dlg_query.c

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#include "config.h"
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include "mutt/lib.h"
#include "address/lib.h"
#include "config/lib.h"
#include "email/lib.h"
#include "core/lib.h"
#include "gui/lib.h"
#include "mutt.h"
#include "lib.h"
#include "editor/lib.h"
#include "history/lib.h"
#include "key/lib.h"
#include "menu/lib.h"
#include "pattern/lib.h"
#include "send/lib.h"
#include "alias.h"
#include "format_flags.h"
#include "functions.h"
#include "globals.h"
#include "gui.h"
#include "mutt_logging.h"
#include "muttlib.h"
 
static const struct Mapping QueryHelp[] = {
  // clang-format off
  { N_("Exit"),       OP_EXIT },
  { N_("Mail"),       OP_MAIL },
  { N_("New Query"),  OP_QUERY },
  { N_("Make Alias"), OP_CREATE_ALIAS },
  { N_("Sort"),       OP_SORT },
  { N_("Rev-Sort"),   OP_SORT_REVERSE },
  { N_("Search"),     OP_SEARCH },
  { N_("Help"),       OP_HELP },
  { NULL, 0 },
  // clang-format on
};
 
bool alias_to_addrlist(struct AddressList *al, struct Alias *alias)
{
  if (!al || !TAILQ_EMPTY(al) || !alias)
    return false;
 
  mutt_addrlist_copy(al, &alias->addr, false);
  if (!TAILQ_EMPTY(al))
  {
    struct Address *first = TAILQ_FIRST(al);
    struct Address *second = TAILQ_NEXT(first, entries);
    if (!second && !first->personal)
    {
      first->personal = buf_new(alias->name);
    }
 
    mutt_addrlist_to_intl(al, NULL);
  }
 
  return true;
}
 
static const char *query_format_str(char *buf, size_t buflen, size_t col, int cols,
                                    char op, const char *src, const char *prec,
                                    const char *if_str, const char *else_str,
                                    intptr_t data, MuttFormatFlags flags)
{
  struct AliasView *av = (struct AliasView *) data;
  struct Alias *alias = av->alias;
  char fmt[128] = { 0 };
  bool optional = (flags & MUTT_FORMAT_OPTIONAL);
 
  switch (op)
  {
    case 'a':
    {
      struct Buffer *tmpbuf = buf_pool_get();
      char tmp[256] = { 0 };
      tmp[0] = '<';
      mutt_addrlist_write(&alias->addr, tmpbuf, true);
      mutt_str_copy(tmp + 1, buf_string(tmpbuf), sizeof(tmp) - 1);
      buf_pool_release(&tmpbuf);
      const size_t len = strlen(tmp);
      if (len < (sizeof(tmp) - 1))
      {
        tmp[len] = '>';
        tmp[len + 1] = '\0';
      }
      mutt_format_s(buf, buflen, prec, tmp);
      break;
    }
    case 'c':
      snprintf(fmt, sizeof(fmt), "%%%sd", prec);
      snprintf(buf, buflen, fmt, av->num + 1);
      break;
    case 'e':
      if (!optional)
        mutt_format_s(buf, buflen, prec, NONULL(alias->comment));
      else if (!alias->comment || (*alias->comment == '\0'))
        optional = false;
      break;
    case 'n':
      mutt_format_s(buf, buflen, prec, NONULL(alias->name));
      break;
    case 't':
      snprintf(fmt, sizeof(fmt), "%%%sc", prec);
      snprintf(buf, buflen, fmt, av->is_tagged ? '*' : ' ');
      break;
    default:
      snprintf(fmt, sizeof(fmt), "%%%sc", prec);
      snprintf(buf, buflen, fmt, op);
      break;
  }
 
  if (optional)
  {
    mutt_expando_format(buf, buflen, col, cols, if_str, query_format_str, data,
                        MUTT_FORMAT_NO_FLAGS);
  }
  else if (flags & MUTT_FORMAT_OPTIONAL)
  {
    mutt_expando_format(buf, buflen, col, cols, else_str, query_format_str,
                        data, MUTT_FORMAT_NO_FLAGS);
  }
 
  /* We return the format string, unchanged */
  return src;
}
 
static void query_make_entry(struct Menu *menu, char *buf, size_t buflen, int line)
{
  const struct AliasMenuData *mdata = menu->mdata;
  const struct AliasViewArray *ava = &mdata->ava;
  struct AliasView *av = ARRAY_GET(ava, line);
 
  const char *const c_query_format = cs_subset_string(mdata->sub, "query_format");
 
  mutt_expando_format(buf, buflen, 0, menu->win->state.cols, NONULL(c_query_format),
                      query_format_str, (intptr_t) av, MUTT_FORMAT_ARROWCURSOR);
}
 
static int query_tag(struct Menu *menu, int sel, int act)
{
  const struct AliasMenuData *mdata = menu->mdata;
  const struct AliasViewArray *ava = &mdata->ava;
  struct AliasView *av = ARRAY_GET(ava, sel);
 
