[FeaturePolicy] Initial implementation of Feature Policy

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

 /*
  * Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile Inc. http://www.torchmobile.com/
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2011 Apple Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
@@ skipping 16 matching lines @@
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "platform/network/HTTPParsers.h"
 
 #include "net/http/http_response_headers.h"
 #include "net/http/http_util.h"
+#include "platform/json/JSONParser.h"
 #include "platform/network/ResourceResponse.h"
 #include "platform/weborigin/Suborigin.h"
 #include "public/platform/WebString.h"
 #include "wtf/DateMath.h"
 #include "wtf/MathExtras.h"
 #include "wtf/text/CString.h"
 #include "wtf/text/CharacterNames.h"
 #include "wtf/text/ParsingUtilities.h"
 #include "wtf/text/StringBuilder.h"
 #include "wtf/text/StringUTF8Adaptor.h"
@@ skipping 823 matching lines @@
 
     response->clearHTTPHeaderField(header);
     while (responseHeaders->EnumerateHeader(&iterator, headerStringPiece,
                                             &value)) {
       response->addHTTPHeaderField(header, WebString::fromLatin1(value));
     }
   }
   return true;
 }
 
+// See https://tools.ietf.org/html/draft-ietf-httpbis-jfv-01, Section 4.
+std::unique_ptr<JSONArray> parseJSONHeader(const String& header) {
+  StringBuilder sb;
+  sb.append("[");
+  sb.append(header);
+  sb.append("]");
+  std::unique_ptr<JSONValue> headerValue = parseJSON(sb.toString());
+  if (!headerValue)

[dcheng, 2016/11/03 05:54:43]

Nit: this early return isn't necessary (JSONArray::cast handles this case as
well)

[iclelland, 2016/11/03 14:59:20]

Done, thanks.

+    return nullptr;  // Header is not valid JSON
+  return JSONArray::cast(std::move(headerValue));
+}
+
 }  // namespace blink