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/*
* Copyright (C) 1996-2000 Michael R. Elkins
*
* 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.
*/

#include "mutt.h"
#include "mutt_curses.h"
#include "rfc2047.h"
#include "keymap.h"
#include "mime.h"
#include "mailbox.h"
#include "copy.h"
#include "mx.h"

#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include

#ifdef HAVE_PGP
#include "pgp.h"
#endif

#ifdef MIXMASTER
#include "remailer.h"
#endif


static void append_signature (FILE *f)
{
FILE *tmpfp;
pid_t thepid;

if (Signature && (tmpfp = mutt_open_read (Signature, &thepid)))
{
if (option (OPTSIGDASHES))
fputs ("\n-- \n", f);
mutt_copy_stream (tmpfp, f);
fclose (tmpfp);
if (thepid != -1)
mutt_wait_filter (thepid);
}
}

/* compare two e-mail addresses and return 1 if they are equivalent */
static int mutt_addrcmp (ADDRESS *a, ADDRESS *b)
{
if (!a->mailbox || !b->mailbox)
return 0;
if (ascii_strcasecmp (a->mailbox, b->mailbox))
return 0;
return 1;
}

/* search an e-mail address in a list */
static int mutt_addrsrc (ADDRESS *a, ADDRESS *lst)
{
for (; lst; lst = lst->next)
{
if (mutt_addrcmp (a, lst))
return (1);
}
return (0);
}

/* removes addresses from "b" which are contained in "a" */
static ADDRESS *mutt_remove_xrefs (ADDRESS *a, ADDRESS *b)
{
ADDRESS *top, *p, *prev = NULL;

top = b;
while (b)
{
for (p = a; p; p = p->next)
{
if (mutt_addrcmp (p, b))
break;
}
if (p)
{
if (prev)
{
prev->next = b->next;
b->next = NULL;
rfc822_free_address (&b);
b = prev;
}
else
{
top = top->next;
b->next = NULL;
rfc822_free_address (&b);
b = top;
}
}
else
{
prev = b;
b = b->next;
}
}
return top;
}

/* remove any address which matches the current user. if `leave_only' is
* nonzero, don't remove the user's address if it is the only one in the list
*/
static ADDRESS *remove_user (ADDRESS *a, int leave_only)
{
ADDRESS *top = NULL, *last = NULL;

while (a)
{
if (!mutt_addr_is_user (a))
{
if (top)
{
last->next = a;
last = last->next;
}
else
last = top = a;
a = a->next;
last->next = NULL;
}
else
{
ADDRESS *tmp = a;

a = a->next;
if (!leave_only || a || last)
{
tmp->next = NULL;
rfc822_free_address (&tmp);
}
else
last = top = tmp;
}
}
return top;
}

static ADDRESS *find_mailing_lists (ADDRESS *t, ADDRESS *c)
{
ADDRESS *top = NULL, *ptr = NULL;

for (; t || c; t = c, c = NULL)
{
for (; t; t = t->next)
{
if (mutt_is_mail_list (t) && !t->group)
{
if (top)
{
ptr->next = rfc822_cpy_adr_real (t);
ptr = ptr->next;
}
else
ptr = top = rfc822_cpy_adr_real (t);
}
}
}
return top;
}

static int edit_address (ADDRESS **a, /* const */ char *field)
{
char buf[HUGE_STRING];

buf[0] = 0;
rfc822_write_address (buf, sizeof (buf), *a);
if (mutt_get_field (field, buf, sizeof (buf), M_ALIAS) != 0)
return (-1);
rfc822_free_address (a);
*a = mutt_expand_aliases (mutt_parse_adrlist (NULL, buf));
return 0;
}

static int edit_envelope (ENVELOPE *en)
{
char buf[HUGE_STRING];
LIST *uh = UserHeader;

if (edit_address (&en->to, "To: ") == -1 || en->to == NULL)
return (-1);
if (option (OPTASKCC) && edit_address (&en->cc, "Cc: ") == -1)
return (-1);
if (option (OPTASKBCC) && edit_address (&en->bcc, "Bcc: ") == -1)
return (-1);

if (en->subject)
{
if (option (OPTFASTREPLY))
return (0);
else
strfcpy (buf, en->subject, sizeof (buf));
}
else
{
char *p;

buf[0] = 0;
for (; uh; uh = uh->next)
{
if (ascii_strncasecmp ("subject:", uh->data, 8) == 0)
{
p = uh->data + 8;
SKIPWS (p);
strncpy (buf, p, sizeof (buf));
}
}
}

if (mutt_get_field ("Subject: ", buf, sizeof (buf), 0) != 0 ||
(!buf[0] && query_quadoption (OPT_SUBJECT, _("No subject, abort?")) != 0))
{
mutt_message _("No subject, aborting.");
return (-1);
}
mutt_str_replace (&en->subject, buf);

return 0;
}

static void process_user_recips (ENVELOPE *env)
{
LIST *uh = UserHeader;

for (; uh; uh = uh->next)
{
if (ascii_strncasecmp ("to:", uh->data, 3) == 0)
env->to = rfc822_parse_adrlist (env->to, uh->data + 3);
else if (ascii_strncasecmp ("cc:", uh->data, 3) == 0)
env->cc = rfc822_parse_adrlist (env->cc, uh->data + 3);
else if (ascii_strncasecmp ("bcc:", uh->data, 4) == 0)
env->bcc = rfc822_parse_adrlist (env->bcc, uh->data + 4);
}
}

