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/*
* Copyright (C) 2010, 2011 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 "WebPageProxy.h"
#include "DataReference.h"
#include "Logging.h"
#include "SessionState.h"
#include "WebBackForwardList.h"
#include "WebData.h"
#include "WebPageMessages.h"
#include "WebProcessProxy.h"
#include <wtf/RetainPtr.h>
#include <CoreFoundation/CFPropertyList.h>
using namespace WebCore;
namespace WebKit {
DEFINE_STATIC_GETTER(CFStringRef, SessionHistoryKey, (CFSTR("SessionHistory")));
DEFINE_STATIC_GETTER(CFStringRef, ProvisionalURLKey, (CFSTR("ProvisionalURL")));
static const UInt32 CurrentSessionStateDataVersion = 2;
PassRefPtr<WebData> WebPageProxy::sessionStateData(WebPageProxySessionStateFilterCallback filter, void* context) const
{
const void* keys[2];
const void* values[2];
CFIndex numValues = 0;
RetainPtr<CFDictionaryRef> sessionHistoryDictionary(AdoptCF, m_backForwardList->createCFDictionaryRepresentation(filter, context));
if (sessionHistoryDictionary) {
keys[numValues] = SessionHistoryKey();
values[numValues] = sessionHistoryDictionary.get();
++numValues;
}
RetainPtr<CFStringRef> provisionalURLString;
if (m_mainFrame) {
String provisionalURL = pendingAPIRequestURL();
if (provisionalURL.isEmpty())
provisionalURL = m_mainFrame->provisionalURL();
if (!provisionalURL.isEmpty()) {
provisionalURLString.adoptCF(provisionalURL.createCFString());
keys[numValues] = ProvisionalURLKey();
values[numValues] = provisionalURLString.get();
++numValues;
}
}
if (!numValues)
return 0;
RetainPtr<CFDictionaryRef> stateDictionary(AdoptCF, CFDictionaryCreate(0, keys, values, numValues, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks));
RetainPtr<CFWriteStreamRef> writeStream(AdoptCF, CFWriteStreamCreateWithAllocatedBuffers(0, 0));
if (!writeStream)
return 0;
if (!CFWriteStreamOpen(writeStream.get()))
return 0;
if (!CFPropertyListWriteToStream(stateDictionary.get(), writeStream.get(), kCFPropertyListBinaryFormat_v1_0, 0))
return 0;
RetainPtr<CFDataRef> stateCFData(AdoptCF, (CFDataRef)CFWriteStreamCopyProperty(writeStream.get(), kCFStreamPropertyDataWritten));
CFIndex length = CFDataGetLength(stateCFData.get());
Vector<unsigned char> stateVector(length + sizeof(UInt32));
// Put the session state version number at the start of the buffer
stateVector.data()[0] = (CurrentSessionStateDataVersion & 0xFF000000) >> 24;
stateVector.data()[1] = (CurrentSessionStateDataVersion & 0x00FF0000) >> 16;
stateVector.data()[2] = (CurrentSessionStateDataVersion & 0x0000FF00) >> 8;
stateVector.data()[3] = (CurrentSessionStateDataVersion & 0x000000FF);
// Copy in the actual session state data
CFDataGetBytes(stateCFData.get(), CFRangeMake(0, length), stateVector.data() + sizeof(UInt32));
return WebData::create(stateVector);
}
void WebPageProxy::restoreFromSessionStateData(WebData* webData)
{
if (!webData || webData->size() < sizeof(UInt32))
return;
const unsigned char* buffer = webData->bytes();
UInt32 versionHeader = (buffer[0] << 24) + (buffer[1] << 16) + (buffer[2] << 8) + buffer[3];
if (versionHeader != CurrentSessionStateDataVersion) {
LOG(SessionState, "Unrecognized version header for session state data - cannot restore");
return;
}
RetainPtr<CFDataRef> data(AdoptCF, CFDataCreate(0, webData->bytes() + sizeof(UInt32), webData->size() - sizeof(UInt32)));
CFStringRef propertyListError = 0;
RetainPtr<CFPropertyListRef> propertyList(AdoptCF, CFPropertyListCreateFromXMLData(0, data.get(), kCFPropertyListImmutable, &propertyListError));
if (propertyListError) {
CFRelease(propertyListError);
LOG(SessionState, "Could not read session state property list");
return;
}
