prosody-modules
b10118d7c0df
mod_s2s_auth_dane/mod_s2s_auth_dane.lua

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mod_s2s_auth_dane/mod_s2s_auth_dane.lua @ 1972:b10118d7c0df

mod_s2s_auth_dane: More DNS related debug logging
author Kim Alvefur <zash@zash.se>
date Sat, 12 Dec 2015 17:00:25 +0100
parent 1971:54405541d0ba
child 2003:8ccf347c7753
comparison
equal deleted inserted replaced
1971:54405541d0ba 1972:b10118d7c0df
82 local name = host_session.from_host and idna_to_ascii(host_session.from_host); 82 local name = host_session.from_host and idna_to_ascii(host_session.from_host);
83 if not name then 83 if not name then
84 log("warn", "Could not convert '%s' to ASCII for DNS lookup", tostring(host_session.from_host)); 84 log("warn", "Could not convert '%s' to ASCII for DNS lookup", tostring(host_session.from_host));
85 return; 85 return;
86 end 86 end
87 log("debug", "Querying SRV records from _xmpp-server._tcp.%s.", name);
87 host_session.dane = dns_lookup(function (answer, err) 88 host_session.dane = dns_lookup(function (answer, err)
88 host_session.dane = false; -- Mark that we already did the lookup 89 host_session.dane = false; -- Mark that we already did the lookup
89 90
90 if not answer then 91 if not answer then
91 log("debug", "Resolver error: %s", tostring(err)); 92 log("debug", "Resolver error: %s", tostring(err));
114 local srv_hosts = { answer = answer }; 115 local srv_hosts = { answer = answer };
115 host_session.srv_hosts = srv_hosts; 116 host_session.srv_hosts = srv_hosts;
116 local dane; 117 local dane;
117 for _, record in ipairs(answer) do 118 for _, record in ipairs(answer) do
118 t_insert(srv_hosts, record.srv); 119 t_insert(srv_hosts, record.srv);
120 log("debug", "Querying TLSA record for %s:%d", record.srv.target, record.srv.port);
119 dns_lookup(function(dane_answer) 121 dns_lookup(function(dane_answer)
120 log("debug", "Got answer for %s:%d", record.srv.target, record.srv.port); 122 log("debug", "Got answer for %s:%d", record.srv.target, record.srv.port);
121 n = n - 1; 123 n = n - 1;
122 -- There are three kinds of answers 124 -- There are three kinds of answers
123 -- Insecure, Secure and Bogus 125 -- Insecure, Secure and Bogus
173 return; -- No secure SRV records, fall back to non-DANE mode 175 return; -- No secure SRV records, fall back to non-DANE mode
174 -- Empty response were not kept by older mod_s2s/s2sout 176 -- Empty response were not kept by older mod_s2s/s2sout
175 end 177 end
176 -- Do TLSA lookup for currently selected SRV record 178 -- Do TLSA lookup for currently selected SRV record
177 local srv_choice = srv_hosts[host_session.srv_choice or 0] or { target = idna_to_ascii(host_session.to_host), port = 5269 }; 179 local srv_choice = srv_hosts[host_session.srv_choice or 0] or { target = idna_to_ascii(host_session.to_host), port = 5269 };
180 log("debug", "Querying TLSA record for %s:%d", srv_choice.target, srv_choice.port);
178 host_session.dane = dns_lookup(function(answer) 181 host_session.dane = dns_lookup(function(answer)
179 if answer and ((answer.secure and #answer > 0) or answer.bogus) then 182 if answer and ((answer.secure and #answer > 0) or answer.bogus) then
180 srv_choice.dane = answer; 183 srv_choice.dane = answer;
181 else 184 else
182 srv_choice.dane = false; 185 srv_choice.dane = false;