mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
389 lines
9.7 KiB
C++
389 lines
9.7 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/*
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nsPluginsDirWin.cpp
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Windows implementation of the nsPluginsDir/nsPluginsFile classes.
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by Alex Musil
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*/
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#include "mozilla/Util.h"
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#include "nsPluginsDir.h"
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#include "prlink.h"
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#include "plstr.h"
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#include "prmem.h"
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#include "prprf.h"
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#include "windows.h"
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#include "winbase.h"
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#include "nsString.h"
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#include "nsILocalFile.h"
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#include "nsUnicharUtils.h"
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using namespace mozilla;
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/* Local helper functions */
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static char* GetKeyValue(void* verbuf, const WCHAR* key,
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UINT language, UINT codepage)
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{
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WCHAR keybuf[64]; // plenty for the template below, with the longest key
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// we use (currently "FileDescription")
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const WCHAR keyFormat[] = L"\\StringFileInfo\\%04X%04X\\%s";
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WCHAR *buf = NULL;
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UINT blen;
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if (_snwprintf_s(keybuf, ArrayLength(keybuf), _TRUNCATE,
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keyFormat, language, codepage, key) < 0)
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{
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NS_NOTREACHED("plugin info key too long for buffer!");
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return nsnull;
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}
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if (::VerQueryValueW(verbuf, keybuf, (void **)&buf, &blen) == 0 ||
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buf == nsnull || blen == 0)
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{
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return nsnull;
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}
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return PL_strdup(NS_ConvertUTF16toUTF8(buf, blen).get());
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}
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static char* GetVersion(void* verbuf)
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{
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VS_FIXEDFILEINFO *fileInfo;
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UINT fileInfoLen;
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::VerQueryValueW(verbuf, L"\\", (void **)&fileInfo, &fileInfoLen);
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if (fileInfo) {
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return PR_smprintf("%ld.%ld.%ld.%ld",
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HIWORD(fileInfo->dwFileVersionMS),
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LOWORD(fileInfo->dwFileVersionMS),
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HIWORD(fileInfo->dwFileVersionLS),
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LOWORD(fileInfo->dwFileVersionLS));
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}
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return nsnull;
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}
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static PRUint32 CalculateVariantCount(char* mimeTypes)
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{
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PRUint32 variants = 1;
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if (!mimeTypes)
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return 0;
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char* index = mimeTypes;
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while (*index) {
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if (*index == '|')
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variants++;
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++index;
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}
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return variants;
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}
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static char** MakeStringArray(PRUint32 variants, char* data)
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{
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// The number of variants has been calculated based on the mime
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// type array. Plugins are not explicitely required to match
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// this number in two other arrays: file extention array and mime
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// description array, and some of them actually don't.
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// We should handle such situations gracefully
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if ((variants <= 0) || !data)
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return NULL;
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char ** array = (char **)PR_Calloc(variants, sizeof(char *));
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if (!array)
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return NULL;
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char * start = data;
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for (PRUint32 i = 0; i < variants; i++) {
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char * p = PL_strchr(start, '|');
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if (p)
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*p = 0;
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array[i] = PL_strdup(start);
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if (!p) {
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// nothing more to look for, fill everything left
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// with empty strings and break
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while(++i < variants)
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array[i] = PL_strdup("");
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break;
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}
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start = ++p;
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}
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return array;
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}
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static void FreeStringArray(PRUint32 variants, char ** array)
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{
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if ((variants == 0) || !array)
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return;
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for (PRUint32 i = 0; i < variants; i++) {
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if (array[i]) {
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PL_strfree(array[i]);
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array[i] = NULL;
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}
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}
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PR_Free(array);
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}
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static bool CanLoadPlugin(const PRUnichar* aBinaryPath)
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{
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#if defined(_M_IX86) || defined(_M_X64) || defined(_M_IA64)
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bool canLoad = false;
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HANDLE file = CreateFileW(aBinaryPath, GENERIC_READ,
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FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
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OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
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if (file != INVALID_HANDLE_VALUE) {
