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7812a02233
* move checker and rename to updater * rustfmt * complete checker/updater move * rustfmt * move libwallet error into separate file * rustfmt * starting to sort our error types * updating errors in libtx and libwallet * rustfmt * factor out error type * rustfmt * compiling, errors split into libwallet and wallet errors * rustfmt * changing user error reporting to new format * rustfmt * clean up error types * clean up error types * move restore into libwallet * rustfmt
51 lines
1.6 KiB
Rust
51 lines
1.6 KiB
Rust
// Copyright 2018 The Grin Developers
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//! Wallet key management functions
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use keychain::Identifier;
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use libwallet::error::Error;
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use libwallet::types::WalletBackend;
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/// Get our next available key
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pub fn new_output_key<T>(wallet: &mut T) -> Result<(Identifier, u32), Error>
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where
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T: WalletBackend,
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{
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wallet.with_wallet(|wallet_data| next_available_key(wallet_data))
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}
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/// Get next available key in the wallet
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pub fn next_available_key<T>(wallet: &mut T) -> (Identifier, u32)
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where
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T: WalletBackend,
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{
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let root_key_id = wallet.keychain().root_key_id();
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let derivation = wallet.next_child(root_key_id.clone());
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let key_id = wallet.keychain().derive_key_id(derivation).unwrap();
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(key_id, derivation)
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}
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/// Retrieve an existing key from a wallet
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pub fn retrieve_existing_key<T>(wallet: &T, key_id: Identifier) -> (Identifier, u32)
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where
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T: WalletBackend,
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{
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if let Some(existing) = wallet.get_output(&key_id) {
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let key_id = existing.key_id.clone();
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let derivation = existing.n_child;
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(key_id, derivation)
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} else {
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panic!("should never happen");
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}
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}
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