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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
const SCREENSHOT_FORMAT = { format: "jpeg", quality: 75 };
function RunScriptInFrame(win, script) {
const contentPrincipal = win.document.nodePrincipal;
const sandbox = Cu.Sandbox([contentPrincipal], {
sandboxName: "Report Broken Site webcompat.com helper",
sandboxPrototype: win,
sameZoneAs: win,
originAttributes: contentPrincipal.originAttributes,
});
return Cu.evalInSandbox(script, sandbox, null, "sandbox eval code", 1);
}
class ConsoleLogHelper {
static PREVIEW_MAX_ITEMS = 10;
static LOG_LEVELS = ["debug", "info", "warn", "error"];
#windowId = undefined;
constructor(windowId) {
this.#windowId = windowId;
}
getLoggedMessages(alsoIncludePrivate = true) {
return this.getConsoleAPIMessages().concat(
this.getScriptErrors(alsoIncludePrivate)
);
}
getConsoleAPIMessages() {
const ConsoleAPIStorage = Cc[
"@mozilla.org/consoleAPI-storage;1"
].getService(Ci.nsIConsoleAPIStorage);
let messages = ConsoleAPIStorage.getEvents(this.#windowId);
return messages.map(evt => {
const { columnNumber, filename, level, lineNumber, timeStamp } = evt;
const args = [];
for (const arg of evt.arguments) {
args.push(this.#getArgs(arg));
}
const message = {
level,
log: args,
uri: filename,
pos: `${lineNumber}:${columnNumber}`,
};
return { timeStamp, message };
});
}
getScriptErrors(alsoIncludePrivate) {
const messages = Services.console.getMessageArray();
return messages
.filter(message => {
if (message instanceof Ci.nsIScriptError) {
if (!alsoIncludePrivate && message.isFromPrivateWindow) {
return false;
}
if (this.#windowId && this.#windowId !== message.innerWindowID) {
return false;
}
return true;
}
// If this is not an nsIScriptError and we need to do window-based
// filtering we skip this message.
return false;
})
.map(error => {
const {
timeStamp,
errorMessage,
sourceName,
lineNumber,
columnNumber,
logLevel,
} = error;
const message = {
level: ConsoleLogHelper.LOG_LEVELS[logLevel],
log: [errorMessage],
uri: sourceName,
pos: `${lineNumber}:${columnNumber}`,
};
return { timeStamp, message };
});
}
#getPreview(value) {
switch (typeof value) {
case "symbol":
return value.toString();
case "function":
return "function ()";
case "object":
if (value === null) {
return null;
}
if (Array.isArray(value)) {
return `(${value.length})[...]`;
}
return "{...}";
case "undefined":
return "undefined";
default:
try {
structuredClone(value);
} catch (_) {
return `${value}` || "?";
}
return value;
}
}
#getArrayPreview(arr) {
const preview = [];
let count = 0;
for (const value of arr) {
if (++count > ConsoleLogHelper.PREVIEW_MAX_ITEMS) {
break;
}
preview.push(this.#getPreview(value));
}
return preview;
}
#getObjectPreview(obj) {
const preview = {};
let count = 0;
for (const key of Object.keys(obj)) {
if (++count > ConsoleLogHelper.PREVIEW_MAX_ITEMS) {
break;
}
preview[key] = this.#getPreview(obj[key]);
}
return preview;
}
#getArgs(value) {
if (typeof value === "object" && value !== null) {
if (Array.isArray(value)) {
return this.#getArrayPreview(value);
}
return this.#getObjectPreview(value);
}
return this.#getPreview(value);
}
}
const FrameworkDetector = {
hasFastClickPageScript(window) {
if (window.FastClick) {
return true;
}
for (const property in window) {
try {
const proto = window[property].prototype;
if (proto && proto.needsClick) {
return true;
}
} catch (_) {}
}
return false;
},
hasMobifyPageScript(window) {
return !!window.Mobify?.Tag;
},
hasMarfeelPageScript(window) {
return !!window.marfeel;
},
checkWindow(window) {
const script = `
(function() {
function ${FrameworkDetector.hasFastClickPageScript};
function ${FrameworkDetector.hasMobifyPageScript};
function ${FrameworkDetector.hasMarfeelPageScript};
const win = window.wrappedJSObject || window;
return {
fastclick: hasFastClickPageScript(win),
mobify: hasMobifyPageScript(win),
marfeel: hasMarfeelPageScript(win),
}
})();
`;
return RunScriptInFrame(window, script);
},
};
export class ReportBrokenSiteChild extends JSWindowActorChild {
#getWebCompatInfo(docShell) {
return Promise.all([
this.#getConsoleLogs(docShell),
this.sendQuery("GetWebcompatInfoFromParentProcess", SCREENSHOT_FORMAT),
]).then(([consoleLog, infoFromParent]) => {
const { antitracking, browser, screenshot } = infoFromParent;
const win = docShell.domWindow;
const devicePixelRatio = win.devicePixelRatio;
const frameworks = FrameworkDetector.checkWindow(win);
const { languages, userAgent } = win.navigator;
if (browser.platform.name !== "linux") {
delete browser.prefs["layers.acceleration.force-enabled"];
}
return {
antitracking,
browser,
consoleLog,
devicePixelRatio,
frameworks,
languages,
screenshot,
url: win.location.href,
