Mercurial > prosody-modules
annotate mod_mam_archive/mod_mam_archive.lua @ 3503:882180b459a0
mod_pubsub_post: Restructure authentication and authorization (BC)
This deprecates the default "superuser" actor model and makes the
default equivalent to the previous "request.id".
A single actor and secret per node is supported because HTTP and
WebHooks don't normally include any authorization identity.
Allowing authentication bypass when no secret is given should be
relatively safe when the actor is unprivileged, as will be unless
explicitly configured otherwise.
| author | Kim Alvefur <zash@zash.se> |
|---|---|
| date | Sat, 30 Mar 2019 21:16:13 +0100 |
| parents | 3e97dae28215 |
| children | 8ff308fad9fd |
| rev | line source |
|---|---|
| 1471 | 1 -- Prosody IM |
| 2 -- | |
| 3 -- This project is MIT/X11 licensed. Please see the | |
| 4 -- COPYING file in the source package for more information. | |
| 5 -- | |
| 6 local get_prefs = module:require"mod_mam/mamprefs".get; | |
| 7 local set_prefs = module:require"mod_mam/mamprefs".set; | |
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8 local rsm = require "util.rsm"; |
| 1471 | 9 local jid_bare = require "util.jid".bare; |
| 10 local jid_prep = require "util.jid".prep; | |
| 11 local date_parse = require "util.datetime".parse; | |
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12 local date_format = require "util.datetime".datetime; |
| 1471 | 13 |
| 14 local st = require "util.stanza"; | |
| 15 local archive_store = "archive2"; | |
| 16 local archive = module:open_store(archive_store, "archive"); | |
| 17 local global_default_policy = module:get_option("default_archive_policy", false); | |
| 18 local default_max_items, max_max_items = 20, module:get_option_number("max_archive_query_results", 50); | |
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19 local conversation_interval = tonumber(module:get_option_number("archive_conversation_interval", 86400)); |
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20 local resolve_relative_path = require "core.configmanager".resolve_relative_path; |
| 1471 | 21 |
| 22 -- Feature discovery | |
| 23 local xmlns_archive = "urn:xmpp:archive" | |
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24 local feature_archive = st.stanza("feature", {xmlns=xmlns_archive}):tag("optional"); |
| 1471 | 25 if(global_default_policy) then |
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26 feature_archive:tag("default"); |
| 1471 | 27 end |
| 28 module:add_extension(feature_archive); | |
| 29 module:add_feature("urn:xmpp:archive:auto"); | |
| 30 module:add_feature("urn:xmpp:archive:manage"); | |
| 31 module:add_feature("urn:xmpp:archive:pref"); | |
| 32 module:add_feature("http://jabber.org/protocol/rsm"); | |
| 33 -- -------------------------------------------------- | |
| 34 | |
| 35 local function prefs_to_stanza(prefs) | |
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36 local prefstanza = st.stanza("pref", { xmlns="urn:xmpp:archive" }); |
| 1471 | 37 local default = prefs[false] ~= nil and prefs[false] or global_default_policy; |
| 38 | |
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39 prefstanza:tag("default", {otr="oppose", save=default and "true" or "false"}):up(); |
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40 prefstanza:tag("method", {type="auto", use="concede"}):up(); |
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41 prefstanza:tag("method", {type="local", use="concede"}):up(); |
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42 prefstanza:tag("method", {type="manual", use="concede"}):up(); |
| 1471 | 43 |
| 44 for jid, choice in pairs(prefs) do | |
| 45 if jid then | |
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46 prefstanza:tag("item", {jid=jid, otr="prefer", save=choice and "message" or "false" }):up() |
| 1471 | 47 end |
| 48 end | |
| 49 | |
| 50 return prefstanza; | |
| 51 end | |
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52 local function prefs_from_stanza(stanza, username) |
