prosody-modules
c1b0f0c33c6a
mod_archive/mod_archive.lua

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mod_archive/mod_archive.lua @ 735:c1b0f0c33c6a

mod_archive: Fix hour offset in stored message date os.date expect a timestamp in local time, that is subject to daylight saving. But since we pass an UTC timestamp to os.date one hour is (wrongly) added in the summer. The only sensible thing is to call the os.date only once with the ! parametter. And then parsing this sting to get the utc_timestamp. Calling os.date with an UTC timestamp is not possible, and calling os.date twice without timestamp could give different results.
author Olivier Goffart <ogoffart@woboq.com>
date Wed, 04 Jul 2012 13:49:57 +0200
parent 632:dcb8e7d2c711
child 736:b031831b2ac0
comparison
equal deleted inserted replaced
734:81de1e446bfe 735:c1b0f0c33c6a
35 35
36 local function store_prefs(data, node, host) 36 local function store_prefs(data, node, host)
37 dm.store(node, host, PREFS_DIR, st.preserialize(data)); 37 dm.store(node, host, PREFS_DIR, st.preserialize(data));
38 end 38 end
39 39
40 local function os_date()
41 return os.date("!*t");
42 end
43
44 local date_time = datetime.datetime; 40 local date_time = datetime.datetime;
45
46 local function date_format(s)
47 return os.date("%Y-%m-%dT%H:%M:%SZ", s);
48 end
49 41
50 local function date_parse(s) 42 local function date_parse(s)
51 local year, month, day, hour, min, sec = s:match("(....)-?(..)-?(..)T(..):(..):(..)Z"); 43 local year, month, day, hour, min, sec = s:match("(....)-?(..)-?(..)T(..):(..):(..)Z");
52 return os.time({year=year, month=month, day=day, hour=hour, min=min, sec=sec}); 44 return os.time({year=year, month=month, day=day, hour=hour, min=min, sec=sec});
53 end 45 end
94 local body = msg:child_with_name("body"); 86 local body = msg:child_with_name("body");
95 local thread = msg:child_with_name("thread"); 87 local thread = msg:child_with_name("thread");
96 local data = dm.list_load(node, host, ARCHIVE_DIR); 88 local data = dm.list_load(node, host, ARCHIVE_DIR);
97 local tag = isfrom and "from" or "to"; 89 local tag = isfrom and "from" or "to";
98 local with = isfrom and msg.attr.to or msg.attr.from; 90 local with = isfrom and msg.attr.to or msg.attr.from;
99 local utc = os_date(); 91 local utc_datetime = date_time();
100 local utc_secs = os.time(utc); 92 local utc_secs = date_parse(utc_datetime);
101 local utc_datetime = date_format(utc_secs);
102 if data then 93 if data then
103 -- The collection list are in REVERSE chronological order 94 -- The collection list are in REVERSE chronological order
104 for k, v in ipairs(data) do 95 for k, v in ipairs(data) do
105 local collection = st.deserialize(v); 96 local collection = st.deserialize(v);
106 local do_save = function() 97 local do_save = function()