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/*
* wee-hook-command-run.c - WeeChat command_run hook
*
* Copyright (C) 2003-2021 Sébastien Helleu <flashcode@flashtux.org>
*
* This file is part of WeeChat, the extensible chat client.
*
* WeeChat 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 3 of the License, or
* (at your option) any later version.
*
* WeeChat 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 WeeChat. If not, see <https://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdlib.h>
#include <string.h>
#include "../weechat.h"
#include "../wee-hook.h"
#include "../wee-infolist.h"
#include "../wee-log.h"
#include "../wee-string.h"
#include "../wee-utf8.h"
#include "../../plugins/plugin.h"
/*
* Hooks a command when it's run by WeeChat.
*
* Returns pointer to new hook, NULL if error.
*/
struct t_hook *
hook_command_run (struct t_weechat_plugin *plugin,
const char *command,
t_hook_callback_command_run *callback,
const void *callback_pointer,
void *callback_data)
{
struct t_hook *new_hook;
struct t_hook_command_run *new_hook_command_run;
int priority;
const char *ptr_command;
if (!callback)
return NULL;
new_hook = malloc (sizeof (*new_hook));
if (!new_hook)
return NULL;
new_hook_command_run = malloc (sizeof (*new_hook_command_run));
if (!new_hook_command_run)
{
free (new_hook);
return NULL;
}
hook_get_priority_and_name (command, &priority, &ptr_command);
hook_init_data (new_hook, plugin, HOOK_TYPE_COMMAND_RUN, priority,
callback_pointer, callback_data);
new_hook->hook_data = new_hook_command_run;
new_hook_command_run->callback = callback;
new_hook_command_run->command = strdup ((ptr_command) ? ptr_command :
((command) ? command : ""));
hook_add_to_list (new_hook);
return new_hook;
}
/*
* Executes a command_run hook.
*/
int
hook_command_run_exec (struct t_gui_buffer *buffer, const char *command)
{
struct t_hook *ptr_hook, *next_hook;
int rc, hook_matching, length;
char *command2;
const char *ptr_command;
if (!weechat_hooks[HOOK_TYPE_COMMAND_RUN])
return WEECHAT_RC_OK;
ptr_command = command;
command2 = NULL;
if (command[0] != '/')
{
length = strlen (command) + 1;
command2 = malloc (length);
if (command2)
{
snprintf (command2, length, "/%s", command + 1);
ptr_command = command2;
}
}
ptr_hook = weechat_hooks[HOOK_TYPE_COMMAND_RUN];
while (ptr_hook)
{
next_hook = ptr_hook->next_hook;
if (!ptr_hook->deleted
&& !ptr_hook->running
&& HOOK_COMMAND_RUN(ptr_hook, command))
{
hook_matching = string_match (ptr_command,
HOOK_COMMAND_RUN(ptr_hook, command),
0);
if (!hook_matching
&& !strchr (HOOK_COMMAND_RUN(ptr_hook, command), ' '))
{
length = strlen (HOOK_COMMAND_RUN(ptr_hook, command));
hook_matching = ((string_strncasecmp (ptr_command,
HOOK_COMMAND_RUN(ptr_hook, command),
utf8_strlen (HOOK_COMMAND_RUN(ptr_hook, command))) == 0)
&& ((ptr_command[length] == ' ')
|| (ptr_command[length] == '\0')));
}
if (hook_matching)
{
ptr_hook->running = 1;
rc = (HOOK_COMMAND_RUN(ptr_hook, callback)) (
ptr_hook->callback_pointer,
ptr_hook->callback_data,
buffer,
ptr_command);
ptr_hook->running = 0;
if (rc == WEECHAT_RC_OK_EAT)
{
if (command2)
free (command2);
return rc;
}
}
}
ptr_hook = next_hook;
}
if (command2)
free (command2);
return WEECHAT_RC_OK;
}
/*
* Frees data in a command_run hook.
*/
void
hook_command_run_free_data (struct t_hook *hook)
{
if (!hook || !hook->hook_data)
return;
if (HOOK_COMMAND_RUN(hook, command))
{
free (HOOK_COMMAND_RUN(hook, command));
HOOK_COMMAND_RUN(hook, command) = NULL;
}
free (hook->hook_data);
hook->hook_data = NULL;
}
/*
* Adds command_run hook data in the infolist item.
*
* Returns:
* 1: OK
* 0: error
*/
int
hook_command_run_add_to_infolist (struct t_infolist_item *item,
struct t_hook *hook)
{
if (!item || !hook || !hook->hook_data)
return 0;
if (!infolist_new_var_pointer (item, "callback", HOOK_COMMAND_RUN(hook, callback)))
return 0;
if (!infolist_new_var_string (item, "command", HOOK_COMMAND_RUN(hook, command)))
return 0;
return 1;
}
/*
* Prints command_run hook data in WeeChat log file (usually for crash dump).
*/
void
hook_command_run_print_log (struct t_hook *hook)
{
if (!hook || !hook->hook_data)
return;
log_printf (" command_run data:");
log_printf (" callback. . . . . . . : 0x%lx", HOOK_COMMAND_RUN(hook, callback));
log_printf (" command . . . . . . . : '%s'", HOOK_COMMAND_RUN(hook, command));
}
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