PluginPackageWin.cpp [plain text]
#include "config.h"
#include "PluginPackage.h"
#include "MIMETypeRegistry.h"
#include "PluginDatabase.h"
#include "PluginDebug.h"
#include "Timer.h"
#include "npruntime_impl.h"
#include <string.h>
#include <wtf/StdLibExtras.h>
#include <wtf/text/CString.h>
#include <shlwapi.h>
namespace WebCore {
static String getVersionInfo(const LPVOID versionInfoData, const String& info)
{
LPVOID buffer;
UINT bufferLength;
String subInfo = "\\StringfileInfo\\040904E4\\" + info;
bool retval = VerQueryValueW(versionInfoData,
const_cast<UChar*>(subInfo.charactersWithNullTermination().data()),
&buffer, &bufferLength);
if (!retval || bufferLength == 0)
return String();
return String(reinterpret_cast<UChar*>(buffer), bufferLength - 1);
}
bool PluginPackage::isPluginBlacklisted()
{
if (name() == "Citrix ICA Client") {
return true;
}
if (name() == "Silverlight Plug-In") {
static const PlatformModuleVersion slPluginMinRequired(0x51BE0000, 0x00010000);
if (compareFileVersion(slPluginMinRequired) < 0)
return true;
} else if (equalLettersIgnoringASCIICase(fileName(), "npmozax.dll")) {
return true;
} else if (equalLettersIgnoringASCIICase(fileName(), "npwpf.dll")) {
return true;
} else if (name() == "Yahoo Application State Plugin") {
static const PlatformModuleVersion yahooAppStatePluginMinRequired(0x00000006, 0x00010000);
if (compareFileVersion(yahooAppStatePluginMinRequired) < 0)
return true;
}
return false;
}
void PluginPackage::determineQuirks(const String& mimeType)
{
if (mimeType == "application/x-shockwave-flash") {
static const PlatformModuleVersion flashTenVersion(0x00000000, 0x000a0000);
if (compareFileVersion(flashTenVersion) < 0)
m_quirks.add(PluginQuirkWantsMozillaUserAgent);
m_quirks.add(PluginQuirkThrottleInvalidate);
m_quirks.add(PluginQuirkThrottleWMUserPlusOneMessages);
m_quirks.add(PluginQuirkFlashURLNotifyBug);
}
if (name().contains("Microsoft") && name().contains("Windows Media")) {
m_quirks.add(PluginQuirkDeferFirstSetWindowCall);
m_quirks.add(PluginQuirkRemoveWindowlessVideoParam);
m_quirks.add(PluginQuirkHasModalMessageLoop);
}
if (name() == "VLC Multimedia Plugin" || name() == "VLC Multimedia Plug-in") {
m_quirks.add(PluginQuirkDontSetNullWindowHandleOnDestroy);
m_quirks.add(PluginQuirkDontAllowMultipleInstances);
}
if (mimeType == "video/divx")
m_quirks.add(PluginQuirkDeferFirstSetWindowCall);
if (mimeType == "application/x-silverlight")
m_quirks.add(PluginQuirkDontUnloadPlugin);
if (MIMETypeRegistry::isJavaAppletMIMEType(mimeType)) {
m_quirks.add(PluginQuirkDontUnloadPlugin);
m_quirks.add(PluginQuirkDontClipToZeroRectWhenScrolling);
}
if (mimeType == "audio/x-pn-realaudio-plugin") {
m_quirks.add(PluginQuirkDontCallWndProcForSameMessageRecursively);
static const PlatformModuleVersion lastKnownUnloadableRealPlayerVersion(0x000B0B24, 0x00060000);
if (compareFileVersion(lastKnownUnloadableRealPlayerVersion) > 0)
m_quirks.add(PluginQuirkDontUnloadPlugin);
}
}
bool PluginPackage::fetchInfo()
{
DWORD versionInfoSize, zeroHandle;
versionInfoSize = GetFileVersionInfoSizeW(const_cast<UChar*>(m_path.charactersWithNullTermination().data()), &zeroHandle);
if (versionInfoSize == 0)
return false;
auto versionInfoData = std::make_unique<char[]>(versionInfoSize);
if (!GetFileVersionInfoW(const_cast<UChar*>(m_path.charactersWithNullTermination().data()),
0, versionInfoSize, versionInfoData.get()))
return false;
m_name = getVersionInfo(versionInfoData.get(), "ProductName");
m_description = getVersionInfo(versionInfoData.get(), "FileDescription");
if (m_name.isNull() || m_description.isNull())
