m->d replies: support replying to edits & spoilers

d2m/converters/message-to-event.test.js

@@ -363,7 +363,7 @@ test("message2event: thread start message reference", async t => {
 		api: {
 			getEvent: mockGetEvent(t, "!PnyBKvUBOhjuCucEfk:cadence.moe", "$FchUVylsOfmmbj-VwEs5Z9kY49_dt2zd0vWfylzy5Yo", {
 				"type": "m.room.message",
-				"sender": "@_ooye_cadence:cadence.moe",
+				"sender": "@_ooye_kyuugryphon:cadence.moe",
 				"content": {
 					"m.mentions": {},
 					"msgtype": "m.text",

m2d/converters/event-to-message.js

@@ -227,7 +227,7 @@ async function eventToMessage(event, guild, di) {
 		await (async () => {
 			const repliedToEventId = event.content["m.relates_to"]?.["m.in_reply_to"]?.event_id
 			if (!repliedToEventId) return
-			const repliedToEvent = await di.api.getEvent(event.room_id, repliedToEventId)
+			let repliedToEvent = await di.api.getEvent(event.room_id, repliedToEventId)
 			if (!repliedToEvent) return
 			const row = db.prepare("SELECT channel_id, message_id FROM event_message INNER JOIN message_channel USING (message_id) WHERE event_id = ? ORDER BY part").get(repliedToEventId)
 			if (row) {
@@ -243,6 +243,11 @@ async function eventToMessage(event, guild, di) {
 			} else {
 				replyLine += `Ⓜ️**${senderName}**`
 			}
+			// If the event has been edited, the homeserver will include the relation in `unsigned`.
+			if (repliedToEvent.unsigned?.["m.relations"]?.["m.replace"]?.content?.["m.new_content"]) {
+				repliedToEvent = repliedToEvent.unsigned["m.relations"]["m.replace"] // Note: this changes which event_id is in repliedToEvent.
+				repliedToEvent.content = repliedToEvent.content["m.new_content"]
+			}
 			let contentPreview
 			const fileReplyContentAlternative =
 				( repliedToEvent.content.msgtype === "m.image" ? "🖼️"
@@ -254,7 +259,12 @@ async function eventToMessage(event, guild, di) {
 				contentPreview = " " + fileReplyContentAlternative
 			} else {
 				const repliedToContent = repliedToEvent.content.formatted_body || repliedToEvent.content.body
-				const contentPreviewChunks = chunk(repliedToContent.replace(/.*<\/mx-reply>/, "").replace(/.*?<\/blockquote>/, "").replace(/(?:\n|<br>)+/g, " ").replace(/<[^>]+>/g, ""), 50)
+				const contentPreviewChunks = chunk(
+					repliedToContent.replace(/.*<\/mx-reply>/, "") // Remove everything before replies, so just use the actual message body
+					.replace(/.*?<\/blockquote>/, "") // If the message starts with a blockquote, don't count it and use the message body afterwards
+					.replace(/(?:\n|<br>)+/g, " ") // Should all be on one line
+					.replace(/<span [^>]*data-mx-spoiler\b[^>]*>.*?<\/span>/g, "[spoiler]") // Good enough method of removing spoiler content. (I don't want to break out the HTML parser unless I have to.)
+					.replace(/<[^>]+>/g, ""), 50) // Completely strip all other formatting.
 				contentPreview = ":\n> "
 				contentPreview += contentPreviewChunks.length > 1 ? contentPreviewChunks[0] + "..." : contentPreviewChunks[0]
 			}

m2d/converters/event-to-message.test.js

@@ -595,6 +595,82 @@ test("event2message: rich reply to a sim user", async t => {
 	)
 })
 
