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compose.c
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/**
* @file
* GUI editor for an email's headers
*
* @authors
* Copyright (C) 1996-2000,2002,2007,2010,2012 Michael R. Elkins <[email protected]>
* Copyright (C) 2004 g10 Code GmbH
* Copyright (C) 2019 Pietro Cerutti <[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 compose GUI editor for an email's headers
*
* GUI editor for an email's headers
*/
#include "config.h"
#include <errno.h>
#include <limits.h>
#include <stdbool.h>
#include <stdio.h>
#include <string.h>
#include <sys/stat.h>
#include <unistd.h>
#include "mutt/mutt.h"
#include "address/lib.h"
#include "config/lib.h"
#include "email/lib.h"
#include "core/lib.h"
#include "conn/conn.h"
#include "mutt.h"
#include "compose.h"
#include "alias.h"
#include "browser.h"
#include "color.h"
#include "commands.h"
#include "context.h"
#include "curs_lib.h"
#include "edit.h"
#include "format_flags.h"
#include "globals.h"
#include "hook.h"
#include "index.h"
#include "keymap.h"
#include "mutt_attach.h"
#include "mutt_curses.h"
#include "mutt_header.h"
#include "mutt_logging.h"
#include "mutt_menu.h"
#include "mutt_window.h"
#include "muttlib.h"
#include "mx.h"
#include "ncrypt/ncrypt.h"
#include "opcodes.h"
#include "options.h"
#include "protos.h"
#include "recvattach.h"
#include "sendlib.h"
#include "sort.h"
#ifdef ENABLE_NLS
#include <libintl.h>
#endif
#ifdef MIXMASTER
#include "remailer.h"
#endif
#ifdef USE_NNTP
#include "nntp/nntp.h"
#endif
#ifdef USE_POP
#include "pop/pop.h"
#endif
#ifdef USE_IMAP
#include "imap/imap.h"
#endif
#ifdef USE_AUTOCRYPT
#include "autocrypt/autocrypt.h"
#endif
/* These Config Variables are only used in compose.c */
char *C_ComposeFormat; ///< Config: printf-like format string for the Compose panel's status bar
char *C_Ispell; ///< Config: External command to perform spell-checking
unsigned char C_Postpone; ///< Config: Save messages to the #C_Postponed folder
static const char *There_are_no_attachments = N_("There are no attachments");
static void compose_status_line(char *buf, size_t buflen, size_t col, int cols,
struct Menu *menu, const char *p);
/**
* struct ComposeRedrawData - Keep track when the compose screen needs redrawing
*/
struct ComposeRedrawData
{
struct Email *email;
char *fcc;
#ifdef USE_AUTOCRYPT
enum AutocryptRec autocrypt_rec;
int autocrypt_rec_override;
#endif
struct MuttWindow *win;
};
#define CHECK_COUNT \
if (actx->idxlen == 0) \
{ \
mutt_error(_(There_are_no_attachments)); \
break; \
}
#define CUR_ATTACH actx->idx[actx->v2r[menu->current]]
/**
* enum HeaderField - Ordered list of headers for the compose screen
*
* The position of various fields on the compose screen.
*/
enum HeaderField
{
HDR_FROM = 0, ///< "From:" field
HDR_TO, ///< "To:" field
HDR_CC, ///< "Cc:" field
HDR_BCC, ///< "Bcc:" field
HDR_SUBJECT, ///< "Subject:" field
HDR_REPLYTO, ///< "Reply-To:" field
HDR_FCC, ///< "Fcc:" (save folder) field
#ifdef MIXMASTER
HDR_MIX, ///< "Mix:" field (Mixmaster chain)
#endif
HDR_CRYPT, ///< "Security:" field (encryption/signing info)
HDR_CRYPTINFO, ///< "Sign as:" field (encryption/signing info)
#ifdef USE_AUTOCRYPT
HDR_AUTOCRYPT,
#endif
#ifdef USE_NNTP
HDR_NEWSGROUPS, ///< "Newsgroups:" field
HDR_FOLLOWUPTO, ///< "Followup-To:" field
HDR_XCOMMENTTO, ///< "X-Comment-To:" field
#endif
HDR_ATTACH_TITLE, ///< The "-- Attachments" line
HDR_ATTACH ///< Where to start printing the attachments
};
int HeaderPadding[HDR_ATTACH_TITLE] = { 0 };
int MaxHeaderWidth = 0;
#define HDR_XOFFSET MaxHeaderWidth
#define W (rd->win->cols - MaxHeaderWidth)
static const char *const Prompts[] = {
/* L10N: Compose menu field. May not want to translate. */
N_("From: "),
/* L10N: Compose menu field. May not want to translate. */
N_("To: "),
/* L10N: Compose menu field. May not want to translate. */
N_("Cc: "),
/* L10N: Compose menu field. May not want to translate. */
N_("Bcc: "),
/* L10N: Compose menu field. May not want to translate. */
N_("Subject: "),
/* L10N: Compose menu field. May not want to translate. */
N_("Reply-To: "),
/* L10N: Compose menu field. May not want to translate. */
N_("Fcc: "),
#ifdef MIXMASTER
/* L10N: "Mix" refers to the MixMaster chain for anonymous email */
N_("Mix: "),
#endif
/* L10N: Compose menu field. Holds "Encrypt", "Sign" related information */
N_("Security: "),
/* L10N:
This string is used by the compose menu.
