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Simba/Units/Synapse/synamisc.pas
2010-03-13 16:33:04 +01:00

395 lines
12 KiB
ObjectPascal

{==============================================================================|
| Project : Ararat Synapse | 001.003.000 |
|==============================================================================|
| Content: misc. procedures and functions |
|==============================================================================|
| Copyright (c)1999-2010, Lukas Gebauer |
| All rights reserved. |
| |
| Redistribution and use in source and binary forms, with or without |
| modification, are permitted provided that the following conditions are met: |
| |
| Redistributions of source code must retain the above copyright notice, this |
| list of conditions and the following disclaimer. |
| |
| Redistributions in binary form must reproduce the above copyright notice, |
| this list of conditions and the following disclaimer in the documentation |
| and/or other materials provided with the distribution. |
| |
| Neither the name of Lukas Gebauer nor the names of its contributors may |
| be used to endorse or promote products derived from this software without |
| specific prior written permission. |
| |
| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR |
| ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH |
| DAMAGE. |
|==============================================================================|
| The Initial Developer of the Original Code is Lukas Gebauer (Czech Republic).|
| Portions created by Lukas Gebauer are Copyright (c) 2002-2010. |
| All Rights Reserved. |
|==============================================================================|
| Contributor(s): |
|==============================================================================|
| History: see HISTORY.HTM from distribution package |
| (Found at URL: http://www.ararat.cz/synapse/) |
|==============================================================================}
{:@abstract(Misc. network based utilities)}
{$IFDEF FPC}
{$MODE DELPHI}
{$ENDIF}
{$Q-}
{$H+}
{$IFDEF UNICODE}
{$WARN IMPLICIT_STRING_CAST OFF}
{$WARN IMPLICIT_STRING_CAST_LOSS OFF}
{$ENDIF}
unit synamisc;
interface
{$IFDEF VER125}
{$DEFINE BCB}
{$ENDIF}
{$IFDEF BCB}
{$ObjExportAll On}
{$HPPEMIT '#pragma comment( lib , "wininet.lib" )'}
{$ENDIF}
uses
synautil, blcksock, SysUtils, Classes,
{$IFDEF LINUX}
Libc;
{$ELSE}
Windows;
{$ENDIF}
Type
{:@abstract(This record contains information about proxy setting.)}
TProxySetting = record
Host: string;
Port: string;
Bypass: string;
end;
{:By this function you can turn-on computer on network, if this computer
supporting Wake-on-lan feature. You need MAC number (network card indentifier)
of computer for turn-on. You can also assign target IP addres. If you not
specify it, then is used broadcast for delivery magic wake-on packet. However
broadcasts workinh only on your local network. When you need to wake-up
computer on another network, you must specify any existing IP addres on same
network segment as targeting computer.}
procedure WakeOnLan(MAC, IP: string);
{:Autodetect current DNS servers used by system. If is defined more then one DNS
server, then result is comma-delimited.}
function GetDNS: string;
{:Autodetect InternetExplorer proxy setting for given protocol. This function
