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Issue-ID: PORTAL-1084

Signed-off-by: Fiete Ostkamp <Fiete.Ostkamp@telekom.de>
Change-Id: Id0c94859a775094e67b0bb9c91ca5e776a08c068

1 files changed, 78 insertions, 0 deletions

diff --git a/server/resty/openssl/ctx.lua b/server/resty/openssl/ctx.lua
new file mode 100644
index 0000000..eaec396
--- /dev/null
+++ b/server/resty/openssl/ctx.lua
@@ -0,0 +1,78 @@
+local ffi = require "ffi"
+local C = ffi.C
+local ffi_gc = ffi.gc
+
+require "resty.openssl.include.ossl_typ"
+local format_error = require("resty.openssl.err").format_error
+local OPENSSL_3X = require("resty.openssl.version").OPENSSL_3X
+
+ffi.cdef [[
+  OSSL_LIB_CTX *OSSL_LIB_CTX_new(void);
+  int OSSL_LIB_CTX_load_config(OSSL_LIB_CTX *ctx, const char *config_file);
+  void OSSL_LIB_CTX_free(OSSL_LIB_CTX *ctx);
+]]
+
+local ossl_lib_ctx
+
+local function new(request_context_only, conf_file)
+  if not OPENSSL_3X then
+    return false, "ctx is only supported from OpenSSL 3.0"
+  end
+
+  local ctx = C.OSSL_LIB_CTX_new()
+  ffi_gc(ctx, C.OSSL_LIB_CTX_free)
+
+  if conf_file and C.OSSL_LIB_CTX_load_config(ctx, conf_file) ~= 1 then
+    return false, format_error("ctx.new")
+  end
+
+  if request_context_only then
+    ngx.ctx.ossl_lib_ctx = ctx
+  else
+    ossl_lib_ctx = ctx
+  end
+
+  return true
+end
+
+local function free(request_context_only)
+  if not OPENSSL_3X then
+    return false, "ctx is only supported from OpenSSL 3.0"
+  end
+
+  if request_context_only then
+    ngx.ctx.ossl_lib_ctx = nil
+  else
+    ossl_lib_ctx = nil
+  end
+
+  return true
+end
+
+local test_request
+
+do
+
+  local ok, exdata = pcall(require, "thread.exdata")
+  if ok and exdata then
+    test_request = function()
+      local r = exdata()
+      if r ~= nil then
+          return not not r
+      end
+    end
+
+  else
+    local getfenv = getfenv
+
+    function test_request()
+      return not not getfenv(0).__ngx_req
+    end
+  end
+end
+
+return {
+  new = new,
+  free = free,
+  get_libctx = function() return test_request() and ngx.ctx.ossl_lib_ctx or ossl_lib_ctx end,
+}
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