2 local json = require "util.json";
3 local sql = require "util.sql";
4 local xml_parse = require "util.xml".parse;
5 local uuid = require "util.uuid";
6 local resolve_relative_path = require "util.paths".resolve_relative_path;
8 local stanza_mt = require"util.stanza".stanza_mt;
9 local getmetatable = getmetatable;
10 local t_concat = table.concat;
11 local function is_stanza(x) return getmetatable(x) == stanza_mt; end
13 local noop = function() end
15 local function iterator(result)
16 return function(result_)
17 local row = result_();
24 local default_params = { driver = "SQLite3" };
28 local function serialize(value)
29 local t = type(value);
30 if t == "string" or t == "boolean" or t == "number" then
31 return t, tostring(value);
32 elseif is_stanza(value) then
33 return "xml", tostring(value);
34 elseif t == "table" then
35 local value,err = json.encode(value);
36 if value then return "json", value; end
39 return nil, "Unhandled value type: "..t;
41 local function deserialize(t, value)
42 if t == "string" then return value;
43 elseif t == "boolean" then
44 if value == "true" then return true;
45 elseif value == "false" then return false; end
46 elseif t == "number" then return tonumber(value);
47 elseif t == "json" then
48 return json.decode(value);
49 elseif t == "xml" then
50 return xml_parse(value);
54 local host = module.host;
57 local function keyval_store_get()
60 for row in engine:select("SELECT `key`,`type`,`value` FROM `prosody` WHERE `host`=? AND `user`=? AND `store`=?", host, user or "", store) do
63 local v = deserialize(row[2], row[3]);
65 if k ~= "" then result[k] = v; elseif type(v) == "table" then
66 for a,b in pairs(v) do
76 local function keyval_store_set(data)
77 engine:delete("DELETE FROM `prosody` WHERE `host`=? AND `user`=? AND `store`=?", host, user or "", store);
79 if data and next(data) ~= nil then
81 for key, value in pairs(data) do
82 if type(key) == "string" and key ~= "" then
83 local t, value = serialize(value);
85 engine:insert("INSERT INTO `prosody` (`host`,`user`,`store`,`key`,`type`,`value`) VALUES (?,?,?,?,?,?)", host, user or "", store, key, t, value);
87 extradata[key] = value;
90 if next(extradata) ~= nil then
91 local t, extradata = serialize(extradata);
93 engine:insert("INSERT INTO `prosody` (`host`,`user`,`store`,`key`,`type`,`value`) VALUES (?,?,?,?,?,?)", host, user or "", store, "", t, extradata);
99 --- Key/value store API (default store type)
101 local keyval_store = {};
102 keyval_store.__index = keyval_store;
103 function keyval_store:get(username)
104 user, store = username, self.store;
105 local ok, result = engine:transaction(keyval_store_get);
107 module:log("error", "Unable to read from database %s store for %s: %s", store, username or "<host>", result);
112 function keyval_store:set(username, data)
113 user,store = username,self.store;
114 return engine:transaction(function()
115 return keyval_store_set(data);
118 function keyval_store:users()
119 local ok, result = engine:transaction(function()
120 return engine:select("SELECT DISTINCT `user` FROM `prosody` WHERE `host`=? AND `store`=?", host, self.store);
122 if not ok then return ok, result end
123 return iterator(result);
126 --- Archive store API
128 local map_store = {};
129 map_store.__index = map_store;
130 function map_store:get(username, key)
131 local ok, result = engine:transaction(function()
132 if type(key) == "string" and key ~= "" then
133 for row in engine:select("SELECT `type`, `value` FROM `prosody` WHERE `host`=? AND `user`=? AND `store`=? AND `key`=?", host, username or "", self.store, key) do
134 return deserialize(row[1], row[2]);
137 error("TODO: non-string keys");
140 if not ok then return nil, result; end
143 function map_store:set(username, key, data)
144 local ok, result = engine:transaction(function()
145 if type(key) == "string" and key ~= "" then
146 engine:delete("DELETE FROM `prosody` WHERE `host`=? AND `user`=? AND `store`=? AND `key`=?",
147 host, username or "", self.store, key);
149 local t, value = assert(serialize(data));
150 engine:insert("INSERT INTO `prosody` (`host`,`user`,`store`,`key`,`type`,`value`) VALUES (?,?,?,?,?,?)", host, username or "", self.store, key, t, value);
153 error("TODO: non-string keys");
157 if not ok then return nil, result; end
161 local archive_store = {}
162 archive_store.caps = {
165 archive_store.__index = archive_store
166 function archive_store:append(username, key, value, when, with)
167 if type(when) ~= "number" then
168 when, with, value = value, when, with;
170 local user,store = username,self.store;
171 return engine:transaction(function()
173 engine:delete("DELETE FROM `prosodyarchive` WHERE `host`=? AND `user`=? AND `store`=? AND `key`=?", host, user or "", store, key);
175 key = uuid.generate();
177 local t, value = serialize(value);
178 engine:insert("INSERT INTO `prosodyarchive` (`host`, `user`, `store`, `when`, `with`, `key`, `type`, `value`) VALUES (?,?,?,?,?,?,?,?)", host, user or "", store, when, with, key, t, value);
183 -- Helpers for building the WHERE clause
184 local function archive_where(query, args, where)
185 -- Time range, inclusive
187 args[#args+1] = query.start
188 where[#where+1] = "`when` >= ?"
