rpc: Evidence Endpoint by mossid · Pull Request #2630 · tendermint/tendermint

mossid · 2018-10-13T10:04:20Z

Updated all relevant documentation in docs
Updated all code comments where relevant
Wrote tests
Updated CHANGELOG_PENDING.md

Closes: #2252

codecov-io · 2018-10-13T11:15:41Z

Codecov Report

Merging #2630 into develop will decrease coverage by 0.1%.
The diff coverage is 31.42%.

@@             Coverage Diff             @@
##           develop    #2630      +/-   ##
===========================================
- Coverage    61.38%   61.27%   -0.11%     
===========================================
  Files          203      204       +1     
  Lines        16739    16832      +93     
===========================================
+ Hits         10275    10314      +39     
- Misses        5590     5646      +56     
+ Partials       874      872       -2

Impacted Files	Coverage Δ
rpc/core/routes.go	`0% <ø> (ø)`	⬆️
rpc/core/evidence.go	`0% <0%> (ø)`
abci/example/kvstore/persistent_kvstore.go	`58.71% <45.83%> (-5.33%)`	⬇️
p2p/node_info.go	`50.64% <0%> (-7.33%)`	⬇️
state/state.go	`88.5% <0%> (-2.8%)`	⬇️
state/validation.go	`61.4% <0%> (-2.54%)`	⬇️
p2p/errors.go	`10.34% <0%> (-0.19%)`	⬇️
p2p/transport.go	`80.09% <0%> (-0.1%)`	⬇️
rpc/core/net.go	`0% <0%> (ø)`	⬆️
rpc/core/status.go	`0% <0%> (ø)`	⬆️
... and 13 more

ebuchman

Great work thanks @mossid. Is there a reason it's still marked WIP?

rpc/core/evidence.go

abci/example/kvstore/kvstore.go

ebuchman · 2018-10-20T12:02:40Z

rpc/client/rpc_test.go

+
+func newEvidence(t *testing.T, val *privval.FilePV, vote1 *types.Vote, vote2 *types.Vote, chainID string) types.DuplicateVoteEvidence {
+	var err error
+	vote1_ := deepcpVote(vote1)


why do we need to do this?

melekes · 2018-10-20T15:26:59Z

rpc/client/rpc_test.go

+		qres := result2.Response
+		require.True(t, qres.IsOK(), "Response not OK, evidence %v", ev.String())
+
+		require.EqualValues(t, []byte{}, qres.Value, "Value not equal with expected, evidence %v, value %v", ev.String(), string(qres.Value))


do we really need a msg here? (require.EqualValues will output almost the same thing)

melekes · 2018-10-20T15:28:02Z

rpc/client/rpc_test.go

+		result2, err := c.ABCIQuery("/key", ev.PubKey.Address())
+		require.Nil(t, err, "Error querying evidence, evidence %v", ev.String())
+		qres := result2.Response
+		require.True(t, qres.IsOK(), "Response not OK, evidence %v", ev.String())


you can log evidence in the beginning on the loop instead of logging it every time

t.Log("evidence: ", ev.String())

melekes

🍏

abci/example/kvstore/persistent_kvstore.go

melekes · 2018-11-26T09:52:39Z

rpc/client/main_test.go

 func TestMain(m *testing.M) {
 	// start a tendermint node (and kvstore) in the background to test against
-	app := kvstore.NewKVStoreApplication()
+	dir, err := ioutil.TempDir("/tmp", "rpc-client-test")


Suggested change

dir, err := ioutil.TempDir("/tmp", "rpc-client-test")

dir, err := ioutil.TempDir("", "rpc-client-test")

Why locally? Wouldn't /tmp be better? Or problem is its not cross platform? We need to clean up this dir at the end regardless.

rpc/client/main_test.go

jackzampolin · 2018-12-15T20:03:07Z

@mossid Can you finish up this PR? We need it to test evidence in the SDK: cosmos/cosmos-sdk#2111

ebuchman · 2018-12-16T00:01:20Z

abci/example/kvstore/persistent_kvstore.go

+			// decrease voting power by 1
+			app.updateValidator(types.ValidatorUpdate{
+				PubKey: app.relation[string(ev.Validator.Address)],
+				Power:  ev.TotalVotingPower - 1,


I think we need to bound this at 0

ebuchman · 2018-12-16T00:03:57Z

rpc/client/interface.go

 	Validators(height *int64) (*ctypes.ResultValidators, error)
 	Tx(hash []byte, prove bool) (*ctypes.ResultTx, error)
 	TxSearch(query string, prove bool, page, perPage int) (*ctypes.ResultTxSearch, error)
+	BroadcastDuplicateVote(pubkey crypto.PubKey, vote1 types.Vote, vote2 types.Vote) (*ctypes.ResultBroadcastDuplicateVote, error)


Why is this the right interface to add this method to?

