haskoin-store-0.23.7: src/Haskoin/Store/Logic.hs
{-# LANGUAGE DeriveAnyClass #-}
{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE LambdaCase #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE TemplateHaskell #-}
module Haskoin.Store.Logic
( ImportException
, initBest
, getOldOrphans
, getOldMempool
, importOrphan
, revertBlock
, importBlock
, newMempoolTx
, deleteTx
) where
import Control.Monad (forM, forM_, unless, void, when,
zipWithM_)
import Control.Monad.Except (MonadError (..))
import Control.Monad.Logger (MonadLogger, logErrorS,
logWarnS)
import qualified Data.ByteString as B
import qualified Data.ByteString.Short as B.Short
import Data.Either (rights)
import qualified Data.IntMap.Strict as I
import Data.List (nub, sort)
import Data.Maybe (fromMaybe, isNothing, mapMaybe)
import Data.Serialize (encode)
import Data.String (fromString)
import Data.String.Conversions (cs)
import Data.Text (Text)
import Data.Word (Word32, Word64)
import Haskoin (Address, Block (..), BlockHash,
BlockHeader (..),
BlockNode (..), Network (..),
OutPoint (..), Tx (..), TxHash,
TxIn (..), TxOut (..),
addrToString, blockHashToHex,
genesisBlock, genesisNode,
headerHash, isGenesis,
nullOutPoint, scriptToAddressBS,
txHash, txHashToHex)
import Haskoin.Store.Common (Balance (..), BlockData (..),
BlockRef (..), BlockTx (..),
Prev (..), Spender (..),
StoreInput (..),
StoreOutput (..),
StoreRead (..), StoreWrite (..),
Transaction (..), TxData (..),
UnixTime, Unspent (..),
confirmed, fromTransaction,
isCoinbase, nullBalance,
scriptToStringAddr, sortTxs,
toTransaction, transactionData)
import Network.Haskoin.Block.Headers (computeSubsidy)
import UnliftIO (Exception)
data ImportException
= PrevBlockNotBest !Text
| UnconfirmedCoinbase !Text
| BestBlockUnknown
| BestBlockNotFound !Text
| BlockNotBest !Text
| TxNotFound !Text
| NoUnspent !Text
| TxInvalidOp !Text
| TxDeleted !Text
| TxDoubleSpend !Text
| AlreadyUnspent !Text
| TxConfirmed !Text
| OutputOutOfRange !Text
| BalanceNotFound !Text
| InsufficientBalance !Text
| InsufficientZeroBalance !Text
| InsufficientOutputs !Text
| InsufficientFunds !Text
| DuplicatePrevOutput !Text
deriving (Show, Read, Eq, Ord, Exception)
initBest ::
( StoreRead m
, StoreWrite m
, MonadLogger m
, MonadError ImportException m
)
=> m ()
initBest = do
net <- getNetwork
m <- getBestBlock
when
(isNothing m)
(void (importBlock (genesisBlock net) (genesisNode net)))
getOldOrphans :: StoreRead m => UnixTime -> m [TxHash]
getOldOrphans now =
map (txHash . snd) . filter ((< now - 600) . fst) <$> getOrphans
getOldMempool :: StoreRead m => UnixTime -> m [TxHash]
getOldMempool now =
map blockTxHash . filter ((< now - 3600 * 72) . memRefTime . blockTxBlock) <$>
getMempool
importOrphan ::
( StoreRead m
, StoreWrite m
, MonadLogger m
, MonadError ImportException m
)
=> UnixTime
