1 files changed, 335 insertions, 0 deletions
diff --git a/Source/WebKit/win/Plugins/PluginPackageWin.cpp b/Source/WebKit/win/Plugins/PluginPackageWin.cpp
new file mode 100644
index 000000000..7119d8854
--- /dev/null
+++ b/Source/WebKit/win/Plugins/PluginPackageWin.cpp
@@ -0,0 +1,335 @@
+/*
+ * Copyright (C) 2006, 2008 Apple Inc. All rights reserved.
+ * Copyright (C) 2008 Collabora, Ltd.  All rights reserved.
+ * Copyright (C) 2009 Torch Mobile, 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. ``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
+ * 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 "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();
+
+    // Subtract 1 from the length; we don't want the trailing null character.
+    return String(reinterpret_cast<UChar*>(buffer), bufferLength - 1);
+}
+
+bool PluginPackage::isPluginBlacklisted()
+{
+    if (name() == "Citrix ICA Client") {
+        // The Citrix ICA Client plug-in requires a Mozilla-based browser; see <rdar://6418681>.
+        return true;
+    }
+
+    if (name() == "Silverlight Plug-In") {
+        // workaround for <rdar://5557379> Crash in Silverlight when opening microsoft.com.
+        // the latest 1.0 version of Silverlight does not reproduce this crash, so allow it
+        // and any newer versions
+        static const PlatformModuleVersion slPluginMinRequired(0x51BE0000, 0x00010000);
+
+        if (compareFileVersion(slPluginMinRequired) < 0)
+            return true;
+    } else if (equalLettersIgnoringASCIICase(fileName(), "npmozax.dll")) {
+        // Bug 15217: Mozilla ActiveX control complains about missing xpcom_core.dll
+        return true;
+    } else if (equalLettersIgnoringASCIICase(fileName(), "npwpf.dll")) {
+        // Bug 57119: Microsoft Windows Presentation Foundation (WPF) plug-in complains about missing xpcom.dll
+        return true;
+    } else if (name() == "Yahoo Application State Plugin") {
+        // https://bugs.webkit.org/show_bug.cgi?id=26860
+        // Bug in Yahoo Application State plug-in earlier than 1.0.0.6 leads to heap corruption. 
+        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);
+
+        // Pre 10 Flash only requests windowless plugins if we return a mozilla user agent
+        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")) {
+        // The WMP plugin sets its size on the first NPP_SetWindow call and never updates its size, so
+        // call SetWindow when the plugin view has a correct size
+        m_quirks.add(PluginQuirkDeferFirstSetWindowCall);
+
+        // Windowless mode does not work at all with the WMP plugin so just remove that parameter 
+        // and don't pass it to the plug-in.
+        m_quirks.add(PluginQuirkRemoveWindowlessVideoParam);
+
+        // WMP has a modal message loop that it enters whenever we call it or
+        // ask it to paint. This modal loop can deliver messages to other
+        // windows in WebKit at times when they are not expecting them (for
+        // example, delivering a WM_PAINT message during a layout), and these
+        // can cause crashes.
+        m_quirks.add(PluginQuirkHasModalMessageLoop);
+    }
+
+    if (name() == "VLC Multimedia Plugin" || name() == "VLC Multimedia Plug-in") {
+        // VLC hangs on NPP_Destroy if we call NPP_SetWindow with a null window handle
+        m_quirks.add(PluginQuirkDontSetNullWindowHandleOnDestroy);
+
+        // VLC 0.8.6d and 0.8.6e crash if multiple instances are created.
+        // <rdar://problem/5773070> tracks allowing multiple instances when this
+        // bug is fixed.
+        m_quirks.add(PluginQuirkDontAllowMultipleInstances);
+    }
+
+    // The DivX plugin sets its size on the first NPP_SetWindow call and never updates its size, so
+    // call SetWindow when the plugin view has a correct size
+    if (mimeType == "video/divx")
+        m_quirks.add(PluginQuirkDeferFirstSetWindowCall);
+
+    // FIXME: This is a workaround for a problem in our NPRuntime bindings; if a plug-in creates an
+    // NPObject and passes it to a function it's not possible to see what root object that NPObject belongs to.
+    // Thus, we don't know that the object should be invalidated when the plug-in instance goes away.
+    // See <rdar://problem/5487742>.
+    if (mimeType == "application/x-silverlight")
+        m_quirks.add(PluginQuirkDontUnloadPlugin);
+
+    if (MIMETypeRegistry::isJavaAppletMIMEType(mimeType)) {
+        // Because a single process cannot create multiple VMs, and we cannot reliably unload a
+        // Java VM, we cannot unload the Java plugin, or we'll lose reference to our only VM
+        m_quirks.add(PluginQuirkDontUnloadPlugin);
+
+        // Setting the window region to an empty region causes bad scrolling repaint problems
+        // with the Java plug-in.
+        m_quirks.add(PluginQuirkDontClipToZeroRectWhenScrolling);
+    }
+
+    if (mimeType == "audio/x-pn-realaudio-plugin") {
+        // Prevent the Real plugin from calling the Window Proc recursively, causing the stack to overflow.
+        m_quirks.add(PluginQuirkDontCallWndProcForSameMessageRecursively);
+
+        static const PlatformModuleVersion lastKnownUnloadableRealPlayerVersion(0x000B0B24, 0x00060000);
+
+        // Unloading RealPlayer versions newer than 10.5 can cause a hang; see rdar://5669317.
+        // FIXME: Resume unloading when this bug in the RealPlayer Plug-In is fixed (rdar://5713147)
+        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);
+
+        // Get rid of the extension list that may be at the end of the description string.
+        int pos = description.find("(*");
+        if (pos != -1) {
+            // There might be a space that we need to get rid of.
+            if (pos > 1 && description[pos - 1] == ' ')
+                pos--;
+            description = description.left(pos);
+        }
+
+        // Determine the quirks for the MIME types this plug-in supports
+        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;
+
+        // Load the library
+        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;
+}
+}