Added Email of Keystone to Identity (#1681)

* Added Email of Keystone to Identity

After the successful login to keystone, the Email of the logged in user
is fetch from keystone and provided to `identity.Email`.

This is useful for upstream software that uses the Email as the primary
identification.

* Removed unnecessary code from getUsers

* Changed creation of userResponse in keystone

* Fixing linter error

Co-authored-by: Christoph Glaubitz <christoph.glaubitz@innovo-cloud.de>

connector/keystone/keystone.go

@@ -95,6 +95,14 @@ type groupsResponse struct {
 	Groups []group `json:"groups"`
 }
 
+type userResponse struct {
+	User struct {
+		Name  string `json:"name"`
+		Email string `json:"email"`
+		ID    string `json:"id"`
+	} `json:"user"`
+}
+
 var (
 	_ connector.PasswordConnector = &conn{}
 	_ connector.RefreshConnector  = &conn{}
@@ -143,6 +151,16 @@ func (p *conn) Login(ctx context.Context, scopes connector.Scopes, username, pas
 	}
 	identity.Username = username
 	identity.UserID = tokenResp.Token.User.ID
+
+	user, err := p.getUser(ctx, tokenResp.Token.User.ID, token)
+	if err != nil {
+		return identity, false, err
+	}
+	if user.User.Email != "" {
+		identity.Email = user.User.Email
+		identity.EmailVerified = true
+	}
+
 	return identity, true, nil
 }
 
@@ -216,26 +234,43 @@ func (p *conn) getAdminToken(ctx context.Context) (string, error) {
 }
 
 func (p *conn) checkIfUserExists(ctx context.Context, userID string, token string) (bool, error) {
+	user, err := p.getUser(ctx, userID, token)
+	return user != nil, err
+}
+
+func (p *conn) getUser(ctx context.Context, userID string, token string) (*userResponse, error) {
 	// https://developer.openstack.org/api-ref/identity/v3/#show-user-details
 	userURL := p.Host + "/v3/users/" + userID
 	client := &http.Client{}
 	req, err := http.NewRequest("GET", userURL, nil)
 	if err != nil {
-		return false, err
+		return nil, err
 	}
 
 	req.Header.Set("X-Auth-Token", token)
 	req = req.WithContext(ctx)
 	resp, err := client.Do(req)
 	if err != nil {
-		return false, err
+		return nil, err
 	}
 	defer resp.Body.Close()
 
-	if resp.StatusCode == 200 {
-		return true, nil
+	if resp.StatusCode != 200 {
+		return nil, err
+	}
+
+	data, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		return nil, err
 	}
-	return false, err
+
+	user := userResponse{}
+	err = json.Unmarshal(data, &user)
+	if err != nil {
+		return nil, err
+	}
+
+	return &user, nil
 }
 
 func (p *conn) getUserGroups(ctx context.Context, userID string, token string) ([]string, error) {

connector/keystone/keystone_test.go

@@ -35,12 +35,6 @@ var (
 	groupsURL        = ""
 )
 
-type userResponse struct {
-	User struct {
-		ID string `json:"id"`
-	} `json:"user"`
-}
-
 type groupResponse struct {
 	Group struct {
 		ID string `json:"id"`
@@ -144,7 +138,7 @@ func createUser(t *testing.T, token, userName, userEmail, userPass string) strin
 }
 
 // delete group or user
-func delete(t *testing.T, token, id, uri string) {
+func deleteResource(t *testing.T, token, id, uri string) {
 	t.Helper()
 	client := &http.Client{}
 
@@ -246,20 +240,86 @@ func TestIncorrectCredentialsLogin(t *testing.T) {
 func TestValidUserLogin(t *testing.T) {
 	setupVariables(t)
 	token, _ := getAdminToken(t, adminUser, adminPass)
-	userID := createUser(t, token, testUser, testEmail, testPass)
-	c := conn{Host: keystoneURL, Domain: testDomain,
-		AdminUsername: adminUser, AdminPassword: adminPass}
-	s := connector.Scopes{OfflineAccess: true, Groups: true}
-	identity, validPW, err := c.Login(context.Background(), s, testUser, testPass)
-	if err != nil {
-		t.Fatal(err.Error())
+
+	type tUser struct {
+		username string
+		domain   string
+		email    string
+		password string
+	}
+
+	type expect struct {
+		username      string
+		email         string
+		verifiedEmail bool
+	}
+
+	var tests = []struct {
+		name     string
+		input    tUser
+		expected expect
+	}{
+		{
+			name: "test with email address",
+			input: tUser{
+				username: testUser,
+				domain:   testDomain,
+				email:    testEmail,
+				password: testPass,
+			},
+			expected: expect{
+				username:      testUser,
+				email:         testEmail,
+				verifiedEmail: true,
+			},
+		},
+		{
+			name: "test without email address",
+			input: tUser{
+				username: testUser,
+				domain:   testDomain,
+				email:    "",
+				password: testPass,
+			},
+			expected: expect{
+				username:      testUser,
+				email:         "",
+				verifiedEmail: false,
+			},
+		},
 	}
-	t.Log(identity)
 
