--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/mod_mam_archive/mod_mam_archive.lua Mon Jul 14 23:00:13 2014 +0200
@@ -0,0 +1,305 @@
+-- Prosody IM
+--
+-- This project is MIT/X11 licensed. Please see the
+-- COPYING file in the source package for more information.
+--
+local get_prefs = module:require"mod_mam/mamprefs".get;
+local set_prefs = module:require"mod_mam/mamprefs".set;
+local rsm = module:require "mod_mam/rsm";
+local jid_bare = require "util.jid".bare;
+local jid_prep = require "util.jid".prep;
+local date_parse = require "util.datetime".parse;
+
+local st = require "util.stanza";
+local archive_store = "archive2";
+local archive = module:open_store(archive_store, "archive");
+local global_default_policy = module:get_option("default_archive_policy", false);
+local default_max_items, max_max_items = 20, module:get_option_number("max_archive_query_results", 50);
+local conversation_interval = module:get_option_number("archive_conversation_interval", 86400);
+
+-- Feature discovery
+local xmlns_archive = "urn:xmpp:archive"
+local feature_archive = st.stanza('feature', {xmlns=xmlns_archive});
+feature_archive:tag('optional');
+if(global_default_policy) then
+ feature_archive:tag('default');
+end
+module:add_extension(feature_archive);
+module:add_feature("urn:xmpp:archive:auto");
+module:add_feature("urn:xmpp:archive:manage");
+module:add_feature("urn:xmpp:archive:pref");
+module:add_feature("http://jabber.org/protocol/rsm");
+-- --------------------------------------------------
+
+local function os_date()
+ return os.date("!*t");
+end
+local function date_format(s)
+ return os.date("%Y-%m-%dT%H:%M:%SZ", s);
+end
+
+local function prefs_to_stanza(prefs)
+ local prefstanza = st.stanza("pref", { xmlns='urn:xmpp:archive' });
+ local default = prefs[false] ~= nil and prefs[false] or global_default_policy;
+
+ prefstanza:tag('default', {otr='oppose', save=default and 'true' or 'false'}):up();
+ prefstanza:tag('method', {type='auto', use='concede'}):up();
+ prefstanza:tag('method', {type='local', use='concede'}):up();
+ prefstanza:tag('method', {type='manual', use='concede'}):up();
+
+ for jid, choice in pairs(prefs) do
+ if jid then
+ prefstanza:tag('item', {jid=jid, otr='prefer', save=choice and 'message' or 'false' }):up()
+ end
+ end
+
+ return prefstanza;
+end
+local function prefs_from_stanza(stanza)
+ local current_prefs = get_prefs(origin.username);
+
+ -- "default" | "item" | "session" | "method"
+ for elem in stanza:children() do
+ if elem.name == "default" then
+ current_prefs[false] = elem.attr['save'] == 'true';
+ elseif elem.name == "item" then
+ current_prefs[elem.attr['jid']] = not elem.attr['save'] == 'false';
+ elseif elem.name == "session" then
+ module:log("info", "element is not supported: " .. tostring(elem));
+-- local found = false;
+-- for child in data:children() do
+-- if child.name == elem.name and child.attr["thread"] == elem.attr["thread"] then
+-- for k, v in pairs(elem.attr) do
+-- child.attr[k] = v;
+-- end
+-- found = true;
+-- break;
+-- end
+-- end
+-- if not found then
+-- data:tag(elem.name, elem.attr):up();
+-- end
+ elseif elem.name == "method" then
+ module:log("info", "element is not supported: " .. tostring(elem));
+-- local newpref = stanza.tags[1]; -- iq:pref
+-- for _, e in ipairs(newpref.tags) do
+-- -- if e.name ~= "method" then continue end
+-- local found = false;
+-- for child in data:children() do
+-- if child.name == "method" and child.attr["type"] == e.attr["type"] then
+-- child.attr["use"] = e.attr["use"];
+-- found = true;
+-- break;
+-- end
+-- end
+-- if not found then
+-- data:tag(e.name, e.attr):up();
+-- end
+-- end
+ end
+ end
+end
+
+------------------------------------------------------------
+-- Preferences
+------------------------------------------------------------
+local function preferences_handler(event)
+ local origin, stanza = event.origin, event.stanza;
+ local user = origin.username;
+ local reply = st.reply(stanza);
+
+ if stanza.attr.type == "get" then
+ reply:add_child(prefs_to_stanza(get_prefs(user)));
+ end
+ if stanza.attr.type == "set" then
+ local new_prefs = stanza:get_child("pref", xmlns_archive);
+ if not new_prefs then return false; end
+
+ local prefs = prefs_from_stanza(stanza);
+ local ok, err = set_prefs(user, prefs);
+
+ if not ok then
+ return origin.send(st.error_reply(stanza, "cancel", "internal-server-error", "Error storing preferences: "..tostring(err)));
+ end
+ end
+ return origin.send(reply);
+end
+local function auto_handler(event)
+ local origin, stanza = event.origin, event.stanza;
+ if not stanza.attr['type'] == 'set' then return false; end
+
+ local user = origin.username;
+ local prefs = get_prefs(user);
+ local auto = stanza:get_child('auto', xmlns_archive);
+
+ prefs[false] = auto.attr['save'] ~= nil and auto.attr['save'] == 'true' or false;
+ set_prefs(user, prefs);
+
+ return origin.send(st.reply(stanza));
+end
+
+-- excerpt from mod_storage_sql2
+local function get_db()
+ local mod_sql = module:require("sql");
+ local params = module:get_option("sql");
+ local engine;
+
+ params = params or { driver = "SQLite3" };
