5 Prosody - key-value, map
6 | host | user | store | key | type | value |
8 | host | user | store | key | time | stanzatype | jsonvalue |
12 | host | user | "roster" | "contactjid" | type | value |
13 | host | user | "roster" | NULL | "json" | roster[false] data |
15 | host | user | "accounts" | "username" | type | value |
17 Offline - ProsodyArchive
18 | host | user | "offline" | "contactjid" | time | "message" | json|XML |
23 local tostring = tostring;
24 local tonumber = tonumber;
27 local setmetatable = setmetatable;
28 local xpcall = xpcall;
29 local json = require "util.json";
32 local host,user,store = module.host;
33 local params = module:get_option("sql");
35 local resolve_relative_path = require "core.configmanager".resolve_relative_path;
37 do -- process options to get a db connection
38 local DBI = require "DBI";
40 params = params or { driver = "SQLite3" };
42 if params.driver == "SQLite3" then
43 params.database = resolve_relative_path(prosody.paths.data or ".", params.database or "prosody.sqlite");
46 assert(params.driver and params.database, "Both the SQL driver and the database need to be specified");
48 prosody.unlock_globals();
49 local dbh, err = DBI.Connect(
50 params.driver, params.database,
51 params.username, params.password,
52 params.host, params.port
54 prosody.lock_globals();
57 dbh:autocommit(false); -- don't commit automatically
60 if params.driver == "SQLite3" then -- auto initialize
61 local stmt = assert(connection:prepare("SELECT COUNT(*) FROM `sqlite_master` WHERE `type`='table' AND `name`='Prosody';"));
62 local ok = assert(stmt:execute());
63 local count = stmt:fetch()[1];
65 local stmt = assert(connection:prepare("CREATE TABLE `Prosody` (`host` TEXT, `user` TEXT, `store` TEXT, `key` TEXT, `type` TEXT, `value` TEXT);"));
66 assert(stmt:execute());
67 module:log("debug", "Initialized new SQLite3 database");
69 assert(connection:commit());
70 --print("===", json.encode())
74 local function serialize(value)
75 local t = type(value);
76 if t == "string" or t == "boolean" or t == "number" then
77 return t, tostring(value);
78 elseif t == "table" then
79 local value,err = json.encode(value);
80 if value then return "json", value; end
83 return nil, "Unhandled value type: "..t;
85 local function deserialize(t, value)
86 if t == "string" then return value;
87 elseif t == "boolean" then
88 if value == "true" then return true;
89 elseif value == "false" then return false; end
90 elseif t == "number" then return tonumber(value);
91 elseif t == "json" then
92 return json.decode(value);
96 local function getsql(sql, ...)
97 if params.driver == "PostgreSQL" then
98 sql = sql:gsub("`", "\"");
100 -- do prepared statement stuff
101 local stmt, err = connection:prepare(sql);
102 if not stmt then module:log("error", "QUERY FAILED: %s %s", err, debug.traceback()); return nil, err; end
104 local ok, err = stmt:execute(host or "", user or "", store or "", ...);
105 if not ok then return nil, err; end
109 local function setsql(sql, ...)
110 local stmt, err = getsql(sql, ...);
111 if not stmt then return stmt, err; end
112 return stmt:affected();
114 local function transact(...)
117 local function rollback(...)
118 connection:rollback(); -- FIXME check for rollback error?
121 local function commit(...)
