diff options
author | Matthew Wild <mwild1@gmail.com> | 2012-04-24 21:59:20 +0100 |
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committer | Matthew Wild <mwild1@gmail.com> | 2012-04-24 21:59:20 +0100 |
commit | 15175bb828ab14cf0f35b221227beeeb46e4dd8f (patch) | |
tree | fe8c013599dd847f7365cb1adab80ab8fe846de5 | |
parent | a5efef5aab5624e3a1cb4f1966e719738b859eda (diff) | |
parent | 7cb22f77a78741a1bd085c6b3dc3b31f51c1fa09 (diff) | |
download | prosody-15175bb828ab14cf0f35b221227beeeb46e4dd8f.tar.gz prosody-15175bb828ab14cf0f35b221227beeeb46e4dd8f.zip |
Merge timber->trunk - thanks everyone!
46 files changed, 2928 insertions, 2100 deletions
@@ -32,12 +32,8 @@ install: prosody.install prosodyctl.install prosody.cfg.lua.install util/encodin install -m644 util/*.so $(SOURCE)/util install -d $(SOURCE)/util/sasl install -m644 util/sasl/* $(SOURCE)/util/sasl - install -m644 plugins/*.lua $(MODULES) - install -d $(MODULES)/muc - install -m644 plugins/muc/* $(MODULES)/muc + umask 0022 && cp -r plugins/* $(MODULES) install -m644 certs/* $(CONFIG)/certs - install -d $(MODULES)/adhoc - install -m644 plugins/adhoc/*.lua $(MODULES)/adhoc install -m644 man/prosodyctl.man $(MAN)/man1/prosodyctl.1 test -e $(CONFIG)/prosody.cfg.lua || install -m644 prosody.cfg.lua.install $(CONFIG)/prosody.cfg.lua test -e prosody.version && install prosody.version $(SOURCE)/prosody.version || true diff --git a/core/certmanager.lua b/core/certmanager.lua index 8b82ac47..cccf3098 100644 --- a/core/certmanager.lua +++ b/core/certmanager.lua @@ -35,7 +35,7 @@ function create_context(host, mode, user_ssl_config) mode = mode; protocol = user_ssl_config.protocol or "sslv23"; key = resolve_path(config_path, user_ssl_config.key); - password = user_ssl_config.password; + password = user_ssl_config.password or function() log("error", "Encrypted certificate for %s requires 'ssl' 'password' to be set in config", host); end; certificate = resolve_path(config_path, user_ssl_config.certificate); capath = resolve_path(config_path, user_ssl_config.capath or default_capath); cafile = resolve_path(config_path, user_ssl_config.cafile); diff --git a/core/configmanager.lua b/core/configmanager.lua index 85919492..e2253171 100644 --- a/core/configmanager.lua +++ b/core/configmanager.lua @@ -41,6 +41,9 @@ function getconfig() end function get(host, section, key) + if not key then + section, key = "core", section; + end local sec = config[host][section]; if sec then return sec[key]; diff --git a/core/loggingmanager.lua b/core/loggingmanager.lua index 426425c1..56a3ee2c 100644 --- a/core/loggingmanager.lua +++ b/core/loggingmanager.lua @@ -48,34 +48,12 @@ local logging_levels = { "debug", "info", "warn", "error" } local function add_rule(sink_config) local sink_maker = log_sink_types[sink_config.to]; if sink_maker then - if sink_config.levels and not sink_config.source then - -- Create sink - local sink = sink_maker(sink_config); - - -- Set sink for all chosen levels - for level in pairs(get_levels(sink_config.levels)) do - logger.add_level_sink(level, sink); - end - elseif sink_config.source and not sink_config.levels then - logger.add_name_sink(sink_config.source, sink_maker(sink_config)); - elseif sink_config.source and sink_config.levels then - local levels = get_levels(sink_config.levels); - local sink = sink_maker(sink_config); - logger.add_name_sink(sink_config.source, - function (name, level, ...) - if levels[level] then - return sink(name, level, ...); - end - end); - else - -- All sources - -- Create sink - local sink = sink_maker(sink_config); - - -- Set sink for all levels - for _, level in pairs(logging_levels) do - logger.add_level_sink(level, sink); - end + -- Create sink + local sink = sink_maker(sink_config); + + -- Set sink for all chosen levels + for level in pairs(get_levels(sink_config.levels or logging_levels)) do + logger.add_level_sink(level, sink); end else -- No such sink type diff --git a/core/moduleapi.lua b/core/moduleapi.lua new file mode 100644 index 00000000..d16ee410 --- /dev/null +++ b/core/moduleapi.lua @@ -0,0 +1,326 @@ +-- Prosody IM +-- Copyright (C) 2008-2012 Matthew Wild +-- Copyright (C) 2008-2012 Waqas Hussain +-- +-- This project is MIT/X11 licensed. Please see the +-- COPYING file in the source package for more information. +-- + +local config = require "core.configmanager"; +local modulemanager = require "modulemanager"; +local array = require "util.array"; +local set = require "util.set"; +local logger = require "util.logger"; +local pluginloader = require "util.pluginloader"; + +local multitable_new = require "util.multitable".new; + +local t_insert, t_remove, t_concat = table.insert, table.remove, table.concat; +local error, setmetatable, setfenv, type = error, setmetatable, setfenv, type; +local ipairs, pairs, select, unpack = ipairs, pairs, select, unpack; +local tonumber, tostring = tonumber, tostring; + +local prosody = prosody; +local hosts = prosody.hosts; +local core_post_stanza = prosody.core_post_stanza; + +-- Registry of shared module data +local shared_data = setmetatable({}, { __mode = "v" }); + +local NULL = {}; + +local api = {}; + +-- Returns the name of the current module +function api:get_name() + return self.name; +end + +-- Returns the host that the current module is serving +function api:get_host() + return self.host; +end + +function api:get_host_type() + return hosts[self.host].type; +end + +function api:set_global() + self.host = "*"; + -- Update the logger + local _log = logger.init("mod_"..self.name); + self.log = function (self, ...) return _log(...); end; + self._log = _log; + self.global = true; +end + +function api:add_feature(xmlns) + self:add_item("feature", xmlns); +end +function api:add_identity(category, type, name) + self:add_item("identity", {category = category, type = type, name = name}); +end +function api:add_extension(data) + self:add_item("extension", data); +end + +function api:fire_event(...) + return (hosts[self.host] or prosody).events.fire_event(...); +end + +function api:hook_object_event(object, event, handler, priority) + self.event_handlers[handler] = { name = event, priority = priority, object = object }; + return object.add_handler(event, handler, priority); +end + +function api:hook(event, handler, priority) + return self:hook_object_event((hosts[self.host] or prosody).events, event, handler, priority); +end + +function api:hook_global(event, handler, priority) + return self:hook_object_event(prosody.events, event, handler, priority); +end + +function api:hook_stanza(xmlns, name, handler, priority) + if not handler and type(name) == "function" then + -- If only 2 options then they specified no xmlns + xmlns, name, handler, priority = nil, xmlns, name, handler; + elseif not (handler and name) then + self:log("warn", "Error: Insufficient parameters to module:hook_stanza()"); + return; + end + return self:hook("stanza/"..(xmlns and (xmlns..":") or "")..name, function (data) return handler(data.origin, data.stanza, data); end, priority); +end + +function api:require(lib) + local f, n = pluginloader.load_code(self.name, lib..".lib.lua"); + if not f then + f, n = pluginloader.load_code(lib, lib..".lib.lua"); + end + if not f then error("Failed to load plugin library '"..lib.."', error: "..n); end -- FIXME better error message + setfenv(f, self.environment); + return f(); +end + +function api:depends(name) + if not self.dependencies then + self.dependencies = {}; + self:hook("module-reloaded", function (event) + if self.dependencies[event.module] then + self:log("info", "Auto-reloading due to reload of %s:%s", event.host, event.module); + modulemanager.reload(self.host, self.name); + return; + end + end); + self:hook("module-unloaded", function (event) + if self.dependencies[event.module] then + self:log("info", "Auto-unloading due to unload of %s:%s", event.host, event.module); + modulemanager.unload(self.host, self.name); + end + end); + end + local mod = modulemanager.get_module(self.host, name) or modulemanager.get_module("*", name); + if mod and mod.module.host == "*" and modulemanager.module_has_method(mod, "add_host") then + mod = nil; -- This is a shared module, so we still want to load it on our host + end + if not mod then + local err; + mod, err = modulemanager.load(self.host, name); + if not mod then + return error(("Unable to load required module, mod_%s: %s"):format(name, ((err or "unknown error"):gsub("%-", " ")) )); + end + end + self.dependencies[name] = true; + return mod; +end + +-- Returns one or more shared tables at the specified virtual paths +-- Intentionally does not allow the table at a path to be _set_, it +-- is auto-created if it does not exist. +function api:shared(...) + if not self.shared_data then self.shared_data = {}; end + local paths = { n = select("#", ...), ... }; + local data_array = {}; + local default_path_components = { self.host, self.name }; + for i = 1, paths.n do + local path = paths[i]; + if path:sub(1,1) ~= "/" then -- Prepend default components + local n_components = select(2, path:gsub("/", "%1")); + path = (n_components<#default_path_components and "/" or "")..t_concat(default_path_components, "/", 1, #default_path_components-n_components).."/"..path; + end + local shared = shared_data[path]; + if not shared then + shared = {}; + shared_data[path] = shared; + end + t_insert(data_array, shared); + self.shared_data[path] = shared; + end + return unpack(data_array); +end + +function api:get_option(name, default_value) + local value = config.get(self.host, self.name, name); + if value == nil then + value = config.get(self.host, "core", name); + if value == nil then + value = default_value; + end + end + return value; +end + +function api:get_option_string(name, default_value) + local value = self:get_option(name, default_value); + if type(value) == "table" then + if #value > 1 then + self:log("error", "Config option '%s' does not take a list, using just the first item", name); + end + value = value[1]; + end + if value == nil then + return nil; + end + return tostring(value); +end + +function api:get_option_number(name, ...) + local value = self:get_option(name, ...); + if type(value) == "table" then + if #value > 1 then + self:log("error", "Config option '%s' does not take a list, using just the first item", name); + end + value = value[1]; + end + local ret = tonumber(value); + if value ~= nil and ret == nil then + self:log("error", "Config option '%s' not understood, expecting a number", name); + end + return ret; +end + +function api:get_option_boolean(name, ...) + local value = self:get_option(name, ...); + if type(value) == "table" then + if #value > 1 then + self:log("error", "Config option '%s' does not take a list, using just the first item", name); + end + value = value[1]; + end + if value == nil then + return nil; + end + local ret = value == true or value == "true" or value == 1 or nil; + if ret == nil then + ret = (value == false or value == "false" or value == 0); + if ret then + ret = false; + else + ret = nil; + end + end + if ret == nil then + self:log("error", "Config option '%s' not understood, expecting true/false", name); + end + return ret; +end + +function api:get_option_array(name, ...) + local value = self:get_option(name, ...); + + if value == nil then + return nil; + end + + if type(value) ~= "table" then + return array{ value }; -- Assume any non-list is a single-item list + end + + return array():append(value); -- Clone +end + +function api:get_option_set(name, ...) + local value = self:get_option_array(name, ...); + + if value == nil then + return nil; + end + + return set.new(value); +end + +local module_items = multitable_new(); +function api:add_item(key, value) + self.items = self.items or {}; + self.items[key] = self.items[key] or {}; + t_insert(self.items[key], value); + self:fire_event("item-added/"..key, {source = self, item = value}); +end +function api:remove_item(key, value) + local t = self.items and self.items[key] or NULL; + for i = #t,1,-1 do + if t[i] == value then + t_remove(self.items[key], i); + self:fire_event("item-removed/"..key, {source = self, item = value}); + return value; + end + end +end + +function api:get_host_items(key) + local result = {}; + for mod_name, module in pairs(modulemanager.get_modules(self.host)) do + module = module.module; + if module.items then + for _, item in ipairs(module.items[key] or NULL) do + t_insert(result, item); + end + end + end + for mod_name, module in pairs(modulemanager.get_modules("*")) do + module = module.module; + if module.items then + for _, item in ipairs(module.items[key] or NULL) do + t_insert(result, item); + end + end + end + return result; +end + +function api:handle_items(type, added_cb, removed_cb, existing) + self:hook("item-added/"..type, added_cb); + self:hook("item-removed/"..type, removed_cb); + if existing ~= false then + for _, item in ipairs(self:get_host_items(type)) do + added_cb({ item = item }); + end + end +end + +function api:provides(name, item) + if not item then item = self.environment; end + if not item.name then + local item_name = self.name; + -- Strip a provider prefix to find the item name + -- (e.g. "auth_foo" -> "foo" for an auth provider) + if item_name:find(name.."_", 1, true) == 1 then + item_name = item_name:sub(#name+2); + end + item.name = item_name; + end + self:add_item(name.."-provider", item); +end + +function api:send(stanza) + return core_post_stanza(hosts[self.host], stanza); +end + +function api:add_timer(delay, callback) + return timer.add_task(delay, function (t) + if self.loaded == false then return; end + return callback(t); + end); +end + +return api; diff --git a/core/modulemanager.lua b/core/modulemanager.lua index c4d95695..bf1e1924 100644 --- a/core/modulemanager.lua +++ b/core/modulemanager.lua @@ -9,13 +9,10 @@ local logger = require "util.logger"; local log = logger.init("modulemanager"); local config = require "core.configmanager"; -local multitable_new = require "util.multitable".new; -local st = require "util.stanza"; local pluginloader = require "util.pluginloader"; local hosts = hosts; local prosody = prosody; -local prosody_events = prosody.events; local loadfile, pcall, xpcall = loadfile, pcall, xpcall; local setmetatable, setfenv, getfenv = setmetatable, setfenv, getfenv; @@ -37,7 +34,7 @@ end local array, set = require "util.array", require "util.set"; -local autoload_modules = {"presence", "message", "iq", "offline"}; +local autoload_modules = {"presence", "message", "iq", "offline", "c2s", "s2s"}; local component_inheritable_modules = {"tls", "dialback", "iq"}; -- We need this to let modules access the real global namespace @@ -45,15 +42,11 @@ local _G = _G; module "modulemanager" -api = {}; -local api = api; -- Module API container +local api = _G.require "core.moduleapi"; -- Module API container +-- [host] = { [module] = module_env } local modulemap = { ["*"] = {} }; -local modulehelpers = setmetatable({}, { __index = _G }); - -local hooks = multitable_new(); - local NULL = {}; -- Load modules when a host is activated @@ -88,24 +81,74 @@ function load_modules_for_host(host) load(host, module); end end -prosody_events.add_handler("host-activated", load_modules_for_host); --- +prosody.events.add_handler("host-activated", load_modules_for_host); + +--- Private helpers --- + +local function do_unload_module(host, name) + local mod = get_module(host, name); + if not mod then return nil, "module-not-loaded"; end + + if module_has_method(mod, "unload") then + local ok, err = call_module_method(mod, "unload"); + if (not ok) and err then + log("warn", "Non-fatal error unloading module '%s' on '%s': %s", name, host, err); + end + end + + for handler, event in pairs(mod.module.event_handlers) do + event.object.remove_handler(event.name, handler); + end + + if mod.module.items then -- remove items + local events = (host == "*" and prosody.events) or hosts[host].events; + for key,t in pairs(mod.module.items) do + for i = #t,1,-1 do + local value = t[i]; + t[i] = nil; + events.fire_event("item-removed/"..key, {source = mod.module, item = value}); + end + end + end + mod.module.loaded = false; + modulemap[host][name] = nil; + return true; +end -function load(host, module_name, config) +local function do_load_module(host, module_name) if not (host and module_name) then return nil, "insufficient-parameters"; - elseif not hosts[host] then + elseif not hosts[host] and host ~= "*"then return nil, "unknown-host"; end if not modulemap[host] then modulemap[host] = {}; + if host ~= "*" then + hosts[host].modules = modulemap[host]; + end end if modulemap[host][module_name] then log("warn", "%s is already loaded for %s, so not loading again", module_name, host); return nil, "module-already-loaded"; elseif modulemap["*"][module_name] then + local mod = modulemap["*"][module_name]; + if module_has_method(mod, "add_host") then + local _log = logger.init(host..":"..module_name); + local host_module_api = setmetatable({ + host = host, event_handlers = {}, items = {}; + _log = _log, log = function (self, ...) return _log(...); end; + },{ + __index = modulemap["*"][module_name].module; + }); + local ok, result, module_err = call_module_method(mod, "add_host", host_module_api); + if not ok or result == false then return nil, ok and module_err or result; end + local host_module = setmetatable({ module = host_module_api }, { __index = mod }); + host_module.module.environment = host_module; + modulemap[host][module_name] = host_module; + return host_module; + end return nil, "global-module-already-loaded"; end @@ -117,88 +160,44 @@ function load(host, module_name, config) end local _log = logger.init(host..":"..module_name); - local api_instance = setmetatable({ name = module_name, host = host, path = err, _log = _log, log = function (self, ...) return _log(...); end }, { __index = api }); + local api_instance = setmetatable({ name = module_name, host = host, path = err, + _log = _log, log = function (self, ...) return _log(...); end, event_handlers = {} } + , { __index = api }); local pluginenv = setmetatable({ module = api_instance }, { __index = _G }); api_instance.environment = pluginenv; setfenv(mod, pluginenv); - hosts[host].modules = modulemap[host]; - modulemap[host][module_name] = pluginenv; - local success, err = pcall(mod); - if success then + local ok, err = pcall(mod); + if ok then + -- Call module's "load" if module_has_method(pluginenv, "load") then - success, err = call_module_method(pluginenv, "load"); - if not success then + ok, err = call_module_method(pluginenv, "load"); + if not ok then log("warn", "Error loading module '%s' on '%s': %s", module_name, host, err or "nil"); end end - -- Use modified host, if the module set one - if api_instance.host == "*" and host ~= "*" then - modulemap[host][module_name] = nil; - modulemap["*"][module_name] = pluginenv; - api_instance:set_global(); - end - else - log("error", "Error initializing module '%s' on '%s': %s", module_name, host, err or "nil"); - end - if success then - (hosts[api_instance.host] or prosody).events.fire_event("module-loaded", { module = module_name, host = host }); - return true; - else -- load failed, unloading - unload(api_instance.host, module_name); - return nil, err; - end -end - -function get_module(host, name) - return modulemap[host] and modulemap[host][name]; -end - -function is_loaded(host, name) - return modulemap[host] and modulemap[host][name] and true; -end - -function unload(host, name, ...) - local mod = get_module(host, name); - if not mod then return nil, "module-not-loaded"; end - - if module_has_method(mod, "unload") then - local ok, err = call_module_method(mod, "unload"); - if (not ok) and err then - log("warn", "Non-fatal error unloading module '%s' on '%s': %s", name, host, err); - end - end - -- unhook event handlers hooked by module:hook - for event, handlers in pairs(hooks:get(host, name) or NULL) do - for handler in pairs(handlers or NULL) do - (hosts[host] or prosody).events.remove_handler(event, handler); - end - end - -- unhook event handlers hooked by module:hook_global - for event, handlers in pairs(hooks:get("*", name) or NULL) do - for handler in pairs(handlers or NULL) do - prosody.events.remove_handler(event, handler); - end - end - hooks:remove(host, name); - if mod.module.items then -- remove items - for key,t in pairs(mod.module.items) do - for i = #t,1,-1 do - local value = t[i]; - t[i] = nil; - hosts[host].events.fire_event("item-removed/"..key, {source = mod.module, item = value}); + modulemap[api_instance.host][module_name] = pluginenv; + if api_instance.host == "*" then + if not api_instance.global then -- COMPAT w/pre-0.9 + log("warn", "mod_%s: Setting module.host = '*' deprecated, call module:set_global() instead", module_name); + api_instance:set_global(); + end + if host ~= api_instance.host and module_has_method(pluginenv, "add_host") then + -- Now load the module again onto the host it was originally being loaded on + ok, err = do_load_module(host, module_name); end end end - modulemap[host][name] = nil; - (hosts[host] or prosody).events.fire_event("module-unloaded", { module = name, host = host }); - return true; + if not ok then + log("error", "Error initializing module '%s' on '%s': %s", module_name, host, err or "nil"); + end + return ok and pluginenv, err; end -function reload(host, name, ...) +local function do_reload_module(host, name) local mod = get_module(host, name); if not mod then return nil, "module-not-loaded"; end @@ -209,7 +208,6 @@ function reload(host, name, ...) end local saved; - if module_has_method(mod, "save") then local ok, ret, err = call_module_method(mod, "save"); if ok then @@ -225,8 +223,8 @@ function reload(host, name, ...) end end - unload(host, name, ...); - local ok, err = load(host, name, ...); + do_unload_module(host, name); + local ok, err = do_load_module(host, name); if ok then mod = get_module(host, name); if module_has_method(mod, "restore") then @@ -235,231 +233,62 @@ function reload(host, name, ...) log("warn", "Error restoring module '%s' from '%s': %s", name, host, err); end end - return true; end - return ok, err; + return ok and mod, err; end -function module_has_method(module, method) - return type(module.module[method]) == "function"; -end +--- Public API --- -function call_module_method(module, method, ...) - if module_has_method(module, method) then - local f = module.module[method]; - return pcall(f, ...); - else - return false, "no-such-method"; - end -end - ------ API functions exposed to modules ----------- --- Must all be in api.* - --- Returns the name of the current module -function api:get_name() - return self.name; -end - --- Returns the host that the current module is serving -function api:get_host() - return self.host; -end - -function api:get_host_type() - return hosts[self.host].type; -end - -function api:set_global() - self.host = "*"; - -- Update the logger - local _log = logger.init("mod_"..self.name); - self.log = function (self, ...) return _log(...); end; - self._log = _log; -end - -function api:add_feature(xmlns) - self:add_item("feature", xmlns); -end -function api:add_identity(category, type, name) - self:add_item("identity", {category = category, type = type, name = name}); -end -function api:add_extension(data) - self:add_item("extension", data); -end - -function api:fire_event(...) - return (hosts[self.host] or prosody).events.fire_event(...); -end - -function api:hook(event, handler, priority) - hooks:set(self.host, self.name, event, handler, true); - (hosts[self.host] or prosody).events.add_handler(event, handler, priority); -end - -function api:hook_global(event, handler, priority) - hooks:set("*", self.name, event, handler, true); - prosody.events.add_handler(event, handler, priority); -end - -function api:hook_stanza(xmlns, name, handler, priority) - if not handler and type(name) == "function" then - -- If only 2 options then they specified no xmlns - xmlns, name, handler, priority = nil, xmlns, name, handler; - elseif not (handler and name) then - self:log("warn", "Error: Insufficient parameters to module:hook_stanza()"); - return; +-- Load a module and fire module-loaded event +function load(host, name) + local mod, err = do_load_module(host, name); + if mod then + (hosts[mod.module.host] or prosody).events.fire_event("module-loaded", { module = name, host = host }); end - return api.hook(self, "stanza/"..