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twoaday |
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/* GPGOEInit.c - GPGOE DLL Loader |
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* Copyright (C) 2001, 2002, 2006 Timo Schulz |
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* |
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* This file is part of GPGOE. |
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* |
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* GPGOE is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU Lesser General Public License as published by |
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* the Free Software Foundation; either version 2.1 of the License, or |
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* (at your option) any later version. |
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* |
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* GPGOE is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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*/ |
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twoaday |
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#ifdef HAVE_CONFIG_H |
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#include <config.h> |
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#endif |
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twoaday |
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#include <ctype.h> |
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twoaday |
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#include <windows.h> |
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twoaday |
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#include <tlhelp32.h> |
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#include <stdio.h> |
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twoaday |
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#include "resource.h" |
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twoaday |
18 |
/* Supported plug-in modes. */ |
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enum gpgoe_mode_t { |
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GPGOE_MODE_NORMAL = 0, |
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twoaday |
19 |
GPGOE_MODE_PLAINREPLY = 1, |
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GPGOE_MODE_CACHEPASS = 2 |
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twoaday |
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}; |
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twoaday |
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twoaday |
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/* DLL imports. */ |
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int gpgoe_initialize (void); |
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int gpgoe_remove (void); |
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void gpgoe_set_active_modes (int mode); |
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int gpgoe_get_active_modes (void); |
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/* Global module handle. */ |
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twoaday |
1 |
static HINSTANCE glob_hinst = NULL; |
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twoaday |
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/* Valid options for the plug-in. */ |
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twoaday |
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struct { |
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int decrypt_replies; |
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int cache_passwd; |
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} opt; |
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twoaday |
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/* String array of programs which are known to cause trouble |
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with GPGoe. */ |
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static const char *conflict_apps[] = { |
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"DUMMY", /* dummy entry. */ |
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"SPYXX.EXE", |
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twoaday |
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"FDM.EXE", /* fast download manager. */ |
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twoaday |
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NULL |
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}; |
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twoaday |
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twoaday |
18 |
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/* Enumerate all processes and figure out if a program |
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is running which could be a conflict for gpgoe. */ |
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static int |
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check_for_conflict_apps (void) |
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{ |
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PROCESSENTRY32 pe; |
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HANDLE hd; |
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BOOL next; |
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twoaday |
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size_t i; |
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int fnd; |
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twoaday |
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hd = CreateToolhelp32Snapshot (TH32CS_SNAPPROCESS, 0); |
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if (hd == (HANDLE)-1) |
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return 0; |
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memset (&pe, 0, sizeof (pe)); |
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pe.dwSize = sizeof (pe); |
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next = Process32First (hd, &pe); |
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twoaday |
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fnd = 0; |
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twoaday |
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while (next) { |
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for (i=0; i < strlen (pe.szExeFile); i++) |
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twoaday |
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pe.szExeFile[i] = (char)toupper (pe.szExeFile[i]); |
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twoaday |
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for (i=0; conflict_apps[i] != NULL; i++) { |
