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// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "config.h"
#include "webkit/glue/plugins/plugin_lib.h"
#include "base/file_version_info.h"
#include "base/path_service.h"
#include "base/string_util.h"
#include "base/sys_string_conversions.h"
#include "webkit/activex_shim/npp_impl.h"
#include "webkit/default_plugin/plugin_main.h"
#include "webkit/glue/plugins/plugin_constants_win.h"
#include "webkit/glue/plugins/plugin_list.h"
#ifdef GEARS_STATIC_LIB
// defined in gears/base/common/module.cc
NPError API_CALL Gears_NP_GetEntryPoints(NPPluginFuncs* funcs);
NPError API_CALL Gears_NP_Initialize(NPNetscapeFuncs* funcs);
NPError API_CALL Gears_NP_Shutdown(void);
#endif
namespace NPAPI
{
// This struct fully describes a plugin. For external plugins, it's read in from
// the version info of the dll; For internal plugins, it's predefined and
// includes addresses of entry functions.
struct PluginVersionInfo {
const wchar_t* path;
const wchar_t* product_name;
const wchar_t* file_description;
const wchar_t* file_version;
const wchar_t* mime_types;
const wchar_t* file_extents;
const wchar_t* file_open_names;
NP_GetEntryPointsFunc np_getentrypoints;
NP_InitializeFunc np_initialize;
NP_ShutdownFunc np_shutdown;
};
static const PluginVersionInfo g_internal_plugins[] = {
{
kActiveXShimFileName,
L"ActiveX Plug-in",
L"ActiveX Plug-in provides a shim to support ActiveX controls",
L"1, 0, 0, 1",
L"application/x-oleobject|application/oleobject",
L"*|*",
L"",
activex_shim::ActiveX_Shim_NP_GetEntryPoints,
activex_shim::ActiveX_Shim_NP_Initialize,
activex_shim::ActiveX_Shim_NP_Shutdown
},
{
kActiveXShimFileNameForMediaPlayer,
kActiveXShimFileNameForMediaPlayer,
L"Windows Media Player",
L"1, 0, 0, 1",
L"application/x-ms-wmp|application/asx|video/x-ms-asf-plugin|"
L"application/x-mplayer2|video/x-ms-asf|video/x-ms-wm|audio/x-ms-wma|"
L"audio/x-ms-wax|video/x-ms-wmv|video/x-ms-wvx",
L"*|*|*|*|asf,asx,*|wm,*|wma,*|wax,*|wmv,*|wvx,*",
L"",
activex_shim::ActiveX_Shim_NP_GetEntryPoints,
activex_shim::ActiveX_Shim_NP_Initialize,
activex_shim::ActiveX_Shim_NP_Shutdown
},
{
kDefaultPluginLibraryName,
L"Default Plug-in",
L"Provides functionality for installing third-party plug-ins",
L"1, 0, 0, 1",
L"*",
L"",
L"",
default_plugin::NP_GetEntryPoints,
default_plugin::NP_Initialize,
default_plugin::NP_Shutdown
},
#ifdef GEARS_STATIC_LIB
{
kGearsPluginLibraryName,
L"Gears",
L"Statically linked Gears",
L"1, 0, 0, 1",
L"application/x-googlegears",
L"",
L"",
Gears_NP_GetEntryPoints,
Gears_NP_Initialize,
Gears_NP_Shutdown
},
#endif
};
/* static */
PluginLib::NativeLibrary PluginLib::LoadNativeLibrary(
const FilePath& library_path) {
// Switch the current directory to the plugin directory as the plugin
// may have dependencies on dlls in this directory.
