trunk/Src/wptCardEditCB.cpp

/* wptCardEditCB.cpp - Card callbacks
 *      Copyright (C) 2003, 2004, 2005 Timo Schulz
 *      Copyright (C) 2005 g10 Code GmbH
 *
 * This file is part of WinPT.
 *
 * WinPT is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * WinPT is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, gpg_write to the Free Software Foundation, 
 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
 */
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <windows.h>
#include <windows.h>
#include <stdio.h>
#include <malloc.h>
#include <string.h>
#include <stdlib.h>

#include "gpgme.h"
#include "wptCard.h"
#include "wptCardEdit.h"
#include "wptErrors.h"

#define save_write(val) ((val)? (val) : "")
static const char *stat_key = "";

/* Wrapper to emulate write(). */
static int
gpg_write (int fd, const void *buf, size_t buflen)
{
    HANDLE hd = (HANDLE)fd;
    DWORD n;

    MessageBox (NULL, (const char*)buf, stat_key, MB_OK);
    WriteFile (hd, buf, buflen, &n, NULL);
    WriteFile (hd, "\n", 1, &n, NULL);
    return n;
}


/* Common card handler. Handle general card status events. */
static gpgme_error_t
common_card_handler (GpgCardEdit *c, gpgme_status_code_t code, 
                     const char *key, int fd)
{
    const char *s;

    if (!strcmp (key,  "cardctrl.insert_card.okay")) {
        if (c->card_cb) {
            s = c->card_cb (CARD_CTL_INSERT, c->cb_value);
            gpg_write (fd, s, strlen (s));
            return 0;
        }
    }

    if (code == GPGME_STATUS_CARDCTRL && 
        (*key == CARD_CTL_NO_CARD || *key == CARD_CTL_NO_READER))
        c->setResult (GPG_CARDRES_NOCARD);

    /* This can happen for example if a wrong PIN were
       submitted. In such a case, we quit ASAP. */
    if (code == GPGME_STATUS_SC_OP_FAILURE) {
        if (key && !strcmp (key, "2"))
            c->setResult (GPG_CARDRES_BAD_PIN);
        else if (key && !strcmp (key, "1"))
            c->setResult (GPG_CARDRES_CANCEL);
        s = "quit\n";
        gpg_write (fd, s, strlen (s));
        return 0;
    }
    return 0;
}


/* handler for changing PINs of cards. */
static gpgme_error_t
change_pin_handler (void *opaque, gpgme_status_code_t code, 
                    const char *key, int fd)
{
    GpgCardEdit *c = (GpgCardEdit *)opaque;
    const char *s = "";
    int type;

    if (!c)
        return gpg_error (GPG_ERR_EOF);

    stat_key = key; /* XXX: debug code */

    common_card_handler (c, code, key, fd);

    type = c->getType ();
    if (!strcmp (key,  "cardedit.prompt")) {
        if (c->cnt == 0) {
            c->cnt++;
            s = "admin";
        }
        else if (c->cnt == 1) {
            c->cnt++;
            s = "passwd";
        }
        else {
            c->reset ();
            s = "quit";
        }
        gpg_write (fd, s, strlen (s));
        return 0;
    }
    if (!strcmp (key,  "cardutil.change_pin.menu")) {
        if (c->cnt == 2) {
            c->cnt++;
            switch (type) {
            case GPG_EDITCARD_CHUPIN: s = "1"; break;
            case GPG_EDITCARD_UNBPIN: s = "2"; break;
            case GPG_EDITCARD_CHAPIN: s = "3"; break;
            default:                  s = "Q";
            }
            gpg_write (fd, s, strlen (s));
            return 0;
        }
        else if (c->cnt > 0) {
            gpg_write (fd, "Q", 1);
            return 0;
        }
    }
    if (type == GPG_EDITCARD_CHUPIN) {
        if (!strcmp (key, "passphrase.pin.ask")) {
            s = c->pin;
            c->cnt++;
        }
        if (!strcmp (key, "passphrase.pin.new.ask")) {
            s = c->pin_new;
            c->cnt++;
        }
        if (!strcmp (key, "passphrase.pin.repeat") || 
            !strcmp (key, "passphrase.ask")) {
            s = c->pin_new;
            c->cnt++;
        }
        gpg_write (fd, s, strlen (s));
    }
    else if (type == GPG_EDITCARD_CHAPIN) {
        if (!strcmp (key, "passphrase.adminpin.ask")) {
            s = c->admin_pin;
            c->cnt++;
        }
        if (!strcmp (key, "passphrase.adminpin.new.ask")) {
            s = c->pin_new;
            c->cnt++;
        }
        if (!strcmp (key, "passphrase.pin.repeat") ||
            !strcmp (key, "passphrase.ask")) {
            s = c->pin_new;
            c->cnt++;
        }
        gpg_write (fd, s, strlen (s));
    }
    else if (type == GPG_EDITCARD_UNBPIN) {
        /* todo */
    }

