867 lines
29 KiB
Rust
867 lines
29 KiB
Rust
#[macro_use]
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extern crate log;
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mod utils;
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use android_logger::Config;
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use failure::format_err;
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use jni::{
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objects::{JClass, JString},
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sys::{jboolean, jbyteArray, jint, jlong, jobjectArray, jstring, JNI_FALSE, JNI_TRUE},
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JNIEnv,
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};
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use log::Level;
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use std::convert::TryFrom;
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use std::panic;
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use std::path::Path;
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use std::ptr;
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use zcash_client_backend::{
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encoding::{
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decode_extended_full_viewing_key, decode_extended_spending_key,
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encode_extended_full_viewing_key, encode_extended_spending_key, encode_payment_address,
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},
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keys::spending_key,
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};
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use zcash_client_sqlite::{
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address::RecipientAddress,
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chain::{rewind_to_height, validate_combined_chain},
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error::ErrorKind,
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init::{init_accounts_table, init_blocks_table, init_data_database},
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query::{
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get_address, get_balance, get_received_memo_as_utf8, get_sent_memo_as_utf8,
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get_verified_balance,
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},
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scan::{decrypt_and_store_transaction, scan_cached_blocks},
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transact::{create_to_address, OvkPolicy},
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};
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use zcash_primitives::{
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block::BlockHash,
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consensus::BranchId,
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note_encryption::Memo,
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transaction::{components::Amount, Transaction},
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zip32::ExtendedFullViewingKey,
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};
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use zcash_proofs::prover::LocalTxProver;
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use crate::utils::exception::unwrap_exc_or;
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#[cfg(feature = "mainnet")]
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use zcash_primitives::consensus::MainNetwork as Network;
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#[cfg(not(feature = "mainnet"))]
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use zcash_primitives::consensus::TestNetwork as Network;
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#[cfg(feature = "mainnet")]
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use zcash_client_backend::constants::mainnet::{
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COIN_TYPE, HRP_SAPLING_EXTENDED_FULL_VIEWING_KEY, HRP_SAPLING_EXTENDED_SPENDING_KEY,
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HRP_SAPLING_PAYMENT_ADDRESS,
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};
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#[cfg(not(feature = "mainnet"))]
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use zcash_client_backend::constants::testnet::{
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COIN_TYPE, HRP_SAPLING_EXTENDED_FULL_VIEWING_KEY, HRP_SAPLING_EXTENDED_SPENDING_KEY,
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HRP_SAPLING_PAYMENT_ADDRESS,
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};
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// /////////////////////////////////////////////////////////////////////////////////////////////////
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// Temporary Imports
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mod local_rpc_types;
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use base58::ToBase58;
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use local_rpc_types::{TransactionDataList, TransparentTransaction, TransparentTransactionList};
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use protobuf::{parse_from_bytes, Message};
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use sha2::{Digest, Sha256};
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use zcash_primitives::legacy::TransparentAddress;
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use hdwallet::{ExtendedPrivKey, KeyIndex};
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use secp256k1::{PublicKey, Secp256k1};
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use zcash_client_backend::constants::mainnet::B58_PUBKEY_ADDRESS_PREFIX;
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// use crate::extended_key::{key_index::KeyIndex, ExtendedPrivKey, ExtendedPubKey, KeySeed};
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// /////////////////////////////////////////////////////////////////////////////////////////////////
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#[cfg(debug_assertions)]
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fn print_debug_state() {
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debug!("WARNING! Debugging enabled! This will likely slow things down 10X!");
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}
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#[cfg(not(debug_assertions))]
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fn print_debug_state() {
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debug!("Release enabled (congrats, this is NOT a debug build).");
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}
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#[no_mangle]
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pub unsafe extern "C" fn Java_cash_z_ecc_android_sdk_jni_RustBackend_initLogs(
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_env: JNIEnv<'_>,
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_: JClass<'_>,
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) {
