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limit number of /subscribe clients and queries per client (#3269) * limit number of /subscribe clients and queries per client Add the following config variables (under [rpc] section): * max_subscription_clients * max_subscriptions_per_client * timeout_broadcast_tx_commit Fixes #2826 new HTTPClient interface for subscriptions finalize HTTPClient events interface remove EventSubscriber fix data race ``` WARNING: DATA RACE Read at 0x00c000a36060 by goroutine 129: github.com/tendermint/tendermint/rpc/client.(*Local).Subscribe.func1() /go/src/github.com/tendermint/tendermint/rpc/client/localclient.go:168 +0x1f0 Previous write at 0x00c000a36060 by goroutine 132: github.com/tendermint/tendermint/rpc/client.(*Local).Subscribe() /go/src/github.com/tendermint/tendermint/rpc/client/localclient.go:191 +0x4e0 github.com/tendermint/tendermint/rpc/client.WaitForOneEvent() /go/src/github.com/tendermint/tendermint/rpc/client/helpers.go:64 +0x178 github.com/tendermint/tendermint/rpc/client_test.TestTxEventsSentWithBroadcastTxSync.func1() /go/src/github.com/tendermint/tendermint/rpc/client/event_test.go:139 +0x298 testing.tRunner() /usr/local/go/src/testing/testing.go:827 +0x162 Goroutine 129 (running) created at: github.com/tendermint/tendermint/rpc/client.(*Local).Subscribe() /go/src/github.com/tendermint/tendermint/rpc/client/localclient.go:164 +0x4b7 github.com/tendermint/tendermint/rpc/client.WaitForOneEvent() /go/src/github.com/tendermint/tendermint/rpc/client/helpers.go:64 +0x178 github.com/tendermint/tendermint/rpc/client_test.TestTxEventsSentWithBroadcastTxSync.func1() /go/src/github.com/tendermint/tendermint/rpc/client/event_test.go:139 +0x298 testing.tRunner() /usr/local/go/src/testing/testing.go:827 +0x162 Goroutine 132 (running) created at: testing.(*T).Run() /usr/local/go/src/testing/testing.go:878 +0x659 github.com/tendermint/tendermint/rpc/client_test.TestTxEventsSentWithBroadcastTxSync() /go/src/github.com/tendermint/tendermint/rpc/client/event_test.go:119 +0x186 testing.tRunner() /usr/local/go/src/testing/testing.go:827 +0x162 ================== ``` lite client works (tested manually) godoc comments httpclient: do not close the out channel use TimeoutBroadcastTxCommit no timeout for unsubscribe but 1s Local (5s HTTP) timeout for resubscribe format code change Subscribe#out cap to 1 and replace config vars with RPCConfig TimeoutBroadcastTxCommit can't be greater than rpcserver.WriteTimeout rpc: Context as first parameter to all functions reformat code fixes after my own review fixes after Ethan's review add test stubs fix config.toml * fixes after manual testing - rpc: do not recommend to use BroadcastTxCommit because it's slow and wastes Tendermint resources (pubsub) - rpc: better error in Subscribe and BroadcastTxCommit - HTTPClient: do not resubscribe if err = ErrAlreadySubscribed * fixes after Ismail's review * Update rpc/grpc/grpc_test.go Co-Authored-By: melekes <anton.kalyaev@gmail.com>
6 years ago
7 years ago
limit number of /subscribe clients and queries per client (#3269) * limit number of /subscribe clients and queries per client Add the following config variables (under [rpc] section): * max_subscription_clients * max_subscriptions_per_client * timeout_broadcast_tx_commit Fixes #2826 new HTTPClient interface for subscriptions finalize HTTPClient events interface remove EventSubscriber fix data race ``` WARNING: DATA RACE Read at 0x00c000a36060 by goroutine 129: github.com/tendermint/tendermint/rpc/client.(*Local).Subscribe.func1() /go/src/github.com/tendermint/tendermint/rpc/client/localclient.go:168 +0x1f0 Previous write at 0x00c000a36060 by goroutine 132: github.com/tendermint/tendermint/rpc/client.(*Local).Subscribe() /go/src/github.com/tendermint/tendermint/rpc/client/localclient.go:191 +0x4e0 github.com/tendermint/tendermint/rpc/client.WaitForOneEvent() /go/src/github.com/tendermint/tendermint/rpc/client/helpers.go:64 +0x178 github.com/tendermint/tendermint/rpc/client_test.TestTxEventsSentWithBroadcastTxSync.func1() /go/src/github.com/tendermint/tendermint/rpc/client/event_test.go:139 +0x298 testing.tRunner() /usr/local/go/src/testing/testing.go:827 +0x162 Goroutine 129 (running) created at: github.com/tendermint/tendermint/rpc/client.(*Local).Subscribe() /go/src/github.com/tendermint/tendermint/rpc/client/localclient.go:164 +0x4b7 github.com/tendermint/tendermint/rpc/client.WaitForOneEvent() /go/src/github.com/tendermint/tendermint/rpc/client/helpers.go:64 +0x178 github.com/tendermint/tendermint/rpc/client_test.TestTxEventsSentWithBroadcastTxSync.func1() /go/src/github.com/tendermint/tendermint/rpc/client/event_test.go:139 +0x298 testing.tRunner() /usr/local/go/src/testing/testing.go:827 +0x162 Goroutine 132 (running) created at: testing.