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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 admin
import (
"context"
"errors"
"fmt"
"strings"
"time"
"codeberg.org/gruf/go-kv"
"github.com/superseriousbusiness/gotosocial/internal/ap"
apimodel "github.com/superseriousbusiness/gotosocial/internal/api/model"
"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/log"
"github.com/superseriousbusiness/gotosocial/internal/messages"
"github.com/superseriousbusiness/gotosocial/internal/text"
)
func (p *processor) DomainBlockCreate(ctx context.Context, account *gtsmodel.Account, domain string, obfuscate bool, publicComment string, privateComment string, subscriptionID string) (*apimodel.DomainBlock, gtserror.WithCode) {
// domain blocks will always be lowercase
domain = strings.ToLower(domain)
// first check if we already have a block -- if err == nil we already had a block so we can skip a whole lot of work
block, err := p.db.GetDomainBlock(ctx, domain)
if err != nil {
if !errors.Is(err, db.ErrNoEntries) {
// something went wrong in the DB
return nil, gtserror.NewErrorInternalError(fmt.Errorf("db error checking for existence of domain block %s: %s", domain, err))
}
// there's no block for this domain yet so create one
// note: we take a new ulid from timestamp here in case we need to sort blocks
blockID, err := id.NewULID()
if err != nil {
return nil, gtserror.NewErrorInternalError(fmt.Errorf("error creating id for new domain block %s: %s", domain, err))
}
newBlock := >smodel.DomainBlock{
ID: blockID,
Domain: domain,
CreatedByAccountID: account.ID,
PrivateComment: text.SanitizePlaintext(privateComment),
PublicComment: text.SanitizePlaintext(publicComment),
Obfuscate: &obfuscate,
SubscriptionID: subscriptionID,
}
// Insert the new block into the database
if err := p.db.CreateDomainBlock(ctx, newBlock); err != nil {
return nil, gtserror.NewErrorInternalError(fmt.Errorf("db error putting new domain block %s: %s", domain, err))
}
// Set the newly created block
block = newBlock
// Process the side effects of the domain block asynchronously since it might take a while
go func() {
p.initiateDomainBlockSideEffects(context.Background(), account, block)
}()
}
// Convert our gts model domain block into an API model
apiDomainBlock, err := p.tc.DomainBlockToAPIDomainBlock(ctx, block, false)
if err != nil {
return nil, gtserror.NewErrorInternalError(fmt.Errorf("error converting domain block to frontend/api representation %s: %s", domain, err))
}
return apiDomainBlock, nil
}
// initiateDomainBlockSideEffects should be called asynchronously, to process the side effects of a domain block:
//
// 1. Strip most info away from the instance entry for the domain.
// 2. Delete the instance account for that instance if it exists.
// 3. Select all accounts from this instance and pass them through the delete functionality of the processor.
func (p *processor) initiateDomainBlockSideEffects(ctx context.Context, account *gtsmodel.Account, block *gtsmodel.DomainBlock) {
l := log.WithFields(kv.Fields{
{"domain", block.Domain},
}...)
l.Debug("processing domain block side effects")
// if we have an instance entry for this domain, update it with the new block ID and clear all fields
instance := >smodel.Instance{}
if err := p.db.GetWhere(ctx, []db.Where{{Key: "domain", Value: block.Domain}}, instance); err == nil {
updatingColumns := []string{
"title",
"updated_at",
"suspended_at",
"domain_block_id",
"short_description",
"description",
"terms",
"contact_email",
"contact_account_username",
"contact_account_id",
"version",
}
instance.Title = ""
instance.UpdatedAt = time.Now()
instance.SuspendedAt = time.Now()
instance.DomainBlockID = block.ID
instance.ShortDescription = ""
instance.Description = ""
instance.Terms = ""
instance.ContactEmail = ""
instance.ContactAccountUsername = ""
instance.ContactAccountID = ""
instance.Version = ""
if err := p.db.UpdateByID(ctx, instance, instance.ID, updatingColumns...); err != nil {
l.Errorf("domainBlockProcessSideEffects: db error updating instance: %s", err)
}
l.Debug("domainBlockProcessSideEffects: instance entry updated")
}
// if we have an instance account for this instance, delete it
if instanceAccount, err := p.db.GetAccountByUsernameDomain(ctx, block.Domain, block.Domain); err == nil {
if err := p.db.DeleteAccount(ctx, instanceAccount.ID); err != nil {
l.Errorf("domainBlockProcessSideEffects: db error deleting instance account: %s", err)
}
}
// delete accounts through the normal account deletion system (which should also delete media + posts + remove posts from timelines)
limit := 20 // just select 20 accounts at a time so we don't nuke our DB/mem with one huge query
var maxID string // this is initially an empty string so we'll start at the top of accounts list (sorted by ID)
selectAccountsLoop:
for {
accounts, err := p.db.GetInstanceAccounts(ctx, block.Domain, maxID, limit)
if err != nil {
if err == db.ErrNoEntries {
// no accounts left for this instance so we're done
l.Infof("domainBlockProcessSideEffects: done iterating through accounts for domain %s", block.Domain)
break selectAccountsLoop
}
// an actual error has occurred
l.Errorf("domainBlockProcessSideEffects: db error selecting accounts for domain %s: %s", block.Domain, err)
break selectAccountsLoop
}
for i, a := range accounts {
l.Debugf("putting delete for account %s in the clientAPI channel", a.Username)
// pass the account delete through the client api channel for processing
p.clientWorker.Queue(messages.FromClientAPI{
APObjectType: ap.ActorPerson,
APActivityType: ap.ActivityDelete,
GTSModel: block,
OriginAccount: account,
TargetAccount: a,
})
// if this is the last account in the slice, set the maxID appropriately for the next query
if i == len(accounts)-1 {
maxID = a.ID
}
}
}
}
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