+test("event2message: rich reply to an already-edited message will quote the new message content", async t => {
+	t.deepEqual(
+		await eventToMessage({
+			"type": "m.room.message",
+			"sender": "@cadence:cadence.moe",
+			"content": {
+				"msgtype": "m.text",
+				"body": "> <@_ooye_kyuugryphon:cadence.moe> this is the new content. heya!\n\nhiiiii....",
+				"format": "org.matrix.custom.html",
+				"formatted_body": "<mx-reply><blockquote><a href=\"https://matrix.to/#/!fGgIymcYWOqjbSRUdV:cadence.moe/$DSQvWxOBB2DYaei6b83-fb33dQGYt5LJd_s8Nl2a43Q?via=cadence.moe&via=feather.onl\">In reply to</a> <a href=\"https://matrix.to/#/@_ooye_kyuugryphon:cadence.moe\">@_ooye_kyuugryphon:cadence.moe</a><br>this is the new content. heya!</blockquote></mx-reply>hiiiii....",
+				"m.relates_to": {
+					"m.in_reply_to": {
+						"event_id": "$DSQvWxOBB2DYaei6b83-fb33dQGYt5LJd_s8Nl2a43Q"
+					}
+				}
+			},
+			"origin_server_ts": 1693029683016,
+			"unsigned": {
+				"age": 91,
+				"transaction_id": "m1693029682894.510"
+			},
+			"event_id": "$v_Gtr-bzv9IVlSLBO5DstzwmiDd-GSFaNfHX66IupV8",
+			"room_id": "!fGgIymcYWOqjbSRUdV:cadence.moe"
+		}, data.guild.general, {
+			api: {
+				getEvent: mockGetEvent(t, "!fGgIymcYWOqjbSRUdV:cadence.moe", "$DSQvWxOBB2DYaei6b83-fb33dQGYt5LJd_s8Nl2a43Q", {
+					type: "m.room.message",
+					room_id: "!fGgIymcYWOqjbSRUdV:cadence.moe",
+					sender: "@_ooye_kyuugryphon:cadence.moe",
+					content: {
+						"m.mentions": {},
+						msgtype: "m.text",
+						body: "this is the old content. don't use this!"
+					},
+					unsigned: {
+						"m.relations": {
+							"m.replace": {
+								type: "m.room.message",
+								room_id: "!fGgIymcYWOqjbSRUdV:cadence.moe",
+								sender: "@_ooye_kyuugryphon:cadence.moe",
+								content: {
+									"m.mentions": {},
+									msgtype: "m.text",
+									body: "* this is the new content. heya!",
+									"m.new_content": {
+										"m.mentions": {},
+										msgtype: "m.text",
+										body: "this is the new content. heya!"
+									},
+									"m.relates_to": {
+										rel_type: "m.replace",
+										event_id: "$DSQvWxOBB2DYaei6b83-fb33dQGYt5LJd_s8Nl2a43Q"
+									}
+								},
+								event_id: "$JOrl8ycWpo7NIAxZ4u-VJmANVrZFBF41LXyp30y8VvU",
+								user_id: "@_ooye_kyuugryphon:cadence.moe",
+							}
+						}
+					}
+				})
+			}
+		}),
+		{
+			messagesToDelete: [],
+			messagesToEdit: [],
+			messagesToSend: [{
+				username: "cadence [they]",
+				content: "> <:L1:1144820033948762203><:L2:1144820084079087647><@111604486476181504>:"
+					+ "\n> this is the new content. heya!"
+					+ "\nhiiiii....",
+				avatar_url: "https://matrix.cadence.moe/_matrix/media/r0/download/cadence.moe/azCAhThKTojXSZJRoWwZmhvU"
+			}]
+		}
+	)
+})
+
 test("event2message: should avoid using blockquote contents as reply preview in rich reply to a sim user", async t => {
 	t.deepEqual(
 		await eventToMessage({
@@ -642,8 +718,6 @@ test("event2message: should avoid using blockquote contents as reply preview in
 	)
 })
 
-
-
 test("event2message: editing a rich reply to a sim user", async t => {
 	const eventsFetched = []
 	t.deepEqual(
@@ -1050,6 +1124,58 @@ test("event2message: rich reply to an image", async t => {
 	)
 })
 
+test("event2message: rich reply to a spoiler should ensure the spoiler is hidden", async t => {
+	t.deepEqual(
+		await eventToMessage({
+			"type": "m.room.message",
+			"sender": "@cadence:cadence.moe",
+			"content": {
+				"msgtype": "m.text",
+				"body": "> <@cadence:cadence.moe> ||zoe kills a 5 letter noun at the end. don't tell anybody|| cw crossword spoilers you'll never believe\n\nomg NO WAY!!",
+				"format": "org.matrix.custom.html",
+				"formatted_body": "<mx-reply><blockquote><a href=\"https://matrix.to/#/!fGgIymcYWOqjbSRUdV:cadence.moe/$Fxy8SMoJuTduwReVkHZ1uHif9EuvNx36Hg79cltiA04?via=cadence.moe&via=feather.onl\">In reply to</a> <a href=\"https://matrix.to/#/@cadence:cadence.moe\">@cadence:cadence.moe</a><br><span data-mx-spoiler=\"\">zoe kills a 5 letter noun at the end. don't tell anybody</span> cw crossword spoilers you'll never believe</blockquote></mx-reply>omg NO WAY!!",
+				"m.relates_to": {
+					"m.in_reply_to": {
+						"event_id": "$Fxy8SMoJuTduwReVkHZ1uHif9EuvNx36Hg79cltiA04"
+					}
+				}
+			},
+			"origin_server_ts": 1693037401693,
+			"unsigned": {
+				"age": 381,
+				"transaction_id": "m1693037401592.521"
+			},
+			"event_id": "$v_Gtr-bzv9IVlSLBO5DstzwmiDd-GSFaNfHX66IupV8",
+			"room_id": "!fGgIymcYWOqjbSRUdV:cadence.moe"
+		 }, data.guild.general, {
+			api: {
+				getEvent: mockGetEvent(t, "!fGgIymcYWOqjbSRUdV:cadence.moe", "$Fxy8SMoJuTduwReVkHZ1uHif9EuvNx36Hg79cltiA04", {
+					type: "m.room.message",
+					sender: "@_ooye_kyuugryphon:cadence.moe",
+					content: {
+						"m.mentions": {},
+						msgtype: "m.text",
+						body: "||zoe kills a 5 letter noun at the end. don't tell anybody|| cw crossword spoilers you'll never believe",
+						format: "org.matrix.custom.html",
+						formatted_body: `<span data-mx-spoiler="">zoe kills a 5 letter noun at the end. don't tell anybody</span> cw crossword spoilers you'll never believe`
+					}
+				})
+			}
+		}),
+		{
+			messagesToDelete: [],
+			messagesToEdit: [],
+			messagesToSend: [{
+				username: "cadence [they]",
+				content: "> <:L1:1144820033948762203><:L2:1144820084079087647>https://discord.com/channels/112760669178241024/687028734322147344/1144865310588014633 <@111604486476181504>:"
+					+ "\n> [spoiler] cw crossword spoilers you'll never..."
+					+ "\nomg NO WAY!!",
+				avatar_url: "https://matrix.cadence.moe/_matrix/media/r0/download/cadence.moe/azCAhThKTojXSZJRoWwZmhvU"
+			}]
+		}
+	)
+})
+
 test("event2message: with layered rich replies, the preview should only be the real text", async t => {
 	t.deepEqual(
 		await eventToMessage({