trunk/Src/wptClipSignEncDlg.cpp

/* wptSignEncDlg.cpp - Sign & encrypt dialog
 *      Copyright (C) 2000-2005 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 <commctrl.h>

#include "../resource.h"
#include "wptErrors.h"
#include "wptAgent.h"
#include "wptCrypto.h"
#include "wptGPG.h"
#include "wptCommonCtl.h"
#include "wptKeylist.h"
#include "wptTypes.h"
#include "wptNLS.h"
#include "wptContext.h" /* for passphrase_s */
#include "wptDlgs.h"
#include "wptW32API.h"
#include "wptKeylist.h"
#include "wptVersion.h"
#include "wptGPG.h"
#include "wptRegistry.h"
#include "wptUTF8.h"


/* Encrypt the clipboard data with the recipients from @rset and
   additionally sign the data before @signer as the keyID.
   Return value: 0 on success. */
gpgme_error_t
gpg_clip_sign_encrypt (gpgme_ctx_t ctx, const char *signer, 
                       gpgme_key_t *rset, int opts)
{
    gpgme_error_t err;
    gpgme_data_t plain = NULL;
    gpgme_data_t ciph = NULL;
    gpgme_key_t key = NULL;
 
    if (!signer)
        return gpg_error (GPG_ERR_INV_ARG);
    if (get_pubkey (signer, &key))
        return gpg_error (GPG_ERR_NO_PUBKEY);

    gpgme_set_armor (ctx, 1);
    
    err = gpg_data_new_from_clipboard (&plain, 0);
    if (err)
        goto leave;   
    err = gpgme_data_new (&ciph);
    if (err)
        goto leave;
    err = gpgme_signers_add (ctx, key);
    if (err)
        goto leave;

    err = gpgme_op_encrypt_sign (ctx, rset, 
                                 opts? GPGME_ENCRYPT_ALWAYS_TRUST : (gpgme_encrypt_flags_t)0,
                                 plain, ciph);
    if (err)
        goto leave;

    gpg_data_release_and_set_clipboard (ciph, 1);
    ciph = NULL;

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


/* Dialog procedure for clipboard sign + encrypt. */
BOOL CALLBACK 
clip_signenc_dlg_proc (HWND dlg, UINT msg, WPARAM wparam, LPARAM lparam)
{
    static listview_ctrl_t lv = NULL;
    static keylist_t list = NULL;
    static int enable = 0;
    gpg_keycache_t kc;
    gpgme_key_t *rset;
    gpgme_error_t err;
    gpgme_ctx_t ctx;
    passphrase_cb_s pwd;
    char *signer = NULL;
    int force_trust = 0, opt = 0;
    int kmode = reg_prefs.keylist_mode? KEYLIST_ENCRYPT_MIN : KEYLIST_ENCRYPT;
    int n;
    
    switch( msg ) {
    case WM_INITDIALOG:
        enable = 0;
    #ifndef LANG_DE
        SetWindowText( dlg, _("Sign & Encrypt") );
    #endif
        kc = keycache_get_ctx( KEYCACHE_PUB );
        if( !kc )
            BUG( NULL );
        lv = keylist_load( GetDlgItem( dlg, IDC_SIGNENC_KEYLIST ), 
                           kc, NULL, kmode, KEY_SORT_USERID);
        seclist_init( dlg, IDC_SIGNENC_SECLIST, KEYLIST_FLAG_SHORT, &list );
        center_window (dlg, NULL);
        set_active_window (dlg);
        EnableWindow (GetDlgItem (dlg, IDC_SIGNENC_SECLIST), FALSE);
        SetDlgItemText (dlg, IDC_SIGNENC_SELKEY, _("Select key for signing"));
        SetDlgItemText (dlg, IDC_SIGNENC_SECLISTINF, _("Signing key:"));
        SetForegroundWindow (dlg);
        return TRUE;
        
    case WM_DESTROY:
        seclist_destroy (&list);
        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_SIGNENC_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:
        /* fixme: the enable seems to have a sync problem */
        if( HIWORD( wparam ) == BN_CLICKED 
            && LOWORD( wparam ) == IDC_SIGNENC_SELKEY ) {
            enable ^= 1;
            EnableWindow( GetDlgItem( dlg, IDC_SIGNENC_SECLIST ), enable? TRUE : FALSE );
        }
        switch( LOWORD( wparam ) ) {
        case IDOK:
            rset = keylist_get_recipients( lv, &force_trust, &n );
            if (!n) {
                msg_box( dlg, _("You must select at least one key."), _("Sign & Encrypt"), MB_ERR );
                return FALSE;
            }
            if( IsDlgButtonChecked( dlg, IDC_SIGNENC_SELKEY ) ) {
                gpgme_key_t key;
                const char * s;

