diff options
Diffstat (limited to 'src/libs/xpcom18a4/xpcom/io/nsLocalFileWin.cpp')
| -rw-r--r-- | src/libs/xpcom18a4/xpcom/io/nsLocalFileWin.cpp | 2440 |
1 files changed, 2440 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/xpcom/io/nsLocalFileWin.cpp b/src/libs/xpcom18a4/xpcom/io/nsLocalFileWin.cpp new file mode 100644 index 00000000..63414fc3 --- /dev/null +++ b/src/libs/xpcom18a4/xpcom/io/nsLocalFileWin.cpp @@ -0,0 +1,2440 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is Mozilla Communicator client code, released + * March 31, 1998. + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1998-1999 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Doug Turner <dougt@netscape.com> + * Dean Tessman <dean_tessman@hotmail.com> + * Brodie Thiesfield <brofield@jellycan.com> + * + * Alternatively, the contents of this file may be used under the terms of + * either of the GNU General Public License Version 2 or later (the "GPL"), + * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + + +#include "nsCOMPtr.h" +#include "nsMemory.h" + +#include "nsLocalFile.h" +#include "nsNativeCharsetUtils.h" + +#include "nsISimpleEnumerator.h" +#include "nsIComponentManager.h" +#include "prtypes.h" +#include "prio.h" + +#include "nsXPIDLString.h" +#include "nsReadableUtils.h" + +#include <direct.h> +#include <windows.h> + +#include "shellapi.h" +#include "shlguid.h" + +#include <io.h> +#include <stdio.h> +#include <stdlib.h> +#include <mbstring.h> + +#include "nsXPIDLString.h" +#include "prproces.h" +#include "nsITimelineService.h" + +#include "nsAutoLock.h" +#include "SpecialSystemDirectory.h" + +// _mbsstr isn't declared in w32api headers but it's there in the libs +#ifdef __MINGW32__ +extern "C" { +unsigned char *_mbsstr( const unsigned char *str, + const unsigned char *substr ); +} +#endif + +class nsDriveEnumerator : public nsISimpleEnumerator +{ +public: + nsDriveEnumerator(); + virtual ~nsDriveEnumerator(); + NS_DECL_ISUPPORTS + NS_DECL_NSISIMPLEENUMERATOR + nsresult Init(); +private: + /* mDrives and mLetter share data + * Init sets them. + * HasMoreElements reads mLetter. + * GetNext advances mLetter. + */ + nsCString mDrives; + const char *mLetter; +}; + +//---------------------------------------------------------------------------- +// short cut resolver +//---------------------------------------------------------------------------- + +class ShortcutResolver +{ +public: + ShortcutResolver(); + // nonvirtual since we're not subclassed + ~ShortcutResolver(); + + nsresult Init(); + nsresult Resolve(const WCHAR* in, char* out); + +private: + PRLock* mLock; + IPersistFile* mPersistFile; + IShellLink* mShellLink; +}; + +ShortcutResolver::ShortcutResolver() +{ + mLock = nsnull; + mPersistFile = nsnull; + mShellLink = nsnull; +} + +ShortcutResolver::~ShortcutResolver() +{ + if (mLock) + PR_DestroyLock(mLock); + + // Release the pointer to the IPersistFile interface. + if (mPersistFile) + mPersistFile->Release(); + + // Release the pointer to the IShellLink interface. + if(mShellLink) + mShellLink->Release(); + + CoUninitialize(); +} + +nsresult +ShortcutResolver::Init() +{ + CoInitialize(NULL); // FIX: we should probably move somewhere higher up during startup + + mLock = PR_NewLock(); + if (!mLock) + return NS_ERROR_FAILURE; + + HRESULT hres = CoCreateInstance(CLSID_ShellLink, + NULL, + CLSCTX_INPROC_SERVER, + IID_IShellLink, + (void**)&mShellLink); + if (SUCCEEDED(hres)) + { + // Get a pointer to the IPersistFile interface. + hres = mShellLink->QueryInterface(IID_IPersistFile, (void**)&mPersistFile); + } + + if (mPersistFile == nsnull || mShellLink == nsnull) + return NS_ERROR_FAILURE; + + return NS_OK; +} + +// |out| must be an allocated buffer of size MAX_PATH +nsresult +ShortcutResolver::Resolve(const WCHAR* in, char* out) +{ + nsAutoLock lock(mLock); + + // see if we can Load the path. + HRESULT hres = mPersistFile->Load(in, STGM_READ); + + if (FAILED(hres)) + return NS_ERROR_FAILURE; + + // Resolve the link. + hres = mShellLink->Resolve(nsnull, SLR_NO_UI ); + + if (FAILED(hres)) + return NS_ERROR_FAILURE; + + WIN32_FIND_DATA wfd; + // Get the path to the link target. + hres = mShellLink->GetPath( out, MAX_PATH, &wfd, SLGP_UNCPRIORITY ); + if (FAILED(hres)) + return NS_ERROR_FAILURE; + return NS_OK; +} + +static ShortcutResolver * gResolver = nsnull; + +static nsresult NS_CreateShortcutResolver() +{ + gResolver = new ShortcutResolver(); + if (!gResolver) + return NS_ERROR_OUT_OF_MEMORY; + + return gResolver->Init(); +} + +static void NS_DestroyShortcutResolver() +{ + delete gResolver; + gResolver = nsnull; +} + + +//----------------------------------------------------------------------------- +// static helper functions +//----------------------------------------------------------------------------- + +// certainly not all the error that can be +// encountered, but many of them common ones +static nsresult ConvertWinError(DWORD winErr) +{ + nsresult rv; + + switch (winErr) + { + case ERROR_FILE_NOT_FOUND: + case ERROR_PATH_NOT_FOUND: + case ERROR_INVALID_DRIVE: + rv = NS_ERROR_FILE_NOT_FOUND; + break; + case ERROR_ACCESS_DENIED: + case ERROR_NOT_SAME_DEVICE: + rv = NS_ERROR_FILE_ACCESS_DENIED; + break; + case ERROR_NOT_ENOUGH_MEMORY: + case ERROR_INVALID_BLOCK: + case ERROR_INVALID_HANDLE: + case ERROR_ARENA_TRASHED: + rv = NS_ERROR_OUT_OF_MEMORY; + break; + case ERROR_CURRENT_DIRECTORY: + rv = NS_ERROR_FILE_DIR_NOT_EMPTY; + break; + case ERROR_WRITE_PROTECT: + rv = NS_ERROR_FILE_READ_ONLY; + break; + case ERROR_HANDLE_DISK_FULL: + rv = NS_ERROR_FILE_TOO_BIG; + break; + case ERROR_FILE_EXISTS: + case ERROR_ALREADY_EXISTS: + case ERROR_CANNOT_MAKE: + rv = NS_ERROR_FILE_ALREADY_EXISTS; + break; + case 0: + rv = NS_OK; + break; + default: + rv = NS_ERROR_FAILURE; + break; + } + return rv; +} + +// definition of INVALID_SET_FILE_POINTER from VC.NET header files +// it doesn't appear to be defined by VC6 +#ifndef INVALID_SET_FILE_POINTER +# define INVALID_SET_FILE_POINTER ((DWORD)-1) +#endif +// same goes for INVALID_FILE_ATTRIBUTES +#ifndef INVALID_FILE_ATTRIBUTES +# define INVALID_FILE_ATTRIBUTES ((DWORD)-1) +#endif + +// as suggested in the MSDN documentation on SetFilePointer +static __int64 +MyFileSeek64(HANDLE aHandle, __int64 aDistance, DWORD aMoveMethod) +{ + LARGE_INTEGER li; + + li.QuadPart = aDistance; + li.LowPart = SetFilePointer(aHandle, li.LowPart, &li.HighPart, aMoveMethod); + if (li.LowPart == INVALID_SET_FILE_POINTER && GetLastError() != NO_ERROR) + { + li.QuadPart = -1; + } + + return li.QuadPart; +} + +static PRBool +IsShortcutPath(const char *path) +{ + // Under Windows, the shortcuts are just files with a ".lnk" extension. + // Note also that we don't resolve links in the middle of paths. + // i.e. "c:\foo.lnk\bar.txt" is invalid. + NS_ABORT_IF_FALSE(path, "don't pass nulls"); + const char * ext = (const char *) _mbsrchr((const unsigned char *)path, '.'); + if (!ext || 0 != stricmp(ext + 1, "lnk")) + return PR_FALSE; + return PR_TRUE; +} + +//----------------------------------------------------------------------------- +// nsDirEnumerator +//----------------------------------------------------------------------------- + +class nsDirEnumerator : public nsISimpleEnumerator +{ + public: + + NS_DECL_ISUPPORTS + + nsDirEnumerator() : mDir(nsnull) + { + } + + nsresult Init(nsILocalFile* parent) + { + nsCAutoString filepath; + parent->GetNativeTarget(filepath); + + if (filepath.IsEmpty()) + { + parent->GetNativePath(filepath); + } + + if (filepath.IsEmpty()) + { + return NS_ERROR_UNEXPECTED; + } + + mDir = PR_OpenDir(filepath.get()); + if (mDir == nsnull) // not a directory? + return NS_ERROR_FAILURE; + + mParent = parent; + return NS_OK; + } + + NS_IMETHOD HasMoreElements(PRBool *result) + { + nsresult rv; + if (mNext == nsnull && mDir) + { + PRDirEntry* entry = PR_ReadDir(mDir, PR_SKIP_BOTH); + if (entry == nsnull) + { + // end of dir entries + + PRStatus status = PR_CloseDir(mDir); + if (status != PR_SUCCESS) + return NS_ERROR_FAILURE; + mDir = nsnull; + + *result = PR_FALSE; + return NS_OK; + } + + nsCOMPtr<nsIFile> file; + rv = mParent->Clone(getter_AddRefs(file)); + if (NS_FAILED(rv)) + return rv; + + rv = file->AppendNative(nsDependentCString(entry->name)); + if (NS_FAILED(rv)) + return rv; + + // make sure the thing exists. If it does, try the next one. + PRBool exists; + rv = file->Exists(&exists); + if (NS_FAILED(rv) || !exists) + { + return HasMoreElements(result); + } + + mNext = do_QueryInterface(file); + } + *result = mNext != nsnull; + return NS_OK; + } + + NS_IMETHOD GetNext(nsISupports **result) + { + nsresult rv; + PRBool hasMore; + rv = HasMoreElements(&hasMore); + if (NS_FAILED(rv)) return rv; + + *result = mNext; // might return nsnull + NS_IF_ADDREF(*result); + + mNext = nsnull; + return NS_OK; + } + + // dtor can be non-virtual since there are no subclasses, but must be + // public to use the class on the stack. + ~nsDirEnumerator() + { + if (mDir) + { + PRStatus status = PR_CloseDir(mDir); + NS_ASSERTION(status == PR_SUCCESS, "close failed"); + } + } + + protected: + PRDir* mDir; + nsCOMPtr<nsILocalFile> mParent; + nsCOMPtr<nsILocalFile> mNext; +}; + +NS_IMPL_ISUPPORTS1(nsDirEnumerator, nsISimpleEnumerator) + + +//----------------------------------------------------------------------------- +// nsLocalFile <public> +//----------------------------------------------------------------------------- + +nsLocalFile::nsLocalFile() + : mFollowSymlinks(PR_FALSE) +{ + MakeDirty(); + memset(&mFileInfo64, 0, sizeof(mFileInfo64)); +} + +NS_METHOD +nsLocalFile::nsLocalFileConstructor(nsISupports* outer, const nsIID& aIID, void* *aInstancePtr) +{ + NS_ENSURE_ARG_POINTER(aInstancePtr); + NS_ENSURE_NO_AGGREGATION(outer); + + nsLocalFile* inst = new nsLocalFile(); + if (inst == NULL) + return NS_ERROR_OUT_OF_MEMORY; + + nsresult rv = inst->QueryInterface(aIID, aInstancePtr); + if (NS_FAILED(rv)) + { + delete inst; + return rv; + } + return NS_OK; +} + + +//----------------------------------------------------------------------------- +// nsLocalFile::nsISupports +//----------------------------------------------------------------------------- + +NS_IMPL_THREADSAFE_ISUPPORTS2(nsLocalFile, nsILocalFile, nsIFile) + + +//----------------------------------------------------------------------------- +// nsLocalFile <private> +//----------------------------------------------------------------------------- + +nsLocalFile::nsLocalFile(const nsLocalFile& other) + : mDirty(other.mDirty) + , mFollowSymlinks(other.mFollowSymlinks) + , mWorkingPath(other.mWorkingPath) + , mResolvedPath(other.mResolvedPath) + , mFileInfo64(other.mFileInfo64) +{ +} + +// Resolve the shortcut file from mWorkingPath and write the path +// it points to into mResolvedPath. +nsresult +nsLocalFile::ResolveShortcut() +{ + // we can't do anything without the resolver + if (!gResolver) + return NS_ERROR_FAILURE; + + // allocate the memory for the result of the resolution + nsAutoString ucsBuf; + NS_CopyNativeToUnicode(mWorkingPath, ucsBuf); + + mResolvedPath.SetLength(MAX_PATH); + char *resolvedPath = mResolvedPath.BeginWriting(); + + // resolve this shortcut + nsresult rv = gResolver->Resolve(ucsBuf.get(), resolvedPath); + + size_t len = NS_FAILED(rv) ? 0 : strlen(resolvedPath); + mResolvedPath.SetLength(len); + + return rv; +} + +// Resolve any shortcuts and stat the resolved path. After a successful return +// the path is guaranteed valid and the members of mFileInfo64 can be used. +nsresult +nsLocalFile::ResolveAndStat() +{ + // if we aren't dirty then we are already done + if (!mDirty) + return NS_OK; + + // we can't resolve/stat anything that isn't a valid NSPR addressable path + if (mWorkingPath.IsEmpty()) + return NS_ERROR_FILE_INVALID_PATH; + + // this is usually correct + mResolvedPath.Assign(mWorkingPath); + + // slutty hack designed to work around bug 134796 until it is fixed + char temp[4]; + const char *nsprPath = mWorkingPath.get(); + if (mWorkingPath.Length() == 2 && mWorkingPath.CharAt(1) == ':') + { + temp[0] = mWorkingPath[0]; + temp[1] = mWorkingPath[1]; + temp[2] = '\\'; + temp[3] = '\0'; + nsprPath = temp; + } + + // first we will see if the working path exists. If it doesn't then + // there is nothing more that can be done + PRStatus status = PR_GetFileInfo64(nsprPath, &mFileInfo64); + if (status != PR_SUCCESS) + return NS_ERROR_FILE_NOT_FOUND; + + // if this isn't a shortcut file or we aren't following symlinks then we're done + if (!mFollowSymlinks + || mFileInfo64.type != PR_FILE_FILE + || !IsShortcutPath(mWorkingPath.get())) + { + mDirty = PR_FALSE; + return NS_OK; + } + + // we need to resolve this shortcut to what it points to, this will + // set mResolvedPath. Even if it fails we need to have the resolved + // path equal to working path for those functions that always use + // the resolved path. + nsresult rv = ResolveShortcut(); + if (NS_FAILED(rv)) + { + mResolvedPath.Assign(mWorkingPath); + return rv; + } + + // get the details of the resolved path + status = PR_GetFileInfo64(mResolvedPath.get(), &mFileInfo64); + if (status != PR_SUCCESS) + return NS_ERROR_FILE_NOT_FOUND; + + mDirty = PR_FALSE; + return NS_OK; +} + + +//----------------------------------------------------------------------------- +// nsLocalFile::nsIFile,nsILocalFile +//----------------------------------------------------------------------------- + +NS_IMETHODIMP +nsLocalFile::Clone(nsIFile **file) +{ + // Just copy-construct ourselves + *file = new nsLocalFile(*this); + if (!*file) + return NS_ERROR_OUT_OF_MEMORY; + + NS_ADDREF(*file); + + return NS_OK; +} + +NS_IMETHODIMP +nsLocalFile::InitWithNativePath(const nsACString &filePath) +{ + MakeDirty(); + + nsACString::const_iterator begin, end; + filePath.BeginReading(begin); + filePath.EndReading(end); + + // input string must not be empty + if (begin == end) + return NS_ERROR_FAILURE; + + char firstChar = *begin; + char secondChar = *(++begin); + + // just do a sanity check. if it has any forward slashes, it is not a Native path + // on windows. Also, it must have a colon at after the first char. + + char *path = nsnull; + PRInt32 pathLen = 0; + + if ( ( (secondChar == ':') && !FindCharInReadable('/', begin, end) ) || // normal path + ( (firstChar == '\\') && (secondChar == '\\') ) ) // network path + { + // This is a native path + path = ToNewCString(filePath); + pathLen = filePath.Length(); + } + + if (path == nsnull) + return NS_ERROR_FILE_UNRECOGNIZED_PATH; + + // kill any trailing '\' provided it isn't the second char of DBCS + PRInt32 len = pathLen - 1; + if (path[len] == '\\' && + (!::IsDBCSLeadByte(path[len-1]) || + _mbsrchr((const unsigned char *)path, '\\') == (const unsigned char *)path+len)) + { + path[len] = '\0'; + pathLen = len; + } + + mWorkingPath.Adopt(path, pathLen); + return NS_OK; +} + +NS_IMETHODIMP +nsLocalFile::OpenNSPRFileDesc(PRInt32 flags, PRInt32 mode, PRFileDesc **_retval) +{ + nsresult rv = ResolveAndStat(); + if (NS_FAILED(rv) && rv != NS_ERROR_FILE_NOT_FOUND) + return rv; + + *_retval = PR_Open(mResolvedPath.get(), flags, mode); + if (*_retval) + return NS_OK; + + return NS_ErrorAccordingToNSPR(); +} + + +NS_IMETHODIMP +nsLocalFile::OpenANSIFileDesc(const char *mode, FILE * *_retval) +{ + nsresult rv = ResolveAndStat(); + if (NS_FAILED(rv) && rv != NS_ERROR_FILE_NOT_FOUND) + return rv; + + *_retval = fopen(mResolvedPath.get(), mode); + if (*_retval) + return NS_OK; + + return NS_ERROR_FAILURE; +} + + + +NS_IMETHODIMP +nsLocalFile::Create(PRUint32 type, PRUint32 attributes) +{ + if (type != NORMAL_FILE_TYPE && type != DIRECTORY_TYPE) + return NS_ERROR_FILE_UNKNOWN_TYPE; + + nsresult rv = ResolveAndStat(); + if (NS_FAILED(rv) && rv != NS_ERROR_FILE_NOT_FOUND) + return rv; + + // create directories to target + // + // A given local file can be either one of these forms: + // + // - normal: X:\some\path\on\this\drive + // ^--- start here + // + // - UNC path: \\machine\volume\some\path\on\this\drive + // ^--- start here + // + // Skip the first 'X:\' for the first form, and skip the first full + // '\\machine\volume\' segment for the second form. + + const unsigned char* path = (const unsigned char*) mResolvedPath.get(); + if (path[0] == '\\' && path[1] == '\\') + { + // dealing with a UNC path here; skip past '\\machine\' + path = _mbschr(path + 2, '\\'); + if (!path) + return NS_ERROR_FILE_INVALID_PATH; + ++path; + } + + // search for first slash after the drive (or volume) name + unsigned char* slash = _mbschr(path, '\\'); + + if (slash) + { + // skip the first '\\' + ++slash; + slash = _mbschr(slash, '\\'); + + while (slash) + { + *slash = '\0'; + + if (!CreateDirectoryA(mResolvedPath.get(), NULL)) { + rv = ConvertWinError(GetLastError()); + // perhaps the base path already exists, or perhaps we don't have + // permissions to create the directory. NOTE: access denied could + // occur on a parent directory even though it exists. + if (rv != NS_ERROR_FILE_ALREADY_EXISTS && + rv != NS_ERROR_FILE_ACCESS_DENIED) + return rv; + } + *slash = '\\'; + ++slash; + slash = _mbschr(slash, '\\'); + } + } + + if (type == NORMAL_FILE_TYPE) + { + PRFileDesc* file = PR_Open(mResolvedPath.get(), PR_RDONLY | PR_CREATE_FILE | PR_APPEND | PR_EXCL, attributes); + if (!file) return NS_ERROR_FILE_ALREADY_EXISTS; + + PR_Close(file); + return NS_OK; + } + + if (type == DIRECTORY_TYPE) + { + if (!CreateDirectoryA(mResolvedPath.get(), NULL)) + return ConvertWinError(GetLastError()); + else + return NS_OK; + } + + return NS_ERROR_FILE_UNKNOWN_TYPE; +} + +NS_IMETHODIMP +nsLocalFile::AppendNative(const nsACString &node) +{ + // append this path, multiple components are not permitted + return AppendNativeInternal(PromiseFlatCString(node), PR_FALSE); +} + +NS_IMETHODIMP +nsLocalFile::AppendRelativeNativePath(const nsACString &node) +{ + // append this path, multiple components are permitted + return AppendNativeInternal(PromiseFlatCString(node), PR_TRUE); +} + +nsresult +nsLocalFile::AppendNativeInternal(const nsAFlatCString &node, PRBool multipleComponents) +{ + if (node.IsEmpty()) + return NS_OK; + + // check the relative path for validity + const unsigned char * nodePath = (const unsigned char *) node.get(); + if (*nodePath == '\\' // can't start with an '\' + || _mbschr(nodePath, '/') // can't contain / + || node.Equals("..")) // can't be .. + return NS_ERROR_FILE_UNRECOGNIZED_PATH; + + if (multipleComponents) + { + // can't contain .. as a path component. Ensure that the valid components + // "foo..foo", "..foo", and "foo.." are not falsely detected, but the invalid + // paths "..\", "foo\..", "foo\..\foo", "..\foo", etc are. + unsigned char * doubleDot = _mbsstr(nodePath, (unsigned char *)"\\.."); + while (doubleDot) + { + doubleDot += 3; + if (*doubleDot == '\0' || *doubleDot == '\\') + return NS_ERROR_FILE_UNRECOGNIZED_PATH; + doubleDot = _mbsstr(doubleDot, (unsigned char *)"\\.."); + } + if (0 == _mbsncmp(nodePath, (unsigned char *)"..\\", 3)) // catches the remaining cases of prefixes + return NS_ERROR_FILE_UNRECOGNIZED_PATH; + } + else if (_mbschr(nodePath, '\\')) // single components can't contain '\' + return NS_ERROR_FILE_UNRECOGNIZED_PATH; + + MakeDirty(); + + mWorkingPath.Append(NS_LITERAL_CSTRING("\\") + node); + + return NS_OK; +} + +NS_IMETHODIMP +nsLocalFile::Normalize() +{ + // XXX See bug 187957 comment 18 for possible problems with this implementation. + + if (mWorkingPath.IsEmpty()) + return NS_OK; + + // work in unicode for ease + nsAutoString path; + NS_CopyNativeToUnicode(mWorkingPath, path); + + // find the index of the root backslash for the path. Everything before + // this is considered fully normalized and cannot be ascended beyond + // using ".." For a local drive this is the first slash (e.g. "c:\"). + // For a UNC path it is the slash following the share name + // (e.g. "\\server\share\"). + PRInt32 rootIdx = 2; // default to local drive + if (path.First() == '\\') // if a share then calculate the rootIdx + { + rootIdx = path.FindChar('\\', 2); // skip \\ in front of the server + if (rootIdx == kNotFound) + return NS_OK; // already normalized + rootIdx = path.FindChar('\\', rootIdx+1); + if (rootIdx == kNotFound) + return NS_OK; // already normalized + } + else if (path.CharAt(rootIdx) != '\\') + { + // The path has been specified relative to the current working directory + // for that drive. To normalize it, the current working directory for + // that drive needs to be inserted before the supplied relative path + // which will provide an absolute path (and the rootIdx will still be 2). + char cwd[MAX_PATH]; + char * pcwd = cwd; + int drive = toupper(path.First()) - 'A' + 1; + if (!_getdcwd(drive, pcwd, MAX_PATH)) + pcwd = _getdcwd(drive, 0, 0); + if (!pcwd) + return NS_ERROR_OUT_OF_MEMORY; + + nsAutoString currentDir; + NS_CopyNativeToUnicode(nsDependentCString(pcwd), currentDir); + if (pcwd != cwd) + free(pcwd); + + if (currentDir.Last() == '\\') + path.Replace(0, 2, currentDir); + else + path.Replace(0, 2, currentDir + NS_LITERAL_STRING("\\")); + } + NS_POSTCONDITION(0 < rootIdx && rootIdx < (PRInt32)path.Length(), "rootIdx is invalid"); + NS_POSTCONDITION(path.CharAt(rootIdx) == '\\', "rootIdx is invalid"); + + // if there is nothing following the root path then it is already normalized + if (rootIdx + 1 == (PRInt32)path.Length()) + return NS_OK; + + // assign the root + nsAutoString normal; + const PRUnichar * pathBuffer = path.get(); // simplify access to the buffer + normal.SetCapacity(path.Length()); // it won't ever grow longer + normal.Assign(pathBuffer, rootIdx); + + // Normalize the path components. The actions taken are: + // + // "\\" condense to single backslash + // "." remove from path + // ".." up a directory + // "..." remove from path (any number of dots > 2) + // + // The last form is something that Windows 95 and 98 supported and + // is a shortcut for changing up multiple directories. Windows XP + // and ilk ignore it in a path, as is done here. + PRInt32 len, begin, end = rootIdx; + while (end < (PRInt32)path.Length()) + { + // find the current segment (text between the backslashes) to + // be examined, this will set the following variables: + // begin == index of first char in segment + // end == index 1 char after last char in segment + // len == length of segment + begin = end + 1; + end = path.FindChar('\\', begin); + if (end == kNotFound) + end = path.Length(); + len = end - begin; + + // ignore double backslashes + if (len == 0) + continue; + + // len != 0, and interesting paths always begin with a dot + if (pathBuffer[begin] == '.') + { + // ignore single dots + if (len == 1) + continue; + + // handle multiple dots + if (len >= 2 && pathBuffer[begin+1] == '.') + { + // back up a path component on double dot + if (len == 2) + { + PRInt32 prev = normal.RFindChar('\\'); + if (prev >= rootIdx) + normal.Truncate(prev); + continue; + } + + // length is > 2 and the first two characters are dots. + // if the rest of the string is dots, then ignore it. + int idx = len - 1; + for (; idx >= 2; --idx) + { + if (pathBuffer[begin+idx] != '.') + break; + } + + // this is true if the loop above didn't break + // and all characters in this segment are dots. + if (idx < 2) + continue; + } + } + + // add the current component to the path, including the preceding backslash + normal.Append(pathBuffer + begin - 1, len + 1); + } + + NS_CopyUnicodeToNative(normal, mWorkingPath); + MakeDirty(); + + return NS_OK; +} + +NS_IMETHODIMP +nsLocalFile::GetNativeLeafName(nsACString &aLeafName) +{ + aLeafName.Truncate(); + + const char* temp = mWorkingPath.get(); + if(temp == nsnull) + return NS_ERROR_FILE_UNRECOGNIZED_PATH; + + const char* leaf = (const char*) _mbsrchr((const unsigned char*) temp, '\\'); + + // if the working path is just a node without any lashes. + if (leaf == nsnull) + leaf = temp; + else + leaf++; + + aLeafName.Assign(leaf); + return NS_OK; +} + +NS_IMETHODIMP +nsLocalFile::SetNativeLeafName(const nsACString &aLeafName) +{ + MakeDirty(); + + const unsigned char* temp = (const unsigned char*) mWorkingPath.get(); + if(temp == nsnull) + return NS_ERROR_FILE_UNRECOGNIZED_PATH; + + // cannot use nsCString::RFindChar() due to 0x5c problem + PRInt32 offset = (PRInt32) (_mbsrchr(temp, '\\') - temp); + if (offset) + { + mWorkingPath.Truncate(offset+1); + } + mWorkingPath.Append(aLeafName); + + return NS_OK; +} + + +NS_IMETHODIMP +nsLocalFile::GetNativePath(nsACString &_retval) +{ + _retval = mWorkingPath; + return NS_OK; +} + +nsresult +nsLocalFile::CopySingleFile(nsIFile *sourceFile, nsIFile *destParent, const nsACString &newName, + PRBool followSymlinks, PRBool move) +{ + nsresult rv; + nsCAutoString filePath; + + // get the path that we are going to copy to. + // Since windows does not know how to auto + // resolve shortcuts, we must work with the + // target. + nsCAutoString destPath; + destParent->GetNativeTarget(destPath); + + destPath.Append("\\"); + + if (newName.IsEmpty()) + { + nsCAutoString aFileName; + sourceFile->GetNativeLeafName(aFileName); + destPath.Append(aFileName); + } + else + { + destPath.Append(newName); + } + + + if (followSymlinks) + { + rv = sourceFile->GetNativeTarget(filePath); + if (filePath.IsEmpty()) + rv = sourceFile->GetNativePath(filePath); + } + else + { + rv = sourceFile->GetNativePath(filePath); + } + + if (NS_FAILED(rv)) + return rv; + + int copyOK; + + if (!move) + copyOK = CopyFile(filePath.get(), destPath.get(), PR_TRUE); + else + { + // What we have to do is check to see if the destPath exists. If it + // does, we have to move it out of the say so that MoveFile will + // succeed. However, we don't want to just remove it since MoveFile + // can fail leaving us without a file. + + nsCAutoString backup; + PRFileInfo64 fileInfo64; + PRStatus status = PR_GetFileInfo64(destPath.get(), &fileInfo64); + if (status == PR_SUCCESS) + { + + // the file exists. Check to make sure it is not a directory, + // then move it out of the way. + if (fileInfo64.type == PR_FILE_FILE) + { + backup.Append(destPath); + backup.Append(".moztmp"); + + // remove any existing backup file that we may already have. + // maybe we should be doing some kind of unique naming here, + // but why bother. + remove(backup.get()); + + // move destination file to backup file + copyOK = MoveFile(destPath.get(), backup.get()); + if (!copyOK) + { + // I guess we can't do the backup copy, so return. + rv = ConvertWinError(GetLastError()); + return rv; + } + } + } + // move source file to destination file + copyOK = MoveFile(filePath.get(), destPath.get()); + + if (!backup.IsEmpty()) + { + if (copyOK) + { + // remove the backup copy. + remove(backup.get()); + } + else + { + // restore backup + int backupOk = MoveFile(backup.get(), destPath.get()); + NS_ASSERTION(backupOk, "move backup failed"); + } + } + } + if (!copyOK) // CopyFile and MoveFile returns non-zero if succeeds (backward if you ask me). + rv = ConvertWinError(GetLastError()); + + return rv; +} + + +nsresult +nsLocalFile::CopyMove(nsIFile *aParentDir, const nsACString &newName, PRBool followSymlinks, PRBool move) +{ + nsCOMPtr<nsIFile> newParentDir = aParentDir; + // check to see if this exists, otherwise return an error. + // we will check this by resolving. If the user wants us + // to follow links, then we are talking about the target, + // hence we can use the |followSymlinks| parameter. + nsresult rv = ResolveAndStat(); + if (NS_FAILED(rv)) + return rv; + + if (!newParentDir) + { + // no parent was specified. We must rename. + + if (newName.IsEmpty()) + return NS_ERROR_INVALID_ARG; + + rv = GetParent(getter_AddRefs(newParentDir)); + if (NS_FAILED(rv)) + return rv; + } + + if (!newParentDir) + return NS_ERROR_FILE_DESTINATION_NOT_DIR; + + // make sure it exists and is a directory. Create it if not there. + PRBool exists; + newParentDir->Exists(&exists); + if (!exists) + { + rv = newParentDir->Create(DIRECTORY_TYPE, 0644); // TODO, what permissions should we use + if (NS_FAILED(rv)) + return rv; + } + else + { + PRBool isDir; + newParentDir->IsDirectory(&isDir); + if (isDir == PR_FALSE) + { + if (followSymlinks) + { + PRBool isLink; + newParentDir->IsSymlink(&isLink); + if (isLink) + { + nsCAutoString target; + newParentDir->GetNativeTarget(target); + + nsCOMPtr<nsILocalFile> realDest = new nsLocalFile(); + if (realDest == nsnull) + return NS_ERROR_OUT_OF_MEMORY; + + rv = realDest->InitWithNativePath(target); + + if (NS_FAILED(rv)) + return rv; + + return CopyMove(realDest, newName, followSymlinks, move); + } + } + else + { + return NS_ERROR_FILE_DESTINATION_NOT_DIR; + } + } + } + + // check to see if we are a directory, if so enumerate it. + + PRBool isDir; + IsDirectory(&isDir); + PRBool isSymlink; + IsSymlink(&isSymlink); + + if (!isDir || (isSymlink && !followSymlinks)) + { + rv = CopySingleFile(this, newParentDir, newName, followSymlinks, move); + if (NS_FAILED(rv)) + return rv; + } + else + { + // create a new target destination in the new parentDir; + nsCOMPtr<nsIFile> target; + rv = newParentDir->Clone(getter_AddRefs(target)); + + if (NS_FAILED(rv)) + return rv; + + nsCAutoString allocatedNewName; + if (newName.IsEmpty()) + { + PRBool isLink; + IsSymlink(&isLink); + if (isLink) + { + nsCAutoString temp; + GetNativeTarget(temp); + const char* leaf = (const char*) _mbsrchr((const unsigned char*) temp.get(), '\\'); + if (leaf[0] == '\\') + leaf++; + allocatedNewName = leaf; + } + else + { + GetNativeLeafName(allocatedNewName);// this should be the leaf name of the + } + } + else + { + allocatedNewName = newName; + } + + rv = target->AppendNative(allocatedNewName); + if (NS_FAILED(rv)) + return rv; + + allocatedNewName.Truncate(); + + // check if the destination