diff options
Diffstat (limited to 'util')
-rw-r--r-- | util/array.lua | 49 | ||||
-rw-r--r-- | util/datamanager.lua | 6 | ||||
-rw-r--r-- | util/debug.lua | 1 | ||||
-rw-r--r-- | util/dependencies.lua | 8 | ||||
-rw-r--r-- | util/ip.lua | 176 | ||||
-rw-r--r-- | util/iterators.lua | 2 | ||||
-rw-r--r-- | util/prosodyctl.lua | 15 | ||||
-rw-r--r-- | util/rfc3484.lua | 133 | ||||
-rw-r--r-- | util/stanza.lua | 5 | ||||
-rw-r--r-- | util/template.lua | 16 | ||||
-rw-r--r-- | util/x509.lua | 109 | ||||
-rw-r--r-- | util/xmppstream.lua | 48 |
12 files changed, 513 insertions, 55 deletions
diff --git a/util/array.lua b/util/array.lua index 5dbd3037..5dc604ba 100644 --- a/util/array.lua +++ b/util/array.lua @@ -9,6 +9,11 @@ local t_insert, t_sort, t_remove, t_concat = table.insert, table.sort, table.remove, table.concat; +local setmetatable = setmetatable; +local math_random = math.random; +local pairs, ipairs = pairs, ipairs; +local tostring = tostring; + local array = {}; local array_base = {}; local array_methods = {}; @@ -25,6 +30,15 @@ end setmetatable(array, { __call = new_array }); +-- Read-only methods +function array_methods:random() + return self[math_random(1,#self)]; +end + +-- These methods can be called two ways: +-- array.method(existing_array, [params [, ...]]) -- Create new array for result +-- existing_array:method([params, ...]) -- Transform existing array into result +-- function array_base.map(outa, ina, func) for k,v in ipairs(ina) do outa[k] = func(v); @@ -60,15 +74,18 @@ function array_base.sort(outa, ina, ...) return outa; end ---- These methods only mutate -function array_methods:random() - return self[math.random(1,#self)]; +function array_base.pluck(outa, ina, key) + for i=1,#ina do + outa[i] = ina[i][key]; + end + return outa; end +--- These methods only mutate the array function array_methods:shuffle(outa, ina) local len = #self; for i=1,#self do - local r = math.random(i,len); + local r = math_random(i,len); self[i], self[r] = self[r], self[i]; end return self; @@ -91,10 +108,24 @@ function array_methods:append(array) return self; end -array_methods.push = table.insert; -array_methods.pop = table.remove; -array_methods.concat = table.concat; -array_methods.length = function (t) return #t; end +function array_methods:push(x) + t_insert(self, x); + return self; +end + +function array_methods:pop(x) + local v = self[x]; + t_remove(self, x); + return v; +end + +function array_methods:concat(sep) + return t_concat(array.map(self, tostring), sep); +end + +function array_methods:length() + return #self; +end --- These methods always create a new array function array.collect(f, s, var) @@ -102,7 +133,7 @@ function array.collect(f, s, var) while true do var = f(s, var); if var == nil then break; end - table.insert(t, var); + t_insert(t, var); end return setmetatable(t, array_mt); end diff --git a/util/datamanager.lua b/util/datamanager.lua index d5e9c88c..a5d676cc 100644 --- a/util/datamanager.lua +++ b/util/datamanager.lua @@ -1,7 +1,7 @@ -- 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. -- @@ -20,7 +20,7 @@ local error = error; local next = next; local t_insert = table.insert; local append = require "util.serialization".append; -local path_separator = "/"; if os.getenv("WINDIR") then path_separator = "\\" end +local path_separator = assert ( package.config:match ( "^([^\n]+)" ) , "package.config not in standard form" ) -- Extract directory seperator from package.config (an undocumented string that comes with lua) local lfs = require "lfs"; local prosody = prosody; local raw_mkdir; @@ -72,7 +72,7 @@ local function callback(username, host, datastore, data) username, host, datastore, data = f(username, host, datastore, data); if username == false then break; end end - + return