trunk/Src/WinPT.cpp

/* WinPT.cpp - Windows Privacy Tray (WinPT)
 *      Copyright (C) 2000-2005 Timo Schulz
 *
 * This file is part of WinPT.
 *
 * WinPT 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.
 * 
 * WinPT is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with WinPT; if not, write to the Free Software Foundation, 
 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
 */
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <windows.h>

#include "resource.h"
#include "wptTypes.h"
#include "wptW32API.h"
#include "wptVersion.h"
#include "wptErrors.h"
#include "wptGPG.h"
#include "wptRegistry.h"
#include "wptCommonCtl.h"
#include "wptDlgs.h"
#include "wptNLS.h"
#include "wptKeyserver.h"
#include "wptCard.h"
#include "wptFileManager.h"
#include "wptContext.h"
#include "wptCardEdit.h"
#include "wptCrypto.h"

#define MIN_GPG_VER   "1.4.2"   /* Minimal GPG version. */
#define MIN_GPGME_VER "1.2.0"   /* Minimal GPGME version. */


HINSTANCE glob_hinst;   /* global instance for the dialogs */
HWND glob_hwnd;         /* global window handle for the dialogs */
HWND activ_hwnd;
LOCK mo_file;
int scard_support = 0;
int debug = 0;
int mobile = 0;
int gpg_read_only = 0;
char gpgver[3];


/* Load the key cache and rebuild the signature cache. */
static void
update_keycache (HWND hwnd)
{
    refresh_cache_s rcs = {0};
    rcs.kr_reload = 0; 
    rcs.kr_update = 1;
    rcs.tr_update = 1;
    DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_KEYCACHE, hwnd,
                    keycache_dlg_proc, (LPARAM)&rcs);
}


/* Set GPGME debug mode. If @val is 0, the debug mode is disabled. */
void
gpg_set_debug_mode (int val)
{       
    if (val)
        putenv ("GPGME_DEBUG=5:gpgme.dbg");
    else
        putenv ("GPGME_DEBUG=");
}


/* Return the name of the gettext language file. */
static char*
get_gettext_lang (void)
{    
    char *fname;
    fname = get_reg_entry_mo ();
    if (!fname)
        return NULL;
    return fname;
}


/* Initialize the gettext sub system. */
static void
load_gettext (int prev_inst)
{
    char *nls = NULL;
    char *file = NULL;

    nls = get_gettext_lang ();
    if (nls) {
        set_gettext_file ("winpt", nls);
        file = make_filename (nls, "winpt", "mo");
        if (!file_exist_check (nls) && init_file_lock (&mo_file, file))  {
            if (!prev_inst)
                msg_box (NULL, _("Could not initizalize file lock.\n"
                                 "Native Language Support"),
                         _("WinPT Error"), MB_ERR);
        }
        free_if_alloc (nls);
        free_if_alloc (file);
    }
}


/* check if the default key from the gpg.conf file is available in the
   keyring. if not, bail out because encryption won't work properly then. */
static int
check_default_key (gpg_keycache_t kc)
{
    gpgme_key_t key;
    gpgme_error_t err = GPG_ERR_NO_ERROR;
    char * defkey;

    defkey = get_gnupg_default_key ();
    if (defkey)
        err = gpg_keycache_find_key (kc, defkey, 0, &key);
    else
        msg_box (NULL, _("No useable secret key found."), _("WinPT Error"), MB_ERR);
    free_if_alloc (defkey);
    return err? -1 : 0;
}


/* Return the WinPT program file name (with full pathname). */
static const char *
get_prog_part (const char * fname, int use_cwd)
{
    static char program[512];
    char currdir[256];
    char *cmd = NULL;
    int j;
        
    memset (currdir, 0, DIM (currdir));
    memset (program, 0, DIM (program));
        
    if (use_cwd) {
        GetCurrentDirectory (DIM (currdir)-1, currdir);
        _snprintf (program, DIM (program)-1, "%s\\%s", currdir, fname);
    } 
    else {
        cmd = GetCommandLine ();
        if (cmd == NULL)
            return NULL;
        strncpy (currdir, cmd, sizeof (currdir)-1);
        j = strlen (currdir);
        while (j--) {
            if (currdir[j] == '\\')
                break;
        }
        currdir[j] = 0;
        _snprintf (program, DIM (program)-1, "%s\\%s", currdir + 1, fname);
    }
    return program;
}


