refactor(web): move all server files into server directory

web/server/tdbms-client.go

@@ -0,0 +1,49 @@
+package main
+
+import (
+	"bytes"
+	"net"
+)
+
+// TDBMS connection struct
+type TDBMSConnection struct {
+	conn net.Conn
+}
+
+// Connect to TDBMS server
+func (tdbms *TDBMSConnection) Connect(domain, addr string) error {
+	c, err := net.Dial(domain, addr)
+	tdbms.conn = c
+	return err
+}
+
+// Close connection to TDBMS server
+func (tdbms *TDBMSConnection) Close() error {
+	return tdbms.conn.Close()
+}
+
+// Execute a TDB request
+func (tdbms *TDBMSConnection) Query(db_name string, trc uint8, request_body string) []byte {
+	var err error
+	buffer := []byte{trc}
+	buffer = append(buffer, db_name...)
+	buffer = append(buffer, 0)
+	buffer = append(buffer, request_body...)
+	buffer = append(buffer, 0, 4)
+	_, err = tdbms.conn.Write(buffer)
+	if err != nil {
+		return nil
+	}
+	var response []byte
+	var resp_size int = -1
+	buffer = make([]byte, 8192)
+	for resp_size <= 0 {
+		_, err = tdbms.conn.Read(buffer)
+		if err != nil {
+			return nil
+		}
+		response = append(response, buffer...)
+		resp_size = bytes.IndexByte(response, 4)
+	}
+	return response[:resp_size-1]
+}