trunk/Src/wptCardEdit.cpp

/* wptCardEdit.cpp - OpenPGP editing interface
 *      Copyright (C) 2005 Timo Schulz
 *
 * 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 WinPT; if not, write to the Free Software Foundation, 
 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
 */

#include <windows.h>
#include <time.h>

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

/* Create a new Smartcard context. */
static gpgme_error_t
gpg_card_new (gpg_card_t *ret_card)
{
    gpg_card_t c;

    if (!ret_card)
        return gpg_error (GPG_ERR_INV_ARG);
    *ret_card = NULL;
    c = (gpg_card_t)calloc (1, sizeof *c);
    if (!c)
        return gpg_error (GPG_ERR_ENOMEM);
    *ret_card = c;
    return 0;
}


/* Release an existing Smartcard context. @card. */
void
gpg_card_release (gpg_card_t card)
{
    int i;

    if (!card)
        return;
    if (card->aid)
        free (card->aid);   
    if (card->version)
        free (card->version);
    if (card->lang)
        free (card->lang);
    if (card->login)
        free (card->login);
    for (i=0; i < 3; i++) {
        if (card->fpr[i])
            free (card->fpr[i]);
        if (card->ca_fpr[i])
            free (card->ca_fpr[i]);
        if (card->fpr_created_str[i])
            free (card->fpr_created_str[i]);
    }
    if (card->surname)
        free (card->surname);
    if (card->givenname)
        free (card->givenname);
    if (card->serial)
        free (card->serial);
    if (card->vendor)
        free (card->vendor);
    if (card->url)
        free (card->url);
    if (card->card_type)
        free (card->card_type);
    free (card);

}


/* Parse the timestamp @long_ts and return a string
   representation of it (format: YYYY-DD-MM HH:MM:SS). */
static char*
get_str_timestamp (long long_ts)
{
    struct tm *tm;
    char *p, *fmt;

    tm = localtime (&long_ts);
    fmt = "%04d-%02d-%02d %02d:%02d:%02d";
    p = (char*)calloc (1, strlen (fmt)+32);
    if (!p)
        abort ();
    sprintf (p, fmt,
             tm->tm_year+1900, tm->tm_mon+1, tm->tm_mday,
             tm->tm_hour, tm->tm_min, tm->tm_sec);
    return p;
}


/* Colon handler for parsing the GPG card colon output. */
static gpgme_error_t
statuscard_colon_handler (gpg_card_t card, char * line)
{
    enum rectype_t {
        CARD_None = 0,
        CARD_AID,
        CARD_Version,
        CARD_Vendor,
        CARD_Serial,
        CARD_Name,
        CARD_Lang,
        CARD_Sex,
        CARD_Url,
        CARD_Login,
        CARD_MaxPinLen,
        CARD_SigCount,
        CARD_CAFpr,
        CARD_Fpr,
        CARD_FprTime
    };
    enum rectype_t rectype;    
    char *p, *pend;
    int field = 0;

    if (!line)
        return gpg_error (GPG_ERR_EOF);

    for (p = line; p; p = pend) {
        field++;
        pend = strchr (p, ':');
        if (pend)
            *pend++ = 0;

        if (field == 1) {
            if (!strcmp (p, "AID"))
                rectype = CARD_AID;
            else if( !strcmp( p, "version" ) )
                rectype = CARD_Version;
            else if( !strcmp( p, "vendor" ) )
                rectype = CARD_Vendor;
            else if( !strcmp( p, "serial" ) )
                rectype = CARD_Serial;
            else if( !strcmp( p, "name" ) )
                rectype = CARD_Name;
            else if( !strcmp( p, "lang" ) )
                rectype = CARD_Lang;
            else if( !strcmp( p, "sex" ) )
                rectype = CARD_Sex;
            else if( !strcmp( p, "url" ) )
                rectype = CARD_Url;
            else if( !strcmp( p, "login" ) )
                rectype = CARD_Login;
            else if( !strcmp( p, "maxpinlen" ) )
                rectype = CARD_MaxPinLen;
            else if( !strcmp( p, "sigcount" ) )
                rectype = CARD_SigCount;
            else if (!strcmp (p, "cafpr"))
                rectype = CARD_CAFpr;
            else if (!strcmp (p, "fpr"))
                rectype = CARD_Fpr;         
            else if (!strcmp (p, "fprtime"))
                rectype = CARD_FprTime;
            else
                rectype = CARD_None;
        }
        switch (rectype) {
        case CARD_AID:
            if (field == 2) {
                card->aid = strdup (p);
                if (!card->aid)
                    return gpg_error (GPG_ERR_ENOMEM);
            }
            else if (field == 3) {
                card->card_type = strdup (p);
                if (!card->card_type)
                    return gpg_error (GPG_ERR_ENOMEM);
            }
            break;

        case CARD_Version:
            if (field == 2) {
                card->version = strdup (p);
                if (!card->version)
                    return gpg_error (GPG_ERR_ENOMEM);
            }
            break;

        case CARD_Vendor:
            if (field == 3) {
                card->vendor = strdup (p);
                if (!card->vendor)
                    return gpg_error (GPG_ERR_ENOMEM);
            }
            break;