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53 local current_prefs = get_prefs(username); |
| 1471 | 54 |
| 55 -- "default" | "item" | "session" | "method" | |
| 56 for elem in stanza:children() do | |
| 57 if elem.name == "default" then | |
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58 current_prefs[false] = elem.attr["save"] == "true"; |
| 1471 | 59 elseif elem.name == "item" then |
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60 current_prefs[elem.attr["jid"]] = not elem.attr["save"] == "false"; |
| 1471 | 61 elseif elem.name == "session" then |
| 62 module:log("info", "element is not supported: " .. tostring(elem)); | |
| 63 -- local found = false; | |
| 64 -- for child in data:children() do | |
| 65 -- if child.name == elem.name and child.attr["thread"] == elem.attr["thread"] then | |
| 66 -- for k, v in pairs(elem.attr) do | |
| 67 -- child.attr[k] = v; | |
| 68 -- end | |
| 69 -- found = true; | |
| 70 -- break; | |
| 71 -- end | |
| 72 -- end | |
| 73 -- if not found then | |
| 74 -- data:tag(elem.name, elem.attr):up(); | |
| 75 -- end | |
| 76 elseif elem.name == "method" then | |
| 77 module:log("info", "element is not supported: " .. tostring(elem)); | |
| 78 -- local newpref = stanza.tags[1]; -- iq:pref | |
| 79 -- for _, e in ipairs(newpref.tags) do | |
| 80 -- -- if e.name ~= "method" then continue end | |
| 81 -- local found = false; | |
| 82 -- for child in data:children() do | |
| 83 -- if child.name == "method" and child.attr["type"] == e.attr["type"] then | |
| 84 -- child.attr["use"] = e.attr["use"]; | |
| 85 -- found = true; | |
| 86 -- break; | |
| 87 -- end | |
| 88 -- end | |
| 89 -- if not found then | |
| 90 -- data:tag(e.name, e.attr):up(); | |
| 91 -- end | |
| 92 -- end | |
| 93 end | |
| 94 end | |
| 95 end | |
| 96 | |
| 97 ------------------------------------------------------------ | |
| 98 -- Preferences | |
| 99 ------------------------------------------------------------ | |
| 100 local function preferences_handler(event) | |
| 101 local origin, stanza = event.origin, event.stanza; | |
| 102 local user = origin.username; | |
| 103 local reply = st.reply(stanza); | |
| 104 | |
| 105 if stanza.attr.type == "get" then | |
| 106 reply:add_child(prefs_to_stanza(get_prefs(user))); | |
| 107 end | |
| 108 if stanza.attr.type == "set" then | |
| 109 local new_prefs = stanza:get_child("pref", xmlns_archive); | |
| 110 if not new_prefs then return false; end | |
| 111 | |
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112 local prefs = prefs_from_stanza(stanza, origin.username); |
| 1471 | 113 local ok, err = set_prefs(user, prefs); |
| 114 | |
| 115 if not ok then | |
| 116 return origin.send(st.error_reply(stanza, "cancel", "internal-server-error", "Error storing preferences: "..tostring(err))); | |
| 117 end | |
| 118 end | |
| 119 return origin.send(reply); | |
| 120 end | |
| 121 local function auto_handler(event) | |
| 122 local origin, stanza = event.origin, event.stanza; | |
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123 if not stanza.attr["type"] == "set" then return false; end |
| 1471 | 124 |
| 125 local user = origin.username; | |
| 126 local prefs = get_prefs(user); | |
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127 local auto = stanza:get_child("auto", xmlns_archive); |
| 1471 | 128 |
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129 prefs[false] = auto.attr["save"] ~= nil and auto.attr["save"] == "true" or false; |
| 1471 | 130 set_prefs(user, prefs); |
| 131 | |
| 132 return origin.send(st.reply(stanza)); | |
| 133 end | |
| 134 | |
| 135 -- excerpt from mod_storage_sql2 | |
| 136 local function get_db() | |
| 137 local mod_sql = module:require("sql"); | |
| 138 local params = module:get_option("sql"); | |
| 139 local engine; | |
| 140 | |
| 141 params = params or { driver = "SQLite3" }; | |
| 142 if params.driver == "SQLite3" then | |
| 143 params.database = resolve_relative_path(prosody.paths.data or ".", params.database or "prosody.sqlite"); | |