-> Tx
-> m (Maybe [TxHash]) -- ^ deleted transactions or nothing if import failed
importOrphan t tx = deleteOrphanTx (txHash tx) >> newMempoolTx tx t
newMempoolTx ::
( StoreRead m
, StoreWrite m
, MonadLogger m
, MonadError ImportException m
)
=> Tx
-> UnixTime
-> m (Maybe [TxHash]) -- ^ deleted transactions or nothing if import failed
newMempoolTx tx w =
getTxData (txHash tx) >>= \case
Just x
| not (txDataDeleted x) -> return Nothing
_ -> go
where
go = do
orp <-
any isNothing <$>
mapM (getTxData . outPointHash . prevOutput) (txIn tx)
if orp
then do
$(logWarnS) "BlockStore" $
"Orphan tx: " <> txHashToHex (txHash tx)
insertOrphanTx tx w
return Nothing
else f
f = do
us <-
forM (txIn tx) $ \TxIn {prevOutput = op} -> do
t <- getImportTx (outPointHash op)
getTxOutput (outPointIndex op) t
let ds = map spenderHash (mapMaybe outputSpender us)
h e = do
$(logErrorS) "BlockStore" $
"Could not import mempool tx " <> txHashToHex (txHash tx) <>
": " <>
cs (show e)
return Nothing
if null ds
then fmap Just (importTx (MemRef w) w tx) `catchError` h
else g ds
g ds = do
net <- getNetwork
rbf <-
if getReplaceByFee net
then and <$> mapM isrbf ds
else return False
if rbf
then r ds
else n
r ds = do
$(logWarnS) "BlockStore" $
"Replace by fee tx: " <> txHashToHex (txHash tx)
ths <- concat <$> forM ds (deleteTx True)
dts <- importTx (MemRef w) w tx
return (Just (nub (ths <> dts)))
n = do
$(logWarnS) "BlockStore" $ "Conflicting tx: " <> txHashToHex (txHash tx)
insertDeletedMempoolTx tx w
return Nothing
isrbf th = transactionRBF <$> getImportTx th
revertBlock ::
( StoreRead m
, StoreWrite m
, MonadLogger m
, MonadError ImportException m
)
=> BlockHash
-> m [TxHash]
revertBlock bh = do
bd <-
getBestBlock >>= \case
Nothing -> do
$(logErrorS) "BlockStore" "Best block unknown"
throwError BestBlockUnknown
Just h ->
getBlock h >>= \case
Nothing -> do
$(logErrorS) "BlockStore" "Best block not found"
throwError (BestBlockNotFound (blockHashToHex h))
Just b
| h == bh -> return b
| otherwise -> do
$(logErrorS) "BlockStore" $
"Cannot delete block that is not head: " <>
blockHashToHex h
throwError (BlockNotBest (blockHashToHex bh))
txs <- mapM (fmap transactionData . getImportTx) (blockDataTxs bd)
ths <-
nub . concat <$>
mapM (deleteTx False . txHash . snd) (reverse (sortTxs txs))
setBest (prevBlock (blockDataHeader bd))
insertBlock bd {blockDataMainChain = False}
return ths
importBlock ::
( StoreRead m
, StoreWrite m
, MonadLogger m
, MonadError ImportException m
)
=> Block
-> BlockNode
-> m [TxHash] -- ^ deleted transactions
importBlock b n = do
mp <- filter (`elem` bths) . map blockTxHash <$> getMempool
getBestBlock >>= \case
Nothing
| isGenesis n -> return ()
| otherwise -> do
$(logErrorS) "BlockStore" $
"Cannot import non-genesis block at this point: " <>
blockHashToHex (headerHash (blockHeader b))