(xmlns and (xmlns..":") or "")..name, function (data) return handler(data.origin, data.stanza, data); end, priority); + return mod, err; end -function api:require(lib) - local f, n = pluginloader.load_code(self.name, lib..".lib.lua"); - if not f then - f, n = pluginloader.load_code(lib, lib..".lib.lua"); - end - if not f then error("Failed to load plugin library '"..lib.."', error: "..n); end -- FIXME better error message - setfenv(f, self.environment); - return f(); -end - -function api:get_option(name, default_value) - local value = config.get(self.host, self.name, name); - if value == nil then - value = config.get(self.host, "core", name); - if value == nil then - value = default_value; - end - end - return value; -end - -function api:get_option_string(name, default_value) - local value = self:get_option(name, default_value); - if type(value) == "table" then - if #value > 1 then - self:log("error", "Config option '%s' does not take a list, using just the first item", name); - end - value = value[1]; - end - if value == nil then - return nil; - end - return tostring(value); -end - -function api:get_option_number(name, ...) - local value = self:get_option(name, ...); - if type(value) == "table" then - if #value > 1 then - self:log("error", "Config option '%s' does not take a list, using just the first item", name); - end - value = value[1]; - end - local ret = tonumber(value); - if value ~= nil and ret == nil then - self:log("error", "Config option '%s' not understood, expecting a number", name); +-- Unload a module and fire module-unloaded +function unload(host, name) + local ok, err = do_unload_module(host, name); + if ok then + (hosts[host] or prosody).events.fire_event("module-unloaded", { module = name, host = host }); end - return ret; + return ok, err; end -function api:get_option_boolean(name, ...) - local value = self:get_option(name, ...); - if type(value) == "table" then - if #value > 1 then - self:log("error", "Config option '%s' does not take a list, using just the first item", name); - end - value = value[1]; - end - if value == nil then - return nil; - end - local ret = value == true or value == "true" or value == 1 or nil; - if ret == nil then - ret = (value == false or value == "false" or value == 0); - if ret then - ret = false; - else - ret = nil; - end - end - if ret == nil then - self:log("error", "Config option '%s' not understood, expecting true/false", name); +function reload(host, name) + local ok, err = do_reload_module(host, name); + if ok then + (hosts[host] or prosody).events.fire_event("module-reloaded", { module = name, host = host }); + elseif not is_loaded(host, name) then + (hosts[host] or prosody).events.fire_event("module-unloaded", { module = name, host = host }); end - return ret; + return ok, err; end -function api:get_option_array(name, ...) - local value = self:get_option(name, ...); - - if value == nil then - return nil; - end - - if type(value) ~= "table" then - return array{ value }; -- Assume any non-list is a single-item list - end - - return array():append(value); -- Clone +function get_module(host, name) + return modulemap[host] and modulemap[host][name]; end -function api:get_option_set(name, ...) - local value = self:get_option_array(name, ...); - - if value == nil then - return nil; - end - - return set.new(value); +function get_modules(host) + return modulemap[host]; end -local t_remove = _G.table.remove; -local module_items = multitable_new(); -function api:add_item(key, value) - self.items = self.items or {}; - self.items[key] = self.items[key] or {}; - t_insert(self.items[key], value); - self:fire_event("item-added/"..key, {source = self, item = value}); -end -function api:remove_item(key, value) - local t = self.items and self.items[key] or NULL; - for i = #t,1,-1 do - if t[i] == value then - t_remove(self.items[key], i); - self:fire_event("item-removed/"..key, {source = self, item = value}); - return value; - end - end +function is_loaded(host, name) + return modulemap[host] and modulemap[host][name] and true; end -function api:get_host_items(key) - local result = {}; - for mod_name, module in pairs(modulemap[self.host]) do - module = module.module; - if module.items then - for _, item in ipairs(module.items[key] or NULL) do - t_insert(result, item); - end - end - end - for mod_name, module in pairs(modulemap["*"]) do - module = module.module; - if module.items then - for _, item in ipairs(module.items[key] or NULL) do - t_insert(result, item); - end - end - end - return result; +function module_has_method(module, method) + return type(rawget(module.module, method)) == "function"; end -function api:handle_items(type, added_cb, removed_cb, existing) - self:hook("item-added/"..type, added_cb); - self:hook("item-removed/"..type, removed_cb); - if existing ~= false then - for _, item in ipairs(self:get_host_items(type)) do - added_cb({ item = item }); - end +function call_module_method(module, method, ...) + local f = rawget(module.module, method); + if type(f) == "function" then + return pcall(f, ...); + else + return false, "no-such-method"; end end diff --git a/core/portmanager.lua b/core/portmanager.lua new file mode 100644 index 00000000..da238dba --- /dev/null +++ b/core/portmanager.lua @@ -0,0 +1,194 @@ + +local multitable = require "util.multitable"; +local fire_event = prosody.events.fire_event; + +--- Config + +local default_interfaces = { "*" }; +local default_local_interfaces = { "127.0.0.1" }; +if config.get("*", "use_ipv6") then + table.insert(default_interfaces, "::"); + table.insert(default_local_interfaces, "::1"); +end + +--- Private state + +-- service_name -> { service_info, ... } +local services = setmetatable({}, { __index = function (t, k) rawset(t, k, {}); return rawget(t, k); end }); + +-- service_name, interface (string), port (number) +local active_services = multitable.new(); + +--- Private helpers + +local function error_to_friendly_message(service_name, port, err) + local friendly_message = err; + if err:match(" in use") then + -- FIXME: Use service_name here + if port == 5222 or port == 5223 or port == 5269 then + friendly_message = "check that Prosody or another XMPP server is " + .."not already running and using this port"; + elseif port == 80 or port == 81 then + friendly_message = "check that a HTTP server is not already using " + .."this port"; + elseif port == 5280 then + friendly_message = "check that Prosody or a BOSH connection manager " + .."is not already running"; + else + friendly_message = "this port is in use by another application"; + end + elseif err:match("permission") then + friendly_message = "Prosody does not have sufficient privileges to use this port"; + elseif err == "no ssl context" then + if not config.get("*", "core", "ssl") then + friendly_message = "there is no 'ssl' config under Host \"*\" which is " + .."require for legacy SSL ports"; + else + friendly_message = "initializing SSL support failed, see previous log entries"; + end + end + return friendly_message; +end + +module("portmanager", package.seeall); + +prosody.events.add_handler("item-added/net-provider", function (event) + local item = event.item; + register_service(item.name, item); +end); +prosody.events.add_handler("item-removed/net-provider", function (event) + local item = event.item; + unregister_service(item.name, item); +end); + +--- Public API + +function activate_service(service_name) + local service_info = services[service_name][1]; + if not service_info then + return nil, "Unknown service: "..service_name; + end + + local listener = service_info.listener; + + local config_prefix = (service_info.config_prefix or service_name).."_"; + if config_prefix == "_" then + config_prefix = ""; + end + + local bind_interfaces = set.new(config.get("*", config_prefix.."interfaces") + or config.get("*", config_prefix.."interface") -- COMPAT w/pre-0.9 + or (service_info.private and default_local_interfaces) + or config.get("*", "interfaces") + or config.get("*", "interface") -- COMPAT w/pre-0.9 + or listener.default_interface -- COMPAT w/pre0.9 + or default_interfaces); + + local bind_ports = set.new(config.get("*", config_prefix.."ports") + or service_info.default_ports + or {service_info.default_port + or listener.default_port -- COMPAT w/pre-0.9 + }); + + local mode = listener.default_mode or "*a"; + local ssl; + if service_info.encryption == "ssl" then + ssl = prosody.global_ssl_ctx; + if not ssl then + return nil, "global-ssl-context-required"; + end + end + + for interface in bind_interfaces do + for port in bind_ports do + if #active_services:search(nil, interface, port) > 0 then + log("error", "Multiple services configured to listen on the same port ([%s]:%d): %s, %s", interface, port, active_services:search(nil, interface, port)[1][1].service.name or "<unnamed>", service_name or "<unnamed>"); + else + local handler, err = server.addserver(interface, port, listener, mode, ssl); + if not handler then + log("error", "Failed to open server port %d on %s, %s", port, interface, error_to_friendly_message(service_name, port, err)); + else + log("debug", "Added listening service %s to [%s]:%d", service_name, interface, port); + active_services:add(service_name, interface, port, { + server = handler; + service = service_info; + }); + end + end + end + end + log("info", "Activated service '%s'", service_name); + return true; +end + +function deactivate(service_name) + local active = active_services:search(service_name)[1]; + if not active then return; end + for interface, ports in pairs(active) do + for port, active_service in pairs(ports) do + close(interface, port); + end + end + log("info", "Deactivated service '%s'", service_name); +end + +function register_service(service_name, service_info) + table.insert(services[service_name], service_info); + + if not active_services:get(service_name) then + log("debug", "No active service for %s, activating...", service_name); + local ok, err = activate_service(service_name); + if not ok then + log("error", "Failed to activate service '%s': %s", service_name, err or "unknown error"); + end + end + + fire_event("service-added", { name = service_name, service = service_info }); + return true; +end + +function unregister_service(service_name, service_info) + local service_info_list = services[service_name]; + for i, service in ipairs(service_info_list) do + if service == service_info then + table.remove(service_info_list, i); + end + end + if active_services[service_name] == service_info then + deactivate(service_name); + if #service_info_list > 0 then -- Other services registered with this name + activate(service_name); -- Re-activate with the next available one + end + end + fire_event("service-removed", { name = service_name, service = service_info }); +end + +function close(interface, port) + local service, server = get_service_at(interface, port); + if not service then + return false, "port-not-open"; + end + server:close(); + active_services:remove(service.name, interface, port); + log("debug", "Removed listening service %s from [%s]:%d", service.name, interface, port); + return true; +end + +function get_service_at(interface, port) + local data = active_services:search(nil, interface, port)[1][1]; + return data.service, data.server; +end + +function get_service(service_name) + return services[service_name]; +end + +function get_active_services(...) + return active_services; +end + +function get_registered_services() + return services; +end + +return _M; diff --git a/core/s2smanager.lua b/core/s2smanager.lua index acb0baeb..5907ff2f 100644 --- a/core/s2smanager.lua +++ b/core/s2smanager.lua @@ -9,18 +9,13 @@ local hosts = hosts; -local sessions = sessions; local core_process_stanza = function(a, b) core_process_stanza(a, b); end -local add_task = require "util.timer".add_task; -local socket = require "socket"; local format = string.format; local t_insert, t_sort = table.insert, table.sort; local get_traceback = debug.traceback; local tostring, pairs, ipairs, getmetatable, newproxy, type, error, tonumber, setmetatable = tostring, pairs, ipairs, getmetatable, newproxy, type, error, tonumber, setmetatable; -local idna_to_ascii = require "util.encodings".idna.to_ascii; -local connlisteners_get = require "net.connlisteners".get; local initialize_filters = require "util.filters".initialize; local wrapclient = require "net.server".wrapclient; local st = require "stanza"; @@ -41,11 +36,12 @@ local sha256_hash = require "util.hashes".sha256; local adns, dns = require "net.adns", require "net.dns"; local config = require "core.configmanager"; -local connect_timeout = config.get("*", "core", "s2s_timeout") or 60; local dns_timeout = config.get("*", "core", "dns_timeout") or 15; -local max_dns_depth = config.get("*", "core", "dns_max_depth") or 3; +local cfg_sources = config.get("*", "core", "s2s_interface") + or config.get("*", "core", "interface"); local sources; +--FIXME: s2sout should create its own resolver w/ timeout dns.settimeout(dns_timeout); local prosody = _G.prosody; @@ -55,89 +51,6 @@ local incoming_s2s = incoming_s2s; module "s2smanager" -function compare_srv_priorities(a,b) - return a.priority < b.priority or (a.priority == b.priority and a.weight > b.weight); -end - -local bouncy_stanzas = { message = true, presence = true, iq = true }; -local function bounce_sendq(session, reason) - local sendq = session.sendq; - if sendq then - session.log("info", "sending error replies for "..#sendq.." queued stanzas because of failed outgoing connection to "..tostring(session.to_host)); - local dummy = { - type = "s2sin"; - send = function(s) - (session.log or log)("error", "Replying to to an s2s error reply, please report this! Traceback: %s", get_traceback()); - end; - dummy = true; - }; - for i, data in ipairs(sendq) do - local reply = data[2]; - if reply and not(reply.attr.xmlns) and bouncy_stanzas[reply.name] then - reply.attr.type = "error"; - reply:tag("error", {type = "cancel"}) - :tag("remote-server-not-found", {xmlns = "urn:ietf:params:xml:ns:xmpp-stanzas"}):up(); - if reason then - reply:tag("text", {xmlns = "urn:ietf:params:xml:ns:xmpp-stanzas"}) - :text("Server-to-server connection failed: "..reason):up(); - end - core_process_stanza(dummy, reply); - end - sendq[i] = nil; - end - session.sendq = nil; - end -end - -function send_to_host(from_host, to_host, data) - if not hosts[from_host] then - log("warn", "Attempt to send stanza from %s - a host we don't serve", from_host); - return false; - end - local host = hosts[from_host].s2sout[to_host]; - if host then - -- We have a connection to this host already - if host.type == "s2sout_unauthed" and (data.name ~= "db:verify" or not host.dialback_key) then - (host.log or log)("debug", "trying to send over unauthed s2sout to "..to_host); - - -- Queue stanza until we are able to send it - if host.sendq then t_insert(host.sendq, {tostring(data), data.attr.type ~= "error" and data.attr.type ~= "result" and st.reply(data)}); - else host.sendq = { {tostring(data), data.attr.type ~= "error" and data.attr.type ~= "result" and st.reply(data)} }; end - host.log("debug", "stanza [%s] queued ", data.name); - elseif host.type == "local" or host.type == "component" then - log("error", "Trying to send a stanza to ourselves??") - log("error", "Traceback: %s", get_traceback()); - log("error", "Stanza: %s", tostring(data)); - return false; - else - (host.log or log)("debug", "going to send stanza to "..to_host.." from "..from_host); - -- FIXME - if host.from_host ~= from_host then - log("error", "WARNING! This might, possibly, be a bug, but it might not..."); - log("error", "We are going to send from %s instead of %s", tostring(host.from_host), tostring(from_host)); - end - host.sends2s(data); - host.log("debug", "stanza sent over "..host.type); - end - else - log("debug", "opening a new outgoing connection for this stanza"); - local host_session = new_outgoing(from_host, to_host); - - -- Store in buffer - host_session.sendq = { {tostring(data), data.attr.type ~= "error" and data.attr.type ~= "result" and st.reply(data)} }; - log("debug", "stanza [%s] queued until connection complete", tostring(data.name)); - if (not host_session.connecting) and (not host_session.conn) then - log("warn", "Connection to %s failed already, destroying session...", to_host); - if not destroy_session(host_session, "Connection failed") then - -- Already destroyed, we need to bounce our stanza - bounce_sendq(host_session, host_session.destruction_reason); - end - return false; - end - end - return true; -end - local open_sessions = 0; function new_incoming(conn) @@ -147,496 +60,18 @@ function new_incoming(conn) getmetatable(session.trace).__gc = function () open_sessions = open_sessions - 1; end; end open_sessions = open_sessions + 1; - local w, log = conn.write, logger_init("s2sin"..tostring(conn):match("[a-f0-9]+$")); - session.log = log; - local filter = initialize_filters(session); - session.sends2s = function (t) - log("debug", "sending: %s", t.top_tag and t:top_tag() or t:match("^([^>]*>?)")); - if t.name then - t = filter("stanzas/out", t); - end - if t then - t = filter("bytes/out", tostring(t)); - if t then - return w(conn, t); - end - end - end + session.log = logger_init("s2sin"..tostring(conn):match("[a-f0-9]+$")); incoming_s2s[session] = true; - add_task(connect_timeout, function () - if session.conn ~= conn or - session.type == "s2sin" then - return; -- Ok, we're connect[ed|ing] - end - -- Not connected, need to close session and clean up - (session.log or log)("debug", "Destroying incomplete session %s->%s due to inactivity", - session.from_host or "(unknown)", session.to_host or "(unknown)"); - session:close("connection-timeout"); - end); return session; end function new_outgoing(from_host, to_host, connect) - local host_session = { to_host = to_host, from_host = from_host, host = from_host, - notopen = true, type = "s2sout_unauthed", direction = "outgoing", - open_stream = session_open_stream }; - - hosts[from_host].s2sout[to_host] = host_session; - - host_session.close = destroy_session; -- This gets replaced by xmppserver_listener later - - local log; - do - local conn_name = "s2sout"..tostring(host_session):match("[a-f0-9]*$"); - log = logger_init(conn_name); - host_session.log = log; - end - - initialize_filters(host_session); - - if connect ~= false then - -- Kick the connection attempting machine into life - if not attempt_connection(host_session) then - -- Intentionally not returning here, the - -- session is needed, connected or not - destroy_session(host_session); - end - end - - if not host_session.sends2s then - -- A sends2s which buffers data (until the stream is opened) - -- note that data in this buffer will be sent before the stream is authed - -- and will not be ack'd in any way, successful or otherwise - local buffer; - function host_session.sends2s(data) - if not buffer then - buffer = {}; - host_session.send_buffer = buffer; - end - log("debug", "Buffering data on unconnected s2sout to %s", to_host); - buffer[#buffer+1] = data; - log("debug", "Buffered item %d: %s", #buffer, tostring(data)); - end - end - - return host_session; -end - - -function attempt_connection(host_session, err) - local from_host, to_host = host_session.from_host, host_session.to_host; - local connect_host, connect_port = to_host and idna_to_ascii(to_host), 5269; - - if not connect_host then - return false; - end - - if not err then -- This is our first attempt - log("debug", "First attempt to connect to %s, starting with SRV lookup...", to_host); - host_session.connecting = true; - local handle; - handle = adns.lookup(function (answer) - handle = nil; - host_session.connecting = nil; - if answer then - log("debug", to_host.." has SRV records, handling..."); - local srv_hosts = {}; - host_session.srv_hosts = srv_hosts; - for _, record in ipairs(answer) do - t_insert(srv_hosts, record.srv); - end - if #srv_hosts == 1 and srv_hosts[1].target == "." then - log("debug", to_host.." does not provide a XMPP service"); - destroy_session(host_session, err); -- Nothing to see here - return; - end - t_sort(srv_hosts, compare_srv_priorities); - - local srv_choice = srv_hosts[1]; - host_session.srv_choice = 1; - if srv_choice then - connect_host, connect_port = srv_choice.target or to_host, srv_choice.port or connect_port; - log("debug", "Best record found, will connect to %s:%d", connect_host, connect_port); - end - else - log("debug", to_host.." has no SRV records, falling back to A"); - end - -- Try with SRV, or just the plain hostname if no SRV - local ok, err = try_connect(host_session, connect_host, connect_port); - if not ok then - if not attempt_connection(host_session, err) then - -- No more attempts will be made - destroy_session(host_session, err); - end - end - end, "_xmpp-server._tcp."..connect_host..".", "SRV"); - - return true; -- Attempt in progress - elseif host_session.ip_hosts then - return try_connect(host_session, connect_host, connect_port, err); - elseif host_session.srv_hosts and #host_session.srv_hosts > host_session.srv_choice then -- Not our first attempt, and we also have SRV - host_session.srv_choice = host_session.srv_choice + 1; - local srv_choice = host_session.srv_hosts[host_session.srv_choice]; - connect_host, connect_port = srv_choice.target or to_host, srv_choice.port or connect_port; - host_session.log("info", "Connection failed (%s). Attempt #%d: This time to %s:%d", tostring(err), host_session.srv_choice, connect_host, connect_port); - else - host_session.log("info", "Out of connection options, can't connect to %s", tostring(host_session.to_host)); - -- We're out of options - return false; - end - - if not (connect_host and connect_port) then - -- Likely we couldn't resolve DNS - log("warn", "Hmm, we're without a host (%s) and port (%s) to connect to for %s, giving up :(", tostring(connect_host), tostring(connect_port), tostring(to_host)); - return false; - end - - return try_connect(host_session, connect_host, connect_port); -end - -function try_next_ip(host_session) - host_session.connecting = nil; - host_session.ip_choice = host_session.ip_choice + 1; - local ip = host_session.ip_hosts[host_session.ip_choice]; - local ok, err= make_connect(host_session, ip.ip, ip.port); - if not ok then - if not attempt_connection(host_session, err or "closed") then - err = err and (": "..err) or ""; - destroy_session(host_session, "Connection failed"..err); - end - end -end - -function try_connect(host_session, connect_host, connect_port, err) - host_session.connecting = true; - - if not err then - local IPs = {}; - host_session.ip_hosts = IPs; - local handle4, handle6; - local has_other = false; - - if not sources then - sources = {}; - local cfg_sources = config.get("*", "core", "interface") or connlisteners_get("xmppserver").default_interface; - if type(cfg_sources) == "string" then - cfg_sources = { cfg_sources }; - end - for i, source in ipairs(cfg_sources) do - if source == "*" then - sources[i] = new_ip("0.0.0.0", "IPv4"); - else - sources[i] = new_ip(source, (source:find(":") and "IPv6") or "IPv4"); - end - end - end - - handle4 = adns.lookup(function (reply, err) - handle4 = nil; - - -- COMPAT: This is a compromise for all you CNAME-(ab)users :) - if not (reply and reply[#reply] and reply[#reply].a) then - local count = max_dns_depth; - reply = dns.peek(connect_host, "CNAME", "IN"); - while count > 0 and reply and reply[#reply] and not reply[#reply].a and reply[#reply].cname do - log("debug", "Looking up %s (DNS depth is %d)", tostring(reply[#reply].cname), count); - reply = dns.peek(reply[#reply].cname, "A", "IN") or dns.peek(reply[#reply].cname, "CNAME", "IN"); - count = count - 1; - end - end - -- end of CNAME resolving - - if reply and reply[#reply] and reply[#reply].a then - for _, ip in ipairs(reply) do - log("debug", "DNS reply for %s gives us %s", connect_host, ip.a); - IPs[#IPs+1] = new_ip(ip.a, "IPv4"); - end - end - - if has_other then - if #IPs > 0 then - rfc3484_dest(host_session.ip_hosts, sources); - for i = 1, #IPs do - IPs[i] = {ip = IPs[i], port = connect_port}; - end - host_session.ip_choice = 0; - try_next_ip(host_session); - else - log("debug", "DNS lookup failed to get a response for %s", connect_host); - host_session.ip_hosts = nil; - if not attempt_connection(host_session, "name resolution failed") then -- Retry if we can - log("debug", "No other records to try for %s - destroying", host_session.to_host); - err = err and (": "..err) or ""; - destroy_session(host_session, "DNS resolution failed"..err); -- End of the line, we can't - end - end - else - has_other = true; - end - end, connect_host, "A", "IN"); - - handle6 = adns.lookup(function (reply, err) - handle6 = nil; - - if reply and reply[#reply] and reply[#reply].aaaa then - for _, ip in ipairs(reply) do - log("debug", "DNS reply for %s gives us %s", connect_host, ip.aaaa); - IPs[#IPs+1] = new_ip(ip.aaaa, "IPv6"); - end - end - - if has_other then - if #IPs > 0 then - rfc3484_dest(host_session.ip_hosts, sources); - for i = 1, #IPs do - IPs[i] = {ip = IPs[i], port = connect_port}; - end - host_session.ip_choice = 0; - try_next_ip(host_session); - else - log("debug", "DNS lookup failed to get a response for %s", connect_host); - host_session.ip_hosts = nil; - if not attempt_connection(host_session, "name resolution failed") then -- Retry if we can - log("debug", "No other records to try for %s - destroying", host_session.to_host); - err = err and (": "..err) or ""; - destroy_session(host_session, "DNS resolution failed"..err); -- End of the line, we can't - end - end - else - has_other = true; - end - end, connect_host, "AAAA", "IN"); - - return true; - elseif host_session.ip_hosts and #host_session.ip_hosts > host_session.ip_choice then -- Not our first attempt, and we also have IPs left to try - try_next_ip(host_session); - else - host_session.ip_hosts = nil; - if not attempt_connection(host_session, "out of IP addresses") then -- Retry if we can - log("debug", "No other records to try for %s - destroying", host_session.to_host); - err = err and (": "..err) or ""; - destroy_session(host_session, "Connecting failed"..err); -- End of the line, we can't - return false; - end - end - - return true; -end - -function make_connect(host_session, connect_host, connect_port) - (host_session.log or log)("info", "Beginning new connection attempt to %s ([%s]:%d)", host_session.to_host, connect_host.addr, connect_port); - -- Ok, we're going to try to