You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
730 lines
21 KiB
730 lines
21 KiB
package rpc
|
|
|
|
import (
|
|
"bytes"
|
|
"context"
|
|
"errors"
|
|
"fmt"
|
|
"regexp"
|
|
"time"
|
|
|
|
"github.com/gogo/protobuf/proto"
|
|
|
|
abci "github.com/tendermint/tendermint/abci/types"
|
|
"github.com/tendermint/tendermint/crypto/merkle"
|
|
tmbytes "github.com/tendermint/tendermint/libs/bytes"
|
|
"github.com/tendermint/tendermint/libs/log"
|
|
tmmath "github.com/tendermint/tendermint/libs/math"
|
|
service "github.com/tendermint/tendermint/libs/service"
|
|
rpcclient "github.com/tendermint/tendermint/rpc/client"
|
|
"github.com/tendermint/tendermint/rpc/coretypes"
|
|
rpctypes "github.com/tendermint/tendermint/rpc/jsonrpc/types"
|
|
"github.com/tendermint/tendermint/types"
|
|
)
|
|
|
|
// KeyPathFunc builds a merkle path out of the given path and key.
|
|
type KeyPathFunc func(path string, key []byte) (merkle.KeyPath, error)
|
|
|
|
// LightClient is an interface that contains functionality needed by Client from the light client.
|
|
//go:generate ../../scripts/mockery_generate.sh LightClient
|
|
type LightClient interface {
|
|
ChainID() string
|
|
Update(ctx context.Context, now time.Time) (*types.LightBlock, error)
|
|
VerifyLightBlockAtHeight(ctx context.Context, height int64, now time.Time) (*types.LightBlock, error)
|
|
TrustedLightBlock(height int64) (*types.LightBlock, error)
|
|
Status(ctx context.Context) *types.LightClientInfo
|
|
}
|
|
|
|
var _ rpcclient.Client = (*Client)(nil)
|
|
|
|
// Client is an RPC client, which uses light#Client to verify data (if it can
|
|
// be proved). Note, merkle.DefaultProofRuntime is used to verify values
|
|
// returned by ABCI#Query.
|
|
type Client struct {
|
|
service.BaseService
|
|
|
|
next rpcclient.Client
|
|
lc LightClient
|
|
|
|
// proof runtime used to verify values returned by ABCIQuery
|
|
prt *merkle.ProofRuntime
|
|
keyPathFn KeyPathFunc
|
|
|
|
closers []func()
|
|
quitCh chan struct{}
|
|
}
|
|
|
|
var _ rpcclient.Client = (*Client)(nil)
|
|
|
|
// Option allow you to tweak Client.
|
|
type Option func(*Client)
|
|
|
|
// KeyPathFn option can be used to set a function, which parses a given path
|
|
// and builds the merkle path for the prover. It must be provided if you want
|
|
// to call ABCIQuery or ABCIQueryWithOptions.
|
|
func KeyPathFn(fn KeyPathFunc) Option {
|
|
return func(c *Client) {
|
|
c.keyPathFn = fn
|
|
}
|
|
}
|
|
|
|
// DefaultMerkleKeyPathFn creates a function used to generate merkle key paths
|
|
// from a path string and a key. This is the default used by the cosmos SDK.
|
|
// This merkle key paths are required when verifying /abci_query calls
|
|
func DefaultMerkleKeyPathFn() KeyPathFunc {
|
|
// regexp for extracting store name from /abci_query path
|
|
storeNameRegexp := regexp.MustCompile(`\/store\/(.+)\/key`)
|
|
|
|
return func(path string, key []byte) (merkle.KeyPath, error) {
|
|
matches := storeNameRegexp.FindStringSubmatch(path)
|
|
if len(matches) != 2 {
|
|
return nil, fmt.Errorf("can't find store name in %s using %s", path, storeNameRegexp)
|
|
}
|
|
storeName := matches[1]
|
|
|
|
kp := merkle.KeyPath{}
|
|
kp = kp.AppendKey([]byte(storeName), merkle.KeyEncodingURL)
|
|
kp = kp.AppendKey(key, merkle.KeyEncodingURL)
|
|
return kp, nil
|
|
}
|
|
}
|
|
|
|
// NewClient returns a new client.
