/* * Copyright (C) 2003-2023 Sébastien Helleu * Copyright (C) 2012 Simon Arlott * * 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 . */ #ifndef WEECHAT_PLUGIN_IRC_SERVER_H #define WEECHAT_PLUGIN_IRC_SERVER_H #include #include #include #include #ifndef NI_MAXHOST #define NI_MAXHOST 256 #endif /* NI_MAXHOST */ enum t_irc_server_sasl_fail { IRC_SERVER_SASL_FAIL_CONTINUE = 0, IRC_SERVER_SASL_FAIL_RECONNECT, IRC_SERVER_SASL_FAIL_DISCONNECT, /* number of SASL fail options */ IRC_SERVER_NUM_SASL_FAIL, }; enum t_irc_server_charset_message { IRC_SERVER_CHARSET_MESSAGE_MESSAGE = 0, IRC_SERVER_CHARSET_MESSAGE_CHANNEL, IRC_SERVER_CHARSET_MESSAGE_TEXT, }; enum t_irc_server_option { IRC_SERVER_OPTION_ADDRESSES = 0, /* server addresses (IP/name with port) */ IRC_SERVER_OPTION_PROXY, /* proxy used for server (optional) */ IRC_SERVER_OPTION_IPV6, /* use IPv6 protocol */ IRC_SERVER_OPTION_TLS, /* TLS protocol */ IRC_SERVER_OPTION_TLS_CERT, /* client TLS certificate file */ IRC_SERVER_OPTION_TLS_PASSWORD, /* client TLS certificate key password */ IRC_SERVER_OPTION_TLS_PRIORITIES, /* gnutls priorities */ IRC_SERVER_OPTION_TLS_DHKEY_SIZE, /* Diffie Hellman key size */ IRC_SERVER_OPTION_TLS_FINGERPRINT, /* SHA1 fingerprint of certificate */ IRC_SERVER_OPTION_TLS_VERIFY, /* check if the connection is trusted */ IRC_SERVER_OPTION_PASSWORD, /* password for server */ IRC_SERVER_OPTION_CAPABILITIES, /* client capabilities to enable */ IRC_SERVER_OPTION_SASL_MECHANISM,/* mechanism for SASL authentication */ IRC_SERVER_OPTION_SASL_USERNAME, /* username for SASL authentication */ IRC_SERVER_OPTION_SASL_PASSWORD, /* password for SASL authentication */ IRC_SERVER_OPTION_SASL_KEY, /* key for ECDSA-NIST256P-CHALLENGE */ IRC_SERVER_OPTION_SASL_TIMEOUT, /* timeout for SASL authentication */ IRC_SERVER_OPTION_SASL_FAIL, /* action on SASL fail */ IRC_SERVER_OPTION_AUTOCONNECT, /* autoconnect to server at startup */ IRC_SERVER_OPTION_AUTORECONNECT, /* autoreconnect when disconnected */ IRC_SERVER_OPTION_AUTORECONNECT_DELAY, /* delay before trying again reco */ IRC_SERVER_OPTION_NICKS, /* nicknames (comma separated list) */ IRC_SERVER_OPTION_NICKS_ALTERNATE, /* use alternate nicknames */ IRC_SERVER_OPTION_USERNAME, /* user name */ IRC_SERVER_OPTION_REALNAME, /* real name */ IRC_SERVER_OPTION_LOCAL_HOSTNAME,/* custom local hostname */ IRC_SERVER_OPTION_USERMODE, /* usermode to set once connected */ IRC_SERVER_OPTION_COMMAND, /* command to run once connected */ IRC_SERVER_OPTION_COMMAND_DELAY, /* delay after execution of command */ IRC_SERVER_OPTION_AUTOJOIN, /* channels to automatically join */ IRC_SERVER_OPTION_AUTOJOIN_DYNAMIC, /* auto set autojoin option */ IRC_SERVER_OPTION_AUTOREJOIN, /* auto rejoin channels when kicked */ IRC_SERVER_OPTION_AUTOREJOIN_DELAY, /* delay before auto rejoin */ IRC_SERVER_OPTION_CONNECTION_TIMEOUT, /* timeout for connection */ IRC_SERVER_OPTION_ANTI_FLOOD_PRIO_HIGH, /* anti-flood (high priority) */ IRC_SERVER_OPTION_ANTI_FLOOD_PRIO_LOW, /* anti-flood (low priority) */ IRC_SERVER_OPTION_AWAY_CHECK, /* delay between away checks */ IRC_SERVER_OPTION_AWAY_CHECK_MAX_NICKS, /* max nicks for away check */ IRC_SERVER_OPTION_MSG_KICK, /* default kick message */ IRC_SERVER_OPTION_MSG_PART, /* default part message */ IRC_SERVER_OPTION_MSG_QUIT, /* default quit message */ IRC_SERVER_OPTION_NOTIFY, /* notify list */ IRC_SERVER_OPTION_SPLIT_MSG_MAX_LENGTH, /* max length of messages */ IRC_SERVER_OPTION_CHARSET_MESSAGE, /* what to decode/encode in msg */ IRC_SERVER_OPTION_DEFAULT_CHANTYPES, /* chantypes if not received */ IRC_SERVER_OPTION_REGISTERED_MODE, /* mode set on registered user */ /* number of server options */ IRC_SERVER_NUM_OPTIONS, }; #define IRC_SERVER_OPTION_BOOLEAN(__server, __index) \ ((!weechat_config_option_is_null(__server->options[__index])) ? \ weechat_config_boolean(__server->options[__index]) : \ ((!weechat_config_option_is_null(irc_config_server_default[__index])) ? \ weechat_config_boolean(irc_config_server_default[__index]) \ : weechat_config_boolean_default(irc_config_server_default[__index]))) #define IRC_SERVER_OPTION_INTEGER(__server, __index) \ ((!weechat_config_option_is_null(__server->options[__index])) ? \ weechat_config_integer(__server->options[__index]) : \ ((!weechat_config_option_is_null(irc_config_server_default[__index])) ? \ weechat_config_integer(irc_config_server_default[__index]) \ : weechat_config_integer_default(irc_config_server_default[__index]))) #define IRC_SERVER_OPTION_STRING(__server, __index) \ ((!weechat_config_option_is_null(__server->options[__index])) ? \ weechat_config_string(__server->options[__index]) : \ ((!weechat_config_option_is_null(irc_config_server_default[__index])) ? \ weechat_config_string(irc_config_server_default[__index]) \ : weechat_config_string_default(irc_config_server_default[__index]))) #define IRC_SERVER_OPTION_ENUM(__server, __index) \ ((!weechat_config_option_is_null(__server->options[__index])) ? \ weechat_config_enum(__server->options[__index]) : \ ((!weechat_config_option_is_null(irc_config_server_default[__index])) ? \ weechat_config_enum(irc_config_server_default[__index]) \ : weechat_config_enum_default(irc_config_server_default[__index]))) #define IRC_SERVER_DEFAULT_PORT_CLEARTEXT 6667 #define IRC_SERVER_DEFAULT_PORT_TLS 6697 #define IRC_SERVER_DEFAULT_NICKS "weechat1,weechat2,weechat3,weechat4,weechat5" /* number of queues for sending messages */ #define IRC_SERVER_NUM_OUTQUEUES_PRIO 3 /* flags for irc_server_sendf() */ #define IRC_SERVER_SEND_OUTQ_PRIO_IMMEDIATE (1 << 0) #define IRC_SERVER_SEND_OUTQ_PRIO_HIGH (1 << 1) #define IRC_SERVER_SEND_OUTQ_PRIO_LOW (1 << 2) #define IRC_SERVER_SEND_RETURN_LIST (1 << 3) #define IRC_SERVER_SEND_MULTILINE (1 << 4) /* version strings */ #define IRC_SERVER_VERSION_CAP "302" /* multiline default limits */ #define IRC_SERVER_MULTILINE_DEFAULT_MAX_BYTES 4096 #define IRC_SERVER_MULTILINE_DEFAULT_MAX_LINES 24 /* casemapping (string comparisons for nicks/channels) */ enum t_irc_server_casemapping { IRC_SERVER_CASEMAPPING_RFC1459 = 0, /* A-Z [ \ ] ^ ==> a-z { | } ~ */ IRC_SERVER_CASEMAPPING_STRICT_RFC1459, /* A-Z [ \ ] ==> a-z { | } */ IRC_SERVER_CASEMAPPING_ASCII, /* A-Z ==> a-z */ /* number of casemapping */ IRC_SERVER_NUM_CASEMAPPING, }; /* utf8mapping (string comparisons for nicks/channels) */ enum t_irc_server_utf8mapping { IRC_SERVER_UTF8MAPPING_NONE = 0, IRC_SERVER_UTF8MAPPING_RFC8265, /* number of utf8mapping */ IRC_SERVER_NUM_UTF8MAPPING, }; /* authentication method */ enum t_irc_server_auth_method { IRC_SERVER_AUTH_METHOD_NONE = 0, IRC_SERVER_AUTH_METHOD_SASL, IRC_SERVER_AUTH_METHOD_OTHER, }; /* output queue of messages to server (for sending slowly to server) */ struct t_irc_outqueue { char *command; /* IRC command */ char *message_before_mod; /* msg before any modifier */ char *message_after_mod; /* msg after modifier(s) */ int modified; /* msg was modified