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send.c
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/**
* @file
* Prepare and send an email
*
* @authors
* Copyright (C) 2016-2024 Richard Russon <[email protected]>
* Copyright (C) 2017-2023 Pietro Cerutti <[email protected]>
* Copyright (C) 2020 Jakub Jindra <[email protected]>
* Copyright (C) 2020 Thomas Sanchez <[email protected]>
* Copyright (C) 2021 Ashish Panigrahi <[email protected]>
* Copyright (C) 2021 Charalampos Kardaris <[email protected]>
* Copyright (C) 2021 Thomas Bracht Laumann Jespersen <[email protected]>
* Copyright (C) 2021 Viktor Cheburkin <[email protected]>
* Copyright (C) 2022 David Purton <[email protected]>
* Copyright (C) 2023 Dennis Schön <[email protected]>
* Copyright (C) 2023 Whitney Cumber
* Copyright (C) 2023 наб <[email protected]>
* Copyright (C) 2024 Alejandro Colomar <[email protected]>
* Copyright (C) 2023-2024 Tóth János <[email protected]>
*
* @copyright
* 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, see <http://www.gnu.org/licenses/>.
*/
/**
* @page send_send Prepare and send an email
*
* Prepare and send an email
*/
#include "config.h"
#include <errno.h>
#include <locale.h>
#include <stdbool.h>
#include <stdio.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include "mutt/lib.h"
#include "address/lib.h"
#include "config/lib.h"
#include "email/lib.h"
#include "core/lib.h"
#include "alias/lib.h"
#include "gui/lib.h"
#include "mutt.h"
#include "send.h"
#include "attach/lib.h"
#include "browser/lib.h"
#include "compose/lib.h"
#include "editor/lib.h"
#include "expando/lib.h"
#include "history/lib.h"
#include "imap/lib.h"
#include "index/lib.h"
#include "ncrypt/lib.h"
#include "pager/lib.h"
#include "parse/lib.h"
#include "pattern/lib.h"
#include "postpone/lib.h"
#include "question/lib.h"
#include "body.h"
#include "copy.h"
#include "expando.h"
#include "globals.h"
#include "handler.h"
#include "header.h"
#include "hook.h"
#include "maillist.h"
#include "multipart.h"
#include "mutt_body.h"
#include "mutt_header.h"
#include "mutt_logging.h"
#include "muttlib.h"
#include "mx.h"
#include "nntp/mdata.h"
#include "protos.h"
#include "rfc3676.h"
#include "sendlib.h"
#include "sendmail.h"
#include "smtp.h"
#ifdef USE_NOTMUCH
#include "notmuch/lib.h"
#endif
#ifdef USE_AUTOCRYPT
#include "autocrypt/lib.h"
#endif
/**
* append_signature - Append a signature to an email
* @param fp File to write to
* @param sub Config Subset
*/
static void append_signature(FILE *fp, struct ConfigSubset *sub)
{
const char *const c_signature = cs_subset_path(sub, "signature");
if (!c_signature)
return;
// If the user hasn't set $signature, don't warn them if it doesn't exist
struct Buffer *def_sig = buf_pool_get();
cs_str_initial_get(sub->cs, "signature", def_sig);
mutt_path_canon(def_sig, HomeDir, false);
