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

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Revision 217 - (hide annotations)
Mon May 22 14:21:39 2006 UTC (18 years, 9 months ago) by twoaday
File size: 10426 byte(s)
2005-05-20  Timo Schulz  <ts@g10code.de>
                                                                                
        * wptKeyPropsDlg.cpp (keyprops_load_photo): avoid expensive
        process call when no photo is available.
        (keyprops_dlg_proc): avoid static data.
        * wptFileManager.cpp (fm_add_sig_stat): Free memory in case
        of on demand key requests.
        (show_verify_result): Likewise.
        (secret_key_available): Likewise.
        (fm_decrypt, fm_sign): Handle the new on demand key request
        mode and free all memory.


1 werner 36 /* wptKeyPropsDlg.cpp - WinPT key properties dialog
2 twoaday 150 * Copyright (C) 2000, 2001, 2002, 2003, 2005, 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 twoaday 217 #include <assert.h>
26 werner 36
27 werner 47 #include "resource.h"
28 werner 36 #include "wptErrors.h"
29     #include "wptGPG.h"
30     #include "wptCommonCtl.h"
31     #include "wptContext.h" /* for passphrase_s */
32     #include "wptNLS.h"
33     #include "wptDlgs.h"
34     #include "wptTypes.h"
35     #include "wptKeylist.h"
36     #include "wptW32API.h"
37     #include "wptVersion.h"
38     #include "wptKeyEdit.h"
39    
40    
41     /* Check that the key is not expired or revoked. */
42     static int
43     do_check_key (gpgme_key_t key)
44     {
45 twoaday 217 int invalid = 0;
46    
47     invalid = key->expired;
48     if (!invalid)
49     invalid = key->revoked;
50     return invalid;
51 werner 36 }
52    
53    
54     /* Convert a trust integer into a string representation. */
55     static const char*
56 twoaday 150 ownertrust_to_string (int val, bool is_keypair)
57 werner 36 {
58 twoaday 41 const char *inf;
59 werner 36 int id = val;
60 twoaday 41
61 werner 36 switch (id) {
62     case 1: inf = _("Don't know"); break;
63     case 2: inf = _("I do NOT trust"); break;
64     case 3: inf = _("I trust marginally"); break;
65     case 4: inf = _("I trust fully"); break;
66     case 5:
67 twoaday 150 case 6:
68     if (is_keypair)
69     inf = _("I trust ultimately (implicit)");
70     else
71     inf = _("I trust ultimately"); break;
72 werner 36 default:inf = _("Unknown"); break;
73     }
74    
75     return inf;
76     }
77    
78    
79     /* Generate a unique temp name for the photo which
80     depends on the dialog handle and return it. */
81     static const char*
82     get_photo_tmpname (HWND dlg)
83     {
84 twoaday 174 static char buf[MAX_PATH+128+1];
85     char name[64];
86 werner 36
87 twoaday 174 _snprintf (name, sizeof (name)-1, "winpt_photo_%08lX.tmp", (DWORD)dlg);
88 twoaday 211 get_temp_name (buf, DIM (buf)-1, name);
89 werner 36 return buf;
90     }
91    
92    
93 twoaday 129 static void
94     draw_nophoto_img (HWND dlg)
95     {
96     /*..
