Css batching (#3326)
* tracker: initial css inlining functionality * tracker: add tests, adjust sheet id, stagger rule sending * ui: rereoute custom html component fragments * removed sorting --------- Co-authored-by: nick-delirium <nikita@openreplay.com>
This commit is contained in:
parent
85e30b3692
commit
f8ba3f6d89
6 changed files with 103 additions and 340 deletions
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@ -1,5 +1,4 @@
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import logger from 'App/logger';
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import { resolveCSS } from '../../messages/rewriter/urlResolve';
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import type Screen from '../../Screen/Screen';
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import type { Message, SetNodeScroll } from '../../messages';
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@ -450,8 +449,9 @@ export default class DOMManager extends ListWalker<Message> {
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logger.error('CreateIFrameDocument: Node not found', msg);
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return;
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}
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// shadow DOM for a custom element + SALESFORCE (<slot>)
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const isCustomElement = vElem.tagName.includes('-') || vElem.tagName === 'SLOT';
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// shadow DOM for a custom element
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const isCustomElement = vElem.tagName.includes('-');
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const isNotActualIframe = !["IFRAME", "FRAME"].includes(vElem.tagName.toUpperCase());
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const isLikelyShadowRoot = isCustomElement && isNotActualIframe;
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@ -272,6 +272,7 @@ export default class App {
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'feature-flags': true,
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'usability-test': true,
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}
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private emptyBatchCounter = 0
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constructor(
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projectKey: string,
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@ -318,14 +319,16 @@ export default class App {
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__save_canvas_locally: false,
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localStorage: null,
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sessionStorage: null,
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disableStringDict: true,
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forceSingleTab: false,
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assistSocketHost: '',
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fixedCanvasScaling: false,
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disableCanvas: false,
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captureIFrames: true,
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obscureTextEmails: false,
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disableSprites: false,
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inlineRemoteCss: true,
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obscureTextEmails: true,
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obscureTextNumbers: false,
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disableStringDict: false,
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crossdomain: {
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parentDomain: '*',
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},
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@ -336,12 +339,6 @@ export default class App {
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useAnimationFrame: false,
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},
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forceNgOff: false,
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inlineRemoteCss: false,
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disableSprites: false,
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inlinerOptions: {
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forceFetch: false,
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forcePlain: false,
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}
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}
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this.options = simpleMerge(defaultOptions, options)
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@ -436,6 +433,7 @@ export default class App {
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if (ev.data.context === this.contextId) {
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return
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}
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this.debug.log(ev)
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if (ev.data.line === proto.resp) {
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const sessionToken = ev.data.token
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this.session.setSessionToken(sessionToken)
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@ -853,8 +851,7 @@ export default class App {
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* */
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private _nCommit(): void {
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if (this.socketMode) {
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this.messages.unshift(TabData(this.session.getTabId()))
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this.messages.unshift(Timestamp(this.timestamp()))
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this.messages.unshift(Timestamp(this.timestamp()), TabData(this.session.getTabId()))
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this.commitCallbacks.forEach((cb) => cb(this.messages))
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this.messages.length = 0
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return
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@ -877,10 +874,19 @@ export default class App {
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return
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}
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if (!this.messages.length) {
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// Release empty batches every 30 secs (1000 * 30ms)
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if (this.emptyBatchCounter < 1000) {
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this.emptyBatchCounter++;
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return;
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}
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}
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this.emptyBatchCounter = 0
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try {
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requestIdleCb(() => {
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this.messages.unshift(TabData(this.session.getTabId()))
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this.messages.unshift(Timestamp(this.timestamp()))
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this.messages.unshift(Timestamp(this.timestamp()), TabData(this.session.getTabId()))
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this.worker?.postMessage(this.messages)
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this.commitCallbacks.forEach((cb) => cb(this.messages))
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this.messages.length = 0
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@ -905,10 +911,9 @@ export default class App {
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private _cStartCommit(): void {
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this.coldStartCommitN += 1
