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consent: Requests re-permission only custom schemes are used
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See #866
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arekkas committed May 24, 2018
1 parent 6f96bc4 commit ac10ae1
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Showing 2 changed files with 110 additions and 70 deletions.
34 changes: 28 additions & 6 deletions consent/strategy_default.go
View file
Expand Up @@ -377,14 +377,37 @@ func (s *DefaultStrategy) requestConsent(w http.ResponseWriter, r *http.Request,
return s.forwardConsentRequest(w, r, ar, authenticationSession, nil)
}

// https://tools.ietf.org/html/rfc6749
//
// As stated in Section 10.2 of OAuth 2.0 [RFC6749], the authorization
// server SHOULD NOT process authorization requests automatically
// without user consent or interaction, except when the identity of the
// client can be assured. This includes the case where the user has
// previously approved an authorization request for a given client id --
// unless the identity of the client can be proven, the request SHOULD
// be processed as if no previous request had been approved.
//
// Measures such as claimed "https" scheme redirects MAY be accepted by
// authorization servers as identity proof. Some operating systems may
// offer alternative platform-specific identity features that MAY be
// accepted, as appropriate.
if ar.GetClient().IsPublic() {
return s.forwardConsentRequest(w, r, ar, authenticationSession, nil)
// The OpenID Connect Test Tool fails if this returns `consent_required` when `prompt=none` is used.
// According to the quote above, it should be ok to allow https to skip consent.
//
// This is tracked as issue: https://github.com/ory/hydra/issues/866
// This is also tracked as upstream issue: https://github.com/openid-certification/oidctest/issues/97
if ar.GetRedirectURI().Scheme != "https" {
return s.forwardConsentRequest(w, r, ar, authenticationSession, nil)
}
}

if ar.GetResponseTypes().Has("token") {
// We're probably requesting the implicit or hybrid flow in which case we MUST authenticate and authorize the request
return s.forwardConsentRequest(w, r, ar, authenticationSession, nil)
}
// This breaks OIDC Conformity Tests and is probably a bit paranoid.
//
// if ar.GetResponseTypes().Has("token") {
// // We're probably requesting the implicit or hybrid flow in which case we MUST authenticate and authorize the request
// return s.forwardConsentRequest(w, r, ar, authenticationSession, nil)
// }

consentSessions, err := s.M.FindPreviouslyGrantedConsentRequests(ar.GetClient().GetID(), authenticationSession.Subject)
if errors.Cause(err) == errNoPreviousConsentFound {
Expand All @@ -406,7 +429,6 @@ func (s *DefaultStrategy) forwardConsentRequest(w http.ResponseWriter, r *http.R
skip = true
}

// Let'id validate that prompt is actually not "none" if we can't skip authentication
prompt := stringsx.Splitx(ar.GetRequestForm().Get("prompt"), " ")
if stringslice.Has(prompt, "none") && !skip {
return errors.WithStack(fosite.ErrConsentRequired.WithDebug(`Prompt "none" was requested, but no previous consent was found`))
Expand Down
146 changes: 82 additions & 64 deletions consent/strategy_default_test.go
View file
Expand Up @@ -28,6 +28,7 @@ import (
"net/http"
"net/http/cookiejar"
"net/http/httptest"
"net/url"
"testing"
"time"

Expand All @@ -53,6 +54,12 @@ func mustRSAKey() *rsa.PrivateKey {
return key
}

func mustParseURL(t *testing.T, u string) *url.URL {
uu, err := url.Parse(u)
require.NoError(t, err)
return uu
}

func mockProvider(h *func(w http.ResponseWriter, r *http.Request)) *httptest.Server {
return httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
(*h)(w, r)
Expand Down Expand Up @@ -301,67 +308,78 @@ func TestStrategy(t *testing.T) {
},
},
{
d: "This should pass but require consent because it's not an authorization_code flow",
req: fosite.AuthorizeRequest{ResponseTypes: fosite.Arguments{"token", "code", "id_token"}, Request: fosite.Request{Client: &client.Client{ID: "client-id"}, Scopes: []string{"scope-a"}}},
jar: persistentCJ,
lph: func(t *testing.T) func(w http.ResponseWriter, r *http.Request) {
return func(w http.ResponseWriter, r *http.Request) {
rr, res, err := apiClient.GetLoginRequest(r.URL.Query().Get("login_challenge"))
require.NoError(t, err)
require.EqualValues(t, http.StatusOK, res.StatusCode)
assert.True(t, rr.Skip)
assert.Equal(t, "user", rr.Subject)

