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Cleanup transaction with offset (#1514)

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* cleanup build::transaction_with_offset

* rustfmt
This commit is contained in:
Antioch Peverell 2018-09-12 12:17:36 +01:00 committed by GitHub
parent 07eefc4d6b
commit dca0d52dcd
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GPG key ID: 4AEE18F83AFDEB23
5 changed files with 76 additions and 68 deletions
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82
chain/tests/test_txhashset.rs
View file

@ -16,12 +16,12 @@ extern crate grin_chain as chain;
extern crate grin_core as core;
extern crate grin_keychain as keychain;
extern crate grin_store as store;
extern crate grin_wallet as wallet;
extern crate grin_util as util;
extern crate grin_wallet as wallet;
use std::collections::HashSet;
use std::iter::FromIterator;
use std::fs::{self, File, OpenOptions};
use std::iter::FromIterator;
use std::path::{Path, PathBuf};
use std::sync::Arc;
@ -81,12 +81,9 @@ fn test_some_raw_txs() {
let coinbase_reward = 60_000_000_000;
// tx1 spends the original coinbase output from the block
let tx1 = build::transaction_with_offset(
let tx1 = build::transaction(
vec![
build::coinbase_input(
coinbase_reward,
key_id1.clone(),
),
build::coinbase_input(coinbase_reward, key_id1.clone()),
build::output(100, key_id2.clone()),
build::output(150, key_id3.clone()),
],
@ -95,19 +92,16 @@ fn test_some_raw_txs() {
// tx2 attempts to "double spend" the coinbase output from the block (conflicts
// with tx1)
let tx2 = build::transaction_with_offset(
let tx2 = build::transaction(
vec![
build::coinbase_input(
coinbase_reward,
key_id1.clone(),
),
build::coinbase_input(coinbase_reward, key_id1.clone()),
build::output(100, key_id4.clone()),
],
&keychain,
).unwrap();
// tx3 spends one output from tx1
let tx3 = build::transaction_with_offset(
let tx3 = build::transaction(
vec![
build::input(100, key_id2.clone()),
build::output(90, key_id5.clone()),
@ -116,7 +110,7 @@ fn test_some_raw_txs() {
).unwrap();
// tx4 spends the other output from tx1 and the output from tx3
let tx4 = build::transaction_with_offset(
let tx4 = build::transaction(
vec![
build::input(150, key_id3.clone()),
build::input(90, key_id5.clone()),
@ -160,44 +154,84 @@ fn test_unexpected_zip() {
assert!(txhashset::zip_read(db_root.clone(), &BlockHeader::default()).is_ok());
// Check that the temp dir dos not contains the strange files
let txhashset_zip_path = Path::new(&db_root).join("txhashset_zip");
assert!(txhashset_contains_expected_files("txhashset_zip".to_string(), txhashset_zip_path.clone()));
assert!(txhashset_contains_expected_files(
"txhashset_zip".to_string(),
txhashset_zip_path.clone()
));
fs::remove_dir_all(Path::new(&db_root).join("txhashset_zip")).unwrap();
let zip_file = File::open(zip_path).unwrap();
assert!(txhashset::zip_write(db_root.clone(), zip_file, &BlockHeader::default()).is_ok());
// Check that the txhashset dir dos not contains the strange files
let txhashset_path = Path::new(&db_root).join("txhashset");
assert!(txhashset_contains_expected_files("txhashset".to_string(), txhashset_path.clone()));
assert!(txhashset_contains_expected_files(
"txhashset".to_string(),
txhashset_path.clone()
));
fs::remove_dir_all(Path::new(&db_root).join("txhashset")).unwrap();
}
fn write_file (db_root: String) {
fn write_file(db_root: String) {
OpenOptions::new()
.create(true)
.write(true)
.open(Path::new(&db_root).join("txhashset").join("kernel").join("strange0")).unwrap();
.open(
Path::new(&db_root)
.join("txhashset")
.join("kernel")
.join("strange0"),
)
.unwrap();
OpenOptions::new()
.create(true)
.write(true)
.open(Path::new(&db_root).join("txhashset").join("strange1")).unwrap();
.open(Path::new(&db_root).join("txhashset").join("strange1"))
.unwrap();
fs::create_dir(Path::new(&db_root).join("txhashset").join("strange_dir")).unwrap();
OpenOptions::new()
.create(true)
.write(true)
.open(Path::new(&db_root).join("txhashset").join("strange_dir").join("strange2")).unwrap();
fs::create_dir(Path::new(&db_root).join("txhashset").join("strange_dir").join("strange_subdir")).unwrap();
.open(
Path::new(&db_root)
.join("txhashset")
.join("strange_dir")
.join("strange2"),
)
.unwrap();
fs::create_dir(
Path::new(&db_root)
.join("txhashset")
.join("strange_dir")
.join("strange_subdir"),
).unwrap();
OpenOptions::new()
.create(true)
.write(true)
.open(Path::new(&db_root).join("txhashset").join("strange_dir").join("strange_subdir").join("strange3")).unwrap();
.open(
Path::new(&db_root)
.join("txhashset")
.join("strange_dir")
.join("strange_subdir")
.join("strange3"),
)
.unwrap();
}
fn txhashset_contains_expected_files(dirname: String, path_buf: PathBuf) -> bool {
let list_zip_files = file::list_files(path_buf.into_os_string().into_string().unwrap());
let zip_files_hashset: HashSet<_> = HashSet::from_iter(list_zip_files.iter().cloned());
let expected_files = vec![dirname, "output".to_string(), "rangeproof".to_string(), "kernel".to_string(), "pmmr_hash.bin".to_string(), "pmmr_data.bin".to_string()];
let expected_files = vec![
dirname,
"output".to_string(),
"rangeproof".to_string(),
"kernel".to_string(),
"pmmr_hash.bin".to_string(),
"pmmr_data.bin".to_string(),
];
let expected_files_hashset = HashSet::from_iter(expected_files.iter().cloned());
let intersection: HashSet<_> = zip_files_hashset.difference(&expected_files_hashset).collect();
let intersection: HashSet<_> = zip_files_hashset
.difference(&expected_files_hashset)
.collect();
if intersection.is_empty() {
true
} else {

