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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,248 @@ | ||
| package internal | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "crypto/tls" | ||
| "fmt" | ||
| "io/ioutil" | ||
| "net" | ||
| "net/http" | ||
| "strconv" | ||
| "strings" | ||
| "time" | ||
|
|
||
| "golang.org/x/net/http2" | ||
|
|
||
| "github.com/valyala/fasthttp" | ||
| ) | ||
|
|
||
| type client interface { | ||
| do(int) (int, time.Duration, error) | ||
| } | ||
|
|
||
| type clientDoer interface { | ||
| Do(req *fasthttp.Request, resp *fasthttp.Response) error | ||
| } | ||
|
|
||
| type clientConfig struct { | ||
| method string | ||
| url string | ||
| headers Headers | ||
| host string | ||
| stream bool | ||
| body []byte | ||
| http2 bool | ||
| maxConns int | ||
| timeout time.Duration | ||
| tlsConfig *tls.Config | ||
| disableKeepAlives bool | ||
| throughput *int64 | ||
| } | ||
|
|
||
| type fasthttpClient struct { | ||
| doer clientDoer | ||
| reqs []*fasthttp.Request | ||
| resps []*fasthttp.Response | ||
| readers []*bytes.Reader | ||
| body []byte | ||
| } | ||
|
|
||
| func newFasthttpClient(cc clientConfig) (client, error) { | ||
| c := &fasthttpClient{ | ||
| reqs: make([]*fasthttp.Request, cc.maxConns, cc.maxConns), | ||
| resps: make([]*fasthttp.Response, cc.maxConns, cc.maxConns), | ||
| readers: make([]*bytes.Reader, cc.maxConns, cc.maxConns), | ||
| body: cc.body, | ||
| } | ||
|
|
||
| isTLS, addr, err := getIsTLSAndAddr(cc.url) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| for i := 0; i < cc.maxConns; i++ { | ||
| req := fasthttp.AcquireRequest() | ||
| req.Header.SetMethod(cc.method) | ||
| req.SetRequestURI(cc.url) | ||
| cc.headers.WriteToFasthttp(req) | ||
| if cc.stream { | ||
| c.readers[i] = bytes.NewReader(nil) | ||
| } else { | ||
| // set constant body | ||
| req.SetBody(cc.body) | ||
| } | ||
| if cc.disableKeepAlives { | ||
| req.Header.ConnectionClose() | ||
| } | ||
| if cc.host != "" { | ||
| req.URI().SetHost(cc.host) | ||
| } | ||
| c.reqs[i] = req | ||
| c.resps[i] = fasthttp.AcquireResponse() | ||
| } | ||
|
|
||
| if cc.disableKeepAlives { | ||
| c.doer = &fasthttp.HostClient{ | ||
| Addr: addr, | ||
| NoDefaultUserAgentHeader: false, | ||
| Dial: fasthttpDialFunc(cc.throughput, cc.timeout), | ||
| DialDualStack: false, | ||
| IsTLS: isTLS, | ||
| TLSConfig: cc.tlsConfig, | ||
| MaxConns: cc.maxConns, | ||
| ReadTimeout: cc.timeout, | ||
| DisableHeaderNamesNormalizing: true, | ||
| DisablePathNormalizing: true, | ||
| } | ||
| } else { | ||
| c.doer = &fasthttp.PipelineClient{ | ||
| Addr: addr, | ||
| MaxConns: cc.maxConns, | ||
| Dial: fasthttpDialFunc(cc.throughput, cc.timeout), | ||
| IsTLS: isTLS, | ||
| TLSConfig: cc.tlsConfig, | ||
| ReadTimeout: cc.timeout, | ||
| } | ||
| } | ||
|
|
||
| return c, nil | ||
| } | ||
|
|
||
| func (c *fasthttpClient) do(i int) (code int, latency time.Duration, err error) { | ||
| var ( | ||
| req = c.reqs[i] | ||
| resp = c.resps[i] | ||
| reader = c.readers[i] | ||
| ) | ||
|
|
||
| if reader != nil { | ||
| reader.Reset(c.body) | ||
| req.SetBodyStream(reader, -1) | ||
| } | ||
|
|
||
| start := time.Now() | ||
| if err = c.doer.Do(req, resp); err != nil { | ||
| return | ||
| } | ||
|
|
||
| code = resp.StatusCode() | ||
| latency = time.Since(start) | ||
|
|
||
| return | ||
| } | ||
|
|
||
| var ( | ||
| strHTTP = []byte("http") | ||
| strHTTPS = []byte("https") | ||
| ) | ||
|
|
||
| func getIsTLSAndAddr(url string) (isTLS bool, addr string, err error) { | ||
| req := fasthttp.AcquireRequest() | ||
| defer fasthttp.ReleaseRequest(req) | ||
| req.SetRequestURI(url) | ||
| uri := req.URI() | ||
| host := uri.Host() | ||
|
|
||
| scheme := uri.Scheme() | ||
| if bytes.Equal(scheme, strHTTPS) { | ||
| isTLS = true | ||
| } else if !bytes.Equal(scheme, strHTTP) { | ||
| err = fmt.Errorf("unsupported protocol %q. http and https are supported", scheme) | ||
| return | ||
| } | ||
|
|
||
| addr = addMissingPort(string(host), isTLS) | ||
|
|
||
| return | ||
| } | ||
|
|
||
| func addMissingPort(addr string, isTLS bool) string { | ||
| n := strings.Index(addr, ":") | ||
| if n >= 0 { | ||
| return addr | ||
| } | ||
| port := 80 | ||
| if isTLS { | ||
| port = 443 | ||
| } | ||
