64 lines
2.1 KiB
Rust
64 lines
2.1 KiB
Rust
use std::mem;
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use ruma::{api::client::threads::get_threads::v1::IncludeThreads, OwnedUserId, RoomId, UserId};
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use crate::{database::KeyValueDatabase, service, services, utils, Error, PduEvent, Result};
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type PduEventIterResult<'a> = Result<Box<dyn Iterator<Item = Result<(u64, PduEvent)>> + 'a>>;
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impl service::rooms::threads::Data for KeyValueDatabase {
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fn threads_until<'a>(
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&'a self, user_id: &'a UserId, room_id: &'a RoomId, until: u64, _include: &'a IncludeThreads,
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) -> PduEventIterResult<'a> {
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let prefix = services().rooms.short.get_shortroomid(room_id)?.expect("room exists").to_be_bytes().to_vec();
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let mut current = prefix.clone();
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current.extend_from_slice(&(until - 1).to_be_bytes());
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Ok(Box::new(
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self.threadid_userids.iter_from(¤t, true).take_while(move |(k, _)| k.starts_with(&prefix)).map(
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move |(pduid, _users)| {
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let count = utils::u64_from_bytes(&pduid[(mem::size_of::<u64>())..])
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.map_err(|_| Error::bad_database("Invalid pduid in threadid_userids."))?;
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let mut pdu = services()
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.rooms
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.timeline
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.get_pdu_from_id(&pduid)?
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.ok_or_else(|| Error::bad_database("Invalid pduid reference in threadid_userids"))?;
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if pdu.sender != user_id {
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pdu.remove_transaction_id()?;
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}
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Ok((count, pdu))
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},
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),
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))
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}
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fn update_participants(&self, root_id: &[u8], participants: &[OwnedUserId]) -> Result<()> {
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let users = participants.iter().map(|user| user.as_bytes()).collect::<Vec<_>>().join(&[0xFF][..]);
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self.threadid_userids.insert(root_id, &users)?;
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Ok(())
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}
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fn get_participants(&self, root_id: &[u8]) -> Result<Option<Vec<OwnedUserId>>> {
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if let Some(users) = self.threadid_userids.get(root_id)? {
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Ok(Some(
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users
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.split(|b| *b == 0xFF)
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.map(|bytes| {
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UserId::parse(
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utils::string_from_bytes(bytes)
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.map_err(|_| Error::bad_database("Invalid UserId bytes in threadid_userids."))?,
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)
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.map_err(|_| Error::bad_database("Invalid UserId in threadid_userids."))
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})
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.filter_map(std::result::Result::ok)
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.collect(),
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))
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} else {
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Ok(None)
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}
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}
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}
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