зеркало из https://github.com/mozilla/gecko-dev.git
368 строки
11 KiB
C++
368 строки
11 KiB
C++
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: NPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1999
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the NPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsIServiceManager.h"
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#include "nsLocalFile.h" // includes platform-specific headers
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#include "nsLocalFileUnicode.h"
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#include "nsString.h"
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#include "nsCOMPtr.h"
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#include "nsReadableUtils.h"
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#include "nsPrintfCString.h"
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void NS_StartupLocalFile()
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{
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nsLocalFile::GlobalInit();
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}
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void NS_ShutdownLocalFile()
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{
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nsLocalFile::GlobalShutdown();
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}
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#if !defined(XP_MAC)
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NS_IMETHODIMP
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nsLocalFile::InitWithFile(nsILocalFile *aFile)
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{
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NS_ENSURE_ARG(aFile);
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nsCAutoString path;
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aFile->GetPath(path);
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if (path.IsEmpty())
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return NS_ERROR_FAILURE;
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return InitWithPath(path);
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}
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#endif
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// should work on Macintosh, Unix, and Win32.
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#define kMaxFilenameLength 31
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NS_IMETHODIMP
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nsLocalFile::CreateUnique(PRUint32 type, PRUint32 attributes)
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{
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nsresult rv = Create(type, attributes);
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if (NS_SUCCEEDED(rv)) return NS_OK;
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if (rv != NS_ERROR_FILE_ALREADY_EXISTS) return rv;
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nsCAutoString leafName;
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rv = GetNativeLeafName(leafName);
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if (NS_FAILED(rv)) return rv;
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const char* lastDot = strrchr(leafName.get(), '.');
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char suffix[kMaxFilenameLength + 1] = "";
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if (lastDot)
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{
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strncpy(suffix, lastDot, kMaxFilenameLength); // include '.'
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suffix[kMaxFilenameLength] = 0; // make sure it's null terminated
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leafName.SetLength(lastDot - leafName.get()); // strip suffix and dot.
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}
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// 27 should work on Macintosh, Unix, and Win32.
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const int maxRootLength = 27 - strlen(suffix) - 1;
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if ((int)leafName.Length() > (int)maxRootLength)
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leafName.SetLength(maxRootLength);
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for (short indx = 1; indx < 10000; indx++)
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{
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// start with "Picture-1.jpg" after "Picture.jpg" exists
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SetNativeLeafName(leafName +
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nsPrintfCString("-%d", indx) +
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nsDependentCString(suffix));
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rv = Create(type, attributes);
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if (NS_SUCCEEDED(rv) || rv != NS_ERROR_FILE_ALREADY_EXISTS)
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{
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return rv;
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}
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}
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// The disk is full, sort of
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return NS_ERROR_FILE_TOO_BIG;
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}
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#if defined(XP_MAC)
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static const char kPathSeparatorChar = ':';
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#elif defined(XP_WIN) || defined(XP_OS2)
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static const char kPathSeparatorChar = '\\';
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#elif defined(XP_UNIX) || defined(XP_BEOS)
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static const char kPathSeparatorChar = '/';
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#else
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#error Need to define file path separator for your platform
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#endif
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#if defined(XP_MAC)
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static const char kSlashStr[] = "/";
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static const char kESCSlashStr[] = "%2F";
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#endif
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static PRInt32 SplitPath(char *path, char **nodeArray, PRInt32 arrayLen)
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{
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if (*path == 0)
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return 0;
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char **nodePtr = nodeArray;
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if (*path == kPathSeparatorChar)
