Files
ahrav c617bd7a4e Add resuming capability to GCS source (#1161)
* Add resuming capability to GCS source.

* Handle no auth scans.

* complete resume logic

* Use custom function type.

* remove functions.

* linter.

* fix test.

* fix test.

* Handle concurrent map writes.

* use string as CLI flag for include/exclude.

* handle emtpy buckets.

* Handle enumeration on initial job run.

* Rename stats to attributes.

* remove redundant return.

* If test fails due to 400, that is fine, it's expected.

* Add unauth GCS source type.

* comments.

* update proto.

* Use short flag.

* address comments.
2023-03-16 17:53:42 -07:00

107 lines
2.8 KiB
Go

package engine
import (
"fmt"
"google.golang.org/protobuf/proto"
"google.golang.org/protobuf/types/known/anypb"
"github.com/trufflesecurity/trufflehog/v3/pkg/common"
"github.com/trufflesecurity/trufflehog/v3/pkg/context"
"github.com/trufflesecurity/trufflehog/v3/pkg/pb/sourcespb"
"github.com/trufflesecurity/trufflehog/v3/pkg/sources"
"github.com/trufflesecurity/trufflehog/v3/pkg/sources/gcs"
)
// ScanGCS with the provided options.
func (e *Engine) ScanGCS(ctx context.Context, c sources.GCSConfig) error {
// Project ID is required if using any authenticated access.
if c.ProjectID == "" && !c.WithoutAuth {
return fmt.Errorf("project ID is required")
}
// If using unauthenticated access, the project ID is not used.
if c.ProjectID != "" && c.WithoutAuth {
c.ProjectID = ""
ctx.Logger().Info("project ID is not used when using unauthenticated access, ignoring provided project ID")
}
connection := &sourcespb.GCS{
ProjectId: c.ProjectID,
IncludeBuckets: c.IncludeBuckets,
ExcludeBuckets: c.ExcludeBuckets,
IncludeObjects: c.IncludeObjects,
ExcludeObjects: c.ExcludeObjects,
}
// Make sure only one auth method is selected.
if !isAuthValid(ctx, c, connection) {
return fmt.Errorf("multiple auth methods selected, please select only one")
}
var conn anypb.Any
err := anypb.MarshalFrom(&conn, connection, proto.MarshalOptions{})
if err != nil {
return fmt.Errorf("failed to marshal GCS connection: %w", err)
}
source := gcs.Source{}
ctx = context.WithValues(ctx,
"source_type", source.Type().String(),
"source_name", "gcs",
)
if err = source.Init(ctx, "trufflehog - GCS", 0, 0, true, &conn, int(c.Concurrency)); err != nil {
return fmt.Errorf("failed to initialize GCS source: %w", err)
}
e.sourcesWg.Add(1)
go func() {
defer common.RecoverWithExit(ctx)
defer e.sourcesWg.Done()
if err := source.Chunks(ctx, e.ChunksChan()); err != nil {
ctx.Logger().Error(err, "could not scan GCS")
}
}()
return nil
}
func isAuthValid(ctx context.Context, c sources.GCSConfig, connection *sourcespb.GCS) bool {
var isAuthSelected bool
if c.WithoutAuth {
isAuthSelected = true
connection.Credential = &sourcespb.GCS_Unauthenticated{}
}
if c.CloudCred {
if isAuthSelected {
return false
}
isAuthSelected = true
connection.Credential = &sourcespb.GCS_Adc{}
}
if c.ServiceAccount != "" {
if isAuthSelected {
return false
}
isAuthSelected = true
connection.Credential = &sourcespb.GCS_ServiceAccountFile{
ServiceAccountFile: c.ServiceAccount,
}
}
if c.ApiKey != "" {
if isAuthSelected {
return false
}
isAuthSelected = true
connection.Credential = &sourcespb.GCS_ApiKey{
ApiKey: c.ApiKey,
}
}
if !isAuthSelected {
ctx.Logger().Info("no auth method selected, using unauthenticated")
connection.Credential = &sourcespb.GCS_Unauthenticated{}
}
return true
}