| 1 |
/* wptKeysignDlg.cpp - Key signing dialog |
| 2 |
* Copyright (C) 2001-2006 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 |
#include <commctrl.h> |
| 26 |
#include <time.h> |
| 27 |
#include <assert.h> |
| 28 |
|
| 29 |
#include "resource.h" |
| 30 |
#include "wptGPG.h" |
| 31 |
#include "wptNLS.h" |
| 32 |
#include "wptW32API.h" |
| 33 |
#include "wptVersion.h" |
| 34 |
#include "wptTypes.h" |
| 35 |
#include "wptErrors.h" |
| 36 |
#include "wptCommonCtl.h" |
| 37 |
#include "wptContext.h" |
| 38 |
#include "wptDlgs.h" |
| 39 |
#include "wptUTF8.h" |
| 40 |
#include "wptRegistry.h" |
| 41 |
#include "wptKeylist.h" |
| 42 |
#include "wptKeyEdit.h" |
| 43 |
|
| 44 |
|
| 45 |
void key_unload_photo (HWND dlg); |
| 46 |
int key_load_photo (HWND dlg, gpgme_key_t key, gpgme_validity_t *r_valid); |
| 47 |
const char* get_photo_tmpname (HWND dlg); |
| 48 |
|
| 49 |
/* Return a beautified printable fingerprint of @fpr. */ |
| 50 |
static const char* |
| 51 |
get_printable_fpr (const char *fpr) |
| 52 |
{ |
| 53 |
static char pfpr[64]; |
| 54 |
int pos = 0; |
| 55 |
size_t i; |
| 56 |
|
| 57 |
for (i = 0; i < strlen (fpr); i += 4) { |
| 58 |
pfpr[pos++] = fpr[i]; |
| 59 |
pfpr[pos++] = fpr[i+1]; |
| 60 |
pfpr[pos++] = fpr[i+2]; |
| 61 |
pfpr[pos++] = fpr[i+3]; |
| 62 |
pfpr[pos++] = ' '; |
| 63 |
} |
| 64 |
return pfpr; |
| 65 |
} |
| 66 |
|
| 67 |
|
| 68 |
/* Return human friendly information about the key @key. */ |
| 69 |
const char* |
| 70 |
get_keyinfo (gpgme_key_t key) |
| 71 |
{ |
| 72 |
static char buf[64+16]; |
| 73 |
struct winpt_key_s k; |
| 74 |
|
| 75 |
memset (&k, 0, sizeof (k)); |
| 76 |
if (winpt_get_seckey (key->subkeys->keyid, &k)) |
| 77 |
BUG (0); |
| 78 |
_snprintf (buf, DIM (buf)-1-16, _("%d-bit %s key, ID 0x%s"), |
| 79 |
key->subkeys->length, |
| 80 |
get_key_pubalgo (key->subkeys->pubkey_algo), |
| 81 |
key->subkeys->keyid+8); |
| 82 |
if (k.ext->gloflags.divert_to_card) |
| 83 |
strcat (buf, " (Card)"); |
| 84 |
return buf; |
| 85 |
} |
| 86 |
|
| 87 |
|
| 88 |
/* Fill the secret key combo-box with all entries from the cache. |
| 89 |
@dlg is the handle to the combo-box. @keyid show which key to skip. |
| 90 |
Return value: 0 on success. */ |
| 91 |
static int |
| 92 |
do_fill_seckeylist (HWND dlg, const char *keyid) |
| 93 |
{ |
| 94 |
gpg_keycache_t sec; |
| 95 |
gpgme_key_t pk, defkey; |
| 96 |
const char *s, *inf; |
| 97 |
char *uid, *p; |
| 98 |
int i = 0, n = 0, curr_sel = 0; |
| 99 |
int len = 0; |
| 100 |
|
| 101 |
sec = keycache_get_ctx (0); |
| 102 |
gpg_keycache_get_default_key (sec, &defkey); |
| 103 |
gpg_keycache_rewind (sec); |
| 104 |
while (!gpg_keycache_next_key (sec, 1, &pk)) { |
| 105 |
if (!pk) |
| 106 |
continue; |
| 107 |
s = pk->subkeys->keyid; |
| 108 |
if (!strcmp (s, keyid)) |
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continue; |
| 110 |
/* skip all ElGamal sign+encrypt keys */ |
| 111 |
if (pk->subkeys->pubkey_algo == GPGME_PK_ELG) |
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continue; |
