server-islands.ts — astro Source File

Source Code

import { encryptString, generateCspDigest } from '../../../core/encryption.js';
import type { SSRResult } from '../../../types/public/internal.js';
import { markHTMLString } from '../escape.js';
import { renderChild } from './any.js';
import { createThinHead, type ThinHead } from './astro/head-and-content.js';
import type { RenderDestination } from './common.js';
import { createRenderInstruction } from './instruction.js';
import { type ComponentSlots, renderSlotToString } from './slot.js';

const internalProps = new Set([
	'server:component-path',
	'server:component-export',
	'server:component-directive',
	'server:defer',
]);

export function containsServerDirective(props: Record<string | number, any>) {
	return 'server:component-directive' in props;
}

const SCRIPT_RE = /<\/script/giu;
const COMMENT_RE = /<!--/gu;
const SCRIPT_REPLACER = '<\\/script';
const COMMENT_REPLACER = '\\u003C!--';

/**
 * Encodes the script end-tag open (ETAGO) delimiter and opening HTML comment syntax for JSON inside a `<script>` tag.
 * @see https://mathiasbynens.be/notes/etago
 */
function safeJsonStringify(obj: any) {
	return JSON.stringify(obj)
		.replace(SCRIPT_RE, SCRIPT_REPLACER)
		.replace(COMMENT_RE, COMMENT_REPLACER);
}

function createSearchParams(
	encryptedComponentExport: string,
	encryptedProps: string,
	slots: string,
) {
	const params = new URLSearchParams();
	params.set('e', encryptedComponentExport);
	params.set('p', encryptedProps);
	params.set('s', slots);
	return params;
}

function isWithinURLLimit(pathname: string, params: URLSearchParams) {
	const url = pathname + '?' + params.toString();
	const chars = url.length;
	// https://chromium.googlesource.com/chromium/src/+/master/docs/security/url_display_guidelines/url_display_guidelines.md#url-length
	return chars < 2048;
}

export class ServerIslandComponent {
	result: SSRResult;
	props: Record<string | number, any>;
	slots: ComponentSlots;
	displayName: string;
	hostId: string | undefined;
// ... (193 more lines)