trunk/Src/wptClipSignDlg.cpp

/* wptClipSignDlg.cpp - WinPT clipboard sign dialog
 *      Copyright (C) 2000, 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 <commctrl.h>

#include "resource.h"
#include "wptTypes.h"
#include "wptAgent.h"
#include "wptNLS.h"
#include "wptCrypto.h"
#include "wptGPG.h"
#include "wptCommonCtl.h"
#include "wptRegistry.h"
#include "wptKeylist.h"
#include "wptErrors.h"
#include "wptW32API.h"
#include "wptVersion.h"
#include "wptContext.h" /* for passphrase_s */
#include "wptDlgs.h"


/* Sign the clipboard contents with the key @keyid and wrap
   text lines to @wraplen (0 disable line wrapping).
   Return value: 0 on success. */
gpgme_error_t
gpg_clip_sign (gpgme_ctx_t ctx, const char *keyid, int wraplen)
{
    gpgme_error_t err;
    gpgme_data_t plain = NULL;
    gpgme_data_t sig = NULL;
    gpgme_key_t key = NULL;
    
    if (!keyid)
        return gpg_error (GPG_ERR_INV_ARG);
    
    gpgme_set_armor (ctx, 1);
    
    err = gpg_data_new_from_clipboard (&plain, wraplen);
    if (err)
        return err;

    get_pubkey (keyid, &key);
    if (key)
        err = gpgme_signers_add (ctx, key);
    else {
        err = gpg_error (GPG_ERR_NO_PUBKEY);
        goto leave;
    }
    err = gpgme_data_new (&sig);
    if (err)
        goto leave;     
    err = gpgme_op_sign (ctx, plain, sig, GPGME_SIG_MODE_CLEAR);
    if (err)
        goto leave;
    
    gpg_data_release_and_set_clipboard (sig, 1);
    sig = NULL;    

leave:
    if (plain)
        gpgme_data_release (plain);
    if (sig)
        gpgme_data_release (sig);
    return err;
}


/* This function is used when only one secret key is available.
 * it doesn't make sense to offer a dialog for this case.
 */
void
one_key_proc (HWND dlg)
{
    char * signer;
    gpgme_ctx_t ctx;
    gpgme_error_t err;
    passphrase_cb_s pwd;
    int rc = 0;
    int n = reg_prefs.word_wrap;
    
    signer = get_gnupg_default_key ();
    if (!signer) {
        msg_box (dlg, _("Could not get default key."), _("Signing"), MB_ERR);
        return;
    }
    
    err = gpgme_new (&ctx);
    if (err)
        BUG (dlg);

    set_gpg_passphrase_cb (&pwd, ctx, GPG_CMD_SIGN, dlg, _("Signing"));
    err = gpg_clip_sign (ctx, signer, n );
    wipememory (pwd.pwd, sizeof (pwd.pwd));
    if (gpgme_err_code (err) == GPG_ERR_BAD_PASSPHRASE)
        agent_del_cache (pwd.keyid);
    if (err)
        msg_box (dlg, gpgme_strerror (err), _("Signing"), MB_ERR);
    else
        show_msg (dlg, 1500, _("GnuPG Status: Finished"));
    gpgme_release (ctx);
    free_if_alloc (signer);
}


/* Dialog box procedure for clipboard signing. */
BOOL CALLBACK 
clip_sign_dlg_proc (HWND dlg, UINT msg, WPARAM wparam, LPARAM lparam)
{       
    static listview_ctrl_t lv = NULL;
    gpg_keycache_t kc, sec_kc;
    gpgme_ctx_t ctx;
    gpgme_error_t err;
    passphrase_cb_s pwd;
    int lv_idx = 0;
    int rc = 0, no_signer = 0;
    char * signer = NULL;
    
    switch( msg ) {
    case WM_INITDIALOG:
        SetWindowText (dlg, _("Signing"));

