Implement first-class Nethernet support

.gitignore

@@ -7,3 +7,7 @@
 /world/
 /players/
 /resources/
+
+# NetherNet server identity key
+identity.pem
+nethernet_identity.pem

config.toml

@@ -3,6 +3,19 @@
   # The address of the server, including the port. The server will be listening on this address. If another
   # server is already running on this port, please select a different port.
   Address = ":19132"
+  # Transport controls which network transports are listened on. Valid values are raknet, nethernet and both.
+  Transport = "raknet"
+
+  [Network.NetherNet]
+    # Address is the TCP address used for NetherNet HTTP signaling. If empty, Network.Address is used.
+    # The listener serves plaintext HTTP. Terminate HTTPS with a reverse proxy such as Caddy or nginx.
+    Address = ""
+    # KeyFile is the path to the PEM file containing the P-384 ECDSA private key used to identify
+    # this listener when clients connect over plain HTTP. If the file does not exist, a new key is
+    # generated and saved there. If empty, a temporary key is generated and not saved.
+    KeyFile = "nethernet_identity.pem"
+    # Domain is the domain that may be displayed to players connecting over plain HTTP.
+    Domain = "self"
 
 [Server]
   # The name as it shows up in the server list. Minecraft colour codes may be used in this name to format the

go.mod

@@ -5,30 +5,52 @@ go 1.26.0
 require (
 	github.com/brentp/intintmap v0.0.0-20251106190759-56907b1f8479
 	github.com/cespare/xxhash/v2 v2.3.0
+	github.com/df-mc/go-nethernet v1.0.18
 	github.com/df-mc/goleveldb v1.1.9
 	github.com/df-mc/worldupgrader v1.0.21
 	github.com/go-gl/mathgl v1.2.0
 	github.com/google/uuid v1.6.0
 	github.com/pelletier/go-toml v1.9.5
-	github.com/sandertv/gophertunnel v1.57.0
+	github.com/sandertv/gophertunnel v1.57.1
 	github.com/segmentio/fasthash v1.0.3
 	golang.org/x/exp v0.0.0-20250103183323-7d7fa50e5329
-	golang.org/x/mod v0.22.0
-	golang.org/x/text v0.23.0
-	golang.org/x/tools v0.28.0
+	golang.org/x/mod v0.32.0
+	golang.org/x/text v0.34.0
+	golang.org/x/tools v0.41.0
 )
 
 require (
 	github.com/coreos/go-oidc/v3 v3.17.0 // indirect
 	github.com/df-mc/go-playfab v1.0.0 // indirect
 	github.com/df-mc/go-xsapi v1.0.1 // indirect
 	github.com/df-mc/jsonc v1.0.5 // indirect
-	github.com/go-jose/go-jose/v4 v4.1.3 // indirect
+	github.com/go-jose/go-jose/v4 v4.1.4 // indirect
 	github.com/golang/snappy v0.0.4 // indirect
 	github.com/klauspost/compress v1.18.4 // indirect
+	github.com/nxadm/tail v1.4.11 // indirect
+	github.com/pion/datachannel v1.6.2 // indirect
+	github.com/pion/dtls/v3 v3.1.4 // indirect
+	github.com/pion/ice/v4 v4.2.7 // indirect
+	github.com/pion/interceptor v0.1.45 // indirect
+	github.com/pion/logging v0.2.4 // indirect
+	github.com/pion/mdns/v2 v2.1.0 // indirect
+	github.com/pion/randutil v0.1.0 // indirect
+	github.com/pion/rtcp v1.2.16 // indirect
+	github.com/pion/rtp v1.10.2 // indirect
+	github.com/pion/sctp v1.10.2 // indirect
+	github.com/pion/sdp/v3 v3.0.19 // indirect
+	github.com/pion/srtp/v3 v3.0.12 // indirect
+	github.com/pion/stun/v3 v3.1.6 // indirect
+	github.com/pion/transport/v4 v4.0.2 // indirect
+	github.com/pion/turn/v5 v5.0.10 // indirect
+	github.com/pion/webrtc/v4 v4.2.16-0.20260627075746-7a223a6f4d4f // indirect
 	github.com/sandertv/go-raknet v1.15.1-0.20260112202637-beca0b10c217 // indirect
-	golang.org/x/net v0.38.0 // indirect
+	github.com/wlynxg/anet v0.0.5 // indirect
+	golang.org/x/crypto v0.48.0 // indirect
+	golang.org/x/net v0.50.0 // indirect
 	golang.org/x/oauth2 v0.28.0 // indirect
-	golang.org/x/sync v0.12.0 // indirect
+	golang.org/x/sync v0.19.0 // indirect
+	golang.org/x/sys v0.41.0 // indirect
+	golang.org/x/time v0.14.0 // indirect
 	gopkg.in/yaml.v2 v2.3.0 // indirect
 )

