Files
new-api-custom/controller/detection_worker.go
T
cneicy ceddfd3d6b feat: sync deployed v1.0.0-rc.38-custom.42
Sync production source including routing, billing, Astra detection and public uptime. Update custom build instructions and license packaging.
2026-09-26 04:49:11 +08:00

411 lines
13 KiB
Go

package controller
import (
"bytes"
"context"
"crypto/hmac"
"crypto/sha256"
"encoding/hex"
"errors"
"fmt"
"io"
"net/http"
"strconv"
"strings"
"sync"
"time"
"github.com/QuantumNous/new-api/common"
"github.com/QuantumNous/new-api/model"
fingerprint "github.com/QuantumNous/new-api/pkg/model_fingerprint"
"github.com/QuantumNous/new-api/service"
"github.com/tidwall/gjson"
)
type detectionHandler struct{}
func pelicanCredential(id string) string {
mac := hmac.New(sha256.New, []byte(common.SessionSecret))
mac.Write([]byte("newapi-pelican-credential-v1:" + id))
return "det_" + hex.EncodeToString(mac.Sum(nil))
}
func (detectionHandler) Type() string { return "group_detection" }
func (detectionHandler) Enabled() bool {
return common.GetEnvOrDefaultBool("PELICAN_DETECTION_ENABLED", true)
}
func (detectionHandler) Interval() time.Duration { return 15 * time.Second }
func (detectionHandler) NewPayload() any { return nil }
func (detectionHandler) Run(ctx context.Context, task *model.SystemTask, runner string) {
_ = model.DeliverDetectionLogs()
// Keep accounting facts, but expire bulky generated artwork after the public window.
_ = model.DB.Model(&model.DetectionRun{}).Where("settled = ? AND created_at < ? AND html <> ?", true, time.Now().Add(-6*time.Hour).Unix(), "").Update("html", "").Error
scheduleErr := schedulePelicanDetections(ctx)
var err error
{
var runs []model.DetectionRun
err = model.DB.Where("settled = ?", false).Order("created_at asc").Find(&runs).Error
if err == nil {
jobs := make(chan model.DetectionRun)
var workers sync.WaitGroup
for range 2 {
workers.Go(func() {
for run := range jobs {
processDetection(ctx, run)
}
})
}
for _, run := range runs {
select {
case jobs <- run:
case <-ctx.Done():
}
}
close(jobs)
workers.Wait()
}
}
if err == nil {
err = scheduleErr
}
status := model.SystemTaskStatusSucceeded
if err != nil {
status = model.SystemTaskStatusFailed
}
finishSystemTaskHandler(task, runner, status, nil, err)
}
func schedulePelicanDetections(ctx context.Context) error {
channels, schedules, err := service.AutomaticDetectionChannelsDue(ctx, "pelican", time.Now())
if err != nil {
return err
}
now := time.Now().Unix()
for _, channel := range channels {
groups := channel.GetGroups()
if len(groups) == 0 {
continue
}
price, reserve, priceErr := service.DetectionPricing("", groups[0], "pelican")
if priceErr != nil {
return priceErr
}
created := time.Unix(now, 0)
price.Request.At = &created
encoded, _ := common.Marshal(price)
id, err := common.GenerateRandomCharsKey(32)
if err != nil {
return err
}
run := &model.DetectionRun{ID: id, RequestKey: fmt.Sprintf("adaptive:%d:%s", channel.Id, schedules[channel.Id].LastResultID), ChannelID: channel.Id, GroupName: groups[0], Kind: "pelican", Status: "pending", CreatedAt: now, Price: string(encoded), Reserved: reserve}
if err = model.CreateDetection(run); err != nil {
return err
}
}
return nil
}
func processDetection(ctx context.Context, run model.DetectionRun) {
if ctx.Err() != nil {
return
}
if run.Deadline == 0 {
run.Deadline = time.Now().Unix() + 600
if model.DB.Model(&model.DetectionRun{}).Where("id = ? AND deadline = 0", run.ID).Updates(map[string]any{"deadline": run.Deadline, "status": "running"}).Error != nil {
return
}
}
taskCtx, taskCancel := context.WithDeadline(ctx, time.Unix(run.Deadline, 0))
defer taskCancel()
if time.Now().Unix() >= run.Deadline {
var calls []model.DetectionCall
if model.DB.Where("run_id = ?", run.ID).Find(&calls).Error != nil {
return
}
for _, call := range calls {
if call.State != "running" {
continue
}
if cancel, ok := detectionCalls.Load(call.ID); ok {
cancel.(context.CancelFunc)()
return
}
// All proxy contexts expire before the task deadline. A vanished process
// cannot resume or recharge this consumed credential.
