kdecore Library API Documentation

kstandarddirs.cpp

00001 /* This file is part of the KDE libraries
00002    Copyright (C) 1999 Sirtaj Singh Kang <taj@kde.org>
00003    Copyright (C) 1999 Stephan Kulow <coolo@kde.org>
00004    Copyright (C) 1999 Waldo Bastian <bastian@kde.org>
00005 
00006    This library is free software; you can redistribute it and/or
00007    modify it under the terms of the GNU Library General Public
00008    License version 2 as published by the Free Software Foundation.
00009 
00010    This library is distributed in the hope that it will be useful,
00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013    Library General Public License for more details.
00014 
00015    You should have received a copy of the GNU Library General Public License
00016    along with this library; see the file COPYING.LIB.  If not, write to
00017    the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
00018    Boston, MA 02111-1307, USA.
00019 */
00020 
00021 /*
00022  * Author: Stephan Kulow <coolo@kde.org> and Sirtaj Singh Kang <taj@kde.org>
00023  * Version: $Id: kstandarddirs.cpp,v 1.151.2.1 2003/01/08 16:15:51 waba Exp $
00024  * Generated:   Thu Mar  5 16:05:28 EST 1998
00025  */
00026 
00027 #include "config.h"
00028 
00029 #include <stdlib.h>
00030 #include <assert.h>
00031 #include <errno.h>
00032 #ifdef HAVE_SYS_STAT_H
00033 #include <sys/stat.h>
00034 #endif
00035 #include <sys/types.h>
00036 #include <dirent.h>
00037 #include <pwd.h>
00038 
00039 #include <qregexp.h>
00040 #include <qasciidict.h>
00041 #include <qdict.h>
00042 #include <qdir.h>
00043 #include <qfileinfo.h>
00044 #include <qstring.h>
00045 #include <qstringlist.h>
00046 
00047 #include "kstandarddirs.h"
00048 #include "kconfig.h"
00049 #include "kdebug.h"
00050 #include "kinstance.h"
00051 #include <sys/param.h>
00052 #include <unistd.h>
00053 
00054 template class QDict<QStringList>;
00055 
00056 class KStandardDirs::KStandardDirsPrivate
00057 {
00058 public:
00059    KStandardDirsPrivate()
00060     : restrictionsActive(false),
00061       dataRestrictionActive(false)
00062    { }
00063 
00064    bool restrictionsActive;
00065    bool dataRestrictionActive;
00066    QAsciiDict<bool> restrictions;
00067 };
00068 
00069 static const char* const types[] = {"html", "icon", "apps", "sound",
00070                   "data", "locale", "services", "mime",
00071                   "servicetypes", "config", "exe",
00072                   "wallpaper", "lib", "pixmap", "templates", "module", "qtplugins", 0 };
00073 
00074 #if defined(__x86_64__) || defined(__s390x__) || defined(__powerpc64__) || defined(__sparc64__)
00075 #  define LIBDIR_NAME "lib64"
00076 #else
00077 #  define LIBDIR_NAME "lib"
00078 #endif
00079 
00080 static int tokenize( QStringList& token, const QString& str,
00081         const QString& delim );
00082 
00083 KStandardDirs::KStandardDirs( ) : addedCustoms(false), d(0)
00084 {
00085     dircache.setAutoDelete(true);
00086     relatives.setAutoDelete(true);
00087     absolutes.setAutoDelete(true);
00088     savelocations.setAutoDelete(true);
00089     addKDEDefaults();
00090 }
00091 
00092 KStandardDirs::~KStandardDirs()
00093 {
00094 }
00095 
00096 bool KStandardDirs::isRestrictedResource(const char *type, const QString& relPath) const
00097 {
00098    if (!d || !d->restrictionsActive)
00099       return false;
00100 
00101    if (d->restrictions[type])
00102       return true;
00103 
00104    if (strcmp(type, "data")==0)
00105    {
00106       applyDataRestrictions(relPath);
00107       if (d->dataRestrictionActive)
00108       {
00109          d->dataRestrictionActive = false;
00110          return true;
00111       }
00112    }
00113    return false;
00114 }
00115 
00116 void KStandardDirs::applyDataRestrictions(const QString &relPath) const
00117 {
00118    QString key;
00119    int i = relPath.find('/');
00120    if (i != -1)
00121       key = "data_"+relPath.left(i);
00122    else
00123       key = "data_"+relPath;
00124 
00125    if (d && d->restrictions[key.latin1()])
00126       d->dataRestrictionActive = true;
00127 }
00128 
00129 
00130 QStringList KStandardDirs::allTypes() const
00131 {
00132     QStringList list;
00133     for (int i = 0; types[i] != 0; ++i)
00134         list.append(QString::fromLatin1(types[i]));
00135     return list;
00136 }
00137 
00138 void KStandardDirs::addPrefix( const QString& _dir )
00139 {
00140     if (_dir.isNull())
00141     return;
00142 
00143     QString dir = _dir;
00144     if (dir.at(dir.length() - 1) != '/')
00145     dir += '/';
00146 
00147     if (!prefixes.contains(dir)) {
00148     prefixes.append(dir);
00149     dircache.clear();
00150     }
00151 }
00152 
00153 QString KStandardDirs::kfsstnd_prefixes()
00154 {
00155    return prefixes.join(":");
00156 }
00157 
00158 bool KStandardDirs::addResourceType( const char *type,
00159                      const QString& relativename )
00160 {
