// LookupByAccountID performs a federated lookup following to the stellar
// federation protocol using the "id" type request. The provided strkey-encoded
// account id is used to resolve what server the request should be made against.
func (c *Client) LookupByAccountID(aid string) (*IDResponse, error) {
domain, err := c.Horizon.HomeDomainForAccount(aid)
if err != nil {
return nil, errors.Wrap(err, "get homedomain failed")
}
if domain == "" {
return nil, errors.New("homedomain not set")
}
fserv, err := c.getFederationServer(domain)
if err != nil {
return nil, errors.Wrap(err, "lookup federation server failed")
}
url := c.url(fserv, "id", aid)
var resp IDResponse
err = c.getJSON(url, &resp)
if err != nil {
return nil, errors.Wrap(err, "get federation failed")
}
return &resp, nil
}
func (c *Client) getFederationServer(domain string) (string, error) {
stoml, err := c.StellarTOML.GetStellarToml(domain)
if err != nil {
return "", errors.Wrap(err, "get stellar.toml failed")
}
if stoml.FederationServer == "" {
return "", errors.New("stellar.toml is missing federation server info")
}
if !c.AllowHTTP && !strings.HasPrefix(stoml.FederationServer, "https://") {
return "", errors.New("non-https federation server disallowed")
}
return stoml.FederationServer, nil
}
// LookupByAddress performs a federated lookup following to the stellar
// federation protocol using the "name" type request. The provided address is
// used to resolve what server the request should be made against. NOTE: the
// "name" type is a legacy holdover from the legacy stellar network's federation
// protocol. It is unfortunate.
func (c *Client) LookupByAddress(addy string) (*NameResponse, error) {
_, domain, err := address.Split(addy)
if err != nil {
return nil, errors.Wrap(err, "parse address failed")
}
fserv, err := c.getFederationServer(domain)
if err != nil {
return nil, errors.Wrap(err, "lookup federation server failed")
}
url := c.url(fserv, "name", addy)
var resp NameResponse
err = c.getJSON(url, &resp)
if err != nil {
return nil, errors.Wrap(err, "get federation failed")
}
if resp.MemoType != "" && resp.Memo == "" {
return nil, errors.New("Invalid federation response (memo)")
}
return &resp, nil
}
// Rollback rolls back the current transaction
func (r *Repo) Rollback() error {
if r.tx == nil {
return errors.New("not in transaction")
}
err := r.tx.Rollback()
r.logRollback()
r.tx = nil
return err
}
// Commit commits the current transaction
func (r *Repo) Commit() error {
if r.tx == nil {
return errors.New("not in transaction")
}
err := r.tx.Commit()
r.logCommit()
r.tx = nil
return err
}
// Begin binds this repo to a new transaction.
func (r *Repo) Begin() error {
if r.tx != nil {
return errors.New("already in transaction")
}
tx, err := r.DB.Beginx()
if err != nil {
return errors.Wrap(err, "beginx failed")
}
r.logBegin()
r.tx = tx
return nil
}
func TestWithStack(t *testing.T) {
output := new(bytes.Buffer)
l := New()
l.Logger.Formatter.(*logrus.TextFormatter).DisableColors = true
l.Logger.Out = output
// Adds stack=unknown when the provided err has not stack info
l.WithStack(errors.New("broken")).Error("test")
assert.Contains(t, output.String(), "stack=unknown")
// Adds the stack properly if a go-errors.Error is provided
err := serr.New("broken")
l.WithStack(err).Error("test")
// simply ensure that the line creating the above error is in the log
assert.Contains(t, output.String(), "main_test.go:")
}
// GetStellarToml returns stellar.toml file for a given domain
func (c *Client) GetStellarToml(domain string) (resp *Response, err error) {
var hresp *http.Response
hresp, err = c.HTTP.Get(c.url(domain))
if err != nil {
err = errors.Wrap(err, "http request errored")
return
}
defer hresp.Body.Close()
if !(hresp.StatusCode >= 200 && hresp.StatusCode < 300) {
err = errors.New("http request failed with non-200 status code")
return
}
_, err = toml.DecodeReader(hresp.Body, &resp)
if err != nil {
err = errors.Wrap(err, "toml decode failed")
return
}
return
}
// Package app provides vars that can be populated via "-X" linker flags to
// provide global application metadata, such as build time or version.
package app
import "time"
import "github.com/stellar/go/support/errors"
var (
// ErrNoBuildTime is the error returned when no build time for the current
// binary was set.
