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gecko-dev/xpcom/io/nsFileSpec.cpp

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#include "nsFileSpec.h"
#include "nsDebug.h"
#include "nsEscape.h"
#include "prtypes.h"
#include "plstr.h"
#include "plbase64.h"
#include "prmem.h"
#include <string.h>
#include <stdio.h>
//========================================================================================
// class nsSimpleCharString
//========================================================================================
//----------------------------------------------------------------------------------------
nsSimpleCharString::nsSimpleCharString()
//----------------------------------------------------------------------------------------
: mData(nsnull)
{
} // nsSimpleCharString::nsSimpleCharString
//----------------------------------------------------------------------------------------
nsSimpleCharString::nsSimpleCharString(const char* inString)
//----------------------------------------------------------------------------------------
: mData(nsnull)
{
if (inString)
CopyFrom(inString, nsCRT::strlen(inString));
} // nsSimpleCharString::nsSimpleCharString
//----------------------------------------------------------------------------------------
nsSimpleCharString::nsSimpleCharString(const nsString& inString)
//----------------------------------------------------------------------------------------
: mData(nsnull)
{
*this = inString;
} // nsSimpleCharString::nsSimpleCharString
//----------------------------------------------------------------------------------------
nsSimpleCharString::nsSimpleCharString(const nsSimpleCharString& inOther)
//----------------------------------------------------------------------------------------
{
mData = inOther.mData;
AddRefData();
} // nsSimpleCharString::nsSimpleCharString
//----------------------------------------------------------------------------------------
nsSimpleCharString::nsSimpleCharString(const char* inData, PRUint32 inLength)
//----------------------------------------------------------------------------------------
: mData(nsnull)
{
CopyFrom(inData, inLength);
} // nsSimpleCharString::nsSimpleCharString
//----------------------------------------------------------------------------------------
nsSimpleCharString::~nsSimpleCharString()
//----------------------------------------------------------------------------------------
{
ReleaseData();
} // nsSimpleCharString::nsSimpleCharString
//----------------------------------------------------------------------------------------
void nsSimpleCharString::operator = (const char* inString)
//----------------------------------------------------------------------------------------
{
if (inString)
CopyFrom(inString, nsCRT::strlen(inString));
else
SetToEmpty();
} // nsSimpleCharString::operator =
//----------------------------------------------------------------------------------------
void nsSimpleCharString::operator = (const nsString& inString)
//----------------------------------------------------------------------------------------
{
PRUint32 len = inString.Length();
ReallocData(len);
if (!mData)
return;
inString.ToCString(mData->mString, len + 1);
} // nsSimpleCharString::operator =
//----------------------------------------------------------------------------------------
void nsSimpleCharString::operator = (const nsSimpleCharString& inOther)
//----------------------------------------------------------------------------------------
{
if (mData == inOther.mData)
return;
ReleaseData();
mData = inOther.mData;
AddRefData();
} // nsSimpleCharString::operator =
//----------------------------------------------------------------------------------------
void nsSimpleCharString::operator += (const char* inOther)
//----------------------------------------------------------------------------------------
{
if (!inOther)
return;
int newLength = Length() + nsCRT::strlen(inOther);
ReallocData(newLength);
strcat(mData->mString, inOther);
} // nsSimpleCharString::operator =
//----------------------------------------------------------------------------------------
nsSimpleCharString nsSimpleCharString::operator + (const char* inOther) const
//----------------------------------------------------------------------------------------
{
nsSimpleCharString result(*this);
result += inOther;
return result;
} // nsSimpleCharString::operator =
//----------------------------------------------------------------------------------------
void nsSimpleCharString::Catenate(const char* inString1, const char* inString2)
//----------------------------------------------------------------------------------------
{
if (!inString2)
{
*this += inString1;
return;
}
int newLength = Length() + nsCRT::strlen(inString1) + nsCRT::strlen(inString2);
ReallocData(newLength);
strcat(mData->mString, inString1);
strcat(mData->mString, inString2);
} // nsSimpleCharString::operator =
//----------------------------------------------------------------------------------------
void nsSimpleCharString::CopyFrom(const char* inData, PRUint32 inLength)
//----------------------------------------------------------------------------------------
{
if (!inData)
return;
ReallocData(inLength);
if (!mData)
return;
nsCRT::memcpy(mData->mString, inData, inLength);
mData->mString[inLength] = '\0';
} // nsSimpleCharString::CopyFrom
//----------------------------------------------------------------------------------------
void nsSimpleCharString::SetToEmpty()
//----------------------------------------------------------------------------------------
{
ReleaseData();
} // nsSimpleCharString::SetToEmpty
//----------------------------------------------------------------------------------------
void nsSimpleCharString::Unescape()
//----------------------------------------------------------------------------------------
{
if (!mData)
return;
ReallocData(mData->mLength);
if (!mData)
return;
nsUnescape(mData->mString);
mData->mLength = nsCRT::strlen(mData->mString);
} // nsSimpleCharString::Unescape
//----------------------------------------------------------------------------------------
void nsSimpleCharString::AddRefData()
//----------------------------------------------------------------------------------------
{
if (mData)
++mData->mRefCount;
} // nsSimpleCharString::AddRefData
//----------------------------------------------------------------------------------------
void nsSimpleCharString::ReleaseData()
//----------------------------------------------------------------------------------------
{
if (!mData)
return;
NS_ASSERTION(mData->mRefCount > 0, "String deleted too many times!");
if (--mData->mRefCount == 0)
PR_Free(mData);
mData = nsnull;
} // nsSimpleCharString::ReleaseData
//----------------------------------------------------------------------------------------
inline PRUint32 CalculateAllocLength(PRUint32 logicalLength)
// Round up to the next multiple of 256.
