"Update ERROR: Didn't recieve any data from Update URL"

[Spooky_]

On a fresh install, a forced update of anything results in something similar to:

MSI Updater: Local Version - "1"  |  Remote Version = "-1"
MSI Updater: Update File - "http://wizzup.org/static/srl/msi.tar.bz2"
MSI Updater: Downloading...
MSI Update ERROR: Didn't recieve any data from Update URL.

My ISP requires that I use their proxy server, perhaps Simba is not taking this into account?
Before you suggest it, I have already tried manually downloading the files, but this only leads to further problems.

[Markus]

Simba does not talk to proxy servers currently. Somewhere in some place there is support for them, but it isn't implemented.
Downloading the files manually should work though, if you can extract them. In the case of SRL: be sure to move the plugins to the Simba plugins folder. Besides that there shouldn't relaly be any problems. Mind sharing your problems so we help you solve it?

edit: might try this. Replace extensions/updater.sei with this, be sure to fill in the relevant constants at top of the file

const ProxyHost = '';
const ProxyPort = 0;

function GetPage(url : string) : string;
var
  c : integer;
begin
  c := InitializeHTTPClient(true);
  SetProxy(c, ProxyHost, ProxyPort);
  result := GetHTTPPage(c, url);
  FreeHTTPClient(c);
end;

const
  ATTACH_HOOK = 0;
  DETACH_HOOK = 1;
  CHECK_FOR_UPDATE = 2;
  BEFORE_UPDATE = 3;
  SUCCESS_UPDATE = 4;
  AFTER_UPDATE = 5;

type
  THookFunc = function(Param1: string; Param2: integer): boolean;
  THookArr = array[ATTACH_HOOK..AFTER_UPDATE] of THookFunc;
  TUpdater = record
    Name, URL, VersionURL, Folder: string;
    CreateMenu, NoMenuTimer, Locked: boolean;
    Hooks: THookArr;
    ViewMenuItem: TMenuItem;
    MainMenu, UpdateMenuItem, CheckMenuItem: TMenuItem;
    AutoMenu, AUpdateMenuItem, ACheckMenuItem: TMenuItem;
    SettingsMenu, TimerMenuItem, OverrideUpdateMenuItem: TMenuItem;
    Timer: TTimer;
  end;
  TUpdaterArr = array of TUpdater;

var
  UpdaterArr: TUpdaterArr;

function GetOVersion(Updater: TUpdater): integer;
begin
  Result := StrToIntDef(ExtractFromStr(GetPage(Updater.VersionURL), Numbers), -1);
end;

function GetLVersion(Updater: TUpdater): integer;
begin
  Result := StrToIntDef(ExtractFromStr(Settings.GetKeyValueDef(Updater.Name + '_Version', '-1'), Numbers), -1);
end;

procedure SetLVersion(Updater: TUpdater; Version: integer);
begin
  Settings.SetKeyValue(Updater.Name + '_Version', IntToStr(Version));
end;

procedure Update(const Sender: TObject; const I: integer);
var
  Cont, ExCont: string;
begin
  with UpdaterArr[I] do
  begin
    if (Locked) then
      Exit;

    if (Hooks[BEFORE_UPDATE] <> nil) then
      if (not (Hooks[BEFORE_UPDATE]('', I))) then
        Exit;

    Locked := True;

    WriteLn(Name + ' Updater: Local Version - "' + IntToStr(GetLVersion(UpdaterArr[I])) + '"  |  Remote Version = "' + IntToStr(GetOVersion(UpdaterArr[I])) + '"');
    WriteLn(Name + ' Updater: Update File - "' + URL + '"');
    WriteLn(Name + ' Updater: Downloading...');
    Cont := GetPage(URL);
    if (Cont <> '') then
    begin
      WriteLn(Name + ' Updater: Decompressing...');
      if (DecompressBZip2(Cont, ExCont, 4096)) then
      begin
        WriteLn(Name + ' Updater: Extracting...');
        if (UnTarEx(ExCont, Folder, True)) then
        begin
          if (Hooks[SUCCESS_UPDATE] <> nil) then
            if (not (Hooks[SUCCESS_UPDATE](ExCont, I))) then
            begin
              WriteLn(Name + ' Update ERROR: Kill recieved from Updater.');
              Exit;
            end;
          SetLVersion(UpdaterArr[I], GetOVersion(UpdaterArr[I]));
          WriteLn(Name + ' Update Successful!');
          if (CreateMenu) then
            UpdateMenuItem.Enabled := OverrideUpdateMenuItem.Checked;
        end else
          WriteLn(Name + ' Update ERROR: Couldn''t extract the tar archive.');
      end else
        WriteLn(Name + ' Update ERROR: Couldn''t decompress the bzip archive.');
    end else
      WriteLn(Name + ' Update ERROR: Didn''t recieve any data from Update URL.');

