mod_voipms: New Module to send and receive SMS/MMS via VoIP.ms APIs. diff --git a/mod_voipms/README.md b/mod_voipms/README.md new file mode 100644 --- /dev/null +++ b/mod_voipms/README.md @@ -0,0 +1,51 @@ +--- +labels: +- 'Stage-Alpha' +- 'Type-Web' +summary: Send and receive SMS/MMS via VoIP.ms APIs. +rockspec: + build: + modules: + mod_voipms: mod_voipms.lua +... + +Introduction +============ + +This is a Prosody module to map JIDs to DIDs on VoIP.ms and support sending/receiving SMS/MMS. + +Configuration +============= + +| option | type | default | +|-----------------------|--------|---------| +| voipms\_api\_username | string | nil | +| voipms\_api\_password | string | nil | +| voipms\_query\_key | string | nil | +| voipms\_jid\_map | table | nil | +``` +VirtualHost "sms.example.com" +modules_enabled = { + "voipms"; +} +voipms_api_username = john@example.com -- E-mail registered with VoIP.ms +voipms_api_password = abcd1234 -- API password configured in VoIP.ms +voipms_query_key = some_query_key -- query param 'key' part of your URL callback +voipms_jid_map = { + ["your_jid@your_domain.com"] = "+1234567890" +} +``` + +HTTP +==== + +The module is served on Prosody's default HTTP ports at the path /voipms. More details on configuring HTTP modules in Prosody can be found in the HTTP documentation. + +VoIP.ms Webhook URL +=================== + +This module receives the VoIP.ms Webhook URL (POST) at the /voipms endpoint. It uses the sendSMS/sendMMS GET methods against the VoIP.ms APIs. This is an example webhook to use in VoIP.ms: + +``` +https://sms.example.com/voipms?key=some_query_key +``` diff --git a/mod_voipms/mod_voipms.lua b/mod_voipms/mod_voipms.lua new file mode 100644 --- /dev/null +++ b/mod_voipms/mod_voipms.lua @@ -0,0 +1,166 @@ +local http = require "net.http" +local json = require "util.json" +local st = require "util.stanza" + +local api_username = module:get_option_string("voipms_api_username") +local api_password = module:get_option_string("voipms_api_password") +local query_key = module:get_option("voipms_query_key") +local jid_map = module:get_option("voipms_jid_map") or {} +local rest_endpoint = "https://voip.ms/api/v1/rest.php" + +if not api_username or not api_password or not query_key then + module:log("error", "Missing required config values (voipms_api_username, voipms_api_password, voipms_query_key)") + return +end + +module:depends("http") + +local function normalize_number(num) + if not num then return nil end + if num:sub(1, 1) ~= "+" then + return "+1" .. num + end + return num +end + +local function extract_query_key(event) + return (event.request.url.query or ""):match("key=([^&]+)") +end + +module:provides("http", { + route = { + ["POST"] = function(event) + local req = event.request + local body = req.body or "" + + if extract_query_key(event) ~= query_key then + module:log("warn", "Unauthorized webhook: missing or invalid key") + return { status_code = 403 } + end + + local json_payload, err = json.decode(body) + if not json_payload then + module:log("warn", "Invalid JSON: %s", err or "unknown error") + return { status_code = 400 } + end + + local payload = json_payload.data and json_payload.data.payload + if not payload then + module:log("warn", "Missing payload in JSON") + return { status_code = 400 } + end + + local from = payload.from and payload.from.phone_number + local to_list = payload.to or {} + local to = #to_list > 0 and to_list[1].phone_number or nil + + if not from or not to then + module:log("warn", "Missing phone numbers (from: %s, to: %s)", tostring(from), tostring(to)) + return { status_code = 400 } + end + + local normalized_to = normalize_number(to) + local target_jid = nil + + for jid, did in pairs(jid_map) do + if normalize_number(did) == normalized_to then + target_jid = jid + break + end + end + + if not target_jid then + module:log("warn", "No JID mapping for DID %s", normalized_to) + return { status_code = 404 } + end + + local normalized_from = normalize_number(from) + local message_text = payload.text or "" + + local message = st.message({ + from = normalized_from .. "@" .. module.host, + to = target_jid, + type = "chat" + }):tag("body"):text(message_text):up() + + if payload.media and #payload.media > 0 then + for _, media_item in ipairs(payload.media) do + if media_item.url then + message_text = message_text .. "\n" .. media_item.url + message:tag("x", { xmlns = "jabber:x:oob" }) + :tag("url"):text(media_item.url):up():up() + end + end + end + + module:send(message) + module:log("info", "Delivered SMS from %s to %s", normalized_from, target_jid) + + return { status_code = 204 } + end + } +}) + +module:hook("message/bare", function(event) + local stanza = event.stanza + if stanza.attr.type ~= "chat" then return end + + local from_jid = stanza.attr.from + local to_jid = stanza.attr.to + local body = stanza:get_child_text("body") + if not body or body == "" then return end + + local from_number = jid_map[from_jid] + if not from_number then + module:log("warn", "No DID mapping for JID %s", from_jid) + return + end + + local to_number = to_jid:match("^([^@]+)") + if not to_number then + module:log("warn", "Malformed JID in message.to: %s", to_jid) + return + end + + to_number = normalize_number(to_number) + + local media_urls = {} + for line in body:gmatch("[^\r\n]+") do + if line:match("^https?://") then + table.insert(media_urls, line) + end + end + + local method = (#media_urls > 0) and "sendMMS" or "sendSMS" + local query = { + api_username = api_username, + api_password = api_password, + method = method, + did = from_number, + dst = to_number, + message = body + } + + if method == "sendMMS" then + for i, url in ipairs(media_urls) do + query["media_url[" .. (i - 1) .. "]"] = url + end + end + + local query_str = http.formencode(query) + + http.request(rest_endpoint .. "?" .. query_str, { + method = "GET"; + }, function(response_body, code) + if code == 200 then + local resp, err = json.decode(response_body) + if not resp or resp.status ~= "success" then + module:log("error", "Failed to send %s: %s", method, err or (resp and resp.status) or "unknown") + else + module:log("info", "Sent %s from %s to %s", method, from_number, to_number) + end + else + module:log("error", "HTTP error sending %s: code %s", method, tostring(code)) + end + end) +end)

