[feature] Show + federate emojis in accounts (#837)

* Start adding account emoji

* get emojis serialized + deserialized nicely

* update tests

* set / retrieve emojis on accounts

* show account emojis in web view

* fetch emojis from db based on ids

* fix typo in test

* lint

* fix pg migration

* update tests

* update emoji checking logic

* update comment

* clarify comments + add some spacing

* tidy up loops a lil (thanks kim)

internal/ap/interfaces.go

@@ -41,6 +41,7 @@ type Accountable interface {
 	WithFeatured
 	WithManuallyApprovesFollowers
 	WithEndpoints
+	WithTag
 }
 
 // Statusable represents the minimum activitypub interface for representing a 'status'.

internal/api/client/account/accountupdate_test.go

@@ -200,7 +200,7 @@ func (suite *AccountUpdateTestSuite) TestAccountUpdateCredentialsPATCHHandlerGet
 func (suite *AccountUpdateTestSuite) TestAccountUpdateCredentialsPATCHHandlerTwoFields() {
 	// set up the request
 	// we're updating the note of zork, and setting locked to true
-	newBio := "this is my new bio read it and weep"
+	newBio := "this is my new bio read it and weep :rainbow:"
 	requestBody, w, err := testrig.CreateMultipartFormData(
 		"", "",
 		map[string]string{
@@ -235,9 +235,19 @@ func (suite *AccountUpdateTestSuite) TestAccountUpdateCredentialsPATCHHandlerTwo
 
 	// check the returned api model account
 	// fields should be updated
-	suite.Equal("<p>this is my new bio read it and weep</p>", apimodelAccount.Note)
+	suite.Equal("<p>this is my new bio read it and weep :rainbow:</p>", apimodelAccount.Note)
 	suite.Equal(newBio, apimodelAccount.Source.Note)
 	suite.True(apimodelAccount.Locked)
+	suite.NotEmpty(apimodelAccount.Emojis)
+	suite.Equal(apimodelAccount.Emojis[0].Shortcode, "rainbow")
+
+	// check the account in the database
+	dbZork, err := suite.db.GetAccountByID(context.Background(), apimodelAccount.ID)
+	suite.NoError(err)
+	suite.Equal(newBio, dbZork.NoteRaw)
+	suite.Equal("<p>this is my new bio read it and weep :rainbow:</p>", dbZork.Note)
+	suite.True(*dbZork.Locked)
+	suite.NotEmpty(dbZork.EmojiIDs)
 }
 
 func (suite *AccountUpdateTestSuite) TestAccountUpdateCredentialsPATCHHandlerWithMedia() {

internal/api/s2s/user/inboxpost_test.go

@@ -237,6 +237,8 @@ func (suite *InboxPostTestSuite) TestPostUnblock() {
 func (suite *InboxPostTestSuite) TestPostUpdate() {
 	updatedAccount := *suite.testAccounts["remote_account_1"]
 	updatedAccount.DisplayName = "updated display name!"
+	testEmoji := testrig.NewTestEmojis()["rainbow"]
+	updatedAccount.Emojis = []*gtsmodel.Emoji{testEmoji}
 
 	asAccount, err := suite.tc.AccountToAS(context.Background(), &updatedAccount)
 	suite.NoError(err)
@@ -288,6 +290,15 @@ func (suite *InboxPostTestSuite) TestPostUpdate() {
 	federator := testrig.NewTestFederator(suite.db, tc, suite.storage, suite.mediaManager, fedWorker)
 	emailSender := testrig.NewEmailSender("../../../../web/template/", nil)
 	processor := testrig.NewTestProcessor(suite.db, suite.storage, federator, emailSender, suite.mediaManager, clientWorker, fedWorker)
+	if err := processor.Start(); err != nil {
+		panic(err)
+	}
+	defer func() {
+		if err := processor.Stop(); err != nil {
+			panic(err)
+		}
+	}()
+
 	userModule := user.New(processor).(*user.Module)
 
 	// setup request
@@ -322,11 +333,21 @@ func (suite *InboxPostTestSuite) TestPostUpdate() {
 	suite.Equal(http.StatusOK, result.StatusCode)
 
 	// account should be changed in the database now
-	dbUpdatedAccount, err := suite.db.GetAccountByID(context.Background(), updatedAccount.ID)
+	var dbUpdatedAccount *gtsmodel.Account
-	suite.NoError(err)
 
-	// displayName should be updated
+	if !testrig.WaitFor(func() bool {
-	suite.Equal("updated display name!", dbUpdatedAccount.DisplayName)
+		// displayName should be updated
+		dbUpdatedAccount, _ = suite.db.GetAccountByID(context.Background(), updatedAccount.ID)
+		return dbUpdatedAccount.DisplayName == "updated display name!"
+	}) {
+		suite.FailNow("timed out waiting for account update")
+	}
+
+	// emojis should be updated
+	suite.Contains(dbUpdatedAccount.EmojiIDs, testEmoji.ID)
+
+	// account should be freshly webfingered
+	suite.WithinDuration(time.Now(), dbUpdatedAccount.LastWebfingeredAt, 10*time.Second)
 
 	// everything else should be the same as it was before
 	suite.EqualValues(updatedAccount.Username, dbUpdatedAccount.Username)
@@ -350,7 +371,6 @@ func (suite *InboxPostTestSuite) TestPostUpdate() {
 	suite.EqualValues(updatedAccount.Language, dbUpdatedAccount.Language)
 	suite.EqualValues(updatedAccount.URI, dbUpdatedAccount.URI)
 	suite.EqualValues(updatedAccount.URL, dbUpdatedAccount.URL)
-	suite.EqualValues(updatedAccount.LastWebfingeredAt, dbUpdatedAccount.LastWebfingeredAt)
 	suite.EqualValues(updatedAccount.InboxURI, dbUpdatedAccount.InboxURI)
 	suite.EqualValues(updatedAccount.OutboxURI, dbUpdatedAccount.OutboxURI)
 	suite.EqualValues(updatedAccount.FollowingURI, dbUpdatedAccount.FollowingURI)

internal/cache/account.go

@@ -116,6 +116,8 @@ func copyAccount(account *gtsmodel.Account) *gtsmodel.Account {
 		HeaderMediaAttachment:   nil,
 		HeaderRemoteURL:         account.HeaderRemoteURL,
 		DisplayName:             account.DisplayName,
+		EmojiIDs:                account.EmojiIDs,
+		Emojis:                  nil,
 		Fields:                  account.Fields,
 		Note:                    account.Note,
 		NoteRaw:                 account.NoteRaw,

internal/db/account.go

@@ -42,6 +42,9 @@ type Account interface {
 	// GetAccountByPubkeyID returns one account with the given public key URI (ID), or an error if something goes wrong.
 	GetAccountByPubkeyID(ctx context.Context, id string) (*gtsmodel.Account, Error)
 
+	// PutAccount puts one account in the database.
+	PutAccount(ctx context.Context, account *gtsmodel.Account) (*gtsmodel.Account, Error)
+
 	// UpdateAccount updates one account by ID.
 	UpdateAccount(ctx context.Context, account *gtsmodel.Account) (*gtsmodel.Account, Error)
 

internal/db/bundb/account.go

@@ -45,7 +45,8 @@ func (a *accountDB) newAccountQ(account *gtsmodel.Account) *bun.SelectQuery {
 		NewSelect().
 		Model(account).
 		Relation("AvatarMediaAttachment").
-		Relation("HeaderMediaAttachment")
+		Relation("HeaderMediaAttachment").
+		Relation("Emojis")
 }
 
 func (a *accountDB) GetAccountByID(ctx context.Context, id string) (*gtsmodel.Account, db.Error) {
@@ -138,24 +139,61 @@ func (a *accountDB) getAccount(ctx context.Context, cacheGet func() (*gtsmodel.A
 	return account, nil
 }
 
+func (a *accountDB) PutAccount(ctx context.Context, account *gtsmodel.Account) (*gtsmodel.Account, db.Error) {
+	if err := a.conn.RunInTx(ctx, func(tx bun.Tx) error {
+		// create links between this account and any emojis it uses
+		for _, i := range account.EmojiIDs {
+			if _, err := tx.NewInsert().Model(&gtsmodel.AccountToEmoji{
+				AccountID: account.ID,
+				EmojiID:   i,
+			}).Exec(ctx); err != nil {
+				return err
+			}
+		}
+
+		// insert the account
+		_, err := tx.NewInsert().Model(account).Exec(ctx)
+		return err
+	}); err != nil {
+		return nil, a.conn.ProcessError(err)
+	}
+
+	a.cache.Put(account)
+	return account, nil
+}
+
 func (a *accountDB) UpdateAccount(ctx context.Context, account *gtsmodel.Account) (*gtsmodel.Account, db.Error) {
 	// Update the account's last-updated
 	account.UpdatedAt = time.Now()
 
-	// Update the account model in the DB
+	if err := a.conn.RunInTx(ctx, func(tx bun.Tx) error {
-	_, err := a.conn.
+		// create links between this account and any emojis it uses
-		NewUpdate().
+		// first clear out any old emoji links
-		Model(account).
+		if _, err := tx.NewDelete().
-		WherePK().
+			Model(&[]*gtsmodel.AccountToEmoji{}).
-		Exec(ctx)
+			Where("account_id = ?", account.ID).
-	if err != nil {
+			Exec(ctx); err != nil {
+			return err
+		}
+
+		// now populate new emoji links
+		for _, i := range account.EmojiIDs {
+			if _, err := tx.NewInsert().Model(&gtsmodel.AccountToEmoji{
+				AccountID: account.ID,
+				EmojiID:   i,
+			}).Exec(ctx); err != nil {
+				return err
+			}
+		}
+
+		// update the account
+		_, err := tx.NewUpdate().Model(account).WherePK().Exec(ctx)
+		return err
+	}); err != nil {
 		return nil, a.conn.ProcessError(err)
 	}
 
-	// Place updated account in cache
-	// (this will replace existing, i.e. invalidating)
 	a.cache.Put(account)
-
 	return account, nil
 }
 

internal/db/bundb/account_test.go

@@ -27,7 +27,9 @@ import (
 
 	"github.com/stretchr/testify/suite"
 	"github.com/superseriousbusiness/gotosocial/internal/ap"
+	"github.com/superseriousbusiness/gotosocial/internal/db/bundb"
 	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
+	"github.com/uptrace/bun"
 )
 
 type AccountTestSuite struct {
@@ -71,17 +73,70 @@ func (suite *AccountTestSuite) TestGetAccountByUsernameDomain() {
 }
 
 func (suite *AccountTestSuite) TestUpdateAccount() {
+	ctx := context.Background()
+
 	testAccount := suite.testAccounts["local_account_1"]
 
 	testAccount.DisplayName = "new display name!"
+	testAccount.EmojiIDs = []string{"01GD36ZKWTKY3T1JJ24JR7KY1Q", "01GD36ZV904SHBHNAYV6DX5QEF"}
 
-	_, err := suite.db.UpdateAccount(context.Background(), testAccount)
+	_, err := suite.db.UpdateAccount(ctx, testAccount)
 	suite.NoError(err)
 
