yakumo.izuru/suika
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chathistory: Fix truncated backlog due to timezones

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Because msgstore_fs writes logs in localtime, the CHATHISTORY timestamps
(UTC) must be converted to localtime prior to filtering ranges ensure
the right range is sent back to the client.

Prior to this patch, the iteration back from the BEFORE time failed to
load the hours between midnight UTC and midnight localtime in each day's
logged messages. This is because the final time to be considered in a
day's log file (the "start" time) reuses the previous start time's
locale:

    start = time.Date(year, month, day, 0, 0, 0, 0, start.Location()).Add(-1)

By converting the original start and end from the CHATHISTORY commands
to localtime in Load*Time and ListTargets, we ensure we read through
midnight each day.

git-svn-id: file:///srv/svn/repo/suika/trunk@610 f0ae65fe-ee39-954e-97ec-027ff2717ef4
This commit is contained in:
alex 2021-10-07 09:57:42 +00:00
parent c8179c1537
commit 700f5d91c6
1 changed files with 6 additions and 0 deletions
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6
msgstore_fs.go
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@ -383,6 +383,8 @@ func (ms *fsMessageStore) parseMessagesAfter(network *network, entity string, re
}
func (ms *fsMessageStore) LoadBeforeTime(network *network, entity string, start time.Time, end time.Time, limit int) ([]*irc.Message, error) {
start = start.In(time.Local)
end = end.In(time.Local)
history := make([]*irc.Message, limit)
remaining := limit
tries := 0
@ -406,6 +408,8 @@ func (ms *fsMessageStore) LoadBeforeTime(network *network, entity string, start
}
func (ms *fsMessageStore) LoadAfterTime(network *network, entity string, start time.Time, end time.Time, limit int) ([]*irc.Message, error) {
start = start.In(time.Local)
end = end.In(time.Local)
var history []*irc.Message
remaining := limit
tries := 0
@ -472,6 +476,8 @@ func (ms *fsMessageStore) LoadLatestID(network *network, entity, id string, limi
}
func (ms *fsMessageStore) ListTargets(network *network, start, end time.Time, limit int) ([]chatHistoryTarget, error) {
start = start.In(time.Local)
end = end.In(time.Local)
rootPath := filepath.Join(ms.root, escapeFilename(network.GetName()))
root, err := os.Open(rootPath)
if err != nil {