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<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE html [
  <!ENTITY % htmlDTD
    PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
    "DTD/xhtml1-strict.dtd">
  %htmlDTD;
  <!ENTITY % netErrorDTD
    SYSTEM "chrome://global/locale/netError.dtd">
  %netErrorDTD;
  <!ENTITY % globalDTD
    SYSTEM "chrome://global/locale/global.dtd">
  %globalDTD;
]>

<!-- 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/. -->

<html xmlns="http://www.w3.org/1999/xhtml">
  <head>
    <title>&loadError.label;</title>
    <link rel="stylesheet" href="chrome://browser/skin/aboutNetError.css" type="text/css" media="all" />
    <!-- If the location of the favicon is changed here, the FAVICON_ERRORPAGE_URL symbol in
         toolkit/components/places/src/nsFaviconService.h should be updated. -->
    <link rel="icon" type="image/png" id="favicon" href="chrome://global/skin/icons/warning-16.png"/>

    <script type="application/javascript"><![CDATA[
      // Error url MUST be formatted like this:
      //   moz-neterror:page?e=error&u=url&d=desc
      //
      // or optionally, to specify an alternate CSS class to allow for
      // custom styling and favicon:
      //
      //   moz-neterror:page?e=error&u=url&s=classname&d=desc

      // 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.

      function getErrorCode()
      {
        var url = document.documentURI;
        var error = url.search(/e\=/);
        var duffUrl = url.search(/\&u\=/);
        return decodeURIComponent(url.slice(error + 2, duffUrl));
      }

      function getCSSClass()
      {
        var url = document.documentURI;
        var matches = url.match(/s\=([^&]+)\&/);
        // s is optional, if no match just return nothing
        if (!matches || matches.length < 2)
          return "";

        // parenthetical match is the second entry
        return decodeURIComponent(matches[1]);
      }

      function getDescription()
      {
        var url = document.documentURI;
        var desc = url.search(/d\=/);

        // desc == -1 if not found; if so, return an empty string
        // instead of what would turn out to be portions of the URI
        if (desc == -1)
          return "";

        return decodeURIComponent(url.slice(desc + 2));
      }

      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 doOverride(buttonEl) {
        var event = new CustomEvent("AboutNetErrorOverride", {bubbles:true});
        document.dispatchEvent(event);
        retryThis(buttonEl);
      }

      function toggleDisplay(node) {
        toggle = {
          '': 'block',
          'none': 'block',
          'block': 'none'
        };
        node.style.display = toggle[node.style.display];
      }

      function showCertificateErrorReporting() {
        // Display error reporting UI
        document.getElementById('certificateErrorReporting').style.display = 'block';
      }

      function showAdvancedButton(allowOverride) {
        // Display weak crypto advanced UI
        document.getElementById("buttonContainer").style.display = "flex";
        document.getElementById("advancedButton").style.display = "block";
        document.getElementById("errorTryAgain").style.display = "none";

        // Get the hostname and add it to the panel
        var panel = document.getElementById("weakCryptoAdvancedPanel");
        for (var span of panel.querySelectorAll("span.hostname")) {
          span.textContent = document.location.hostname;
        }
        panel.replaceChild(document.getElementById("errorLongDesc"),
                           document.getElementById("advancedLongDesc"));

        // Register click handler for the weakCryptoAdvancedPanel
        document.getElementById("advancedButton")
                .addEventListener("click", function togglePanelVisibility() {
          toggleDisplay(panel);

          if (panel.style.display == "block") {
            // send event to trigger telemetry ping
            var event = new CustomEvent("AboutNetErrorUIExpanded", {bubbles:true});
            document.dispatchEvent(event);
          }
        });

        if (allowOverride) {
          document.getElementById("overrideWeakCryptoPanel").style.display = "flex";
          var overrideLink = document.getElementById("overrideWeakCrypto");
          overrideLink.addEventListener("click", () => doOverride(overrideLink), false);
        }
      }

      function sendErrorReport() {
        var event = new CustomEvent("AboutNetErrorSendReport", {bubbles:true});

        document.dispatchEvent(event);
      }

      function initPage()
      {
        var err = getErrorCode();

