Add struct field for storing upstream access token in downstream session

internal/fositestorage/accesstoken/accesstoken_test.go

@@ -53,7 +53,7 @@ func TestAccessTokenStorage(t *testing.T) {
 				},
 			},
 			Data: map[string][]byte{
-				"pinniped-storage-data":    []byte(`{"request":{"id":"abcd-1","requestedAt":"0001-01-01T00:00:00Z","client":{"id":"pinny","redirect_uris":null,"grant_types":null,"response_types":null,"scopes":null,"audience":null,"public":true,"jwks_uri":"where","jwks":null,"token_endpoint_auth_method":"something","request_uris":null,"request_object_signing_alg":"","token_endpoint_auth_signing_alg":""},"scopes":null,"grantedScopes":null,"form":{"key":["val"]},"session":{"fosite":{"Claims":null,"Headers":null,"ExpiresAt":null,"Username":"snorlax","Subject":"panda"},"custom":{"providerUID":"fake-provider-uid","providerName":"fake-provider-name","providerType":"fake-provider-type","oidc":{"upstreamRefreshToken":"fake-upstream-refresh-token"}}},"requestedAudience":null,"grantedAudience":null},"version":"2"}`),
+				"pinniped-storage-data":    []byte(`{"request":{"id":"abcd-1","requestedAt":"0001-01-01T00:00:00Z","client":{"id":"pinny","redirect_uris":null,"grant_types":null,"response_types":null,"scopes":null,"audience":null,"public":true,"jwks_uri":"where","jwks":null,"token_endpoint_auth_method":"something","request_uris":null,"request_object_signing_alg":"","token_endpoint_auth_signing_alg":""},"scopes":null,"grantedScopes":null,"form":{"key":["val"]},"session":{"fosite":{"Claims":null,"Headers":null,"ExpiresAt":null,"Username":"snorlax","Subject":"panda"},"custom":{"providerUID":"fake-provider-uid","providerName":"fake-provider-name","providerType":"fake-provider-type","oidc":{"upstreamRefreshToken":"fake-upstream-refresh-token","upstreamAccessToken":""}}},"requestedAudience":null,"grantedAudience":null},"version":"2"}`),
 				"pinniped-storage-version": []byte("1"),
 			},
 			Type: "storage.pinniped.dev/access-token",
@@ -122,7 +122,7 @@ func TestAccessTokenStorageRevocation(t *testing.T) {
 				},
 			},
 			Data: map[string][]byte{
-				"pinniped-storage-data":    []byte(`{"request":{"id":"abcd-1","requestedAt":"0001-01-01T00:00:00Z","client":{"id":"pinny","redirect_uris":null,"grant_types":null,"response_types":null,"scopes":null,"audience":null,"public":true,"jwks_uri":"where","jwks":null,"token_endpoint_auth_method":"something","request_uris":null,"request_object_signing_alg":"","token_endpoint_auth_signing_alg":""},"scopes":null,"grantedScopes":null,"form":{"key":["val"]},"session":{"fosite":{"Claims":null,"Headers":null,"ExpiresAt":null,"Username":"snorlax","Subject":"panda"},"custom":{"providerUID":"fake-provider-uid","providerName":"fake-provider-name","providerType":"fake-provider-type","oidc":{"upstreamRefreshToken":"fake-upstream-refresh-token"}}},"requestedAudience":null,"grantedAudience":null},"version":"2"}`),
+				"pinniped-storage-data":    []byte(`{"request":{"id":"abcd-1","requestedAt":"0001-01-01T00:00:00Z","client":{"id":"pinny","redirect_uris":null,"grant_types":null,"response_types":null,"scopes":null,"audience":null,"public":true,"jwks_uri":"where","jwks":null,"token_endpoint_auth_method":"something","request_uris":null,"request_object_signing_alg":"","token_endpoint_auth_signing_alg":""},"scopes":null,"grantedScopes":null,"form":{"key":["val"]},"session":{"fosite":{"Claims":null,"Headers":null,"ExpiresAt":null,"Username":"snorlax","Subject":"panda"},"custom":{"providerUID":"fake-provider-uid","providerName":"fake-provider-name","providerType":"fake-provider-type","oidc":{"upstreamRefreshToken":"fake-upstream-refresh-token","upstreamAccessToken":""}}},"requestedAudience":null,"grantedAudience":null},"version":"2"}`),
 				"pinniped-storage-version": []byte("1"),
 			},
 			Type: "storage.pinniped.dev/access-token",

