// createServerTester creates a server tester object that is ready for testing,
// including money in the wallet and all modules initialized.
func createServerTester(name string) (*serverTester, error) {
// createServerTester is expensive, and therefore should not be called
// during short tests.
if testing.Short() {
panic("createServerTester called during short tests")
}
// Create the testing directory.
testdir := build.TempDir("api", name)
key, err := crypto.GenerateTwofishKey()
if err != nil {
return nil, err
}
st, err := assembleServerTester(key, testdir)
if err != nil {
return nil, err
}
// Mine blocks until the wallet has confirmed money.
for i := types.BlockHeight(0); i <= types.MaturityDelay; i++ {
_, err := st.miner.AddBlock()
if err != nil {
return nil, err
}
}
return st, nil
}
// createAuthenticatedServerTester creates an authenticated server tester
// object that is ready for testing, including money in the wallet and all
// modules initalized.
func createAuthenticatedServerTester(name string, password string) (*serverTester, error) {
// createAuthenticatedServerTester should not get called during short
// tests, as it takes a long time to run.
if testing.Short() {
panic("assembleServerTester called during short tests")
}
// Create the testing directory.
testdir := build.TempDir("authenticated-api", name)
key, err := crypto.GenerateTwofishKey()
if err != nil {
return nil, err
}
st, err := assembleAuthenticatedServerTester(password, key, testdir)
if err != nil {
return nil, err
}
// Mine blocks until the wallet has confirmed money.
for i := types.BlockHeight(0); i <= types.MaturityDelay; i++ {
_, err := st.miner.AddBlock()
if err != nil {
return nil, err
}
}
return st, nil
}
// newRenterTester creates a ready-to-use renter tester with money in the
// wallet.
func newRenterTester(name string) (*renterTester, error) {
// Create the modules.
testdir := build.TempDir("renter", name)
g, err := gateway.New("localhost:0", false, filepath.Join(testdir, modules.GatewayDir))
if err != nil {
return nil, err
}
cs, err := consensus.New(g, false, filepath.Join(testdir, modules.ConsensusDir))
if err != nil {
return nil, err
}
tp, err := transactionpool.New(cs, g, filepath.Join(testdir, modules.TransactionPoolDir))
if err != nil {
return nil, err
}
w, err := wallet.New(cs, tp, filepath.Join(testdir, modules.WalletDir))
if err != nil {
return nil, err
}
key, err := crypto.GenerateTwofishKey()
if err != nil {
return nil, err
}
_, err = w.Encrypt(key)
if err != nil {
return nil, err
}
err = w.Unlock(key)
if err != nil {
return nil, err
}
r, err := New(cs, w, tp, filepath.Join(testdir, modules.RenterDir))
if err != nil {
return nil, err
}
m, err := miner.New(cs, tp, w, filepath.Join(testdir, modules.MinerDir))
if err != nil {
return nil, err
}
// Assemble all pieces into a renter tester.
rt := &renterTester{
cs: cs,
gateway: g,
miner: m,
tpool: tp,
wallet: w,
renter: r,
}
// Mine blocks until there is money in the wallet.
for i := types.BlockHeight(0); i <= types.MaturityDelay; i++ {
_, err := rt.miner.AddBlock()
if err != nil {
return nil, err
}
}
return rt, nil
}
// createExplorerTester creates a tester object for the explorer module.
func createExplorerTester(name string) (*explorerTester, error) {
// Create and assemble the dependencies.
testdir := build.TempDir(modules.HostDir, name)
g, err := gateway.New(":0", filepath.Join(testdir, modules.GatewayDir))
if err != nil {
return nil, err
}
cs, err := consensus.New(g, filepath.Join(testdir, modules.ConsensusDir))
if err != nil {
return nil, err
}
tp, err := transactionpool.New(cs, g)
if err != nil {
return nil, err
}
w, err := wallet.New(cs, tp, filepath.Join(testdir, modules.WalletDir))
if err != nil {
return nil, err
}
key, err := crypto.GenerateTwofishKey()
if err != nil {
return nil, err
}
_, err = w.Encrypt(key)
if err != nil {
return nil, err
}
err = w.Unlock(key)
if err != nil {
return nil, err
}
m, err := miner.New(cs, tp, w, filepath.Join(testdir, modules.RenterDir))
if err != nil {
return nil, err
}
e, err := New(cs, filepath.Join(testdir, modules.ExplorerDir))
if err != nil {
return nil, err
}
et := &explorerTester{
cs: cs,
gateway: g,
miner: m,
tpool: tp,
wallet: w,
walletKey: key,
explorer: e,
}
// Mine until the wallet has money.