|
|
func NewClient(logger log.Logger, next rpcclient.Client, lc LightClient, opts ...Option) *Client {
|
|
c := &Client{
|
|
next: next,
|
|
lc: lc,
|
|
prt: merkle.DefaultProofRuntime(),
|
|
quitCh: make(chan struct{}),
|
|
}
|
|
c.BaseService = *service.NewBaseService(logger, "Client", c)
|
|
for _, o := range opts {
|
|
o(c)
|
|
}
|
|
return c
|
|
}
|
|
|
|
func (c *Client) OnStart(ctx context.Context) error {
|
|
nctx, ncancel := context.WithCancel(ctx)
|
|
if err := c.next.Start(nctx); err != nil {
|
|
ncancel()
|
|
return err
|
|
}
|
|
c.closers = append(c.closers, ncancel)
|
|
go func() {
|
|
defer close(c.quitCh)
|
|
c.Wait()
|
|
}()
|
|
|
|
return nil
|
|
}
|
|
|
|
func (c *Client) OnStop() {
|
|
for _, closer := range c.closers {
|
|
closer()
|
|
}
|
|
}
|
|
|
|
// Returns the status of the light client. Previously this was querying the primary connected to the client
|
|
// As a consequence of this change, running /status on the light client will return nil for SyncInfo, NodeInfo
|
|
// and ValdiatorInfo.
|
|
func (c *Client) Status(ctx context.Context) (*coretypes.ResultStatus, error) {
|
|
lightClientInfo := c.lc.Status(ctx)
|
|
|
|
return &coretypes.ResultStatus{
|
|
NodeInfo: types.NodeInfo{},
|
|
SyncInfo: coretypes.SyncInfo{},
|
|
ValidatorInfo: coretypes.ValidatorInfo{},
|
|
LightClientInfo: *lightClientInfo,
|
|
}, nil
|
|
}
|
|
|
|
func (c *Client) ABCIInfo(ctx context.Context) (*coretypes.ResultABCIInfo, error) {
|
|
return c.next.ABCIInfo(ctx)
|
|
}
|
|
|
|
// ABCIQuery requests proof by default.
|
|
func (c *Client) ABCIQuery(ctx context.Context, path string, data tmbytes.HexBytes) (*coretypes.ResultABCIQuery, error) {
|
|
return c.ABCIQueryWithOptions(ctx, path, data, rpcclient.DefaultABCIQueryOptions)
|
|
}
|
|
|
|
// ABCIQueryWithOptions returns an error if opts.Prove is false.
|
|
// ABCIQueryWithOptions returns the result for the given height (opts.Height).
|
|
// If no height is provided, the results of the block preceding the latest are returned.
|
|
func (c *Client) ABCIQueryWithOptions(ctx context.Context, path string, data tmbytes.HexBytes,
|
|
opts rpcclient.ABCIQueryOptions) (*coretypes.ResultABCIQuery, error) {
|
|
|
|
// always request the proof
|
|
opts.Prove = true
|
|
|
|
// Can't return the latest block results because we won't be able to
|
|
// prove them. Return the results for the previous block instead.
|
|
if opts.Height == 0 {
|
|
res, err := c.next.Status(ctx)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("can't get latest height: %w", err)
|
|
}
|
|
opts.Height = res.SyncInfo.LatestBlockHeight - 1
|
|
}
|
|
|
|
res, err := c.next.ABCIQueryWithOptions(ctx, path, data, opts)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
resp := res.Response
|
|
|
|
// Validate the response.
|
|
if resp.IsErr() {
|
|
return nil, fmt.Errorf("err response code: %v", resp.Code)
|
|
}
|
|
if len(resp.Key) == 0 {
|
|
return nil, errors.New("empty key")
|
|
}
|
|
if resp.ProofOps == nil || len(resp.ProofOps.Ops) == 0 {
|
|
return nil, errors.New("no proof ops")
|
|
}
|
|
if resp.Height <= 0 {
|
|
return nil, coretypes.ErrZeroOrNegativeHeight
|
|
}
|
|
|
|
// Update the light client if we're behind.