go.sum

@@ -4,6 +4,10 @@ github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UF
 github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/coreos/go-oidc/v3 v3.17.0 h1:hWBGaQfbi0iVviX4ibC7bk8OKT5qNr4klBaCHVNvehc=
 github.com/coreos/go-oidc/v3 v3.17.0/go.mod h1:wqPbKFrVnE90vty060SB40FCJ8fTHTxSwyXJqZH+sI8=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/df-mc/go-nethernet v1.0.18 h1:SSlGPhweIux3c9PKhkmyxbMtBc/V2+b9+cJYdyqxbAo=
+github.com/df-mc/go-nethernet v1.0.18/go.mod h1:11MfQo5F7PDKfHg1H0zM5mMkrCv29jRE0lK5B4egW9w=
 github.com/df-mc/go-playfab v1.0.0 h1:6gVukk3aQbJ934GJFdcZJHVIw9lhauK+KHOevbwJA10=
 github.com/df-mc/go-playfab v1.0.0/go.mod h1:nGOlE+JFGOH5Z0iidEgJapHhndFi/oNk17RN9pKCF+k=
 github.com/df-mc/go-xsapi v1.0.1 h1:H1SbxYr4rXOqZSB8MwiODbDUsHRihxbHf+YOljUWgXw=
@@ -15,10 +19,12 @@ github.com/df-mc/jsonc v1.0.5/go.mod h1:+Q++JuCE9IKiP8v7sWImdf/RjQX0nfXyfX6PdfTT
 github.com/df-mc/worldupgrader v1.0.21 h1:Qr4/QB8ek7En0vkTuRXYq4FrZM0HHSOXsJOL7Ko4Cjg=
 github.com/df-mc/worldupgrader v1.0.21/go.mod h1:tsSOLTRm9mpG7VHvYpAjjZrkRHWmSbKZAm9bOLNnlDk=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
+github.com/fsnotify/fsnotify v1.6.0 h1:n+5WquG0fcWoWp6xPWfHdbskMCQaFnG6PfBrh1Ky4HY=
+github.com/fsnotify/fsnotify v1.6.0/go.mod h1:sl3t1tCWJFWoRz9R8WJCbQihKKwmorjAbSClcnxKAGw=
 github.com/go-gl/mathgl v1.2.0 h1:v2eOj/y1B2afDxF6URV1qCYmo1KW08lAMtTbOn3KXCY=
 github.com/go-gl/mathgl v1.2.0/go.mod h1:pf9+b5J3LFP7iZ4XXaVzZrCle0Q/vNpB/vDe5+3ulRE=
-github.com/go-jose/go-jose/v4 v4.1.3 h1:CVLmWDhDVRa6Mi/IgCgaopNosCaHz7zrMeF9MlZRkrs=
-github.com/go-jose/go-jose/v4 v4.1.3/go.mod h1:x4oUasVrzR7071A4TnHLGSPpNOm2a21K9Kf04k1rs08=
+github.com/go-jose/go-jose/v4 v4.1.4 h1:moDMcTHmvE6Groj34emNPLs/qtYXRVcd6S7NHbHz3kA=
+github.com/go-jose/go-jose/v4 v4.1.4/go.mod h1:x4oUasVrzR7071A4TnHLGSPpNOm2a21K9Kf04k1rs08=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/snappy v0.0.1/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
 github.com/golang/snappy v0.0.4 h1:yAGX7huGHXlcLOEtBnF4w7FQwA26wojNCwOYAEhLjQM=
@@ -27,49 +33,100 @@ github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
 github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
-github.com/hpcloud/tail v1.0.0 h1:nfCOvKYfkgYP8hkirhJocXT2+zOD8yUNjXaWfTlyFKI=
 github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
 github.com/klauspost/compress v1.13.6/go.mod h1:/3/Vjq9QcHkK5uEr5lBEmyoZ1iFhe47etQ6QUkpK6sk=
 github.com/klauspost/compress v1.18.4 h1:RPhnKRAQ4Fh8zU2FY/6ZFDwTVTxgJ/EMydqSTzE9a2c=
 github.com/klauspost/compress v1.18.4/go.mod h1:R0h/fSBs8DE4ENlcrlib3PsXS61voFxhIs2DeRhCvJ4=
