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c8b2979dcd
profanity/src/xmpp/message.c
Michael Vetter 449c7ce2ba ox: add helper message in case signcrypt doesnt work 
Most likely they didnt trust/sign the key. Which is described in the
profanity-ox-setup man page.
2022-06-29 13:26:15 +02:00

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/*
* message.c
* vim: expandtab:ts=4:sts=4:sw=4
*
* Copyright (C) 2012 - 2019 James Booth <boothj5@gmail.com>
* Copyright (C) 2019 - 2022 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.
*
*/
#include "config.h"
#include <stdlib.h>
#include <string.h>
#include <strophe.h>
#include "profanity.h"
#include "log.h"
#include "config/preferences.h"
#include "event/server_events.h"
#include "pgp/gpg.h"
#include "pgp/ox.h"
#include "plugins/plugins.h"
#include "ui/ui.h"
#include "ui/window_list.h"
#include "xmpp/chat_session.h"
#include "xmpp/muc.h"
#include "xmpp/session.h"
#include "xmpp/message.h"
#include "xmpp/roster.h"
#include "xmpp/roster_list.h"
#include "xmpp/stanza.h"
#include "xmpp/connection.h"
#include "xmpp/xmpp.h"
#include "xmpp/form.h"
#include "xmpp/iq.h"
#ifdef HAVE_OMEMO
#include "xmpp/omemo.h"
#include "omemo/omemo.h"
#endif
typedef struct p_message_handle_t
{
ProfMessageCallback func;
ProfMessageFreeCallback free_func;
void* userdata;
} ProfMessageHandler;
static int _message_handler(xmpp_conn_t* const conn, xmpp_stanza_t* const stanza, void* const userdata);
static void _handle_error(xmpp_stanza_t* const stanza);
static void _handle_groupchat(xmpp_stanza_t* const stanza);
static void _handle_muc_user(xmpp_stanza_t* const stanza);
static void _handle_muc_private_message(xmpp_stanza_t* const stanza);
static void _handle_conference(xmpp_stanza_t* const stanza);
static void _handle_captcha(xmpp_stanza_t* const stanza);
static void _handle_receipt_received(xmpp_stanza_t* const stanza);
static void _handle_chat(xmpp_stanza_t* const stanza, gboolean is_mam, gboolean is_carbon, const char* result_id, GDateTime* timestamp);
static void _handle_ox_chat(xmpp_stanza_t* const stanza, ProfMessage* message, gboolean is_mam);
static xmpp_stanza_t* _handle_carbons(xmpp_stanza_t* const stanza);
static void _send_message_stanza(xmpp_stanza_t* const stanza);
static gboolean _handle_mam(xmpp_stanza_t* const stanza);
static void _handle_pubsub(xmpp_stanza_t* const stanza, xmpp_stanza_t* const event);
static gboolean _handle_form(xmpp_stanza_t* const stanza);
static gboolean _handle_jingle_message(xmpp_stanza_t* const stanza);
static gboolean _should_ignore_based_on_silence(xmpp_stanza_t* const stanza);
#ifdef HAVE_LIBGPGME
static xmpp_stanza_t* _ox_openpgp_signcrypt(xmpp_ctx_t* ctx, const char* const to, const char* const text);
#endif // HAVE_LIBGPGME
static GHashTable* pubsub_event_handlers;
static gboolean
_handled_by_plugin(xmpp_stanza_t* const stanza)
{
char* text;
size_t text_size;
xmpp_stanza_to_text(stanza, &text, &text_size);
gboolean cont = plugins_on_message_stanza_receive(text);
xmpp_free(connection_get_ctx(), text);
return !cont;
}
static void
_handle_headline(xmpp_stanza_t* const stanza)
{
xmpp_stanza_t* body = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_BODY);
if (body) {
char* text = xmpp_stanza_get_text(body);
if (text) {
cons_show("Headline: %s", text);
xmpp_free(connection_get_ctx(), text);
}
}
}
static void
_handle_chat_states(xmpp_stanza_t* const stanza, Jid* const jid)
{
gboolean gone = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_GONE) != NULL;
gboolean typing = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_COMPOSING) != NULL;
gboolean paused = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_PAUSED) != NULL;
gboolean inactive = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_INACTIVE) != NULL;
if (gone) {
sv_ev_gone(jid->barejid, jid->resourcepart);
} else if (typing) {
sv_ev_typing(jid->barejid, jid->resourcepart);
} else if (paused) {
sv_ev_paused(jid->barejid, jid->resourcepart);
} else if (inactive) {
sv_ev_inactive(jid->barejid, jid->resourcepart);
} else if (stanza_contains_chat_state(stanza)) {
sv_ev_activity(jid->barejid, jid->resourcepart, TRUE);
} else {
sv_ev_activity(jid->barejid, jid->resourcepart, FALSE);
}
}
static int
_message_handler(xmpp_conn_t* const conn, xmpp_stanza_t* const stanza, void* const userdata)
{
log_debug("Message stanza handler fired");
if (_handled_by_plugin(stanza)) {
return 1;
}
// type according to RFC 6121
const char* type = xmpp_stanza_get_type(stanza);
if (type && g_strcmp0(type, STANZA_TYPE_ERROR) == 0) {
_handle_error(stanza);
} else if (type && g_strcmp0(type, STANZA_TYPE_GROUPCHAT) == 0) {
// XEP-0045: Multi-User Chat
_handle_groupchat(stanza);
} else if (type && g_strcmp0(type, STANZA_TYPE_HEADLINE) == 0) {
xmpp_stanza_t* event = xmpp_stanza_get_child_by_ns(stanza, STANZA_NS_PUBSUB_EVENT);
// TODO: do we want to handle all pubsub here or should additionally check for STANZA_NS_MOOD?
