From b1b2396578a0443d2a7c8ab1bac9068c7f0c1786 Mon Sep 17 00:00:00 2001 From: vilmibm Date: Thu, 7 Jul 2022 17:07:03 -0500 Subject: [PATCH] protobuff based server started --- go.mod | 13 +++++ go.sum | 128 +++++++++++++++++++++++++++++++++++++++++ proto/hermeticum.proto | 75 ++++++++++++++++++++++++ server/cmd/main.go | 85 +++++++++++++++++++++++++++ server/main.go | 52 ----------------- 5 files changed, 301 insertions(+), 52 deletions(-) create mode 100644 go.sum create mode 100644 proto/hermeticum.proto create mode 100644 server/cmd/main.go delete mode 100644 server/main.go diff --git a/go.mod b/go.mod index de83f84..02d66e8 100644 --- a/go.mod +++ b/go.mod @@ -1,3 +1,16 @@ module github.com/vilmibm/hermeticum go 1.18 + +require ( + google.golang.org/grpc v1.47.0 + google.golang.org/protobuf v1.28.0 +) + +require ( + github.com/golang/protobuf v1.5.2 // indirect + golang.org/x/net v0.0.0-20201021035429-f5854403a974 // indirect + golang.org/x/sys v0.0.0-20210119212857-b64e53b001e4 // indirect + golang.org/x/text v0.3.3 // indirect + google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013 // indirect +) diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..1ea744b --- /dev/null +++ b/go.sum @@ -0,0 +1,128 @@ +cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= +github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY= +github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU= +github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs= +github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw= +github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc= +github.com/cncf/udpa/go v0.0.0-20201120205902-5459f2c99403/go.mod h1:WmhPx2Nbnhtbo57+VJT5O0JRkEi1Wbu0z5j0R8u5Hbk= +github.com/cncf/udpa/go v0.0.0-20210930031921-04548b0d99d4/go.mod h1:6pvJx4me5XPnfI9Z40ddWsdw2W/uZgQLFXToKeRcDiI= +github.com/cncf/xds/go v0.0.0-20210922020428-25de7278fc84/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs= +github.com/cncf/xds/go v0.0.0-20211001041855-01bcc9b48dfe/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs= +github.com/cncf/xds/go v0.0.0-20211011173535-cb28da3451f1/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs= +github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4= +github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4= +github.com/envoyproxy/go-control-plane v0.9.4/go.mod 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h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= +gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= +honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= +honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= diff --git a/proto/hermeticum.proto b/proto/hermeticum.proto new file mode 100644 index 0000000..36d52d7 --- /dev/null +++ b/proto/hermeticum.proto @@ -0,0 +1,75 @@ +syntax = "proto3"; + +option go_package = "github.com/vilmibm/hermeticum/proto"; + +package proto; + +/* + +In the existing code, there are a few classes of messages that get sent to the user: + +- ACK of a meta operation (login, register, ping) +- ACK of a command (this is kind of useless, imo) +- Refresh to an object's state (used when editing objects) +- Refresh to the room state +- Message to print + +these are mostly recreated below with the TODO of deciding on revision/object stuff (which I wasn't thrilled with in the alpha) + +*/ + +service GameWorld { + rpc Register(AuthInfo) returns (SessionInfo); + rpc Login(AuthInfo) returns (SessionInfo); + rpc Commands(stream Command) returns (stream CommandAck); + rpc State(SessionInfo) returns (stream StateUpdate); + rpc Messages(SessionInfo) returns (stream ClientMessage); + rpc Map(SessionInfo) returns (MapData); + rpc Ping(SessionInfo) returns (Pong); + // TODO decide on how revisions / object editing in general should work +} + +message