5 files changed, 436 insertions, 0 deletions

diff --git a/internal/db/bundb/migrations/20240528071620_add_user_mutes.go b/internal/db/bundb/migrations/20240528071620_add_user_mutes.go
new file mode 100644
index 000000000..e92e4df5b
--- /dev/null
+++ b/internal/db/bundb/migrations/20240528071620_add_user_mutes.go
@@ -0,0 +1,61 @@
+// 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 migrations
+
+import (
+	"context"
+
+	gtsmodel "github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
+	"github.com/uptrace/bun"
+)
+
+func init() {
+	up := func(ctx context.Context, db *bun.DB) error {
+		return db.RunInTx(ctx, nil, func(ctx context.Context, tx bun.Tx) error {
+			if _, err := tx.
+				NewCreateTable().
+				Model(&gtsmodel.UserMute{}).
+				IfNotExists().
+				Exec(ctx); err != nil {
+				return err
+			}
+
+			if _, err := tx.
+				NewCreateIndex().
+				Table("user_mutes").
+				Index("user_mutes_account_id_idx").
+				Column("account_id").
+				IfNotExists().
+				Exec(ctx); err != nil {
+				return err
+			}
+
+			return nil
+		})
+	}
+
+	down := func(ctx context.Context, db *bun.DB) error {
+		return db.RunInTx(ctx, nil, func(ctx context.Context, tx bun.Tx) error {
+			return nil
+		})
+	}
+
+	if err := Migrations.Register(up, down); err != nil {
+		panic(err)
+	}
+}
diff --git a/internal/db/bundb/relationship.go b/internal/db/bundb/relationship.go
index 052f29cb3..cb820d5c4 100644
--- a/internal/db/bundb/relationship.go
+++ b/internal/db/bundb/relationship.go
@@ -20,6 +20,7 @@ package bundb
 import (
 	"context"
 	"errors"
+	"time"
 
 	"github.com/superseriousbusiness/gotosocial/internal/db"
 	"github.com/superseriousbusiness/gotosocial/internal/gtscontext"
@@ -108,6 +109,16 @@ func (r *relationshipDB) GetRelationship(ctx context.Context, requestingAccount
 		rel.Note = note.Comment
 	}
 
+	// check if the requesting account is muting the target account
+	mute, err := r.GetMute(ctx, requestingAccount, targetAccount)
+	if err != nil && !errors.Is(err, db.ErrNoEntries) {
+		return nil, gtserror.Newf("error checking muting: %w", err)
+	}
+	if mute != nil && !mute.Expired(time.Now()) {
+		rel.Muting = true
+		rel.MutingNotifications = *mute.Notifications
+	}
+
 	return &rel, nil
 }
 
diff --git a/internal/db/bundb/relationship_mute.go b/internal/db/bundb/relationship_mute.go
new file mode 100644
index 000000000..3c664cbd7
--- /dev/null
+++ b/internal/db/bundb/relationship_mute.go
@@ -0,0 +1,306 @@
+// 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 bundb
+
+import (
+	"context"
+	"errors"
+	"slices"
+
+	"github.com/superseriousbusiness/gotosocial/internal/db"
+	"github.com/superseriousbusiness/gotosocial/internal/gtscontext"
+	"github.com/superseriousbusiness/gotosocial/internal/gtserror"
+	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
+	"github.com/superseriousbusiness/gotosocial/internal/log"
+	"github.com/superseriousbusiness/gotosocial/internal/paging"
+	"github.com/superseriousbusiness/gotosocial/internal/util"
+	"github.com/uptrace/bun"
+	"github.com/uptrace/bun/dialect"
+)
+
+func (r *relationshipDB) IsMuted(ctx context.Context, sourceAccountID string, targetAccountID string) (bool, error) {
+	mute, err := r.GetMute(
+		gtscontext.SetBarebones(ctx),
+		sourceAccountID,
+		targetAccountID,
+	)
+	if err != nil && !errors.Is(err, db.ErrNoEntries) {
+		return false, err
+	}
+	return mute != nil, nil
+}
+
+func (r *relationshipDB) GetMuteByID(ctx context.Context, id string) (*gtsmodel.UserMute, error) {
+	return r.getMute(
+		ctx,
+		"ID",
+		func(mute *gtsmodel.UserMute) error {
+			return r.db.NewSelect().Model(mute).