        case CARD_Serial:
            if (field == 2) {
                card->serial = strdup (p);
                if (!card->serial)
                    return gpg_error (GPG_ERR_ENOMEM);
            }
            break;
        case CARD_Name:
            if (field == 2) {
                card->givenname = strdup (p);
                if (!card->givenname)
                    return gpg_error (GPG_ERR_ENOMEM);
            }
            else if (field == 3) {
                card->surname = strdup (p);
                if (!card->surname)
                    return gpg_error (GPG_ERR_ENOMEM);
            }
            break;
        case CARD_Lang:
            if( field == 2 ) {
                card->lang = strdup (p);
                if (!card->lang)
                    return gpg_error (GPG_ERR_ENOMEM);
            }
            break;
        case CARD_Sex:
            if( field == 2 )
                card->sex = *p;
            break;

        case CARD_Url:
            if( field == 2 ) {
                if (card->url)
                    free (card->url);
                card->url = (char*)calloc (1, strlen (p) + 1);
                if( !card->url ) {
                    return gpg_error (GPG_ERR_ENOMEM);
                }
                gpg_decode_c_string (p, &card->url, strlen (p) + 1);
                if (!card->url)
                    return gpg_error (GPG_ERR_ENOMEM);
            }
            break;

        case CARD_Login:
            if (field == 2) {
                card->login = strdup (p);
                if (!card->login)
                    return gpg_error (GPG_ERR_ENOMEM);
            }
            break;

        case CARD_MaxPinLen:
            break;

        case CARD_SigCount:
            if (field == 2)
                card->sig_count = atol (p);
            break;

        case CARD_CAFpr:
            if (!p)
                break;
            if (field > 4 || field == 1)
                break;
            card->ca_fpr[field-2] = strdup (p);
            if (!card->ca_fpr[field-2])
                return gpg_error (GPG_ERR_ENOMEM);
            break;

        case CARD_Fpr:
            if (field > 4 || field == 1) /* max 3 fprs */
                break;
            card->fpr[field-2] = strdup (p);
            if (!card->fpr[field-2])
                return gpg_error (GPG_ERR_ENOMEM);
            break;

        case CARD_FprTime:
            if (field > 4 || field == 1)
                break;
            card->fpr_created[field-2] = strtoul (p, NULL, 10);
            card->fpr_created_str[field-2] = get_str_timestamp (strtoul (p, NULL, 10));
            if (!card->fpr_created_str[field-2])
                return gpg_error (GPG_ERR_ENOMEM);
            break;

        }
    }
    return 0;
}


/* Dummy handler to get the colon data and then quit. */
static gpgme_error_t
list_handler (void *opaque, gpgme_status_code_t code, const char *key, int fd)
{
    static int wait_card=0;
    GpgCardEdit *ce = (GpgCardEdit *)opaque;
    const char *s="";    
    DWORD n;
        

    if (code == GPGME_STATUS_CARDCTRL) {
        if (!strcmp (key, "5"))
            ce->setResult (GPG_CARDRES_NOCARD);
        else if (!strcmp (key, "1"))
            wait_card = 1;
    }
    if (wait_card && !strcmp (key, "cardctrl.insert_card.okay")) {
        n = MessageBox (NULL, _("Please insert the card and click OK or Cancel to abort."),
                        _("GPG Card Status"), MB_ICONQUESTION|MB_OKCANCEL);
        if (n == IDCANCEL) {
            ce->setResult (GPG_CARDRES_CANCEL);
            WriteFile ((HANDLE)fd, "c\n", 2, &n, NULL);
            wait_card = 0;
        }
    }
    if (!strcmp (key, "cardedit.prompt")) {
        s = "quit\n";
        if (!WriteFile ((HANDLE)fd, s, strlen (s), &n, NULL))
            log_debug ("list_handler: WriteFile() failed ec=%d\r\n", 
                       (int)GetLastError ());
        wait_card = 0;
    }
    return 0;
}


/* Construct an empty object. */
GpgCardEdit::GpgCardEdit (void)
{
    pin = NULL;
    pin_new = NULL;
    admin_pin = NULL;

    keygen.comment = NULL;
    keygen.email = NULL;
    keygen.name = NULL;
    keygen.expdate = NULL;
    keygen.key_fpr = NULL;

    type = 0;
    cnt = 0;
    cancel = 0;
    result = 0;

    gpgme_new (&ctx); /* XXX: check return code */
}

/* Release the object. */
GpgCardEdit::~GpgCardEdit (void)
{    
    if (keygen.name)
        free (keygen.name);
    if (keygen.comment)
        free (keygen.comment);
    if (keygen.email)
        free (keygen.email);
    if (keygen.expdate)
        free (keygen.expdate);
    if (keygen.key_fpr)
        free (keygen.key_fpr);
    gpgme_release (ctx);
}


/* Set the user PIN for the object to @pin. */
void
GpgCardEdit::setPIN (const char *pin)
{
    this->pin = pin;
}

/* Set the admin PIN for the object to @admin_pin. */
void
GpgCardEdit::setAdminPIN (const char *admin_pin)
{
    this->admin_pin = admin_pin;
}


/* Set the new user PIN for the object to @new_pin. */
void 
GpgCardEdit::setNewPIN (const char *new_pin)
{
    this->pin_new = new_pin;
}


/* Set the passphrase needed when generating a key to @pass. */
void
GpgCardEdit::setKeygenPassphrase (const char *pass)
{
    this->keygen.pass = pass;
}