/* Check that the underlying crypto engine fullfills the minimal
   requirements so all commands work properly. */
static int
check_crypto_engine (void)
{
    int ma=1, mi=4, pa=2; /* GPG 1.4.2 */
    int rc;

    rc = check_gnupg_engine (&ma, &mi, &pa);
    if (rc == -1) {
        msg_box (NULL, _("Could not read GnuPG version."), 
                 _("WinPT Error"), MB_ERR);
        return rc;
    }
    else if (rc) {
        log_box (_("WinPT Error"), MB_ERR,
                 _("Sorry, you need a newer GPG version.\n"
                   "GPG version %d.%d.%d required GPG version "MIN_GPG_VER),
                   ma, mi, pa);
        return rc;
    }
    /* We enable smartcard support for GPG: >= 2 or >= 1.4.3 */
    if (ma > 1 || pa >= 3)
        scard_support = 1;

    gpgver[0] = ma;
    gpgver[1] = mi;
    gpgver[2] = pa;
    return rc;
}


/* Try to load the keyserver config file. If @quiet is 1
   do not show any errors. */
static int
load_keyserver_conf (int quiet)
{
    const char * t;
    int rc;

    if (reg_prefs.kserv_conf)
        t = reg_prefs.kserv_conf;
    else if (!file_exist_check (get_prog_part ("keyserver.conf", 0)))
        t = get_prog_part ("keyserver.conf", 0);
    else 
        t = "keyserver.conf";
    rc = kserver_load_conf (t);
    if (rc && !quiet)
        msg_box (NULL, winpt_strerror (rc), _("Keyserver"), MB_ERR);
    return rc;
}


/* Enable the mobility mode. */
static void
enable_mobile_mode (void)
{
    memset (&reg_prefs, 0, sizeof (reg_prefs));
    reg_prefs.always_trust = 0;
    reg_prefs.auto_backup = 0;
    reg_prefs.cache_time = 0;
    reg_prefs.expert = 0;
    reg_prefs.keylist_mode = 1;
    reg_prefs.kserv_conf = m_strdup ("keyserver.conf");
    reg_prefs.no_zip_mmedia = 1;
    reg_prefs.use_tmpfiles = 1;
    reg_prefs.word_wrap = 80;
    reg_prefs.use_viewer = 0; /* XXX */
}

char* multi_gnupg_path (void);

const char * fm_get_file_type (const char *fname, int *r_type);

/* Main entry point. */
int WINAPI
WinMain (HINSTANCE hinst, HINSTANCE hprev, LPSTR cmdline, int showcmd)
{
    WNDCLASS wc = {0, winpt_main_proc, 0, 0, hinst, 0, 0, 0, 0, PGM_NAME};
    HACCEL accel_tab;
    int rc, ec, created = 0, nfiles = 0;
    int first_start = 0, start_gpgprefs = 0;
    int winpt_inst_found = 0;
    const char *s;
    MSG msg;
    HWND hwnd = NULL;

    glob_hinst = hinst;

    if (cmdline && stristr (cmdline, "--stop")) {
        hwnd = FindWindow ("WinPT", "WinPT");
        if (hwnd != NULL)
            PostMessage (hwnd, WM_DESTROY, 0, 0);
        return 0;
    }
    
#ifdef _DEBUG
    gpg_set_debug_mode (1);
    debug = 1;
#endif

    if (gpg_md_selftest ()) {
        msg_box (NULL, _("Cryptographic selftest failed."),
                 _("WinPT Error"), MB_ERR);
        return 0;
    }

    s = gpgme_check_version (MIN_GPGME_VER);
    if (!s || !*s) {
        msg_box (NULL, _("A newer GPGME version is needed; at least "MIN_GPGME_VER),
                 _("WinPT Error"), MB_ERR);
        return 0;
    }

    CreateMutex (NULL, TRUE, PGM_NAME);
    if (GetLastError () == ERROR_ALREADY_EXISTS)
        winpt_inst_found = 1;

    if (cmdline && stristr (cmdline, "--mobile")) {
        msg_box (NULL, "WARNING: mobile modus is not fully implemented yet!", 
                 "WinPT", MB_INFO);
        mobile = 1;
    }

    set_default_kserver ();

    if (!mobile) {
        regist_inst_gnupg (1);
        regist_inst_winpt (1, &created);
    }
    else {
        enable_mobile_mode ();
        /* XXX: ask for GPG path */
        created = 1; /* Disable registry writing */
    }

    if (!created) {
        memset (&reg_prefs, 0, sizeof (reg_prefs));
        reg_prefs.use_tmpfiles = 1; /* default */
        reg_prefs.fm.progress = 0; /* XXX: fix the bug and enable it again */
        get_reg_winpt_prefs (&reg_prefs);
        if (!reg_prefs.no_hotkeys)
            hotkeys_modify ();
        gnupg_load_config ();
    }

