owpengram-server/internal/store/postgres/ephemeral_report.go
2026-07-24 11:56:59 +08:00

117 lines
4.4 KiB
Go

package postgres
import (
"bytes"
"context"
"encoding/json"
"fmt"
"telesrv/internal/domain"
"telesrv/internal/store"
"telesrv/internal/store/postgres/sqlcgen"
)
// EphemeralReportStore persists the low-volume abuse-review evidence path.
// The hot ephemeral send/edit/delete path remains entirely in Redis.
type EphemeralReportStore struct {
db sqlcgen.DBTX
}
func NewEphemeralReportStore(db sqlcgen.DBTX) *EphemeralReportStore {
return &EphemeralReportStore{db: db}
}
func (s *EphemeralReportStore) CreateEphemeralReport(ctx context.Context, report domain.EphemeralAbuseReport) (bool, error) {
if s == nil || s.db == nil {
return false, fmt.Errorf("ephemeral report store is not configured")
}
if err := report.Validate(); err != nil {
return false, err
}
evidence, err := json.Marshal(report.Evidence)
if err != nil {
return false, fmt.Errorf("marshal ephemeral report evidence: %w", err)
}
tag, err := s.db.Exec(ctx, `
INSERT INTO ephemeral_abuse_reports (
reporter_user_id, channel_id, ephemeral_message_id, sender_user_id,
receiver_user_id, report_option, report_comment, comment_hash,
payload_hash, evidence, created_at
) VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10::jsonb, $11)
ON CONFLICT (
reporter_user_id, channel_id, ephemeral_message_id, report_option, comment_hash
) DO NOTHING
`, report.ReporterUserID, report.Evidence.Peer.ID, report.Evidence.MessageID,
report.Evidence.SenderUserID, report.Evidence.ReceiverUserID,
report.Option, report.Comment, report.CommentHash[:], report.Evidence.PayloadHash[:], evidence, report.CreatedAt)
if err != nil {
return false, fmt.Errorf("insert ephemeral abuse report: %w", err)
}
return tag.RowsAffected() == 1, nil
}
func (s *EphemeralReportStore) ListUnmigratedEphemeralReports(ctx context.Context, limit int) ([]store.LegacyEphemeralReport, error) {
if s == nil || s.db == nil {
return nil, fmt.Errorf("ephemeral report store is not configured")
}
if limit <= 0 || limit > 1000 {
return nil, fmt.Errorf("legacy ephemeral report batch limit out of range")
}
rows, err := s.db.Query(ctx, `
SELECT r.id, r.reporter_user_id, r.channel_id, r.ephemeral_message_id,
r.sender_user_id, r.receiver_user_id, r.report_option,
r.report_comment, r.comment_hash, r.payload_hash, r.evidence,
r.created_at
FROM ephemeral_abuse_reports r
LEFT JOIN moderation_legacy_ephemeral_migrations m
ON m.legacy_report_id = r.id
WHERE m.legacy_report_id IS NULL
ORDER BY r.id
LIMIT $1`, limit)
if err != nil {
return nil, fmt.Errorf("list unmigrated ephemeral reports: %w", err)
}
defer rows.Close()
out := make([]store.LegacyEphemeralReport, 0, limit)
for rows.Next() {
var (
legacy store.LegacyEphemeralReport
channelID, senderUserID, receiverUserID int64
messageID int
commentHash, payloadHash, evidenceRaw []byte
)
if err := rows.Scan(
&legacy.ID, &legacy.Report.ReporterUserID, &channelID,
&messageID, &senderUserID, &receiverUserID,
&legacy.Report.Option, &legacy.Report.Comment, &commentHash,
&payloadHash, &evidenceRaw, &legacy.Report.CreatedAt,
); err != nil {
return nil, fmt.Errorf("scan legacy ephemeral report: %w", err)
}
if legacy.ID <= 0 || len(commentHash) != len(legacy.Report.CommentHash) ||
len(payloadHash) != len(legacy.Report.Evidence.PayloadHash) {
return nil, fmt.Errorf("legacy ephemeral report %d has invalid persisted identity", legacy.ID)
}
copy(legacy.Report.CommentHash[:], commentHash)
if err := json.Unmarshal(evidenceRaw, &legacy.Report.Evidence); err != nil {
return nil, fmt.Errorf("decode legacy ephemeral report %d evidence: %w", legacy.ID, err)
}
if legacy.Report.Evidence.Peer.Type != domain.PeerTypeChannel ||
legacy.Report.Evidence.Peer.ID != channelID ||
legacy.Report.Evidence.MessageID != messageID ||
legacy.Report.Evidence.SenderUserID != senderUserID ||
legacy.Report.Evidence.ReceiverUserID != receiverUserID ||
!bytes.Equal(legacy.Report.Evidence.PayloadHash[:], payloadHash) {
return nil, fmt.Errorf("legacy ephemeral report %d evidence disagrees with indexed columns", legacy.ID)
}
if err := legacy.Report.Validate(); err != nil {
return nil, fmt.Errorf("validate legacy ephemeral report %d: %w", legacy.ID, err)
}
out = append(out, legacy)
}
if err := rows.Err(); err != nil {
return nil, fmt.Errorf("iterate legacy ephemeral reports: %w", err)
}
return out, nil
}