connect - - local from_host, to_host = host_session.from_host, host_session.to_host; - - local conn, handler; - if connect_host.proto == "IPv4" then - conn, handler = socket.tcp(); - elseif socket.tcp6 then - conn, handler = socket.tcp6(); - end - - if not conn then - log("warn", "Failed to create outgoing connection, system error: %s", handler); - return false, handler; - end - - conn:settimeout(0); - local success, err = conn:connect(connect_host.addr, connect_port); - if not success and err ~= "timeout" then - log("warn", "s2s connect() to %s (%s:%d) failed: %s", host_session.to_host, connect_host.addr, connect_port, err); - return false, err; - end - - local cl = connlisteners_get("xmppserver"); - conn = wrapclient(conn, connect_host.addr, connect_port, cl, cl.default_mode or 1 ); - host_session.conn = conn; - - local filter = initialize_filters(host_session); - local w, log = conn.write, host_session.log; - host_session.sends2s = function (t) - log("debug", "sending: %s", (t.top_tag and t:top_tag()) or t:match("^[^>]*>?")); - if t.name then - t = filter("stanzas/out", t); - end - if t then - t = filter("bytes/out", tostring(t)); - if t then - return w(conn, tostring(t)); - end - end - end - - -- Register this outgoing connection so that xmppserver_listener knows about it - -- otherwise it will assume it is a new incoming connection - cl.register_outgoing(conn, host_session); - - host_session:open_stream(from_host, to_host); - - log("debug", "Connection attempt in progress..."); - add_task(connect_timeout, function () - if host_session.conn ~= conn or - host_session.type == "s2sout" or - host_session.connecting then - return; -- Ok, we're connect[ed|ing] - end - -- Not connected, need to close session and clean up - (host_session.log or log)("warn", "Destroying incomplete session %s->%s due to inactivity", - host_session.from_host or "(unknown)", host_session.to_host or "(unknown)"); - host_session:close("connection-timeout"); - end); - return true; -end - -function session_open_stream(session, from, to) - session.sends2s(st.stanza("stream:stream", { - xmlns='jabber:server', ["xmlns:db"]='jabber:server:dialback', - ["xmlns:stream"]='http://etherx.jabber.org/streams', - from=from, to=to, version='1.0', ["xml:lang"]='en'}):top_tag()); -end - -local function check_cert_status(session) - local conn = session.conn:socket() - local cert - if conn.getpeercertificate then - cert = conn:getpeercertificate() - end - - if cert then - local chain_valid, errors = conn:getpeerverification() - -- Is there any interest in printing out all/the number of errors here? - if not chain_valid then - (session.log or log)("debug", "certificate chain validation result: invalid"); - session.cert_chain_status = "invalid"; - else - (session.log or log)("debug", "certificate chain validation result: valid"); - session.cert_chain_status = "valid"; - - local host; - if session.direction == "incoming" then - host = session.from_host; - else - host = session.to_host; - end - - -- We'll go ahead and verify the asserted identity if the - -- connecting server specified one. - if host then - if cert_verify_identity(host, "xmpp-server", cert) then - session.cert_identity_status = "valid" - else - session.cert_identity_status = "invalid" - end - end - end - end -end - -function streamopened(session, attr) - local send = session.sends2s; - - -- TODO: #29: SASL/TLS on s2s streams - session.version = tonumber(attr.version) or 0; - - -- TODO: Rename session.secure to session.encrypted - if session.secure == false then - session.secure = true; - end - - if session.direction == "incoming" then - -- Send a reply stream header - session.to_host = attr.to and nameprep(attr.to); - session.from_host = attr.from and nameprep(attr.from); - - session.streamid = uuid_gen(); - (session.log or log)("debug", "Incoming s2s received %s", st.stanza("stream:stream", attr):top_tag()); - if session.to_host then - if not hosts[session.to_host] then - -- Attempting to connect to a host we don't serve - session:close({ - condition = "host-unknown"; - text = "This host does not serve "..session.to_host - }); - return; - elseif hosts[session.to_host].disallow_s2s then - -- Attempting to connect to a host that disallows s2s - session:close({ - condition = "policy-violation"; - text = "Server-to-server communication is not allowed to this host"; - }); - return; - end - end - - if session.secure and not session.cert_chain_status then check_cert_status(session); end - - send("<?xml version='1.0'?>"); - send(stanza("stream:stream", { xmlns='jabber:server', ["xmlns:db"]='jabber:server:dialback', - ["xmlns:stream"]='http://etherx.jabber.org/streams', id=session.streamid, from=session.to_host, to=session.from_host, version=(session.version > 0 and "1.0" or nil) }):top_tag()); - if session.version >= 1.0 then - local features = st.stanza("stream:features"); - - if session.to_host then - hosts[session.to_host].events.fire_event("s2s-stream-features", { origin = session, features = features }); - else - (session.log or log)("warn", "No 'to' on stream header from %s means we can't offer any features", session.from_host or "unknown host"); - end - - log("debug", "Sending stream features: %s", tostring(features)); - send(features); - end - elseif session.direction == "outgoing" then - -- If we are just using the connection for verifying dialback keys, we won't try and auth it - if not attr.id then error("stream response did not give us a streamid!!!"); end - session.streamid = attr.id; - - if session.secure and not session.cert_chain_status then check_cert_status(session); end - - -- Send unauthed buffer - -- (stanzas which are fine to send before dialback) - -- Note that this is *not* the stanza queue (which - -- we can only send if auth succeeds) :) - local send_buffer = session.send_buffer; - if send_buffer and #send_buffer > 0 then - log("debug", "Sending s2s send_buffer now..."); - for i, data in ipairs(send_buffer) do - session.sends2s(tostring(data)); - send_buffer[i] = nil; - end - end - session.send_buffer = nil; - - -- If server is pre-1.0, don't wait for features, just do dialback - if session.version < 1.0 then - if not session.dialback_verifying then - log("debug", "Initiating dialback..."); - initiate_dialback(session); - else - mark_connected(session); - end - end - end - session.notopen = nil; -end - -function streamclosed(session) - (session.log or log)("debug", "Received </stream:stream>"); - session:close(); -end - -function initiate_dialback(session) - -- generate dialback key - session.dialback_key = generate_dialback(session.streamid, session.to_host, session.from_host); - session.sends2s(format("<db:result from='%s' to='%s'>%s</db:result>", session.from_host, session.to_host, session.dialback_key)); - session.log("info", "sent dialback key on outgoing s2s stream"); -end - -function generate_dialback(id, to, from) - return sha256_hash(id..to..from..hosts[from].dialback_secret, true); -end - -function verify_dialback(id, to, from, key) - return key == generate_dialback(id, to, from); + local host_session = { to_host = to_host, from_host = from_host, host = from_host, + notopen = true, type = "s2sout_unauthed", direction = "outgoing" }; + hosts[from_host].s2sout[to_host] = host_session; + local conn_name = "s2sout"..tostring(host_session):match("[a-f0-9]*$"); + host_session.log = logger_init(conn_name); + return host_session; end function make_authenticated(session, host) @@ -678,10 +113,7 @@ function mark_connected(session) local from, to = session.from_host, session.to_host; session.log("info", session.direction.." s2s connection "..from.."->"..to.." complete"); - - local send_to_host = send_to_host; - function session.send(data) return send_to_host(to, from, data); end - + local event_data = { session = session }; if session.type == "s2sout" then prosody.events.fire_event("s2sout-established", event_data); @@ -701,6 +133,7 @@ function mark_connected(session) session.sendq = nil; end + session.ip_hosts = nil; session.srv_hosts = nil; end end @@ -738,7 +171,7 @@ function destroy_session(session, reason) if session.direction == "outgoing" then hosts[session.from_host].s2sout[session.to_host] = nil; - bounce_sendq(session, reason); + session:bounce_sendq(reason); elseif session.direction == "incoming" then incoming_s2s[session] = nil; end diff --git a/core/sessionmanager.lua b/core/sessionmanager.lua index b1ec819f..c101bf4e 100644 --- a/core/sessionmanager.lua +++ b/core/sessionmanager.lua @@ -6,11 +6,8 @@ -- COPYING file in the source package for more information. -- - - local tonumber, tostring, setmetatable = tonumber, tostring, setmetatable; local ipairs, pairs, print, next= ipairs, pairs, print, next; -local format = string.format; local hosts = hosts; local full_sessions = full_sessions; @@ -19,12 +16,11 @@ local bare_sessions = bare_sessions; local logger = require "util.logger"; local log = logger.init("sessionmanager"); local error = error; -local uuid_generate = require "util.uuid".generate; local rm_load_roster = require "core.rostermanager".load_roster; local config_get = require "core.configmanager".get; -local nameprep = require "util.encodings".stringprep.nameprep; local resourceprep = require "util.encodings".stringprep.resourceprep; local nodeprep = require "util.encodings".stringprep.nodeprep; +local uuid_generate = require "util.uuid".generate; local initialize_filters = require "util.filters".initialize; local fire_event = prosody.events.fire_event; @@ -33,8 +29,6 @@ local gettime = require "socket".gettime; local st = require "util.stanza"; -local c2s_timeout = config_get("*", "core", "c2s_timeout"); - local newproxy = newproxy; local getmetatable = getmetatable; @@ -67,14 +61,6 @@ function new_session(conn) session.ip = conn:ip(); local conn_name = "c2s"..tostring(conn):match("[a-f0-9]+$"); session.log = logger.init(conn_name); - - if c2s_timeout then - add_task(c2s_timeout, function () - if session.type == "c2s_unauthed" then - session:close("connection-timeout"); - end - end); - end return session; end @@ -216,50 +202,6 @@ function bind_resource(session, resource) return true; end -function streamopened(session, attr) - local send = session.send; - session.host = attr.to; - if not session.host then - session:close{ condition = "improper-addressing", - text = "A 'to' attribute is required on stream headers" }; - return; - end - session.host = nameprep(session.host); - session.version = tonumber(attr.version) or 0; - session.streamid = uuid_generate(); - (session.log or session)("debug", "Client sent opening <stream:stream> to %s", session.host); - - if not hosts[session.host] then - -- We don't serve this host... - session:close{ condition = "host-unknown", text = "This server does not serve "..tostring(session.host)}; - return; - end - - send("<?xml version='1.0'?>"); - send(format("<stream:stream xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' id='%s' from='%s' version='1.0' xml:lang='en'>", session.streamid, session.host)); - - (session.log or log)("debug", "Sent reply <stream:stream> to client"); - session.notopen = nil; - - -- If session.secure is *false* (not nil) then it means we /were/ encrypting - -- since we now have a new stream header, session is secured - if session.secure == false then - session.secure = true; - end - - local features = st.stanza("stream:features"); - hosts[session.host].events.fire_event("stream-features", { origin = session, features = features }); - fire_event("stream-features", session, features); - - send(features); - -end - -function streamclosed(session) - session.log("debug", "Received </stream:stream>"); - session:close(); -end - function send_to_available_resources(user, host, stanza) local jid = user.."@"..host; local count = 0; diff --git a/core/stanza_router.lua b/core/stanza_router.lua index 406ad2f0..54c5a1a6 100644 --- a/core/stanza_router.lua +++ b/core/stanza_router.lua @@ -11,7 +11,6 @@ local log = require "util.logger".init("stanzarouter") local hosts = _G.prosody.hosts; local tostring = tostring; local st = require "util.stanza"; -local send_s2s = require "core.s2smanager".send_to_host; local jid_split = require "util.jid".split; local jid_prepped_split = require "util.jid".prepped_split; @@ -105,11 +104,6 @@ function core_process_stanza(origin, stanza) stanza.attr.from = from; end - --[[if to and not(hosts[to]) and not(hosts[to_bare]) and (hosts[host] and hosts[host].type ~= "local") then -- not for us? - log("warn", "stanza recieved for a non-local server"); - return; -- FIXME what should we do here? - end]] -- FIXME - if (origin.type == "s2sin" or origin.type == "c2s" or origin.type == "component") and xmlns == nil then if origin.type == "s2sin" and not origin.dummy then local host_status = origin.hosts[from_host]; @@ -189,26 +183,18 @@ function core_route_stanza(origin, stanza) if hosts[host] then -- old stanza routing code removed core_post_stanza(origin, stanza); - elseif origin.type == "c2s" then - -- Remote host + else + log("debug", "Routing to remote..."); if not hosts[from_host] then log("error", "No hosts[from_host] (please report): %s", tostring(stanza)); - end - if (not hosts[from_host]) or (not hosts[from_host].disallow_s2s) then + else local xmlns = stanza.attr.xmlns; - --stanza.attr.xmlns = "jabber:server"; stanza.attr.xmlns = nil; - log("debug", "sending s2s stanza: %s", tostring(stanza.top_tag and stanza:top_tag()) or stanza); - send_s2s(origin.host, host, stanza); -- TODO handle remote routing errors + local routed = prosody.events.fire_event("route/remote", { origin = origin, stanza = stanza, from_host = from_host, to_host = host }); --FIXME: Should be per-host (shared modules!) stanza.attr.xmlns = xmlns; -- reset - else - core_route_stanza(hosts[from_host], st.error_reply(stanza, "cancel", "not-allowed", "Communication with remote servers is not allowed")); + if routed == nil then + core_route_stanza(hosts[from_host], st.error_reply(stanza, "cancel", "not-allowed", "Communication with remote domains is not enabled")); + end end - elseif origin.type == "component" or origin.type == "local" then - -- Route via s2s for components and modules - log("debug", "Routing outgoing stanza for %s to %s", from_host, host); - send_s2s(from_host, host, stanza); - else - log("warn", "received %s stanza from unhandled connection type: %s", tostring(stanza.name), tostring(origin.type)); end end diff --git a/net/connlisteners.lua b/net/connlisteners.lua deleted file mode 100644 index 6a227c9d..00000000 --- a/net/connlisteners.lua +++ /dev/null @@ -1,81 +0,0 @@ --- Prosody IM --- Copyright (C) 2008-2010 Matthew Wild --- Copyright (C) 2008-2010 Waqas Hussain --- --- This project is MIT/X11 licensed. Please see the --- COPYING file in the source package for more information. --- - - - -local listeners_dir = (CFG_SOURCEDIR or ".").."/net/"; -local server = require "net.server"; -local log = require "util.logger".init("connlisteners"); -local tostring = tostring; -local type = type -local ipairs = ipairs - -local dofile, xpcall, error = - dofile, xpcall, error - -local debug_traceback = debug.traceback; - -module "connlisteners" - -local listeners = {}; - -function register(name, listener) - if listeners[name] and listeners[name] ~= listener then - log("debug", "Listener %s is already registered, not registering any more", name); - return false; - end - listeners[name] = listener; - log("debug", "Registered connection listener %s", name); - return true; -end - -function deregister(name) - listeners[name] = nil; -end - -function get(name) - local h = listeners[name]; - if not h then - local ok, ret = xpcall(function() dofile(listeners_dir..name:gsub("[^%w%-]", "_").."_listener.lua") end, debug_traceback); - if not ok then - log("error", "Error while loading listener '%s': %s", tostring(name), tostring(ret)); - return nil, ret; - end - h = listeners[name]; - end - return h; -end - -function start(name, udata) - local h, err = get(name); - if not h then - error("No such connection module: "..name.. (err and (" ("..err..")") or ""), 0); - end - - local interfaces = (udata and udata.interface) or h.default_interface or "*"; - if type(interfaces) == "string" then interfaces = {interfaces}; end - local port = (udata and udata.port) or h.default_port or error("Can't start listener "..name.." because no port was specified, and it has no default port", 0); - local mode = (udata and udata.mode) or h.default_mode or 1; - local ssl = (udata and udata.ssl) or nil; - local autossl = udata and udata.type == "ssl"; - - if autossl and not ssl then - return nil, "no ssl context"; - end - - ok, err = true, {}; - for _, interface in ipairs(interfaces) do - local handler - handler, err[interface] = server.addserver(interface, port, h, mode, autossl and ssl or nil); - ok = ok and handler; - end - - return ok, err; -end - -return _M; diff --git a/net/http.lua b/net/http.lua index 6287f408..59f2c080 100644 --- a/net/http.lua +++ b/net/http.lua @@ -13,9 +13,6 @@ local httpstream_new = require "util.httpstream".new; local server = require "net.server" -local connlisteners_get = require "net.connlisteners".get; -local listener = connlisteners_get("httpclient") or error("No httpclient listener!"); - local t_insert, t_concat = table.insert, table.concat; local pairs, ipairs = pairs, ipairs; local tonumber, tostring, xpcall, select, debug_traceback, char, format = @@ -25,6 +22,52 @@ local log = require "util.logger".init("http"); module "http" +local requests = {}; -- Open requests + +local listener = { default_port = 80, default_mode = "*a" }; + +function listener.onconnect(conn) + local req = requests[conn]; + -- Send the request + local request_line = { req.method or "GET", " ", req.path, " HTTP/1.1\r\n" }; + if req.query then + t_insert(request_line, 4, "?"..req.query); + end + + conn:write(t_concat(request_line)); + local t = { [2] = ": ", [4] = "\r\n" }; + for k, v in pairs(req.headers) do + t[1], t[3] = k, v; + conn:write(t_concat(t)); + end + conn:write("\r\n"); + + if req.body then + conn:write(req.body); + end +end + +function listener.onincoming(conn, data) + local request = requests[conn]; + + if not request then + log("warn", "Received response from connection %s with no request attached!", tostring(conn)); + return; + end + + if data and request.reader then + request:reader(data); + end +end + +function listener.ondisconnect(conn, err) + local request = requests[conn]; + if request and request.conn then + request:reader(nil); + end + requests[conn] = nil; +end + function urlencode(s) return s and (s:gsub("%W", function (c) return format("%%%02x", c:byte()); end)); end function urldecode(s) return s and (s:gsub("%%(%x%x)", function (c) return char(tonumber(c,16)); end)); end @@ -152,8 +195,7 @@ function request(u, ex, callback) req.reader = request_reader; req.state = "status"; - listener.register_request(req.handler, req); - + requests[req.handler] = req; return req; end diff --git a/net/http/codes.lua b/net/http/codes.lua new file mode 100644 index 00000000..2e701027 --- /dev/null +++ b/net/http/codes.lua @@ -0,0 +1,66 @@ + +local response_codes = { + -- Source: http://www.iana.org/assignments/http-status-codes + -- s/^\(\d*\)\s*\(.*\S\)\s*\[RFC.*\]\s*$/^I["\1"] = "\2"; + [100] = "Continue"; + [101] = "Switching Protocols"; + [102] = "Processing"; + + [200] = "OK"; + [201] = "Created"; + [202] = "Accepted"; + [203] = "Non-Authoritative Information"; + [204] = "No Content"; + [205] = "Reset Content"; + [206] = "Partial Content"; + [207] = "Multi-Status"; + [208] = "Already Reported"; + [226] = "IM Used"; + + [300] = "Multiple Choices"; + [301] = "Moved Permanently"; + [302] = "Found"; + [303] = "See Other"; + [304] = "Not Modified"; + [305] = "Use Proxy"; + -- The 306 status code was used in a previous version of [RFC2616], is no longer used, and the code is reserved. + [307] = "Temporary Redirect"; + + [400] = "Bad Request"; + [401] = "Unauthorized"; + [402] = "Payment Required"; + [403] = "Forbidden"; + [404] = "Not Found"; + [405] = "Method Not Allowed"; + [406] = "Not Acceptable"; + [407] = "Proxy Authentication Required"; + [408] = "Request Timeout"; + [409] = "Conflict"; + [410] = "Gone"; + [411] = "Length Required"; + [412] = "Precondition Failed"; + [413] = "Request Entity Too Large"; + [414] = "Request-URI Too Long"; + [415] = "Unsupported Media Type"; + [416] = "Requested Range Not Satisfiable"; + [417] = "Expectation Failed"; + [422] = "Unprocessable Entity"; + [423] = "Locked"; + [424] = "Failed Dependency"; + -- The 425 status code is reserved for the WebDAV advanced collections expired proposal [RFC2817] + [426] = "Upgrade Required"; + + [500] = "Internal Server Error"; + [501] = "Not Implemented"; + [502] = "Bad Gateway"; + [503] = "Service Unavailable"; + [504] = "Gateway Timeout"; + [505] = "HTTP Version Not Supported"; + [506] = "Variant Also Negotiates"; -- Experimental + [507] = "Insufficient Storage"; + [508] = "Loop Detected"; + [510] = "Not Extended"; +}; + +for k,v in pairs(response_codes) do response_codes[k] = k.." "..v; end +return setmetatable(response_codes, { __index = function(t, k) return k.." Unassigned"; end }) diff --git a/net/http/parser.lua b/net/http/parser.lua new file mode 100644 index 00000000..c98c75af --- /dev/null +++ b/net/http/parser.lua @@ -0,0 +1,116 @@ + +local tonumber = tonumber; +local assert = assert; + +local httpstream = {}; + +function httpstream.new(success_cb, error_cb, parser_type, options_cb) + local client = true; + if not parser_type or parser_type == "server" then client = false; else assert(parser_type == "client", "Invalid parser type"); end + local buf = ""; + local chunked; + local state = nil; + local packet; + local len; + local have_body; + local error; + return { + feed = function(self, data) + if error then return nil, "parse has failed"; end + if not data then -- EOF + if state and client and not len then -- reading client body until EOF + packet.body = buf; + success_cb(packet); + elseif buf ~= "" then -- unexpected EOF + error = true; return error_cb(); + end + return; + end + buf = buf..data; + while #buf > 0 do + if state == nil then -- read request + local index = buf:find("\r\n\r\n", nil, true); + if not index then return; end -- not enough data + local method, path, httpversion, status_code, reason_phrase; + local first_line; + local headers = {}; + for line in buf:sub(1,index+1):gmatch("([^\r\n]+)\r\n") do -- parse request + if first_line then + local key, val = line:match("^([^%s:]+): *(.*)$"); + if not key then error = true; return error_cb("invalid-header-line"); end -- TODO handle multi-line and invalid headers + key = key:lower(); + headers[key] = headers[key] and headers[key]..","..val or val; + else + first_line = line; + if client then + httpversion, status_code, reason_phrase = line:match("^HTTP/(1%.[01]) (%d%d%d) (.*)$"); + if not status_code then error = true; return error_cb("invalid-status-line"); end + have_body = not + ( (options_cb and options_cb().method == "HEAD") + or (status_code == 204 or status_code == 304 or status_code == 301) + or (status_code >= 100 and status_code < 200) ); + chunked = have_body and headers["transfer-encoding"] == "chunked"; + else + method, path, httpversion = line:match("^(%w+) (%S+) HTTP/(1%.