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-rw-r--r--irc_channel.c701
1 files changed, 701 insertions, 0 deletions
diff --git a/irc_channel.c b/irc_channel.c
new file mode 100644
index 00000000..5d504f66
--- /dev/null
+++ b/irc_channel.c
@@ -0,0 +1,701 @@
+ /********************************************************************\
+ * BitlBee -- An IRC to other IM-networks gateway *
+ * *
+ * Copyright 2002-2010 Wilmer van der Gaast and others *
+ \********************************************************************/
+
+/* The IRC-based UI - Representing (virtual) channels. */
+
+/*
+ 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 with
+ the Debian GNU/Linux distribution in /usr/share/common-licenses/GPL;
+ if not, write to the Free Software Foundation, Inc., 59 Temple Place,
+ Suite 330, Boston, MA 02111-1307 USA
+*/
+
+#include "bitlbee.h"
+
+static char *set_eval_channel_type( set_t *set, char *value );
+static gint irc_channel_user_cmp( gconstpointer a_, gconstpointer b_ );
+static const struct irc_channel_funcs control_channel_funcs;
+
+extern const struct irc_channel_funcs irc_channel_im_chat_funcs;
+
+irc_channel_t *irc_channel_new( irc_t *irc, const char *name )
+{
+ irc_channel_t *ic;
+
+ if( !irc_channel_name_ok( name ) || irc_channel_by_name( irc, name ) )
+ return NULL;
+
+ ic = g_new0( irc_channel_t, 1 );
+ ic->irc = irc;
+ ic->name = g_strdup( name );
+ strcpy( ic->mode, CMODE );
+
+ irc_channel_add_user( ic, irc->root );
+
+ irc->channels = g_slist_append( irc->channels, ic );
+
+ set_add( &ic->set, "auto_join", "false", set_eval_bool, ic );
+ set_add( &ic->set, "type", "control", set_eval_channel_type, ic );
+
+ if( name[0] == '&' )
+ set_setstr( &ic->set, "type", "control" );
+ else /* if( name[0] == '#' ) */
+ set_setstr( &ic->set, "type", "chat" );
+
+ return ic;
+}
+
+irc_channel_t *irc_channel_by_name( irc_t *irc, const char *name )
+{
+ GSList *l;
+
+ for( l = irc->channels; l; l = l->next )
+ {
+ irc_channel_t *ic = l->data;
+
+ if( irc_channel_name_cmp( name, ic->name ) == 0 )
+ return ic;
+ }
+
+ return NULL;
+}
+
+irc_channel_t *irc_channel_get( irc_t *irc, char *id )
+{
+ irc_channel_t *ic, *ret = NULL;
+ GSList *l;
+ int nr;
+
+ if( sscanf( id, "%d", &nr ) == 1 && nr < 1000 )
+ {
+ for( l = irc->channels; l; l = l->next )
+ {
+ ic = l->data;
+ if( ( nr-- ) == 0 )
+ return ic;
+ }
+
+ return NULL;
+ }
+
+ /* Exact match first: Partial match only sucks if there's a channel
+ #aa and #aabb */
+ if( ( ret = irc_channel_by_name( irc, id ) ) )
+ return ret;
+
+ for( l = irc->channels; l; l = l->next )
+ {
+ ic = l->data;
+
+ if( strstr( ic->name, id ) )
+ {
+ /* Make sure it's a unique match. */
+ if( !ret )
+ ret = ic;
+ else
+ return NULL;
+ }
+ }
+
+ return ret;
+}
+
+int irc_channel_free( irc_channel_t *ic )
+{
+ irc_t *irc = ic->irc;
+
+ if( ic->flags & IRC_CHANNEL_JOINED )
+ irc_channel_del_user( ic, irc->user, IRC_CDU_KICK, "Cleaning up channel" );
+
+ if( ic->f->_free )
+ ic->f->_free( ic );
+
+ while( ic->set )
+ set_del( &ic->set, ic->set->key );
+
+ irc->channels = g_slist_remove( irc->channels, ic );
+ while( ic->users )
+ {
+ g_free( ic->users->data );
+ ic->users = g_slist_remove( ic->users, ic->users->data );
+ }
+
+ g_free( ic->name );
+ g_free( ic->topic );
+ g_free( ic->topic_who );
+ g_free( ic );
+
+ return 1;
+}
+
+struct irc_channel_free_data
+{
+ irc_t *irc;
+ irc_channel_t *ic;