Since it is hidden by default, it does not increase the
indentation of other compose menu fields. However, if possible,
it should not be longer than the other compose menu fields.
Since it shares the row with "Encrypt with:", it should not be longer
than 15-20 character cells. */
N_("Sign as: "),
#ifdef USE_AUTOCRYPT
// L10N: The compose menu autocrypt line
N_("Autocrypt: "),
#endif
#ifdef USE_NNTP
/* L10N: Compose menu field. May not want to translate. */
N_("Newsgroups: "),
/* L10N: Compose menu field. May not want to translate. */
N_("Followup-To: "),
/* L10N: Compose menu field. May not want to translate. */
N_("X-Comment-To: "),
#endif
};
static const struct Mapping ComposeHelp[] = {
{ N_("Send"), OP_COMPOSE_SEND_MESSAGE },
{ N_("Abort"), OP_EXIT },
/* L10N: compose menu help line entry */
{ N_("To"), OP_COMPOSE_EDIT_TO },
/* L10N: compose menu help line entry */
{ N_("CC"), OP_COMPOSE_EDIT_CC },
/* L10N: compose menu help line entry */
{ N_("Subj"), OP_COMPOSE_EDIT_SUBJECT },
{ N_("Attach file"), OP_COMPOSE_ATTACH_FILE },
{ N_("Descrip"), OP_COMPOSE_EDIT_DESCRIPTION },
{ N_("Help"), OP_HELP },
{ NULL, 0 },
};
#ifdef USE_NNTP
static struct Mapping ComposeNewsHelp[] = {
{ N_("Send"), OP_COMPOSE_SEND_MESSAGE },
{ N_("Abort"), OP_EXIT },
{ N_("Newsgroups"), OP_COMPOSE_EDIT_NEWSGROUPS },
{ N_("Subj"), OP_COMPOSE_EDIT_SUBJECT },
{ N_("Attach file"), OP_COMPOSE_ATTACH_FILE },
{ N_("Descrip"), OP_COMPOSE_EDIT_DESCRIPTION },
{ N_("Help"), OP_HELP },
{ NULL, 0 },
};
#endif
#ifdef USE_AUTOCRYPT
static const char *AutocryptRecUiFlags[] = {
/* L10N: Autocrypt recommendation flag: off.
* This is displayed when Autocrypt is turned off. */
N_("Off"),
/* L10N: Autocrypt recommendation flag: no.
* This is displayed when Autocrypt cannot encrypt to the recipients. */
N_("No"),
/* L10N: Autocrypt recommendation flag: discouraged.
* This is displayed when Autocrypt believes encryption should not be used.
* This might occur if one of the recipient Autocrypt Keys has not been
* used recently, or if the only key available is a Gossip Header key. */
N_("Discouraged"),
/* L10N: Autocrypt recommendation flag: available.
* This is displayed when Autocrypt believes encryption is possible, but
* leaves enabling it up to the sender. Probably because "prefer encrypt"
* is not set in both the sender and recipient keys. */
N_("Available"),
/* L10N: Autocrypt recommendation flag: yes.