00161     if (relativename.isNull())
00162        return false;
00163 
00164     QStringList *rels = relatives.find(type);
00165     if (!rels) {
00166     rels = new QStringList();
00167     relatives.insert(type, rels);
00168     }
00169     QString copy = relativename;
00170     if (copy.at(copy.length() - 1) != '/')
00171     copy += '/';
00172     if (!rels->contains(copy)) {
00173     rels->prepend(copy);
00174     dircache.remove(type); // clean the cache
00175     return true;
00176     }
00177     return false;
00178 }
00179 
00180 bool KStandardDirs::addResourceDir( const char *type,
00181                     const QString& absdir)
00182 {
00183     QStringList *paths = absolutes.find(type);
00184     if (!paths) {
00185     paths = new QStringList();
00186     absolutes.insert(type, paths);
00187     }
00188     QString copy = absdir;
00189     if (copy.at(copy.length() - 1) != '/')
00190       copy += '/';
00191 
00192     if (!paths->contains(copy)) {
00193     paths->append(copy);
00194     dircache.remove(type); // clean the cache
00195     return true;
00196     }
00197     return false;
00198 }
00199 
00200 QString KStandardDirs::findResource( const char *type,
00201                      const QString& filename ) const
00202 {
00203     if (filename.at(0) == '/')
00204     return filename; // absolute dirs are absolute dirs, right? :-/
00205 
00206 #if 0
00207 kdDebug() << "Find resource: " << type << endl;
00208 for (QStringList::ConstIterator pit = prefixes.begin();
00209      pit != prefixes.end();
00210      pit++)
00211 {
00212   kdDebug() << "Prefix: " << *pit << endl;
00213 }
00214 #endif
00215 
00216     QString dir = findResourceDir(type, filename);
00217     if (dir.isNull())
00218     return dir;
00219     else return dir + filename;
00220 }
00221 
00222 static Q_UINT32 updateHash(const QString &file, Q_UINT32 hash)
00223 {
00224     QCString cFile = QFile::encodeName(file);
00225     struct stat buff;
00226     if ((access(cFile, R_OK) == 0) &&
00227         (stat( cFile, &buff ) == 0) &&
00228         (S_ISREG( buff.st_mode )))
00229     {
00230        hash = hash + (Q_UINT32) buff.st_ctime;
00231     }
00232     return hash;
00233 }
00234 
00235 Q_UINT32 KStandardDirs::calcResourceHash( const char *type,
00236                   const QString& filename, bool deep) const
00237 {
00238     Q_UINT32 hash = 0;
00239 
00240     if (filename.at(0) == '/')
00241     {
00242         // absolute dirs are absolute dirs, right? :-/
00243     return updateHash(filename, hash);
00244     }
00245     if (d && d->restrictionsActive && (strcmp(type, "data")==0))
00246        applyDataRestrictions(filename);
00247     QStringList candidates = resourceDirs(type);
00248     QString fullPath;
00249 
00250     for (QStringList::ConstIterator it = candidates.begin();
00251      it != candidates.end(); it++)
00252     {
00253         hash = updateHash(*it + filename, hash);
00254         if (!deep && hash)
00255            return hash;
00256     }
00257     return hash;
00258 }
00259 
00260 
00261 QStringList KStandardDirs::findDirs( const char *type,
00262                                      const QString& reldir ) const
00263 {
00264     QStringList list;
00265 
00266     checkConfig();
00267 
00268     if (d && d->restrictionsActive && (strcmp(type, "data")==0))
00269        applyDataRestrictions(reldir);
00270     QStringList candidates = resourceDirs(type);
00271     QDir testdir;
00272 
00273     for (QStringList::ConstIterator it = candidates.begin();
00274          it != candidates.end(); it++) {
00275         testdir.setPath(*it + reldir);
00276         if (testdir.exists())
00277             list.append(testdir.absPath() + '/');
00278     }
00279 
00280     return list;
00281 }
00282 
00283 QString KStandardDirs::findResourceDir( const char *type,
00284                     const QString& filename) const
00285 {
00286 #ifndef NDEBUG
00287     if (filename.isEmpty()) {
00288       kdWarning() << "filename for type " << type << " in KStandardDirs::findResourceDir is not supposed to be empty!!" << endl;
00289       return QString::null;
00290     }
00291 #endif
00292 
00293     if (d && d->restrictionsActive && (strcmp(type, "data")==0))
00294        applyDataRestrictions(filename);
00295     QStringList candidates = resourceDirs(type);
00296     QString fullPath;
00297 
00298     for (QStringList::ConstIterator it = candidates.begin();
00299      it != candidates.end(); it++)
00300       if (exists(*it + filename))
00301     return *it;
00302 
00303 #ifndef NDEBUG
00304     if(false && type != "locale")
00305       kdDebug() << "KStdDirs::findResDir(): can't find \"" << filename << "\" in type \"" << type << "\"." << endl;
00306 #endif
00307 
00308     return QString::null;
00309 }
00310 
00311 bool KStandardDirs::exists(const QString &fullPath)
00312 {
00313     struct stat buff;
00314     if (access(QFile::encodeName(fullPath), R_OK) == 0 && stat( QFile::encodeName(fullPath), &buff ) == 0)
