trunk/Src/wptVerifyList.cpp

/* wptVerifyList.cpp - Listview for verifying signatures
 *      Copyright (C) 2001, 2002, 2003, 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 WinPT; if not, 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 <time.h>

#include "resource.h"
#include "wptTypes.h"
#include "wptGPG.h"
#include "wptCommonCtl.h"
#include "wptKeylist.h"
#include "wptNLS.h"
#include "wptContext.h"
#include "wptErrors.h"
#include "wptW32API.h"
#include "wptVersion.h"

/* Symbolic column IDs */
enum {
    VER_COL_NAME = 0,
    VER_COL_STAT = 1,
    VER_COL_SIGNED = 2,
    VER_COL_TRUST = 3,
    VER_COL_KEYID = 4,
    VER_COL_UID = 5
};


/* Extract the file name part out of the given path in @path.
   Return value: file part or NULL on error. */
static char*
extract_filename (const char *path)
{
    char * fname, *p;
    int n, len = 0;

    p = strrchr (path, '\\');
    if (!p)
        return m_strdup (path);
    n = p - path;
    len = strlen (path) - n;
    fname = new char[len+1];
    if (!fname)
        BUG (NULL);
    memcpy (fname, path+n+1, len);
    fname[len] = '\0';
    return fname;
}


/* String representaton of the time in @timestamp.
   Format YEAR-MON-DAY HOUR:MIN:SEC.
   Return value: time as formatted string. */
const char*
strtimestamp (long timestamp)
{
    static char timebuf[64];
    struct tm *warp;
    const char *dat;
    
    dat = get_locale_date (timestamp, timebuf, sizeof (timebuf)-1);
    warp = localtime (&timestamp);
    if (!dat)
        _snprintf (timebuf, sizeof (timebuf) - 1, 
                   "%04d-%02d-%02d %02d:%02d:%02d",
                    warp->tm_year+1900, warp->tm_mon+1, warp->tm_mday,  
                    warp->tm_hour, warp->tm_min, warp->tm_sec);
    else
        _snprintf (timebuf, sizeof (timebuf)-1,
                   "%s %02d:%02d:%02d", dat,
                   warp->tm_hour, warp->tm_min, warp->tm_sec);

    return timebuf;
}


/* Return human printable PKA status.
   If no pka information is available, return NULL. */
char*
get_pka_status (gpgme_signature_t sig)
{
    const char *fmt;
    char *pka_inf;

    if (sig->pka_trust == 0 || !sig->pka_address)
        return NULL;
    fmt = _("PKA: Verified signer's address is '%s'");
    pka_inf = new char[strlen (fmt)+strlen (sig->pka_address)+2];
    if (!pka_inf)
        BUG (NULL);     
    sprintf (pka_inf, fmt, sig->pka_address);
    return pka_inf;
}


/* Set additional signature information according to the
   signature @sig. If no info control is used, just return. */
void
verlist_set_additional_info (verlist_ctrl_t vlv, gpgme_signature_t sig)
{
    int used = 1;

    if (!vlv->infctl)
        return;

    if (sig->exp_timestamp > (DWORD)time (NULL))
        SendMessage (vlv->infctl, WM_SETTEXT, 0, (LPARAM)(char*)
                     _("The signature is expired!"));
    else if (sig->validity != GPGME_VALIDITY_MARGINAL &&
             sig->validity != GPGME_VALIDITY_FULL &&
             sig->validity != GPGME_VALIDITY_ULTIMATE) {
        SendMessage (vlv->infctl, WM_SETTEXT, 0, (LPARAM)(char*)
                     _("WARNING: This key is not certified with a trusted signature!\r\n"
                       "                   There is no indication that the signature belongs to the owner.\r\n"));
    }
    else {
        char *pka_info = get_pka_status (sig);
        if (pka_info != NULL) {
            SendMessage (vlv->infctl, WM_SETTEXT, 0, (LPARAM)(char*)pka_info);
            free_if_alloc (pka_info);
        }
        else {
            SendMessage (vlv->infctl, WM_SETTEXT, 0, (LPARAM)(char*)"");
            used = 0;
        }
    }    
    ShowWindow (vlv->infctl, used? SW_SHOW : SW_HIDE);
}