97     n = DrawText (hdc, "No Photo-ID", -1, &r, DT_LEFT);
98     ..*/
99     }
100    
101    
102 werner 36 /* Load the photo from the key @key */
103     static int
104     keyprops_load_photo (HWND dlg, gpgme_key_t key, gpgme_validity_t *r_valid)
105     {
106     winpt_key_s k;
107     FILE *f;
108     const BYTE *img;
109     DWORD imglen = 0;
110     int pos=0;
111    
112 twoaday 211 if (winpt_get_pubkey (key->subkeys->keyid, &k))
113     BUG (0);
114 werner 36 img = k.ext->attrib.d;
115     imglen = k.ext->attrib.len;
116 twoaday 217 if (img && !k.ext->attrib.validity)
117 werner 36 get_uat_validity (key->subkeys->keyid, &k.ext->attrib.validity);
118     *r_valid = k.ext->attrib.validity;
119    
120 twoaday 129 if (!img || !imglen) {
121     draw_nophoto_img (dlg);
122 werner 36 return -1;
123 twoaday 129 }
124 twoaday 133
125 werner 36 f = fopen (get_photo_tmpname (dlg), "wb");
126     if (f) {
127     pos += 16;
128     fwrite (img + pos, 1, imglen - pos, f);
129     fclose (f);
130     }
131     return 0;
132     }
133    
134    
135     /* Display the photo in the image control in the dialog @dlg. */
136     static int
137     keyprops_show_photo (HWND dlg)
138     {
139     RECT r;
140     POINT p;
141     HWND h;
142    
143     h = GetDlgItem (dlg, IDC_KEYPROPS_IMG);
144     GetWindowRect (h, &r);
145     p.x = r.left + 5;
146     p.y = r.top - 2;
147     memset (&p, 0, sizeof (p));
148     PTD_jpg_show (h, &p, get_photo_tmpname (dlg));
149    
150     return 0;
151     }
152    
153    
154     /* Return string representation of the key validity. @key. */
155     static const char*
156     get_validity (gpgme_key_t key)
157     {
158 twoaday 211 if (key->expired)
159 werner 36 return _("Expired");
160 twoaday 211 if (key->revoked)
161 werner 36 return _("Revoked");
162 twoaday 211 if (key->disabled)
163 twoaday 41 return _("Disabled");
164 werner 36 return get_key_trust2 (NULL, key->uids->validity, 0, 0);
165     }
166    
167    
168     /* Return the preferred sym. algorithm from @key as a string. */
169     static const char*
170     get_pref_cipher (winpt_key_t k)
171     {
172     if (k->is_v3)
173     return "IDEA";
174 twoaday 211 if (!k->ext || !k->ext->sym_prefs)
175 werner 36 return "3DES";
176     switch (*k->ext->sym_prefs) {
177     case 1: return "IDEA";
178     case 2: return "3DES";
179     case 3: return "CAST5";
180     case 4: return "Blowfish";
181 twoaday 211 case 7: return "AES128";
182     case 8: return "AES192";
183     case 9: return "AES256";
184 werner 36 case 10:return "Twofish";
185     }
186     return "Unknown";
187     }
188    
189    
190     /* Return true if the key has designated revokers. */
191     static bool
192     check_for_desig_rev (gpgme_key_t key)
193     {
194 twoaday 217 winpt_key_s kk;
195    
196     memset (&kk, 0, sizeof (kk));
197     if (!winpt_get_pubkey (key->subkeys->keyid, &kk))
198     return kk.ext->gloflags.has_desig_rev? true : false;
199 werner 36 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 twoaday 181 if (!k->ext || !k->ext->card_type)
210 werner 36 return "";
211 twoaday 217 _snprintf (buf, DIM (buf)-1, _("Card-Type: %s\r\n"), k->ext->card_type);
212 werner 36 return buf;
213     }
214    
215    
216 twoaday 211 /* Return 1 if at least one user-ID is valid. */
217     static int
218 twoaday 217 key_is_valid (gpgme_key_t key)
219 twoaday 211 {
220     gpgme_user_id_t u;
221    
222 twoaday 217 for (u=key->uids; u; u=u->next) {
223 twoaday 211 if (u->validity >= GPGME_VALIDITY_MARGINAL)
224     return 1;
225     }
226     return 0;
227     }
228    
229    
230    
231 werner 36 /* Display the key information for key @k.