+ char *name;
+};
+
+static gboolean irc_channel_free_callback( gpointer data, gint fd, b_input_condition cond )
+{
+ struct irc_channel_free_data *d = data;
+
+ if( g_slist_find( irc_connection_list, d->irc ) &&
+ irc_channel_by_name( d->irc, d->name ) == d->ic &&
+ !( d->ic->flags & IRC_CHANNEL_JOINED ) )
+ irc_channel_free( d->ic );
+
+ g_free( d->name );
+ g_free( d );
+ return FALSE;
+}
+
+/* Free the channel, but via the event loop, so after finishing whatever event
+ we're currently handling. */
+void irc_channel_free_soon( irc_channel_t *ic )
+{
+ struct irc_channel_free_data *d = g_new0( struct irc_channel_free_data, 1 );
+
+ d->irc = ic->irc;
+ d->ic = ic;
+ d->name = g_strdup( ic->name );
+
+ b_timeout_add( 0, irc_channel_free_callback, d );
+}
+
+static char *set_eval_channel_type( set_t *set, char *value )
+{
+ struct irc_channel *ic = set->data;
+ const struct irc_channel_funcs *new;
+
+ if( strcmp( value, "control" ) == 0 )
+ new = &control_channel_funcs;
+ else if( strcmp( value, "chat" ) == 0 )
+ new = &irc_channel_im_chat_funcs;
+ else
+ return SET_INVALID;
+
+ /* TODO: Return values. */
+ if( ic->f && ic->f->_free )
+ ic->f->_free( ic );
+
+ ic->f = new;
+
+ if( ic->f && ic->f->_init )
+ ic->f->_init( ic );
+
+ return value;
+}
+
+int irc_channel_add_user( irc_channel_t *ic, irc_user_t *iu )
+{
+ irc_channel_user_t *icu;
+
+ if( irc_channel_has_user( ic, iu ) )
+ return 0;
+
+ icu = g_new0( irc_channel_user_t, 1 );
+ icu->iu = iu;
+
+ ic->users = g_slist_insert_sorted( ic->users, icu, irc_channel_user_cmp );
+
+ irc_channel_update_ops( ic, set_getstr( &ic->irc->b->set, "ops" ) );
+
+ if( iu == ic->irc->user || ic->flags & IRC_CHANNEL_JOINED )
+ {
+ ic->flags |= IRC_CHANNEL_JOINED;
+ irc_send_join( ic, iu );
+ }
+
+ return 1;
+}
+
+int irc_channel_del_user( irc_channel_t *ic, irc_user_t *iu, irc_channel_del_user_type_t type, const char *msg )
+{
+ irc_channel_user_t *icu;
+
+ if( !( icu = irc_channel_has_user( ic, iu ) ) )
+ return 0;
+
+ ic->users = g_slist_remove( ic->users, icu );
+ g_free( icu );
+
+ if( !( ic->flags & IRC_CHANNEL_JOINED ) || type == IRC_CDU_SILENT ) {}
+ /* Do nothing. The caller should promise it won't screw
+ up state of the IRC client. :-) */
+ else if( type == IRC_CDU_PART )
+ irc_send_part( ic, iu, msg );
+ else if( type == IRC_CDU_KICK )
+ irc_send_kick( ic, iu, ic->irc->root, msg );
+
+ if( iu == ic->irc->user )
+ {
+ ic->flags &= ~IRC_CHANNEL_JOINED;
+
+ if( ic->irc->status & USTATUS_SHUTDOWN )
+ {
+ /* Don't do anything fancy when we're shutting down anyway. */
+ }
+ else if( ic->flags & IRC_CHANNEL_TEMP )
+ {
+ irc_channel_free_soon( ic );
+ }
+ else
+ {
+ /* Flush userlist now. The user won't see it anyway. */
+ while( ic->users )
+ {
+ g_free( ic->users->data );
+ ic->users = g_slist_remove( ic->users, ic->users->data );
+ }
+ irc_channel_add_user( ic, ic->irc->root );
+ }
+ }
+
+ return 1;
+}
+
+irc_channel_user_t *irc_channel_has_user( irc_channel_t *ic, irc_user_t *iu )
+{
+ GSList *l;
+
+ for( l = ic->users; l; l = l->next )
+ {
+ irc_channel_user_t *icu = l->data;
+
+ if( icu->iu == iu )
+ return icu;
+ }
+
+ return NULL;
+}
+
+int irc_channel_set_topic( irc_channel_t *ic, const char *topic, const irc_user_t *iu )
+{
+ g_free( ic->topic );
+ ic->topic = g_strdup( topic );
+
+ g_free( ic->topic_who );
+ if( iu )
+ ic->topic_who = g_strdup_printf( "%s!%s@%s", iu->nick, iu->user, iu->host );
