1 |
/* wptPassphraseCB.cpp - GPGME Passphrase Callback |
/* wptPassphraseCB.cpp - GPGME Passphrase Callback |
2 |
* Copyright (C) 2001, 2002, 2003 Timo Schulz |
* Copyright (C) 2001, 2002, 2003, 2005 Timo Schulz |
3 |
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* Copyright (C) 2005 g10 Code GmbH |
4 |
* |
* |
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* This file is part of WinPT. |
* This file is part of WinPT. |
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* |
* |
33 |
#include "wptUTF8.h" |
#include "wptUTF8.h" |
34 |
#include "wptErrors.h" |
#include "wptErrors.h" |
35 |
#include "wptTypes.h" |
#include "wptTypes.h" |
36 |
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#include "wptKeyList.h" |
37 |
#include "wptAgent.h" |
#include "wptAgent.h" |
38 |
#include "wptRegistry.h" |
#include "wptRegistry.h" |
39 |
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40 |
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const char* get_symkey_algo (int algo); |
41 |
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42 |
#define item_ctrl_id( cmd ) \ |
#define item_ctrl_id( cmd ) \ |
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((cmd) == GPG_CMD_DECRYPT? IDC_DECRYPT_PWD : IDC_DECRYPT_SIGN_PWD) |
((cmd) == GPG_CMD_DECRYPT? IDC_DECRYPT_PWD : IDC_DECRYPT_SIGN_PWD) |
44 |
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#define item_ctrl_id2(cmd) \ |
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((cmd) == GPG_CMD_DECRYPT? IDC_DECRYPT_HIDE : IDC_DECRYPT_SIGN_HIDE) |
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BOOL CALLBACK |
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passphrase_callback_proc( HWND dlg, UINT msg, WPARAM wparam, LPARAM lparam ) |
/* Overwrite passphrase and free memory. */ |
50 |
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static void |
51 |
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burn_passphrase (char **pwd) |
52 |
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{ |
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char *pass = *pwd; |
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wipememory (pass, strlen (pass)); |
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delete []pass; |
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*pwd = NULL; |
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} |
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/* Dialog procedure for the passphrase callback. */ |
61 |
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static BOOL CALLBACK |
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passphrase_callback_proc (HWND dlg, UINT msg, WPARAM wparam, LPARAM lparam) |
63 |
{ |
{ |
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static passphrase_cb_s * c; |
static passphrase_cb_s * c; |
65 |
static int yes = 1; |
gpgme_decrypt_result_t res; |
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gpgme_sign_result_t res_sig; |
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gpgme_key_t key; |
gpgme_key_t key; |
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const char * s, * id; |
void *ctx = NULL, *item; |
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char info[768] = {0}; |
const char *id; |
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void * ctx = NULL, * item; |
char *info; |
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unsigned int pkalgo; |
int n; |
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|
|
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switch( msg ) { |
switch (msg) { |
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case WM_INITDIALOG: |
case WM_INITDIALOG: |
