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Golang Response.Length方法代码示例

本文整理汇总了Golang中github.com/ipfs/go-ipfs/commands.Response.Length方法的典型用法代码示例。如果您正苦于以下问题:Golang Response.Length方法的具体用法?Golang Response.Length怎么用?Golang Response.Length使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在github.com/ipfs/go-ipfs/commands.Response的用法示例。


在下文中一共展示了Response.Length方法的3个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Golang代码示例。

示例1: sendResponse

func sendResponse(w http.ResponseWriter, r *http.Request, res cmds.Response, req cmds.Request) {
	mime, err := guessMimeType(res)
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}

	status := http.StatusOK
	// if response contains an error, write an HTTP error status code
	if e := res.Error(); e != nil {
		if e.Code == cmds.ErrClient {
			status = http.StatusBadRequest
		} else {
			status = http.StatusInternalServerError
		}
		// NOTE: The error will actually be written out by the reader below
	}

	out, err := res.Reader()
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}

	h := w.Header()

	// Set up our potential trailer
	h.Set("Trailer", StreamErrHeader)

	if res.Length() > 0 {
		h.Set(contentLengthHeader, strconv.FormatUint(res.Length(), 10))
	}

	if _, ok := res.Output().(io.Reader); ok {
		// set streams output type to text to avoid issues with browsers rendering
		// html pages on priveleged api ports
		mime = "text/plain"
		h.Set(streamHeader, "1")
	}

	// if output is a channel and user requested streaming channels,
	// use chunk copier for the output
	_, isChan := res.Output().(chan interface{})
	if !isChan {
		_, isChan = res.Output().(<-chan interface{})
	}

	if isChan {
		h.Set(channelHeader, "1")
	}

	// catch-all, set to text as default
	if mime == "" {
		mime = "text/plain"
	}

	h.Set(contentTypeHeader, mime)
	h.Set(transferEncodingHeader, "chunked")

	// set 'allowed' headers
	h.Set("Access-Control-Allow-Headers", "X-Stream-Output, X-Chunked-Output")
	// expose those headers
	h.Set("Access-Control-Expose-Headers", "X-Stream-Output, X-Chunked-Output")

	if r.Method == "HEAD" { // after all the headers.
		return
	}

	w.WriteHeader(status)
	err = flushCopy(w, out)
	if err != nil {
		log.Error("err: ", err)
		w.Header().Set(StreamErrHeader, sanitizedErrStr(err))
	}
}
开发者ID:andradeandrey,项目名称:go-ipfs,代码行数:75,代码来源:handler.go

示例2: sendResponse

func sendResponse(w http.ResponseWriter, r *http.Request, res cmds.Response, req cmds.Request) {
	mime, err := guessMimeType(res)
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}

	status := http.StatusOK
	// if response contains an error, write an HTTP error status code
	if e := res.Error(); e != nil {
		if e.Code == cmds.ErrClient {
			status = http.StatusBadRequest
		} else {
			status = http.StatusInternalServerError
		}
		// NOTE: The error will actually be written out by the reader below
	}

	out, err := res.Reader()
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}

	h := w.Header()

	// Set up our potential trailer
	h.Set("Trailer", StreamErrHeader)

	if res.Length() > 0 {
		h.Set(contentLengthHeader, strconv.FormatUint(res.Length(), 10))
	}

	if _, ok := res.Output().(io.Reader); ok {
		// we don't set the Content-Type for streams, so that browsers can MIME-sniff the type themselves
		// we set this header so clients have a way to know this is an output stream
		// (not marshalled command output)
		mime = ""
		h.Set(streamHeader, "1")
	}

	// if output is a channel and user requested streaming channels,
	// use chunk copier for the output
	_, isChan := res.Output().(chan interface{})
	if !isChan {
		_, isChan = res.Output().(<-chan interface{})
	}

	if isChan {
		h.Set(channelHeader, "1")
	}

	if mime != "" {
		h.Set(contentTypeHeader, mime)
	}
	h.Set(transferEncodingHeader, "chunked")

	if r.Method == "HEAD" { // after all the headers.
		return
	}

	w.WriteHeader(status)
	_, err = io.Copy(w, out)
	if err != nil {
		log.Error("err: ", err)
		w.Header().Set(StreamErrHeader, sanitizedErrStr(err))
	}
}
开发者ID:ober,项目名称:go-ipfs,代码行数:68,代码来源:handler.go

示例3: sendResponse

func sendResponse(w http.ResponseWriter, req cmds.Request, res cmds.Response) {
	mime, err := guessMimeType(res)
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}

	status := http.StatusOK
	// if response contains an error, write an HTTP error status code
	if e := res.Error(); e != nil {
		if e.Code == cmds.ErrClient {
			status = http.StatusBadRequest
		} else {
			status = http.StatusInternalServerError
		}
		// NOTE: The error will actually be written out by the reader below
	}

	out, err := res.Reader()
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}

	h := w.Header()
	if res.Length() > 0 {
		h.Set(contentLengthHeader, strconv.FormatUint(res.Length(), 10))
	}

	if _, ok := res.Output().(io.Reader); ok {
		// we don't set the Content-Type for streams, so that browsers can MIME-sniff the type themselves
		// we set this header so clients have a way to know this is an output stream
		// (not marshalled command output)
		mime = ""
		h.Set(streamHeader, "1")
	}

	// if output is a channel and user requested streaming channels,
	// use chunk copier for the output
	_, isChan := res.Output().(chan interface{})
	if !isChan {
		_, isChan = res.Output().(<-chan interface{})
	}

	streamChans, _, _ := req.Option("stream-channels").Bool()
	if isChan {
		h.Set(channelHeader, "1")
		if streamChans {
			// streaming output from a channel will always be json objects
			mime = applicationJson
		}
	}

	if mime != "" {
		h.Set(contentTypeHeader, mime)
	}
	h.Set(transferEncodingHeader, "chunked")

	if err := writeResponse(status, w, out); err != nil {
		log.Error("error while writing stream", err)
	}
}
开发者ID:bit4bit,项目名称:go-ipfs,代码行数:62,代码来源:handler.go


注:本文中的github.com/ipfs/go-ipfs/commands.Response.Length方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。