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Refactoring

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This commit is contained in:
syuilo⭐️ 2017-05-03 23:10:46 +09:00
parent c0de302d85
commit fc7ef6d143
1 changed files with 10 additions and 8 deletions
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18
src/general.ts
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@ -75,12 +75,13 @@ export default async (url: URL.Url): Promise<Summary> => {
$('link[rel="icon"]').attr('href') ||
'/favicon.ico';
const checkExistence = (checkURL: string): Promise<string> => new Promise(done => {
request.head(checkURL, (err, res) => {
const find = (path: string) => new Promise<string>(done => {
const target = URL.resolve(url.href, path);
request.head(target, (err, res) => {
if (err) {
done(null);
} else if (res.statusCode == 200) {
done(checkURL);
done(target);
} else {
done(null);
}
@ -90,18 +91,19 @@ export default async (url: URL.Url): Promise<Summary> => {
// 相対的なURL (ex. test) を絶対的 (ex. /test) に変換
const toAbsolute = (relativeURLString: string): string => {
const relativeURL = URL.parse(relativeURLString);
const isAbsolute = relativeURL.slashes || relativeURL.path.indexOf("/") === 0;
const isAbsolute = relativeURL.slashes || relativeURL.path[0] === '/';
// 既に絶対的なら、即座に値を返却
if (isAbsolute) return relativeURLString;
// スラッシュを付けて返却
return "/" + relativeURLString;
return '/' + relativeURLString;
};
const icon = await checkExistence(URL.resolve(url.href, favicon)) ||
const icon = await find(favicon) ||
// 相対指定を絶対指定に変換し再試行
await checkExistence(URL.resolve(url.href, toAbsolute(favicon))) ||
null
await find(toAbsolute(favicon)) ||
null;
// Clean up the title
if (/[\-—\|:]$/.test(title.replace(new RegExp(`${escapeRegExp(siteName)}$`), '').trim())) {
title = title.replace(new RegExp(`${escapeRegExp(siteName)}$`), '').trim();
title = title.replace(/[\-—\|:]$/, '').trim();