call.Error = "interrupted_usage_unknown"
call.Quota = 0
_ = model.FinishDetectionCall(&call)
}
if run.RemoteID != "" {
cancelCtx, cancel := context.WithTimeout(ctx, 5*time.Second)
_, _ = manxueRunRequest(cancelCtx, &run, http.MethodDelete, "/api/v1/tests/"+run.RemoteID, nil, "")
cancel()
}
finishDetection(run, "failed", "detection_timeout")
return
}
if run.Status == "succeeded" || run.Status == "failed" {
settleDetectionAndSchedule(run)
return
}
if run.Kind == "fingerprint" {
processPaidFingerprint(ctx, run)
return
}
if run.RemoteID == localPelicanID {
processLocalPelican(taskCtx, run)
return
}
if run.RemoteID == "" {
var existing int64
if model.DB.Model(&model.DetectionCall{}).Where("run_id = ?", run.ID).Count(&existing).Error != nil {
return
}
// A domain-separated PRF allows safe retry after a submit/commit crash;
// only its digest is stored, and the random run ID prevents enumeration.
secret := pelicanCredential(run.ID)
call := model.DetectionCall{ID: run.ID, RunID: run.ID, SecretHash: model.DetectionSecretHash(secret), ExpiresAt: run.Deadline + 300, State: "ready"}
if existing == 0 && model.DB.Create(&call).Error != nil {
return
}
payload := map[string]any{"benchmark": "pelican", "base_url": "https://ai.shrinken.pw/api/detection-proxy/v1", "api_key": secret, "model": fingerprint.Model, "protocol": "responses", "reasoning_effort": "high"}
var result gjson.Result
var err error
for taskCtx.Err() == nil {
result, err = manxueRunRequest(taskCtx, &run, http.MethodPost, "/api/v1/tests", payload, run.ID)
if errors.Is(err, errDetectionServiceUnavailable) && taskCtx.Err() == nil {
processLocalPelican(taskCtx, run)
return
}
if err == nil {
break
}
select {
case <-taskCtx.Done():
case <-time.After(5 * time.Second):
}
}
if err != nil || taskCtx.Err() != nil {
if ctx.Err() == nil {
processDetection(ctx, run)
}
return
}
remoteID := result.Get("id").String()
if remoteID == "" || len(remoteID) > 128 || strings.ContainsAny(remoteID, "/?#\\") {
finishDetection(run, "failed", "invalid_detection_response")
return
}
if model.DB.Model(&model.DetectionRun{}).Where("id = ?", run.ID).Updates(map[string]any{"remote_id": remoteID, "status": "running"}).Error != nil {
return
}
run.RemoteID = remoteID
}
// Each worker retains its slot until completion, limiting remote generation
// concurrency as well as local submission concurrency.
for time.Now().Unix() < run.Deadline {
result, err := manxueRunRequest(taskCtx, &run, http.MethodGet, "/api/v1/tests/"+run.RemoteID, nil, "")
if errors.Is(err, errDetectionServiceUnavailable) && taskCtx.Err() == nil {
processLocalPelican(taskCtx, run)
return
}
if err != nil {
select {
case <-ctx.Done():
return
case <-time.After(5 * time.Second):
}
continue
}
switch result.Get("status").String() {
case "succeeded":
quality := result.Get("assessment.quality").String()
if quality != "normal" && quality != "degraded" {
quality = "unknown"
}
html := result.Get("result.html").String()
if len(html) > 2<<20 {
html = ""
}
metadata, _ := common.Marshal(map[string]string{"source_url": manxueArtworkURL(result)})
if model.DB.Model(&model.DetectionRun{}).Where("id = ?", run.ID).Updates(map[string]any{"quality": quality, "html": html, "result": string(metadata)}).Error != nil {
return
}
finishDetection(run, "succeeded", "")
return
case "failed", "cancelled":
finishDetection(run, "failed", "detection_service_failed")
return
}
select {
case <-ctx.Done():
return
case <-time.After(5 * time.Second):
}
}
processDetection(ctx, run)
}
func finishDetection(run model.DetectionRun, status, reason string) {
updates := map[string]any{"status": status, "error": reason}
if status == "failed" && run.Kind == "pelican" {
updates["result"] = ""
}
if model.DB.Model(&model.DetectionRun{}).Where("id = ?", run.ID).Updates(updates).Error != nil {
return
}
settleDetectionAndSchedule(run)
}
func settleDetectionAndSchedule(run model.DetectionRun) {
if model.SettleDetection(run.ID) != nil || run.UserID != 0 || run.Kind != "pelican" {
return
}
// Reconciliation also repairs the clock if a process exits after settlement.
