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login_controller.go
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/
login_controller.go
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package interfaces
import (
"context"
"net/url"
"flamingo.me/flamingo/core/auth/application"
"flamingo.me/flamingo/framework/web"
"flamingo.me/flamingo/framework/web/responder"
"github.com/satori/go.uuid"
"golang.org/x/oauth2"
)
type (
LoginControllerInterface interface {
Get(context.Context, *web.Request) web.Response
}
// LoginController handles the login redirect
LoginController struct {
responder.RedirectAware
authManager *application.AuthManager
parameterHooks []LoginGetParameterHook
}
LoginGetParameterHook interface {
Parameters(context.Context, *web.Request) map[string]string
}
)
// Inject LoginController dependencies
func (l *LoginController) Inject(
redirectAware responder.RedirectAware,
authManager *application.AuthManager,
ph []LoginGetParameterHook,
) {
l.RedirectAware = redirectAware
l.authManager = authManager
l.parameterHooks = ph
}
// Get handler for logins (redirect)
func (l *LoginController) Get(c context.Context, request *web.Request) web.Response {
redirecturl, ok := request.Param1("redirecturl")
if !ok || redirecturl == "" {
redirecturl = request.Request().Referer()
}
if refURL, err := url.Parse(redirecturl); err != nil || refURL.Host != request.Request().Host {
u, _ := l.authManager.URL(c, "")
redirecturl = u.String()
}
state := uuid.NewV4().String()
request.Session().Store("auth.state", state)
request.Session().Store("auth.redirect", redirecturl)
var parameters []oauth2.AuthCodeOption
for _, hook := range l.parameterHooks {
keyValue := hook.Parameters(c, request)
for key, value := range keyValue {
parameters = append(parameters, oauth2.SetAuthURLParam(key, value))
}
}
return l.RedirectURL(l.authManager.OAuth2Config(c).AuthCodeURL(state, parameters...))
}