remove redundant logs & add unit test

weed/iamapi/iamapi_management_handlers.go

@@ -394,19 +394,15 @@ func handleImplicitUsername(r *http.Request, values url.Values) {
 	if len(s) < 2 {
 		return
 	}
-	glog.V(4).Infof("First strip: %v", s)
 	s = strings.Split(s[1], ",")
 	if len(s) < 2 {
 		return
 	}
-	glog.V(4).Infof("Second strip: %v", s)
 	s = strings.Split(s[0], "/")
 	if len(s) < 5 {
 		return
 	}
-	glog.V(4).Infof("Third strip: %v", s)
 	userName := s[2]
-	glog.V(4).Infof("UserName: %v", userName)
 	values.Set("UserName", userName)
 }
 

weed/iamapi/iamapi_test.go

@@ -4,6 +4,7 @@ import (
 	"encoding/xml"
 	"net/http"
 	"net/http/httptest"
+	"net/url"
 	"testing"
 
 	"github.com/aws/aws-sdk-go/aws"
@@ -192,3 +193,24 @@ func executeRequest(req *http.Request, v interface{}) (*httptest.ResponseRecorde
 	apiRouter.ServeHTTP(rr, req)
 	return rr, xml.Unmarshal(rr.Body.Bytes(), &v)
 }
+
+func TestHandleImplicitUsername(t *testing.T) {
+	var tests = []struct {
+		r        *http.Request
+		values   url.Values
+		userName string
+	}{
+		{&http.Request{}, url.Values{}, ""},
+		{&http.Request{Header: http.Header{"Authorization": []string{"AWS4-HMAC-SHA256 Credential=197FSAQ7HHTA48X64O3A/20220420/test1/iam/aws4_request, SignedHeaders=content-type;host;x-amz-date, Signature=6757dc6b3d7534d67e17842760310e99ee695408497f6edc4fdb84770c252dc8"}}}, url.Values{}, "test1"},
+		{&http.Request{Header: http.Header{"Authorization": []string{"AWS4-HMAC-SHA256 =197FSAQ7HHTA48X64O3A/20220420/test1/iam/aws4_request, SignedHeaders=content-type;host;x-amz-date, Signature=6757dc6b3d7534d67e17842760310e99ee695408497f6edc4fdb84770c252dc8"}}}, url.Values{}, ""},
+		{&http.Request{Header: http.Header{"Authorization": []string{"AWS4-HMAC-SHA256 Credential=197FSAQ7HHTA48X64O3A/20220420/test1/iam/aws4_request SignedHeaders=content-type;host;x-amz-date Signature=6757dc6b3d7534d67e17842760310e99ee695408497f6edc4fdb84770c252dc8"}}}, url.Values{}, ""},
+		{&http.Request{Header: http.Header{"Authorization": []string{"AWS4-HMAC-SHA256 Credential=197FSAQ7HHTA48X64O3A/20220420/test1/iam, SignedHeaders=content-type;host;x-amz-date, Signature=6757dc6b3d7534d67e17842760310e99ee695408497f6edc4fdb84770c252dc8"}}}, url.Values{}, ""},
+	}
+
+	for i, test := range tests {
+		handleImplicitUsername(test.r, test.values)
+		if un := test.values.Get("UserName"); un != test.userName {
+			t.Errorf("No.%d: Got: %v, Expected: %v", i, un, test.userName)
+		}
+	}
+}