by modifier(s) */ char *tags; /* tags (used by Relay plugin) */ struct t_irc_redirect *redirect; /* command redirection */ struct t_irc_outqueue *next_outqueue; /* link to next msg in queue */ struct t_irc_outqueue *prev_outqueue; /* link to prev msg in queue */ }; struct t_irc_server { /* user choices */ char *name; /* internal name of server */ struct t_config_option *options[IRC_SERVER_NUM_OPTIONS]; /* internal vars */ int temp_server; /* temporary server (not saved) */ int fake_server; /* fake server (no I/O, for tests) */ int reloading_from_config; /* 1 if reloading from config file */ int reloaded_from_config; /* 1 if reloaded from config file */ char *addresses_eval; /* evaluation of addresses */ int addresses_count; /* number of addresses */ char **addresses_array; /* addresses (after split) */ int *ports_array; /* ports for addresses */ int *retry_array; /* retry count per address */ int index_current_address; /* current address index in array */ char *current_address; /* current address */ char *current_ip; /* current IP address */ int current_port; /* current port */ int current_retry; /* current retry count (increment if a */ /* connected server fails in any way) */ int sock; /* socket for server */ struct t_hook *hook_connect; /* connection hook */ struct t_hook *hook_fd; /* hook for server socket */ struct t_hook *hook_timer_connection; /* timer for connection */ struct t_hook *hook_timer_sasl; /* timer for SASL authentication */ char *sasl_scram_client_first; /* first message sent for SASL SCRAM */ char *sasl_scram_salted_pwd; /* salted password for SASL SCRAM */ int sasl_scram_salted_pwd_size; /* size of salted password for SASL SCRAM*/ char *sasl_scram_auth_message; /* auth message for SASL SCRAM */ char *sasl_temp_username; /* temp SASL username (set by /auth cmd) */ char *sasl_temp_password; /* temp SASL password (set by /auth cmd) */ int authentication_method; /* authentication method used to login */ int sasl_mechanism_used; /* SASL method used at login time */ int is_connected; /* 1 if WeeChat is connected to server */ int tls_connected; /* = 1 if connected with TLS */ int disconnected; /* 1 if server has been disconnected */ gnutls_session_t gnutls_sess; /* gnutls session (only if TLS is used) */ gnutls_x509_crt_t tls_cert; /* certificate used if tls_cert is set */ gnutls_x509_privkey_t tls_cert_key; /* key used if tls_cert is set */ char *unterminated_message; /* beginning of a message in input buf */ int nicks_count; /* number of nicknames */ char **nicks_array; /* nicknames (after split) */ int nick_first_tried; /* first nick tried in list of nicks */ /* when (re-)connecting to server */ int nick_alternate_number; /* number used to build alternate nicks */ /* (nick____1, nick____2, ...) */ char *nick; /* current nickname */ char *nick_modes; /* nick modes */ char *host; /* self host (set if known) */ int checking_cap_ls; /* 1 if checking supported capabilities */ struct t_hashtable *cap_ls; /* list of supported capabilities */ int checking_cap_list; /* 1 if checking enabled capabilities */ struct t_hashtable *cap_list; /* list of enabled capabilities */ int multiline_max_bytes; /* max bytes for multiline batch */ int multiline_max_lines; /* max lines for multiline batch */ char *isupport; /* copy of message 005 (ISUPPORT) */ char *prefix_modes; /* prefix modes from msg 005 (eg "ohv") */ char *prefix_chars; /* prefix chars from msg 005 (eg "@%+") */ int