Mercurial > prosody-modules

view mod_post_msg/mod_post_msg.lua @ 4942:e7b9bc629ecc

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
mod_rest: Add special handling to catch MAM results from remote hosts Makes MAM queries to remote hosts works. As the comment says, MAM results from users' local archives or local MUCs are returned via origin.send() which is provided in the event and thus already worked. Results from remote hosts go via normal stanza routing and events, which need this extra handling to catch. This pattern of iq-set, message+, iq-result is generally limited to MAM. Closest similar thing might be MUC join, but to really handle that you would need the webhook callback mechanism.
author Kim Alvefur <zash@zash.se>
date Mon, 16 May 2022 19:47:09 +0200
parents 926aaaeb0d21
children
line wrap: on
line source

module:depends"http"

local jid_split = require "util.jid".split;
local jid_prep = require "util.jid".prep;
local msg = require "util.stanza".message;
local test_password = require "core.usermanager".test_password;
local b64_decode = require "util.encodings".base64.decode;
local formdecode = require "net.http".formdecode;
local xml = require"util.xml";
local json = require "util.json";

local function require_valid_user(f)
	return function(event, path)
		local request = event.request;
		local response = event.response;
		local headers = request.headers;
		if not headers.authorization then
			response.headers.www_authenticate = ("Basic realm=%q"):format(module.host.."/"..module.name);
			return 401
		end
		local from_jid, password = b64_decode(headers.authorization:match"[^ ]*$"):match"([^:]*):(.*)";
		from_jid = jid_prep(from_jid);
		if from_jid and password then
			local user, host = jid_split(from_jid);
			local ok, err = test_password(user, host, password);
			if ok and user and host then
				module:log("debug", "Authed as %s", from_jid);
				return f(event, path, from_jid);
			elseif err then
				module:log("debug", "User failed authentication: %s", err);
			end
		end
		return 401
	end
end

local function handle_post(event, path, authed_user)
	local request = event.request;
	local response = event.response;
	local headers = request.headers;

	local body_type = headers.content_type;
	local to = jid_prep(path);
	local message;
	if body_type == "text/plain" then
		if to and request.body then
			message = msg({ to = to, from = authed_user, type = "chat"},request.body);
		end
	elseif body_type == "application/x-www-form-urlencoded" then
		local post_body = formdecode(request.body);
		message = msg({ to = post_body.to or to, from = authed_user,
		                type = post_body.type or "chat"}, post_body.body);
		if post_body.html then
			local html, err = xml.parse([[<body xmlns="http://www.w3.org/1999/xhtml">]]..post_body.html..[[</body>]]);
			if not html then
				module:log("warn", "mod_post_msg: invalid XML: %s", err);
				return 400;
			end
			message:tag("html", {xmlns="http://jabber.org/protocol/xhtml-im"}):add_child(html):up();
		end
	elseif body_type == "application/json" then
		local post_body = json.decode(request.body);
		if not post_body then return 400; end
		message = msg({ to = post_body.to or to, from = authed_user,
		                type = post_body.type or "chat"}, post_body.body);
	else
		return 415;
	end
	if message and message.attr.to then
		module:log("debug", "Sending %s", tostring(message));
		module:send(message);
		return 201;
	end
	return 422;
end

module:provides("http", {
	default_path = "/msg";
	route = {
		["POST /*"] = require_valid_user(handle_post);
		OPTIONS = function(e)
			local headers = e.response.headers;
			headers.allow = "POST";
			headers.accept = "application/x-www-form-urlencoded, text/plain";
			return 200;
		end;
	}
});