Ignore insecure parts of CSP in extensions and allow extension to load

extensions/common/csp_validator_unittest.cc

 // Copyright 2013 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 "extensions/common/csp_validator.h"
+#include "extensions/common/error_utils.h"
+#include "extensions/common/install_warning.h"
+#include "extensions/common/manifest_constants.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using extensions::csp_validator::ContentSecurityPolicyIsLegal;
 using extensions::csp_validator::ContentSecurityPolicyIsSecure;
 using extensions::csp_validator::ContentSecurityPolicyIsSandboxed;
 using extensions::csp_validator::OPTIONS_NONE;
 using extensions::csp_validator::OPTIONS_ALLOW_UNSAFE_EVAL;
 using extensions::csp_validator::OPTIONS_ALLOW_INSECURE_OBJECT_SRC;
+using extensions::ErrorUtils;
+using extensions::InstallWarning;
 using extensions::Manifest;
 
+namespace {
+
+std::string InsecureValueWarning(const std::string& directive,
+                                 const std::string& value) {
+  return ErrorUtils::FormatErrorMessage(
+      extensions::manifest_errors::kInvalidCSPInsecureValue, value, directive);
+}
+
+std::string MissingSecureSrcWarning(const std::string& directive) {
+  return ErrorUtils::FormatErrorMessage(
+      extensions::manifest_errors::kInvalidCSPMissingSecureSrc, directive);
+}
+
+};  // namespace
+
 TEST(ExtensionCSPValidator, IsLegal) {
   EXPECT_TRUE(ContentSecurityPolicyIsLegal("foo"));
   EXPECT_TRUE(ContentSecurityPolicyIsLegal(
       "default-src 'self'; script-src http://www.google.com"));
   EXPECT_FALSE(ContentSecurityPolicyIsLegal(
       "default-src 'self';\nscript-src http://www.google.com"));
   EXPECT_FALSE(ContentSecurityPolicyIsLegal(
       "default-src 'self';\rscript-src http://www.google.com"));
   EXPECT_FALSE(ContentSecurityPolicyIsLegal(
       "default-src 'self';,script-src http://www.google.com"));
 }
 
 TEST(ExtensionCSPValidator, IsSecure) {
-  EXPECT_FALSE(
-      ContentSecurityPolicyIsSecure(std::string(), OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_FALSE(ContentSecurityPolicyIsSecure("img-src https://google.com",
-                                             OPTIONS_ALLOW_UNSAFE_EVAL));
-
-  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
-      "default-src *", OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
-      "default-src 'self'", OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
-      "default-src 'none'", OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
-      "default-src 'self' ftp://google.com", OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
-      "default-src 'self' https://google.com", OPTIONS_ALLOW_UNSAFE_EVAL));
-
-  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
-      "default-src *; default-src 'self'", OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
-      "default-src 'self'; default-src *", OPTIONS_ALLOW_UNSAFE_EVAL));
+  std::string csp;
+  std::vector<InstallWarning> warnings;
+
+  warnings.push_back(InstallWarning("should not be removed"));
+  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
+      std::string(), OPTIONS_ALLOW_UNSAFE_EVAL, &csp, &warnings));
+  EXPECT_EQ("script-src 'self' chrome-extension-resource:; object-src 'self';",
+            csp);
+  EXPECT_EQ(3U, warnings.size());
+  // ContentSecurityPolicyIsSecure should append (not replace) warnings.