    rc = gnupg_check_homedir ();
    if (rc) {
        log_box (_("WinPT Error"), MB_ERR, 
                 _("GPG home directory is not set correctly.\n"
                   "Please check the GPG registry settings:\n%s."),
                 winpt_strerror (rc));
        s = get_fileopen_dlg (GetActiveWindow (),
                              _("Select GPG Public Keyring"),
                              _("GPG Keyrings (*.gpg)\0*.gpg\0\0"),
                              NULL);
        if (s != NULL) {
            size_t n;
            char * p = strrchr (s, '\\');
            if (!p)
                BUG (0);
            n = p - s;
            if (n) {
                char * file = new char[n+1];
                if (!file)
                    BUG (NULL);
                memset (file, 0, n);
                memcpy (file, s, n);
                file[n] = '\0';         
                set_reg_entry_gpg ("HomeDir", file);
                free_if_alloc (file);
                gnupg_check_homedir (); /* change gpgProgram if needed */
            }
        }
        else {
            msg_box (NULL, _("GPG home directory could not be determited."),
                     _("WinPT Error"), MB_ERR);
            goto start;
        }
    }

    rc = check_gnupg_prog ();
    if (rc) {
        if (msg_box (NULL, _("Could not find the GPG binary (gpg.exe).\n"
                             "Do you want to start the GPG preferences to "
                             "correct  this problem?"), _("WinPT Error"),
                             MB_INFO|MB_YESNO) == IDYES)
            start_gpgprefs = 1;
        else 
        {
            msg_box (NULL, winpt_strerror (rc), _("WinPT Error"), MB_ERR);
            return 0;
        }
    }

    rc = gnupg_access_files ();
    if (!start_gpgprefs && rc) {
        if (rc == WPTERR_GPG_KEYRINGS || rc == WPTERR_GPG_OPT_KEYRINGS) {
            ec = msg_box (NULL,
                _("Could not access and/or find the public and secret keyring.\n"
                  "If this is an accident, quit the program and fix it.\n\n"
                  "Continue if you want that WinPT offers you more choices.\n"),
                  "WinPT", MB_INFO|MB_YESNO);
            if (ec == IDYES)
                first_start = 1;
        }
        if (!first_start) {
            msg_box (NULL, winpt_strerror (rc), _("WinPT Error"), MB_ERR);
            return 0;
        }
    }

    if (!first_start) {
        rc = gpg_check_permissions (1);
        if (rc && rc == 2)
            gpg_read_only = 1;
        else if (rc)
            return 0;
    }

    load_gettext (winpt_inst_found);
    init_gnupg_table ();

    nfiles = fm_parse_command_line (cmdline);
    if (nfiles > 0) {
        free_gnupg_table ();
        return 0;
    }

    if (cmdline && stristr (cmdline, "--wipe-freespace")) {
        dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_SPACE_SECDEL,
                            GetDesktopWindow(), space_wipefrees_dlg_proc, 0,
                            _("Wipe Free Space"), IDS_WINPT_SPACE_SECDEL);
        free_gnupg_table ();
        return 0;
    }

    load_keyserver_conf (cmdline? 1 : 0);

    if (cmdline && (stristr (cmdline, "--keymanager")
                || stristr (cmdline, "--cardmanager"))) {
        update_keycache (GetDesktopWindow ());
        if (stristr (cmdline, "keymanager"))
            dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_KEYMISC,
                            GetDesktopWindow(), keymanager_dlg_proc, 0,
                            _("Key Manager"), IDS_WINPT_KEYMISC);  
        else {
            gpg_card_t crd = gpg_card_load ();
            if (crd)
                dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_CARD_EDIT,
                                  GetDesktopWindow(), card_edit_dlg_proc,
                                  (LPARAM)crd, _("Card Manager"),
                                  IDS_WINPT_CARD_EDIT);
            gpg_card_release (crd);
        }
        keycache_release (0);
        free_gnupg_table ();
        return 0;
    }

    /* If we found another WinPT instance, just quit to avoid it
       will be executed twice. */
    if (winpt_inst_found) {
        log_debug ("%s", "WinMain: WinPT is already running."); 
        free_gnupg_table ();
        return 0;
    }

    if (cmdline) {
        if (stristr (cmdline, "--enable-debug") || stristr (cmdline, "--debug")) {
            gpg_set_debug_mode (1);
            winpt_debug_msg ();
            debug = 1;
        }
    }

    wc.hIcon = LoadIcon (glob_hinst, MAKEINTRESOURCE (IDI_WINPT));
    rc = RegisterClass (&wc);
    if (rc == FALSE) {
        msg_box (NULL, _("Could not register window class"), 
                 _("WinPT Error"), MB_ERR);
        free_gnupg_table ();
        return 0;
    }

    hwnd = CreateWindow (PGM_NAME, 
                         PGM_NAME, 
                         0, 0, 0, 0, 0, 
                         NULL, 
                         NULL, 
                         hinst, 
                         NULL);
    if (hwnd == NULL) {
        msg_box (NULL, _("Could not create window"), _("WinPT Error"), MB_ERR);
        free_gnupg_table ();
        return 0;
    }
    glob_hwnd = hwnd;
    UpdateWindow (hwnd);

    if (!first_start && !start_gpgprefs) {
        gnupg_backup_options ();        
        rc = check_crypto_engine ();
        if (rc) {
            DestroyWindow (hwnd);
            free_gnupg_table ();
            return 0;
        }
    }
    
    if (start_gpgprefs) {
        char *ring;

        DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,
                        gpgprefs_dlg_proc, 0);
        ring = get_gnupg_keyring (0, !NO_STRICT);
        if (gnupg_access_keyring (0) == -1 && get_file_size (ring) == 0)
            first_start = 1; /* The keyring is empty! */
        free_if_alloc (ring);
    }

    if (first_start) {
        struct first_start_s fs;
        struct genkey_s c;
        HWND h;
start:
        h = GetDesktopWindow ();
        DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, h,
                            gpgprefs_dlg_proc, 0);
        DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_FIRST, h,
                        first_run_dlg_proc, (LPARAM)&fs);
        switch (fs.choice) {
        case SETUP_KEYGEN:
            c.interactive = 1;
            c.first_start = 1;
            rc = DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_KEYWIZARD,
                                 h, keygen_wizard_dlg_proc, (LPARAM)&c);
            if (!rc)
                goto start;
            break;

        case SETUP_IMPORT:
            rc = gnupg_copy_keyrings ();
            if (rc) {
                msg_box (hwnd, winpt_strerror (rc), _("WinPT Error"), MB_ERR);
                goto start;
            }
            break;

        case -1:
            DestroyWindow (hwnd);
            free_gnupg_table ();
            return 0;
        }
        update_keycache (hwnd);
        check_crypto_engine ();
    }
    else {
        gpg_keycache_t c;
        update_keycache (hwnd);
        c = keycache_get_ctx (1);
        if (!c || !gpg_keycache_get_size (c)) {
            gnupg_display_error ();
            msg_box (hwnd, _("The keycache was not initialized or is empty.\n"
                             "Please check your GPG config (keyrings, pathes...)"),
                             _("WinPT Error"), MB_ERR);
            ec = msg_box (NULL, _("It seems that GPG is not set properly.\n"
                                  "Do you want to start the GPG preferences dialog?"),
                            "WinPT", MB_INFO|MB_YESNO);
            if (ec == IDYES) {
                DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,
                                gpgprefs_dlg_proc, 0);
                update_keycache (hwnd);
            }
            else {
                DestroyWindow (hwnd);
                free_gnupg_table ();
                return 0;
            }
        }
        if (check_default_key (c)) {
            char * p = get_gnupg_default_key ();
            log_box (_("WinPT Error"), MB_ERR, 
                     _("Default key from the GPG options file could not be found.\n"
                       "Please check your gpg.conf (options) to correct this:\n\n"
                       "%s: public key not found."), p? p : "[null]");
            free_if_alloc (p);
            DestroyWindow (hwnd);
            free_gnupg_table ();
            return 0;
        }
        if (count_insecure_elgkeys ())
            DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_ELGWARN, glob_hwnd,
                            elgamal_warn_dlg_proc, 0);
    }

    accel_tab = LoadAccelerators (glob_hinst, (LPCTSTR)IDR_WINPT_ACCELERATOR);
    keyring_check_last_access (); /* init */
    while (GetMessage (&msg, hwnd, 0, 0)) {
        if (!TranslateAccelerator (msg.hwnd, accel_tab, &msg)) {
            TranslateMessage (&msg);
            DispatchMessage (&msg);
        }
    }
        