/* Set the callback to @cb and the hook value to @cb_value. */
void
GpgCardEdit::setCallback (const char* (*cb)(int code, void *opaque), 
                          void *cb_value)
{
    this->cb_value = cb_value;
    this->card_cb = cb;
}


/* Read the information from the inserted card and return
   it in form of a card context @r_card.
   Return value: 0 on success. */
gpgme_error_t
GpgCardEdit::getCardStatus (gpg_card_t *r_card)
{
    gpgme_data_t out = NULL;
    gpgme_error_t err;
    gpg_card_t card=NULL;
    char buf[200];

    if (!r_card)
        return gpg_error (GPG_ERR_INV_ARG);

    err = gpg_card_new (&card);
    if (err)
        return err;

    err = gpgme_data_new (&out);
    if (err) {
        gpg_card_release (card);
        return err;
    }
    
    err = gpgme_op_card_edit  (ctx, NULL, list_handler, this, out);
    gpgme_data_rewind (out);
    if (err) {
        gpgme_data_release (out);
        gpg_card_release (card);
        return err;
    }
    if (getResult () & GPG_CARDRES_NOCARD ||
        getResult () & GPG_CARDRES_CANCEL) {
        gpg_card_release (card);
        gpgme_data_release (out);
        return gpg_error (GPG_ERR_CARD_NOT_PRESENT);
    }

    *r_card = card;
    while (gpg_data_readline (out, buf, sizeof (buf)-2) > 0) {
        err = statuscard_colon_handler (card, buf);
        if (err)
            break;
    }
    gpgme_data_release (out);

    return err;
}


/* Generate a key on a smart card with the following params:
   @flags: user specific params.
   @name: name of the key holder.
   @email: email of the key holder.
   @comment: optional comment.
   @valid: how long is the key valid in days.
   Return value: 0 on success. */
gpgme_error_t
GpgCardEdit::genKey (int flags, const char *name,
                     const char *email, const char *comment, long valid,
                     char **r_key_fpr)
{
    gpgme_error_t err;

    if (!name || !email)
        return gpg_error (GPG_ERR_INV_ARG);
    if (!this->keygen.pass)
        return gpg_error (GPG_ERR_INV_OBJ);

    type = GPG_EDITCARD_GENKEY;
    this->keygen.flags = flags;

    if (this->keygen.name)
        free (this->keygen.name);
    this->keygen.name = strdup (name);
    if (this->keygen.email)
        free (this->keygen.email);
    this->keygen.email = strdup (email);
    if (this->keygen.comment)
        free (this->keygen.comment);
    this->keygen.comment = comment? strdup (comment) : strdup ("");
    if (this->keygen.expdate)
        free (this->keygen.expdate);
    this->keygen.expdate = (char*)calloc (1, 16);
    if (this->keygen.expdate)
        sprintf (this->keygen.expdate, "%d", valid);

    if (!this->keygen.name || !this->keygen.email)
        return gpg_error (GPG_ERR_ENOMEM);

    err = gpg_card_edit (ctx, this);
    if (!err)
        err = getResult () & GPG_CARDRES_CANCEL? gpg_error (GPG_ERR_CANCELED) : 0;
    if (!err && r_key_fpr)
        *r_key_fpr = strdup (keygen.key_fpr? keygen.key_fpr : "");
    return err;
}


/* Change the pin from @pin to @pin_new.
   Return value: 0 on success. */
gpgme_error_t 
GpgCardEdit::changePIN (int type)
{
    gpgme_error_t err;

    if (!this->pin_new)
        return gpg_error (GPG_ERR_INV_ARG);

    if (!type) {
        if (this->pin && this->pin_new)
            this->type = GPG_EDITCARD_CHUPIN;
        else if (this->pin && this->admin_pin)
            this->type = GPG_EDITCARD_CHAPIN;
        else
            this->type = GPG_EDITCARD_UNBPIN;
    }
    else
        this->type = type;
    /* check if the user provided the needed PIN. */
    if ((this->type == GPG_EDITCARD_CHUPIN && !this->pin) ||
        (this->type == GPG_EDITCARD_CHAPIN && !this->admin_pin))
        return gpg_error (GPG_ERR_INV_ARG);

    err = gpg_card_edit (ctx, this);
    return err;
}


gpgme_error_t
GpgCardEdit::updateName (const char *given, const char *sur)
{
    gpgme_error_t err;

    if (!this->admin_pin)
        return gpg_error (GPG_ERR_INV_OBJ);

    this->type = GPG_EDITCARD_NAME;
    this->edit.surname = sur;
    this->edit.givenname = given;

    err = gpg_card_edit (ctx, this);
    return err;
}
    
gpgme_error_t
GpgCardEdit::updateURL (const char *url)
{
    gpgme_error_t err;

    if (!this->admin_pin)
        return gpg_error (GPG_ERR_INV_OBJ);

    type = GPG_EDITCARD_KEYURL;
    this->edit.keyurl = url;

    err = gpg_card_edit (ctx, this);
    return err;
}


gpgme_error_t
GpgCardEdit::updateLogin (const char *login)
{
    gpgme_error_t err;

    if (!this->admin_pin)
        return gpg_error (GPG_ERR_INV_OBJ);

