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6.25.0/sanitize/browser.ts

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+import Amuchina from "amuchina";
+
+const should_open_link_in_new_tab = (link: string | null): boolean => {
+	const href = link?.trim();
+	return !!href && !href.startsWith("#");
+};
+
+// <style> elements and stylesheet <link>s apply to the whole document once
+// injected, so drop them, matching the server-side sanitize-html defaults.
+const configuration = Amuchina.getDefaultConfiguration();
+configuration.allowElements = (configuration.allowElements ?? []).filter(
+	(element: string) =>
+		element !== "style" && element !== "svg:style" && element !== "link"
+);
+const amuchina = new Amuchina(configuration);
+
+export function sanitize(source: string): string {
+	const node = new DOMParser().parseFromString(source, "text/html");
+	const sanitized_node = amuchina.sanitize(node);
+	walk_nodes(sanitized_node.body, "A", (node) => {
+		if (node instanceof HTMLElement && "target" in node) {
+			if (should_open_link_in_new_tab(node.getAttribute("href"))) {
+				node.setAttribute("target", "_blank");
+				node.setAttribute("rel", "noopener noreferrer");
+			}
+		}
+	});
+
+	return sanitized_node.body.innerHTML;
+}
+
+function walk_nodes(
+	node: Node | null | HTMLElement,
+	test: string | ((node: Node | HTMLElement) => boolean),
+	callback: (node: Node | HTMLElement) => void
+): void {
+	if (
+		node &&
+		((typeof test === "string" && node.nodeName === test) ||
+			(typeof test === "function" && test(node)))
+	) {
+		callback(node);
+	}
+	const children = node?.childNodes || [];
+	for (let i = 0; i < children.length; i++) {
+		// @ts-ignore
+		walk_nodes(children[i], test, callback);
+	}
+}

6.25.0/sanitize/index.d.ts

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+export declare function sanitize(source: string): string;

6.25.0/sanitize/package.json

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+{
+	"name": "@gradio/sanitize",
+	"version": "0.4.1",
+	"description": "Gradio UI packages",
+	"type": "module",
+	"author": "",
+	"main": "./dist/server.js",
+	"license": "ISC",
+	"dependencies": {
+		"amuchina": "^1.0.12",
+		"sanitize-html": "^2.17.0"
+	},
+	"devDependencies": {
+		"@types/sanitize-html": "^2.16.0"
+	},
+	"main_changeset": true,
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/gradio-app/gradio.git",
+		"directory": "js/utils"
+	},
+	"exports": {
+		".": {
+			"types": "./dist/index.d.ts",
+			"browser": {
+				"gradio": "./browser.ts",
+				"default": "./dist/browser.js"
+			},
+			"default": {
+				"gradio": "./server.ts",
+				"default": "./dist/server.js"
+			}
+		},
+		"./package.json": "./package.json"
+	},
+	"scripts": {
+		"package": "svelte-package --input=. --tsconfig=../../tsconfig.json"
+	}
+}

6.25.0/sanitize/server.ts

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+import { default as sanitize_html_ } from "sanitize-html";
+
+export function sanitize(source: string): string {
+	return sanitize_html_(source);
+}