00315     if (fullPath.at(fullPath.length() - 1) != '/') {
00316         if (S_ISREG( buff.st_mode ))
00317         return true;
00318     } else
00319         if (S_ISDIR( buff.st_mode ))
00320         return true;
00321     return false;
00322 }
00323 
00324 static void lookupDirectory(const QString& path, const QString &relPart,
00325                 const QRegExp &regexp,
00326                 QStringList& list,
00327                 QStringList& relList,
00328                 bool recursive, bool uniq)
00329 {
00330   QString pattern = regexp.pattern();
00331   if (recursive || pattern.contains('?') || pattern.contains('*'))
00332   {
00333     // We look for a set of files.
00334     DIR *dp = opendir( QFile::encodeName(path));
00335     if (!dp)
00336       return;
00337 
00338     assert(path.at(path.length() - 1) == '/');
00339 
00340     struct dirent *ep;
00341     struct stat buff;
00342 
00343     QString _dot(".");
00344     QString _dotdot("..");
00345 
00346     while( ( ep = readdir( dp ) ) != 0L )
00347     {
00348       QString fn( QFile::decodeName(ep->d_name));
00349       if (fn == _dot || fn == _dotdot || fn.at(fn.length() - 1).latin1() == '~')
00350     continue;
00351 
00352       if (!recursive && !regexp.exactMatch(fn))
00353     continue; // No match
00354 
00355       QString pathfn = path + fn;
00356       if ( stat( QFile::encodeName(pathfn), &buff ) != 0 ) {
00357     kdDebug() << "Error stat'ing " << pathfn << " : " << perror << endl;
00358     continue; // Couldn't stat (e.g. no read permissions)
00359       }
00360       if ( recursive ) {
00361     if ( S_ISDIR( buff.st_mode )) {
00362       lookupDirectory(pathfn + '/', relPart + fn + '/', regexp, list, relList, recursive, uniq);
00363     }
00364         if (!regexp.exactMatch(fn))
00365       continue; // No match
00366       }
00367       if ( S_ISREG( buff.st_mode))
00368       {
00369         if (!uniq || !relList.contains(relPart + fn))
00370         {
00371         list.append( pathfn );
00372         relList.append( relPart + fn );
00373         }
00374       }
00375     }
00376     closedir( dp );
00377   }
00378   else
00379   {
00380      // We look for a single file.
00381      QString fn = pattern;
00382      QString pathfn = path + fn;
00383      struct stat buff;
00384      if ( stat( QFile::encodeName(pathfn), &buff ) != 0 )
00385         return; // File not found
00386      if ( S_ISREG( buff.st_mode))
00387      {
00388        if (!uniq || !relList.contains(relPart + fn))
00389        {
00390          list.append( pathfn );
00391          relList.append( relPart + fn );
00392        }
00393      }
00394   }
00395 }
00396 
00397 static void lookupPrefix(const QString& prefix, const QString& relpath,
00398                          const QString& relPart,
00399              const QRegExp &regexp,
00400              QStringList& list,
00401              QStringList& relList,
00402              bool recursive, bool uniq)
00403 {
00404     if (relpath.isNull()) {
00405        lookupDirectory(prefix, relPart, regexp, list,
00406                relList, recursive, uniq);
00407        return;
00408     }
00409     QString path;
00410     QString rest;
00411 
00412     if (relpath.length())
00413     {
00414        int slash = relpath.find('/');
00415        if (slash < 0)
00416        rest = relpath.left(relpath.length() - 1);
00417        else {
00418        path = relpath.left(slash);
00419        rest = relpath.mid(slash + 1);
00420        }
00421     }
00422 
00423     assert(prefix.at(prefix.length() - 1) == '/');
00424 
00425     struct stat buff;
00426 
00427     if (path.contains('*') || path.contains('?')) {
00428 
00429     QRegExp pathExp(path, true, true);
00430     DIR *dp = opendir( QFile::encodeName(prefix) );
00431     if (!dp) {
00432         return;
00433     }
00434 
00435     struct dirent *ep;
00436 
00437         QString _dot(".");
00438         QString _dotdot("..");
00439 
00440     while( ( ep = readdir( dp ) ) != 0L )
00441         {
00442         QString fn( QFile::decodeName(ep->d_name));
00443         if (fn == _dot || fn == _dotdot || fn.at(fn.length() - 1) == '~')
00444             continue;
00445 
00446         if (pathExp.search(fn) == -1)
00447             continue; // No match
00448         QString rfn = relPart+fn;
00449         fn = prefix + fn;
00450         if ( stat( QFile::encodeName(fn), &buff ) != 0 ) {
00451             kdDebug() << "Error statting " << fn << " : " << perror << endl;
00452             continue; // Couldn't stat (e.g. no permissions)
00453         }
00454         if ( S_ISDIR( buff.st_mode ))
00455             lookupPrefix(fn + '/', rest, rfn + '/', regexp, list, relList, recursive, uniq);
00456         }
00457 
00458     closedir( dp );
00459     } else {
00460         // Don't stat, if the dir doesn't exist we will find out
00461         // when we try to open it.
