зеркало из https://github.com/mozilla/gecko-dev.git
463 строки
16 KiB
C++
463 строки
16 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 License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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// This file is included by nsFileSpec.cp, and includes the Windows-specific
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// implementations.
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#include <sys/stat.h>
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#include <direct.h>
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#include <limits.h>
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#include <stdlib.h>
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#include "prio.h"
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#include "nsError.h"
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#include "windows.h"
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#ifdef UNICODE
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#define CreateDirectoryW CreateDirectory
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#else
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#define CreateDirectoryA CreateDirectory
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#endif
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//----------------------------------------------------------------------------------------
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void nsFileSpecHelpers::Canonify(nsSimpleCharString& ioPath, PRBool inMakeDirs)
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// Canonify, make absolute, and check whether directories exist. This
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// takes a (possibly relative) native path and converts it into a
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// fully qualified native path.
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//----------------------------------------------------------------------------------------
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{
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if (ioPath.IsEmpty())
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return;
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NS_ASSERTION(strchr((const char*)ioPath, '/') == 0,
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"This smells like a Unix path. Native path expected! "
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"Please fix.");
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if (inMakeDirs)
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{
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const int mode = 0700;
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nsSimpleCharString unixStylePath = ioPath;
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nsFileSpecHelpers::NativeToUnix(unixStylePath);
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nsFileSpecHelpers::MakeAllDirectories((const char*)unixStylePath, mode);
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}
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char buffer[_MAX_PATH];
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errno = 0;
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*buffer = '\0';
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char* canonicalPath = _fullpath(buffer, ioPath, _MAX_PATH);
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NS_ASSERTION( canonicalPath[0] != '\0', "Uh oh...couldn't convert" );
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if (canonicalPath[0] == '\0')
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return;
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ioPath = canonicalPath;
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} // nsFileSpecHelpers::Canonify
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//----------------------------------------------------------------------------------------
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void nsFileSpecHelpers::UnixToNative(nsSimpleCharString& ioPath)
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// This just does string manipulation. It doesn't check reality, or canonify, or
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// anything
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//----------------------------------------------------------------------------------------
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{
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// Allow for relative or absolute. We can do this in place, because the
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// native path is never longer.
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if (ioPath.IsEmpty())
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return;
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// Strip initial slash for an absolute path
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char* src = (char*)ioPath;
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if (*src == '/')
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{
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// Since it was an absolute path, check for the drive letter
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char* colonPointer = src + 2;
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if (strstr(src, "|/") == colonPointer)
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*colonPointer = ':';
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// allocate new string by copying from ioPath[1]
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nsSimpleCharString temp = src + 1;
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ioPath = temp;
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}
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src = (char*)ioPath;
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// Convert '/' to '\'.
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while (*++src)
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{
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if (*src == '/')
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*src = '\\';
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}
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} // nsFileSpecHelpers::UnixToNative
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//----------------------------------------------------------------------------------------
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void nsFileSpecHelpers::NativeToUnix(nsSimpleCharString& ioPath)
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// This just does string manipulation. It doesn't check reality, or canonify, or
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// anything. The unix path is longer, so we can't do it in place.
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//----------------------------------------------------------------------------------------
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{
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if (ioPath.IsEmpty())
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return;
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// Convert the drive-letter separator, if present
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nsSimpleCharString temp("/");
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char* cp = (char*)ioPath + 1;
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if (strstr(cp, ":\\") == cp)
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*cp = '|'; // absolute path
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else
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temp[0] = '\0'; // relative path
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// Convert '\' to '/'
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for (; *cp; cp++)
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{
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if (*cp == '\\')
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*cp = '/';
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}
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// Add the slash in front.
