view netinstall/root.cc @ 1346:01c57eb70ae9

[xemacs-hg @ 2003-03-09 02:27:27 by ben] To: xemacs-patches@xemacs.org i.c: Sleep between calls to check for I/O, since these calls are non-blocking. behavior.el: Allow other keywords for forward compatibility. cl-macs.el: Rewrite to eliminate byte-compiler warning when `return' is used without `finally'. cmdloop.el: Avoid truncated error messages for `end-of-file' and the like. cmdloop.el: Avoid char-int error after syncing. files.el: Eliminate byte-compile warnings. printer.el: Fix line-width calculations. #### This used to work. Someone's changes (perhaps by Michael Sperber?) seem to have messed something up. simple.el: Use new clear-left-side functions to avoid messages ending up on the same line as other output. xemacs.mak: Add override for info/ as well when separate source/build dirs. xemacs.mak: Order sections in main build process and add comments. Add additional dependencies to try and prevent later steps from happening when failures in earlier steps have occurred. Makefile.in.in: Order sections in main build process and add comments. Add additional dependencies to try and prevent later steps from happening when failures in earlier steps have occurred. alloc.c: Don't arbitrarily clear Vconfigure_info_directory since it messes up separate build/source dirs. console.c, console.h, device-msw.c, device.c: Add accidentally omitted msprinter console and data descriptions. print.c, console-msw.c: Add clear-left-side functionality to help keep stdio/stderr output from separate sources on separate lines. Generalize the different kinds of debugging output. Add dpa(). profile.c: Add better docs on Unix/Windows differences. regex.c: Fix problems with rel-alloc compilation caused by previous patch. emacs.c: Seg fault rather than abort on Cygwin, since gdb doesn't trap aborts properly. console-gtk-impl.h, console-gtk.h, console-msw.h, console-x-impl.h, console-x.h, dialog-gtk.c, dialog-x.c, event-msw.c, frame-gtk.c, frame-x.c, frameslots.h, glyphs-gtk.c, glyphs-x.c, gui-gtk.c, gui-x.c, inline.c, menubar-gtk.c, menubar-msw.c, menubar-x.c, scrollbar-gtk.c, scrollbar-x.c, ui-gtk.c: Delete popup-data object. Delete menubar_data field from frames, since its usage is frame-specific. Delete menubar-msw.h, gui-x.h, gui-gtk.h. Clean up handling of lwlib callback data GCPRO'ing and add missing GCPRO recomputation in widget code.
author ben
date Sun, 09 Mar 2003 02:27:46 +0000 (2003-03-09)
parents ce0b3f2eff35
children
line wrap: on
line source
/*
 * Copyright (c) 2000, Red Hat, Inc.
 *
 *     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.
 *
 *     A copy of the GNU General Public License can be found at
 *     http://www.gnu.org/
 *
 * Written by DJ Delorie <dj@cygnus.com>
 *
 */

/* The purpose of this file is to ask the user where they want the
   root of the installation to be, and to ask whether the user prefers
   text or binary mounts. */

#include "win32.h"
#include <shlobj.h>
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>

#include "dialog.h"
#include "resource.h"
#include "state.h"
#include "msg.h"
#include "regedit.h"
#include "reginfo.h"
#include "concat.h"
#include "log.h"

static int rb[] = { IDC_INSTALL_CYGWIN, IDC_INSTALL_NATIVE, 0 };
static int su[] = { IDC_ROOT_SYSTEM, IDC_ROOT_USER, 0 };

static void
check_if_enable_next (HWND h)
{
  EnableWindow (GetDlgItem (h, IDOK), install_type && root_dir && root_scope);
}

static void
load_dialog (HWND h)
{
  rbset (h, rb, install_type);
  rbset (h, su, root_scope);
  eset (h, IDC_ROOT_DIR, root_dir);
  check_if_enable_next (h);
}

static void
save_dialog (HWND h)
{
  install_type = rbget (h, rb);
  root_scope = rbget (h, su);
  char* new_root_dir = eget (h, IDC_ROOT_DIR, root_dir);

  if (!root_dir || strcmp (new_root_dir, root_dir) != 0)
    root_dir_default = 0;

  root_dir = new_root_dir;
}

/*
 * is_admin () determines whether or not the current user is a member of the
 * Administrators group.  On Windows 9X, the current user is considered an
 * Administrator by definition.
 */

static int
is_admin ()
{
  // Windows 9X users are considered Administrators by definition
  OSVERSIONINFO verinfo;
  verinfo.dwOSVersionInfoSize = sizeof (verinfo);
  GetVersionEx (&verinfo);
  if (verinfo.dwPlatformId != VER_PLATFORM_WIN32_NT)
    return 1;

  // Get the process token for the current process
  HANDLE token;
  BOOL status = OpenProcessToken (GetCurrentProcess(), TOKEN_QUERY, &token);
  if (!status)
    return 0;

  // Get the group token information
  UCHAR token_info[1024];
  PTOKEN_GROUPS groups = (PTOKEN_GROUPS) token_info;
  DWORD token_info_len = sizeof (token_info);
  status = GetTokenInformation (token, TokenGroups, token_info, token_info_len, &token_info_len);
  CloseHandle(token);
  if (!status)
    return 0;

  // Create the Administrators group SID
  PSID admin_sid;
  SID_IDENTIFIER_AUTHORITY authority = SECURITY_NT_AUTHORITY;
  status = AllocateAndInitializeSid (&authority, 2, SECURITY_BUILTIN_DOMAIN_RID, DOMAIN_ALIAS_RID_ADMINS, 0, 0, 0, 0, 0, 0, &admin_sid);
  if (!status)
    return 0;

