trunk/Src/wptClipEncryptDlg.cpp

/* wptClipEncryptDlg.cpp - Clipboard encrypt dialog
 *      Copyright (C) 2000-2005 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 "wptW32API.h"
#include "wptVersion.h"
#include "wptErrors.h"
#include "wptCommonCtl.h"
#include "wptGPG.h"
#include "wptKeylist.h"
#include "wptNLS.h"
#include "wptContext.h" /* for passphrase_s */
#include "wptRegistry.h"
#include "wptDlgs.h"


/* Encrypt the contents of the clipboard with the keys in @rset.
   If @always_trust is set, GPG is forced to trust any recipients.
   The context is returned in @r_ctx.
   Return value: 0 on success. */
gpgme_error_t
gpg_clip_encrypt (gpgme_key_t rset[], int always_trust, gpgme_ctx_t *r_ctx)
{
    gpgme_error_t err;
    gpgme_ctx_t ctx = NULL;
    gpgme_data_t plain = NULL;
    gpgme_data_t ciph = NULL;
    
    err = gpgme_new (&ctx);
    if (err)
        return err;
    
    gpgme_set_armor (ctx, 1);
    gpgme_set_textmode (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_op_encrypt (ctx, rset,
                            always_trust?GPGME_ENCRYPT_ALWAYS_TRUST : (gpgme_encrypt_flags_t)0, 
                            plain, ciph);
    *r_ctx = ctx;
    if (err)
        goto leave;
    
    gpg_data_release_and_set_clipboard (ciph, 1);
    ciph = NULL;

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


/* Show all invalid recipients if possible. @dlg is the 
   handle to the calling dialog and @ctx is the context
   used for encryption.
   Return value: 0 if invalid recipients exist -1 otherwise. */
static int
show_invalid_recipients (HWND dlg, gpgme_ctx_t ctx)
{
    gpgme_encrypt_result_t res;
    gpgme_invalid_key_t k;
    gpgme_key_t key;
    size_t len=0;
    char *p;

    if (!ctx)
        return -1;
    res = gpgme_op_encrypt_result (ctx);
    if (!res || !res->invalid_recipients)
        return -1;

    for (k=res->invalid_recipients; k; k = k->next) {
        get_pubkey (k->fpr, &key);
        len += (32 + 16 + strlen (key->uids->name) + 2) + 4;
    }

    p = (char *)calloc (1, len+64);
    if (!p)
        BUG (NULL);
    strcpy (p, _("Recipients unsuable for encryption:\n"));
    for (k = res->invalid_recipients; k; k = k->next) {
        get_pubkey (k->fpr, &key);
        strcat (p, key->subkeys->keyid+8);
        strcat (p, " : ");
        strcat (p, key->uids->name);
        strcat (p, "\n");
    }
    msg_box (dlg, p, _("Encryption"), MB_ERR);
    free (p);
    return 0;
}


/* Dialog procedure for the clipboard encryption. */
BOOL CALLBACK 
clip_encrypt_dlg_proc (HWND dlg, UINT msg, WPARAM wparam, LPARAM lparam)
{
    static listview_ctrl_t lv = NULL;
    gpg_keycache_t kc;
    gpgme_key_t *rset;
    gpgme_ctx_t ctx=NULL;
    gpgme_error_t err;
    int force_trust = 0;
    int kmode = reg_prefs.keylist_mode? KEYLIST_ENCRYPT_MIN : KEYLIST_ENCRYPT;
    int n;
    
    switch( msg ) {
    case WM_INITDIALOG:
        SetWindowText (dlg, _("Encryption"));
        SetDlgItemText (dlg, IDC_ENCRYPT_FNDCMD, _("&Find"));
        SetDlgItemText (dlg, IDCANCEL, _("&Cancel"));
        kc = keycache_get_ctx( KEYCACHE_PUB );
        if( !kc )
            BUG( NULL );
        lv = keylist_load (GetDlgItem( dlg, IDC_ENCRYPT_KEYLIST ), kc, NULL,
                           kmode, KEY_SORT_USERID);
        center_window( dlg, NULL );
        SetForegroundWindow( dlg );
        return TRUE;
        
    case WM_DESTROY:
        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_ENCRYPT_KEYLIST)
            PostMessage( dlg, WM_COMMAND, MAKEWPARAM( IDOK, 0 ), 0 );
        if (notify && notify->code == LVN_COLUMNCLICK && 
            notify->idFrom == IDC_ENCRYPT_KEYLIST ) {
            NMLISTVIEW *p = (LPNMLISTVIEW) lparam;
            int sortby = 0;

            switch( p->iSubItem ) {
            case  0: sortby = KEY_SORT_USERID; break;
            case  1: sortby = KEY_SORT_KEYID; break;
            case  2: sortby = KEY_SORT_LEN; break;
            case  4: sortby = KEY_SORT_VALIDITY; break;
            default: sortby = KEY_SORT_USERID; break;
            }
            keylist_sort( lv, sortby );
        }
        return TRUE;
        