00462         lookupPrefix(prefix + path + '/', rest,
00463                      relPart + path + '/', regexp, list,
00464                      relList, recursive, uniq);
00465     }
00466 }
00467 
00468 QStringList
00469 KStandardDirs::findAllResources( const char *type,
00470                      const QString& filter,
00471                  bool recursive,
00472                      bool uniq,
00473                                  QStringList &relList) const
00474 {
00475     QStringList list;
00476     if (filter.at(0) == '/') // absolute paths we return
00477     {
00478         list.append( filter);
00479     return list;
00480     }
00481 
00482     QString filterPath;
00483     QString filterFile;
00484 
00485     if (filter.length())
00486     {
00487        int slash = filter.findRev('/');
00488        if (slash < 0)
00489        filterFile = filter;
00490        else {
00491        filterPath = filter.left(slash + 1);
00492        filterFile = filter.mid(slash + 1);
00493        }
00494     }
00495 
00496     checkConfig();
00497 
00498     if (d && d->restrictionsActive && (strcmp(type, "data")==0))
00499        applyDataRestrictions(filter);
00500     QStringList candidates = resourceDirs(type);
00501     if (filterFile.isEmpty())
00502     filterFile = "*";
00503 
00504     QRegExp regExp(filterFile, true, true);
00505 
00506     for (QStringList::ConstIterator it = candidates.begin();
00507          it != candidates.end(); it++)
00508     {
00509         lookupPrefix(*it, filterPath, "", regExp, list,
00510                      relList, recursive, uniq);
00511     }
00512 
00513     return list;
00514 }
00515 
00516 QStringList
00517 KStandardDirs::findAllResources( const char *type,
00518                      const QString& filter,
00519                  bool recursive,
00520                      bool uniq) const
00521 {
00522     QStringList relList;
00523     return findAllResources(type, filter, recursive, uniq, relList);
00524 }
00525 
00526 QString 
00527 KStandardDirs::realPath(const QString &dirname)
00528 {
00529     char realpath_buffer[MAXPATHLEN + 1];
00530     memset(realpath_buffer, 0, MAXPATHLEN + 1);
00531 
00532     /* If the path contains symlinks, get the real name */
00533     if (realpath( QFile::encodeName(dirname).data(), realpath_buffer) != 0) {
00534         // succes, use result from realpath
00535         int len = strlen(realpath_buffer);
00536         realpath_buffer[len] = '/';
00537         realpath_buffer[len+1] = 0;
00538         return QFile::decodeName(realpath_buffer);
00539     }
00540 
00541     return dirname;
00542 }
00543 
00544 void KStandardDirs::createSpecialResource(const char *type)
00545 {
00546    char hostname[256];
00547    hostname[0] = 0;
00548    gethostname(hostname, 255);
00549    QString dir = QString("%1%2-%3").arg(localkdedir()).arg(type).arg(hostname);
00550    char link[1024];
00551    link[1023] = 0;
00552    int result = readlink(QFile::encodeName(dir).data(), link, 1023);
00553    bool relink = (result == -1) && (errno == ENOENT);
00554    if ((result > 0) && (link[0] == '/'))
00555    {
00556       link[result] = 0;
00557       struct stat stat_buf;
00558       int res = lstat(link, &stat_buf);
00559       if ((res == -1) && (errno == ENOENT))
00560       {
00561          relink = true;
00562       }
00563       else if ((res == -1) || (!S_ISDIR(stat_buf.st_mode)))
00564       {
00565          fprintf(stderr, "Error: \"%s\" is not a directory.\n", link);
00566          relink = true;
00567       }
00568       else if (stat_buf.st_uid != getuid())
00569       {
00570          fprintf(stderr, "Error: \"%s\" is owned by uid %d instead of uid %d.\n", link, stat_buf.st_uid, getuid());
00571          relink = true;
00572       }
00573    }
00574    if (relink)
00575    {
00576       QString srv = findExe(QString::fromLatin1("lnusertemp"), KDEDIR+QString::fromLatin1("/bin"));
00577       if (srv.isEmpty())
00578          srv = findExe(QString::fromLatin1("lnusertemp"));
00579       if (!srv.isEmpty())
00580       {
00581          system(QFile::encodeName(srv)+" "+type);
00582          result = readlink(QFile::encodeName(dir).data(), link, 1023);
00583       }
00584    }
00585    if (result > 0)
00586    {
00587       link[result] = 0;
00588       if (link[0] == '/')
00589          dir = QFile::decodeName(link);
00590       else
00591          dir = QDir::cleanDirPath(dir+QFile::decodeName(link));
00592    }
00593    addResourceDir(type, dir+'/');
00594 }
00595 
00596 QStringList KStandardDirs::resourceDirs(const char *type) const
00597 {
00598     QStringList *candidates = dircache.find(type);
00599 
00600     if (!candidates) { // filling cache
00601         if (strcmp(type, "socket") == 0)
