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redis.go
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redis.go
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package db
import (
"encoding/json"
"fmt"
"io/ioutil"
"os"
"github.com/cheggaaa/pb"
"github.com/go-redis/redis"
"github.com/knqyf263/go-cpe/common"
"github.com/knqyf263/go-cpe/naming"
c "github.com/kotakanbe/go-cve-dictionary/config"
log "github.com/kotakanbe/go-cve-dictionary/log"
"github.com/kotakanbe/go-cve-dictionary/models"
)
/**
# Redis Data Structure
- HASH
┌──────────────┬──────────┬──────────┬──────────────────────────────────┐
│ HASH │ FIELD │ VALUE │ PURPOSE │
└──────────────┴──────────┴──────────┴──────────────────────────────────┘
┌──────────────┬──────────┬───────────┬─────────────────────────────────┐
│CVE#${CVEID} │NVD or JVN│${CVEJSON} │Get CVEJSON by CVEID │
├──────────────┼──────────┼───────────┼─────────────────────────────────┤
│CVE#C#${CVEID}│NVD or JVN│${CPEJSON} │Get CPEJSON BY CVEID │
├──────────────┼──────────┼───────────┼─────────────────────────────────┤
│ CVE#Meta │${URL} │${METAJSON}│Get FeedMeta BY URL │
└──────────────┴──────────┴───────────┴─────────────────────────────────┘
- ZINDE X
┌─────────────────────────┬──────────┬─────────────┬─────────────────────────────────────┐
│ KEY │ SCORE │ MEMBER │ PURPOSE │
└─────────────────────────┴──────────┴─────────────┴─────────────────────────────────────┘
┌─────────────────────────┬──────────┬─────────────┬─────────────────────────────────────┐
│CVE#${Vendor}::${Product}│ 0 │[]${CVEID} │Get related []CVEID by Vendor,Product│
└─────────────────────────┴──────────┴─────────────┴─────────────────────────────────────┘
**/
const (
dialectRedis = "redis"
hashKeyPrefix = "CVE#"
cpeHashKeyPrefix = "CVE#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
}
// NewRedis return Redis driver
func NewRedis(dbType, dbpath string, debugSQL bool) (driver *RedisDriver, locked bool, err error) {
driver = &RedisDriver{
name: dbType,
}
log.Debugf("Opening DB (%s).", driver.Name())
if err = driver.OpenDB(dbType, dbpath, debugSQL); err != nil {
return
}
return
}
// OpenDB opens Database
func (r *RedisDriver) OpenDB(dbType, dbPath string, debugSQL bool) (err error) {
var option *redis.Options
if option, err = redis.ParseURL(dbPath); err != nil {
log.Errorf("%s", err)
return fmt.Errorf("Failed to Parse Redis URL. dbpath: %s, err: %s", dbPath, err)
}
r.conn = redis.NewClient(option)
if err = r.conn.Ping().Err(); err != nil {
return fmt.Errorf("Failed to open DB. dbtype: %s, dbpath: %s, err: %s", dbType, dbPath, err)
}
return nil
}
// CloseDB close Database
func (r *RedisDriver) CloseDB() (err error) {
if err = r.conn.Close(); err != nil {
log.Errorf("Failed to close DB. Type: %s. err: %s", r.name, err)
return
}
return
}
// Get Select Cve information from DB.
func (r *RedisDriver) Get(cveID string) (*models.CveDetail, error) {
var cveResult, cpeResult *redis.StringStringMapCmd
if cveResult = r.conn.HGetAll(hashKeyPrefix + cveID); cveResult.Err() != nil {
return nil, cveResult.Err()
}
if cpeResult = r.conn.HGetAll(cpeHashKeyPrefix + cveID); cpeResult.Err() != nil {
return nil, cpeResult.Err()
}
return r.unmarshal(cveID, cveResult, cpeResult)
}
// GetMulti Select Cves information from DB.
