author | Matthew Wild <mwild1@gmail.com> |
Sun, 04 Sep 2022 09:51:36 +0100 | |
changeset 5041 | 8a8100fff580 |
parent 4900 | 54fa2116bbf3 |
child 5692 | 429be658c0bb |
permissions | -rw-r--r-- |
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1 |
module:set_global(); |
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|
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local config = require "core.configmanager"; |
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local argparse = require "util.argparse"; |
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local dns = require"net.adns".resolver(); |
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local async = require "util.async"; |
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local set = require "util.set"; |
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local nameprep = require"util.encodings".stringprep.nameprep; |
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local idna_to_ascii = require"util.encodings".idna.to_ascii; |
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local virtualhost_services = { "xmpp-client"; "xmpps-client"; "xmpp-server"; "xmpps-server" } |
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local component_services = { "xmpp-server"; "xmpps-server" } |
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|
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local function validate_dnsname_option(options, option_name, default) |
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local host = options[option_name]; |
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if host == nil then return default end |
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local normalized = nameprep(host); |
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if not normalized then |
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module:log("error", "--%s %q fails normalization"); |
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return; |
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end |
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local alabel = idna_to_ascii(normalized); |
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if not alabel then |
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module:log("error", "--%s %q fails IDNA"); |
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return; |
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end |
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return alabel; |
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end |
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|
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function module.command(arg) |
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local opts = argparse.parse(arg, { |
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short_params = { d = "domain"; p = "primary"; t = "target"; l = "ttl"; h = "help"; ["?"] = "help" }; |
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value_params = { domain = true; primary = true; target = true; ttl = true }; |
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}); |
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|
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if not arg[1] or arg[2] or not opts or opts.help or not opts.domain then |
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local out = opts.help and io.stdout or io.stderr; |
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out:write("prosodyctl mod_dnsupdate [options] virtualhost\n"); |
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out:write("\t-d --domain\tbase domain name *required*\n"); |
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out:write("\t-p --primary\tprimary DNS name server\n"); |
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out:write("\t-t --target\ttarget hostname for SRV\n"); |
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out:write("\t-l --ttl\tTTL to use\n"); |
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out:write("\t--each\tremove and replace individual SRV records\n"); |
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out:write("\t--reset\tremove and replace all SRV records\n"); |
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out:write("\t--remove\tremove all SRV records\n"); |
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return opts and opts.help and 0 or 1; |
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end |
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|
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local vhost = nameprep(arg[1]); -- TODO loop over arg[]? |
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if not vhost then |
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module:log("error", "Host %q fails normalization", arg[1]); |
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return 1; |
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end |
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local ihost = idna_to_ascii(vhost); |
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if not ihost then |
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module:log("error", "Host %q fails IDNA", vhost); |
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return 1; |
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end |
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local is_component = config.get(vhost, "component_module"); |
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if not is_component and not config.get(vhost, "defined") then |
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module:log("error", "Host %q is not defined in the config", vhost); |
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return 1; |
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end |
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|
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local services = virtualhost_services; |
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if is_component then services = component_services; end |
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|
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local domain = validate_dnsname_option(opts, "domain"); |
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if not domain then |
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module:log("error", "--domain is required"); |
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return 1; |
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end |
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local primary = validate_dnsname_option(opts, "primary") |
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or async.wait_for(dns:lookup_promise(domain, "SOA"):next(function(ret) return ret[1].soa.mname; end)); |
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if not primary then |
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module:log("error", "Could not discover primary name server, specify it with --primary"); |
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return 1; |
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end |
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local target = validate_dnsname_option(opts, "target", module:context(vhost):get_option_string("xmpp_host", ihost)); |
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-- TODO validate that target has A/AAAA |
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|
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local configured_ports = { |
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["xmpp-client"] = module:get_option_array("c2s_ports", { 5222 }); |
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["xmpp-server"] = module:get_option_array("s2s_ports", { 5269 }); |
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["xmpps-client"] = module:get_option_array("c2s_direct_tls_ports", {}); |
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["xmpps-server"] = module:get_option_array("s2s_direct_tls_ports", {}); |
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}; |
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88 |
|
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89 |
if opts.multiplex then |
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for opt, ports in pairs(configured_ports) do |
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ports:append(module:get_option_array(opt:sub(1, 5) == "xmpps" and "ssl_ports" or "ports", {})); |
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end |
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end |
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94 |
|
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local existing_srv = {}; |
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for _, service in ipairs(services) do |
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existing_srv[service] = dns:lookup_promise(("_%s._tcp.%s"):format(service, ihost), "SRV"); |
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end |
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|
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100 |
print("zone", domain); |
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101 |
print("server", primary); |
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print("ttl " .. tostring(opts.ttl or 60 * 60)); |
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103 |
|
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104 |
for _, service in ipairs(services) do |
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105 |
local ports = set.new(configured_ports[service]); |
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106 |
local records = (async.wait_for(existing_srv[service])); |
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107 |
if opts.remove or opts.reset then |
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108 |
print(("del _%s._tcp.%s IN SRV"):format(service, ihost)); |
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109 |
else |
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changeset
|
110 |
for _, rr in ipairs(records) do |
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parents:
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changeset
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111 |
if ports:contains(rr.srv.port) and target == nameprep(rr.srv.target):gsub("%.$", "") then |
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parents:
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changeset
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112 |
ports:remove(rr.srv.port) |
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mod_dnsupdate: Restore the --each option
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parents:
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113 |
elseif not opts.each then |
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114 |
print(("del _%s._tcp.%s IN SRV"):format(service, ihost)); |
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changeset
|
115 |
break |
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changeset
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116 |
else |
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117 |
print(("del _%s._tcp.%s IN SRV %s"):format(service, ihost, rr)); |
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118 |
end |
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parents:
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changeset
|
119 |
end |
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parents:
diff
changeset
|
120 |
end |
4900
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mod_dnsupdate: Add a --remove option to delete all SRV records
Kim Alvefur <zash@zash.se>
parents:
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diff
changeset
|
121 |
if not opts.remove then |
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122 |
for port in ports do print(("add _%s._tcp.%s IN SRV 1 1 %d %s"):format(service, ihost, port, target)); end |
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parents:
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diff
changeset
|
123 |
end |
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124 |
end |
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parents:
diff
changeset
|
125 |
|
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|
126 |
print("show"); |
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127 |
print("send"); |
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|
128 |
print("answer"); |
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changeset
|
129 |
end |