|
|
// NOTE: AppHash for height H is in header H+1.
|
|
nextHeight := resp.Height + 1
|
|
l, err := c.updateLightClientIfNeededTo(ctx, &nextHeight)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Validate the value proof against the trusted header.
|
|
|
|
// build a Merkle key path from path and resp.Key
|
|
if c.keyPathFn == nil {
|
|
return nil, errors.New("please configure Client with KeyPathFn option")
|
|
}
|
|
|
|
kp, err := c.keyPathFn(path, resp.Key)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("can't build merkle key path: %w", err)
|
|
}
|
|
|
|
// verify value
|
|
if resp.Value != nil {
|
|
err = c.prt.VerifyValue(resp.ProofOps, l.AppHash, kp.String(), resp.Value)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("verify value proof: %w", err)
|
|
}
|
|
} else { // OR validate the absence proof against the trusted header.
|
|
err = c.prt.VerifyAbsence(resp.ProofOps, l.AppHash, kp.String())
|
|
if err != nil {
|
|
return nil, fmt.Errorf("verify absence proof: %w", err)
|
|
}
|
|
}
|
|
|
|
return &coretypes.ResultABCIQuery{Response: resp}, nil
|
|
}
|
|
|
|
func (c *Client) BroadcastTxCommit(ctx context.Context, tx types.Tx) (*coretypes.ResultBroadcastTxCommit, error) {
|
|
return c.next.BroadcastTxCommit(ctx, tx)
|
|
}
|
|
|
|
func (c *Client) BroadcastTxAsync(ctx context.Context, tx types.Tx) (*coretypes.ResultBroadcastTx, error) {
|
|
return c.next.BroadcastTxAsync(ctx, tx)
|
|
}
|
|
|
|
func (c *Client) BroadcastTxSync(ctx context.Context, tx types.Tx) (*coretypes.ResultBroadcastTx, error) {
|
|
return c.next.BroadcastTxSync(ctx, tx)
|
|
}
|
|
|
|
func (c *Client) UnconfirmedTxs(ctx context.Context, page, perPage *int) (*coretypes.ResultUnconfirmedTxs, error) {
|
|
return c.next.UnconfirmedTxs(ctx, page, perPage)
|
|
}
|
|
|
|
func (c *Client) NumUnconfirmedTxs(ctx context.Context) (*coretypes.ResultUnconfirmedTxs, error) {
|
|
return c.next.NumUnconfirmedTxs(ctx)
|
|
}
|
|
|
|
func (c *Client) CheckTx(ctx context.Context, tx types.Tx) (*coretypes.ResultCheckTx, error) {
|
|
return c.next.CheckTx(ctx, tx)
|
|
}
|
|
|
|
func (c *Client) RemoveTx(ctx context.Context, txKey types.TxKey) error {
|
|
return c.next.RemoveTx(ctx, txKey)
|
|
}
|
|
|
|
func (c *Client) NetInfo(ctx context.Context) (*coretypes.ResultNetInfo, error) {
|
|
return c.next.NetInfo(ctx)
|
|
}
|
|
|
|
func (c *Client) DumpConsensusState(ctx context.Context) (*coretypes.ResultDumpConsensusState, error) {
|
|
return c.next.DumpConsensusState(ctx)
|
|
}
|
|
|
|
func (c *Client) ConsensusState(ctx context.Context) (*coretypes.ResultConsensusState, error) {
|
|
return c.next.ConsensusState(ctx)
|
|
}
|
|
|
|
func (c *Client) ConsensusParams(ctx context.Context, height *int64) (*coretypes.ResultConsensusParams, error) {
|
|
res, err := c.next.ConsensusParams(ctx, height)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Validate res.
|
|
if err := res.ConsensusParams.ValidateConsensusParams(); err != nil {
|
|
return nil, err
|
|
}
|
|
if res.BlockHeight <= 0 {
|
|
return nil, coretypes.ErrZeroOrNegativeHeight
|
|
}
|
|
|
|
// Update the light client if we're behind.
|
|
l, err := c.updateLightClientIfNeededTo(ctx, &res.BlockHeight)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Verify hash.
