refine chart clint http response

Chart client eats the http error if not status ok, after refactor, the
real http response will be catched in core api.

Signed-off-by: wang yan <wangyan@vmware.com>

src/chartserver/client.go

@@ -3,6 +3,8 @@ package chartserver
 import (
 	"errors"
 	"fmt"
+	commonhttp "github.com/goharbor/harbor/src/common/http"
+	hlog "github.com/goharbor/harbor/src/common/utils/log"
 	"io"
 	"io/ioutil"
 	"net/http"
@@ -45,7 +47,7 @@ func NewChartClient(credentail *Credential) *ChartClient { // Create http client
 
 // GetContent get the bytes from the specified url
 func (cc *ChartClient) GetContent(addr string) ([]byte, error) {
-	response, err := cc.sendRequest(addr, http.MethodGet, nil, []int{http.StatusOK})
+	response, err := cc.sendRequest(addr, http.MethodGet, nil)
 	if err != nil {
 		return nil, err
 	}
@@ -56,17 +58,48 @@ func (cc *ChartClient) GetContent(addr string) ([]byte, error) {
 	}
 	defer response.Body.Close()
 
+	if response.StatusCode != http.StatusOK {
+		text, err := extractError(content)
+		if err != nil {
+			return nil, err
+		}
+		return nil, &commonhttp.Error{
+			Code:    response.StatusCode,
+			Message: text,
+		}
+	}
 	return content, nil
 }
 
 // DeleteContent sends deleting request to the addr to delete content
 func (cc *ChartClient) DeleteContent(addr string) error {
-	_, err := cc.sendRequest(addr, http.MethodDelete, nil, []int{http.StatusOK})
+	response, err := cc.sendRequest(addr, http.MethodDelete, nil)
-	return err
+	if err != nil {
+		return err
+	}
+
+	content, err := ioutil.ReadAll(response.Body)
+	if err != nil {
+		return err
+	}
+	defer response.Body.Close()
+
+	if response.StatusCode != http.StatusOK {
+		text, err := extractError(content)
+		if err != nil {
+			return err
+		}
+		return &commonhttp.Error{
+			Code:    response.StatusCode,
+			Message: text,
+		}
+	}
+
+	return nil
 }
 
 // sendRequest sends requests to the addr with the specified spec
-func (cc *ChartClient) sendRequest(addr string, method string, body io.Reader, expectedCodes []int) (*http.Response, error) {
+func (cc *ChartClient) sendRequest(addr string, method string, body io.Reader) (*http.Response, error) {
 	if len(strings.TrimSpace(addr)) == 0 {
 		return nil, errors.New("empty url is not allowed")
 	}
@@ -88,30 +121,9 @@ func (cc *ChartClient) sendRequest(addr string, method string, body io.Reader, e
 
 	response, err := cc.httpClient.Do(request)
 	if err != nil {
+		hlog.Errorf("%s '%s' failed with error: %s", method, fullURI.Path, err)
 		return nil, err
 	}
 
-	isExpectedStatusCode := false
-	for _, eCode := range expectedCodes {
-		if eCode == response.StatusCode {
-			isExpectedStatusCode = true
-			break
-		}
-	}
-
-	if !isExpectedStatusCode {
-		content, err := ioutil.ReadAll(response.Body)
-		if err != nil {
-			return nil, err
-		}
-		defer response.Body.Close()
-
-		if err := extractError(content); err != nil {
-			return nil, err
-		}
-
-		return nil, fmt.Errorf("%s '%s' failed with error: %s", method, fullURI.Path, content)
-	}
-
 	return response, nil
 }

src/chartserver/utils.go

@@ -16,22 +16,22 @@ const (
 
 // Extract error object '{"error": "****---***"}' from the content if existing
 // nil error will be returned if it does exist
-func extractError(content []byte) error {
+func extractError(content []byte) (text string, err error) {
 	if len(content) == 0 {
-		return nil
+		return "", nil
 	}
 
 	errorObj := make(map[string]string)
-	err := json.Unmarshal(content, &errorObj)
+	err = json.Unmarshal(content, &errorObj)
 	if err != nil {
-		return nil
+		return "", err
 	}
 
 	if errText, ok := errorObj["error"]; ok {
-		return errors.New(errText)
+		return errText, nil
 	}
 
-	return nil
+	return "", nil
 }
 
 // Parse the redis configuration to the beego cache pattern

src/core/api/chart_repository.go

@@ -186,7 +186,7 @@ func (cra *ChartRepositoryAPI) ListCharts() {
 
 	charts, err := chartController.ListCharts(cra.namespace)
 	if err != nil {
-		cra.SendInternalServerError(err)
+		cra.ParseAndHandleError("fail to list charts", err)
 		return
 	}
 
@@ -204,7 +204,7 @@ func (cra *ChartRepositoryAPI) ListChartVersions() {
 
 	versions, err := chartController.GetChart(cra.namespace, chartName)
 	if err != nil {
-		cra.SendInternalServerError(err)
+		cra.ParseAndHandleError("fail to get chart", err)
 		return
 	}
 
@@ -234,7 +234,7 @@ func (cra *ChartRepositoryAPI) GetChartVersion() {
 
 	chartVersion, err := chartController.GetChartVersionDetails(cra.namespace, chartName, version)
 	if err != nil {
-		cra.SendInternalServerError(err)
+		cra.ParseAndHandleError("fail to get chart version", err)
 		return
 	}
 
@@ -267,7 +267,7 @@ func (cra *ChartRepositoryAPI) DeleteChartVersion() {
 	}
 
 	if err := chartController.DeleteChartVersion(cra.namespace, chartName, version); err != nil {
-		cra.SendInternalServerError(err)
+		cra.ParseAndHandleError("fail to delete chart version", err)
 		return
 	}
 }
@@ -360,7 +360,7 @@ func (cra *ChartRepositoryAPI) DeleteChart() {
 	// Remove labels from all the deleting chart versions under the chart
 	chartVersions, err := chartController.GetChart(cra.namespace, chartName)
 	if err != nil {
-		cra.SendInternalServerError(err)
+		cra.ParseAndHandleError("fail to get chart", err)
 		return
 	}