Add basic Referrer-Policy support for Documents

third_party/WebKit/Source/platform/network/HTTPParsersTest.cpp

 // Copyright 2014 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 "platform/network/HTTPParsers.h"
 
 #include "platform/heap/Handle.h"
 #include "platform/weborigin/Suborigin.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "wtf/MathExtras.h"
@@ skipping 265 matching lines @@
     expectParsePolicyFail("One policy, invalid characters", "foobar 'un$afe-postmessage-send'");
     expectParsePolicyFail("One policy, caps", "foobar 'UNSAFE-POSTMESSAGE-SEND'");
     expectParsePolicyFail("One policy, missing first quote", "foobar unsafe-postmessage-send'");
     expectParsePolicyFail("One policy, missing last quote", "foobar 'unsafe-postmessage-send");
     expectParsePolicyFail("One policy, invalid character at end", "foobar 'unsafe-postmessage-send';");
     expectParsePolicyFail("Multiple policies, extra character between options", "foobar 'unsafe-postmessage-send' ; 'unsafe-postmessage-send'");
     expectParsePolicyFail("Policy that is a single quote", "foobar '");
     expectParsePolicyFail("Valid policy and then policy that is a single quote", "foobar 'unsafe-postmessage-send' '");
 }
 
+TEST(HTTPParsersTest, ParseReferrerPolicy)
+{
+    EXPECT_EQ(ReferrerPolicyDefault, parseReferrerPolicyHeader(""));
+
+    // Test that invalid policy values are ignored.
+    EXPECT_EQ(ReferrerPolicyDefault, parseReferrerPolicyHeader("not-a-valid-policy"));
+    EXPECT_EQ(ReferrerPolicyDefault, parseReferrerPolicyHeader("not-a-valid-policy,also-not-a-valid-policy"));
+    EXPECT_EQ(ReferrerPolicyAlways, parseReferrerPolicyHeader("not-a-valid-policy,unsafe-url"));
+    EXPECT_EQ(ReferrerPolicyAlways, parseReferrerPolicyHeader("unsafe-url,not-a-valid-policy"));
+
+    // Test parsing each of the policy values.
+    EXPECT_EQ(ReferrerPolicyAlways, parseReferrerPolicyHeader("unsafe-url"));
+    EXPECT_EQ(ReferrerPolicyNoReferrerWhenDowngrade, parseReferrerPolicyHeader("no-referrer-when-downgrade"));
+    EXPECT_EQ(ReferrerPolicyNever, parseReferrerPolicyHeader("no-referrer"));
+    EXPECT_EQ(ReferrerPolicyOrigin, parseReferrerPolicyHeader("origin"));
+    EXPECT_EQ(ReferrerPolicyOriginWhenCrossOrigin, parseReferrerPolicyHeader("origin-when-cross-origin"));
+}
+
 } // namespace blink