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manager.go
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manager.go
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package auth
import (
"fmt"
"github.com/sauerbraten/waiter/pkg/protocol/role"
)
type Provider interface {
GenerateChallenge(name string, callback func(reqID uint32, chal string, err error))
ConfirmAnswer(reqID uint32, answ string, callback func(ok bool, err error))
}
type callbacks struct {
onSuccess func(role.ID)
onFailure func(error)
}
type Manager struct {
providersByDomain map[string]Provider
rolesByDomain map[string]role.ID
callbacksByRequest map[uint32]callbacks
}
func NewManager(providers map[string]Provider, roles map[string]role.ID) *Manager {
return &Manager{
providersByDomain: providers,
rolesByDomain: roles,
callbacksByRequest: map[uint32]callbacks{},
}
}
func (m *Manager) TryAuthentication(domain, name string, onChal func(reqID uint32, chal string), onSuccess func(role.ID), onFailure func(error)) {
p, ok := m.providersByDomain[domain]
if !ok {
onFailure(fmt.Errorf("auth: no provider for domain '%s'", domain))
return
}
p.GenerateChallenge(name, func(reqID uint32, chal string, err error) {
if err != nil {
onFailure(err)
return
}
m.callbacksByRequest[reqID] = callbacks{
onSuccess: onSuccess,
onFailure: onFailure,
}
onChal(reqID, chal)
})
return
}
func (m *Manager) CheckAnswer(reqID uint32, domain string, answ string) (err error) {
defer delete(m.callbacksByRequest, reqID)
p, ok := m.providersByDomain[domain]
if !ok {
err = fmt.Errorf("auth: no provider for domain '%s'", domain)
return
}
callbacks, ok := m.callbacksByRequest[reqID]
if !ok {
err = fmt.Errorf("auth: unkown request '%d'", reqID)
return
}
p.ConfirmAnswer(reqID, answ, func(ok bool, err error) {
if err != nil {
go callbacks.onFailure(err)
return
}
go callbacks.onSuccess(m.rolesByDomain[domain])
})
return
}