static void process_user_header (ENVELOPE *env)
{
LIST *uh = UserHeader;
LIST *last = env->userhdrs;

if (last)
while (last->next)
last = last->next;

for (; uh; uh = uh->next)
{
if (ascii_strncasecmp ("from:", uh->data, 5) == 0)
{
/* User has specified a default From: address. Remove default address */
rfc822_free_address (&env->from);
env->from = rfc822_parse_adrlist (env->from, uh->data + 5);
}
else if (ascii_strncasecmp ("reply-to:", uh->data, 9) == 0)
{
rfc822_free_address (&env->reply_to);
env->reply_to = rfc822_parse_adrlist (env->reply_to, uh->data + 9);
}
else if (ascii_strncasecmp ("message-id:", uh->data, 11) == 0)
mutt_str_replace (&env->message_id, uh->data + 11);
else if (ascii_strncasecmp ("to:", uh->data, 3) != 0 &&
ascii_strncasecmp ("cc:", uh->data, 3) != 0 &&
ascii_strncasecmp ("bcc:", uh->data, 4) != 0 &&
ascii_strncasecmp ("subject:", uh->data, 8) != 0)
{
if (last)
{
last->next = mutt_new_list ();
last = last->next;
}
else
last = env->userhdrs = mutt_new_list ();
last->data = safe_strdup (uh->data);
}
}
}

LIST *mutt_copy_list (LIST *p)
{
LIST *t, *r=NULL, *l=NULL;

for (; p; p = p->next)
{
t = (LIST *) safe_malloc (sizeof (LIST));
t->data = safe_strdup (p->data);
t->next = NULL;
if (l)
{
r->next = t;
r = r->next;
}
else
l = r = t;
}
return (l);
}

void mutt_forward_intro (FILE *fp, HEADER *cur)
{
char buffer[STRING];

fputs ("----- Forwarded message from ", fp);
buffer[0] = 0;
rfc822_write_address (buffer, sizeof (buffer), cur->env->from);
fputs (buffer, fp);
fputs (" -----\n\n", fp);
}

void mutt_forward_trailer (FILE *fp)
{
fputs ("\n----- End forwarded message -----\n", fp);
}


static int include_forward (CONTEXT *ctx, HEADER *cur, FILE *out)
{
int chflags = CH_DECODE, cmflags = 0;

mutt_parse_mime_message (ctx, cur);
mutt_message_hook (ctx, cur, M_MESSAGEHOOK);

#ifdef HAVE_PGP
if ((cur->pgp & PGPENCRYPT) && option (OPTFORWDECODE))
{
/* make sure we have the user's passphrase before proceeding... */
pgp_valid_passphrase ();
}
#endif /* HAVE_PGP */

mutt_forward_intro (out, cur);

if (option (OPTFORWDECODE))
{
cmflags |= M_CM_DECODE | M_CM_CHARCONV;
if (option (OPTWEED))
{
chflags |= CH_WEED | CH_REORDER;
cmflags |= M_CM_WEED;
}
}
if (option (OPTFORWQUOTE))
cmflags |= M_CM_PREFIX;

mutt_copy_message (out, ctx, cur, cmflags, chflags);
mutt_forward_trailer (out);
return 0;
}

void mutt_make_attribution (CONTEXT *ctx, HEADER *cur, FILE *out)
{
char buffer[STRING];
if (Attribution)
{
mutt_make_string (buffer, sizeof (buffer), Attribution, ctx, cur);
fputs (buffer, out);
fputc ('\n', out);
}
}

void mutt_make_post_indent (CONTEXT *ctx, HEADER *cur, FILE *out)
{
char buffer[STRING];
if (PostIndentString)
{
mutt_make_string (buffer, sizeof (buffer), PostIndentString, ctx, cur);
fputs (buffer, out);
fputc ('\n', out);
}
}

static int include_reply (CONTEXT *ctx, HEADER *cur, FILE *out)
{
int cmflags = M_CM_PREFIX | M_CM_DECODE | M_CM_CHARCONV;
int chflags = CH_DECODE;

#ifdef HAVE_PGP
if (cur->pgp)
{
if (cur->pgp & PGPENCRYPT)
{
/* make sure we have the user's passphrase before proceeding... */
pgp_valid_passphrase ();
}
}
#endif /* HAVE_PGP */

mutt_parse_mime_message (ctx, cur);
mutt_message_hook (ctx, cur, M_MESSAGEHOOK);

mutt_make_attribution (ctx, cur, out);

if (!option (OPTHEADER))
cmflags |= M_CM_NOHEADER;
if (option (OPTWEED))
{
chflags |= CH_WEED;
cmflags |= M_CM_WEED;
}

mutt_copy_message (out, ctx, cur, cmflags, chflags);

mutt_make_post_indent (ctx, cur, out);

return 0;
}

static int default_to (ADDRESS **to, ENVELOPE *env, int flags)
{
char prompt[STRING];

if (flags && env->mail_followup_to)
{
snprintf (prompt, sizeof (prompt), _("Follow-up to %s%s?"),
env->mail_followup_to->mailbox,
env->mail_followup_to->next ? ",..." : "");

switch (query_quadoption (OPT_MFUPTO, prompt))
{
case M_YES:
rfc822_append (to, env->mail_followup_to);
return 0;

case -1:
return -1; /* abort */
}
}

/* Exit now if we're setting up the default Cc list for list-reply
* (only set if Mail-Followup-To is present and honoured).
*/
if (flags & SENDLISTREPLY)
return 0;

