347 lines
12 KiB
Go
347 lines
12 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 account
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import (
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"context"
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"errors"
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"time"
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"codeberg.org/gruf/go-kv"
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"github.com/superseriousbusiness/gotosocial/internal/ap"
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apimodel "github.com/superseriousbusiness/gotosocial/internal/api/model"
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"github.com/superseriousbusiness/gotosocial/internal/db"
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"github.com/superseriousbusiness/gotosocial/internal/gtserror"
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"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
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"github.com/superseriousbusiness/gotosocial/internal/log"
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"github.com/superseriousbusiness/gotosocial/internal/messages"
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"golang.org/x/crypto/bcrypt"
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)
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// Delete handles the complete deletion of an account.
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//
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// To be done in this function:
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// 1. Delete account's application(s), clients, and oauth tokens
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// 2. Delete account's blocks
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// 3. Delete account's emoji
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// 4. Delete account's follow requests
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// 5. Delete account's follows
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// 6. Delete account's statuses
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// 7. Delete account's media attachments
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// 8. Delete account's mentions
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// 9. Delete account's polls
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// 10. Delete account's notifications
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// 11. Delete account's bookmarks
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// 12. Delete account's faves
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// 13. Delete account's mutes
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// 14. Delete account's streams
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// 15. Delete account's tags
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// 16. Delete account's user
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// 17. Delete account's timeline
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// 18. Delete account itself
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func (p *processor) Delete(ctx context.Context, account *gtsmodel.Account, origin string) gtserror.WithCode {
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fields := kv.Fields{
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{"username", account.Username},
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}
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if account.Domain != "" {
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fields = append(fields, kv.Field{
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"domain", account.Domain,
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})
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}
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l := log.WithFields(fields...)
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l.Debug("beginning account delete process")
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// 1. Delete account's application(s), clients, and oauth tokens
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// we only need to do this step for local account since remote ones won't have any tokens or applications on our server
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if account.Domain == "" {
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// see if we can get a user for this account
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u := >smodel.User{}
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if err := p.db.GetWhere(ctx, []db.Where{{Key: "account_id", Value: account.ID}}, u); err == nil {
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// we got one! select all tokens with the user's ID
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tokens := []*gtsmodel.Token{}
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if err := p.db.GetWhere(ctx, []db.Where{{Key: "user_id", Value: u.ID}}, &tokens); err == nil {
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// we have some tokens to delete
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for _, t := range tokens {
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// delete client(s) associated with this token
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if err := p.db.DeleteByID(ctx, t.ClientID, >smodel.Client{}); err != nil {
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l.Errorf("error deleting oauth client: %s", err)
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}
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// delete application(s) associated with this token
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if err := p.db.DeleteWhere(ctx, []db.Where{{Key: "client_id", Value: t.ClientID}}, >smodel.Application{}); err != nil {
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l.Errorf("error deleting application: %s", err)
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}
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// delete the token itself
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if err := p.db.DeleteByID(ctx, t.ID, t); err != nil {
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l.Errorf("error deleting oauth token: %s", err)
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}
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}
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}
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}
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}
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// 2. Delete account's blocks
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l.Debug("deleting account blocks")
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// first delete any blocks that this account created
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if err := p.db.DeleteWhere(ctx, []db.Where{{Key: "account_id", Value: account.ID}}, &[]*gtsmodel.Block{}); err != nil {
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l.Errorf("error deleting blocks created by account: %s", err)
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}
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// now delete any blocks that target this account
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if err := p.db.DeleteWhere(ctx, []db.Where{{Key: "target_account_id", Value: account.ID}}, &[]*gtsmodel.Block{}); err != nil {
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l.Errorf("error deleting blocks targeting account: %s", err)
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}
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// 3. Delete account's emoji
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// nothing to do here
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// 4. Delete account's follow requests
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// TODO: federate these if necessary
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l.Debug("deleting account follow requests")
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// first delete any follow requests that this account created
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if err := p.db.DeleteWhere(ctx, []db.Where{{Key: "account_id", Value: account.ID}}, &[]*gtsmodel.FollowRequest{}); err != nil {
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l.Errorf("error deleting follow requests created by account: %s", err)
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}
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// now delete any follow requests that target this account
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if err := p.db.DeleteWhere(ctx, []db.Where{{Key: "target_account_id", Value: account.ID}}, &[]*gtsmodel.FollowRequest{}); err != nil {
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l.Errorf("error deleting follow requests targeting account: %s", err)
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}
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// 5. Delete account's follows
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// TODO: federate these if necessary
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l.Debug("deleting account follows")
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// first delete any follows that this account created
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if err := p.db.DeleteWhere(ctx, []db.Where{{Key: "account_id", Value: account.ID}}, &[]*gtsmodel.Follow{}); err != nil {
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l.Errorf("error deleting follows created by account: %s", err)
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}
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// now delete any follows that target this account
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if err := p.db.DeleteWhere(ctx, []db.Where{{Key: "target_account_id", Value: account.ID}}, &[]*gtsmodel.Follow{}); err != nil {
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l.Errorf("error deleting follows targeting account: %s", err)
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}
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// 6. Delete account's statuses
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l.Debug("deleting account statuses")
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// we'll select statuses 20 at a time so we don't wreck the db, and pass them through to the client api channel
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// Deleting the statuses in this way also handles 7. Delete account's media attachments, 8. Delete account's mentions, and 9. Delete account's polls,
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// since these are all attached to statuses.