bool notify_missing = !mutt_str_equal(c_signature, buf_string(def_sig));
buf_pool_release(&def_sig);
pid_t pid = 0;
FILE *fp_tmp = mutt_open_read(c_signature, &pid);
if (!fp_tmp)
{
if (notify_missing)
mutt_perror("%s", c_signature);
return;
}
const bool c_sig_dashes = cs_subset_bool(sub, "sig_dashes");
if (c_sig_dashes)
fputs("\n-- \n", fp);
mutt_file_copy_stream(fp_tmp, fp);
mutt_file_fclose(&fp_tmp);
if (pid != -1)
filter_wait(pid);
}
/**
* remove_user - Remove any address which matches the current user
* @param al List of addresses
* @param leave_only If set, don't remove the user's address if it it the only
* one in the list
*/
static void remove_user(struct AddressList *al, bool leave_only)
{
struct Address *a = NULL, *tmp = NULL;
TAILQ_FOREACH_SAFE(a, al, entries, tmp)
{
if (mutt_addr_is_user(a) && (!leave_only || TAILQ_NEXT(a, entries)))
{
TAILQ_REMOVE(al, a, entries);
mutt_addr_free(&a);
}
}
}
/**
* add_mailing_lists - Search Address lists for mailing lists
* @param out Address list where to append matching mailing lists
* @param t 'To' Address list
* @param c 'Cc' Address list
*/
static void add_mailing_lists(struct AddressList *out, const struct AddressList *t,
const struct AddressList *c)
{
const struct AddressList *const als[] = { t, c };
for (size_t i = 0; i < mutt_array_size(als); ++i)
{
const struct AddressList *al = als[i];
struct Address *a = NULL;
TAILQ_FOREACH(a, al, entries)
{
if (!a->group && mutt_is_mail_list(a))
{
mutt_addrlist_append(out, mutt_addr_copy(a));
}
}
}
}
/**
* mutt_edit_address - Edit an email address
* @param[in,out] al AddressList to edit
* @param[in] field Prompt for user
* @param[in] expand_aliases If true, expand Address aliases
* @retval 0 Success
* @retval -1 Failure
*/
int mutt_edit_address(struct AddressList *al, const char *field, bool expand_aliases)
{
int rc = 0;
struct Buffer *buf = buf_pool_get();
buf_alloc(buf, 8192);
char *err = NULL;
int idna_ok = 0;
do
{
mutt_addrlist_to_local(al);
buf_reset(buf);
mutt_addrlist_write(al, buf, false);
if (!buf_is_empty(buf))
buf_addstr(buf, ", ");
if (mw_get_field(field, buf, MUTT_COMP_NO_FLAGS, HC_ALIAS, &CompleteAliasOps, NULL) != 0)
{
rc = -1;
goto done;
}
mutt_addrlist_clear(al);
mutt_addrlist_parse2(al, buf_string(buf));
if (expand_aliases)
mutt_expand_aliases(al);
idna_ok = mutt_addrlist_to_intl(al, &err);
if (idna_ok != 0)
{
mutt_error(_("Bad IDN: '%s'"), err);
FREE(&err);
}
} while (idna_ok != 0);
done:
buf_pool_release(&buf);
return rc;
}
/**
* edit_envelope - Edit Envelope fields
* @param en Envelope to edit
* @param flags Flags, see #SendFlags
* @param sub Config Subset
* @retval 0 Success
* @retval -1 Failure
*/
static int edit_envelope(struct Envelope *en, SendFlags flags, struct ConfigSubset *sub)
{
int rc = -1;
struct Buffer *buf = buf_pool_get();
buf_alloc(buf, 8192);
if (OptNewsSend)
{
