diff --git a/docs/federation/posts.md b/docs/federation/posts.md index b03bfe40a..345834a23 100644 --- a/docs/federation/posts.md +++ b/docs/federation/posts.md @@ -47,6 +47,60 @@ The `href` URL provided by GoToSocial in outgoing tags points to a web URL that GoToSocial makes no guarantees whatsoever about what the content of the given `text/html` will be, and remote servers should not interpret the URL as a canonical ActivityPub ID/URI property. The `href` URL is provided merely as an endpoint which *might* contain more information about the given hashtag. +## Emojis + +GoToSocial uses the `http://joinmastodon.org/ns#Emoji` type to allow users to add custom emoji to their posts. + +For example: + +```json +{ + "@context": [ + "https://gotosocial.org/ns", + "https://www.w3.org/ns/activitystreams", + { + "Emoji": "toot:Emoji", + "sensitive": "as:sensitive", + "toot": "http://joinmastodon.org/ns#" + } + ], + "type": "Note", + "content": "
here's a stinky creature -> :shocked_pikachu:
", + [...], + "tag": { + "icon": { + "mediaType": "image/png", + "type": "Image", + "url": "https://example.org/fileserver/01BPSX2MKCRVMD4YN4D71G9CP5/emoji/original/01AZY1Y5YQD6TREB5W50HGTCSZ.png" + }, + "id": "https://example.org/emoji/01AZY1Y5YQD6TREB5W50HGTCSZ", + "name": ":shocked_pikachu:", + "type": "Emoji", + "updated": "2022-11-17T11:36:05Z" + } + [...] +}` +``` + +The text `:shocked_pikachu:` in the `content` of the above `Note` should be replaced by clients with a small (inline) version of the emoji image, when rendering the `Note` and displaying it to users. + +The `updated` and `icon.url` properties of the emoji can be used by remote instances to determine whether their representation of the GoToSocial emoji image is up to date. + +The `Emoji` can also be dereferenced at its `id` URI if necessary, so that remotes can check whether their cached version of the emoji metadata is up to date. + +By default, GoToSocial sets a 50kb limit on the size of emoji images that can be uploaded and sent out, and a 100kb limit on the size of emoji images that can be federated in, though both of these settings are configurable by users. + +GoToSocial can send and receive emoji images of the type `image/png`, `image/jpeg`, `image/gif`, and `image/webp`. + +!!! info + Note that the `tag` property can be either an array of objects, or a single object. + +### `null` / empty `id` property + +Some server softwares like Akkoma include emojis as [anonymous objects](https://www.w3.org/TR/activitypub/#obj-id) on statuses. That is, they set the `id` property to the value `null` to indicate that the emoji cannot be dereferenced at any specific endpoint. + +When receiving such emojis, GoToSocial will generate a dummy id for that emoji in its database in the form `https://[host]/dummy_emoji_path?shortcode=[shortcode]`, for example, `https://example.org/dummy_emoji_path?shortcode=shocked_pikachu`. + ## Mentions GoToSocial users can Mention other users in their posts, using the common `@[username]@[domain]` format. For example, if a GoToSocial user wanted to mention user `someone` on instance `example.org`, they could do this by including `@someone@example.org` in their post somewhere. diff --git a/internal/ap/extract.go b/internal/ap/extract.go index 543ee8dca..02b72591c 100644 --- a/internal/ap/extract.go +++ b/internal/ap/extract.go @@ -805,7 +805,7 @@ func extractHashtag(i Hashtaggable) (*gtsmodel.Tag, error) { // ExtractEmojis extracts a slice of minimal gtsmodel.Emojis // from a WithTag. If an entry in the WithTag is not an emoji, // it will be quietly ignored. -func ExtractEmojis(i WithTag) ([]*gtsmodel.Emoji, error) { +func