    case WM_SYSCOMMAND:
        if( LOWORD( wparam ) == SC_CLOSE )
            EndDialog( dlg, TRUE );
        return FALSE;
        
    case WM_COMMAND:
        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."), _("Encryption"), MB_ERR);
                free (rset);
                return FALSE;
            }
            err = gpg_clip_encrypt (rset, force_trust, &ctx);
            if (err) {
                if (show_invalid_recipients (dlg, ctx))
                    msg_box (dlg, gpgme_strerror (err), _("Encryption"), MB_ERR);
                if (ctx)
                    gpgme_release (ctx);
                free (rset);
                return FALSE;
            }
            else
                show_msg( dlg, 1500, _("GnuPG Status: Finished") );
            free (rset);
            gpgme_release (ctx);
            EndDialog (dlg, TRUE);
            return TRUE;
            
        case IDCANCEL:
            EndDialog( dlg, FALSE );
            return FALSE;

        case IDC_ENCRYPT_FNDCMD:
        {
            char tmpbuf[64];

            n = GetDlgItemText (dlg, IDC_ENCRYPT_FIND, tmpbuf, DIM (tmpbuf)-1);
            if (!n)
                break;
            n = listview_find (lv, tmpbuf);
            if (n != -1) {              
                int oldpos = listview_get_curr_pos (lv);
                listview_select_one (lv, n);
                listview_scroll (lv, oldpos, n);
            }
            else
                log_box (_("Encryption"), MB_ERR, _("No recipient found with '%s'"), tmpbuf);
            break;
        }
        }
        break;
    }
    