| 113 |
/* make sure the public key is okay not: revoked, expired or disabled. */ |
| 114 |
if (pk->expired ||pk->revoked || pk->disabled) |
| 115 |
continue; |
| 116 |
s = pk->uids->name; |
| 117 |
if (!s) |
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continue; |
| 119 |
if (defkey && !strcmp (defkey->subkeys->keyid, pk->subkeys->keyid)) |
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curr_sel = i; |
| 121 |
uid = utf8_to_native (s); |
| 122 |
inf = get_keyinfo (pk); |
| 123 |
len = strlen (uid) + strlen (inf) + 8; |
| 124 |
p = new char[len+1]; |
| 125 |
if (!p) |
| 126 |
BUG (NULL); |
| 127 |
_snprintf (p, len, "%s (%s)", uid, inf); |
| 128 |
SendDlgItemMessage (dlg, IDC_KEYSIGN_KEYLIST, |
| 129 |
CB_ADDSTRING, i, (LPARAM)(char *)p); |
| 130 |
SendDlgItemMessage (dlg, IDC_KEYSIGN_KEYLIST, |
| 131 |
CB_SETITEMDATA, i++, (LPARAM)(DWORD)pk); |
| 132 |
free_if_alloc (p); |
| 133 |
safe_free (uid); |
| 134 |
n++; |
| 135 |
} |
| 136 |
SendDlgItemMessage (dlg, IDC_KEYSIGN_KEYLIST, |
| 137 |
CB_SETCURSEL, (WPARAM)curr_sel, 0); |
| 138 |
if (!n) |
| 139 |
return -1; |
| 140 |
return 0; |
| 141 |
} |
| 142 |
|
| 143 |
|
| 144 |
/* Check if the selected key is protected and en- or disable the |
| 145 |
passphrase control. */ |
| 146 |
static void |
| 147 |
do_check_protection (HWND dlg) |
| 148 |
{ |
| 149 |
gpgme_key_t key; |
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struct winpt_key_s k; |
| 151 |
int idx, protec; |
| 152 |
|
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idx = SendDlgItemMessage (dlg, IDC_KEYSIGN_KEYLIST, CB_GETCURSEL, 0, 0); |
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key = (gpgme_key_t)SendDlgItemMessage (dlg, IDC_KEYSIGN_KEYLIST, |
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CB_GETITEMDATA, (WPARAM)idx, 0); |
| 156 |
if (key) { |
| 157 |
if (winpt_get_seckey (key->subkeys->keyid, &k)) |
| 158 |
BUG (0); |
| 159 |
protec = k.is_protected; |
| 160 |
if (!protec) |
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protec = k.ext->gloflags.divert_to_card; |
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EnableWindow (GetDlgItem (dlg, IDC_KEYSIGN_PASSPHRASE), protec? TRUE : FALSE); |
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} |
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} |
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|
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|
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/* Show the photographic ID of the key in a separate dialog window. */ |
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BOOL CALLBACK |
| 169 |
showphoto_dlg_proc (HWND dlg, UINT msg, WPARAM wparam, LPARAM lparam) |
| 170 |
{ |
| 171 |
static winpt_key_t key; |
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char buf[200]; |
| 173 |
|
| 174 |
switch (msg) { |
| 175 |
case WM_INITDIALOG: |
| 176 |
key = (winpt_key_t)lparam; |
| 177 |
if (!key) |
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BUG (0); |
| 179 |
key_load_photo (dlg, key->ctx, NULL); |
