further cleanup

packages/backend/assets/robots.txt

@@ -1,4 +1,14 @@
-user-agent: *
-allow: /
+User-agent: *
+Allow: /
 
-# todo: sitemap
+# Uncomment the following to block CommonCrawl
+#
+# User-agent: CCBot
+# User-agent: CCBot/2.0
+# User-agent: CCBot/3.1
+# Disallow: /
+
+# Uncomment the following to block ChatGPT
+#
+# User-agent: GPTBot
+# Disallow: /

packages/backend/src/server/activitypub.ts

@@ -33,6 +33,8 @@ import Following from "./activitypub/following.js";
 import Followers from "./activitypub/followers.js";
 import Outbox, { packActivity } from "./activitypub/outbox.js";
 import { serverLogger } from "./index.js";
+import { parseScyllaNote, prepared, scyllaClient } from "@/db/scylla.js";
+import type { Note } from "@/models/entities/note.js";
 
 // Init router
 const router = new Router();
@@ -87,13 +89,32 @@ router.get("/notes/:note", async (ctx, next) => {
 		return;
 	}
 
-	const note = await Notes.findOneBy({
-		id: ctx.params.note,
-		visibility: In(["public" as const, "home" as const, "followers" as const]),
-		localOnly: false,
-	});
+	let note: Note | null = null;
+	const validVisibilities = ["public", "home", "followers"];
+	if (scyllaClient) {
+		const result = await scyllaClient.execute(
+			prepared.note.select.byId,
+			[ctx.params.note],
+			{ prepare: true },
+		);
+		if (result.rowLength > 0) {
+			const candidate = parseScyllaNote(result.first());
+			if (
+				!candidate.localOnly &&
+				validVisibilities.includes(candidate.visibility)
+			) {
+				note = candidate;
+			}
+		}
+	} else {
+		note = await Notes.findOneBy({
+			id: ctx.params.note,
+			visibility: In(validVisibilities),
+			localOnly: false,
+		});
+	}
 
-	if (note == null) {
+	if (!note) {
 		ctx.status = 404;
 		return;
 	}
@@ -158,14 +179,34 @@ router.get("/notes/:note/activity", async (ctx) => {
 		return;
 	}
 
-	const note = await Notes.findOneBy({
-		id: ctx.params.note,
-		userHost: IsNull(),
-		visibility: In(["public" as const, "home" as const]),
-		localOnly: false,
-	});
+	let note: Note | null = null;
+	const validVisibilities = ["public", "home"];
+	if (scyllaClient) {
+		const result = await scyllaClient.execute(
+			prepared.note.select.byId,
+			[ctx.params.note],
+			{ prepare: true },
+		);
+		if (result.rowLength > 0) {
+			const candidate = parseScyllaNote(result.first());
+			if (
+				!candidate.userHost &&
+				!candidate.localOnly &&
+				validVisibilities.includes(candidate.visibility)
+			) {
+				note = candidate;
+			}
+		}
+	} else {
+		note = await Notes.findOneBy({
+			id: ctx.params.note,
+			userHost: IsNull(),
+			visibility: In(validVisibilities),
+			localOnly: false,
+		});
+	}
 
-	if (note == null) {
+	if (!note) {
 		ctx.status = 404;
 		return;
 	}

packages/backend/src/server/activitypub/featured.ts

@@ -8,6 +8,8 @@ import { checkFetch } from "@/remote/activitypub/check-fetch.js";
 import { fetchMeta } from "@/misc/fetch-meta.js";
 import { setResponseType } from "../activitypub.js";
 import type Router from "@koa/router";
+import { parseScyllaNote, prepared, scyllaClient } from "@/db/scylla.js";
+import { Note } from "@/models/entities/note.js";
 
 export default async (ctx: Router.RouterContext) => {
 	const verify = await checkFetch(ctx.req);
@@ -33,9 +35,17 @@ export default async (ctx: Router.RouterContext) => {
 		order: { id: "DESC" },
 	});
 
-	const pinnedNotes = await Promise.all(
-		pinings.map((pining) => Notes.findOneByOrFail({ id: pining.noteId })),
-	);
+	let pinnedNotes: Note[] = [];
+	if (scyllaClient) {
+		const noteIds = pinings.map(({ noteId }) => noteId);
+		pinnedNotes = await scyllaClient
+			.execute(prepared.note.select.byIds, [noteIds], { prepare: true })
+			.then((result) => result.rows.map(parseScyllaNote));
+	} else {
+		pinnedNotes = await Promise.all(
+			pinings.map((pining) => Notes.findOneByOrFail({ id: pining.noteId })),
+		);
+	}
 
 	const renderedNotes = await Promise.all(
 		pinnedNotes.map((note) => renderNote(note)),

packages/backend/src/server/activitypub/outbox.ts

@@ -15,6 +15,7 @@ import { fetchMeta } from "@/misc/fetch-meta.js";
 import { makePaginationQuery } from "../api/common/make-pagination-query.js";
 import { setResponseType } from "../activitypub.js";
 import type Router from "@koa/router";
+import { parseScyllaNote, prepared, scyllaClient } from "@/db/scylla.js";
 
