407 lines
13 KiB
Plaintext
407 lines
13 KiB
Plaintext
{==============================================================================|
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| Project : Ararat Synapse | 001.003.001 |
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|==============================================================================|
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| Content: misc. procedures and functions |
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|==============================================================================|
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| Copyright (c)1999-2010, Lukas Gebauer |
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| All rights reserved. |
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| |
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| Redistribution and use in source and binary forms, with or without |
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| modification, are permitted provided that the following conditions are met: |
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| Redistributions of source code must retain the above copyright notice, this |
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| list of conditions and the following disclaimer. |
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| Redistributions in binary form must reproduce the above copyright notice, |
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| this list of conditions and the following disclaimer in the documentation |
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| and/or other materials provided with the distribution. |
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| |
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| Neither the name of Lukas Gebauer nor the names of its contributors may |
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| be used to endorse or promote products derived from this software without |
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| specific prior written permission. |
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| |
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| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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| AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR |
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| ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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| DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
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| SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
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| CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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| LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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| OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH |
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| DAMAGE. |
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|==============================================================================|
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| The Initial Developer of the Original Code is Lukas Gebauer (Czech Republic).|
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| Portions created by Lukas Gebauer are Copyright (c) 2002-2010. |
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| All Rights Reserved. |
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|==============================================================================|
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| Contributor(s): |
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|==============================================================================|
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| History: see HISTORY.HTM from distribution package |
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| (Found at URL: http://www.ararat.cz/synapse/) |
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|==============================================================================}
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{:@abstract(Misc. network based utilities)}
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{$IFDEF FPC}
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{$MODE DELPHI}
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{$ENDIF}
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{$Q-}
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{$H+}
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//Kylix does not known UNIX define
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{$IFDEF LINUX}
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{$IFNDEF UNIX}
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{$DEFINE UNIX}
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{$ENDIF}
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{$ENDIF}
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{$TYPEDADDRESS OFF}
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{$IFDEF UNICODE}
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{$WARN IMPLICIT_STRING_CAST OFF}
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{$WARN IMPLICIT_STRING_CAST_LOSS OFF}
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{$ENDIF}
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unit synamisc;
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interface
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{$IFDEF VER125}
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{$DEFINE BCB}
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{$ENDIF}
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{$IFDEF BCB}
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{$ObjExportAll On}
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{$HPPEMIT '#pragma comment( lib , "wininet.lib" )'}
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{$ENDIF}
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uses
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synautil, blcksock, SysUtils, Classes
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{$IFDEF UNIX}
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{$IFNDEF FPC}
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, Libc
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{$ENDIF}
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{$ELSE}
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, Windows
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{$ENDIF}
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;
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Type
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{:@abstract(This record contains information about proxy setting.)}
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TProxySetting = record
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Host: string;
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Port: string;
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Bypass: string;
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end;
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{:By this function you can turn-on computer on network, if this computer
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supporting Wake-on-lan feature. You need MAC number (network card indentifier)
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of computer for turn-on. You can also assign target IP addres. If you not
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specify it, then is used broadcast for delivery magic wake-on packet. However
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broadcasts workinh only on your local network. When you need to wake-up
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computer on another network, you must specify any existing IP addres on same
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network segment as targeting computer.}
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procedure WakeOnLan(MAC, IP: string);
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{:Autodetect current DNS servers used by system. If is defined more then one DNS
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server, then result is comma-delimited.}
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function GetDNS: string;
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{:Autodetect InternetExplorer proxy setting for given protocol. This function
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working only on windows!}
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function GetIEProxy(protocol: string): TProxySetting;
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{:Return all known IP addresses on local system. Addresses are divided by comma.}
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function GetLocalIPs: string;
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implementation
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{==============================================================================}
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procedure WakeOnLan(MAC, IP: string);
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var
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sock: TUDPBlockSocket;
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HexMac: Ansistring;
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data: Ansistring;
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n: integer;
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b: Byte;
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begin
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if MAC <> '' then
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begin
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MAC := ReplaceString(MAC, '-', '');