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c = (passphrase_cb_s *)lparam; |
c = (passphrase_cb_s *)lparam; |
76 |
if( !c ) |
if (!c) |
77 |
BUG( NULL ); |
BUG (0); |
78 |
SetWindowText( dlg, c->title ); |
SetWindowText (dlg, c->title); |
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if( c->gpg_cmd == GPG_CMD_DECRYPT ) { |
if (c->gpg_cmd == GPG_CMD_DECRYPT) { |
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SetDlgItemText( dlg, IDC_DECRYPT_LISTINF, |
SetDlgItemText (dlg, IDC_DECRYPT_LISTINF, |
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_("Encrypted with the following public key(s)") ); |
_("Encrypted with the following public key(s)")); |
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CheckDlgButton( dlg, IDC_DECRYPT_HIDE, BST_CHECKED ); |
CheckDlgButton (dlg, IDC_DECRYPT_HIDE, BST_CHECKED); |
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} |
} |
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else if( c->gpg_cmd == GPG_CMD_SIGN ) |
else if (c->gpg_cmd == GPG_CMD_SIGN) |
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CheckDlgButton( dlg, IDC_DECRYPT_SIGN_HIDE, BST_CHECKED ); |
CheckDlgButton (dlg, IDC_DECRYPT_SIGN_HIDE, BST_CHECKED); |
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if( c->enc_to && c->gpg_cmd == GPG_CMD_DECRYPT ) { |
res = gpgme_op_decrypt_result (c->gpg); |
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gpgme_recipients_enum_open( c->enc_to, &ctx ); |
if (res != NULL && c->gpg_cmd == GPG_CMD_DECRYPT) { |
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while ( (s = gpgme_recipients_enum_read( c->enc_to, &ctx )) ) { |
gpgme_recipient_t r; |
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pkalgo = *s; s++; |
|
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get_pubkey( s, &key ); |
/* XXX: not all ENCRYPT_TO entries are listed here. */ |
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if( key ) { |
for (r = res->recipients; r; r = r->next) { |
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char * uid = NULL; |
get_pubkey (r->keyid, &key); |
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id = gpgme_key_get_string_attr( key, GPGME_ATTR_USERID, NULL, 0 ); |
if (key) { |
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if( !id ) |
char *uid; |
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id = key->uids->name; |
96 |
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if (!id) |
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id = _("Invalid User ID"); |
id = _("Invalid User ID"); |
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uid = utf8_to_wincp (id, strlen (id)); |
uid = utf8_to_wincp (id, strlen (id)); |
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_snprintf( info, sizeof info - 1, "%s (%s, 0x%s)", uid, |
info = new char [32+strlen (uid)+1 + 4 + strlen (r->keyid)+1 |
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gpgme_key_expand_attr( GPGME_ATTR_ALGO, pkalgo ), s+8 ); |
+ strlen (key->uids->email)+1]; |
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free( uid ); |
if (!info) |
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BUG (NULL); |
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sprintf (info, "%s <%s> (%s, 0x%s)", uid, key->uids->email, |
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get_key_pubalgo (r->pubkey_algo), r->keyid+8); |
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free (uid); |
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|
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} |
} |
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else |
else { |
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_snprintf( info, sizeof info - 1, _("Unknown (key ID 0x%s)"), |
