feat(*): 创作配置 - 支持 Midjourney、多图保存与自定义公告
Co-authored-by: ddcat666 <26564566+ddcat666@users.noreply.github.com>
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DAO-QINandddcat666 authored and ddcat666 committed
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package app
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import (
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"net/url"
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"strings"
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"time"
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"infinite-canvas/backend/internal/assets"
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"infinite-canvas/backend/internal/model"
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)
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type UpdateAnnouncement struct {
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Enabled bool `json:"enabled"`
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CurrentVersion string `json:"currentVersion"`
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Releases []UpdateRelease `json:"releases"`
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}
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type UpdateRelease struct {
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ID string `json:"id"`
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Version string `json:"version"`
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Title string `json:"title"`
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Date string `json:"date"`
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Blocks []UpdateBlock `json:"blocks"`
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}
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type UpdateBlock struct {
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ID string `json:"id"`
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Type string `json:"type"`
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Text string `json:"text"`
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ResourceID string `json:"resourceId"`
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Caption string `json:"caption"`
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Layout string `json:"layout"`
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MediaURL string `json:"mediaUrl,omitempty"`
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}
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func normalizeUpdateAnnouncement(value UpdateAnnouncement) (UpdateAnnouncement, error) {
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value.CurrentVersion = normalizeAppearanceSingleLine(value.CurrentVersion)
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if err := validateAppearanceCopy(value.CurrentVersion, "公告当前版本", 40, value.Enabled); err != nil {
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return value, err
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}
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if len(value.Releases) > 30 {
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return value, BadAuthRequest("更新公告最多 30 个版本")
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}
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if value.Enabled && len(value.Releases) == 0 {
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return value, BadAuthRequest("开启自定义更新公告前请添加版本和内容")
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}
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seen := map[string]bool{}
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versions := map[string]bool{}
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total := 0
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currentFound := false
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for i := range value.Releases {
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r := &value.Releases[i]
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r.ID, r.Version = strings.TrimSpace(r.ID), normalizeAppearanceSingleLine(r.Version)
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r.Title, r.Date = normalizeAppearanceSingleLine(r.Title), strings.TrimSpace(r.Date)
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if r.ID == "" || len(r.ID) > 80 || seen[r.ID] {
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return value, BadAuthRequest("公告版本标识无效或重复")
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}
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seen[r.ID] = true
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if err := validateAppearanceCopy(r.Version, "公告版本号", 40, true); err != nil {
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return value, err
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}
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if versions[r.Version] {
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return value, BadAuthRequest("公告版本号不能重复")
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}
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versions[r.Version] = true
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if r.Version == value.CurrentVersion {
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currentFound = true
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}
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if err := validateAppearanceCopy(r.Title, "公告标题", 100, false); err != nil {
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return value, err
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}
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if r.Date != "" {
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if _, err := time.Parse("2006-01-02", r.Date); err != nil {
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return value, BadAuthRequest("公告日期须为 YYYY-MM-DD")
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}
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}
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if len(r.Blocks) == 0 || len(r.Blocks) > 50 {
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return value, BadAuthRequest("每个公告版本须包含 1 至 50 个内容块")
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}
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for j := range r.Blocks {
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b := &r.Blocks[j]
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b.ID, b.ResourceID = strings.TrimSpace(b.ID), strings.TrimSpace(b.ResourceID)
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b.Text, b.Caption, b.MediaURL = normalizeAppearanceCopy(b.Text), normalizeAppearanceSingleLine(b.Caption), ""
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if b.ID == "" || len(b.ID) > 80 || seen[b.ID] {
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return value, BadAuthRequest("公告内容块标识无效或重复")
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}
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seen[b.ID] = true
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if b.Layout == "" {
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b.Layout = "full"
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}
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if b.Layout != "full" && b.Layout != "half" {
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return value, BadAuthRequest("公告布局须为整行或半行")
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}
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if err := validateAppearanceCopy(b.Text, "公告正文", 10000, b.Type == "text"); err != nil {
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return value, err
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}
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if err := validateAppearanceCopy(b.Caption, "媒体说明", 200, false); err != nil {
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return value, err
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}
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switch b.Type {
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case "text":
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b.ResourceID = ""
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case "image", "video":
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if b.ResourceID == "" || len(b.ResourceID) > 80 {
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return value, BadAuthRequest("请上传公告图片或视频")
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}
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b.Text = ""
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default:
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return value, BadAuthRequest("公告内容块类型无效")
