1 files changed, 246 insertions, 0 deletions
diff --git a/Source/WebKit2/NetworkProcess/cache/NetworkCacheEntry.cpp b/Source/WebKit2/NetworkProcess/cache/NetworkCacheEntry.cpp
new file mode 100644
index 000000000..b96bbcd5a
--- /dev/null
+++ b/Source/WebKit2/NetworkProcess/cache/NetworkCacheEntry.cpp
@@ -0,0 +1,246 @@
+/*
+ * Copyright (C) 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.
+ */
+
+#include "config.h"
+#include "NetworkCache.h"
+
+#include "Logging.h"
+#include "NetworkCacheCoders.h"
+#include <WebCore/ResourceRequest.h>
+#include <WebCore/SharedBuffer.h>
+#include <wtf/text/StringBuilder.h>
+
+#if ENABLE(NETWORK_CACHE)
+
+namespace WebKit {
+namespace NetworkCache {
+
+Entry::Entry(const Key& key, const WebCore::ResourceResponse& response, RefPtr<WebCore::SharedBuffer>&& buffer, const Vector<std::pair<String, String>>& varyingRequestHeaders)
+    : m_key(key)
+    , m_timeStamp(std::chrono::system_clock::now())
+    , m_response(response)
+    , m_varyingRequestHeaders(varyingRequestHeaders)
+    , m_buffer(WTFMove(buffer))
+{
+    ASSERT(m_key.type() == "Resource");
+}
+
+Entry::Entry(const Key& key, const WebCore::ResourceResponse& response, const WebCore::ResourceRequest& redirectRequest, const Vector<std::pair<String, String>>& varyingRequestHeaders)
+    : m_key(key)
+    , m_timeStamp(std::chrono::system_clock::now())
+    , m_response(response)
+    , m_varyingRequestHeaders(varyingRequestHeaders)
+{
+    ASSERT(m_key.type() == "Resource");
+
+    m_redirectRequest.emplace();
+    m_redirectRequest->setAsIsolatedCopy(redirectRequest);
+    // Redirect body is not needed even if exists.
+    m_redirectRequest->setHTTPBody(nullptr);
+}
+
+Entry::Entry(const Entry& other)
+    : m_key(other.m_key)
+    , m_timeStamp(other.m_timeStamp)
+    , m_response(other.m_response)
+    , m_varyingRequestHeaders(other.m_varyingRequestHeaders)
+    , m_redirectRequest(other.m_redirectRequest)
+    , m_buffer(other.m_buffer)
+    , m_sourceStorageRecord(other.m_sourceStorageRecord)
+{
+}
+
+Entry::Entry(const Storage::Record& storageEntry)
+    : m_key(storageEntry.key)
+    , m_timeStamp(storageEntry.timeStamp)
+    , m_sourceStorageRecord(storageEntry)
+{
+    ASSERT(m_key.type() == "Resource");
+}
+
+Storage::Record Entry::encodeAsStorageRecord() const
+{
+    WTF::Persistence::Encoder encoder;
+    encoder << m_response;
+
+    bool hasVaryingRequestHeaders = !m_varyingRequestHeaders.isEmpty();
+    encoder << hasVaryingRequestHeaders;
+    if (hasVaryingRequestHeaders)
+        encoder << m_varyingRequestHeaders;
+
+    bool isRedirect = !!m_redirectRequest;
+    encoder << isRedirect;
+    if (isRedirect)
+        m_redirectRequest->encodeWithoutPlatformData(encoder);
+
+    encoder.encodeChecksum();
+
+    Data header(encoder.buffer(), encoder.bufferSize());
+    Data body;
+    if (m_buffer)
+        body = { reinterpret_cast<const uint8_t*>(m_buffer->data()), m_buffer->size() };
+
+    return { m_key, m_timeStamp, header, body, { } };
+}
+
+std::unique_ptr<Entry> Entry::decodeStorageRecord(const Storage::Record& storageEntry)
+{
+    auto entry = std::make_unique<Entry>(storageEntry);
+
+    WTF::Persistence::Decoder decoder(storageEntry.header.data(), storageEntry.header.size());
+    if (!decoder.decode(entry->m_response))
+        return nullptr;
+    entry->m_response.setSource(WebCore::ResourceResponse::Source::DiskCache);
+    if (storageEntry.bodyHash)
+        entry->m_response.setCacheBodyKey(*storageEntry.bodyHash);
+
+    bool hasVaryingRequestHeaders;
+    if (!decoder.decode(hasVaryingRequestHeaders))
+        return nullptr;
+
+    if (hasVaryingRequestHeaders) {
+        if (!decoder.decode(entry->m_varyingRequestHeaders))
+            return nullptr;
+    }
+