    return 0;
}


/* edit card attributes handler. */
static gpgme_error_t
editcard_handler (void * opaque, gpgme_status_code_t code, 
                  const char *key, int fd)
{
    GpgCardEdit *c = (GpgCardEdit *)opaque;   
    const char *s = "";
    int type;

    if (!c)
        return gpg_error (GPG_ERR_EOF);

    stat_key = key;

    common_card_handler (c, code, key, fd);

    type = c->getType ();
    if (!strcmp (key, "cardedit.prompt")) {
        if (c->getResult ()) { /* in case of an error we quit. */
            c->cnt = 0;
            s = "quit";
            gpg_write (fd, s, strlen (s));
            return 0;
        }
        if (c->cnt == 0) { /* first switch in the admin mode */
            c->cnt++;
            s = "admin";
            gpg_write (fd, s, strlen (s));
            return 0;
        }
        if (c->cnt == 1) {/* then run the send command */
            c->cnt++;
            switch (type) {
            case GPG_EDITCARD_NAME:   s = "name"; break;
            case GPG_EDITCARD_KEYURL: s = "url"; break;
            case GPG_EDITCARD_LOGIN:  s = "login"; break;
            case GPG_EDITCARD_SEX:    s = "sex"; break;
            case GPG_EDITCARD_LANG:   s = "lang"; break;
            case GPG_EDITCARD_GENKEY: s = "generate"; break;
            default:                  s =  "quit";
            }
            gpg_write (fd, s, strlen (s));
            return 0;
        }
        else if (c->cnt >= 2) {/* done: send exit */
            c->reset ();
            s = "quit";
            gpg_write (fd, s, strlen (s));
            return 0;
        }
    }
    if (c->cnt > 0) {
        if (!strcmp (key, "passphrase.adminpin.ask")) {
            gpg_write (fd, c->admin_pin, strlen (c->admin_pin));
            return 0;
        }
        if (!strcmp (key, "passphrase.pin.ask")) {
            gpg_write (fd, c->pin, strlen (c->pin));
            return 0;
        }
    }
    switch (type) {
    case GPG_EDITCARD_NAME:
        if (!strcmp (key, "keygen.smartcard.surname")) {
            s = save_write (c->edit.surname);
            gpg_write (fd, s, strlen (s));
        }
        else if (!strcmp (key, "keygen.smartcard.givenname")) {
            s = save_write (c->edit.givenname);
            gpg_write (fd, s, strlen (s));
        }
        break;

    case GPG_EDITCARD_KEYURL:
        if (!strcmp (key, "cardedit.change_url")) {
            s = save_write (c->edit.keyurl);
            gpg_write (fd, s, strlen (s));
        }
        break;

    case GPG_EDITCARD_LOGIN:
        if (!strcmp (key, "cardedit.change_login"))  {
            s = save_write (c->edit.login);
            gpg_write (fd, s, strlen (s));
        }
        break;

