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 <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 <stdio.h>
27			#include <malloc.h>
28			#include <string.h>
29			#include <stdlib.h>
30
31			#include "gpgme.h"
32			#include "wptCard.h"
33			#include "wptCardEdit.h"
34			#include "wptErrors.h"
35
36			#define save_write(val) ((val)? (val) : "")
37			static const char *stat_key = "";
38
39			/* Wrapper to emulate write(). */
40			static int
41			gpg_write (int fd, const void *buf, size_t buflen)
42			{
43			HANDLE hd = (HANDLE)fd;
44			DWORD n;
45
46			MessageBox (NULL, (const char*)buf, stat_key, MB_OK);
47			WriteFile (hd, buf, buflen, &n, NULL);
48			WriteFile (hd, "\n", 1, &n, NULL);
49			return n;
50			}
51
52
53			/* Common card handler. Handle general card status events. */
54			static gpgme_error_t
55			common_card_handler (GpgCardEdit *c, gpgme_status_code_t code,
56			const char *key, int fd)
57			{
58			const char *s;
59
60			if (!strcmp (key, "cardctrl.insert_card.okay")) {
61			if (c->card_cb) {
62			s = c->card_cb (CARD_CTL_INSERT, c->cb_value);
63			gpg_write (fd, s, strlen (s));
64			return 0;
65			}
66			}
67
68			if (code == GPGME_STATUS_CARDCTRL &&
69			(key == CARD_CTL_NO_CARD \|\| key == CARD_CTL_NO_READER))
70			c->setResult (GPG_CARDRES_NOCARD);
71
72			/* This can happen for example if a wrong PIN were
73			submitted. In such a case, we quit ASAP. */
74			if (code == GPGME_STATUS_SC_OP_FAILURE) {
75			if (key && !strcmp (key, "2"))
76			c->setResult (GPG_CARDRES_BAD_PIN);
77			else if (key && !strcmp (key, "1"))
78			c->setResult (GPG_CARDRES_CANCEL);
79			s = "quit\n";
80			gpg_write (fd, s, strlen (s));
81			return 0;
82			}
83			return 0;
84			}
85
86
87			/* handler for changing PINs of cards. */
88			static gpgme_error_t
89			change_pin_handler (void *opaque, gpgme_status_code_t code,
90			const char *key, int fd)
91			{
92			GpgCardEdit c = (GpgCardEdit )opaque;
93			const char *s = "";
94			int type;
95
96			if (!c)
97			return gpg_error (GPG_ERR_EOF);
98
99			stat_key = key; /* XXX: debug code */
100
101			common_card_handler (c, code, key, fd);
102
103			type = c->getType ();
104			if (!strcmp (key, "cardedit.prompt")) {
105			if (c->cnt == 0) {
106			c->cnt++;
107			s = "admin";
108			}
109			else if (c->cnt == 1) {
110			c->cnt++;
111			s = "passwd";
112			}
113			else {
114			c->reset ();
115			s = "quit";
116			}
117			gpg_write (fd, s, strlen (s));
118			return 0;
119			}
120			if (!strcmp (key, "cardutil.change_pin.menu")) {
121			if (c->cnt == 2) {
122			c->cnt++;
123			switch (type) {
124			case GPG_EDITCARD_CHUPIN: s = "1"; break;
125			case GPG_EDITCARD_UNBPIN: s = "2"; break;
126			case GPG_EDITCARD_CHAPIN: s = "3"; break;
127			default: s = "Q";
128			}
129			gpg_write (fd, s, strlen (s));
130			return 0;
131			}
132			else if (c->cnt > 0) {
133			gpg_write (fd, "Q", 1);
134			return 0;
135			}
136			}
137			if (type == GPG_EDITCARD_CHUPIN) {
138			if (!strcmp (key, "passphrase.pin.ask")) {
139			s = c->pin;
140			c->cnt++;
141			}
142			if (!strcmp (key, "passphrase.pin.new.ask")) {