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if (this.coldStartCommitN === 2) {
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this.bufferedMessages1.push(Timestamp(this.timestamp()))
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this.bufferedMessages1.push(TabData(this.session.getTabId()))
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this.bufferedMessages2.push(Timestamp(this.timestamp()))
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this.bufferedMessages2.push(TabData(this.session.getTabId()))
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const payload = [Timestamp(this.timestamp()), TabData(this.session.getTabId())]
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this.bufferedMessages1.push(...payload)
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this.bufferedMessages2.push(...payload)
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this.coldStartCommitN = 0
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}
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}
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@ -1,5 +1,3 @@
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let fakeIdHolder = 1000000 * 99;
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export function inlineRemoteCss(
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node: HTMLLinkElement,
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id: number,
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@ -7,286 +5,83 @@ export function inlineRemoteCss(
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getNextID: () => number,
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insertRule: (id: number, cssText: string, index: number, baseHref: string) => any[],
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addOwner: (sheetId: number, ownerId: number) => any[],
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forceFetch?: boolean,
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sendPlain?: boolean,
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onPlain?: (cssText: string, id: number) => void,
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) {
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const sheetId = getNextID();
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const sheet = node.sheet;
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const sheetId = getNextID()
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addOwner(sheetId, id);
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const sheet = node.sheet;
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if (sheet && !forceFetch) {
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try {
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const cssText = stringifyStylesheet(sheet);
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if (cssText) {
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processCssText(cssText);
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return;
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}
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} catch (e) {
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console.warn("Could not stringify sheet, falling back to fetch:", e);
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const processRules = (rules: CSSRuleList) => {
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if (rules.length) {
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setTimeout(() => {
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for (let i = 0; i < rules.length; i++) {
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const rule = rules[i];
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insertRule(sheetId, rule.cssText, i, baseHref);
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}
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}, 0)
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}
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}
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};
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// Fall back to fetching if we couldn't get or stringify the sheet
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if (node.href) {
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const processCssText = (cssText: string) => {
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cssText = cssText.replace(/\/\*[\s\S]*?\*\//g, '');
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const ruleTexts: string[] = [];
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let depth = 0;
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let currentRule = '';
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for (let i = 0; i < cssText.length; i++) {
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const char = cssText[i];
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if (char === '{') {
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depth++;
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} else if (char === '}') {
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depth--;
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if (depth === 0) {
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currentRule += char;
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ruleTexts.push(currentRule.trim());
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currentRule = '';
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continue;
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}
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}
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currentRule += char;
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}
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for (let i = 0; i < ruleTexts.length; i++) {
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const ruleText = ruleTexts[i];
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insertRule(sheetId, ruleText, i, baseHref);
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}
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};
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if (sheet) {
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try {
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const rules = sheet.cssRules;
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processRules(rules);
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} catch (e) {
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const href = node.href;
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if (href) {
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fetch(href)
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.then(response => {
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if (!response.ok) {
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throw new Error(`Failed to fetch CSS: ${response.status}`);
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}
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return response.text();
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})
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.then(cssText => {
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processCssText(cssText);
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})
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.catch(error => {
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console.error(`Failed to fetch or process CSS from ${href}:`, error);
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});
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}
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}
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} else if (node.href) {
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fetch(node.href)
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.then(response => {
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if (!response.ok) {
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throw new Error(`Failed to fetch CSS: ${response.status}`);
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}