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_snprintf (buf, sizeof (buf)-1, _("Photo of %s"), key->uid); |
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SetWindowText (dlg, buf); |
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SetForegroundWindow (dlg); |
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break; |
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|
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case WM_PAINT: |
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if (key->ext && key->ext->attrib.len > 0) { |
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POINT p; |
| 188 |
p.x = p.y = 0; |
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PTD_jpg_show (GetDlgItem (dlg, IDC_SHOWPHOTO_IMG), |
| 190 |
&p, get_photo_tmpname (dlg)); |
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} |
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break; |
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|
| 194 |
case WM_DESTROY: |
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key_unload_photo (dlg); |
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break; |
| 197 |
|
| 198 |
case WM_COMMAND: |
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switch (LOWORD (wparam)) { |
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case IDCANCEL: |
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case IDOK: |
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EndDialog (dlg, TRUE); |
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break; |
| 204 |
} |
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break; |
| 206 |
} |
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|
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return FALSE; |
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} |
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|
| 211 |
|
| 212 |
/* Dialog box procedure to choose the signature class. */ |
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BOOL CALLBACK |
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sig_class_dlg_proc (HWND dlg, UINT msg, WPARAM wparam, LPARAM lparam) |
| 215 |
{ |
| 216 |
HWND parent; |
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int sig_class = 0; |
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|
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switch (msg) { |
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case WM_INITDIALOG: |
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parent = (HWND)lparam; |
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SetWindowText (dlg, _("Choose Signature Class")); |
| 223 |
SetDlgItemText (dlg, IDC_SIGCLASS_TITLEINF, |
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_("How carefully have you verified the key you are about to sign actually belongs to the person? If you don't know what to anwser, use \"0\".")); |
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SetDlgItemText (dlg, IDC_SIGCLASS_CLASS0, |