//----------------------------------------------------------------------------------------
{
return ((1 + (logicalLength >> 8)) << 8);
}
//----------------------------------------------------------------------------------------
void nsSimpleCharString::ReallocData(PRUint32 inLength)
// Reallocate mData to a new length. Since this presumably precedes a change to the string,
// we want to detach ourselves if the data is shared by another string, even if the length
// requested would not otherwise require a reallocation.
//----------------------------------------------------------------------------------------
{
PRUint32 newAllocLength = CalculateAllocLength(inLength);
PRUint32 oldAllocLength = CalculateAllocLength(Length());
if (mData)
{
NS_ASSERTION(mData->mRefCount > 0, "String deleted too many times!");
if (mData->mRefCount == 1)
{
// We are the sole owner, so just change its length, if necessary.
if (newAllocLength > oldAllocLength)
mData = (Data*)PR_Realloc(mData, newAllocLength + sizeof(Data));
mData->mLength = inLength;
mData->mString[inLength] = '\0'; // we may be truncating
return;
}
}
PRUint32 copyLength = Length();
if (inLength < copyLength)
copyLength = inLength;
Data* newData = (Data*)PR_Malloc(newAllocLength + sizeof(Data));
// If data was already allocated when we get to here, then we are cloning the data
// from a shared pointer.
if (mData)
{
nsCRT::memcpy(newData, mData, sizeof(Data) + copyLength);
mData->mRefCount--; // Say goodbye
}
else
newData->mString[0] = '\0';
mData = newData;
mData->mRefCount = 1;
mData->mLength = inLength;
} // nsSimpleCharString::ReleaseData
//========================================================================================
NS_NAMESPACE nsFileSpecHelpers
//========================================================================================
{
enum
{ kMaxFilenameLength = 31 // should work on Macintosh, Unix, and Win32.
, kMaxAltDigitLength = 5
, kMaxCoreLeafNameLength = (kMaxFilenameLength - (kMaxAltDigitLength + 1))
};
#ifndef XP_MAC
NS_NAMESPACE_PROTOTYPE void Canonify(nsSimpleCharString& ioPath, PRBool inMakeDirs);
NS_NAMESPACE_PROTOTYPE void MakeAllDirectories(const char* inPath, int mode);
#endif
#ifdef XP_PC
NS_NAMESPACE_PROTOTYPE void NativeToUnix(nsSimpleCharString& ioPath);
NS_NAMESPACE_PROTOTYPE void UnixToNative(nsSimpleCharString& ioPath);
#endif
} NS_NAMESPACE_END
//----------------------------------------------------------------------------------------
nsresult ns_file_convert_result(PRInt32 nativeErr)
//----------------------------------------------------------------------------------------
{
return nativeErr ?
NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_FILES,((nativeErr)&0xFFFF))
: NS_OK;
}
//----------------------------------------------------------------------------------------
void nsSimpleCharString::LeafReplace(char inSeparator, const char* inLeafName)
//----------------------------------------------------------------------------------------
{
// Find the existing leaf name
if (IsEmpty())
return;
if (!inLeafName)
{
SetToEmpty();
return;
}
char* chars = mData->mString;
char* lastSeparator = strrchr(chars, inSeparator);
int oldLength = Length();
PRBool trailingSeparator = (lastSeparator + 1 == chars + oldLength);
if (trailingSeparator)
{
char savedCh = *lastSeparator;
char *savedLastSeparator = lastSeparator;
*lastSeparator = '\0';
lastSeparator = strrchr(chars, inSeparator);
*savedLastSeparator = savedCh;
}
if (lastSeparator)
lastSeparator++; // point at the trailing string
else
lastSeparator = chars; // the full monty
PRUint32 savedLastSeparatorOffset = (lastSeparator - chars);
int newLength =
(lastSeparator - chars) + nsCRT::strlen(inLeafName) + (trailingSeparator != 0);
ReallocData(newLength);
chars = mData->mString; // it might have moved.