v, res, err := apiClient.AcceptLoginRequest(r.URL.Query().Get("login_challenge"), swagger.AcceptLoginRequest{
Subject: "user",
Remember: false,
RememberFor: 0,
Acr: "1",
})
require.NoError(t, err)
require.EqualValues(t, http.StatusOK, res.StatusCode)
require.NotEmpty(t, v.RedirectTo)
http.Redirect(w, r, v.RedirectTo, http.StatusFound)
}
},
cph: func(t *testing.T) func(w http.ResponseWriter, r *http.Request) {
return func(w http.ResponseWriter, r *http.Request) {
rr, res, err := apiClient.GetConsentRequest(r.URL.Query().Get("consent_challenge"))
require.NoError(t, err)
require.EqualValues(t, http.StatusOK, res.StatusCode)
assert.False(t, rr.Skip)
assert.Equal(t, "client-id", rr.Client.Id)
assert.Equal(t, "user", rr.Subject)

v, res, err := apiClient.AcceptConsentRequest(r.URL.Query().Get("consent_challenge"), swagger.AcceptConsentRequest{
GrantScope: []string{"scope-a"},
Remember: false,
RememberFor: 0,
Session: swagger.ConsentRequestSession{
AccessToken: map[string]interface{}{"foo": "bar"},
IdToken: map[string]interface{}{"bar": "baz"},
},
})
require.NoError(t, err)
require.EqualValues(t, http.StatusOK, res.StatusCode)
require.NotEmpty(t, v.RedirectTo)
http.Redirect(w, r, v.RedirectTo, http.StatusFound)
}
},
expectFinalStatusCode: http.StatusOK,
expectErrType: []error{ErrAbortOAuth2Request, ErrAbortOAuth2Request, nil},
expectErr: []bool{true, true, false},
expectSession: &HandledConsentRequest{
ConsentRequest: &ConsentRequest{Subject: "user"},
GrantedScope: []string{"scope-a"},
Remember: false,
RememberFor: 0,
Session: &ConsentRequestSessionData{
AccessToken: map[string]interface{}{"foo": "bar"},
IDToken: map[string]interface{}{"bar": "baz"},
},
},
d: "This should fail because prompt=none, client is public, and redirection scheme is not HTTPS but a custom scheme",
req: fosite.AuthorizeRequest{RedirectURI: mustParseURL(t, "custom://redirection-scheme/path"), Request: fosite.Request{Client: &client.Client{Public: true, ID: "client-id"}, Scopes: []string{"scope-a"}}},
prompt: "none",
jar: persistentCJ,
lph: passAuthentication(apiClient, false),
expectFinalStatusCode: fosite.ErrConsentRequired.StatusCode(),
expectErrType: []error{ErrAbortOAuth2Request, fosite.ErrConsentRequired},
expectErr: []bool{true, true},
},
// This test is disabled because it breaks OIDC Conformity Tests
//{
// d: "This should pass but require consent because it's not an authorization_code flow",
// req: fosite.AuthorizeRequest{ResponseTypes: fosite.Arguments{"token", "code", "id_token"}, Request: fosite.Request{Client: &client.Client{ID: "client-id"}, Scopes: []string{"scope-a"}}},
// jar: persistentCJ,
// lph: func(t *testing.T) func(w http.ResponseWriter, r *http.Request) {
// return func(w http.ResponseWriter, r *http.Request) {
// rr, res, err := apiClient.GetLoginRequest(r.URL.Query().Get("login_challenge"))
// require.NoError(t, err)
// require.EqualValues(t, http.StatusOK, res.StatusCode)
// assert.True(t, rr.Skip)
// assert.Equal(t, "user", rr.Subject)
//
// v, res, err := apiClient.AcceptLoginRequest(r.URL.Query().Get("login_challenge"), swagger.AcceptLoginRequest{
// Subject: "user",
// Remember: false,
