Golang logging.Error函數代碼示例

//http get to the given ressource
func (t *Townclient) Get(sUrl string) (*http.Response, error) {
	if strings.Contains(sUrl, "jpg") || strings.Contains(sUrl, "png") || strings.Contains(sUrl, "gif") || strings.Contains(sUrl, "jpeg") {
	} else {
		log.Info("%s[GET] url: %v", TAG, sUrl)
	}

	client := &http.Client{}
	req, err := http.NewRequest("GET", sUrl, nil)
	if err != nil {
		log.Error("%s couldn't create Request to: %v", TAG, sUrl)
		return nil, err
	}

	t.addHeader(req)

	if t.cookies != nil {
		for _, cookie := range t.cookies {
			req.AddCookie(cookie)
		}
	}

	time1 := time.Now()
	t.dumpRequest(req, "town_get_req_"+strconv.Itoa(time1.Nanosecond()))

	//connect to sUrl
	resp, err := client.Do(req)
	if err != nil {
		log.Error("%s couldn't connect to: %v", TAG, sUrl)
		return nil, err
	}

	t.dumpResponse(resp, "town_get_resp_"+strconv.Itoa(time1.Nanosecond()))

	return resp, nil
}

func ReadConfigs() error {

	if err := autoflag.Load(gofigure.DefaultLoader, &Config); err != nil {
		logging.Error("Error loading configs: %v", err)
		return err
	}
	logging.Info("Read configs: %#v", &Config)

	for k, m := range Config.APIConfigs {

		if conf, found := Config.apiconfs[k]; found && conf != nil {

			b, err := yaml.Marshal(m)
			if err == nil {

				if err := yaml.Unmarshal(b, conf); err != nil {
					logging.Error("Error reading config for API %s: %s", k, err)
				} else {
					logging.Debug("Unmarshaled API config for %s: %#v", k, conf)
				}

			} else {

				logging.Error("Error marshalling config for API %s: %s", k, err)

			}
		} else {
			logging.Warning("API Section %s in config file not registered with server", k)
		}

	}

	return nil

}

func (t *Townmanager) Start() {
	t.page = 1
	t.end = false

	tc := &Townclient{}
	tc.User = t.User
	tc.Password = t.Password

	err := t.init(tc)
	log.Info("%s init finished, starting to parse...", TAG)
	if err != nil {
		log.Error("%s init failed", TAG)
		log.Error("%s %s", TAG, err.Error())
		return
	}

	tp := &Townparser{Url: t.url, Tc: tc}

	count, err := tp.ParsePageCount()
	if err != nil {
		log.Error("%s %s", TAG, err.Error())
		return
	}
	t.maxpage = count
	log.Info("%s crawling approximately %v pages", TAG, t.maxpage)
	t.saveReleases(tp.Rel)

	i := 1
	for {
		if i == 1 {
			err = tp.ParseReleases(false)
			if err != nil {
				log.Error("%s %s", TAG, err.Error())
				break
			}
		} else {
			tp = nil
			tp = &Townparser{Url: t.url + "&pp=25&page=" + strconv.Itoa(i), Tc: tc}
			err = tp.ParseReleases(true)
			if err != nil {
				log.Error("%s %s", TAG, err.Error())
				break
			}
		}
		log.Info("%s crawled page %v/%v", TAG, i, t.maxpage)
		t.saveReleases(tp.Rel)
		time.Sleep(5 * time.Second)
		i++
		if i == t.maxpage+1 {
			break
		}
		if t.end {
			log.Info("%s found old end point", TAG)
			break
		}
	}
	log.Info("%s parser closing", TAG)

}

func (r *Runner) Start() {
	go func() {
		timeout := time.Second * 1
		for {
			select {
			case <-time.After(timeout):
				if !r.checkTown() {
					timeout = time.Minute * 5
					log.Info("town: trying login again in %v minute", timeout)
				} else {
					tm := town.Townmanager{User: r.Server.Config2.TownName, Password: r.Server.Config2.TownPassword, DB: r.Server.RelDB}
					go tm.Start()
					dur, err := time.ParseDuration(r.Server.Config2.Timeout)
					if err != nil {
						log.Error(err.Error())
					}
					c := time.Tick(dur)
					for _ = range c {
						log.Info("tick start town")
						go tm.Start()
					}
				}
			}
			break
		}
		return
	}()
	go func() {
		timeout := time.Second * 2
		for {
			select {
			case <-time.After(timeout):
				if !r.checkTown() {
					timeout = time.Minute * 5
					log.Info("ghost: trying to login again in %v minute", timeout)
				} else {
					gm := ghost.Ghostmanager{User: r.Server.Config2.GhostName, Password: r.Server.Config2.GhostPassword, DB: r.Server.RelDB}
					go gm.Start()
					dur, err := time.ParseDuration(r.Server.Config2.Timeout)
					if err != nil {
						log.Error(err.Error())
					}
					c := time.Tick(dur)
					for _ = range c {
						log.Info("tick start ghost")
						go gm.Start()
					}
				}
			}
			break
		}
		return
	}()
}