if (!option(OPTREPLYSELF) && mutt_addr_is_user (env->from))
{
/* mail is from the user, assume replying to recipients */
rfc822_append (to, env->to);
}
else if (env->reply_to)
{
if ((mutt_addrcmp (env->from, env->reply_to) && !env->reply_to->next) ||
(option (OPTIGNORELISTREPLYTO) &&
mutt_is_mail_list (env->reply_to) &&
(mutt_addrsrc (env->reply_to, env->to) ||
mutt_addrsrc (env->reply_to, env->cc))))
{
/* If the Reply-To: address is a mailing list, assume that it was
* put there by the mailing list, and use the From: address
*
* We also take the from header if our correspondant has a reply-to
* header which is identical to the electronic mail address given
* in his From header.
*
*/
rfc822_append (to, env->from);
}
else if (!(mutt_addrcmp (env->from, env->reply_to) &&
!env->reply_to->next) &&
quadoption (OPT_REPLYTO) != M_YES)
{
/* There are quite a few mailing lists which set the Reply-To:
* header field to the list address, which makes it quite impossible
* to send a message to only the sender of the message. This
* provides a way to do that.
*/
snprintf (prompt, sizeof (prompt), _("Reply to %s%s?"),
env->reply_to->mailbox,
env->reply_to->next?",...":"");
switch (query_quadoption (OPT_REPLYTO, prompt))
{
case M_YES:
rfc822_append (to, env->reply_to);
break;

case M_NO:
rfc822_append (to, env->from);
break;

default:
return (-1); /* abort */
}
}
else
rfc822_append (to, env->reply_to);
}
else
rfc822_append (to, env->from);

return (0);
}

int mutt_fetch_recips (ENVELOPE *out, ENVELOPE *in, int flags)
{
ADDRESS *tmp;
if (flags & SENDLISTREPLY)
{
tmp = find_mailing_lists (in->to, in->cc);
rfc822_append (&out->to, tmp);
rfc822_free_address (&tmp);

if (in->mail_followup_to &&
default_to (&out->cc, in, flags & SENDLISTREPLY) == -1)
return (-1); /* abort */
}
else
{
if (default_to (&out->to, in, flags & SENDGROUPREPLY) == -1)
return (-1); /* abort */

if ((flags & SENDGROUPREPLY) && !in->mail_followup_to)
{
/* if(!mutt_addr_is_user(in->to)) */
rfc822_append (&out->cc, in->to);
rfc822_append (&out->cc, in->cc);
}
}
return 0;
}

LIST *mutt_make_references(ENVELOPE *e)
{
LIST *t = NULL, *l = NULL;

if (e->references)
l = mutt_copy_list (e->references);
else
l = mutt_copy_list (e->in_reply_to);

if (e->message_id)
{
t = mutt_new_list();
t->data = safe_strdup(e->message_id);
t->next = l;
l = t;
}

return l;
}

void mutt_fix_reply_recipients (ENVELOPE *env)
{
if (! option (OPTMETOO))
{
/* the order is important here. do the CC: first so that if the
* the user is the only recipient, it ends up on the TO: field
*/
env->cc = remove_user (env->cc, (env->to == NULL));
env->to = remove_user (env->to, (env->cc == NULL));
}

/* the CC field can get cluttered, especially with lists */
env->to = mutt_remove_duplicates (env->to);
env->cc = mutt_remove_duplicates (env->cc);
env->cc = mutt_remove_xrefs (env->to, env->cc);
}

void mutt_make_forward_subject (ENVELOPE *env, CONTEXT *ctx, HEADER *cur)
{
char buffer[STRING];

/* set the default subject for the message. */
mutt_make_string (buffer, sizeof (buffer), NONULL(ForwFmt), ctx, cur);
env->subject = safe_strdup (buffer);
}

void mutt_make_misc_reply_headers (ENVELOPE *env, CONTEXT *ctx,
HEADER *cur, ENVELOPE *curenv)
{
if (curenv->real_subj)
{
env->subject = safe_malloc (mutt_strlen (curenv->real_subj) + 5);
sprintf (env->subject, "Re: %s", curenv->real_subj); /* __SPRINTF_CHECKED__ */
}
else
env->subject = safe_strdup ("Re: your mail");

}

void mutt_add_to_reference_headers (ENVELOPE *env, ENVELOPE *curenv, LIST ***pp, LIST ***qq)
{
LIST **p = NULL, **q = NULL;

if (pp) p = *pp;
if (qq) q = *qq;

if (!p) p = &env->references;
if (!q) q = &env->in_reply_to;

while (*p) p = &(*p)->next;
while (*q) q = &(*q)->next;

*p = mutt_make_references (curenv);

if (curenv->message_id)
{
*q = mutt_new_list();
(*q)->data = safe_strdup (curenv->message_id);
}

if (pp) *pp = p;
if (qq) *qq = q;

