dlg_autocrypt.c

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#include "config.h"
#include <stdbool.h>
#include <stdio.h>
#include "private.h"
#include "mutt/lib.h"
#include "address/lib.h"
#include "config/lib.h"
#include "core/lib.h"
#include "gui/lib.h"
#include "lib.h"
#include "expando/lib.h"
#include "key/lib.h"
#include "menu/lib.h"
#include "functions.h"
#include "mutt_logging.h"
 
const struct ExpandoRenderData AutocryptRenderData[];
 
static const struct Mapping AutocryptHelp[] = {
  // clang-format off
  { N_("Exit"),       OP_EXIT },
  /* L10N: Autocrypt Account Menu Help line:
     create new account */
  { N_("Create"),     OP_AUTOCRYPT_CREATE_ACCT },
  /* L10N: Autocrypt Account Menu Help line:
     delete account */
  { N_("Delete"),     OP_AUTOCRYPT_DELETE_ACCT },
  /* L10N: Autocrypt Account Menu Help line:
     toggle an account active/inactive
     The words here are abbreviated to keep the help line compact.
     It currently has the content:
     q:Exit  c:Create  D:Delete  a:Tgl Active  p:Prf Encr  ?:Help */
  { N_("Tgl Active"), OP_AUTOCRYPT_TOGGLE_ACTIVE },
  /* L10N: Autocrypt Account Menu Help line:
     toggle "prefer-encrypt" on an account
     The words here are abbreviated to keep the help line compact.
     It currently has the content:
     q:Exit  c:Create  D:Delete  a:Tgl Active  p:Prf Encr  ?:Help */
  { N_("Prf Encr"),   OP_AUTOCRYPT_TOGGLE_PREFER },
  { N_("Help"),       OP_HELP },
  { NULL, 0 }
  // clang-format on
};
 
void autocrypt_a(const struct ExpandoNode *node, void *data,
                 MuttFormatFlags flags, int max_cols, struct Buffer *buf)
{
  const struct AccountEntry *entry = data;
 
  buf_copy(buf, entry->addr->mailbox);
}
 
void autocrypt_k(const struct ExpandoNode *node, void *data,
                 MuttFormatFlags flags, int max_cols, struct Buffer *buf)
{
  const struct AccountEntry *entry = data;
 
  const char *s = entry->account->keyid;
  buf_strcpy(buf, s);
}
 
long autocrypt_n_num(const struct ExpandoNode *node, void *data, MuttFormatFlags flags)
{
  const struct AccountEntry *entry = data;
 
  return entry->num;
}
 
void autocrypt_p(const struct ExpandoNode *node, void *data,
                 MuttFormatFlags flags, int max_cols, struct Buffer *buf)
{
  const struct AccountEntry *entry = data;
 
  if (entry->account->prefer_encrypt)
  {
    /* L10N: Autocrypt Account menu.
           flag that an account has prefer-encrypt set */
    buf_addstr(buf, _("prefer encrypt"));
  }
  else
  {
    /* L10N: Autocrypt Account menu.
           flag that an account has prefer-encrypt unset;
           thus encryption will need to be manually enabled.  */
    buf_addstr(buf, _("manual encrypt"));
  }
}
 
void autocrypt_s(const struct ExpandoNode *node, void *data,
                 MuttFormatFlags flags, int max_cols, struct Buffer *buf)
{
  const struct AccountEntry *entry = data;
 
  if (entry->account->enabled)
  {
    /* L10N: Autocrypt Account menu.
           flag that an account is enabled/active */
    buf_addstr(buf, _("active"));
  }
  else
  {
    /* L10N: Autocrypt Account menu.
           flag that an account is disabled/inactive */
    buf_addstr(buf, _("inactive"));
  }
}
 
static int autocrypt_make_entry(struct Menu *menu, int line, int max_cols, struct Buffer *buf)
{
  struct AccountEntry *entry = &((struct AccountEntry *) menu->mdata)[line];
 
  const bool c_arrow_cursor = cs_subset_bool(menu->sub, "arrow_cursor");
  if (c_arrow_cursor)
  {
    const char *const c_arrow_string = cs_subset_string(menu->sub, "arrow_string");
    max_cols -= (mutt_strwidth(c_arrow_string) + 1);
  }
 
  const struct Expando *c_autocrypt_acct_format = cs_subset_expando(NeoMutt->sub, "autocrypt_acct_format");
  return expando_render(c_autocrypt_acct_format, AutocryptRenderData, entry,
                        MUTT_FORMAT_ARROWCURSOR, max_cols, buf);
}
 
static void autocrypt_menu_free(struct Menu *menu, void **ptr)
{
  struct AccountEntry *entries = *ptr;
 
  for (size_t i = 0; i < menu->max; i++)
  {
    mutt_autocrypt_db_account_free(&entries[i].account);
    mutt_addr_free(&entries[i].addr);
  }
 