if (event) {
_handle_pubsub(stanza, event);
return 1;
} else {
_handle_headline(stanza);
}
} else if (type == NULL || g_strcmp0(type, STANZA_TYPE_CHAT) == 0 || g_strcmp0(type, STANZA_TYPE_NORMAL) == 0) {
// type: chat, normal (==NULL)
// ignore all messages from JIDs that are not in roster, if 'silence' is set
if (_should_ignore_based_on_silence(stanza)) {
return 1;
}
// XEP-0353: Jingle Message Initiation
if (_handle_jingle_message(stanza)) {
return 1;
}
// XEP-0045: Multi-User Chat 8.6 Voice Requests
if (_handle_form(stanza)) {
return 1;
}
// XEP-0313: Message Archive Management
if (_handle_mam(stanza)) {
return 1;
}
// XEP-0045: Multi-User Chat - invites - presence
xmpp_stanza_t* mucuser = xmpp_stanza_get_child_by_ns(stanza, STANZA_NS_MUC_USER);
if (mucuser) {
_handle_muc_user(stanza);
}
// XEP-0249: Direct MUC Invitations
xmpp_stanza_t* conference = xmpp_stanza_get_child_by_ns(stanza, STANZA_NS_CONFERENCE);
if (conference) {
_handle_conference(stanza);
return 1;
}
// XEP-0158: CAPTCHA Forms
xmpp_stanza_t* captcha = xmpp_stanza_get_child_by_ns(stanza, STANZA_NS_CAPTCHA);
if (captcha) {
_handle_captcha(stanza);
return 1;
}
// XEP-0184: Message Delivery Receipts
xmpp_stanza_t* receipts = xmpp_stanza_get_child_by_ns(stanza, STANZA_NS_RECEIPTS);
if (receipts) {
_handle_receipt_received(stanza);
}
// XEP-0060: Publish-Subscribe
xmpp_stanza_t* event = xmpp_stanza_get_child_by_ns(stanza, STANZA_NS_PUBSUB_EVENT);
if (event) {
_handle_pubsub(stanza, event);
return 1;
}
xmpp_stanza_t* msg_stanza = stanza;
gboolean is_carbon = FALSE;
// XEP-0280: Message Carbons
// Only allow `<sent xmlns='urn:xmpp:carbons:2'>` and `<received xmlns='urn:xmpp:carbons:2'>` carbons
// Thus ignoring `<private xmlns="urn:xmpp:carbons:2"/>`
xmpp_stanza_t* carbons = xmpp_stanza_get_child_by_name_and_ns(stanza, STANZA_NAME_SENT, STANZA_NS_CARBONS);
if (!carbons) {
carbons = xmpp_stanza_get_child_by_name_and_ns(stanza, STANZA_NAME_RECEIVED, STANZA_NS_CARBONS);
}
if (carbons) {
// carbon must come from ourselves
char* mybarejid = connection_get_barejid();
const char* const stanza_from = xmpp_stanza_get_from(stanza);
if (stanza_from) {
if (g_strcmp0(mybarejid, stanza_from) != 0) {
log_warning("Invalid carbon received, from: %s", stanza_from);
msg_stanza = NULL;
} else {
is_carbon = TRUE;
// returns NULL if it was a carbon that was invalid, so that we dont parse later
msg_stanza = _handle_carbons(carbons);
}
}
free(mybarejid);
}
if (msg_stanza) {
_handle_chat(msg_stanza, FALSE, is_carbon, NULL, NULL);
}
} else {
// none of the allowed types
char* text;
size_t text_size;
xmpp_stanza_to_text(stanza, &text, &text_size);
log_info("Received <message> with invalid 'type': %s", text);
xmpp_free(connection_get_ctx(), text);
}
return 1;
}
void
message_muc_submit_voice_approve(ProfConfWin* confwin)
{
xmpp_ctx_t* const ctx = connection_get_ctx();
xmpp_stanza_t* message = stanza_create_approve_voice(ctx, NULL, confwin->roomjid, NULL, confwin->form);
_send_message_stanza(message);
xmpp_stanza_release(message);
}
static gboolean
_handle_form(xmpp_stanza_t* const stanza)
{
xmpp_stanza_t* result = xmpp_stanza_get_child_by_name_and_ns(stanza, STANZA_NAME_X, STANZA_NS_DATA);
if (!result) {
return FALSE;
}
const char* const stanza_from = xmpp_stanza_get_from(stanza);
if (!stanza_from) {
return FALSE;
}
DataForm* form = form_create(result);
ProfConfWin* confwin = (ProfConfWin*)wins_new_config(stanza_from, form, message_muc_submit_voice_approve, NULL, NULL);
confwin_handle_configuration(confwin, form);
return TRUE;
}
void
message_handlers_init(void)
{
xmpp_conn_t* const conn = connection_get_conn();
xmpp_ctx_t* const ctx = connection_get_ctx();
xmpp_handler_add(conn, _message_handler, NULL, STANZA_NAME_MESSAGE, NULL, ctx);
if (pubsub_event_handlers) {
GList* keys = g_hash_table_get_keys(pubsub_event_handlers);
GList* curr = keys;
while (curr) {
ProfMessageHandler* handler = g_hash_table_lookup(pubsub_event_handlers, curr->data);
if (handler->free_func && handler->userdata) {
handler->free_func(handler->userdata);
}
curr = g_list_next(curr);
}
g_list_free(keys);
g_hash_table_destroy(pubsub_event_handlers);
}
pubsub_event_handlers = g_hash_table_new_full(g_str_hash, g_str_equal, free, free);
}
ProfMessage*
message_init(void)
{
ProfMessage* message = malloc(sizeof(ProfMessage));
message->from_jid = NULL;
message->to_jid = NULL;
message->id = NULL;
message->originid = NULL;
message->stanzaid = NULL;
message->replace_id = NULL;
message->body = NULL;
message->encrypted = NULL;
message->plain = NULL;
message->enc = PROF_MSG_ENC_NONE;
message->timestamp = NULL;
message->trusted = true;
message->type = PROF_MSG_TYPE_UNINITIALIZED;
return message;
}
void
message_free(ProfMessage* message)
{
xmpp_ctx_t* ctx = connection_get_ctx();
if (message->from_jid) {
jid_destroy(message->from_jid);
}
if (message->to_jid) {
jid_destroy(message->to_jid);
}
if (message->id) {
xmpp_free(ctx, message->id);
}
if (message->originid) {
xmpp_free(ctx, message->originid);
}
if (message->stanzaid) {
xmpp_free(ctx, message->stanzaid);
}
if (message->replace_id) {
xmpp_free(ctx, message->replace_id);
}
if (message->body) {
xmpp_free(ctx, message->body);
}
if (message->encrypted) {
xmpp_free(ctx, message->encrypted);
}
if (message->plain) {
free(message->plain);
}
if (message->timestamp) {
g_date_time_unref(message->timestamp);
}
free(message);
}
void
message_handlers_clear(void)
{
if (pubsub_event_handlers) {
g_hash_table_remove_all(pubsub_event_handlers);
}
}
void
message_pubsub_event_handler_add(const char* const node, ProfMessageCallback func, ProfMessageFreeCallback free_func, void* userdata)
{
ProfMessageHandler* handler = malloc(sizeof(ProfMessageHandler));
handler->func = func;
handler->free_func = free_func;
handler->userdata = userdata;
g_hash_table_insert(pubsub_event_handlers, strdup(node), handler);
}
char*
message_send_chat(const char* const barejid, const char* const msg, const char* const oob_url, gboolean request_receipt, const char* const replace_id)
{
xmpp_ctx_t* const ctx = connection_get_ctx();
char* state = chat_session_get_state(barejid);
char* jid = chat_session_get_jid(barejid);
char* id = connection_create_stanza_id();
xmpp_stanza_t* message = xmpp_message_new(ctx, STANZA_TYPE_CHAT, jid, id);
xmpp_message_set_body(message, msg);
free(jid);
if (state) {
stanza_attach_state(ctx, message, state);
}
if (oob_url) {
stanza_attach_x_oob_url(ctx, message, oob_url);
}
if (request_receipt) {
stanza_attach_receipt_request(ctx, message);
}
if (replace_id) {
stanza_attach_correction(ctx, message, replace_id);
}
_send_message_stanza(message);
xmpp_stanza_release(message);
return id;
}
char*
message_send_chat_pgp(const char* const barejid, const char* const msg, gboolean request_receipt, const char* const replace_id)
{
xmpp_ctx_t* const ctx = connection_get_ctx();
char* state = chat_session_get_state(barejid);
char* jid = chat_session_get_jid(barejid);
char* id = connection_create_stanza_id();
xmpp_stanza_t* message = NULL;
#ifdef HAVE_LIBGPGME
char* account_name = session_get_account_name();
ProfAccount* account = accounts_get_account(account_name);
if (account->pgp_keyid) {
Jid* jidp = jid_create(jid);
char* encrypted = p_gpg_encrypt(jidp->barejid, msg, account->pgp_keyid);
if (encrypted) {
message = xmpp_message_new(ctx, STANZA_TYPE_CHAT, jid, id);
xmpp_message_set_body(message, "This message is encrypted (XEP-0027).");
xmpp_stanza_t* x = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(x, STANZA_NAME_X);
xmpp_stanza_set_ns(x, STANZA_NS_ENCRYPTED);
xmpp_stanza_t* enc_st = xmpp_stanza_new(ctx);
xmpp_stanza_set_text(enc_st, encrypted);
xmpp_stanza_add_child(x, enc_st);
xmpp_stanza_release(enc_st);
xmpp_stanza_add_child(message, x);
xmpp_stanza_release(x);
free(encrypted);
} else {
message = xmpp_message_new(ctx, STANZA_TYPE_CHAT, jid, id);
xmpp_message_set_body(message, msg);
}
jid_destroy(jidp);
} else {
message = xmpp_message_new(ctx, STANZA_TYPE_CHAT, jid, id);
xmpp_message_set_body(message, msg);
}
account_free(account);
#else
// ?
