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      1 /*
      2  * Copyright (C) 2009 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include "config.h"
     32 #include "platform/network/HTTPHeaderMap.h"
     33 
     34 namespace blink {
     35 
     36 HTTPHeaderMap::HTTPHeaderMap()
     37 {
     38 }
     39 
     40 HTTPHeaderMap::~HTTPHeaderMap()
     41 {
     42 }
     43 
     44 PassOwnPtr<CrossThreadHTTPHeaderMapData> HTTPHeaderMap::copyData() const
     45 {
     46     OwnPtr<CrossThreadHTTPHeaderMapData> data = adoptPtr(new CrossThreadHTTPHeaderMapData());
     47     data->reserveInitialCapacity(size());
     48 
     49     HTTPHeaderMap::const_iterator endIt = end();
     50     for (HTTPHeaderMap::const_iterator it = begin(); it != endIt; ++it)
     51         data->uncheckedAppend(std::make_pair(it->key.string().isolatedCopy(), it->value.string().isolatedCopy()));
     52 
     53     return data.release();
     54 }
     55 
     56 void HTTPHeaderMap::adopt(PassOwnPtr<CrossThreadHTTPHeaderMapData> data)
     57 {
     58     clear();
     59     size_t dataSize = data->size();
     60     for (size_t index = 0; index < dataSize; ++index) {
     61         pair<String, String>& header = (*data)[index];
     62         set(AtomicString(header.first), AtomicString(header.second));
     63     }
     64 }
     65 
     66 // Adapter that allows the HashMap to take C strings as keys.
     67 struct CaseFoldingCStringTranslator {
     68     static unsigned hash(const char* cString)
     69     {
     70         return CaseFoldingHash::hash(cString, strlen(cString));
     71     }
     72 
     73     static bool equal(const AtomicString& key, const char* cString)
     74     {
     75         return equalIgnoringCase(key, cString);
     76     }
     77 
     78     static void translate(AtomicString& location, const char* cString, unsigned /*hash*/)
     79     {
     80         location = AtomicString(cString);
     81     }
     82 };
     83 
     84 const AtomicString& HTTPHeaderMap::get(const char* name) const
     85 {
     86     const_iterator i = m_headers.find<CaseFoldingCStringTranslator>(name);
     87     if (i == end())
     88         return nullAtom;
     89     return i->value;
     90 }
     91 
     92 bool HTTPHeaderMap::contains(const char* name) const
     93 {
     94     return m_headers.find<CaseFoldingCStringTranslator>(name) != end();
     95 }
     96 
     97 HTTPHeaderMap::AddResult HTTPHeaderMap::add(const char* name, const AtomicString& value)
     98 {
     99     return m_headers.add<CaseFoldingCStringTranslator>(name, value);
    100 }
    101 
    102 } // namespace blink
    103