hxxfile.cpp
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上传日期:2007-06-06
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- /* ***** BEGIN LICENSE BLOCK *****
- * Version: RCSL 1.0/RPSL 1.0
- *
- * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file, are
- * subject to the current version of the RealNetworks Public Source License
- * Version 1.0 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the RealNetworks Community Source License Version 1.0
- * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl,
- * in which case the RCSL will apply. You may also obtain the license terms
- * directly from RealNetworks. You may not use this file except in
- * compliance with the RPSL or, if you have a valid RCSL with RealNetworks
- * applicable to this file, the RCSL. Please see the applicable RPSL or
- * RCSL for the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the portions
- * it created.
- *
- * This file, and the files included with this file, is distributed and made
- * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- #include "hxtypes.h"
- #include "hxstrutl.h"
- #include "hxxfile.h"
- #include "hlxclib/string.h"
- #include "hlxclib/limits.h"
- #include <ctype.h>
- #include "hxheap.h"
- #ifdef _DEBUG
- #undef HX_THIS_FILE
- static const char HX_THIS_FILE[] = __FILE__;
- #endif
- #if defined(_MAC_UNIX) || defined(_CARBON)
- #include "platform/mac/fullpathname.h"
- #include "filespecutils.h" // for an assert in GetReasonableLocalFileName
- #endif
- #if defined _UNIX && !defined __QNXNTO__
- void strlwr(char*);
- #endif
- /////////////////////////////////////////////////////////////////////////////
- //
- // Method:
- //
- // GetReasonableLocalFileName()
- //
- // Purpose:
- //
- // Converts some file URLs to reasonable file names.
- //
- // Parameters:
- //
- // CHXString& fileName
- // File reference or URL to convert to reasonable local file name.
- //
- // Return:
- //
- // None.
- //
- void HXXFile::GetReasonableLocalFileName(CHXString& fileName)
- {
- #if defined(_MAC_UNIX) || defined(_CARBON)
- #ifdef _DEBUG
- CHXString debugSaveURL = (const char*) fileName;
- #endif
-
- (void) PathFromURL(fileName, fileName);
- #ifdef _DEBUG
- if (!CHXFileSpecUtils::FileExists(fileName))
- {
- CHXString msg;
- msg.Format("GetReasonableLocalFileName is returning invalid path '%s' given URL '%s'",
- (const char*) fileName, (const char*) debugSaveURL);
- CFStringRef ref = CFStringCreateWithCString(nil, (const char*)msg, kCFStringEncodingUTF8);
- CFShowStr(ref);
- CFRelease(ref);
- }
- #endif // _DEBUG
- return;
-
- #endif
- // Trim off any leading and trailing spaces...
- // Oooh... those pesky QA folks!
- fileName.TrimLeft();
- fileName.TrimRight();
- char szProtocol[6]; /* Flawfinder: ignore */
- strncpy(szProtocol,(const char*)fileName,5); /* Flawfinder: ignore */
- szProtocol[5] = ' ';
- strlwr(szProtocol);
-
- if (strncasecmp(szProtocol,"file:",5) == 0)
- {
- fileName = fileName.Mid(5);
- // Get this, sometimes, Netscape actually puts three whacks!
- // now that's whacky. <g>
- // That's because the third one is the leading slash on
- // an absolute path, don't strip the damn thing off!
- #if !defined(_UNIX) && !defined(_OPENWAVE)
- // This first case looks for 4 whacks meaning it is a UNC path on Windows should fail on Mac and UNIX
- if (fileName.Left(4) == "////")
- {
- fileName = fileName.Mid(2);
- }
- // This case occurs if the drive letter is present such as file:///G|/windows/test.rm
- else if (fileName.Left(3) == "///")
- {
- fileName = fileName.Mid(3);
- }
- // trim off those damn double whacks as well
- else
- #endif
- if (fileName.Left(2) == "//")
- {
- fileName = fileName.Mid(2);
- }
- }
- //////////////////////////////////////////////////////
- // Replace all directory markers with correct platform
- // specific directory markers!