/* Build a verify signature list control. With the parent window
   from @ctrl and the mod given in @fm_mode. @lv contains the
   new control on success.
   Return value: 0 on success. */
void
verlist_build (verlist_ctrl_t *vlv, HWND ctrl, int fm_mode)
{
    struct listview_column_s verlist[] = {
        {0, 120, (char *)_("Name")},
        {1, 140, (char *)_("Status") },
        {2, 120, (char *)_("Signed") },
        {3,  58, (char *)_("Trust") },
        {4,  80, (char *)_("Key ID" )},
        {5, 160, (char *)_("User ID") },
        {6, 0, NULL}
    };
    HICON ico[2];
    struct verlist_ctrl_s *v;
    int j;
    
    v = new verlist_ctrl_s;
    if (!v)
        BUG (0);
    memset (v, 0, sizeof *v);
    listview_new (&v->lv, ctrl);
    for(j=0; verlist[j].fieldname; j++)
        listview_add_column (v->lv, &verlist[j]);
    if (!fm_mode)
        listview_set_column_width (v->lv, 0, 80);
    listview_set_ext_style (v->lv);
    ico[0] = LoadIcon (glob_hinst, (LPCTSTR)IDI_SIG_GOOD);
    ico[1] = LoadIcon (glob_hinst, (LPCTSTR)IDI_SIG_BAD);
    listview_set_image_list (v->lv, 16, 16, ico, 2);
    *vlv = v;
}


void
verlist_set_info_control (verlist_ctrl_t vlv, HWND infctl)
{
    vlv->infctl = infctl;
}


/* Delete the given verify control in @lv. */
void
verlist_delete (verlist_ctrl_t vlv)
{
    if (vlv) {
        listview_release (vlv->lv);
        free_if_alloc (vlv);
    }
}


/* Add the given signature in @sig to the verify control @lv.
   Return value: 0 on success. */
int
verlist_add_sig (verlist_ctrl_t vlv, gpgme_signature_t sig)
{
    listview_ctrl_t lv;
    struct winpt_key_s key;
    u32 key_attr;
    const char *attr;
    char keyid[32+1];
    int is_bad;
    
    is_bad = sig->summary & GPGME_SIGSUM_RED? 1 : 0;
    lv = vlv->lv;
    if (listview_add_item_image (lv, " ", is_bad))
        return WPTERR_GENERAL;
        
    listview_add_sub_item (lv, 0, VER_COL_NAME, "Clipboard");

    memset (&key, 0, sizeof (key));
    winpt_get_pubkey (sig->fpr, &key);
    if (sig->summary == 0 && gpg_err_code (sig->status) == GPG_ERR_NO_ERROR)
        attr = get_gpg_sigstat (GPGME_SIGSUM_GREEN);
    else
        attr = get_gpg_sigstat (sig->summary);
    if (attr)
        listview_add_sub_item (lv, 0, VER_COL_STAT, (char *)attr);
    
    attr = strtimestamp (sig->timestamp);
    listview_add_sub_item (lv, 0, VER_COL_SIGNED, (char *)attr);
    
    attr = _("Unknown");
    if (key.ctx) {
        key_attr = key.ext->uids->validity;
        attr = get_key_trust2 (NULL, key_attr, 0, 0);
    }
    listview_add_sub_item (lv, 0, VER_COL_TRUST, (char *)attr);
    
    attr = get_keyid_from_fpr (sig->fpr);       
    _snprintf (keyid, sizeof keyid -1, "0x%s", attr);
    listview_add_sub_item (lv, 0, VER_COL_KEYID, keyid);
    