func (g *Ghostmanager) Start() {

	g.end = false

	gc := &Ghostclient{}
	gc.User = g.User
	gc.Password = g.Password

	err := g.init(gc)
	log.Info("%s init finished, starting to parse...", TAG)
	if err != nil {
		log.Error("%s init failed", TAG)
		log.Error("%s %s", TAG, err.Error())
		return
	}

	tp := &Ghostparser{Url: g.url, Gc: gc}

	i := 1
	for {
		if i == 1 {
			err = tp.ParseReleases()
			if err != nil {
				log.Error("%s %s", TAG, err.Error())
				break
			}
			g.maxpage = tp.Count
			log.Info("%s crawling approximately %v pages", TAG, g.maxpage)
		} else {
			tp = nil
			tp = &Ghostparser{Url: g.url + "&page=" + strconv.Itoa(i), Gc: gc}
			err = tp.ParseReleases()
			if err != nil {
				log.Error("%s %s", TAG, err.Error())
				break
			}
		}
		g.saveReleases(tp.Rel)
		log.Info("%s crawled page %v/%v", TAG, i, g.maxpage)
		time.Sleep(5 * time.Second)
		i++
		if i == g.maxpage+1 {
			break
		}
		if g.end {
			log.Info("%s found old end point", TAG)
			break
		}
	}
	log.Info("%s closing", TAG)
}

func GetLogs(server *Server, parms martini.Params) string {
	offset, _ := strconv.Atoi(parms["offset"])

	var all []mydb.Log
	_, err := server.LogDB.Select(&all, "select * from log ORDER BY id DESC LIMIT 50 OFFSET ?", offset)
	if err != nil {
		log.Error(err.Error())
	}
	by, err := json.Marshal(all)
	if err != nil {
		log.Error(err.Error())
	}

	return string(by)

}

// Parse the user input into a request handler struct, with input validation
func parseInput(r *http.Request, input interface{}, validator *RequestValidator) error {

	schemaDecoder.IgnoreUnknownKeys(true)

	if err := r.ParseForm(); err != nil {
		return InvalidRequestError("Error parsing request data: %s", err)
	}

	// We do not map and validate input to non-struct handlers
	if reflect.TypeOf(input).Kind() != reflect.Func {

		if err := schemaDecoder.Decode(input, r.Form); err != nil {
			return InvalidRequestError("Error decoding schema: %s", err)
		}

		// Validate the input based on the API spec
		if err := validator.Validate(input, r); err != nil {
			logging.Error("Error validating http.Request!: %s", err)
			return NewError(err)

		}

	}

	return nil

}

func (rv *RequestValidator) Validate(request interface{}, r *http.Request) error {

	val := reflect.ValueOf(request)
	if val.Kind() == reflect.Ptr {
		val = val.Elem()
	}

	//go over all the validators
	for _, v := range rv.fieldValidators {

		// find the field in the struct. we assume it's there since we build the validators on start time
		field := val.FieldByName(v.GetKey())

		// if the arg is optional and not set, we set the default
		if v.IsOptional() && (!field.IsValid() || r.FormValue(v.GetParamName()) == "") {
			def, ok := v.GetDefault()
			if ok {
				logging.Info("Default value for %s: %v", v.GetKey(), def)
				field.Set(reflect.ValueOf(def).Convert(field.Type()))
			}
		}

		// now we validate!
		e := v.Validate(field, r)

		if e != nil {
			logging.Error("Could not validate field %s: %s", v.GetParamName(), e)
			return e
		}

	}

	return nil
}

func (t *Townclient) getSValue() (sValue string) {
	log.Info("%s getting sValue for town login", TAG)
	sValue = ""
	var doc *goquery.Document
	var e error
	log.Info("%s[GET] url: %v", TAG, ROOT)
	if doc, e = goquery.NewDocument(ROOT); e != nil {
		log.Error("%s %s", TAG, e.Error())
		return
	}

	doc.Find("input").Each(func(i int, s *goquery.Selection) {
		attr, exists := s.Attr("name")
		if exists == true {
			if attr == "s" {
				bla, exists := s.Attr("value")
				if exists == true {
					sValue = bla
				}
			}
		}