directory already exists + target->Exists(&exists); + if (!exists) + { + // if the destination directory cannot be created, return an error + rv = target->Create(DIRECTORY_TYPE, 0644); // TODO, what permissions should we use + if (NS_FAILED(rv)) + return rv; + } + else + { + // check if the destination directory is writable and empty + PRBool isWritable; + + target->IsWritable(&isWritable); + if (!isWritable) + return NS_ERROR_FILE_ACCESS_DENIED; + + nsCOMPtr<nsISimpleEnumerator> targetIterator; + rv = target->GetDirectoryEntries(getter_AddRefs(targetIterator)); + + PRBool more; + targetIterator->HasMoreElements(&more); + // return error if target directory is not empty + if (more) + return NS_ERROR_FILE_DIR_NOT_EMPTY; + } + + nsDirEnumerator dirEnum; + + rv = dirEnum.Init(this); + if (NS_FAILED(rv)) { + NS_WARNING("dirEnum initalization failed"); + return rv; + } + + PRBool more; + while (NS_SUCCEEDED(dirEnum.HasMoreElements(&more)) && more) + { + nsCOMPtr<nsISupports> item; + nsCOMPtr<nsIFile> file; + dirEnum.GetNext(getter_AddRefs(item)); + file = do_QueryInterface(item); + if (file) + { + PRBool isDir, isLink; + + file->IsDirectory(&isDir); + file->IsSymlink(&isLink); + + if (move) + { + if (followSymlinks) + return NS_ERROR_FAILURE; + + rv = file->MoveToNative(target, nsCString()); + NS_ENSURE_SUCCESS(rv,rv); + } + else + { + if (followSymlinks) + rv = file->CopyToFollowingLinksNative(target, nsCString()); + else + rv = file->CopyToNative(target, nsCString()); + NS_ENSURE_SUCCESS(rv,rv); + } + } + } + // we've finished moving all the children of this directory + // in the new directory. so now delete the directory + // note, we don't need to do a recursive delete. + // MoveTo() is recursive. At this point, + // we've already moved the children of the current folder + // to the new location. nothing should be left in the folder. + if (move) + { + rv = Remove(PR_FALSE /* recursive */); + NS_ENSURE_SUCCESS(rv,rv); + } + } + + + // If we moved, we want to adjust this. + if (move) + { + MakeDirty(); + + nsCAutoString newParentPath; + newParentDir->GetNativePath(newParentPath); + + if (newParentPath.IsEmpty()) + return NS_ERROR_FAILURE; + + if (newName.IsEmpty()) + { + nsCAutoString aFileName; + GetNativeLeafName(aFileName); + + InitWithNativePath(newParentPath); + AppendNative(aFileName); + } + else + { + InitWithNativePath(newParentPath); + AppendNative(newName); + } + } + + return NS_OK; +} + +NS_IMETHODIMP +nsLocalFile::CopyToNative(nsIFile *newParentDir, const nsACString &newName) +{ + return CopyMove(newParentDir, newName, PR_FALSE, PR_FALSE); +} + +NS_IMETHODIMP +nsLocalFile::CopyToFollowingLinksNative(nsIFile *newParentDir, const nsACString &newName) +{ + return CopyMove(newParentDir, newName, PR_TRUE, PR_FALSE); +} + +NS_IMETHODIMP +nsLocalFile::MoveToNative(nsIFile *newParentDir, const nsACString &newName) +{ + return CopyMove(newParentDir, newName, PR_FALSE, PR_TRUE); +} + +NS_IMETHODIMP +nsLocalFile::Load(PRLibrary * *_retval) +{ + PRBool isFile; + nsresult rv = IsFile(&isFile); + + if (NS_FAILED(rv)) + return rv; + + if (! isFile) + return NS_ERROR_FILE_IS_DIRECTORY; + + NS_TIMELINE_START_TIMER("PR_LoadLibrary"); + *_retval = PR_LoadLibrary(mResolvedPath.get()); + NS_TIMELINE_STOP_TIMER("PR_LoadLibrary"); + NS_TIMELINE_MARK_TIMER1("PR_LoadLibrary", mResolvedPath.get()); + + if (*_retval) + return NS_OK; + + return NS_ERROR_NULL_POINTER; +} + +NS_IMETHODIMP +nsLocalFile::Remove(PRBool recursive) +{ + // NOTE: + // + // if the working path points to a shortcut, then we will only + // delete the shortcut itself. even if the shortcut points to + // a directory, we will not recurse into that directory or + // delete that directory itself. likewise, if the shortcut + // points to a normal file, we will not delete the real file. + // this is done to be consistent with the other platforms that + // behave this way. we do this even if the followLinks attribute + // is set to true. this helps protect against misuse that could + // lead to security bugs (e.g., bug 210588). + // + // Since shortcut files are no longer permitted to be used as unix-like + // symlinks interspersed in the path (e.g. "c:/file.lnk/foo/bar.txt") + // this processing is a lot simpler. Even if the shortcut file is + // pointing to a directory, only the mWorkingPath value is used and so + // only the shortcut file will be deleted. + + PRBool isDir, isLink; + nsresult rv; + + isDir = PR_FALSE; + rv = IsSymlink(&isLink); + if (NS_FAILED(rv)) + return rv; + + // only check to see if we have a directory if it isn't a link + if (!isLink) + { + rv = IsDirectory(&isDir); + if (NS_FAILED(rv)) + return rv; + } + + if (isDir) + { + if (recursive) + { + nsDirEnumerator dirEnum; + + rv = dirEnum.Init(this); + if (NS_FAILED(rv)) + return rv; + + PRBool more; + while (NS_SUCCEEDED(dirEnum.HasMoreElements(&more)) && more) + { + nsCOMPtr<nsISupports> item; + dirEnum.GetNext(getter_AddRefs(item)); + nsCOMPtr<nsIFile> file = do_QueryInterface(item); + if (file) + file->Remove(recursive); + } + } + rv = rmdir(mWorkingPath.get()); + } + else + { + rv = remove(mWorkingPath.get()); + } + + // fixup error code if necessary... + if (rv == (nsresult)-1) + rv = NSRESULT_FOR_ERRNO(); + + MakeDirty(); + return rv; +} + +NS_IMETHODIMP +nsLocalFile::GetLastModifiedTime(PRInt64 *aLastModifiedTime) +{ + NS_ENSURE_ARG(aLastModifiedTime); + + // get the modified time of the target as determined by mFollowSymlinks + // If PR_TRUE, then this will be for the target of the shortcut file, + // otherwise it will be for the shortcut file itself (i.e. the same + // results as GetLastModifiedTimeOfLink) + + nsresult rv = ResolveAndStat(); + if (NS_FAILED(rv)) + return rv; + + // microseconds -> milliseconds + PRInt64 usecPerMsec; + LL_I2L(usecPerMsec, PR_USEC_PER_MSEC); + LL_DIV(*aLastModifiedTime, mFileInfo64.modifyTime, usecPerMsec); + return NS_OK; +} + + +NS_IMETHODIMP +nsLocalFile::GetLastModifiedTimeOfLink(PRInt64 *aLastModifiedTime) +{ + NS_ENSURE_ARG(aLastModifiedTime); + + // The caller is assumed to have already called IsSymlink + // and to have found that this file is a link. + + PRFileInfo64 info; + if (PR_GetFileInfo64(mWorkingPath.get(), &info) != PR_SUCCESS) + return NSRESULT_FOR_ERRNO(); + + // microseconds -> milliseconds + PRInt64 usecPerMsec; + LL_I2L(usecPerMsec, PR_USEC_PER_MSEC); + LL_DIV(*aLastModifiedTime, info.modifyTime, usecPerMsec); + return NS_OK; +} + + +NS_IMETHODIMP +nsLocalFile::SetLastModifiedTime(PRInt64 aLastModifiedTime) +{ + nsresult rv = ResolveAndStat(); + if (NS_FAILED(rv)) + return rv; + + // set the modified time of the target as determined by mFollowSymlinks + // If PR_TRUE, then this will be for the target of the shortcut file, + // otherwise it will be for the shortcut file itself (i.e. the same + // results as SetLastModifiedTimeOfLink) + + rv = SetModDate(aLastModifiedTime, mResolvedPath.get()); + if (NS_SUCCEEDED(rv)) + MakeDirty(); + + return rv; +} + + +NS_IMETHODIMP +nsLocalFile::SetLastModifiedTimeOfLink(PRInt64 aLastModifiedTime) +{ + // The caller is assumed to have already called IsSymlink + // and to have found that this file is a link. + + nsresult rv = SetModDate(aLastModifiedTime, mWorkingPath.get()); + if (NS_SUCCEEDED(rv)) + MakeDirty(); + + return rv; +} + +nsresult +nsLocalFile::SetModDate(PRInt64 aLastModifiedTime, const char *filePath) +{ + HANDLE file = CreateFile(filePath, // pointer