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utils.ts
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utils.ts
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/**
* Copyright Microsoft Corporation. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import type { Frame, Page } from 'playwright-core';
import { ZipFile } from '../../packages/playwright-core/lib/utils/zipFile';
import type { TraceModelBackend } from '../../packages/trace-viewer/src/traceModel';
import type { StackFrame } from '../../packages/protocol/src/channels';
import { parseClientSideCallMetadata } from '../../packages/playwright-core/lib/utils/isomorphic/traceUtils';
import { TraceModel } from '../../packages/trace-viewer/src/traceModel';
import type { ActionTreeItem } from '../../packages/trace-viewer/src/ui/modelUtil';
import { buildActionTree, MultiTraceModel } from '../../packages/trace-viewer/src/ui/modelUtil';
import type { ActionTraceEvent, ConsoleMessageTraceEvent, EventTraceEvent, TraceEvent } from '@trace/trace';
export async function attachFrame(page: Page, frameId: string, url: string): Promise<Frame> {
const handle = await page.evaluateHandle(async ({ frameId, url }) => {
const frame = document.createElement('iframe');
frame.src = url;
frame.id = frameId;
document.body.appendChild(frame);
await new Promise(x => frame.onload = x);
return frame;
}, { frameId, url });
return handle.asElement().contentFrame() as Promise<Frame>;
}
export async function detachFrame(page: Page, frameId: string) {
await page.evaluate(frameId => {
document.getElementById(frameId)!.remove();
}, frameId);
}
export async function verifyViewport(page: Page, width: number, height: number) {
// `expect` may clash in test runner tests if imported eagerly.
const { expect } = require('@playwright/test');
expect(page.viewportSize()!.width).toBe(width);
expect(page.viewportSize()!.height).toBe(height);
expect(await page.evaluate('window.innerWidth')).toBe(width);
expect(await page.evaluate('window.innerHeight')).toBe(height);
}
export function expectedSSLError(browserName: string, platform: string): RegExp {
if (browserName === 'chromium')
return /net::(ERR_CERT_AUTHORITY_INVALID|ERR_CERT_INVALID)/;
if (browserName === 'webkit') {
if (platform === 'darwin')
return /The certificate for this server is invalid/;
else if (platform === 'win32')
return /SSL peer certificate or SSH remote key was not OK/;
else
return /Unacceptable TLS certificate/;
}
return /SSL_ERROR_UNKNOWN/;
}
export function chromiumVersionLessThan(a: string, b: string) {
const left: number[] = a.split('.').map(e => Number(e));
const right: number[] = b.split('.').map(e => Number(e));
for (let i = 0; i < 4; i++) {
if (left[i] > right[i])
return false;
if (left[i] < right[i])
return true;
}
return false;
}
let didSuppressUnverifiedCertificateWarning = false;
let originalEmitWarning: (warning: string | Error, ...args: any[]) => void;
export function suppressCertificateWarning() {
if (didSuppressUnverifiedCertificateWarning)
return;
didSuppressUnverifiedCertificateWarning = true;
// Suppress one-time warning:
// https://github.com/nodejs/node/blob/1bbe66f432591aea83555d27dd76c55fea040a0d/lib/internal/options.js#L37-L49
originalEmitWarning = process.emitWarning;
process.emitWarning = (warning, ...args) => {
if (typeof warning === 'string' && warning.includes('NODE_TLS_REJECT_UNAUTHORIZED')) {
process.emitWarning = originalEmitWarning;
return;
}
return originalEmitWarning.call(process, warning, ...args);
};
}
export async function parseTraceRaw(file: string): Promise<{ events: any[], resources: Map<string, Buffer>, actions: string[], actionObjects: ActionTraceEvent[], stacks: Map<string, StackFrame[]> }> {
const zipFS = new ZipFile(file);
const resources = new Map<string, Buffer>();
for (const entry of await zipFS.entries())
resources.set(entry, await zipFS.read(entry));
zipFS.close();
const actionMap = new Map<string, ActionTraceEvent>();
const events: any[] = [];
for (const traceFile of [...resources.keys()].filter(name => name.endsWith('.trace'))) {
for (const line of resources.get(traceFile)!.toString().split('\n')) {
if (line) {
const event = JSON.parse(line) as TraceEvent;
events.push(event);
if (event.type === 'before') {
