зеркало из https://github.com/mozilla/pjs.git
1703 строки
45 KiB
C++
1703 строки
45 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is Mozilla Communicator client code,
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* released March 31, 1998.
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*
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* The Initial Developer of the Original Code is Netscape Communications
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* Corporation. Portions created by Netscape are
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* Copyright (C) 1998-1999 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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* Mike Shaver <shaver@mozilla.org>
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* Christopher Blizzard <blizzard@mozilla.org>
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* Jason Eager <jce2@po.cwru.edu>
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* Stuart Parmenter <pavlov@netscape.com>
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* Brendan Eich <brendan@mozilla.org>
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* Pete Collins <petejc@mozdev.org>
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* Paul Ashford <arougthopher@lizardland.net>
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*/
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/**
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* Implementation of nsIFile for ``Unixy'' systems.
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*/
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// We're going to need some autoconf loving, I can just tell.
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <utime.h>
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#include <dirent.h>
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#include <ctype.h>
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#include <locale.h>
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#ifdef XP_BEOS
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#include <Path.h>
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#include <Entry.h>
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#include <Roster.h>
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#endif
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#if defined(VMS)
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#include <fabdef.h>
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#endif
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#include "nsDirectoryServiceDefs.h"
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#include "nsCRT.h"
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#include "nsCOMPtr.h"
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#include "nsMemory.h"
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#include "nsIFile.h"
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#include "nsString.h"
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#include "nsReadableUtils.h"
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#include "nsLocalFile.h"
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#include "nsIComponentManager.h"
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#include "nsXPIDLString.h"
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#include "prproces.h"
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#include "nsISimpleEnumerator.h"
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#include "nsITimelineService.h"
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#include "nsNativeCharsetUtils.h"
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// On some platforms file/directory name comparisons need to
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// be case-blind.
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#if defined(VMS)
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#define FILE_STRCMP strcasecmp
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#define FILE_STRNCMP strncasecmp
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#else
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#define FILE_STRCMP strcmp
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#define FILE_STRNCMP strncmp
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#endif
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#define VALIDATE_STAT_CACHE() \
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PR_BEGIN_MACRO \
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if (!mHaveCachedStat) { \
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FillStatCache(); \
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if (!mHaveCachedStat) \
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return NSRESULT_FOR_ERRNO(); \
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} \
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PR_END_MACRO
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#define CHECK_mPath() \
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PR_BEGIN_MACRO \
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if (mPath.IsEmpty()) \
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return NS_ERROR_NOT_INITIALIZED; \
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PR_END_MACRO
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/* directory enumerator */
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class NS_COM
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nsDirEnumeratorUnix : public nsISimpleEnumerator
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{
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public:
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nsDirEnumeratorUnix();
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// nsISupports interface
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NS_DECL_ISUPPORTS
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// nsISimpleEnumerator interface
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NS_DECL_NSISIMPLEENUMERATOR
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NS_IMETHOD Init(nsLocalFile *parent, PRBool ignored);
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private:
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~nsDirEnumeratorUnix();
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protected:
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NS_IMETHOD GetNextEntry();
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DIR *mDir;
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struct dirent *mEntry;
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nsCString mParentPath;
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};
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nsDirEnumeratorUnix::nsDirEnumeratorUnix() :
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mDir(nsnull),
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mEntry(nsnull)
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{
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}
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nsDirEnumeratorUnix::~nsDirEnumeratorUnix()
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{
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if (mDir)
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closedir(mDir);
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}
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NS_IMPL_ISUPPORTS1(nsDirEnumeratorUnix, nsISimpleEnumerator)
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NS_IMETHODIMP
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nsDirEnumeratorUnix::Init(nsLocalFile *parent, PRBool resolveSymlinks /*ignored*/)
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{
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nsCAutoString dirPath;
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if (NS_FAILED(parent->GetNativePath(dirPath)) ||
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dirPath.IsEmpty()) {
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return NS_ERROR_FILE_INVALID_PATH;
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}
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if (NS_FAILED(parent->GetNativePath(mParentPath)))
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return NS_ERROR_FAILURE;
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mDir = opendir(dirPath.get());
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if (!mDir)
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return NSRESULT_FOR_ERRNO();
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return GetNextEntry();
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}
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NS_IMETHODIMP
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nsDirEnumeratorUnix::HasMoreElements(PRBool *result)
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{
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*result = mDir && mEntry;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsDirEnumeratorUnix::GetNext(nsISupports **_retval)
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{
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nsresult rv;
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if (!mDir || !mEntry) {
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*_retval = nsnull;
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return NS_OK;
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}
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nsLocalFile* file = new nsLocalFile();
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if (!file)
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return NS_ERROR_OUT_OF_MEMORY;
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if (NS_FAILED(rv = file->InitWithNativePath(mParentPath)) ||
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NS_FAILED(rv = file->AppendNative(nsDependentCString(mEntry->d_name)))) {
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return rv;
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}
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*_retval = NS_STATIC_CAST(nsISupports *, file);
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NS_ADDREF(*_retval);
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return GetNextEntry();
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}
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NS_IMETHODIMP
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nsDirEnumeratorUnix::GetNextEntry()
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{
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do {
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errno = 0;
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mEntry = readdir(mDir);
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// end of dir or error
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if (!mEntry)
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return NSRESULT_FOR_ERRNO();
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// keep going past "." and ".."
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} while (mEntry->d_name[0] == '.' &&
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(mEntry->d_name[1] == '\0' || // .\0
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(mEntry->d_name[1] == '.' &&
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mEntry->d_name[2] == '\0'))); // ..\0
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return NS_OK;
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}
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nsLocalFile::nsLocalFile() :
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mHaveCachedStat(PR_FALSE)
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{
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}
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nsLocalFile::nsLocalFile(const nsLocalFile& other)
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: mCachedStat(other.mCachedStat)
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, mPath(other.mPath)
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, mHaveCachedStat(other.mHaveCachedStat)
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{
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}
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NS_IMPL_THREADSAFE_ISUPPORTS2(nsLocalFile,
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nsIFile,
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nsILocalFile)
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nsresult
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nsLocalFile::nsLocalFileConstructor(nsISupports *outer,
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const nsIID &aIID,
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void **aInstancePtr)
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{
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NS_ENSURE_ARG_POINTER(aInstancePtr);
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NS_ENSURE_NO_AGGREGATION(outer);
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*aInstancePtr = nsnull;
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nsCOMPtr<nsIFile> inst = new nsLocalFile();
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if (!inst)
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return NS_ERROR_OUT_OF_MEMORY;
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return inst->QueryInterface(aIID, aInstancePtr);
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}
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nsresult
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nsLocalFile::FillStatCache() {
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if (stat(mPath.get(), &mCachedStat) == -1) {
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// try lstat it may be a symlink
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if (lstat(mPath.get(), &mCachedStat) == -1) {
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return NSRESULT_FOR_ERRNO();
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}
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}
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mHaveCachedStat = PR_TRUE;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsLocalFile::Clone(nsIFile **file)
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{
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// Just copy-construct ourselves
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*file = new nsLocalFile(*this);
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if (!*file)
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return NS_ERROR_OUT_OF_MEMORY;
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NS_ADDREF(*file);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsLocalFile::InitWithNativePath(const nsACString &filePath)
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{
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if (Substring(filePath, 0, 2) == NS_LITERAL_CSTRING("~/")) {
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nsCOMPtr<nsIFile> homeDir;
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nsCAutoString homePath;
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if (NS_FAILED(NS_GetSpecialDirectory(NS_OS_HOME_DIR,
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getter_AddRefs(homeDir))) ||
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NS_FAILED(homeDir->GetNativePath(homePath))) {
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return NS_ERROR_FAILURE;
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}
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mPath = homePath + Substring(filePath, 1, filePath.Length() - 1);
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} else if (filePath.IsEmpty() || filePath.First() != '/') {
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NS_ERROR("Relative paths not allowed");
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return NS_ERROR_FILE_UNRECOGNIZED_PATH;
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} else {
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mPath = filePath;
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}
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// trim off trailing slashes
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ssize_t len = mPath.Length();
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while ((len > 1) && (mPath[len - 1] == '/'))
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--len;
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mPath.SetLength(len);
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InvalidateCache();
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return NS_OK;
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}
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NS_IMETHODIMP
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nsLocalFile::CreateAllAncestors(PRUint32 permissions)
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{
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// <jband> I promise to play nice
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char *buffer = NS_CONST_CAST(char *, mPath.get()),
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*slashp = buffer;
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#ifdef DEBUG_NSIFILE
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fprintf(stderr, "nsIFile: before: %s\n", buffer);
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#endif
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while ((slashp = strchr(slashp + 1, '/'))) {
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/*
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* Sequences of '/' are equivalent to a single '/'.