+  EXPECT_EQ("should not be removed", warnings[0].message);
+  EXPECT_EQ(MissingSecureSrcWarning("script-src"), warnings[1].message);
+  EXPECT_EQ(MissingSecureSrcWarning("object-src"), warnings[2].message);
+  warnings.clear();
+
+  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
+      "img-src https://google.com", OPTIONS_ALLOW_UNSAFE_EVAL, &csp,
+      &warnings));
+  EXPECT_EQ("img-src https://google.com; script-src 'self'"
+            " chrome-extension-resource:; object-src 'self';", csp);
+  EXPECT_EQ(2U, warnings.size());
+  EXPECT_EQ(MissingSecureSrcWarning("script-src"), warnings[0].message);
+  EXPECT_EQ(MissingSecureSrcWarning("object-src"), warnings[1].message);
+  warnings.clear();
+
+  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
+      "script-src a b", OPTIONS_ALLOW_UNSAFE_EVAL, &csp, &warnings));
+  EXPECT_EQ("script-src; object-src 'self';", csp);
+  EXPECT_EQ(3U, warnings.size());
+  EXPECT_EQ(InsecureValueWarning("script-src", "a"), warnings[0].message);
+  EXPECT_EQ(InsecureValueWarning("script-src", "b"), warnings[1].message);
+  EXPECT_EQ(MissingSecureSrcWarning("object-src"), warnings[2].message);
+  warnings.clear();
+
+  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
+      "default-src *", OPTIONS_ALLOW_UNSAFE_EVAL, &csp, &warnings));
+  EXPECT_EQ("default-src;", csp);
+  EXPECT_EQ(1U, warnings.size());
+  EXPECT_EQ(InsecureValueWarning("default-src", "*"), warnings[0].message);
+  warnings.clear();
+
+  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
+      "default-src 'self'", OPTIONS_ALLOW_UNSAFE_EVAL, NULL, NULL));
+  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
+      "default-src 'none'", OPTIONS_ALLOW_UNSAFE_EVAL, NULL, NULL));
+
+  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
+      "default-src 'self' ftp://google.com", OPTIONS_ALLOW_UNSAFE_EVAL, &csp,
+      &warnings));
+  EXPECT_EQ("default-src 'self';", csp);
+  EXPECT_EQ(1U, warnings.size());
+  EXPECT_EQ(InsecureValueWarning("default-src", "ftp://google.com"),
+            warnings[0].message);
+  warnings.clear();
+
+  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
+      "default-src 'self' https://google.com", OPTIONS_ALLOW_UNSAFE_EVAL, NULL,
+      NULL));
+
+  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
+      "default-src *; default-src 'self'", OPTIONS_ALLOW_UNSAFE_EVAL, &csp,
+      &warnings));
+  EXPECT_EQ("default-src; default-src 'self';", csp);
+  EXPECT_EQ(1U, warnings.size());
+  EXPECT_EQ(InsecureValueWarning("default-src", "*"), warnings[0].message);
+  warnings.clear();
+
+  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
+      "default-src 'self'; default-src *", OPTIONS_ALLOW_UNSAFE_EVAL, NULL,
+      NULL));
   EXPECT_FALSE(ContentSecurityPolicyIsSecure(
       "default-src 'self'; default-src *; script-src *; script-src 'self'",
-       OPTIONS_ALLOW_UNSAFE_EVAL));
+       OPTIONS_ALLOW_UNSAFE_EVAL, &csp, &warnings));
+  EXPECT_EQ("default-src 'self'; default-src; script-src; script-src 'self';",
+            csp);
+  // No warning about "object-src *" because it comes after "object-src 'self'".
+  EXPECT_EQ(1U, warnings.size());
+  EXPECT_EQ(InsecureValueWarning("script-src", "*"), warnings[0].message);
+  warnings.clear();
+
   EXPECT_TRUE(ContentSecurityPolicyIsSecure(
       "default-src 'self'; default-src *; script-src 'self'; script-src *",
-      OPTIONS_ALLOW_UNSAFE_EVAL));
-
-  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
-      "default-src *; script-src 'self'", OPTIONS_ALLOW_UNSAFE_EVAL));
+      OPTIONS_ALLOW_UNSAFE_EVAL, NULL, NULL));
+
+  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
+      "default-src *; script-src 'self'", OPTIONS_ALLOW_UNSAFE_EVAL, &csp,
+      &warnings));
+  EXPECT_EQ("default-src; script-src 'self';", csp);
+  EXPECT_EQ(1U, warnings.size());
+  EXPECT_EQ(InsecureValueWarning("default-src", "*"), warnings[0].message);
+  warnings.clear();
+
   EXPECT_FALSE(ContentSecurityPolicyIsSecure(
       "default-src *; script-src 'self'; img-src 'self'",
-      OPTIONS_ALLOW_UNSAFE_EVAL));
+      OPTIONS_ALLOW_UNSAFE_EVAL, &csp, &warnings));
+  EXPECT_EQ("default-src; script-src 'self'; img-src 'self';", csp);
+  EXPECT_EQ(1U, warnings.size());