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temp += ioPath;
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ioPath = temp;
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}
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//----------------------------------------------------------------------------------------
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nsFileSpec::nsFileSpec(const nsFilePath& inPath)
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//----------------------------------------------------------------------------------------
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{
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*this = inPath;
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}
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//----------------------------------------------------------------------------------------
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void nsFileSpec::operator = (const nsFilePath& inPath)
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//----------------------------------------------------------------------------------------
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{
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mPath = (const char*)inPath;
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nsFileSpecHelpers::UnixToNative(mPath);
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mError = NS_OK;
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} // nsFileSpec::operator =
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//----------------------------------------------------------------------------------------
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nsFilePath::nsFilePath(const nsFileSpec& inSpec)
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//----------------------------------------------------------------------------------------
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{
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*this = inSpec;
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} // nsFilePath::nsFilePath
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//----------------------------------------------------------------------------------------
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void nsFilePath::operator = (const nsFileSpec& inSpec)
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//----------------------------------------------------------------------------------------
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{
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mPath = inSpec.mPath;
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nsFileSpecHelpers::NativeToUnix(mPath);
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} // nsFilePath::operator =
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//----------------------------------------------------------------------------------------
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void nsFileSpec::SetLeafName(const char* inLeafName)
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//----------------------------------------------------------------------------------------
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{
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mPath.LeafReplace('\\', inLeafName);
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} // nsFileSpec::SetLeafName
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//----------------------------------------------------------------------------------------
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char* nsFileSpec::GetLeafName() const
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//----------------------------------------------------------------------------------------
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{
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return mPath.GetLeaf('\\');
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} // nsFileSpec::GetLeafName
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//----------------------------------------------------------------------------------------
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PRBool nsFileSpec::Exists() const
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//----------------------------------------------------------------------------------------
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{
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struct stat st;
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return !mPath.IsEmpty() && 0 == stat(nsNSPRPath(*this), &st);
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} // nsFileSpec::Exists
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//----------------------------------------------------------------------------------------
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void nsFileSpec::GetModDate(TimeStamp& outStamp) const
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//----------------------------------------------------------------------------------------
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{
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struct stat st;
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if (!mPath.IsEmpty() && stat(nsNSPRPath(*this), &st) == 0)
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outStamp = st.st_mtime;
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else
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outStamp = 0;
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} // nsFileSpec::GetModDate
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//----------------------------------------------------------------------------------------
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PRUint32 nsFileSpec::GetFileSize() const
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//----------------------------------------------------------------------------------------
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{
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struct stat st;
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if (!mPath.IsEmpty() && stat(nsNSPRPath(*this), &st) == 0)
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return (PRUint32)st.st_size;
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return 0;
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} // nsFileSpec::GetFileSize
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//----------------------------------------------------------------------------------------
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PRBool nsFileSpec::IsFile() const
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//----------------------------------------------------------------------------------------
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{
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struct stat st;
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return !mPath.IsEmpty() && 0 == stat(nsNSPRPath(*this), &st) && (_S_IFREG & st.st_mode);
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} // nsFileSpec::IsFile
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//----------------------------------------------------------------------------------------
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PRBool nsFileSpec::IsDirectory() const
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//----------------------------------------------------------------------------------------
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{
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struct stat st;
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return !mPath.IsEmpty() && 0 == stat(nsNSPRPath(*this), &st) && (_S_IFDIR & st.st_mode);
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} // nsFileSpec::IsDirectory
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//----------------------------------------------------------------------------------------
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void nsFileSpec::GetParent(nsFileSpec& outSpec) const
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//----------------------------------------------------------------------------------------
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{
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outSpec.mPath = mPath;
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char* chars = (char*)outSpec.mPath;
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chars[outSpec.mPath.Length() - 1] = '\0'; // avoid trailing separator, if any
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char* cp = strrchr(chars, '\\');
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if (cp++)
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outSpec.mPath.SetLength(cp - chars); // truncate.
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} // nsFileSpec::GetParent
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//----------------------------------------------------------------------------------------
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void nsFileSpec::operator += (const char* inRelativePath)
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//----------------------------------------------------------------------------------------
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{
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if (!inRelativePath || mPath.IsEmpty())
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return;
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if (mPath[mPath.Length() - 1] == '\\')
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mPath += "x";
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else
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mPath += "\\x";
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// If it's a (unix) relative path, make it native
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nsSimpleCharString dosPath = inRelativePath;
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nsFileSpecHelpers::UnixToNative(dosPath);
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SetLeafName(dosPath);
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} // nsFileSpec::operator +=
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//----------------------------------------------------------------------------------------
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void nsFileSpec::CreateDirectory(int /*mode*/)
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//----------------------------------------------------------------------------------------
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{
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// Note that mPath is canonical!
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if (!mPath.IsEmpty())
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mkdir(nsNSPRPath(*this));
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} // nsFileSpec::CreateDirectory
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//----------------------------------------------------------------------------------------
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void nsFileSpec::Delete(PRBool inRecursive) const
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//----------------------------------------------------------------------------------------
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{
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if (IsDirectory())
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{
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if (inRecursive)
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{
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for (nsDirectoryIterator i(*this); i.Exists(); i++)
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{
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nsFileSpec& child = (nsFileSpec&)i;
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child.Delete(inRecursive);
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}
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}
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rmdir(nsNSPRPath(*this));
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}
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else if (!mPath.IsEmpty())
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{
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remove(nsNSPRPath(*this));
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}
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} // nsFileSpec::Delete
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//----------------------------------------------------------------------------------------
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nsresult nsFileSpec::Rename(const char* inNewName)
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//----------------------------------------------------------------------------------------
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{
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// This function should not be used to move a file on disk.
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if (strchr(inNewName, '/'))
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return NS_FILE_FAILURE;
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char* oldPath = nsCRT::strdup(mPath);
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SetLeafName(inNewName);
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if (PR_Rename(oldPath, mPath) != NS_OK)
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{
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// Could not rename, set back to the original.
