File

tools/migration/prosody-migrator.lua @ 12319:8fc3c06f922d

prosodyctl: check dns: List discovered addresses for diagnostic purposes It is very common to get the "unknown address" warning with this command, but people do not always understand it, or know how to debug it. Now we clearly show the addresses that prosodyctl discovered.
author Matthew Wild <mwild1@gmail.com>
date Wed, 02 Mar 2022 16:02:42 +0000
parent 12168:33e856c65033
child 12387:05c250fa335a
line wrap: on
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#!/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         Incease log-level");
	print("");
	print("If no stores are specified, 'input' and 'output' are used.");
end

local startup = require "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 "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 "util.async";
local server = require "net.server";
local watchers = {
	error = function (_, err)
		error(err);
	end;
	waiting = function ()
		server.loop();
	end;
};

local cm = require "core.configmanager";
local hm = require "core.hostmanager";
local sm = require "core.storagemanager";
local um = require "core.usermanager";

local function users(store, host)
	if store.users then
		log("debug", "Using store user iterator")
		return store:users();
	else
		log("debug", "Using usermanagre 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
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 "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");