author | Kim Alvefur <zash@zash.se> |
Fri, 28 Feb 2014 15:36:06 +0100 | |
changeset 1324 | 853a382c9bd6 |
parent 1187 | d677d1807bb0 |
child 1325 | b21236b6b8d8 |
permissions | -rw-r--r-- |
635 | 1 |
-- XEP-0313: Message Archive Management for Prosody |
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-- Copyright (C) 2011-2014 Kim Alvefur |
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-- |
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-- This file is MIT/X11 licensed. |
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|
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local xmlns_mam = "urn:xmpp:mam:0" or ":1"; |
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local xmlns_delay = "urn:xmpp:delay"; |
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local xmlns_forward = "urn:xmpp:forward:0"; |
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|
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local st = require "util.stanza"; |
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local rsm = module:require "rsm"; |
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local prefs = module:require"mamprefs"; |
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local prefsxml = module:require"mamprefsxml"; |
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local set_prefs, get_prefs = prefs.set, prefs.get; |
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local prefs_to_stanza, prefs_from_stanza = prefsxml.tostanza, prefsxml.fromstanza; |
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local jid_bare = require "util.jid".bare; |
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local jid_split = require "util.jid".split; |
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local jid_prep = require "util.jid".prep; |
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local dataform = require "util.dataforms".new; |
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local host = module.host; |
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|
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local rm_load_roster = require "core.rostermanager".load_roster; |
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|
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local getmetatable = getmetatable; |
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local function is_stanza(x) |
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return getmetatable(x) == st.stanza_mt; |
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end |
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|
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local tostring = tostring; |
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local time_now = os.time; |
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local m_min = math.min; |
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local timestamp, timestamp_parse = require "util.datetime".datetime, require "util.datetime".parse; |
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local default_max_items, max_max_items = 20, module:get_option_number("max_archive_query_results", 50); |
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local global_default_policy = module:get_option("default_archive_policy", false); |
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|
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local archive_store = "archive2"; |
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local archive = module:open_store(archive_store, "archive"); |
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if not archive then |
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module:log("error", "Could not open archive storage"); |
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return |
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elseif not archive.find then |
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module:log("error", "mod_%s does not support archiving, switch to mod_storage_sql2", archive._provided_by); |
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return |
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end |
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|
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-- Handle prefs. |
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module:hook("iq/self/"..xmlns_mam..":prefs", function(event) |
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local origin, stanza = event.origin, event.stanza; |
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local user = origin.username; |
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if stanza.attr.type == "get" then |
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local prefs = prefs_to_stanza(get_prefs(user)); |
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local reply = st.reply(stanza):add_child(prefs); |
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return origin.send(reply); |
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else -- type == "set" |
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local new_prefs = stanza:get_child("prefs", xmlns_mam); |
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local prefs = prefs_from_stanza(new_prefs); |
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local ok, err = set_prefs(user, prefs); |
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if not ok then |
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return origin.send(st.error_reply(stanza, "cancel", "internal-server-error", "Error storing preferences: "..tostring(err))); |
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end |
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return origin.send(st.reply(stanza)); |
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end |
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end); |
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|
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local query_form = dataform { |
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{ name = "FORM_TYPE"; type = "hidden"; value = "urn:xmpp:mam:0"; }; |
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{ name = "with"; type = "jid-single"; }; |
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{ name = "start"; type = "text-single" }; |
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{ name = "end"; type = "text-single"; }; |
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}; |
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|
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-- Serve form |
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module:hook("iq-get/self/"..xmlns_mam..":query", function(event) |
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local origin, stanza = event.origin, event.stanza; |
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return origin.send(st.reply(stanza):add_child(query_form:form())); |
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end); |
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|
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-- Handle archive queries |
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module:hook("iq-set/self/"..xmlns_mam..":query", function(event) |
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local origin, stanza = event.origin, event.stanza; |
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local query = stanza.tags[1]; |
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local qid = query.attr.queryid; |
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|
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-- Search query parameters |
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local qwith, qstart, qend; |
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local form = query:get_child("x", "jabber:x:data"); |
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if form then |
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local err; |
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form, err = query_form:data(form); |
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if err then |
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return origin.send(st.error_reply(stanza, "modify", "bad-request", select(2, next(err)))) |
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end |
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qwith, qstart, qend = form["with"], form["start"], form["end"]; |
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qwith = qwith and jid_bare(qwith); |
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end |
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|
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if qstart or qend then -- Validate timestamps |
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local vstart, vend = (qstart and timestamp_parse(qstart)), (qend and timestamp_parse(qend)) |