chars[savedLastSeparatorOffset] = '\0'; // strip the current leaf name
strcat(chars, inLeafName);
if (trailingSeparator)
{
// If the original ended in a slash, then the new one should, too.
char sepStr[2] = "/";
*sepStr = inSeparator;
strcat(chars, sepStr);
}
} // nsSimpleCharString::LeafReplace
//----------------------------------------------------------------------------------------
char* nsSimpleCharString::GetLeaf(char inSeparator) const
// Returns a pointer to an allocated string representing the leaf.
//----------------------------------------------------------------------------------------
{
if (IsEmpty())
return nsnull;
char* chars = mData->mString;
const char* lastSeparator = strrchr(chars, inSeparator);
// If there was no separator, then return a copy of our path.
if (!lastSeparator)
return nsCRT::strdup(*this);
// So there's at least one separator. What's just after it?
// If the separator was not the last character, return the trailing string.
const char* leafPointer = lastSeparator + 1;
if (*leafPointer)
return nsCRT::strdup(leafPointer);
// So now, separator was the last character. Poke in a null instead.
*(char*)lastSeparator = '\0'; // Should use const_cast, but Unix has old compiler.
leafPointer = strrchr(chars, inSeparator);
char* result = leafPointer ? nsCRT::strdup(++leafPointer) : nsCRT::strdup(chars);
// Restore the poked null before returning.
*(char*)lastSeparator = inSeparator;
#ifdef XP_PC
// If it's a drive letter use the colon notation.
if (!leafPointer && result[2] == 0 && result[1] == '|')
result[1] = ':';
#endif
return result;
} // nsSimpleCharString::GetLeaf
#if defined(XP_UNIX) || defined(XP_PC)
//----------------------------------------------------------------------------------------
void nsFileSpecHelpers::MakeAllDirectories(const char* inPath, int mode)
// Make the path a valid one by creating all the intermediate directories. Does NOT
// make the leaf into a directory. This should be a unix path.
//----------------------------------------------------------------------------------------
{
if (!inPath)
return;
char* pathCopy = nsCRT::strdup( inPath );
if (!pathCopy)
return;
const char kSeparator = '/'; // I repeat: this should be a unix-style path.
const int kSkipFirst = 1;
#ifdef XP_PC
// Either this is a relative path, or we ensure that it has
// a drive letter specifier.
NS_ASSERTION( pathCopy[0] != '/' || pathCopy[2] == '|', "No drive letter!" );
#endif
char* currentStart = pathCopy;
char* currentEnd = strchr(currentStart + kSkipFirst, kSeparator);
if (currentEnd)
{
nsFileSpec spec;
*currentEnd = '\0';
#ifdef XP_PC
/*
if we have a drive letter path, we must make sure that the inital path has a '/' on it, or
Canonify will turn "/c|" into a path relative to the running executable.
*/
if (pathCopy[0] == '/' && pathCopy[2] == '|')
{
char* startDir = (char*)PR_Malloc(nsCRT::strlen(pathCopy) + 2);
strcpy(startDir, pathCopy);
strcat(startDir, "/");
spec = nsFilePath(startDir, PR_FALSE);
PR_Free(startDir);
}
else
{
spec = nsFilePath(pathCopy, PR_FALSE);
}
#else
spec = nsFilePath(pathCopy, PR_FALSE);
#endif
do
{
// If the node doesn't exist, and it is not the initial node in a full path,
// then make a directory (We cannot make the initial (volume) node).
if (!spec.Exists() && *currentStart != kSeparator)
spec.CreateDirectory(mode);
currentStart = ++currentEnd;
currentEnd = strchr(currentStart, kSeparator);
if (!currentEnd)
break;
*currentEnd = '\0';
spec += currentStart; // "lengthen" the path, adding the next node.
