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fix(xmpp): obfuscate client identity in protocol exchanges
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Browse Source 
Modify version responses to return a generic client name and omit
version strings. Drop the "profanity." prefix from dynamically
generated JID resources. Clear the XEP-0115 capabilities node URI to
prevent service discovery fingerprinting. These adjustments reduce the
client's attack surface by minimizing identifiable metadata.
This commit is contained in:
Jabber Developer
2026-07-09 15:23:16 +00:00
parent 60e088ac3c
commit e7c847f8dc
14 changed files with 89 additions and 53 deletions
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32
tests/functionaltests/test_muc.c
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@@ -26,7 +26,7 @@ sends_room_join(void **state)
assert_true(stbbr_received(
"<presence id='*' to='testroom@conference.localhost/stabber'>"
"<x xmlns='http://jabber.org/protocol/muc'/>"
"<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' ver='*' node='http://profanity-im.github.io'/>"
"<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' ver='*' node='*'/>"
"</presence>"
));
}
@@ -41,7 +41,7 @@ sends_room_join_with_nick(void **state)
assert_true(stbbr_received(
"<presence id='*' to='testroom@conference.localhost/testnick'>"
"<x xmlns='http://jabber.org/protocol/muc'/>"
"<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' ver='*' node='http://profanity-im.github.io'/>"
"<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' ver='*' node='*'/>"
"</presence>"
));
}
@@ -58,7 +58,7 @@ sends_room_join_with_password(void **state)
"<x xmlns='http://jabber.org/protocol/muc'>"
"<password>testpassword</password>"
"</x>"
"<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' ver='*' node='http://profanity-im.github.io'/>"
"<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' ver='*' node='*'/>"
"</presence>"
));
}
@@ -75,7 +75,7 @@ sends_room_join_with_nick_and_password(void **state)
"<x xmlns='http://jabber.org/protocol/muc'>"
"<password>testpassword</password>"
"</x>"
"<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' ver='*' node='http://profanity-im.github.io'/>"
"<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' ver='*' node='*'/>"
"</presence>"
));
}
@@ -87,7 +87,7 @@ shows_role_and_affiliation_on_join(void **state)
stbbr_for_presence_to("testroom@conference.localhost/stabber",
"<presence id='*' lang='en' to='stabber@localhost/profanity' from='testroom@conference.localhost/stabber'>"
"<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' node='http://profanity-im.github.io' ver='*'/>"
"<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' node='*' ver='*'/>"
"<x xmlns='http://jabber.org/protocol/muc#user'>"
"<item role='participant' jid='stabber@localhost/profanity' affiliation='none'/>"
"</x>"
@@ -107,7 +107,7 @@ shows_subject_on_join(void **state)
stbbr_for_presence_to("testroom@conference.localhost/stabber",
"<presence id='*' lang='en' to='stabber@localhost/profanity' from='testroom@conference.localhost/stabber'>"
"<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' node='http://profanity-im.github.io' ver='*'/>"
"<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' node='*' ver='*'/>"
"<x xmlns='http://jabber.org/protocol/muc#user'>"
"<item role='participant' jid='stabber@localhost/profanity' affiliation='none'/>"
"</x>"
@@ -135,7 +135,7 @@ shows_history_message(void **state)
stbbr_for_presence_to("testroom@conference.localhost/stabber",
"<presence id='*' lang='en' to='stabber@localhost/profanity' from='testroom@conference.localhost/stabber'>"
"<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' node='http://profanity-im.github.io' ver='*'/>"
"<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' node='*' ver='*'/>"
"<x xmlns='http://jabber.org/protocol/muc#user'>"
"<item role='participant' jid='stabber@localhost/profanity' affiliation='none'/>"
"</x>"
@@ -170,7 +170,7 @@ shows_occupant_join(void **state)
stbbr_for_presence_to("testroom@conference.localhost/stabber",
"<presence id='*' lang='en' to='stabber@localhost/profanity' from='testroom@conference.localhost/stabber'>"
"<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' node='http://profanity-im.github.io' ver='*'/>"
"<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' node='*' ver='*'/>"
"<x xmlns='http://jabber.org/protocol/muc#user'>"
"<item role='participant' jid='stabber@localhost/profanity' affiliation='none'/>"
"</x>"
@@ -200,7 +200,7 @@ shows_message(void **state)
stbbr_for_presence_to("testroom@conference.localhost/stabber",
"<presence id='*' lang='en' to='stabber@localhost/profanity' from='testroom@conference.localhost/stabber'>"
"<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' node='http://profanity-im.github.io' ver='*'/>"
"<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' node='*' ver='*'/>"
"<x xmlns='http://jabber.org/protocol/muc#user'>"
"<item role='participant' jid='stabber@localhost/profanity' affiliation='none'/>"
"</x>"
@@ -227,7 +227,7 @@ shows_me_message_from_occupant(void **state)
stbbr_for_presence_to("testroom@conference.localhost/stabber",
"<presence id='*' lang='en' to='stabber@localhost/profanity' from='testroom@conference.localhost/stabber'>"
"<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' node='http://profanity-im.github.io' ver='*'/>"
"<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' node='*' ver='*'/>"
"<x xmlns='http://jabber.org/protocol/muc#user'>"
"<item role='participant' jid='stabber@localhost/profanity' affiliation='none'/>"
"</x>"
@@ -254,7 +254,7 @@ shows_me_message_from_self(void **state)
stbbr_for_presence_to("testroom@conference.localhost/stabber",
"<presence id='*' lang='en' to='stabber@localhost/profanity' from='testroom@conference.localhost/stabber'>"
"<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' node='http://profanity-im.github.io' ver='*'/>"
"<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' node='*' ver='*'/>"
"<x xmlns='http://jabber.org/protocol/muc#user'>"
"<item role='participant' jid='stabber@localhost/profanity' affiliation='none'/>"
"</x>"
@@ -281,7 +281,7 @@ shows_all_messages_in_console_when_window_not_focussed(void **state)
stbbr_for_presence_to("testroom@conference.localhost/stabber",
"<presence id='*' lang='en' to='stabber@localhost/profanity' from='testroom@conference.localhost/stabber'>"
"<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' node='http://profanity-im.github.io' ver='*'/>"
"<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' node='*' ver='*'/>"
"<x xmlns='http://jabber.org/protocol/muc#user'>"
"<item role='participant' jid='stabber@localhost/profanity' affiliation='none'/>"
"</x>"
@@ -322,7 +322,7 @@ shows_first_message_in_console_when_window_not_focussed(void **state)
stbbr_for_presence_to("testroom@conference.localhost/stabber",
"<presence id='*' lang='en' to='stabber@localhost/profanity' from='testroom@conference.localhost/stabber'>"
"<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' node='http://profanity-im.github.io' ver='*'/>"
"<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' node='*' ver='*'/>"
"<x xmlns='http://jabber.org/protocol/muc#user'>"
"<item role='participant' jid='stabber@localhost/profanity' affiliation='none'/>"
"</x>"
@@ -369,7 +369,7 @@ shows_no_message_in_console_when_window_not_focussed(void **state)
stbbr_for_presence_to("testroom@conference.localhost/stabber",
"<presence id='*' lang='en' to='stabber@localhost/profanity' from='testroom@conference.localhost/stabber'>"
"<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' node='http://profanity-im.github.io' ver='*'/>"
"<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' node='*' ver='*'/>"
"<x xmlns='http://jabber.org/protocol/muc#user'>"
"<item role='participant' jid='stabber@localhost/profanity' affiliation='none'/>"
"</x>"
@@ -401,7 +401,7 @@ sends_affiliation_list_request(void **state)
stbbr_for_presence_to("testroom@conference.localhost/stabber",
"<presence id='*' lang='en' to='stabber@localhost/profanity' from='testroom@conference.localhost/stabber'>"
"<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' node='http://profanity-im.github.io' ver='*'/>"
"<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' node='*' ver='*'/>"
"<x xmlns='http://jabber.org/protocol/muc#user'>"
"<item role='moderator' jid='stabber@localhost/profanity' affiliation='owner'/>"
"</x>"
@@ -434,7 +434,7 @@ sends_kick_request(void **state)
stbbr_for_presence_to("testroom@conference.localhost/stabber",
"<presence id='*' lang='en' to='stabber@localhost/profanity' from='testroom@conference.localhost/stabber'>"
"<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' node='http://profanity-im.github.io' ver='*'/>"
"<c hash='sha-1' xmlns='http://jabber.org/protocol/caps' node='*' ver='*'/>"
"<x xmlns='http://jabber.org/protocol/muc#user'>"
"<item role='moderator' jid='stabber@localhost/profanity' affiliation='admin'/>"
"</x>"