+ else
+ ic->topic_who = NULL;
+
+ ic->topic_time = time( NULL );
+
+ if( ic->flags & IRC_CHANNEL_JOINED )
+ irc_send_topic( ic, TRUE );
+
+ return 1;
+}
+
+void irc_channel_user_set_mode( irc_channel_t *ic, irc_user_t *iu, irc_channel_user_flags_t flags )
+{
+ irc_channel_user_t *icu = irc_channel_has_user( ic, iu );
+
+ if( !icu || icu->flags == flags )
+ return;
+
+ if( ic->flags & IRC_CHANNEL_JOINED )
+ irc_send_channel_user_mode_diff( ic, iu, icu->flags, flags );
+
+ icu->flags = flags;
+}
+
+void irc_channel_auto_joins( irc_t *irc, account_t *acc )
+{
+ GSList *l;
+
+ for( l = irc->channels; l; l = l->next )
+ {
+ irc_channel_t *ic = l->data;
+ gboolean aj = set_getbool( &ic->set, "auto_join" );
+ char *type;
+
+ if( acc &&
+ ( type = set_getstr( &ic->set, "chat_type" ) ) &&
+ strcmp( type, "room" ) == 0 )
+ {
+ /* Bit of an ugly special case: Handle chatrooms here, we
+ can only auto-join them if their account is online. */
+ char *acc_s;
+
+ if( !aj && !( ic->flags & IRC_CHANNEL_JOINED ) )
+ /* Only continue if this one's marked as auto_join
+ or if we're in it already. (Possible if the
+ client auto-rejoined it before identyfing.) */
+ continue;
+ else if( !( acc_s = set_getstr( &ic->set, "account" ) ) )
+ continue;
+ else if( account_get( irc->b, acc_s ) != acc )
+ continue;
+ else if( acc->ic == NULL || !( acc->ic->flags & OPT_LOGGED_IN ) )
+ continue;
+ else
+ ic->f->join( ic );
+ }
+ else if( aj )
+ {
+ irc_channel_add_user( ic, irc->user );
+ }
+ }
+}
+
+void irc_channel_printf( irc_channel_t *ic, char *format, ... )
+{
+ va_list params;
+ char *text;
+
+ va_start( params, format );
+ text = g_strdup_vprintf( format, params );
+ va_end( params );
+
+ irc_send_msg( ic->irc->root, "PRIVMSG", ic->name, text, NULL );
+ g_free( text );
+}
+
+gboolean irc_channel_name_ok( const char *name_ )
+{
+ const unsigned char *name = (unsigned char*) name_;
+ int i;
+
+ if( name_[0] == '\0' )
+ return FALSE;
+
+ /* Check if the first character is in CTYPES (#&) */
+ if( strchr( CTYPES, name_[0] ) == NULL )
+ return FALSE;
+
+ /* RFC 1459 keeps amazing me: While only a "few" chars are allowed
+ in nicknames, channel names can be pretty much anything as long
+ as they start with # or &. I'll be a little bit more strict and
+ disallow all non-printable characters. */
+ for( i = 1; name[i]; i ++ )
+ if( name[i] <= ' ' || name[i] == ',' )
+ return FALSE;
+
+ return TRUE;
+}
+
+void irc_channel_name_strip( char *name )
+{
+ int i, j;
+
+ for( i = j = 0; name[i]; i ++ )
+ if( name[i] > ' ' && name[i] != ',' )
+ name[j++] = name[i];
+
+ name[j] = '\0';
+}
+
+int irc_channel_name_cmp( const char *a_, const char *b_ )
+{
+ static unsigned char case_map[256];
+ const unsigned char *a = (unsigned char*) a_, *b = (unsigned char*) b_;
+ int i;
+
+ if( case_map['A'] == '\0' )
+ {
+ for( i = 33; i < 256; i ++ )
+ if( i != ',' )
+ case_map[i] = i;
+
+ for( i = 0; i < 26; i ++ )
+ case_map['A'+i] = 'a' + i;
+
+ case_map['['] = '{';
+ case_map[']'] = '}';
+ case_map['~'] = '`';
+ case_map['\\'] = '|';
+ }
+
+ if( !irc_channel_name_ok( a_ ) || !irc_channel_name_ok( b_ ) )
+ return -1;
+
+ for( i = 0; a[i] && b[i] && case_map[a[i]] && case_map[b[i]]; i ++ )
+ {
+ if( case_map[a[i]] == case_map[b[i]] )
+ continue;
+ else
+ return case_map[a[i]] - case_map[b[i]];
+ }
+
+ return case_map[a[i]] - case_map[b[i]];
+}
+
+static gint irc_channel_user_cmp( gconstpointer a_, gconstpointer b_ )
