2848ff0987
Sync telesrv c779c48 (feat(branding): unify visible product naming). Skipped private www files and preserved public README files; mapped orange appearance seed names to public default names.
283 lines
7.1 KiB
Go
283 lines
7.1 KiB
Go
package files
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import (
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"context"
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"crypto/sha256"
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"encoding/hex"
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"fmt"
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"hash"
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"telesrv/internal/branding"
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"telesrv/internal/domain"
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"telesrv/internal/seed/appearance"
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)
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// AppearanceSeedStats reports default appearance resources imported into media storage.
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type AppearanceSeedStats struct {
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Wallpapers int
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Documents int
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Blobs int
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Skipped bool
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}
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// SeedAppearance imports the default wallpaper document catalog into telesrv media storage.
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func (s *Service) SeedAppearance(ctx context.Context) (AppearanceSeedStats, error) {
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var stats AppearanceSeedStats
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catalog := appearance.Default()
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if len(catalog.Wallpapers) == 0 && len(catalog.ChatThemes) == 0 {
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stats.Skipped = true
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return stats, nil
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}
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stateHash, err := s.seedAppearanceStateHash()
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if err != nil {
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return stats, err
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}
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ready, err := s.appearanceSeedReady(ctx, catalog)
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if err != nil {
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return stats, err
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}
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matched, err := s.seedStateMatches(ctx, seedAppearanceStateKey, stateHash)
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if err != nil {
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return stats, err
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}
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if matched && ready {
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stats.Wallpapers = len(catalog.Wallpapers)
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stats.Skipped = true
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return stats, nil
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}
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seen := make(map[int64]bool)
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seedDoc := func(in appearance.Document, label string) error {
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if in.ID == 0 || seen[in.ID] {
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return nil
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}
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seen[in.ID] = true
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doc, blobs, err := s.seedAppearanceDocument(ctx, in)
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if err != nil {
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return fmt.Errorf("seed %s %d: %w", label, in.ID, err)
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}
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if doc.ID != 0 {
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stats.Documents++
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}
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stats.Blobs += blobs
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return nil
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}
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for _, wallpaper := range catalog.Wallpapers {
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if err := seedDoc(wallpaper.Document, "wallpaper"); err != nil {
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return stats, err
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}
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stats.Wallpapers++
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}
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// 聊天主题的主题背景墙纸文档也要进媒体库,否则客户端取主题背景会 404。
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for _, ct := range catalog.ChatThemes {
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for _, setting := range ct.Settings {
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if err := seedDoc(setting.Wallpaper.Document, "chat theme wallpaper"); err != nil {
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return stats, err
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}
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}
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}
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if err := s.putSeedState(ctx, seedAppearanceStateKey, stateHash); err != nil {
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return stats, err
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}
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return stats, nil
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}
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func (s *Service) seedAppearanceStateHash() (string, error) {
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raw, err := appearance.FS.ReadFile("default_appearance_seed.json")
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if err != nil {
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return "", err
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}
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return seedStateHash(func(h hash.Hash) error {
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writeSeedStateHeader(h, seedAppearanceStateVersion, s.dc)
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_, _ = h.Write(raw)
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return nil
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})
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}
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func (s *Service) appearanceSeedReady(ctx context.Context, catalog appearance.Catalog) (bool, error) {
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docs := make(map[int64]appearance.Document)
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add := func(doc appearance.Document) {
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if doc.ID != 0 {
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docs[doc.ID] = doc
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}
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}
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for _, wallpaper := range catalog.Wallpapers {
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add(wallpaper.Document)
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}
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for _, ct := range catalog.ChatThemes {
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for _, setting := range ct.Settings {
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add(setting.Wallpaper.Document)
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}
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}
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if len(docs) == 0 {
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return true, nil
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}
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ids := make([]int64, 0, len(docs))
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locationKeys := make([]string, 0, len(docs)*2)
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for id, doc := range docs {
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ids = append(ids, id)
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if doc.Path != "" {
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locationKeys = append(locationKeys, fmt.Sprintf("doc:%d", id))
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}
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for _, thumb := range doc.Thumbs {
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if thumb.Path != "" && thumb.Type != "" {
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locationKeys = append(locationKeys, fmt.Sprintf("doc:%d:%s", id, thumb.Type))
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}
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}
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}
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stored, err := s.media.GetDocuments(ctx, ids)
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if err != nil {
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return false, err
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}
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if len(stored) < len(docs) {
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return false, nil
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}
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for _, doc := range stored {
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want, ok := docs[doc.ID]
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if !ok {
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continue
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}
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if doc.DCID != s.dc || doc.MimeType != want.MimeType || doc.Size != want.Size {
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return false, nil
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}
