1 files changed, 92 insertions, 0 deletions
diff --git a/docshell/test/browser/browser_badCertDomainFixup.js b/docshell/test/browser/browser_badCertDomainFixup.js
new file mode 100644
index 0000000000..4bf6ddcef3
--- /dev/null
+++ b/docshell/test/browser/browser_badCertDomainFixup.js
@@ -0,0 +1,92 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// This test checks if we are correctly fixing https URLs by prefixing
+// with www. when we encounter a SSL_ERROR_BAD_CERT_DOMAIN error.
+// For example, https://example.com -> https://www.example.com.
+
+const PREF_BAD_CERT_DOMAIN_FIX_ENABLED =
+  "security.bad_cert_domain_error.url_fix_enabled";
+const PREF_ALLOW_HIJACKING_LOCALHOST =
+  "network.proxy.allow_hijacking_localhost";
+
+const BAD_CERT_DOMAIN_ERROR_URL = "https://badcertdomain.example.com:443";
+const FIXED_URL = "https://www.badcertdomain.example.com/";
+
+const BAD_CERT_DOMAIN_ERROR_URL2 =
+  "https://mismatch.badcertdomain.example.com:443";
+const IPV4_ADDRESS = "https://127.0.0.3:433";
+const BAD_CERT_DOMAIN_ERROR_PORT = "https://badcertdomain.example.com:82";
+
+async function verifyErrorPage(errorPageURL) {
+  let certErrorLoaded = BrowserTestUtils.waitForErrorPage(
+    gBrowser.selectedBrowser
+  );
+  BrowserTestUtils.startLoadingURIString(gBrowser, errorPageURL);
+  await certErrorLoaded;
+
+  await SpecialPowers.spawn(gBrowser.selectedBrowser, [], async function () {
+    let ec;
+    await ContentTaskUtils.waitForCondition(() => {
+      ec = content.document.getElementById("errorCode");
+      return ec.textContent;
+    }, "Error code has been set inside the advanced button panel");
+    is(
+      ec.textContent,
+      "SSL_ERROR_BAD_CERT_DOMAIN",
+      "Correct error code is shown"
+    );
+  });
+}
+
+// Test that "www." is prefixed to a https url when we encounter a bad cert domain
+// error if the "www." form is included in the certificate's subjectAltNames.
+add_task(async function prefixBadCertDomain() {
+  // Turn off the pref and ensure that we show the error page as expected.
+  Services.prefs.setBoolPref(PREF_BAD_CERT_DOMAIN_FIX_ENABLED, false);
+
+  gBrowser.selectedTab = BrowserTestUtils.addTab(gBrowser);
+  await verifyErrorPage(BAD_CERT_DOMAIN_ERROR_URL);
+  info("Cert error is shown as expected when the fixup pref is disabled");
+
+  // Turn on the pref and test that we fix the HTTPS URL.
+  Services.prefs.setBoolPref(PREF_BAD_CERT_DOMAIN_FIX_ENABLED, true);
+  gBrowser.selectedTab = BrowserTestUtils.addTab(gBrowser);
+  let loadSuccessful = BrowserTestUtils.browserLoaded(
+    gBrowser.selectedBrowser,
+    false,
+    FIXED_URL
+  );
+  BrowserTestUtils.startLoadingURIString(gBrowser, BAD_CERT_DOMAIN_ERROR_URL);
+  await loadSuccessful;
+
+  info("The URL was fixed as expected");
+
+  BrowserTestUtils.removeTab(gBrowser.selectedTab);
+  BrowserTestUtils.removeTab(gBrowser.selectedTab);
+});
+
+// Test that we don't prefix "www." to a https url when we encounter a bad cert domain
+// error under certain conditions.
+add_task(async function ignoreBadCertDomain() {
+  Services.prefs.setBoolPref(PREF_BAD_CERT_DOMAIN_FIX_ENABLED, true);
+  gBrowser.selectedTab = BrowserTestUtils.addTab(gBrowser);
+
+  // Test for when "www." form is not present in the certificate.
+  await verifyErrorPage(BAD_CERT_DOMAIN_ERROR_URL2);
+  info("Certificate error was shown as expected");
+
+  // Test that urls with IP addresses are not fixed.
+  Services.prefs.setBoolPref(PREF_ALLOW_HIJACKING_LOCALHOST, true);
+  await verifyErrorPage(IPV4_ADDRESS);
+  Services.prefs.clearUserPref(PREF_ALLOW_HIJACKING_LOCALHOST);
+  info("Certificate error was shown as expected for an IP address");
+
+  // Test that urls with ports are not fixed.
+  await verifyErrorPage(BAD_CERT_DOMAIN_ERROR_PORT);
+  info("Certificate error was shown as expected for a host with port");
+
+  BrowserTestUtils.removeTab(gBrowser.selectedTab);
+});