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android_logger::init_once(
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Config::default()
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.with_min_level(Level::Debug)
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.with_tag("cash.z.rust.logs"),
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);
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log_panics::init();
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debug!("logs have been initialized successfully");
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print_debug_state()
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}
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#[no_mangle]
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pub unsafe extern "C" fn Java_cash_z_ecc_android_sdk_jni_RustBackend_initDataDb(
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env: JNIEnv<'_>,
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_: JClass<'_>,
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db_data: JString<'_>,
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) -> jboolean {
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let res = panic::catch_unwind(|| {
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let db_data = utils::java_string_to_rust(&env, db_data);
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init_data_database(&db_data)
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.map(|()| JNI_TRUE)
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.map_err(|e| format_err!("Error while initializing data DB: {}", e))
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});
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unwrap_exc_or(&env, res, JNI_FALSE)
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}
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#[no_mangle]
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pub unsafe extern "C" fn Java_cash_z_ecc_android_sdk_jni_RustBackend_initAccountsTable(
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env: JNIEnv<'_>,
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_: JClass<'_>,
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db_data: JString<'_>,
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seed: jbyteArray,
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accounts: jint,
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) -> jobjectArray {
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let res = panic::catch_unwind(|| {
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let db_data = utils::java_string_to_rust(&env, db_data);
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let seed = env.convert_byte_array(seed).unwrap();
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let accounts = if accounts >= 0 {
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accounts as u32
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} else {
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return Err(format_err!("accounts argument must be positive"));
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};
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let extsks: Vec<_> = (0..accounts)
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.map(|account| spending_key(&seed, COIN_TYPE, account))
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.collect();
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let extfvks: Vec<_> = extsks.iter().map(ExtendedFullViewingKey::from).collect();
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match init_accounts_table(&db_data, &extfvks) {
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Ok(()) => {
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// Return the ExtendedSpendingKeys for the created accounts
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Ok(utils::rust_vec_to_java(
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&env,
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extsks,
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"java/lang/String",
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|env, extsk| {
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env.new_string(encode_extended_spending_key(
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HRP_SAPLING_EXTENDED_SPENDING_KEY,
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&extsk,
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))
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},
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|env| env.new_string(""),
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))
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}
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Err(e) => Err(format_err!("Error while initializing accounts: {}", e)),
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}
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});
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unwrap_exc_or(&env, res, ptr::null_mut())
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}
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#[no_mangle]
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pub unsafe extern "C" fn Java_cash_z_ecc_android_sdk_jni_RustBackend_initAccountsTableWithKeys(
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env: JNIEnv<'_>,
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_: JClass<'_>,
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db_data: JString<'_>,
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extfvks_arr: jobjectArray,
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) -> jboolean {
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let res = panic::catch_unwind(|| {
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let db_data = utils::java_string_to_rust(&env, db_data);
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// TODO: avoid all this unwrapping and also surface erros, better
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let count = env.get_array_length(extfvks_arr).unwrap();
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let extfvks = (0..count)
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.map(|i| env.get_object_array_element(extfvks_arr, i))
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.map(|jstr| utils::java_string_to_rust(&env, jstr.unwrap().into()))
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.map(|vkstr| {
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decode_extended_full_viewing_key(HRP_SAPLING_EXTENDED_FULL_VIEWING_KEY, &vkstr)
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.unwrap()
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.unwrap()
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})
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.collect::<Vec<_>>();
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match init_accounts_table(&db_data, &extfvks) {
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Ok(()) => Ok(JNI_TRUE),
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Err(e) => Err(format_err!("Error while initializing accounts: {}", e)),
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}
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});