(*T).Run() /usr/local/go/src/testing/testing.go:878 +0x659 github.com/tendermint/tendermint/rpc/client_test.TestTxEventsSentWithBroadcastTxSync() /go/src/github.com/tendermint/tendermint/rpc/client/event_test.go:119 +0x186 testing.tRunner() /usr/local/go/src/testing/testing.go:827 +0x162 ================== ``` lite client works (tested manually) godoc comments httpclient: do not close the out channel use TimeoutBroadcastTxCommit no timeout for unsubscribe but 1s Local (5s HTTP) timeout for resubscribe format code change Subscribe#out cap to 1 and replace config vars with RPCConfig TimeoutBroadcastTxCommit can't be greater than rpcserver.WriteTimeout rpc: Context as first parameter to all functions reformat code fixes after my own review fixes after Ethan's review add test stubs fix config.toml * fixes after manual testing - rpc: do not recommend to use BroadcastTxCommit because it's slow and wastes Tendermint resources (pubsub) - rpc: better error in Subscribe and BroadcastTxCommit - HTTPClient: do not resubscribe if err = ErrAlreadySubscribed * fixes after Ismail's review * Update rpc/grpc/grpc_test.go Co-Authored-By: melekes <anton.kalyaev@gmail.com>
6 years ago
limit number of /subscribe clients and queries per client (#3269) * limit number of /subscribe clients and queries per client Add the following config variables (under [rpc] section): * max_subscription_clients * max_subscriptions_per_client * timeout_broadcast_tx_commit Fixes #2826 new HTTPClient interface for subscriptions finalize HTTPClient events interface remove EventSubscriber fix data race ``` WARNING: DATA RACE Read at 0x00c000a36060 by goroutine 129: github.com/tendermint/tendermint/rpc/client.(*Local).Subscribe.func1() /go/src/github.com/tendermint/tendermint/rpc/client/localclient.go:168 +0x1f0 Previous write at 0x00c000a36060 by goroutine 132: github.com/tendermint/tendermint/rpc/client.(*Local).Subscribe() /go/src/github.com/tendermint/tendermint/rpc/client/localclient.go:191 +0x4e0 github.com/tendermint/tendermint/rpc/client.WaitForOneEvent() /go/src/github.com/tendermint/tendermint/rpc/client/helpers.go:64 +0x178 github.com/tendermint/tendermint/rpc/client_test.TestTxEventsSentWithBroadcastTxSync.func1() /go/src/github.com/tendermint/tendermint/rpc/client/event_test.go:139 +0x298 testing.tRunner() /usr/local/go/src/testing/testing.go:827 +0x162 Goroutine 129 (running) created at: github.com/tendermint/tendermint/rpc/client.(*Local).Subscribe() /go/src/github.com/tendermint/tendermint/rpc/client/localclient.go:164 +0x4b7 github.com/tendermint/tendermint/rpc/client.WaitForOneEvent() /go/src/github.com/tendermint/tendermint/rpc/client/helpers.go:64 +0x178 github.com/tendermint/tendermint/rpc/client_test.TestTxEventsSentWithBroadcastTxSync.func1() /go/src/github.com/tendermint/tendermint/rpc/client/event_test.go:139 +0x298 testing.tRunner() /usr/local/go/src/testing/testing.go:827 +0x162 Goroutine 132 (running) created at: testing.(*T).Run() /usr/local/go/src/testing/testing.go:878 +0x659 github.com/tendermint/tendermint/rpc/client_test.TestTxEventsSentWithBroadcastTxSync() /go/src/github.com/tendermint/tendermint/rpc/client/event_test.go:119 +0x186 testing.tRunner() /usr/local/go/src/testing/testing.go:827 +0x162 ================== ``` lite client works (tested manually) godoc comments httpclient: do not close the out channel use TimeoutBroadcastTxCommit no timeout for unsubscribe but 1s Local (5s HTTP) timeout for resubscribe format code change Subscribe#out cap to 1 and replace config vars with RPCConfig TimeoutBroadcastTxCommit can't be greater than rpcserver.WriteTimeout rpc: Context as first parameter to all functions reformat code fixes after my own review fixes after Ethan's review add test stubs fix config.toml * fixes after manual testing - rpc: do not recommend to use BroadcastTxCommit because it's slow and wastes Tendermint resources (pubsub) - rpc: better error in Subscribe and BroadcastTxCommit - HTTPClient: do not resubscribe if err = ErrAlreadySubscribed * fixes after Ismail's review * Update rpc/grpc/grpc_test.go Co-Authored-By: melekes <anton.kalyaev@gmail.com>
6 years ago
  1. package core
  2. import (
  3. "fmt"
  4. "strings"
  5. "github.com/tendermint/tendermint/p2p"
  6. ctypes "github.com/tendermint/tendermint/rpc/core/types"
  7. rpctypes "github.com/tendermint/tendermint/rpc/jsonrpc/types"
  8. )
  9. // NetInfo returns network info.