        kc = keycache_get_ctx (KEYCACHE_PUB);
        if (!kc)
            BUG( NULL );
        sec_kc = keycache_get_ctx (KEYCACHE_PRV);
        if (!sec_kc)
            BUG (dlg);
        if (gpg_keycache_get_size (sec_kc) == 1) {
            one_key_proc (dlg);
            EndDialog (dlg, TRUE);
            return FALSE;
        }
        lv = keylist_load (GetDlgItem (dlg, IDC_SIGN_KEYLIST), kc, sec_kc,
                           KEYLIST_SIGN, KEY_SORT_USERID);
        center_window (dlg, NULL);
        SetForegroundWindow (dlg);
        set_active_window (dlg);
        return FALSE;   
        
    case WM_DESTROY:
        reset_active_window ();
        if (lv) {
            keylist_delete (lv);
            lv = NULL;
        }
        return FALSE;
        
    case WM_NOTIFY:
        NMHDR * notify;
        notify = (NMHDR *)lparam;
        if( notify && notify->code == NM_DBLCLK
            && notify->idFrom == IDC_SIGN_KEYLIST )
            PostMessage( dlg, WM_COMMAND, MAKEWPARAM(IDOK, 0), NULL );
        return TRUE;
        
    case WM_SYSCOMMAND:
        if( LOWORD (wparam) == SC_CLOSE )
            EndDialog(dlg, TRUE);
        return FALSE;
        
    case WM_COMMAND:
        switch (LOWORD (wparam)) {
        case IDOK:
            signer = get_gnupg_default_key ();
            if (!signer) {
                msg_box( dlg, _("Could not get default key."), _("Signing"), MB_ERR );
                return FALSE;
            }
            if (listview_count_items (lv, 0) == 1) {
                listview_get_item_text (lv, 0, 1, signer, sizeof signer-1);
                no_signer = 0;
            }
            else if ((lv_idx = listview_get_curr_pos (lv)) == -1) {
                rc = log_box (_("Signing"), MB_YESNO,
                              _("No key was chosen.\nUse the GPG default key '%s'?"),
                              signer);
                if (rc == IDNO) {
                    free_if_alloc (signer);
                    return FALSE;
                }
                no_signer = 1;
            }
            if (!no_signer) {
                free_if_alloc (signer);
                signer = new char[32+1];
                if (!signer)
                    BUG (NULL);
                listview_get_item_text (lv, lv_idx, 1, signer, 32);
            }
            err = gpgme_new (&ctx);
            if (err)
                BUG (dlg);
            set_gpg_passphrase_cb (&pwd, ctx, GPG_CMD_SIGN, dlg, _("Signing"));
            err = gpg_clip_sign (ctx, signer, reg_prefs.word_wrap);
            free_if_alloc (signer);
            release_gpg_passphrase_cb (&pwd);

            if (pwd.cancel && gpgme_err_code(err) == GPG_ERR_BAD_PASSPHRASE) {
                /* The user hit the cancel button or bad passphrase */
                gpgme_release (ctx);
                EndDialog (dlg, TRUE);
                return TRUE;
            }
            if (err) {
                msg_box (dlg, gpgme_strerror (err), _("Signing"), MB_ERR);
                gpgme_release (ctx);
                return FALSE;
            }
            else                     
                show_msg( dlg, 1500, _("GnuPG Status: Finished") );
            gpgme_release (ctx);
            EndDialog (dlg, TRUE);
            return TRUE;
            
        case IDCANCEL:
            EndDialog (dlg, FALSE);
            return FALSE;
        }
        break;
    }
    