message = xmpp_message_new(ctx, STANZA_TYPE_CHAT, jid, id);
xmpp_message_set_body(message, msg);
#endif
free(jid);
if (state) {
stanza_attach_state(ctx, message, state);
}
if (request_receipt) {
stanza_attach_receipt_request(ctx, message);
}
if (replace_id) {
stanza_attach_correction(ctx, message, replace_id);
}
_send_message_stanza(message);
xmpp_stanza_release(message);
return id;
}
// XEP-0373: OpenPGP for XMPP
char*
message_send_chat_ox(const char* const barejid, const char* const msg, gboolean request_receipt, const char* const replace_id)
{
#ifdef HAVE_LIBGPGME
xmpp_ctx_t* const ctx = connection_get_ctx();
char* state = chat_session_get_state(barejid);
char* jid = chat_session_get_jid(barejid);
char* id = connection_create_stanza_id();
xmpp_stanza_t* message = NULL;
Jid* jidp = jid_create(jid);
char* account_name = session_get_account_name();
ProfAccount* account = accounts_get_account(account_name);
message = xmpp_message_new(ctx, STANZA_TYPE_CHAT, jid, id);
xmpp_message_set_body(message, "This message is encrypted (XEP-0373: OpenPGP for XMPP).");
xmpp_stanza_t* openpgp = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(openpgp, STANZA_NAME_OPENPGP);
xmpp_stanza_set_ns(openpgp, STANZA_NS_OPENPGP_0);
xmpp_stanza_t* signcrypt = _ox_openpgp_signcrypt(ctx, barejid, msg);
char* c;
size_t s;
xmpp_stanza_to_text(signcrypt, &c, &s);
char* signcrypt_e = p_ox_gpg_signcrypt(account->jid, barejid, c);
if (signcrypt_e == NULL) {
cons_show("Unable to send OX message. Check log file and profanity-ox-setup man page for details.");
log_error("Message not signcrypted.");
return NULL;
}
// BASE64_OPENPGP_MESSAGE
xmpp_stanza_t* base64_openpgp_message = xmpp_stanza_new(ctx);
xmpp_stanza_set_text(base64_openpgp_message, signcrypt_e);
xmpp_stanza_add_child(openpgp, base64_openpgp_message);
xmpp_stanza_add_child(message, openpgp);
xmpp_stanza_to_text(message, &c, &s);
account_free(account);
jid_destroy(jidp);
free(jid);
if (state) {
stanza_attach_state(ctx, message, state);
}
if (request_receipt) {
stanza_attach_receipt_request(ctx, message);
}
if (replace_id) {
stanza_attach_correction(ctx, message, replace_id);
}
_send_message_stanza(message);
xmpp_stanza_release(message);
return id;
#endif // HAVE_LIBGPGME
return NULL;
}
char*
message_send_chat_otr(const char* const barejid, const char* const msg, gboolean request_receipt, const char* const replace_id)
{
xmpp_ctx_t* const ctx = connection_get_ctx();
char* state = chat_session_get_state(barejid);
char* jid = chat_session_get_jid(barejid);
char* id = connection_create_stanza_id();
xmpp_stanza_t* message = xmpp_message_new(ctx, STANZA_TYPE_CHAT, barejid, id);
xmpp_message_set_body(message, msg);
free(jid);
if (state) {
stanza_attach_state(ctx, message, state);
}
stanza_attach_carbons_private(ctx, message);
stanza_attach_hints_no_copy(ctx, message);
stanza_attach_hints_no_store(ctx, message);
if (request_receipt) {
stanza_attach_receipt_request(ctx, message);
}
if (replace_id) {
stanza_attach_correction(ctx, message, replace_id);
}
_send_message_stanza(message);
xmpp_stanza_release(message);
return id;
}
#ifdef HAVE_OMEMO
char*
message_send_chat_omemo(const char* const jid, uint32_t sid, GList* keys,
const unsigned char* const iv, size_t iv_len,
const unsigned char* const ciphertext, size_t ciphertext_len,
gboolean request_receipt, gboolean muc, const char* const replace_id)
{
char* state = chat_session_get_state(jid);
xmpp_ctx_t* const ctx = connection_get_ctx();
char* id;
xmpp_stanza_t* message;
if (muc) {
id = connection_create_stanza_id();
message = xmpp_message_new(ctx, STANZA_TYPE_GROUPCHAT, jid, id);
stanza_attach_origin_id(ctx, message, id);
} else {
id = connection_create_stanza_id();
message = xmpp_message_new(ctx, STANZA_TYPE_CHAT, jid, id);
}
xmpp_stanza_t* encrypted = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(encrypted, "encrypted");
xmpp_stanza_set_ns(encrypted, STANZA_NS_OMEMO);
xmpp_stanza_t* header = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(header, "header");
char* sid_text = g_strdup_printf("%d", sid);
log_debug("[OMEMO] Sending from device sid %s", sid_text);
xmpp_stanza_set_attribute(header, "sid", sid_text);
g_free(sid_text);
GList* key_iter;
for (key_iter = keys; key_iter != NULL; key_iter = key_iter->next) {
omemo_key_t* key = (omemo_key_t*)key_iter->data;
xmpp_stanza_t* key_stanza = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(key_stanza, "key");
char* rid = g_strdup_printf("%d", key->device_id);
log_debug("[OMEMO] Sending to device rid %s", rid == NULL ? "NULL" : rid);
xmpp_stanza_set_attribute(key_stanza, "rid", rid);
g_free(rid);
if (key->prekey) {
xmpp_stanza_set_attribute(key_stanza, "prekey", "true");
}
gchar* key_raw = g_base64_encode(key->data, key->length);
xmpp_stanza_t* key_text = xmpp_stanza_new(ctx);
xmpp_stanza_set_text(key_text, key_raw);
g_free(key_raw);
xmpp_stanza_add_child(key_stanza, key_text);
xmpp_stanza_add_child(header, key_stanza);
xmpp_stanza_release(key_text);
xmpp_stanza_release(key_stanza);
}
xmpp_stanza_t* iv_stanza = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(iv_stanza, "iv");
gchar* iv_raw = g_base64_encode(iv, iv_len);
xmpp_stanza_t* iv_text = xmpp_stanza_new(ctx);
xmpp_stanza_set_text(iv_text, iv_raw);
g_free(iv_raw);
xmpp_stanza_add_child(iv_stanza, iv_text);
