Golang zerver.Response类代码示例

func (c *CORS) filter(req zerver.Request, resp zerver.Response, chain zerver.FilterChain) {
	headers := resp.Headers()
	origin := "*"
	if !c.allowAll {
		origin = req.GetHeader(_CORS_ORIGIN)
		if !c.allow(origin) {
			resp.StatusCode(http.StatusForbidden)
			return
		}
	}
	headers.Set(_CORS_ALLOWORIGIN, origin)

	headers.Set(_CORS_ALLOWMETHODS, c.methods)
	headers.Set(_CORS_ALLOWHEADERS, c.headers)

	headers.Set(_CORS_ALLOWCREDENTIALS, c.allowCredentials)
	if c.exposeHeaders != "" {
		headers.Set(_CORS_EXPOSEHEADERS, c.exposeHeaders)
	}
	if c.preflightMaxage != "" {
		headers.Set(_CORS_MAXAGE, c.preflightMaxage)
	}

	chain(req, resp)
}

func (ri *RequestId) Filter(req zerver.Request, resp zerver.Response, chain zerver.FilterChain) {
	if req.ReqMethod() == zerver.METHOD_GET {
		chain(req, resp)
		return
	}

	reqId := req.GetHeader(ri.HeaderName)
	if reqId == "" {
		if ri.PassingOnNoId {
			chain(req, resp)
		} else {
			resp.StatusCode(http.StatusBadRequest)
		}
	} else {
		ip := http2.IpOfAddr(req.RemoteAddr())
		id := ip + ":" + reqId
		if err := ri.Store.Save(id); err == ErrRequestIDExist {
			resp.StatusCode(http.StatusForbidden)
		} else if err != nil {
			ri.log.Warn(log.M{"msg": "save request id failed", "err": err.Error()})
		} else {
			chain(req, resp)
			ri.Store.Remove(id)
		}
	}
}

func Send(resp zerver.Response, key string, value interface{}, err error) {
	if err != nil {
		SendErr(resp, err)
	} else {
		resp.Send(key, value)
	}
}

// Verify xsrf token, used as zerver.FilterFunc
//
// The reason not use "Filter" as function name is to prevent the Xsrf from used as both Component and Filter
func (x *Xsrf) Verify(req zerver.Request, resp zerver.Response, chain zerver.FilterChain) {
	if x.VerifyFor(req) {
		chain(req, resp)
	} else {
		resp.StatusCode(http.StatusBadRequest)
	}
}

func ReportStatus(resp zerver.Response, status int, err error) {
	if err != nil {
		SendErr(resp, err)
	} else {
		resp.ReportStatus(status)
	}
}

// Verify xsrf token, used as zerver.FilterFunc
//
// The reason not use "Filter" as function name is to prevent the Xsrf from used as both Component and Filter
func (x *Xsrf) Verify(req zerver.Request, resp zerver.Response, chain zerver.FilterChain) {
	if x.VerifyFor(req) {
		chain(req, resp)
	} else {
		resp.ReportBadRequest()
		resp.Send("error", x.Error)
	}
}

func (j *JWTAuth) Filter(req zerver.Request, resp zerver.Response, chain zerver.FilterChain) {
	if tokstr, basic := req.Authorization(); !basic && tokstr != "" {
		if tok, err := j.JWT.Parse(tokstr); err == nil {
			req.SetAttr(j.AuthTokenAttrName, tok)
			chain(req, resp)
			return
		}
	}

	resp.ReportUnauthorized()
}

func (l *Log) Filter(req zerver.Request, resp zerver.Response, chain zerver.FilterChain) {
	now := time2.Now()
	chain(req, resp)
	cost := time2.Now().Sub(now)

	l.log.Info(log.M{
		"method":     req.ReqMethod(),
		"url":        req.URL().String(),
		"remote":     req.RemoteAddr(),
		"userAgent":  req.GetHeader(zerver.HEADER_USERAGENT),
		"cost":       cost.String(),
		"statusCode": resp.StatusCode(0),
	})
}

func (ri *RequestId) Filter(req zerver.Request, resp zerver.Response, chain zerver.FilterChain) {
	if req.Method() == "GET" {
		chain(req, resp)
		return
	}

	reqId := req.Header(ri.HeaderName)
	if reqId == "" {
		if ri.PassingOnNoId {
			chain(req, resp)
		} else {
			resp.ReportBadRequest()
			resp.Send("error", ri.Error)
		}
	} else {
		id := req.RemoteIP() + ":" + reqId
		if err := ri.Store.Save(id); err == ErrRequestIDExist {
			resp.ReportForbidden()
			resp.Send("error", ri.ErrorOverlap)
		} else if err != nil {
			ri.logger.Warnln(err)
		} else {
			chain(req, resp)
			ri.Store.Remove(id)
		}
	}
}