local dm_load = require "util.datamanager".load;
local dm_store = require "util.datamanager".store;

local usermanager = require "core.usermanager";
local dataforms_new = require "util.dataforms".new;
local jid_split = require "util.jid".prepped_split;
local vcard = module:require "vcard";
local rawget, rawset = rawget, rawset;
local s_lower = string.lower;
local s_find = string.find;

local st = require "util.stanza";
local template = require "util.template";

local instructions = module:get_option_string("vjud_instructions", "Fill in one or more fields to search for any matching Jabber users.");

local get_reply = template[[
<query xmlns="jabber:iq:search">
  <instructions>{instructions}</instructions>
  <first/>
  <last/>
  <nick/>
  <email/>
</query>
]].apply({ instructions = instructions });
local item_template = template[[
<item xmlns="jabber:iq:search" jid="{jid}">
  <first>{first}</first>
  <last>{last}</last>
  <nick>{nick}</nick>
  <email>{email}</email>
</item>
]];

local search_mode = module:get_option_string("vjud_mode", "opt-in");
local allow_remote = module:get_option_boolean("allow_remote_searches", search_mode ~= "all");
local base_host = module:get_option_string("vjud_search_domain",
	module:get_host_type() == "component"
		and module.host:gsub("^[^.]+%.","")
		or module.host);

module:depends"disco";
if module:get_host_type() == "component" then
	module:add_identity("directory", "user", module:get_option_string("name", "User search"));
end
module:add_feature("jabber:iq:search");

local vCard_mt = {
	__index = function(t, k)
		if type(k) ~= "string" then return nil end
		for i=1,#t do
			local t_i = rawget(t, i);
			if t_i and t_i.name == k then
				rawset(t, k, t_i);
				return t_i;
			end
		end
	end
};

local function get_user_vcard(user, host)
	local vCard, err = dm_load(user, host or base_host, "vcard");
	if not vCard then return nil, err; end
	vCard = st.deserialize(vCard);
	vCard, err = vcard.from_xep54(vCard);
	if not vCard then return nil, err; end
	return setmetatable(vCard, vCard_mt);
end

local at_host = "@"..base_host;

