int mutt_prepare_template (FILE *fp, CONTEXT *ctx, HEADER *newhdr, HEADER *hdr,
short weed)
{
MESSAGE *msg = NULL;
char file[_POSIX_PATH_MAX];
BODY *b;
FILE *bfp;
int rv = -1;
STATE s;
memset (&s, 0, sizeof (s));
if (!fp && (msg = mx_open_message (ctx, hdr->msgno)) == NULL)
return (-1);
if (!fp) fp = msg->fp;
bfp = fp;
/* parse the message header and MIME structure */
fseeko (fp, hdr->offset, 0);
newhdr->offset = hdr->offset;
newhdr->env = mutt_read_rfc822_header (fp, newhdr, 1, weed);
newhdr->content->length = hdr->content->length;
mutt_parse_part (fp, newhdr->content);
/* If message_id is set, then we are resending a message and don't want
* message_id or mail_followup_to. Otherwise, we are resuming a
* postponed message, and want to keep the mail_followup_to.
*/
if (newhdr->env->message_id != NULL)
{
FREE (&newhdr->env->message_id);
FREE (&newhdr->env->mail_followup_to);
}
/* decrypt pgp/mime encoded messages */
if ((WithCrypto & (APPLICATION_PGP|APPLICATION_SMIME) & hdr->security)
&& mutt_is_multipart_encrypted (newhdr->content))
{
int ccap = WithCrypto & (APPLICATION_PGP|APPLICATION_SMIME) & hdr->security;
newhdr->security |= ENCRYPT | ccap;
if (!crypt_valid_passphrase (ccap))
goto err;
mutt_message _("Decrypting message...");
if (((ccap & APPLICATION_PGP) && crypt_pgp_decrypt_mime (fp, &bfp, newhdr->content, &b) == -1)
|| ((ccap & APPLICATION_SMIME) && crypt_smime_decrypt_mime (fp, &bfp, newhdr->content, &b) == -1)
|| b == NULL)
{
err:
mx_close_message (&msg);
mutt_free_envelope (&newhdr->env);
mutt_free_body (&newhdr->content);
mutt_error _("Decryption failed.");
return -1;
}
mutt_free_body (&newhdr->content);
newhdr->content = b;
mutt_clear_error ();
}
/*
* remove a potential multipart/signed layer - useful when
* resending messages
*/
if (WithCrypto && mutt_is_multipart_signed (newhdr->content))
{
newhdr->security |= SIGN;
if ((WithCrypto & APPLICATION_PGP)
&& ascii_strcasecmp (mutt_get_parameter ("protocol", newhdr->content->parameter), "application/pgp-signature") == 0)
newhdr->security |= APPLICATION_PGP;
else if ((WithCrypto & APPLICATION_SMIME))
newhdr->security |= APPLICATION_SMIME;
/* destroy the signature */
mutt_free_body (&newhdr->content->parts->next);
newhdr->content = mutt_remove_multipart (newhdr->content);
}
/*
* We don't need no primary multipart.
* Note: We _do_ preserve messages!
*
* XXX - we don't handle multipart/alternative in any
* smart way when sending messages. However, one may
* consider this a feature.
*
*/
if (newhdr->content->type == TYPEMULTIPART)
newhdr->content = mutt_remove_multipart (newhdr->content);
s.fpin = bfp;
/* create temporary files for all attachments */
for (b = newhdr->content; b; b = b->next)
{
/* what follows is roughly a receive-mode variant of
* mutt_get_tmp_attachment () from muttlib.c
*/
file[0] = '\0';
if (b->filename)
{
strfcpy (file, b->filename, sizeof (file));
b->d_filename = safe_strdup (b->filename);
}
else
{
/* avoid Content-Disposition: header with temporary filename */
b->use_disp = 0;
}
/* set up state flags */
s.flags = 0;
if (b->type == TYPETEXT)
{
if (!ascii_strcasecmp ("yes", mutt_get_parameter ("x-mutt-noconv", b->parameter)))
b->noconv = 1;
else
{
s.flags |= M_CHARCONV;
b->noconv = 0;
}
mutt_delete_parameter ("x-mutt-noconv", &b->parameter);
}
mutt_adv_mktemp (file, sizeof(file));
if ((s.fpout = safe_fopen (file, "w")) == NULL)
goto bail;
if ((WithCrypto & APPLICATION_PGP)
&& (mutt_is_application_pgp (b) & (ENCRYPT|SIGN)))
{
mutt_body_handler (b, &s);
