trunk/Src/wptKeyPropsDlg.cpp

/* wptKeyPropsDlg.cpp - WinPT key properties dialog
 *      Copyright (C) 2000, 2001, 2002, 2003, 2005, 2006 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 "wptErrors.h"
#include "wptGPG.h"
#include "wptCommonCtl.h"
#include "wptContext.h" /* for passphrase_s */
#include "wptNLS.h"
#include "wptDlgs.h" 
#include "wptTypes.h"
#include "wptKeylist.h"
#include "wptW32API.h"
#include "wptVersion.h"
#include "wptKeyEdit.h"


/* Check that the key is not expired or revoked. */
static int
do_check_key (gpgme_key_t key)
{
    int okay = 0;
    okay = key->expired;
    if (!okay)
        okay = key->revoked;
    return okay;
}


/* Convert a trust integer into a string representation. */
static const char*
ownertrust_to_string (int val, bool is_keypair)
{
    const char *inf;
    int id = val;

    switch (id) {
    case 1: inf = _("Don't know");         break;
    case 2: inf = _("I do NOT trust");     break;
    case 3: inf = _("I trust marginally"); break;
    case 4: inf = _("I trust fully");      break;
    case 5:
    case 6: 
        if (is_keypair)
            inf = _("I trust ultimately (implicit)");
        else
            inf = _("I trust ultimately"); break;
    default:inf = _("Unknown");            break;
    }
    
    return inf;
}


/* Generate a unique temp name for the photo which
   depends on the dialog handle and return it. */
static const char*
get_photo_tmpname (HWND dlg)
{
    static char buf[64];

    _snprintf (buf, sizeof (buf)-1, "winpt_photo_%08lX.tmp", (DWORD)dlg);
    return buf;
}


static void
draw_nophoto_img (HWND dlg)
{
    /*..
    n = DrawText (hdc, "No Photo-ID", -1, &r, DT_LEFT);
    ..*/
}


/* Load the photo from the key @key */
static int
keyprops_load_photo (HWND dlg, gpgme_key_t key, gpgme_validity_t *r_valid)
{
    winpt_key_s k;
    FILE *f;
    const BYTE *img;
    DWORD imglen = 0;
    int pos=0;

    winpt_get_pubkey (key->subkeys->keyid, &k);
    img = k.ext->attrib.d;
    imglen = k.ext->attrib.len;
    if (!k.ext->attrib.validity)
        get_uat_validity (key->subkeys->keyid, &k.ext->attrib.validity);
    *r_valid = k.ext->attrib.validity;

    if (!img || !imglen) {
        draw_nophoto_img (dlg);
        return -1;
    }

    f = fopen (get_photo_tmpname (dlg), "wb");
    if (f) {
        //for (pos = 0; img[pos] != 0x10; pos++)
        //      ;
        pos += 16;
        fwrite (img + pos, 1, imglen - pos, f);
        fclose (f);
    }
    return 0;
}


/* Display the photo in the image control in the dialog @dlg. */
static int
keyprops_show_photo (HWND dlg)
{
    RECT r;     
    POINT p;
    HWND h;

    h = GetDlgItem (dlg, IDC_KEYPROPS_IMG);
    GetWindowRect (h, &r);
    p.x = r.left + 5;
    p.y = r.top - 2;
    memset (&p, 0, sizeof (p));
    PTD_jpg_show (h, &p, get_photo_tmpname (dlg));
    
    return 0;
}


/* Return string representation of the key validity. @key. */
static const char*
get_validity (gpgme_key_t key)
{
    int val;
    val = key->expired;
    if (val)
        return _("Expired");    
    val = key->revoked;
    if (val)
        return _("Revoked");
    val = key->disabled;
    if (val)
        return _("Disabled");
    return get_key_trust2 (NULL, key->uids->validity, 0, 0);
}