    attr = key.ctx? key.ext->uids->name : _("user ID not found");
    listview_add_sub_item (lv, 0, VER_COL_UID, attr);

    if (vlv->infctl)
        verlist_set_additional_info (vlv, sig);
    return 0;
}


/* Add the given file signature in @log to the verify control @lv.
   Return value: 0 on success. */
int
verlist_add_sig_log (verlist_ctrl_t vlv, file_sig_ctx_t log)
{
    gpgme_signature_t sig = log->sig;
    struct listview_ctrl_s *lv;
    struct winpt_key_s key;
    const char *attr;
    char t[64], *name;

    lv = vlv->lv;
    if (listview_add_item (lv, "")) {
        log_debug ("verlist_add_sig_log: listview_add_item() failed.\n");
        return WPTERR_GENERAL;
    }

    memset (&key, 0, sizeof (key));
    winpt_get_pubkey (sig->fpr, &key);
    
    name = extract_filename (log->file);
    if (name)
        listview_add_sub_item (lv, 0, VER_COL_NAME, name);
    else
        listview_add_sub_item (lv, 0, VER_COL_NAME, log->file);
    free_if_alloc (name);
    
    if (sig->summary == 0 && gpg_err_code (sig->status) == GPG_ERR_NO_ERROR)
        attr = get_gpg_sigstat (GPGME_SIGSUM_GREEN);
    else
        attr = get_gpg_sigstat (sig->summary);
    if (attr)
        listview_add_sub_item (lv, 0, VER_COL_STAT, attr);

    if (sig->timestamp > 0)
        attr = strtimestamp (sig->timestamp);
    else
        attr = "No time";
    listview_add_sub_item (lv, 0, VER_COL_SIGNED, attr);
        
    if (key.ctx != NULL)
        attr = get_key_trust2 (NULL, key.ctx->uids->validity, 0, 0);
    else
        attr = _("Unknown");
    listview_add_sub_item (lv, 0, VER_COL_TRUST, attr);

    attr = get_keyid_from_fpr (sig->fpr);
    _snprintf (t, sizeof (t)-1, "0x%s", attr);
    listview_add_sub_item (lv, 0, VER_COL_KEYID, t);
    listview_add_sub_item (lv, 0, VER_COL_UID, 
                           log->user_id? 
                           log->user_id : _("user ID not found"));
    if (vlv->infctl)
        verlist_set_additional_info (vlv, sig);

