jcs.org
mutt stable branch with some hacks
1/*
2 * Copyright (C) 1997-2003 Thomas Roessler <roessler@does-not-exist.org>
3 *
4 * This program is free software; you can redistribute it
5 * and/or modify it under the terms of the GNU General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later
8 * version.
9 *
10 * This program is distributed in the hope that it will be
11 * useful, but WITHOUT ANY WARRANTY; without even the implied
12 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
13 * PURPOSE. See the GNU General Public License for more
14 * details.
15 *
16 * You should have received a copy of the GNU General Public
17 * License along with this program; if not, write to the Free
18 * Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 * Boston, MA 02110-1301, USA.
20 */
21
22/* This file contains the new pgp invocation code. Note that this
23 * is almost entirely format based.
24 */
25
26#if HAVE_CONFIG_H
27# include "config.h"
28#endif
29
30#include <sys/types.h>
31#include <sys/stat.h>
32
33#include <stdio.h>
34#include <stdlib.h>
35#include <string.h>
36#include <unistd.h>
37#include <fcntl.h>
38#include <time.h>
39
40#include "mutt.h"
41#include "mutt_curses.h"
42#include "mutt_idna.h"
43#include "pgp.h"
44#include "rfc822.h"
45
46/*
47 * The actual command line formatter.
48 */
49
50struct pgp_command_context {
51 short need_passphrase; /* %p */
52 const char *fname; /* %f */
53 const char *sig_fname; /* %s */
54 const char *signas; /* %a */
55 const char *ids; /* %r */
56};
57
58
59const char *_mutt_fmt_pgp_command (char *dest,
60 size_t destlen,
61 size_t col,
62 int cols,
63 char op,
64 const char *src,
65 const char *prefix,
66 const char *ifstring,
67 const char *elsestring,
68 unsigned long data,
69 format_flag flags)
70{
71 char fmt[16];
72 struct pgp_command_context *cctx = (struct pgp_command_context *) data;
73 int optional = (flags & MUTT_FORMAT_OPTIONAL);
74
75 switch (op)
76 {
77 case 'r':
78 {
79 if (!optional)
80 {
81 snprintf (fmt, sizeof (fmt), "%%%ss", prefix);
82 snprintf (dest, destlen, fmt, NONULL (cctx->ids));
83 }
84 else if (!cctx->ids)
85 optional = 0;
86 break;
87 }
88
89 case 'a':
90 {
91 if (!optional)
92 {
93 snprintf (fmt, sizeof (fmt), "%%%ss", prefix);
94 snprintf (dest, destlen, fmt, NONULL (cctx->signas));
95 }
96 else if (!cctx->signas)
97 optional = 0;
98 break;
99 }
100
101 case 's':
102 {
103 if (!optional)
104 {
105 snprintf (fmt, sizeof (fmt), "%%%ss", prefix);
106 snprintf (dest, destlen, fmt, NONULL (cctx->sig_fname));
107 }
108 else if (!cctx->sig_fname)
109 optional = 0;
110 break;
111 }
112
113 case 'f':
114 {
115 if (!optional)
116 {
117 snprintf (fmt, sizeof (fmt), "%%%ss", prefix);
118 snprintf (dest, destlen, fmt, NONULL (cctx->fname));
119 }
120 else if (!cctx->fname)
121 optional = 0;
122 break;
123 }
124
125 case 'p':
126 {
127 if (!optional)
128 {
129 snprintf (fmt, sizeof (fmt), "%%%ss", prefix);
130 snprintf (dest, destlen, fmt, cctx->need_passphrase ? "PGPPASSFD=0" : "");
131 }
132 else if (!cctx->need_passphrase || pgp_use_gpg_agent())
133 optional = 0;
134 break;
135 }
136 default:
137 {
138 *dest = '\0';
139 break;
140 }
141 }
142
143 if (optional)
144 mutt_FormatString (dest, destlen, col, cols, ifstring, _mutt_fmt_pgp_command, data, 0);
145 else if (flags & MUTT_FORMAT_OPTIONAL)
146 mutt_FormatString (dest, destlen, col, cols, elsestring, _mutt_fmt_pgp_command, data, 0);
147
148 return (src);
149}
150
151void mutt_pgp_command (char *d, size_t dlen, struct pgp_command_context *cctx, const char *fmt)
152{
153 mutt_FormatString (d, dlen, 0, MuttIndexWindow->cols, NONULL (fmt), _mutt_fmt_pgp_command, (unsigned long) cctx, 0);
154 dprint (2, (debugfile, "mutt_pgp_command: %s\n", d));
155}
156
157/*
158 * Glue.