	})
	log.Info("%s sValue: %v", TAG, sValue)
	return sValue
}

func SetRating(server *Server, parms martini.Params) string {
	checksum := parms["checksum"]
	score, _ := strconv.Atoi(parms["score"])

	rating, err := server.RelDB.SelectInt("select rating from release where checksum=?", checksum)
	if err != nil {
		log.Error(err.Error())
	}
	oldrating := rating
	rating += int64(score)
	log.Info("changing score for %s from %v to %v", checksum, oldrating, rating)
	_, err = server.RelDB.Exec("update release set rating=? where checksum=?", rating, checksum)
	if err != nil {
		log.Error(err.Error())
	}

	return fmt.Sprintf("%v %v", checksum, score)
}

func LinkFollow(w http.ResponseWriter, r *http.Request, server *Server, parms martini.Params) {
	checksum := parms["checksum"]

	hits, err := server.RelDB.SelectInt("select hits from release where checksum=?", checksum)
	if err != nil {
		log.Error(err.Error())
	}

	oldhits := hits
	hits += 1
	log.Info("increasing hits for %s from %v to %v", checksum, oldhits, hits)
	_, err = server.RelDB.Exec("update release set hits=? where checksum=?", hits, checksum)
	if err != nil {
		log.Error(err.Error())
	}

	url, err := server.RelDB.SelectStr("select url from release where checksum=?", checksum)
	http.Redirect(w, r, url, http.StatusTemporaryRedirect)
}

func (j *JWTAuthenticator) EncodeToken(data interface{}) (string, error) {
	token := jwt.New(jwt.SigningMethodHS256)
	token.Claims["data"] = data

	sstr, err := token.SignedString(j.key)
	if err != nil {
		logging.Error("Error signing token: %s", err)

	}
	return sstr, err
}

func (g *Ghostparser) getBoardId(str string) int {
	regex, err := regexp.Compile("boardid=.+&")
	if err != nil {
		log.Error("%s %s", TAG, err.Error())
		return -1
	}

	str = regex.FindString(str)
	str = strings.Replace(str, "&", "", -1)
	astr := strings.Split(str, "=")
	if len(astr) < 2 {
		return -1
	}
	i, err := strconv.Atoi(astr[1])
	if err != nil {
		log.Error("%s %s", TAG, err.Error())
		return -1
	}
	return i
}

func (a *API) middlewareHandler(chain *step, security SecurityScheme, renderer Renderer) func(w http.ResponseWriter, r *http.Request, p httprouter.Params) {

	// allow overriding the API's default renderer with a per-route one
	if renderer == nil {
		renderer = a.Renderer
	}

	return func(w http.ResponseWriter, r *http.Request, p httprouter.Params) {

		req := NewRequest(r)

		if !a.AllowInsecure && !req.Secure {
			// local requests bypass security
			if req.RemoteIP != "127.0.0.1" {
				http.Error(w, insecureAccessMessage, http.StatusForbidden)
				return
			}
		}

		r.ParseForm()
		// Copy values from the router params to the request params
		for _, v := range p {
			r.Form.Set(v.Key, v.Value)
		}

		var ret interface{}
		var err error

		if security != nil {
			if err = security.Validate(req); err != nil {
				logging.Warning("Error validating security scheme: %s", err)

				if e, ok := err.(*internalError); ok {
					e.Code = ErrUnauthorized
					err = e
				}
			}
		}
		if err == nil {
			ret, err = chain.handle(w, req)
		}

		if err != Hijacked {

			if err = renderer.Render(ret, err, w, req); err != nil {
				logging.Error("Error rendering response: %s", err)
			}
		} else {
			logging.Debug("Not rendering hijacked request %s", r.RequestURI)
		}

	}

}

// configure registers the API's routes on a router. If the passed router is nil, we create a new one and return it.
// The nil mode is used when an API is run in stand-alone mode.
func (a *API) configure(router *httprouter.Router) *httprouter.Router {

	if router == nil {
		router = httprouter.New()
	}

	for i, route := range a.Routes {

		if err := route.parseInfo(route.Path); err != nil {
			logging.Error("Error parsing info for %s: %s", route.Path, err)
		}
		a.Routes[i] = route
		h := a.handler(route)

		pth := a.FullPath(route.Path)

		if route.Methods&GET == GET {
			logging.Info("Registering GET handler %v to path %s", h, pth)
			router.Handle("GET", pth, h)
		}
		if route.Methods&POST == POST {
			logging.Info("Registering POST handler %v to path %s", h, pth)
			router.Handle("POST", pth, h)

		}

	}

	chain := buildChain(a.SwaggerMiddleware...)
	if chain == nil {
		chain = buildChain(a.swaggerHandler())
	} else {
		chain.append(a.swaggerHandler())
	}

	// Server the API documentation swagger
	router.GET(a.FullPath("/swagger"), a.middlewareHandler(chain, nil, nil))

	chain = buildChain(a.TestMiddleware...)
	if chain == nil {
		chain = buildChain(a.testHandler())
	} else {
		chain.append(a.testHandler())
	}

	router.GET(path.Join("/test", a.root(), ":category"), a.middlewareHandler(chain, nil, nil))

	// Redirect /$api/$version/console => /console?url=/$api/$version/swagger
	uiPath := fmt.Sprintf("/console?url=%s", url.QueryEscape(a.FullPath("/swagger")))
	router.Handler("GET", a.FullPath("/console"), http.RedirectHandler(uiPath, 301))

	return router

}