astro/dist/assets/fonts/infra/build-url-resolver.js

Astro is a modern site builder with web best practices, performance, and DX front-of-mind.

import { fileExtension, joinPaths, prependForwardSlash } from "../../../core/path.js";
import { getAssetsPrefix } from "../../utils/getAssetsPrefix.js";
import { createPlaceholderURL, stringifyPlaceholderURL } from "../../utils/url.js";
export class BuildUrlResolver {
	#resources = new Set();
	#urls = new Set();
	#base;
	#assetsPrefix;
	#searchParams;
	constructor({ base, assetsPrefix, searchParams }) {
		this.#base = base;
		this.#assetsPrefix = assetsPrefix;
		this.#searchParams = searchParams;
	}
	resolve(id) {
		const prefix = this.#assetsPrefix ? getAssetsPrefix(fileExtension(id), this.#assetsPrefix) : undefined;
		let urlPath;
		if (prefix) {
			this.#resources.add(prefix);
			urlPath = joinPaths(prefix, this.#base, id);
		} else {
			this.#resources.add("'self'");
			urlPath = prependForwardSlash(joinPaths(this.#base, id));
		}
		// Create URL object and append searchParams if available (for adapter-level tracking like skew protection)
		const url = createPlaceholderURL(urlPath);
		this.#searchParams.forEach((value, key) => {
			url.searchParams.set(key, value);
		});
		const result = stringifyPlaceholderURL(url);
		this.#urls.add(result);
		return result;
	}
	get cspResources() {
		return Array.from(this.#resources);
	}
	get urls() {
		return Array.from(this.#urls);
	}
}