path: root/src/xmpp/stanza.h

/*
 * stanza.h
 *
 * Copyright (C) 2012 - 2019 James Booth <boothj5@gmail.com>
 * Copyright (C) 2019 - 2021 Michael Vetter <jubalh@iodoru.org>
 *
 * This file is part of Profanity.
 *
 * Profanity 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.
 *
 * Profanity 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 Profanity.  If not, see <https://www.gnu.org/licenses/>.
 *
 * In addition, as a special exception, the copyright holders give permission to
 * link the code of portions of this program with the OpenSSL library under
 * certain conditions as described in each individual source file, and
 * distribute linked combinations including the two.
 *
 * You must obey the GNU General Public License in all respects for all of the
 * code used other than OpenSSL. If you modify file(s) with this exception, you
 * may extend this exception to your version of the file(s), but you are not
 * obligated to do so. If you do not wish to do so, delete this exception
 * statement from your version. If you delete this exception statement from all
 * source files in the program, then also delete it here.
 *
 */

#ifndef XMPP_STANZA_H
#define XMPP_STANZA_H

#include "config.h"

#ifdef HAVE_LIBMESODE
#include <mesode.h>
#endif

#ifdef HAVE_LIBSTROPHE
#include <strophe.h>
#endif

#include <xmpp/xmpp.h>

#define STANZA_NAME_ACTIVE    "active"
#define STANZA_NAME_INACTIVE  "inactive"
#define STANZA_NAME_COMPOSING "composing"
#define STANZA_NAME_PAUSED    "paused"
#define STANZA_NAME_GONE      "gone"

#define STANZA_NAME_MESSAGE   "message"
#define STANZA_NAME_BODY      "body"
#define STANZA_NAME_BLOCK     "block"
#define STANZA_NAME_UNBLOCK   "unblock"
#define STANZA_NAME_BLOCKLIST "blocklist"
#define STANZA_NAME_PRESENCE  "presence"
#define STANZA_NAME_PRIORITY  "priority"
#define STANZA_NAME_X         "x"
// XEP-0373: OpenPGP for XMPP
#define STANZA_NAME_OPENPGP          "openpgp"
#define STANZA_NAME_PUPKEY           "pubkey"
#define STANZA_NAME_PUBLIC_KEYS_LIST "public-keys-list"
#define STANZA_NAME_PUBKEY_METADATA  "pubkey-metadata"
#define STANZA_NAME_DATA             "data"
#define STANZA_NAME_SHOW             "show"
#define STANZA_NAME_STATUS           "status"
#define STANZA_NAME_IQ               "iq"
#define STANZA_NAME_QUERY            "query"
#define STANZA_NAME_REQUEST          "request"
#define STANZA_NAME_DELAY            "delay"
#define STANZA_NAME_ERROR            "error"
#define STANZA_NAME_PING             "ping"
#define STANZA_NAME_TEXT             "text"
#define STANZA_NAME_SUBJECT          "subject"
#define STANZA_NAME_ITEM             "item"
#define STANZA_NAME_ITEMS            "items"
#define STANZA_NAME_C                "c"
#define STANZA_NAME_IDENTITY         "identity"
#define STANZA_NAME_FEATURE          "feature"
#define STANZA_NAME_INVITE           "invite"
#define STANZA_NAME_REASON           "reason"
#define STANZA_NAME_GROUP            "group"
#define STANZA_NAME_PUBSUB           "pubsub"
#define STANZA_NAME_PUBLISH          "publish"
#define STANZA_NAME_PUBLISH_OPTIONS  "publish-options"
#define STANZA_NAME_SUBSCRIBE        "subscribe"
#define STANZA_NAME_FIELD            "field"
#define STANZA_NAME_STORAGE          "storage"
#define STANZA_NAME_NICK             "nick"
#define STANZA_NAME_PASSWORD         "password"
#define STANZA_NAME_CONFERENCE       "conference"
#define STANZA_NAME_VALUE            "value"
#define STANZA_NAME_DESTROY          "destroy"
#define STANZA_NAME_ACTOR            "actor"
#define STANZA_NAME_ENABLE           "enable"
#define STANZA_NAME_DISABLE          "disable"
#define STANZA_NAME_FILENAME         "filename"
#define STANZA_NAME_SIZE             "size"
#define STANZA_NAME_CONTENT_TYPE     "content-type"
#define STANZA_NAME_SLOT             "slot"
#define STANZA_NAME_PUT              "put"
#define STANZA_NAME_GET              "get"
#define STANZA_NAME_HEADER           "header"
#define STANZA_HEADER_AUTHORIZATION  "Authorization"
#define STANZA_HEADER_COOKIE         "Cookie"
#define STANZA_HEADER_EXPIRES        "Expires"
#define STANZA_NAME_URL              "url"
#define STANZA_NAME_COMMAND          "command"
#define STANZA_NAME_CONFIGURE        "configure"
#define STANZA_NAME_ORIGIN_ID        "origin-id"
#define STANZA_NAME_STANZA_ID        "stanza-id"
#define STANZA_NAME_RESULT           "result"
#define STANZA_NAME_MINIMIZE         "minimize"
#define STANZA_NAME_FIN              "fin"
#define STANZA_NAME_LAST             "last"
#define STANZA_NAME_AFTER            "after"
#define STANZA_NAME_USERNAME         "username"
#define STANZA_NAME_PROPOSE          "propose"
#define STANZA_NAME_REPORT           "report"

