| // Copyright 2010, Google 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: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following disclaimer |
| // in the documentation and/or other materials provided with the |
| // distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 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. |
| |
| |
| #ifndef URLQueryCanonicalizer_h |
| #define URLQueryCanonicalizer_h |
| |
| #include "RawURLBuffer.h" |
| #include "URLBuffer.h" |
| #include "URLCharacterTypes.h" |
| #include "URLComponent.h" |
| #include "URLEscape.h" |
| |
| namespace WTF { |
| |
| template<typename InChar, typename OutChar, void convertCharset(const InChar*, int length, URLBuffer<char>&)> |
| class URLQueryCanonicalizer { |
| public: |
| static void canonicalize(const InChar* spec, const URLComponent& query, URLBuffer<OutChar>& buffer, URLComponent& resultQuery) |
| { |
| if (query.length() < 0) { |
| resultQuery = URLComponent(); |
| return; |
| } |
| |
| buffer->append('?'); |
| resultQuery.setBegin(buffer->length()); |
| convertToQueryEncoding(spec, query, buffer); |
| resultQuery.setLength(buffer->length() - resultQuery.begin()); |
| } |
| |
| private: |
| static bool isAllASCII(const InChar* spec, const URLComponent& query) |
| { |
| int end = query.end(); |
| for (int i = query.begin(); i < end; ++i) { |
| if (static_cast<unsigned>(spec[i]) >= 0x80) |
| return false; |
| } |
| return true; |
| } |
| |
| #ifndef NDEBUG |
| static bool isRaw8Bit(const InChar* source, int length) |
| { |
| for (int i = source; i < length; ++i) { |
| if (source[i] & 0xFF != source[i]) |
| return false; |
| } |
| return true; |
| } |
| #endif |
| |
| static void appendRaw8BitQueryString(const InChar* source, int length, URLBuffer<OutChar>* buffer) |
| { |
| ASSERT(isRaw8Bit(source, length)); |
| for (int i = 0; i < length; ++i) { |
| if (!URLCharacterTypes::isQueryChar(source[i])) |
| appendURLEscapedCharacter(static_cast<unsigned char>(source[i]), buffer); |
| else |
| buffer->append(static_cast<char>(source[i])); |
| } |
| } |
| |
| static void convertToQueryEncoding(const InChar* spec, const URLComponent& query, URLBuffer<OutChar>& buffer) |
| { |
| if (isAllASCII(spec, query)) { |
| appendRaw8BitQueryString(&spec[query.begin()], query.length(), buffer); |
| return; |
| } |
| |
| RawURLBuffer<char, 1024> convertedQuery; |
| convertCharset(spec, query, convertedQuery); |
| appendRaw8BitQueryString(convertedQuery.data(), convertedQuery.length(), buffer); |
| } |
| }; |
| |
| } |
| |
| #endif |
| |
| |