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*/
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if (slashp[1] == '/')
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continue;
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/*
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* If the path has a trailing slash, don't make the last component,
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* because we'll get EEXIST in Create when we try to build the final
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* component again, and it's easier to condition the logic here than
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* there.
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*/
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if (slashp[1] == '\0')
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break;
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/* Temporarily NUL-terminate here */
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*slashp = '\0';
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#ifdef DEBUG_NSIFILE
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fprintf(stderr, "nsIFile: mkdir(\"%s\")\n", buffer);
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#endif
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int mkdir_result = mkdir(buffer, permissions);
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int mkdir_errno = errno;
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if (mkdir_result == -1) {
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/*
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* Always set |errno| to EEXIST if the dir already exists
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* (we have to do this here since the errno value is not consistent
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* in all cases - various reasons like different platform,
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* automounter-controlled dir, etc. can affect it (see bug 125489
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* for details)).
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*/
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if (access(buffer, F_OK) == 0) {
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mkdir_errno = EEXIST;
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}
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}
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/* Put the / back before we (maybe) return */
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*slashp = '/';
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/*
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* We could get EEXIST for an existing file -- not directory --
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* with the name of one of our ancestors, but that's OK: we'll get
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* ENOTDIR when we try to make the next component in the path,
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* either here on back in Create, and error out appropriately.
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*/
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if (mkdir_result == -1 && mkdir_errno != EEXIST)
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return nsresultForErrno(mkdir_errno);
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}
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#ifdef DEBUG_NSIFILE
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fprintf(stderr, "nsIFile: after: %s\n", buffer);
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#endif
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return NS_OK;
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}
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NS_IMETHODIMP
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nsLocalFile::OpenNSPRFileDesc(PRInt32 flags, PRInt32 mode, PRFileDesc **_retval)
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{
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*_retval = PR_Open(mPath.get(), flags, mode);
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if (! *_retval)
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return NS_ErrorAccordingToNSPR();
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return NS_OK;
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}
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NS_IMETHODIMP
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nsLocalFile::OpenANSIFileDesc(const char *mode, FILE **_retval)
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{
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*_retval = fopen(mPath.get(), mode);
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if (! *_retval)
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return NS_ERROR_FAILURE;
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return NS_OK;
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}
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static int
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do_create(const char *path, PRIntn flags, mode_t mode, PRFileDesc **_retval)
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{
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*_retval = PR_Open(path, flags, mode);
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return *_retval ? 0 : -1;
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}
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static int
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do_mkdir(const char *path, PRIntn flags, mode_t mode, PRFileDesc **_retval)
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{
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*_retval = nsnull;
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return mkdir(path, mode);
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}
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nsresult
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nsLocalFile::CreateAndKeepOpen(PRUint32 type, PRIntn flags,
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PRUint32 permissions, PRFileDesc **_retval)
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{
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if (type != NORMAL_FILE_TYPE && type != DIRECTORY_TYPE)
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return NS_ERROR_FILE_UNKNOWN_TYPE;
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int result;
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int (*createFunc)(const char *, PRIntn, mode_t, PRFileDesc **) =
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(type == NORMAL_FILE_TYPE) ? do_create : do_mkdir;
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result = createFunc(mPath.get(), flags, permissions, _retval);
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if (result == -1 && errno == ENOENT) {
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/*
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* If we failed because of missing ancestor components, try to create
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* them and then retry the original creation.
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*
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* Ancestor directories get the same permissions as the file we're
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* creating, with the X bit set for each of (user,group,other) with
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* an R bit in the original permissions. If you want to do anything
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* fancy like setgid or sticky bits, do it by hand.
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*/
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int dirperm = permissions;
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if (permissions & S_IRUSR)
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dirperm |= S_IXUSR;
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if (permissions & S_IRGRP)
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dirperm |= S_IXGRP;
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if (permissions & S_IROTH)
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dirperm |= S_IXOTH;
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#ifdef DEBUG_NSIFILE
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fprintf(stderr, "nsIFile: perm = %o, dirperm = %o\n", permissions,
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dirperm);
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#endif
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if (NS_FAILED(CreateAllAncestors(dirperm)))
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return NS_ERROR_FAILURE;
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#ifdef DEBUG_NSIFILE
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fprintf(stderr, "nsIFile: Create(\"%s\") again\n", mPath.get());
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#endif
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result = createFunc(mPath.get(), flags, permissions, _retval);
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}
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return NSRESULT_FOR_RETURN(result);
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}
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NS_IMETHODIMP
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nsLocalFile::Create(PRUint32 type, PRUint32 permissions)
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{
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PRFileDesc *junk = nsnull;
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nsresult rv = CreateAndKeepOpen(type,
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PR_WRONLY | PR_CREATE_FILE | PR_TRUNCATE |
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PR_EXCL,
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permissions,
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&junk);
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if (junk)
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PR_Close(junk);
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return rv;
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}
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NS_IMETHODIMP
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nsLocalFile::AppendNative(const nsACString &fragment)
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{
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if (fragment.IsEmpty())
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return NS_OK;
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// only one component of path can be appended
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nsACString::const_iterator begin, end;
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if (FindCharInReadable('/', fragment.BeginReading(begin),
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fragment.EndReading(end)))
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return NS_ERROR_FILE_UNRECOGNIZED_PATH;
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return AppendRelativeNativePath(fragment);
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}
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NS_IMETHODIMP
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nsLocalFile::AppendRelativeNativePath(const nsACString &fragment)
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{
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if (fragment.IsEmpty())
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return NS_OK;
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// No leading '/'
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if (fragment.First() == '/')
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return NS_ERROR_FILE_UNRECOGNIZED_PATH;
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if (mPath.Equals(NS_LITERAL_CSTRING("/")))
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mPath.Append(fragment);
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else
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mPath.Append(NS_LITERAL_CSTRING("/") + fragment);
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InvalidateCache();
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return NS_OK;
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}
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NS_IMETHODIMP
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nsLocalFile::Normalize()
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{
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char resolved_path[PATH_MAX] = "";
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char *resolved_path_ptr = nsnull;
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#ifdef XP_BEOS
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BEntry be_e(mPath.get(), true);
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BPath be_p;
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status_t err;
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if ((err = be_e.GetPath(&be_p)) == B_OK) {
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resolved_path_ptr = (char *)be_p.Path();
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PL_strncpyz(resolved_path, resolved_path_ptr, PATH_MAX - 1);
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}
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#else
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resolved_path_ptr = realpath(mPath.get(), resolved_path);
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#endif
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// if there is an error, the return is null.
