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/* wptKeysignDlg.cpp - Key signing dialog |
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* Copyright (C) 2001-2004 Timo Schulz |
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* |
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* This file is part of WinPT. |
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* |
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* WinPT is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* WinPT is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with WinPT; if not, write to the Free Software Foundation, |
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA |
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*/ |
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|
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#include <windows.h> |
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#include <commctrl.h> |
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|
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#include "../resource.h" |
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#include "wptGPG.h" |
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#include "wptNLS.h" |
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#include "wptW32API.h" |
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#include "wptVersion.h" |
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#include "wptTypes.h" |
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#include "wptErrors.h" |
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#include "wptCommonCtl.h" |
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#include "wptContext.h" |
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#include "wptDlgs.h" |
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#include "wptUTF8.h" |
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#include "wptRegistry.h" |
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|
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static int sig_class_choice = 0; |
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|
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static const char * |
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get_printable_fpr (const char * fpr) |
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{ |
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static char pfpr[64]; |
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int pos = 0; |
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size_t i; |
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|
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for( i = 0; i < strlen( fpr ); i += 4 ) { |
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pfpr[pos++] = fpr[i]; |
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pfpr[pos++] = fpr[i+1]; |
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pfpr[pos++] = fpr[i+2]; |
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pfpr[pos++] = fpr[i+3]; |
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pfpr[pos++] = ' '; |
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} |
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return pfpr; |
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} /* get_printable_fpr */ |
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|
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|
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static const char * |
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get_keyinfo (gpgme_key_t key) |
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{ |
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static char buf[64+16]; |
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|
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_snprintf (buf, DIM (buf)-1-16, "%d-bit %s key, ID %s", |
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gpgme_key_get_ulong_attr (key, GPGME_ATTR_LEN, NULL, 0), |
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gpgme_key_get_string_attr (key, GPGME_ATTR_ALGO, NULL, 0), |
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gpgme_key_get_string_attr (key, GPGME_ATTR_KEYID, NULL, 0) + 8 ); |
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if (gpgme_key_get_ulong_attr (key, GPGME_ATTR_DIVERT_CARD, NULL, 0)) |
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strcat (buf, " (Card)"); |
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return buf; |
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} /* get_keyinfo */ |
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|
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|
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static int |
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do_fill_seckeylist (HWND dlg, const char * keyid) |
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{ |
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gpgme_keycache_t sec; |
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gpgme_key_t pk; |
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const char * s; |
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char * uid, * p; |
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int i = 0, n=0; |
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|
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sec = keycache_get_ctx (0); |
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if (!sec) |
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BUG (0); |
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gpgme_keycache_rewind (sec); |
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while (!gpgme_keycache_next_key (sec, 1, &pk)) |
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{ |
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s = gpgme_key_get_string_attr (pk, GPGME_ATTR_KEYID, NULL, 0); |
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if (!strcmp (s, keyid)) |
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continue; |
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/* skip all ElGamal sign+encrypt keys */ |
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if( gpgme_key_get_ulong_attr( pk, GPGME_ATTR_ALGO, NULL, 0 ) |
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== GPGME_PK_ELG_ES ) |
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continue; |
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/* make sure the public key is okay not: revoked, expired or disabled. */ |
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if( gpgme_key_get_ulong_attr (pk, GPGME_ATTR_EXPIRE, NULL, 0) |
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|| gpgme_key_get_ulong_attr (pk, GPGME_ATTR_KEY_REVOKED, NULL, 0) |
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|| gpgme_key_get_ulong_attr (pk, GPGME_ATTR_KEY_DISABLED, NULL, 0)) |
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continue; |