00602            const_cast<KStandardDirs *>(this)->createSpecialResource(type);
00603         else if (strcmp(type, "tmp") == 0)
00604            const_cast<KStandardDirs *>(this)->createSpecialResource(type);
00605 
00606         QDir testdir;
00607 
00608         candidates = new QStringList();
00609         QStringList *dirs;
00610 
00611         bool restrictionActive = false;
00612         if (d && d->restrictionsActive)
00613         {
00614            if (d->dataRestrictionActive)
00615               restrictionActive = true;
00616            else if (d->restrictions["all"])
00617               restrictionActive = true;
00618            else if (d->restrictions[type])
00619               restrictionActive = true;
00620            d->dataRestrictionActive = false; // Reset
00621         }
00622 
00623         dirs = relatives.find(type);
00624         if (dirs)
00625         {
00626             bool local = true;
00627             for (QStringList::ConstIterator pit = prefixes.begin();
00628                  pit != prefixes.end();
00629                  pit++)
00630             {
00631                 for (QStringList::ConstIterator it = dirs->begin();
00632                      it != dirs->end(); ++it) {
00633                     QString path = realPath(*pit + *it);
00634                     testdir.setPath(path);
00635                     if (local && restrictionActive)
00636                        continue;
00637                     if ((local || testdir.exists()) && !candidates->contains(path))
00638                         candidates->append(path);
00639                 }
00640                 local = false;
00641             }
00642         }
00643         dirs = absolutes.find(type);
00644         if (dirs)
00645             for (QStringList::ConstIterator it = dirs->begin();
00646                  it != dirs->end(); ++it)
00647             {
00648                 testdir.setPath(*it);
00649                 if (testdir.exists())
00650                 {
00651                     QString filename = realPath(*it);
00652                     if (!candidates->contains(filename))
00653                         candidates->append(filename);
00654                 }
00655             }
00656         dircache.insert(type, candidates);
00657     }
00658 
00659 #if 0
00660     kdDebug() << "found dirs for resource " << type << ":" << endl;
00661     for (QStringList::ConstIterator pit = candidates->begin();
00662      pit != candidates->end();
00663      pit++)
00664     {
00665     fprintf(stderr, "%s\n", (*pit).latin1());
00666     }
00667 #endif
00668 
00669 
00670   return *candidates;
00671 }
00672 
00673 QString KStandardDirs::findExe( const QString& appname,
00674                 const QString& pstr, bool ignore)
00675 {
00676     QFileInfo info;
00677 
00678     // absolute path ?
00679     if (appname.startsWith(QString::fromLatin1("/")))
00680     {
00681         info.setFile( appname );
00682         if( info.exists() && ( ignore || info.isExecutable() )
00683             && info.isFile() ) {
00684             return appname;
00685         }
00686         return QString::null;
00687     }
00688 
00689     QString p = QString("%1/%2").arg(__KDE_BINDIR).arg(appname);
00690     info.setFile( p );
00691     if( info.exists() && ( ignore || info.isExecutable() )
00692          && ( info.isFile() || info.isSymLink() )  ) {
00693          return p;
00694     }
00695 
00696     QStringList tokens;
00697     p = pstr;
00698 
00699     if( p == QString::null ) {
00700     p = getenv( "PATH" );
00701     }
00702 
00703     tokenize( tokens, p, ":\b" );
00704 
00705     // split path using : or \b as delimiters
00706     for( unsigned i = 0; i < tokens.count(); i++ ) {
00707     p = tokens[ i ];
00708 
00709         if ( p[ 0 ] == '~' )
00710         {
00711             int len = p.find( '/' );
00712             if ( len == -1 )
00713                 len = p.length();
00714             if ( len == 1 )
00715                 p.replace( 0, 1, QDir::homeDirPath() );
00716             else
00717             {
00718                 QString user = p.mid( 1, len - 1 );
00719                 struct passwd *dir = getpwnam( user.local8Bit().data() );
00720                 if ( dir && strlen( dir->pw_dir ) )
00721                     p.replace( 0, len, QString::fromLocal8Bit( dir->pw_dir ) );
00722             }
00723         }
00724 
00725     p += "/";
00726     p += appname;
00727 
00728     // Check for executable in this tokenized path
00729     info.setFile( p );
00730 
00731     if( info.exists() && ( ignore || info.isExecutable() )
00732            && ( info.isFile() || info.isSymLink() )  ) {
00733         return p;
00734     }
00735     }
00736 
00737     // If we reach here, the executable wasn't found.