/* Return the preferred sym. algorithm from @key as a string. */
static const char*
get_pref_cipher (winpt_key_t k)
{
    if (k->is_v3)
        return "IDEA";
    if (!k->ext->sym_prefs)
        return "3DES";
    switch (*k->ext->sym_prefs) {
    case 1: return "IDEA";
    case 2: return "3DES";
    case 3: return "CAST5";
    case 4: return "Blowfish";
    case 7:
    case 8:
    case 9: return "AES";
    case 10:return "Twofish";
    }
    return "Unknown";
}


/* Return true if the key has designated revokers. */
static bool
check_for_desig_rev (gpgme_key_t key)
{
    winpt_key_s k;
    memset (&k, 0, sizeof (k));
    if (!winpt_get_pubkey (key->subkeys->keyid, &k))
        return k.ext->gloflags.has_desig_rev? true : false;
    return false;
}


/* Print information (name) of the smart card. */
static const char*
get_card_type (winpt_key_t k)
{    
    static char buf[64];

    if (!k->ext->card_type)
        return "";
    _snprintf (buf, sizeof (buf)-1, _("Card-Type: %s\r\n"), k->ext->card_type);
    return buf;
}


/* Display the key information for key @k.
   Return value: gpgme key on success. */
static void
display_key_info (HWND dlg, winpt_key_t k, gpgme_key_t *r_key)
{
    struct winpt_key_s k2;
    gpgme_key_t sk, key;
    char info[512];
    const char *inf;
    u32 created, expires;

    memset (&k2, 0, sizeof (k2));       
    if (k->key_pair)
        winpt_get_seckey (k->keyid, &k2);
    else    
        winpt_get_pubkey (k->keyid, &k2);
    sk = k2.ctx;
    if (sk)
        k->is_protected = k2.is_protected;
    if (get_pubkey (k->keyid, &key))
        BUG (0);    
    created = key->subkeys->timestamp;  
    expires = key->subkeys->expires;    
    _snprintf (info, DIM (info)-1,
               _("Type: %s\r\n"
               "Key ID: %s\r\n"
               "Algorithm: %s\r\n"
               "Size: %s bits\r\n"
               "Created: %s\r\n"
               "Expires: %s\r\n"
               "Validity: %s\r\n"
               "Cipher: %s\r\n"
               "%s\r\n"),
               get_key_type (key),
               k->keyid,
               get_key_algo (key, 0),
               get_key_size (key, 0),
               get_key_created (created),
               get_key_expire_date (expires),
               get_validity (key), 
               get_pref_cipher (&k2),
               get_card_type (&k2));

    SetDlgItemText (dlg, IDC_KEYPROPS_INFO, info);
    SetDlgItemText (dlg, IDC_KEYPROPS_FPR, get_key_fpr (key));  
    inf = ownertrust_to_string (key->owner_trust, k->key_pair);
    SetDlgItemText (dlg, IDC_KEYPROPS_OT, inf);

    *r_key = key;
}


/* Dialog box procedure to show the key properties. */
BOOL CALLBACK
keyprops_dlg_proc (HWND dlg, UINT msg, WPARAM wparam, LPARAM lparam)
{
    static winpt_key_t k;
    static gpgme_key_t key;
    gpgme_validity_t valid;
    refresh_cache_s rcs = {0};
    const char *inf;
    int cancel = 0;
    int rc;
    
    /* XXX: static variable (k) prevent that the dialog can 
            be opened twice. */
    switch (msg) {
    case WM_INITDIALOG:
        if (!lparam)
            dlg_fatal_error (dlg, "Could not get dialog param!");
        k = (winpt_key_t)lparam;
        SetWindowText (dlg, _("Key Properties"));
        SetDlgItemText (dlg, IDC_KEYPROPS_OT_CHANGE, _("&Change"));
        SetDlgItemText (dlg, IDC_KEYPROPS_REVOKERS, _("&Revokers"));
        SetDlgItemText (dlg, IDC_KEYPROPS_CHANGE_PWD, _("Change &Password"));
        SetDlgItemText (dlg, IDC_KEYPROPS_OTINF, _("Ownertrust"));