for i := types.BlockHeight(0); i <= types.MaturityDelay; i++ {
b, _ := et.miner.FindBlock()
err = et.cs.AcceptBlock(b)
if err != nil {
return nil, err
}
}
return et, nil
}
// createConsensusSetTester creates a consensusSetTester that's ready for use.
func createConsensusSetTester(name string) (*consensusSetTester, error) {
testdir := build.TempDir(modules.ConsensusDir, name)
// Create modules.
g, err := gateway.New(":0", filepath.Join(testdir, modules.GatewayDir))
if err != nil {
return nil, err
}
cs, err := New(g, filepath.Join(testdir, modules.ConsensusDir))
if err != nil {
return nil, err
}
tp, err := transactionpool.New(cs, g)
if err != nil {
return nil, err
}
w, err := wallet.New(cs, tp, filepath.Join(testdir, modules.WalletDir))
if err != nil {
return nil, err
}
key, err := crypto.GenerateTwofishKey()
if err != nil {
return nil, err
}
_, err = w.Encrypt(key)
if err != nil {
return nil, err
}
err = w.Unlock(key)
if err != nil {
return nil, err
}
m, err := miner.New(cs, tp, w, filepath.Join(testdir, modules.MinerDir))
if err != nil {
return nil, err
}
// Assemble all objects into a consensusSetTester.
cst := &consensusSetTester{
gateway: g,
miner: m,
tpool: tp,
wallet: w,
walletKey: key,
cs: cs,
persistDir: testdir,
}
// Mine until the wallet has money.
for i := types.BlockHeight(0); i <= types.MaturityDelay; i++ {
b, _ := cst.miner.FindBlock()
err = cst.cs.AcceptBlock(b)
if err != nil {
return nil, err
}
}
return cst, nil
}
// newHostDBTester creates a ready-to-use hostdb tester with money in the
// wallet.
func newHostDBTester(name string) (*hostdbTester, error) {
// Create the modules.
testdir := build.TempDir("hostdb", name)
g, err := gateway.New(":0", filepath.Join(testdir, modules.GatewayDir))
if err != nil {
return nil, err
}
cs, err := consensus.New(g, filepath.Join(testdir, modules.ConsensusDir))
if err != nil {
return nil, err
}
tp, err := transactionpool.New(cs, g)
if err != nil {
return nil, err
}
w, err := modWallet.New(cs, tp, filepath.Join(testdir, modules.WalletDir))
if err != nil {
return nil, err
}
key, err := crypto.GenerateTwofishKey()
if err != nil {
return nil, err
}
_, err = w.Encrypt(key)
if err != nil {
return nil, err
}
err = w.Unlock(key)
if err != nil {
return nil, err
}
hdb, err := New(cs, w, tp, filepath.Join(testdir, modules.RenterDir))
if err != nil {
return nil, err
}
m, err := miner.New(cs, tp, w, filepath.Join(testdir, modules.MinerDir))
if err != nil {
return nil, err
}
// Assemble all pieces into a hostdb tester.
ht := &hostdbTester{
cs: cs,
gateway: g,
miner: m,
tpool: tp,
wallet: w,
hostdb: hdb,
}
// Mine blocks until there is money in the wallet.
for i := types.BlockHeight(0); i <= types.MaturityDelay; i++ {
_, err := ht.miner.AddBlock()
if err != nil {
return nil, err
}
}
return ht, nil
}
// newTestingWallet is a helper function that creates a ready-to-use wallet
// and mines some coins into it.
