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/* wptPassphraseCB.cpp - GPGME Passphrase Callback |
/* wptPassphraseCB.cpp - GPGME Passphrase Callback |
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* Copyright (C) 2001, 2002, 2003, 2005 Timo Schulz |
* Copyright (C) 2001, 2002, 2003, 2005 Timo Schulz |
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* Copyright (C) 2005 g10 Code GmbH |
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* |
* |
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* This file is part of WinPT. |
* This file is part of WinPT. |
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* |
* |
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#include <windows.h> |
#include <windows.h> |
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#include <ctype.h> |
#include <ctype.h> |
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#include <io.h> |
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#include "../resource.h" |
#include "../resource.h" |
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#include "wptNLS.h" |
#include "wptNLS.h" |
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#include "wptAgent.h" |
#include "wptAgent.h" |
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#include "wptRegistry.h" |
#include "wptRegistry.h" |
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const char* get_symkey_algo (int algo); |
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#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) |
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passphrase_callback_proc (HWND dlg, UINT msg, WPARAM wparam, LPARAM lparam) |
passphrase_callback_proc (HWND dlg, UINT msg, WPARAM wparam, LPARAM lparam) |
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{ |
{ |
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static passphrase_cb_s * c; |
static passphrase_cb_s * c; |
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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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void *ctx = NULL, *item; |
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const char *id; |
const char *id; |
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char *info; |
char *info; |
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void *ctx = NULL, *item; |
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int n; |
int n; |
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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; |
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if (!c) |
if (!c) |
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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 (gpgme_op_decrypt_result (c->gpg) != NULL && |
res = gpgme_op_decrypt_result (c->gpg); |
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c->gpg_cmd == GPG_CMD_DECRYPT) { |
if (res != NULL && c->gpg_cmd == GPG_CMD_DECRYPT) { |
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gpgme_recipient_t r; |
gpgme_recipient_t r; |
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gpgme_decrypt_result_t res; |
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res = gpgme_op_decrypt_result (c->gpg); |
/* XXX: not all ENCRYPT_TO entries are listed here. */ |
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for (r = res->recipients; r; r = r->next) { |
for (r = res->recipients; r; r = r->next) { |
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get_pubkey (r->keyid, &key); |
get_pubkey (r->keyid, &key); |
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if (key) { |
if (key) { |
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char *uid; |
char *uid; |
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id = key->uids->uid; |
id = key->uids->name; |
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if (!id) |
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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info = new char [8+strlen (uid) + 4 + strlen (r->keyid) + 2]; |
info = new char [32+strlen (uid)+1 + 4 + strlen (r->keyid)+1 |
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+ strlen (key->uids->email)+1]; |
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if (!info) |
if (!info) |
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BUG (NULL); |
BUG (NULL); |
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sprintf (info, "%s (%s, 0x%s)", uid, |
sprintf (info, "%s <%s> (%s, 0x%s)", uid, key->uids->email, |
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get_key_pubalgo (r->pubkey_algo), r->keyid+8); |
get_key_pubalgo (r->pubkey_algo), r->keyid+8); |
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free (uid); |
free (uid); |
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free (info); |
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} |
} |
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else { |
else { |
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info = new char [32 + strlen (r->keyid) + 2]; |
info = new char [32 + strlen (r->keyid)+1 + 4]; |
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if (!info) |
if (!info) |
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BUG (NULL); |
BUG (NULL); |
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sprintf (info, _("Unknown (key ID 0x%s)"), |
sprintf (info, _("Unknown key ID (%s, 0x%s)"), |
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r->keyid? r->keyid+8 : "????????"); |
get_key_pubalgo (r->pubkey_algo), r->keyid+8); |
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free (info); |
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} |
} |
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listbox_add_string (GetDlgItem( dlg, IDC_DECRYPT_LIST ), info); |
listbox_add_string (GetDlgItem (dlg, IDC_DECRYPT_LIST), info); |
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free_if_alloc (info); |
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} |
} |
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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); |
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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") ); |
_("Please enter your passphrase")); |
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if( c->gpg_cmd == GPG_CMD_DECRYPT ) { |
if (c->gpg_cmd == GPG_CMD_DECRYPT) { |
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SetFocus( GetDlgItem( dlg, IDC_DECRYPT_PWD ) ); |
SetFocus (GetDlgItem (dlg, IDC_DECRYPT_PWD)); |
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SetDlgItemText( dlg, IDC_DECRYPT_MSG, c->info ); |
if (res && !res->recipients) { |
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const char *s = _("Symmetric encryption.\n" |
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"%s encrypted data."); |
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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]; |
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if (!info) |
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BUG (NULL); |
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sprintf (info, s, alg); |
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SetDlgItemText (dlg, IDC_DECRYPT_MSG, info); |
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free_if_alloc (info); |
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} |
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else |
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SetDlgItemText (dlg, IDC_DECRYPT_MSG, c->info); |
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} |
} |
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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); |
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} |
} |
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center_window( dlg, NULL ); |
center_window (dlg, NULL); |
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SetForegroundWindow( dlg ); |