        display_key_info (dlg, k, &key);
        if (!keyprops_load_photo (dlg, key, &valid)) {
            k->has_photo = 1;   
            if (valid < GPGME_VALIDITY_MARGINAL)
                SetDlgItemText (dlg, IDC_KEYPROPS_IMGINF, _("Photo-ID not validated."));
        }
        if (k->key_pair)
            EnableWindow (GetDlgItem (dlg, IDC_KEYPROPS_CHANGE_PWD), TRUE);
        if (check_for_desig_rev (key))
            EnableWindow (GetDlgItem (dlg, IDC_KEYPROPS_REVOKERS), TRUE);
        if (key->revoked || key->expired)
            EnableWindow (GetDlgItem (dlg, IDC_KEYPROPS_OT_CHANGE), FALSE);
        center_window (dlg, NULL);
        SetForegroundWindow (dlg);      
        return TRUE;

    case WM_DESTROY:
        remove (get_photo_tmpname (dlg));
        break;
      
    case WM_PAINT:
        if (k->has_photo)
            keyprops_show_photo (dlg);
        break;

    case WM_SYSCOMMAND:
        if (LOWORD (wparam) == SC_CLOSE)
            EndDialog (dlg, TRUE);
        return FALSE;
        
    case WM_COMMAND:
        switch (LOWORD (wparam)) {
        case IDOK:
            EndDialog (dlg, TRUE);
            return TRUE;
            
        case IDC_KEYPROPS_OT_CHANGE:
            if (do_check_key (key)) {
                msg_box (dlg, _("The status of this key is 'revoked' or 'expired'.\n"
                                "You cannot change the ownertrust of such keys."),
                                _("WinPT Warning"), MB_ERR);
                return TRUE;
            }
            if (!k->key_pair && key->uids->validity < 3) {
                rc = msg_box (dlg, _("This is a non-valid key.\n"
                                     "Modifying the ownertrust has no effect on such keys.\n\n"
                                     "Do you really want to continue?"), 
                                     _("WinPT Warning"), MB_ICONWARNING|MB_YESNO);
                if (rc == IDNO)
                    return TRUE;
            }
            dialog_box_param (glob_hinst, (LPCSTR)IDD_WINPT_KEYEDIT_OWNERTRUST,
                              dlg, (DLGPROC)keyedit_ownertrust_dlg_proc,
                              (LPARAM)k, _("Change Ownertrust"),
                              IDS_WINPT_KEYEDIT_OWNERTRUST);
            if (k->callback.new_val == -1) { /* Cancel */
                EndDialog (dlg, FALSE);
                break;
            }

            inf = ownertrust_to_string (k->callback.new_val, k->key_pair);
            SetDlgItemText (dlg, IDC_KEYPROPS_OT, inf);
            msg_box (dlg, _("Ownertrust successfully changed."), 
                     _("GnuPG Status"), MB_OK);
            
            keycache_update (0, key->subkeys->keyid);
            return TRUE;
            
        case IDC_KEYPROPS_CHANGE_PWD:
            keyedit_change_passwd (k, dlg);         
            return TRUE;

        case IDC_KEYPROPS_REVOKERS:
            k->update = dialog_box_param (
                glob_hinst, (LPCTSTR)IDD_WINPT_KEYREVOKERS, dlg,
                key_revokers_dlg_proc, (LPARAM)key, 
                _("Key Revokers"), IDS_WINPT_KEY_REVOKERS);
            break;
        }
    }
    