+  EXPECT_EQ(InsecureValueWarning("default-src", "*"), warnings[0].message);
+  warnings.clear();
+
   EXPECT_TRUE(ContentSecurityPolicyIsSecure(
       "default-src *; script-src 'self'; object-src 'self'",
-      OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
-      "script-src 'self'; object-src 'self'", OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
-      "default-src 'unsafe-eval'", OPTIONS_ALLOW_UNSAFE_EVAL));
-
-  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
-      "default-src 'unsafe-eval'", OPTIONS_NONE));
-  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
-      "default-src 'unsafe-inline'", OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
-      "default-src 'unsafe-inline' 'none'", OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
-      "default-src 'self' http://google.com", OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
-      "default-src 'self' https://google.com", OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
-      "default-src 'self' chrome://resources", OPTIONS_ALLOW_UNSAFE_EVAL));
+      OPTIONS_ALLOW_UNSAFE_EVAL, NULL, NULL));
+  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
+      "script-src 'self'; object-src 'self'", OPTIONS_ALLOW_UNSAFE_EVAL, NULL,
+      NULL));
+  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
+      "default-src 'unsafe-eval'", OPTIONS_ALLOW_UNSAFE_EVAL, NULL, NULL));
+
+  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
+      "default-src 'unsafe-eval'", OPTIONS_NONE, &csp, &warnings));
+  EXPECT_EQ("default-src;", csp);
+  EXPECT_EQ(1U, warnings.size());
+  EXPECT_EQ(InsecureValueWarning("default-src", "'unsafe-eval'"),
+            warnings[0].message);
+  warnings.clear();
+
+  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
+      "default-src 'unsafe-inline'", OPTIONS_ALLOW_UNSAFE_EVAL, &csp,
+      &warnings));
+  EXPECT_EQ("default-src;", csp);
+  EXPECT_EQ(1U, warnings.size());
+  EXPECT_EQ(InsecureValueWarning("default-src", "'unsafe-inline'"),
+            warnings[0].message);
+  warnings.clear();
+
+  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
+      "default-src 'unsafe-inline' 'none'", OPTIONS_ALLOW_UNSAFE_EVAL, &csp,
+      &warnings));
+  EXPECT_EQ("default-src 'none';", csp);
+  EXPECT_EQ(1U, warnings.size());
+  EXPECT_EQ(InsecureValueWarning("default-src", "'unsafe-inline'"),
+            warnings[0].message);
+  warnings.clear();
+
+  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
+      "default-src 'self' http://google.com", OPTIONS_ALLOW_UNSAFE_EVAL, &csp,
+      &warnings));
+  EXPECT_EQ("default-src 'self';", csp);
+  EXPECT_EQ(1U, warnings.size());
+  EXPECT_EQ(InsecureValueWarning("default-src", "http://google.com"),
+            warnings[0].message);
+  warnings.clear();
+
+  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
+      "default-src 'self' https://google.com", OPTIONS_ALLOW_UNSAFE_EVAL, NULL,
+      NULL));
+  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
+      "default-src 'self' chrome://resources", OPTIONS_ALLOW_UNSAFE_EVAL, NULL,
+      NULL));
   EXPECT_TRUE(ContentSecurityPolicyIsSecure(
       "default-src 'self' chrome-extension://aabbcc",
-      OPTIONS_ALLOW_UNSAFE_EVAL));
+      OPTIONS_ALLOW_UNSAFE_EVAL, NULL, NULL));
   EXPECT_TRUE(ContentSecurityPolicyIsSecure(
      "default-src 'self' chrome-extension-resource://aabbcc",
-     OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
-      "default-src 'self' https:", OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
-      "default-src 'self' http:", OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
-      "default-src 'self' google.com", OPTIONS_ALLOW_UNSAFE_EVAL));
-
-  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
-      "default-src 'self' *", OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
-      "default-src 'self' *:*", OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
-      "default-src 'self' *:*/", OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
-      "default-src 'self' *:*/path", OPTIONS_ALLOW_UNSAFE_EVAL));
-  // "https://" is an invalid CSP, so it will be ignored by Blink.
-  // TODO(robwu): Change to EXPECT_FALSE once http://crbug.com/434773 is fixed.