AuthInfo { + string username = 1; + string password = 2; +} + +message SessionInfo { + string sessionID = 1; +} + +message StateUpdate { + // TODO +} + +message Command { + string sessionInfo = 1; + string verb = 2; + string rest = 3; +} + +message CommandAck { + bool acked = 1; + string errorMsg = 2; +} + +message ClientMessage { + enum ClientMessageType { + WHISPER = 0; // someone or something sent a private message to user + OVERHEARD = 1; // someone or something in the same room said something out loud + EMOTE = 2; // someone or something in the same room performed an action + GENERIC = 3; // just a string that should be printed (ie, "you hear noises in a nearby room") + GLOBAL = 4; // the system sent out a PSA + } + + ClientMessageType cmt = 1; + optional string speaker = 2; +} + +message MapData { + string mapData = 1; +} + +message Pong { + string when = 1; // timestamp of pong creation +} diff --git a/server/cmd/main.go b/server/cmd/main.go new file mode 100644 index 0000000..84b7d20 --- /dev/null +++ b/server/cmd/main.go @@ -0,0 +1,85 @@ +package main + +import ( + "context" + "flag" + "fmt" + "log" + "net" + "os" + + "github.com/vilmibm/hermeticum/proto" + "google.golang.org/grpc" +) + +var ( + tls = flag.Bool("tls", false, "Connection uses TLS if true, else plain TCP") + certFile = flag.String("cert_file", "", "The TLS cert file") + keyFile = flag.String("key_file", "", "The TLS key file") + port = flag.Int("port", 6666, "The server port") +) + +func _main() (err error) { + l, err := net.Listen("tcp", fmt.Sprintf(":%d", *port)) + if err != nil { + return err + } + fmt.Printf("DBG %#v\n", l) + + var opts []grpc.ServerOption + if *tls { + log.Fatal("tls unsupported") + /* + // TODO base some stuff on the data package in the examples to get tls working + if *certFile == "" { + *certFile = data.Path("x509/server_cert.pem") + } + if *keyFile == "" { + *keyFile = data.Path("x509/server_key.pem") + } + creds, err := credentials.NewServerTLSFromFile(*certFile, *keyFile) + if err != nil { + log.Fatalf("Failed to generate credentials %v", err) + } + opts = []grpc.ServerOption{grpc.Creds(creds)} + */ + } + grpcServer := grpc.NewServer(opts...) + proto.RegisterGameWorldServer(grpcServer, newServer()) + grpcServer.Serve(l) + + return nil + +} + +type gameWorldServer struct { + proto.UnimplementedGameWorldServer +} + +func newServer() *gameWorldServer { + s := &gameWorldServer{} + return s +} + +func (s *gameWorldServer) Ping(ctx context.Context, _ *proto.SessionInfo) (*proto.Pong, error) { + pong := &proto.Pong{ + When: "TODO", + } + + return pong, nil +} + +func (s *gameWorldServer) Register(ctx context.Context, auth *proto.AuthInfo) (*proto.SessionInfo, error) { + // TODO + return nil, nil +} + +// TODO other server functions + +func main() { + err := _main() + if err != nil { + fmt.Fprintln(os.Stderr, err.Error()) + os.Exit(1) + } +} diff --git a/server/main.go b/server/main.go deleted file mode 100644 index 9c31d1d..0000000 --- a/server/main.go +++ /dev/null @@ -1,52 +0,0 @@ -package main - -import ( - "fmt" - "net" - "os" -) - -func _main() (err error) { - var listener net.Listener - listener, err = net.Listen("tcp", "127.0.0.1:6666") - if err != nil { - return - } - - defer listener.Close() - - for { - var conn net.Conn - conn, err = listener.Accept() - if err != nil { - // TODO log and continue - break - } - - go handleConnection(conn) - } - - return -} - -func handleConnection(conn net.Conn) { - // TODO create a user session - fmt.Println("HI") - - // TODO learn how to read from here -> protobuff - for { - var bs []byte - // TODO how to block here? - conn.Read(bs) - fmt.Printf("DBG %#v\n", string(bs)) - } -} - -func main() { - fmt.Println("hi lol") - err := _main() - if err != nil { - fmt.Fprintln(os.Stderr, err.Error()) - os.Exit(1) - } -}