ExtractEmojis(i WithTag, host string) ([]*gtsmodel.Emoji, error) { tagsProp := i.GetActivityStreamsTag() if tagsProp == nil { return nil, nil @@ -827,7 +827,7 @@ func ExtractEmojis(i WithTag) ([]*gtsmodel.Emoji, error) { continue } - emoji, err := ExtractEmoji(tootEmoji) + emoji, err := ExtractEmoji(tootEmoji, host) if err != nil { return nil, err } @@ -844,41 +844,57 @@ func ExtractEmojis(i WithTag) ([]*gtsmodel.Emoji, error) { return emojis, nil } -// ExtractEmoji extracts a minimal gtsmodel.Emoji -// from the given Emojiable. -func ExtractEmoji(i Emojiable) (*gtsmodel.Emoji, error) { - // Use AP ID as emoji URI. - idProp := i.GetJSONLDId() - if idProp == nil || !idProp.IsIRI() { - return nil, gtserror.New("no id for emoji") - } - uri := idProp.GetIRI() - - // Extract emoji last updated time (optional). - var updatedAt time.Time - updatedProp := i.GetActivityStreamsUpdated() - if updatedProp != nil && updatedProp.IsXMLSchemaDateTime() { - updatedAt = updatedProp.Get() - } - - // Extract emoji name aka shortcode. - name := ExtractName(i) +// ExtractEmoji extracts a minimal gtsmodel.Emoji from +// the given Emojiable. The host (eg., "example.org") +// of the emoji should be passed in as well, so that a +// dummy URI for the emoji can be constructed in case +// there's no id property or id property is null. +// +// https://github.com/superseriousbusiness/gotosocial/issues/3384) +func ExtractEmoji( + e Emojiable, + host string, +) (*gtsmodel.Emoji, error) { + // Extract emoji name, + // eg., ":some_emoji". + name := ExtractName(e) if name == "" { return nil, gtserror.New("name prop empty") } - shortcode := strings.Trim(name, ":") + name = strings.TrimSpace(name) - // Extract emoji image URL from Icon property. - imageRemoteURL, err := ExtractIconURI(i) + // Derive shortcode from + // name, eg., "some_emoji". + shortcode := strings.Trim(name, ":") + shortcode = strings.TrimSpace(shortcode) + + // Extract emoji image + // URL from Icon property. + imageRemoteURL, err := ExtractIconURI(e) if err != nil { return nil, gtserror.New("no url for emoji image") } imageRemoteURLStr := imageRemoteURL.String() + // Use AP ID as emoji URI, or fall + // back to dummy URI if not present. + uri := GetJSONLDId(e) + if uri == nil { + // No ID was set, + // construct dummy. + uri, err = url.Parse( + // eg., https://example.org/dummy_emoji_path?shortcode=some_emoji + "https://" + host + "/dummy_emoji_path?shortcode=" + url.QueryEscape(shortcode), + ) + if err != nil { + return nil, gtserror.Newf("error constructing dummy path: %w", err) + } + } + return >smodel.Emoji{ - UpdatedAt: updatedAt, + UpdatedAt: GetUpdated(e), Shortcode: shortcode, - Domain: uri.Host, + Domain: host, ImageRemoteURL: imageRemoteURLStr, URI: uri.String(), Disabled: new(bool), // Assume false by default. diff --git a/internal/ap/extractemojis_test.go b/internal/ap/extractemojis_test.go new file mode 100644 index 000000000..69406f322 --- /dev/null +++ b/internal/ap/extractemojis_test.go @@ -0,0 +1,255 @@ +// GoToSocial +// Copyright (C) GoToSocial Authors admin@gotosocial.org +// SPDX-License-Identifier: AGPL-3.0-or-later +// +// 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, seei hear that the GoToSocial devs are anti-capitalists and even shocked gasp communists :shocked_pikachu: totally unreasonable people
