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author | Steve Block <steveblock@google.com> | 2011-05-06 11:45:16 +0100 |
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committer | Steve Block <steveblock@google.com> | 2011-05-12 13:44:10 +0100 |
commit | cad810f21b803229eb11403f9209855525a25d57 (patch) | |
tree | 29a6fd0279be608e0fe9ffe9841f722f0f4e4269 /Source/WebCore/plugins/PluginPackage.cpp | |
parent | 121b0cf4517156d0ac5111caf9830c51b69bae8f (diff) | |
download | external_webkit-cad810f21b803229eb11403f9209855525a25d57.zip external_webkit-cad810f21b803229eb11403f9209855525a25d57.tar.gz external_webkit-cad810f21b803229eb11403f9209855525a25d57.tar.bz2 |
Merge WebKit at r75315: Initial merge by git.
Change-Id: I570314b346ce101c935ed22a626b48c2af266b84
Diffstat (limited to 'Source/WebCore/plugins/PluginPackage.cpp')
-rw-r--r-- | Source/WebCore/plugins/PluginPackage.cpp | 394 |
1 files changed, 394 insertions, 0 deletions
diff --git a/Source/WebCore/plugins/PluginPackage.cpp b/Source/WebCore/plugins/PluginPackage.cpp new file mode 100644 index 0000000..10149bf --- /dev/null +++ b/Source/WebCore/plugins/PluginPackage.cpp @@ -0,0 +1,394 @@ +/* + * Copyright (C) 2006, 2008 Apple Inc. All rights reserved. + * Copyright (C) 2008 Collabora Ltd. All rights reserved. + * Copyright (C) 2009 Holger Hans Peter Freyther + * + * 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 COMPUTER, 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 COMPUTER, 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/OwnArrayPtr.h> +#include <wtf/text/CString.h> + +namespace WebCore { + +PluginPackage::~PluginPackage() +{ + // This destructor gets called during refresh() if PluginDatabase's + // PluginSet hash is already populated, as it removes items from + // the hash table. Calling the destructor on a loaded plug-in of + // course would cause a crash, so we check to call unload before we + // ASSERT. + // FIXME: There is probably a better way to fix this. + if (!m_loadCount) + unloadWithoutShutdown(); + else + unload(); + + ASSERT(!m_isLoaded); +} + +void PluginPackage::freeLibrarySoon() +{ + ASSERT(!m_freeLibraryTimer.isActive()); + ASSERT(m_module); + ASSERT(!m_loadCount); + + m_freeLibraryTimer.startOneShot(0); +} + +void PluginPackage::freeLibraryTimerFired(Timer<PluginPackage>*) +{ + ASSERT(m_module); + ASSERT(!m_loadCount); + + unloadModule(m_module); + m_module = 0; +} + + +int PluginPackage::compare(const PluginPackage& compareTo) const +{ + // Sort plug-ins that allow multiple instances first. + bool AallowsMultipleInstances = !quirks().contains(PluginQuirkDontAllowMultipleInstances); + bool BallowsMultipleInstances = !compareTo.quirks().contains(PluginQuirkDontAllowMultipleInstances); + if (AallowsMultipleInstances != BallowsMultipleInstances) + return AallowsMultipleInstances ? -1 : 1; + + // Sort plug-ins in a preferred path first. + bool AisInPreferredDirectory = PluginDatabase::isPreferredPluginDirectory(parentDirectory()); + bool BisInPreferredDirectory = PluginDatabase::isPreferredPluginDirectory(compareTo.parentDirectory()); + if (AisInPreferredDirectory != BisInPreferredDirectory) + return AisInPreferredDirectory ? -1 : 1; + + int diff = strcmp(name().utf8().data(), compareTo.name().utf8().data()); + if (diff) + return diff; + + diff = compareFileVersion(compareTo.version()); + if (diff) + return diff; + + return strcmp(parentDirectory().utf8().data(), compareTo.parentDirectory().utf8().data()); +} + +PluginPackage::PluginPackage(const String& path, const time_t& lastModified) + : m_isEnabled(true) + , m_isLoaded(false) + , m_loadCount(0) + , m_path(path) + , m_moduleVersion(0) + , m_module(0) + , m_lastModified(lastModified) + , m_freeLibraryTimer(this, &PluginPackage::freeLibraryTimerFired) +#if ENABLE(NETSCAPE_PLUGIN_METADATA_CACHE) + , m_infoIsFromCache(true) +#endif +{ + m_fileName = pathGetFileName(m_path); + m_parentDirectory = m_path.left(m_path.length() - m_fileName.length() - 1); +} + +#if !OS(SYMBIAN) +void PluginPackage::unload() +{ + if (!m_isLoaded) + return; + + if (--m_loadCount > 0) + return; + + m_NPP_Shutdown(); + + unloadWithoutShutdown(); +} +#endif // !OS(SYMBIAN) + +void PluginPackage::unloadWithoutShutdown() +{ + if (!m_isLoaded) + return; + + ASSERT(!m_loadCount); + ASSERT(m_module); + + // <rdar://5530519>: Crash when closing tab with pdf file (Reader 7 only) + // If the plugin has subclassed its parent window, as with Reader 7, we may have + // gotten here by way of the plugin's internal window proc forwarding a message to our + // original window proc. If we free the plugin library from here, we will jump back + // to code we just freed when we return, so delay calling FreeLibrary at least until + // the next message loop + freeLibrarySoon(); + + m_isLoaded = false; +} + +void PluginPackage::setEnabled(bool enabled) +{ + m_isEnabled = enabled; +} + +PassRefPtr<PluginPackage> PluginPackage::createPackage(const String& path, const time_t& lastModified) +{ + RefPtr<PluginPackage> package = adoptRef(new PluginPackage(path, lastModified)); + + if (!package->fetchInfo()) + return 0; + + return package.release(); +} + +#if ENABLE(NETSCAPE_PLUGIN_METADATA_CACHE) +PassRefPtr<PluginPackage> PluginPackage::createPackageFromCache(const String& path, const time_t& lastModified, const String& name, const String& description, const String& mimeDescription) +{ + RefPtr<PluginPackage> package = adoptRef(new PluginPackage(path, lastModified)); + package->m_name = name; + package->m_description = description; + package->determineModuleVersionFromDescription(); + package->setMIMEDescription(mimeDescription); + package->m_infoIsFromCache = true; + return package.release(); +} +#endif + +#if defined(XP_UNIX) +void PluginPackage::determineQuirks(const String& mimeType) +{ + 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); + return; + } + + if (mimeType == "application/x-shockwave-flash") { + static const PlatformModuleVersion flashTenVersion(0x0a000000); + + if (compareFileVersion(flashTenVersion) >= 0) { + // Flash 10.0 b218 doesn't like having a NULL window handle + m_quirks.add(PluginQuirkDontSetNullWindowHandleOnDestroy); +#if PLATFORM(QT) + m_quirks.add(PluginQuirkRequiresGtkToolKit); +#endif + } else { + // Flash 9 and older requests windowless plugins if we return a mozilla user agent + m_quirks.add(PluginQuirkWantsMozillaUserAgent); + } + +#if PLATFORM(QT) + // Flash will crash on repeated calls to SetWindow in windowed mode + m_quirks.add(PluginQuirkDontCallSetWindowMoreThanOnce); + +#if CPU(X86_64) + // 64-bit Flash freezes if right-click is sent in windowless mode + m_quirks.add(PluginQuirkIgnoreRightClickInWindowlessMode); +#endif +#endif + + m_quirks.add(PluginQuirkRequiresDefaultScreenDepth); + m_quirks.add(PluginQuirkThrottleInvalidate); + m_quirks.add(PluginQuirkThrottleWMUserPlusOneMessages); + m_quirks.add(PluginQuirkFlashURLNotifyBug); + } + +#if defined(Q_WS_MAEMO_5) || defined(Q_WS_MAEMO_6) + // Passing a 32-bit depth pixmap to NPAPI plugins is too inefficient. Instead, pass a X Pixmap + // that has same depth as the screen depth since graphics operations are optimized + // for this depth. + m_quirks.add(PluginQuirkRequiresDefaultScreenDepth); +#endif +} +#endif + +#if !OS(WINDOWS) +void PluginPackage::determineModuleVersionFromDescription() +{ + // It's a bit lame to detect the plugin version by parsing it + // from the plugin description string, but it doesn't seem that + // version information is available in any standardized way at + // the module level, like in Windows + + if (m_description.isEmpty()) + return; + + if (m_description.startsWith("Shockwave Flash") && m_description.length() >= 19) { + // The flash version as a PlatformModuleVersion differs on Unix from Windows + // since the revision can be larger than a 8 bits, so we allow it 16 here and + // push the major/minor up 8 bits. Thus on Unix, Flash's version may be + // 0x0a000000 instead of 0x000a0000. + + Vector<String> versionParts; + m_description.substring(16).split(' ', /*allowEmptyEntries =*/ false, versionParts); + if (versionParts.isEmpty()) + return; + + if (versionParts.size() >= 1) { + Vector<String> majorMinorParts; + versionParts[0].split('.', majorMinorParts); + if (majorMinorParts.size() >= 1) { + bool converted = false; + unsigned major = majorMinorParts[0].toUInt(&converted); + if (converted) + m_moduleVersion = (major & 0xff) << 24; + } + if (majorMinorParts.size() == 2) { + bool converted = false; + unsigned minor = majorMinorParts[1].toUInt(&converted); + if (converted) + m_moduleVersion |= (minor & 0xff) << 16; + } + } + + if (versionParts.size() >= 2) { + String revision = versionParts[1]; + if (revision.length() > 1 && (revision[0] == 'r' || revision[0] == 'b')) { + revision.remove(0, 1); + m_moduleVersion |= revision.toInt() & 0xffff; + } + } + } +} +#endif + +#if ENABLE(NETSCAPE_PLUGIN_API) +void PluginPackage::initializeBrowserFuncs() +{ + memset(&m_browserFuncs, 0, sizeof(m_browserFuncs)); + m_browserFuncs.size = sizeof(m_browserFuncs); + m_browserFuncs.version = NPVersion(); + + m_browserFuncs.geturl = NPN_GetURL; + m_browserFuncs.posturl = NPN_PostURL; + m_browserFuncs.requestread = NPN_RequestRead; + m_browserFuncs.newstream = NPN_NewStream; + m_browserFuncs.write = NPN_Write; + m_browserFuncs.destroystream = NPN_DestroyStream; + m_browserFuncs.status = NPN_Status; + m_browserFuncs.uagent = NPN_UserAgent; + m_browserFuncs.memalloc = NPN_MemAlloc; + m_browserFuncs.memfree = NPN_MemFree; + m_browserFuncs.memflush = NPN_MemFlush; + m_browserFuncs.reloadplugins = NPN_ReloadPlugins; + m_browserFuncs.geturlnotify = NPN_GetURLNotify; + m_browserFuncs.posturlnotify = NPN_PostURLNotify; + m_browserFuncs.getvalue = NPN_GetValue; + m_browserFuncs.setvalue = NPN_SetValue; + m_browserFuncs.invalidaterect = NPN_InvalidateRect; + m_browserFuncs.invalidateregion = NPN_InvalidateRegion; + m_browserFuncs.forceredraw = NPN_ForceRedraw; + m_browserFuncs.getJavaEnv = NPN_GetJavaEnv; + m_browserFuncs.getJavaPeer = NPN_GetJavaPeer; + m_browserFuncs.pushpopupsenabledstate = NPN_PushPopupsEnabledState; + m_browserFuncs.poppopupsenabledstate = NPN_PopPopupsEnabledState; + m_browserFuncs.pluginthreadasynccall = NPN_PluginThreadAsyncCall; + + m_browserFuncs.releasevariantvalue = _NPN_ReleaseVariantValue; + m_browserFuncs.getstringidentifier = _NPN_GetStringIdentifier; + m_browserFuncs.getstringidentifiers = _NPN_GetStringIdentifiers; + m_browserFuncs.getintidentifier = _NPN_GetIntIdentifier; + m_browserFuncs.identifierisstring = _NPN_IdentifierIsString; + m_browserFuncs.utf8fromidentifier = _NPN_UTF8FromIdentifier; + m_browserFuncs.intfromidentifier = _NPN_IntFromIdentifier; + m_browserFuncs.createobject = _NPN_CreateObject; + m_browserFuncs.retainobject = _NPN_RetainObject; + m_browserFuncs.releaseobject = _NPN_ReleaseObject; + m_browserFuncs.invoke = _NPN_Invoke; + m_browserFuncs.invokeDefault = _NPN_InvokeDefault; + m_browserFuncs.evaluate = _NPN_Evaluate; + m_browserFuncs.getproperty = _NPN_GetProperty; + m_browserFuncs.setproperty = _NPN_SetProperty; + m_browserFuncs.removeproperty = _NPN_RemoveProperty; + m_browserFuncs.hasproperty = _NPN_HasProperty; + m_browserFuncs.hasmethod = _NPN_HasMethod; + m_browserFuncs.setexception = _NPN_SetException; + m_browserFuncs.enumerate = _NPN_Enumerate; + m_browserFuncs.construct = _NPN_Construct; + m_browserFuncs.getvalueforurl = NPN_GetValueForURL; + m_browserFuncs.setvalueforurl = NPN_SetValueForURL; + m_browserFuncs.getauthenticationinfo = NPN_GetAuthenticationInfo; +} +#endif + +#if ENABLE(PLUGIN_PACKAGE_SIMPLE_HASH) +unsigned PluginPackage::hash() const +{ + unsigned hashCodes[] = { + m_path.impl()->hash(), + m_lastModified + }; + + return WTF::StringHasher::createBlobHash<sizeof(hashCodes)>(hashCodes); +} + +bool PluginPackage::equal(const PluginPackage& a, const PluginPackage& b) +{ + return a.m_description == b.m_description; +} +#endif + +int PluginPackage::compareFileVersion(const PlatformModuleVersion& compareVersion) const +{ + // return -1, 0, or 1 if plug-in version is less than, equal to, or greater than + // the passed version + +#if OS(WINDOWS) + if (m_moduleVersion.mostSig != compareVersion.mostSig) + return m_moduleVersion.mostSig > compareVersion.mostSig ? 1 : -1; + if (m_moduleVersion.leastSig != compareVersion.leastSig) + return m_moduleVersion.leastSig > compareVersion.leastSig ? 1 : -1; +#else + if (m_moduleVersion != compareVersion) + return m_moduleVersion > compareVersion ? 1 : -1; +#endif + + return 0; +} + +#if ENABLE(NETSCAPE_PLUGIN_METADATA_CACHE) +bool PluginPackage::ensurePluginLoaded() +{ + if (!m_infoIsFromCache) + return m_isLoaded; + + m_quirks = PluginQuirkSet(); + m_name = String(); + m_description = String(); + m_fullMIMEDescription = String(); + m_moduleVersion = 0; + + return fetchInfo(); +} +#endif + +} |