trunk/MyGPGME/w32-clip.c

/* w32-clip.c - W32 API clipboard functions
 *      Copyright (C) 2001, 2002, 2003 Timo Schulz
 *
 * This file is part of MyGPGME.
 *
 * MyGPGME 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.
 *
 * MyGPGME 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 this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
 */

#include <windows.h>

#include "util.h"
#include "ops.h"
#include "context.h"


static char*
get_w32_clip_text( int *r_size )
{
    int rc, size;
    char *private_clip = NULL;
    char *clip = NULL;
    HANDLE cb;
    
    rc = OpenClipboard( NULL );
    if( !rc )
        return NULL;
    cb = GetClipboardData( CF_TEXT );
    if( !cb )
        goto leave;    
    private_clip = GlobalLock( cb );
    if( !private_clip )
        goto leave;
    size = strlen( private_clip );
    clip = malloc( size + 1 );
    if( !clip ) {
        GlobalUnlock( cb );
        goto leave;
    }
    memcpy( clip, private_clip, size );
    clip[size] = '\0';
    *r_size = size;
    GlobalUnlock( cb );
    
leave:
    CloseClipboard();
    return clip;
} /* get_w32_clip_text */


static void
set_w32_clip_text( const char *data, int size )
{
    int rc;
    HANDLE cb;
    char *private_data;
    
    rc = OpenClipboard( NULL );
    if( !rc )
        return;
    EmptyClipboard();
    cb = GlobalAlloc( GHND, size+1 );
    if( !cb )
        goto leave;
    private_data = GlobalLock( cb );
    if( !private_data )
        goto leave;
    memcpy( private_data, data, size );
    private_data[size] = '\0';
    SetClipboardData( CF_TEXT, cb );
    GlobalUnlock( cb );
    
leave:    
    CloseClipboard( );
    GlobalFree( cb );
} /* set_w32_clip_text */


gpgme_error_t
gpgme_data_new_from_clipboard (gpgme_data_t *r_dh)
{
    gpgme_error_t err = 0;
    gpgme_data_t dh;
    char *clip_text;
    int size;

    if (!r_dh)
        return mk_error (Invalid_Value);
    *r_dh = NULL;
    clip_text = get_w32_clip_text (&size);
    if (!clip_text)
        return mk_error (No_Data);
    err = gpgme_data_new_from_mem (&dh, clip_text, size, 1);
    safe_free (clip_text);
    *r_dh = dh;
    return err;
} /* gpgme_data_new_from_clipboard */


void
gpgme_data_release_and_set_clipboard (gpgme_data_t dh)
{       
    char *clip_text;
    int size = 0;
    
    if (!dh)
        return;
    clip_text = _gpgme_data_get_as_string (dh);
    if (clip_text && (size = strlen (clip_text)) > 0) {
        set_w32_clip_text (clip_text, size);
        memset (clip_text, 0xFF, size);
        safe_free (clip_text);
    }
    gpgme_data_release (dh);
} /* gpgme_data_release_and_set_clipboard */


gpgme_error_t
gpgme_data_fix_clipboard( gpgme_data_t dh )
{
    const char *packets[] = {   
        "-----BEGIN PGP MESSAGE-----"       
        "-----BEGIN PGP PRIVATE KEY-----",
        "-----BEGIN PGP PUBLIC KEY-----",
        "-----BEGIN PGP SIGNED MESSAGE-----"
    };
    const char *headers[] = {
        "Comment"
        "Hash",
        "Version"
    };
    char *p;
    int idx;

    p = _gpgme_data_get_as_string( dh );
    if( p == NULL )
        return mk_error( Invalid_Value );
    for( idx = 0; idx < 4; idx++ ) {
        if( strstr( p, packets[idx] ) )
            break;
    }
    safe_free( p );