    this->type = GPG_EDITCARD_LOGIN;
    this->edit.login = login;

    err = gpg_card_edit (ctx, this);
    return err;
}

gpgme_error_t
GpgCardEdit::updateSex (char sex)
{
    gpgme_error_t err;

    if (!this->admin_pin)
        return gpg_error (GPG_ERR_INV_OBJ);

    type = GPG_EDITCARD_SEX;
    this->edit.sex = sex;

    err = gpg_card_edit (ctx, this);
    return err;
}

gpgme_error_t
GpgCardEdit::updateLanguage (const char *lang)
{
    gpgme_error_t err;

    if (!this->admin_pin)
        return gpg_error (GPG_ERR_INV_OBJ);

    type = GPG_EDITCARD_LANG;
    this->edit.lang = lang;

    err = gpg_card_edit (ctx, this);
    return err;
}


/* Fetch the key specified by the url stored on the card.
   Return value: 0 on success. */
gpgme_error_t
GpgCardEdit::fetchKey (void)
{
    gpgme_error_t err = 0;

    if (!this->pin)
        return gpg_error (GPG_ERR_INV_OBJ);

    return 0;
}


/* Dispatcher for the various commands. @cmd is the card command ID
   and @arg1 and @arg2 the actual values for the command.
   Return value: 0 on success. */
gpgme_error_t
GpgCardEdit:: doCmd (int cmd, const char *arg1, const char *arg2)
{
    switch (cmd) {
    case GPG_EDITCARD_NAME:
        return updateName (arg1, arg2); /* given, surname */

    case GPG_EDITCARD_LANG:
        return updateLanguage (arg1); /* lang */

    case GPG_EDITCARD_SEX:
        return updateSex (*arg1); /* sex */

    case GPG_EDITCARD_KEYURL:
        return updateURL (arg1); /* url */

    case GPG_EDITCARD_LOGIN:
        return updateLogin (arg1); /* login */

    default:
        return gpg_error (GPG_ERR_INV_VALUE);
    }

    return 0;
}


/* Set the result for the executed operation.
   The values will be ORed. */
void
GpgCardEdit::setResult (int res)
{
    result |= res;
}


/* Return the result of the executed operation. */
int
GpgCardEdit::getResult (void)
{
    return result;
}