username, host, datastore, data; end function add_callback(func) diff --git a/util/debug.lua b/util/debug.lua index 22d02bf2..2170a6d1 100644 --- a/util/debug.lua +++ b/util/debug.lua @@ -9,6 +9,7 @@ local censored_names = { }; local function get_locals_table(level) + level = level + 1; -- Skip this function itself local locals = {}; for local_num = 1, math.huge do local name, value = debug.getlocal(level, local_num); diff --git a/util/dependencies.lua b/util/dependencies.lua index 5baea942..53d2719d 100644 --- a/util/dependencies.lua +++ b/util/dependencies.lua @@ -136,6 +136,14 @@ function log_warnings() log("error", "This version of LuaSec contains a known bug that causes disconnects, see http://prosody.im/doc/depends"); end end + if lxp then + if not pcall(lxp.new, { StartDoctypeDecl = false }) then + log("error", "The version of LuaExpat on your system leaves Prosody " + .."vulnerable to denial-of-service attacks. You should upgrade to " + .."LuaExpat 1.1.1 or higher as soon as possible. See " + .."http://prosody.im/doc/depends#luaexpat for more information."); + end + end end return _M; diff --git a/util/ip.lua b/util/ip.lua new file mode 100644 index 00000000..2f09c034 --- /dev/null +++ b/util/ip.lua @@ -0,0 +1,176 @@ +-- Prosody IM +-- Copyright (C) 2008-2011 Florian Zeitz +-- +-- This project is MIT/X11 licensed. Please see the +-- COPYING file in the source package for more information. +-- + +local ip_methods = {}; +local ip_mt = { __index = function (ip, key) return (ip_methods[key])(ip); end, + __tostring = function (ip) return ip.addr; end, + __eq = function (ipA, ipB) return ipA.addr == ipB.addr; end}; +local hex2bits = { ["0"] = "0000", ["1"] = "0001", ["2"] = "0010", ["3"] = "0011", ["4"] = "0100", ["5"] = "0101", ["6"] = "0110", ["7"] = "0111", ["8"] = "1000", ["9"] = "1001", ["A"] = "1010", ["B"] = "1011", ["C"] = "1100", ["D"] = "1101", ["E"] = "1110", ["F"] = "1111" }; + +local function new_ip(ipStr, proto) + if proto ~= "IPv4" and proto ~= "IPv6" then + return nil, "invalid protocol"; + end + + return setmetatable({ addr = ipStr, proto = proto }, ip_mt); +end + +local function toBits(ip) + local result = ""; + local fields = {}; + if ip.proto == "IPv4" then + ip = ip.toV4mapped; + end + ip = (ip.addr):upper(); + ip:gsub("([^:]*):?", function (c) fields[#fields + 1] = c end); + if not ip:match(":$") then fields[#fields] = nil; end + for i, field in ipairs(fields) do + if field:len() == 0 and i ~= 1 and i ~= #fields then + for i = 1, 16 * (9 - #fields) do + result = result .. "0"; + end + else + for i = 1, 4 - field:len() do + result = result .. "0000"; + end + for i = 1, field:len() do + result = result .. hex2bits[field:sub(i,i)]; + end + end + end + return result; +end + +local function commonPrefixLength(ipA, ipB) + ipA, ipB = toBits(ipA), toBits(ipB); + for i = 1, 128 do + if ipA:sub(i,i) ~= ipB:sub(i,i) then + return i-1; + end + end + return 128; +end + +local function v4scope(ip) + local fields = {}; + ip:gsub("([^.]*).?", function (c) fields[#fields + 1] = tonumber(c) end); + -- Loopback: + if fields[1] == 127 then + return 0x2; + -- Link-local unicast: + elseif fields[1] == 169 and fields[2] == 254 then + return 0x2; + -- Site-local unicast: + elseif (fields[1] == 10) or (fields[1] == 192 and fields[2] == 168) or (fields[1] == 172 and (fields[2] >= 16 and fields[2] < 32)) then + return 0x5; + -- Global unicast: + else + return 0xE; + end +end + +local function v6scope(ip) + -- Loopback: + if ip:match("^[0:]*1$") then + return 0x2; + -- Link-local unicast: + elseif ip:match("^[Ff][Ee][89ABab]") then + return 0x2; + -- Site-local unicast: + elseif ip:match("^[Ff][Ee][CcDdEeFf]") then + return 0x5; + -- Multicast: + elseif ip:match("^[Ff][Ff]") then + return