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-rw-r--r--plugins/muc/muc.lib.lua95
1 files changed, 62 insertions, 33 deletions
diff --git a/plugins/muc/muc.lib.lua b/plugins/muc/muc.lib.lua
index d09c768e..1e3a41e3 100644
--- a/plugins/muc/muc.lib.lua
+++ b/plugins/muc/muc.lib.lua
@@ -9,6 +9,7 @@
local select = select;
local pairs, ipairs = pairs, ipairs;
+local gettime = os.time;
local datetime = require "util.datetime";
local dataform = require "util.dataforms";
@@ -145,47 +146,75 @@ function room_mt:send_occupant_list(to)
end
end
end
-function room_mt:send_history(to, stanza)
- local history = self._data['history']; -- send discussion history
- if history then
- local x_tag = stanza and stanza:get_child("x", "http://jabber.org/protocol/muc");
- local history_tag = x_tag and x_tag:get_child("history", "http://jabber.org/protocol/muc");
- local maxchars = history_tag and tonumber(history_tag.attr.maxchars);
- if maxchars then maxchars = math.floor(maxchars); end
+local function parse_history(stanza)
+ local x_tag = stanza:get_child("x", "http://jabber.org/protocol/muc");
+ local history_tag = x_tag and x_tag:get_child("history", "http://jabber.org/protocol/muc");
+ if not history_tag then
+ return nil, 20, nil
+ end
- local maxstanzas = math.floor(history_tag and tonumber(history_tag.attr.maxstanzas) or #history);
- if not history_tag then maxstanzas = 20; end
+ local maxchars = tonumber(history_tag.attr.maxchars);
- local seconds = history_tag and tonumber(history_tag.attr.seconds);
- if seconds then seconds = datetime.datetime(os.time() - math.floor(seconds)); end
+ local maxstanzas = tonumber(history_tag.attr.maxstanzas);
- local since = history_tag and history_tag.attr.since;
- if since then since = datetime.parse(since); since = since and datetime.datetime(since); end
- if seconds and (not since or since < seconds) then since = seconds; end
+ -- messages received since the UTC datetime specified
+ local since = history_tag.attr.since;
+ if since then
+ since = datetime.parse(since);
+ end
- local n = 0;
- local charcount = 0;
+ -- messages received in the last "X" seconds.
+ local seconds = tonumber(history_tag.attr.seconds);
+ if seconds then
+ seconds = gettime() - seconds
+ if since then
+ since = math.max(since, seconds);
+ else
+ since = seconds;
+ end
+ end
- for i=#history,1,-1 do
- local entry = history[i];
- if maxchars then
- if not entry.chars then
- entry.stanza.attr.to = "";
- entry.chars = #tostring(entry.stanza);
- end
- charcount = charcount + entry.chars + #to;
- if charcount > maxchars then break; end
+ return maxchars, maxstanzas, since
+end
+-- Get history for 'to'
+function room_mt:get_history(to, maxchars, maxstanzas, since)
+ local history = self._data['history']; -- send discussion history
+ if not history then return end
+ local history_len = #history
+
+ maxstanzas = maxstanzas or history_len
+ local n = 0;
+ local charcount = 0;
+ for i=history_len,1,-1 do
+ local entry = history[i];
+ if maxchars then
+ if not entry.chars then
+ entry.stanza.attr.to = "";
+ entry.chars = #tostring(entry.stanza);
end
- if since and since > entry.stamp then break; end
- if n + 1 > maxstanzas then break; end
- n = n + 1;
- end
- for i=#history-n+1,#history do
- local msg = history[i].stanza;
- msg.attr.to = to;
- self:_route_stanza(msg);
+ charcount = charcount + entry.chars + #to;
+ if charcount > maxchars then break; end
end
+ if since and since > entry.stamp then break; end
+ if n + 1 > maxstanzas then break; end
+ n = n + 1;
+ end
+
+ local i = history_len-n+1
+ return function()
+ if i > history_len then return nil end
+ local entry = history[i]
+ local msg = entry.stanza
+ msg.attr.to = to;
+ i = i + 1
+ return msg
+ end
+end
+function room_mt:send_history(to, stanza)
+ local maxchars, maxstanzas, since = parse_history(stanza)
+ for msg in self:get_history(to, maxchars, maxstanzas, since) do
+ self:_route_stanza(msg);
end
end
function room_mt:send_subject(to)