    return 0;
}
1	werner	36	/* wptVerifyList.cpp - Listview for verifying signatures
2			* Copyright (C) 2001, 2002, 2003, 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
8			* modify it under the terms of the GNU General Public License
9			* as published by the Free Software Foundation; either version 2
10			* of the License, or (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 GNU
15			* General Public License for more details.
16			*
17			* You should have received a copy of the GNU General Public License
18			* along with WinPT; if not, write to the Free Software Foundation,
19			* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20			*/
21	twoaday	129
22	werner	36	#ifdef HAVE_CONFIG_H
23			#include <config.h>
24			#endif
25
26			#include <windows.h>
27			#include <time.h>
28
29	twoaday	228	#include "resource.h"
30	werner	36	#include "wptTypes.h"
31			#include "wptGPG.h"
32			#include "wptCommonCtl.h"
33			#include "wptKeylist.h"
34			#include "wptNLS.h"
35	twoaday	208	#include "wptContext.h"
36	werner	36	#include "wptErrors.h"
37			#include "wptW32API.h"
38	twoaday	228	#include "wptVersion.h"
39	werner	36
40	twoaday	193	/* Symbolic column IDs */
41			enum {
42			VER_COL_NAME = 0,
43			VER_COL_STAT = 1,
44			VER_COL_SIGNED = 2,
45			VER_COL_TRUST = 3,
46			VER_COL_KEYID = 4,
47			VER_COL_UID = 5
48			};
49
50
51	werner	36	/* Extract the file name part out of the given path in @path.
52			Return value: file part or NULL on error. */
53			static char*
54			extract_filename (const char *path)
55			{
56			char * fname, *p;
57			int n, len = 0;
58
59			p = strrchr (path, '\\');
60			if (!p)
61			return m_strdup (path);
62			n = p - path;
63			len = strlen (path) - n;
64			fname = new char[len+1];
65			if (!fname)
66			BUG (NULL);
67			memcpy (fname, path+n+1, len);
68			fname[len] = '\0';
69			return fname;
70			}
71
72
73			/* String representaton of the time in @timestamp.
74			Format YEAR-MON-DAY HOUR:MIN:SEC.
75			Return value: time as formatted string. */
76	twoaday	129	const char*
77	werner	36	strtimestamp (long timestamp)
78			{
79	twoaday	129	static char timebuf[64];
80	werner	36	struct tm *warp;
81	twoaday	129	const char *dat;
82	werner	36
83	twoaday	129	dat = get_locale_date (timestamp, timebuf, sizeof (timebuf)-1);
84	werner	36	warp = localtime (&timestamp);
85	twoaday	129	if (!dat)
86			_snprintf (timebuf, sizeof (timebuf) - 1,
87			"%04d-%02d-%02d %02d:%02d:%02d",
88			warp->tm_year+1900, warp->tm_mon+1, warp->tm_mday,
89			warp->tm_hour, warp->tm_min, warp->tm_sec);
90			else
91			_snprintf (timebuf, sizeof (timebuf)-1,
92			"%s %02d:%02d:%02d", dat,
93			warp->tm_hour, warp->tm_min, warp->tm_sec);
94
95	werner	36	return timebuf;
96			}
97
98
99	twoaday	219	/* Return human printable PKA status.
100			If no pka information is available, return NULL. */
101			char*
102			get_pka_status (gpgme_signature_t sig)
103			{
104			const char *fmt;
105			char *pka_inf;
106
107			if (sig->pka_trust == 0 \|\| !sig->pka_address)
108			return NULL;
109			fmt = _("PKA: Verified signer's address is '%s'");
110			pka_inf = new char[strlen (fmt)+strlen (sig->pka_address)+2];
111			if (!pka_inf)
112			BUG (NULL);
113			sprintf (pka_inf, fmt, sig->pka_address);
114			return pka_inf;
115			}
116
117
118			/* Set additional signature information according to the
119			signature @sig. If no info control is used, just return. */
120			void