  // Check to see if the user is a member of the Administrators group
  status = 0;
  for (UINT i=0; i<groups->GroupCount; i++) {
    if (EqualSid(groups->Groups[i].Sid, admin_sid)) {
      status = 1;
      break;
    }
  }

  // Destroy the Administrators group SID
  FreeSid (admin_sid);

  // Return whether or not the user is a member of the Administrators group
  return status;
}

static void
change_default_root (int id)
{
  int issystem;
  char* cygroot = find_cygwin_root (&issystem);
  if (id == IDC_INSTALL_CYGWIN && cygroot)
    {
      root_dir = concat (cygroot, XEMACS_CYGWIN_DEFAULT_ROOT, 0);
      install_type = IDC_INSTALL_CYGWIN;
    }
  else if (id == IDC_INSTALL_NATIVE)
    {
      char windir[_MAX_PATH];
      GetWindowsDirectory (windir, sizeof (windir));
      windir[2] = 0;
      root_dir = concat (windir, XEMACS_DEFAULT_ROOT, 0);
      install_type = IDC_INSTALL_NATIVE;
    }
}

static int CALLBACK
browse_cb (HWND h, UINT m, LPARAM lp, LPARAM data)
{
  switch (m)
    {
    case BFFM_INITIALIZED:
      if (root_dir)
	SendMessage (h, BFFM_SETSELECTION, TRUE, (LPARAM)root_dir);
      break;
    }
  return 0;
}

static void
browse (HWND h)
{
  BROWSEINFO bi;
  CHAR name[MAX_PATH];
  LPITEMIDLIST pidl;
  memset (&bi, 0, sizeof (bi));
  bi.hwndOwner = h;
  bi.pszDisplayName = name;
  bi.lpszTitle = "Select an installation root directory";
  bi.ulFlags = BIF_RETURNONLYFSDIRS;
  bi.lpfn = browse_cb;
  pidl = SHBrowseForFolder (&bi);
  if (pidl)
    {
      if (SHGetPathFromIDList (pidl, name))
	eset (h, IDC_ROOT_DIR, name);
    }
}

#define isslash(c) ((c) == '\\' || (c) == '/')

static int
directory_is_absolute ()
{
  if (isalpha (root_dir[0])
      && root_dir[1] == ':'
      && (root_dir[2] == '\\' || root_dir[2] == '/'))
    return 1;
  return 0;
}

static int
directory_is_rootdir ()
{
  char *c;
  for (c = root_dir; *c; c++)
    if (isslash (c[0]) && c[1] && !isslash (c[1]))
      return 0;
  return 1;
}

static int
cygwin_without_cygwin ()
{
  int issystem;
  if (install_type == IDC_INSTALL_CYGWIN
      && !find_cygwin_root (&issystem))
    return 1;
  return 0;
}

static BOOL
dialog_cmd (HWND h, int id, HWND hwndctl, UINT code)
{
  switch (id)
    {

    case IDC_ROOT_DIR:
    case IDC_ROOT_SYSTEM:
    case IDC_ROOT_USER:
      save_dialog (h);
      check_if_enable_next (h);
      break;

    case IDC_INSTALL_NATIVE:
    case IDC_INSTALL_CYGWIN:
      if (root_dir_default)
	{
	  change_default_root (id);
	  eset (h, IDC_ROOT_DIR, root_dir);
	}
      save_dialog (h);
      check_if_enable_next (h);
      break;

    case IDC_ROOT_BROWSE:
      browse (h);
      break;

    case IDOK:
      save_dialog (h);

      if (! directory_is_absolute ())
	{
	  note (IDS_ROOT_ABSOLUTE);
	  break;
	}

      if (directory_is_rootdir ())
	if (IDNO == yesno (IDS_ROOT_SLASH))
	  break;

      if (cygwin_without_cygwin ())
	if (IDNO == yesno (IDS_ROOT_NOCYGWIN))
	  break;

      create_xemacs_root (backslash (root_dir),
			  root_scope == IDC_ROOT_SYSTEM ? 1 : 0,
			  install_type == IDC_INSTALL_NATIVE ? 1 : 0);

      switch (source)
	{
	case IDC_SOURCE_NETINST:
	  NEXT (IDD_NET);
	  break;
	case IDC_SOURCE_CWD:
	  NEXT (IDD_S_FROM_CWD);
	  break;
	default:
	  msg ("source is default? %d\n", source);
	  NEXT (0);
	}
      break;

    case IDC_BACK:
      save_dialog (h);
      NEXT (IDD_LOCAL_DIR);
      break;

    case IDCANCEL:
      NEXT (0);
      break;
    }
  return FALSE;
}

static BOOL CALLBACK
dialog_proc (HWND h, UINT message, WPARAM wParam, LPARAM lParam)
{
  switch (message)
    {
    case WM_INITDIALOG:
      load_dialog (h);
      return FALSE;
    case WM_COMMAND:
      return HANDLE_WM_COMMAND (h, wParam, lParam, dialog_cmd);
    }
  return FALSE;
}

static void
set_default_root ()
{
  change_default_root (IDC_INSTALL_NATIVE);
  root_scope = (is_admin()) ? IDC_ROOT_SYSTEM : IDC_ROOT_USER;
  root_dir_default = 1;
}

void
do_root (HINSTANCE h)
{
  int rv = 0;
  // init will have read a previous root
  if (!root_dir)
    set_default_root ();

  rv = DialogBox (h, MAKEINTRESOURCE (IDD_ROOT), 0, dialog_proc);
  if (rv == -1)
    fatal (IDS_DIALOG_FAILED);

  log (0, "root: %s %s %s", root_dir,
       (install_type == IDC_INSTALL_NATIVE) ? "native" : "cygwin",
       (root_scope == IDC_ROOT_USER) ? "user" : "system");
}