// Handler beego filter handler for serve captcha image
func (c *Captcha) Handler(ctx *context.Context) {
var chars []byte
id := path.Base(ctx.Request.RequestURI)
if i := strings.Index(id, "."); i != -1 {
id = id[:i]
}
key := c.key(id)
if len(ctx.Input.Query("reload")) > 0 {
chars = c.genRandChars()
if err := c.store.Put(key, chars, c.Expiration); err != nil {
ctx.Output.SetStatus(500)
ctx.WriteString("captcha reload error")
logs.Error("Reload Create Captcha Error:", err)
return
}
} else {
if v, ok := c.store.Get(key).([]byte); ok {
chars = v
} else {
ctx.Output.SetStatus(404)
ctx.WriteString("captcha not found")
return
}
}
img := NewImage(chars, c.StdWidth, c.StdHeight)
if _, err := img.WriteTo(ctx.ResponseWriter); err != nil {
logs.Error("Write Captcha Image Error:", err)
}
}
// Reset reset all migration
// run all migration's down function
func Reset() error {
sm := sortMap(migrationMap)
i := 0
for j := len(sm) - 1; j >= 0; j-- {
v := sm[j]
if isRollBack(v.name) {
logs.Info("skip the", v.name)
time.Sleep(1 * time.Second)
continue
}
logs.Info("start reset:", v.name)
v.m.Reset()
v.m.Down()
err := v.m.Exec(v.name, "down")
if err != nil {
logs.Error("execute error:", err)
time.Sleep(2 * time.Second)
return err
}
i++
logs.Info("end reset:", v.name)
}
logs.Info("total success reset:", i, " migration")
time.Sleep(2 * time.Second)
return nil
}
// Refresh first Reset, then Upgrade
func Refresh() error {
err := Reset()
if err != nil {
logs.Error("execute error:", err)
time.Sleep(2 * time.Second)
return err
}
err = Upgrade(0)
return err
}
// Rollback rollback the migration by the name
func Rollback(name string) error {
if v, ok := migrationMap[name]; ok {
logs.Info("start rollback")
v.Reset()
v.Down()
err := v.Exec(name, "down")
if err != nil {
logs.Error("execute error:", err)
time.Sleep(2 * time.Second)
return err
}
logs.Info("end rollback")
time.Sleep(2 * time.Second)
return nil
}
logs.Error("not exist the migrationMap name:" + name)
time.Sleep(2 * time.Second)
return errors.New("not exist the migrationMap name:" + name)
}
// CreateCaptchaHTML template func for output html
func (c *Captcha) CreateCaptchaHTML() template.HTML {
value, err := c.CreateCaptcha()
if err != nil {
logs.Error("Create Captcha Error:", err)
return ""
}
// create html
return template.HTML(fmt.Sprintf(`<input type="hidden" name="%s" value="%s">`+
`<a class="captcha" href="javascript:">`+
`<img onclick="this.src=('%s%s.png?reload='+(new Date()).getTime())" class="captcha-img" src="%s%s.png">`+
`</a>`, c.FieldIDName, value, c.URLPrefix, value, c.URLPrefix, value))
}
// Upgrade upgrate the migration from lasttime
func Upgrade(lasttime int64) error {
sm := sortMap(migrationMap)
i := 0
for _, v := range sm {
if v.created > lasttime {
logs.Info("start upgrade", v.name)
v.m.Reset()
v.m.Up()
err := v.m.Exec(v.name, "up")
if err != nil {
logs.Error("execute error:", err)
time.Sleep(2 * time.Second)
return err
}
logs.Info("end upgrade:", v.name)
i++
}
}
logs.Info("total success upgrade:", i, " migration")
time.Sleep(2 * time.Second)
return nil
}
// Error logs a message at error level.
func Error(v ...interface{}) {
logs.Error(generateFmtStr(len(v)), v...)
