third_party/WebKit/Source/platform/network/LinkHeader.cpp - Issue 2739633003: platform/loader: move LinkHeader from network/ to loader/

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Issue 2739633003: platform/loader: move LinkHeader from network/ to loader/ (Closed)

Patch Set: gen gen --check passes Created 3 years, 9 months ago

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1 // Copyright 2015 The Chromium Authors. All rights reserved.

2 // Use of this source code is governed by a BSD-style license that can be

3 // found in the LICENSE file.

4

5 #include "platform/network/LinkHeader.h"

6

7 #include "base/strings/string_util.h"

8 #include "components/link_header_util/link_header_util.h"

9 #include "wtf/text/ParsingUtilities.h"

10

11 namespace blink {

12

13 // Verify that the parameter is a link-extension which according to spec doesn't

14 // have to have a value.

15 static bool isExtensionParameter(LinkHeader::LinkParameterName name) {

16 return name >= LinkHeader::LinkParameterUnknown;

17 }

18

19 static LinkHeader::LinkParameterName parameterNameFromString(

20 base::StringPiece name) {

21 if (base::EqualsCaseInsensitiveASCII(name, "rel"))

22 return LinkHeader::LinkParameterRel;

23 if (base::EqualsCaseInsensitiveASCII(name, "anchor"))

24 return LinkHeader::LinkParameterAnchor;

25 if (base::EqualsCaseInsensitiveASCII(name, "crossorigin"))

26 return LinkHeader::LinkParameterCrossOrigin;

27 if (base::EqualsCaseInsensitiveASCII(name, "title"))

28 return LinkHeader::LinkParameterTitle;

29 if (base::EqualsCaseInsensitiveASCII(name, "media"))

30 return LinkHeader::LinkParameterMedia;

31 if (base::EqualsCaseInsensitiveASCII(name, "type"))

32 return LinkHeader::LinkParameterType;

33 if (base::EqualsCaseInsensitiveASCII(name, "rev"))

34 return LinkHeader::LinkParameterRev;

35 if (base::EqualsCaseInsensitiveASCII(name, "hreflang"))

36 return LinkHeader::LinkParameterHreflang;

37 if (base::EqualsCaseInsensitiveASCII(name, "as"))

38 return LinkHeader::LinkParameterAs;

39 return LinkHeader::LinkParameterUnknown;

40 }

41

42 void LinkHeader::setValue(LinkParameterName name, const String& value) {

43 if (name == LinkParameterRel && !m_rel)

44 m_rel = value.lower();

45 else if (name == LinkParameterAnchor)

46 m_isValid = false;

47 else if (name == LinkParameterCrossOrigin)

48 m_crossOrigin = value;

49 else if (name == LinkParameterAs)

50 m_as = value.lower();

51 else if (name == LinkParameterType)

52 m_mimeType = value.lower();

53 else if (name == LinkParameterMedia)

54 m_media = value.lower();

55 }

56

57 template <typename Iterator>

58 LinkHeader::LinkHeader(Iterator begin, Iterator end) : m_isValid(true) {

59 std::string url;

60 std::unordered_map<std::string, base::Optional<std::string>> params;

61 m_isValid = link_header_util::ParseLinkHeaderValue(begin, end, &url, &params);

62 if (!m_isValid)

63 return;

64

65 m_url = String(&url[0], url.length());

66 for (const auto& param : params) {

67 LinkParameterName name = parameterNameFromString(param.first);

68 if (!isExtensionParameter(name) && !param.second)

69 m_isValid = false;

70 std::string value = param.second.value_or("");

71 setValue(name, String(&value[0], value.length()));

72 }

73 }

74

75 LinkHeaderSet::LinkHeaderSet(const String& header) {

76 if (header.isNull())

77 return;

78

79 DCHECK(header.is8Bit()) << "Headers should always be 8 bit";

80 std::string headerString(reinterpret_cast<const char*>(header.characters8()),

81 header.length());

82 for (const auto& value : link_header_util::SplitLinkHeader(headerString))

83 m_headerSet.push_back(LinkHeader(value.first, value.second));

84 }

85

86 } // namespace blink

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