feat: add support for oauth whitelist file (#817) (#826)

* feat: add support for oauth whitelist file (#817)

* Merge branch 'main' into feat/oauth-whitelist-file

* fix: fix conflicts

* tests: use testify for testing

---------

Co-authored-by: Stavros <steveiliop56@gmail.com>

internal/bootstrap/app_bootstrap.go

@@ -31,6 +31,7 @@ type BootstrapApp struct {
 		oauthSessionCookieName string
 		localUsers             *[]model.LocalUser
 		oauthProviders         map[string]model.OAuthServiceConfig
+		oauthWhitelist         []string
 		configuredProviders    []controller.Provider
 		oidcClients            []model.OIDCClientConfig
 	}
@@ -71,6 +72,13 @@ func (app *BootstrapApp) Setup() error {
 
 	app.context.localUsers = users
 
+	oauthWhitelist, err := utils.GetStringList(app.config.OAuth.Whitelist, app.config.OAuth.WhitelistFile)
+	if err != nil {
+		return err
+	}
+
+	app.context.oauthWhitelist = oauthWhitelist
+
 	// Setup OAuth providers
 	app.context.oauthProviders = app.config.OAuth.Providers