Add possibility to ignore users (#2329)

* Add ignore users

* Ignore users in pushrules
Add passing tests

* Update sytest lists

* Store ignore knowledge in the sync API

* Fix copyrights

Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>

7 files changed, 201 insertions, 0 deletions

diff --git a/syncapi/storage/interface.go b/syncapi/storage/interface.go
index 0b3ab235..841f6726 100644
--- a/syncapi/storage/interface.go
+++ b/syncapi/storage/interface.go
@@ -150,6 +150,9 @@ type Database interface {
 	SelectContextAfterEvent(ctx context.Context, id int, roomID string, filter *gomatrixserverlib.RoomEventFilter) (int, []*gomatrixserverlib.HeaderedEvent, error)
 
 	StreamToTopologicalPosition(ctx context.Context, roomID string, streamPos types.StreamPosition, backwardOrdering bool) (types.TopologyToken, error)
+
+	IgnoresForUser(ctx context.Context, userID string) (*types.IgnoredUsers, error)
+	UpdateIgnoresForUser(ctx context.Context, userID string, ignores *types.IgnoredUsers) error
 }
 
 type Presence interface {
diff --git a/syncapi/storage/postgres/ignores_table.go b/syncapi/storage/postgres/ignores_table.go
new file mode 100644
index 00000000..055a1a23
--- /dev/null
+++ b/syncapi/storage/postgres/ignores_table.go
@@ -0,0 +1,87 @@
+// Copyright 2022 The Matrix.org Foundation C.I.C.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package postgres
+
+import (
+	"context"
+	"database/sql"
+	"encoding/json"
+
+	"github.com/matrix-org/dendrite/syncapi/storage/tables"
+	"github.com/matrix-org/dendrite/syncapi/types"
+)
+
+const ignoresSchema = `
+-- Stores data about ignoress
+CREATE TABLE IF NOT EXISTS syncapi_ignores (
+	-- The user ID whose ignore list this belongs to.
+	user_id TEXT NOT NULL,
+	ignores_json TEXT NOT NULL,
+	PRIMARY KEY(user_id)
+);
+`
+
+const selectIgnoresSQL = "" +
+	"SELECT ignores_json FROM syncapi_ignores WHERE user_id = $1"
+
+const upsertIgnoresSQL = "" +
+	"INSERT INTO syncapi_ignores (user_id, ignores_json) VALUES ($1, $2)" +
+	" ON CONFLICT (user_id) DO UPDATE set ignores_json = $2"
+
+type ignoresStatements struct {
+	selectIgnoresStmt *sql.Stmt
+	upsertIgnoresStmt *sql.Stmt
+}
+
+func NewPostgresIgnoresTable(db *sql.DB) (tables.Ignores, error) {
+	_, err := db.Exec(ignoresSchema)
+	if err != nil {
+		return nil, err
+	}
+	s := &ignoresStatements{}
+	if s.selectIgnoresStmt, err = db.Prepare(selectIgnoresSQL); err != nil {
+		return nil, err
+	}
+	if s.upsertIgnoresStmt, err = db.Prepare(upsertIgnoresSQL); err != nil {
+		return nil, err
+	}
+	return s, nil
+}
+
+func (s *ignoresStatements) SelectIgnores(
+	ctx context.Context, userID string,
+) (*types.IgnoredUsers, error) {
+	var ignoresData []byte
+	err := s.selectIgnoresStmt.QueryRowContext(ctx, userID).Scan(&ignoresData)
+	if err != nil {
+		return nil, err
+	}
+	var ignores types.IgnoredUsers
+	if err = json.Unmarshal(ignoresData, &ignores); err != nil {
+		return nil, err
+	}
+	return &ignores, nil
+}
+
+func (s *ignoresStatements) UpsertIgnores(
+	ctx context.Context, userID string, ignores *types.IgnoredUsers,
+) error {
+	ignoresJSON, err := json.Marshal(ignores)
+	if err != nil {
+		return err
+	}
+	_, err = s.upsertIgnoresStmt.ExecContext(ctx, userID, ignoresJSON)
+	return err
+}
diff --git a/syncapi/storage/postgres/syncserver.go b/syncapi/storage/postgres/syncserver.go
index 54445c7e..b0382512 100644
--- a/syncapi/storage/postgres/syncserver.go
+++ b/syncapi/storage/postgres/syncserver.go
@@ -90,6 +90,10 @@ func NewDatabase(dbProperties *config.DatabaseOptions) (*SyncServerDatasource, e
 	if err != nil {
 		return nil, err
 	}
+	ignores, err := NewPostgresIgnoresTable(d.db)
+	if err != nil {
+		return nil, err
+	}
 	presence, err := NewPostgresPresenceTable(d.db)
 	if err != nil {
 		return nil, err
@@ -115,6 +119,7 @@ func NewDatabase(dbProperties *config.DatabaseOptions) (*SyncServerDatasource, e
 		Receipts:            receipts,
 		Memberships:         memberships,
 		NotificationData:    notificationData,
+		Ignores:             ignores,
 		Presence:            presence,
 	}
 	return &d, nil
diff --git a/syncapi/storage/shared/syncserver.go b/syncapi/storage/shared/syncserver.go
index 7c4786fc..1c45d5d9 100644
--- a/syncapi/storage/shared/syncserver.go
+++ b/syncapi/storage/shared/syncserver.go
@@ -48,6 +48,7 @@ type Database struct {
 	Receipts            tables.Receipts
 	Memberships         tables.Memberships
 	NotificationData    tables.NotificationData
+	Ignores             tables.Ignores
 	Presence            tables.Presence
 }
 