func newTestingWallet(testdir string, cs modules.ConsensusSet, tp modules.TransactionPool) (modules.Wallet, error) {
w, err := modWallet.New(cs, tp, filepath.Join(testdir, modules.WalletDir))
if err != nil {
return nil, err
}
key, err := crypto.GenerateTwofishKey()
if err != nil {
return nil, err
}
if !w.Encrypted() {
_, err = w.Encrypt(key)
if err != nil {
return nil, err
}
}
err = w.Unlock(key)
if err != nil {
return nil, err
}
// give it some money
m, err := miner.New(cs, tp, w, filepath.Join(testdir, modules.MinerDir))
if err != nil {
return nil, err
}
for i := types.BlockHeight(0); i <= types.MaturityDelay; i++ {
_, err := m.AddBlock()
if err != nil {
return nil, err
}
}
return w, nil
}
// newFile creates a new file object.
func newFile(name string, code modules.ErasureCoder, pieceSize, fileSize uint64) *file {
key, _ := crypto.GenerateTwofishKey()
return &file{
name: name,
size: fileSize,
contracts: make(map[modules.NetAddress]fileContract),
masterKey: key,
erasureCode: code,
pieceSize: pieceSize,
}
}
// createConsensusSetTester creates a consensusSetTester that's ready for use.
func createConsensusSetTester(name string) (*consensusSetTester, error) {
testdir := build.TempDir(modules.ConsensusDir, name)
// Create modules.
g, err := gateway.New(":0", filepath.Join(testdir, modules.GatewayDir))
if err != nil {
return nil, err
}
cs, err := New(g, filepath.Join(testdir, modules.ConsensusDir))
if err != nil {
return nil, err
}
tp, err := transactionpool.New(cs, g)
if err != nil {
return nil, err
}
w, err := wallet.New(cs, tp, filepath.Join(testdir, modules.WalletDir))
if err != nil {
return nil, err
}
key, err := crypto.GenerateTwofishKey()
if err != nil {
return nil, err
}
_, err = w.Encrypt(key)
if err != nil {
return nil, err
}
err = w.Unlock(key)
if err != nil {
return nil, err
}
m, err := miner.New(cs, tp, w, filepath.Join(testdir, modules.MinerDir))
if err != nil {
return nil, err
}
// Assemble all objects into a consensusSetTester.
cst := &consensusSetTester{
gateway: g,
miner: m,
tpool: tp,
wallet: w,
walletKey: key,
cs: cs,
persistDir: testdir,
}
cst.addSiafunds()
cst.mineSiacoins()
return cst, nil
}
// reorgToBlank creates a bunch of empty blocks on top of the genesis block
// that reorgs the explorer to a state of all blank blocks.
func (et *explorerTester) reorgToBlank() error {
// Get a unique directory name to house the persistence of the miner
// dependencies.
dir := et.testdir + " - " + persist.RandomSuffix()
// Create a miner and all dependencies to create an alternate chain.
g, err := gateway.New("localhost:0", false, filepath.Join(dir, modules.GatewayDir))
if err != nil {
return err
}
cs, err := consensus.New(g, false, filepath.Join(dir, modules.ConsensusDir))
if err != nil {
return err
}
tp, err := transactionpool.New(cs, g, filepath.Join(dir, modules.TransactionPoolDir))
if err != nil {
return err
}
w, err := wallet.New(cs, tp, filepath.Join(dir, modules.WalletDir))
if err != nil {
return err
}
key, err := crypto.GenerateTwofishKey()
if err != nil {
return err
}
_, err = w.Encrypt(key)
if err != nil {
return err
}
err = w.Unlock(key)
if err != nil {
return err
}
m, err := miner.New(cs, tp, w, filepath.Join(dir, modules.RenterDir))
if err != nil {
return err
}
// Mine blocks until the height is higher than the existing consensus,
// submitting each block to the explorerTester.
currentHeight := cs.Height()
for i := types.BlockHeight(0); i <= currentHeight+1; i++ {
block, err := m.AddBlock()
if err != nil {
return err
}
et.cs.AcceptBlock(block) // error is not checked, will not always be nil
}
return nil
}
// newTestingFile initializes a file object with random parameters.
