[feat] - S3 Progress Tracker (#3568)

* add config option for s3 resumption

* updates

* initial progress tracking logic

* more testing

* revert s3 source file

* UpdateScanProgress tests

* adjust

* updates

* invert

* updates

* updates

* fix

* update

* adjust test

* fix

* remove progress tracking

* address comments

* add comments
This commit is contained in:
ahrav
2024-11-16 12:18:23 -08:00
committed by GitHub
parent 03a69518d8
commit 656cdc0c63
3 changed files with 541 additions and 1 deletions
+216
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@@ -0,0 +1,216 @@
package s3
import (
"encoding/json"
"fmt"
"sync"
"github.com/aws/aws-sdk-go/service/s3"
"github.com/trufflesecurity/trufflehog/v3/pkg/context"
"github.com/trufflesecurity/trufflehog/v3/pkg/sources"
)
// ProgressTracker maintains scan progress state for S3 bucket scanning,
// enabling resumable scans by tracking which objects have been successfully processed.
// It provides checkpoints that can be used to resume interrupted scans without missing objects.
//
// S3 buckets are organized as flat namespaces of objects identified by unique keys.
// When listing objects, S3 returns paginated results with a maximum of 1000 objects per page.
// The ListObjectsV2 API accepts a 'StartAfter' parameter that allows resuming the listing
// from a specific object key.
//
// The tracker maintains state for the current page of objects (up to 1000) using a boolean array
// to track completion status and an ordered list to record the sequence of completions.
// This enables finding the highest consecutive completed index as a "low water mark".
//
// The key of the object at this index is encoded with the current bucket into a ResumeInfo checkpoint
// and persisted in the Progress.EncodedResumeInfo field as JSON. If a scan is interrupted, it can
// resume from the last checkpoint by using that key as StartAfter.
//
// The low water mark approach ensures scan reliability by only checkpointing consecutively completed
// objects. For example, if objects 0-5 and 7-8 are complete but 6 is incomplete, only objects 0-5
// will be checkpointed. While this may result in re-scanning objects 7-8 when resuming, it guarantees
// no objects are missed in case of interruption.
//
// When scanning multiple buckets, the current bucket is tracked in the checkpoint to enable
// resuming from the correct bucket. The scan will continue from the last checkpointed object
// in that bucket.
//
// For example, if scanning is interrupted after processing 1500 objects across 2 pages:
// Page 1 (objects 0-999): Fully processed, checkpoint saved at object 999
// Page 2 (objects 1000-1999): Partially processed through 1600, but only consecutive through 1499
// On resume: StartAfter=object1499 in saved bucket, scanning continues from object 1500
type ProgressTracker struct {
enabled bool
// completedObjects tracks which indices in the current page have been processed.
sync.Mutex
completedObjects []bool
completionOrder []int // Track the order in which objects complete
// progress holds the scan's overall progress state and enables persistence.
// The EncodedResumeInfo field stores the JSON-encoded ResumeInfo checkpoint.
progress *sources.Progress // Reference to source's Progress
}
const defaultMaxObjectsPerPage = 1000
// NewProgressTracker creates a new progress tracker for S3 scanning operations.
// The enabled parameter determines if progress tracking is active, and progress
// provides the underlying mechanism for persisting scan state.
func NewProgressTracker(ctx context.Context, enabled bool, progress *sources.Progress) *ProgressTracker {
ctx.Logger().Info("Creating progress tracker")
return &ProgressTracker{
// We are resuming if we have completed objects from a previous scan.
completedObjects: make([]bool, defaultMaxObjectsPerPage),
completionOrder: make([]int, 0, defaultMaxObjectsPerPage),
enabled: enabled,
progress: progress,
}
}
// Reset prepares the tracker for a new page of objects by clearing the completion state.
func (p *ProgressTracker) Reset() {
if !p.enabled {
return
}
p.Lock()
defer p.Unlock()
