[mastodon-client] GET /timelines/home

packages/backend/src/server/api/mastodon/endpoints/status.ts

@@ -176,7 +176,7 @@ export function apiStatusMastodon(router: Router): void {
 			);
 			ctx.body = data.data;
 		} catch (e: any) {
-			console.error(e.response.data, request.params.id);
+			console.error(e.response.data, ctx.params.id);
 			ctx.status = 401;
 			ctx.body = e.response.data;
 		}
@@ -192,7 +192,6 @@ export function apiStatusMastodon(router: Router): void {
 	router.get<{ Params: { id: string } }>(
 		"/v1/statuses/:id/context",
 		async (ctx) => {
-			const accessTokens = ctx.headers.authorization;
 			try {
 				const auth = await authenticate(ctx.headers.authorization, null);
 				const user = auth[0] ?? null;

packages/backend/src/server/api/mastodon/endpoints/timeline.ts

@@ -8,6 +8,10 @@ import {
 	convertStatus,
 } from "../converters.js";
 import { convertId, IdType } from "../../index.js";
+import authenticate from "@/server/api/authenticate.js";
+import { TimelineHelpers } from "@/server/api/mastodon/helpers/timeline.js";
+import { NoteHelpers } from "@/server/api/mastodon/helpers/note.js";
+import { NoteConverter } from "@/server/api/mastodon/converters/note.js";
 
 export function limitToInt(q: ParsedUrlQuery) {
 	let object: any = q;
@@ -54,6 +58,16 @@ export function convertTimelinesArgsId(q: ParsedUrlQuery) {
 	return q;
 }
 
+export function normalizeUrlQuery(q: ParsedUrlQuery): any {
+	const dict: any = {};
+
+	for (const k in Object.keys(q)) {
+		dict[k] = Array.isArray(q[k]) ? q[k]?.at(-1) : q[k];
+	}
+
+	return dict;
+}
+
 export function apiTimelineMastodon(router: Router): void {
 	router.get("/v1/timelines/public", async (ctx, reply) => {
 		const BASE_URL = `${ctx.protocol}://${ctx.hostname}`;
@@ -98,14 +112,20 @@ export function apiTimelineMastodon(router: Router): void {
 		},
 	);
 	router.get("/v1/timelines/home", async (ctx, reply) => {
-		const BASE_URL = `${ctx.protocol}://${ctx.hostname}`;
-		const accessTokens = ctx.headers.authorization;
-		const client = getClient(BASE_URL, accessTokens);
 		try {
-			const data = await client.getHomeTimeline(
-				convertTimelinesArgsId(limitToInt(ctx.query)),
-			);
-			ctx.body = data.data.map((status) => convertStatus(status));
+			const auth = await authenticate(ctx.headers.authorization, null);
+			const user = auth[0] ?? undefined;
+
+			if (!user) {
+				ctx.status = 401;
+				return;
+			}
+
+			const args = normalizeUrlQuery(convertTimelinesArgsId(limitToInt(ctx.query)));
+			const tl = await TimelineHelpers.getHomeTimeline(user, args.max_id, args.since_id, args.min_id, args.limit)
+				.then(n => NoteConverter.encodeMany(n, user));
+
+			ctx.body = tl.map(s => convertStatus(s));
 		} catch (e: any) {
 			console.error(e);
 			console.error(e.response.data);

packages/backend/src/server/api/mastodon/helpers/timeline.ts

@@ -0,0 +1,87 @@
+import { Note } from "@/models/entities/note.js";
+import { ILocalUser } from "@/models/entities/user.js";
+import { Followings, Notes } from "@/models/index.js";
+import { makePaginationQuery } from "@/server/api/common/make-pagination-query.js";
+import { Brackets } from "typeorm";
+import { generateChannelQuery } from "@/server/api/common/generate-channel-query.js";
+import { generateRepliesQuery } from "@/server/api/common/generate-replies-query.js";
+import { generateVisibilityQuery } from "@/server/api/common/generate-visibility-query.js";
+import { generateMutedUserQuery } from "@/server/api/common/generate-muted-user-query.js";
+import { generateMutedNoteQuery } from "@/server/api/common/generate-muted-note-query.js";
+import { generateBlockedUserQuery } from "@/server/api/common/generate-block-query.js";
+import { generateMutedUserRenotesQueryForNotes } from "@/server/api/common/generated-muted-renote-query.js";
+export class TimelineHelpers {
+	public static async getHomeTimeline(user: ILocalUser, maxId?: string, sinceId?: string, minId?: string, limit: number = 20): Promise<Note[]> {
+		if (limit > 40) limit = 40;
+
+		const hasFollowing =
+			(await Followings.count({
+				where: {
+					followerId: user.id,
+				},
+				take: 1,
+			})) !== 0;
+
+		const followingQuery = Followings.createQueryBuilder("following")
+			.select("following.followeeId")
+			.where("following.followerId = :followerId", { followerId: user.id });
+
+		//FIXME respect minId
+		const query = makePaginationQuery(
+			Notes.createQueryBuilder("note"),
+			sinceId ?? minId,
+			maxId,
+		)
+		.andWhere(
+			new Brackets((qb) => {
+				qb.where("note.userId = :meId", { meId: user.id });
+				if (hasFollowing)
+					qb.orWhere(`note.userId IN (${followingQuery.getQuery()})`);
+			}),
+		)
+		.innerJoinAndSelect("note.user", "user")
+		.leftJoinAndSelect("user.avatar", "avatar")
+		.leftJoinAndSelect("user.banner", "banner")
+		.leftJoinAndSelect("note.reply", "reply")
+		.leftJoinAndSelect("note.renote", "renote")
+		.leftJoinAndSelect("reply.user", "replyUser")
+		.leftJoinAndSelect("replyUser.avatar", "replyUserAvatar")
+		.leftJoinAndSelect("replyUser.banner", "replyUserBanner")
+		.leftJoinAndSelect("renote.user", "renoteUser")
+		.leftJoinAndSelect("renoteUser.avatar", "renoteUserAvatar")
+		.leftJoinAndSelect("renoteUser.banner", "renoteUserBanner")
+		.setParameters(followingQuery.getParameters());
+
+		generateChannelQuery(query, user);
+		generateRepliesQuery(query, true, user);
+		generateVisibilityQuery(query, user);
+		generateMutedUserQuery(query, user);
+		generateMutedNoteQuery(query, user);
+		generateBlockedUserQuery(query, user);
+		generateMutedUserRenotesQueryForNotes(query, user);
+
+		query.andWhere("note.visibility != 'hidden'");
+
+		// We fetch more than requested because some may be filtered out, and if there's less than
+		// requested, the pagination stops.
+		const found = [];
+		const take = Math.floor(limit * 1.5);
+		let skip = 0;
+		try {
+			while (found.length < limit) {
+				const notes = await query.take(take).skip(skip).getMany();
+				found.push(...notes);
+				skip += take;
+				if (notes.length < take) break;
+			}
+		} catch (error) {
+			return [];
+		}
+
+		if (found.length > limit) {
+			found.length = limit;
+		}
+
+		return found;
+	}
+}