51 lines
1.5 KiB
Rust
51 lines
1.5 KiB
Rust
use bdk::{
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keys::{
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bip39::{Language, Mnemonic, WordCount},
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DerivableKey, ExtendedKey, GeneratableKey, GeneratedKey,
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},
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miniscript,
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};
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use std::{
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fs::{self, File},
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io::Write,
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path::PathBuf,
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};
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pub fn make_mnemonic() -> String {
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let mnemonic: GeneratedKey<_, miniscript::Segwitv0> =
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Mnemonic::generate((WordCount::Words12, Language::English)).unwrap();
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mnemonic.to_string()
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}
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/// Write the mnemonic to a file in the node's side directory
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///
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/// TODO: obviously spitting the mnemonic out to the console is not for production
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pub(crate) fn write(mnemonic_path: &PathBuf) -> Result<(), std::io::Error> {
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let mnemonic = make_mnemonic();
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let mut file = File::create(mnemonic_path)?;
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println!("mnemonic: {mnemonic}");
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file.write(mnemonic.as_bytes())?;
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Ok(())
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}
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/// Creates Signet Bitcoin descriptors from a mnemonic
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pub fn get(mnemonic_words: String) -> anyhow::Result<ExtendedKey> {
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let mnemonic = Mnemonic::parse(mnemonic_words).unwrap();
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// Generate the extended key
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let xkey: ExtendedKey = mnemonic
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.into_extended_key()
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.expect("couldn't turn mnemonic into xkey");
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Ok(xkey)
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}
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pub(crate) fn load_from_file(side_dir: &PathBuf) -> anyhow::Result<ExtendedKey> {
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let mnemonic_path = crate::utils::side_paths(side_dir.clone()).1; // TODO: this tuple stinks
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let mnemonic_words = fs::read_to_string(mnemonic_path).expect("couldn't read bitcoin key file");
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println!("Creating wallet from mnemonic: {mnemonic_words}");
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get(mnemonic_words)
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}
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