-	if !validPW {
-		t.Fatal("Valid password was not accepted")
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			userID := createUser(t, token, tt.input.username, tt.input.email, tt.input.password)
+			defer deleteResource(t, token, userID, usersURL)
+
+			c := conn{Host: keystoneURL, Domain: tt.input.domain,
+				AdminUsername: adminUser, AdminPassword: adminPass}
+			s := connector.Scopes{OfflineAccess: true, Groups: true}
+			identity, validPW, err := c.Login(context.Background(), s, tt.input.username, tt.input.password)
+			if err != nil {
+				t.Fatal(err.Error())
+			}
+			t.Log(identity)
+			if identity.Username != tt.expected.username {
+				t.Fatalf("Invalid user. Got: %v. Wanted: %v", identity.Username, tt.expected.username)
+			}
+			if identity.UserID == "" {
+				t.Fatalf("Didn't get any UserID back")
+			}
+			if identity.Email != tt.expected.email {
+				t.Fatalf("Invalid email. Got: %v. Wanted: %v", identity.Email, tt.expected.email)
+			}
+			if identity.EmailVerified != tt.expected.verifiedEmail {
+				t.Fatalf("Invalid verifiedEmail. Got: %v. Wanted: %v", identity.EmailVerified, tt.expected.verifiedEmail)
+			}
+
+			if !validPW {
+				t.Fatal("Valid password was not accepted")
+			}
+		})
 	}
-	delete(t, token, userID, usersURL)
 }
 
 func TestUseRefreshToken(t *testing.T) {
@@ -267,6 +327,7 @@ func TestUseRefreshToken(t *testing.T) {
 	token, adminID := getAdminToken(t, adminUser, adminPass)
 	groupID := createGroup(t, token, "Test group description", testGroup)
 	addUserToGroup(t, token, groupID, adminID)
+	defer deleteResource(t, token, groupID, groupsURL)
 
 	c := conn{Host: keystoneURL, Domain: testDomain,
 		AdminUsername: adminUser, AdminPassword: adminPass}
@@ -282,8 +343,6 @@ func TestUseRefreshToken(t *testing.T) {
 		t.Fatal(err.Error())
 	}
 
-	delete(t, token, groupID, groupsURL)
-
 	expectEquals(t, 1, len(identityRefresh.Groups))
 	expectEquals(t, testGroup, identityRefresh.Groups[0])
 }
@@ -307,7 +366,7 @@ func TestUseRefreshTokenUserDeleted(t *testing.T) {
 		t.Fatal(err.Error())
 	}
 
-	delete(t, token, userID, usersURL)
+	deleteResource(t, token, userID, usersURL)
 	_, err = c.Refresh(context.Background(), s, identityLogin)
 
 	if !strings.Contains(err.Error(), "does not exist") {
@@ -319,6 +378,7 @@ func TestUseRefreshTokenGroupsChanged(t *testing.T) {
 	setupVariables(t)
 	token, _ := getAdminToken(t, adminUser, adminPass)
 	userID := createUser(t, token, testUser, testEmail, testPass)
+	defer deleteResource(t, token, userID, usersURL)
 
 	c := conn{Host: keystoneURL, Domain: testDomain,
 		AdminUsername: adminUser, AdminPassword: adminPass}
@@ -338,15 +398,13 @@ func TestUseRefreshTokenGroupsChanged(t *testing.T) {
 
 	groupID := createGroup(t, token, "Test group", testGroup)
 	addUserToGroup(t, token, groupID, userID)
+	defer deleteResource(t, token, groupID, groupsURL)
 
 	identityRefresh, err = c.Refresh(context.Background(), s, identityLogin)
 	if err != nil {
 		t.Fatal(err.Error())
 	}
 
-	delete(t, token, groupID, groupsURL)
-	delete(t, token, userID, usersURL)
-
 	expectEquals(t, 1, len(identityRefresh.Groups))
 }
 
@@ -354,6 +412,7 @@ func TestNoGroupsInScope(t *testing.T) {
 	setupVariables(t)
 	token, _ := getAdminToken(t, adminUser, adminPass)
 	userID := createUser(t, token, testUser, testEmail, testPass)
+	defer deleteResource(t, token, userID, usersURL)
 
 	c := conn{Host: keystoneURL, Domain: testDomain,
 		AdminUsername: adminUser, AdminPassword: adminPass}
@@ -361,6 +420,7 @@ func TestNoGroupsInScope(t *testing.T) {
 
 	groupID := createGroup(t, token, "Test group", testGroup)
 	addUserToGroup(t, token, groupID, userID)
+	defer deleteResource(t, token, groupID, groupsURL)
 
 	identityLogin, _, err := c.Login(context.Background(), s, testUser, testPass)
 	if err != nil {
@@ -373,9 +433,6 @@ func TestNoGroupsInScope(t *testing.T) {
 		t.Fatal(err.Error())
 	}
 	expectEquals(t, 0, len(identityRefresh.Groups))
-
-	delete(t, token, groupID, groupsURL)
-	delete(t, token, userID, usersURL)
 }
 
 func setupVariables(t *testing.T) {