921 lines
42 KiB
Go
921 lines
42 KiB
Go
// Copyright 2020-2021 the Pinniped contributors. All Rights Reserved.
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// SPDX-License-Identifier: Apache-2.0
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package callback
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import (
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"context"
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"errors"
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"net/http"
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"net/http/httptest"
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"net/url"
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"strings"
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"testing"
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"github.com/gorilla/securecookie"
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"github.com/stretchr/testify/require"
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"k8s.io/client-go/kubernetes/fake"
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"go.pinniped.dev/internal/oidc"
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"go.pinniped.dev/internal/oidc/jwks"
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"go.pinniped.dev/internal/testutil"
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"go.pinniped.dev/internal/testutil/oidctestutil"
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"go.pinniped.dev/pkg/oidcclient/nonce"
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"go.pinniped.dev/pkg/oidcclient/oidctypes"
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oidcpkce "go.pinniped.dev/pkg/oidcclient/pkce"
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)
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const (
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happyUpstreamIDPName = "upstream-idp-name"
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upstreamIssuer = "https://my-upstream-issuer.com"
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upstreamSubject = "abc123-some guid" // has a space character which should get escaped in URL
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queryEscapedUpstreamSubject = "abc123-some+guid"
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upstreamUsername = "test-pinniped-username"
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upstreamUsernameClaim = "the-user-claim"
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upstreamGroupsClaim = "the-groups-claim"
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happyUpstreamAuthcode = "upstream-auth-code"
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happyUpstreamRedirectURI = "https://example.com/callback"
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happyDownstreamState = "8b-state"
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happyDownstreamCSRF = "test-csrf"
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happyDownstreamPKCE = "test-pkce"
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happyDownstreamNonce = "test-nonce"
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happyDownstreamStateVersion = "1"
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downstreamIssuer = "https://my-downstream-issuer.com/path"
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downstreamRedirectURI = "http://127.0.0.1/callback"
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downstreamClientID = "pinniped-cli"
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downstreamNonce = "some-nonce-value"
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downstreamPKCEChallenge = "some-challenge"
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downstreamPKCEChallengeMethod = "S256"
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htmlContentType = "text/html; charset=utf-8"
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)
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var (
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upstreamGroupMembership = []string{"test-pinniped-group-0", "test-pinniped-group-1"}
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happyDownstreamScopesRequested = []string{"openid"}
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happyDownstreamScopesGranted = []string{"openid"}
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happyDownstreamRequestParamsQuery = url.Values{
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"response_type": []string{"code"},
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"scope": []string{strings.Join(happyDownstreamScopesRequested, " ")},
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"client_id": []string{downstreamClientID},
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"state": []string{happyDownstreamState},
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"nonce": []string{downstreamNonce},
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"code_challenge": []string{downstreamPKCEChallenge},
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"code_challenge_method": []string{downstreamPKCEChallengeMethod},
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"redirect_uri": []string{downstreamRedirectURI},
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}
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happyDownstreamRequestParams = happyDownstreamRequestParamsQuery.Encode()
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)
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func TestCallbackEndpoint(t *testing.T) {
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require.Len(t, happyDownstreamState, 8, "we expect fosite to allow 8 byte state params, so we want to test that boundary case")
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otherUpstreamOIDCIdentityProvider := oidctestutil.TestUpstreamOIDCIdentityProvider{
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Name: "other-upstream-idp-name",
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ClientID: "other-some-client-id",
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Scopes: []string{"other-scope1", "other-scope2"},
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}
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var stateEncoderHashKey = []byte("fake-hash-secret")
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var stateEncoderBlockKey = []byte("0123456789ABCDEF") // block encryption requires 16/24/32 bytes for AES
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var cookieEncoderHashKey = []byte("fake-hash-secret2")
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var cookieEncoderBlockKey = []byte("0123456789ABCDE2") // block encryption requires 16/24/32 bytes for AES
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require.NotEqual(t, stateEncoderHashKey, cookieEncoderHashKey)
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require.NotEqual(t, stateEncoderBlockKey, cookieEncoderBlockKey)
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var happyStateCodec = securecookie.New(stateEncoderHashKey, stateEncoderBlockKey)
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happyStateCodec.SetSerializer(securecookie.JSONEncoder{})
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var happyCookieCodec = securecookie.New(cookieEncoderHashKey, cookieEncoderBlockKey)
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happyCookieCodec.SetSerializer(securecookie.JSONEncoder{})
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happyState := happyUpstreamStateParam().Build(t, happyStateCodec)
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encodedIncomingCookieCSRFValue, err := happyCookieCodec.Encode("csrf", happyDownstreamCSRF)
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require.NoError(t, err)
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happyCSRFCookie := "__Host-pinniped-csrf=" + encodedIncomingCookieCSRFValue
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happyExchangeAndValidateTokensArgs := &oidctestutil.ExchangeAuthcodeAndValidateTokenArgs{
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Authcode: happyUpstreamAuthcode,
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PKCECodeVerifier: oidcpkce.Code(happyDownstreamPKCE),
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ExpectedIDTokenNonce: nonce.Nonce(happyDownstreamNonce),
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RedirectURI: happyUpstreamRedirectURI,
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}
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// Note that fosite puts the granted scopes as a param in the redirect URI even though the spec doesn't seem to require it
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happyDownstreamRedirectLocationRegexp := downstreamRedirectURI + `\?code=([^&]+)&scope=openid&state=` + happyDownstreamState
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tests := []struct {
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name string
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idp oidctestutil.TestUpstreamOIDCIdentityProvider
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method string
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path string
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csrfCookie string
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wantStatus int
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wantContentType string
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wantBody string
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wantRedirectLocationRegexp string
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wantBodyFormResponseRegexp string
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wantDownstreamGrantedScopes []string
