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/* wptCardEditCB.cpp - Card callbacks |
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* Copyright (C) 2003, 2004, 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. |
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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 this program; if not, gpg_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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#include <windows.h> |
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#include <stdio.h> |
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#include <malloc.h> |
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#include <string.h> |
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#include <stdlib.h> |
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|
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#include "gpgme.h" |
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#include "wptCard.h" |
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#include "wptCardEdit.h" |
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#include "wptErrors.h" |
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|
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#define save_write(val) ((val)? (val) : "") |
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static const char *stat_key = ""; |
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|
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/* Wrapper to emulate write(). */ |
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static int |
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gpg_write (int fd, const void *buf, size_t buflen) |
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{ |
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HANDLE hd = (HANDLE)fd; |
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DWORD n; |
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|
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MessageBox (NULL, (const char*)buf, stat_key, MB_OK); |
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WriteFile (hd, buf, buflen, &n, NULL); |
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WriteFile (hd, "\n", 1, &n, NULL); |
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return n; |
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} |
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|
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|
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/* Common card handler. Handle general card status events. */ |
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static gpgme_error_t |
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common_card_handler (GpgCardEdit *c, gpgme_status_code_t code, |
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const char *key, int fd) |
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{ |
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const char *s; |
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|
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if (!strcmp (key, "cardctrl.insert_card_okay")) { |
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if (c->card_cb) { |
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s = c->card_cb (1, c->cb_value); |
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gpg_write (fd, s, strlen (s)); |
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return 0; |
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} |
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} |
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if (code == GPGME_STATUS_CARDCTRL && *key == '5') |
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c->setResult (GPG_CARDRES_NOCARD); |
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|
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/* This can happen for example if a wrong PIN were |
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submitted. In such a case, we quit ASAP. */ |
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if (code == GPGME_STATUS_SC_OP_FAILURE) { |
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c->setResult (GPG_CARDRES_BAD_PIN); |
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s = "quit\n"; |
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gpg_write (fd, s, strlen (s)); |
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return 0; |
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} |
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return 0; |
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} |
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|
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|
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/* handler for changing PINs of cards. */ |
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static gpgme_error_t |
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change_pin_handler (void *opaque, gpgme_status_code_t code, |
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const char *key, int fd) |
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{ |
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GpgCardEdit *c = (GpgCardEdit *)opaque; |
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const char *s = ""; |
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|
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if (!c) |
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return gpg_error (GPG_ERR_EOF); |
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|
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stat_key = key; /* XXX: debug code */ |
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|
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common_card_handler (c, code, key, fd); |
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|
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if (!strcmp (key, "cardedit.prompt")) { |
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if (c->cnt == 0) { |
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c->cnt++; |
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s = "admin"; |
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} |
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else if (c->cnt == 1) { |
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c->cnt++; |
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s = "passwd"; |
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} |
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else { |
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c->reset (); |
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s = "quit"; |
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} |
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gpg_write (fd, s, strlen (s)); |
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return 0; |
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} |
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if (!strcmp (key, "cardutil.change_pin.menu")) { |
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if (c->cnt == 2) { |
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c->cnt++; |
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switch (c->type) { |
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case GPG_EDITCARD_CHUPIN: s = "1"; break; |
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case GPG_EDITCARD_UNBPIN: s = "2"; break; |
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case GPG_EDITCARD_CHAPIN: s = "3"; break; |
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default: s = "Q"; |
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} |
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gpg_write (fd, s, strlen (s)); |
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return 0; |
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} |
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else if (c->cnt > 0) { |
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gpg_write (fd, "Q", 1); |
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return 0; |
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} |
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} |
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if (c->type == GPG_EDITCARD_CHUPIN) { |
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if (!strcmp (key, "passphrase.pin.ask")) { |
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s = c->pin; |
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c->cnt++; |
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} |
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if (!strcmp (key, "passphrase.pin.new.ask")) { |
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s = c->pin_new; |
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c->cnt++; |