|
|
if cH, tH := res.ConsensusParams.HashConsensusParams(), l.ConsensusHash; !bytes.Equal(cH, tH) {
|
|
return nil, fmt.Errorf("params hash %X does not match trusted hash %X",
|
|
cH, tH)
|
|
}
|
|
|
|
return res, nil
|
|
}
|
|
|
|
func (c *Client) Events(ctx context.Context, req *coretypes.RequestEvents) (*coretypes.ResultEvents, error) {
|
|
return c.next.Events(ctx, req)
|
|
}
|
|
|
|
func (c *Client) Health(ctx context.Context) (*coretypes.ResultHealth, error) {
|
|
return c.next.Health(ctx)
|
|
}
|
|
|
|
// BlockchainInfo calls rpcclient#BlockchainInfo and then verifies every header
|
|
// returned.
|
|
func (c *Client) BlockchainInfo(ctx context.Context, minHeight, maxHeight int64) (*coretypes.ResultBlockchainInfo, error) {
|
|
res, err := c.next.BlockchainInfo(ctx, minHeight, maxHeight)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Validate res.
|
|
for i, meta := range res.BlockMetas {
|
|
if meta == nil {
|
|
return nil, fmt.Errorf("nil block meta %d", i)
|
|
}
|
|
if err := meta.ValidateBasic(); err != nil {
|
|
return nil, fmt.Errorf("invalid block meta %d: %w", i, err)
|
|
}
|
|
}
|
|
|
|
// Update the light client if we're behind.
|
|
if len(res.BlockMetas) > 0 {
|
|
lastHeight := res.BlockMetas[len(res.BlockMetas)-1].Header.Height
|
|
if _, err := c.updateLightClientIfNeededTo(ctx, &lastHeight); err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
|
|
// Verify each of the BlockMetas.
|
|
for _, meta := range res.BlockMetas {
|
|
h, err := c.lc.TrustedLightBlock(meta.Header.Height)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("trusted header %d: %w", meta.Header.Height, err)
|
|
}
|
|
if bmH, tH := meta.Header.Hash(), h.Hash(); !bytes.Equal(bmH, tH) {
|
|
return nil, fmt.Errorf("block meta header %X does not match with trusted header %X",
|
|
bmH, tH)
|
|
}
|
|
}
|
|
|
|
return res, nil
|
|
}
|
|
|
|
func (c *Client) Genesis(ctx context.Context) (*coretypes.ResultGenesis, error) {
|
|
return c.next.Genesis(ctx)
|
|
}
|
|
|
|
func (c *Client) GenesisChunked(ctx context.Context, id uint) (*coretypes.ResultGenesisChunk, error) {
|
|
return c.next.GenesisChunked(ctx, id)
|
|
}
|
|
|
|
// Block calls rpcclient#Block and then verifies the result.
|
|
func (c *Client) Block(ctx context.Context, height *int64) (*coretypes.ResultBlock, error) {
|
|
res, err := c.next.Block(ctx, height)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Validate res.
|
|
if err := res.BlockID.ValidateBasic(); err != nil {
|
|
return nil, err
|
|
}
|
|
if err := res.Block.ValidateBasic(); err != nil {
|
|
return nil, err
|
|
}
|
|
if bmH, bH := res.BlockID.Hash, res.Block.Hash(); !bytes.Equal(bmH, bH) {
|
|
return nil, fmt.Errorf("blockID %X does not match with block %X",
|
|
bmH, bH)
|
|
}
|
|
|
|
// Update the light client if we're behind.
|
|
l, err := c.updateLightClientIfNeededTo(ctx, &res.Block.Height)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Verify block.
|
|
if bH, tH := res.Block.Hash(), l.Hash(); !bytes.Equal(bH, tH) {
|
|
return nil, fmt.Errorf("block header %X does not match with trusted header %X",
|
|
bH, tH)
|
|
}
|
|
|
|
return res, nil
|
|
}
|
|
|
|
// BlockByHash calls rpcclient#BlockByHash and then verifies the result.
|
|
func (c *Client) BlockByHash(ctx context.Context, hash tmbytes.HexBytes) (*coretypes.ResultBlock, error) {
|
|
res, err := c.next.BlockByHash(ctx, hash)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Validate res.
