505 lines
18 KiB
Rust
505 lines
18 KiB
Rust
use super::*;
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use rpc::Notification;
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use sea_orm::TryInsertResult;
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use time::OffsetDateTime;
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impl Database {
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pub async fn join_channel_chat(
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&self,
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channel_id: ChannelId,
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connection_id: ConnectionId,
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user_id: UserId,
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) -> Result<()> {
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self.transaction(|tx| async move {
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let channel = self.get_channel_internal(channel_id, &*tx).await?;
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self.check_user_is_channel_participant(&channel, user_id, &*tx)
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.await?;
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channel_chat_participant::ActiveModel {
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id: ActiveValue::NotSet,
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channel_id: ActiveValue::Set(channel_id),
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user_id: ActiveValue::Set(user_id),
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connection_id: ActiveValue::Set(connection_id.id as i32),
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connection_server_id: ActiveValue::Set(ServerId(connection_id.owner_id as i32)),
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}
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.insert(&*tx)
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.await?;
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Ok(())
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})
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.await
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}
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pub async fn channel_chat_connection_lost(
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&self,
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connection_id: ConnectionId,
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tx: &DatabaseTransaction,
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) -> Result<()> {
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channel_chat_participant::Entity::delete_many()
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.filter(
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Condition::all()
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.add(
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channel_chat_participant::Column::ConnectionServerId
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.eq(connection_id.owner_id),
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)
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.add(channel_chat_participant::Column::ConnectionId.eq(connection_id.id)),
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)
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.exec(tx)
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.await?;
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Ok(())
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}
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pub async fn leave_channel_chat(
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&self,
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channel_id: ChannelId,
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connection_id: ConnectionId,
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_user_id: UserId,
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) -> Result<()> {
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self.transaction(|tx| async move {
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channel_chat_participant::Entity::delete_many()
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.filter(
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Condition::all()
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.add(
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channel_chat_participant::Column::ConnectionServerId
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.eq(connection_id.owner_id),
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)
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.add(channel_chat_participant::Column::ConnectionId.eq(connection_id.id))
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.add(channel_chat_participant::Column::ChannelId.eq(channel_id)),
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)
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.exec(&*tx)
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.await?;
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Ok(())
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})
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.await
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}
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pub async fn get_channel_messages(
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&self,
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channel_id: ChannelId,
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user_id: UserId,
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count: usize,
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before_message_id: Option<MessageId>,
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) -> Result<Vec<proto::ChannelMessage>> {
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self.transaction(|tx| async move {
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let channel = self.get_channel_internal(channel_id, &*tx).await?;
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self.check_user_is_channel_participant(&channel, user_id, &*tx)
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.await?;
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let mut condition =
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Condition::all().add(channel_message::Column::ChannelId.eq(channel_id));
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if let Some(before_message_id) = before_message_id {
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condition = condition.add(channel_message::Column::Id.lt(before_message_id));
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}
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let rows = channel_message::Entity::find()
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.filter(condition)
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.order_by_desc(channel_message::Column::Id)
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.limit(count as u64)
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.all(&*tx)
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.await?;
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self.load_channel_messages(rows, &*tx).await
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})
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.await
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}
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pub async fn get_channel_messages_by_id(
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&self,
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user_id: UserId,
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message_ids: &[MessageId],
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) -> Result<Vec<proto::ChannelMessage>> {
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self.transaction(|tx| async move {
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let rows = channel_message::Entity::find()
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.filter(channel_message::Column::Id.is_in(message_ids.iter().copied()))
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.order_by_desc(channel_message::Column::Id)
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.all(&*tx)
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.await?;
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let mut channels = HashMap::<ChannelId, channel::Model>::default();
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for row in &rows {
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channels.insert(
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row.channel_id,
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self.get_channel_internal(row.channel_id, &*tx).await?,
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);
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}
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for (_, channel) in channels {
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self.check_user_is_channel_participant(&channel, user_id, &*tx)
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.await?;
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}
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let messages = self.load_channel_messages(rows, &*tx).await?;
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Ok(messages)
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})
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.await
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}
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async fn load_channel_messages(
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&self,
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rows: Vec<channel_message::Model>,
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tx: &DatabaseTransaction,
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) -> Result<Vec<proto::ChannelMessage>> {
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let mut messages = rows
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.into_iter()
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.map(|row| {
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let nonce = row.nonce.as_u64_pair();
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proto::ChannelMessage {
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id: row.id.to_proto(),
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sender_id: row.sender_id.to_proto(),
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body: row.body,
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timestamp: row.sent_at.assume_utc().unix_timestamp() as u64,
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mentions: vec![],
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nonce: Some(proto::Nonce {
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upper_half: nonce.0,
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lower_half: nonce.1,
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}),
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}