func (r *RedisDriver) GetMulti(cveIDs []string) (map[string]models.CveDetail, error) {
cveDetails := map[string]models.CveDetail{}
pipe := r.conn.Pipeline()
cveRs, cpeRs := map[string]*redis.StringStringMapCmd{}, map[string]*redis.StringStringMapCmd{}
for _, cveID := range cveIDs {
cveRs[cveID] = pipe.HGetAll(hashKeyPrefix + cveID)
cpeRs[cveID] = pipe.HGetAll(cpeHashKeyPrefix + cveID)
}
if _, err := pipe.Exec(); err != nil {
if err != redis.Nil {
return nil, fmt.Errorf("Failed to get multi cve json. err : %s", err)
}
}
for cveID, cveResult := range cveRs {
cpeResult := cpeRs[cveID]
cveDetail, err := r.unmarshal(cveID, cveResult, cpeResult)
if err != nil {
return nil, err
}
cveDetails[cveID] = *cveDetail
}
return cveDetails, nil
}
func (r *RedisDriver) unmarshal(cveID string, cveResult, cpeResult *redis.StringStringMapCmd) (*models.CveDetail, error) {
var err error
jvn := &models.Jvn{}
if j, ok := cveResult.Val()["Jvn"]; ok {
if err = json.Unmarshal([]byte(j), jvn); err != nil {
return nil, err
}
}
if jc, ok := cpeResult.Val()["Jvn"]; ok {
if err = json.Unmarshal([]byte(jc), &jvn.Cpes); err != nil {
return nil, err
}
}
if jvn.CveID == "" {
jvn = nil
}
nvdjson := &models.NvdJSON{}
if j, ok := cveResult.Val()["NvdJSON"]; ok {
if err = json.Unmarshal([]byte(j), nvdjson); err != nil {
return nil, err
}
}
if jc, ok := cpeResult.Val()["NvdJSON"]; ok {
if err = json.Unmarshal([]byte(jc), &nvdjson.Cpes); err != nil {
return nil, err
}
}
if nvdjson.CveID == "" {
nvdjson = nil
}
nvdxml := &models.NvdXML{}
if nvdjson == nil {
if j, ok := cveResult.Val()["Nvd"]; ok {
if err = json.Unmarshal([]byte(j), nvdxml); err != nil {
return nil, err
}
}
if jc, ok := cpeResult.Val()["Nvd"]; ok {
if err = json.Unmarshal([]byte(jc), &nvdxml.Cpes); err != nil {
return nil, err
}
}
if nvdxml.CveID == "" {
nvdxml = nil
}
} else {
nvdxml = nil
}
return &models.CveDetail{
CveID: cveID,
NvdXML: nvdxml,
NvdJSON: nvdjson,
Jvn: jvn,
}, nil
}
// GetByCpeURI Select Cve information from DB.
func (r *RedisDriver) GetByCpeURI(uri string) ([]models.CveDetail, error) {
specified, err := naming.UnbindURI(uri)
if err != nil {
return nil, err
}
vendor := fmt.Sprintf("%s", specified.Get(common.AttributeVendor))
product := fmt.Sprintf("%s", specified.Get(common.AttributeProduct))
key := fmt.Sprintf("%s%s::%s", hashKeyPrefix, vendor, product)
var result *redis.StringSliceCmd
if result = r.conn.ZRange(key, 0, -1); result.Err() != nil {
return nil, result.Err()
}
uniqCveIDs := map[string]bool{}
for _, v := range result.Val() {
uniqCveIDs[v] = true
}
details := []models.CveDetail{}
for cveID := range uniqCveIDs {
d, err := r.Get(cveID)
if err != nil {
return nil, err
}
match, err := matchCpe(specified, d)
if err != nil {
log.Warnf("Failed to compare the version:%s %s %#v",
err, uri, d)
// continue matching
continue
}
if match {
details = append(details, *d)
}
}
return details, nil
}
// InsertJvn insert items fetched from JVN.
func (r *RedisDriver) InsertJvn(cves []models.CveDetail) error {
log.Infof("Inserting fetched CVEs...")