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path++;
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*nodePtr++ = path;
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for (char *cp = path; *cp != 0; cp++) {
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if (*cp == kPathSeparatorChar) {
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*cp++ = 0;
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if (*cp != 0) {
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if (nodePtr - nodeArray >= arrayLen)
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return -1;
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*nodePtr++ = cp;
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}
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}
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}
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return nodePtr - nodeArray;
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}
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NS_IMETHODIMP
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nsLocalFile::GetRelativeDescriptor(nsILocalFile *fromFile, nsACString& _retval)
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{
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const PRInt32 kMaxNodesInPath = 32;
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nsresult rv;
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_retval.Truncate(0);
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nsCAutoString thisPath, fromPath;
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char *thisNodes[kMaxNodesInPath], *fromNodes[kMaxNodesInPath];
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PRInt32 thisNodeCnt, fromNodeCnt, nodeIndex;
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rv = GetPath(thisPath);
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if (NS_FAILED(rv))
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return rv;
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rv = fromFile->GetPath(fromPath);
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if (NS_FAILED(rv))
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return rv;
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thisNodeCnt = SplitPath((char *)thisPath.get(), thisNodes, kMaxNodesInPath);
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fromNodeCnt = SplitPath((char *)fromPath.get(), fromNodes, kMaxNodesInPath);
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if (thisNodeCnt < 0 || fromNodeCnt < 0)
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return NS_ERROR_FAILURE;
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for (nodeIndex = 0; nodeIndex < thisNodeCnt && nodeIndex < fromNodeCnt; nodeIndex++) {
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if (!strcmp(thisNodes[nodeIndex], fromNodes[nodeIndex]))
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break;
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}
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PRInt32 branchIndex = nodeIndex;
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for (nodeIndex = branchIndex; nodeIndex < fromNodeCnt; nodeIndex++)
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_retval.Append(NS_LITERAL_CSTRING("../"));
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for (nodeIndex = branchIndex; nodeIndex < thisNodeCnt; nodeIndex++) {
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#ifdef XP_MAC
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nsCAutoString nodeStr(thisNodes[nodeIndex]);
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nodeStr.ReplaceSubstring(kSlashStr, kESCSlashStr);
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#else
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nsDependentCString nodeStr(thisNodes[nodeIndex]);
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#endif
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_retval.Append(nodeStr);
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if (nodeIndex + 1 < thisNodeCnt)
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_retval.Append('/');
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsLocalFile::SetRelativeDescriptor(nsILocalFile *fromFile, const nsACString& relativeDesc)
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{
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NS_NAMED_LITERAL_CSTRING(kParentDirStr, "../");
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nsCOMPtr<nsIFile> targetFile;
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nsresult rv = fromFile->Clone(getter_AddRefs(targetFile));
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if (NS_FAILED(rv))
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return rv;
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nsCString::const_iterator strBegin, strEnd;
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relativeDesc.BeginReading(strBegin);
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relativeDesc.EndReading(strEnd);
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nsCString::const_iterator nodeBegin(strBegin), nodeEnd(strEnd);
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nsCString::const_iterator pos(strBegin);
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nsCOMPtr<nsIFile> parentDir;
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while (FindInReadable(kParentDirStr, nodeBegin, nodeEnd)) {
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rv = targetFile->GetParent(getter_AddRefs(parentDir));
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if (NS_FAILED(rv))
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return rv;
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targetFile = parentDir;
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nodeBegin = nodeEnd;
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pos = nodeEnd;
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nodeEnd = strEnd;
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}
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nodeBegin = nodeEnd = pos;
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while (nodeEnd != strEnd) {
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FindCharInReadable('/', nodeEnd, strEnd);
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#ifdef XP_MAC
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nsCAutoString nodeString(Substring(nodeBegin, nodeEnd));
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nodeString.ReplaceSubstring(kESCSlashStr, kSlashStr);
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targetFile->Append(nodeString);
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#else
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targetFile->Append(Substring(nodeBegin, nodeEnd));
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#endif
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if (nodeEnd != strEnd) // If there's more left in the string, inc over the '/' nodeEnd is on.
