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weechat/src/core/hook/wee-hook-line.c

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/*
* wee-hook-line.c - WeeChat line hook
*
* Copyright (C) 2003-2018 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-hashtable.h"
#include "../wee-hook.h"
#include "../wee-infolist.h"
#include "../wee-log.h"
#include "../wee-string.h"
#include "../../gui/gui-buffer.h"
#include "../../gui/gui-line.h"
#include "../../plugins/plugin.h"
/*
* Hooks a line added in a buffer.
*
* Returns pointer to new hook, NULL if error.
*/
struct t_hook *
hook_line (struct t_weechat_plugin *plugin, const char *buffer_type,
const char *buffer_name, const char *tags,
t_hook_callback_line *callback, const void *callback_pointer,
void *callback_data)
{
struct t_hook *new_hook;
struct t_hook_line *new_hook_line;
if (!callback)
return NULL;
new_hook = malloc (sizeof (*new_hook));
if (!new_hook)
return NULL;
new_hook_line = malloc (sizeof (*new_hook_line));
if (!new_hook_line)
{
free (new_hook);
return NULL;
}
hook_init_data (new_hook, plugin, HOOK_TYPE_LINE, HOOK_PRIORITY_DEFAULT,
callback_pointer, callback_data);
new_hook->hook_data = new_hook_line;
new_hook_line->callback = callback;
if (!buffer_type || !buffer_type[0])
new_hook_line->buffer_type = GUI_BUFFER_TYPE_FORMATTED;
else if (strcmp (buffer_type, "*") == 0)
new_hook_line->buffer_type = -1;
else
new_hook_line->buffer_type = gui_buffer_search_type (buffer_type);
new_hook_line->buffers = string_split (
(buffer_name && buffer_name[0]) ? buffer_name : "*",
",", 0, 0, &new_hook_line->num_buffers);
new_hook_line->tags_array = string_split_tags (tags,
&new_hook_line->tags_count);
hook_add_to_list (new_hook);
return new_hook;
}
/*
* Executes a line hook and updates the line data.
*/
void
hook_line_exec (struct t_gui_line *line)
{
struct t_hook *ptr_hook, *next_hook;
struct t_hashtable *hashtable, *hashtable2;
char str_value[128], *str_tags;
if (!weechat_hooks[HOOK_TYPE_LINE])
return;
hashtable = NULL;
hook_exec_start ();
ptr_hook = weechat_hooks[HOOK_TYPE_LINE];
while (ptr_hook)
{
next_hook = ptr_hook->next_hook;
if (!ptr_hook->deleted && !ptr_hook->running
&& ((HOOK_LINE(ptr_hook, buffer_type) == -1)
|| ((int)(line->data->buffer->type) == (HOOK_LINE(ptr_hook, buffer_type))))
&& gui_buffer_match_list_split (line->data->buffer,
HOOK_LINE(ptr_hook, num_buffers),
HOOK_LINE(ptr_hook, buffers))
&& (!HOOK_LINE(ptr_hook, tags_array)
|| gui_line_match_tags (line->data,
HOOK_LINE(ptr_hook, tags_count),
HOOK_LINE(ptr_hook, tags_array))))
{
/* create the hashtable that will be sent to callback */
if (!hashtable)
{
hashtable = hashtable_new (32,
WEECHAT_HASHTABLE_STRING,
WEECHAT_HASHTABLE_STRING,
NULL, NULL);
if (!hashtable)
break;
}
HASHTABLE_SET_POINTER("buffer", line->data->buffer);
HASHTABLE_SET_STR("buffer_name", line->data->buffer->full_name);
HASHTABLE_SET_STR("buffer_type",
gui_buffer_type_string[line->data->buffer->type]);
HASHTABLE_SET_INT("y", line->data->y);
HASHTABLE_SET_TIME("date", line->data->date);
HASHTABLE_SET_TIME("date_printed", line->data->date_printed);
