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Improved ratchet persist

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This commit is contained in:
Mark Qvist 2025-04-17 14:25:24 +02:00
parent 1dbb1a6a35
commit a0f0d73204
1 changed files with 5 additions and 1 deletions
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6
RNS/Destination.py
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@ -210,11 +210,14 @@ class Destination:
def _persist_ratchets(self):
try:
with self.ratchet_file_lock:
temp_write_path = self.ratchets_path+".tmp"
packed_ratchets = umsgpack.packb(self.ratchets)
persisted_data = {"signature": self.sign(packed_ratchets), "ratchets": packed_ratchets}
ratchets_file = open(self.ratchets_path, "wb")
ratchets_file = open(temp_write_path, "wb")
ratchets_file.write(umsgpack.packb(persisted_data))
ratchets_file.close()
os.unlink(self.ratchets_path)
os.rename(temp_write_path, self.ratchets_path)
except Exception as e:
self.ratchets = None
self.ratchets_path = None
@ -458,6 +461,7 @@ class Destination:
self.ratchets_path = None
RNS.trace_exception(e)
raise OSError("Could not read ratchet file contents for "+str(self)+". The contained exception was: "+str(e), RNS.LOG_ERROR)
else:
RNS.log("No existing ratchet data found, initialising new ratchet file for "+str(self), RNS.LOG_DEBUG)
self.ratchets = []