/[winpt]/trunk/Src/wptKeysignDlg.cpp
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Annotation of /trunk/Src/wptKeysignDlg.cpp

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Revision 211 - (hide annotations)
Sun May 7 12:36:48 2006 UTC (18 years, 9 months ago) by twoaday
File size: 12537 byte(s)


1 werner 36 /* wptKeysignDlg.cpp - Key signing dialog
2 twoaday 170 * Copyright (C) 2001-2006 Timo Schulz
3 werner 36 *
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     #include <commctrl.h>
26 twoaday 181 #include <time.h>
27 werner 36
28 werner 47 #include "resource.h"
29 werner 36 #include "wptGPG.h"
30     #include "wptNLS.h"
31     #include "wptW32API.h"
32     #include "wptVersion.h"
33     #include "wptTypes.h"
34     #include "wptErrors.h"
35     #include "wptCommonCtl.h"
36     #include "wptContext.h"
37     #include "wptDlgs.h"
38     #include "wptUTF8.h"
39     #include "wptRegistry.h"
40 werner 47 #include "wptKeylist.h"
41 werner 36 #include "wptKeyEdit.h"
42    
43    
44     /* Return a beautified printable fingerprint of @fpr. */
45     static const char*
46     get_printable_fpr (const char *fpr)
47     {
48     static char pfpr[64];
49     int pos = 0;
50     size_t i;
51    
52     for (i = 0; i < strlen (fpr); i += 4) {
53     pfpr[pos++] = fpr[i];
54     pfpr[pos++] = fpr[i+1];
55     pfpr[pos++] = fpr[i+2];
56     pfpr[pos++] = fpr[i+3];
57     pfpr[pos++] = ' ';
58     }
59     return pfpr;
60     }
61    
62    
63     /* Return human friendly information about the key @key. */
64     static const char*
65     get_keyinfo (gpgme_key_t key)
66     {
67     static char buf[64+16];
68     struct winpt_key_s k;
69    
70     memset (&k, 0, sizeof (k));
71     winpt_get_seckey (key->subkeys->keyid, &k);
72 twoaday 211 _snprintf (buf, DIM (buf)-1-16, _("%d-bit %s key, ID 0x%s"),
73 werner 36 key->subkeys->length,
74     get_key_pubalgo (key->subkeys->pubkey_algo),
75     key->subkeys->keyid+8);
76     if (k.ext->gloflags.divert_to_card)
77     strcat (buf, " (Card)");
78     return buf;
79     }
80    
81    
82     /* Fill the secret key combo-box with all entries from the cache.
83     @dlg is the handle to the combo-box. @keyid show which key to skip.
84     Return value: 0 on success. */
85     static int
86     do_fill_seckeylist (HWND dlg, const char *keyid)
87     {
88     gpg_keycache_t sec;
89 twoaday 167 gpgme_key_t pk, defkey;
90     const char *s;
91     char *uid, *p;
92     int i = 0, n = 0, curr_sel = 0;
93 werner 36
94     sec = keycache_get_ctx (0);
95     if (!sec)
96     BUG (0);
97 twoaday 167 gpg_keycache_get_default_key (sec, &defkey);
98 werner 36 gpg_keycache_rewind (sec);
99     while (!gpg_keycache_next_key (sec, 1, &pk)) {
100     if (!pk)
101     continue;
102     s = pk->subkeys->keyid;
103     if (!strcmp (s, keyid))
104     continue;
105     /* skip all ElGamal sign+encrypt keys */
106     if (pk->subkeys->pubkey_algo == GPGME_PK_ELG)
107     continue;
108     /* make sure the public key is okay not: revoked, expired or disabled. */
109     if (pk->expired ||pk->revoked || pk->disabled)
110     continue;
111     s = pk->uids->name;
112     if (!s)
113     continue;
114 twoaday 167 if (defkey && !strcmp (defkey->subkeys->keyid, pk->subkeys->keyid))
115     curr_sel = i;
116 twoaday 187 uid = utf8_to_native (s);
117 werner 36 p = new char[strlen (uid) + 64];
118     if (!p)
119     BUG (NULL);
120     _snprintf (p, strlen (uid) + 63, "%s (%s)", uid, get_keyinfo (pk));
121 twoaday 167 SendDlgItemMessage (dlg, IDC_KEYSIGN_KEYLIST,
122     CB_ADDSTRING, i, (LPARAM)(char *)p);