HASHTABLE_SET_STR_NOT_NULL("str_time", line->data->str_time);
HASHTABLE_SET_INT("tags_count", line->data->tags_count);
str_tags = string_build_with_split_string (
(const char **)line->data->tags_array, ",");
HASHTABLE_SET_STR_NOT_NULL("tags", str_tags);
if (str_tags)
free (str_tags);
HASHTABLE_SET_INT("displayed", line->data->displayed);
HASHTABLE_SET_INT("notify_level", line->data->notify_level);
HASHTABLE_SET_INT("highlight", line->data->highlight);
HASHTABLE_SET_STR_NOT_NULL("prefix", line->data->prefix);
HASHTABLE_SET_STR_NOT_NULL("message", line->data->message);
/* run callback */
ptr_hook->running = 1;
hashtable2 = (HOOK_LINE(ptr_hook, callback))
(ptr_hook->callback_pointer,
ptr_hook->callback_data,
hashtable);
ptr_hook->running = 0;
if (hashtable2)
{
gui_line_hook_update (line, hashtable, hashtable2);
hashtable_free (hashtable2);
if (!line->data->buffer)
break;
}
}
ptr_hook = next_hook;
}
hook_exec_end ();
if (hashtable)
hashtable_free (hashtable);
}
/*
* Frees data in a line hook.
*/
void
hook_line_free_data (struct t_hook *hook)
{
if (!hook || !hook->hook_data)
return;
if (HOOK_LINE(hook, buffers))
{
string_free_split (HOOK_LINE(hook, buffers));
HOOK_LINE(hook, buffers) = NULL;
}
if (HOOK_LINE(hook, tags_array))
{
string_free_split_tags (HOOK_LINE(hook, tags_array));
HOOK_LINE(hook, tags_array) = NULL;
}
free (hook->hook_data);
hook->hook_data = NULL;
}
/*
* Adds line hook data in the infolist item.
*
* Returns:
* 1: OK
* 0: error
*/
int
hook_line_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_LINE(hook, callback)))
return 0;
if (!infolist_new_var_integer (item, "buffer_type", HOOK_LINE(hook, buffer_type)))
return 0;
if (!infolist_new_var_pointer (item, "buffers", HOOK_LINE(hook, buffers)))
return 0;
if (!infolist_new_var_integer (item, "num_buffers", HOOK_LINE(hook, num_buffers)))
return 0;
if (!infolist_new_var_integer (item, "tags_count", HOOK_LINE(hook, tags_count)))
return 0;
if (!infolist_new_var_pointer (item, "tags_array", HOOK_LINE(hook, tags_array)))
return 0;
return 1;
}
/*
* Prints line hook data in WeeChat log file (usually for crash dump).
*/
void
hook_line_print_log (struct t_hook *hook)
{
int i, j;
if (!hook || !hook->hook_data)
return;
log_printf (" line data:");
log_printf (" callback. . . . . . . : 0x%lx", HOOK_LINE(hook, callback));
log_printf (" buffer_type . . . . . : %d", HOOK_LINE(hook, buffer_type));
log_printf (" buffers . . . . . . . : 0x%lx", HOOK_LINE(hook, buffers));
log_printf (" num_buffers . . . . . : %d", HOOK_LINE(hook, num_buffers));
for (i = 0; i < HOOK_LINE(hook, num_buffers); i++)
{
log_printf (" buffers[%03d]. . . : '%s'",
i, HOOK_LINE(hook, buffers)[i]);
}
log_printf (" tags_count. . . . . . : %d", HOOK_LINE(hook, tags_count));
log_printf (" tags_array. . . . . . : 0x%lx", HOOK_LINE(hook, tags_array));
if (HOOK_LINE(hook, tags_array))
{
for (i = 0; i < HOOK_LINE(hook, tags_count); i++)
{
for (j = 0; HOOK_LINE(hook, tags_array)[i][j]; j++)
{
log_printf (" tags_array[%03d][%03d]: '%s'",
i,
j,
HOOK_LINE(hook, tags_array)[i][j]);
}
}
}
}
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