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s = gpgme_key_get_string_attr (pk, GPGME_ATTR_NAME, NULL, 0); |
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if( !s ) |
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continue; |
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uid = utf8_to_wincp (s, strlen (s)); |
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p = new char[strlen( uid ) + 64]; |
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if( !p ) |
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BUG( NULL ); |
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_snprintf (p, strlen (uid) + 63, "%s (%s)", uid, get_keyinfo (pk)); |
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SendDlgItemMessage (dlg, IDC_KEYSIGN_KEYLIST, CB_ADDSTRING, i, (LPARAM)(char *)p); |
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SendDlgItemMessage (dlg, IDC_KEYSIGN_KEYLIST, CB_SETITEMDATA, i++, (LPARAM)(DWORD)pk); |
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free_if_alloc (p); |
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free (uid); |
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n++; |
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} |
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SendDlgItemMessage (dlg, IDC_KEYSIGN_KEYLIST, CB_SETCURSEL, 0, 0); |
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if (!n) |
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return -1; |
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return 0; |
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} /* do_fill_seckeylist */ |
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|
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|
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static void |
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do_add_local_user( gpgme_ctx_t ctx, HWND dlg ) |
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{ |
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int idx; |
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const char * s; |
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gpgme_key_t key; |
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|
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idx = SendDlgItemMessage( dlg, IDC_KEYSIGN_KEYLIST, CB_GETCURSEL, 0, 0 ); |
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key = (gpgme_key_t)SendDlgItemMessage( dlg, IDC_KEYSIGN_KEYLIST, CB_GETITEMDATA, (WPARAM)idx, 0 ); |
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if( key && (s = gpgme_key_get_string_attr( key, GPGME_ATTR_KEYID, NULL, 0 )) ) |
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gpgme_set_local_user( ctx, s ); |
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} /* do_add_local_user */ |
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|
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|
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static void |
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do_check_protection (HWND dlg) |
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{ |
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int idx, protec; |
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gpgme_key_t key; |
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|
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idx = SendDlgItemMessage( dlg, IDC_KEYSIGN_KEYLIST, CB_GETCURSEL, 0, 0 ); |
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key = (gpgme_key_t)SendDlgItemMessage( dlg, IDC_KEYSIGN_KEYLIST, CB_GETITEMDATA, (WPARAM)idx, 0 ); |
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if (key) |
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{ |
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protec = gpgme_key_get_ulong_attr (key, GPGME_ATTR_IS_PROTECTED, NULL, 0); |
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if (!protec) |
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protec = gpgme_key_get_ulong_attr (key, GPGME_ATTR_DIVERT_CARD, NULL, 0); |
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EnableWindow (GetDlgItem (dlg, IDC_KEYSIGN_PASSPHRASE), protec? TRUE : FALSE); |
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} |
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} /* do_check_protection */ |
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|
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|
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BOOL CALLBACK |
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sig_class_dlg_proc (HWND dlg, UINT msg, WPARAM wparam, LPARAM lparam) |
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{ |
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switch (msg) |
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{ |
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case WM_INITDIALOG: |
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SetWindowText (dlg, _("Choose Signature Class")); |
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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\".")); |
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SetDlgItemText (dlg, IDC_SIGCLASS_CLASS0, _("(0) I will not answer (default)")); |
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SetDlgItemText (dlg, IDC_SIGCLASS_CLASS1, _("(1) I have not checked at all.")); |
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SetDlgItemText (dlg, IDC_SIGCLASS_CLASS2, _("(2) I have done causal checking.")); |
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SetDlgItemText (dlg, IDC_SIGCLASS_CLASS3, _("(3) I have done very careful checkings.")); |
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SetForegroundWindow (dlg); |
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center_window (dlg); |
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return TRUE; |
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|
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case WM_COMMAND: |
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switch( LOWORD( wparam ) ) { |
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case IDOK: |
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if( IsDlgButtonChecked( dlg, IDC_SIGCLASS_CLASS0 ) ) |
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sig_class_choice = 0; |
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else if( IsDlgButtonChecked( dlg, IDC_SIGCLASS_CLASS1 ) ) |
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sig_class_choice = 1; |
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else if( IsDlgButtonChecked( dlg, IDC_SIGCLASS_CLASS2 ) ) |
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sig_class_choice = 2; |
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else if( IsDlgButtonChecked( dlg, IDC_SIGCLASS_CLASS3 ) ) |
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sig_class_choice = 3; |