}

static void
mutt_make_reference_headers (ENVELOPE *curenv, ENVELOPE *env, CONTEXT *ctx)
{
env->references = NULL;
env->in_reply_to = NULL;

if (!curenv)
{
HEADER *h;
LIST **p = NULL, **q = NULL;
int i;

for(i = 0; i < ctx->vcount; i++)
{
h = ctx->hdrs[ctx->v2r[i]];
if (h->tagged)
mutt_add_to_reference_headers (env, h->env, &p, &q);
}
}
else
mutt_add_to_reference_headers (env, curenv, NULL, NULL);
}

static int
envelope_defaults (ENVELOPE *env, CONTEXT *ctx, HEADER *cur, int flags)
{
ENVELOPE *curenv = NULL;
int i = 0, tag = 0;

if (!cur)
{
tag = 1;
for (i = 0; i < ctx->vcount; i++)
if (ctx->hdrs[ctx->v2r[i]]->tagged)
{
cur = ctx->hdrs[ctx->v2r[i]];
curenv = cur->env;
break;
}

if (!cur)
{
/* This could happen if the user tagged some messages and then did
* a limit such that none of the tagged message are visible.
*/
mutt_error _("No tagged messages are visible!");
return (-1);
}
}
else
curenv = cur->env;

if (flags & SENDREPLY)
{
if (tag)
{
HEADER *h;

for (i = 0; i < ctx->vcount; i++)
{
h = ctx->hdrs[ctx->v2r[i]];
if (h->tagged && mutt_fetch_recips (env, h->env, flags) == -1)
return -1;
}
}
else if (mutt_fetch_recips (env, curenv, flags) == -1)
return -1;

if ((flags & SENDLISTREPLY) && !env->to)
{
mutt_error _("No mailing lists found!");
return (-1);
}

mutt_fix_reply_recipients (env);
mutt_make_misc_reply_headers (env, ctx, cur, curenv);
mutt_make_reference_headers (tag ? NULL : curenv, env, ctx);
}
else if (flags & SENDFORWARD)
mutt_make_forward_subject (env, ctx, cur);

return (0);
}

static int
generate_body (FILE *tempfp, /* stream for outgoing message */
HEADER *msg, /* header for outgoing message */
int flags, /* compose mode */
CONTEXT *ctx, /* current mailbox */
HEADER *cur) /* current message */
{
int i;
HEADER *h;
BODY *tmp;

if (flags & SENDREPLY)
{
if ((i = query_quadoption (OPT_INCLUDE, _("Include message in reply?"))) == -1)
return (-1);

if (i == M_YES)
{
mutt_message _("Including quoted message...");
if (!cur)
{
for (i = 0; i < ctx->vcount; i++)
{
h = ctx->hdrs[ctx->v2r[i]];
if (h->tagged)
{
if (include_reply (ctx, h, tempfp) == -1)
{
mutt_error _("Could not include all requested messages!");
return (-1);
}
fputc ('\n', tempfp);
}
}
}
else
include_reply (ctx, cur, tempfp);

}
}
else if (flags & SENDFORWARD)
{
if ((i = query_quadoption (OPT_MIMEFWD, _("Forward as attachment?"))) == M_YES)
{
BODY *last = msg->content;

mutt_message _("Preparing forwarded message...");

while (last && last->next)
last = last->next;

if (cur)
{
tmp = mutt_make_message_attach (ctx, cur, 0);
if (last)
last->next = tmp;
else
msg->content = tmp;
}
else
{
for (i = 0; i < ctx->vcount; i++)
{
if (ctx->hdrs[ctx->v2r[i]]->tagged)
{
tmp = mutt_make_message_attach (ctx, ctx->hdrs[ctx->v2r[i]], 0);
if (last)
{
last->next = tmp;
last = tmp;
}
else
last = msg->content = tmp;
}
}
}
}
else if (i != -1)
{
if (cur)
include_forward (ctx, cur, tempfp);
else
for (i=0; i < ctx->vcount; i++)
if (ctx->hdrs[ctx->v2r[i]]->tagged)
include_forward (ctx, ctx->hdrs[ctx->v2r[i]], tempfp);
}
else if (i == -1)
return -1;
}



#ifdef HAVE_PGP
else if (flags & SENDKEY)
{
BODY *tmp;
if ((tmp = pgp_make_key_attachment (NULL)) == NULL)
return -1;

tmp->next = msg->content;
msg->content = tmp;
}
#endif

mutt_clear_error ();

return (0);
}

void mutt_set_followup_to (ENVELOPE *e)
{
ADDRESS *t = NULL;
ADDRESS *from;

/*
* Only generate the Mail-Followup-To if the user has requested it, and
* it hasn't already been set
*/

if (option (OPTFOLLOWUPTO) && !e->mail_followup_to)
{
if (mutt_is_list_cc (0, e->to, e->cc))
{
/*
* this message goes to known mailing lists, so create a proper
* mail-followup-to header
*/

t = rfc822_append (&e->mail_followup_to, e->to);
rfc822_append (&t, e->cc);
}

/* remove ourselves from the mail-followup-to header */
e->mail_followup_to = remove_user (e->mail_followup_to, 0);

/*
* If we are not subscribed to any of the lists in question,
* re-add ourselves to the mail-followup-to header. The
* mail-followup-to header generated is a no-op with group-reply,
* but makes sure list-reply has the desired effect.
*/

if (e->mail_followup_to && !mutt_is_list_recipient (0, e->to, e->cc))
{
if (e->from)
from = rfc822_cpy_adr (e->from);
else
from = mutt_default_from ();

if (from)
{
/* Normally, this loop will not even be entered. */
for (t = from; t && t->next; t = t->next)
;

t->next = e->mail_followup_to; /* t cannot be NULL at this point. */
e->mail_followup_to = from;
}
}

e->mail_followup_to = mutt_remove_duplicates (e->mail_followup_to);

