1 |
/* wptPassphraseCB.cpp - GPGME Passphrase Callback |
/* wptPassphraseCB.cpp - GPGME Passphrase Callback |
2 |
* Copyright (C) 2001, 2002, 2003, 2005 Timo Schulz |
* Copyright (C) 2001, 2002, 2003, 2005 Timo Schulz |
3 |
* Copyright (C) 2005 g10 Code GmbH |
* Copyright (C) 2005 g10 Code GmbH |
4 |
* |
* |
5 |
* This file is part of WinPT. |
* This file is part of WinPT. |
6 |
* |
* |
7 |
* WinPT is free software; you can redistribute it and/or |
* WinPT is free software; you can redistribute it and/or |
8 |
* modify it under the terms of the GNU General Public License |
* modify it under the terms of the GNU General Public License |
9 |
* as published by the Free Software Foundation; either version 2 |
* as published by the Free Software Foundation; either version 2 |
10 |
* of the License, or (at your option) any later version. |
* of the License, or (at your option) any later version. |
11 |
* |
* |
12 |
* WinPT is distributed in the hope that it will be useful, |
* WinPT is distributed in the hope that it will be useful, |
13 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
15 |
* General Public License for more details. |
* General Public License for more details. |
16 |
* |
* |
17 |
* You should have received a copy of the GNU General Public License |
* You should have received a copy of the GNU General Public License |
18 |
* along with WinPT; if not, write to the Free Software Foundation, |
* along with WinPT; if not, write to the Free Software Foundation, |
19 |
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
20 |
*/ |
*/ |
21 |
|
|
22 |
#include <windows.h> |
#ifdef HAVE_CONFIG_H |
23 |
#include <ctype.h> |
#include <config.h> |
24 |
|
#endif |
25 |
#include "../resource.h" |
|
26 |
#include "wptNLS.h" |
#include <windows.h> |
27 |
#include "wptW32API.h" |
#include <windows.h> |
28 |
#include "wptVersion.h" |
#include <ctype.h> |
29 |
#include "wptGPG.h" |
|
30 |
#include "wptCommonCtl.h" |
#include "../resource.h" |
31 |
#include "wptContext.h" |
#include "wptNLS.h" |
32 |
#include "wptDlgs.h" |
#include "wptW32API.h" |
33 |
#include "wptUTF8.h" |
#include "wptVersion.h" |
34 |
#include "wptErrors.h" |
#include "wptGPG.h" |
35 |
#include "wptTypes.h" |
#include "wptCommonCtl.h" |
36 |
#include "wptKeyList.h" |
#include "wptContext.h" |
37 |
#include "wptAgent.h" |
#include "wptDlgs.h" |
38 |
#include "wptRegistry.h" |
#include "wptUTF8.h" |
39 |
|
#include "wptErrors.h" |
40 |
const char* get_symkey_algo (int algo); |
#include "wptTypes.h" |
41 |
|
#include "wptKeyList.h" |
42 |
#define item_ctrl_id( cmd ) \ |
#include "wptAgent.h" |
43 |
((cmd) == GPG_CMD_DECRYPT? IDC_DECRYPT_PWD : IDC_DECRYPT_SIGN_PWD) |
#include "wptRegistry.h" |
44 |
|
|
45 |
#define item_ctrl_id2(cmd) \ |
const char* get_symkey_algo (int algo); |
46 |
((cmd) == GPG_CMD_DECRYPT? IDC_DECRYPT_HIDE : IDC_DECRYPT_SIGN_HIDE) |
|
47 |
|
#define item_ctrl_id( cmd ) \ |
48 |
|
((cmd) == GPG_CMD_DECRYPT? IDC_DECRYPT_PWD : IDC_DECRYPT_SIGN_PWD) |
49 |
/* Overwrite passphrase and free memory. */ |
|
50 |
static void |
#define item_ctrl_id2(cmd) \ |
51 |
burn_passphrase (char **pwd) |
((cmd) == GPG_CMD_DECRYPT? IDC_DECRYPT_HIDE : IDC_DECRYPT_SIGN_HIDE) |
52 |
{ |
|
53 |
char *pass = *pwd; |
|
54 |
wipememory (pass, strlen (pass)); |
/* Overwrite passphrase and free memory. */ |
55 |
delete []pass; |
static void |
56 |
*pwd = NULL; |
burn_passphrase (char **pwd) |