}
// Implement http.Handler interface.
func (p *ControllerRegister) ServeHTTP(rw http.ResponseWriter, r *http.Request) {
startTime := time.Now()
var (
runRouter reflect.Type
findRouter bool
runMethod string
routerInfo *controllerInfo
isRunnable bool
)
context := p.pool.Get().(*beecontext.Context)
context.Reset(rw, r)
defer p.pool.Put(context)
if BConfig.RecoverFunc != nil {
defer BConfig.RecoverFunc(context)
}
context.Output.EnableGzip = BConfig.EnableGzip
if BConfig.RunMode == DEV {
context.Output.Header("Server", BConfig.ServerName)
}
var urlPath = r.URL.Path
if !BConfig.RouterCaseSensitive {
urlPath = strings.ToLower(urlPath)
}
// filter wrong http method
if _, ok := HTTPMETHOD[r.Method]; !ok {
http.Error(rw, "Method Not Allowed", 405)
goto Admin
}
// filter for static file
if len(p.filters[BeforeStatic]) > 0 && p.execFilter(context, urlPath, BeforeStatic) {
goto Admin
}
serverStaticRouter(context)
if context.ResponseWriter.Started {
findRouter = true
goto Admin
}
if r.Method != "GET" && r.Method != "HEAD" {
if BConfig.CopyRequestBody && !context.Input.IsUpload() {
context.Input.CopyBody(BConfig.MaxMemory)
}
context.Input.ParseFormOrMulitForm(BConfig.MaxMemory)
}
// session init
if BConfig.WebConfig.Session.SessionOn {
var err error
context.Input.CruSession, err = GlobalSessions.SessionStart(rw, r)
if err != nil {
logs.Error(err)
exception("503", context)
goto Admin
}
defer func() {
if context.Input.CruSession != nil {
context.Input.CruSession.SessionRelease(rw)
}
}()
}
if len(p.filters[BeforeRouter]) > 0 && p.execFilter(context, urlPath, BeforeRouter) {
goto Admin
}
// User can define RunController and RunMethod in filter
if context.Input.RunController != nil && context.Input.RunMethod != "" {
findRouter = true
isRunnable = true
runMethod = context.Input.RunMethod
runRouter = context.Input.RunController
} else {
routerInfo, findRouter = p.FindRouter(context)
}
//if no matches to url, throw a not found exception
if !findRouter {
exception("404", context)
goto Admin
}
if splat := context.Input.Param(":splat"); splat != "" {
for k, v := range strings.Split(splat, "/") {
context.Input.SetParam(strconv.Itoa(k), v)
}
}
//execute middleware filters
if len(p.filters[BeforeExec]) > 0 && p.execFilter(context, urlPath, BeforeExec) {
goto Admin
}
if routerInfo != nil {
if BConfig.RunMode == DEV {
//store router pattern into context
context.Input.SetData("RouterPattern", routerInfo.pattern)
}
if routerInfo.routerType == routerTypeRESTFul {
if _, ok := routerInfo.methods[r.Method]; ok {
isRunnable = true
routerInfo.runFunction(context)
} else {
exception("405", context)
goto Admin
}
} else if routerInfo.routerType == routerTypeHandler {
isRunnable = true
routerInfo.handler.ServeHTTP(rw, r)
} else {
runRouter = routerInfo.controllerType
method := r.Method
if r.Method == "POST" && context.Input.Query("_method") == "PUT" {
method = "PUT"
}
if r.Method == "POST" && context.Input.Query("_method") == "DELETE" {
method = "DELETE"
}
if m, ok := routerInfo.methods[method]; ok {
runMethod = m
} else if m, ok = routerInfo.methods["*"]; ok {
runMethod = m
} else {
runMethod = method
}
}
}
// also defined runRouter & runMethod from filter
if !isRunnable {
//Invoke the request handler
vc := reflect.New(runRouter)