throwError BestBlockUnknown
Just h
| prevBlock (blockHeader b) == h -> return ()
| otherwise -> do
$(logErrorS) "BlockStore" $
"Block does not build on head: " <>
blockHashToHex (headerHash (blockHeader b))
throwError $
PrevBlockNotBest (blockHashToHex (prevBlock (nodeHeader n)))
net <- getNetwork
let subsidy = computeSubsidy net (nodeHeight n)
insertBlock
BlockData
{ blockDataHeight = nodeHeight n
, blockDataMainChain = True
, blockDataWork = nodeWork n
, blockDataHeader = nodeHeader n
, blockDataSize = fromIntegral (B.length (encode b))
, blockDataTxs = map txHash (blockTxns b)
, blockDataWeight = fromIntegral w
, blockDataSubsidy = subsidy
, blockDataFees = cb_out_val - subsidy
, blockDataOutputs = ts_out_val
}
bs <- getBlocksAtHeight (nodeHeight n)
setBlocksAtHeight (nub (headerHash (nodeHeader n) : bs)) (nodeHeight n)
setBest (headerHash (nodeHeader n))
ths <-
nub . concat <$>
mapM (uncurry (import_or_confirm mp)) (sortTxs (blockTxns b))
return ths
where
bths = map txHash (blockTxns b)
import_or_confirm mp x tx =
if txHash tx `elem` mp
then getTxData (txHash tx) >>= \case
Just td -> confirmTx td (br x) tx >> return []
Nothing -> do
$(logErrorS) "BlockStore" $
"Cannot get data for mempool tx: " <>
txHashToHex (txHash tx)
throwError $ TxNotFound (txHashToHex (txHash tx))
else importTx
(br x)
(fromIntegral (blockTimestamp (nodeHeader n)))
tx
cb_out_val = sum (map outValue (txOut (head (blockTxns b))))
ts_out_val = sum (map (sum . map outValue . txOut) (tail (blockTxns b)))
br pos = BlockRef {blockRefHeight = nodeHeight n, blockRefPos = pos}
w =
let s =
B.length
(encode
b
{ blockTxns =
map (\t -> t {txWitness = []}) (blockTxns b)
})
x = B.length (encode b)
in s * 3 + x
importTx ::
( StoreRead m
, StoreWrite m
, MonadLogger m
, MonadError ImportException m
)
=> BlockRef
-> Word64 -- ^ unix time
-> Tx
-> m [TxHash] -- ^ deleted transactions
importTx br tt tx = do
when (length (nub (map prevOutput (txIn tx))) < length (txIn tx)) $ do
$(logErrorS) "BlockStore" $
"Transaction spends same output twice: " <> txHashToHex (txHash tx)
throwError (DuplicatePrevOutput (txHashToHex (txHash tx)))
when (iscb && not (confirmed br)) $ do
$(logErrorS) "BlockStore" $
"Coinbase cannot be imported into mempool: " <>
txHashToHex (txHash tx)
throwError (UnconfirmedCoinbase (txHashToHex (txHash tx)))
us' <-
if iscb
then return []
else forM (txIn tx) $ \TxIn {prevOutput = op} -> uns op
let us = map fst us'
ths = nub (concatMap snd us')
when
(not (confirmed br) &&
sum (map unspentAmount us) < sum (map outValue (txOut tx))) $ do
$(logErrorS) "BlockStore" $
"Insufficient funds for tx: " <> txHashToHex (txHash tx)
throwError (InsufficientFunds (txHashToHex th))
commit us
return ths
where
commit us = do
zipWithM_ (spendOutput br (txHash tx)) [0 ..] us
zipWithM_
(\i o -> newOutput br (OutPoint (txHash tx) i) o)
[0 ..]