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MAC := ReplaceString(MAC, ':', '');
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if Length(MAC) < 12 then
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Exit;
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HexMac := '';
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for n := 0 to 5 do
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begin
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b := StrToIntDef('$' + MAC[n * 2 + 1] + MAC[n * 2 + 2], 0);
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HexMac := HexMac + char(b);
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end;
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if IP = '' then
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IP := cBroadcast;
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sock := TUDPBlockSocket.Create;
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try
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sock.CreateSocket;
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sock.EnableBroadcast(true);
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sock.Connect(IP, '9');
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data := #$FF + #$FF + #$FF + #$FF + #$FF + #$FF;
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for n := 1 to 16 do
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data := data + HexMac;
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sock.SendString(data);
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finally
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sock.Free;
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end;
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end;
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end;
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{==============================================================================}
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{$IFNDEF UNIX}
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function GetDNSbyIpHlp: string;
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type
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PTIP_ADDRESS_STRING = ^TIP_ADDRESS_STRING;
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TIP_ADDRESS_STRING = array[0..15] of Ansichar;
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PTIP_ADDR_STRING = ^TIP_ADDR_STRING;
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TIP_ADDR_STRING = packed record
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Next: PTIP_ADDR_STRING;
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IpAddress: TIP_ADDRESS_STRING;
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IpMask: TIP_ADDRESS_STRING;
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Context: DWORD;
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end;
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PTFixedInfo = ^TFixedInfo;
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TFixedInfo = packed record
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HostName: array[1..128 + 4] of Ansichar;
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DomainName: array[1..128 + 4] of Ansichar;
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CurrentDNSServer: PTIP_ADDR_STRING;
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DNSServerList: TIP_ADDR_STRING;
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NodeType: UINT;
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ScopeID: array[1..256 + 4] of Ansichar;
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EnableRouting: UINT;
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EnableProxy: UINT;
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EnableDNS: UINT;
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end;
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const
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IpHlpDLL = 'IPHLPAPI.DLL';
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var
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IpHlpModule: THandle;
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FixedInfo: PTFixedInfo;
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InfoSize: Longint;
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PDnsServer: PTIP_ADDR_STRING;
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err: integer;
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GetNetworkParams: function(FixedInfo: PTFixedInfo; pOutPutLen: PULONG): DWORD; stdcall;
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begin
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InfoSize := 0;
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Result := '...';
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IpHlpModule := LoadLibrary(IpHlpDLL);
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if IpHlpModule = 0 then
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exit;
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try
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GetNetworkParams := GetProcAddress(IpHlpModule,PAnsiChar(AnsiString('GetNetworkParams')));
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if @GetNetworkParams = nil then
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Exit;
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err := GetNetworkParams(Nil, @InfoSize);
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if err <> ERROR_BUFFER_OVERFLOW then
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Exit;
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Result := '';
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GetMem (FixedInfo, InfoSize);
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try
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err := GetNetworkParams(FixedInfo, @InfoSize);
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if err <> ERROR_SUCCESS then
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exit;
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with FixedInfo^ do
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begin
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Result := DnsServerList.IpAddress;
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PDnsServer := DnsServerList.Next;
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while PDnsServer <> Nil do
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begin
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if Result <> '' then
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Result := Result + ',';
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Result := Result + PDnsServer^.IPAddress;
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PDnsServer := PDnsServer.Next;
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end;
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end;
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finally
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FreeMem(FixedInfo);
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end;
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finally
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FreeLibrary(IpHlpModule);
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end;
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end;
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function ReadReg(SubKey, Vn: PChar): string;
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var
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OpenKey: HKEY;
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DataType, DataSize: integer;
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Temp: array [0..2048] of char;
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begin
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Result := '';
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if RegOpenKeyEx(HKEY_LOCAL_MACHINE, SubKey, REG_OPTION_NON_VOLATILE,
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KEY_READ, OpenKey) = ERROR_SUCCESS then
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begin
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DataType := REG_SZ;
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DataSize := SizeOf(Temp);
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if RegQueryValueEx(OpenKey, Vn, nil, @DataType, @Temp, @DataSize) = ERROR_SUCCESS then
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SetString(Result, Temp, DataSize div SizeOf(Char) - 1);
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RegCloseKey(OpenKey);
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end;
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end ;
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{$ENDIF}
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function GetDNS: string;
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{$IFDEF UNIX}
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var
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l: TStringList;
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n: integer;
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begin
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Result := '';
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l := TStringList.Create;
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try
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l.LoadFromFile('/etc/resolv.conf');
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for n := 0 to l.Count - 1 do
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if Pos('NAMESERVER', uppercase(l[n])) = 1 then
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begin
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if Result <> '' then
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Result := Result + ',';
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Result := Result + SeparateRight(l[n], ' ');
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end;
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finally