if err := model.DB.Select("id", "channel_id", "finished_at", "status", "quality").First(&run, "id = ?", run.ID).Error; err != nil {
return
}
outcome := "unknown"
if run.Status == "succeeded" {
outcome = run.Quality
}
_ = model.ApplyDetectionScheduleResult(context.Background(), run.ChannelID, "pelican", run.ID, run.FinishedAt, outcome)
}
func manxueRequest(ctx context.Context, method, path string, payload any, key string) (gjson.Result, error) {
client := &http.Client{Timeout: 35 * time.Second, CheckRedirect: func(*http.Request, []*http.Request) error { return http.ErrUseLastResponse }}
return manxueRequestWithClient(ctx, client, method, path, payload, key)
}
func manxueRequestWithClient(ctx context.Context, client *http.Client, method, path string, payload any, key string) (gjson.Result, error) {
var encoded []byte
if payload != nil {
var err error
encoded, err = common.Marshal(payload)
if err != nil {
return gjson.Result{}, err
}
}
for attempt := 0; attempt < 3; attempt++ {
req, err := http.NewRequestWithContext(ctx, method, "https://manxue.ai"+path, bytes.NewReader(encoded))
if err != nil {
return gjson.Result{}, err
}
req.Header.Set("Content-Type", "application/json")
req.Header.Set("User-Agent", "Mozilla/5.0")
if strings.HasPrefix(path, "/api/visitor/") {
req.Header.Set("Origin", "https://manxue.ai")
}
if key != "" {
req.Header.Set("Idempotency-Key", key)
}
resp, err := client.Do(req)
if err != nil {
return gjson.Result{}, errDetectionServiceUnavailable
}
body, readErr := io.ReadAll(io.LimitReader(resp.Body, (3<<20)+1))
resp.Body.Close()
if readErr != nil || resp.StatusCode >= 500 {
return gjson.Result{}, errDetectionServiceUnavailable
}
if resp.StatusCode == 429 || resp.StatusCode == 503 {
seconds, _ := strconv.Atoi(resp.Header.Get("Retry-After"))
if at, err := http.ParseTime(resp.Header.Get("Retry-After")); err == nil {
seconds = int(time.Until(at).Seconds()) + 1
}
seconds = max(seconds, 2<<attempt)
select {
case <-ctx.Done():
return gjson.Result{}, ctx.Err()
case <-time.After(time.Duration(seconds) * time.Second):
}
continue
}
if readErr != nil || len(body) > 3<<20 || resp.StatusCode < 200 || resp.StatusCode >= 300 || !gjson.ValidBytes(body) {
return gjson.Result{}, errors.New("invalid detection service response")
}
return gjson.ParseBytes(body), nil
}
return gjson.Result{}, errDetectionServiceUnavailable
}
func processPaidFingerprint(ctx context.Context, run model.DetectionRun) {
channel, err := model.GetChannelById(run.ChannelID, true)
if err != nil || channel.Status != common.ChannelStatusEnabled {
finishDetection(run, "failed", "channel_unavailable")
return
}
samples := []fingerprint.Sample{}
for index := 0; index < 3; index++ {
id := fmt.Sprintf("%s_%d", run.ID, index)
var previous []model.DetectionCall
if model.DB.Where("id = ?", id).Find(&previous).Error != nil {
return
}
if len(previous) > 0 {
if previous[0].State == "running" {
return
}
var sample fingerprint.Sample
if previous[0].Sample != "" && common.UnmarshalJsonStr(previous[0].Sample, &sample) == nil {
samples = append(samples, sample)
}
continue
}
call := model.DetectionCall{ID: id, RunID: run.ID, SecretHash: model.DetectionSecretHash(id), State: "running", StartedAt: time.Now().Unix()}
if model.DB.Create(&call).Error != nil {
return
}
probeCtx, cancel := context.WithDeadline(ctx, time.Unix(run.Deadline-10, 0))
detectionCalls.Store(call.ID, cancel)
answer, count, probeErr := runAstraFingerprintProbe(probeCtx, channel, true)
interrupted := probeCtx.Err() != nil
cancel()
available := probeErr == nil || answer.HasUsage
call.Available = &available
if !answer.HasUsage && (errors.Is(probeErr, fingerprint.ErrInvalidSample) || errors.Is(probeErr, fingerprint.ErrIncomplete) || interrupted) {
call.Available = nil
}
if probeErr != nil {
call.Error = "channel_call_failed"
}
if answer.HasUsage {
usage, _ := common.Marshal(answer)
call.Usage = string(usage)
quota, quotaErr := service.DetectionUsageQuota(run.Price, answer.InputTokens, answer.OutputTokens, answer.CachedTokens, answer.CacheWriteTokens)
if quotaErr != nil || quota > run.Reserved/3 {
call.Error = "settlement_unavailable"
} else {
call.Quota = quota
}
} else {
call.Error = "usage_unavailable"
}
if probeErr == nil && fingerprint.ValidArray(answer.Text, count) {
sample := fingerprint.Sample{Text: answer.Text, Count: count}
samples = append(samples, sample)
encoded, _ := common.Marshal(sample)
call.Sample = string(encoded)
}
if model.FinishDetectionCall(&call) != nil {
detectionCalls.Delete(call.ID)
return
}
detectionCalls.Delete(call.ID)
if ctx.Err() != nil {
return
}
}
result, err := fingerprint.Score(samples)
if err != nil {
finishDetection(run, "failed", "scoring_failed")
return
}
encoded, _ := common.Marshal(result)
if model.DB.Model(&model.DetectionRun{}).Where("id = ?", run.ID).Updates(map[string]any{"quality": result.Status, "result": string(encoded)}).Error != nil {
return
}
finishDetection(run, "succeeded", "")
}