4
core/fuzz/src/main.rs
View file

@ -7,7 +7,7 @@ use grin_core::core::{Block, BlockHeader, CompactBlock, Transaction};
use grin_core::ser;
use grin_keychain::keychain::ExtKeychain;
use grin_keychain::Keychain;
use grin_wallet::libtx::build::{input, output, transaction_with_offset, with_fee};
use grin_wallet::libtx::build::{input, output, transaction, with_fee};
use grin_wallet::libtx::reward;
use std::fs::{self, File};
use std::path::Path;
@ -69,7 +69,7 @@ fn tx() -> Transaction {
let key_id2 = keychain.derive_key_id(2).unwrap();
let key_id3 = keychain.derive_key_id(3).unwrap();
transaction_with_offset(
transaction(
vec![
input(10, key_id1),
input(11, key_id2),

6
core/tests/common/mod.rs
View file

@ -33,7 +33,7 @@ pub fn tx2i1o() -> Transaction {
let key_id2 = keychain.derive_key_id(2).unwrap();
let key_id3 = keychain.derive_key_id(3).unwrap();
build::transaction_with_offset(
build::transaction(
vec![
input(10, key_id1),
input(11, key_id2),
@ -50,7 +50,7 @@ pub fn tx1i1o() -> Transaction {
let key_id1 = keychain.derive_key_id(1).unwrap();
let key_id2 = keychain.derive_key_id(2).unwrap();
build::transaction_with_offset(
build::transaction(
vec![input(5, key_id1), output(3, key_id2), with_fee(2)],
&keychain,
).unwrap()
@ -65,7 +65,7 @@ pub fn tx1i2o() -> Transaction {
let key_id2 = keychain.derive_key_id(2).unwrap();
let key_id3 = keychain.derive_key_id(3).unwrap();
build::transaction_with_offset(
build::transaction(
vec![
input(6, key_id1),
output(3, key_id2),

2
core/tests/transaction.rs
View file

@ -20,7 +20,7 @@ extern crate grin_wallet as wallet;
pub mod common;
use grin_core::core::{Output, OutputFeatures, Transaction};
use grin_core::core::{Output, OutputFeatures};
use grin_core::ser;
use keychain::{ExtKeychain, Keychain};
use wallet::libtx::proof;

40
wallet/src/libtx/build.rs
View file

@ -215,35 +215,6 @@ pub fn transaction<K>(
elems: Vec<Box<Append<K>>>,
keychain: &K,
) -> Result<Transaction, keychain::Error>
where
K: Keychain,
{
let (mut tx, blind_sum) = partial_transaction(elems, keychain)?;
assert_eq!(tx.kernels().len(), 1);
let kern = {
let mut kern = tx.kernels_mut().remove(0);
let msg = secp::Message::from_slice(&kernel_sig_msg(kern.fee, kern.lock_height))?;
let skey = blind_sum.secret_key(&keychain.secp())?;
kern.excess = keychain.secp().commit(0, skey)?;
kern.excess_sig = aggsig::sign_with_blinding(&keychain.secp(), &msg, &blind_sum).unwrap();
kern
};
// Now build a new tx with this single kernel.
let tx = tx.with_kernel(kern);
assert_eq!(tx.kernels().len(), 1);
Ok(tx)
}
/// Builds a complete transaction, splitting the key and
/// setting the excess, excess_sig and tx offset as necessary.
pub fn transaction_with_offset<K>(
elems: Vec<Box<Append<K>>>,
keychain: &K,
) -> Result<Transaction, keychain::Error>
where
K: Keychain,
{
@ -254,21 +225,24 @@ where
);
let blind_sum = ctx.keychain.blind_sum(&sum)?;
// Split the key so we can generate an offset for the tx.
let split = blind_sum.split(&keychain.secp())?;
let k1 = split.blind_1;
let k2 = split.blind_2;
// Construct the message to be signed.
let msg = secp::Message::from_slice(&kernel_sig_msg(kern.fee, kern.lock_height))?;
// generate kernel excess and excess_sig using the split key k1
// Generate kernel excess and excess_sig using the split key k1.
let skey = k1.secret_key(&keychain.secp())?;
kern.excess = ctx.keychain.secp().commit(0, skey)?;
kern.excess_sig = aggsig::sign_with_blinding(&keychain.secp(), &msg, &k1).unwrap();
// store the kernel offset (k2) on the tx itself
// commitments will sum correctly when including the offset
// Store the kernel offset (k2) on the tx.
// Commitments will sum correctly when accounting for the offset.
tx.offset = k2.clone();
// Set the kernel on the tx (assert this is now a single-kernel tx).
assert!(tx.kernels().is_empty());
let tx = tx.with_kernel(kern);
assert_eq!(tx.kernels().len(), 1);
@ -320,7 +294,7 @@ mod test {
let vc = verifier_cache();
let tx = transaction_with_offset(
let tx = transaction(
vec![
input(10, key_id1),
input(12, key_id2),