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wantDownstreamIDTokenSubject string
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wantDownstreamIDTokenUsername string
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wantDownstreamIDTokenGroups []string
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wantDownstreamRequestedScopes []string
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wantDownstreamNonce string
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wantDownstreamPKCEChallenge string
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wantDownstreamPKCEChallengeMethod string
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wantExchangeAndValidateTokensCall *oidctestutil.ExchangeAuthcodeAndValidateTokenArgs
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}{
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{
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name: "GET with good state and cookie and successful upstream token exchange with response_mode=form_post returns 200 with HTML+JS form",
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idp: happyUpstream().Build(),
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method: http.MethodGet,
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path: newRequestPath().WithState(
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happyUpstreamStateParam().WithAuthorizeRequestParams(
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shallowCopyAndModifyQuery(
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happyDownstreamRequestParamsQuery,
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map[string]string{"response_mode": "form_post"},
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).Encode(),
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).Build(t, happyStateCodec),
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).String(),
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csrfCookie: happyCSRFCookie,
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wantStatus: http.StatusOK,
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wantContentType: "text/html;charset=UTF-8",
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wantBodyFormResponseRegexp: `<code id="manual-auth-code">(.+)</code>`,
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wantDownstreamIDTokenSubject: upstreamIssuer + "?sub=" + queryEscapedUpstreamSubject,
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wantDownstreamIDTokenUsername: upstreamUsername,
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wantDownstreamIDTokenGroups: upstreamGroupMembership,
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wantDownstreamRequestedScopes: happyDownstreamScopesRequested,
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wantDownstreamGrantedScopes: happyDownstreamScopesGranted,
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wantDownstreamNonce: downstreamNonce,
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wantDownstreamPKCEChallenge: downstreamPKCEChallenge,
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wantDownstreamPKCEChallengeMethod: downstreamPKCEChallengeMethod,
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wantExchangeAndValidateTokensCall: happyExchangeAndValidateTokensArgs,
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},
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{
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name: "GET with good state and cookie and successful upstream token exchange returns 302 to downstream client callback with its state and code",
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idp: happyUpstream().Build(),
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method: http.MethodGet,
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path: newRequestPath().WithState(happyState).String(),
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csrfCookie: happyCSRFCookie,
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wantStatus: http.StatusFound,
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wantRedirectLocationRegexp: happyDownstreamRedirectLocationRegexp,
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wantBody: "",
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wantDownstreamIDTokenSubject: upstreamIssuer + "?sub=" + queryEscapedUpstreamSubject,
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wantDownstreamIDTokenUsername: upstreamUsername,
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wantDownstreamIDTokenGroups: upstreamGroupMembership,
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wantDownstreamRequestedScopes: happyDownstreamScopesRequested,
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wantDownstreamGrantedScopes: happyDownstreamScopesGranted,
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wantDownstreamNonce: downstreamNonce,
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wantDownstreamPKCEChallenge: downstreamPKCEChallenge,
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wantDownstreamPKCEChallengeMethod: downstreamPKCEChallengeMethod,
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wantExchangeAndValidateTokensCall: happyExchangeAndValidateTokensArgs,
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},
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{
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name: "upstream IDP provides no username or group claim configuration, so we use default username claim and skip groups",
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idp: happyUpstream().WithoutUsernameClaim().WithoutGroupsClaim().Build(),
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method: http.MethodGet,
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path: newRequestPath().WithState(happyState).String(),
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csrfCookie: happyCSRFCookie,
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wantStatus: http.StatusFound,
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wantRedirectLocationRegexp: happyDownstreamRedirectLocationRegexp,
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wantBody: "",
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wantDownstreamIDTokenSubject: upstreamIssuer + "?sub=" + queryEscapedUpstreamSubject,
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wantDownstreamIDTokenUsername: upstreamIssuer + "?sub=" + queryEscapedUpstreamSubject,
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wantDownstreamIDTokenGroups: []string{},
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wantDownstreamRequestedScopes: happyDownstreamScopesRequested,
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wantDownstreamGrantedScopes: happyDownstreamScopesGranted,
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wantDownstreamNonce: downstreamNonce,
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wantDownstreamPKCEChallenge: downstreamPKCEChallenge,
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wantDownstreamPKCEChallengeMethod: downstreamPKCEChallengeMethod,
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wantExchangeAndValidateTokensCall: happyExchangeAndValidateTokensArgs,
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},
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{
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name: "upstream IDP configures username claim as special claim `email` and `email_verified` upstream claim is missing",
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idp: happyUpstream().WithUsernameClaim("email").
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WithIDTokenClaim("email", "joe@whitehouse.gov").Build(),
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method: http.MethodGet,
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path: newRequestPath().WithState(happyState).String(),
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csrfCookie: happyCSRFCookie,
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wantStatus: http.StatusFound,
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wantRedirectLocationRegexp: happyDownstreamRedirectLocationRegexp,
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wantBody: "",
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wantDownstreamIDTokenSubject: upstreamIssuer + "?sub=" + queryEscapedUpstreamSubject,
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wantDownstreamIDTokenUsername: "joe@whitehouse.gov",
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wantDownstreamIDTokenGroups: upstreamGroupMembership,
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wantDownstreamRequestedScopes: happyDownstreamScopesRequested,
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wantDownstreamGrantedScopes: happyDownstreamScopesGranted,
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wantDownstreamNonce: downstreamNonce,
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wantDownstreamPKCEChallenge: downstreamPKCEChallenge,
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wantDownstreamPKCEChallengeMethod: downstreamPKCEChallengeMethod,
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wantExchangeAndValidateTokensCall: happyExchangeAndValidateTokensArgs,
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},
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{
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name: "upstream IDP configures username claim as special claim `email` and `email_verified` upstream claim is present with true value",
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idp: happyUpstream().WithUsernameClaim("email").
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WithIDTokenClaim("email", "joe@whitehouse.gov").