ebuchman · 2018-12-16T00:05:35Z

rpc/client/main_test.go

 func TestMain(m *testing.M) {
 	// start a tendermint node (and kvstore) in the background to test against
-	app := kvstore.NewKVStoreApplication()
+	dir, err := ioutil.TempDir("/tmp", "rpc-client-test")


Why locally? Wouldn't /tmp be better? Or problem is its not cross platform? We need to clean up this dir at the end regardless.

ebuchman · 2018-12-16T00:10:03Z

rpc/client/rpc_test.go

+
+func newEvidence(t *testing.T, val *privval.FilePV, vote *types.Vote, vote2 *types.Vote, chainID string) types.DuplicateVoteEvidence {
+	var err error
+	vote2_ := deepcpVote(vote2)


could benefit from some comments about why we need this

ebuchman · 2018-12-16T00:12:09Z

rpc/client/rpc_test.go

+		require.NoError(t, err, "Error reading query result, value %v", qres.Value)
+
+		require.EqualValues(t, rawpub, v.PubKey.Data, "Stored PubKey not equal with expected, value %v", string(qres.Value))
+		require.Equal(t, int64(9), v.Power, "Stored Power not equal with expected, value %v", string(qres.Value))


Where does this 9 come from? Can we make it programmatic?

ebuchman · 2018-12-16T00:13:11Z

rpc/client/rpc_test.go

+
+		for _, fake := range fakes {
+			_, err := c.BroadcastDuplicateVote(fake.PubKey, *fake.VoteA, *fake.VoteB)
+			require.Error(t, err, "Broadcasting fake evidence succeed", fake.String())


Can we ensure these are errors with the evidence and not the HTTP call?

ebuchman · 2018-12-16T00:17:58Z

rpc/core/evidence.go

+	if err := vote1.Verify(chainID, pubkey); err != nil {
+		return nil, fmt.Errorf("Error broadcasting evidence, invalid vote1: %v", err)
+	}
+	if err := vote2.Verify(chainID, pubkey); err != nil {


Actually I don't think we need either of these vote.Verify since it's all handled in evidencePool.AddEvidence

ebuchman · 2018-12-16T00:21:41Z

rpc/core/evidence.go

+	"github.com/tendermint/tendermint/types"
+)
+
+// ### Query Parameters


Broadcast Duplicate Vote Parameters

ebuchman · 2018-12-16T00:25:08Z

rpc/client/rpc_test.go

+
+		info, err := c.BlockchainInfo(0, 0)
+		require.NoError(t, err)
+		client.WaitForHeight(c, info.LastHeight+1, nil)


We should also query for the block and check that it included the evidence correctly ...

Co-Authored-By: mossid <torecursedivine@gmail.com>

… into joon/2252-evidence-rpc

xla · 2019-03-20T18:35:16Z

@ebuchman @melekes What's the state of this one? Stiil relevant? Worth to bring up to date?

melekes · 2019-03-20T18:45:32Z

Someone needs to take this on. Still relevant

melekes · 2019-03-26T17:02:25Z

Closing in favor of #3481

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implement broadcast_duplicate_vote endpoint

93e2350

mossid requested review from ebuchman, melekes and xla as code owners October 13, 2018 10:04

fix test_cover

1a339fd

ebuchman approved these changes Oct 20, 2018

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melekes reviewed Oct 20, 2018

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mossid added 2 commits November 6, 2018 18:11

address comments

2420536

address comments

1b978c0

melekes reviewed Nov 26, 2018

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melekes changed the title ~~[WIP] RPC Evidence Endpoint~~ RPC Evidence Endpoint Nov 26, 2018

Merge branch 'develop' into joon/2252-evidence-rpc

0d7f17c

ebuchman self-assigned this Dec 15, 2018

ebuchman reviewed Dec 16, 2018

View reviewed changes

HaoyangLiu mentioned this pull request Jan 22, 2019

Keep track of important Tendermint issues and PRs irisnet/irishub#1137

Closed

melekes added the help wanted label Jan 24, 2019

melekes and others added 5 commits February 8, 2019 11:26

Update abci/example/kvstore/persistent_kvstore.go

44be039

Co-Authored-By: mossid <torecursedivine@gmail.com>

Update rpc/client/main_test.go

0e0e0e8

Co-Authored-By: mossid <torecursedivine@gmail.com>

Merge branch 'develop' into joon/2252-evidence-rpc

c4f1b75

Merge branch 'joon/2252-evidence-rpc' of github.com:mossid/tendermint…

29a7bea

… into joon/2252-evidence-rpc

address comments in progress

f89daec

xla changed the title ~~RPC Evidence Endpoint~~ rpc: Evidence Endpoint Mar 20, 2019

Merge branch 'develop' into joon/2252-evidence-rpc

73f8054

melekes unassigned ebuchman Mar 26, 2019

melekes mentioned this pull request Mar 26, 2019

rpc: /broadcast_evidence #3481

Merged

4 tasks

melekes closed this Mar 26, 2019

	dir, err := ioutil.TempDir("/tmp", "rpc-client-test")
	dir, err := ioutil.TempDir("", "rpc-client-test")

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