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
 */

#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);
    if (err)
        goto leave;

    gpg_data_release_and_set_clipboard (ciph, 1);
    ciph = NULL;
    *r_ctx = ctx;

leave:
    if (err) {
        gpgme_release (ctx);
        *r_ctx = NULL;
    }
    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;

    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);
    sprintf (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);
        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;
    gpgme_keycache_t kc;
    gpgme_key_t *rset;
    gpgme_ctx_t ctx;
    gpgme_error_t err;
    refresh_cache_s rcs = {0};
    int force_trust = 0, opt = 0;
    int kmode = reg_prefs.keylist_mode? KEYLIST_ENCRYPT_MIN : KEYLIST_ENCRYPT;
    int n;
    
    switch( msg ) {
    case WM_INITDIALOG:
        SetWindowText( dlg, _("Encryption") );
        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 );
        set_active_window( dlg );
        return TRUE;
        
    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_ENCRYPT_KEYLIST)
            PostMessage( dlg, WM_COMMAND, MAKEWPARAM( IDOK, 0 ), NULL );
        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);
                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];
            int n;

            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	twoaday	2	/* wptClipEncryptDlg.cpp - Clipboard encrypt dialog
2	twoaday	22	* Copyright (C) 2000-2005 Timo Schulz
3	twoaday	24	* Copyright (C) 2005 g10 Code GmbH
4	twoaday	2	*
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
22			#include <windows.h>
23			#include <commctrl.h>
24
25			#include "../resource.h"
26			#include "wptTypes.h"
27			#include "wptW32API.h"
28			#include "wptVersion.h"
29			#include "wptErrors.h"
30			#include "wptCommonCtl.h"
31			#include "wptGPG.h"
32			#include "wptKeylist.h"
33			#include "wptNLS.h"
34			#include "wptContext.h" /* for passphrase_s */
35			#include "wptRegistry.h"
36			#include "wptDlgs.h"
37
38
39	twoaday	23	/* Encrypt the contents of the clipboard with the keys in @rset.
40			If @always_trust is set, GPG is forced to trust any recipients.
41			The context is returned in @r_ctx.
42			Return value: 0 on success. */
43			gpgme_error_t
44			gpg_clip_encrypt (gpgme_key_t rset[], int always_trust, gpgme_ctx_t *r_ctx)
45			{
46			gpgme_error_t err;
47			gpgme_ctx_t ctx = NULL;
48			gpgme_data_t plain = NULL;
49			gpgme_data_t ciph = NULL;
50
51			err = gpgme_new(&ctx);
52			if (err)
53			return err;
54
55			gpgme_set_armor (ctx, 1);
56
57			err = gpg_data_new_from_clipboard (&plain, 0);
58			if (err)
59			goto leave;
60			err = gpgme_data_new (&ciph);
61			if (err)
62			goto leave;
63			err = gpgme_op_encrypt (ctx, rset,
64			always_trust?GPGME_ENCRYPT_ALWAYS_TRUST : (gpgme_encrypt_flags_t)0,
65			plain, ciph);
66			if (err)
67			goto leave;
68
69			gpg_data_release_and_set_clipboard (ciph, 1);
70			ciph = NULL;
71			*r_ctx = ctx;
72
73			leave:
74			if (err) {
75			gpgme_release (ctx);
76			*r_ctx = NULL;
77			}
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			res = gpgme_op_encrypt_result (ctx);
99			if (!res \|\| !res->invalid_recipients)
100			return -1;
101
102			for (k=res->invalid_recipients; k; k = k->next) {
103			get_pubkey (k->fpr, &key);
104			len += (32 + 16 + strlen (key->uids->name) + 2) + 4;
105			}
106
107			p = (char *)calloc (1, len+64);
108			if (!p)
109			BUG (NULL);
110			sprintf (p, _("Recipients unsuable for encryption:\n"));
111			for (k = res->invalid_recipients; k; k = k->next) {
112			get_pubkey (k->fpr, &key);
113			strcat (p, key->subkeys->keyid);
114			strcat (p, " : ");
115			strcat (p, key->uids->name);
116			strcat (p, "\n");
117			}
118			msg_box (dlg, p, _("Encryption"), MB_ERR);
119			free (p);
120			return 0;
121			}
122
123
124			/* Dialog procedure for the clipboard encryption. */
125	twoaday	2	BOOL CALLBACK
126	twoaday	23	clip_encrypt_dlg_proc (HWND dlg, UINT msg, WPARAM wparam, LPARAM lparam)
127	twoaday	2	{
128			static listview_ctrl_t lv = NULL;
129			gpgme_keycache_t kc;
130	twoaday	23	gpgme_key_t *rset;
131	twoaday	2	gpgme_ctx_t ctx;
132			gpgme_error_t err;
133			refresh_cache_s rcs = {0};
134			int force_trust = 0, opt = 0;
135			int kmode = reg_prefs.keylist_mode? KEYLIST_ENCRYPT_MIN : KEYLIST_ENCRYPT;
136	twoaday	23	int n;
137	twoaday	2
138			switch( msg ) {
139			case WM_INITDIALOG:
140			SetWindowText( dlg, _("Encryption") );
141			kc = keycache_get_ctx( KEYCACHE_PUB );
142			if( !kc )
143			BUG( NULL );
144	twoaday	23	lv = keylist_load (GetDlgItem( dlg, IDC_ENCRYPT_KEYLIST ), kc, NULL,
145			kmode, KEY_SORT_USERID);
146			center_window( dlg, NULL );
147	twoaday	2	SetForegroundWindow( dlg );
148			set_active_window( dlg );
149			return TRUE;
150
151			case WM_DESTROY:
152			reset_active_window( );
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	twoaday	23	if (notify && notify->code == NM_DBLCLK &&
164			notify->idFrom == IDC_ENCRYPT_KEYLIST)
165	twoaday	2	PostMessage( dlg, WM_COMMAND, MAKEWPARAM( IDOK, 0 ), NULL );
166	twoaday	23	if (notify && notify->code == LVN_COLUMNCLICK &&
167			notify->idFrom == IDC_ENCRYPT_KEYLIST ) {
168	twoaday	2	NMLISTVIEW *p = (LPNMLISTVIEW) lparam;
169			int sortby = 0;
170
171			switch( p->iSubItem ) {
172	twoaday	23	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	twoaday	2	}
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	twoaday	23	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	twoaday	2	return FALSE;
195			}
196	twoaday	23	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			gpgme_release (ctx);
201			free (rset);
202	twoaday	2	return FALSE;
203			}
204			else
205			show_msg( dlg, 1500, _("GnuPG Status: Finished") );
206	twoaday	23	free (rset);
207			gpgme_release (ctx);
208			EndDialog (dlg, TRUE);
209	twoaday	2	return TRUE;
210
211			case IDCANCEL:
212			EndDialog( dlg, FALSE );
213			return FALSE;
214
215			case IDC_ENCRYPT_FNDCMD:
216			{
217			char tmpbuf[64];
218			int n;
219
220			n = GetDlgItemText (dlg, IDC_ENCRYPT_FIND, tmpbuf, DIM (tmpbuf)-1);
221			if (!n)
222			break;
223			n = listview_find (lv, tmpbuf);
224	twoaday	22	if (n != -1) {
225			int oldpos = listview_get_curr_pos (lv);
226	twoaday	2	listview_select_one (lv, n);
227	twoaday	22	listview_scroll (lv, oldpos, n);
228			}
229	twoaday	2	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	twoaday	23	}
239