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pgpinvoke
pgpinvoke
/*
* Copyright (C) 1997-2000 Thomas Roessler
*
* This program 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.
*
* This program 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, USA.
*/
/* This file contains the new pgp invocation code. Note that this
* is almost entirely format based.
*/
#include
#include
#include
#include
#include
#include
#include
#include
#include "mutt.h"
#include "mutt_curses.h"
#include "pgp.h"
#include "rfc822.h"
/*
* The actual command line formatter.
*/
struct pgp_command_context {
short need_passphrase; /* %p */
const char *fname; /* %f */
const char *sig_fname; /* %s */
const char *signas; /* %a */
const char *ids; /* %r */
};
const char *_mutt_fmt_pgp_command (char *dest,
size_t destlen,
char op,
const char *src,
const char *prefix,
const char *ifstring,
const char *elsestring,
unsigned long data,
format_flag flags)
{
char fmt[16];
struct pgp_command_context *cctx = (struct pgp_command_context *) data;
int optional = (flags & M_FORMAT_OPTIONAL);
switch (op)
{
case 'r':
{
if (!optional)
{
snprintf (fmt, sizeof (fmt), "%%%ss", prefix);
snprintf (dest, destlen, fmt, NONULL (cctx->ids));
}
else if (!cctx->ids)
optional = 0;
break;
}
case 'a':
{
if (!optional)
{
snprintf (fmt, sizeof (fmt), "%%%ss", prefix);
snprintf (dest, destlen, fmt, NONULL (cctx->signas));
}
else if (!cctx->signas)
optional = 0;
break;
}
case 's':
{
if (!optional)
{
snprintf (fmt, sizeof (fmt), "%%%ss", prefix);
snprintf (dest, destlen, fmt, NONULL (cctx->sig_fname));
}
else if (!cctx->sig_fname)
optional = 0;
break;
}
case 'f':
{
if (!optional)
{
snprintf (fmt, sizeof (fmt), "%%%ss", prefix);
snprintf (dest, destlen, fmt, NONULL (cctx->fname));
}
else if (!cctx->fname)
optional = 0;
break;
}
case 'p':
{
if (!optional)
{
snprintf (fmt, sizeof (fmt), "%%%ss", prefix);
snprintf (dest, destlen, fmt, cctx->need_passphrase ? "PGPPASSFD=0" : "");
}
else if (!cctx->need_passphrase)
optional = 0;
break;
}
default:
{
*dest = '\0';
break;
}
}
if (optional)
mutt_FormatString (dest, destlen, ifstring, _mutt_fmt_pgp_command, data, 0);
else if (flags & M_FORMAT_OPTIONAL)
mutt_FormatString (dest, destlen, elsestring, _mutt_fmt_pgp_command, data, 0);
return (src);
}
void mutt_pgp_command (char *d, size_t dlen, struct pgp_command_context *cctx, const char *fmt)
{
mutt_FormatString (d, dlen, NONULL (fmt), _mutt_fmt_pgp_command, (unsigned long) cctx, 0);
dprint (2, (debugfile, "mutt_pgp_command: %s\n", d));
}
/*
* Glue.
*/
static pid_t pgp_invoke (FILE **pgpin, FILE **pgpout, FILE **pgperr,
int pgpinfd, int pgpoutfd, int pgperrfd,
short need_passphrase,
const char *fname,
const char *sig_fname,
const char *signas,
const char *ids,
const char *format)
{
struct pgp_command_context cctx;
char cmd[HUGE_STRING];
memset (&cctx, 0, sizeof (cctx));
if (!format || !*format)
return (pid_t) -1;
cctx.need_passphrase = need_passphrase;
cctx.fname = fname;
cctx.sig_fname = sig_fname;
cctx.signas = signas;
cctx.ids = ids;
mutt_pgp_command (cmd, sizeof (cmd), &cctx, format);
return mutt_create_filter_fd (cmd, pgpin, pgpout, pgperr,
pgpinfd, pgpoutfd, pgperrfd);
}
/*
* The exported interface.
*
* This is historic and may be removed at some point.