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HANDLE map = CreateFileMappingW(file, NULL, PAGE_READONLY, 0,
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GetFileSize(file, NULL), NULL);
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if (map != NULL) {
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LPVOID mapView = MapViewOfFile(map, FILE_MAP_READ, 0, 0, 0);
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if (mapView != NULL) {
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if (((IMAGE_DOS_HEADER*)mapView)->e_magic == IMAGE_DOS_SIGNATURE) {
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long peImageHeaderStart = (((IMAGE_DOS_HEADER*)mapView)->e_lfanew);
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if (peImageHeaderStart != 0L) {
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DWORD arch = (((IMAGE_NT_HEADERS*)((LPBYTE)mapView + peImageHeaderStart))->FileHeader.Machine);
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#ifdef _M_IX86
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canLoad = (arch == IMAGE_FILE_MACHINE_I386);
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#elif defined(_M_X64)
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canLoad = (arch == IMAGE_FILE_MACHINE_AMD64);
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#elif defined(_M_IA64)
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canLoad = (arch == IMAGE_FILE_MACHINE_IA64);
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#endif
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}
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}
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UnmapViewOfFile(mapView);
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}
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CloseHandle(map);
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}
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CloseHandle(file);
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}
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return canLoad;
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#else
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// Assume correct binaries for unhandled cases.
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return true;
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#endif
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}
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/* nsPluginsDir implementation */
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// The file name must be in the form "np*.dll"
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bool nsPluginsDir::IsPluginFile(nsIFile* file)
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{
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nsCAutoString path;
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if (NS_FAILED(file->GetNativePath(path)))
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return false;
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const char *cPath = path.get();
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// this is most likely a path, so skip to the filename
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const char* filename = PL_strrchr(cPath, '\\');
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if (filename)
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++filename;
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else
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filename = cPath;
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char* extension = PL_strrchr(filename, '.');
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if (extension)
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++extension;
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PRUint32 fullLength = PL_strlen(filename);
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PRUint32 extLength = PL_strlen(extension);
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if (fullLength >= 7 && extLength == 3) {
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if (!PL_strncasecmp(filename, "np", 2) && !PL_strncasecmp(extension, "dll", 3)) {
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// don't load OJI-based Java plugins
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if (!PL_strncasecmp(filename, "npoji", 5) ||
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!PL_strncasecmp(filename, "npjava", 6))
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return false;
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return true;
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}
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}
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return false;
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}
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/* nsPluginFile implementation */
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nsPluginFile::nsPluginFile(nsIFile* file)
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: mPlugin(file)
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{
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// nada
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}
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nsPluginFile::~nsPluginFile()
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{
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// nada
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}
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/**
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* Loads the plugin into memory using NSPR's shared-library loading
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* mechanism. Handles platform differences in loading shared libraries.
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*/
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nsresult nsPluginFile::LoadPlugin(PRLibrary **outLibrary)
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{
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nsCOMPtr<nsILocalFile> plugin = do_QueryInterface(mPlugin);
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if (!plugin)
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return NS_ERROR_NULL_POINTER;
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bool protectCurrentDirectory = true;
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nsAutoString pluginFolderPath;
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plugin->GetPath(pluginFolderPath);
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PRInt32 idx = pluginFolderPath.RFindChar('\\');
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if (kNotFound == idx)
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return NS_ERROR_FILE_INVALID_PATH;
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if (Substring(pluginFolderPath, idx).LowerCaseEqualsLiteral("\\np32dsw.dll")) {
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protectCurrentDirectory = false;
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}
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pluginFolderPath.SetLength(idx);
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BOOL restoreOrigDir = FALSE;
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WCHAR aOrigDir[MAX_PATH + 1];
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DWORD dwCheck = GetCurrentDirectoryW(MAX_PATH, aOrigDir);
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NS_ASSERTION(dwCheck <= MAX_PATH + 1, "Error in Loading plugin");
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if (dwCheck <= MAX_PATH + 1) {
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restoreOrigDir = SetCurrentDirectoryW(pluginFolderPath.get());
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NS_ASSERTION(restoreOrigDir, "Error in Loading plugin");
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}
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if (protectCurrentDirectory) {
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SetDllDirectory(NULL);
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}
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nsresult rv = plugin->Load(outLibrary);
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if (NS_FAILED(rv))
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*outLibrary = NULL;
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if (protectCurrentDirectory) {
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SetDllDirectory(L"");
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}
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if (restoreOrigDir) {
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BOOL bCheck = SetCurrentDirectoryW(aOrigDir);
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NS_ASSERTION(bCheck, "Error in Loading plugin");
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}
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return rv;
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}
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/**
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* Obtains all of the information currently available for this plugin.