/* Reset the object state. */
void
GpgCardEdit::reset (void)
{
    cnt = 0;
}


/* Return card command type */
int
GpgCardEdit::getType (void)
{
    return type;
}
1	twoaday	23	/* wptCardEdit.cpp - OpenPGP editing interface
2			* Copyright (C) 2005 Timo Schulz
3			*
4			* This file is part of WinPT.
5			*
6			* WinPT is free software; you can redistribute it and/or modify
7			* it under the terms of the GNU General Public License as published by
8			* the Free Software Foundation; either version 2 of the License, or
9			* (at your option) any later version.
10			*
11			* WinPT is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14			* GNU General Public License for more details.
15			*
16			* You should have received a copy of the GNU General Public License
17			* along with WinPT; if not, write to the Free Software Foundation,
18			* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
19			*/
20
21			#include <windows.h>
22	twoaday	26	#include <time.h>
23	twoaday	25
24			#include "gpgme.h"
25	twoaday	26	#include "wptCard.h"
26	twoaday	23	#include "wptCardEdit.h"
27	twoaday	25	#include "wptGPG.h"
28	twoaday	26	#include "wptErrors.h"
29	twoaday	23
30			/* Create a new Smartcard context. */
31			static gpgme_error_t
32	twoaday	25	gpg_card_new (gpg_card_t *ret_card)
33	twoaday	23	{
34			gpg_card_t c;
35
36			if (!ret_card)
37			return gpg_error (GPG_ERR_INV_ARG);
38			*ret_card = NULL;
39			c = (gpg_card_t)calloc (1, sizeof *c);
40	twoaday	26	if (!c)
41	twoaday	23	return gpg_error (GPG_ERR_ENOMEM);
42			*ret_card = c;
43			return 0;
44			}
45
46
47			/* Release an existing Smartcard context. @card. */
48			void
49			gpg_card_release (gpg_card_t card)
50			{
51			int i;
52
53			if (!card)
54			return;
55			if (card->aid)
56			free (card->aid);
57			if (card->version)
58			free (card->version);
59			if (card->lang)
60			free (card->lang);
61			if (card->login)
62			free (card->login);
63			for (i=0; i < 3; i++) {
64			if (card->fpr[i])
65			free (card->fpr[i]);
66	twoaday	26	if (card->ca_fpr[i])
67			free (card->ca_fpr[i]);
68			if (card->fpr_created_str[i])
69			free (card->fpr_created_str[i]);
70	twoaday	23	}
71			if (card->surname)
72			free (card->surname);
73			if (card->givenname)
74			free (card->givenname);
75			if (card->serial)
76			free (card->serial);
77			if (card->vendor)
78			free (card->vendor);
79			if (card->url)
80			free (card->url);
81	twoaday	26	if (card->card_type)
82			free (card->card_type);
83	twoaday	23	free (card);
84
85			}
86
87
88	twoaday	26	/* Parse the timestamp @long_ts and return a string
89			representation of it (format: YYYY-DD-MM HH:MM:SS). */
90			static char*
91			get_str_timestamp (long long_ts)
92			{
93			struct tm *tm;
94			char p, fmt;
95
96			tm = localtime (&long_ts);
97			fmt = "%04d-%02d-%02d %02d:%02d:%02d";
98			p = (char*)calloc (1, strlen (fmt)+32);
99			if (!p)
100			abort ();
101			sprintf (p, fmt,
102			tm->tm_year+1900, tm->tm_mon+1, tm->tm_mday,
103			tm->tm_hour, tm->tm_min, tm->tm_sec);
104			return p;
105			}
106
107
108	twoaday	23	/* Colon handler for parsing the GPG card colon output. */
109			static gpgme_error_t
110	twoaday	26	statuscard_colon_handler (gpg_card_t card, char * line)
111	twoaday	23	{
112			enum rectype_t {
113			CARD_None = 0,
114			CARD_AID,
115			CARD_Version,
116			CARD_Vendor,
117			CARD_Serial,
118			CARD_Name,
119			CARD_Lang,
120			CARD_Sex,
121			CARD_Url,
122			CARD_Login,
123			CARD_MaxPinLen,
124			CARD_SigCount,
125	twoaday	26	CARD_CAFpr,
126			CARD_Fpr,
127			CARD_FprTime
128			};
129	twoaday	23	enum rectype_t rectype;
130			char p, pend;
131			int field = 0;
132
133			if (!line)
134			return gpg_error (GPG_ERR_EOF);
135
136	twoaday	26	for (p = line; p; p = pend) {
137	twoaday	23	field++;
138			pend = strchr (p, ':');
139	twoaday	26	if (pend)
140	twoaday	23	*pend++ = 0;
141
142			if (field == 1) {
143			if (!strcmp (p, "AID"))
144			rectype = CARD_AID;
145			else if( !strcmp( p, "version" ) )
146			rectype = CARD_Version;
147			else if( !strcmp( p, "vendor" ) )
148			rectype = CARD_Vendor;
149			else if( !strcmp( p, "serial" ) )
150			rectype = CARD_Serial;
151			else if( !strcmp( p, "name" ) )
152			rectype = CARD_Name;
153			else if( !strcmp( p, "lang" ) )
154			rectype = CARD_Lang;
155			else if( !strcmp( p, "sex" ) )
156			rectype = CARD_Sex;
157			else if( !strcmp( p, "url" ) )
158			rectype = CARD_Url;
159			else if( !strcmp( p, "login" ) )
160			rectype = CARD_Login;
161			else if( !strcmp( p, "maxpinlen" ) )
162			rectype = CARD_MaxPinLen;
163			else if( !strcmp( p, "sigcount" ) )
164			rectype = CARD_SigCount;
165	twoaday	26	else if (!strcmp (p, "cafpr"))
166			rectype = CARD_CAFpr;
167			else if (!strcmp (p, "fpr"))
168			rectype = CARD_Fpr;
