prosody-modules: mod_dnsupdate/mod_dnsupdate.lua annotate

annotate mod_dnsupdate/mod_dnsupdate.lua @ 4771:e227af629736

mod_smacks: Send <r> immediately from csi-flushing event Using a timer serves no purpose in this case, only serves to increase the number of write syscalls and TCP segments sent.

author	Kim Alvefur <zash@zash.se>
date	Tue, 16 Nov 2021 13:39:49 +0100
parents	3632836f35b0
children	6395d4732bc6

rev	line source
4762 ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	1 module:set_global();
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	2
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	3 local config = require "core.configmanager";
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	4 local argparse = require "util.argparse";
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	5 local dns = require"net.adns".resolver();
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	6 local async = require "util.async";
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	7 local set = require "util.set";
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	8 local nameprep = require"util.encodings".stringprep.nameprep;
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	9 local idna_to_ascii = require"util.encodings".idna.to_ascii;
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	10
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	11 local services = { "xmpp-client"; "xmpps-client"; "xmpp-server"; "xmpps-server" }
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	12
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	13 local function validate_dnsname_option(options, option_name, default)
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	14 local host = options[option_name];
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	15 if host == nil then return default end
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	16 local normalized = nameprep(host);
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	17 if not normalized then
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	18 module:log("error", "--%s %q fails normalization");
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	19 return;
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	20 end
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	21 local alabel = idna_to_ascii(normalized);
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	22 if not alabel then
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	23 module:log("error", "--%s %q fails IDNA");
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	24 return;
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	25 end
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	26 return alabel;
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	27 end
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	28
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	29 function module.command(arg)
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	30 local opts = argparse.parse(arg, {
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	31 short_params = { d = "domain"; p = "primary"; t = "target"; l = "ttl"; h = "help"; ["?"] = "help" };
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	32 value_params = { domain = true; primary = true; target = true; ttl = true };
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	33 });
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	34
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	35 if not arg[1] or arg[2] or not opts or opts.help or not opts.domain then
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	36 local out = opts.help and io.stdout or io.stderr;
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	37 out:write("prosodyctl mod_dnsupdate [options] virtualhost\n");
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	38 out:write("\t-d --domain\tbase domain name required\n");
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	39 out:write("\t-p --primary\tprimary DNS name server\n");
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	40 out:write("\t-t --target\ttarget hostname for SRV\n");
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	41 out:write("\t-l --ttl\tTTL to use\n");
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	42 out:write("\t--each\tremove and replace individual SRV records\n");
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	43 out:write("\t--reset\tremove and replace all SRV records\n");
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	44 return opts and opts.help and 0 or 1;
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	45 end
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	46
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	47 local vhost = nameprep(arg[1]); -- TODO loop over arg[]?
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	48 if not vhost then
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	49 module:log("error", "Host %q fails normalization", arg[1]);
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	50 return 1;
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	51 end
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	52 local ihost = idna_to_ascii(vhost);
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	53 if not ihost then
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	54 module:log("error", "Host %q falis IDNA", vhost);
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	55 return 1;
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	56 end
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	57 if not config.get(vhost, "defined") then
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	58 module:log("error", "Host %q is not defined in the config", vhost);
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	59 return 1;
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	60 end
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	61
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	62 local domain = validate_dnsname_option(opts, "domain");
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	63 if not domain then
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	64 module:log("error", "--domain is required");
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	65 return 1;
