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author | Florian Zeitz <florob@babelmonkeys.de> | 2014-10-05 14:28:40 +0200 |
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committer | Florian Zeitz <florob@babelmonkeys.de> | 2014-10-05 14:28:40 +0200 |
commit | d8136ff52d2eb03397dfaa0df8e23e9047744429 (patch) | |
tree | fd47d58d7994b3839a524479b784a6b1cd7c9174 /net/dns.lua | |
parent | b9dbb1fb361c253776210678f34d7d19a7920da0 (diff) | |
download | prosody-d8136ff52d2eb03397dfaa0df8e23e9047744429.tar.gz prosody-d8136ff52d2eb03397dfaa0df8e23e9047744429.zip |
net.dns: Avoid duplicate cache entries
Diffstat (limited to 'net/dns.lua')
-rw-r--r-- | net/dns.lua | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/net/dns.lua b/net/dns.lua index 89bd3564..dc2da1b6 100644 --- a/net/dns.lua +++ b/net/dns.lua @@ -134,17 +134,19 @@ end local function prune(rrs, time, soft) -- - - - - - - - - - - - - - - prune time = time or socket.gettime(); - for i,rr in pairs(rrs) do + for i,rr in ipairs(rrs) do if rr.tod then -- rr.tod = rr.tod - 50 -- accelerated decripitude rr.ttl = math.floor(rr.tod - time); if rr.ttl <= 0 then + rrs[rr[rr.type:lower()]] = nil; table.remove(rrs, i); return prune(rrs, time, soft); -- Re-iterate end elseif soft == 'soft' then -- What is this? I forget! assert(rr.ttl == 0); - rrs[i] = nil; + rrs[rr[rr.type:lower()]] = nil; + table.remove(rrs, i); end end end @@ -187,7 +189,7 @@ end local rrs_metatable = {}; -- - - - - - - - - - - - - - - - - - rrs_metatable function rrs_metatable.__tostring(rrs) local t = {}; - for i,rr in pairs(rrs) do + for i,rr in ipairs(rrs) do append(t, tostring(rr)..'\n'); end return table.concat(t); @@ -674,7 +676,10 @@ function resolver:remember(rr, type) -- - - - - - - - - - - - - - remember self.cache = self.cache or setmetatable({}, cache_metatable); local rrs = get(self.cache, qclass, type, qname) or set(self.cache, qclass, type, qname, setmetatable({}, rrs_metatable)); - append(rrs, rr); + if not rrs[rr[qtype:lower()]] then + rrs[rr[qtype:lower()]] = true; + append(rrs, rr); + end if type == 'MX' then self.unsorted[rrs] = true; end end |