// error conditions
#define STANZA_NAME_BAD_REQUEST             "bad-request"
#define STANZA_NAME_CONFLICT                "conflict"
#define STANZA_NAME_FEATURE_NOT_IMPLEMENTED "feature-not-implemented"
#define STANZA_NAME_FORBIDDEN               "forbidden"
#define STANZA_NAME_GONE                    "gone"
#define STANZA_NAME_INTERNAL_SERVER_ERROR   "internal-server-error"
#define STANZA_NAME_ITEM_NOT_FOUND          "item-not-found"
#define STANZA_NAME_JID_MALFORMED           "jid-malformed"
#define STANZA_NAME_NOT_ACCEPTABLE          "not-acceptable"
#define STANZA_NAME_NOT_ALLOWED             "not-allowed"
#define STANZA_NAME_NOT_AUTHORISED          "not-authorised"
#define STANZA_NAME_POLICY_VIOLATION        "policy-violation"
#define STANZA_NAME_RECIPIENT_UNAVAILABLE   "recipient-unavailable"
#define STANZA_NAME_REDIRECT                "redirect"
#define STANZA_NAME_REGISTRATION_REQUIRED   "registration-required"
#define STANZA_NAME_REMOTE_SERVER_NOT_FOUND "remote-server-not-found"
#define STANZA_NAME_REMOTE_SERVER_TIMEOUT   "remote-server-timeout"
#define STANZA_NAME_RESOURCE_CONSTRAINT     "resource-constraint"
#define STANZA_NAME_SERVICE_UNAVAILABLE     "service-unavailable"
#define STANZA_NAME_SUBSCRIPTION_REQUIRED   "subscription-required"
#define STANZA_NAME_UNDEFINED_CONDITION     "undefined-condition"
#define STANZA_NAME_UNEXPECTED_REQUEST      "unexpected-request"

#define STANZA_TYPE_CHAT         "chat"
#define STANZA_TYPE_GROUPCHAT    "groupchat"
#define STANZA_TYPE_HEADLINE     "headline"
#define STANZA_TYPE_NORMAL       "normal"
#define STANZA_TYPE_UNAVAILABLE  "unavailable"
#define STANZA_TYPE_SUBSCRIBE    "subscribe"
#define STANZA_TYPE_SUBSCRIBED   "subscribed"
#define STANZA_TYPE_UNSUBSCRIBED "unsubscribed"
#define STANZA_TYPE_GET          "get"
#define STANZA_TYPE_SET          "set"
#define STANZA_TYPE_ERROR        "error"
#define STANZA_TYPE_RESULT       "result"
#define STANZA_TYPE_SUBMIT       "submit"
#define STANZA_TYPE_CANCEL       "cancel"
#define STANZA_TYPE_MODIFY       "modify"
#define STANZA_TYPE_LIST_MULTI   "list-multi"

