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