*
*/
pid_t pgp_invoke_decode (FILE **pgpin, FILE **pgpout, FILE **pgperr,
int pgpinfd, int pgpoutfd, int pgperrfd,
const char *fname, short need_passphrase)
{
return pgp_invoke (pgpin, pgpout, pgperr, pgpinfd, pgpoutfd, pgperrfd,
need_passphrase, fname, NULL, NULL, NULL,
PgpDecodeCommand);
}
pid_t pgp_invoke_verify (FILE **pgpin, FILE **pgpout, FILE **pgperr,
int pgpinfd, int pgpoutfd, int pgperrfd,
const char *fname, const char *sig_fname)
{
return pgp_invoke (pgpin, pgpout, pgperr, pgpinfd, pgpoutfd, pgperrfd,
0, fname, sig_fname, NULL, NULL, PgpVerifyCommand);
}
pid_t pgp_invoke_decrypt (FILE **pgpin, FILE **pgpout, FILE **pgperr,
int pgpinfd, int pgpoutfd, int pgperrfd,
const char *fname)
{
return pgp_invoke (pgpin, pgpout, pgperr, pgpinfd, pgpoutfd, pgperrfd,
1, fname, NULL, NULL, NULL, PgpDecryptCommand);
}
pid_t pgp_invoke_sign (FILE **pgpin, FILE **pgpout, FILE **pgperr,
int pgpinfd, int pgpoutfd, int pgperrfd,
const char *fname)
{
return pgp_invoke (pgpin, pgpout, pgperr, pgpinfd, pgpoutfd, pgperrfd,
1, fname, NULL, PgpSignAs, NULL, PgpSignCommand);
}
pid_t pgp_invoke_encrypt (FILE **pgpin, FILE **pgpout, FILE **pgperr,
int pgpinfd, int pgpoutfd, int pgperrfd,
const char *fname, const char *uids, int sign)
{
if (sign)
return pgp_invoke (pgpin, pgpout, pgperr, pgpinfd, pgpoutfd, pgperrfd,
1, fname, NULL, PgpSignAs, uids,
PgpEncryptSignCommand);
else
return pgp_invoke (pgpin, pgpout, pgperr, pgpinfd, pgpoutfd, pgperrfd,
0, fname, NULL, NULL, uids,
PgpEncryptOnlyCommand);
}
pid_t pgp_invoke_traditional (FILE **pgpin, FILE **pgpout, FILE **pgperr,
int pgpinfd, int pgpoutfd, int pgperrfd,
const char *fname, const char *uids, int flags)
{
if (flags & PGPENCRYPT)
return pgp_invoke (pgpin, pgpout, pgperr, pgpinfd, pgpoutfd, pgperrfd,
flags & PGPSIGN ? 1 : 0, fname, NULL, PgpSignAs, uids,
flags & PGPSIGN ? PgpEncryptSignCommand : PgpEncryptOnlyCommand);
else
return pgp_invoke (pgpin, pgpout, pgperr, pgpinfd, pgpoutfd, pgperrfd,
1, fname, NULL, PgpSignAs, NULL,
PgpClearSignCommand);
}
void pgp_invoke_import (const char *fname)
{
char _fname[_POSIX_PATH_MAX + SHORT_STRING];
char cmd[HUGE_STRING];
struct pgp_command_context cctx;
memset (&cctx, 0, sizeof (cctx));
mutt_quote_filename (_fname, sizeof (_fname), fname);
cctx.fname = _fname;
mutt_pgp_command (cmd, sizeof (cmd), &cctx, PgpImportCommand);
mutt_system (cmd);
}
void pgp_invoke_getkeys (ADDRESS *addr)
{
char buff[LONG_STRING];
char tmp[LONG_STRING];
char cmd[HUGE_STRING];
int devnull;
char *personal;
struct pgp_command_context cctx;
if (!PgpGetkeysCommand) return;
memset (&cctx, 0, sizeof (cctx));
personal = addr->personal;
addr->personal = NULL;
*tmp = '\0';
rfc822_write_address_single (tmp, sizeof (tmp), addr);
mutt_quote_filename (buff, sizeof (buff), tmp);
addr->personal = personal;
cctx.ids = buff;
mutt_pgp_command (cmd, sizeof (cmd), &cctx, PgpGetkeysCommand);
devnull = open ("/dev/null", O_RDWR);
if (!isendwin ()) mutt_message _("Fetching PGP key...");
mutt_system (cmd);
if (!isendwin ()) mutt_clear_error ();
close (devnull);
}
pid_t pgp_invoke_export (FILE **pgpin, FILE **pgpout, FILE **pgperr,
int pgpinfd, int pgpoutfd, int pgperrfd,
const char *uids)
{
return pgp_invoke (pgpin, pgpout, pgperr, pgpinfd, pgpoutfd, pgperrfd,
0, NULL, NULL, NULL, uids,
PgpExportCommand);
}
pid_t pgp_invoke_verify_key (FILE **pgpin, FILE **pgpout, FILE **pgperr,
int pgpinfd, int pgpoutfd, int pgperrfd,
const char *uids)
{
return pgp_invoke (pgpin, pgpout, pgperr, pgpinfd, pgpoutfd, pgperrfd,
0, NULL, NULL, NULL, uids,
PgpVerifyKeyCommand);
}
pid_t pgp_invoke_list_keys (FILE **pgpin, FILE **pgpout, FILE **pgperr,
int pgpinfd, int pgpoutfd, int pgperrfd,
pgp_ring_t keyring, LIST *hints)
{
char uids[HUGE_STRING];
char tmpuids[HUGE_STRING];
char quoted[HUGE_STRING];
*uids = '\0';
for (; hints; hints = hints->next)
{
mutt_quote_filename (quoted, sizeof (quoted), (char *) hints->data);
snprintf (tmpuids, sizeof (tmpuids), "%s %s", uids, quoted);
strcpy (uids, tmpuids); /* __STRCPY_CHECKED__ */
}
return pgp_invoke (pgpin, pgpout, pgperr, pgpinfd, pgpoutfd, pgperrfd,
0, NULL, NULL, NULL, uids,
keyring == PGP_SECRING ? PgpListSecringCommand :
PgpListPubringCommand);
}
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