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return response.text();
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})
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.then(response => response.text())
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.then(cssText => {
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if (sendPlain && onPlain) {
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onPlain(cssText, fakeIdHolder++);
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}
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processCssText(cssText);
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})
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.catch(error => {
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console.error(`Failed to fetch CSS from ${node.href}:`, error);
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});
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}
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function processCssText(cssText: string) {
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// Remove comments
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cssText = cssText.replace(/\/\*[\s\S]*?\*\//g, '');
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// Parse and process the CSS text to extract rules
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const ruleTexts = parseCSS(cssText);
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for (let i = 0; i < ruleTexts.length; i++) {
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insertRule(sheetId, ruleTexts[i], i, baseHref);
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}
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}
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function parseCSS(cssText: string): string[] {
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const rules: string[] = [];
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let inComment = false;
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let inString = false;
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let stringChar = '';
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let braceLevel = 0;
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let currentRule = '';
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for (let i = 0; i < cssText.length; i++) {
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const char = cssText[i];
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const nextChar = cssText[i + 1] || '';
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// comments
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if (!inString && char === '/' && nextChar === '*') {
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inComment = true;
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i++; // Skip the next character
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continue;
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}
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if (inComment) {
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if (char === '*' && nextChar === '/') {
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inComment = false;
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i++; // Skip the next character
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}
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continue;
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}
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if (!inString && (char === '"' || char === "'")) {
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inString = true;
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stringChar = char;
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currentRule += char;
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continue;
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}
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if (inString) {
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currentRule += char;
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if (char === stringChar && cssText[i - 1] !== '\\') {
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inString = false;
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}
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continue;
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}
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currentRule += char;
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if (char === '{') {
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braceLevel++;
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} else if (char === '}') {
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braceLevel--;
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if (braceLevel === 0) {
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// End of a top-level rule
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rules.push(currentRule.trim());
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currentRule = '';
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}
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}
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}
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// Handle any remaining text (should be rare)
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if (currentRule.trim()) {
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rules.push(currentRule.trim());
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}
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return rules;
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}
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function stringifyStylesheet(s: CSSStyleSheet): string | null {
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try {
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const rules = s.rules || s.cssRules;
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if (!rules) {
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return null;
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}
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let sheetHref = s.href;
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if (!sheetHref && s.ownerNode && (s.ownerNode as HTMLElement).ownerDocument) {
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// an inline <style> element
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sheetHref = (s.ownerNode as HTMLElement).ownerDocument.location.href;
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}
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const stringifiedRules = Array.from(rules, (rule: CSSRule) =>
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stringifyRule(rule, sheetHref)
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).join('');
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return fixBrowserCompatibilityIssuesInCSS(stringifiedRules);
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} catch (error) {
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return null;
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}
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}
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function stringifyRule(rule: CSSRule, sheetHref: string | null): string {
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if (isCSSImportRule(rule)) {
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let importStringified;
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try {
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importStringified =
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// for same-origin stylesheets,
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// we can access the imported stylesheet rules directly
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stringifyStylesheet((rule as any).styleSheet) ||
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// work around browser issues with the raw string `@import url(...)` statement
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escapeImportStatement(rule as any);