info = new char [32 + strlen (r->keyid)+1 + 4]; |
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s? s + 8 : "DEADBEEF" ); |
if (!info) |
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listbox_add_string( GetDlgItem( dlg, IDC_DECRYPT_LIST ), info ); |
BUG (NULL); |
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sprintf (info, _("Unknown key ID (%s, 0x%s)"), |
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get_key_pubalgo (r->pubkey_algo), r->keyid+8); |
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} |
115 |
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listbox_add_string (GetDlgItem (dlg, IDC_DECRYPT_LIST), info); |
116 |
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free_if_alloc (info); |
117 |
} |
} |
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gpgme_recipients_enum_close( c->enc_to, &ctx ); |
|
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} |
} |
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SetDlgItemText( dlg, c->gpg_cmd == GPG_CMD_DECRYPT? |
else if (c->gpg_cmd == GPG_CMD_DECRYPT) |
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EnableWindow (GetDlgItem (dlg, IDC_DECRYPT_LIST), FALSE); |
121 |
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SetDlgItemText (dlg, c->gpg_cmd == GPG_CMD_DECRYPT? |
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IDC_DECRYPT_PWDINFO : IDC_DECRYPT_SIGN_PWDINFO, |
IDC_DECRYPT_PWDINFO : IDC_DECRYPT_SIGN_PWDINFO, |
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_("Please enter your passphrase") ); |
c->bad_pwd? _("Bad passphrase; Enter passphrase again") : |
124 |
if( c->gpg_cmd == GPG_CMD_DECRYPT ) { |
_("Please enter your passphrase")); |
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SetFocus( GetDlgItem( dlg, IDC_DECRYPT_PWD ) ); |
if (c->gpg_cmd == GPG_CMD_DECRYPT) { |
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SetDlgItemText( dlg, IDC_DECRYPT_MSG, c->info ); |
SetFocus (GetDlgItem (dlg, IDC_DECRYPT_PWD)); |
127 |
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if (res && !res->recipients) { |
128 |
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const char *s = _("Symmetric encryption.\n" |
129 |
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"%s encrypted data."); |
130 |
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const char *alg = get_symkey_algo (c->sym.sym_algo); |
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info = new char[strlen (s) + strlen (alg) + 2]; |
132 |
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if (!info) |
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BUG (NULL); |
134 |
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sprintf (info, s, alg); |
135 |
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SetDlgItemText (dlg, IDC_DECRYPT_MSG, info); |
136 |
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free_if_alloc (info); |
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} |
138 |
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else |
139 |
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SetDlgItemText (dlg, IDC_DECRYPT_MSG, c->info); |
140 |
} |
} |
141 |
else { |
else { |
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SetFocus( GetDlgItem( dlg, IDC_DECRYPT_SIGN_PWD ) ); |
SetFocus( GetDlgItem (dlg, IDC_DECRYPT_SIGN_PWD)); |
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SetDlgItemText( dlg, IDC_DECRYPT_SIGN_MSG, c->info ); |
SetDlgItemText (dlg, IDC_DECRYPT_SIGN_MSG, c->info); |
144 |
} |
} |
145 |
center_window( dlg ); |
center_window (dlg, NULL); |
146 |
SetForegroundWindow( dlg ); |
SetForegroundWindow (dlg); |
147 |
set_active_window( dlg ); |
set_active_window (dlg); |