00738     // So return empty string.
00739 
00740     return QString::null;
00741 }
00742 
00743 int KStandardDirs::findAllExe( QStringList& list, const QString& appname,
00744             const QString& pstr, bool ignore )
00745 {
00746     QString p = pstr;
00747     QFileInfo info;
00748     QStringList tokens;
00749 
00750     if( p == QString::null ) {
00751     p = getenv( "PATH" );
00752     }
00753 
00754     list.clear();
00755     tokenize( tokens, p, ":\b" );
00756 
00757     for ( unsigned i = 0; i < tokens.count(); i++ ) {
00758     p = tokens[ i ];
00759     p += "/";
00760     p += appname;
00761 
00762     info.setFile( p );
00763 
00764     if( info.exists() && (ignore || info.isExecutable())
00765         && info.isFile() ) {
00766         list.append( p );
00767     }
00768 
00769     }
00770 
00771     return list.count();
00772 }
00773 
00774 static int tokenize( QStringList& tokens, const QString& str,
00775              const QString& delim )
00776 {
00777     int len = str.length();
00778     QString token = "";
00779 
00780     for( int index = 0; index < len; index++)
00781     {
00782     if ( delim.find( str[ index ] ) >= 0 )
00783     {
00784         tokens.append( token );
00785         token = "";
00786     }
00787     else
00788     {
00789         token += str[ index ];
00790     }
00791     }
00792     if ( token.length() > 0 )
00793     {
00794     tokens.append( token );
00795     }
00796 
00797     return tokens.count();
00798 }
00799 
00800 QString KStandardDirs::kde_default(const char *type) {
00801     if (!strcmp(type, "data"))
00802     return "share/apps/";
00803     if (!strcmp(type, "html"))
00804     return "share/doc/HTML/";
00805     if (!strcmp(type, "icon"))
00806     return "share/icons/";
00807     if (!strcmp(type, "config"))
00808     return "share/config/";
00809     if (!strcmp(type, "pixmap"))
00810     return "share/pixmaps/";
00811     if (!strcmp(type, "apps"))
00812     return "share/applnk-redhat/";
00813     if (!strcmp(type, "sound"))
00814     return "share/sounds/";
00815     if (!strcmp(type, "locale"))
00816     return "share/locale/";
00817     if (!strcmp(type, "services"))
00818     return "share/services/";
00819     if (!strcmp(type, "servicetypes"))
00820     return "share/servicetypes/";
00821     if (!strcmp(type, "mime"))
00822     return "share/mimelnk/";
00823     if (!strcmp(type, "cgi"))
00824     return "cgi-bin/";
00825     if (!strcmp(type, "wallpaper"))
00826     return "share/wallpapers/";
00827     if (!strcmp(type, "templates"))
00828     return "share/templates/";
00829     if (!strcmp(type, "exe"))
00830     return "bin/";
00831     if (!strcmp(type, "lib"))
00832     return LIBDIR_NAME "/";
00833     if (!strcmp(type, "module"))
00834     return LIBDIR_NAME "/kde3/";
00835     if (!strcmp(type, "qtplugins"))
00836         return LIBDIR_NAME "/kde3/plugins";
00837     qFatal("unknown resource type %s", type);
00838     return QString::null;
00839 }
00840 
00841 QString KStandardDirs::saveLocation(const char *type,
00842                     const QString& suffix,
00843                     bool create) const
00844 {
00845     checkConfig();
00846 
00847     QString *pPath = savelocations.find(type);
00848     if (!pPath)
00849     {
00850        QStringList *dirs = relatives.find(type);
00851        if (!dirs && ((strcmp(type, "socket") == 0) || (strcmp(type, "tmp") == 0)))
00852        {
00853           (void) resourceDirs(type); // Generate socket resource.
00854           dirs = relatives.find(type); // Search again.
