1 files changed, 141 insertions, 0 deletions
diff --git a/Source/WebKit2/NetworkProcess/cache/NetworkCacheKey.h b/Source/WebKit2/NetworkProcess/cache/NetworkCacheKey.h
new file mode 100644
index 000000000..439ebf0f7
--- /dev/null
+++ b/Source/WebKit2/NetworkProcess/cache/NetworkCacheKey.h
@@ -0,0 +1,141 @@
+/*
+ * Copyright (C) 2014-2015 Apple 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:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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 NetworkCacheKey_h
+#define NetworkCacheKey_h
+
+#if ENABLE(NETWORK_CACHE)
+
+#include "NetworkCacheData.h"
+#include <wtf/SHA1.h>
+#include <wtf/persistence/Coder.h>
+#include <wtf/text/WTFString.h>
+
+namespace WebKit {
+namespace NetworkCache {
+
+struct DataKey {
+    String partition;
+    String type;
+    SHA1::Digest identifier;
+
+    template <class Encoder> void encode(Encoder& encoder) const
+    {
+        encoder << partition << type << identifier;
+    }
+
+    template <class Decoder> static bool decode(Decoder& decoder, DataKey& dataKey)
+    {
+        return decoder.decode(dataKey.partition) && decoder.decode(dataKey.type) && decoder.decode(dataKey.identifier);
+    }
+};
+
+class Key {
+public:
+    typedef SHA1::Digest HashType;
+
+    Key() { }
+    Key(const Key&);
+    Key(Key&&) = default;
+    Key(const String& partition, const String& type, const String& range, const String& identifier, const Salt&);
+    Key(const DataKey&, const Salt&);
+
+    Key& operator=(const Key&);
+    Key& operator=(Key&&) = default;
+
+    Key(WTF::HashTableDeletedValueType);
+    bool isHashTableDeletedValue() const { return m_identifier.isHashTableDeletedValue(); }
+
+    bool isNull() const { return m_identifier.isNull(); }
+
+    const String& partition() const { return m_partition; }
+    const String& identifier() const { return m_identifier; }
+    const String& type() const { return m_type; }
+    const String& range() const { return m_range; }
+
+    const HashType& hash() const { return m_hash; }
+    const HashType& partitionHash() const { return m_partitionHash; }
+
+    static bool stringToHash(const String&, HashType&);
+
+    static size_t hashStringLength() { return 2 * sizeof(m_hash); }
+    String hashAsString() const { return hashAsString(m_hash); }
+    String partitionHashAsString() const { return hashAsString(m_partitionHash); }
+
+    void encode(WTF::Persistence::Encoder&) const;
+    static bool decode(WTF::Persistence::Decoder&, Key&);
+
+    bool operator==(const Key&) const;
+    bool operator!=(const Key& other) const { return !(*this == other); }
+
+private:
+    static String hashAsString(const HashType&);
+    HashType computeHash(const Salt&) const;
+    HashType computePartitionHash(const Salt&) const;
+
+    String m_partition;
+    String m_type;
+    String m_identifier;
+    String m_range;
+    HashType m_hash;
+    HashType m_partitionHash;
+};
+
+}
+}
+
+namespace WTF {
+
+struct NetworkCacheKeyHash {
+    static unsigned hash(const WebKit::NetworkCache::Key& key)
+    {
+        static_assert(SHA1::hashSize >= sizeof(unsigned), "Hash size must be greater than sizeof(unsigned)");
+        return *reinterpret_cast<const unsigned*>(key.hash().data());
+    }
+
+    static bool equal(const WebKit::NetworkCache::Key& a, const WebKit::NetworkCache::Key& b)
+    {
+        return a == b;
+    }
+
+    static const bool safeToCompareToEmptyOrDeleted = false;
+};
+
+template<typename T> struct DefaultHash;
+template<> struct DefaultHash<WebKit::NetworkCache::Key> {
+    typedef NetworkCacheKeyHash Hash;
+};
+
+template<> struct HashTraits<WebKit::NetworkCache::Key> : SimpleClassHashTraits<WebKit::NetworkCache::Key> {
+    static const bool emptyValueIsZero = false;
+
+    static const bool hasIsEmptyValueFunction = true;
+    static bool isEmptyValue(const WebKit::NetworkCache::Key& key) { return key.isNull(); }
+};
+
+} // namespace WTF
+
+#endif
+#endif