Now gets ingame!

signserver/sign_server.go

@@ -0,0 +1,79 @@
+package signserver
+
+import (
+	"database/sql"
+	"fmt"
+	"io"
+	"net"
+	"sync"
+
+	"github.com/Andoryuuta/Erupe/network"
+)
+
+// Config struct allows configuring the server.
+type Config struct {
+	DB         *sql.DB
+	ListenAddr string
+}
+
+// Server is a MHF sign server.
+type Server struct {
+	sync.Mutex
+	sid        int
+	sessions   map[int]*Session
+	db         *sql.DB
+	listenAddr string
+}
+
+// NewServer creates a new Server type.
+func NewServer(config *Config) *Server {
+	s := &Server{
+		sid:        0,
+		sessions:   make(map[int]*Session),
+		db:         config.DB,
+		listenAddr: config.ListenAddr,
+	}
+	return s
+}
+
+// Listen listens for new connections and accepts/serves them.
+func (s *Server) Listen() {
+	l, err := net.Listen("tcp", s.listenAddr)
+	if err != nil {
+		panic(err)
+	}
+	defer l.Close()
+
+	for {
+		conn, err := l.Accept()
+		if err != nil {
+			panic(err)
+		}
+
+		go s.handleConnection(s.sid, conn)
+		s.sid++
+	}
+}
+
+func (s *Server) handleConnection(sid int, conn net.Conn) {
+	// Client initalizes the connection with a one-time buffer of 8 NULL bytes.
+	nullInit := make([]byte, 8)
+	_, err := io.ReadFull(conn, nullInit)
+	if err != nil {
+		fmt.Println(err)
+		conn.Close()
+		return
+	}
+
+	session := &Session{
+		server:    s,
+		rawConn:   &conn,
+		cryptConn: network.NewCryptConn(conn),
+	}
+
+	s.Lock()
+	s.sessions[sid] = session
+	s.Unlock()
+
+	session.work()
+}