-	updated, err := suite.db.GetAccountByID(context.Background(), testAccount.ID)
+	updated, err := suite.db.GetAccountByID(ctx, testAccount.ID)
 	suite.NoError(err)
 	suite.Equal("new display name!", updated.DisplayName)
+	suite.Equal([]string{"01GD36ZKWTKY3T1JJ24JR7KY1Q", "01GD36ZV904SHBHNAYV6DX5QEF"}, updated.EmojiIDs)
 	suite.WithinDuration(time.Now(), updated.UpdatedAt, 5*time.Second)
+
+	// get account without cache + make sure it's really in the db as desired
+	dbService, ok := suite.db.(*bundb.DBService)
+	if !ok {
+		panic("db was not *bundb.DBService")
+	}
+
+	noCache := &gtsmodel.Account{}
+	err = dbService.GetConn().
+		NewSelect().
+		Model(noCache).
+		Where("account.id = ?", bun.Ident(testAccount.ID)).
+		Relation("AvatarMediaAttachment").
+		Relation("HeaderMediaAttachment").
+		Relation("Emojis").
+		Scan(ctx)
+
+	suite.NoError(err)
+	suite.Equal("new display name!", noCache.DisplayName)
+	suite.Equal([]string{"01GD36ZKWTKY3T1JJ24JR7KY1Q", "01GD36ZV904SHBHNAYV6DX5QEF"}, noCache.EmojiIDs)
+	suite.WithinDuration(time.Now(), noCache.UpdatedAt, 5*time.Second)
+	suite.NotNil(noCache.AvatarMediaAttachment)
+	suite.NotNil(noCache.HeaderMediaAttachment)
+
+	// update again to remove emoji associations
+	testAccount.EmojiIDs = []string{}
+
+	_, err = suite.db.UpdateAccount(ctx, testAccount)
+	suite.NoError(err)
+
+	updated, err = suite.db.GetAccountByID(ctx, testAccount.ID)
+	suite.NoError(err)
+	suite.Equal("new display name!", updated.DisplayName)
+	suite.Empty(updated.EmojiIDs)
+	suite.WithinDuration(time.Now(), updated.UpdatedAt, 5*time.Second)
+
+	err = dbService.GetConn().
+		NewSelect().
+		Model(noCache).
+		Where("account.id = ?", bun.Ident(testAccount.ID)).
+		Relation("AvatarMediaAttachment").
+		Relation("HeaderMediaAttachment").
+		Relation("Emojis").
+		Scan(ctx)
+
+	suite.NoError(err)
+	suite.Equal("new display name!", noCache.DisplayName)
+	suite.Empty(noCache.EmojiIDs)
+	suite.WithinDuration(time.Now(), noCache.UpdatedAt, 5*time.Second)
 }
 
 func (suite *AccountTestSuite) TestInsertAccountWithDefaults() {

internal/db/bundb/bundb.go

@@ -67,12 +67,13 @@ const (
 )
 
 var registerTables = []interface{}{
+	&gtsmodel.AccountToEmoji{},
 	&gtsmodel.StatusToEmoji{},
 	&gtsmodel.StatusToTag{},
 }
 
-// bunDBService satisfies the DB interface
+// DBService satisfies the DB interface
-type bunDBService struct {
+type DBService struct {
 	db.Account
 	db.Admin
 	db.Basic
@@ -89,6 +90,12 @@ type bunDBService struct {
 	conn *DBConn
 }
 
+// GetConn returns the underlying bun connection.
+// Should only be used in testing + exceptional circumstance.
+func (dbService *DBService) GetConn() *DBConn {
+	return dbService.conn
+}
+
 func doMigration(ctx context.Context, db *bun.DB) error {
 	migrator := migrate.NewMigrator(db, migrations.Migrations)
 
@@ -177,7 +184,7 @@ func NewBunDBService(ctx context.Context) (db.DB, error) {
 	// Prepare domain block cache
 	blockCache := cache.NewDomainBlockCache()
 
-	ps := &bunDBService{
+	ps := &DBService{
 		Account: accounts,
 		Admin: &adminDB{
 			conn: conn,
@@ -399,7 +406,7 @@ func tweakConnectionValues(sqldb *sql.DB) {
 	CONVERSION FUNCTIONS
 */
 
-func (ps *bunDBService) TagStringsToTags(ctx context.Context, tags []string, originAccountID string) ([]*gtsmodel.Tag, error) {
+func (dbService *DBService) TagStringsToTags(ctx context.Context, tags []string, originAccountID string) ([]*gtsmodel.Tag, error) {
 	protocol := config.GetProtocol()
 	host := config.GetHost()
 
@@ -408,7 +415,7 @@ func (ps *bunDBService) TagStringsToTags(ctx context.Context, tags []string, ori
 		tag := &gtsmodel.Tag{}
 		// we can use selectorinsert here to create the new tag if it doesn't exist already
 		// inserted will be true if this is a new tag we just created
-		if err := ps.conn.NewSelect().Model(tag).Where("LOWER(?) = LOWER(?)", bun.Ident("name"), t).Scan(ctx); err != nil {
+		if err := dbService.conn.NewSelect().Model(tag).Where("LOWER(?) = LOWER(?)", bun.Ident("name"), t).Scan(ctx); err != nil {
 			if err == sql.ErrNoRows {
 				// tag doesn't exist yet so populate it
 				newID, err := id.NewRandomULID()

internal/db/bundb/migrations/20220916122701_emojis_in_accounts.go

@@ -0,0 +1,69 @@
+/*
+   GoToSocial
+   Copyright (C) 2021-2022 GoToSocial Authors admin@gotosocial.org
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Affero General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Affero General Public License for more details.
+
+   You should have received a copy of the GNU Affero General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package migrations
+
+import (
+	"context"
+
+	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
+	"github.com/superseriousbusiness/gotosocial/internal/log"
+	"github.com/uptrace/bun"
+	"github.com/uptrace/bun/dialect"
+)
+
+func init() {
+	up := func(ctx context.Context, db *bun.DB) error {
+		return db.RunInTx(ctx, nil, func(ctx context.Context, tx bun.Tx) error {
+			q := tx.NewAddColumn().Model(&gtsmodel.Account{})
+
+			switch tx.Dialect().Name() {
+			case dialect.PG:
+				q = q.ColumnExpr("? VARCHAR[]", bun.Ident("emojis"))
+			case dialect.SQLite:
+				q = q.ColumnExpr("? VARCHAR", bun.Ident("emojis"))
+			default:
+				log.Panic("db dialect was neither pg nor sqlite")
+			}
+
+			if _, err := q.Exec(ctx); err != nil {
+				return err
+			}
+
+			if _, err := tx.
+				NewCreateTable().
+				Model(&gtsmodel.AccountToEmoji{}).
+				IfNotExists().
+				Exec(ctx); err != nil {
+				return err
+			}
+
+			return nil
+		})
+	}
+
+	down := func(ctx context.Context, db *bun.DB) error {
+		return db.RunInTx(ctx, nil, func(ctx context.Context, tx bun.Tx) error {
+			return nil
+		})
+	}
+
+	if err := Migrations.Register(up, down); err != nil {
+		panic(err)
+	}
+}

internal/federation/dereferencing/account.go

@@ -76,6 +76,11 @@ type GetRemoteAccountParams struct {
 	// quickly fetch a remote account from the database or fail, and don't want to cause
 	// http requests to go flying around.
 	SkipResolve bool
+	// PartialAccount can be used if the GetRemoteAccount call results from a federated/ap
+	// account update. In this case, we will already have a partial representation of the account,
+	// derived from converting the AP representation to a gtsmodel representation. If this field
+	// is provided, then GetRemoteAccount will use this as a basis for building the full account.
+	PartialAccount *gtsmodel.Account
 }
 
 // GetRemoteAccount completely dereferences a remote account, converts it to a GtS model account,
@@ -107,8 +112,16 @@ func (d *deref) GetRemoteAccount(ctx context.Context, params GetRemoteAccountPar
 	skipResolve := params.SkipResolve
 
 	// this first step checks if we have the
-	// account in the database somewhere already
+	// account in the database somewhere already,
+	// or if we've been provided it as a partial
 	switch {
+	case params.PartialAccount != nil:
+		foundAccount = params.PartialAccount
+		if foundAccount.Domain == "" || foundAccount.Domain == config.GetHost() || foundAccount.Domain == config.GetAccountDomain() {
+			// this is actually a local account,
+			// make sure we don't try to resolve
+			skipResolve = true
+		}
 	case params.RemoteAccountID != nil:
 		uri := params.RemoteAccountID
 		host := uri.Host
@@ -163,7 +176,7 @@ func (d *deref) GetRemoteAccount(ctx context.Context, params GetRemoteAccountPar
 		params.RemoteAccountHost = params.RemoteAccountID.Host
 		// ... but we still need the username so we can do a finger for the accountDomain
 
-		// check if we had the account stored already and got it earlier
+		// check if we got the account earlier
 		if foundAccount != nil {
 			params.RemoteAccountUsername = foundAccount.Username
 		} else {
@@ -201,9 +214,10 @@ func (d *deref) GetRemoteAccount(ctx context.Context, params GetRemoteAccountPar
 	// to save on remote calls, only webfinger if:
 	// - we don't know the remote account ActivityPub ID yet OR
 	// - we haven't found the account yet in some other way OR
+	// - we were passed a partial account in params OR
 	// - we haven't webfingered the account for two days AND the account isn't an instance account
 	var fingered time.Time
-	if params.RemoteAccountID == nil || foundAccount == nil || (foundAccount.LastWebfingeredAt.Before(time.Now().Add(webfingerInterval)) && !instanceAccount(foundAccount)) {
+	if params.RemoteAccountID == nil || foundAccount == nil || params.PartialAccount != nil || (foundAccount.LastWebfingeredAt.Before(time.Now().Add(webfingerInterval)) && !instanceAccount(foundAccount)) {
 		accountDomain, params.RemoteAccountID, err = d.fingerRemoteAccount(ctx, params.RequestingUsername, params.RemoteAccountUsername, params.RemoteAccountHost)
 		if err != nil {
 			err = fmt.Errorf("GetRemoteAccount: error while fingering: %s", err)
@@ -263,7 +277,7 @@ func (d *deref) GetRemoteAccount(ctx context.Context, params GetRemoteAccountPar
 		foundAccount.LastWebfingeredAt = fingered
 		foundAccount.UpdatedAt = time.Now()
 
-		err = d.db.Put(ctx, foundAccount)
+		foundAccount, err = d.db.PutAccount(ctx, foundAccount)
 		if err != nil {
 			err = fmt.Errorf("GetRemoteAccount: error putting new account: %s", err)
 			return
@@ -273,13 +287,10 @@ func (d *deref) GetRemoteAccount(ctx context.Context, params GetRemoteAccountPar
 	}
 
 	// we had the account already, but now we know the account domain, so update it if it's different
+	var accountDomainChanged bool
 	if !strings.EqualFold(foundAccount.Domain, accountDomain) {
+		accountDomainChanged = true
 		foundAccount.Domain = accountDomain
-		foundAccount, err = d.db.UpdateAccount(ctx, foundAccount)
-		if err != nil {
-			err = fmt.Errorf("GetRemoteAccount: error updating account: %s", err)
-			return
-		}
 	}
 
 	// if SharedInboxURI is nil, that means we don't know yet if this account has
@@ -327,8 +338,7 @@ func (d *deref) GetRemoteAccount(ctx context.Context, params GetRemoteAccountPar
 		foundAccount.LastWebfingeredAt = fingered
 	}
 