* This is displayed when Autocrypt would normally enable encryption
* automatically. */
N_("Yes"),
};
#endif
/**
* calc_header_width_padding - Calculate the width needed for the compose labels
* @param idx Store the result at this index of HeaderPadding
* @param header Header string
* @param calc_max If true, calculate the maximum width
*/
static void calc_header_width_padding(int idx, const char *header, bool calc_max)
{
int width;
HeaderPadding[idx] = mutt_str_strlen(header);
width = mutt_strwidth(header);
if (calc_max && (MaxHeaderWidth < width))
MaxHeaderWidth = width;
HeaderPadding[idx] -= width;
}
/**
* init_header_padding - Calculate how much padding the compose table will need
*
* The padding needed for each header is strlen() + max_width - strwidth().
*
* calc_header_width_padding sets each entry in HeaderPadding to strlen -
* width. Then, afterwards, we go through and add max_width to each entry.
*/
static void init_header_padding(void)
{
static bool done = false;
if (done)
return;
done = true;
for (int i = 0; i < HDR_ATTACH_TITLE; i++)
{
if (i == HDR_CRYPTINFO)
continue;
calc_header_width_padding(i, _(Prompts[i]), true);
}
/* Don't include "Sign as: " in the MaxHeaderWidth calculation. It
* doesn't show up by default, and so can make the indentation of
* the other fields look funny. */
calc_header_width_padding(HDR_CRYPTINFO, _(Prompts[HDR_CRYPTINFO]), false);
for (int i = 0; i < HDR_ATTACH_TITLE; i++)
{
HeaderPadding[i] += MaxHeaderWidth;
if (HeaderPadding[i] < 0)
HeaderPadding[i] = 0;
}
}
/**
* snd_make_entry - Format a menu item for the attachment list - Implements Menu::menu_make_entry()
*/
static void snd_make_entry(char *buf, size_t buflen, struct Menu *menu, int line)
{
struct AttachCtx *actx = menu->data;
mutt_expando_format(buf, buflen, 0, menu->indexwin->cols, NONULL(C_AttachFormat),
attach_format_str, (unsigned long) (actx->idx[actx->v2r[line]]),
MUTT_FORMAT_STAT_FILE | MUTT_FORMAT_ARROWCURSOR);
}
#ifdef USE_AUTOCRYPT
/**
* autocrypt_compose_menu - Autocrypt compose settings
* @param e Email
*/
static void autocrypt_compose_menu(struct Email *e)
{
/* L10N:
The compose menu autocrypt prompt.
(e)ncrypt enables encryption via autocrypt.
(c)lear sets cleartext.
(a)utomatic defers to the recommendation.
*/
const char *prompt = _("Autocrypt: (e)ncrypt, (c)lear, (a)utomatic?");
/* L10N:
The letter corresponding to the compose menu autocrypt prompt
(e)ncrypt, (c)lear, (a)utomatic
*/
const char *letters = _("eca");
int choice = mutt_multi_choice(prompt, letters);
switch (choice)
{
case 1:
e->security |= (SEC_AUTOCRYPT | SEC_AUTOCRYPT_OVERRIDE);
e->security &= ~(SEC_ENCRYPT | SEC_SIGN | SEC_OPPENCRYPT | SEC_INLINE);
break;
case 2:
e->security &= ~SEC_AUTOCRYPT;
e->security |= SEC_AUTOCRYPT_OVERRIDE;
break;
case 3:
e->security &= ~SEC_AUTOCRYPT_OVERRIDE;
if (C_CryptOpportunisticEncrypt)
e->security |= SEC_OPPENCRYPT;
break;
}
}
#endif
/**
* redraw_crypt_lines - Update the encryption info in the compose window
* @param rd Email and other compose data
*/
static void redraw_crypt_lines(struct ComposeRedrawData *rd)
{
struct Email *e = rd->email;
mutt_curses_set_color(MT_COLOR_COMPOSE_HEADER);