+    bool isRedirect;
+    if (!decoder.decode(isRedirect))
+        return nullptr;
+
+    if (isRedirect) {
+        entry->m_redirectRequest.emplace();
+        if (!entry->m_redirectRequest->decodeWithoutPlatformData(decoder))
+            return nullptr;
+    }
+
+    if (!decoder.verifyChecksum()) {
+        LOG(NetworkCache, "(NetworkProcess) checksum verification failure\n");
+        return nullptr;
+    }
+
+    return entry;
+}
+
+#if ENABLE(SHAREABLE_RESOURCE)
+void Entry::initializeShareableResourceHandleFromStorageRecord() const
+{
+    if (!NetworkCache::singleton().canUseSharedMemoryForBodyData())
+        return;
+
+    auto sharedMemory = m_sourceStorageRecord.body.tryCreateSharedMemory();
+    if (!sharedMemory)
+        return;
+
+    auto shareableResource = ShareableResource::create(sharedMemory.releaseNonNull(), 0, m_sourceStorageRecord.body.size());
+    shareableResource->createHandle(m_shareableResourceHandle);
+}
+#endif
+
+void Entry::initializeBufferFromStorageRecord() const
+{
+#if ENABLE(SHAREABLE_RESOURCE)
+    if (!shareableResourceHandle().isNull()) {
+        m_buffer = m_shareableResourceHandle.tryWrapInSharedBuffer();
+        if (m_buffer)
+            return;
+    }
+#endif
+    m_buffer = WebCore::SharedBuffer::create(m_sourceStorageRecord.body.data(), m_sourceStorageRecord.body.size());
+}
+
+WebCore::SharedBuffer* Entry::buffer() const
+{
+    if (!m_buffer)
+        initializeBufferFromStorageRecord();
+
+    return m_buffer.get();
+}
+
+#if ENABLE(SHAREABLE_RESOURCE)
+ShareableResource::Handle& Entry::shareableResourceHandle() const
+{
+    if (m_shareableResourceHandle.isNull())
+        initializeShareableResourceHandleFromStorageRecord();
+
+    return m_shareableResourceHandle;
+}
+#endif
+
+bool Entry::needsValidation() const
+{
+    return m_response.source() == WebCore::ResourceResponse::Source::DiskCacheAfterValidation;
+}
+
+void Entry::setNeedsValidation(bool value)
+{
+    m_response.setSource(value ? WebCore::ResourceResponse::Source::DiskCacheAfterValidation : WebCore::ResourceResponse::Source::DiskCache);
+}
+
+void Entry::asJSON(StringBuilder& json, const Storage::RecordInfo& info) const
+{
+    json.appendLiteral("{\n");
+    json.appendLiteral("\"hash\": ");
+    json.appendQuotedJSONString(m_key.hashAsString());
+    json.appendLiteral(",\n");
+    json.appendLiteral("\"bodySize\": ");
+    json.appendNumber(info.bodySize);
+    json.appendLiteral(",\n");
+    json.appendLiteral("\"worth\": ");
+    json.appendNumber(info.worth);
+    json.appendLiteral(",\n");
+    json.appendLiteral("\"partition\": ");
+    json.appendQuotedJSONString(m_key.partition());
+    json.appendLiteral(",\n");
+    json.appendLiteral("\"timestamp\": ");
+    json.appendNumber(std::chrono::duration_cast<std::chrono::milliseconds>(m_timeStamp.time_since_epoch()).count());
+    json.appendLiteral(",\n");
+    json.appendLiteral("\"URL\": ");
+    json.appendQuotedJSONString(m_response.url().string());
+    json.appendLiteral(",\n");
+    json.appendLiteral("\"bodyHash\": ");
+    json.appendQuotedJSONString(info.bodyHash);
+    json.appendLiteral(",\n");
+    json.appendLiteral("\"bodyShareCount\": ");
+    json.appendNumber(info.bodyShareCount);
+    json.appendLiteral(",\n");
+    json.appendLiteral("\"headers\": {\n");
+    bool firstHeader = true;
+    for (auto& header : m_response.httpHeaderFields()) {
+        if (!firstHeader)
+            json.appendLiteral(",\n");
+        firstHeader = false;
+        json.appendLiteral("    ");
+        json.appendQuotedJSONString(header.key);
+        json.appendLiteral(": ");
+        json.appendQuotedJSONString(header.value);
+    }
+    json.appendLiteral("\n}\n");
+    json.appendLiteral("}");
+}
+
+}
+}
+
+#endif