                if( seclist_select_key( dlg, IDC_SIGNENC_SECLIST, &key ) ) {
                    msg_box( dlg, _("No key was selected."), _("Signing"), MB_ERR );
                    return FALSE;
                }
                s = key->subkeys->keyid;
                if (s)
                    signer = m_strdup(s+8);
            }
            else {
                signer = get_gnupg_default_key ();
                if (!signer) {
                    msg_box (dlg, _("Could not get default key."), _("Signing"), MB_ERR);
                    return FALSE;
                }
            }

            err = gpgme_new (&ctx);
            if (err)
                BUG (NULL);
            set_gpg_passphrase_cb (&pwd, ctx, GPG_CMD_SIGN, dlg, _("Sign & Encrypt"));
            err = gpg_clip_sign_encrypt (ctx, signer, rset, force_trust);
            release_gpg_passphrase_cb (&pwd);
            free (rset);
            free_if_alloc (signer);
            gpgme_release (ctx);
            if (gpgme_err_code (err) ==  GPG_ERR_BAD_PASSPHRASE)
                agent_del_cache (pwd.keyid);
            if (err) {
                msg_box (dlg, gpgme_strerror (err), _("Sign & Encrypt"), MB_ERR );
                return FALSE;
            }
            show_msg (dlg, 1500, _("GnuPG Status: Finished"));
            EndDialog (dlg, TRUE);
            return TRUE;
            
        case IDCANCEL:
            EndDialog( dlg, FALSE );
            return FALSE;
        }
        break;
    }
    