if (en->newsgroups)
buf_strcpy(buf, en->newsgroups);
else
buf_reset(buf);
if (mw_get_field("Newsgroups: ", buf, MUTT_COMP_NO_FLAGS, HC_OTHER, NULL, NULL) != 0)
{
goto done;
}
mutt_str_replace(&en->newsgroups, buf_string(buf));
if (en->followup_to)
buf_strcpy(buf, en->followup_to);
else
buf_reset(buf);
const bool c_ask_followup_to = cs_subset_bool(sub, "ask_followup_to");
if (c_ask_followup_to && (mw_get_field("Followup-To: ", buf, MUTT_COMP_NO_FLAGS,
HC_OTHER, NULL, NULL) != 0))
{
goto done;
}
mutt_str_replace(&en->followup_to, buf_string(buf));
if (en->x_comment_to)
buf_strcpy(buf, en->x_comment_to);
else
buf_reset(buf);
const bool c_x_comment_to = cs_subset_bool(sub, "x_comment_to");
const bool c_ask_x_comment_to = cs_subset_bool(sub, "ask_x_comment_to");
if (c_x_comment_to && c_ask_x_comment_to &&
(mw_get_field("X-Comment-To: ", buf, MUTT_COMP_NO_FLAGS, HC_OTHER, NULL, NULL) != 0))
{
goto done;
}
mutt_str_replace(&en->x_comment_to, buf_string(buf));
}
else
{
const bool c_fast_reply = cs_subset_bool(sub, "fast_reply");
if (TAILQ_EMPTY(&en->to) || !c_fast_reply || (flags & SEND_REVIEW_TO))
{
if ((mutt_edit_address(&en->to, _("To: "), true) == -1))
goto done;
}
const bool c_ask_cc = cs_subset_bool(sub, "ask_cc");
if (TAILQ_EMPTY(&en->cc) || !c_fast_reply)
{
if (c_ask_cc && (mutt_edit_address(&en->cc, _("Cc: "), true) == -1))
goto done;
}
const bool c_ask_bcc = cs_subset_bool(sub, "ask_bcc");
if (TAILQ_EMPTY(&en->bcc) || !c_fast_reply)
{
if (c_ask_bcc && (mutt_edit_address(&en->bcc, _("Bcc: "), true) == -1))
goto done;
}
if (TAILQ_EMPTY(&en->to) && TAILQ_EMPTY(&en->cc) && TAILQ_EMPTY(&en->bcc))
{
mutt_warning(_("No recipients specified"));
goto done;
}
const bool c_reply_with_xorig = cs_subset_bool(sub, "reply_with_xorig");
if (c_reply_with_xorig && (flags & (SEND_REPLY | SEND_LIST_REPLY | SEND_GROUP_REPLY)) &&
(mutt_edit_address(&en->from, "From: ", true) == -1))
{
goto done;
}
}
if (en->subject)
{
const bool c_fast_reply = cs_subset_bool(sub, "fast_reply");
if (c_fast_reply)
{
rc = 0;
goto done;
}
buf_strcpy(buf, en->subject);
}
else
{
const char *p = NULL;
buf_reset(buf);
struct ListNode *uh = NULL;
STAILQ_FOREACH(uh, &UserHeader, entries)
{
size_t plen = mutt_istr_startswith(uh->data, "subject:");
if (plen)
{
p = mutt_str_skip_email_wsp(uh->data + plen);
buf_strcpy(buf, p);
}
}
}
if ((mw_get_field(_("Subject: "), buf, MUTT_COMP_NO_FLAGS, HC_OTHER, NULL, NULL) != 0) ||
(buf_is_empty(buf) &&
(query_quadoption(_("No subject, abort?"), sub, "abort_nosubject") != MUTT_NO)))
{
mutt_message(_("No subject, aborting"));
goto done;
}
mutt_env_set_subject(en, buf_string(buf));
rc = 0;
done:
buf_pool_release(&buf);
return rc;
}
/**
* nntp_get_header - Get the trimmed header
* @param s Header line with leading whitespace
* @retval ptr Copy of string
*
* @note The caller should free the returned string.
