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scan_repo.go
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scan_repo.go
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package db
import (
"cred-alert/sniff"
"time"
"code.cloudfoundry.org/clock"
"code.cloudfoundry.org/lager"
"github.com/jinzhu/gorm"
)
//go:generate counterfeiter . ScanRepository
type ScanRepository interface {
Start(lager.Logger, string, string, string, string, *Repository) ActiveScan
ScansNotYetRunWithVersion(lager.Logger, int) ([]PriorScan, error)
}
type scanRepository struct {
db *gorm.DB
clock clock.Clock
}
func NewScanRepository(db *gorm.DB, clock clock.Clock) ScanRepository {
return &scanRepository{
db: db,
clock: clock,
}
}
func (repo *scanRepository) Start(
logger lager.Logger,
scanType string,
branch string,
startSHA string,
stopSHA string,
repository *Repository,
) ActiveScan {
logger = logger.Session("start-scan", lager.Data{
"type": scanType,
"rules-version": sniff.RulesVersion,
})
logger.Debug("starting")
return &activeScan{
logger: logger,
clock: repo.clock,
tx: repo.db.Begin(),
repository: repository,
typee: scanType,
startTime: repo.clock.Now(),
branch: branch,
startSHA: startSHA,
stopSHA: stopSHA,
}
}
//go:generate counterfeiter . ActiveScan
type ActiveScan interface {
RecordCredential(Credential)
Finish() error
}
type activeScan struct {
logger lager.Logger
clock clock.Clock
tx *gorm.DB
typee string
startTime time.Time
repository *Repository
branch string
startSHA string
stopSHA string
credentials []Credential
}
func (s *activeScan) RecordCredential(credential Credential) {
s.credentials = append(s.credentials, credential)
}
func (s *activeScan) Finish() error {
scan := Scan{
Type: s.typee,
RulesVersion: sniff.RulesVersion,
ScanStart: s.startTime,
ScanEnd: s.clock.Now(),
Branch: s.branch,
StartSHA: s.startSHA,
StopSHA: s.stopSHA,
Credentials: s.credentials,
}
// don't update the association on save, but actually save it on the scan
if s.repository != nil && s.repository.ID != 0 {
scan.RepositoryID = &s.repository.ID
}
if err := s.tx.Save(&scan).Error; err != nil {
s.tx.Rollback()
return err
}
s.tx.Commit()
return nil
}
type PriorScan struct {
ID int
Branch string
StartSHA string
StopSHA string
Repository string
Owner string
Credentials []Credential
}
func (repo *scanRepository) ScansNotYetRunWithVersion(logger lager.Logger, version int) ([]PriorScan, error) {
logger = logger.Session("prior-scans-for-rules-version", lager.Data{
"version": version,
})
rows, err := repo.db.DB().Query(`
SELECT s.id,
s.branch,
s.start_sha,
s.stop_sha,
r.owner,
r.name
FROM scans s
JOIN repositories r
ON s.repository_id = r.id
JOIN (SELECT repository_id,
start_sha,
stop_sha,
MAX(rules_version) AS max_version
FROM scans
WHERE start_sha <> ''
GROUP BY 1, 2, 3
HAVING max_version = ? - 1) ood_scans
ON s.repository_id = ood_scans.repository_id
AND s.start_sha = ood_scans.start_sha
AND s.stop_sha = ood_scans.stop_sha
AND s.rules_version = ood_scans.max_version
`, version)
if err != nil {
logger.Error("failed-to-execute-query", err)
return nil, err
}
defer rows.Close()
var (
previousScans []PriorScan
id int
branch string
startSHA string
stopSHA string
owner string
repositoryName string
)
for rows.Next() {
scanErr := rows.Scan(&id, &branch, &startSHA, &stopSHA, &owner, &repositoryName)
if scanErr != nil {
logger.Error("failed-to-scan-row", err)
return nil, scanErr
}
previousScans = append(previousScans, PriorScan{
ID: id,
Branch: branch,
StartSHA: startSHA,
StopSHA: stopSHA,
Owner: owner,
Repository: repositoryName,
})
}
return previousScans, nil
}