🌈 Upstream some code related to PolicyAuditing.

chrome/browser/android/policy/policy_auditor.cc

Index: chrome/browser/android/policy/policy_auditor.cc
diff --git a/chrome/browser/android/policy/policy_auditor.cc b/chrome/browser/android/policy/policy_auditor.cc
new file mode 100644
index 0000000000000000000000000000000000000000..6347893ef9852f6397e1972af7ffc4ab61dc1f72
--- /dev/null
+++ b/chrome/browser/android/policy/policy_auditor.cc
@@ -0,0 +1,71 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/android/policy/policy_auditor.h"
+
+#include "content/public/browser/navigation_entry.h"
+#include "content/public/browser/render_process_host.h"
+#include "content/public/browser/web_contents.h"
+#include "content/public/common/ssl_status.h"
+#include "jni/PolicyAuditor_jni.h"
+#include "net/cert/cert_status_flags.h"
+
+int GetCertificateFailure(JNIEnv* env,

[Bernhard Bauer, 2016/04/28 16:33:08]

Just to check: the generated JNI binding declares this as static, right?

[Yaron, 2016/04/28 19:30:49]

yep (cause it was static in java):

static jint GetCertificateFailure(JNIEnv* env, const JavaParamRef<jclass>&
    jcaller,
    const JavaParamRef<jobject>& webContents);

+                          const JavaParamRef<jclass>& obj,
+                          const JavaParamRef<jobject>& java_web_contents) {
+  // This function is similar to
+  // ToolbarModelImpl::GetSecurityLevelForWebContents, but has a custom mapping
+  // for policy auditing
+  enum CertificateFailure {

[Bernhard Bauer, 2016/04/28 16:33:08]

You could put this into a header and generate the Java enum from it with
java_cpp_enum?

[Yaron, 2016/04/28 19:30:49]

Done.

+    NONE = 0,
+    CERTIFICATE_FAIL_UNSPECIFIED = 1,
+    CERTIFICATE_FAIL_UNTRUSTED = 2,
+    CERTIFICATE_FAIL_REVOKED = 3,
+    CERTIFICATE_FAIL_NOT_YET_VALID = 4,
+    CERTIFICATE_FAIL_EXPIRED = 5,
+    CERTIFICATE_FAIL_UNABLE_TO_CHECK_REVOCATION_STATUS = 6,
+  };
+
+  content::WebContents* web_contents =
+      content::WebContents::FromJavaWebContents(java_web_contents);
+  content::NavigationEntry* entry =
+      web_contents->GetController().GetVisibleEntry();
+  if (!entry)
+    return NONE;
+
+  const content::SSLStatus& ssl = entry->GetSSL();
+  switch (ssl.security_style) {
+    case content::SECURITY_STYLE_UNKNOWN:
+    case content::SECURITY_STYLE_UNAUTHENTICATED:
+      return NONE;
+
+    case content::SECURITY_STYLE_AUTHENTICATION_BROKEN:
+    case content::SECURITY_STYLE_AUTHENTICATED: {
+      if (net::IsCertStatusError(ssl.cert_status)) {
+        if (ssl.cert_status & net::CERT_STATUS_AUTHORITY_INVALID)
+          return CERTIFICATE_FAIL_UNTRUSTED;
+        if (ssl.cert_status & net::CERT_STATUS_REVOKED)
+          return CERTIFICATE_FAIL_REVOKED;
+        // No mapping for CERTIFICATE_FAIL_NOT_YET_VALID.
+        if (ssl.cert_status & net::CERT_STATUS_DATE_INVALID)
+          return CERTIFICATE_FAIL_EXPIRED;
+        if (ssl.cert_status & net::CERT_STATUS_UNABLE_TO_CHECK_REVOCATION)
+          return CERTIFICATE_FAIL_UNABLE_TO_CHECK_REVOCATION_STATUS;
+        return CERTIFICATE_FAIL_UNSPECIFIED;
+      }
+      if (!!(ssl.content_status &

[Bernhard Bauer, 2016/04/28 16:33:08]

Is the cast to bool necessary if we're using this in an if-statement anyway?

[Yaron, 2016/04/28 19:30:49]

Just copied from internal tree

+             content::SSLStatus::DISPLAYED_INSECURE_CONTENT))
+        return CERTIFICATE_FAIL_UNSPECIFIED;

[Bernhard Bauer, 2016/04/28 16:33:08]

I think if the condition is long enough to require multiple lines, it makes
sense to add braces to the body for readability.

[Yaron, 2016/04/28 19:30:49]

Done.

+      // Secure content, no certificate errors.
+      return NONE;
+    }
+    default:

[Bernhard Bauer, 2016/04/28 16:33:08]

What other values are there? Could we remove the default case (moving the
NOTREACHED() and return out of the switch), so that the compiler will catch it
if we should forget a value?

[Yaron, 2016/04/28 19:30:49]

Done.

+      NOTREACHED();
+      return NONE;
+  }
+}
+
+bool RegisterPolicyAuditor(JNIEnv* env) {
+  return RegisterNativesImpl(env);
+}