external/uhub
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Added a chat only hub plugin that disables searching and connection setup.

Browse Source 
This also deprecates the built-in chat_only configuration option.
If you need this functionality, then load the mod_chat_only plugin (if it is loaded then only operators
are able to search, connect, etc).
This commit is contained in:
Jan Vidar Krey
2012-01-09 19:54:03 +01:00
parent f44a420970
commit eee2636582
12 changed files with 226 additions and 31 deletions
Download Patch File Download Diff File Expand all files Collapse all files

163
src/plugins/mod_chat_only.c Normal file
View File

@@ -0,0 +1,163 @@
/*
* uhub - A tiny ADC p2p connection hub
* Copyright (C) 2007-2012, Jan Vidar Krey
*
* 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 3 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/>.
*
*/
#include "plugin_api/handle.h"
#include "util/memory.h"
enum Warnings
{
WARN_SEARCH = 0x01, ///<<< "Warn about searching."
WARN_CONNECT = 0x02, ///<<< "Warn about connecting to a user"
WARN_EXTRA = 0x08, ///<<< "Warn about unknown protocol data."
};
struct user_info
{
sid_t sid; // The SID of the user
int warnings; // The number of denies (used to track wether or not a warning should be sent). @see enum Warnings.
};
struct chat_only_data
{
size_t num_users; // number of users tracked.
size_t max_users; // max users (hard limit max 1M users due to limitations in the SID (20 bits)).
struct user_info* users; // array of max_users
int operator_override; // operators are allowed to override these limitations.
};
static struct chat_only_data* co_initialize()
{
struct chat_only_data* data = (struct chat_only_data*) hub_malloc(sizeof(struct chat_only_data));
data->num_users = 0;
data->max_users = 512;
data->users = hub_malloc_zero(sizeof(struct user_info) * data->max_users);
return data;
}
static void co_shutdown(struct chat_only_data* data)
{
if (data)
{
hub_free(data->users);
hub_free(data);
}
}
static struct user_info* get_user_info(struct chat_only_data* data, sid_t sid)
{
struct user_info* u;
// resize buffer if needed.
if (sid > data->max_users) // FIXME: >= ?
{
u = hub_malloc_zero(sizeof(struct user_info) * (sid + 1));
memcpy(u, data->users, data->max_users);
hub_free(data->users);
data->users = u;
data->max_users = sid;
u = NULL;
}
u = &data->users[sid];
// reset counters if the user was not previously known.
if (!u->sid)
{
u->sid = sid;
u->warnings = 0;
data->num_users++;
}
return u;
}
static plugin_st on_search_result(struct plugin_handle* plugin, struct plugin_user* from, struct plugin_user* to, const char* search_data)
{
return st_deny;
}
static plugin_st on_search(struct plugin_handle* plugin, struct plugin_user* user, const char* search_data)
{
struct chat_only_data* data = (struct chat_only_data*) plugin->ptr;
struct user_info* info = get_user_info(data, user->sid);
if (user->credentials >= auth_cred_operator && data->operator_override)
return st_allow;
if (!(info->warnings & WARN_SEARCH))
{
plugin->hub.send_status_message(plugin, user, 000, "Searching is disabled. This is a chat only hub.");
info->warnings |= WARN_SEARCH;
}
return st_deny;
}
static plugin_st on_p2p_connect(struct plugin_handle* plugin, struct plugin_user* from, struct plugin_user* to)
{
struct chat_only_data* data = (struct chat_only_data*) plugin->ptr;
struct user_info* info = get_user_info(data, from->sid);
if (from->credentials >= auth_cred_operator && data->operator_override)
return st_allow;
if (!(info->warnings & WARN_CONNECT))
{
plugin->hub.send_status_message(plugin, from, 000, "Connection setup denied. This is a chat only hub.");
info->warnings |= WARN_CONNECT;
}
return st_deny;
}
static void on_user_login(struct plugin_handle* plugin, struct plugin_user* user)
{
struct chat_only_data* data = (struct chat_only_data*) plugin->ptr;
/*struct user_info* info = */
get_user_info(data, user->sid);
}
static void on_user_logout(struct plugin_handle* plugin, struct plugin_user* user, const char* reason)
{
struct chat_only_data* data = (struct chat_only_data*) plugin->ptr;
struct user_info* info = get_user_info(data, user->sid);
if (info->sid)
data->num_users--;
info->warnings = 0;
info->sid = 0;
}
int plugin_register(struct plugin_handle* plugin, const char* config)
{
PLUGIN_INITIALIZE(plugin, "Chat only hub", "1.0", "Disables connection setup, search and results.");
plugin->ptr = co_initialize();
plugin->funcs.on_search = on_search;
plugin->funcs.on_search_result = on_search_result;
plugin->funcs.on_p2p_connect = on_p2p_connect;
plugin->funcs.on_p2p_revconnect = on_p2p_connect;
plugin->funcs.on_user_login = on_user_login;
plugin->funcs.on_user_logout = on_user_logout;
return 0;
}
int plugin_unregister(struct plugin_handle* plugin)
{
co_shutdown((struct chat_only_data*) plugin->ptr);
return 0;
}