405 lines
12 KiB
Go
405 lines
12 KiB
Go
package service
|
||
|
||
import (
|
||
"encoding/json"
|
||
"errors"
|
||
"strings"
|
||
"time"
|
||
"unicode/utf8"
|
||
|
||
"infinite-canvas/backend/internal/model"
|
||
|
||
"gorm.io/gorm"
|
||
)
|
||
|
||
type AssetsSyncRequest struct {
|
||
Assets []json.RawMessage `json:"assets"`
|
||
}
|
||
|
||
type CanvasProjectsSyncRequest struct {
|
||
Projects []json.RawMessage `json:"projects"`
|
||
}
|
||
|
||
type UserDataSummary struct {
|
||
ID string `json:"id"`
|
||
Kind string `json:"kind,omitempty"`
|
||
Category string `json:"category,omitempty"`
|
||
Status string `json:"status,omitempty"`
|
||
Title string `json:"title"`
|
||
CreatedAt time.Time `json:"createdAt"`
|
||
UpdatedAt time.Time `json:"updatedAt"`
|
||
}
|
||
|
||
type UserDataSnapshot struct {
|
||
Assets []json.RawMessage `json:"assets"`
|
||
Projects []json.RawMessage `json:"projects"`
|
||
}
|
||
|
||
func (s *Service) UserDataSnapshot(userID string) (UserDataSnapshot, error) {
|
||
assets, err := s.UserAssets(userID)
|
||
if err != nil {
|
||
return UserDataSnapshot{}, err
|
||
}
|
||
projects, err := s.UserCanvasProjects(userID)
|
||
if err != nil {
|
||
return UserDataSnapshot{}, err
|
||
}
|
||
return UserDataSnapshot{Assets: assets, Projects: projects}, nil
|
||
}
|
||
|
||
func (s *Service) UserAssetSummaries(userID string) ([]UserDataSummary, error) {
|
||
assets, err := s.repo.AssetSummaries(userID)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
result := make([]UserDataSummary, 0, len(assets))
|
||
for _, asset := range assets {
|
||
result = append(result, UserDataSummary{ID: asset.ID, Kind: asset.Kind, Category: string(asset.Category), Status: string(asset.Status), Title: asset.Title, CreatedAt: asset.CreatedAt, UpdatedAt: asset.UpdatedAt})
|
||
}
|
||
return result, nil
|
||
}
|
||
|
||
func (s *Service) UserAsset(userID string, id string) (json.RawMessage, error) {
|
||
asset, err := s.repo.AssetForUser(userID, id)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
return json.RawMessage(asset.PayloadJSON), nil
|
||
}
|
||
|
||
func (s *Service) UpsertUserAsset(userID string, raw json.RawMessage) (UserDataSummary, error) {
|
||
asset, err := assetFromJSON(userID, raw)
|
||
if err != nil {
|
||
return UserDataSummary{}, err
|
||
}
|
||
policy, err := s.RuntimePolicy()
|
||
if err != nil {
|
||
return UserDataSummary{}, err
|
||
}
|
||
s.storageMu.Lock()
|
||
defer s.storageMu.Unlock()
|
||
existing, existingErr := s.repo.AssetForUser(userID, asset.ID)
|
||
if existingErr != nil && !errors.Is(existingErr, gorm.ErrRecordNotFound) {
|
||
return UserDataSummary{}, existingErr
|
||
}
|
||
if existing != nil && existing.PayloadJSON != asset.PayloadJSON {
|
||
if err := s.validateAssetCanvasReferences(userID, asset); err != nil {
|
||
return UserDataSummary{}, err
|
||
}
|
||
}
|
||
existingBytes := int64(0)
|
||
if existing != nil {
|
||
existingBytes = int64(len([]byte(existing.PayloadJSON)))
|
||
}
|
||
usage, err := s.repo.UserStorageUsage(userID)
|
||
if err != nil {
|
||
return UserDataSummary{}, err
|
||
}
|
||
if err := validateStructuredStorageQuotaWithPolicy(usage, "asset", errors.Is(existingErr, gorm.ErrRecordNotFound), int64(len(raw))-existingBytes, policy.Resource); err != nil {
|
||
return UserDataSummary{}, err
|
||
}
|
||
if err := s.repo.UpsertAsset(&asset); err != nil {
|
||
return UserDataSummary{}, err
|
||
}
|
||
if existingErr != nil {
|
||
