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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 "config.h" |
| 6 #include "core/dom/URLSearchParams.h" |
| 7 |
| 8 #include "platform/weborigin/KURL.h" |
| 9 #include "wtf/text/StringBuilder.h" |
| 10 #include "wtf/text/TextEncoding.h" |
| 11 |
| 12 namespace blink { |
| 13 |
| 14 URLSearchParams::URLSearchParams(const String& queryString) |
| 15 { |
| 16 if (!queryString.isEmpty()) |
| 17 setInput(queryString); |
| 18 } |
| 19 |
| 20 URLSearchParams::URLSearchParams(URLSearchParams* searchParams) |
| 21 { |
| 22 ASSERT(searchParams); |
| 23 m_params = searchParams->m_params; |
| 24 } |
| 25 |
| 26 URLSearchParams::~URLSearchParams() |
| 27 { |
| 28 } |
| 29 |
| 30 static String decodeString(String input) |
| 31 { |
| 32 return decodeURLEscapeSequences(input.replace('+', ' ')); |
| 33 } |
| 34 |
| 35 void URLSearchParams::setInput(const String& queryString) |
| 36 { |
| 37 m_params.clear(); |
| 38 size_t start = 0; |
| 39 size_t queryStringLength = queryString.length(); |
| 40 while (start < queryStringLength) { |
| 41 size_t nameStart = start; |
| 42 size_t nameValueEnd = queryString.find('&', start); |
| 43 if (nameValueEnd == kNotFound) |
| 44 nameValueEnd = queryStringLength; |
| 45 if (nameValueEnd > start) { |
| 46 size_t endOfName = queryString.find('=', start); |
| 47 if (endOfName == kNotFound || endOfName > nameValueEnd) |
| 48 endOfName = nameValueEnd; |
| 49 String name = decodeString(queryString.substring(nameStart, endOfNam
e - nameStart)); |
| 50 String value; |
| 51 if (endOfName != nameValueEnd) |
| 52 value = decodeString(queryString.substring(endOfName + 1, nameVa
lueEnd - endOfName - 1)); |
| 53 if (value.isNull()) |
| 54 value = ""; |
| 55 m_params.append(std::make_pair(name, value)); |
| 56 } |
| 57 start = nameValueEnd + 1; |
| 58 } |
| 59 } |
| 60 static String encodeString(const String& input) |
| 61 { |
| 62 return encodeWithURLEscapeSequences(input).replace("%20", "+"); |
| 63 } |
| 64 |
| 65 String URLSearchParams::toString() const |
| 66 { |
| 67 StringBuilder result; |
| 68 for (size_t i = 0; i < m_params.size(); ++i) { |
| 69 if (i) |
| 70 result.append('&'); |
| 71 result.append(encodeString(m_params[i].first)); |
| 72 result.append('='); |
| 73 result.append(encodeString(m_params[i].second)); |
| 74 } |
| 75 return result.toString(); |
| 76 } |
| 77 |
| 78 void URLSearchParams::append(const String& name, const String& value) |
| 79 { |
| 80 m_params.append(std::make_pair(name, value)); |
| 81 } |
| 82 |
| 83 void URLSearchParams::deleteAllWithName(const String& name) |
| 84 { |
| 85 for (size_t i = 0; i < m_params.size();) { |
| 86 if (m_params[i].first == name) |
| 87 m_params.remove(i); |
| 88 else |
| 89 i++; |
| 90 } |
| 91 } |
| 92 |
| 93 String URLSearchParams::get(const String& name) const |
| 94 { |
| 95 for (const auto& param : m_params) { |
| 96 if (param.first == name) |
| 97 return param.second; |
| 98 } |
| 99 return String(); |
| 100 } |
| 101 |
| 102 Vector<String> URLSearchParams::getAll(const String& name) const |
| 103 { |
| 104 Vector<String> result; |
| 105 for (const auto& param : m_params) { |
| 106 if (param.first == name) |
| 107 result.append(param.second); |
| 108 } |
| 109 return result; |
| 110 } |
| 111 |
| 112 bool URLSearchParams::has(const String& name) const |
| 113 { |
| 114 for (const auto& param : m_params) { |
| 115 if (param.first == name) |
| 116 return true; |
| 117 } |
| 118 return false; |
| 119 } |
| 120 |
| 121 void URLSearchParams::set(const String& name, const String& value) |
| 122 { |
| 123 bool foundMatch = false; |
| 124 for (size_t i = 0; i < m_params.size();) { |
| 125 // If there are any name-value whose name is 'name', set |
| 126 // the value of the first such name-value pair to 'value' |
| 127 // and remove the others. |
| 128 if (m_params[i].first == name) { |
| 129 if (!foundMatch) { |
| 130 m_params[i++].second = value; |
| 131 foundMatch = true; |
| 132 } else { |
| 133 m_params.remove(i); |
| 134 } |
| 135 } else { |
| 136 i++; |
| 137 } |
| 138 } |
| 139 // Otherwise, append a new name-value pair to the list. |
| 140 if (!foundMatch) |
| 141 append(name, value); |
| 142 } |
| 143 |
| 144 DEFINE_TRACE(URLSearchParams) |
| 145 { |
| 146 } |
| 147 |
| 148 } // namespace blink |
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