first-commit

web_src/js/utils/url.ts

@@ -0,0 +1,31 @@
+export function pathEscapeSegments(s: string): string {
+  return s.split('/').map(encodeURIComponent).join('/');
+}
+
+function stripSlash(url: string): string {
+  return url.endsWith('/') ? url.slice(0, -1) : url;
+}
+
+export function isUrl(url: string): boolean {
+  try {
+    return stripSlash((new URL(url).href)).trim() === stripSlash(url).trim();
+  } catch {
+    return false;
+  }
+}
+
+// Convert an absolute or relative URL to an absolute URL with the current origin. It only
+// processes absolute HTTP/HTTPS URLs or relative URLs like '/xxx' or '//host/xxx'.
+export function toOriginUrl(urlStr: string) {
+  try {
+    if (urlStr.startsWith('http://') || urlStr.startsWith('https://') || urlStr.startsWith('/')) {
+      const {origin, protocol, hostname, port} = window.location;
+      const url = new URL(urlStr, origin);
+      url.protocol = protocol;
+      url.hostname = hostname;
+      url.port = port || (protocol === 'https:' ? '443' : '80');
+      return url.toString();
+    }
+  } catch {}
+  return urlStr;
+}