  bool ot = av->is_tagged;
 
  av->is_tagged = ((act >= 0) ? act : !av->is_tagged);
  return av->is_tagged - ot;
}
 
int query_run(const char *s, bool verbose, struct AliasList *al, const struct ConfigSubset *sub)
{
  FILE *fp = NULL;
  char *buf = NULL;
  size_t buflen;
  char *msg = NULL;
  size_t msglen = 0;
  char *p = NULL;
  struct Buffer *cmd = buf_pool_get();
 
  const char *const c_query_command = cs_subset_string(sub, "query_command");
  buf_file_expand_fmt_quote(cmd, c_query_command, s);
 
  pid_t pid = filter_create(buf_string(cmd), NULL, &fp, NULL, EnvList);
  if (pid < 0)
  {
    mutt_debug(LL_DEBUG1, "unable to fork command: %s\n", buf_string(cmd));
    buf_pool_release(&cmd);
    return -1;
  }
  buf_pool_release(&cmd);
 
  if (verbose)
    mutt_message(_("Waiting for response..."));
 
  /* The query protocol first reads one NL-terminated line. If an error
   * occurs, this is assumed to be an error message. Otherwise it's ignored. */
  msg = mutt_file_read_line(msg, &msglen, fp, NULL, MUTT_RL_NO_FLAGS);
  while ((buf = mutt_file_read_line(buf, &buflen, fp, NULL, MUTT_RL_NO_FLAGS)))
  {
    p = strtok(buf, "\t\n");
    if (p)
    {
      struct Alias *alias = alias_new();
 
      mutt_addrlist_parse(&alias->addr, p);
      p = strtok(NULL, "\t\n");
      if (p)
      {
        alias->name = mutt_str_dup(p);
        p = strtok(NULL, "\t\n");
        alias->comment = mutt_str_dup(p);
      }
      TAILQ_INSERT_TAIL(al, alias, entries);
    }
  }
  FREE(&buf);
  mutt_file_fclose(&fp);
  if (filter_wait(pid))
  {
    mutt_debug(LL_DEBUG1, "Error: %s\n", msg);
    if (verbose)
      mutt_error("%s", msg);
  }
  else
  {
    if (verbose)
      mutt_message("%s", msg);
  }
  FREE(&msg);
 
  return 0;
}
 
static int query_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, alias_config_observer, menu);
  notify_observer_remove(win_menu->notify, query_window_observer, win_menu);
 
  mutt_debug(LL_DEBUG5, "window delete done\n");
  return 0;
}
 
static struct MuttWindow *query_dialog_new(struct AliasMenuData *mdata, const char *query)
{
  struct MuttWindow *dlg = simple_dialog_new(MENU_QUERY, WT_DLG_QUERY, QueryHelp);
 
  struct Menu *menu = dlg->wdata;
 
  menu->make_entry = query_make_entry;
  menu->tag = query_tag;
  menu->max = ARRAY_SIZE(&mdata->ava);
  mdata->title = mutt_str_dup(_("Query"));
  menu->mdata = mdata;
  menu->mdata_free = NULL; // Menu doesn't own the data
 
  struct MuttWindow *win_menu = menu->win;
 
  // Override the Simple Dialog's recalc()
  win_menu->recalc = alias_recalc;
 
  char title[256] = { 0 };
  snprintf(title, sizeof(title), "%s: %s", mdata->title, query);
  struct MuttWindow *sbar = window_find_child(dlg, WT_STATUS_BAR);
  sbar_set_title(sbar, title);
 
  // NT_COLOR is handled by the SimpleDialog
  notify_observer_add(NeoMutt->sub->notify, NT_CONFIG, alias_config_observer, menu);
  notify_observer_add(win_menu->notify, NT_WINDOW, query_window_observer, win_menu);
 
  return dlg;
}
 
static bool dlg_query(struct Buffer *buf, struct AliasMenuData *mdata)
{
  struct MuttWindow *dlg = query_dialog_new(mdata, buf_string(buf));
  struct Menu *menu = dlg->wdata;
  struct MuttWindow *win_sbar = window_find_child(dlg, WT_STATUS_BAR);
  struct MuttWindow *win_menu = window_find_child(dlg, WT_MENU);
  mdata->menu = menu;
  mdata->sbar = win_sbar;
  mdata->query = buf;
 
  alias_array_sort(&mdata->ava, mdata->sub);
 
  struct AliasView *avp = NULL;
  ARRAY_FOREACH(avp, &mdata->ava)
  {
    avp->num = ARRAY_FOREACH_IDX;
  }
 
  struct MuttWindow *old_focus = window_set_focus(menu->win);
  // ---------------------------------------------------------------------------
  // Event Loop
  int rc = 0;
  int op = OP_NULL;
  do
  {
    menu_tagging_dispatcher(menu->win, op);
    window_redraw(NULL);
 
    op = km_dokey(MENU_QUERY, 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_QUERY);
      continue;
    }
    mutt_clear_error();
 