|
|
if err := res.BlockID.ValidateBasic(); err != nil {
|
|
return nil, err
|
|
}
|
|
if err := res.Block.ValidateBasic(); err != nil {
|
|
return nil, err
|
|
}
|
|
if bmH, bH := res.BlockID.Hash, res.Block.Hash(); !bytes.Equal(bmH, bH) {
|
|
return nil, fmt.Errorf("blockID %X does not match with block %X",
|
|
bmH, bH)
|
|
}
|
|
|
|
// Update the light client if we're behind.
|
|
l, err := c.updateLightClientIfNeededTo(ctx, &res.Block.Height)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Verify block.
|
|
if bH, tH := res.Block.Hash(), l.Hash(); !bytes.Equal(bH, tH) {
|
|
return nil, fmt.Errorf("block header %X does not match with trusted header %X",
|
|
bH, tH)
|
|
}
|
|
|
|
return res, nil
|
|
}
|
|
|
|
// BlockResults returns the block results for the given height. If no height is
|
|
// provided, the results of the block preceding the latest are returned.
|
|
func (c *Client) BlockResults(ctx context.Context, height *int64) (*coretypes.ResultBlockResults, error) {
|
|
var h int64
|
|
if height == nil {
|
|
res, err := c.next.Status(ctx)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("can't get latest height: %w", err)
|
|
}
|
|
// Can't return the latest block results here because we won't be able to
|
|
// prove them. Return the results for the previous block instead.
|
|
h = res.SyncInfo.LatestBlockHeight - 1
|
|
} else {
|
|
h = *height
|
|
}
|
|
|
|
res, err := c.next.BlockResults(ctx, &h)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Validate res.
|
|
if res.Height <= 0 {
|
|
return nil, coretypes.ErrZeroOrNegativeHeight
|
|
}
|
|
|
|
// Update the light client if we're behind.
|
|
nextHeight := h + 1
|
|
trustedBlock, err := c.updateLightClientIfNeededTo(ctx, &nextHeight)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// proto-encode FinalizeBlock events
|
|
bbeBytes, err := proto.Marshal(&abci.ResponseFinalizeBlock{
|
|
Events: res.FinalizeBlockEvents,
|
|
})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Build a Merkle tree of proto-encoded FinalizeBlock tx results and get a hash.
|
|
results := types.NewResults(res.TxsResults)
|
|
|
|
// Build a Merkle tree out of the above 3 binary slices.
|
|
rH := merkle.HashFromByteSlices([][]byte{bbeBytes, results.Hash()})
|
|
|
|
// Verify block results.
|
|
if !bytes.Equal(rH, trustedBlock.LastResultsHash) {
|
|
return nil, fmt.Errorf("last results %X does not match with trusted last results %X",
|
|
rH, trustedBlock.LastResultsHash)
|
|
}
|
|
|
|
return res, nil
|
|
}
|
|
|
|
// Header fetches and verifies the header directly via the light client
|
|
func (c *Client) Header(ctx context.Context, height *int64) (*coretypes.ResultHeader, error) {
|
|
lb, err := c.updateLightClientIfNeededTo(ctx, height)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return &coretypes.ResultHeader{Header: lb.Header}, nil
|
|
}
|
|
|
|
// HeaderByHash calls rpcclient#HeaderByHash and updates the client if it's falling behind.
|
|
func (c *Client) HeaderByHash(ctx context.Context, hash tmbytes.HexBytes) (*coretypes.ResultHeader, error) {
|
|
res, err := c.next.HeaderByHash(ctx, hash)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if err := res.Header.ValidateBasic(); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
lb, err := c.updateLightClientIfNeededTo(ctx, &res.Header.Height)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if !bytes.Equal(lb.Header.Hash(), res.Header.Hash()) {
|
|
return nil, fmt.Errorf("primary header hash does not match trusted header hash. (%X != %X)",
|
|
lb.Header.Hash(), res.Header.Hash())
|
|
}
|
|
|
|
return res, nil
|
|
}
|
|
|
|
func (c *Client) Commit(ctx context.Context, height *int64) (*coretypes.ResultCommit, error) {
|
|
// Update the light client if we're behind and retrieve the light block at the requested height
|
|
// or at the latest height if no height is provided.