-	if fieldsChanged || fingeredChanged || sharedInboxChanged {
+	if accountDomainChanged || sharedInboxChanged || fieldsChanged || fingeredChanged {
-		foundAccount.UpdatedAt = time.Now()
 		foundAccount, err = d.db.UpdateAccount(ctx, foundAccount)
 		if err != nil {
 			return nil, fmt.Errorf("GetRemoteAccount: error updating remoteAccount: %s", err)
@@ -423,15 +433,20 @@ func (d *deref) populateAccountFields(ctx context.Context, account *gtsmodel.Acc
 		return false, fmt.Errorf("populateAccountFields: domain %s is blocked", accountURI.Host)
 	}
 
-	t, err := d.transportController.NewTransportForUsername(ctx, requestingUsername)
+	var changed bool
-	if err != nil {
-		return false, fmt.Errorf("populateAccountFields: error getting transport for user: %s", err)
-	}
 
 	// fetch the header and avatar
-	changed, err := d.fetchRemoteAccountMedia(ctx, account, t, blocking)
+	if mediaChanged, err := d.fetchRemoteAccountMedia(ctx, account, requestingUsername, blocking); err != nil {
-	if err != nil {
 		return false, fmt.Errorf("populateAccountFields: error fetching header/avi for account: %s", err)
+	} else if mediaChanged {
+		changed = mediaChanged
+	}
+
+	// fetch any emojis used in note, fields, display name, etc
+	if emojisChanged, err := d.fetchRemoteAccountEmojis(ctx, account, requestingUsername); err != nil {
+		return false, fmt.Errorf("populateAccountFields: error fetching emojis for account: %s", err)
+	} else if emojisChanged {
+		changed = emojisChanged
 	}
 
 	return changed, nil
@@ -449,17 +464,11 @@ func (d *deref) populateAccountFields(ctx context.Context, account *gtsmodel.Acc
 //
 // If blocking is true, then the calls to the media manager made by this function will be blocking:
 // in other words, the function won't return until the header and the avatar have been fully processed.
-func (d *deref) fetchRemoteAccountMedia(ctx context.Context, targetAccount *gtsmodel.Account, t transport.Transport, blocking bool) (bool, error) {
+func (d *deref) fetchRemoteAccountMedia(ctx context.Context, targetAccount *gtsmodel.Account, requestingUsername string, blocking bool) (bool, error) {
-	changed := false
+	var (
-
+		changed bool
-	accountURI, err := url.Parse(targetAccount.URI)
+		t       transport.Transport
-	if err != nil {
+	)
-		return changed, fmt.Errorf("fetchRemoteAccountMedia: couldn't parse account URI %s: %s", targetAccount.URI, err)
-	}
-
-	if blocked, err := d.db.IsDomainBlocked(ctx, accountURI.Host); blocked || err != nil {
-		return changed, fmt.Errorf("fetchRemoteAccountMedia: domain %s is blocked", accountURI.Host)
-	}
 
 	if targetAccount.AvatarRemoteURL != "" && (targetAccount.AvatarMediaAttachmentID == "") {
 		var processingMedia *media.ProcessingMedia
@@ -479,6 +488,14 @@ func (d *deref) fetchRemoteAccountMedia(ctx context.Context, targetAccount *gtsm
 				return changed, err
 			}
 
+			if t == nil {
+				var err error
+				t, err = d.transportController.NewTransportForUsername(ctx, requestingUsername)
+				if err != nil {
+					return false, fmt.Errorf("fetchRemoteAccountMedia: error getting transport for user: %s", err)
+				}
+			}
+
 			data := func(innerCtx context.Context) (io.Reader, int, error) {
 				return t.DereferenceMedia(innerCtx, avatarIRI)
 			}
@@ -537,6 +554,14 @@ func (d *deref) fetchRemoteAccountMedia(ctx context.Context, targetAccount *gtsm
 				return changed, err
 			}
 
+			if t == nil {
+				var err error
+				t, err = d.transportController.NewTransportForUsername(ctx, requestingUsername)
+				if err != nil {
+					return false, fmt.Errorf("fetchRemoteAccountMedia: error getting transport for user: %s", err)
+				}
+			}
+
 			data := func(innerCtx context.Context) (io.Reader, int, error) {
 				return t.DereferenceMedia(innerCtx, headerIRI)
 			}
@@ -580,6 +605,118 @@ func (d *deref) fetchRemoteAccountMedia(ctx context.Context, targetAccount *gtsm
 	return changed, nil
 }
 
+func (d *deref) fetchRemoteAccountEmojis(ctx context.Context, targetAccount *gtsmodel.Account, requestingUsername string) (bool, error) {
+	maybeEmojis := targetAccount.Emojis
+	maybeEmojiIDs := targetAccount.EmojiIDs
+
+	// It's possible that the account had emoji IDs set on it, but not Emojis
+	// themselves, depending on how it was fetched before being passed to us.
+	//
+	// If we only have IDs, fetch the emojis from the db. We know they're in
+	// there or else they wouldn't have IDs.
+	if len(maybeEmojiIDs) > len(maybeEmojis) {
+		maybeEmojis = []*gtsmodel.Emoji{}
+		for _, emojiID := range maybeEmojiIDs {
+			maybeEmoji, err := d.db.GetEmojiByID(ctx, emojiID)
+			if err != nil {
+				return false, err
+			}
+			maybeEmojis = append(maybeEmojis, maybeEmoji)
+		}
+	}
+
+	// For all the maybe emojis we have, we either fetch them from the database
+	// (if we haven't already), or dereference them from the remote instance.
+	gotEmojis, err := d.populateEmojis(ctx, maybeEmojis, requestingUsername)
+	if err != nil {
+		return false, err
+	}
+
+	// Extract the ID of each fetched or dereferenced emoji, so we can attach
+	// this to the account if necessary.
+	gotEmojiIDs := make([]string, 0, len(gotEmojis))
+	for _, e := range gotEmojis {
+		gotEmojiIDs = append(gotEmojiIDs, e.ID)
+	}
+
+	var (
+		changed  = false // have the emojis for this account changed?
+		maybeLen = len(maybeEmojis)
+		gotLen   = len(gotEmojis)
+	)
+
+	// if the length of everything is zero, this is simple:
+	// nothing has changed and there's nothing to do
+	if maybeLen == 0 && gotLen == 0 {
+		return changed, nil
+	}
+
+	// if the *amount* of emojis on the account has changed, then the got emojis
+	// are definitely different from the previous ones (if there were any) --
+	// the account has either more or fewer emojis set on it now, so take the
+	// discovered emojis as the new correct ones.
+	if maybeLen != gotLen {
+		changed = true
+		targetAccount.Emojis = gotEmojis
+		targetAccount.EmojiIDs = gotEmojiIDs
+		return changed, nil
+	}
+
+	// if the lengths are the same but not all of the slices are
+	// zero, something *might* have changed, so we have to check
+
+	// 1. did we have emojis before that we don't have now?
+	for _, maybeEmoji := range maybeEmojis {
+		var stillPresent bool
+
+		for _, gotEmoji := range gotEmojis {
+			if maybeEmoji.URI == gotEmoji.URI {
+				// the emoji we maybe had is still present now,
+				// so we can stop checking gotEmojis
+				stillPresent = true
+				break
+			}
+		}
+
+		if !stillPresent {
+			// at least one maybeEmoji is no longer present in
+			// the got emojis, so we can stop checking now
+			changed = true
+			targetAccount.Emojis = gotEmojis
+			targetAccount.EmojiIDs = gotEmojiIDs
+			return changed, nil
+		}
+	}
+
+	// 2. do we have emojis now that we didn't have before?
+	for _, gotEmoji := range gotEmojis {
+		var wasPresent bool
+
+		for _, maybeEmoji := range maybeEmojis {
+			// check emoji IDs here as well, because unreferenced
+			// maybe emojis we didn't already have would not have
+			// had IDs set on them yet
+			if gotEmoji.URI == maybeEmoji.URI && gotEmoji.ID == maybeEmoji.ID {
+				// this got emoji was present already in the maybeEmoji,
+				// so we can stop checking through maybeEmojis
+				wasPresent = true
+				break
+			}
+		}
+
+		if !wasPresent {
+			// at least one gotEmojis was not present in
+			// the maybeEmojis, so we can stop checking now
+			changed = true
+			targetAccount.Emojis = gotEmojis
+			targetAccount.EmojiIDs = gotEmojiIDs
+			return changed, nil
+		}
+	}
+
+	return changed, nil
+}
+
 func lockAndLoad(ctx context.Context, lock *sync.Mutex, processing *media.ProcessingMedia, processingMap map[string]*media.ProcessingMedia, accountID string) error {
 	// whatever happens, remove the in-process media from the map
 	defer func() {

internal/federation/dereferencing/account_test.go

@@ -27,6 +27,7 @@ import (
 	"github.com/superseriousbusiness/gotosocial/internal/ap"
 	"github.com/superseriousbusiness/gotosocial/internal/config"
 	"github.com/superseriousbusiness/gotosocial/internal/federation/dereferencing"
+	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
 	"github.com/superseriousbusiness/gotosocial/testrig"
 )
 
@@ -195,6 +196,205 @@ func (suite *AccountTestSuite) TestDereferenceLocalAccountWithUnknownUserURI() {
 	suite.Nil(fetchedAccount)
 }
 
+func (suite *AccountTestSuite) TestDereferenceRemoteAccountWithPartial() {
+	fetchingAccount := suite.testAccounts["local_account_1"]
+
+	remoteAccount := suite.testAccounts["remote_account_1"]
+	remoteAccountPartial := &gtsmodel.Account{
+		ID:                    remoteAccount.ID,
+		ActorType:             remoteAccount.ActorType,
+		Language:              remoteAccount.Language,
+		CreatedAt:             remoteAccount.CreatedAt,
+		UpdatedAt:             remoteAccount.UpdatedAt,
+		Username:              remoteAccount.Username,
+		Domain:                remoteAccount.Domain,
+		DisplayName:           remoteAccount.DisplayName,
+		URI:                   remoteAccount.URI,
+		InboxURI:              remoteAccount.URI,
+		SharedInboxURI:        remoteAccount.SharedInboxURI,
+		PublicKeyURI:          remoteAccount.PublicKeyURI,
+		URL:                   remoteAccount.URL,
+		FollowingURI:          remoteAccount.FollowingURI,
+		FollowersURI:          remoteAccount.FollowersURI,
+		OutboxURI:             remoteAccount.OutboxURI,
+		FeaturedCollectionURI: remoteAccount.FeaturedCollectionURI,
+		Emojis: []*gtsmodel.Emoji{
+			// dereference an emoji we don't have stored yet
+			{
+				URI:             "http://fossbros-anonymous.io/emoji/01GD5HCC2YECT012TK8PAGX4D1",
+				Shortcode:       "kip_van_den_bos",
+				UpdatedAt:       testrig.TimeMustParse("2022-09-13T12:13:12+02:00"),
+				ImageRemoteURL:  "http://fossbros-anonymous.io/emoji/kip.gif",
+				Disabled:        testrig.FalseBool(),
+				VisibleInPicker: testrig.FalseBool(),
+				Domain:          "fossbros-anonymous.io",
+			},
+		},
+	}
+
+	fetchedAccount, err := suite.dereferencer.GetRemoteAccount(context.Background(), dereferencing.GetRemoteAccountParams{
+		RequestingUsername:    fetchingAccount.Username,
+		RemoteAccountID:       testrig.URLMustParse(remoteAccount.URI),
+		RemoteAccountHost:     remoteAccount.Domain,
+		RemoteAccountUsername: remoteAccount.Username,
+		PartialAccount:        remoteAccountPartial,
+		Blocking:              true,
+	})
+	suite.NoError(err)
+	suite.NotNil(fetchedAccount)
+	suite.NotNil(fetchedAccount.EmojiIDs)
+	suite.NotNil(fetchedAccount.Emojis)
+}
+
+func (suite *AccountTestSuite) TestDereferenceRemoteAccountWithPartial2() {
+	fetchingAccount := suite.testAccounts["local_account_1"]
+
+	knownEmoji := suite.testEmojis["yell"]
+
+	remoteAccount := suite.testAccounts["remote_account_1"]
+	remoteAccountPartial := &gtsmodel.Account{
+		ID:                    remoteAccount.ID,
+		ActorType:             remoteAccount.ActorType,
+		Language:              remoteAccount.Language,
+		CreatedAt:             remoteAccount.CreatedAt,
+		UpdatedAt:             remoteAccount.UpdatedAt,
+		Username:              remoteAccount.Username,
+		Domain:                remoteAccount.Domain,
+		DisplayName:           remoteAccount.DisplayName,
+		URI:                   remoteAccount.URI,
+		InboxURI:              remoteAccount.URI,
+		SharedInboxURI:        remoteAccount.SharedInboxURI,
+		PublicKeyURI:          remoteAccount.PublicKeyURI,
+		URL:                   remoteAccount.URL,
+		FollowingURI:          remoteAccount.FollowingURI,
+		FollowersURI:          remoteAccount.FollowersURI,
+		OutboxURI:             remoteAccount.OutboxURI,
+		FeaturedCollectionURI: remoteAccount.FeaturedCollectionURI,
+		Emojis: []*gtsmodel.Emoji{
+			// an emoji we already have
+			{
+				URI:             knownEmoji.URI,
+				Shortcode:       knownEmoji.Shortcode,
+				UpdatedAt:       knownEmoji.CreatedAt,
+				ImageRemoteURL:  knownEmoji.ImageRemoteURL,
+				Disabled:        knownEmoji.Disabled,
+				VisibleInPicker: knownEmoji.VisibleInPicker,
+			},
+		},
+	}
+
+	fetchedAccount, err := suite.dereferencer.GetRemoteAccount(context.Background(), dereferencing.GetRemoteAccountParams{
+		RequestingUsername:    fetchingAccount.Username,
+		RemoteAccountID:       testrig.URLMustParse(remoteAccount.URI),
+		RemoteAccountHost:     remoteAccount.Domain,
+		RemoteAccountUsername: remoteAccount.Username,
+		PartialAccount:        remoteAccountPartial,
+		Blocking:              true,
+	})
+	suite.NoError(err)
+	suite.NotNil(fetchedAccount)
+	suite.NotNil(fetchedAccount.EmojiIDs)
+	suite.NotNil(fetchedAccount.Emojis)
+}
+
+func (suite *AccountTestSuite) TestDereferenceRemoteAccountWithPartial3() {
+	fetchingAccount := suite.testAccounts["local_account_1"]
+
+	knownEmoji := suite.testEmojis["yell"]
+
+	remoteAccount := suite.testAccounts["remote_account_1"]
+	remoteAccountPartial := &gtsmodel.Account{
+		ID:                    remoteAccount.ID,
+		ActorType:             remoteAccount.ActorType,
+		Language:              remoteAccount.Language,
+		CreatedAt:             remoteAccount.CreatedAt,
+		UpdatedAt:             remoteAccount.UpdatedAt,
+		Username:              remoteAccount.Username,
+		Domain:                remoteAccount.Domain,
+		DisplayName:           remoteAccount.DisplayName,
+		URI:                   remoteAccount.URI,
+		InboxURI:              remoteAccount.URI,
+		SharedInboxURI:        remoteAccount.SharedInboxURI,
+		PublicKeyURI:          remoteAccount.PublicKeyURI,
+		URL:                   remoteAccount.URL,
+		FollowingURI:          remoteAccount.FollowingURI,
+		FollowersURI:          remoteAccount.FollowersURI,
+		OutboxURI:             remoteAccount.OutboxURI,
+		FeaturedCollectionURI: remoteAccount.FeaturedCollectionURI,
+		Emojis: []*gtsmodel.Emoji{
+			// an emoji we already have
+			{
+				URI:             knownEmoji.URI,
+				Shortcode:       knownEmoji.Shortcode,
+				UpdatedAt:       knownEmoji.CreatedAt,
+				ImageRemoteURL:  knownEmoji.ImageRemoteURL,
+				Disabled:        knownEmoji.Disabled,
+				VisibleInPicker: knownEmoji.VisibleInPicker,
+			},
+		},
+	}
+
+	fetchedAccount, err := suite.dereferencer.GetRemoteAccount(context.Background(), dereferencing.GetRemoteAccountParams{
+		RequestingUsername:    fetchingAccount.Username,
+		RemoteAccountID:       testrig.URLMustParse(remoteAccount.URI),
+		RemoteAccountHost:     remoteAccount.Domain,
+		RemoteAccountUsername: remoteAccount.Username,
+		PartialAccount:        remoteAccountPartial,
+		Blocking:              true,
+	})
+	suite.NoError(err)
+	suite.NotNil(fetchedAccount)
+	suite.NotNil(fetchedAccount.EmojiIDs)
+	suite.NotNil(fetchedAccount.Emojis)
+	suite.Equal(knownEmoji.URI, fetchedAccount.Emojis[0].URI)
+
+	remoteAccountPartial2 := &gtsmodel.Account{
+		ID:                    remoteAccount.ID,
+		ActorType:             remoteAccount.ActorType,
+		Language:              remoteAccount.Language,
+		CreatedAt:             remoteAccount.CreatedAt,
+		UpdatedAt:             remoteAccount.UpdatedAt,
+		Username:              remoteAccount.Username,
+		Domain:                remoteAccount.Domain,
+		DisplayName:           remoteAccount.DisplayName,
+		URI:                   remoteAccount.URI,
+		InboxURI:              remoteAccount.URI,
+		SharedInboxURI:        remoteAccount.SharedInboxURI,
+		PublicKeyURI:          remoteAccount.PublicKeyURI,
+		URL:                   remoteAccount.URL,
+		FollowingURI:          remoteAccount.FollowingURI,
+		FollowersURI:          remoteAccount.FollowersURI,
+		OutboxURI:             remoteAccount.OutboxURI,
+		FeaturedCollectionURI: remoteAccount.FeaturedCollectionURI,
+		Emojis: []*gtsmodel.Emoji{
+			// dereference an emoji we don't have stored yet
+			{
+				URI:             "http://fossbros-anonymous.io/emoji/01GD5HCC2YECT012TK8PAGX4D1",
+				Shortcode:       "kip_van_den_bos",
+				UpdatedAt:       testrig.TimeMustParse("2022-09-13T12:13:12+02:00"),
+				ImageRemoteURL:  "http://fossbros-anonymous.io/emoji/kip.gif",
+				Disabled:        testrig.FalseBool(),
+				VisibleInPicker: testrig.FalseBool(),
+				Domain:          "fossbros-anonymous.io",
+			},
+		},
+	}
+
+	fetchedAccount2, err := suite.dereferencer.GetRemoteAccount(context.Background(), dereferencing.GetRemoteAccountParams{
+		RequestingUsername:    fetchingAccount.Username,
+		RemoteAccountID:       testrig.URLMustParse(remoteAccount.URI),
+		RemoteAccountHost:     remoteAccount.Domain,
+		RemoteAccountUsername: remoteAccount.Username,
+		PartialAccount:        remoteAccountPartial2,
+		Blocking:              true,
+	})
+	suite.NoError(err)
+	suite.NotNil(fetchedAccount2)
+	suite.NotNil(fetchedAccount2.EmojiIDs)
+	suite.NotNil(fetchedAccount2.Emojis)
+	suite.Equal("http://fossbros-anonymous.io/emoji/01GD5HCC2YECT012TK8PAGX4D1", fetchedAccount2.Emojis[0].URI)
+}
+
 func TestAccountTestSuite(t *testing.T) {
 	suite.Run(t, new(AccountTestSuite))
 }

internal/federation/dereferencing/dereferencer_test.go

@@ -41,6 +41,7 @@ type DereferencerStandardTestSuite struct {
 	testRemoteServices    map[string]vocab.ActivityStreamsService
 	testRemoteAttachments map[string]testrig.RemoteAttachmentFile
 	testAccounts          map[string]*gtsmodel.Account
+	testEmojis            map[string]*gtsmodel.Emoji
 
 	dereferencer dereferencing.Dereferencer
 }
@@ -55,6 +56,7 @@ func (suite *DereferencerStandardTestSuite) SetupTest() {
 	suite.testRemoteGroups = testrig.NewTestFediGroups()
 	suite.testRemoteServices = testrig.NewTestFediServices()
 	suite.testRemoteAttachments = testrig.NewTestFediAttachments("../../../testrig/media")
+	suite.testEmojis = testrig.NewTestEmojis()
 
 	suite.db = testrig.NewTestDB()
 	suite.storage = testrig.NewInMemoryStorage()

internal/federation/dereferencing/emoji.go

@@ -24,6 +24,10 @@ import (
 	"io"
 	"net/url"
 
+	"github.com/superseriousbusiness/gotosocial/internal/db"
+	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
+	"github.com/superseriousbusiness/gotosocial/internal/id"
+	"github.com/superseriousbusiness/gotosocial/internal/log"
 	"github.com/superseriousbusiness/gotosocial/internal/media"
 )
 
@@ -49,3 +53,57 @@ func (d *deref) GetRemoteEmoji(ctx context.Context, requestingUsername string, r
 
 	return processingMedia, nil
 }
+
+func (d *deref) populateEmojis(ctx context.Context, rawEmojis []*gtsmodel.Emoji, requestingUsername string) ([]*gtsmodel.Emoji, error) {
+	// At this point we should know:
+	// * the AP uri of the emoji
+	// * the domain of the emoji
+	// * the shortcode of the emoji
+	// * the remote URL of the image
+	// This should be enough to dereference the emoji
+
+	gotEmojis := make([]*gtsmodel.Emoji, 0, len(rawEmojis))
+
+	for _, e := range rawEmojis {
+		var gotEmoji *gtsmodel.Emoji
+		var err error
+
+		// check if we've already got this emoji in the db
+		if gotEmoji, err = d.db.GetEmojiByURI(ctx, e.URI); err != nil && err != db.ErrNoEntries {
+			log.Errorf("populateEmojis: error checking database for emoji %s: %s", e.URI, err)
+			continue
+		}
+
+		if gotEmoji == nil {
+			// it's new! go get it!
+			newEmojiID, err := id.NewRandomULID()
+			if err != nil {
+				log.Errorf("populateEmojis: error generating id for remote emoji %s: %s", e.URI, err)
+				continue
+			}
+
+			processingEmoji, err := d.GetRemoteEmoji(ctx, requestingUsername, e.ImageRemoteURL, e.Shortcode, newEmojiID, e.URI, &media.AdditionalEmojiInfo{
+				Domain:               &e.Domain,
+				ImageRemoteURL:       &e.ImageRemoteURL,
+				ImageStaticRemoteURL: &e.ImageRemoteURL,
+				Disabled:             e.Disabled,
+				VisibleInPicker:      e.VisibleInPicker,
+			})
+
+			if err != nil {
+				log.Errorf("populateEmojis: couldn't get remote emoji %s: %s", e.URI, err)
+				continue
+			}
+
+			if gotEmoji, err = processingEmoji.LoadEmoji(ctx); err != nil {
+				log.Errorf("populateEmojis: couldn't load remote emoji %s: %s", e.URI, err)
+				continue
+			}
+		}
+
+		// if we get here, we either had the emoji already or we successfully fetched it
+		gotEmojis = append(gotEmojis, gotEmoji)
+	}
+
+	return gotEmojis, nil
+}