} while (currentEnd);
}
nsCRT::free(pathCopy);
} // nsFileSpecHelpers::MakeAllDirectories
#endif // XP_PC || XP_UNIX
#if defined(XP_PC)
#include "nsFileSpecWin.cpp" // Windows-specific implementations
#elif defined(XP_MAC)
#include "nsFileSpecMac.cpp" // Macintosh-specific implementations
#elif defined(XP_UNIX)
#include "nsFileSpecUnix.cpp" // Unix-specific implementations
#endif
//========================================================================================
// nsFileURL implementation
//========================================================================================
#ifndef XP_MAC
//----------------------------------------------------------------------------------------
nsFileURL::nsFileURL(const char* inString, PRBool inCreateDirs)
//----------------------------------------------------------------------------------------
{
if (!inString)
return;
NS_ASSERTION(strstr(inString, kFileURLPrefix) == inString, "Not a URL!");
// Make canonical and absolute. Since it's a parameter to this constructor,
// inString is escaped. We want to make an nsFilePath, which requires
// an unescaped string.
nsSimpleCharString unescapedPath(inString + kFileURLPrefixLength);
unescapedPath.Unescape();
nsFilePath path(unescapedPath, inCreateDirs);
*this = path;
} // nsFileURL::nsFileURL
#endif
#ifndef XP_MAC
//----------------------------------------------------------------------------------------
nsFileURL::nsFileURL(const nsString& inString, PRBool inCreateDirs)
//----------------------------------------------------------------------------------------
{
const nsAutoCString aString(inString);
const char* aCString = (const char*) aString;
if (!inString.Length())
return;
NS_ASSERTION(strstr(aCString, kFileURLPrefix) == aCString, "Not a URL!");
// Make canonical and absolute. Since it's a parameter to this constructor,
// inString is escaped. We want to make an nsFilePath, which requires
// an unescaped string.
nsSimpleCharString unescapedPath(aCString + kFileURLPrefixLength);
unescapedPath.Unescape();
nsFilePath path(unescapedPath, inCreateDirs);
*this = path;
} // nsFileURL::nsFileURL
#endif
//----------------------------------------------------------------------------------------
nsFileURL::nsFileURL(const nsFileURL& inOther)
//----------------------------------------------------------------------------------------
: mURL(inOther.mURL)
#ifdef XP_MAC
, mFileSpec(inOther.GetFileSpec())
#endif
{
} // nsFileURL::nsFileURL
#ifndef XP_MAC
//----------------------------------------------------------------------------------------
nsFileURL::nsFileURL(const nsFilePath& inOther)
//----------------------------------------------------------------------------------------
{
*this = inOther;
} // nsFileURL::nsFileURL
#endif
#ifndef XP_MAC
//----------------------------------------------------------------------------------------
nsFileURL::nsFileURL(const nsFileSpec& inOther)
//----------------------------------------------------------------------------------------
{
*this = inOther;
} // nsFileURL::nsFileURL
#endif
//----------------------------------------------------------------------------------------
nsFileURL::~nsFileURL()
//----------------------------------------------------------------------------------------
{
}
#ifndef XP_MAC
//----------------------------------------------------------------------------------------
void nsFileURL::operator = (const char* inString)
//----------------------------------------------------------------------------------------
{
mURL = inString;
NS_ASSERTION(strstr(inString, kFileURLPrefix) == inString, "Not a URL!");
} // nsFileURL::operator =
#endif
//----------------------------------------------------------------------------------------
void nsFileURL::operator +=(const char* inRelativeUnixPath)
//----------------------------------------------------------------------------------------
{
char* escapedPath = nsEscape(inRelativeUnixPath, url_Path);
mURL += escapedPath;
delete [] escapedPath;
#ifdef XP_MAC
mFileSpec += inRelativeUnixPath;
#endif
} // nsFileURL::operator +=
//----------------------------------------------------------------------------------------
nsFileURL nsFileURL::operator +(const char* inRelativeUnixPath) const
//----------------------------------------------------------------------------------------
{
nsFileURL result(*this);
result += inRelativeUnixPath;
return result;
} // nsFileURL::operator +
//----------------------------------------------------------------------------------------
void nsFileURL::operator = (const nsFileURL& inOther)
//----------------------------------------------------------------------------------------
{
mURL = inOther.mURL;
#ifdef XP_MAC
mFileSpec = inOther.GetFileSpec();
#endif
} // nsFileURL::operator =
#ifndef XP_MAC
//----------------------------------------------------------------------------------------
void nsFileURL::operator = (const nsFilePath& inOther)
//----------------------------------------------------------------------------------------
{
mURL = kFileURLPrefix;
char* original = (char*)(const char*)inOther; // we shall modify, but restore.
#ifdef XP_PC
// because we don't want to escape the '|' character, change it to a letter.