working only on windows!}
function GetIEProxy(protocol: string): TProxySetting;
{:Return all known IP addresses on local system. Addresses are divided by comma.}
function GetLocalIPs: string;
implementation
{==============================================================================}
procedure WakeOnLan(MAC, IP: string);
var
sock: TUDPBlockSocket;
HexMac: Ansistring;
data: Ansistring;
n: integer;
b: Byte;
begin
if MAC <> '' then
begin
MAC := ReplaceString(MAC, '-', '');
MAC := ReplaceString(MAC, ':', '');
if Length(MAC) < 12 then
Exit;
HexMac := '';
for n := 0 to 5 do
begin
b := StrToIntDef('$' + MAC[n * 2 + 1] + MAC[n * 2 + 2], 0);
HexMac := HexMac + char(b);
end;
if IP = '' then
IP := cBroadcast;
sock := TUDPBlockSocket.Create;
try
sock.CreateSocket;
sock.EnableBroadcast(true);
sock.Connect(IP, '9');
data := #$FF + #$FF + #$FF + #$FF + #$FF + #$FF;
for n := 1 to 16 do
data := data + HexMac;
sock.SendString(data);
finally
sock.Free;
end;
end;
end;
{==============================================================================}
{$IFNDEF LINUX}
function GetDNSbyIpHlp: string;
type
PTIP_ADDRESS_STRING = ^TIP_ADDRESS_STRING;
TIP_ADDRESS_STRING = array[0..15] of Ansichar;
PTIP_ADDR_STRING = ^TIP_ADDR_STRING;
TIP_ADDR_STRING = packed record
Next: PTIP_ADDR_STRING;
IpAddress: TIP_ADDRESS_STRING;
IpMask: TIP_ADDRESS_STRING;
Context: DWORD;
end;
PTFixedInfo = ^TFixedInfo;
TFixedInfo = packed record
HostName: array[1..128 + 4] of Ansichar;
DomainName: array[1..128 + 4] of Ansichar;
CurrentDNSServer: PTIP_ADDR_STRING;
DNSServerList: TIP_ADDR_STRING;
NodeType: UINT;
ScopeID: array[1..256 + 4] of Ansichar;
EnableRouting: UINT;
EnableProxy: UINT;
EnableDNS: UINT;
end;
const
IpHlpDLL = 'IPHLPAPI.DLL';
var
IpHlpModule: THandle;
FixedInfo: PTFixedInfo;
InfoSize: Longint;
PDnsServer: PTIP_ADDR_STRING;
err: integer;
GetNetworkParams: function(FixedInfo: PTFixedInfo; pOutPutLen: PULONG): DWORD; stdcall;
begin
InfoSize := 0;
Result := '...';
IpHlpModule := LoadLibrary(IpHlpDLL);
if IpHlpModule = 0 then
exit;
try
GetNetworkParams := GetProcAddress(IpHlpModule,PAnsiChar(AnsiString('GetNetworkParams')));
if @GetNetworkParams = nil then
Exit;
err := GetNetworkParams(Nil, @InfoSize);
if err <> ERROR_BUFFER_OVERFLOW then
Exit;
Result := '';
GetMem (FixedInfo, InfoSize);
try
err := GetNetworkParams(FixedInfo, @InfoSize);
if err <> ERROR_SUCCESS then
exit;
with FixedInfo^ do
begin
Result := DnsServerList.IpAddress;
PDnsServer := DnsServerList.Next;
while PDnsServer <> Nil do
begin
if Result <> '' then
Result := Result + ',';
Result := Result + PDnsServer^.IPAddress;
PDnsServer := PDnsServer.Next;
end;
end;
finally
FreeMem(FixedInfo);
end;
finally
FreeLibrary(IpHlpModule);
end;
end;
function ReadReg(SubKey, Vn: PChar): string;
var
OpenKey: HKEY;
DataType, DataSize: integer;
Temp: array [0..2048] of char;
begin
Result := '';
if RegOpenKeyEx(HKEY_LOCAL_MACHINE, SubKey, REG_OPTION_NON_VOLATILE,
KEY_READ, OpenKey) = ERROR_SUCCESS then
begin
DataType := REG_SZ;
DataSize := SizeOf(Temp);
if RegQueryValueEx(OpenKey, Vn, nil, @DataType, @Temp, @DataSize) = ERROR_SUCCESS then
SetString(Result, Temp, DataSize div SizeOf(Char) - 1);
RegCloseKey(OpenKey);
end;
end ;
{$ENDIF}
function GetDNS: string;
{$IFDEF LINUX}
var
l: TStringList;
n: integer;
begin
Result := '';
