/
redis.go
193 lines (170 loc) · 6.31 KB
/
redis.go
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package db
import (
"context"
"encoding/json"
"fmt"
"github.com/cheggaaa/pb/v3"
"github.com/go-redis/redis/v8"
"github.com/inconshreveable/log15"
"github.com/mozqnet/go-exploitdb/models"
)
/**
# Redis Data Structure
- HASH
┌───┬───────────────────────┬────────────┬────────────────┬────────────────────────────────┐
│NO │ HASH │ FIELD │ VALUE │ PURPOSE │
└───┴───────────────────────┴────────────┴────────────────┴────────────────────────────────┘
┌───┬───────────────────────┬────────────┬────────────────┬────────────────────────────────┐
│ 1 │EXPLOIT#E#$EXPLOITDBID │ $CVEID │ $EXPLOIT JSON │ TO GET EXPLOIT FROM EXPLOITDBID│
├───┼───────────────────────┼────────────┼────────────────┼────────────────────────────────┤
│ 2 │EXPLOIT#C#$CVEID │$EXPLOITDBID│ $EXPLOIT JSON │ TO GET EXPLOIT FROM CVEID │
└───┴───────────────────────┴────── ────┴────────────────┴────────────────────────────────┘
**/
const (
dialectRedis = "redis"
exploitDBIDPrefix = "EXPLOIT#E#"
cveIDPrefix = "EXPLOIT#C#"
)
// RedisDriver is Driver for Redis
type RedisDriver struct {
name string
conn *redis.Client
}
// Name return db name
func (r *RedisDriver) Name() string {
return r.name
}
// OpenDB opens Database
func (r *RedisDriver) OpenDB(dbType, dbPath string, debugSQL bool) (locked bool, err error) {
if err = r.connectRedis(dbPath); err != nil {
err = fmt.Errorf("Failed to open DB. dbtype: %s, dbpath: %s, err: %s", dbType, dbPath, err)
}
return
}
func (r *RedisDriver) connectRedis(dbPath string) error {
var err error
var option *redis.Options
if option, err = redis.ParseURL(dbPath); err != nil {
log15.Error("Failed to parse url.", "err", err)
return err
}
ctx := context.Background()
r.conn = redis.NewClient(option)
err = r.conn.Ping(ctx).Err()
return err
}
// MigrateDB migrates Database
func (r *RedisDriver) MigrateDB() error {
return nil
}
// GetExploitByCveID :
func (r *RedisDriver) GetExploitByCveID(cveID string) (exploits []*models.Exploit) {
ctx := context.Background()
result := r.conn.HGetAll(ctx, cveIDPrefix+cveID)
if result.Err() != nil {
log15.Error("Failed to get cve.", "err", result.Err())
return nil
}
for _, j := range result.Val() {
var exploit models.Exploit
if err := json.Unmarshal([]byte(j), &exploit); err != nil {
log15.Error("Failed to Unmarshal json.", "err", err)
return nil
}
exploits = append(exploits, &exploit)
}
return exploits
}
// GetExploitByID :
func (r *RedisDriver) GetExploitByID(exploitDBID string) (exploits []*models.Exploit) {
ctx := context.Background()
results := r.conn.HGetAll(ctx, exploitDBIDPrefix+exploitDBID)
if results.Err() != nil {
log15.Error("Failed to get cve.", "err", results.Err())
return nil
}
for _, j := range results.Val() {
var exploit models.Exploit
if err := json.Unmarshal([]byte(j), &exploit); err != nil {
log15.Error("Failed to Unmarshal json.", "err", err)
return nil
}
exploits = append(exploits, &exploit)
}
return exploits
}
// GetExploitAll :
func (r *RedisDriver) GetExploitAll() (exploits []*models.Exploit) {
log15.Error("redis does not correspond to all")
return
}
// GetExploitMultiByCveID :
func (r *RedisDriver) GetExploitMultiByCveID(cveIDs []string) (exploitsMap map[string][]*models.Exploit) {
ctx := context.Background()
exploitsMap = map[string][]*models.Exploit{}
rs := map[string]*redis.StringStringMapCmd{}
pipe := r.conn.Pipeline()
for _, cveID := range cveIDs {
rs[cveID] = pipe.HGetAll(ctx, cveIDPrefix+cveID)
}
if _, err := pipe.Exec(ctx); err != nil {
if err != redis.Nil {
log15.Error("Failed to get multi cve json.", "err", err)
return nil
}
}
for cveID, results := range rs {
var exploits []*models.Exploit
for _, j := range results.Val() {
var exploit models.Exploit
if results.Err() != nil {
log15.Error("Failed to Get Explit", "err", results.Err())
continue
}
if err := json.Unmarshal([]byte(j), &exploit); err != nil {
log15.Error("Failed to Unmarshal json.", "err", err)
return nil
}
exploits = append(exploits, &exploit)
}
exploitsMap[cveID] = exploits
}
return exploitsMap
}
//InsertExploit :
func (r *RedisDriver) InsertExploit(exploits []*models.Exploit) (err error) {
ctx := context.Background()
bar := pb.StartNew(len(exploits))
var noCveIDExploitCount, cveIDExploitCount int
for _, exploit := range exploits {
var pipe redis.Pipeliner
pipe = r.conn.Pipeline()
bar.Increment()
j, err := json.Marshal(exploit)
if err != nil {
return fmt.Errorf("Failed to marshal json. err: %s", err)
}
if 0 < len(exploit.CveID) {
if result := pipe.HSet(ctx, cveIDPrefix+exploit.CveID, exploit.ExploitUniqueID, string(j)); result.Err() != nil {
return fmt.Errorf("Failed to HSet CVE. err: %s", result.Err())
}
cveIDExploitCount++
} else {
noCveIDExploitCount++
}
// NoCveID -> NONE
if len(exploit.CveID) == 0 {
exploit.CveID = "NONE"
}
if result := pipe.HSet(ctx, exploitDBIDPrefix+exploit.ExploitUniqueID, exploit.CveID, string(j)); result.Err() != nil {
return fmt.Errorf("Failed to HSet Exploit. err: %s", result.Err())
}
if _, err = pipe.Exec(ctx); err != nil {
return fmt.Errorf("Failed to exec pipeline. err: %s", err)
}
}
bar.Finish()
log15.Info("No CveID Exploit Count", "count", noCveIDExploitCount)
log15.Info("CveID Exploit Count", "count", cveIDExploitCount)
return nil
}