    Locked := False;
    if (Hooks[AFTER_UPDATE] <> nil) then
      if (not (Hooks[AFTER_UPDATE]('', I))) then
        Exit;
  end;
end;

procedure Tick(const Sender: TObject);
var
  I: integer;
  Name: string;
begin
  for I := 0 to High(UpdaterArr) + 1 do
    if (not (I = High(UpdaterArr) + 1)) then
    begin
      case Sender of
        UpdaterArr[I].Timer: Name := 'Timer';
        UpdaterArr[I].CheckMenuItem: Name := 'Check';
      end;
      if (not (Name = '')) then
        Break;
    end else
      Exit;

  if (UpdaterArr[I].Locked) then
    Exit;

  if (UpdaterArr[I].Hooks[CHECK_FOR_UPDATE] <> nil) then
    if (not (UpdaterArr[I].Hooks[CHECK_FOR_UPDATE](Name, I))) then
      Exit;

  if (GetLVersion(UpdaterArr[I]) < GetOVersion(UpdaterArr[I])) then
  begin
    WriteLn('You have a new update available for ' + UpdaterArr[I].Name + '!');

    if (UpdaterArr[I].CreateMenu) then
    begin
      UpdaterArr[I].UpdateMenuItem.Enabled := True;
      if (UpdaterArr[I].AUpdateMenuItem.Checked or (Sender = UpdaterArr[I].CheckMenuItem)) then
        Update(Sender, I);
    end else
      Update(Sender, I);
  end else
    if (Sender = UpdaterArr[I].CheckMenuItem) then
      WriteLn('No ' + UpdaterArr[I].Name + ' update available.');
end;

procedure Click(Sender: TObject);
var
  I: integer;
  Value: string;
begin
  for I := 0 to High(UpdaterArr) do
    with UpdaterArr[I] do
    begin
      case Sender of
        ViewMenuItem: begin
            ViewMenuItem.Checked := (not (ViewMenuItem.Checked));
            Settings.SetKeyValue(Name + '_Visible', Lowercase(BoolToStr(ViewMenuItem.Checked)));
            MainMenu.Visible := ViewMenuItem.Checked;
          end;
        UpdateMenuItem: Update(Sender, I);
        CheckMenuItem: Tick(Sender);
        AUpdateMenuItem, ACheckMenuItem, OverrideUpdateMenuItem: begin
            TMenuItem(Sender).Checked := (not (TMenuItem(Sender).Checked));
            Settings.SetKeyValue(UpdaterArr[I].Name + '_' + ExtractFromStr(TMenuItem(Sender).Caption, Letters), BoolToStr(TMenuItem(Sender).Checked));
            case Sender of
              OverrideUpdateMenuItem: UpdateMenuItem.Enabled := OverrideUpdateMenuItem.Checked;
              ACheckMenuItem: Timer.Enabled := ACheckMenuItem.Checked;
            end;
          end;
        TimerMenuItem: begin
            if (InputQuery(Name + ' Updater', 'What would you like the Timer Interval to be? (1 - 100000 seconds)', Value)) then
            begin
              Value := ExtractFromStr(Value, Numbers);
              if ((IntToStr(StrToIntDef(Value, -1)) = Value) and InRange(StrToIntDef(Value, -1), 1, 100000)) then
              begin
                Timer.Interval := StrToIntDef(Value, (Timer.Interval / 1000)) * 1000;
                TimerMenuItem.Caption := 'Timer Interval: ' + IntToStr(Timer.Interval / 1000);
                Settings.SetKeyValue(Name + '_TimerInterval', IntToStr(Timer.Interval));
              end;
            end;
          end;
      end;
    end;
end;

function InMenu(const Name: string; const Menu: TMenuItem; out Item: TMenuItem): boolean;
var
  I: integer;
begin
  for I := 0 to Menu.Count - 1 do
    if (Lowercase(Menu.Items[I].Caption) = Lowercase(Name)) then
    begin
      Result := True;
      Item := Menu.Items[I];
      Exit;
    end;
end;

function GetMenuByName(const Name: string; Menu: TMenuItem): TMenuItem;
begin
  if (not (InMenu(Name, Menu, Result))) then
  begin
    Result := TMenuItem.Create(Menu);
    Result.Caption := Name;
    Menu.Add(Result);
  end;
end;

