This caused the bug mentioned in the PR comment:
```
It seems with the changes done here we get a crash in: src/xmpp/message.c message_handlers_init() when looking up handlers: ProfMessageHandler *handler = g_hash_table_lookup(pubsub_event_handlers, curr->data);.
Steps to reproduce:
open Profanity and connect
/autoping set 10
/autoping timeout 10
stop WiFi/connection
wait for Lost connection
restart wifi
/connect
```
So far only with dummy value.
We will need an identifier that we can hash together with a message ID
and put in as the origin-id.
So when we receive message we can unsplit it and see if it was sent from
this client.
Regards https://github.com/profanity-im/profanity/issues/1207
If we get a private message from a user in a MUC profanity shows this
like:
`profanity@roomsASDF.dismail.de/Martin: Hi`
This was so far logged at:
`~/.local/share/profanity/chatlogs/my-account-at-server/profanity_at_rooms.dismail.de/2019_09_04.log` as:
```
10:48:13 - profanity@rooms.dismail.de: Hi
```
So the nickname was not saved anywhere. This is due to us not knowing
whether we got a regular message from user@server.org/resource or a MUC
PM from room@server.org/user.
We now check for `<x xmlns='http://jabber.org/protocol/muc#user' />` and
add the resourcepart to the logging if we get it.
The file will be created at
`~/.local/share/profanity/chatlogs/my-account-at-server/profanity_at_rooms.dismail.de_nick` and look like:
```
23:59:43 - nick: Hi
```
Fix https://github.com/profanity-im/profanity/issues/1184
We didn't set the variables to NULL, but the rest of the code depends on
this check.
```
==22201== Invalid read of size 8
==22201== at 0x44E560: autocomplete_clear (autocomplete.c:69)
==22201== by 0x427B2C: muc_invites_clear (muc.c:190)
==22201== by 0x461328: ev_disconnect_cleanup (common.c:59)
==22201== by 0x463FB5: cl_ev_disconnect (client_events.c:91)
==22201== by 0x431252: cmd_disconnect (cmd_funcs.c:1234)
==22201== by 0x47E883: clears_chat_sessions
(test_cmd_disconnect.c:28)
==22201== by 0x487E9E1: _run_test (in /usr/lib64/libcmocka.so.0.7.0)
==22201== by 0x487ECCC: _run_tests (in /usr/lib64/libcmocka.so.0.7.0)
==22201== by 0x47F1BE: main (unittests.c:629)
==22201== Address 0x814b690 is 0 bytes inside a block of size 24 free'd
==22201== at 0x48379AB: free (in
/usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==22201== by 0x44E5F7: autocomplete_free (autocomplete.c:90)
==22201== by 0x4278A0: muc_close (muc.c:97)
==22201== by 0x47DBAA: cmd_join_uses_password_when_supplied
(test_cmd_join.c:169)
==22201== by 0x487E9E1: _run_test (in /usr/lib64/libcmocka.so.0.7.0)
==22201== by 0x487ECCC: _run_tests (in /usr/lib64/libcmocka.so.0.7.0)
==22201== by 0x47F1BE: main (unittests.c:629)
==22201== Block was alloc'd at
==22201== at 0x483677F: malloc (in
/usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==22201== by 0x44E51B: autocomplete_new (autocomplete.c:57)
==22201== by 0x427837: muc_init (muc.c:88)
==22201== by 0x47DA77: cmd_join_uses_password_when_supplied
(test_cmd_join.c:154)
==22201== by 0x487E9E1: _run_test (in /usr/lib64/libcmocka.so.0.7.0)
==22201== by 0x487ECCC: _run_tests (in /usr/lib64/libcmocka.so.0.7.0)
==22201== by 0x47F1BE: main (unittests.c:629)
```
https://gultsch.de/dino_multiple.html mentions CVE-2019-16235, CVE-2019-16236 and CVE-2019-16237.