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delete(docs, doc.ID)
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}
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if len(docs) > 0 {
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return false, nil
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}
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if len(locationKeys) == 0 {
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return true, nil
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}
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blobs, err := s.media.GetFileBlobs(ctx, locationKeys)
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if err != nil {
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return false, err
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}
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for _, key := range locationKeys {
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if _, ok := blobs[key]; !ok {
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return false, nil
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}
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}
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return true, nil
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}
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func (s *Service) seedAppearanceDocument(ctx context.Context, in appearance.Document) (domain.Document, int, error) {
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if in.ID == 0 {
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return domain.Document{}, 0, nil
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}
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doc := domain.Document{
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ID: in.ID,
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AccessHash: in.AccessHash,
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Date: in.Date,
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MimeType: in.MimeType,
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Size: in.Size,
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DCID: s.dc,
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Attributes: appearanceDocumentAttributes(in.Attributes),
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Thumbs: appearanceDocumentThumbs(in.Thumbs),
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}
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blobs := 0
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if in.Path != "" {
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data, sum, err := readAppearanceSeedBlob(in.Path, in.SHA256)
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if err != nil {
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return domain.Document{}, blobs, err
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}
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objectKey, err := s.blobs.Put(ctx, data)
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if err != nil {
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return domain.Document{}, blobs, err
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}
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if err := s.media.PutFileBlob(ctx, domain.FileBlob{
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LocationKey: fmt.Sprintf("doc:%d", in.ID),
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Backend: domain.MediaBackend(s.blobs.Name()),
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ObjectKey: objectKey,
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Size: int64(len(data)),
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SHA256: sum,
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MimeType: in.MimeType,
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}); err != nil {
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return domain.Document{}, blobs, err
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}
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s.prewarmSmallBlob(objectKey, data)
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blobs++
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}
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for _, thumb := range in.Thumbs {
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if thumb.Path == "" || thumb.Type == "" {
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continue
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}
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data, sum, err := readAppearanceSeedBlob(thumb.Path, thumb.SHA256)
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if err != nil {
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return domain.Document{}, blobs, err
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}
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objectKey, err := s.blobs.Put(ctx, data)
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if err != nil {
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return domain.Document{}, blobs, err
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}
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if err := s.media.PutFileBlob(ctx, domain.FileBlob{
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LocationKey: fmt.Sprintf("doc:%d:%s", in.ID, thumb.Type),
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Backend: domain.MediaBackend(s.blobs.Name()),
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ObjectKey: objectKey,
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Size: int64(len(data)),
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SHA256: sum,
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MimeType: seedThumbMimeType(data),
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}); err != nil {
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return domain.Document{}, blobs, err
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}
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s.prewarmSmallBlob(objectKey, data)
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blobs++
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}
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if err := s.media.PutDocument(ctx, doc); err != nil {
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return domain.Document{}, blobs, err
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}
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return doc, blobs, nil
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}
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func readAppearanceSeedBlob(path, wantSHA string) ([]byte, []byte, error) {
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data, err := appearance.FS.ReadFile(path)
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if err != nil {
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return nil, nil, err
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}
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sum := sha256.Sum256(data)
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got := hex.EncodeToString(sum[:])
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if wantSHA != "" && got != wantSHA {
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return nil, nil, fmt.Errorf("%s sha256 = %s, want %s", path, got, wantSHA)
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}
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return data, append([]byte(nil), sum[:]...), nil
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}
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func appearanceDocumentAttributes(in []appearance.DocumentAttribute) []domain.DocumentAttribute {
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out := make([]domain.DocumentAttribute, 0, len(in))
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for _, attr := range in {
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switch attr.Kind {
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case "image_size":
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out = append(out, domain.DocumentAttribute{
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Kind: domain.DocAttrImageSize,
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W: attr.W,
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H: attr.H,
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})
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case "filename":
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if attr.FileName != "" {
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out = append(out, domain.DocumentAttribute{
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Kind: domain.DocAttrFilename,
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FileName: branding.UserVisibleText(attr.FileName, ""),
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})
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}
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}
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}
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return out
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}
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func appearanceDocumentThumbs(in []appearance.PhotoSize) []domain.PhotoSize {
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out := make([]domain.PhotoSize, 0, len(in))
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for _, thumb := range in {
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if thumb.Type == "" {
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continue
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}
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switch thumb.Kind {
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case "size":
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out = append(out, domain.PhotoSize{
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Kind: domain.PhotoSizeKindDefault,
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Type: thumb.Type,
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W: thumb.W,
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H: thumb.H,
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Size: thumb.Size,
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})
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}
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}
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return out
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}
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