57 |
} |
{ |
58 |
|
char *pass = *pwd; |
59 |
|
wipememory (pass, strlen (pass)); |
60 |
/* Dialog procedure for the passphrase callback. */ |
delete []pass; |
61 |
static BOOL CALLBACK |
*pwd = NULL; |
62 |
passphrase_callback_proc (HWND dlg, UINT msg, WPARAM wparam, LPARAM lparam) |
} |
63 |
{ |
|
64 |
static passphrase_cb_s * c; |
|
65 |
gpgme_decrypt_result_t res; |
/* Dialog procedure for the passphrase callback. */ |
66 |
gpgme_sign_result_t res_sig; |
static BOOL CALLBACK |
67 |
gpgme_key_t key; |
passphrase_callback_proc (HWND dlg, UINT msg, WPARAM wparam, LPARAM lparam) |
68 |
gpgme_recipient_t recip, r; |
{ |
69 |
void *ctx = NULL, *item; |
static passphrase_cb_s * c; |
70 |
const char *id; |
gpgme_decrypt_result_t res; |
71 |
char *info; |
gpgme_sign_result_t res_sig; |
72 |
int n; |
gpgme_key_t key; |
73 |
|
gpgme_recipient_t recip, r; |
74 |
switch (msg) { |
void *ctx = NULL, *item; |
75 |
case WM_INITDIALOG: |
const char *id; |
76 |
c = (passphrase_cb_s *)lparam; |
char *info; |
77 |
if (!c) |
int n; |
78 |
BUG (0); |
|
79 |
SetWindowText (dlg, c->title); |
switch (msg) { |
80 |
if (c->gpg_cmd == GPG_CMD_DECRYPT) { |
case WM_INITDIALOG: |
81 |
SetDlgItemText (dlg, IDC_DECRYPT_LISTINF, |
c = (passphrase_cb_s *)lparam; |
82 |
_("Encrypted with the following public key(s)")); |
if (!c) |
83 |
CheckDlgButton (dlg, IDC_DECRYPT_HIDE, BST_CHECKED); |
BUG (0); |
84 |
} |
SetWindowText (dlg, c->title); |
85 |
else if (c->gpg_cmd == GPG_CMD_SIGN) |
if (c->gpg_cmd == GPG_CMD_DECRYPT) { |
86 |
CheckDlgButton (dlg, IDC_DECRYPT_SIGN_HIDE, BST_CHECKED); |
SetDlgItemText (dlg, IDC_DECRYPT_LISTINF, |
87 |
if (c->recipients) |
_("Encrypted with the following public key(s)")); |
88 |
recip = c->recipients; /* recipients were already extracted. */ |
CheckDlgButton (dlg, IDC_DECRYPT_HIDE, BST_CHECKED); |
89 |
else { |
} |
90 |
/* XXX: not all ENCRYPT_TO entries are listed here. */ |
else if (c->gpg_cmd == GPG_CMD_SIGN) |
91 |
res = gpgme_op_decrypt_result (c->gpg); |
CheckDlgButton (dlg, IDC_DECRYPT_SIGN_HIDE, BST_CHECKED); |
92 |
if (res && res->recipients) |
if (c->recipients) |
93 |
recip = res->recipients; |
recip = c->recipients; /* recipients were already extracted. */ |
94 |
} |
else { |
95 |
if (recip != NULL && c->gpg_cmd == GPG_CMD_DECRYPT) { |
/* XXX: not all ENCRYPT_TO entries are listed here. */ |
96 |
for (r = res->recipients; r; r = r->next) { |
res = gpgme_op_decrypt_result (c->gpg); |
97 |
get_pubkey (r->keyid, &key); |
if (res && res->recipients) |
98 |
if (key) { |
recip = res->recipients; |
99 |
char *uid; |
} |
100 |
id = key->uids->name; |
if (recip != NULL && c->gpg_cmd == GPG_CMD_DECRYPT) { |
101 |
if (!id) |
for (r = res->recipients; r; r = r->next) { |
102 |
id = _("Invalid User ID"); |
get_pubkey (r->keyid, &key); |
103 |
uid = utf8_to_wincp (id, strlen (id)); |
if (key) { |
104 |
info = new char [32+strlen (uid)+1 + 4 + strlen (r->keyid)+1 |
char *uid; |
105 |
+ strlen (key->uids->email)+1]; |
id = key->uids->name; |
106 |
if (!info) |
if (!id) |
107 |
BUG (NULL); |
id = _("Invalid User ID"); |
108 |
sprintf (info, "%s <%s> (%s, 0x%s)", uid, key->uids->email, |
uid = utf8_to_wincp (id, strlen (id)); |
109 |
get_key_pubalgo (r->pubkey_algo), r->keyid+8); |
info = new char [32+strlen (uid)+1 + 4 + strlen (r->keyid)+1 |
110 |
free (uid); |
+ strlen (key->uids->email)+1]; |
111 |
|
if (!info) |
112 |
} |
BUG (NULL); |
113 |
else { |
sprintf (info, "%s <%s> (%s, 0x%s)", uid, key->uids->email, |
114 |
info = new char [32 + strlen (r->keyid)+1 + 4]; |
get_key_pubalgo (r->pubkey_algo), r->keyid+8); |
115 |
if (!info) |
free (uid); |
116 |
BUG (NULL); |
|
117 |
sprintf (info, _("Unknown key ID (%s, 0x%s)"), |
} |
118 |
get_key_pubalgo (r->pubkey_algo), r->keyid+8); |
else { |
119 |
} |
info = new char [32 + strlen (r->keyid)+1 + 4]; |
120 |
listbox_add_string (GetDlgItem (dlg, IDC_DECRYPT_LIST), info); |
if (!info) |
121 |
free_if_alloc (info); |
BUG (NULL); |
122 |
} |
sprintf (info, _("Unknown key ID (%s, 0x%s)"), |
123 |
} |
get_key_pubalgo (r->pubkey_algo), r->keyid+8); |
124 |
else if (c->gpg_cmd == GPG_CMD_DECRYPT) |
} |
125 |
EnableWindow (GetDlgItem (dlg, IDC_DECRYPT_LIST), FALSE); |
listbox_add_string (GetDlgItem (dlg, IDC_DECRYPT_LIST), info); |
126 |
SetDlgItemText (dlg, c->gpg_cmd == GPG_CMD_DECRYPT? |
free_if_alloc (info); |
127 |
IDC_DECRYPT_PWDINFO : IDC_DECRYPT_SIGN_PWDINFO, |
} |
128 |
c->bad_pwd? _("Bad passphrase; Enter passphrase again") : |
} |
129 |
_("Please enter your passphrase")); |
else if (c->gpg_cmd == GPG_CMD_DECRYPT) |
130 |
if (c->gpg_cmd == GPG_CMD_DECRYPT) { |
EnableWindow (GetDlgItem (dlg, IDC_DECRYPT_LIST), FALSE); |
131 |
SetFocus (GetDlgItem (dlg, IDC_DECRYPT_PWD)); |
SetDlgItemText (dlg, c->gpg_cmd == GPG_CMD_DECRYPT? |
132 |
if (res && !res->recipients) { |
IDC_DECRYPT_PWDINFO : IDC_DECRYPT_SIGN_PWDINFO, |
133 |
const char *s = _("Symmetric encryption.\n" |
c->bad_pwd? _("Bad passphrase; Enter passphrase again") : |
134 |
"%s encrypted data."); |
_("Please enter your passphrase")); |
135 |
const char *alg = get_symkey_algo (c->sym.sym_algo); |
if (c->gpg_cmd == GPG_CMD_DECRYPT) { |
136 |
info = new char[strlen (s) + strlen (alg) + 2]; |
SetFocus (GetDlgItem (dlg, IDC_DECRYPT_PWD)); |
137 |
if (!info) |
if (res && !res->recipients) { |
138 |
BUG (NULL); |
const char *s = _("Symmetric encryption.\n" |
139 |
sprintf (info, s, alg); |
"%s encrypted data."); |
140 |
SetDlgItemText (dlg, IDC_DECRYPT_MSG, info); |
const char *alg = get_symkey_algo (c->sym.sym_algo); |
141 |
free_if_alloc (info); |
info = new char[strlen (s) + strlen (alg) + 2]; |
142 |
} |
if (!info) |
143 |
else |
BUG (NULL); |
144 |
SetDlgItemText (dlg, IDC_DECRYPT_MSG, c->info); |
sprintf (info, s, alg); |
145 |
} |
SetDlgItemText (dlg, IDC_DECRYPT_MSG, info); |
146 |
else { |
free_if_alloc (info); |
147 |
SetFocus( GetDlgItem (dlg, IDC_DECRYPT_SIGN_PWD)); |
} |
148 |
SetDlgItemText (dlg, IDC_DECRYPT_SIGN_MSG, c->info); |
else |
149 |
} |
SetDlgItemText (dlg, IDC_DECRYPT_MSG, c->info); |
150 |
center_window (dlg, NULL); |
} |
151 |
SetForegroundWindow (dlg); |
else { |
152 |
set_active_window (dlg); |
SetFocus( GetDlgItem (dlg, IDC_DECRYPT_SIGN_PWD)); |
153 |
return FALSE; |
SetDlgItemText (dlg, IDC_DECRYPT_SIGN_MSG, c->info); |
154 |
|
} |
155 |
case WM_SYSCOMMAND: |
center_window (dlg, NULL); |
156 |
if (LOWORD (wparam) == SC_CLOSE) { |
SetForegroundWindow (dlg); |
157 |
SetDlgItemText (dlg, item_ctrl_id (c->gpg_cmd), ""); |
set_active_window (dlg); |
158 |
c->cancel = 1; |
return FALSE; |
159 |
EndDialog (dlg, TRUE); |
|
160 |
} |
case WM_SYSCOMMAND: |
161 |
break; |
if (LOWORD (wparam) == SC_CLOSE) { |
162 |
|
SetDlgItemText (dlg, item_ctrl_id (c->gpg_cmd), ""); |
163 |
case WM_COMMAND: |
c->cancel = 1; |
164 |
switch (HIWORD (wparam)) { |
EndDialog (dlg, TRUE); |
165 |
case BN_CLICKED: |
} |
166 |
if (LOWORD (wparam) == IDC_DECRYPT_HIDE |
break; |
167 |
|| LOWORD (wparam) == IDC_DECRYPT_SIGN_HIDE) { |
|
168 |
HWND hwnd; |
case WM_COMMAND: |
169 |
int hide = IsDlgButtonChecked (dlg, item_ctrl_id2 (c->gpg_cmd)); |
switch (HIWORD (wparam)) { |
170 |
hwnd = GetDlgItem (dlg, item_ctrl_id (c->gpg_cmd)); |
case BN_CLICKED: |
171 |
SendMessage (hwnd, EM_SETPASSWORDCHAR, hide? '*' : 0, 0); |
if (LOWORD (wparam) == IDC_DECRYPT_HIDE |
172 |
SetFocus (hwnd); |
|| LOWORD (wparam) == IDC_DECRYPT_SIGN_HIDE) { |
173 |
} |
HWND hwnd; |
174 |
} |
int hide = IsDlgButtonChecked (dlg, item_ctrl_id2 (c->gpg_cmd)); |
175 |
|
hwnd = GetDlgItem (dlg, item_ctrl_id (c->gpg_cmd)); |
176 |
switch (LOWORD (wparam)) { |
SendMessage (hwnd, EM_SETPASSWORDCHAR, hide? '*' : 0, 0); |
177 |
case IDOK: |
SetFocus (hwnd); |
178 |
/* XXX: the item is even cached when the passphrase is not |
} |
179 |
correct, which means that the user needs to delete all |
} |
180 |
cached entries to continue. */ |
|
181 |
if (c->pwd) |
switch (LOWORD (wparam)) { |
182 |
burn_passphrase (&c->pwd); |
case IDOK: |
183 |
n = item_get_text_length (dlg, item_ctrl_id (c->gpg_cmd)); |
/* XXX: the item is even cached when the passphrase is not |
184 |
if (!n) { |
correct, which means that the user needs to delete all |
185 |
c->pwd = new char[2]; |
cached entries to continue. */ |
186 |
if (!c->pwd) |
if (c->pwd) |
187 |
BUG (NULL); |
burn_passphrase (&c->pwd); |
188 |
strcpy (c->pwd, ""); |
n = item_get_text_length (dlg, item_ctrl_id (c->gpg_cmd)); |
189 |
} |
if (!n) { |
190 |
else { |
c->pwd = new char[2]; |
191 |
c->pwd = new char[n+2]; |
if (!c->pwd) |
192 |
if (!c->pwd) |
BUG (NULL); |
193 |
BUG (NULL); |
strcpy (c->pwd, ""); |
194 |
GetDlgItemText (dlg, item_ctrl_id (c->gpg_cmd), c->pwd, n+1); |
} |
195 |
} |
else { |
196 |
res = gpgme_op_decrypt_result (c->gpg); |
c->pwd = new char[n+2]; |
197 |
if (!res) |
if (!c->pwd) |
198 |
res_sig = gpgme_op_sign_result (c->gpg); |
BUG (NULL); |
199 |
if (reg_prefs.cache_time > 0 && !c->is_card && |
GetDlgItemText (dlg, item_ctrl_id (c->gpg_cmd), c->pwd, n+1); |
200 |
((res && res->recipients) || (res_sig && res_sig->signatures))) { |
} |
201 |
if (agent_get_cache (c->keyid, &item)) |
res = gpgme_op_decrypt_result (c->gpg); |
202 |
agent_unlock_cache_entry (&item); |
if (!res) |
203 |
else |
res_sig = gpgme_op_sign_result (c->gpg); |
204 |
agent_put_cache (c->keyid, c->pwd, reg_prefs.cache_time); |
if (reg_prefs.cache_time > 0 && !c->is_card && |
205 |
} |
((res && res->recipients) || (res_sig && res_sig->signatures))) { |
206 |
c->cancel = 0; |
if (agent_get_cache (c->keyid, &item)) |
207 |
EndDialog (dlg, TRUE); |
agent_unlock_cache_entry (&item); |
208 |
return TRUE; |
else |
209 |
|
agent_put_cache (c->keyid, c->pwd, reg_prefs.cache_time); |
210 |
case IDCANCEL: |
} |
211 |
SetDlgItemText (dlg, item_ctrl_id (c->gpg_cmd), ""); |
c->cancel = 0; |
212 |
c->cancel = 1; |
EndDialog (dlg, TRUE); |
213 |
EndDialog (dlg, FALSE); |
return TRUE; |
214 |
return FALSE; |
|
215 |
} |
case IDCANCEL: |
216 |
break; |
SetDlgItemText (dlg, item_ctrl_id (c->gpg_cmd), ""); |
217 |
} |
c->cancel = 1; |
218 |
|
EndDialog (dlg, FALSE); |
219 |
return FALSE; |
return FALSE; |
220 |
} |
} |
221 |
|
break; |
222 |
|
} |
223 |
/* Extract the main keyid from @pass_info. |
|
224 |
Return value: long main keyid or NULL for an error. */ |
return FALSE; |
225 |
static const char* |
} |
226 |
parse_gpg_keyid (const char *pass_info) |
|
227 |
{ |
|
228 |
static char keyid[16+1]; |
/* Extract the main keyid from @pass_info. |
229 |
|
Return value: long main keyid or NULL for an error. */ |
230 |
/* XXX: check for leading alpha-chars? */ |
static const char* |
231 |
if (strlen (pass_info) < 16) |
parse_gpg_keyid (const char *pass_info) |
232 |
return NULL; |
{ |
233 |
/* the format of the desc buffer looks like this: |
static char keyid[16+1]; |
234 |
request_keyid[16] main_keyid[16] keytype[1] keylength[4] |
|
235 |
we use the main keyid to use only one cache entry. */ |
/* XXX: check for leading alpha-chars? */ |
236 |
strncpy (keyid, pass_info+17, 16); |
if (strlen (pass_info) < 16) |
237 |
keyid[16] = 0; |
return NULL; |
238 |
return keyid; |
/* the format of the desc buffer looks like this: |
239 |
} |
request_keyid[16] main_keyid[16] keytype[1] keylength[4] |
240 |
|
we use the main keyid to use only one cache entry. */ |
241 |
|
strncpy (keyid, pass_info+17, 16); |
242 |
/* Parse the information in @uid_hint and @pass_info to generate |
keyid[16] = 0; |
243 |
a input message for the user in @desc. */ |
return keyid; |
244 |
static int |
} |
245 |
parse_gpg_description (const char *uid_hint, const char *pass_info, |
|
246 |
char *desc, int size) |
|
247 |
{ |
/* Parse the information in @uid_hint and @pass_info to generate |
248 |
gpgme_pubkey_algo_t algo; |
a input message for the user in @desc. */ |
249 |
char usedkey[16+1]; |
static int |
250 |
char mainkey[16+1]; |
parse_gpg_description (const char *uid_hint, const char *pass_info, |
251 |
char *uid, *p; |
char *desc, int size) |
252 |
int n=0; |
{ |
253 |
|
gpgme_pubkey_algo_t algo; |
254 |
/* Each uid_hint contains a long key-ID so it is at least 16 bytes. */ |
char usedkey[16+1]; |
255 |
if (strlen (uid_hint) < 17) { |
char mainkey[16+1]; |
256 |
*desc = 0; |
char *uid, *p; |
257 |
return -1; |
int n=0; |
258 |
} |
|
259 |
|
/* Each uid_hint contains a long key-ID so it is at least 16 bytes. */ |
260 |
while (p = strsep ((char**)&pass_info, " ")) { |
if (strlen (uid_hint) < 17) { |
261 |
switch (n++) { |
*desc = 0; |
262 |
case 0: strncpy (mainkey, p, 16); mainkey[16] = 0; break; |
return -1; |
263 |
case 1: strncpy (usedkey, p, 16); usedkey[16] = 0; break; |
} |
264 |
case 2: algo = (gpgme_pubkey_algo_t)atol (p); break; |
|
265 |
} |
while (p = strsep ((char**)&pass_info, " ")) { |
266 |
} |
switch (n++) { |
267 |
uid_hint += 16; /* skip keyid */ |
case 0: strncpy (mainkey, p, 16); mainkey[16] = 0; break; |
268 |
uid_hint += 1; /* space */ |
case 1: strncpy (usedkey, p, 16); usedkey[16] = 0; break; |
269 |
|
case 2: algo = (gpgme_pubkey_algo_t)atol (p); break; |
270 |
uid = utf8_to_wincp (uid_hint, strlen (uid_hint)); |
} |
271 |
|
} |
272 |
if (strcmp (usedkey, mainkey)) |
uid_hint += 16; /* skip keyid */ |
273 |
_snprintf (desc, size-1, |
uid_hint += 1; /* space */ |
274 |
_("You need a passphrase to unlock the secret key for\n" |
|
275 |
"user: \"%s\"\n" |
uid = utf8_to_wincp (uid_hint, strlen (uid_hint)); |
276 |
"%s key, ID %s (main key ID %s)\n"), |
|
277 |
uid, get_key_pubalgo (algo), usedkey+8, mainkey+8); |
if (strcmp (usedkey, mainkey)) |
278 |
else if (!strcmp (usedkey, mainkey)) |
_snprintf (desc, size-1, |
279 |
_snprintf (desc, size-1, |
_("You need a passphrase to unlock the secret key for\n" |
280 |
_("You need a passphrase to unlock the secret key for\n" |
"user: \"%s\"\n" |
281 |
"user: \"%s\"\n" |
"%s key, ID %s (main key ID %s)\n"), |
282 |
"%s key, ID %s\n"), |
uid, get_key_pubalgo (algo), usedkey+8, mainkey+8); |
283 |
uid, get_key_pubalgo (algo), usedkey+8); |
else if (!strcmp (usedkey, mainkey)) |
284 |
free (uid); |
_snprintf (desc, size-1, |
285 |
return 0; |
_("You need a passphrase to unlock the secret key for\n" |
286 |
} |
"user: \"%s\"\n" |
287 |
|
"%s key, ID %s\n"), |
288 |
|
uid, get_key_pubalgo (algo), usedkey+8); |
289 |
/* Extract the serial number from the card ID @id and return it. */ |
free (uid); |
290 |
const char* |
return 0; |
291 |
extract_serial_no (const char *id) |
} |
292 |
{ |
|
293 |
static char buf[8]; |
|
294 |
char *p; |
/* Extract the serial number from the card ID @id and return it. */ |
295 |
|
const char* |
296 |
p = strchr (id, '/'); |
extract_serial_no (const char *id) |
297 |
if (!p) |
{ |
298 |
return NULL; |
static char buf[8]; |
299 |
strncpy (buf, id+(p-id)-6, 6); |
char *p; |
300 |
return buf; |
|
301 |
} |
p = strchr (id, '/'); |
302 |
|
if (!p) |
303 |
|
return NULL; |
304 |
/* Passphrase callback with the ability to support caching. */ |
strncpy (buf, id+(p-id)-6, 6); |
305 |
gpgme_error_t |
return buf; |
306 |
passphrase_cb (void *hook, const char *uid_hint, |
} |
307 |
const char *passphrase_info, |
|
308 |
int prev_was_bad, int fd) |
|
309 |
{ |
/* Passphrase callback with the ability to support caching. */ |
310 |
passphrase_cb_s *c = (passphrase_cb_s*)hook; |
gpgme_error_t |
311 |
HANDLE hd = (HANDLE)fd; |
passphrase_cb (void *hook, const char *uid_hint, |
312 |
void *item; |
const char *passphrase_info, |
313 |
const char *keyid, *pass; |
int prev_was_bad, int fd) |
314 |
DWORD n; |
{ |
315 |
int rc; |
passphrase_cb_s *c = (passphrase_cb_s*)hook; |
316 |
|
HANDLE hd = (HANDLE)fd; |
317 |
if (!c) |
void *item; |
318 |
return gpg_error (GPG_ERR_INV_ARG); |
const char *keyid, *pass; |
319 |
c->bad_pwd = prev_was_bad? 1 : 0; |
DWORD n; |
320 |
if (prev_was_bad && !c->cancel) { |
int rc; |
321 |
if (c->pwd) |
|
322 |
burn_passphrase (&c->pwd); |
if (!c) |
323 |
agent_del_cache (c->keyid); |
return gpg_error (GPG_ERR_INV_ARG); |
324 |
c->pwd_init = 1; |
c->bad_pwd = prev_was_bad? 1 : 0; |
325 |
} |
if (prev_was_bad && !c->cancel) { |
326 |
|
if (c->pwd) |
327 |
if (passphrase_info) { |
burn_passphrase (&c->pwd); |
328 |
if (strlen (passphrase_info) < 16 && |
agent_del_cache (c->keyid); |
329 |
!strstr (passphrase_info, "OPENPGP")) { |
c->pwd_init = 1; |
330 |
/* assume symetric encryption. */ |
} |
331 |
int n=2; |
|
332 |
c->sym.sym_algo = atoi (passphrase_info); |
if (passphrase_info) { |
333 |
if (c->sym.sym_algo > 9) |
if (strlen (passphrase_info) < 16 && |
334 |
n++; |
!strstr (passphrase_info, "OPENPGP")) { |
335 |
/* XXX: be more strict. */ |
/* assume symetric encryption. */ |
336 |
c->sym.s2k_mode = atoi (passphrase_info+n); |
int n=2; |
337 |
c->sym.s2k_hash = atoi (passphrase_info+n+2); |
c->sym.sym_algo = atoi (passphrase_info); |
338 |
} |
if (c->sym.sym_algo > 9) |
339 |
|
n++; |
340 |
keyid = parse_gpg_keyid (passphrase_info); |
/* XXX: be more strict. */ |
341 |
pass = agent_get_cache (keyid+8, &item); |
c->sym.s2k_mode = atoi (passphrase_info+n); |
342 |
if (pass) { |
c->sym.s2k_hash = atoi (passphrase_info+n+2); |
343 |
agent_unlock_cache_entry (&item); |
} |
344 |
c->pwd_init = 0; |
|
345 |
if (!WriteFile (hd, pass, strlen (pass), &n, NULL)) |
keyid = parse_gpg_keyid (passphrase_info); |
346 |
log_debug ("passphrase_cb: WriteFile() failed ec=%d\n", w32_errno); |
pass = agent_get_cache (keyid+8, &item); |
347 |
if (!WriteFile (hd, "\n", 1, &n, NULL)) |
if (pass) { |
348 |
log_debug ("passphrase_cb: WriteFile() failed ec=%d\n", w32_errno); |
agent_unlock_cache_entry (&item); |
349 |
return 0; |
c->pwd_init = 0; |
350 |
} |
if (!WriteFile (hd, pass, strlen (pass), &n, NULL)) |
351 |
} |
log_debug ("passphrase_cb: WriteFile() failed ec=%d\n", w32_errno); |
352 |
|
if (!WriteFile (hd, "\n", 1, &n, NULL)) |
353 |
if (c->pwd_init) { |
log_debug ("passphrase_cb: WriteFile() failed ec=%d\n", w32_errno); |
354 |
if (keyid && strlen (keyid) == 16) |
return 0; |
355 |
strcpy (c->keyid, keyid+8); |
} |
356 |
|
} |
357 |
/* if @passphrase_info contains 'OPENPGP' we assume a smart card |
|
358 |
has been used. */ |
if (c->pwd_init) { |
359 |
if (strstr (passphrase_info, "OPENPGP")) { |
if (keyid && strlen (keyid) == 16) |
360 |
const char *s=passphrase_info; |
strcpy (c->keyid, keyid+8); |
361 |
while (s && *s && *s != 'D') |
|
362 |
s++; |
/* if @passphrase_info contains 'OPENPGP' we assume a smart card |
363 |
_snprintf (c->info, sizeof c->info-1, |
has been used. */ |
364 |
_("Please enter the PIN to unlock your secret card key\n" |
if (strstr (passphrase_info, "OPENPGP")) { |
365 |
"Card: %s"), extract_serial_no (s)); |
const char *s=passphrase_info; |
366 |
c->is_card = 1; |
while (s && *s && *s != 'D') |
367 |
} |
s++; |
368 |
else if (uid_hint) |
_snprintf (c->info, sizeof c->info-1, |
369 |
parse_gpg_description (uid_hint, passphrase_info, |
_("Please enter the PIN to unlock your secret card key\n" |
370 |
c->info, sizeof c->info - 1); |
"Card: %s"), extract_serial_no (s)); |
371 |
if (c->gpg_cmd == GPG_CMD_DECRYPT) { |
c->is_card = 1; |
372 |
rc = DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_DECRYPT, |
} |
373 |
(HWND)c->hwnd, passphrase_callback_proc, |
else if (uid_hint) |
374 |
(LPARAM)c); |
parse_gpg_description (uid_hint, passphrase_info, |
375 |
} |
c->info, sizeof c->info - 1); |
376 |
else if (c->gpg_cmd == GPG_CMD_SIGN) { |
if (c->gpg_cmd == GPG_CMD_DECRYPT) { |
377 |
rc = DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_DECRYPT_SIGN, |
rc = DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_DECRYPT, |
378 |
(HWND)c->hwnd, passphrase_callback_proc, |
(HWND)c->hwnd, passphrase_callback_proc, |
379 |
(LPARAM)c); |
(LPARAM)c); |
380 |
} |
} |
381 |
if (rc == -1) { |
else if (c->gpg_cmd == GPG_CMD_SIGN) { |
382 |
if (!WriteFile (hd, "\n", 1, &n, NULL)) |
rc = DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_DECRYPT_SIGN, |
383 |
log_debug ("passphrase_cb: WriteFile() failed ec=%d\n", w32_errno); |
(HWND)c->hwnd, passphrase_callback_proc, |
384 |
return 0; |
(LPARAM)c); |
385 |
} |
} |
386 |
c->pwd_init = 0; |
if (rc == -1) { |
387 |
} |
if (!WriteFile (hd, "\n", 1, &n, NULL)) |
388 |
if (c->cancel) { |
log_debug ("passphrase_cb: WriteFile() failed ec=%d\n", w32_errno); |
389 |
if (!WriteFile (hd, "\n", 1, &n, NULL)) |
return 0; |
390 |
log_debug ("passphrase_cb: WriteFile() failed ec=%d\n", w32_errno); |
} |
391 |
return 0; |
c->pwd_init = 0; |
392 |
} |
} |
393 |
|
if (c->cancel) { |
394 |
WriteFile (hd, c->pwd, strlen (c->pwd), &n, NULL); |
if (!WriteFile (hd, "\n", 1, &n, NULL)) |
395 |
