File

tools/migration/prosody-migrator.lua @ 11749:83d6d6a70edf

net.http: fail open if surrounding code does not configure TLS Previously, if surrounding code was not configuring the TLS context used default in net.http, it would not validate certificates at all. This is not a security issue with prosody, because prosody updates the context with `verify = "peer"` as well as paths to CA certificates in util.startup.init_http_client. Nevertheless... Let's not leave this pitfall out there in the open.
author Jonas Schäfer <jonas@wielicki.name>
date Sun, 29 Aug 2021 15:04:47 +0200
parent 11731:076ceb405b94
child 12161:6e7678f6fe9a
line wrap: on
line source

#!/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 startup = require "util.startup";
do
	startup.parse_args();
	startup.init_global_state();
	prosody.process_type = "migrator";
	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("");
	print("Usage: "..arg[0].." FROM_STORE TO_STORE");
	print("If no stores are specified, 'input' and 'output' are used.");
	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
		return store:users();
	else
		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 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 origin = assert(input_driver:open(store, typ));
			local destination = assert(output_driver:open(store, typ));

			if typ == "keyval" then -- host data
				local data, err = origin:get(nil);
				assert(not err, err);
				assert(destination:set(nil, data));
			end

			for user in users(origin, host) do
				if typ == "keyval" then
					local data, err = origin:get(user);
					assert(not err, err);
					assert(destination:set(user, data));
				elseif typ == "archive" then
					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
				else
					error("Don't know how to migrate data of type '"..typ.."'.");
				end
			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");