*/
static char *nntp_get_header(const char *s)
{
SKIPWS(s);
return mutt_str_dup(s);
}
/**
* process_user_recips - Process the user headers
* @param env Envelope to populate
*/
static void process_user_recips(struct Envelope *env)
{
struct ListNode *uh = NULL;
STAILQ_FOREACH(uh, &UserHeader, entries)
{
size_t plen;
if ((plen = mutt_istr_startswith(uh->data, "to:")))
mutt_addrlist_parse(&env->to, uh->data + plen);
else if ((plen = mutt_istr_startswith(uh->data, "cc:")))
mutt_addrlist_parse(&env->cc, uh->data + plen);
else if ((plen = mutt_istr_startswith(uh->data, "bcc:")))
mutt_addrlist_parse(&env->bcc, uh->data + plen);
else if ((plen = mutt_istr_startswith(uh->data, "newsgroups:")))
env->newsgroups = nntp_get_header(uh->data + plen);
else if ((plen = mutt_istr_startswith(uh->data, "followup-to:")))
env->followup_to = nntp_get_header(uh->data + plen);
else if ((plen = mutt_istr_startswith(uh->data, "x-comment-to:")))
env->x_comment_to = nntp_get_header(uh->data + plen);
}
}
/**
* process_user_header - Process the user headers
* @param env Envelope to populate
*/
static void process_user_header(struct Envelope *env)
{
struct ListNode *uh = NULL;
STAILQ_FOREACH(uh, &UserHeader, entries)
{
size_t plen;
if ((plen = mutt_istr_startswith(uh->data, "from:")))
{
/* User has specified a default From: address. Remove default address */
mutt_addrlist_clear(&env->from);
mutt_addrlist_parse(&env->from, uh->data + plen);
}
else if ((plen = mutt_istr_startswith(uh->data, "reply-to:")))
{
mutt_addrlist_clear(&env->reply_to);
mutt_addrlist_parse(&env->reply_to, uh->data + plen);
}
else if ((plen = mutt_istr_startswith(uh->data, "message-id:")))
{
char *tmp = mutt_extract_message_id(uh->data + plen, NULL);
if (mutt_addr_valid_msgid(tmp))
{
FREE(&env->message_id);
env->message_id = tmp;
}
else
{
FREE(&tmp);
}
}
else if (!mutt_istr_startswith(uh->data, "to:") &&
!mutt_istr_startswith(uh->data, "cc:") &&
!mutt_istr_startswith(uh->data, "bcc:") &&
!mutt_istr_startswith(uh->data, "newsgroups:") &&
!mutt_istr_startswith(uh->data, "followup-to:") &&
!mutt_istr_startswith(uh->data, "x-comment-to:") &&
!mutt_istr_startswith(uh->data, "supersedes:") &&
!mutt_istr_startswith(uh->data, "subject:") &&
!mutt_istr_startswith(uh->data, "return-path:"))
{
mutt_list_insert_tail(&env->userhdrs, mutt_str_dup(uh->data));
}
}
}
/**
* mutt_forward_intro - Add the "start of forwarded message" text
* @param e Email
* @param sub Config Subset
* @param fp File to write to
*/
void mutt_forward_intro(struct Email *e, FILE *fp, struct ConfigSubset *sub)
{
const struct Expando *c_forward_attribution_intro = cs_subset_expando(sub, "forward_attribution_intro");
if (!c_forward_attribution_intro || !fp)
return;
const char *const c_attribution_locale = cs_subset_string(sub, "attribution_locale");
struct Buffer *buf = buf_pool_get();
setlocale(LC_TIME, NONULL(c_attribution_locale));
mutt_make_string(buf, -1, c_forward_attribution_intro, NULL, -1, e,
MUTT_FORMAT_NO_FLAGS, NULL);
setlocale(LC_TIME, "");
fputs(buf_string(buf), fp);
fputs("\n\n", fp);
buf_pool_release(&buf);
}
/**
* mutt_forward_trailer - Add a "end of forwarded message" text
* @param e Email
* @param sub Config Subset
* @param fp File to write to
*/
void mutt_forward_trailer(struct Email *e, FILE *fp, struct ConfigSubset *sub)
{