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var maxID string
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selectStatusesLoop:
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for {
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statuses, err := p.db.GetAccountStatuses(ctx, account.ID, 20, false, false, maxID, "", false, false, false)
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if err != nil {
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if errors.Is(err, db.ErrNoEntries) {
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// no statuses left for this instance so we're done
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l.Infof("Delete: done iterating through statuses for account %s", account.Username)
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break selectStatusesLoop
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}
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// an actual error has occurred
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l.Errorf("Delete: db error selecting statuses for account %s: %s", account.Username, err)
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break selectStatusesLoop
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}
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for i, s := range statuses {
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// pass the status delete through the client api channel for processing
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s.Account = account
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l.Debug("putting status in the client api channel")
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p.clientWorker.Queue(messages.FromClientAPI{
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APObjectType: ap.ObjectNote,
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APActivityType: ap.ActivityDelete,
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GTSModel: s,
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OriginAccount: account,
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TargetAccount: account,
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})
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if err := p.db.DeleteByID(ctx, s.ID, s); err != nil {
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if !errors.Is(err, db.ErrNoEntries) {
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// actual error has occurred
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l.Errorf("Delete: db error deleting status %s for account %s: %s", s.ID, account.Username, err)
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continue
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}
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}
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// if there are any boosts of this status, delete them as well
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boosts := []*gtsmodel.Status{}
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if err := p.db.GetWhere(ctx, []db.Where{{Key: "boost_of_id", Value: s.ID}}, &boosts); err != nil {
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if !errors.Is(err, db.ErrNoEntries) {
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// an actual error has occurred
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l.Errorf("Delete: db error selecting boosts of status %s for account %s: %s", s.ID, account.Username, err)
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continue
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}
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}
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for _, b := range boosts {
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if b.Account == nil {
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bAccount, err := p.db.GetAccountByID(ctx, b.AccountID)
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if err != nil {
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l.Errorf("Delete: db error populating boosted status account: %v", err)
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continue
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}
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b.Account = bAccount
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}
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l.Debug("putting boost undo in the client api channel")
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p.clientWorker.Queue(messages.FromClientAPI{
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APObjectType: ap.ActivityAnnounce,
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APActivityType: ap.ActivityUndo,
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GTSModel: s,
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OriginAccount: b.Account,
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TargetAccount: account,
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})
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if err := p.db.DeleteByID(ctx, b.ID, b); err != nil {
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if err != db.ErrNoEntries {
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// actual error has occurred
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l.Errorf("Delete: db error deleting boost with id %s: %s", b.ID, err)
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continue
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}
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}
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}
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// if this is the last status in the slice, set the maxID appropriately for the next query
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if i == len(statuses)-1 {
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maxID = s.ID
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}
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}
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}
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l.Debug("done deleting statuses")
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// 10. Delete account's notifications
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l.Debug("deleting account notifications")
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// first notifications created by account
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if err := p.db.DeleteWhere(ctx, []db.Where{{Key: "origin_account_id", Value: account.ID}}, &[]*gtsmodel.Notification{}); err != nil {
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l.Errorf("error deleting notifications created by account: %s", err)
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}
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// now notifications targeting account
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if err := p.db.DeleteWhere(ctx, []db.Where{{Key: "target_account_id", Value: account.ID}}, &[]*gtsmodel.Notification{}); err != nil {
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l.Errorf("error deleting notifications targeting account: %s", err)
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}
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// 11. Delete account's bookmarks
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l.Debug("deleting account bookmarks")
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if err := p.db.DeleteWhere(ctx, []db.Where{{Key: "account_id", Value: account.ID}}, &[]*gtsmodel.StatusBookmark{}); err != nil {
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l.Errorf("error deleting bookmarks created by account: %s", err)