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unwrap_exc_or(&env, res, JNI_FALSE)
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}
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#[no_mangle]
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pub unsafe extern "C" fn Java_cash_z_ecc_android_sdk_tool_DerivationTool_deriveExtendedSpendingKeys(
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env: JNIEnv<'_>,
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_: JClass<'_>,
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seed: jbyteArray,
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accounts: jint,
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) -> jobjectArray {
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let res = panic::catch_unwind(|| {
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let seed = env.convert_byte_array(seed).unwrap();
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let accounts = if accounts > 0 {
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accounts as u32
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} else {
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return Err(format_err!("accounts argument must be greater than zero"));
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};
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let extsks: Vec<_> = (0..accounts)
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.map(|account| spending_key(&seed, COIN_TYPE, account))
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.collect();
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Ok(utils::rust_vec_to_java(
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&env,
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extsks,
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"java/lang/String",
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|env, extsk| {
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env.new_string(encode_extended_spending_key(
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HRP_SAPLING_EXTENDED_SPENDING_KEY,
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&extsk,
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))
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},
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|env| env.new_string(""),
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))
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});
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unwrap_exc_or(&env, res, ptr::null_mut())
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}
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#[no_mangle]
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pub unsafe extern "C" fn Java_cash_z_ecc_android_sdk_tool_DerivationTool_deriveExtendedFullViewingKeys(
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env: JNIEnv<'_>,
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_: JClass<'_>,
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seed: jbyteArray,
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accounts: jint,
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) -> jobjectArray {
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let res = panic::catch_unwind(|| {
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let seed = env.convert_byte_array(seed).unwrap();
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let accounts = if accounts > 0 {
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accounts as u32
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} else {
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return Err(format_err!("accounts argument must be greater than zero"));
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};
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let extfvks: Vec<_> = (0..accounts)
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.map(|account| ExtendedFullViewingKey::from(&spending_key(&seed, COIN_TYPE, account)))
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.collect();
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Ok(utils::rust_vec_to_java(
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&env,
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extfvks,
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"java/lang/String",
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|env, extfvk| {
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env.new_string(encode_extended_full_viewing_key(
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HRP_SAPLING_EXTENDED_FULL_VIEWING_KEY,
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&extfvk,
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))
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},
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|env| env.new_string(""),
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))
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});
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unwrap_exc_or(&env, res, ptr::null_mut())
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}
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#[no_mangle]
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pub unsafe extern "C" fn Java_cash_z_ecc_android_sdk_tool_DerivationTool_deriveShieldedAddressFromSeed(
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env: JNIEnv<'_>,
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_: JClass<'_>,
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seed: jbyteArray,
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account_index: jint,
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) -> jstring {
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let res = panic::catch_unwind(|| {
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let seed = env.convert_byte_array(seed).unwrap();
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let account_index = if account_index >= 0 {
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account_index as u32
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} else {
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return Err(format_err!("accountIndex argument must be positive"));
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};
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let address = spending_key(&seed, COIN_TYPE, account_index)
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.default_address()
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.unwrap()
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.1;
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let address_str = encode_payment_address(HRP_SAPLING_PAYMENT_ADDRESS, &address);
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let output = env
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.new_string(address_str)
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.expect("Couldn't create Java string!");
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Ok(output.into_inner())
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});
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unwrap_exc_or(&env, res, ptr::null_mut())
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}
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#[no_mangle]