143			s = c->pin_new;
144			c->cnt++;
145			}
146			if (!strcmp (key, "passphrase.pin.repeat") \|\|
147			!strcmp (key, "passphrase.ask")) {
148			s = c->pin_new;
149			c->cnt++;
150			}
151			gpg_write (fd, s, strlen (s));
152			}
153			else if (type == GPG_EDITCARD_CHAPIN) {
154			if (!strcmp (key, "passphrase.adminpin.ask")) {
155			s = c->admin_pin;
156			c->cnt++;
157			}
158			if (!strcmp (key, "passphrase.adminpin.new.ask")) {
159			s = c->pin_new;
160			c->cnt++;
161			}
162			if (!strcmp (key, "passphrase.pin.repeat") \|\|
163			!strcmp (key, "passphrase.ask")) {
164			s = c->pin_new;
165			c->cnt++;
166			}
167			gpg_write (fd, s, strlen (s));
168			}
169			else if (type == GPG_EDITCARD_UNBPIN) {
170			/* todo */
171			}
172
173			return 0;
174			}
175
176
177			/* edit card attributes handler. */
178			static gpgme_error_t
179			editcard_handler (void * opaque, gpgme_status_code_t code,
180			const char *key, int fd)
181			{
182			GpgCardEdit c = (GpgCardEdit )opaque;
183			const char *s = "";
184			int type;
185
186			if (!c)
187			return gpg_error (GPG_ERR_EOF);
188
189			stat_key = key;
190
191			common_card_handler (c, code, key, fd);
192
193			type = c->getType ();
194			if (!strcmp (key, "cardedit.prompt")) {
195			if (c->getResult ()) { /* in case of an error we quit. */
196			c->cnt = 0;
197			s = "quit";
198			gpg_write (fd, s, strlen (s));
199			return 0;
200			}
201			if (c->cnt == 0) { /* first switch in the admin mode */
202			c->cnt++;
203			s = "admin";
204			gpg_write (fd, s, strlen (s));
205			return 0;
206			}
207			if (c->cnt == 1) {/* then run the send command */
208			c->cnt++;
209			switch (type) {
210			case GPG_EDITCARD_NAME: s = "name"; break;
211			case GPG_EDITCARD_KEYURL: s = "url"; break;
212			case GPG_EDITCARD_LOGIN: s = "login"; break;
213			case GPG_EDITCARD_SEX: s = "sex"; break;
214			case GPG_EDITCARD_LANG: s = "lang"; break;
215			case GPG_EDITCARD_GENKEY: s = "generate"; break;
216			default: s = "quit";
217			}
218			gpg_write (fd, s, strlen (s));
219			return 0;
220			}
221			else if (c->cnt >= 2) {/* done: send exit */
222			c->reset ();
223			s = "quit";
224			gpg_write (fd, s, strlen (s));
225			return 0;
226			}
227			}
228			if (c->cnt > 0) {
229			if (!strcmp (key, "passphrase.adminpin.ask")) {
230			gpg_write (fd, c->admin_pin, strlen (c->admin_pin));
231			return 0;
232			}
233			if (!strcmp (key, "passphrase.pin.ask")) {
234			gpg_write (fd, c->pin, strlen (c->pin));
235			return 0;
236			}
237			}
238			switch (type) {
239			case GPG_EDITCARD_NAME:
240			if (!strcmp (key, "keygen.smartcard.surname")) {
241			s = save_write (c->edit.surname);
242			gpg_write (fd, s, strlen (s));
243			}
244			else if (!strcmp (key, "keygen.smartcard.givenname")) {
245			s = save_write (c->edit.givenname);
246			gpg_write (fd, s, strlen (s));
247			}
248			break;
249
250			case GPG_EDITCARD_KEYURL:
251			if (!strcmp (key, "cardedit.change_url")) {
252			s = save_write (c->edit.keyurl);
253			gpg_write (fd, s, strlen (s));
254			}
255			break;
256