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if (!resolved_path_ptr)
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return NSRESULT_FOR_ERRNO();
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mPath = resolved_path;
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return NS_OK;
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}
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void
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nsLocalFile::LocateNativeLeafName(nsACString::const_iterator &begin,
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nsACString::const_iterator &end)
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{
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// XXX perhaps we should cache this??
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mPath.BeginReading(begin);
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mPath.EndReading(end);
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nsACString::const_iterator it = end;
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nsACString::const_iterator stop = begin;
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--stop;
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while (--it != stop) {
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if (*it == '/') {
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begin = ++it;
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return;
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}
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}
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// else, the entire path is the leaf name (which means this
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// isn't an absolute path... unexpected??)
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}
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NS_IMETHODIMP
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nsLocalFile::GetNativeLeafName(nsACString &aLeafName)
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{
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nsACString::const_iterator begin, end;
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LocateNativeLeafName(begin, end);
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aLeafName = Substring(begin, end);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsLocalFile::SetNativeLeafName(const nsACString &aLeafName)
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{
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nsACString::const_iterator begin, end;
|
|
LocateNativeLeafName(begin, end);
|
|
mPath.Replace(begin.get() - mPath.get(), Distance(begin, end), aLeafName);
|
|
InvalidateCache();
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsLocalFile::GetNativePath(nsACString &_retval)
|
|
{
|
|
_retval = mPath;
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsLocalFile::GetNativeTargetPathName(nsIFile *newParent,
|
|
const nsACString &newName,
|
|
nsACString &_retval)
|
|
{
|
|
nsresult rv;
|
|
nsCOMPtr<nsIFile> oldParent;
|
|
|
|
if (!newParent) {
|
|
if (NS_FAILED(rv = GetParent(getter_AddRefs(oldParent))))
|
|
return rv;
|
|
newParent = oldParent.get();
|
|
} else {
|
|
// check to see if our target directory exists
|
|
PRBool targetExists;
|
|
if (NS_FAILED(rv = newParent->Exists(&targetExists)))
|
|
return rv;
|
|
|
|
if (!targetExists) {
|
|
// XXX create the new directory with some permissions
|
|
rv = newParent->Create(DIRECTORY_TYPE, 0755);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
} else {
|
|
// make sure that the target is actually a directory
|
|
PRBool targetIsDirectory;
|
|
if (NS_FAILED(rv = newParent->IsDirectory(&targetIsDirectory)))
|
|
return rv;
|
|
if (!targetIsDirectory)
|
|
return NS_ERROR_FILE_DESTINATION_NOT_DIR;
|
|
}
|
|
}
|
|
|
|
nsACString::const_iterator nameBegin, nameEnd;
|
|
if (!newName.IsEmpty()) {
|
|
newName.BeginReading(nameBegin);
|
|
newName.EndReading(nameEnd);
|
|
}
|
|
else
|
|
LocateNativeLeafName(nameBegin, nameEnd);
|
|
|
|
nsCAutoString dirName;
|
|
if (NS_FAILED(rv = newParent->GetNativePath(dirName)))
|
|
return rv;
|
|
|
|
_retval = dirName
|
|
+ NS_LITERAL_CSTRING("/")
|
|
+ Substring(nameBegin, nameEnd);
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsLocalFile::CopyDirectoryTo(nsIFile *newParent)
|
|
{
|
|
nsresult rv;
|
|
/*
|
|
* dirCheck is used for various boolean test results such as from Equals,
|
|
* Exists, isDir, etc.
|
|
*/
|
|
PRBool dirCheck, isSymlink;
|
|
PRUint32 oldPerms;
|
|
|
|
if NS_FAILED((rv = IsDirectory(&dirCheck)))
|
|
return rv;
|
|
if (!dirCheck)
|
|
return CopyToNative(newParent, nsCString());
|
|
|
|
if (NS_FAILED(rv = Equals(newParent, &dirCheck)))
|
|
return rv;
|
|
if (dirCheck) {
|
|
// can't copy dir to itself
|
|
return NS_ERROR_INVALID_ARG;
|
|
}
|
|
|
|
if (NS_FAILED(rv = newParent->Exists(&dirCheck)))
|
|
return rv;
|
|
if (!dirCheck) {
|
|
// get the dirs old permissions
|
|
if (NS_FAILED(rv = GetPermissions(&oldPerms)))
|
|
return rv;
|
|
if (NS_FAILED(rv = newParent->Create(DIRECTORY_TYPE, oldPerms)))
|
|
return rv;
|
|
} else { // dir exists lets try to use leaf
|
|
nsCAutoString leafName;
|
|
if (NS_FAILED(rv = GetNativeLeafName(leafName)))
|
|
return rv;
|
|
if (NS_FAILED(rv = newParent->AppendNative(leafName)))
|
|
return rv;
|
|
if (NS_FAILED(rv = newParent->Exists(&dirCheck)))
|
|
return rv;
|
|
if (dirCheck)
|
|
return NS_ERROR_FILE_ALREADY_EXISTS; // dest exists
|
|
if (NS_FAILED(rv = newParent->Create(DIRECTORY_TYPE, oldPerms)))
|
|
return rv;
|
|
}
|
|
|
|
nsCOMPtr<nsISimpleEnumerator> dirIterator;
|
|
if (NS_FAILED(rv = GetDirectoryEntries(getter_AddRefs(dirIterator))))
|
|
return rv;
|
|
|
|
PRBool hasMore = PR_FALSE;
|
|
while (dirIterator->HasMoreElements(&hasMore), hasMore) {
|
|
nsCOMPtr<nsIFile> entry;
|
|