xmpp_stanza_add_child(header, iv_stanza);
xmpp_stanza_release(iv_text);
xmpp_stanza_release(iv_stanza);
xmpp_stanza_add_child(encrypted, header);
xmpp_stanza_release(header);
xmpp_stanza_t* payload = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(payload, "payload");
gchar* ciphertext_raw = g_base64_encode(ciphertext, ciphertext_len);
xmpp_stanza_t* payload_text = xmpp_stanza_new(ctx);
xmpp_stanza_set_text(payload_text, ciphertext_raw);
g_free(ciphertext_raw);
xmpp_stanza_add_child(payload, payload_text);
xmpp_stanza_add_child(encrypted, payload);
xmpp_stanza_release(payload_text);
xmpp_stanza_release(payload);
xmpp_stanza_add_child(message, encrypted);
xmpp_stanza_release(encrypted);
xmpp_stanza_t* body = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(body, "body");
xmpp_stanza_t* body_text = xmpp_stanza_new(ctx);
xmpp_stanza_set_text(body_text, "You received a message encrypted with OMEMO but your client doesn't support OMEMO.");
xmpp_stanza_add_child(body, body_text);
xmpp_stanza_release(body_text);
xmpp_stanza_add_child(message, body);
xmpp_stanza_release(body);
if (state) {
stanza_attach_state(ctx, message, state);
}
stanza_attach_hints_store(ctx, message);
if (request_receipt) {
stanza_attach_receipt_request(ctx, message);
}
if (replace_id) {
stanza_attach_correction(ctx, message, replace_id);
}
_send_message_stanza(message);
xmpp_stanza_release(message);
return id;
}
#endif
char*
message_send_private(const char* const fulljid, const char* const msg, const char* const oob_url)
{
xmpp_ctx_t* const ctx = connection_get_ctx();
char* id = connection_create_stanza_id();
xmpp_stanza_t* message = xmpp_message_new(ctx, STANZA_TYPE_CHAT, fulljid, id);
xmpp_message_set_body(message, msg);
if (oob_url) {
stanza_attach_x_oob_url(ctx, message, oob_url);
}
_send_message_stanza(message);
xmpp_stanza_release(message);
return id;
}
char*
message_send_groupchat(const char* const roomjid, const char* const msg, const char* const oob_url, const char* const replace_id)
{
xmpp_ctx_t* const ctx = connection_get_ctx();
char* id = connection_create_stanza_id();
xmpp_stanza_t* message = xmpp_message_new(ctx, STANZA_TYPE_GROUPCHAT, roomjid, id);
stanza_attach_origin_id(ctx, message, id);
xmpp_message_set_body(message, msg);
if (oob_url) {
stanza_attach_x_oob_url(ctx, message, oob_url);
}
if (replace_id) {
stanza_attach_correction(ctx, message, replace_id);
}
_send_message_stanza(message);
xmpp_stanza_release(message);
return id;
}
void
message_send_groupchat_subject(const char* const roomjid, const char* const subject)
{
xmpp_ctx_t* const ctx = connection_get_ctx();
xmpp_stanza_t* message = stanza_create_room_subject_message(ctx, roomjid, subject);
_send_message_stanza(message);
xmpp_stanza_release(message);
}
void
message_send_invite(const char* const roomjid, const char* const contact,
const char* const reason)
{
xmpp_ctx_t* const ctx = connection_get_ctx();
xmpp_stanza_t* stanza;
muc_member_type_t member_type = muc_member_type(roomjid);
if (member_type == MUC_MEMBER_TYPE_PUBLIC) {
log_debug("Sending direct invite to %s, for %s", contact, roomjid);
char* password = muc_password(roomjid);
stanza = stanza_create_invite(ctx, roomjid, contact, reason, password);
} else {
log_debug("Sending mediated invite to %s, for %s", contact, roomjid);
stanza = stanza_create_mediated_invite(ctx, roomjid, contact, reason);
}
_send_message_stanza(stanza);
xmpp_stanza_release(stanza);
}
void
message_send_composing(const char* const jid)
{
xmpp_ctx_t* const ctx = connection_get_ctx();
xmpp_stanza_t* stanza = stanza_create_chat_state(ctx, jid, STANZA_NAME_COMPOSING);
_send_message_stanza(stanza);
xmpp_stanza_release(stanza);
}
void
message_send_paused(const char* const jid)
{
xmpp_ctx_t* const ctx = connection_get_ctx();
xmpp_stanza_t* stanza = stanza_create_chat_state(ctx, jid, STANZA_NAME_PAUSED);
_send_message_stanza(stanza);
xmpp_stanza_release(stanza);
}
void
message_send_inactive(const char* const jid)
{
xmpp_ctx_t* const ctx = connection_get_ctx();
xmpp_stanza_t* stanza = stanza_create_chat_state(ctx, jid, STANZA_NAME_INACTIVE);
_send_message_stanza(stanza);
xmpp_stanza_release(stanza);
}
void
message_send_gone(const char* const jid)
{
xmpp_ctx_t* const ctx = connection_get_ctx();
xmpp_stanza_t* stanza = stanza_create_chat_state(ctx, jid, STANZA_NAME_GONE);
_send_message_stanza(stanza);
xmpp_stanza_release(stanza);
}
static void
_handle_error(xmpp_stanza_t* const stanza)
{
const char* id = xmpp_stanza_get_id(stanza);
const char* jid = xmpp_stanza_get_from(stanza);
xmpp_stanza_t* error_stanza = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_ERROR);
const char* type = NULL;
if (error_stanza) {
type = xmpp_stanza_get_type(error_stanza);
}
// stanza_get_error never returns NULL
char* err_msg = stanza_get_error_message(stanza);
GString* log_msg = g_string_new("message stanza error received");
if (id) {
g_string_append(log_msg, " id=");
g_string_append(log_msg, id);
}
if (jid) {
g_string_append(log_msg, " from=");
g_string_append(log_msg, jid);
}
if (type) {
g_string_append(log_msg, " type=");
g_string_append(log_msg, type);
}
g_string_append(log_msg, " error=");
g_string_append(log_msg, err_msg);
log_info(log_msg->str);
g_string_free(log_msg, TRUE);
if (!jid) {
ui_handle_error(err_msg);
