After lots of help I finnaly have a program wich should work as a proxy.
The problem is, as you may have guessed, it doesnt.
I tried this proxy on my own computer and all I got on my internet explorer is a white screen. After loading another page the proxy reported to have connected but then it hangs itself.
Here is the code:
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| unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, IdTCPServer, IdCmdTCPServer, IdHTTPProxyServer, IdBaseComponent,
IdComponent, IdCustomTCPServer, IdCustomHTTPServer, IdHTTPServer, IdContext,
IdTCPConnection, IdTCPClient, IdHTTP, StdCtrls;
type
TForm1 = class(TForm)
Server: TIdHTTPServer;
HTTP: TIdHTTP;
ListBox1: TListBox;
GroupBox1: TGroupBox;
Button1: TButton;
Edit1: TEdit;
Label1: TLabel;
Label2: TLabel;
Edit2: TEdit;
CheckBox1: TCheckBox;
CheckBox2: TCheckBox;
procedure ServerCommandGet(AContext: TIdContext;
ARequestInfo: TIdHTTPRequestInfo;
AResponseInfo: TIdHTTPResponseInfo);
procedure FormClose(Sender: TObject; var Action: TCloseAction);
procedure Button1Click(Sender: TObject);
procedure ServerConnect(AContext: TIdContext);
procedure ServerDisconnect(AContext: TIdContext);
private
public
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
procedure TForm1.ServerCommandGet(AContext: TIdContext;
ARequestInfo: TIdHTTPRequestInfo; AResponseInfo: TIdHTTPResponseInfo);
var
URL, stuff: string;
begin
URL := 'http://'+ARequestInfo.Host+ARequestInfo.Document;
try
while HTTP.Tag=1 do Application.ProcessMessages;
HTTP.Tag:=1;
stuff := HTTP.Get(URL);
AResponseInfo.ContentText := stuff;
AResponseInfo.ContentType := HTTP.Response.ContentType;
HTTP.Tag:=0;
application.ProcessMessages;
except
listbox1.Items.insert(0,'Error');
end;
listbox1.Items.Insert(0,URL+' Forwarded');
end;
procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);
begin
server.active := false;
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
server.DefaultPort := strtoint(edit1.text);
server.maxconnections := strtoint(edit2.text);
if checkbox1.Checked = true then
server.AutoStartSession := true;
if checkbox2.Checked = true then
server.KeepAlive := true;
edit1.enabled := false;
button1.Enabled := false;
edit2.Enabled := false;
checkbox1.enabled := false;
checkbox2.enabled := false;
server.Active := true;
end;
procedure TForm1.ServerConnect(AContext: TIdContext);
begin
listbox1.Items.insert(0,'Connected');
end;
procedure TForm1.ServerDisconnect(AContext: TIdContext);
begin
listbox1.Items.insert(0,'Disconnected');
end;
end.
|
The settings i used for the proxy:
port: 80
max connections: 1
keep alive: no
auto start session: no
The settings of internet explorer>extras>options>connection>lan button>
port: 80
ip: 127.0.0.1
The log report of proxy/iexplorer:
proxy:connect
proxy:error
proxy:forwarded
www.google.comproxy:disconnect
iexplorer:blank page (no error just all white)
>>> I load other page/same page again.
proxy:connect
>>> proxy hangs itself and doesnt respond
>>> iexplorer shows error page (site not found bla bla bla please refresh bla bla bla)
i figured the problem is that my proxy sends back a blank package but it does send back something. Another problem could be that the proxy and the iexplorer are on the same comp. I have no idea what causes the error on the second time. i tried changing max connects but nothing changes.
plese help
(also it would be nice if someone could tell me how to post the code in a window.)
thanks
Moderiert von 
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PROXY
