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comparison net/resolvers/basic.lua @ 10436:0d702ec77f0c 0.11

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net.resolvers.basic: Move IP literal check to constructor This is to prepare for fixing #1459. An IPv6 literal in [ ] brackets does not pass IDNA and resolving it fails there.
author Kim Alvefur <zash@zash.se>
date Sun, 24 Nov 2019 04:23:51 +0100
parents 4c2d789a106b
children fcfc8f4d14a8
comparison
equal deleted inserted replaced
10433:7777f25d5266 10436:0d702ec77f0c
31 if n > 0 then return; end 31 if n > 0 then return; end
32 self.targets = targets; 32 self.targets = targets;
33 self:next(cb); 33 self:next(cb);
34 end 34 end
35 35
36 local is_ip = inet_pton(self.hostname);
37 if is_ip then
38 if #is_ip == 16 then
39 cb(self.conn_type.."6", self.hostname, self.port, self.extra);
40 elseif #is_ip == 4 then
41 cb(self.conn_type.."4", self.hostname, self.port, self.extra);
42 end
43 return;
44 end
45
46 -- Resolve DNS to target list 36 -- Resolve DNS to target list
47 local dns_resolver = adns.resolver(); 37 local dns_resolver = adns.resolver();
48 dns_resolver:lookup(function (answer) 38 dns_resolver:lookup(function (answer)
49 if answer then 39 if answer then
50 for _, record in ipairs(answer) do 40 for _, record in ipairs(answer) do
63 ready(); 53 ready();
64 end, self.hostname, "AAAA", "IN"); 54 end, self.hostname, "AAAA", "IN");
65 end 55 end
66 56
67 local function new(hostname, port, conn_type, extra) 57 local function new(hostname, port, conn_type, extra)
58 local ascii_host = idna_to_ascii(hostname);
59 local targets = nil;
60
61 local is_ip = inet_pton(hostname);
62 if is_ip then
63 if #is_ip == 16 then
64 targets = { { conn_type.."6", hostname, port, extra } };
65 elseif #is_ip == 4 then
66 targets = { { conn_type.."4", hostname, port, extra } };
67 end
68 end
69
68 return setmetatable({ 70 return setmetatable({
69 hostname = idna_to_ascii(hostname); 71 hostname = ascii_host;
70 port = port; 72 port = port;
71 conn_type = conn_type or "tcp"; 73 conn_type = conn_type or "tcp";
72 extra = extra; 74 extra = extra;
75 targets = targets;
73 }, resolver_mt); 76 }, resolver_mt);
74 end 77 end
75 78
76 return { 79 return {
77 new = new; 80 new = new;