newhdr->security |= mutt_is_application_pgp (newhdr->content);
b->type = TYPETEXT;
mutt_str_replace (&b->subtype, "plain");
mutt_delete_parameter ("x-action", &b->parameter);
}
else
mutt_decode_attachment (b, &s);
if (safe_fclose (&s.fpout) != 0)
goto bail;
mutt_str_replace (&b->filename, file);
b->unlink = 1;
mutt_stamp_attachment (b);
mutt_free_body (&b->parts);
if (b->hdr) b->hdr->content = NULL; /* avoid dangling pointer */
}
/* Fix encryption flags. */
/* No inline if multipart. */
if (WithCrypto && (newhdr->security & INLINE) && newhdr->content->next)
newhdr->security &= ~INLINE;
/* Do we even support multiple mechanisms? */
newhdr->security &= WithCrypto | ~(APPLICATION_PGP|APPLICATION_SMIME);
/* Theoretically, both could be set. Take the one the user wants to set by default. */
if ((newhdr->security & APPLICATION_PGP) && (newhdr->security & APPLICATION_SMIME))
{
if (option (OPTSMIMEISDEFAULT))
newhdr->security &= ~APPLICATION_PGP;
else
newhdr->security &= ~APPLICATION_SMIME;
}
rv = 0;
bail:
/* that's it. */
if (bfp != fp) safe_fclose (&bfp);
if (msg) mx_close_message (&msg);
if (rv == -1)
{
mutt_free_envelope (&newhdr->env);
mutt_free_body (&newhdr->content);
}
return rv;
}
/* returns 1 on success, 0 on error */
int mutt_pipe_attachment (FILE *fp, BODY *b, const char *path, char *outfile)
{
pid_t thepid;
int out = -1;
int rv = 0;
if (outfile && *outfile)
if ((out = safe_open (outfile, O_CREAT | O_EXCL | O_WRONLY)) < 0)
{
mutt_perror ("open");
return 0;
}
mutt_endwin (NULL);
if (fp)
{
/* recv case */
STATE s;
memset (&s, 0, sizeof (STATE));
if (outfile && *outfile)
thepid = mutt_create_filter_fd (path, &s.fpout, NULL, NULL, -1, out, -1);
else
thepid = mutt_create_filter (path, &s.fpout, NULL, NULL);
if (thepid < 0)
{
mutt_perror _("Can't create filter");
goto bail;
}
s.fpin = fp;
mutt_decode_attachment (b, &s);
safe_fclose (&s.fpout);
}
else
{
/* send case */
FILE *ifp, *ofp;
if ((ifp = fopen (b->filename, "r")) == NULL)
{
mutt_perror ("fopen");
if (outfile && *outfile)
{
close (out);
unlink (outfile);
}
return 0;
}
if (outfile && *outfile)
thepid = mutt_create_filter_fd (path, &ofp, NULL, NULL, -1, out, -1);
else
thepid = mutt_create_filter (path, &ofp, NULL, NULL);
if (thepid < 0)
{
mutt_perror _("Can't create filter");
safe_fclose (&ifp);
goto bail;
}
mutt_copy_stream (ifp, ofp);
safe_fclose (&ofp);
safe_fclose (&ifp);
}
rv = 1;
bail:
if (outfile && *outfile)
close (out);
/*
* check for error exit from child process
*/
if (mutt_wait_filter (thepid) != 0)
rv = 0;
if (rv == 0 || option (OPTWAITKEY))
mutt_any_key_to_continue (NULL);
return rv;
}
/* returns 0 on success, -1 on error */
int mutt_save_attachment (FILE *fp, BODY *m, char *path, int flags, HEADER *hdr)
{
if (fp)
{
/* recv mode */
if(hdr &&
m->hdr &&
m->encoding != ENCBASE64 &&
m->encoding != ENCQUOTEDPRINTABLE &&
mutt_is_message_type(m->type, m->subtype))
{
/* message type attachments are written to mail folders. */
char buf[HUGE_STRING];
HEADER *hn;
CONTEXT ctx;
MESSAGE *msg;
int chflags = 0;
int r = -1;
hn = m->hdr;
hn->msgno = hdr->msgno; /* required for MH/maildir */
hn->read = 1;
fseeko (fp, m->offset, 0);
if (fgets (buf, sizeof (buf), fp) == NULL)
return -1;
if (mx_open_mailbox(path, M_APPEND | M_QUIET, &ctx) == NULL)
return -1;
if ((msg = mx_open_new_message (&ctx, hn, is_from (buf, NULL, 0, NULL) ? 0 : M_ADD_FROM)) == NULL)
{
mx_close_mailbox(&ctx, NULL);
return -1;
}
if (ctx.magic == M_MBOX || ctx.magic == M_MMDF)
chflags = CH_FROM | CH_UPDATE_LEN;
