status-go/protocol/peersyncing/sync_message_persistence.go

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package peersyncing
import (
"database/sql"
"encoding/hex"
"fmt"
"strings"
)
type SyncMessagePersistence interface {
Add(SyncMessage) error
All() ([]SyncMessage, error)
Complement([]SyncMessage) ([]SyncMessage, error)
ByGroupID([]byte, int) ([]SyncMessage, error)
ByGroupIDs([][]byte, int) ([]SyncMessage, error)
ByMessageIDs([][]byte) ([]SyncMessage, error)
}
type SyncMessageSQLitePersistence struct {
db *sql.DB
}
func NewSyncMessageSQLitePersistence(db *sql.DB) *SyncMessageSQLitePersistence {
return &SyncMessageSQLitePersistence{db: db}
}
func (p *SyncMessageSQLitePersistence) Add(message SyncMessage) error {
if err := message.Valid(); err != nil {
return err
}
_, err := p.db.Exec(`INSERT INTO peersyncing_messages (id, type, group_id, payload, timestamp) VALUES (?, ?, ?, ?, ?)`, message.ID, message.Type, message.GroupID, message.Payload, message.Timestamp)
return err
}
func (p *SyncMessageSQLitePersistence) All() ([]SyncMessage, error) {
var messages []SyncMessage
rows, err := p.db.Query(`SELECT id, type, group_id, payload, timestamp FROM peersyncing_messages`)
if err != nil {
return nil, err
}
defer rows.Close()
for rows.Next() {
var m SyncMessage
err := rows.Scan(&m.ID, &m.Type, &m.GroupID, &m.Payload, &m.Timestamp)
if err != nil {
return nil, err
}
messages = append(messages, m)
}
return messages, nil
}
func (p *SyncMessageSQLitePersistence) ByGroupID(groupID []byte, limit int) ([]SyncMessage, error) {
var messages []SyncMessage
rows, err := p.db.Query(`SELECT id, type, group_id, payload, timestamp FROM peersyncing_messages WHERE group_id = ? ORDER BY timestamp DESC LIMIT ?`, groupID, limit)
if err != nil {
return nil, err
}
defer rows.Close()
for rows.Next() {
var m SyncMessage
err := rows.Scan(&m.ID, &m.Type, &m.GroupID, &m.Payload, &m.Timestamp)
if err != nil {
return nil, err
}
messages = append(messages, m)
}
return messages, nil
}
func (p *SyncMessageSQLitePersistence) Complement(messages []SyncMessage) ([]SyncMessage, error) {
if len(messages) == 0 {
return nil, nil
}
ids := make([]interface{}, 0, len(messages))
for _, m := range messages {
ids = append(ids, m.ID)
}
inVector := strings.Repeat("?, ", len(ids)-1) + "?"
query := "SELECT id, type, group_id, payload, timestamp FROM peersyncing_messages WHERE id IN (" + inVector + ")" // nolint: gosec
availableMessages := make(map[string]SyncMessage)
rows, err := p.db.Query(query, ids...)
if err != nil {
return nil, err
}
defer rows.Close()
for rows.Next() {
var m SyncMessage
err := rows.Scan(&m.ID, &m.Type, &m.GroupID, &m.Payload, &m.Timestamp)
if err != nil {
return nil, err
}
fmt.Printf("GOT MESSAGE: %x\n", m.ID)
availableMessages[hex.EncodeToString(m.ID)] = m
}
var complement []SyncMessage
for _, m := range messages {
fmt.Printf("CHECKING MESSAGE: %x\n", m.ID)
if _, ok := availableMessages[hex.EncodeToString(m.ID)]; !ok {
complement = append(complement, m)
}
}
return complement, nil
}
func (p *SyncMessageSQLitePersistence) ByGroupIDs(ids [][]byte, limit int) ([]SyncMessage, error) {
if len(ids) == 0 {
return nil, nil
}
queryArgs := make([]interface{}, 0, len(ids))
for _, id := range ids {
queryArgs = append(queryArgs, id)
}
queryArgs = append(queryArgs, limit)
inVector := strings.Repeat("?, ", len(ids)-1) + "?"
query := "SELECT id, type, group_id, payload, timestamp FROM peersyncing_messages WHERE group_id IN (" + inVector + ") ORDER BY timestamp DESC LIMIT ?" // nolint: gosec
var messages []SyncMessage
rows, err := p.db.Query(query, queryArgs...)
if err != nil {
return nil, err
}
defer rows.Close()
for rows.Next() {
var m SyncMessage
err := rows.Scan(&m.ID, &m.Type, &m.GroupID, &m.Payload, &m.Timestamp)
if err != nil {
return nil, err
}
messages = append(messages, m)
}
return messages, nil
}
func (p *SyncMessageSQLitePersistence) ByMessageIDs(ids [][]byte) ([]SyncMessage, error) {
if len(ids) == 0 {
return nil, nil
}
queryArgs := make([]interface{}, 0, len(ids))
for _, id := range ids {
queryArgs = append(queryArgs, id)
}
inVector := strings.Repeat("?, ", len(ids)-1) + "?"
query := "SELECT id, type, group_id, payload, timestamp FROM peersyncing_messages WHERE id IN (" + inVector + ")" // nolint: gosec
var messages []SyncMessage
rows, err := p.db.Query(query, queryArgs...)
if err != nil {
return nil, err
}
defer rows.Close()
for rows.Next() {
var m SyncMessage
err := rows.Scan(&m.ID, &m.Type, &m.GroupID, &m.Payload, &m.Timestamp)
if err != nil {
return nil, err
}
messages = append(messages, m)
}
return messages, nil
}