to name of the file + GENERIC_WRITE, // access (write) mode + 0, // share mode + NULL, // pointer to security attributes + OPEN_EXISTING, // how to create + 0, // file attributes + NULL); + if (file == INVALID_HANDLE_VALUE) + { + return ConvertWinError(GetLastError()); + } + + FILETIME lft, ft; + SYSTEMTIME st; + PRExplodedTime pret; + + // PR_ExplodeTime expects usecs... + PR_ExplodeTime(aLastModifiedTime * PR_USEC_PER_MSEC, PR_LocalTimeParameters, &pret); + st.wYear = pret.tm_year; + st.wMonth = pret.tm_month + 1; // Convert start offset -- Win32: Jan=1; NSPR: Jan=0 + st.wDayOfWeek = pret.tm_wday; + st.wDay = pret.tm_mday; + st.wHour = pret.tm_hour; + st.wMinute = pret.tm_min; + st.wSecond = pret.tm_sec; + st.wMilliseconds = pret.tm_usec/1000; + + nsresult rv = NS_OK; + if ( 0 != SystemTimeToFileTime(&st, &lft) + || 0 != LocalFileTimeToFileTime(&lft, &ft) + || 0 != SetFileTime(file, NULL, &ft, &ft) ) + { + rv = ConvertWinError(GetLastError()); + } + + CloseHandle(file); + return rv; +} + +NS_IMETHODIMP +nsLocalFile::GetPermissions(PRUint32 *aPermissions) +{ + NS_ENSURE_ARG(aPermissions); + + // get the permissions of the target as determined by mFollowSymlinks + // If PR_TRUE, then this will be for the target of the shortcut file, + // otherwise it will be for the shortcut file itself (i.e. the same + // results as GetPermissionsOfLink) + nsresult rv = ResolveAndStat(); + if (NS_FAILED(rv)) + return rv; + + PRBool isWritable, isExecutable; + IsWritable(&isWritable); + IsExecutable(&isExecutable); + + *aPermissions = PR_IRUSR|PR_IRGRP|PR_IROTH; // all read + if (isWritable) + *aPermissions |= PR_IWUSR|PR_IWGRP|PR_IWOTH; // all write + if (isExecutable) + *aPermissions |= PR_IXUSR|PR_IXGRP|PR_IXOTH; // all execute + + return NS_OK; +} + +NS_IMETHODIMP +nsLocalFile::GetPermissionsOfLink(PRUint32 *aPermissions) +{ + NS_ENSURE_ARG(aPermissions); + + // The caller is assumed to have already called IsSymlink + // and to have found that this file is a link. It is not + // possible for a link file to be executable. + + DWORD word = GetFileAttributes(mWorkingPath.get()); + if (word == INVALID_FILE_ATTRIBUTES) + return NS_ERROR_FILE_INVALID_PATH; + + PRBool isWritable = !(word & FILE_ATTRIBUTE_READONLY); + *aPermissions = PR_IRUSR|PR_IRGRP|PR_IROTH; // all read + if (isWritable) + *aPermissions |= PR_IWUSR|PR_IWGRP|PR_IWOTH; // all write + + return NS_OK; +} + + +NS_IMETHODIMP +nsLocalFile::SetPermissions(PRUint32 aPermissions) +{ + // set the permissions of the target as determined by mFollowSymlinks + // If PR_TRUE, then this will be for the target of the shortcut file, + // otherwise it will be for the shortcut file itself (i.e. the same + // results as SetPermissionsOfLink) + nsresult rv = ResolveAndStat(); + if (NS_FAILED(rv)) + return rv; + + // windows only knows about the following permissions + int mode = 0; + if (aPermissions & (PR_IRUSR|PR_IRGRP|PR_IROTH)) // any read + mode |= _S_IREAD; + if (aPermissions & (PR_IWUSR|PR_IWGRP|PR_IWOTH)) // any write + mode |= _S_IWRITE; + + if (chmod(mResolvedPath.get(), mode) == -1) + return NS_ERROR_FAILURE; + + return NS_OK; +} + +NS_IMETHODIMP +nsLocalFile::SetPermissionsOfLink(PRUint32 aPermissions) +{ + // The caller is assumed to have already called IsSymlink + // and to have found that this file is a link. + + // windows only knows about the following permissions + int mode = 0; + if (aPermissions & (PR_IRUSR|PR_IRGRP|PR_IROTH)) // any read + mode |= _S_IREAD; + if (aPermissions & (PR_IWUSR|PR_IWGRP|PR_IWOTH)) // any write + mode |= _S_IWRITE; + + if (chmod(mWorkingPath.get(), mode) == -1) + return NS_ERROR_FAILURE; + + return NS_OK; +} + + +NS_IMETHODIMP +nsLocalFile::GetFileSize(PRInt64 *aFileSize) +{ + NS_ENSURE_ARG(aFileSize); + + nsresult rv = ResolveAndStat(); + if (NS_FAILED(rv)) + return rv; + + *aFileSize = mFileInfo64.size; + return NS_OK; +} + + +NS_IMETHODIMP +nsLocalFile::GetFileSizeOfLink(PRInt64 *aFileSize) +{ + NS_ENSURE_ARG(aFileSize); + + // The caller is assumed to have already called IsSymlink + // and to have found that this file is a link. + + PRFileInfo64 info; + if (!PR_GetFileInfo64(mWorkingPath.get(), &info)) + return NS_ERROR_FILE_INVALID_PATH; + + *aFileSize = info.size; + return NS_OK; +} + +NS_IMETHODIMP +nsLocalFile::SetFileSize(PRInt64 aFileSize) +{ + nsresult rv = ResolveAndStat(); + if (NS_FAILED(rv)) + return rv; + + HANDLE hFile = CreateFile(mResolvedPath.get(), // pointer to name of the file + GENERIC_WRITE, // access (write) mode + FILE_SHARE_READ, // share mode + NULL, // pointer to security attributes + OPEN_EXISTING, // how to create + FILE_ATTRIBUTE_NORMAL, // file attributes + NULL); + if (hFile == INVALID_HANDLE_VALUE) + { + return ConvertWinError(GetLastError()); + } + + // seek the file pointer to the new, desired end of file + // and then truncate the file at that position + rv = NS_ERROR_FAILURE; + aFileSize = MyFileSeek64(hFile, aFileSize, FILE_BEGIN); + if (aFileSize != -1 && SetEndOfFile(hFile)) + { + MakeDirty(); + rv = NS_OK; + } + + CloseHandle(hFile); + return rv; +} + +typedef BOOL (WINAPI *fpGetDiskFreeSpaceExA)(LPCTSTR lpDirectoryName, + PULARGE_INTEGER lpFreeBytesAvailableToCaller, + PULARGE_INTEGER lpTotalNumberOfBytes, + PULARGE_INTEGER lpTotalNumberOfFreeBytes); + +NS_IMETHODIMP +nsLocalFile::GetDiskSpaceAvailable(PRInt64 *aDiskSpaceAvailable) +{ + NS_ENSURE_ARG(aDiskSpaceAvailable); + + ResolveAndStat(); + + // Attempt to check disk space using the GetDiskFreeSpaceExA function. + // --- FROM MSDN --- + // The GetDiskFreeSpaceEx function is available beginning with Windows 95 OEM Service + // Release 2 (OSR2). To determine whether GetDiskFreeSpaceEx is available, call + // GetModuleHandle to get the handle to Kernel32.dll. Then you can call GetProcAddress. + // It is not necessary to call LoadLibrary on Kernel32.dll because it is already loaded + // into every process address space. + fpGetDiskFreeSpaceExA pGetDiskFreeSpaceExA = (fpGetDiskFreeSpaceExA) + GetProcAddress(GetModuleHandle("kernel32.dll"), "GetDiskFreeSpaceExA"); + if (pGetDiskFreeSpaceExA) + { + ULARGE_INTEGER liFreeBytesAvailableToCaller, liTotalNumberOfBytes; + if (pGetDiskFreeSpaceExA(mResolvedPath.get(), &liFreeBytesAvailableToCaller, + &liTotalNumberOfBytes, NULL)) + { + *aDiskSpaceAvailable = liFreeBytesAvailableToCaller.QuadPart; + return NS_OK; + } + } + + // use the old method of getting available disk space + char aDrive[_MAX_DRIVE + 2]; + _splitpath( mResolvedPath.get(), aDrive, NULL, NULL, NULL); + strcat(aDrive, "\\"); + + DWORD dwSecPerClus, dwBytesPerSec, dwFreeClus, dwTotalClus; + if (GetDiskFreeSpace(aDrive, &dwSecPerClus, &dwBytesPerSec, &dwFreeClus, &dwTotalClus)) + { + __int64 bytes = dwFreeClus; + bytes *= dwSecPerClus; + bytes *= dwBytesPerSec; + + *aDiskSpaceAvailable = bytes; + return NS_OK; + } + + return NS_ERROR_FAILURE; +} + +NS_IMETHODIMP +nsLocalFile::GetParent(nsIFile * *aParent) +{ + NS_ENSURE_ARG_POINTER(aParent); + + nsCAutoString parentPath(mWorkingPath); + + // cannot use nsCString::RFindChar() due to 0x5c problem + PRInt32 offset = (PRInt32) (_mbsrchr((const unsigned char *) parentPath.get(), '\\') + - (const unsigned char *) parentPath.get()); + // adding this offset check that was removed in bug 241708 fixes mail + // directories that aren't relative to/underneath the profile dir. + // e.g., on a different drive. Before you remove them, please make + // sure local mail