From ccc9a900efd14df7b3292153cee724fcf98a5e05 Mon Sep 17 00:00:00 2001
From: Jack Robison <jackrobison@lbry.io>
Date: Tue, 5 Oct 2021 14:24:46 -0400
Subject: [PATCH] sort touched or deleted claim hashes

---
 lbry/wallet/server/db/db.py       |  8 +++++++-
 lbry/wallet/server/db/prefixes.py | 14 ++++++++++----
 lbry/wallet/server/leveldb.py     |  3 ---
 3 files changed, 17 insertions(+), 8 deletions(-)

diff --git a/lbry/wallet/server/db/db.py b/lbry/wallet/server/db/db.py
index f8bce3dc1..3d945bb48 100644
--- a/lbry/wallet/server/db/db.py
+++ b/lbry/wallet/server/db/db.py
@@ -1,7 +1,7 @@
 import struct
 from typing import Optional
 from lbry.wallet.server.db import DB_PREFIXES
-from lbry.wallet.server.db.revertable import RevertableOpStack
+from lbry.wallet.server.db.revertable import RevertableOpStack, RevertablePut, RevertableDelete
 
 
 class KeyValueStorage:
@@ -101,3 +101,9 @@ class PrefixDB:
     @property
     def closed(self):
         return self._db.closed
+
+    def stage_raw_put(self, key: bytes, value: bytes):
+        self._op_stack.append_op(RevertablePut(key, value))
+
+    def stage_raw_delete(self, key: bytes, value: bytes):
+        self._op_stack.append_op(RevertableDelete(key, value))
diff --git a/lbry/wallet/server/db/prefixes.py b/lbry/wallet/server/db/prefixes.py
index c7ec9c3a9..ec401d6cf 100644
--- a/lbry/wallet/server/db/prefixes.py
+++ b/lbry/wallet/server/db/prefixes.py
@@ -866,6 +866,11 @@ class ClaimTakeoverPrefixRow(PrefixRow):
     prefix = DB_PREFIXES.claim_takeover.value
     value_struct = struct.Struct(b'>20sL')
 
+    key_part_lambdas = [
+        lambda: b'',
+        length_encoded_name
+    ]
+
     @classmethod
     def pack_key(cls, name: str):
         return cls.prefix + length_encoded_name(name)
@@ -1412,10 +1417,10 @@ class TouchedOrDeletedPrefixRow(PrefixRow):
         return TouchedOrDeletedClaimKey(*super().unpack_key(key))
 
     @classmethod
-    def pack_value(cls, touched, deleted) -> bytes:
+    def pack_value(cls, touched: typing.Set[bytes], deleted: typing.Set[bytes]) -> bytes:
         assert True if not touched else all(len(item) == 20 for item in touched)
         assert True if not deleted else all(len(item) == 20 for item in deleted)
-        return cls.value_struct.pack(len(touched), len(deleted)) + b''.join(touched) + b''.join(deleted)
+        return cls.value_struct.pack(len(touched), len(deleted)) + b''.join(sorted(touched)) + b''.join(sorted(deleted))
 
     @classmethod
     def unpack_value(cls, data: bytes) -> TouchedOrDeletedClaimValue:
@@ -1565,9 +1570,10 @@ class LevelDBStore(KeyValueStorage):
 
 
 class HubDB(PrefixDB):
-    def __init__(self, path: str, cache_mb: int, max_open_files: int = 512):
+    def __init__(self, path: str, cache_mb: int, max_open_files: int = 512,
+                 unsafe_prefixes: Optional[typing.Set[bytes]] = None):
         db = LevelDBStore(path, cache_mb, max_open_files)
-        super().__init__(db, unsafe_prefixes={DB_PREFIXES.db_state.value})
+        super().__init__(db, unsafe_prefixes=unsafe_prefixes)
         self.claim_to_support = ClaimToSupportPrefixRow(db, self._op_stack)
         self.support_to_claim = SupportToClaimPrefixRow(db, self._op_stack)
         self.claim_to_txo = ClaimToTXOPrefixRow(db, self._op_stack)
diff --git a/lbry/wallet/server/leveldb.py b/lbry/wallet/server/leveldb.py
index 2c7f7f781..093254ea8 100644
--- a/lbry/wallet/server/leveldb.py
+++ b/lbry/wallet/server/leveldb.py
@@ -996,9 +996,6 @@ class LevelDB:
         """Returns a height from which we should store undo info."""
         return max_height - self.env.reorg_limit + 1
 
-    def read_undo_info(self, height: int):
-        return self.prefix_db.undo.get(height), self.prefix_db.touched_or_deleted.get(height)
-
     def apply_expiration_extension_fork(self):
         # TODO: this can't be reorged
         for k, v in self.prefix_db.claim_expiration.iterate():