feat(kling): 接入 Omni 视频兼容接口

This commit is contained in:
2026-07-22 00:25:05 +08:00
parent b04a7d9d3d
commit 5a71643099
10 changed files with 1886 additions and 7 deletions
@@ -0,0 +1,885 @@
package httpapi
import (
"context"
"crypto/rand"
"encoding/hex"
"encoding/json"
"errors"
"fmt"
"math"
"net/http"
"strconv"
"strings"
"time"
"github.com/easyai/easyai-ai-gateway/apps/api/internal/auth"
"github.com/easyai/easyai-ai-gateway/apps/api/internal/clients"
"github.com/easyai/easyai-ai-gateway/apps/api/internal/store"
)
const kelingOmniCompatibilityMarker = "keling_omni_v1"
type kelingCompatRequestIDKey struct{}
type KelingOmniVideoRequest struct {
ModelName string `json:"model_name" example:"kling-v3-omni"`
Prompt string `json:"prompt" example:"A quiet street in the rain with natural ambient sound"`
MultiShot bool `json:"multi_shot" example:"false"`
ShotType string `json:"shot_type,omitempty" example:"customize"`
MultiPrompt []KelingOmniMultiPrompt `json:"multi_prompt,omitempty"`
ImageList []KelingOmniImageInput `json:"image_list,omitempty"`
ElementList []KelingOmniElementInput `json:"element_list,omitempty"`
VideoList []KelingOmniVideoInput `json:"video_list,omitempty"`
Sound string `json:"sound" enums:"on,off" example:"on"`
Mode string `json:"mode" enums:"std,pro,4k" example:"pro"`
AspectRatio string `json:"aspect_ratio" enums:"16:9,9:16,1:1" example:"9:16"`
Duration any `json:"duration" swaggertype:"string" example:"5"`
WatermarkInfo KelingOmniWatermarkInfo `json:"watermark_info,omitempty"`
CallbackURL string `json:"callback_url,omitempty"`
ExternalTask string `json:"external_task_id,omitempty"`
}
type KelingOmniMultiPrompt struct {
Index int `json:"index" example:"1"`
Prompt string `json:"prompt" example:"A wide establishing shot"`
Duration any `json:"duration" swaggertype:"string" example:"3"`
}
type KelingOmniImageInput struct {
ImageURL string `json:"image_url"`
Type string `json:"type,omitempty" enums:"first_frame,end_frame"`
}
type KelingOmniElementInput struct {
ElementID any `json:"element_id"`
}
type KelingOmniVideoInput struct {
VideoURL string `json:"video_url"`
ReferType string `json:"refer_type,omitempty" enums:"base,feature"`
KeepOriginalSound string `json:"keep_original_sound,omitempty" enums:"yes,no"`
}
type KelingOmniWatermarkInfo struct {
Enabled bool `json:"enabled" example:"false"`
}
type KelingCompatibleEnvelope struct {
Code int `json:"code" example:"0"`
Message string `json:"message" example:"SUCCEED"`
RequestID string `json:"request_id"`
Data any `json:"data,omitempty"`
}
type kelingCompatError struct {
HTTPStatus int
Code int
Message string
RequestID string
}
func (e *kelingCompatError) Error() string {
if e == nil {
return "keling compatibility error"
}
return e.Message
}
func newKelingCompatError(status int, code int, message string) *kelingCompatError {
return &kelingCompatError{HTTPStatus: status, Code: code, Message: message}
}
func (s *Server) requireKelingAPIKey(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
requestID := newKelingCompatRequestID(r)
r = r.WithContext(context.WithValue(r.Context(), kelingCompatRequestIDKey{}, requestID))
user, err := s.auth.Authenticate(r)
if err != nil {
code := 1002
message := "Authorization is invalid"
if strings.TrimSpace(r.Header.Get("Authorization")) == "" {
code = 1001
message = "Authorization is required"
}
writeKelingCompatError(w, requestID, newKelingCompatError(http.StatusUnauthorized, code, message))
return
}
if user == nil || strings.TrimSpace(user.APIKeyID) == "" {