+ if params.driver == "SQLite3" then
+ params.database = resolve_relative_path(prosody.paths.data or ".", params.database or "prosody.sqlite");
+ end
+
+ assert(params.driver and params.database, "Both the SQL driver and the database need to be specified");
+ engine = mod_sql:create_engine(params);
+ engine:set_encoding();
+
+ return engine;
+end
+
+------------------------------------------------------------
+-- Collections. In our case there is one conversation with each contact for the whole day for simplicity
+------------------------------------------------------------
+local function list_stanza_to_query(origin, list_el)
+ local sql = "SELECT `with`, `when` / ".. conversation_interval .." as `day`, COUNT(0) FROM `prosodyarchive` WHERE `host`=? AND `user`=? AND `store`=? ";
+ local args = {origin.host, origin.username, archive_store};
+
+ local with = list_el.attr['with'];
+ if with ~= nil then
+ sql = sql .. "AND `with` = ? ";
+ table.insert(args, jid_bare(with));
+ end
+
+ local after = list_el.attr['start'];
+ if after ~= nil then
+ sql = sql .. "AND `when` >= ?";
+ table.insert(args, date_parse(after));
+ end
+
+ local before = list_el.attr['end'];
+ if before ~= nil then
+ sql = sql .. "AND `when` <= ? ";
+ table.insert(args, date_parse(before));
+ end
+
+ sql = sql .. "GROUP BY `with`, `when` / ".. conversation_interval .." ORDER BY `when` / ".. conversation_interval .." ASC ";
+
+ local qset = rsm.get(list_el);
+ local limit = math.min(qset and qset.max or default_max_items, max_max_items);
+ sql = sql..'LIMIT ?';
+ table.insert(args, limit);
+
+ table.insert(args, 1, sql);
+ return args;
+end
+local function list_handler(event)
+ local db = get_db();
+ local origin, stanza = event.origin, event.stanza;
+ local reply = st.reply(stanza);
+
+ local query = list_stanza_to_query(origin, stanza.tags[1]);
+ local list = reply:tag('list', {xmlns=xmlns_archive});
+
+ for row in db:select(unpack(query)) do
+ list:tag('chat', {
+ xmlns=xmlns_archive,
+ with=row[1],
+ start=date_format(row[2] * conversation_interval),
+ version=row[3]
+ }):up();
+ end
+
+ origin.send(reply);
+ return true;
+end
+
+------------------------------------------------------------
+-- Message archive retrieval
+------------------------------------------------------------
+
+local function retrieve_handler(event)
+ local origin, stanza = event.origin, event.stanza;
+ local reply = st.reply(stanza);
+
+ local retrieve = stanza:get_child('retrieve', xmlns_archive);
+
+ local qwith = retrieve.attr['with'];
+ local qstart = retrieve.attr['start'];
+
+ module:log("debug", "Archive query, with %s from %s)",
+ qwith or "anyone", qstart or "the dawn of time");
+
+ if qstart then -- Validate timestamps
+ local vstart = (qstart and date_parse(qstart));
+ if (qstart and not vstart) then
+ origin.send(st.error_reply(stanza, "modify", "bad-request", "Invalid timestamp"))
+ return true
+ end
+ qstart = vstart;
+ end
+
+ if qwith then -- Validate the 'with' jid
+ local pwith = qwith and jid_prep(qwith);
+ if pwith and not qwith then -- it failed prepping
+ origin.send(st.error_reply(stanza, "modify", "bad-request", "Invalid JID"))
+ return true
+ end
+ qwith = jid_bare(pwith);
+ end
+
+ -- RSM stuff
+ local qset = rsm.get(retrieve);
+ local qmax = math.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;
+ if type(before) ~= "string" then before = nil; end
+
+ -- Load all the data!
+ local data, err = archive:find(origin.username, {
+ start = qstart; ["end"] = qstart + conversation_interval;
+ with = qwith;
+ limit = qmax;
+ before = before; after = after;
+ reverse = reverse;
+ total = true;
+ });
+
+ if not data then
+ return origin.send(st.error_reply(stanza, "cancel", "internal-server-error", err));
+ end
+ local count = err;
+
+ local chat = reply:tag('chat', {xmlns=xmlns_archive, with=qwith, start=date_format(qstart), version=count});
+
+ module:log("debug", 'Count '..count);
+ for id, item, when in data do
+ local tag = jid_bare(item['attr']['from']) == jid_bare(origin.full_jid) and 'from' or 'to';
+ tag = chat:tag(tag, {secs = when - qstart});
+ tag:tag('body'):text(item[2][1]):up():up();
+ end
+
+ origin.send(reply);
+ return true;
+end
+
+local function not_implemented(event)
+ local origin, stanza = event.origin, event.stanza;
+ local reply = st.reply(stanza):tag('error', {type='cancel'});
+ reply:tag('feature-not-implemented', {xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'}):up();
+ origin.send(reply);
+end
+
+-- Preferences
+module:hook("iq/self/urn:xmpp:archive:pref", preferences_handler);
+module:hook("iq/self/urn:xmpp:archive:auto", auto_handler);
+module:hook("iq/self/urn:xmpp:archive:itemremove", not_implemented);
+module:hook("iq/self/urn:xmpp:archive:sessionremove", not_implemented);
+
+-- Message Archive Management
+module:hook("iq/self/urn:xmpp:archive:list", list_handler);
+module:hook("iq/self/urn:xmpp:archive:retrieve", retrieve_handler);
+module:hook("iq/self/urn:xmpp:archive:remove", not_implemented);
+
+-- manual archiving
+module:hook("iq/self/urn:xmpp:archive:save", not_implemented);
+-- replication
+module:hook("iq/self/urn:xmpp:archive:modified", not_implemented);