func (h *Handler) Handle(req zerver.Request, resp zerver.Response) {
	req.Wrap(func(req *http.Request, shouldClose bool) (r *http.Request, c bool) {
		r, c = req, shouldClose

		err := req.ParseMultipartForm(h.MaxMemory)
		if err != nil {
			handle.SendErr(resp, handle.BadRequest(err))
			return
		}

		if req.MultipartForm == nil || req.MultipartForm.File == nil {
			handle.SendErr(resp, h.ErrNoFile)
			return
		}

		files, has := req.MultipartForm.File[h.FileKey]
		if !has || len(files) == 0 {
			handle.SendErr(resp, h.ErrNoFile)
			return
		}

		file := convertFileHandler(files[0])
		if !h.isSuffixSupported(filepath.Ext(file.Filename)) {
			handle.SendErr(resp, h.ErrNonImage)
			return
		}

		if file.Size() > h.MaxSize {
			handle.SendErr(resp, h.ErrTooLarge)
			return
		}

		fd, err := file.Open()
		if err != nil {
			handle.SendErr(resp, handle.BadRequest(err))
			return
		}

		defer fd.Close()
		path, err := h.SaveImage(fd)
		if err != nil {
			handle.SendErr(resp, err)
			return
		}

		resp.Send(h.PathKey, path)
		return
	})
}

func (r *Recovery) Filter(req zerver.Request, resp zerver.Response, chain zerver.FilterChain) {
	defer func() {
		if err := recover(); err != nil {
			resp.StatusCode(http.StatusInternalServerError)
			buf := make([]byte, r.Bufsize)
			n := runtime.Stack(buf, false)
			buf = buf[:n]

			r.log.Raw(0, log.LEVEL_ERROR, string(buf))
			return
		}
	}()

	chain(req, resp)
}

func Compress(req zerver.Request, resp zerver.Response, chain zerver.FilterChain) {
	encoding := req.AcceptEncodings()

	if strings.Contains(encoding, zerver.ENCODING_GZIP) {
		resp.SetContentEncoding(zerver.ENCODING_GZIP)
		resp.Wrap(gzipWrapper)
	} else if strings.Contains(encoding, zerver.ENCODING_DEFLATE) {
		resp.SetContentEncoding(zerver.ENCODING_DEFLATE)
		resp.Wrap(flateWrapper)
	} else {
		chain(req, resp)
		return
	}

	chain(req, resp)
	resp.RemoveHeader("Content-Length")
}

func (r *Recovery) Filter(req zerver.Request, resp zerver.Response, chain zerver.FilterChain) {
	defer func() {
		e := recover()
		if e == nil || r.NoStack {
			return
		}

		resp.ReportInternalServerError()

		buffer := bytes.NewBuffer(make([]byte, 0, r.Bufsize))
		fmt.Fprint(buffer, e)
		buf := buffer.Bytes()

		runtime.Stack(buf[len(buf):cap(buf)], false)

		req.Logger().Errorln(unsafe2.String(buf[:cap(buf)]))
	}()

	chain(req, resp)
}

func (j *JSONP) Filter(req zerver.Request, resp zerver.Response, chain zerver.FilterChain) {
	if req.ReqMethod() != zerver.METHOD_GET {
		chain(req, resp)
		return
	}

	callback := req.Vars().QueryVar(j.CallbackVar)
	if callback == "" {
		chain(req, resp)
		return
	}

	buffer := bytes.NewBuffer(make([]byte, 0, 256))
	bw := wrap.BuffRespWriter{ // to avoid write header 200 first when write callback name
		Buffer: buffer,
	}
	resp.Wrap(func(w http.ResponseWriter, shouldClose bool) (http.ResponseWriter, bool) {
		bw.ResponseWriter = w
		bw.ShouldClose = shouldClose
		return &bw, shouldClose
	})
	chain(req, resp)
	bw.Buffer = nil

	_, err := io2.WriteString(resp, callback)
	if err == nil {
		_, err = io2.WriteString(resp, "(")
		if err == nil {
			_, err = resp.Write(buffer.Bytes())
			if err == nil {
				_, err = io2.WriteString(resp, ")")
			}
		}
	}
	if err != nil {
		j.log.Warn(log.M{"msg": "write jsonp response failed", "err": err.Error()})
	}
}

func (l *Log) Filter(req zerver.Request, resp zerver.Response, chain zerver.FilterChain) {
	if l.CountTime {
		now := time2.Now()

		chain(req, resp)
		cost := time2.Now().Sub(now)
		l.logger.Infoln(
			cost.String(),
			resp.Status(),
			req.Method(),
			req.URL().Path,
			req.RemoteIP(),
			req.UserAgent())
	} else {
		chain(req, resp)
		l.logger.Infoln(
			resp.Status(),
			req.Method(),
			req.URL().Path,
			req.RemoteIP(),
			req.UserAgent())
	}
}