148 |
return FALSE; |
return FALSE; |
149 |
|
|
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case WM_SYSCOMMAND: |
case WM_SYSCOMMAND: |
151 |
if( LOWORD( wparam ) == SC_CLOSE ) { |
if (LOWORD (wparam) == SC_CLOSE) { |
152 |
SetDlgItemText( dlg, item_ctrl_id( c->gpg_cmd ), "" ); |
SetDlgItemText (dlg, item_ctrl_id (c->gpg_cmd), ""); |
153 |
c->cancel = 1; |
c->cancel = 1; |
154 |
EndDialog( dlg, TRUE ); |
EndDialog (dlg, TRUE); |
155 |
} |
} |
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return FALSE; |
break; |
157 |
|
|
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case WM_COMMAND: |
case WM_COMMAND: |
159 |
switch( HIWORD( wparam ) ) { |
switch (HIWORD (wparam)) { |
160 |
case BN_CLICKED: |
case BN_CLICKED: |
161 |
if ( LOWORD( wparam ) == IDC_DECRYPT_HIDE |
if (LOWORD (wparam) == IDC_DECRYPT_HIDE |
162 |
|| LOWORD( wparam ) == IDC_DECRYPT_SIGN_HIDE ) { |
|| LOWORD (wparam) == IDC_DECRYPT_SIGN_HIDE) { |
163 |
HWND hwnd; |
HWND hwnd; |
164 |
yes ^= 1; |
int hide = IsDlgButtonChecked (dlg, item_ctrl_id2 (c->gpg_cmd)); |
165 |
hwnd = GetDlgItem( dlg, item_ctrl_id( c->gpg_cmd ) ); |
hwnd = GetDlgItem (dlg, item_ctrl_id (c->gpg_cmd)); |
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SendMessage( hwnd, EM_SETPASSWORDCHAR, yes? '*' : 0, 0 ); |
SendMessage (hwnd, EM_SETPASSWORDCHAR, hide? '*' : 0, 0); |
167 |
SetFocus( hwnd ); |
SetFocus (hwnd); |
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} |
} |
169 |
} |
} |
170 |
|
|
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switch( LOWORD( wparam ) ) { |
switch (LOWORD (wparam)) { |
172 |
case IDOK: |
case IDOK: |
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/* fixme: the item is even cached when the passphrase is not |
/* XXX: the item is even cached when the passphrase is not |
174 |
correct, which means that the user needs to delete all |
correct, which means that the user needs to delete all |
175 |
cached entries to continue. */ |
cached entries to continue. */ |
176 |
GetDlgItemText( dlg, item_ctrl_id( c->gpg_cmd ), c->pwd, sizeof c->pwd -1 ); |
if (c->pwd) |
177 |
if( reg_prefs.cache_time > 0 && !c->is_card ) { |
burn_passphrase (&c->pwd); |
178 |
if( agent_get_cache( c->keyid, &item ) ) |
n = item_get_text_length (dlg, item_ctrl_id (c->gpg_cmd)); |
179 |
agent_unlock_cache_entry( &item ); |
if (!n) { |
180 |
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c->pwd = new char[2]; |
181 |
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if (!c->pwd) |
182 |
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BUG (NULL); |
183 |
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strcpy (c->pwd, ""); |
184 |
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} |
185 |
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else { |
186 |
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c->pwd = new char[n+2]; |
187 |
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if (!c->pwd) |
188 |
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BUG (NULL); |
189 |
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GetDlgItemText (dlg, item_ctrl_id (c->gpg_cmd), c->pwd, n+1); |
190 |
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} |
191 |
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res = gpgme_op_decrypt_result (c->gpg); |
192 |
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if (!res) |
193 |
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res_sig = gpgme_op_sign_result (c->gpg); |
194 |
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if (reg_prefs.cache_time > 0 && !c->is_card && |
195 |
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((res && res->recipients) || (res_sig && res_sig->signatures))) { |