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_("(0) I will not answer (default)")); |
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SetDlgItemText (dlg, IDC_SIGCLASS_CLASS1, |
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_("(1) I have not checked at all.")); |
| 229 |
SetDlgItemText (dlg, IDC_SIGCLASS_CLASS2, |
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_("(2) I have done causal checking.")); |
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SetDlgItemText (dlg, IDC_SIGCLASS_CLASS3, |
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_("(3) I have done very careful checkings.")); |
| 233 |
CheckDlgButton (dlg, IDC_SIGCLASS_CLASS0, BST_CHECKED); |
| 234 |
SetForegroundWindow (dlg); |
| 235 |
center_window (dlg, parent? parent : NULL); |
| 236 |
return TRUE; |
| 237 |
|
| 238 |
case WM_COMMAND: |
| 239 |
switch (LOWORD (wparam)) { |
| 240 |
case IDOK: |
| 241 |
if (IsDlgButtonChecked (dlg, IDC_SIGCLASS_CLASS0)) |
| 242 |
sig_class = 0; |
| 243 |
else if (IsDlgButtonChecked (dlg, IDC_SIGCLASS_CLASS1)) |
| 244 |
sig_class = 1; |
| 245 |
else if (IsDlgButtonChecked (dlg, IDC_SIGCLASS_CLASS2)) |
| 246 |
sig_class = 2; |
| 247 |
else if (IsDlgButtonChecked (dlg, IDC_SIGCLASS_CLASS3)) |
| 248 |
sig_class = 3; |
| 249 |
else |
| 250 |
sig_class = 0; |
| 251 |
EndDialog (dlg, sig_class); |
| 252 |
return TRUE; |
| 253 |
|
| 254 |
case IDCANCEL: |
| 255 |
EndDialog (dlg, 0); |
| 256 |
return TRUE; |
| 257 |
} |
| 258 |
break; |
| 259 |
} |
| 260 |
|
| 261 |
return FALSE; |
| 262 |
} |
| 263 |
|
| 264 |
|
| 265 |
/* Return the humand friendly expiration date of @key. */ |
| 266 |
static const char* |
| 267 |
get_expire_date (gpgme_key_t key) |
| 268 |
{ |
| 269 |
u32 u = key->subkeys->expires; |
| 270 |
if (!u) |
| 271 |
return _("never"); |
| 272 |
return get_key_expire_date (u); |
| 273 |
} |
| 274 |
|
| 275 |
|
| 276 |
/* Check if the given system time @st points to today. */ |
| 277 |
static int |
| 278 |
date_is_today (SYSTEMTIME *st) |
| 279 |
{ |
| 280 |
time_t t; |
| 281 |
struct tm *tm; |
| 282 |
|
| 283 |
t = time (NULL); |
| 284 |
tm = localtime (&t); |
| 285 |
if (st->wDay == tm->tm_mday && |
| 286 |
st->wYear == tm->tm_year+1900 && |
| 287 |
st->wMonth == tm->tm_mon+1) |
| 288 |
return -1; |
| 289 |
return 0; |
| 290 |
} |
| 291 |
|
| 292 |
|
| 293 |
/* Dialog box procedure to sign a key. */ |
| 294 |
BOOL CALLBACK |
| 295 |
keysign_dlg_proc (HWND dlg, UINT msg, WPARAM wparam, LPARAM lparam) |
| 296 |
{ |
| 297 |
static winpt_key_t key; |
| 298 |
GpgKeyEdit *ke; |
| 299 |
gpgme_error_t err; |
| 300 |
gpgme_key_t k; |
| 301 |
SYSTEMTIME st; |
| 302 |
char keymsg[2048], *pwd; |
| 303 |
const char *keyid, *s; |
| 304 |
int type, expires=0, idx; |
| 305 |
int sig_class = 0; |
| 306 |
|
| 307 |
switch (msg) { |
| 308 |
case WM_INITDIALOG: |
| 309 |
key = (winpt_key_t) lparam; |
| 310 |
if (!key) |
| 311 |
BUG (0); |
| 312 |
_snprintf (keymsg, sizeof keymsg -1, |
| 313 |
_("pub %d/%s created: %s expires: %s\n\n" |
| 314 |
"Primary key fingerprint: %s\n\n" |
| 315 |