[01])$"); + if not method then error = true; return error_cb("invalid-status-line"); end + path = path:gsub("^//+", "/"); -- TODO parse url more + end + end + end + len = tonumber(headers["content-length"]); -- TODO check for invalid len + if client then + -- FIXME handle '100 Continue' response (by skipping it) + if not have_body then len = 0; end + packet = { + code = status_code; + httpversion = httpversion; + headers = headers; + body = have_body and "" or nil; + -- COMPAT the properties below are deprecated + responseversion = httpversion; + responseheaders = headers; + }; + else + len = len or 0; + packet = { + method = method; + path = path; + httpversion = httpversion; + headers = headers; + body = nil; + }; + end + buf = buf:sub(index + 4); + state = true; + end + if state then -- read body + if client then + if chunked then + local index = buf:find("\r\n", nil, true); + if not index then return; end -- not enough data + local chunk_size = buf:match("^%x+"); + if not chunk_size then error = true; return error_cb("invalid-chunk-size"); end + chunk_size = tonumber(chunk_size, 16); + index = index + 2; + if chunk_size == 0 then + state = nil; success_cb(packet); + elseif #buf - index + 1 >= chunk_size then -- we have a chunk + packet.body = packet.body..buf:sub(index, index + chunk_size - 1); + buf = buf:sub(index + chunk_size); + end + error("trailers"); -- FIXME MUST read trailers + elseif len and #buf >= len then + packet.body, buf = buf:sub(1, len), buf:sub(len + 1); + state = nil; success_cb(packet); + end + elseif #buf >= len then + packet.body, buf = buf:sub(1, len), buf:sub(len + 1); + state = nil; success_cb(packet); + end + end + end + end; + }; +end + +return httpstream; diff --git a/net/http/server.lua b/net/http/server.lua new file mode 100644 index 00000000..185ac9a0 --- /dev/null +++ b/net/http/server.lua @@ -0,0 +1,283 @@ + +local t_insert, t_remove, t_concat = table.insert, table.remove, table.concat; +local parser_new = require "net.http.parser".new; +local events = require "util.events".new(); +local addserver = require "net.server".addserver; +local log = require "util.logger".init("http.server"); +local os_date = os.date; +local pairs = pairs; +local s_upper = string.upper; +local setmetatable = setmetatable; +local xpcall = xpcall; +local debug = debug; +local tostring = tostring; +local codes = require "net.http.codes"; +local _G = _G; +local legacy_httpserver = require "net.httpserver"; + +local _M = {}; + +local sessions = {}; +local handlers = {}; + +local listener = {}; + +local function is_wildcard_event(event) + return event:sub(-2, -1) == "/*"; +end +local function is_wildcard_match(wildcard_event, event) + return wildcard_event:sub(1, -2) == event:sub(1, #wildcard_event-1); +end + +local event_map = events._event_map; +setmetatable(events._handlers, { + __index = function (handlers, curr_event) + if is_wildcard_event(curr_event) then return; end -- Wildcard events cannot be fired + -- Find all handlers that could match this event, sort them + -- and then put the array into handlers[event] + local matching_handlers_set = {}; + local handlers_array = {}; + for event, handlers_set in pairs(event_map) do + if event == curr_event or + is_wildcard_event(event) and is_wildcard_match(event, curr_event) then + for handler, priority in pairs(handlers_set) do + matching_handlers_set[handler] = { (select(2, event:gsub("/", "%1"))), priority }; + table.insert(handlers_array, handler); + end + end + end + if #handlers_array == 0 then return; end + table.sort(handlers_array, function(b, a) + local a_score, b_score = matching_handlers_set[a], matching_handlers_set[b]; + for i = 1, #a_score do + if a ~= b then -- If equal, compare next score value + return a_score[i] < b_score[i]; + end + end + return false; + end); + handlers[curr_event] = handlers_array; + return handlers_array; + end; + __newindex = function (handlers, curr_event, handlers_array) + if handlers_array == nil + and is_wildcard_event(curr_event) then + -- Invalidate all matching + for event in pairs(handlers) do + if is_wildcard_match(curr_event, event) then + handlers[event] = nil; + end + end + end + end; +}); + +local handle_request; +local _1, _2, _3; +local function _handle_request() return handle_request(_1, _2, _3); end +local function _traceback_handler(err) log("error", "Traceback[http]: %s: %s", tostring(err), debug.traceback()); end + +function listener.onconnect(conn) + local secure = conn:ssl() and true or nil; + local pending = {}; + local waiting = false; + local function process_next(last_response) + --if waiting then log("debug", "can't process_next, waiting"); return; end + if sessions[conn] and #pending > 0 then + local request = t_remove(pending); + --log("debug", "process_next: %s", request.path); + waiting = true; + --handle_request(conn, request, process_next); + _1, _2, _3 = conn, request, process_next; + if not xpcall(_handle_request, _traceback_handler) then + conn:write("HTTP/1.0 503 Internal Server Error\r\n\r\nAn error occured during the processing of this request."); + conn:close(); + end + else + --log("debug", "ready for more"); + waiting = false; + end + end + local function success_cb(request) + --log("debug", "success_cb: %s", request.path); + request.secure = secure; + t_insert(pending, request); + if not waiting then + process_next(); + end + end + local function error_cb(err) + log("debug", "error_cb: %s", err or "<nil>"); + -- FIXME don't close immediately, wait until we process current stuff + -- FIXME if err, send off a bad-request response + sessions[conn] = nil; + conn:close(); + end + sessions[conn] = parser_new(success_cb, error_cb); +end + +function listener.ondisconnect(conn) + sessions[conn] = nil; +end + +function listener.onincoming(conn, data) + sessions[conn]:feed(data); +end + +local headerfix = setmetatable({}, { + __index = function(t, k) + local v = "\r\n"..k:gsub("_", "-"):gsub("%f[%w].", s_upper)..": "; + t[k] = v; + return v; + end +}); + +function _M.hijack_response(response, listener) + error("TODO"); +end +function handle_request(conn, request, finish_cb) + --log("debug", "handler: %s", request.path); + local headers = {}; + for k,v in pairs(request.headers) do headers[k:gsub("-", "_")] = v; end + request.headers = headers; + request.conn = conn; + + local date_header = os_date('!%a, %d %b %Y %H:%M:%S GMT'); -- FIXME use + local conn_header = request.headers.connection; + local keep_alive = conn_header == "Keep-Alive" or (request.httpversion == "1.1" and conn_header ~= "close"); + + local response = { + request = request; + status_code = 200; + headers = { date = date_header, connection = (keep_alive and "Keep-Alive" or "close") }; + conn = conn; + send = _M.send_response; + finish_cb = finish_cb; + }; + + if not request.headers.host then + response.status_code = 400; + response.headers.content_type = "text/html"; + response:send("<html><head>400 Bad Request</head><body>400 Bad Request: No Host header.</body></html>"); + else + -- TODO call handler + --response.headers.content_type = "text/plain"; + --response:send("host="..(request.headers.host or "").."\npath="..request.path.."\n"..(request.body or "")); + local host = request.headers.host; + if host then + host = host:match("[^:]*"):lower(); + local event = request.method.." "..host..request.path:match("[^?]*"); + local payload = { request = request, response = response }; + --log("debug", "Firing event: %s", event); + local result = events.fire_event(event, payload); + if result ~= nil then + if result ~= true then + local code, body = 200, ""; + local result_type = type(result); + if result_type == "number" then + response.status_code = result; + elseif result_type == "string" then + body = result; + elseif result_type == "table" then + body = result.body; + result.body = nil; + for k, v in pairs(result) do + response[k] = v; + end + end + response:send(body); + end + return; + end + end + + -- if handler not called, fallback to legacy httpserver handlers + _M.legacy_handler(request, response); + end +end +function _M.send_response(response, body) + local status_line = "HTTP/"..response.request.httpversion.." "..(response.status or codes[response.status_code]); + local headers = response.headers; + body = body or ""; + headers.content_length = #body; + + local output = { status_line }; + for k,v in pairs(headers) do + t_insert(output, headerfix[k]..v); + end + t_insert(output, "\r\n\r\n"); + t_insert(output, body); + + response.conn:write(t_concat(output)); + if headers.connection == "Keep-Alive" then + response:finish_cb(); + else + response.conn:close(); + end +end +function _M.legacy_handler(request, response) + log("debug", "Invoking legacy handler"); + local base = request.path:match("^/([^/?]+)"); + local legacy_server = legacy_httpserver and legacy_httpserver.new.http_servers[5280]; + local handler = legacy_server and legacy_server.handlers[base]; + if not handler then handler = legacy_httpserver and legacy_httpserver.set_default_handler.default_handler; end + if handler then + -- add legacy properties to request object + request.url = { path = request.path }; + request.handler = response.conn; + request.id = tostring{}:match("%x+$"); + local headers = {}; + for k,v in pairs(request.headers) do + headers[k:gsub("_", "-")] = v; + end + request.headers = headers; + function request:send(resp) + if self.destroyed then return; end + if resp.body or resp.headers then + if resp.headers then + for k,v in pairs(resp.headers) do response.headers[k] = v; end + end + response:send(resp.body) + else + response:send(resp) + end + self.sent = true; + self:destroy(); + end + function request:destroy() + if self.destroyed then return; end + if not self.sent then return self:send(""); end + self.destroyed = true; + if self.on_destroy then + log("debug", "Request has destroy callback"); + self:on_destroy(); + else + log("debug", "Request has no destroy callback"); + end + end + local r = handler(request.method, request.body, request); + if r ~= true then + request:send(r); + end + else + log("debug", "No handler found"); + response.status_code = 404; + response.headers.content_type = "text/html"; + response:send("<html><head><title>404 Not Found</title></head><body>404 Not Found: No such page.</body></html>"); + end +end + +function _M.add_handler(event, handler, priority) + events.add_handler(event, handler, priority); +end +function _M.remove_handler(event, handler) + events.remove_handler(event, handler); +end + +function _M.listen_on(port, interface, ssl) + addserver(interface or "*", port, listener, "*a", ssl); +end + +_M.listener = listener; +_M.codes = codes; +return _M; diff --git a/net/httpclient_listener.lua b/net/httpclient_listener.lua deleted file mode 100644 index c4e3c153..00000000 --- a/net/httpclient_listener.lua +++ /dev/null @@ -1,66 +0,0 @@ --- Prosody IM --- Copyright (C) 2008-2010 Matthew Wild --- Copyright (C) 2008-2010 Waqas Hussain --- --- This project is MIT/X11 licensed. Please see the --- COPYING file in the source package for more information. --- - -local log = require "util.logger".init("httpclient_listener"); -local t_concat, t_insert = table.concat, table.insert; - -local connlisteners_register = require "net.connlisteners".register; - -local requests = {}; -- Open requests -local buffers = {}; -- Buffers of partial lines - -local httpclient = { default_port = 80, default_mode = "*a" }; - -function httpclient.onconnect(conn) - local req = requests[conn]; - -- Send the request - local request_line = { req.method or "GET", " ", req.path, " HTTP/1.1\r\n" }; - if req.query then - t_insert(request_line, 4, "?"..req.query); - end - - conn:write(t_concat(request_line)); - local t = { [2] = ": ", [4] = "\r\n" }; - for k, v in pairs(req.headers) do - t[1], t[3] = k, v; - conn:write(t_concat(t)); - end - conn:write("\r\n"); - - if req.body then - conn:write(req.body); - end -end - -function httpclient.onincoming(conn, data) - local request = requests[conn]; - - if not request then - log("warn", "Received response from connection %s with no request attached!", tostring(conn)); - return; - end - - if data and request.reader then - request:reader(data); - end -end - -function httpclient.ondisconnect(conn, err) - local request = requests[conn]; - if request and request.conn then - request:reader(nil); - end - requests[conn] = nil; -end - -function httpclient.register_request(conn, req) - log("debug", "Attaching request %s to connection %s", tostring(req.id or req), tostring(conn)); - requests[conn] = req; -end - -connlisteners_register("httpclient", httpclient); diff --git a/net/httpserver.lua b/net/httpserver.lua index 44e8e24d..0f5a4186 100644 --- a/net/httpserver.lua +++ b/net/httpserver.lua @@ -10,8 +10,8 @@ local url_parse = require "socket.url".parse; local httpstream_new = require "util.httpstream".new; -local connlisteners_start = require "net.connlisteners".start; -local connlisteners_get = require "net.connlisteners".get; +--local connlisteners_start = require "net.connlisteners".start; +--local connlisteners_get = require "net.connlisteners".get; local listener; local t_insert, t_concat = table.insert, table.concat; @@ -164,7 +164,7 @@ end function destroy_request(request) log("debug", "Destroying request %s", request.id); - listener = listener or connlisteners_get("httpserver"); + --listener = listener or connlisteners_get("httpserver"); if not request.destroyed then request.destroyed = true; if request.on_destroy then @@ -186,7 +186,7 @@ function new(params) http_server = { handlers = {} }; http_servers[params.port] = http_server; -- We weren't already listening on this port, so start now - connlisteners_start("httpserver", params); + --connlisteners_start("httpserver", params); end if params.base then http_server.handlers[params.base] = params.handler; diff --git a/net/multiplex_listener.lua b/net/multiplex_listener.lua deleted file mode 100644 index b515ccce..00000000 --- a/net/multiplex_listener.lua +++ /dev/null @@ -1,50 +0,0 @@ - -local connlisteners_register = require "net.connlisteners".register; -local connlisteners_get = require "net.connlisteners".get; - -local httpserver_listener = connlisteners_get("httpserver"); -local xmppserver_listener = connlisteners_get("xmppserver"); -local xmppclient_listener = connlisteners_get("xmppclient"); -local xmppcomponent_listener = connlisteners_get("xmppcomponent"); - -local server = { default_mode = "*a" }; - -local buffer = {}; - -function server.onincoming(conn, data) - if not data then return; end - local buf = buffer[conn]; - buffer[conn] = nil; - buf = buf and buf..data or data; - if buf:match("^[a-zA-Z]") then - local listener = httpserver_listener; - conn:setlistener(listener); - local onconnect = listener.onconnect; - if onconnect then onconnect(conn) end - listener.onincoming(conn, buf); - elseif buf:match(">") then - local listener; - local xmlns = buf:match("%sxmlns%s*=%s*['\"]([^'\"]*)"); - if xmlns == "jabber:server" then - listener = xmppserver_listener; - elseif xmlns == "jabber:component:accept" then - listener = xmppcomponent_listener; - else - listener = xmppclient_listener; - end - conn:setlistener(listener); - local onconnect = listener.onconnect; - if onconnect then onconnect(conn) end - listener.onincoming(conn, buf); - elseif #buf > 1024 then - conn:close(); - else - buffer[conn] = buf; - end -end - -function server.ondisconnect(conn, err) - buffer[conn] = nil; -- warn if no buffer? -end - -connlisteners_register("multiplex", server); diff --git a/net/server_event.lua b/net/server_event.lua index dbf5161f..8d6f5597 100644 --- a/net/server_event.lua +++ b/net/server_event.lua @@ -343,24 +343,11 @@ do return nil, "writebuffer not empty, waiting" end else - debug( "try to close server with id:", self.id, "args:", now ) + debug( "try to close server with id:", tostring(self.id), "args:", tostring(now) ) self.fatalerror = "server to close" self:_lock( true ) - local count = 0 - for _, item in ipairs( interfacelist( ) ) do - if ( item.type ~= "server" ) and ( item._server == self ) then -- client/server match - if item:close( now ) then -- writebuffer was empty - count = count + 1 - end - end - end - local timeout = 0 -- dont wait for unfinished writebuffers of clients... - if not now then - timeout = cfg.WRITE_TIMEOUT -- ...or wait for it - end - self:_close( timeout ) -- add new event to remove the server interface - debug( "seconds remained until server is closed:", timeout ) - return count -- returns finished clients with empty writebuffer + self:_close( 0 ) -- add new event to remove the server interface + return true end end diff --git a/net/server_select.lua b/net/server_select.lua index 8802f620..d6cfc1f8 100644 --- a/net/server_select.lua +++ b/net/server_select.lua @@ -202,6 +202,7 @@ wrapserver = function( listeners, socket, ip, serverport, pattern, sslctx, maxco socket:close( ) _sendlistlen = removesocket( _sendlist, socket, _sendlistlen ) _readlistlen = removesocket( _readlist, socket, _readlistlen ) + _server[ip..":"..serverport] = nil; _socketlist[ socket ] = nil handler = nil socket = nil diff --git a/net/xmppcomponent_listener.lua b/net/xmppcomponent_listener.lua deleted file mode 100644 index dd7b2b91..00000000 --- a/net/xmppcomponent_listener.lua +++ /dev/null @@ -1,218 +0,0 @@ --- Prosody IM --- Copyright (C) 2008-2010 Matthew Wild --- Copyright (C) 2008-2010 Waqas Hussain --- --- This project is MIT/X11 licensed. Please see the --- COPYING file in the source package for more information. --- - - -local t_concat = table.concat; -local tostring = tostring; -local type = type; -local pairs = pairs; - -local lxp = require "lxp"; -local logger = require "util.logger"; -local config = require "core.configmanager"; -local connlisteners = require "net.connlisteners"; -local uuid_gen = require "util.uuid".generate; -local jid_split = require "util.jid".split; -local sha1 = require "util.hashes".sha1; -local st = require "util.stanza"; -local new_xmpp_stream = require "util.xmppstream".new; - -local sessions = {}; - -local log = logger.init("componentlistener"); - -local component_listener = { default_port = 5347; default_mode = "*a"; default_interface = config.get("*", "core", "component_interface") or "127.0.0.1" }; - -local xmlns_component = 'jabber:component:accept'; - ---- Callbacks/data for xmppstream to handle streams for us --- - -local stream_callbacks = { default_ns = xmlns_component }; - -local xmlns_xmpp_streams = "urn:ietf:params:xml:ns:xmpp-streams"; - -function stream_callbacks.error(session, error, data, data2) - if session.destroyed then return; end - log("warn", "Error processing component stream: "..tostring(error)); - if error == "no-stream" then - session:close("invalid-namespace"); - elseif error == "parse-error" then - session.log("warn", "External component %s XML parse error: %s", tostring(session.host), tostring(data)); - session:close("not-well-formed"); - elseif error == "stream-error" then - local condition, text = "undefined-condition"; - for child in data:children() do - if child.attr.xmlns == xmlns_xmpp_streams then - if child.name ~= "text" then - condition = child.name; - else - text = child:get_text(); - end - if condition ~= "undefined-condition" and text then - break; - end - end - end - text = condition .. (text and (" ("..text..")") or ""); - session.log("info", "Session closed by remote with error: %s", text); - session:close(nil, text); - end -end - -function stream_callbacks.streamopened(session, attr) - if config.get(attr.to, "core", "component_module") ~= "component" then - -- Trying to act as a component domain which - -- hasn't been configured - session:close{ condition = "host-unknown", text = tostring(attr.to).." does not match any configured external components" }; - return; - end - - -- Note that we don't create the internal component - -- until after the external component auths successfully - - session.host = attr.to; - session.streamid = uuid_gen(); - session.notopen = nil; - - session.send(st.stanza("stream:stream", { xmlns=xmlns_component, - ["xmlns:stream"]='http://etherx.jabber.org/streams', id=session.streamid, from=session.host }):top_tag()); - -end - -function stream_callbacks.streamclosed(session) - session.log("debug", "Received </stream:stream>"); - session:close(); -end - -local core_process_stanza = core_process_stanza; - -function stream_callbacks.handlestanza(session, stanza) - -- Namespaces are icky. - if not stanza.attr.xmlns and stanza.name == "handshake" then - stanza.attr.xmlns = xmlns_component; - end - if not stanza.attr.xmlns or stanza.attr.xmlns == "jabber:client" then - local from = stanza.attr.from; - if from then - if session.component_validate_from then - local _, domain = jid_split(stanza.attr.from); - if domain ~= session.host then - -- Return error - session.log("warn", "Component sent stanza with missing or invalid 'from' address"); - session:close{ - condition = "invalid-from"; - text = "Component tried to send from address <"..tostring(from) - .."> which is not in domain <"..tostring(session.host)..">"; - }; - return; - end - end - else - stanza.attr.from = session.host; - end - if not stanza.attr.to then - session.log("warn", "Rejecting stanza with no 'to' address"); - session.send(st.error_reply(stanza, "modify", "bad-request", "Components MUST specify a 'to' address on stanzas")); - return; - end - end - return core_process_stanza(session, stanza); -end - ---- Closing a component connection -local stream_xmlns_attr = {xmlns='urn:ietf:params:xml:ns:xmpp-streams'}; -local default_stream_attr = { ["xmlns:stream"] = "http://etherx.jabber.org/streams", xmlns = stream_callbacks.default_ns, version = "1.0", id = "" }; -local function session_close(session, reason) - if session.destroyed then return; end - local log = session.log or log; - if session.conn then - if session.notopen then - session.send("<?xml version='1.0'?>"); - session.send(st.stanza("stream:stream", default_stream_attr):top_tag()); - end - if reason then - if type(reason) == "string" then -- assume stream error - log("info", "Disconnecting component, <stream:error> is: %s", reason); - session.send(st.stanza("stream:error"):tag(reason, {xmlns = 'urn:ietf:params:xml:ns:xmpp-streams' })); - elseif type(reason) == "table" then - if reason.condition then - local stanza = st.stanza("stream:error"):tag(reason.condition, stream_xmlns_attr):up(); - if reason.text then - stanza:tag("text", stream_xmlns_attr):text(reason.text):up(); - end - if reason.extra then - stanza:add_child(reason.extra); - end - log("info", "Disconnecting component, <stream:error> is: %s", tostring(stanza)); - session.send(stanza); - elseif reason.name then -- a stanza - log("info", "Disconnecting component, <stream:error> is: %s", tostring(reason)); - session.send(reason); - end - end - end - session.send("</stream:stream>"); - session.conn:close(); - component_listener.ondisconnect(session.conn, "stream error"); - end -end - ---- Component connlistener -function component_listener.onconnect(conn) - local _send = conn.write; - local session = { type = "component", conn = conn, send = function (data) return _send(conn, tostring(data)); end }; - - -- Logging functions -- - local conn_name = "jcp"..tostring(conn):match("[a-f0-9]+$"); - session.log = logger.init(conn_name); - session.close = session_close; - - session.log("info", "Incoming Jabber component connection"); - - local stream = new_xmpp_stream(session, stream_callbacks); - session.stream = stream; - - session.notopen = true; - - function session.reset_stream() - session.notopen = true; - session.stream:reset(); - end - - function session.data(conn, data) - local ok, err = stream:feed(data); - if ok then return; end - log("debug", "Received invalid XML (%s) %d bytes: %s", tostring(err), #data, data:sub(1, 300):gsub("[\r\n]+", " "):gsub("[%z\1-\31]", "_")); - session:close("not-well-formed"); - end - - session.dispatch_stanza = stream_callbacks.handlestanza; - - sessions[conn] = session; -end -function component_listener.onincoming(conn, data) - local session = sessions[conn]; - session.data(conn, data); -end -function component_listener.ondisconnect(conn, err) - local session = sessions[conn]; - if session then - (session.log or log)("info", "component disconnected: %s (%s)", tostring(session.host), tostring(err)); - if session.on_destroy then session:on_destroy(err); end - sessions[conn] = nil; - for k in pairs(session) do - if k ~= "log" and k ~= "close" then - session[k] = nil; - end - end - session.destroyed = true; - session = nil; - end -end - -connlisteners.register('xmppcomponent', component_listener); diff --git a/net/xmppserver_listener.lua b/net/xmppserver_listener.lua deleted file mode 100644 index 048c6c7d..00000000 --- a/net/xmppserver_listener.lua +++ /dev/null @@ -1,209 +0,0 @@ --- Prosody IM --- Copyright (C) 2008-2010 Matthew Wild --- Copyright (C) 2008-2010 Waqas Hussain --- --- This project is MIT/X11 licensed. Please see the --- COPYING file in the source package for more information. --- - - -local tostring = tostring; -local type = type; -local xpcall = xpcall; -local s_format = string.format; -local traceback = debug.traceback; - -local logger = require "logger"; -local log = logger.init("xmppserver_listener"); -local st = require "util.stanza"; -local connlisteners_register = require "net.connlisteners".register; -local new_xmpp_stream = require "util.xmppstream".new; -local s2s_new_incoming = require "core.s2smanager".new_incoming; -local s2s_streamopened = require "core.s2smanager".streamopened; -local s2s_streamclosed = require "core.s2smanager".streamclosed; -local s2s_destroy_session = require "core.s2smanager".destroy_session; -local s2s_attempt_connect = require "core.s2smanager".attempt_connection; -local stream_callbacks = { default_ns = "jabber:server", - streamopened = s2s_streamopened, streamclosed = s2s_streamclosed, handlestanza = core_process_stanza }; - -local xmlns_xmpp_streams = "urn:ietf:params:xml:ns:xmpp-streams"; - -function stream_callbacks.error(session, error, data) - if error == "no-stream" then - session:close("invalid-namespace"); - elseif error == "parse-error" then - session.log("debug", "Server-to-server XML parse error: %s", tostring(error)); - session:close("not-well-formed"); - elseif error == "stream-error" then - local condition, text = "undefined-condition"; - for child in data:children() do - if child.attr.xmlns == xmlns_xmpp_streams then - if child.name ~= "text" then - condition = child.name; - else - text = child:get_text(); - end - if condition ~= "undefined-condition" and text then - break; - end - end - end - text = condition .. (text and (" ("..text..")") or ""); - session.log("info", "Session closed by remote with error: %s", text); - session:close(nil, text); - end -end - -local function handleerr(err) log("error", "Traceback[s2s]: %s: %s", tostring(err), traceback()); end -function stream_callbacks.handlestanza(session, stanza) - if stanza.attr.xmlns == "jabber:client" then --COMPAT: Prosody pre-0.6.2 may send jabber:client - stanza.attr.xmlns = nil; - end - stanza = session.filter("stanzas/in", stanza); - if stanza then - return xpcall(function () return core_process_stanza(session, stanza) end, handleerr); - end -end - -local sessions = {}; -local xmppserver = { default_port = 5269, default_mode = "*a", default_interface = "*" }; - --- These are session methods -- - -local stream_xmlns_attr = {xmlns='urn:ietf:params:xml:ns:xmpp-streams'}; -local default_stream_attr = { ["xmlns:stream"] = "http://etherx.jabber.org/streams", xmlns = stream_callbacks.default_ns, version = "1.0", id = "" }; -local function session_close(session, reason, remote_reason) - local log = session.log or log; - if session.conn then - if session.notopen then - session.sends2s("<?xml version='1.0'?