s.recordActivity(userID, "asset", 1)
|
||
}
|
||
return UserDataSummary{ID: asset.ID, Kind: asset.Kind, Category: string(asset.Category), Status: string(asset.Status), Title: asset.Title, CreatedAt: asset.CreatedAt, UpdatedAt: asset.UpdatedAt}, nil
|
||
}
|
||
|
||
func (s *Service) DeleteUserAsset(userID string, id string) error {
|
||
s.storageMu.Lock()
|
||
defer s.storageMu.Unlock()
|
||
return s.deleteUserAssetWithResources(userID, id)
|
||
}
|
||
|
||
func (s *Service) UserAssets(userID string) ([]json.RawMessage, error) {
|
||
assets, err := s.repo.Assets(userID)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
result := make([]json.RawMessage, 0, len(assets))
|
||
for _, asset := range assets {
|
||
if strings.TrimSpace(asset.PayloadJSON) != "" {
|
||
result = append(result, json.RawMessage(asset.PayloadJSON))
|
||
}
|
||
}
|
||
return result, nil
|
||
}
|
||
|
||
func (s *Service) ReplaceUserAssets(userID string, req AssetsSyncRequest) ([]json.RawMessage, error) {
|
||
assets := make([]model.Asset, 0, len(req.Assets))
|
||
var totalBytes int64
|
||
for _, raw := range req.Assets {
|
||
item, err := assetFromJSON(userID, raw)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
assets = append(assets, item)
|
||
totalBytes += int64(len(raw))
|
||
}
|
||
policy, err := s.RuntimePolicy()
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
s.storageMu.Lock()
|
||
defer s.storageMu.Unlock()
|
||
if err := s.validateAssetReplacementCanvasReferences(userID, assets); err != nil {
|
||
return nil, err
|
||
}
|
||
usage, err := s.repo.UserStorageUsage(userID)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
if err := validateStructuredReplacementQuotaWithPolicy(usage, "asset", len(assets), totalBytes, policy.Resource); err != nil {
|
||
return nil, err
|
||
}
|
||
if err := s.repo.ReplaceAssets(userID, assets); err != nil {
|
||
return nil, err
|
||
}
|
||
if len(assets) > 0 {
|
||
s.recordActivity(userID, "asset", len(assets))
|
||
}
|
||
return s.UserAssets(userID)
|
||
}
|
||
|
||
func (s *Service) UserCanvasProjects(userID string) ([]json.RawMessage, error) {
|
||
projects, err := s.repo.CanvasProjects(userID)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
result := make([]json.RawMessage, 0, len(projects))
|
||
for _, project := range projects {
|
||
if strings.TrimSpace(project.PayloadJSON) != "" {
|
||
result = append(result, json.RawMessage(project.PayloadJSON))
|
||
}
|
||
}
|
||
return result, nil
|
||
}
|
||
|
||
func (s *Service) UserCanvasProjectSummaries(userID string) ([]UserDataSummary, error) {
|
||
projects, err := s.repo.CanvasProjectSummaries(userID)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
result := make([]UserDataSummary, 0, len(projects))
|
||
for _, project := range projects {
|
||
result = append(result, UserDataSummary{ID: project.ID, Title: project.Title, CreatedAt: project.CreatedAt, UpdatedAt: project.UpdatedAt})
|
||
}
|
||
return result, nil
|
||
}
|
||
|
||
func (s *Service) UserCanvasProject(userID string, id string) (json.RawMessage, error) {
|
||
project, err := s.repo.CanvasProjectForUser(userID, id)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
return json.RawMessage(project.PayloadJSON), nil
|
||
}
|
||
|
||
func (s *Service) UpsertUserCanvasProject(userID string, raw json.RawMessage) (UserDataSummary, error) {
|
||
project, err := canvasProjectFromJSON(userID, raw)
|
||
if err != nil {
|
||
return UserDataSummary{}, err
|
||
}
|
||
