Update to use uaa refresh tokens

In [#150153665], the go-pivnet code vendored in pivnet-resource was
directly modified, instead of updating go-pivnet and re-vendoring the
library.

This commit makes the changes corresponding to that story, and updates
the corresponding tests. This way, when pivnet-resource udpates its
version of go-pivnet, the changes are not reverted.

[#151761519]

Signed-off-by: Debbie Chen <[email protected]>

Author: Tim Kopp

auth.go

@@ -46,10 +46,10 @@ func (e AuthService) Check() (bool, error) {
 	}
 }
 
-func (e AuthService) FetchUAAToken(username, password string) (UAATokenResponse, error) {
+func (e AuthService) FetchUAAToken(refresh_token string) (UAATokenResponse, error) {
 	url := "/authentication"
 
-	body := AuthBody{Username: username, Password: password}
+	body := AuthBody{RefreshToken: refresh_token}
 	b, err := json.Marshal(body)
 	if err != nil {
 		return UAATokenResponse{}, err
@@ -79,6 +79,5 @@ func (e AuthService) FetchUAAToken(username, password string) (UAATokenResponse,
 }
 
 type AuthBody struct {
-	Username string `json:"username"`
-	Password string `json:"password"`
+	RefreshToken string `json:"refresh_token"`
 }

auth_test.go

@@ -21,8 +21,7 @@ var _ = Describe("PivnetClient - Auth", func() {
 		apiAddress string
 		userAgent  string
 
-		username string
-		password string
+		refresh_token string
 
 		newClientConfig pivnet.ClientConfig
 		fakeLogger      logger.Logger
@@ -137,13 +136,11 @@ var _ = Describe("PivnetClient - Auth", func() {
 
 	Describe("FetchUAAToken", func() {
 		It("returns the UAA token", func() {
-			username = "some-username"
-			password = "some-password"
+			refresh_token = "some-refresh-token"
 
 			expectedRequestBody := fmt.Sprintf(
-				`{"username":"%s","password":"%s"}`,
-				username,
-				password,
+				`{"refresh_token":"%s"}`,
+				refresh_token,
 			)
 
 			response := pivnet.UAATokenResponse{
@@ -161,20 +158,18 @@ var _ = Describe("PivnetClient - Auth", func() {
 				),
 			)
 
-			tokenResponse, err := client.Auth.FetchUAAToken(username, password)
+			tokenResponse, err := client.Auth.FetchUAAToken(refresh_token)
 			Expect(err).NotTo(HaveOccurred())
 			Expect(tokenResponse.Token).To(Equal("some-token"))
 		})
 
 		Context("When Pivnet returns a 401", func() {
 			It("returns an error", func() {
-				username = "some-username"
-				password = "some-password"
+				refresh_token = "some-refresh-token"
 
 				expectedRequestBody := fmt.Sprintf(
-					`{"username":"%s","password":"%s"}`,
-					username,
-					password,
+					`{"refresh_token":"%s"}`,
+					refresh_token,
 				)
 
 				server.AppendHandlers(
@@ -188,7 +183,7 @@ var _ = Describe("PivnetClient - Auth", func() {
 					),
 				)
 
-				_, err := client.Auth.FetchUAAToken(username, password)
+				_, err := client.Auth.FetchUAAToken(refresh_token)
 				Expect(err).To(HaveOccurred())
 			})
 		})