192 args[#args+1] = query["end"];
194 where[#where] = "`when` BETWEEN ? AND ?" -- is this inclusive?
196 where[#where+1] = "`when` <= ?"
202 where[#where+1] = "`with` = ?";
203 args[#args+1] = query.with
208 where[#where+1] = "`key` = ?";
209 args[#args+1] = query.key
212 local function archive_where_id_range(query, args, where)
213 local args_len = #args
214 -- Before or after specific item, exclusive
215 if query.after then -- keys better be unique!
216 where[#where+1] = "`sort_id` > (SELECT `sort_id` FROM `prosodyarchive` WHERE `key` = ? AND `host` = ? AND `user` = ? AND `store` = ? LIMIT 1)"
217 args[args_len+1], args[args_len+2], args[args_len+3], args[args_len+4] = query.after, args[1], args[2], args[3];
218 args_len = args_len + 4
221 where[#where+1] = "`sort_id` < (SELECT `sort_id` FROM `prosodyarchive` WHERE `key` = ? AND `host` = ? AND `user` = ? AND `store` = ? LIMIT 1)"
222 args[args_len+1], args[args_len+2], args[args_len+3], args[args_len+4] = query.before, args[1], args[2], args[3];
226 function archive_store:find(username, query)
228 local user,store = username,self.store;
230 local ok, result = engine:transaction(function()
231 local sql_query = "SELECT `key`, `type`, `value`, `when`, `with` FROM `prosodyarchive` WHERE %s ORDER BY `sort_id` %s%s;";
232 local args = { host, user or "", store, };
233 local where = { "`host` = ?", "`user` = ?", "`store` = ?", };
235 archive_where(query, args, where);
239 local stats = engine:select("SELECT COUNT(*) FROM `prosodyarchive` WHERE " .. t_concat(where, " AND "), unpack(args));
241 local _total = stats()
242 total = _total and _total[1];
244 if query.limit == 0 then -- Skip the real query
249 archive_where_id_range(query, args, where);
252 args[#args+1] = query.limit;
255 sql_query = sql_query:format(t_concat(where, " AND "), query.reverse and "DESC" or "ASC", query.limit and " LIMIT ?" or "");
256 module:log("debug", sql_query);
257 return engine:select(sql_query, unpack(args));
259 if not ok then return ok, result end
261 local row = result();
263 return row[1], deserialize(row[2], row[3]), row[4], row[5];
268 function archive_store:delete(username, query)
270 local user,store = username,self.store;
271 return engine:transaction(function()
272 local sql_query = "DELETE FROM `prosodyarchive` WHERE %s;";
273 local args = { host, user or "", store, };
274 local where = { "`host` = ?", "`user` = ?", "`store` = ?", };
276 table.remove(args, 2);
277 table.remove(where, 2);
279 archive_where(query, args, where);
280 archive_where_id_range(query, args, where);
281 sql_query = sql_query:format(t_concat(where, " AND "));
282 module:log("debug", sql_query);
283 return engine:delete(sql_query, unpack(args));
288 keyval = keyval_store;
290 archive = archive_store;
293 --- Implement storage driver API
295 -- FIXME: Some of these operations need to operate on the archive store(s) too
299 function driver:open(store, typ)
300 local store_mt = stores[typ or "keyval"];
302 return setmetatable({ store = store }, store_mt);
304 return nil, "unsupported-store";
307 function driver:stores(username)
308 local query = "SELECT DISTINCT `store` FROM `prosody` WHERE `host`=? AND `user`" ..