196 |
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if (agent_get_cache (c->keyid, &item)) |
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agent_unlock_cache_entry (&item); |
198 |
else |
else |
199 |
agent_put_cache( c->keyid, c->pwd, reg_prefs.cache_time ); |
agent_put_cache (c->keyid, c->pwd, reg_prefs.cache_time); |
200 |
} |
} |
201 |
EndDialog( dlg, TRUE ); |
c->cancel = 0; |
202 |
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EndDialog (dlg, TRUE); |
203 |
return TRUE; |
return TRUE; |
204 |
|
|
205 |
case IDCANCEL: |
case IDCANCEL: |
206 |
SetDlgItemText( dlg, item_ctrl_id( c->gpg_cmd ), "" ); |
SetDlgItemText (dlg, item_ctrl_id (c->gpg_cmd), ""); |
207 |
c->cancel = 1; |
c->cancel = 1; |
208 |
EndDialog( dlg, FALSE ); |
EndDialog (dlg, FALSE); |
209 |
return FALSE; |
return FALSE; |
210 |
} |
} |
211 |
break; |
break; |
212 |
} |
} |
213 |
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|
214 |
return FALSE; |
return FALSE; |
215 |
} /* passphrase_callback_proc */ |
} |
216 |
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217 |
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218 |
static const char * |
/* Extract the main keyid from @pass_info. |
219 |
parse_gpg_keyid( const char * desc ) |
Return value: long main keyid or NULL for an error. */ |
220 |
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static const char* |
221 |
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parse_gpg_keyid (const char *pass_info) |
222 |
{ |
{ |
223 |
static char keyid[16+1]; |
static char keyid[16+1]; |
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char * p; |
|
224 |
|
|
225 |
p = strrchr( desc, '\n' ); |
/* XXX: check for leading alpha-chars? */ |
226 |
if( !p ) |
if (strlen (pass_info) < 16) |
227 |
return NULL; |
return NULL; |
228 |
/* the format of the desc buffer looks like this: |
/* the format of the desc buffer looks like this: |
229 |
request_keyid[16] main_keyid[16] keytype[1] keylength[4] |
request_keyid[16] main_keyid[16] keytype[1] keylength[4] |
230 |
we use the main keyid to use only one cache entry. */ |
we use the main keyid to use only one cache entry. */ |
231 |
strncpy( keyid, desc+(p-desc+1+17), 16 ); |
strncpy (keyid, pass_info+17, 16); |
232 |
|
keyid[16] = 0; |
233 |
return keyid; |
return keyid; |
234 |
} /* parse_gpg_keyid */ |
} |
235 |
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236 |
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|
237 |
static void |
/* Parse the information in @uid_hint and @pass_info to generate |
238 |
parse_gpg_description( char * desc, int size ) |
a input message for the user in @desc. */ |
239 |
|
static int |
240 |
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parse_gpg_description (const char *uid_hint, const char *pass_info, |
241 |
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char *desc, int size) |
242 |
{ |
{ |
243 |
char * buffer = NULL, ch, uid[128] = {0}, * uid2 = NULL; |
gpgme_pubkey_algo_t algo; |
244 |
char usedkey[16+1] = {0}, mainkey[16+1] = {0}; |
char usedkey[16+1]; |
245 |
const char * buf; |
char mainkey[16+1]; |
246 |
int i, algo, try_again = 0; |
char *uid, *p; |
247 |
|
int n=0; |
248 |
if( stristr( desc, "[User ID hint missing]" ) |
|
249 |
|| stristr( desc, "[passphrase info missing]" ) ) { |
/* Each uid_hint contains a long key-ID so it is at least 16 bytes. */ |
250 |
_snprintf( desc, size-1, |
if (strlen (uid_hint) < 17) { |
251 |
_("You need a passphrase to unlock the secret key for\n" |
*desc = 0; |
252 |
"user: [UserID hint missing]\n" |
return -1; |
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" [passphrase info missing]\n") ); |
|