    return FALSE;
}

1	werner	36	/* wptClipSignDlg.cpp - WinPT clipboard sign dialog
2			* Copyright (C) 2000, 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 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 WinPT; if not, write to the Free Software Foundation,
19			* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
20			*/
21	twoaday	23
22	werner	36	#ifdef HAVE_CONFIG_H
23			#include <config.h>
24			#endif
25
26			#include <windows.h>
27			#include <commctrl.h>
28
29	werner	47	#include "resource.h"
30	werner	36	#include "wptTypes.h"
31			#include "wptAgent.h"
32			#include "wptNLS.h"
33			#include "wptCrypto.h"
34			#include "wptGPG.h"
35			#include "wptCommonCtl.h"
36			#include "wptRegistry.h"
37			#include "wptKeylist.h"
38			#include "wptErrors.h"
39			#include "wptW32API.h"
40			#include "wptVersion.h"
41			#include "wptContext.h" /* for passphrase_s */
42			#include "wptDlgs.h"
43
44
45			/* Sign the clipboard contents with the key @keyid and wrap
46			text lines to @wraplen (0 disable line wrapping).
47			Return value: 0 on success. */
48			gpgme_error_t
49			gpg_clip_sign (gpgme_ctx_t ctx, const char *keyid, int wraplen)
50			{
51			gpgme_error_t err;
52			gpgme_data_t plain = NULL;
53			gpgme_data_t sig = NULL;
54			gpgme_key_t key = NULL;
55
56			if (!keyid)
57			return gpg_error (GPG_ERR_INV_ARG);
58
59			gpgme_set_armor (ctx, 1);
60
61			err = gpg_data_new_from_clipboard (&plain, wraplen);
62			if (err)
63			return err;
64
65			get_pubkey (keyid, &key);
66			if (key)
67			err = gpgme_signers_add (ctx, key);
68			else {
69			err = gpg_error (GPG_ERR_NO_PUBKEY);
70			goto leave;
71			}
72			err = gpgme_data_new (&sig);
73			if (err)
74			goto leave;
75			err = gpgme_op_sign (ctx, plain, sig, GPGME_SIG_MODE_CLEAR);
76			if (err)
77			goto leave;
78
79			gpg_data_release_and_set_clipboard (sig, 1);
80			sig = NULL;
81
82			leave:
83			if (plain)
84			gpgme_data_release (plain);
85			if (sig)
86			gpgme_data_release (sig);
87			return err;
88			}
89
90
91			/* This function is used when only one secret key is available.
92			* it doesn't make sense to offer a dialog for this case.
93			*/
94			void
95			one_key_proc (HWND dlg)
96			{
97			char * signer;
98			gpgme_ctx_t ctx;
99			gpgme_error_t err;
100			passphrase_cb_s pwd;
101			int rc = 0;
102			int n = reg_prefs.word_wrap;
103
104			signer = get_gnupg_default_key ();
105			if (!signer) {
106			msg_box (dlg, _("Could not get default key."), _("Signing"), MB_ERR);
107			return;
108			}
109
110			err = gpgme_new (&ctx);
111			if (err)
112			BUG (dlg);
113
114			set_gpg_passphrase_cb (&pwd, ctx, GPG_CMD_SIGN, dlg, _("Signing"));
115			err = gpg_clip_sign (ctx, signer, n );
116			wipememory (pwd.pwd, sizeof (pwd.pwd));
117			if (gpgme_err_code (err) == GPG_ERR_BAD_PASSPHRASE)
118			agent_del_cache (pwd.keyid);
119			if (err)
120			msg_box (dlg, gpgme_strerror (err), _("Signing"), MB_ERR);
121			else
122			show_msg (dlg, 1500, _("GnuPG Status: Finished"));
123			gpgme_release (ctx);
124			free_if_alloc (signer);
125			}
126
127
128			/* Dialog box procedure for clipboard signing. */
129			BOOL CALLBACK
130			clip_sign_dlg_proc (HWND dlg, UINT msg, WPARAM wparam, LPARAM lparam)