(txOut tx)
rbf <- getrbf
let t =
Transaction
{ transactionBlock = br
, transactionVersion = txVersion tx
, transactionLockTime = txLockTime tx
, transactionInputs =
if iscb
then zipWith mkcb (txIn tx) ws
else zipWith3 mkin us (txIn tx) ws
, transactionOutputs = map mkout (txOut tx)
, transactionDeleted = False
, transactionRBF = rbf
, transactionTime = tt
}
let (d, _) = fromTransaction t
insertTx d
updateAddressCounts (txAddresses t) (+ 1)
unless (confirmed br) $ insertIntoMempool (txHash tx) (memRefTime br)
uns op =
getUnspent op >>= \case
Just u -> return (u, [])
Nothing -> do
$(logWarnS) "BlockStore" $
"Unspent output not found: " <>
txHashToHex (outPointHash op) <>
" " <>
fromString (show (outPointIndex op))
getSpender op >>= \case
Nothing -> do
$(logErrorS) "BlockStore" $
"Output not found: " <>
txHashToHex (outPointHash op) <>
" " <>
fromString (show (outPointIndex op))
throwError (NoUnspent (cs (show op)))
Just Spender {spenderHash = s} -> do
ths <- deleteTx True s
getUnspent op >>= \case
Nothing -> do
$(logErrorS) "BlockStore" $
"Cannot unspend output: " <>
txHashToHex (outPointHash op) <>
" " <>
fromString (show (outPointIndex op))
throwError (NoUnspent (cs (show op)))
Just u -> return (u, ths)
th = txHash tx
iscb = all (== nullOutPoint) (map prevOutput (txIn tx))
ws = map Just (txWitness tx) <> repeat Nothing
getrbf
| iscb = return False
| any ((< 0xffffffff - 1) . txInSequence) (txIn tx) = return True
| confirmed br = return False
| otherwise =
let hs = nub $ map (outPointHash . prevOutput) (txIn tx)
in fmap or . forM hs $ \h ->
getTxData h >>= \case
Nothing -> do
$(logErrorS) "BlockStore" $
"Transaction not found: " <> txHashToHex h
throwError (TxNotFound (txHashToHex h))
Just t
| confirmed (txDataBlock t) -> return False
| txDataRBF t -> return True
| otherwise -> return False
mkcb ip w =
StoreCoinbase
{ inputPoint = prevOutput ip
, inputSequence = txInSequence ip
, inputSigScript = scriptInput ip
, inputWitness = w
}
mkin u ip w =
let script = B.Short.fromShort (unspentScript u)
in StoreInput
{ inputPoint = prevOutput ip
, inputSequence = txInSequence ip
, inputSigScript = scriptInput ip
, inputPkScript = script
, inputAmount = unspentAmount u
, inputWitness = w
}
mkout o =
StoreOutput
{ outputAmount = outValue o
, outputScript = scriptOutput o
, outputSpender = Nothing
}
confirmTx ::
( StoreRead m
, StoreWrite m
, MonadLogger m
, MonadError ImportException m
)
=> TxData
-> BlockRef
-> Tx
-> m ()
confirmTx t br tx = do
forM_ (txDataPrevs t) $ \p ->
case scriptToAddressBS (prevScript p) of
Left _ -> return ()
Right a -> do
deleteAddrTx
a
BlockTx
{blockTxBlock = txDataBlock t, blockTxHash = txHash tx}
insertAddrTx
a
BlockTx {blockTxBlock = br, blockTxHash = txHash tx}
forM_ (zip [0 ..] (txOut tx)) $ \(n, o) -> do
let op = OutPoint (txHash tx) n
s <- getSpender (OutPoint (txHash tx) n)
when (isNothing s) $ do
deleteUnspent op
net <- getNetwork
insertUnspent
Unspent
{ unspentBlock = br
, unspentPoint = op
, unspentAmount = outValue o
, unspentScript = B.Short.toShort (scriptOutput o)
, unspentAddress = scriptToStringAddr net (scriptOutput o)
}
case scriptToAddressBS (scriptOutput o) of
Left _ -> return ()
Right a -> do
deleteAddrTx
a
BlockTx
{blockTxBlock = txDataBlock t, blockTxHash = txHash tx}
