Source code
Revision control
Copy as Markdown
Other Tools
/* 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
/**
* Handles the parsing of the ErrorPages URI and then passes them to injectValues
*/
function parseQuery(queryString) {
if (queryString[0] === "?") {
queryString = queryString.substr(1);
}
const query = Object.fromEntries(new URLSearchParams(queryString).entries());
injectValues(query);
updateShowSSL(query);
updateShowHSTS(query);
}
/**
* Updates the HTML elements based on the queryMap
*/
function injectValues(queryMap) {
const tryAgainButton = document.getElementById("errorTryAgain");
const continueHttpButton = document.getElementById("continueHttp");
const backFromHttpButton = document.getElementById("backFromHttp");
// Go through each element and inject the values
document.title = queryMap.title;
tryAgainButton.innerHTML = queryMap.button;
continueHttpButton.innerHTML = queryMap.continueHttpButton;
backFromHttpButton.innerHTML = queryMap.badCertGoBack;
document.getElementById("errorTitleText").innerHTML = queryMap.title;
document.getElementById("errorShortDesc").innerHTML = queryMap.description;
document.getElementById("advancedButton").innerHTML =
queryMap.badCertAdvanced;
document.getElementById("badCertTechnicalInfo").innerHTML =
queryMap.badCertTechInfo;
document.getElementById("advancedPanelBackButton").innerHTML =
queryMap.badCertGoBack;
document.getElementById("advancedPanelAcceptButton").innerHTML =
queryMap.badCertAcceptTemporary;
// If no image is passed in, remove the element so as not to leave an empty iframe
const errorImage = document.getElementById("errorImage");
if (!queryMap.image) {
errorImage.remove();
} else {
}
if (queryMap.showContinueHttp === "true") {
// On the "HTTPS-Only" error page "Try again" doesn't make sense since reloading the page
// will just show an error page again.
tryAgainButton.style.display = "none";
} else {
continueHttpButton.style.display = "none";
backFromHttpButton.style.display = "none";
}
if (queryMap.errorCode) {
const errorCode = document.getElementById("errorCode");
errorCode.textContent = queryMap.errorCode;
}
}
let advancedVisible = false;
/**
* Used to show or hide the "accept" button based on the validity of the SSL certificate
*/
function updateShowSSL(queryMap) {
/** @type {'true' | 'false'} */
const showSSL = queryMap.showSSL;
if (typeof document.addCertException === "undefined") {
document.getElementById("advancedButton").style.display = "none";
} else if (showSSL === "true") {
document.getElementById("advancedButton").style.display = "block";
} else {
document.getElementById("advancedButton").style.display = "none";
}
}
/**
* Used to show or hide the "accept" button based for the HSTS error page
*/
function updateShowHSTS(queryMap) {
const showHSTS = queryMap.showHSTS;
if (showHSTS === "true") {
document.getElementById("advancedButton").style.display = "block";
document.getElementById("advancedPanelAcceptButton").style.display = "none";
}
}
/**
* Used to display information about the SSL certificate in `error_pages.html`
*/
function toggleAdvancedAndScroll() {
const advancedPanel = document.getElementById("badCertAdvancedPanel");
if (advancedVisible) {
advancedPanel.style.display = "none";
} else {
advancedPanel.style.display = "block";
}
advancedVisible = !advancedVisible;
const horizontalLine = document.getElementById("horizontalLine");
const advancedPanelAcceptButton = document.getElementById(
"advancedPanelAcceptButton"
);
const badCertAdvancedPanel = document.getElementById("badCertAdvancedPanel");
// We know that the button is being displayed
if (badCertAdvancedPanel.style.display === "block") {
horizontalLine.hidden = false;
advancedPanelAcceptButton.scrollIntoView({
behavior: "smooth",
block: "center",
inline: "nearest",
});
} else {
horizontalLine.hidden = true;
}
}
/**
* Used to bypass an SSL pages in `error_pages.html`
*/
async function acceptAndContinue(temporary) {
try {
await document.addCertException(temporary);
location.reload();
} catch (error) {
console.error("Unexpected error: " + error);
}
}
document.addEventListener("DOMContentLoaded", function () {
if (window.history.length == 1) {
document.getElementById("advancedPanelBackButton").style.display = "none";
document.getElementById("backFromHttp").style.display = "none";
} else {
document
.getElementById("advancedPanelBackButton")
.addEventListener("click", () => window.history.back());
document
.getElementById("backFromHttp")
.addEventListener("click", () => window.history.back());
}
document
.getElementById("errorTryAgain")
.addEventListener("click", () => window.location.reload());
document
.getElementById("advancedButton")
.addEventListener("click", toggleAdvancedAndScroll);
document
.getElementById("advancedPanelAcceptButton")
.addEventListener("click", () => acceptAndContinue(true));
document
.getElementById("continueHttp")
.addEventListener("click", () => document.reloadWithHttpsOnlyException());
});
parseQuery(document.documentURI);