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-rw-r--r--plugins/mod_mam/mod_mam.lua74
1 files changed, 43 insertions, 31 deletions
diff --git a/plugins/mod_mam/mod_mam.lua b/plugins/mod_mam/mod_mam.lua
index 94bedbb1..a8c2689d 100644
--- a/plugins/mod_mam/mod_mam.lua
+++ b/plugins/mod_mam/mod_mam.lua
@@ -33,7 +33,7 @@ local is_stanza = st.is_stanza;
local tostring = tostring;
local time_now = os.time;
local m_min = math.min;
-local timestamp, timestamp_parse = require "util.datetime".datetime, require "util.datetime".parse;
+local timestamp, timestamp_parse, datestamp = import( "util.datetime", "datetime", "parse", "date");
local default_max_items, max_max_items = 20, module:get_option_number("max_archive_query_results", 50);
local strip_tags = module:get_option_set("dont_archive_namespaces", { "http://jabber.org/protocol/chatstates" });
@@ -46,13 +46,8 @@ if not archive.find then
end
local use_total = module:get_option_boolean("mam_include_total", true);
-local cleanup;
-
-local function schedule_cleanup(username)
- if cleanup and not cleanup[username] then
- table.insert(cleanup, username);
- cleanup[username] = true;
- end
+function schedule_cleanup()
+ -- replaced by non-noop later if cleanup is enabled
end
-- Handle prefs.
@@ -96,7 +91,6 @@ module:hook("iq-set/self/"..xmlns_mam..":query", function(event)
local qid = query.attr.queryid;
get_prefs(origin.username, true);
- schedule_cleanup(origin.username);
-- Search query parameters
local qwith, qstart, qend;
@@ -212,6 +206,7 @@ end
local function shall_store(user, who)
-- TODO Cache this?
if not um.user_exists(user, host) then
+ module:log("debug", "%s@%s does not exist", user, host)
return false;
end
local prefs = get_prefs(user);
@@ -329,6 +324,9 @@ module:hook("pre-message/full", strip_stanza_id_after_other_events, -1);
local cleanup_after = module:get_option_string("archive_expires_after", "1w");
local cleanup_interval = module:get_option_number("archive_cleanup_interval", 4 * 60 * 60);
if cleanup_after ~= "never" then
+ local cleanup_storage = module:open_store("archive_cleanup");
+ local cleanup_map = module:open_store("archive_cleanup", "map");
+
local day = 86400;
local multipliers = { d = day, w = day * 7, m = 31 * day, y = 365.2425 * day };
local n, m = cleanup_after:lower():match("(%d+)%s*([dwmy]?)");
@@ -346,33 +344,47 @@ if cleanup_after ~= "never" then
return false;
end
- -- Set of known users to do message expiry for
- -- Populated either below or when new messages are added
- cleanup = {};
+ -- For each day, store a set of users that have new messages. To expire
+ -- messages, we collect the union of sets of users from dates that fall
+ -- outside the cleanup range.
- -- Iterating over users is not supported by all authentication modules
- -- Catch and ignore error if not supported
- pcall(function ()
- -- If this works, then we schedule cleanup for all known users on startup
- for user in um.users(module.host) do
- schedule_cleanup(user);
- end
- end);
+ function schedule_cleanup(username, date)
+ cleanup_map:set(date or datestamp(), username, true);
+ end
- -- At odd intervals, delete old messages for one user
- module:add_timer(math.random(10, 60), function()
- local user = table.remove(cleanup, 1);
- if user then
- module:log("debug", "Removing old messages for user %q", user);
+ cleanup_runner = require "util.async".runner(function ()
+ local users = {};
+ local cut_off = datestamp(os.time() - cleanup_after);
+ for date in cleanup_storage:users() do
+ if date <= cut_off then
+ module:log("debug", "Messages from %q should be expired", date);
+ local messages_this_day = cleanup_storage:get(date);
+ if messages_this_day then
+ for user in pairs(messages_this_day) do
+ users[user] = true;
+ end
+ if date < cut_off then
+ -- Messages from the same day as the cut-off might not have expired yet,
+ -- but all earlier will have, so clear storage for those days.
+ cleanup_storage:set(date, nil);
+ end
+ end
+ end
+ end
+ local sum, num_users = 0, 0;
+ for user in pairs(users) do
local ok, err = archive:delete(user, { ["end"] = os.time() - cleanup_after; })
- if not ok then
- module:log("warn", "Could not expire archives for user %s: %s", user, err);
- elseif type(ok) == "number" then
- module:log("debug", "Removed %d messages", ok);
+ if ok then
+ num_users = num_users + 1;
+ sum = sum + (tonumber(ok) or 0);
end
- cleanup[user] = nil;
end
- return math.random(cleanup_interval, cleanup_interval * 2);
+ module:log("info", "Deleted %d expired messages for %d users", sum, num_users);
+ end);
+
+ cleanup_task = module:add_timer(1, function ()
+ cleanup_runner:run(true);
+ return cleanup_interval;
end);
else
module:log("debug", "Archive expiry disabled");