// RememberFor: 0,
// Acr: "1",
// })
// require.NoError(t, err)
// require.EqualValues(t, http.StatusOK, res.StatusCode)
// require.NotEmpty(t, v.RedirectTo)
// http.Redirect(w, r, v.RedirectTo, http.StatusFound)
// }
// },
// cph: func(t *testing.T) func(w http.ResponseWriter, r *http.Request) {
// return func(w http.ResponseWriter, r *http.Request) {
// rr, res, err := apiClient.GetConsentRequest(r.URL.Query().Get("consent_challenge"))
// require.NoError(t, err)
// require.EqualValues(t, http.StatusOK, res.StatusCode)
// assert.False(t, rr.Skip)
// assert.Equal(t, "client-id", rr.Client.Id)
// assert.Equal(t, "user", rr.Subject)
//
// v, res, err := apiClient.AcceptConsentRequest(r.URL.Query().Get("consent_challenge"), swagger.AcceptConsentRequest{
// GrantScope: []string{"scope-a"},
// Remember: false,
// RememberFor: 0,
// Session: swagger.ConsentRequestSession{
// AccessToken: map[string]interface{}{"foo": "bar"},
// IdToken: map[string]interface{}{"bar": "baz"},
// },
// })
// require.NoError(t, err)
// require.EqualValues(t, http.StatusOK, res.StatusCode)
// require.NotEmpty(t, v.RedirectTo)
// http.Redirect(w, r, v.RedirectTo, http.StatusFound)
// }
// },
// expectFinalStatusCode: http.StatusOK,
// expectErrType: []error{ErrAbortOAuth2Request, ErrAbortOAuth2Request, nil},
// expectErr: []bool{true, true, false},
// expectSession: &HandledConsentRequest{
// ConsentRequest: &ConsentRequest{Subject: "user"},
// GrantedScope: []string{"scope-a"},
// Remember: false,
// RememberFor: 0,
// Session: &ConsentRequestSessionData{
// AccessToken: map[string]interface{}{"foo": "bar"},
// IDToken: map[string]interface{}{"bar": "baz"},
// },
// },
//},
{
d: "This should fail at login screen because subject from accept does not match subject from session",
req: fosite.AuthorizeRequest{ResponseTypes: fosite.Arguments{"code"}, Request: fosite.Request{Client: &client.Client{ID: "client-id"}, Scopes: []string{"scope-a"}}},
Expand Down Expand Up @@ -976,20 +994,21 @@ func TestStrategy(t *testing.T) {
cph = noopHandler(t)
}

calls := 0
calls := -1
aph = func(w http.ResponseWriter, r *http.Request) {
calls++
require.True(t, len(tc.expectErrType) >= calls+1, "%d (expect) < %d (got)", len(tc.expectErrType), calls+1)
require.True(t, len(tc.expectErr) >= calls+1, "%d (expect) < %d (got)", len(tc.expectErr), calls+1)
require.NoError(t, r.ParseForm())
tc.req.Form = r.Form

c, err := strategy.HandleOAuth2AuthorizationRequest(w, r, &tc.req)
t.Logf("DefaultStrategy returned:\n\t%+v\n\t%s", c, err)
t.Logf("DefaultStrategy returned at call %d:\n\tgot: %+v\n\texpected: %s", calls, c, err)

if tc.expectErr[calls] {
assert.Error(t, err)
if tc.expectErrType[calls] != nil {
assert.EqualError(t, err, tc.expectErrType[calls].Error(), "%+v", err)
assert.EqualError(t, tc.expectErrType[calls], err.Error(), "%+v", err)
}
} else {
require.NoError(t, err)
Expand All @@ -1002,7 +1021,6 @@ func TestStrategy(t *testing.T) {
}
}

calls++
if errors.Cause(err) == ErrAbortOAuth2Request {
// nothing to do, indicates redirect
} else if err != nil {
Expand Down

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