123     SendDlgItemMessage (dlg, IDC_KEYSIGN_KEYLIST,
124     CB_SETITEMDATA, i++, (LPARAM)(DWORD)pk);
125 werner 36 free_if_alloc (p);
126     free (uid);
127     n++;
128     }
129 twoaday 167 SendDlgItemMessage (dlg, IDC_KEYSIGN_KEYLIST,
130     CB_SETCURSEL, (WPARAM)curr_sel, 0);
131 werner 36 if (!n)
132     return -1;
133     return 0;
134     }
135    
136    
137     /* Check if the selected key is protected and en- or disable the
138     passphrase control. */
139     static void
140     do_check_protection (HWND dlg)
141     {
142     int idx, protec;
143     gpgme_key_t key;
144     struct winpt_key_s k;
145    
146     idx = SendDlgItemMessage( dlg, IDC_KEYSIGN_KEYLIST, CB_GETCURSEL, 0, 0 );
147     key = (gpgme_key_t)SendDlgItemMessage( dlg, IDC_KEYSIGN_KEYLIST, CB_GETITEMDATA, (WPARAM)idx, 0 );
148     if (key) {
149     winpt_get_seckey (key->subkeys->keyid, &k);
150     protec = k.is_protected;
151     if (!protec)
152     protec = k.ext->gloflags.divert_to_card;
153     EnableWindow (GetDlgItem (dlg, IDC_KEYSIGN_PASSPHRASE), protec? TRUE : FALSE);
154     }
155     }
156    
157    
158     /* Dialog box procedure to choose the signature class. */
159     BOOL CALLBACK
160     sig_class_dlg_proc (HWND dlg, UINT msg, WPARAM wparam, LPARAM lparam)
161     {
162 twoaday 170 int sig_class = 0;
163    
164 werner 36 switch (msg) {
165     case WM_INITDIALOG:
166     SetWindowText (dlg, _("Choose Signature Class"));
167     SetDlgItemText (dlg, IDC_SIGCLASS_TITLEINF, _("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\"."));
168     SetDlgItemText (dlg, IDC_SIGCLASS_CLASS0, _("(0) I will not answer (default)"));
169     SetDlgItemText (dlg, IDC_SIGCLASS_CLASS1, _("(1) I have not checked at all."));
170     SetDlgItemText (dlg, IDC_SIGCLASS_CLASS2, _("(2) I have done causal checking."));
171     SetDlgItemText (dlg, IDC_SIGCLASS_CLASS3, _("(3) I have done very careful checkings."));
172     CheckDlgButton (dlg, IDC_SIGCLASS_CLASS0, BST_CHECKED);
173     SetForegroundWindow (dlg);
174     center_window (dlg, NULL);
175     return TRUE;
176    
177     case WM_COMMAND:
178 twoaday 170 switch (LOWORD (wparam)) {
179 werner 36 case IDOK:
180     if (IsDlgButtonChecked (dlg, IDC_SIGCLASS_CLASS0))
181 twoaday 170 sig_class = 0;
182 werner 36 else if (IsDlgButtonChecked (dlg, IDC_SIGCLASS_CLASS1))
183 twoaday 170 sig_class = 1;
184 werner 36 else if (IsDlgButtonChecked (dlg, IDC_SIGCLASS_CLASS2))
185 twoaday 170 sig_class = 2;
186 werner 36 else if (IsDlgButtonChecked (dlg, IDC_SIGCLASS_CLASS3))
187 twoaday 170 sig_class = 3;
188 werner 36 else
189 twoaday 170 sig_class = 0;
190     EndDialog (dlg, sig_class);
191 werner 36 return TRUE;
192 twoaday 170
193     case IDCANCEL:
194     EndDialog (dlg, 0);
195     return TRUE;
196 werner 36 }
197     break;
198     }
199    
200     return FALSE;
201     }
202    
203    
204     /* Return the humand friendly expiration date of @key. */
205     static const char*
206     get_expire_date (gpgme_key_t key)
207     {
208     u32 u = key->subkeys->expires;
209     if (!u)
210     return _("never");
211     return get_key_expire_date (u);
212     }
213    
214     /* Display photo of key @key in a separate window. */
215     static void
216     show_photo (winpt_key_t key)
217     {
218     /* XXX: fill it with life. */
219     }
220    
221    
222 twoaday 181 /* Check if the given system time @st points to today. */
223     static int
224     date_is_today (SYSTEMTIME *st)
225     {
226     time_t t;
227     struct tm *tm;
228    
229     t = time (NULL);