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WithIDTokenClaim("email_verified", true).Build(),
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method: http.MethodGet,
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path: newRequestPath().WithState(happyState).String(),
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csrfCookie: happyCSRFCookie,
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wantStatus: http.StatusFound,
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wantRedirectLocationRegexp: happyDownstreamRedirectLocationRegexp,
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wantBody: "",
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wantDownstreamIDTokenSubject: upstreamIssuer + "?sub=" + queryEscapedUpstreamSubject,
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wantDownstreamIDTokenUsername: "joe@whitehouse.gov",
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wantDownstreamIDTokenGroups: upstreamGroupMembership,
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wantDownstreamRequestedScopes: happyDownstreamScopesRequested,
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wantDownstreamGrantedScopes: happyDownstreamScopesGranted,
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wantDownstreamNonce: downstreamNonce,
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wantDownstreamPKCEChallenge: downstreamPKCEChallenge,
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wantDownstreamPKCEChallengeMethod: downstreamPKCEChallengeMethod,
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wantExchangeAndValidateTokensCall: happyExchangeAndValidateTokensArgs,
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},
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{
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name: "upstream IDP configures username claim as anything other than special claim `email` and `email_verified` upstream claim is present with false value",
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idp: happyUpstream().WithUsernameClaim("some-claim").
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WithIDTokenClaim("some-claim", "joe").
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WithIDTokenClaim("email", "joe@whitehouse.gov").
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WithIDTokenClaim("email_verified", false).Build(),
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method: http.MethodGet,
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path: newRequestPath().WithState(happyState).String(),
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csrfCookie: happyCSRFCookie,
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wantStatus: http.StatusFound, // succeed despite `email_verified=false` because we're not using the email claim for anything
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wantRedirectLocationRegexp: happyDownstreamRedirectLocationRegexp,
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wantBody: "",
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wantDownstreamIDTokenSubject: upstreamIssuer + "?sub=" + queryEscapedUpstreamSubject,
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wantDownstreamIDTokenUsername: "joe",
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wantDownstreamIDTokenGroups: upstreamGroupMembership,
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wantDownstreamRequestedScopes: happyDownstreamScopesRequested,
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wantDownstreamGrantedScopes: happyDownstreamScopesGranted,
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wantDownstreamNonce: downstreamNonce,
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wantDownstreamPKCEChallenge: downstreamPKCEChallenge,
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wantDownstreamPKCEChallengeMethod: downstreamPKCEChallengeMethod,
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wantExchangeAndValidateTokensCall: happyExchangeAndValidateTokensArgs,
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},
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{
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name: "upstream IDP configures username claim as special claim `email` and `email_verified` upstream claim is present with illegal value",
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idp: happyUpstream().WithUsernameClaim("email").
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WithIDTokenClaim("email", "joe@whitehouse.gov").
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WithIDTokenClaim("email_verified", "supposed to be boolean").Build(),
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method: http.MethodGet,
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path: newRequestPath().WithState(happyState).String(),
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csrfCookie: happyCSRFCookie,
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wantStatus: http.StatusUnprocessableEntity,
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wantContentType: htmlContentType,
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wantBody: "Unprocessable Entity: email_verified claim in upstream ID token has invalid format\n",
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wantExchangeAndValidateTokensCall: happyExchangeAndValidateTokensArgs,
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},
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{
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name: "upstream IDP configures username claim as special claim `email` and `email_verified` upstream claim is present with false value",
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idp: happyUpstream().WithUsernameClaim("email").
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WithIDTokenClaim("email", "joe@whitehouse.gov").
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WithIDTokenClaim("email_verified", false).Build(),
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method: http.MethodGet,
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path: newRequestPath().WithState(happyState).String(),
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csrfCookie: happyCSRFCookie,
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wantStatus: http.StatusUnprocessableEntity,
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wantContentType: htmlContentType,
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wantBody: "Unprocessable Entity: email_verified claim in upstream ID token has false value\n",
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wantExchangeAndValidateTokensCall: happyExchangeAndValidateTokensArgs,
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},
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{
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name: "upstream IDP provides username claim configuration as `sub`, so the downstream token subject should be exactly what they asked for",
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idp: happyUpstream().WithUsernameClaim("sub").Build(),
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method: http.MethodGet,
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path: newRequestPath().WithState(happyState).String(),
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csrfCookie: happyCSRFCookie,
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wantStatus: http.StatusFound,
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wantRedirectLocationRegexp: happyDownstreamRedirectLocationRegexp,
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wantBody: "",
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wantDownstreamIDTokenSubject: upstreamIssuer + "?sub=" + queryEscapedUpstreamSubject,
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wantDownstreamIDTokenUsername: upstreamSubject,
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wantDownstreamIDTokenGroups: upstreamGroupMembership,
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wantDownstreamRequestedScopes: happyDownstreamScopesRequested,
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wantDownstreamGrantedScopes: happyDownstreamScopesGranted,
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wantDownstreamNonce: downstreamNonce,
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wantDownstreamPKCEChallenge: downstreamPKCEChallenge,
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wantDownstreamPKCEChallengeMethod: downstreamPKCEChallengeMethod,
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wantExchangeAndValidateTokensCall: happyExchangeAndValidateTokensArgs,
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},
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{
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name: "upstream IDP's configured groups claim in the ID token has a non-array value",
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idp: happyUpstream().WithIDTokenClaim(upstreamGroupsClaim, "notAnArrayGroup1 notAnArrayGroup2").Build(),
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method: http.MethodGet,
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path: newRequestPath().WithState(happyState).String(),
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csrfCookie: happyCSRFCookie,
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wantStatus: http.StatusFound,
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wantRedirectLocationRegexp: happyDownstreamRedirectLocationRegexp,
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wantBody: "",
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wantDownstreamIDTokenSubject: upstreamIssuer + "?sub=" + queryEscapedUpstreamSubject,
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wantDownstreamIDTokenUsername: upstreamUsername,
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wantDownstreamIDTokenGroups: []string{"notAnArrayGroup1 notAnArrayGroup2"},
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wantDownstreamRequestedScopes: happyDownstreamScopesRequested,
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wantDownstreamGrantedScopes: happyDownstreamScopesGranted,
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wantDownstreamNonce: downstreamNonce,
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wantDownstreamPKCEChallenge: downstreamPKCEChallenge,
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wantDownstreamPKCEChallengeMethod: downstreamPKCEChallengeMethod,