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} |
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if (!strcmp (key, "passphrase.pin.repeat") || |
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!strcmp (key, "passphrase.ask")) { |
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s = c->pin_new; |
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c->cnt++; |
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} |
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gpg_write (fd, s, strlen (s)); |
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} |
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else if (c->type == GPG_EDITCARD_CHAPIN) { |
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if (!strcmp (key, "passphrase.adminpin.ask")) { |
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s = c->admin_pin; |
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c->cnt++; |
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} |
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if (!strcmp (key, "passphrase.adminpin.new.ask")) { |
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s = c->pin_new; |
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c->cnt++; |
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} |
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if (!strcmp (key, "passphrase.pin.repeat") || |
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!strcmp (key, "passphrase.ask")) { |
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s = c->pin_new; |
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c->cnt++; |
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} |
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gpg_write (fd, s, strlen (s)); |
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} |
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else if (c->type == GPG_EDITCARD_UNBPIN) { |
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/* todo */ |
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} |
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|
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return 0; |
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} |
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|
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|
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/* edit card attributes handler. */ |
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static gpgme_error_t |
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editcard_handler (void * opaque, gpgme_status_code_t code, |
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const char *key, int fd) |
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{ |
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GpgCardEdit *c = (GpgCardEdit *)opaque; |
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const char *s = ""; |
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|
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if (!c) |
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return gpg_error (GPG_ERR_EOF); |
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|
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stat_key = key; |
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|
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common_card_handler (c, code, key, fd); |
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|
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if (!strcmp (key, "cardedit.prompt")) { |
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if (c->getResult ()) { /* in case of an error we quit. */ |
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c->cnt = 0; |
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s = "quit"; |
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gpg_write (fd, s, strlen (s)); |
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return 0; |
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} |
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if (c->cnt == 0) { /* first switch in the admin mode */ |
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c->cnt++; |
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s = "admin"; |
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gpg_write (fd, s, strlen (s)); |
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return 0; |
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} |
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if (c->cnt == 1) {/* then run the send command */ |
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c->cnt++; |
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switch (c->type) { |
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case GPG_EDITCARD_NAME: s = "name"; break; |
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case GPG_EDITCARD_KEYURL: s = "url"; break; |
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case GPG_EDITCARD_LOGIN: s = "login"; break; |
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case GPG_EDITCARD_SEX: s = "sex"; break; |
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case GPG_EDITCARD_LANG: s = "lang"; break; |
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case GPG_EDITCARD_GENKEY: s = "generate"; break; |
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default: s = "quit"; |
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} |
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gpg_write (fd, s, strlen (s)); |
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return 0; |
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} |
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else if (c->cnt >= 2) {/* done: send exit */ |
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c->reset (); |
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s = "quit"; |
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gpg_write (fd, s, strlen (s)); |
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return 0; |
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} |
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} |
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if (c->cnt > 0) { |
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if (!strcmp (key, "passphrase.adminpin.ask")) { |
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gpg_write (fd, c->admin_pin, strlen (c->admin_pin)); |
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return 0; |
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} |
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if (!strcmp (key, "passphrase.pin.ask")) { |
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gpg_write (fd, c->pin, strlen (c->pin)); |
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return 0; |
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} |
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} |
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switch (c->type) { |
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case GPG_EDITCARD_NAME: |
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if (!strcmp (key, "keygen.smartcard.surname")) { |
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s = save_write (c->edit.surname); |
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gpg_write (fd, s, strlen (s)); |
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} |
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else if (!strcmp (key, "keygen.smartcard.givenname")) { |
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s = save_write (c->edit.givenname); |
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gpg_write (fd, s, strlen (s)); |
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} |
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break; |
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|
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case GPG_EDITCARD_KEYURL: |
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if (!strcmp (key, "cardedit.change_url")) { |
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s = save_write (c->edit.keyurl); |
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gpg_write (fd, s, strlen (s)); |
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} |
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break; |
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|
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case GPG_EDITCARD_LOGIN: |
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if (!strcmp (key, "cardedit.change_login")) { |
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s = save_write (c->edit.login); |
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gpg_write (fd, s, strlen (s)); |
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} |
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break; |
