Golang RequestCtx.IsPost方法代码示例

func (p *Proxy) Handler(ctx *fasthttp.RequestCtx) {

	respState := rule.Evaluate(p.Rules, ctx)
	if respState == types.SERVED {
		return
	}

	appRequest := fasthttp.AcquireRequest()
	defer fasthttp.ReleaseRequest(appRequest)
	appRequest.Header.SetMethodBytes(ctx.Method())
	ctx.Request.Header.CopyTo(&appRequest.Header)
	if ctx.IsPost() || ctx.IsPut() {
		appRequest.SetBody(ctx.PostBody())
	}

	resp := fasthttp.AcquireResponse()
	defer fasthttp.ReleaseResponse(resp)
	err := p.client.Do(appRequest, resp)
	if err != nil {
		log.Println("Response error:", err, resp)
		ctx.SetStatusCode(429)
		return
	}

	resp.Header.CopyTo(&ctx.Response.Header)

	ctx.SetStatusCode(resp.StatusCode())

	resp.BodyWriteTo(ctx)
}

// ServeHTTP is called whenever there is a new request.
// This is quite similar to JavaEE Servlet interface.
func (h *MyHandler) ServeHTTP(ctx *fasthttp.RequestCtx) {

	// In the future we can use requester can detect request spammers!
	// requester := ctx.RemoteAddr()

	// Increase request count
	count := &(h.requests)
	atomic.AddUint64(count, 1)

	if ctx.IsGet() {

		url := ctx.URI()
		operations, format, err, invalid := ParseURI(url, h.imageSource, h.watermarker)
		if err != nil {
			ctx.NotFound()
			logging.Debug(err)
			return
		}
		if invalid != nil {
			ctx.Error(invalid.Error(), 400)
			return
		}
		blob, err := h.operator.GetBlob(operations...)
		if err != nil {
			ctx.NotFound()
			logging.Debug(err)
		} else {
			ctx.SetContentType("image/" + format)
			ctx.Write(blob)
			logging.Debug("Blob returned")
		}

	} else if ctx.IsPost() {
		// POST is currently unused so we can use this for testing
		h.RetrieveHello(ctx)
		logging.Debug("Post request received")
	}
}

// HandleTokenRequest 处理令牌请求
func (fs *FastServer) HandleTokenRequest(ctx *fasthttp.RequestCtx) (err error) {
	if !ctx.IsPost() {
		err = ErrRequestMethodInvalid
		return
	}
	gt := oauth2.GrantType(string(ctx.FormValue("grant_type")))
	if gt == "" || !fs.checkGrantType(gt) {
		err = ErrGrantTypeInvalid
		return
	}

	var ti oauth2.TokenInfo
	clientID, clientSecret, err := fs.cfg.Handler.ClientFastHandler(ctx)
	if err != nil {
		return
	}
	tgr := &oauth2.TokenGenerateRequest{
		ClientID:     clientID,
		ClientSecret: clientSecret,
	}

	switch gt {
	case oauth2.AuthorizationCodeCredentials:
		tgr.RedirectURI = string(ctx.FormValue("redirect_uri"))
		tgr.Code = string(ctx.FormValue("code"))
		tgr.IsGenerateRefresh = true
		ti, err = fs.manager.GenerateAccessToken(oauth2.AuthorizationCodeCredentials, tgr)
	case oauth2.PasswordCredentials:
		userID, uerr := fs.cfg.Handler.UserHandler(string(ctx.FormValue("username")), string(ctx.FormValue("password")))
		if uerr != nil {
			err = uerr
			return
		}
		tgr.UserID = userID
		tgr.Scope = string(ctx.FormValue("scope"))
		tgr.IsGenerateRefresh = true
		ti, err = fs.manager.GenerateAccessToken(oauth2.PasswordCredentials, tgr)
	case oauth2.ClientCredentials:
		tgr.Scope = string(ctx.FormValue("scope"))
		ti, err = fs.manager.GenerateAccessToken(oauth2.ClientCredentials, tgr)
	case oauth2.RefreshCredentials:
		tgr.Refresh = string(ctx.FormValue("refresh_token"))
		tgr.Scope = string(ctx.FormValue("scope"))
		if tgr.Scope != "" { // 检查授权范围
			rti, rerr := fs.manager.LoadRefreshToken(tgr.Refresh)
			if rerr != nil {
				err = rerr
				return
			} else if rti.GetClientID() != tgr.ClientID {
				err = ErrRefreshInvalid
				return
			} else if verr := fs.cfg.Handler.ScopeHandler(tgr.Scope, rti.GetScope()); verr != nil {
				err = verr
				return
			}
		}
		ti, err = fs.manager.RefreshAccessToken(tgr)
		if err == nil {
			ti.SetRefresh("")
		}
	}

	if err != nil {
		return
	}
	err = fs.ResJSON(ctx, ti)
	return
}