Index: Source/core/loader/LinkHeader.cpp |
diff --git a/Source/core/loader/LinkHeader.cpp b/Source/core/loader/LinkHeader.cpp |
new file mode 100644 |
index 0000000000000000000000000000000000000000..c0a652f75f30c6269258f7e3adf4060cb615c20e |
--- /dev/null |
+++ b/Source/core/loader/LinkHeader.cpp |
@@ -0,0 +1,80 @@ |
+// Copyright 2015 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 "config.h" |
+#include "core/loader/LinkHeader.h" |
+ |
+#include "platform/ParsingUtilities.h" |
+ |
+namespace blink { |
+ |
+// LWSP definition in https://www.ietf.org/rfc/rfc0822.txt |
+template <typename CharType> |
+static bool isWhitespace(CharType chr) |
+{ |
+ return (chr == ' ') || (chr == '\t'); |
+} |
+ |
+template < typename CharType> |
Mike West
2015/01/30 13:55:13
Nit: No space after '<'.
|
+bool LinkHeader::init(CharType* headerValue, unsigned len) |
+{ |
+ CharType* position = headerValue; |
+ CharType* headerEnd = headerValue + len; |
+ |
+ skipWhile<CharType, isWhitespace<CharType>>(position, headerEnd); |
+ |
+ if (*position != '<') |
+ return false; |
+ |
+ skipWhile<CharType, isWhitespace<CharType>>(++position, headerEnd); |
+ |
+ CharType* urlStart = position; |
+ skipUntil<CharType, isWhitespace<CharType>>(position, headerEnd, '>'); |
+ CharType* urlEnd = position; |
+ skipUntil<CharType>(position, headerEnd, '>'); |
+ ++position; |
+ m_url = String(urlStart, urlEnd - urlStart); |
+ |
+ while (position < headerEnd) { |
+ skipWhile<CharType, isWhitespace<CharType>>(position, headerEnd); |
+ if (*position != ';' && position != headerEnd) |
+ return false; |
+ skipWhile<CharType, isWhitespace<CharType>>(++position, headerEnd); |
+ if (position == headerEnd) |
+ return true; |
+ CharType* paramStart = position; |
+ skipUntil<CharType, isWhitespace<CharType>>(position, headerEnd, '='); |
+ CharType* paramEnd = position; |
+ skipWhile<CharType, isWhitespace<CharType>>(position, headerEnd); |
+ if (*position != '=') |
+ return false; |
+ skipWhile<CharType, isWhitespace<CharType>>(++position, headerEnd); |
+ |
+ CharType* valueStart = position; |
+ skipUntil<CharType, isWhitespace<CharType>>(position, headerEnd, ';'); |
+ CharType* valueEnd = position; |
+ skipWhile<CharType, isWhitespace<CharType>>(position, headerEnd); |
+ if ((valueEnd == valueStart) || (*position != ';' && position != headerEnd)) |
+ return false; |
+ if (String(paramStart, paramEnd - paramStart) == "rel") |
+ m_rel = String(valueStart, valueEnd - valueStart); |
Mike West
2015/01/30 13:55:13
Would you mind adding some comments in here regard
|
+ } |
+ |
+ return true; |
+} |
+ |
+LinkHeader::LinkHeader(const String& header) |
+{ |
+ if (header.isNull()) { |
+ m_isValid = false; |
+ return; |
+ } |
+ |
+ if (header.is8Bit()) |
+ m_isValid = init(header.characters8(), header.length()); |
+ else |
+ m_isValid = init(header.characters16(), header.length()); |
+} |
+ |
+} |