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 json = require "util.json";
30 local connection = ...;
31 local host,user,store = module.host;
32 local params = module:get_option("sql");
34 do -- process options to get a db connection
35 local DBI = require "DBI";
37 params = params or { driver = "SQLite3", database = "prosody.sqlite" };
38 assert(params.driver and params.database, "invalid params");
40 prosody.unlock_globals();
41 local dbh, err = DBI.Connect(
42 params.driver, params.database,
43 params.username, params.password,
44 params.host, params.port
46 prosody.lock_globals();
49 dbh:autocommit(false); -- don't commit automatically
52 if params.driver == "SQLite3" then -- auto initialize
53 local stmt = assert(connection:prepare("SELECT COUNT(*) FROM `sqlite_master` WHERE `type`='table' AND `name`='Prosody';"));
54 local ok = assert(stmt:execute());
55 local count = stmt:fetch()[1];
57 local stmt = assert(connection:prepare("CREATE TABLE `Prosody` (`host` TEXT, `user` TEXT, `store` TEXT, `key` TEXT, `type` TEXT, `value` TEXT);"));
58 assert(stmt:execute());
59 module:log("debug", "Initialized new SQLite3 database");
61 assert(connection:commit());
62 --print("===", json.encode())
66 local function serialize(value)
67 local t = type(value);
68 if t == "string" or t == "boolean" or t == "number" then
69 return t, tostring(value);
70 elseif t == "table" then
71 local value,err = json.encode(value);
72 if value then return "json", value; end
75 return nil, "Unhandled value type: "..t;
77 local function deserialize(t, value)
78 if t == "string" then return value;
79 elseif t == "boolean" then
80 if value == "true" then return true;
81 elseif value == "false" then return false; end
82 elseif t == "number" then return tonumber(value);
83 elseif t == "json" then
84 return json.decode(value);
88 local function getsql(sql, ...)
89 if params.driver == "PostgreSQL" then
90 sql = sql:gsub("`", "\"");
92 -- do prepared statement stuff
93 local stmt, err = connection:prepare(sql);
94 if not stmt then module:log("error", "QUERY FAILED: %s %s", err, debug.traceback()); return nil, err; end
96 local ok, err = stmt:execute(host or "", user or "", store or "", ...);
97 if not ok then return nil, err; end
101 local function setsql(sql, ...)
102 local stmt, err = getsql(sql, ...);
103 if not stmt then return stmt, err; end
104 return stmt:affected();
106 local function transact(...)
109 local function rollback(...)
110 connection:rollback(); -- FIXME check for rollback error?
113 local function commit(...)
114 if not connection:commit() then return nil, "SQL commit failed"; end
118 local keyval_store = {};
119 keyval_store.__index = keyval_store;
120 function keyval_store:get(username)
121 user,store = username,self.store;
122 local stmt, err = getsql("SELECT * FROM `Prosody` WHERE `host`=? AND `user`=? AND `store`=?");
123 if not stmt then return nil, err; end
127 for row in stmt:rows(true) do
130 local v = deserialize(row.type, row.value);
132 if k ~= "" then result[k] = v; elseif type(v) == "table" then
133 for a,b in pairs(v) do
139 return commit(haveany and result or nil);
141 function keyval_store:set(username, data)
142 user,store = username,self.store;
144 local affected, err = setsql("DELETE FROM `Prosody` WHERE `host`=? AND `user`=? AND `store`=?");
146 if data and next(data) ~= nil then
147 local extradata = {};
148 for key, value in pairs(data) do
149 if type(key) == "string" and key ~= "" then
150 local t, value = serialize(value);
151 if not t then return rollback(t, value); end
152 local ok, err = setsql("INSERT INTO `Prosody` (`host`,`user`,`store`,`key`,`type`,`value`) VALUES (?,?,?,?,?,?)", key, t, value);
153 if not ok then return rollback(ok, err); end
155 extradata[key] = value;
158 if next(extradata) ~= nil then
159 local t, extradata = serialize(extradata);
160 if not t then return rollback(t, extradata); end
161 local ok, err = setsql("INSERT INTO `Prosody` (`host`,`user`,`store`,`key`,`type`,`value`) VALUES (?,?,?,?,?,?)", "", t, extradata);
162 if not ok then return rollback(ok, err); end
168 local map_store = {};
169 map_store.__index = map_store;
170 function map_store:get(username, key)
171 user,store = username,self.store;
172 local stmt, err = getsql("SELECT * FROM `Prosody` WHERE `host`=? AND `user`=? AND `store`=? AND `key`=?", key or "");
173 if not stmt then return nil, err; end
177 for row in stmt:rows(true) do
180 local v = deserialize(row.type, row.value);
182 if k ~= "" then result[k] = v; elseif type(v) == "table" then
183 for a,b in pairs(v) do
189 return commit(haveany and result[key] or nil);
191 function map_store:set(username, key, data)
192 user,store = username,self.store;
194 local affected, err = setsql("DELETE FROM `Prosody` WHERE `host`=? AND `user`=? AND `store`=? AND `key`=?", key or "");
196 if data and next(data) ~= nil then
197 if type(key) == "string" and key ~= "" then
198 local t, value = serialize(data);
199 if not t then return rollback(t, value); end
200 local ok, err = setsql("INSERT INTO `Prosody` (`host`,`user`,`store`,`key`,`type`,`value`) VALUES (?,?,?,?,?,?)", key, t, value);
201 if not ok then return rollback(ok, err); end
203 -- TODO non-string keys
209 local list_store = {};
210 list_store.__index = list_store;
211 function list_store:scan(username, from, to, jid, typ)
212 user,store = username,self.store;
214 local cols = {"from", "to", "jid", "typ"};
215 local vals = { from , to , jid , typ };
217 local query = "SELECT * FROM `ProsodyArchive` WHERE `host`=? AND `user`=? AND `store`=?";
219 query = query.." ORDER BY time";
220 --local stmt, err = getsql("SELECT * FROM `Prosody` WHERE `host`=? AND `user`=? AND `store`=? AND `key`=?", key or "");
222 return nil, "not-implemented"
225 local driver = { name = "sql" };
227 function driver:open(store, typ)
228 if not typ then -- default key-value store
229 return setmetatable({ store = store }, keyval_store);
231 return nil, "unsupported-store";
234 module:add_item("data-driver", driver);