90 lines
3.2 KiB
Go
90 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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"fmt"
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"net/url"
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"github.com/superseriousbusiness/activity/streams"
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"github.com/superseriousbusiness/gotosocial/internal/gtserror"
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)
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func (p *processor) GetStatus(ctx context.Context, requestedUsername string, requestedStatusID 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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// authenticate the request
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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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requestingAccount, err := p.federator.GetRemoteAccount(ctx, requestedUsername, requestingAccountURI, false, false)
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if err != nil {
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return nil, gtserror.NewErrorUnauthorized(err)
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}
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// authorize the request:
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// 1. check if a block exists between the requester and the requestee
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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.NewErrorUnauthorized(fmt.Errorf("block exists between accounts %s and %s", requestedAccount.ID, requestingAccount.ID))
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}
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// get the status out of the database here
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s, err := p.db.GetStatusByID(ctx, requestedStatusID)
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if err != nil {
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return nil, gtserror.NewErrorNotFound(fmt.Errorf("database error getting status with id %s and account id %s: %s", requestedStatusID, requestedAccount.ID, err))
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}
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if s.AccountID != requestedAccount.ID {
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return nil, gtserror.NewErrorNotFound(fmt.Errorf("status with id %s does not belong to account with id %s", s.ID, requestedAccount.ID))
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}
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visible, err := p.filter.StatusVisible(ctx, s, requestingAccount)
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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 !visible {
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return nil, gtserror.NewErrorNotFound(fmt.Errorf("status with id %s not visible to user with id %s", s.ID, requestingAccount.ID))
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}
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// requester is authorized to view the status, so convert it to AP representation and serialize it
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asStatus, err := p.tc.StatusToAS(ctx, s)
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if err != nil {
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return nil, gtserror.NewErrorInternalError(err)
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}
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data, err := streams.Serialize(asStatus)
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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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