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tdeadmin/kuser/kgroupfiles.cpp

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/*
* Copyright (c) 1998 Denis Perchine <dyp@perchine.com>
* Copyright (c) 2004 Szombathelyi György <gyurco@freemail.hu>
* Former maintainer: Adriaan de Groot <groot@kde.org>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License version 2 as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
**/
#include "globals.h"
#include <errno.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <sys/types.h>
#include <sys/file.h>
#include <sys/stat.h>
#include <grp.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <qstring.h>
#include <qdir.h>
#include <kdebug.h>
#include <kstandarddirs.h>
#include <kmessagebox.h>
#include "kglobal_.h"
#include "kgroupfiles.h"
#include "misc.h"
#include "editDefaults.h"
KGroupFiles::KGroupFiles( KUserPrefsBase *cfg ) : KGroups( cfg )
{
gs_backuped = FALSE;
gr_backuped = FALSE;
gn_backuped = FALSE;
smode = 0400;
mode = 0644;
uid = 0;
gid = 0;
caps = Cap_Passwd;
reload();
}
KGroupFiles::~KGroupFiles()
{
mGroups.clear();
}
bool KGroupFiles::reload()
{
struct group *p;
KU::KGroup *tmpKG = 0;
struct stat st;
QString filename;
QString group_filename;
QString nisgroup_filename;
int rc = 0;
int group_errno = 0;
int nisgroup_errno = 0;
char processing_file = '\0';
#define GROUP 0x01
#define NISGROUP 0x02
#define MAXFILES 2
// Prepare to read KUser configuration
group_filename = mCfg->groupsrc();
nisgroup_filename = mCfg->nisgroupsrc();
if(!group_filename.isEmpty()) {
processing_file = processing_file | GROUP;
filename.append(group_filename);
}
// Start reading group file(s)
for(int k = 0; k < MAXFILES; k++) {
rc = stat(QFile::encodeName(filename), &st);
if(rc != 0) {
KMessageBox::error( 0, i18n("stat call on file %1 failed: %2\nCheck KUser settings.").
arg(filename).arg(QString::fromLatin1(strerror(errno))) );
if( (processing_file & GROUP) != 0 ) {
group_errno = errno;
if(!nisgroup_filename.isEmpty()) {
processing_file = processing_file & ~GROUP;
processing_file = processing_file | NISGROUP;
filename.truncate(0);
filename.append(nisgroup_filename);
}
continue;
}
else{
nisgroup_errno = errno;
break;
}
}
mode = st.st_mode;
uid = st.st_uid;
gid = st.st_gid;
// We are reading our configuration specified group file
#ifdef HAVE_FGETGRENT
FILE *fgrp = fopen(QFile::encodeName(filename), "r");
QString tmp;
if (fgrp == NULL) {
KMessageBox::error( 0, i18n("Error opening %1 for reading.").arg(filename) );
return FALSE;
}
while ((p = fgetgrent(fgrp)) != NULL) {
#else
setgrent();
while ((p = getgrent()) != NULL) {
#endif
tmpKG = new KU::KGroup();
tmpKG->setGID(p->gr_gid);
tmpKG->setName(QString::fromLocal8Bit(p->gr_name));
tmpKG->setPwd(QString::fromLocal8Bit(p->gr_passwd));
char *u_name;
int i = 0;
while ((u_name = p->gr_mem[i])!=0) {
tmpKG->addUser(QString::fromLocal8Bit(u_name));
i++;
}
mGroups.append(tmpKG);
}
// End reading filename
#ifdef HAVE_FGETGRENT
fclose(fgrp);
#else
endgrent();
#endif
if(!nisgroup_filename.isEmpty()) {
if(nisgroup_filename == group_filename)
break;
processing_file = processing_file & ~GROUP;
processing_file = processing_file | NISGROUP;
filename.truncate(0);
filename.append(nisgroup_filename);
}
else
break;
} // end of processing files, for loop
if( (group_errno == 0) && (nisgroup_errno == 0) )
return(TRUE);
if( (group_errno != 0) && (nisgroup_errno != 0) )
return(FALSE);
else
return(TRUE);
}
bool KGroupFiles::save()
{
kdDebug() << "KGroupFiles::save() " << endl;
FILE *group_fd = NULL;
FILE *gshadow_fd = NULL;
FILE *nisgroup_fd = NULL;
gid_t mingid = 0;
int nis_groups_written = 0;
gid_t tmp_gid = 0;
QString tmpGe, tmpSe, tmp2;
QString group_filename, new_group_filename;
QString gshadow_filename, new_gshadow_filename;
QString nisgroup_filename, new_nisgroup_filename;
char errors_found = '\0';
#define NOMINGID 0x01
#define NONISGROUP 0x02
// read KUser configuration info
group_filename = mCfg->groupsrc();
new_group_filename = group_filename + QString::fromLatin1(KU_CREATE_EXT);
#ifdef HAVE_SHADOW
gshadow_filename = mCfg->gshadowsrc();
if ( !KStandardDirs::exists( gshadow_filename ) )
gshadow_filename = QString::null;
else
new_gshadow_filename = gshadow_filename + QString::fromLatin1(KU_CREATE_EXT);
#endif
nisgroup_filename = mCfg->nisgroupsrc();
new_nisgroup_filename = nisgroup_filename + QString::fromLatin1(KU_CREATE_EXT);