func newTestingFile() *file {
key, _ := crypto.GenerateTwofishKey()
data, _ := crypto.RandBytes(8)
nData, _ := crypto.RandIntn(10)
nParity, _ := crypto.RandIntn(10)
rsc, _ := NewRSCode(nData+1, nParity+1)
return &file{
name: "testfile-" + strconv.Itoa(int(data[0])),
size: encoding.DecUint64(data[1:5]),
masterKey: key,
erasureCode: rsc,
pieceSize: encoding.DecUint64(data[6:8]),
}
}
// initWallet creates a wallet key, initializes the host wallet, unlocks it,
// and then stores the key in the host tester.
func (ht *hostTester) initWallet() error {
// Create the keys for the wallet and unlock it.
key, err := crypto.GenerateTwofishKey()
if err != nil {
return err
}
ht.walletKey = key
_, err = ht.wallet.Encrypt(key)
if err != nil {
return err
}
err = ht.wallet.Unlock(key)
if err != nil {
return err
}
return nil
}
// blankServerTester creates a server tester object that is ready for testing,
// without any money in the wallet.
func blankServerTester(name string) (*serverTester, error) {
// createServerTester is expensive, and therefore should not be called
// during short tests.
if testing.Short() {
panic("blankServerTester called during short tests")
}
// Create the server tester with key.
testdir := build.TempDir("api", name)
key, err := crypto.GenerateTwofishKey()
if err != nil {
return nil, err
}
st, err := assembleServerTester(key, testdir)
if err != nil {
return nil, err
}
return st, nil
}
// createServerTester creates a server tester object that is ready for testing,
// including money in the wallet and all modules initalized.
func createServerTester(name string) (*serverTester, error) {
// Create the testing directory.
testdir := build.TempDir("api", name)
key, err := crypto.GenerateTwofishKey()
if err != nil {
return nil, err
}
st, err := assembleServerTester(key, testdir)
if err != nil {
return nil, err
}
// Mine blocks until the wallet has confirmed money.
for i := types.BlockHeight(0); i <= types.MaturityDelay; i++ {
_, err := st.miner.AddBlock()
if err != nil {
return nil, err
}
}
return st, nil
}
// TestIntegrationMinimumValidChildTimestamp probes the
// MinimumValidChildTimestamp method of the consensus type.
func TestIntegrationMinimumValidChildTimestamp(t *testing.T) {
if testing.Short() {
t.SkipNow()
}
t.Parallel()
// Create a custom consensus set to control the blocks.
testdir := build.TempDir(modules.ConsensusDir, "TestIntegrationMinimumValidChildTimestamp")
g, err := gateway.New("localhost:0", false, filepath.Join(testdir, modules.GatewayDir))
if err != nil {
t.Fatal(err)
}
cs, err := New(g, false, filepath.Join(testdir, modules.ConsensusDir))
if err != nil {
t.Fatal(err)
}
tp, err := transactionpool.New(cs, g, filepath.Join(testdir, modules.TransactionPoolDir))
if err != nil {
t.Fatal(err)
}
w, err := wallet.New(cs, tp, filepath.Join(testdir, modules.WalletDir))
if err != nil {
t.Fatal(err)
}
key, err := crypto.GenerateTwofishKey()
if err != nil {
t.Fatal(err)
}
_, err = w.Encrypt(key)
if err != nil {
t.Fatal(err)
}
err = w.Unlock(key)
if err != nil {
t.Fatal(err)
}
m, err := miner.New(cs, tp, w, filepath.Join(testdir, modules.MinerDir))
if err != nil {
t.Fatal(err)
}
defer g.Close()
// The earliest child timestamp of the genesis block should be the
// timestamp of the genesis block.