    return FALSE;
}
1	/* wptSignEncDlg.cpp - Sign & encrypt dialog
2	* Copyright (C) 2000-2005 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	#include <commctrl.h>
23
24	#include "../resource.h"
25	#include "wptErrors.h"
26	#include "wptAgent.h"
27	#include "wptCrypto.h"
28	#include "wptGPG.h"
29	#include "wptCommonCtl.h"
30	#include "wptKeylist.h"
31	#include "wptTypes.h"
32	#include "wptNLS.h"
33	#include "wptContext.h" /* for passphrase_s */
34	#include "wptDlgs.h"
35	#include "wptW32API.h"
36	#include "wptKeylist.h"
37	#include "wptVersion.h"
38	#include "wptGPG.h"
39	#include "wptRegistry.h"
40	#include "wptUTF8.h"
41
42
43	/* Encrypt the clipboard data with the recipients from @rset and
44	additionally sign the data before @signer as the keyID.
45	Return value: 0 on success. */
46	gpgme_error_t
47	gpg_clip_sign_encrypt (gpgme_ctx_t ctx, const char *signer,
48	gpgme_key_t *rset, int opts)
49	{
50	gpgme_error_t err;
51	gpgme_data_t plain = NULL;
52	gpgme_data_t ciph = NULL;
53	gpgme_key_t key = NULL;
54
55	if (!signer)
56	return gpg_error (GPG_ERR_INV_ARG);
57	if (get_pubkey (signer, &key))
58	return gpg_error (GPG_ERR_NO_PUBKEY);
59
60	gpgme_set_armor (ctx, 1);
61
62	err = gpg_data_new_from_clipboard (&plain, 0);
63	if (err)
64	goto leave;
65	err = gpgme_data_new (&ciph);
66	if (err)
67	goto leave;
68	err = gpgme_signers_add (ctx, key);
69	if (err)
70	goto leave;
71
72	err = gpgme_op_encrypt_sign (ctx, rset,
73	opts? GPGME_ENCRYPT_ALWAYS_TRUST : (gpgme_encrypt_flags_t)0,
74	plain, ciph);
75	if (err)
76	goto leave;
77
78	gpg_data_release_and_set_clipboard (ciph, 1);
79	ciph = NULL;
80
81	leave:
82	if (plain)
83	gpgme_data_release (plain);
84	if (ciph)
85	gpgme_data_release (ciph);
86	return err;
87	}
88
89
90	/* Dialog procedure for clipboard sign + encrypt. */
91	BOOL CALLBACK
92	clip_signenc_dlg_proc (HWND dlg, UINT msg, WPARAM wparam, LPARAM lparam)
93	{
94	static listview_ctrl_t lv = NULL;
95	static keylist_t list = NULL;
96	static int enable = 0;
97	gpg_keycache_t kc;
98	gpgme_key_t *rset;
99	gpgme_error_t err;
100	gpgme_ctx_t ctx;
101	passphrase_cb_s pwd;
102	char *signer = NULL;
103	int force_trust = 0, opt = 0;
104	int kmode = reg_prefs.keylist_mode? KEYLIST_ENCRYPT_MIN : KEYLIST_ENCRYPT;
105	int n;
106
107	switch( msg ) {
108	case WM_INITDIALOG:
109	enable = 0;
110	#ifndef LANG_DE
111	SetWindowText( dlg, _("Sign & Encrypt") );
112	#endif
113	kc = keycache_get_ctx( KEYCACHE_PUB );
114	if( !kc )
115	BUG( NULL );
116	lv = keylist_load( GetDlgItem( dlg, IDC_SIGNENC_KEYLIST ),
117	kc, NULL, kmode, KEY_SORT_USERID);
118	seclist_init( dlg, IDC_SIGNENC_SECLIST, KEYLIST_FLAG_SHORT, &list );
119	center_window (dlg, NULL);
120	set_active_window (dlg);
121	EnableWindow (GetDlgItem (dlg, IDC_SIGNENC_SECLIST), FALSE);
122	SetDlgItemText (dlg, IDC_SIGNENC_SELKEY, _("Select key for signing"));
123	SetDlgItemText (dlg, IDC_SIGNENC_SECLISTINF, _("Signing key:"));
124	SetForegroundWindow (dlg);
125	return TRUE;
126
127	case WM_DESTROY:
128	seclist_destroy (&list);
129	reset_active_window ();
130	if (lv) {
131	keylist_delete( lv );
132	lv = NULL;
133	}
134	return FALSE;
135
136	case WM_NOTIFY:
137	NMHDR * notify;
138	notify = (NMHDR *)lparam;
139	if( notify && notify->code == NM_DBLCLK
140	&& notify->idFrom == IDC_SIGNENC_KEYLIST )
141	PostMessage( dlg, WM_COMMAND, MAKEWPARAM(IDOK, 0), NULL );
142	return TRUE;
143
144	case WM_SYSCOMMAND:
145	if( LOWORD (wparam) == SC_CLOSE )
146	EndDialog( dlg, TRUE );
147	return FALSE;
148
149	case WM_COMMAND:
150	/* fixme: the enable seems to have a sync problem */
151	if( HIWORD( wparam ) == BN_CLICKED
152	&& LOWORD( wparam ) == IDC_SIGNENC_SELKEY ) {
153	enable ^= 1;
154	EnableWindow( GetDlgItem( dlg, IDC_SIGNENC_SECLIST ), enable? TRUE : FALSE );
155	}
156	switch( LOWORD( wparam ) ) {
157	case IDOK:
158	rset = keylist_get_recipients( lv, &force_trust, &n );
159	if (!n) {
160	msg_box( dlg, _("You must select at least one key."), _("Sign & Encrypt"), MB_ERR );
161	return FALSE;
162	}
163	if( IsDlgButtonChecked( dlg, IDC_SIGNENC_SELKEY ) ) {
164	gpgme_key_t key;
165	const char * s;
166
167	if( seclist_select_key( dlg, IDC_SIGNENC_SECLIST, &key ) ) {
168	msg_box( dlg, _("No key was selected."), _("Signing"), MB_ERR );
169	return FALSE;
170	}
171	s = key->subkeys->keyid;
172	if (s)
173	signer = m_strdup(s+8);
174	}
175	else {
176	signer = get_gnupg_default_key ();
177	if (!signer) {
178	msg_box (dlg, _("Could not get default key."), _("Signing"), MB_ERR);
179	return FALSE;
180	}
181	}
182
183	err = gpgme_new (&ctx);
184	if (err)
185	BUG (NULL);
186	set_gpg_passphrase_cb (&pwd, ctx, GPG_CMD_SIGN, dlg, _("Sign & Encrypt"));
187	err = gpg_clip_sign_encrypt (ctx, signer, rset, force_trust);
188	release_gpg_passphrase_cb (&pwd);
189	free (rset);
190	free_if_alloc (signer);
191	gpgme_release (ctx);
192	if (gpgme_err_code (err) == GPG_ERR_BAD_PASSPHRASE)
193	agent_del_cache (pwd.keyid);
194	if (err) {
195	msg_box (dlg, gpgme_strerror (err), _("Sign & Encrypt"), MB_ERR );
196	return FALSE;
197	}
198	show_msg (dlg, 1500, _("GnuPG Status: Finished"));
199	EndDialog (dlg, TRUE);
200	return TRUE;
201
202	case IDCANCEL:
203	EndDialog( dlg, FALSE );
204	return FALSE;
205	}
206	break;
207	}
208
209	return FALSE;
210	}