SetForegroundWindow (dlg); |
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set_active_window( dlg ); |
set_active_window (dlg); |
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return FALSE; |
return FALSE; |
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case WM_SYSCOMMAND: |
case WM_SYSCOMMAND: |
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c->cancel = 1; |
c->cancel = 1; |
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EndDialog( dlg, TRUE ); |
EndDialog( dlg, TRUE ); |
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} |
} |
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return FALSE; |
break; |
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case WM_COMMAND: |
case WM_COMMAND: |
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switch( HIWORD( wparam ) ) { |
switch( HIWORD( wparam ) ) { |
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HWND hwnd; |
HWND hwnd; |
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int hide = IsDlgButtonChecked (dlg, item_ctrl_id2 (c->gpg_cmd)); |
int hide = IsDlgButtonChecked (dlg, item_ctrl_id2 (c->gpg_cmd)); |
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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, hide? '*' : 0, 0 ); |
SendMessage (hwnd, EM_SETPASSWORDCHAR, hide? '*' : 0, 0); |
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SetFocus (hwnd); |
SetFocus (hwnd); |
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} |
} |
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} |
} |
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strcpy (c->pwd, ""); |
strcpy (c->pwd, ""); |
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} |
} |
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else { |
else { |
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c->pwd = new char[n+1]; |
c->pwd = new char[n+2]; |
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if (!c->pwd) |
if (!c->pwd) |
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BUG (NULL); |
BUG (NULL); |
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GetDlgItemText (dlg, item_ctrl_id (c->gpg_cmd), c->pwd, sizeof (c->pwd) -1); |
GetDlgItemText (dlg, item_ctrl_id (c->gpg_cmd), c->pwd, n+1); |
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} |
} |
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if (reg_prefs.cache_time > 0 && !c->is_card && !strstr (c->keyid, "missing")) { |
res = gpgme_op_decrypt_result (c->gpg); |
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if (!res) |
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res_sig = gpgme_op_sign_result (c->gpg); |
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if (reg_prefs.cache_time > 0 && !c->is_card && |
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((res && res->recipients) || (res_sig && res_sig->signatures))) { |
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if (agent_get_cache (c->keyid, &item)) |
if (agent_get_cache (c->keyid, &item)) |
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agent_unlock_cache_entry (&item); |
agent_unlock_cache_entry (&item); |
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else |
else |
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int prev_was_bad, int fd) |
int prev_was_bad, int fd) |
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{ |
{ |
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passphrase_cb_s *c = (passphrase_cb_s*)hook; |
passphrase_cb_s *c = (passphrase_cb_s*)hook; |
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HANDLE hd = (HANDLE)fd; |
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void *item; |
void *item; |
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const char *keyid, *pass; |
const char *keyid, *pass; |
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DWORD n; |
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int rc; |
int rc; |
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/* XXX: pubkey_enc cancel does not quit gpg.exe */ |
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/* XXX: handle prev_was_bad case. */ |
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if (!c) |
if (!c) |
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return gpg_error (GPG_ERR_INV_ARG); |
return gpg_error (GPG_ERR_INV_ARG); |
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if (passphrase_info) { |
if (passphrase_info) { |
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if (strlen (passphrase_info) < 16) {/* assume symetric encryption. */ |
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int n=2; |
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c->sym.sym_algo = atoi (passphrase_info); |
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if (c->sym.sym_algo > 9) |
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n++; |
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/* XXX: be more strict. */ |
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c->sym.s2k_mode = atoi (passphrase_info+n); |
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c->sym.s2k_hash = atoi (passphrase_info+n+2); |
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} |
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keyid = parse_gpg_keyid (passphrase_info); |
keyid = parse_gpg_keyid (passphrase_info); |
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pass = agent_get_cache (keyid, &item); |
pass = agent_get_cache (keyid+8, &item); |
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if (pass) { |
if (pass) { |
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agent_unlock_cache_entry (&item); |
agent_unlock_cache_entry (&item); |
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c->pwd_init = 0; |
c->pwd_init = 0; |
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write (fd, pass, strlen (pass)); |
if (!WriteFile (hd, pass, strlen (pass), &n, NULL)) |
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write (fd, "\n", 1); |
log_debug ("passphrase_cb: WriteFile() failed ec=%d\n", w32_errno); |
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if (!WriteFile (hd, "\n", 1, &n, NULL)) |
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log_debug ("passphrase_cb: WriteFile() failed ec=%d\n", w32_errno); |
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return 0; |
return 0; |
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} |
} |
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} |
} |
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(LPARAM)c); |
(LPARAM)c); |
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} |
} |
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if (rc == -1) { |
if (rc == -1) { |
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write (fd, "\n", 1); |
WriteFile (hd, "\n", 1, &n, NULL); |
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return gpg_error (GPG_ERR_EOF); |
return gpg_error (GPG_ERR_EOF); |
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} |
} |
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c->pwd_init = 0; |
c->pwd_init = 0; |
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} |
} |
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if (c->cancel) { |
if (c->cancel) { |
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write (fd, "\n", 1); |
WriteFile (hd, "\n", 1, &n, NULL); |
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return gpg_error (GPG_ERR_EOF); |
return gpg_error (GPG_ERR_EOF); |
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} |
} |
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write (fd, c->pwd, strlen (c->pwd)); |
WriteFile (hd, c->pwd, strlen (c->pwd), &n, NULL); |
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write (fd, "\n", 1); |
WriteFile (hd, "\n", 1, &n, NULL); |
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return 0; |
return 0; |
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} |
} |
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