    case GPG_EDITCARD_SEX:
        if (!strcmp (key, "cardedit.change_sex")) {
            static char buf[2];
            if (c->edit.sex != 'M'
                && c->edit.sex != 'F'
                && c->edit.sex != ' ') {
                buf[0] = ' '; buf[1] = 0;
            }
            else {
                buf[0] = c->edit.sex; 
                buf[1] = 0;
            }
            gpg_write (fd, buf, strlen (buf));
        }
        break;

    case GPG_EDITCARD_LANG:
        if (!strcmp (key, "cardedit.change_lang")) {
            s = save_write (c->edit.lang);
            gpg_write (fd, s, strlen (s));
        }
        break;

    case GPG_EDITCARD_GENKEY:
        if (!strcmp (key, "passphrase.enter"))
            gpg_write (fd, c->keygen.pass, strlen (c->keygen.pass));
        if (!strcmp (key, "cardedit.genkeys.backup_enc")) {
            s = c->keygen.flags & GPG_CARDFLAG_BAKENC? "Y" : "N";
            gpg_write (fd, s, strlen (s));
        }
        if (!strcmp (key, "cardedit.genkeys.replace_keys")) {
            if (! (c->keygen.flags & GPG_CARDFLAG_REPLACE))
                c->cancel = 1;
            s = c->keygen.flags & GPG_CARDFLAG_REPLACE? "Y" : "N";
            gpg_write (fd, s, strlen (s));
        }
        else if (!strcmp (key, "keygen.valid")) {
            s = save_write (c->keygen.expdate);
            gpg_write (fd, s, strlen (s));
        }
        else if (!strcmp (key, "keygen.name")) {
            s = save_write (c->keygen.name);
            gpg_write (fd, s, strlen (s));
        }
        else if (!strcmp (key, "keygen.email")) {
            s = save_write (c->keygen.email);
            gpg_write (fd, s, strlen (s));
        }
        else if (!strcmp (key, "keygen.comment")) {
            s = save_write (c->keygen.comment);
            gpg_write (fd, s, strlen (s));
        }
        break;

    default:
        break;
    }
    
    return 0;
}


/* Check if a GPG status code occured which marks the
   current operation as failed.
   Return value: gpg error constant. */
static gpgme_error_t
map_result (GpgCardEdit *ce)
{
    if (!ce->getResult ())
        return gpg_error (GPG_ERR_NO_ERROR);
    if (ce->getResult () & GPG_CARDRES_NOCARD)
        return gpg_error (GPG_ERR_CARD_NOT_PRESENT);
    if (ce->getResult () & GPG_CARDRES_BAD_PIN)
        return gpg_error (GPG_ERR_BAD_PIN);
    return 0;
}


/* Wrapper around the gpgme card interface.
   @ctx: context to use.
   @ce:  card edit context.
   Return value: 0 on success. */
gpgme_error_t
gpg_card_edit (gpgme_ctx_t ctx, GpgCardEdit *ce)
{
    gpgme_data_t out;
    gpgme_error_t err;

    err = gpgme_data_new (&out);
    if (err)
        return err;

    if (ce->getType () > GPG_EDITCARD_CHPIN_ID)
        err = gpgme_op_card_edit (ctx, NULL, change_pin_handler, ce, out);
    else
        err = gpgme_op_card_edit (ctx, NULL, editcard_handler, ce, out);
    if (!err)
        err = map_result (ce);
    
