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delete.go
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delete.go
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// Copyright 2018 Saferwall. All rights reserved.
// Use of this source code is governed by Apache v2 license
// license that can be found in the LICENSE file.
package cmd
import (
"context"
"log"
"strings"
s "github.com/saferwall/saferwall-cli/internal/storage"
"github.com/saferwall/saferwall-cli/internal/util"
"github.com/saferwall/saferwall-cli/internal/webapi"
"github.com/spf13/cobra"
)
var delFromDB bool
var delFromObjSto bool
func init() {
deleteCmd.Flags().
StringVarP(&sha256Flag, "sha256", "s", "",
"SHA256 hash to delete")
deleteCmd.Flags().StringVarP(&txtFlag, "txt", "t", "",
"Delete all hashes in a text file, separate by a line break")
deleteCmd.Flags().BoolVarP(&delFromDB, "deleteFromDB", "d", false,
"Delete the sample from the DB")
deleteCmd.Flags().BoolVarP(&delFromObjSto, "deleteFromStore", "r", false,
"Delete the sample from the object storage")
}
var deleteCmd = &cobra.Command{
Use: "delete",
Short: "Delete a sample(s) given its SHA256 hash.",
Long: `Delete a binary sample given a sha256.`,
Run: func(cmd *cobra.Command, args []string) {
var token string
var sto s.Storage
var err error
if delFromDB {
// Authenticate to Saferwall web service.
token, err = webapi.Login(cfg.Credentials.Username, cfg.Credentials.Password)
if err != nil {
log.Fatalf("failed to login to saferwall web service")
}
}
if delFromObjSto {
// Authenticate to object storage service.
opts := s.Options{}
switch cfg.Storage.DeploymentKind {
case "aws":
opts.Region = cfg.Storage.S3.Region
opts.AccessKey = cfg.Storage.S3.AccessKey
opts.SecretKey = cfg.Storage.S3.SecretKey
case "minio":
opts.Region = cfg.Storage.MinIO.Region
opts.AccessKey = cfg.Storage.MinIO.AccessKey
opts.SecretKey = cfg.Storage.MinIO.SecretKey
opts.MinIOEndpoint = cfg.Storage.MinIO.Endpoint
case "local":
opts.LocalRootDir = cfg.Storage.Local.RootDir
}
opts.Bucket = cfg.Storage.SamplesBucket
sto, err = s.New(cfg.Storage.DeploymentKind, opts)
if err != nil {
log.Fatalf("failed to create a storage client: %v", err)
return
}
}
// Delete a single binary.
if sha256Flag != "" {
delete(sha256Flag, token, sto)
} else if txtFlag != "" {
// Delete a list of sha256 hashes.
data, err := util.ReadAll(txtFlag)
if err != nil {
log.Fatalf("failed to read to SHA256 hashes from txt file: %v", txtFlag)
}
sha256list := strings.Split(string(data), "\n")
for _, sha256 := range sha256list {
if len(sha256) >= 64 {
delete(sha256, token, sto)
}
}
}
},
}
func delete(sha256, token string, sto s.Storage) error {
log.Printf("deleting %s", sha256)
if token != "" {
err := webapi.Delete(sha256, token)
if err != nil {
log.Fatalf("failed to delete %s, err: %v", sha256, err)
return err
}
}
if sto != nil {
err := sto.Delete(context.TODO(), cfg.Storage.SamplesBucket, sha256)
if err != nil {
log.Fatalf("failed to delete %s, err: %v", sha256, err)
return err
}
}
return nil
}