gotosocial/internal/api/auth/auth.go

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/*
GoToSocial
Copyright (C) 2021-2023 GoToSocial Authors admin@gotosocial.org
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package auth
import (
"net/http"
"github.com/gin-contrib/sessions"
"github.com/gin-gonic/gin"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/oidc"
"github.com/superseriousbusiness/gotosocial/internal/processing"
)
const (
/*
paths prefixed with 'auth'
*/
// AuthSignInPath is the API path for users to sign in through
AuthSignInPath = "/sign_in"
// AuthCheckYourEmailPath users land here after registering a new account, instructs them to confirm their email
AuthCheckYourEmailPath = "/check_your_email"
// AuthWaitForApprovalPath users land here after confirming their email
// but before an admin approves their account (if such is required)
AuthWaitForApprovalPath = "/wait_for_approval"
// AuthAccountDisabledPath users land here when their account is suspended by an admin
AuthAccountDisabledPath = "/account_disabled"
// AuthCallbackPath is the API path for receiving callback tokens from external OIDC providers
AuthCallbackPath = "/callback"
/*
paths prefixed with 'oauth'
*/
// OauthTokenPath is the API path to use for granting token requests to users with valid credentials
OauthTokenPath = "/token" // #nosec G101 else we get a hardcoded credentials warning
// OauthAuthorizePath is the API path for authorization requests (eg., authorize this app to act on my behalf as a user)
OauthAuthorizePath = "/authorize"
// OauthFinalizePath is the API path for completing user registration with additional user details
OauthFinalizePath = "/finalize"
// OauthOobTokenPath is the path for serving an html representation of an oob token page.
OauthOobTokenPath = "/oob" // #nosec G101 else we get a hardcoded credentials warning
/*
params / session keys
*/
callbackStateParam = "state"
callbackCodeParam = "code"
sessionUserID = "userid"
sessionClientID = "client_id"
sessionRedirectURI = "redirect_uri"
sessionForceLogin = "force_login"
sessionResponseType = "response_type"
sessionScope = "scope"
sessionInternalState = "internal_state"
sessionClientState = "client_state"
sessionClaims = "claims"
sessionAppID = "app_id"
)
type Module struct {
db db.DB
processor *processing.Processor
idp oidc.IDP
}
// New returns an Auth module which provides both 'oauth' and 'auth' endpoints.
//
// It is safe to pass a nil idp if oidc is disabled.
func New(db db.DB, processor *processing.Processor, idp oidc.IDP) *Module {
return &Module{
db: db,
processor: processor,
idp: idp,
}
}
// RouteAuth routes all paths that should have an 'auth' prefix
func (m *Module) RouteAuth(attachHandler func(method string, path string, f ...gin.HandlerFunc) gin.IRoutes) {
attachHandler(http.MethodGet, AuthSignInPath, m.SignInGETHandler)
attachHandler(http.MethodPost, AuthSignInPath, m.SignInPOSTHandler)
attachHandler(http.MethodGet, AuthCallbackPath, m.CallbackGETHandler)
}
// RouteOauth routes all paths that should have an 'oauth' prefix
func (m *Module) RouteOauth(attachHandler func(method string, path string, f ...gin.HandlerFunc) gin.IRoutes) {
attachHandler(http.MethodPost, OauthTokenPath, m.TokenPOSTHandler)
attachHandler(http.MethodGet, OauthAuthorizePath, m.AuthorizeGETHandler)
attachHandler(http.MethodPost, OauthAuthorizePath, m.AuthorizePOSTHandler)
attachHandler(http.MethodPost, OauthFinalizePath, m.FinalizePOSTHandler)
attachHandler(http.MethodGet, OauthOobTokenPath, m.OobHandler)
}
func (m *Module) clearSession(s sessions.Session) {
s.Clear()
if err := s.Save(); err != nil {
panic(err)
}
}