rv = dirIterator->GetNext((nsISupports**)getter_AddRefs(entry));
|
|
if (NS_FAILED(rv))
|
|
continue;
|
|
if (NS_FAILED(rv = entry->IsSymlink(&isSymlink)))
|
|
return rv;
|
|
if (NS_FAILED(rv = entry->IsDirectory(&dirCheck)))
|
|
return rv;
|
|
if (dirCheck && !isSymlink) {
|
|
nsCOMPtr<nsIFile> destClone;
|
|
rv = newParent->Clone(getter_AddRefs(destClone));
|
|
if (NS_SUCCEEDED(rv)) {
|
|
nsCOMPtr<nsILocalFile> newDir(do_QueryInterface(destClone));
|
|
if (NS_FAILED(rv = entry->CopyToNative(newDir, nsCString()))) {
|
|
#ifdef DEBUG
|
|
nsresult rv2;
|
|
nsCAutoString pathName;
|
|
if (NS_FAILED(rv2 = entry->GetNativePath(pathName)))
|
|
return rv2;
|
|
printf("Operation not supported: %s\n", pathName.get());
|
|
#endif
|
|
if (rv == NS_ERROR_OUT_OF_MEMORY)
|
|
return rv;
|
|
continue;
|
|
}
|
|
}
|
|
} else {
|
|
if (NS_FAILED(rv = entry->CopyToNative(newParent, nsCString()))) {
|
|
#ifdef DEBUG
|
|
nsresult rv2;
|
|
nsCAutoString pathName;
|
|
if (NS_FAILED(rv2 = entry->GetNativePath(pathName)))
|
|
return rv2;
|
|
printf("Operation not supported: %s\n", pathName.get());
|
|
#endif
|
|
if (rv == NS_ERROR_OUT_OF_MEMORY)
|
|
return rv;
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsLocalFile::CopyToNative(nsIFile *newParent, const nsACString &newName)
|
|
{
|
|
nsresult rv;
|
|
// check to make sure that this has been initialized properly
|
|
CHECK_mPath();
|
|
|
|
// we copy the parent here so 'newParent' remains immutable
|
|
nsCOMPtr <nsIFile> workParent;
|
|
if (newParent) {
|
|
if (NS_FAILED(rv = newParent->Clone(getter_AddRefs(workParent))))
|
|
return rv;
|
|
} else {
|
|
if (NS_FAILED(rv = GetParent(getter_AddRefs(workParent))))
|
|
return rv;
|
|
}
|
|
|
|
// check to see if we are a directory or if we are a file
|
|
PRBool isDirectory;
|
|
if (NS_FAILED(rv = IsDirectory(&isDirectory)))
|
|
return rv;
|
|
|
|
nsCAutoString newPathName;
|
|
if (isDirectory) {
|
|
if (!newName.IsEmpty()) {
|
|
if (NS_FAILED(rv = workParent->AppendNative(newName)))
|
|
return rv;
|
|
} else {
|
|
if (NS_FAILED(rv = GetNativeLeafName(newPathName)))
|
|
return rv;
|
|
if (NS_FAILED(rv = workParent->AppendNative(newPathName)))
|
|
return rv;
|
|
}
|
|
if (NS_FAILED(rv = CopyDirectoryTo(workParent)))
|
|
return rv;
|
|
} else {
|
|
rv = GetNativeTargetPathName(workParent, newName, newPathName);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
#ifdef DEBUG_blizzard
|
|
printf("nsLocalFile::CopyTo() %s -> %s\n", mPath.get(), newPathName.get());
|
|
#endif
|
|
|
|
// actually create the file.
|
|
nsCOMPtr<nsLocalFile> newFile = new nsLocalFile();
|
|
if (!newFile)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
rv = newFile->InitWithNativePath(newPathName);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
// get the old permissions
|
|
PRUint32 myPerms;
|
|
GetPermissions(&myPerms);
|
|
|
|
// Create the new file with the old file's permissions, even if write
|
|
// permission is missing. We can't create with write permission and
|
|
// then change back to myPerm on all filesystems (FAT on Linux, e.g.).
|
|
// But we can write to a read-only file on all Unix filesystems if we
|
|
// open it successfully for writing.
|
|
|
|
PRFileDesc *newFD;
|
|
rv = newFile->CreateAndKeepOpen(NORMAL_FILE_TYPE,
|
|
PR_WRONLY|PR_CREATE_FILE|PR_TRUNCATE,
|
|
myPerms,
|
|
&newFD);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
// open the old file, too
|
|
PRBool specialFile;
|
|
if (NS_FAILED(rv = IsSpecial(&specialFile))) {
|
|
PR_Close(newFD);
|
|
return rv;
|
|
}
|
|
if (specialFile) {
|
|
#ifdef DEBUG
|
|
printf("Operation not supported: %s\n", mPath.get());
|
|
#endif
|
|
// make sure to clean up properly
|
|
PR_Close(newFD);
|
|
return NS_OK;
|
|
}
|
|
|
|
PRFileDesc *oldFD;
|
|
rv = OpenNSPRFileDesc(PR_RDONLY, myPerms, &oldFD);
|
|
if (NS_FAILED(rv)) {
|
|
// make sure to clean up properly
|
|
PR_Close(newFD);
|
|
return rv;
|
|
}
|
|
|
|
#ifdef DEBUG_blizzard
|
|
PRInt32 totalRead = 0;
|
|
PRInt32 totalWritten = 0;
|
|
#endif
|
|
char buf[BUFSIZ];
|
|
PRInt32 bytesRead;
|
|
|
|
while ((bytesRead = PR_Read(oldFD, buf, BUFSIZ)) > 0) {
|
|
#ifdef DEBUG_blizzard
|
|
totalRead += bytesRead;
|
|
#endif
|
|
|
|
// PR_Write promises never to do a short write
|
|
PRInt32 bytesWritten = PR_Write(newFD, buf, bytesRead);
|
|
if (bytesWritten < 0) {
|
|
bytesRead = -1;
|
|
break;
|
|
}
|
|
NS_ASSERTION(bytesWritten == bytesRead, "short PR_Write?");
|
|
|
|
#ifdef DEBUG_blizzard
|
|
totalWritten += bytesWritten;
|
|
#endif
|
|
}
|
|
|
|
#ifdef DEBUG_blizzard
|
|
printf("read %d bytes, wrote %d bytes\n",
|
|
totalRead, totalWritten);
|
|
#endif
|
|
|
|
// close the files
|
|
PR_Close(newFD);
|
|
PR_Close(oldFD);
|
|
|
|
// check for read (or write) error after cleaning up
|
|
if (bytesRead < 0)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsLocalFile::CopyToFollowingLinksNative(nsIFile *newParent, const nsACString &newName)
|
|
{
|
|
return CopyToNative(newParent, newName);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsLocalFile::MoveToNative(nsIFile *newParent, const nsACString &newName)
|
|
{
|
|
nsresult rv;
|
|
|
|
// check to make sure that this has been initialized properly
|
|
CHECK_mPath();
|
|
|
|
// check to make sure that we have a new parent
|
|
nsCAutoString newPathName;
|
|
rv = GetNativeTargetPathName(newParent, newName, newPathName);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
// try for atomic rename, falling back to copy/delete
|
|
if (rename(mPath.get(), newPathName.get()) < 0) {
|
|
#ifdef VMS
|
|
if (errno == EXDEV || errno == ENXIO) {
|
|
#else
|
|
if (errno == EXDEV) {
|
|
#endif
|
|
rv = CopyToNative(newParent, newName);
|
|
if (NS_SUCCEEDED(rv))
|
|
rv = Remove(PR_TRUE);
|
|
} else {
|
|
rv = NSRESULT_FOR_ERRNO();
|
|
}
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsLocalFile::Remove(PRBool recursive)
|
|
{
|
|
CHECK_mPath();
|