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} catch (error) {
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importStringified = rule.cssText;
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}
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if ((rule as any).styleSheet.href) {
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// url()s within the imported stylesheet are relative to _that_ sheet's href
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return absolutifyURLs(importStringified, (rule as any).styleSheet.href);
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}
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return importStringified;
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} else {
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let ruleStringified = rule.cssText;
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if (isCSSStyleRule(rule) && (rule as any).selectorText.includes(':')) {
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// Safari does not escape selectors with : properly
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ruleStringified = fixSafariColons(ruleStringified);
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}
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if (sheetHref) {
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return absolutifyURLs(ruleStringified, sheetHref);
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}
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return ruleStringified;
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}
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}
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function fixBrowserCompatibilityIssuesInCSS(cssText: string): string {
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// Fix for Chrome's handling of webkit-background-clip
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if (
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cssText.includes(' background-clip: text;') &&
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!cssText.includes(' -webkit-background-clip: text;')
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) {
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cssText = cssText.replace(
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/\sbackground-clip:\s*text;/g,
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' -webkit-background-clip: text; background-clip: text;',
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);
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}
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return cssText;
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}
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function escapeImportStatement(rule: any): string {
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const { cssText } = rule;
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if (cssText.split('"').length < 3) return cssText;
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const statement = ['@import', `url(${JSON.stringify(rule.href)})`];
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if (rule.layerName === '') {
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statement.push(`layer`);
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} else if (rule.layerName) {
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statement.push(`layer(${rule.layerName})`);
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}
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if (rule.supportsText) {
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statement.push(`supports(${rule.supportsText})`);
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}
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if (rule.media.length) {
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statement.push(rule.media.mediaText);
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}
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return statement.join(' ') + ';';
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}
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function fixSafariColons(cssStringified: string): string {
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const regex = /(\[(?:[\w-]+)[^\\])(:(?:[\w-]+)\])/gm;
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return cssStringified.replace(regex, '$1\\$2');
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}
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function isCSSImportRule(rule: CSSRule): boolean {
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return 'styleSheet' in rule;
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}
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function isCSSStyleRule(rule: CSSRule): boolean {
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return 'selectorText' in rule;
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}
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function absolutifyURLs(cssText: string | null, href: string): string {
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if (!cssText) return '';
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const URL_IN_CSS_REF = /url\((?:(')([^']*)'|(")(.*?)"|([^)]*))\)/gm;
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const URL_PROTOCOL_MATCH = /^(?:[a-z+]+:)?\/\//i;
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const URL_WWW_MATCH = /^www\..*/i;
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const DATA_URI = /^(data:)([^,]*),(.*)/i;
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return cssText.replace(
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URL_IN_CSS_REF,
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(
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origin: string,
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quote1: string,
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path1: string,
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quote2: string,
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path2: string,
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path3: string,
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) => {
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const filePath = path1 || path2 || path3;
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const maybeQuote = quote1 || quote2 || '';
|
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if (!filePath) {
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return origin;
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}
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if (URL_PROTOCOL_MATCH.test(filePath) || URL_WWW_MATCH.test(filePath)) {
|
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return `url(${maybeQuote}${filePath}${maybeQuote})`;
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}
|
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if (DATA_URI.test(filePath)) {
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return `url(${maybeQuote}${filePath}${maybeQuote})`;
|
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}
|
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if (filePath[0] === '/') {
|
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return `url(${maybeQuote}${
|
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extractOrigin(href) + filePath
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}${maybeQuote})`;
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}
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const stack = href.split('/');
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const parts = filePath.split('/');
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stack.pop();
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for (const part of parts) {
|
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if (part === '.') {
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continue;
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} else if (part === '..') {
|
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stack.pop();
