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"
#include "wptUTF8.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 *uid, *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) {
        if (get_pubkey (k->fpr, &key))
            continue;
        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) {
        if (get_pubkey (k->fpr, &key))
            continue;
        uid = utf8_to_native (key->uids->name);
        strcat (p, key->subkeys->keyid+8);
        strcat (p, " : ");
        strcat (p, uid);
        strcat (p, "\n");
        safe_free (uid);
    }
    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 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,
                           KEYLIST_ENCRYPT_MIN, 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);
                safe_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);
                safe_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	twoaday	197
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 "wptW32API.h"
32			#include "wptVersion.h"
33			#include "wptErrors.h"
34			#include "wptCommonCtl.h"
35			#include "wptGPG.h"
36			#include "wptKeylist.h"
37			#include "wptNLS.h"
38			#include "wptContext.h" /* for passphrase_s */
39			#include "wptRegistry.h"
40			#include "wptDlgs.h"
41	twoaday	197	#include "wptUTF8.h"
42	werner	36
43
44			/* Encrypt the contents of the clipboard with the keys in @rset.
45			If @always_trust is set, GPG is forced to trust any recipients.
46			The context is returned in @r_ctx.
47			Return value: 0 on success. */
48			gpgme_error_t
49			gpg_clip_encrypt (gpgme_key_t rset[], int always_trust, gpgme_ctx_t *r_ctx)
50			{
51			gpgme_error_t err;
52			gpgme_ctx_t ctx = NULL;
53			gpgme_data_t plain = NULL;
54			gpgme_data_t ciph = NULL;
55
56			err = gpgme_new (&ctx);
57			if (err)
58			return err;
59
60			gpgme_set_armor (ctx, 1);
61	twoaday	175	gpgme_set_textmode (ctx, 1);
62	werner	36
63			err = gpg_data_new_from_clipboard (&plain, 0);
64			if (err)
65			goto leave;
66			err = gpgme_data_new (&ciph);
67			if (err)
68	twoaday	197	goto leave;
69	werner	36	err = gpgme_op_encrypt (ctx, rset,
70			always_trust?GPGME_ENCRYPT_ALWAYS_TRUST : (gpgme_encrypt_flags_t)0,
71			plain, ciph);
72			*r_ctx = ctx;
73			if (err)
74			goto leave;
75
76			gpg_data_release_and_set_clipboard (ciph, 1);
77			ciph = NULL;
78
79			leave:
80			if (ciph)
81			gpgme_data_release (ciph);
82			gpgme_data_release (plain);
83			return err;
84			}
85
86
87			/* Show all invalid recipients if possible. @dlg is the
88			handle to the calling dialog and @ctx is the context
89			used for encryption.
90			Return value: 0 if invalid recipients exist -1 otherwise. */
91			static int
92			show_invalid_recipients (HWND dlg, gpgme_ctx_t ctx)
93			{
94			gpgme_encrypt_result_t res;
95			gpgme_invalid_key_t k;
96			gpgme_key_t key;
97			size_t len=0;
98	twoaday	197	char uid, p;
99	werner	36
100			if (!ctx)
101			return -1;
102			res = gpgme_op_encrypt_result (ctx);
103			if (!res \|\| !res->invalid_recipients)
104			return -1;
105
106			for (k=res->invalid_recipients; k; k = k->next) {
107	twoaday	197	if (get_pubkey (k->fpr, &key))
108			continue;
109	werner	36	len += (32 + 16 + strlen (key->uids->name) + 2) + 4;
110			}
111
112			p = (char *)calloc (1, len+64);
113			if (!p)
114			BUG (NULL);
115	twoaday	68	strcpy (p, _("Recipients unsuable for encryption:\n"));
116	werner	36	for (k = res->invalid_recipients; k; k = k->next) {
117	twoaday	197	if (get_pubkey (k->fpr, &key))
118			continue;
119			uid = utf8_to_native (key->uids->name);
