1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
|
--[[
DB Tables:
Prosody - key-value, map
| host | user | store | key | subkey | type | value |
ProsodyArchive - list
| host | user | store | key | time | stanzatype | jsonvalue |
Mapping:
Roster - Prosody
| host | user | "roster" | "contactjid" | item-subkey | type | value |
| host | user | "roster" | NULL | NULL | "json" | roster[false] data |
Account - Prosody
| host | user | "accounts" | "username" | NULL | type | value |
Offline - ProsodyArchive
| host | user | "offline" | "contactjid" | time | "message" | json|XML |
]]
local type = type;
local tostring = tostring;
local tonumber = tonumber;
local pairs = pairs;
local next = next;
local setmetatable = setmetatable;
local json = { stringify = function(s) return require"util.serialization".serialize(s) end, parse = require"util.serialization".deserialize };
local connection = ...;
local host,user,store = module.host;
do -- process options to get a db connection
local DBI = require "DBI";
local params = module:get_option("sql") or { driver = "SQLite3", database = "prosody.sqlite" };
assert(params and params.driver and params.database, "invalid params");
prosody.unlock_globals();
local dbh, err = DBI.Connect(
params.driver, params.database,
params.username, params.password,
params.host, params.port
);
prosody.lock_globals();
assert(dbh, err);
dbh:autocommit(false); -- don't commit automatically
connection = dbh;
if params.driver == "SQLite3" then -- auto initialize
local stmt = assert(connection:prepare("SELECT COUNT(*) FROM sqlite_master WHERE type='table' AND name='Prosody';"));
local ok = assert(stmt:execute());
local count = stmt:fetch()[1];
if count == 0 then
local stmt = assert(connection:prepare("CREATE TABLE Prosody (host TEXT, user TEXT, store TEXT, key TEXT, subkey TEXT, type TEXT, value TEXT);"));
assert(stmt:execute());
assert(connection:commit());
module:log("debug", "Initialized new SQLite3 database");
end
--print("===", json.stringify())
end
end
local function serialize(value)
local t = type(value);
if t == "string" or t == "boolean" or t == "number" then
return t, tostring(value);
elseif t == "table" then
local value,err = json.stringify(value);
if value then return "json", value; end
return nil, err;
end
return nil, "Unhandled value type: "..t;
end
local function deserialize(t, value)
if t == "string" then return value;
elseif t == "boolean" then
if value == "true" then return true;
elseif value == "false" then return false; end
elseif t == "number" then return tonumber(value);
elseif t == "json" then
return json.parse(value);
end
end
local function getsql(sql, ...)
-- do prepared statement stuff
local stmt, err = connection:prepare(sql);
if not stmt then return nil, err; end
-- run query
local ok, err = stmt:execute(host, user, store, ...);
if not ok then return nil, err; end
return stmt;
end
local function setsql(sql, ...)
local stmt, err = getsql(sql, ...);
if not stmt then return stmt, err; end
return stmt:affected();
end
local function transact(...)
-- ...
end
local function rollback(...)
connection:rollback(); -- FIXME check for rollback error?
return ...;
end
local function commit(...)
if not connection:commit() then return nil, "SQL commit failed"; end
return ...;
end
local keyval_store = {};
keyval_store.__index = keyval_store;
function keyval_store:get(username)
user,store = username,self.store;
local stmt, err = getsql("SELECT * FROM Prosody WHERE host IS ? AND user IS ? AND store IS ? AND subkey IS NULL");
if not stmt then return nil, err; end
local haveany;
local result = {};
for row in stmt:rows(true) do
haveany = true;
local k = row.key;
local v = deserialize(row.type, row.value);
if v then
if k then result[k] = v; elseif type(v) == "table" then
for a,b in pairs(v) do
result[a] = b;
end
end
end
end
return haveany and result or nil;
end
function keyval_store:set(username, data)
user,store = username,self.store;
-- start transaction
local affected, err = setsql("DELETE FROM Prosody WHERE host IS ? AND user IS ? AND store IS ? AND subkey IS NULL");
if data and next(data) ~= nil then
local extradata = {};
for key, value in pairs(data) do
if type(key) == "string" then
local t, value = serialize(value);
if not t then return rollback(t, value); end
local ok, err = setsql("INSERT INTO Prosody (host,user,store,key,type,value) VALUES (?,?,?,?,?,?)", key, t, value);
if not ok then return rollback(ok, err); end
else
extradata[key] = value;
end
end
if next(extradata) ~= nil then
local t, extradata = serialize(extradata);
if not t then return rollback(t, extradata); end
local ok, err = setsql("INSERT INTO Prosody (host,user,store,key,type,value) VALUES (?,?,?,?,?,?)", nil, t, extradata);
if not ok then return rollback(ok, err); end
end
end
return commit(true);
end
local map_store = {};
map_store.__index = map_store;
function map_store:get(username, key)
user,store = username,self.store;
local stmt, err = getsql("SELECT * FROM Prosody WHERE host IS ? AND user IS ? AND store IS ? AND key IS ?", key);
if not stmt then return nil, err; end
local haveany;
local result = {};
for row in stmt:rows(true) do
haveany = true;
local k = row.subkey;
local v = deserialize(row.type, row.value);
if v then
if k then result[k] = v; elseif type(v) == "table" then
for a,b in pairs(v) do
result[a] = b;
end
end
end
end
return haveany and result or nil;
end
function map_store:set(username, key, data)
user,store = username,self.store;
-- start transaction
local affected, err = setsql("DELETE FROM Prosody WHERE host IS ? AND user IS ? AND store IS ? AND key IS ?", key);
if data and next(data) ~= nil then
local extradata = {};
for subkey, value in pairs(data) do
if type(subkey) == "string" then
local t, value = serialize(value);
if not t then return rollback(t, value); end
local ok, err = setsql("INSERT INTO Prosody (host,user,store,key,subkey,type,value) VALUES (?,?,?,?,?,?)", key, subkey, t, value);
if not ok then return rollback(ok, err); end
else
extradata[subkey] = value;
end
end
if next(extradata) ~= nil then
local t, extradata = serialize(extradata);
if not t then return rollback(t, extradata); end
local ok, err = setsql("INSERT INTO Prosody (host,user,store,key,subkey,type,value) VALUES (?,?,?,?,?,?)", key, nil, t, extradata);
if not ok then return rollback(ok, err); end
end
end
return commit(true);
end
local list_store = {};
list_store.__index = list_store;
function list_store:scan(username, from, to, jid, typ)
user,store = username,self.store;
local cols = {"from", "to", "jid", "typ"};
local vals = { from , to , jid , typ };
local stmt, err;
local query = "SELECT * FROM ProsodyArchive WHERE host IS ? AND user IS ? AND store IS ?";
query = query.." ORDER BY time";
--local stmt, err = getsql("SELECT * FROM Prosody WHERE host IS ? AND user IS ? AND store IS ? AND key IS ?", key);
return nil, "not-implemented"
end
local driver = { name = "sql" };
function driver:open(store, typ)
if not typ then -- default key-value store
return setmetatable({ store = store }, keyval_store);
end
return nil, "unsupported-store";
end
module:add_item("data-driver", driver);
|