#define STANZA_ATTR_TO             "to"
#define STANZA_ATTR_FROM           "from"
#define STANZA_ATTR_STAMP          "stamp"
#define STANZA_ATTR_TYPE           "type"
#define STANZA_ATTR_CODE           "code"
#define STANZA_ATTR_JID            "jid"
#define STANZA_ATTR_NAME           "name"
#define STANZA_ATTR_SUBSCRIPTION   "subscription"
#define STANZA_ATTR_XMLNS          "xmlns"
#define STANZA_ATTR_NICK           "nick"
#define STANZA_ATTR_ASK            "ask"
#define STANZA_ATTR_ID             "id"
#define STANZA_ATTR_SECONDS        "seconds"
#define STANZA_ATTR_NODE           "node"
#define STANZA_ATTR_VER            "ver"
#define STANZA_ATTR_VAR            "var"
#define STANZA_ATTR_HASH           "hash"
#define STANZA_ATTR_CATEGORY       "category"
#define STANZA_ATTR_REASON         "reason"
#define STANZA_ATTR_AUTOJOIN       "autojoin"
#define STANZA_ATTR_PASSWORD       "password"
#define STANZA_ATTR_STATUS         "status"
#define STANZA_ATTR_DATE           "date"
#define STANZA_ATTR_V4_FINGERPRINT "v4-fingerprint"
#define STANZA_ATTR_FILENAME       "filename"
#define STANZA_ATTR_SIZE           "size"
#define STANZA_ATTR_CONTENTTYPE    "content-type"
#define STANZA_ATTR_LABEL          "label"

#define STANZA_TEXT_AWAY   "away"
#define STANZA_TEXT_DND    "dnd"
#define STANZA_TEXT_CHAT   "chat"
#define STANZA_TEXT_XA     "xa"
#define STANZA_TEXT_ONLINE "online"

#define STANZA_NS_STANZAS      "urn:ietf:params:xml:ns:xmpp-stanzas"
#define STANZA_NS_CHATSTATES   "http://jabber.org/protocol/chatstates"
#define STANZA_NS_MUC          "http://jabber.org/protocol/muc"
#define STANZA_NS_MUC_USER     "http://jabber.org/protocol/muc#user"
#define STANZA_NS_MUC_OWNER    "http://jabber.org/protocol/muc#owner"
#define STANZA_NS_MUC_ADMIN    "http://jabber.org/protocol/muc#admin"
#define STANZA_NS_CAPS         "http://jabber.org/protocol/caps"
#define STANZA_NS_PING         "urn:xmpp:ping"
#define STANZA_NS_LASTACTIVITY "jabber:iq:last"
#define STANZA_NS_DATA         "jabber:x:data"
#define STANZA_NS_VERSION      "jabber:iq:version"
#define STANZA_NS_CONFERENCE   "jabber:x:conference"
#define STANZA_NS_CAPTCHA      "urn:xmpp:captcha"
#define STANZA_NS_PUBSUB       "http://jabber.org/protocol/pubsub"
#define STANZA_NS_PUBSUB_OWNER "http://jabber.org/protocol/pubsub#owner"
#define STANZA_NS_PUBSUB_EVENT "http://jabber.org/protocol/pubsub#event"
#define STANZA_NS_CARBONS      "urn:xmpp:carbons:2"
#define STANZA_NS_HINTS        "urn:xmpp:hints"
#define STANZA_NS_FORWARD      "urn:xmpp:forward:0"
#define STANZA_NS_RECEIPTS     "urn:xmpp:receipts"
#define STANZA_NS_SIGNED       "jabber:x:signed"
#define STANZA_NS_ENCRYPTED    "jabber:x:encrypted"
// XEP-0373: OpenPGP for XMPP
#define STANZA_NS_OPENPGP_0               "urn:xmpp:openpgp:0"
#define STANZA_NS_OPENPGP_0_PUBLIC_KEYS   "urn:xmpp:openpgp:0:public-keys"
#define STANZA_NS_HTTP_UPLOAD             "urn:xmpp:http:upload:0"
#define STANZA_NS_X_OOB                   "jabber:x:oob"
#define STANZA_NS_BLOCKING                "urn:xmpp:blocking"
#define STANZA_NS_COMMAND                 "http://jabber.org/protocol/commands"
#define STANZA_NS_OMEMO                   "eu.siacs.conversations.axolotl"
#define STANZA_NS_OMEMO_DEVICELIST        "eu.siacs.conversations.axolotl.devicelist"
#define STANZA_NS_OMEMO_BUNDLES           "eu.siacs.conversations.axolotl.bundles"
#define STANZA_NS_STABLE_ID               "urn:xmpp:sid:0"
#define STANZA_NS_USER_AVATAR_DATA        "urn:xmpp:avatar:data"
#define STANZA_NS_USER_AVATAR_METADATA    "urn:xmpp:avatar:metadata"
#define STANZA_NS_LAST_MESSAGE_CORRECTION "urn:xmpp:message-correct:0"
#define STANZA_NS_MAM2                    "urn:xmpp:mam:2"
#define STANZA_NS_EXT_GAJIM_BOOKMARKS     "xmpp:gajim.org/bookmarks"
#define STANZA_NS_RSM                     "http://jabber.org/protocol/rsm"
#define STANZA_NS_REGISTER                "jabber:iq:register"
#define STANZA_NS_VOICEREQUEST            "http://jabber.org/protocol/muc#request"
#define STANZA_NS_JINGLE_MESSAGE          "urn:xmpp:jingle-message:0"
#define STANZA_NS_JINGLE_RTP              "urn:xmpp:jingle:apps:rtp:1"
#define STANZA_NS_REPORTING               "urn:xmpp:reporting:1"