    gpgme_data_release (out);
    return err;
}
1	werner	36	/* wptCardEditCB.cpp - Card callbacks
2			* Copyright (C) 2003, 2004, 2005 Timo Schulz
3			* Copyright (C) 2005 g10 Code GmbH
4			*
5			* This file is part of WinPT.
6			*
7			* WinPT is free software; you can redistribute it and/or modify
8			* it under the terms of the GNU General Public License as published by
9			* the Free Software Foundation; either version 2 of the License, or
10			* (at your option) any later version.
11			*
12			* WinPT is distributed in the hope that it will be useful,
13			* but WITHOUT ANY WARRANTY; without even the implied warranty of
14			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15			* GNU General Public License for more details.
16			*
17			* You should have received a copy of the GNU General Public License
18			* along with this program; if not, gpg_write to the Free Software Foundation,
19			* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
20			*/
21			#ifdef HAVE_CONFIG_H
22			#include <config.h>
23			#endif
24
25			#include <windows.h>
26			#include <windows.h>
27			#include <stdio.h>
28			#include <malloc.h>
29			#include <string.h>
30			#include <stdlib.h>
31
32			#include "gpgme.h"
33			#include "wptCard.h"
34			#include "wptCardEdit.h"
35			#include "wptErrors.h"
36
37			#define save_write(val) ((val)? (val) : "")
38			static const char *stat_key = "";
39
40			/* Wrapper to emulate write(). */
41			static int
42			gpg_write (int fd, const void *buf, size_t buflen)
43			{
44			HANDLE hd = (HANDLE)fd;
45			DWORD n;
46
47			MessageBox (NULL, (const char*)buf, stat_key, MB_OK);
48			WriteFile (hd, buf, buflen, &n, NULL);
49			WriteFile (hd, "\n", 1, &n, NULL);
50			return n;
51			}
52
53
54			/* Common card handler. Handle general card status events. */
55			static gpgme_error_t
56			common_card_handler (GpgCardEdit *c, gpgme_status_code_t code,
57			const char *key, int fd)
58			{
59			const char *s;
60
61			if (!strcmp (key, "cardctrl.insert_card.okay")) {
62			if (c->card_cb) {
63			s = c->card_cb (CARD_CTL_INSERT, c->cb_value);
64			gpg_write (fd, s, strlen (s));
65			return 0;
66			}
67			}
68
69			if (code == GPGME_STATUS_CARDCTRL &&
70			(key == CARD_CTL_NO_CARD \|\| key == CARD_CTL_NO_READER))
71			c->setResult (GPG_CARDRES_NOCARD);
72
73			/* This can happen for example if a wrong PIN were
74			submitted. In such a case, we quit ASAP. */
75			if (code == GPGME_STATUS_SC_OP_FAILURE) {
76			if (key && !strcmp (key, "2"))
77			c->setResult (GPG_CARDRES_BAD_PIN);
78			else if (key && !strcmp (key, "1"))
79			c->setResult (GPG_CARDRES_CANCEL);
80			s = "quit\n";
81			gpg_write (fd, s, strlen (s));
82			return 0;
83			}
84			return 0;
85			}
86
87
88			/* handler for changing PINs of cards. */
89			static gpgme_error_t
90			change_pin_handler (void *opaque, gpgme_status_code_t code,
91			const char *key, int fd)
92			{
93			GpgCardEdit c = (GpgCardEdit )opaque;
94			const char *s = "";
95			int type;
96
97			if (!c)
98			return gpg_error (GPG_ERR_EOF);
99
100			stat_key = key; /* XXX: debug code */
101
102			common_card_handler (c, code, key, fd);
103
104			type = c->getType ();
105			if (!strcmp (key, "cardedit.prompt")) {
106			if (c->cnt == 0) {
107			c->cnt++;
108			s = "admin";
109			}
110			else if (c->cnt == 1) {
111			c->cnt++;
112			s = "passwd";
113			}
114			else {
115			c->reset ();
116			s = "quit";
117			}