169			else if (!strcmp (p, "fprtime"))
170			rectype = CARD_FprTime;
171	twoaday	23	else
172			rectype = CARD_None;
173			}
174	twoaday	26	switch (rectype) {
175	twoaday	23	case CARD_AID:
176	twoaday	26	if (field == 2) {
177	twoaday	23	card->aid = strdup (p);
178			if (!card->aid)
179			return gpg_error (GPG_ERR_ENOMEM);
180			}
181	twoaday	26	else if (field == 3) {
182			card->card_type = strdup (p);
183			if (!card->card_type)
184			return gpg_error (GPG_ERR_ENOMEM);
185			}
186	twoaday	23	break;
187	twoaday	26
188	twoaday	23	case CARD_Version:
189	twoaday	26	if (field == 2) {
190	twoaday	23	card->version = strdup (p);
191			if (!card->version)
192			return gpg_error (GPG_ERR_ENOMEM);
193			}
194			break;
195	twoaday	26
196	twoaday	23	case CARD_Vendor:
197	twoaday	26	if (field == 3) {
198			card->vendor = strdup (p);
199	twoaday	23	if (!card->vendor)
200			return gpg_error (GPG_ERR_ENOMEM);
201			}
202			break;
203	twoaday	26
204	twoaday	23	case CARD_Serial:
205	twoaday	26	if (field == 2) {
206			card->serial = strdup (p);
207	twoaday	23	if (!card->serial)
208			return gpg_error (GPG_ERR_ENOMEM);
209			}
210			break;
211			case CARD_Name:
212	twoaday	26	if (field == 2) {
213			card->givenname = strdup (p);
214	twoaday	23	if (!card->givenname)
215			return gpg_error (GPG_ERR_ENOMEM);
216			}
217	twoaday	26	else if (field == 3) {
218			card->surname = strdup (p);
219	twoaday	23	if (!card->surname)
220			return gpg_error (GPG_ERR_ENOMEM);
221			}
222			break;
223			case CARD_Lang:
224			if( field == 2 ) {
225	twoaday	26	card->lang = strdup (p);
226	twoaday	23	if (!card->lang)
227			return gpg_error (GPG_ERR_ENOMEM);
228			}
229			break;
230			case CARD_Sex:
231			if( field == 2 )
232			card->sex = *p;
233			break;
234	twoaday	26
235	twoaday	23	case CARD_Url:
236			if( field == 2 ) {
237			if (card->url)
238			free (card->url);
239	twoaday	24	card->url = (char*)calloc (1, strlen (p) + 1);
240	twoaday	23	if( !card->url ) {
241	twoaday	24	return gpg_error (GPG_ERR_ENOMEM);
242	twoaday	23	}
243	twoaday	24	gpg_decode_c_string (p, &card->url, strlen (p) + 1);
244	twoaday	23	if (!card->url)
245			return gpg_error (GPG_ERR_ENOMEM);
246			}
247			break;
248	twoaday	26
249	twoaday	23	case CARD_Login:
250	twoaday	26	if (field == 2) {
251	twoaday	23	card->login = strdup (p);
252			if (!card->login)
253			return gpg_error (GPG_ERR_ENOMEM);
254			}
255			break;
256	twoaday	26
257	twoaday	23	case CARD_MaxPinLen:
258			break;
259	twoaday	26
260	twoaday	23	case CARD_SigCount:
261	twoaday	26	if (field == 2)
262			card->sig_count = atol (p);
263	twoaday	23	break;
264	twoaday	26
265			case CARD_CAFpr:
266			if (!p)
267			break;
268			if (field > 4 \|\| field == 1)
269			break;
270			card->ca_fpr[field-2] = strdup (p);
271			if (!card->ca_fpr[field-2])
272			return gpg_error (GPG_ERR_ENOMEM);
273			break;
274
275	twoaday	23	case CARD_Fpr:
276	twoaday	26	if (field > 4 \|\| field == 1) /* max 3 fprs */
277			break;
278			card->fpr[field-2] = strdup (p);
279			if (!card->fpr[field-2])
280			return gpg_error (GPG_ERR_ENOMEM);
281	twoaday	23	break;
282	twoaday	26
283			case CARD_FprTime:
284			if (field > 4 \|\| field == 1)
285			break;
286			card->fpr_created[field-2] = strtoul (p, NULL, 10);
287			card->fpr_created_str[field-2] = get_str_timestamp (strtoul (p, NULL, 10));
288			if (!card->fpr_created_str[field-2])
289			return gpg_error (GPG_ERR_ENOMEM);
290			break;
291
292	twoaday	23	}
293			}
294			return 0;
295			}
296
297
298			/* Dummy handler to get the colon data and then quit. */
299			static gpgme_error_t
300			list_handler (void opaque, gpgme_status_code_t code, const char key, int fd)
301			{
302	twoaday	27	static int wait_card=0;
303	twoaday	26	GpgCardEdit ce = (GpgCardEdit )opaque;
304	twoaday	27	const char *s="";
305	twoaday	24	DWORD n;
306	twoaday	27
307	twoaday	24
308	twoaday	27	if (code == GPGME_STATUS_CARDCTRL) {
309			if (!strcmp (key, "5"))
310			ce->setResult (GPG_CARDRES_NOCARD);
311			else if (!strcmp (key, "1"))
312			wait_card = 1;
313			}
314			if (wait_card && !strcmp (key, "cardctrl.insert_card.okay")) {
315			n = MessageBox (NULL, _("Please insert the card and click OK or Cancel to abort."),
316			_("GPG Card Status"), MB_ICONQUESTION\|MB_OKCANCEL);
317			if (n == IDCANCEL) {
318			ce->setResult (GPG_CARDRES_CANCEL);
319			WriteFile ((HANDLE)fd, "c\n", 2, &n, NULL);
320			wait_card = 0;
321			}
322			}
323	twoaday	26	if (!strcmp (key, "cardedit.prompt")) {
324	twoaday	24	s = "quit\n";
325	twoaday	26	if (!WriteFile ((HANDLE)fd, s, strlen (s), &n, NULL))
326			log_debug ("list_handler: WriteFile() failed ec=%d\r\n",
327			(int)GetLastError ());
328	twoaday	27	wait_card = 0;
329	twoaday	24	}
330	twoaday	23	return 0;
331			}
332
333
334			/* Construct an empty object. */