// Store the current completed count before moving to next page.
p.completedObjects = make([]bool, defaultMaxObjectsPerPage)
p.completionOrder = make([]int, 0, defaultMaxObjectsPerPage)
}
// ResumeInfo represents the state needed to resume an interrupted operation.
// It contains the necessary information to continue processing from the last
// successfully processed item.
type ResumeInfo struct {
CurrentBucket string `json:"current_bucket"` // Current bucket being scanned
StartAfter string `json:"start_after"` // Last processed object key
}
// GetResumePoint retrieves the last saved checkpoint state if one exists.
// It returns nil if progress tracking is disabled or no resume state exists.
// This method decodes the stored resume information and validates it contains
// the minimum required data to enable resumption.
func (p *ProgressTracker) GetResumePoint(ctx context.Context) (ResumeInfo, error) {
resume := ResumeInfo{}
if !p.enabled || p.progress.EncodedResumeInfo == "" {
return resume, nil
}
var resumeInfo ResumeInfo
if err := json.Unmarshal([]byte(p.progress.EncodedResumeInfo), &resumeInfo); err != nil {
return resume, fmt.Errorf("failed to decode resume info: %w", err)
}
if resumeInfo.CurrentBucket == "" {
ctx.Logger().V(2).Info("resume info is missing current bucket, resuming from the beginning")
return resume, nil
}
return ResumeInfo{CurrentBucket: resumeInfo.CurrentBucket, StartAfter: resumeInfo.StartAfter}, nil
}
// Complete marks the entire scanning operation as finished and clears the resume state.
// This should only be called once all scanning operations are complete.
func (p *ProgressTracker) Complete(_ context.Context, message string) error {
// Preserve existing progress counters while clearing resume state.
p.progress.SetProgressComplete(
int(p.progress.SectionsCompleted),
int(p.progress.SectionsRemaining),
message,
"", // Clear resume info as scanning is complete
)
return nil
}
// UpdateObjectProgress records successfully processed objects within the current page
// and maintains fine-grained resumption checkpoints. It uses a conservative tracking
// strategy that ensures no objects are missed by only checkpointing consecutively
// completed objects.
//
// This method manages the detailed object-level progress tracking and creates
// checkpoints that enable resumption of interrupted scans.
//
// This approach ensures scan reliability by only checkpointing consecutively completed
// objects. While this may result in re-scanning some objects when resuming, it guarantees
// no objects are missed in case of interruption.
//
// For example, consider scanning a page of 10 objects where objects 0-5 and 7-8 complete
// successfully but object 6 fails:
// - Objects completed: [0,1,2,3,4,5,7,8]
// - The checkpoint will only include objects 0-5 since they are consecutive
// - If scanning is interrupted and resumed:
// - Scan resumes after object 5 (the last checkpoint)
// - Objects 7-8 will be re-scanned even though they completed before
// - This ensures object 6 is not missed
func (p *ProgressTracker) UpdateObjectProgress(
ctx context.Context,
completedIdx int,
bucket string,
pageContents []*s3.Object,
) error {
if !p.enabled {
return nil
}
ctx = context.WithValues(ctx, "bucket", bucket, "completedIdx", completedIdx)
ctx.Logger().V(5).Info("Updating progress")
if completedIdx >= len(p.completedObjects) {
return fmt.Errorf("completed index %d exceeds maximum page size", completedIdx)
}
p.Lock()
defer p.Unlock()
// Only track completion if this is the first time this index is marked complete.
if !p.completedObjects[completedIdx] {
p.completedObjects[completedIdx] = true
p.completionOrder = append(p.completionOrder, completedIdx)
}
// Find the highest safe checkpoint we can create.
lastSafeIdx := -1
var safeIndices [defaultMaxObjectsPerPage]bool
// Mark all completed indices.
for _, idx := range p.completionOrder {
safeIndices[idx] = true
}
// Find the highest consecutive completed index.
for i := range len(p.completedObjects) {
if !safeIndices[i] {
break
}
lastSafeIdx = i
}
// Update progress if we have at least one completed object.