tonumber("0x"..ip:sub(4,4)); + -- Global unicast: + else + return 0xE; + end +end + +local function label(ip) + if commonPrefixLength(ip, new_ip("::1", "IPv6")) == 128 then + return 0; + elseif commonPrefixLength(ip, new_ip("2002::", "IPv6")) >= 16 then + return 2; + elseif commonPrefixLength(ip, new_ip("::", "IPv6")) >= 96 then + return 3; + elseif commonPrefixLength(ip, new_ip("::ffff:0:0", "IPv6")) >= 96 then + return 4; + else + return 1; + end +end + +local function precedence(ip) + if commonPrefixLength(ip, new_ip("::1", "IPv6")) == 128 then + return 50; + elseif commonPrefixLength(ip, new_ip("2002::", "IPv6")) >= 16 then + return 30; + elseif commonPrefixLength(ip, new_ip("::", "IPv6")) >= 96 then + return 20; + elseif commonPrefixLength(ip, new_ip("::ffff:0:0", "IPv6")) >= 96 then + return 10; + else + return 40; + end +end + +local function toV4mapped(ip) + local fields = {}; + local ret = "::ffff:"; + ip:gsub("([^.]*).?", function (c) fields[#fields + 1] = tonumber(c) end); + ret = ret .. ("%02x"):format(fields[1]); + ret = ret .. ("%02x"):format(fields[2]); + ret = ret .. ":" + ret = ret .. ("%02x"):format(fields[3]); + ret = ret .. ("%02x"):format(fields[4]); + return new_ip(ret, "IPv6"); +end + +function ip_methods:toV4mapped() + if self.proto ~= "IPv4" then return nil, "No IPv4 address" end + local value = toV4mapped(self.addr); + self.toV4mapped = value; + return value; +end + +function ip_methods:label() + local value; + if self.proto == "IPv4" then + value = label(self.toV4mapped); + else + value = label(self); + end + self.label = value; + return value; +end + +function ip_methods:precedence() + local value; + if self.proto == "IPv4" then + value = precedence(self.toV4mapped); + else + value = precedence(self); + end + self.precedence = value; + return value; +end + +function ip_methods:scope() + local value; + if self.proto == "IPv4" then + value = v4scope(self.addr); + else + value = v6scope(self.addr); + end + self.scope = value; + return value; +end + +return {new_ip = new_ip, + commonPrefixLength = commonPrefixLength}; diff --git a/util/iterators.lua b/util/iterators.lua index 2a87e97a..aa0b172b 100644 --- a/util/iterators.lua +++ b/util/iterators.lua @@ -140,7 +140,7 @@ end -- Treat the return of an iterator as key,value pairs, -- and build a table function it2table(f, s, var) - local t, var = {}; + local t, var2 = {}; while true do var, var2 = f(s, var); if var == nil then break; end diff --git a/util/prosodyctl.lua b/util/prosodyctl.lua index 6e9eed4e..128eec2c 100644 --- a/util/prosodyctl.lua +++ b/util/prosodyctl.lua @@ -16,6 +16,7 @@ local signal = require "util.signal"; local set = require "util.set"; local lfs = require "lfs"; local pcall = pcall; +local type = type; local nodeprep, nameprep = stringprep.nodeprep, stringprep.nameprep; @@ -63,6 +64,13 @@ function getchar(n) end end +function getline() + local ok, line = pcall(io.read, "*l"); + if ok then + return line; + end +end + function getpass() local stty_ret = os.execute("stty -echo 2>/dev/null"); if stty_ret ~= 0 then @@ -112,6 +120,13 @@ function read_password() return password; end +function show_prompt(prompt) + io.write(prompt, " "); + local line = getline(); + line = line and line:gsub("\n$",""); + return (line and #line > 0) and line or nil; +end + -- Server control function adduser(params) local user, host, password = nodeprep(params.user), nameprep(params.host), params.password; diff --git a/util/rfc3484.lua b/util/rfc3484.lua new file mode 100644 index 00000000..dd855a84 --- /dev/null +++ b/util/rfc3484.lua @@ -0,0 +1,133 @@ +-- Prosody IM +-- Copyright (C) 2008-2011 Florian Zeitz +-- +-- This project is MIT/X11 licensed. Please see the +-- COPYING file in the source package for more information. +-- + +local