        // if it's an unknown error or there's no title or description
        // defined, get the generic message
        var errTitle = document.getElementById("et_" + err);
        var errDesc  = document.getElementById("ed_" + err);
        if (!errTitle || !errDesc)
        {
          errTitle = document.getElementById("et_generic");
          errDesc  = document.getElementById("ed_generic");
        }

        var title = document.getElementById("errorTitleText");
        if (title)
        {
          title.parentNode.replaceChild(errTitle, title);
          // change id to the replaced child's id so styling works
          errTitle.id = "errorTitleText";
        }

        var sd = document.getElementById("errorShortDescText");
        if (sd)
          sd.textContent = getDescription();

        var ld = document.getElementById("errorLongDesc");
        if (ld)
        {
          ld.parentNode.replaceChild(errDesc, ld);
          // change id to the replaced child's id so styling works
          errDesc.id = "errorLongDesc";
        }

        if (err == "sslv3Used") {
          document.getElementById("errorTitle").setAttribute("sslv3", "true");
          document.getElementById("errorTryAgain").style.display = "none";
          document.getElementById("learnMoreContainer").style.display = "block";
          var learnMoreLink = document.getElementById("learnMoreLink");
          learnMoreLink.href = "https://support.mozilla.org/kb/how-resolve-sslv3-error-messages-firefox";
          document.getElementById("buttonContainer").style.display = "flex";
        }

        if (err == "weakCryptoUsed") {
          document.getElementById("errorTitle").setAttribute("weakCrypto", "true");
        }

        // remove undisplayed errors to avoid bug 39098
        var errContainer = document.getElementById("errorContainer");
        errContainer.parentNode.removeChild(errContainer);

        var className = getCSSClass();
        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.className = className;

          // Also, if they specified a CSS class, they must supply their own
          // favicon.  In order to trigger the browser to repaint though, we
          // need to remove/add the link element.
          var favicon = document.getElementById("favicon");
          var faviconParent = favicon.parentNode;
          faviconParent.removeChild(favicon);
          favicon.setAttribute("href", "chrome://global/skin/icons/" + className + "_favicon.png");
          faviconParent.appendChild(favicon);
        }
        if (className == "expertBadCert") {
          showSecuritySection();
        }

        if (err == "remoteXUL") {
          // Remove the "Try again" button for remote XUL errors given that
          // it is useless.
          document.getElementById("errorTryAgain").style.display = "none";
        }

        if (err == "cspBlocked") {
          // Remove the "Try again" button for CSP violations, since it's
          // almost certainly useless. (Bug 553180)
          document.getElementById("errorTryAgain").style.display = "none";
        }

        window.addEventListener("AboutNetErrorOptions", function(evt) {
        // Pinning errors are of type nssFailure2
          if (getErrorCode() == "nssFailure2" || getErrorCode() == "weakCryptoUsed") {
            document.getElementById("learnMoreContainer").style.display = "block";
            var learnMoreLink = document.getElementById("learnMoreLink");
            // nssFailure2 also gets us other non-overrideable errors. Choose
            // a "learn more" link based on description:
            if (getDescription().includes("mozilla_pkix_error_key_pinning_failure")) {
              learnMoreLink.href = "https://support.mozilla.org/kb/certificate-pinning-reports";
            }
            if (getErrorCode() == "weakCryptoUsed") {
              learnMoreLink.href = "https://support.mozilla.org/kb/how-resolve-weak-crypto-error-messages-firefox";
            }

            var options = JSON.parse(evt.detail);
            if (options && options.enabled) {
              var checkbox = document.getElementById('automaticallyReportInFuture');
              showCertificateErrorReporting();
              if (options.automatic) {
                // set the checkbox
                checkbox.checked = true;
              }

              checkbox.addEventListener('change', function(evt) {
                  var event = new CustomEvent("AboutNetErrorSetAutomatic",
                    {bubbles:true, detail:evt.target.checked});
                  document.dispatchEvent(event);
                  if (evt.target.checked && reportBtn.style.display != "none") {
                    sendErrorReport();
                  }
                }, false);

              var reportBtn = document.getElementById('reportCertificateError');
              var retryBtn = document.getElementById('reportCertificateErrorRetry');

              reportBtn.addEventListener('click', sendErrorReport, false);
              retryBtn.addEventListener('click', sendErrorReport, false);
            }
          }
          if (getErrorCode() == "weakCryptoUsed" || getErrorCode() == "sslv3Used") {
            showAdvancedButton(getErrorCode() == "weakCryptoUsed");
          }
        }.bind(this), true, true);