directories that aren't underneath the profile dir work. + if (offset < 0) + return NS_ERROR_FILE_UNRECOGNIZED_PATH; + + if (offset == 1 && parentPath[0] == '\\') { + aParent = nsnull; + return NS_OK; + } + if (offset > 0) + parentPath.Truncate(offset); + else + parentPath.AssignLiteral("\\\\."); + + nsCOMPtr<nsILocalFile> localFile; + nsresult rv = NS_NewNativeLocalFile(parentPath, mFollowSymlinks, getter_AddRefs(localFile)); + + if(NS_SUCCEEDED(rv) && localFile) + { + return CallQueryInterface(localFile, aParent); + } + return rv; +} + +NS_IMETHODIMP +nsLocalFile::Exists(PRBool *_retval) +{ + NS_ENSURE_ARG(_retval); + *_retval = PR_FALSE; + + MakeDirty(); + nsresult rv = ResolveAndStat(); + *_retval = NS_SUCCEEDED(rv); + + return NS_OK; +} + +NS_IMETHODIMP +nsLocalFile::IsWritable(PRBool *aIsWritable) +{ + //TODO: extend to support NTFS file permissions + + // The read-only attribute on a FAT directory only means that it can't + // be deleted. It is still possible to modify the contents of the directory. + nsresult rv = IsDirectory(aIsWritable); + if (NS_FAILED(rv)) + return rv; + if (*aIsWritable) + return NS_OK; + + // writable if the file doesn't have the readonly attribute + rv = HasFileAttribute(FILE_ATTRIBUTE_READONLY, aIsWritable); + if (NS_FAILED(rv)) + return rv; + *aIsWritable = !*aIsWritable; + + return NS_OK; +} + +NS_IMETHODIMP +nsLocalFile::IsReadable(PRBool *_retval) +{ + NS_ENSURE_ARG(_retval); + *_retval = PR_FALSE; + + nsresult rv = ResolveAndStat(); + if (NS_FAILED(rv)) + return rv; + + *_retval = PR_TRUE; + return NS_OK; +} + + +NS_IMETHODIMP +nsLocalFile::IsExecutable(PRBool *_retval) +{ + NS_ENSURE_ARG(_retval); + *_retval = PR_FALSE; + + nsresult rv; + + // only files can be executables + PRBool isFile; + rv = IsFile(&isFile); + if (NS_FAILED(rv)) + return rv; + if (!isFile) + return NS_OK; + + //TODO: shouldn't we be checking mFollowSymlinks here? + PRBool symLink; + rv = IsSymlink(&symLink); + if (NS_FAILED(rv)) + return rv; + + nsCAutoString path; + if (symLink) + GetNativeTarget(path); + else + GetNativePath(path); + + // Get extension. + char * ext = (char *) _mbsrchr((unsigned char *)path.BeginWriting(), '.'); + if ( ext ) { + // Convert extension to lower case. + for( unsigned char *p = (unsigned char *)ext; *p; p++ ) + *p = _mbctolower( *p ); + + // Search for any of the set of executable extensions. + const char * const executableExts[] = { + ".ad", + ".adp", + ".asp", + ".bas", + ".bat", + ".chm", + ".cmd", + ".com", + ".cpl", + ".crt", + ".exe", + ".hlp", + ".hta", + ".inf", + ".ins", + ".isp", + ".js", + ".jse", + ".lnk", + ".mdb", + ".mde", + ".msc", + ".msi", + ".msp", + ".mst", + ".pcd", + ".pif", + ".reg", + ".scr", + ".sct", + ".shb", + ".shs", + ".url", + ".vb", + ".vbe", + ".vbs", + ".vsd", + ".vss", + ".vst", + ".vsw", + ".ws", + ".wsc", + ".wsf", + ".wsh", + 0 }; + for ( int i = 0; executableExts[i]; i++ ) { + if ( ::strcmp( executableExts[i], ext ) == 0 ) { + // Found a match. Set result and quit. + *_retval = PR_TRUE; + break; + } + } + } + + return NS_OK; +} + + +NS_IMETHODIMP +nsLocalFile::IsDirectory(PRBool *_retval) +{ + NS_ENSURE_ARG(_retval); + + nsresult rv = ResolveAndStat(); + if (NS_FAILED(rv)) + return rv; + + *_retval = (mFileInfo64.type == PR_FILE_DIRECTORY); + return NS_OK; +} + +NS_IMETHODIMP +nsLocalFile::IsFile(PRBool *_retval) +{ + NS_ENSURE_ARG(_retval); + + nsresult rv = ResolveAndStat(); + if (NS_FAILED(rv)) + return rv; + + *_retval = (mFileInfo64.type == PR_FILE_FILE); + return NS_OK; +} + +NS_IMETHODIMP +nsLocalFile::IsHidden(PRBool *_retval) +{ + return HasFileAttribute(FILE_ATTRIBUTE_HIDDEN, _retval); +} + +nsresult +nsLocalFile::HasFileAttribute(DWORD fileAttrib, PRBool *_retval) +{ + NS_ENSURE_ARG(_retval); + + nsresult rv = ResolveAndStat(); + if (NS_FAILED(rv)) + return rv; + + // get the file attributes for the correct item depending on following symlinks + const char *filePath = mFollowSymlinks ? mResolvedPath.get() : mWorkingPath.get(); + DWORD word = GetFileAttributes(filePath); + + *_retval = ((word & fileAttrib) != 0); + return NS_OK; +} + +NS_IMETHODIMP +nsLocalFile::IsSymlink(PRBool *_retval) +{ + NS_ENSURE_ARG(_retval); + + // unless it is a valid shortcut path it's not a symlink + if (!IsShortcutPath(mWorkingPath.get())) + { + *_retval = PR_FALSE; + return NS_OK; + } + + // we need to know if this is a file or directory + nsresult rv = ResolveAndStat(); + if (NS_FAILED(rv)) + return rv; + + // it's only a shortcut if it is a file + *_retval = (mFileInfo64.type == PR_FILE_FILE); + return NS_OK; +} + +NS_IMETHODIMP +nsLocalFile::IsSpecial(PRBool *_retval) +{ + return HasFileAttribute(FILE_ATTRIBUTE_SYSTEM, _retval); +} + +NS_IMETHODIMP +nsLocalFile::Equals(nsIFile *inFile, PRBool *_retval) +{ + NS_ENSURE_ARG(inFile); + NS_ENSURE_ARG(_retval); + + nsCAutoString inFilePath; + inFile->GetNativePath(inFilePath); + + *_retval = inFilePath.Equals(mWorkingPath); + return NS_OK; +} + +NS_IMETHODIMP +nsLocalFile::Contains(nsIFile *inFile, PRBool recur, PRBool *_retval) +{ + *_retval = PR_FALSE; + + nsCAutoString myFilePath; + if ( NS_FAILED(GetNativeTarget(myFilePath))) + GetNativePath(myFilePath); + + PRInt32 myFilePathLen = myFilePath.Length(); + + nsCAutoString inFilePath; + if ( NS_FAILED(inFile->GetNativeTarget(inFilePath))) + inFile->GetNativePath(inFilePath); + + if ( strnicmp( myFilePath.get(), inFilePath.get(), myFilePathLen) == 0) + { + // now make sure that the |inFile|'s path has a trailing + // separator. + + if (inFilePath[myFilePathLen] == '\\') + { + *_retval = PR_TRUE; + } + + } + + return NS_OK; +} + + + +NS_IMETHODIMP +nsLocalFile::GetNativeTarget(nsACString &_retval) +{ + _retval.Truncate(); +#if STRICT_FAKE_SYMLINKS + PRBool symLink; + + nsresult rv = IsSymlink(&symLink); + if (NS_FAILED(rv)) + return rv; + + if (!symLink) + { + return NS_ERROR_FILE_INVALID_PATH; + } +#endif + ResolveAndStat(); + + _retval = mResolvedPath; + return NS_OK; +} + + +/* attribute PRBool followLinks; */ +NS_IMETHODIMP +nsLocalFile::GetFollowLinks(PRBool *aFollowLinks) +{ + *aFollowLinks = mFollowSymlinks; + return NS_OK; +} +NS_IMETHODIMP +nsLocalFile::SetFollowLinks(PRBool aFollowLinks) +{ + MakeDirty(); + mFollowSymlinks = aFollowLinks; + return NS_OK; +} + + +NS_IMETHODIMP +nsLocalFile::GetDirectoryEntries(nsISimpleEnumerator * *entries) +{ + nsresult rv; + + *entries = nsnull; + if (mWorkingPath.EqualsLiteral("\\\\.")) { + nsDriveEnumerator *drives = new nsDriveEnumerator; + if (!drives) + return NS_ERROR_OUT_OF_MEMORY; + NS_ADDREF(drives); + rv = drives->Init(); + if (NS_FAILED(rv)) { + NS_RELEASE(drives); + return rv; + } + *entries = drives; + return NS_OK; + } + + PRBool isDir; + rv = IsDirectory(&isDir); + if (NS_FAILED(rv)) + return rv; + if (!isDir) + return NS_ERROR_FILE_NOT_DIRECTORY; + + nsDirEnumerator* dirEnum = new nsDirEnumerator(); + if (dirEnum == nsnull) + return NS_ERROR_OUT_OF_MEMORY; + NS_ADDREF(dirEnum); + rv = dirEnum->Init(this); + if (NS_FAILED(rv)) + { + NS_RELEASE(dirEnum); + return rv; + } + + *entries = dirEnum; + return NS_OK; +} + +NS_IMETHODIMP +nsLocalFile::GetPersistentDescriptor(nsACString &aPersistentDescriptor) +{ + return GetNativePath(aPersistentDescriptor); +} + +NS_IMETHODIMP +nsLocalFile::SetPersistentDescriptor(const nsACString &aPersistentDescriptor) +{ + return InitWithNativePath(aPersistentDescriptor); +} + +NS_IMETHODIMP +nsLocalFile::Reveal() +{ + // make