execController, ok := vc.Interface().(ControllerInterface)
if !ok {
panic("controller is not ControllerInterface")
}
//call the controller init function
execController.Init(context, runRouter.Name(), runMethod, vc.Interface())
//call prepare function
execController.Prepare()
//if XSRF is Enable then check cookie where there has any cookie in the request's cookie _csrf
if BConfig.WebConfig.EnableXSRF {
execController.XSRFToken()
if r.Method == "POST" || r.Method == "DELETE" || r.Method == "PUT" ||
(r.Method == "POST" && (context.Input.Query("_method") == "DELETE" || context.Input.Query("_method") == "PUT")) {
execController.CheckXSRFCookie()
}
}
execController.URLMapping()
if !context.ResponseWriter.Started {
//exec main logic
switch runMethod {
case "GET":
execController.Get()
case "POST":
execController.Post()
case "DELETE":
execController.Delete()
case "PUT":
execController.Put()
case "HEAD":
execController.Head()
case "PATCH":
execController.Patch()
case "OPTIONS":
execController.Options()
default:
if !execController.HandlerFunc(runMethod) {
var in []reflect.Value
method := vc.MethodByName(runMethod)
method.Call(in)
}
}
//render template
if !context.ResponseWriter.Started && context.Output.Status == 0 {
if BConfig.WebConfig.AutoRender {
if err := execController.Render(); err != nil {
logs.Error(err)
}
}
}
}
// finish all runRouter. release resource
execController.Finish()
}
//execute middleware filters
if len(p.filters[AfterExec]) > 0 && p.execFilter(context, urlPath, AfterExec) {
goto Admin
}
if len(p.filters[FinishRouter]) > 0 && p.execFilter(context, urlPath, FinishRouter) {
goto Admin
}
Admin:
//admin module record QPS
if BConfig.Listen.EnableAdmin {
timeDur := time.Since(startTime)
if FilterMonitorFunc(r.Method, r.URL.Path, timeDur) {
if runRouter != nil {
go toolbox.StatisticsMap.AddStatistics(r.Method, r.URL.Path, runRouter.Name(), timeDur)
} else {
go toolbox.StatisticsMap.AddStatistics(r.Method, r.URL.Path, "", timeDur)
}
}
}
if BConfig.RunMode == DEV || BConfig.Log.AccessLogs {
timeDur := time.Since(startTime)
var devInfo string
statusCode := context.ResponseWriter.Status
if statusCode == 0 {
statusCode = 200
}
iswin := (runtime.GOOS == "windows")
statusColor := logs.ColorByStatus(iswin, statusCode)
methodColor := logs.ColorByMethod(iswin, r.Method)
resetColor := logs.ColorByMethod(iswin, "")
if findRouter {
if routerInfo != nil {
devInfo = fmt.Sprintf("|%15s|%s %3d %s|%13s|%8s|%s %-7s %s %-3s r:%s", context.Input.IP(), statusColor, statusCode,
resetColor, timeDur.String(), "match", methodColor, r.Method, resetColor, r.URL.Path,
routerInfo.pattern)
} else {
devInfo = fmt.Sprintf("|%15s|%s %3d %s|%13s|%8s|%s %-7s %s %-3s", context.Input.IP(), statusColor, statusCode, resetColor,
timeDur.String(), "match", methodColor, r.Method, resetColor, r.URL.Path)
}
} else {
devInfo = fmt.Sprintf("|%15s|%s %3d %s|%13s|%8s|%s %-7s %s %-3s", context.Input.IP(), statusColor, statusCode, resetColor,
timeDur.String(), "nomatch", methodColor, r.Method, resetColor, r.URL.Path)
}
if iswin {
logs.W32Debug(devInfo)
} else {
logs.Debug(devInfo)
}
}
// Call WriteHeader if status code has been set changed
if context.Output.Status != 0 {
context.ResponseWriter.WriteHeader(context.Output.Status)
}
}