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wantExchangeAndValidateTokensCall: happyExchangeAndValidateTokensArgs,
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},
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{
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name: "upstream IDP's configured groups claim in the ID token is a slice of interfaces",
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idp: happyUpstream().WithIDTokenClaim(upstreamGroupsClaim, []interface{}{"group1", "group2"}).Build(),
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method: http.MethodGet,
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path: newRequestPath().WithState(happyState).String(),
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csrfCookie: happyCSRFCookie,
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wantStatus: http.StatusFound,
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wantRedirectLocationRegexp: happyDownstreamRedirectLocationRegexp,
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wantBody: "",
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wantDownstreamIDTokenSubject: upstreamIssuer + "?sub=" + queryEscapedUpstreamSubject,
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wantDownstreamIDTokenUsername: upstreamUsername,
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wantDownstreamIDTokenGroups: []string{"group1", "group2"},
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wantDownstreamRequestedScopes: happyDownstreamScopesRequested,
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wantDownstreamGrantedScopes: happyDownstreamScopesGranted,
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wantDownstreamNonce: downstreamNonce,
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wantDownstreamPKCEChallenge: downstreamPKCEChallenge,
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wantDownstreamPKCEChallengeMethod: downstreamPKCEChallengeMethod,
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wantExchangeAndValidateTokensCall: happyExchangeAndValidateTokensArgs,
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},
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// Pre-upstream-exchange verification
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{
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name: "PUT method is invalid",
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method: http.MethodPut,
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path: newRequestPath().String(),
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wantStatus: http.StatusMethodNotAllowed,
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wantContentType: htmlContentType,
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wantBody: "Method Not Allowed: PUT (try GET)\n",
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},
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{
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name: "POST method is invalid",
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method: http.MethodPost,
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path: newRequestPath().String(),
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wantStatus: http.StatusMethodNotAllowed,
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wantContentType: htmlContentType,
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wantBody: "Method Not Allowed: POST (try GET)\n",
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},
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{
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name: "PATCH method is invalid",
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method: http.MethodPatch,
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path: newRequestPath().String(),
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wantStatus: http.StatusMethodNotAllowed,
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wantContentType: htmlContentType,
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wantBody: "Method Not Allowed: PATCH (try GET)\n",
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},
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{
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name: "DELETE method is invalid",
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method: http.MethodDelete,
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path: newRequestPath().String(),
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wantStatus: http.StatusMethodNotAllowed,
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wantContentType: htmlContentType,
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wantBody: "Method Not Allowed: DELETE (try GET)\n",
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},
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{
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name: "code param was not included on request",
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method: http.MethodGet,
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path: newRequestPath().WithState(happyState).WithoutCode().String(),
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csrfCookie: happyCSRFCookie,
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wantStatus: http.StatusBadRequest,
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wantContentType: htmlContentType,
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wantBody: "Bad Request: code param not found\n",
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},
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{
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name: "state param was not included on request",
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method: http.MethodGet,
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path: newRequestPath().WithoutState().String(),
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csrfCookie: happyCSRFCookie,
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wantStatus: http.StatusBadRequest,
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wantContentType: htmlContentType,
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wantBody: "Bad Request: state param not found\n",
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},
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{
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name: "state param was not signed correctly, has expired, or otherwise cannot be decoded for any reason",
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idp: happyUpstream().Build(),
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method: http.MethodGet,
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path: newRequestPath().WithState("this-will-not-decode").String(),
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csrfCookie: happyCSRFCookie,
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wantStatus: http.StatusBadRequest,
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wantContentType: htmlContentType,
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wantBody: "Bad Request: error reading state\n",
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},
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{
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// This shouldn't happen in practice because the authorize endpoint should have already run the same
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// validations, but we would like to test the error handling in this endpoint anyway.
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name: "state param contains authorization request params which fail validation",
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idp: happyUpstream().Build(),
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method: http.MethodGet,
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path: newRequestPath().WithState(
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happyUpstreamStateParam().
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WithAuthorizeRequestParams(shallowCopyAndModifyQuery(happyDownstreamRequestParamsQuery, map[string]string{"prompt": "none login"}).Encode()).
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Build(t, happyStateCodec),
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).String(),
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csrfCookie: happyCSRFCookie,
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wantExchangeAndValidateTokensCall: happyExchangeAndValidateTokensArgs,
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wantStatus: http.StatusInternalServerError,
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wantContentType: htmlContentType,
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wantBody: "Internal Server Error: error while generating and saving authcode\n",
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},
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{
|
|
name: "state's internal version does not match what we want",
|
|
idp: happyUpstream().Build(),
|
|
method: http.MethodGet,
|
|
path: newRequestPath().WithState(happyUpstreamStateParam().WithStateVersion("wrong-state-version").Build(t, happyStateCodec)).String(),
|
|
csrfCookie: happyCSRFCookie,
|
|
wantStatus: http.StatusUnprocessableEntity,
|
|
wantContentType: htmlContentType,
|
|
wantBody: "Unprocessable Entity: state format version is invalid\n",
|
|
},
|
|
{
|
|
name: "state's downstream auth params element is invalid",
|
|
idp: happyUpstream().Build(),
|
|
method: http.MethodGet,
|
|
path: newRequestPath().WithState(happyUpstreamStateParam().
|
|
WithAuthorizeRequestParams("the following is an invalid url encoding token, and therefore this is an invalid param: %z").
|
|
Build(t, happyStateCodec)).String(),
|
|
csrfCookie: happyCSRFCookie,
|
|
wantStatus: http.StatusBadRequest,
|
|
wantContentType: htmlContentType,
|
|
wantBody: "Bad Request: error reading state downstream auth params\n",
|
|
},
|
|
{
|
|
name: "state's downstream auth params are missing required value (e.g., client_id)",
|
|
idp: happyUpstream().Build(),
|
|
method: http.MethodGet,
|
|
path: newRequestPath().WithState(
|
|
happyUpstreamStateParam().
|
|
WithAuthorizeRequestParams(shallowCopyAndModifyQuery(happyDownstreamRequestParamsQuery, map[string]string{"client_id": ""}).Encode()).
