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util.sslconfig: Support DH parameters as literal string

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Simplifies shipping well-known DH parameters in the config
This commit is contained in:
Kim Alvefur 2024-07-12 15:21:08 +02:00
parent b9cfebff24
commit dd657746b4
2 changed files with 16 additions and 3 deletions
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5
net/tls_luasec.lua
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@ -54,7 +54,10 @@ local function new_context(cfg, builder)
-- LuaSec expects dhparam to be a callback that takes two arguments.
-- We ignore those because it is mostly used for having a separate
-- set of params for EXPORT ciphers, which we don't have by default.
if type(cfg.dhparam) == "string" then
if type(cfg.dhparam) == "string" and cfg.dhparam:sub(1, 10) == "-----BEGIN" then
local dhparam = cfg.dhparam;
cfg.dhparam = function() return dhparam; end
elseif type(cfg.dhparam) == "string" then
local f, err = io_open(cfg.dhparam);
if not f then return nil, "Could not open DH parameters: "..err end
local dhparam = f:read("*a");