121			verlist_set_additional_info (verlist_ctrl_t vlv, gpgme_signature_t sig)
122			{
123			int used = 1;
124
125			if (!vlv->infctl)
126			return;
127
128			if (sig->exp_timestamp > (DWORD)time (NULL))
129			SendMessage (vlv->infctl, WM_SETTEXT, 0, (LPARAM)(char*)
130			_("The signature is expired!"));
131			else if (sig->validity != GPGME_VALIDITY_MARGINAL &&
132			sig->validity != GPGME_VALIDITY_FULL &&
133			sig->validity != GPGME_VALIDITY_ULTIMATE) {
134			SendMessage (vlv->infctl, WM_SETTEXT, 0, (LPARAM)(char*)
135			_("WARNING: This key is not certified with a trusted signature!\r\n"
136			" There is no indication that the signature belongs to the owner.\r\n"));
137			}
138			else {
139			char *pka_info = get_pka_status (sig);
140			if (pka_info != NULL) {
141			SendMessage (vlv->infctl, WM_SETTEXT, 0, (LPARAM)(char*)pka_info);
142			free_if_alloc (pka_info);
143			}
144			else {
145			SendMessage (vlv->infctl, WM_SETTEXT, 0, (LPARAM)(char*)"");
146			used = 0;
147			}
148			}
149			ShowWindow (vlv->infctl, used? SW_SHOW : SW_HIDE);
150			}
151
152
153	werner	36	/* Build a verify signature list control. With the parent window
154			from @ctrl and the mod given in @fm_mode. @lv contains the
155			new control on success.
156			Return value: 0 on success. */
157	twoaday	219	void
158			verlist_build (verlist_ctrl_t *vlv, HWND ctrl, int fm_mode)
159			{
160	twoaday	193	struct listview_column_s verlist[] = {
161	twoaday	228	{0, 120, (char *)_("Name")},
162	twoaday	193	{1, 140, (char *)_("Status") },
163			{2, 120, (char *)_("Signed") },
164			{3, 58, (char *)_("Trust") },
165			{4, 80, (char *)_("Key ID" )},
166			{5, 160, (char *)_("User ID") },
167			{6, 0, NULL}
168	werner	36	};
169	twoaday	228	HICON ico[2];
170	twoaday	219	struct verlist_ctrl_s *v;
171	twoaday	193	int j;
172	werner	36
173	twoaday	219	v = new verlist_ctrl_s;
174			if (!v)
175			BUG (0);
176			memset (v, 0, sizeof *v);
177			listview_new (&v->lv, ctrl);
178	twoaday	193	for(j=0; verlist[j].fieldname; j++)
179	twoaday	219	listview_add_column (v->lv, &verlist[j]);
180	twoaday	193	if (!fm_mode)
181	twoaday	228	listview_set_column_width (v->lv, 0, 80);
182	twoaday	219	listview_set_ext_style (v->lv);
183	twoaday	228	ico[0] = LoadIcon (glob_hinst, (LPCTSTR)IDI_SIG_GOOD);
184			ico[1] = LoadIcon (glob_hinst, (LPCTSTR)IDI_SIG_BAD);
185			listview_set_image_list (v->lv, 16, 16, ico, 2);
186	twoaday	219	*vlv = v;
187	werner	36	}
188
189
190	twoaday	219	void
191			verlist_set_info_control (verlist_ctrl_t vlv, HWND infctl)
192			{
193			vlv->infctl = infctl;
194			}
195
196
197	werner	36	/* Delete the given verify control in @lv. */
198			void
199	twoaday	219	verlist_delete (verlist_ctrl_t vlv)
200	werner	36	{
201	twoaday	219	if (vlv) {
202			listview_release (vlv->lv);
203			free_if_alloc (vlv);
204	werner	36	}
205			}
206
207
208			/* Add the given signature in @sig to the verify control @lv.
209			Return value: 0 on success. */
210			int
211	twoaday	219	verlist_add_sig (verlist_ctrl_t vlv, gpgme_signature_t sig)
212	werner	36	{
213	twoaday	228	listview_ctrl_t lv;
214	twoaday	208	struct winpt_key_s key;
215	werner	36	u32 key_attr;
216	twoaday	205	const char *attr;
217	werner	36	char keyid[32+1];
218	twoaday	228	int is_bad;
219	werner	36
220	twoaday	228	is_bad = sig->summary & GPGME_SIGSUM_RED? 1 : 0;
221	twoaday	219	lv = vlv->lv;
222	twoaday	228	if (listview_add_item_image (lv, " ", is_bad))
223	werner	36	return WPTERR_GENERAL;
224	twoaday	193
