Files
vuls/reporter/azureblob.go
2021-03-04 07:42:38 +09:00

129 lines
2.8 KiB
Go

package reporter
import (
"bytes"
"encoding/json"
"fmt"
"time"
storage "github.com/Azure/azure-sdk-for-go/storage"
"golang.org/x/xerrors"
c "github.com/future-architect/vuls/config"
"github.com/future-architect/vuls/models"
)
// AzureBlobWriter writes results to AzureBlob
type AzureBlobWriter struct {
FormatJSON bool
FormatFullText bool
FormatOneLineText bool
FormatList bool
Gzip bool
c.AzureConf
}
// Write results to Azure Blob storage
func (w AzureBlobWriter) Write(rs ...models.ScanResult) (err error) {
if len(rs) == 0 {
return nil
}
cli, err := w.getBlobClient()
if err != nil {
return err
}
if w.FormatOneLineText {
timestr := rs[0].ScannedAt.Format(time.RFC3339)
k := fmt.Sprintf(timestr + "/summary.txt")
text := formatOneLineSummary(rs...)
b := []byte(text)
if err := w.createBlockBlob(cli, k, b, w.Gzip); err != nil {
return err
}
}
for _, r := range rs {
key := r.ReportKeyName()
if w.FormatJSON {
k := key + ".json"
var b []byte
if b, err = json.Marshal(r); err != nil {
return xerrors.Errorf("Failed to Marshal to JSON: %w", err)
}
if err := w.createBlockBlob(cli, k, b, w.Gzip); err != nil {
return err
}
}
if w.FormatList {
k := key + "_short.txt"
b := []byte(formatList(r))
if err := w.createBlockBlob(cli, k, b, w.Gzip); err != nil {
return err
}
}
if w.FormatFullText {
k := key + "_full.txt"
b := []byte(formatFullPlainText(r))
if err := w.createBlockBlob(cli, k, b, w.Gzip); err != nil {
return err
}
}
}
return
}
// Validate check the existence of Azure storage container
func (w AzureBlobWriter) Validate() error {
cli, err := w.getBlobClient()
if err != nil {
return err
}
r, err := cli.ListContainers(storage.ListContainersParameters{})
if err != nil {
return err
}
found := false
for _, con := range r.Containers {
if con.Name == w.ContainerName {
found = true
break
}
}
if !found {
return xerrors.Errorf("Container not found. Container: %s", w.ContainerName)
}
return nil
}
func (w AzureBlobWriter) getBlobClient() (storage.BlobStorageClient, error) {
api, err := storage.NewBasicClient(w.AccountName, w.AccountKey)
if err != nil {
return storage.BlobStorageClient{}, err
}
return api.GetBlobService(), nil
}
func (w AzureBlobWriter) createBlockBlob(cli storage.BlobStorageClient, k string, b []byte, gzip bool) error {
var err error
if gzip {
if b, err = gz(b); err != nil {
return err
}
k += ".gz"
}
ref := cli.GetContainerReference(w.ContainerName)
blob := ref.GetBlobReference(k)
if err := blob.CreateBlockBlobFromReader(bytes.NewReader(b), nil); err != nil {
return xerrors.Errorf("Failed to upload data to %s/%s, err: %w",
w.ContainerName, k, err)
}
return nil
}