mapcomplete/UI/InputElement/Validators/UrlValidator.ts

71 lines
2.3 KiB
TypeScript

import { Validator } from "../Validator"
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)
}
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
}
}
}