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/* vi: ts=8 sts=4 sw=4
*
* $Id$
*
* This file is part of the KDE project, module tdesu.
* Copyright (C) 1999,2000 Geert Jansen <jansen@kde.org>
*
* This is free software; you can use this library under the GNU Library
* General Public License, version 2. See the file "COPYING.LIB" for the
* exact licensing terms.
*
* client.h: client to access tdesud.
*/
#ifndef __KDE_su_Client_h_Included__
#define __KDE_su_Client_h_Included__
#include <tqglobal.h>
#include <kdelibs_export.h>
#ifdef Q_OS_UNIX
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <tqcstring.h>
#include <tqvaluelist.h>
typedef TQValueList<TQCString> QCStringList;
/**
* A client class to access tdesud, the KDE su daemon. Kdesud can assist in
* password caching in two ways:
*
* @li For high security passwords, like for su and ssh, it executes the
* password requesting command for you. It feeds the password to the
* command, without ever returning it to you, the user. The daemon should
* be installed setgid nogroup, in order to be able to act as an inaccessible,
* trusted 3rd party.
* See exec, setPass, delCommand.
*
* @li For lower security passwords, like web and ftp passwords, it can act
* as a persistent storage for string variables. These variables are
* returned to the user, and the daemon doesn't need to be setgid nogroup
* for this.
* See setVar, delVar, delGroup.
*/
class KDESU_EXPORT KDEsuClient {
public:
KDEsuClient();
~KDEsuClient();
/**
* Lets tdesud execute a command. If the daemon does not have a password
* for this command, this will fail and you need to call setPass().
*
* @param command The command to execute.
* @param user The user to run the command as.
* @param options Extra options.
* @param env Extra environment variables.
* @return Zero on success, -1 on failure.
*/
int exec(const TQCString &command, const TQCString &user, const TQCString &options=0, const QCStringList &env=QCStringList());
/**
* Wait for the last command to exit and return the exit code.
* @return Exit code of last command, -1 on failure.
*/
int exitCode();
/**
* Set root's password, lasts one session.
*
* @param pass Root's password.
* @param timeout The time that a password will live.
* @return Zero on success, -1 on failure.
*/
int setPass(const char *pass, int timeout);
/**
* Set the target host (optional).
*/
int setHost(const TQCString &host);
/**
* Set the desired priority (optional), see StubProcess.
*/
int setPriority(int priority);
/**
* Set the desired scheduler (optional), see StubProcess.
*/
int setScheduler(int scheduler);
/**
* Remove a password for a user/command.
* @param command The command.
* @param user The user.
* @return zero on success, -1 on an error
*/
int delCommand(const TQCString &command, const TQCString &user);
/**
* Set a persistent variable.
* @param key The name of the variable.
* @param value Its value.
* @param timeout The timeout in seconds for this key. Zero means
* no timeout.
* @param group Make the key part of a group. See delGroup.
* @return zero on success, -1 on failure.
*/
int setVar(const TQCString &key, const TQCString &value, int timeout=0, const TQCString &group=0);
/**
* Get a persistent variable.
* @param key The name of the variable.
* @return Its value.
*/
TQCString getVar(const TQCString &key);
/**
* Gets all the keys that are membes of the given group.
* @param group the group name of the variables.
* @return a list of the keys in the group.
*/
TQValueList<TQCString> getKeys(const TQCString &group);
/**
* Returns true if the specified group exists is
* cached.
*
* @param group the group key
* @return true if the group is found
*/
bool findGroup(const TQCString &group);
/**
* Delete a persistent variable.
* @param key The name of the variable.
* @return zero on success, -1 on failure.
*/
int delVar(const TQCString &key);
/**
* Delete all persistent variables with the given key.
*
* A specicalized variant of delVar(TQCString) that removes all
* subsets of the cached varaibles given by @p key. In order for all
* cached variables related to this key to be deleted properly, the
* value given to the @p group argument when the setVar function
* was called, must be a subset of the argument given here and the key
*
* @note Simply supplying the group key here WILL not necessarily
* work. If you only have a group key, then use delGroup instead.
*
* @param special_key the name of the variable.
* @return zero on success, -1 on failure.
*/
int delVars(const TQCString &special_key);
/**
* Delete all persistent variables in a group.
*
* @param group the group name. See setVar.
* @return
*/
int delGroup(const TQCString &group);
/**
* Ping tdesud. This can be used for diagnostics.
* @return Zero on success, -1 on failure
*/
int ping();
/**
* Stop the daemon.
*/
int stopServer();
/**
* Try to start up tdesud
*/
int startServer();
/**
* Returns true if the server is safe (installed setgid), false otherwise.
*/
bool isServerSGID();
private:
int connect();
int sockfd;
TQCString sock;
int command(const TQCString &cmd, TQCString *result=0L);
TQCString escape(const TQCString &str);
class KDEsuClientPrivate;
KDEsuClientPrivate *d;
};
#endif //Q_OS_UNIX
#endif //__KDE_su_Client_h_Included__
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