    return FALSE;
}
1	/* wptKeyPropsDlg.cpp - WinPT key properties dialog
2	* Copyright (C) 2000, 2001, 2002, 2003, 2005, 2006 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	#ifdef HAVE_CONFIG_H
21	#include <config.h>
22	#endif
23
24	#include <windows.h>
25
26	#include "resource.h"
27	#include "wptErrors.h"
28	#include "wptGPG.h"
29	#include "wptCommonCtl.h"
30	#include "wptContext.h" /* for passphrase_s */
31	#include "wptNLS.h"
32	#include "wptDlgs.h"
33	#include "wptTypes.h"
34	#include "wptKeylist.h"
35	#include "wptW32API.h"
36	#include "wptVersion.h"
37	#include "wptKeyEdit.h"
38
39
40	/* Check that the key is not expired or revoked. */
41	static int
42	do_check_key (gpgme_key_t key)
43	{
44	int okay = 0;
45	okay = key->expired;
46	if (!okay)
47	okay = key->revoked;
48	return okay;
49	}
50
51
52	/* Convert a trust integer into a string representation. */
53	static const char*
54	ownertrust_to_string (int val, bool is_keypair)
55	{
56	const char *inf;
57	int id = val;
58
59	switch (id) {
60	case 1: inf = _("Don't know"); break;
61	case 2: inf = _("I do NOT trust"); break;
62	case 3: inf = _("I trust marginally"); break;
63	case 4: inf = _("I trust fully"); break;
64	case 5:
65	case 6:
66	if (is_keypair)
67	inf = _("I trust ultimately (implicit)");
68	else
69	inf = _("I trust ultimately"); break;
70	default:inf = _("Unknown"); break;
71	}
72
73	return inf;
74	}
75
76
77	/* Generate a unique temp name for the photo which
78	depends on the dialog handle and return it. */
79	static const char*
80	get_photo_tmpname (HWND dlg)
81	{
82	static char buf[64];
83
84	_snprintf (buf, sizeof (buf)-1, "winpt_photo_%08lX.tmp", (DWORD)dlg);
85	return buf;
86	}
87
88
89	static void
90	draw_nophoto_img (HWND dlg)
91	{
92	/*..
93	n = DrawText (hdc, "No Photo-ID", -1, &r, DT_LEFT);
94	..*/
95	}
96
97
98	/* Load the photo from the key @key */
99	static int
100	keyprops_load_photo (HWND dlg, gpgme_key_t key, gpgme_validity_t *r_valid)
101	{
102	winpt_key_s k;
103	FILE *f;
104	const BYTE *img;
105	DWORD imglen = 0;
106	int pos=0;
107
108	winpt_get_pubkey (key->subkeys->keyid, &k);
109	img = k.ext->attrib.d;
110	imglen = k.ext->attrib.len;
111	if (!k.ext->attrib.validity)
112	get_uat_validity (key->subkeys->keyid, &k.ext->attrib.validity);
113	*r_valid = k.ext->attrib.validity;
114
115	if (!img \|\| !imglen) {
116	draw_nophoto_img (dlg);
117	return -1;
118	}
119
120	f = fopen (get_photo_tmpname (dlg), "wb");
121	if (f) {
122	//for (pos = 0; img[pos] != 0x10; pos++)
123	// ;
124	pos += 16;
125	fwrite (img + pos, 1, imglen - pos, f);
126	fclose (f);
127	}
128	return 0;
129	}
130
131
132	/* Display the photo in the image control in the dialog @dlg. */
133	static int
134	keyprops_show_photo (HWND dlg)
135	{
136	RECT r;
137	POINT p;
138	HWND h;
139
140	h = GetDlgItem (dlg, IDC_KEYPROPS_IMG);
141	GetWindowRect (h, &r);
142	p.x = r.left + 5;
143	p.y = r.top - 2;
144	memset (&p, 0, sizeof (p));
145	PTD_jpg_show (h, &p, get_photo_tmpname (dlg));
146
147	return 0;
148	}
149
150
151	/* Return string representation of the key validity. @key. */