var err error
var refreshedJvns []string
bar := pb.New(len(cves))
if c.Conf.Quiet {
bar.SetWriter(ioutil.Discard)
} else {
bar.SetWriter(os.Stderr)
}
bar.Start()
for chunked := range chunkSlice(cves, 10) {
var pipe redis.Pipeliner
pipe = r.conn.Pipeline()
for _, c := range chunked {
bar.Increment()
cpes := make([]models.Cpe, len(c.Jvn.Cpes))
copy(cpes, c.Jvn.Cpes)
c.Jvn.Cpes = nil
var jj []byte
if jj, err = json.Marshal(c.Jvn); err != nil {
return fmt.Errorf("Failed to marshal json. err: %s", err)
}
refreshedJvns = append(refreshedJvns, c.CveID)
if result := pipe.HSet(hashKeyPrefix+c.CveID, "Jvn", string(jj)); result.Err() != nil {
return fmt.Errorf("Failed to HSet CVE. err: %s", result.Err())
}
for _, cpe := range cpes {
if result := pipe.ZAdd(
fmt.Sprintf("%s%s::%s", hashKeyPrefix, cpe.Vendor, cpe.Product),
redis.Z{Score: 0, Member: c.CveID},
); result.Err() != nil {
return fmt.Errorf("Failed to ZAdd cpe. err: %s", result.Err())
}
}
var jc []byte
if jc, err = json.Marshal(cpes); err != nil {
return fmt.Errorf("Failed to marshal json. err: %s", err)
}
if result := pipe.HSet(cpeHashKeyPrefix+c.CveID, "Jvn", string(jc)); result.Err() != nil {
return fmt.Errorf("Failed to HSet CPE. err: %s", result.Err())
}
}
if _, err = pipe.Exec(); err != nil {
return fmt.Errorf("Failed to exec pipeline. err: %s", err)
}
}
bar.Finish()
log.Infof("Refreshed %d Jvns.", len(refreshedJvns))
// log.Debugf("%v", refreshedJvns)
return nil
}
// CountNvd count nvd table
func (r *RedisDriver) CountNvd() (int, error) {
var result *redis.StringSliceCmd
if result = r.conn.Keys(hashKeyPrefix + "CVE*"); result.Err() != nil {
return 0, result.Err()
}
return len(result.Val()), nil
}
// InsertNvdXML inserts CveInformation into DB
func (r *RedisDriver) InsertNvdXML(cves []models.CveDetail) error {
log.Infof("Inserting CVEs...")
var err error
var refreshedNvds []string
bar := pb.New(len(cves))
if c.Conf.Quiet {
bar.SetWriter(ioutil.Discard)
} else {
bar.SetWriter(os.Stderr)
}
bar.Start()
for chunked := range chunkSlice(cves, 10) {
var pipe redis.Pipeliner
pipe = r.conn.Pipeline()
for _, c := range chunked {
bar.Increment()
cpes := make([]models.Cpe, len(c.NvdXML.Cpes))
copy(cpes, c.NvdXML.Cpes)
c.NvdXML.Cpes = nil
var jn []byte
if jn, err = json.Marshal(c.NvdXML); err != nil {
return fmt.Errorf("Failed to marshal json. err: %s", err)
}
refreshedNvds = append(refreshedNvds, c.CveID)
if result := pipe.HSet(hashKeyPrefix+c.CveID, "Nvd", string(jn)); result.Err() != nil {
return fmt.Errorf("Failed to HSet JVN CVE. err: %s", result.Err())
}
for _, cpe := range cpes {
if result := pipe.ZAdd(
fmt.Sprintf("%s%s::%s", hashKeyPrefix, cpe.Vendor, cpe.Product),
redis.Z{Score: 0, Member: c.CveID},
); result.Err() != nil {
return fmt.Errorf("Failed to ZAdd cpe. err: %s", result.Err())
}
}
var jc []byte
if jc, err = json.Marshal(cpes); err != nil {
return fmt.Errorf("Failed to marshal json. err: %s", err)
}
if result := pipe.HSet(cpeHashKeyPrefix+c.CveID, "Nvd", string(jc)); result.Err() != nil {
return fmt.Errorf("Failed to HSet NVD CPE. err: %s", result.Err())
}
}
if _, err = pipe.Exec(); err != nil {
return fmt.Errorf("Failed to exec pipeline. err: %s", err)
}
}
bar.Finish()
log.Infof("Refreshed %d Nvds.", len(refreshedNvds))
// log.Debugf("%v", refreshedNvds)
return nil
}
// InsertNvdJSON Cve information from DB.
