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local handlers = { };
local finalisers = { };
local id = function (v) return v end
function handlers.options(a, k, b)
local o = a[k] or { };
if type(b) ~= "table" then b = { b } end
for k,v in pairs(b) do
if v == true or v == false then
o[k] = v;
else
o[v] = true;
end
end
a[k] = o;
end
handlers.verify = handlers.options;
handlers.verifyext = handlers.options;
function finalisers.options(a)
local o = {};
for opt, enable in pairs(a) do
if enable then
o[#o+1] = opt;
end
end
return o;
end
finalisers.verify = finalisers.options;
finalisers.verifyext = finalisers.options;
function finalisers.ciphers(a)
if type(a) == "table" then
return table.concat(a, ":");
end
return a;
end
local protocols = { "sslv2", "sslv3", "tlsv1", "tlsv1_1", "tlsv1_2" };
for i = 1, #protocols do protocols[protocols[i] .. "+"] = i - 1; end
local function protocol(a)
local min_protocol = protocols[a.protocol];
if min_protocol then
a.protocol = "sslv23";
for i = 1, min_protocol do
table.insert(a.options, "no_"..protocols[i]);
end
end
end
local function apply(a, b)
if type(b) == "table" then
for k,v in pairs(b) do
(handlers[k] or rawset)(a, k, v);
end
end
end
local function final(a)
local f = { };
for k,v in pairs(a) do
f[k] = (finalisers[k] or id)(v);
end
protocol(f);
return f;
end
local sslopts_mt = {
__index = {
apply = apply;
final = final;
};
};
local function new()
return setmetatable({options={}}, sslopts_mt);
end
return {
apply = apply;
final = final;
new = new;
};
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