mutt_window_mvprintw(rd->win, HDR_CRYPT, 0, "%*s", HeaderPadding[HDR_CRYPT],
_(Prompts[HDR_CRYPT]));
mutt_curses_set_color(MT_COLOR_NORMAL);
if ((WithCrypto & (APPLICATION_PGP | APPLICATION_SMIME)) == 0)
{
mutt_window_addstr(_("Not supported"));
return;
}
if ((e->security & (SEC_ENCRYPT | SEC_SIGN)) == (SEC_ENCRYPT | SEC_SIGN))
{
mutt_curses_set_color(MT_COLOR_COMPOSE_SECURITY_BOTH);
mutt_window_addstr(_("Sign, Encrypt"));
}
else if (e->security & SEC_ENCRYPT)
{
mutt_curses_set_color(MT_COLOR_COMPOSE_SECURITY_ENCRYPT);
mutt_window_addstr(_("Encrypt"));
}
else if (e->security & SEC_SIGN)
{
mutt_curses_set_color(MT_COLOR_COMPOSE_SECURITY_SIGN);
mutt_window_addstr(_("Sign"));
}
else
{
/* L10N: This refers to the encryption of the email, e.g. "Security: None" */
mutt_curses_set_color(MT_COLOR_COMPOSE_SECURITY_NONE);
mutt_window_addstr(_("None"));
}
mutt_curses_set_color(MT_COLOR_NORMAL);
if ((e->security & (SEC_ENCRYPT | SEC_SIGN)))
{
if (((WithCrypto & APPLICATION_PGP) != 0) && (e->security & APPLICATION_PGP))
{
if ((e->security & SEC_INLINE))
mutt_window_addstr(_(" (inline PGP)"));
else
mutt_window_addstr(_(" (PGP/MIME)"));
}
else if (((WithCrypto & APPLICATION_SMIME) != 0) && (e->security & APPLICATION_SMIME))
mutt_window_addstr(_(" (S/MIME)"));
}
if (C_CryptOpportunisticEncrypt && (e->security & SEC_OPPENCRYPT))
mutt_window_addstr(_(" (OppEnc mode)"));
mutt_window_clrtoeol(rd->win);
mutt_window_move(rd->win, HDR_CRYPTINFO, 0);
mutt_window_clrtoeol(rd->win);
if (((WithCrypto & APPLICATION_PGP) != 0) &&
(e->security & APPLICATION_PGP) && (e->security & SEC_SIGN))
{
mutt_curses_set_color(MT_COLOR_COMPOSE_HEADER);
mutt_window_printf("%*s", HeaderPadding[HDR_CRYPTINFO], _(Prompts[HDR_CRYPTINFO]));
mutt_curses_set_color(MT_COLOR_NORMAL);
mutt_window_printf("%s", C_PgpSignAs ? C_PgpSignAs : _("<default>"));
}
if (((WithCrypto & APPLICATION_SMIME) != 0) &&
(e->security & APPLICATION_SMIME) && (e->security & SEC_SIGN))
{
mutt_curses_set_color(MT_COLOR_COMPOSE_HEADER);
mutt_window_printf("%*s", HeaderPadding[HDR_CRYPTINFO], _(Prompts[HDR_CRYPTINFO]));
mutt_curses_set_color(MT_COLOR_NORMAL);
mutt_window_printf("%s", C_SmimeSignAs ? C_SmimeSignAs : _("<default>"));
}
if (((WithCrypto & APPLICATION_SMIME) != 0) && (e->security & APPLICATION_SMIME) &&
(e->security & SEC_ENCRYPT) && C_SmimeEncryptWith)
{
mutt_curses_set_color(MT_COLOR_COMPOSE_HEADER);
mutt_window_mvprintw(rd->win, HDR_CRYPTINFO, 40, "%s", _("Encrypt with: "));
mutt_curses_set_color(MT_COLOR_NORMAL);
mutt_window_printf("%s", NONULL(C_SmimeEncryptWith));
}
#ifdef USE_AUTOCRYPT
mutt_window_move(rd->win, HDR_AUTOCRYPT, 0);
mutt_window_clrtoeol(rd->win);
if (C_Autocrypt)
{
mutt_curses_set_color(MT_COLOR_COMPOSE_HEADER);
mutt_window_printf("%*s", HeaderPadding[HDR_AUTOCRYPT], _(Prompts[HDR_AUTOCRYPT]));
mutt_curses_set_color(MT_COLOR_NORMAL);
if (e->security & SEC_AUTOCRYPT)
{
mutt_curses_set_color(MT_COLOR_COMPOSE_SECURITY_ENCRYPT);
mutt_window_addstr(_("Encrypt"));
}
else
{
mutt_curses_set_color(MT_COLOR_COMPOSE_SECURITY_NONE);
mutt_window_addstr(_("Off"));
}
mutt_curses_set_color(MT_COLOR_COMPOSE_HEADER);
mutt_window_mvprintw(rd->win, HDR_AUTOCRYPT, 40, "%s",
/* L10N:
The autocrypt compose menu Recommendation field.
