WebCore/plugins/gtk/PluginPackageGtk.cpp - platform/external/webkit - Git at Google

 /*
  * Copyright (C) 2006, 2007 Apple Inc.  All rights reserved.
  * Copyright (C) 2008 Collabora Ltd. All rights reserved.
  * Copyright (C) 2008 Nuanti Ltd.
  * Copyright (C) 2008 Novell 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 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 "CString.h"
 #include "MIMETypeRegistry.h"
 #include "NotImplemented.h"
 #include "npruntime_impl.h"
 #include "PluginDebug.h"

 namespace WebCore {

 static PlatformModuleVersion getModuleVersion(const char *description)
 {
     // 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

     PlatformModuleVersion version = 0;

     if (!description)
         return 0;

     if (g_str_has_prefix(description, "Shockwave Flash ") && strlen(description) >= 19) {
         // The flash version as a PlatformModuleVersion differs in GTK 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 in GTK, Flash's version may be
         // 0x0a000000 instead of 0x000a0000. This avoids having to modify
         // PlatformModuleVersion in the GTK port

         char **version_parts = g_strsplit(description + 16, " ", -1);
         if (!version_parts)
             return 0;

         int parts_length = g_strv_length(version_parts);

         if (parts_length >= 1) {
             guint16 major = 0, minor = 0;
             if (sscanf(version_parts[0], "%" G_GUINT16_FORMAT ".%" G_GUINT16_FORMAT, &major, &minor) == 2)
                 version = ((guint8)major << 24) | ((guint8)minor << 16);
         }

         if (parts_length >= 2) {
             char *rev_str = version_parts[1];
             if (strlen(rev_str) > 1 && (rev_str[0] == 'r' || rev_str[0] == 'b'))
                 version |= (guint16)atoi(rev_str + 1);
         }

         g_strfreev(version_parts);
     }

     return version;
 }

 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);
         } else {
             // Flash 9 and older requests windowless plugins if we return a mozilla user agent
             m_quirks.add(PluginQuirkWantsMozillaUserAgent);
         }

         m_quirks.add(PluginQuirkThrottleInvalidate);
         m_quirks.add(PluginQuirkThrottleWMUserPlusOneMessages);
         m_quirks.add(PluginQuirkFlashURLNotifyBug);
     }
 }

 bool PluginPackage::fetchInfo()
 {
 #if defined(XP_UNIX)
     if (!load())
         return false;

     NP_GetMIMEDescriptionFuncPtr NP_GetMIMEDescription;
     NPP_GetValueProcPtr NPP_GetValue;

     g_module_symbol(m_module, "NP_GetMIMEDescription", (void**)&NP_GetMIMEDescription);
     g_module_symbol(m_module, "NP_GetValue", (void**)&NPP_GetValue);

     char* buffer = 0;
     NPError err = NPP_GetValue(0, NPPVpluginNameString, &buffer);
     if (err == NPERR_NO_ERROR)
         m_name = buffer;

     buffer = 0;
     err = NPP_GetValue(0, NPPVpluginDescriptionString, &buffer);
     if (err == NPERR_NO_ERROR) {
         m_description = buffer;
         m_moduleVersion = getModuleVersion(buffer);
     }

     const gchar* types = NP_GetMIMEDescription();
     gchar** mimeDescs = g_strsplit(types, ";", -1);
     for (int i = 0; mimeDescs[i] && mimeDescs[i][0]; i++) {
         gchar** mimeData = g_strsplit(mimeDescs[i], ":", 3);
         if (g_strv_length(mimeData) < 3) {
             g_strfreev(mimeData);
             continue;
         }

         String description = String::fromUTF8(mimeData[2]);
         gchar** extensions = g_strsplit(mimeData[1], ",", -1);

         Vector<String> extVector;
         for (int j = 0; extensions[j]; j++)
             extVector.append(String::fromUTF8(extensions[j]));

         determineQuirks(mimeData[0]);
         m_mimeToExtensions.add(mimeData[0], extVector);
         m_mimeToDescriptions.add(mimeData[0], description);

         g_strfreev(extensions);
         g_strfreev(mimeData);
     }
     g_strfreev(mimeDescs);

     return true;
 #else
     notImplemented();
     return false;
 #endif
 }

 bool PluginPackage::load()
 {
     if (m_isLoaded) {
         m_loadCount++;
         return true;
     }

     m_module = g_module_open((m_path.utf8()).data(), G_MODULE_BIND_LOCAL);

     if (!m_module) {
         LOG(Plugin,"Module Load Failed :%s, Error:%s\n", (m_path.utf8()).data(), g_module_error());
         return false;
     }

     m_isLoaded = true;

