377 lines
12 KiB
Go
377 lines
12 KiB
Go
package providers
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import (
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"context"
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"encoding/base64"
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"encoding/json"
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"errors"
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"fmt"
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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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"time"
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"github.com/coreos/go-oidc/v3/oidc"
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"github.com/oauth2-proxy/oauth2-proxy/v7/pkg/apis/sessions"
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. "github.com/onsi/gomega"
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"github.com/stretchr/testify/assert"
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)
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type fakeAzureKeySetStub struct{}
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func (fakeAzureKeySetStub) VerifySignature(_ context.Context, jwt string) (payload []byte, err error) {
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decodeString, err := base64.RawURLEncoding.DecodeString(strings.Split(jwt, ".")[1])
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if err != nil {
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return nil, err
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}
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return decodeString, nil
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}
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type azureOAuthPayload struct {
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AccessToken string `json:"access_token,omitempty"`
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RefreshToken string `json:"refresh_token,omitempty"`
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ExpiresOn int64 `json:"expires_on,omitempty,string"`
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IDToken string `json:"id_token,omitempty"`
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}
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func testAzureProvider(hostname string) *AzureProvider {
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p := NewAzureProvider(
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&ProviderData{
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ProviderName: "",
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LoginURL: &url.URL{},
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RedeemURL: &url.URL{},
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ProfileURL: &url.URL{},
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ValidateURL: &url.URL{},
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ProtectedResource: &url.URL{},
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Scope: "",
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EmailClaim: "email",
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Verifier: oidc.NewVerifier(
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"https://issuer.example.com",
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fakeAzureKeySetStub{},
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&oidc.Config{
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ClientID: "cd6d4fae-f6a6-4a34-8454-2c6b598e9532",
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SkipClientIDCheck: true,
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SkipIssuerCheck: true,
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SkipExpiryCheck: true,
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},
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),
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})
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if hostname != "" {
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updateURL(p.Data().LoginURL, hostname)
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updateURL(p.Data().RedeemURL, hostname)
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updateURL(p.Data().ProfileURL, hostname)
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updateURL(p.Data().ValidateURL, hostname)
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updateURL(p.Data().ProtectedResource, hostname)
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}
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return p
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}
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func TestNewAzureProvider(t *testing.T) {
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g := NewWithT(t)
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// Test that defaults are set when calling for a new provider with nothing set
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providerData := NewAzureProvider(&ProviderData{}).Data()
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g.Expect(providerData.ProviderName).To(Equal("Azure"))
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g.Expect(providerData.LoginURL.String()).To(Equal("https://login.microsoftonline.com/common/oauth2/authorize"))
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g.Expect(providerData.RedeemURL.String()).To(Equal("https://login.microsoftonline.com/common/oauth2/token"))
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g.Expect(providerData.ProfileURL.String()).To(Equal("https://graph.microsoft.com/v1.0/me"))
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g.Expect(providerData.ValidateURL.String()).To(Equal("https://graph.microsoft.com/v1.0/me"))
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g.Expect(providerData.Scope).To(Equal("openid"))
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}
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func TestAzureProviderOverrides(t *testing.T) {
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p := NewAzureProvider(
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&ProviderData{
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LoginURL: &url.URL{
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Scheme: "https",
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Host: "example.com",
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Path: "/oauth/auth"},
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RedeemURL: &url.URL{
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Scheme: "https",
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Host: "example.com",
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Path: "/oauth/token"},
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ProfileURL: &url.URL{
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Scheme: "https",
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Host: "example.com",
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Path: "/oauth/profile"},
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ValidateURL: &url.URL{
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Scheme: "https",
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Host: "example.com",
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Path: "/oauth/tokeninfo"},
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ProtectedResource: &url.URL{
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Scheme: "https",
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Host: "example.com"},
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Scope: "profile"})
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assert.NotEqual(t, nil, p)
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assert.Equal(t, "Azure", p.Data().ProviderName)
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assert.Equal(t, "https://example.com/oauth/auth",
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p.Data().LoginURL.String())
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assert.Equal(t, "https://example.com/oauth/token",
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p.Data().RedeemURL.String())
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assert.Equal(t, "https://example.com/oauth/profile",
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p.Data().ProfileURL.String())
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assert.Equal(t, "https://example.com/oauth/tokeninfo",
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p.Data().ValidateURL.String())
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assert.Equal(t, "https://example.com",
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p.Data().ProtectedResource.String())
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assert.Equal(t, "profile", p.Data().Scope)
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}
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func TestAzureSetTenant(t *testing.T) {
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p := testAzureProvider("")
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p.Configure("example")
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assert.Equal(t, "Azure", p.Data().ProviderName)
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assert.Equal(t, "example", p.Tenant)
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assert.Equal(t, "https://login.microsoftonline.com/example/oauth2/authorize",
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p.Data().LoginURL.String())
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assert.Equal(t, "https://login.microsoftonline.com/example/oauth2/token",
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p.Data().RedeemURL.String())
