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https://github.com/scsibug/nostr-rs-relay.git
synced 2024-11-12 14:29:06 -05:00
fix: ensure that replaceable events are handled correctly regardless of order receieved
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@ -415,9 +415,11 @@ pub fn write_event(conn: &mut PooledConnection, e: &Event) -> Result<usize> {
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// event with the same kind from the same author that was issued
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// earlier than this.
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if e.kind == 0 || e.kind == 3 || e.kind == 41 || (e.kind >= 10000 && e.kind < 20000) {
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let author = hex::decode(&e.pubkey).ok();
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// this is a backwards check - hide any events that were older.
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let update_count = tx.execute(
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"UPDATE event SET hidden=TRUE WHERE id!=? AND kind=? AND author=? AND created_at <= ? and hidden!=TRUE",
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params![ev_id, e.kind, hex::decode(&e.pubkey).ok(), e.created_at],
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"UPDATE event SET hidden=TRUE WHERE hidden!=TRUE and kind=? and author=? and id NOT IN (SELECT id FROM event WHERE kind=? AND author=? ORDER BY created_at DESC LIMIT 1)",
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params![e.kind, author, e.kind, author],
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)?;
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if update_count > 0 {
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info!(
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@ -20,7 +20,7 @@ pragma mmap_size = 17179869184; -- cap mmap at 16GB
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"##;
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/// Latest database version
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pub const DB_VERSION: usize = 11;
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pub const DB_VERSION: usize = 12;
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/// Schema definition
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const INIT_SQL: &str = formatcp!(
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@ -171,6 +171,9 @@ pub fn upgrade_db(conn: &mut PooledConnection) -> Result<()> {
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if curr_version == 10 {
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curr_version = mig_10_to_11(conn)?;
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}
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if curr_version == 11 {
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curr_version = mig_11_to_12(conn)?;
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}
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if curr_version == DB_VERSION {
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info!(
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@ -468,3 +471,31 @@ PRAGMA user_version = 11;
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}
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Ok(11)
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}
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fn mig_11_to_12(conn: &mut PooledConnection) -> Result<usize> {
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info!("database schema needs update from 11->12");
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let start = Instant::now();
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let tx = conn.transaction()?;
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{
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// Lookup every replaceable event
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let mut stmt = tx.prepare("select kind,author from event where kind in (0,3,41) or (kind>=10000 and kind<20000) order by id;")?;
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let mut replaceable_rows = stmt.query([])?;
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while let Some(row) = replaceable_rows.next()? {
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// we want to capture the event_id that had the tag, the tag name, and the tag hex value.
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let event_kind: u64 = row.get(0)?;
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let event_author: Vec<u8> = row.get(1)?;
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tx.execute(
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"UPDATE event SET hidden=TRUE WHERE hidden!=TRUE and kind=? and author=? and id NOT IN (SELECT id FROM event WHERE kind=? AND author=? ORDER BY created_at DESC LIMIT 1)",
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params![event_kind, event_author, event_kind, event_author],
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)?;
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}
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tx.execute("PRAGMA user_version = 12;", [])?;
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}
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tx.commit()?;
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info!("database schema upgraded v11 -> v12 in {:?}", start.elapsed());
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// vacuum after large table modification
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let start = Instant::now();
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conn.execute("VACUUM;", [])?;
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info!("vacuumed DB after hidden event cleanup in {:?}", start.elapsed());
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Ok(12)
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}
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