", + "id": "https://example.org/users/tobi/statuses/01HV11D2BS7M94ZS499VBW7RX5", + "tag": { + "icon": { + "mediaType": "image/png", + "type": "Image", + "url": "https://example.org/fileserver/01BPSX2MKCRVMD4YN4D71G9CP5/emoji/original/01AZY1Y5YQD6TREB5W50HGTCSZ.png" + }, + "id": "https://example.org/emoji/01AZY1Y5YQD6TREB5W50HGTCSZ", + "name": ":shocked_pikachu:", + "type": "Emoji", + "updated": "2022-11-17T11:36:05Z" + }, + "to": "https://www.w3.org/ns/activitystreams#Public", + "type": "Note" +}` + + statusable, err := ap.ResolveStatusable( + context.Background(), + io.NopCloser(bytes.NewBufferString(noteWithEmojis)), + ) + if err != nil { + suite.FailNow(err.Error()) + } + + emojis, err := ap.ExtractEmojis(statusable, "example.org") + if err != nil { + suite.FailNow(err.Error()) + } + + if l := len(emojis); l != 1 { + suite.FailNow("", "expected length 1 for emojis, got %d", l) + } + + emoji := emojis[0] + suite.Equal("shocked_pikachu", emoji.Shortcode) + suite.Equal("example.org", emoji.Domain) + suite.Equal("https://example.org/fileserver/01BPSX2MKCRVMD4YN4D71G9CP5/emoji/original/01AZY1Y5YQD6TREB5W50HGTCSZ.png", emoji.ImageRemoteURL) + suite.False(*emoji.Disabled) + suite.Equal("https://example.org/emoji/01AZY1Y5YQD6TREB5W50HGTCSZ", emoji.URI) + suite.False(*emoji.VisibleInPicker) +} + +func (suite *ExtractEmojisTestSuite) TestExtractEmojisNoID() { + const noteWithEmojis = `{ + "@context": [ + "https://gotosocial.org/ns", + "https://www.w3.org/ns/activitystreams", + { + "Emoji": "toot:Emoji", + "sensitive": "as:sensitive", + "toot": "http://joinmastodon.org/ns#" + } + ], + "attributedTo": "https://example.org/users/tobi", + "content": "i hear that the GoToSocial devs are anti-capitalists and even shocked gasp communists :shocked_pikachu: totally unreasonable people
", + "id": "https://example.org/users/tobi/statuses/01HV11D2BS7M94ZS499VBW7RX5", + "tag": { + "icon": { + "mediaType": "image/png", + "type": "Image", + "url": "https://example.org/fileserver/01BPSX2MKCRVMD4YN4D71G9CP5/emoji/original/01AZY1Y5YQD6TREB5W50HGTCSZ.png" + }, + "name": ":shocked_pikachu:", + "type": "Emoji", + "updated": "2022-11-17T11:36:05Z" + }, + "to": "https://www.w3.org/ns/activitystreams#Public", + "type": "Note" +}` + + statusable, err := ap.ResolveStatusable( + context.Background(), + io.NopCloser(bytes.NewBufferString(noteWithEmojis)), + ) + if err != nil { + suite.FailNow(err.Error()) + } + + emojis, err := ap.ExtractEmojis(statusable, "example.org") + if err != nil { + suite.FailNow(err.Error()) + } + + if l := len(emojis); l != 1 { + suite.FailNow("", "expected length 1 for emojis, got %d", l) + } + + emoji := emojis[0] + suite.Equal("shocked_pikachu", emoji.Shortcode) + suite.Equal("example.org", emoji.Domain) + suite.Equal("https://example.org/fileserver/01BPSX2MKCRVMD4YN4D71G9CP5/emoji/original/01AZY1Y5YQD6TREB5W50HGTCSZ.png", emoji.ImageRemoteURL) + suite.False(*emoji.Disabled) + suite.Equal("https://example.org/dummy_emoji_path?shortcode=shocked_pikachu", emoji.URI) + suite.False(*emoji.VisibleInPicker) +} + +func (suite *ExtractEmojisTestSuite) TestExtractEmojisNullID() { + const noteWithEmojis = `{ + "@context": [ + "https://gotosocial.org/ns", + "https://www.w3.org/ns/activitystreams", + { + "Emoji": "toot:Emoji", + "sensitive": "as:sensitive", + "toot": "http://joinmastodon.org/ns#" + } + ], + "attributedTo": "https://example.org/users/tobi", + "content": "i hear that the GoToSocial devs are anti-capitalists and even shocked gasp communists :shocked_pikachu: totally unreasonable people
