func (s *Service) passwordGrant(w http.ResponseWriter, r *http.Request, client *Client) {
	// Get user credentials from form data
	username := r.Form.Get("username") // usually an email
	password := r.Form.Get("password")

	// Authenticate the user
	user, err := s.AuthUser(username, password)
	if err != nil {
		// For security reasons, return a general error message
		response.UnauthorizedError(w, "User authentication required")
		return
	}

	// Get the scope string
	scope, err := s.GetScope(r.Form.Get("scope"))
	if err != nil {
		response.Error(w, err.Error(), http.StatusBadRequest)
		return
	}

	// Create a new access token
	accessToken, err := s.GrantAccessToken(
		client, // client
		user,   // user
		scope,  // scope
	)
	if err != nil {
		response.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}

	// Create or retrieve a refresh token
	refreshToken, err := s.GetOrCreateRefreshToken(
		client, // client
		user,   // user
		scope,  // scope
	)
	if err != nil {
		response.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}

	// Write the JSON access token to the response
	accessTokenRespone := &AccessTokenResponse{
		ID:           accessToken.ID,
		AccessToken:  accessToken.Token,
		ExpiresIn:    s.cnf.Oauth.AccessTokenLifetime,
		TokenType:    "Bearer",
		Scope:        accessToken.Scope,
		RefreshToken: refreshToken.Token,
	}
	response.WriteJSON(w, accessTokenRespone, 200)
}
Пример #2
0
// Handles all OAuth 2.0 grant types (POST /v1/oauth/tokens)
func (s *Service) tokensHandler(w http.ResponseWriter, r *http.Request) {
	// Parse the form so r.Form becomes available
	if err := r.ParseForm(); err != nil {
		response.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}

	// Map of grant types against handler functions
	grantTypes := map[string]func(w http.ResponseWriter, r *http.Request, client *Client){
		"authorization_code": s.authorizationCodeGrant,
		"password":           s.passwordGrant,
		"client_credentials": s.clientCredentialsGrant,
		"refresh_token":      s.refreshTokenGrant,
	}

	// Check the grant type
	grantHandler, ok := grantTypes[r.Form.Get("grant_type")]
	if !ok {
		response.Error(w, errInvalidGrantType.Error(), http.StatusBadRequest)
		return
	}

	// Get client credentials from basic auth
	clientID, secret, ok := r.BasicAuth()
	if !ok {
		response.UnauthorizedError(w, errClientAuthenticationRequired.Error())
		return
	}

	// Authenticate the client
	client, err := s.AuthClient(clientID, secret)
	if err != nil {
		// For security reasons, return a general error message
		response.UnauthorizedError(w, errClientAuthenticationRequired.Error())
		return
	}

	// Execute the correct function based on the grant type
	grantHandler(w, r, client)
}