const struct Expando *c_forward_attribution_trailer = cs_subset_expando(sub, "forward_attribution_trailer");
if (!c_forward_attribution_trailer || !fp)
return;
const char *const c_attribution_locale = cs_subset_string(sub, "attribution_locale");
struct Buffer *buf = buf_pool_get();
setlocale(LC_TIME, NONULL(c_attribution_locale));
mutt_make_string(buf, -1, c_forward_attribution_trailer, NULL, -1, e,
MUTT_FORMAT_NO_FLAGS, NULL);
setlocale(LC_TIME, "");
fputc('\n', fp);
fputs(buf_string(buf), fp);
fputc('\n', fp);
buf_pool_release(&buf);
}
/**
* include_forward - Write out a forwarded message
* @param m Mailbox
* @param e Email
* @param fp_out File to write to
* @param sub Config Subset
* @retval 0 Success
* @retval -1 Failure
*/
static int include_forward(struct Mailbox *m, struct Email *e, FILE *fp_out,
struct ConfigSubset *sub)
{
CopyHeaderFlags chflags = CH_DECODE;
CopyMessageFlags cmflags = MUTT_CM_NO_FLAGS;
struct Message *msg = mx_msg_open(m, e);
if (!msg)
{
return -1;
}
mutt_parse_mime_message(e, msg->fp);
mutt_message_hook(m, e, MUTT_MESSAGE_HOOK);
const bool c_forward_decode = cs_subset_bool(sub, "forward_decode");
if ((WithCrypto != 0) && (e->security & SEC_ENCRYPT) && c_forward_decode)
{
/* make sure we have the user's passphrase before proceeding... */
if (!crypt_valid_passphrase(e->security))
{
mx_msg_close(m, &msg);
return -1;
}
}
mutt_forward_intro(e, fp_out, sub);
if (c_forward_decode)
{
cmflags |= MUTT_CM_DECODE | MUTT_CM_CHARCONV;
const bool c_weed = cs_subset_bool(sub, "weed");
if (c_weed)
{
chflags |= CH_WEED | CH_REORDER;
cmflags |= MUTT_CM_WEED;
}
}
const bool c_forward_quote = cs_subset_bool(sub, "forward_quote");
if (c_forward_quote)
cmflags |= MUTT_CM_PREFIX;
mutt_copy_message(fp_out, e, msg, cmflags, chflags, 0);
mx_msg_close(m, &msg);
mutt_forward_trailer(e, fp_out, sub);
return 0;
}
/**
* inline_forward_attachments - Add attachments to an email, inline
* @param[in] m Mailbox
* @param[in] e Current Email
* @param[out] plast Pointer to the last Attachment
* @param[out] forwardq Result of asking the user to forward the attachments, e.g. #MUTT_YES
* @param[in] sub Config Subset
* @retval 0 Success
* @retval -1 Error
*/
static int inline_forward_attachments(struct Mailbox *m, struct Email *e,
struct Body ***plast, enum QuadOption *forwardq,
struct ConfigSubset *sub)
{
struct Body **last = *plast;
struct Body *body = NULL;
struct AttachCtx *actx = NULL;
int rc = 0, i;
struct Message *msg = mx_msg_open(m, e);
if (!msg)
{
return -1;
}
mutt_parse_mime_message(e, msg->fp);
mutt_message_hook(m, e, MUTT_MESSAGE_HOOK);
actx = MUTT_MEM_CALLOC(1, struct AttachCtx);
actx->email = e;
actx->fp_root = msg->fp;
mutt_generate_recvattach_list(actx, actx->email, actx->email->body,
actx->fp_root, -1, 0, 0);
for (i = 0; i < actx->idxlen; i++)
{
body = actx->idx[i]->body;
if ((body->type != TYPE_MULTIPART) && mutt_prefer_as_attachment(body) &&
!((body->type == TYPE_APPLICATION) &&
(mutt_istr_equal(body->subtype, "pgp-signature") ||
mutt_istr_equal(body->subtype, "x-pkcs7-signature") ||
mutt_istr_equal(body->subtype, "pkcs7-signature"))))
{
/* Ask the quadoption only once */
if (*forwardq == MUTT_ABORT)
{
/* L10N: This is the prompt for $forward_attachments.
When inline forwarding ($mime_forward answered "no"), this prompts
whether to add non-decodable attachments from the original email.