policy, err := s.RuntimePolicy()
|
||
if err != nil {
|
||
return UserDataSummary{}, err
|
||
}
|
||
s.storageMu.Lock()
|
||
defer s.storageMu.Unlock()
|
||
if err := s.validateCanvasMediaAssets(userID, raw); err != nil {
|
||
return UserDataSummary{}, err
|
||
}
|
||
existing, existingErr := s.repo.CanvasProjectForUser(userID, project.ID)
|
||
if existingErr != nil && !errors.Is(existingErr, gorm.ErrRecordNotFound) {
|
||
return UserDataSummary{}, existingErr
|
||
}
|
||
existingBytes := int64(0)
|
||
if existing != nil {
|
||
existingBytes = int64(len([]byte(existing.PayloadJSON)))
|
||
}
|
||
usage, err := s.repo.UserStorageUsage(userID)
|
||
if err != nil {
|
||
return UserDataSummary{}, err
|
||
}
|
||
if err := validateStructuredStorageQuotaWithPolicy(usage, "canvas", errors.Is(existingErr, gorm.ErrRecordNotFound), int64(len(raw))-existingBytes, policy.Resource); err != nil {
|
||
return UserDataSummary{}, err
|
||
}
|
||
if err := s.repo.UpsertCanvasProject(&project); err != nil {
|
||
return UserDataSummary{}, err
|
||
}
|
||
if existingErr != nil || existing.PayloadJSON != project.PayloadJSON || existing.Title != project.Title {
|
||
s.recordActivity(userID, "canvas", 1)
|
||
}
|
||
return UserDataSummary{ID: project.ID, Title: project.Title, CreatedAt: project.CreatedAt, UpdatedAt: project.UpdatedAt}, nil
|
||
}
|
||
|
||
func (s *Service) DeleteUserCanvasProject(userID string, id string) error {
|
||
return s.repo.DeleteCanvasProject(userID, id)
|
||
}
|
||
|
||
func (s *Service) ReplaceUserCanvasProjects(userID string, req CanvasProjectsSyncRequest) ([]json.RawMessage, error) {
|
||
projects := make([]model.CanvasProject, 0, len(req.Projects))
|
||
var totalBytes int64
|
||
for _, raw := range req.Projects {
|
||
item, err := canvasProjectFromJSON(userID, raw)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
projects = append(projects, item)
|
||
totalBytes += int64(len(raw))
|
||
}
|
||
policy, err := s.RuntimePolicy()
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
s.storageMu.Lock()
|
||
defer s.storageMu.Unlock()
|
||
for _, raw := range req.Projects {
|
||
if err := s.validateCanvasMediaAssets(userID, raw); err != nil {
|
||
return nil, err
|
||
}
|
||
}
|
||
usage, err := s.repo.UserStorageUsage(userID)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
if err := validateStructuredReplacementQuotaWithPolicy(usage, "canvas", len(projects), totalBytes, policy.Resource); err != nil {
|
||
return nil, err
|
||
}
|
||
if err := s.repo.ReplaceCanvasProjects(userID, projects); err != nil {
|
||
return nil, err
|
||
}
|
||
if len(projects) > 0 {
|
||
s.recordActivity(userID, "canvas", 1)
|
||
}
|
||
return s.UserCanvasProjects(userID)
|
||
}
|
||
|
||
func assetFromJSON(userID string, raw json.RawMessage) (model.Asset, error) {
|
||
if err := validateSyncedPayload(raw, "素材"); err != nil {
|
||
return model.Asset{}, err
|
||
}
|
||
var payload struct {
|
||
ID string `json:"id"`
|
||
Kind string `json:"kind"`
|
||
Category string `json:"category"`
|
||
Status string `json:"status"`
|
||
PrimaryVersionID string `json:"primaryVersionId"`
|
||
Title string `json:"title"`
|
||
CreatedAt string `json:"createdAt"`
|
||
UpdatedAt string `json:"updatedAt"`
|
||
}
|
||
if err := json.Unmarshal(raw, &payload); err != nil {
|
||
return model.Asset{}, BadAuthRequest("素材数据格式错误")
|
||
}
|
||
now := time.Now()
|
||
createdAt := parseClientTime(payload.CreatedAt, now)
|
||