ErrNoBuildTime = errors.New("build time not known")
)
// BuildTime returns the time that the binary of the current process was built.
// Our build script populates the `buildTime` var used to provide this result.
func BuildTime() (time.Time, error) {
if buildTime == "" {
return time.Time{}, ErrNoBuildTime
}
t, err := time.Parse(time.RFC3339, buildTime)
if err != nil {
return time.Time{}, errors.Wrap(err, "parse failed")
}
return t, nil
}
// Version returns the build version of the binary executing the current
// process. Our build script populates the `version` var, if a version tag is
// set. If not populated, a generic "devel" value will be returned.
package strkey
import (
"bytes"
"encoding/base32"
"encoding/binary"
"github.com/stellar/go/crc16"
"github.com/stellar/go/support/errors"
)
// ErrInvalidVersionByte is returned when the version byte from a provided
// strkey-encoded string is not one of the valid values.
var ErrInvalidVersionByte = errors.New("invalid version byte")
// VersionByte represents one of the possible prefix values for a StrKey base
// string--the string the when encoded using base32 yields a final StrKey.
type VersionByte byte
const (
//VersionByteAccountID is the version byte used for encoded stellar addresses
VersionByteAccountID VersionByte = 6 << 3 // Base32-encodes to 'G...'
//VersionByteSeed is the version byte used for encoded stellar seed
VersionByteSeed = 18 << 3 // Base32-encodes to 'S...'
)
// Decode decodes the provided StrKey into a raw value, checking the checksum
// and ensuring the expected VersionByte (the version parameter) is the value
// actually encoded into the provided src string.
func Decode(expected VersionByte, src string) ([]byte, error) {
if err := checkValidVersionByte(expected); err != nil {
// ReturnError causes this expectation to resolve to an error.
func (ce *ClientExpectation) ReturnError(msg string) *ClientExpectation {
return ce.Return(func(*http.Request) (*http.Response, error) {
return nil, errors.New(msg)
})
}
// DefaultTestNetClient is a default client to connect to test network
var DefaultTestNetClient = &Client{
URL: "https://horizon-testnet.stellar.org",
HTTP: http.DefaultClient,
}
// DefaultPublicNetClient is a default client to connect to public network
var DefaultPublicNetClient = &Client{
URL: "https://horizon.stellar.org",
HTTP: http.DefaultClient,
}
var (
// ErrTransactionNotFailed is the error returned from a call to ResultCodes()
// against a `Problem` value that is not of type "transaction_failed".
ErrTransactionNotFailed = errors.New("cannot get result codes from transaction that did not fail")
// ErrResultCodesNotPopulated is the error returned from a call to
// ResultCodes() against a `Problem` value that doesn't have the
// "result_codes" extra field populated when it is expected to be.
ErrResultCodesNotPopulated = errors.New("result_codes not populated")
// ErrEnvelopeNotPopulated is the error returned from a call to
// Envelope() against a `Problem` value that doesn't have the
// "envelope_xdr" extra field populated when it is expected to be.
ErrEnvelopeNotPopulated = errors.New("envelope_xdr not populated")
)
// Client struct contains data required to connect to Horizon instance
type Client struct {
// URL of Horizon server to connect
import (
"fmt"
"strings"
"github.com/asaskevich/govalidator"
"github.com/stellar/go/support/errors"
)
// Separator seperates the name and domain portions of an address
const Separator = "*"
var (
// ErrInvalidAddress is the error returned when an address is invalid in
// such a way that we do not know if the name or domain portion is at fault.
ErrInvalidAddress = errors.New("invalid address")
// ErrInvalidName is the error returned when an address's name portion is
// invalid.
ErrInvalidName = errors.New("name part of address is invalid")
// ErrInvalidDomain is the error returned when an address's domain portion
// is invalid.