chflags |= (ctx.magic == M_MAILDIR ? CH_NOSTATUS : CH_UPDATE);
if (_mutt_copy_message (msg->fp, fp, hn, hn->content, 0, chflags) == 0
&& mx_commit_message (msg, &ctx) == 0)
r = 0;
else
r = -1;
mx_close_message (&msg);
mx_close_mailbox (&ctx, NULL);
return r;
}
else
{
/* In recv mode, extract from folder and decode */
STATE s;
memset (&s, 0, sizeof (s));
s.flags |= M_CHARCONV;
if ((s.fpout = mutt_save_attachment_open (path, flags)) == NULL)
{
mutt_perror ("fopen");
mutt_sleep (2);
return (-1);
}
fseeko ((s.fpin = fp), m->offset, 0);
mutt_decode_attachment (m, &s);
if (fclose (s.fpout) != 0)
{
mutt_perror ("fclose");
mutt_sleep (2);
return (-1);
}
}
}
else
{
/* In send mode, just copy file */
FILE *ofp, *nfp;
if ((ofp = fopen (m->filename, "r")) == NULL)
{
mutt_perror ("fopen");
return (-1);
}
if ((nfp = mutt_save_attachment_open (path, flags)) == NULL)
{
mutt_perror ("fopen");
safe_fclose (&ofp);
return (-1);
}
if (mutt_copy_stream (ofp, nfp) == -1)
{
mutt_error _("Write fault!");
safe_fclose (&ofp);
safe_fclose (&nfp);
return (-1);
}
safe_fclose (&ofp);
safe_fclose (&nfp);
}
return 0;
}
/* returns -1 on error, 0 or the return code from mutt_do_pager() on success */
int mutt_view_attachment (FILE *fp, BODY *a, int flag, HEADER *hdr,
ATTACHPTR **idx, short idxlen)
{
char tempfile[_POSIX_PATH_MAX] = "";
char pagerfile[_POSIX_PATH_MAX] = "";
int is_message;
int use_mailcap;
int use_pipe = 0;
int use_pager = 1;
char type[STRING];
char command[HUGE_STRING];
char descrip[STRING];
char *fname;
rfc1524_entry *entry = NULL;
int rc = -1;
int unlink_tempfile = 0;
is_message = mutt_is_message_type(a->type, a->subtype);
if (WithCrypto && is_message && a->hdr && (a->hdr->security & ENCRYPT) &&
!crypt_valid_passphrase(a->hdr->security))
return (rc);
use_mailcap = (flag == M_MAILCAP ||
(flag == M_REGULAR && mutt_needs_mailcap (a)));
snprintf (type, sizeof (type), "%s/%s", TYPE (a), a->subtype);
if (use_mailcap) {
entry = rfc1524_new_entry ();
if (!rfc1524_mailcap_lookup (a, type, entry, 0)) {
if (flag == M_REGULAR) {
/* fallback to view as text */
rfc1524_free_entry (&entry);
mutt_error _("No matching mailcap entry found. Viewing as text.");
flag = M_AS_TEXT;
use_mailcap = 0;
}
else
goto return_error;
}
}
if (use_mailcap) {
if (!entry->command) {
mutt_error _("MIME type not defined. Cannot view attachment.");
goto return_error;
}
strfcpy (command, entry->command, sizeof (command));
if (fp) {
fname = safe_strdup (a->filename);
mutt_sanitize_filename (fname, 1);
}
else
fname = a->filename;
if (rfc1524_expand_filename (entry->nametemplate, fname,
tempfile, sizeof (tempfile))) {
if (fp == NULL && mutt_strcmp(tempfile, a->filename)) {
/* send case: the file is already there */
if (safe_symlink (a->filename, tempfile) == -1) {
if (mutt_yesorno (_("Can't match nametemplate, continue?"), M_YES) == M_YES)
strfcpy (tempfile, a->filename, sizeof (tempfile));
else
goto return_error;
}
else
unlink_tempfile = 1;
}
}
else if (fp == NULL) /* send case */
strfcpy (tempfile, a->filename, sizeof (tempfile));
if (fp) {
/* recv case: we need to save the attachment to a file */
FREE (&fname);
if (mutt_save_attachment (fp, a, tempfile, 0, NULL) == -1)
goto return_error;
}
use_pipe = rfc1524_expand_command (a, tempfile, type,
command, sizeof (command));
use_pager = entry->copiousoutput;
}
if (use_pager) {
if (fp && !use_mailcap && a->filename) {
/* recv case */
strfcpy (pagerfile, a->filename, sizeof (pagerfile));
mutt_adv_mktemp (pagerfile, sizeof(pagerfile));
}
else
mutt_mktemp (pagerfile, sizeof (pagerfile));
