60 lines
2.3 KiB
Rust
60 lines
2.3 KiB
Rust
use ruma::{api::client::error::ErrorKind, OwnedRoomAliasId, OwnedRoomId, RoomAliasId, RoomId};
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use crate::{database::KeyValueDatabase, service, services, utils, Error, Result};
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impl service::rooms::alias::Data for KeyValueDatabase {
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fn set_alias(&self, alias: &RoomAliasId, room_id: &RoomId) -> Result<()> {
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self.alias_roomid
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.insert(alias.alias().as_bytes(), room_id.as_bytes())?;
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let mut aliasid = room_id.as_bytes().to_vec();
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aliasid.push(0xff);
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aliasid.extend_from_slice(&services().globals.next_count()?.to_be_bytes());
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self.aliasid_alias.insert(&aliasid, alias.as_bytes())?;
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Ok(())
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}
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fn remove_alias(&self, alias: &RoomAliasId) -> Result<()> {
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if let Some(room_id) = self.alias_roomid.get(alias.alias().as_bytes())? {
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let mut prefix = room_id.to_vec();
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prefix.push(0xff);
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for (key, _) in self.aliasid_alias.scan_prefix(prefix) {
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self.aliasid_alias.remove(&key)?;
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}
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self.alias_roomid.remove(alias.alias().as_bytes())?;
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} else {
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return Err(Error::BadRequest(
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ErrorKind::NotFound,
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"Alias does not exist.",
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));
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}
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Ok(())
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}
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fn resolve_local_alias(&self, alias: &RoomAliasId) -> Result<Option<OwnedRoomId>> {
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self.alias_roomid
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.get(alias.alias().as_bytes())?
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.map(|bytes| {
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RoomId::parse(utils::string_from_bytes(&bytes).map_err(|_| {
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Error::bad_database("Room ID in alias_roomid is invalid unicode.")
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})?)
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.map_err(|_| Error::bad_database("Room ID in alias_roomid is invalid."))
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})
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.transpose()
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}
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fn local_aliases_for_room<'a>(
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&'a self,
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room_id: &RoomId,
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) -> Box<dyn Iterator<Item = Result<OwnedRoomAliasId>> + 'a> {
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let mut prefix = room_id.as_bytes().to_vec();
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prefix.push(0xff);
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Box::new(self.aliasid_alias.scan_prefix(prefix).map(|(_, bytes)| {
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utils::string_from_bytes(&bytes)
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.map_err(|_| Error::bad_database("Invalid alias bytes in aliasid_alias."))?
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.try_into()
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.map_err(|_| Error::bad_database("Invalid alias in aliasid_alias."))
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}))
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}
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}
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