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package main
// ------------------------------------------------------------------------------
// MIT License
// Copyright (c) 2020 deepfence
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
// ------------------------------------------------------------------------------
import (
"fmt"
"github.com/deepfence/SecretScanner/core"
"github.com/deepfence/SecretScanner/output"
"github.com/deepfence/SecretScanner/signature"
"github.com/fatih/color"
)
// Read the regex signatures from config file, options etc.
// and setup the session to start scanning for secrets
var session = core.GetSession()
// Scan a container image for secrets layer by layer
// @parameters
// image - Name of the container image to scan (e.g. "alpine:3.5")
// @returns
// Error, if any. Otherwise, returns nil
func findSecretsInImage(image string) error {
var tempSecretsFound []output.SecretFound
tempDir, err := core.GetTmpDir(image) // ("Deepfence/SecretScanning/" + scanId)
if err != nil {
core.GetSession().Log.Error("findSecretsInImage: Could not create temp dir: %s", err)
return err
}
defer core.DeleteTmpDir(tempDir)
imageScan := ImageScan{imageName: image, imageId: "", tempDir: tempDir}
err = imageScan.extractImage()
if err != nil {
core.GetSession().Log.Error("findSecretsInImage: %s", err)
return err
}
jsonImageSecretsOutput := output.JsonImageSecretsOutput{ImageName: image}
jsonImageSecretsOutput.SetTime()
jsonImageSecretsOutput.SetImageId(imageScan.imageId)
jsonImageSecretsOutput.PrintJsonHeader()
tempSecretsFound, err = imageScan.scan()
if err != nil {
core.GetSession().Log.Error("findSecretsInImage: %s", err)
return err
}
jsonImageSecretsOutput.PrintJsonFooter()
jsonImageSecretsOutput.SetSecrets(tempSecretsFound)
jsonFilename, err := core.GetJsonFilepath(image)
if err != nil {
core.GetSession().Log.Error("findSecretsInImage: %s", err)
return err
}
err = jsonImageSecretsOutput.WriteSecrets(jsonFilename)
if err != nil {
core.GetSession().Log.Error("findSecretsInImage: %s", err)
return err
}
return nil
}
// Scan a container image for secrets layer by layer
// @parameters
// dir - Complete path of the directory to be scanned
// @returns
// Error, if any. Otherwise, returns nil
func findSecretsInDir(dir string) error {
var isFirstSecret bool = true
var numSecrets uint = 0
jsonDirSecretsOutput := output.JsonDirSecretsOutput{DirName: *session.Options.Local}
jsonDirSecretsOutput.SetTime()
jsonDirSecretsOutput.PrintJsonHeader()
secrets, err := scanSecretsInDir("", "", dir, &isFirstSecret, &numSecrets)
if err != nil {
core.GetSession().Log.Error("findSecretsInDir: %s", err)
return err
}
jsonDirSecretsOutput.PrintJsonFooter()
jsonDirSecretsOutput.SetSecrets(secrets)
jsonFilename, err := core.GetJsonFilepath(dir)
if err != nil {
core.GetSession().Log.Error("findSecretsInDir: %s", err)
return err
}
err = jsonDirSecretsOutput.WriteSecrets(jsonFilename)
if err != nil {
core.GetSession().Log.Error("findSecretsInDir: %s", err)
return err
}
return nil
}
func main() {
// Process and store the read signatures
signature.ProcessSignatures(session.Config.Signatures)
// Build Hyperscan database for fast scanning
signature.BuildHsDb()
// Scan container image for secrets
if len(*session.Options.ImageName) > 0 {
fmt.Printf("Scanning image %s for secrets...\n", *session.Options.ImageName)
err := findSecretsInImage(*session.Options.ImageName)
if err != nil {
core.GetSession().Log.Fatal("main: error while scanning image: %s", err)
}
}
// Scan local directory for secrets
if len(*session.Options.Local) > 0 {
fmt.Printf("[*] Scanning local directory: %s\n", color.BlueString(*session.Options.Local))
err := findSecretsInDir(*session.Options.Local)
if err != nil {
core.GetSession().Log.Fatal("main: error while scanning dir: %s", err)
}
}
}