}
}


/* look through the recipients of the message we are replying to, and if
we find an address that matches $alternates, we use that as the default
from field */
static ADDRESS *set_reverse_name (ENVELOPE *env)
{
ADDRESS *tmp;

for (tmp = env->to; tmp; tmp = tmp->next)
{
if (mutt_addr_is_user (tmp))
break;
}
if (!tmp)
{
for (tmp = env->cc; tmp; tmp = tmp->next)
{
if (mutt_addr_is_user (tmp))
break;
}
}
if (!tmp && mutt_addr_is_user (env->from))
tmp = env->from;
if (tmp)
{
tmp = rfc822_cpy_adr_real (tmp);
if (!option (OPTREVREAL))
FREE (&tmp->personal);
if (!tmp->personal)
tmp->personal = safe_strdup (Realname);
}
return (tmp);
}

ADDRESS *mutt_default_from (void)
{
ADDRESS *adr;
const char *fqdn = mutt_fqdn(1);

/*
* Note: We let $from override $realname here. Is this the right
* thing to do?
*/

if (From)
adr = rfc822_cpy_adr_real (From);
else if (option (OPTUSEDOMAIN))
{
adr = rfc822_new_address ();
adr->mailbox = safe_malloc (mutt_strlen (Username) + mutt_strlen (fqdn) + 2);
sprintf (adr->mailbox, "%s@%s", NONULL(Username), NONULL(fqdn)); /* __SPRINTF_CHECKED__ */
}
else
{
adr = rfc822_new_address ();
adr->mailbox = safe_strdup (NONULL(Username));
}

return (adr);
}

static int send_message (HEADER *msg)
{
char tempfile[_POSIX_PATH_MAX];
FILE *tempfp;
int i;

/* Write out the message in MIME form. */
mutt_mktemp (tempfile);
if ((tempfp = safe_fopen (tempfile, "w")) == NULL)
return (-1);

#ifdef MIXMASTER
mutt_write_rfc822_header (tempfp, msg->env, msg->content, 0, msg->chain ? 1 : 0);
#endif
#ifndef MIXMASTER
mutt_write_rfc822_header (tempfp, msg->env, msg->content, 0, 0);
#endif

fputc ('\n', tempfp); /* tie off the header. */

if ((mutt_write_mime_body (msg->content, tempfp) == -1))
{
fclose(tempfp);
unlink (tempfile);
return (-1);
}

if (fclose (tempfp) != 0)
{
mutt_perror (tempfile);
unlink (tempfile);
return (-1);
}

#ifdef MIXMASTER
if (msg->chain)
return mix_send_message (msg->chain, tempfile);
#endif

i = mutt_invoke_sendmail (msg->env->from, msg->env->to, msg->env->cc,
msg->env->bcc, tempfile, (msg->content->encoding == ENC8BIT));
return (i);
}

/* rfc2047 encode the content-descriptions */
static void encode_descriptions (BODY *b, short recurse)
{
BODY *t;

for (t = b; t; t = t->next)
{
if (t->description)
{
rfc2047_encode_string (&t->description);
}
if (recurse && t->parts)
encode_descriptions (t->parts, recurse);
}
}

/* rfc2047 decode them in case of an error */
static void decode_descriptions (BODY *b)
{
BODY *t;

for (t = b; t; t = t->next)
{
if (t->description)
{
rfc2047_decode (&t->description);
}
if (t->parts)
decode_descriptions (t->parts);
}
}

int mutt_resend_message (FILE *fp, CONTEXT *ctx, HEADER *cur)
{
HEADER *msg = mutt_new_header ();

if (mutt_prepare_template (fp, ctx, msg, cur, 1) < 0)
return -1;

return ci_send_message (SENDRESEND, msg, NULL, ctx, cur);
}

#ifdef HAVE_PGP

static int _set_pgp_flags (HEADER *cur)
{
int flags = 0;

if (option (OPTPGPREPLYENCRYPT) && cur && cur->pgp & PGPENCRYPT)
flags |= PGPENCRYPT;
if (option (OPTPGPREPLYSIGN) && cur && cur->pgp & PGPSIGN)
flags |= PGPSIGN;
if (option (OPTPGPREPLYSIGNENCRYPTED) && cur && cur->pgp & PGPENCRYPT)
flags |= PGPSIGN;

return flags;

}

static int set_pgp_flags (HEADER *cur, CONTEXT *ctx)
{
int i;
int flags = 0;

if (cur)
return _set_pgp_flags (cur);

if (!ctx)
return 0;

for (i = 0; i < ctx->vcount; i++)
{
cur = ctx->hdrs[ctx->v2r[i]];
if (cur->tagged)
flags |= _set_pgp_flags (cur);
}

return flags;
}

#endif /* HAVE_PGP */

int
ci_send_message (int flags, /* send mode */
HEADER *msg, /* template to use for new message */
char *tempfile, /* file specified by -i or -H */
CONTEXT *ctx, /* current mailbox */
HEADER *cur) /* current message */
{
char buffer[LONG_STRING];
char fcc[_POSIX_PATH_MAX] = ""; /* where to copy this message */
FILE *tempfp = NULL;
BODY *pbody;
int i, killfrom = 0;