@@ -1004,6 +1005,14 @@ func (s *Database) SelectContextAfterEvent(ctx context.Context, id int, roomID s
 	return s.OutputEvents.SelectContextAfterEvent(ctx, nil, id, roomID, filter)
 }
 
+func (s *Database) IgnoresForUser(ctx context.Context, userID string) (*types.IgnoredUsers, error) {
+	return s.Ignores.SelectIgnores(ctx, userID)
+}
+
+func (s *Database) UpdateIgnoresForUser(ctx context.Context, userID string, ignores *types.IgnoredUsers) error {
+	return s.Ignores.UpsertIgnores(ctx, userID, ignores)
+}
+
 func (s *Database) UpdatePresence(ctx context.Context, userID string, presence types.Presence, statusMsg *string, lastActiveTS gomatrixserverlib.Timestamp, fromSync bool) (types.StreamPosition, error) {
 	return s.Presence.UpsertPresence(ctx, nil, userID, statusMsg, presence, lastActiveTS, fromSync)
 }
diff --git a/syncapi/storage/sqlite3/ignores_table.go b/syncapi/storage/sqlite3/ignores_table.go
new file mode 100644
index 00000000..f4afca55
--- /dev/null
+++ b/syncapi/storage/sqlite3/ignores_table.go
@@ -0,0 +1,87 @@
+// Copyright 2022 The Matrix.org Foundation C.I.C.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package sqlite3
+
+import (
+	"context"
+	"database/sql"
+	"encoding/json"
+
+	"github.com/matrix-org/dendrite/syncapi/storage/tables"
+	"github.com/matrix-org/dendrite/syncapi/types"
+)
+
+const ignoresSchema = `
+-- Stores data about ignoress
+CREATE TABLE IF NOT EXISTS syncapi_ignores (
+	-- The user ID whose ignore list this belongs to.
+	user_id TEXT NOT NULL,
+	ignores_json TEXT NOT NULL,
+	PRIMARY KEY(user_id)
+);
+`
+
+const selectIgnoresSQL = "" +
+	"SELECT ignores_json FROM syncapi_ignores WHERE user_id = $1"
+
+const upsertIgnoresSQL = "" +
+	"INSERT INTO syncapi_ignores (user_id, ignores_json) VALUES ($1, $2)" +
+	" ON CONFLICT DO UPDATE set ignores_json = $2"
+
+type ignoresStatements struct {
+	selectIgnoresStmt *sql.Stmt
+	upsertIgnoresStmt *sql.Stmt
+}
+
+func NewSqliteIgnoresTable(db *sql.DB) (tables.Ignores, error) {
+	_, err := db.Exec(ignoresSchema)
+	if err != nil {
+		return nil, err
+	}
+	s := &ignoresStatements{}
+	if s.selectIgnoresStmt, err = db.Prepare(selectIgnoresSQL); err != nil {
+		return nil, err
+	}
+	if s.upsertIgnoresStmt, err = db.Prepare(upsertIgnoresSQL); err != nil {
+		return nil, err
+	}
+	return s, nil
+}
+
+func (s *ignoresStatements) SelectIgnores(
