util.startup: Check root after detecting platform and reading config (thanks SigmaTel71)
Ensures that startup.detect_platform() runs so know whether to use the
POSIX method of checking the current user or something else. Also after
reading the config so we know whether the root override setting is set.
#!/usr/bin/env lua
CFG_SOURCEDIR=CFG_SOURCEDIR or os.getenv("PROSODY_SRCDIR");
CFG_CONFIGDIR=CFG_CONFIGDIR or os.getenv("PROSODY_CFGDIR");
CFG_PLUGINDIR=CFG_PLUGINDIR or os.getenv("PROSODY_PLUGINDIR");
CFG_DATADIR=CFG_DATADIR or os.getenv("PROSODY_DATADIR");
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
local function is_relative(path)
local path_sep = package.config:sub(1,1);
return ((path_sep == "/" and path:sub(1,1) ~= "/")
or (path_sep == "\\" and (path:sub(1,1) ~= "/" and path:sub(2,3) ~= ":\\")))
end
-- Tell Lua where to find our libraries
if CFG_SOURCEDIR then
local function filter_relative_paths(path)
if is_relative(path) then return ""; end
end
local function sanitise_paths(paths)
return (paths:gsub("[^;]+;?", filter_relative_paths):gsub(";;+", ";"));
end
package.path = sanitise_paths(CFG_SOURCEDIR.."/?.lua;"..package.path);
package.cpath = sanitise_paths(CFG_SOURCEDIR.."/?.so;"..package.cpath);
end
-- Substitute ~ with path to home directory in data path
if CFG_DATADIR then
if os.getenv("HOME") then
CFG_DATADIR = CFG_DATADIR:gsub("^~", os.getenv("HOME"));
end
end
local default_config = (CFG_CONFIGDIR or ".").."/migrator.cfg.lua";
local function usage()
print("Usage: " .. arg[0] .. " [OPTIONS] FROM_STORE TO_STORE");
print(" --config FILE Specify config file")
print(" --keep-going Keep going in case of errors");
print(" -v, --verbose Increase log-level");
print("");
print("If no stores are specified, 'input' and 'output' are used.");
end
if not pcall(require, "prosody.loader") then
pcall(require, "loader");
end
local startup = require "prosody.util.startup";
do
startup.parse_args({
short_params = { v = "verbose", h = "help", ["?"] = "help" };
value_params = { config = true };
});
startup.init_global_state();
prosody.process_type = "migrator";
if prosody.opts.help then
usage();
os.exit(0);
end
startup.force_console_logging();
startup.init_logging();
startup.init_gc();
startup.init_errors();
startup.setup_plugindir();
startup.setup_plugin_install_path();
startup.setup_datadir();
startup.chdir();
startup.read_version();
startup.switch_user();
startup.check_dependencies();
startup.log_startup_warnings();
prosody.config_loaded = true;
startup.load_libraries();
startup.init_http_client();
prosody.core_post_stanza = function ()
-- silence assert in core.moduleapi
error("Attempt to send stanzas from inside migrator.", 0);
end
end
-- Command-line parsing
local options = prosody.opts;
local envloadfile = require "prosody.util.envload".envloadfile;
local config_file = options.config or default_config;
local from_store = arg[1] or "input";
local to_store = arg[2] or "output";
config = {};
local config_env = setmetatable({}, { __index = function(t, k) return function(tbl) config[k] = tbl; end; end });
local config_chunk, err = envloadfile(config_file, config_env);
if not config_chunk then
print("There was an error loading the config file, check that the file exists");
print("and that the syntax is correct:");
print("", err);
os.exit(1);
end
config_chunk();
local have_err;
if #arg > 0 and #arg ~= 2 then
have_err = true;
print("Error: Incorrect number of parameters supplied.");
end
if not config[from_store] then
have_err = true;
print("Error: Input store '"..from_store.."' not found in the config file.");
end
if not config[to_store] then
have_err = true;
print("Error: Output store '"..to_store.."' not found in the config file.");
end
for store, conf in pairs(config) do -- COMPAT
if conf.type == "prosody_files" then
conf.type = "internal";
elseif conf.type == "prosody_sql" then
conf.type = "sql";
end
end