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if (qstart and not vstart) or (qend and not vend) then |
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origin.send(st.error_reply(stanza, "modify", "bad-request", "Invalid timestamp")) |
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return true |
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end |
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|
103 |
qstart, qend = vstart, vend; |
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|
104 |
end |
558
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|
105 |
|
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|
106 |
module:log("debug", "Archive query, id %s with %s from %s until %s)", |
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|
107 |
tostring(qid), qwith or "anyone", qstart or "the dawn of time", qend or "now"); |
523
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|
108 |
|
1112
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|
109 |
-- RSM stuff |
1116
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|
110 |
local qset = rsm.get(query); |
1112
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|
111 |
local qmax = m_min(qset and qset.max or default_max_items, max_max_items); |
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|
112 |
local reverse = qset and qset.before or false; |
1116
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|
113 |
local before, after = qset and qset.before, qset and qset.after; |
2345a30dd8b4
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|
114 |
if type(before) ~= "string" then before = nil; end |
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|
115 |
|
1112
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116 |
|
1116
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|
117 |
-- Load all the data! |
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118 |
local data, err = archive:find(origin.username, { |
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119 |
start = qstart; ["end"] = qend; -- Time range |
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120 |
with = qwith; |
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121 |
limit = qmax; |
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122 |
before = before; after = after; |
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|
123 |
reverse = reverse; |
2345a30dd8b4
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124 |
total = true; |
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125 |
}); |
558
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|
126 |
|
1116
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|
127 |
if not data then |
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|
128 |
return origin.send(st.error_reply(stanza, "cancel", "internal-server-error", err)); |
1116
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|
129 |
end |
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|
130 |
local count = err; |
2345a30dd8b4
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|
131 |
|
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|
132 |
-- Wrap it in stuff and deliver |
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|
133 |
local first_id, last_id, first_time, last_time; |
1116
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|
134 |
for id, item, when in data do |
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|
135 |
local fwd_st = st.message{ to = origin.full_jid } |
2345a30dd8b4
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|
136 |
:tag("result", { xmlns = xmlns_mam, queryid = qid, id = id }) |
2345a30dd8b4
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|
137 |
:tag("forwarded", { xmlns = xmlns_forward }) |
2345a30dd8b4
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|
138 |
:tag("delay", { xmlns = xmlns_delay, stamp = timestamp(when) }):up(); |
2345a30dd8b4
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|
139 |
|
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|
140 |
if not is_stanza(item) then |
2345a30dd8b4
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parents:
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|
141 |
item = st.deserialize(item); |
1112
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|
142 |
end |
1116
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parents:
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|
143 |
item.attr.xmlns = "jabber:client"; |
2345a30dd8b4
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Kim Alvefur <zash@zash.se>
parents:
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|
144 |
fwd_st:add_child(item); |
701
cc5805f83583
mod_mam: Implement support for Result Set Management in queries.
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parents:
675
diff
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|
145 |
|
1324
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parents:
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|
146 |
if not first_id then |
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|
147 |
first_id = id; |
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|
148 |
first_time = when; |
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|
149 |
end |
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|
150 |
last_id = id; |
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|
151 |
last_time = when; |
1116
2345a30dd8b4
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|
152 |
|
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|
153 |
origin.send(fwd_st); |
1112
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|
154 |
end |
1dc07833355e
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|
155 |
-- That's all folks! |
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|
156 |
module:log("debug", "Archive query %s completed", tostring(qid)); |
705
c9d0ba39a33b
mod_mam: Move RSM pointer to last message into a MAM-namespaced child
Kim Alvefur <zash@zash.se>
parents:
702
diff
changeset
|
157 |
|
1324
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|
158 |
if reverse then |
853a382c9bd6
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|
159 |
first_id, last_id, first_time, last_time = |
853a382c9bd6
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|
160 |
last_id, first_id, last_time, first_time; |
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|
161 |
end |
1113 | 162 |
return origin.send(st.reply(stanza) |
1324
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|
163 |
:query(xmlns_mam) |
853a382c9bd6
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|
164 |
:add_child(query_form:form({ start = timestamp(first_time), ["end"] = timestamp(last_time), with = qwith })) |
853a382c9bd6
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parents:
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|
165 |
:add_child(rsm.generate { |
853a382c9bd6
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|
166 |
first = first_id, last = last_id, count = count })); |
523
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|
167 |
end); |
eff140d53b83
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parents:
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|
168 |
|
558
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|
169 |
local function has_in_roster(user, who) |
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|
170 |
local roster = rm_load_roster(user, host); |
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parents:
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|
171 |
module:log("debug", "%s has %s in roster? %s", user, who, roster[who] and "yes" or "no"); |
798 | 172 |
return roster[who]; |
558
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|
173 |
end |
66de25ffc8d9
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parents:
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changeset
|
174 |
|
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|
175 |
local function shall_store(user, who) |
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|
176 |
-- TODO Cache this? |
66de25ffc8d9
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parents:
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|
177 |
local prefs = get_prefs(user); |
66de25ffc8d9
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parents:
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|
178 |
local rule = prefs[who]; |
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parents:
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|
179 |
module:log("debug", "%s's rule for %s is %s", user, who, tostring(rule)) |
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parents:
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|
180 |
if rule ~= nil then |
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|
181 |
return rule; |
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parents:
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|
182 |