NS_ASSERTION(original[2] == '|', "No drive letter part!");
original[2] = 'x';
char* escapedPath = nsEscape(original, url_Path);
original[2] = '|'; // restore it
escapedPath[2] = '|';
#else
char* escapedPath = nsEscape(original, url_Path);
#endif
if (escapedPath)
mURL += escapedPath;
delete [] escapedPath;
} // nsFileURL::operator =
#endif
#ifndef XP_MAC
//----------------------------------------------------------------------------------------
void nsFileURL::operator = (const nsFileSpec& inOther)
//----------------------------------------------------------------------------------------
{
*this = nsFilePath(inOther);
if (mURL[mURL.Length() - 1] != '/' && inOther.IsDirectory())
mURL += "/";
} // nsFileURL::operator =
#endif
//========================================================================================
// nsFilePath implementation
//========================================================================================
//----------------------------------------------------------------------------------------
nsFilePath::nsFilePath(const nsFilePath& inPath)
//----------------------------------------------------------------------------------------
: mPath(inPath.mPath)
#ifdef XP_MAC
, mFileSpec(inPath.mFileSpec)
#endif
{
}
#ifndef XP_MAC
//----------------------------------------------------------------------------------------
nsFilePath::nsFilePath(const char* inString, PRBool inCreateDirs)
//----------------------------------------------------------------------------------------
: mPath(inString)
{
if (mPath.IsEmpty())
return;
NS_ASSERTION(strstr(inString, kFileURLPrefix) != inString, "URL passed as path");
#ifdef XP_PC
nsFileSpecHelpers::UnixToNative(mPath);
#endif
// Make canonical and absolute.
nsFileSpecHelpers::Canonify(mPath, inCreateDirs);
#ifdef XP_PC
NS_ASSERTION( mPath[1] == ':', "unexpected canonical path" );
nsFileSpecHelpers::NativeToUnix(mPath);
#endif
}
#endif
#ifndef XP_MAC
//----------------------------------------------------------------------------------------
nsFilePath::nsFilePath(const nsString& inString, PRBool inCreateDirs)
//----------------------------------------------------------------------------------------
: mPath(inString)
{
if (mPath.IsEmpty())
return;
NS_ASSERTION(strstr((const char*)mPath, kFileURLPrefix) != (const char*)mPath, "URL passed as path");
#ifdef XP_PC
nsFileSpecHelpers::UnixToNative(mPath);
#endif
// Make canonical and absolute.
nsFileSpecHelpers::Canonify(mPath, inCreateDirs);
#ifdef XP_PC
NS_ASSERTION( mPath[1] == ':', "unexpected canonical path" );
nsFileSpecHelpers::NativeToUnix(mPath);
#endif
}
#endif
#ifndef XP_MAC
//----------------------------------------------------------------------------------------
nsFilePath::nsFilePath(const nsFileURL& inOther)
//----------------------------------------------------------------------------------------
{
mPath = (const char*)inOther.mURL + kFileURLPrefixLength;
mPath.Unescape();
}
#endif
#ifdef XP_UNIX
//----------------------------------------------------------------------------------------
nsFilePath::nsFilePath(const nsFileSpec& inOther)
//----------------------------------------------------------------------------------------
: mPath(inOther.mPath)
{
}
#endif // XP_UNIX
//----------------------------------------------------------------------------------------
nsFilePath::~nsFilePath()
//----------------------------------------------------------------------------------------
{
}
#ifdef XP_UNIX
//----------------------------------------------------------------------------------------
void nsFilePath::operator = (const nsFileSpec& inOther)
//----------------------------------------------------------------------------------------
{
mPath = inOther.mPath;
}
#endif // XP_UNIX
#ifndef XP_MAC
//----------------------------------------------------------------------------------------
void nsFilePath::operator = (const char* inString)
//----------------------------------------------------------------------------------------
{
NS_ASSERTION(strstr(inString, kFileURLPrefix) != inString, "URL passed as path");
mPath = inString;
if (mPath.IsEmpty())
return;
#ifdef XP_PC
nsFileSpecHelpers::UnixToNative(mPath);
#endif
// Make canonical and absolute.
