GoToSocial/internal/processing/status/create.go

345 lines
12 KiB
Go

// GoToSocial
// Copyright (C) GoToSocial Authors admin@gotosocial.org
// SPDX-License-Identifier: AGPL-3.0-or-later
//
// 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"
"time"
"github.com/superseriousbusiness/gotosocial/internal/ap"
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/id"
"github.com/superseriousbusiness/gotosocial/internal/messages"
"github.com/superseriousbusiness/gotosocial/internal/text"
"github.com/superseriousbusiness/gotosocial/internal/typeutils"
"github.com/superseriousbusiness/gotosocial/internal/uris"
)
// Create processes the given form to create a new status, returning the api model representation of that status if it's OK.
//
// Precondition: the form's fields should have already been validated and normalized by the caller.
func (p *Processor) Create(ctx context.Context, account *gtsmodel.Account, application *gtsmodel.Application, form *apimodel.AdvancedStatusCreateForm) (*apimodel.Status, gtserror.WithCode) {
accountURIs := uris.GenerateURIsForAccount(account.Username)
thisStatusID := id.NewULID()
local := true
sensitive := form.Sensitive
newStatus := &gtsmodel.Status{
ID: thisStatusID,
URI: accountURIs.StatusesURI + "/" + thisStatusID,
URL: accountURIs.StatusesURL + "/" + thisStatusID,
CreatedAt: time.Now(),
UpdatedAt: time.Now(),
Local: &local,
AccountID: account.ID,
AccountURI: account.URI,
ContentWarning: text.SanitizeToPlaintext(form.SpoilerText),
ActivityStreamsType: ap.ObjectNote,
Sensitive: &sensitive,
CreatedWithApplicationID: application.ID,
Text: form.Status,
}
if errWithCode := processReplyToID(ctx, p.state.DB, form, account.ID, newStatus); errWithCode != nil {
return nil, errWithCode
}
if errWithCode := processMediaIDs(ctx, p.state.DB, form, account.ID, newStatus); errWithCode != nil {
return nil, errWithCode
}
if err := processVisibility(ctx, form, account.Privacy, newStatus); err != nil {
return nil, gtserror.NewErrorInternalError(err)
}
if err := processLanguage(ctx, form, account.Language, newStatus); err != nil {
return nil, gtserror.NewErrorInternalError(err)
}
if err := processContent(ctx, p.state.DB, p.formatter, p.parseMention, form, account.ID, newStatus); err != nil {
return nil, gtserror.NewErrorInternalError(err)
}
// put the new status in the database
if err := p.state.DB.PutStatus(ctx, newStatus); err != nil {
return nil, gtserror.NewErrorInternalError(err)
}
// send it back to the processor for async processing
p.state.Workers.EnqueueClientAPI(ctx, messages.FromClientAPI{
APObjectType: ap.ObjectNote,
APActivityType: ap.ActivityCreate,
GTSModel: newStatus,
OriginAccount: account,
})
return p.apiStatus(ctx, newStatus, account)
}
func processReplyToID(ctx context.Context, dbService db.DB, 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 := dbService.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 := dbService.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 := dbService.IsEitherBlocked(ctx, thisAccountID, repliedAccount.ID); 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 processMediaIDs(ctx context.Context, dbService db.DB, 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 := dbService.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 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 = typeutils.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 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 processContent(ctx context.Context, dbService db.DB, formatter text.Formatter, parseMention gtsmodel.ParseMentionFunc, 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 content type wasn't specified we should try to figure out what content type this user prefers
if form.ContentType == "" {
acct, err := dbService.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.StatusContentType {
case "text/plain":
form.ContentType = apimodel.StatusContentTypePlain
case "text/markdown":
form.ContentType = apimodel.StatusContentTypeMarkdown
default:
form.ContentType = apimodel.StatusContentTypeDefault
}
}
// parse content out of the status depending on what content type has been submitted
var f text.FormatFunc
switch form.ContentType {
case apimodel.StatusContentTypePlain:
f = formatter.FromPlain
case apimodel.StatusContentTypeMarkdown:
f = formatter.FromMarkdown
default:
return fmt.Errorf("format %s not recognised as a valid status format", form.ContentType)
}
formatted := f(ctx, parseMention, accountID, status.ID, form.Status)
// add full populated gts {mentions, tags, emojis} to the status for passing them around conveniently
// add just their ids to the status for putting in the db
status.Mentions = formatted.Mentions
status.MentionIDs = make([]string, 0, len(formatted.Mentions))
for _, gtsmention := range formatted.Mentions {
status.MentionIDs = append(status.MentionIDs, gtsmention.ID)
}
status.Tags = formatted.Tags
status.TagIDs = make([]string, 0, len(formatted.Tags))
for _, gtstag := range formatted.Tags {
status.TagIDs = append(status.TagIDs, gtstag.ID)
}
status.Emojis = formatted.Emojis
status.EmojiIDs = make([]string, 0, len(formatted.Emojis))
for _, gtsemoji := range formatted.Emojis {
status.EmojiIDs = append(status.EmojiIDs, gtsemoji.ID)
}
spoilerformatted := formatter.FromPlainEmojiOnly(ctx, parseMention, accountID, status.ID, form.SpoilerText)
for _, gtsemoji := range spoilerformatted.Emojis {
status.Emojis = append(status.Emojis, gtsemoji)
status.EmojiIDs = append(status.EmojiIDs, gtsemoji.ID)
}
status.Content = formatted.HTML
return nil
}