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almost there

This commit is contained in:
tsmethurst 2021-03-17 19:52:36 +01:00
parent 6eab00e05e
commit b6087cc08d
2 changed files with 61 additions and 22 deletions
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77
internal/oauth/oauth.go
View File

@ -45,7 +45,7 @@ type API struct {
}
type login struct {
Username string `form:"username"`
Email string `form:"username"`
Password string `form:"password"`
}
@ -61,8 +61,27 @@ func New(ts oauth2.TokenStore, cs oauth2.ClientStore, conn *pg.DB, log *logrus.L
manager := manage.NewDefaultManager()
manager.MapTokenStorage(ts)
manager.MapClientStorage(cs)
manager.SetAuthorizeCodeTokenCfg(manage.DefaultAuthorizeCodeTokenCfg)
sc := &server.Config{
TokenType: "Bearer",
// Must follow the spec.
AllowGetAccessRequest: false,
// Support only the non-implicit flow.
AllowedResponseTypes: []oauth2.ResponseType{oauth2.Code},
// Allow:
// - Authorization Code (for first & third parties)
// - Refreshing Tokens
//
// Deny:
// - Resource owner secrets (password grant)
// - Client secrets
AllowedGrantTypes: []oauth2.GrantType{
oauth2.AuthorizationCode,
oauth2.Refreshing,
},
}
srv := server.NewDefaultServer(manager)
srv := server.NewServer(sc, manager)
srv.SetInternalErrorHandler(func(err error) *errors.Response {
log.Errorf("internal oauth error: %s", err)
return nil
@ -79,7 +98,6 @@ func New(ts oauth2.TokenStore, cs oauth2.ClientStore, conn *pg.DB, log *logrus.L
log: log,
}
api.server.SetPasswordAuthorizationHandler(api.PasswordAuthorizationHandler)
api.server.SetUserAuthorizationHandler(api.UserAuthorizationHandler)
api.server.SetClientInfoHandler(server.ClientFormHandler)
return api
@ -88,8 +106,8 @@ func New(ts oauth2.TokenStore, cs oauth2.ClientStore, conn *pg.DB, log *logrus.L
func (a *API) AddRoutes(s api.Server) error {
s.AttachHandler(http.MethodGet, "/auth/sign_in", a.SignInGETHandler)
s.AttachHandler(http.MethodPost, "/auth/sign_in", a.SignInPOSTHandler)
s.AttachHandler(methodAny, "/oauth/token", a.TokenHandler)
s.AttachHandler(http.MethodGet, "/oauth/authorize", a.AuthorizeHandler)
s.AttachHandler(http.MethodPost, "/oauth/token", a.TokenHandler)
s.AttachHandler(http.MethodGet, "/oauth/authorize", a.AuthorizeGETHandler)
s.AttachHandler(methodAny, "/auth", a.AuthHandler)
return nil
}
@ -106,6 +124,7 @@ func incorrectPassword() (string, error) {
// The idea is to present a sign in page to the user, where they can enter their username and password.
// The form will then POST to the sign in page, which will be handled by SignInPOSTHandler
func (a *API) SignInGETHandler(c *gin.Context) {
a.log.WithField("func", "SignInGETHandler").Trace("serving sign in html")
c.Data(http.StatusOK, "text/html; charset=utf-8", []byte(signInHTML))
}
@ -113,17 +132,26 @@ func (a *API) SignInGETHandler(c *gin.Context) {
// The idea is to present a sign in page to the user, where they can enter their username and password.
// The handler will then redirect to the auth handler served at /auth
func (a *API) SignInPOSTHandler(c *gin.Context) {
l := a.log.WithField("func", "SignInPOSTHandler")
s := sessions.Default(c)
form := &login{}
if err := c.ShouldBind(form); err != nil || form.Username == "" || form.Password == "" {
if err := c.ShouldBind(form); err != nil || form.Email == "" || form.Password == "" {
c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
return
}
s.Set("username", form.Username)
l.Tracef("parsed form: %+v", form)
userid, err := a.ValidatePassword(form.Email, form.Password);
if err != nil {
c.String(http.StatusForbidden, err.Error())
}
s.Set("username", userid)
if err := s.Save(); err != nil {
c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
return
}
l.Trace("redirecting to auth page")
c.Redirect(http.StatusFound, "/auth")
}
@ -131,6 +159,8 @@ func (a *API) SignInPOSTHandler(c *gin.Context) {
// The idea here is to serve an oauth access token to a user, which can be used for authorizing against non-public APIs.
// See https://docs.joinmastodon.org/methods/apps/oauth/#obtain-a-token
func (a *API) TokenHandler(c *gin.Context) {
l := a.log.WithField("func", "TokenHandler")
l.Trace("entered token handler, will now go to server.HandleTokenRequest")
if err := a.server.HandleTokenRequest(c.Writer, c.Request); err != nil {
c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
}
@ -139,7 +169,8 @@ func (a *API) TokenHandler(c *gin.Context) {
// AuthorizeHandler should be served as GET at https://example.org/oauth/authorize
// The idea here is to present an oauth authorize page to the user, with a button
// that they have to click to accept. See here: https://docs.joinmastodon.org/methods/apps/oauth/#authorize-a-user
func (a *API) AuthorizeHandler(c *gin.Context) {
func (a *API) AuthorizeGETHandler(c *gin.Context) {
l := a.log.WithField("func", "AuthorizeHandler")
s := sessions.Default(c)
form := &authorize{}
@ -147,6 +178,7 @@ func (a *API) AuthorizeHandler(c *gin.Context) {