>"); - session.sends2s(st.stanza("stream:stream", default_stream_attr):top_tag()); - end - if reason then - if type(reason) == "string" then -- assume stream error - log("info", "Disconnecting %s[%s], <stream:error> is: %s", session.host or "(unknown host)", session.type, reason); - session.sends2s(st.stanza("stream:error"):tag(reason, {xmlns = 'urn:ietf:params:xml:ns:xmpp-streams' })); - elseif type(reason) == "table" then - if reason.condition then - local stanza = st.stanza("stream:error"):tag(reason.condition, stream_xmlns_attr):up(); - if reason.text then - stanza:tag("text", stream_xmlns_attr):text(reason.text):up(); - end - if reason.extra then - stanza:add_child(reason.extra); - end - log("info", "Disconnecting %s[%s], <stream:error> is: %s", session.host or "(unknown host)", session.type, tostring(stanza)); - session.sends2s(stanza); - elseif reason.name then -- a stanza - log("info", "Disconnecting %s->%s[%s], <stream:error> is: %s", session.from_host or "(unknown host)", session.to_host or "(unknown host)", session.type, tostring(reason)); - session.sends2s(reason); - end - end - end - session.sends2s("</stream:stream>"); - if session.notopen or not session.conn:close() then - session.conn:close(true); -- Force FIXME: timer? - end - session.conn:close(); - xmppserver.ondisconnect(session.conn, remote_reason or (reason and (reason.text or reason.condition)) or reason or "stream closed"); - end -end - - --- End of session methods -- - -local function initialize_session(session) - local stream = new_xmpp_stream(session, stream_callbacks); - session.stream = stream; - - session.notopen = true; - - function session.reset_stream() - session.notopen = true; - session.stream:reset(); - end - - local filter = session.filter; - function session.data(data) - data = filter("bytes/in", data); - if data then - local ok, err = stream:feed(data); - if ok then return; end - (session.log or log)("warn", "Received invalid XML: %s", data); - (session.log or log)("warn", "Problem was: %s", err); - session:close("not-well-formed"); - end - end - - session.close = session_close; - local handlestanza = stream_callbacks.handlestanza; - function session.dispatch_stanza(session, stanza) - return handlestanza(session, stanza); - end -end - -function xmppserver.onconnect(conn) - if not sessions[conn] then -- May be an existing outgoing session - local session = s2s_new_incoming(conn); - sessions[conn] = session; - - -- Logging functions -- - local conn_name = "s2sin"..tostring(conn):match("[a-f0-9]+$"); - session.log = logger.init(conn_name); - - session.log("info", "Incoming s2s connection"); - - initialize_session(session); - end -end - -function xmppserver.onincoming(conn, data) - local session = sessions[conn]; - if session then - session.data(data); - end -end - -function xmppserver.onstatus(conn, status) - if status == "ssl-handshake-complete" then - local session = sessions[conn]; - if session and session.direction == "outgoing" then - local to_host, from_host = session.to_host, session.from_host; - session.log("debug", "Sending stream header..."); - session.sends2s(s_format([[<stream:stream xmlns='jabber:server' xmlns:db='jabber:server:dialback' xmlns:stream='http://etherx.jabber.org/streams' from='%s' to='%s' version='1.0'>]], from_host, to_host)); - end - end -end - -function xmppserver.ondisconnect(conn, err) - local session = sessions[conn]; - if session then - if err and err ~= "closed" and session.type == "s2sout_unauthed" then - (session.log or log)("debug", "s2s connection attempt failed: %s", err); - if s2s_attempt_connect(session, err) then - (session.log or log)("debug", "...so we're going to try another target"); - return; -- Session lives for now - end - end - (session.log or log)("info", "s2s disconnected: %s->%s (%s)", tostring(session.from_host), tostring(session.to_host), tostring(err or "closed")); - s2s_destroy_session(session, err); - sessions[conn] = nil; - session = nil; - end -end - -function xmppserver.register_outgoing(conn, session) - session.direction = "outgoing"; - sessions[conn] = session; - - initialize_session(session); -end - -connlisteners_register("xmppserver", xmppserver); - - --- We need to perform some initialisation when a connection is created --- We also need to perform that same initialisation at other points (SASL, TLS, ...) - --- ...and we need to handle data --- ...and record all sessions associated with connections diff --git a/plugins/adhoc/adhoc.lib.lua b/plugins/adhoc/adhoc.lib.lua index 0cb4efe1..57059b3f 100644 --- a/plugins/adhoc/adhoc.lib.lua +++ b/plugins/adhoc/adhoc.lib.lua @@ -25,6 +25,7 @@ function _M.new(name, node, handler, permission) end function _M.handle_cmd(command, origin, stanza) + local cmdtag, actions; local sessionid = stanza.tags[1].attr.sessionid or uuid.generate(); local dataIn = {}; dataIn.to = stanza.attr.to; @@ -58,7 +59,7 @@ function _M.handle_cmd(command, origin, stanza) elseif name == "error" then cmdtag:tag("note", {type="error"}):text(content.message):up(); elseif name =="actions" then - local actions = st.stanza("actions"); + actions = st.stanza("actions"); for _, action in ipairs(content) do if (action == "prev") or (action == "next") or (action == "complete") then actions:tag(action):up(); @@ -67,7 +68,6 @@ function _M.handle_cmd(command, origin, stanza) '" at node "'..command.node..'" provided an invalid action "'..action..'"'); end end - cmdtag:add_child(actions); elseif name == "form" then cmdtag:add_child((content.layout or content):form(content.values)); elseif name == "result" then @@ -76,6 +76,13 @@ function _M.handle_cmd(command, origin, stanza) cmdtag:add_child(content); end end + + if not actions then + actions = st.stanza("actions"); + actions:tag("complete"):up(); + end + cmdtag:add_child(actions); + stanza:add_child(cmdtag); origin.send(stanza); diff --git a/plugins/mod_admin_adhoc.lua b/plugins/mod_admin_adhoc.lua index d78c1aee..6f1357a9 100644 --- a/plugins/mod_admin_adhoc.lua +++ b/plugins/mod_admin_adhoc.lua @@ -10,7 +10,8 @@ local prosody = _G.prosody; local hosts = prosody.hosts; local t_concat = table.concat; -require "util.iterators"; +local iterators = require "util.iterators"; +local keys, values = iterators.keys, iterators.values; local usermanager_user_exists = require "core.usermanager".user_exists; local usermanager_create_user = require "core.usermanager".create_user; local usermanager_get_password = require "core.usermanager".get_password; @@ -23,6 +24,7 @@ local dataforms_new = require "util.dataforms".new; local array = require "util.array"; local modulemanager = require "modulemanager"; +module:depends"adhoc"; local adhoc_new = module:require "adhoc".new; function add_user_command_handler(self, data, state) diff --git a/plugins/mod_admin_telnet.lua b/plugins/mod_admin_telnet.lua index 0dfdc827..202170ba 100644 --- a/plugins/mod_admin_telnet.lua +++ b/plugins/mod_admin_telnet.lua @@ -6,27 +6,25 @@ -- COPYING file in the source package for more information. -- -module.host = "*"; +module:set_global(); local _G = _G; local prosody = _G.prosody; local hosts = prosody.hosts; -local connlisteners_register = require "net.connlisteners".register; -local console_listener = { default_port = 5582; default_mode = "*l"; default_interface = "127.0.0.1" }; +local console_listener = { default_port = 5582; default_mode = "*l"; interface = "127.0.0.1" }; -require "util.iterators"; +local iterators = require "util.iterators"; +local keys, values = iterators.keys, iterators.values; local jid_bare = require "util.jid".bare; local set, array = require "util.set", require "util.array"; local cert_verify_identity = require "util.x509".verify_identity; -local commands = {}; -local def_env = {}; +local commands = module:shared("commands") +local def_env = module:shared("env"); local default_env_mt = { __index = def_env }; -prosody.console = { commands = commands, env = def_env }; - local function redirect_output(_G, session) local env = setmetatable({ print = session.print }, { __index = function (t, k) return rawget(_G, k); end }); env.dofile = function(name) @@ -149,8 +147,6 @@ function console_listener.ondisconnect(conn, err) end end -connlisteners_register('console', console_listener); - -- Console commands -- -- These are simple commands, not valid standalone in Lua @@ -281,8 +277,12 @@ local function get_hosts_set(hosts, module) return set.new { hosts }; elseif hosts == nil then local mm = require "modulemanager"; - return set.new(array.collect(keys(prosody.hosts))) + local hosts_set = set.new(array.collect(keys(prosody.hosts))) / function (host) return prosody.hosts[host].type == "local" or module and mm.is_loaded(host, module); end; + if module and mm.get_module("*", module) then + hosts_set:add("*"); + end + return hosts_set; end end @@ -292,16 +292,22 @@ function def_env.module:load(name, hosts, config) hosts = get_hosts_set(hosts); -- Load the module for each host - local ok, err, count = true, nil, 0; + local ok, err, count, mod = true, nil, 0, nil; for host in hosts do if (not mm.is_loaded(host, name)) then - ok, err = mm.load(host, name, config); - if not ok then + mod, err = mm.load(host, name, config); + if not mod then ok = false; + if err == "global-module-already-loaded" then + if count > 0 then + ok, err, count = true, nil, 1; + end + break; + end self.session.print(err or "Unknown error loading module"); else count = count + 1; - self.session.print("Loaded for "..host); + self.session.print("Loaded for "..mod.module.host); end end end @@ -334,11 +340,15 @@ end function def_env.module:reload(name, hosts) local mm = require "modulemanager"; - hosts = get_hosts_set(hosts, name); - + hosts = array.collect(get_hosts_set(hosts, name)):sort(function (a, b) + if a == "*" then return true + elseif b == "*" then return false + else return a < b; end + end); + -- Reload the module for each host local ok, err, count = true, nil, 0; - for host in hosts do + for _, host in ipairs(hosts) do if mm.is_loaded(host, name) then ok, err = mm.reload(host, name); if not ok then @@ -359,6 +369,7 @@ end function def_env.module:list(hosts) if hosts == nil then hosts = array.collect(keys(prosody.hosts)); + table.insert(hosts, 1, "*"); end if type(hosts) == "string" then hosts = { hosts }; @@ -369,8 +380,8 @@ function def_env.module:list(hosts) local print = self.session.print; for _, host in ipairs(hosts) do - print(host..":"); - local modules = array.collect(keys(prosody.hosts[host] and prosody.hosts[host].modules or {})):sort(); + print((host == "*" and "Global" or host)..":"); + local modules = array.collect(keys(modulemanager.get_modules(host) or {})):sort(); if #modules == 0 then if prosody.hosts[host] then print(" No modules loaded"); @@ -766,6 +777,51 @@ function def_env.host:list() return true, i.." hosts"; end +def_env.port = {}; + +function def_env.port:list() + local print = self.session.print; + local services = portmanager.get_active_services().data; + local ordered_services, n_ports = {}, 0; + for service, interfaces in pairs(services) do + table.insert(ordered_services, service); + end + table.sort(ordered_services); + for _, service in ipairs(ordered_services) do + local ports_list = {}; + for interface, ports in pairs(services[service]) do + for port in pairs(ports) do + table.insert(ports_list, "["..interface.."]:"..port); + end + end + n_ports = n_ports + #ports_list; + print(service..": "..table.concat(ports_list, ", ")); + end + return true, #ordered_services.." services listening on "..n_ports.." ports"; +end + +function def_env.port:close(close_port, close_interface) + close_port = assert(tonumber(close_port), "Invalid port number"); + local n_closed = 0; + local services = portmanager.get_active_services().data; + for service, interfaces in pairs(services) do + for interface, ports in pairs(interfaces) do + if not close_interface or close_interface == interface then + if ports[close_port] then + self.session.print("Closing ["..interface.."]:"..close_port.."..."); + local ok, err = portmanager.close(interface, close_port) + if not ok then + self.session.print("Failed to close "..interface.." "..port..": "..err); + else + n_closed = n_closed + 1; + end + end + end + end + end + return true, "Closed "..n_closed.." ports"; +end + ------------- function printbanner(session) @@ -796,4 +852,9 @@ if option and option ~= "short" and option ~= "full" and option ~= "graphic" the end end -prosody.net_activate_ports("console", "console", {5582}, "tcp"); +module:add_item("net-provider", { + name = "console"; + listener = console_listener; + default_port = 5582; + private = true; +}); diff --git a/plugins/mod_auth_internal_hashed.lua b/plugins/mod_auth_internal_hashed.lua index ee810426..399044ad 100644 --- a/plugins/mod_auth_internal_hashed.lua +++ b/plugins/mod_auth_internal_hashed.lua @@ -54,7 +54,7 @@ local iteration_count = 4096; function new_hashpass_provider(host) local provider = { name = "internal_hashed" }; - log("debug", "initializing hashpass authentication provider for host '%s'", host); + log("debug", "initializing internal_hashed authentication provider for host '%s'", host); function provider.test_password(username, password) local credentials = datamanager.load(username, host, "accounts") or {}; diff --git a/plugins/mod_auth_internal_plain.lua b/plugins/mod_auth_internal_plain.lua index 784553ea..93b50351 100644 --- a/plugins/mod_auth_internal_plain.lua +++ b/plugins/mod_auth_internal_plain.lua @@ -23,7 +23,7 @@ local prosody = _G.prosody; function new_default_provider(host) local provider = { name = "internal_plain" }; - log("debug", "initializing default authentication provider for host '%s'", host); + log("debug", "initializing internal_plain authentication provider for host '%s'", host); function provider.test_password(username, password) log("debug", "test password '%s' for user %s at host %s", password, username, module.host); diff --git a/plugins/mod_bosh.lua b/plugins/mod_bosh.lua index 8e87e140..c5576004 100644 --- a/plugins/mod_bosh.lua +++ b/plugins/mod_bosh.lua @@ -6,7 +6,7 @@ -- COPYING file in the source package for more information. -- -module.host = "*" -- Global module +module:set_global(); -- Global module local hosts = _G.hosts; local new_xmpp_stream = require "util.xmppstream".new; diff --git a/net/xmppclient_listener.lua b/plugins/mod_c2s.lua index 4cc90cbf..743fe3d2 100644 --- a/net/xmppclient_listener.lua +++ b/plugins/mod_c2s.lua @@ -6,31 +6,78 @@ -- COPYING file in the source package for more information. -- +module:set_global(); - -local logger = require "logger"; -local log = logger.init("xmppclient_listener"); +local add_task = require "util.timer".add_task; local new_xmpp_stream = require "util.xmppstream".new; - -local connlisteners_register = require "net.connlisteners".register; - +local nameprep = require "util.encodings".stringprep.nameprep; +local portmanager = require "core.portmanager"; local sessionmanager = require "core.sessionmanager"; -local sm_new_session, sm_destroy_session = sessionmanager.new_session, sessionmanager.destroy_session; -local sm_streamopened = sessionmanager.streamopened; -local sm_streamclosed = sessionmanager.streamclosed; local st = require "util.stanza"; -local xpcall = xpcall; -local tostring = tostring; -local type = type; +local sm_new_session, sm_destroy_session = sessionmanager.new_session, sessionmanager.destroy_session; +local uuid_generate = require "util.uuid".generate; + +local xpcall, tostring, type = xpcall, tostring, type; +local format = string.format; local traceback = debug.traceback; -local config = require "core.configmanager"; -local opt_keepalives = config.get("*", "core", "tcp_keepalives"); +local xmlns_xmpp_streams = "urn:ietf:params:xml:ns:xmpp-streams"; -local stream_callbacks = { default_ns = "jabber:client", - streamopened = sm_streamopened, streamclosed = sm_streamclosed, handlestanza = core_process_stanza }; +local log = module._log; -local xmlns_xmpp_streams = "urn:ietf:params:xml:ns:xmpp-streams"; +local c2s_timeout = module:get_option_number("c2s_timeout"); +local opt_keepalives = module:get_option_boolean("tcp_keepalives", false); + +local sessions = module:shared("sessions"); + +local stream_callbacks = { default_ns = "jabber:client", handlestanza = core_process_stanza }; +local listener = {}; + +--- Stream events handlers +local stream_xmlns_attr = {xmlns='urn:ietf:params:xml:ns:xmpp-streams'}; +local default_stream_attr = { ["xmlns:stream"] = "http://etherx.jabber.org/streams", xmlns = stream_callbacks.default_ns, version = "1.0", id = "" }; + +function stream_callbacks.streamopened(session, attr) + local send = session.send; + session.host = nameprep(attr.to); + if not session.host then + session:close{ condition = "improper-addressing", + text = "A valid 'to' attribute is required on stream headers" }; + return; + end + session.version = tonumber(attr.version) or 0; + session.streamid = uuid_generate(); + (session.log or session)("debug", "Client sent opening <stream:stream> to %s", session.host); + + if not hosts[session.host] then + -- We don't serve this host... + session:close{ condition = "host-unknown", text = "This server does not serve "..tostring(session.host)}; + return; + end + + send("<?xml version='1.0'?>"); + send(format("<stream:stream xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' id='%s' from='%s' version='1.0' xml:lang='en'>", session.streamid, session.host)); + + (session.log or log)("debug", "Sent reply <stream:stream> to client"); + session.notopen = nil; + + -- If session.secure is *false* (not nil) then it means we /were/ encrypting + -- since we now have a new stream header, session is secured + if session.secure == false then + session.secure = true; + end + + local features = st.stanza("stream:features"); + hosts[session.host].events.fire_event("stream-features", { origin = session, features = features }); + module:fire_event("stream-features", session, features); + + send(features); +end + +function stream_callbacks.streamclosed(session) + session.log("debug", "Received </stream:stream>"); + session:close(); +end function stream_callbacks.error(session, error, data) if error == "no-stream" then @@ -67,13 +114,7 @@ function stream_callbacks.handlestanza(session, stanza) end end -local sessions = {}; -local xmppclient = { default_port = 5222, default_mode = "*a" }; - --- These are session methods -- - -local stream_xmlns_attr = {xmlns='urn:ietf:params:xml:ns:xmpp-streams'}; -local default_stream_attr = { ["xmlns:stream"] = "http://etherx.jabber.org/streams", xmlns = stream_callbacks.default_ns, version = "1.0", id = "" }; +--- Session methods local function session_close(session, reason) local log = session.log or log; if session.conn then @@ -104,14 +145,12 @@ local function session_close(session, reason) end session.send("</stream:stream>"); session.conn:close(); - xmppclient.ondisconnect(session.conn, (reason and (reason.text or reason.condition)) or reason or "session closed"); + listener.ondisconnect(session.conn, (reason and (reason.text or reason.condition)) or reason or "session closed"); end end - --- End of session methods -- - -function xmppclient.onconnect(conn) +--- Port listener +function listener.onconnect(conn) local session = sm_new_session(conn); sessions[conn] = session; @@ -122,7 +161,7 @@ function xmppclient.onconnect(conn) session.secure = true; end - if opt_keepalives ~= nil then + if opt_keepalives then conn:setoption("keepalive", opt_keepalives); end @@ -130,7 +169,6 @@ function xmppclient.onconnect(conn) local stream = new_xmpp_stream(session, stream_callbacks); session.stream = stream; - session.notopen = true; function session.reset_stream() @@ -148,21 +186,27 @@ function xmppclient.onconnect(conn) session:close("not-well-formed"); end end + - local handlestanza = stream_callbacks.handlestanza; - function session.dispatch_stanza(session, stanza) - return handlestanza(session, stanza); + if c2s_timeout then + add_task(c2s_timeout, function () + if session.type == "c2s_unauthed" then + session:close("connection-timeout"); + end + end); end + + session.dispatch_stanza = stream_callbacks.handlestanza; end -function xmppclient.onincoming(conn, data) +function listener.onincoming(conn, data) local session = sessions[conn]; if session then session.data(data); end end - -function xmppclient.ondisconnect(conn, err) + +function listener.ondisconnect(conn, err) local session = sessions[conn]; if session then (session.log or log)("info", "Client disconnected: %s", err); @@ -172,8 +216,27 @@ function xmppclient.ondisconnect(conn, err) end end -function xmppclient.associate_session(conn, session) +function listener.associate_session(conn, session) sessions[conn] = session; end -connlisteners_register("xmppclient", xmppclient); +module:add_item("net-provider", { + name = "c2s"; + listener = listener; + default_port = 5222; + encryption = "starttls"; + multiplex = { + pattern = "^<.*:stream.*%sxmlns%s*=%s*(['\"])jabber:client%1.*>"; + }; +}); + +module:add_item("net-provider", { + name = "legacy_ssl"; + listener = listener; + encryption = "ssl"; + multiplex = { + pattern = "^<.*:stream.*%sxmlns%s*=%s*(['\"])jabber:client%1.*>"; + }; +}); + + diff --git a/plugins/mod_component.lua b/plugins/mod_component.lua index f7d09930..5b1eefc7 100644 --- a/plugins/mod_component.lua +++ b/plugins/mod_component.lua @@ -6,95 +6,298 @@ -- COPYING file in the source package for more information. -- -if module:get_host_type() ~= "component" then - error("Don't load mod_component manually, it should be for a component, please see http://prosody.im/doc/components", 0); -end +module:set_global(); local t_concat = table.concat; +local logger = require "util.logger"; local sha1 = require "util.hashes".sha1; local st = require "util.stanza"; +local jid_split = require "util.jid".split; +local new_xmpp_stream = require "util.xmppstream".new; +local uuid_gen = require "util.uuid".generate; + + local log = module._log; -local main_session, send; +local sessions = module:shared("sessions"); -local function on_destroy(session, err) - if main_session == session then - connected = false; - main_session = nil; +function module.add_host(module) + if module:get_host_type() ~= "component" then + error("Don't load mod_component manually, it should be for a component, please see http://prosody.im/doc/components", 0); + end + + local env = module.environment; + env.connected = false; + + local send; + + local function on_destroy(session, err) + env.connected = false; send = nil; session.on_destroy = nil; end + + -- Handle authentication attempts by component + local function handle_component_auth(event) + local session, stanza = event.origin, event.stanza; + + if session.type ~= "component" then return; end + + if (not session.host) or #stanza.tags > 0 then + (session.log or log)("warn", "Invalid component handshake for host: %s", session.host); + session:close("not-authorized"); + return true; + end + + local secret = module:get_option("component_secret"); + if not secret then + (session.log or log)("warn", "Component attempted to identify as %s, but component_secret is not set", session.host); + session:close("not-authorized"); + return true; + end + + local supplied_token = t_concat(stanza); + local calculated_token = sha1(session.streamid..secret, true); + if supplied_token:lower() ~= calculated_token:lower() then + module:log("info", "Component authentication failed for %s", session.host); + session:close{ condition = "not-authorized", text = "Given token does not match calculated token" }; + return true; + end + + if env.connected then + module:log("error", "Second component attempted to connect, denying connection"); + session:close{ condition = "conflict", text = "Component already connected" }; + end + + env.connected = true; + send = session.send; + session.on_destroy = on_destroy; + session.component_validate_from = module:get_option_boolean("validate_from_addresses", true); + module:log("info", "External component successfully authenticated"); + session.send(st.stanza("handshake")); + + return true; + end + module:hook("stanza/jabber:component:accept:handshake", handle_component_auth); + + -- Handle stanzas addressed to this component + local function handle_stanza(event) + local stanza = event.stanza; + if send then + stanza.attr.xmlns = nil; + send(stanza); + else + module:log("warn", "Component not connected, bouncing error for: %s", stanza:top_tag()); + if stanza.attr.type ~= "error" and stanza.attr.type ~= "result" then + event.origin.send(st.error_reply(stanza, "wait", "service-unavailable", "Component unavailable")); + end + end + return true; + end + + module:hook("iq/bare", handle_stanza, -1); + module:hook("message/bare", handle_stanza, -1); + module:hook("presence/bare", handle_stanza, -1); + module:hook("iq/full", handle_stanza, -1); + module:hook("message/full", handle_stanza, -1); + module:hook("presence/full", handle_stanza, -1); + module:hook("iq/host", handle_stanza, -1); + module:hook("message/host", handle_stanza, -1); + module:hook("presence/host", handle_stanza, -1); end -local function handle_stanza(event) - local stanza = event.stanza; - if send then - stanza.attr.xmlns = nil; - send(stanza); - else - log("warn", "Component not connected, bouncing error for: %s", stanza:top_tag()); - if stanza.attr.type ~= "error" and stanza.attr.type ~= "result" then - event.origin.send(st.error_reply(stanza, "wait", "service-unavailable", "Component unavailable")); +--- Network and stream part --- + +local xmlns_component = 'jabber:component:accept'; + +local listener = {}; + +--- Callbacks/data for xmppstream to handle streams for us --- + +local stream_callbacks = { default_ns = xmlns_component }; + +local xmlns_xmpp_streams = "urn:ietf:params:xml:ns:xmpp-streams"; + +function stream_callbacks.error(session, error, data, data2) + if session.destroyed then return; end + module:log("warn", "Error processing component stream: "..tostring(error)); + if error == "no-stream" then + session:close("invalid-namespace"); + elseif error == "parse-error" then + session.log("warn", "External component %s XML parse error: %s", tostring(session.host), tostring(data)); + session:close("not-well-formed"); + elseif error == "stream-error" then + local condition, text = "undefined-condition"; + for child in data:children() do + if child.attr.xmlns == xmlns_xmpp_streams then + if child.name ~= "text" then + condition = child.name; + else + text = child:get_text(); + end + if condition ~= "undefined-condition" and text then + break; + end + end end + text = condition .. (text and (" ("..text..")") or ""); + session.log("info", "Session closed by remote with error: %s", text); + session:close(nil, text); end - return true; end -module:hook("iq/bare", handle_stanza, -1); -module:hook("message/bare", handle_stanza, -1); -module:hook("presence/bare", handle_stanza, -1); -module:hook("iq/full", handle_stanza, -1); -module:hook("message/full", handle_stanza, -1); -module:hook("presence/full", handle_stanza, -1); -module:hook("iq/host", handle_stanza, -1); -module:hook("message/host", handle_stanza, -1); -module:hook("presence/host", handle_stanza, -1); - ---- Handle authentication attempts by components -function handle_component_auth(event) - local session, stanza = event.origin, event.stanza; - - if session.type ~= "component" then return; end - if main_session == session then return; end +function stream_callbacks.streamopened(session, attr) + if not hosts[attr.to] or not hosts[attr.to].modules.component then + session:close{ condition = "host-unknown", text = tostring(attr.to).." does not match any configured external components" }; + return; + end + session.host = attr.to; + session.streamid = uuid_gen(); + session.notopen = nil; + -- Return stream header + session.send(st.stanza("stream:stream", { xmlns=xmlns_component, + ["xmlns:stream"]='http://etherx.jabber.org/streams', id=session.streamid, from=session.host }):top_tag()); +end - if (not session.host) or #stanza.tags > 0 then - (session.log or log)("warn", "Invalid component handshake for host: %s", session.host); - session:close("not-authorized"); - return true; +function stream_callbacks.streamclosed(session) + session.log("debug", "Received </stream:stream>"); + session:close(); +end + +local core_process_stanza = core_process_stanza; + +function stream_callbacks.handlestanza(session, stanza) + -- Namespaces are icky. + if not stanza.attr.xmlns and stanza.name == "handshake" then + stanza.attr.xmlns = xmlns_component; end - - local secret = module:get_option("component_secret"); - if not secret then - (session.log or log)("warn", "Component attempted to identify as %s, but component_secret is not set", session.host); - session:close("not-authorized"); - return true; + if not stanza.attr.xmlns or stanza.attr.xmlns == "jabber:client" then + local from = stanza.attr.from; + if from then + if session.component_validate_from then + local _, domain = jid_split(stanza.attr.from); + if domain ~= session.host then + -- Return error + session.log("warn", "Component sent stanza with missing or invalid 'from' address"); + session:close{ + condition = "invalid-from"; + text = "Component tried to send from address <"..tostring(from) + .."> which is not in domain <"..tostring(session.host)..">"; + }; + return; + end + end + else + stanza.attr.from = session.host; -- COMPAT: Strictly we shouldn't allow this + end + if not stanza.attr.to then + session.log("warn", "Rejecting stanza with no 'to' address"); + session.send(st.error_reply(stanza, "modify", "bad-request", "Components MUST specify a 'to' address on stanzas")); + return; + end end - - local supplied_token = t_concat(stanza); - local calculated_token = sha1(session.streamid..secret, true); - if supplied_token:lower() ~= calculated_token:lower() then - log("info", "Component authentication failed for %s", session.host); - session:close{ condition = "not-authorized", text = "Given token does not match calculated token" }; - return true; + return core_process_stanza(session, stanza); +end + +--- Closing a component connection +local stream_xmlns_attr = {xmlns='urn:ietf:params:xml:ns:xmpp-streams'}; +local default_stream_attr = { ["xmlns:stream"] = "http://etherx.jabber.org/streams", xmlns = stream_callbacks.default_ns, version = "1.0", id = "" }; +local function session_close(session, reason) + if session.destroyed then return; end + local log = session.log or log; + if session.conn then + if session.notopen then + session.send("<?xml version='1.0'?>"); + session.send(st.stanza("stream:stream", default_stream_attr):top_tag()); + end + if reason then + if type(reason) == "string" then -- assume stream error + module:log("info", "Disconnecting component, <stream:error> is: %s", reason); + session.send(st.stanza("stream:error"):tag(reason, {xmlns = 'urn:ietf:params:xml:ns:xmpp-streams' })); + elseif type(reason) == "table" then + if reason.condition then + local stanza = st.stanza("stream:error"):tag(reason.condition, stream_xmlns_attr):up(); + if reason.text then + stanza:tag("text", stream_xmlns_attr):text(reason.text):up(); + end + if reason.extra then + stanza:add_child(reason.extra); + end + module:log("info", "Disconnecting component, <stream:error> is: %s", tostring(stanza)); + session.send(stanza); + elseif reason.name then -- a stanza + module:log("info", "Disconnecting component, <stream:error> is: %s", tostring(reason)); + session.send(reason); + end + end + end + session.send("</stream:stream>"); + session.conn:close(); + listener.ondisconnect(session.conn, "stream error"); end +end + +--- Component connlistener + +function listener.onconnect(conn) + local _send = conn.write; + local session = { type = "component", conn = conn, send = function (data) return _send(conn, tostring(data)); end }; + + -- Logging functions -- + local conn_name = "jcp"..tostring(conn):match("[a-f0-9]+$"); + session.log = logger.init(conn_name); + session.close = session_close; - -- If component not already created for this host, create one now - if not main_session then - connected = true; - send = session.send; - main_session = session; - session.on_destroy = on_destroy; - session.component_validate_from = module:get_option_boolean("validate_from_addresses", true); - log("info", "Component successfully authenticated: %s", session.host); - session.send(st.stanza("handshake")); - else -- TODO: Implement stanza distribution - log("error", "Multiple components bound to the same address, first one wins: %s", session.host); - session:close{ condition = "conflict", text = "Component already connected" }; + session.log("info", "Incoming Jabber component connection"); + + local stream = new_xmpp_stream(session, stream_callbacks); + session.stream = stream; + + session.notopen = true; + + function session.reset_stream() + session.notopen = true; + session.stream:reset(); + end + + function session.data(conn, data) + local ok, err = stream:feed(data); + if ok then return; end + module:log("debug", "Received invalid XML (%s) %d bytes: %s", tostring(err), #data, data:sub(1, 300):gsub("[\r\n]+", " "):gsub("[%z\1-\31]", "_")); + session:close("not-well-formed"); end - return true; + session.dispatch_stanza = stream_callbacks.handlestanza; + + sessions[conn] = session; +end +function listener.onincoming(conn, data) + local session = sessions[conn]; + session.data(conn, data); +end +function listener.ondisconnect(conn, err) + local session = sessions[conn]; + if session then + (session.log or log)("info", "component disconnected: %s (%s)", tostring(session.host), tostring(err)); + if session.on_destroy then session:on_destroy(err); end + sessions[conn] = nil; + for k in pairs(session) do + if k ~= "log" and k ~= "close" then + session[k] = nil; + end + end + session.destroyed = true; + session = nil; + end end -module:hook("stanza/jabber:component:accept:handshake", handle_component_auth); +module:add_item("net-provider", { + name = "component"; + listener = listener; + default_port = 5347; + multiplex = { + pattern = "^<.*:stream.*%sxmlns%s*=%s*(['\"])jabber:component%1.*>"; + }; +}); diff --git a/plugins/mod_dialback.lua b/plugins/mod_dialback.lua index e27f8657..e578c412 100644 --- a/plugins/mod_dialback.lua +++ b/plugins/mod_dialback.lua @@ -6,22 +6,36 @@ -- COPYING file in the source package for more information. -- +local format = string.format; local hosts = _G.hosts; -local send_s2s = require "core.s2smanager".send_to_host; local s2s_make_authenticated = require "core.s2smanager".make_authenticated; -local s2s_initiate_dialback = require "core.s2smanager".initiate_dialback; -local s2s_verify_dialback = require "core.s2smanager".verify_dialback; local log = module._log; local st = require "util.stanza"; +local sha256_hash = require "util.hashes".sha256; local xmlns_stream = "http://etherx.jabber.org/streams"; local xmlns_dialback = "jabber:server:dialback"; local dialback_requests = setmetatable({}, { __mode = 'v' }); +function generate_dialback(id, to, from) + return sha256_hash(id..to..from..hosts[from].dialback_secret, true); +end + +function initiate_dialback(session) + -- generate dialback key + session.dialback_key = generate_dialback(session.streamid, session.to_host, session.from_host); + session.sends2s(format("<db:result from='%s' to='%s'>%s</db:result>", session.from_host, session.to_host, session.dialback_key)); + session.log("info", "sent dialback key on outgoing s2s stream"); +end + +function verify_dialback(id, to, from, key) + return key == generate_dialback(id, to, from); +end + module:hook("stanza/jabber:server:dialback:verify", function(event) local origin, stanza = event.origin, event.stanza; @@ -32,7 +46,7 @@ module:hook("stanza/jabber:server:dialback:verify", function(event) -- COMPAT: Grr, ejabberd breaks this one too?? it is black and white in XEP-220 example 34 --if attr.from ~= origin.to_host then error("invalid-from"); end local type; - if s2s_verify_dialback(attr.id, attr.from, attr.to, stanza[1]) then + if verify_dialback(attr.id, attr.from, attr.to, stanza[1]) then type = "valid" else type = "invalid" @@ -72,8 +86,7 @@ module:hook("stanza/jabber:server:dialback:result", function(event) end origin.log("debug", "asking %s if key %s belongs to them", attr.from, stanza[1]); - send_s2s(attr.to, attr.from, - st.stanza("db:verify", { from = attr.to, to = attr.from, id = origin.streamid }):text(stanza[1])); + origin.send(st.stanza("db:verify", { from = attr.to, to = attr.from, id = origin.streamid }):text(stanza[1])); return true; end end); @@ -84,6 +97,7 @@ module:hook("stanza/jabber:server:dialback:verify", function(event) if origin.type == "s2sout_unauthed" or origin.type == "s2sout" then local attr = stanza.attr; local dialback_verifying = dialback_requests[attr.from.."/"..(attr.id or "")]; + module:log("debug", tostring(dialback_verifying).." "..attr.from.." "..origin.to_host); if dialback_verifying and attr.from == origin.to_host then local valid; if attr.type == "valid" then @@ -134,18 +148,25 @@ end); module:hook_stanza("urn:ietf:params:xml:ns:xmpp-sasl", "failure", function (origin, stanza) if origin.external_auth == "failed" then module:log("debug", "SASL EXTERNAL failed, falling back to dialback"); - s2s_initiate_dialback(origin); + initiate_dialback(origin); return true; end end, 100); module:hook_stanza(xmlns_stream, "features", function (origin, stanza) if not origin.external_auth or origin.external_auth == "failed" then - s2s_initiate_dialback(origin); + module:log("debug", "Initiating dialback..."); + initiate_dialback(origin); return true; end end, 100); +module:hook("s2s-authenticate-legacy", function (event) + module:log("debug", "Initiating dialback..."); + initiate_dialback(event.origin); + return true; +end, 100); + -- Offer dialback to incoming hosts module:hook("s2s-stream-features", function (data) data.features:tag("dialback", { xmlns='urn:xmpp:features:dialback' }):up(); diff --git a/plugins/mod_http.lua b/plugins/mod_http.lua new file mode 100644 index 00000000..6da4db24 --- /dev/null +++ b/plugins/mod_http.lua @@ -0,0 +1,98 @@ +-- Prosody IM +-- Copyright (C) 2008-2012 Matthew Wild +-- Copyright (C) 2008-2012 Waqas Hussain +-- +-- This project is MIT/X11 licensed. Please see the +-- COPYING file in the source package for more information. +-- + +module:set_global(); + +local parse_url = require "socket.url".parse; +local server = require "net.http.server"; + +local function normalize_path(path) + if path:sub(1,1) ~= "/" then path = "/"..path; end + if path:sub(-1,-1) == "/" then path = path:sub(1, -2); end + return path; +end + +local function get_http_event(host, app_path, key) + local method, path = key:match("^(%S+)%s+(.+)$"); + if not method then + if key:sub(1,1) ~= "/" then + return nil; + end + method, path = "GET", key; + end + path = normalize_path(path); + return method:upper().." "..host..app_path..path; +end + +function module.add_host(module) + local host = module.host; + local apps = {}; + module.environment.apps = apps; + local function http_app_added(event) + local app_name = event.item.name; + local default_app_path = event.item.default_path or "/"..app_name; + local app_path = normalize_path(module:get_option_string(app_name.."_http_path", default_app_path)); + if not app_name then + -- TODO: Link to docs + module:log("error", "HTTP app has no 'name', add one or use module:provides('http', app)"); + return; + end + apps[app_name] = apps[app_name] or {}; + local app_handlers = apps[app_name]; + for key, handler in pairs(event.item.route or {}) do + local event_name = get_http_event(host, app_path, key); + if event_name then + if event_name:sub(-2, -1) == "/*" then + local base_path = event_name:match("/(.+)/*$"); + local _handler = handler; + handler = function (event) + local path = event.request.path:sub(#base_path+1); + return _handler(event, path); + end; + end + if not app_handlers[event_name] then + app_handlers[event_name] = handler; + server.add_handler(event_name, handler); + else + module:log("warn", "App %s added handler twice for '%s', ignoring", app_name, event_name); + end + else + module:log("error", "Invalid route in %s: %q", app_name, key); + end + end + end + + local function http_app_removed(event) + local app_handlers = apps[event.item.name]; + apps[event.item.name] = nil; + for event, handler in pairs(app_handlers) do + server.remove_handler(event, handler); + end + end + + module:handle_items("http-provider", http_app_added, http_app_removed); +end + +module:add_item("net-provider", { + name = "http"; + listener = server.listener; + default_port = 5280; + multiplex = { + pattern = "^[A-Z]"; + }; +}); + +module:add_item("net-provider", { + name = "https"; + listener = server.listener; + default_port = 5281; + encryption = "ssl"; + multiplex = { + pattern = "^[A-Z]"; + }; +}); diff --git a/plugins/mod_http_files.lua b/plugins/mod_http_files.lua new file mode 100644 index 00000000..437633e7 --- /dev/null +++ b/plugins/mod_http_files.lua @@ -0,0 +1,86 @@ +-- Prosody IM +-- Copyright (C) 2008-2010 Matthew Wild +-- Copyright (C) 2008-2010 Waqas Hussain +-- +-- This project is MIT/X11 licensed. Please see the +-- COPYING file in the source package for more information. +-- + +module:depends("http"); +local lfs = require "lfs"; + +local open = io.open; +local stat = lfs.attributes; + +local http_base = module:get_option_string("http_path", "www_files"); + +local response_400 = "<h1>Bad Request</h1>Sorry, we didn't understand your request :("; +local response_403 = "<h1>Forbidden</h1>You don't have permission to view the contents of this directory :("; +local response_404 = "<h1>Page Not Found</h1>Sorry, we couldn't find what you were looking for :("; + +-- TODO: Should we read this from /etc/mime.types if it exists? (startup time...?) +local mime_map = { + html = "text/html"; + htm = "text/html"; + xml = "text/xml"; + xsl = "text/xml"; + txt = "text/plain; charset=utf-8"; + js = "text/javascript"; + css = "text/css"; +}; + +local function preprocess_path(path) + if path:sub(1,1) ~= "/" then + path = "/"..path; + end + local level = 0; + for component in path:gmatch("([^/]+)/") do + if component == ".." then + level = level - 1; + elseif component ~= "." then + level = level + 1; + end + if level < 0 then + return nil; + end + end + return path; +end + +function serve_file(event, path) + local response = event.response; + path = path and preprocess_path(path); + if not path then + response.status = 400; + return response:send(response_400); + end + local full_path = http_base..path; + if stat(full_path, "mode") == "directory" then + if stat(full_path.."/index.html", "mode") == "file" then + return serve_file(event, path.."/index.html"); + end + response.status = 403; + return response:send(response_403); + end + local f, err = open(full_path, "rb"); + if not f then + response.status = 404; + return response:send(response_404.."<br/>"..tostring(err)); + end + local data = f:read("*a"); + f:close(); + if not data then + response.status = 403; + return response:send(response_403); + end + local ext = path:match("%.([^.]*)$"); + response.headers.content_type = mime_map[ext]; -- Content-Type should be nil when not known + return response:send(data); +end + +module:provides("http", { + route = { + ["/*"] = serve_file; + }; +}); + diff --git a/plugins/mod_httpserver.lua b/plugins/mod_httpserver.lua deleted file mode 100644 index 654aff06..00000000 --- a/plugins/mod_httpserver.lua +++ /dev/null @@ -1,97 +0,0 @@ --- Prosody IM --- Copyright (C) 2008-2010 Matthew Wild --- Copyright (C) 2008-2010 Waqas Hussain --- --- This project is MIT/X11 licensed. Please see the --- COPYING file in the source package for more information. --- - - -local httpserver = require "net.httpserver"; -local lfs = require "lfs"; - -local open = io.open; -local t_concat = table.concat; -local stat = lfs.attributes; - -local http_base = config.get("*", "core", "http_path") or "www_files"; - -local response_400 = { status = "400 Bad Request", body = "<h1>Bad Request</h1>Sorry, we didn't understand your request :(" }; -local response_403 = { status = "403 Forbidden", body = "<h1>Forbidden</h1>You don't have permission to view the contents of this directory :(" }; -local response_404 = { status = "404 Not Found", body = "<h1>Page Not Found</h1>Sorry, we couldn't find what you were looking for :(" }; - --- TODO: Should we read this from /etc/mime.types if it exists? (startup time...?) -local mime_map = { - html = "text/html"; - htm = "text/html"; - xml = "text/xml"; - xsl = "text/xml"; - txt = "text/plain; charset=utf-8"; - js = "text/javascript"; - css = "text/css"; -}; - -local function preprocess_path(path) - if path:sub(1,1) ~= "/" then - path = "/"..path; - end - local level = 0; - for component in path:gmatch("([^/]+)/") do - if component == ".." then - level = level - 1; - elseif component ~= "." then - level = level + 1; - end - if level < 0 then - return nil; - end - end - return path; -end - -function serve_file(path) - local full_path = http_base..path; - if stat(full_path, "mode") == "directory" then - if stat(full_path.."/index.html", "mode") == "file" then - return serve_file(path.."/index.html"); - end - return response_403; - end - local f, err = open(full_path, "rb"); - if not f then return response_404; end - local data = f:read("*a"); - f:close(); - if not data then - return response_403; - end - local ext = path:match("%.([^.]*)$"); - local mime = mime_map[ext]; -- Content-Type should be nil when not known - return { - headers = { ["Content-Type"] = mime; }; - body = data; - }; -end - -local function handle_file_request(method, body, request) - local path = preprocess_path(request.url.path); - if not path then return response_400; end - path = path:gsub("^/[^/]+", ""); -- Strip /files/ - return serve_file(path); -end - -local function handle_default_request(method, body, request) - local path = preprocess_path(request.url.path); - if not path then return response_400; end - return serve_file(path); -end - -local function setup() - local ports = config.get(module.host, "core", "http_ports") or { 5280 }; - httpserver.set_default_handler(handle_default_request); - httpserver.new_from_config(ports, handle_file_request, { base = "files" }); -end -if prosody.start_time then -- already started - setup(); -else - prosody.events.add_handler("server-started", setup); -end diff --git a/plugins/mod_motd.lua b/plugins/mod_motd.lua index d567288b..39b74de9 100644 --- a/plugins/mod_motd.lua +++ b/plugins/mod_motd.lua @@ -13,17 +13,18 @@ local motd_jid = module:get_option_string("motd_jid", host); if not motd_text then return; end +local jid_join = require "util.jid".join; local st = require "util.stanza"; motd_text = motd_text:gsub("^%s*(.-)%s*$", "%1"):gsub("\n%s+", "\n"); -- Strip indentation from the config -module:hook("resource-bind", - function (event) - local session = event.session; - local motd_stanza = - st.message({ to = session.username..'