232     Return value: gpgme key on success. */
233     static void
234 twoaday 211 display_key_info (HWND dlg, winpt_key_t k)
235 werner 36 {
236 twoaday 181 gpgme_key_t key;
237 twoaday 211 struct winpt_key_s sk;
238 werner 36 char info[512];
239     const char *inf;
240 twoaday 181 DWORD created, expires;
241 werner 36
242 twoaday 211 gpg_keycache_update_attr (k->ext, KC_ATTR_PREFSYM, 0);
243 twoaday 217 memset (&sk, 0, sizeof (sk));
244 twoaday 181 if (k->key_pair && !winpt_get_seckey (k->keyid, &sk))
245     k->is_protected = sk.is_protected;
246 twoaday 211 key = k->ext->key;
247 twoaday 181 created = key->subkeys->timestamp;
248     expires = key->subkeys->expires;
249 werner 36 _snprintf (info, DIM (info)-1,
250     _("Type: %s\r\n"
251 twoaday 211 "Key ID: 0x%s\r\n"
252 werner 36 "Algorithm: %s\r\n"
253 twoaday 128 "Size: %s bits\r\n"
254 werner 36 "Created: %s\r\n"
255     "Expires: %s\r\n"
256     "Validity: %s\r\n"
257     "Cipher: %s\r\n"
258     "%s\r\n"),
259     get_key_type (key),
260     k->keyid,
261     get_key_algo (key, 0),
262     get_key_size (key, 0),
263     get_key_created (created),
264     get_key_expire_date (expires),
265     get_validity (key),
266 twoaday 211 get_pref_cipher (k),
267 twoaday 181 get_card_type (&sk));
268 werner 36
269     SetDlgItemText (dlg, IDC_KEYPROPS_INFO, info);
270     SetDlgItemText (dlg, IDC_KEYPROPS_FPR, get_key_fpr (key));
271 twoaday 150 inf = ownertrust_to_string (key->owner_trust, k->key_pair);
272 werner 36 SetDlgItemText (dlg, IDC_KEYPROPS_OT, inf);
273     }
274    
275    
276 twoaday 217 /* Context to store associated data of the dialog. */
277     struct prop_info_s {
278     winpt_key_t key;
279     };
280    
281    
282     static void
283     on_init_dialog (HWND dlg, WPARAM wparam, LPARAM lparam)
284     {
285     gpgme_validity_t valid;
286    
287     winpt_key_t k = (winpt_key_t)lparam;
288     SetWindowText (dlg, _("Key Properties"));
289     SetDlgItemText (dlg, IDC_KEYPROPS_OT_CHANGE, _("&Change"));
290     SetDlgItemText (dlg, IDC_KEYPROPS_REVOKERS, _("&Revokers"));
291     SetDlgItemText (dlg, IDC_KEYPROPS_CHANGE_PWD, _("Change &Password"));
292     SetDlgItemText (dlg, IDC_KEYPROPS_OTINF, _("Ownertrust"));
293    
294     display_key_info (dlg, k);
295     if (!keyprops_load_photo (dlg, k->ctx, &valid)) {
296     k->has_photo = 1;
297     if (valid < GPGME_VALIDITY_MARGINAL)
298     SetDlgItemText (dlg, IDC_KEYPROPS_IMGINF, _("Photo-ID not validated."));
299     }
300     if (k->key_pair)
301     EnableWindow (GetDlgItem (dlg, IDC_KEYPROPS_CHANGE_PWD), TRUE);
302     if (check_for_desig_rev (k->ctx))
303     EnableWindow (GetDlgItem (dlg, IDC_KEYPROPS_REVOKERS), TRUE);
304     if (do_check_key (k->ctx))
305     EnableWindow (GetDlgItem (dlg, IDC_KEYPROPS_OT_CHANGE), FALSE);
306     center_window (dlg, NULL);
307     SetForegroundWindow (dlg);
308     }
309    
310    
311 werner 36 /* Dialog box procedure to show the key properties. */
312     BOOL CALLBACK
313     keyprops_dlg_proc (HWND dlg, UINT msg, WPARAM wparam, LPARAM lparam)
