gotosocial/internal/processing/status/util.go

327 lines
12 KiB
Go

/*
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 status
import (
"context"
"errors"
"fmt"
"github.com/superseriousbusiness/gotosocial/internal/api/model"
apimodel "github.com/superseriousbusiness/gotosocial/internal/api/model"
"github.com/superseriousbusiness/gotosocial/internal/config"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtserror"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/log"
"github.com/superseriousbusiness/gotosocial/internal/util"
)
func (p *processor) ProcessVisibility(ctx context.Context, form *apimodel.AdvancedStatusCreateForm, accountDefaultVis gtsmodel.Visibility, status *gtsmodel.Status) error {
// by default all flags are set to true
federated := true
boostable := true
replyable := true
likeable := true
// If visibility isn't set on the form, then just take the account default.
// If that's also not set, take the default for the whole instance.
var vis gtsmodel.Visibility
switch {
case form.Visibility != "":
vis = p.tc.APIVisToVis(form.Visibility)
case accountDefaultVis != "":
vis = accountDefaultVis
default:
vis = gtsmodel.VisibilityDefault
}
switch vis {
case gtsmodel.VisibilityPublic:
// for public, there's no need to change any of the advanced flags from true regardless of what the user filled out
break
case gtsmodel.VisibilityUnlocked:
// for unlocked the user can set any combination of flags they like so look at them all to see if they're set and then apply them
if form.Federated != nil {
federated = *form.Federated
}
if form.Boostable != nil {
boostable = *form.Boostable
}
if form.Replyable != nil {
replyable = *form.Replyable
}
if form.Likeable != nil {
likeable = *form.Likeable
}
case gtsmodel.VisibilityFollowersOnly, gtsmodel.VisibilityMutualsOnly:
// for followers or mutuals only, boostable will *always* be false, but the other fields can be set so check and apply them
boostable = false
if form.Federated != nil {
federated = *form.Federated
}
if form.Replyable != nil {
replyable = *form.Replyable
}
if form.Likeable != nil {
likeable = *form.Likeable
}
case gtsmodel.VisibilityDirect:
// direct is pretty easy: there's only one possible setting so return it
federated = true
boostable = false
replyable = true
likeable = true
}
status.Visibility = vis
status.Federated = &federated
status.Boostable = &boostable
status.Replyable = &replyable
status.Likeable = &likeable
return nil
}
func (p *processor) ProcessReplyToID(ctx context.Context, form *apimodel.AdvancedStatusCreateForm, thisAccountID string, status *gtsmodel.Status) gtserror.WithCode {
if form.InReplyToID == "" {
return nil
}
// If this status is a reply to another status, we need to do a bit of work to establish whether or not this status can be posted:
//
// 1. Does the replied status exist in the database?
// 2. Is the replied status marked as replyable?
// 3. Does a block exist between either the current account or the account that posted the status it's replying to?
//
// If this is all OK, then we fetch the repliedStatus and the repliedAccount for later processing.
repliedStatus := &gtsmodel.Status{}
repliedAccount := &gtsmodel.Account{}
if err := p.db.GetByID(ctx, form.InReplyToID, repliedStatus); err != nil {
if err == db.ErrNoEntries {
err := fmt.Errorf("status with id %s not replyable because it doesn't exist", form.InReplyToID)
return gtserror.NewErrorBadRequest(err, err.Error())
}
err := fmt.Errorf("db error fetching status with id %s: %s", form.InReplyToID, err)
return gtserror.NewErrorInternalError(err)
}
if !*repliedStatus.Replyable {
err := fmt.Errorf("status with id %s is marked as not replyable", form.InReplyToID)
return gtserror.NewErrorForbidden(err, err.Error())
}
if err := p.db.GetByID(ctx, repliedStatus.AccountID, repliedAccount); err != nil {
if err == db.ErrNoEntries {
err := fmt.Errorf("status with id %s not replyable because account id %s is not known", form.InReplyToID, repliedStatus.AccountID)
return gtserror.NewErrorBadRequest(err, err.Error())
}
err := fmt.Errorf("db error fetching account with id %s: %s", repliedStatus.AccountID, err)
return gtserror.NewErrorInternalError(err)
}
if blocked, err := p.db.IsBlocked(ctx, thisAccountID, repliedAccount.ID, true); err != nil {
err := fmt.Errorf("db error checking block: %s", err)
return gtserror.NewErrorInternalError(err)
} else if blocked {
err := fmt.Errorf("status with id %s not replyable", form.InReplyToID)
return gtserror.NewErrorNotFound(err)
}
status.InReplyToID = repliedStatus.ID
status.InReplyToURI = repliedStatus.URI
status.InReplyToAccountID = repliedAccount.ID
return nil
}
func (p *processor) ProcessMediaIDs(ctx context.Context, form *apimodel.AdvancedStatusCreateForm, thisAccountID string, status *gtsmodel.Status) gtserror.WithCode {
if form.MediaIDs == nil {
return nil
}
attachments := []*gtsmodel.MediaAttachment{}
attachmentIDs := []string{}
for _, mediaID := range form.MediaIDs {
attachment, err := p.db.GetAttachmentByID(ctx, mediaID)
if err != nil {
if errors.Is(err, db.ErrNoEntries) {
err = fmt.Errorf("ProcessMediaIDs: media not found for media id %s", mediaID)
return gtserror.NewErrorBadRequest(err, err.Error())
}
err = fmt.Errorf("ProcessMediaIDs: db error for media id %s", mediaID)
return gtserror.NewErrorInternalError(err)
}
if attachment.AccountID != thisAccountID {