225			listview_add_sub_item (lv, 0, VER_COL_NAME, "Clipboard");
226
227	twoaday	208	memset (&key, 0, sizeof (key));
228			winpt_get_pubkey (sig->fpr, &key);
229	twoaday	76	if (sig->summary == 0 && gpg_err_code (sig->status) == GPG_ERR_NO_ERROR)
230			attr = get_gpg_sigstat (GPGME_SIGSUM_GREEN);
231			else
232			attr = get_gpg_sigstat (sig->summary);
233			if (attr)
234	twoaday	193	listview_add_sub_item (lv, 0, VER_COL_STAT, (char *)attr);
235	werner	36
236			attr = strtimestamp (sig->timestamp);
237	twoaday	193	listview_add_sub_item (lv, 0, VER_COL_SIGNED, (char *)attr);
238	werner	36
239			attr = _("Unknown");
240	twoaday	208	if (key.ctx) {
241			key_attr = key.ext->uids->validity;
242	werner	36	attr = get_key_trust2 (NULL, key_attr, 0, 0);
243			}
244	twoaday	193	listview_add_sub_item (lv, 0, VER_COL_TRUST, (char *)attr);
245	werner	36
246	twoaday	205	attr = get_keyid_from_fpr (sig->fpr);
247			_snprintf (keyid, sizeof keyid -1, "0x%s", attr);
248			listview_add_sub_item (lv, 0, VER_COL_KEYID, keyid);
249	werner	36
250	twoaday	208	attr = key.ctx? key.ext->uids->name : _("user ID not found");
251	twoaday	204	listview_add_sub_item (lv, 0, VER_COL_UID, attr);
252	twoaday	219
253			if (vlv->infctl)
254			verlist_set_additional_info (vlv, sig);
255	werner	36	return 0;
256			}
257
258
259			/* Add the given file signature in @log to the verify control @lv.
260			Return value: 0 on success. */
261			int
262	twoaday	219	verlist_add_sig_log (verlist_ctrl_t vlv, file_sig_ctx_t log)
263	werner	36	{
264			gpgme_signature_t sig = log->sig;
265	twoaday	219	struct listview_ctrl_s *lv;
266	twoaday	208	struct winpt_key_s key;
267	twoaday	204	const char *attr;
268	werner	36	char t[64], *name;
269
270	twoaday	219	lv = vlv->lv;
271	twoaday	109	if (listview_add_item (lv, "")) {
272			log_debug ("verlist_add_sig_log: listview_add_item() failed.\n");
273	werner	36	return WPTERR_GENERAL;
274	twoaday	109	}
275	werner	36
276	twoaday	208	memset (&key, 0, sizeof (key));
277			winpt_get_pubkey (sig->fpr, &key);
278	werner	36
279			name = extract_filename (log->file);
280			if (name)
281	twoaday	193	listview_add_sub_item (lv, 0, VER_COL_NAME, name);
282	werner	36	else
283	twoaday	193	listview_add_sub_item (lv, 0, VER_COL_NAME, log->file);
284	werner	36	free_if_alloc (name);
285	twoaday	109
286	twoaday	76	if (sig->summary == 0 && gpg_err_code (sig->status) == GPG_ERR_NO_ERROR)
287			attr = get_gpg_sigstat (GPGME_SIGSUM_GREEN);
288			else
289			attr = get_gpg_sigstat (sig->summary);
290	werner	36	if (attr)
291	twoaday	193	listview_add_sub_item (lv, 0, VER_COL_STAT, attr);
292	werner	36
293	twoaday	193	if (sig->timestamp > 0)
294	werner	36	attr = strtimestamp (sig->timestamp);
295			else
296	twoaday	193	attr = "No time";
297			listview_add_sub_item (lv, 0, VER_COL_SIGNED, attr);
298
299	twoaday	208	if (key.ctx != NULL)
300			attr = get_key_trust2 (NULL, key.ctx->uids->validity, 0, 0);
301	twoaday	193	else
302			attr = _("Unknown");
303			listview_add_sub_item (lv, 0, VER_COL_TRUST, attr);
304	twoaday	205
305			attr = get_keyid_from_fpr (sig->fpr);
306			_snprintf (t, sizeof (t)-1, "0x%s", attr);
307	twoaday	193	listview_add_sub_item (lv, 0, VER_COL_KEYID, t);
308	twoaday	204	listview_add_sub_item (lv, 0, VER_COL_UID,
309			log->user_id?
310			log->user_id : _("user ID not found"));
311	twoaday	219	if (vlv->infctl)
312			verlist_set_additional_info (vlv, sig);
313
314	werner	36	return 0;
315			}