+github.com/nxadm/tail v1.4.11 h1:8feyoE3OzPrcshW5/MJ4sGESc5cqmGkGCWlco4l0bqY=
+github.com/nxadm/tail v1.4.11/go.mod h1:OTaG3NK980DZzxbRq6lEuzgU+mug70nY11sMd4JXXHc=
 github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
-github.com/onsi/ginkgo v1.7.0 h1:WSHQ+IS43OoUrWtD1/bbclrwK8TTH5hzp+umCiuxHgs=
 github.com/onsi/ginkgo v1.7.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
-github.com/onsi/gomega v1.4.3 h1:RE1xgDvH7imwFD45h+u2SgIfERHlS2yNG4DObb5BSKU=
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 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.12.0 h1:MHc5BpPuC30uJk597Ri8TV3CNZcTLu6B6z4lJy+g6Jw=
-golang.org/x/sync v0.12.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
+golang.org/x/sync v0.19.0 h1:vV+1eWNmZ5geRlYjzm2adRgW2/mcpevXNg50YZtPCE4=
+golang.org/x/sync v0.19.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
 golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.31.0 h1:ioabZlmFYtWhL+TRYpcnNlLwhyxaM9kWTDEmfnprqik=
-golang.org/x/sys v0.31.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
+golang.org/x/sys v0.0.0-20220908164124-27713097b956/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.41.0 h1:Ivj+2Cp/ylzLiEU89QhWblYnOE9zerudt9Ftecq2C6k=
+golang.org/x/sys v0.41.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/term v0.40.0 h1:36e4zGLqU4yhjlmxEaagx2KuYbJq3EwY8K943ZsHcvg=
+golang.org/x/term v0.40.0/go.mod h1:w2P8uVp06p2iyKKuvXIm7N/y0UCRt3UfJTfZ7oOpglM=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/text v0.23.0 h1:D71I7dUrlY+VX0gQShAThNGHFxZ13dGLBHQLVl1mJlY=
-golang.org/x/text v0.23.0/go.mod h1:/BLNzu4aZCJ1+kcD0DNRotWKage4q2rGVAg4o22unh4=
-golang.org/x/tools v0.28.0 h1:WuB6qZ4RPCQo5aP3WdKZS7i595EdWqWR8vqJTlwTVK8=
-golang.org/x/tools v0.28.0/go.mod h1:dcIOrVd3mfQKTgrDVQHqCPMWy6lnhfhtX3hLXYVLfRw=
+golang.org/x/text v0.34.0 h1:oL/Qq0Kdaqxa1KbNeMKwQq0reLCCaFtqu2eNuSeNHbk=
+golang.org/x/text v0.34.0/go.mod h1:homfLqTYRFyVYemLBFl5GgL/DWEiH5wcsQ5gSh1yziA=
+golang.org/x/time v0.14.0 h1:MRx4UaLrDotUKUdCIqzPC48t1Y9hANFKIRpNx+Te8PI=
+golang.org/x/time v0.14.0/go.mod h1:eL/Oa2bBBK0TkX57Fyni+NgnyQQN4LitPmob2Hjnqw4=
+golang.org/x/tools v0.41.0 h1:a9b8iMweWG+S0OBnlU36rzLp20z1Rp10w+IY2czHTQc=
+golang.org/x/tools v0.41.0/go.mod h1:XSY6eDqxVNiYgezAVqqCeihT4j1U2CCsqvH3WhQpnlg=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/fsnotify.v1 v1.4.7 h1:xOHLXZwVvI9hhs+cLKq5+I5onOuwQLhQwiu63xxlHs4=
 gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.3.0 h1:clyUAQHOM3G0M3f5vQj7LuJrETvjVot3Z5el9nffUtU=
 gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

server/conf.go

@@ -6,6 +6,7 @@ import (
 	"os"
 	"path/filepath"
 	"slices"
+	"strings"
 	"time"
 	_ "unsafe"
 