err = fmt.Errorf("ProcessMediaIDs: media with id %s does not belong to account %s", mediaID, thisAccountID)
return gtserror.NewErrorBadRequest(err, err.Error())
}
if attachment.StatusID != "" || attachment.ScheduledStatusID != "" {
err = fmt.Errorf("ProcessMediaIDs: media with id %s is already attached to a status", mediaID)
return gtserror.NewErrorBadRequest(err, err.Error())
}
minDescriptionChars := config.GetMediaDescriptionMinChars()
if descriptionLength := len([]rune(attachment.Description)); descriptionLength < minDescriptionChars {
err = fmt.Errorf("ProcessMediaIDs: description too short! media description of at least %d chararacters is required but %d was provided for media with id %s", minDescriptionChars, descriptionLength, mediaID)
return gtserror.NewErrorBadRequest(err, err.Error())
}
attachments = append(attachments, attachment)
attachmentIDs = append(attachmentIDs, attachment.ID)
}
status.Attachments = attachments
status.AttachmentIDs = attachmentIDs
return nil
}
func (p *processor) ProcessLanguage(ctx context.Context, form *apimodel.AdvancedStatusCreateForm, accountDefaultLanguage string, status *gtsmodel.Status) error {
if form.Language != "" {
status.Language = form.Language
} else {
status.Language = accountDefaultLanguage
}
if status.Language == "" {
return errors.New("no language given either in status create form or account default")
}
return nil
}
func (p *processor) ProcessMentions(ctx context.Context, form *apimodel.AdvancedStatusCreateForm, accountID string, status *gtsmodel.Status) error {
mentionedAccountNames := util.DeriveMentionNamesFromText(form.Status)
mentions := []*gtsmodel.Mention{}
mentionIDs := []string{}
for _, mentionedAccountName := range mentionedAccountNames {
gtsMention, err := p.parseMention(ctx, mentionedAccountName, accountID, status.ID)
if err != nil {
log.Errorf("ProcessMentions: error parsing mention %s from status: %s", mentionedAccountName, err)
continue
}
if err := p.db.Put(ctx, gtsMention); err != nil {
log.Errorf("ProcessMentions: error putting mention in db: %s", err)
}
mentions = append(mentions, gtsMention)
mentionIDs = append(mentionIDs, gtsMention.ID)
}
// add full populated gts menchies to the status for passing them around conveniently
status.Mentions = mentions
// add just the ids of the mentioned accounts to the status for putting in the db
status.MentionIDs = mentionIDs
return nil
}
func (p *processor) ProcessTags(ctx context.Context, form *apimodel.AdvancedStatusCreateForm, accountID string, status *gtsmodel.Status) error {
tags := []string{}
gtsTags, err := p.db.TagStringsToTags(ctx, util.DeriveHashtagsFromText(form.Status), accountID)
if err != nil {
return fmt.Errorf("error generating hashtags from status: %s", err)
}
for _, tag := range gtsTags {
if err := p.db.Put(ctx, tag); err != nil {
if !errors.Is(err, db.ErrAlreadyExists) {
return fmt.Errorf("error putting tags in db: %s", err)
}
}
tags = append(tags, tag.ID)
}
// add full populated gts tags to the status for passing them around conveniently
status.Tags = gtsTags
// add just the ids of the used tags to the status for putting in the db
status.TagIDs = tags
return nil
}
func (p *processor) ProcessEmojis(ctx context.Context, form *apimodel.AdvancedStatusCreateForm, accountID string, status *gtsmodel.Status) error {
// for each emoji shortcode in the text, check if it's an enabled
// emoji on this instance, and if so, add it to the status
emojiShortcodes := util.DeriveEmojisFromText(form.SpoilerText + "\n\n" + form.Status)
status.Emojis = make([]*gtsmodel.Emoji, 0, len(emojiShortcodes))
status.EmojiIDs = make([]string, 0, len(emojiShortcodes))
for _, shortcode := range emojiShortcodes {
emoji, err := p.db.GetEmojiByShortcodeDomain(ctx, shortcode, "")
if err != nil {
if err != db.ErrNoEntries {
log.Errorf("error getting local emoji with shortcode %s: %s", shortcode, err)
}
continue
}
if *emoji.VisibleInPicker && !*emoji.Disabled {
status.Emojis = append(status.Emojis, emoji)
status.EmojiIDs = append(status.EmojiIDs, emoji.ID)
}
}
return nil
}
func (p *processor) ProcessContent(ctx context.Context, form *apimodel.AdvancedStatusCreateForm, accountID string, status *gtsmodel.Status) error {
// if there's nothing in the status at all we can just return early
if form.Status == "" {
status.Content = ""
return nil
}
// if format wasn't specified we should try to figure out what format this user prefers
if form.Format == "" {
acct, err := p.db.GetAccountByID(ctx, accountID)
if err != nil {
return fmt.Errorf("error processing new content: couldn't retrieve account from db to check post format: %s", err)
}
switch acct.StatusFormat {
case "plain":
form.Format = model.StatusFormatPlain
case "markdown":
form.Format = model.StatusFormatMarkdown
default:
form.Format = model.StatusFormatDefault
}
}
// parse content out of the status depending on what format has been submitted
var formatted string
switch form.Format {
case apimodel.StatusFormatPlain:
formatted = p.formatter.FromPlain(ctx, form.Status, status.Mentions, status.Tags)
case apimodel.StatusFormatMarkdown:
formatted = p.formatter.FromMarkdown(ctx, form.Status, status.Mentions, status.Tags, status.Emojis)
default:
return fmt.Errorf("format %s not recognised as a valid status format", form.Format)
}
status.Content = formatted
return nil
}