Displays the output of the recommendation engine
(Off, No, Discouraged, Available, Yes)
*/
_("Recommendation: "));
mutt_curses_set_color(MT_COLOR_NORMAL);
mutt_window_printf("%s", _(AutocryptRecUiFlags[rd->autocrypt_rec]));
}
#endif
}
/**
* update_crypt_info - Update the crypto info
* @param rd Email and other compose data
*/
static void update_crypt_info(struct ComposeRedrawData *rd)
{
struct Email *e = rd->email;
if (C_CryptOpportunisticEncrypt)
crypt_opportunistic_encrypt(e);
#ifdef USE_AUTOCRYPT
if (C_Autocrypt)
{
rd->autocrypt_rec = mutt_autocrypt_ui_recommendation(e, NULL);
/* Anything that enables SEC_ENCRYPT or SEC_SIGN, or turns on SMIME
* overrides autocrypt, be it oppenc or the user having turned on
* those flags manually. */
if (e->security & (SEC_ENCRYPT | SEC_SIGN | APPLICATION_SMIME))
e->security &= ~(SEC_AUTOCRYPT | SEC_AUTOCRYPT_OVERRIDE);
else
{
if (!(e->security & SEC_AUTOCRYPT_OVERRIDE))
{
if (rd->autocrypt_rec == AUTOCRYPT_REC_YES)
{
e->security |= SEC_AUTOCRYPT;
e->security &= ~SEC_INLINE;
}
else
e->security &= ~SEC_AUTOCRYPT;
}
}
}
#endif
redraw_crypt_lines(rd);
}
#ifdef MIXMASTER
/**
* redraw_mix_line - Redraw the Mixmaster chain
* @param chain List of chain links
* @param rd Email and other compose data
*/
static void redraw_mix_line(struct ListHead *chain, struct ComposeRedrawData *rd)
{
char *t = NULL;
mutt_curses_set_color(MT_COLOR_COMPOSE_HEADER);
mutt_window_mvprintw(rd->win, HDR_MIX, 0, "%*s", HeaderPadding[HDR_MIX],
_(Prompts[HDR_MIX]));
mutt_curses_set_color(MT_COLOR_NORMAL);
if (STAILQ_EMPTY(chain))
{
mutt_window_addstr(_("<no chain defined>"));
mutt_window_clrtoeol(rd->win);
return;
}
int c = 12;
struct ListNode *np = NULL;
STAILQ_FOREACH(np, chain, entries)
{
t = np->data;
if (t && (t[0] == '0') && (t[1] == '\0'))
t = "<random>";
if (c + mutt_str_strlen(t) + 2 >= rd->win->cols)
break;
mutt_window_addstr(NONULL(t));
if (STAILQ_NEXT(np, entries))
mutt_window_addstr(", ");
c += mutt_str_strlen(t) + 2;
}
}
#endif /* MIXMASTER */
/**
* check_attachments - Check if any attachments have changed or been deleted
* @param actx Attachment context
* @retval 0 Success
* @retval -1 Error
*/
static int check_attachments(struct AttachCtx *actx)
{
int rc = -1;
struct stat st;
struct Buffer *pretty = NULL, *msg = NULL;
for (int i = 0; i < actx->idxlen; i++)
{
if (actx->idx[i]->content->type == TYPE_MULTIPART)
continue;
if (stat(actx->idx[i]->content->filename, &st) != 0)
{
if (!pretty)
pretty = mutt_buffer_pool_get();
mutt_buffer_strcpy(pretty, actx->idx[i]->content->filename);
mutt_buffer_pretty_mailbox(pretty);
/* L10N:
This message is displayed in the compose menu when an attachment
doesn't stat. %d is the attachment number and %s is the
attachment filename.
The filename is located last to avoid a long path hiding the
error message.
*/
mutt_error(_("Attachment #%d no longer exists: %s"), i + 1, mutt_b2s(pretty));
goto cleanup;
}
if (actx->idx[i]->content->stamp < st.st_mtime)
{
if (!pretty)
pretty = mutt_buffer_pool_get();
mutt_buffer_strcpy(pretty, actx->idx[i]->content->filename);
mutt_buffer_pretty_mailbox(pretty);
if (!msg)
msg = mutt_buffer_pool_get();
/* L10N:
This message is displayed in the compose menu when an attachment
is modified behind the scenes. %d is the attachment number
and %s is the attachment filename.