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return; |
|
253 |
} |
} |
254 |
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|
255 |
buffer = new char[size+1]; |
while (p = strsep ((char**)&pass_info, " ")) { |
256 |
if( !buffer ) |
switch (n++) { |
257 |
BUG( NULL ); |
case 0: strncpy (mainkey, p, 16); mainkey[16] = 0; break; |
258 |
strcpy( buffer, desc ); |
case 1: strncpy (usedkey, p, 16); usedkey[16] = 0; break; |
259 |
buf = buffer; |
case 2: algo = (gpgme_pubkey_algo_t)atol (p); break; |
|
if( strstr( buf, "TRY_AGAIN" ) ) { |
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buf += strlen( "TRY_AGAIN\n" ); |
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try_again = 1; |
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} |
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else if( strstr( buf, "ENTER_PASSPHRASE" ) ) |
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buf += strlen( "ENTER_PASSPHRASE\n" ); |
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else |
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BUG( NULL ); |
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buf += 17; |
|
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for( i = 0; i < sizeof uid-1; i++ ) { |
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ch = *buf++; |
|
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if( ch == '\n' ) { |
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uid[i] = '\0'; |
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break; |
|
260 |
} |
} |
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uid[i] = ch; |
|
261 |
} |
} |
262 |
memcpy( usedkey, buf, 16 ); |
uid_hint += 16; /* skip keyid */ |
263 |
usedkey[16] = '\0'; |
uid_hint += 1; /* space */ |
|
buf += 17; |
|
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memcpy( mainkey, buf, 16 ); |
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mainkey[16] = '\0'; |
|
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buf += 17; |
|
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if( !buf ) |
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BUG( NULL ); |
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algo = atol( buf ); |
|
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free_if_alloc( buffer ); |
|
264 |
|
|
265 |
uid2 = utf8_to_wincp (uid, strlen (uid)); |
uid = utf8_to_wincp (uid_hint, strlen (uid_hint)); |
266 |
|
|
267 |
if( strcmp( usedkey, mainkey ) ) |
if (strcmp (usedkey, mainkey)) |
268 |
_snprintf( desc, size-1, |
_snprintf (desc, size-1, |
269 |
_("You need a passphrase to unlock the secret key for\n" |
_("You need a passphrase to unlock the secret key for\n" |
270 |
"user: \"%s\"\n" |
"user: \"%s\"\n" |
271 |
"%s key, ID %s (main key ID %s)\n"), |
"%s key, ID %s (main key ID %s)\n"), |
272 |
uid2, gpgme_key_expand_attr( GPGME_ATTR_ALGO, algo ), |
uid, get_key_pubalgo (algo), usedkey+8, mainkey+8); |
273 |
usedkey+8, mainkey+8 ); |
else if (!strcmp (usedkey, mainkey)) |
274 |
else if( !strcmp( usedkey, mainkey ) ) |
_snprintf (desc, size-1, |
|
_snprintf( desc, size-1, |
|
275 |
_("You need a passphrase to unlock the secret key for\n" |
_("You need a passphrase to unlock the secret key for\n" |
276 |
"user: \"%s\"\n" |
"user: \"%s\"\n" |
277 |
"%s key, ID %s\n"), |
"%s key, ID %s\n"), |
278 |
uid2, gpgme_key_expand_attr( GPGME_ATTR_ALGO, algo ), |
uid, get_key_pubalgo (algo), usedkey+8); |
279 |
usedkey+8 ); |
free (uid); |
280 |
free( uid2 ); |
return 0; |
281 |
} /* parse_gpg_describtion */ |
} |
282 |
|
|
283 |
|
|
284 |
static int inline |
/* Extract the serial number from the card ID @id and return it. */ |
285 |
is_hexstring( const char * p ) |
const char* |
286 |
|