        var event = new CustomEvent("AboutNetErrorLoad", {bubbles:true});
        document.dispatchEvent(event);

        if (err == "nssBadCert") {
          // Remove the "Try again" button for security exceptions, since it's
          // almost certainly useless.
          document.getElementById("errorTryAgain").style.display = "none";
          document.getElementById("errorPageContainer").setAttribute("class", "certerror");
        }
        else {
          // Remove the override block for non-certificate errors.  CSS-hiding
          // isn't good enough here, because of bug 39098
          var secOverride = document.getElementById("securityOverrideDiv");
          secOverride.parentNode.removeChild(secOverride);
        }
        addDomainErrorLinks();
      }

      function showSecuritySection() {
        // Swap link out, content in
        document.getElementById('securityOverrideContent').style.display = '';
        document.getElementById('securityOverrideLink').style.display = 'none';
      }

      /* Try to preserve the links contained in the error description, like
         the error code.

         Also, in the case of SSL error pages about domain mismatch, see if
         we can hyperlink the user to the correct site.  We don't want
         to do this generically since it allows MitM attacks to redirect
         users to a site under attacker control, but in certain cases
         it is safe (and helpful!) to do so.  Bug 402210
      */
      function addDomainErrorLinks() {
        // Rather than textContent, we need to treat description as HTML
        var sd = document.getElementById("errorShortDescText");
        if (sd) {
          var desc = getDescription();

          // sanitize description text - see bug 441169

          // First, find the index of the <a> tags we care about, being
          // careful not to use an over-greedy regex.
          var codeRe = /<a id="errorCode" title="([^"]+)">/;
          var codeResult = codeRe.exec(desc);
          var domainRe = /<a id="cert_domain_link" title="([^"]+)">/;
          var domainResult = domainRe.exec(desc);

          // The order of these links in the description is fixed in
          // TransportSecurityInfo.cpp:formatOverridableCertErrorMessage.
          var firstResult = domainResult;
          if(!domainResult)
            firstResult = codeResult;
          if (!firstResult)
            return;
          // Remove sd's existing children
          sd.textContent = "";

          // Everything up to the first link should be text content.
          sd.appendChild(document.createTextNode(desc.slice(0, firstResult.index)));

          // Now create the actual links.
          if (domainResult) {
            createLink(sd, "cert_domain_link", domainResult[1])
            // Append text for anything between the two links.
            sd.appendChild(document.createTextNode(desc.slice(desc.indexOf("</a>") + "</a>".length, codeResult.index)));
          }
          createLink(sd, "errorCode", codeResult[1])

          // Finally, append text for anything after the last closing </a>.
          sd.appendChild(document.createTextNode(desc.slice(desc.lastIndexOf("</a>") + "</a>".length)));
        }

        // Initialize the cert domain link.
        var link = document.getElementById('cert_domain_link');
        if (!link)
          return;

        var okHost = link.getAttribute("title");
        var thisHost = document.location.hostname;
        var proto = document.location.protocol;

        // If okHost is a wildcard domain ("*.example.com") let's
        // use "www" instead.  "*.example.com" isn't going to
        // get anyone anywhere useful. bug 432491
        okHost = okHost.replace(/^\*\./, "www.");

        /* case #1:
         * example.com uses an invalid security certificate.
         *
         * The certificate is only valid for www.example.com
         *
         * Make sure to include the "." ahead of thisHost so that
         * a MitM attack on paypal.com doesn't hyperlink to "notpaypal.com"
         *
         * We'd normally just use a RegExp here except that we lack a
         * library function to escape them properly (bug 248062), and
         * domain names are famous for having '.' characters in them,
         * which would allow spurious and possibly hostile matches.
         */
        if (okHost.endsWith("." + thisHost))
          link.href = proto + okHost;

        /* case #2:
         * browser.garage.maemo.org uses an invalid security certificate.
         *
         * The certificate is only valid for garage.maemo.org
         */
        if (thisHost.endsWith("." + okHost))
          link.href = proto + okHost;