"\t%s\n\n" |
| 316 |
"\nAre you really sure that you want to sign this key with YOUR key?\n"), |
| 317 |
key->ctx->subkeys->length, |
| 318 |
key->ctx->subkeys->keyid+8, |
| 319 |
get_key_created (key->ctx->subkeys->timestamp), |
| 320 |
get_expire_date (key->ctx), |
| 321 |
get_printable_fpr (key->ctx->subkeys->fpr), |
| 322 |
key->ext->uids->uid); |
| 323 |
s = key->ctx->subkeys->keyid; |
| 324 |
if (do_fill_seckeylist (dlg, s)) { |
| 325 |
msg_box (dlg, _("No valid secret key found."), _("Key Signing"), MB_ERR); |
| 326 |
EndDialog (dlg, FALSE); |
| 327 |
return TRUE; |
| 328 |
} |
| 329 |
do_check_protection (dlg); |
| 330 |
SetDlgItemText (dlg, IDC_KEYSIGN_INFOS, keymsg); |
| 331 |
SetDlgItemText (dlg, IDC_KEYSIGN_LOCAL, _("Sign local only (non exportable signature)")); |
| 332 |
SetDlgItemText (dlg, IDC_KEYSIGN_EXPSIG, _("Signature expires on")); |
| 333 |
SetDlgItemText (dlg, IDC_KEYSIGN_NREV, _("Sign non-revocably")); |
| 334 |
SetDlgItemText (dlg, IDC_KEYSIGN_ASKLEVEL, _("&Ask for certification level")); |
| 335 |
SetDlgItemText (dlg, IDC_KEYSIGN_PWDINF, _("Passphrase")); |
| 336 |
SetDlgItemText (dlg, IDCANCEL, _("&Cancel")); |
| 337 |
SetDlgItemText (dlg, IDC_KEYSIGN_SHOWIMG, _("&Show photo")); |
| 338 |
SetDlgItemText (dlg, IDC_KEYSIGN_HIDE, _("&Hide Typing")); |
| 339 |
SetWindowText (dlg, _("Key Signing")); |
| 340 |
CheckDlgButton (dlg, IDC_KEYSIGN_LOCAL, BST_CHECKED); |
| 341 |
CheckDlgButton (dlg, IDC_KEYSIGN_EXPSIG, BST_UNCHECKED); |
| 342 |
CheckDlgButton (dlg, IDC_KEYSIGN_ASKLEVEL, BST_UNCHECKED); |
| 343 |
EnableWindow (GetDlgItem (dlg, IDC_KEYSIGN_EXPIRES), FALSE); |
| 344 |
if (reg_prefs.expert == 0) |
| 345 |
ShowWindow (GetDlgItem (dlg, IDC_KEYSIGN_NREV), SW_HIDE); |
| 346 |
if (key->ext && key->ext->attrib.len > 0) |
| 347 |
EnableWindow (GetDlgItem (dlg, IDC_KEYSIGN_SHOWIMG), TRUE); |
| 348 |
if (!reg_prefs.gpg.ask_cert_level) |
| 349 |
EnableWindow (GetDlgItem (dlg, IDC_KEYSIGN_ASKLEVEL), FALSE); |
| 350 |
if (!reg_prefs.gpg.ask_cert_expire) |
| 351 |
EnableWindow (GetDlgItem (dlg, IDC_KEYSIGN_EXPSIG), FALSE); |
| 352 |
CheckDlgButton (dlg, IDC_KEYSIGN_HIDE, BST_CHECKED); |
| 353 |
SetForegroundWindow (dlg); |
| 354 |
SetFocus (GetDlgItem (dlg, IDC_KEYSIGN_PASSPHRASE)); |
| 355 |
return FALSE; |
| 356 |
|
| 357 |
case WM_COMMAND: |
| 358 |
if (HIWORD (wparam) == CBN_SELCHANGE) { |
| 359 |
do_check_protection (dlg); |
| 360 |
break; |
| 361 |
} |
| 362 |
if (HIWORD (wparam) == BN_CLICKED && |
| 363 |
LOWORD (wparam) == IDC_KEYSIGN_EXPSIG) { |
| 364 |
int enable = IsDlgButtonChecked (dlg, IDC_KEYSIGN_EXPSIG); |
| 365 |
|
| 366 |
EnableWindow (GetDlgItem (dlg, IDC_KEYSIGN_EXPIRES), enable? TRUE : FALSE); |
| 367 |
} |
| 368 |
if (HIWORD (wparam) == BN_CLICKED && |
| 369 |
LOWORD (wparam) == IDC_KEYSIGN_HIDE) { |
| 370 |
HWND hwnd = GetDlgItem (dlg, IDC_KEYSIGN_PASSPHRASE); |
| 371 |
int hide = IsDlgButtonChecked (dlg, IDC_KEYSIGN_HIDE); |
| 372 |
|
| 373 |
SendMessage (hwnd, EM_SETPASSWORDCHAR, hide? '*' : 0, 0); |
| 374 |
SetFocus (hwnd); |
