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)

-- vim:sts=4 sw=4

-- Prosody IM
-- Copyright (C) 2008-2010 Matthew Wild
-- Copyright (C) 2008-2010 Waqas Hussain
-- Copyright (C) 2012 Rob Hoelz
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--

----------------------------------------
-- Constants and such --
----------------------------------------

local setmetatable = setmetatable;
local ldap         = module:require 'ldap';
local vcardlib     = module:require 'ldap/vcard';
local st           = require 'util.stanza';
local gettime      = require 'socket'.gettime;

if not ldap then
    return;
end

local CACHE_EXPIRY = 300;
local params       = module:get_option('ldap');

----------------------------------------
-- Utility Functions --
----------------------------------------

local function ldap_record_to_vcard(record)
    return vcardlib.create {
        record = record,
        format = params.vcard_format,
    }
end

local get_alias_for_user;

do
  local user_cache;
  local last_fetch_time;

  local function populate_user_cache()
      local ld = ldap.getconnection();

      local usernamefield = params.user.usernamefield;
      local namefield     = params.user.namefield;

      user_cache = {};

      for _, attrs in ld:search { base = params.user.basedn, scope = 'onelevel', filter = params.user.filter } do
          user_cache[attrs[usernamefield]] = attrs[namefield];
      end
      last_fetch_time = gettime();
  end

  function get_alias_for_user(user)
      if last_fetch_time and last_fetch_time + CACHE_EXPIRY < gettime() then
          user_cache = nil;
      end
      if not user_cache then
          populate_user_cache();
      end
      return user_cache[user];
  end
end

----------------------------------------
-- General Setup --
----------------------------------------

local ldap_store   = {};
ldap_store.__index = ldap_store;

local adapters = {
    roster = {},
    vcard  = {},
}

for k, v in pairs(adapters) do
    setmetatable(v, ldap_store);
    v.__index = v;
    v.name    = k;
end

function ldap_store:get(username)
    return nil, "get method unimplemented on store '" .. tostring(self.name) .. "'"
end

function ldap_store:set(username, data)
    return nil, "LDAP storage is currently read-only";
end

----------------------------------------
-- Roster Storage Implementation --
----------------------------------------

function adapters.roster:get(username)
    local ld = ldap.getconnection();
    local contacts = {};

    local memberfield = params.groups.memberfield;
    local namefield   = params.groups.namefield;
    local filter      = memberfield .. '=' .. tostring(username);

    local groups = {};
    for _, config in ipairs(params.groups) do
        groups[ config[namefield] ] = config.name;
    end

    -- XXX this kind of relies on the way we do groups at INOC
    for _, attrs in ld:search { base = params.groups.basedn, scope = 'onelevel', filter = filter } do
        if groups[ attrs[namefield] ] then
            local members = attrs[memberfield];

            for _, user in ipairs(members) do
                if user ~= username then
                    local jid    = user .. '@' .. module.host;
                    local record = contacts[jid];

                    if not record then
                        record = {
                            subscription = 'both',
                            groups       = {},
                            name         = get_alias_for_user(user),
                        };
                        contacts[jid] = record;
                    end

                    record.groups[ groups[ attrs[namefield] ] ] = true;
                end
            end
        end
    end

    return contacts;
end

----------------------------------------
-- vCard Storage Implementation --
----------------------------------------

function adapters.vcard:get(username)
    if not params.vcard_format then
        return nil, '';
    end

    local ld     = ldap.getconnection();
    local filter = params.user.usernamefield .. '=' .. tostring(username);

    local match = ldap.singlematch {
        base   = params.user.basedn,
        filter = filter,
    };
    if match then
        match.jid = username .. '@' .. module.host
        return st.preserialize(ldap_record_to_vcard(match));
    else
        return nil, 'not found';
    end
end

----------------------------------------
-- Driver Definition --
----------------------------------------

local driver = {};

function driver:open(store, typ)
    local adapter = adapters[store];

    if adapter and typ == nil or typ == "keyval" then
        return adapter;
    end
    return nil, "unsupported-store";
end
module:provides("storage", driver);