}
if (use_mailcap) {
pid_t thepid = 0;
int tempfd = -1, pagerfd = -1;
if (!use_pager)
mutt_endwin (NULL);
if (use_pager || use_pipe) {
if (use_pager && ((pagerfd = safe_open (pagerfile, O_CREAT | O_EXCL | O_WRONLY)) == -1)) {
mutt_perror ("open");
goto return_error;
}
if (use_pipe && ((tempfd = open (tempfile, 0)) == -1)) {
if(pagerfd != -1)
close(pagerfd);
mutt_perror ("open");
goto return_error;
}
if ((thepid = mutt_create_filter_fd (command, NULL, NULL, NULL,
use_pipe ? tempfd : -1, use_pager ? pagerfd : -1, -1)) == -1) {
if(pagerfd != -1)
close(pagerfd);
if(tempfd != -1)
close(tempfd);
mutt_error _("Cannot create filter");
goto return_error;
}
if (use_pager) {
if (a->description)
snprintf (descrip, sizeof (descrip),
_("---Command: %-20.20s Description: %s"),
command, a->description);
else
snprintf (descrip, sizeof (descrip),
_("---Command: %-30.30s Attachment: %s"), command, type);
}
if ((mutt_wait_filter (thepid) || (entry->needsterminal &&
option (OPTWAITKEY))) && !use_pager)
mutt_any_key_to_continue (NULL);
if (tempfd != -1)
close (tempfd);
if (pagerfd != -1)
close (pagerfd);
}
else {
/* interactive command */
if (mutt_system (command) ||
(entry->needsterminal && option (OPTWAITKEY)))
mutt_any_key_to_continue (NULL);
}
}
else {
/* Don't use mailcap; the attachment is viewed in the pager */
if (flag == M_AS_TEXT) {
/* just let me see the raw data */
if (fp) {
/* Viewing from a received message.
*
* Don't use mutt_save_attachment() because we want to perform charset
* conversion since this will be displayed by the internal pager.
*/
STATE decode_state;
memset(&decode_state, 0, sizeof(decode_state));
decode_state.fpout = safe_fopen(pagerfile, "w");
if (!decode_state.fpout) {
dprint(1, (debugfile, "mutt_view_attachment:%d safe_fopen(%s) errno=%d %s\n", __LINE__, pagerfile, errno, strerror(errno)));
mutt_perror(pagerfile);
mutt_sleep(1);
goto return_error;
}
decode_state.fpin = fp;
decode_state.flags = M_CHARCONV;
mutt_decode_attachment(a, &decode_state);
if (fclose(decode_state.fpout) == EOF)
dprint(1, (debugfile, "mutt_view_attachment:%d fclose errno=%d %s\n", __LINE__, pagerfile, errno, strerror(errno)));
}
else {
/* in compose mode, just copy the file. we can't use
* mutt_decode_attachment() since it assumes the content-encoding has
* already been applied
*/
if (mutt_save_attachment(fp, a, pagerfile, 0, NULL))
goto return_error;
}
}
else {
/* Use built-in handler */
set_option (OPTVIEWATTACH);
/* disable the "use 'v' to view this part"
* message in case of error */
if (mutt_decode_save_attachment (fp, a, pagerfile, M_DISPLAY, 0)) {
unset_option (OPTVIEWATTACH);
goto return_error;
}
unset_option (OPTVIEWATTACH);
}
if (a->description)
strfcpy (descrip, a->description, sizeof (descrip));
else if (a->filename)
snprintf (descrip, sizeof (descrip), _("---Attachment: %s: %s"),
a->filename, type);
else
snprintf (descrip, sizeof (descrip), _("---Attachment: %s"), type);
}
/* We only reach this point if there have been no errors */
if (use_pager) {
pager_t info;
memset (&info, 0, sizeof (info));
info.fp = fp;
info.bdy = a;
info.ctx = Context;
info.idx = idx;
info.idxlen = idxlen;
info.hdr = hdr;
rc = mutt_do_pager (descrip, pagerfile,
M_PAGER_ATTACHMENT | (is_message ? M_PAGER_MESSAGE : 0), &info);
*pagerfile = '\0';
}
else
rc = 0;
return_error:
if (entry)
rfc1524_free_entry (&entry);
if (fp && tempfile[0])
mutt_unlink (tempfile);
else if (unlink_tempfile)
unlink(tempfile);
if (pagerfile[0])
mutt_unlink (pagerfile);
return rc;
}