#ifdef HAVE_PGP
BODY *save_content = NULL;
BODY *clear_content = NULL;
char *pgpkeylist = NULL;
/* save current value of "pgp_sign_as" */
char *signas = NULL;
#endif

int rv = -1;

if (!flags && !msg && quadoption (OPT_RECALL) != M_NO &&
mutt_num_postponed (1))
{
/* If the user is composing a new message, check to see if there
* are any postponed messages first.
*/
if ((i = query_quadoption (OPT_RECALL, _("Recall postponed message?"))) == -1)
return rv;

if(i == M_YES)
flags |= SENDPOSTPONED;
}


#ifdef HAVE_PGP
if (flags & SENDPOSTPONED)
signas = safe_strdup(PgpSignAs);
#endif /* HAVE_PGP */

if (msg)
{
mutt_expand_aliases_env (msg->env);
}
else
{
msg = mutt_new_header ();

if (flags == SENDPOSTPONED)
{
if ((flags = mutt_get_postponed (ctx, msg, &cur, fcc, sizeof (fcc))) < 0)
goto cleanup;
}

if (flags & (SENDPOSTPONED|SENDRESEND))
{
if ((tempfp = safe_fopen (msg->content->filename, "a+")) == NULL)
{
mutt_perror (msg->content->filename);
goto cleanup;
}
}

if (!msg->env)
msg->env = mutt_new_envelope ();
}

if (! (flags & (SENDKEY | SENDPOSTPONED | SENDRESEND)))
{
pbody = mutt_new_body ();
pbody->next = msg->content; /* don't kill command-line attachments */
msg->content = pbody;

msg->content->type = TYPETEXT;
msg->content->subtype = safe_strdup ("plain");
msg->content->unlink = 1;
msg->content->use_disp = 0;
msg->content->disposition = DISPINLINE;
if (option (OPTTEXTFLOWED))
mutt_set_parameter ("format", "flowed", &msg->content->parameter);

if (!tempfile)
{
mutt_mktemp (buffer);
tempfp = safe_fopen (buffer, "w+");
msg->content->filename = safe_strdup (buffer);
}
else
{
tempfp = safe_fopen (tempfile, "a+");
msg->content->filename = safe_strdup (tempfile);
}

if (!tempfp)
{
dprint(1,(debugfile, "newsend_message: can't create tempfile %s (errno=%d)\n", msg->content->filename, errno));
mutt_perror (msg->content->filename);
goto cleanup;
}
}

/* this is handled here so that the user can match ~f in send-hook */
if (cur && option (OPTREVNAME) && !(flags & (SENDPOSTPONED|SENDRESEND)))
{
/* we shouldn't have to worry about freeing `msg->env->from' before
* setting it here since this code will only execute when doing some
* sort of reply. the pointer will only be set when using the -H command
* line option */
msg->env->from = set_reverse_name (cur->env);
}

if (!msg->env->from && option (OPTUSEFROM) && !(flags & (SENDPOSTPONED|SENDRESEND)))
msg->env->from = mutt_default_from ();

if (flags & SENDBATCH)
{
mutt_copy_stream (stdin, tempfp);
if (option (OPTHDRS))
{
process_user_recips (msg->env);
process_user_header (msg->env);
}
}
else if (! (flags & (SENDPOSTPONED|SENDRESEND)))
{
if ((flags & (SENDREPLY | SENDFORWARD)) && ctx &&
envelope_defaults (msg->env, ctx, cur, flags) == -1)
goto cleanup;

if (option (OPTHDRS))
process_user_recips (msg->env);

if (! (flags & SENDMAILX) &&
! (option (OPTAUTOEDIT) && option (OPTEDITHDRS)) &&
! ((flags & SENDREPLY) && option (OPTFASTREPLY)))
{
if (edit_envelope (msg->env) == -1)
goto cleanup;
}

/* the from address must be set here regardless of whether or not
* $use_from is set so that the `~P' (from you) operator in send-hook
* patterns will work. if $use_from is unset, the from address is killed
* after send-hooks are evaulated */

if (!msg->env->from)
{
msg->env->from = mutt_default_from ();
killfrom = 1;
}

/* change settings based upon recipients */

mutt_message_hook (NULL, msg, M_SENDHOOK);

if (killfrom)
{
rfc822_free_address (&msg->env->from);
killfrom = 0;
}

if (option (OPTHDRS))
process_user_header (msg->env);


if (option (OPTSIGONTOP) && (! (flags & (SENDMAILX | SENDKEY)) && Editor && mutt_strcmp (Editor, "builtin") != 0))
append_signature (tempfp);

/* include replies/forwarded messages, unless we are given a template */
if (!tempfile && (ctx || !(flags & (SENDREPLY|SENDFORWARD)))
&& generate_body (tempfp, msg, flags, ctx, cur) == -1)
goto cleanup;

if (!option (OPTSIGONTOP) && (! (flags & (SENDMAILX | SENDKEY)) && Editor && mutt_strcmp (Editor, "builtin") != 0))
append_signature (tempfp);

/*
* this wants to be done _after_ generate_body, so message-hooks
* can take effect.
*/

#ifdef HAVE_PGP
if (! (flags & SENDMAILX))
{
if (option (OPTPGPAUTOSIGN))
msg->pgp |= PGPSIGN;
if (option (OPTPGPAUTOENCRYPT))
msg->pgp |= PGPENCRYPT;

msg->pgp |= set_pgp_flags (cur, ctx);
}

#endif /* HAVE_PGP */




}
/* wait until now to set the real name portion of our return address so
that $realname can be set in a send-hook */
if (msg->env->from && !msg->env->from->personal && !(flags & (SENDRESEND|SENDPOSTPONED)))
msg->env->from->personal = safe_strdup (Realname);



#ifdef HAVE_PGP
if (! (flags & SENDKEY))
#endif
safe_fclose (&tempfp);



if (flags & SENDMAILX)
{
if (mutt_builtin_editor (msg->content->filename, msg, cur) == -1)
goto cleanup;
}
else if (! (flags & SENDBATCH))
{
struct stat st;
time_t mtime = mutt_decrease_mtime (msg->content->filename, NULL);

mutt_update_encoding (msg->content);