if (!propertyList)
return;
if (CFGetTypeID(propertyList.get()) != CFDictionaryGetTypeID()) {
LOG(SessionState, "SessionState property list is not a CFDictionaryRef (%i) - its CFTypeID is %i", (int)CFDictionaryGetTypeID(), (int)CFGetTypeID(propertyList.get()));
return;
}
CFDictionaryRef backForwardListDictionary = 0;
if (CFTypeRef value = CFDictionaryGetValue(static_cast<CFDictionaryRef>(propertyList.get()), SessionHistoryKey())) {
if (CFGetTypeID(value) != CFDictionaryGetTypeID())
LOG(SessionState, "SessionState dictionary has a SessionHistory key, but the value is not a dictionary");
else
backForwardListDictionary = static_cast<CFDictionaryRef>(value);
}
CFStringRef provisionalURL = 0;
if (CFTypeRef value = CFDictionaryGetValue(static_cast<CFDictionaryRef>(propertyList.get()), ProvisionalURLKey())) {
if (CFGetTypeID(value) != CFStringGetTypeID())
LOG(SessionState, "SessionState dictionary has a ProvisionalValue key, but the value is not a string");
else
provisionalURL = static_cast<CFStringRef>(value);
}
if (backForwardListDictionary) {
if (!m_backForwardList->restoreFromCFDictionaryRepresentation(backForwardListDictionary))
LOG(SessionState, "Failed to restore back/forward list from SessionHistory dictionary");
else {
const BackForwardListItemVector& entries = m_backForwardList->entries();
if (size_t size = entries.size()) {
for (size_t i = 0; i < size; ++i)
process()->registerNewWebBackForwardListItem(entries[i].get());
SessionState state(m_backForwardList->entries(), m_backForwardList->currentIndex());
if (provisionalURL)
process()->send(Messages::WebPage::RestoreSession(state), m_pageID);
else {
SandboxExtension::Handle sandboxExtensionHandle;
if (WebBackForwardListItem* item = m_backForwardList->currentItem()) {
initializeSandboxExtensionHandle(KURL(KURL(), item->url()), sandboxExtensionHandle);
setPendingAPIRequestURL(item->url());
}
process()->send(Messages::WebPage::RestoreSessionAndNavigateToCurrentItem(state, sandboxExtensionHandle), m_pageID);
}
}
}
}
if (provisionalURL)
loadURL(provisionalURL);
}
static RetainPtr<CFStringRef> autosaveKey(const String& name)
{
String key = "com.apple.WebKit.searchField:" + name;
return RetainPtr<CFStringRef>(AdoptCF, key.createCFString());
}
void WebPageProxy::saveRecentSearches(const String& name, const Vector<String>& searchItems)
{
// The WebProcess shouldn't have bothered to send this message if the name was empty.
ASSERT(!name.isEmpty());
RetainPtr<CFMutableArrayRef> items;
if (size_t size = searchItems.size()) {
items.adoptCF(CFArrayCreateMutable(0, size, &kCFTypeArrayCallBacks));
for (size_t i = 0; i < size; ++i) {
RetainPtr<CFStringRef> item(AdoptCF, searchItems[i].createCFString());
CFArrayAppendValue(items.get(), item.get());
}
}
CFPreferencesSetAppValue(autosaveKey(name).get(), items.get(), kCFPreferencesCurrentApplication);
CFPreferencesAppSynchronize(kCFPreferencesCurrentApplication);
}
void WebPageProxy::loadRecentSearches(const String& name, Vector<String>& searchItems)
{
// The WebProcess shouldn't have bothered to send this message if the name was empty.
ASSERT(!name.isEmpty());
searchItems.clear();
RetainPtr<CFArrayRef> items(AdoptCF, reinterpret_cast<CFArrayRef>(CFPreferencesCopyAppValue(autosaveKey(name).get(), kCFPreferencesCurrentApplication)));
if (!items || CFGetTypeID(items.get()) != CFArrayGetTypeID())
return;
size_t size = CFArrayGetCount(items.get());
for (size_t i = 0; i < size; ++i) {
CFStringRef item = (CFStringRef)CFArrayGetValueAtIndex(items.get(), i);
if (CFGetTypeID(item) == CFStringGetTypeID())
searchItems.append(item);
}
}
} // namespace WebKit
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