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if (strstr (pe.szExeFile, conflict_apps[i])) { |
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fnd = i; |
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break; |
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} |
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} |
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next = Process32Next (hd, &pe); |
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} |
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CloseHandle (hd); |
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return fnd; |
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} |
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/* Return -1 if there was a running instance of OE detected. */ |
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static int |
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outlook_is_running (void) |
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{ |
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if (!FindWindowEx (NULL, NULL, "Outlook Express Browser Class", NULL)) |
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return 0; |
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return -1; |
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} |
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twoaday |
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#if 0 |
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twoaday |
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/* Set the menu item @muid to the state @state. */ |
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void |
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set_menu_state (HMENU menu, UINT muid, UINT state) |
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{ |
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MENUITEMINFO mii; |
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memset (&mii, 0, sizeof (mii)); |
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mii.cbSize = sizeof (mii); |
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mii.fMask = MIIM_STATE; |
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mii.fState = state; |
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SetMenuItemInfo (menu, muid, FALSE, &mii); |
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} |
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twoaday |
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#endif |
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twoaday |
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/* Get an option with the name @name from the registry. */ |
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int |
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get_gpgoe_option (const char *name) |
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{ |
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HKEY hkey; |
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LONG err; |
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char val[32]; |
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DWORD type = 0, vallen = sizeof (val); |
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err = RegOpenKeyEx (HKEY_CURRENT_USER, "Software\\GNU\\GPGoe", 0, |
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KEY_READ, &hkey); |
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if (err != ERROR_SUCCESS) |
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return 0; |
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err = RegQueryValueEx (hkey, name, NULL, &type, (BYTE*)val, &vallen); |
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RegCloseKey (hkey); |
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if (err != ERROR_SUCCESS) |
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return 0; |
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return atoi (val); |
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} |
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/* Put an option with the name @name and the value @val in th registry. */ |
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int |
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put_gpgoe_option (const char *name, int val) |
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{ |
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HKEY hkey; |
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char buf[32]; |
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LONG err; |
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sprintf (buf, "%d", val); |
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err = RegOpenKeyEx (HKEY_CURRENT_USER, "Software\\GNU\\GPGoe", 0, |
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KEY_WRITE, &hkey); |
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if (err != ERROR_SUCCESS) |
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return -1; |
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err = RegSetValueEx (hkey, name, 0, REG_SZ, (BYTE *)buf, strlen (buf)); |
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RegCloseKey (hkey); |
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return err != ERROR_SUCCESS? -1 : 0; |
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} |
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/* Create the GPGoe registry if needed. */ |
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static int |
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create_registry_key (void) |
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{ |
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HKEY hkey; |
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LONG err; |
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err = RegOpenKeyEx (HKEY_CURRENT_USER, "Software\\GNU\\GPGoe", |
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0, KEY_READ, &hkey); |
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if (err == ERROR_SUCCESS) { |
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RegCloseKey (hkey); |
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return 0; |
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} |
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err = RegCreateKey (HKEY_CURRENT_USER, "Software\\GNU\\GPGoe", &hkey); |
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if (err != ERROR_SUCCESS) |
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return -1; |
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RegCloseKey (hkey); |
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return 0; |
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} |
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twoaday |
19 |
/* Dialog box procedure for setting preferences. */ |
