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interface: validate field order in "mempool.get_fee_histogram" response

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SomberNight
2020-10-26 02:07:30 +01:00
parent 25d4a40d6e
commit 5481fd8af6
1 changed files with 4 additions and 0 deletions
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4
electrum/interface.py
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@@ -993,9 +993,13 @@ class Interface(Logger):
res = await self.session.send_request('mempool.get_fee_histogram') res = await self.session.send_request('mempool.get_fee_histogram')
# check response # check response
assert_list_or_tuple(res) assert_list_or_tuple(res)
prev_fee = float('inf')
for fee, s in res: for fee, s in res:
assert_non_negative_int_or_float(fee) assert_non_negative_int_or_float(fee)
assert_non_negative_integer(s) assert_non_negative_integer(s)
if fee >= prev_fee: # check monotonicity
raise RequestCorrupted(f'fees must be in decreasing order')
prev_fee = fee
return res return res
async def get_server_banner(self) -> str: async def get_server_banner(self) -> str: