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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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30
tests/functionaltests/test_presence.c
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@@ -19,7 +19,7 @@ presence_online(void **state)
assert_true(stbbr_received(
"<presence id='*'>"
"<status>online</status>"
"<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>"
));
}
@@ -36,7 +36,7 @@ presence_online_with_message(void **state)
assert_true(stbbr_received(
"<presence id='*'>"
"<status>Hi there</status>"
"<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>"
));
}
@@ -54,7 +54,7 @@ presence_away(void **state)
"<presence id='*'>"
"<show>away</show>"
"<status>away</status>"
"<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>"
));
}
@@ -72,7 +72,7 @@ presence_away_with_message(void **state)
"<presence id='*'>"
"<show>away</show>"
"<status>I'm not here for a bit</status>"
"<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>"
));
}
@@ -90,7 +90,7 @@ presence_xa(void **state)
"<presence id='*'>"
"<show>xa</show>"
"<status>xa</status>"
"<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>"
));
}
@@ -108,7 +108,7 @@ presence_xa_with_message(void **state)
"<presence id='*'>"
"<show>xa</show>"
"<status>Gone to the shops</status>"
"<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>"
));
}
@@ -126,7 +126,7 @@ presence_dnd(void **state)
"<presence id='*'>"
"<show>dnd</show>"
"<status>dnd</status>"
"<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>"
));
}
@@ -144,7 +144,7 @@ presence_dnd_with_message(void **state)
"<presence id='*'>"
"<show>dnd</show>"
"<status>Working</status>"
"<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>"
));
}
@@ -162,7 +162,7 @@ presence_chat(void **state)
"<presence id='*'>"
"<show>chat</show>"
"<status>chat</status>"
"<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>"
));
}
@@ -180,7 +180,7 @@ presence_chat_with_message(void **state)
"<presence id='*'>"
"<show>chat</show>"
"<status>Free to talk</status>"
"<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>"
));
}
@@ -197,7 +197,7 @@ presence_set_priority(void **state)
assert_true(stbbr_received(
"<presence id='*'>"
"<priority>25</priority>"
"<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>"
));
}
@@ -212,7 +212,7 @@ presence_includes_priority(void **state)
assert_true(stbbr_received(
"<presence id='*'>"
"<priority>25</priority>"
"<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>"
));
@@ -223,7 +223,7 @@ presence_includes_priority(void **state)
"<priority>25</priority>"
"<show>chat</show>"
"<status>Free to talk</status>"
"<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>"
));
}
@@ -239,7 +239,7 @@ presence_keeps_status(void **state)
"<presence id='*'>"
"<show>chat</show>"
"<status>Free to talk</status>"
"<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>"
));
@@ -250,7 +250,7 @@ presence_keeps_status(void **state)
"<show>chat</show>"
"<status>Free to talk</status>"
"<priority>25</priority>"
"<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>"
));
}