120	werner	36	strcat (p, key->subkeys->keyid+8);
121			strcat (p, " : ");
122	twoaday	197	strcat (p, uid);
123	werner	36	strcat (p, "\n");
124	twoaday	197	safe_free (uid);
125	werner	36	}
126			msg_box (dlg, p, _("Encryption"), MB_ERR);
127			free (p);
128			return 0;
129			}
130
131
132			/* Dialog procedure for the clipboard encryption. */
133			BOOL CALLBACK
134			clip_encrypt_dlg_proc (HWND dlg, UINT msg, WPARAM wparam, LPARAM lparam)
135			{
136			static listview_ctrl_t lv = NULL;
137			gpg_keycache_t kc;
138			gpgme_key_t *rset;
139			gpgme_ctx_t ctx=NULL;
140			gpgme_error_t err;
141	twoaday	68	int force_trust = 0;
142	werner	36	int n;
143
144	twoaday	197	switch (msg) {
145	werner	36	case WM_INITDIALOG:
146	twoaday	105	SetWindowText (dlg, _("Encryption"));
147			SetDlgItemText (dlg, IDC_ENCRYPT_FNDCMD, _("&Find"));
148			SetDlgItemText (dlg, IDCANCEL, _("&Cancel"));
149	twoaday	197	kc = keycache_get_ctx (KEYCACHE_PUB);
150			if (!kc)
151			BUG (NULL);
152			lv = keylist_load (GetDlgItem (dlg, IDC_ENCRYPT_KEYLIST), kc, NULL,
153	twoaday	176	KEYLIST_ENCRYPT_MIN, KEY_SORT_USERID);
154	twoaday	197	center_window (dlg, NULL);
155			SetForegroundWindow (dlg);
156	werner	36	return TRUE;
157
158			case WM_DESTROY:
159			if( lv ) {
160			keylist_delete( lv );
161			lv = NULL;
162			}
163			return FALSE;
164
165			case WM_NOTIFY:
166			NMHDR *notify;
167
168			notify = (NMHDR *)lparam;
169			if (notify && notify->code == NM_DBLCLK &&
170			notify->idFrom == IDC_ENCRYPT_KEYLIST)
171	twoaday	105	PostMessage( dlg, WM_COMMAND, MAKEWPARAM( IDOK, 0 ), 0 );
172	werner	36	if (notify && notify->code == LVN_COLUMNCLICK &&
173			notify->idFrom == IDC_ENCRYPT_KEYLIST ) {
174			NMLISTVIEW *p = (LPNMLISTVIEW) lparam;
175			int sortby = 0;
176
177			switch( p->iSubItem ) {
178			case 0: sortby = KEY_SORT_USERID; break;
179			case 1: sortby = KEY_SORT_KEYID; break;
180			case 2: sortby = KEY_SORT_LEN; break;
181			case 4: sortby = KEY_SORT_VALIDITY; break;
182			default: sortby = KEY_SORT_USERID; break;
183			}
184			keylist_sort( lv, sortby );
185			}
186			return TRUE;
187
188			case WM_SYSCOMMAND:
189			if( LOWORD( wparam ) == SC_CLOSE )
190			EndDialog( dlg, TRUE );
191			return FALSE;
192
193			case WM_COMMAND:
194			switch( LOWORD( wparam ) ) {
195			case IDOK:
196			rset = keylist_get_recipients (lv, &force_trust, &n);
197			if (!n) {
198	twoaday	197	msg_box (dlg, _("You must select at least one key."),
199			_("Encryption"), MB_ERR);
200			safe_free (rset);
201	werner	36	return FALSE;
202			}
203			err = gpg_clip_encrypt (rset, force_trust, &ctx);
204			if (err) {
205			if (show_invalid_recipients (dlg, ctx))
206			msg_box (dlg, gpgme_strerror (err), _("Encryption"), MB_ERR);
207			if (ctx)
208			gpgme_release (ctx);
209	twoaday	197	safe_free (rset);
210	werner	36	return FALSE;
211			}
212			else
213			show_msg( dlg, 1500, _("GnuPG Status: Finished") );
214			free (rset);
215			gpgme_release (ctx);
216			EndDialog (dlg, TRUE);
217			return TRUE;
218
219			case IDCANCEL:
220			EndDialog( dlg, FALSE );
221			return FALSE;
222
223			case IDC_ENCRYPT_FNDCMD:
224			{
225			char tmpbuf[64];
226
227			n = GetDlgItemText (dlg, IDC_ENCRYPT_FIND, tmpbuf, DIM (tmpbuf)-1);
228			if (!n)
229			break;
230			n = listview_find (lv, tmpbuf);
231			if (n != -1) {
232			int oldpos = listview_get_curr_pos (lv);
233			listview_select_one (lv, n);
234			listview_scroll (lv, oldpos, n);
235			}
236			else
237			log_box (_("Encryption"), MB_ERR, _("No recipient found with '%s'"), tmpbuf);
238			break;
239			}
240			}
241			break;
242			}
243
244			return FALSE;
245			}
246