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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 "core/platform/network/HTTPHeaderMap.h"
     33 
     34 #include <utility>
     35 
     36 using namespace std;
     37 
     38 namespace WebCore {
     39 
     40 HTTPHeaderMap::HTTPHeaderMap()
     41 {
     42 }
     43 
     44 HTTPHeaderMap::~HTTPHeaderMap()
     45 {
     46 }
     47 
     48 PassOwnPtr<CrossThreadHTTPHeaderMapData> HTTPHeaderMap::copyData() const
     49 {
     50     OwnPtr<CrossThreadHTTPHeaderMapData> data = adoptPtr(new CrossThreadHTTPHeaderMapData());
     51     data->reserveInitialCapacity(size());
     52 
     53     HTTPHeaderMap::const_iterator end_it = end();
     54     for (HTTPHeaderMap::const_iterator it = begin(); it != end_it; ++it)
     55         data->uncheckedAppend(make_pair(it->key.string().isolatedCopy(), it->value.string().isolatedCopy()));
     56 
     57     return data.release();
     58 }
     59 
     60 void HTTPHeaderMap::adopt(PassOwnPtr<CrossThreadHTTPHeaderMapData> data)
     61 {
     62     clear();
     63     size_t dataSize = data->size();
     64     for (size_t index = 0; index < dataSize; ++index) {
     65         pair<String, String>& header = (*data)[index];
     66         set(header.first, header.second);
     67     }
     68 }
     69 
     70 AtomicString HTTPHeaderMap::get(const AtomicString& name) const
     71 {
     72     return HashMap<AtomicString, AtomicString, CaseFoldingHash>::get(name);
     73 }
     74 
     75 HTTPHeaderMap::AddResult HTTPHeaderMap::add(const AtomicString& name, const AtomicString& value)
     76 {
     77     return HashMap<AtomicString, AtomicString, CaseFoldingHash>::add(name, value);
     78 }
     79 
     80 // Adapter that allows the HashMap to take C strings as keys.
     81 struct CaseFoldingCStringTranslator {
     82     static unsigned hash(const char* cString)
     83     {
     84         return CaseFoldingHash::hash(cString, strlen(cString));
     85     }
     86 
     87     static bool equal(const AtomicString& key, const char* cString)
     88     {
     89         return equalIgnoringCase(key, cString);
     90     }
     91 
     92     static void translate(AtomicString& location, const char* cString, unsigned /*hash*/)
     93     {
     94         location = AtomicString(cString);
     95     }
     96 };
     97 
     98 AtomicString HTTPHeaderMap::get(const char* name) const
     99 {
    100     const_iterator i = find<CaseFoldingCStringTranslator>(name);
    101     if (i == end())
    102         return nullAtom;
    103     return i->value;
    104 }
    105 
    106 bool HTTPHeaderMap::contains(const char* name) const
    107 {
    108     return find<CaseFoldingCStringTranslator>(name) != end();
    109 }
    110 
    111 HTTPHeaderMap::AddResult HTTPHeaderMap::add(const char* name, const AtomicString& value)
    112 {
    113     return HashMap<AtomicString, AtomicString, CaseFoldingHash>::add<CaseFoldingCStringTranslator>(name, value);
    114 }
    115 
    116 } // namespace WebCore
    117