bool restore_directory = false;
std::wstring current_directory;
if (PathService::Get(base::DIR_CURRENT, ¤t_directory)) {
FilePath plugin_path = library_path.DirName();
if (!plugin_path.value().empty()) {
PathService::SetCurrentDirectory(plugin_path.value());
restore_directory = true;
}
}
HMODULE module = LoadLibrary(library_path.value().c_str());
if (restore_directory)
PathService::SetCurrentDirectory(current_directory);
return module;
}
/* static */
void PluginLib::UnloadNativeLibrary(NativeLibrary library) {
FreeLibrary(library);
}
/* static */
void* PluginLib::GetFunctionPointerFromNativeLibrary(
NativeLibrary library,
NativeLibraryFunctionNameType name) {
return GetProcAddress(library, name);
}
namespace {
// Creates WebPluginInfo structure based on read in or built in
// PluginVersionInfo.
bool CreateWebPluginInfo(const PluginVersionInfo& pvi,
WebPluginInfo* info,
NP_GetEntryPointsFunc* np_getentrypoints,
NP_InitializeFunc* np_initialize,
NP_ShutdownFunc* np_shutdown) {
std::vector<std::string> mime_types, file_extensions;
std::vector<std::wstring> descriptions;
SplitString(base::SysWideToNativeMB(pvi.mime_types), '|', &mime_types);
SplitString(base::SysWideToNativeMB(pvi.file_extents), '|', &file_extensions);
SplitString(pvi.file_open_names, '|', &descriptions);
info->mime_types.clear();
if (mime_types.empty())
return false;
info->name = pvi.product_name;
info->desc = pvi.file_description;
info->version = pvi.file_version;
info->path = FilePath(pvi.path);
for (size_t i = 0; i < mime_types.size(); ++i) {
WebPluginMimeType mime_type;
mime_type.mime_type = StringToLowerASCII(mime_types[i]);
if (file_extensions.size() > i)
SplitString(file_extensions[i], ',', &mime_type.file_extensions);
if (descriptions.size() > i) {
mime_type.description = descriptions[i];
// Remove the extension list from the description.
size_t ext = mime_type.description.find(L"(*");
if (ext != std::wstring::npos) {
if (ext > 1 && mime_type.description[ext -1] == ' ')
ext--;
mime_type.description.erase(ext);
}
}
info->mime_types.push_back(mime_type);
}
*np_getentrypoints = pvi.np_getentrypoints;
*np_initialize = pvi.np_initialize;
*np_shutdown = pvi.np_shutdown;
return true;
}
}
bool PluginLib::ReadWebPluginInfo(const FilePath &filename,
WebPluginInfo* info,
NP_GetEntryPointsFunc* np_getentrypoints,
NP_InitializeFunc* np_initialize,
NP_ShutdownFunc* np_shutdown) {
for (int i = 0; i < arraysize(g_internal_plugins); ++i) {
if (filename.value() == g_internal_plugins[i].path) {
return CreateWebPluginInfo(g_internal_plugins[i], info, np_getentrypoints,
np_initialize, np_shutdown);
}
}
// On windows, the way we get the mime types for the library is
// to check the version information in the DLL itself. This
// will be a string of the format: <type1>|<type2>|<type3>|...
// For example:
// video/quicktime|audio/aiff|image/jpeg
scoped_ptr<FileVersionInfo> version_info(
FileVersionInfo::CreateFileVersionInfo(filename.value()));
if (!version_info.get())
return false;
std::wstring mime_types = version_info->GetStringValue(L"MIMEType");
std::wstring file_extents = version_info->GetStringValue(L"FileExtents");
std::wstring file_open_names = version_info->GetStringValue(L"FileOpenName");
std::wstring product_name = version_info->product_name();
std::wstring file_description = version_info->file_description();
std::wstring file_version = version_info->file_version();
std::wstring path = filename.value();
PluginVersionInfo pvi;
pvi.mime_types = mime_types.c_str();
pvi.file_extents = file_extents.c_str();
pvi.file_open_names = file_open_names.c_str();
pvi.product_name = product_name.c_str();
pvi.file_description = file_description.c_str();
pvi.file_version = file_version.c_str();
pvi.path = path.c_str();
pvi.np_getentrypoints = NULL;
pvi.np_initialize = NULL;
pvi.np_shutdown = NULL;
return CreateWebPluginInfo(
pvi, info, np_getentrypoints, np_initialize, np_shutdown);
}
} // namespace NPAPI
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