Mercurial > prosody-modules
view mod_http_prebind/mod_http_prebind.lua @ 5818:d3b69859553a
mod_password_policy: Change error type from 'cancel' to 'modify'
This makes more sense, as the problem relates to the data that has been
entered, and therefore the request could be retried with different data.
author | Matthew Wild <mwild1@gmail.com> |
---|---|
date | Mon, 08 Jan 2024 17:28:39 +0000 |
parents | 495a23d61418 |
children |
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module:depends("http"); local http = require "net.http"; local format = require "util.format".format; local json_encode = require "util.json".encode; local promise = require "util.promise"; local xml = require "util.xml"; local t_insert = table.insert; local function new_options(host) return { headers = { ["Content-Type"] = "text/xml; charset=utf-8", ["Host"] = host, }, method = "POST", }; end local function connect_to_bosh(url, hostname) local rid = math.random(100000, 100000000) local options = new_options(hostname); options.body = format([[<body content='text/xml; charset=utf-8' hold='1' rid='%d' to='%s' wait='60' xml:lang='en' xmpp:version='1.0' xmlns='http://jabber.org/protocol/httpbind' xmlns:xmpp='urn:xmpp:xbosh'/>]], rid, hostname); local rid = rid + 1; return promise.new(function (on_fulfilled, on_error) assert(http.request(url, options, function (body, code) if code ~= 200 then on_error("Failed to fetch, HTTP error code "..code); return; end local body = xml.parse(body); local sid = body.attr.sid; local mechanisms = {}; for mechanism in body:get_child("features", "http://etherx.jabber.org/streams") :get_child("mechanisms", "urn:ietf:params:xml:ns:xmpp-sasl") :childtags("mechanism", "urn:ietf:params:xml:ns:xmpp-sasl") do mechanisms[mechanism:get_text()] = true; end on_fulfilled({ url = url, sid = sid, rid = rid, mechanisms = mechanisms }); end)); end); end local function authenticate(data) local options = new_options(); options.body = format([[<body sid='%s' rid='%d' xmlns='http://jabber.org/protocol/httpbind'> <auth xmlns='urn:ietf:params:xml:ns:xmpp-sasl' mechanism='ANONYMOUS'/> </body>]], data.sid, data.rid); data.rid = data.rid + 1; return promise.new(function (on_fulfilled, on_error) if data.mechanisms["ANONYMOUS"] == nil then on_error("No SASL ANONYMOUS mechanism supported on this host."); return; end assert(http.request(data.url, options, function (body, code) if code ~= 200 then on_error("Failed to fetch, HTTP error code "..code); return; end local body = xml.parse(body); local success = body:get_child("success", "urn:ietf:params:xml:ns:xmpp-sasl"); if success then data.mechanisms = nil; on_fulfilled(data); else on_error("Authentication failed."); end end)); end); end; local function restart_stream(data) local options = new_options(); options.body = format([[ <body sid='%s' rid='%d' xml:lang='en' xmlns='http://jabber.org/protocol/httpbind' xmlns:xmpp='urn:xmpp:xbosh' xmpp:restart='true'/>]], data.sid, data.rid); data.rid = data.rid + 1; return promise.new(function (on_fulfilled, on_error) assert(http.request(data.url, options, function (body, code) if code ~= 200 then on_error("Failed to fetch, HTTP error code "..code); return; end local body = xml.parse(body); on_fulfilled(data); end)); end); end; local function bind(data) local options = new_options(); options.body = format([[ <body sid='%s' rid='%d' xmlns='http://jabber.org/protocol/httpbind'> <iq xmlns='jabber:client' type='set'> <bind xmlns='urn:ietf:params:xml:ns:xmpp-bind'/> </iq> </body>]], data.sid, data.rid); data.rid = data.rid + 1; return promise.new(function (on_fulfilled, on_error) assert(http.request(data.url, options, function (body, code) if code ~= 200 then on_error("Failed to fetch, HTTP error code "..code); return; end local body = xml.parse(body); local jid = body:get_child("iq", "jabber:client") :get_child("bind", "urn:ietf:params:xml:ns:xmpp-bind") :get_child_text("jid", "urn:ietf:params:xml:ns:xmpp-bind"); on_fulfilled(json_encode({rid = data.rid, sid = data.sid, jid = jid})); end)); end); end; module:provides("http", { route = { ["GET"] = function (event) return connect_to_bosh("http://[::1]:5280/http-bind", module.host) :next(authenticate) :next(restart_stream) :next(bind); end; }; });