|
|
l, err := c.updateLightClientIfNeededTo(ctx, height)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return &coretypes.ResultCommit{
|
|
SignedHeader: *l.SignedHeader,
|
|
CanonicalCommit: true,
|
|
}, nil
|
|
}
|
|
|
|
// Tx calls rpcclient#Tx method and then verifies the proof if such was
|
|
// requested.
|
|
func (c *Client) Tx(ctx context.Context, hash tmbytes.HexBytes, prove bool) (*coretypes.ResultTx, error) {
|
|
res, err := c.next.Tx(ctx, hash, prove)
|
|
if err != nil || !prove {
|
|
return res, err
|
|
}
|
|
|
|
// Validate res.
|
|
if res.Height <= 0 {
|
|
return nil, coretypes.ErrZeroOrNegativeHeight
|
|
}
|
|
|
|
// Update the light client if we're behind.
|
|
l, err := c.updateLightClientIfNeededTo(ctx, &res.Height)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Validate the proof.
|
|
return res, res.Proof.Validate(l.DataHash)
|
|
}
|
|
|
|
func (c *Client) TxSearch(
|
|
ctx context.Context,
|
|
query string,
|
|
prove bool,
|
|
page, perPage *int,
|
|
orderBy string,
|
|
) (*coretypes.ResultTxSearch, error) {
|
|
return c.next.TxSearch(ctx, query, prove, page, perPage, orderBy)
|
|
}
|
|
|
|
func (c *Client) BlockSearch(
|
|
ctx context.Context,
|
|
query string,
|
|
page, perPage *int,
|
|
orderBy string,
|
|
) (*coretypes.ResultBlockSearch, error) {
|
|
return c.next.BlockSearch(ctx, query, page, perPage, orderBy)
|
|
}
|
|
|
|
// Validators fetches and verifies validators.
|
|
func (c *Client) Validators(
|
|
ctx context.Context,
|
|
height *int64,
|
|
pagePtr, perPagePtr *int,
|
|
) (*coretypes.ResultValidators, error) {
|
|
|
|
// Update the light client if we're behind and retrieve the light block at the
|
|
// requested height or at the latest height if no height is provided.
|
|
l, err := c.updateLightClientIfNeededTo(ctx, height)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
totalCount := len(l.ValidatorSet.Validators)
|
|
perPage := validatePerPage(perPagePtr)
|
|
page, err := validatePage(pagePtr, perPage, totalCount)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
skipCount := validateSkipCount(page, perPage)
|
|
v := l.ValidatorSet.Validators[skipCount : skipCount+tmmath.MinInt(int(perPage), totalCount-skipCount)]
|
|
|
|
return &coretypes.ResultValidators{
|
|
BlockHeight: l.Height,
|
|
Validators: v,
|
|
Count: len(v),
|
|
Total: totalCount,
|
|
}, nil
|
|
}
|
|
|
|
func (c *Client) BroadcastEvidence(ctx context.Context, ev types.Evidence) (*coretypes.ResultBroadcastEvidence, error) {
|
|
return c.next.BroadcastEvidence(ctx, ev)
|
|
}
|
|
|
|
func (c *Client) Subscribe(ctx context.Context, subscriber, query string,
|
|
outCapacity ...int) (out <-chan coretypes.ResultEvent, err error) {
|
|
return c.next.Subscribe(ctx, subscriber, query, outCapacity...) //nolint:staticcheck
|
|
}
|
|
|
|
func (c *Client) Unsubscribe(ctx context.Context, subscriber, query string) error {
|
|
return c.next.Unsubscribe(ctx, subscriber, query) //nolint:staticcheck
|
|
}
|
|
|
|
func (c *Client) UnsubscribeAll(ctx context.Context, subscriber string) error {
|
|
return c.next.UnsubscribeAll(ctx, subscriber) //nolint:staticcheck
|
|
}
|
|
|
|
func (c *Client) updateLightClientIfNeededTo(ctx context.Context, height *int64) (*types.LightBlock, error) {
|
|
var (
|
|
l *types.LightBlock
|
|
err error
|
|
)
|
|
if height == nil {
|
|
l, err = c.lc.Update(ctx, time.Now())
|
|
} else {
|
|
l, err = c.lc.VerifyLightBlockAtHeight(ctx, *height, time.Now())
|
|
}
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to update light client: %w", err)
|
|
}
|
|
return l, nil
|
|
}
|
|
|
|
func (c *Client) RegisterOpDecoder(typ string, dec merkle.OpDecoder) {
|
|
c.prt.RegisterOpDecoder(typ, dec)
|
|
}
|
|
|
|
// SubscribeWS subscribes for events using the given query and remote address as
|
|
// a subscriber, but does not verify responses (UNSAFE)!