insertAddrTx
a
BlockTx {blockTxBlock = br, blockTxHash = txHash tx}
when (isNothing s) $ do
net <- getNetwork
deleteAddrUnspent
a
Unspent
{ unspentBlock = txDataBlock t
, unspentPoint = op
, unspentAmount = outValue o
, unspentScript = B.Short.toShort (scriptOutput o)
, unspentAddress =
scriptToStringAddr net (scriptOutput o)
}
insertAddrUnspent
a
Unspent
{ unspentBlock = br
, unspentPoint = op
, unspentAmount = outValue o
, unspentScript = B.Short.toShort (scriptOutput o)
, unspentAddress =
scriptToStringAddr net (scriptOutput o)
}
reduceBalance False False a (outValue o)
increaseBalance True False a (outValue o)
insertTx t {txDataBlock = br}
deleteFromMempool (txHash tx)
deleteFromMempool :: (Monad m, StoreRead m, StoreWrite m) => TxHash -> m ()
deleteFromMempool th = do
mp <- getMempool
setMempool $ filter ((/= th) . blockTxHash) mp
insertIntoMempool :: (Monad m, StoreRead m, StoreWrite m) => TxHash -> UnixTime -> m ()
insertIntoMempool th unixtime = do
mp <- getMempool
setMempool . reverse . sort $
BlockTx {blockTxBlock = MemRef unixtime, blockTxHash = th} : mp
deleteTx ::
( StoreRead m
, StoreWrite m
, MonadLogger m
, MonadError ImportException m
)
=> Bool -- ^ only delete transaction if unconfirmed
-> TxHash
-> m [TxHash] -- ^ deleted transactions
deleteTx mo h = do
getTxData h >>= \case
Nothing -> do
$(logErrorS) "BlockStore" $ "Cannot find tx to delete: " <> txHashToHex h
throwError (TxNotFound (txHashToHex h))
Just t
| txDataDeleted t -> do
$(logWarnS) "BlockStore" $ "Already deleted tx: " <> txHashToHex h
return []
| mo && confirmed (txDataBlock t) -> do
$(logErrorS) "BlockStore" $
"Will not delete confirmed tx: " <> txHashToHex h
throwError (TxConfirmed (txHashToHex h))
| otherwise -> go t
where
go t = do
ss <- nub . map spenderHash . I.elems <$> getSpenders h
ths <- concat <$> mapM (deleteTx True) ss
forM_ (take (length (txOut (txData t))) [0 ..]) $ \n ->
delOutput (OutPoint h n)
let ps = filter (/= nullOutPoint) (map prevOutput (txIn (txData t)))
mapM_ unspendOutput ps
unless (confirmed (txDataBlock t)) $ deleteFromMempool h
insertTx t {txDataDeleted = True}
updateAddressCounts (txDataAddresses t) (subtract 1)
return $ nub (h : ths)
insertDeletedMempoolTx ::
( StoreRead m
, StoreWrite m
, MonadLogger m
, MonadError ImportException m
)
=> Tx
-> UnixTime
-> m ()
insertDeletedMempoolTx tx w = do
us <-
forM (txIn tx) $ \TxIn {prevOutput = op} ->
getImportTx (outPointHash op) >>= getTxOutput (outPointIndex op)
rbf <- getrbf
let d =
fst $
fromTransaction
Transaction
{ transactionBlock = MemRef w
, transactionVersion = txVersion tx
, transactionLockTime = txLockTime tx
, transactionInputs = zipWith3 mkin us (txIn tx) ws
, transactionOutputs = map mkout (txOut tx)
, transactionDeleted = True
, transactionRBF = rbf
, transactionTime = w
}
insertTx d
where
ws = map Just (txWitness tx) <> repeat Nothing
getrbf
| any ((< 0xffffffff - 1) . txInSequence) (txIn tx) = return True
| otherwise =
let hs = nub $ map (outPointHash . prevOutput) (txIn tx)
in fmap or . forM hs $ \h ->
getTxData h >>= \case
Nothing -> do
$(logErrorS) "BlockStore" $
"Tx not found: " <> txHashToHex h
throwError (TxNotFound (txHashToHex h))
Just t
| confirmed (txDataBlock t) -> return False
| txDataRBF t -> return True
