mirror of https://github.com/status-im/go-waku.git
133 lines
3.0 KiB
Go
133 lines
3.0 KiB
Go
//go:build !gowaku_no_rln
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// +build !gowaku_no_rln
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package node
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import (
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"bytes"
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"context"
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"errors"
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"github.com/waku-org/go-waku/waku/v2/protocol/rln"
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"github.com/waku-org/go-waku/waku/v2/protocol/rln/group_manager"
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"github.com/waku-org/go-waku/waku/v2/protocol/rln/group_manager/dynamic"
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"github.com/waku-org/go-waku/waku/v2/protocol/rln/group_manager/static"
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"github.com/waku-org/go-waku/waku/v2/protocol/rln/keystore"
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r "github.com/waku-org/go-zerokit-rln/rln"
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)
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// RLNRelay is used to access any operation related to Waku RLN protocol
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func (w *WakuNode) RLNRelay() RLNRelay {
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return w.rlnRelay
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}
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func (w *WakuNode) setupRLNRelay() error {
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var err error
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if !w.opts.enableRLN {
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return nil
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}
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if !w.opts.enableRelay {
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return errors.New("rln requires relay")
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}
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var groupManager group_manager.GroupManager
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rlnInstance, rootTracker, err := rln.GetRLNInstanceAndRootTracker(w.opts.rlnTreePath)
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if err != nil {
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return err
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}
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if !w.opts.rlnRelayDynamic {
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w.log.Info("setting up waku-rln-relay in off-chain mode")
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index := uint(0)
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if w.opts.rlnRelayMemIndex != nil {
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index = *w.opts.rlnRelayMemIndex
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}
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// set up rln relay inputs
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groupKeys, idCredential, err := static.Setup(index)
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if err != nil {
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return err
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}
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groupManager, err = static.NewStaticGroupManager(groupKeys, idCredential, index, rlnInstance, rootTracker, w.log)
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if err != nil {
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return err
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}
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} else {
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w.log.Info("setting up waku-rln-relay in on-chain mode")
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appKeystore, err := keystore.New(w.opts.keystorePath, dynamic.RLNAppInfo, w.log)
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if err != nil {
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return err
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}
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groupManager, err = dynamic.NewDynamicGroupManager(
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w.opts.rlnETHClientAddress,
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w.opts.rlnMembershipContractAddress,
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w.opts.rlnRelayMemIndex,
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appKeystore,
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w.opts.keystorePassword,
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w.opts.prometheusReg,
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rlnInstance,
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rootTracker,
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w.log,
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)
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if err != nil {
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return err
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}
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}
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rlnRelay := rln.New(group_manager.Details{
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GroupManager: groupManager,
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RootTracker: rootTracker,
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RLN: rlnInstance,
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}, w.timesource, w.opts.prometheusReg, w.log)
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w.rlnRelay = rlnRelay
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w.Relay().RegisterDefaultValidator(w.rlnRelay.Validator(w.opts.rlnSpamHandler))
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return nil
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}
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func (w *WakuNode) startRlnRelay(ctx context.Context) error {
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rlnRelay := w.rlnRelay.(*rln.WakuRLNRelay)
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err := rlnRelay.Start(ctx)
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if err != nil {
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return err
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}
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if !w.opts.rlnRelayDynamic {
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// check the correct construction of the tree by comparing the calculated root against the expected root
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// no error should happen as it is already captured in the unit tests
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root, err := rlnRelay.RLN.GetMerkleRoot()
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if err != nil {
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return err
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}
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expectedRoot, err := r.ToBytes32LE(r.STATIC_GROUP_MERKLE_ROOT)
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if err != nil {
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return err
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}
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if !bytes.Equal(expectedRoot[:], root[:]) {
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return errors.New("root mismatch: something went wrong not in Merkle tree construction")
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}
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}
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w.log.Info("mounted waku RLN relay")
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return nil
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}
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func (w *WakuNode) stopRlnRelay() error {
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if w.rlnRelay != nil {
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return w.rlnRelay.Stop()
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}
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return nil
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}
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