118			gpg_write (fd, s, strlen (s));
119			return 0;
120			}
121			if (!strcmp (key, "cardutil.change_pin.menu")) {
122			if (c->cnt == 2) {
123			c->cnt++;
124			switch (type) {
125			case GPG_EDITCARD_CHUPIN: s = "1"; break;
126			case GPG_EDITCARD_UNBPIN: s = "2"; break;
127			case GPG_EDITCARD_CHAPIN: s = "3"; break;
128			default: s = "Q";
129			}
130			gpg_write (fd, s, strlen (s));
131			return 0;
132			}
133			else if (c->cnt > 0) {
134			gpg_write (fd, "Q", 1);
135			return 0;
136			}
137			}
138			if (type == GPG_EDITCARD_CHUPIN) {
139			if (!strcmp (key, "passphrase.pin.ask")) {
140			s = c->pin;
141			c->cnt++;
142			}
143			if (!strcmp (key, "passphrase.pin.new.ask")) {
144			s = c->pin_new;
145			c->cnt++;
146			}
147			if (!strcmp (key, "passphrase.pin.repeat") \|\|
148			!strcmp (key, "passphrase.ask")) {
149			s = c->pin_new;
150			c->cnt++;
151			}
152			gpg_write (fd, s, strlen (s));
153			}
154			else if (type == GPG_EDITCARD_CHAPIN) {
155			if (!strcmp (key, "passphrase.adminpin.ask")) {
156			s = c->admin_pin;
157			c->cnt++;
158			}
159			if (!strcmp (key, "passphrase.adminpin.new.ask")) {
160			s = c->pin_new;
161			c->cnt++;
162			}
163			if (!strcmp (key, "passphrase.pin.repeat") \|\|
164			!strcmp (key, "passphrase.ask")) {
165			s = c->pin_new;
166			c->cnt++;
167			}
168			gpg_write (fd, s, strlen (s));
169			}
170			else if (type == GPG_EDITCARD_UNBPIN) {
171			/* todo */
172			}
173
174			return 0;
175			}
176
177
178			/* edit card attributes handler. */
179			static gpgme_error_t
180			editcard_handler (void * opaque, gpgme_status_code_t code,
181			const char *key, int fd)
182			{
183			GpgCardEdit c = (GpgCardEdit )opaque;
184			const char *s = "";
185			int type;
186
187			if (!c)
188			return gpg_error (GPG_ERR_EOF);
189
190			stat_key = key;
191
192			common_card_handler (c, code, key, fd);
193
194			type = c->getType ();
195			if (!strcmp (key, "cardedit.prompt")) {
196			if (c->getResult ()) { /* in case of an error we quit. */
197			c->cnt = 0;
198			s = "quit";
199			gpg_write (fd, s, strlen (s));
200			return 0;
201			}
202			if (c->cnt == 0) { /* first switch in the admin mode */
203			c->cnt++;
204			s = "admin";
205			gpg_write (fd, s, strlen (s));
206			return 0;
207			}
208			if (c->cnt == 1) {/* then run the send command */
209			c->cnt++;
210			switch (type) {
211			case GPG_EDITCARD_NAME: s = "name"; break;
212			case GPG_EDITCARD_KEYURL: s = "url"; break;
213			case GPG_EDITCARD_LOGIN: s = "login"; break;
214			case GPG_EDITCARD_SEX: s = "sex"; break;
215			case GPG_EDITCARD_LANG: s = "lang"; break;
216			case GPG_EDITCARD_GENKEY: s = "generate"; break;
217			default: s = "quit";
218			}
219			gpg_write (fd, s, strlen (s));
220			return 0;
221			}
222			else if (c->cnt >= 2) {/* done: send exit */
223			c->reset ();
224			s = "quit";
225			gpg_write (fd, s, strlen (s));
226			return 0;
227			}
228			}
229			if (c->cnt > 0) {
230			if (!strcmp (key, "passphrase.adminpin.ask")) {
231			gpg_write (fd, c->admin_pin, strlen (c->admin_pin));
232			return 0;
233			}
234			if (!strcmp (key, "passphrase.pin.ask")) {
235			gpg_write (fd, c->pin, strlen (c->pin));
236			return 0;
237			}
238			}
239			switch (type) {
240			case GPG_EDITCARD_NAME:
241			if (!strcmp (key, "keygen.smartcard.surname")) {
242			s = save_write (c->edit.surname);
243			gpg_write (fd, s, strlen (s));
244			}