|
|
Build(t, happyStateCodec),
|
|
).String(),
|
|
csrfCookie: happyCSRFCookie,
|
|
wantStatus: http.StatusBadRequest,
|
|
wantContentType: htmlContentType,
|
|
wantBody: "Bad Request: error using state downstream auth params\n",
|
|
},
|
|
{
|
|
name: "state's downstream auth params does not contain openid scope",
|
|
idp: happyUpstream().Build(),
|
|
method: http.MethodGet,
|
|
path: newRequestPath().
|
|
WithState(
|
|
happyUpstreamStateParam().
|
|
WithAuthorizeRequestParams(shallowCopyAndModifyQuery(happyDownstreamRequestParamsQuery, map[string]string{"scope": "profile email"}).Encode()).
|
|
Build(t, happyStateCodec),
|
|
).String(),
|
|
csrfCookie: happyCSRFCookie,
|
|
wantStatus: http.StatusFound,
|
|
wantRedirectLocationRegexp: downstreamRedirectURI + `\?code=([^&]+)&scope=&state=` + happyDownstreamState,
|
|
wantDownstreamIDTokenUsername: upstreamUsername,
|
|
wantDownstreamIDTokenSubject: upstreamIssuer + "?sub=" + queryEscapedUpstreamSubject,
|
|
wantDownstreamRequestedScopes: []string{"profile", "email"},
|
|
wantDownstreamIDTokenGroups: upstreamGroupMembership,
|
|
wantDownstreamNonce: downstreamNonce,
|
|
wantDownstreamPKCEChallenge: downstreamPKCEChallenge,
|
|
wantDownstreamPKCEChallengeMethod: downstreamPKCEChallengeMethod,
|
|
wantExchangeAndValidateTokensCall: happyExchangeAndValidateTokensArgs,
|
|
},
|
|
{
|
|
name: "state's downstream auth params also included offline_access scope",
|
|
idp: happyUpstream().Build(),
|
|
method: http.MethodGet,
|
|
path: newRequestPath().
|
|
WithState(
|
|
happyUpstreamStateParam().
|
|
WithAuthorizeRequestParams(shallowCopyAndModifyQuery(happyDownstreamRequestParamsQuery, map[string]string{"scope": "openid offline_access"}).Encode()).
|
|
Build(t, happyStateCodec),
|
|
).String(),
|
|
csrfCookie: happyCSRFCookie,
|
|
wantStatus: http.StatusFound,
|
|
wantRedirectLocationRegexp: downstreamRedirectURI + `\?code=([^&]+)&scope=openid\+offline_access&state=` + happyDownstreamState,
|
|
wantDownstreamIDTokenUsername: upstreamUsername,
|
|
wantDownstreamIDTokenSubject: upstreamIssuer + "?sub=" + queryEscapedUpstreamSubject,
|
|
wantDownstreamRequestedScopes: []string{"openid", "offline_access"},
|
|
wantDownstreamGrantedScopes: []string{"openid", "offline_access"},
|
|
wantDownstreamIDTokenGroups: upstreamGroupMembership,
|
|
wantDownstreamNonce: downstreamNonce,
|
|
wantDownstreamPKCEChallenge: downstreamPKCEChallenge,
|
|
wantDownstreamPKCEChallengeMethod: downstreamPKCEChallengeMethod,
|
|
wantExchangeAndValidateTokensCall: happyExchangeAndValidateTokensArgs,
|
|
},
|
|
{
|
|
name: "the OIDCIdentityProvider CRD has been deleted",
|
|
idp: otherUpstreamOIDCIdentityProvider,
|
|
method: http.MethodGet,
|
|
path: newRequestPath().WithState(happyState).String(),
|
|
csrfCookie: happyCSRFCookie,
|
|
wantStatus: http.StatusUnprocessableEntity,
|
|
wantContentType: htmlContentType,
|
|
wantBody: "Unprocessable Entity: upstream provider not found\n",
|
|
},
|
|
{
|
|
name: "the CSRF cookie does not exist on request",
|
|
idp: happyUpstream().Build(),
|
|
method: http.MethodGet,
|
|
path: newRequestPath().WithState(happyState).String(),
|
|
wantStatus: http.StatusForbidden,
|
|
wantContentType: htmlContentType,
|
|
wantBody: "Forbidden: CSRF cookie is missing\n",
|
|
},
|
|
{
|
|
name: "cookie was not signed correctly, has expired, or otherwise cannot be decoded for any reason",
|
|
idp: happyUpstream().Build(),
|
|
method: http.MethodGet,
|
|
path: newRequestPath().WithState(happyState).String(),
|
|
csrfCookie: "__Host-pinniped-csrf=this-value-was-not-signed-by-pinniped",
|
|
wantStatus: http.StatusForbidden,
|
|
wantContentType: htmlContentType,
|
|
wantBody: "Forbidden: error reading CSRF cookie\n",
|
|
},
|
|
{
|
|
name: "cookie csrf value does not match state csrf value",
|
|
idp: happyUpstream().Build(),
|
|
method: http.MethodGet,
|
|
path: newRequestPath().WithState(happyUpstreamStateParam().WithCSRF("wrong-csrf-value").Build(t, happyStateCodec)).String(),
|
|
csrfCookie: happyCSRFCookie,
|
|
wantStatus: http.StatusForbidden,
|
|
wantContentType: htmlContentType,
|
|
wantBody: "Forbidden: CSRF value does not match\n",
|
|
},
|
|
|
|
// Upstream exchange
|
|
{
|
|
name: "upstream auth code exchange fails",
|
|
idp: happyUpstream().WithoutUpstreamAuthcodeExchangeError(errors.New("some error")).Build(),
|
|
method: http.MethodGet,
|
|
path: newRequestPath().WithState(happyState).String(),
|
|
csrfCookie: happyCSRFCookie,
|
|
wantStatus: http.StatusBadGateway,
|
|
wantBody: "Bad Gateway: error exchanging and validating upstream tokens\n",
|
|
wantContentType: htmlContentType,
|
|
wantExchangeAndValidateTokensCall: happyExchangeAndValidateTokensArgs,
|
|
},
|
|
{
|
|
name: "upstream ID token does not contain requested username claim",
|
|
idp: happyUpstream().WithoutIDTokenClaim(upstreamUsernameClaim).Build(),
|
|
method: http.MethodGet,
|
|