        // If we set a link, meaning there's something helpful for
        // the user here, expand the section by default
        if (link.href && getCSSClass() != "expertBadCert")
          toggleVisibility("advancedPanel");
      }

      function createLink(el, id, text) {
        var anchorEl = document.createElement("a");
        anchorEl.setAttribute("id", id);
        anchorEl.setAttribute("title", text);
        anchorEl.appendChild(document.createTextNode(text));
        el.appendChild(anchorEl);
      }
    ]]></script>
  </head>

  <body dir="&locale.dir;">

    <!-- ERROR ITEM CONTAINER (removed during loading to avoid bug 39098) -->
    <div id="errorContainer">
      <div id="errorTitlesContainer">
        <h1 id="et_generic">&generic.title;</h1>
        <h1 id="et_dnsNotFound">&dnsNotFound.title;</h1>
        <h1 id="et_fileNotFound">&fileNotFound.title;</h1>
        <h1 id="et_malformedURI">&malformedURI.title;</h1>
        <h1 id="et_unknownProtocolFound">&unknownProtocolFound.title;</h1>
        <h1 id="et_connectionFailure">&connectionFailure.title;</h1>
        <h1 id="et_netTimeout">&netTimeout.title;</h1>
        <h1 id="et_redirectLoop">&redirectLoop.title;</h1>
        <h1 id="et_unknownSocketType">&unknownSocketType.title;</h1>
        <h1 id="et_netReset">&netReset.title;</h1>
        <h1 id="et_notCached">&notCached.title;</h1>
        <h1 id="et_netOffline">&netOffline.title;</h1>
        <h1 id="et_netInterrupt">&netInterrupt.title;</h1>
        <h1 id="et_deniedPortAccess">&deniedPortAccess.title;</h1>
        <h1 id="et_proxyResolveFailure">&proxyResolveFailure.title;</h1>
        <h1 id="et_proxyConnectFailure">&proxyConnectFailure.title;</h1>
        <h1 id="et_contentEncodingError">&contentEncodingError.title;</h1>
        <h1 id="et_unsafeContentType">&unsafeContentType.title;</h1>
        <h1 id="et_nssFailure2">&nssFailure2.title;</h1>
        <h1 id="et_nssBadCert">&nssBadCert.title;</h1>
        <h1 id="et_malwareBlocked">&malwareBlocked.title;</h1>
        <h1 id="et_unwantedBlocked">&unwantedBlocked.title;</h1>
        <h1 id="et_forbiddenBlocked">&forbiddenBlocked.title;</h1>
        <h1 id="et_cspBlocked">&cspBlocked.title;</h1>
        <h1 id="et_remoteXUL">&remoteXUL.title;</h1>
        <h1 id="et_corruptedContentError">&corruptedContentError.title;</h1>
        <h1 id="et_sslv3Used">&sslv3Used.title;</h1>
        <h1 id="et_weakCryptoUsed">&weakCryptoUsed.title;</h1>
      </div>
      <div id="errorDescriptionsContainer">
        <div id="ed_generic">&generic.longDesc;</div>
        <div id="ed_dnsNotFound">&dnsNotFound.longDesc;</div>
        <div id="ed_fileNotFound">&fileNotFound.longDesc;</div>
        <div id="ed_malformedURI">&malformedURI.longDesc;</div>
        <div id="ed_unknownProtocolFound">&unknownProtocolFound.longDesc;</div>
        <div id="ed_connectionFailure">&connectionFailure.longDesc;</div>
        <div id="ed_netTimeout">&netTimeout.longDesc;</div>
        <div id="ed_redirectLoop">&redirectLoop.longDesc;</div>
        <div id="ed_unknownSocketType">&unknownSocketType.longDesc;</div>
        <div id="ed_netReset">&netReset.longDesc;</div>
        <div id="ed_notCached">&notCached.longDesc;</div>
        <div id="ed_netOffline">&netOffline.longDesc2;</div>
        <div id="ed_netInterrupt">&netInterrupt.longDesc;</div>
        <div id="ed_deniedPortAccess">&deniedPortAccess.longDesc;</div>
        <div id="ed_proxyResolveFailure">&proxyResolveFailure.longDesc;</div>
        <div id="ed_proxyConnectFailure">&proxyConnectFailure.longDesc;</div>
        <div id="ed_contentEncodingError">&contentEncodingError.longDesc;</div>
        <div id="ed_unsafeContentType">&unsafeContentType.longDesc;</div>
        <div id="ed_nssFailure2">&nssFailure2.longDesc2;</div>
        <div id="ed_nssBadCert">&nssBadCert.longDesc2;</div>
        <div id="ed_malwareBlocked">&malwareBlocked.longDesc;</div>
        <div id="ed_unwantedBlocked">&unwantedBlocked.longDesc;</div>
        <div id="ed_forbiddenBlocked">&forbiddenBlocked.longDesc;</div>
        <div id="ed_cspBlocked">&cspBlocked.longDesc;</div>
        <div id="ed_remoteXUL">&remoteXUL.longDesc;</div>
        <div id="ed_corruptedContentError">&corruptedContentError.longDesc;</div>
        <div id="ed_sslv3Used">&sslv3Used.longDesc2;</div>
        <div id="ed_weakCryptoUsed">&weakCryptoUsed.longDesc2;</div>
      </div>
    </div>