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else |
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sig_class_choice = 0; |
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EndDialog( dlg, TRUE ); |
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break; |
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} |
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break; |
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} |
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|
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return FALSE; |
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} /* sig_class_dlg_proc */ |
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|
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|
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BOOL CALLBACK |
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keysign_dlg_proc (HWND dlg, UINT msg, WPARAM wparam, LPARAM lparam) |
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{ |
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static gpgme_key_t key; |
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static int enable=0; |
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gpgme_editkey_t ke; |
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gpgme_ctx_t ctx; |
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gpgme_error_t err; |
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SYSTEMTIME st; |
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HWND h; |
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char keymsg[4096], pwd[256], *uid = NULL; |
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const char *keyid, *s; |
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u32 created; |
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int type, expires=0; |
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|
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|
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switch ( msg ) { |
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case WM_INITDIALOG: |
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enable = 0; |
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if( lparam == NULL ) |
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dlg_fatal_error( dlg, "Could not get dialog param." ); |
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#ifndef LANG_DE |
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SetWindowText( dlg, _("Key Signing") ); |
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#endif |
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key = (gpgme_key_t) lparam; |
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created = gpgme_key_get_ulong_attr(key, GPGME_ATTR_CREATED, NULL, 0); |
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s = gpgme_key_get_string_attr( key, GPGME_ATTR_USERID, NULL, 0 ); |
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if( s ) |
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uid = utf8_to_wincp (s, strlen (s)); |
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_snprintf( keymsg, sizeof keymsg -1, |
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_("pub %d/%s created: %s\n\n" |
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"Primary key fingerprint: %s\n\n" |
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"\t%s\n\n" |
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"\nAre you really sure that you want to sign this key with YOUR key?\n"), |
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gpgme_key_get_ulong_attr( key, GPGME_ATTR_LEN, NULL, 0 ), |
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gpgme_key_get_string_attr( key, GPGME_ATTR_KEYID, NULL, 0 )+8, |
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gpgme_key_expand_attr( GPGME_ATTR_CREATED, created ), |
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get_printable_fpr( gpgme_key_get_string_attr( key, GPGME_ATTR_FPR, NULL, 0 ) ), |
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uid ); |
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free (uid); |
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s = gpgme_key_get_string_attr (key, GPGME_ATTR_KEYID, NULL, 0); |
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if (do_fill_seckeylist (dlg, s)) { |
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msg_box( dlg, _("No valid secret key found."), _("Key Signing"), MB_ERR ); |
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EndDialog( dlg, FALSE ); |
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} |
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SetDlgItemText( dlg, IDC_KEYSIGN_INFOS, keymsg ); |
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#ifndef LANG_DE |
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SetDlgItemText( dlg, IDC_KEYSIGN_LOCAL, _("Sign local only (non exportable signature)") ); |
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SetDlgItemText (dlg, IDC_KEYSIGN_EXPSIG, _("Signature expires on")); |
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SetDlgItemText (dlg, IDC_KEYSIGN_NREV, _("Sign non-revocably")); |
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#endif |
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CheckDlgButton( dlg, IDC_KEYSIGN_LOCAL, BST_CHECKED ); |
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CheckDlgButton (dlg, IDC_KEYSIGN_EXPSIG, BST_UNCHECKED); |
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EnableWindow (GetDlgItem (dlg, IDC_KEYSIGN_EXPIRES), FALSE); |
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if (reg_prefs.expert == 0) |
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ShowWindow (GetDlgItem (dlg, IDC_KEYSIGN_NREV), SW_HIDE); |
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SetForegroundWindow( dlg ); |
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h = GetDlgItem( dlg, IDC_KEYSIGN_PASSPHRASE ); |
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SetFocus( h ); |
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return FALSE; |
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|
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case WM_SYSCOMMAND: |
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if( LOWORD( wparam ) == SC_CLOSE ) { |
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SetDlgItemText( dlg, IDC_KEYSIGN_PASSPHRASE, "" ); |
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EndDialog( dlg, TRUE ); |
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} |
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return FALSE; |
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|
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case WM_COMMAND: |
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if( HIWORD( wparam ) == CBN_SELCHANGE ) { |
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do_check_protection( dlg ); |
