File

mod_email/mod_email.lua @ 4877:adc6241e5d16

mod_measure_process: Report the enforced limit The soft limit is what the kernel actually enforces, while the hard limit is is how far you can change the soft limit without privileges. Unless the process dynamically adjusts the soft limit, knowing the hard limit is not as useful as knowing the soft limit. Reporting the soft limit and the number of in-use FDs allows placing alerts on expressions like 'process_open_fds / process_max_fds >= 0.95'
author Kim Alvefur <zash@zash.se>
date Tue, 18 Jan 2022 18:55:20 +0100
parent 3836:070faeaf51bc
line wrap: on
line source

module:set_global();

local moduleapi = require "core.moduleapi";

local smtp = require"socket.smtp";

local config = module:get_option("smtp", { origin = "prosody", exec = "sendmail" });

local function send_email(to, headers, content)
	if type(headers) == "string" then -- subject
		headers = {
			Subject = headers;
			From = config.origin;
		};
	end
	headers.To = to;
	if not headers["Content-Type"] then
		headers["Content-Type"] = 'text/plain; charset="utf-8"';
	end
	local message = smtp.message{
		headers = headers;
		body = content;
	};

	if config.exec then
		local pipe = io.popen(config.exec ..
			" '"..to:gsub("'", "'\\''").."'", "w");

		for str in message do
			pipe:write(str);
		end

		return pipe:close();
	end

	return smtp.send({
		user = config.user; password = config.password;
		server = config.server; port = config.port;
		domain = config.domain;

		from = config.origin; rcpt = to;
		source = message;
	});
end

assert(not moduleapi.send_email, "another email module is already loaded");
function moduleapi:send_email(email) --luacheck: ignore 212/self
	return send_email(email.to, email.headers or email.subject, email.body);
end