,
chat_id: ChatId,
@@ -2990,7 +2992,7 @@ pub(crate) async fn add_contact_to_chat_ex(
chat_id.reset_gossiped_timestamp(context).await?;
/*this also makes sure, not contacts are added to special or normal chats*/
// this also makes sure, no contacts are added to special or normal chats
let mut chat = Chat::load_from_db(context, chat_id).await?;
ensure!(
chat.typ == Chattype::Group || chat.typ == Chattype::Broadcast,
@@ -3012,7 +3014,7 @@ pub(crate) async fn add_contact_to_chat_ex(
context.emit_event(EventType::ErrorSelfNotInGroup(
"Cannot add contact to group; self not in group.".into(),
));
bail!("can not add contact because our account is not part of it");
bail!("can not add contact because the account is not part of the group/broadcast");
}
if from_handshake && chat.param.get_int(Param::Unpromoted).unwrap_or_default() == 1 {