    return 0;
}
1	werner	36	/* WinPT.cpp - Windows Privacy Tray (WinPT)
2			* Copyright (C) 2000-2005 Timo Schulz
3			*
4			* This file is part of WinPT.
5			*
6			* WinPT is free software; you can redistribute it and/or modify
7			* it under the terms of the GNU General Public License as published by
8			* the Free Software Foundation; either version 2 of the License, or
9			* (at your option) any later version.
10			*
11			* WinPT is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14			* GNU General Public License for more details.
15			*
16			* You should have received a copy of the GNU General Public License
17			* along with WinPT; if not, write to the Free Software Foundation,
18			* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
19			*/
20	werner	42	#ifdef HAVE_CONFIG_H
21			#include <config.h>
22			#endif
23
24	werner	36	#include <windows.h>
25
26	werner	47	#include "resource.h"
27	werner	36	#include "wptTypes.h"
28			#include "wptW32API.h"
29			#include "wptVersion.h"
30			#include "wptErrors.h"
31			#include "wptGPG.h"
32			#include "wptRegistry.h"
33			#include "wptCommonCtl.h"
34			#include "wptDlgs.h"
35			#include "wptNLS.h"
36			#include "wptKeyserver.h"
37			#include "wptCard.h"
38			#include "wptFileManager.h"
39			#include "wptContext.h"
40			#include "wptCardEdit.h"
41	werner	48	#include "wptCrypto.h"
42	werner	36
43	twoaday	80	#define MIN_GPG_VER "1.4.2" /* Minimal GPG version. */
44	werner	36	#define MIN_GPGME_VER "1.2.0" /* Minimal GPGME version. */
45
46
47			HINSTANCE glob_hinst; /* global instance for the dialogs */
48			HWND glob_hwnd; /* global window handle for the dialogs */
49			HWND activ_hwnd;
50			LOCK mo_file;
51			int scard_support = 0;
52			int debug = 0;
53			int mobile = 0;
54			int gpg_read_only = 0;
55			char gpgver[3];
56
57
58			/* Load the key cache and rebuild the signature cache. */
59			static void
60			update_keycache (HWND hwnd)
61			{
62			refresh_cache_s rcs = {0};
63			rcs.kr_reload = 0;
64			rcs.kr_update = 1;
65			rcs.tr_update = 1;
66			DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_KEYCACHE, hwnd,
67			keycache_dlg_proc, (LPARAM)&rcs);
68			}
69
70
71			/* Set GPGME debug mode. If @val is 0, the debug mode is disabled. */
72			void
73			gpg_set_debug_mode (int val)
74			{
75			if (val)
76			putenv ("GPGME_DEBUG=5:gpgme.dbg");
77			else
78			putenv ("GPGME_DEBUG=");
79			}
80
81
82			/* Return the name of the gettext language file. */
83			static char*
84			get_gettext_lang (void)
85			{
86			char *fname;
87			fname = get_reg_entry_mo ();
88			if (!fname)
89			return NULL;
90			return fname;
91			}
92
93
94			/* Initialize the gettext sub system. */
95			static void
96			load_gettext (int prev_inst)
97			{
98			char *nls = NULL;
99			char *file = NULL;
100
101			nls = get_gettext_lang ();
102			if (nls) {
103			set_gettext_file ("winpt", nls);
104			file = make_filename (nls, "winpt", "mo");
105			if (!file_exist_check (nls) && init_file_lock (&mo_file, file)) {
106			if (!prev_inst)
107			msg_box (NULL, _("Could not initizalize file lock.\n"
108			"Native Language Support"),
109			_("WinPT Error"), MB_ERR);
110			}
111			free_if_alloc (nls);
112			free_if_alloc (file);
113			}
114			}
115
116
117			/* check if the default key from the gpg.conf file is available in the
118			keyring. if not, bail out because encryption won't work properly then. */
119			static int
120			check_default_key (gpg_keycache_t kc)
121			{
122			gpgme_key_t key;
123			gpgme_error_t err = GPG_ERR_NO_ERROR;
124			char * defkey;
125
126			defkey = get_gnupg_default_key ();
127			if (defkey)
128			err = gpg_keycache_find_key (kc, defkey, 0, &key);
129	twoaday	66	else
130			msg_box (NULL, _("No useable secret key found."), _("WinPT Error"), MB_ERR);
131	werner	36	free_if_alloc (defkey);
132			return err? -1 : 0;
133			}
134
135
136			/* Return the WinPT program file name (with full pathname). */
137			static const char *
138			get_prog_part (const char * fname, int use_cwd)
139			{
140			static char program[512];
141			char currdir[256];
142			char *cmd = NULL;
143			int j;
144
145			memset (currdir, 0, DIM (currdir));
146			memset (program, 0, DIM (program));
147