if have_err then
print("");
usage();
print("");
print("The available stores in your migrator config are:");
print("");
for store in pairs(config) do
print("", store);
end
print("");
os.exit(1);
end
local async = require "prosody.util.async";
local server = require "prosody.net.server";
local watchers = {
error = function (_, err)
error(err);
end;
waiting = function ()
server.loop();
end;
};
local cm = require "prosody.core.configmanager";
local hm = require "prosody.core.hostmanager";
local sm = require "prosody.core.storagemanager";
local um = require "prosody.core.usermanager";
local function users(store, host)
if store.users then
log("debug", "Using store user iterator")
return store:users();
else
log("debug", "Using usermanager user iterator")
return um.users(host);
end
end
local function prepare_config(host, conf)
if conf.type == "internal" then
sm.olddm.set_data_path(conf.path or prosody.paths.data);
elseif conf.type == "sql" then
cm.set(host, "sql", conf);
end
if type(conf.config) == "table" then
for option, value in pairs(conf.config) do
cm.set(host, option, value);
end
end
end
local function get_driver(host, conf)
prepare_config(host, conf);
return assert(sm.load_driver(host, conf.type));
end
local migrate_once = {
keyval = function(origin, destination, user)
local data, err = origin:get(user);
assert(not err, err);
assert(destination:set(user, data));
end;
archive = function(origin, destination, user)
local iter, err = origin:find(user);
assert(iter, err);
for id, item, when, with in iter do
assert(destination:append(user, id, item, when, with));
end
end;
}
migrate_once.pubsub = function(origin, destination, user, prefix, input_driver, output_driver)
if not user and prefix == "pubsub_" then return end
local data, err = origin:get(user);
assert(not err, err);
if not data then return end
assert(destination:set(user, data));
if prefix == "pubsub_" then user = nil end
for node in pairs(data) do
local pep_origin = assert(input_driver:open(prefix .. node, "archive"));
local pep_destination = assert(output_driver:open(prefix .. node, "archive"));
migrate_once.archive(pep_origin, pep_destination, user);
end
end
if options["keep-going"] then
local xpcall = require "prosody.util.xpcall".xpcall;
for t, f in pairs(migrate_once) do
migrate_once[t] = function (origin, destination, user, ...)
local function log_err(err)
if user then
log("error", "Error migrating data for user %q: %s", user, err);
else
log("error", "Error migrating data for host: %s", err);
end
log("debug", "%s", debug.traceback(nil, 2));
end
xpcall(f, log_err, origin, destination, user, ...);
end
end
end
local migration_runner = async.runner(function (job)
for host, stores in pairs(job.input.hosts) do
prosody.hosts[host] = startup.make_host(host);
sm.initialize_host(host);
um.initialize_host(host);
local input_driver = get_driver(host, job.input);
local output_driver = get_driver(host, job.output);
for _, store in ipairs(stores) do
local p, typ = store:match("()%-(%w+)$");
if typ then store = store:sub(1, p-1); else typ = "keyval"; end
log("info", "Migrating host %s store %s (%s)", host, store, typ);
local migrate = assert(migrate_once[typ], "Unknown store type: "..typ);
local prefix = store .. "_";
if typ == "pubsub" then typ = "keyval"; end
if store == "pubsub_nodes" then prefix = "pubsub_"; end
local origin = assert(input_driver:open(store, typ));
local destination = assert(output_driver:open(store, typ));
migrate(origin, destination, nil, prefix, input_driver, output_driver); -- host data
for user in users(origin, host) do
log("info", "Migrating user %s@%s store %s (%s)", user, host, store, typ);
migrate(origin, destination, user, prefix, input_driver, output_driver);
end
end
end
end, watchers);
io.stderr:write("Migrating...\n");
migration_runner:run({ input = config[from_store], output = config[to_store] });
io.stderr:write("Done!\n");