commonPrefixLength = require"util.ip".commonPrefixLength +local new_ip = require"util.ip".new_ip; + +local function t_sort(t, comp) + for i = 1, (#t - 1) do + for j = (i + 1), #t do + local a, b = t[i], t[j]; + if not comp(a,b) then + t[i], t[j] = b, a; + end + end + end +end + +function source(dest, candidates) + local function comp(ipA, ipB) + -- Rule 1: Prefer same address + if dest == ipA then + return true; + elseif dest == ipB then + return false; + end + + -- Rule 2: Prefer appropriate scope + if ipA.scope < ipB.scope then + if ipA.scope < dest.scope then + return false; + else + return true; + end + elseif ipA.scope > ipB.scope then + if ipB.scope < dest.scope then + return true; + else + return false; + end + end + + -- Rule 3: Avoid deprecated addresses + -- XXX: No way to determine this + -- Rule 4: Prefer home addresses + -- XXX: Mobility Address related, no way to determine this + -- Rule 5: Prefer outgoing interface + -- XXX: Interface to address relation. No way to determine this + -- Rule 6: Prefer matching label + if ipA.label == dest.label and ipB.label ~= dest.label then + return true; + elseif ipB.label == dest.label and ipA.label ~= dest.label then + return false; + end + + -- Rule 7: Prefer public addresses (over temporary ones) + -- XXX: No way to determine this + -- Rule 8: Use longest matching prefix + if commonPrefixLength(ipA, dest) > commonPrefixLength(ipB, dest) then + return true; + else + return false; + end + end + + t_sort(candidates, comp); + return candidates[1]; +end + +function destination(candidates, sources) + local sourceAddrs = {}; + local function comp(ipA, ipB) + local ipAsource = sourceAddrs[ipA]; + local ipBsource = sourceAddrs[ipB]; + -- Rule 1: Avoid unusable destinations + -- XXX: No such information + -- Rule 2: Prefer matching scope + if ipA.scope == ipAsource.scope and ipB.scope ~= ipBsource.scope then + return true; + elseif ipA.scope ~= ipAsource.scope and ipB.scope == ipBsource.scope then + return false; + end + + -- Rule 3: Avoid deprecated addresses + -- XXX: No way to determine this + -- Rule 4: Prefer home addresses + -- XXX: Mobility Address related, no way to determine this + -- Rule 5: Prefer matching label + if ipAsource.label == ipA.label and ipBsource.label ~= ipB.label then + return true; + elseif ipBsource.label == ipB.label and ipAsource.label ~= ipA.label then + return false; + end + + -- Rule 6: Prefer higher precedence + if ipA.precedence > ipB.precedence then + return true; + elseif ipA.precedence < ipB.precedence then + return false; + end + + -- Rule 7: Prefer native transport + -- XXX: No way to determine this + -- Rule 8: Prefer smaller scope + if ipA.scope < ipB.scope then + return true; + elseif ipA.scope > ipB.scope then + return false; + end + + -- Rule 9: Use longest matching prefix + if commonPrefixLength(ipA, ipAsource) > commonPrefixLength(ipB, ipBsource) then + return true; + elseif commonPrefixLength(ipA, ipAsource) < commonPrefixLength(ipB, ipBsource) then + return false; + end + + -- Rule 10: Otherwise, leave order unchanged + return true; + end + for _, ip in ipairs(candidates) do + sourceAddrs[ip] = source(ip, sources); + end + + t_sort(candidates, comp); + return candidates; +end + +return {source = source, + destination = destination}; diff --git a/util/stanza.lua b/util/stanza.lua index de83977f..600212a4 100644 --- a/util/stanza.lua +++ b/util/stanza.lua @@ -258,11 +258,6 @@ function stanza_mt.get_error(stanza) return type, condition or "undefined-condition", text; end -function stanza_mt.