     NP_InitializeFuncPtr NP_Initialize;
     NPError npErr;

     g_module_symbol(m_module, "NP_Initialize", (void**)&NP_Initialize);
     g_module_symbol(m_module, "NP_Shutdown", (void**)&m_NPP_Shutdown);

     if (!NP_Initialize || !m_NPP_Shutdown)
         goto abort;

     memset(&m_pluginFuncs, 0, sizeof(m_pluginFuncs));
     m_pluginFuncs.size = sizeof(m_pluginFuncs);

     m_browserFuncs.size = sizeof (m_browserFuncs);
     m_browserFuncs.version = NP_VERSION_MINOR;
     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.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.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_HasMethod;
     m_browserFuncs.hasmethod = _NPN_HasProperty;
     m_browserFuncs.setexception = _NPN_SetException;
     m_browserFuncs.enumerate = _NPN_Enumerate;
     m_browserFuncs.construct = _NPN_Construct;

 #if defined(XP_UNIX)
     npErr = NP_Initialize(&m_browserFuncs, &m_pluginFuncs);
 #else
     npErr = NP_Initialize(&m_browserFuncs);
 #endif
     if (npErr != NPERR_NO_ERROR)
         goto abort;

     m_loadCount++;
     return true;

 abort:
     unloadWithoutShutdown();
     return false;
 }

 unsigned PluginPackage::hash() const
 {
     unsigned hashCodes[2] = {
         m_path.impl()->hash(),
         m_lastModified
     };

     return StringImpl::computeHash(reinterpret_cast<UChar*>(hashCodes), 2 * sizeof(unsigned) / sizeof(UChar));
 }

 bool PluginPackage::equal(const PluginPackage& a, const PluginPackage& b)
 {
     return a.m_description == b.m_description;
 }

 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 (m_moduleVersion != compareVersion)
         return m_moduleVersion > compareVersion ? 1 : -1;
     return 0;
 }

 }
	/*
	* Copyright (C) 2006, 2007 Apple Inc. All rights reserved.
	* Copyright (C) 2008 Collabora Ltd. All rights reserved.
	* Copyright (C) 2008 Nuanti Ltd.
	* Copyright (C) 2008 Novell 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 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 "CString.h"
	#include "MIMETypeRegistry.h"
	#include "NotImplemented.h"
	#include "npruntime_impl.h"
	#include "PluginDebug.h"

	namespace WebCore {

	static PlatformModuleVersion getModuleVersion(const char *description)
	{
	// 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

	PlatformModuleVersion version = 0;

	if (!description)
	return 0;

	if (g_str_has_prefix(description, "Shockwave Flash ") && strlen(description) >= 19) {
	// The flash version as a PlatformModuleVersion differs in GTK 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 in GTK, Flash's version may be
	// 0x0a000000 instead of 0x000a0000. This avoids having to modify
	// PlatformModuleVersion in the GTK port

	char **version_parts = g_strsplit(description + 16, " ", -1);
	if (!version_parts)
	return 0;

	int parts_length = g_strv_length(version_parts);

	if (parts_length >= 1) {
	guint16 major = 0, minor = 0;
	if (sscanf(version_parts[0], "%" G_GUINT16_FORMAT ".%" G_GUINT16_FORMAT, &major, &minor) == 2)
	version = ((guint8)major << 24) \| ((guint8)minor << 16);
	}

	if (parts_length >= 2) {
	char *rev_str = version_parts[1];
	if (strlen(rev_str) > 1 && (rev_str[0] == 'r' \|\| rev_str[0] == 'b'))
	version \|= (guint16)atoi(rev_str + 1);
	}

	g_strfreev(version_parts);
	}

	return version;
	}

	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);
	} else {
	// Flash 9 and older requests windowless plugins if we return a mozilla user agent
	m_quirks.add(PluginQuirkWantsMozillaUserAgent);
	}

	m_quirks.add(PluginQuirkThrottleInvalidate);
	m_quirks.add(PluginQuirkThrottleWMUserPlusOneMessages);
	m_quirks.add(PluginQuirkFlashURLNotifyBug);
	}
	}

	bool PluginPackage::fetchInfo()
	{
	#if defined(XP_UNIX)
	if (!load())
	return false;