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pub unsafe extern "C" fn Java_cash_z_ecc_android_sdk_tool_DerivationTool_deriveShieldedAddressFromViewingKey(
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env: JNIEnv<'_>,
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_: JClass<'_>,
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extfvk_string: JString<'_>,
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) -> jstring {
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let res = panic::catch_unwind(|| {
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let extfvk_string = utils::java_string_to_rust(&env, extfvk_string);
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let extfvk = match decode_extended_full_viewing_key(
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HRP_SAPLING_EXTENDED_FULL_VIEWING_KEY,
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&extfvk_string,
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) {
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Ok(Some(extfvk)) => extfvk,
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Ok(None) => {
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return Err(format_err!("Failed to parse viewing key string in order to derive the address. Deriving a viewing key from the string returned no results. Encoding was valid but type was incorrect."));
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}
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Err(e) => {
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return Err(format_err!(
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"Error while deriving viewing key from string input: {}",
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e
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));
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}
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};
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let address = extfvk.default_address().unwrap().1;
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let address_str = encode_payment_address(HRP_SAPLING_PAYMENT_ADDRESS, &address);
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let output = env
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.new_string(address_str)
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.expect("Couldn't create Java string!");
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Ok(output.into_inner())
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});
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unwrap_exc_or(&env, res, ptr::null_mut())
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}
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#[no_mangle]
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pub unsafe extern "C" fn Java_cash_z_ecc_android_sdk_tool_DerivationTool_deriveExtendedFullViewingKey(
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env: JNIEnv<'_>,
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_: JClass<'_>,
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extsk_string: JString<'_>,
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) -> jobjectArray {
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let res = panic::catch_unwind(|| {
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let extsk_string = utils::java_string_to_rust(&env, extsk_string);
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let extfvk = match decode_extended_spending_key(
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HRP_SAPLING_EXTENDED_SPENDING_KEY,
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&extsk_string,
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) {
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Ok(Some(extsk)) => ExtendedFullViewingKey::from(&extsk),
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Ok(None) => {
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return Err(format_err!("Deriving viewing key from spending key returned no results. Encoding was valid but type was incorrect."));
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}
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Err(e) => {
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return Err(format_err!(
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"Error while deriving viewing key from spending key: {}",
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e
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));
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}
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};
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let output = env
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.new_string(encode_extended_full_viewing_key(
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HRP_SAPLING_EXTENDED_FULL_VIEWING_KEY,
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&extfvk,
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))
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.expect("Couldn't create Java string!");
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Ok(output.into_inner())
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});
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unwrap_exc_or(&env, res, ptr::null_mut())
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}
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#[no_mangle]
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pub unsafe extern "C" fn Java_cash_z_ecc_android_sdk_jni_RustBackend_initBlocksTable(
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env: JNIEnv<'_>,
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_: JClass<'_>,
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db_data: JString<'_>,
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height: jint,
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hash_string: JString<'_>,
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time: jlong,
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sapling_tree_string: JString<'_>,
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) -> jboolean {
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let res = panic::catch_unwind(|| {
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let db_data = utils::java_string_to_rust(&env, db_data);
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let hash = {
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let mut hash = hex::decode(utils::java_string_to_rust(&env, hash_string)).unwrap();
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hash.reverse();
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BlockHash::from_slice(&hash)
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};
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let time = if time >= 0 && time <= jlong::from(u32::max_value()) {
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time as u32
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} else {
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return Err(format_err!("time argument must fit in a u32"));
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};
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let sapling_tree =