230     tm = localtime (&t);
231     if (st->wDay == tm->tm_mday &&
232     st->wYear == tm->tm_year+1900 &&
233     st->wMonth == tm->tm_mon+1)
234     return -1;
235     return 0;
236     }
237    
238    
239 werner 36 /* Dialog box procedure to sign a key. */
240     BOOL CALLBACK
241     keysign_dlg_proc (HWND dlg, UINT msg, WPARAM wparam, LPARAM lparam)
242     {
243     static winpt_key_t key;
244     GpgKeyEdit *ke;
245     gpgme_error_t err;
246     gpgme_key_t k;
247     SYSTEMTIME st;
248     HWND h;
249     char keymsg[2048], pwd[256];
250     const char *keyid, *s;
251     int type, expires=0, idx;
252 twoaday 170 int sig_class = 0;
253 werner 36
254 twoaday 177 switch (msg) {
255 werner 36 case WM_INITDIALOG:
256 twoaday 77 if (lparam == 0)
257 twoaday 177 dlg_fatal_error (dlg, "could not get dialog param.");
258 werner 36 SetWindowText (dlg, _("Key Signing"));
259     key = (winpt_key_t) lparam;
260     _snprintf (keymsg, sizeof keymsg -1,
261     _("pub %d/%s created: %s expires: %s\n\n"
262     "Primary key fingerprint: %s\n\n"
263     "\t%s\n\n"
264     "\nAre you really sure that you want to sign this key with YOUR key?\n"),
265     key->ctx->subkeys->length,
266     key->ctx->subkeys->keyid+8,
267     get_key_created (key->ctx->subkeys->timestamp),
268     get_expire_date (key->ctx),
269     get_printable_fpr (key->ctx->subkeys->fpr),
270 twoaday 205 key->ext->uids->uid);
271 werner 36 s = key->ctx->subkeys->keyid;
272     if (do_fill_seckeylist (dlg, s)) {
273     msg_box (dlg, _("No valid secret key found."), _("Key Signing"), MB_ERR);
274     EndDialog (dlg, FALSE);
275 twoaday 204 break;
276 werner 36 }
277 twoaday 176 do_check_protection (dlg);
278 twoaday 205 SetDlgItemText (dlg, IDC_KEYSIGN_INFOS, keymsg);
279 werner 36 SetDlgItemText (dlg, IDC_KEYSIGN_LOCAL, _("Sign local only (non exportable signature)"));
280     SetDlgItemText (dlg, IDC_KEYSIGN_EXPSIG, _("Signature expires on"));
281     SetDlgItemText (dlg, IDC_KEYSIGN_NREV, _("Sign non-revocably"));
282     SetDlgItemText (dlg, IDC_KEYSIGN_ASKLEVEL, _("&Ask for certification level"));
283     SetDlgItemText (dlg, IDC_KEYSIGN_PWDINF, _("Passphrase"));
284 twoaday 88 SetDlgItemText (dlg, IDCANCEL, _("&Cancel"));
285     SetDlgItemText (dlg, IDC_KEYSIGN_SHOWIMG, _("&Show photo"));
286 twoaday 178 SetDlgItemText (dlg, IDC_KEYSIGN_HIDE, _("&Hide Typing"));
287 werner 36 CheckDlgButton (dlg, IDC_KEYSIGN_LOCAL, BST_CHECKED);
288     CheckDlgButton (dlg, IDC_KEYSIGN_EXPSIG, BST_UNCHECKED);
289     CheckDlgButton (dlg, IDC_KEYSIGN_ASKLEVEL, BST_UNCHECKED);
290     EnableWindow (GetDlgItem (dlg, IDC_KEYSIGN_EXPIRES), FALSE);
291     if (reg_prefs.expert == 0)
292     ShowWindow (GetDlgItem (dlg, IDC_KEYSIGN_NREV), SW_HIDE);
293     if (key->ext && key->ext->attrib.len > 0)
294     EnableWindow (GetDlgItem (dlg, IDC_KEYSIGN_SHOWIMG), TRUE);
295 twoaday 41 if (!reg_prefs.gpg.ask_cert_level)
296     EnableWindow (GetDlgItem (dlg, IDC_KEYSIGN_ASKLEVEL), FALSE);
297 twoaday 181 if (!reg_prefs.gpg.ask_cert_expire)
298     EnableWindow (GetDlgItem (dlg, IDC_KEYSIGN_EXPSIG), FALSE);
299 twoaday 177 CheckDlgButton (dlg, IDC_KEYSIGN_HIDE, BST_CHECKED);
300 werner 36 SetForegroundWindow (dlg);
301     h = GetDlgItem (dlg, IDC_KEYSIGN_PASSPHRASE);
302     SetFocus (h);
303     return FALSE;
304    
305     case WM_SYSCOMMAND:
306 twoaday 177 if (LOWORD (wparam) == SC_CLOSE) {
307     SetDlgItemText (dlg, IDC_KEYSIGN_PASSPHRASE, "");
308     EndDialog (dlg, TRUE);
309 werner 36 }
310     return FALSE;
311    
312     case WM_COMMAND:
313 twoaday 176 if (HIWORD (wparam) == CBN_SELCHANGE) {