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} else {
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stack.push(part);
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}
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}
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return `url(${maybeQuote}${stack.join('/')}${maybeQuote})`;
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},
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);
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}
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function extractOrigin(url: string): string {
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let origin = '';
|
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if (url.indexOf('//') > -1) {
|
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origin = url.split('/').slice(0, 3).join('/');
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} else {
|
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origin = url.split('/')[0];
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}
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origin = origin.split('?')[0];
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return origin;
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}
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}
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}
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|
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@ -184,15 +184,6 @@ enum RecentsType {
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Changed,
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}
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|
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interface Options {
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inlineRemoteCss?: boolean,
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disableSprites?: boolean,
|
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inlinerOptions?: {
|
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forceFetch?: boolean,
|
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forcePlain?: boolean,
|
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}
|
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}
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export default abstract class Observer {
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private readonly observer: MutationObserver
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private readonly commited: Array<boolean | undefined> = []
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|
|
@ -207,16 +198,14 @@ export default abstract class Observer {
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* can (and will) affect performance
|
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* */
|
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private readonly inlineRemoteCss: boolean = false
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private readonly inlinerOptions: Options['inlinerOptions'] = undefined
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private readonly domParser = new DOMParser()
|
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constructor(
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protected readonly app: App,
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protected readonly isTopContext: boolean = false,
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options: Options = {},
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protected readonly isTopContext = false,
|
||||
options: { disableSprites: boolean, inlineRemoteCss: boolean } = { disableSprites: false, inlineRemoteCss: false },
|
||||
) {
|
||||
this.disableSprites = Boolean(options.disableSprites)
|
||||
this.inlineRemoteCss = Boolean(options.inlineRemoteCss)
|
||||
this.inlinerOptions = options.inlinerOptions
|
||||
this.disableSprites = options.disableSprites
|
||||
this.inlineRemoteCss = options.inlineRemoteCss
|
||||
this.observer = createMutationObserver(
|
||||
this.app.safe((mutations) => {
|
||||
for (const mutation of mutations) {
|
||||
|
|
@ -379,23 +368,15 @@ export default abstract class Observer {
|
|||
setTimeout(() => {
|
||||
inlineRemoteCss(
|
||||
// @ts-ignore
|
||||
node,
|
||||
id,
|
||||
this.app.getBaseHref(),
|
||||
nextID,
|
||||
node,
|
||||
id,
|
||||
this.app.getBaseHref(),
|
||||
nextID,
|
||||
(id: number, cssText: string, index: number, baseHref: string) => {
|
||||
this.app.send(AdoptedSSInsertRuleURLBased(id, cssText, index, baseHref))
|
||||
},
|
||||
(sheetId: number, ownerId: number) => {
|
||||
this.app.send(AdoptedSSAddOwner(sheetId, ownerId))
|
||||
},
|
||||
this.inlinerOptions?.forceFetch,
|
||||
this.inlinerOptions?.forcePlain,
|
||||
(cssText: string, fakeTextId: number) => {
|
||||
this.app.send(CreateTextNode(fakeTextId, id, 0))
|
||||
setTimeout(() => {
|
||||
this.app.send(SetNodeData(fakeTextId, cssText))
|
||||
}, 10)
|
||||
}
|
||||
)
|
||||
}, 0)
|
||||
|
|
|
|||
|
|
@ -20,10 +20,6 @@ export interface Options {
|
|||
* @default false
|
||||
* */
|
||||
inlineRemoteCss: boolean
|
||||
inlinerOptions?: {
|
||||
forceFetch?: boolean,
|
||||
forcePlain?: boolean,
|
||||
}
|
||||
}
|
||||
|
||||
type Context = Window & typeof globalThis
|
||||
|
|
@ -99,7 +95,7 @@ export default class TopObserver extends Observer {
|
|||
this.app.debug.info('doc already observed for', id)
|
||||
return
|
||||
}
|
||||
const observer = new IFrameObserver(this.app, false, {})
|
||||
const observer = new IFrameObserver(this.app)
|
||||
this.iframeObservers.set(iframe, observer)
|
||||
this.docObservers.set(currentDoc, observer)
|
||||
this.iframeObserversArr.push(observer)
|
||||
|
|
|
|||
|
|
@ -53,7 +53,7 @@ describe('inlineRemoteCss', () => {
|
|||
jest.runAllTimers();
|
||||
expect(mockNextID).toHaveBeenCalled();
|
||||
expect(mockAdoptedSSAddOwner).toHaveBeenCalledWith(123, 456);
|
||||
expect(mockAdoptedSSInsertRuleURLBased).toHaveBeenCalledWith(123, 'body { color: red; }', 0, 'http://example.com');
|
||||
expect(mockAdoptedSSInsertRuleURLBased).toHaveBeenCalledWith(456, 'body { color: red; }', 0, 'http://example.com');
|
||||
jest.useRealTimers();
|
||||
});
|
||||
|
||||
|
|
@ -73,12 +73,6 @@ describe('inlineRemoteCss', () => {
|
|||
test('should handle successful fetch and process CSS text', async () => {
|
||||
mockNode.href = 'http://example.com/style.css';
|
||||
const mockSheet = {};
|
||||
global.fetch.mockImplementationOnce(() =>
|
||||
Promise.resolve({
|
||||
ok: true,
|
||||
text: () => Promise.resolve('body { color: red; }')
|
||||
})
|
||||
);
|
||||
Object.defineProperty(mockSheet, 'cssRules', {
|
||||
get: () => { throw new Error('CORS error'); }
|
||||
});
|
||||
|
|
@ -86,26 +80,18 @@ describe('inlineRemoteCss', () => {
|
|||
get: () => mockSheet
|
||||
});
|
||||
inlineRemoteCss(mockNode, 456, 'http://example.com',mockNextID,mockAdoptedSSInsertRuleURLBased, mockAdoptedSSAddOwner);
|
||||
await new Promise(resolve => setTimeout(resolve, 0));
|
||||
await new Promise(process.nextTick);
|
||||
expect(mockNextID).toHaveBeenCalled();
|
||||
expect(mockAdoptedSSAddOwner).toHaveBeenCalledWith(123, 456);
|
||||
expect(mockAdoptedSSInsertRuleURLBased).toHaveBeenCalledWith(123, 'body { color: red; }', 0, 'http://example.com');
|
||||
jest.useRealTimers();
|
||||
});
|
||||
|
||||
test('should fetch CSS if node has no sheet but has href', async () => {
|
||||
test('should fetch CSS if node has no sheet but has href', () => {
|
||||
Object.defineProperty(mockNode, 'sheet', {
|
||||
get: () => null
|
||||
});
|
||||
global.fetch.mockImplementationOnce(() =>
|
||||
Promise.resolve({
|
||||
ok: true,
|
||||
text: () => Promise.resolve('body { color: red; }')
|
||||
})
|
||||
);
|
||||
mockNode.href = 'http://example.com/style.css';
|
||||
inlineRemoteCss(mockNode, 456, 'http://example.com',mockNextID,mockAdoptedSSInsertRuleURLBased, mockAdoptedSSAddOwner);
|
||||
await new Promise(resolve => setTimeout(resolve, 0));
|
||||
expect(global.fetch).toHaveBeenCalledWith('http://example.com/style.css');
|
||||
});
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue