[feature] Refetch emojis when they change on remote instances (#905)

* select emoji using image_static_url

* use updated on AP emojis

* allow refetch of updated emojis

* cheeky workaround for test

* clean up old files for refreshed emoji

* check error for originalPostData

* shorten GetEmojiByStaticImageURL

* delete kirby (sorry nintendo)

2 files changed, 7 insertions, 3 deletions

diff --git a/internal/typeutils/internaltoas.go b/internal/typeutils/internaltoas.go
index 6194dba82..c84dd09f4 100644
--- a/internal/typeutils/internaltoas.go
+++ b/internal/typeutils/internaltoas.go
@@ -760,6 +760,10 @@ func (c *converter) EmojiToAS(ctx context.Context, e *gtsmodel.Emoji) (vocab.Too
 	iconProperty.AppendActivityStreamsImage(iconImage)
 	emoji.SetActivityStreamsIcon(iconProperty)
 
+	updatedProp := streams.NewActivityStreamsUpdatedProperty()
+	updatedProp.Set(e.ImageUpdatedAt)
+	emoji.SetActivityStreamsUpdated(updatedProp)
+
 	return emoji, nil
 }
 
diff --git a/internal/typeutils/internaltoas_test.go b/internal/typeutils/internaltoas_test.go
index f2845be02..b63fa7aea 100644
--- a/internal/typeutils/internaltoas_test.go
+++ b/internal/typeutils/internaltoas_test.go
@@ -72,7 +72,7 @@ func (suite *InternalToASTestSuite) TestAccountToASWithEmoji() {
 	// 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)
+	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","updated":"2021-09-20T12:40:37+02:00"},"type":"Person","url":"http://localhost:8080/@the_mighty_zork"}`, trimmed)
 }
 
 func (suite *InternalToASTestSuite) TestAccountToASWithSharedInbox() {
@@ -157,7 +157,7 @@ func (suite *InternalToASTestSuite) TestStatusWithTagsToASWithIDs() {
 	// http://joinmastodon.org/ns, https://www.w3.org/ns/activitystreams --
 	// will appear, so trim them out of the string for consistency
 	trimmed := strings.SplitAfter(string(bytes), `"attachment":`)[1]
-	suite.Equal(`{"blurhash":"LNJRdVM{00Rj%Mayt7j[4nWBofRj","mediaType":"image/jpeg","name":"Black and white image of some 50's style text saying: Welcome On Board","type":"Document","url":"http://localhost:8080/fileserver/01F8MH17FWEB39HZJ76B6VXSKF/attachment/original/01F8MH6NEM8D7527KZAECTCR76.jpeg"},"attributedTo":"http://localhost:8080/users/admin","cc":"http://localhost:8080/users/admin/followers","content":"hello world! #welcome ! first post on the instance :rainbow: !","id":"http://localhost:8080/users/admin/statuses/01F8MH75CBF9JFX4ZAD54N0W0R","published":"2021-10-20T11:36:45Z","replies":{"first":{"id":"http://localhost:8080/users/admin/statuses/01F8MH75CBF9JFX4ZAD54N0W0R/replies?page=true","next":"http://localhost:8080/users/admin/statuses/01F8MH75CBF9JFX4ZAD54N0W0R/replies?only_other_accounts=false\u0026page=true","partOf":"http://localhost:8080/users/admin/statuses/01F8MH75CBF9JFX4ZAD54N0W0R/replies","type":"CollectionPage"},"id":"http://localhost:8080/users/admin/statuses/01F8MH75CBF9JFX4ZAD54N0W0R/replies","type":"Collection"},"sensitive":false,"summary":"","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"},"to":"https://www.w3.org/ns/activitystreams#Public","type":"Note","url":"http://localhost:8080/@admin/statuses/01F8MH75CBF9JFX4ZAD54N0W0R"}`, trimmed)
+	suite.Equal(`{"blurhash":"LNJRdVM{00Rj%Mayt7j[4nWBofRj","mediaType":"image/jpeg","name":"Black and white image of some 50's style text saying: Welcome On Board","type":"Document","url":"http://localhost:8080/fileserver/01F8MH17FWEB39HZJ76B6VXSKF/attachment/original/01F8MH6NEM8D7527KZAECTCR76.jpeg"},"attributedTo":"http://localhost:8080/users/admin","cc":"http://localhost:8080/users/admin/followers","content":"hello world! #welcome ! first post on the instance :rainbow: !","id":"http://localhost:8080/users/admin/statuses/01F8MH75CBF9JFX4ZAD54N0W0R","published":"2021-10-20T11:36:45Z","replies":{"first":{"id":"http://localhost:8080/users/admin/statuses/01F8MH75CBF9JFX4ZAD54N0W0R/replies?page=true","next":"http://localhost:8080/users/admin/statuses/01F8MH75CBF9JFX4ZAD54N0W0R/replies?only_other_accounts=false\u0026page=true","partOf":"http://localhost:8080/users/admin/statuses/01F8MH75CBF9JFX4ZAD54N0W0R/replies","type":"CollectionPage"},"id":"http://localhost:8080/users/admin/statuses/01F8MH75CBF9JFX4ZAD54N0W0R/replies","type":"Collection"},"sensitive":false,"summary":"","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","updated":"2021-09-20T10:40:37Z"},"to":"https://www.w3.org/ns/activitystreams#Public","type":"Note","url":"http://localhost:8080/@admin/statuses/01F8MH75CBF9JFX4ZAD54N0W0R"}`, trimmed)
 }
 