309 (username == true and "!=?" or "=?");
310 if username == true or not username then
313 local ok, result = engine:transaction(function()
314 return engine:select(query, host, username);
316 if not ok then return ok, result end
317 return iterator(result);
320 function driver:purge(username)
321 return engine:transaction(function()
322 local stmt,err = engine:delete("DELETE FROM `prosody` WHERE `host`=? AND `user`=?", host, username);
330 local function create_table(name)
331 local Table, Column, Index = sql.Table, sql.Column, sql.Index;
333 local ProsodyTable = Table {
334 name= name or "prosody";
335 Column { name="host", type="TEXT", nullable=false };
336 Column { name="user", type="TEXT", nullable=false };
337 Column { name="store", type="TEXT", nullable=false };
338 Column { name="key", type="TEXT", nullable=false };
339 Column { name="type", type="TEXT", nullable=false };
340 Column { name="value", type="MEDIUMTEXT", nullable=false };
341 Index { name="prosody_index", "host", "user", "store", "key" };
343 engine:transaction(function()
344 ProsodyTable:create(engine);
347 local ProsodyArchiveTable = Table {
348 name="prosodyarchive";
349 Column { name="sort_id", type="INTEGER", primary_key=true, auto_increment=true };
350 Column { name="host", type="TEXT", nullable=false };
351 Column { name="user", type="TEXT", nullable=false };
352 Column { name="store", type="TEXT", nullable=false };
353 Column { name="key", type="TEXT", nullable=false }; -- item id
354 Column { name="when", type="INTEGER", nullable=false }; -- timestamp
355 Column { name="with", type="TEXT", nullable=false }; -- related id
356 Column { name="type", type="TEXT", nullable=false };
357 Column { name="value", type="MEDIUMTEXT", nullable=false };
358 Index { name="prosodyarchive_index", unique = true, "host", "user", "store", "key" };
360 engine:transaction(function()
361 ProsodyArchiveTable:create(engine);
365 local function upgrade_table(params, apply_changes)
366 local changes = false;
367 if params.driver == "MySQL" then
368 local success,err = engine:transaction(function()
369 local result = engine:execute("SHOW COLUMNS FROM prosody WHERE Field='value' and Type='text'");
370 if result:rowcount() > 0 then
372 if apply_changes then
373 module:log("info", "Upgrading database schema...");
374 engine:execute("ALTER TABLE prosody MODIFY COLUMN `value` MEDIUMTEXT");
375 module:log("info", "Database table automatically upgraded");
381 module:log("error", "Failed to check/upgrade database schema (%s), please see "
382 .."http://prosody.im/doc/mysql for help",
383 err or "unknown error");
387 -- COMPAT w/pre-0.10: Upgrade table to UTF-8 if not already
388 local check_encoding_query = "SELECT `COLUMN_NAME`,`COLUMN_TYPE`,`TABLE_NAME` FROM `information_schema`.`columns` WHERE `TABLE_NAME` LIKE 'prosody%%' AND ( `CHARACTER_SET_NAME`!='%s' OR `COLLATION_NAME`!='%s_bin' );";
389 check_encoding_query = check_encoding_query:format(engine.charset, engine.charset);
390 success,err = engine:transaction(function()
391 local result = engine:execute(check_encoding_query);
392 local n_bad_columns = result:rowcount();
393 if n_bad_columns > 0 then
395 if apply_changes then
396 module:log("warn", "Found %d columns in prosody table requiring encoding change, updating now...", n_bad_columns);
397 local fix_column_query1 = "ALTER TABLE `%s` CHANGE `%s` `%s` BLOB;";
398 local fix_column_query2 = "ALTER TABLE `%s` CHANGE `%s` `%s` %s CHARACTER SET '%s' COLLATE '%s_bin';";
399 for row in result:rows() do
400 local column_name, column_type, table_name = unpack(row);
401 module:log("debug", "Fixing column %s in table %s", column_name, table_name);
402 engine:execute(fix_column_query1:format(table_name, column_name, column_name));
403 engine:execute(fix_column_query2:format(table_name, column_name, column_name, column_type, engine.charset, engine.charset));
405 module:log("info", "Database encoding upgrade complete!");
409 success,err = engine:transaction(function() return engine:execute(check_encoding_query); end);
411 module:log("error", "Failed to check/upgrade database encoding: %s", err or "unknown error");
418 local function normalize_params(params)
419 if params.driver == "SQLite3" then
420 if params.database ~= ":memory:" then
421 params.database = resolve_relative_path(prosody.paths.data or ".", params.database or "prosody.sqlite");
424 assert(params.driver and params.database, "Configuration error: Both the SQL driver and the database need to be specified");
428 function module.load()
429 if prosody.prosodyctl then return; end
430 local params = normalize_params(module:get_option("sql", default_params));
431 engine = sql:create_engine(params, function (engine)
432 if module:get_option("sql_manage_tables", true) then
433 -- Automatically create table, ignore failure (table probably already exists)
434 -- FIXME: we should check in information_schema, etc.
436 -- Check whether the table needs upgrading
437 if upgrade_table(params, false) then
438 module:log("error", "Old database format detected. Please run: prosodyctl mod_%s upgrade", module.name);
439 return false, "database upgrade needed";
444 module:provides("storage", driver);
447 function module.command(arg)
448 local config = require "core.configmanager";
449 local prosodyctl = require "util.prosodyctl";
450 local command = table.remove(arg, 1);
451 if command == "upgrade" then
452 -- We need to find every unique dburi in the config
454 for host in pairs(prosody.hosts) do
455 local params = config.get(host, "sql") or default_params;
456 uris[sql.db2uri(params)] = params;
458 print("We will check and upgrade the following databases:\n");
459 for _, params in pairs(uris) do
460 print("", "["..params.driver.."] "..params.database..(params.host and " on "..params.host or ""));
463 print("Ensure you have working backups of the above databases before continuing! ");
464 if not prosodyctl.show_yesno("Continue with the database upgrade? [yN]") then
465 print("Ok, no upgrade. But you do have backups, don't you? ...don't you?? :-)");
469 for _, params in pairs(uris) do
470 print("Checking "..params.database.."...");
471 engine = sql:create_engine(params);
472 upgrade_table(params, true);
476 print("Unknown command: "..command);