nsFileSpecHelpers::Canonify(mPath, PR_FALSE /* XXX? */);
#ifdef XP_PC
nsFileSpecHelpers::NativeToUnix(mPath);
#endif
}
#endif // XP_MAC
#ifndef XP_MAC
//----------------------------------------------------------------------------------------
void nsFilePath::operator = (const nsFileURL& inOther)
//----------------------------------------------------------------------------------------
{
mPath = (const char*)nsFilePath(inOther);
}
#endif
//----------------------------------------------------------------------------------------
void nsFilePath::operator = (const nsFilePath& inOther)
//----------------------------------------------------------------------------------------
{
mPath = inOther.mPath;
#ifdef XP_MAC
mFileSpec = inOther.GetFileSpec();
#endif
}
//----------------------------------------------------------------------------------------
void nsFilePath::operator +=(const char* inRelativeUnixPath)
//----------------------------------------------------------------------------------------
{
char* escapedPath = nsEscape(inRelativeUnixPath, url_Path);
mPath += escapedPath;
delete [] escapedPath;
#ifdef XP_MAC
mFileSpec += inRelativeUnixPath;
#endif
} // nsFilePath::operator +=
//----------------------------------------------------------------------------------------
nsFilePath nsFilePath::operator +(const char* inRelativeUnixPath) const
//----------------------------------------------------------------------------------------
{
nsFilePath result(*this);
result += inRelativeUnixPath;
return result;
} // nsFilePath::operator +
//========================================================================================
// nsFileSpec implementation
//========================================================================================
#ifndef XP_MAC
//----------------------------------------------------------------------------------------
nsFileSpec::nsFileSpec()
//----------------------------------------------------------------------------------------
: mError(NS_OK)
{
}
#endif
//----------------------------------------------------------------------------------------
nsFileSpec::nsFileSpec(const nsPersistentFileDescriptor& inDescriptor)
//----------------------------------------------------------------------------------------
{
*this = inDescriptor;
}
//----------------------------------------------------------------------------------------
nsFileSpec::nsFileSpec(const nsFileURL& inURL)
//----------------------------------------------------------------------------------------
{
*this = nsFilePath(inURL); // convert to unix path first
}
//----------------------------------------------------------------------------------------
void nsFileSpec::MakeUnique(const char* inSuggestedLeafName)
//----------------------------------------------------------------------------------------
{
if (inSuggestedLeafName && *inSuggestedLeafName)
SetLeafName(inSuggestedLeafName);
MakeUnique();
} // nsFileSpec::MakeUnique
//----------------------------------------------------------------------------------------
void nsFileSpec::MakeUnique()
//----------------------------------------------------------------------------------------
{
if (!Exists())
return;
char* leafName = GetLeafName();
if (!leafName)
return;
char* lastDot = strrchr(leafName, '.');
char* suffix = "";
if (lastDot)
{
suffix = nsCRT::strdup(lastDot); // include '.'
*lastDot = '\0'; // strip suffix and dot.
}
const int kMaxRootLength
= nsFileSpecHelpers::kMaxCoreLeafNameLength - nsCRT::strlen(suffix) - 1;
if ((int)nsCRT::strlen(leafName) > (int)kMaxRootLength)
leafName[kMaxRootLength] = '\0';
for (short index = 1; index < 1000 && Exists(); index++)
{
// start with "Picture-1.jpg" after "Picture.jpg" exists
char newName[nsFileSpecHelpers::kMaxFilenameLength + 1];
sprintf(newName, "%s-%d%s", leafName, index, suffix);
SetLeafName(newName);
}
if (*suffix)
nsCRT::free(suffix);
delete [] leafName;
} // nsFileSpec::MakeUnique
//----------------------------------------------------------------------------------------
void nsFileSpec::operator = (const nsFileURL& inURL)
//----------------------------------------------------------------------------------------
{
*this = nsFilePath(inURL); // convert to unix path first
}
//----------------------------------------------------------------------------------------
void nsFileSpec::operator = (const nsPersistentFileDescriptor& inDescriptor)
//----------------------------------------------------------------------------------------
{
nsSimpleCharString data;
PRInt32 dataSize;
inDescriptor.GetData(data, dataSize);
#ifdef XP_MAC
char* decodedData = PL_Base64Decode((const char*)data, (int)dataSize, nsnull);
// Cast to an alias record and resolve.
AliasHandle aliasH = nsnull;
mError = NS_FILE_RESULT(PtrToHand(decodedData, &(Handle)aliasH, (dataSize * 3) / 4));
PR_Free(decodedData);
if (NS_FAILED(mError))
return; // not enough memory?