internal/federation/dereferencing/status.go

@@ -406,58 +406,17 @@ func (d *deref) populateStatusAttachments(ctx context.Context, status *gtsmodel.
 }
 
 func (d *deref) populateStatusEmojis(ctx context.Context, status *gtsmodel.Status, requestingUsername string) error {
-	// At this point we should know:
+	emojis, err := d.populateEmojis(ctx, status.Emojis, requestingUsername)
-	// * the AP uri of the emoji
+	if err != nil {
-	// * the domain of the emoji
+		return err
-	// * the shortcode of the emoji
-	// * the remote URL of the image
-	// This should be enough to dereference the emoji
-
-	gotEmojis := make([]*gtsmodel.Emoji, 0, len(status.Emojis))
-	emojiIDs := make([]string, 0, len(status.Emojis))
-
-	for _, e := range status.Emojis {
-		var gotEmoji *gtsmodel.Emoji
-		var err error
-
-		// check if we've already got this emoji in the db
-		if gotEmoji, err = d.db.GetEmojiByURI(ctx, e.URI); err != nil && err != db.ErrNoEntries {
-			log.Errorf("populateStatusEmojis: error checking database for emoji %s: %s", e.URI, err)
-			continue
-		}
-
-		if gotEmoji == nil {
-			// it's new! go get it!
-			newEmojiID, err := id.NewRandomULID()
-			if err != nil {
-				log.Errorf("populateStatusEmojis: error generating id for remote emoji %s: %s", e.URI, err)
-				continue
-			}
-
-			processingEmoji, err := d.GetRemoteEmoji(ctx, requestingUsername, e.ImageRemoteURL, e.Shortcode, newEmojiID, e.URI, &media.AdditionalEmojiInfo{
-				Domain:               &e.Domain,
-				ImageRemoteURL:       &e.ImageRemoteURL,
-				ImageStaticRemoteURL: &e.ImageRemoteURL,
-				Disabled:             e.Disabled,
-				VisibleInPicker:      e.VisibleInPicker,
-			})
-			if err != nil {
-				log.Errorf("populateStatusEmojis: couldn't get remote emoji %s: %s", e.URI, err)
-				continue
-			}
-
-			if gotEmoji, err = processingEmoji.LoadEmoji(ctx); err != nil {
-				log.Errorf("populateStatusEmojis: couldn't load remote emoji %s: %s", e.URI, err)
-				continue
-			}
-		}
-
-		// if we get here, we either had the emoji already or we successfully fetched it
-		gotEmojis = append(gotEmojis, gotEmoji)
-		emojiIDs = append(emojiIDs, gotEmoji.ID)
 	}
 
-	status.Emojis = gotEmojis
+	emojiIDs := make([]string, 0, len(emojis))
+	for _, e := range emojis {
+		emojiIDs = append(emojiIDs, e.ID)
+	}
+
+	status.Emojis = emojis
 	status.EmojiIDs = emojiIDs
 	return nil
 }

internal/federation/federatingdb/update.go

@@ -121,7 +121,7 @@ func (f *federatingDB) Update(ctx context.Context, asType vocab.Type) error {
 			return fmt.Errorf("UPDATE: error converting to account: %s", err)
 		}
 
-		if updatedAcct.Domain == config.GetHost() {
+		if updatedAcct.Domain == config.GetHost() || updatedAcct.Domain == config.GetAccountDomain() {
 			// no need to update local accounts
 			// in fact, if we do this will break the shit out of things so do NOT
 			return nil
@@ -136,13 +136,8 @@ func (f *federatingDB) Update(ctx context.Context, asType vocab.Type) error {
 		updatedAcct.ID = requestingAcct.ID
 		updatedAcct.Language = requestingAcct.Language
 
-		// do the update
+		// pass to the processor for further updating of eg., avatar/header, emojis
-		updatedAcct, err = f.db.UpdateAccount(ctx, updatedAcct)
+		// the actual db insert/update will take place a bit later
-		if err != nil {
-			return fmt.Errorf("UPDATE: database error inserting updated account: %s", err)
-		}
-
-		// pass to the processor for further processing of eg., avatar/header
 		f.fedWorker.Queue(messages.FromFederator{
 			APObjectType:     ap.ObjectProfile,
 			APActivityType:   ap.ActivityUpdate,

internal/gtsmodel/account.go

@@ -41,6 +41,8 @@ type Account struct {
 	HeaderMediaAttachment   *MediaAttachment `validate:"-" bun:"rel:belongs-to"`                                                                                     // MediaAttachment corresponding to headerMediaAttachmentID
 	HeaderRemoteURL         string           `validate:"omitempty,url" bun:",nullzero"`                                                                              // For a non-local account, where can the header be fetched?
 	DisplayName             string           `validate:"-" bun:""`                                                                                                   // DisplayName for this account. Can be empty, then just the Username will be used for display purposes.
+	EmojiIDs                []string         `validate:"dive,ulid" bun:"emojis,array"`                                                                               // Database IDs of any emojis used in this account's bio, display name, etc
+	Emojis                  []*Emoji         `validate:"-" bun:"attached_emojis,m2m:account_to_emojis"`                                                              // Emojis corresponding to emojiIDs. https://bun.uptrace.dev/guide/relations.html#many-to-many-relation
 	Fields                  []Field          `validate:"-"`                                                                                                          // a key/value map of fields that this account has added to their profile
 	Note                    string           `validate:"-" bun:""`                                                                                                   // A note that this account has on their profile (ie., the account's bio/description of themselves)
 	NoteRaw                 string           `validate:"-" bun:""`                                                                                                   // The raw contents of .Note without conversion to HTML, only available when requester = target
@@ -76,6 +78,14 @@ type Account struct {
 	SuspensionOrigin        string           `validate:"omitempty,ulid" bun:"type:CHAR(26),nullzero"`                                                                // id of the database entry that caused this account to become suspended -- can be an account ID or a domain block ID
 }
 
+// AccountToEmoji is an intermediate struct to facilitate the many2many relationship between an account and one or more emojis.
+type AccountToEmoji struct {
+	AccountID string   `validate:"ulid,required" bun:"type:CHAR(26),unique:accountemoji,nullzero,notnull"`
+	Account   *Account `validate:"-" bun:"rel:belongs-to"`
+	EmojiID   string   `validate:"ulid,required" bun:"type:CHAR(26),unique:accountemoji,nullzero,notnull"`
+	Emoji     *Emoji   `validate:"-" bun:"rel:belongs-to"`
+}
+
 // Field represents a key value field on an account, for things like pronouns, website, etc.
 // VerifiedAt is optional, to be used only if Value is a URL to a webpage that contains the
 // username of the user.

internal/processing/account/delete.go

@@ -259,6 +259,8 @@ selectStatusesLoop:
 	account.HeaderMediaAttachmentID = ""
 	account.HeaderRemoteURL = ""
 	account.Reason = ""
+	account.Emojis = []*gtsmodel.Emoji{}
+	account.EmojiIDs = []string{}
 	account.Fields = []gtsmodel.Field{}
 	hideCollections := true
 	account.HideCollections = &hideCollections

internal/processing/account/update.go

@@ -27,6 +27,7 @@ import (
 	"github.com/superseriousbusiness/gotosocial/internal/ap"
 	apimodel "github.com/superseriousbusiness/gotosocial/internal/api/model"
 	"github.com/superseriousbusiness/gotosocial/internal/config"
+	"github.com/superseriousbusiness/gotosocial/internal/db"
 	"github.com/superseriousbusiness/gotosocial/internal/gtserror"
 	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
 	"github.com/superseriousbusiness/gotosocial/internal/log"
@@ -46,11 +47,14 @@ func (p *processor) Update(ctx context.Context, account *gtsmodel.Account, form
 		account.Bot = form.Bot
 	}
 
+	var updateEmojis bool
+
 	if form.DisplayName != nil {
 		if err := validate.DisplayName(*form.DisplayName); err != nil {
 			return nil, gtserror.NewErrorBadRequest(err)
 		}
 		account.DisplayName = text.SanitizePlaintext(*form.DisplayName)
+		updateEmojis = true
 	}
 
 	if form.Note != nil {
@@ -69,6 +73,30 @@ func (p *processor) Update(ctx context.Context, account *gtsmodel.Account, form
 
 		// Set updated HTML-ified note
 		account.Note = note
+		updateEmojis = true
+	}
+
+	if updateEmojis {
+		// account emojis -- treat the sanitized display name and raw
+		// note like one long text for the purposes of deriving emojis
+		accountEmojiShortcodes := util.DeriveEmojisFromText(account.DisplayName + "\n\n" + account.NoteRaw)
+		account.Emojis = make([]*gtsmodel.Emoji, 0, len(accountEmojiShortcodes))
+		account.EmojiIDs = make([]string, 0, len(accountEmojiShortcodes))
+
+		for _, shortcode := range accountEmojiShortcodes {
+			emoji, err := p.db.GetEmojiByShortcodeDomain(ctx, shortcode, "")
+			if err != nil {
+				if err != db.ErrNoEntries {
+					log.Errorf("error getting local emoji with shortcode %s: %s", shortcode, err)
+				}
+				continue
+			}
+
+			if *emoji.VisibleInPicker && !*emoji.Disabled {
+				account.Emojis = append(account.Emojis, emoji)
+				account.EmojiIDs = append(account.EmojiIDs, emoji.ID)
+			}
+		}
 	}
 
 	if form.Avatar != nil && form.Avatar.Size != 0 {

internal/processing/fromfederator.go

@@ -369,10 +369,14 @@ func (p *processor) processUpdateAccountFromFederator(ctx context.Context, feder
 		return err
 	}
 
+	// further database updates occur inside getremoteaccount
 	if _, err := p.federator.GetRemoteAccount(ctx, dereferencing.GetRemoteAccountParams{
-		RequestingUsername: federatorMsg.ReceivingAccount.Username,
+		RequestingUsername:    federatorMsg.ReceivingAccount.Username,
-		RemoteAccountID:    incomingAccountURL,
+		RemoteAccountID:       incomingAccountURL,
-		Blocking:           true,
+		RemoteAccountHost:     incomingAccount.Domain,
+		RemoteAccountUsername: incomingAccount.Username,
+		PartialAccount:        incomingAccount,
+		Blocking:              true,
 	}); err != nil {
 		return fmt.Errorf("error enriching updated account from federator: %s", err)
 	}

internal/typeutils/astointernal.go

@@ -88,6 +88,13 @@ func (c *converter) ASRepresentationToAccount(ctx context.Context, accountable a
 		acct.DisplayName = displayName
 	}
 
+	// account emojis (used in bio, display name, fields)
+	if emojis, err := ap.ExtractEmojis(accountable); err != nil {
+		log.Infof("ASRepresentationToAccount: error extracting account emojis: %s", err)
+	} else {
+		acct.Emojis = emojis
+	}
+
 	// TODO: fields aka attachment array
 
