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fix: rosetta getHeight function to use tmRPC.GenesisChunked() instead tmRPC.Genesis() #10340

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merged 6 commits into from Oct 19, 2021
Merged

fix: rosetta getHeight function to use tmRPC.GenesisChunked() instead tmRPC.Genesis() #10340

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e3e42cd
fix getHeight function to use tmRPC.GenesisChunked() instead tmRPC.Ge…
yun-yeo Oct 12, 2021
e31f6ef
fix: null guard for tx fee amounts (#10327)
clockworkgr Oct 12, 2021
8ba4aaf
docs: Added staking client docs. (#10306)
juggernaut09 Oct 12, 2021
12833f2
clean changelog
yun-yeo Oct 12, 2021
e9bb140
fix test
yun-yeo Oct 19, 2021
ef42cff
Merge branch 'master' into bugfix/rosetta-genensis-block-loading
yun-yeo Oct 19, 2021
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3 changes: 2 additions & 1 deletion CHANGELOG.md
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Expand Up @@ -135,7 +135,8 @@ Ref: https://keepachangelog.com/en/1.0.0/

### Bug Fixes

* (client) [#10226](https://github.com/cosmos/cosmos-sdk/pull/10226) Fix --home flag parsing.
* (rosetta) [\#10340](https://github.com/cosmos/cosmos-sdk/pull/10340) Use `GenesisChunked(ctx)` instead `Genesis(ctx)` to get genesis block height
* (client) [#10226](https://github.com/cosmos/cosmos-sdk/pull/10226) Fix --home flag parsing.
* [#10180](https://github.com/cosmos/cosmos-sdk/issues/10180) Documentation: make references to Cosmos SDK consistent
* (x/genutil) [#10104](https://github.com/cosmos/cosmos-sdk/pull/10104) Ensure the `init` command reads the `--home` flag value correctly.
* [\#9651](https://github.com/cosmos/cosmos-sdk/pull/9651) Change inconsistent limit of `0` to `MaxUint64` on InfiniteGasMeter and add GasRemaining func to GasMeter.
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33 changes: 31 additions & 2 deletions server/rosetta/client_online.go
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Expand Up @@ -3,8 +3,11 @@ package rosetta
import (
"bytes"
"context"
"encoding/base64"
"encoding/hex"
"errors"
"fmt"
"regexp"
"strconv"
"time"

Expand Down Expand Up @@ -481,13 +484,39 @@ func (c *Client) blockTxs(ctx context.Context, height *int64) (crgtypes.BlockTra

func (c *Client) getHeight(ctx context.Context, height *int64) (realHeight *int64, err error) {
if height != nil && *height == -1 {
genesis, err := c.tmRPC.Genesis(ctx)
genesisChunk, err := c.tmRPC.GenesisChunked(ctx, 0)
if err != nil {
return nil, err
}
realHeight = &(genesis.Genesis.InitialHeight)

heightNum, err := extractInitialHeightFromGenesisChunk(genesisChunk.Data)
if err != nil {
return nil, err
}

realHeight = &heightNum
} else {
realHeight = height
}
return
}

func extractInitialHeightFromGenesisChunk(genesisChunk string) (int64, error) {
firstChunk, err := base64.StdEncoding.DecodeString(genesisChunk)
if err != nil {
return 0, err
}

re, err := regexp.Compile("\"initial_height\":\"(\\d+)\"")
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this works, but can we not just decode into a map? I guess this would be faster...

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I tried, but the chunked data is not complete JSON string, so hard to decode it to map.

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Really? The chunked response is a JSON object. How is it not complete? Do you have an example response?

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@yun-yeo yun-yeo Oct 19, 2021 •
edited

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Ah I mean, the chunked genesis is not complete JSON.

The response itself is JSON.

Here is genesis_chunk response example

if err != nil {
return 0, err
}

matches := re.FindStringSubmatch(string(firstChunk))
if len(matches) != 2 {
return 0, errors.New("failed to fetch initial_height")
}

heightStr := matches[1]
return strconv.ParseInt(heightStr, 10, 64)
}
15 changes: 15 additions & 0 deletions server/rosetta/client_online_test.go
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@@ -0,0 +1,15 @@
package rosetta

import (
"encoding/base64"
"testing"

"github.com/stretchr/testify/require"
)

func TestRegex(t *testing.T) {
genesisChuck := base64.StdEncoding.EncodeToString([]byte(`"genesis_time":"2021-09-28T09:00:00Z","chain_id":"bombay-12","initial_height":"5900001","consensus_params":{"block":{"max_bytes":"5000000","max_gas":"1000000000","time_iota_ms":"1000"},"evidence":{"max_age_num_blocks":"100000","max_age_duration":"172800000000000","max_bytes":"50000"},"validator":{"pub_key_types":["ed25519"]},"version":{}},"validators":[{"address":"EEA4891F5F8D523A6B4B3EAC84B5C08655A00409","pub_key":{"type":"tendermint/PubKeyEd25519","value":"UX71gTBNumQq42qRd6j/K8XN/y3/HAcuAJxj97utawI="},"power":"60612","name":"BTC.Secure"},{"address":"973F589DE1CC8A54ABE2ABE0E0A4ABF13A9EBAE4","pub_key":{"type":"tendermint/PubKeyEd25519","value":"AmGQvQSAAXzSIscx/6o4rVdRMT9QvairQHaCXsWhY+c="},"power":"835","name":"MoonletWallet"},{"address":"831F402BDA0C9A3F260D4F221780BC22A4C3FB23","pub_key":{"type":"tendermint/PubKeyEd25519","value":"Tw8yKbPNEo113ZNbJJ8joeXokoMdBoazRTwb1NQ77WA="},"power":"102842","name":"BlockNgine"},{"address":"F2683F267D2B4C8714B44D68612DB37A8DD2EED7","pub_key":{"type":"tendermint/PubKeyEd25519","value":"PVE4IcWDE6QEqJSEkx55IDkg5zxBo8tVRzKFMJXYFSQ="},"power":"23200","name":"Luna Station 88"},{"address":"9D2428CBAC68C654BE11BE405344C560E6A0F626","pub_key":{"type":"tendermint/PubKeyEd25519","value":"93hzGmZjPRqOnQkb8BULjqanW3M2p1qIcLVTGkf1Zhk="},"power":"35420","name":"Terra-India"},{"address":"DC9897F22E74BF1B66E2640FA461F785F9BA7627","pub_key":{"type":"tendermint/PubKeyEd25519","value":"mlYb/Dzqwh0YJjfH59OZ4vtp+Zhdq5Oj5MNaGHq1X0E="},"power":"25163","name":"SolidStake"},{"address":"AA1A027E270A2BD7AF154999E6DE9D39C5711DE7","pub_key":{"type":"tendermint/PubKeyEd25519","value":"28z8FlpbC7sR0f1Q8OWFASDNi0FAmdldzetwQ07JJzg="},"power":"34529","name":"syncnode"},{"address":"E548735750DC5015ADDE3B0E7A1294C3B868680B","pub_key":{"type":"tendermint/PubKeyEd25519","value":"BTDtLSKp4wpQrWBwmGvp9isWC5jXaAtX1nrJtsCEWew="},"power":"36082","name":"OneStar"}`))
height, err := extractInitialHeightFromGenesisChunk(genesisChuck)
require.NoError(t, err)
require.Equal(t, height, int64(5900001))
}