#define STANZA_DATAFORM_SOFTWARE "urn:xmpp:dataforms:softwareinfo"

#define STANZA_REPORTING_ABUSE "urn:xmpp:reporting:abuse"
#define STANZA_REPORTING_SPAM  "urn:xmpp:reporting:spam"

typedef struct caps_stanza_t
{
    char* hash;
    char* node;
    char* ver;
} XMPPCaps;

typedef struct presence_stanza_t
{
    Jid* jid;
    char* show;
    char* status;
    int priority;
    GDateTime* last_activity;
} XMPPPresence;

typedef enum {
    STANZA_PARSE_ERROR_NO_FROM,
    STANZA_PARSE_ERROR_INVALID_FROM
} stanza_parse_error_t;

xmpp_stanza_t* stanza_create_bookmarks_storage_request(xmpp_ctx_t* ctx);

xmpp_stanza_t* stanza_create_blocked_list_request(xmpp_ctx_t* ctx);

xmpp_stanza_t* stanza_create_http_upload_request(xmpp_ctx_t* ctx, const char* const id, const char* const jid, HTTPUpload* upload);

xmpp_stanza_t* stanza_enable_carbons(xmpp_ctx_t* ctx);

xmpp_stanza_t* stanza_disable_carbons(xmpp_ctx_t* ctx);

xmpp_stanza_t* stanza_create_chat_state(xmpp_ctx_t* ctx,
                                        const char* const fulljid, const char* const state);

xmpp_stanza_t* stanza_attach_state(xmpp_ctx_t* ctx, xmpp_stanza_t* stanza, const char* const state);
xmpp_stanza_t* stanza_attach_carbons_private(xmpp_ctx_t* ctx, xmpp_stanza_t* stanza);
xmpp_stanza_t* stanza_attach_hints_no_copy(xmpp_ctx_t* ctx, xmpp_stanza_t* stanza);
xmpp_stanza_t* stanza_attach_hints_no_store(xmpp_ctx_t* ctx, xmpp_stanza_t* stanza);
xmpp_stanza_t* stanza_attach_hints_store(xmpp_ctx_t* ctx, xmpp_stanza_t* stanza);
xmpp_stanza_t* stanza_attach_receipt_request(xmpp_ctx_t* ctx, xmpp_stanza_t* stanza);
xmpp_stanza_t* stanza_attach_x_oob_url(xmpp_ctx_t* ctx, xmpp_stanza_t* stanza, const char* const url);
xmpp_stanza_t* stanza_attach_origin_id(xmpp_ctx_t* ctx, xmpp_stanza_t* stanza, const char* const id);
xmpp_stanza_t* stanza_attach_correction(xmpp_ctx_t* ctx, xmpp_stanza_t* stanza, const char* const replace_id);

xmpp_stanza_t* stanza_create_room_join_presence(xmpp_ctx_t* const ctx,
                                                const char* const full_room_jid, const char* const passwd);

xmpp_stanza_t* stanza_create_room_newnick_presence(xmpp_ctx_t* ctx,
                                                   const char* const full_room_jid);

xmpp_stanza_t* stanza_create_room_leave_presence(xmpp_ctx_t* ctx,
                                                 const char* const room, const char* const nick);

xmpp_stanza_t* stanza_create_roster_iq(xmpp_ctx_t* ctx);
xmpp_stanza_t* stanza_create_ping_iq(xmpp_ctx_t* ctx, const char* const target);
xmpp_stanza_t* stanza_create_disco_info_iq(xmpp_ctx_t* ctx, const char* const id,
                                           const char* const to, const char* const node);

xmpp_stanza_t* stanza_create_last_activity_iq(xmpp_ctx_t* ctx, const char* const id,
                                              const char* const to);

xmpp_stanza_t* stanza_create_invite(xmpp_ctx_t* ctx, const char* const room,
                                    const char* const contact, const char* const reason, const char* const password);
xmpp_stanza_t* stanza_create_mediated_invite(xmpp_ctx_t* ctx, const char* const room,
                                             const char* const contact, const char* const reason);

gboolean stanza_contains_chat_state(xmpp_stanza_t* stanza);