func (r *RedisDriver) InsertNvdJSON(cves []models.CveDetail) error {
log.Infof("Inserting CVEs...")
var err error
var refreshedNvds []string
bar := pb.New(len(cves))
if c.Conf.Quiet {
bar.SetWriter(ioutil.Discard)
} else {
bar.SetWriter(os.Stderr)
}
bar.Start()
for chunked := range chunkSlice(cves, 10) {
var pipe redis.Pipeliner
pipe = r.conn.Pipeline()
for _, c := range chunked {
bar.Increment()
cpes := make([]models.Cpe, len(c.NvdJSON.Cpes))
copy(cpes, c.NvdJSON.Cpes)
c.NvdJSON.Cpes = nil
var jn []byte
if jn, err = json.Marshal(c.NvdJSON); err != nil {
return fmt.Errorf("Failed to marshal json. err: %s", err)
}
refreshedNvds = append(refreshedNvds, c.CveID)
if result := pipe.HSet(hashKeyPrefix+c.CveID, "NvdJSON", string(jn)); result.Err() != nil {
return fmt.Errorf("Failed to HSet CVE. err: %s", result.Err())
}
for _, cpe := range cpes {
if result := pipe.ZAdd(
fmt.Sprintf("%s%s::%s", hashKeyPrefix, cpe.Vendor, cpe.Product),
redis.Z{Score: 0, Member: c.CveID},
); result.Err() != nil {
return fmt.Errorf("Failed to ZAdd cpe. err: %s", result.Err())
}
}
var jc []byte
if jc, err = json.Marshal(cpes); err != nil {
return fmt.Errorf("Failed to marshal json. err: %s", err)
}
if result := pipe.HSet(cpeHashKeyPrefix+c.CveID, "NvdJSON", string(jc)); result.Err() != nil {
return fmt.Errorf("Failed to HSet NVD CPE. err: %s", result.Err())
}
}
if _, err = pipe.Exec(); err != nil {
return fmt.Errorf("Failed to exec pipeline. err: %s", err)
}
}
bar.Finish()
log.Infof("Refreshed %d Nvds.", len(refreshedNvds))
// log.Debugf("%v", refreshedNvds)
return nil
}
// GetFetchedFeedMeta selects hash in metafile of the year
func (r *RedisDriver) GetFetchedFeedMeta(url string) (*models.FeedMeta, error) {
var result *redis.StringStringMapCmd
if result = r.conn.HGetAll(hashKeyPrefix + "Meta"); result.Err() != nil {
return nil, result.Err()
}
meta := &models.FeedMeta{}
if s, ok := result.Val()[url]; ok {
if err := json.Unmarshal([]byte(s), meta); err != nil {
return nil, err
}
return meta, nil
}
return meta, nil
}
// UpsertFeedHash selects hash in metafile of the year
func (r *RedisDriver) UpsertFeedHash(m models.FeedMeta) error {
jn, err := json.Marshal(m)
if err != nil {
return fmt.Errorf("Failed to marshal json. err: %s", err)
}
var pipe redis.Pipeliner
pipe = r.conn.Pipeline()
if result := pipe.HSet(hashKeyPrefix+"Meta", m.URL, jn); result.Err() != nil {
return fmt.Errorf("Failed to HSet META. err: %s", result.Err())
}
if _, err := pipe.Exec(); err != nil {
return fmt.Errorf("Failed to exec pipeline. err: %s", err)
}
return nil
}
// GetFetchedFeedMetas selects a list of FeedMeta
func (r *RedisDriver) GetFetchedFeedMetas() (metas []models.FeedMeta, err error) {
var result *redis.StringStringMapCmd
if result = r.conn.HGetAll(hashKeyPrefix + "Meta"); result.Err() != nil {
return nil, result.Err()
}
for _, s := range result.Val() {
m := models.FeedMeta{}
if err := json.Unmarshal([]byte(s), &m); err != nil {
return nil, err
}
metas = append(metas, m)
}
return
}