152	static const char*
153	get_validity (gpgme_key_t key)
154	{
155	int val;
156	val = key->expired;
157	if (val)
158	return _("Expired");
159	val = key->revoked;
160	if (val)
161	return _("Revoked");
162	val = key->disabled;
163	if (val)
164	return _("Disabled");
165	return get_key_trust2 (NULL, key->uids->validity, 0, 0);
166	}
167
168
169	/* Return the preferred sym. algorithm from @key as a string. */
170	static const char*
171	get_pref_cipher (winpt_key_t k)
172	{
173	if (k->is_v3)
174	return "IDEA";
175	if (!k->ext->sym_prefs)
176	return "3DES";
177	switch (*k->ext->sym_prefs) {
178	case 1: return "IDEA";
179	case 2: return "3DES";
180	case 3: return "CAST5";
181	case 4: return "Blowfish";
182	case 7:
183	case 8:
184	case 9: return "AES";
185	case 10:return "Twofish";
186	}
187	return "Unknown";
188	}
189
190
191	/* Return true if the key has designated revokers. */
192	static bool
193	check_for_desig_rev (gpgme_key_t key)
194	{
195	winpt_key_s k;
196	memset (&k, 0, sizeof (k));
197	if (!winpt_get_pubkey (key->subkeys->keyid, &k))
198	return k.ext->gloflags.has_desig_rev? true : false;
199	return false;
200	}
201
202
203	/* Print information (name) of the smart card. */
204	static const char*
205	get_card_type (winpt_key_t k)
206	{
207	static char buf[64];
208
209	if (!k->ext->card_type)
210	return "";
211	_snprintf (buf, sizeof (buf)-1, _("Card-Type: %s\r\n"), k->ext->card_type);
212	return buf;
213	}
214
215
216	/* Display the key information for key @k.
217	Return value: gpgme key on success. */
218	static void
219	display_key_info (HWND dlg, winpt_key_t k, gpgme_key_t *r_key)
220	{
221	struct winpt_key_s k2;
222	gpgme_key_t sk, key;
223	char info[512];
224	const char *inf;
225	u32 created, expires;
226
227	memset (&k2, 0, sizeof (k2));
228	if (k->key_pair)
229	winpt_get_seckey (k->keyid, &k2);
230	else
231	winpt_get_pubkey (k->keyid, &k2);
232	sk = k2.ctx;
233	if (sk)
234	k->is_protected = k2.is_protected;
235	if (get_pubkey (k->keyid, &key))
236	BUG (0);
237	created = key->subkeys->timestamp;
238	expires = key->subkeys->expires;
239	_snprintf (info, DIM (info)-1,
240	_("Type: %s\r\n"
241	"Key ID: %s\r\n"
242	"Algorithm: %s\r\n"
243	"Size: %s bits\r\n"
244	"Created: %s\r\n"
245	"Expires: %s\r\n"
246	"Validity: %s\r\n"
247	"Cipher: %s\r\n"
248	"%s\r\n"),
249	get_key_type (key),
250	k->keyid,
251	get_key_algo (key, 0),
252	get_key_size (key, 0),
253	get_key_created (created),
254	get_key_expire_date (expires),
255	get_validity (key),
256	get_pref_cipher (&k2),
257	get_card_type (&k2));
258
259	SetDlgItemText (dlg, IDC_KEYPROPS_INFO, info);
260	SetDlgItemText (dlg, IDC_KEYPROPS_FPR, get_key_fpr (key));
261	inf = ownertrust_to_string (key->owner_trust, k->key_pair);
262	SetDlgItemText (dlg, IDC_KEYPROPS_OT, inf);
263
264	*r_key = key;
265	}
266
267
268	/* Dialog box procedure to show the key properties. */
269	BOOL CALLBACK
270	keyprops_dlg_proc (HWND dlg, UINT msg, WPARAM wparam, LPARAM lparam)
271	{
272	static winpt_key_t k;
273	static gpgme_key_t key;
274	gpgme_validity_t valid;
275	refresh_cache_s rcs = {0};
