forked from MapComplete/MapComplete
40 lines
1.3 KiB
TypeScript
40 lines
1.3 KiB
TypeScript
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import UrlValidator from "./UrlValidator"
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import { Translation } from "../../i18n/Translation"
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export default class ImageUrlValidator extends UrlValidator {
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private static readonly allowedExtensions = ["jpg", "jpeg", "svg", "png"]
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constructor() {
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super(
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"image",
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"Same as the URL-parameter, except that it checks that the URL ends with `.jpg`, `.png` or some other typical image format"
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)
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}
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private static hasValidExternsion(str: string): boolean {
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str = str.toLowerCase()
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return ImageUrlValidator.allowedExtensions.some((ext) => str.endsWith(ext))
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}
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getFeedback(s: string, _?: () => string): Translation | undefined {
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const superF = super.getFeedback(s, _)
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if (superF) {
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return superF
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}
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if (!ImageUrlValidator.hasValidExternsion(s)) {
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return new Translation(
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"This URL does not end with one of the allowed extensions. These are: " +
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ImageUrlValidator.allowedExtensions.join(", ")
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)
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}
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return undefined
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}
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isValid(str: string): boolean {
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if (!super.isValid(str)) {
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return false
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}
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return ImageUrlValidator.hasValidExternsion(str)
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}
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}
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