l := TStringList.Create;
try
l.LoadFromFile('/etc/resolv.conf');
for n := 0 to l.Count - 1 do
if Pos('NAMESERVER', uppercase(l[n])) = 1 then
begin
if Result <> '' then
Result := Result + ',';
Result := Result + SeparateRight(l[n], ' ');
end;
finally
l.Free;
end;
end;
{$ELSE}
const
NTdyn = 'System\CurrentControlSet\Services\Tcpip\Parameters\Temporary';
NTfix = 'System\CurrentControlSet\Services\Tcpip\Parameters';
W9xfix = 'System\CurrentControlSet\Services\MSTCP';
begin
Result := GetDNSbyIpHlp;
if Result = '...' then
begin
if Win32Platform = VER_PLATFORM_WIN32_NT then
begin
Result := ReadReg(NTdyn, 'NameServer');
if result = '' then
Result := ReadReg(NTfix, 'NameServer');
if result = '' then
Result := ReadReg(NTfix, 'DhcpNameServer');
end
else
Result := ReadReg(W9xfix, 'NameServer');
Result := ReplaceString(trim(Result), ' ', ',');
end;
end;
{$ENDIF}
{==============================================================================}
function GetIEProxy(protocol: string): TProxySetting;
{$IFDEF LINUX}
begin
Result.Host := '';
Result.Port := '';
Result.Bypass := '';
end;
{$ELSE}
type
PInternetProxyInfo = ^TInternetProxyInfo;
TInternetProxyInfo = packed record
dwAccessType: DWORD;
lpszProxy: LPCSTR;
lpszProxyBypass: LPCSTR;
end;
const
INTERNET_OPTION_PROXY = 38;
INTERNET_OPEN_TYPE_PROXY = 3;
WininetDLL = 'WININET.DLL';
var
WininetModule: THandle;
ProxyInfo: PInternetProxyInfo;
Err: Boolean;
Len: DWORD;
Proxy: string;
DefProxy: string;
ProxyList: TStringList;
n: integer;
InternetQueryOption: function (hInet: Pointer; dwOption: DWORD;
lpBuffer: Pointer; var lpdwBufferLength: DWORD): BOOL; stdcall;
begin
Result.Host := '';
Result.Port := '';
Result.Bypass := '';
WininetModule := LoadLibrary(WininetDLL);
if WininetModule = 0 then
exit;
try
InternetQueryOption := GetProcAddress(WininetModule,PAnsiChar(AnsiString('InternetQueryOptionA')));
if @InternetQueryOption = nil then
Exit;
if protocol = '' then
protocol := 'http';
Len := 4096;
GetMem(ProxyInfo, Len);
ProxyList := TStringList.Create;
try
Err := InternetQueryOption(nil, INTERNET_OPTION_PROXY, ProxyInfo, Len);
if Err then
if ProxyInfo^.dwAccessType = INTERNET_OPEN_TYPE_PROXY then
begin
ProxyList.CommaText := ReplaceString(ProxyInfo^.lpszProxy, ' ', ',');
Proxy := '';
DefProxy := '';
for n := 0 to ProxyList.Count -1 do
begin
if Pos(lowercase(protocol) + '=', lowercase(ProxyList[n])) = 1 then
begin
Proxy := SeparateRight(ProxyList[n], '=');
break;
end;
if Pos('=', ProxyList[n]) < 1 then
DefProxy := ProxyList[n];
end;
if Proxy = '' then
Proxy := DefProxy;
if Proxy <> '' then
begin
Result.Host := Trim(SeparateLeft(Proxy, ':'));
Result.Port := Trim(SeparateRight(Proxy, ':'));
end;
Result.Bypass := ReplaceString(ProxyInfo^.lpszProxyBypass, ' ', ',');
end;
finally
ProxyList.Free;
FreeMem(ProxyInfo);
end;
finally
FreeLibrary(WininetModule);
end;
end;
{$ENDIF}
{==============================================================================}
function GetLocalIPs: string;
var
TcpSock: TTCPBlockSocket;
ipList: TStringList;
begin
Result := '';
ipList := TStringList.Create;
try
TcpSock := TTCPBlockSocket.create;
try
TcpSock.ResolveNameToIP(TcpSock.LocalName, ipList);
Result := ipList.CommaText;
finally
TcpSock.Free;
end;
finally
ipList.Free;
end;
end;
{==============================================================================}
end.