335			GpgCardEdit::GpgCardEdit (void)
336			{
337			pin = NULL;
338			pin_new = NULL;
339			admin_pin = NULL;
340
341	twoaday	26	keygen.comment = NULL;
342			keygen.email = NULL;
343			keygen.name = NULL;
344			keygen.expdate = NULL;
345			keygen.key_fpr = NULL;
346
347	twoaday	23	type = 0;
348			cnt = 0;
349			cancel = 0;
350	twoaday	26	result = 0;
351	twoaday	23
352	twoaday	26	gpgme_new (&ctx); /* XXX: check return code */
353	twoaday	23	}
354
355			/* Release the object. */
356			GpgCardEdit::~GpgCardEdit (void)
357	twoaday	26	{
358			if (keygen.name)
359			free (keygen.name);
360			if (keygen.comment)
361			free (keygen.comment);
362			if (keygen.email)
363			free (keygen.email);
364			if (keygen.expdate)
365			free (keygen.expdate);
366			if (keygen.key_fpr)
367			free (keygen.key_fpr);
368			gpgme_release (ctx);
369	twoaday	23	}
370
371
372			/* Set the user PIN for the object to @pin. */
373			void
374			GpgCardEdit::setPIN (const char *pin)
375			{
376			this->pin = pin;
377			}
378
379			/* Set the admin PIN for the object to @admin_pin. */
380			void
381			GpgCardEdit::setAdminPIN (const char *admin_pin)
382			{
383			this->admin_pin = admin_pin;
384			}
385
386
387			/* Set the new user PIN for the object to @new_pin. */
388			void
389			GpgCardEdit::setNewPIN (const char *new_pin)
390			{
391			this->pin_new = new_pin;
392			}
393
394
395			/* Set the passphrase needed when generating a key to @pass. */
396			void
397			GpgCardEdit::setKeygenPassphrase (const char *pass)
398			{
399			this->keygen.pass = pass;
400			}
401
402
403			/* Set the callback to @cb and the hook value to @cb_value. */
404			void
405			GpgCardEdit::setCallback (const char* (cb)(int code, void opaque),
406			void *cb_value)
407			{
408			this->cb_value = cb_value;
409			this->card_cb = cb;
410			}
411
412
413			/* Read the information from the inserted card and return
414			it in form of a card context @r_card.
415			Return value: 0 on success. */
416			gpgme_error_t
417			GpgCardEdit::getCardStatus (gpg_card_t *r_card)
418			{
419	twoaday	26	gpgme_data_t out = NULL;
420	twoaday	23	gpgme_error_t err;
421	twoaday	26	gpg_card_t card=NULL;
422	twoaday	23	char buf[200];
423
424			if (!r_card)
425			return gpg_error (GPG_ERR_INV_ARG);
426
427	twoaday	26	err = gpg_card_new (&card);
428	twoaday	23	if (err)
429			return err;
430	twoaday	26
431			err = gpgme_data_new (&out);
432			if (err) {
433			gpg_card_release (card);
434			return err;
435			}
436	twoaday	23
437	twoaday	27	err = gpgme_op_card_edit (ctx, NULL, list_handler, this, out);
438	twoaday	26	gpgme_data_rewind (out);
439	twoaday	23	if (err) {
440	twoaday	26	gpgme_data_release (out);
441			gpg_card_release (card);
442	twoaday	23	return err;
443			}
444	twoaday	27	if (getResult () & GPG_CARDRES_NOCARD \|\|
445			getResult () & GPG_CARDRES_CANCEL) {
446	twoaday	26	gpg_card_release (card);
447			gpgme_data_release (out);
448	twoaday	27	return gpg_error (GPG_ERR_CARD_NOT_PRESENT);
449	twoaday	26	}
450	twoaday	23
451	twoaday	26	*r_card = card;
452			while (gpg_data_readline (out, buf, sizeof (buf)-2) > 0) {
453			err = statuscard_colon_handler (card, buf);
454			if (err)
455			break;
456			}
457			gpgme_data_release (out);
458	twoaday	23
459			return err;
460			}
461
462
463			/* Generate a key on a smart card with the following params:
464			@flags: user specific params.
465			@name: name of the key holder.
466			@email: email of the key holder.
467			@comment: optional comment.
468			@valid: how long is the key valid in days.
469			Return value: 0 on success. */
470			gpgme_error_t
471			GpgCardEdit::genKey (int flags, const char *name,
472	twoaday	26	const char email, const char comment, long valid,
473			char **r_key_fpr)
474	twoaday	23	{
475			gpgme_error_t err;
476
477			if (!name \|\| !email)
478			return gpg_error (GPG_ERR_INV_ARG);
479			if (!this->keygen.pass)
480			return gpg_error (GPG_ERR_INV_OBJ);
481
482			type = GPG_EDITCARD_GENKEY;
483			this->keygen.flags = flags;
484
485			if (this->keygen.name)
486			free (this->keygen.name);
487			this->keygen.name = strdup (name);
488			if (this->keygen.email)
489			free (this->keygen.email);
490			this->keygen.email = strdup (email);
491			if (this->keygen.comment)
492			free (this->keygen.comment);
493			this->keygen.comment = comment? strdup (comment) : strdup ("");
494			if (this->keygen.expdate)
495	twoaday	26	free (this->keygen.expdate);
496	twoaday	23	this->keygen.expdate = (char*)calloc (1, 16);
497			if (this->keygen.expdate)
498			sprintf (this->keygen.expdate, "%d", valid);
499
500	twoaday	26	if (!this->keygen.name \|\| !this->keygen.email)
501	twoaday	23	return gpg_error (GPG_ERR_ENOMEM);
502
503			err = gpg_card_edit (ctx, this);
504	twoaday	28	if (!err)
