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Support stable identifiers for MSC2285: private read receipts. (#13273)

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This adds support for the stable identifiers of MSC2285 while
continuing to support the unstable identifiers behind the configuration
flag. These will be removed in a future version.
This commit is contained in:
Šimon Brandner 2022-08-05 17:09:33 +02:00 • committed by GitHub
parent e2ed1b7155
commit ab18441573
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14 changed files with 246 additions and 94 deletions
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36
synapse/handlers/receipts.py
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@ -163,7 +163,10 @@ class ReceiptsHandler:
if not is_new:
return
if self.federation_sender and receipt_type != ReceiptTypes.READ_PRIVATE:
if self.federation_sender and receipt_type not in (
ReceiptTypes.READ_PRIVATE,
ReceiptTypes.UNSTABLE_READ_PRIVATE,
):
await self.federation_sender.send_read_receipt(receipt)
@ -203,24 +206,38 @@ class ReceiptEventSource(EventSource[int, JsonDict]):
for event_id, orig_event_content in room.get("content", {}).items():
event_content = orig_event_content
# If there are private read receipts, additional logic is necessary.
if ReceiptTypes.READ_PRIVATE in event_content:
if (
ReceiptTypes.READ_PRIVATE in event_content
or ReceiptTypes.UNSTABLE_READ_PRIVATE in event_content
):
# Make a copy without private read receipts to avoid leaking
# other user's private read receipts..
event_content = {
receipt_type: receipt_value
for receipt_type, receipt_value in event_content.items()
if receipt_type != ReceiptTypes.READ_PRIVATE
if receipt_type
not in (
ReceiptTypes.READ_PRIVATE,
ReceiptTypes.UNSTABLE_READ_PRIVATE,
)
}
# Copy the current user's private read receipt from the
# original content, if it exists.
user_private_read_receipt = orig_event_content[
ReceiptTypes.READ_PRIVATE
].get(user_id, None)
user_private_read_receipt = orig_event_content.get(
ReceiptTypes.READ_PRIVATE, {}
).get(user_id, None)
if user_private_read_receipt:
event_content[ReceiptTypes.READ_PRIVATE] = {
user_id: user_private_read_receipt
}
user_unstable_private_read_receipt = orig_event_content.get(
ReceiptTypes.UNSTABLE_READ_PRIVATE, {}
).get(user_id, None)
if user_unstable_private_read_receipt:
event_content[ReceiptTypes.UNSTABLE_READ_PRIVATE] = {
user_id: user_unstable_private_read_receipt
}
# Include the event if there is at least one non-private read
# receipt or the current user has a private read receipt.
@ -256,10 +273,9 @@ class ReceiptEventSource(EventSource[int, JsonDict]):
room_ids, from_key=from_key, to_key=to_key
)
if self.config.experimental.msc2285_enabled:
events = ReceiptEventSource.filter_out_private_receipts(
events, user.to_string()
)
events = ReceiptEventSource.filter_out_private_receipts(
events, user.to_string()
)
return events, to_key