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allow synchronizing user status from OAuth2 login providers (#31572)

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This leverages the existing `sync_external_users` cron job to
synchronize the `IsActive` flag on users who use an OAuth2 provider set
to synchronize. This synchronization is done by checking for expired
access tokens, and using the stored refresh token to request a new
access token. If the response back from the OAuth2 provider is the
`invalid_grant` error code, the user is marked as inactive. However, the
user is able to reactivate their account by logging in the web browser
through their OAuth2 flow.

Also changed to support this is that a linked `ExternalLoginUser` is
always created upon a login or signup via OAuth2.

### Notes on updating permissions
Ideally, we would also refresh permissions from the configured OAuth
provider (e.g., admin, restricted and group mappings) to match the
implementation of LDAP. However, the OAuth library used for this `goth`,
doesn't seem to support issuing a session via refresh tokens. The
interface provides a [`RefreshToken`
method](https://github.com/markbates/goth/blob/master/provider.go#L20),
but the returned `oauth.Token` doesn't implement the `goth.Session` we
would need to call `FetchUser`. Due to specific implementations, we
would need to build a compatibility function for every provider, since
they cast to concrete types (e.g.
[Azure](https://github.com/markbates/goth/blob/master/providers/azureadv2/azureadv2.go#L132))

---------

Co-authored-by: Kyle D <kdumontnu@gmail.com>
This commit is contained in:
Rowan Bohde
2024-07-16 13:33:16 -05:00
committed by GitHub
parent 3a7454df7a
commit 416c36f303
13 changed files with 370 additions and 49 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
routers/web/auth/auth.go
View File

@ -622,10 +622,8 @@ func handleUserCreated(ctx *context.Context, u *user_model.User, gothUser *goth.
// update external user information
if gothUser != nil {
if err := externalaccount.UpdateExternalUser(ctx, u, *gothUser); err != nil {
if !errors.Is(err, util.ErrNotExist) {
log.Error("UpdateExternalUser failed: %v", err)
}
if err := externalaccount.EnsureLinkExternalToUser(ctx, u, *gothUser); err != nil {
log.Error("EnsureLinkExternalToUser failed: %v", err)
}
}

65
routers/web/auth/oauth.go
View File

@ -27,7 +27,6 @@ import (
"code.gitea.io/gitea/modules/optional"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/timeutil"
"code.gitea.io/gitea/modules/util"
"code.gitea.io/gitea/modules/web"
"code.gitea.io/gitea/modules/web/middleware"
auth_service "code.gitea.io/gitea/services/auth"
@ -1148,9 +1147,39 @@ func handleOAuth2SignIn(ctx *context.Context, source *auth.Source, u *user_model
groups := getClaimedGroups(oauth2Source, &gothUser)
opts := &user_service.UpdateOptions{}
// Reactivate user if they are deactivated
if !u.IsActive {
opts.IsActive = optional.Some(true)
}
// Update GroupClaims
opts.IsAdmin, opts.IsRestricted = getUserAdminAndRestrictedFromGroupClaims(oauth2Source, &gothUser)
if oauth2Source.GroupTeamMap != "" || oauth2Source.GroupTeamMapRemoval {
if err := source_service.SyncGroupsToTeams(ctx, u, groups, groupTeamMapping, oauth2Source.GroupTeamMapRemoval); err != nil {
ctx.ServerError("SyncGroupsToTeams", err)
return
}
}
if err := externalaccount.EnsureLinkExternalToUser(ctx, u, gothUser); err != nil {
ctx.ServerError("EnsureLinkExternalToUser", err)
return
}
// If this user is enrolled in 2FA and this source doesn't override it,
// we can't sign the user in just yet. Instead, redirect them to the 2FA authentication page.
if !needs2FA {
// Register last login
opts.SetLastLogin = true
if err := user_service.UpdateUser(ctx, u, opts); err != nil {
ctx.ServerError("UpdateUser", err)
return
}
if err := updateSession(ctx, nil, map[string]any{
"uid": u.ID,
"uname": u.Name,
@ -1162,29 +1191,6 @@ func handleOAuth2SignIn(ctx *context.Context, source *auth.Source, u *user_model
// Clear whatever CSRF cookie has right now, force to generate a new one
ctx.Csrf.DeleteCookie(ctx)
opts := &user_service.UpdateOptions{
SetLastLogin: true,
}
opts.IsAdmin, opts.IsRestricted = getUserAdminAndRestrictedFromGroupClaims(oauth2Source, &gothUser)
if err := user_service.UpdateUser(ctx, u, opts); err != nil {
ctx.ServerError("UpdateUser", err)
return
}
if oauth2Source.GroupTeamMap != "" || oauth2Source.GroupTeamMapRemoval {
if err := source_service.SyncGroupsToTeams(ctx, u, groups, groupTeamMapping, oauth2Source.GroupTeamMapRemoval); err != nil {
ctx.ServerError("SyncGroupsToTeams", err)
return
}
}
// update external user information
if err := externalaccount.UpdateExternalUser(ctx, u, gothUser); err != nil {
if !errors.Is(err, util.ErrNotExist) {
log.Error("UpdateExternalUser failed: %v", err)
}
}
if err := resetLocale(ctx, u); err != nil {
ctx.ServerError("resetLocale", err)
return
@ -1200,22 +1206,13 @@ func handleOAuth2SignIn(ctx *context.Context, source *auth.Source, u *user_model
return
}
opts := &user_service.UpdateOptions{}
opts.IsAdmin, opts.IsRestricted = getUserAdminAndRestrictedFromGroupClaims(oauth2Source, &gothUser)
if opts.IsAdmin.Has() || opts.IsRestricted.Has() {
if opts.IsActive.Has() || opts.IsAdmin.Has() || opts.IsRestricted.Has() {
if err := user_service.UpdateUser(ctx, u, opts); err != nil {
ctx.ServerError("UpdateUser", err)
return
}
}
if oauth2Source.GroupTeamMap != "" || oauth2Source.GroupTeamMapRemoval {
if err := source_service.SyncGroupsToTeams(ctx, u, groups, groupTeamMapping, oauth2Source.GroupTeamMapRemoval); err != nil {
ctx.ServerError("SyncGroupsToTeams", err)
return
}
}
if err := updateSession(ctx, nil, map[string]any{
// User needs to use 2FA, save data and redirect to 2FA page.
"twofaUid": u.ID,