msg_max_length; /* max length of msg (from msg 005) */ int nick_max_length; /* max length of nick (from msg 005) */ int user_max_length; /* max length of user (from msg 005) */ int host_max_length; /* max length of host (from msg 005) */ int casemapping; /* casemapping from msg 005 */ int utf8mapping; /* utf8mapping from msg 005 */ int utf8only; /* UTF-8 only? */ char *chantypes; /* chantypes from msg 005 (eg "&#") */ char *chanmodes; /* chanmodes from msg 005 */ /* (eg "beI,k,l,imnpstaqr") */ int monitor; /* monitor limit from msg 005 (eg 100) */ time_t monitor_time; /* time for monitoring nicks (on connect)*/ char *clienttagdeny; /* list of blocked client-only tags */ int clienttagdeny_count; /* number of masks in clienttagdeny */ char **clienttagdeny_array; /* masks expanded from clienttagdeny */ int typing_allowed; /* typing not excluded by clienttagdeny? */ int reconnect_delay; /* current reconnect delay (growing) */ time_t reconnect_start; /* this time + delay = reconnect time */ time_t command_time; /* this time + command_delay = time to */ /* autojoin channels */ int autojoin_done; /* 1 if autojoin has been done */ int disable_autojoin; /* 1 if user asked to not autojoin chans */ int is_away; /* 1 is user is marked as away */ char *away_message; /* away message, NULL if not away */ time_t away_time; /* time() when user marking as away */ int lag; /* lag (in milliseconds) */ int lag_displayed; /* last value displayed for lag */ struct timeval lag_check_time; /* last time lag was checked (ping sent) */ time_t lag_next_check; /* time for next check */ time_t lag_last_refresh; /* last refresh of lag item */ regex_t *cmd_list_regexp; /* compiled Regular Expression for /list */ struct t_irc_list *list; /* /list buffer management */ time_t last_user_message; /* time of last user message (anti flood)*/ time_t last_away_check; /* time of last away check on server */ time_t last_data_purge; /* time of last purge (some hashtables) */ struct t_irc_outqueue *outqueue[IRC_SERVER_NUM_OUTQUEUES_PRIO]; /* queue for outgoing messages */ /* with 2 priorities (high/low) */ struct t_irc_outqueue *last_outqueue[IRC_SERVER_NUM_OUTQUEUES_PRIO]; /* last outgoing message */ struct t_irc_redirect *redirects; /* command redirections */ struct t_irc_redirect *last_redirect; /* last command redirection */ struct t_irc_notify *notify_list; /* list of notify */ struct t_irc_notify *last_notify; /* last notify */ int notify_count; /* number of notify in list */ struct t_hashtable *join_manual; /* manual joins pending */ struct t_hashtable *join_channel_key; /* keys pending for joins */ struct t_hashtable *join_noswitch; /* joins w/o switch to buffer */ struct t_hashtable *echo_msg_recv; /* msg received with echo-message */ struct t_hashtable *names_channel_filter; /* filter for /names on channel*/ struct t_irc_batch *batches; /* batched events (cap "batch") */ struct t_irc_batch *last_batch; /* last batch */ struct t_gui_buffer *buffer; /* GUI buffer allocated for server */ char *buffer_as_string; /* used to return buffer info */ struct t_irc_channel *channels; /* opened channels on server */ struct t_irc_channel *last_channel; /* last opened channel on server */ struct t_irc_server *prev_server; /* link to previous server */ struct t_irc_server *next_server; /* link to next server */ }; /* IRC messages */ struct t_irc_message { struct t_irc_server *server; /* server pointer for received msg */ char *data; /* message