forked from future-architect/vuls
/
s3.go
165 lines (143 loc) · 4.24 KB
/
s3.go
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/* Vuls - Vulnerability Scanner
Copyright (C) 2016 Future Corporation , Japan.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package report
import (
"bytes"
"encoding/json"
"encoding/xml"
"fmt"
"path"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/credentials"
"github.com/aws/aws-sdk-go/aws/credentials/ec2rolecreds"
"github.com/aws/aws-sdk-go/aws/ec2metadata"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/s3"
c "github.com/future-architect/vuls/config"
"github.com/future-architect/vuls/models"
)
// S3Writer writes results to S3
type S3Writer struct{}
func getS3() *s3.S3 {
Config := &aws.Config{
Region: aws.String(c.Conf.AWS.Region),
Credentials: credentials.NewChainCredentials([]credentials.Provider{
&credentials.EnvProvider{},
&credentials.SharedCredentialsProvider{Filename: "", Profile: c.Conf.AWS.Profile},
&ec2rolecreds.EC2RoleProvider{Client: ec2metadata.New(session.New())},
}),
}
return s3.New(session.New(Config))
}
// Write results to S3
// http://docs.aws.amazon.com/sdk-for-go/latest/v1/developerguide/common-examples.title.html
func (w S3Writer) Write(rs ...models.ScanResult) (err error) {
if len(rs) == 0 {
return nil
}
svc := getS3()
if c.Conf.FormatOneLineText {
timestr := rs[0].ScannedAt.Format(time.RFC3339)
k := fmt.Sprintf(timestr + "/summary.txt")
text := formatOneLineSummary(rs...)
if err := putObject(svc, k, []byte(text)); err != nil {
return err
}
}
for _, r := range rs {
key := r.ReportKeyName()
if c.Conf.FormatJSON {
k := key + ".json"
var b []byte
if b, err = json.Marshal(r); err != nil {
return fmt.Errorf("Failed to Marshal to JSON: %s", err)
}
if err := putObject(svc, k, b); err != nil {
return err
}
}
if c.Conf.FormatList {
k := key + "_short.txt"
text := formatList(r)
if err := putObject(svc, k, []byte(text)); err != nil {
return err
}
}
if c.Conf.FormatFullText {
k := key + "_full.txt"
text := formatFullPlainText(r)
if err := putObject(svc, k, []byte(text)); err != nil {
return err
}
}
if c.Conf.FormatXML {
k := key + ".xml"
var b []byte
if b, err = xml.Marshal(r); err != nil {
return fmt.Errorf("Failed to Marshal to XML: %s", err)
}
allBytes := bytes.Join([][]byte{[]byte(xml.Header + vulsOpenTag), b, []byte(vulsCloseTag)}, []byte{})
if err := putObject(svc, k, allBytes); err != nil {
return err
}
}
}
return nil
}
// CheckIfBucketExists check the existence of S3 bucket
func CheckIfBucketExists() error {
svc := getS3()
result, err := svc.ListBuckets(&s3.ListBucketsInput{})
if err != nil {
return fmt.Errorf(
"Failed to list buckets. err: %s, profile: %s, region: %s",
err, c.Conf.AWS.Profile, c.Conf.AWS.Region)
}
found := false
for _, bucket := range result.Buckets {
if *bucket.Name == c.Conf.AWS.S3Bucket {
found = true
break
}
}
if !found {
return fmt.Errorf(
"Failed to find the buckets. profile: %s, region: %s, bucket: %s",
c.Conf.AWS.Profile, c.Conf.AWS.Region, c.Conf.AWS.S3Bucket)
}
return nil
}
func putObject(svc *s3.S3, k string, b []byte) error {
var err error
if c.Conf.GZIP {
if b, err = gz(b); err != nil {
return err
}
k = k + ".gz"
}
putObjectInput := &s3.PutObjectInput{
Bucket: aws.String(c.Conf.AWS.S3Bucket),
Key: aws.String(path.Join(c.Conf.AWS.S3ResultsDir, k)),
Body: bytes.NewReader(b),
}
if c.Conf.AWS.S3ServerSideEncryption != "" {
putObjectInput.ServerSideEncryption = aws.String(c.Conf.AWS.S3ServerSideEncryption)
}
if _, err := svc.PutObject(putObjectInput); err != nil {
return fmt.Errorf("Failed to upload data to %s/%s, %s",
c.Conf.AWS.S3Bucket, k, err)
}
return nil
}