| return net.JoinHostPort(addr, strconv.Itoa(port)) | ||
| } | ||
|
|
||
| type httpClient struct { | ||
| client *http.Client | ||
| reqs []*http.Request | ||
| readers []*bytes.Reader | ||
| body []byte | ||
| } | ||
|
|
||
| func newHttpClient(cc clientConfig) (client, error) { | ||
| c := &httpClient{ | ||
| reqs: make([]*http.Request, 0, cc.maxConns), | ||
| readers: make([]*bytes.Reader, 0, cc.maxConns), | ||
| } | ||
|
|
||
| var err error | ||
|
|
||
| for i := 0; i < cc.maxConns; i++ { | ||
| if c.reqs[i], err = http.NewRequest(cc.method, cc.url, nil); err != nil { | ||
| return nil, fmt.Errorf("failed to new request: %w", err) | ||
| } | ||
| req := c.reqs[i] | ||
|
|
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| cc.headers.WriteToHttp(req) | ||
|
|
||
| if cc.host != "" { | ||
| req.Host = cc.host | ||
| } | ||
| } | ||
|
|
||
| transport := &http.Transport{ | ||
| TLSClientConfig: cc.tlsConfig, | ||
| MaxIdleConnsPerHost: cc.maxConns, | ||
| DisableKeepAlives: cc.disableKeepAlives, | ||
| } | ||
| transport.DialContext = httpDialContextFunc(cc.throughput) | ||
| if cc.http2 { | ||
| if err = http2.ConfigureTransport(transport); err != nil { | ||
| return nil, fmt.Errorf("failed to setup http2: %w", err) | ||
| } | ||
| } else { | ||
| transport.TLSNextProto = make( | ||
| map[string]func(authority string, c *tls.Conn) http.RoundTripper, | ||
| ) | ||
| } | ||
|
|
||
| c.client = &http.Client{ | ||
| Transport: transport, | ||
| Timeout: cc.timeout, | ||
| CheckRedirect: func(req *http.Request, via []*http.Request) error { | ||
| return http.ErrUseLastResponse | ||
| }, | ||
| } | ||
|
|
||
| return c, nil | ||
| } | ||
|
|
||
| func (c *httpClient) do(i int) (code int, latency time.Duration, err error) { | ||
| req := c.reqs[i] | ||
|
|
||
| reader := c.readers[i] | ||
| reader.Reset(c.body) | ||
| req.Body = ioutil.NopCloser(reader) | ||
|
|
||
| var resp *http.Response | ||
| start := time.Now() | ||
|
|
||
| if resp, err = c.client.Do(req); err != nil { | ||
| return | ||
| } | ||
|
|
||
| if err = resp.Body.Close(); err != nil { | ||
| return | ||
| } | ||
|
|
||
| code = resp.StatusCode | ||
| latency = time.Since(start) | ||
|
|
||
| return | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,70 @@ | ||
| package internal | ||
|
|
||
| import ( | ||
| "context" | ||
| "net" | ||
| "sync/atomic" | ||
| "time" | ||
|
|
||
| "github.com/valyala/fasthttp" | ||
| ) | ||
|
|
||
| // counterConn counts read bytes and written bytes | ||
| type counterConn struct { | ||
| net.Conn | ||
| n *int64 | ||
| } | ||
|
|
||
| func (cc *counterConn) Read(b []byte) (n int, err error) { | ||
| n, err = cc.Conn.Read(b) | ||
|
|
||
| if err == nil { | ||
| atomic.AddInt64(cc.n, int64(n)) | ||
| } | ||
|
|
||
| return | ||
| } | ||
|
|
||
| func (cc *counterConn) Write(b []byte) (n int, err error) { | ||
| n, err = cc.Conn.Write(b) | ||
|
|
||
| if err == nil { | ||
| atomic.AddInt64(cc.n, int64(n)) | ||
| } | ||
|
|
||
| return | ||
| } | ||
|
|
||
| var fasthttpDialFunc = func(throughput *int64, timeout time.Duration) func(string) (net.Conn, error) { | ||
| dialer := &fasthttp.TCPDialer{} | ||
| return func(address string) (net.Conn, error) { | ||
| conn, err := dialer.DialDualStackTimeout(address, timeout) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| cc := &counterConn{ | ||
| Conn: conn, | ||
| n: throughput, | ||
| } | ||
|
|
||
| return cc, nil | ||
| } | ||
| } | ||
|
|
||
| var httpDialContextFunc = func(throughput *int64) func(context.Context, string, string) (net.Conn, error) { | ||
| dialer := &net.Dialer{} | ||
| return func(ctx context.Context, network, address string) (net.Conn, error) { | ||
| conn, err := dialer.DialContext(ctx, network, address) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| cc := &counterConn{ | ||
| Conn: conn, | ||
| n: throughput, | ||
| } | ||
|
|
||
| return cc, nil | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,18 @@ | ||
| package internal | ||
|
|
||
| import ( | ||
| "sync" | ||
| ) | ||
|
|
||
| type errorMap sync.Map | ||
|
|
||
| func (e errorMap) add(err error) { | ||
| } | ||
|
|
||
| func (e errorMap) get(err error) uint64 { | ||
| return 0 | ||
| } | ||
|
|
||
| func (e errorMap) sum() uint64 { | ||
| return 0 | ||
| } |
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