small fixes to spec & http_server & Vagrantfile (#2859)

* Vagrantfile: install dev_tools

Follow-up on https://github.com/tendermint/tendermint/pull/2824

* update consensus params spec

* fix test name

* rpc_test: panic if failed to start listener

also
- remove http_server#MustListen
- align StartHTTPServer and StartHTTPAndTLSServer functions

* dep: allow minor releases for grpc

Gopkg.toml

@@ -65,7 +65,7 @@
 
 [[constraint]]
   name = "google.golang.org/grpc"
-  version = "~1.13.0"
+  version = "^1.13.0"
 
 [[constraint]]
   name = "github.com/fortytw2/leaktest"

Vagrantfile

@@ -53,6 +53,6 @@ Vagrant.configure("2") do |config|
 
     # get all deps and tools, ready to install/test
     su - vagrant  -c 'source /home/vagrant/.bash_profile'
-    su - vagrant -c 'cd /home/vagrant/go/src/github.com/tendermint/tendermint && make get_tools && make get_vendor_deps'
+    su - vagrant -c 'cd /home/vagrant/go/src/github.com/tendermint/tendermint && make get_tools && make get_dev_tools && make get_vendor_deps'
   SHELL
 end

docs/spec/blockchain/state.md

@@ -79,31 +79,25 @@ func TotalVotingPower(vals []Validators) int64{
 ConsensusParams define various limits for blockchain data structures.
 Like validator sets, they are set during genesis and can be updated by the application through ABCI.
 
-```
+```go
 type ConsensusParams struct {
 	BlockSize
-	TxSize
-	BlockGossip
-	EvidenceParams
+	Evidence
+	Validator
 }
 
 type BlockSize struct {
-	MaxBytes        int
+	MaxBytes        int64
 	MaxGas          int64
 }
 
-type TxSize struct {
-	MaxBytes int
-	MaxGas   int64
-}
-
-type BlockGossip struct {
-	BlockPartSizeBytes int
-}
-
-type EvidenceParams struct {
+type Evidence struct {
 	MaxAge int64
 }
+
+type Validator struct {
+	PubKeyTypes []string
+}
 ```
 
 #### BlockSize
@@ -115,20 +109,15 @@ otherwise.
 Blocks should additionally be limited by the amount of "gas" consumed by the
 transactions in the block, though this is not yet implemented.
 
-#### TxSize
-
-These parameters are not yet enforced and may disappear. See [issue
-#2347](https://github.com/tendermint/tendermint/issues/2347).
-
-#### BlockGossip
-
-When gossipping blocks in the consensus, they are first split into parts. The
-size of each part is `ConsensusParams.BlockGossip.BlockPartSizeBytes`.
-
-#### EvidenceParams
+#### Evidence
 
 For evidence in a block to be valid, it must satisfy:
 
 ```
-block.Header.Height - evidence.Height < ConsensusParams.EvidenceParams.MaxAge
+block.Header.Height - evidence.Height < ConsensusParams.Evidence.MaxAge
 ```
+
+#### Validator
+
+Validators from genesis file and `ResponseEndBlock` must have pubkeys of type ∈
+`ConsensusParams.Validator.PubKeyTypes`.

rpc/lib/rpc_test.go

@@ -134,6 +134,9 @@ func setup() {
 	wm.SetLogger(unixLogger)
 	mux2.HandleFunc(websocketEndpoint, wm.WebsocketHandler)
 	listener2, err := server.Listen(unixAddr, server.Config{})
+	if err != nil {
+		panic(err)
+	}
 	go server.StartHTTPServer(listener2, mux2, unixLogger)
 
 	// wait for servers to start

rpc/lib/server/http_server.go

@@ -33,12 +33,12 @@ const (
 // It wraps handler with RecoverAndLogHandler.
 // NOTE: This function blocks - you may want to call it in a go-routine.
 func StartHTTPServer(listener net.Listener, handler http.Handler, logger log.Logger) error {
+	logger.Info(fmt.Sprintf("Starting RPC HTTP server on %s", listener.Addr()))
 	err := http.Serve(
 		listener,
 		RecoverAndLogHandler(maxBytesHandler{h: handler, n: maxBodyBytes}, logger),
 	)
 	logger.Info("RPC HTTP server stopped", "err", err)
-
 	return err
 }
 
@@ -51,24 +51,16 @@ func StartHTTPAndTLSServer(
 	certFile, keyFile string,
 	logger log.Logger,
 ) error {
-	logger.Info(
-		fmt.Sprintf(
-			"Starting RPC HTTPS server on %s (cert: %q, key: %q)",
-			listener.Addr(),
-			certFile,
-			keyFile,
-		),
-	)
-	if err := http.ServeTLS(
+	logger.Info(fmt.Sprintf("Starting RPC HTTPS server on %s (cert: %q, key: %q)",
+		listener.Addr(), certFile, keyFile))
+	err := http.ServeTLS(
 		listener,
 		RecoverAndLogHandler(maxBytesHandler{h: handler, n: maxBodyBytes}, logger),
 		certFile,
 		keyFile,
-	); err != nil {
-		logger.Error("RPC HTTPS server stopped", "err", err)
-		return err
-	}
-	return nil
+	)
+	logger.Info("RPC HTTPS server stopped", "err", err)
+	return err
 }
 
 func WriteRPCResponseHTTPError(
@@ -170,16 +162,6 @@ func (h maxBytesHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	h.h.ServeHTTP(w, r)
 }
 
-// MustListen starts a new net.Listener on the given address.
-// It panics in case of error.
-func MustListen(addr string, config Config) net.Listener {
-	l, err := Listen(addr, config)
-	if err != nil {
-		panic(fmt.Errorf("Listen() failed: %v", err))
-	}
-	return l
-}
-
 // Listen starts a new net.Listener on the given address.
 // It returns an error if the address is invalid or the call to Listen() fails.
 func Listen(addr string, config Config) (listener net.Listener, err error) {

types/part_set_test.go

@@ -84,8 +84,7 @@ func TestWrongProof(t *testing.T) {
 	}
 }
 
-func TestPartSetHeaderSetValidateBasic(t *testing.T) {
-
+func TestPartSetHeaderValidateBasic(t *testing.T) {
 	testCases := []struct {
 		testName              string
 		malleatePartSetHeader func(*PartSetHeader)
@@ -107,7 +106,6 @@ func TestPartSetHeaderSetValidateBasic(t *testing.T) {
 }
 
 func TestPartValidateBasic(t *testing.T) {
-
 	testCases := []struct {
 		testName     string
 		malleatePart func(*Part)