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fix: return valid MsgId from receive_imf() when the message is replaced

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receive_imf() calls add_parts()
which INSERTs or UPDATEs the message using UPSERT [1].
It then uses last_insert_rowid() to get
the ID of the inserted message.
However, it is incorrect to use last_insert_rowid()
if an UPDATE was executed instead of INSERT.
The solution is to use `RETURNING id` clause
to make the UPSERT statement return message ID in any case [2].

The fix is tested in test_webxdc_update_for_not_downloaded_instance()
and with a debug_assert!.

[1] https://www.sqlite.org/lang_UPSERT.html
[2] https://sqlite.org/forum/forumpost/9ce3bc1c4a85c15f
This commit is contained in:
link2xt
2023-07-11 03:33:07 +00:00
parent a464cbdfe6
commit db941ccf88
2 changed files with 14 additions and 6 deletions
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14
src/receive_imf.rs
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@@ -1178,8 +1178,9 @@ SET rfc724_mid=excluded.rfc724_mid, chat_id=excluded.chat_id,
mime_compressed=excluded.mime_compressed, mime_in_reply_to=excluded.mime_in_reply_to,
mime_references=excluded.mime_references, mime_modified=excluded.mime_modified, error=excluded.error, ephemeral_timer=excluded.ephemeral_timer,
ephemeral_timestamp=excluded.ephemeral_timestamp, download_state=excluded.download_state, hop_info=excluded.hop_info
RETURNING id
"#)?;
stmt.execute(params![
let row_id: MsgId = stmt.query_row(params![
replace_msg_id,
rfc724_mid,
if trash { DC_CHAT_ID_TRASH } else { chat_id },
@@ -1218,8 +1219,12 @@ SET rfc724_mid=excluded.rfc724_mid, chat_id=excluded.chat_id,
DownloadState::Done
},
mime_parser.hop_info
])?;
let row_id = conn.last_insert_rowid();
],
|row| {
let msg_id: MsgId = row.get(0)?;
Ok(msg_id)
}
)?;
Ok(row_id)
})
.await?;
@@ -1228,7 +1233,8 @@ SET rfc724_mid=excluded.rfc724_mid, chat_id=excluded.chat_id,
// afterwards insert additional parts.
replace_msg_id = None;
created_db_entries.push(MsgId::new(u32::try_from(row_id)?));
debug_assert!(!row_id.is_special());
created_db_entries.push(row_id);
}
// check all parts whether they contain a new logging webxdc