func (this *DataServer) createNewSession(resp *Response, req *http.Request) (err error) {
userid := req.FormValue(USER_ID_FORM_KEY)
gameid := req.FormValue(APPLICATION_ID_FORM_KEY)
userTbl := this.database.GetTable(USERS_TABLE_NAME)
if userTbl == nil {
resp.AddValueToKey("message", "Server Error.")
err = errors.New("Users table doesn't exist.")
return
}
hasKey, dbErr := userTbl.HasPrimaryKey(userid)
if !hasKey || dbErr.Exists() {
resp.AddValueToKey("message", "Failed to create session: Invalid userid.")
err = errors.New(dbErr.Error())
return
}
appTbl := this.database.GetTable(APPLICATIONS_TABLE_NAME)
if appTbl == nil {
resp.AddValueToKey("message", "Server Error.")
err = errors.New("Application table doesn't exist.")
return
}
hasKey, err = appTbl.HasPrimaryKey(gameid)
if !hasKey || err != nil {
resp.AddValueToKey("message", "Failed to create session: Invalid game_id.")
return
}
sessionTbl := this.database.GetTable(SESSIONS_TABLE_NAME)
if sessionTbl == nil {
resp.AddValueToKey("message", "Server Error.")
err = errors.New("Sessions table doesn't exist.")
return
}
sessionid := GenerateGUID(userid, gameid, time.Now().String())[:32]
colVals := sessionTbl.GetColumnMap()
colVals.Update("guid", sessionid)
colVals.Update("application_id", gameid)
colVals.Update("user_id", userid)
colVals.Update("start_time", mysqldb.CurrentTime())
colVals.Update("end_time", mysqldb.CurrentTimePlus(time.Minute*5))
dbErr = sessionTbl.Insert(colVals)
if dbErr.Exists() {
resp.AddValueToKey("message", "Failed to create session: Database Error.")
err = errors.New(dbErr.Error())
return
}
resp.AddValueToKey("message", fmt.Sprintf("Logging in as %v in game %v, session_id=%v", userid, gameid, sessionid))
return
}
func (this *DataServer) ServeHTTP(w http.ResponseWriter, req *http.Request) {
var err error = nil
eventType := req.FormValue(REQUEST_TYPE_FORM_KEY)
resp := MakeResponse()
switch eventType {
case CREATE_USER_REQ:
err = this.handleNewUser(resp, req)
case NEW_SESSION_REQ:
err = this.handleNewSession(resp, req)
case REFRESH_SESSION_REQ:
err = this.handleRefreshSession(resp, req)
case REGISTER_APPLICATION_REQ:
err = this.handleRegisterApplication(resp, req)
case REGISTER_EVENT_REQ:
err = this.handleRegisterEvent(resp, req)
default:
err = this.handleEventCall(eventType, resp, req)
}
argsStr := "{"
if req.Form != nil {
for k, v := range req.Form {
argsStr += fmt.Sprintf("%v=%v,", k, v)
}
argsStr = strings.TrimSuffix(argsStr, ",")
}
argsStr += "}"
log := fmt.Sprintf("Request: %v\r\n%v", req.URL, argsStr)
log += "\r\nErrors: "
if err != nil {
log += err.Error()
}
log += "\r\nResponse: " + resp.String()
dateStr := mysqldb.CurrentTime()
fileName := this.LogRoot() + dateStr + "_RequestLog.txt"
fileName = strings.Replace(fileName, ":", "-", -1)
err = ioutil.WriteFile(fileName, []byte(log), os.ModePerm)
if err != nil {
fmt.Println("Could not write to request log: ", err.Error(), "\r\n", fileName)
}
w.Write([]byte(resp.String()))
}
func New(jsonDB *mysqldb.JSONDB, config DataServerConfig) (server *DataServer, err error) {
server = new(DataServer)
server.config = config
fmt.Println("Loading default database.")
conn, myErr := mysqldb.NewConnection(config.MySQLUsername, config.MySQLPassword)
if myErr.Exists() {
fmt.Println(myErr.Error())
return
}
server.database = conn.NewDatabaseFromJSON(jsonDB)
conn.UseDatabase(server.database)
evtTbl := server.database.GetTable(EVENTS_TABLE_NAME)
if evtTbl == nil {
fmt.Println("Events table does not exist.")
return
}
fmt.Println("Loading event tables.")
dbErr := evtTbl.SelectAll(func(rows *sql.Rows) (stop bool) {
stop = false
eventName := ""
tableName := ""
definition := ""
err = rows.Scan(&eventName, &tableName, &definition)
if err != nil {
fmt.Println(fmt.Sprintf("Error reading row. Extracted { event_name=%v, table_name=%v, definition=%v }", eventName, tableName, definition))
return
}
jTbl, serr := server.CreateTableFromEventDefinition(definition)
if serr != nil {
err = serr
fmt.Println(err.Error())
stop = true
return
}
server.database.NewTableFromJSON(jTbl)
fmt.Println("Added Event Table: ", jTbl.KeyName)
return
})
if dbErr.Exists() {
fmt.Println("Couldn't select from event table: ", dbErr.Error())
return
}
http.Handle("/", server)
fmt.Println("Creating Startup Log")
log := "Start Up\r\n"
dateStr := mysqldb.CurrentTime()
fileName := server.LogRoot() + dateStr + "_StartupLog.txt"
fileName = strings.Replace(fileName, ":", "-", -1)
err = ioutil.WriteFile(fileName, []byte(log), os.ModePerm)
if err != nil {
fmt.Println("Could not write to startup log: ", err.Error(), "\r\n", fileName)
}
fmt.Println("Starting Server")
err = http.ListenAndServe(server.config.PortNumber, nil)
if err != nil {
fmt.Println("Failed to start server: ", err.Error())
}
fmt.Println("Stopping Server")
return
}