257			case GPG_EDITCARD_LOGIN:
258			if (!strcmp (key, "cardedit.change_login")) {
259			s = save_write (c->edit.login);
260			gpg_write (fd, s, strlen (s));
261			}
262			break;
263
264			case GPG_EDITCARD_SEX:
265			if (!strcmp (key, "cardedit.change_sex")) {
266			static char buf[2];
267			if (c->edit.sex != 'M'
268			&& c->edit.sex != 'F'
269			&& c->edit.sex != ' ') {
270			buf[0] = ' '; buf[1] = 0;
271			}
272			else {
273			buf[0] = c->edit.sex;
274			buf[1] = 0;
275			}
276			gpg_write (fd, buf, strlen (buf));
277			}
278			break;
279
280			case GPG_EDITCARD_LANG:
281			if (!strcmp (key, "cardedit.change_lang")) {
282			s = save_write (c->edit.lang);
283			gpg_write (fd, s, strlen (s));
284			}
285			break;
286
287			case GPG_EDITCARD_GENKEY:
288			if (!strcmp (key, "passphrase.enter"))
289			gpg_write (fd, c->keygen.pass, strlen (c->keygen.pass));
290			if (!strcmp (key, "cardedit.genkeys.backup_enc")) {
291			s = c->keygen.flags & GPG_CARDFLAG_BAKENC? "Y" : "N";
292			gpg_write (fd, s, strlen (s));
293			}
294			if (!strcmp (key, "cardedit.genkeys.replace_keys")) {
295			if (! (c->keygen.flags & GPG_CARDFLAG_REPLACE))
296			c->cancel = 1;
297			s = c->keygen.flags & GPG_CARDFLAG_REPLACE? "Y" : "N";
298			gpg_write (fd, s, strlen (s));
299			}
300			else if (!strcmp (key, "keygen.valid")) {
301			s = save_write (c->keygen.expdate);
302			gpg_write (fd, s, strlen (s));
303			}
304			else if (!strcmp (key, "keygen.name")) {
305			s = save_write (c->keygen.name);
306			gpg_write (fd, s, strlen (s));
307			}
308			else if (!strcmp (key, "keygen.email")) {
309			s = save_write (c->keygen.email);
310			gpg_write (fd, s, strlen (s));
311			}
312			else if (!strcmp (key, "keygen.comment")) {
313			s = save_write (c->keygen.comment);
314			gpg_write (fd, s, strlen (s));
315			}
316			break;
317
318			default:
319			break;
320			}
321
322			return 0;
323			}
324
325
326			/* Check if a GPG status code occured which marks the
327			current operation as failed.
328			Return value: gpg error constant. */
329			static gpgme_error_t
330			map_result (GpgCardEdit *ce)
331			{
332			if (!ce->getResult ())
333			return gpg_error (GPG_ERR_NO_ERROR);
334			if (ce->getResult () & GPG_CARDRES_NOCARD)
335			return gpg_error (GPG_ERR_CARD_NOT_PRESENT);
336			if (ce->getResult () & GPG_CARDRES_BAD_PIN)
337			return gpg_error (GPG_ERR_BAD_PIN);
338			return 0;
339			}
340
341
342			/* Wrapper around the gpgme card interface.
343			@ctx: context to use.
344			@ce: card edit context.
345			Return value: 0 on success. */
346			gpgme_error_t
347			gpg_card_edit (gpgme_ctx_t ctx, GpgCardEdit *ce)
348			{
349			gpgme_data_t out;
350			gpgme_error_t err;
351
352			err = gpgme_data_new (&out);
353			if (err)
354			return err;
355
356			if (ce->getType () > GPG_EDITCARD_CHPIN_ID)
357			err = gpgme_op_card_edit (ctx, NULL, change_pin_handler, ce, out);
358			else
359			err = gpgme_op_card_edit (ctx, NULL, editcard_handler, ce, out);
360			if (!err)
361			err = map_result (ce);
362
363			gpgme_data_release (out);
364			return err;
365			}