path: newRequestPath().WithState(happyState).String(),
|
|
csrfCookie: happyCSRFCookie,
|
|
wantStatus: http.StatusUnprocessableEntity,
|
|
wantBody: "Unprocessable Entity: no username claim in upstream ID token\n",
|
|
wantContentType: htmlContentType,
|
|
wantExchangeAndValidateTokensCall: happyExchangeAndValidateTokensArgs,
|
|
},
|
|
{
|
|
name: "upstream ID token does not contain requested groups claim",
|
|
idp: happyUpstream().WithoutIDTokenClaim(upstreamGroupsClaim).Build(),
|
|
method: http.MethodGet,
|
|
path: newRequestPath().WithState(happyState).String(),
|
|
csrfCookie: happyCSRFCookie,
|
|
wantStatus: http.StatusFound,
|
|
wantRedirectLocationRegexp: happyDownstreamRedirectLocationRegexp,
|
|
wantBody: "",
|
|
wantDownstreamIDTokenSubject: upstreamIssuer + "?sub=" + queryEscapedUpstreamSubject,
|
|
wantDownstreamIDTokenUsername: upstreamUsername,
|
|
wantDownstreamRequestedScopes: happyDownstreamScopesRequested,
|
|
wantDownstreamGrantedScopes: happyDownstreamScopesGranted,
|
|
wantDownstreamIDTokenGroups: []string{},
|
|
wantDownstreamNonce: downstreamNonce,
|
|
wantDownstreamPKCEChallenge: downstreamPKCEChallenge,
|
|
wantDownstreamPKCEChallengeMethod: downstreamPKCEChallengeMethod,
|
|
wantExchangeAndValidateTokensCall: happyExchangeAndValidateTokensArgs,
|
|
},
|
|
{
|
|
name: "upstream ID token contains username claim with weird format",
|
|
idp: happyUpstream().WithIDTokenClaim(upstreamUsernameClaim, 42).Build(),
|
|
method: http.MethodGet,
|
|
path: newRequestPath().WithState(happyState).String(),
|
|
csrfCookie: happyCSRFCookie,
|
|
wantStatus: http.StatusUnprocessableEntity,
|
|
wantContentType: htmlContentType,
|
|
wantBody: "Unprocessable Entity: username claim in upstream ID token has invalid format\n",
|
|
wantExchangeAndValidateTokensCall: happyExchangeAndValidateTokensArgs,
|
|
},
|
|
{
|
|
name: "upstream ID token does not contain iss claim when using default username claim config",
|
|
idp: happyUpstream().WithIDTokenClaim("iss", "").WithoutUsernameClaim().Build(),
|
|
method: http.MethodGet,
|
|
path: newRequestPath().WithState(happyState).String(),
|
|
csrfCookie: happyCSRFCookie,
|
|
wantStatus: http.StatusUnprocessableEntity,
|
|
wantContentType: htmlContentType,
|
|
wantBody: "Unprocessable Entity: issuer claim in upstream ID token missing\n",
|
|
wantExchangeAndValidateTokensCall: happyExchangeAndValidateTokensArgs,
|
|
},
|
|
{
|
|
name: "upstream ID token has an non-string iss claim when using default username claim config",
|
|
idp: happyUpstream().WithIDTokenClaim("iss", 42).WithoutUsernameClaim().Build(),
|
|
method: http.MethodGet,
|
|
path: newRequestPath().WithState(happyState).String(),
|
|
csrfCookie: happyCSRFCookie,
|
|
wantStatus: http.StatusUnprocessableEntity,
|
|
wantContentType: htmlContentType,
|
|
wantBody: "Unprocessable Entity: issuer claim in upstream ID token has invalid format\n",
|
|
wantExchangeAndValidateTokensCall: happyExchangeAndValidateTokensArgs,
|
|
},
|
|
{
|
|
name: "upstream ID token contains groups claim with weird format",
|
|
idp: happyUpstream().WithIDTokenClaim(upstreamGroupsClaim, 42).Build(),
|
|
method: http.MethodGet,
|
|
path: newRequestPath().WithState(happyState).String(),
|
|
csrfCookie: happyCSRFCookie,
|
|
wantStatus: http.StatusUnprocessableEntity,
|
|
wantContentType: htmlContentType,
|
|
wantBody: "Unprocessable Entity: groups claim in upstream ID token has invalid format\n",
|
|
wantExchangeAndValidateTokensCall: happyExchangeAndValidateTokensArgs,
|
|
},
|
|
{
|
|
name: "upstream ID token contains groups claim where one element is invalid",
|
|
idp: happyUpstream().WithIDTokenClaim(upstreamGroupsClaim, []interface{}{"foo", 7}).Build(),
|
|
method: http.MethodGet,
|
|
path: newRequestPath().WithState(happyState).String(),
|
|
csrfCookie: happyCSRFCookie,
|
|
wantStatus: http.StatusUnprocessableEntity,
|
|
wantContentType: htmlContentType,
|
|
wantBody: "Unprocessable Entity: groups claim in upstream ID token has invalid format\n",
|
|
wantExchangeAndValidateTokensCall: happyExchangeAndValidateTokensArgs,
|
|
},
|
|
{
|
|
name: "upstream ID token contains groups claim with invalid null type",
|
|
idp: happyUpstream().WithIDTokenClaim(upstreamGroupsClaim, nil).Build(),
|
|
method: http.MethodGet,
|
|
path: newRequestPath().WithState(happyState).String(),
|
|
csrfCookie: happyCSRFCookie,
|
|
wantStatus: http.StatusUnprocessableEntity,
|
|
wantContentType: htmlContentType,
|
|
wantBody: "Unprocessable Entity: groups claim in upstream ID token has invalid format\n",
|
|
wantExchangeAndValidateTokensCall: happyExchangeAndValidateTokensArgs,
|
|
},
|
|
}
|
|
for _, test := range tests {
|
|
test := test
|
|
|
|
t.Run(test.name, func(t *testing.T) {
|
|
client := fake.NewSimpleClientset()
|
|
secrets := client.CoreV1().Secrets("some-namespace")
|
|
|
|
// Configure fosite the same way that the production code would.