 	// note aka summary

internal/typeutils/converter_test.go

@@ -473,6 +473,7 @@ type TypeUtilsTestSuite struct {
 	testAccounts map[string]*gtsmodel.Account
 	testStatuses map[string]*gtsmodel.Status
 	testPeople   map[string]vocab.ActivityStreamsPerson
+	testEmojis   map[string]*gtsmodel.Emoji
 
 	typeconverter typeutils.TypeConverter
 }
@@ -485,6 +486,7 @@ func (suite *TypeUtilsTestSuite) SetupSuite() {
 	suite.testAccounts = testrig.NewTestAccounts()
 	suite.testStatuses = testrig.NewTestStatuses()
 	suite.testPeople = testrig.NewTestFediPeople()
+	suite.testEmojis = testrig.NewTestEmojis()
 	suite.typeconverter = typeutils.NewConverter(suite.db)
 }
 

internal/typeutils/internaltoas.go

@@ -216,8 +216,33 @@ func (c *converter) AccountToAS(ctx context.Context, a *gtsmodel.Account) (vocab
 	// set the public key property on the Person
 	person.SetW3IDSecurityV1PublicKey(publicKeyProp)
 
-	// tag
+	// tags
-	// TODO: Any tags used in the summary of this profile
+	tagProp := streams.NewActivityStreamsTagProperty()
+
+	// tag -- emojis
+	emojis := a.Emojis
+	if len(a.EmojiIDs) > len(emojis) {
+		emojis = []*gtsmodel.Emoji{}
+		for _, emojiID := range a.EmojiIDs {
+			emoji, err := c.db.GetEmojiByID(ctx, emojiID)
+			if err != nil {
+				return nil, fmt.Errorf("AccountToAS: error getting emoji %s from database: %s", emojiID, err)
+			}
+			emojis = append(emojis, emoji)
+		}
+	}
+	for _, emoji := range emojis {
+		asEmoji, err := c.EmojiToAS(ctx, emoji)
+		if err != nil {
+			return nil, fmt.Errorf("AccountToAS: error converting emoji to AS emoji: %s", err)
+		}
+		tagProp.AppendTootEmoji(asEmoji)
+	}
+
+	// tag -- hashtags
+	// TODO
+
+	person.SetActivityStreamsTag(tagProp)
 
 	// attachment
 	// Used for profile fields.
@@ -477,11 +502,11 @@ func (c *converter) StatusToAS(ctx context.Context, s *gtsmodel.Status) (vocab.A
 		}
 	}
 	for _, emoji := range emojis {
-		asMention, err := c.EmojiToAS(ctx, emoji)
+		asEmoji, err := c.EmojiToAS(ctx, emoji)
 		if err != nil {
 			return nil, fmt.Errorf("StatusToAS: error converting emoji to AS emoji: %s", err)
 		}
-		tagProp.AppendTootEmoji(asMention)
+		tagProp.AppendTootEmoji(asEmoji)
 	}
 
 	// tag -- hashtags

internal/typeutils/internaltoas_test.go

@@ -26,6 +26,7 @@ import (
 
 	"github.com/stretchr/testify/suite"
 	"github.com/superseriousbusiness/activity/streams"
+	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
 	"github.com/superseriousbusiness/gotosocial/testrig"
 )
 
@@ -34,7 +35,8 @@ type InternalToASTestSuite struct {
 }
 
 func (suite *InternalToASTestSuite) TestAccountToAS() {
-	testAccount := suite.testAccounts["local_account_1"] // take zork for this test
+	testAccount := &gtsmodel.Account{}
+	*testAccount = *suite.testAccounts["local_account_1"] // take zork for this test
 
 	asPerson, err := suite.typeconverter.AccountToAS(context.Background(), testAccount)
 	suite.NoError(err)
@@ -49,11 +51,33 @@ func (suite *InternalToASTestSuite) TestAccountToAS() {
 	// this is necessary because the order of multiple 'context' entries is not determinate
 	trimmed := strings.Split(string(bytes), "\"discoverable\"")[1]
 
-	suite.Equal(`:true,"featured":"http://localhost:8080/users/the_mighty_zork/collections/featured","followers":"http://localhost:8080/users/the_mighty_zork/followers","following":"http://localhost:8080/users/the_mighty_zork/following","icon":{"mediaType":"image/jpeg","type":"Image","url":"http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/original/01F8MH58A357CV5K7R7TJMSH6S.jpeg"},"id":"http://localhost:8080/users/the_mighty_zork","image":{"mediaType":"image/jpeg","type":"Image","url":"http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/original/01PFPMWK2FF0D9WMHEJHR07C3Q.jpeg"},"inbox":"http://localhost:8080/users/the_mighty_zork/inbox","manuallyApprovesFollowers":false,"name":"original zork (he/they)","outbox":"http://localhost:8080/users/the_mighty_zork/outbox","preferredUsername":"the_mighty_zork","publicKey":{"id":"http://localhost:8080/users/the_mighty_zork/main-key","owner":"http://localhost:8080/users/the_mighty_zork","publicKeyPem":"-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwXTcOAvM1Jiw5Ffpk0qn\nr0cwbNvFe/5zQ+Tp7tumK/ZnT37o7X0FUEXrxNi+dkhmeJ0gsaiN+JQGNUewvpSk\nPIAXKvi908aSfCGjs7bGlJCJCuDuL5d6m7hZnP9rt9fJc70GElPpG0jc9fXwlz7T\nlsPb2ecatmG05Y4jPwdC+oN4MNCv9yQzEvCVMzl76EJaM602kIHC1CISn0rDFmYd\n9rSN7XPlNJw1F6PbpJ/BWQ+pXHKw3OEwNTETAUNYiVGnZU+B7a7bZC9f6/aPbJuV\nt8Qmg+UnDvW1Y8gmfHnxaWG2f5TDBvCHmcYtucIZPLQD4trAozC4ryqlmCWQNKbt\n0wIDAQAB\n-----END PUBLIC KEY-----\n"},"summary":"\u003cp\u003ehey yo this is my profile!\u003c/p\u003e","type":"Person","url":"http://localhost:8080/@the_mighty_zork"}`, trimmed)
+	suite.Equal(`:true,"featured":"http://localhost:8080/users/the_mighty_zork/collections/featured","followers":"http://localhost:8080/users/the_mighty_zork/followers","following":"http://localhost:8080/users/the_mighty_zork/following","icon":{"mediaType":"image/jpeg","type":"Image","url":"http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/original/01F8MH58A357CV5K7R7TJMSH6S.jpeg"},"id":"http://localhost:8080/users/the_mighty_zork","image":{"mediaType":"image/jpeg","type":"Image","url":"http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/original/01PFPMWK2FF0D9WMHEJHR07C3Q.jpeg"},"inbox":"http://localhost:8080/users/the_mighty_zork/inbox","manuallyApprovesFollowers":false,"name":"original zork (he/they)","outbox":"http://localhost:8080/users/the_mighty_zork/outbox","preferredUsername":"the_mighty_zork","publicKey":{"id":"http://localhost:8080/users/the_mighty_zork/main-key","owner":"http://localhost:8080/users/the_mighty_zork","publicKeyPem":"-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwXTcOAvM1Jiw5Ffpk0qn\nr0cwbNvFe/5zQ+Tp7tumK/ZnT37o7X0FUEXrxNi+dkhmeJ0gsaiN+JQGNUewvpSk\nPIAXKvi908aSfCGjs7bGlJCJCuDuL5d6m7hZnP9rt9fJc70GElPpG0jc9fXwlz7T\nlsPb2ecatmG05Y4jPwdC+oN4MNCv9yQzEvCVMzl76EJaM602kIHC1CISn0rDFmYd\n9rSN7XPlNJw1F6PbpJ/BWQ+pXHKw3OEwNTETAUNYiVGnZU+B7a7bZC9f6/aPbJuV\nt8Qmg+UnDvW1Y8gmfHnxaWG2f5TDBvCHmcYtucIZPLQD4trAozC4ryqlmCWQNKbt\n0wIDAQAB\n-----END PUBLIC KEY-----\n"},"summary":"\u003cp\u003ehey yo this is my profile!\u003c/p\u003e","tag":[],"type":"Person","url":"http://localhost:8080/@the_mighty_zork"}`, trimmed)
+}
+
+func (suite *InternalToASTestSuite) TestAccountToASWithEmoji() {
+	testAccount := &gtsmodel.Account{}
+	*testAccount = *suite.testAccounts["local_account_1"] // take zork for this test
+	testAccount.Emojis = []*gtsmodel.Emoji{suite.testEmojis["rainbow"]}
+
+	asPerson, err := suite.typeconverter.AccountToAS(context.Background(), testAccount)
+	suite.NoError(err)
+
+	ser, err := streams.Serialize(asPerson)
+	suite.NoError(err)
+
+	bytes, err := json.Marshal(ser)
+	suite.NoError(err)
+
+	// trim off everything up to 'discoverable';
+	// this is necessary because the order of multiple 'context' entries is not determinate
+	trimmed := strings.Split(string(bytes), "\"discoverable\"")[1]
+
+	suite.Equal(`:true,"featured":"http://localhost:8080/users/the_mighty_zork/collections/featured","followers":"http://localhost:8080/users/the_mighty_zork/followers","following":"http://localhost:8080/users/the_mighty_zork/following","icon":{"mediaType":"image/jpeg","type":"Image","url":"http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/original/01F8MH58A357CV5K7R7TJMSH6S.jpeg"},"id":"http://localhost:8080/users/the_mighty_zork","image":{"mediaType":"image/jpeg","type":"Image","url":"http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/original/01PFPMWK2FF0D9WMHEJHR07C3Q.jpeg"},"inbox":"http://localhost:8080/users/the_mighty_zork/inbox","manuallyApprovesFollowers":false,"name":"original zork (he/they)","outbox":"http://localhost:8080/users/the_mighty_zork/outbox","preferredUsername":"the_mighty_zork","publicKey":{"id":"http://localhost:8080/users/the_mighty_zork/main-key","owner":"http://localhost:8080/users/the_mighty_zork","publicKeyPem":"-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwXTcOAvM1Jiw5Ffpk0qn\nr0cwbNvFe/5zQ+Tp7tumK/ZnT37o7X0FUEXrxNi+dkhmeJ0gsaiN+JQGNUewvpSk\nPIAXKvi908aSfCGjs7bGlJCJCuDuL5d6m7hZnP9rt9fJc70GElPpG0jc9fXwlz7T\nlsPb2ecatmG05Y4jPwdC+oN4MNCv9yQzEvCVMzl76EJaM602kIHC1CISn0rDFmYd\n9rSN7XPlNJw1F6PbpJ/BWQ+pXHKw3OEwNTETAUNYiVGnZU+B7a7bZC9f6/aPbJuV\nt8Qmg+UnDvW1Y8gmfHnxaWG2f5TDBvCHmcYtucIZPLQD4trAozC4ryqlmCWQNKbt\n0wIDAQAB\n-----END PUBLIC KEY-----\n"},"summary":"\u003cp\u003ehey yo this is my profile!\u003c/p\u003e","tag":{"icon":{"mediaType":"image/png","type":"Image","url":"http://localhost:8080/fileserver/01F8MH17FWEB39HZJ76B6VXSKF/emoji/original/01F8MH9H8E4VG3KDYJR9EGPXCQ.png"},"id":"http://localhost:8080/emoji/01F8MH9H8E4VG3KDYJR9EGPXCQ","name":":rainbow:","type":"Emoji"},"type":"Person","url":"http://localhost:8080/@the_mighty_zork"}`, trimmed)
 }
 
 func (suite *InternalToASTestSuite) TestAccountToASWithSharedInbox() {
-	testAccount := suite.testAccounts["local_account_1"] // take zork for this test
+	testAccount := &gtsmodel.Account{}
+	*testAccount = *suite.testAccounts["local_account_1"] // take zork for this test
 	sharedInbox := "http://localhost:8080/sharedInbox"
 	testAccount.SharedInboxURI = &sharedInbox
 