const action: ActionTraceEvent = {
...event,
type: 'action',
endTime: 0,
};
actionMap.set(event.callId, action);
} else if (event.type === 'input') {
const existing = actionMap.get(event.callId);
existing.inputSnapshot = event.inputSnapshot;
existing.point = event.point;
} else if (event.type === 'after') {
const existing = actionMap.get(event.callId);
existing.afterSnapshot = event.afterSnapshot;
existing.endTime = event.endTime;
existing.error = event.error;
existing.result = event.result;
}
}
}
}
for (const networkFile of [...resources.keys()].filter(name => name.endsWith('.network'))) {
for (const line of resources.get(networkFile)!.toString().split('\n')) {
if (line)
events.push(JSON.parse(line));
}
}
const stacks: Map<string, StackFrame[]> = new Map();
for (const stacksFile of [...resources.keys()].filter(name => name.endsWith('.stacks'))) {
for (const [key, value] of parseClientSideCallMetadata(JSON.parse(resources.get(stacksFile)!.toString())))
stacks.set(key, value);
}
const actionObjects = [...actionMap.values()];
actionObjects.sort((a, b) => a.startTime - b.startTime);
return {
events,
resources,
actions: actionObjects.map(a => a.apiName),
actionObjects,
stacks,
};
}
export async function parseTrace(file: string): Promise<{ resources: Map<string, Buffer>, events: (EventTraceEvent | ConsoleMessageTraceEvent)[], actions: ActionTraceEvent[], apiNames: string[], traceModel: TraceModel, model: MultiTraceModel, actionTree: string[], errors: string[] }> {
const backend = new TraceBackend(file);
const traceModel = new TraceModel();
await traceModel.load(backend, () => {});
const model = new MultiTraceModel(traceModel.contextEntries);
const { rootItem } = buildActionTree(model.actions);
const actionTree: string[] = [];
const visit = (actionItem: ActionTreeItem, indent: string) => {
actionTree.push(`${indent}${actionItem.action?.apiName || actionItem.id}`);
for (const child of actionItem.children)
visit(child, indent + ' ');
};
rootItem.children.forEach(a => visit(a, ''));
return {
apiNames: model.actions.map(a => a.apiName),
resources: backend.entries,
actions: model.actions,
events: model.events,
errors: model.errors.map(e => e.message),
model,
traceModel,
actionTree,
};
}
export async function parseHar(file: string): Promise<Map<string, Buffer>> {
const zipFS = new ZipFile(file);
const resources = new Map<string, Buffer>();
for (const entry of await zipFS.entries())
resources.set(entry, await zipFS.read(entry));
zipFS.close();
return resources;
}
export function waitForTestLog<T>(page: Page, prefix: string): Promise<T> {
return new Promise<T>(resolve => {
page.on('console', message => {
const text = message.text();
if (text.startsWith(prefix)) {
const json = text.substring(prefix.length);
resolve(JSON.parse(json));
}
});
});
}
const ansiRegex = new RegExp('[\\u001B\\u009B][[\\]()#;?]*(?:(?:(?:[a-zA-Z\\d]*(?:;[-a-zA-Z\\d\\/#&.:=?%@~_]*)*)?\\u0007)|(?:(?:\\d{1,4}(?:;\\d{0,4})*)?[\\dA-PR-TZcf-ntqry=><~]))', 'g');
export function stripAnsi(str: string): string {
return str.replace(ansiRegex, '');
}
class TraceBackend implements TraceModelBackend {
private _fileName: string;
private _entriesPromise: Promise<Map<string, Buffer>>;
readonly entries = new Map<string, Buffer>();
constructor(fileName: string) {
this._fileName = fileName;
this._entriesPromise = this._readEntries();
}
private async _readEntries(): Promise<Map<string, Buffer>> {
const zipFS = new ZipFile(this._fileName);
for (const entry of await zipFS.entries())
this.entries.set(entry, await zipFS.read(entry));
zipFS.close();
return this.entries;
}
isLive() {
return false;
}
traceURL() {
return 'file://' + this._fileName;
}
async entryNames(): Promise<string[]> {
const entries = await this._entriesPromise;
return [...entries.keys()];
}
async hasEntry(entryName: string): Promise<boolean> {
const entries = await this._entriesPromise;
return entries.has(entryName);
}
async readText(entryName: string): Promise<string | undefined> {
const entries = await this._entriesPromise;
const entry = entries.get(entryName);
if (!entry)
return;
return entry.toString();
}
async readBlob(entryName: string) {
const entries = await this._entriesPromise;
const entry = entries.get(entryName);
return entry as any;
}
}