__add(s1, s2) - return s1:add_direct_child(s2); -end - - do local id = 0; function new_id() diff --git a/util/template.lua b/util/template.lua index ebd8be14..5e9b479e 100644 --- a/util/template.lua +++ b/util/template.lua @@ -7,6 +7,7 @@ local ipairs = ipairs; local error = error; local loadstring = loadstring; local debug = debug; +local t_remove = table.remove; module("template") @@ -42,7 +43,6 @@ local parse_xml = (function() stanza:tag(name, attr); end function handler:CharacterData(data) - data = data:gsub("^%s*", ""):gsub("%s*$", ""); stanza:text(data); end function handler:EndElement(tagname) @@ -60,6 +60,19 @@ local parse_xml = (function() end; end)(); +local function trim_xml(stanza) + for i=#stanza,1,-1 do + local child = stanza[i]; + if child.name then + trim_xml(child); + else + child = child:gsub("^%s*", ""):gsub("%s*$", ""); + stanza[i] = child; + if child == "" then t_remove(stanza, i); end + end + end +end + local function create_string_string(str) str = ("%q"):format(str); str = str:gsub("{([^}]*)}", function(s) @@ -118,6 +131,7 @@ local template_mt = { __tostring = function(t) return t.name end }; local function create_template(templates, text) local stanza, err = parse_xml(text); if not stanza then error(err); end + trim_xml(stanza); local info = debug.getinfo(3, "Sl"); info = info and ("template(%s:%d)"):format(info.short_src:match("[^\\/]*$"), info.currentline) or "template(unknown)"; diff --git a/util/x509.lua b/util/x509.lua index d3c55bb4..f106e6fa 100644 --- a/util/x509.lua +++ b/util/x509.lua @@ -21,6 +21,10 @@ local nameprep = require "util.encodings".stringprep.nameprep; local idna_to_ascii = require "util.encodings".idna.to_ascii; local log = require "util.logger".init("x509"); +local pairs, ipairs = pairs, ipairs; +local s_format = string.format; +local t_insert = table.insert; +local t_concat = table.concat; module "x509" @@ -208,4 +212,109 @@ function verify_identity(host, service, cert) return false end +-- TODO Rename? Split out subroutines? +-- Also, this is probably openssl specific, what TODO about that? +function genx509san(hosts, config, certhosts, raw) -- recive config through that or some better way? + local function utf8string(s) + -- This is how we tell openssl not to encode UTF-8 strings as Latin1 + return s_format("FORMAT:UTF8,UTF8:%s", s); + end + + local function ia5string(s) + return s_format("IA5STRING:%s", s); + end + + local function dnsname(t, host) + t_insert(t.DNS, idna_to_ascii(host)); + end + + local function srvname(t, host, service) + t_insert(t.otherName, s_format("%s;%s", oid_dnssrv, ia5string("_" .. service .."." .. idna_to_ascii(host)))); + end + + local function xmppAddr(t, host) + t_insert(t.otherName, s_format("%s;%s", oid_xmppaddr, utf8string(host))); + end + + ----------------------------- + + local san = { + DNS = {}; + otherName = {}; + }; + + local sslsanconf = { }; + + for i = 1,#certhosts do + local certhost = certhosts[i]; + for name, host in pairs(hosts) do + if name == certhost or name:sub(-1-#certhost) == "."..certhost then + dnsname(san, name); + --print(name .. "#component_module: " .. (config.get(name, "core", "component_module") or "nil")); + if config.get(name, "core", "component_module") == nil then + srvname(san, name, "xmpp-client"); + end + --print(name .. "#anonymous_login: " .. tostring(config.get(name, "core", "anonymous_login"))); + if not (config.get(name, "core", "anonymous_login") or + config.get(name, "core", "authentication") == "anonymous") then + srvname(san, name, "xmpp-server"); + end + xmppAddr(san, name); + end + end + end + + for t, n in pairs(san) do + for i = 1,#n do + t_insert(sslsanconf, s_format("%s.