internal/fositestorage/authorizationcode/authorizationcode.go

@@ -345,23 +345,26 @@ const ExpectedAuthorizeCodeSessionJSONFromFuzzing = `{
 				"providerName": "nŐǛ3",
 				"providerType": "闣ʬ橳(ý綃ʃʚƟ覣k眐4Ĉt",
 				"oidc": {
-					"upstreamRefreshToken": "嵽痊w©Ź榨Q|ôɵt毇妬"
+					"upstreamRefreshToken": "嵽痊w©Ź榨Q|ôɵt毇妬",
+					"upstreamAccessToken": "巈環_ɑ"
 				},
 				"ldap": {
-					"userDN": "6鉢緋uƴŤȱʀļÂ?墖\u003cƬb獭潜Ʃ饾"
+					"userDN": "ƍ蛊ʚ£:設虝27"
 				},
 				"activedirectory": {
-					"userDN": "|鬌R蜚蠣麹概÷驣7Ʀ澉1æɽ誮rʨ鷞"
+					"userDN": "伒犘c钡ɏȫ"
 				}
 			}
 		},
 		"requestedAudience": [
-			"ŚB碠k9"
+			"š%OpKȱ藚ɏ¬Ê蒭堜",
+			"ɽ誮rʨ鷞aŚB碠k",
+			"Ċi磊ůď逳鞪?3)藵睋"
 		],
 		"grantedAudience": [
-			"ʘ赱",
-			"ď逳鞪?3)藵睋邔\u0026Ű惫蜀Ģ¡圔",
-			"墀jMʥ"
+			"\u0026Ű惫蜀Ģ¡圔",
+			"墀jMʥ",
+			"+î艔垎0"
 		]
 	},
 	"version": "2"

internal/fositestorage/authorizationcode/authorizationcode_test.go

@@ -65,7 +65,7 @@ func TestAuthorizationCodeStorage(t *testing.T) {
 				},
 			},
 			Data: map[string][]byte{
-				"pinniped-storage-data":    []byte(`{"active":true,"request":{"id":"abcd-1","requestedAt":"0001-01-01T00:00:00Z","client":{"id":"pinny","redirect_uris":null,"grant_types":null,"response_types":null,"scopes":null,"audience":null,"public":true,"jwks_uri":"where","jwks":null,"token_endpoint_auth_method":"something","request_uris":null,"request_object_signing_alg":"","token_endpoint_auth_signing_alg":""},"scopes":null,"grantedScopes":null,"form":{"key":["val"]},"session":{"fosite":{"Claims":null,"Headers":null,"ExpiresAt":null,"Username":"snorlax","Subject":"panda"},"custom":{"providerUID":"fake-provider-uid","providerName":"fake-provider-name","providerType":"fake-provider-type","oidc":{"upstreamRefreshToken":"fake-upstream-refresh-token"}}},"requestedAudience":null,"grantedAudience":null},"version":"2"}`),
+				"pinniped-storage-data":    []byte(`{"active":true,"request":{"id":"abcd-1","requestedAt":"0001-01-01T00:00:00Z","client":{"id":"pinny","redirect_uris":null,"grant_types":null,"response_types":null,"scopes":null,"audience":null,"public":true,"jwks_uri":"where","jwks":null,"token_endpoint_auth_method":"something","request_uris":null,"request_object_signing_alg":"","token_endpoint_auth_signing_alg":""},"scopes":null,"grantedScopes":null,"form":{"key":["val"]},"session":{"fosite":{"Claims":null,"Headers":null,"ExpiresAt":null,"Username":"snorlax","Subject":"panda"},"custom":{"providerUID":"fake-provider-uid","providerName":"fake-provider-name","providerType":"fake-provider-type","oidc":{"upstreamRefreshToken":"fake-upstream-refresh-token","upstreamAccessToken":""}}},"requestedAudience":null,"grantedAudience":null},"version":"2"}`),
 				"pinniped-storage-version": []byte("1"),
 			},
 			Type: "storage.pinniped.dev/authcode",
@@ -84,7 +84,7 @@ func TestAuthorizationCodeStorage(t *testing.T) {
 				},
 			},
 			Data: map[string][]byte{
-				"pinniped-storage-data":    []byte(`{"active":false,"request":{"id":"abcd-1","requestedAt":"0001-01-01T00:00:00Z","client":{"id":"pinny","redirect_uris":null,"grant_types":null,"response_types":null,"scopes":null,"audience":null,"public":true,"jwks_uri":"where","jwks":null,"token_endpoint_auth_method":"something","request_uris":null,"request_object_signing_alg":"","token_endpoint_auth_signing_alg":""},"scopes":null,"grantedScopes":null,"form":{"key":["val"]},"session":{"fosite":{"Claims":null,"Headers":null,"ExpiresAt":null,"Username":"snorlax","Subject":"panda"},"custom":{"providerUID":"fake-provider-uid","providerName":"fake-provider-name","providerType":"fake-provider-type","oidc":{"upstreamRefreshToken":"fake-upstream-refresh-token"}}},"requestedAudience":null,"grantedAudience":null},"version":"2"}`),
+				"pinniped-storage-data":    []byte(`{"active":false,"request":{"id":"abcd-1","requestedAt":"0001-01-01T00:00:00Z","client":{"id":"pinny","redirect_uris":null,"grant_types":null,"response_types":null,"scopes":null,"audience":null,"public":true,"jwks_uri":"where","jwks":null,"token_endpoint_auth_method":"something","request_uris":null,"request_object_signing_alg":"","token_endpoint_auth_signing_alg":""},"scopes":null,"grantedScopes":null,"form":{"key":["val"]},"session":{"fosite":{"Claims":null,"Headers":null,"ExpiresAt":null,"Username":"snorlax","Subject":"panda"},"custom":{"providerUID":"fake-provider-uid","providerName":"fake-provider-name","providerType":"fake-provider-type","oidc":{"upstreamRefreshToken":"fake-upstream-refresh-token","upstreamAccessToken":""}}},"requestedAudience":null,"grantedAudience":null},"version":"2"}`),
 				"pinniped-storage-version": []byte("1"),
 			},
 			Type: "storage.pinniped.dev/authcode",
@@ -393,6 +393,8 @@ func TestFuzzAndJSONNewValidEmptyAuthorizeCodeSession(t *testing.T) {
 	// the fuzzed session and storage session should have identical JSON
 	require.JSONEq(t, authorizeCodeSessionJSONFromFuzzing, authorizeCodeSessionJSONFromStorage)
 