+{
+ const irc_channel_user_t *a = a_, *b = b_;
+
+ return irc_user_cmp( a->iu, b->iu );
+}
+
+void irc_channel_update_ops( irc_channel_t *ic, char *value )
+{
+ irc_channel_user_set_mode( ic, ic->irc->root,
+ ( strcmp( value, "both" ) == 0 ||
+ strcmp( value, "root" ) == 0 ) ? IRC_CHANNEL_USER_OP : 0 );
+ irc_channel_user_set_mode( ic, ic->irc->user,
+ ( strcmp( value, "both" ) == 0 ||
+ strcmp( value, "user" ) == 0 ) ? IRC_CHANNEL_USER_OP : 0 );
+}
+
+char *set_eval_irc_channel_ops( set_t *set, char *value )
+{
+ irc_t *irc = set->data;
+ GSList *l;
+
+ if( strcmp( value, "both" ) != 0 && strcmp( value, "none" ) != 0 &&
+ strcmp( value, "user" ) != 0 && strcmp( value, "root" ) != 0 )
+ return SET_INVALID;
+
+ for( l = irc->channels; l; l = l->next )
+ irc_channel_update_ops( l->data, value );
+
+ return value;
+}
+
+/* Channel-type dependent functions, for control channels: */
+static gboolean control_channel_privmsg( irc_channel_t *ic, const char *msg )
+{
+ irc_t *irc = ic->irc;
+ const char *s;
+
+ /* Scan for non-whitespace chars followed by a colon: */
+ for( s = msg; *s && !isspace( *s ) && *s != ':' && *s != ','; s ++ ) {}
+
+ if( *s == ':' || *s == ',' )
+ {
+ char to[s-msg+1];
+ irc_user_t *iu;
+
+ memset( to, 0, sizeof( to ) );
+ strncpy( to, msg, s - msg );
+ while( *(++s) && isspace( *s ) ) {}
+
+ iu = irc_user_by_name( irc, to );
+ if( iu && iu->f->privmsg )
+ {
+ iu->last_channel = ic;
+ iu->f->privmsg( iu, s );
+ }
+ else
+ {
+ irc_channel_printf( ic, "User does not exist: %s", to );
+ }
+ }
+ else
+ {
+ /* TODO: Maybe just use root->privmsg here now? */
+ char cmd[strlen(msg)+1];
+
+ g_free( ic->irc->last_root_cmd );
+ ic->irc->last_root_cmd = g_strdup( ic->name );
+
+ strcpy( cmd, msg );
+ root_command_string( ic->irc, cmd );
+ }
+
+ return TRUE;
+}
+
+static gboolean control_channel_invite( irc_channel_t *ic, irc_user_t *iu )
+{
+ struct irc_control_channel *icc = ic->data;
+ bee_user_t *bu = iu->bu;
+
+ if( bu == NULL )
+ return FALSE;
+
+ if( icc->type != IRC_CC_TYPE_GROUP )
+ {
+ irc_send_num( ic->irc, 482, "%s :Invitations are only possible to fill_by=group channels", ic->name );
+ return FALSE;
+ }
+
+ bu->ic->acc->prpl->add_buddy( bu->ic, bu->handle,
+ icc->group ? icc->group->name : NULL );
+
+ return TRUE;
+}
+
+static char *set_eval_by_account( set_t *set, char *value );
+static char *set_eval_fill_by( set_t *set, char *value );
+static char *set_eval_by_group( set_t *set, char *value );
+static char *set_eval_by_protocol( set_t *set, char *value );
+static char *set_eval_show_users( set_t *set, char *value );
+
+static gboolean control_channel_init( irc_channel_t *ic )
+{
+ struct irc_control_channel *icc;
+
+ set_add( &ic->set, "account", NULL, set_eval_by_account, ic );
+ set_add( &ic->set, "fill_by", "all", set_eval_fill_by, ic );
+ set_add( &ic->set, "group", NULL, set_eval_by_group, ic );
+ set_add( &ic->set, "protocol", NULL, set_eval_by_protocol, ic );
+
+ /* When changing the default, also change it below. */
+ set_add( &ic->set, "show_users", "online+,away", set_eval_show_users, ic );
+
+ ic->data = icc = g_new0( struct irc_control_channel, 1 );
+ icc->type = IRC_CC_TYPE_DEFAULT;
+
+ /* Have to run the evaluator to initialize icc->modes. */
+ set_setstr( &ic->set, "show_users", "online+,away" );
+
+ return TRUE;
+}
+
+static gboolean control_channel_join( irc_channel_t *ic )
