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comparison mod_dnsupdate/mod_dnsupdate.lua @ 6413:0703ef9f8db8

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mod_dnsupdate: Support multiple hosts/components
author Kim Alvefur <zash@zash.se>
date Mon, 23 Feb 2026 16:22:33 +0100
parents 3ae0d518b739
children
comparison
equal deleted inserted replaced
6412:c25b98d42ed0 6413:0703ef9f8db8
31 local opts = argparse.parse(arg, { 31 local opts = argparse.parse(arg, {
32 short_params = { d = "domain"; p = "primary"; t = "target"; l = "ttl"; h = "help"; ["?"] = "help" }; 32 short_params = { d = "domain"; p = "primary"; t = "target"; l = "ttl"; h = "help"; ["?"] = "help" };
33 value_params = { domain = true; primary = true; target = true; ttl = true }; 33 value_params = { domain = true; primary = true; target = true; ttl = true };
34 }); 34 });
35 35
36 if not arg[1] or arg[2] or not opts or opts.help or not opts.domain then 36 if not arg[1] or not opts or opts.help or not opts.domain then
37 local out = opts.help and io.stdout or io.stderr; 37 local out = opts.help and io.stdout or io.stderr;
38 out:write("prosodyctl mod_dnsupdate [options] virtualhost\n"); 38 out:write("prosodyctl mod_dnsupdate [options] virtualhost\n");
39 out:write("\t-d --domain\tbase domain name *required*\n"); 39 out:write("\t-d --domain\tbase domain name *required*\n");
40 out:write("\t-p --primary\tprimary DNS name server\n"); 40 out:write("\t-p --primary\tprimary DNS name server\n");
41 out:write("\t-t --target\ttarget hostname for SRV\n"); 41 out:write("\t-t --target\ttarget hostname for SRV\n");
42 out:write("\t-l --ttl\tTTL to use\n"); 42 out:write("\t-l --ttl\tTTL to use\n");
43 out:write("\t--each\tremove and replace individual SRV records\n"); 43 out:write("\t--each\tremove and replace individual SRV records\n");
44 out:write("\t--reset\tremove and replace all SRV records\n"); 44 out:write("\t--reset\tremove and replace all SRV records\n");
45 out:write("\t--remove\tremove all SRV records\n"); 45 out:write("\t--remove\tremove all SRV records\n");
46 return opts and opts.help and 0 or 1; 46 return opts and opts.help and 0 or 1;
47 end
48
49 local vhost = nameprep(arg[1]); -- TODO loop over arg[]?
50 if not vhost then
51 module:log("error", "Host %q fails normalization", arg[1]);
52 return 1;
53 end
54 local ihost = idna_to_ascii(vhost);
55 if not ihost then
56 module:log("error", "Host %q fails IDNA", vhost);
57 return 1;
58 end
59 if not config.get(vhost, "component_module") and not config.get(vhost, "defined") then
60 module:log("error", "Host %q is not defined in the config", vhost);
61 return 1;
62 end 47 end
63 48
64 local domain = validate_dnsname_option(opts, "domain"); 49 local domain = validate_dnsname_option(opts, "domain");
65 if not domain then 50 if not domain then
66 module:log("error", "--domain is required"); 51 module:log("error", "--domain is required");
70 or async.wait_for(dns:lookup_promise(domain, "SOA"):next(function(ret) return ret[1].soa.mname; end)); 55 or async.wait_for(dns:lookup_promise(domain, "SOA"):next(function(ret) return ret[1].soa.mname; end));
71 if not primary then 56 if not primary then
72 module:log("error", "Could not discover primary name server, specify it with --primary"); 57 module:log("error", "Could not discover primary name server, specify it with --primary");
73 return 1; 58 return 1;
74 end 59 end
75 local target = validate_dnsname_option(opts, "target", module:context(vhost):get_option_string("xmpp_host", ihost));
76 -- TODO validate that target has A/AAAA
77
78 local configured_ports = {
79 ["xmpp-client"] = module:get_option_array("c2s_ports", { 5222 });
80 ["xmpp-server"] = module:get_option_array("s2s_ports", { 5269 });
81 ["xmpps-client"] = module:get_option_array("c2s_direct_tls_ports", {});
82 ["xmpps-server"] = module:get_option_array("s2s_direct_tls_ports", {});
83 };
84
85 local modules_enabled = modulemanager.get_modules_for_host(vhost);
86 if not modules_enabled:contains("c2s") then
87 configured_ports["xmpp-client"] = {};
88 configured_ports["xmpps-client"] = {};
89 end
90 if not modules_enabled:contains("s2s") then
91 configured_ports["xmpp-server"] = {};