| 375 |
} |
| 376 |
|
| 377 |
switch (LOWORD (wparam)) { |
| 378 |
case IDOK: |
| 379 |
if (IsDlgButtonChecked (dlg, IDC_KEYSIGN_ASKLEVEL)) |
| 380 |
sig_class = dialog_box_param (glob_hinst, |
| 381 |
(LPCSTR)IDD_WINPT_SIGCLASS, dlg, |
| 382 |
sig_class_dlg_proc, (LPARAM)dlg, |
| 383 |
_("Choose Signature Class"), |
| 384 |
IDS_WINPT_SIGCLASS); |
| 385 |
type = IsDlgButtonChecked (dlg, IDC_KEYSIGN_LOCAL); |
| 386 |
if (type) |
| 387 |
type = GPG_EDITKEY_LSIGN; |
| 388 |
else |
| 389 |
type = GPG_EDITKEY_SIGN; |
| 390 |
|
| 391 |
if (reg_prefs.expert && IsDlgButtonChecked (dlg, IDC_KEYSIGN_NREV)) { |
| 392 |
type = GPG_EDITKEY_NRSIGN; |
| 393 |
if (type == GPG_EDITKEY_LSIGN) |
| 394 |
type = GPG_EDITKEY_NRLSIGN; |
| 395 |
} |
| 396 |
if (IsDlgButtonChecked (dlg, IDC_KEYSIGN_EXPSIG)) { |
| 397 |
DateTime_GetSystemtime (GetDlgItem (dlg, IDC_KEYSIGN_EXPIRES), &st); |
| 398 |
if (date_is_today (&st)) { |
| 399 |
msg_box (dlg, _("You cannot select today as the expiration date."), |
| 400 |
_("Key Signing"), MB_INFO); |
| 401 |
return TRUE; |
| 402 |
} |
| 403 |
else |
| 404 |
expires = 1; |
| 405 |
sprintf (keymsg, "%04d-%02d-%02d", st.wYear, st.wMonth, st.wDay); |
| 406 |
} |
| 407 |
|
| 408 |
/* XXX: check for --ask-cert-level and --ask-cert-expire in the gpg.conf |
| 409 |
if an advanced button is checked and offer to add it to the config |
| 410 |
file. */ |
| 411 |
|
| 412 |
GetDlgItemText_utf8 (dlg, IDC_KEYSIGN_PASSPHRASE, &pwd); |
| 413 |
keyid = key->ctx->subkeys->keyid; |
| 414 |
assert (keyid != NULL); /* should be always true. */ |
| 415 |
ke = new GpgKeyEdit (keyid); |
| 416 |
if (!ke) |
| 417 |
BUG (NULL); |
| 418 |
ke->setPassphrase (pwd); |
| 419 |
idx = SendDlgItemMessage (dlg, IDC_KEYSIGN_KEYLIST, CB_GETCURSEL, 0, 0); |
| 420 |
k = (gpgme_key_t)SendDlgItemMessage (dlg, IDC_KEYSIGN_KEYLIST, |
| 421 |
CB_GETITEMDATA, (WPARAM)idx, 0); |
| 422 |
if (k) |
| 423 |
ke->setLocalUser (k); |
| 424 |
|
| 425 |
err = ke->signKey (type, sig_class, expires? keymsg : "0"); |
| 426 |
sfree_if_alloc (pwd); |
| 427 |
if (err) { |
| 428 |
delete ke; |
| 429 |
msg_box (dlg, gpgme_strerror (err), _("Key Signing"), MB_ERR); |
| 430 |
return TRUE; |
| 431 |
} |
| 432 |
if (ke->getResult () != 0) { |
| 433 |
msg_box (dlg, _("This key is already signed by your key"), |
| 434 |
_("Key Signing"), MB_INFO); |
| 435 |
delete ke; |
| 436 |
return TRUE; |
| 437 |
} |
| 438 |
else { |
| 439 |
status_box (dlg, _("Key successfully signed."), _("Key Signing")); |
| 440 |
key->update = 1; |
| 441 |
} |
| 442 |
delete ke; |
| 443 |
EndDialog (dlg, TRUE); |
| 444 |
return TRUE; |
| 445 |
|
| 446 |
case IDCANCEL: |
| 447 |
EndDialog (dlg, FALSE); |
| 448 |
return TRUE; |
| 449 |
|
| 450 |
case IDC_KEYSIGN_SHOWIMG: |
| 451 |
DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_SHOWPHOTO, |
| 452 |
dlg, showphoto_dlg_proc, (LPARAM)key); |
| 453 |
return TRUE; |
| 454 |
} |
| 455 |
break; |
| 456 |
} |
| 457 |
|
| 458 |
return FALSE; |
| 459 |
} |
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