writeKelingCompatError(w, requestID, newKelingCompatError(http.StatusUnauthorized, 1002, "a Gateway API Key is required"))
return
}
if !apiKeyScopeAllowed(user, "videos.generations") {
writeKelingCompatError(w, requestID, newKelingCompatError(http.StatusForbidden, 1103, "API Key scope does not allow video generation"))
return
}
next.ServeHTTP(w, r.WithContext(auth.WithUser(r.Context(), user)))
})
}
// createKelingOmniVideo godoc
// @Summary 创建 Kling Omni 视频任务
// @Description 兼容 Kling 旧版 /v1/videos/omni-videoBearer token 必须为 Gateway API Key。任务固定异步执行,返回的 task_id 为网关任务 ID。
// @Tags kling-compatible
// @Accept json
// @Produce json
// @Security BearerAuth
// @Param input body KelingOmniVideoRequest true "Kling Omni 官方兼容请求"
// @Success 200 {object} KelingCompatibleEnvelope
// @Failure 400 {object} KelingCompatibleEnvelope
// @Failure 401 {object} KelingCompatibleEnvelope
// @Failure 403 {object} KelingCompatibleEnvelope
// @Failure 429 {object} KelingCompatibleEnvelope
// @Failure 500 {object} KelingCompatibleEnvelope
// @Failure 503 {object} KelingCompatibleEnvelope
// @Router /v1/videos/omni-video [post]
func (s *Server) createKelingOmniVideo(w http.ResponseWriter, r *http.Request) {
requestID := kelingCompatRequestID(r)
user, ok := auth.UserFromContext(r.Context())
if !ok || user == nil {
writeKelingCompatError(w, requestID, newKelingCompatError(http.StatusUnauthorized, 1002, "Authorization is invalid"))
return
}
body, err := s.decodeTaskRequestBody(r.Context(), w, r, "videos.generations")
if err != nil {
writeKelingCompatError(w, requestID, newKelingCompatError(http.StatusBadRequest, 1201, err.Error()))
return
}
normalized, compatErr := normalizeKelingOmniRequest(body)
if compatErr != nil {
writeKelingCompatError(w, requestID, compatErr)
return
}
model := strings.TrimSpace(stringFromKelingCompat(normalized["model"]))
if normalized["resolution"] == "2160p" {
candidates, candidateErr := s.store.ListModelCandidates(r.Context(), model, "omni_video", user)
if candidateErr != nil {
writeKelingCompatError(w, requestID, kelingCompatGatewayError(candidateErr))
return
}
if !kelingCompatCandidatesSupport4K(candidates) {
writeKelingCompatError(w, requestID, newKelingCompatError(http.StatusBadRequest, 1201, "mode=4k is not enabled by the selected model capabilities"))
return
}
}
task, createErr := s.prepareAndCreateGatewayTask(
r.Context(),
r,
user,
"videos.generations",
model,
normalized,
true,
)
if createErr != nil {
var staged *gatewayTaskCreationError
if errors.As(createErr, &staged) && staged.Stage == gatewayTaskCreationPrepare {
writeKelingCompatError(w, requestID, kelingCompatGatewayError(staged.Err))
return
}
s.logger.Error("create Kling-compatible task failed", "error", createErr)
writeKelingCompatError(w, requestID, newKelingCompatError(http.StatusInternalServerError, 5000, "create task failed"))
return
}
if err := s.runner.EnqueueAsyncTask(r.Context(), task); err != nil {
s.logger.Error("enqueue Kling-compatible task failed", "taskId", task.ID, "error", err)
writeKelingCompatError(w, requestID, newKelingCompatError(http.StatusServiceUnavailable, 5001, "video task queue is unavailable"))
return
}
writeJSON(w, http.StatusOK, KelingCompatibleEnvelope{
Code: 0,
Message: "SUCCEED",
RequestID: requestID,
Data: kelingCompatTaskData(task),
})
}
// getKelingOmniVideo godoc
// @Summary 查询 Kling Omni 视频任务
// @Description 按创建接口返回的网关 task_id 查询任务;仅允许创建任务的 Gateway 用户访问。
// @Tags kling-compatible
// @Produce json