|
|
|
VALIDATE_STAT_CACHE();
|
|
PRBool isSymLink, isDir;
|
|
|
|
nsresult rv = IsSymlink(&isSymLink);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
if (!recursive && isSymLink)
|
|
return NSRESULT_FOR_RETURN(unlink(mPath.get()));
|
|
|
|
isDir = S_ISDIR(mCachedStat.st_mode);
|
|
InvalidateCache();
|
|
if (isDir) {
|
|
if (recursive) {
|
|
nsCOMPtr<nsDirEnumeratorUnix> dir = new nsDirEnumeratorUnix();
|
|
if (!dir)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
rv = dir->Init(this, PR_FALSE);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
PRBool more;
|
|
while (dir->HasMoreElements(&more), more) {
|
|
nsCOMPtr<nsISupports> item;
|
|
rv = dir->GetNext(getter_AddRefs(item));
|
|
if (NS_FAILED(rv))
|
|
return NS_ERROR_FAILURE;
|
|
|
|
nsCOMPtr<nsIFile> file = do_QueryInterface(item, &rv);
|
|
if (NS_FAILED(rv))
|
|
return NS_ERROR_FAILURE;
|
|
if (NS_FAILED(rv = file->Remove(recursive)))
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
if (rmdir(mPath.get()) == -1)
|
|
return NSRESULT_FOR_ERRNO();
|
|
} else {
|
|
if (unlink(mPath.get()) == -1)
|
|
return NSRESULT_FOR_ERRNO();
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsLocalFile::GetLastModifiedTime(PRInt64 *aLastModTime)
|
|
{
|
|
CHECK_mPath();
|
|
NS_ENSURE_ARG(aLastModTime);
|
|
|
|
PRFileInfo64 info;
|
|
if (PR_GetFileInfo64(mPath.get(), &info) != PR_SUCCESS)
|
|
return NSRESULT_FOR_ERRNO();
|
|
|
|
// PRTime is a 64 bit value
|
|
// microseconds -> milliseconds
|
|
PRInt64 usecPerMsec;
|
|
LL_I2L(usecPerMsec, PR_USEC_PER_MSEC);
|
|
LL_DIV(*aLastModTime, info.modifyTime, usecPerMsec);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsLocalFile::SetLastModifiedTime(PRInt64 aLastModTime)
|
|
{
|
|
CHECK_mPath();
|
|
|
|
int result;
|
|
if (! LL_IS_ZERO(aLastModTime)) {
|
|
VALIDATE_STAT_CACHE();
|
|
struct utimbuf ut;
|
|
ut.actime = mCachedStat.st_atime;
|
|
|
|
// convert milliseconds to seconds since the unix epoch
|
|
double dTime;
|
|
LL_L2D(dTime, aLastModTime);
|
|
ut.modtime = (time_t) (dTime / PR_MSEC_PER_SEC);
|
|
result = utime(mPath.get(), &ut);
|
|
} else {
|
|
result = utime(mPath.get(), nsnull);
|
|
}
|
|
InvalidateCache();
|
|
return NSRESULT_FOR_RETURN(result);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsLocalFile::GetLastModifiedTimeOfLink(PRInt64 *aLastModTimeOfLink)
|
|
{
|
|
CHECK_mPath();
|
|
NS_ENSURE_ARG(aLastModTimeOfLink);
|
|
|
|
struct stat sbuf;
|
|
if (lstat(mPath.get(), &sbuf) == -1)
|
|
return NSRESULT_FOR_ERRNO();
|
|
LL_I2L(*aLastModTimeOfLink, (PRInt32)sbuf.st_mtime);
|
|
|
|
// lstat returns st_mtime in seconds
|
|
PRInt64 msecPerSec;
|
|
LL_I2L(msecPerSec, PR_MSEC_PER_SEC);
|
|
LL_MUL(*aLastModTimeOfLink, *aLastModTimeOfLink, msecPerSec);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
/*
|
|
* utime(2) may or may not dereference symlinks, joy.
|
|
*/
|
|
NS_IMETHODIMP
|
|
nsLocalFile::SetLastModifiedTimeOfLink(PRInt64 aLastModTimeOfLink)
|
|
{
|
|
return SetLastModifiedTime(aLastModTimeOfLink);
|
|
}
|
|
|
|
/*
|
|
* Only send back permissions bits: maybe we want to send back the whole
|
|
* mode_t to permit checks against other file types?
|
|
*/
|
|
|
|
#define NORMALIZE_PERMS(mode) ((mode)& (S_IRWXU | S_IRWXG | S_IRWXO))
|
|
|
|
NS_IMETHODIMP
|
|
nsLocalFile::GetPermissions(PRUint32 *aPermissions)
|
|
{
|
|
NS_ENSURE_ARG(aPermissions);
|
|
VALIDATE_STAT_CACHE();
|
|
*aPermissions = NORMALIZE_PERMS(mCachedStat.st_mode);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsLocalFile::GetPermissionsOfLink(PRUint32 *aPermissionsOfLink)
|
|
{
|
|
CHECK_mPath();
|
|
NS_ENSURE_ARG(aPermissionsOfLink);
|
|
|
|
struct stat sbuf;
|
|
if (lstat(mPath.get(), &sbuf) == -1)
|
|
return NSRESULT_FOR_ERRNO();
|
|
*aPermissionsOfLink = NORMALIZE_PERMS(sbuf.st_mode);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsLocalFile::SetPermissions(PRUint32 aPermissions)
|
|
{
|
|
CHECK_mPath();
|
|
|
|
InvalidateCache();
|
|
|
|
/*
|
|
* Race condition here: we should use fchmod instead, there's no way to
|
|
* guarantee the name still refers to the same file.
|
|
*/
|
|
if (chmod(mPath.get(), aPermissions) < 0)
|
|
return NSRESULT_FOR_ERRNO();
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsLocalFile::SetPermissionsOfLink(PRUint32 aPermissions)
|
|
{
|
|
return SetPermissions(aPermissions);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsLocalFile::GetFileSize(PRInt64 *aFileSize)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aFileSize);
|
|
*aFileSize = LL_ZERO;
|
|
VALIDATE_STAT_CACHE();
|
|
|
|
#if defined(VMS)
|
|
/* Only two record formats can report correct file content size */
|
|
if ((mCachedStat.st_fab_rfm != FAB$C_STMLF) &&
|
|
(mCachedStat.st_fab_rfm != FAB$C_STMCR)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
#endif
|
|
|
|
/* XXX autoconf for and use stat64 if available */
|
|
if (!S_ISDIR(mCachedStat.st_mode)) {
|
|
LL_UI2L(*aFileSize, (PRUint32)mCachedStat.st_size);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsLocalFile::SetFileSize(PRInt64 aFileSize)
|
|
{
|
|
CHECK_mPath();
|
|
|
|
PRInt32 size;
|
|
LL_L2I(size, aFileSize);
|
|
/* XXX truncate64? */
|
|
InvalidateCache();
|
|
if (truncate(mPath.get(), (off_t)size) == -1)
|
|
return NSRESULT_FOR_ERRNO();
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsLocalFile::GetFileSizeOfLink(PRInt64 *aFileSize)
|
|
{
|
|
CHECK_mPath();
|
|
NS_ENSURE_ARG(aFileSize);
|
|
|
|
struct stat sbuf;
|
|
if (lstat(mPath.get(), &sbuf) == -1)
|
|
return NSRESULT_FOR_ERRNO();
|
|
/* XXX autoconf for and use lstat64 if available */
|
|
LL_UI2L(*aFileSize, (PRUint32)sbuf.st_size);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsLocalFile::GetDiskSpaceAvailable(PRInt64 *aDiskSpaceAvailable)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aDiskSpaceAvailable);
|
|
|
|
// These systems have the operations necessary to check disk space.