} else {
if (type && (strcmp(type, "cancel") == 0)) {
Jid* jidp = jid_create(jid);
if (jidp) {
chat_session_remove(jidp->barejid);
jid_destroy(jidp);
}
}
ui_handle_recipient_error(jid, err_msg);
}
free(err_msg);
}
static void
_handle_muc_user(xmpp_stanza_t* const stanza)
{
xmpp_ctx_t* ctx = connection_get_ctx();
xmpp_stanza_t* xns_muc_user = xmpp_stanza_get_child_by_ns(stanza, STANZA_NS_MUC_USER);
const char* room = xmpp_stanza_get_from(stanza);
if (!xns_muc_user) {
return;
}
if (!room) {
log_warning("Message received with no from attribute, ignoring");
return;
}
// XEP-0045
xmpp_stanza_t* invite = xmpp_stanza_get_child_by_name(xns_muc_user, STANZA_NAME_INVITE);
if (!invite) {
return;
}
const char* invitor_jid = xmpp_stanza_get_from(invite);
if (!invitor_jid) {
log_warning("Chat room invite received with no from attribute");
return;
}
Jid* jidp = jid_create(invitor_jid);
if (!jidp) {
return;
}
char* invitor = jidp->barejid;
char* reason = NULL;
xmpp_stanza_t* reason_st = xmpp_stanza_get_child_by_name(invite, STANZA_NAME_REASON);
if (reason_st) {
reason = xmpp_stanza_get_text(reason_st);
}
char* password = NULL;
xmpp_stanza_t* password_st = xmpp_stanza_get_child_by_name(xns_muc_user, STANZA_NAME_PASSWORD);
if (password_st) {
password = xmpp_stanza_get_text(password_st);
}
sv_ev_room_invite(INVITE_MEDIATED, invitor, room, reason, password);
jid_destroy(jidp);
if (reason) {
xmpp_free(ctx, reason);
}
if (password) {
xmpp_free(ctx, password);
}
}
static void
_handle_conference(xmpp_stanza_t* const stanza)
{
xmpp_stanza_t* xns_conference = xmpp_stanza_get_child_by_ns(stanza, STANZA_NS_CONFERENCE);
if (xns_conference) {
// XEP-0249
const char* room = xmpp_stanza_get_attribute(xns_conference, STANZA_ATTR_JID);
if (!room) {
return;
}
const char* from = xmpp_stanza_get_from(stanza);
if (!from) {
log_warning("Message received with no from attribute, ignoring");
return;
}
Jid* jidp = jid_create(from);
if (!jidp) {
return;
}
// reason and password are both optional
const char* reason = xmpp_stanza_get_attribute(xns_conference, STANZA_ATTR_REASON);
const char* password = xmpp_stanza_get_attribute(xns_conference, STANZA_ATTR_PASSWORD);
sv_ev_room_invite(INVITE_DIRECT, jidp->barejid, room, reason, password);
jid_destroy(jidp);
}
}
static void
_handle_captcha(xmpp_stanza_t* const stanza)
{
xmpp_ctx_t* ctx = connection_get_ctx();
const char* from = xmpp_stanza_get_from(stanza);
if (!from) {
log_warning("Message received with no from attribute, ignoring");
return;
}
// XEP-0158
char* message = xmpp_message_get_body(stanza);
if (!message) {
return;
}
sv_ev_room_broadcast(from, message);
xmpp_free(ctx, message);
}
// Handle changes to muc configuration
static int
_room_config_handler(xmpp_stanza_t* const stanza, void* const userdata)
{
const char* from = xmpp_stanza_get_from(stanza);
xmpp_stanza_t* query = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_QUERY);
EntityCapabilities* capabilities = stanza_create_caps_from_query_element(query);
// Update window name
ProfMucWin* win = wins_get_muc(from);
if (win != NULL) {
free(win->room_name);
win->room_name = strdup(capabilities->identity->name);
// Update features
muc_set_features(from, capabilities->features);
}
caps_destroy(capabilities);
return 0;
}
static void
_handle_groupchat(xmpp_stanza_t* const stanza)
{
xmpp_ctx_t* ctx = connection_get_ctx();
const char* room_jid = xmpp_stanza_get_from(stanza);
if (!room_jid) {
return;
}
Jid* from_jid = jid_create(room_jid);
if (!from_jid) {
return;
}
// handle room subject
xmpp_stanza_t* subject = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_SUBJECT);
if (subject) {
// subject_text is optional, can be NULL
char* subject_text = xmpp_stanza_get_text(subject);
sv_ev_room_subject(from_jid->barejid, from_jid->resourcepart, subject_text);
xmpp_free(ctx, subject_text);
jid_destroy(from_jid);
return;
}
// handle room broadcasts
if (!from_jid->resourcepart) {
char* broadcast;
broadcast = xmpp_message_get_body(stanza);
if (!broadcast) {
xmpp_stanza_t* x = xmpp_stanza_get_child_by_name(stanza, "x");
if (x) {
xmpp_stanza_t* status = xmpp_stanza_get_child_by_name(x, "status");
if (status) {
const char* code = xmpp_stanza_get_attribute(status, "code");
if (code) {
// If configuration change notification send disco info to get updated info of the muc
char* disqo_info_id = connection_create_stanza_id();
xmpp_stanza_t* iq = stanza_create_disco_info_iq(ctx, disqo_info_id, room_jid, NULL);
iq_id_handler_add(disqo_info_id, _room_config_handler, NULL, NULL);
free(disqo_info_id);
iq_send_stanza(iq);
xmpp_stanza_release(iq);
return;
}
}
}
jid_destroy(from_jid);
return;
}
sv_ev_room_broadcast(room_jid, broadcast);
xmpp_free(ctx, broadcast);
jid_destroy(from_jid);
return;
}
if (!jid_is_valid_room_form(from_jid)) {
log_error("Invalid room JID: %s", from_jid->str);
jid_destroy(from_jid);
return;
}
// room not active in profanity
if (!muc_active(from_jid->barejid)) {
log_error("Message received for inactive chat room: %s", from_jid->str);
jid_destroy(from_jid);
return;
}
ProfMessage* message = message_init();
message->from_jid = from_jid;
message->type = PROF_MSG_TYPE_MUC;
const char* id = xmpp_stanza_get_id(stanza);
if (id) {
message->id = strdup(id);
}
char* stanzaid = NULL;
