[bugfix] Missing emoji urls (#3707)

* filter out emoji that are uncached when converting to frontend models

* some very small fixups

* remove TODO notice

internal/cleaner/emoji.go

@@ -104,13 +104,14 @@ func (e *Emoji) UncacheRemote(ctx context.Context, olderThan time.Time) (int, er
 			return total, gtserror.Newf("error getting remote emoji: %w", err)
 		}
 
-		// If no emojis / same group is returned, we reached the end.
+		// If no emojis / same group is
+		// returned, we reached the end.
 		if len(emojis) == 0 ||
 			olderThan.Equal(emojis[len(emojis)-1].CreatedAt) {
 			break
 		}
 
-		// Use last created-at as the next 'olderThan' value.
+		// Use last createdAt as next 'olderThan' value.
 		olderThan = emojis[len(emojis)-1].CreatedAt
 
 		for _, emoji := range emojis {

internal/gtsmodel/account.go

@@ -31,7 +31,8 @@
 	"github.com/superseriousbusiness/gotosocial/internal/log"
 )
 
-// Account represents either a local or a remote fediverse account, gotosocial or otherwise (mastodon, pleroma, etc).
+// Account represents either a local or a remote fediverse
+// account, gotosocial or otherwise (mastodon, pleroma, etc).
 type Account struct {
 	ID                      string           `bun:"type:CHAR(26),pk,nullzero,notnull,unique"`                    // id of this item in the database
 	CreatedAt               time.Time        `bun:"type:timestamptz,nullzero,notnull,default:current_timestamp"` // when was item created.
@@ -83,9 +84,19 @@ type Account struct {
 	Stats                   *AccountStats    `bun:"-"`                                                           // gtsmodel.AccountStats for this account.
 }
 
+// UsernameDomain returns account @username@domain (missing domain if local).
+func (a *Account) UsernameDomain() string {
+	if a.IsLocal() {
+		return "@" + a.Username
+	}
+	return "@" + a.Username + "@" + a.Domain
+}
+
 // IsLocal returns whether account is a local user account.
 func (a *Account) IsLocal() bool {
-	return a.Domain == "" || a.Domain == config.GetHost() || a.Domain == config.GetAccountDomain()
+	return a.Domain == "" ||
+		a.Domain == config.GetHost() ||
+		a.Domain == config.GetAccountDomain()
 }
 
 // IsRemote returns whether account is a remote user account.

internal/gtsmodel/emoji.go

@@ -19,7 +19,8 @@
 
 import "time"
 
-// Emoji represents a custom emoji that's been uploaded through the admin UI or downloaded from a remote instance.
+// Emoji represents a custom emoji that's been uploaded
+// through the admin UI or downloaded from a remote instance.
 type Emoji struct {
 	ID                     string         `bun:"type:CHAR(26),pk,nullzero,notnull,unique"`                    // id of this item in the database
 	CreatedAt              time.Time      `bun:"type:timestamptz,nullzero,notnull,default:current_timestamp"` // when was item created

internal/typeutils/internaltofrontend.go

@@ -2641,28 +2641,36 @@ func (c *Converter) FilterStatusToAPIFilterStatus(ctx context.Context, filterSta
 func (c *Converter) convertEmojisToAPIEmojis(ctx context.Context, emojis []*gtsmodel.Emoji, emojiIDs []string) ([]apimodel.Emoji, error) {
 	var errs gtserror.MultiError
 
-	if len(emojis) == 0 && len(emojiIDs) > 0 {
 	// GTS model attachments were not populated
-
+	if len(emojis) == 0 && len(emojiIDs) > 0 {
 		var err error
 
 		// Fetch GTS models for emoji IDs
 		emojis, err = c.state.DB.GetEmojisByIDs(ctx, emojiIDs)
 		if err != nil {
-			errs.Appendf("error fetching emojis from database: %w", err)
+			return nil, gtserror.Newf("db error fetching emojis: %w", err)
 		}
 	}
 
-	// Preallocate expected frontend slice
+	// Preallocate expected frontend slice of emojis.
 	apiEmojis := make([]apimodel.Emoji, 0, len(emojis))
-
-	// Convert GTS models to frontend models
 	for _, emoji := range emojis {
+
+		// Skip adding emojis that are
+		// uncached, the empty URLs can
+		// cause issues with some clients.
+		if !*emoji.Cached {
+			continue
+		}
+
+		// Convert each to a frontend API model emoji.
 		apiEmoji, err := c.EmojiToAPIEmoji(ctx, emoji)
 		if err != nil {
 			errs.Appendf("error converting emoji %s to api emoji: %w", emoji.ID, err)
 			continue
 		}
+
+		// Append converted emoji to return slice.
 		apiEmojis = append(apiEmojis, apiEmoji)
 	}