// @Security BearerAuth
// @Param taskID path string true "网关任务 ID"
// @Success 200 {object} KelingCompatibleEnvelope
// @Failure 401 {object} KelingCompatibleEnvelope
// @Failure 403 {object} KelingCompatibleEnvelope
// @Failure 404 {object} KelingCompatibleEnvelope
// @Failure 500 {object} KelingCompatibleEnvelope
// @Router /v1/videos/omni-video/{taskID} [get]
func (s *Server) getKelingOmniVideo(w http.ResponseWriter, r *http.Request) {
requestID := kelingCompatRequestID(r)
user, ok := auth.UserFromContext(r.Context())
if !ok || user == nil {
writeKelingCompatError(w, requestID, newKelingCompatError(http.StatusUnauthorized, 1002, "Authorization is invalid"))
return
}
task, err := s.store.GetTask(r.Context(), strings.TrimSpace(r.PathValue("taskID")))
if err != nil {
if store.IsNotFound(err) {
writeKelingCompatError(w, requestID, newKelingCompatError(http.StatusNotFound, 1203, "task not found"))
return
}
s.logger.Error("get Kling-compatible task failed", "error", err)
writeKelingCompatError(w, requestID, newKelingCompatError(http.StatusInternalServerError, 5000, "query task failed"))
return
}
if !kelingCompatTaskOwnedBy(task, user) || !isKelingCompatTask(task) {
writeKelingCompatError(w, requestID, newKelingCompatError(http.StatusNotFound, 1203, "task not found"))
return
}
writeJSON(w, http.StatusOK, KelingCompatibleEnvelope{
Code: 0,
Message: "SUCCEED",
RequestID: requestID,
Data: kelingCompatTaskData(task),
})
}
func normalizeKelingOmniRequest(input map[string]any) (map[string]any, *kelingCompatError) {
if input == nil {
input = map[string]any{}
}
if callbackURL := strings.TrimSpace(stringFromKelingCompat(input["callback_url"])); callbackURL != "" {
return nil, newKelingCompatError(http.StatusBadRequest, 1201, "callback_url is not supported by this Gateway endpoint")
}
requestedModel := strings.TrimSpace(stringFromKelingCompat(input["model_name"]))
if requestedModel == "" {
requestedModel = "kling-video-o1"
}
model, maxDuration, ok := kelingCompatModel(requestedModel)
if !ok {
return nil, newKelingCompatError(http.StatusNotFound, 1203, "unsupported model_name: "+requestedModel)
}
mode := strings.ToLower(strings.TrimSpace(stringFromKelingCompat(input["mode"])))
if mode == "" {
mode = "pro"
}
resolutionByMode := map[string]string{"std": "720p", "pro": "1080p", "4k": "2160p"}
resolution := resolutionByMode[mode]
if resolution == "" {
return nil, newKelingCompatError(http.StatusBadRequest, 1201, "mode must be std, pro, or 4k")
}
sound := strings.ToLower(strings.TrimSpace(stringFromKelingCompat(input["sound"])))
if sound == "" {
sound = "off"
}
if sound != "on" && sound != "off" {
return nil, newKelingCompatError(http.StatusBadRequest, 1201, "sound must be on or off")
}
if model == "kling-o1" && sound == "on" {
return nil, newKelingCompatError(http.StatusBadRequest, 1201, "kling-video-o1 does not support generated audio; sound must be off")
}
content := make([]any, 0)
prompt := strings.TrimSpace(stringFromKelingCompat(input["prompt"]))
images, hasFirstFrame, imageErr := normalizeKelingImageList(input["image_list"])
if imageErr != nil {
return nil, imageErr
}
content = append(content, images...)
elements, elementErr := normalizeKelingElementList(input["element_list"])
if elementErr != nil {
return nil, elementErr
}
content = append(content, elements...)
videos, hasBaseVideo, hasVideo, videoErr := normalizeKelingVideoList(input["video_list"])
if videoErr != nil {
return nil, videoErr
}
content = append(content, videos...)
