NetscapePluginModule.cpp [plain text]
#include "config.h"
#include "NetscapePluginModule.h"
#if ENABLE(NETSCAPE_PLUGIN_API)
#include "Module.h"
#include "NPRuntimeUtilities.h"
#include "NetscapeBrowserFuncs.h"
#include <wtf/NeverDestroyed.h>
#include <wtf/text/CString.h>
namespace WebKit {
static Vector<NetscapePluginModule*>& initializedNetscapePluginModules()
{
static NeverDestroyed<Vector<NetscapePluginModule*>> initializedNetscapePluginModules;
return initializedNetscapePluginModules;
}
NetscapePluginModule::NetscapePluginModule(const String& pluginPath)
: m_pluginPath(pluginPath)
, m_isInitialized(false)
, m_loadCount(0)
, m_shutdownProcPtr(0)
, m_pluginFuncs()
{
}
NetscapePluginModule::~NetscapePluginModule()
{
ASSERT(initializedNetscapePluginModules().find(this) == notFound);
}
Vector<String> NetscapePluginModule::sitesWithData()
{
Vector<String> sites;
incrementLoadCount();
tryGetSitesWithData(sites);
decrementLoadCount();
return sites;
}
bool NetscapePluginModule::clearSiteData(const String& site, uint64_t flags, uint64_t maxAge)
{
incrementLoadCount();
bool result = tryClearSiteData(site, flags, maxAge);
decrementLoadCount();
return result;
}
bool NetscapePluginModule::tryGetSitesWithData(Vector<String>& sites)
{
if (!m_isInitialized)
return false;
if (!m_pluginFuncs.getsiteswithdata)
return false;
char** siteArray = m_pluginFuncs.getsiteswithdata();
if (!siteArray)
return true;
for (int i = 0; siteArray[i]; ++i) {
char* site = siteArray[i];
String siteString = String::fromUTF8(site);
if (!siteString.isNull())
sites.append(siteString);
npnMemFree(site);
}
npnMemFree(siteArray);
return true;
}
bool NetscapePluginModule::tryClearSiteData(const String& site, uint64_t flags, uint64_t maxAge)
{
if (!m_isInitialized)
return false;
if (!m_pluginFuncs.clearsitedata)
return false;
CString siteString;
if (!site.isNull())
siteString = site.utf8();
return m_pluginFuncs.clearsitedata(siteString.data(), flags, maxAge) == NPERR_NO_ERROR;
}
void NetscapePluginModule::shutdown()
{
ASSERT(m_isInitialized);
m_shutdownProcPtr();
m_isInitialized = false;
size_t pluginModuleIndex = initializedNetscapePluginModules().find(this);
ASSERT(pluginModuleIndex != notFound);
initializedNetscapePluginModules().remove(pluginModuleIndex);
}
RefPtr<NetscapePluginModule> NetscapePluginModule::getOrCreate(const String& pluginPath)
{
for (size_t i = 0; i < initializedNetscapePluginModules().size(); ++i) {
NetscapePluginModule* pluginModule = initializedNetscapePluginModules()[i];
if (pluginModule->m_pluginPath == pluginPath)
return pluginModule;
}
auto pluginModule(adoptRef(*new NetscapePluginModule(pluginPath)));
if (!pluginModule->load())
return nullptr;
return WTFMove(pluginModule);
}
void NetscapePluginModule::incrementLoadCount()
{
if (!m_loadCount) {
load();
}
m_loadCount++;
}
void NetscapePluginModule::decrementLoadCount()
{
ASSERT(m_loadCount > 0);
m_loadCount--;
if (!m_loadCount && m_isInitialized) {
shutdown();
unload();
}
}
bool NetscapePluginModule::load()
{
if (m_isInitialized) {
ASSERT(initializedNetscapePluginModules().find(this) != notFound);
return true;
}
if (!tryLoad()) {
unload();
return false;
}
m_isInitialized = true;
ASSERT(initializedNetscapePluginModules().find(this) == notFound);
initializedNetscapePluginModules().append(this);
determineQuirks();
return true;
}
#if PLATFORM(GTK)
static bool moduleMixesGtkSymbols(Module* module)
{
#ifdef GTK_API_VERSION_2
return module->functionPointer<gpointer>("gtk_application_get_type");
#else
return module->functionPointer<gpointer>("gtk_object_get_type");
#endif
}
#endif
bool NetscapePluginModule::tryLoad()
{
m_module = std::make_unique<Module>(m_pluginPath);
if (!m_module->load())
return false;
#if PLATFORM(GTK)
if (moduleMixesGtkSymbols(m_module.get()))
return false;
#endif
NP_InitializeFuncPtr initializeFuncPtr = m_module->functionPointer<NP_InitializeFuncPtr>("NP_Initialize");
if (!initializeFuncPtr)
return false;
#if !PLUGIN_ARCHITECTURE(X11)
NP_GetEntryPointsFuncPtr getEntryPointsFuncPtr = m_module->functionPointer<NP_GetEntryPointsFuncPtr>("NP_GetEntryPoints");
if (!getEntryPointsFuncPtr)
return false;
#endif
m_shutdownProcPtr = m_module->functionPointer<NPP_ShutdownProcPtr>("NP_Shutdown");
if (!m_shutdownProcPtr)
return false;
m_pluginFuncs.size = sizeof(NPPluginFuncs);
m_pluginFuncs.version = (NP_VERSION_MAJOR << 8) | NP_VERSION_MINOR;
#if PLUGIN_ARCHITECTURE(MAC)
#ifndef NP_NO_CARBON
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
ResFileRefNum currentResourceFile = CurResFile();
ResFileRefNum pluginResourceFile = m_module->bundleResourceMap();
UseResFile(pluginResourceFile);
#endif
bool result = initializeFuncPtr(netscapeBrowserFuncs()) == NPERR_NO_ERROR && getEntryPointsFuncPtr(&m_pluginFuncs) == NPERR_NO_ERROR;
#ifndef NP_NO_CARBON
UseResFile(currentResourceFile);
#pragma clang diagnostic pop
#endif
return result;
#elif PLUGIN_ARCHITECTURE(X11)
if (initializeFuncPtr(netscapeBrowserFuncs(), &m_pluginFuncs) != NPERR_NO_ERROR)
return false;
#endif
return true;
}
void NetscapePluginModule::unload()
{
ASSERT(!m_isInitialized);
m_module = nullptr;
}
}
#endif // ENABLE(NETSCAPE_PLUGIN_API)