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(*
Tux Commander - UCoreClasses - Some useful core classes
Copyright (C) 2007 Tomas Bzatek <tbzatek@users.sourceforge.net>
Check for updates on tuxcmd.sourceforge.net
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*)
unit UCoreClasses;
interface
uses lazglib2, lazgobject2, lazgtk3, SysUtils, Classes, ULibc, IniFiles, GTKStdCtrls, GTKPixbuf;
type TSystemUser = class
public
UserName, FullName, HomeDir, LoginShell: string;
UID, GID: Cardinal;
end;
TSystemGroup = class
public
GroupName: string;
GID: Cardinal;
Users: TStrings;
end;
TUserManager = class
private
public
UserList, GroupList: TList;
constructor Create;
destructor Destroy; override;
function GetUserName(UID: Cardinal; const ShowNA: boolean = True): string;
function GetGroupName(GID: Cardinal; const ShowNA: boolean = True): string;
end;
TMyIniFile = class(TIniFile)
private
FReadOnly: boolean;
public
constructor Create(const AFileName: string; ReadOnly: boolean); override;
procedure UpdateFile; override;
end;
implementation
uses GTKForms, ULocale, UCoreUtils;
(********************************************************************************************************************************)
(********************************************************************************************************************************)
constructor TUserManager.Create;
var pwd: PPasswd;
User: TSystemUser;
grp: PGroup;
Group: TSystemGroup;
i: integer;
begin
inherited Create;
UserList := TList.Create;
GroupList := TList.Create;
// Load and process /etc/passwd
try
setpwent;
pwd := getpwent;
while pwd <> nil do begin
User := TSystemUser.Create;
User.UserName := String(StrToUTF8(pwd^.pw_name));
User.FullName := String(StrToUTF8(pwd^.pw_gecos));
User.HomeDir := String(StrToUTF8(pwd^.pw_dir));
User.LoginShell := String(StrToUTF8(pwd^.pw_shell));
User.UID := pwd^.pw_uid;
User.GID := pwd^.pw_gid;
UserList.Add(User);
pwd := getpwent;
end;
endpwent;
except end;
// Load and process /etc/group
try
setgrent;
grp := getgrent;
while grp <> nil do begin
Group := TSystemGroup.Create;
Group.GroupName := String(StrToUTF8(grp^.gr_name));
Group.GID := grp^.gr_gid;
Group.Users := TStringList.Create;
if grp^.gr_mem^ <> nil then begin
i := 0;
repeat
Group.Users.Add(String(StrToUTF8(PCharArray(grp^.gr_mem^)[i])));
Inc(i);
until PCharArray(grp^.gr_mem^)[i] = nil;
end;
GroupList.Add(Group);
grp := getgrent;
end;
endgrent;
except end;
end;
destructor TUserManager.Destroy;
var i: integer;
begin
if UserList.Count > 0 then
for i := UserList.Count - 1 downto 0 do begin
TSystemUser(UserList[i]).Free;
UserList.Delete(i);
end;
UserList.Clear;
UserList.Free;
if GroupList.Count > 0 then
for i := GroupList.Count - 1 downto 0 do begin
TSystemGroup(GroupList[i]).Users.Clear;
TSystemGroup(GroupList[i]).Users.Free;
TSystemGroup(GroupList[i]).Free;
GroupList.Delete(i);
end;
GroupList.Clear;
GroupList.Free;
inherited Destroy;
end;
function TUserManager.GetUserName(UID: Cardinal; const ShowNA: boolean = True): string;
var i: integer;
begin
if ShowNA then Result := 'N/A'
else Result := IntToStr(UID);
if UserList.Count > 0 then
for i := 0 to UserList.Count - 1 do
if TSystemUser(UserList[i]).UID = UID then begin
Result := TSystemUser(UserList[i]).UserName;
Break;
end;
end;
function TUserManager.GetGroupName(GID: Cardinal; const ShowNA: boolean = True): string;
var i: integer;
begin
if ShowNA then Result := 'N/A'
else Result := IntToStr(GID);
if GroupList.Count > 0 then
for i := 0 to GroupList.Count - 1 do
if TSystemGroup(GroupList[i]).GID = GID then begin
Result := TSystemGroup(GroupList[i]).GroupName;
Break;
end;
end;
(********************************************************************************************************************************)
(********************************************************************************************************************************)
constructor TMyIniFile.Create(const AFileName: string; ReadOnly: boolean);
begin
FReadOnly := ReadOnly;
inherited Create(AFileName);
end;
procedure TMyIniFile.UpdateFile;
begin
if not FReadOnly then inherited UpdateFile;
end;
(********************************************************************************************************************************)
end.
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