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package http |
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import ( |
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"bytes" |
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"context" |
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"fmt" |
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"io" |
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"io/ioutil" |
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"net" |
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"net/http" |
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"net/url" |
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"runtime" |
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"strings" |
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"time" |
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"github.com/alibabacloud-go/debug/debug" |
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credentials_go "github.com/aliyun/credentials-go" |
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"github.com/aliyun/credentials-go/credentials/internal/utils" |
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) |
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var defaultUserAgent = fmt.Sprintf("AlibabaCloud (%s; %s) Golang/%s Credentials/%s TeaDSL/1", runtime.GOOS, runtime.GOARCH, strings.Trim(runtime.Version(), "go"), credentials_go.PACKAGE_VERSION) |
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type Request struct { |
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Method string // http request method |
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URL string // http url |
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Protocol string // http or https |
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Host string // http host |
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ReadTimeout time.Duration |
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ConnectTimeout time.Duration |
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Proxy string // http proxy |
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Form map[string]string // http form |
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Body []byte // request body for JSON or stream |
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Path string |
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Queries map[string]string |
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Headers map[string]string |
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} |
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func (req *Request) BuildRequestURL() string { |
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httpUrl := fmt.Sprintf("%s://%s%s", req.Protocol, req.Host, req.Path) |
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if req.URL != "" { |
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httpUrl = req.URL |
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} |
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querystring := utils.GetURLFormedMap(req.Queries) |
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if querystring != "" { |
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httpUrl = httpUrl + "?" + querystring |
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} |
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return fmt.Sprintf("%s %s", req.Method, httpUrl) |
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} |
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type Response struct { |
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StatusCode int |
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Headers map[string]string |
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Body []byte |
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} |
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var newRequest = http.NewRequest |
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type do func(req *http.Request) (*http.Response, error) |
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var hookDo = func(fn do) do { |
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return fn |
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} |
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var debuglog = debug.Init("credential") |
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func Do(req *Request) (res *Response, err error) { |
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querystring := utils.GetURLFormedMap(req.Queries) |
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// do request |
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httpUrl := fmt.Sprintf("%s://%s%s?%s", req.Protocol, req.Host, req.Path, querystring) |
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if req.URL != "" { |
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httpUrl = req.URL |
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} |
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var body io.Reader |
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if req.Method == "GET" { |
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body = strings.NewReader("") |
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} else if req.Body != nil { |
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body = bytes.NewReader(req.Body) |
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} else { |
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body = strings.NewReader(utils.GetURLFormedMap(req.Form)) |
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} |
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httpRequest, err := newRequest(req.Method, httpUrl, body) |
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if err != nil { |
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return |
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} |
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httpRequest.Header["User-Agent"] = []string{defaultUserAgent} |
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if req.Form != nil { |
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httpRequest.Header["Content-Type"] = []string{"application/x-www-form-urlencoded"} |
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} |
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for key, value := range req.Headers { |
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if value != "" { |
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debuglog("> %s: %s", key, value) |
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httpRequest.Header.Set(key, value) |
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} |
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} |
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httpClient := &http.Client{} |
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if req.ReadTimeout != 0 { |
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httpClient.Timeout = req.ReadTimeout + req.ConnectTimeout |
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} |
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transport := http.DefaultTransport.(*http.Transport).Clone() |
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if req.Proxy != "" { |
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var proxy *url.URL |
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proxy, err = url.Parse(req.Proxy) |
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if err != nil { |
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return |
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} |
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transport.Proxy = http.ProxyURL(proxy) |
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} |
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if req.ConnectTimeout != 0 { |
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transport.DialContext = func(ctx context.Context, network, address string) (net.Conn, error) { |
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return (&net.Dialer{ |
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Timeout: req.ConnectTimeout, |
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DualStack: true, |
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}).DialContext(ctx, network, address) |
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} |
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} |
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httpClient.Transport = transport |
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httpResponse, err := hookDo(httpClient.Do)(httpRequest) |
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if err != nil { |
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return |
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} |
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defer httpResponse.Body.Close() |
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responseBody, err := ioutil.ReadAll(httpResponse.Body) |
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if err != nil { |
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return |
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} |
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res = &Response{ |
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StatusCode: httpResponse.StatusCode, |
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Headers: make(map[string]string), |
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Body: responseBody, |
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} |
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for key, v := range httpResponse.Header { |
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res.Headers[key] = v[0] |
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} |
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return |
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} |
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aliyun /
credentials-go