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})
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.collect::<Vec<_>>();
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messages.reverse();
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let mut mentions = channel_message_mention::Entity::find()
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.filter(channel_message_mention::Column::MessageId.is_in(messages.iter().map(|m| m.id)))
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.order_by_asc(channel_message_mention::Column::MessageId)
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.order_by_asc(channel_message_mention::Column::StartOffset)
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.stream(&*tx)
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.await?;
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let mut message_ix = 0;
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while let Some(mention) = mentions.next().await {
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let mention = mention?;
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let message_id = mention.message_id.to_proto();
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while let Some(message) = messages.get_mut(message_ix) {
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if message.id < message_id {
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message_ix += 1;
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} else {
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if message.id == message_id {
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message.mentions.push(proto::ChatMention {
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range: Some(proto::Range {
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start: mention.start_offset as u64,
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end: mention.end_offset as u64,
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}),
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user_id: mention.user_id.to_proto(),
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});
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}
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break;
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}
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}
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}
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Ok(messages)
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}
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pub async fn create_channel_message(
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&self,
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channel_id: ChannelId,
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user_id: UserId,
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body: &str,
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mentions: &[proto::ChatMention],
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timestamp: OffsetDateTime,
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nonce: u128,
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) -> Result<CreatedChannelMessage> {
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self.transaction(|tx| async move {
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let channel = self.get_channel_internal(channel_id, &*tx).await?;
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self.check_user_is_channel_participant(&channel, user_id, &*tx)
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.await?;
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let mut rows = channel_chat_participant::Entity::find()
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.filter(channel_chat_participant::Column::ChannelId.eq(channel_id))
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.stream(&*tx)
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.await?;
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let mut is_participant = false;
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let mut participant_connection_ids = Vec::new();
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let mut participant_user_ids = Vec::new();
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while let Some(row) = rows.next().await {
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let row = row?;
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if row.user_id == user_id {
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is_participant = true;
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}
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participant_user_ids.push(row.user_id);
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participant_connection_ids.push(row.connection());
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}
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drop(rows);
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if !is_participant {
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Err(anyhow!("not a chat participant"))?;
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}
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let timestamp = timestamp.to_offset(time::UtcOffset::UTC);
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let timestamp = time::PrimitiveDateTime::new(timestamp.date(), timestamp.time());
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let result = channel_message::Entity::insert(channel_message::ActiveModel {
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channel_id: ActiveValue::Set(channel_id),
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sender_id: ActiveValue::Set(user_id),
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body: ActiveValue::Set(body.to_string()),
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sent_at: ActiveValue::Set(timestamp),
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nonce: ActiveValue::Set(Uuid::from_u128(nonce)),
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id: ActiveValue::NotSet,
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})
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.on_conflict(
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OnConflict::columns([
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channel_message::Column::SenderId,
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channel_message::Column::Nonce,
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])
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.do_nothing()
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.to_owned(),
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)
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.do_nothing()
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.exec(&*tx)
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.await?;
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let message_id;
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let mut notifications = Vec::new();
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match result {
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TryInsertResult::Inserted(result) => {
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message_id = result.last_insert_id;
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let mentioned_user_ids =
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mentions.iter().map(|m| m.user_id).collect::<HashSet<_>>();
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let mentions = mentions
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.iter()
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.filter_map(|mention| {
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let range = mention.range.as_ref()?;
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if !body.is_char_boundary(range.start as usize)
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|| !body.is_char_boundary(range.end as usize)
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{
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return None;
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}
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Some(channel_message_mention::ActiveModel {
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message_id: ActiveValue::Set(message_id),
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start_offset: ActiveValue::Set(range.start as i32),
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end_offset: ActiveValue::Set(range.end as i32),
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user_id: ActiveValue::Set(UserId::from_proto(mention.user_id)),
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})
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})
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.collect::<Vec<_>>();
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if !mentions.is_empty() {
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channel_message_mention::Entity::insert_many(mentions)
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.exec(&*tx)
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.await?;
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}
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for mentioned_user in mentioned_user_ids {
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notifications.extend(
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self.create_notification(
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UserId::from_proto(mentioned_user),
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rpc::Notification::ChannelMessageMention {
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message_id: message_id.to_proto(),
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sender_id: user_id.to_proto(),
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channel_id: channel_id.to_proto(),
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},
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false,
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&*tx,
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)
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.await?,
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);
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}
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self.observe_channel_message_internal(channel_id, user_id, message_id, &*tx)
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.await?;
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}
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_ => {
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message_id = channel_message::Entity::find()
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.filter(channel_message::Column::Nonce.eq(Uuid::from_u128(nonce)))
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.one(&*tx)
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.await?
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.ok_or_else(|| anyhow!("failed to insert message"))?