xmpp_stanza_t* stanzaidst = xmpp_stanza_get_child_by_name_and_ns(stanza, STANZA_NAME_STANZA_ID, STANZA_NS_STABLE_ID);
if (stanzaidst) {
stanzaid = (char*)xmpp_stanza_get_attribute(stanzaidst, STANZA_ATTR_ID);
if (stanzaid) {
message->stanzaid = strdup(stanzaid);
}
}
xmpp_stanza_t* origin = xmpp_stanza_get_child_by_name_and_ns(stanza, STANZA_NAME_ORIGIN_ID, STANZA_NS_STABLE_ID);
if (origin) {
char* originid = (char*)xmpp_stanza_get_attribute(origin, STANZA_ATTR_ID);
if (originid) {
message->originid = strdup(originid);
}
}
xmpp_stanza_t* replace_id_stanza = xmpp_stanza_get_child_by_ns(stanza, STANZA_NS_LAST_MESSAGE_CORRECTION);
if (replace_id_stanza) {
const char* replace_id = xmpp_stanza_get_id(replace_id_stanza);
if (replace_id) {
message->replace_id = strdup(replace_id);
}
}
message->body = xmpp_message_get_body(stanza);
// check omemo encryption
#ifdef HAVE_OMEMO
message->plain = omemo_receive_message(stanza, &message->trusted);
if (message->plain != NULL) {
message->enc = PROF_MSG_ENC_OMEMO;
}
#endif
if (!message->plain && !message->body) {
log_info("Message received without body for room: %s", from_jid->str);
goto out;
} else if (!message->plain) {
message->plain = strdup(message->body);
}
// determine if the notifications happened whilst offline (MUC history)
message->timestamp = stanza_get_delay_from(stanza, from_jid->barejid);
if (message->timestamp == NULL) {
// checking the domainpart is a workaround for some prosody versions (gh#1190)
message->timestamp = stanza_get_delay_from(stanza, from_jid->domainpart);
}
bool is_muc_history = FALSE;
if (message->timestamp != NULL) {
is_muc_history = TRUE;
g_date_time_unref(message->timestamp);
message->timestamp = NULL;
}
// we want to display the oldest delay
message->timestamp = stanza_get_oldest_delay(stanza);
// now this has nothing to do with MUC history
// it's just setting the time to the received time so upon displaying we can use this time
// for example in win_println_incoming_muc_msg()
if (!message->timestamp) {
message->timestamp = g_date_time_new_now_local();
}
if (is_muc_history) {
sv_ev_room_history(message);
} else {
sv_ev_room_message(message);
}
out:
message_free(message);
}
static void
_message_send_receipt(const char* const fulljid, const char* const message_id)
{
xmpp_ctx_t* const ctx = connection_get_ctx();
char* id = connection_create_stanza_id();
xmpp_stanza_t* message = xmpp_message_new(ctx, NULL, fulljid, id);
free(id);
xmpp_stanza_t* receipt = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(receipt, "received");
xmpp_stanza_set_ns(receipt, STANZA_NS_RECEIPTS);
xmpp_stanza_set_id(receipt, message_id);
xmpp_stanza_add_child(message, receipt);
xmpp_stanza_release(receipt);
_send_message_stanza(message);
xmpp_stanza_release(message);
}
static void
_handle_receipt_received(xmpp_stanza_t* const stanza)
{
xmpp_stanza_t* receipt = xmpp_stanza_get_child_by_ns(stanza, STANZA_NS_RECEIPTS);
if (receipt) {
const char* name = xmpp_stanza_get_name(receipt);
if ((name == NULL) || (g_strcmp0(name, "received") != 0)) {
return;
}
const char* id = xmpp_stanza_get_id(receipt);
if (!id) {
return;
}
const char* fulljid = xmpp_stanza_get_from(stanza);
if (!fulljid) {
return;
}
Jid* jidp = jid_create(fulljid);
if (!jidp) {
return;
}
sv_ev_message_receipt(jidp->barejid, id);
jid_destroy(jidp);
}
}
static void
_receipt_request_handler(xmpp_stanza_t* const stanza)
{
if (!prefs_get_boolean(PREF_RECEIPTS_SEND)) {
return;
}
const char* id = xmpp_stanza_get_id(stanza);
if (!id) {
return;
}
xmpp_stanza_t* receipts = xmpp_stanza_get_child_by_ns(stanza, STANZA_NS_RECEIPTS);
if (!receipts) {
return;
}
const char* receipts_name = xmpp_stanza_get_name(receipts);
if ((receipts_name == NULL) || (g_strcmp0(receipts_name, "request") != 0)) {
return;
}
const gchar* from = xmpp_stanza_get_from(stanza);
if (from) {
Jid* jid = jid_create(from);
if (jid) {
_message_send_receipt(jid->fulljid, id);
jid_destroy(jid);
}
}
}
static void
_handle_muc_private_message(xmpp_stanza_t* const stanza)
{
// standard chat message, use jid without resource
ProfMessage* message = message_init();
message->type = PROF_MSG_TYPE_MUCPM;
const gchar* from = xmpp_stanza_get_from(stanza);
if (!from) {
goto out;
}
message->from_jid = jid_create(from);
if (!message->from_jid) {
goto out;
}
// message stanza id
const char* id = xmpp_stanza_get_id(stanza);
if (id) {
message->id = strdup(id);
}
// check omemo encryption
#ifdef HAVE_OMEMO
message->plain = omemo_receive_message(stanza, &message->trusted);
if (message->plain != NULL) {
message->enc = PROF_MSG_ENC_OMEMO;
}
#endif
message->timestamp = stanza_get_delay(stanza);
message->body = xmpp_message_get_body(stanza);
if (!message->plain && !message->body) {
log_info("Message received without body from: %s", message->from_jid->str);
goto out;
} else if (!message->plain) {
message->plain = strdup(message->body);
}
if (message->timestamp) {
sv_ev_delayed_private_message(message);
} else {
message->timestamp = g_date_time_new_now_local();
sv_ev_incoming_private_message(message);
}
out:
message_free(message);
}
static xmpp_stanza_t*
_handle_carbons(xmpp_stanza_t* const stanza)
{
const char* name = xmpp_stanza_get_name(stanza);
if (!name) {
log_error("Unable to retrieve stanza name for Carbon");
return NULL;
}
/* TODO: private shouldn't arrive at the client, should it?