CVE-2019-16235: Is checking the from in carbon messages. We do that.
CVE-2019-16236: Is checking the from in roster pushes. We do that but
didn't log it yet.
CVE-2019-16237: Is checking the form in MAM messages. We don't support
them yet.
Double-check that a <delay/> tag on a groupchat message was actually
added by the MUC service (rather than the sending client) before
assuming it was received from the MUC history.
Fixes#1173.
Fix:
```
==18682== 408 bytes in 17 blocks are definitely lost in loss record
3,279 of 3,632
==18682== at 0x483677F: malloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==18682== by 0x42F602: roster_update_presence (roster_list.c:129)
==18682== by 0x448AA3: sv_ev_contact_online (server_events.c:906)
==18682== by 0x43D2BA: _available_handler (presence.c:674)
==18682== by 0x43C81B: _presence_handler (presence.c:398)
==18682== by 0x5AF118E: handler_fire_stanza (handler.c:124)
==18682== by 0x5AEDBDA: _handle_stream_stanza (conn.c:1253)
==18682== by 0x5AFA43E: _end_element (parser_expat.c:190)
==18682== by 0x6818AA4: doContent (xmlparse.c:2977)
==18682== by 0x681A3AB: contentProcessor (xmlparse.c:2552)
==18682== by 0x681D7EB: XML_ParseBuffer (xmlparse.c:1988)
==18682== by 0x681D7EB: XML_ParseBuffer (xmlparse.c:1957)
==18682== by 0x5AF0A63: xmpp_run_once (event.c:255)
==18682== by 0x432E5D: connection_check_events (connection.c:104)
==18682== by 0x4323B3: session_process_events (session.c:255)
==18682== by 0x42C097: prof_run (profanity.c:128)
==18682== by 0x4B25B9: main (main.c:172)
```
omemo_key_free() was called to free the key.
It free the key->data too. But in same cases this was not set yet. So
we need to set the data to NULL (or use calloc) at initialization so
that omemo_key_free() only frees it if it was actually allocated.
Regards https://github.com/profanity-im/profanity/issues/1148
so far only the key part was freed. We also need to free the actual
handler.
Fix:
```
==21171== 1,128 bytes in 47 blocks are definitely lost in loss record
3,476 of 3,670
==21171== at 0x483677F: malloc (in
/usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==21171== by 0x434248: iq_id_handler_add (iq.c:265)
==21171== by 0x4B122E: omemo_devicelist_request (omemo.c:46)
==21171== by 0x4AC411: omemo_start_session (omemo.c:409)
==21171== by 0x4AC37C: omemo_start_sessions (omemo.c:396)
==21171== by 0x447881: sv_ev_roster_received (server_events.c:189)
==21171== by 0x444019: roster_result_handler (roster.c:312)
==21171== by 0x433FC2: _iq_handler (iq.c:202)
==21171== by 0x5AF118E: ??? (in /usr/lib64/libmesode.so.0.0.0)
==21171== by 0x5AEDBDA: ??? (in /usr/lib64/libmesode.so.0.0.0)
==21171== by 0x5AFA43E: ??? (in /usr/lib64/libmesode.so.0.0.0)
==21171== by 0x6818AA4: ??? (in /usr/lib64/libexpat.so.1.6.8)
==21171== by 0x681A3AB: ??? (in /usr/lib64/libexpat.so.1.6.8)
==21171== by 0x681D7EB: XML_ParseBuffer (in
/usr/lib64/libexpat.so.1.6.8)
==21171== by 0x5AF0A63: xmpp_run_once (in
/usr/lib64/libmesode.so.0.0.0)
==21171== by 0x432E5D: connection_check_events (connection.c:104)
==21171== by 0x4323B3: session_process_events (session.c:255)
==21171== by 0x42C097: prof_run (profanity.c:128)
==21171== by 0x4B2627: main (main.c:172)
```