The filename is located last to avoid a long path hiding the
prompt question.
*/
mutt_buffer_printf(msg, _("Attachment #%d modified. Update encoding for %s?"),
i + 1, mutt_b2s(pretty));
enum QuadOption ans = mutt_yesorno(mutt_b2s(msg), MUTT_YES);
if (ans == MUTT_YES)
mutt_update_encoding(actx->idx[i]->content);
else if (ans == MUTT_ABORT)
goto cleanup;
}
}
rc = 0;
cleanup:
mutt_buffer_pool_release(&pretty);
mutt_buffer_pool_release(&msg);
return rc;
}
/**
* draw_envelope_addr - Write addresses to the compose window
* @param line Line to write to (index into Prompts)
* @param al Address list to write
* @param rd Email and other compose data
*/
static void draw_envelope_addr(int line, struct AddressList *al, struct ComposeRedrawData *rd)
{
char buf[1024];
buf[0] = '\0';
mutt_addrlist_write(buf, sizeof(buf), al, true);
mutt_curses_set_color(MT_COLOR_COMPOSE_HEADER);
mutt_window_mvprintw(rd->win, line, 0, "%*s", HeaderPadding[line], _(Prompts[line]));
mutt_curses_set_color(MT_COLOR_NORMAL);
mutt_paddstr(W, buf);
}
/**
* draw_envelope - Write the email headers to the compose window
* @param rd Email and other compose data
*/
static void draw_envelope(struct ComposeRedrawData *rd)
{
struct Email *e = rd->email;
char *fcc = rd->fcc;
draw_envelope_addr(HDR_FROM, &e->env->from, rd);
#ifdef USE_NNTP
if (!OptNewsSend)
{
#endif
draw_envelope_addr(HDR_TO, &e->env->to, rd);
draw_envelope_addr(HDR_CC, &e->env->cc, rd);
draw_envelope_addr(HDR_BCC, &e->env->bcc, rd);
#ifdef USE_NNTP
}
else
{
mutt_window_mvprintw(rd->win, HDR_TO, 0, "%*s",
HeaderPadding[HDR_NEWSGROUPS], Prompts[HDR_NEWSGROUPS]);
mutt_paddstr(W, NONULL(e->env->newsgroups));
mutt_window_mvprintw(rd->win, HDR_CC, 0, "%*s",
HeaderPadding[HDR_FOLLOWUPTO], Prompts[HDR_FOLLOWUPTO]);
mutt_paddstr(W, NONULL(e->env->followup_to));
if (C_XCommentTo)
{
mutt_window_mvprintw(rd->win, HDR_BCC, 0, "%*s",
HeaderPadding[HDR_XCOMMENTTO], Prompts[HDR_XCOMMENTTO]);
mutt_paddstr(W, NONULL(e->env->x_comment_to));
}
}
#endif
mutt_curses_set_color(MT_COLOR_COMPOSE_HEADER);
mutt_window_mvprintw(rd->win, HDR_SUBJECT, 0, "%*s",
HeaderPadding[HDR_SUBJECT], _(Prompts[HDR_SUBJECT]));
mutt_curses_set_color(MT_COLOR_NORMAL);
mutt_paddstr(W, NONULL(e->env->subject));
draw_envelope_addr(HDR_REPLYTO, &e->env->reply_to, rd);
mutt_curses_set_color(MT_COLOR_COMPOSE_HEADER);
mutt_window_mvprintw(rd->win, HDR_FCC, 0, "%*s", HeaderPadding[HDR_FCC],
_(Prompts[HDR_FCC]));
mutt_curses_set_color(MT_COLOR_NORMAL);
mutt_paddstr(W, fcc);
if (WithCrypto)
redraw_crypt_lines(rd);
#ifdef MIXMASTER
redraw_mix_line(&e->chain, rd);
#endif
mutt_curses_set_color(MT_COLOR_STATUS);
mutt_window_mvaddstr(rd->win, HDR_ATTACH_TITLE, 0, _("-- Attachments"));
mutt_window_clrtoeol(rd->win);
mutt_curses_set_color(MT_COLOR_NORMAL);
}
/**
* edit_address_list - Let the user edit the address list
* @param[in] line Index into the Prompts lists
* @param[in,out] al AddressList to edit
* @param rd Email and other compose data
*/
static void edit_address_list(int line, struct AddressList *al, struct ComposeRedrawData *rd)
{
char buf[8192] = { 0 }; /* needs to be large for alias expansion */
char *err = NULL;
mutt_addrlist_to_local(al);
mutt_addrlist_write(buf, sizeof(buf), al, false);
if (mutt_get_field(_(Prompts[line]), buf, sizeof(buf), MUTT_ALIAS) == 0)
{
mutt_addrlist_clear(al);
mutt_addrlist_parse2(al, buf);
