mirror of
https://github.com/ProtonMail/proton-bridge.git
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e9f20aee7a
When performing a factory reset, we don't want to wipe all keychain entries. The only keychain entry should be the vault's passphrase, and we need this to be able to decrypt the vault at next startup (to avoid it being reported as corrupt).
126 lines
3.5 KiB
Go
126 lines
3.5 KiB
Go
// Copyright (c) 2023 Proton AG
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//
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// This file is part of Proton Mail Bridge.
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//
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// Proton Mail Bridge is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Proton Mail Bridge is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Proton Mail Bridge. If not, see <https://www.gnu.org/licenses/>.
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package app
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import (
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"fmt"
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"path"
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"github.com/ProtonMail/proton-bridge/v3/internal/certs"
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"github.com/ProtonMail/proton-bridge/v3/internal/constants"
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"github.com/ProtonMail/proton-bridge/v3/internal/locations"
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"github.com/ProtonMail/proton-bridge/v3/internal/vault"
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"github.com/ProtonMail/proton-bridge/v3/pkg/keychain"
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"github.com/sirupsen/logrus"
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)
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func WithVault(locations *locations.Locations, fn func(*vault.Vault, bool, bool) error) error {
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logrus.Debug("Creating vault")
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defer logrus.Debug("Vault stopped")
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// Create the encVault.
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encVault, insecure, corrupt, err := newVault(locations)
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if err != nil {
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return fmt.Errorf("could not create vault: %w", err)
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}
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logrus.WithFields(logrus.Fields{
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"insecure": insecure,
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"corrupt": corrupt,
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}).Debug("Vault created")
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// Install the certificates if needed.
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if installed := encVault.GetCertsInstalled(); !installed {
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logrus.Debug("Installing certificates")
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certPEM, _ := encVault.GetBridgeTLSCert()
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if err := certs.NewInstaller().InstallCert(certPEM); err != nil {
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return fmt.Errorf("failed to install certs: %w", err)
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}
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if err := encVault.SetCertsInstalled(true); err != nil {
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return fmt.Errorf("failed to set certs installed: %w", err)
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}
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logrus.Debug("Certificates successfully installed")
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}
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// GODT-1950: Add teardown actions (e.g. to close the vault).
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return fn(encVault, insecure, corrupt)
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}
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func newVault(locations *locations.Locations) (*vault.Vault, bool, bool, error) {
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vaultDir, err := locations.ProvideSettingsPath()
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if err != nil {
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return nil, false, false, fmt.Errorf("could not get vault dir: %w", err)
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}
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logrus.WithField("vaultDir", vaultDir).Debug("Loading vault from directory")
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var (
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vaultKey []byte
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insecure bool
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)
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if key, err := loadVaultKey(vaultDir); err != nil {
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insecure = true
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// We store the insecure vault in a separate directory
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vaultDir = path.Join(vaultDir, "insecure")
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} else {
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vaultKey = key
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}
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gluonCacheDir, err := locations.ProvideGluonCachePath()
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if err != nil {
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return nil, false, false, fmt.Errorf("could not provide gluon path: %w", err)
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}
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vault, corrupt, err := vault.New(vaultDir, gluonCacheDir, vaultKey)
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if err != nil {
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return nil, false, false, fmt.Errorf("could not create vault: %w", err)
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}
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return vault, insecure, corrupt, nil
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}
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func loadVaultKey(vaultDir string) ([]byte, error) {
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helper, err := vault.GetHelper(vaultDir)
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if err != nil {
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return nil, fmt.Errorf("could not get keychain helper: %w", err)
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}
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kc, err := keychain.NewKeychain(helper, constants.KeyChainName)
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if err != nil {
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return nil, fmt.Errorf("could not create keychain: %w", err)
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}
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has, err := vault.HasVaultKey(kc)
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if err != nil {
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return nil, fmt.Errorf("could not check for vault key: %w", err)
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}
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if has {
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return vault.GetVaultKey(kc)
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}
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return vault.NewVaultKey(kc)
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}
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