content */ struct t_irc_message *next_message; /* link to next message */ }; /* digest algorithms for fingerprint */ enum t_irc_fingerprint_digest_algo { IRC_FINGERPRINT_ALGO_SHA1 = 0, IRC_FINGERPRINT_ALGO_SHA256, IRC_FINGERPRINT_ALGO_SHA512, /* number of digest algorithms */ IRC_FINGERPRINT_NUM_ALGOS, }; extern int irc_server_casemapping_range[]; extern char *irc_server_prefix_modes_default; extern char *irc_server_prefix_chars_default; extern char *irc_server_chanmodes_default; extern struct t_irc_server *irc_servers; extern const int gnutls_cert_type_prio[]; extern const int gnutls_prot_prio[]; extern struct t_irc_message *irc_recv_msgq, *irc_msgq_last_msg; extern char *irc_server_sasl_fail_string[]; extern char *irc_server_options[][2]; extern int irc_server_valid (struct t_irc_server *server); extern struct t_irc_server *irc_server_search (const char *server_name); extern int irc_server_search_option (const char *option_name); extern int irc_server_search_casemapping (const char *casemapping); extern int irc_server_search_utf8mapping (const char *utf8mapping); extern int irc_server_strcasecmp (struct t_irc_server *server, const char *string1, const char *string2); extern int irc_server_strncasecmp (struct t_irc_server *server, const char *string1, const char *string2, int max); extern char *irc_server_eval_expression (struct t_irc_server *server, const char *string); extern void irc_server_sasl_get_creds (struct t_irc_server *server, char **username, char **password, char **key); extern int irc_server_sasl_enabled (struct t_irc_server *server); extern char *irc_server_get_name_without_port (const char *name); extern char *irc_server_get_short_description (struct t_irc_server *server); extern int irc_server_set_addresses (struct t_irc_server *server, const char *addresses, int tls); extern void irc_server_set_nicks (struct t_irc_server *server, const char *nicks); extern void irc_server_set_nick (struct t_irc_server *server, const char *nick); extern void irc_server_set_host (struct t_irc_server *server, const char *host); extern const char *irc_server_get_alternate_nick (struct t_irc_server *server); extern const char *irc_server_get_isupport_value (struct t_irc_server *server, const char *feature); extern const char *irc_server_get_chantypes (struct t_irc_server *server); extern void irc_server_set_prefix_modes_chars (struct t_irc_server *server, const char *prefix); extern void irc_server_set_clienttagdeny (struct t_irc_server *server, const char *clienttagdeny); extern void irc_server_set_lag (struct t_irc_server *server); extern void irc_server_set_tls_version (struct t_irc_server *server); extern const char *irc_server_get_prefix_modes (struct t_irc_server *server); extern const char *irc_server_get_prefix_chars (struct t_irc_server *server); extern int irc_server_get_prefix_mode_index (struct t_irc_server *server, char mode); extern int irc_server_get_prefix_char_index (struct t_irc_server *server, char prefix_char); extern char irc_server_get_prefix_mode_for_char (struct t_irc_server *server, char prefix_char); extern char irc_server_get_prefix_char_for_mode (struct t_irc_server *server, char mode); extern const char *irc_server_get_chanmodes (struct t_irc_server *server); extern int irc_server_prefix_char_statusmsg (struct t_irc_server *server, char prefix_char); extern int irc_server_get_max_modes (struct t_irc_server *server); extern char *irc_server_get_default_msg (const char *default_msg, struct t_irc_server *server, const char *channel_name, const char *target_nick); extern void irc_server_buffer_set_input_multiline (struct t_irc_server *server, int multiline); extern int irc_server_has_channels (struct t_irc_server *server); extern struct t_irc_server *irc_server_alloc (const char *name); extern struct t_irc_server *irc_server_alloc_with_url (const char *irc_url); extern void irc_server_apply_command_line_options (struct t_irc_server *server, int argc, char **argv); extern void irc_server_free_all (); extern struct t_irc_server *irc_server_copy (struct t_irc_server *server, const char *new_name); extern int irc_server_rename (struct t_irc_server *server, const char *new_name); extern int irc_server_reorder (const char **servers, int num_servers); extern int irc_server_send_signal (struct t_irc_server *server, const char *signal, const char *command, const char *full_message, const char *tags); extern void irc_server_set_send_default_tags (const char *tags); extern struct t_arraylist *irc_server_sendf (struct t_irc_server *server, int flags, const char *tags, const char *format, ...); extern void irc_server_msgq_add_buffer (struct t_irc_server *server, const char *buffer); extern void irc_server_msgq_flush (); extern void irc_server_set_buffer_title (struct t_irc_server *server); extern struct t_gui_buffer *irc_server_create_buffer (struct t_irc_server *server); char *irc_server_fingerprint_str_sizes (); extern int irc_server_connect (struct t_irc_server *server); extern void irc_server_auto_connect (int auto_connect); extern void irc_server_autojoin_channels (struct t_irc_server *server); extern int irc_server_recv_cb (const void *pointer, void *data, int fd); extern int irc_server_timer_sasl_cb (const void *pointer, void *data, int remaining_calls); extern int irc_server_timer_cb (const void *pointer, void *data, int remaining_calls); extern void irc_server_outqueue_free_all (struct t_irc_server *server, int priority); extern int irc_server_get_channel_count (struct t_irc_server *server); extern int irc_server_get_pv_count (struct t_irc_server *server); extern void irc_server_set_away (struct t_irc_server *server, const char *nick, int is_away); extern void irc_server_remove_away (struct t_irc_server *server); extern void irc_server_check_away (struct t_irc_server *server); extern void irc_server_switch_address (struct t_irc_server *server, int connection); extern void irc_server_disconnect (struct t_irc_server *server, int switch_address, int reconnect); extern void irc_server_disconnect_all (); extern void irc_server_free_sasl_data (struct t_irc_server *server); extern void irc_server_free (struct t_irc_server *server); extern int irc_server_xfer_send_ready_cb (const void *pointer, void *data, const char *signal, const char *type_data, void *signal_data); extern int irc_server_xfer_resume_ready_cb (const void *pointer, void *data, const char *signal, const char *type_data, void *signal_data); extern int irc_server_xfer_send_accept_resume_cb (const void *pointer, void *data, const char *signal, const char *type_data, void *signal_data); extern struct t_hdata *irc_server_hdata_server_cb (const void *pointer, void *data, const char *hdata_name); extern int irc_server_add_to_infolist (struct t_infolist *infolist, struct t_irc_server *server, int force_disconnected_state); extern void irc_server_print_log (); #endif /* WEECHAT_PLUGIN_IRC_SERVER_H */