159 */
160
161
162static pid_t pgp_invoke (FILE **pgpin, FILE **pgpout, FILE **pgperr,
163 int pgpinfd, int pgpoutfd, int pgperrfd,
164 short need_passphrase,
165 const char *fname,
166 const char *sig_fname,
167 const char *signas,
168 const char *ids,
169 const char *format)
170{
171 struct pgp_command_context cctx;
172 char cmd[HUGE_STRING];
173
174 memset (&cctx, 0, sizeof (cctx));
175
176 if (!format || !*format)
177 return (pid_t) -1;
178
179 cctx.need_passphrase = need_passphrase;
180 cctx.fname = fname;
181 cctx.sig_fname = sig_fname;
182 cctx.signas = signas;
183 cctx.ids = ids;
184
185 mutt_pgp_command (cmd, sizeof (cmd), &cctx, format);
186
187 return mutt_create_filter_fd (cmd, pgpin, pgpout, pgperr,
188 pgpinfd, pgpoutfd, pgperrfd);
189}
190
191
192/*
193 * The exported interface.
194 *
195 * This is historic and may be removed at some point.
196 *
197 */
198
199
200pid_t pgp_invoke_decode (FILE **pgpin, FILE **pgpout, FILE **pgperr,
201 int pgpinfd, int pgpoutfd, int pgperrfd,
202 const char *fname, short need_passphrase)
203{
204 return pgp_invoke (pgpin, pgpout, pgperr, pgpinfd, pgpoutfd, pgperrfd,
205 need_passphrase, fname, NULL, PgpSignAs, NULL,
206 PgpDecodeCommand);
207}
208
209pid_t pgp_invoke_verify (FILE **pgpin, FILE **pgpout, FILE **pgperr,
210 int pgpinfd, int pgpoutfd, int pgperrfd,
211 const char *fname, const char *sig_fname)
212{
213 return pgp_invoke (pgpin, pgpout, pgperr, pgpinfd, pgpoutfd, pgperrfd,
214 0, fname, sig_fname, PgpSignAs, NULL, PgpVerifyCommand);
215}
216
217pid_t pgp_invoke_decrypt (FILE **pgpin, FILE **pgpout, FILE **pgperr,
218 int pgpinfd, int pgpoutfd, int pgperrfd,
219 const char *fname)
220{
221 return pgp_invoke (pgpin, pgpout, pgperr, pgpinfd, pgpoutfd, pgperrfd,
222 1, fname, NULL, PgpSignAs, NULL, PgpDecryptCommand);
223}
224
225pid_t pgp_invoke_sign (FILE **pgpin, FILE **pgpout, FILE **pgperr,
226 int pgpinfd, int pgpoutfd, int pgperrfd,
227 const char *fname)
228{
229 return pgp_invoke (pgpin, pgpout, pgperr, pgpinfd, pgpoutfd, pgperrfd,
230 1, fname, NULL, PgpSignAs, NULL, PgpSignCommand);
231}
232
233
234pid_t pgp_invoke_encrypt (FILE **pgpin, FILE **pgpout, FILE **pgperr,
235 int pgpinfd, int pgpoutfd, int pgperrfd,
236 const char *fname, const char *uids, int sign)
237{
238 if (sign)
239 return pgp_invoke (pgpin, pgpout, pgperr, pgpinfd, pgpoutfd, pgperrfd,
240 1, fname, NULL, PgpSignAs, uids,
241 PgpEncryptSignCommand);
242 else
243 return pgp_invoke (pgpin, pgpout, pgperr, pgpinfd, pgpoutfd, pgperrfd,
244 0, fname, NULL, PgpSignAs, uids,
245 PgpEncryptOnlyCommand);
246}
247
248pid_t pgp_invoke_traditional (FILE **pgpin, FILE **pgpout, FILE **pgperr,
249 int pgpinfd, int pgpoutfd, int pgperrfd,
250 const char *fname, const char *uids, int flags)
251{
252 if (flags & ENCRYPT)
253 return pgp_invoke (pgpin, pgpout, pgperr, pgpinfd, pgpoutfd, pgperrfd,