", + "id": "https://example.org/users/tobi/statuses/01HV11D2BS7M94ZS499VBW7RX5", + "tag": { + "icon": { + "mediaType": "image/png", + "type": "Image", + "url": "https://example.org/fileserver/01BPSX2MKCRVMD4YN4D71G9CP5/emoji/original/01AZY1Y5YQD6TREB5W50HGTCSZ.png" + }, + "id": null, + "name": ":shocked_pikachu:", + "type": "Emoji", + "updated": "2022-11-17T11:36:05Z" + }, + "to": "https://www.w3.org/ns/activitystreams#Public", + "type": "Note" +}` + + statusable, err := ap.ResolveStatusable( + context.Background(), + io.NopCloser(bytes.NewBufferString(noteWithEmojis)), + ) + if err != nil { + suite.FailNow(err.Error()) + } + + emojis, err := ap.ExtractEmojis(statusable, "example.org") + if err != nil { + suite.FailNow(err.Error()) + } + + if l := len(emojis); l != 1 { + suite.FailNow("", "expected length 1 for emojis, got %d", l) + } + + emoji := emojis[0] + suite.Equal("shocked_pikachu", emoji.Shortcode) + suite.Equal("example.org", emoji.Domain) + suite.Equal("https://example.org/fileserver/01BPSX2MKCRVMD4YN4D71G9CP5/emoji/original/01AZY1Y5YQD6TREB5W50HGTCSZ.png", emoji.ImageRemoteURL) + suite.False(*emoji.Disabled) + suite.Equal("https://example.org/dummy_emoji_path?shortcode=shocked_pikachu", emoji.URI) + suite.False(*emoji.VisibleInPicker) +} + +func (suite *ExtractEmojisTestSuite) TestExtractEmojisEmptyID() { + const noteWithEmojis = `{ + "@context": [ + "https://gotosocial.org/ns", + "https://www.w3.org/ns/activitystreams", + { + "Emoji": "toot:Emoji", + "sensitive": "as:sensitive", + "toot": "http://joinmastodon.org/ns#" + } + ], + "attributedTo": "https://example.org/users/tobi", + "content": "i hear that the GoToSocial devs are anti-capitalists and even shocked gasp communists :shocked_pikachu: totally unreasonable people
", + "id": "https://example.org/users/tobi/statuses/01HV11D2BS7M94ZS499VBW7RX5", + "tag": { + "icon": { + "mediaType": "image/png", + "type": "Image", + "url": "https://example.org/fileserver/01BPSX2MKCRVMD4YN4D71G9CP5/emoji/original/01AZY1Y5YQD6TREB5W50HGTCSZ.png" + }, + "id": "", + "name": ":shocked_pikachu:", + "type": "Emoji", + "updated": "2022-11-17T11:36:05Z" + }, + "to": "https://www.w3.org/ns/activitystreams#Public", + "type": "Note" +}` + + statusable, err := ap.ResolveStatusable( + context.Background(), + io.NopCloser(bytes.NewBufferString(noteWithEmojis)), + ) + if err != nil { + suite.FailNow(err.Error()) + } + + emojis, err := ap.ExtractEmojis(statusable, "example.org") + if err != nil { + suite.FailNow(err.Error()) + } + + if l := len(emojis); l != 1 { + suite.FailNow("", "expected length 1 for emojis, got %d", l) + } + + emoji := emojis[0] + suite.Equal("shocked_pikachu", emoji.Shortcode) + suite.Equal("example.org", emoji.Domain) + suite.Equal("https://example.org/fileserver/01BPSX2MKCRVMD4YN4D71G9CP5/emoji/original/01AZY1Y5YQD6TREB5W50HGTCSZ.png", emoji.ImageRemoteURL) + suite.False(*emoji.Disabled) + suite.Equal("https://example.org/dummy_emoji_path?shortcode=shocked_pikachu", emoji.URI) + suite.False(*emoji.VisibleInPicker) +} + +func TestExtractEmojisTestSuite(t *testing.T) { + suite.Run(t, &ExtractEmojisTestSuite{}) +} diff --git a/internal/typeutils/astointernal.go b/internal/typeutils/astointernal.go index 0ad9a6ff7..16aa430a3 100644 --- a/internal/typeutils/astointernal.go +++ b/internal/typeutils/astointernal.go @@ -149,7 +149,7 @@ func (c *Converter) ASRepresentationToAccount( } // account emojis (used in bio, display name, fields) - acct.Emojis, err = ap.ExtractEmojis(accountable) + acct.Emojis, err = ap.ExtractEmojis(accountable, acct.Domain) if err != nil { log.Warnf(ctx, "error(s) extracting account emojis for %s: %v", uri, err) } @@ -325,7 +325,7 @@ func (c *Converter) ASStatusToStatus(ctx context.Context, statusable ap.Statusab // status.Emojis // // Custom emojis for later dereferencing. - if emojis, err := ap.ExtractEmojis(statusable); err != nil { + if emojis, err := ap.ExtractEmojis(statusable, uriObj.Host); err != nil { log.Warnf(ctx, "error extracting emojis for %s: %v", uri, err) } else { status.Emojis = emojis