if lastSafeIdx < 0 {
return nil
}
obj := pageContents[lastSafeIdx]
info := &ResumeInfo{CurrentBucket: bucket, StartAfter: *obj.Key}
encoded, err := json.Marshal(info)
if err != nil {
return err
}
// Purposefully avoid updating any progress counts.
// Only update resume info.
p.progress.SetProgressComplete(
int(p.progress.SectionsCompleted),
int(p.progress.SectionsRemaining),
p.progress.Message,
string(encoded),
)
return nil
}
+325
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@@ -0,0 +1,325 @@
package s3
import (
"encoding/json"
"fmt"
"testing"
"github.com/aws/aws-sdk-go/service/s3"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/trufflesecurity/trufflehog/v3/pkg/context"
"github.com/trufflesecurity/trufflehog/v3/pkg/sources"
)
func TestProgressTrackerResumption(t *testing.T) {
ctx := context.Background()
// First scan - process 6 objects then interrupt.
initialProgress := &sources.Progress{}
tracker := NewProgressTracker(ctx, true, initialProgress)
firstPage := &s3.ListObjectsV2Output{
Contents: make([]*s3.Object, 12), // Total of 12 objects
}
for i := range 12 {
key := fmt.Sprintf("key-%d", i)
firstPage.Contents[i] = &s3.Object{Key: &key}
}
// Process first 6 objects.
for i := range 6 {
err := tracker.UpdateObjectProgress(ctx, i, "test-bucket", firstPage.Contents)
assert.NoError(t, err)
}
// Verify resume info is set correctly.
resumeInfo, err := tracker.GetResumePoint(ctx)
require.NoError(t, err)
assert.Equal(t, "test-bucket", resumeInfo.CurrentBucket)
assert.Equal(t, "key-5", resumeInfo.StartAfter)
// Resume scan with existing progress.
resumeTracker := NewProgressTracker(ctx, true, initialProgress)
resumePage := &s3.ListObjectsV2Output{
Contents: firstPage.Contents[6:], // Remaining 6 objects
}
// Process remaining objects.
for i := range len(resumePage.Contents) {
err := resumeTracker.UpdateObjectProgress(ctx, i, "test-bucket", resumePage.Contents)
assert.NoError(t, err)
}
// Verify final resume info.
finalResumeInfo, err := resumeTracker.GetResumePoint(ctx)
require.NoError(t, err)
assert.Equal(t, "test-bucket", finalResumeInfo.CurrentBucket)
assert.Equal(t, "key-11", finalResumeInfo.StartAfter)
}
func TestProgressTrackerReset(t *testing.T) {
tests := []struct {
name string
enabled bool
}{
{name: "reset with enabled tracker", enabled: true},
{name: "reset with disabled tracker", enabled: false},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
ctx := context.Background()
progress := new(sources.Progress)
tracker := NewProgressTracker(ctx, tt.enabled, progress)
tracker.completedObjects[1] = true
tracker.completedObjects[2] = true
tracker.Reset()
assert.Equal(t, defaultMaxObjectsPerPage, len(tracker.completedObjects),
"Reset changed the length of completed objects")
if tt.enabled {
// All values should be false after reset.
for i, isCompleted := range tracker.completedObjects {
assert.False(t, isCompleted,
"Reset did not clear completed object at index %d", i)
}
// Completion order should be empty.
assert.Equal(t, 0, len(tracker.completionOrder),
"Reset did not clear completion order")
}
})
}
}
func TestGetResumePoint(t *testing.T) {
tests := []struct {
name string
enabled bool
progress *sources.Progress
expectedResumeInfo ResumeInfo
expectError bool
}{
{
name: "valid resume info",
enabled: true,
progress: &sources.Progress{
EncodedResumeInfo: `{"current_bucket":"test-bucket","start_after":"test-key"}`,
},
expectedResumeInfo: ResumeInfo{CurrentBucket: "test-bucket", StartAfter: "test-key"},
},
{
name: "progress disabled",
enabled: false,
progress: &sources.Progress{
EncodedResumeInfo: `{"current_bucket":"test-bucket","start_after":"test-key"}`,
},
},
{
name: "empty encoded resume info",
enabled: true,
progress: &sources.Progress{EncodedResumeInfo: ""},
},
{
name: "empty current bucket",
enabled: true,
progress: &sources.Progress{
EncodedResumeInfo: `{"current_bucket":"","start_after":"test-key"}`,
},
},
{
name: "unmarshal error",
enabled: true,
progress: &sources.Progress{
EncodedResumeInfo: `{"current_bucket":123,"start_after":"test-key"}`, // Invalid JSON
},
expectedResumeInfo: ResumeInfo{},