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hex::decode(utils::java_string_to_rust(&env, sapling_tree_string)).unwrap();
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debug!("initializing blocks table with height {}", height);
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match init_blocks_table(&db_data, height, hash, time, &sapling_tree) {
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Ok(()) => Ok(JNI_TRUE),
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Err(e) => Err(format_err!("Error while initializing blocks table: {}", e)),
|
|
}
|
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});
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unwrap_exc_or(&env, res, JNI_FALSE)
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}
|
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|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn Java_cash_z_ecc_android_sdk_jni_RustBackend_getAddress(
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env: JNIEnv<'_>,
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_: JClass<'_>,
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db_data: JString<'_>,
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account: jint,
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) -> jstring {
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let res = panic::catch_unwind(|| {
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let db_data = utils::java_string_to_rust(&env, db_data);
|
|
let account = if account >= 0 {
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account as u32
|
|
} else {
|
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return Err(format_err!("account argument must be positive"));
|
|
};
|
|
|
|
match get_address(&db_data, account) {
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Ok(addr) => {
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let output = env.new_string(addr).expect("Couldn't create Java string!");
|
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Ok(output.into_inner())
|
|
}
|
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Err(e) => Err(format_err!("Error while fetching address: {}", e)),
|
|
}
|
|
});
|
|
unwrap_exc_or(&env, res, ptr::null_mut())
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn Java_cash_z_ecc_android_sdk_jni_RustBackend_isValidShieldedAddress(
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|
env: JNIEnv<'_>,
|
|
_: JClass<'_>,
|
|
addr: JString<'_>,
|
|
) -> jboolean {
|
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let res = panic::catch_unwind(|| {
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let addr = utils::java_string_to_rust(&env, addr);
|
|
|
|
match RecipientAddress::from_str(&addr) {
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|
Some(addr) => match addr {
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|
RecipientAddress::Shielded(_) => Ok(JNI_TRUE),
|
|
RecipientAddress::Transparent(_) => Ok(JNI_FALSE),
|
|
},
|
|
None => Err(format_err!("Address is for the wrong network")),
|
|
}
|
|
});
|
|
unwrap_exc_or(&env, res, JNI_FALSE)
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn Java_cash_z_ecc_android_sdk_jni_RustBackend_isValidTransparentAddress(
|
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env: JNIEnv<'_>,
|
|
_: JClass<'_>,
|
|
addr: JString<'_>,
|
|
) -> jboolean {
|
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let res = panic::catch_unwind(|| {
|
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let addr = utils::java_string_to_rust(&env, addr);
|
|
|
|
match RecipientAddress::from_str(&addr) {
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|
Some(addr) => match addr {
|
|
RecipientAddress::Shielded(_) => Ok(JNI_FALSE),
|
|
RecipientAddress::Transparent(_) => Ok(JNI_TRUE),
|
|
},
|
|
None => Err(format_err!("Address is for the wrong network")),
|
|
}
|
|
});
|
|
unwrap_exc_or(&env, res, JNI_FALSE)
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn Java_cash_z_ecc_android_sdk_jni_RustBackend_getBalance(
|
|
env: JNIEnv<'_>,
|
|
_: JClass<'_>,
|
|
db_data: JString<'_>,
|
|
account: jint,
|
|
) -> jlong {
|
|
let res = panic::catch_unwind(|| {
|
|
let db_data = utils::java_string_to_rust(&env, db_data);
|
|
let account = if account >= 0 {
|
|
account as u32
|
|
} else {
|
|
return Err(format_err!("account argument must be positive"));
|
|
};
|
|
|
|
match get_balance(&db_data, account) {
|
|
Ok(balance) => Ok(balance.into()),
|
|
Err(e) => Err(format_err!("Error while fetching balance: {}", e)),
|
|
}
|
|
});
|
|
unwrap_exc_or(&env, res, -1)
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn Java_cash_z_ecc_android_sdk_jni_RustBackend_getVerifiedBalance(
|
|
env: JNIEnv<'_>,
|
|
_: JClass<'_>,
|
|
db_data: JString<'_>,
|
|
account: jint,
|
|
) -> jlong {
|
|
let res = panic::catch_unwind(|| {
|
|
let db_data = utils::java_string_to_rust(&env, db_data);
|
|
let account = if account >= 0 {
|
|
account as u32
|
|
} else {
|
|
return Err(format_err!("account argument must be positive"));
|
|
};
|
|
|
|
match get_verified_balance(&db_data, account) {
|
|
Ok(balance) => Ok(balance.into()),
|
|
Err(e) => Err(format_err!("Error while fetching verified balance: {}", e)),
|
|
}
|
|
});
|
|
unwrap_exc_or(&env, res, -1)
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn Java_cash_z_ecc_android_sdk_jni_RustBackend_getReceivedMemoAsUtf8(
|
|
env: JNIEnv<'_>,
|
|
_: JClass<'_>,
|
|
db_data: JString<'_>,
|
|
id_note: jlong,
|
|
) -> jstring {
|
|
let res = panic::catch_unwind(|| {
|
|
let db_data = utils::java_string_to_rust(&env, db_data);
|
|
|
|
let memo = match get_received_memo_as_utf8(db_data, id_note) {
|
|
Ok(memo) => memo.unwrap_or_default(),
|
|
Err(e) => return Err(format_err!("Error while fetching memo: {}", e)),
|
|
};
|
|
|
|
let output = env.new_string(memo).expect("Couldn't create Java string!");
|
|
Ok(output.into_inner())
|
|
});
|
|
unwrap_exc_or(&env, res, ptr::null_mut())
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn Java_cash_z_ecc_android_sdk_jni_RustBackend_getSentMemoAsUtf8(
|
|
env: JNIEnv<'_>,
|
|
_: JClass<'_>,
|
|
db_data: JString<'_>,
|
|
id_note: jlong,
|
|
) -> jstring {
|
|
let res = panic::catch_unwind(|| {
|
|
let db_data = utils::java_string_to_rust(&env, db_data);
|
|
|
|
let memo = match get_sent_memo_as_utf8(db_data, id_note) {
|
|
Ok(memo) => memo.unwrap_or_default(),
|
|
Err(e) => return Err(format_err!("Error while fetching memo: {}", e)),
|
|
};
|
|
|
|
let output = env.new_string(memo).expect("Couldn't create Java string!");
|
|
Ok(output.into_inner())
|
|
});
|
|
unwrap_exc_or(&env, res, ptr::null_mut())
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn Java_cash_z_ecc_android_sdk_jni_RustBackend_validateCombinedChain(
|
|
env: JNIEnv<'_>,
|
|
_: JClass<'_>,
|
|
db_cache: JString<'_>,
|
|
db_data: JString<'_>,
|
|
) -> jint {
|
|
let res = panic::catch_unwind(|| {
|
|
let db_cache = utils::java_string_to_rust(&env, db_cache);
|
|
let db_data = utils::java_string_to_rust(&env, db_data);
|
|
|
|
if let Err(e) = validate_combined_chain(&db_cache, &db_data) {
|
|
match e.kind() {
|
|
ErrorKind::InvalidChain(upper_bound, _) => Ok(*upper_bound),
|
|
_ => Err(format_err!("Error while validating chain: {}", e)),
|
|
}
|
|
} else {
|
|
// All blocks are valid, so "highest invalid block height" is below genesis.