-  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
-      "default-src 'self' https://", OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
-      "default-src 'self' https://*:*", OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
-      "default-src 'self' https://*:*/", OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
-      "default-src 'self' https://*:*/path", OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
-      "default-src 'self' https://*.com", OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
-      "default-src 'self' https://*.*.google.com/", OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
-      "default-src 'self' https://*.*.google.com:*/",
-      OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
-      "default-src 'self' https://www.*.google.com/",
-      OPTIONS_ALLOW_UNSAFE_EVAL));
+     OPTIONS_ALLOW_UNSAFE_EVAL, NULL, NULL));
+  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
+      "default-src 'self' https:", OPTIONS_ALLOW_UNSAFE_EVAL, &csp, &warnings));
+  EXPECT_EQ("default-src 'self';", csp);
+  EXPECT_EQ(1U, warnings.size());
+  EXPECT_EQ(InsecureValueWarning("default-src", "https:"), warnings[0].message);
+  warnings.clear();
+
+  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
+      "default-src 'self' http:", OPTIONS_ALLOW_UNSAFE_EVAL, &csp, &warnings));
+  EXPECT_EQ("default-src 'self';", csp);
+  EXPECT_EQ(1U, warnings.size());
+  EXPECT_EQ(InsecureValueWarning("default-src", "http:"), warnings[0].message);
+  warnings.clear();
+
+  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
+      "default-src 'self' google.com", OPTIONS_ALLOW_UNSAFE_EVAL, &csp,
+      &warnings));
+  EXPECT_EQ("default-src 'self';", csp);
+  EXPECT_EQ(1U, warnings.size());
+  EXPECT_EQ(InsecureValueWarning("default-src", "google.com"),
+            warnings[0].message);
+  warnings.clear();
+
+
+  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
+      "default-src 'self' *", OPTIONS_ALLOW_UNSAFE_EVAL, &csp, &warnings));
+  EXPECT_EQ("default-src 'self';", csp);
+  EXPECT_EQ(1U, warnings.size());
+  EXPECT_EQ(InsecureValueWarning("default-src", "*"), warnings[0].message);
+  warnings.clear();
+
+  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
+      "default-src 'self' *:*", OPTIONS_ALLOW_UNSAFE_EVAL, &csp, &warnings));
+  EXPECT_EQ("default-src 'self';", csp);
+  EXPECT_EQ(1U, warnings.size());
+  EXPECT_EQ(InsecureValueWarning("default-src", "*:*"), warnings[0].message);
+  warnings.clear();
+
+  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
+      "default-src 'self' *:*/", OPTIONS_ALLOW_UNSAFE_EVAL, &csp, &warnings));
+  EXPECT_EQ("default-src 'self';", csp);
+  EXPECT_EQ(1U, warnings.size());
+  EXPECT_EQ(InsecureValueWarning("default-src", "*:*/"), warnings[0].message);
+  warnings.clear();
+
+  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
+      "default-src 'self' *:*/path", OPTIONS_ALLOW_UNSAFE_EVAL, &csp,
+      &warnings));
+  EXPECT_EQ("default-src 'self';", csp);
+  EXPECT_EQ(1U, warnings.size());
+  EXPECT_EQ(InsecureValueWarning("default-src", "*:*/path"),
+            warnings[0].message);
+  warnings.clear();
+
+  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
+      "default-src 'self' https://", OPTIONS_ALLOW_UNSAFE_EVAL, &csp,
+      &warnings));
+  EXPECT_EQ("default-src 'self';", csp);
+  EXPECT_EQ(1U, warnings.size());
+  EXPECT_EQ(InsecureValueWarning("default-src", "https://"),
+            warnings[0].message);
+  warnings.clear();
+
+  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
+      "default-src 'self' https://*:*", OPTIONS_ALLOW_UNSAFE_EVAL, &csp,
+      &warnings));
+  EXPECT_EQ("default-src 'self';", csp);
+  EXPECT_EQ(1U, warnings.size());
+  EXPECT_EQ(InsecureValueWarning("default-src", "https://*:*"),
+            warnings[0].message);
+  warnings.clear();
+
+  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
+      "default-src 'self' https://*:*/", OPTIONS_ALLOW_UNSAFE_EVAL, &csp,
+      &warnings));
+  EXPECT_EQ("default-src 'self';", csp);