+{
+ bee_irc_channel_update( ic->irc, ic, NULL );
+
+ return TRUE;
+}
+
+static char *set_eval_by_account( set_t *set, char *value )
+{
+ struct irc_channel *ic = set->data;
+ struct irc_control_channel *icc = ic->data;
+ account_t *acc;
+
+ if( !( acc = account_get( ic->irc->b, value ) ) )
+ return SET_INVALID;
+
+ icc->account = acc;
+ if( icc->type == IRC_CC_TYPE_ACCOUNT )
+ bee_irc_channel_update( ic->irc, ic, NULL );
+
+ return g_strdup( acc->tag );
+}
+
+static char *set_eval_fill_by( set_t *set, char *value )
+{
+ struct irc_channel *ic = set->data;
+ struct irc_control_channel *icc = ic->data;
+
+ if( strcmp( value, "all" ) == 0 )
+ icc->type = IRC_CC_TYPE_DEFAULT;
+ else if( strcmp( value, "rest" ) == 0 )
+ icc->type = IRC_CC_TYPE_REST;
+ else if( strcmp( value, "group" ) == 0 )
+ icc->type = IRC_CC_TYPE_GROUP;
+ else if( strcmp( value, "account" ) == 0 )
+ icc->type = IRC_CC_TYPE_ACCOUNT;
+ else if( strcmp( value, "protocol" ) == 0 )
+ icc->type = IRC_CC_TYPE_PROTOCOL;
+ else
+ return SET_INVALID;
+
+ bee_irc_channel_update( ic->irc, ic, NULL );
+ return value;
+}
+
+static char *set_eval_by_group( set_t *set, char *value )
+{
+ struct irc_channel *ic = set->data;
+ struct irc_control_channel *icc = ic->data;
+
+ icc->group = bee_group_by_name( ic->irc->b, value, TRUE );
+ if( icc->type == IRC_CC_TYPE_GROUP )
+ bee_irc_channel_update( ic->irc, ic, NULL );
+
+ return g_strdup( icc->group->name );
+}
+
+static char *set_eval_by_protocol( set_t *set, char *value )
+{
+ struct irc_channel *ic = set->data;
+ struct irc_control_channel *icc = ic->data;
+ struct prpl *prpl;
+
+ if( !( prpl = find_protocol( value ) ) )
+ return SET_INVALID;
+
+ icc->protocol = prpl;
+ if( icc->type == IRC_CC_TYPE_PROTOCOL )
+ bee_irc_channel_update( ic->irc, ic, NULL );
+
+ return value;
+}
+
+static char *set_eval_show_users( set_t *set, char *value )
+{
+ struct irc_channel *ic = set->data;
+ struct irc_control_channel *icc = ic->data;
+ char **parts = g_strsplit( value, ",", 0 ), **part;
+ char modes[4];
+
+ memset( modes, 0, 4 );
+ for( part = parts; *part; part ++ )
+ {
+ char last, modechar = IRC_CHANNEL_USER_NONE;
+
+ if( **part == '\0' )
+ goto fail;
+
+ last = (*part)[strlen(*part+1)];
+ if( last == '+' )
+ modechar = IRC_CHANNEL_USER_VOICE;
+ else if( last == '%' )
+ modechar = IRC_CHANNEL_USER_HALFOP;
+ else if( last == '@' )
+ modechar = IRC_CHANNEL_USER_OP;
+
+ if( strncmp( *part, "offline", 7 ) == 0 )
+ modes[0] = modechar;
+ else if( strncmp( *part, "away", 4 ) == 0 )
+ modes[1] = modechar;
+ else if( strncmp( *part, "online", 6 ) == 0 )
+ modes[2] = modechar;
+ else
+ goto fail;
+ }
+ memcpy( icc->modes, modes, 4 );
+ bee_irc_channel_update( ic->irc, ic, NULL );
+
+ g_strfreev( parts );
+ return value;
+
+fail:
+ g_strfreev( parts );
+ return SET_INVALID;
+}
+
+static gboolean control_channel_free( irc_channel_t *ic )
+{
+ struct irc_control_channel *icc = ic->data;
+
+ set_del( &ic->set, "account" );
+ set_del( &ic->set, "fill_by" );
+ set_del( &ic->set, "group" );
+ set_del( &ic->set, "protocol" );
+
+ g_free( icc );
+ ic->data = NULL;
+
+ return TRUE;
+}
+
+static const struct irc_channel_funcs control_channel_funcs = {
+ control_channel_privmsg,
+ control_channel_join,
+ NULL,
+ NULL,
+ control_channel_invite,
+
+ control_channel_init,
+ control_channel_free,
+};
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-27 19:56:55 +0000