diff options
Diffstat (limited to 'plugins/mod_mam')
| -rw-r--r-- | plugins/mod_mam/mod_mam.lua | 246 |
1 files changed, 210 insertions, 36 deletions
diff --git a/plugins/mod_mam/mod_mam.lua b/plugins/mod_mam/mod_mam.lua index e7d89a95..afeef82b 100644 --- a/plugins/mod_mam/mod_mam.lua +++ b/plugins/mod_mam/mod_mam.lua @@ -1,7 +1,7 @@ -- Prosody IM -- Copyright (C) 2008-2017 Matthew Wild -- Copyright (C) 2008-2017 Waqas Hussain --- Copyright (C) 2011-2017 Kim Alvefur +-- Copyright (C) 2011-2021 Kim Alvefur -- -- This project is MIT/X11 licensed. Please see the -- COPYING file in the source package for more information. @@ -10,6 +10,7 @@ -- local xmlns_mam = "urn:xmpp:mam:2"; +local xmlns_mam_ext = "urn:xmpp:mam:2#extended"; local xmlns_delay = "urn:xmpp:delay"; local xmlns_forward = "urn:xmpp:forward:0"; local xmlns_st_id = "urn:xmpp:sid:0"; @@ -25,6 +26,7 @@ local jid_bare = require "util.jid".bare; local jid_split = require "util.jid".split; local jid_prepped_split = require "util.jid".prepped_split; local dataform = require "util.dataforms".new; +local get_form_type = require "util.dataforms".get_type; local host = module.host; local rm_load_roster = require "core.rostermanager".load_roster; @@ -40,6 +42,11 @@ local strip_tags = module:get_option_set("dont_archive_namespaces", { "http://ja local archive_store = module:get_option_string("archive_store", "archive"); local archive = module:open_store(archive_store, "archive"); +local cleanup_after = module:get_option_string("archive_expires_after", "1w"); +local cleanup_interval = module:get_option_number("archive_cleanup_interval", 4 * 60 * 60); +local archive_item_limit = module:get_option_number("storage_archive_item_limit", archive.caps and archive.caps.quota or 1000); +local archive_truncate = math.floor(archive_item_limit * 0.99); + if not archive.find then error("mod_"..(archive._provided_by or archive.name and "storage_"..archive.name).." does not support archiving\n" .."See https://prosody.im/doc/storage and https://prosody.im/doc/archiving for more information"); @@ -76,6 +83,16 @@ local query_form = dataform { { name = "end"; type = "text-single"; }; }; +if archive.caps and archive.caps.full_id_range then + table.insert(query_form, { name = "before-id"; type = "text-single"; }); + table.insert(query_form, { name = "after-id"; type = "text-single"; }); +end + +if archive.caps and archive.caps.ids then + table.insert(query_form, { name = "ids"; type = "list-multi"; }); +end + + -- Serve form module:hook("iq-get/self/"..xmlns_mam..":query", function(event) local origin, stanza = event.origin, event.stanza; @@ -95,16 +112,25 @@ module:hook("iq-set/self/"..xmlns_mam..":query", function(event) get_prefs(origin.username, true); -- Search query parameters - local qwith, qstart, qend; + local qwith, qstart, qend, qbefore, qafter, qids; local form = query:get_child("x", "jabber:x:data"); if form then - local err; + local form_type, err = get_form_type(form); + if not form_type then + origin.send(st.error_reply(stanza, "modify", "bad-request", "Invalid dataform: "..err)); + return true; + elseif form_type ~= xmlns_mam then + origin.send(st.error_reply(stanza, "modify", "bad-request", "Unexpected FORM_TYPE, expected '"..xmlns_mam.."'")); + return true; + end form, err = query_form:data(form); if err then origin.send(st.error_reply(stanza, "modify", "bad-request", select(2, next(err)))); return true; end qwith, qstart, qend = form["with"], form["start"], form["end"]; + qbefore, qafter = form["before-id"], form["after-id"]; + qids = form["ids"]; qwith = qwith and jid_bare(qwith); -- dataforms does jidprep end @@ -117,30 +143,45 @@ module:hook("iq-set/self/"..xmlns_mam..":query", function(event) qstart, qend = vstart, vend; end - module:log("debug", "Archive query, id %s with %s from %s until %s", - tostring(qid), qwith or "anyone", - qstart and timestamp(qstart) or "the dawn of time", - qend and timestamp(qend) or "now"); - -- RSM stuff local qset = rsm.get(query); local qmax = m_min(qset and qset.max or default_max_items, max_max_items); local reverse = qset and qset.before or false; - local before, after = qset and qset.before, qset and qset.after; + local before, after = qset and qset.before or qbefore, qset and qset.after or qafter; if type(before) ~= "string" then before = nil; end + + module:log("debug", "Archive query by %s id=%s with=%s when=%s...