File

mod_compliance_2023: Add 2023 Version of the compliance module, basis is the 2021 Version. diff --git a/mod_compliance_2023/README.md b/mod_compliance_2023/README.md new file mode 100644 --- /dev/null +++ b/mod_compliance_2023/README.md @@ -0,0 +1,22 @@ +--- +summary: XMPP Compliance Suites 2023 self-test +labels: +- Stage-Beta +rockspec: + dependencies: + - mod_cloud_notify + +... + +Compare the list of enabled modules with +[XEP-0479: XMPP Compliance Suites 2023] and produce basic report to the +Prosody log file. + +If installed with the Prosody plugin installer then all modules needed for a green checkmark should be included. (With prosody 0.12 only [mod_cloud_notify] is not included with prosody and we need the community module) + +# Compatibility + + Prosody-Version Status + --------------- ---------------------- + trunk Works as of 2024-12-21 + 0.12 Works diff --git a/mod_compliance_2023/mod_compliance_2023.lua b/mod_compliance_2023/mod_compliance_2023.lua new file mode 100644 --- /dev/null +++ b/mod_compliance_2023/mod_compliance_2023.lua @@ -0,0 +1,79 @@ +-- Copyright (c) 2021 Kim Alvefur +-- +-- This module is MIT licensed. + +local hostmanager = require "core.hostmanager"; + +local array = require "util.array"; +local set = require "util.set"; + +local modules_enabled = module:get_option_inherited_set("modules_enabled"); + +for host in pairs(hostmanager.get_children(module.host)) do + local component = module:context(host):get_option_string("component_module"); + if component then + modules_enabled:add(component); + modules_enabled:include(module:context(host):get_option_set("modules_enabled", {})); + end +end + +local function check(suggested, alternate, ...) + if set.intersection(modules_enabled, set.new({suggested; alternate; ...})):empty() then return suggested; end + return false; +end + +local compliance = { + array {"Server"; check("tls"); check("disco")}; + + array {"Advanced Server"; check("pep", "pep_simple")}; + + array {"Web"; check("bosh"); check("websocket")}; + + -- No Server requirements for Advanced Web + + array {"IM"; check("vcard_legacy", "vcard"); check("carbons"); check("http_file_share", "http_upload")}; + + array { + "Advanced IM"; + check("vcard_legacy", "vcard"); + check("blocklist"); + check("muc"); + check("private"); + check("smacks"); + check("mam"); + check("bookmarks"); + }; + + array {"Mobile"; check("smacks"); check("csi_simple", "csi_battery_saver")}; + + array {"Advanced Mobile"; check("cloud_notify")}; + + array {"A/V Calling"; check("turn_external", "external_services", "turncredentials", "extdisco")}; + +}; + +function check_compliance() + local compliant = true; + for _, suite in ipairs(compliance) do + local section = suite:pop(1); + if module:get_option_boolean("compliance_" .. section:lower():gsub("%A", "_"), true) then + local missing = set.new(suite:filter(function(m) return type(m) == "string" end):map(function(m) return "mod_" .. m end)); + if suite[1] then + if compliant then + compliant = false; + module:log("warn", "Missing some modules for XMPP Compliance 2023"); + end + module:log("info", "%s Compliance: %s", section, missing); + end + end + end + + if compliant then module:log("info", "XMPP Compliance 2023: Compliant ✔️"); end +end + +if prosody.start_time then + check_compliance() +else + module:hook_global("server-started", check_compliance); +end +

# mod_auth_token

This module enables Prosody to authenticate time-based one-time-pin (TOTP) HMAC tokens.

This is an alternative to "external authentication" which avoids the need to
make a blocking HTTP call to the external authentication service (usually a web application backend).

Instead, the application generates the HMAC token, which is then sent to
Prosody via the XMPP client and Prosody verifies the authenticity of this
token.

If the token is verified, then the user is authenticated.

## Luarocks dependencies

You'll need to install the following luarocks

  otp 0.1-5
  luatz 0.3-1

## How to generate the TOTP seed and shared signing secret

You'll need a shared OTP_SEED value for generating time-based one-time-pin
(TOTP) values and a shared private key for signing the HMAC token.

You can generate the OTP_SEED value with Python, like so:

    >>> import pyotp
    >>> pyotp.random_base32()
    u'XVGR73KMZH2M4XMY'

and the shared secret key as follows:

    >>> import pyotp
    >>> pyotp.random_base32(length=32)
    u'JYXEX4IQOEYFYQ2S3MC5P4ZT4SDHYEA7'

## Configuration

Firest you need to enable the relevant modules to your Prosody.cfg file.

Look for the line `modules_enabled` (either globally or for your
particular `VirtualHost`), and then add the following to tokens:

    modules_enabled = {
        -- Token authentication
            "auth_token";
            "sasl_token";
    }

The previously generated token values also need to go into your Prosody.cfg file:

    authentication = "token";
    token_secret = "JYXEX4IQOEYFYQ2S3MC5P4ZT4SDHYEA7";
    otp_seed = "XVGR73KMZH2M4XMY";

The application that generates the tokens also needs access to these values.

For an example on how to generate a token, take a look at the `generate_token`
function in the `test_token_auth.lua` file inside this directory.

## Custom SASL auth

This module depends on a custom SASL auth mechanism called X-TOKEN and which
is provided by the file `mod_sasl_token.lua`.

Prosody doesn't automatically pick up this file, so you'll need to update your
configuration file's `plugin_paths` to link to this subdirectory (for example
to `/usr/lib/prosody-modules/mod_auth_token/`).

## Generating the token

Here's a Python snippet showing how you can generate the token that Prosody
will then verify:

    import base64
    import pyotp
    import random

    # Constants
    OTP_INTERVAL = 30
    OTP_DIGITS = 8

    jid = '{}@{}'.format(username, domain)

    otp_service = pyotp.TOTP(
        OTP_SEED,  # OTP_SEED must be set to the value generated previously (see above)
        digits=OTP_DIGITS,
        interval=OTP_INTERVAL
    )
    otp = otp_service.generate_otp(otp_service.timecode(datetime.utcnow()))

    nonce = ''.join([str(random.randint(0, 9)) for i in range(32)])
    string_to_sign = otp + nonce + jid
    signature = hmac.new(token_secret, string_to_sign, hashlib.sha256).digest()
    token = u"{} {}".format(otp+nonce, base64.b64encode(signature))