505			err = getResult () & GPG_CARDRES_CANCEL? gpg_error (GPG_ERR_CANCELED) : 0;
506	twoaday	26	if (!err && r_key_fpr)
507			*r_key_fpr = strdup (keygen.key_fpr? keygen.key_fpr : "");
508	twoaday	23	return err;
509			}
510
511
512			/* Change the pin from @pin to @pin_new.
513			Return value: 0 on success. */
514			gpgme_error_t
515	twoaday	26	GpgCardEdit::changePIN (int type)
516	twoaday	23	{
517			gpgme_error_t err;
518
519	twoaday	26	if (!this->pin_new)
520	twoaday	23	return gpg_error (GPG_ERR_INV_ARG);
521
522			if (!type) {
523			if (this->pin && this->pin_new)
524	twoaday	26	this->type = GPG_EDITCARD_CHUPIN;
525	twoaday	23	else if (this->pin && this->admin_pin)
526	twoaday	26	this->type = GPG_EDITCARD_CHAPIN;
527	twoaday	23	else
528	twoaday	26	this->type = GPG_EDITCARD_UNBPIN;
529	twoaday	23	}
530	twoaday	26	else
531			this->type = type;
532			/* check if the user provided the needed PIN. */
533			if ((this->type == GPG_EDITCARD_CHUPIN && !this->pin) \|\|
534			(this->type == GPG_EDITCARD_CHAPIN && !this->admin_pin))
535			return gpg_error (GPG_ERR_INV_ARG);
536	twoaday	23
537			err = gpg_card_edit (ctx, this);
538			return err;
539			}
540
541
542			gpgme_error_t
543			GpgCardEdit::updateName (const char given, const char sur)
544			{
545			gpgme_error_t err;
546
547	twoaday	26	if (!this->admin_pin)
548	twoaday	23	return gpg_error (GPG_ERR_INV_OBJ);
549
550	twoaday	26	this->type = GPG_EDITCARD_NAME;
551	twoaday	23	this->edit.surname = sur;
552			this->edit.givenname = given;
553
554			err = gpg_card_edit (ctx, this);
555			return err;
556			}
557
558			gpgme_error_t
559			GpgCardEdit::updateURL (const char *url)
560			{
561			gpgme_error_t err;
562
563	twoaday	26	if (!this->admin_pin)
564	twoaday	23	return gpg_error (GPG_ERR_INV_OBJ);
565
566	twoaday	26	type = GPG_EDITCARD_KEYURL;
567	twoaday	23	this->edit.keyurl = url;
568
569			err = gpg_card_edit (ctx, this);
570			return err;
571			}
572
573
574			gpgme_error_t
575			GpgCardEdit::updateLogin (const char *login)
576			{
577			gpgme_error_t err;
578
579	twoaday	26	if (!this->admin_pin)
580	twoaday	23	return gpg_error (GPG_ERR_INV_OBJ);
581
582	twoaday	26	this->type = GPG_EDITCARD_LOGIN;
583	twoaday	23	this->edit.login = login;
584
585			err = gpg_card_edit (ctx, this);
586			return err;
587			}
588
589			gpgme_error_t
590			GpgCardEdit::updateSex (char sex)
591			{
592			gpgme_error_t err;
593
594	twoaday	26	if (!this->admin_pin)
595	twoaday	23	return gpg_error (GPG_ERR_INV_OBJ);
596
597	twoaday	26	type = GPG_EDITCARD_SEX;
598	twoaday	23	this->edit.sex = sex;
599	twoaday	26
600	twoaday	23	err = gpg_card_edit (ctx, this);
601			return err;
602			}
603
604			gpgme_error_t
605			GpgCardEdit::updateLanguage (const char *lang)
606			{
607			gpgme_error_t err;
608
609	twoaday	26	if (!this->admin_pin)
610	twoaday	23	return gpg_error (GPG_ERR_INV_OBJ);
611
612	twoaday	26	type = GPG_EDITCARD_LANG;
613	twoaday	23	this->edit.lang = lang;
614	twoaday	26
615	twoaday	23	err = gpg_card_edit (ctx, this);
616			return err;
617			}
618
619
620			/* Fetch the key specified by the url stored on the card.
621			Return value: 0 on success. */
622			gpgme_error_t
623			GpgCardEdit::fetchKey (void)
624			{
625			gpgme_error_t err = 0;
626
627			if (!this->pin)
628			return gpg_error (GPG_ERR_INV_OBJ);
629
630			return 0;
631			}
632
633
634	twoaday	26	/* Dispatcher for the various commands. @cmd is the card command ID
635			and @arg1 and @arg2 the actual values for the command.
636			Return value: 0 on success. */
637	twoaday	23	gpgme_error_t
638			GpgCardEdit:: doCmd (int cmd, const char arg1, const char arg2)
639			{
640			switch (cmd) {
641			case GPG_EDITCARD_NAME:
642			return updateName (arg1, arg2); /* given, surname */
643
644			case GPG_EDITCARD_LANG:
645			return updateLanguage (arg1); /* lang */
646
647			case GPG_EDITCARD_SEX:
648			return updateSex (arg1); / sex */
649
650			case GPG_EDITCARD_KEYURL:
651			return updateURL (arg1); /* url */
652
653			case GPG_EDITCARD_LOGIN:
654			return updateLogin (arg1); /* login */
655	twoaday	26
656			default:
657			return gpg_error (GPG_ERR_INV_VALUE);
658	twoaday	23	}
659
660			return 0;
661			}
662	twoaday	26
663
664			/* Set the result for the executed operation.
665			The values will be ORed. */
666			void
667			GpgCardEdit::setResult (int res)
668			{
669			result \|= res;
670			}
671
672
673			/* Return the result of the executed operation. */
674			int
675			GpgCardEdit::getResult (void)
676			{
677			return result;
678			}
679
680
681			/* Reset the object state. */
682			void
683			GpgCardEdit::reset (void)
684			{
685			cnt = 0;
686			}
687	twoaday	28
688
689			/* Return card command type */
690			int
691			GpgCardEdit::getType (void)
692			{
693			return type;
694			}