if hasVideo && sound == "on" {
return nil, newKelingCompatError(http.StatusBadRequest, 1201, "sound must be off when video_list is provided")
}
multiShot, multiShotPresent, boolErr := kelingCompatOptionalBool(input, "multi_shot")
if boolErr != nil {
return nil, boolErr
}
shotType := strings.ToLower(strings.TrimSpace(stringFromKelingCompat(input["shot_type"])))
multiPrompts, shotDuration, multiPromptErr := normalizeKelingMultiPrompts(input["multi_prompt"])
if multiPromptErr != nil {
return nil, multiPromptErr
}
if !multiShotPresent {
multiShot = false
}
if multiShot {
if shotType != "customize" && shotType != "intelligence" {
return nil, newKelingCompatError(http.StatusBadRequest, 1201, "shot_type must be customize or intelligence when multi_shot is true")
}
if shotType == "customize" && len(multiPrompts) == 0 {
return nil, newKelingCompatError(http.StatusBadRequest, 1201, "multi_prompt is required for customized multi-shot generation")
}
if shotType == "intelligence" && len(multiPrompts) > 0 {
return nil, newKelingCompatError(http.StatusBadRequest, 1201, "multi_prompt is only supported when shot_type is customize")
}
} else if len(multiPrompts) > 0 || shotType != "" {
return nil, newKelingCompatError(http.StatusBadRequest, 1201, "shot_type and multi_prompt require multi_shot=true")
}
if (len(multiPrompts) == 0 || shotType == "intelligence") && prompt == "" {
return nil, newKelingCompatError(http.StatusBadRequest, 1201, "prompt is required")
}
if prompt != "" {
content = append([]any{map[string]any{"type": "text", "text": prompt}}, content...)
}
content = append(content, multiPrompts...)
duration, durationProvided, durationErr := kelingCompatOptionalInt(input, "duration")
if durationErr != nil {
return nil, durationErr
}
if hasBaseVideo {
if durationProvided {
return nil, newKelingCompatError(http.StatusBadRequest, 1201, "duration is not supported for base video editing")
}
} else {
if len(multiPrompts) > 0 {
if durationProvided && duration != shotDuration {
return nil, newKelingCompatError(http.StatusBadRequest, 1201, "duration must equal the sum of multi_prompt durations")
}
duration = shotDuration
} else if !durationProvided {
duration = 5
}
if duration < 3 || duration > maxDuration {
return nil, newKelingCompatError(http.StatusBadRequest, 1201, fmt.Sprintf("duration for %s must be an integer between 3 and %d seconds", requestedModel, maxDuration))
}
if model == "kling-o1" && (len(images) == 0 || hasFirstFrame) && duration != 5 && duration != 10 {
return nil, newKelingCompatError(http.StatusBadRequest, 1201, "kling-video-o1 text-to-video and first-frame generation only support 5 or 10 seconds")
}
}
aspectRatio := strings.TrimSpace(stringFromKelingCompat(input["aspect_ratio"]))
if aspectRatio != "" && aspectRatio != "16:9" && aspectRatio != "9:16" && aspectRatio != "1:1" {
return nil, newKelingCompatError(http.StatusBadRequest, 1201, "aspect_ratio must be 16:9, 9:16, or 1:1")
}
if hasFirstFrame || hasBaseVideo {
if aspectRatio != "" {
return nil, newKelingCompatError(http.StatusBadRequest, 1201, "aspect_ratio is not supported with a first frame or base video")
}
} else if aspectRatio == "" {
return nil, newKelingCompatError(http.StatusBadRequest, 1201, "aspect_ratio is required when no first frame or base video is provided")
}
watermarkEnabled, watermarkErr := kelingCompatWatermarkEnabled(input["watermark_info"])
if watermarkErr != nil {
return nil, watermarkErr
}
externalTaskID := strings.TrimSpace(stringFromKelingCompat(input["external_task_id"]))
normalized := map[string]any{
"model": model,
"model_name": requestedModel,
"modelType": "omni_video",
"runMode": "real",
"content": content,
"resolution": resolution,
"mode": mode,
"sound": sound,
"audio": sound == "on",
"multi_shot": multiShot,
"watermark": watermarkEnabled,