245			else if (!strcmp (key, "keygen.smartcard.givenname")) {
246			s = save_write (c->edit.givenname);
247			gpg_write (fd, s, strlen (s));
248			}
249			break;
250
251			case GPG_EDITCARD_KEYURL:
252			if (!strcmp (key, "cardedit.change_url")) {
253			s = save_write (c->edit.keyurl);
254			gpg_write (fd, s, strlen (s));
255			}
256			break;
257
258			case GPG_EDITCARD_LOGIN:
259			if (!strcmp (key, "cardedit.change_login")) {
260			s = save_write (c->edit.login);
261			gpg_write (fd, s, strlen (s));
262			}
263			break;
264
265			case GPG_EDITCARD_SEX:
266			if (!strcmp (key, "cardedit.change_sex")) {
267			static char buf[2];
268			if (c->edit.sex != 'M'
269			&& c->edit.sex != 'F'
270			&& c->edit.sex != ' ') {
271			buf[0] = ' '; buf[1] = 0;
272			}
273			else {
274			buf[0] = c->edit.sex;
275			buf[1] = 0;
276			}
277			gpg_write (fd, buf, strlen (buf));
278			}
279			break;
280
281			case GPG_EDITCARD_LANG:
282			if (!strcmp (key, "cardedit.change_lang")) {
283			s = save_write (c->edit.lang);
284			gpg_write (fd, s, strlen (s));
285			}
286			break;
287
288			case GPG_EDITCARD_GENKEY:
289			if (!strcmp (key, "passphrase.enter"))
290			gpg_write (fd, c->keygen.pass, strlen (c->keygen.pass));
291			if (!strcmp (key, "cardedit.genkeys.backup_enc")) {
292			s = c->keygen.flags & GPG_CARDFLAG_BAKENC? "Y" : "N";
293			gpg_write (fd, s, strlen (s));
294			}
295			if (!strcmp (key, "cardedit.genkeys.replace_keys")) {
296			if (! (c->keygen.flags & GPG_CARDFLAG_REPLACE))
297			c->cancel = 1;
298			s = c->keygen.flags & GPG_CARDFLAG_REPLACE? "Y" : "N";
299			gpg_write (fd, s, strlen (s));
300			}
301			else if (!strcmp (key, "keygen.valid")) {
302			s = save_write (c->keygen.expdate);
303			gpg_write (fd, s, strlen (s));
304			}
305			else if (!strcmp (key, "keygen.name")) {
306			s = save_write (c->keygen.name);
307			gpg_write (fd, s, strlen (s));
308			}
309			else if (!strcmp (key, "keygen.email")) {
310			s = save_write (c->keygen.email);
311			gpg_write (fd, s, strlen (s));
312			}
313			else if (!strcmp (key, "keygen.comment")) {
314			s = save_write (c->keygen.comment);
315			gpg_write (fd, s, strlen (s));
316			}
317			break;
318
319			default:
320			break;
321			}
322
323			return 0;
324			}
325
326
327			/* Check if a GPG status code occured which marks the
328			current operation as failed.
329			Return value: gpg error constant. */
330			static gpgme_error_t
331			map_result (GpgCardEdit *ce)
332			{
333			if (!ce->getResult ())
334			return gpg_error (GPG_ERR_NO_ERROR);
335			if (ce->getResult () & GPG_CARDRES_NOCARD)
336			return gpg_error (GPG_ERR_CARD_NOT_PRESENT);
337			if (ce->getResult () & GPG_CARDRES_BAD_PIN)
338			return gpg_error (GPG_ERR_BAD_PIN);
339			return 0;
340			}
341
342
343			/* Wrapper around the gpgme card interface.
344			@ctx: context to use.
345			@ce: card edit context.
346			Return value: 0 on success. */
347			gpgme_error_t
348			gpg_card_edit (gpgme_ctx_t ctx, GpgCardEdit *ce)
349			{
350			gpgme_data_t out;
351			gpgme_error_t err;
352
353			err = gpgme_data_new (&out);
354			if (err)
355			return err;
356
357			if (ce->getType () > GPG_EDITCARD_CHPIN_ID)
358			err = gpgme_op_card_edit (ctx, NULL, change_pin_handler, ce, out);
359			else
360			err = gpgme_op_card_edit (ctx, NULL, editcard_handler, ce, out);
361			if (!err)
362			err = map_result (ce);
363
364			gpgme_data_release (out);
365			return err;
366			}