third_party/WebKit/Source/core/loader/CrossOriginPreflightResultCache.h

   1 /*
   2  * Copyright (C) 2008 Apple 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
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  *
  25  */
  26
  27 #ifndef CrossOriginPreflightResultCache_h
  28 #define CrossOriginPreflightResultCache_h
  29
  30 #include "core/fetch/ResourceLoaderOptions.h"
  31 #include "platform/weborigin/KURLHash.h"
  32 #include "wtf/HashMap.h"
  33 #include "wtf/HashSet.h"
  34 #include "wtf/PassOwnPtr.h"
  35 #include "wtf/text/StringHash.h"
  36
  37 namespace blink {
  38
  39 class HTTPHeaderMap;
  40 class ResourceResponse;
  41
  42 class CrossOriginPreflightResultCacheItem {
  43     WTF_MAKE_NONCOPYABLE(CrossOriginPreflightResultCacheItem); WTF_MAKE_FAST_ALLOCATED(CrossOriginPreflightResultCacheItem);
  44 public:
  45     CrossOriginPreflightResultCacheItem(StoredCredentials credentials)
  46         : m_absoluteExpiryTime(0)
  47         , m_credentials(credentials)
  48     {
  49     }
  50
  51     bool parse(const ResourceResponse&, String& errorDescription);
  52     bool allowsCrossOriginMethod(const String&, String& errorDescription) const;
  53     bool allowsCrossOriginHeaders(const HTTPHeaderMap&, String& errorDescription) const;
  54     bool allowsRequest(StoredCredentials, const String& method, const HTTPHeaderMap& requestHeaders) const;
  55
  56 private:
  57     typedef HashSet<String, CaseFoldingHash> HeadersSet;
  58
  59     // FIXME: A better solution to holding onto the absolute expiration time might be
  60     // to start a timer for the expiration delta that removes this from the cache when
  61     // it fires.
  62     double m_absoluteExpiryTime;
  63     StoredCredentials m_credentials;
  64     HashSet<String> m_methods;
  65     HeadersSet m_headers;
  66 };
  67
  68 class CrossOriginPreflightResultCache {
  69     WTF_MAKE_NONCOPYABLE(CrossOriginPreflightResultCache); WTF_MAKE_FAST_ALLOCATED(CrossOriginPreflightResultCache);
  70 public:
  71     static CrossOriginPreflightResultCache& shared();
  72
  73     void appendEntry(const String& origin, const KURL&, PassOwnPtr<CrossOriginPreflightResultCacheItem>);
  74     bool canSkipPreflight(const String& origin, const KURL&, StoredCredentials, const String& method, const HTTPHeaderMap& requestHeaders);
  75
  76 private:
  77     CrossOriginPreflightResultCache() { }
  78
  79     typedef HashMap<std::pair<String, KURL>, OwnPtr<CrossOriginPreflightResultCacheItem>> CrossOriginPreflightResultHashMap;
  80
  81     CrossOriginPreflightResultHashMap m_preflightHashMap;
  82 };
  83
  84 } // namespace blink
  85
  86 #endif