148			if (use_cwd) {
149			GetCurrentDirectory (DIM (currdir)-1, currdir);
150			_snprintf (program, DIM (program)-1, "%s\\%s", currdir, fname);
151			}
152			else {
153			cmd = GetCommandLine ();
154			if (cmd == NULL)
155			return NULL;
156			strncpy (currdir, cmd, sizeof (currdir)-1);
157			j = strlen (currdir);
158			while (j--) {
159			if (currdir[j] == '\\')
160			break;
161			}
162			currdir[j] = 0;
163			_snprintf (program, DIM (program)-1, "%s\\%s", currdir + 1, fname);
164			}
165			return program;
166			}
167
168
169			/* Check that the underlying crypto engine fullfills the minimal
170			requirements so all commands work properly. */
171			static int
172			check_crypto_engine (void)
173			{
174	twoaday	80	int ma=1, mi=4, pa=2; /* GPG 1.4.2 */
175	werner	36	int rc;
176
177			rc = check_gnupg_engine (&ma, &mi, &pa);
178			if (rc == -1) {
179			msg_box (NULL, _("Could not read GnuPG version."),
180			_("WinPT Error"), MB_ERR);
181			return rc;
182			}
183			else if (rc) {
184			log_box (_("WinPT Error"), MB_ERR,
185			_("Sorry, you need a newer GPG version.\n"
186			"GPG version %d.%d.%d required GPG version "MIN_GPG_VER),
187			ma, mi, pa);
188			return rc;
189			}
190	twoaday	80	/* We enable smartcard support for GPG: >= 2 or >= 1.4.3 */
191			if (ma > 1 \|\| pa >= 3)
192	werner	36	scard_support = 1;
193
194			gpgver[0] = ma;
195			gpgver[1] = mi;
196			gpgver[2] = pa;
197			return rc;
198			}
199
200
201			/* Try to load the keyserver config file. If @quiet is 1
202			do not show any errors. */
203			static int
204			load_keyserver_conf (int quiet)
205			{
206			const char * t;
207			int rc;
208
209			if (reg_prefs.kserv_conf)
210			t = reg_prefs.kserv_conf;
211			else if (!file_exist_check (get_prog_part ("keyserver.conf", 0)))
212			t = get_prog_part ("keyserver.conf", 0);
213			else
214			t = "keyserver.conf";
215			rc = kserver_load_conf (t);
216			if (rc && !quiet)
217			msg_box (NULL, winpt_strerror (rc), _("Keyserver"), MB_ERR);
218			return rc;
219			}
220
221
222			/* Enable the mobility mode. */
223			static void
224			enable_mobile_mode (void)
225			{
226			memset (&reg_prefs, 0, sizeof (reg_prefs));
227			reg_prefs.always_trust = 0;
228			reg_prefs.auto_backup = 0;
229			reg_prefs.cache_time = 0;
230			reg_prefs.expert = 0;
231			reg_prefs.keylist_mode = 1;
232			reg_prefs.kserv_conf = m_strdup ("keyserver.conf");
233			reg_prefs.no_zip_mmedia = 1;
234			reg_prefs.use_tmpfiles = 1;
235			reg_prefs.word_wrap = 80;
236			reg_prefs.use_viewer = 0; /* XXX */
237			}
238
239			char* multi_gnupg_path (void);
240
241	twoaday	41	const char * fm_get_file_type (const char fname, int r_type);
242
243	werner	36	/* Main entry point. */
244			int WINAPI
245			WinMain (HINSTANCE hinst, HINSTANCE hprev, LPSTR cmdline, int showcmd)
246			{
247			WNDCLASS wc = {0, winpt_main_proc, 0, 0, hinst, 0, 0, 0, 0, PGM_NAME};
248			HACCEL accel_tab;
249	twoaday	41	int rc, ec, created = 0, nfiles = 0;
250	werner	36	int first_start = 0, start_gpgprefs = 0;
251			int winpt_inst_found = 0;
252			const char *s;
253			MSG msg;
254			HWND hwnd = NULL;
255
256			glob_hinst = hinst;
257
258	twoaday	87	if (cmdline && stristr (cmdline, "--stop")) {
259			hwnd = FindWindow ("WinPT", "WinPT");
260			if (hwnd != NULL)
261			PostMessage (hwnd, WM_DESTROY, 0, 0);
262			return 0;
263			}
264
265	werner	58	#ifdef _DEBUG
266	werner	36	gpg_set_debug_mode (1);
267			debug = 1;
268	werner	58	#endif
269	werner	36
270			if (gpg_md_selftest ()) {
271			msg_box (NULL, _("Cryptographic selftest failed."),
272			_("WinPT Error"), MB_ERR);
273			return 0;
274			}
275
276			s = gpgme_check_version (MIN_GPGME_VER);
277			if (!s \|\| !*s) {
278			msg_box (NULL, _("A newer GPGME version is needed; at least "MIN_GPGME_VER),
279			_("WinPT Error"), MB_ERR);
280			return 0;
281			}
282
283			CreateMutex (NULL, TRUE, PGM_NAME);
284			if (GetLastError () == ERROR_ALREADY_EXISTS)
285			winpt_inst_found = 1;
286
287			if (cmdline && stristr (cmdline, "--mobile")) {
288			msg_box (NULL, "WARNING: mobile modus is not fully implemented yet!",
289			"WinPT", MB_INFO);
290			mobile = 1;
291			}
292
293			set_default_kserver ();
294
295			if (!mobile) {