GDateTime* stanza_get_delay(xmpp_stanza_t* const stanza);
GDateTime* stanza_get_delay_from(xmpp_stanza_t* const stanza, gchar* from);
GDateTime* stanza_get_oldest_delay(xmpp_stanza_t* const stanza);

gboolean stanza_is_muc_presence(xmpp_stanza_t* const stanza);
gboolean stanza_is_muc_self_presence(xmpp_stanza_t* const stanza,
                                     const char* const self_jid);
gboolean stanza_is_room_nick_change(xmpp_stanza_t* const stanza);
gboolean stanza_muc_requires_config(xmpp_stanza_t* const stanza);

const char* stanza_get_new_nick(xmpp_stanza_t* const stanza);
xmpp_stanza_t* stanza_create_instant_room_request_iq(xmpp_ctx_t* ctx, const char* const room_jid);
xmpp_stanza_t* stanza_create_instant_room_destroy_iq(xmpp_ctx_t* ctx, const char* const room_jid);
xmpp_stanza_t* stanza_create_room_config_request_iq(xmpp_ctx_t* ctx, const char* const room_jid);
xmpp_stanza_t* stanza_create_room_config_cancel_iq(xmpp_ctx_t* ctx, const char* const room_jid);
xmpp_stanza_t* stanza_create_room_config_submit_iq(xmpp_ctx_t* ctx, const char* const room, DataForm* form);
xmpp_stanza_t* stanza_create_room_affiliation_list_iq(xmpp_ctx_t* ctx, const char* const room,
                                                      const char* const affiliation);
xmpp_stanza_t* stanza_create_room_affiliation_set_iq(xmpp_ctx_t* ctx, const char* const room, const char* const jid,
                                                     const char* const affiliation, const char* const reason);
xmpp_stanza_t* stanza_create_room_role_set_iq(xmpp_ctx_t* const ctx, const char* const room, const char* const jid,
                                              const char* const role, const char* const reason);
xmpp_stanza_t* stanza_create_room_role_list_iq(xmpp_ctx_t* ctx, const char* const room, const char* const role);

xmpp_stanza_t* stanza_create_room_subject_message(xmpp_ctx_t* ctx, const char* const room, const char* const subject);
xmpp_stanza_t* stanza_create_room_kick_iq(xmpp_ctx_t* const ctx, const char* const room, const char* const nick,
                                          const char* const reason);

xmpp_stanza_t* stanza_create_command_exec_iq(xmpp_ctx_t* ctx, const char* const target, const char* const node);
xmpp_stanza_t* stanza_create_command_config_submit_iq(xmpp_ctx_t* ctx, const char* const room, const char* const node, const char* const sessionid, DataForm* form);

void stanza_attach_publish_options_va(xmpp_ctx_t* const ctx, xmpp_stanza_t* const iq, int count, ...);
void stanza_attach_publish_options(xmpp_ctx_t* const ctx, xmpp_stanza_t* const iq, const char* const option, const char* const value);

xmpp_stanza_t* stanza_create_omemo_devicelist_request(xmpp_ctx_t* ctx, const char* const id, const char* const jid);
xmpp_stanza_t* stanza_create_omemo_devicelist_subscribe(xmpp_ctx_t* ctx, const char* const jid);
xmpp_stanza_t* stanza_create_omemo_devicelist_publish(xmpp_ctx_t* ctx, GList* const ids);
xmpp_stanza_t* stanza_create_omemo_bundle_publish(xmpp_ctx_t* ctx, const char* const id, uint32_t device_id, const unsigned char* const identity_key, size_t identity_key_length, const unsigned char* const signed_prekey, size_t signed_prekey_length, const unsigned char* const signed_prekey_signature, size_t signed_prekey_signature_length, GList* const prekeys, GList* const prekeys_id, GList* const prekeys_length);
xmpp_stanza_t* stanza_create_omemo_bundle_request(xmpp_ctx_t* ctx, const char* const id, const char* const jid, uint32_t device_id);

