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fix(multiplayer): validate client revisions

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This commit is contained in:
Josh Creek
2026-09-01 21:59:32 +01:00
parent f491725144
commit a60c1a097e
5 changed files with 35 additions and 4 deletions
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Game/scripts/matchmaking_state.gd
+10 -2
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@@ -49,7 +49,7 @@ func begin_queue(new_ticket_id: String, new_playlist: String) -> bool:
func apply_ticket_update(update: Dictionary) -> bool:
if not _has_string(update, "ticket_id") or not update.has("revision") or not update.has("state"):
if not _has_string(update, "ticket_id") or not update.has("revision") or not _valid_revision(update["revision"]) or not update.has("state"):
return _request_resync(self.ticket_id)
if ticket_id.is_empty() or String(update["ticket_id"]) != ticket_id:
return _request_resync(self.ticket_id)
@@ -94,7 +94,7 @@ func apply_ticket_update(update: Dictionary) -> bool:
func apply_proposal_update(update: Dictionary) -> bool:
if not _has_string(update, "proposal_id") or not update.has("revision") or not update.has("state"):
if not _has_string(update, "proposal_id") or not update.has("revision") or not _valid_revision(update["revision"]) or not update.has("state"):
return _request_resync(proposal_id)
var incoming_id := String(update["proposal_id"])
if proposal_id.is_empty():
@@ -270,3 +270,11 @@ func _is_legal_ticket_transition(from: String, to: String) -> bool:
func _has_string(value: Dictionary, key: String) -> bool:
return value.has(key) and value[key] is String and not String(value[key]).is_empty()
func _valid_revision(value: Variant) -> bool:
if value is int:
return int(value) >= 0
if value is float:
return is_finite(float(value)) and float(value) >= 0.0 and float(value) == floor(float(value))
return false