mutt_expand_aliases(al);
}
if (mutt_addrlist_to_intl(al, &err) != 0)
{
mutt_error(_("Bad IDN: '%s'"), err);
mutt_refresh();
FREE(&err);
}
/* redraw the expanded list so the user can see the result */
buf[0] = '\0';
mutt_addrlist_write(buf, sizeof(buf), al, true);
mutt_window_move(rd->win, line, HDR_XOFFSET);
mutt_paddstr(W, buf);
}
/**
* delete_attachment - Delete an attachment
* @param actx Attachment context
* @param x Index number of attachment
* @retval 0 Success
* @retval -1 Error
*/
static int delete_attachment(struct AttachCtx *actx, int x)
{
struct AttachPtr **idx = actx->idx;
int rindex = actx->v2r[x];
if ((rindex == 0) && (actx->idxlen == 1))
{
mutt_error(_("You may not delete the only attachment"));
idx[rindex]->content->tagged = false;
return -1;
}
for (int y = 0; y < actx->idxlen; y++)
{
if (idx[y]->content->next == idx[rindex]->content)
{
idx[y]->content->next = idx[rindex]->content->next;
break;
}
}
idx[rindex]->content->next = NULL;
/* mutt_make_message_attach() creates body->parts, shared by
* body->email->content. If we NULL out that, it creates a memory
* leak because mutt_free_body() frees body->parts, not
* body->email->content.
*
* Other ci_send_message() message constructors are careful to free
* any body->parts, removing depth:
* - mutt_prepare_template() used by postponed, resent, and draft files
* - mutt_copy_body() used by the recvattach menu and $forward_attachments.
*
* I believe it is safe to completely remove the "content->parts =
* NULL" statement. But for safety, am doing so only for the case
* it must be avoided: message attachments.
*/
if (!idx[rindex]->content->email)
idx[rindex]->content->parts = NULL;
mutt_body_free(&(idx[rindex]->content));
FREE(&idx[rindex]->tree);
FREE(&idx[rindex]);
for (; rindex < actx->idxlen - 1; rindex++)
idx[rindex] = idx[rindex + 1];
idx[actx->idxlen - 1] = NULL;
actx->idxlen--;
return 0;
}
/**
* mutt_gen_compose_attach_list - Generate the attachment list for the compose screen
* @param actx Attachment context
* @param m Attachment
* @param parent_type Attachment type, e.g #TYPE_MULTIPART
* @param level Nesting depth of attachment
*/
static void mutt_gen_compose_attach_list(struct AttachCtx *actx, struct Body *m,
int parent_type, int level)
{
for (; m; m = m->next)
{
if ((m->type == TYPE_MULTIPART) && m->parts &&
(!(WithCrypto & APPLICATION_PGP) || !mutt_is_multipart_encrypted(m)))
{
mutt_gen_compose_attach_list(actx, m->parts, m->type, level);
}
else
{
struct AttachPtr *ap = mutt_mem_calloc(1, sizeof(struct AttachPtr));
mutt_actx_add_attach(actx, ap);
ap->content = m;
m->aptr = ap;
ap->parent_type = parent_type;
ap->level = level;
/* We don't support multipart messages in the compose menu yet */
}
}
}
/**
* mutt_update_compose_menu - Redraw the compose window
* @param actx Attachment context
* @param menu Current menu
* @param init If true, initialise the attachment list
*/
static void mutt_update_compose_menu(struct AttachCtx *actx, struct Menu *menu, bool init)
{
if (init)
{
mutt_gen_compose_attach_list(actx, actx->email->content, -1, 0);
mutt_attach_init(actx);
menu->data = actx;
}
mutt_update_tree(actx);
menu->max = actx->vcount;
if (menu->max)
{
if (menu->current >= menu->max)
menu->current = menu->max - 1;
}
else
menu->current = 0;
menu->redraw |= REDRAW_INDEX | REDRAW_STATUS;
}
/**
* update_idx - Add a new attchment to the message