+				Where("? = ?", bun.Ident("id"), id).
+				Scan(ctx)
+		},
+		id,
+	)
+}
+
+func (r *relationshipDB) GetMute(
+	ctx context.Context,
+	sourceAccountID string,
+	targetAccountID string,
+) (*gtsmodel.UserMute, error) {
+	return r.getMute(
+		ctx,
+		"AccountID,TargetAccountID",
+		func(mute *gtsmodel.UserMute) error {
+			return r.db.NewSelect().Model(mute).
+				Where("? = ?", bun.Ident("account_id"), sourceAccountID).
+				Where("? = ?", bun.Ident("target_account_id"), targetAccountID).
+				Scan(ctx)
+		},
+		sourceAccountID,
+		targetAccountID,
+	)
+}
+
+func (r *relationshipDB) getMutesByIDs(ctx context.Context, ids []string) ([]*gtsmodel.UserMute, error) {
+	// Load all mutes IDs via cache loader callbacks.
+	mutes, err := r.state.Caches.GTS.UserMute.LoadIDs("ID",
+		ids,
+		func(uncached []string) ([]*gtsmodel.UserMute, error) {
+			// Preallocate expected length of uncached mutes.
+			mutes := make([]*gtsmodel.UserMute, 0, len(uncached))
+
+			// Perform database query scanning
+			// the remaining (uncached) IDs.
+			if err := r.db.NewSelect().
+				Model(&mutes).
+				Where("? IN (?)", bun.Ident("id"), bun.In(uncached)).
+				Scan(ctx); err != nil {
+				return nil, err
+			}
+
+			return mutes, nil
+		},
+	)
+	if err != nil {
+		return nil, err
+	}
+
+	// Reorder the mutes by their
+	// IDs to ensure in correct order.
+	getID := func(b *gtsmodel.UserMute) string { return b.ID }
+	util.OrderBy(mutes, ids, getID)
+
+	if gtscontext.Barebones(ctx) {
+		// no need to fully populate.
+		return mutes, nil
+	}
+
+	// Populate all loaded mutes, removing those we fail to
+	// populate (removes needing so many nil checks everywhere).
+	mutes = slices.DeleteFunc(mutes, func(mute *gtsmodel.UserMute) bool {
+		if err := r.populateMute(ctx, mute); err != nil {
+			log.Errorf(ctx, "error populating mute %s: %v", mute.ID, err)
+			return true
+		}
+		return false
+	})
+
+	return mutes, nil
+}
+
+func (r *relationshipDB) getMute(
+	ctx context.Context,
+	lookup string,
+	dbQuery func(*gtsmodel.UserMute) error,
+	keyParts ...any,
+) (*gtsmodel.UserMute, error) {
+	// Fetch mute from cache with loader callback
+	mute, err := r.state.Caches.GTS.UserMute.LoadOne(lookup, func() (*gtsmodel.UserMute, error) {
+		var mute gtsmodel.UserMute
+
+		// Not cached! Perform database query
+		if err := dbQuery(&mute); err != nil {
+			return nil, err
+		}
+
+		return &mute, nil
+	}, keyParts...)
+	if err != nil {
+		// already processe
+		return nil, err
+	}
+
+	if gtscontext.Barebones(ctx) {
+		// Only a barebones model was requested.
+		return mute, nil
+	}
+
+	if err := r.populateMute(ctx, mute); err != nil {
+		return nil, err
+	}
+
+	return mute, nil
+}
+
+func (r *relationshipDB) populateMute(ctx context.Context, mute *gtsmodel.UserMute) error {
+	var (
+		errs gtserror.MultiError
+		err  error
+	)
+
+	if mute.Account == nil {
+		// Mute origin account is not set, fetch from database.
+		mute.Account, err = r.state.DB.GetAccountByID(
+			gtscontext.SetBarebones(ctx),
+			mute.AccountID,
+		)
+		if err != nil {
+			errs.Appendf("error populating mute account: %w", err)
+		}
+	}
+
+	if mute.TargetAccount == nil {
+		// Mute target account is not set, fetch from database.
