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@@ -0,0 +1,142 @@
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+package httpClient
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+
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+import (
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+ "context"
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+ "encoding/json"
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+ "errors"
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+ "eta/eta_mini_crm_ht/utils"
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+ "fmt"
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+ "io"
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+ "net/http"
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+ "strings"
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+ "time"
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+)
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+
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+type HttpClient struct {
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+ *http.Client
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+ maxRetries int
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+ retryDelayFunc RetryDelayFunc
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+}
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+
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+// NewClient 构造函数,其中 delayFunc 参数是可选的
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+func NewClient(timeout time.Duration, maxRetries int, delayFunc ...RetryDelayFunc) *HttpClient {
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+ var df RetryDelayFunc
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+ if len(delayFunc) > 0 {
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+ df = delayFunc[0]
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+ } else {
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+ df = defaultRetryDelayFunc
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+ }
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+ return &HttpClient{
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+ Client: &http.Client{Timeout: timeout},
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+ maxRetries: maxRetries,
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+ retryDelayFunc: df,
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+ }
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+}
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+
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+func DefaultClient() *HttpClient {
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+ return NewClient(time.Second*10, 3)
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+}
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+func defaultRetryDelayFunc(attempt int) time.Duration {
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+ delay := time.Duration(attempt) * time.Second
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+ if attempt > 0 {
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+ delay *= 2
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+ }
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+ return delay
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+}
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+
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+type RetryDelayFunc func(attempt int) time.Duration
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+
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+func retryErr(err error) bool {
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+ return errors.Is(err, context.DeadlineExceeded) || errors.Is(err, context.Canceled)
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+}
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+
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+// DoWithRetry 发送带有重试机制的HTTP请求,允许用户自定义重试延迟逻辑
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+func (hc *HttpClient) DoWithRetry(ctx context.Context, req *http.Request) (resp *http.Response, err error) {
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+ attempt := 0
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+ for {
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+ resp, err = hc.Do(req.WithContext(ctx))
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+ if err != nil && retryErr(err) {
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+ if attempt >= hc.maxRetries {
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+
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+ return nil, fmt.Errorf("请求失败: %w", err)
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+ }
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+ attempt++
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+ delay := hc.retryDelayFunc(attempt)
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+ time.Sleep(delay)
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+ continue
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+ }
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+ return
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+ }
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+}
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+
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+func (hc *HttpClient) Post(url string, data interface{}) (resp *http.Response, err error) {
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+ dataStr, err := json.Marshal(data)
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+ if err != nil {
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+ utils.FileLog.Error("请求data json序列化失败,err:" + err.Error())
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+ }
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+ body := io.NopCloser(strings.NewReader(string(dataStr)))
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+ req, err := http.NewRequest(http.MethodPost, url, body)
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+ req.Header.Set("Content-Type", "application/json")
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+ if err != nil {
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+ utils.FileLog.Error("创建POST请求失败: %v", err)
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+ }
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+ resp, err = hc.DoWithRetry(req.Context(), req)
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+ if err == nil {
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+ code := resp.StatusCode
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+ if code != 200 {
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+ utils.FileLog.Error("请求错误应答,状态码:%d", code)
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+ errMsg := fmt.Sprintf("请求状态码异常,StatusCode:[%d]", code)
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+ respBody, respErr := io.ReadAll(resp.Body)
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+ if respErr != nil {
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+ utils.FileLog.Error("读取body失败,err:%v", err)
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+ err = errors.New(errMsg)
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+ return
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+ }
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+ utils.FileLog.Error("请求错误应答,body:%s", string(respBody))
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+ errMsg = fmt.Sprintf("%s,body:%s", errMsg, string(respBody))
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+ err = errors.New(errMsg)
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+ return
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+ }
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+ } else {
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+ utils.FileLog.Error("未知的应答错误,获取第三方授权信息失败")
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+ }
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+ return
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+}
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+func (hc *HttpClient) PostWithAuth(url string, data interface{}, token string) (resp *http.Response, err error) {
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+ dataStr, err := json.Marshal(data)
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+ if err != nil {
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+ utils.FileLog.Error("请求data json序列化失败,err:" + err.Error())
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+ }
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+ body := io.NopCloser(strings.NewReader(string(dataStr)))
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+ req, err := http.NewRequest(http.MethodPost, url, body)
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+ req.Header.Set("Content-Type", "application/json")
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+ req.Header.Set("Authorization", token)
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+ if err != nil {
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+ utils.FileLog.Error("创建POST请求失败: %v", err)
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+ }
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+ resp, err = hc.DoWithRetry(req.Context(), req)
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+ code := resp.StatusCode
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+ if code != 200 {
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+ utils.FileLog.Error("请求错误应答,状态码:%d", code)
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+ errMsg := fmt.Sprintf("请求状态码异常,StatusCode:[%d]", code)
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+ respBody, respErr := io.ReadAll(resp.Body)
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+ if respErr != nil {
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+ utils.FileLog.Error("读取body失败,err:%v", err)
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+ err = errors.New(errMsg)
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+ return
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+ }
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+ utils.FileLog.Error("请求错误应答,body:%s", string(respBody))
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+ errMsg = fmt.Sprintf("%s,body:%s", errMsg, string(respBody))
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+ err = errors.New(errMsg)
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+ return
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+ }
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+ return
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+}
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+func (hc *HttpClient) Get(url string) (resp *http.Response, err error) {
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+ req, err := http.NewRequestWithContext(context.Background(), http.MethodGet, url, nil)
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+ if err != nil {
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+ utils.FileLog.Error("创建请求失败: %v", err)
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+ }
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+ resp, err = hc.DoWithRetry(req.Context(), req)
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+ return
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+}
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