else -- Below could be done by a metatable |
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parents:
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|
183 |
local default = prefs[false]; |
66de25ffc8d9
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parents:
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|
184 |
module:log("debug", "%s's default rule is %s", user, tostring(default)) |
66de25ffc8d9
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parents:
523
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changeset
|
185 |
if default == nil then |
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|
186 |
default = global_default_policy; |
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parents:
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|
187 |
module:log("debug", "Using global default rule, %s", tostring(default)) |
66de25ffc8d9
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parents:
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diff
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|
188 |
end |
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parents:
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diff
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|
189 |
if default == "roster" then |
66de25ffc8d9
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parents:
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|
190 |
return has_in_roster(user, who); |
66de25ffc8d9
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parents:
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diff
changeset
|
191 |
end |
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parents:
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|
192 |
return default; |
66de25ffc8d9
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parents:
523
diff
changeset
|
193 |
end |
66de25ffc8d9
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Kim Alvefur <zash@zash.se>
parents:
523
diff
changeset
|
194 |
end |
66de25ffc8d9
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parents:
523
diff
changeset
|
195 |
|
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parents:
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|
196 |
-- Handle messages |
523
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parents:
diff
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|
197 |
local function message_handler(event, c2s) |
eff140d53b83
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parents:
diff
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|
198 |
local origin, stanza = event.origin, event.stanza; |
eff140d53b83
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parents:
diff
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|
199 |
local orig_type = stanza.attr.type or "normal"; |
eff140d53b83
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parents:
diff
changeset
|
200 |
local orig_from = stanza.attr.from; |
1149
d055c44a7f61
mod_mam: Clean up and explain the code that determines who's archive we put the message in
Kim Alvefur <zash@zash.se>
parents:
1135
diff
changeset
|
201 |
local orig_to = stanza.attr.to or orig_from; |
d055c44a7f61
mod_mam: Clean up and explain the code that determines who's archive we put the message in
Kim Alvefur <zash@zash.se>
parents:
1135
diff
changeset
|
202 |
-- Stanza without 'to' are treated as if it was to their own bare jid |
523
eff140d53b83
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parents:
diff
changeset
|
203 |
|
1150
296820f18ba6
mod_mam: Add support for XEP-0334: Message Processing Hints
Kim Alvefur <zash@zash.se>
parents:
1149
diff
changeset
|
204 |
-- We don't store messages of these types |
523
eff140d53b83
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parents:
diff
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|
205 |
if orig_type == "error" |
eff140d53b83
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Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
206 |
or orig_type == "headline" |
671
74efb2db00a6
mod_mam: From the spec: servers SHOULD NOT archive messages that do not have a <body/> child tag.
Thijs Alkemade <thijsalkemade@gmail.com>
parents:
666
diff
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|
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or orig_type == "groupchat" |
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-- or that don't have a <body/> |
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or not stanza:get_child("body") |
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-- or if hints suggest we shouldn't |
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or stanza:get_child("no-permanent-store", "urn:xmpp:hints") |
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or stanza:get_child("no-store", "urn:xmpp:hints") then |
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module:log("debug", "Not archiving stanza: %s (content)", stanza:top_tag()); |
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return; |
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215 |
end |
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216 |
|
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-- Whos storage do we put it in? |
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local store_user = c2s and origin.username or jid_split(orig_to); |
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-- And who are they chatting with? |
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local with = jid_bare(c2s and orig_to or orig_from); |
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221 |
|
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222 |
-- Check with the users preferences |
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if shall_store(store_user, with) then |
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module:log("debug", "Archiving stanza: %s", stanza:top_tag()); |
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|
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226 |
-- And stash it |
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local ok, id = archive:append(store_user, time_now(), with, stanza); |
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228 |
if ok then |
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stanza:tag("archived", { xmlns = xmlns_mam, by = store_user.."@"..host, id = id }):up(); |
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230 |
end |
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231 |
else |
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module:log("debug", "Not archiving stanza: %s (prefs)", stanza:top_tag()); |
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233 |
end |
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234 |
end |
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235 |
|
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236 |
local function c2s_message_handler(event) |
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return message_handler(event, true); |
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238 |
end |
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239 |
|
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240 |
-- Stanzas sent by local clients |
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241 |
module:hook("pre-message/bare", c2s_message_handler, 2); |
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242 |
module:hook("pre-message/full", c2s_message_handler, 2); |
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243 |
-- Stanszas to local clients |
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module:hook("message/bare", message_handler, 2); |
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245 |
module:hook("message/full", message_handler, 2); |
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246 |
|
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247 |
local function post_carbons_handler(event) |
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248 |
event.stanza:maptags(function(tag) |
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249 |
if not ( tag.attr.xmlns == xmlns_mam and tag.name == "archived" ) then |
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250 |
return tag; |
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251 |
end |
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252 |
end); |
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253 |
end |
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254 |
|
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255 |
module:hook("pre-message/bare", post_carbons_handler, 0.9); |
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256 |
module:hook("pre-message/full", post_carbons_handler, 0.9); |
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257 |
|
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258 |
module:add_feature(xmlns_mam); |
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|
259 |