c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
return
}
l.Tracef("parsed form: %+v", form)
if form.ResponseType == "" || form.ClientID == "" || form.RedirectURI == "" {
c.JSON(http.StatusBadRequest, gin.H{"error": "missing one of: response_type, client_id or redirect_uri"})
@ -164,15 +196,18 @@ func (a *API) AuthorizeHandler(c *gin.Context) {
v := s.Get("username")
if username, ok := v.(string); !ok || username == "" {
l.Trace("username was empty, redirecting to sign in page")
c.Redirect(http.StatusFound, "/auth/sign_in")
return
}
l.Trace("serving authorize html")
c.Data(http.StatusOK, "text/html; charset=utf-8", []byte(authorizeHTML))
}
// AuthHandler should be served at https://example.org/auth
func (a *API) AuthHandler(c *gin.Context) {
l := a.log.WithField("func", "AuthHandler")
s := sessions.Default(c)
values := url.Values{}
@ -220,9 +255,10 @@ func (a *API) AuthHandler(c *gin.Context) {
}
c.Request.Form = values
l.Tracef("values on request set to %+v", c.Request.Form)
if err := s.Save(); err != nil {
c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
return
}
@ -239,42 +275,45 @@ func (a *API) AuthHandler(c *gin.Context) {
// and a password. The goal is to authenticate the password against the one for that email
// address stored in the database. If OK, we return the userid (a uuid) for that user,
// so that it can be used in further Oauth flows to generate a token/retreieve an oauth client from the db.
func (a *API) PasswordAuthorizationHandler(email string, password string) (userid string, err error) {
a.log.Debugf("entering password authorization handler with email: %s and password: %s", email, password)
func (a *API) ValidatePassword(email string, password string) (userid string, err error) {
l := a.log.WithField("func", "PasswordAuthorizationHandler")
l.Tracef("email %s password %s", email, password)
// first we select the user from the database based on email address, bail if no user found for that email
gtsUser := &gtsmodel.User{}
if err := a.conn.Model(gtsUser).Where("email = ?", email).Select(); err != nil {
a.log.Debugf("user %s was not retrievable from db during oauth authorization attempt: %s", email, err)
l.Debugf("user %s was not retrievable from db during oauth authorization attempt: %s", email, err)
return incorrectPassword()
}
// make sure a password is actually set and bail if not
if gtsUser.EncryptedPassword == "" {
a.log.Warnf("encrypted password for user %s was empty for some reason", gtsUser.Email)
l.Warnf("encrypted password for user %s was empty for some reason", gtsUser.Email)
return incorrectPassword()
}
// compare the provided password with the encrypted one from the db, bail if they don't match
if err := bcrypt.CompareHashAndPassword([]byte(gtsUser.EncryptedPassword), []byte(password)); err != nil {
a.log.Debugf("password hash didn't match for user %s during login attempt: %s", gtsUser.Email, err)
l.Debugf("password hash didn't match for user %s during login attempt: %s", gtsUser.Email, err)
return incorrectPassword()
}
// If we've made it this far the email/password is correct so we need the oauth client-id of the user
// This is, conveniently, the same as the user ID, so we can just return it.
userid = gtsUser.ID
l.Tracef("returning (%s, %s)", userid, err)
return
}
// UserAuthorizationHandler gets the user's email address from the form key 'username'
// or redirects to the /auth/sign_in page, if this key is not present.
func (a *API) UserAuthorizationHandler(w http.ResponseWriter, r *http.Request) (string, error) {
username := r.FormValue("username")
func (a *API) UserAuthorizationHandler(w http.ResponseWriter, r *http.Request) (username string, err error) {
l := a.log.WithField("func", "UserAuthorizationHandler")
username = r.FormValue("username")
if username == "" {
l.Trace("username was empty, redirecting to sign in page")
http.Redirect(w, r, "/auth/sign_in", http.StatusFound)
return "", nil
}
return username, nil
l.Tracef("returning (%s, %s)", username, err)
return username, err
}

6
internal/oauth/oauth_test.go
View File

@ -48,7 +48,7 @@ func (suite *OauthTestSuite) SetupSuite() {
suite.testClient = &oauthClient{
ID: "a-known-client-id",
Secret: "some-secret",
Domain: "localhost",
Domain: "http://localhost:8080",
UserID: userID,
}
}
@ -107,14 +107,14 @@ func (suite *OauthTestSuite) TearDownTest() {
func (suite *OauthTestSuite) TestAPIInitialize() {
log := logrus.New()
log.SetLevel(logrus.DebugLevel)
log.SetLevel(logrus.TraceLevel)
r := api.New(suite.config, log)
api := New(suite.tokenStore, suite.clientStore, suite.conn, log)
api.AddRoutes(r)
go r.Start()
time.Sleep(30 * time.Second)
// http://localhost:8080/oauth/authorize?client_id=a-known-client-id&redirect_uri=urn:ietf:wg:oauth:2.0:oob&response_type=code
// http://localhost:8080/oauth/authorize?client_id=a-known-client-id&redirect_uri=''&response_type=code
}
func TestOauthTestSuite(t *testing.T) {