|
|
|
|
#if defined(HAVE_SYS_STATFS_H) || defined(HAVE_SYS_STATVFS_H)
|
|
|
|
// check to make sure that mPath is properly initialized
|
|
CHECK_mPath();
|
|
|
|
struct STATFS fs_buf;
|
|
|
|
/*
|
|
* Members of the STATFS struct that you should know about:
|
|
* f_bsize = block size on disk.
|
|
* f_bavail = number of free blocks available to a non-superuser.
|
|
* f_bfree = number of total free blocks in file system.
|
|
*/
|
|
|
|
if (STATFS(mPath.get(), &fs_buf) < 0) {
|
|
// The call to STATFS failed.
|
|
#ifdef DEBUG
|
|
printf("ERROR: GetDiskSpaceAvailable: STATFS call FAILED. \n");
|
|
#endif
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
#ifdef DEBUG_DISK_SPACE
|
|
printf("DiskSpaceAvailable: %d bytes\n",
|
|
fs_buf.f_bsize * (fs_buf.f_bavail - 1));
|
|
#endif
|
|
|
|
/*
|
|
* The number of bytes free == The number of free blocks available to
|
|
* a non-superuser, minus one as a fudge factor, multiplied by the size
|
|
* of the aforementioned blocks.
|
|
*/
|
|
PRInt64 bsize, bavail;
|
|
|
|
LL_I2L(bsize, fs_buf.f_bsize);
|
|
LL_I2L(bavail, fs_buf.f_bavail - 1);
|
|
LL_MUL(*aDiskSpaceAvailable, bsize, bavail);
|
|
return NS_OK;
|
|
|
|
#else
|
|
/*
|
|
* This platform doesn't have statfs or statvfs. I'm sure that there's
|
|
* a way to check for free disk space on platforms that don't have statfs
|
|
* (I'm SURE they have df, for example).
|
|
*
|
|
* Until we figure out how to do that, lets be honest and say that this
|
|
* command isn't implemented properly for these platforms yet.
|
|
*/
|
|
#ifdef DEBUG
|
|
printf("ERROR: GetDiskSpaceAvailable: Not implemented for plaforms without statfs.\n");
|
|
#endif
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
|
|
#endif /* HAVE_SYS_STATFS_H or HAVE_SYS_STATVFS_H */
|
|
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsLocalFile::GetParent(nsIFile **aParent)
|
|
{
|
|
CHECK_mPath();
|
|
NS_ENSURE_ARG_POINTER(aParent);
|
|
*aParent = nsnull;
|
|
|
|
// if '/' we are at the top of the volume, return null
|
|
if (mPath.Equals("/"))
|
|
return NS_OK;
|
|
|
|
// <brendan, after jband> I promise to play nice
|
|
char *buffer = NS_CONST_CAST(char *, mPath.get()),
|
|
*slashp = buffer;
|
|
|
|
// find the last significant slash in buffer
|
|
slashp = strrchr(buffer, '/');
|
|
NS_ASSERTION(slashp, "non-canonical mPath?");
|
|
if (!slashp)
|
|
return NS_ERROR_FILE_INVALID_PATH;
|
|
|
|
// for the case where we are at '/'
|
|
if (slashp == buffer)
|
|
slashp++;
|
|
|
|
// temporarily terminate buffer at the last significant slash
|
|
char c = *slashp;
|
|
*slashp = '\0';
|
|
|
|
nsCOMPtr<nsILocalFile> localFile;
|
|
nsresult rv = NS_NewNativeLocalFile(nsDependentCString(buffer), PR_TRUE,
|
|
getter_AddRefs(localFile));
|
|
|
|
// make buffer whole again
|
|
*slashp = c;
|
|
|
|
if (NS_SUCCEEDED(rv) && localFile)
|
|
rv = CallQueryInterface(localFile, aParent);
|
|
return rv;
|
|
}
|
|
|
|
/*
|
|
* The results of Exists, isWritable and isReadable are not cached.
|
|
*/
|
|
|
|
NS_IMETHODIMP
|
|
nsLocalFile::Exists(PRBool *_retval)
|
|
{
|
|
CHECK_mPath();
|
|
NS_ENSURE_ARG_POINTER(_retval);
|
|
|
|
*_retval = (access(mPath.get(), F_OK) == 0);
|
|
return NS_OK;
|
|
}
|
|
|
|
#ifdef XP_BEOS
|
|
// access() is buggy in BeOS POSIX implementation, at least for BFS, using stat() instead
|
|
NS_IMETHODIMP
|
|
nsLocalFile::IsWritable(PRBool *_retval)
|
|
{
|
|
CHECK_mPath();
|
|
NS_ENSURE_ARG_POINTER(_retval);
|
|
struct stat buf;
|
|
*_retval = (stat(mPath.get(), &buf) == 0);
|
|
*_retval = *_retval && (buf.st_mode & (S_IWUSR | S_IWGRP | S_IWOTH ));
|
|
if (*_retval || errno == EACCES)
|
|
return NS_OK;
|
|
return NSRESULT_FOR_ERRNO();
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsLocalFile::IsReadable(PRBool *_retval)
|
|
{
|
|
CHECK_mPath();
|
|
NS_ENSURE_ARG_POINTER(_retval);
|
|
struct stat buf;
|
|
*_retval = (stat(mPath.get(), &buf) == 0);
|
|
*_retval = *_retval && (buf.st_mode & (S_IRUSR | S_IRGRP | S_IROTH ));
|
|
if (*_retval || errno == EACCES)
|
|
return NS_OK;
|
|
return NSRESULT_FOR_ERRNO();
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsLocalFile::IsExecutable(PRBool *_retval)
|
|
{
|
|
CHECK_mPath();
|
|
NS_ENSURE_ARG_POINTER(_retval);
|
|
struct stat buf;
|
|
*_retval = (stat(mPath.get(), &buf) == 0);
|
|
*_retval = *_retval && (buf.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH ));
|
|
if (*_retval || errno == EACCES)
|
|
return NS_OK;
|
|
return NSRESULT_FOR_ERRNO();
|
|
}
|
|
#else
|
|
NS_IMETHODIMP
|
|
nsLocalFile::IsWritable(PRBool *_retval)
|
|
{
|
|
CHECK_mPath();
|
|
NS_ENSURE_ARG_POINTER(_retval);
|
|
|
|
*_retval = (access(mPath.get(), W_OK) == 0);
|
|
if (*_retval || errno == EACCES)
|
|
return NS_OK;
|
|