| otherwise -> return False
mkin u ip wit =
StoreInput
{ inputPoint = prevOutput ip
, inputSequence = txInSequence ip
, inputSigScript = scriptInput ip
, inputPkScript = outputScript u
, inputAmount = outputAmount u
, inputWitness = wit
}
mkout o =
StoreOutput
{ outputAmount = outValue o
, outputScript = scriptOutput o
, outputSpender = Nothing
}
newOutput ::
( StoreRead m
, StoreWrite m
, MonadLogger m
)
=> BlockRef
-> OutPoint
-> TxOut
-> m ()
newOutput br op to = do
net <- getNetwork
insertUnspent (u net)
case scriptToAddressBS (scriptOutput to) of
Left _ -> return ()
Right a -> do
insertAddrUnspent a (u net)
insertAddrTx
a
BlockTx {blockTxHash = outPointHash op, blockTxBlock = br}
increaseBalance (confirmed br) True a (outValue to)
where
u net =
Unspent
{ unspentBlock = br
, unspentAmount = outValue to
, unspentScript = B.Short.toShort (scriptOutput to)
, unspentPoint = op
, unspentAddress = scriptToStringAddr net (scriptOutput to)
}
delOutput ::
( StoreRead m
, StoreWrite m
, MonadLogger m
, MonadError ImportException m
)
=> OutPoint
-> m ()
delOutput op = do
net <- getNetwork
t <- getImportTx (outPointHash op)
u <- getTxOutput (outPointIndex op) t
deleteUnspent op
case scriptToAddressBS (outputScript u) of
Left _ -> return ()
Right a -> do
deleteAddrUnspent
a
Unspent
{ unspentScript = B.Short.toShort (outputScript u)
, unspentBlock = transactionBlock t
, unspentPoint = op
, unspentAmount = outputAmount u
, unspentAddress = scriptToStringAddr net (outputScript u)
}
deleteAddrTx
a
BlockTx
{ blockTxHash = outPointHash op
, blockTxBlock = transactionBlock t
}
reduceBalance
(confirmed (transactionBlock t))
True
a
(outputAmount u)
getImportTx ::
(StoreRead m, MonadLogger m, MonadError ImportException m)
=> TxHash
-> m Transaction
getImportTx th =
getTxData th >>= \case
Nothing -> do
$(logErrorS) "BlockStore" $ "Tx not found: " <> txHashToHex th
throwError $ TxNotFound (txHashToHex th)
Just d
| txDataDeleted d -> do
$(logErrorS) "BlockStore" $ "Tx deleted: " <> txHashToHex th
throwError $ TxDeleted (txHashToHex th)
| otherwise -> do
sm <- getSpenders th
return $ toTransaction d sm
getTxOutput ::
(MonadLogger m, MonadError ImportException m)
=> Word32
-> Transaction
-> m StoreOutput
getTxOutput i tx = do
unless (fromIntegral i < length (transactionOutputs tx)) $ do
$(logErrorS) "BlockStore" $
"Output out of range: " <> txHashToHex (txHash (transactionData tx)) <>
" " <>
fromString (show i)
throwError . OutputOutOfRange . cs $
show
OutPoint
{ outPointHash = txHash (transactionData tx)
, outPointIndex = i
}
return $ transactionOutputs tx !! fromIntegral i
spendOutput ::
( StoreRead m
, StoreWrite m
, MonadLogger m
, MonadError ImportException m
)
=> BlockRef
-> TxHash
-> Word32
-> Unspent
-> m ()
spendOutput br th ix u = do
insertSpender (unspentPoint u) Spender {spenderHash = th, spenderIndex = ix}
case scriptToAddressBS (B.Short.fromShort (unspentScript u)) of
Left _ -> return ()
Right a -> do
reduceBalance
(confirmed (unspentBlock u))
False
a
(unspentAmount u)
deleteAddrUnspent a u
insertAddrTx a BlockTx {blockTxHash = th, blockTxBlock = br}
deleteUnspent (unspentPoint u)
unspendOutput ::
( StoreRead m
, StoreWrite m
, MonadLogger m
, MonadError ImportException m
)
=> OutPoint
-> m ()
unspendOutput op = do