|
|
Ok(-1)
|
|
}
|
|
});
|
|
unwrap_exc_or(&env, res, 0)
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn Java_cash_z_ecc_android_sdk_jni_RustBackend_rewindToHeight(
|
|
env: JNIEnv<'_>,
|
|
_: JClass<'_>,
|
|
db_data: JString<'_>,
|
|
height: jint,
|
|
) -> jboolean {
|
|
let res = panic::catch_unwind(|| {
|
|
let db_data = utils::java_string_to_rust(&env, db_data);
|
|
|
|
match rewind_to_height(&db_data, height) {
|
|
Ok(()) => Ok(JNI_TRUE),
|
|
Err(e) => Err(format_err!(
|
|
"Error while rewinding data DB to height {}: {}",
|
|
height,
|
|
e
|
|
)),
|
|
}
|
|
});
|
|
unwrap_exc_or(&env, res, JNI_FALSE)
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn Java_cash_z_ecc_android_sdk_jni_RustBackend_scanBlocks(
|
|
env: JNIEnv<'_>,
|
|
_: JClass<'_>,
|
|
db_cache: JString<'_>,
|
|
db_data: JString<'_>,
|
|
) -> jboolean {
|
|
let res = panic::catch_unwind(|| {
|
|
let db_cache = utils::java_string_to_rust(&env, db_cache);
|
|
let db_data = utils::java_string_to_rust(&env, db_data);
|
|
|
|
match scan_cached_blocks(&db_cache, &db_data, None) {
|
|
Ok(()) => Ok(JNI_TRUE),
|
|
Err(e) => Err(format_err!("Error while scanning blocks: {}", e)),
|
|
}
|
|
});
|
|
unwrap_exc_or(&env, res, JNI_FALSE)
|
|
}
|
|
|
|
// ADDED BY ANDROID
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn Java_cash_z_ecc_android_sdk_jni_RustBackend_scanBlockBatch(
|
|
env: JNIEnv<'_>,
|
|
_: JClass<'_>,
|
|
db_cache: JString<'_>,
|
|
db_data: JString<'_>,
|
|
limit: jint,
|
|
) -> jboolean {
|
|
let res = panic::catch_unwind(|| {
|
|
let db_cache = utils::java_string_to_rust(&env, db_cache);
|
|
let db_data = utils::java_string_to_rust(&env, db_data);
|
|
|
|
match scan_cached_blocks(&db_cache, &db_data, Some(limit)) {
|
|
Ok(()) => Ok(JNI_TRUE),
|
|
Err(e) => Err(format_err!("Error while scanning blocks: {}", e)),
|
|
}
|
|
});
|
|
unwrap_exc_or(&env, res, JNI_FALSE)
|
|
}
|
|
|
|
// ////////////////////////////////////////////////////////////////////////////////////////////////
|
|
// PROOF-OF-CONCEPT FOR PROTOBUF COMMUNICATION WITH SDK
|
|
// ////////////////////////////////////////////////////////////////////////////////////////////////
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn Java_cash_z_ecc_android_sdk_jni_RustBackend_parseTransactionDataList(
|
|
env: JNIEnv<'_>,
|
|
_: JClass<'_>,
|
|
tx_data_list: jbyteArray,
|
|
) -> jbyteArray {
|
|
let err_val: Vec<u8> = Vec::new();
|
|
let res_err = env.byte_array_from_slice(&err_val).unwrap();
|
|
let res = panic::catch_unwind(|| {
|
|
let tx_data_bytes = env.convert_byte_array(tx_data_list)?;
|
|
let input_tx_data = parse_from_bytes::<TransactionDataList>(&tx_data_bytes)?;
|
|
let mut tx_list = TransparentTransactionList::new();
|
|
let mut txs = protobuf::RepeatedField::<TransparentTransaction>::new();
|
|
for data in input_tx_data.data.iter() {
|
|
let mut tx = TransparentTransaction::new();
|
|
let parsed = Transaction::read(&data[..])?;
|
|
tx.set_expiryHeight(parsed.expiry_height);
|
|
// Note: the wrong value is returned here (negative numbers)
|
|
tx.set_value(i64::from(parsed.value_balance));
|
|
tx.set_hasShieldedSpends(parsed.shielded_spends.len() > 0);
|
|
tx.set_hasShieldedOutputs(parsed.shielded_outputs.len() > 0);
|
|
|
|
for (_n, vout) in parsed.vout.iter().enumerate() {
|
|
match vout.script_pubkey.address() {
|
|
// NOTE : this logic below doesn't work. No address is parsed.