314 werner 36 do_check_protection (dlg);
315     break;
316     }
317 twoaday 177 if (HIWORD (wparam) == BN_CLICKED &&
318     LOWORD (wparam) == IDC_KEYSIGN_EXPSIG) {
319 werner 36 int enable = IsDlgButtonChecked (dlg, IDC_KEYSIGN_EXPSIG);
320     EnableWindow (GetDlgItem (dlg, IDC_KEYSIGN_EXPIRES), enable? TRUE : FALSE);
321     }
322 twoaday 177 if (HIWORD (wparam) == BN_CLICKED &&
323     LOWORD (wparam) == IDC_KEYSIGN_HIDE) {
324     HWND hwnd = GetDlgItem (dlg, IDC_KEYSIGN_PASSPHRASE);
325     int hide = IsDlgButtonChecked (dlg, IDC_KEYSIGN_HIDE);
326     SendMessage (hwnd, EM_SETPASSWORDCHAR, hide? '*' : 0, 0);
327     SetFocus (hwnd);
328     }
329 werner 36
330 twoaday 170 switch (LOWORD (wparam)) {
331 werner 36 case IDOK:
332     if (IsDlgButtonChecked (dlg, IDC_KEYSIGN_ASKLEVEL))
333 twoaday 170 sig_class = dialog_box_param (glob_hinst,
334     (LPCSTR)IDD_WINPT_SIGCLASS, dlg,
335     sig_class_dlg_proc, (LPARAM)NULL,
336     _("Choose Signature Class"),
337     IDS_WINPT_SIGCLASS);
338 werner 36 type = IsDlgButtonChecked (dlg, IDC_KEYSIGN_LOCAL);
339     if (type)
340     type = GPG_EDITKEY_LSIGN;
341     else
342     type = GPG_EDITKEY_SIGN;
343    
344     if (reg_prefs.expert && IsDlgButtonChecked (dlg, IDC_KEYSIGN_NREV)) {
345     type = GPG_EDITKEY_NRSIGN;
346     if (type == GPG_EDITKEY_LSIGN)
347     type = GPG_EDITKEY_NRLSIGN;
348     }
349     if (IsDlgButtonChecked (dlg, IDC_KEYSIGN_EXPSIG)) {
350     DateTime_GetSystemtime (GetDlgItem (dlg, IDC_KEYSIGN_EXPIRES), &st);
351 twoaday 181 if (date_is_today (&st)) {
352     msg_box (dlg, _("You cannot select today as the expiration date."),
353     _("Key Signing"), MB_INFO);
354     return TRUE;
355     }
356     else
357     expires = 1;
358 werner 36 sprintf (keymsg, "%04d-%02d-%02d", st.wYear, st.wMonth, st.wDay);
359     }
360    
361     /* XXX: check for --ask-cert-level and --ask-cert-expire in the gpg.conf
362     if an advanced button is checked and offer to add it to the config
363     file. */
364    
365     GetDlgItemText( dlg, IDC_KEYSIGN_PASSPHRASE, pwd, DIM (pwd)-1);
366     keyid = key->ctx->subkeys->keyid;
367     if( !keyid ) {
368     msg_box( dlg, _("Could not get Key ID from key."), _("Key Signing"), MB_ERR );
369     return TRUE;
370     }
371     ke = new GpgKeyEdit (keyid);
372     if (!ke)
373     BUG (NULL);
374     ke->setPassphrase (pwd);
375     idx = SendDlgItemMessage (dlg, IDC_KEYSIGN_KEYLIST, CB_GETCURSEL, 0, 0);
376     k = (gpgme_key_t)SendDlgItemMessage (dlg, IDC_KEYSIGN_KEYLIST,
377     CB_GETITEMDATA, (WPARAM)idx, 0);
378     if (k)
379     ke->setLocalUser (k);
380    
381 twoaday 170 err = ke->signKey (type, sig_class, expires? keymsg : "0");
382 twoaday 129 wipememory (pwd, sizeof (pwd));
383 werner 36 if (err) {
384     delete ke;
385     msg_box (dlg, gpgme_strerror (err), _("Key Signing"), MB_ERR);
386     return TRUE;
387     }
388     if (ke->getResult () != 0)
389 twoaday 129 msg_box (dlg, _("This key is already signed by your key"),
390     _("Key Signing"), MB_INFO);
391 werner 36 else {
392 twoaday 170 status_box (dlg, _("Key successfully signed."), _("Key Signing"));
393 werner 36 key->update = 1;
394     }
395     delete ke;
396     EndDialog (dlg, TRUE);
397     return TRUE;
398    
399     case IDCANCEL:
400     EndDialog (dlg, FALSE);
401     return TRUE;
402    
403     case IDC_KEYSIGN_SHOWIMG:
404     show_photo (key);
405     return TRUE;
406     }
407     break;
408     }
409    
410     return FALSE;
411     }
412    

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