| 144 end | |
| 145 | |
| 146 assert(params.driver and params.database, "Both the SQL driver and the database need to be specified"); | |
| 147 engine = mod_sql:create_engine(params); | |
| 148 engine:set_encoding(); | |
| 149 | |
| 150 return engine; | |
| 151 end | |
| 152 | |
| 153 ------------------------------------------------------------ | |
| 154 -- Collections. In our case there is one conversation with each contact for the whole day for simplicity | |
| 155 ------------------------------------------------------------ | |
| 156 local function list_stanza_to_query(origin, list_el) | |
| 157 local sql = "SELECT `with`, `when` / ".. conversation_interval .." as `day`, COUNT(0) FROM `prosodyarchive` WHERE `host`=? AND `user`=? AND `store`=? "; | |
| 158 local args = {origin.host, origin.username, archive_store}; | |
| 159 | |
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160 local with = list_el.attr["with"]; |
| 1471 | 161 if with ~= nil then |
| 162 sql = sql .. "AND `with` = ? "; | |
| 163 table.insert(args, jid_bare(with)); | |
| 164 end | |
| 165 | |
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166 local after = list_el.attr["start"]; |
| 1471 | 167 if after ~= nil then |
| 1586 | 168 sql = sql .. "AND `when` >= ? "; |
| 1471 | 169 table.insert(args, date_parse(after)); |
| 170 end | |
| 171 | |
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172 local before = list_el.attr["end"]; |
| 1471 | 173 if before ~= nil then |
| 174 sql = sql .. "AND `when` <= ? "; | |
| 175 table.insert(args, date_parse(before)); | |
| 176 end | |
| 177 | |
| 178 sql = sql .. "GROUP BY `with`, `when` / ".. conversation_interval .." ORDER BY `when` / ".. conversation_interval .." ASC "; | |
| 179 | |
| 180 local qset = rsm.get(list_el); | |
| 181 local limit = math.min(qset and qset.max or default_max_items, max_max_items); | |
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182 sql = sql.."LIMIT ?"; |
| 1471 | 183 table.insert(args, limit); |
| 184 | |
| 185 table.insert(args, 1, sql); | |
| 186 return args; | |
| 187 end | |
| 188 local function list_handler(event) | |
| 189 local db = get_db(); | |
| 190 local origin, stanza = event.origin, event.stanza; | |
| 191 local reply = st.reply(stanza); | |
| 192 | |
| 193 local query = list_stanza_to_query(origin, stanza.tags[1]); | |
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194 local list = reply:tag("list", {xmlns=xmlns_archive}); |
| 1471 | 195 |
| 196 for row in db:select(unpack(query)) do | |
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197 list:tag("chat", { |
| 1471 | 198 xmlns=xmlns_archive, |
| 199 with=row[1], | |
| 200 start=date_format(row[2] * conversation_interval), | |
| 201 version=row[3] | |
| 202 }):up(); | |
| 203 end | |
| 204 | |
| 205 origin.send(reply); | |
| 206 return true; | |
| 207 end | |
| 208 | |
| 209 ------------------------------------------------------------ | |
| 210 -- Message archive retrieval | |
| 211 ------------------------------------------------------------ | |
| 212 | |
| 213 local function retrieve_handler(event) | |
| 214 local origin, stanza = event.origin, event.stanza; | |
| 215 local reply = st.reply(stanza); | |
| 216 | |
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217 local retrieve = stanza:get_child("retrieve", xmlns_archive); |
| 1471 | 218 |
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219 local qwith = retrieve.attr["with"]; |
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220 local qstart = retrieve.attr["start"]; |
| 1471 | 221 |
| 222 module:log("debug", "Archive query, with %s from %s)", | |
| 223 qwith or "anyone", qstart or "the dawn of time"); | |
| 224 | |
| 225 if qstart then -- Validate timestamps | |
| 226 local vstart = (qstart and date_parse(qstart)); | |
| 227 if (qstart and not vstart) then | |
| 228 origin.send(st.error_reply(stanza, "modify", "bad-request", "Invalid timestamp")) | |
| 229 return true | |
| 230 end | |
| 231 qstart = vstart; | |
| 232 end | |