  10. // More: https://docs.tendermint.com/master/rpc/#/Info/net_info
  11. func NetInfo(ctx *rpctypes.Context) (*ctypes.ResultNetInfo, error) {
  12. peersList := env.P2PPeers.Peers().List()
  13. peers := make([]ctypes.Peer, 0, len(peersList))
  14. for _, peer := range peersList {
  15. peers = append(peers, ctypes.Peer{
  16. NodeInfo: peer.NodeInfo(),
  17. IsOutbound: peer.IsOutbound(),
  18. ConnectionStatus: peer.Status(),
  19. RemoteIP: peer.RemoteIP().String(),
  20. })
  21. }
  22. // TODO: Should we include PersistentPeers and Seeds in here?
  23. // PRO: useful info
  24. // CON: privacy
  25. return &ctypes.ResultNetInfo{
  26. Listening: env.P2PTransport.IsListening(),
  27. Listeners: env.P2PTransport.Listeners(),
  28. NPeers: len(peers),
  29. Peers: peers,
  30. }, nil
  31. }
  32. // UnsafeDialSeeds dials the given seeds (comma-separated id@IP:PORT).
  33. func UnsafeDialSeeds(ctx *rpctypes.Context, seeds []string) (*ctypes.ResultDialSeeds, error) {
  34. if len(seeds) == 0 {
  35. return &ctypes.ResultDialSeeds{}, fmt.Errorf("%w: no seeds provided", ctypes.ErrInvalidRequest)
  36. }
  37. env.Logger.Info("DialSeeds", "seeds", seeds)
  38. if err := env.P2PPeers.DialPeersAsync(seeds); err != nil {
  39. return &ctypes.ResultDialSeeds{}, err
  40. }
  41. return &ctypes.ResultDialSeeds{Log: "Dialing seeds in progress. See /net_info for details"}, nil
  42. }
  43. // UnsafeDialPeers dials the given peers (comma-separated id@IP:PORT),
  44. // optionally making them persistent.
  45. func UnsafeDialPeers(ctx *rpctypes.Context, peers []string, persistent, unconditional, private bool) (
  46. *ctypes.ResultDialPeers, error) {
  47. if len(peers) == 0 {
  48. return &ctypes.ResultDialPeers{}, fmt.Errorf("%w: no peers provided", ctypes.ErrInvalidRequest)
  49. }
  50. ids, err := getIDs(peers)
  51. if err != nil {
  52. return &ctypes.ResultDialPeers{}, err
  53. }
  54. env.Logger.Info("DialPeers", "peers", peers, "persistent",
  55. persistent, "unconditional", unconditional, "private", private)
  56. if persistent {
  57. if err := env.P2PPeers.AddPersistentPeers(peers); err != nil {
  58. return &ctypes.ResultDialPeers{}, err
  59. }
  60. }
  61. if private {
  62. if err := env.P2PPeers.AddPrivatePeerIDs(ids); err != nil {
  63. return &ctypes.ResultDialPeers{}, err
  64. }
  65. }
  66. if unconditional {
  67. if err := env.P2PPeers.AddUnconditionalPeerIDs(ids); err != nil {
  68. return &ctypes.ResultDialPeers{}, err
  69. }
  70. }
  71. if err := env.P2PPeers.DialPeersAsync(peers); err != nil {
  72. return &ctypes.ResultDialPeers{}, err
  73. }
  74. return &ctypes.ResultDialPeers{Log: "Dialing peers in progress. See /net_info for details"}, nil
  75. }
  76. // Genesis returns genesis file.
  77. // More: https://docs.tendermint.com/master/rpc/#/Info/genesis
  78. func Genesis(ctx *rpctypes.Context) (*ctypes.ResultGenesis, error) {
  79. return &ctypes.ResultGenesis{Genesis: env.GenDoc}, nil
  80. }
  81. func getIDs(peers []string) ([]string, error) {
  82. ids := make([]string, 0, len(peers))
  83. for _, peer := range peers {
  84. spl := strings.Split(peer, "@")
  85. if len(spl) != 2 {
  86. return nil, p2p.ErrNetAddressNoID{Addr: peer}
  87. }
  88. ids = append(ids, spl[0])
  89. }
  90. return ids, nil
  91. }