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*/
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nsresult nsPluginFile::GetPluginInfo(nsPluginInfo& info, PRLibrary **outLibrary)
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{
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*outLibrary = nsnull;
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nsresult rv = NS_OK;
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DWORD zerome, versionsize;
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void* verbuf = nsnull;
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if (!mPlugin)
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return NS_ERROR_NULL_POINTER;
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nsAutoString fullPath;
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if (NS_FAILED(rv = mPlugin->GetPath(fullPath)))
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return rv;
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if (!CanLoadPlugin(fullPath.get()))
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return NS_ERROR_FAILURE;
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nsAutoString fileName;
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if (NS_FAILED(rv = mPlugin->GetLeafName(fileName)))
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return rv;
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LPCWSTR lpFilepath = fullPath.get();
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versionsize = ::GetFileVersionInfoSizeW(lpFilepath, &zerome);
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if (versionsize > 0)
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verbuf = PR_Malloc(versionsize);
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if (!verbuf)
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return NS_ERROR_OUT_OF_MEMORY;
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if (::GetFileVersionInfoW(lpFilepath, NULL, versionsize, verbuf))
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{
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// TODO: get appropriately-localized info from plugin file
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UINT lang = 1033; // language = English
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UINT cp = 1252; // codepage = Western
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info.fName = GetKeyValue(verbuf, L"ProductName", lang, cp);
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info.fDescription = GetKeyValue(verbuf, L"FileDescription", lang, cp);
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char *mimeType = GetKeyValue(verbuf, L"MIMEType", lang, cp);
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char *mimeDescription = GetKeyValue(verbuf, L"FileOpenName", lang, cp);
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char *extensions = GetKeyValue(verbuf, L"FileExtents", lang, cp);
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info.fVariantCount = CalculateVariantCount(mimeType);
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info.fMimeTypeArray = MakeStringArray(info.fVariantCount, mimeType);
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info.fMimeDescriptionArray = MakeStringArray(info.fVariantCount, mimeDescription);
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info.fExtensionArray = MakeStringArray(info.fVariantCount, extensions);
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info.fFullPath = PL_strdup(NS_ConvertUTF16toUTF8(fullPath).get());
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info.fFileName = PL_strdup(NS_ConvertUTF16toUTF8(fileName).get());
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info.fVersion = GetVersion(verbuf);
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PL_strfree(mimeType);
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PL_strfree(mimeDescription);
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PL_strfree(extensions);
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}
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else {
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rv = NS_ERROR_FAILURE;
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}
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PR_Free(verbuf);
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return rv;
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}
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nsresult nsPluginFile::FreePluginInfo(nsPluginInfo& info)
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{
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if (info.fName)
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PL_strfree(info.fName);
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if (info.fDescription)
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PL_strfree(info.fDescription);
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if (info.fMimeTypeArray)
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FreeStringArray(info.fVariantCount, info.fMimeTypeArray);
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if (info.fMimeDescriptionArray)
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FreeStringArray(info.fVariantCount, info.fMimeDescriptionArray);
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if (info.fExtensionArray)
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FreeStringArray(info.fVariantCount, info.fExtensionArray);
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if (info.fFullPath)
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PL_strfree(info.fFullPath);
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if (info.fFileName)
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PL_strfree(info.fFileName);
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if (info.fVersion)
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PR_smprintf_free(info.fVersion);
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ZeroMemory((void *)&info, sizeof(info));
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return NS_OK;
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}
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