return NSRESULT_FOR_ERRNO();
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsLocalFile::IsReadable(PRBool *_retval)
|
|
{
|
|
CHECK_mPath();
|
|
NS_ENSURE_ARG_POINTER(_retval);
|
|
|
|
*_retval = (access(mPath.get(), R_OK) == 0);
|
|
if (*_retval || errno == EACCES)
|
|
return NS_OK;
|
|
return NSRESULT_FOR_ERRNO();
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsLocalFile::IsExecutable(PRBool *_retval)
|
|
{
|
|
CHECK_mPath();
|
|
NS_ENSURE_ARG_POINTER(_retval);
|
|
|
|
*_retval = (access(mPath.get(), X_OK) == 0);
|
|
if (*_retval || errno == EACCES)
|
|
return NS_OK;
|
|
return NSRESULT_FOR_ERRNO();
|
|
}
|
|
#endif
|
|
NS_IMETHODIMP
|
|
nsLocalFile::IsDirectory(PRBool *_retval)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(_retval);
|
|
*_retval = PR_FALSE;
|
|
VALIDATE_STAT_CACHE();
|
|
*_retval = S_ISDIR(mCachedStat.st_mode);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsLocalFile::IsFile(PRBool *_retval)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(_retval);
|
|
*_retval = PR_FALSE;
|
|
VALIDATE_STAT_CACHE();
|
|
*_retval = S_ISREG(mCachedStat.st_mode);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsLocalFile::IsHidden(PRBool *_retval)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(_retval);
|
|
nsACString::const_iterator begin, end;
|
|
LocateNativeLeafName(begin, end);
|
|
*_retval = (*begin == '.');
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsLocalFile::IsSymlink(PRBool *_retval)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(_retval);
|
|
CHECK_mPath();
|
|
|
|
struct stat symStat;
|
|
lstat(mPath.get(), &symStat);
|
|
*_retval=S_ISLNK(symStat.st_mode);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsLocalFile::IsSpecial(PRBool *_retval)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(_retval);
|
|
VALIDATE_STAT_CACHE();
|
|
*_retval = S_ISCHR(mCachedStat.st_mode) ||
|
|
S_ISBLK(mCachedStat.st_mode) ||
|
|
#ifdef S_ISSOCK
|
|
S_ISSOCK(mCachedStat.st_mode) ||
|
|
#endif
|
|
S_ISFIFO(mCachedStat.st_mode);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsLocalFile::Equals(nsIFile *inFile, PRBool *_retval)
|
|
{
|
|
NS_ENSURE_ARG(inFile);
|
|
NS_ENSURE_ARG_POINTER(_retval);
|
|
*_retval = PR_FALSE;
|
|
|
|
nsresult rv;
|
|
nsCAutoString inPath;
|
|
|
|
if (NS_FAILED(rv = inFile->GetNativePath(inPath)))
|
|
return rv;
|
|
|
|
*_retval = !FILE_STRCMP(inPath.get(), mPath.get());
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsLocalFile::Contains(nsIFile *inFile, PRBool recur, PRBool *_retval)
|
|
{
|
|
CHECK_mPath();
|
|
NS_ENSURE_ARG(inFile);
|
|
NS_ENSURE_ARG_POINTER(_retval);
|
|
|
|
nsCAutoString inPath;
|
|
nsresult rv;
|
|
|
|
if (NS_FAILED(rv = inFile->GetNativePath(inPath)))
|
|
return rv;
|
|
|
|
*_retval = PR_FALSE;
|
|
|
|
ssize_t len = mPath.Length();
|
|
if (FILE_STRNCMP(mPath.get(), inPath.get(), len) == 0) {
|
|
// Now make sure that the |inFile|'s path has a separator at len,
|
|
// which implies that it has more components after len.
|
|
if (inPath[len] == '/')
|
|
*_retval = PR_TRUE;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsLocalFile::GetNativeTarget(nsACString &_retval)
|
|
{
|
|
CHECK_mPath();
|
|
_retval.Truncate();
|
|
|
|
struct stat symStat;
|
|
lstat(mPath.get(), &symStat);
|
|
if (!S_ISLNK(symStat.st_mode))
|
|
return NS_ERROR_FILE_INVALID_PATH;
|
|
|
|
PRInt64 targetSize64;
|
|
if (NS_FAILED(GetFileSizeOfLink(&targetSize64)))
|
|
return NS_ERROR_FAILURE;
|
|
|
|
PRInt32 size;
|
|
LL_L2I(size, targetSize64);
|
|
char *target = (char *)nsMemory::Alloc(size + 1);
|
|
if (!target)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
if (readlink(mPath.get(), target, (size_t)size) < 0) {
|
|
nsMemory::Free(target);
|
|
return NSRESULT_FOR_ERRNO();
|
|
}
|
|
target[size] = '\0';
|
|
|
|
nsresult rv;
|
|
PRBool isSymlink;
|
|
nsCOMPtr<nsIFile> self(this);
|
|
nsCOMPtr<nsIFile> parent;
|
|
while (NS_SUCCEEDED(rv = self->GetParent(getter_AddRefs(parent)))) {
|
|
NS_ASSERTION(parent != nsnull, "no parent?!");
|
|
|
|
if (target[0] != '/') {
|
|
nsCOMPtr<nsILocalFile> localFile(do_QueryInterface(parent, &rv));
|
|
if (NS_FAILED(rv))
|
|
break;
|
|
if (NS_FAILED(rv = localFile->AppendRelativeNativePath(nsDependentCString(target))))
|
|
break;
|
|
if (NS_FAILED(rv = localFile->GetNativePath(_retval)))
|
|
break;
|
|
if (NS_FAILED(rv = parent->IsSymlink(&isSymlink)))
|
|
break;
|
|
self = parent;
|
|
} else {
|
|
nsCOMPtr<nsILocalFile> localFile;
|
|
rv = NS_NewNativeLocalFile(nsDependentCString(target), PR_TRUE,
|
|
getter_AddRefs(localFile));
|
|
if (NS_FAILED(rv))
|
|
break;
|
|
if (NS_FAILED(rv = localFile->IsSymlink(&isSymlink)))
|
|
break;
|
|
_retval = target; // XXX can we avoid this buffer copy?
