/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- * * 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. */ // This file is included by nsFileSpec.cpp, and includes the Unix-specific // implementations. #include #include #include #include #include #include #include "nsError.h" //---------------------------------------------------------------------------------------- void nsFileSpecHelpers::Canonify(char*& ioPath, PRBool inMakeDirs) // Canonify, make absolute, and check whether directories exist //---------------------------------------------------------------------------------------- { if (!ioPath) return; if (inMakeDirs) { const mode_t mode = 0700; nsFileSpecHelpers::MakeAllDirectories(ioPath, mode); } char buffer[MAXPATHLEN]; errno = 0; *buffer = '\0'; char* canonicalPath = realpath(ioPath, buffer); if (!canonicalPath) { // Linux's realpath() is pathetically buggy. If the reason for the nil // result is just that the leaf does not exist, strip the leaf off, // process that, and then add the leaf back. char* allButLeaf = nsFileSpecHelpers::StringDup(ioPath); if (!allButLeaf) return; char* lastSeparator = strrchr(allButLeaf, '/'); if (lastSeparator) { *lastSeparator = '\0'; canonicalPath = realpath(allButLeaf, buffer); strcat(buffer, "/"); // Add back the leaf strcat(buffer, ++lastSeparator); } delete [] allButLeaf; } if (!canonicalPath && *ioPath != '/' && !inMakeDirs) { // Well, if it's a relative path, hack it ourselves. canonicalPath = realpath(".", buffer); if (canonicalPath) { strcat(canonicalPath, "/"); strcat(canonicalPath, ioPath); } } if (canonicalPath) nsFileSpecHelpers::StringAssign(ioPath, canonicalPath); } // nsFileSpecHelpers::Canonify //---------------------------------------------------------------------------------------- void nsFileSpec::SetLeafName(const char* inLeafName) //---------------------------------------------------------------------------------------- { nsFileSpecHelpers::LeafReplace(mPath, '/', inLeafName); } // nsFileSpec::SetLeafName //---------------------------------------------------------------------------------------- char* nsFileSpec::GetLeafName() const //---------------------------------------------------------------------------------------- { return nsFileSpecHelpers::GetLeaf(mPath, '/'); } // nsFileSpec::GetLeafName //---------------------------------------------------------------------------------------- PRBool nsFileSpec::Exists() const //---------------------------------------------------------------------------------------- { struct stat st; return 0 == stat(mPath, &st); } // nsFileSpec::Exists //---------------------------------------------------------------------------------------- PRBool nsFileSpec::IsFile() const //---------------------------------------------------------------------------------------- { struct stat st; return 0 == stat(mPath, &st) && S_ISREG(st.st_mode); } // nsFileSpec::IsFile //---------------------------------------------------------------------------------------- PRBool nsFileSpec::IsDirectory() const //---------------------------------------------------------------------------------------- { struct stat st; return 0 == stat(mPath, &st) && S_ISDIR(st.st_mode); } // nsFileSpec::IsDirectory //---------------------------------------------------------------------------------------- void nsFileSpec::GetParent(nsFileSpec& outSpec) const //---------------------------------------------------------------------------------------- { nsFileSpecHelpers::StringAssign(outSpec.mPath, mPath); char* cp = strrchr(outSpec.mPath, '/'); if (cp) *cp = '\0'; } // nsFileSpec::GetParent //---------------------------------------------------------------------------------------- void nsFileSpec::operator += (const char* inRelativePath) //---------------------------------------------------------------------------------------- { if (!inRelativePath || !mPath) return; char endChar = mPath[strlen(mPath) - 1]; if (endChar == '/') nsFileSpecHelpers::ReallocCat(mPath, "x"); else nsFileSpecHelpers::ReallocCat(mPath, "/x"); SetLeafName(inRelativePath); } // nsFileSpec::operator += //---------------------------------------------------------------------------------------- void nsFileSpec::CreateDirectory(int mode) //---------------------------------------------------------------------------------------- { // Note that mPath is canonical! mkdir(mPath, mode); } // nsFileSpec::CreateDirectory //---------------------------------------------------------------------------------------- void nsFileSpec::Delete(PRBool inRecursive) // To check if this worked, call Exists() afterwards, see? //---------------------------------------------------------------------------------------- { if (IsDirectory()) { if (inRecursive) { for (nsDirectoryIterator i(*this); i.Exists(); i++) { nsFileSpec& child = (nsFileSpec&)i; child.Delete(inRecursive); } } rmdir(mPath); } else remove(mPath); } // nsFileSpec::Delete //---------------------------------------------------------------------------------------- nsresult nsFileSpec::Rename(const char* inNewName) //---------------------------------------------------------------------------------------- { // This