296			regist_inst_gnupg (1);
297			regist_inst_winpt (1, &created);
298			}
299			else {
300			enable_mobile_mode ();
301			/* XXX: ask for GPG path */
302			created = 1; /* Disable registry writing */
303			}
304
305			if (!created) {
306			memset (&reg_prefs, 0, sizeof (reg_prefs));
307			reg_prefs.use_tmpfiles = 1; /* default */
308			reg_prefs.fm.progress = 0; /* XXX: fix the bug and enable it again */
309			get_reg_winpt_prefs (&reg_prefs);
310			if (!reg_prefs.no_hotkeys)
311			hotkeys_modify ();
312	twoaday	41	gnupg_load_config ();
313	werner	36	}
314
315			rc = gnupg_check_homedir ();
316			if (rc) {
317			log_box (_("WinPT Error"), MB_ERR,
318			_("GPG home directory is not set correctly.\n"
319			"Please check the GPG registry settings:\n%s."),
320			winpt_strerror (rc));
321	werner	48	s = get_fileopen_dlg (GetActiveWindow (),
322			_("Select GPG Public Keyring"),
323			_("GPG Keyrings (.gpg)\0.gpg\0\0"),
324			NULL);
325	werner	36	if (s != NULL) {
326			size_t n;
327			char * p = strrchr (s, '\\');
328			if (!p)
329			BUG (0);
330			n = p - s;
331			if (n) {
332			char * file = new char[n+1];
333			if (!file)
334			BUG (NULL);
335			memset (file, 0, n);
336			memcpy (file, s, n);
337			file[n] = '\0';
338			set_reg_entry_gpg ("HomeDir", file);
339			free_if_alloc (file);
340			gnupg_check_homedir (); /* change gpgProgram if needed */
341			}
342			}
343			else {
344			msg_box (NULL, _("GPG home directory could not be determited."),
345			_("WinPT Error"), MB_ERR);
346			goto start;
347			}
348			}
349
350			rc = check_gnupg_prog ();
351			if (rc) {
352			if (msg_box (NULL, _("Could not find the GPG binary (gpg.exe).\n"
353			"Do you want to start the GPG preferences to "
354			"correct this problem?"), _("WinPT Error"),
355			MB_INFO\|MB_YESNO) == IDYES)
356			start_gpgprefs = 1;
357			else
358			{
359			msg_box (NULL, winpt_strerror (rc), _("WinPT Error"), MB_ERR);
360			return 0;
361			}
362			}
363
364			rc = gnupg_access_files ();
365			if (!start_gpgprefs && rc) {
366			if (rc == WPTERR_GPG_KEYRINGS \|\| rc == WPTERR_GPG_OPT_KEYRINGS) {
367			ec = msg_box (NULL,
368			_("Could not access and/or find the public and secret keyring.\n"
369			"If this is an accident, quit the program and fix it.\n\n"
370			"Continue if you want that WinPT offers you more choices.\n"),
371			"WinPT", MB_INFO\|MB_YESNO);
372			if (ec == IDYES)
373			first_start = 1;
374			}
375			if (!first_start) {
376			msg_box (NULL, winpt_strerror (rc), _("WinPT Error"), MB_ERR);
377			return 0;
378			}
379			}
380
381			if (!first_start) {
382			rc = gpg_check_permissions (1);
383			if (rc && rc == 2)
384			gpg_read_only = 1;
385			else if (rc)
386			return 0;
387			}
388
389			load_gettext (winpt_inst_found);
390			init_gnupg_table ();
391
392			nfiles = fm_parse_command_line (cmdline);
393			if (nfiles > 0) {
394			free_gnupg_table ();
395			return 0;
396			}
397
398			if (cmdline && stristr (cmdline, "--wipe-freespace")) {
399			dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_SPACE_SECDEL,
400	twoaday	73	GetDesktopWindow(), space_wipefrees_dlg_proc, 0,
401	werner	36	_("Wipe Free Space"), IDS_WINPT_SPACE_SECDEL);
402			free_gnupg_table ();
403			return 0;
404			}
405
406			load_keyserver_conf (cmdline? 1 : 0);
407
408			if (cmdline && (stristr (cmdline, "--keymanager")
409			\|\| stristr (cmdline, "--cardmanager"))) {
410			update_keycache (GetDesktopWindow ());
411			if (stristr (cmdline, "keymanager"))
412			dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_KEYMISC,
413	twoaday	73	GetDesktopWindow(), keymanager_dlg_proc, 0,
414	werner	36	_("Key Manager"), IDS_WINPT_KEYMISC);
415			else {
416			gpg_card_t crd = gpg_card_load ();
417			if (crd)
418			dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_CARD_EDIT,
419			GetDesktopWindow(), card_edit_dlg_proc,
420			(LPARAM)crd, _("Card Manager"),
421			IDS_WINPT_CARD_EDIT);
422			gpg_card_release (crd);
423			}
424			keycache_release (0);
425			free_gnupg_table ();
426			return 0;
427			}
428
429			/* If we found another WinPT instance, just quit to avoid it
430			will be executed twice. */
431			if (winpt_inst_found) {
432			log_debug ("%s", "WinMain: WinPT is already running.");