"watermark_info": map[string]any{"enabled": watermarkEnabled},
"external_task_id": externalTaskID,
"_gateway_compatibility": kelingOmniCompatibilityMarker,
}
if prompt != "" {
normalized["prompt"] = prompt
}
if shotType != "" {
normalized["shot_type"] = shotType
}
if !hasBaseVideo {
normalized["duration"] = duration
}
if aspectRatio != "" {
normalized["aspect_ratio"] = aspectRatio
}
return normalized, nil
}
func normalizeKelingImageList(value any) ([]any, bool, *kelingCompatError) {
items, err := kelingCompatObjectList(value, "image_list")
if err != nil {
return nil, false, err
}
out := make([]any, 0, len(items))
hasFirstFrame := false
hasEndFrame := false
for index, item := range items {
url := strings.TrimSpace(stringFromKelingCompat(item["image_url"]))
if url == "" {
return nil, false, newKelingCompatError(http.StatusBadRequest, 1201, fmt.Sprintf("image_list[%d].image_url is required", index))
}
frameType := strings.TrimSpace(stringFromKelingCompat(item["type"]))
role := "reference_image"
switch frameType {
case "":
case "first_frame":
role = "first_frame"
hasFirstFrame = true
case "end_frame":
role = "last_frame"
hasEndFrame = true
default:
return nil, false, newKelingCompatError(http.StatusBadRequest, 1201, fmt.Sprintf("image_list[%d].type must be first_frame or end_frame", index))
}
out = append(out, map[string]any{
"type": "image_url",
"role": role,
"image_url": map[string]any{"url": url},
})
}
if hasEndFrame && !hasFirstFrame {
return nil, false, newKelingCompatError(http.StatusBadRequest, 1201, "end_frame requires first_frame")
}
return out, hasFirstFrame, nil
}
func normalizeKelingElementList(value any) ([]any, *kelingCompatError) {
items, err := kelingCompatObjectList(value, "element_list")
if err != nil {
return nil, err
}
out := make([]any, 0, len(items))
for index, item := range items {
id := item["element_id"]
if strings.TrimSpace(stringFromKelingCompat(id)) == "" {
return nil, newKelingCompatError(http.StatusBadRequest, 1201, fmt.Sprintf("element_list[%d].element_id is required", index))
}
out = append(out, map[string]any{"type": "element", "element": map[string]any{"element_id": id}})
}
return out, nil
}
func normalizeKelingVideoList(value any) ([]any, bool, bool, *kelingCompatError) {
items, err := kelingCompatObjectList(value, "video_list")
if err != nil {
return nil, false, false, err
}
if len(items) > 1 {
return nil, false, false, newKelingCompatError(http.StatusBadRequest, 1201, "video_list supports at most one video")
}
out := make([]any, 0, len(items))
hasBase := false
for index, item := range items {
url := strings.TrimSpace(stringFromKelingCompat(item["video_url"]))
if url == "" {
return nil, false, false, newKelingCompatError(http.StatusBadRequest, 1201, fmt.Sprintf("video_list[%d].video_url is required", index))
}
referType := strings.ToLower(strings.TrimSpace(stringFromKelingCompat(item["refer_type"])))
if referType == "" {
referType = "base"
}
if referType != "base" && referType != "feature" {
return nil, false, false, newKelingCompatError(http.StatusBadRequest, 1201, fmt.Sprintf("video_list[%d].refer_type must be base or feature", index))
}
keepSound := strings.ToLower(strings.TrimSpace(stringFromKelingCompat(item["keep_original_sound"])))
if keepSound != "" && keepSound != "yes" && keepSound != "no" {
return nil, false, false, newKelingCompatError(http.StatusBadRequest, 1201, fmt.Sprintf("video_list[%d].keep_original_sound must be yes or no", index))
}
nested := map[string]any{"url": url, "refer_type": referType}
if keepSound != "" {
nested["keep_original_sound"] = keepSound
}
role := "video_feature"
if referType == "base" {
role = "video_base"
hasBase = true
}
out = append(out, map[string]any{"type": "video_url", "role": role, "video_url": nested})
}
return out, hasBase, len(items) > 0, nil