@@ -191,6 +192,7 @@ func (conf Config) New() *Server {
 		l, err := lf(conf)
 		if err != nil {
 			conf.Log.Error("create listener: " + err.Error())
+			continue
 		}
 		srv.listeners = append(srv.listeners, l)
 	}
@@ -215,6 +217,23 @@ type UserConfig struct {
 		// Address is the address on which the server should listen. Players may
 		// connect to this address in order to join.
 		Address string
+		// Transport controls which network transports are listened on. Valid values
+		// are "raknet", "nethernet" and "both". If empty, "raknet" is used.
+		Transport string
+		// NetherNet holds settings for the NetherNet HTTP signaling listener.
+		NetherNet struct {
+			// Address is the TCP address used for NetherNet HTTP signaling. If empty,
+			// Network.Address is used. The listener serves plaintext HTTP; HTTPS
+			// should be terminated by a reverse proxy.
+			Address string
+			// KeyFile is the path to the PEM file containing the P-384 ECDSA private
+			// key used to identify this listener when clients connect over plain HTTP.
+			// If the file does not exist, a new key is generated and saved there. If
+			// empty, a temporary key is generated and not saved.
+			KeyFile string
+			// Domain is the domain that may be displayed to players connecting over plain HTTP.
+			Domain string
+		}
 	}
 	Server struct {
 		// Name is the name of the server as it shows up in the server list.
@@ -285,6 +304,10 @@ func (uc UserConfig) Config(log *slog.Logger) (Config, error) {
 		MaxChunkRadius:          uc.Players.MaximumChunkRadius,
 		DisableResourceBuilding: !uc.Resources.AutoBuildPack,
 	}
+	transport, err := parseNetworkTransport(uc.Network.Transport)
+	if err != nil {
+		return conf, err
+	}
 	if !uc.Server.DisableJoinQuitMessages {
 		conf.JoinMessage, conf.QuitMessage = chat.MessageJoin, chat.MessageQuit
 	}
@@ -304,10 +327,32 @@ func (uc UserConfig) Config(log *slog.Logger) (Config, error) {
 			return conf, fmt.Errorf("create player provider: %w", err)
 		}
 	}
-	conf.Listeners = append(conf.Listeners, uc.listenerFunc)
+	if transport.raknet {
+		conf.Listeners = append(conf.Listeners, uc.listenerFunc)
+	}
+	if transport.nethernet {
+		conf.Listeners = append(conf.Listeners, uc.netherNetListenerFunc)
+	}
 	return conf, nil
 }
 
+type networkTransport struct {
+	raknet, nethernet bool
+}
+
+func parseNetworkTransport(s string) (networkTransport, error) {
+	switch strings.ToLower(strings.TrimSpace(s)) {
+	case "", "raknet":
+		return networkTransport{raknet: true}, nil
+	case "nethernet":
+		return networkTransport{nethernet: true}, nil
+	case "both":
+		return networkTransport{raknet: true, nethernet: true}, nil
+	default:
+		return networkTransport{}, fmt.Errorf("unknown network transport %q", s)
+	}
+}
+
 // loadResources loads all resource packs found in a directory passed.
 func loadResources(dir string) ([]*resource.Pack, error) {
 	_ = os.MkdirAll(dir, 0777)
@@ -345,6 +390,8 @@ func loadGenerator(dim world.Dimension) world.Generator {
 func DefaultConfig() UserConfig {
 	c := UserConfig{}
 	c.Network.Address = ":19132"
+	c.Network.Transport = "raknet"
+	c.Network.NetherNet.KeyFile, c.Network.NetherNet.Domain = "nethernet_identity.pem", "self"
 	c.Server.Name = "Dragonfly Server"
 	c.Server.AuthEnabled = true
 	c.World.SaveData = true