sure mResolvedPath is set + nsresult rv = ResolveAndStat(); + if (NS_FAILED(rv) && rv != NS_ERROR_FILE_NOT_FOUND) + return rv; + + // use the full path to explorer for security + nsCOMPtr<nsILocalFile> winDir; + rv = GetSpecialSystemDirectory(Win_WindowsDirectory, getter_AddRefs(winDir)); + NS_ENSURE_SUCCESS(rv, rv); + nsCAutoString explorerPath; + rv = winDir->GetNativePath(explorerPath); + NS_ENSURE_SUCCESS(rv, rv); + explorerPath.Append("\\explorer.exe"); + + // Always open a new window for files because Win2K doesn't appear to select + // the file if a window showing that folder was already open. If the resolved + // path is a directory then instead of opening the parent and selecting it, + // we open the directory itself. + nsCAutoString explorerParams; + if (mFileInfo64.type != PR_FILE_DIRECTORY) // valid because we ResolveAndStat above + explorerParams.Append("/n,/select,"); + explorerParams.Append('\"'); + explorerParams.Append(mResolvedPath); + explorerParams.Append('\"'); + + if (::ShellExecute(NULL, "open", explorerPath.get(), explorerParams.get(), + NULL, SW_SHOWNORMAL) <= (HINSTANCE) 32) + return NS_ERROR_FAILURE; + + return NS_OK; +} + + +NS_IMETHODIMP +nsLocalFile::Launch() +{ + const nsCString &path = mWorkingPath; + + // use the app registry name to launch a shell execute.... + LONG r = (LONG) ::ShellExecute( NULL, NULL, path.get(), NULL, NULL, SW_SHOWNORMAL); + + // if the file has no association, we launch windows' "what do you want to do" dialog + if (r == SE_ERR_NOASSOC) { + nsCAutoString shellArg; + shellArg.Assign(NS_LITERAL_CSTRING("shell32.dll,OpenAs_RunDLL ") + path); + r = (LONG) ::ShellExecute(NULL, NULL, "RUNDLL32.EXE", shellArg.get(), + NULL, SW_SHOWNORMAL); + } + if (r < 32) { + switch (r) { + case 0: + case SE_ERR_OOM: + return NS_ERROR_OUT_OF_MEMORY; + case ERROR_FILE_NOT_FOUND: + return NS_ERROR_FILE_NOT_FOUND; + case ERROR_PATH_NOT_FOUND: + return NS_ERROR_FILE_UNRECOGNIZED_PATH; + case ERROR_BAD_FORMAT: + return NS_ERROR_FILE_CORRUPTED; + case SE_ERR_ACCESSDENIED: + return NS_ERROR_FILE_ACCESS_DENIED; + case SE_ERR_ASSOCINCOMPLETE: + case SE_ERR_NOASSOC: + return NS_ERROR_UNEXPECTED; + case SE_ERR_DDEBUSY: + case SE_ERR_DDEFAIL: + case SE_ERR_DDETIMEOUT: + return NS_ERROR_NOT_AVAILABLE; + case SE_ERR_DLLNOTFOUND: + return NS_ERROR_FAILURE; + case SE_ERR_SHARE: + return NS_ERROR_FILE_IS_LOCKED; + default: + return NS_ERROR_FILE_EXECUTION_FAILED; + } + } + return NS_OK; +} + +nsresult +NS_NewNativeLocalFile(const nsACString &path, PRBool followLinks, nsILocalFile* *result) +{ + nsLocalFile* file = new nsLocalFile(); + if (file == nsnull) + return NS_ERROR_OUT_OF_MEMORY; + NS_ADDREF(file); + + file->SetFollowLinks(followLinks); + + if (!path.IsEmpty()) { + nsresult rv = file->InitWithNativePath(path); + if (NS_FAILED(rv)) { + NS_RELEASE(file); + return rv; + } + } + + *result = file; + return NS_OK; +} + +//----------------------------------------------------------------------------- +// UCS2 interface +//----------------------------------------------------------------------------- + +nsresult +nsLocalFile::InitWithPath(const nsAString &filePath) +{ + nsCAutoString tmp; + nsresult rv = NS_CopyUnicodeToNative(filePath, tmp); + if (NS_SUCCEEDED(rv)) + return InitWithNativePath(tmp); + + return rv; +} + +nsresult +nsLocalFile::Append(const nsAString &node) +{ + nsCAutoString tmp; + nsresult rv = NS_CopyUnicodeToNative(node, tmp); + if (NS_SUCCEEDED(rv)) + return AppendNative(tmp); + + return rv; +} + +nsresult +nsLocalFile::AppendRelativePath(const nsAString &node) +{ + nsCAutoString tmp; + nsresult rv = NS_CopyUnicodeToNative(node, tmp); + if (NS_SUCCEEDED(rv)) + return AppendRelativeNativePath(tmp); + return rv; +} + +nsresult +nsLocalFile::GetLeafName(nsAString &aLeafName) +{ + nsCAutoString tmp; + nsresult rv = GetNativeLeafName(tmp); + if (NS_SUCCEEDED(rv)) + rv = NS_CopyNativeToUnicode(tmp, aLeafName); + + return rv; +} + +nsresult +nsLocalFile::SetLeafName(const nsAString &aLeafName) +{ + nsCAutoString tmp; + nsresult rv = NS_CopyUnicodeToNative(aLeafName, tmp); + if (NS_SUCCEEDED(rv)) + return SetNativeLeafName(tmp); + + return rv; +} + +nsresult +nsLocalFile::GetPath(nsAString &_retval) +{ + return NS_CopyNativeToUnicode(mWorkingPath, _retval); +} + +nsresult +nsLocalFile::CopyTo(nsIFile *newParentDir, const nsAString &newName) +{ + if (newName.IsEmpty()) + return CopyToNative(newParentDir, nsCString()); + + nsCAutoString tmp; + nsresult rv = NS_CopyUnicodeToNative(newName, tmp); + if (NS_SUCCEEDED(rv)) + return CopyToNative(newParentDir, tmp); + + return rv; +} + +nsresult +nsLocalFile::CopyToFollowingLinks(nsIFile *newParentDir, const nsAString &newName) +{ + if (newName.IsEmpty()) + return CopyToFollowingLinksNative(newParentDir, nsCString()); + + nsCAutoString tmp; + nsresult rv = NS_CopyUnicodeToNative(newName, tmp); + if (NS_SUCCEEDED(rv)) + return CopyToFollowingLinksNative(newParentDir, tmp); + + return rv; +} + +nsresult +nsLocalFile::MoveTo(nsIFile *newParentDir, const nsAString &newName) +{ + if (newName.IsEmpty()) + return MoveToNative(newParentDir, nsCString()); + + nsCAutoString tmp; + nsresult rv = NS_CopyUnicodeToNative(newName, tmp); + if (NS_SUCCEEDED(rv)) + return MoveToNative(newParentDir, tmp); + + return rv; +} + +nsresult +nsLocalFile::GetTarget(nsAString &_retval) +{ + nsCAutoString tmp; + nsresult rv = GetNativeTarget(tmp); + if (NS_SUCCEEDED(rv)) + rv = NS_CopyNativeToUnicode(tmp, _retval); + + return rv; +} + +nsresult +NS_NewLocalFile(const nsAString &path, PRBool followLinks, nsILocalFile* *result) +{ + nsCAutoString buf; + nsresult rv = NS_CopyUnicodeToNative(path, buf); + if (NS_FAILED(rv)) { + *result = nsnull; + return rv; + } + return NS_NewNativeLocalFile(buf, followLinks, result); +} + +//----------------------------------------------------------------------------- +// nsLocalFile <static members> +//----------------------------------------------------------------------------- + +void +nsLocalFile::GlobalInit() +{ + nsresult rv = NS_CreateShortcutResolver(); + NS_ASSERTION(NS_SUCCEEDED(rv), "Shortcut resolver could not be created"); +} + +void +nsLocalFile::GlobalShutdown() +{ + NS_DestroyShortcutResolver(); +} + +NS_IMPL_ISUPPORTS1(nsDriveEnumerator, nsISimpleEnumerator) + +nsDriveEnumerator::nsDriveEnumerator() + : mLetter(0) +{ +} + +nsDriveEnumerator::~nsDriveEnumerator() +{ +} + +nsresult nsDriveEnumerator::Init() +{ + /* If the length passed to GetLogicalDriveStrings is smaller + * than the length of the string it would return, it returns + * the length required for the string. */ + DWORD length = GetLogicalDriveStrings(0, 0); + /* The string is null terminated */ + mDrives.SetLength(length+1); + if (!GetLogicalDriveStrings(length, mDrives.BeginWriting())) + return NS_ERROR_FAILURE; + mLetter = mDrives.get(); + return NS_OK; +} + +NS_IMETHODIMP nsDriveEnumerator::HasMoreElements(PRBool *aHasMore) +{ + *aHasMore = *mLetter != '\0'; + return NS_OK; +} + +NS_IMETHODIMP nsDriveEnumerator::GetNext(nsISupports **aNext) +{ + /* GetLogicalDrives stored in mLetter is a concatenation + * of null terminated strings, followed by a null terminator. */ + if (!*mLetter) { + *aNext = nsnull; + return NS_OK; + } + const char *drive = mLetter; + mLetter += strlen(drive) + 1; + nsILocalFile *file; + nsresult rv = + NS_NewNativeLocalFile(nsDependentCString(drive), PR_FALSE, &file); + + *aNext = file; + return rv; +} |