276	const char *inf;
277	int cancel = 0;
278	int rc;
279
280	/* XXX: static variable (k) prevent that the dialog can
281	be opened twice. */
282	switch (msg) {
283	case WM_INITDIALOG:
284	if (!lparam)
285	dlg_fatal_error (dlg, "Could not get dialog param!");
286	k = (winpt_key_t)lparam;
287	SetWindowText (dlg, _("Key Properties"));
288	SetDlgItemText (dlg, IDC_KEYPROPS_OT_CHANGE, _("&Change"));
289	SetDlgItemText (dlg, IDC_KEYPROPS_REVOKERS, _("&Revokers"));
290	SetDlgItemText (dlg, IDC_KEYPROPS_CHANGE_PWD, _("Change &Password"));
291	SetDlgItemText (dlg, IDC_KEYPROPS_OTINF, _("Ownertrust"));
292
293	display_key_info (dlg, k, &key);
294	if (!keyprops_load_photo (dlg, key, &valid)) {
295	k->has_photo = 1;
296	if (valid < GPGME_VALIDITY_MARGINAL)
297	SetDlgItemText (dlg, IDC_KEYPROPS_IMGINF, _("Photo-ID not validated."));
298	}
299	if (k->key_pair)
300	EnableWindow (GetDlgItem (dlg, IDC_KEYPROPS_CHANGE_PWD), TRUE);
301	if (check_for_desig_rev (key))
302	EnableWindow (GetDlgItem (dlg, IDC_KEYPROPS_REVOKERS), TRUE);
303	if (key->revoked \|\| key->expired)
304	EnableWindow (GetDlgItem (dlg, IDC_KEYPROPS_OT_CHANGE), FALSE);
305	center_window (dlg, NULL);
306	SetForegroundWindow (dlg);
307	return TRUE;
308
309	case WM_DESTROY:
310	remove (get_photo_tmpname (dlg));
311	break;
312
313	case WM_PAINT:
314	if (k->has_photo)
315	keyprops_show_photo (dlg);
316	break;
317
318	case WM_SYSCOMMAND:
319	if (LOWORD (wparam) == SC_CLOSE)
320	EndDialog (dlg, TRUE);
321	return FALSE;
322
323	case WM_COMMAND:
324	switch (LOWORD (wparam)) {
325	case IDOK:
326	EndDialog (dlg, TRUE);
327	return TRUE;
328
329	case IDC_KEYPROPS_OT_CHANGE:
330	if (do_check_key (key)) {
331	msg_box (dlg, _("The status of this key is 'revoked' or 'expired'.\n"
332	"You cannot change the ownertrust of such keys."),
333	_("WinPT Warning"), MB_ERR);
334	return TRUE;
335	}
336	if (!k->key_pair && key->uids->validity < 3) {
337	rc = msg_box (dlg, _("This is a non-valid key.\n"
338	"Modifying the ownertrust has no effect on such keys.\n\n"
339	"Do you really want to continue?"),
340	_("WinPT Warning"), MB_ICONWARNING\|MB_YESNO);
341	if (rc == IDNO)
342	return TRUE;
343	}
344	dialog_box_param (glob_hinst, (LPCSTR)IDD_WINPT_KEYEDIT_OWNERTRUST,
345	dlg, (DLGPROC)keyedit_ownertrust_dlg_proc,
346	(LPARAM)k, _("Change Ownertrust"),
347	IDS_WINPT_KEYEDIT_OWNERTRUST);
348	if (k->callback.new_val == -1) { /* Cancel */
349	EndDialog (dlg, FALSE);
350	break;
351	}
352
353	inf = ownertrust_to_string (k->callback.new_val, k->key_pair);
354	SetDlgItemText (dlg, IDC_KEYPROPS_OT, inf);
355	msg_box (dlg, _("Ownertrust successfully changed."),
356	_("GnuPG Status"), MB_OK);
357
358	keycache_update (0, key->subkeys->keyid);
359	return TRUE;
360
361	case IDC_KEYPROPS_CHANGE_PWD:
362	keyedit_change_passwd (k, dlg);
363	return TRUE;
364
365	case IDC_KEYPROPS_REVOKERS:
366	k->update = dialog_box_param (
367	glob_hinst, (LPCTSTR)IDD_WINPT_KEYREVOKERS, dlg,
368	key_revokers_dlg_proc, (LPARAM)key,
369	_("Key Revokers"), IDS_WINPT_KEY_REVOKERS);
370	break;
371	}
372	}
373
374	return FALSE;
375	}