Boolean changed;
mError = NS_FILE_RESULT(::ResolveAlias(nsnull, aliasH, &mSpec, &changed));
DisposeHandle((Handle) aliasH);
mPath.SetToEmpty();
#else
mPath = data;
mError = NS_OK;
#endif
}
//========================================================================================
// UNIX & WIN nsFileSpec implementation
//========================================================================================
#ifdef XP_UNIX
//----------------------------------------------------------------------------------------
nsFileSpec::nsFileSpec(const nsFilePath& inPath)
//----------------------------------------------------------------------------------------
: mPath((const char*)inPath)
, mError(NS_OK)
{
}
#endif // XP_UNIX
#ifdef XP_UNIX
//----------------------------------------------------------------------------------------
void nsFileSpec::operator = (const nsFilePath& inPath)
//----------------------------------------------------------------------------------------
{
mPath = (const char*)inPath;
mError = NS_OK;
}
#endif //XP_UNIX
#if defined(XP_UNIX) || defined(XP_PC)
//----------------------------------------------------------------------------------------
nsFileSpec::nsFileSpec(const nsFileSpec& inSpec)
//----------------------------------------------------------------------------------------
: mPath(inSpec.mPath)
, mError(NS_OK)
{
}
#endif //XP_UNIX
#if defined(XP_UNIX) || defined(XP_PC)
//----------------------------------------------------------------------------------------
nsFileSpec::nsFileSpec(const char* inString, PRBool inCreateDirs)
//----------------------------------------------------------------------------------------
: mPath(inString)
, mError(NS_OK)
{
// Make canonical and absolute.
nsFileSpecHelpers::Canonify(mPath, inCreateDirs);
}
#endif //XP_UNIX,PC
#if defined(XP_UNIX) || defined(XP_PC)
//----------------------------------------------------------------------------------------
nsFileSpec::nsFileSpec(const nsString& inString, PRBool inCreateDirs)
//----------------------------------------------------------------------------------------
: mPath(inString)
, mError(NS_OK)
{
// Make canonical and absolute.
nsFileSpecHelpers::Canonify(mPath, inCreateDirs);
}
#endif //XP_UNIX,PC
//----------------------------------------------------------------------------------------
nsFileSpec::~nsFileSpec()
//----------------------------------------------------------------------------------------
{
}
#if defined(XP_UNIX) || defined(XP_PC)
//----------------------------------------------------------------------------------------
void nsFileSpec::operator = (const nsFileSpec& inSpec)
//----------------------------------------------------------------------------------------
{
mPath = inSpec.mPath;
mError = inSpec.Error();
}
#endif //XP_UNIX
#if defined(XP_UNIX) || defined(XP_PC)
//----------------------------------------------------------------------------------------
void nsFileSpec::operator = (const char* inString)
//----------------------------------------------------------------------------------------
{
mPath = inString;
// Make canonical and absolute.
nsFileSpecHelpers::Canonify(mPath, PR_FALSE /* XXX? */);
mError = NS_OK;
}
#endif //XP_UNIX
//----------------------------------------------------------------------------------------
nsFileSpec nsFileSpec::operator + (const char* inRelativePath) const
//----------------------------------------------------------------------------------------
{
nsFileSpec result = *this;
result += inRelativePath;
return result;
} // nsFileSpec::operator +
//----------------------------------------------------------------------------------------
PRBool nsFileSpec::operator == (const nsFileSpec& inOther) const
//----------------------------------------------------------------------------------------
{
#ifdef XP_MAC
if ( inOther.mSpec.vRefNum == mSpec.vRefNum &&
inOther.mSpec.parID == mSpec.parID &&
EqualString(inOther.mSpec.name, mSpec.name, false, true))
return PR_TRUE;
#else
PRBool amEmpty = mPath.IsEmpty();
PRBool heEmpty = inOther.mPath.IsEmpty();
if (amEmpty) // we're the same if he's empty...
return heEmpty;
if (heEmpty) // ('cuz I'm not...)
return PR_FALSE;
#if defined(XP_PC)
// windows does not care about case.
if (_stricmp(mPath, inOther.mPath ) == 0)
return PR_TRUE;
#else
if (strcmp(mPath, inOther.mPath ) == 0)
return PR_TRUE;
#endif
#endif
return PR_FALSE;
}
//----------------------------------------------------------------------------------------
PRBool nsFileSpec::operator != (const nsFileSpec& inOther) const
//----------------------------------------------------------------------------------------
{
return (! (*this == inOther) );
}
#ifndef XP_MAC
//----------------------------------------------------------------------------------------
const char* nsFileSpec::GetCString() const
// This is the only automatic conversion to const char*
// that is provided, and it allows the
// path to be "passed" to NSPR file routines. This practice
// is VERY EVIL and should only be used to support legacy
// code. Using it guarantees bugs on Macintosh. The path is NOT allocated, so do
// not even think of deleting (or freeing) it.
