Create temporary configuration file per SSH connection

go.mod

@@ -10,7 +10,7 @@ require (
 	github.com/gliderlabs/ssh v0.2.2
 	github.com/mattn/go-isatty v0.0.12
 	gitlab.com/tslocum/cbind v0.1.1
-	gitlab.com/tslocum/cview v1.4.4-0.20200213233906-2a8ba3160c01
-	golang.org/x/crypto v0.0.0-20200210222208-86ce3cb69678
+	gitlab.com/tslocum/cview v1.4.4-0.20200216181307-c6599f4ee261
+	golang.org/x/crypto v0.0.0-20200214034016-1d94cc7ab1c6
 	gopkg.in/yaml.v2 v2.2.8
 )

go.sum

@@ -23,11 +23,11 @@ github.com/rivo/uniseg v0.1.0 h1:+2KBaVoUmb9XzDsrx/Ct0W/EYOSFf/nWTauy++DprtY=
 github.com/rivo/uniseg v0.1.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
 gitlab.com/tslocum/cbind v0.1.1 h1:JXXtxMWHgWLvoF+QkrvcNvOQ59juy7OE1RhT7hZfdt0=
 gitlab.com/tslocum/cbind v0.1.1/go.mod h1:rX7vkl0pUSg/yy427MmD1FZAf99S7WwpUlxF/qTpPqk=
-gitlab.com/tslocum/cview v1.4.4-0.20200213233906-2a8ba3160c01 h1:YdNvWO1OoGnmtjdAx84+3MWW1DAANWV8WLN9ZXE7PZc=
-gitlab.com/tslocum/cview v1.4.4-0.20200213233906-2a8ba3160c01/go.mod h1:+bEf1cg6IoWvL16YHJAKwGGpQf5s/nxXAA7YJr+WOHE=
+gitlab.com/tslocum/cview v1.4.4-0.20200216181307-c6599f4ee261 h1:5EAh+iLkvHBBR+jUWCRZEvOLiMCRAxvWvrA31wDTSN8=
+gitlab.com/tslocum/cview v1.4.4-0.20200216181307-c6599f4ee261/go.mod h1:+bEf1cg6IoWvL16YHJAKwGGpQf5s/nxXAA7YJr+WOHE=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
-golang.org/x/crypto v0.0.0-20200210222208-86ce3cb69678 h1:wCWoJcFExDgyYx2m2hpHgwz8W3+FPdfldvIgzqDIhyg=
-golang.org/x/crypto v0.0.0-20200210222208-86ce3cb69678/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
+golang.org/x/crypto v0.0.0-20200214034016-1d94cc7ab1c6 h1:Sy5bstxEqwwbYs6n0/pBuxKENqOeZUgD45Gp3Q3pqLg=
+golang.org/x/crypto v0.0.0-20200214034016-1d94cc7ab1c6/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=

goreleaser.yml

@@ -17,6 +17,7 @@ builds:
     goarch:
       - 386
       - amd64
+      - arm64
   -
     id: netris-server
     binary: netris-server
@@ -31,6 +32,7 @@ builds:
     goarch:
       - 386
       - amd64
+      - arm64
 archives:
   -
     id: netris

pkg/game/ssh/server.go

@@ -6,10 +6,12 @@ import (
 	"context"
 	"fmt"
 	"io"
+	"io/ioutil"
 	"log"
 	"os"
 	"os/exec"
 	"path"
+	"path/filepath"
 	"syscall"
 	"time"
 	"unsafe"
@@ -59,10 +61,16 @@ func (s *SSHServer) Host(newPlayers chan<- *game.IncomingPlayer) {
 				return
 			}
 
+			configPath, err := createTemporaryConfig()
+			if err != nil {
+				log.Printf("warning: failed to create temporary configuration file: %s", err)
+				return
+			}
+
 			cmdCtx, cancelCmd := context.WithCancel(sshSession.Context())
 			defer cancelCmd()
 
-			cmd := exec.CommandContext(cmdCtx, s.NetrisBinary, "--nick", game.Nickname(sshSession.User()), "--server", s.NetrisAddress)
+			cmd := exec.CommandContext(cmdCtx, s.NetrisBinary, "--nick", game.Nickname(sshSession.User()), "--server", s.NetrisAddress, "--config", configPath)
 
 			cmd.Env = append(sshSession.Environ(), fmt.Sprintf("TERM=%s", ptyReq.Term))
 
@@ -88,6 +96,7 @@ func (s *SSHServer) Host(newPlayers chan<- *game.IncomingPlayer) {
 
 			f.Close()
 			cmd.Wait()
+			os.Remove(configPath)
 		},
 		PtyCallback: func(ctx ssh.Context, pty ssh.Pty) bool {
 			// TODO: Compare public key
@@ -121,3 +130,16 @@ func (s *SSHServer) Host(newPlayers chan<- *game.IncomingPlayer) {
 func (s *SSHServer) Shutdown(reason string) {
 	server.Close()
 }
+
+// Eventually this will load and save configuration based on public key hash.
+func createTemporaryConfig() (string, error) {
+	f, err := ioutil.TempFile("", "netris-config-*.yaml")
+	if err != nil {
+		return "", err
+	}
+
+	log.Println(f.Stat())
+
+	f.Close()
+	return filepath.Clean(f.Name()), err
+}