updatedAt := parseClientTime(payload.UpdatedAt, createdAt)
|
||
id := strings.TrimSpace(payload.ID)
|
||
if id == "" {
|
||
id = newID()
|
||
}
|
||
if utf8.RuneCountInString(id) > model.AssetIDMaxLength {
|
||
return model.Asset{}, BadAuthRequest("素材 ID 不能超过 80 个字符")
|
||
}
|
||
primaryVersionID := strings.TrimSpace(payload.PrimaryVersionID)
|
||
if utf8.RuneCountInString(primaryVersionID) > 36 {
|
||
return model.Asset{}, BadAuthRequest("素材主版本 ID 不能超过 36 个字符")
|
||
}
|
||
category := model.NormalizeAssetCategory(model.AssetCategory(payload.Category), payload.Kind)
|
||
status := model.AssetVersionStatus(strings.TrimSpace(payload.Status))
|
||
if status == "" {
|
||
status = model.AssetVersionStatusConfirmed
|
||
}
|
||
return model.Asset{
|
||
ID: id,
|
||
UserID: userID,
|
||
Kind: strings.TrimSpace(payload.Kind),
|
||
Category: category,
|
||
Status: status,
|
||
PrimaryVersionID: primaryVersionID,
|
||
Title: strings.TrimSpace(payload.Title),
|
||
PayloadJSON: string(raw),
|
||
CreatedAt: createdAt,
|
||
UpdatedAt: updatedAt,
|
||
}, nil
|
||
}
|
||
|
||
func canvasProjectFromJSON(userID string, raw json.RawMessage) (model.CanvasProject, error) {
|
||
if err := validateSyncedPayload(raw, "画布"); err != nil {
|
||
return model.CanvasProject{}, err
|
||
}
|
||
var payload struct {
|
||
ID string `json:"id"`
|
||
Title string `json:"title"`
|
||
ProjectID string `json:"projectId"`
|
||
CreatedAt string `json:"createdAt"`
|
||
UpdatedAt string `json:"updatedAt"`
|
||
}
|
||
if err := json.Unmarshal(raw, &payload); err != nil {
|
||
return model.CanvasProject{}, BadAuthRequest("画布数据格式错误")
|
||
}
|
||
now := time.Now()
|
||
createdAt := parseClientTime(payload.CreatedAt, now)
|
||
updatedAt := parseClientTime(payload.UpdatedAt, createdAt)
|
||
id := strings.TrimSpace(payload.ID)
|
||
if id == "" {
|
||
id = newID()
|
||
}
|
||
return model.CanvasProject{
|
||
ID: id,
|
||
UserID: userID,
|
||
ProjectID: strings.TrimSpace(payload.ProjectID),
|
||
Title: strings.TrimSpace(payload.Title),
|
||
PayloadJSON: string(raw),
|
||
CreatedAt: createdAt,
|
||
UpdatedAt: updatedAt,
|
||
}, nil
|
||
}
|
||
|
||
func validateSyncedPayload(raw json.RawMessage, label string) error {
|
||
if len(raw) > 4<<20 {
|
||
return BadAuthRequest(label + "数据超过 4MB，请先把媒体文件保存到资源存储")
|
||
}
|
||
var payload interface{}
|
||
if err := json.Unmarshal(raw, &payload); err == nil && containsInlineMediaDataURL(payload) {
|
||
return BadAuthRequest(label + "数据包含内嵌媒体，请先上传到资源存储")
|
||
}
|
||
return nil
|
||
}
|
||
|
||
// 同步数据只禁止作为字段值存在的媒体 Data URL；提示词和上游错误文案可能合法提到相同字符串。
|
||
func containsInlineMediaDataURL(value interface{}) bool {
|
||
switch item := value.(type) {
|
||
case string:
|
||
text := strings.ToLower(strings.TrimSpace(item))
|
||
return strings.HasPrefix(text, "data:image/") || strings.HasPrefix(text, "data:video/") || strings.HasPrefix(text, "data:audio/")
|
||
case []interface{}:
|
||
for _, child := range item {
|
||
if containsInlineMediaDataURL(child) {
|
||
return true
|
||
}
|
||
}
|
||
case map[string]interface{}:
|
||
for _, child := range item {
|
||
if containsInlineMediaDataURL(child) {
|
||
return true
|
||
}
|
||
}
|
||
}
|
||
return false
|
||
}
|
||
|
||
func parseClientTime(value string, fallback time.Time) time.Time {
|
||
value = strings.TrimSpace(value)
|
||
if value == "" {
|
||
return fallback
|
||
}
|
||
if parsed, err := time.Parse(time.RFC3339Nano, value); err == nil {
|
||
return parsed
|
||
}
|
||
return fallback
|
||
}
|