genesisTime := cs.blockRoot.Block.Timestamp
earliest, ok := cs.MinimumValidChildTimestamp(cs.blockRoot.Block.ID())
if !ok || genesisTime != earliest {
t.Error("genesis block earliest timestamp producing unexpected results")
}
timestampOffsets := []types.Timestamp{1, 3, 2, 5, 4, 6, 7, 8, 9, 10}
blockIDs := []types.BlockID{cs.blockRoot.Block.ID()}
for _, offset := range timestampOffsets {
bfw, target, err := m.BlockForWork()
if err != nil {
t.Fatal(err)
}
bfw.Timestamp = genesisTime + offset
solvedBlock, _ := m.SolveBlock(bfw, target)
err = cs.AcceptBlock(solvedBlock)
if err != nil {
t.Fatal(err)
}
blockIDs = append(blockIDs, solvedBlock.ID())
}
// Median should be genesisTime for 6th block.
earliest, ok = cs.MinimumValidChildTimestamp(blockIDs[5])
if !ok || earliest != genesisTime {
t.Error("incorrect child timestamp")
}
// Median should be genesisTime+1 for 7th block.
earliest, ok = cs.MinimumValidChildTimestamp(blockIDs[6])
if !ok || earliest != genesisTime+1 {
t.Error("incorrect child timestamp")
}
// Median should be genesisTime + 5 for pb11.
earliest, ok = cs.MinimumValidChildTimestamp(blockIDs[10])
if !ok || earliest != genesisTime+5 {
t.Error("incorrect child timestamp")
}
}
// createServerTester creates a server tester object that is ready for testing,
// including money in the wallet and all modules initalized.
func createServerTester(name string) (*serverTester, error) {
// Create the testing directory and assign the api port.
testdir := build.TempDir("api", name)
APIAddr := ":" + strconv.Itoa(APIPort)
APIPort++
// Create the modules.
g, err := gateway.New(":0", filepath.Join(testdir, modules.GatewayDir))
if err != nil {
return nil, err
}
cs, err := consensus.New(g, filepath.Join(testdir, modules.ConsensusDir))
if err != nil {
return nil, err
}
tp, err := transactionpool.New(cs, g)
if err != nil {
return nil, err
}
w, err := wallet.New(cs, tp, filepath.Join(testdir, modules.WalletDir))
if err != nil {
return nil, err
}
key, err := crypto.GenerateTwofishKey()
if err != nil {
return nil, err
}
_, err = w.Encrypt(key)
if err != nil {
return nil, err
}
err = w.Unlock(key)
if err != nil {
return nil, err
}
m, err := miner.New(cs, tp, w, filepath.Join(testdir, modules.MinerDir))
if err != nil {
return nil, err
}
hdb, err := hostdb.New(cs, g)
if err != nil {
return nil, err
}
h, err := host.New(cs, hdb, tp, w, ":0", filepath.Join(testdir, modules.HostDir))
if err != nil {
return nil, err
}
r, err := renter.New(cs, hdb, w, filepath.Join(testdir, modules.RenterDir))
if err != nil {
return nil, err
}
exp, err := explorer.New(cs, filepath.Join(testdir, modules.ExplorerDir))
if err != nil {
return nil, err
}
srv, err := NewServer(APIAddr, cs, g, h, hdb, m, r, tp, w, exp)
if err != nil {
return nil, err
}
// Assemble the serverTester.
st := &serverTester{
cs: cs,
gateway: g,
host: h,
hostdb: hdb,
miner: m,
renter: r,
tpool: tp,
exp: exp,
wallet: w,
walletKey: key,
server: srv,
}
// TODO: A more reasonable way of listening for server errors.
go func() {
listenErr := srv.Serve()
if listenErr != nil {
panic(listenErr)
}
}()
// Mine blocks until the wallet has confirmed money.
for i := types.BlockHeight(0); i <= types.MaturityDelay; i++ {
_, err := st.miner.AddBlock()
if err != nil {
return nil, err
}
}
return st, nil
}
// CreateHostTester initializes a HostTester.
func CreateHostTester(name string, t *testing.T) *hostTester {
testdir := build.TempDir(modules.HostDir, name)
// Create the modules.