/* If the this isn't a text message, look for a mailcap edit command */
if(! (flags & SENDKEY))
{
if (mutt_needs_mailcap (msg->content))
mutt_edit_attachment (msg->content);
else if (!Editor || mutt_strcmp ("builtin", Editor) == 0)
mutt_builtin_editor (msg->content->filename, msg, cur);
else if (option (OPTEDITHDRS))
mutt_edit_headers (Editor, msg->content->filename, msg, fcc, sizeof (fcc));
else
mutt_edit_file (Editor, msg->content->filename);
}

if (! (flags & (SENDPOSTPONED | SENDFORWARD | SENDKEY | SENDRESEND)))
{
if (stat (msg->content->filename, &st) == 0)
{
/* if the file was not modified, bail out now */
if (mtime == st.st_mtime &&
query_quadoption (OPT_ABORT, _("Abort unmodified message?")) == M_YES)
{
mutt_message _("Aborted unmodified message.");
goto cleanup;
}
}
else
mutt_perror (msg->content->filename);
}
}

/* specify a default fcc. if we are in batchmode, only save a copy of
* the message if the value of $copy is yes or ask-yes */

if (!fcc[0] && !(flags & (SENDPOSTPONED)) && (!(flags & SENDBATCH) || (quadoption (OPT_COPY) & 0x1)))
{
/* set the default FCC */
if (!msg->env->from)
{
msg->env->from = mutt_default_from ();
killfrom = 1; /* no need to check $use_from because if the user specified
a from address it would have already been set by now */
}
mutt_select_fcc (fcc, sizeof (fcc), msg);
if (killfrom)
{
rfc822_free_address (&msg->env->from);
killfrom = 0;
}
}


mutt_update_encoding (msg->content);

if (! (flags & (SENDMAILX | SENDBATCH)))
{
main_loop:

mutt_pretty_mailbox (fcc);
i = mutt_compose_menu (msg, fcc, sizeof (fcc), cur);
if (i == -1)
{
/* abort */
mutt_message _("Mail not sent.");
goto cleanup;
}
else if (i == 1)
{
/* postpone the message until later. */
if (msg->content->next)
msg->content = mutt_make_multipart (msg->content);

/*
* make sure the message is written to the right part of a maildir
* postponed folder.
*/
msg->read = 0; msg->old = 0;

encode_descriptions (msg->content, 1);
mutt_prepare_envelope (msg->env, 0);

if (!Postponed || mutt_write_fcc (NONULL (Postponed), msg, (cur && (flags & SENDREPLY)) ? cur->env->message_id : NULL, 1, fcc) < 0)
{
msg->content = mutt_remove_multipart (msg->content);
decode_descriptions (msg->content);
mutt_unprepare_envelope (msg->env);
goto main_loop;
}
mutt_update_num_postponed ();
mutt_message _("Message postponed.");
goto cleanup;
}
}

if (!msg->env->to && !msg->env->cc && !msg->env->bcc)
{
if (! (flags & SENDBATCH))
{
mutt_error _("No recipients are specified!");
goto main_loop;
}
else
{
puts _("No recipients were specified.");
goto cleanup;
}
}

if (!msg->env->subject && ! (flags & SENDBATCH) &&
(i = query_quadoption (OPT_SUBJECT, _("No subject, abort sending?"))) != M_NO)
{
/* if the abort is automatic, print an error message */
if (quadoption (OPT_SUBJECT) == M_YES)
mutt_error _("No subject specified.");
goto main_loop;
}

if (msg->content->next)
msg->content = mutt_make_multipart (msg->content);

/*
* Ok, we need to do it this way instead of handling all fcc stuff in
* one place in order to avoid going to main_loop with encoded "env"
* in case of error. Ugh.
*/

encode_descriptions (msg->content, 1);

#ifdef HAVE_PGP
if (msg->pgp)
{
/* save the decrypted attachments */
clear_content = msg->content;

if ((pgp_get_keys (msg, &pgpkeylist) == -1) ||
(pgp_protect (msg, pgpkeylist) == -1))
{
msg->content = mutt_remove_multipart (msg->content);

if (pgpkeylist)
FREE (&pgpkeylist);

decode_descriptions (msg->content);
goto main_loop;
}
encode_descriptions (msg->content, 0);
}

/*
* at this point, msg->content is one of the following three things:
* - multipart/signed. In this case, clear_content is a child.
* - multipart/encrypted. In this case, clear_content exists
* independently
* - application/pgp. In this case, clear_content exists independently.
* - something else. In this case, it's the same as clear_content.
*/

#endif /* HAVE_PGP */

if (!option (OPTNOCURSES) && !(flags & SENDMAILX))
mutt_message _("Sending message...");

mutt_prepare_envelope (msg->env, 1);

/* save a copy of the message, if necessary. */

mutt_expand_path (fcc, sizeof (fcc));


/* Don't save a copy when we are in batch-mode, and the FCC
* folder is on an IMAP server: This would involve possibly lots
* of user interaction, which is not available in batch mode.
*
* Note: A patch to fix the problems with the use of IMAP servers
* from non-curses mode is available from Brendan Cully. However,
* I'd like to think a bit more about this before including it.
*/