- //
- #if defined (_MACINTOSH) || defined (_WINDOWS)
- int nFoundAt = 0;
- do
- {
- nFoundAt = fileName.Find('/');
- if (nFoundAt != -1)
- {
- #ifdef _MACINTOSH
- fileName.SetAt(nFoundAt,':');
- #else
- fileName.SetAt(nFoundAt,'\');
- #endif
- }
- }
- while(nFoundAt != -1);
- #endif
- #if defined (_UNIX)
- int nFoundAt = 0;
- do
- {
- nFoundAt = fileName.Find('\');
- if (nFoundAt != -1)
- {
- fileName.SetAt(nFoundAt,'/');
- }
- }
- while(nFoundAt != -1);
- #endif
- //////////////////////////////////////////////////////
- // Replace all drive markers with correct platform
- // specific drive markers!
- //
- #if defined (_WINDOWS)
- nFoundAt = 0;
- do
- {
- nFoundAt = fileName.Find('|');
- if (nFoundAt != -1)
- {
- fileName.SetAt(nFoundAt,':');
- }
- }
- while(nFoundAt != -1);
- #endif
- }
- BOOL HXXFile::IsPlusURL(const char* pURL)
- {
- CHXString strURL = pURL;
-
- // quick short-circuit: if there's no +, it's not a plus URL
- if (-1 == strURL.Find('+')) return FALSE;
- int nSep = 0;
- CHXString strFileName;
- // trim off the options from the URL
- nSep = strURL.ReverseFind('?');
- if (nSep >= 0)
- {
- strURL = strURL.Left(nSep);
- }
- GetReasonableLocalFileName(strURL);
- // trim off relative path if there is
- #if defined (_MACINTOSH)
- nSep = strURL.ReverseFind(':');
- #elif defined (_WINDOWS)
- nSep = strURL.ReverseFind('\');
- #else
- nSep = strURL.ReverseFind('/');
- #endif
- strFileName = strURL.Right(strURL.GetLength() - nSep - 1);
- // if the '+' is after the '.', then we say this is a plus URL
- int nPlusSign = strFileName.ReverseFind('+');
- if (nPlusSign >= 0 && nPlusSign > strFileName.Find('.'))
- {
- return TRUE;
- }
- return FALSE;
- }
- ULONG32 HXXFile::GetFileLength(FILE* in)
- {
- #ifdef _OPENWAVE
- HX_ASSERT(!"HXXFile::GetFileLength() not implemented!");
- return 0;
- #else
- ULONG32 was;
- ULONG32 length;
- was = ftell(in);
- fseek(in, 0, 2);
- length = ftell(in);
- fseek(in, was, 0);
- return length;
- #endif /* _OPENWAVE */
- }
- BOOL HXXFile::FindAndReplaceInFile
- (
- CHXString& fileNameIn,
- CHXString& fileNameOut,
- const char* pFind,
- const char* pReplace
- )
- {
- #ifdef _OPENWAVE
- HX_ASSERT(!"HXXFile::FindAndReplaceInFile() not implemented!");
- return FALSE;
- #else
- CHXString strFileContents;
- char* pFileContents = NULL;
- FILE* fileIn = NULL;
- FILE* fileOut = NULL;
- BOOL bTheResult = FALSE;
- ULONG32 length = 0;
- GetReasonableLocalFileName(fileNameIn);
- GetReasonableLocalFileName(fileNameOut);
- // First read the entire file in...
- fileIn=fopen(fileNameIn,"rb");
- if (fileIn==NULL) goto CleanUp;
- // determine the file length
- length = GetFileLength(fileIn);
-
- HX_ASSERT(length < INT_MAX);
- // get a buffer large enough for a zero terminated string.
- pFileContents = strFileContents.GetBuffer((int)(length+1));
- if (!pFileContents) goto CleanUp;
- // actually read the file in...
- fread(pFileContents,1,(int)length,fileIn);
-
- // set last byte to 0 as not to leave trailing characters at the end.
- pFileContents[length]=0;
-
- // We're done with the static buffer...
- strFileContents.ReleaseBuffer();
- // Actually let CHXString do all the work...