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assert.Equal(t, "https://graph.microsoft.com/v1.0/me",
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p.Data().ProfileURL.String())
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assert.Equal(t, "https://graph.microsoft.com",
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p.Data().ProtectedResource.String())
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assert.Equal(t, "https://graph.microsoft.com/v1.0/me", p.Data().ValidateURL.String())
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assert.Equal(t, "openid", p.Data().Scope)
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}
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func testAzureBackend(payload string) *httptest.Server {
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return testAzureBackendWithError(payload, false)
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}
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func testAzureBackendWithError(payload string, injectError bool) *httptest.Server {
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path := "/v1.0/me"
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return httptest.NewServer(http.HandlerFunc(
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func(w http.ResponseWriter, r *http.Request) {
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if (r.URL.Path != path) && r.Method != http.MethodPost {
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w.WriteHeader(404)
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} else if r.Method == http.MethodPost && r.Body != nil {
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if injectError {
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w.WriteHeader(400)
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} else {
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w.WriteHeader(200)
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}
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w.Write([]byte(payload))
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} else if !IsAuthorizedInHeader(r.Header) {
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w.WriteHeader(403)
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} else {
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w.WriteHeader(200)
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w.Write([]byte(payload))
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}
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}))
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}
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func TestAzureProviderEnrichSession(t *testing.T) {
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testCases := []struct {
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Description string
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Email string
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PayloadFromAzureBackend string
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ExpectedEmail string
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ExpectedError error
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}{
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{
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Description: "should return email using mail property from Azure backend",
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PayloadFromAzureBackend: `{ "mail": "user@windows.net" }`,
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ExpectedEmail: "user@windows.net",
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},
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{
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Description: "should return email using otherMails property returned from Azure backend",
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PayloadFromAzureBackend: `{ "mail": null, "otherMails": ["user@windows.net", "altuser@windows.net"] }`,
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ExpectedEmail: "user@windows.net",
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},
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{
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Description: "should return email using userPrincipalName from Azure backend",
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PayloadFromAzureBackend: `{ "mail": null, "otherMails": [], "userPrincipalName": "user@windows.net" }`,
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ExpectedEmail: "user@windows.net",
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},
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{
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Description: "should return error when Azure backend doesn't return email information",
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PayloadFromAzureBackend: `{ "mail": null, "otherMails": [], "userPrincipalName": null }`,
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ExpectedError: fmt.Errorf("unable to get email address: %v", errors.New("type assertion to string failed")),
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},
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{
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Description: "should return specific error when unable to get email",
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PayloadFromAzureBackend: `{ "mail": null, "otherMails": [], "userPrincipalName": "" }`,
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ExpectedError: errors.New("unable to get email address"),
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},
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{
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Description: "should return error when otherMails from Azure backend is not a valid type",
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PayloadFromAzureBackend: `{ "mail": null, "otherMails": "", "userPrincipalName": null }`,
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ExpectedError: fmt.Errorf("unable to get email address: %v", errors.New("type assertion to string failed")),
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},
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{
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Description: "should not query profile api when email is already set in session",
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Email: "user@windows.net",
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ExpectedEmail: "user@windows.net",
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},
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}
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for _, testCase := range testCases {
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t.Run(testCase.Description, func(t *testing.T) {
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var (
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b *httptest.Server
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host string
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)
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if testCase.PayloadFromAzureBackend != "" {
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b = testAzureBackend(testCase.PayloadFromAzureBackend)
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defer b.Close()
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bURL, _ := url.Parse(b.URL)
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host = bURL.Host
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}
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p := testAzureProvider(host)
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session := CreateAuthorizedSession()
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session.Email = testCase.Email
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err := p.EnrichSession(context.Background(), session)
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assert.Equal(t, testCase.ExpectedError, err)
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assert.Equal(t, testCase.ExpectedEmail, session.Email)
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})
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}
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}
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func TestAzureProviderRedeem(t *testing.T) {
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testCases := []struct {
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Name string
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RefreshToken string
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ExpiresOn time.Time
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EmailFromIDToken string
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EmailFromAccessToken string
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IsIDTokenMalformed bool
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InjectRedeemURLError bool
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}{
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{
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Name: "with id_token returned",
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EmailFromIDToken: "foo1@example.com",
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RefreshToken: "some_refresh_token",
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ExpiresOn: time.Now().Add(time.Hour),
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},
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{
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Name: "without id_token returned, fallback to access token",
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EmailFromAccessToken: "foo2@example.com",
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RefreshToken: "some_refresh_token",
