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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
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
// The following parameters are parsed from the error URL:
// e - the error code
// s - custom CSS class to allow alternate styling/favicons
// d - error description
// Note that this file uses document.documentURI to get
// the URL (with the format from above). This is because
// document.location.href gets the current URI off the docshell,
// which is the URL displayed in the location bar, i.e.
// the URI that the user attempted to load.
// setting up the event listeners and initializing the page
// in this way given that window.onload won't work here
document.getElementById("technicalContentHeading")
.addEventListener("click", function() { toggle("technicalContent"); });
document.getElementById("expertContentHeading")
.addEventListener("click", function() { toggle("expertContent"); });
let gSearchParams;
// Set to true on init if the error code is nssBadCert.
let gIsCertError;
// Set to true on init if a neterror.
let gIsNetError;
initPage();
function retryThis(buttonEl) {
// Note: The application may wish to handle switching off "offline mode"
// before this event handler runs, but using a capturing event handler.
// Session history has the URL of the page that failed
// to load, not the one of the error page. So, just call
// reload(), which will also repost POST data correctly.
try {
location.reload();
} catch (e) {
// We probably tried to reload a URI that caused an exception to
// occur; e.g. a nonexistent file.
}
buttonEl.disabled = true;
}
function initPage() {
gSearchParams = new URLSearchParams(document.documentURI.split("?")[1]);
let err = gSearchParams.get("e");
// List of neterror pages which have no error code and
// could have an illustration instead.
let illustratedErrors = [
"malformedURI", "dnsNotFound", "connectionFailure", "netInterrupt",
"netTimeout", "netReset", "netOffline",
];
if (illustratedErrors.includes(err)) {
document.body.classList.add("illustrated", err);
}
gIsCertError = (err == "nssBadCert");
gIsNetError = (document.documentURI.startsWith("about:neterror"));
let pageTitle = document.getElementById("ept_" + err);
if (pageTitle) {
document.title = pageTitle.textContent;
}
// If it's an unknown error or there's no title or description defined,
// get the generic message.
let errTitle = document.getElementById("et_" + err);
let errDesc = document.getElementById("ed_" + err);
if (!errTitle || !errDesc) {
errTitle = document.getElementById("et_generic");
errDesc = document.getElementById("ed_generic");
}
let title = document.getElementById("errorTitleText");
if (title) {
title.innerHTML = errTitle.innerHTML;
}
let sd = document.getElementById("errorShortDescText");
if (sd) {
if (gIsCertError) {
sd.innerHTML = errDesc.innerHTML;
} else if (!err || err == "unknownProtocolFound") {
sd.remove();
}
}
let xd = document.getElementById("errorShortDescExtra");
if (xd) {
let errExtra = document.getElementById("ex_" + err);
if (gIsCertError && errExtra) {
xd.innerHTML = errExtra.innerHTML;
} else {
xd.remove();
}
}
let ld = document.getElementById("errorLongDesc");
if (ld && !gIsCertError) {
ld.innerHTML = errDesc.innerHTML;
}
// Remove undisplayed errors to avoid bug 39098.
let errContainer = document.getElementById("errorContainer");
errContainer.remove();
if (gIsCertError || err == "inadequateSecurityError") {
for (let host of document.querySelectorAll(".hostname")) {
host.textContent = location.host;
}
}
if (gIsCertError || err == "sslv3Used") {
document.body.classList.add("certerror");
}
if (gIsCertError || err == "remoteXUL" || err == "cspBlocked" ||
err == "inadequateSecurityError") {
// Remove the "Try again" button for certificate errors, remote XUL errors,
// CSP violations (Bug 553180) and HTTP/2 inadequate security,
// given that it is useless.
document.getElementById("netErrorButtonContainer").style.display = "none";
}
let className = gSearchParams.get("s");
if (className && className != "expertBadCert") {
// Associate a CSS class with the root of the page, if one was passed in,
// to allow custom styling.
// Not "expertBadCert" though, don't want to deal with the favicon
document.documentElement.classList.add(className);
}
if (className == "expertBadCert") {
toggle("technicalContent");
toggle("expertContent");
}
// Disallow overrides if this is a Strict-Transport-Security
// host and the cert is bad (STS Spec section 7.3);
// or if the cert error is in a frame (bug 633691).
if (className == "badStsCert" || window != top || !gIsCertError) {
let expertContent = document.getElementById("expertContent");
expertContent.remove();
}
if (className == "badStsCert") {
document.getElementById("badStsCertExplanation").removeAttribute("hidden");
}
// For neterrors set a suitable class.
if (gIsNetError) {
document.body.classList.add("neterror");
}
// For neterrors and null error codes do not show the What Should I Do and
// Technical Details sections.
if (gIsNetError || !err) {
let whatShould = document.getElementById("whatShouldIDoContent");
whatShould.remove();
let technicalContent = document.getElementById("technicalContent");
technicalContent.remove();
}
var event = new CustomEvent("AboutNetAndCertErrorLoad", {bubbles: true});
document.dispatchEvent(event);
}
function toggle(id) {
var el = document.getElementById(id);
if (el.hasAttribute("collapsed"))
el.removeAttribute("collapsed");
else
el.setAttribute("collapsed", true);
}
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