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
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
|
local cache = require "util.cache";
local datamanager = require "core.storagemanager".olddm;
local array = require "util.array";
local datetime = require "util.datetime";
local st = require "util.stanza";
local now = require "util.time".now;
local id = require "util.id".medium;
local jid_join = require "util.jid".join;
local host = module.host;
local archive_item_limit = module:get_option_number("storage_archive_item_limit", 1000);
local archive_item_count_cache = cache.new(module:get_option("storage_archive_item_limit_cache_size", 1000));
local driver = {};
function driver:open(store, typ)
local mt = self[typ or "keyval"]
if not mt then
return nil, "unsupported-store";
end
return setmetatable({ store = store, type = typ }, mt);
end
function driver:stores(username) -- luacheck: ignore 212/self
return datamanager.stores(username, host);
end
function driver:purge(user) -- luacheck: ignore 212/self
return datamanager.purge(user, host);
end
local keyval = { };
driver.keyval = { __index = keyval };
function keyval:get(user)
return datamanager.load(user, host, self.store);
end
function keyval:set(user, data)
return datamanager.store(user, host, self.store, data);
end
function keyval:users()
return datamanager.users(host, self.store, self.type);
end
local archive = {};
driver.archive = { __index = archive };
archive.caps = {
total = true;
quota = archive_item_limit;
truncate = true;
};
function archive:append(username, key, value, when, with)
when = when or now();
if not st.is_stanza(value) then
return nil, "unsupported-datatype";
end
value = st.preserialize(st.clone(value));
value.when = when;
value.with = with;
value.attr.stamp = datetime.datetime(when);
value.attr.stamp_legacy = datetime.legacy(when);
local cache_key = jid_join(username, host, self.store);
local item_count = archive_item_count_cache:get(cache_key);
if key then
local items, err = datamanager.list_load(username, host, self.store);
if not items and err then return items, err; end
-- Check the quota
item_count = items and #items or 0;
archive_item_count_cache:set(cache_key, item_count);
if item_count >= archive_item_limit then
module:log("debug", "%s reached or over quota, not adding to store", username);
return nil, "quota-limit";
end
if items then
-- Filter out any item with the same key as the one being added
items = array(items);
items:filter(function (item)
return item.key ~= key;
end);
value.key = key;
items:push(value);
local ok, err = datamanager.list_store(username, host, self.store, items);
if not ok then return ok, err; end
archive_item_count_cache:set(cache_key, #items);
return key;
end
else
if not item_count then -- Item count not cached?
-- We need to load the list to get the number of items currently stored
local items, err = datamanager.list_load(username, host, self.store);
if not items and err then return items, err; end
item_count = items and #items or 0;
archive_item_count_cache:set(cache_key, item_count);
end
if item_count >= archive_item_limit then
module:log("debug", "%s reached or over quota, not adding to store", username);
return nil, "quota-limit";
end
key = id();
end
module:log("debug", "%s has %d items out of %d limit", username, item_count, archive_item_limit);
value.key = key;
local ok, err = datamanager.list_append(username, host, self.store, value);
if not ok then return ok, err; end
archive_item_count_cache:set(cache_key, item_count+1);
return key;
end
function archive:find(username, query)
local items, err = datamanager.list_load(username, host, self.store);
if not items then
if err then
return items, err;
else
return function () end, 0;
end
end
local count = #items;
local i = 0;
if query then
items = array(items);
if query.key then
items:filter(function (item)
return item.key == query.key;
end);
end
if query.with then
items:filter(function (item)
return item.with == query.with;
end);
end
if query.start then
items:filter(function (item)
return item.when >= query.start;
end);
end
if query["end"] then
items:filter(function (item)
return item.when <= query["end"];
end);
end
count = #items;
if query.reverse then
items:reverse();
if query.before then
for j = 1, count do
if (items[j].key or tostring(j)) == query.before then
i = j;
break;
end
end
end
elseif query.after then
for j = 1, count do
if (items[j].key or tostring(j)) == query.after then
i = j;
break;
end
end
end
if query.limit and #items - i > query.limit then
items[i+query.limit+1] = nil;
end
end
return function ()
i = i + 1;
local item = items[i];
if not item then return; end
local key = item.key or tostring(i);
local when = item.when or datetime.parse(item.attr.stamp);
local with = item.with;
item.key, item.when, item.with = nil, nil, nil;
item.attr.stamp = nil;
item.attr.stamp_legacy = nil;
item = st.deserialize(item);
return key, item, when, with;
end, count;
end
function archive:dates(username)
local items, err = datamanager.list_load(username, host, self.store);
if not items then return items, err; end
return array(items):pluck("when"):map(datetime.date):unique();
end
function archive:delete(username, query)
local cache_key = jid_join(username, host, self.store);
if not query or next(query) == nil then
archive_item_count_cache:set(cache_key, nil);
return datamanager.list_store(username, host, self.store, nil);
end
local items, err = datamanager.list_load(username, host, self.store);
if not items then
if err then
return items, err;
end
archive_item_count_cache:set(cache_key, 0);
-- Store is empty
return 0;
end
items = array(items);
local count_before = #items;
if query then
if query.key then
items:filter(function (item)
return item.key ~= query.key;
end);
end
if query.with then
items:filter(function (item)
return item.with ~= query.with;
end);
end
if query.start then
items:filter(function (item)
return item.when < query.start;
end);
end
if query["end"] then
items:filter(function (item)
return item.when > query["end"];
end);
end
if query.truncate and #items > query.truncate then
if query.reverse then
-- Before: { 1, 2, 3, 4, 5, }
-- After: { 1, 2, 3 }
for i = #items, query.truncate + 1, -1 do
items[i] = nil;
end
else
-- Before: { 1, 2, 3, 4, 5, }
-- After: { 3, 4, 5 }
local offset = #items - query.truncate;
for i = 1, #items do
items[i] = items[i+offset];
end
end
end
end
local count = count_before - #items;
if count == 0 then
return 0; -- No changes, skip write
end
local ok, err = datamanager.list_store(username, host, self.store, items);
if not ok then return ok, err; end
archive_item_count_cache:set(cache_key, #items);
return count;
end
module:provides("storage", driver);
|