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mPath = oldPath;
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return NS_FILE_FAILURE;
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}
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nsCRT::free(oldPath);
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return NS_OK;
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} // nsFileSpec::Rename
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//----------------------------------------------------------------------------------------
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nsresult nsFileSpec::Copy(const nsFileSpec& inParentDirectory) const
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//----------------------------------------------------------------------------------------
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{
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// We can only copy into a directory, and (for now) can not copy entire directories
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if (inParentDirectory.IsDirectory() && (! IsDirectory() ) )
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{
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char *leafname = GetLeafName();
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nsSimpleCharString destPath(inParentDirectory.GetCString());
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destPath += "\\";
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destPath += leafname;
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nsCRT::free(leafname);
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// CopyFile returns non-zero if succeeds
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int copyOK = CopyFile(GetCString(), destPath, PR_TRUE);
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if (copyOK)
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return NS_OK;
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}
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return NS_FILE_FAILURE;
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} // nsFileSpec::Copy
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//----------------------------------------------------------------------------------------
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nsresult nsFileSpec::Move(const nsFileSpec& inNewParentDirectory)
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//----------------------------------------------------------------------------------------
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{
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// We can only copy into a directory, and (for now) can not copy entire directories
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if (inNewParentDirectory.IsDirectory() && (! IsDirectory() ) )
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{
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char *leafname = GetLeafName();
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nsSimpleCharString destPath(inNewParentDirectory.GetCString());
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destPath += "\\";
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destPath += leafname;
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nsCRT::free(leafname);
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// MoveFile returns non-zero if succeeds
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int copyOK = MoveFile(GetCString(), destPath);
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if (copyOK)
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{
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*this = inNewParentDirectory + GetLeafName();
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return NS_OK;
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}
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delete [] destPath;
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}
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return NS_FILE_FAILURE;
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} // nsFileSpec::Move
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//----------------------------------------------------------------------------------------
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nsresult nsFileSpec::Execute(const char* inArgs ) const
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//----------------------------------------------------------------------------------------
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{
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if (!IsDirectory())
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{
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nsSimpleCharString fileNameWithArgs = mPath + " " + inArgs;
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int execResult = WinExec( fileNameWithArgs, SW_NORMAL );
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if (execResult > 31)
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return NS_OK;
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}
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return NS_FILE_FAILURE;
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} // nsFileSpec::Execute
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//----------------------------------------------------------------------------------------
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PRUint32 nsFileSpec::GetDiskSpaceAvailable() const
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//----------------------------------------------------------------------------------------
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{
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char aDrive[_MAX_DRIVE + 2];
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_splitpath( (const char*)mPath, aDrive, NULL, NULL, NULL);
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if (aDrive[0] == '\0')
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{
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// The back end is always trying to pass us paths that look
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// like /c|/netscape/mail. See if we've got one of them
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if (mPath.Length() > 2 && mPath[0] == '/' && mPath[2] == '|')
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{
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aDrive[0] = mPath[1];
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aDrive[1] = ':';
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aDrive[2] = '\0';
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}
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else
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{
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// Return bogus large number and hope for the best
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return ULONG_MAX;
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}
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}
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strcat(aDrive, "\\");
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DWORD dwSectorsPerCluster = 0;
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DWORD dwBytesPerSector = 0;
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DWORD dwFreeClusters = 0;
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DWORD dwTotalClusters = 0;
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if (!GetDiskFreeSpace(aDrive,
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&dwSectorsPerCluster,
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&dwBytesPerSector,
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&dwFreeClusters,
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&dwTotalClusters))
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{
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return ULONG_MAX; // Return bogus large number and hope for the best
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}
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// We can now figure free disk space.
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return dwFreeClusters * dwSectorsPerCluster * dwBytesPerSector;
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} // nsFileSpec::GetDiskSpaceAvailable()
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//========================================================================================
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// nsDirectoryIterator
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//========================================================================================
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//----------------------------------------------------------------------------------------
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nsDirectoryIterator::nsDirectoryIterator(
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const nsFileSpec& inDirectory
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, int inIterateDirection)
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//----------------------------------------------------------------------------------------
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: mCurrent(inDirectory)
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, mDir(nsnull)
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, mExists(PR_FALSE)
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{
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mDir = PR_OpenDir(inDirectory);
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mCurrent += "dummy";
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++(*this);
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} // nsDirectoryIterator::nsDirectoryIterator
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//----------------------------------------------------------------------------------------
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nsDirectoryIterator::~nsDirectoryIterator()
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//----------------------------------------------------------------------------------------
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{
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if (mDir)
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PR_CloseDir(mDir);
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} // nsDirectoryIterator::nsDirectoryIterator
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//----------------------------------------------------------------------------------------
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nsDirectoryIterator& nsDirectoryIterator::operator ++ ()
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//----------------------------------------------------------------------------------------
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{
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mExists = PR_FALSE;
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if (!mDir)
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return *this;
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PRDirEntry* entry = PR_ReadDir(mDir, PR_SKIP_BOTH); // Ignore '.' && '..'
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if (entry)
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{
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mExists = PR_TRUE;
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mCurrent.SetLeafName(entry->name);
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}
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return *this;
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} // nsDirectoryIterator::operator ++
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//----------------------------------------------------------------------------------------
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nsDirectoryIterator& nsDirectoryIterator::operator -- ()
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//----------------------------------------------------------------------------------------
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{
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return ++(*this); // can't do it backwards.
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} // nsDirectoryIterator::operator --
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