}
func normalizeKelingMultiPrompts(value any) ([]any, int, *kelingCompatError) {
items, err := kelingCompatObjectList(value, "multi_prompt")
if err != nil {
return nil, 0, err
}
if len(items) > 6 {
return nil, 0, newKelingCompatError(http.StatusBadRequest, 1201, "multi_prompt supports at most six shots")
}
out := make([]any, 0, len(items))
seen := map[int]bool{}
total := 0
for index, item := range items {
shotIndex, ok := kelingCompatInt(item["index"])
if !ok || shotIndex < 1 || shotIndex > 6 || seen[shotIndex] {
return nil, 0, newKelingCompatError(http.StatusBadRequest, 1201, fmt.Sprintf("multi_prompt[%d].index must be a unique integer from 1 to 6", index))
}
seen[shotIndex] = true
prompt := strings.TrimSpace(stringFromKelingCompat(item["prompt"]))
if prompt == "" {
return nil, 0, newKelingCompatError(http.StatusBadRequest, 1201, fmt.Sprintf("multi_prompt[%d].prompt is required", index))
}
duration, ok := kelingCompatInt(item["duration"])
if !ok || duration < 1 {
return nil, 0, newKelingCompatError(http.StatusBadRequest, 1201, fmt.Sprintf("multi_prompt[%d].duration must be an integer of at least 1 second", index))
}
total += duration
out = append(out, map[string]any{
"type": "text",
"role": "shot_prompt",
"shot_index": shotIndex,
"text": prompt,
"duration": duration,
})
}
return out, total, nil
}
func kelingCompatModel(value string) (string, int, bool) {
switch strings.ToLower(strings.TrimSpace(value)) {
case "kling-video-o1", "kling-o1":
return "kling-o1", 10, true
case "kling-v3-omni", "kling-3.0-omni":
return "kling-3.0-omni", 15, true
default:
return "", 0, false
}
}
func kelingCompatObjectList(value any, field string) ([]map[string]any, *kelingCompatError) {
if value == nil {
return nil, nil
}
raw, ok := value.([]any)
if !ok {
return nil, newKelingCompatError(http.StatusBadRequest, 1201, field+" must be an array")
}
out := make([]map[string]any, 0, len(raw))
for index, item := range raw {
object, ok := item.(map[string]any)
if !ok {
return nil, newKelingCompatError(http.StatusBadRequest, 1201, fmt.Sprintf("%s[%d] must be an object", field, index))
}
out = append(out, object)
}
return out, nil
}
func kelingCompatOptionalInt(body map[string]any, key string) (int, bool, *kelingCompatError) {
value, present := body[key]
if !present || value == nil || strings.TrimSpace(stringFromKelingCompat(value)) == "" {
return 0, false, nil
}
parsed, ok := kelingCompatInt(value)
if !ok {
return 0, true, newKelingCompatError(http.StatusBadRequest, 1201, key+" must be an integer")
}
return parsed, true, nil
}
func kelingCompatOptionalBool(body map[string]any, key string) (bool, bool, *kelingCompatError) {
value, present := body[key]
if !present || value == nil {
return false, false, nil
}
parsed, ok := value.(bool)
if !ok {
return false, true, newKelingCompatError(http.StatusBadRequest, 1201, key+" must be a boolean")
}
return parsed, true, nil
}
func kelingCompatWatermarkEnabled(value any) (bool, *kelingCompatError) {
if value == nil {
return false, nil
}
object, ok := value.(map[string]any)
if !ok {
return false, newKelingCompatError(http.StatusBadRequest, 1201, "watermark_info must be an object")
}
enabled, present := object["enabled"]
if !present {
return false, nil
}
result, ok := enabled.(bool)
if !ok {
return false, newKelingCompatError(http.StatusBadRequest, 1201, "watermark_info.enabled must be a boolean")
}
return result, nil
}
func kelingCompatInt(value any) (int, bool) {
switch typed := value.(type) {
case int:
return typed, true
case int64:
return int(typed), true
case float64:
if math.Abs(typed-math.Round(typed)) > 1e-9 {
return 0, false
}
return int(math.Round(typed)), true
case json.Number:
parsed, err := strconv.Atoi(typed.String())
return parsed, err == nil
case string:
