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mautrix-signal/pkg/signalmeow/serviceauth.go

73 lines
2.4 KiB
Go

// mautrix-signal - A Matrix-signal puppeting bridge.
// Copyright (C) 2024 Tulir Asokan
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
package signalmeow
import (
"context"
"fmt"
"net/http"
"sync"
"time"
"go.mau.fi/mautrix-signal/pkg/signalmeow/web"
)
type basicExpiringCredentials struct {
Username string `json:"username"`
Password string `json:"password"`
CreatedAt time.Time `json:"-"`
}
func (bec *basicExpiringCredentials) Expired() bool {
return bec == nil || bec.CreatedAt.IsZero() || time.Since(bec.CreatedAt) > ContactDiscoveryAuthTTL
}
func (cli *Client) getContactDiscoveryCredentials(ctx context.Context) (*basicExpiringCredentials, error) {
return cli.getCredentialsWithCache(ctx, &cli.cdAuth, &cli.cdAuthLock, "/v2/directory/auth")
}
func (cli *Client) getStorageCredentials(ctx context.Context) (*basicExpiringCredentials, error) {
return cli.getCredentialsWithCache(ctx, &cli.storageAuth, &cli.storageAuthLock, "/v1/storage/auth")
}
func (cli *Client) getCredentialsWithCache(ctx context.Context, cache **basicExpiringCredentials, lock *sync.Mutex, path string) (*basicExpiringCredentials, error) {
lock.Lock()
defer lock.Unlock()
if (*cache).Expired() {
newCreds, err := cli.getCredentialsFromServer(ctx, path)
if err != nil {
return nil, err
}
*cache = newCreds
}
return *cache, nil
}
func (cli *Client) getCredentialsFromServer(ctx context.Context, path string) (*basicExpiringCredentials, error) {
resp, err := cli.AuthedWS.SendRequest(ctx, http.MethodGet, path, nil, nil)
if err != nil {
return nil, err
}
var auth basicExpiringCredentials
auth.CreatedAt = time.Now()
err = web.DecodeWSResponseBody(ctx, &auth, resp)
if err != nil {
return nil, fmt.Errorf("failed to decode response: %w", err)
}
return &auth, nil
}