extract_serial_no (const char *id) |
287 |
{ |
{ |
288 |
size_t i; |
static char buf[8]; |
289 |
for( i=0; i < strlen( p ); i++ ) { |
char *p; |
290 |
if( !isxdigit( p[i] ) ) |
|
291 |
return -1; |
p = strchr (id, '/'); |
292 |
} |
if (!p) |
293 |
return 0; |
return NULL; |
294 |
|
strncpy (buf, id+(p-id)-6, 6); |
295 |
|
return buf; |
296 |
} |
} |
297 |
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|
298 |
|
|
299 |
const char * |
/* Passphrase callback with the ability to support caching. */ |
300 |
passphrase_cb( void * opaque, const char * desc, void * r_hd ) |
gpgme_error_t |
301 |
{ |
passphrase_cb (void *hook, const char *uid_hint, |
302 |
passphrase_cb_s * c = (passphrase_cb_s *)opaque; |
const char *passphrase_info, |
303 |
void * item; |
int prev_was_bad, int fd) |
304 |
const char * pass, * keyid; |
{ |
305 |
int rc = 0; |
passphrase_cb_s *c = (passphrase_cb_s*)hook; |
306 |
|
HANDLE hd = (HANDLE)fd; |
307 |
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void *item; |
308 |
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const char *keyid, *pass; |
309 |
|
DWORD n; |
310 |
|
int rc; |
311 |
|
|
312 |
|
if (!c) |
313 |
|
return gpg_error (GPG_ERR_INV_ARG); |
314 |
|
c->bad_pwd = prev_was_bad? 1 : 0; |
315 |
|
if (prev_was_bad && !c->cancel) { |
316 |
|
if (c->pwd) |
317 |
|
burn_passphrase (&c->pwd); |
318 |
|
agent_del_cache (c->keyid); |
319 |
|
c->pwd_init = 1; |
320 |
|
} |
321 |
|
|
322 |
if( !c ) |
if (passphrase_info) { |
323 |
return NULL; |
if (strlen (passphrase_info) < 16 && |
324 |
|
!strstr (passphrase_info, "OPENPGP")) { |
325 |
|
/* assume symetric encryption. */ |
326 |
|
int n=2; |
327 |
|
c->sym.sym_algo = atoi (passphrase_info); |
328 |
|
if (c->sym.sym_algo > 9) |
329 |
|
n++; |
330 |
|
/* XXX: be more strict. */ |
331 |
|
c->sym.s2k_mode = atoi (passphrase_info+n); |
332 |
|
c->sym.s2k_hash = atoi (passphrase_info+n+2); |
333 |
|
} |
334 |
|
|
335 |
if( desc ) { |
keyid = parse_gpg_keyid (passphrase_info); |
336 |
keyid = parse_gpg_keyid( desc ); |
pass = agent_get_cache (keyid+8, &item); |
337 |
pass = agent_get_cache( keyid, &item ); |
if (pass) { |
338 |
if( pass ) { |
agent_unlock_cache_entry (&item); |
|
agent_unlock_cache_entry( &item ); |
|
339 |
c->pwd_init = 0; |
c->pwd_init = 0; |
340 |
return pass; |
if (!WriteFile (hd, pass, strlen (pass), &n, NULL)) |
341 |
|
log_debug ("passphrase_cb: WriteFile() failed ec=%d\n", w32_errno); |
342 |
|
if (!WriteFile (hd, "\n", 1, &n, NULL)) |
343 |
|
log_debug ("passphrase_cb: WriteFile() failed ec=%d\n", w32_errno); |
344 |
|
return 0; |
345 |
} |
} |
346 |
} |
} |
347 |
|
|
348 |
if( c->pwd_init ) { |
if (c->pwd_init) { |
349 |
c->keyid = keyid; |
if (keyid && strlen (keyid) == 16) |
350 |
/* if the desc has a length of 32 and only hex digits, we assume a |
strcpy (c->keyid, keyid+8); |
351 |
smart card has been used. */ |
|
352 |
/*log_box( "", 0, "%s %d %d", desc,strlen( desc), is_hexstring( desc ) );*/ |
/* if @passphrase_info contains 'OPENPGP' we assume a smart card |
353 |
if( desc && strlen( desc ) == 32 && !is_hexstring( desc ) ) { |
has been used. */ |
354 |
char buf[16]; |
if (strstr (passphrase_info, "OPENPGP")) { |
355 |
memset( buf, 0, sizeof buf ); |
const char *s=passphrase_info; |
356 |
strncpy( buf, desc+20, 8 ); |
while (s && *s && *s != 'D') |
357 |
_snprintf( c->info, sizeof c->info-1, |
s++; |
358 |
_("Please enter the PIN to unlock your secret card key\n" |
_snprintf (c->info, sizeof c->info-1, |
359 |
"Card: %s"), buf ); |
_("Please enter the PIN to unlock your secret card key\n" |
360 |
|
"Card: %s"), extract_serial_no (s)); |
361 |
c->is_card = 1; |
c->is_card = 1; |
362 |
} |
} |
363 |
else if( desc ) { |
else if (uid_hint) |