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BOOL CALLBACK |
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prefs_dlg_proc (HWND dlg, UINT msg, WPARAM wparam, LPARAM lparam) |
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{ |
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int modes; |
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switch (msg) { |
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case WM_INITDIALOG: |
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CheckDlgButton (dlg, IDC_OPT_PLAINREPLY, |
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opt.decrypt_replies? BST_CHECKED : BST_UNCHECKED); |
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CheckDlgButton (dlg, IDC_OPT_CACHEPASS, |
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opt.cache_passwd? BST_CHECKED : BST_UNCHECKED); |
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SetForegroundWindow (dlg); |
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return TRUE; |
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case WM_COMMAND: |
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switch (LOWORD (wparam)) { |
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case IDOK: |
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opt.decrypt_replies = IsDlgButtonChecked (dlg, IDC_OPT_PLAINREPLY)? 1: 0; |
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opt.cache_passwd = IsDlgButtonChecked (dlg, IDC_OPT_CACHEPASS)? 1 : 0; |
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modes = gpgoe_get_active_modes (); |
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if (!opt.decrypt_replies) |
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gpgoe_set_active_modes (modes & (~GPGOE_MODE_PLAINREPLY)); |
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else |
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gpgoe_set_active_modes (GPGOE_MODE_PLAINREPLY); |
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if (!opt.cache_passwd) |
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gpgoe_set_active_modes (modes & (~GPGOE_MODE_CACHEPASS)); |
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else |
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gpgoe_set_active_modes (GPGOE_MODE_CACHEPASS); |
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if (outlook_is_running ()) |
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MessageBox (NULL, "You need to restart Outlook Express.", |
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"GPGOE Information", MB_ICONINFORMATION|MB_OK); |
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EndDialog (dlg, TRUE); |
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break; |
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case IDCANCEL: |
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EndDialog (dlg, FALSE); |
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break; |
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} |
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break; |
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} |
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return FALSE; |
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} |
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twoaday |
18 |
/* Main window procedure for the taskbar program. */ |
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twoaday |
1 |
LRESULT CALLBACK |
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twoaday |
19 |
gpgoe_main_proc (HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam) |
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twoaday |
23 |
{ |
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twoaday |
1 |
NOTIFYICONDATA NID; |
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twoaday |
18 |
POINT p; |
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HMENU hm, popup; |
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twoaday |
1 |
int id; |
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twoaday |
2 |
switch (msg) { |
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twoaday |
1 |
case WM_CREATE: |
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twoaday |
2 |
NID.cbSize = sizeof (NID); |
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twoaday |
18 |
NID.uFlags = NIF_MESSAGE | NIF_ICON | NIF_TIP; |
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twoaday |
1 |
NID.uCallbackMessage = WM_USER; |
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NID.hWnd = hwnd; |
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twoaday |
2 |
NID.hIcon = LoadIcon (glob_hinst, MAKEINTRESOURCE (IDI_GPGOE)); |
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twoaday |
23 |
strcpy (NID.szTip, "GPG for Outlook Express"); |
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twoaday |
1 |
Shell_NotifyIcon (NIM_ADD, &NID); |
| 249 |
twoaday |
18 |
DestroyIcon (NID.hIcon); |
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twoaday |
19 |
opt.decrypt_replies = get_gpgoe_option ("PlaintextReply"); |
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if (opt.decrypt_replies) |
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twoaday |
18 |
gpgoe_set_active_modes (GPGOE_MODE_PLAINREPLY); |
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twoaday |
19 |
opt.cache_passwd = get_gpgoe_option ("CachePassphrase"); |
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if (opt.cache_passwd) |
| 256 |
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gpgoe_set_active_modes (GPGOE_MODE_CACHEPASS); |
| 257 |
twoaday |
1 |
if (gpgoe_initialize ()) { |
| 258 |
twoaday |
23 |
MessageBox (hwnd, "Could not register GPG OE hook", |
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"Error", MB_ICONERROR|MB_OK); |
| 260 |
twoaday |
1 |
ExitProcess (0); |
| 261 |
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} |
| 262 |
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break; |
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case WM_DESTROY: |
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case WM_ENDSESSION: |
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twoaday |
19 |
put_gpgoe_option ("PlaintextReply", opt.decrypt_replies); |
| 267 |
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put_gpgoe_option ("CachePassphrase", opt.cache_passwd); |
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twoaday |
1 |
gpgoe_remove (); |
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twoaday |
2 |
Shell_NotifyIcon (NIM_DELETE, &NID); |
| 270 |
twoaday |
1 |
PostQuitMessage (0); |
| 271 |
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ExitProcess (0); |
| 272 |
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return 0; |
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| 274 |
twoaday |
18 |
case WM_COMMAND: |
