88 lines
3.2 KiB
Go
88 lines
3.2 KiB
Go
/*
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GoToSocial
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Copyright (C) 2021-2022 GoToSocial Authors admin@gotosocial.org
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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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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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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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*/
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package federation
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import (
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"context"
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"errors"
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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/uris"
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)
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func (p *processor) GetUser(ctx context.Context, requestedUsername string, requestURL *url.URL) (interface{}, gtserror.WithCode) {
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// get the account the request is referring to
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requestedAccount, err := p.db.GetLocalAccountByUsername(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, authenticated, err := p.federator.AuthenticateFederatedRequest(ctx, requestedUsername)
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if err != nil {
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return nil, gtserror.NewErrorNotAuthorized(err, "not authorized")
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}
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if !authenticated {
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return nil, gtserror.NewErrorNotAuthorized(errors.New("not authorized"), "not authorized")
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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(ctx, requestedUsername, requestingAccountURI) {
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requestingAccount, err := p.federator.GetRemoteAccount(ctx, requestedUsername, requestingAccountURI, false, false)
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if err != nil {
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return nil, gtserror.NewErrorNotAuthorized(err)
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}
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blocked, err := p.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.NewErrorNotAuthorized(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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