    <!-- PAGE CONTAINER (for styling purposes only) -->
    <div id="errorPageContainer">

      <!-- Error Title -->
      <div id="errorTitle">
        <h1 id="errorTitleText" />
      </div>

      <!-- LONG CONTENT (the section most likely to require scrolling) -->
      <div id="errorLongContent">

        <!-- Short Description -->
        <div id="errorShortDesc">
          <p id="errorShortDescText" />
        </div>

        <!-- Long Description (Note: See netError.dtd for used XHTML tags) -->
        <div id="errorLongDesc" />

        <!-- Override section - For ssl errors only.  Removed on init for other
             error types.  -->
        <div id="securityOverrideDiv">
          <a id="securityOverrideLink" href="javascript:showSecuritySection();" >&securityOverride.linkText;</a>
          <div id="securityOverrideContent" style="display: none;">&securityOverride.warningContent;</div>
        </div>

        <div id="learnMoreContainer">
          <p><a href="https://support.mozilla.org/kb/what-does-your-connection-is-not-secure-mean" id="learnMoreLink" target="new">&errorReporting.learnMore;</a></p>
        </div>

        <div id="buttonContainer">
          <button id="returnButton" autocomplete="off" autofocus="true">&returnToPreviousPage.label;</button>
          <div id="buttonSpacer"></div>
          <button id="advancedButton" autocomplete="off" autofocus="true">&advanced.label;</button>
        </div>
      </div>

      <button id="errorTryAgain" autocomplete="off" onclick="retryThis(this);">&retry.label;</button>
      <script>
        // Only do autofocus if we're the toplevel frame; otherwise we
        // don't want to call attention to ourselves!  The key part is
        // that autofocus happens on insertion into the tree, so we
        // can remove the button, add @autofocus, and reinsert the
        // button.
        if (window.top == window) {
            var button = document.getElementById("errorTryAgain");
            var nextSibling = button.nextSibling;
            var parent = button.parentNode;
            parent.removeChild(button);
            button.setAttribute("autofocus", "true");
            parent.insertBefore(button, nextSibling);
        }
      </script>

      <!-- UI for option to report certificate errors to Mozilla. Removed on
           init for other error types .-->
      <div id="certificateErrorReporting">
        <p>
          <input type="checkbox" id="automaticallyReportInFuture" />
          <label for="automaticallyReportInFuture" id="automaticallyReportInFuture">&errorReporting.automatic2;</label>

          <span id="reportingState">
            <button id="reportCertificateError">&errorReporting.report;</button>
            <button id="reportCertificateErrorRetry">&errorReporting.tryAgain;</button>
            <span id="reportSendingMessage">&errorReporting.sending;</span>
            <span id="reportSentMessage">&errorReporting.sent;</span>
          </span>
        </p>
      </div>

      <div id="weakCryptoAdvancedPanel">
        <div id="weakCryptoAdvancedDescription">
          <p>&weakCryptoAdvanced.longDesc;</p>
        </div>
        <div id="advancedLongDesc" />
        <div id="overrideWeakCryptoPanel">
          <a id="overrideWeakCrypto" href="#">&weakCryptoAdvanced.override;</a>
        </div>
      </div>

    </div>

    <!--
    - Note: It is important to run the script this way, instead of using
    - an onload handler. This is because error pages are loaded as
    - LOAD_BACKGROUND, which means that onload handlers will not be executed.
    -->
    <script type="application/javascript">initPage();</script>

  </body>
</html>