  FREE(ptr);
}
 
bool populate_menu(struct Menu *menu)
{
  // Clear out any existing data
  autocrypt_menu_free(menu, &menu->mdata);
  menu->max = 0;
 
  struct AutocryptAccount **accounts = NULL;
  int num_accounts = 0;
 
  if (mutt_autocrypt_db_account_get_all(&accounts, &num_accounts) < 0)
    return false;
 
  struct AccountEntry *entries = mutt_mem_calloc(num_accounts, sizeof(struct AccountEntry));
  menu->mdata = entries;
  menu->mdata_free = autocrypt_menu_free;
  menu->max = num_accounts;
 
  for (int i = 0; i < num_accounts; i++)
  {
    entries[i].num = i + 1;
    /* note: we are transferring the account pointer to the entries
     * array, and freeing the accounts array below.  the account
     * will be freed in autocrypt_menu_free().  */
    entries[i].account = accounts[i];
 
    entries[i].addr = mutt_addr_new();
    entries[i].addr->mailbox = buf_new(accounts[i]->email_addr);
    mutt_addr_to_local(entries[i].addr);
  }
  FREE(&accounts);
 
  menu_queue_redraw(menu, MENU_REDRAW_FULL);
  return true;
}
 
static int autocrypt_config_observer(struct NotifyCallback *nc)
{
  if (nc->event_type != NT_CONFIG)
    return 0;
  if (!nc->global_data || !nc->event_data)
    return -1;
 
  struct EventConfig *ev_c = nc->event_data;
 
  if (!mutt_str_equal(ev_c->name, "autocrypt_acct_format"))
    return 0;
 
  struct Menu *menu = nc->global_data;
  menu_queue_redraw(menu, MENU_REDRAW_FULL);
  mutt_debug(LL_DEBUG5, "config done, request WA_RECALC, MENU_REDRAW_FULL\n");
 
  return 0;
}
 
static int autocrypt_window_observer(struct NotifyCallback *nc)
{
  if (nc->event_type != NT_WINDOW)
    return 0;
  if (!nc->global_data || !nc->event_data)
    return -1;
  if (nc->event_subtype != NT_WINDOW_DELETE)
    return 0;
 
  struct MuttWindow *win_menu = nc->global_data;
  struct EventWindow *ev_w = nc->event_data;
  if (ev_w->win != win_menu)
    return 0;
 
  struct Menu *menu = win_menu->wdata;
 
  notify_observer_remove(NeoMutt->sub->notify, autocrypt_config_observer, menu);
  notify_observer_remove(win_menu->notify, autocrypt_window_observer, win_menu);
 
  mutt_debug(LL_DEBUG5, "window delete done\n");
  return 0;
}
 
void dlg_autocrypt(void)
{
  const bool c_autocrypt = cs_subset_bool(NeoMutt->sub, "autocrypt");
  if (!c_autocrypt)
    return;
 
  if (mutt_autocrypt_init(false))
    return;
 
  struct MuttWindow *dlg = simple_dialog_new(MENU_AUTOCRYPT, WT_DLG_AUTOCRYPT, AutocryptHelp);
 
  struct Menu *menu = dlg->wdata;
  menu->make_entry = autocrypt_make_entry;
 
  populate_menu(menu);
 
  struct AutocryptData ad = { false, menu };
  dlg->wdata = &ad;
 
  struct MuttWindow *sbar = window_find_child(dlg, WT_STATUS_BAR);
  // L10N: Autocrypt Account Management Menu title
  sbar_set_title(sbar, _("Autocrypt Accounts"));
 
  // NT_COLOR is handled by the SimpleDialog
  notify_observer_add(NeoMutt->sub->notify, NT_CONFIG, autocrypt_config_observer, menu);
  notify_observer_add(menu->win->notify, NT_WINDOW, autocrypt_window_observer, menu->win);
 
  struct MuttWindow *old_focus = window_set_focus(menu->win);
  // ---------------------------------------------------------------------------
  // Event Loop
  int op = OP_NULL;
  do
  {
    menu_tagging_dispatcher(menu->win, op);
    window_redraw(NULL);
 
    op = km_dokey(MENU_AUTOCRYPT, GETCH_NO_FLAGS);
    mutt_debug(LL_DEBUG1, "Got op %s (%d)\n", opcodes_get_name(op), op);
    if (op < 0)
      continue;
    if (op == OP_NULL)
    {
      km_error_key(MENU_AUTOCRYPT);
      continue;
    }
    mutt_clear_error();
 
    int rc = autocrypt_function_dispatcher(dlg, op);
 
    if (rc == FR_UNKNOWN)
      rc = menu_function_dispatcher(menu->win, op);
    if (rc == FR_UNKNOWN)
      rc = global_function_dispatcher(NULL, op);
  } while (!ad.done);
  // ---------------------------------------------------------------------------
 
  window_set_focus(old_focus);
  simple_dialog_free(&dlg);
}
 
const struct ExpandoRenderData AutocryptRenderData[] = {
  // clang-format off
  { ED_AUTOCRYPT, ED_AUT_ADDRESS,        autocrypt_a,     NULL },
  { ED_AUTOCRYPT, ED_AUT_KEYID,          autocrypt_k,     NULL },
  { ED_AUTOCRYPT, ED_AUT_NUMBER,         NULL,            autocrypt_n_num },
  { ED_AUTOCRYPT, ED_AUT_PREFER_ENCRYPT, autocrypt_p,     NULL },
  { ED_AUTOCRYPT, ED_AUT_ENABLED,        autocrypt_s,     NULL },
  { -1, -1, NULL, NULL },
  // clang-format on
};