refactor mastodon API and preserve remote user agent for requests

packages/backend/src/server/api/mastodon/argsUtils.ts

@@ -0,0 +1,47 @@
+/*
+ * SPDX-FileCopyrightText: hazelnoot and other Sharkey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+// Keys taken from:
+// - https://docs.joinmastodon.org/methods/accounts/#statuses
+// - https://docs.joinmastodon.org/methods/timelines/#public
+// - https://docs.joinmastodon.org/methods/timelines/#tag
+export interface TimelineArgs {
+	max_id?: string;
+	min_id?: string;
+	since_id?: string;
+	limit?: string;
+	offset?: string;
+	local?: string;
+	pinned?: string;
+	exclude_reblogs?: string;
+	exclude_replies?: string;
+	only_media?: string;
+}
+
+// Values taken from https://docs.joinmastodon.org/client/intro/#boolean
+export function toBoolean(value: string | undefined): boolean | undefined {
+	if (!value) return undefined;
+	return !['0', 'f', 'F', 'false', 'FALSE', 'off', 'OFF'].includes(value);
+}
+
+export function toInt(value: string | undefined): number | undefined {
+	if (!value) return undefined;
+	return parseInt(value);
+}
+
+export function parseTimelineArgs(q: TimelineArgs) {
+	return {
+		max_id: q.max_id,
+		min_id: q.min_id,
+		since_id: q.since_id,
+		limit: typeof(q.limit) === 'string' ? parseInt(q.limit, 10) : undefined,
+		offset: typeof(q.offset) === 'string' ? parseInt(q.offset, 10) : undefined,
+		local: typeof(q.local) === 'string' ? toBoolean(q.local) : undefined,
+		pinned: typeof(q.pinned) === 'string' ? toBoolean(q.pinned) : undefined,
+		exclude_reblogs: typeof(q.exclude_reblogs) === 'string' ? toBoolean(q.exclude_reblogs) : undefined,
+		exclude_replies: typeof(q.exclude_replies) === 'string' ? toBoolean(q.exclude_replies) : undefined,
+		only_media: typeof(q.only_media) === 'string' ? toBoolean(q.only_media) : undefined,
+	};
+}