g, err := gateway.New(":0", filepath.Join(testdir, modules.GatewayDir))
if err != nil {
t.Fatal(err)
}
cs, err := consensus.New(g, filepath.Join(testdir, modules.ConsensusDir))
if err != nil {
t.Fatal(err)
}
tp, err := transactionpool.New(cs, g)
if err != nil {
t.Fatal(err)
}
w, err := wallet.New(cs, tp, filepath.Join(testdir, modules.WalletDir))
if err != nil {
t.Fatal(err)
}
key, err := crypto.GenerateTwofishKey()
if err != nil {
t.Fatal(err)
}
_, err = w.Encrypt(key)
if err != nil {
t.Fatal(err)
}
err = w.Unlock(key)
if err != nil {
t.Fatal(err)
}
m, err := miner.New(cs, tp, w, filepath.Join(testdir, modules.MinerDir))
if err != nil {
t.Fatal(err)
}
h, err := New(cs, tp, w, ":0", filepath.Join(testdir, modules.HostDir))
if err != nil {
t.Fatal(err)
}
// Assemble all objects into a hostTester
ht := &hostTester{
cs: cs,
gateway: g,
miner: m,
tpool: tp,
wallet: w,
host: h,
t: t,
}
// Mine blocks until there is money in the wallet.
for i := types.BlockHeight(0); i <= types.MaturityDelay; i++ {
b, _ := m.FindBlock()
err := cs.AcceptBlock(b)
if err != nil {
t.Fatal(err)
}
}
return ht
}
// negotiateContract creates a file contract for a host according to the
// requests of the host. There is an assumption that only hosts with acceptable
// terms will be put into the hostdb.
func (r *Renter) negotiateContract(host modules.HostSettings, up modules.FileUploadParams, piece *filePiece) error {
lockID := r.mu.RLock()
height := r.blockHeight
r.mu.RUnlock(lockID)
key, err := crypto.GenerateTwofishKey()
if err != nil {
return err
}
file, err := os.Open(up.Filename)
if err != nil {
return err
}
defer file.Close()
info, err := file.Stat()
if err != nil {
return err
}
filesize := uint64(info.Size())
// Get the price and payout.
sizeCurrency := types.NewCurrency64(filesize)
durationCurrency := types.NewCurrency64(uint64(up.Duration))
clientCost := host.Price.Mul(sizeCurrency).Mul(durationCurrency)
hostCollateral := host.Collateral.Mul(sizeCurrency).Mul(durationCurrency)
payout := clientCost.Add(hostCollateral)
validOutputValue := payout.Sub(types.FileContract{Payout: payout}.Tax())
// Create the contract terms.
terms := modules.ContractTerms{
FileSize: filesize,
Duration: up.Duration,
DurationStart: height - 3,
WindowSize: defaultWindowSize,
Price: host.Price,
Collateral: host.Collateral,
ValidProofOutputs: []types.SiacoinOutput{
{Value: validOutputValue, UnlockHash: host.UnlockHash},
},
MissedProofOutputs: []types.SiacoinOutput{
{Value: validOutputValue, UnlockHash: types.UnlockHash{}},
},
}
// TODO: This is a hackish sleep, we need to be certain that all dependent
// transactions have propgated to the host's transaction pool. Instead,
// built into the protocol should be a step where any dependent
// transactions are automatically provided.
if build.Release == "standard" {
time.Sleep(time.Minute)
} else if build.Release == "testing" {
time.Sleep(time.Second * 15)
} else {
time.Sleep(time.Second)
}
// Perform the negotiations with the host through a network call.
conn, err := net.DialTimeout("tcp", string(host.IPAddress), 10e9)
if err != nil {
return err
}
defer conn.Close()
err = encoding.WriteObject(conn, [8]byte{'C', 'o', 'n', 't', 'r', 'a', 'c', 't'})
if err != nil {
return err
}
// Send the contract terms and read the response.
if err = encoding.WriteObject(conn, terms); err != nil {
return err
}
var response string
if err = encoding.ReadObject(conn, &response, 128); err != nil {
return err
}
if response != modules.AcceptTermsResponse {
return errors.New(response)
}
// Encrypt and transmit the file data while calculating its Merkle root.
