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/*
GoToSocial
Copyright (C) 2021-2022 GoToSocial Authors admin@gotosocial.org
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 <http://www.gnu.org/licenses/>.
*/
package account
import (
"context"
"errors"
"fmt"
"time"
"github.com/gorilla/feeds"
"github.com/superseriousbusiness/gotosocial/internal/config"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtserror"
)
const rssFeedLength = 20
func (p *processor) GetRSSFeedForUsername(ctx context.Context, username string) (func() (string, gtserror.WithCode), time.Time, gtserror.WithCode) {
account, err := p.db.GetAccountByUsernameDomain(ctx, username, "")
if err != nil {
if err == db.ErrNoEntries {
return nil, time.Time{}, gtserror.NewErrorNotFound(errors.New("GetRSSFeedForUsername: account not found"))
}
return nil, time.Time{}, gtserror.NewErrorInternalError(fmt.Errorf("GetRSSFeedForUsername: db error: %s", err))
}
if !*account.EnableRSS {
return nil, time.Time{}, gtserror.NewErrorNotFound(errors.New("GetRSSFeedForUsername: account RSS feed not enabled"))
}
lastModified, err := p.db.GetAccountLastPosted(ctx, account.ID, true)
if err != nil {
return nil, time.Time{}, gtserror.NewErrorInternalError(fmt.Errorf("GetRSSFeedForUsername: db error: %s", err))
}
return func() (string, gtserror.WithCode) {
statuses, err := p.db.GetAccountWebStatuses(ctx, account.ID, rssFeedLength, "")
if err != nil && err != db.ErrNoEntries {
return "", gtserror.NewErrorInternalError(fmt.Errorf("GetRSSFeedForUsername: db error: %s", err))
}
author := "@" + account.Username + "@" + config.GetAccountDomain()
title := "Posts from " + author
description := "Posts from " + author
link := &feeds.Link{Href: account.URL}
var image *feeds.Image
if account.AvatarMediaAttachmentID != "" {
if account.AvatarMediaAttachment == nil {
avatar, err := p.db.GetAttachmentByID(ctx, account.AvatarMediaAttachmentID)
if err != nil {
return "", gtserror.NewErrorInternalError(fmt.Errorf("GetRSSFeedForUsername: db error fetching avatar attachment: %s", err))
}
account.AvatarMediaAttachment = avatar
}
image = &feeds.Image{
Url: account.AvatarMediaAttachment.Thumbnail.URL,
Title: "Avatar for " + author,
Link: account.URL,
}
}
feed := &feeds.Feed{
Title: title,
Description: description,
Link: link,
Image: image,
}
for i, s := range statuses {
// take the date of the first (ie., latest) status as feed updated value
if i == 0 {
feed.Updated = s.UpdatedAt
}
item, err := p.tc.StatusToRSSItem(ctx, s)
if err != nil {
return "", gtserror.NewErrorInternalError(fmt.Errorf("GetRSSFeedForUsername: error converting status to feed item: %s", err))
}
feed.Add(item)
}
rss, err := feed.ToRss()
if err != nil {
return "", gtserror.NewErrorInternalError(fmt.Errorf("GetRSSFeedForUsername: error converting feed to rss string: %s", err))
}
return rss, nil
}, lastModified, nil
}
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