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|
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case GPG_EDITCARD_SEX: |
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if (!strcmp (key, "cardedit.change_sex")) { |
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static char buf[2]; |
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if (c->edit.sex != 'M' |
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&& c->edit.sex != 'F' |
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&& c->edit.sex != ' ') { |
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buf[0] = ' '; buf[1] = 0; |
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} |
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else { |
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buf[0] = c->edit.sex; |
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buf[1] = 0; |
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} |
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gpg_write (fd, buf, strlen (buf)); |
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} |
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break; |
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|
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case GPG_EDITCARD_LANG: |
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if (!strcmp (key, "cardedit.change_lang")) { |
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s = save_write (c->edit.lang); |
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gpg_write (fd, s, strlen (s)); |
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} |
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break; |
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|
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case GPG_EDITCARD_GENKEY: |
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if (!strcmp (key, "passphrase.enter")) |
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gpg_write (fd, c->keygen.pass, strlen (c->keygen.pass)); |
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if (!strcmp (key, "cardedit.genkeys.backup_enc")) { |
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s = c->keygen.flags & GPG_CARDFLAG_BAKENC? "Y" : "N"; |
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gpg_write (fd, s, strlen (s)); |
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} |
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if (!strcmp (key, "cardedit.genkeys.replace_keys")) { |
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if (! (c->keygen.flags & GPG_CARDFLAG_REPLACE)) |
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c->cancel = 1; |
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s = c->keygen.flags & GPG_CARDFLAG_REPLACE? "Y" : "N"; |
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gpg_write (fd, s, strlen (s)); |
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} |
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else if (!strcmp (key, "keygen.valid")) { |
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s = save_write (c->keygen.expdate); |
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gpg_write (fd, s, strlen (s)); |
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} |
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else if (!strcmp (key, "keygen.name")) { |
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s = save_write (c->keygen.name); |
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gpg_write (fd, s, strlen (s)); |
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} |
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else if (!strcmp (key, "keygen.email")) { |
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s = save_write (c->keygen.email); |
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gpg_write (fd, s, strlen (s)); |
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} |
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else if (!strcmp (key, "keygen.comment")) { |
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s = save_write (c->keygen.comment); |
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gpg_write (fd, s, strlen (s)); |
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} |
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break; |
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|
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default: |
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break; |
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} |
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|
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return 0; |
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} |
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|
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|
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/* Check if a GPG status code occured which marks the |
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current operation as failed. |
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Return value: gpg error constant. */ |
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static gpgme_error_t |
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map_result (GpgCardEdit *ce) |
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{ |
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if (!ce->getResult ()) |
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return gpg_error (GPG_ERR_NO_ERROR); |
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if (ce->getResult () & GPG_CARDRES_NOCARD) |
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return gpg_error (GPG_ERR_CARD_REMOVED); |
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if (ce->getResult () & GPG_CARDRES_BAD_PIN) |
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return gpg_error (GPG_ERR_BAD_PIN); |
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return 0; |
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} |
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|
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|
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/* Wrapper around the gpgme card interface. |
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@ctx: context to use. |
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@ce: card edit context. |
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Return value: 0 on success. */ |
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gpgme_error_t |
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gpg_card_edit (gpgme_ctx_t ctx, GpgCardEdit *ce) |
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{ |
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gpgme_data_t out; |
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gpgme_key_t key; |
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gpgme_error_t err; |
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|
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err = gpgme_data_new (&out); |
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if (err) |
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return err; |
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|
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/* XXX: dummy key */ |
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key = (gpgme_key_t)calloc (1, sizeof *key); |
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key->subkeys = (gpgme_subkey_t)calloc (1, sizeof *key->subkeys); |
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key->subkeys->fpr = strdup ("foo"); |
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|
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if (ce->type > GPG_EDITCARD_CHPIN_ID) |
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err = gpgme_op_card_edit (ctx, key, change_pin_handler, ce, out); |
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else |
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err = gpgme_op_card_edit (ctx, key, editcard_handler, ce, out); |
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if (!err) |
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err = map_result (ce); |
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|
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if (key) { /* XXX */ |
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free (key->subkeys->keyid); |
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free (key->subkeys); |
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free (key); |
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} |
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gpgme_data_release (out); |
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return err; |
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} |
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