prosody-modules
5c2b96c4dde6
mod_mam/mod_mam.lua

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mod_mam/mod_mam.lua @ 706:5c2b96c4dde6

mod_mam: Enforce a max number of items returned, with a default.
author Kim Alvefur <zash@zash.se>
date Fri, 08 Jun 2012 21:01:44 +0200
parent 705:c9d0ba39a33b
child 707:f987c7b79008
comparison
equal deleted inserted replaced
705:c9d0ba39a33b 706:5c2b96c4dde6
19 local dm_list_append = require "util.datamanager".list_append; 19 local dm_list_append = require "util.datamanager".list_append;
20 local rm_load_roster = require "core.rostermanager".load_roster; 20 local rm_load_roster = require "core.rostermanager".load_roster;
21 21
22 local tostring = tostring; 22 local tostring = tostring;
23 local time_now = os.time; 23 local time_now = os.time;
24 local m_min = math.min;,
24 local timestamp, timestamp_parse = require "util.datetime".datetime, require "util.datetime".parse; 25 local timestamp, timestamp_parse = require "util.datetime".datetime, require "util.datetime".parse;
25 local uuid = require "util.uuid".generate; 26 local uuid = require "util.uuid".generate;
27 local default_max_items, max_max_items = 20, module:get_option_number("max_archive_query_results", 50);
26 local global_default_policy = module:get_option("default_archive_policy", false); 28 local global_default_policy = module:get_option("default_archive_policy", false);
27 -- TODO Should be possible to enforce it too 29 -- TODO Should be possible to enforce it too
30
28 31
29 -- For translating preference names from string to boolean and back 32 -- For translating preference names from string to boolean and back
30 local default_attrs = { 33 local default_attrs = {
31 always = true, [true] = "always", 34 always = true, [true] = "always",
32 never = false, [false] = "never", 35 never = false, [false] = "never",
135 end 138 end
136 return true 139 return true
137 end 140 end
138 141
139 -- RSM stuff 142 -- RSM stuff
143 local qmax = m_min(qset and qset.max or default_max_items, max_max_items);
140 local qset_matches = not (qset and qset.after); 144 local qset_matches = not (qset and qset.after);
141 local first, last, index; 145 local first, last, index;
142 local n = 0; 146 local n = 0;
143 local start = qset and qset.index or 1; 147 local start = qset and qset.index or 1;
144 148
187 if qset then 191 if qset then
188 if qset.after == id then 192 if qset.after == id then
189 module:log("debug", "Start of matching range found"); 193 module:log("debug", "Start of matching range found");
190 qset_matches = true; 194 qset_matches = true;
191 end 195 end
192 if qset.max and n >= qset.max then 196 if n >= qmax then
193 module:log("debug", "Max number of items matched"); 197 module:log("debug", "Max number of items matched");
194 break 198 break
195 end 199 end
196 end 200 end
197 end 201 end