    return 1;
} /* gpgme_data_fix_clipboard */
1	/* w32-clip.c - W32 API clipboard functions
2	* Copyright (C) 2001, 2002, 2003 Timo Schulz
3	*
4	* This file is part of MyGPGME.
5	*
6	* MyGPGME 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	* MyGPGME 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 this program; if not, write to the Free Software
18	* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
19	*/
20
21	#include <windows.h>
22
23	#include "util.h"
24	#include "ops.h"
25	#include "context.h"
26
27
28	static char*
29	get_w32_clip_text( int *r_size )
30	{
31	int rc, size;
32	char *private_clip = NULL;
33	char *clip = NULL;
34	HANDLE cb;
35
36	rc = OpenClipboard( NULL );
37	if( !rc )
38	return NULL;
39	cb = GetClipboardData( CF_TEXT );
40	if( !cb )
41	goto leave;
42	private_clip = GlobalLock( cb );
43	if( !private_clip )
44	goto leave;
45	size = strlen( private_clip );
46	clip = malloc( size + 1 );
47	if( !clip ) {
48	GlobalUnlock( cb );
49	goto leave;
50	}
51	memcpy( clip, private_clip, size );
52	clip[size] = '\0';
53	*r_size = size;
54	GlobalUnlock( cb );
55
56	leave:
57	CloseClipboard();
58	return clip;
59	} /* get_w32_clip_text */
60
61
62	static void
63	set_w32_clip_text( const char *data, int size )
64	{
65	int rc;
66	HANDLE cb;
67	char *private_data;
68
69	rc = OpenClipboard( NULL );
70	if( !rc )
71	return;
72	EmptyClipboard();
73	cb = GlobalAlloc( GHND, size+1 );
74	if( !cb )
75	goto leave;
76	private_data = GlobalLock( cb );
77	if( !private_data )
78	goto leave;
79	memcpy( private_data, data, size );
80	private_data[size] = '\0';
81	SetClipboardData( CF_TEXT, cb );
82	GlobalUnlock( cb );
83
84	leave:
85	CloseClipboard( );
86	GlobalFree( cb );
87	} /* set_w32_clip_text */
88
89
90	gpgme_error_t
91	gpgme_data_new_from_clipboard (gpgme_data_t *r_dh)
92	{
93	gpgme_error_t err = 0;
94	gpgme_data_t dh;
95	char *clip_text;
96	int size;
97
98	if (!r_dh)
99	return mk_error (Invalid_Value);
100	*r_dh = NULL;
101	clip_text = get_w32_clip_text (&size);
102	if (!clip_text)
103	return mk_error (No_Data);
104	err = gpgme_data_new_from_mem (&dh, clip_text, size, 1);
105	safe_free (clip_text);
106	*r_dh = dh;
107	return err;
108	} /* gpgme_data_new_from_clipboard */
109
110
111	void
112	gpgme_data_release_and_set_clipboard (gpgme_data_t dh)
113	{
114	char *clip_text;
115	int size = 0;
116
117	if (!dh)
118	return;
119	clip_text = _gpgme_data_get_as_string (dh);
120	if (clip_text && (size = strlen (clip_text)) > 0) {
121	set_w32_clip_text (clip_text, size);
122	memset (clip_text, 0xFF, size);
123	safe_free (clip_text);
124	}
125	gpgme_data_release (dh);
126	} /* gpgme_data_release_and_set_clipboard */
127
128
129	gpgme_error_t
130	gpgme_data_fix_clipboard( gpgme_data_t dh )
131	{
132	const char *packets[] = {
133	"-----BEGIN PGP MESSAGE-----"
134	"-----BEGIN PGP PRIVATE KEY-----",
135	"-----BEGIN PGP PUBLIC KEY-----",
136	"-----BEGIN PGP SIGNED MESSAGE-----"
137	};
138	const char *headers[] = {
139	"Comment"
140	"Hash",
141	"Version"
142	};
143	char *p;
144	int idx;
145
146	p = _gpgme_data_get_as_string( dh );
147	if( p == NULL )
148	return mk_error( Invalid_Value );
149	for( idx = 0; idx < 4; idx++ ) {
150	if( strstr( p, packets[idx] ) )
151	break;
152	}
153	safe_free( p );
154
155	return 1;
156	} /* gpgme_data_fix_clipboard */