More refactoring

UI/InputElement/Validators/UrlValidator.ts

@@ -0,0 +1,75 @@
+import { Validator } from "../ValidatedTextField"
+
+export default class UrlValidator extends Validator {
+    constructor() {
+        super(
+            "url",
+            "The validatedTextField will format URLs to always be valid and have a https://-header (even though the 'https'-part will be hidden from the user. Furthermore, some tracking parameters will be removed",
+            "url"
+        )
+    }
+    reformat(str: string): string {
+        try {
+            let url: URL
+            // str = str.toLowerCase() // URLS are case sensitive. Lowercasing them might break some URLS. See #763
+            if (
+                !str.startsWith("http://") &&
+                !str.startsWith("https://") &&
+                !str.startsWith("http:")
+            ) {
+                url = new URL("https://" + str)
+            } else {
+                url = new URL(str)
+            }
+            const blacklistedTrackingParams = [
+                "fbclid", // Oh god, how I hate the fbclid. Let it burn, burn in hell!
+                "gclid",
+                "cmpid",
+                "agid",
+                "utm",
+                "utm_source",
+                "utm_medium",
+                "campaignid",
+                "campaign",
+                "AdGroupId",
+                "AdGroup",
+                "TargetId",
+                "msclkid",
+            ]
+            for (const dontLike of blacklistedTrackingParams) {
+                url.searchParams.delete(dontLike.toLowerCase())
+            }
+            let cleaned = url.toString()
+            if (cleaned.endsWith("/") && !str.endsWith("/")) {
+                // Do not add a trailing '/' if it wasn't typed originally
+                cleaned = cleaned.substr(0, cleaned.length - 1)
+            }
+
+            if (!str.startsWith("http") && cleaned.startsWith("https://")) {
+                cleaned = cleaned.substr("https://".length)
+            }
+
+            return cleaned
+        } catch (e) {
+            console.error(e)
+            return undefined
+        }
+    }
+
+    isValid(str: string): boolean {
+        try {
+            if (
+                !str.startsWith("http://") &&
+                !str.startsWith("https://") &&
+                !str.startsWith("http:")
+            ) {
+                str = "https://" + str
+            }
+            const url = new URL(str)
+            const dotIndex = url.host.indexOf(".")
+            return dotIndex > 0 && url.host[url.host.length - 1] !== "."
+        } catch (e) {
+            return false
+        }
+    }
+}