Replace spaces with underscores in password fields

PROTOCOL.md

@@ -4,6 +4,8 @@ Connect to `bgammon.org:1337` via TCP.
 
 All commands and events are separated by newlines.
 
+When sending a password to the server, replace spaces with underscores.
+
 ## User commands
 
 ### Format
@@ -35,7 +37,7 @@ formatted responses are more easily parsed by computers.
   - List all matches.
   - Aliases: `ls`
 
-- `create <public/private> [password]`
+- `create <public>/<private [password]> [name]`
   - Create a match.
   - Aliases: `c`
 

cmd/bgammon-server/server.go

@@ -338,7 +338,7 @@ COMMANDS:
 						s.clientsLock.Unlock()
 						continue
 					}
-					password = bytes.Join(params[1:], []byte(" "))
+					password = bytes.ReplaceAll(bytes.Join(params[1:], []byte(" ")), []byte("_"), []byte(" "))
 				}
 
 				s.clientsLock.Unlock()
@@ -473,7 +473,7 @@ COMMANDS:
 					sendUsage()
 					continue
 				}
-				gamePassword = params[1]
+				gamePassword = bytes.ReplaceAll(params[1], []byte("_"), []byte(" "))
 				gameName = bytes.Join(params[2:], []byte(" "))
 			default:
 				sendUsage()
@@ -559,7 +559,8 @@ COMMANDS:
 					continue
 				}
 				if g.id == joinGameID {
-					if len(g.password) != 0 && (len(params) < 2 || !bytes.Equal(g.password, bytes.Join(params[1:], []byte(" ")))) {
+					providedPassword := bytes.ReplaceAll(bytes.Join(params[1:], []byte(" ")), []byte("_"), []byte(" "))
+					if len(g.password) != 0 && (len(params) < 2 || !bytes.Equal(g.password, providedPassword)) {
 						cmd.client.sendEvent(&bgammon.EventFailedJoin{
 							Reason: "Invalid password.",
 						})
@@ -857,7 +858,7 @@ COMMANDS:
 			clientGame.Turn = 1
 			clientGame.Roll1 = 1
 			clientGame.Roll2 = 2
-			clientGame.Board = []int{0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, 0, 0, 0}
+			clientGame.Board = []int{0, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -4, 0, 0, 0}
 
 			clientGame.eachClient(func(client *serverClient) {
 				clientGame.sendBoard(client)