function should not be used to move a file on disk. if (strchr(inNewName, '/')) return NS_FILE_FAILURE; if (PR_Rename(mPath, inNewName) != 0) { return NS_FILE_FAILURE; } SetLeafName(inNewName); return NS_OK; } // nsFileSpec::Rename static int CrudeFileCopy(const char* in, const char* out) { struct stat in_stat; int stat_result = -1; char buf [1024]; FILE *ifp, *ofp; int rbytes, wbytes; if (!in || !out) return -1; stat_result = stat (in, &in_stat); ifp = fopen (in, "r"); if (!ifp) { return -1; } ofp = fopen (out, "w"); if (!ofp) { fclose (ifp); return -1; } while ((rbytes = fread (buf, 1, sizeof(buf), ifp)) > 0) { while (rbytes > 0) { if ( (wbytes = fwrite (buf, 1, rbytes, ofp)) < 0 ) { fclose (ofp); fclose (ifp); unlink(out); return -1; } rbytes -= wbytes; } } fclose (ofp); fclose (ifp); if (stat_result == 0) { chmod (out, in_stat.st_mode & 0777); } return 0; } // nsFileSpec::Rename //---------------------------------------------------------------------------------------- nsresult nsFileSpec::Copy(const nsFileSpec& inParentDirectory) const //---------------------------------------------------------------------------------------- { // We can only copy into a directory, and (for now) can not copy entire directories nsresult result = NS_FILE_FAILURE; if (inParentDirectory.IsDirectory() && (! IsDirectory() ) ) { char *leafname = GetLeafName(); char* destPath = nsFileSpecHelpers::StringDup(inParentDirectory, ( strlen(inParentDirectory) + 1 + strlen(leafname) ) ); strcat(destPath, "/"); strcat(destPath, leafname); delete [] leafname; result = NS_FILE_RESULT(CrudeFileCopy(*this, destPath)); delete [] destPath; } return result; } // nsFileSpec::Copy //---------------------------------------------------------------------------------------- nsresult nsFileSpec::Move(const nsFileSpec& inNewParentDirectory) const //---------------------------------------------------------------------------------------- { // We can only copy into a directory, and (for now) can not copy entire directories nsresult result = NS_FILE_FAILURE; if (inNewParentDirectory.IsDirectory() && (! IsDirectory() ) ) { char *leafname = GetLeafName(); char* destPath = nsFileSpecHelpers::StringDup( inNewParentDirectory, strlen(inNewParentDirectory) + 1 + strlen(leafname)); strcat(destPath, "/"); strcat(destPath, leafname); delete [] leafname; result = NS_FILE_RESULT(CrudeFileCopy(*this, destPath)); if (result == NS_OK) { // cast to fix const-ness ((nsFileSpec*)this)->Delete(PR_FALSE); } delete [] destPath; } return result; } //---------------------------------------------------------------------------------------- nsresult nsFileSpec::Execute(const char* inArgs ) const //---------------------------------------------------------------------------------------- { nsresult result = NS_FILE_FAILURE; if (! IsDirectory()) { char* fileNameWithArgs = nsFileSpecHelpers::StringDup(mPath, strlen(mPath) + 1 + strlen(inArgs)); strcat(fileNameWithArgs, " "); strcat(fileNameWithArgs, inArgs); result = NS_FILE_RESULT(system(fileNameWithArgs)); delete [] fileNameWithArgs; } return result; } // nsFileSpec::Execute //======================================================================================== // nsDirectoryIterator //======================================================================================== //---------------------------------------------------------------------------------------- nsDirectoryIterator::nsDirectoryIterator( const nsFileSpec& inDirectory , int inIterateDirection) //---------------------------------------------------------------------------------------- : mCurrent(inDirectory) , mDir(nsnull) , mExists(false) { mCurrent += "sysygy"; // prepare the path for SetLeafName mDir = opendir((const char*)nsFilePath(inDirectory)); ++(*this); } // nsDirectoryIterator::nsDirectoryIterator //---------------------------------------------------------------------------------------- nsDirectoryIterator::~nsDirectoryIterator() //---------------------------------------------------------------------------------------- { if (mDir) closedir(mDir); } // nsDirectoryIterator::nsDirectoryIterator //---------------------------------------------------------------------------------------- nsDirectoryIterator& nsDirectoryIterator::operator ++ () //---------------------------------------------------------------------------------------- { mExists = false; if (!mDir) return *this; char* dot = "."; char* dotdot = ".."; struct dirent* entry = readdir(mDir); if (entry && strcmp(entry->d_name, dot) == 0) entry = readdir(mDir); if (entry && strcmp(entry->d_name, dotdot) == 0) entry = readdir(mDir); if (entry) { mExists = true; mCurrent.SetLeafName(entry->d_name); } return *this; } // nsDirectoryIterator::operator ++ //---------------------------------------------------------------------------------------- nsDirectoryIterator& nsDirectoryIterator::operator -- () //---------------------------------------------------------------------------------------- { return ++(*this); // can't do it backwards. } // nsDirectoryIterator::operator --