| 275 |
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switch (LOWORD (wparam)) { |
| 276 |
twoaday |
19 |
case ID_INIT_PREFS: |
| 277 |
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DialogBoxParam (glob_hinst, (LPCTSTR)IDD_CONFIG, |
| 278 |
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GetDesktopWindow (), prefs_dlg_proc, 0); |
| 279 |
twoaday |
18 |
break; |
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| 281 |
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case ID_INIT_QUIT: |
| 282 |
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SendMessage (hwnd, WM_DESTROY, 0, 0); |
| 283 |
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break; |
| 284 |
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} |
| 285 |
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break; |
| 286 |
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| 287 |
twoaday |
1 |
case WM_USER: |
| 288 |
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switch (lparam) { |
| 289 |
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case WM_LBUTTONDBLCLK: |
| 290 |
twoaday |
2 |
SetForegroundWindow (hwnd); |
| 291 |
twoaday |
23 |
id = MessageBox (NULL, |
| 292 |
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"Remove the GPG OE plug-in from the system?", |
| 293 |
twoaday |
1 |
"Are you sure?", MB_YESNO|MB_ICONINFORMATION); |
| 294 |
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if (id == IDYES) |
| 295 |
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SendMessage (hwnd, WM_DESTROY, 0, 0); |
| 296 |
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break; |
| 297 |
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| 298 |
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case WM_RBUTTONUP: |
| 299 |
twoaday |
18 |
SetForegroundWindow (hwnd); |
| 300 |
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GetCursorPos (&p); |
| 301 |
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hm = LoadMenu (glob_hinst, MAKEINTRESOURCE (IDR_INIT)); |
| 302 |
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popup = GetSubMenu (hm, 0); |
| 303 |
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TrackPopupMenu (popup, TPM_RIGHTALIGN, p.x, p.y, 0, hwnd, NULL); |
| 304 |
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PostMessage (hwnd, WM_USER, 0, 0); |
| 305 |
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DestroyMenu (popup); |
| 306 |
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DestroyMenu (hm); |
| 307 |
twoaday |
1 |
break; |
| 308 |
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} |
| 309 |
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break; |
| 310 |
twoaday |
18 |
} |
| 311 |
twoaday |
1 |
|
| 312 |
twoaday |
2 |
return DefWindowProc (hwnd, msg, wparam, lparam); |
| 313 |
twoaday |
1 |
} |
| 314 |
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|
| 315 |
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| 316 |
twoaday |
18 |
/* Main entry function. */ |
| 317 |
twoaday |
1 |
int WINAPI |
| 318 |
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WinMain (HINSTANCE hinst, HINSTANCE prev, LPSTR cmdline, int cmd_show) |
| 319 |
|
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{ |
| 320 |
|
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WNDCLASS wc; |
| 321 |
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HWND hwnd; |
| 322 |
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MSG msg; |
| 323 |
twoaday |
18 |
int idx; |
| 324 |
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|
| 325 |
twoaday |
19 |
memset (&opt, 0, sizeof (opt)); |
| 326 |
twoaday |
18 |
idx = check_for_conflict_apps (); |
| 327 |
|
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if (idx > 0) { |
| 328 |
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char buf[256]; |
| 329 |
|
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_snprintf (buf, sizeof (buf)-1, |
| 330 |
|
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"GPGoe found an instance of a program which\n" |
| 331 |
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"might be effect the functionality of the plugin.\n" |
| 332 |
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"\n" |
| 333 |
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"Name of the process: %s\n" |
| 334 |
|
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"\n" |
| 335 |
|
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"Continue to load the plug-in?", conflict_apps[idx]); |
| 336 |
|
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idx = MessageBox (NULL, buf, "GPGOE Warning", MB_ICONWARNING|MB_YESNO); |
| 337 |
|
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if (idx == IDNO) |
| 338 |
|
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return 0; |
| 339 |
|
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} |
| 340 |
twoaday |
1 |
|
| 341 |
twoaday |
18 |
create_registry_key (); |
| 342 |
twoaday |
1 |
glob_hinst = hinst; |
| 343 |
|
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CreateMutex (NULL, 1, "GPGOE"); |
| 344 |
|
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if (GetLastError () == ERROR_ALREADY_EXISTS) |
| 345 |
|
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return 0; |
| 346 |
|
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|
| 347 |
twoaday |
2 |
memset (&wc, 0, sizeof(wc)); |
| 348 |
twoaday |
1 |
wc.hInstance = hinst; |
| 349 |
|
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wc.lpszClassName = "GPGOE"; |
| 350 |
|
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wc.lpfnWndProc = (WNDPROC)gpgoe_main_proc; |
| 351 |
twoaday |
2 |
if (!RegisterClass (&wc)) { |
| 352 |
twoaday |
18 |
MessageBox (NULL, "Couldn't register the window class", "Error", |
| 353 |
|
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MB_ICONERROR|MB_OK); |
| 354 |
|
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return 1; |
| 355 |
twoaday |
1 |
} |
| 356 |
|
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|
| 357 |
twoaday |
23 |
hwnd = CreateWindow ("GPGOE", "GPGOE", 0, 0, 0, 0, 0, |
| 358 |
|
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NULL, NULL, hinst, NULL); |
| 359 |
twoaday |
1 |
if (!hwnd) { |
| 360 |
twoaday |
23 |
MessageBox (NULL, "Could not create window", |
| 361 |
|
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"Error", MB_ICONERROR|MB_OK); |
| 362 |
twoaday |
1 |
return 1; |
| 363 |
|
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} |
| 364 |
|
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UpdateWindow (hwnd); |
| 365 |
|
|
while (GetMessage (&msg, hwnd, 0, 0)) { |
| 366 |
|
|
TranslateMessage (&msg); |
| 367 |
|
|
DispatchMessage (&msg); |
| 368 |
|
|
} |
| 369 |
|
|
return 0; |
| 370 |
|
|
} |
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