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

import { convertId, IdConvertType as IdType, convertAccount, convertConversation, convertList, convertStatus } from '../converters.js';
import { ParsedUrlQuery } from 'querystring';

export function limitToInt(q: ParsedUrlQuery) {
	let object: any = q;
	if (q.limit)
		if (typeof q.limit === 'string') object.limit = parseInt(q.limit, 10);
	if (q.offset)
		if (typeof q.offset === 'string') object.offset = parseInt(q.offset, 10);
	return object;
}

export function argsToBools(q: ParsedUrlQuery) {
	// Values taken from https://docs.joinmastodon.org/client/intro/#boolean
	const toBoolean = (value: string) =>
		!['0', 'f', 'F', 'false', 'FALSE', 'off', 'OFF'].includes(value);

	// Keys taken from:
	// - https://docs.joinmastodon.org/methods/accounts/#statuses
	// - https://docs.joinmastodon.org/methods/timelines/#public
	// - https://docs.joinmastodon.org/methods/timelines/#tag
	let object: any = q;
	if (q.only_media)
		if (typeof q.only_media === 'string')
			object.only_media = toBoolean(q.only_media);
	if (q.exclude_replies)
		if (typeof q.exclude_replies === 'string')
			object.exclude_replies = toBoolean(q.exclude_replies);
	if (q.exclude_reblogs)
		if (typeof q.exclude_reblogs === 'string')
			object.exclude_reblogs = toBoolean(q.exclude_reblogs);
	if (q.pinned)
		if (typeof q.pinned === 'string') object.pinned = toBoolean(q.pinned);
	if (q.local)
		if (typeof q.local === 'string') object.local = toBoolean(q.local);
	return q;
}

export function convertTimelinesArgsId(q: ParsedUrlQuery) {
	if (typeof q.min_id === 'string')
		q.min_id = convertId(q.min_id, IdType.SharkeyId);
	if (typeof q.max_id === 'string')
		q.max_id = convertId(q.max_id, IdType.SharkeyId);
	if (typeof q.since_id === 'string')
		q.since_id = convertId(q.since_id, IdType.SharkeyId);
	return q;
}

function escapeHTML(str: string) {
	if (!str) {
		return '';
	}
	return str
		.replace(/&/g, '&')
		.replace(/</g, '&lt;')
		.replace(/>/g, '&gt;')
		.replace(/'/g, '&quot;')
		.replace(/'/g, '&#039;');
}

function nl2br(str: string) {
	if (!str) {
		return '';
	}
	str = str.replace(/\r\n/g, '<br />');
	str = str.replace(/(\n|\r)/g, '<br />');
	return str;
}