00855        }
00856        if (dirs)
00857        {
00858           // Check for existance of typed directory + suffix
00859           pPath = new QString(realPath(localkdedir() + dirs->last()));
00860        }
00861        else {
00862           dirs = absolutes.find(type);
00863           if (!dirs)
00864              qFatal("KStandardDirs: The resource type %s is not registered", type);
00865           pPath = new QString(realPath(dirs->last()));
00866        }
00867 
00868        savelocations.insert(type, pPath);
00869     }
00870     QString fullPath = *pPath + suffix;
00871 
00872     struct stat st;
00873     if (stat(QFile::encodeName(fullPath), &st) != 0 || !(S_ISDIR(st.st_mode))) {
00874     if(!create) {
00875 #ifndef NDEBUG
00876         qDebug("save location %s doesn't exist", fullPath.latin1());
00877 #endif
00878         return localkdedir()+suffix;
00879     }
00880     if(!makeDir(fullPath, 0700)) {
00881             qWarning("failed to create %s", fullPath.latin1());
00882         return localkdedir()+suffix;
00883     }
00884         dircache.remove(type);
00885     }
00886     return fullPath;
00887 }
00888 
00889 QString KStandardDirs::relativeLocation(const char *type, const QString &absPath)
00890 {
00891     QString fullPath = absPath;
00892     int i = absPath.findRev('/');
00893     if (i != -1)
00894     {
00895        fullPath = realPath(absPath.left(i+1))+absPath.mid(i+1); // Normalize
00896     }
00897 
00898     QStringList candidates = resourceDirs(type);
00899 
00900     for (QStringList::ConstIterator it = candidates.begin();
00901      it != candidates.end(); it++)
00902       if (fullPath.startsWith(*it))
00903       {
00904     return fullPath.mid((*it).length());
00905       }
00906 
00907     return absPath;
00908 }
00909 
00910 
00911 bool KStandardDirs::makeDir(const QString& dir, int mode)
00912 {
00913     // we want an absolute path
00914     if (dir.at(0) != '/')
00915         return false;
00916 
00917     QString target = dir;
00918     uint len = target.length();
00919 
00920     // append trailing slash if missing
00921     if (dir.at(len - 1) != '/')
00922         target += '/';
00923 
00924     QString base("");
00925     uint i = 1;
00926 
00927     while( i < len )
00928     {
00929         struct stat st;
00930         int pos = target.find('/', i);
00931         base += target.mid(i - 1, pos - i + 1);
00932         QCString baseEncoded = QFile::encodeName(base);
00933         // bail out if we encountered a problem
00934         if (stat(baseEncoded, &st) != 0)
00935         {
00936           // Directory does not exist....
00937           // Or maybe a dangling symlink ?
00938           if (lstat(baseEncoded, &st) == 0)
00939               (void)unlink(baseEncoded); // try removing
00940 
00941       if ( mkdir(baseEncoded, (mode_t) mode) != 0) {
00942         perror("trying to create local folder");
00943         return false; // Couldn't create it :-(
00944       }
00945         }
00946         i = pos + 1;
00947     }
00948     return true;
00949 }
00950 
00951 static QString readEnvPath(const char *env)
00952 {
00953    QCString c_path = getenv(env);
00954    if (c_path.isEmpty())
00955       return QString::null;
00956    return QFile::decodeName(c_path);
00957 }
00958 
00959 static void fixHomeDir(QString &dir)
00960 {
00961    if (dir[0] == '~')
00962    {
00963       dir = QDir::homeDirPath() + dir.mid(1);
00964    }
00965 }
00966 
00967 void KStandardDirs::addKDEDefaults()
00968 {
00969     QStringList kdedirList;
00970 
00971     QString kdedirs = readEnvPath("KDEDIRS");
00972     if (!kdedirs.isEmpty())
00973     {
00974     tokenize(kdedirList, kdedirs, ":");
00975     }
00976     else
00977     {
00978     QString kdedir = readEnvPath("KDEDIR");
00979     if (!kdedir.isEmpty())
00980         {
00981            fixHomeDir(kdedir);
00982        kdedirList.append(kdedir);
00983         }
00984     }
00985     kdedirList.append(KDEDIR);
00986 
00987 #ifdef __KDE_EXECPREFIX
00988     QString execPrefix(__KDE_EXECPREFIX);
00989     if (execPrefix!="NONE")
00990        kdedirList.append(execPrefix);
00991 #endif
00992 
00993     QString localKdeDir;
00994     if (getuid())
00995     {
00996        localKdeDir = readEnvPath("KDEHOME");
00997        if (!localKdeDir.isEmpty())
00998        {
00999           if (localKdeDir[localKdeDir.length()-1] != '/')
01000              localKdeDir += '/';
01001        }
01002        else
01003        {
01004           localKdeDir =  QDir::homeDirPath() + "/.kde/";
01005        }
01006     }
01007     else
01008     {
01009        // We treat root different to prevent root messing up the
01010        // file permissions in the users home directory.