if( nisgroup_filename != group_filename ) {
mingid = mCfg->nismingid();
}
// Backup file(s)
if(!group_filename.isEmpty()) {
if (!gr_backuped) {
if ( !backup(group_filename) ) return false;
gr_backuped = TRUE;
}
}
if(!gshadow_filename.isEmpty()) {
if (!gs_backuped) {
if ( !backup(gshadow_filename) ) return false;
gs_backuped = TRUE;
}
}
if(!nisgroup_filename.isEmpty() && (nisgroup_filename != group_filename)) {
if (!gn_backuped) {
if ( !backup(nisgroup_filename) ) return false;
gn_backuped = TRUE;
}
}
// Open file(s)
if(!group_filename.isEmpty()) {
if((group_fd = fopen(QFile::encodeName(new_group_filename), "w")) == NULL) {
KMessageBox::error( 0, i18n("Error opening %1 for writing.").arg(new_group_filename) );
return false;
}
}
if(!gshadow_filename.isEmpty()) {
if((gshadow_fd = fopen(QFile::encodeName(new_gshadow_filename), "w")) == NULL) {
KMessageBox::error( 0, i18n("Error opening %1 for writing.").arg(new_gshadow_filename) );
if ( group_fd ) fclose ( group_fd );
return false;
}
}
if(!nisgroup_filename.isEmpty() && (nisgroup_filename != group_filename)) {
if((nisgroup_fd = fopen(QFile::encodeName(new_nisgroup_filename), "w")) == NULL) {
KMessageBox::error( 0, i18n("Error opening %1 for writing.").arg(new_nisgroup_filename) );
if ( group_fd ) fclose ( group_fd );
if ( gshadow_fd ) fclose ( gshadow_fd );
return false;
}
}
QPtrListIterator<KU::KGroup> it( mGroups );
KU::KGroup *gr;
bool addok = false;
gr = (*it);
while (true) {
if ( gr == 0 ) {
if ( addok ) break;
it = QPtrListIterator<KU::KGroup> ( mAdd );
gr = (*it);
addok = true;
if ( gr == 0 ) break;
};
if ( mDel.containsRef( gr ) ) {
++it;
gr = (*it);
continue;
}
if ( mMod.contains( gr ) ) gr = &( mMod[ gr ] );
#ifdef HAVE_SHADOW
if ( addok && !mCfg->gshadowsrc().isEmpty() )
gr->setPwd("x");
#endif
tmpGe = gr->getName();
tmpGe.replace( ',', "_" );
tmpGe.replace( ':', "_" );
gr->setName( tmpGe );
tmp_gid = gr->getGID();
tmpGe += ":" +
gr->getPwd() + ":" +
QString::number( gr->getGID() ) + ":";
tmpSe = gr->getName() + ":!::";
for (uint j=0; j<gr->count(); j++) {
if (j != 0) {
tmpGe += ',';
tmpSe += ',';
}
gr->user( j ).replace( ',', "_" );
gr->user( j ).replace( ':', "_" );
tmpGe += gr->user( j) ;
tmpSe += gr->user( j );
}
tmpGe += '\n'; tmpSe += '\n';
if( (nisgroup_fd != 0) && (mingid != 0) ) {
if(mingid <= tmp_gid) {
fputs(tmpGe.local8Bit(), nisgroup_fd);
nis_groups_written++;
++it;
gr = (*it);
continue;
}
}
if( (nisgroup_fd != 0) && (mingid == 0) ) {
errors_found = errors_found | NOMINGID;
}
if( (nisgroup_fd == 0) && (mingid != 0) ) {
errors_found = errors_found | NONISGROUP;
}
fputs( tmpGe.local8Bit(), group_fd );
if ( gshadow_fd ) fputs( tmpSe.local8Bit(), gshadow_fd );
++it;
gr = (*it);
}
if(group_fd) {
fclose(group_fd);
chmod(QFile::encodeName(new_group_filename), mode);
chown(QFile::encodeName(new_group_filename), uid, gid);
rename(QFile::encodeName(new_group_filename),
QFile::encodeName(group_filename));
}
if(gshadow_fd) {
fclose(gshadow_fd);
chmod(QFile::encodeName(new_gshadow_filename), mode);
chown(QFile::encodeName(new_gshadow_filename), uid, gid);
rename(QFile::encodeName(new_gshadow_filename),
QFile::encodeName(gshadow_filename));
}
if(nisgroup_fd) {
fclose(nisgroup_fd);
chmod(QFile::encodeName(nisgroup_filename), mode);
chown(QFile::encodeName(nisgroup_filename), uid, gid);
rename(QFile::encodeName(new_nisgroup_filename),
QFile::encodeName(nisgroup_filename));
}
if( (errors_found & NOMINGID) != 0 ) {
KMessageBox::error( 0, i18n("Unable to process NIS group file without a minimum GID specified.\nPlease update KUser settings (File Source Settings).") );
}
if( (errors_found & NONISGROUP) != 0 ) {
KMessageBox::error( 0, i18n("Specifying NIS minimum GID requires NIS file(s).\nPlease update KUser settings (File Source Settings).") );
}
#ifdef GRMKDB
if( (nis_groups_written > 0) || (nisgroup_filename == group_filename) ) {
if (system(GRMKDB) != 0) {
KMessageBox::error( 0, i18n("Unable to build NIS group databases.") );
return FALSE;
}
}
#endif
return TRUE;
}
bool KGroupFiles::dbcommit()
{
bool ret;
mode_t mode;
kdDebug() << "KGroupFiles dbcommit" << endl;
mAddSucc.clear();
mDelSucc.clear();
mModSucc.clear();
if ( mDel.isEmpty() && mAdd.isEmpty() && mMod.isEmpty() )
return true;
mode = umask(0077);
ret = save();
umask( mode );
if ( !ret ) return false;
mDelSucc = mDel;
mAddSucc = mAdd;
mModSucc = mMod;
mDel.clear();
mAdd.clear();
mMod.clear();
return true;
}