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 dataforms = require "util.dataforms";
local adhoc_util = require "util.adhoc";
local serialization = require "util.serialization";

local adhoc_new = module:require "adhoc".new;

-- Dataform borrowed from Prosodys busted test for util.dataforms
local form = dataforms.new({
	title = "form-title",
	instructions = "form-instructions",
	{
		type = "hidden",
		name = "FORM_TYPE",
		value = "xmpp:prosody.im/spec/util.dataforms#1",
	};
	{
		type = "fixed",
		label = "fixed-label",
		name = "fixed-field#1",
		value = "fixed-value",
	},
	{
		type = "hidden",
		label = "hidden-label",
		name = "hidden-field",
		value = "hidden-value",
	},
	{
		type = "text-single",
		label = "text-single-label",
		name = "text-single-field",
		value = "text-single-value",
	},
	{
		type = "text-multi",
		label = "text-multi-label",
		name = "text-multi-field",
		value = "text\nmulti\nvalue",
	},
	{
		type = "text-private",
		label = "text-private-label",
		name = "text-private-field",
		value = "text-private-value",
	},
	{
		type = "boolean",
		label = "boolean-label",
		name = "boolean-field",
		value = true,
	},
	{
		type = "fixed",
		label = "fixed-label",
		name = "fixed-field#2",
		value = "fixed-value",
	},
	{
		type = "list-multi",
		label = "list-multi-label",
		name = "list-multi-field",
		value = {
			"list-multi-option-value#1",
			"list-multi-option-value#3",
		},
		options = {
			{
				label = "list-multi-option-label#1",
				value = "list-multi-option-value#1",
				default = true,
			},
			{
				label = "list-multi-option-label#2",
				value = "list-multi-option-value#2",
				default = false,
			},
			{
				label = "list-multi-option-label#3",
				value = "list-multi-option-value#3",
				default = true,
			},
		}
	},
	{
		type = "jid-single",
		label = "jid-single-label",
		name = "jid-single-field",
		value = "jid@single/value",
	},
	{
		type = "jid-multi",
		label = "jid-multi-label",
		name = "jid-multi-field",
		value = {
			"jid@multi/value#1",
			"jid@multi/value#2",
		},
	},
	{
		type = "list-single",
		label = "list-single-label",
		name = "list-single-field",
		value = "list-single-value",
		options = {
			"list-single-value",
			"list-single-value#2",
			"list-single-value#3",
		}
	},
})

local function handler(fields, err, data) -- luacheck: ignore 212/data
		return {
			status = "completed",
			info = "Data was:\n"
				.. serialization.serialize(err or fields),
		};
end

module:provides("adhoc",
	adhoc_new("Dataforms Demo",
		"xmpp:zash.se/mod_adhoc_dataforms_demo#form",
		adhoc_util.new_simple_form(form, handler), "any"));


local function multi_step_command(_, data, state)

	if data.action == "cancel" then
		return { status = "canceled" };
	elseif data.action == "complete" then
		return {
			status = "completed",
			info = "State was:\n"
				.. serialization.serialize(state, { fatal = false }),
		};
	end
	if state and data.action == "execute" then
		data.action = "next";
	elseif not state and data.action == "next" then
		-- Prevent jumping directly to step 2
		return { status = "canceled", error = "Invalid action" };
	end
	state = state or { step = 1, forms = { } };

	if data.action == "next" then
		state.step = state.step + 1;
	elseif data.action == "prev" then
		state.step = math.max(state.step - 1, 1);
	end

	local current_form = state.forms[state.step]
	if not current_form then
		current_form = {
			title = string.format("Step %d", state.step);
			instructions = state.step == 1 and "Here's a form." or "Here's another form.";
		};
		local already_selected = {};
		for _ = 1, math.random(1, 5) do
			local random
			repeat
				random = math.random(2, #form);
			until not already_selected[random]
			already_selected[random] = true;
			table.insert(current_form, form[random]);
		end
		state.forms[state.step] = dataforms.new(current_form);
	end

	local next_step = {
		status = "executing",
		form = current_form,
		default = "next",
		actions = {
			"next", "complete"
		},
	};
	if state.step > 1 then
		table.insert(next_step.actions, 1, "prev");
	end
	return next_step, state;
end

local permission = "any";
if not module.send_iq then -- hacky attempt at detecting 0.11 or earlier
	permission = "user";
end

module:depends("adhoc");
module:provides("adhoc",
	adhoc_new("Multi-step command demo",
		"xmpp:zash.se/mod_adhoc_dataforms_demo#multi",
		multi_step_command, permission));