Text/plain parts and the like will already be included in the
message contents, but other attachment, such as PDF files, will also
be added as attachments to the new mail, if this is answered yes. */
*forwardq = query_quadoption(_("Forward attachments?"), sub, "forward_attachments");
if (*forwardq != MUTT_YES)
{
if (*forwardq == -1)
rc = -1;
goto cleanup;
}
}
if (mutt_body_copy(actx->idx[i]->fp, last, body) == -1)
{
rc = -1;
goto cleanup;
}
last = &((*last)->next);
}
}
cleanup:
*plast = last;
mx_msg_close(m, &msg);
mutt_actx_free(&actx);
return rc;
}
/**
* format_attribution - Format an attribution prefix/suffix
* @param exp Expando to format
* @param e Email
* @param fp_out File to write to
* @param sub Config Subset
*/
static void format_attribution(const struct Expando *exp, struct Email *e,
FILE *fp_out, struct ConfigSubset *sub)
{
if (!exp || !fp_out)
return;
const char *const c_attribution_locale = cs_subset_string(sub, "attribution_locale");
struct Buffer *buf = buf_pool_get();
setlocale(LC_TIME, NONULL(c_attribution_locale));
mutt_make_string(buf, -1, exp, NULL, -1, e, MUTT_FORMAT_NO_FLAGS, NULL);
setlocale(LC_TIME, "");
fputs(buf_string(buf), fp_out);
fputc('\n', fp_out);
buf_pool_release(&buf);
}
/**
* mutt_make_attribution_intro - Add "on DATE, PERSON wrote" header
* @param e Email
* @param fp_out File to write to
* @param sub Config Subset
*/
void mutt_make_attribution_intro(struct Email *e, FILE *fp_out, struct ConfigSubset *sub)
{
format_attribution(cs_subset_expando(sub, "attribution_intro"), e, fp_out, sub);
}
/**
* mutt_make_attribution_trailer - Add suffix to replied email text
* @param e Email
* @param fp_out File to write to
* @param sub Config Subset
*/
void mutt_make_attribution_trailer(struct Email *e, FILE *fp_out, struct ConfigSubset *sub)
{
format_attribution(cs_subset_expando(sub, "attribution_trailer"), e, fp_out, sub);
}
/**
* mutt_make_greeting - Add greetings string
* @param e Email
* @param fp_out File to write to
* @param sub Config Subset
*
* @sa $greeting
*/
static void mutt_make_greeting(struct Email *e, FILE *fp_out, struct ConfigSubset *sub)
{
const struct Expando *c_greeting = cs_subset_expando(sub, "greeting");
if (!c_greeting || !fp_out)
return;
struct Buffer *buf = buf_pool_get();
expando_filter(c_greeting, GreetingRenderCallbacks, e, TOKEN_NO_FLAGS, buf->dsize, buf);
fputs(buf_string(buf), fp_out);
fputc('\n', fp_out);
buf_pool_release(&buf);
}
/**
* include_reply - Generate the reply text for an email
* @param m Mailbox
* @param e Email
* @param fp_out File to write to
* @param sub Config Subset
* @retval 0 Success
* @retval -1 Failure
*/
static int include_reply(struct Mailbox *m, struct Email *e, FILE *fp_out,
struct ConfigSubset *sub)
{
CopyMessageFlags cmflags = MUTT_CM_PREFIX | MUTT_CM_DECODE | MUTT_CM_CHARCONV | MUTT_CM_REPLYING;
CopyHeaderFlags chflags = CH_DECODE;
if ((WithCrypto != 0) && (e->security & SEC_ENCRYPT))
{
/* make sure we have the user's passphrase before proceeding... */
if (!crypt_valid_passphrase(e->security))
return -1;
}
struct Message *msg = mx_msg_open(m, e);
if (!msg)
{
return -1;
}
mutt_parse_mime_message(e, msg->fp);
mutt_message_hook(m, e, MUTT_MESSAGE_HOOK);
mutt_make_attribution_intro(e, fp_out, sub);
const bool c_header = cs_subset_bool(sub, "header");
if (!c_header)
cmflags |= MUTT_CM_NOHEADER;
const bool c_weed = cs_subset_bool(sub, "weed");
if (c_weed)
{
chflags |= CH_WEED | CH_REORDER;