parsed, err := strconv.Atoi(strings.TrimSpace(typed))
return parsed, err == nil
default:
return 0, false
}
}
func stringFromKelingCompat(value any) string {
switch typed := value.(type) {
case string:
return typed
case json.Number:
return typed.String()
case float64:
if math.Abs(typed-math.Round(typed)) < 1e-9 {
return strconv.FormatInt(int64(math.Round(typed)), 10)
}
return strconv.FormatFloat(typed, 'f', -1, 64)
case int:
return strconv.Itoa(typed)
case int64:
return strconv.FormatInt(typed, 10)
default:
return ""
}
}
func kelingCompatTaskData(task store.GatewayTask) map[string]any {
data := map[string]any{
"task_id": task.ID,
"task_status": kelingCompatTaskStatus(task.Status),
"task_info": map[string]any{
"external_task_id": strings.TrimSpace(stringFromKelingCompat(task.Request["external_task_id"])),
},
"created_at": task.CreatedAt.UnixMilli(),
"updated_at": task.UpdatedAt.UnixMilli(),
"watermark_info": map[string]any{
"enabled": kelingCompatTaskWatermark(task.Request),
},
}
if message := kelingCompatTaskMessage(task); message != "" {
data["task_status_msg"] = message
}
if kelingCompatTaskStatus(task.Status) == "failed" {
data["task_status_code"] = kelingCompatBusinessCode(task.ErrorCode, kelingCompatTaskMessage(task))
}
if videos := kelingCompatTaskVideos(task.Result); len(videos) > 0 {
data["task_result"] = map[string]any{"videos": videos}
}
if task.FinalChargeAmount > 0 {
data["final_unit_deduction"] = strconv.FormatFloat(task.FinalChargeAmount, 'f', -1, 64)
}
return data
}
func kelingCompatTaskStatus(status string) string {
switch strings.ToLower(strings.TrimSpace(status)) {
case "succeeded", "success", "completed":
return "succeed"
case "failed", "cancelled", "canceled":
return "failed"
case "running", "processing":
return "processing"
default:
return "submitted"
}
}
func kelingCompatTaskVideos(result map[string]any) []any {
raw, _ := result["data"].([]any)
out := make([]any, 0, len(raw))
for _, itemValue := range raw {
item, _ := itemValue.(map[string]any)
if item == nil {
continue
}
url := strings.TrimSpace(stringFromKelingCompat(firstKelingCompatValue(item["url"], item["video_url"])))
if url == "" {
continue
}
video := map[string]any{"url": url}
if id := strings.TrimSpace(stringFromKelingCompat(item["id"])); id != "" {
video["id"] = id
}
if watermarkURL := strings.TrimSpace(stringFromKelingCompat(item["watermark_url"])); watermarkURL != "" {
video["watermark_url"] = watermarkURL
}
if duration := strings.TrimSpace(stringFromKelingCompat(item["duration"])); duration != "" {
video["duration"] = duration
}
out = append(out, video)
}
return out
}
func firstKelingCompatValue(values ...any) any {
for _, value := range values {
if strings.TrimSpace(stringFromKelingCompat(value)) != "" {
return value
}
}
return nil
}
func kelingCompatTaskMessage(task store.GatewayTask) string {
return strings.TrimSpace(firstNonEmpty(task.ErrorMessage, task.Error, task.Message))
}
func kelingCompatTaskWatermark(request map[string]any) bool {
if value, ok := request["watermark"].(bool); ok {
return value
}
if info, ok := request["watermark_info"].(map[string]any); ok {
value, _ := info["enabled"].(bool)
return value
}
return false
}
func kelingCompatCandidatesSupport4K(candidates []store.RuntimeModelCandidate) bool {
for _, candidate := range candidates {
if strings.ToLower(strings.TrimSpace(candidate.Provider)) != "keling" {
continue
}
capability, _ := candidate.Capabilities["omni_video"].(map[string]any)
if capability == nil {
capability, _ = candidate.Capabilities["omni"].(map[string]any)
}
for _, resolution := range kelingCompatStringList(capability["output_resolutions"]) {
switch strings.ToLower(strings.TrimSpace(resolution)) {
case "2160p", "4k":
return true
}
}
}
return false
}
func kelingCompatStringList(value any) []string {