    return FALSE;
}

1	werner	36	/* wptClipEncryptDlg.cpp - Clipboard encrypt dialog
2			* Copyright (C) 2000-2005 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			#ifdef HAVE_CONFIG_H
22			#include <config.h>
23			#endif
24
25			#include <windows.h>
26			#include <commctrl.h>
27
28	werner	47	#include "resource.h"
29	werner	36	#include "wptTypes.h"
30			#include "wptW32API.h"
31			#include "wptVersion.h"
32			#include "wptErrors.h"
33			#include "wptCommonCtl.h"
34			#include "wptGPG.h"
35			#include "wptKeylist.h"
36			#include "wptNLS.h"
37			#include "wptContext.h" /* for passphrase_s */
38			#include "wptRegistry.h"
39			#include "wptDlgs.h"
40
41
42			/* Encrypt the contents of the clipboard with the keys in @rset.
43			If @always_trust is set, GPG is forced to trust any recipients.
44			The context is returned in @r_ctx.
45			Return value: 0 on success. */
46			gpgme_error_t
47			gpg_clip_encrypt (gpgme_key_t rset[], int always_trust, gpgme_ctx_t *r_ctx)
48			{
49			gpgme_error_t err;
50			gpgme_ctx_t ctx = NULL;
51			gpgme_data_t plain = NULL;
52			gpgme_data_t ciph = NULL;
53
54			err = gpgme_new (&ctx);
55			if (err)
56			return err;
57
58			gpgme_set_armor (ctx, 1);
59	twoaday	175	gpgme_set_textmode (ctx, 1);
60	werner	36
61			err = gpg_data_new_from_clipboard (&plain, 0);
62			if (err)
63			goto leave;
64			err = gpgme_data_new (&ciph);
65			if (err)
66	twoaday	175	goto leave;
67	werner	36	err = gpgme_op_encrypt (ctx, rset,
68			always_trust?GPGME_ENCRYPT_ALWAYS_TRUST : (gpgme_encrypt_flags_t)0,
69			plain, ciph);
70			*r_ctx = ctx;
71			if (err)
72			goto leave;
73
74			gpg_data_release_and_set_clipboard (ciph, 1);
75			ciph = NULL;
76
77			leave:
78			if (ciph)
79			gpgme_data_release (ciph);
80			gpgme_data_release (plain);
81			return err;
82			}
83
84
85			/* Show all invalid recipients if possible. @dlg is the
86			handle to the calling dialog and @ctx is the context
87			used for encryption.
88			Return value: 0 if invalid recipients exist -1 otherwise. */
89			static int
90			show_invalid_recipients (HWND dlg, gpgme_ctx_t ctx)
91			{
92			gpgme_encrypt_result_t res;
93			gpgme_invalid_key_t k;
94			gpgme_key_t key;
95			size_t len=0;
96			char *p;
97
98			if (!ctx)
99			return -1;
100			res = gpgme_op_encrypt_result (ctx);
101			if (!res \|\| !res->invalid_recipients)
102			return -1;
103
104			for (k=res->invalid_recipients; k; k = k->next) {
105			get_pubkey (k->fpr, &key);
106			len += (32 + 16 + strlen (key->uids->name) + 2) + 4;
107			}
108
109			p = (char *)calloc (1, len+64);
110			if (!p)
111			BUG (NULL);
112	twoaday	68	strcpy (p, _("Recipients unsuable for encryption:\n"));
113	werner	36	for (k = res->invalid_recipients; k; k = k->next) {
114			get_pubkey (k->fpr, &key);
115			strcat (p, key->subkeys->keyid+8);
116			strcat (p, " : ");
117			strcat (p, key->uids->name);
118			strcat (p, "\n");
119			}
120			msg_box (dlg, p, _("Encryption"), MB_ERR);
121			free (p);
122			return 0;
123			}
124
125
126			/* Dialog procedure for the clipboard encryption. */
127			BOOL CALLBACK
128			clip_encrypt_dlg_proc (HWND dlg, UINT msg, WPARAM wparam, LPARAM lparam)
129			{
130			static listview_ctrl_t lv = NULL;
131			gpg_keycache_t kc;
132			gpgme_key_t *rset;
133			gpgme_ctx_t ctx=NULL;
134			gpgme_error_t err;
135	twoaday	68	int force_trust = 0;
136	werner	36	int kmode = reg_prefs.keylist_mode? KEYLIST_ENCRYPT_MIN : KEYLIST_ENCRYPT;
137			int n;
138
139			switch( msg ) {
140			case WM_INITDIALOG:
141	twoaday	105	SetWindowText (dlg, _("Encryption"));
142			SetDlgItemText (dlg, IDC_ENCRYPT_FNDCMD, _("&Find"));
143			SetDlgItemText (dlg, IDCANCEL, _("&Cancel"));
144	werner	36	kc = keycache_get_ctx( KEYCACHE_PUB );
145			if( !kc )
146			BUG( NULL );
147			lv = keylist_load (GetDlgItem( dlg, IDC_ENCRYPT_KEYLIST ), kc, NULL,
148			kmode, KEY_SORT_USERID);
149			center_window( dlg, NULL );
150			SetForegroundWindow( dlg );
151			return TRUE;
152
153			case WM_DESTROY:
154			if( lv ) {
155			keylist_delete( lv );
156			lv = NULL;
157			}
158			return FALSE;
159
160			case WM_NOTIFY:
161			NMHDR *notify;
162
163			notify = (NMHDR *)lparam;
164			if (notify && notify->code == NM_DBLCLK &&
165			notify->idFrom == IDC_ENCRYPT_KEYLIST)
166	twoaday	105	PostMessage( dlg, WM_COMMAND, MAKEWPARAM( IDOK, 0 ), 0 );
167	werner	36	if (notify && notify->code == LVN_COLUMNCLICK &&
168			notify->idFrom == IDC_ENCRYPT_KEYLIST ) {
169			NMLISTVIEW *p = (LPNMLISTVIEW) lparam;
170			int sortby = 0;
171
172			switch( p->iSubItem ) {
173			case 0: sortby = KEY_SORT_USERID; break;
174			case 1: sortby = KEY_SORT_KEYID; break;
175			case 2: sortby = KEY_SORT_LEN; break;
176			case 4: sortby = KEY_SORT_VALIDITY; break;
177			default: sortby = KEY_SORT_USERID; break;
178			}
179			keylist_sort( lv, sortby );
180			}
181			return TRUE;
182
183			case WM_SYSCOMMAND:
184			if( LOWORD( wparam ) == SC_CLOSE )
185			EndDialog( dlg, TRUE );
186			return FALSE;
187
188			case WM_COMMAND:
189			switch( LOWORD( wparam ) ) {
190			case IDOK:
191			rset = keylist_get_recipients (lv, &force_trust, &n);
192			if (!n) {
193			msg_box (dlg, _("You must select at least one key."), _("Encryption"), MB_ERR);
194			free (rset);
195			return FALSE;
196			}
197			err = gpg_clip_encrypt (rset, force_trust, &ctx);
198			if (err) {
199			if (show_invalid_recipients (dlg, ctx))
200			msg_box (dlg, gpgme_strerror (err), _("Encryption"), MB_ERR);
201			if (ctx)
202			gpgme_release (ctx);
203			free (rset);
204			return FALSE;
205			}
206			else
207			show_msg( dlg, 1500, _("GnuPG Status: Finished") );
208			free (rset);
209			gpgme_release (ctx);
210			EndDialog (dlg, TRUE);
211			return TRUE;
212
213			case IDCANCEL:
214			EndDialog( dlg, FALSE );
215			return FALSE;
216
217			case IDC_ENCRYPT_FNDCMD:
218			{
219			char tmpbuf[64];
220
221			n = GetDlgItemText (dlg, IDC_ENCRYPT_FIND, tmpbuf, DIM (tmpbuf)-1);
222			if (!n)
223			break;
224			n = listview_find (lv, tmpbuf);
225			if (n != -1) {
226			int oldpos = listview_get_curr_pos (lv);
227			listview_select_one (lv, n);
228			listview_scroll (lv, oldpos, n);
229			}
230			else
231			log_box (_("Encryption"), MB_ERR, _("No recipient found with '%s'"), tmpbuf);
232			break;
233			}
234			}
235			break;
236			}
237
238			return FALSE;
239			}
240