gotosocial/internal/processing/account/createblock.go
Tobi Smethurst 846057f0d6
Block/unblock (#96)
* remote + local block logic, incl. federation

* improve blocking stuff

* fiddle with display of blocked profiles

* go fmt
2021-07-11 16:22:21 +02:00

155 lines
5.8 KiB
Go

/*
GoToSocial
Copyright (C) 2021 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 (
"fmt"
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/util"
)
func (p *processor) BlockCreate(requestingAccount *gtsmodel.Account, targetAccountID string) (*apimodel.Relationship, gtserror.WithCode) {
// make sure the target account actually exists in our db
targetAcct := &gtsmodel.Account{}
if err := p.db.GetByID(targetAccountID, targetAcct); err != nil {
if _, ok := err.(db.ErrNoEntries); ok {
return nil, gtserror.NewErrorNotFound(fmt.Errorf("BlockCreate: account %s not found in the db: %s", targetAccountID, err))
}
}
// if requestingAccount already blocks target account, we don't need to do anything
block := &gtsmodel.Block{}
if err := p.db.GetWhere([]db.Where{
{Key: "account_id", Value: requestingAccount.ID},
{Key: "target_account_id", Value: targetAccountID},
}, block); err == nil {
// block already exists, just return relationship
return p.RelationshipGet(requestingAccount, targetAccountID)
}
// make the block
newBlockID, err := id.NewULID()
if err != nil {
return nil, gtserror.NewErrorInternalError(err)
}
block.ID = newBlockID
block.AccountID = requestingAccount.ID
block.Account = requestingAccount
block.TargetAccountID = targetAccountID
block.TargetAccount = targetAcct
block.URI = util.GenerateURIForBlock(requestingAccount.Username, p.config.Protocol, p.config.Host, newBlockID)
// whack it in the database
if err := p.db.Put(block); err != nil {
return nil, gtserror.NewErrorInternalError(fmt.Errorf("BlockCreate: error creating block in db: %s", err))
}
// clear any follows or follow requests from the blocked account to the target account -- this is a simple delete
if err := p.db.DeleteWhere([]db.Where{
{Key: "account_id", Value: targetAccountID},
{Key: "target_account_id", Value: requestingAccount.ID},
}, &gtsmodel.Follow{}); err != nil {
return nil, gtserror.NewErrorInternalError(fmt.Errorf("BlockCreate: error removing follow in db: %s", err))
}
if err := p.db.DeleteWhere([]db.Where{
{Key: "account_id", Value: targetAccountID},
{Key: "target_account_id", Value: requestingAccount.ID},
}, &gtsmodel.FollowRequest{}); err != nil {
return nil, gtserror.NewErrorInternalError(fmt.Errorf("BlockCreate: error removing follow in db: %s", err))
}
// clear any follows or follow requests from the requesting account to the target account --
// this might require federation so we need to pass some messages around
// check if a follow request exists from the requesting account to the target account, and remove it if it does (storing the URI for later)
var frChanged bool
var frURI string
fr := &gtsmodel.FollowRequest{}
if err := p.db.GetWhere([]db.Where{
{Key: "account_id", Value: requestingAccount.ID},
{Key: "target_account_id", Value: targetAccountID},
}, fr); err == nil {
frURI = fr.URI
if err := p.db.DeleteByID(fr.ID, fr); err != nil {
return nil, gtserror.NewErrorInternalError(fmt.Errorf("BlockCreate: error removing follow request from db: %s", err))
}
frChanged = true
}
// now do the same thing for any existing follow
var fChanged bool
var fURI string
f := &gtsmodel.Follow{}
if err := p.db.GetWhere([]db.Where{
{Key: "account_id", Value: requestingAccount.ID},
{Key: "target_account_id", Value: targetAccountID},
}, f); err == nil {
fURI = f.URI
if err := p.db.DeleteByID(f.ID, f); err != nil {
return nil, gtserror.NewErrorInternalError(fmt.Errorf("BlockCreate: error removing follow from db: %s", err))
}
fChanged = true
}
// follow request status changed so send the UNDO activity to the channel for async processing
if frChanged {
p.fromClientAPI <- gtsmodel.FromClientAPI{
APObjectType: gtsmodel.ActivityStreamsFollow,
APActivityType: gtsmodel.ActivityStreamsUndo,
GTSModel: &gtsmodel.Follow{
AccountID: requestingAccount.ID,
TargetAccountID: targetAccountID,
URI: frURI,
},
OriginAccount: requestingAccount,
TargetAccount: targetAcct,
}
}
// follow status changed so send the UNDO activity to the channel for async processing
if fChanged {
p.fromClientAPI <- gtsmodel.FromClientAPI{
APObjectType: gtsmodel.ActivityStreamsFollow,
APActivityType: gtsmodel.ActivityStreamsUndo,
GTSModel: &gtsmodel.Follow{
AccountID: requestingAccount.ID,
TargetAccountID: targetAccountID,
URI: fURI,
},
OriginAccount: requestingAccount,
TargetAccount: targetAcct,
}
}
// handle the rest of the block process asynchronously
p.fromClientAPI <- gtsmodel.FromClientAPI{
APObjectType: gtsmodel.ActivityStreamsBlock,
APActivityType: gtsmodel.ActivityStreamsCreate,
GTSModel: block,
OriginAccount: requestingAccount,
TargetAccount: targetAcct,
}
return p.RelationshipGet(requestingAccount, targetAccountID)
}