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	66 end
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	67 local primary = validate_dnsname_option(opts, "primary")
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	68 or async.wait_for(dns:lookup_promise(domain, "SOA"):next(function(ret) return ret[1].soa.mname; end));
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	69 if not primary then
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	70 module:log("error", "Could not discover primary name server, specify it with --primary");
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	71 return 1;
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	72 end
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	73 local target = validate_dnsname_option(opts, "target", module:context(vhost):get_option_string("xmpp_host", ihost));
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	74 -- TODO validate that target has A/AAAA
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	75
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	76 local configured_ports = {
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	77 ["xmpp-client"] = module:get_option_array("c2s_ports", { 5222 });
4763 91077c928c57 mod_dnsupdate: Fix to use correct port settings Kim Alvefur <zash@zash.se> parents: 4762 diff changeset	78 ["xmpp-server"] = module:get_option_array("s2s_ports", { 5269 });
4762 ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	79 ["xmpps-client"] = module:get_option_array("c2s_direct_tls_ports", {});
4763 91077c928c57 mod_dnsupdate: Fix to use correct port settings Kim Alvefur <zash@zash.se> parents: 4762 diff changeset	80 ["xmpps-server"] = module:get_option_array("s2s_direct_tls_ports", {});
4762 ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	81 };
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	82
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	83 if opts.multiplex then
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	84 for opt, ports in pairs(configured_ports) do
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	85 ports:append(module:get_option_array(opt:sub(1, 5) == "xmpps" and "ssl_ports" or "ports", {}));
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	86 end
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	87 end
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	88
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	89 local existing_srv = {};
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	90 for _, service in ipairs(services) do
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	91 existing_srv[service] = dns:lookup_promise(("_%s._tcp.%s"):format(service, ihost), "SRV");
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	92 end
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	93
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	94 print("zone", domain);
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	95 print("server", primary);
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	96 print("ttl " .. tostring(opts.ttl or 60 * 60));
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	97
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	98 for _, service in ipairs(services) do
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	99 local ports = set.new(configured_ports[service]);
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	100 local records = (async.wait_for(existing_srv[service]));
4764 a754f7e380b2 mod_dnsupdate: Rewrite port config vs DNS comparison code Kim Alvefur <zash@zash.se> parents: 4763 diff changeset	101 if opts.reset then
a754f7e380b2 mod_dnsupdate: Rewrite port config vs DNS comparison code Kim Alvefur <zash@zash.se> parents: 4763 diff changeset	102 print(("del _%s._tcp.%s IN SRV"):format(service, ihost));
a754f7e380b2 mod_dnsupdate: Rewrite port config vs DNS comparison code Kim Alvefur <zash@zash.se> parents: 4763 diff changeset	103 else
a754f7e380b2 mod_dnsupdate: Rewrite port config vs DNS comparison code Kim Alvefur <zash@zash.se> parents: 4763 diff changeset	104 for _, rr in ipairs(records) do
a754f7e380b2 mod_dnsupdate: Rewrite port config vs DNS comparison code Kim Alvefur <zash@zash.se> parents: 4763 diff changeset	105 if ports:contains(rr.srv.port) and target == nameprep(rr.srv.target):gsub("%.$", "") then
a754f7e380b2 mod_dnsupdate: Rewrite port config vs DNS comparison code Kim Alvefur <zash@zash.se> parents: 4763 diff changeset	106 ports:remove(rr.srv.port)
4765 3632836f35b0 mod_dnsupdate: Restore the --each option Kim Alvefur <zash@zash.se> parents: 4764 diff changeset	107 elseif not opts.each then
3632836f35b0 mod_dnsupdate: Restore the --each option Kim Alvefur <zash@zash.se> parents: 4764 diff changeset	108 print(("del _%s._tcp.%s IN SRV"):format(service, ihost));
3632836f35b0 mod_dnsupdate: Restore the --each option Kim Alvefur <zash@zash.se> parents: 4764 diff changeset	109 break
4764 a754f7e380b2 mod_dnsupdate: Rewrite port config vs DNS comparison code Kim Alvefur <zash@zash.se> parents: 4763 diff changeset	110 else
a754f7e380b2 mod_dnsupdate: Rewrite port config vs DNS comparison code Kim Alvefur <zash@zash.se> parents: 4763 diff changeset	111 print(("del _%s._tcp.%s IN SRV %s"):format(service, ihost, rr));
4762 ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	112 end
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	113 end
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	114 end
4764 a754f7e380b2 mod_dnsupdate: Rewrite port config vs DNS comparison code Kim Alvefur <zash@zash.se> parents: 4763 diff changeset	115 for port in ports do print(("add _%s._tcp.%s IN SRV 1 1 %d %s"):format(service, ihost, port, target)); end
4762 ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	116 end
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	117
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	118 print("show");
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	119 print("send");
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	120 print("answer");
ba312cd7907f mod_dnsupdate: Use with nsupdate to update DNS records from config Kim Alvefur <zash@zash.se> parents: diff changeset	121 end

Mercurial > prosody-modules

annotate mod_dnsupdate/mod_dnsupdate.lua @ 4771:e227af629736