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orm.go
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orm.go
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package bridges
import (
"context"
"database/sql"
"fmt"
"sync"
"time"
"github.com/jmoiron/sqlx"
pkgerrors "github.com/pkg/errors"
"github.com/smartcontractkit/chainlink-common/pkg/sqlutil"
"github.com/smartcontractkit/chainlink/v2/core/auth"
)
//go:generate mockery --quiet --name ORM --output ./mocks --case=underscore
type ORM interface {
FindBridge(ctx context.Context, name BridgeName) (bt BridgeType, err error)
FindBridges(ctx context.Context, name []BridgeName) (bts []BridgeType, err error)
DeleteBridgeType(ctx context.Context, bt *BridgeType) error
BridgeTypes(ctx context.Context, offset int, limit int) ([]BridgeType, int, error)
CreateBridgeType(ctx context.Context, bt *BridgeType) error
UpdateBridgeType(ctx context.Context, bt *BridgeType, btr *BridgeTypeRequest) error
GetCachedResponse(ctx context.Context, dotId string, specId int32, maxElapsed time.Duration) ([]byte, error)
UpsertBridgeResponse(ctx context.Context, dotId string, specId int32, response []byte) error
ExternalInitiators(ctx context.Context, offset int, limit int) ([]ExternalInitiator, int, error)
CreateExternalInitiator(ctx context.Context, externalInitiator *ExternalInitiator) error
DeleteExternalInitiator(ctx context.Context, name string) error
FindExternalInitiator(ctx context.Context, eia *auth.Token) (*ExternalInitiator, error)
FindExternalInitiatorByName(ctx context.Context, iname string) (exi ExternalInitiator, err error)
WithDataSource(sqlutil.DataSource) ORM
}
type orm struct {
ds sqlutil.DataSource
bridgeTypesCache sync.Map
}
var _ ORM = (*orm)(nil)
func NewORM(ds sqlutil.DataSource) ORM {
return &orm{ds: ds}
}
func (o *orm) WithDataSource(ds sqlutil.DataSource) ORM { return NewORM(ds) }
func (o *orm) transact(ctx context.Context, readOnly bool, fn func(tx *orm) error) error {
opts := sqlutil.TxOptions{TxOptions: sql.TxOptions{ReadOnly: readOnly}}
return sqlutil.Transact(ctx, func(ds sqlutil.DataSource) *orm { return &orm{ds: ds} }, o.ds, &opts, fn)
}
// FindBridge looks up a Bridge by its Name.
// Returns sql.ErrNoRows if name not present
func (o *orm) FindBridge(ctx context.Context, name BridgeName) (bt BridgeType, err error) {
if bridgeType, ok := o.bridgeTypesCache.Load(name); ok {
return bridgeType.(BridgeType), nil
}
stmt := "SELECT * FROM bridge_types WHERE name = $1"
err = o.ds.GetContext(ctx, &bt, stmt, name.String())
if err == nil {
o.bridgeTypesCache.Store(bt.Name, bt)
}
return
}
// FindBridges looks up multiple bridges in a single query.
// Errors unless all bridges successfully found. Requires at least one bridge.
// Expects all bridges to be unique
func (o *orm) FindBridges(ctx context.Context, names []BridgeName) (bts []BridgeType, err error) {
if len(names) == 0 {
return nil, pkgerrors.Errorf("at least one bridge name is required")
}
var allFoundBts []BridgeType
var searchNames []BridgeName
for _, n := range names {
if bridgeType, ok := o.bridgeTypesCache.Load(n); ok {
allFoundBts = append(allFoundBts, bridgeType.(BridgeType))
} else {
searchNames = append(searchNames, n)
}
}
if len(allFoundBts) == len(names) {
return allFoundBts, nil
}
stmt := "SELECT * FROM bridge_types WHERE name IN (?)"
query, args, err := sqlx.In(stmt, searchNames)
if err != nil {
return nil, err
}
err = o.ds.SelectContext(ctx, &bts, o.ds.Rebind(query), args...)
if err != nil {
return nil, err
}
for _, bt := range bts {
o.bridgeTypesCache.Store(bt.Name, bt)
}
allFoundBts = append(allFoundBts, bts...)
if len(allFoundBts) != len(names) {
return nil, pkgerrors.Errorf("not all bridges exist, asked for %v, exists %v", names, allFoundBts)
}
return allFoundBts, nil
}
// DeleteBridgeType removes the bridge type
func (o *orm) DeleteBridgeType(ctx context.Context, bt *BridgeType) error {
query := "DELETE FROM bridge_types WHERE name = $1"
result, err := o.ds.ExecContext(ctx, query, bt.Name)
if err != nil {
return err
}
rowsAffected, err := result.RowsAffected()
if err != nil {
return err
}
// We delete regardless of the rows affected, in case it gets out of sync
o.bridgeTypesCache.Delete(bt.Name)
if rowsAffected == 0 {
return sql.ErrNoRows
}
return err
}
// BridgeTypes returns bridge types ordered by name filtered limited by the
// passed params.
func (o *orm) BridgeTypes(ctx context.Context, offset int, limit int) (bridges []BridgeType, count int, err error) {
err = o.transact(ctx, true, func(tx *orm) error {
if err = tx.ds.GetContext(ctx, &count, "SELECT COUNT(*) FROM bridge_types"); err != nil {
return pkgerrors.Wrap(err, "BridgeTypes failed to get count")
}
sql := `SELECT * FROM bridge_types ORDER BY name asc LIMIT $1 OFFSET $2;`
if err = tx.ds.SelectContext(ctx, &bridges, sql, limit, offset); err != nil {
return pkgerrors.Wrap(err, "BridgeTypes failed to load bridge_types")
}
return nil
})
return
}
// CreateBridgeType saves the bridge type.