ErrInvalidDomain = errors.New("domain part of address is invalid")
)
// New returns a new address based upon the provided name and domain. Note: Not
// validation is performed on the parts provided... it is possible to create an
// invalid address by supplying invalid information, for example, supplying a
// blank domain.
func New(name, domain string) string {
func (pl *PaymentListener) onPayment(payment horizon.PaymentResponse) (err error) {
pl.log.WithFields(logrus.Fields{"id": payment.ID}).Info("New received payment")
id, err := strconv.ParseInt(payment.ID, 10, 64)
if err != nil {
pl.log.WithFields(logrus.Fields{"err": err}).Error("Error converting ID to int64")
return err
}
existingPayment, err := pl.repository.GetReceivedPaymentByID(id)
if err != nil {
pl.log.WithFields(logrus.Fields{"err": err}).Error("Error checking if receive payment exists")
return err
}
if existingPayment != nil {
pl.log.WithFields(logrus.Fields{"id": payment.ID}).Info("Payment already exists")
return
}
dbPayment := entities.ReceivedPayment{
OperationID: payment.ID,
ProcessedAt: pl.now(),
PagingToken: payment.PagingToken,
}
savePayment := func(payment *entities.ReceivedPayment) (err error) {
err = pl.entityManager.Persist(payment)
return
}
if payment.Type != "payment" && payment.Type != "path_payment" {
dbPayment.Status = "Not a payment operation"
savePayment(&dbPayment)
return
}
if payment.To != pl.config.Accounts.ReceivingAccountID {
dbPayment.Status = "Operation sent not received"
savePayment(&dbPayment)
return nil
}
if !pl.isAssetAllowed(payment.AssetCode, payment.AssetIssuer) {
dbPayment.Status = "Asset not allowed"
savePayment(&dbPayment)
return nil
}
err = pl.horizon.LoadMemo(&payment)
if err != nil {
pl.log.Error("Unable to load transaction memo")
return err
}
var receiveResponse compliance.ReceiveResponse
var route string
// Request extra_memo from compliance server
if pl.config.Compliance != "" && payment.Memo.Type == "hash" {
resp, err := pl.postForm(
pl.config.Compliance+"/receive",
url.Values{"memo": {string(payment.Memo.Value)}},
)
if err != nil {
pl.log.WithFields(logrus.Fields{"err": err}).Error("Error sending request to compliance server")
return err
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
pl.log.Error("Error reading compliance server response")
return err
}
if resp.StatusCode != 200 {
pl.log.WithFields(logrus.Fields{
"status": resp.StatusCode,
"body": string(body),
}).Error("Error response from compliance server")
return err
}
err = json.Unmarshal([]byte(body), &receiveResponse)
if err != nil {
pl.log.WithFields(logrus.Fields{"err": err}).Error("Cannot unmarshal receiveResponse")
return err
}
var authData compliance.AuthData
err = json.Unmarshal([]byte(receiveResponse.Data), &authData)
if err != nil {
pl.log.WithFields(logrus.Fields{"err": err}).Error("Cannot unmarshal authData")
return err
}
var memo memo.Memo
err = json.Unmarshal([]byte(authData.Memo), &memo)
if err != nil {
pl.log.WithFields(logrus.Fields{"err": err}).Error("Cannot unmarshal memo")
return err
}
route = memo.Transaction.Route
} else if payment.Memo.Type != "hash" {
route = payment.Memo.Value
}
resp, err := pl.postForm(
pl.config.Callbacks.Receive,
url.Values{
"id": {payment.ID},
"from": {payment.From},
"route": {route},
"amount": {payment.Amount},
"asset_code": {payment.AssetCode},
"memo_type": {payment.Memo.Type},
"memo": {payment.Memo.Value},
"data": {receiveResponse.Data},
},
)
if err != nil {
pl.log.Error("Error sending request to receive callback")
return err
}
if resp.StatusCode != 200 {
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
pl.log.Error("Error reading receive callback response")
return err
}
pl.log.WithFields(logrus.Fields{
"status": resp.StatusCode,
"body": string(body),
}).Error("Error response from receive callback")
return errors.New("Error response from receive callback")
}
dbPayment.Status = "Success"
err = savePayment(&dbPayment)
if err != nil {
pl.log.Error("Error saving payment to the DB")
return err
}
return nil
}