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-rw-r--r--core/storagemanager.lua117
1 files changed, 101 insertions, 16 deletions
diff --git a/core/storagemanager.lua b/core/storagemanager.lua
index 1c82af6d..4f04e594 100644
--- a/core/storagemanager.lua
+++ b/core/storagemanager.lua
@@ -1,5 +1,5 @@
-local error, type, pairs = error, type, pairs;
+local type, pairs = type, pairs;
local setmetatable = setmetatable;
local config = require "core.configmanager";
@@ -11,11 +11,10 @@ local log = require "util.logger".init("storagemanager");
local prosody = prosody;
-module("storagemanager")
+local _ENV = nil;
local olddm = {}; -- maintain old datamanager, for backwards compatibility
for k,v in pairs(datamanager) do olddm[k] = v; end
-_M.olddm = olddm;
local null_storage_method = function () return false, "no data storage active"; end
local null_storage_driver = setmetatable(
@@ -23,7 +22,7 @@ local null_storage_driver = setmetatable(
name = "null",
open = function (self) return self; end
}, {
- __index = function (self, method)
+ __index = function (self, method) --luacheck: ignore 212
return null_storage_method;
end
}
@@ -31,13 +30,13 @@ local null_storage_driver = setmetatable(
local stores_available = multitable.new();
-function initialize_host(host)
+local function initialize_host(host)
local host_session = hosts[host];
host_session.events.add_handler("item-added/storage-provider", function (event)
local item = event.item;
stores_available:set(host, item.name, item);
end);
-
+
host_session.events.add_handler("item-removed/storage-provider", function (event)
local item = event.item;
stores_available:set(host, item.name, nil);
@@ -45,7 +44,7 @@ function initialize_host(host)
end
prosody.events.add_handler("host-activated", initialize_host, 101);
-function load_driver(host, driver_name)
+local function load_driver(host, driver_name)
if driver_name == "null" then
return null_storage_driver;
end
@@ -58,8 +57,28 @@ function load_driver(host, driver_name)
return stores_available:get(host, driver_name);
end
-function get_driver(host, store)
- local storage = config.get(host, "storage");
+local function get_storage_config(host)
+ -- COMPAT w/ unreleased Prosody 0.10 and the once-experimental mod_storage_sql2 in peoples' config files
+ local storage_config = config.get(host, "storage");
+ local found_sql2;
+ if storage_config == "sql2" then
+ storage_config, found_sql2 = "sql", true;
+ elseif type(storage_config) == "table" then
+ for store_name, driver_name in pairs(storage_config) do
+ if driver_name == "sql2" then
+ storage_config[store_name] = "sql";
+ found_sql2 = true;
+ end
+ end
+ end
+ if found_sql2 then
+ log("error", "The temporary 'sql2' storage module has now been renamed to 'sql', please update your config file: https://prosody.im/doc/modules/mod_storage_sql2");
+ end
+ return storage_config;
+end
+
+local function get_driver(host, store)
+ local storage = get_storage_config(host);
local driver_name;
local option_type = type(storage);
if option_type == "string" then
@@ -70,7 +89,7 @@ function get_driver(host, store)
if not driver_name then
driver_name = config.get(host, "default_storage") or "internal";
end
-
+
local driver = load_driver(host, driver_name);
if not driver then
log("warn", "Falling back to null driver for %s storage on %s", store, host);
@@ -80,11 +99,64 @@ function get_driver(host, store)
return driver, driver_name;
end
+local map_shim_mt = {
+ __index = {
+ get = function(self, username, key)
+ local ret, err = self.keyval_store:get(username);
+ if ret == nil then return nil, err end
+ return ret[key];
+ end;
+ set = function(self, username, key, data)
+ local current, err = self.keyval_store:get(username);
+ if current == nil then
+ if err then
+ return nil, err;
+ else
+ current = {};
+ end
+ end
+ current[key] = data;
+ return self.keyval_store:set(username, current);
+ end;
+ set_keys = function (self, username, keydatas)
+ local current, err = self.keyval_store:get(username);
+ if current == nil then
+ if err then
+ return nil, err;
+ else
+ current = keydatas;
+ end
+ else
+ for k,v in pairs(keydatas) do
+ if v == self.remove then v = nil; end
+ current[k] = v;
+ end
+ end
+ return self.keyval_store:set(username, current);
+ end;
+ remove = {};
+ };
+}
+
+local open;
+
+local function create_map_shim(host, store)
+ local keyval_store, err = open(host, store, "keyval");
+ if keyval_store == nil then return nil, err end
+ return setmetatable({
+ keyval_store = keyval_store;
+ }, map_shim_mt);
+end
+
function open(host, store, typ)
local driver, driver_name = get_driver(host, store);
local ret, err = driver:open(store, typ);
if not ret then
if err == "unsupported-store" then
+ if typ == "map" then -- Use shim on top of keyval store
+ log("debug", "map storage driver unavailable, using shim on top of keyval store.");
+ return create_map_shim(host, store);
+ end
log("debug", "Storage driver %s does not support store %s (%s), falling back to null driver",
driver_name, store, typ or "<nil>");
ret = null_storage_driver;
@@ -94,14 +166,19 @@ function open(host, store, typ)
return ret, err;
end
-function purge(user, host)
- local storage = config.get(host, "storage");
+local function purge(user, host)
+ local storage = get_storage_config(host);
if type(storage) == "table" then
-- multiple storage backends in use that we need to purge
local purged = {};
- for store, driver in pairs(storage) do
- if not purged[driver] then
- purged[driver] = get_driver(host, store):purge(user);
+ for store, driver_name in pairs(storage) do
+ if not purged[driver_name] then
+ local driver = get_driver(host, store);
+ if driver.purge then
+ purged[driver_name] = driver:purge(user);
+ else
+ log("warn", "Storage driver %s does not support removing all user data, you may need to delete it manually", driver_name);
+ end
end
end
end
@@ -132,4 +209,12 @@ function datamanager.purge(username, host)
return purge(username, host);
end
-return _M;
+return {
+ initialize_host = initialize_host;
+ load_driver = load_driver;
+ get_driver = get_driver;
+ open = open;
+ purge = purge;
+
+ olddm = olddm;
+};