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l.Free;
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end;
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end;
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{$ELSE}
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const
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NTdyn = 'System\CurrentControlSet\Services\Tcpip\Parameters\Temporary';
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NTfix = 'System\CurrentControlSet\Services\Tcpip\Parameters';
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W9xfix = 'System\CurrentControlSet\Services\MSTCP';
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begin
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Result := GetDNSbyIpHlp;
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if Result = '...' then
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begin
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if Win32Platform = VER_PLATFORM_WIN32_NT then
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begin
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Result := ReadReg(NTdyn, 'NameServer');
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if result = '' then
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Result := ReadReg(NTfix, 'NameServer');
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if result = '' then
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Result := ReadReg(NTfix, 'DhcpNameServer');
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end
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else
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Result := ReadReg(W9xfix, 'NameServer');
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Result := ReplaceString(trim(Result), ' ', ',');
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end;
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end;
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{$ENDIF}
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{==============================================================================}
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function GetIEProxy(protocol: string): TProxySetting;
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{$IFDEF UNIX}
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begin
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Result.Host := '';
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Result.Port := '';
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Result.Bypass := '';
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end;
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{$ELSE}
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type
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PInternetProxyInfo = ^TInternetProxyInfo;
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TInternetProxyInfo = packed record
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dwAccessType: DWORD;
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lpszProxy: LPCSTR;
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lpszProxyBypass: LPCSTR;
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end;
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const
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INTERNET_OPTION_PROXY = 38;
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INTERNET_OPEN_TYPE_PROXY = 3;
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WininetDLL = 'WININET.DLL';
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var
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WininetModule: THandle;
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ProxyInfo: PInternetProxyInfo;
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Err: Boolean;
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Len: DWORD;
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Proxy: string;
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DefProxy: string;
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ProxyList: TStringList;
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n: integer;
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InternetQueryOption: function (hInet: Pointer; dwOption: DWORD;
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lpBuffer: Pointer; var lpdwBufferLength: DWORD): BOOL; stdcall;
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begin
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Result.Host := '';
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Result.Port := '';
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Result.Bypass := '';
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WininetModule := LoadLibrary(WininetDLL);
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if WininetModule = 0 then
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exit;
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try
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InternetQueryOption := GetProcAddress(WininetModule,PAnsiChar(AnsiString('InternetQueryOptionA')));
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if @InternetQueryOption = nil then
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Exit;
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if protocol = '' then
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protocol := 'http';
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Len := 4096;
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GetMem(ProxyInfo, Len);
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ProxyList := TStringList.Create;
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try
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Err := InternetQueryOption(nil, INTERNET_OPTION_PROXY, ProxyInfo, Len);
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if Err then
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if ProxyInfo^.dwAccessType = INTERNET_OPEN_TYPE_PROXY then
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begin
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ProxyList.CommaText := ReplaceString(ProxyInfo^.lpszProxy, ' ', ',');
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Proxy := '';
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DefProxy := '';
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for n := 0 to ProxyList.Count -1 do
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begin
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if Pos(lowercase(protocol) + '=', lowercase(ProxyList[n])) = 1 then
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begin
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Proxy := SeparateRight(ProxyList[n], '=');
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break;
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end;
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if Pos('=', ProxyList[n]) < 1 then
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DefProxy := ProxyList[n];
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end;
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if Proxy = '' then
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Proxy := DefProxy;
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if Proxy <> '' then
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begin
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Result.Host := Trim(SeparateLeft(Proxy, ':'));
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Result.Port := Trim(SeparateRight(Proxy, ':'));
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end;
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Result.Bypass := ReplaceString(ProxyInfo^.lpszProxyBypass, ' ', ',');
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end;
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finally
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ProxyList.Free;
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FreeMem(ProxyInfo);
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end;
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finally
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FreeLibrary(WininetModule);
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end;
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end;
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{$ENDIF}
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{==============================================================================}
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function GetLocalIPs: string;
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var
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TcpSock: TTCPBlockSocket;
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ipList: TStringList;
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begin
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Result := '';
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ipList := TStringList.Create;
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try
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TcpSock := TTCPBlockSocket.create;
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try
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TcpSock.ResolveNameToIP(TcpSock.LocalName, ipList);
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Result := ipList.CommaText;
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finally
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TcpSock.Free;
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end;
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finally
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ipList.Free;
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end;
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end;
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{==============================================================================}
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end.
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