//----------------------------------------------------------------------------------------
{
return mPath;
}
#endif
//========================================================================================
// class nsPersistentFileDescriptor
//========================================================================================
//----------------------------------------------------------------------------------------
nsPersistentFileDescriptor::nsPersistentFileDescriptor(const nsPersistentFileDescriptor& inDesc)
//----------------------------------------------------------------------------------------
: mDescriptorString(inDesc.mDescriptorString)
{
} // nsPersistentFileDescriptor::nsPersistentFileDescriptor
//----------------------------------------------------------------------------------------
void nsPersistentFileDescriptor::operator = (const nsPersistentFileDescriptor& inDesc)
//----------------------------------------------------------------------------------------
{
mDescriptorString = inDesc.mDescriptorString;
} // nsPersistentFileDescriptor::operator =
//----------------------------------------------------------------------------------------
nsPersistentFileDescriptor::nsPersistentFileDescriptor(const nsFileSpec& inSpec)
//----------------------------------------------------------------------------------------
{
*this = inSpec;
} // nsPersistentFileDescriptor::nsPersistentFileDescriptor
//----------------------------------------------------------------------------------------
void nsPersistentFileDescriptor::operator = (const nsFileSpec& inSpec)
//----------------------------------------------------------------------------------------
{
#ifdef XP_MAC
if (inSpec.Error())
return;
AliasHandle aliasH;
OSErr err = NewAlias(nil, inSpec.GetFSSpecPtr(), &aliasH);
if (err != noErr)
return;
PRUint32 bytes = GetHandleSize((Handle) aliasH);
HLock((Handle) aliasH);
char* buf = PL_Base64Encode((const char*)*aliasH, bytes, nsnull);
DisposeHandle((Handle) aliasH);
mDescriptorString = buf;
PR_Free(buf);
#else
mDescriptorString = inSpec.GetCString();
#endif // XP_MAC
} // nsPersistentFileDescriptor::operator =
//----------------------------------------------------------------------------------------
nsPersistentFileDescriptor::~nsPersistentFileDescriptor()
//----------------------------------------------------------------------------------------
{
} // nsPersistentFileDescriptor::~nsPersistentFileDescriptor
//----------------------------------------------------------------------------------------
void nsPersistentFileDescriptor::GetData(nsSimpleCharString& outData) const
//----------------------------------------------------------------------------------------
{
outData = mDescriptorString;
}
//----------------------------------------------------------------------------------------
void nsPersistentFileDescriptor::SetData(const nsSimpleCharString& inData)
//----------------------------------------------------------------------------------------
{
SetData(inData, inData.Length());
}
//----------------------------------------------------------------------------------------
void nsPersistentFileDescriptor::GetData(nsSimpleCharString& outData, PRInt32& outSize) const
//----------------------------------------------------------------------------------------
{
outSize = mDescriptorString.Length();
outData = mDescriptorString;
}
//----------------------------------------------------------------------------------------
void nsPersistentFileDescriptor::SetData(const nsSimpleCharString& inData, PRInt32 inSize)
//----------------------------------------------------------------------------------------
{
mDescriptorString.CopyFrom((const char*)inData, inSize);
}
//========================================================================================
// class nsAutoCString
//========================================================================================
//----------------------------------------------------------------------------------------
nsAutoCString::~nsAutoCString()
//----------------------------------------------------------------------------------------
{
delete [] (char*)mCString;
}
//========================================================================================
// class nsNSPRPath
//========================================================================================
//----------------------------------------------------------------------------------------
nsNSPRPath::operator const char*() const
// NSPR expects a UNIX path on unix and Macintosh, but a native path on windows. NSPR
// cannot be changed, so we have to do the dirty work.
//----------------------------------------------------------------------------------------
{
#ifdef XP_PC
if (!modifiedNSPRPath)
{
// If this is the first call, initialize modifiedNSPRPath. Start by cloning
// mFilePath, but strip the leading separator, if present
const char* unixPath = (const char*)mFilePath;
if (!unixPath)
return nsnull;
((nsNSPRPath*)this)->modifiedNSPRPath
= nsCRT::strdup(*unixPath == '/' ? unixPath + 1: unixPath);
// Replace the bar
if (modifiedNSPRPath[1] == '|')
modifiedNSPRPath[1] = ':';
// Remove the ending separator only if it is not the last separator
int len = nsCRT::strlen(modifiedNSPRPath);
if (modifiedNSPRPath[len - 1 ] == '/' && modifiedNSPRPath[len - 2 ] != ':')
modifiedNSPRPath[len - 1 ] = '\0';
}
return modifiedNSPRPath;
#else
return (const char*)mFilePath;
#endif
}
//----------------------------------------------------------------------------------------
nsNSPRPath::~nsNSPRPath()
//----------------------------------------------------------------------------------------
{
#ifdef XP_PC
if (modifiedNSPRPath)
nsCRT::free(modifiedNSPRPath);
#endif
}
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