@@ -70,7 +94,7 @@ func (suite *InternalToASTestSuite) TestAccountToASWithSharedInbox() {
 	// this is necessary because the order of multiple 'context' entries is not determinate
 	trimmed := strings.Split(string(bytes), "\"discoverable\"")[1]
 
-	suite.Equal(`:true,"endpoints":{"sharedInbox":"http://localhost:8080/sharedInbox"},"featured":"http://localhost:8080/users/the_mighty_zork/collections/featured","followers":"http://localhost:8080/users/the_mighty_zork/followers","following":"http://localhost:8080/users/the_mighty_zork/following","icon":{"mediaType":"image/jpeg","type":"Image","url":"http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/original/01F8MH58A357CV5K7R7TJMSH6S.jpeg"},"id":"http://localhost:8080/users/the_mighty_zork","image":{"mediaType":"image/jpeg","type":"Image","url":"http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/original/01PFPMWK2FF0D9WMHEJHR07C3Q.jpeg"},"inbox":"http://localhost:8080/users/the_mighty_zork/inbox","manuallyApprovesFollowers":false,"name":"original zork (he/they)","outbox":"http://localhost:8080/users/the_mighty_zork/outbox","preferredUsername":"the_mighty_zork","publicKey":{"id":"http://localhost:8080/users/the_mighty_zork/main-key","owner":"http://localhost:8080/users/the_mighty_zork","publicKeyPem":"-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwXTcOAvM1Jiw5Ffpk0qn\nr0cwbNvFe/5zQ+Tp7tumK/ZnT37o7X0FUEXrxNi+dkhmeJ0gsaiN+JQGNUewvpSk\nPIAXKvi908aSfCGjs7bGlJCJCuDuL5d6m7hZnP9rt9fJc70GElPpG0jc9fXwlz7T\nlsPb2ecatmG05Y4jPwdC+oN4MNCv9yQzEvCVMzl76EJaM602kIHC1CISn0rDFmYd\n9rSN7XPlNJw1F6PbpJ/BWQ+pXHKw3OEwNTETAUNYiVGnZU+B7a7bZC9f6/aPbJuV\nt8Qmg+UnDvW1Y8gmfHnxaWG2f5TDBvCHmcYtucIZPLQD4trAozC4ryqlmCWQNKbt\n0wIDAQAB\n-----END PUBLIC KEY-----\n"},"summary":"\u003cp\u003ehey yo this is my profile!\u003c/p\u003e","type":"Person","url":"http://localhost:8080/@the_mighty_zork"}`, trimmed)
+	suite.Equal(`:true,"endpoints":{"sharedInbox":"http://localhost:8080/sharedInbox"},"featured":"http://localhost:8080/users/the_mighty_zork/collections/featured","followers":"http://localhost:8080/users/the_mighty_zork/followers","following":"http://localhost:8080/users/the_mighty_zork/following","icon":{"mediaType":"image/jpeg","type":"Image","url":"http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/original/01F8MH58A357CV5K7R7TJMSH6S.jpeg"},"id":"http://localhost:8080/users/the_mighty_zork","image":{"mediaType":"image/jpeg","type":"Image","url":"http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/original/01PFPMWK2FF0D9WMHEJHR07C3Q.jpeg"},"inbox":"http://localhost:8080/users/the_mighty_zork/inbox","manuallyApprovesFollowers":false,"name":"original zork (he/they)","outbox":"http://localhost:8080/users/the_mighty_zork/outbox","preferredUsername":"the_mighty_zork","publicKey":{"id":"http://localhost:8080/users/the_mighty_zork/main-key","owner":"http://localhost:8080/users/the_mighty_zork","publicKeyPem":"-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwXTcOAvM1Jiw5Ffpk0qn\nr0cwbNvFe/5zQ+Tp7tumK/ZnT37o7X0FUEXrxNi+dkhmeJ0gsaiN+JQGNUewvpSk\nPIAXKvi908aSfCGjs7bGlJCJCuDuL5d6m7hZnP9rt9fJc70GElPpG0jc9fXwlz7T\nlsPb2ecatmG05Y4jPwdC+oN4MNCv9yQzEvCVMzl76EJaM602kIHC1CISn0rDFmYd\n9rSN7XPlNJw1F6PbpJ/BWQ+pXHKw3OEwNTETAUNYiVGnZU+B7a7bZC9f6/aPbJuV\nt8Qmg+UnDvW1Y8gmfHnxaWG2f5TDBvCHmcYtucIZPLQD4trAozC4ryqlmCWQNKbt\n0wIDAQAB\n-----END PUBLIC KEY-----\n"},"summary":"\u003cp\u003ehey yo this is my profile!\u003c/p\u003e","tag":[],"type":"Person","url":"http://localhost:8080/@the_mighty_zork"}`, trimmed)
 }
 
 func (suite *InternalToASTestSuite) TestOutboxToASCollection() {

internal/typeutils/internaltofrontend.go

@@ -159,8 +159,29 @@ func (c *converter) AccountToAPIAccountPublic(ctx context.Context, a *gtsmodel.A
 		fields = append(fields, mField)
 	}
 
+	// account emojis
 	emojis := []model.Emoji{}
-	// TODO: account emojis
+	gtsEmojis := a.Emojis
+	if len(a.EmojiIDs) > len(gtsEmojis) {
+		gtsEmojis = []*gtsmodel.Emoji{}
+		for _, emojiID := range a.EmojiIDs {
+			emoji, err := c.db.GetEmojiByID(ctx, emojiID)
+			if err != nil {
+				return nil, fmt.Errorf("AccountToAPIAccountPublic: error getting emoji %s from database: %s", emojiID, err)
+			}
+			gtsEmojis = append(gtsEmojis, emoji)
+		}
+	}
+	for _, emoji := range gtsEmojis {
+		if *emoji.Disabled {
+			continue
+		}
+		apiEmoji, err := c.EmojiToAPIEmoji(ctx, emoji)
+		if err != nil {
+			return nil, fmt.Errorf("AccountToAPIAccountPublic: error converting emoji to api emoji: %s", err)
+		}
+		emojis = append(emojis, apiEmoji)
+	}
 
 	var acct string
 	if a.Domain != "" {
@@ -194,7 +215,7 @@ func (c *converter) AccountToAPIAccountPublic(ctx context.Context, a *gtsmodel.A
 		FollowingCount: followingCount,
 		StatusesCount:  statusesCount,
 		LastStatusAt:   lastStatusAt,
-		Emojis:         emojis, // TODO: implement this
+		Emojis:         emojis,
 		Fields:         fields,
 		Suspended:      suspended,
 		CustomCSS:      a.CustomCSS,

internal/typeutils/internaltofrontend_test.go

@@ -43,6 +43,36 @@ func (suite *InternalToFrontendTestSuite) TestAccountToFrontend() {
 	suite.Equal(`{"id":"01F8MH1H7YV1Z7D2C8K2730QBF","username":"the_mighty_zork","acct":"the_mighty_zork","display_name":"original zork (he/they)","locked":false,"bot":false,"created_at":"2022-05-20T11:09:18.000Z","note":"\u003cp\u003ehey yo this is my profile!\u003c/p\u003e","url":"http://localhost:8080/@the_mighty_zork","avatar":"http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/original/01F8MH58A357CV5K7R7TJMSH6S.jpeg","avatar_static":"http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/small/01F8MH58A357CV5K7R7TJMSH6S.jpeg","header":"http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/original/01PFPMWK2FF0D9WMHEJHR07C3Q.jpeg","header_static":"http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/small/01PFPMWK2FF0D9WMHEJHR07C3Q.jpeg","followers_count":2,"following_count":2,"statuses_count":5,"last_status_at":"2022-05-20T11:37:55.000Z","emojis":[],"fields":[]}`, string(b))
 }
 
+func (suite *InternalToFrontendTestSuite) TestAccountToFrontendWithEmojiStruct() {
+	testAccount := suite.testAccounts["local_account_1"] // take zork for this test
+	testEmoji := suite.testEmojis["rainbow"]
+	
+	testAccount.Emojis = []*gtsmodel.Emoji{testEmoji}
+	
+	apiAccount, err := suite.typeconverter.AccountToAPIAccountPublic(context.Background(), testAccount)
+	suite.NoError(err)
+	suite.NotNil(apiAccount)
+
+	b, err := json.Marshal(apiAccount)
+	suite.NoError(err)
+	suite.Equal(`{"id":"01F8MH1H7YV1Z7D2C8K2730QBF","username":"the_mighty_zork","acct":"the_mighty_zork","display_name":"original zork (he/they)","locked":false,"bot":false,"created_at":"2022-05-20T11:09:18.000Z","note":"\u003cp\u003ehey yo this is my profile!\u003c/p\u003e","url":"http://localhost:8080/@the_mighty_zork","avatar":"http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/original/01F8MH58A357CV5K7R7TJMSH6S.jpeg","avatar_static":"http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/small/01F8MH58A357CV5K7R7TJMSH6S.jpeg","header":"http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/original/01PFPMWK2FF0D9WMHEJHR07C3Q.jpeg","header_static":"http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/small/01PFPMWK2FF0D9WMHEJHR07C3Q.jpeg","followers_count":2,"following_count":2,"statuses_count":5,"last_status_at":"2022-05-20T11:37:55.000Z","emojis":[{"shortcode":"rainbow","url":"http://localhost:8080/fileserver/01F8MH17FWEB39HZJ76B6VXSKF/emoji/original/01F8MH9H8E4VG3KDYJR9EGPXCQ.png","static_url":"http://localhost:8080/fileserver/01F8MH17FWEB39HZJ76B6VXSKF/emoji/static/01F8MH9H8E4VG3KDYJR9EGPXCQ.png","visible_in_picker":true}],"fields":[]}`, string(b))
+}
+
+func (suite *InternalToFrontendTestSuite) TestAccountToFrontendWithEmojiIDs() {
+	testAccount := suite.testAccounts["local_account_1"] // take zork for this test
+	testEmoji := suite.testEmojis["rainbow"]
+	
+	testAccount.EmojiIDs = []string{testEmoji.ID}
+	
+	apiAccount, err := suite.typeconverter.AccountToAPIAccountPublic(context.Background(), testAccount)
+	suite.NoError(err)
+	suite.NotNil(apiAccount)
+
+	b, err := json.Marshal(apiAccount)
+	suite.NoError(err)
+	suite.Equal(`{"id":"01F8MH1H7YV1Z7D2C8K2730QBF","username":"the_mighty_zork","acct":"the_mighty_zork","display_name":"original zork (he/they)","locked":false,"bot":false,"created_at":"2022-05-20T11:09:18.000Z","note":"\u003cp\u003ehey yo this is my profile!\u003c/p\u003e","url":"http://localhost:8080/@the_mighty_zork","avatar":"http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/original/01F8MH58A357CV5K7R7TJMSH6S.jpeg","avatar_static":"http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/small/01F8MH58A357CV5K7R7TJMSH6S.jpeg","header":"http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/original/01PFPMWK2FF0D9WMHEJHR07C3Q.jpeg","header_static":"http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/small/01PFPMWK2FF0D9WMHEJHR07C3Q.jpeg","followers_count":2,"following_count":2,"statuses_count":5,"last_status_at":"2022-05-20T11:37:55.000Z","emojis":[{"shortcode":"rainbow","url":"http://localhost:8080/fileserver/01F8MH17FWEB39HZJ76B6VXSKF/emoji/original/01F8MH9H8E4VG3KDYJR9EGPXCQ.png","static_url":"http://localhost:8080/fileserver/01F8MH17FWEB39HZJ76B6VXSKF/emoji/static/01F8MH9H8E4VG3KDYJR9EGPXCQ.png","visible_in_picker":true}],"fields":[]}`, string(b))
+}
+
 func (suite *InternalToFrontendTestSuite) TestAccountToFrontendSensitive() {
 	testAccount := suite.testAccounts["local_account_1"] // take zork for this test
 	apiAccount, err := suite.typeconverter.AccountToAPIAccountSensitive(context.Background(), testAccount)