|
|
Some(TransparentAddress::PublicKey(hash)) => {
|
|
tx.set_toAddress(hash.to_base58check(&B58_PUBKEY_ADDRESS_PREFIX, &[]));
|
|
}
|
|
_ => {}
|
|
}
|
|
}
|
|
|
|
txs.push(tx);
|
|
}
|
|
|
|
tx_list.set_transactions(txs);
|
|
match env.byte_array_from_slice(&tx_list.write_to_bytes()?) {
|
|
Ok(result) => Ok(result),
|
|
Err(e) => Err(format_err!("Error while parsing transaction: {}", e)),
|
|
}
|
|
});
|
|
unwrap_exc_or(&env, res, res_err)
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn Java_cash_z_ecc_android_sdk_tool_DerivationTool_deriveTransparentAddressFromSeed(
|
|
env: JNIEnv<'_>,
|
|
_: JClass<'_>,
|
|
seed: jbyteArray,
|
|
) -> jstring {
|
|
let res = panic::catch_unwind(|| {
|
|
let seed = env.convert_byte_array(seed).unwrap();
|
|
|
|
// modified from: https://github.com/adityapk00/zecwallet-light-cli/blob/master/lib/src/lightwallet.rs
|
|
|
|
let ext_t_key = ExtendedPrivKey::with_seed(&seed).unwrap();
|
|
let address_sk = ext_t_key
|
|
.derive_private_key(KeyIndex::hardened_from_normalize_index(44).unwrap())
|
|
.unwrap()
|
|
.derive_private_key(KeyIndex::hardened_from_normalize_index(COIN_TYPE).unwrap())
|
|
.unwrap()
|
|
.derive_private_key(KeyIndex::hardened_from_normalize_index(0).unwrap())
|
|
.unwrap()
|
|
.derive_private_key(KeyIndex::Normal(0))
|
|
.unwrap()
|
|
.derive_private_key(KeyIndex::Normal(0))
|
|
.unwrap()
|
|
.private_key;
|
|
let secp = Secp256k1::new();
|
|
let pk = PublicKey::from_secret_key(&secp, &address_sk);
|
|
let mut hash160 = ripemd160::Ripemd160::new();
|
|
hash160.update(Sha256::digest(&pk.serialize()[..].to_vec()));
|
|
let address_string = hash160
|
|
.finalize()
|
|
.to_base58check(&B58_PUBKEY_ADDRESS_PREFIX, &[]);
|
|
|
|
let output = env
|
|
.new_string(address_string)
|
|
.expect("Couldn't create Java string!");
|
|
Ok(output.into_inner())
|
|
});
|
|
unwrap_exc_or(&env, res, ptr::null_mut())
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn Java_cash_z_ecc_android_sdk_jni_RustBackend_decryptAndStoreTransaction(
|
|
env: JNIEnv<'_>,
|
|
_: JClass<'_>,
|
|
db_data: JString<'_>,
|
|
tx: jbyteArray,
|
|
) -> jboolean {
|
|
let res = panic::catch_unwind(|| {
|
|
let db_data = utils::java_string_to_rust(&env, db_data);
|
|
let tx_bytes = env.convert_byte_array(tx).unwrap();
|
|
let tx = Transaction::read(&tx_bytes[..])?;
|
|
|
|
match decrypt_and_store_transaction(&db_data, &tx) {
|
|
Ok(()) => Ok(JNI_TRUE),
|
|
Err(e) => Err(format_err!("Error while decrypting transaction: {}", e)),
|
|
}
|
|
});
|
|
unwrap_exc_or(&env, res, JNI_FALSE)
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn Java_cash_z_ecc_android_sdk_jni_RustBackend_createToAddress(
|
|
env: JNIEnv<'_>,
|
|
_: JClass<'_>,
|
|
db_data: JString<'_>,
|
|
consensus_branch_id: jlong,
|
|
account: jint,
|
|
extsk: JString<'_>,
|
|
to: JString<'_>,
|
|
value: jlong,
|
|
memo: jbyteArray,
|
|
spend_params: JString<'_>,
|
|
output_params: JString<'_>,
|
|
) -> jlong {
|
|
let res = panic::catch_unwind(|| {
|
|
let db_data = utils::java_string_to_rust(&env, db_data);
|
|
let account = if account >= 0 {
|
|
account as u32
|
|
} else {
|
|
return Err(format_err!("account argument must be positive"));
|
|
};
|
|
let extsk = utils::java_string_to_rust(&env, extsk);