+	ctx context.Context, userID string,
+) (*types.IgnoredUsers, error) {
+	var ignoresData []byte
+	err := s.selectIgnoresStmt.QueryRowContext(ctx, userID).Scan(&ignoresData)
+	if err != nil {
+		return nil, err
+	}
+	var ignores types.IgnoredUsers
+	if err = json.Unmarshal(ignoresData, &ignores); err != nil {
+		return nil, err
+	}
+	return &ignores, nil
+}
+
+func (s *ignoresStatements) UpsertIgnores(
+	ctx context.Context, userID string, ignores *types.IgnoredUsers,
+) error {
+	ignoresJSON, err := json.Marshal(ignores)
+	if err != nil {
+		return err
+	}
+	_, err = s.upsertIgnoresStmt.ExecContext(ctx, userID, ignoresJSON)
+	return err
+}
diff --git a/syncapi/storage/sqlite3/syncserver.go b/syncapi/storage/sqlite3/syncserver.go
index cb2c3169..9d9d3598 100644
--- a/syncapi/storage/sqlite3/syncserver.go
+++ b/syncapi/storage/sqlite3/syncserver.go
@@ -100,6 +100,10 @@ func (d *SyncServerDatasource) prepare(dbProperties *config.DatabaseOptions) (er
 	if err != nil {
 		return err
 	}
+	ignores, err := NewSqliteIgnoresTable(d.db)
+	if err != nil {
+		return err
+	}
 	presence, err := NewSqlitePresenceTable(d.db, &d.streamID)
 	if err != nil {
 		return err
@@ -125,6 +129,7 @@ func (d *SyncServerDatasource) prepare(dbProperties *config.DatabaseOptions) (er
 		Receipts:            receipts,
 		Memberships:         memberships,
 		NotificationData:    notificationData,
+		Ignores:             ignores,
 		Presence:            presence,
 	}
 	return nil
diff --git a/syncapi/storage/tables/interface.go b/syncapi/storage/tables/interface.go
index ef0587bb..8d368eec 100644
--- a/syncapi/storage/tables/interface.go
+++ b/syncapi/storage/tables/interface.go
@@ -183,6 +183,11 @@ type NotificationData interface {
 	SelectMaxID(ctx context.Context) (int64, error)
 }
 
+type Ignores interface {
+	SelectIgnores(ctx context.Context, userID string) (*types.IgnoredUsers, error)
+	UpsertIgnores(ctx context.Context, userID string, ignores *types.IgnoredUsers) error
+}
+
 type Presence interface {
 	UpsertPresence(ctx context.Context, txn *sql.Tx, userID string, statusMsg *string, presence types.Presence, lastActiveTS gomatrixserverlib.Timestamp, fromSync bool) (pos types.StreamPosition, err error)
 	GetPresenceForUser(ctx context.Context, txn *sql.Tx, userID string) (presence *types.PresenceInternal, err error)