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Diffstat (limited to 'xeth/frontend.go')
| -rw-r--r-- | xeth/frontend.go | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/xeth/frontend.go b/xeth/frontend.go new file mode 100644 index 000000000..8deb5c98c --- /dev/null +++ b/xeth/frontend.go @@ -0,0 +1,32 @@ +package xeth + +import ( + "github.com/ethereum/go-ethereum/core/types" +) + +// Frontend should be implemented by users of XEth. Its methods are +// called whenever XEth makes a decision that requires user input. +type Frontend interface { + // UnlockAccount is called when a transaction needs to be signed + // but the key corresponding to the transaction's sender is + // locked. + // + // It should unlock the account with the given address and return + // true if unlocking succeeded. + UnlockAccount(address []byte) bool + + // This is called for all transactions inititated through + // Transact. It should prompt the user to confirm the transaction + // and return true if the transaction was acknowledged. + // + // ConfirmTransaction is not used for Call transactions + // because they cannot change any state. + ConfirmTransaction(tx *types.Transaction) bool +} + +// dummyFrontend is a non-interactive frontend that allows all +// transactions but cannot not unlock any keys. +type dummyFrontend struct{} + +func (dummyFrontend) UnlockAccount([]byte) bool { return false } +func (dummyFrontend) ConfirmTransaction(*types.Transaction) bool { return true } |