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}
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total += len(b.Text) + len(b.Caption)
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}
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}
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if total > 200000 {
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return value, BadAuthRequest("公告内容总大小不能超过 200KB")
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}
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if value.Enabled && !currentFound {
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return value, BadAuthRequest("公告当前版本必须对应已添加的版本")
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}
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return value, nil
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}
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func updateResourceSlot(kind string) string {
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if kind == "video" {
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return AppearanceAssetUpdateVideo
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}
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return AppearanceAssetUpdateImage
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}
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func updateReferenced(value UpdateAnnouncement, id string) bool {
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for _, release := range value.Releases {
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for _, block := range release.Blocks {
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if block.ResourceID == id && (block.Type == "image" || block.Type == "video") {
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return true
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}
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}
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}
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return false
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}
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func (s *Service) validateUpdateAnnouncementResources(actor *model.User, value, before UpdateAnnouncement) error {
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for _, release := range value.Releases {
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for _, block := range release.Blocks {
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if block.ResourceID == "" {
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continue
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}
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current := ""
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if updateReferenced(before, block.ResourceID) {
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current = block.ResourceID
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}
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slot := updateResourceSlot(block.Type)
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if err := s.validateAppearanceResource(actor, slot, block.ResourceID, current); err != nil {
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return err
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}
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resource, err := s.repo.Resource(block.ResourceID)
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if err != nil {
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return err
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}
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maxBytes, _ := AppearanceAssetMaxBytes(slot)
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if resource.Size <= 0 || resource.Size > maxBytes {
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return BadAuthRequest("公告媒体大小超过允许范围")
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}
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}
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}
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return nil
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}
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func publicUpdateAnnouncement(value UpdateAnnouncement, revision string) UpdateAnnouncement {
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if !value.Enabled {
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return UpdateAnnouncement{Releases: []UpdateRelease{}}
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}
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result := value
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result.Releases = append([]UpdateRelease(nil), value.Releases...)
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for i := range result.Releases {
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result.Releases[i].Blocks = append([]UpdateBlock(nil), value.Releases[i].Blocks...)
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for j := range result.Releases[i].Blocks {
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b := &result.Releases[i].Blocks[j]
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if b.ResourceID != "" {
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b.MediaURL = "/api/public/appearance/updates/" + url.PathEscape(b.ResourceID) + "?v=" + url.QueryEscape(revision)
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}
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}
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}
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return result
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}
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// Public delivery is limited to the currently enabled announcement references.
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// Draft previews require an administrator and never expose unrelated resources.
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func (s *Service) PrepareUpdateAnnouncementDelivery(actor *model.User, id string, options ResourceAccessOptions, rangeHeader string) (*ResourceDelivery, error) {
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if actor != nil {
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if err := s.RequireAdmin(actor); err != nil {
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return nil, err
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}
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}
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_, value, err := s.readAppearance()
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if err != nil {
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return nil, err
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}
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referenced := updateReferenced(value.Updates, id)
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if actor == nil && (!value.Updates.Enabled || !referenced) {
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return nil, NotFound("公告媒体未发布")
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}
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resource, err := s.repo.Resource(id)
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if err != nil {
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return nil, NotFound("公告媒体不存在")
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}
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if actor != nil && resource.UserID != actor.ID && !referenced {
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return nil, Forbidden("不能预览其他管理员的未发布媒体")
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}
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if resource.Kind != "image" && resource.Kind != "video" {
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return nil, BadAuthRequest("公告仅支持图片和视频")
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}
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if err := validateAppearanceResourceType(updateResourceSlot(resource.Kind), resource); err != nil {
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return nil, err
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}
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if options.Purpose == "" {
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options.Purpose = assets.PurposeDisplay
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}
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return s.prepareResourceDelivery(resource.UserID, resource, options, rangeHeader)
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}
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