WriteFile (hd, "\n", 1, &n, NULL); |
log_debug ("passphrase_cb: WriteFile() failed ec=%d\n", w32_errno); |
396 |
return 0; |
return 0; |
397 |
} |
} |
398 |
|
|
399 |
|
WriteFile (hd, c->pwd, strlen (c->pwd), &n, NULL); |
400 |
/* Initialize the given passphrase callback @cb with the |
WriteFile (hd, "\n", 1, &n, NULL); |
401 |
used gpgme context @ctx, the command @cmd and a title |
return 0; |
402 |
@title for the dialog. */ |
} |
403 |
void |
|
404 |
set_gpg_passphrase_cb (passphrase_cb_s *cb, gpgme_ctx_t ctx, |
|
405 |
int cmd, HWND hwnd, const char *title) |
/* Initialize the given passphrase callback @cb with the |
406 |
{ |
used gpgme context @ctx, the command @cmd and a title |
407 |
memset (cb, 0, sizeof *cb); |
@title for the dialog. */ |
408 |
cb->gpg_cmd = cmd; |
void |
409 |
cb->bad_pwd = 0; |
set_gpg_passphrase_cb (passphrase_cb_s *cb, gpgme_ctx_t ctx, |
410 |
cb->is_card = 0; |
int cmd, HWND hwnd, const char *title) |
411 |
cb->cancel = 0; |
{ |
412 |
cb->hwnd = hwnd; |
memset (cb, 0, sizeof *cb); |
413 |
cb->pwd_init = 1; |
cb->gpg_cmd = cmd; |
414 |
free_if_alloc (cb->title); |
cb->bad_pwd = 0; |
415 |
cb->title = m_strdup (title); |
cb->is_card = 0; |
416 |
if (!cb->title) |
cb->cancel = 0; |
417 |
BUG (NULL); |
cb->hwnd = hwnd; |
418 |
gpgme_set_passphrase_cb (ctx, passphrase_cb, cb); |
cb->pwd_init = 1; |
419 |
cb->gpg = ctx; |
free_if_alloc (cb->title); |
420 |
} |
cb->title = m_strdup (title); |
421 |
|
if (!cb->title) |
422 |
|
BUG (NULL); |
423 |
/* Release a passphrase callback @ctx. */ |
gpgme_set_passphrase_cb (ctx, passphrase_cb, cb); |
424 |
void |
cb->gpg = ctx; |
425 |
release_gpg_passphrase_cb (passphrase_cb_s *ctx) |
} |
426 |
{ |
|
427 |
gpgme_recipient_t r, n; |
|
428 |
|
/* Release a passphrase callback @ctx. */ |
429 |
if (!ctx) |
void |
430 |
return; |
release_gpg_passphrase_cb (passphrase_cb_s *ctx) |
431 |
sfree_if_alloc (ctx->pwd); |
{ |
432 |
free_if_alloc (ctx->title); |
gpgme_recipient_t r, n; |
433 |
r = ctx->recipients; |
|
434 |
while (r) { |
if (!ctx) |
435 |
n = r->next; |
return; |
436 |
safe_free (r->keyid); |
sfree_if_alloc (ctx->pwd); |
437 |
safe_free (r); |
free_if_alloc (ctx->title); |
438 |
r = n; |
r = ctx->recipients; |
439 |
} |
while (r) { |
440 |
} |
n = r->next; |
441 |
|
safe_free (r->keyid); |
442 |
|
safe_free (r); |
443 |
/* Simple check to measure passphrase (@pass) quality. |
r = n; |
444 |
Return value: 0 on success. */ |
} |
445 |
int |
} |
446 |
check_passwd_quality (const char *pass, int strict) |
|
447 |
{ |
|
448 |
int i, nd=0, nc=0, n; |
/* Simple check to measure passphrase (@pass) quality. |
449 |
|
Return value: 0 on success. */ |
450 |
n = strlen (pass); |
int |
451 |
if (n < 8) |
check_passwd_quality (const char *pass, int strict) |
452 |
return -1; |
{ |
453 |
|
int i, nd=0, nc=0, n; |
454 |
for (i=0; i < n; i++) { |
|
455 |
if (isdigit (pass[i])) |
n = strlen (pass); |
456 |
nd++; |
if (n < 8) |
457 |
if (isalpha (pass[i])) |
return -1; |
458 |
nc++; |
|
459 |
} |
for (i=0; i < n; i++) { |
460 |
|
if (isdigit (pass[i])) |
461 |
/* check that the passphrase contains letters and numbers. */ |
nd++; |
462 |
if (nd == n || nc == n) |
if (isalpha (pass[i])) |
463 |
return -1; |
nc++; |
464 |
|
} |
465 |
return 0; |
|
466 |
} |
/* check that the passphrase contains letters and numbers. */ |
467 |
|
if (nd == n || nc == n) |
468 |
|
return -1; |
469 |
|
|
470 |
|
return 0; |
471 |
|
} |