| 233 | |
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234 if qwith then -- Validate the "with" jid |
| 1471 | 235 local pwith = qwith and jid_prep(qwith); |
| 236 if pwith and not qwith then -- it failed prepping | |
| 237 origin.send(st.error_reply(stanza, "modify", "bad-request", "Invalid JID")) | |
| 238 return true | |
| 239 end | |
| 240 qwith = jid_bare(pwith); | |
| 241 end | |
| 242 | |
| 243 -- RSM stuff | |
| 244 local qset = rsm.get(retrieve); | |
| 245 local qmax = math.min(qset and qset.max or default_max_items, max_max_items); | |
| 246 local reverse = qset and qset.before or false; | |
| 247 local before, after = qset and qset.before, qset and qset.after; | |
| 248 if type(before) ~= "string" then before = nil; end | |
| 249 | |
| 250 -- Load all the data! | |
| 251 local data, err = archive:find(origin.username, { | |
| 252 start = qstart; ["end"] = qstart + conversation_interval; | |
| 253 with = qwith; | |
| 254 limit = qmax; | |
| 255 before = before; after = after; | |
| 256 reverse = reverse; | |
| 1523 | 257 total = true; |
| 1471 | 258 }); |
| 259 | |
| 260 if not data then | |
| 261 return origin.send(st.error_reply(stanza, "cancel", "internal-server-error", err)); | |
| 262 end | |
| 263 local count = err; | |
| 264 | |
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265 local chat = reply:tag("chat", {xmlns=xmlns_archive, with=qwith, start=date_format(qstart), version=count}); |
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266 local first, last; |
| 1523 | 267 |
| 268 module:log("debug", "Count "..count); | |
| 1471 | 269 for id, item, when in data do |
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270 if not getmetatable(item) == st.stanza_mt then |
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271 item = st.deserialize(item); |
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272 end |
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273 module:log("debug", tostring(item)); |
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274 |
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275 local tag = jid_bare(item.attr["from"]) == jid_bare(origin.full_jid) and "to" or "from"; |
| 1471 | 276 tag = chat:tag(tag, {secs = when - qstart}); |
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277 tag:add_child(item:get_child("body")):up(); |
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278 if not first then first = id; end |
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279 last = id; |
| 1471 | 280 end |
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281 reply:add_child(rsm.generate{ first = first, last = last, count = count }) |
| 1471 | 282 |
| 283 origin.send(reply); | |
| 284 return true; | |
| 285 end | |
| 286 | |
| 287 local function not_implemented(event) | |
| 288 local origin, stanza = event.origin, event.stanza; | |
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289 local reply = st.reply(stanza):tag("error", {type="cancel"}); |
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290 reply:tag("feature-not-implemented", {xmlns="urn:ietf:params:xml:ns:xmpp-stanzas"}):up(); |
| 1471 | 291 origin.send(reply); |
| 292 end | |
| 293 | |
| 294 -- Preferences | |
| 295 module:hook("iq/self/urn:xmpp:archive:pref", preferences_handler); | |
| 296 module:hook("iq/self/urn:xmpp:archive:auto", auto_handler); | |
| 297 module:hook("iq/self/urn:xmpp:archive:itemremove", not_implemented); | |
| 298 module:hook("iq/self/urn:xmpp:archive:sessionremove", not_implemented); | |
| 299 | |
| 300 -- Message Archive Management | |
| 301 module:hook("iq/self/urn:xmpp:archive:list", list_handler); | |
| 302 module:hook("iq/self/urn:xmpp:archive:retrieve", retrieve_handler); | |
| 303 module:hook("iq/self/urn:xmpp:archive:remove", not_implemented); | |
| 304 | |
| 305 -- manual archiving | |
| 306 module:hook("iq/self/urn:xmpp:archive:save", not_implemented); | |
| 307 -- replication | |
| 308 module:hook("iq/self/urn:xmpp:archive:modified", not_implemented); |