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}
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// 12. Delete account's faves
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// TODO: federate these if necessary
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l.Debug("deleting account faves")
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if err := p.db.DeleteWhere(ctx, []db.Where{{Key: "account_id", Value: account.ID}}, &[]*gtsmodel.StatusFave{}); err != nil {
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l.Errorf("error deleting faves created by account: %s", err)
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}
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// 13. Delete account's mutes
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l.Debug("deleting account mutes")
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if err := p.db.DeleteWhere(ctx, []db.Where{{Key: "account_id", Value: account.ID}}, &[]*gtsmodel.StatusMute{}); err != nil {
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l.Errorf("error deleting status mutes created by account: %s", err)
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}
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// 14. Delete account's streams
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// TODO
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// 15. Delete account's tags
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// TODO
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// 16. Delete account's user
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l.Debug("deleting account user")
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if err := p.db.DeleteWhere(ctx, []db.Where{{Key: "account_id", Value: account.ID}}, >smodel.User{}); err != nil {
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return gtserror.NewErrorInternalError(err)
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}
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// 17. Delete account's timeline
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// TODO
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// 18. Delete account itself
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// to prevent the account being created again, set all these fields and update it in the db
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// the account won't actually be *removed* from the database but it will be set to just a stub
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account.Note = ""
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account.DisplayName = ""
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account.AvatarMediaAttachmentID = ""
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account.AvatarRemoteURL = ""
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account.HeaderMediaAttachmentID = ""
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account.HeaderRemoteURL = ""
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account.Reason = ""
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account.Fields = []gtsmodel.Field{}
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hideCollections := true
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account.HideCollections = &hideCollections
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discoverable := false
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account.Discoverable = &discoverable
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account.SuspendedAt = time.Now()
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account.SuspensionOrigin = origin
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account, err := p.db.UpdateAccount(ctx, account)
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if err != nil {
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return gtserror.NewErrorInternalError(err)
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}
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l.Infof("deleted account with username %s from domain %s", account.Username, account.Domain)
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return nil
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}
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func (p *processor) DeleteLocal(ctx context.Context, account *gtsmodel.Account, form *apimodel.AccountDeleteRequest) gtserror.WithCode {
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fromClientAPIMessage := messages.FromClientAPI{
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APObjectType: ap.ActorPerson,
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APActivityType: ap.ActivityDelete,
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TargetAccount: account,
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}
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if form.DeleteOriginID == account.ID {
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// the account owner themself has requested deletion via the API, get their user from the db
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user := >smodel.User{}
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if err := p.db.GetWhere(ctx, []db.Where{{Key: "account_id", Value: account.ID}}, user); err != nil {
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return gtserror.NewErrorInternalError(err)
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}
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// now check that the password they supplied is correct
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// make sure a password is actually set and bail if not
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if user.EncryptedPassword == "" {
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return gtserror.NewErrorForbidden(errors.New("user password was not set"))
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}
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// compare the provided password with the encrypted one from the db, bail if they don't match
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if err := bcrypt.CompareHashAndPassword([]byte(user.EncryptedPassword), []byte(form.Password)); err != nil {
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return gtserror.NewErrorForbidden(errors.New("invalid password"))
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}
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fromClientAPIMessage.OriginAccount = account
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} else {
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// the delete has been requested by some other account, grab it;
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// if we've reached this point we know it has permission already
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requestingAccount, err := p.db.GetAccountByID(ctx, form.DeleteOriginID)
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if err != nil {
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return gtserror.NewErrorInternalError(err)
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}
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fromClientAPIMessage.OriginAccount = requestingAccount
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}
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// put the delete in the processor queue to handle the rest of it asynchronously
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p.clientWorker.Queue(fromClientAPIMessage)
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return nil
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}
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