local users; -- The user iterator

module:hook("iq/host/jabber:iq:search:query", function(event)
	local origin, stanza = event.origin, event.stanza;

	if not (allow_remote or origin.type == "c2s") then
		origin.send(st.error_reply(stanza, "cancel", "not-allowed"))
		return true;
	end

	if stanza.attr.type == "get" then
		origin.send(st.reply(stanza):add_child(get_reply));
	else -- type == "set"
		local query = stanza.tags[1];
		local first, last, nick, email =
			s_lower(query:get_child_text"first" or ""),
			s_lower(query:get_child_text"last" or ""),
			s_lower(query:get_child_text"nick" or ""),
			s_lower(query:get_child_text"email" or "");

		first = #first >= 2 and first;
		last  = #last  >= 2 and last;
		nick  = #nick  >= 2 and nick;
		email = #email >= 2 and email;
		if not ( first or last or nick or email ) then
			origin.send(st.error_reply(stanza, "modify", "not-acceptable", "All fields were empty or too short"));
			return true;
		end

		local reply = st.reply(stanza):query("jabber:iq:search");

		local username, hostname = jid_split(email);
		if hostname == base_host and username and usermanager.user_exists(username, hostname) then
			local vCard, err = get_user_vcard(username);
			if not vCard then
				module:log("debug", "Couldn't get vCard for user %s: %s", username, err or "unknown error");
			else
				reply:add_child(item_template.apply{
					jid = username..at_host;
					first = vCard.N and vCard.N[2] or nil;
					last = vCard.N and vCard.N[1] or nil;
					nick = vCard.NICKNAME and vCard.NICKNAME[1] or username;
					email = vCard.EMAIL and vCard.EMAIL[1] or nil;
				});
			end
		else
			for username in users() do
				local vCard = get_user_vcard(username);
				if vCard
				and ((first and vCard.N and s_find(s_lower(vCard.N[2]), first, nil, true))
				or (last and vCard.N and s_find(s_lower(vCard.N[1]), last, nil, true))
				or (nick and vCard.NICKNAME and s_find(s_lower(vCard.NICKNAME[1]), nick, nil, true))
				or (email and vCard.EMAIL and s_find(s_lower(vCard.EMAIL[1]), email, nil, true))) then
					reply:add_child(item_template.apply{
						jid = username..at_host;
						first = vCard.N and vCard.N[2] or nil;
						last = vCard.N and vCard.N[1] or nil;
						nick = vCard.NICKNAME and vCard.NICKNAME[1] or username;
						email = vCard.EMAIL and vCard.EMAIL[1] or nil;
					});
				end
			end
		end
		origin.send(reply);
	end
	return true;
end);

if search_mode == "all" then
	function users()
		return usermanager.users(base_host);
	end
else -- if "opt-in", default
	local opted_in;
	function module.load()
		opted_in = dm_load(nil, module.host, "user_index") or {};
	end
	function module.unload()
		dm_store(nil, module.host, "user_index", opted_in);
	end
	function users()
		return pairs(opted_in);
	end
	local opt_in_layout = dataforms_new{
		title = "Search settings";
		instructions = "Do you want to appear in search results?";
		{
			name = "searchable",
			label = "Appear in search results?",
			type = "boolean",
		},
	};
	local function opt_in_handler(self, data, state)
		local username, hostname = jid_split(data.from);
		if state then -- the second return value
			if data.action == "cancel" then
				return { status = "canceled" };
			end

			if not username or not hostname or hostname ~= base_host then
				return { status = "error", error = { type = "cancel",
				condition = "forbidden", message = "Invalid user or hostname." } };
			end

			local fields = opt_in_layout:data(data.form);
			opted_in[username] = fields.searchable or nil

			return { status = "completed" }
		else -- No state, send the form.
			return { status = "executing", actions  = { "complete" },
			form = { layout = opt_in_layout, values = { searchable = opted_in[username] } } }, true;
		end
	end

	local adhoc_new = module:require "adhoc".new;
	local adhoc_vjudsetup = adhoc_new("Search settings", "vjudsetup", opt_in_handler, "any");--, "self");-- and nil);
	module:depends"adhoc";
	module:provides("adhoc", adhoc_vjudsetup);

end