+  EXPECT_EQ(1U, warnings.size());
+  EXPECT_EQ(InsecureValueWarning("default-src", "https://*:*/"),
+            warnings[0].message);
+  warnings.clear();
+
+  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
+      "default-src 'self' https://*:*/path", OPTIONS_ALLOW_UNSAFE_EVAL, &csp,
+      &warnings));
+  EXPECT_EQ("default-src 'self';", csp);
+  EXPECT_EQ(1U, warnings.size());
+  EXPECT_EQ(InsecureValueWarning("default-src", "https://*:*/path"),
+            warnings[0].message);
+  warnings.clear();
+
+  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
+      "default-src 'self' https://*.com", OPTIONS_ALLOW_UNSAFE_EVAL, &csp,
+      &warnings));
+  EXPECT_EQ("default-src 'self';", csp);
+  EXPECT_EQ(1U, warnings.size());
+  EXPECT_EQ(InsecureValueWarning("default-src", "https://*.com"),
+            warnings[0].message);
+  warnings.clear();
+
+  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
+      "default-src 'self' https://*.*.google.com/", OPTIONS_ALLOW_UNSAFE_EVAL,
+      &csp, &warnings));
+  EXPECT_EQ("default-src 'self';", csp);
+  EXPECT_EQ(1U, warnings.size());
+  EXPECT_EQ(InsecureValueWarning("default-src", "https://*.*.google.com/"),
+            warnings[0].message);
+  warnings.clear();
+
+  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
+      "default-src 'self' https://*.*.google.com:*/", OPTIONS_ALLOW_UNSAFE_EVAL,
+      &csp, &warnings));
+  EXPECT_EQ("default-src 'self';", csp);
+  EXPECT_EQ(1U, warnings.size());
+  EXPECT_EQ(InsecureValueWarning("default-src", "https://*.*.google.com:*/"),
+            warnings[0].message);
+  warnings.clear();
+
+  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
+      "default-src 'self' https://www.*.google.com/", OPTIONS_ALLOW_UNSAFE_EVAL,
+      &csp, &warnings));
+  EXPECT_EQ("default-src 'self';", csp);
+  EXPECT_EQ(1U, warnings.size());
+  EXPECT_EQ(InsecureValueWarning("default-src", "https://www.*.google.com/"),
+            warnings[0].message);
+  warnings.clear();
+
   EXPECT_FALSE(ContentSecurityPolicyIsSecure(
       "default-src 'self' https://www.*.google.com:*/",
-      OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
-      "default-src 'self' chrome://*", OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
-      "default-src 'self' chrome-extension://*", OPTIONS_ALLOW_UNSAFE_EVAL));
-
-  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
-      "default-src 'self' https://*.google.com", OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
-      "default-src 'self' https://*.google.com:1", OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
-      "default-src 'self' https://*.google.com:*", OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
-      "default-src 'self' https://*.google.com:1/", OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
-      "default-src 'self' https://*.google.com:*/", OPTIONS_ALLOW_UNSAFE_EVAL));
-
-  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
-      "default-src 'self' http://127.0.0.1", OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
-      "default-src 'self' http://localhost", OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
-      "default-src 'self' http://lOcAlHoSt", OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
-      "default-src 'self' http://127.0.0.1:9999", OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
-      "default-src 'self' http://localhost:8888", OPTIONS_ALLOW_UNSAFE_EVAL));
+      OPTIONS_ALLOW_UNSAFE_EVAL, &csp, &warnings));
+  EXPECT_EQ("default-src 'self';", csp);
+  EXPECT_EQ(1U, warnings.size());
+  EXPECT_EQ(InsecureValueWarning("default-src", "https://www.*.google.com:*/"),
+            warnings[0].message);
+  warnings.clear();
+
+  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
+      "default-src 'self' chrome://*", OPTIONS_ALLOW_UNSAFE_EVAL, &csp,
+      &warnings));
+  EXPECT_EQ("default-src 'self';", csp);
+  EXPECT_EQ(1U, warnings.size());
+  EXPECT_EQ(InsecureValueWarning("default-src", "chrome://*"),
+            warnings[0].message);
+  warnings.clear();