function MoveMenuItem(Menu: TMenuItem; FromIndex, ToIndex: integer): TMenuItem;
var
  TempMenuItem: TMenuItem;
begin
  if (InRange(FromIndex, 0, Menu.Count - 1) and InRange(ToIndex, 0, Menu.Count - 1)) then
  begin
    TempMenuItem := Menu.Items[FromIndex];
    Menu.Delete(FromIndex);
    Menu.Insert(ToIndex, TempMenuItem);
    Result := Menu.Items[ToIndex];
  end;
end;

function GetIndex(Menu, MenuItem: TMenuItem): integer;
begin
  for Result := 0 to Menu.Count - 1 do
    if (Menu.Items[Result] = MenuItem) then
      Exit;
  Result := -1;
end;

function IsUpdateMenu(const Menu: TMenuItem): boolean;
var
  I: integer;
begin
  for I := 0 to Menu.Count - 1 do
    if (Menu.Items[I].Caption = 'Update') then
      Result := True;
end;

function AddUpdater(const IncludeName, UpdateURL, VerURL, ExFolder: string; const ShowMenu, TimerIfNoMenu: boolean; var ID: integer): boolean;
var
  Seperator: array[0..1] of TMenuItem;
  ViewMenu: TMenuItem;
begin
  ID := Length(UpdaterArr);
  SetLength(UpdaterArr, ID + 1);
  with UpdaterArr[ID] do
  begin
    Name := IncludeName;
    URL := UpdateURL;
    VersionURL := VerURL;
    Folder := ExFolder;
    CreateMenu := ShowMenu;
    NoMenuTimer := TimerIfNoMenu;

    if (CreateMenu) then
    begin
      ViewMenu := GetMenuByName('&View', Simba_MainMenu.Items);
      if (ViewMenu.Count = 4) then
      begin
        Seperator[0] := TMenuItem.Create(ViewMenu);
        Seperator[0].Caption := '-';
        ViewMenu.Add(Seperator[0])
      end;

      ViewMenuItem := GetMenuByName(Name + ' Menu', ViewMenu);
      ViewMenuItem.OnClick := @Click;
      ViewMenuItem.Checked := (LowerCase(Settings.GetKeyValueDef(Name + '_Visible', 'true')) = 'true');
      ViewMenuItem.Visible := False;

      MainMenu := GetMenuByName(Name, Simba_MainMenu.Items);
      MainMenu.Visible := False;
      if (IsUpdateMenu(MainMenu)) then
        Exit;

      if (MainMenu.Count > 0) then
      begin
        Seperator[1] := TMenuItem.Create(MainMenu);
        Seperator[1].Caption := '-';
        MainMenu.Add(Seperator[1])
      end;

      UpdateMenuItem := TMenuItem.Create(MainMenu);
      UpdateMenuItem.Caption := 'Update';
      UpdateMenuItem.OnClick := @Click;
      UpdateMenuItem.Enabled := (LowerCase(Settings.GetKeyValueDef(Name + '_OverrideUpdate', 'false')) = 'true');
      MainMenu.Add(UpdateMenuItem);

      CheckMenuItem := TMenuItem.Create(MainMenu);
      CheckMenuItem.Caption := 'Check for Update';
      CheckMenuItem.OnClick := @Click;
      MainMenu.Add(CheckMenuItem);

      AutoMenu := TMenuItem.Create(MainMenu);
      AutoMenu.Caption := 'Automatically ...';
      MainMenu.Add(AutoMenu);

      AUpdateMenuItem := TMenuItem.Create(AutoMenu);
      AUpdateMenuItem.Caption := 'Update';
      AUpdateMenuItem.OnClick := @Click;
      AUpdateMenuItem.Checked := (LowerCase(Settings.GetKeyValueDef(Name + '_Update', 'true')) = 'true');
      AutoMenu.Add(AUpdateMenuItem);

      ACheckMenuItem := TMenuItem.Create(AutoMenu);
      ACheckMenuItem.Caption := 'Check for Updates';
      ACheckMenuItem.OnClick := @Click;
      ACheckMenuItem.Checked := (LowerCase(Settings.GetKeyValueDef(Name + '_CheckforUpdates', 'true')) = 'true');
      AutoMenu.Add(ACheckMenuItem);

      SettingsMenu := TMenuItem.Create(MainMenu);
      SettingsMenu.Caption := 'Settings';
      MainMenu.Add(SettingsMenu);

      TimerMenuItem := TMenuItem.Create(SettingsMenu);
      TimerMenuItem.Caption := 'Timer Interval: ' + IntToStr(StrToIntDef(ExtractFromStr(Settings.GetKeyValueDef(Name + '_TimerInterval', '3600000'), Numbers), 3600000) / 1000);
      TimerMenuItem.OnClick := @Click;
      SettingsMenu.Add(TimerMenuItem);

