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feat(enterprise): support bearer tokens in SCIM authentication #15233

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Oct 25, 2024
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5 changes: 5 additions & 0 deletions enterprise/coderd/scim.go
Original file line number Diff line number Diff line change
Expand Up @@ -35,8 +35,13 @@ func (api *API) scimEnabledMW(next http.Handler) http.Handler {
}

func (api *API) scimVerifyAuthHeader(r *http.Request) bool {
bearer := []byte("Bearer ")
hdr := []byte(r.Header.Get("Authorization"))

if len(hdr) >= len(bearer) && subtle.ConstantTimeCompare(hdr[:len(bearer)], bearer) == 1 {
hdr = hdr[len(bearer):]
}

return len(api.SCIMAPIKey) != 0 && subtle.ConstantTimeCompare(hdr, api.SCIMAPIKey) == 1
}

Expand Down
62 changes: 62 additions & 0 deletions enterprise/coderd/scim_test.go
Original file line number Diff line number Diff line change
Expand Up @@ -56,6 +56,12 @@ func setScimAuth(key []byte) func(*http.Request) {
}
}

func setScimAuthBearer(key []byte) func(*http.Request) {
return func(r *http.Request) {
r.Header.Set("Authorization", "Bearer "+string(key))
}
}

//nolint:gocritic // SCIM authenticates via a special header and bypasses internal RBAC.
func TestScim(t *testing.T) {
t.Parallel()
Expand Down Expand Up @@ -163,6 +169,62 @@ func TestScim(t *testing.T) {
require.Empty(t, notifyEnq.Sent)
})

t.Run("OK_Bearer", func(t *testing.T) {
t.Parallel()

ctx, cancel := context.WithTimeout(context.Background(), testutil.WaitLong)
defer cancel()

// given
scimAPIKey := []byte("hi")
mockAudit := audit.NewMock()
notifyEnq := &testutil.FakeNotificationsEnqueuer{}
client, _ := coderdenttest.New(t, &coderdenttest.Options{
Options: &coderdtest.Options{
Auditor: mockAudit,
NotificationsEnqueuer: notifyEnq,
},
SCIMAPIKey: scimAPIKey,
AuditLogging: true,
LicenseOptions: &coderdenttest.LicenseOptions{
AccountID: "coolin",
Features: license.Features{
codersdk.FeatureSCIM: 1,
codersdk.FeatureAuditLog: 1,
},
},
})
mockAudit.ResetLogs()

// when
sUser := makeScimUser(t)
res, err := client.Request(ctx, "POST", "/scim/v2/Users", sUser, setScimAuthBearer(scimAPIKey))
require.NoError(t, err)
defer res.Body.Close()
require.Equal(t, http.StatusOK, res.StatusCode)

// then
// Expect audit logs
aLogs := mockAudit.AuditLogs()
require.Len(t, aLogs, 1)
af := map[string]string{}
err = json.Unmarshal([]byte(aLogs[0].AdditionalFields), &af)
require.NoError(t, err)
assert.Equal(t, coderd.SCIMAuditAdditionalFields, af)
assert.Equal(t, database.AuditActionCreate, aLogs[0].Action)

// Expect users exposed over API
userRes, err := client.Users(ctx, codersdk.UsersRequest{Search: sUser.Emails[0].Value})
require.NoError(t, err)
require.Len(t, userRes.Users, 1)
assert.Equal(t, sUser.Emails[0].Value, userRes.Users[0].Email)
assert.Equal(t, sUser.UserName, userRes.Users[0].Username)
assert.Len(t, userRes.Users[0].OrganizationIDs, 1)

// Expect zero notifications (SkipNotifications = true)
require.Empty(t, notifyEnq.Sent)
})

t.Run("OKNoDefault", func(t *testing.T) {
t.Parallel()

Expand Down
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