122 if not connection:commit() then return nil, "SQL commit failed"; end
126 local function keyval_store_get()
127 local stmt, err = getsql("SELECT * FROM `Prosody` WHERE `host`=? AND `user`=? AND `store`=?");
128 if not stmt then return nil, err; end
132 for row in stmt:rows(true) do
135 local v = deserialize(row.type, row.value);
137 if k ~= "" then result[k] = v; elseif type(v) == "table" then
138 for a,b in pairs(v) do
144 return commit(haveany and result or nil);
146 local function keyval_store_set(data)
147 local affected, err = setsql("DELETE FROM `Prosody` WHERE `host`=? AND `user`=? AND `store`=?");
149 if data and next(data) ~= nil then
150 local extradata = {};
151 for key, value in pairs(data) do
152 if type(key) == "string" and key ~= "" then
153 local t, value = serialize(value);
154 if not t then return rollback(t, value); end
155 local ok, err = setsql("INSERT INTO `Prosody` (`host`,`user`,`store`,`key`,`type`,`value`) VALUES (?,?,?,?,?,?)", key, t, value);
156 if not ok then return rollback(ok, err); end
158 extradata[key] = value;
161 if next(extradata) ~= nil then
162 local t, extradata = serialize(extradata);
163 if not t then return rollback(t, extradata); end
164 local ok, err = setsql("INSERT INTO `Prosody` (`host`,`user`,`store`,`key`,`type`,`value`) VALUES (?,?,?,?,?,?)", "", t, extradata);
165 if not ok then return rollback(ok, err); end
171 local keyval_store = {};
172 keyval_store.__index = keyval_store;
173 function keyval_store:get(username)
174 user,store = username,self.store;
175 local success, ret, err = xpcall(keyval_store_get, debug.traceback);
176 if success then return ret, err; else return rollback(nil, ret); end
178 function keyval_store:set(username, data)
179 user,store = username,self.store;
180 local success, ret, err = xpcall(function() return keyval_store_set(data); end, debug.traceback);
181 if success then return ret, err; else return rollback(nil, ret); end
184 local function map_store_get(key)
185 local stmt, err = getsql("SELECT * FROM `Prosody` WHERE `host`=? AND `user`=? AND `store`=? AND `key`=?", key or "");
186 if not stmt then return nil, err; end
190 for row in stmt:rows(true) do
193 local v = deserialize(row.type, row.value);
195 if k ~= "" then result[k] = v; elseif type(v) == "table" then
196 for a,b in pairs(v) do
202 return commit(haveany and result[key] or nil);
204 local function map_store_set(key, data)
205 local affected, err = setsql("DELETE FROM `Prosody` WHERE `host`=? AND `user`=? AND `store`=? AND `key`=?", key or "");
207 if data and next(data) ~= nil then
208 if type(key) == "string" and key ~= "" then
209 local t, value = serialize(data);
210 if not t then return rollback(t, value); end
211 local ok, err = setsql("INSERT INTO `Prosody` (`host`,`user`,`store`,`key`,`type`,`value`) VALUES (?,?,?,?,?,?)", key, t, value);
212 if not ok then return rollback(ok, err); end
214 -- TODO non-string keys
220 local map_store = {};
221 map_store.__index = map_store;
222 function map_store:get(username, key)
223 user,store = username,self.store;
224 local success, ret, err = xpcall(function() return map_store_get(key); end, debug.traceback);
225 if success then return ret, err; else return rollback(nil, ret); end
227 function map_store:set(username, key, data)
228 user,store = username,self.store;
229 local success, ret, err = xpcall(function() return map_store_set(key, data); end, debug.traceback);
230 if success then return ret, err; else return rollback(nil, ret); end
233 local list_store = {};
234 list_store.__index = list_store;
235 function list_store:scan(username, from, to, jid, typ)
236 user,store = username,self.store;
238 local cols = {"from", "to", "jid", "typ"};
239 local vals = { from , to , jid , typ };
241 local query = "SELECT * FROM `ProsodyArchive` WHERE `host`=? AND `user`=? AND `store`=?";
243 query = query.." ORDER BY time";
244 --local stmt, err = getsql("SELECT * FROM `Prosody` WHERE `host`=? AND `user`=? AND `store`=? AND `key`=?", key or "");
246 return nil, "not-implemented"
249 local driver = { name = "sql" };
251 function driver:open(store, typ)
252 if not typ then -- default key-value store
253 return setmetatable({ store = store }, keyval_store);
255 return nil, "unsupported-store";
258 module:add_item("data-driver", driver);