92 configured_ports["xmpps-server"] = {};
93 end
94
95 if modules_enabled:contains("net_multiplex") then
96 for opt, ports in pairs(configured_ports) do
97 ports:append(module:get_option_array(opt:sub(1, 5) == "xmpps" and "ssl_ports" or "ports", {}));
98 end
99 end
100
101 local existing_srv = {};
102 for _, service in ipairs(services) do
103 existing_srv[service] = dns:lookup_promise(("_%s._tcp.%s"):format(service, ihost), "SRV");
104 end
105 60
106 print("zone", domain); 61 print("zone", domain);
107 print("server", primary); 62 print("server", primary);
108 print("ttl " .. tostring(opts.ttl or 60 * 60)); 63 print("ttl " .. tostring(opts.ttl or 60 * 60));
109 64
110 for _, service in ipairs(services) do 65 for _, vhost in ipairs(arg) do
111 local config_ports = set.new(configured_ports[service]); 66 if not vhost then
112 local dns_ports = set.new(); 67 module:log("error", "Host %q fails normalization", arg[1]);
68 return 1;
69 end
70 local ihost = idna_to_ascii(vhost);
71 if not ihost then
72 module:log("error", "Host %q fails IDNA", vhost);
73 return 1;
74 end
75 if not config.get(vhost, "component_module") and not config.get(vhost, "defined") then
76 module:log("error", "Host %q is not defined in the config", vhost);
77 return 1;
78 end
113 79
114 if (opts.reset or opts.remove) and not opts.each then 80 local target = validate_dnsname_option(opts, "target", module:context(vhost):get_option_string("xmpp_host", ihost));
115 print(("del _%s._tcp.%s IN SRV"):format(service, ihost)); 81 -- TODO validate that target has A/AAAA
116 else 82
117 local records = (async.wait_for(existing_srv[service])); 83 local configured_ports = {
118 for _, rr in ipairs(records) do 84 ["xmpp-client"] = module:get_option_array("c2s_ports", { 5222 });
119 if target == nameprep(rr.srv.target):gsub("%.$", "") then 85 ["xmpp-server"] = module:get_option_array("s2s_ports", { 5269 });
120 dns_ports:add(rr.srv.port) 86 ["xmpps-client"] = module:get_option_array("c2s_direct_tls_ports", {});
121 elseif opts.each then 87 ["xmpps-server"] = module:get_option_array("s2s_direct_tls_ports", {});
122 print(("del _%s._tcp.%s IN SRV %s"):format(service, ihost, rr)); 88 };
123 end 89
90 local modules_enabled = modulemanager.get_modules_for_host(vhost);
91 if not modules_enabled:contains("c2s") then
92 configured_ports["xmpp-client"] = {};
93 configured_ports["xmpps-client"] = {};
94 end
95 if not modules_enabled:contains("s2s") then
96 configured_ports["xmpp-server"] = {};
97 configured_ports["xmpps-server"] = {};
98 end
99
100 if modules_enabled:contains("net_multiplex") then
101 for opt, ports in pairs(configured_ports) do
102 ports:append(module:get_option_array(opt:sub(1, 5) == "xmpps" and "ssl_ports" or "ports", {}));
124 end 103 end
125 end 104 end
126 105
127 if not opts.remove then 106 local existing_srv = {};
128 if config_ports:empty() then 107 for _, service in ipairs(services) do
129 print(("add _%s._tcp.%s IN SRV 0 0 0 ."):format(service, ihost)); 108 existing_srv[service] = dns:lookup_promise(("_%s._tcp.%s"):format(service, ihost), "SRV");
109 end
110
111 for _, service in ipairs(services) do
112 local config_ports = set.new(configured_ports[service]);
113 local dns_ports = set.new();
114
115 if (opts.reset or opts.remove) and not opts.each then
116 print(("del _%s._tcp.%s IN SRV"):format(service, ihost));
130 else 117 else
131 for port in (config_ports - dns_ports) do 118 local records = (async.wait_for(existing_srv[service]));
132 print(("add _%s._tcp.%s IN SRV 1 1 %d %s"):format(service, ihost, port, target)); 119 for _, rr in ipairs(records) do
120 if target == nameprep(rr.srv.target):gsub("%.$", "") then
121 dns_ports:add(rr.srv.port)
122 elseif opts.each then
123 print(("del _%s._tcp.%s IN SRV %s"):format(service, ihost, rr));
124 end
125 end
126 end
127
128 if not opts.remove then
129 if config_ports:empty() then
130 print(("add _%s._tcp.%s IN SRV 0 0 0 ."):format(service, ihost));
131 else
132 for port in (config_ports - dns_ports) do
133 print(("add _%s._tcp.%s IN SRV 1 1 %d %s"):format(service, ihost, port, target));
134 end
133 end 135 end
134 end 136 end
135 end 137 end
136 end 138 end
137 139