if (g_strcmp0(name, "private") == 0) {
log_info("Carbon received with private element.");
}
*/
if ((g_strcmp0(name, STANZA_NAME_RECEIVED) != 0) && (g_strcmp0(name, STANZA_NAME_SENT) != 0)) {
log_warning("Carbon received with unrecognised stanza name: %s", name);
return NULL;
}
xmpp_stanza_t* forwarded = xmpp_stanza_get_child_by_ns(stanza, STANZA_NS_FORWARD);
if (!forwarded) {
log_warning("Carbon received with no forwarded element");
return NULL;
}
xmpp_stanza_t* message_stanza = xmpp_stanza_get_child_by_name(forwarded, STANZA_NAME_MESSAGE);
if (!message_stanza) {
log_warning("Carbon received with no message element");
return NULL;
}
// Eliminate duplicate messages in chat with oneself when another client is sending a message
char* bare_from = xmpp_jid_bare(connection_get_ctx(), xmpp_stanza_get_from(message_stanza));
if (g_strcmp0(bare_from, xmpp_stanza_get_to(message_stanza)) == 0) {
free(bare_from);
return NULL;
}
free(bare_from);
return message_stanza;
}
static void
_handle_chat(xmpp_stanza_t* const stanza, gboolean is_mam, gboolean is_carbon, const char* result_id, GDateTime* timestamp)
{
// some clients send the mucuser namespace with private messages
// if the namespace exists, and the stanza contains a body element, assume its a private message
// otherwise exit the handler
xmpp_stanza_t* mucuser = xmpp_stanza_get_child_by_ns(stanza, STANZA_NS_MUC_USER);
xmpp_stanza_t* body = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_BODY);
if (mucuser && body == NULL) {
return;
}
const gchar* from = xmpp_stanza_get_from(stanza);
if (!from) {
return;
}
Jid* jid = jid_create(from);
if (!jid) {
return;
}
// private message from chat room use full jid (room/nick)
if (muc_active(jid->barejid)) {
_handle_muc_private_message(stanza);
jid_destroy(jid);
return;
}
// standard chat message, use jid without resource
ProfMessage* message = message_init();
message->is_mam = is_mam;
message->from_jid = jid;
const gchar* to = xmpp_stanza_get_to(stanza);
if (to) {
message->to_jid = jid_create(to);
} else if (is_carbon) {
// happens when receive a carbon of a self sent message
// really? maybe some servers do this, but it's not required.
message->to_jid = jid_create(from);
}
if (mucuser) {
message->type = PROF_MSG_TYPE_MUCPM;
} else {
message->type = PROF_MSG_TYPE_CHAT;
}
// message stanza id
const char* id = xmpp_stanza_get_id(stanza);
if (id) {
message->id = strdup(id);
}
if (is_mam) {
// MAM has XEP-0359 stanza-id as <result id="">
if (result_id) {
message->stanzaid = strdup(result_id);
} else {
log_warning("MAM received with no result id");
}
} else {
// live messages use XEP-0359 <stanza-id>
char* stanzaid = NULL;
xmpp_stanza_t* stanzaidst = xmpp_stanza_get_child_by_name_and_ns(stanza, STANZA_NAME_STANZA_ID, STANZA_NS_STABLE_ID);
if (stanzaidst) {
stanzaid = (char*)xmpp_stanza_get_attribute(stanzaidst, STANZA_ATTR_ID);
if (stanzaid) {
message->stanzaid = strdup(stanzaid);
}
}
}
// replace id for XEP-0308: Last Message Correction
xmpp_stanza_t* replace_id_stanza = xmpp_stanza_get_child_by_ns(stanza, STANZA_NS_LAST_MESSAGE_CORRECTION);
if (replace_id_stanza) {
const char* replace_id = xmpp_stanza_get_id(replace_id_stanza);
if (replace_id) {
message->replace_id = strdup(replace_id);
}
}
if (timestamp) {
// timestamp provided outside like in a <forwarded> by MAM
message->timestamp = timestamp;
} else {
// timestamp in the message stanza or use time of receival (now)
message->timestamp = stanza_get_delay(stanza);
if (!message->timestamp) {
message->timestamp = g_date_time_new_now_local();
}
}
if (body) {
message->body = xmpp_stanza_get_text(body);
}
#ifdef HAVE_OMEMO
// check omemo encryption
message->plain = omemo_receive_message(stanza, &message->trusted);
if (message->plain != NULL) {
message->enc = PROF_MSG_ENC_OMEMO;
}
#endif
xmpp_stanza_t* encrypted = xmpp_stanza_get_child_by_ns(stanza, STANZA_NS_ENCRYPTED);
if (encrypted) {
message->encrypted = xmpp_stanza_get_text(encrypted);
}
xmpp_stanza_t* ox = xmpp_stanza_get_child_by_ns(stanza, STANZA_NS_OPENPGP_0);
if (ox) {
_handle_ox_chat(stanza, message, FALSE);
}
if (message->plain || message->body || message->encrypted) {
if (is_carbon) {
char* mybarejid = connection_get_barejid();
// if we are the recipient, treat as standard incoming message
if (g_strcmp0(mybarejid, message->to_jid->barejid) == 0) {
sv_ev_incoming_carbon(message);
// else treat as a sent message
} else {
sv_ev_outgoing_carbon(message);
}
free(mybarejid);
} else {
sv_ev_incoming_message(message);
_receipt_request_handler(stanza);
}
}
// 0085 works only with resource
if (jid->resourcepart) {
// XEP-0085: Chat Stase Notifications
_handle_chat_states(stanza, jid);
}
message_free(message);
}
static void
_handle_ox_chat(xmpp_stanza_t* const stanza, ProfMessage* message, gboolean is_mam)
{
message->enc = PROF_MSG_ENC_OX;
#ifdef HAVE_LIBGPGME
xmpp_stanza_t* ox = xmpp_stanza_get_child_by_name_and_ns(stanza, "openpgp", STANZA_NS_OPENPGP_0);
if (ox) {
gchar* decrypted = p_ox_gpg_decrypt(xmpp_stanza_get_text(ox));
if (decrypted) {
xmpp_stanza_t* decrypted_stanza = xmpp_stanza_new_from_string(connection_get_ctx(), decrypted);
if (decrypted_stanza) {
xmpp_stanza_t* p = xmpp_stanza_get_child_by_name(decrypted_stanza, "payload");
if (!p) {
log_warning("OX Stanza - no Payload");
return;
}
xmpp_stanza_t* b = xmpp_stanza_get_child_by_name(p, "body");
if (!b) {
log_debug("OX Stanza - no body");
return;
}
message->plain = xmpp_stanza_get_text(b);
message->encrypted = xmpp_stanza_get_text(ox);
} else {
cons_show("Unable to decrypt OX message (XEP-0373: OpenPGP for XMPP)");
log_warning("OX Stanza text to stanza failed");
}
} else {
// get alternative text from message body
xmpp_stanza_t* b = xmpp_stanza_get_child_by_name(stanza, "body");
if (b) {
message->plain = xmpp_stanza_get_text(b);
}
}
} else {
log_warning("OX Stanza without openpgp stanza");
}