314     {
315 twoaday 217 struct prop_info_s *prop = NULL;
316 werner 36 const char *inf;
317     int rc;
318    
319 twoaday 217 if (msg != WM_INITDIALOG &&
320     (prop = (prop_info_s*)GetWindowLong (dlg, GWL_USERDATA)) == NULL)
321     return FALSE;
322    
323 werner 36 switch (msg) {
324     case WM_INITDIALOG:
325 twoaday 217 assert (lparam != NULL);
326     prop = new struct prop_info_s;
327     prop->key = (winpt_key_t)lparam;
328     SetWindowLong (dlg, GWL_USERDATA, (LONG)prop);
329     on_init_dialog (dlg, wparam, lparam);
330 werner 36 return TRUE;
331    
332     case WM_DESTROY:
333 werner 47 remove (get_photo_tmpname (dlg));
334 twoaday 217 delete prop;prop=NULL;
335     SetWindowLong (dlg, GWL_USERDATA, 0);
336 werner 36 break;
337    
338     case WM_PAINT:
339 twoaday 217 if (prop->key->has_photo)
340 werner 36 keyprops_show_photo (dlg);
341     break;
342    
343     case WM_COMMAND:
344     switch (LOWORD (wparam)) {
345     case IDOK:
346     EndDialog (dlg, TRUE);
347     return TRUE;
348 twoaday 170
349     case IDCANCEL:
350     EndDialog (dlg, FALSE);
351     return TRUE;
352 werner 36
353     case IDC_KEYPROPS_OT_CHANGE:
354 twoaday 217 if (do_check_key (prop->key->ctx)) {
355 werner 36 msg_box (dlg, _("The status of this key is 'revoked' or 'expired'.\n"
356     "You cannot change the ownertrust of such keys."),
357     _("WinPT Warning"), MB_ERR);
358     return TRUE;
359     }
360 twoaday 217 if (!prop->key->key_pair && !key_is_valid (prop->key->ctx)) {
361 twoaday 150 rc = msg_box (dlg, _("This is a non-valid key.\n"
362 werner 36 "Modifying the ownertrust has no effect on such keys.\n\n"
363     "Do you really want to continue?"),
364 twoaday 150 _("WinPT Warning"), MB_ICONWARNING|MB_YESNO);
365 werner 36 if (rc == IDNO)
366     return TRUE;
367     }
368 twoaday 165 rc = dialog_box_param (glob_hinst,
369     (LPCSTR)IDD_WINPT_KEYEDIT_OWNERTRUST,
370     dlg, keyedit_ownertrust_dlg_proc,
371 twoaday 217 (LPARAM)prop->key, _("Change Ownertrust"),
372 twoaday 165 IDS_WINPT_KEYEDIT_OWNERTRUST);
373     if (rc == FALSE) /* Cancel */
374     return TRUE;
375 werner 36
376 twoaday 217 inf = ownertrust_to_string (prop->key->callback.new_val,
377     prop->key->key_pair);
378 werner 36 SetDlgItemText (dlg, IDC_KEYPROPS_OT, inf);
379     msg_box (dlg, _("Ownertrust successfully changed."),
380     _("GnuPG Status"), MB_OK);
381 twoaday 217 prop->key->update = 1;
382 werner 36 return TRUE;
383    
384     case IDC_KEYPROPS_CHANGE_PWD:
385 twoaday 217 keyedit_change_passwd (prop->key, dlg);
386 werner 36 return TRUE;
387    
388     case IDC_KEYPROPS_REVOKERS:
389 twoaday 217 prop->key->update = dialog_box_param (glob_hinst,
390     (LPCTSTR)IDD_WINPT_KEYREVOKERS, dlg,
391     key_revokers_dlg_proc, (LPARAM)prop->key,
392     _("Key Revokers"),
393     IDS_WINPT_KEY_REVOKERS);
394     UpdateWindow (dlg);
395 werner 36 break;
396     }
397     }
398    
399     return FALSE;
400     }

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