|
|
// TODO: verify data
|
|
func (c *Client) SubscribeWS(ctx context.Context, query string) (*coretypes.ResultSubscribe, error) {
|
|
bctx, bcancel := context.WithCancel(context.Background())
|
|
c.closers = append(c.closers, bcancel)
|
|
|
|
callInfo := rpctypes.GetCallInfo(ctx)
|
|
out, err := c.next.Subscribe(bctx, callInfo.RemoteAddr(), query) //nolint:staticcheck
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
go func() {
|
|
for {
|
|
select {
|
|
case resultEvent := <-out:
|
|
// We should have a switch here that performs a validation
|
|
// depending on the event's type.
|
|
callInfo.WSConn.TryWriteRPCResponse(bctx, callInfo.RPCRequest.MakeResponse(resultEvent))
|
|
case <-bctx.Done():
|
|
return
|
|
}
|
|
}
|
|
}()
|
|
|
|
return &coretypes.ResultSubscribe{}, nil
|
|
}
|
|
|
|
// UnsubscribeWS calls original client's Unsubscribe using remote address as a
|
|
// subscriber.
|
|
func (c *Client) UnsubscribeWS(ctx context.Context, query string) (*coretypes.ResultUnsubscribe, error) {
|
|
err := c.next.Unsubscribe(context.Background(), rpctypes.GetCallInfo(ctx).RemoteAddr(), query) //nolint:staticcheck
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return &coretypes.ResultUnsubscribe{}, nil
|
|
}
|
|
|
|
// UnsubscribeAllWS calls original client's UnsubscribeAll using remote address
|
|
// as a subscriber.
|
|
func (c *Client) UnsubscribeAllWS(ctx context.Context) (*coretypes.ResultUnsubscribe, error) {
|
|
err := c.next.UnsubscribeAll(context.Background(), rpctypes.GetCallInfo(ctx).RemoteAddr()) //nolint:staticcheck
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return &coretypes.ResultUnsubscribe{}, nil
|
|
}
|
|
|
|
// XXX: Copied from rpc/core/env.go
|
|
const (
|
|
// see README
|
|
defaultPerPage = 30
|
|
maxPerPage = 100
|
|
)
|
|
|
|
func validatePage(pagePtr *int, perPage uint, totalCount int) (int, error) {
|
|
|
|
if pagePtr == nil { // no page parameter
|
|
return 1, nil
|
|
}
|
|
|
|
pages := ((totalCount - 1) / int(perPage)) + 1
|
|
if pages == 0 {
|
|
pages = 1 // one page (even if it's empty)
|
|
}
|
|
page := *pagePtr
|
|
if page <= 0 || page > pages {
|
|
return 1, fmt.Errorf("%w expected range: [1, %d], given %d", coretypes.ErrPageOutOfRange, pages, page)
|
|
}
|
|
|
|
return page, nil
|
|
}
|
|
|
|
func validatePerPage(perPagePtr *int) uint {
|
|
if perPagePtr == nil { // no per_page parameter
|
|
return defaultPerPage
|
|
}
|
|
|
|
perPage := *perPagePtr
|
|
if perPage < 1 {
|
|
return defaultPerPage
|
|
} else if perPage > maxPerPage {
|
|
return maxPerPage
|
|
}
|
|
return uint(perPage)
|
|
}
|
|
|
|
func validateSkipCount(page int, perPage uint) int {
|
|
skipCount := (page - 1) * int(perPage)
|
|
if skipCount < 0 {
|
|
return 0
|
|
}
|
|
|
|
return skipCount
|
|
}
|