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// Copyright 2023 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"
"time"
"github.com/matrix-org/dendrite/internal"
"github.com/matrix-org/dendrite/internal/sqlutil"
"github.com/matrix-org/dendrite/roomserver/api"
"github.com/matrix-org/dendrite/roomserver/storage/tables"
"github.com/matrix-org/dendrite/roomserver/types"
"github.com/matrix-org/gomatrixserverlib/spec"
)
const reportedEventsScheme = `
CREATE SEQUENCE IF NOT EXISTS roomserver_reported_events_id_seq;
CREATE TABLE IF NOT EXISTS roomserver_reported_events
(
id BIGINT PRIMARY KEY DEFAULT nextval('roomserver_reported_events_id_seq'),
room_nid BIGINT NOT NULL,
event_nid BIGINT NOT NULL,
reporting_user_nid BIGINT NOT NULL, -- the user reporting the event
event_sender_nid BIGINT NOT NULL, -- the user who sent the reported event
reason TEXT,
score INTEGER,
received_ts BIGINT NOT NULL
);`
const insertReportedEventSQL = `
INSERT INTO roomserver_reported_events (room_nid, event_nid, reporting_user_nid, event_sender_nid, reason, score, received_ts)
VALUES ($1, $2, $3, $4, $5, $6, $7)
RETURNING id
`
const selectReportedEventsDescSQL = `
WITH countReports AS (
SELECT count(*) as report_count
FROM roomserver_reported_events
WHERE ($1::BIGINT IS NULL OR room_nid = $1::BIGINT) AND ($2::TEXT IS NULL OR reporting_user_nid = $2::BIGINT)
)
SELECT report_count, id, room_nid, event_nid, reporting_user_nid, event_sender_nid, reason, score, received_ts
FROM roomserver_reported_events, countReports
WHERE ($1::BIGINT IS NULL OR room_nid = $1::BIGINT) AND ($2::TEXT IS NULL OR reporting_user_nid = $2::BIGINT)
ORDER BY received_ts DESC
OFFSET $3
LIMIT $4
`
const selectReportedEventsAscSQL = `
WITH countReports AS (
SELECT count(*) as report_count
FROM roomserver_reported_events
WHERE ($1::BIGINT IS NULL OR room_nid = $1::BIGINT) AND ($2::TEXT IS NULL OR reporting_user_nid = $2::BIGINT)
)
SELECT report_count, id, room_nid, event_nid, reporting_user_nid, event_sender_nid, reason, score, received_ts
FROM roomserver_reported_events, countReports
WHERE ($1::BIGINT IS NULL OR room_nid = $1::BIGINT) AND ($2::TEXT IS NULL OR reporting_user_nid = $2::BIGINT)
ORDER BY received_ts ASC
OFFSET $3
LIMIT $4
`
type reportedEventsStatements struct {
insertReportedEventsStmt *sql.Stmt
selectReportedEventsDescStmt *sql.Stmt
selectReportedEventsAscStmt *sql.Stmt
}
func CreateReportedEventsTable(db *sql.DB) error {
_, err := db.Exec(reportedEventsScheme)
return err
}
func PrepareReportedEventsTable(db *sql.DB) (tables.ReportedEvents, error) {
s := &reportedEventsStatements{}
return s, sqlutil.StatementList{
{&s.insertReportedEventsStmt, insertReportedEventSQL},
{&s.selectReportedEventsDescStmt, selectReportedEventsDescSQL},
{&s.selectReportedEventsAscStmt, selectReportedEventsAscSQL},
}.Prepare(db)
}
func (r *reportedEventsStatements) InsertReportedEvent(
ctx context.Context,
txn *sql.Tx,
roomNID types.RoomNID,
eventNID types.EventNID,
reportingUserID types.EventStateKeyNID,
eventSenderID types.EventStateKeyNID,
reason string,
score int64,
) (int64, error) {
stmt := sqlutil.TxStmt(txn, r.insertReportedEventsStmt)
var reportID int64
err := stmt.QueryRowContext(ctx,
roomNID,
eventNID,
reportingUserID,
eventSenderID,
reason,
score,
spec.AsTimestamp(time.Now()),
).Scan(&reportID)
return reportID, err
}
func (r *reportedEventsStatements) SelectReportedEvents(
ctx context.Context,
txn *sql.Tx,
from, limit uint64,
backwards bool,
reportingUserID types.EventStateKeyNID,
roomNID types.RoomNID,
) ([]api.QueryAdminEventReportsResponse, int64, error) {
var stmt *sql.Stmt
if backwards {
stmt = sqlutil.TxStmt(txn, r.selectReportedEventsDescStmt)
} else {
stmt = sqlutil.TxStmt(txn, r.selectReportedEventsAscStmt)
}
var qryRoomNID *types.RoomNID
if roomNID > 0 {
qryRoomNID = &roomNID
}
var qryReportingUser *types.EventStateKeyNID
if reportingUserID > 0 {
qryReportingUser = &reportingUserID
}
rows, err := stmt.QueryContext(ctx,
qryRoomNID,
qryReportingUser,
from,
limit,
)
if err != nil {
return nil, 0, err
}
defer internal.CloseAndLogIfError(ctx, rows, "SelectReportedEvents: failed to close rows")
var result []api.QueryAdminEventReportsResponse
var row api.QueryAdminEventReportsResponse
var count int64
for rows.Next() {
if err = rows.Scan(
&count,
&row.ID,
&row.RoomNID,
&row.EventNID,
&row.ReportingUserNID,
&row.SenderNID,
&row.Reason,
&row.Score,
&row.ReceivedTS,
); err != nil {
return nil, 0, err
}
result = append(result, row)
}
return result, count, rows.Err()
}
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