+
+  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
+      "default-src 'self' chrome-extension://*", OPTIONS_ALLOW_UNSAFE_EVAL,
+      &csp, &warnings));
+  EXPECT_EQ("default-src 'self';", csp);
+  EXPECT_EQ(1U, warnings.size());
+  EXPECT_EQ(InsecureValueWarning("default-src", "chrome-extension://*"),
+            warnings[0].message);
+  warnings.clear();
+
+  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
+     "default-src 'self' chrome-extension://", OPTIONS_ALLOW_UNSAFE_EVAL, &csp,
+     &warnings));
+  EXPECT_EQ("default-src 'self';", csp);
+  EXPECT_EQ(1U, warnings.size());
+  EXPECT_EQ(InsecureValueWarning("default-src", "chrome-extension://"),
+            warnings[0].message);
+  warnings.clear();
+
+  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
+      "default-src 'self' https://*.google.com", OPTIONS_ALLOW_UNSAFE_EVAL,
+      NULL, NULL));
+  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
+      "default-src 'self' https://*.google.com:1", OPTIONS_ALLOW_UNSAFE_EVAL,
+      NULL, NULL));
+  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
+      "default-src 'self' https://*.google.com:*", OPTIONS_ALLOW_UNSAFE_EVAL,
+      NULL, NULL));
+  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
+      "default-src 'self' https://*.google.com:1/", OPTIONS_ALLOW_UNSAFE_EVAL,
+      NULL, NULL));
+  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
+      "default-src 'self' https://*.google.com:*/", OPTIONS_ALLOW_UNSAFE_EVAL,
+      NULL, NULL));
+
+  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
+      "default-src 'self' http://127.0.0.1", OPTIONS_ALLOW_UNSAFE_EVAL, NULL,
+      NULL));
+  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
+      "default-src 'self' http://localhost", OPTIONS_ALLOW_UNSAFE_EVAL, NULL,
+      NULL));
+  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
+      "default-src 'self' http://lOcAlHoSt", OPTIONS_ALLOW_UNSAFE_EVAL, NULL,
+      NULL));
+  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
+      "default-src 'self' http://127.0.0.1:9999", OPTIONS_ALLOW_UNSAFE_EVAL,
+      NULL, NULL));
+  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
+      "default-src 'self' http://localhost:8888", OPTIONS_ALLOW_UNSAFE_EVAL,
+      NULL, NULL));
   EXPECT_FALSE(ContentSecurityPolicyIsSecure(
       "default-src 'self' http://127.0.0.1.example.com",
-      OPTIONS_ALLOW_UNSAFE_EVAL));
+      OPTIONS_ALLOW_UNSAFE_EVAL, &csp, &warnings));
+  EXPECT_EQ("default-src 'self';", csp);
+  EXPECT_EQ(1U, warnings.size());
+  EXPECT_EQ(InsecureValueWarning("default-src", "http://127.0.0.1.example.com"),
+            warnings[0].message);
+  warnings.clear();
+
   EXPECT_FALSE(ContentSecurityPolicyIsSecure(
       "default-src 'self' http://localhost.example.com",
-      OPTIONS_ALLOW_UNSAFE_EVAL));
-
-  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
-      "default-src 'self' blob:", OPTIONS_ALLOW_UNSAFE_EVAL));
+      OPTIONS_ALLOW_UNSAFE_EVAL, &csp, &warnings));
+  EXPECT_EQ("default-src 'self';", csp);
+  EXPECT_EQ(1U, warnings.size());
+  EXPECT_EQ(InsecureValueWarning("default-src", "http://localhost.example.com"),
+            warnings[0].message);
+  warnings.clear();
+
+
+  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
+      "default-src 'self' blob:", OPTIONS_ALLOW_UNSAFE_EVAL, NULL, NULL));
   EXPECT_FALSE(ContentSecurityPolicyIsSecure(
       "default-src 'self' blob:http://example.com/XXX",
-      OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
-      "default-src 'self' filesystem:", OPTIONS_ALLOW_UNSAFE_EVAL));
+      OPTIONS_ALLOW_UNSAFE_EVAL, &csp, &warnings));
+  EXPECT_EQ("default-src 'self';", csp);
+  EXPECT_EQ(1U, warnings.size());
+  EXPECT_EQ(InsecureValueWarning("default-src", "blob:http://example.com/xxx"),
+            warnings[0].message);
+  warnings.clear();
+
+  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
+      "default-src 'self' filesystem:", OPTIONS_ALLOW_UNSAFE_EVAL, NULL, NULL));
   EXPECT_FALSE(ContentSecurityPolicyIsSecure(