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.id;
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}
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}
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let mut channel_members = self.get_channel_participants(&channel, &*tx).await?;
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channel_members.retain(|member| !participant_user_ids.contains(member));
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Ok(CreatedChannelMessage {
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message_id,
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participant_connection_ids,
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channel_members,
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notifications,
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})
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})
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.await
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}
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pub async fn observe_channel_message(
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&self,
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channel_id: ChannelId,
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user_id: UserId,
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message_id: MessageId,
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) -> Result<NotificationBatch> {
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self.transaction(|tx| async move {
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self.observe_channel_message_internal(channel_id, user_id, message_id, &*tx)
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.await?;
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let mut batch = NotificationBatch::default();
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batch.extend(
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self.mark_notification_as_read(
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user_id,
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&Notification::ChannelMessageMention {
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message_id: message_id.to_proto(),
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sender_id: Default::default(),
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channel_id: Default::default(),
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},
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&*tx,
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)
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.await?,
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);
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Ok(batch)
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})
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.await
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}
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async fn observe_channel_message_internal(
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&self,
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channel_id: ChannelId,
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user_id: UserId,
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message_id: MessageId,
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tx: &DatabaseTransaction,
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) -> Result<()> {
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observed_channel_messages::Entity::insert(observed_channel_messages::ActiveModel {
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user_id: ActiveValue::Set(user_id),
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channel_id: ActiveValue::Set(channel_id),
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channel_message_id: ActiveValue::Set(message_id),
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})
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.on_conflict(
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OnConflict::columns([
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observed_channel_messages::Column::ChannelId,
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observed_channel_messages::Column::UserId,
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])
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.update_column(observed_channel_messages::Column::ChannelMessageId)
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.action_cond_where(observed_channel_messages::Column::ChannelMessageId.lt(message_id))
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.to_owned(),
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)
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// TODO: Try to upgrade SeaORM so we don't have to do this hack around their bug
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.exec_without_returning(&*tx)
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.await?;
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Ok(())
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}
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pub async fn unseen_channel_messages(
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&self,
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user_id: UserId,
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channel_ids: &[ChannelId],
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tx: &DatabaseTransaction,
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) -> Result<Vec<proto::UnseenChannelMessage>> {
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let mut observed_messages_by_channel_id = HashMap::default();
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let mut rows = observed_channel_messages::Entity::find()
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.filter(observed_channel_messages::Column::UserId.eq(user_id))
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.filter(observed_channel_messages::Column::ChannelId.is_in(channel_ids.iter().copied()))
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.stream(&*tx)
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.await?;
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while let Some(row) = rows.next().await {
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let row = row?;
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observed_messages_by_channel_id.insert(row.channel_id, row);
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}
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drop(rows);
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let mut values = String::new();
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for id in channel_ids {
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if !values.is_empty() {
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values.push_str(", ");
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}
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write!(&mut values, "({})", id).unwrap();
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}
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if values.is_empty() {
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return Ok(Default::default());
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}
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let sql = format!(
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r#"
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SELECT
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*
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FROM (
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SELECT
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*,
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row_number() OVER (
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PARTITION BY channel_id
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ORDER BY id DESC
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) as row_number
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FROM channel_messages
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WHERE
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channel_id in ({values})
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) AS messages
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WHERE
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row_number = 1
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"#,
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);
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let stmt = Statement::from_string(self.pool.get_database_backend(), sql);
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let last_messages = channel_message::Model::find_by_statement(stmt)
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.all(&*tx)
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.await?;
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let mut changes = Vec::new();
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for last_message in last_messages {
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if let Some(observed_message) =
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observed_messages_by_channel_id.get(&last_message.channel_id)
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{
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if observed_message.channel_message_id == last_message.id {
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continue;
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}
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}
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changes.push(proto::UnseenChannelMessage {
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channel_id: last_message.channel_id.to_proto(),
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message_id: last_message.id.to_proto(),
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});
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}
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Ok(changes)
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}
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pub async fn remove_channel_message(
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&self,
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channel_id: ChannelId,
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message_id: MessageId,
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user_id: UserId,
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) -> Result<Vec<ConnectionId>> {
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self.transaction(|tx| async move {
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let mut rows = channel_chat_participant::Entity::find()
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.filter(channel_chat_participant::Column::ChannelId.eq(channel_id))
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.stream(&*tx)
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.await?;
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let mut is_participant = false;
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let mut participant_connection_ids = Vec::new();
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while let Some(row) = rows.next().await {
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let row = row?;
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if row.user_id == user_id {
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is_participant = true;
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}
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participant_connection_ids.push(row.connection());
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}
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drop(rows);
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if !is_participant {
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Err(anyhow!("not a chat participant"))?;
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}
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let result = channel_message::Entity::delete_by_id(message_id)
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.filter(channel_message::Column::SenderId.eq(user_id))
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.exec(&*tx)
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.await?;
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if result.rows_affected == 0 {
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let channel = self.get_channel_internal(channel_id, &*tx).await?;
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if self
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.check_user_is_channel_admin(&channel, user_id, &*tx)
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.await
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.is_ok()
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{
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let result = channel_message::Entity::delete_by_id(message_id)
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.exec(&*tx)
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.await?;
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if result.rows_affected == 0 {
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Err(anyhow!("no such message"))?;
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}
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} else {
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Err(anyhow!("operation could not be completed"))?;
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}
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}
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Ok(participant_connection_ids)
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})
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.await
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}
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}
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