 func (suite *InternalToASTestSuite) TestStatusWithTagsToASFromDB() {
@@ -179,7 +179,7 @@ func (suite *InternalToASTestSuite) TestStatusWithTagsToASFromDB() {
 	// http://joinmastodon.org/ns, https://www.w3.org/ns/activitystreams --
 	// will appear, so trim them out of the string for consistency
 	trimmed := strings.SplitAfter(string(bytes), `"attachment":`)[1]
-	suite.Equal(`{"blurhash":"LNJRdVM{00Rj%Mayt7j[4nWBofRj","mediaType":"image/jpeg","name":"Black and white image of some 50's style text saying: Welcome On Board","type":"Document","url":"http://localhost:8080/fileserver/01F8MH17FWEB39HZJ76B6VXSKF/attachment/original/01F8MH6NEM8D7527KZAECTCR76.jpeg"},"attributedTo":"http://localhost:8080/users/admin","cc":"http://localhost:8080/users/admin/followers","content":"hello world! #welcome ! first post on the instance :rainbow: !","id":"http://localhost:8080/users/admin/statuses/01F8MH75CBF9JFX4ZAD54N0W0R","published":"2021-10-20T11:36:45Z","replies":{"first":{"id":"http://localhost:8080/users/admin/statuses/01F8MH75CBF9JFX4ZAD54N0W0R/replies?page=true","next":"http://localhost:8080/users/admin/statuses/01F8MH75CBF9JFX4ZAD54N0W0R/replies?only_other_accounts=false\u0026page=true","partOf":"http://localhost:8080/users/admin/statuses/01F8MH75CBF9JFX4ZAD54N0W0R/replies","type":"CollectionPage"},"id":"http://localhost:8080/users/admin/statuses/01F8MH75CBF9JFX4ZAD54N0W0R/replies","type":"Collection"},"sensitive":false,"summary":"","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"},"to":"https://www.w3.org/ns/activitystreams#Public","type":"Note","url":"http://localhost:8080/@admin/statuses/01F8MH75CBF9JFX4ZAD54N0W0R"}`, trimmed)
+	suite.Equal(`{"blurhash":"LNJRdVM{00Rj%Mayt7j[4nWBofRj","mediaType":"image/jpeg","name":"Black and white image of some 50's style text saying: Welcome On Board","type":"Document","url":"http://localhost:8080/fileserver/01F8MH17FWEB39HZJ76B6VXSKF/attachment/original/01F8MH6NEM8D7527KZAECTCR76.jpeg"},"attributedTo":"http://localhost:8080/users/admin","cc":"http://localhost:8080/users/admin/followers","content":"hello world! #welcome ! first post on the instance :rainbow: !","id":"http://localhost:8080/users/admin/statuses/01F8MH75CBF9JFX4ZAD54N0W0R","published":"2021-10-20T11:36:45Z","replies":{"first":{"id":"http://localhost:8080/users/admin/statuses/01F8MH75CBF9JFX4ZAD54N0W0R/replies?page=true","next":"http://localhost:8080/users/admin/statuses/01F8MH75CBF9JFX4ZAD54N0W0R/replies?only_other_accounts=false\u0026page=true","partOf":"http://localhost:8080/users/admin/statuses/01F8MH75CBF9JFX4ZAD54N0W0R/replies","type":"CollectionPage"},"id":"http://localhost:8080/users/admin/statuses/01F8MH75CBF9JFX4ZAD54N0W0R/replies","type":"Collection"},"sensitive":false,"summary":"","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","updated":"2021-09-20T10:40:37Z"},"to":"https://www.w3.org/ns/activitystreams#Public","type":"Note","url":"http://localhost:8080/@admin/statuses/01F8MH75CBF9JFX4ZAD54N0W0R"}`, trimmed)
 }
 
 func (suite *InternalToASTestSuite) TestStatusToASWithMentions() {