@'..session.host, from = motd_jid }) - :tag("body"):text(motd_text); - core_route_stanza(hosts[host], motd_stanza); - module:log("debug", "MOTD send to user %s@%s", session.username, session.host); - -end); +module:hook("presence/bare", function (event) + local session, stanza = event.origin, event.stanza; + if not session.presence and not stanza.attr.type then + local motd_stanza = + st.message({ to = session.full_jid, from = motd_jid }) + :tag("body"):text(motd_text); + core_route_stanza(hosts[host], motd_stanza); + module:log("debug", "MOTD send to user %s", session.full_jid); + end +end, 1); diff --git a/plugins/mod_net_multiplex.lua b/plugins/mod_net_multiplex.lua new file mode 100644 index 00000000..44e1c1ee --- /dev/null +++ b/plugins/mod_net_multiplex.lua @@ -0,0 +1,70 @@ +module:set_global(); + +local max_buffer_len = module:get_option_number("multiplex_buffer_size", 1024); + +local portmanager = require "core.portmanager"; + +local available_services = {}; + +local function add_service(service) + local multiplex_pattern = service.multiplex and service.multiplex.pattern; + if multiplex_pattern then + module:log("debug", "Adding multiplex service %q with pattern %q", service.name, multiplex_pattern); + available_services[service] = multiplex_pattern; + else + module:log("debug", "Service %q is not multiplex-capable", service.name); + end +end +module:hook("service-added", function (event) add_service(event.service); end); +module:hook("service-removed", function (event) available_services[event.service] = nil; end); + +for service_name, services in pairs(portmanager.get_registered_services()) do + for i, service in ipairs(services) do + add_service(service); + end +end + +local buffers = {}; + +local listener = { default_mode = "*a" }; + +function listener.onconnect() +end + +function listener.onincoming(conn, data) + if not data then return; end + local buf = buffers[conn]; + buffers[conn] = nil; + buf = buf and buf..data or data; + for service, multiplex_pattern in pairs(available_services) do + if buf:match(multiplex_pattern) then + module:log("debug", "Routing incoming connection to %s", service.name); + local listener = service.listener; + conn:setlistener(listener); + local onconnect = listener.onconnect; + if onconnect then onconnect(conn) end + return listener.onincoming(conn, buf); + end + end + if #buf > max_buffer_len then -- Give up + conn:close(); + else + buffers[conn] = buf; + end +end + +function listener.ondisconnect(conn, err) + buffers[conn] = nil; -- warn if no buffer? +end + +module:add_item("net-provider", { + name = "multiplex"; + config_prefix = ""; + listener = listener; +}); + +module:provides("net", { + name = "multiplex_ssl"; + config_prefix = "ssl"; + listener = listener; +}); diff --git a/plugins/mod_posix.lua b/plugins/mod_posix.lua index d229c1b8..b388fb9d 100644 --- a/plugins/mod_posix.lua +++ b/plugins/mod_posix.lua @@ -22,7 +22,7 @@ local stat = lfs.attributes; local prosody = _G.prosody; -module.host = "*"; -- we're a global module +module:set_global(); -- we're a global module local umask = module:get_option("umask") or "027"; pposix.umask(umask); diff --git a/plugins/mod_proxy65.lua b/plugins/mod_proxy65.lua index d02f3b58..155cb60d 100644 --- a/plugins/mod_proxy65.lua +++ b/plugins/mod_proxy65.lua @@ -6,35 +6,21 @@ -- This project is MIT/X11 licensed. Please see the -- COPYING file in the source package for more information. -- ---[[ -* to restart the proxy in the console: e.g. -module:unload("proxy65"); -> server.removeserver(<proxy65_port>); -module:load("proxy65", <proxy65_jid>); -]]-- +module:set_global(); -local module = module; -local tostring = tostring; local jid_compare, jid_prep = require "util.jid".compare, require "util.jid".prep; local st = require "util.stanza"; -local connlisteners = require "net.connlisteners"; local sha1 = require "util.hashes".sha1; -local server = require "net.server"; local b64 = require "util.encodings".base64.encode; +local server = require "net.server"; -local host, name = module:get_host(), "SOCKS5 Bytestreams Service"; -local sessions, transfers = {}, {}; - -local proxy_port = module:get_option("proxy65_port") or 5000; -local proxy_interface = module:get_option("proxy65_interface") or "*"; -local proxy_address = module:get_option("proxy65_address") or (proxy_interface ~= "*" and proxy_interface) or host; -local proxy_acl = module:get_option("proxy65_acl"); +local sessions, transfers = module:shared("sessions", "transfers"); local max_buffer_size = 4096; -local connlistener = { default_port = proxy_port, default_interface = proxy_interface, default_mode = "*a" }; +local listener = {}; -function connlistener.onincoming(conn, data) +function listener.onincoming(conn, data) local session = sessions[conn] or {}; local transfer = transfers[session.sha]; @@ -84,7 +70,7 @@ function connlistener.onincoming(conn, data) end end -function connlistener.ondisconnect(conn, err) +function listener.ondisconnect(conn, err) local session = sessions[conn]; if session then if transfers[session.sha] then @@ -101,88 +87,90 @@ function connlistener.ondisconnect(conn, err) end end -module:add_identity("proxy", "bytestreams", name); -module:add_feature("http://jabber.org/protocol/bytestreams"); - -module:hook("iq-get/host/http://jabber.org/protocol/disco#info:query", function(event) - local origin, stanza = event.origin, event.stanza; - origin.send(st.reply(stanza):query("http://jabber.org/protocol/disco#info") - :tag("identity", {category='proxy', type='bytestreams', name=name}):up() - :tag("feature", {var="http://jabber.org/protocol/bytestreams"}) ); - return true; -end, -1); - -module:hook("iq-get/host/http://jabber.org/protocol/disco#items:query", function(event) - local origin, stanza = event.origin, event.stanza; - origin.send(st.reply(stanza):query("http://jabber.org/protocol/disco#items")); - return true; -end, -1); +function module.add_host(module) + local host, name = module:get_host(), module:get_option_string("name", "SOCKS5 Bytestreams Service"); + + local proxy_address = module:get_option("proxy65_address", host); + local proxy_port = module:get_option_number("proxy65_port", next(portmanager.get_active_services():search("proxy65", nil)[1])); + local proxy_acl = module:get_option("proxy65_acl"); -module:hook("iq-get/host/http://jabber.org/protocol/bytestreams:query", function(event) - local origin, stanza = event.origin, event.stanza; + module:add_identity("proxy", "bytestreams", name); + module:add_feature("http://jabber.org/protocol/bytestreams"); + + module:hook("iq-get/host/http://jabber.org/protocol/disco#info:query", function(event) + local origin, stanza = event.origin, event.stanza; + origin.send(st.reply(stanza):query("http://jabber.org/protocol/disco#info") + :tag("identity", {category='proxy', type='bytestreams', name=name}):up() + :tag("feature", {var="http://jabber.org/protocol/bytestreams"}) ); + return true; + end, -1); + + module:hook("iq-get/host/http://jabber.org/protocol/disco#items:query", function(event) + local origin, stanza = event.origin, event.stanza; + origin.send(st.reply(stanza):query("http://jabber.org/protocol/disco#items")); + return true; + end, -1); - -- check ACL - while proxy_acl and #proxy_acl > 0 do -- using 'while' instead of 'if' so we can break out of it - local jid = stanza.attr.from; - for _, acl in ipairs(proxy_acl) do - if jid_compare(jid, acl) then break; end + module:hook("iq-get/host/http://jabber.org/protocol/bytestreams:query", function(event) + local origin, stanza = event.origin, event.stanza; + + -- check ACL + while proxy_acl and #proxy_acl > 0 do -- using 'while' instead of 'if' so we can break out of it + local jid = stanza.attr.from; + for _, acl in ipairs(proxy_acl) do + if jid_compare(jid, acl) then break; end + end + module:log("warn", "Denying use of proxy for %s", tostring(stanza.attr.from)); + origin.send(st.error_reply(stanza, "auth", "forbidden")); + return true; end - module:log("warn", "Denying use of proxy for %s", tostring(stanza.attr.from)); - origin.send(st.error_reply(stanza, "auth", "forbidden")); + + local sid = stanza.tags[1].attr.sid; + origin.send(st.reply(stanza):tag("query", {xmlns="http://jabber.org/protocol/bytestreams", sid=sid}) + :tag("streamhost", {jid=host, host=proxy_address, port=proxy_port})); return true; - end - - local sid = stanza.tags[1].attr.sid; - origin.send(st.reply(stanza):tag("query", {xmlns="http://jabber.org/protocol/bytestreams", sid=sid}) - :tag("streamhost", {jid=host, host=proxy_address, port=proxy_port})); - return true; -end); - -module.unload = function() - connlisteners.deregister(module.host .. ':proxy65'); -end - -module:hook("iq-set/host/http://jabber.org/protocol/bytestreams:query", function(event) - local origin, stanza = event.origin, event.stanza; - - local query = stanza.tags[1]; - local sid = query.attr.sid; - local from = stanza.attr.from; - local to = query:get_child_text("activate"); - local prepped_to = jid_prep(to); - - local info = "sid: "..tostring(sid)..", initiator: "..tostring(from)..", target: "..tostring(prepped_to or to); - if prepped_to and sid then - local sha = sha1(sid .. from .. prepped_to, true); - if not transfers[sha] then - module:log("debug", "Activation request has unknown session id; activation failed (%s)", info); - origin.send(st.error_reply(stanza, "modify", "item-not-found")); - elseif not transfers[sha].initiator then - module:log("debug", "The sender was not connected to the proxy; activation failed (%s)", info); - origin.send(st.error_reply(stanza, "cancel", "not-allowed", "The sender (you) is not connected to the proxy")); - --elseif not transfers[sha].target then -- can't happen, as target is set when a transfer object is created - -- module:log("debug", "The recipient was not connected to the proxy; activation failed (%s)", info); - -- origin.send(st.error_reply(stanza, "cancel", "not-allowed", "The recipient is not connected to the proxy")); - else -- if transfers[sha].initiator ~= nil and transfers[sha].target ~= nil then - module:log("debug", "Transfer activated (%s)", info); - transfers[sha].activated = true; - transfers[sha].target:resume(); - transfers[sha].initiator:resume(); - origin.send(st.reply(stanza)); + end); + + module:hook("iq-set/host/http://jabber.org/protocol/bytestreams:query", function(event) + local origin, stanza = event.origin, event.stanza; + + local query = stanza.tags[1]; + local sid = query.attr.sid; + local from = stanza.attr.from; + local to = query:get_child_text("activate"); + local prepped_to = jid_prep(to); + + local info = "sid: "..tostring(sid)..", initiator: "..tostring(from)..", target: "..tostring(prepped_to or to); + if prepped_to and sid then + local sha = sha1(sid .. from .. prepped_to, true); + if not transfers[sha] then + module:log("debug", "Activation request has unknown session id; activation failed (%s)", info); + origin.send(st.error_reply(stanza, "modify", "item-not-found")); + elseif not transfers[sha].initiator then + module:log("debug", "The sender was not connected to the proxy; activation failed (%s)", info); + origin.send(st.error_reply(stanza, "cancel", "not-allowed", "The sender (you) is not connected to the proxy")); + --elseif not transfers[sha].target then -- can't happen, as target is set when a transfer object is created + -- module:log("debug", "The recipient was not connected to the proxy; activation failed (%s)", info); + -- origin.send(st.error_reply(stanza, "cancel", "not-allowed", "The recipient is not connected to the proxy")); + else -- if transfers[sha].initiator ~= nil and transfers[sha].target ~= nil then + module:log("debug", "Transfer activated (%s)", info); + transfers[sha].activated = true; + transfers[sha].target:resume(); + transfers[sha].initiator:resume(); + origin.send(st.reply(stanza)); + end + elseif to and sid then + module:log("debug", "Malformed activation jid; activation failed (%s)", info); + origin.send(st.error_reply(stanza, "modify", "jid-malformed")); + else + module:log("debug", "Bad request; activation failed (%s)", info); + origin.send(st.error_reply(stanza, "modify", "bad-request")); end - elseif to and sid then - module:log("debug", "Malformed activation jid; activation failed (%s)", info); - origin.send(st.error_reply(stanza, "modify", "jid-malformed")); - else - module:log("debug", "Bad request; activation failed (%s)", info); - origin.send(st.error_reply(stanza, "modify", "bad-request")); - end - return true; -end); - -if not connlisteners.register(module.host .. ':proxy65', connlistener) then - module:log("error", "mod_proxy65: Could not establish a connection listener. Check your configuration please."); - module:log("error", "Possibly two proxy65 components are configured to share the same port."); + return true; + end); end -connlisteners.start(module.host .. ':proxy65'); +module:provides("net", { + default_port = 5000; + listener = listener; +}); diff --git a/plugins/s2s/mod_s2s.lua b/plugins/s2s/mod_s2s.lua new file mode 100644 index 00000000..b0bd5b40 --- /dev/null +++ b/plugins/s2s/mod_s2s.lua @@ -0,0 +1,477 @@ +-- Prosody IM +-- Copyright (C) 2008-2010 Matthew Wild +-- Copyright (C) 2008-2010 Waqas Hussain +-- +-- This project is MIT/X11 licensed. Please see the +-- COPYING file in the source package for more information. +-- + +module:set_global(); + +local tostring, type = tostring, type; +local t_insert = table.insert; +local xpcall, traceback = xpcall, debug.traceback; + +local add_task = require "util.timer".add_task; +local st = require "util.stanza"; +local initialize_filters = require "util.filters".initialize; +local nameprep = require "util.encodings".stringprep.nameprep; +local new_xmpp_stream = require "util.xmppstream".new; +local s2s_new_incoming = require "core.s2smanager".new_incoming; +local s2s_new_outgoing = require "core.s2smanager".new_outgoing; +local s2s_destroy_session = require "core.s2smanager".destroy_session; +local uuid_gen = require "util.uuid".generate; +local cert_verify_identity = require "util.x509".verify_identity; + +local s2sout = module:require("s2sout"); + +local connect_timeout = module:get_option_number("s2s_timeout", 60); + +local sessions = module:shared("sessions"); + +--- Handle stanzas to remote domains + +local bouncy_stanzas = { message = true, presence = true, iq = true }; +local function bounce_sendq(session, reason) + local sendq = session.sendq; + if not sendq then return; end + session.log("info", "sending error replies for "..#sendq.." queued stanzas because of failed outgoing connection to "..tostring(session.to_host)); + local dummy = { + type = "s2sin"; + send = function(s) + (session.log or log)("error", "Replying to to an s2s error reply, please report this! Traceback: %s", get_traceback()); + end; + dummy = true; + }; + for i, data in ipairs(sendq) do + local reply = data[2]; + if reply and not(reply.attr.xmlns) and bouncy_stanzas[reply.name] then + reply.attr.type = "error"; + reply:tag("error", {type = "cancel"}) + :tag("remote-server-not-found", {xmlns = "urn:ietf:params:xml:ns:xmpp-stanzas"}):up(); + if reason then + reply:tag("text", {xmlns = "urn:ietf:params:xml:ns:xmpp-stanzas"}) + :text("Server-to-server connection failed: "..reason):up(); + end + core_process_stanza(dummy, reply); + end + sendq[i] = nil; + end + session.sendq = nil; +end + +module:hook("route/remote", function (event) + local from_host, to_host, stanza = event.from_host, event.to_host, event.stanza; + if not hosts[from_host] then + log("warn", "Attempt to send stanza from %s - a host we don't serve", from_host); + return false; + end + local host = hosts[from_host].s2sout[to_host]; + if host then + -- We have a connection to this host already + if host.type == "s2sout_unauthed" and (stanza.name ~= "db:verify" or not host.dialback_key) then + (host.log or log)("debug", "trying to send over unauthed s2sout to "..to_host); + + -- Queue stanza until we are able to send it + if host.sendq then t_insert(host.sendq, {tostring(stanza), stanza.attr.type ~= "error" and stanza.attr.type ~= "result" and st.reply(stanza)}); + else host.sendq = { {tostring(stanza), stanza.attr.type ~= "error" and stanza.attr.type ~= "result" and st.reply(stanza)} }; end + host.log("debug", "stanza [%s] queued ", stanza.name); + return true; + elseif host.type == "local" or host.type == "component" then + log("error", "Trying to send a stanza to ourselves??") + log("error", "Traceback: %s", get_traceback()); + log("error", "Stanza: %s", tostring(stanza)); + return false; + else + (host.log or log)("debug", "going to send stanza to "..to_host.." from "..from_host); + -- FIXME + if host.from_host ~= from_host then + log("error", "WARNING! This might, possibly, be a bug, but it might not..."); + log("error", "We are going to send from %s instead of %s", tostring(host.from_host), tostring(from_host)); + end + host.sends2s(stanza); + host.log("debug", "stanza sent over "..host.type); + return true; + end + end +end, 200); + +module:hook("route/remote", function (event) + local from_host, to_host, stanza = event.from_host, event.to_host, event.stanza; + log("debug", "opening a new outgoing connection for this stanza"); + local host_session = s2s_new_outgoing(from_host, to_host); + + -- Store in buffer + host_session.bounce_sendq = bounce_sendq; + host_session.sendq = { {tostring(stanza), stanza.attr.type ~= "error" and stanza.attr.type ~= "result" and st.reply(stanza)} }; + log("debug", "stanza [%s] queued until connection complete", tostring(stanza.name)); + s2sout.initiate_connection(host_session); + if (not host_session.connecting) and (not host_session.conn) then + log("warn", "Connection to %s failed already, destroying session...", to_host); + s2s_destroy_session(host_session, "Connection failed"); + return false; + end + return true; +end, 100); + +--- Helper to check that a session peer's certificate is valid +local function check_cert_status(session) + local conn = session.conn:socket() + local cert + if conn.getpeercertificate then + cert = conn:getpeercertificate() + end + + if cert then + local chain_valid, errors = conn:getpeerverification() + -- Is there any interest in printing out all/the number of errors here? + if not chain_valid then + (session.log or log)("debug", "certificate chain validation result: invalid"); + session.cert_chain_status = "invalid"; + else + (session.log or log)("debug", "certificate chain validation result: valid"); + session.cert_chain_status = "valid"; + + local host = session.direction == "incoming" and session.from_host or session.to_host + + -- We'll go ahead and verify the asserted identity if the + -- connecting server specified one. + if host then + if cert_verify_identity(host, "xmpp-server", cert) then + session.cert_identity_status = "valid" + else + session.cert_identity_status = "invalid" + end + end + end + end +end + +--- XMPP stream event handlers + +local stream_callbacks = { default_ns = "jabber:server", handlestanza = core_process_stanza }; + +local xmlns_xmpp_streams = "urn:ietf:params:xml:ns:xmpp-streams"; + +function stream_callbacks.streamopened(session, attr) + local send = session.sends2s; + + -- TODO: #29: SASL/TLS on s2s streams + session.version = tonumber(attr.version) or 0; + + -- TODO: Rename session.secure to session.encrypted + if session.secure == false then + session.secure = true; + end + + if session.direction == "incoming" then + -- Send a reply stream header + + -- Validate to/from + local to, from = nameprep(attr.to), nameprep(attr.from); + if not to and attr.to then -- COMPAT: Some servers do not reliably set 'to' (especially on stream restarts) + session:close({ condition = "improper-addressing", text = "Invalid 'to' address" }); + return; + end + if not from and attr.from then -- COMPAT: Some servers do not reliably set 'from' (especially on stream restarts) + session:close({ condition = "improper-addressing", text = "Invalid 'from' address" }); + return; + end + + -- Set session.[from/to]_host if they have not been set already and if + -- this session isn't already authenticated + if session.type == "s2sin_unauthed" and from and not session.from_host then + session.from_host = from; + elseif from ~= session.from_host then + session:close({ condition = "improper-addressing", text = "New stream 'from' attribute does not match original" }); + return; + end + if session.type == "s2sin_unauthed" and to and not session.to_host then + session.to_host = to; + elseif to ~= session.to_host then + session:close({ condition = "improper-addressing", text = "New stream 'to' attribute does not match original" }); + return; + end + + session.streamid = uuid_gen(); + (session.log or log)("debug", "Incoming s2s received %s", st.stanza("stream:stream", attr):top_tag()); + if session.to_host then + if not hosts[session.to_host] then + -- Attempting to connect to a host we don't serve + session:close({ + condition = "host-unknown"; + text = "This host does not serve "..session.to_host + }); + return; + elseif hosts[session.to_host].disallow_s2s then + -- Attempting to connect to a host that disallows s2s + session:close({ + condition = "policy-violation"; + text = "Server-to-server communication is not allowed to this host"; + }); + return; + end + end + + if session.secure and not session.cert_chain_status then check_cert_status(session); end + + send("<?xml version='1.0'?>"); + send(st.stanza("stream:stream", { xmlns='jabber:server', ["xmlns:db"]='jabber:server:dialback', + ["xmlns:stream"]='http://etherx.jabber.org/streams', id=session.streamid, from=session.to_host, to=session.from_host, version=(session.version > 0 and "1.0" or nil) }):top_tag()); + if session.version >= 1.0 then + local features = st.stanza("stream:features"); + + if session.to_host then + hosts[session.to_host].events.fire_event("s2s-stream-features", { origin = session, features = features }); + else + (session.log or log)("warn", "No 'to' on stream header from %s means we can't offer any features", session.from_host or "unknown host"); + end + + log("debug", "Sending stream features: %s", tostring(features)); + send(features); + end + elseif session.direction == "outgoing" then + -- If we are just using the connection for verifying dialback keys, we won't try and auth it + if not attr.id then error("stream response did not give us a streamid!!!"); end + session.streamid = attr.id; + + if session.secure and not session.cert_chain_status then check_cert_status(session); end + + -- Send unauthed buffer + -- (stanzas which are fine to send before dialback) + -- Note that this is *not* the stanza queue (which + -- we can only send if auth succeeds) :) + local send_buffer = session.send_buffer; + if send_buffer and #send_buffer > 0 then + log("debug", "Sending s2s send_buffer now..."); + for i, data in ipairs(send_buffer) do + session.sends2s(tostring(data)); + send_buffer[i] = nil; + end + end + session.send_buffer = nil; + + -- If server is pre-1.0, don't wait for features, just do dialback + if session.version < 1.0 then + if not session.dialback_verifying then + hosts[session.from_host].events.fire_event("s2s-authenticate-legacy", { origin = session }); + else + s2s_mark_connected(session); + end + end + end + session.notopen = nil; + session.send = function(stanza) prosody.events.fire_event("route/remote", { from_host = session.to_host, to_host = session.from_host, stanza = stanza}) end; +end + +function stream_callbacks.streamclosed(session) + (session.log or log)("debug", "Received </stream:stream>"); + session:close(); +end + +function stream_callbacks.streamdisconnected(session, err) + if err and err ~= "closed" then + (session.log or log)("debug", "s2s connection attempt failed: %s", err); + if s2sout.attempt_connection(session, err) then + (session.log or log)("debug", "...so we're going to try another target"); + return true; -- Session lives for now + end + end + (session.log or log)("info", "s2s disconnected: %s->%s (%s)", tostring(session.from_host), tostring(session.to_host), tostring(err or "closed")); + s2s_destroy_session(session, err); +end + +function stream_callbacks.error(session, error, data) + if error == "no-stream" then + session:close("invalid-namespace"); + elseif error == "parse-error" then + session.log("debug", "Server-to-server XML parse error: %s", tostring(error)); + session:close("not-well-formed"); + elseif error == "stream-error" then + local condition, text = "undefined-condition"; + for child in data:children() do + if child.attr.xmlns == xmlns_xmpp_streams then + if child.name ~= "text" then + condition = child.name; + else + text = child:get_text(); + end + if condition ~= "undefined-condition" and text then + break; + end + end + end + text = condition .. (text and (" ("..text..")") or ""); + session.log("info", "Session closed by remote with error: %s", text); + session:close(nil, text); + end +end + +local function handleerr(err) log("error", "Traceback[s2s]: %s: %s", tostring(err), traceback()); end +function stream_callbacks.handlestanza(session, stanza) + if stanza.attr.xmlns == "jabber:client" then --COMPAT: Prosody pre-0.6.2 may send jabber:client + stanza.attr.xmlns = nil; + end + stanza = session.filter("stanzas/in", stanza); + if stanza then + return xpcall(function () return core_process_stanza(session, stanza) end, handleerr); + end +end + +local listener = {}; + +--- Session methods +local stream_xmlns_attr = {xmlns='urn:ietf:params:xml:ns:xmpp-streams'}; +local default_stream_attr = { ["xmlns:stream"] = "http://etherx.jabber.org/streams", xmlns = stream_callbacks.default_ns, version = "1.0", id = "" }; +local function session_close(session, reason, remote_reason) + local log = session.log or log; + if session.conn then + if session.notopen then + session.sends2s("<?xml version='1.0'?>"); + session.sends2s(st.stanza("stream:stream", default_stream_attr):top_tag()); + end + if reason then + if type(reason) == "string" then -- assume stream error + log("info", "Disconnecting %s[%s], <stream:error> is: %s", session.host or "(unknown host)", session.type, reason); + session.sends2s(st.stanza("stream:error"):tag(reason, {xmlns = 'urn:ietf:params:xml:ns:xmpp-streams' })); + elseif type(reason) == "table" then + if reason.condition then + local stanza = st.stanza("stream:error"):tag(reason.condition, stream_xmlns_attr):up(); + if reason.text then + stanza:tag("text", stream_xmlns_attr):text(reason.text):up(); + end + if reason.extra then + stanza:add_child(reason.extra); + end + log("info", "Disconnecting %s[%s], <stream:error> is: %s", session.host or "(unknown host)", session.type, tostring(stanza)); + session.sends2s(stanza); + elseif reason.name then -- a stanza + log("info", "Disconnecting %s->%s[%s], <stream:error> is: %s", session.from_host or "(unknown host)", session.to_host or "(unknown host)", session.type, tostring(reason)); + session.sends2s(reason); + end + end + end + session.sends2s("</stream:stream>"); + if session.notopen or not session.conn:close() then + session.conn:close(true); -- Force FIXME: timer? + end + session.conn:close(); + listener.ondisconnect(session.conn, remote_reason or (reason and (reason.text or reason.condition)) or reason or "stream closed"); + end +end + +-- Session initialization logic shared by incoming and outgoing +local function initialize_session(session) + local stream = new_xmpp_stream(session, stream_callbacks); + session.stream = stream; + + session.notopen = true; + + function session.reset_stream() + session.notopen = true; + session.stream:reset(); + end + + local filter = session.filter; + function session.data(data) + data = filter("bytes/in", data); + if data then + local ok, err = stream:feed(data); + if ok then return; end + (session.log or log)("warn", "Received invalid XML: %s", data); + (session.log or log)("warn", "Problem was: %s", err); + session:close("not-well-formed"); + end + end + + session.close = session_close; + + local handlestanza = stream_callbacks.handlestanza; + function session.dispatch_stanza(session, stanza) + return handlestanza(session, stanza); + end + + local conn = session.conn; + add_task(connect_timeout, function () + if session.conn ~= conn or session.connecting + or session.type == "s2sin" or session.type == "s2sout" then + return; -- Ok, we're connect[ed|ing] + end + -- Not connected, need to close session and clean up + (session.log or log)("debug", "Destroying incomplete session %s->%s due to inactivity", + session.from_host or "(unknown)", session.to_host or "(unknown)"); + session:close("connection-timeout"); + end); +end + +function listener.onconnect(conn) + if not sessions[conn] then -- May be an existing outgoing session + local session = s2s_new_incoming(conn); + sessions[conn] = session; + session.log("debug", "Incoming s2s connection"); + + local filter = initialize_filters(session); + local w = conn.write; + session.sends2s = function (t) + log("debug", "sending: %s", t.top_tag and t:top_tag() or t:match("^([^>]*>?)")); + if t.name then + t = filter("stanzas/out", t); + end + if t then + t = filter("bytes/out", tostring(t)); + if t then + return w(conn, t); + end + end + end + + initialize_session(session); + end +end + +function listener.onincoming(conn, data) + local session = sessions[conn]; + if session then + session.data(data); + end +end + +function listener.onstatus(conn, status) + if status == "ssl-handshake-complete" then + local session = sessions[conn]; + if session and session.direction == "outgoing" then + local to_host, from_host = session.to_host, session.from_host; + session.log("debug", "Sending stream header..."); + session:open_stream(session.from_host, session.to_host); + end + end +end + +function listener.ondisconnect(conn, err) + local session = sessions[conn]; + if session then + if stream_callbacks.streamdisconnected(session, err) then + return; -- Connection lives, for now + end + end + sessions[conn] = nil; +end + +function listener.register_outgoing(conn, session) + session.direction = "outgoing"; + sessions[conn] = session; + initialize_session(session); +end + +s2sout.set_listener(listener); + +module:add_item("net-provider", { + name = "s2s"; + listener = listener; + default_port = 5269; + encryption = "starttls"; + multiplex = { + pattern = "^<.