tee := io.TeeReader(
// wrap file reader in encryption layer
key.NewReader(file),
// each byte we read from tee will also be written to conn;
// the uploadWriter updates the piece's 'Transferred' field
&uploadWriter{piece, conn},
)
merkleRoot, err := crypto.ReaderMerkleRoot(tee)
if err != nil {
return err
}
// Create the transaction holding the contract. This is done first so the
// transaction is created sooner, which will impact the user's wallet
// balance faster vs. waiting for the whole thing to upload before
// affecting the user's balance.
unsignedTxn, txnBuilder, err := r.createContractTransaction(terms, merkleRoot)
if err != nil {
return err
}
// Send the unsigned transaction to the host.
err = encoding.WriteObject(conn, unsignedTxn)
if err != nil {
return err
}
// The host will respond with a transaction with the collateral added.
// Add the collateral inputs from the host to the original wallet
// transaction.
var collateralTxn types.Transaction
err = encoding.ReadObject(conn, &collateralTxn, 16e3)
if err != nil {
return err
}
for i := len(unsignedTxn.SiacoinInputs); i < len(collateralTxn.SiacoinInputs); i++ {
txnBuilder.AddSiacoinInput(collateralTxn.SiacoinInputs[i])
}
signedTxn, err := txnBuilder.Sign(true)
if err != nil {
return err
}
// Send the signed transaction back to the host.
err = encoding.WriteObject(conn, signedTxn)
if err != nil {
return err
}
// Read an ack from the host that all is well.
var ack bool
err = encoding.ReadObject(conn, &ack, 1)
if err != nil {
return err
}
if !ack {
return errors.New("host negotiation failed")
}
// TODO: We don't actually watch the blockchain to make sure that the
// file contract made it.
// Negotiation was successful; update the filePiece.
txIndex := len(signedTxn) - 1
lockID = r.mu.Lock()
piece.Active = true
piece.Repairing = false
piece.Contract = signedTxn[txIndex].FileContracts[0]
piece.ContractID = signedTxn[txIndex].FileContractID(0)
piece.HostIP = host.IPAddress
piece.EncryptionKey = key
r.save()
r.mu.Unlock(lockID)
return nil
}
// newTestingTrio creates a Host, Contractor, and TestMiner that can be used
// for testing host/renter interactions.
func newTestingTrio(name string) (modules.Host, *Contractor, modules.TestMiner, error) {
testdir := build.TempDir("contractor", name)
// create miner
g, err := gateway.New("localhost:0", false, filepath.Join(testdir, modules.GatewayDir))
if err != nil {
return nil, nil, nil, err
}
cs, err := consensus.New(g, false, filepath.Join(testdir, modules.ConsensusDir))
if err != nil {
return nil, nil, nil, err
}
tp, err := transactionpool.New(cs, g, filepath.Join(testdir, modules.TransactionPoolDir))
if err != nil {
return nil, nil, nil, err
}
w, err := modWallet.New(cs, tp, filepath.Join(testdir, modules.WalletDir))
if err != nil {
return nil, nil, nil, err
}
key, err := crypto.GenerateTwofishKey()
if err != nil {
return nil, nil, nil, err
}
if !w.Encrypted() {
_, err = w.Encrypt(key)
if err != nil {
return nil, nil, nil, err
}
}
err = w.Unlock(key)
if err != nil {
return nil, nil, nil, err
}
m, err := miner.New(cs, tp, w, filepath.Join(testdir, modules.MinerDir))
if err != nil {
return nil, nil, nil, err
}
// create host and contractor, using same consensus set and gateway
h, err := newTestingHost(filepath.Join(testdir, "Host"), cs, tp)
if err != nil {
return nil, nil, nil, err
}
c, err := newTestingContractor(filepath.Join(testdir, "Contractor"), cs, tp)
if err != nil {
return nil, nil, nil, err
}
// announce the host
err = h.Announce()
if err != nil {
return nil, nil, nil, err
}
// mine a block, processing the announcement
m.AddBlock()
// wait for hostdb to scan host
for i := 0; i < 500 && len(c.hdb.RandomHosts(1, nil)) == 0; i++ {
time.Sleep(time.Millisecond)
}
return h, c, m, nil
}