|
|
// Inject this into our test subject at the last second so we get a fresh storage for every test.
|
|
timeoutsConfiguration := oidc.DefaultOIDCTimeoutsConfiguration()
|
|
oauthStore := oidc.NewKubeStorage(secrets, timeoutsConfiguration)
|
|
hmacSecretFunc := func() []byte { return []byte("some secret - must have at least 32 bytes") }
|
|
require.GreaterOrEqual(t, len(hmacSecretFunc()), 32, "fosite requires that hmac secrets have at least 32 bytes")
|
|
jwksProviderIsUnused := jwks.NewDynamicJWKSProvider()
|
|
oauthHelper := oidc.FositeOauth2Helper(oauthStore, downstreamIssuer, hmacSecretFunc, jwksProviderIsUnused, timeoutsConfiguration)
|
|
|
|
idpLister := oidctestutil.NewUpstreamIDPListerBuilder().WithOIDC(&test.idp).Build()
|
|
subject := NewHandler(idpLister, oauthHelper, happyStateCodec, happyCookieCodec, happyUpstreamRedirectURI)
|
|
req := httptest.NewRequest(test.method, test.path, nil)
|
|
if test.csrfCookie != "" {
|
|
req.Header.Set("Cookie", test.csrfCookie)
|
|
}
|
|
rsp := httptest.NewRecorder()
|
|
subject.ServeHTTP(rsp, req)
|
|
t.Logf("response: %#v", rsp)
|
|
t.Logf("response body: %q", rsp.Body.String())
|
|
|
|
testutil.RequireSecurityHeaders(t, rsp)
|
|
|
|
if test.wantExchangeAndValidateTokensCall != nil {
|
|
require.Equal(t, 1, test.idp.ExchangeAuthcodeAndValidateTokensCallCount())
|
|
test.wantExchangeAndValidateTokensCall.Ctx = req.Context()
|
|
require.Equal(t, test.wantExchangeAndValidateTokensCall, test.idp.ExchangeAuthcodeAndValidateTokensArgs(0))
|
|
} else {
|
|
require.Equal(t, 0, test.idp.ExchangeAuthcodeAndValidateTokensCallCount())
|
|
}
|
|
|
|
require.Equal(t, test.wantStatus, rsp.Code)
|
|
testutil.RequireEqualContentType(t, rsp.Header().Get("Content-Type"), test.wantContentType)
|
|
|
|
switch {
|
|
// If we want a specific static response body, assert that.
|
|
case test.wantBody != "":
|
|
require.Equal(t, test.wantBody, rsp.Body.String())
|
|
|
|
// Else if we want a body that contains a regex-matched auth code, assert that (for "response_mode=form_post").
|
|
case test.wantBodyFormResponseRegexp != "":
|
|
oidctestutil.RequireAuthCodeRegexpMatch(
|
|
t,
|
|
rsp.Body.String(),
|
|
test.wantBodyFormResponseRegexp,
|
|
client,
|
|
secrets,
|
|
oauthStore,
|
|
test.wantDownstreamGrantedScopes,
|
|
test.wantDownstreamIDTokenSubject,
|
|
test.wantDownstreamIDTokenUsername,
|
|
test.wantDownstreamIDTokenGroups,
|
|
test.wantDownstreamRequestedScopes,
|
|
test.wantDownstreamPKCEChallenge,
|
|
test.wantDownstreamPKCEChallengeMethod,
|
|
test.wantDownstreamNonce,
|
|
downstreamClientID,
|
|
downstreamRedirectURI,
|
|
)
|
|
|
|
// Otherwise, expect an empty response body.
|
|
default:
|
|
require.Empty(t, rsp.Body.String())
|
|
}
|
|
|
|
if test.wantRedirectLocationRegexp != "" { //nolint:nestif // don't mind have several sequential if statements in this test
|
|
require.Len(t, rsp.Header().Values("Location"), 1)
|
|
oidctestutil.RequireAuthCodeRegexpMatch(
|
|
t,
|
|
rsp.Header().Get("Location"),
|
|
test.wantRedirectLocationRegexp,
|
|
client,
|
|
secrets,
|
|
oauthStore,
|
|
test.wantDownstreamGrantedScopes,
|
|
test.wantDownstreamIDTokenSubject,
|
|
test.wantDownstreamIDTokenUsername,
|
|
test.wantDownstreamIDTokenGroups,
|
|
test.wantDownstreamRequestedScopes,
|
|
test.wantDownstreamPKCEChallenge,
|
|
test.wantDownstreamPKCEChallengeMethod,
|
|
test.wantDownstreamNonce,
|
|
downstreamClientID,
|
|
downstreamRedirectURI,
|
|
)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
type requestPath struct {
|
|
code, state *string
|
|
}
|
|
|
|
func newRequestPath() *requestPath {
|
|
c := happyUpstreamAuthcode
|
|
s := "4321"
|
|
return &requestPath{
|
|
code: &c,
|
|
state: &s,
|
|
}
|
|
}
|
|
|
|
func (r *requestPath) WithCode(code string) *requestPath {
|
|
r.code = &code
|
|
return r
|
|
}
|
|
|
|
func (r *requestPath) WithoutCode() *requestPath {
|
|
r.code = nil
|
|
return r
|
|
}
|
|
|
|
func (r *requestPath) WithState(state string) *requestPath {
|
|
r.state = &state
|
|
return r
|
|
}
|
|
|
|
func (r *requestPath) WithoutState() *requestPath {
|
|
r.state = nil
|
|
return r
|
|
}
|
|
|
|
func (r *requestPath) String() string {
|
|
path := "/downstream-provider-name/callback?"