 export default async (ctx: Router.RouterContext) => {
 	const verify = await checkFetch(ctx.req);
@@ -136,7 +137,25 @@ export async function packActivity(note: Note): Promise<any> {
 		!note.hasPoll &&
 		(note.fileIds == null || note.fileIds.length === 0)
 	) {
-		const renote = await Notes.findOneByOrFail({ id: note.renoteId });
+		let renote: Note | null = null;
+
+		if (scyllaClient) {
+			const result = await scyllaClient.execute(
+				prepared.note.select.byId,
+				[note.renoteId],
+				{ prepare: true },
+			);
+			if (result.rowLength > 0) {
+				renote = parseScyllaNote(result.first());
+			}
+		} else {
+			renote = await Notes.findOneBy({ id: note.renoteId });
+		}
+
+		if (!renote) {
+			throw new Error("Renote not found");
+		}
+
 		return renderAnnounce(
 			renote.uri ? renote.uri : `${config.url}/notes/${renote.id}`,
 			note,

packages/backend/src/server/api/endpoints/users/get-frequently-replied-users.ts

@@ -4,6 +4,7 @@ import { Notes, Users } from "@/models/index.js";
 import define from "../../define.js";
 import { ApiError } from "../../error.js";
 import { getUser } from "../../common/getters.js";
+import { scyllaClient } from "@/db/scylla.js";
 
 export const meta = {
 	tags: ["users"],
@@ -64,6 +65,10 @@ export default define(meta, paramDef, async (ps, me) => {
 		throw e;
 	});
 
+	if (scyllaClient) {
+		return [];
+	}
+
 	// Fetch recent notes
 	const recentNotes = await Notes.find({
 		where: {

packages/backend/src/server/web/feed.ts

@@ -3,6 +3,8 @@ import { In, IsNull } from "typeorm";
 import config from "@/config/index.js";
 import type { User } from "@/models/entities/user.js";
 import { Notes, DriveFiles, UserProfiles, Users } from "@/models/index.js";
+import { parseScyllaNote, prepared, scyllaClient } from "@/db/scylla.js";
+import type { Note } from "@/models/entities/note.js";
 
 export default async function (
 	user: User,
@@ -146,17 +148,35 @@ export default async function (
 		return outstr;
 	}
 
-	async function findById(id) {
+	async function findById(id: string) {
 		let text = "";
-		let next = null;
-		const findings = await Notes.findOneBy({
-			id: id,
-			visibility: In(["public", "home"]),
-		});
-		if (findings) {
-			text += `<hr>`;
-			text += await noteToString(findings);
-			next = findings.renoteId ? findings.renoteId : findings.replyId;
+		let next: string | null = null;
+		let note: Note | null = null;
+		const validVisibilities = ["public", "home"];
+
+		if (scyllaClient) {
+			const result = await scyllaClient.execute(
+				prepared.note.select.byId,
+				[id],
+				{ prepare: true },
+			);
+			if (result.rowLength > 0) {
+				const candidate = parseScyllaNote(result.first());
+				if (validVisibilities.includes(candidate.visibility)) {
+					note = candidate;
+				}
+			}
+		} else {
+			note = await Notes.findOneBy({
+				id: id,
+				visibility: In(validVisibilities),
+			});
+		}
+
+		if (note) {
+			text += "<hr>";
+			text += await noteToString(note);
+			next = note.renoteId ? note.renoteId : note.replyId;
 		}
 		return { text, next };
 	}

packages/backend/src/services/i/pin.ts

@@ -78,7 +78,7 @@ export async function addPinned(
 }
 
 /**
- * 指定した投稿のピン留めを解除します
+ * Remove pinned note
  * @param user
  * @param noteId
  */
@@ -87,12 +87,27 @@ export async function removePinned(
 	noteId: Note["id"],
 ) {
 	// Fetch unpinee
-	const note = await Notes.findOneBy({
-		id: noteId,
-		userId: user.id,
-	});
+	let note: Note | null = null;
+	if (scyllaClient) {
+		const result = await scyllaClient.execute(
+			prepared.note.select.byId,
+			[noteId],
+			{ prepare: true },
+		);
+		if (result.rowLength > 0) {
+			const candidate = parseScyllaNote(result.first());
+			if (candidate.userId === user.id) {
+				note = candidate;
+			}
+		}
+	} else {
+		note = await Notes.findOneBy({
+			id: noteId,
+			userId: user.id,
+		});
+	}
 
-	if (note == null) {
+	if (!note) {
 		throw new IdentifiableError(
 			"b302d4cf-c050-400a-bbb3-be208681f40c",
 			"No such note.",

packages/backend/src/services/note/polls/update.ts

@@ -5,13 +5,31 @@ import { Users, Notes } from "@/models/index.js";
 import type { Note } from "@/models/entities/note.js";
 import { deliverToFollowers } from "@/remote/activitypub/deliver-manager.js";
 import { deliverToRelays } from "../../relay.js";
+import { parseScyllaNote, prepared, scyllaClient } from "@/db/scylla.js";
+import { userByIdCache } from "@/services/user-cache.js";
 
 export async function deliverQuestionUpdate(noteId: Note["id"]) {
-	const note = await Notes.findOneBy({ id: noteId });
-	if (note == null) throw new Error("note not found");
+	let note: Note | null = null;
+	if (scyllaClient) {
+		const result = await scyllaClient.execute(
+			prepared.note.select.byId,
+			[noteId],
+			{ prepare: true },
+		);
+		if (result.rowLength > 0) {
+			note = parseScyllaNote(result.first());
+		}
+	} else {
+		note = await Notes.findOneBy({ id: noteId });
+	}
+	if (!note) throw new Error("note not found");
 
-	const user = await Users.findOneBy({ id: note.userId });
-	if (user == null) throw new Error("note not found");
+	const user = await userByIdCache.fetchMaybe(note.userId, () =>
+		Users.findOneBy({ id: (note as Note).userId }).then(
+			(user) => user ?? undefined,
+		),
+	);
+	if (!user) throw new Error("note not found");
 
 	if (Users.isLocalUser(user)) {
 		const content = renderActivity(