userAgent,
};
});
}
async #getConsoleLogs() {
return this.#getLoggedMessages()
.flat()
.sort((a, b) => a.timeStamp - b.timeStamp)
.map(m => m.message);
}
#getLoggedMessages(alsoIncludePrivate = false) {
const windowId = this.contentWindow.windowGlobalChild.innerWindowId;
const helper = new ConsoleLogHelper(windowId, alsoIncludePrivate);
return helper.getLoggedMessages();
}
#formatReportDataForWebcompatCom({
reason,
description,
reportUrl,
reporterConfig,
webcompatInfo,
}) {
const extra_labels = reporterConfig?.extra_labels || [];
const message = Object.assign({}, reporterConfig, {
url: reportUrl,
category: reason,
description,
details: {},
extra_labels,
});
const payload = {
message,
};
if (webcompatInfo) {
const {
antitracking,
browser,
devicePixelRatio,
consoleLog,
frameworks,
languages,
screenshot,
url,
userAgent,
} = webcompatInfo;
const {
blockList,
isPrivateBrowsing,
hasMixedActiveContentBlocked,
hasMixedDisplayContentBlocked,
hasTrackingContentBlocked,
btpHasPurgedSite,
} = antitracking;
message.blockList = blockList;
const { app, graphics, locales, prefs, platform, security } = browser;
const {
applicationName,
buildId,
defaultUserAgent,
updateChannel,
version,
} = app;
const {
fissionEnabled,
memoryMB,
osArchitecture,
osName,
osVersion,
device,
isTablet,
} = platform;
const additionalData = {
applicationName,
blockList,
buildId,
devicePixelRatio,
finalUserAgent: userAgent,
fissionEnabled,
gfxData: graphics,
hasMixedActiveContentBlocked,
hasMixedDisplayContentBlocked,
hasTrackingContentBlocked,
btpHasPurgedSite,
isPB: isPrivateBrowsing,
languages,
locales,
memoryMB,
osArchitecture,
osName,
osVersion,
prefs,
version,
};
if (security !== undefined && Object.keys(security).length) {
additionalData.sec = security;
}
if (device !== undefined) {
additionalData.device = device;
}
if (isTablet !== undefined) {
additionalData.isTablet = isTablet;
}
const specialPrefs = {};
for (const pref of [
"layers.acceleration.force-enabled",
"gfx.webrender.software",
]) {
specialPrefs[pref] = prefs[pref];
}
const details = Object.assign(message.details, specialPrefs, {
additionalData,
blockList,
channel: updateChannel,
defaultUserAgent,
hasTouchScreen: browser.graphics.hasTouchScreen,
});
// If the user enters a URL unrelated to the current tab,
// don't bother sending a screnshot or logs/etc
let sendRecordedPageSpecificDetails = false;
try {
const givenUri = new URL(reportUrl);
const recordedUri = new URL(url);
sendRecordedPageSpecificDetails =
givenUri.origin == recordedUri.origin &&
givenUri.pathname == recordedUri.pathname;
} catch (_) {}
if (sendRecordedPageSpecificDetails) {
payload.screenshot = screenshot;
details.consoleLog = consoleLog;
details.frameworks = frameworks;
details["mixed active content blocked"] =
antitracking.hasMixedActiveContentBlocked;
details["mixed passive content blocked"] =
antitracking.hasMixedDisplayContentBlocked;
details["tracking content blocked"] =
antitracking.hasTrackingContentBlocked
? `true (${antitracking.blockList})`
: "false";
details["btp has purged site"] = antitracking.btpHasPurgedSite;
if (antitracking.hasTrackingContentBlocked) {
extra_labels.push(
`type-tracking-protection-${antitracking.blockList}`
);
}
for (const [framework, active] of Object.entries(frameworks)) {
if (!active) {
continue;
}
details[framework] = true;
extra_labels.push(`type-${framework}`);
}
extra_labels.sort();
}
}
return payload;
}
#stripNonASCIIChars(str) {
// eslint-disable-next-line no-control-regex
return str.replace(/[^\x00-\x7F]/g, "");
}
async receiveMessage(msg) {
const { docShell } = this;
switch (msg.name) {
case "SendDataToWebcompatCom": {
const win = docShell.domWindow;
const expectedEndpoint = msg.data.endpointUrl;
if (win.location.href == expectedEndpoint) {
// Ensure that the tab has fully loaded and is waiting for messages
const onLoad = () => {
const payload = this.#formatReportDataForWebcompatCom(msg.data);
const json = this.#stripNonASCIIChars(JSON.stringify(payload));
const expectedOrigin = JSON.stringify(
new URL(expectedEndpoint).origin
);
// webcompat.com checks that the message comes from its own origin
const script = `
const wrtReady = window.wrappedJSObject?.wrtReady;
if (wrtReady) {
console.info("Report Broken Site is waiting");
}
Promise.resolve(wrtReady).then(() => {
console.debug(${json});
postMessage(${json}, ${expectedOrigin})
});`;
RunScriptInFrame(win, script);
};
if (win.document.readyState == "complete") {
onLoad();
} else {
win.addEventListener("load", onLoad, { once: true });
}
}
return null;
}
case "GetWebCompatInfo": {
return this.#getWebCompatInfo(docShell);
}
case "GetConsoleLog": {
return this.#getLoggedMessages();
}
}
return null;
}
}