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-rw-r--r--plugins/mod_storage_internal.lua85
1 files changed, 85 insertions, 0 deletions
diff --git a/plugins/mod_storage_internal.lua b/plugins/mod_storage_internal.lua
index 294d823c..a5401f70 100644
--- a/plugins/mod_storage_internal.lua
+++ b/plugins/mod_storage_internal.lua
@@ -1,4 +1,9 @@
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 host = module.host;
@@ -35,4 +40,84 @@ function keyval:users()
return datamanager.users(host, self.store, self.type);
end
+local archive = {};
+driver.archive = { __index = archive };
+
+function archive:append(username, key, value, when, with)
+ key = key or id();
+ when = when or now();
+ if not st.is_stanza(value) then
+ return nil, "unsupported-datatype";
+ end
+ value = st.preserialize(st.clone(value));
+ value.key = key;
+ value.when = when;
+ value.with = with;
+ value.attr.stamp = datetime.datetime(when);
+ value.attr.stamp_legacy = datetime.legacy(when);
+ local ok, err = datamanager.list_append(username, host, self.store, value);
+ if not ok then return ok, err; end
+ return key;
+end
+
+function archive:find(username, query)
+ local items, err = datamanager.list_load(username, host, self.store);
+ if not items then return items, err; end
+ local count = #items;
+ local i = 0;
+ if query then
+ items = array(items);
+ 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
+
module:provides("storage", driver);