cmflags |= MUTT_CM_WEED;
}
mutt_copy_message(fp_out, e, msg, cmflags, chflags, 0);
mx_msg_close(m, &msg);
mutt_make_attribution_trailer(e, fp_out, sub);
return 0;
}
/**
* choose_default_to - Pick the best 'to:' value
* @param from From Address
* @param env Envelope
* @param sub Config Subset
* @retval ptr Addresses to use
*/
static const struct AddressList *choose_default_to(const struct Address *from,
const struct Envelope *env,
struct ConfigSubset *sub)
{
const bool c_reply_self = cs_subset_bool(sub, "reply_self");
if (!c_reply_self && mutt_addr_is_user(from))
{
/* mail is from the user, assume replying to recipients */
return &env->to;
}
else
{
return &env->from;
}
}
/**
* default_to - Generate default email addresses
* @param[in,out] to 'To' address
* @param[in] env Envelope to populate
* @param[in] flags Flags, see #SendFlags
* @param[in] hmfupto If true, add 'followup-to' address to 'to' address
* @param[in] sub Config Subset
* @retval 0 Success
* @retval -1 Aborted
*/
static int default_to(struct AddressList *to, struct Envelope *env,
SendFlags flags, int hmfupto, struct ConfigSubset *sub)
{
const struct Address *from = TAILQ_FIRST(&env->from);
const struct Address *reply_to = TAILQ_FIRST(&env->reply_to);
if (flags && !TAILQ_EMPTY(&env->mail_followup_to) && (hmfupto == MUTT_YES))
{
mutt_addrlist_copy(to, &env->mail_followup_to, true);
return 0;
}
/* 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 & SEND_LIST_REPLY)
return 0;
const struct AddressList *default_to = choose_default_to(from, env, sub);
if (reply_to)
{
const bool from_is_reply_to = mutt_addr_cmp(from, reply_to);
const bool multiple_reply_to = reply_to &&
TAILQ_NEXT(TAILQ_FIRST(&env->reply_to), entries);
const bool c_ignore_list_reply_to = cs_subset_bool(sub, "ignore_list_reply_to");
const enum QuadOption c_reply_to = cs_subset_quad(sub, "reply_to");
if ((from_is_reply_to && !multiple_reply_to && !reply_to->personal) ||
(c_ignore_list_reply_to && mutt_is_mail_list(reply_to) &&
(mutt_addrlist_search(&env->to, reply_to) || mutt_addrlist_search(&env->cc, reply_to))))
{
/* 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 correspondent has a reply-to
* header which is identical to the electronic mail address given
* in his From header, and the reply-to has no display-name. */
mutt_addrlist_copy(to, &env->from, false);
}
else if (!(from_is_reply_to && !multiple_reply_to) && (c_reply_to != MUTT_YES))
{
char prompt[256] = { 0 };
/* 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. */
/* L10N: Asks whether the user respects the reply-to header.
If she says no, neomutt will reply to the from header's address instead. */
snprintf(prompt, sizeof(prompt), _("Reply to %s%s?"),
buf_string(reply_to->mailbox), multiple_reply_to ? ",..." : "");
switch (query_quadoption(prompt, sub, "reply_to"))
{
case MUTT_YES:
mutt_addrlist_copy(to, &env->reply_to, false);
break;
case MUTT_NO:
mutt_addrlist_copy(to, default_to, false);
break;
default:
return -1; /* abort */
}
}
else
{
mutt_addrlist_copy(to, &env->reply_to, false);
}
}
else
{
mutt_addrlist_copy(to, default_to, false);
}
return 0;
}
/**
* mutt_fetch_recips - Generate recpients for a reply email
* @param out Envelope to populate
* @param in Envelope of source email
* @param flags Flags, see #SendFlags
* @param sub Config Subset
* @retval 0 Success
* @retval -1 Failure
*/
int mutt_fetch_recips(struct Envelope *out, struct Envelope *in,
SendFlags flags, struct ConfigSubset *sub)
