Merge 0.9->0.10

[prosody.git] / core / storagemanager.lua

diff --git a/core/storagemanager.lua b/core/storagemanager.lua
index 1b76a394569961d2ad5803b652d5d9f454c61f18..fb868d03e574db9d92ad23b062e7a06ceb0296ea 100644 (file)
--- 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
        }
@@ -31,21 +30,21 @@ 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/data-driver", function (event)
+       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/data-driver", function (event)
+
+       host_session.events.add_handler("item-removed/storage-provider", function (event)
                local item = event.item;
                stores_available:set(host, item.name, nil);
        end);
 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 +57,8 @@ function load_driver(host, driver_name)
        return stores_available:get(host, driver_name);
 end
 
-function get_driver(host, store)
-       local storage = config.get(host, "core", "storage");
+local function get_driver(host, store)
+       local storage = config.get(host, "storage");
        local driver_name;
        local option_type = type(storage);
        if option_type == "string" then
@@ -68,9 +67,9 @@ function get_driver(host, store)
                driver_name = storage[store];
        end
        if not driver_name then
-               driver_name = config.get(host, "core", "default_storage") or "internal";
+               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);
@@ -80,13 +79,13 @@ function get_driver(host, store)
        return driver, driver_name;
 end
 
-function open(host, store, typ)
+local 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
                        log("debug", "Storage driver %s does not support store %s (%s), falling back to null driver",
-                               driver_name, store, typ);
+                               driver_name, store, typ or "<nil>");
                        ret = null_storage_driver;
                        err = nil;
                end
@@ -94,17 +93,55 @@ function open(host, store, typ)
        return ret, err;
 end
 
+local function purge(user, host)
+       local storage = config.get(host, "storage");
+       if type(storage) == "table" then
+               -- multiple storage backends in use that we need to purge
+               local purged = {};
+               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
+       get_driver(host):purge(user); -- and the default driver
+
+       olddm.purge(user, host); -- COMPAT list stores, like offline messages end up in the old datamanager
+
+       return true;
+end
+
 function datamanager.load(username, host, datastore)
        return open(host, datastore):get(username);
 end
 function datamanager.store(username, host, datastore, data)
        return open(host, datastore):set(username, data);
 end
-function datamanager.list_stores(username, host)
-       return get_driver(host):list_stores(username);
+function datamanager.users(host, datastore, typ)
+       local driver = open(host, datastore, typ);
+       if not driver.users then
+               return function() log("warn", "storage driver %s does not support listing users", driver.name) end
+       end
+       return driver:users();
+end
+function datamanager.stores(username, host, typ)
+       return get_driver(host):stores(username, typ);
 end
 function datamanager.purge(username, host)
-       return get_driver(host):purge(username);
+       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;
+};