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ExpiresOn: time.Now().Add(time.Hour),
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},
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{
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Name: "id_token malformed, fallback to access token",
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EmailFromAccessToken: "foo3@example.com",
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RefreshToken: "some_refresh_token",
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ExpiresOn: time.Now().Add(time.Hour),
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IsIDTokenMalformed: true,
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},
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{
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Name: "both id_token and access tokens are valid, return email from id_token",
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EmailFromIDToken: "foo1@example.com",
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EmailFromAccessToken: "foo3@example.com",
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RefreshToken: "some_refresh_token",
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ExpiresOn: time.Now().Add(time.Hour),
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},
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{
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Name: "redeem URL failed, should return error",
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EmailFromIDToken: "foo1@example.com",
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EmailFromAccessToken: "foo3@example.com",
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RefreshToken: "some_refresh_token",
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ExpiresOn: time.Now().Add(time.Hour),
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InjectRedeemURLError: true,
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},
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}
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for _, testCase := range testCases {
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t.Run(testCase.Name, func(t *testing.T) {
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idTokenString := ""
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accessTokenString := ""
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if testCase.EmailFromIDToken != "" {
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var err error
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token := idTokenClaims{Email: testCase.EmailFromIDToken}
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idTokenString, err = newSignedTestIDToken(token)
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assert.NoError(t, err)
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}
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if testCase.EmailFromAccessToken != "" {
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var err error
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token := idTokenClaims{Email: testCase.EmailFromAccessToken}
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accessTokenString, err = newSignedTestIDToken(token)
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assert.NoError(t, err)
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}
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if testCase.IsIDTokenMalformed {
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idTokenString = "this is a malformed id_token"
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}
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payload := azureOAuthPayload{
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IDToken: idTokenString,
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RefreshToken: testCase.RefreshToken,
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AccessToken: accessTokenString,
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ExpiresOn: testCase.ExpiresOn.Unix(),
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}
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payloadBytes, err := json.Marshal(payload)
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assert.NoError(t, err)
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b := testAzureBackendWithError(string(payloadBytes), testCase.InjectRedeemURLError)
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defer b.Close()
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bURL, _ := url.Parse(b.URL)
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p := testAzureProvider(bURL.Host)
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p.Data().RedeemURL.Path = "/common/oauth2/token"
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s, err := p.Redeem(context.Background(), "https://localhost", "1234")
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if testCase.InjectRedeemURLError {
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assert.NotNil(t, err)
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} else {
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assert.NoError(t, err)
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assert.Equal(t, idTokenString, s.IDToken)
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assert.Equal(t, accessTokenString, s.AccessToken)
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assert.Equal(t, testCase.ExpiresOn.Unix(), s.ExpiresOn.Unix())
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assert.Equal(t, testCase.RefreshToken, s.RefreshToken)
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if testCase.EmailFromIDToken != "" {
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assert.Equal(t, testCase.EmailFromIDToken, s.Email)
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} else {
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assert.Equal(t, testCase.EmailFromAccessToken, s.Email)
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}
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}
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})
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}
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}
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func TestAzureProviderProtectedResourceConfigured(t *testing.T) {
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p := testAzureProvider("")
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p.ProtectedResource, _ = url.Parse("http://my.resource.test")
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result := p.GetLoginURL("https://my.test.app/oauth", "", "")
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assert.Contains(t, result, "resource="+url.QueryEscape("http://my.resource.test"))
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}
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func TestAzureProviderRefresh(t *testing.T) {
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email := "foo@example.com"
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idToken := idTokenClaims{Email: email}
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idTokenString, err := newSignedTestIDToken(idToken)
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assert.NoError(t, err)
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timestamp, err := time.Parse(time.RFC3339, "3006-01-02T22:04:05Z")
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assert.NoError(t, err)
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payload := azureOAuthPayload{
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IDToken: idTokenString,
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RefreshToken: "new_some_refresh_token",
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AccessToken: "new_some_access_token",
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ExpiresOn: timestamp.Unix(),
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}
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payloadBytes, err := json.Marshal(payload)
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assert.NoError(t, err)
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b := testAzureBackend(string(payloadBytes))
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defer b.Close()
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bURL, _ := url.Parse(b.URL)
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p := testAzureProvider(bURL.Host)
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expires := time.Now().Add(time.Duration(-1) * time.Hour)
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session := &sessions.SessionState{AccessToken: "some_access_token", RefreshToken: "some_refresh_token", IDToken: "some_id_token", ExpiresOn: &expires}
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refreshed, err := p.RefreshSession(context.Background(), session)
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assert.Equal(t, nil, err)
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assert.True(t, refreshed)
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assert.NotEqual(t, session, nil)
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assert.Equal(t, "new_some_access_token", session.AccessToken)
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assert.Equal(t, "new_some_refresh_token", session.RefreshToken)
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assert.Equal(t, idTokenString, session.IDToken)
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assert.Equal(t, email, session.Email)
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assert.Equal(t, timestamp, session.ExpiresOn.UTC())
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}
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