- strFileContents.FindAndReplace(pFind,pReplace);
- // After replacing the string, write the entire file out...
- fileOut=fopen(fileNameOut,"wb");
- if (fileOut==NULL) goto CleanUp;
- fwrite((const char *)strFileContents,1,strFileContents.GetLength(),fileOut);
- // If we made it this far then we are cool!
- bTheResult = TRUE;
- CleanUp:
- if (fileIn != NULL) fclose(fileIn);
- if (fileOut != NULL) fclose(fileOut);
- return(bTheResult);
- #endif /* _OPENWAVE */
- }
- void HXXFile::ExtractFileAndPath(const char* pFullPath, char* pFileName, UINT32 ulFileNameBufLen,
- char* pPath, UINT32 ulPathBufLen)
- {
- #ifdef _MACINTOSH
- UCHAR delim = ':';
- #elif defined(_WINDOWS)
- UCHAR delim = '\';
- #else
- UCHAR delim = '/';
- #endif
- CHXString strPath = pFullPath;
- CHXString strFile;
- int nEndOfPath = strPath.ReverseFind(delim);
- if (nEndOfPath != -1)
- {
- strFile = strPath.Mid(nEndOfPath+1);
- #ifndef _MACINTOSH
- strPath = strPath.Left(nEndOfPath);
- #else
- // on the Mac, let's have the : at the end to ensure
- // it's taken as a directory (otherwise a hard drive name,
- // with no colon, becomes a relative path)
- strPath = strPath.Left(nEndOfPath+1);
- #endif
- }
- SafeStrCpy(pPath,strPath, ulPathBufLen);
- SafeStrCpy(pFileName,strFile, ulFileNameBufLen);
- }
- /////////////////////////////////////////////////////////////////////////////
- //
- // Method:
- //
- // ConvertHexCodesToChars()
- //
- // Purpose:
- //
- // Converts a string containing %XX hex character codes into.
- // actual characters. (For instance, "%20" will be changed to
- // " ".) This is useful for URLs that contain non-alphanumeric
- // characters that have been converted to hex-codes.
- //
- // Parameters:
- //
- // CHXString& fileName
- // File reference or URL to convert.
- //
- // Return:
- //
- // BOOL - true if successful, false if bad input or out of mem.
- //
- BOOL HXXFile::ConvertHexCodesToChars(CHXString& fileName)
- {
- char* c = NULL;
- char* cBase = NULL;
- char* pTemp = NULL;
- char* pStop = NULL;
- BOOL bOk = FALSE;
- long lVal = 0;
- int nLen = 0;
- char hex[3]; /* Flawfinder: ignore */
-
- fileName.TrimLeft();
- fileName.TrimRight();
- // for doing string copies
- nLen = fileName.GetLength();
- pTemp = new char[nLen];
- if (!pTemp)
- {
- return FALSE;
- }
-
- cBase = c = fileName.GetBuffer(0);
- if (!c)
- {
- goto cleanup;
- }
-
- // init our temp array used for hex conversions
- memset(hex, 0, sizeof(char) * 3);
-
- // look for the first hex code
- c = strchr(c, '%');
- while (c)
- {
- // make sure we have enough buffer
- if (c[1] && c[2])
- {
- if (isxdigit(c[1]) && isxdigit(c[2]))
- {
- // hex convert two digits
- strncpy(hex, &(c[1]), 2); /* Flawfinder: ignore */
- lVal = strtol(hex, &pStop, 16);
-
- // replace the '%' with the actual char, then
- // shift the array down
- c[0] = (char)(lVal & 0xFF);
- SafeStrCpy(pTemp, &(c[3]), nLen);
- SafeStrCpy(&c[1], pTemp, nLen - (c+1-cBase));
- }
- }
- else
- {
- // out of chars, so quit
- break;
- }
-
- c++;
- c = strchr(c, '%');
- }
-
- cleanup:
- fileName.ReleaseBuffer();
- if (pTemp)
- {
- HX_VECTOR_DELETE(pTemp);
- }
-
- return bOk;
- }