80 lines
2.8 KiB
Go
80 lines
2.8 KiB
Go
// GoToSocial
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// Copyright (C) GoToSocial Authors admin@gotosocial.org
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// SPDX-License-Identifier: AGPL-3.0-or-later
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero 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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// This program 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 Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package fedi
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import (
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"context"
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"errors"
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"fmt"
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"github.com/superseriousbusiness/gotosocial/internal/db"
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"github.com/superseriousbusiness/gotosocial/internal/gtscontext"
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"github.com/superseriousbusiness/gotosocial/internal/gtserror"
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"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
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)
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func (p *Processor) authenticate(ctx context.Context, requestedUsername string) (
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*gtsmodel.Account, // requestedAccount
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*gtsmodel.Account, // requestingAccount
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gtserror.WithCode,
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) {
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// Get LOCAL account with the requested username.
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requestedAccount, err := p.state.DB.GetAccountByUsernameDomain(ctx, requestedUsername, "")
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if err != nil {
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if !errors.Is(err, db.ErrNoEntries) {
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// Real db error.
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err = gtserror.Newf("db error getting account %s: %w", requestedUsername, err)
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return nil, nil, gtserror.NewErrorInternalError(err)
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}
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// Account just not found in the db.
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return nil, nil, gtserror.NewErrorNotFound(err)
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}
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// Ensure request signed, and use signature URI to
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// get requesting account, dereferencing if necessary.
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requestingAccountURI, errWithCode := p.federator.AuthenticateFederatedRequest(ctx, requestedUsername)
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if errWithCode != nil {
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return nil, nil, errWithCode
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}
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requestingAccount, _, err := p.federator.GetAccountByURI(
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gtscontext.SetFastFail(ctx),
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requestedUsername,
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requestingAccountURI,
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)
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if err != nil {
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err = gtserror.Newf("error getting account %s: %w", requestingAccountURI, err)
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return nil, nil, gtserror.NewErrorUnauthorized(err)
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}
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// Ensure no block exists between requester + requested.
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blocked, err := p.state.DB.IsEitherBlocked(ctx, requestedAccount.ID, requestingAccount.ID)
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if err != nil {
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err = gtserror.Newf("db error getting checking block: %w", err)
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return nil, nil, gtserror.NewErrorInternalError(err)
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}
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if blocked {
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err = fmt.Errorf("block exists between accounts %s and %s", requestedAccount.ID, requestingAccount.ID)
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return nil, nil, gtserror.NewErrorUnauthorized(err)
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}
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return requestedAccount, requestingAccount, nil
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}
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