	NP_GetMIMEDescriptionFuncPtr NP_GetMIMEDescription;
	NPP_GetValueProcPtr NPP_GetValue;

	g_module_symbol(m_module, "NP_GetMIMEDescription", (void**)&NP_GetMIMEDescription);
	g_module_symbol(m_module, "NP_GetValue", (void**)&NPP_GetValue);

	char* buffer = 0;
	NPError err = NPP_GetValue(0, NPPVpluginNameString, &buffer);
	if (err == NPERR_NO_ERROR)
	m_name = buffer;

	buffer = 0;
	err = NPP_GetValue(0, NPPVpluginDescriptionString, &buffer);
	if (err == NPERR_NO_ERROR) {
	m_description = buffer;
	m_moduleVersion = getModuleVersion(buffer);
	}

	const gchar* types = NP_GetMIMEDescription();
	gchar** mimeDescs = g_strsplit(types, ";", -1);
	for (int i = 0; mimeDescs[i] && mimeDescs[i][0]; i++) {
	gchar** mimeData = g_strsplit(mimeDescs[i], ":", 3);
	if (g_strv_length(mimeData) < 3) {
	g_strfreev(mimeData);
	continue;
	}

	String description = String::fromUTF8(mimeData[2]);
	gchar** extensions = g_strsplit(mimeData[1], ",", -1);

	Vector<String> extVector;
	for (int j = 0; extensions[j]; j++)
	extVector.append(String::fromUTF8(extensions[j]));

	determineQuirks(mimeData[0]);
	m_mimeToExtensions.add(mimeData[0], extVector);
	m_mimeToDescriptions.add(mimeData[0], description);

	g_strfreev(extensions);
	g_strfreev(mimeData);
	}
	g_strfreev(mimeDescs);

	return true;
	#else
	notImplemented();
	return false;
	#endif
	}

	bool PluginPackage::load()
	{
	if (m_isLoaded) {
	m_loadCount++;
	return true;
	}

	m_module = g_module_open((m_path.utf8()).data(), G_MODULE_BIND_LOCAL);

	if (!m_module) {
	LOG(Plugin,"Module Load Failed :%s, Error:%s\n", (m_path.utf8()).data(), g_module_error());
	return false;
	}

	m_isLoaded = true;

	NP_InitializeFuncPtr NP_Initialize;
	NPError npErr;

	g_module_symbol(m_module, "NP_Initialize", (void**)&NP_Initialize);
	g_module_symbol(m_module, "NP_Shutdown", (void**)&m_NPP_Shutdown);

	if (!NP_Initialize \|\| !m_NPP_Shutdown)
	goto abort;

	memset(&m_pluginFuncs, 0, sizeof(m_pluginFuncs));
	m_pluginFuncs.size = sizeof(m_pluginFuncs);

	m_browserFuncs.size = sizeof (m_browserFuncs);
	m_browserFuncs.version = NP_VERSION_MINOR;
	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.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.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_HasMethod;
	m_browserFuncs.hasmethod = _NPN_HasProperty;
	m_browserFuncs.setexception = _NPN_SetException;
	m_browserFuncs.enumerate = _NPN_Enumerate;
	m_browserFuncs.construct = _NPN_Construct;

	#if defined(XP_UNIX)
	npErr = NP_Initialize(&m_browserFuncs, &m_pluginFuncs);
	#else
	npErr = NP_Initialize(&m_browserFuncs);
	#endif
	if (npErr != NPERR_NO_ERROR)
	goto abort;

	m_loadCount++;
	return true;

	abort:
	unloadWithoutShutdown();
	return false;
	}

	unsigned PluginPackage::hash() const
	{
	unsigned hashCodes[2] = {
	m_path.impl()->hash(),
	m_lastModified
	};

	return StringImpl::computeHash(reinterpret_cast<UChar>(hashCodes), 2 sizeof(unsigned) / sizeof(UChar));
	}

	bool PluginPackage::equal(const PluginPackage& a, const PluginPackage& b)
	{
	return a.m_description == b.m_description;
	}

	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 (m_moduleVersion != compareVersion)
	return m_moduleVersion > compareVersion ? 1 : -1;
	return 0;
	}

	}