    rc = alias_function_dispatcher(dlg, op);
    if (rc == FR_UNKNOWN)
      rc = menu_function_dispatcher(win_menu, op);
    if (rc == FR_UNKNOWN)
      rc = global_function_dispatcher(NULL, op);
  } while ((rc != FR_DONE) && (rc != FR_CONTINUE));
  // ---------------------------------------------------------------------------
 
  window_set_focus(old_focus);
  simple_dialog_free(&dlg);
  window_redraw(NULL);
  return (rc == FR_CONTINUE); // Was a selection made?
}
 
int query_complete(struct Buffer *buf, struct ConfigSubset *sub)
{
  struct AliasMenuData mdata = { ARRAY_HEAD_INITIALIZER, NULL, sub };
  mdata.search_state = search_state_new();
 
  struct AliasList al = TAILQ_HEAD_INITIALIZER(al);
  const char *const c_query_command = cs_subset_string(sub, "query_command");
  if (!c_query_command)
  {
    mutt_warning(_("Query command not defined"));
    goto done;
  }
 
  query_run(buf_string(buf), true, &al, sub);
  if (TAILQ_EMPTY(&al))
    goto done;
 
  mdata.al = &al;
 
  struct Alias *a_first = TAILQ_FIRST(&al);
  if (!TAILQ_NEXT(a_first, entries)) // only one response?
  {
    struct AddressList addr = TAILQ_HEAD_INITIALIZER(addr);
    if (alias_to_addrlist(&addr, a_first))
    {
      mutt_addrlist_to_local(&addr);
      buf_reset(buf);
      mutt_addrlist_write(&addr, buf, false);
      mutt_addrlist_clear(&addr);
      mutt_clear_error();
    }
    goto done;
  }
 
  struct Alias *np = NULL;
  TAILQ_FOREACH(np, mdata.al, entries)
  {
    alias_array_alias_add(&mdata.ava, np);
  }
 
  /* multiple results, choose from query menu */
  if (!dlg_query(buf, &mdata))
    goto done;
 
  buf_reset(buf);
  buf_alloc(buf, 8192);
  bool first = true;
  struct AliasView *avp = NULL;
  ARRAY_FOREACH(avp, &mdata.ava)
  {
    if (!avp->is_tagged)
      continue;
 
    if (!first)
    {
      buf_addstr(buf, ", ");
    }
 
    first = false;
    struct AddressList al_copy = TAILQ_HEAD_INITIALIZER(al_copy);
    if (alias_to_addrlist(&al_copy, avp->alias))
    {
      mutt_addrlist_to_local(&al_copy);
      mutt_addrlist_write(&al_copy, buf, false);
      mutt_addrlist_clear(&al_copy);
    }
  }
 
done:
  ARRAY_FREE(&mdata.ava);
  FREE(&mdata.title);
  FREE(&mdata.limit);
  search_state_free(&mdata.search_state);
  aliaslist_clear(&al);
  return 0;
}
 
void query_index(struct Mailbox *m, struct ConfigSubset *sub)
{
  const char *const c_query_command = cs_subset_string(sub, "query_command");
  if (!c_query_command)
  {
    mutt_warning(_("Query command not defined"));
    return;
  }
 
  struct AliasList al = TAILQ_HEAD_INITIALIZER(al);
  struct AliasMenuData mdata = { ARRAY_HEAD_INITIALIZER, NULL, sub };
  mdata.al = &al;
  mdata.search_state = search_state_new();
 
  struct Buffer *buf = buf_pool_get();
  if ((mw_get_field(_("Query: "), buf, MUTT_COMP_NO_FLAGS, HC_OTHER, NULL, NULL) != 0) ||
      buf_is_empty(buf))
  {
    goto done;
  }
 
  query_run(buf_string(buf), false, &al, sub);
  if (TAILQ_EMPTY(&al))
    goto done;
 
  struct Alias *np = NULL;
  TAILQ_FOREACH(np, mdata.al, entries)
  {
    alias_array_alias_add(&mdata.ava, np);
  }
 
  if (!dlg_query(buf, &mdata))
    goto done;
 
  // Prepare the "To:" field of a new email
  struct Email *e = email_new();
  e->env = mutt_env_new();
 
  struct AliasView *avp = NULL;
  ARRAY_FOREACH(avp, &mdata.ava)
  {
    if (!avp->is_tagged)
      continue;
 
    struct AddressList al_copy = TAILQ_HEAD_INITIALIZER(al_copy);
    if (alias_to_addrlist(&al_copy, avp->alias))
    {
      mutt_addrlist_copy(&e->env->to, &al_copy, false);
      mutt_addrlist_clear(&al_copy);
    }
  }
 
  mutt_send_message(SEND_REVIEW_TO, e, NULL, m, NULL, sub);
 
done:
  ARRAY_FREE(&mdata.ava);
  FREE(&mdata.title);
  FREE(&mdata.limit);
  search_state_free(&mdata.search_state);
  aliaslist_clear(&al);
  buf_pool_release(&buf);
}