t <- getImportTx (outPointHash op)
o <- getTxOutput (outPointIndex op) t
s <-
case outputSpender o of
Nothing -> do
$(logErrorS) "BlockStore" $
"Output already unspent: " <> txHashToHex (outPointHash op) <>
" " <>
fromString (show (outPointIndex op))
throwError (AlreadyUnspent (cs (show op)))
Just s -> return s
x <- getImportTx (spenderHash s)
deleteSpender op
net <- getNetwork
let u =
Unspent
{ unspentAmount = outputAmount o
, unspentBlock = transactionBlock t
, unspentScript = B.Short.toShort (outputScript o)
, unspentPoint = op
, unspentAddress = scriptToStringAddr net (outputScript o)
}
insertUnspent u
case scriptToAddressBS (outputScript o) of
Left _ -> return ()
Right a -> do
insertAddrUnspent a u
deleteAddrTx
a
BlockTx
{ blockTxHash = spenderHash s
, blockTxBlock = transactionBlock x
}
increaseBalance
(confirmed (unspentBlock u))
False
a
(outputAmount o)
reduceBalance ::
( StoreRead m
, StoreWrite m
, MonadLogger m
, MonadError ImportException m
)
=> Bool -- ^ spend or delete confirmed output
-> Bool -- ^ reduce total received
-> Address
-> Word64
-> m ()
reduceBalance c t a v = do
net <- getNetwork
b <- getBalance a
if nullBalance b
then do
$(logErrorS) "BlockStore" $
"Address balance not found: " <> addrText net a
throwError (BalanceNotFound (addrText net a))
else do
when (v > amnt b) $ do
$(logErrorS) "BlockStore" $
"Insufficient " <> conf <> " balance: " <> addrText net a <>
" (needs: " <>
cs (show v) <>
", has: " <>
cs (show (amnt b)) <>
")"
throwError $
if c
then InsufficientBalance (addrText net a)
else InsufficientZeroBalance (addrText net a)
setBalance
b
{ balanceAmount =
balanceAmount b -
if c
then v
else 0
, balanceZero =
balanceZero b -
if c
then 0
else v
, balanceUnspentCount = balanceUnspentCount b - 1
, balanceTotalReceived =
balanceTotalReceived b -
if t
then v
else 0
}
where
amnt =
if c
then balanceAmount
else balanceZero
conf =
if c
then "confirmed"
else "unconfirmed"
increaseBalance ::
( StoreRead m
, StoreWrite m
, MonadLogger m
)
=> Bool -- ^ add confirmed output
-> Bool -- ^ increase total received
-> Address
-> Word64
-> m ()
increaseBalance c t a v = do
b <- getBalance a
setBalance
b
{ balanceAmount =
balanceAmount b +
if c
then v
else 0
, balanceZero =
balanceZero b +
if c
then 0
else v
, balanceUnspentCount = balanceUnspentCount b + 1
, balanceTotalReceived =
balanceTotalReceived b +
if t
then v
else 0
}
updateAddressCounts ::
(StoreWrite m, StoreRead m, Monad m, MonadError ImportException m)
=> [Address]
-> (Word64 -> Word64)
-> m ()
updateAddressCounts as f =
forM_ as $ \a -> do
b <-
do net <- getNetwork
b <- getBalance a
if nullBalance b
then throwError (BalanceNotFound (addrText net a))
else return b
setBalance b {balanceTxCount = f (balanceTxCount b)}
txAddresses :: Transaction -> [Address]
txAddresses t =
nub . rights $
map (scriptToAddressBS . inputPkScript)
(filter (not . isCoinbase) (transactionInputs t)) <>
map (scriptToAddressBS . outputScript) (transactionOutputs t)
txDataAddresses :: TxData -> [Address]
txDataAddresses t =
nub . rights $
map (scriptToAddressBS . prevScript) (I.elems (txDataPrevs t)) <>
map (scriptToAddressBS . scriptOutput) (txOut (txData t))
addrText :: Network -> Address -> Text
addrText net a = fromMaybe "???" $ addrToString net a