Files
proton-bridge/pkg/pmapi/manager_auth.go
2021-04-30 05:34:36 +02:00

115 lines
2.7 KiB
Go

package pmapi
import (
"context"
"encoding/base64"
"time"
"github.com/ProtonMail/proton-bridge/pkg/srp"
)
func (m *manager) NewClient(uid, acc, ref string, exp time.Time) Client {
return newClient(m, uid).withAuth(acc, ref, exp)
}
func (m *manager) NewClientWithRefresh(ctx context.Context, uid, ref string) (Client, *Auth, error) {
c := newClient(m, uid)
auth, err := m.authRefresh(ctx, uid, ref)
if err != nil {
return nil, nil, err
}
return c.withAuth(auth.AccessToken, auth.RefreshToken, expiresIn(auth.ExpiresIn)), auth, nil
}
func (m *manager) NewClientWithLogin(ctx context.Context, username, password string) (Client, *Auth, error) {
info, err := m.getAuthInfo(ctx, GetAuthInfoReq{Username: username})
if err != nil {
return nil, nil, err
}
srpAuth, err := srp.NewSrpAuth(info.Version, username, password, info.Salt, info.Modulus, info.ServerEphemeral)
if err != nil {
return nil, nil, err
}
proofs, err := srpAuth.GenerateSrpProofs(2048)
if err != nil {
return nil, nil, err
}
auth, err := m.auth(ctx, AuthReq{
Username: username,
ClientProof: base64.StdEncoding.EncodeToString(proofs.ClientProof),
ClientEphemeral: base64.StdEncoding.EncodeToString(proofs.ClientEphemeral),
SRPSession: info.SRPSession,
})
if err != nil {
return nil, nil, err
}
return newClient(m, auth.UID).withAuth(auth.AccessToken, auth.RefreshToken, expiresIn(auth.ExpiresIn)), auth, nil
}
func (m *manager) getAuthModulus(ctx context.Context) (AuthModulus, error) {
var res struct {
AuthModulus
}
if _, err := m.r(ctx).SetResult(&res).Get("/auth/modulus"); err != nil {
return AuthModulus{}, err
}
return res.AuthModulus, nil
}
func (m *manager) getAuthInfo(ctx context.Context, req GetAuthInfoReq) (*AuthInfo, error) {
var res struct {
*AuthInfo
}
if _, err := m.r(ctx).SetBody(req).SetResult(&res).Post("/auth/info"); err != nil {
return nil, err
}
return res.AuthInfo, nil
}
func (m *manager) auth(ctx context.Context, req AuthReq) (*Auth, error) {
var res struct {
*Auth
}
if _, err := m.r(ctx).SetBody(req).SetResult(&res).Post("/auth"); err != nil {
return nil, err
}
return res.Auth, nil
}
func (m *manager) authRefresh(ctx context.Context, uid, ref string) (*Auth, error) {
var req = AuthRefreshReq{
UID: uid,
RefreshToken: ref,
ResponseType: "token",
GrantType: "refresh_token",
RedirectURI: "https://protonmail.ch",
State: randomString(32),
}
var res struct {
*Auth
}
if _, err := m.r(ctx).SetBody(req).SetResult(&res).Post("/auth/refresh"); err != nil {
return nil, err
}
return res.Auth, nil
}
func expiresIn(seconds int64) time.Time {
return time.Now().Add(time.Duration(seconds) * time.Second)
}