* @param menu Current menu
* @param actx Attachment context
* @param ap Attachment to add
*/
static void update_idx(struct Menu *menu, struct AttachCtx *actx, struct AttachPtr *ap)
{
ap->level = (actx->idxlen > 0) ? actx->idx[actx->idxlen - 1]->level : 0;
if (actx->idxlen)
actx->idx[actx->idxlen - 1]->content->next = ap->content;
ap->content->aptr = ap;
mutt_actx_add_attach(actx, ap);
mutt_update_compose_menu(actx, menu, false);
menu->current = actx->vcount - 1;
}
/**
* compose_custom_redraw - Redraw the compose menu - Implements Menu::menu_custom_redraw()
*/
static void compose_custom_redraw(struct Menu *menu)
{
struct ComposeRedrawData *rd = menu->redraw_data;
if (!rd)
return;
if (menu->redraw & REDRAW_FULL)
{
menu_redraw_full(menu);
draw_envelope(rd);
menu->offset = HDR_ATTACH;
menu->pagelen = menu->indexwin->rows - HDR_ATTACH;
}
menu_check_recenter(menu);
if (menu->redraw & REDRAW_STATUS)
{
char buf[1024];
compose_status_line(buf, sizeof(buf), 0, menu->statuswin->cols, menu,
NONULL(C_ComposeFormat));
mutt_window_move(menu->statuswin, 0, 0);
mutt_curses_set_color(MT_COLOR_STATUS);
mutt_paddstr(menu->statuswin->cols, buf);
mutt_curses_set_color(MT_COLOR_NORMAL);
menu->redraw &= ~REDRAW_STATUS;
}
#ifdef USE_SIDEBAR
if (menu->redraw & REDRAW_SIDEBAR)
menu_redraw_sidebar(menu);
#endif
if (menu->redraw & REDRAW_INDEX)
menu_redraw_index(menu);
else if (menu->redraw & (REDRAW_MOTION | REDRAW_MOTION_RESYNC))
menu_redraw_motion(menu);
else if (menu->redraw == REDRAW_CURRENT)
menu_redraw_current(menu);
}
/**
* compose_attach_swap - Swap two adjacent entries in the attachment list
* @param[in] msg Body of email
* @param[out] idx Array of Attachments
* @param[in] first Index of first attachment to swap
*/
static void compose_attach_swap(struct Body *msg, struct AttachPtr **idx, short first)
{
/* Reorder Body pointers.
* Must traverse msg from top since Body has no previous ptr. */
for (struct Body *part = msg; part; part = part->next)
{
if (part->next == idx[first]->content)
{
idx[first]->content->next = idx[first + 1]->content->next;
idx[first + 1]->content->next = idx[first]->content;
part->next = idx[first + 1]->content;
break;
}
}
/* Reorder index */
struct AttachPtr *saved = idx[first];
idx[first] = idx[first + 1];
idx[first + 1] = saved;
/* Swap ptr->num */
int i = idx[first]->num;
idx[first]->num = idx[first + 1]->num;
idx[first + 1]->num = i;
}
/**
* cum_attachs_size - Cumulative Attachments Size
* @param menu Menu listing attachments
* @retval num Bytes in attachments
*
* Returns the total number of bytes used by the attachments in the attachment
* list _after_ content-transfer-encodings have been applied.
*/
static unsigned long cum_attachs_size(struct Menu *menu)
{
size_t s = 0;
struct AttachCtx *actx = menu->data;
struct AttachPtr **idx = actx->idx;
struct Content *info = NULL;
struct Body *b = NULL;
for (unsigned short i = 0; i < actx->idxlen; i++)
{
b = idx[i]->content;
if (!b->content)
b->content = mutt_get_content_info(b->filename, b);
info = b->content;
if (info)
{
switch (b->encoding)
{
case ENC_QUOTED_PRINTABLE:
s += 3 * (info->lobin + info->hibin) + info->ascii + info->crlf;
break;
case ENC_BASE64:
s += (4 * (info->lobin + info->hibin + info->ascii + info->crlf)) / 3;
break;
default:
s += info->lobin + info->hibin + info->ascii + info->crlf;
break;