expectError: true,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
tracker := &ProgressTracker{enabled: tt.enabled, progress: tt.progress}
resumePoint, err := tracker.GetResumePoint(context.Background())
if tt.expectError {
assert.Error(t, err, "Expected an error decoding resume info")
} else {
assert.NoError(t, err, "Expected no error decoding resume info")
}
assert.Equal(t, tt.expectedResumeInfo, resumePoint, "Unexpected resume point")
})
}
}
func TestProgressTrackerUpdateProgress(t *testing.T) {
tests := []struct {
name string
description string
completedIdx int
pageSize int
preCompleted []int
expectedKey string
}{
{
name: "first object completed",
description: "Basic case - completing first object",
completedIdx: 0,
pageSize: 3,
expectedKey: "key-0",
},
{
name: "completing missing middle",
description: "Completing object when previous is done",
completedIdx: 1,
pageSize: 3,
preCompleted: []int{0},
expectedKey: "key-1",
},
{
name: "all objects completed in order",
description: "Completing final object in sequence",
completedIdx: 2,
pageSize: 3,
preCompleted: []int{0, 1},
expectedKey: "key-2",
},
{
name: "last index in max page",
description: "Edge case - maximum page size boundary",
completedIdx: 999,
pageSize: 1000,
preCompleted: func() []int {
indices := make([]int, 999)
for i := range 999 {
indices[i] = i
}
return indices
}(),
expectedKey: "key-999",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
ctx := context.Background()
progress := new(sources.Progress)
tracker := &ProgressTracker{
enabled: true,
progress: progress,
completedObjects: make([]bool, tt.pageSize),
completionOrder: make([]int, 0, tt.pageSize),
}
page := &s3.ListObjectsV2Output{Contents: make([]*s3.Object, tt.pageSize)}
for i := range tt.pageSize {
key := fmt.Sprintf("key-%d", i)
page.Contents[i] = &s3.Object{Key: &key}
}
// Apply pre-completed indices in order.
if tt.preCompleted != nil {
for _, idx := range tt.preCompleted {
tracker.completedObjects[idx] = true
tracker.completionOrder = append(tracker.completionOrder, idx)
}
}
err := tracker.UpdateObjectProgress(ctx, tt.completedIdx, "test-bucket", page.Contents)
assert.NoError(t, err, "Unexpected error updating progress")
var info ResumeInfo
err = json.Unmarshal([]byte(progress.EncodedResumeInfo), &info)
assert.NoError(t, err, "Failed to decode resume info")
assert.Equal(t, tt.expectedKey, info.StartAfter, "Incorrect resume point")
})
}
}
func TestComplete(t *testing.T) {
tests := []struct {
name string
enabled bool
initialState struct {
resumeInfo string
message string
}
completeMessage string
wantState struct {
resumeInfo string
message string
}
}{
{
name: "marks completion with existing resume info",
enabled: true,
initialState: struct {
resumeInfo string
message string
}{
resumeInfo: `{"current_bucket":"test-bucket","start_after":"some-key"}`,
message: "In progress",
},
completeMessage: "Scan complete",
wantState: struct {
resumeInfo string
message string
}{
resumeInfo: "", // Should clear resume info
message: "Scan complete",
},
},
{
name: "disabled tracker",
enabled: false,
initialState: struct {
resumeInfo string
message string
}{
resumeInfo: "",
message: "Should not change",
},
completeMessage: "Completed",
wantState: struct {
resumeInfo string
message string
}{
resumeInfo: "",
message: "Completed",
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
ctx := context.Background()
progress := &sources.Progress{
EncodedResumeInfo: tt.initialState.resumeInfo,
Message: tt.initialState.message,
}
tracker := NewProgressTracker(ctx, tt.enabled, progress)
err := tracker.Complete(ctx, tt.completeMessage)
assert.NoError(t, err)
assert.Equal(t, tt.wantState.resumeInfo, progress.EncodedResumeInfo)
assert.Equal(t, tt.wantState.message, progress.Message)
})
}
}
-1
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@@ -14,7 +14,6 @@ import (
"github.com/trufflesecurity/trufflehog/v3/pkg/common"
"github.com/trufflesecurity/trufflehog/v3/pkg/pb/credentialspb"
"github.com/trufflesecurity/trufflehog/v3/pkg/context"
"github.com/trufflesecurity/trufflehog/v3/pkg/pb/sourcespb"
"github.com/trufflesecurity/trufflehog/v3/pkg/sources"