131			{
132			static listview_ctrl_t lv = NULL;
133			gpg_keycache_t kc, sec_kc;
134			gpgme_ctx_t ctx;
135			gpgme_error_t err;
136			passphrase_cb_s pwd;
137			int lv_idx = 0;
138			int rc = 0, no_signer = 0;
139			char * signer = NULL;
140
141			switch( msg ) {
142			case WM_INITDIALOG:
143			SetWindowText (dlg, _("Signing"));
144
145			kc = keycache_get_ctx (KEYCACHE_PUB);
146			if (!kc)
147			BUG( NULL );
148			sec_kc = keycache_get_ctx (KEYCACHE_PRV);
149			if (!sec_kc)
150			BUG (dlg);
151			if (gpg_keycache_get_size (sec_kc) == 1) {
152			one_key_proc (dlg);
153			EndDialog (dlg, TRUE);
154			return FALSE;
155			}
156			lv = keylist_load (GetDlgItem (dlg, IDC_SIGN_KEYLIST), kc, sec_kc,
157			KEYLIST_SIGN, KEY_SORT_USERID);
158			center_window (dlg, NULL);
159			SetForegroundWindow (dlg);
160			set_active_window (dlg);
161			return FALSE;
162
163			case WM_DESTROY:
164			reset_active_window ();
165			if (lv) {
166			keylist_delete (lv);
167			lv = NULL;
168			}
169			return FALSE;
170
171			case WM_NOTIFY:
172			NMHDR * notify;
173			notify = (NMHDR *)lparam;
174			if( notify && notify->code == NM_DBLCLK
175			&& notify->idFrom == IDC_SIGN_KEYLIST )
176			PostMessage( dlg, WM_COMMAND, MAKEWPARAM(IDOK, 0), NULL );
177			return TRUE;
178
179			case WM_SYSCOMMAND:
180			if( LOWORD (wparam) == SC_CLOSE )
181			EndDialog(dlg, TRUE);
182			return FALSE;
183
184			case WM_COMMAND:
185			switch (LOWORD (wparam)) {
186			case IDOK:
187			signer = get_gnupg_default_key ();
188			if (!signer) {
189			msg_box( dlg, _("Could not get default key."), _("Signing"), MB_ERR );
190			return FALSE;
191			}
192			if (listview_count_items (lv, 0) == 1) {
193			listview_get_item_text (lv, 0, 1, signer, sizeof signer-1);
194			no_signer = 0;
195			}
196			else if ((lv_idx = listview_get_curr_pos (lv)) == -1) {
197			rc = log_box (_("Signing"), MB_YESNO,
198			_("No key was chosen.\nUse the GPG default key '%s'?"),
199			signer);
200			if (rc == IDNO) {
201			free_if_alloc (signer);
202			return FALSE;
203			}
204			no_signer = 1;
205			}
206			if (!no_signer) {
207			free_if_alloc (signer);
208			signer = new char[32+1];
209			if (!signer)
210			BUG (NULL);
211			listview_get_item_text (lv, lv_idx, 1, signer, 32);
212			}
213			err = gpgme_new (&ctx);
214			if (err)
215			BUG (dlg);
216			set_gpg_passphrase_cb (&pwd, ctx, GPG_CMD_SIGN, dlg, _("Signing"));
217			err = gpg_clip_sign (ctx, signer, reg_prefs.word_wrap);
218			free_if_alloc (signer);
219			release_gpg_passphrase_cb (&pwd);
220
221			if (pwd.cancel && gpgme_err_code(err) == GPG_ERR_BAD_PASSPHRASE) {
222			/* The user hit the cancel button or bad passphrase */
223			gpgme_release (ctx);
224			EndDialog (dlg, TRUE);
225			return TRUE;
226			}
227			if (err) {
228			msg_box (dlg, gpgme_strerror (err), _("Signing"), MB_ERR);
229			gpgme_release (ctx);
230			return FALSE;
231			}
232			else
233			show_msg( dlg, 1500, _("GnuPG Status: Finished") );
234			gpgme_release (ctx);
235			EndDialog (dlg, TRUE);
236			return TRUE;
237
238			case IDCANCEL:
239			EndDialog (dlg, FALSE);
240			return FALSE;
241			}
242			break;
243			}
244
245			return FALSE;
246			}
247