xmpp_stanza_t* stanza_create_pubsub_configure_request(xmpp_ctx_t* ctx, const char* const id, const char* const jid, const char* const node);
xmpp_stanza_t* stanza_create_pubsub_configure_submit(xmpp_ctx_t* ctx, const char* const id, const char* const jid, const char* const node, DataForm* form);

int stanza_get_idle_time(xmpp_stanza_t* const stanza);

void stanza_attach_priority(xmpp_ctx_t* const ctx, xmpp_stanza_t* const presence, const int pri);
void stanza_attach_last_activity(xmpp_ctx_t* const ctx, xmpp_stanza_t* const presence, const int idle);
void stanza_attach_caps(xmpp_ctx_t* const ctx, xmpp_stanza_t* const presence);
void stanza_attach_show(xmpp_ctx_t* const ctx, xmpp_stanza_t* const presence, const char* const show);
void stanza_attach_status(xmpp_ctx_t* const ctx, xmpp_stanza_t* const presence, const char* const status);

xmpp_stanza_t* stanza_create_caps_query_element(xmpp_ctx_t* ctx);
char* stanza_create_caps_sha1_from_query(xmpp_stanza_t* const query);
EntityCapabilities* stanza_create_caps_from_query_element(xmpp_stanza_t* query);

const char* stanza_get_presence_string_from_type(resource_presence_t presence_type);
xmpp_stanza_t* stanza_create_software_version_iq(xmpp_ctx_t* ctx, const char* const fulljid);
xmpp_stanza_t* stanza_create_disco_items_iq(xmpp_ctx_t* ctx, const char* const id, const char* const jid, const char* const node);

char* stanza_get_status(xmpp_stanza_t* stanza, char* def);
char* stanza_get_show(xmpp_stanza_t* stanza, char* def);

xmpp_stanza_t* stanza_create_roster_set(xmpp_ctx_t* ctx, const char* const id, const char* const jid,
                                        const char* const handle, GSList* groups);
xmpp_stanza_t* stanza_create_roster_remove_set(xmpp_ctx_t* ctx, const char* const barejid);

char* stanza_get_error_message(xmpp_stanza_t* const stanza);

GSList* stanza_get_status_codes_by_ns(xmpp_stanza_t* const stanza, char* ns);
gboolean stanza_room_destroyed(xmpp_stanza_t* stanza);
const char* stanza_get_muc_destroy_alternative_room(xmpp_stanza_t* stanza);
char* stanza_get_muc_destroy_alternative_password(xmpp_stanza_t* stanza);
char* stanza_get_muc_destroy_reason(xmpp_stanza_t* stanza);
const char* stanza_get_actor(xmpp_stanza_t* stanza);
char* stanza_get_reason(xmpp_stanza_t* stanza);

GHashTable* stanza_get_service_contact_addresses(xmpp_ctx_t* ctx, xmpp_stanza_t* stanza);

Resource* stanza_resource_from_presence(XMPPPresence* presence);
XMPPPresence* stanza_parse_presence(xmpp_stanza_t* stanza, int* err);
void stanza_free_presence(XMPPPresence* presence);

char* stanza_text_strdup(xmpp_stanza_t* stanza);

XMPPCaps* stanza_parse_caps(xmpp_stanza_t* const stanza);
void stanza_free_caps(XMPPCaps* caps);

xmpp_stanza_t* stanza_create_avatar_retrieve_data_request(xmpp_ctx_t* ctx, const char* stanza_id, const char* const item_id, const char* const jid);
xmpp_stanza_t* stanza_create_mam_iq(xmpp_ctx_t* ctx, const char* const jid, const char* const startdate, const char* const lastid);
xmpp_stanza_t* stanza_change_password(xmpp_ctx_t* ctx, const char* const user, const char* const password);
xmpp_stanza_t* stanza_request_voice(xmpp_ctx_t* ctx, const char* const room);
xmpp_stanza_t* stanza_create_approve_voice(xmpp_ctx_t* ctx, const char* const id, const char* const jid, const char* const node, DataForm* form);
xmpp_stanza_t* stanza_create_muc_register_nick(xmpp_ctx_t* ctx, const char* const id, const char* const jid, const char* const node, DataForm* form);

#endif