%s rsm=%q", + origin.username, + qid or stanza.attr.id, + qwith or "*", + qstart and timestamp(qstart) or "", + qend and timestamp(qend) or "", + qset); + + -- A reverse query needs to be flipped + local flip = reverse; + -- A flip-page query needs to be the opposite of that. + if query:get_child("flip-page") then flip = not flip end + -- Load all the data! local data, err = archive:find(origin.username, { start = qstart; ["end"] = qend; -- Time range with = qwith; limit = qmax == 0 and 0 or qmax + 1; before = before; after = after; + ids = qids; reverse = reverse; total = use_total or qmax == 0; }); if not data then - origin.send(st.error_reply(stanza, "cancel", "internal-server-error", err)); + module:log("debug", "Archive query id=%s failed: %s", qid or stanza.attr.id, err); + if err == "item-not-found" then + origin.send(st.error_reply(stanza, "modify", "item-not-found")); + else + origin.send(st.error_reply(stanza, "cancel", "internal-server-error")); + end return true; end local total = tonumber(err); @@ -175,27 +216,64 @@ module:hook("iq-set/self/"..xmlns_mam..":query", function(event) if not first then first = id; end last = id; - if reverse then + if flip then results[count] = fwd_st; else origin.send(fwd_st); end end - if reverse then + if flip then for i = #results, 1, -1 do origin.send(results[i]); end + end + if reverse then first, last = last, first; end - -- That's all folks! - module:log("debug", "Archive query %s completed", tostring(qid)); - origin.send(st.reply(stanza) - :tag("fin", { xmlns = xmlns_mam, queryid = qid, complete = complete }) + :tag("fin", { xmlns = xmlns_mam, complete = complete }) :add_child(rsm.generate { first = first, last = last, count = total })); + + -- That's all folks! + module:log("debug", "Archive query id=%s completed, %d items returned", qid or stanza.attr.id, complete and count or count - 1); + return true; +end); + +module:hook("iq-get/self/"..xmlns_mam..":metadata", function (event) + local origin, stanza = event.origin, event.stanza; + + local reply = st.reply(stanza):tag("metadata", { xmlns = xmlns_mam }); + + do + local first = archive:find(origin.username, { limit = 1 }); + if not first then + origin.send(st.error_reply(stanza, "cancel", "internal-server-error")); + return true; + end + + local id, _, when = first(); + if id then + reply:tag("start", { id = id, timestamp = timestamp(when) }):up(); + end + end + + do + local last = archive:find(origin.username, { limit = 1, reverse = true }); + if not last then + origin.send(st.error_reply(stanza, "cancel", "internal-server-error")); + return true; + end + + local id, _, when = last(); + if id then + reply:tag("end", { id = id, timestamp = timestamp(when) }):up(); + end + end + + origin.send(reply); return true; end); @@ -213,13 +291,13 @@ local function shall_store(user, who) end local prefs = get_prefs(user); local rule = prefs[who]; - module:log("debug", "%s's rule for %s is %s", user, who, tostring(rule)); + module:log("debug", "%s's rule for %s is %s", user, who, rule); if rule ~= nil then return rule; end -- Below could be done by a metatable local default = prefs[false]; - module:log("debug", "%s's default rule is %s", user, tostring(default)); + module:log("debug", "%s's default rule is %s", user, default); if default == "roster" then return has_in_roster(user, who); end @@ -242,16 +320,75 @@ local function strip_stanza_id(stanza, user) return stanza; end +local function should_store(stanza, c2s) --> boolean, reason: string + local st_type = stanza.attr.type or "normal"; + -- FIXME pass direction of stanza and use that along with bare/full JID addressing + -- for more accurate MUC / type=groupchat check + + if st_type == "headline" then + -- Headline messages are ephemeral by definition + return false, "headline"; + end + if st_type == "error" and not c2s then + -- Store delivery failure notifications so you know if your own messages were not delivered + return true, "bounce"; + end + if st_type == "groupchat" then + -- MUC messages always go to the full JID, usually archived by the MUC + return false, "groupchat"; + end + if stanza:get_child("no-store", "urn:xmpp:hints") + or stanza:get_child("no-permanent-store", "urn:xmpp:hints") then + -- XXX Experimental XEP + return false, "hint"; + end + if stanza:get_child("store", "urn:xmpp:hints") then + return true, "hint"; + end + if stanza:get_child("body") then + return true, "body"; + end + if stanza:get_child("subject") then + -- XXX Who would send a message with a subject but without a body? + return true, "subject"; + end + if stanza:get_child("encryption", "urn:xmpp:eme:0") then + -- Since we can't know what an encrypted message contains, we assume it's important + -- XXX Experimental XEP + return true, "encrypted"; + end + if stanza:get_child(nil, "urn:xmpp:receipts") then + -- If it's important enough to ask for a receipt then it's important enough to archive + -- and the same applies to the receipt + return true, "receipt"; + end + if stanza:get_child(nil, "urn:xmpp:chat-markers:0") then + -- XXX Experimental XEP + return true, "marker"; + end + if stanza:get_child("x", "jabber:x:conference") + or stanza:find("{http://jabber.org/protocol/muc#user}x/invite") then + return true, "invite"; + end + if stanza:get_child(nil, "urn:xmpp:jingle-message:0") then + -- XXX Experimental XEP + return true, "jingle call"; + end + + -- The IM-NG thing to do here would be to return `not st_to_full` + -- One day ... + return false, "default"; +end + -- Handle messages local function message_handler(event, c2s) local origin, stanza = event.origin, event.stanza; local log = c2s and origin.log or module._log; - local orig_type = stanza.attr.type or "normal"; local orig_from = stanza.attr.from; local orig_to = stanza.attr.to or orig_from; -- Stanza without 'to' are treated as if it was to their own bare jid - -- Whos storage do we put it in? + -- Whose storage do we put it in? local store_user = c2s and origin.username or jid_split(orig_to); -- And who are they chatting with? local with = jid_bare(c2s and orig_to or orig_from); @@ -259,21 +396,12 @@ local function message_handler(event, c2s) -- Filter out <stanza-id> that claim to be from us event.stanza = strip_stanza_id(stanza, store_user); - -- We store chat messages or normal messages that have a body - if not(orig_type == "chat" or (orig_type == "normal" and stanza:get_child("body")) ) then - log("debug", "Not archiving stanza: %s (type)", stanza:top_tag()); + local should, why = should_store(stanza, c2s); + if not should then + log("debug", "Not archiving stanza: %s (%s)", stanza:top_tag(), why); return; end - -- or if hints suggest we shouldn't - if not stanza:get_child("store", "urn:xmpp:hints") then -- No hint telling us we should store - if stanza:get_child("no-permanent-store", "urn:xmpp:hints") - or stanza:get_child("no-store", "urn:xmpp:hints") then -- Hint telling us we should NOT store - log("debug", "Not archiving stanza: %s (hint)", stanza:top_tag()); - return; - end - end - local clone_for_storage; if not strip_tags:empty() then clone_for_storage = st.clone(stanza); @@ -294,10 +422,31 @@ local function message_handler(event, c2s) -- Check with the users preferences if shall_store(store_user, with) then - log("debug", "Archiving stanza: %s", stanza:top_tag()); + log("debug", "Archiving stanza: %s (%s)", stanza:top_tag(), why); -- And stash it - local ok, err = archive:append(store_user, nil, clone_for_storage, time_now(), with); + local time = time_now(); + local ok, err = archive:append(store_user, nil, clone_for_storage, time, with); + if not ok and err == "quota-limit" then + if type(cleanup_after) == "number" then + module:log("debug", "User '%s' over quota, cleaning archive", store_user); + local cleaned = archive:delete(store_user, { + ["end"] = (os.time() - cleanup_after); + }); + if cleaned then + ok, err = archive:append(store_user, nil, clone_for_storage, time, with); + end + end + if not ok and (archive.caps and archive.caps.truncate) then + module:log("debug", "User '%s' over quota, truncating archive", store_user); + local truncated = archive:delete(store_user, { + truncate = archive_truncate; + }); + if truncated then + ok, err = archive:append(store_user, nil, clone_for_storage, time, with); + end + end + end if ok then local clone_for_other_handlers = st.clone(stanza); local id = ok; @@ -325,8 +474,25 @@ end module:hook("pre-message/bare", strip_stanza_id_after_other_events, -1); 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); +-- Catch messages not stored by mod_offline and mark them as stored if they +-- have been archived. This would generally only happen if mod_offline is +-- disabled. Otherwise the message would generate a delivery failure report, +-- which would not be accurate because it has been archived. +module:hook("message/offline/handle", function(event) + local stanza = event.stanza; + local user = event.username .. "@" .. host; + if stanza:get_child_with_attr("stanza-id", xmlns_st_id, "by", user) then + return true; + end +end, -2); + +-- Don't broadcast offline messages to clients that have queried the archive. +module:hook("message/offline/broadcast", function (event) + if event.origin.mam_requested then + return true; + end +end); + if cleanup_after ~= "never" then local cleanup_storage = module:open_store("archive_cleanup"); local cleanup_map = module:open_store("archive_cleanup", "map"); @@ -361,9 +527,11 @@ if cleanup_after ~= "never" then last_date:set(username, date); end end + local cleanup_time = module:measure("cleanup", "times"); local async = require "util.async"; cleanup_runner = async.runner(function () + local cleanup_done = cleanup_time(); local users = {}; local cut_off = datestamp(os.time() - cleanup_after); for date in cleanup_storage:users() do @@ -397,6 +565,7 @@ if cleanup_after ~= "never" then wait(); end module:log("info", "Deleted %d expired messages for %d users", sum, num_users); + cleanup_done(); end); cleanup_task = module:add_timer(1, function () @@ -417,8 +586,13 @@ module:hook("pre-message/full", c2s_message_handler, 0); module:hook("message/bare", message_handler, 0); module:hook("message/full", message_handler, 0); +local advertise_extended = archive.caps and archive.caps.full_id_range and archive.caps.ids; + module:hook("account-disco-info", function(event) (event.reply or event.stanza):tag("feature", {var=xmlns_mam}):up(); + if advertise_extended then + (event.reply or event.stanza):tag("feature", {var=xmlns_mam_ext}):up(); + end (event.reply or event.stanza):tag("feature", {var=xmlns_st_id}):up(); end); |