|
|
let to = utils::java_string_to_rust(&env, to);
|
|
let value =
|
|
Amount::from_i64(value).map_err(|()| format_err!("Invalid amount, out of range"))?;
|
|
if value.is_negative() {
|
|
return Err(format_err!("Amount is negative"));
|
|
}
|
|
let memo_bytes = env.convert_byte_array(memo).unwrap();
|
|
let spend_params = utils::java_string_to_rust(&env, spend_params);
|
|
let output_params = utils::java_string_to_rust(&env, output_params);
|
|
|
|
let extsk = match decode_extended_spending_key(HRP_SAPLING_EXTENDED_SPENDING_KEY, &extsk) {
|
|
Ok(Some(extsk)) => extsk,
|
|
Ok(None) => {
|
|
return Err(format_err!("ExtendedSpendingKey is for the wrong network"));
|
|
}
|
|
Err(e) => {
|
|
return Err(format_err!("Invalid ExtendedSpendingKey: {}", e));
|
|
}
|
|
};
|
|
|
|
let to = match RecipientAddress::from_str(&to) {
|
|
Some(to) => to,
|
|
None => {
|
|
return Err(format_err!("Address is for the wrong network"));
|
|
}
|
|
};
|
|
|
|
let memo = Memo::from_bytes(&memo_bytes);
|
|
|
|
let prover = LocalTxProver::new(Path::new(&spend_params), Path::new(&output_params));
|
|
|
|
let branch_id = match BranchId::try_from(consensus_branch_id as u32) {
|
|
Ok(branch) => branch,
|
|
Err(e) => {
|
|
return Err(format_err!("Invalid consensus branch id: {}", e));
|
|
}
|
|
};
|
|
|
|
// let branch = if
|
|
create_to_address(
|
|
&db_data,
|
|
branch_id,
|
|
prover,
|
|
(account, &extsk),
|
|
&to,
|
|
value,
|
|
memo,
|
|
OvkPolicy::Sender,
|
|
)
|
|
.map_err(|e| format_err!("Error while creating transaction: {}", e))
|
|
});
|
|
unwrap_exc_or(&env, res, -1)
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn Java_cash_z_ecc_android_sdk_jni_RustBackend_branchIdForHeight(
|
|
env: JNIEnv<'_>,
|
|
_: JClass<'_>,
|
|
height: jint,
|
|
) -> jint {
|
|
let res = panic::catch_unwind(|| {
|
|
let branch: BranchId = BranchId::for_height::<Network>(height as u32);
|
|
let branch_id: u32 = u32::from(branch);
|
|
debug!("For height {} found consensus branch {:?}", height, branch);
|
|
Ok(branch_id as i32)
|
|
});
|
|
unwrap_exc_or(&env, res, -1)
|
|
}
|
|
|
|
//
|
|
// Helper code from: https://github.com/adityapk00/zecwallet-light-cli/blob/master/lib/src/lightwallet.rs
|
|
//
|
|
|
|
/// A trait for converting a [u8] to base58 encoded string.
|
|
pub trait ToBase58Check {
|
|
/// Converts a value of `self` to a base58 value, returning the owned string.
|
|
/// The version is a coin-specific prefix that is added.
|
|
/// The suffix is any bytes that we want to add at the end (like the "iscompressed" flag for
|
|
/// Secret key encoding)
|
|
fn to_base58check(&self, version: &[u8], suffix: &[u8]) -> String;
|
|
}
|
|
impl ToBase58Check for [u8] {
|
|
fn to_base58check(&self, version: &[u8], suffix: &[u8]) -> String {
|
|
let mut payload: Vec<u8> = Vec::new();
|
|
payload.extend_from_slice(version);
|
|
payload.extend_from_slice(self);
|
|
payload.extend_from_slice(suffix);
|
|
|
|
let mut checksum = double_sha256(&payload);
|
|
payload.append(&mut checksum[..4].to_vec());
|
|
payload.to_base58()
|
|
}
|
|
}
|
|
pub fn double_sha256(payload: &[u8]) -> Vec<u8> {
|
|
let h1 = Sha256::digest(&payload);
|
|
let h2 = Sha256::digest(&h1);
|
|
h2.to_vec()
|
|
}
|