return false;
VS_FIXEDFILEINFO* info;
UINT infoSize;
if (!VerQueryValueW(versionInfoData.get(), L"\\", (LPVOID*) &info, &infoSize) || infoSize < sizeof(VS_FIXEDFILEINFO))
return false;
m_moduleVersion.leastSig = info->dwFileVersionLS;
m_moduleVersion.mostSig = info->dwFileVersionMS;
if (isPluginBlacklisted())
return false;
Vector<String> types;
getVersionInfo(versionInfoData.get(), "MIMEType").split('|', types);
Vector<String> extensionLists;
getVersionInfo(versionInfoData.get(), "FileExtents").split('|', extensionLists);
Vector<String> descriptions;
getVersionInfo(versionInfoData.get(), "FileOpenName").split('|', descriptions);
for (unsigned i = 0; i < types.size(); i++) {
String type = types[i].convertToASCIILowercase();
String description = i < descriptions.size() ? descriptions[i] : "";
String extensionList = i < extensionLists.size() ? extensionLists[i] : "";
Vector<String> extensionsVector;
extensionList.split(',', extensionsVector);
int pos = description.find("(*");
if (pos != -1) {
if (pos > 1 && description[pos - 1] == ' ')
pos--;
description = description.left(pos);
}
determineQuirks(type);
m_mimeToExtensions.add(type, extensionsVector);
m_mimeToDescriptions.add(type, description);
}
return true;
}
bool PluginPackage::load()
{
if (m_freeLibraryTimer.isActive()) {
ASSERT(m_module);
m_freeLibraryTimer.stop();
} else if (m_isLoaded) {
if (m_quirks.contains(PluginQuirkDontAllowMultipleInstances))
return false;
m_loadCount++;
return true;
} else {
WCHAR currentPath[MAX_PATH];
if (!::GetCurrentDirectoryW(MAX_PATH, currentPath))
return false;
String path = m_path.substring(0, m_path.reverseFind('\\'));
if (!::SetCurrentDirectoryW(path.charactersWithNullTermination().data()))
return false;
m_module = ::LoadLibraryExW(m_path.charactersWithNullTermination().data(), 0, LOAD_WITH_ALTERED_SEARCH_PATH);
if (!::SetCurrentDirectoryW(currentPath)) {
if (m_module)
::FreeLibrary(m_module);
return false;
}
}
if (!m_module)
return false;
m_isLoaded = true;
NP_GetEntryPointsFuncPtr NP_GetEntryPoints = 0;
NP_InitializeFuncPtr NP_Initialize = 0;
NPError npErr;
NP_Initialize = (NP_InitializeFuncPtr)GetProcAddress(m_module, "NP_Initialize");
NP_GetEntryPoints = (NP_GetEntryPointsFuncPtr)GetProcAddress(m_module, "NP_GetEntryPoints");
m_NPP_Shutdown = (NPP_ShutdownProcPtr)GetProcAddress(m_module, "NP_Shutdown");
if (!NP_Initialize || !NP_GetEntryPoints || !m_NPP_Shutdown)
goto abort;
memset(&m_pluginFuncs, 0, sizeof(m_pluginFuncs));
m_pluginFuncs.size = sizeof(m_pluginFuncs);
npErr = NP_GetEntryPoints(&m_pluginFuncs);
LOG_NPERROR(npErr);
if (npErr != NPERR_NO_ERROR)
goto abort;
initializeBrowserFuncs();
npErr = NP_Initialize(&m_browserFuncs);
LOG_NPERROR(npErr);
if (npErr != NPERR_NO_ERROR)
goto abort;
m_loadCount++;
return true;
abort:
unloadWithoutShutdown();
return false;
}
unsigned PluginPackage::hash() const
{
const unsigned hashCodes[] = {
m_name.impl()->hash(),
m_description.impl()->hash(),
m_mimeToExtensions.size()
};
return StringHasher::hashMemory<sizeof(hashCodes)>(hashCodes);
}
bool PluginPackage::equal(const PluginPackage& a, const PluginPackage& b)
{
if (a.m_name != b.m_name)
return false;
if (a.m_description != b.m_description)
return false;
if (a.m_mimeToExtensions.size() != b.m_mimeToExtensions.size())
return false;
auto end = a.m_mimeToExtensions.end().keys();
for (auto it = a.m_mimeToExtensions.begin().keys(); it != end; ++it) {
if (!b.m_mimeToExtensions.contains(*it))
return false;
}
return true;
}
uint16_t PluginPackage::NPVersion() const
{
return NP_VERSION_MINOR;
}
}