*:stream.*%sxmlns%s*=%s*(['\"])jabber:server%1.*>"; + }; +}); + diff --git a/plugins/s2s/s2sout.lib.lua b/plugins/s2s/s2sout.lib.lua new file mode 100644 index 00000000..af55b273 --- /dev/null +++ b/plugins/s2s/s2sout.lib.lua @@ -0,0 +1,346 @@ +-- Prosody IM +-- Copyright (C) 2008-2010 Matthew Wild +-- Copyright (C) 2008-2010 Waqas Hussain +-- +-- This project is MIT/X11 licensed. Please see the +-- COPYING file in the source package for more information. +-- + +--- Module containing all the logic for connecting to a remote server + +local portmanager = require "core.portmanager"; +local wrapclient = require "net.server".wrapclient; +local initialize_filters = require "util.filters".initialize; +local idna_to_ascii = require "util.encodings".idna.to_ascii; +local add_task = require "util.timer".add_task; +local new_ip = require "util.ip".new_ip; +local rfc3484_dest = require "util.rfc3484".destination; +local socket = require "socket"; +local t_insert, t_sort, ipairs = table.insert, table.sort, ipairs; +local st = require "util.stanza"; + +local s2s_new_outgoing = require "core.s2smanager".new_outgoing; +local s2s_destroy_session = require "core.s2smanager".destroy_session; + +local sources = {}; + +local max_dns_depth = module:get_option_number("dns_max_depth", 3); + +local s2sout = {}; + +local s2s_listener; + + +function s2sout.set_listener(listener) + s2s_listener = listener; +end + +local function compare_srv_priorities(a,b) + return a.priority < b.priority or (a.priority == b.priority and a.weight > b.weight); +end + +local function session_open_stream(session, from, to) + session.sends2s(st.stanza("stream:stream", { + xmlns='jabber:server', ["xmlns:db"]='jabber:server:dialback', + ["xmlns:stream"]='http://etherx.jabber.org/streams', + from=from, to=to, version='1.0', ["xml:lang"]='en'}):top_tag()); +end + +function s2sout.initiate_connection(host_session) + initialize_filters(host_session); + host_session.open_stream = session_open_stream; + + -- Kick the connection attempting machine into life + if not s2sout.attempt_connection(host_session) then + -- Intentionally not returning here, the + -- session is needed, connected or not + s2s_destroy_session(host_session); + end + + if not host_session.sends2s then + -- A sends2s which buffers data (until the stream is opened) + -- note that data in this buffer will be sent before the stream is authed + -- and will not be ack'd in any way, successful or otherwise + local buffer; + function host_session.sends2s(data) + if not buffer then + buffer = {}; + host_session.send_buffer = buffer; + end + log("debug", "Buffering data on unconnected s2sout to %s", to_host); + buffer[#buffer+1] = data; + log("debug", "Buffered item %d: %s", #buffer, tostring(data)); + end + end +end + +function s2sout.attempt_connection(host_session, err) + local from_host, to_host = host_session.from_host, host_session.to_host; + local connect_host, connect_port = to_host and idna_to_ascii(to_host), 5269; + + if not connect_host then + return false; + end + + if not err then -- This is our first attempt + log("debug", "First attempt to connect to %s, starting with SRV lookup...", to_host); + host_session.connecting = true; + local handle; + handle = adns.lookup(function (answer) + handle = nil; + host_session.connecting = nil; + if answer then + log("debug", to_host.." has SRV records, handling..."); + local srv_hosts = {}; + host_session.srv_hosts = srv_hosts; + for _, record in ipairs(answer) do + t_insert(srv_hosts, record.srv); + end + if #srv_hosts == 1 and srv_hosts[1].target == "." then + log("debug", to_host.." does not provide a XMPP service"); + s2s_destroy_session(host_session, err); -- Nothing to see here + return; + end + t_sort(srv_hosts, compare_srv_priorities); + + local srv_choice = srv_hosts[1]; + host_session.srv_choice = 1; + if srv_choice then + connect_host, connect_port = srv_choice.target or to_host, srv_choice.port or connect_port; + log("debug", "Best record found, will connect to %s:%d", connect_host, connect_port); + end + else + log("debug", to_host.." has no SRV records, falling back to A"); + end + -- Try with SRV, or just the plain hostname if no SRV + local ok, err = s2sout.try_connect(host_session, connect_host, connect_port); + if not ok then + if not s2sout.attempt_connection(host_session, err) then + -- No more attempts will be made + s2s_destroy_session(host_session, err); + end + end + end, "_xmpp-server._tcp."..connect_host..".", "SRV"); + + return true; -- Attempt in progress + elseif host_session.ip_hosts then + return s2sout.try_connect(host_session, connect_host, connect_port, err); + elseif host_session.srv_hosts and #host_session.srv_hosts > host_session.srv_choice then -- Not our first attempt, and we also have SRV + host_session.srv_choice = host_session.srv_choice + 1; + local srv_choice = host_session.srv_hosts[host_session.srv_choice]; + connect_host, connect_port = srv_choice.target or to_host, srv_choice.port or connect_port; + host_session.log("info", "Connection failed (%s). Attempt #%d: This time to %s:%d", tostring(err), host_session.srv_choice, connect_host, connect_port); + else + host_session.log("info", "Out of connection options, can't connect to %s", tostring(host_session.to_host)); + -- We're out of options + return false; + end + + if not (connect_host and connect_port) then + -- Likely we couldn't resolve DNS + log("warn", "Hmm, we're without a host (%s) and port (%s) to connect to for %s, giving up :(", tostring(connect_host), tostring(connect_port), tostring(to_host)); + return false; + end + + return s2sout.try_connect(host_session, connect_host, connect_port); +end + +function s2sout.try_next_ip(host_session) + host_session.connecting = nil; + host_session.ip_choice = host_session.ip_choice + 1; + local ip = host_session.ip_hosts[host_session.ip_choice]; + local ok, err= s2sout.make_connect(host_session, ip.ip, ip.port); + if not ok then + if not s2sout.attempt_connection(host_session, err or "closed") then + err = err and (": "..err) or ""; + s2s_destroy_session(host_session, "Connection failed"..err); + end + end +end + +function s2sout.try_connect(host_session, connect_host, connect_port, err) + host_session.connecting = true; + + if not err then + local IPs = {}; + host_session.ip_hosts = IPs; + local handle4, handle6; + local has_other = false; + + handle4 = adns.lookup(function (reply, err) + handle4 = nil; + + -- COMPAT: This is a compromise for all you CNAME-(ab)users :) + if not (reply and reply[#reply] and reply[#reply].a) then + local count = max_dns_depth; + reply = dns.peek(connect_host, "CNAME", "IN"); + while count > 0 and reply and reply[#reply] and not reply[#reply].a and reply[#reply].cname do + log("debug", "Looking up %s (DNS depth is %d)", tostring(reply[#reply].cname), count); + reply = dns.peek(reply[#reply].cname, "A", "IN") or dns.peek(reply[#reply].cname, "CNAME", "IN"); + count = count - 1; + end + end + -- end of CNAME resolving + + if reply and reply[#reply] and reply[#reply].a then + for _, ip in ipairs(reply) do + log("debug", "DNS reply for %s gives us %s", connect_host, ip.a); + IPs[#IPs+1] = new_ip(ip.a, "IPv4"); + end + end + + if has_other then + if #IPs > 0 then + rfc3484_dest(host_session.ip_hosts, sources); + for i = 1, #IPs do + IPs[i] = {ip = IPs[i], port = connect_port}; + end + host_session.ip_choice = 0; + s2sout.try_next_ip(host_session); + else + log("debug", "DNS lookup failed to get a response for %s", connect_host); + host_session.ip_hosts = nil; + if not s2sout.attempt_connection(host_session, "name resolution failed") then -- Retry if we can + log("debug", "No other records to try for %s - destroying", host_session.to_host); + err = err and (": "..err) or ""; + s2s_destroy_session(host_session, "DNS resolution failed"..err); -- End of the line, we can't + end + end + else + has_other = true; + end + end, connect_host, "A", "IN"); + + handle6 = adns.lookup(function (reply, err) + handle6 = nil; + + if reply and reply[#reply] and reply[#reply].aaaa then + for _, ip in ipairs(reply) do + log("debug", "DNS reply for %s gives us %s", connect_host, ip.aaaa); + IPs[#IPs+1] = new_ip(ip.aaaa, "IPv6"); + end + end + + if has_other then + if #IPs > 0 then + rfc3484_dest(host_session.ip_hosts, sources); + for i = 1, #IPs do + IPs[i] = {ip = IPs[i], port = connect_port}; + end + host_session.ip_choice = 0; + s2sout.try_next_ip(host_session); + else + log("debug", "DNS lookup failed to get a response for %s", connect_host); + host_session.ip_hosts = nil; + if not s2sout.attempt_connection(host_session, "name resolution failed") then -- Retry if we can + log("debug", "No other records to try for %s - destroying", host_session.to_host); + err = err and (": "..err) or ""; + s2s_destroy_session(host_session, "DNS resolution failed"..err); -- End of the line, we can't + end + end + else + has_other = true; + end + end, connect_host, "AAAA", "IN"); + + return true; + elseif host_session.ip_hosts and #host_session.ip_hosts > host_session.ip_choice then -- Not our first attempt, and we also have IPs left to try + s2sout.try_next_ip(host_session); + else + host_session.ip_hosts = nil; + if not s2sout.attempt_connection(host_session, "out of IP addresses") then -- Retry if we can + log("debug", "No other records to try for %s - destroying", host_session.to_host); + err = err and (": "..err) or ""; + s2s_destroy_session(host_session, "Connecting failed"..err); -- End of the line, we can't + return false; + end + end + + return true; +end + +function s2sout.make_connect(host_session, connect_host, connect_port) + (host_session.log or log)("info", "Beginning new connection attempt to %s ([%s]:%d)", host_session.to_host, connect_host.addr, connect_port); + -- Ok, we're going to try to connect + + local from_host, to_host = host_session.from_host, host_session.to_host; + + local conn, handler; + if connect_host.proto == "IPv4" then + conn, handler = socket.tcp(); + else + conn, handler = socket.tcp6(); + end + + if not conn then + log("warn", "Failed to create outgoing connection, system error: %s", handler); + return false, handler; + end + + conn:settimeout(0); + local success, err = conn:connect(connect_host.addr, connect_port); + if not success and err ~= "timeout" then + log("warn", "s2s connect() to %s (%s:%d) failed: %s", host_session.to_host, connect_host.addr, connect_port, err); + return false, err; + end + + conn = wrapclient(conn, connect_host.addr, connect_port, s2s_listener, "*a"); + host_session.conn = conn; + + local filter = initialize_filters(host_session); + local w, log = conn.write, host_session.log; + host_session.sends2s = function (t) + log("debug", "sending: %s", (t.top_tag and t:top_tag()) or t:match("^[^>]*>?")); + if t.name then + t = filter("stanzas/out", t); + end + if t then + t = filter("bytes/out", tostring(t)); + if t then + return w(conn, tostring(t)); + end + end + end + + -- Register this outgoing connection so that xmppserver_listener knows about it + -- otherwise it will assume it is a new incoming connection + s2s_listener.register_outgoing(conn, host_session); + + host_session:open_stream(from_host, to_host); + + log("debug", "Connection attempt in progress..."); + return true; +end + +module:hook_global("service-added", function (event) + if event.name ~= "s2s" then return end + + local s2s_sources = portmanager.get_active_services():get("s2s"); + if not s2s_sources then + module:log("warn", "s2s not listening on any ports, outgoing connections may fail"); + return; + end + for source, _ in pairs(s2s_sources) do + if source == "*" or source == "0.0.0.0" then + if not socket.local_addresses then + sources[#sources + 1] = new_ip("0.0.0.0", "IPv4"); + else + for _, addr in ipairs(socket.local_addresses("ipv4", true)) do + sources[#sources + 1] = new_ip(addr, "IPv4"); + end + end + elseif source == "::" then + if not socket.local_addresses then + sources[#sources + 1] = new_ip("::", "IPv6"); + else + for _, addr in ipairs(socket.local_addresses("ipv6", true)) do + sources[#sources + 1] = new_ip(addr, "IPv6"); + end + end + else + sources[#sources + 1] = new_ip(source, (source:find(":") and "IPv6") or "IPv4"); + end + end +end); + +return s2sout; @@ -150,10 +150,14 @@ function sandbox_require() local curr_env_mt = getmetatable(getfenv(2)); local _realG_mt = getmetatable(_realG); if curr_env_mt and curr_env_mt.__index and not curr_env_mt.__newindex and _realG_mt then - local old_newindex + local old_newindex, old_index; old_newindex, _realG_mt.__newindex = _realG_mt.__newindex, curr_env; + old_index, _realG_mt.__index = _realG_mt.__index, function (_G, k) + return rawget(curr_env, k); + end; local ret = _real_require(...); _realG_mt.__newindex = old_newindex; + _realG_mt.__index = old_index; return ret; end return _real_require(...); @@ -254,63 +258,6 @@ function init_global_state() local global_ssl_ctx = certmanager.create_context("*", "server"); prosody.global_ssl_ctx = global_ssl_ctx; - local cl = require "net.connlisteners"; - function prosody.net_activate_ports(option, listener, default, conntype) - conntype = conntype or (global_ssl_ctx and "tls") or "tcp"; - local ports_option = option and option.."_ports" or "ports"; - if not cl.get(listener) then return; end - local ports = config.get("*", "core", ports_option) or default; - if type(ports) == "number" then ports = {ports} end; - - if type(ports) ~= "table" then - log("error", "core."..ports_option.." is not a table"); - else - for _, port in ipairs(ports) do - port = tonumber(port); - if type(port) ~= "number" then - log("error", "Non-numeric "..ports_option..": "..tostring(port)); - else - local ok, errors = cl.start(listener, { - ssl = conntype == "ssl" and global_ssl_ctx, - port = port, - interface = (option and config.get("*", "core", option.."_interface")) - or cl.get(listener).default_interface - or config.get("*", "core", "interface"), - type = conntype - }); - if not ok then - for addr, err in pairs(errors) do - local friendly_message = err; - if err:match(" in use") then - if port == 5222 or port == 5223 or port == 5269 then - friendly_message = "check that Prosody or another XMPP server is " - .."not already running and using this port"; - elseif port == 80 or port == 81 then - friendly_message = "check that a HTTP server is not already using " - .."this port"; - elseif port == 5280 then - friendly_message = "check that Prosody or a BOSH connection manager " - .."is not already running"; - else - friendly_message = "this port is in use by another application"; - end - elseif err:match("permission") then - friendly_message = "Prosody does not have sufficient privileges to use this port"; - elseif err == "no ssl context" then - if not config.get("*", "core", "ssl") then - friendly_message = "there is no 'ssl' config under Host \"*\" which is " - .."require for legacy SSL ports"; - else - friendly_message = "initializing SSL support failed, see previous log entries"; - end - end - log("error", "Failed to open server port %d on %s, %s", port, addr, friendly_message); - end - end - end - end - end - end end function read_version() @@ -333,6 +280,7 @@ function load_secondary_libraries() require "util.xmppstream" require "core.rostermanager" require "core.hostmanager" + require "core.portmanager" require "core.modulemanager" require "core.usermanager" require "core.sessionmanager" @@ -359,9 +307,6 @@ function load_secondary_libraries() if remdebug then remdebug.engine.start() end ]] - require "net.connlisteners"; - require "net.httpserver"; - require "util.stanza" require "util.jid" end @@ -374,20 +319,6 @@ function prepare_to_start() log("info", "Prosody is using the %s backend for connection handling", server.get_backend()); -- Signal to modules that we are ready to start prosody.events.fire_event("server-starting"); - - -- start listening on sockets - if config.get("*", "core", "ports") then - prosody.net_activate_ports(nil, "multiplex", {5222, 5269}); - if config.get("*", "core", "ssl_ports") then - prosody.net_activate_ports("ssl", "multiplex", {5223}, "ssl"); - end - else - prosody.net_activate_ports("c2s", "xmppclient", {5222}); - prosody.net_activate_ports("s2s", "xmppserver", {5269}); - prosody.net_activate_ports("component", "xmppcomponent", {5347}, "tcp"); - prosody.net_activate_ports("legacy_ssl", "xmppclient", {}, "ssl"); - end - prosody.start_time = os.time(); end diff --git a/util/debug.lua b/util/debug.lua index 3736dd34..7caf21ce 100644 --- a/util/debug.lua +++ b/util/debug.lua @@ -22,8 +22,9 @@ do location = _("yellow"); }; end +module("debugx", package.seeall); -local function get_locals_table(level) +function get_locals_table(level) level = level + 1; -- Skip this function itself local locals = {}; for local_num = 1, math.huge do @@ -34,7 +35,7 @@ local function get_locals_table(level) return locals; end -local function get_upvalues_table(func) +function get_upvalues_table(func) local upvalues = {}; if func then for upvalue_num = 1, math.huge do @@ -46,7 +47,7 @@ local function get_upvalues_table(func) return upvalues; end -local function string_from_var_table(var_table, max_line_len, indent_str) +function string_from_var_table(var_table, max_line_len, indent_str) local var_string = {}; local col_pos = 0; max_line_len = max_line_len or math.huge; @@ -103,8 +104,8 @@ function get_traceback_table(thread, start_level) return levels; end -function debug.traceback(...) - local ok, ret = pcall(debug._traceback, ...); +function traceback(...) + local ok, ret = pcall(_traceback, ...); if not ok then return "Error in error handling: "..ret; end @@ -116,7 +117,8 @@ local function build_source_boundary_marker(last_source_desc) return getstring(styles.boundary_padding, "v"..padding).." "..getstring(styles.filename, last_source_desc).." "..getstring(styles.boundary_padding, padding..(#last_source_desc%2==0 and "-v" or "v ")); end -function debug._traceback(thread, message, level) +function _traceback(thread, message, level) + if type(thread) ~= "thread" then thread, message, level = coroutine.running(), thread, message; end @@ -178,3 +180,9 @@ function debug._traceback(thread, message, level) return message.."stack traceback:\n"..table.concat(lines, "\n"); end + +function use() + debug.traceback = traceback; +end + +return _M; diff --git a/util/helpers.lua b/util/helpers.lua index 11356176..ad23dd79 100644 --- a/util/helpers.lua +++ b/util/helpers.lua @@ -6,6 +6,8 @@ -- COPYING file in the source package for more information. -- +local debug = require "util.debug"; + module("helpers", package.seeall); -- Helper functions for debugging @@ -28,7 +30,34 @@ function log_events(events, name, logger) end function revert_log_events(events) - events.fire_event, events[events.fire_event] = events[events.fire_event], nil; -- :) + events.fire_event, events[events.fire_event] = events[events.fire_event], nil; -- :)) +end + +function show_events(events) + local event_handlers = events._handlers; + local events_array = {}; + local event_handler_arrays = {}; + for event in pairs(events._event_map) do + local handlers = event_handlers[event]; + table.insert(events_array, event); + local handler_strings = {}; + for i, handler in ipairs(handlers) do + local upvals = debug.string_from_var_table(debug.get_upvalues_table(handler)); + handler_strings[i] = " "..i..": "..tostring(handler)..(upvals and ("\n "..upvals) or ""); + end + event_handler_arrays[event] = handler_strings; + end + table.sort(events_array); + local i = 1; + repeat + local handlers = event_handler_arrays[events_array[i]]; + for j=#handlers, 1, -1 do + table.insert(events_array, i+1, handlers[j]); + end + if i > 1 then events_array[i] = "\n"..events_array[i]; end + i = i + #handlers + 1 + until i == #events_array; + return table.concat(events_array, "\n"); end function get_upvalue(f, get_name) diff --git a/util/iterators.lua b/util/iterators.lua index aa0b172b..fb89f4a5 100644 --- a/util/iterators.lua +++ b/util/iterators.lua @@ -8,8 +8,10 @@ --[[ Iterators ]]-- +local it = {}; + -- Reverse an iterator -function reverse(f, s, var) +function it.reverse(f, s, var) local results = {}; -- First call the normal iterator @@ -34,12 +36,12 @@ end local function _keys_it(t, key) return (next(t, key)); end -function keys(t) +function it.keys(t) return _keys_it, t; end -- Iterate only over values in a table -function values(t) +function it.values(t) local key, val; return function (t) key, val = next(t, key); @@ -48,7 +50,7 @@ function values(t) end -- Given an iterator, iterate only over unique items -function unique(f, s, var) +function it.unique(f, s, var) local set = {}; return function () @@ -65,7 +67,7 @@ function unique(f, s, var) end --[[ Return the number of items an iterator returns ]]-- -function count(f, s, var) +function it.count(f, s, var) local x = 0; while true do @@ -79,7 +81,7 @@ function count(f, s, var) end -- Return the first n items an iterator returns -function head(n, f, s, var) +function it.head(n, f, s, var) local c = 0; return function (s, var) if c >= n then @@ -91,7 +93,7 @@ function head(n, f, s, var) end -- Skip the first n items an iterator returns -function skip(n, f, s, var) +function it.skip(n, f, s, var) for i=1,n do var = f(s, var); end @@ -99,7 +101,7 @@ function skip(n, f, s, var) end -- Return the last n items an iterator returns -function tail(n, f, s, var) +function it.tail(n, f, s, var) local results, count = {}, 0; while true do local ret = { f(s, var) }; @@ -121,13 +123,13 @@ function tail(n, f, s, var) end local function _range_iter(max, curr) if curr < max then return curr + 1; end end -function range(x, y) +function it.range(x, y) if not y then x, y = 1, x; end -- Default to 1..x if y not given return _range_iter, y, x-1; end -- Convert the values returned by an iterator to an array -function it2array(f, s, var) +function it.to_array(f, s, var) local t, var = {}; while true do var = f(s, var); @@ -139,7 +141,7 @@ end -- Treat the return of an iterator as key,value pairs, -- and build a table -function it2table(f, s, var) +function it.to_table(f, s, var) local t, var2 = {}; while true do var, var2 = f(s, var); @@ -149,3 +151,4 @@ function it2table(f, s, var) return t; end +return it; diff --git a/util/logger.lua b/util/logger.lua index c3bf3992..4fadb4b9 100644 --- a/util/logger.lua +++ b/util/logger.lua @@ -13,8 +13,7 @@ local ipairs, pairs, setmetatable = ipairs, pairs, setmetatable; module "logger" -local name_sinks, level_sinks = {}, {}; -local name_patterns = {}; +local level_sinks = {}; local make_logger; @@ -46,17 +45,7 @@ function make_logger(source_name, level) level_sinks[level] = level_handlers; end - local source_handlers = name_sinks[source_name]; - local logger = function (message, ...) - if source_handlers then - for i = 1,#source_handlers do - if source_handlers[i](source_name, level, message, ...) == false then - return; - end - end - end - for i = 1,#level_handlers do level_handlers[i](source_name, level, message, ...); end @@ -66,14 +55,12 @@ function make_logger(source_name, level) end function reset() - for k in pairs(name_sinks) do name_sinks[k] = nil; end for level, handler_list in pairs(level_sinks) do -- Clear all handlers for this level for i = 1, #handler_list do handler_list[i] = nil; end end - for k in pairs(name_patterns) do name_patterns[k] = nil; end end function add_level_sink(level, sink_function) @@ -84,22 +71,6 @@ function add_level_sink(level, sink_function) end end -function add_name_sink(name, sink_function, exclusive) - if not name_sinks[name] then - name_sinks[name] = { sink_function }; - else - name_sinks[name][#name_sinks[name] + 1] = sink_function; - end -end - -function add_name_pattern_sink(name_pattern, sink_function, exclusive) - if not name_patterns[name_pattern] then - name_patterns[name_pattern] = { sink_function }; - else - name_patterns[name_pattern][#name_patterns[name_pattern] + 1] = sink_function; - end -end - _M.new = make_logger; return _M; diff --git a/util/set.lua b/util/set.lua index e4cc2dff..050446ec 100644 --- a/util/set.lua +++ b/util/set.lua @@ -82,8 +82,10 @@ function new(list) end function set:add_list(list) - for _, item in ipairs(list) do - items[item] = true; + if list then + for _, item in ipairs(list) do + items[item] = true; + end end end |