func (o *orm) CreateBridgeType(ctx context.Context, bt *BridgeType) error {
stmt := `INSERT INTO bridge_types (name, url, confirmations, incoming_token_hash, salt, outgoing_token, minimum_contract_payment, created_at, updated_at)
VALUES (:name, :url, :confirmations, :incoming_token_hash, :salt, :outgoing_token, :minimum_contract_payment, now(), now())
RETURNING *;`
err := o.transact(ctx, false, func(tx *orm) error {
stmt, err := tx.ds.PrepareNamedContext(ctx, stmt)
if err != nil {
return err
}
defer stmt.Close()
return stmt.GetContext(ctx, bt, bt)
})
if err == nil {
o.bridgeTypesCache.Store(bt.Name, *bt)
}
return pkgerrors.Wrap(err, "CreateBridgeType failed")
}
// UpdateBridgeType updates the bridge type.
func (o *orm) UpdateBridgeType(ctx context.Context, bt *BridgeType, btr *BridgeTypeRequest) error {
stmt := "UPDATE bridge_types SET url = $1, confirmations = $2, minimum_contract_payment = $3 WHERE name = $4 RETURNING *"
err := o.ds.GetContext(ctx, bt, stmt, btr.URL, btr.Confirmations, btr.MinimumContractPayment, bt.Name)
if err == nil {
o.bridgeTypesCache.Store(bt.Name, *bt)
}
return err
}
func (o *orm) GetCachedResponse(ctx context.Context, dotId string, specId int32, maxElapsed time.Duration) (response []byte, err error) {
stalenessThreshold := time.Now().Add(-maxElapsed)
sql := `SELECT value FROM bridge_last_value WHERE
dot_id = $1 AND
spec_id = $2 AND
finished_at > ($3)
ORDER BY finished_at
DESC LIMIT 1;`
err = pkgerrors.Wrap(o.ds.GetContext(ctx, &response, sql, dotId, specId, stalenessThreshold), fmt.Sprintf("failed to fetch last good value for task %s spec %d", dotId, specId))
return
}
func (o *orm) UpsertBridgeResponse(ctx context.Context, dotId string, specId int32, response []byte) error {
sql := `INSERT INTO bridge_last_value(dot_id, spec_id, value, finished_at)
VALUES($1, $2, $3, $4)
ON CONFLICT ON CONSTRAINT bridge_last_value_pkey
DO UPDATE SET value = $3, finished_at = $4;`
_, err := o.ds.ExecContext(ctx, sql, dotId, specId, response, time.Now())
return pkgerrors.Wrap(err, "failed to upsert bridge response")
}
// --- External Initiator
// ExternalInitiators returns a list of external initiators sorted by name
func (o *orm) ExternalInitiators(ctx context.Context, offset int, limit int) (exis []ExternalInitiator, count int, err error) {
err = o.transact(ctx, true, func(tx *orm) error {
if err = tx.ds.GetContext(ctx, &count, "SELECT COUNT(*) FROM external_initiators"); err != nil {
return pkgerrors.Wrap(err, "ExternalInitiators failed to get count")
}
sql := `SELECT * FROM external_initiators ORDER BY name asc LIMIT $1 OFFSET $2;`
if err = tx.ds.SelectContext(ctx, &exis, sql, limit, offset); err != nil {
return pkgerrors.Wrap(err, "ExternalInitiators failed to load external_initiators")
}
return nil
})
return
}
// CreateExternalInitiator inserts a new external initiator
func (o *orm) CreateExternalInitiator(ctx context.Context, externalInitiator *ExternalInitiator) (err error) {
query := `INSERT INTO external_initiators (name, url, access_key, salt, hashed_secret, outgoing_secret, outgoing_token, created_at, updated_at)
VALUES (:name, :url, :access_key, :salt, :hashed_secret, :outgoing_secret, :outgoing_token, now(), now())
RETURNING *
`
err = o.transact(ctx, false, func(tx *orm) error {
var stmt *sqlx.NamedStmt
stmt, err = tx.ds.PrepareNamedContext(ctx, query)
if err != nil {
return pkgerrors.Wrap(err, "failed to prepare named stmt")
}
defer stmt.Close()
return pkgerrors.Wrap(stmt.GetContext(ctx, externalInitiator, externalInitiator), "failed to load external_initiator")
})
return pkgerrors.Wrap(err, "CreateExternalInitiator failed")
}
// DeleteExternalInitiator removes an external initiator
func (o *orm) DeleteExternalInitiator(ctx context.Context, name string) error {
query := "DELETE FROM external_initiators WHERE name = $1"
result, err := o.ds.ExecContext(ctx, query, name)
if err != nil {
return err
}
rowsAffected, err := result.RowsAffected()
if err != nil {
return err
}
if rowsAffected == 0 {
return sql.ErrNoRows
}
return err
}
// FindExternalInitiator finds an external initiator given an authentication request
func (o *orm) FindExternalInitiator(ctx context.Context, eia *auth.Token) (*ExternalInitiator, error) {
exi := &ExternalInitiator{}
err := o.ds.GetContext(ctx, exi, `SELECT * FROM external_initiators WHERE access_key = $1`, eia.AccessKey)
return exi, err
}
// FindExternalInitiatorByName finds an external initiator given an authentication request
func (o *orm) FindExternalInitiatorByName(ctx context.Context, iname string) (exi ExternalInitiator, err error) {
err = o.ds.GetContext(ctx, &exi, `SELECT * FROM external_initiators WHERE lower(name) = lower($1)`, iname)
return
}