+		mute.TargetAccount, err = r.state.DB.GetAccountByID(
+			gtscontext.SetBarebones(ctx),
+			mute.TargetAccountID,
+		)
+		if err != nil {
+			errs.Appendf("error populating mute target account: %w", err)
+		}
+	}
+
+	return errs.Combine()
+}
+
+func (r *relationshipDB) PutMute(ctx context.Context, mute *gtsmodel.UserMute) error {
+	return r.state.Caches.GTS.UserMute.Store(mute, func() error {
+		_, err := NewUpsert(r.db).Model(mute).Constraint("id").Exec(ctx)
+		return err
+	})
+}
+
+func (r *relationshipDB) DeleteMuteByID(ctx context.Context, id string) error {
+	// Load mute into cache before attempting a delete,
+	// as we need it cached in order to trigger the invalidate
+	// callback. This in turn invalidates others.
+	_, err := r.GetMuteByID(gtscontext.SetBarebones(ctx), id)
+	if err != nil {
+		if errors.Is(err, db.ErrNoEntries) {
+			// not an issue.
+			err = nil
+		}
+		return err
+	}
+
+	// Drop this now-cached mute on return after delete.
+	defer r.state.Caches.GTS.UserMute.Invalidate("ID", id)
+
+	// Finally delete mute from DB.
+	_, err = r.db.NewDelete().
+		Table("user_mutes").
+		Where("? = ?", bun.Ident("id"), id).
+		Exec(ctx)
+	return err
+}
+
+func (r *relationshipDB) DeleteAccountMutes(ctx context.Context, accountID string) error {
+	var muteIDs []string
+
+	// Get full list of IDs.
+	if err := r.db.NewSelect().
+		Column("id").
+		Table("user_mutes").
+		WhereOr("? = ? OR ? = ?",
+			bun.Ident("account_id"),
+			accountID,
+			bun.Ident("target_account_id"),
+			accountID,
+		).
+		Scan(ctx, &muteIDs); err != nil {
+		return err
+	}
+
+	defer func() {
+		// Invalidate all account's incoming / outoing mutes on return.
+		r.state.Caches.GTS.UserMute.Invalidate("AccountID", accountID)
+		r.state.Caches.GTS.UserMute.Invalidate("TargetAccountID", accountID)
+	}()
+
+	// Load all mutes into cache, this *really* isn't great
+	// but it is the only way we can ensure we invalidate all
+	// related caches correctly (e.g. visibility).
+	_, err := r.GetAccountMutes(ctx, accountID, nil)
+	if err != nil && !errors.Is(err, db.ErrNoEntries) {
+		return err
+	}
+
+	// Finally delete all from DB.
+	_, err = r.db.NewDelete().
+		Table("user_mutes").
+		Where("? IN (?)", bun.Ident("id"), bun.In(muteIDs)).
+		Exec(ctx)
+	return err
+}
+
+func (r *relationshipDB) GetAccountMutes(
+	ctx context.Context,
+	accountID string,
+	page *paging.Page,
+) ([]*gtsmodel.UserMute, error) {
+	muteIDs, err := r.getAccountMuteIDs(ctx, accountID, page)
+	if err != nil {
+		return nil, err
+	}
+	return r.getMutesByIDs(ctx, muteIDs)
+}
+
+func (r *relationshipDB) getAccountMuteIDs(ctx context.Context, accountID string, page *paging.Page) ([]string, error) {
+	return loadPagedIDs(&r.state.Caches.GTS.UserMuteIDs, accountID, page, func() ([]string, error) {
+		var muteIDs []string
+
+		// Mute IDs not in cache. Perform DB query.
+		if _, err := r.db.
+			NewSelect().
+			TableExpr("?", bun.Ident("user_mutes")).
+			ColumnExpr("?", bun.Ident("id")).
+			Where("? = ?", bun.Ident("account_id"), accountID).
+			WhereGroup(" AND ", func(q *bun.SelectQuery) *bun.SelectQuery {
+				var notYetExpiredSQL string
+				switch r.db.Dialect().Name() {
+				case dialect.SQLite:
+					notYetExpiredSQL = "? > DATE('now')"
+				case dialect.PG:
+					notYetExpiredSQL = "? > NOW()"
+				default:
+					log.Panicf(nil, "db conn %s was neither pg nor sqlite", r.db)
+				}
+				return q.