254 flags & SIGN ? 1 : 0, fname, NULL, PgpSignAs, uids,
255 flags & SIGN ? PgpEncryptSignCommand : PgpEncryptOnlyCommand);
256 else
257 return pgp_invoke (pgpin, pgpout, pgperr, pgpinfd, pgpoutfd, pgperrfd,
258 1, fname, NULL, PgpSignAs, NULL,
259 PgpClearSignCommand);
260}
261
262
263void pgp_invoke_import (const char *fname)
264{
265 char _fname[_POSIX_PATH_MAX + SHORT_STRING];
266 char cmd[HUGE_STRING];
267 struct pgp_command_context cctx;
268
269 memset (&cctx, 0, sizeof (cctx));
270
271 mutt_quote_filename (_fname, sizeof (_fname), fname);
272 cctx.fname = _fname;
273 cctx.signas = PgpSignAs;
274
275 mutt_pgp_command (cmd, sizeof (cmd), &cctx, PgpImportCommand);
276 mutt_system (cmd);
277}
278
279void pgp_invoke_getkeys (ADDRESS *addr)
280{
281 char buff[LONG_STRING];
282 char tmp[LONG_STRING];
283 char cmd[HUGE_STRING];
284 int devnull;
285
286 char *personal;
287
288 struct pgp_command_context cctx;
289
290 if (!PgpGetkeysCommand) return;
291
292 memset (&cctx, 0, sizeof (cctx));
293
294 personal = addr->personal;
295 addr->personal = NULL;
296
297 *tmp = '\0';
298 mutt_addrlist_to_local (addr);
299 rfc822_write_address_single (tmp, sizeof (tmp), addr, 0);
300 mutt_quote_filename (buff, sizeof (buff), tmp);
301
302 addr->personal = personal;
303
304 cctx.ids = buff;
305
306 mutt_pgp_command (cmd, sizeof (cmd), &cctx, PgpGetkeysCommand);
307
308 devnull = open ("/dev/null", O_RDWR);
309
310 if (!isendwin ()) mutt_message _("Fetching PGP key...");
311
312 mutt_system (cmd);
313
314 if (!isendwin ()) mutt_clear_error ();
315
316 close (devnull);
317}
318
319pid_t pgp_invoke_export (FILE **pgpin, FILE **pgpout, FILE **pgperr,
320 int pgpinfd, int pgpoutfd, int pgperrfd,
321 const char *uids)
322{
323 return pgp_invoke (pgpin, pgpout, pgperr, pgpinfd, pgpoutfd, pgperrfd,
324 0, NULL, NULL, PgpSignAs, uids,
325 PgpExportCommand);
326}
327
328pid_t pgp_invoke_verify_key (FILE **pgpin, FILE **pgpout, FILE **pgperr,
329 int pgpinfd, int pgpoutfd, int pgperrfd,
330 const char *uids)
331{
332 return pgp_invoke (pgpin, pgpout, pgperr, pgpinfd, pgpoutfd, pgperrfd,
333 0, NULL, NULL, PgpSignAs, uids,
334 PgpVerifyKeyCommand);
335}
336
337pid_t pgp_invoke_list_keys (FILE **pgpin, FILE **pgpout, FILE **pgperr,
338 int pgpinfd, int pgpoutfd, int pgperrfd,
339 pgp_ring_t keyring, LIST *hints)
340{
341 char uids[HUGE_STRING];
342 char tmpuids[HUGE_STRING];
343 char quoted[HUGE_STRING];
344
345 *uids = '\0';
346
347 for (; hints; hints = hints->next)
348 {
349 mutt_quote_filename (quoted, sizeof (quoted), (char *) hints->data);
350 snprintf (tmpuids, sizeof (tmpuids), "%s %s", uids, quoted);
351 strcpy (uids, tmpuids); /* __STRCPY_CHECKED__ */
352 }
353
354 return pgp_invoke (pgpin, pgpout, pgperr, pgpinfd, pgpoutfd, pgperrfd,
355 0, NULL, NULL, PgpSignAs, uids,
356 keyring == PGP_SECRING ? PgpListSecringCommand :
357 PgpListPubringCommand);
358}