01011        localKdeDir = readEnvPath("KDEROOTHOME");
01012        if (!localKdeDir.isEmpty())
01013        {
01014           if (localKdeDir[localKdeDir.length()-1] != '/')
01015              localKdeDir += '/';
01016        }
01017        else
01018        {
01019           struct passwd *pw = getpwuid(0);
01020           localKdeDir =  QFile::decodeName((pw && pw->pw_dir) ? pw->pw_dir : "/root")  + "/.kde/";
01021        }
01022 
01023     }
01024 
01025     fixHomeDir(localKdeDir);
01026     addPrefix(localKdeDir);
01027 
01028     for (QStringList::ConstIterator it = kdedirList.begin();
01029      it != kdedirList.end(); it++)
01030     {
01031         QString dir = *it;
01032         fixHomeDir(dir);
01033     addPrefix(dir);
01034     }
01035 
01036     uint index = 0;
01037     while (types[index] != 0) {
01038     addResourceType(types[index], kde_default(types[index]));
01039     index++;
01040     }
01041 
01042     QString dir = QString("%1share/cache/").arg(localKdeDir);
01043     addResourceDir("cache", dir);
01044 
01045     addResourceDir("home", QDir::homeDirPath());
01046 }
01047 
01048 void KStandardDirs::checkConfig() const
01049 {
01050     if (!addedCustoms && KGlobal::_instance && KGlobal::_instance->_config)
01051         const_cast<KStandardDirs*>(this)->addCustomized(KGlobal::_instance->_config);
01052 }
01053 
01054 bool KStandardDirs::addCustomized(KConfig *config)
01055 {
01056     if (addedCustoms) // there are already customized entries
01057         return false; // we just quite and hope they are the right ones
01058 
01059     // save the numbers of config directories. If this changes,
01060     // we will return true to give KConfig a chance to reparse
01061     uint configdirs = resourceDirs("config").count();
01062 
01063     // reading the prefixes in
01064     QString oldGroup = config->group();
01065     config->setGroup("Directories");
01066 
01067     QStringList list;
01068     QStringList::ConstIterator it;
01069     list = config->readListEntry("prefixes");
01070     for (it = list.begin(); it != list.end(); it++)
01071     addPrefix(*it);
01072 
01073     // iterating over all entries in the group Directories
01074     // to find entries that start with dir_$type
01075     QMap<QString, QString> entries = config->entryMap("Directories");
01076 
01077     QMap<QString, QString>::ConstIterator it2;
01078     for (it2 = entries.begin(); it2 != entries.end(); it2++)
01079     {
01080     QString key = it2.key();
01081     if (key.left(4) == "dir_") {
01082         // generate directory list, there may be more than 1.
01083         QStringList dirs = QStringList::split(',',
01084                           *it2);
01085         QStringList::Iterator sIt(dirs.begin());
01086         QString resType = key.mid(4, key.length());
01087         for (; sIt != dirs.end(); ++sIt) {
01088         addResourceDir(resType.latin1(), *sIt);
01089         }
01090     }
01091     }
01092 
01093     // Process KIOSK restrictions.
01094     config->setGroup("KDE Resource Restrictions");
01095     entries = config->entryMap("KDE Resource Restrictions");
01096     for (it2 = entries.begin(); it2 != entries.end(); it2++)
01097     {
01098     QString key = it2.key();
01099         if (!config->readBoolEntry(key, true))
01100         {
01101            if (!d)
01102            {
01103                d = new KStandardDirsPrivate;
01104                d->restrictionsActive = true;
01105            }
01106            d->restrictions.insert(key.latin1(), &d->restrictionsActive); // Anything will do
01107            dircache.remove(key.latin1());
01108         }
01109     }
01110 
01111     // save it for future calls - that will return
01112     addedCustoms = true;
01113     config->setGroup(oldGroup);
01114 
01115     // return true if the number of config dirs changed
01116     return (resourceDirs("config").count() != configdirs);
01117 }
01118 
01119 QString KStandardDirs::localkdedir() const
01120 {
01121     // Return the prefix to use for saving
01122     return prefixes.first();
01123 }
01124 
01125 // just to make code more readable without macros
01126 QString locate( const char *type,
01127         const QString& filename, const KInstance* inst )
01128 {
01129     return inst->dirs()->findResource(type, filename);
01130 }
01131 
01132 QString locateLocal( const char *type,
01133                  const QString& filename, const KInstance* inst )
01134 {
01135     // try to find slashes. If there are some, we have to
01136     // create the subdir first
01137     int slash = filename.findRev('/')+1;
01138     if (!slash) // only one filename
01139     return inst->dirs()->saveLocation(type) + filename;
01140 
01141     // split path from filename
01142     QString dir = filename.left(slash);
01143     QString file = filename.mid(slash);
01144     return inst->dirs()->saveLocation(type, dir) + file;
01145 }
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This file is part of the documentation for kdelibs Version 3.1.0.
Documentation copyright © 1996-2002 the KDE developers.
Generated on Sun Feb 27 15:39:23 2005 by doxygen 1.2.18 written by Dimitri van Heesch, © 1997-2001