+	// t.Log("actual value from fuzzing", authorizeCodeSessionJSONFromFuzzing) // can be useful when updating expected value
+
 	// while the fuzzer will panic if AuthorizeRequest changes in a way that cannot be fuzzed,
 	// if it adds a new field that can be fuzzed, this check will fail
 	// thus if AuthorizeRequest changes, we will detect it here (though we could possibly miss an omitempty field)

internal/fositestorage/openidconnect/openidconnect_test.go

@@ -52,7 +52,7 @@ func TestOpenIdConnectStorage(t *testing.T) {
 				},
 			},
 			Data: map[string][]byte{
-				"pinniped-storage-data":    []byte(`{"request":{"id":"abcd-1","requestedAt":"0001-01-01T00:00:00Z","client":{"id":"pinny","redirect_uris":null,"grant_types":null,"response_types":null,"scopes":null,"audience":null,"public":true,"jwks_uri":"where","jwks":null,"token_endpoint_auth_method":"something","request_uris":null,"request_object_signing_alg":"","token_endpoint_auth_signing_alg":""},"scopes":null,"grantedScopes":null,"form":{"key":["val"]},"session":{"fosite":{"Claims":null,"Headers":null,"ExpiresAt":null,"Username":"snorlax","Subject":"panda"},"custom":{"providerUID":"fake-provider-uid","providerName":"fake-provider-name","providerType":"fake-provider-type","oidc":{"upstreamRefreshToken":"fake-upstream-refresh-token"}}},"requestedAudience":null,"grantedAudience":null},"version":"2"}`),
+				"pinniped-storage-data":    []byte(`{"request":{"id":"abcd-1","requestedAt":"0001-01-01T00:00:00Z","client":{"id":"pinny","redirect_uris":null,"grant_types":null,"response_types":null,"scopes":null,"audience":null,"public":true,"jwks_uri":"where","jwks":null,"token_endpoint_auth_method":"something","request_uris":null,"request_object_signing_alg":"","token_endpoint_auth_signing_alg":""},"scopes":null,"grantedScopes":null,"form":{"key":["val"]},"session":{"fosite":{"Claims":null,"Headers":null,"ExpiresAt":null,"Username":"snorlax","Subject":"panda"},"custom":{"providerUID":"fake-provider-uid","providerName":"fake-provider-name","providerType":"fake-provider-type","oidc":{"upstreamRefreshToken":"fake-upstream-refresh-token","upstreamAccessToken":""}}},"requestedAudience":null,"grantedAudience":null},"version":"2"}`),
 				"pinniped-storage-version": []byte("1"),
 			},
 			Type: "storage.pinniped.dev/oidc",