switch typed := value.(type) {
case []string:
return typed
case []any:
result := make([]string, 0, len(typed))
for _, item := range typed {
if text := strings.TrimSpace(stringFromKelingCompat(item)); text != "" {
result = append(result, text)
}
}
return result
default:
return nil
}
}
func kelingCompatGatewayError(err error) *kelingCompatError {
if err == nil {
return newKelingCompatError(http.StatusInternalServerError, 5000, "unknown gateway error")
}
codeText := clients.ErrorCode(err)
businessCode := kelingCompatBusinessCode(codeText, err.Error())
status := http.StatusInternalServerError
switch businessCode {
case 1101:
status = http.StatusPaymentRequired
case 1103:
status = http.StatusForbidden
case 1201:
status = http.StatusBadRequest
case 1203:
status = http.StatusNotFound
case 1302, 1303:
status = http.StatusTooManyRequests
case 5001:
status = http.StatusBadGateway
}
return newKelingCompatError(status, businessCode, err.Error())
}
func kelingCompatBusinessCode(errorCode string, message string) int {
combined := strings.ToLower(strings.TrimSpace(errorCode + " " + message))
containsAny := func(values ...string) bool {
for _, value := range values {
if strings.Contains(combined, value) {
return true
}
}
return false
}
switch {
case containsAny("insufficient_balance", "insufficient balance", "balance_not_enough", "wallet balance", "余额不足", "欠费", "quota exceeded"):
return 1101
case containsAny("permission_denied", "permission denied", "forbidden", "access denied", "scope does not allow"):
return 1103
case containsAny("concurrent", "concurrency"):
return 1303
case containsAny("rate_limit", "rate limit", "too many requests", "rpm", "tpm"):
return 1302
case containsAny("no_model_candidate", "no model candidate", "model_not_found", "unsupported model", "resource not found"):
return 1203
case containsAny("invalid_parameter", "invalid parameter", "bad_request", "parameter_preprocessing", "duration", "aspect_ratio"):
return 1201
case containsAny("upload_", "request_asset_", "network", "timeout", "upstream", "service unavailable", "bad gateway"):
return 5001
default:
return 5000
}
}
func isKelingCompatTask(task store.GatewayTask) bool {
return task.Kind == "videos.generations" && strings.TrimSpace(stringFromKelingCompat(task.Request["_gateway_compatibility"])) == kelingOmniCompatibilityMarker
}
func kelingCompatTaskOwnedBy(task store.GatewayTask, user *auth.User) bool {
if user == nil {
return false
}
taskOwner := strings.TrimSpace(firstNonEmpty(task.GatewayUserID, task.UserID))
requestOwner := strings.TrimSpace(firstNonEmpty(user.GatewayUserID, user.ID))
return taskOwner != "" && requestOwner != "" && taskOwner == requestOwner
}
func newKelingCompatRequestID(r *http.Request) string {
if r != nil {
if value := strings.TrimSpace(firstNonEmpty(r.Header.Get("X-Request-ID"), r.Header.Get("X-Request-Id"))); value != "" {
return value
}
}
random := make([]byte, 16)
if _, err := rand.Read(random); err == nil {
return hex.EncodeToString(random)
}
return strconv.FormatInt(time.Now().UnixNano(), 36)
}
func kelingCompatRequestID(r *http.Request) string {
if r != nil {
if value, ok := r.Context().Value(kelingCompatRequestIDKey{}).(string); ok && strings.TrimSpace(value) != "" {
return strings.TrimSpace(value)
}
}
return newKelingCompatRequestID(r)
}
func writeKelingCompatError(w http.ResponseWriter, requestID string, err *kelingCompatError) {
if err == nil {
err = newKelingCompatError(http.StatusInternalServerError, 5000, "internal error")
}
if err.RequestID != "" {
requestID = err.RequestID
}
if requestID == "" {
requestID = newKelingCompatRequestID(nil)
}
status := err.HTTPStatus
if status == 0 {
status = http.StatusInternalServerError
}
writeJSON(w, status, KelingCompatibleEnvelope{
Code: err.Code,
Message: err.Message,
RequestID: requestID,
})
}