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break; |
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} |
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if (HIWORD (wparam) == BN_CLICKED && LOWORD (wparam) == IDC_KEYSIGN_EXPSIG) { |
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enable ^= 1; |
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EnableWindow (GetDlgItem (dlg, IDC_KEYSIGN_EXPIRES), enable? TRUE : FALSE); |
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} |
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|
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switch( LOWORD( wparam ) ) { |
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case IDOK: |
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dialog_box_param( glob_hinst, (LPCSTR)IDD_WINPT_SIGCLASS, dlg, |
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sig_class_dlg_proc, NULL, |
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_("Choose Signature Class"), IDS_WINPT_SIGCLASS ); |
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type = IsDlgButtonChecked (dlg, IDC_KEYSIGN_LOCAL); |
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if (type) |
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type = GPGME_EDITKEY_LSIGN; |
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else |
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type = GPGME_EDITKEY_SIGN; |
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|
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if (reg_prefs.expert && IsDlgButtonChecked (dlg, IDC_KEYSIGN_NREV)) |
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{ |
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type = GPGME_EDITKEY_NRSIGN; |
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if (type == GPGME_EDITKEY_LSIGN) |
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type = GPGME_EDITKEY_NRLSIGN; |
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} |
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if (IsDlgButtonChecked (dlg, IDC_KEYSIGN_EXPSIG)) { |
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expires = 1; |
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DateTime_GetSystemtime (GetDlgItem (dlg, IDC_KEYSIGN_EXPIRES), &st); |
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sprintf (keymsg, "%04d-%02d-%02d", st.wYear, st.wMonth, st.wDay); |
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} |
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|
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GetDlgItemText( dlg, IDC_KEYSIGN_PASSPHRASE, pwd, sizeof pwd - 1 ); |
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keyid = gpgme_key_get_string_attr( key, GPGME_ATTR_KEYID, NULL, 0 ); |
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if( !keyid ) { |
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msg_box( dlg, _("Could not get Key ID from key."), _("Key Signing"), MB_ERR ); |
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return FALSE; |
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} |
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err = gpgme_new( &ctx ); |
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if (err) |
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BUG (0); |
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do_add_local_user (ctx, dlg); |
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|
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err = gpgme_editkey_new (&ke); |
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if (err) |
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BUG (0); |
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err = gpgme_editkey_sign_set (ke, pwd, sig_class_choice, type, |
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expires? keymsg : NULL); |
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if (err) { |
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msg_box (dlg, gpgme_strerror (err), _("Key Signing"), MB_ERR); |
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gpgme_release (ctx); |
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gpgme_editkey_release (ke); |
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return FALSE; |
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} |
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|
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gpgme_set_edit_ctx (ctx, ke, type); |
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|
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err = gpgme_op_editkey( ctx, keyid ); |
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memset( &pwd, 0, sizeof pwd ); |
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if (err == GPGME_Conflict) |
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Sleep (500); /* it seems the process is not really finished */ |
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gpgme_release( ctx ); |
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gpgme_editkey_release( ke ); |
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if( err ) { |
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if( err == GPGME_Conflict ) |
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msg_box( dlg, _("Key is already signed by your key."), _("Key Signing"), MB_INFO ); |
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else if( err == GPGME_Invalid_Mode ) |
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msg_box( dlg, _("Unusable secret key."), _("Key Signing"), MB_ERR ); |
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else |
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msg_box( dlg, gpgme_strerror( err ), _("Key Signing"), MB_ERR ); |
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} |
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else { |
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status_box (dlg, _("Key successfully signed."), PGM_NAME); |
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keycache_set_reload (1); |
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EndDialog (dlg, TRUE); |
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} |
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return TRUE; |
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|
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case IDCANCEL: |
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EndDialog( dlg, FALSE ); |
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return FALSE; |
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} |
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break; |
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} |
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|
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return FALSE; |
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} /* keysign_dlg_proc */ |
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