#endif // HAVE_LIBGPGME
}
static gboolean
_handle_mam(xmpp_stanza_t* const stanza)
{
xmpp_stanza_t* result = xmpp_stanza_get_child_by_name_and_ns(stanza, STANZA_NAME_RESULT, STANZA_NS_MAM2);
if (!result) {
return FALSE;
}
xmpp_stanza_t* forwarded = xmpp_stanza_get_child_by_ns(result, STANZA_NS_FORWARD);
if (!forwarded) {
log_warning("MAM received with no forwarded element");
return FALSE;
}
// <result xmlns='urn:xmpp:mam:2' queryid='f27' id='5d398-28273-f7382'>
// same as <stanza-id> from XEP-0359 for live messages
const char* result_id = xmpp_stanza_get_id(result);
GDateTime* timestamp = stanza_get_delay_from(forwarded, NULL);
xmpp_stanza_t* message_stanza = xmpp_stanza_get_child_by_ns(forwarded, "jabber:client");
_handle_chat(message_stanza, TRUE, FALSE, result_id, timestamp);
return TRUE;
}
static void
_handle_pubsub(xmpp_stanza_t* const stanza, xmpp_stanza_t* const event)
{
xmpp_stanza_t* child = xmpp_stanza_get_children(event);
if (child) {
const char* node = xmpp_stanza_get_attribute(child, STANZA_ATTR_NODE);
if (node) {
ProfMessageHandler* handler = g_hash_table_lookup(pubsub_event_handlers, node);
if (handler) {
int keep = handler->func(stanza, handler->userdata);
if (!keep) {
g_hash_table_remove(pubsub_event_handlers, node);
}
}
}
}
}
static void
_send_message_stanza(xmpp_stanza_t* const stanza)
{
char* text;
size_t text_size;
xmpp_stanza_to_text(stanza, &text, &text_size);
xmpp_conn_t* conn = connection_get_conn();
char* plugin_text = plugins_on_message_stanza_send(text);
if (plugin_text) {
xmpp_send_raw_string(conn, "%s", plugin_text);
free(plugin_text);
} else {
xmpp_send_raw_string(conn, "%s", text);
}
xmpp_free(connection_get_ctx(), text);
}
/* ckeckOID = true: check origin-id
* checkOID = false: check regular id
*/
bool
message_is_sent_by_us(const ProfMessage* const message, bool checkOID)
{
bool ret = FALSE;
// we check the </origin-id> for this we calculate a hash into it so we can detect
// whether this client sent it. See connection_create_stanza_id()
if (message) {
char* tmp_id = NULL;
if (checkOID && message->originid != NULL) {
tmp_id = message->originid;
} else if (!checkOID && message->id != NULL) {
tmp_id = message->id;
}
if (tmp_id != NULL) {
gsize tmp_len = strlen(tmp_id);
// our client sents at CON_RAND_ID_LEN + identifier
if (tmp_len > CON_RAND_ID_LEN) {
char* uuid = g_strndup(tmp_id, CON_RAND_ID_LEN);
const char* prof_identifier = connection_get_profanity_identifier();
gchar* hmac = g_compute_hmac_for_string(G_CHECKSUM_SHA1,
(guchar*)prof_identifier, strlen(prof_identifier),
uuid, strlen(uuid));
if (g_strcmp0(&tmp_id[CON_RAND_ID_LEN], hmac) == 0) {
ret = TRUE;
}
g_free(uuid);
g_free(hmac);
}
}
}
return ret;
}
#ifdef HAVE_LIBGPGME
static xmpp_stanza_t*
_ox_openpgp_signcrypt(xmpp_ctx_t* ctx, const char* const to, const char* const text)
{
time_t now = time(NULL);
struct tm* tm = localtime(&now);
char buf[255];
strftime(buf, sizeof(buf), "%FT%T%z", tm);
// build rpad
int randnr = (rand() % 100) + 1;
char rpad_data[randnr];
for (int i = 0; i < randnr; i++) {
int rchar = (rand() % 52) + 65;
rpad_data[i] = rchar;
}
rpad_data[randnr - 1] = '\0';
// signcrypt
xmpp_stanza_t* signcrypt = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(signcrypt, "signcrypt");
xmpp_stanza_set_ns(signcrypt, "urn:xmpp:openpgp:0");
// to
xmpp_stanza_t* s_to = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(s_to, "to");
xmpp_stanza_set_attribute(s_to, "jid", to);
// time
xmpp_stanza_t* time = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(time, "time");
xmpp_stanza_set_attribute(time, "stamp", buf);
xmpp_stanza_set_name(time, "time");
// rpad
xmpp_stanza_t* rpad = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(rpad, "rpad");
xmpp_stanza_t* rpad_text = xmpp_stanza_new(ctx);
xmpp_stanza_set_text(rpad_text, rpad_data);
// payload
xmpp_stanza_t* payload = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(payload, "payload");
// body
xmpp_stanza_t* body = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(body, "body");
xmpp_stanza_set_ns(body, "jabber:client");
// text
xmpp_stanza_t* body_text = xmpp_stanza_new(ctx);
xmpp_stanza_set_text(body_text, text);
xmpp_stanza_add_child(signcrypt, s_to);
xmpp_stanza_add_child(signcrypt, time);
xmpp_stanza_add_child(signcrypt, rpad);
xmpp_stanza_add_child(rpad, rpad_text);
xmpp_stanza_add_child(signcrypt, payload);
xmpp_stanza_add_child(payload, body);
xmpp_stanza_add_child(body, body_text);
xmpp_stanza_release(body_text);
xmpp_stanza_release(body);
xmpp_stanza_release(rpad_text);
xmpp_stanza_release(rpad);
xmpp_stanza_release(time);
xmpp_stanza_release(s_to);
return signcrypt;
}
#endif // HAVE_LIBGPGME
void
message_request_voice(const char* const roomjid)
{
xmpp_ctx_t* const ctx = connection_get_ctx();
xmpp_stanza_t* stanza = stanza_request_voice(ctx, roomjid);
log_debug("Requesting voice in %s", roomjid);
_send_message_stanza(stanza);
xmpp_stanza_release(stanza);
}
static gboolean
_handle_jingle_message(xmpp_stanza_t* const stanza)
{
xmpp_stanza_t* propose = xmpp_stanza_get_child_by_name_and_ns(stanza, STANZA_NAME_PROPOSE, STANZA_NS_JINGLE_MESSAGE);
if (propose) {
xmpp_stanza_t* description = xmpp_stanza_get_child_by_ns(propose, STANZA_NS_JINGLE_RTP);
if (description) {
const char* const from = xmpp_stanza_get_from(stanza);
cons_show("Ring ring: %s is trying to call you", from);
cons_alert(NULL);
return TRUE;
}
}
return FALSE;
}
static gboolean
_should_ignore_based_on_silence(xmpp_stanza_t* const stanza)
{
if (prefs_get_boolean(PREF_SILENCE_NON_ROSTER)) {
const char* const from = xmpp_stanza_get_from(stanza);
Jid* from_jid = jid_create(from);
PContact contact = roster_get_contact(from_jid->barejid);
jid_destroy(from_jid);
if (!contact) {
log_debug("[Silence] Ignoring message from: %s", from);
return TRUE;
}
}
return FALSE;
}
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