internal/fositestorage/pkce/pkce_test.go

@@ -52,7 +52,7 @@ func TestPKCEStorage(t *testing.T) {
 				},
 			},
 			Data: map[string][]byte{
-				"pinniped-storage-data":    []byte(`{"request":{"id":"abcd-1","requestedAt":"0001-01-01T00:00:00Z","client":{"id":"pinny","redirect_uris":null,"grant_types":null,"response_types":null,"scopes":null,"audience":null,"public":true,"jwks_uri":"where","jwks":null,"token_endpoint_auth_method":"something","request_uris":null,"request_object_signing_alg":"","token_endpoint_auth_signing_alg":""},"scopes":null,"grantedScopes":null,"form":{"key":["val"]},"session":{"fosite":{"Claims":null,"Headers":null,"ExpiresAt":null,"Username":"snorlax","Subject":"panda"},"custom":{"providerUID":"fake-provider-uid","providerName":"fake-provider-name","providerType":"fake-provider-type","oidc":{"upstreamRefreshToken":"fake-upstream-refresh-token"}}},"requestedAudience":null,"grantedAudience":null},"version":"2"}`),
+				"pinniped-storage-data":    []byte(`{"request":{"id":"abcd-1","requestedAt":"0001-01-01T00:00:00Z","client":{"id":"pinny","redirect_uris":null,"grant_types":null,"response_types":null,"scopes":null,"audience":null,"public":true,"jwks_uri":"where","jwks":null,"token_endpoint_auth_method":"something","request_uris":null,"request_object_signing_alg":"","token_endpoint_auth_signing_alg":""},"scopes":null,"grantedScopes":null,"form":{"key":["val"]},"session":{"fosite":{"Claims":null,"Headers":null,"ExpiresAt":null,"Username":"snorlax","Subject":"panda"},"custom":{"providerUID":"fake-provider-uid","providerName":"fake-provider-name","providerType":"fake-provider-type","oidc":{"upstreamRefreshToken":"fake-upstream-refresh-token","upstreamAccessToken":""}}},"requestedAudience":null,"grantedAudience":null},"version":"2"}`),
 				"pinniped-storage-version": []byte("1"),
 			},
 			Type: "storage.pinniped.dev/pkce",