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++nodeEnd;
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nodeBegin = nodeEnd;
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}
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nsCOMPtr<nsILocalFile> targetLocalFile(do_QueryInterface(targetFile));
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return InitWithFile(targetLocalFile);
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}
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#define GET_UTF8(func, result) \
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PR_BEGIN_MACRO \
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PRUnichar *buf = nsnull; \
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nsresult rv = (func)(&buf); \
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if (NS_FAILED(rv)) return rv; \
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result = NS_ConvertUCS2toUTF8(buf); \
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nsMemory::Free(buf); \
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PR_END_MACRO
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NS_IMETHODIMP
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nsLocalFile::Append(const nsACString &aNode)
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{
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if (aNode.IsEmpty() || FSCharsetIsUTF8() || IsASCII(aNode))
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return AppendNative(aNode);
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return AppendUnicode(NS_ConvertUTF8toUCS2(aNode).get());
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}
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NS_IMETHODIMP
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nsLocalFile::GetLeafName(nsACString &aLeafName)
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{
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if (FSCharsetIsUTF8() || LeafIsASCII())
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return GetNativeLeafName(aLeafName);
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GET_UTF8(GetUnicodeLeafName, aLeafName);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsLocalFile::SetLeafName(const nsACString &aLeafName)
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{
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if (aLeafName.IsEmpty() || FSCharsetIsUTF8() || IsASCII(aLeafName))
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return SetNativeLeafName(aLeafName);
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return SetUnicodeLeafName(NS_ConvertUTF8toUCS2(aLeafName).get());
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}
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NS_IMETHODIMP
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nsLocalFile::CopyTo(nsIFile *aNewParentDir, const nsACString &aNewName)
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{
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if (aNewName.IsEmpty() || FSCharsetIsUTF8() || IsASCII(aNewName))
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return CopyToNative(aNewParentDir, aNewName);
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return CopyToUnicode(aNewParentDir, NS_ConvertUTF8toUCS2(aNewName).get());
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}
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NS_IMETHODIMP
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nsLocalFile::CopyToFollowingLinks(nsIFile *aNewParentDir, const nsACString &aNewName)
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{
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if (aNewName.IsEmpty() || FSCharsetIsUTF8() || IsASCII(aNewName))
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return CopyToFollowingLinksNative(aNewParentDir, aNewName);
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return CopyToFollowingLinksUnicode(aNewParentDir, NS_ConvertUTF8toUCS2(aNewName).get());
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}
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NS_IMETHODIMP
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nsLocalFile::MoveTo(nsIFile *aNewParentDir, const nsACString &aNewName)
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{
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if (aNewName.IsEmpty() || FSCharsetIsUTF8() || IsASCII(aNewName))
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return MoveToNative(aNewParentDir, aNewName);
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return MoveToUnicode(aNewParentDir, NS_ConvertUTF8toUCS2(aNewName).get());
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}
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NS_IMETHODIMP
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nsLocalFile::GetTarget(nsACString &aTarget)
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{
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if (FSCharsetIsUTF8())
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return GetNativeTarget(aTarget);
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// XXX unfortunately, there is no way to know if the target will contain
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// non-ASCII characters until after we resolve it.
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GET_UTF8(GetUnicodeTarget, aTarget);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsLocalFile::GetPath(nsACString &aPath)
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{
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if (FSCharsetIsUTF8() || PathIsASCII())
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return GetNativePath(aPath);
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GET_UTF8(GetUnicodePath, aPath);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsLocalFile::InitWithPath(const nsACString &aPath)
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{
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if (aPath.IsEmpty() || FSCharsetIsUTF8() || IsASCII(aPath))
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return InitWithNativePath(aPath);
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return InitWithUnicodePath(NS_ConvertUTF8toUCS2(aPath).get());
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}
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NS_IMETHODIMP
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nsLocalFile::AppendRelativePath(const nsACString &aRelativePath)
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{
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if (aRelativePath.IsEmpty() || FSCharsetIsUTF8() || IsASCII(aRelativePath))
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return AppendRelativeNativePath(aRelativePath);
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return AppendRelativeUnicodePath(NS_ConvertUTF8toUCS2(aRelativePath).get());
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}
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nsresult
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NS_NewLocalFile(const nsACString &aPath, PRBool aFollowLinks, nsILocalFile **aResult)
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{
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if (aPath.IsEmpty() || nsLocalFile::FSCharsetIsUTF8() || IsASCII(aPath))
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return NS_NewNativeLocalFile(aPath, aFollowLinks, aResult);
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return NS_NewUnicodeLocalFile(NS_ConvertUTF8toUCS2(aPath).get(), aFollowLinks, aResult);
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}
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