gotosocial/internal/db/bundb/relationship.go
2021-08-26 11:28:16 +02:00

321 lines
8.9 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 bundb
import (
"context"
"database/sql"
"fmt"
"github.com/sirupsen/logrus"
"github.com/superseriousbusiness/gotosocial/internal/config"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/uptrace/bun"
)
type relationshipDB struct {
config *config.Config
conn *bun.DB
log *logrus.Logger
}
func (r *relationshipDB) newBlockQ(block *gtsmodel.Block) *bun.SelectQuery {
return r.conn.
NewSelect().
Model(block).
Relation("Account").
Relation("TargetAccount")
}
func (r *relationshipDB) newFollowQ(follow interface{}) *bun.SelectQuery {
return r.conn.
NewSelect().
Model(follow).
Relation("Account").
Relation("TargetAccount")
}
func (r *relationshipDB) IsBlocked(ctx context.Context, account1 string, account2 string, eitherDirection bool) (bool, db.Error) {
q := r.conn.
NewSelect().
Model(&gtsmodel.Block{}).
Where("account_id = ?", account1).
Where("target_account_id = ?", account2).
Limit(1)
if eitherDirection {
q = q.
WhereOr("target_account_id = ?", account1).
Where("account_id = ?", account2)
}
return exists(ctx, q)
}
func (r *relationshipDB) GetBlock(ctx context.Context, account1 string, account2 string) (*gtsmodel.Block, db.Error) {
block := &gtsmodel.Block{}
q := r.newBlockQ(block).
Where("block.account_id = ?", account1).
Where("block.target_account_id = ?", account2)
err := processErrorResponse(q.Scan(ctx))
return block, err
}
func (r *relationshipDB) GetRelationship(ctx context.Context, requestingAccount string, targetAccount string) (*gtsmodel.Relationship, db.Error) {
rel := &gtsmodel.Relationship{
ID: targetAccount,
}
// check if the requesting account follows the target account
follow := &gtsmodel.Follow{}
if err := r.conn.
NewSelect().
Model(follow).
Where("account_id = ?", requestingAccount).
Where("target_account_id = ?", targetAccount).
Limit(1).
Scan(ctx); err != nil {
if err != sql.ErrNoRows {
// a proper error
return nil, fmt.Errorf("getrelationship: error checking follow existence: %s", err)
}
// no follow exists so these are all false
rel.Following = false
rel.ShowingReblogs = false
rel.Notifying = false
} else {
// follow exists so we can fill these fields out...
rel.Following = true
rel.ShowingReblogs = follow.ShowReblogs
rel.Notifying = follow.Notify
}
// check if the target account follows the requesting account
count, err := r.conn.
NewSelect().
Model(&gtsmodel.Follow{}).
Where("account_id = ?", targetAccount).
Where("target_account_id = ?", requestingAccount).
Limit(1).
Count(ctx)
if err != nil {
return nil, fmt.Errorf("getrelationship: error checking followed_by existence: %s", err)
}
rel.FollowedBy = count > 0
// check if the requesting account blocks the target account
count, err = r.conn.NewSelect().
Model(&gtsmodel.Block{}).
Where("account_id = ?", requestingAccount).
Where("target_account_id = ?", targetAccount).
Limit(1).
Count(ctx)
if err != nil {
return nil, fmt.Errorf("getrelationship: error checking blocking existence: %s", err)
}
rel.Blocking = count > 0
// check if the target account blocks the requesting account
count, err = r.conn.
NewSelect().
Model(&gtsmodel.Block{}).
Where("account_id = ?", targetAccount).
Where("target_account_id = ?", requestingAccount).
Limit(1).
Count(ctx)
if err != nil {
return nil, fmt.Errorf("getrelationship: error checking blocked existence: %s", err)
}
rel.BlockedBy = count > 0
// check if there's a pending following request from requesting account to target account
count, err = r.conn.
NewSelect().
Model(&gtsmodel.FollowRequest{}).
Where("account_id = ?", requestingAccount).
Where("target_account_id = ?", targetAccount).
Limit(1).
Count(ctx)
if err != nil {
return nil, fmt.Errorf("getrelationship: error checking blocked existence: %s", err)
}
rel.Requested = count > 0
return rel, nil
}
func (r *relationshipDB) IsFollowing(ctx context.Context, sourceAccount *gtsmodel.Account, targetAccount *gtsmodel.Account) (bool, db.Error) {
if sourceAccount == nil || targetAccount == nil {
return false, nil
}
q := r.conn.
NewSelect().
Model(&gtsmodel.Follow{}).