364 |
strcpy( c->info, desc ); |
parse_gpg_description (uid_hint, passphrase_info, |
365 |
parse_gpg_description( c->info, sizeof c->info - 1 ); |
c->info, sizeof c->info - 1); |
366 |
} |
if (c->gpg_cmd == GPG_CMD_DECRYPT) { |
367 |
if( c->gpg_cmd == GPG_CMD_DECRYPT ) { |
rc = DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_DECRYPT, |
368 |
rc = DialogBoxParam( glob_hinst, (LPCSTR)IDD_WINPT_DECRYPT, |
(HWND)c->hwnd, passphrase_callback_proc, |
369 |
(HWND)c->hwnd, passphrase_callback_proc, |
(LPARAM)c); |
370 |
(LPARAM)c ); |
} |
371 |
} |
else if (c->gpg_cmd == GPG_CMD_SIGN) { |
372 |
else if( c->gpg_cmd == GPG_CMD_SIGN ) { |
rc = DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_DECRYPT_SIGN, |
373 |
rc = DialogBoxParam( glob_hinst, (LPCSTR)IDD_WINPT_DECRYPT_SIGN, |
(HWND)c->hwnd, passphrase_callback_proc, |
374 |
(HWND)c->hwnd, passphrase_callback_proc, |
(LPARAM)c); |
375 |
(LPARAM)c ); |
} |
376 |
|
if (rc == -1) { |
377 |
|
if (!WriteFile (hd, "\n", 1, &n, NULL)) |
378 |
|
log_debug ("passphrase_cb: WriteFile() failed ec=%d\n", w32_errno); |
379 |
|
return 0; |
380 |
} |
} |
|
if( rc == -1 ) |
|
|
return NULL; |
|
381 |
c->pwd_init = 0; |
c->pwd_init = 0; |
382 |
} |
} |
383 |
|
if (c->cancel) { |
384 |
|
if (!WriteFile (hd, "\n", 1, &n, NULL)) |
385 |
|
log_debug ("passphrase_cb: WriteFile() failed ec=%d\n", w32_errno); |
386 |
|
return 0; |
387 |
|
} |
388 |
|
|
389 |
if( c->cancel ) |
WriteFile (hd, c->pwd, strlen (c->pwd), &n, NULL); |
390 |
return NULL; |
WriteFile (hd, "\n", 1, &n, NULL); |
391 |
|
return 0; |
392 |
|
} |
393 |
|
|
|
return c->pwd; |
|
|
} /* passphrase_cb */ |
|
394 |
|
|
395 |
|
/* Initialize the given passphrase callback @cb with the |
396 |
|
used gpgme context @ctx, the command @cmd and a title |
397 |
|
@title for the dialog. */ |
398 |
|
void |
399 |
|
set_gpg_passphrase_cb (passphrase_cb_s *cb, gpgme_ctx_t ctx, |
400 |
|
int cmd, HWND hwnd, const char *title) |
401 |
|
{ |
402 |
|
memset (cb, 0, sizeof *cb); |
403 |
|
cb->gpg_cmd = cmd; |
404 |
|
cb->bad_pwd = 0; |
405 |
|
cb->is_card = 0; |
406 |
|
cb->cancel = 0; |
407 |
|
cb->hwnd = hwnd; |
408 |
|
cb->pwd_init = 1; |
409 |
|
free_if_alloc (cb->title); |
410 |
|
cb->title = m_strdup (title); |
411 |
|
if (!cb->title) |
412 |
|
BUG (NULL); |
413 |
|
gpgme_set_passphrase_cb (ctx, passphrase_cb, cb); |
414 |
|
cb->gpg = ctx; |
415 |
|
} |
416 |
|
|
417 |
|
|
418 |
|
/* Release a passphrase callback @ctx. */ |
419 |
void |
void |
420 |
set_gpg_passphrase_cb( gpgme_ctx_t c, passphrase_cb_s * ctx, int cmd, |
release_gpg_passphrase_cb (passphrase_cb_s *ctx) |
421 |
HWND hwnd, const char * title ) |
{ |
422 |
|
if (!ctx) |
423 |
|
return; |
424 |
|
sfree_if_alloc (ctx->pwd); |
425 |
|
free_if_alloc (ctx->title); |
426 |
|
} |
427 |
|
|
428 |
|
|
429 |
|
/* Simple check to measure passphrase (@pass) quality. |
430 |
|
Return value: 0 on success. */ |
431 |
|
int |
432 |
|
check_passwd_quality (const char *pass, int strict) |
433 |
{ |
{ |
434 |
ctx->gpg_cmd = cmd; |
int i, nd=0, nc=0, n; |
435 |
ctx->is_card = 0; |
|
436 |
ctx->cancel = 0; |
n = strlen (pass); |
437 |
ctx->hwnd = hwnd; |
if (n < 8) |
438 |
ctx->pwd_init = 1; |
return -1; |
439 |
if( strlen( title ) > 256 ) |
|
440 |
BUG( NULL ); /* check bounds */ |
for (i=0; i < n; i++) { |
441 |
strcpy( ctx->title, title ); |
if (isdigit (pass[i])) |
442 |
gpgme_set_passphrase_cb( c, passphrase_cb, ctx ); |
nd++; |
443 |
} /* set_gpg_passphrase_cb */ |
if (isalpha (pass[i])) |
444 |
|
nc++; |
445 |
|
} |
446 |
|
|
447 |
|
/* check that the passphrase contains letters and numbers. */ |
448 |
|
if (nd == n || nc == n) |
449 |
|
return -1; |
450 |
|
|
451 |
|
return 0; |
452 |
|
} |