+					Where("? IS NULL", bun.Ident("expires_at")).
+					WhereOr(notYetExpiredSQL, bun.Ident("expires_at"))
+			}).
+			OrderExpr("? DESC", bun.Ident("id")).
+			Exec(ctx, &muteIDs); // nocollapse
+		err != nil && !errors.Is(err, db.ErrNoEntries) {
+			return nil, err
+		}
+
+		return muteIDs, nil
+	})
+}
diff --git a/internal/db/bundb/relationship_test.go b/internal/db/bundb/relationship_test.go
index f1d1a35d2..46a4f1f25 100644
--- a/internal/db/bundb/relationship_test.go
+++ b/internal/db/bundb/relationship_test.go
@@ -510,6 +510,43 @@ func (suite *RelationshipTestSuite) TestDeleteAccountBlocks() {
 	suite.Nil(block)
 }
 
+func (suite *RelationshipTestSuite) TestDeleteAccountMutes() {
+	ctx := context.Background()
+
+	// Add a mute.
+	accountID1 := suite.testAccounts["local_account_1"].ID
+	accountID2 := suite.testAccounts["local_account_2"].ID
+	muteID := "01HZGZ3F3C7S1TTPE8F9VPZDCB"
+	err := suite.db.PutMute(ctx, &gtsmodel.UserMute{
+		ID:              muteID,
+		AccountID:       accountID1,
+		TargetAccountID: accountID2,
+	})
+	if err != nil {
+		suite.FailNow(err.Error())
+	}
+
+	// Make sure the mute is in the DB.
+	mute, err := suite.db.GetMute(ctx, accountID1, accountID2)
+	if err != nil {
+		suite.FailNow(err.Error())
+	}
+	if suite.NotNil(mute) {
+		suite.Equal(muteID, mute.ID)
+	}
+
+	// Delete all mutes owned by that account.
+	err = suite.db.DeleteAccountMutes(ctx, accountID1)
+	if err != nil {
+		suite.FailNow(err.Error())
+	}
+
+	// Mute should be gone.
+	mute, err = suite.db.GetMute(ctx, accountID1, accountID2)
+	suite.ErrorIs(err, db.ErrNoEntries)
+	suite.Nil(mute)
+}
+
 func (suite *RelationshipTestSuite) TestGetRelationship() {
 	requestingAccount := suite.testAccounts["local_account_1"]
 	targetAccount := suite.testAccounts["admin_account"]
diff --git a/internal/db/relationship.go b/internal/db/relationship.go
index cd4539791..5e0650fb7 100644
--- a/internal/db/relationship.go
+++ b/internal/db/relationship.go
@@ -187,4 +187,25 @@ type Relationship interface {
 
 	// PopulateNote populates the struct pointers on the given note.
 	PopulateNote(ctx context.Context, note *gtsmodel.AccountNote) error
+
+	// IsMuted checks whether source account has a mute in place against target.
+	IsMuted(ctx context.Context, sourceAccountID string, targetAccountID string) (bool, error)
+
+	// GetMuteByID fetches mute with given ID from the database.
+	GetMuteByID(ctx context.Context, id string) (*gtsmodel.UserMute, error)
+
+	// GetMute returns the mute from account1 targeting account2, if it exists, or an error if it doesn't.
+	GetMute(ctx context.Context, account1 string, account2 string) (*gtsmodel.UserMute, error)
+
+	// PutMute attempts to insert or update the given account mute in the database.
+	PutMute(ctx context.Context, mute *gtsmodel.UserMute) error
+
+	// DeleteMuteByID removes mute with given ID from the database.
+	DeleteMuteByID(ctx context.Context, id string) error
+
+	// DeleteAccountMutes will delete all database mutes to / from the given account ID.
+	DeleteAccountMutes(ctx context.Context, accountID string) error
+
+	// GetAccountMutes returns all mutes originating from the given account, with given optional paging parameters.
+	GetAccountMutes(ctx context.Context, accountID string, paging *paging.Page) ([]*gtsmodel.UserMute, error)
 }