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