Where("account_id = ?", sourceAccount.ID).
Where("target_account_id = ?", targetAccount.ID).
Limit(1)
return exists(ctx, q)
}
func (r *relationshipDB) IsFollowRequested(ctx context.Context, sourceAccount *gtsmodel.Account, targetAccount *gtsmodel.Account) (bool, db.Error) {
if sourceAccount == nil || targetAccount == nil {
return false, nil
}
q := r.conn.
NewSelect().
Model(&gtsmodel.FollowRequest{}).
Where("account_id = ?", sourceAccount.ID).
Where("target_account_id = ?", targetAccount.ID)
return exists(ctx, q)
}
func (r *relationshipDB) IsMutualFollowing(ctx context.Context, account1 *gtsmodel.Account, account2 *gtsmodel.Account) (bool, db.Error) {
if account1 == nil || account2 == nil {
return false, nil
}
// make sure account 1 follows account 2
f1, err := r.IsFollowing(ctx, account1, account2)
if err != nil {
return false, processErrorResponse(err)
}
// make sure account 2 follows account 1
f2, err := r.IsFollowing(ctx, account2, account1)
if err != nil {
return false, processErrorResponse(err)
}
return f1 && f2, nil
}
func (r *relationshipDB) AcceptFollowRequest(ctx context.Context, originAccountID string, targetAccountID string) (*gtsmodel.Follow, db.Error) {
// make sure the original follow request exists
fr := &gtsmodel.FollowRequest{}
if err := r.conn.
NewSelect().
Model(fr).
Where("account_id = ?", originAccountID).
Where("target_account_id = ?", targetAccountID).
Scan(ctx); err != nil {
return nil, processErrorResponse(err)
}
// create a new follow to 'replace' the request with
follow := &gtsmodel.Follow{
ID: fr.ID,
AccountID: originAccountID,
TargetAccountID: targetAccountID,
URI: fr.URI,
}
// if the follow already exists, just update the URI -- we don't need to do anything else
if _, err := r.conn.
NewInsert().
Model(follow).
On("CONFLICT CONSTRAINT follows_account_id_target_account_id_key DO UPDATE set uri = ?", follow.URI).
Exec(ctx); err != nil {
return nil, processErrorResponse(err)
}
// now remove the follow request
if _, err := r.conn.
NewDelete().
Model(&gtsmodel.FollowRequest{}).
Where("account_id = ?", originAccountID).
Where("target_account_id = ?", targetAccountID).
Exec(ctx); err != nil {
return nil, processErrorResponse(err)
}
return follow, nil
}
func (r *relationshipDB) GetAccountFollowRequests(ctx context.Context, accountID string) ([]*gtsmodel.FollowRequest, db.Error) {
followRequests := []*gtsmodel.FollowRequest{}
q := r.newFollowQ(&followRequests).
Where("target_account_id = ?", accountID)
err := processErrorResponse(q.Scan(ctx))
return followRequests, err
}
func (r *relationshipDB) GetAccountFollows(ctx context.Context, accountID string) ([]*gtsmodel.Follow, db.Error) {
follows := []*gtsmodel.Follow{}
q := r.newFollowQ(&follows).
Where("account_id = ?", accountID)
err := processErrorResponse(q.Scan(ctx))
return follows, err
}
func (r *relationshipDB) CountAccountFollows(ctx context.Context, accountID string, localOnly bool) (int, db.Error) {
return r.conn.
NewSelect().
Model(&[]*gtsmodel.Follow{}).
Where("account_id = ?", accountID).
Count(ctx)
}
func (r *relationshipDB) GetAccountFollowedBy(ctx context.Context, accountID string, localOnly bool) ([]*gtsmodel.Follow, db.Error) {
follows := []*gtsmodel.Follow{}
q := r.conn.
NewSelect().
Model(&follows)
if localOnly {
q = q.ColumnExpr("follow.*").
Join("JOIN accounts AS a ON follow.account_id = TEXT(a.id)").
Where("follow.target_account_id = ?", accountID).
WhereGroup(" AND ", whereEmptyOrNull("a.domain"))
} else {
q = q.Where("target_account_id = ?", accountID)
}
if err := q.Scan(ctx); err != nil {
if err == sql.ErrNoRows {
return follows, nil
}
return nil, processErrorResponse(err)
}
return follows, nil
}
func (r *relationshipDB) CountAccountFollowedBy(ctx context.Context, accountID string, localOnly bool) (int, db.Error) {
return r.conn.
NewSelect().
Model(&[]*gtsmodel.Follow{}).
Where("target_account_id = ?", accountID).
Count(ctx)
}