File

mod_storage_ldap/ldap/vcard.lib.lua @ 5193:2bb29ece216b

mod_http_oauth2: Implement stateless dynamic client registration Replaces previous explicit registration that required either the additional module mod_adhoc_oauth2_client or manually editing the database. That method was enough to have something to test with, but would not probably not scale easily. Dynamic client registration allows creating clients on the fly, which may be even easier in theory. In order to not allow basically unauthenticated writes to the database, we implement a stateless model here. per_host_key := HMAC(config -> oauth2_registration_key, hostname) client_id := JWT { client metadata } signed with per_host_key client_secret := HMAC(per_host_key, client_id) This should ensure everything we need to know is part of the client_id, allowing redirects etc to be validated, and the client_secret can be validated with only the client_id and the per_host_key. A nonce injected into the client_id JWT should ensure nobody can submit the same client metadata and retrieve the same client_secret
author Kim Alvefur <zash@zash.se>
date Fri, 03 Mar 2023 21:14:19 +0100
parent 830:f160166612c2
line wrap: on
line source

-- 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.
--

local st = require 'util.stanza';

local VCARD_NS = 'vcard-temp';

local builder_methods = {};

local base64_encode = require('util.encodings').base64.encode;

function builder_methods:addvalue(key, value)
    self.vcard:tag(key):text(value):up();
end

function builder_methods:addphotofield(tagname, format_section)
    local record = self.record;
    local format = self.format;
    local vcard  = self.vcard;
    local config = format[format_section];

    if not config then
        return;
    end

    if config.extval then
        if record[config.extval] then
            local tag = vcard:tag(tagname);
            tag:tag('EXTVAL'):text(record[config.extval]):up();
        end
    elseif config.type and config.binval then
        if record[config.binval] then
            local tag = vcard:tag(tagname);
            tag:tag('TYPE'):text(config.type):up();
            tag:tag('BINVAL'):text(base64_encode(record[config.binval])):up();
        end
    else
        module:log('error', 'You have an invalid %s config section', tagname);
        return;
    end

    vcard:up();
end

function builder_methods:addregularfield(tagname, format_section)
    local record = self.record;
    local format = self.format;
    local vcard  = self.vcard;

    if not format[format_section] then
        return;
    end

    local tag = vcard:tag(tagname);

    for k, v in pairs(format[format_section]) do
        tag:tag(string.upper(k)):text(record[v]):up();
    end

    vcard:up();
end

function builder_methods:addmultisectionedfield(tagname, format_section)
    local record = self.record;
    local format = self.format;
    local vcard  = self.vcard;

    if not format[format_section] then
        return;
    end

    for k, v in pairs(format[format_section]) do
        local tag = vcard:tag(tagname);

        if type(k) == 'string' then
            tag:tag(string.upper(k)):up();
        end

        for k2, v2 in pairs(v) do
            if type(v2) == 'boolean' then
                tag:tag(string.upper(k2)):up();
            else
                tag:tag(string.upper(k2)):text(record[v2]):up();
            end
        end

        vcard:up();
    end
end

function builder_methods:build()
    local record = self.record;
    local format = self.format;

    self:addvalue(              'VERSION',     '2.0');
    self:addvalue(              'FN',          record[format.displayname]);
    self:addregularfield(       'N',           'name');
    self:addvalue(              'NICKNAME',    record[format.nickname]);
    self:addphotofield(         'PHOTO',       'photo');
    self:addvalue(              'BDAY',        record[format.birthday]);
    self:addmultisectionedfield('ADR',         'address');
    self:addvalue(              'LABEL',       nil); -- we don't support LABEL...yet.
    self:addmultisectionedfield('TEL',         'telephone');
    self:addmultisectionedfield('EMAIL',       'email');
    self:addvalue(              'JABBERID',    record.jid);
    self:addvalue(              'MAILER',      record[format.mailer]);
    self:addvalue(              'TZ',          record[format.timezone]);
    self:addregularfield(       'GEO',         'geo');
    self:addvalue(              'TITLE',       record[format.title]);
    self:addvalue(              'ROLE',        record[format.role]);
    self:addphotofield(         'LOGO',        'logo');
    self:addvalue(              'AGENT',       nil); -- we don't support AGENT...yet.
    self:addregularfield(       'ORG',         'org');
    self:addvalue(              'CATEGORIES',  nil); -- we don't support CATEGORIES...yet.
    self:addvalue(              'NOTE',        record[format.note]);
    self:addvalue(              'PRODID',      nil); -- we don't support PRODID...yet.
    self:addvalue(              'REV',         record[format.rev]);
    self:addvalue(              'SORT-STRING', record[format.sortstring]);
    self:addregularfield(       'SOUND',       'sound');
    self:addvalue(              'UID',         record[format.uid]);
    self:addvalue(              'URL',         record[format.url]);
    self:addvalue(              'CLASS',       nil); -- we don't support CLASS...yet.
    self:addregularfield(       'KEY',         'key');
    self:addvalue(              'DESC',        record[format.description]);

    return self.vcard;
end

local function new_builder(params)
  local vcard_tag = st.stanza('vCard', { xmlns = VCARD_NS });

  local object = {
      vcard   = vcard_tag,
      __index = builder_methods,
  };

  for k, v in pairs(params) do
      object[k] = v;
  end

  setmetatable(object, object);

  return object;
end

local _M = {};

function _M.create(params)
  local builder = new_builder(params);

  return builder:build();
end

return _M;