mirror of
https://github.com/lightninglabs/loop.git
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099e98005c
This commit adds the listening for sweep requests from the server. On a sweep request the loopin manager will fetch the loop in from the db, do sanity and safety checks and then sign the psbt for the input and send it back to the server.
88 lines
3.4 KiB
Go
88 lines
3.4 KiB
Go
package loopin
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import (
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"context"
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"github.com/btcsuite/btcd/btcutil"
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"github.com/lightninglabs/loop"
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"github.com/lightninglabs/loop/fsm"
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"github.com/lightninglabs/loop/staticaddr/address"
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"github.com/lightninglabs/loop/staticaddr/deposit"
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"github.com/lightninglabs/loop/staticaddr/script"
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"github.com/lightninglabs/loop/swapserverrpc"
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"github.com/lightningnetwork/lnd/lntypes"
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"github.com/lightningnetwork/lnd/routing/route"
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"github.com/lightningnetwork/lnd/zpay32"
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)
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type (
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// ValidateLoopInContract validates the contract parameters against our
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// request.
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ValidateLoopInContract func(height int32, htlcExpiry int32) error
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)
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// AddressManager handles fetching of address parameters.
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type AddressManager interface {
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// GetStaticAddressParameters returns the static address parameters.
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GetStaticAddressParameters(ctx context.Context) (*address.Parameters,
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error)
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// GetStaticAddress returns the deposit address for the given client and
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// server public keys.
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GetStaticAddress(ctx context.Context) (*script.StaticAddress, error)
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}
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// DepositManager handles the interaction of loop-ins with deposits.
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type DepositManager interface {
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// GetAllDeposits returns all known deposits from the database store.
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GetAllDeposits(ctx context.Context) ([]*deposit.Deposit, error)
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// AllStringOutpointsActiveDeposits returns all deposits that have the
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// given outpoints and are in the given state. If any of the outpoints
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// does not correspond to an active deposit, the function returns false.
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AllStringOutpointsActiveDeposits(outpoints []string,
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stateFilter fsm.StateType) ([]*deposit.Deposit, bool)
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// TransitionDeposits transitions the given deposits to the next state
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// based on the given event. It returns an error if the transition is
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// invalid.
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TransitionDeposits(ctx context.Context, deposits []*deposit.Deposit,
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event fsm.EventType, expectedFinalState fsm.StateType) error
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}
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// StaticAddressLoopInStore provides access to the static address loop-in DB.
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type StaticAddressLoopInStore interface {
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// CreateLoopIn creates a loop-in record in the database.
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CreateLoopIn(ctx context.Context, loopIn *StaticAddressLoopIn) error
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// UpdateLoopIn updates a loop-in record in the database.
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UpdateLoopIn(ctx context.Context, loopIn *StaticAddressLoopIn) error
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// GetStaticAddressLoopInSwapsByStates returns all loop-ins with given
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// states.
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GetStaticAddressLoopInSwapsByStates(ctx context.Context,
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states []fsm.StateType) ([]*StaticAddressLoopIn, error)
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// IsStored checks if the loop-in is already stored in the database.
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IsStored(ctx context.Context, swapHash lntypes.Hash) (bool, error)
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// GetLoopInByHash returns the loop-in swap with the given hash.
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GetLoopInByHash(ctx context.Context, swapHash lntypes.Hash) (
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*StaticAddressLoopIn, error)
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}
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type QuoteGetter interface {
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// GetLoopInQuote returns a quote for a loop-in swap.
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GetLoopInQuote(ctx context.Context, amt btcutil.Amount,
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pubKey route.Vertex, lastHop *route.Vertex,
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routeHints [][]zpay32.HopHint,
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initiator string, numDeposits uint32) (*loop.LoopInQuote, error)
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}
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type NotificationManager interface {
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// SubscribeStaticLoopInSweepRequests subscribes to the static loop in
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// sweep requests. These are sent by the server to the client to request
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// a sweep of a static loop in that has been finished.
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SubscribeStaticLoopInSweepRequests(ctx context.Context,
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) <-chan *swapserverrpc.ServerStaticLoopInSweepNotification
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}
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