|
|
self = do_QueryInterface(localFile);
|
|
}
|
|
if (NS_FAILED(rv) || !isSymlink)
|
|
break;
|
|
|
|
const nsPromiseFlatCString &flatRetval = PromiseFlatCString(_retval);
|
|
|
|
// strip off any and all trailing '/'
|
|
PRInt32 len = strlen(target);
|
|
while (target[len-1] == '/' && len > 1)
|
|
target[--len] = '\0';
|
|
if (lstat(flatRetval.get(), &symStat) < 0) {
|
|
rv = NSRESULT_FOR_ERRNO();
|
|
break;
|
|
}
|
|
if (!S_ISLNK(symStat.st_mode)) {
|
|
rv = NS_ERROR_FILE_INVALID_PATH;
|
|
break;
|
|
}
|
|
size = symStat.st_size;
|
|
if (readlink(flatRetval.get(), target, size) < 0) {
|
|
rv = NSRESULT_FOR_ERRNO();
|
|
break;
|
|
}
|
|
target[size] = '\0';
|
|
|
|
_retval.Truncate();
|
|
}
|
|
|
|
nsMemory::Free(target);
|
|
|
|
if (NS_FAILED(rv))
|
|
_retval.Truncate();
|
|
return rv;
|
|
}
|
|
|
|
/* attribute PRBool followLinks; */
|
|
NS_IMETHODIMP
|
|
nsLocalFile::GetFollowLinks(PRBool *aFollowLinks)
|
|
{
|
|
*aFollowLinks = PR_TRUE;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsLocalFile::SetFollowLinks(PRBool aFollowLinks)
|
|
{
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsLocalFile::GetDirectoryEntries(nsISimpleEnumerator **entries)
|
|
{
|
|
nsCOMPtr<nsDirEnumeratorUnix> dir = new nsDirEnumeratorUnix();
|
|
if (!dir)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
nsresult rv = dir->Init(this, PR_FALSE);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
/* QI needed? If not, need to ADDREF. */
|
|
return dir->QueryInterface(NS_GET_IID(nsISimpleEnumerator),
|
|
(void **)entries);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsLocalFile::Load(PRLibrary **_retval)
|
|
{
|
|
CHECK_mPath();
|
|
NS_ENSURE_ARG_POINTER(_retval);
|
|
|
|
NS_TIMELINE_START_TIMER("PR_LoadLibrary");
|
|
|
|
*_retval = PR_LoadLibrary(mPath.get());
|
|
|
|
NS_TIMELINE_STOP_TIMER("PR_LoadLibrary");
|
|
NS_TIMELINE_MARK_TIMER1("PR_LoadLibrary", mPath.get());
|
|
|
|
if (!*_retval)
|
|
return NS_ERROR_FAILURE;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsLocalFile::GetPersistentDescriptor(nsACString &aPersistentDescriptor)
|
|
{
|
|
return GetNativePath(aPersistentDescriptor);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsLocalFile::SetPersistentDescriptor(const nsACString &aPersistentDescriptor)
|
|
{
|
|
return InitWithNativePath(aPersistentDescriptor);
|
|
}
|
|
|
|
#ifdef XP_BEOS
|
|
NS_IMETHODIMP
|
|
nsLocalFile::Reveal()
|
|
{
|
|
BPath bPath(mPath.get());
|
|
bPath.GetParent(&bPath);
|
|
entry_ref ref;
|
|
get_ref_for_path(bPath.Path(),&ref);
|
|
BMessage message(B_REFS_RECEIVED);
|
|
message.AddRef("refs",&ref);
|
|
BMessenger messenger("application/x-vnd.Be-TRAK");
|
|
messenger.SendMessage(&message);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsLocalFile::Launch()
|
|
{
|
|
entry_ref ref;
|
|
get_ref_for_path (mPath.get(), &ref);
|
|
be_roster->Launch (&ref);
|
|
|
|
return NS_OK;
|
|
}
|
|
#else
|
|
NS_IMETHODIMP
|
|
nsLocalFile::Reveal()
|
|
{
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsLocalFile::Launch()
|
|
{
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
#endif
|
|
|
|
nsresult
|
|
NS_NewNativeLocalFile(const nsACString &path, PRBool followSymlinks, nsILocalFile **result)
|
|
{
|
|
nsLocalFile *file = new nsLocalFile();
|
|
if (!file)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
NS_ADDREF(file);
|
|
|
|
if (!path.IsEmpty()) {
|
|
nsresult rv = file->InitWithNativePath(path);
|
|
if (NS_FAILED(rv)) {
|
|
NS_RELEASE(file);
|
|
return rv;
|
|
}
|
|
}
|
|
*result = file;
|
|
return NS_OK;
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// unicode support
|
|
//-----------------------------------------------------------------------------
|
|
|
|
#define SET_UCS(func, ucsArg) \
|
|
{ \
|
|
nsCAutoString buf; \
|
|
nsresult rv = NS_CopyUnicodeToNative(ucsArg, buf); \
|
|
if (NS_FAILED(rv)) \
|
|
return rv; \
|
|
return (func)(buf); \
|
|
}
|
|
|
|
#define GET_UCS(func, ucsArg) \
|
|
{ \
|
|
nsCAutoString buf; \
|
|
nsresult rv = (func)(buf); \
|
|
if (NS_FAILED(rv)) return rv; \
|
|
return NS_CopyNativeToUnicode(buf, ucsArg); \
|
|
}
|
|
|
|
#define SET_UCS_2ARGS_2(func, opaqueArg, ucsArg) \
|
|
{ \
|
|
nsCAutoString buf; \
|
|
nsresult rv = NS_CopyUnicodeToNative(ucsArg, buf); \
|
|
if (NS_FAILED(rv)) \
|
|
return rv; \
|
|
return (func)(opaqueArg, buf); \
|
|
}
|
|
|
|
// Unicode interface Wrapper
|
|
nsresult
|
|
nsLocalFile::InitWithPath(const nsAString &filePath)
|
|
{
|
|
SET_UCS(InitWithNativePath, filePath);
|
|
}
|
|
nsresult
|
|
nsLocalFile::Append(const nsAString &node)
|
|
{
|
|
SET_UCS(AppendNative, node);
|
|
}
|
|
nsresult
|
|
nsLocalFile::AppendRelativePath(const nsAString &node)
|
|
{
|
|
SET_UCS(AppendRelativeNativePath, node);
|
|
}
|
|
nsresult
|
|
nsLocalFile::GetLeafName(nsAString &aLeafName)
|
|
{
|
|
GET_UCS(GetNativeLeafName, aLeafName);
|
|
}
|
|
nsresult
|
|
nsLocalFile::SetLeafName(const nsAString &aLeafName)
|
|
{
|
|
SET_UCS(SetNativeLeafName, aLeafName);
|
|
}
|
|
nsresult
|
|
nsLocalFile::GetPath(nsAString &_retval)
|
|
{
|
|
return NS_CopyNativeToUnicode(mPath, _retval);
|
|
}
|
|
nsresult
|
|
nsLocalFile::CopyTo(nsIFile *newParentDir, const nsAString &newName)
|
|
{
|
|
SET_UCS_2ARGS_2(CopyToNative , newParentDir, newName);
|
|
}
|
|
nsresult
|
|
nsLocalFile::CopyToFollowingLinks(nsIFile *newParentDir, const nsAString &newName)
|
|
{
|
|
SET_UCS_2ARGS_2(CopyToFollowingLinksNative , newParentDir, newName);
|
|
}
|
|
nsresult
|
|
nsLocalFile::MoveTo(nsIFile *newParentDir, const nsAString &newName)
|
|
{
|
|
SET_UCS_2ARGS_2(MoveToNative, newParentDir, newName);
|
|
}
|
|
nsresult
|
|
nsLocalFile::GetTarget(nsAString &_retval)
|
|
{
|
|
GET_UCS(GetNativeTarget, _retval);
|
|
}
|
|
nsresult
|
|
NS_NewLocalFile(const nsAString &path, PRBool followLinks, nsILocalFile* *result)
|
|
{
|
|
nsCAutoString buf;
|
|
nsresult rv = NS_CopyUnicodeToNative(path, buf);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
return NS_NewNativeLocalFile(buf, followLinks, result);
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// global init/shutdown
|
|
//-----------------------------------------------------------------------------
|
|
|
|
void
|
|
nsLocalFile::GlobalInit()
|
|
{
|
|
}
|
|
|
|
void
|
|
nsLocalFile::GlobalShutdown()
|
|
{
|
|
}
|