#ifdef USE_IMAP
if ((flags & SENDBATCH) && fcc[0] && mx_is_imap (fcc))
fcc[0] = '\0';
#endif

if (*fcc && mutt_strcmp ("/dev/null", fcc) != 0)
{
BODY *tmpbody = msg->content;
#ifdef HAVE_PGP
BODY *save_sig = NULL;
BODY *save_parts = NULL;
#endif /* HAVE_PGP */

#ifdef HAVE_PGP
if (msg->pgp && option (OPTFCCCLEAR))
msg->content = clear_content;
#endif

/* check to see if the user wants copies of all attachments */
if (!option (OPTFCCATTACH) && msg->content->type == TYPEMULTIPART)
{
#ifdef HAVE_PGP
if (mutt_strcmp (msg->content->subtype, "encrypted") == 0 ||
mutt_strcmp (msg->content->subtype, "signed") == 0)
{
if (clear_content->type == TYPEMULTIPART)
{
if (!(msg->pgp & PGPENCRYPT) && (msg->pgp & PGPSIGN))
{
/* save initial signature and attachments */
save_sig = msg->content->parts->next;
save_parts = clear_content->parts->next;
}

/* this means writing only the main part */
msg->content = clear_content->parts;

if (pgp_protect (msg, pgpkeylist) == -1)
{
/* we can't do much about it at this point, so
* fallback to saving the whole thing to fcc
*/
msg->content = tmpbody;
save_sig = NULL;
goto full_fcc;
}

save_content = msg->content;
}
}
else
#endif /* HAVE_PGP */
msg->content = msg->content->parts;
}

#ifdef HAVE_PGP
full_fcc:
#endif /* HAVE_PGP */
if (msg->content)
{
/* update received time so that when storing to a mbox-style folder
* the From_ line contains the current time instead of when the
* message was first postponed.
*/
msg->received = time (NULL);
mutt_write_fcc (fcc, msg, NULL, 0, NULL);
}

msg->content = tmpbody;

#ifdef HAVE_PGP
if (save_sig)
{
/* cleanup the second signature structures */
if (save_content->parts)
{
mutt_free_body (&save_content->parts->next);
save_content->parts = NULL;
}
mutt_free_body (&save_content);

/* restore old signature and attachments */
msg->content->parts->next = save_sig;
msg->content->parts->parts->next = save_parts;
}
else if (save_content)
{
/* destroy the new encrypted body. */
mutt_free_body (&save_content);
}

#endif /* HAVE_PGP */
}


if ((i = send_message (msg)) == -1)
{
if (!(flags & SENDBATCH))
{
#ifdef HAVE_PGP
if ((msg->pgp & PGPENCRYPT) ||
((msg->pgp & PGPSIGN) && msg->content->type == TYPEAPPLICATION))
{
mutt_free_body (&msg->content); /* destroy PGP data */
msg->content = clear_content; /* restore clear text. */
}
else if ((msg->pgp & PGPSIGN) && msg->content->type == TYPEMULTIPART)
{
mutt_free_body (&msg->content->parts->next); /* destroy sig */
msg->content = mutt_remove_multipart (msg->content); /* remove multipart */
}
#endif
msg->content = mutt_remove_multipart (msg->content);
decode_descriptions (msg->content);
mutt_unprepare_envelope (msg->env);
goto main_loop;
}
else
{
puts _("Could not send the message.");
goto cleanup;
}
}
else if (!option (OPTNOCURSES) && ! (flags & SENDMAILX))
mutt_message (i == 0 ? _("Mail sent.") : _("Sending in background."));

#ifdef HAVE_PGP
if (msg->pgp & PGPENCRYPT)
{
/* cleanup structures from the first encryption */
mutt_free_body (&clear_content);
FREE (&pgpkeylist);
}
#endif /* HAVE_PGP */

if (flags & SENDREPLY)
{
if (cur && ctx)
mutt_set_flag (ctx, cur, M_REPLIED, 1);
else if (!(flags & SENDPOSTPONED) && ctx && ctx->tagged)
{
for (i = 0; i < ctx->vcount; i++)
if (ctx->hdrs[ctx->v2r[i]]->tagged)
mutt_set_flag (ctx, ctx->hdrs[ctx->v2r[i]], M_REPLIED, 1);
}
}


rv = 0;

cleanup:



#ifdef HAVE_PGP
if (flags & SENDPOSTPONED)
{

if(signas)
{
safe_free((void **) &PgpSignAs);
PgpSignAs = signas;
}
}
#endif /* HAVE_PGP */

safe_fclose (&tempfp);
mutt_free_header (&msg);

return rv;

}

Domain Web Hosting

/*
* Copyright (C) 1996-9 Brandon Long
* Copyright (C) 1999-2000 Brendan Cully
*
* 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.
*/

/* message.c data structures */

#ifndef MESSAGE_H
#define MESSAGE_H 1

/* -- data structures -- */
/* IMAP-specific header data, stored as HEADER->data */
typedef struct imap_header_data
{
unsigned int uid; /* 32-bit Message UID */
LIST *keywords;
} IMAP_HEADER_DATA;

typedef struct
{
unsigned int read : 1;
unsigned int old : 1;
unsigned int deleted : 1;
unsigned int flagged : 1;
unsigned int replied : 1;
unsigned int changed : 1;

unsigned int sid;

IMAP_HEADER_DATA* data;

time_t received;
long content_length;
} IMAP_HEADER;

/* -- macros -- */
#define HEADER_DATA(ph) ((IMAP_HEADER_DATA*) ((ph)->data))

#endif /* MESSAGE_H */

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