       "default-src 'self' filesystem:http://example.com/XXX",
-      OPTIONS_ALLOW_UNSAFE_EVAL));
-
-  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
-      "default-src 'self' https://*.googleapis.com",
-      OPTIONS_ALLOW_UNSAFE_EVAL));
-  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
-      "default-src 'self' https://x.googleapis.com",
-      OPTIONS_ALLOW_UNSAFE_EVAL));
-  // "chrome-extension://" is an invalid CSP and ignored by Blink, but extension
-  // authors have been using this string anyway, so we cannot refuse this string
-  // until extensions can be loaded with an invalid CSP. http://crbug.com/434773
-  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
-     "default-src 'self' chrome-extension://", OPTIONS_ALLOW_UNSAFE_EVAL));
-
-  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
-     "script-src 'self'; object-src *", OPTIONS_NONE));
-  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
-     "script-src 'self'; object-src *", OPTIONS_ALLOW_INSECURE_OBJECT_SRC));
+      OPTIONS_ALLOW_UNSAFE_EVAL, &csp, &warnings));
+  EXPECT_EQ("default-src 'self';", csp);
+  EXPECT_EQ(1U, warnings.size());
+  EXPECT_EQ(InsecureValueWarning("default-src",
+                                 "filesystem:http://example.com/xxx"),
+            warnings[0].message);
+  warnings.clear();
+
+  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
+      "default-src 'self' https://*.googleapis.com", OPTIONS_ALLOW_UNSAFE_EVAL,
+      NULL, NULL));
+  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
+      "default-src 'self' https://x.googleapis.com", OPTIONS_ALLOW_UNSAFE_EVAL,
+      NULL, NULL));
+
+  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
+     "script-src 'self'; object-src *", OPTIONS_NONE, &csp, &warnings));
+  EXPECT_EQ("script-src 'self'; object-src;", csp);
+  EXPECT_EQ(1U, warnings.size());
+  EXPECT_EQ(InsecureValueWarning("object-src", "*"), warnings[0].message);
+  warnings.clear();
+
+  EXPECT_TRUE(ContentSecurityPolicyIsSecure(
+     "script-src 'self'; object-src *", OPTIONS_ALLOW_INSECURE_OBJECT_SRC, NULL,
+     NULL));
   EXPECT_TRUE(ContentSecurityPolicyIsSecure(
      "script-src 'self'; object-src http://www.example.com",
-     OPTIONS_ALLOW_INSECURE_OBJECT_SRC));
+     OPTIONS_ALLOW_INSECURE_OBJECT_SRC, NULL, NULL));
   EXPECT_TRUE(ContentSecurityPolicyIsSecure(
      "object-src http://www.example.com blob:; script-src 'self'",
-     OPTIONS_ALLOW_INSECURE_OBJECT_SRC));
+     OPTIONS_ALLOW_INSECURE_OBJECT_SRC, NULL, NULL));
   EXPECT_TRUE(ContentSecurityPolicyIsSecure(
      "script-src 'self'; object-src http://*.example.com",
-     OPTIONS_ALLOW_INSECURE_OBJECT_SRC));
-  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
-     "script-src *; object-src *;", OPTIONS_ALLOW_INSECURE_OBJECT_SRC));
+     OPTIONS_ALLOW_INSECURE_OBJECT_SRC, NULL, NULL));
+  EXPECT_FALSE(ContentSecurityPolicyIsSecure(
+     "script-src *; object-src *;", OPTIONS_ALLOW_INSECURE_OBJECT_SRC, &csp,
+     &warnings));
+  EXPECT_EQ("script-src; object-src *;", csp);
+  EXPECT_EQ(1U, warnings.size());
+  EXPECT_EQ(InsecureValueWarning("script-src", "*"), warnings[0].message);
+  warnings.clear();
 }
 
 TEST(ExtensionCSPValidator, IsSandboxed) {
   EXPECT_FALSE(ContentSecurityPolicyIsSandboxed(std::string(),
                                                 Manifest::TYPE_EXTENSION));
   EXPECT_FALSE(ContentSecurityPolicyIsSandboxed("img-src https://google.com",
                                                 Manifest::TYPE_EXTENSION));
 
   // Sandbox directive is required.
   EXPECT_TRUE(ContentSecurityPolicyIsSandboxed(
@@ skipping 15 matching lines @@
       "sandbox allow-top-navigation", Manifest::TYPE_EXTENSION));
   EXPECT_FALSE(ContentSecurityPolicyIsSandboxed(
       "sandbox allow-top-navigation", Manifest::TYPE_PLATFORM_APP));
 
   // Popups are OK.
   EXPECT_TRUE(ContentSecurityPolicyIsSandboxed(
       "sandbox allow-popups", Manifest::TYPE_EXTENSION));
   EXPECT_TRUE(ContentSecurityPolicyIsSandboxed(
       "sandbox allow-popups", Manifest::TYPE_PLATFORM_APP));
 }