%d = %s", t, i -1, n[i])); + end + end + + return raw and sslsanconf or t_concat(sslsanconf, "\n"); +end + +function baseconf() + return { + req = { + distinguished_name = "distinguished_name", + req_extensions = "v3_extensions", + x509_extensions = "v3_extensions", + prompt = "no", + }, + distinguished_name = { + commonName = "example.com", + countryName = "GB", + localityName = "The Internet", + organizationName = "Your Organisation", + organizationalUnitName = "XMPP Department", + emailAddress = "xmpp@example.com", + }, + v3_extensions = { + basicConstraints = "CA:FALSE", + keyUsage = "digitalSignature,keyEncipherment", + extendedKeyUsage = "serverAuth,clientAuth", + subjectAltName = "@subject_alternative_name", + }, + subject_alternative_name = { }, + } +end + +function serialize_conf(conf) + local s = ""; + for k, t in pairs(conf) do + s = s .. ("[%s]\n"):format(k); + if t[1] then + for i, v in ipairs(t) do + s = s .. ("%s\n"):format(v); + end + else + for k, v in pairs(t) do + s = s .. ("%s = %s\n"):format(k, v); + end + end + s = s .. "\n"; + end + return s; +end + return _M; diff --git a/util/xmppstream.lua b/util/xmppstream.lua index e5271b72..f1793b4f 100644 --- a/util/xmppstream.lua +++ b/util/xmppstream.lua @@ -11,32 +11,25 @@ local lxp = require "lxp"; local st = require "util.stanza"; local stanza_mt = st.stanza_mt; +local error = error; local tostring = tostring; local t_insert = table.insert; local t_concat = table.concat; local t_remove = table.remove; local setmetatable = setmetatable; -local default_log = require "util.logger".init("xmppstream"); - -- COMPAT: w/LuaExpat 1.1.0 local lxp_supports_doctype = pcall(lxp.new, { StartDoctypeDecl = false }); -if not lxp_supports_doctype then - default_log("warn", "The version of LuaExpat on your system leaves Prosody " - .."vulnerable to denial-of-service attacks. You should upgrade to " - .."LuaExpat 1.1.1 or higher as soon as possible. See " - .."http://prosody.im/doc/depends#luaexpat for more information."); -end - -local error = error; - module "xmppstream" local new_parser = lxp.new; -local ns_prefixes = { - ["http://www.w3.org/XML/1998/namespace"] = "xml"; +local xml_namespace = { + ["http://www.w3.org/XML/1998/namespace\1lang"] = "xml:lang"; + ["http://www.w3.org/XML/1998/namespace\1space"] = "xml:space"; + ["http://www.w3.org/XML/1998/namespace\1base"] = "xml:base"; + ["http://www.w3.org/XML/1998/namespace\1id"] = "xml:id"; }; local xmlns_streams = "http://etherx.jabber.org/streams"; @@ -50,8 +43,6 @@ _M.ns_pattern = ns_pattern; function new_sax_handlers(session, stream_callbacks) local xml_handlers = {}; - local log = session.log or default_log; - local cb_streamopened = stream_callbacks.streamopened; local cb_streamclosed = stream_callbacks.streamclosed; local cb_error = stream_callbacks.error or function(session, e) error("XML stream error: "..tostring(e)); end; @@ -85,17 +76,13 @@ function new_sax_handlers(session, stream_callbacks) non_streamns_depth = non_streamns_depth + 1; end - -- FIXME !!!!! for i=1,#attr do local k = attr[i]; attr[i] = nil; - local ns, nm = k:match(ns_pattern); - if nm ~= "" then - ns = ns_prefixes[ns]; - if ns then - attr[ns..":"..nm] = attr[k]; - attr[k] = nil; - end + local xmlk = xml_namespace[k]; + if xmlk then + attr[xmlk] = attr[k]; + attr[k] = nil; end end @@ -152,19 +139,9 @@ function new_sax_handlers(session, stream_callbacks) stanza = t_remove(stack); end else - if tagname == stream_tag then - if cb_streamclosed then - cb_streamclosed(session); - end - else - local curr_ns,name = tagname:match(ns_pattern); - if name == "" then - curr_ns, name = "", curr_ns; - end - cb_error(session, "parse-error", "unexpected-element-close", name); + if cb_streamclosed then + cb_streamclosed(session); end - stanza, chardata = nil, {}; - stack = {}; end end @@ -188,7 +165,6 @@ function new_sax_handlers(session, stream_callbacks) local function set_session(stream, new_session) session = new_session; - log = new_session.log or default_log; end return xml_handlers, { reset = reset, set_session = set_session }; |