|
|
params := url.Values{}
|
|
if r.code != nil {
|
|
params.Add("code", *r.code)
|
|
}
|
|
if r.state != nil {
|
|
params.Add("state", *r.state)
|
|
}
|
|
return path + params.Encode()
|
|
}
|
|
|
|
type upstreamStateParamBuilder oidctestutil.ExpectedUpstreamStateParamFormat
|
|
|
|
func happyUpstreamStateParam() *upstreamStateParamBuilder {
|
|
return &upstreamStateParamBuilder{
|
|
U: happyUpstreamIDPName,
|
|
P: happyDownstreamRequestParams,
|
|
N: happyDownstreamNonce,
|
|
C: happyDownstreamCSRF,
|
|
K: happyDownstreamPKCE,
|
|
V: happyDownstreamStateVersion,
|
|
}
|
|
}
|
|
|
|
func (b upstreamStateParamBuilder) Build(t *testing.T, stateEncoder *securecookie.SecureCookie) string {
|
|
state, err := stateEncoder.Encode("s", b)
|
|
require.NoError(t, err)
|
|
return state
|
|
}
|
|
|
|
func (b *upstreamStateParamBuilder) WithAuthorizeRequestParams(params string) *upstreamStateParamBuilder {
|
|
b.P = params
|
|
return b
|
|
}
|
|
|
|
func (b *upstreamStateParamBuilder) WithNonce(nonce string) *upstreamStateParamBuilder {
|
|
b.N = nonce
|
|
return b
|
|
}
|
|
|
|
func (b *upstreamStateParamBuilder) WithCSRF(csrf string) *upstreamStateParamBuilder {
|
|
b.C = csrf
|
|
return b
|
|
}
|
|
|
|
func (b *upstreamStateParamBuilder) WithPKCVE(pkce string) *upstreamStateParamBuilder {
|
|
b.K = pkce
|
|
return b
|
|
}
|
|
|
|
func (b *upstreamStateParamBuilder) WithStateVersion(version string) *upstreamStateParamBuilder {
|
|
b.V = version
|
|
return b
|
|
}
|
|
|
|
type upstreamOIDCIdentityProviderBuilder struct {
|
|
idToken map[string]interface{}
|
|
usernameClaim, groupsClaim string
|
|
authcodeExchangeErr error
|
|
}
|
|
|
|
func happyUpstream() *upstreamOIDCIdentityProviderBuilder {
|
|
return &upstreamOIDCIdentityProviderBuilder{
|
|
usernameClaim: upstreamUsernameClaim,
|
|
groupsClaim: upstreamGroupsClaim,
|
|
idToken: map[string]interface{}{
|
|
"iss": upstreamIssuer,
|
|
"sub": upstreamSubject,
|
|
upstreamUsernameClaim: upstreamUsername,
|
|
upstreamGroupsClaim: upstreamGroupMembership,
|
|
"other-claim": "should be ignored",
|
|
},
|
|
}
|
|
}
|
|
|
|
func (u *upstreamOIDCIdentityProviderBuilder) WithUsernameClaim(value string) *upstreamOIDCIdentityProviderBuilder {
|
|
u.usernameClaim = value
|
|
return u
|
|
}
|
|
|
|
func (u *upstreamOIDCIdentityProviderBuilder) WithoutUsernameClaim() *upstreamOIDCIdentityProviderBuilder {
|
|
u.usernameClaim = ""
|
|
return u
|
|
}
|
|
|
|
func (u *upstreamOIDCIdentityProviderBuilder) WithoutGroupsClaim() *upstreamOIDCIdentityProviderBuilder {
|
|
u.groupsClaim = ""
|
|
return u
|
|
}
|
|
|
|
func (u *upstreamOIDCIdentityProviderBuilder) WithIDTokenClaim(name string, value interface{}) *upstreamOIDCIdentityProviderBuilder {
|
|
u.idToken[name] = value
|
|
return u
|
|
}
|
|
|
|
func (u *upstreamOIDCIdentityProviderBuilder) WithoutIDTokenClaim(claim string) *upstreamOIDCIdentityProviderBuilder {
|
|
delete(u.idToken, claim)
|
|
return u
|
|
}
|
|
|
|
func (u *upstreamOIDCIdentityProviderBuilder) WithoutUpstreamAuthcodeExchangeError(err error) *upstreamOIDCIdentityProviderBuilder {
|
|
u.authcodeExchangeErr = err
|
|
return u
|
|
}
|
|
|
|
func (u *upstreamOIDCIdentityProviderBuilder) Build() oidctestutil.TestUpstreamOIDCIdentityProvider {
|
|
return oidctestutil.TestUpstreamOIDCIdentityProvider{
|
|
Name: happyUpstreamIDPName,
|
|
ClientID: "some-client-id",
|
|
UsernameClaim: u.usernameClaim,
|
|
GroupsClaim: u.groupsClaim,
|
|
Scopes: []string{"scope1", "scope2"},
|
|
ExchangeAuthcodeAndValidateTokensFunc: func(ctx context.Context, authcode string, pkceCodeVerifier oidcpkce.Code, expectedIDTokenNonce nonce.Nonce) (*oidctypes.Token, error) {
|
|
if u.authcodeExchangeErr != nil {
|
|
return nil, u.authcodeExchangeErr
|
|
}
|
|
return &oidctypes.Token{IDToken: &oidctypes.IDToken{Claims: u.idToken}}, nil
|
|
},
|
|
}
|
|
}
|
|
|
|
func shallowCopyAndModifyQuery(query url.Values, modifications map[string]string) url.Values {
|
|
copied := url.Values{}
|
|
for key, value := range query {
|
|
copied[key] = value
|
|
}
|
|
for key, value := range modifications {
|
|
if value == "" {
|
|
copied.Del(key)
|
|
} else {
|
|
copied[key] = []string{value}
|
|
}
|
|
}
|
|
return copied
|
|
}
|