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sebb pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/incubator-ponymail.git
The following commit(s) were added to refs/heads/master by this push:
new 17ddb85 cluster generator does *not* include the lid in the hash
17ddb85 is described below
commit 17ddb850b84995cd7150b27966891a646b744351
Author: Sebb <s...@apache.org>
AuthorDate: Tue Mar 6 00:53:25 2018 +0000
cluster generator does *not* include the lid in the hash
---
tools/generators.py | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/tools/generators.py b/tools/generators.py
index 63cc85e..d25f126 100644
--- a/tools/generators.py
+++ b/tools/generators.py
@@ -95,6 +95,8 @@ def medium(msg, body, lid, attachments):
# This is the recommended generator for cluster setups.
# Unlike 'medium', this only makes use of the Date: header and not the
archived-at,
# as the archived-at may change from node to node (and will change if not in
the raw mbox file)
+# Also the lid is not included in the hash, so the hash does not change if the
lid is overridden
+#
def cluster(msg, body, lid, attachments):
"""
Use data that is guaranteed to be the same across cluster setups
@@ -104,7 +106,6 @@ def cluster(msg, body, lid, attachments):
The following message fields are concatenated to form the hash input:
- body as is if bytes else encoded ascii, ignoring invalid characters; if
the body is null it is treated as an empty string
(currently trailing whitespace is dropped)
- - lid
- Message-ID (if present)
- Date header converted to YYYY/MM/DD HH:MM:SS (UTC)
or "(null)" if the date does not exist or cannot be converted
@@ -112,6 +113,8 @@ def cluster(msg, body, lid, attachments):
- subject, encoded as ascii (if the field exists)
- the hashes of any attachments
+ Note: the lid is not included in the hash.
+
Parameters:
msg - the parsed message
body - the parsed text content
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