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/*
chat-protocol.c : irssi
Copyright (C) 2000 Timo Sirainen
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 2 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, write to the Free Software
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "module.h"
#include "modules.h"
#include "signals.h"
#include "chat-protocols.h"
#include "chatnets.h"
#include "servers.h"
#include "servers-setup.h"
#include "channels-setup.h"
GSList *chat_protocols;
static CHAT_PROTOCOL_REC *default_proto;
void *chat_protocol_check_cast(void *object, int type_pos, const char *id)
{
return object == NULL ||
chat_protocol_lookup(id) !=
G_STRUCT_MEMBER(int, object, type_pos) ? NULL : object;
}
/* Return the ID for the specified chat protocol. */
int chat_protocol_lookup(const char *name)
{
CHAT_PROTOCOL_REC *rec;
g_return_val_if_fail(name != NULL, -1);
rec = chat_protocol_find(name);
return rec == NULL ? -1 : rec->id;
}
CHAT_PROTOCOL_REC *chat_protocol_find(const char *name)
{
GSList *tmp;
g_return_val_if_fail(name != NULL, NULL);
for (tmp = chat_protocols; tmp != NULL; tmp = tmp->next) {
CHAT_PROTOCOL_REC *rec = tmp->data;
if (g_strcasecmp(rec->name, name) == 0)
return rec;
}
return NULL;
}
CHAT_PROTOCOL_REC *chat_protocol_find_id(int id)
{
GSList *tmp;
g_return_val_if_fail(id > 0, NULL);
for (tmp = chat_protocols; tmp != NULL; tmp = tmp->next) {
CHAT_PROTOCOL_REC *rec = tmp->data;
if (rec->id == id)
return rec;
}
return NULL;
}
CHAT_PROTOCOL_REC *chat_protocol_find_net(GHashTable *optlist)
{
GSList *tmp;
g_return_val_if_fail(optlist != NULL, NULL);
for (tmp = chat_protocols; tmp != NULL; tmp = tmp->next) {
CHAT_PROTOCOL_REC *rec = tmp->data;
if (rec->chatnet != NULL &&
g_hash_table_lookup(optlist, rec->chatnet) != NULL)
return rec;
}
return NULL;
}
/* Register new chat protocol. */
CHAT_PROTOCOL_REC *chat_protocol_register(CHAT_PROTOCOL_REC *rec)
{
CHAT_PROTOCOL_REC *newrec;
int created;
g_return_val_if_fail(rec != NULL, NULL);
newrec = chat_protocol_find(rec->name);
created = newrec == NULL;
if (newrec == NULL) {
newrec = g_new0(CHAT_PROTOCOL_REC, 1);
chat_protocols = g_slist_append(chat_protocols, newrec);
} else {
/* updating existing protocol */
g_free(newrec->name);
}
memcpy(newrec, rec, sizeof(CHAT_PROTOCOL_REC));
newrec->id = module_get_uniq_id_str("PROTOCOL", rec->name);
newrec->name = g_strdup(rec->name);
if (default_proto == NULL)
chat_protocol_set_default(newrec);
if (created)
signal_emit("chat protocol created", 1, newrec);
else
signal_emit("chat protocol updated", 1, newrec);
return newrec;
}
static void chat_protocol_destroy(CHAT_PROTOCOL_REC *rec)
{
g_return_if_fail(rec != NULL);
chat_protocols = g_slist_remove(chat_protocols, rec);
if (default_proto == rec) {
chat_protocol_set_default(chat_protocols == NULL ? NULL :
chat_protocols->data);
}
signal_emit("chat protocol destroyed", 1, rec);
g_free(rec->name);
g_free(rec);
}
/* Unregister chat protocol. */
void chat_protocol_unregister(const char *name)
{
CHAT_PROTOCOL_REC *rec;
g_return_if_fail(name != NULL);
rec = chat_protocol_find(name);
if (rec != NULL) {
chat_protocol_destroy(rec);
/* there might still be references to this chat protocol -
recreate it as a dummy protocol */
chat_protocol_get_unknown(name);
}
}
/* Default chat protocol to use */
void chat_protocol_set_default(CHAT_PROTOCOL_REC *rec)
{
default_proto = rec;
}
CHAT_PROTOCOL_REC *chat_protocol_get_default(void)
{
return default_proto;
}
static CHATNET_REC *create_chatnet(void)
{
return g_new0(CHATNET_REC, 1);
}
static SERVER_SETUP_REC *create_server_setup(void)
{
return g_new0(SERVER_SETUP_REC, 1);
}
static CHANNEL_SETUP_REC *create_channel_setup(void)
{
return g_new0(CHANNEL_SETUP_REC, 1);
}
static SERVER_CONNECT_REC *create_server_connect(void)
{
return g_new0(SERVER_CONNECT_REC, 1);
}
static void destroy_server_connect(SERVER_CONNECT_REC *conn)
{
}
/* Return "unknown chat protocol" record. Used when protocol name is
specified but it isn't registered yet. */
CHAT_PROTOCOL_REC *chat_protocol_get_unknown(const char *name)
{
CHAT_PROTOCOL_REC *rec, *newrec;
g_return_val_if_fail(name != NULL, NULL);
rec = chat_protocol_find(name);
if (rec != NULL)
return rec;
rec = g_new0(CHAT_PROTOCOL_REC, 1);
rec->not_initialized = TRUE;
rec->name = (char *) name;
rec->create_chatnet = create_chatnet;
rec->create_server_setup = create_server_setup;
rec->create_channel_setup = create_channel_setup;
rec->create_server_connect = create_server_connect;
rec->destroy_server_connect = destroy_server_connect;
newrec = chat_protocol_register(rec);
g_free(rec);
return newrec;
}
void chat_protocols_init(void)
{
default_proto = NULL;
chat_protocols = NULL;
}
void chat_protocols_deinit(void)
{
while (chat_protocols != NULL)
chat_protocol_destroy(chat_protocols->data);
}
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