testrig/db.go

@@ -32,6 +32,7 @@ import (
 
 var testModels = []interface{}{
 	&gtsmodel.Account{},
+	&gtsmodel.AccountToEmoji{},
 	&gtsmodel.Application{},
 	&gtsmodel.Block{},
 	&gtsmodel.DomainBlock{},

testrig/testmodels.go

@@ -952,6 +952,28 @@ func NewTestEmojis() map[string]*gtsmodel.Emoji {
 			VisibleInPicker:        TrueBool(),
 			CategoryID:             "",
 		},
+		"yell": {
+			ID:                     "01GD5KP5CQEE1R3X43Y1EHS2CW",
+			Shortcode:              "yell",
+			Domain:                 "fossbros-anonymous.io",
+			CreatedAt:              TimeMustParse("2020-03-18T13:12:00+01:00"),
+			UpdatedAt:              TimeMustParse("2020-03-18T13:12:00+01:00"),
+			ImageRemoteURL:         "http://fossbros-anonymous.io/emoji/yell.gif",
+			ImageStaticRemoteURL:   "",
+			ImageURL:               "http://localhost:8080/fileserver/01GD5KR15NHTY8FZ01CD4D08XP/emoji/original/01GD5KP5CQEE1R3X43Y1EHS2CW.png",
+			ImagePath:              "/tmp/gotosocial/01GD5KR15NHTY8FZ01CD4D08XP/emoji/original/01GD5KP5CQEE1R3X43Y1EHS2CW.png",
+			ImageStaticURL:         "http://localhost:8080/fileserver/01GD5KR15NHTY8FZ01CD4D08XP/emoji/static/01GD5KP5CQEE1R3X43Y1EHS2CW.png",
+			ImageStaticPath:        "/tmp/gotosocial/01GD5KR15NHTY8FZ01CD4D08XP/emoji/static/01GD5KP5CQEE1R3X43Y1EHS2CW.png",
+			ImageContentType:       "image/png",
+			ImageStaticContentType: "image/png",
+			ImageFileSize:          10889,
+			ImageStaticFileSize:    10808,
+			ImageUpdatedAt:         TimeMustParse("2020-03-18T13:12:00+01:00"),
+			Disabled:               FalseBool(),
+			URI:                    "http://fossbros-anonymous.io/emoji/01GD5KP5CQEE1R3X43Y1EHS2CW",
+			VisibleInPicker:        FalseBool(),
+			CategoryID:             "",
+		},
 	}
 }
 
@@ -1045,6 +1067,10 @@ func newTestStoredEmoji() map[string]filenames {
 			Original: "rainbow-original.png",
 			Static:   "rainbow-static.png",
 		},
+		"yell": {
+			Original: "yell-original.png",
+			Static:   "yell-static.png",
+		},
 	}
 }
 
@@ -1941,6 +1967,22 @@ func NewTestFediServices() map[string]vocab.ActivityStreamsService {
 	}
 }
 
+func NewTestFediEmojis() map[string]vocab.TootEmoji {
+	return map[string]vocab.TootEmoji{
+		"http://fossbros-anonymous.io/emoji/01GD5HCC2YECT012TK8PAGX4D1": newAPEmoji(
+			URLMustParse("http://fossbros-anonymous.io/emoji/01GD5HCC2YECT012TK8PAGX4D1"),
+			"kip_van_den_bos",
+			TimeMustParse("2022-09-13T12:13:12+02:00"),
+			newAPImage(
+				URLMustParse("http://fossbros-anonymous.io/emoji/kip.gif"),
+				"image/gif",
+				"",
+				"",
+			),
+		),
+	}
+}
+
 // RemoteAttachmentFile mimics a remote (federated) attachment
 type RemoteAttachmentFile struct {
 	Data        []byte
@@ -1968,6 +2010,16 @@ func NewTestFediAttachments(relativePath string) map[string]RemoteAttachmentFile
 		panic(err)
 	}
 
+	kipBytes, err := os.ReadFile(fmt.Sprintf("%s/kip-original.gif", relativePath))
+	if err != nil {
+		panic(err)
+	}
+
+	yellBytes, err := os.ReadFile(fmt.Sprintf("%s/yell-original.png", relativePath))
+	if err != nil {
+		panic(err)
+	}
+
 	return map[string]RemoteAttachmentFile{
 		"https://s3-us-west-2.amazonaws.com/plushcity/media_attachments/files/106/867/380/219/163/828/original/88e8758c5f011439.jpg": {
 			Data:        beeBytes,
@@ -1985,6 +2037,14 @@ func NewTestFediAttachments(relativePath string) map[string]RemoteAttachmentFile
 			Data:        peglinBytes,
 			ContentType: "image/gif",
 		},
+		"http://fossbros-anonymous.io/emoji/kip.gif": {
+			Data:        kipBytes,
+			ContentType: "image/gif",
+		},
+		"http://fossbros-anonymous.io/emoji/yell.gif": {
+			Data:        yellBytes,
+			ContentType: "image/png",
+		},
 	}
 }
 
@@ -2857,6 +2917,28 @@ func newAPImage(url *url.URL, mediaType string, imageDescription string, blurhas
 	return image
 }
 
+func newAPEmoji(id *url.URL, name string, updated time.Time, image vocab.ActivityStreamsImage) vocab.TootEmoji {
+	emoji := streams.NewTootEmoji()
+
+	idProp := streams.NewJSONLDIdProperty()
+	idProp.SetIRI(id)
+	emoji.SetJSONLDId(idProp)
+
+	nameProp := streams.NewActivityStreamsNameProperty()
+	nameProp.AppendXMLSchemaString(`:` + strings.Trim(name, ":") + `:`)
+	emoji.SetActivityStreamsName(nameProp)
+
+	updatedProp := streams.NewActivityStreamsUpdatedProperty()
+	updatedProp.Set(updated)
+	emoji.SetActivityStreamsUpdated(updatedProp)
+
+	iconProp := streams.NewActivityStreamsIconProperty()
+	iconProp.AppendActivityStreamsImage(image)
+	emoji.SetActivityStreamsIcon(iconProp)
+
+	return emoji
+}
+
 // NewAPNote returns a new activity streams note for the given parameters
 func NewAPNote(
 	noteID *url.URL,

testrig/transportcontroller.go

@@ -64,6 +64,7 @@ type MockHTTPClient struct {
 	testRemoteGroups      map[string]vocab.ActivityStreamsGroup
 	testRemoteServices    map[string]vocab.ActivityStreamsService
 	testRemoteAttachments map[string]RemoteAttachmentFile
+	testRemoteEmojis      map[string]vocab.TootEmoji
 
 	SentMessages sync.Map
 }
@@ -90,6 +91,7 @@ func NewMockHTTPClient(do func(req *http.Request) (*http.Response, error), relat
 	mockHTTPClient.testRemoteGroups = NewTestFediGroups()
 	mockHTTPClient.testRemoteServices = NewTestFediServices()
 	mockHTTPClient.testRemoteAttachments = NewTestFediAttachments(relativeMediaPath)
+	mockHTTPClient.testRemoteEmojis = NewTestFediEmojis()
 
 	mockHTTPClient.do = func(req *http.Request) (*http.Response, error) {
 		responseCode := http.StatusNotFound
@@ -173,6 +175,19 @@ func NewMockHTTPClient(do func(req *http.Request) (*http.Response, error), relat
 			responseBytes = serviceJSON
 			responseContentType = applicationActivityJSON
 			responseContentLength = len(serviceJSON)
+		} else if emoji, ok := mockHTTPClient.testRemoteEmojis[req.URL.String()]; ok {
+			emojiI, err := streams.Serialize(emoji)
+			if err != nil {
+				panic(err)
+			}
+			emojiJSON, err := json.Marshal(emojiI)
+			if err != nil {
+				panic(err)
+			}
+			responseCode = http.StatusOK
+			responseBytes = emojiJSON
+			responseContentType = applicationActivityJSON
+			responseContentLength = len(emojiJSON)
 		} else if attachment, ok := mockHTTPClient.testRemoteAttachments[req.URL.String()]; ok {
 			responseCode = http.StatusOK
 			responseBytes = attachment.Data

web/template/profile.tmpl

@@ -12,12 +12,12 @@
         <div class="basic">
             <div id="profile-basic-filler2"></div>
             <a href="{{.account.Avatar}}" class="avatar"><img src="{{.account.Avatar}}" alt="{{if .account.DisplayName}}{{.account.DisplayName}}{{else}}{{.account.Username}}{{end}}'s avatar"></a>
-            <div class="displayname">{{if .account.DisplayName}}{{.account.DisplayName}}{{else}}{{.account.Username}}{{end}}</div>
+            <div class="displayname">{{if .account.DisplayName}}{{emojify .account.Emojis (escape .account.DisplayName)}}{{else}}{{.account.Username}}{{end}}</div>
             <div class="username"><span>@{{.account.Username}}</span><span>@{{.instance.AccountDomain}}</span></div>
         </div>
         <div class="detailed">
             <div class="bio">
-                {{ if .account.Note }}{{ .account.Note | noescape }}{{else}}This GoToSocial user hasn't written a bio yet!{{end}}
+                {{ if .account.Note }}{{emojify .account.Emojis (noescape .account.Note)}}{{else}}This GoToSocial user hasn't written a bio yet!{{end}}
             </div>
         </div>
         <div class="accountstats">

web/template/status.tmpl

@@ -1,6 +1,6 @@
 <div class="contentgrid">
 	<a href="{{.Account.URL}}" class="avatar"><img src="{{.Account.Avatar}}" alt=""></a>
-	<a href="{{.Account.URL}}" class="displayname">{{if .Account.DisplayName}}{{.Account.DisplayName}}{{else}}{{.Account.Username}}{{end}}</a>
+	<a href="{{.Account.URL}}" class="displayname">{{if .Account.DisplayName}}{{emojify .Account.Emojis (escape .Account.DisplayName)}}{{else}}{{.Account.Username}}{{end}}</a>
 	<a href="{{.Account.URL}}" class="username">@{{.Account.Acct}}</a>
 	<div class="text">
 		{{if .SpoilerText}}