      OverrideUpdateMenuItem := TMenuItem.Create(SettingsMenu);
      OverrideUpdateMenuItem.Caption := 'Override Update';
      OverrideUpdateMenuItem.OnClick := @Click;
      OverrideUpdateMenuItem.Checked := (LowerCase(Settings.GetKeyValueDef(Name + '_OverrideUpdate', 'false')) = 'true');
      SettingsMenu.Add(OverrideUpdateMenuItem);
    end;

    Timer := TTimer.Create(nil);
    Timer.Interval := StrToIntDef(ExtractFromStr(Settings.GetKeyValueDef(Name + '_TimerInterval', '3600000'), Numbers), 3600000);
    if (ShowMenu) then
      Timer.Enabled := ACheckMenuItem.Checked
    else
      Timer.Enabled := NoMenuTimer;
    Timer.OnTimer := @Tick;
  end;

  Result := True;
end;

{ procedure Free; //Doesn't Work
var
  I: integer;
begin
  for I := 0 to High(UpdaterArr) do
    with UpdaterArr[I] do
      if (Timer <> nil) then
        Timer.Free;
end; }

procedure Attach;
var
  I: integer;
begin
  for I := 0 to High(UpdaterArr) do
  begin
    if (UpdaterArr[I].Hooks[ATTACH_HOOK] <> nil) then
      UpdaterArr[I].Hooks[ATTACH_HOOK]('', I);

    if (UpdaterArr[I].CreateMenu) then
    begin
      UpdaterArr[I].ViewMenuItem.Visible := True;
      UpdaterArr[I].MainMenu.Visible := UpdaterArr[I].ViewMenuItem.Checked;
      UpdaterArr[I].Timer.Enabled := UpdaterArr[I].ACheckMenuItem.Checked;
    end else
      UpdaterArr[I].Timer.Enabled := UpdaterArr[I].NoMenuTimer;
    WriteLn(UpdaterArr[I].Name + ' Updater Enabled!');
  end;
end;

procedure Detach;
var
  I: integer;
begin
  for I := High(UpdaterArr) downto 0 do
  begin
    if (UpdaterArr[I].Hooks[DETACH_HOOK] <> nil) then
      UpdaterArr[I].Hooks[DETACH_HOOK]('', I);

    if (UpdaterArr[I].CreateMenu) then
    begin
      UpdaterArr[I].ViewMenuItem.Visible := False;
      UpdaterArr[I].MainMenu.Visible := False;
    end;
    UpdaterArr[I].Timer.Enabled := False;
    WriteLn(UpdaterArr[I].Name + ' Updater Disabled.');
  end;
end;

[Spooky_]

Well some of the update URLs are quite obvious, as they are added to the console when it attempts to update, but I know I'm missing out on some important files.
Here is what I see when I attempt to open MSI:

Current Simba version: 982
Latest Simba Version: -1
Script name will be: RunMe
formWriteln: Exception in Script: Plugin(libsmart32) has not been found

So it seems I'm missing a plugin, infact, my plugin directory is empty...
Read through some of the sources at C:\Simba\Extensions\srl.sex and I downloaded the plugins, fixed my SPS' path and now the MSI window is displayed.
You could call this "resolved", but it doesn't feel right; I know I could have missed something :l

E: Trying your suggestion now.

E2: Did you get this to compile/work? As I am receiving the following errors:

Loading extension C:\Simba\Extensions\extension.sex
Extension Disabled - Did not compile
[Error] C:\Simba\Includes\..\Extensions\Updater.sei(8:8): Unknown identifier 'InitializeHTTPClient' at line 8
Loading extension C:\Simba\Extensions\srl.sex
Extension Disabled - Did not compile
[Error] C:\Simba\Includes\..\Extensions\Updater.sei(8:8): Unknown identifier 'InitializeHTTPClient' at line 8

[Markus]

As I said, you need to move the plugins
http://wizzup.org/static/srl/simba_plugins.tar.bz2

[Spooky_]

My apologies, that part of your post was added with your edit, and wasn't made clear, so I missed it. I will attempt this now.

[Markus]

Na didn't test it at all. Looks like those functions aren't exported to plugins (they are to scripts). I'm sorry for the inconvenience.

[Spooky_]

I give up; I downloaded a program to force applications to use a proxy, and Simba crashses and throws an error.

I'll just get a friend to install and update it in a sandbox, but I wish there was a better method :/