88 lines
3.4 KiB
Go
88 lines
3.4 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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"fmt"
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"net/url"
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"github.com/superseriousbusiness/activity/streams"
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"github.com/superseriousbusiness/activity/streams/vocab"
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"github.com/superseriousbusiness/gotosocial/internal/gtserror"
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"github.com/superseriousbusiness/gotosocial/internal/transport"
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"github.com/superseriousbusiness/gotosocial/internal/uris"
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)
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// UserGet handles the getting of a fedi/activitypub representation of a user/account, performing appropriate authentication
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// before returning a JSON serializable interface to the caller.
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func (p *Processor) UserGet(ctx context.Context, requestedUsername string, requestURL *url.URL) (interface{}, gtserror.WithCode) {
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// Get the instance-local account the request is referring to.
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requestedAccount, err := p.state.DB.GetAccountByUsernameDomain(ctx, requestedUsername, "")
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if err != nil {
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return nil, gtserror.NewErrorNotFound(fmt.Errorf("database error getting account with username %s: %s", requestedUsername, err))
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}
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var requestedPerson vocab.ActivityStreamsPerson
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if uris.IsPublicKeyPath(requestURL) {
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// if it's a public key path, we don't need to authenticate but we'll only serve the bare minimum user profile needed for the public key
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requestedPerson, err = p.tc.AccountToASMinimal(ctx, requestedAccount)
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if err != nil {
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return nil, gtserror.NewErrorInternalError(err)
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}
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} else {
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// if it's any other path, we want to fully authenticate the request before we serve any data, and then we can serve a more complete profile
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requestingAccountURI, errWithCode := p.federator.AuthenticateFederatedRequest(ctx, requestedUsername)
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if errWithCode != nil {
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return nil, errWithCode
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}
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// if we're not already handshaking/dereferencing a remote account, dereference it now
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if !p.federator.Handshaking(requestedUsername, requestingAccountURI) {
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requestingAccount, err := p.federator.GetAccountByURI(
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transport.WithFastfail(ctx), requestedUsername, requestingAccountURI, false,
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)
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if err != nil {
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return nil, gtserror.NewErrorUnauthorized(err)
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}
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blocked, err := p.state.DB.IsBlocked(ctx, requestedAccount.ID, requestingAccount.ID, true)
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if err != nil {
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return nil, gtserror.NewErrorInternalError(err)
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}
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if blocked {
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return nil, gtserror.NewErrorUnauthorized(fmt.Errorf("block exists between accounts %s and %s", requestedAccount.ID, requestingAccount.ID))
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}
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}
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requestedPerson, err = p.tc.AccountToAS(ctx, requestedAccount)
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if err != nil {
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return nil, gtserror.NewErrorInternalError(err)
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}
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}
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data, err := streams.Serialize(requestedPerson)
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if err != nil {
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return nil, gtserror.NewErrorInternalError(err)
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}
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return data, nil
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}
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