433			free_gnupg_table ();
434			return 0;
435			}
436
437			if (cmdline) {
438			if (stristr (cmdline, "--enable-debug") \|\| stristr (cmdline, "--debug")) {
439			gpg_set_debug_mode (1);
440			winpt_debug_msg ();
441			debug = 1;
442			}
443			}
444
445			wc.hIcon = LoadIcon (glob_hinst, MAKEINTRESOURCE (IDI_WINPT));
446			rc = RegisterClass (&wc);
447			if (rc == FALSE) {
448			msg_box (NULL, _("Could not register window class"),
449			_("WinPT Error"), MB_ERR);
450			free_gnupg_table ();
451			return 0;
452			}
453
454			hwnd = CreateWindow (PGM_NAME,
455			PGM_NAME,
456			0, 0, 0, 0, 0,
457			NULL,
458			NULL,
459			hinst,
460			NULL);
461			if (hwnd == NULL) {
462			msg_box (NULL, _("Could not create window"), _("WinPT Error"), MB_ERR);
463			free_gnupg_table ();
464			return 0;
465			}
466			glob_hwnd = hwnd;
467			UpdateWindow (hwnd);
468
469			if (!first_start && !start_gpgprefs) {
470			gnupg_backup_options ();
471			rc = check_crypto_engine ();
472			if (rc) {
473			DestroyWindow (hwnd);
474			free_gnupg_table ();
475			return 0;
476			}
477			}
478
479			if (start_gpgprefs) {
480			char *ring;
481	werner	48
482	werner	36	DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,
483	twoaday	41	gpgprefs_dlg_proc, 0);
484	werner	36	ring = get_gnupg_keyring (0, !NO_STRICT);
485			if (gnupg_access_keyring (0) == -1 && get_file_size (ring) == 0)
486			first_start = 1; /* The keyring is empty! */
487			free_if_alloc (ring);
488			}
489
490			if (first_start) {
491			struct first_start_s fs;
492			struct genkey_s c;
493			HWND h;
494			start:
495			h = GetDesktopWindow ();
496			DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, h,
497	twoaday	41	gpgprefs_dlg_proc, 0);
498	werner	36	DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_FIRST, h,
499			first_run_dlg_proc, (LPARAM)&fs);
500			switch (fs.choice) {
501			case SETUP_KEYGEN:
502			c.interactive = 1;
503			c.first_start = 1;
504			rc = DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_KEYWIZARD,
505			h, keygen_wizard_dlg_proc, (LPARAM)&c);
506			if (!rc)
507			goto start;
508			break;
509
510			case SETUP_IMPORT:
511			rc = gnupg_copy_keyrings ();
512			if (rc) {
513			msg_box (hwnd, winpt_strerror (rc), _("WinPT Error"), MB_ERR);
514			goto start;
515			}
516			break;
517
518			case -1:
519			DestroyWindow (hwnd);
520			free_gnupg_table ();
521			return 0;
522			}
523			update_keycache (hwnd);
524			check_crypto_engine ();
525			}
526			else {
527			gpg_keycache_t c;
528			update_keycache (hwnd);
529			c = keycache_get_ctx (1);
530			if (!c \|\| !gpg_keycache_get_size (c)) {
531			gnupg_display_error ();
532			msg_box (hwnd, _("The keycache was not initialized or is empty.\n"
533			"Please check your GPG config (keyrings, pathes...)"),
534			_("WinPT Error"), MB_ERR);
535			ec = msg_box (NULL, _("It seems that GPG is not set properly.\n"
536			"Do you want to start the GPG preferences dialog?"),
537			"WinPT", MB_INFO\|MB_YESNO);
538			if (ec == IDYES) {
539			DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,
540	twoaday	41	gpgprefs_dlg_proc, 0);
541	werner	36	update_keycache (hwnd);
542			}
543			else {
544			DestroyWindow (hwnd);
545			free_gnupg_table ();
546			return 0;
547			}
548			}
549			if (check_default_key (c)) {
550			char * p = get_gnupg_default_key ();
551			log_box (_("WinPT Error"), MB_ERR,
552			_("Default key from the GPG options file could not be found.\n"
553			"Please check your gpg.conf (options) to correct this:\n\n"
554			"%s: public key not found."), p? p : "[null]");
555			free_if_alloc (p);
556			DestroyWindow (hwnd);
557			free_gnupg_table ();
558			return 0;
559			}
560			if (count_insecure_elgkeys ())
561			DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_ELGWARN, glob_hwnd,
562	twoaday	41	elgamal_warn_dlg_proc, 0);
563	werner	36	}
564
565			accel_tab = LoadAccelerators (glob_hinst, (LPCTSTR)IDR_WINPT_ACCELERATOR);
566			keyring_check_last_access (); /* init */
567			while (GetMessage (&msg, hwnd, 0, 0)) {
568			if (!TranslateAccelerator (msg.hwnd, accel_tab, &msg)) {
569			TranslateMessage (&msg);
570			DispatchMessage (&msg);
571			}
572			}
573
574			return 0;
575			}