{
enum QuadOption hmfupto = MUTT_ABORT;
const struct Address *followup_to = TAILQ_FIRST(&in->mail_followup_to);
if ((flags & (SEND_LIST_REPLY | SEND_GROUP_REPLY | SEND_GROUP_CHAT_REPLY)) && followup_to)
{
char prompt[256] = { 0 };
snprintf(prompt, sizeof(prompt), _("Follow-up to %s%s?"),
buf_string(followup_to->mailbox),
TAILQ_NEXT(TAILQ_FIRST(&in->mail_followup_to), entries) ? ",..." : "");
hmfupto = query_quadoption(prompt, sub, "honor_followup_to");
if (hmfupto == MUTT_ABORT)
return -1;
}
if (flags & SEND_LIST_REPLY)
{
add_mailing_lists(&out->to, &in->to, &in->cc);
if (followup_to && (hmfupto == MUTT_YES) &&
(default_to(&out->cc, in, flags & SEND_LIST_REPLY, (hmfupto == MUTT_YES), sub) == MUTT_ABORT))
{
return -1; /* abort */
}
}
else if (flags & SEND_TO_SENDER)
{
mutt_addrlist_copy(&out->to, &in->from, false);
}
else
{
if (default_to(&out->to, in, flags & (SEND_GROUP_REPLY | SEND_GROUP_CHAT_REPLY),
(hmfupto == MUTT_YES), sub) == -1)
{
return -1; /* abort */
}
if ((flags & (SEND_GROUP_REPLY | SEND_GROUP_CHAT_REPLY)) &&
(!followup_to || (hmfupto != MUTT_YES)))
{
/* if(!mutt_addr_is_user(in->to)) */
if (flags & SEND_GROUP_REPLY)
mutt_addrlist_copy(&out->cc, &in->to, true);
else
mutt_addrlist_copy(&out->to, &in->to, true);
mutt_addrlist_copy(&out->cc, &in->cc, true);
}
}
return 0;
}
/**
* add_references - Add the email's references to a list
* @param head List of references
* @param env Envelope of message
*/
static void add_references(struct ListHead *head, struct Envelope *env)
{
struct ListHead *src = STAILQ_EMPTY(&env->references) ? &env->in_reply_to : &env->references;
mutt_list_copy_tail(head, src);
}
/**
* add_message_id - Add the email's message ID to a list
* @param head List of message IDs
* @param env Envelope of message
*/
static void add_message_id(struct ListHead *head, struct Envelope *env)
{
if (env->message_id)
{
mutt_list_insert_head(head, mutt_str_dup(env->message_id));
}
}
/**
* mutt_fix_reply_recipients - Remove duplicate recipients
* @param env Envelope to fix
* @param sub Config Subset
*/
void mutt_fix_reply_recipients(struct Envelope *env, struct ConfigSubset *sub)
{
const bool c_me_too = cs_subset_bool(sub, "me_too");
if (!c_me_too)
{
const bool c_reply_self = cs_subset_bool(sub, "reply_self");
/* 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 */
remove_user(&env->cc, TAILQ_EMPTY(&env->to));
remove_user(&env->to, TAILQ_EMPTY(&env->cc) || c_reply_self);
}
/* the CC field can get cluttered, especially with lists */
mutt_addrlist_dedupe(&env->to);
mutt_addrlist_dedupe(&env->cc);
mutt_addrlist_remove_xrefs(&env->to, &env->cc);
if (!TAILQ_EMPTY(&env->cc) && TAILQ_EMPTY(&env->to))
{
TAILQ_SWAP(&env->to, &env->cc, Address, entries);
}
}
/**
* mutt_make_forward_subject - Create a subject for a forwarded email
* @param env Envelope for result
* @param e Email
* @param sub Config Subset
*/
void mutt_make_forward_subject(struct Envelope *env, struct Email *e, struct ConfigSubset *sub)
{
if (!env)
return;
const struct Expando *c_forward_format = cs_subset_expando(sub, "forward_format");
struct Buffer *buf = buf_pool_get();
/* set the default subject for the message. */
mutt_make_string(buf, -1, c_forward_format, NULL, -1, e, MUTT_FORMAT_NO_FLAGS, NULL);
mutt_env_set_subject(env, buf_string(buf));
buf_pool_release(&buf);
}
/**
* mutt_make_misc_reply_headers - Set subject for a reply
* @param env Envelope for result
* @param env_cur Envelope of source email