internal/fositestorage/refreshtoken/refreshtoken_test.go

@@ -52,7 +52,7 @@ func TestRefreshTokenStorage(t *testing.T) {
 				},
 			},
 			Data: map[string][]byte{
-				"pinniped-storage-data":    []byte(`{"request":{"id":"abcd-1","requestedAt":"0001-01-01T00:00:00Z","client":{"id":"pinny","redirect_uris":null,"grant_types":null,"response_types":null,"scopes":null,"audience":null,"public":true,"jwks_uri":"where","jwks":null,"token_endpoint_auth_method":"something","request_uris":null,"request_object_signing_alg":"","token_endpoint_auth_signing_alg":""},"scopes":null,"grantedScopes":null,"form":{"key":["val"]},"session":{"fosite":{"Claims":null,"Headers":null,"ExpiresAt":null,"Username":"snorlax","Subject":"panda"},"custom":{"providerUID":"fake-provider-uid","providerName":"fake-provider-name","providerType":"fake-provider-type","oidc":{"upstreamRefreshToken":"fake-upstream-refresh-token"}}},"requestedAudience":null,"grantedAudience":null},"version":"2"}`),
+				"pinniped-storage-data":    []byte(`{"request":{"id":"abcd-1","requestedAt":"0001-01-01T00:00:00Z","client":{"id":"pinny","redirect_uris":null,"grant_types":null,"response_types":null,"scopes":null,"audience":null,"public":true,"jwks_uri":"where","jwks":null,"token_endpoint_auth_method":"something","request_uris":null,"request_object_signing_alg":"","token_endpoint_auth_signing_alg":""},"scopes":null,"grantedScopes":null,"form":{"key":["val"]},"session":{"fosite":{"Claims":null,"Headers":null,"ExpiresAt":null,"Username":"snorlax","Subject":"panda"},"custom":{"providerUID":"fake-provider-uid","providerName":"fake-provider-name","providerType":"fake-provider-type","oidc":{"upstreamRefreshToken":"fake-upstream-refresh-token","upstreamAccessToken":""}}},"requestedAudience":null,"grantedAudience":null},"version":"2"}`),
 				"pinniped-storage-version": []byte("1"),
 			},
 			Type: "storage.pinniped.dev/refresh-token",
@@ -122,7 +122,7 @@ func TestRefreshTokenStorageRevocation(t *testing.T) {
 				},
 			},
 			Data: map[string][]byte{
-				"pinniped-storage-data":    []byte(`{"request":{"id":"abcd-1","requestedAt":"0001-01-01T00:00:00Z","client":{"id":"pinny","redirect_uris":null,"grant_types":null,"response_types":null,"scopes":null,"audience":null,"public":true,"jwks_uri":"where","jwks":null,"token_endpoint_auth_method":"something","request_uris":null,"request_object_signing_alg":"","token_endpoint_auth_signing_alg":""},"scopes":null,"grantedScopes":null,"form":{"key":["val"]},"session":{"fosite":{"Claims":null,"Headers":null,"ExpiresAt":null,"Username":"snorlax","Subject":"panda"},"custom":{"providerUID":"fake-provider-uid","providerName":"fake-provider-name","providerType":"fake-provider-type","oidc":{"upstreamRefreshToken":"fake-upstream-refresh-token"}}},"requestedAudience":null,"grantedAudience":null},"version":"2"}`),
+				"pinniped-storage-data":    []byte(`{"request":{"id":"abcd-1","requestedAt":"0001-01-01T00:00:00Z","client":{"id":"pinny","redirect_uris":null,"grant_types":null,"response_types":null,"scopes":null,"audience":null,"public":true,"jwks_uri":"where","jwks":null,"token_endpoint_auth_method":"something","request_uris":null,"request_object_signing_alg":"","token_endpoint_auth_signing_alg":""},"scopes":null,"grantedScopes":null,"form":{"key":["val"]},"session":{"fosite":{"Claims":null,"Headers":null,"ExpiresAt":null,"Username":"snorlax","Subject":"panda"},"custom":{"providerUID":"fake-provider-uid","providerName":"fake-provider-name","providerType":"fake-provider-type","oidc":{"upstreamRefreshToken":"fake-upstream-refresh-token","upstreamAccessToken":""}}},"requestedAudience":null,"grantedAudience":null},"version":"2"}`),
 				"pinniped-storage-version": []byte("1"),
 			},
 			Type: "storage.pinniped.dev/refresh-token",

internal/psession/pinniped_session.go

@@ -61,7 +61,19 @@ const (
 
 // OIDCSessionData is the additional data needed by Pinniped when the upstream IDP is an OIDC provider.
 type OIDCSessionData struct {
+	// UpstreamRefreshToken will contain the refresh token from the upstream OIDC provider, if the upstream provider
+	// returned a refresh token during initial authorization. Otherwise, this field should be empty
+	// and the UpstreamAccessToken should be non-empty. We may not get a refresh token from the upstream provider,
+	// but we should always get an access token. However, when we do get a refresh token there is no need to
+	// also store the access token, since storing unnecessary tokens makes it possible for them to be leaked and
+	// creates more upstream revocation HTTP requests when it comes time to revoke the stored tokens.
 	UpstreamRefreshToken string `json:"upstreamRefreshToken"`
+
+	// UpstreamAccessToken will contain the access token returned by the upstream OIDC provider during initial
+	// authorization, but only when the provider did not also return a refresh token. When UpstreamRefreshToken is
+	// non-empty, then this field should be empty, indicating that we should use the upstream refresh token during
+	// downstream refresh.
+	UpstreamAccessToken string `json:"upstreamAccessToken"`
 }
 
 // LDAPSessionData is the additional data needed by Pinniped when the upstream IDP is an LDAP provider.