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rpc: remove startup error for invalid modules, log it instead (#20684)

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This removes the error added in #20597 in favor of a log message at
error level. Failing to start broke a bunch of people's setups and is
probably not the right thing to do for this check.
This commit is contained in:
Felix Lange 2020-02-17 17:33:32 +01:00 committed by GitHub
parent 1b9c5b393b
commit 91b228966e
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 13 additions and 18 deletions
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31
rpc/endpoints.go
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@ -17,7 +17,6 @@
package rpc
import (
"fmt"
"net"
"github.com/ethereum/go-ethereum/log"
@ -25,30 +24,26 @@ import (
// checkModuleAvailability check that all names given in modules are actually
// available API services.
func checkModuleAvailability(modules []string, apis []API) error {
available := make(map[string]struct{})
var availableNames string
for i, api := range apis {
if _, ok := available[api.Namespace]; !ok {
available[api.Namespace] = struct{}{}
if i > 0 {
availableNames += ", "
}
availableNames += api.Namespace
func checkModuleAvailability(modules []string, apis []API) (bad, available []string) {
availableSet := make(map[string]struct{})
for _, api := range apis {
if _, ok := availableSet[api.Namespace]; !ok {
availableSet[api.Namespace] = struct{}{}
available = append(available, api.Namespace)
}
}
for _, name := range modules {
if _, ok := available[name]; !ok {
return fmt.Errorf("invalid API %q in whitelist (available: %s)", name, availableNames)
if _, ok := availableSet[name]; !ok {
bad = append(bad, name)
}
}
return nil
return bad, available
}
// StartHTTPEndpoint starts the HTTP RPC endpoint, configured with cors/vhosts/modules.
func StartHTTPEndpoint(endpoint string, apis []API, modules []string, cors []string, vhosts []string, timeouts HTTPTimeouts) (net.Listener, *Server, error) {
if err := checkModuleAvailability(modules, apis); err != nil {
return nil, nil, err
if bad, available := checkModuleAvailability(modules, apis); len(bad) > 0 {
log.Error("Unavailable modules in HTTP API list", "unavailable", bad, "available", available)
}
// Generate the whitelist based on the allowed modules
whitelist := make(map[string]bool)
@ -79,8 +74,8 @@ func StartHTTPEndpoint(endpoint string, apis []API, modules []string, cors []str
// StartWSEndpoint starts a websocket endpoint.
func StartWSEndpoint(endpoint string, apis []API, modules []string, wsOrigins []string, exposeAll bool) (net.Listener, *Server, error) {
if err := checkModuleAvailability(modules, apis); err != nil {
return nil, nil, err
if bad, available := checkModuleAvailability(modules, apis); len(bad) > 0 {
log.Error("Unavailable modules in WS API list", "unavailable", bad, "available", available)
}
// Generate the whitelist based on the allowed modules
whitelist := make(map[string]bool)